CN220151968U

CN220151968U - Small check valve

Info

Publication number: CN220151968U
Application number: CN202321685174.7U
Authority: CN
Inventors: 朴东升; 李晓军; 敬慎俊; 张万云; 孙哲; 朱凌丽
Original assignee: Shanghai Sino Korea Ez Joint Valve Co ltd
Current assignee: Shanghai Sino Korea Ez Joint Valve Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-08
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a small check valve, which is characterized by comprising a valve body with a hollow interior and a valve core; the valve core is arranged in the valve body; the top of the valve body is provided with a first through hole (102); the bottom of the valve body is provided with a second through hole (202) which is coaxially arranged with the first through hole (102). The small check valve provided by the utility model can be installed on the pipeline only by inserting the pipeline into the through holes at the two ends of the valve body, so that the check valve can be conveniently assembled in a narrow space.

Description

Small check valve

Technical Field

The utility model relates to the field of valves, in particular to a small check valve.

Background

The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. The check valve in the prior art is mostly installed in a system by means of flanges at two ends of the check valve, but cannot meet the installation in a narrow environment due to the large size of the check valve.

Disclosure of Invention

The utility model provides a compact check valve.

The utility model provides a small check valve, which comprises a valve body and a valve core, wherein the valve body is hollow in the interior; the valve core is arranged in the valve body; the top of the valve body is provided with a first through hole (102); the bottom of the valve body is provided with a second through hole (202) which is coaxially arranged with the first through hole (102).

Preferably, the first through hole (102) and the second through hole (202) are threaded holes (not shown).

Preferably, the valve body comprises an upper valve seat (101) and a lower valve seat (201); the outer diameter of the upper valve seat (101) is the same as the outer diameter of the lower valve seat (201); an annular groove (103) is formed in the outer wall, close to the bottom, of the upper valve seat (101) along the circumferential direction of the upper valve seat; the top of the lower valve seat (201) is provided with a first groove, so that the top of the lower valve seat forms a first ring body (203); the first ring body (203) is inserted into the annular groove (103) and is in threaded connection with the upper valve seat (101).

Preferably, the second through hole (202) is arranged at the top center of the lower valve seat (201); the inner wall of the second through hole (202) is also provided with a first convex rib (204) along the circumferential direction; the valve core comprises a valve block (301) and a valve sleeve (302) sleeved on the valve block (301); the valve sleeve (302) is slidably disposed within the second through bore (202) at the top of the first fin (204).

Preferably, the valve core further comprises a valve shaft (303) and a shaft seat; the bottom of the valve shaft (303) is fixed with the valve block (301); the valve shaft (303) is arranged in a sliding manner with the shaft seat.

Preferably, a first cavity (105) is arranged in the upper valve seat (101); the axle seat comprises a second ring body (308) and four connecting arms which are arrayed around the second ring body (308).

Preferably, the connecting arm comprises a first plate (306), a second plate (305) and a third plate (304); the first plate body (306), the second plate body (305) and the third plate body (304) are sequentially connected into a Z-shaped structure; one end of the first plate body (306) far away from the second plate body (305) is fixed with the outer wall of the second ring body (308); the top of the third plate body (304) is fixed with the top of the first cavity (105).

Preferably, the small check valve provided by the utility model further comprises a spring (307); the spring (307) is sleeved on the valve core; one end of the spring (307) is propped against the bottom of the third plate body (304), and the other end is propped against the top of the valve block (301).

Preferably, a symmetrical second groove (104) is arranged near the outer wall of the top of the upper valve seat (101); and a symmetrical third groove (205) is formed near the outer wall of the bottom of the lower valve seat (201).

The small check valve provided by the utility model can be installed on the pipeline only by inserting the pipeline into the through holes at the two ends of the valve body, so that the check valve can be conveniently assembled in a narrow space.

Drawings

FIG. 1 is a schematic view of a first view cross-section of a compact check valve according to the present utility model;

FIG. 2 is a schematic view of a second view cross-section of the compact check valve according to the present utility model;

FIG. 3 is a schematic view of a third view cross-sectional structure of the compact check valve according to the present utility model;

FIG. 4 is a schematic view of a first view of a compact check valve according to the present utility model;

FIG. 5 is a schematic view of a second perspective structure of the compact check valve according to the present utility model;

fig. 6 is a schematic view of a third view angle structure of the compact check valve according to the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.

As shown in fig. 1 to 6, the compact check valve provided in this embodiment includes a valve body and a valve core which are hollow in the interior; the valve core is arranged in the valve body; the top of the valve body is provided with a first through hole 102; the bottom of the valve body is provided with a second through hole 202 coaxially arranged with the first through hole 102. Those skilled in the art will appreciate that the small check valve provided in this embodiment can be installed on the pipe by simply inserting the pipe into the through holes at both ends of the valve body, thereby facilitating the assembly of the check valve in a narrow space.

Further, the first through hole 102 and the second through hole 202 are not shown in the drawings of threaded holes. It will be appreciated by those skilled in the art that the compact check valve provided by the present embodiment may be more stably secured to the pipe by internal threads.

Further, the valve body comprises an upper valve seat 101 and a lower valve seat 201; the outer diameter of the upper valve seat 101 is the same as the outer diameter of the lower valve seat 201; the outer wall of the upper valve seat 101 near the bottom of the upper valve seat is provided with an annular groove 103 along the circumferential direction; the top of the lower valve seat 201 is provided with a first groove, so that the top of the lower valve seat forms a first ring 203; the first ring 203 is inserted into the annular groove 103 to be screwed with the upper valve seat 101. Those skilled in the art will appreciate that the valve cartridge is secured within the valve body by the upper and lower valve seats 101, 201 after assembly within the valve body.

Further, the second through hole 202 is provided in the top center of the lower valve seat 201; the inner wall of the second through hole 202 is further provided with a first rib 204 along the circumferential direction thereof; the valve core comprises a valve block 301 and a valve sleeve 302 sleeved on the valve block 301; the valve sleeve 302 is slidably disposed within the second through bore 202 at the top of the first fin 204. Those skilled in the art will appreciate that when the hair sleeve is slid into the first through hole 102, the second through hole 202 is isolated from the first through hole 102, closing the small check valve, and the first rib 204 limits the sliding distance of the valve sleeve 302.

Further, the valve core further comprises a valve shaft 303 and a shaft seat; the bottom of the valve shaft 303 is fixed with the valve block 301; the valve shaft 303 is slidably disposed with the shaft seat. Those skilled in the art will appreciate that when the water pump is turned on, the valve block 301 is pushed upward, such that the valve block 301 slides out of the second through hole 202, thereby communicating the first through hole 102 with the second through hole 202, such that the check valve is opened.

Further, a first cavity 105 is arranged in the upper valve seat 101; the axle seat includes a second ring 308 and four connecting arms arrayed around the second ring 308. It will be appreciated by those skilled in the art that the shaft seat ensures that the valve shaft 303 slides axially along it, thereby ensuring proper operation of the compact check valve provided by the present embodiment.

Further, the connecting arm includes a first plate 306, a second plate 305, and a third plate 304; the first plate 306, the second plate 305 and the third plate 304 are sequentially connected into a Z-shaped structure; one end of the first plate 306, which is far away from the second plate 305, is fixed to the outer wall of the second ring 308; the top of the third plate 304 is fixed to the top of the first cavity 105.

Further, the small check valve provided in this embodiment further includes a spring 307; the spring 307 is sleeved on the valve core; one end of the spring 307 abuts against the bottom of the third plate 304, and the other end abuts against the top of the valve block 301. Those skilled in the art will appreciate that the valve block 301 can be quickly returned by the spring 307 and can be installed on pipelines in different directions, and the valve block 301 can be quickly closed.

Further, a symmetrical second groove 104 is arranged near the top outer wall of the upper valve seat 101; a symmetrical third groove 205 is provided near the outer wall of the bottom of the lower valve seat 201. It will be appreciated by those skilled in the art that the second recess 104 and the third recess 205 facilitate the assembly of the compact check valve provided by the present embodiment into the system by facilitating the utility person's snap fit into the recesses via a wrench.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A compact check valve is characterized by comprising a valve body and a valve core, wherein the valve body is hollow in the interior; the valve core is arranged in the valve body; the top of the valve body is provided with a first through hole (102); the bottom of the valve body is provided with a second through hole (202) coaxially arranged with the first through hole (102);

the valve body comprises an upper valve seat (101) and a lower valve seat (201); the outer diameter of the upper valve seat (101) is the same as the outer diameter of the lower valve seat (201); an annular groove (103) is formed in the outer wall, close to the bottom, of the upper valve seat (101) along the circumferential direction of the upper valve seat; the top of the lower valve seat (201) is provided with a first groove, so that the top of the lower valve seat forms a first ring body (203); the first ring body (203) is inserted into the annular groove (103) and is in threaded connection with the upper valve seat (101).

2. The compact check valve as recited in claim 1, characterised in that said first through hole (102) and second through hole (202) are both threaded holes.

3. A compact check valve as in claim 2, wherein the second through hole (202) is provided in the top center of the lower valve seat (201); the inner wall of the second through hole (202) is also provided with a first convex rib (204) along the circumferential direction; the valve core comprises a valve block (301) and a valve sleeve (302) sleeved on the valve block (301); the valve sleeve (302) is slidably disposed within the second through bore (202) at the top of the first fin (204).

4. A compact check valve as in claim 3 wherein said valve cartridge further comprises a valve shaft (303) and shaft seat; the bottom of the valve shaft (303) is fixed with the valve block (301); the valve shaft (303) is arranged in a sliding manner with the shaft seat.

5. A compact check valve as recited in claim 4, characterised in that said upper valve seat (101) is provided with a first cavity (105) therein; the axle seat comprises a second ring body (308) and four connecting arms which are arrayed around the second ring body (308).

6. The compact check valve as recited in claim 5, characterised in that said connecting arm includes a first plate (306), a second plate (305) and a third plate (304); the first plate body (306), the second plate body (305) and the third plate body (304) are sequentially connected into a Z-shaped structure; one end of the first plate body (306) far away from the second plate body (305) is fixed with the outer wall of the second ring body (308); the top of the third plate body (304) is fixed with the top of the first cavity (105).

7. The compact check valve as recited in claim 6, further comprising a spring (307); the spring (307) is sleeved on the valve core; one end of the spring (307) is propped against the bottom of the third plate body (304), and the other end is propped against the top of the valve block (301).

8. A compact check valve as recited in claim 7, characterised in that a symmetrical second groove (104) is provided adjacent the top outer wall of said upper valve seat (101); and a symmetrical third groove (205) is formed near the outer wall of the bottom of the lower valve seat (201).