CN220870156U - Check valve core with good sealing effect - Google Patents

Abstract

The utility model discloses a check valve core with a good sealing effect, which comprises a valve core seat, a valve core cover and a spring, wherein the bottom of the valve core seat is provided with the valve core cover, the top of the valve core seat is provided with a guide groove in a penetrating way, the top of the valve core cover is fixedly connected with a clamping groove, the inside of the clamping groove is clamped with a sealing ring, the inner wall of the valve core cover is provided with a rubber ring, the rubber ring is positioned outside the clamping groove, and the inside of the guide groove is provided with a guide post. According to the utility model, the valve core seat, the valve core cover, the guide groove, the guide post, the valve core valve, the matching ring, the clamping groove, the sealing ring, the rubber ring and the spring are arranged, so that the valve core of the check valve has a good sealing effect, the leakage of a medium in the valve core is prevented, the service life of the valve core of the check valve is prolonged, the use effect is excellent, and the problems and the defects in the existing valve core are effectively solved.

Description

Check valve core with good sealing effect

Technical Field

The utility model relates to the technical field of check valve spools, in particular to a check valve spool with a good sealing effect.

Background

The check valve is an automatic valve, and has the main functions of preventing medium from flowing backwards, preventing the reverse rotation of a pump and a driving motor, and discharging the medium of a container, and is particularly important in the performance of a check valve core used in pipelines in the production of chemical industry, food and the like.

However, in the use process of the existing check valve core, the sealing effect of the valve core is poor, and leakage of media in the valve core is easy to occur, so that the use effect of the valve core is affected.

In view of the above, the present invention provides a check valve core with good sealing effect, which can prevent leakage of medium in the core, and has the advantages of long service life, excellent use effect, and high practical value.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a check valve core with a good sealing effect.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a better check valve case of sealed effect, includes valve core seat, case lid and spring, the bottom of valve core seat is provided with the case lid, the top of valve core seat is run through and is provided with the guide way, the top fixedly connected with joint groove of case lid, the inside joint in joint groove has the sealing washer, the inner wall of valve core lid is provided with the rubber circle, and the rubber circle is located the outside in joint groove, the inside in guide way is provided with the guide post.

As further optimization of the technical scheme, the check valve core with the good sealing effect is characterized in that the bottom end of the guide post is fixedly connected with the valve core, the valve core is positioned in the valve core seat, and the top of the valve core valve is fixedly connected with the symmetrically arranged matching rings.

As a further optimization of the technical scheme, the check valve core with the good sealing effect is characterized in that the surface of the guide post is sleeved with the spring, the top of the valve core valve is fixedly connected with the spring positioning seat, the spring positioning seat is positioned below the rigid spring, and the top of the spring positioning seat is provided with the positioning groove in a penetrating manner.

As a further optimization of the technical scheme, the check valve core with the good sealing effect is characterized in that the guide sleeve is fixedly connected to the inner top wall of the valve core seat, the guide sleeve is positioned in the spring, and a lubricating coating is arranged on the inner surface of the guide sleeve.

As further optimization of the technical scheme, the check valve core with the good sealing effect is provided with the through-flow opening penetrating through the bottom of the valve core cover, and through holes penetrating through the top of the valve core seat at equal intervals.

The utility model has the following beneficial effects:

According to the utility model, the valve core seat, the valve core cover, the guide groove, the guide post, the valve core valve, the matching ring, the clamping groove, the sealing ring, the rubber ring and the spring are arranged, when a medium in the valve core flows, the compressed spring can reset, the reset spring drives the valve core valve to approach to the direction of the valve core cover, so that the valve core valve is utilized to block the opening of the flow passage, the closed valve core valve can drive the matching ring and the rubber ring to extrude and match with the use of the sealing ring to effectively and stably seal the valve core, and therefore, through the arrangement of the valve core sealing structure, the valve core of the check valve has a good sealing effect, so that the leakage phenomenon of the medium in the valve core can be prevented, the service life of the valve core of the check valve is prolonged, and the problems and the defects in the existing valve core are effectively solved.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic view of the structure at A of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure of the present utility model.

In the figure: 1. a valve core seat; 2. a valve core cover; 3. a guide groove; 4. a guide post; 5. a valve core valve; 6. a mating ring; 7. a clamping groove; 8. a seal ring; 9. a rubber ring; 10. a spring; 11. a spring positioning seat; 12. a positioning groove; 13. a guide sleeve; 14. a lubricating coating; 15. a flow-through port; 16. and a through hole.

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.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a better check valve case of sealed effect, includes valve core seat 1, case lid 2 and spring 10, the bottom of valve core seat 1 is provided with case lid 2, the top of valve core seat 1 runs through and is provided with guide way 3, the top fixedly connected with joint groove 7 of valve core lid 2, the inside joint of joint groove 7 has sealing washer 8, the inner wall of valve core lid 2 is provided with rubber circle 9, and rubber circle 9 is located the outside of joint groove 7, the inside of guide way 3 is provided with guide post 4, the bottom fixedly connected with case lamella 5 of guide post 4, and case lamella 5 is located the inside of valve core seat 1, the top fixedly connected with symmetrical arrangement's of case lamella 6, the surface cup joint of guide post 4 has spring 10, the top fixedly connected with spring positioning seat 11 of case lamella 5, and spring positioning seat 11 is located the below of rigidity spring 10, the top of spring positioning seat 11 runs through and is provided with positioning groove 12, the inside fixedly connected with guide sleeve 13 of valve core seat 1 and guide sleeve 13 are located the inside of spring housing 1, the top wall 13 is located the through-hole 15 is provided with the through-hole 15, the inside of guide sleeve 13 is located the inside of valve core seat 1, the through-hole 15 is provided with.

Specifically, after the medium flows in the valve core, the compressed spring 10 can reset, the reset spring 10 drives the valve core valve 5 to approach to the direction of the valve core cover 2, thereby the valve core valve 5 is utilized to block the opening of the overflow port 15, the closed valve core valve 5 can drive the matched ring 6 to be extruded with the rubber ring 9 and be matched with the use of the sealing ring 8 to carry out effective and stable sealing treatment on the valve core, therefore, the valve core of the check valve has good sealing effect through the arrangement of the valve core sealing structure, the leakage phenomenon of the medium in the valve core is prevented, the service life of the valve core of the check valve is prolonged, and the use effect is excellent, thereby the problems and the defects in the existing valve core are effectively solved.

Working principle: in the process of using the check valve core, after a medium flows through the overflow port 15, the compressed spring 10 can reset, the reset spring 10 drives the valve core valve 5 to approach the direction of the valve core cover 2, so that the valve core valve 5 is utilized to block the opening of the overflow port 15, the closed valve core valve 5 can drive the matching ring 6 to extrude with the rubber ring 9 and match with the use of the sealing ring 8, and the valve core is effectively and stably sealed, so that the condition that the medium in the valve core leaks is prevented.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. The utility model provides a better check valve case of sealed effect, includes valve core seat (1), case lid (2) and spring (10), its characterized in that: the bottom of case seat (1) is provided with case lid (2), the top of case seat (1) runs through and is provided with guide way (3), the top fixedly connected with joint groove (7) of case lid (2), the inside joint of joint groove (7) has sealing washer (8), the inner wall of case lid (2) is provided with rubber circle (9), and rubber circle (9) are located the outside of joint groove (7), the inside of guide way (3) is provided with guide post (4).

2. The check valve cartridge of claim 1 having a good sealing effect, wherein: the bottom end of the guide column (4) is fixedly connected with a valve core valve (5), the valve core valve (5) is positioned in the valve core seat (1), and the top of the valve core valve (5) is fixedly connected with a symmetrically arranged matching ring (6).

3. The check valve cartridge of claim 2 having a good sealing effect, wherein: the surface of guide post (4) has cup jointed spring (10), the top fixedly connected with spring positioning seat (11) of case lamella (5), and spring positioning seat (11) are located the below of stiff spring (10), the top of spring positioning seat (11) runs through and is provided with constant head tank (12).

4. The check valve cartridge of claim 1 having a good sealing effect, wherein: the valve core seat is characterized in that the inner top wall of the valve core seat (1) is fixedly connected with a guide sleeve (13), the guide sleeve (13) is positioned in the spring (10), and a lubricating coating (14) is arranged on the inner surface of the guide sleeve (13).

5. The check valve cartridge of claim 1 having a good sealing effect, wherein: the bottom of case lid (2) is provided with through-flow mouth (15) in a penetrating way, the top equidistance of case seat (1) is provided with through-hole (16) in a penetrating way.