Reversal rail hydraulic climbing form for concrete pouring of high and steep slope

The invention relates to a reversal rail hydraulic climbing form for concrete pouring of a high and steep slope. The reversal rail hydraulic climbing form comprises a formwork (25), a traveling device and a rail (21), wherein the formwork (25) is loaded on the traveling device; the rail (21) is I-shaped; a rail support (20) is arranged at the lower part of the rail (21); anchor rods (19) inserted into a bedrock surface (24) are uniformly distributed at the bottom of the rail support (20); clamping holes are uniformly formed in the upper side of the rail (21); the traveling device consists of traveling wheels (1), a main shaft (4), an auxiliary shaft (7), reversal wheels (9), traveling clamping teeth (17), a hydraulic climbing oil cylinder (18) and a traveling bracket. According to the reversal rail hydraulic climbing form, the formwork can be pulled by a hydraulic system to automatically lift on a slope surface, the uplift pressure of concrete can be balanced by reversal wheel pressure, ...

Grab handle for storage barrel

The present invention discloses a grab handle for a storage barrel, including a suspension part and a handle part, the suspension part is connected with the handle part through an external circular pipe, the structure of the suspension part is formed by connecting a suspension ring and a suspension ear, the handle part is divided into a threejaw bearing chassis, a rotary disc arranged on the chassis and a claw, wherein a projecting portion of the threejaw bearing chassis is grooved, the claw is mounted in the groove and connected with the rotary disc, the rotary disc is provided with a elongated slot hole, the distance of semi-circle orifices locating on the elongated slot hole end from the center is different, and the rotary disc is connected with a torsion shaft. The structure of the device is simple, operation is convenient and it is suitable for fetching and feeding the storage barrel.

Circular concrete culvert mounting device

The invention discloses a circular concrete culvert mounting device. The device comprises a downstream end, an upstream end, a steel wire rope and a tensioner, wherein the downstream end is an L-shaped frame formed by fixedly connecting a vertical part with a horizontal part; the upstream end is a rectangular frame provided with transverse rib columns; the tensioner is fixed at the horizontal part, one end of the steel wire rope penetrates through the tensioner, and the other end is fixedly connected with one transverse rib column. The device can be used for mounting circular concrete culverts in place at a time, repeated adjustment is not required, the water stop effect at culvert joints is good, follow-up treatment is not required, the device is very convenient to operate, and the construction efficiency can be greatly improved; the device is simple to machine and low in cost.

A fetching tool of slant conveyor sleeve for spent fuel assembly

The invention discloses a fetching tool for slant conveyor sleeve for spent fuel assembly. The device comprises a hanger connecting with a lug through a hinge pin; a barrel and flange is fixed on the lug; one end of pipe is fixedly connected with the lug, another end is connected with a sleeve; core rod is positioned in the pipe; upper end of the core rod is threadingly connected with a screw nut, lower end is connected with a pull rod positioned in sleeve; the sleeve is provided with a groove hole for accommodating a steel ball; the groove hole is conical or spherical surface near the outer surface. The device has merits of simple structure, convenient operation and safety and reliability.

Grab handle for storage barrel

The present invention discloses a grab handle for a storage barrel, including a suspension part and a handle part, the suspension part is connected with the handle part through an external circular pipe, the structure of the suspension part is formed by connecting a suspension ring and a suspension ear, the handle part is divided into a threejaw bearing chassis, a rotary disc arranged on the chassis and a claw, wherein a projecting portion of the threejaw bearing chassis is grooved, the claw is mounted in the groove and connected with the rotary disc, the rotary disc is provided with a elongated slot hole, the distance of semi-circle orifices locating on the elongated slot hole end from the center is different, and the rotary disc is connected with a torsion shaft. The structure of the device is simple, operation is convenient and it is suitable for fetching and feeding the storage barrel.

Inner width detection ruler

The invention discloses an inner width detection ruler which is formed by the combination of a compression spring, a fixed scale, a sliding scale, an extension bar for the fixed scale, an extension bar for the sliding scale and a detection head, wherein the extension bar for the fixed scale, the fixed scale, the extension bar for the sliding scale and the sliding scale are connected by screw threads, and an opening which is in line with the size of the sliding scale is arranged on the fixed scale; and the sliding scale is arranged in the opening and is in slide connection with the fixed scale, a limit screw used for fixing the position of the sliding scale is arranged on the fixed scale, a stop screw used for preventing the sliding scale from falling or rotating is arranged on the sliding scale, and the compression spring is positioned between the sliding scale and the fixed scale so as to ensure that both ends of the detection ruler can respectively closely contact two detection points ...

Heavy water tank

The invention belongs to the technical field of nuclear reactors and particularly relates to a heavy water tank. The heavy water tank comprises an upper flange, a main cylinder, a lower flange and a lower seal head assembly, wherein the upper end of the main cylinder is welded with the upper flange; the lower end of the main cylinder is connected with the lower seal head assembly; an overflow cofferdam assembly is fixedly arranged on an inner wall of the main cylinder through bolts; a lower grid plate assembly is arranged on the lower seal head assembly, comprises a lower grid plate and further comprises a vertical hole-path support member, cold source and hot source vertical hole-path support members and a safe rod guide tube support member which are fixed on the lower grid plate through bolts; and the lower grid plate is arranged on a short link through bolts. The lower grid plate assembly further comprises a support short cylinder on which the lower grid plate is fixed, and the support ...

A fetching tool of slant conveyor sleeve for spent fuel assembly

The invention discloses a fetching tool for slant conveyor sleeve for spent fuel assembly. The device comprises a hanger connecting with a lug through a hinge pin; a barrel and flange is fixed on the lug; one end of pipe is fixedly connected with the lug, another end is connected with a sleeve; core rod is positioned in the pipe; upper end of the core rod is threadingly connected with a screw nut, lower end is connected with a pull rod positioned in sleeve; the sleeve is provided with a groove hole for accommodating a steel ball; the groove hole is conical or spherical surface near the outer surface. The device has merits of simple structure, convenient operation and safety and reliability.

Gravity type automatic grasper

Installation device is contained to concrete pipe

The utility model discloses an installation device is contained to concrete pipe, including low reaches end, upper reaches end, wire rope and turn -buckle, the L type frame of low reaches end for constituting by vertical portion and horizontal part fixed connection, the rectangular frame of upper reaches end for being provided with horizontal rib post, the turn -buckle is fixed on the horizontal part, turn -buckle, other end fixed connection are passed to wire rope one end horizontal rib post. The utility model is used for but one -time Setup target in place when installation concrete pipe was contained, need not to adjust repeatedly, and tube coupling seam crossing sealing effect is good moreover, need not subsequent processing, and it is very convenient to operate, can improve the efficiency of construction greatly, device processing is simple, low cost.

Embedded part structure penetrating through pool of reactor

The invention belongs to the field of structural members, specifically relating to an embedded part structure penetrating through a pool of a reactor. The embedded part structure comprises a retaining flange 2 of the embedded part, a cylinder body 3 of the embedded part, an anchoring nail 4, a pipe connecting flange 5, a steel lining 6, an internal strain ring 7, an external strain ring 8, a leakdetection pipe 9 and an adjusting bracket 10, wherein the internal strain ring 7 is sleeved inside the cylinder body 3 of the embedded part. One edge of the internal strain ring 7 is in welding connection with the cylinder body 3 of the embedded part while the other edge is in welding connection with the pipe connecting flange 5. The external strain ring 8 is sleeved outside the cylinder body 3 of the embedded part. One edge of the external strain ring 8 is in welding connection with the cylinder body 3 of the embedded part while the other edge is in welding connection with the pipe connecting flange ...

Fuel assembly transfer device

The invention discloses a fuel assembly transfer device, comprising a drive mechanism, an intermediate speed reducer (3), a column spinner (4), a connecting frame (5), a transmission shaft, a guide column (8), a rack (30), a grip, etc. The transfer device is characterized in that the drive mechanism is connected with the column spinner (4) by an intermediate accelerator (3); the column spinner (4) is connected with the guide column (8) as a whole by the connecting frame (5) and the transmission shaft; and the guide column is internally provided with the rack (30) and the grip. The device can self-lock and is high in positioning accuracy, good in reliability, easy for maintenance and applicable to distant range operation.

Faced dam rolling slope-fixing construction method

The invention discloses a faced dam rolling slope-fixing construction method, which comprises the following steps of: before construction, mounting and fixing a first-layer template, performing cushion layer material rolling construction and embedding lacing bars in the cushion layer materials; mechanically lifting the template for 5CM and pouring mortar after the first-layer rolling is qualified; mounting a lifting trolley on an end template after the mortar strength is allowed, and mounting a second-layer template for rolling, and lifting the template by using a trolley for pouring the mortar after qualification; during the third-layer construction, arranging rack tracks capable of moving up and down on two end templates, moving the trolley to the track position, jacking the trolley by using a jack and rotating a walking device for 90 degrees, and putting the walking device on the track so as to make the trolley walk on the track of the second-layer template for working; and lifting the ...

Construction method for carrying out rolling compaction and slope reinforcement on faced dam

The invention discloses a construction method for carrying out rolling compaction and slope reinforcement on a faced dam. The method comprises the following steps: before construction, installing and fixing a first-floor template, then carrying out rolling compaction on a bedding material, and embedding tie bars into the bedding material; after the first floor is subject to rolling compaction to be qualified, utilizing a mechanical lifting template 5CM to carry out mortar pouring; after the mortar strength is allowed, arranging a lifting trolley on an end template, installing a second-floor template for carrying out rolling compaction, and utilizing a trolley lifting template to carry out mortar pouring after the second floor is subject to rolling compaction to be qualified; in the process of constructing a third floor, arranging a rack track capable of moving up and down on two templates at the end, moving the trolley to the orbital position, utilizing a jack to jack up the trolley, then ...

Flow-guide tank

The invention belongs to the technical field of nuclear reactors, and in particular relates to a flow-guide tank, which comprises an upper cover board 1, a main barrel body 11, a lower cover board 6, a small cover board component 12, a vertical hole guide tube 8, a safety bar guide tube outer sleeve 5, an inlet distribution cavity barrel body 3, an inlet baffle 4, a main loop inlet connecting tube 2, a natural circulation flap valve connecting tube 10, a helium inlet/outlet connecting tube 7, a pressure guide tube and a thermometer protection sleeve 9. The upper end and the lower end of the main barrel body 11 are respectively connected with the upper cover board 1 and the lower cover board 6 in a welding manner; and a gear rack quick-starting driving mechanism is arranged on the small cover board component 12. The flow-guide tank provided by the invention has the advantages of safety, convenience and good sealing property, and can be applied to pond type nuclear reactors.

Centralized controlling system for macrotype ammonia refrigerating device in construction site

The invention discloses a centralized control system for the ammonia refrigeration equipment in the construction site, relating to the distributed control system (DCS) field and belonging to the combination and application systems for large-scale equipment in the construction site. The centralized control system is mainly composed of an industrial computer, a programmable logic controller PLC, an intelligent temperature-controlled meter, a temperature sensor and a system module; wherein, the industrial computer is connected with the programmable logic controller PLC through an RS232 interface; the programmable logic controller PLC is connected with a refrigeration unit through a switch or analog I/O interface; the intelligent temperature-controlled meter is connected with the refrigeration unit through the temperature sensor, and also connected with the industrial computer through an RS-485 interface; the system module is connected with a CPU chip in the industrial computer through a system ...

Embedded part structure penetrating through pool of reactor

The invention belongs to the field of structural members, specifically relating to an embedded part structure penetrating through a pool of a reactor. The embedded part structure comprises a retaining flange 2 of the embedded part, a cylinder body 3 of the embedded part, an anchoring nail 4, a pipe connecting flange 5, a steel lining 6, an internal strain ring 7, an external strain ring 8, a leak detection pipe 9 and an adjusting bracket 10, wherein the internal strain ring 7 is sleeved inside the cylinder body 3 of the embedded part. One edge of the internal strain ring 7 is in welding connection with the cylinder body 3 of the embedded part while the other edge is in welding connection with the pipe connecting flange 5. The external strain ring 8 is sleeved outside the cylinder body 3 of the embedded part. One edge of the external strain ring 8 is in welding connection with the cylinder body 3 of the embedded part while the other edge is in welding connection with the pipe connecting ...

Grab handle for sealed pot with breakage component

The present invention discloses a grab handle for a sealed pot with a breakage component, the primary structure is that a handle body is connected with a cylinder, post rods are arranged in the handle body and the cylinder, claws are fixed on the handle body through pins and two claws are in a same plane, the lower end of the post rod is provided with a cam, the upper end is provided with two rows of annular recesses, star-shaped blocks are connected with the post rod through pins and can rotate around shafts, the upper end of the post rod is connected with an opening device through a draw rod, the cylinder is provided with a force limiting device, the limiting force of the force limiting device is more that the sum of the weight of the draw rod, the post rod, the star-shaped block and the pin, and is less than the sum of the weight of the opening device, the force limiting device, the cylinder, the handle body, a roller, the pin and the claw. The grab handle of the invention has a simple ...

Locking structure of bolt and nut

The invention belongs to the technical field of a mechanical device, especially relating to a locking structure of a bolt and a nut, comprising the nut and the bolt, wherein an external screw is mounted at the outside of the bolt, an internal screw matched with the external screw is mounted at the inside of the nut; the top end of the bolt is a hexagon head; the upper end of the nut is provided with a tooth-shaped end; the bottom end of the bolt is connected at a lower flange, and the internal screw and the external screw are connected between the bolt and the nut, as well as compress an upper flange; a locking sleeve is mounted above the nut; a hexagon hole matched with the hexagon head at the upper end of the bolt is arranged in the locking sleeve, and the lower end of the locking sleeve is provided with a protruding tooth-shape bar; the hexagon head at the top end of the bolt inserts into the hexagon hole in the locking sleeve, and the tooth-shape bar at the lower end of the locking ...

Grab handle for sealed pot with breakage component

The present invention discloses a grab handle for a sealed pot with a breakage component, the primary structure is that a handle body is connected with a cylinder, post rods are arranged in the handle body and the cylinder, claws are fixed on the handle body through pins and two claws are in a same plane, the lower end of the post rod is provided with a cam, the upper end is provided with two rows of annular recesses, star-shaped blocks are connected with the post rod through pins and can rotate around shafts, the upper end of the post rod is connected with an opening device through a draw rod, the cylinder is provided with a force limiting device, the limiting force of the force limiting device is more that the sum of the weight of the draw rod, the post rod, the star-shaped block and the pin, and is less than the sum of the weight of the opening device, the force limiting device, the cylinder, the handle body, a roller, the pin and the claw. The grab handle of the invention has a simple ...