CN220956251U

CN220956251U - Pressure-adjustable hydraulic one-way valve

Info

Publication number: CN220956251U
Application number: CN202323059842.8U
Authority: CN
Inventors: 吴水祥
Original assignee: Shaoxing Jingsheng Hydraulic Parts Co ltd
Current assignee: Shaoxing Jingsheng Hydraulic Parts Co ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-05-14
Anticipated expiration: 2033-11-13

Abstract

The utility model relates to the technical field of hydraulic valves and discloses a pressure-adjustable hydraulic one-way valve, which comprises a valve body, wherein the bottom of the valve body is provided with a valve seat, one end of the valve body is provided with a flow inlet pipe, the other end of the valve body is provided with a flow outlet pipe, the top of the valve body is provided with a flow limiting pipe, the inside of the valve body is provided with a flow stopping plate, the top of the flow limiting pipe is provided with a mounting pipe, the upper end of the mounting pipe is provided with a control spanner, the lower end of the inside of the flow limiting pipe is provided with a movable plate, the upper end of the inside of the mounting pipe is provided with a linkage plate, the inside of the linkage plate is provided with a threaded rod, and the top of the linkage plate is provided with a control spanner.

Description

Pressure-adjustable hydraulic one-way valve

Technical Field

The utility model relates to the technical field of hydraulic valves, in particular to a hydraulic one-way valve capable of adjusting pressure.

Background

One-way valves are also known as check valves or non-return valves. For preventing reverse flow of oil flow in hydraulic systems or compressed air in pneumatic systems. The one-way valve has two types, namely a straight-through type valve and a right-angle type valve. The straight-through one-way valve is installed on the pipeline in a threaded connection mode. The right-angle one-way valve has three forms of threaded connection, plate connection and flange connection. The hydraulic control check valve is also called a latching valve or a pressure maintaining valve, and is the same as the check valve and is used for preventing the oil from flowing reversely. However, when the oil flow in the hydraulic circuit is required to flow reversely, the control oil pressure can be used to open the one-way valve, so that the oil flow can flow in both directions. The hydraulic control check valve adopts a conical valve core, so that the sealing performance is good. When the oil way is required to be closed, the valve can be used as one-way locking of the oil way to play a role in pressure maintaining.

The existing adjustable pressure hydraulic check valve has the problems of complexity and difficult operation in the adjustment process, the structure is complex, fine adjustment and operation are needed, difficulty and learning cost of a user are increased, meanwhile, due to the complex structure and design, the manufacturing cost is high, the price is high, in addition, when overhauling or maintenance is needed, more time and energy are needed for operation due to the complexity, the trouble and cost of maintenance are increased, due to the difficulty of adjustment and maintenance, the efficiency of the existing adjustable pressure hydraulic check valve is also affected to a certain extent, and efficient pressure adjustment and system control cannot be achieved.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the hydraulic one-way valve with adjustable pressure, which solves the problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an adjustable pressure hydraulic pressure check valve, includes the valve body, the bottom of valve body is equipped with the disk seat, the one end of valve body is equipped with into the flow tube, the other end of valve body is equipped with the outlet pipe, the top fixedly connected with flow limiting pipe of valve body, the inside of valve body is equipped with the flow stopping board, the top fixedly connected with installation tube of flow limiting pipe, the upper end of installation tube is equipped with the control spanner, the inside lower extreme of flow limiting pipe is equipped with the fly leaf, the inside upper end of flow limiting pipe is equipped with the fixed plate, the inside upper end of installation tube is equipped with the linkage board, the inside of linkage board is equipped with the threaded rod, the top of linkage board is equipped with the control spanner.

Preferably, the bottom of the valve body is fixedly connected with the top of the valve seat, one end of the valve body is fixedly connected with the inflow pipe, the other end of the valve body is fixedly connected with the outflow pipe, and the diameter of the outflow pipe is smaller than that of the inflow pipe.

Preferably, the outside fixed connection of flow stopping board just is close to the setting of outlet pipe on the inner wall of valve body, and the top of flow stopping board upwards extends to the flow-limiting pipe inside to the top of flow stopping board is in the same place with the laminating of movable plate's bottom.

Preferably, the outside of fly leaf and the inner wall sliding connection of current-limiting pipe are in the same place, and the outside of fixed plate is in the same place with the inner wall fixed connection of current-limiting pipe, and the round hole has been seted up to the inside of fixed plate, and linkage plate and the inner wall sliding connection of installation tube are in the same place, and the peripheral fixedly connected with dead lever in top of fly leaf, the top of dead lever extends and runs through the fixed plate to linkage plate upper end, and the dead lever is in the same place with fixed plate and linkage plate sliding connection respectively.

Preferably, the top center of fly leaf is in the same place with the bottom fixed connection of threaded rod, and the top of threaded rod extends to the linkage inboard and is in the same place with its threaded connection, and the top of threaded rod is in the same place with the bottom fixed connection of control spanner, and the outside of threaded rod is provided with the spring, and the top of spring is in the same place with the bottom fixed connection of linkage board, the bottom of spring is in the same place with the top fixed connection of fly leaf.

(III) beneficial effects

Compared with the prior art, the utility model provides the hydraulic one-way valve with adjustable pressure, which has the following beneficial effects:

This adjustable pressure hydraulic check valve, when needs increase pressure, clockwise rotation control spanner, control spanner drives threaded rod clockwise rotation, through linkage plate and threaded rod's screw thread relation, and the spacing of dead lever, make control spanner when clockwise rotation, the linkage plate descends, extrude the spring when the linkage plate descends, make the spring increase elasticity, spring after increasing elasticity extrudees the fly leaf and increases pressure between valve body and the flow stopping board, when needs reduce pressure, anticlockwise rotation control spanner, control spanner drives the threaded rod anticlockwise rotation, then drive the linkage plate and rise, stop extrudeing the spring, make the elasticity of spring reduce, make it reduce pressure to the fly leaf, thereby reduce pressure, adjustable pressure hydraulic check valve after optimizing is simpler in design, the adjustment process is more directly perceived, the user can more easily carry out pressure adjustment operation, the degree of difficulty of learning and use has been reduced, and the adjustable pressure hydraulic check valve after the improvement is simpler and more convenient in maintenance and maintenance process, time and energy and maintenance need be reduced, maintenance cost and trouble have been reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of an exploded structure of the present utility model.

In the figure: 1. a valve body; 2. a valve seat; 3. a flow inlet pipe; 4. a outflow pipe; 5. a flow limiting pipe; 6. installing a pipe; 7. a flow stop plate; 8. controlling a spanner; 9. a linkage plate; 10. a fixing plate; 11. a movable plate; 12. a spring; 13. a threaded rod; 14. and a fixing rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an adjustable pressure hydraulic one-way valve comprises a valve body 1, a valve seat 2 is arranged at the bottom of the valve body 1, a flow inlet pipe 3 is arranged at one end of the valve body 1, a flow outlet pipe 4 is arranged at the other end of the valve body 1, a flow limiting pipe 5 is fixedly connected to the top of the valve body 1, a flow stopping plate 7 is arranged in the valve body 1, a mounting pipe 6 is fixedly connected to the top of the flow limiting pipe 5, a control spanner 8 is arranged at the upper end of the mounting pipe 6, a movable plate 11 is arranged at the lower end of the inner part of the flow limiting pipe 5, a fixed plate 10 is arranged at the upper end of the inner part of the flow limiting pipe 5, a linkage plate 9 is arranged in the linkage plate 9, a control spanner 8 is arranged at the top of the linkage plate 9, the optimized adjustable pressure hydraulic one-way valve is simpler in design, the adjusting process is more visual, a user can easily perform pressure adjusting operation, learning and using difficulties are reduced, the improved adjustable pressure hydraulic one-way valve is simpler and more convenient in maintenance and overhaul processes, maintenance cost and effort are reduced, and maintenance cost and trouble are reduced.

Further, the bottom of the valve body 1 is fixedly connected with the top of the valve seat 2, one end of the valve body 1 is fixedly connected with the inflow pipe 3, the other end of the valve body 1 is fixedly connected with the outflow pipe 4, and the diameter of the outflow pipe 4 is smaller than that of the inflow pipe 3, so that the device is convenient to use.

Further, the outside fixed connection of stagnant flow board 7 is on the inner wall of valve body 1, and is close to the setting of outlet pipe 4, and the top of stagnant flow board 7 upwards extends to the restriction pipe 5 inside, and the top of stagnant flow board 7 is in the same place with the laminating of the bottom of fly leaf 11, blocks hydraulic oil, produces pressure, when using, the bottom of fly leaf 11 and the top contact of stagnant flow board 7 block hydraulic pressure, when hydraulic pressure is too big, hydraulic pressure extrudes fly leaf 11, then gets into outlet pipe 4 through the bottom of restriction pipe 5 and discharges.

Further, the outside of fly leaf 11 is in the same place with the inner wall sliding connection of flow restriction pipe 5, the outside of fly leaf 10 is in the same place with the inner wall fixed connection of flow restriction pipe 5, the round hole has been seted up to the inside of fly leaf 10, linkage plate 9 is in the same place with the inner wall sliding connection of installation pipe 6, the top periphery fixedly connected with dead lever 14 of fly leaf 11, the top of dead lever 14 extends and runs through dead plate 10 to the fly leaf 9 upper end, dead lever 14 is in the same place with dead plate 10 and linkage plate 9 sliding connection respectively, when needs increase pressure, clockwise rotation control spanner 8, control spanner 8 drives threaded rod 13 clockwise rotation, through the screw thread relation of linkage plate 9 and threaded rod 13, and the spacing of dead lever 14, make control spanner 8 when clockwise rotation, linkage plate 9 descends, extrude spring 12 when linkage plate 9 descends, make spring 12 increase elasticity, spring 12 extrudeed between valve body 1 and the fly leaf 7, when needs to reduce pressure, anticlockwise rotation control spanner 8 drives threaded rod 13, then drive the anticlockwise rotation control spanner 9, drive spring 12, thereby reduce spring 12, make it reduce spring 11 and compress.

Further, the top center of the movable plate 11 is fixedly connected with the bottom of the threaded rod 13, the top of the threaded rod 13 extends into the linkage plate 9 and is in threaded connection with the threaded rod, the top of the threaded rod 13 is fixedly connected with the bottom of the control wrench 8, a spring 12 is arranged outside the threaded rod 13, the top of the spring 12 is fixedly connected with the bottom of the linkage plate 9, and the bottom of the spring 12 is fixedly connected with the top of the movable plate 11.

Working principle: when the hydraulic check valve is used, the bottom of the movable plate 11 is in contact with the top of the flow stopping plate 7 to block hydraulic pressure, when the hydraulic pressure is overlarge, the hydraulic pressure extrudes the movable plate 11, then enters the flow outlet pipe 4 through the bottom of the flow limiting pipe 5 to be discharged, then the pressure is regulated according to needs, when the pressure needs to be increased, the control spanner 8 is rotated clockwise, the control spanner 8 drives the threaded rod 13 to rotate clockwise, through the threaded relation of the linkage plate 9 and the threaded rod 13 and the limit of the fixed rod 14, the control spanner 8 is enabled to descend when rotating clockwise, the spring 12 is extruded when the linkage plate 9 descends, the spring 12 is enabled to increase the elastic force, the spring 12 after the elastic force is increased extrudes the movable plate 11 to increase the pressure between the valve body 1 and the flow stopping plate 7, when the pressure needs to be reduced, the control spanner 8 is driven by anticlockwise to rotate 13, then the linkage plate 9 is driven to ascend, the spring 12 is stopped to extrude, the elastic force of the spring 12 is enabled to reduce the pressure of the movable plate 11, accordingly the pressure is reduced, the pressure of the optimized adjustable pressure check valve is enabled to be more simple, the design of the user can regulate the pressure check valve more easily, the hydraulic check valve is easier to adjust the pressure, the hydraulic check valve is easier to repair and convenient and maintenance is easier to adjust the hydraulic check valve, maintenance and maintenance process is easier to use, maintenance and maintenance, and maintenance is easy, and maintenance is convenient to reduce maintenance.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an adjustable pressure hydraulic pressure check valve, includes valve body (1), its characterized in that: the bottom of valve body (1) is equipped with disk seat (2), the one end of valve body (1) is equipped with into flow tube (3), the other end of valve body (1) is equipped with out flow tube (4), the top fixedly connected with flow limiting tube (5) of valve body (1), the inside of valve body (1) is equipped with flow stopping plate (7), the top fixedly connected with installation pipe (6) of flow limiting tube (5), the upper end of installation pipe (6) is equipped with control spanner (8), the inside lower extreme of flow limiting tube (5) is equipped with fly leaf (11), the inside upper end of flow limiting tube (5) is equipped with fixed plate (10), the inside upper end of installation pipe (6) is equipped with linkage board (9), the inside of linkage board (9) is equipped with threaded rod (13), the top of linkage board (9) is equipped with control spanner (8).

2. The adjustable pressure hydraulic check valve of claim 1, wherein: the bottom of valve body (1) is in the same place with the top fixed connection of disk seat (2), and the one end of valve body (1) is in the same place with inflow pipe (3) fixed connection, and the other end of valve body (1) is in the same place with outlet pipe (4) fixed connection, and the diameter of outlet pipe (4) is less than inflow pipe (3).

3. The adjustable pressure hydraulic check valve of claim 1, wherein: the outside fixed connection of flow stopping board (7) on the inner wall of valve body (1), and be close to outlet pipe (4) setting, the top of flow stopping board (7) upwards extends to flow-limiting pipe (5) inside to the top of flow stopping board (7) is in the same place with the laminating of the bottom of fly leaf (11).

4. The adjustable pressure hydraulic check valve of claim 1, wherein: the outside of fly leaf (11) is in the same place with the inner wall sliding connection of flow-limiting tube (5), the outside of fixed plate (10) is in the same place with the inner wall fixed connection of flow-limiting tube (5), the round hole has been seted up to the inside of fixed plate (10), linkage board (9) are in the same place with the inner wall sliding connection of installation pipe (6), the top peripheral fixedly connected with dead lever (14) of fly leaf (11), the top of dead lever (14) extends and runs through fixed plate (10) to linkage board (9) upper end, dead lever (14) respectively with fixed plate (10) and linkage board (9) sliding connection together.

5. The adjustable pressure hydraulic check valve of claim 4, wherein: the top center of fly leaf (11) is in the same place with the bottom fixed connection of threaded rod (13), and the top of threaded rod (13) extends to linkage board (9) inside and be in the same place with its threaded connection, and the top of threaded rod (13) is in the same place with the bottom fixed connection of control spanner (8), and the outside of threaded rod (13) is provided with spring (12), and the top of spring (12) is in the same place with the bottom fixed connection of linkage board (9), the bottom of spring (12) is in the same place with the top fixed connection of fly leaf (11).