CN223137137U

CN223137137U - Buffer valve

Info

Publication number: CN223137137U
Application number: CN202422590027.2U
Authority: CN
Inventors: 李琦; 成尚春
Original assignee: Guangdong Jicheng Hydraulic Machinery Co ltd
Current assignee: Guangdong Jicheng Hydraulic Machinery Co ltd
Priority date: 2024-10-25
Filing date: 2024-10-25
Publication date: 2025-07-22
Anticipated expiration: 2034-10-25

Abstract

The utility model relates to a buffer valve, which comprises a valve main body, wherein a valve core cavity, a medium inlet channel and a medium outlet channel are arranged in the valve main body, a movable valve core is movably connected in the valve core cavity and forms a lower cavity and an upper cavity, a valve core hole is formed in the movable valve core, the movable valve core can be movably connected with the valve core cavity to enable the valve core hole to be aligned with the medium inlet channel and the medium outlet channel respectively or at least partially staggered, a shunt channel is arranged on the valve main body, a feeding end and a discharging end of the shunt channel are respectively communicated with the medium inlet channel and the lower cavity, the shunt channel is connected with an adjusting valve core, a plurality of adjusting through holes with different apertures are formed in the adjusting valve core, the adjusting valve core is movably connected with the valve main body to enable the shunt channel to be communicated with the lower cavity through different adjusting through holes, and a user can adjust the maximum flow of the shunt channel through the adjusting valve core, so that the buffer valve can meet more different use conditions.

Description

Buffer valve

Technical Field

The utility model relates to the technical field of liquid control valves, in particular to a buffer valve.

Background

The buffer valve can change the flow speed and pressure of fluid passing through the buffer valve, and is mainly used for slowing down and adjusting the speed and impact force of moving parts, so that the stability and safety of the system are ensured.

The buffering valve is usually required to be provided with a diversion channel to achieve medium diversion, so that the effect of adjusting the medium flow speed is achieved, the maximum flow of the diversion channel of the existing buffering valve is fixed, a user cannot adjust according to actual conditions, the universality of the effect that the buffering valve can adjust the medium flow speed is relatively insufficient, and various different use conditions cannot be met.

Therefore, further improvements are needed.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art, and provides the buffer valve which can adjust the maximum flow of the diversion channel so that the buffer valve can meet more different use conditions.

The purpose of the utility model is realized in the following way:

The utility model provides a cushion valve, including the valve main part, valve main part is interior to have spool chamber and advance medium passageway and play medium passageway, spool intracavity swing joint has movable case and forms cavity down and last cavity, be equipped with the case hole on the movable case, the movable case can make the case hole align or at least partly stagger with advancing medium passageway and play medium passageway respectively with spool chamber swing joint, be equipped with the reposition of redundant personnel passageway on the valve main part, the feed end and the discharge end of reposition of redundant personnel passageway communicate with advancing medium passageway and cavity down respectively, the reposition of redundant personnel passageway is connected with the regulation case, be equipped with the regulation through-hole that a plurality of aperture is different on the regulation case, regulation case and valve main part swing joint make reposition of redundant personnel passageway and cavity down pass through different regulation through-hole intercommunication.

As a specific scheme, the axial direction of the regulating valve core is perpendicular to the axial directions of the diversion channel and the valve core cavity respectively, the regulating valve core is internally provided with a regulating cavity, regulating through holes are circumferentially distributed on the outer side of the regulating cavity, and the regulating valve core makes autorotation motion relative to the valve main body to enable different regulating through holes to rotate to positions corresponding to the diversion channel so as to enable the diversion channel to be communicated with the lower cavity.

As a specific scheme, a spring is arranged in the upper cavity, the movable valve core can compress the spring through a medium in the lower cavity and enable the valve core hole to be at least partially staggered with the medium inlet channel and the medium outlet channel respectively, and the spring can reset to enable the valve core hole to be aligned with the medium inlet channel and the medium outlet channel respectively.

As a specific scheme, a limiting step is arranged in the lower cavity, and when the valve core hole is aligned with the medium inlet channel and the medium outlet channel respectively, the lower side of the movable valve core is abutted with the limiting step.

As a specific scheme, the valve body is provided with an exhaust channel, and the upper cavity can be communicated with the outside through the exhaust channel.

As a specific scheme, the valve main body is connected with an upper nut at a position corresponding to the upper cavity, and the upper nut is fixedly connected with the valve main body through a thread structure.

As a specific scheme, the valve main body is connected with a lower nut at a position corresponding to the lower cavity, and the lower nut is fixedly connected with the valve main body through a thread structure.

As a specific scheme, sealing rings are respectively arranged at the upper section and the lower section of the movable valve core relative to the valve core hole, and are respectively matched with the movable valve core and the valve core cavity tightly.

The beneficial effects of the utility model are as follows:

The user can adjust the maximum flow of reposition of redundant personnel passageway through the adjusting valve core, makes the relief valve can satisfy more different operating modes.

Drawings

Fig. 1 is a schematic diagram illustrating a usage state according to an embodiment of the utility model.

Fig. 2 is a second schematic view of a usage state according to an embodiment of the present utility model.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1 and 2, the buffer valve comprises a valve main body 1, wherein a valve core cavity, a medium inlet channel 11 and a medium outlet channel 12 are formed in the valve main body 1, a movable valve core 2 is movably connected in the valve core cavity and forms a lower cavity 13 and an upper cavity 14, a valve core hole 21 is formed in the movable valve core 2, the movable valve core 2 can be respectively aligned with or at least partially staggered with the medium inlet channel 11 and the medium outlet channel 12 through being movably connected with the valve core cavity, a flow dividing channel 15 is formed in the valve main body 1, a feeding end and a discharging end of the flow dividing channel 15 are respectively communicated with the medium inlet channel 11 and the lower cavity 13, when the pressure of liquid is higher, the pressure of the liquid entering the lower cavity 13 from the medium inlet channel 11 through the flow dividing channel 15 is also increased, so that the movable valve core 2 is pushed to move towards the direction of the upper cavity 14, the valve core hole 21 is respectively staggered with the medium inlet channel 11 and the medium outlet channel 12 at least partially, and the flow speed of the liquid between the medium inlet channel 11 and the medium outlet channel 12 is reduced, and the buffer effect is achieved.

The shunt channel 15 is connected with the adjusting valve core 3, is equipped with the different adjusting through hole 31 of a plurality of aperture on the adjusting valve core 3, and adjusting valve core 3 and valve main part 1 swing joint make shunt channel 15 and lower cavity 13 pass through different adjusting through hole 31 intercommunication, and the user can adjust the maximum flow of shunt channel 15 through adjusting valve core 3 to adjust the liquid in the lower cavity 13 and to the maximum thrust of movable valve core 2, and then change the holistic cushioning effect of damper, make the damper can satisfy more different operating modes.

Further, the axial direction of the adjusting valve core 3 is perpendicular to the axial directions of the diversion channel 15 and the valve core cavity respectively, an adjusting cavity 32 is arranged in the adjusting valve core 3, adjusting through holes 31 are circumferentially distributed on the outer side of the adjusting cavity 32, the adjusting valve core 3 makes autorotation motion relative to the valve main body 1 to enable different adjusting through holes 31 to rotate to the position corresponding to the diversion channel 15 so that the diversion channel 15 is communicated with the lower cavity 13, and a user can change the integral buffering effect of the buffering valve by rotating the adjusting valve core 3, so that the operation is simple and convenient.

Further, the spring 4 is arranged in the upper cavity 14, the movable valve core 2 can compress the spring 4 through the medium in the lower cavity 13 and enable the valve core hole 21 to be at least partially staggered with the medium inlet channel 11 and the medium outlet channel 12 respectively, the spring 4 can reset to enable the valve core hole 21 to be aligned with the medium inlet channel 11 and the medium outlet channel 12 respectively, and the spring 4 can further play a role in automatically adjusting the position of the movable valve core 2.

Further, a limiting step 131 is arranged in the lower cavity 13, when the valve core hole 21 is aligned with the medium inlet channel 11 and the medium outlet channel 12 respectively, the lower side of the movable valve core 2 is abutted against the limiting step 131, so that the accuracy of alignment of the valve core hole 21 with the medium inlet channel 11 and the medium outlet channel 12 respectively and the working stability of the movable valve core 2 are further improved.

Further, the valve body 1 is provided with an exhaust channel 16, the upper cavity 14 can be communicated with the outside through the exhaust channel 16, and when the movable valve core 2 moves towards the upper cavity 14, gas in the upper cavity 14 can be discharged outwards through the exhaust channel 16, so that the influence of the excessive air pressure in the upper cavity 14 on the normal movement of the movable valve core 2 is avoided.

Further, an upper nut 5 is connected to the valve main body 1 at a position corresponding to the upper cavity 14, the upper nut 5 is fixedly connected with the valve main body 1 through a threaded structure, when the valve is installed, the upper nut 5 is only required to be opened and detached, then the movable valve core 2 and the spring 4 are sequentially placed into the valve core cavity, and then the upper nut 5 is installed, so that the assembly structure of the movable valve core 2, the spring 4 and the valve main body 1 is simplified.

Further, the position of the valve main body 1 corresponding to the lower cavity 13 is connected with the lower nut 6, the lower nut 6 is fixedly connected with the valve main body 1 through a threaded structure, when the movable valve core 2 and the spring 4 are required to be taken out of the valve core cavity, the upper nut 5 and the lower nut 6 are only required to be opened simultaneously, and then a tubular tool stretches into the lower cavity 13 to push the movable valve core 2 and the spring 4 out of the upper cavity 14, so that the disassembly mode of the movable valve core 2 and the spring 4 and the valve main body 1 is simplified.

Further, sealing rings 7 are respectively arranged at the upper section and the lower section of the movable valve core 2 relative to the valve core hole 21, the sealing rings 7 are respectively and tightly matched with the movable valve core 2 and the valve core cavity, the tightness between the movable valve core 2 and the valve core cavity is improved, and the chance of liquid leakage is reduced.

The above examples are only preferred embodiments of the utility model, and other embodiments of the utility model are possible. Equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these equivalent modifications or substitutions are intended to be included within the scope of the present utility model as set forth in the following claims.

Claims

1. The utility model provides a cushion valve, its characterized in that, includes valve main part (1), valve main part (1) are interior to have spool chamber and advance medium passageway (11) and play medium passageway (12), spool intracavity swing joint has movable case (2) and forms cavity (13) down and last cavity (14), be equipped with case hole (21) on movable case (2), movable case (2) can make case hole (21) align or at least partly stagger with advancing medium passageway (11) and play medium passageway (12) respectively through with spool chamber swing joint, be equipped with shunt channel (15) on valve main part (1), the feed end and the discharge end of shunt channel (15) communicate with advance medium passageway (11) and cavity (13) down respectively, shunt channel (15) are connected with adjusting valve core (3), be equipped with different regulation through-holes (31) of a plurality of aperture on adjusting valve core (3) and valve main part (1) swing joint make shunt channel (15) and lower cavity (13) pass through different regulation through-hole (31).

2. The buffer valve as claimed in claim 1, wherein the axial direction of the regulating valve core (3) is perpendicular to the axial direction of the diversion channel (15) and the valve core cavity respectively, the regulating valve core (3) is internally provided with regulating cavities (32), the regulating through holes (31) are circumferentially distributed at the outer sides of the regulating cavities (32), and the regulating valve core (3) rotates relative to the valve main body (1) to enable different regulating through holes (31) to rotate to positions corresponding to the diversion channel (15) so as to enable the diversion channel (15) to be communicated with the lower cavity (13).

3. The cushion valve according to claim 1, wherein the upper cavity (14) is internally provided with a spring (4), the movable valve core (2) can compress the spring (4) through a medium in the lower cavity (13) and enable the valve core hole (21) to be at least partially staggered with the medium inlet channel (11) and the medium outlet channel (12) respectively, and the spring (4) can reset to enable the valve core hole (21) to be aligned with the medium inlet channel (11) and the medium outlet channel (12) respectively.

4. The buffer valve according to claim 3, wherein the lower cavity (13) is internally provided with a limiting step (131), and when the valve core hole (21) is aligned with the medium inlet channel (11) and the medium outlet channel (12) respectively, the lower side of the movable valve core (2) is abutted with the limiting step (131).

5. A cushion valve according to claim 3, wherein the valve body (1) is provided with an exhaust passage (16), and the upper chamber (14) is capable of communicating with the outside through the exhaust passage (16).

6. A buffer valve according to claim 3, wherein an upper nut (5) is connected to the valve body (1) at a position corresponding to the upper cavity (14), and the upper nut (5) is fixedly connected with the valve body (1) through a threaded structure.

7. The buffer valve according to claim 6, wherein a lower nut (6) is connected to the valve body (1) at a position corresponding to the lower cavity (13), and the lower nut (6) is fixedly connected with the valve body (1) through a threaded structure.

8. The cushion valve according to any one of claims 1 to 7, wherein sealing rings (7) are respectively arranged at the upper section and the lower section of the movable valve core (2) relative to the valve core hole (21), and the sealing rings (7) are respectively matched with the movable valve core (2) and the valve core cavity tightly.