Connected riveting pressure retaining valve

Abstract

The utility model provides a one-piece riveting pressure retaining valve, and belongs to the technical field of automobile accessories. The problem that an existing pressure retaining valve is not stable enough in connection is solved. The one-piece riveting pressure retaining valve comprises a middle valve body, an upper valve body is installed on one side of the inner wall of the middle valve body, a lower valve body is installed on the other side of the inner wall of the middle valve body, a plastic buckle is arranged outside the lower valve body and close to one side of the middle valve body in a sleeving mode, a valve element is installed in the center of the inner wall of the middle valve body, and a sliding piston is arranged in the valve element in a sliding mode. A spring is installed on one side of the inner wall of the sliding piston, one side of the spring is connected with the inner wall of the valve element, a sealing gasket is embedded in one side of the valve element, one side of the sealing gasket makes contact with the sliding piston, the upper valve body is sleeved with a chuck, the top and the bottom of one side of the lower valve body are each provided with a first pressing rivet, and one side of each first pressing rivet extends into the middle valve body. Second pressing rivets are arranged at the top and the bottom of one side of the upper valve body, and one sides of the second pressing rivets extend into the middle valve body. The connecting structure has the advantages of stable connection and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and relates to a pressure maintaining valve, in particular to a conjoined riveting pressure maintaining valve. BACKGROUND

[0002] The pressure maintaining valve, also known as a pressure retaining valve, is a valve device for controlling and maintaining the stability of system pressure. It can automatically adjust the opening of the valve when the system pressure fluctuates or is abnormal, so that the system pressure is maintained within the set range, preventing damage to the system caused by excessively high or low pressure.

[0003] For example, the Chinese patent document discloses a flexible and reliable pressure maintaining valve [application number: 202121093372.5; authorized publication number: CN214889130U], which is used on an automobile shock absorber. It includes a lower valve body, an upper valve body, a valve core, a sealing gasket, a sliding piston, and a spring. The lower valve body is provided with a straight gas outlet channel, and the gas outlet channel is provided with a guide pipe. An installation groove is formed on the outer wall of the guide pipe in the lower valve body. The spring is sleeved on the guide pipe. The sliding piston is provided with a bottom support part and is sleeved on the spring through the bottom support part. The sealing gasket is fixed on the upper end of the valve core. The center of the valve core is provided with a gas passage. The valve core is inserted and assembled in the guide pipe and covers the end face of the lower valve body and the bottom support part through the sealing gasket.

[0004] The inner wall of the upper valve body and the outer wall of the lower valve body in the above-mentioned pressure maintaining valve are matched through the concave-convex tooth structure, which is convenient for disassembly and assembly, and achieves the effect of flexible and reliable work. However, it lacks a tight connection structure, which can easily cause the assembled pressure maintaining valve to become loose, ultimately leading to the disassembly of the pressure maintaining valve and reducing the service life. SUMMARY

[0005] The utility model aims at the above-mentioned problems existing in the prior art, and provides a conjoined riveting pressure maintaining valve with a tight connection structure.

[0006] The utility model discloses a purpose can be realized through the following technical scheme: a kind of integrated riveting pressure-keeping valve, the upper valve body is installed in the one side of the inside wall of the middle valve body, the lower valve body is installed in the other side of the inside wall of the middle valve body, the outside of the lower valve body and the side close to the middle valve body are equipped with plastic buckle, the center of the inside wall of the middle valve body is installed with valve core, the inside of the valve core is slidably provided with sliding piston, the one side of the inside wall of the sliding piston is installed with spring, the one side of the spring is connected with the inside wall of valve core, the one side of the valve core is embedded with sealing washer, the one side of the sealing washer is contacted with sliding piston, the outside of the upper valve body is equipped with chuck, the top and bottom of the one side of the lower valve body are all provided with riveting one, the one side of the riveting one extends to the inside of the middle valve body, the top and bottom of the one side of the upper valve body are all provided with riveting two, the one side of the riveting two extends to the inside of the middle valve body.

[0007] When the integrated riveting pressure-keeping valve works, riveting one and riveting two cooperate, so that the lower valve body and the middle valve body are tightly connected, and the upper valve body and the middle valve body are tightly connected, realizing an integrated riveting structure, which is compact in structure and stable in connection, and the two end parts do not fall off, and the service life is long.

[0008] In the integrated riveting pressure-keeping valve, the outside of the lower valve body is equipped with an O-ring, and the outside of the middle valve body is equipped with a plastic ring. The O-ring improves the sealing performance of the pressure-keeping valve.

[0009] In the integrated riveting pressure-keeping valve, the top of the middle valve body is connected with a plurality of support rods, the top of each support rod is connected with a connecting plate, and the top of the connecting plate is provided with a connecting hole. Through the cooperation of the support rods, the connecting plate and the connecting hole, the pressure-keeping valve can be connected with external equipment by penetrating the connecting hole with a bolt.

[0010] In the integrated riveting pressure-keeping valve, an oil storage cavity is formed in the valve core, an oil injection hole is formed in the bottom of the inner wall of the oil storage cavity, a sealing plug is filled in the bottom of the inner wall of the oil injection hole, a plurality of micro oil storage holes are formed in the inner wall of the oil storage cavity, an oil absorption cotton plate is embedded in each oil storage hole, and the side of the oil absorption cotton plate away from the oil storage hole is in contact with the sliding piston. The oil storage cavity can store lubricating oil.

[0011] Compared with the prior art, the integrated riveting pressure-keeping valve can make the lower valve body and the middle valve body tightly connected, and the upper valve body and the middle valve body tightly connected through the cooperation of riveting one and riveting two, realizing an integrated riveting structure, which is compact in structure and stable in connection, and the two end parts do not fall off, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1It is a structure schematic view of the utility model.

[0013] Figure 2 It is a partial structure left view of the utility model.

[0014] Figure 3 It is a partial structure right view of the utility model.

[0015] Figure 4 It is a valve body structure enlarged view in the utility model.

[0016] In the drawing: 1, lower valve body; 2, O-ring; 3, plastic buckle; 4, sealing gasket; 5, sliding piston; 6, spring; 7, middle valve body; 8, upper valve body; 9, plastic snap ring; 10, pressure rivet one; 11, chuck; 12, pressure rivet two; 13, support rod; 14, connecting plate; 15, connecting hole; 16, valve core; 17, oil storage cavity; 18, oil absorption cotton board; 19, oil injection hole. Specific embodiments

[0017] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in conjunction with the drawings, but the utility model is not limited to these embodiments.

[0018] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses a middle valve body 7, the one side of the inner wall of middle valve body 7 is installed through the upper valve body 8, the other side of the inner wall of middle valve body 7 is installed through the lower valve body 1, the outside of lower valve body 1 and the side close to middle valve body 7 are equipped with plastic buckle 3, the center of the inner wall of middle valve body 7 is installed with valve core 16, the inside of valve core 16 is slidably provided with sliding piston 5, the inner wall of sliding piston 5 is installed with spring 6 on one side, the inner wall of valve core 16 is connected with spring 6 on one side, the one side of valve core 16 is embedded with sealing gasket 4, the one side of sealing gasket 4 is in contact with sliding piston 5, the outside of upper valve body 8 is equipped with chuck 11, the top and bottom of one side of lower valve body 1 are provided with pressure rivet one 10, the one side of pressure rivet one 10 extends to the inside of middle valve body 7, the top and bottom of one side of upper valve body 8 are provided with pressure rivet two 12, the one side of pressure rivet two 12 extends to the inside of middle valve body 7.

[0019] Further, the outside of lower valve body 1 is equipped with O-ring 2, the outside of middle valve body 7 is equipped with plastic snap ring 9. The top of middle valve body 7 is connected with a plurality of support rods 13, the top of support rod 13 is connected with connecting plate 14, the top of connecting plate 14 is provided with connecting hole 15.

[0020] The valve core 16 is provided with an oil storage cavity 17, an oil injection hole 19 is formed on one side of the inner wall bottom of the oil storage cavity 17, the bottom of the inner wall of the oil injection hole 19 is filled with a sealing plug, a plurality of micro oil storage holes are formed on the inner wall of the oil storage cavity 17, and the oil storage holes are inlaid with oil absorption cotton plates 18, and one side of the oil absorption cotton plates 18 away from the oil storage holes is in contact with the sliding piston 5.

[0021] When the integrated riveting pressure maintaining valve works, the lower valve body 1 and the middle valve body 7 are tightly connected, and the upper valve body 8 and the middle valve body 7 are tightly connected through the cooperation of the riveting 10 and the riveting 12, an integrated riveting structure is realized, the structure is compact and the connection is stable, the situation that the two end parts fall off does not exist, the service life is long, the lubricating oil in the oil storage cavity 17 is slowly released through the oil absorption cotton plate 18 in the process that the sliding piston 5 moves left and right, the sliding piston 5 is lubricated by using the released lubricating oil, friction damage is avoided, and noise generated by friction is reduced.

[0022] The specific embodiments described in the present application are only illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A valve for use in conjunction with a rivet press, comprising a valve body (7) characterised in that: The upper valve body (8) is installed on one side of the inner wall of the middle valve body (7), the lower valve body (1) is installed on the other side of the inner wall of the middle valve body (7), the plastic buckle (3) is arranged on the outer side of the lower valve body (1) and close to the middle valve body (7), the valve core (16) is installed at the center of the inner wall of the middle valve body (7), the sliding piston (5) is arranged in the valve core (16), the spring (6) is installed on one side of the inner wall of the sliding piston (5), one side of the spring (6) is connected with the inner wall of the valve core (16), the sealing gasket (4) is embedded on one side of the valve core (16), one side of the sealing gasket (4) is in contact with the sliding piston (5), the chuck (11) is arranged on the outer side of the upper valve body (8), the pressure rivet (10) is arranged on the top and the bottom of one side of the lower valve body (1), one side of the pressure rivet (10) extends to the inner side of the middle valve body (7), the pressure rivet (12) is arranged on the top and the bottom of one side of the upper valve body (8), one side of the pressure rivet (12) extends to the inner side of the middle valve body (7).

2. The one-piece crimping pressure maintaining valve according to claim 1, characterized in that: The O-shaped ring (2) is arranged on the outer side of the lower valve body (1), and the plastic ring (9) is arranged on the outer side of the middle valve body (7).

3. The one-piece, press-to-crimp valve of claim 1, wherein: The support rod (13) is connected to the top of the middle valve body (7), the connecting plate (14) is connected to the top of the support rod (13), and the connecting hole (15) is arranged on the top of the connecting plate (14).

4. The one-piece, press-to-crimp valve of claim 1, wherein: The oil storage cavity (17) is arranged on the valve core (16), the oil injection hole (19) is arranged on one side of the bottom of the inner wall of the oil storage cavity (17), the sealing plug is filled in the bottom of the inner wall of the oil injection hole (19), the micro oil storage holes are arranged on the inner wall of the oil storage cavity (17), the oil absorption cotton plate (18) is embedded in the inner side of the oil storage hole, and one side of the oil absorption cotton plate (18) away from the oil storage hole is in contact with the sliding piston (5).

Images