Gettering cover mechanism of nozzle

Technical Field

The utility model relates to a gun fitting, in particular to a gun mounted in the gun body parts receives the gas hood mechanism of.

Background Art

The present gun are the oil directly to the oil tank, the oil tank the barrel is connected to the part of the relatively large pores, so it would be prone to cause leakage of the oil, at the same time the leakage of the oil and gas is also easy to be caused, it is mainly because of the gun body when inserted into the oil tank, the oil between the oil inlet and will have a relatively large space, so that the leakage of the oil and gas is easily caused.

Content of the invention

The purpose of the utility model is to overcome the deficiency in the prior art and provides a receives the gas hood mechanism of the gun, the oil gun and receives the gas hood can ensure good sealing between the oil tank, the oil inlet of the oil tank in the gun body and will not leave the space between the, oil and gas cannot easily leak.

The purpose of the utility model is realized like this:

receives the gas hood mechanism of a gun, the receives the gas hood mechanism is arranged on the barrel part of the gun, the mechanism comprises receives the gas hoodreceives the gas hood , the push rod mechanism, the receives the gas hood is connected with the push rod mechanism, the inner side surface of the gun barrel is provided with a return pipe, the outer lateral surface of the gun barrel part of the gun body is provided with a return pipe is communicated with the return air channel a, the push rod mechanism is set up in the return air channel, said air return passage connecting with the inside of the gun barrel.

Based on the above, the structure is an elastic receives the gas hood , the movably sleeved receives the gas hood on the barrel, one end of the through a hoop receives the gas hood is fixed on the gun body, the other end of the shrink on the barrel slide.

Based on the above stated, the receives the gas hood shrink on the barrel for sliding one end of the arch structure, and the cambered surface sealing with the outer edge of the oil inlet of the oil tank.

Based on the above, the structure is the arc receives the gas hood the intrados structure.

Based on the above stated, the push rod mechanism comprises a push rod, the push rod spring, the push rod and the air return channel is inserted, said push rod reciprocates within the air return passage, one end of the of the push rod with the push rod spring, the other end of the nut is fixed on a baffle plate, the baffle plate divides the receives the gas hood in the vertical, and the baffle seal is vertical the gun barrel;

The air-return passage is provided with the side surface of the vertical side walls of the return pipe is communicated through hole one , the return pipe is communicated with the part of a vertical through hole is a closed end, the side of the return air channel is also provided with a through hole two connected with the gun barrel, the gun barrel and is communicated with the through hole, the through hole of the push rod and slide between the second through hole.

Based on the above stated, the folding structure is a telescopic receives the gas hood of rubber material.

The utility model has the following advantages:

In the utility model are added to the original gun structure and push rod mechanism receives the gas hood , refueling to the fuel tank can be ensured at a time when no leakage of oil and gas, at the same time through all of the oil gas conveying pipeline, at the same time ensure that the when filled with oil, the furled receives the gas hood , and a push rod in the push rod mechanism receives the gas hood reset under the action of the spring, the blockage of the gas passage, effectively prevent the leakage of oil and gas.

Description of drawings

Figure 1 is the structure diagram of the of the present utility model.

Mode of execution

Below an embodiment of combining specific to the present utility model further described.

As shown in Figure 1, a receives the gas hood mechanism of the gun, characterized in that the receives the gas hood mechanism is arranged on the gun barrel 1 position, the mechanism comprises receives the gas hoodreceives the gas hood 2, the push rod mechanism 3, the receives the gas hood 2 and the push rod mechanism 3 is connected, the barrel 1 is provided with a inner side of the pipe 4, the barrel 1 of the outer side of a part of the gun body is provided with a return pipe 4 is communicated with a return-air passage 5, the push rod mechanism 3 is arranged in the return air channel 5 inner, the air return channel 5 and the barrel 1 is connected with the. The push rod mechanism through receives the gas hood mechanism 3 combination, realize the time of refueling to the fuel tank, leakage of oil and gas can not be generated, and the output gas and oil of the channel is smooth, when the oil tank is filled with oil, through artificial will be furled receives the gas hood , at this time pushes the push rod mechanism 3 return, blocking the gas passage, it will not produce the leakage of oil and gas. receives the gas hood and the synchronous movement of the push rod mechanism, fundamentally realizing without leakage of oil gas.

Based on the above stated, the receives the gas hood 2 is an elastic structure, the stated receives the gas hood 2 activities is sleeved on the barrel 1 the upper, the receives the gas hood 2 through a one end of the hoop 6 is fixed on the gun body, the other end of the barrel 1 shrink on the sliding. The receives the gas hood 2 is a telescopic folding structure of rubber material. receives the gas hood of the elastic structure 2 with mainly in order to refuel the time, can realize receives the gas hood 2 the return movement of the, so as to drive the push rod mechanism 3 movement, the movement of the joint. receives the gas hood 2 the telescopic structure of the foldable, receives the gas hood can be ensured, and the 2 length. receives the gas hood one end fixed, and between oil filler of the fuel tank to form a sealed space, the oil and gas leakage can be prevented.

Based on the above stated, the receives the gas hood 2 in the barrel 1 is a sliding one end of the structure, and the cambered surface sealing with the outer edge of the oil inlet of the oil tank. The receives the gas hood 2 the structure of the arc surface of the inner arc structure. Intrados structure receives the gas hood of 2 receives the gas hood and the oil tank on the one hand, ensures the depth between the oil-sealing, on the other hand can be mounted in the fuel tank is part of the oil filling port, a step to realize more receives the gas hood of the 2 sealing of the oil filling port of the fuel tank.

Based on the above stated, the push rod mechanism 3 comprises a push rod 31, push rod spring 32, the push-rod 31 and the return air channel 5 is inserted, the push-rod 31 in the return air channel 5 the reciprocating movement, the push rod 31 is one end of a push rod spring 13, the other end of the nut is fixed on a baffle plate 7 is, the baffle plate 7 the vertical sealing clamp receives the gas hood 2 inner, the baffle plate 7 and also with the barrel 1 is the vertical seal;

The return air channel 5 is provided with the side surface of the return-air duct 4 with the vertical side walls through hole one 501, the return pipe 4 and through hole one 501 is vertically communicated is closed, the air return channel 5 is also provided with a side surface of the with the barrel 1 through hole two communicated 502, the through hole two 502 and the barrel 1 is connected to, the push rod 31 in through hole one 501 and through hole two 502 sliding between. The main body of the push rod through a baffle plate 7 is fixed on the receives the gas hood 2 on, realizing receives the gas hood 2 and synchronous movement of the push rod mechanism. Baffle 7 can be clamped on the is receives the gas hood 2 the folding part, can be just so the baffle plate 7 is installed in the part, is relatively fixed. Furthermore, through hole one 501 and through hole two 502 through the push rod 31 is connected with and for shielding, and push rod 31 through the push rod spring 32 and receives the gas hood 2 shrink realize a reset, thereby realizing through hole one 501 and through hole two 502 the shelter, the time when the need to refuel, stretching receives the gas hood 2 can realize the push rod 31 of the outward movement, the push rod spring 32 the position of the stretching to larger, this reciprocating cycle, the leakage of oil and prevent the oil and gas.