CN217003257U

CN217003257U - Check valve capable of running stably

Info

Publication number: CN217003257U
Application number: CN202220839662.8U
Authority: CN
Inventors: 方丹华
Original assignee: Zhejiang Huifeng Valve Co ltd
Current assignee: Zhejiang Huifeng Valve Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-07-19
Anticipated expiration: 2032-04-12

Abstract

The utility model provides a check valve capable of running stably, and belongs to the technical field of check valves. It has solved the trouble and the unstable problem of fluid operation of check valve change maintenance. This check valve of even running, including the valve body that has the valve pocket and set up the non return unit in the valve body, and the both ends of valve body are provided with water inlet and delivery port respectively, and the valve body is located and has seted up the assembly mouth on the periphery wall of upper end, and this assembly mouth is the slope setting, and the non return unit comprises assembly shell one, valve clack, sealed lid one and the conflict spring that has assembly chamber one, and assembly shell one sets up in the assembly mouth and rather than looks sliding fit, sealed lid one set up in the valve body is located on the inner wall of assembly mouth department, and assembly shell one is located and has seted up the liquid mouth on the periphery wall that is close to delivery port department, and assembly shell one is located liquid mouth department and is provided with the filter unit, and the valve body is located and is provided with the buffer unit on the inner wall of delivery port department. The utility model has the advantages of simple maintenance and replacement and stable fluid operation.

Description

Check valve capable of running stably

Technical Field

The utility model belongs to the technical field of check valves, and relates to a check valve capable of running stably.

Background

The check valve is a valve that the opening and closing piece is a circular valve clack and generates action by self weight and medium pressure to block medium backflow, when liquid is conveyed, impurities cannot be contained in the liquid, a filter screen is generally arranged in the check valve in order to filter the impurities, the existing check valve has the defects that a check unit and the filter screen in the valve body are damaged and are inconvenient to replace in the actual operation process, so that subsequent use is influenced, meanwhile, the valve of the check valve is opened and closed through pressure difference control, the internal flow rate and hydraulic pressure are relatively large, and the service life of parts is easily influenced.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a check valve which is convenient to maintain and replace and runs stably.

The purpose of the utility model can be realized by the following technical scheme: a check valve which runs stably comprises a valve body with a valve cavity and a check unit arranged in the valve body, wherein a water inlet and a water outlet are respectively arranged at two ends of the valve body, the check valve is characterized in that an assembly opening convenient for installing the check unit is formed in the peripheral wall of the upper end of the valve body, the assembly opening is arranged in an inclined manner, the inner end of the assembly opening extends to the inner wall of the valve body along the axis of the assembly opening and forms a contact groove convenient for the contact installation of the check unit, the check unit consists of an assembly shell I with an assembly cavity I, a valve clack, a sealing cover I and a contact spring, the assembly shell I is arranged in the assembly opening and is in sliding fit with the assembly shell I, the sealing cover I is arranged on the inner wall of the assembly opening and is connected with the assembly opening, the position of the assembly shell I is limited by the sealing cover I, the valve clack is arranged in the assembly shell I and is in sliding fit with the assembly shell I, the assembly shell is characterized in that the first abutting spring is also arranged in the first assembly shell, two ends of the abutting spring are respectively abutted to the valve clack and the sealing cover, the valve clack is abutted to the inner wall of the valve body through the abutting spring, the first assembly shell is located on the peripheral wall close to the water outlet and is provided with a liquid outlet, the first assembly shell is located at the liquid outlet and is provided with a filtering unit which is fixedly connected with the first assembly shell and is used for filtering impurities, and the valve body is located on the inner wall of the water outlet and is provided with a buffering unit which is fixedly connected with the first assembly shell and is used for slowing down the flow velocity.

In the check valve capable of running stably, an anti-abrasion ring which reduces abrasion and strengthens the sealing performance of a connecting part is arranged between the inner end of the first assembling shell and the valve body, the position of the valve clack is limited by the anti-abrasion ring, and the inner wall of the anti-abrasion ring is obliquely arranged.

In foretell one kind of even running's check valve, the valve body be located and be provided with on the outer wall of assembly opening department and extend along assembly opening axis direction and be convenient for the extension arch of the assembly of a sealed lid, sealed lid one with extend the arch and be connected through screw-thread fit, sealed lid one and extend and be provided with the sealing washer of strengthening the leakproofness between the arch, the sealing washer with the inconsistent terminal surface of conflict spring be provided with the outside arch of axial and prevent the spacing arch of conflict spring skew.

In the above-mentioned check valve of even running, the valve clack offer the mounting groove that supplies conflict spring embedding installation with the inconsistent terminal surface of conflict spring.

In foretell smooth operation's check valve, assembly shell one in cross the liquid mouth and be the slope setting, the filter unit by have assembly second of assembly chamber two and set up in assembly second and rather than the filter screen constitution that links firmly mutually, the inner of assembly second stretch into in the liquid mouth that crosses of assembly shell one, the outer end of assembly second outwards extend and run through along the axis of crossing the liquid mouth and wear out outside the valve body, assembly second be located the periphery wall of water outlet department and seted up the intercommunication mouth that a plurality of messenger assembly chamber two was linked together with the delivery port, the outer end of assembly second be provided with be convenient for change the filter screen and guarantee the sealed lid two of junction leakproofness.

In foretell stationary operation's check valve, the buffer unit constitute by a plurality of buffer board, a plurality of the buffer hole that a plurality of set up along its circumferencial direction interval is seted up to the buffer board, the buffer hole in the above-mentioned adjacent buffer board is crisscross the setting.

Compared with the prior art, this steady operation's check valve has following advantage:

1. the valve body is located and is offered the assembly mouth of being convenient for non return unit installation on the periphery wall of upper end, the non return unit is by having the assembly shell one that is linked together assembly chamber one with the water inlet, the valve clack, sealed lid one and conflict spring constitution, assembly shell one is located and offers the liquid mouth of crossing that makes assembly chamber one be linked together with the delivery port on the periphery wall near delivery port department, assembly shell one is located liquid mouth department and is provided with rather than linking firmly and being used for filtering impurity's filter unit mutually, the valve body is located and is provided with rather than linking firmly and being used for slowing down the buffer unit of velocity of flow on the inner wall of delivery port department, the setting of above-mentioned structure, the whole maintenance of the check valve of being convenient for is changed, and slow down the internal velocity of flow of valve, guarantee simultaneously that its operation is in steady state.

Drawings

Fig. 1 is a schematic cross-sectional view of the present soft running check valve.

In the figure, 1, a valve body; 2. an assembly port; 3. assembling a shell I; 4. a valve flap; 5. a first sealing cover; 6. against the spring; 7. a liquid passing port; 8. an anti-abrasion ring; 9. an extension projection; 10. a limiting bulge; 11. mounting grooves; 12. assembling a second shell; 13. a filter screen; 14. a communication port; 15. a second sealing cover; 16. a buffer plate; 17. and a buffer hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in figure 1, the stably operating check valve comprises a valve body with a valve cavity and a check unit arranged in the valve body, wherein a water inlet and a water outlet which are communicated with the valve cavity are respectively arranged at two ends of the valve body, an assembly port which is convenient for installing the check unit and enables the valve cavity to be communicated with the outside of the valve body is arranged on the outer peripheral wall at the upper end of the valve body, the assembly port is obliquely arranged, the inner end of the assembly port extends to the inner wall of the valve body along the axis of the assembly port and is intersected with the inner wall of the valve body to form an abutting groove structure which is convenient for abutting installation of the check unit, the check unit comprises an assembly shell I, a valve clack, a sealing cover I and an abutting spring, the assembly shell I is arranged in the assembly port and is in sliding fit with the assembly port, the sealing cover I is arranged on the inner wall of the valve body at the assembly port and is connected with the inner wall of the valve body, and the position of the assembly shell I is limited by the sealing cover I, the valve clack is arranged in and is in sliding fit with the assembly shell I, the abutting spring is also arranged in the assembly shell I, two ends of the abutting spring are respectively abutted against the valve clack and the sealing cover I, the valve clack is abutted against the abutting groove structure at the inner wall of the valve body through the abutting spring, the peripheral wall of the assembly shell I, which is positioned close to the water outlet, is provided with a liquid passing port which enables the assembly cavity I to be communicated with the water outlet, the assembly shell I, which is positioned at the liquid passing port, is provided with a filtering unit which is fixedly connected with the assembly shell I and is used for filtering impurities, the inner wall of the valve body, which is positioned at the water outlet, is provided with a buffering unit which is fixedly connected with the valve body and is used for slowing down the flow speed, the liquid passing port in the assembly shell I is obliquely arranged, the filtering unit is composed of an assembly shell II with the assembly cavity II and a filtering net which is arranged in the assembly shell II and is fixedly connected with the assembly cavity I through the liquid passing port, the inner end of the assembly shell II extends into the liquid passing port in the assembly shell I, the assembly shell II is connected with the liquid passing port in a sliding mode or in a threaded mode, the outer end of the assembly shell II extends outwards along the axis of the liquid passing port and penetrates out of the valve body in a penetrating mode, an extending port for the assembly shell II to extend out in an inclined mode is formed in the valve body, the extending port is arranged in an inclined mode, a plurality of communicating ports enabling the assembly cavity II to be communicated with the water outlet are formed in the outer peripheral wall, located at the water outlet, of the assembly shell II, a sealing cover II convenient to replace a filter screen and guaranteeing the sealing performance of the connecting portion is arranged at the outer end of the assembly shell II, a sealing ring for strengthening the sealing performance is arranged between the sealing cover II and the assembly shell II, the buffering unit is composed of a plurality of buffering plates, the buffering plates are provided with a plurality of buffering holes arranged at intervals along the circumferential direction of the buffering plates, and the buffering holes in the adjacent buffering plates are arranged in a staggered mode.

Further saying in detail, in order to reduce the assembly wearing and tearing, guarantee the leakproofness of junction simultaneously, be provided with the abrasionproof ring that reduces wearing and tearing and strengthen the leakproofness of junction between the inner of assembly shell one and the valve body, and through the position of this abrasionproof ring restriction valve clack, the inner wall of abrasionproof ring is the slope setting, and the internal diameter of abrasionproof ring is less than the external diameter of valve clack, and is greater than the internal diameter of assembly shell one, is provided with the sealing washer between abrasionproof ring and the assembly shell one, abrasionproof ring with the valve body inner wall is along assembly mouthful axial direction endwise slip, and the abrasionproof ring sets up in the valve body and is located conflict groove structure department.

Further carefully say, in order to prevent conflict spring dislocation, the valve body is located and is provided with the extension arch that extends and be convenient for a sealed lid assembly along assembly mouth axis direction on the outer wall of assembly mouth department, sealed lid one with extend the arch and be connected through screw-thread fit, sealed lid one with extend and be provided with the sealing washer of strengthening the leakproofness between the arch, the sealing washer with the inconsistent terminal surface of conflict spring be provided with the outside arch of axial and prevent the spacing arch of conflict spring skew, sealed lid one and assembly shell also are provided with the sealing washer between one, set up the mounting groove that supplies conflict spring embedding installation on the valve clack and the inconsistent terminal surface of conflict spring, the internal diameter of assembly groove is the same with the external diameter of conflict spring.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The check valve capable of running stably comprises a valve body (1) with a valve cavity and a check unit arranged in the valve body (1), wherein a water inlet and a water outlet are respectively formed in two ends of the valve body (1), the check valve is characterized in that the valve body (1) is positioned on the outer peripheral wall of the upper end and is provided with an assembly port (2) convenient for installation of the check unit, the assembly port (2) is arranged in an inclined manner, the inner end of the assembly port (2) extends to the inner wall of the valve body (1) along the axis of the assembly port and forms an abutting groove convenient for abutting installation of the check unit, the check unit comprises an assembly shell (3) with an assembly cavity I, a valve clack (4), a sealing cover (5) and an abutting spring (6), the assembly shell (3) is arranged in the assembly port (2) and is in sliding fit with the assembly port, the sealing cover (5) is arranged on the inner wall of the valve body (1) positioned at the assembly port (2), the valve is connected with the valve body, the position of the assembly shell I (3) is limited through the sealing cover I (5), the valve clack (4) is arranged in the assembly shell I (3) and is in sliding fit with the assembly shell I (3), the abutting spring (6) is also arranged in the assembly shell I (3), two ends of the abutting spring (6) are respectively abutted against the valve clack (4) and the sealing cover I (5), the valve clack (4) is abutted against the inner wall of the valve body (1) through the abutting spring (6), a liquid passing port (7) is formed in the peripheral wall, close to the water outlet, of the assembly shell I (3), a filtering unit which is fixedly connected with the liquid passing port (7) and is used for filtering impurities is arranged at the position of the liquid passing port, and a buffering unit which is fixedly connected with the valve body (1) and is used for slowing down the flow speed is arranged on the inner wall, located at the water outlet, of the valve body (1).

2. A smooth running non-return valve according to claim 1, characterized in that an anti-wear ring (8) for reducing wear and enhancing the sealing performance of the joint is arranged between the inner end of the first assembling shell (3) and the valve body (1), and the position of the valve flap (4) is limited by the anti-wear ring (8), and the inner wall of the anti-wear ring (8) is inclined.

3. The check valve with the stable operation as claimed in claim 1, wherein the outer wall of the valve body (1) at the assembly port (2) is provided with an extending protrusion (9) which extends along the axial direction of the assembly port (2) and is convenient for the assembly of the first sealing cover (5), the first sealing cover (5) is connected with the extending protrusion (9) in a threaded fit manner, a sealing ring for enhancing the sealing property is arranged between the first sealing cover (5) and the extending protrusion (9), and the end face of the sealing ring, which is in contact with the contact spring (6), is provided with a limiting protrusion (10) which protrudes outwards in the axial direction and prevents the contact spring (6) from deviating.

4. The smooth running check valve of claim 1, characterized in that the end surface of the valve flap (4) against the resisting spring (6) is provided with a mounting groove (11) for the embedding and installation of the resisting spring (6).

5. A smooth running non-return valve according to claim 1, characterized in that the liquid through-opening (7) in the first fitting housing (3) is arranged obliquely, the filtering unit consists of a second assembling shell (12) with a second assembling cavity and a filtering net (13) which is arranged in the second assembling shell (12) and is fixedly connected with the second assembling shell, the inner end of the second assembling shell (12) extends into the liquid passing port (7) in the first assembling shell (3), the outer end of the second assembling shell (12) extends outwards along the axis of the liquid passing port (7) and penetrates out of the valve body (1), the outer peripheral wall of the second assembling shell (12) at the water outlet is provided with a plurality of communicating ports (14) which enable the second assembling cavity to be communicated with the water outlet, and a second sealing cover (15) which is convenient for replacing the filter screen (13) and ensures the sealing performance of the joint is arranged at the outer end of the second assembling shell (12).

6. The check valve of claim 1, wherein the buffer unit is composed of a plurality of buffer plates (16), the buffer plates (16) are provided with a plurality of buffer holes (17) arranged at intervals along the circumferential direction, and the buffer holes (17) in the adjacent buffer plates (16) are arranged in a staggered manner.