CN214036316U

CN214036316U - Oil compensating valve seat

Info

Publication number: CN214036316U
Application number: CN202022715650.8U
Authority: CN
Inventors: 陈太美; 陈威; 孙丽
Original assignee: Shanghai Weifude Machinery Group Co ltd
Current assignee: Shanghai Weifude Machinery Group Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-24
Anticipated expiration: 2030-11-20

Abstract

The utility model belongs to the technical field of the technique of valve and specifically relates to a mend oil valve disk seat is related to, including the disk seat body, the storage tank has been seted up on the disk seat body, the storage tank sets up to the annular, be provided with the sealing washer in the storage tank, the inner wall integrated into one piece in the storage tank is provided with the stopper on the disk seat body, the stopper is complete annular along the groove length direction extension of storage tank. This application has the effect of the steadiness between promotion disk seat body and the sealing washer.

Description

Oil compensating valve seat

Technical Field

The application relates to the technical field of valves, in particular to an oil replenishing valve seat.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like.

Among the numerous hydraulic diaphragm metering pumps in China at present, an oil supplementing valve is one of the essential components for ensuring the normal operation of the hydraulic diaphragm metering pump. In the working process of the hydraulic diaphragm metering pump, the oil in the hydraulic cavity is reduced due to leakage, and the normal work of the hydraulic diaphragm metering pump is influenced. The oil supplementing valve has the function of reducing the oil quantity of the hydraulic oil due to leakage in the compensation hydraulic cavity, so that the volume of the hydraulic oil in the hydraulic cavity between the plunger and the diaphragm is kept unchanged, and the normal work of the metering pump is ensured.

In order to ensure the connection and sealing of the oil replenishing valve and the cylinder body, a sealing ring is arranged on a valve seat, but the existing sealing ring is not tightly connected with the oil replenishing valve, so that the oil replenishing valve is easy to fall off.

SUMMERY OF THE UTILITY MODEL

In order to promote the steadiness between valve seat body and the sealing washer, this application provides an oil supplementing valve disk seat.

The application provides a mend oil valve disk seat adopts following technical scheme:

the utility model provides an oil supplementing valve seat, includes the disk seat body, the storage tank has been seted up on the disk seat body, the storage tank sets up to the annular, be provided with the sealing washer in the storage tank, the disk seat body is last to be provided with the stopper in the inner wall integrated into one piece of storage tank, the stopper extends along the groove length direction of storage tank and is complete annular.

Through adopting above-mentioned technical scheme, the stopper of setting on the disk seat body can realize spacing to the sealing washer for the sealing washer is more firm under the blockking of stopper, has improved the compactness between sealing washer and the storage tank, and the sealing washer is difficult for droing from the storage tank more, thereby makes the disk seat body better with sealed effect when being connected with the cylinder body.

Preferably, one side of the limiting block, which is close to the opening end of the accommodating groove, inclines towards the direction close to the bottom of the accommodating groove.

Through adopting above-mentioned technical scheme for the sealing washer is more convenient when installing into the storage tank, has reduced the installation degree of difficulty of sealing washer. The method specifically comprises the following steps: when the sealing ring is installed, the sealing ring can be gradually expanded along the inclined plane of the limiting block, so that the installation process is smoother. Meanwhile, the sealing ring is protected by a certain amount, so that the sealing ring is not easily scratched in the installation process. After the sealing ring is installed in the accommodating groove, the limiting block can block the sealing ring from being separated, and the limiting effect on the sealing ring is achieved.

Preferably, the sealing ring is provided with a limiting groove matched with the limiting block.

Through adopting above-mentioned technical scheme for spacing groove on the sealing washer can the joint on the stopper, and under the effect of spacing groove and stopper, the sealing washer is further fixed in the storage tank, has improved the steadiness of sealing washer greatly. The stopper of card in the spacing groove can play spacing effect to the sealing washer, and when the sealing washer had the trend that breaks away from the storage tank, the stopper tightly supported on the inner wall of spacing groove, with the sealing washer chucking in the storage tank for the difficult emergence of sealing washer drops.

Preferably, a positioning block is fixed on the valve seat body, the positioning block extends out towards the direction close to the sealing ring, and a positioning groove matched with the positioning block is formed in the sealing ring.

Through adopting above-mentioned technical scheme, when the sealing washer joint was in the storage tank, the locating piece can the joint in the constant head tank, has played the effect of restriction to the rotation of sealing washer in the storage tank for the sealing washer is more firm in the storage tank.

Preferably, the valve seat body on the two sides of the opening end of the accommodating groove is provided with a chamfer structure.

By adopting the technical scheme, the mounting difficulty of the sealing ring is reduced, and the sealing ring is more convenient to mount. The chamfer plays the effect of direction to the installation of sealing washer, and when the sealing washer was installed into the storage tank, the sealing washer can be expanded gradually along the chamfer on the storage tank, and the installation of sealing washer is more level and smooth, and the damage that causes the sealing washer is littleer.

Preferably, the sealing ring is provided with a cavity.

Through adopting above-mentioned technical scheme, the cavity that sets up makes the sealing washer can produce better deformation for the sealing washer is more convenient when installing into the storage tank. Meanwhile, the cavity enables the damping performance of the sealing ring to be better, and the sealing performance of the sealing ring is improved.

Preferably, when the sealing ring is clamped in the accommodating groove, the sealing ring is in a compressed state.

Through adopting above-mentioned technical scheme, when the sealing washer is blocked in the storage tank, because the sealing washer is in the state of compressed, the sealing washer has the trend of reconversion, and the sealing washer can expand in the storage tank for the sealing washer is inseparabler with the inner wall laminating of storage tank, and the sealing washer is difficult for droing more.

Preferably, one side of the sealing ring departing from the accommodating groove is integrally formed with a flange.

Through adopting above-mentioned technical scheme, with the sealing washer dress back in the storage tank, the turn-ups can hug closely on the disk seat body. When the valve seat body is connected with the cylinder body of the oil cylinder, the contact area between the valve seat body and the cylinder body is increased by the flanging, and the valve seat body is more tightly connected with the cylinder body, so that the sealing performance of the sealing ring is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the limiting block arranged on the valve seat body can limit the sealing ring, so that the sealing ring is more stable under the blocking of the limiting block, the tightness between the sealing ring and the accommodating groove is improved, and the sealing ring is more difficult to fall off from the accommodating groove;

2. the limiting block clamped in the limiting groove can limit the sealing ring, when the sealing ring tends to be separated from the accommodating groove, the limiting block tightly abuts against the inner wall of the limiting groove to clamp the sealing ring in the accommodating groove, so that the sealing ring is not easy to fall off;

3. the chamfer plays the effect of direction to the installation of sealing washer, and when the sealing washer was installed into the storage tank, the sealing washer can be expanded gradually along the chamfer on the storage tank, and the installation of sealing washer is more level and smooth, and the damage that causes the sealing washer is littleer.

Drawings

Fig. 1 is a schematic sectional view of an embodiment of the present application.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 3.

Reference numerals: 1. a valve seat body; 11. a containing groove; 12. a limiting block; 13. positioning blocks; 2. a seal ring; 21. a limiting groove; 22. positioning a groove; 23. a cavity; 24. and (5) flanging.

Detailed Description

The technical solutions in the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses oil replenishing valve seat. Referring to fig. 1 and 2, an oil compensating valve seat includes a valve seat body 1. The end face of the valve seat body 1 is provided with a containing groove 11, and the containing groove 11 is set to be in a complete annular shape. The containing groove 11 is formed by two sealing rings 2 which are mutually clamped in the containing groove 11, the containing groove 11 is filled with the sealing rings, and the sealing rings extend out of the containing groove 11. When the oil replenishing valve is installed, the sealing ring 2 on the valve seat body 1 can be abutted to the cylinder body of the oil cylinder.

Referring to fig. 1 and 2, a limiting block 12 is integrally formed on the valve seat body 1, and the limiting blocks 12 are respectively located on two vertical inner walls of the accommodating groove 11. The two stoppers 12 extend in directions approaching each other. The stopper 12 extends along the groove length direction of the accommodating groove 11, so that the stopper 12 forms a complete annular structure. When sealing washer 2 joint is in storage tank 11, stopper 12 can produce better clamping action to sealing washer 2 for sealing washer 2 is difficult for droing from storage tank 11.

Referring to fig. 2, for convenience of description, a side of the limiting block 12 close to the opening end of the accommodating groove 11 is defined as a top surface, and a side of the limiting block 12 close to the bottom of the accommodating groove 11 is defined as a bottom surface. The top surface inclines towards the direction close to the bottom of the accommodating groove 11, the bottom surface is parallel to the bottom of the accommodating groove 11, and the angle formed between the top surface and the bottom surface is an acute angle, so that the cross section of the limiting block 12 is in a right triangle shape.

When installing sealing washer 2 into storage tank 11, sealing washer 2 can be expanded along the top surface gradually, and the installation of sealing washer 2 is more level and smooth for sealing washer 2 is stuck into storage tank 11 more easily. When the sealing ring 2 tends to be separated from the accommodating groove 11, the bottom surface can well block the sealing ring 2, so that the sealing ring 2 is not easy to separate from the accommodating groove 11.

Referring to fig. 2, in order to further enhance the firmness of the seal ring 2 in the accommodating groove 11, two circumferential surfaces of the seal ring 2 are provided with limiting grooves 21 matched with the limiting blocks 12. When sealing washer 2 joint was in storage tank 11, stopper 12 can the joint in spacing groove 21, under the cooperation of stopper 12 and spacing groove 21, sealing washer 2 was difficult more breaks away from storage tank 11.

Referring to fig. 3 and 4, in order to prevent the seal ring 2 from slipping in the accommodating groove 11, a positioning block 13 is integrally formed on the valve seat body 1. The positioning block 13 is located on the inner wall of the accommodating groove 11, and the positioning block 13 is arranged near the opening end of the accommodating groove 11. The positioning block 13 extends toward the direction close to the gasket 2.

Referring to fig. 2, a positioning groove 22 matching with the positioning block 13 is formed on the sealing ring 2, so that when the sealing ring 2 is clamped in the accommodating groove 11, the positioning block 13 is clamped in the positioning groove 22.

Referring to fig. 2, the valve seat body 1 at both sides of the opening end of the accommodating groove 11 is provided with a chamfer structure, so that the sealing ring 2 is more convenient to be installed in the accommodating groove 11. The fillet that storage tank 11 both sides were chamfered has played the effect of guide to the installation of sealing washer 2 for sealing washer 2 can be expanded gradually along the arcwall face, and the installation of sealing washer 2 is more level and smooth, has reduced the installation degree of difficulty.

Referring to fig. 2, a cavity 23 is formed in the sealing ring 2, and the cavity 23 is disposed along the circumferential direction of the sealing ring 2 to form a closed annular cavity. The cavity 23 arranged on the sealing ring 2 enables the sealing ring 2 to generate larger deformation, and the sealing ring 2 is convenient to install in the accommodating groove 11.

When the sealing ring 2 is clamped in the accommodating groove 11, the sealing ring 2 is in a compressed state, and the cavity 23 is compressed and reduced, so that the sealing ring 2 expands in the accommodating groove 11 to fill the accommodating groove 11. Under the effect of the elastic force generated by the deformation of the sealing ring 2, the sealing ring 2 is attached to the inner wall of the accommodating groove 11 more tightly, so that the sealing ring 2 is not easy to fall off.

Referring to fig. 2, a flange 24 is integrally formed on a side of the sealing ring 2 away from the receiving groove 11, and the flanges 24 are respectively located on an inner ring and an outer ring of the sealing ring 2. When the seal ring 2 is mounted in the housing groove 11, the bead 24 abuts against the surface of the valve seat body 1. When the valve seat body 1 is installed on the cylinder body, the flange 24 can increase the contact area with the cylinder body, and further enhance the sealing performance between the valve seat body and the cylinder body.

The implementation principle of the embodiment of the application is as follows: the sealing ring 2 is aligned with the accommodating groove 11, and the positioning groove 22 on the sealing ring 2 is aligned with the positioning block 13. During extrusion sealing washer 2, packed into storage tank 11 with sealing washer 2, constant head tank 22 joint on sealing washer 2 is on locating piece 13, and spacing groove 21 joint on sealing washer 2 has guaranteed the steadiness of sealing washer 2 in storage tank 11 on stopper 12 for sealing washer 2 is difficult for taking place to drop.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an oil compensating valve disk seat which characterized in that: including disk seat body (1), storage tank (11) have been seted up on disk seat body (1), storage tank (11) set up to the annular, be provided with sealing washer (2) in storage tank (11), disk seat body (1) is gone up and is provided with stopper (12) in the inner wall integrated into one piece of storage tank (11), stopper (12) extend along the groove length direction of storage tank (11) and be complete annular.

2. The oil compensating valve seat of claim 1, wherein: one side of the limiting block (12) close to the opening end of the containing groove (11) inclines towards the direction close to the bottom of the containing groove (11).

3. The oil compensating valve seat according to claim 2, wherein: and the sealing ring (2) is provided with a limiting groove (21) matched with the limiting block (12).

4. The oil compensating valve seat of claim 1, wherein: the valve seat is characterized in that a positioning block (13) is fixed on the valve seat body (1), the positioning block (13) extends out towards the direction close to the sealing ring (2), and a positioning groove (22) matched with the positioning block (13) is formed in the sealing ring (2).

5. The oil compensating valve seat of claim 1, wherein: and chamfer structures are arranged on the valve seat bodies (1) on the two sides of the opening end of the accommodating groove (11).

6. The oil compensating valve seat of claim 1, wherein: and a cavity (23) is formed in the sealing ring (2).

7. The oil compensating valve seat of claim 1, wherein: when the sealing ring (2) is clamped in the accommodating groove (11), the sealing ring (2) is in a compressed state.

8. The oil compensating valve seat of claim 1, wherein: one side integrated into one piece that sealing washer (2) deviate from storage tank (11) is provided with turn-ups (24).