CN221003942U

CN221003942U - Low-noise one-way valve

Info

Publication number: CN221003942U
Application number: CN202322895040.4U
Authority: CN
Inventors: 吕海涛
Original assignee: Ningbo Haiwei Hydraulic Technology Co ltd
Current assignee: Ningbo Haiwei Hydraulic Technology Co ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-05-24
Anticipated expiration: 2033-10-27

Abstract

The utility model discloses a low-noise one-way valve, in particular to the technical field of one-way valves, which comprises a shell, wherein a flow guide block is fixedly arranged in the shell, one side of the flow guide block is provided with a flow guide port, a valve core is arranged in the flow guide port and used for sealing the flow guide port, and one side of the valve core is provided with a supporting component. According to the utility model, the valve core is supported by the compression spring and the damper, when liquid flows forward, the valve core is pushed out from the diversion opening, when the liquid flows backward, the valve core and the compression spring are not subjected to thrust, the valve core is inserted into the diversion opening to seal under the thrust of the compression spring and the liquid, the liquid is prevented from flowing backward, the damper can slow down the impact force of the compression spring, further, the phenomenon that the valve core is excessively impacted to contact with the diversion opening to generate noise can be avoided, after the valve is used for a long time, a user opens the cover plate, then can take out the two circular plates from the shell, and the compression spring and the damper are checked and replaced, so that the normal use of the compression spring and the damper is ensured.

Description

Low-noise one-way valve

Technical Field

The utility model relates to the technical field of check valves, in particular to a low-noise check valve.

Background

The check valve is widely applied to a hydraulic oil way or an engine oil way, is used for separating an oil way and can enable oil to pass through in one way. The check valve in the prior art is usually formed into an integrated valve body in a stamping manner, a valve cavity is formed in the valve body, and an inlet and an outlet which are communicated with the valve cavity are respectively formed at two opposite ends of the valve body. And a valve cavity of the valve body is provided with a corresponding valve core, a spring and other structures. The valve core seals the sealing port in the valve cavity in a normal state, so that oil entering the valve cavity from the inlet cannot enter an oil path downstream of the one-way valve through the sealing port. When the spool is subjected to a sufficient pressure, the spool overcomes the force of the spring and disengages the sealing port so that oil entering the valve cavity from the inlet can enter the oil path downstream of the check valve.

Currently, most check valves rely on a spring to support the movement of the valve spool. For example, the one-way valve with the prior art publication number of CN211599638U comprises a buffer valve seat movably supported in the valve body, a buffer spring seat is fixedly arranged on the valve body, and a buffer spring is arranged between the buffer valve seat and the buffer spring seat.

However, the above prior art has the following problems when in use: the valve body is opened unidirectionally by means of the movement of the valve core supported by the spring, the elasticity of the spring is reduced after the valve body is used for a long time, so that the supporting effect on the valve core can be influenced, and the valve core can collide with a sealing port to generate noise under the strong thrust of the spring and liquid, so that the use of the check valve is seriously influenced.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides the low-noise one-way valve, when liquid flows forward, the valve core is pushed out of the diversion opening through the compression spring and the damper, when the liquid flows backward, the valve core and the compression spring are not pushed by the pushing force, the valve core is inserted into the diversion opening to seal under the pushing force of the compression spring and the liquid, the liquid is prevented from flowing backward, the damper can slow down the impact force of the compression spring, further, the noise generated by the contact of the valve core with the diversion opening due to overlarge impact can be avoided, after the low-noise one-way valve is used for a long time, a user opens the cover plate, then can take out two circular plates from the shell, and check and replace the compression spring and the damper, so that the normal use of the compression spring and the damper is ensured, and the problems in the background technology are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low noise check valve, includes the casing, the inside fixed water conservancy diversion piece that is equipped with of casing, the water conservancy diversion mouth has been seted up to water conservancy diversion piece one side, the inside case that is equipped with of water conservancy diversion mouth for sealed water conservancy diversion mouth, case one side is equipped with supporting component, supporting component includes two plectates, and fixed being equipped with compression spring between two plectates, compression spring is inside runs through and is equipped with the attenuator, the attenuator both ends are fixed with two plectane inner walls respectively for reduce the noise that case and water conservancy diversion mouth collide, the opening has been seted up at the casing top, be equipped with the apron in the opening, be used for sealed opening, the inside fixed otter board that is equipped with of casing, screw hole has all been seted up on the otter board and case one side surface that is close to each other, and two plectanes are established respectively at two screw hole.

In a preferred embodiment, the outer side wall surfaces of the two circular plates are provided with threads, the two circular plates are respectively in threaded connection with the two threaded holes through the threads, and the circular plates are convenient to detach by a user in a threaded connection mode.

In a preferred embodiment, the first rubber sealing rings are fixedly embedded into the inner walls of the two threaded holes, the inner walls of the first rubber sealing rings are in contact with the outer walls of the circular plates, and the sealing performance between the circular plates and the threaded holes can be improved by using the first rubber sealing rings to prevent liquid leakage.

In a preferred embodiment, the inner wall of the diversion opening is fixedly embedded with a second rubber sealing ring, the inner wall of the second rubber sealing ring is in contact with the outer wall of the valve core, the sealing performance between the valve core and the diversion opening is greatly improved by using the second rubber sealing ring, and liquid is prevented from leaking from between the valve core and the diversion opening.

In a preferred embodiment, the inner wall of the opening is fixedly provided with four rubber sealing strips, the outer walls of the two sides of the cover plate and the outer walls of the front and rear sides of the bottom are respectively provided with sealing grooves, and the four rubber sealing strips are respectively inserted into the four sealing grooves and are used for improving the tightness between the cover plate and the inner wall of the opening.

In a preferred embodiment, the bottom of the front end of the cover plate is fixedly provided with a connecting plate, the outer wall of the front end of the shell is provided with a groove, the connecting plate is inserted into the groove, the connecting plate is fixed with the groove through a plurality of bolts, the connecting plate is fixed by the aid of the bolts, a user can detach the cover plate, and the support assembly is detached and replaced.

In a preferred embodiment, the outer wall of one side of the shell is fixedly communicated with an inlet, the outer wall of the other side of the shell is fixedly communicated with an outlet, and the outer wall of the front end of the shell is provided with a direction mark, so that a user can conveniently distinguish the forward direction of the shell.

The utility model has the technical effects and advantages that:

According to the utility model, the valve core is supported by the compression spring and the damper, when liquid flows forward, the valve core is pushed out from the diversion opening, when the liquid flows backward, the valve core and the compression spring are not subjected to thrust, the valve core is inserted into the diversion opening to seal under the thrust of the compression spring and the liquid, the liquid is prevented from flowing backward, the damper can slow down the impact force of the compression spring, further, the phenomenon that the valve core is excessively impacted to contact with the diversion opening to generate noise can be avoided, after the valve is used for a long time, a user opens the cover plate, then can take out the two circular plates from the shell, and the compression spring and the damper are checked and replaced, so that the normal use of the compression spring and the damper is ensured.

Drawings

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

FIG. 2 is a schematic diagram showing the cover plate turning open of the present utility model;

FIG. 3 is a cross-sectional view of the housing of the present utility model;

FIG. 4 is a cross-sectional view of a screen of the present utility model;

Fig. 5 is a structural view of the support assembly of the present utility model.

The reference numerals are: 1. a housing; 2. a flow guiding block; 3. a diversion port; 4. a valve core; 5. a support assembly; 6. an opening; 7. a cover plate; 8. a screen plate; 9. a threaded hole; 10. a first rubber seal ring; 11. a second rubber seal ring; 12. a rubber sealing strip; 13. sealing grooves; 14. a connecting plate; 15. a groove; 16. a bolt; 17. an inlet; 18. an outlet;

501. a circular plate; 502. a compression spring; 503. a damper.

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 the accompanying drawings 1-5 of the specification, the utility model provides a low-noise one-way valve, which comprises a shell 1, wherein an inlet 17 is fixedly communicated with the outer wall of one side of the shell 1, an outlet 18 is fixedly communicated with the outer wall of the other side of the shell 1, a direction mark is processed on the outer wall of the front end of the shell 1, a flow guide block 2 is fixedly arranged in the shell 1, a flow guide opening 3 is formed in one side of the flow guide block 2, and a valve core 4 is arranged in the flow guide opening 3 and used for sealing the flow guide opening 3;

The valve core 4 is provided with a supporting component 5 on one side, the supporting component 5 comprises two circular plates 501, a compression spring 502 is fixedly arranged between the two circular plates 501, a damper 503 is arranged in the compression spring 502 in a penetrating manner, two ends of the damper 503 are respectively fixed with the inner walls of the two circular plates 501, and the damping component is used for reducing the noise of collision between the valve core 4 and the diversion port 3;

For conveniently dismantling the plectane 501, offered opening 6 at casing 1 top, be equipped with apron 7 in the opening 6 for sealed opening 6, the inside fixed otter board 8 that is equipped with of casing 1, otter board 8 and case 4 are close to one side surface each other and all are offered screw hole 9, and two plectane 501 are established respectively at two screw holes 9, and two plectane 501 lateral wall surfaces all process the screw thread, and two plectane 501 pass through the screw thread respectively with two screw hole 9 threaded connection, convenient to detach plectane 501.

Through setting up guide block 2 in casing 1 and water conservancy diversion, when liquid flows in casing 1 from import 17, case 4 receives the impact of liquid and shifts out from water conservancy diversion mouth 3 in, and squeeze compression spring 502, when liquid backward flow, case 4 and compression spring 502 do not receive the thrust, and case 4 is sealed in inserting water conservancy diversion mouth 3 under compression spring 502's thrust and liquid thrust, prevent that the liquid from flowing backward, and the setting of attenuator 503 can alleviate compression spring 502's impact, can effectively avoid case 4 to strike too big and the contact of water conservancy diversion mouth 3 produces the noise, after long-term use, the user can open apron 7 earlier, then twist two plectanes 501 and twist out from two screw holes 9 respectively, with compression spring 502 and attenuator 503 follow casing 1 in the dismantlement check change, thereby ensure compression spring 502 and attenuator 503's normal use.

Referring to fig. 1-5 of the specification, the utility model provides a low-noise one-way valve, wherein the inner walls of two threaded holes 9 are fixedly embedded with first rubber sealing rings 10, the inner wall of each first rubber sealing ring 10 is in contact with the outer wall of a circular plate 501 for improving the tightness between the circular plate 501 and the threaded hole 9, the inner wall of a diversion port 3 is fixedly embedded with a second rubber sealing ring 11, and the inner wall of each second rubber sealing ring 11 is in contact with the outer wall of a valve core 4 for improving the tightness between the valve core 4 and the diversion port 3;

And the opening 6 inner wall is fixed and is equipped with four rubber sealing strips 12, sealing grooves 13 have all been seted up to apron 7 both sides outer wall and bottom front and back both sides outer wall, and four rubber sealing strips 12 insert respectively in four sealing grooves 13 for improve the leakproofness between apron 7 and the opening 6 inner wall, apron 7 front end bottom is fixed and is equipped with connecting plate 14, recess 15 has been seted up to casing 1 front end outer wall, connecting plate 14 inserts in recess 15, and is fixed through a plurality of bolts 16 between connecting plate 14 and the recess 15, convenient to detach apron 7.

Through all being provided with first rubber seal 10 on two screw hole 9 inner walls, circular plate 501 and first rubber seal 10 contact can improve the leakproofness between circular plate 501 and the screw hole 9, set up second rubber seal 11 on water conservancy diversion mouth 3 inner wall, second rubber seal 11 not only can improve the leakproofness between case 4 and the water conservancy diversion mouth 3, second rubber seal 11 has elasticity, can also cushion the impact force of case 4, further play the effect of noise reduction, set up four rubber seal 12 on opening 6 inner wall, utilize rubber seal 12 to peg graft with seal groove 13 on the apron 7, can avoid liquid to spill from the gap between apron 7 and the opening 6.

Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. A low noise check valve, includes casing (1), its characterized in that: the novel water heater is characterized in that a flow guide block (2) is fixedly arranged in the shell (1), a flow guide opening (3) is formed in one side of the flow guide block (2), a valve core (4) is arranged in the flow guide opening (3) and used for sealing the flow guide opening (3), and a supporting component (5) is arranged on one side of the valve core (4);

The supporting assembly (5) comprises two circular plates (501), a compression spring (502) is fixedly arranged between the two circular plates (501), a damper (503) is arranged inside the compression spring (502) in a penetrating mode, two ends of the damper (503) are respectively fixed with the inner walls of the two circular plates (501) and used for reducing noise of collision between the valve core (4) and the diversion opening (3), an opening (6) is formed in the top of the shell (1), and a cover plate (7) is arranged in the opening (6) and used for sealing the opening (6);

The novel valve is characterized in that a screen plate (8) is fixedly arranged inside the shell (1), threaded holes (9) are formed in the surfaces, close to one side, of the screen plate (8) and the valve core (4), and two circular plates (501) are respectively arranged in the two threaded holes (9).

2. A low noise check valve according to claim 1, wherein: threads are machined on the surfaces of the outer side walls of the two circular plates (501), the two circular plates (501) are respectively in threaded connection with the two threaded holes (9) through the threads, and the circular plates (501) are convenient to detach.

3. A low noise check valve according to claim 1, wherein: the inner walls of the two threaded holes (9) are fixedly embedded with first rubber sealing rings (10), and the inner walls of the first rubber sealing rings (10) are in contact with the outer wall of the circular plate (501) and are used for improving the tightness between the circular plate (501) and the threaded holes (9).

4. A low noise check valve according to claim 1, wherein: the second rubber sealing ring (11) is fixedly embedded into the inner wall of the diversion opening (3), and the inner wall of the second rubber sealing ring (11) is in contact with the outer wall of the valve core (4) and is used for improving the tightness between the valve core (4) and the diversion opening (3).

5. A low noise check valve according to claim 1, wherein: the sealing device is characterized in that four rubber sealing strips (12) are fixedly arranged on the inner wall of the opening (6), sealing grooves (13) are respectively formed in the outer walls of the two sides of the cover plate (7) and the outer walls of the front side and the rear side of the bottom, and the four rubber sealing strips (12) are respectively inserted into the four sealing grooves (13) and used for improving the tightness between the cover plate (7) and the inner wall of the opening (6).

6. A low noise check valve according to claim 1, wherein: the novel cover plate is characterized in that a connecting plate (14) is fixedly arranged at the bottom of the front end of the cover plate (7), a groove (15) is formed in the outer wall of the front end of the shell (1), the connecting plate (14) is inserted into the groove (15), the connecting plate (14) is fixed with the groove (15) through a plurality of bolts (16), and the cover plate (7) is convenient to detach.

7. A low noise check valve according to claim 1, wherein: the outer wall of one side of the shell (1) is fixedly communicated with an inlet (17), the outer wall of the other side of the shell (1) is fixedly communicated with an outlet (18), and the outer wall of the front end of the shell (1) is provided with a direction mark.