CN215522108U

CN215522108U - Loose joint locking check ball valve in front of meter

Info

Publication number: CN215522108U
Application number: CN202122124609.8U
Authority: CN
Inventors: 黄海葱; 蔡华锋; 王双
Original assignee: Zhejiang Huibo Valve Technology Co ltd
Current assignee: Zhejiang Huibo Valve Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-14
Anticipated expiration: 2031-09-03

Abstract

The utility model provides a meter front loose joint locking check ball valve, and belongs to the technical field of valve manufacturing. It has solved current check ball valve and has appeared the non return time delay that resets easily, the relatively poor problem of structural stability. This loose joint locking check ball valve before table includes the valve body, is provided with the case in the valve body, is provided with the valve rod on the valve body, and this valve rod control case opens or closes in the valve body, can dismantle on the outlet pipe of valve body and be equipped with loose joint subassembly, is equipped with the non return core between the outlet pipe of loose joint subassembly and valve body, is provided with the non return step in the outlet pipe of valve body, non return core elastic sealing acts on the non return step on, be provided with the adjusting device who is used for adjusting non return core elastic force size between non return core and the loose joint subassembly. The utility model has reasonable and simple structural design, the elastic force of the non-return core can be adjusted by the adjusting sleeve, the non-return core does not have the condition of non-return reset delay when used for a long time, the structural stability is good, and the use is convenient.

Description

Loose joint locking check ball valve in front of meter

Technical Field

The utility model belongs to the technical field of valve manufacturing, and relates to a front loose joint locking check ball valve.

Background

For example, chinese patent literature discloses a ball valve having a check function [ application No.: 201610739209.9, respectively; application publication No.: CN106337953A ], it includes valve cavity, the connecting valve pipe, the water conservancy diversion valve pipe, fixed linking lid, the water conservancy diversion mouth of pipe, the spheroid, the disk seat, the sealing layer, the valve rod, the location lug, rotatory silk cover, the handle, the handheld pad, the valve gap and tightly hold the silk hole, valve cavity both sides are equipped with the intercommunication valve pipe, the water conservancy diversion valve pipe sets up in the intercommunication valve outside of managing, and the water conservancy diversion valve pipe is connected with the connecting valve union coupling through fixed linking lid, the inside water conservancy diversion mouth of pipe that is equipped with of water conservancy diversion valve pipe, the non return device is connected to the water conservancy diversion mouth of pipe, the inside spheroid that is equipped with of valve cavity, the non return device includes the check valve body, the check valve core, spring and sealing washer.

In foretell ball valve with non return effect, the elastic force of this spring can not be adjusted, and when using for a long time, the non return time delay that resets appears easily, and structural stability is relatively poor, and the pressure of the interior medium of balanced valve body that can not be fine uses inconveniently.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides the front loose-joint locking check ball valve which is simple in structure, adjustable in elastic force of the check core, stable in structure and convenient to use.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a loose joint locking check ball valve before table, includes the valve body, the valve body in be provided with the case, the valve body on be provided with the valve rod, this valve rod control case opens or closes in the valve body, its characterized in that, the outlet pipe of valve body on can dismantle and be equipped with loose joint subassembly, the outlet pipe of loose joint subassembly and valve body between be equipped with the non return core, the outlet pipe of valve body in be provided with the non return step, non return core elastic seal act on the non return step on, non return core and loose joint subassembly between be provided with the adjusting device who is used for adjusting non return core elastic force size.

This loose joint locking check ball valve before table mainly sets up adjusting device between non return core and loose joint subassembly, adjusts through adjusting device to the magnitude of the elastic force of non return core, causes the non return core condition that the non return resets time delay can not appear in the valve body, and structural stability is high, convenient to use.

In foretell loose joint locking check ball valve before table, loose joint subassembly include loose joint pipe and loose joint cap, the outer end of loose joint pipe have a loose joint and turn over along, loose joint cap movable sleeve locate the loose joint of loose joint pipe and turn over along on, the outer wall of the inner of loose joint pipe on have an external screw thread, the inner wall of the outlet pipe of valve body on have an internal thread, the external screw thread rotation assembly in the inner of the outlet pipe of valve body on the internal thread of the outlet pipe of valve body. The purpose of the arrangement is to facilitate the assembly of the movable connecting pipe on the water outlet pipe of the valve body, and the production and the manufacture are convenient.

In the meter front loose joint locking check ball valve, the inner wall of the outer end of the loose joint pipe is provided with an inner hexagonal surface which is used for inserting and assembling a pipeline, the inner end of the loose joint pipe is provided with a first assembling guide ring, and an outer guide column on the check core is axially inserted and assembled in the first assembling guide ring of the loose joint pipe. Through setting up hexagon face in can making loose joint pipe and pipeline carry out effectual grafting assembly, can prevent that the pipeline from taking place circumferential direction's the condition at the inner wall of loose joint pipe, structural stability is high.

In foretell table loose joint locking check ball valve, adjusting device include the adjusting collar, the middle part position of the outer end of non return core the round platform has, the outer guide post on the non return core on be located the round platform of non return core with the axial, the adjusting collar spiral shell locate on the round platform, the outer guide post on the non return core on the cover be equipped with compression spring, compression spring's one end elasticity support and lean on the adjusting collar, compression spring's other end elasticity support and lean on the first assembly guide ring of loose joint pipe. The elastic force of the compression spring can be adjusted by adjusting the axial displacement of the spiral of the adjusting sleeve and the circular truncated cone; under the elastic action of the compression spring, the spiral looseness of the movable connecting pipe and the water outlet pipe of the valve body can be effectively prevented, and the stability of the structure is high.

In the meter front loose joint locking check ball valve, a second assembly guide ring which is coaxially arranged with the first assembly guide ring at the inner end of the loose joint pipe is arranged in the water outlet pipe of the valve body, and an inner guide column on the check core is axially inserted and assembled in the second assembly guide ring of the loose joint pipe. The purpose of setting up like this can guarantee that the assembly of interior guide post on the non return, outer guide post is on same axial lead, guarantees the concentricity of non return core, and structural stability is high.

In the meter front loose joint locking check ball valve, the valve body at the upper end of the valve rod is provided with the valve sleeve, and the valve sleeve is provided with the protecting cover which hides the upper end of the valve rod in the valve sleeve. Can carry out rust-resistant or dustproof protection, stable in structure to the upper end of valve rod through setting up the protecting cover.

In the meter front loose joint locking check ball valve, the valve body in the valve sleeve is provided with the positioning pin, and the protecting cover is axially assembled with the valve sleeve in a spiral mode and is axially assembled and positioned through the positioning pin. The purpose of the arrangement is to ensure that the position of the axial assembly of the protective cover on the valve sleeve is accurate and the use is convenient.

Compared with the prior art, the loose joint locking check ball valve in front of the meter has the advantages that: structural design is reasonable, simple, and non return core elastic force size accessible is adjusted the cover and is adjusted, and during the long time use, the non return condition of time delay that resets can not appear in this non return core, and the stability of structure is good, convenient to use.

Drawings

FIG. 1 is a schematic sectional view of a loose-joint locking check ball valve in front of the meter.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a valve body; 2. a valve core; 3. a valve stem; 4. a check core; 5. a non-return step; 6. a loose joint pipe; 7. a detachable cap; 8. loose joint and edge turning; 9. a hexagon socket surface; 10. a first assembly guide ring; 11. an outer guide post; 12. an adjusting sleeve; 13. a circular truncated cone; 14. a compression spring; 15. a second assembly guide ring; 16. an inner guide post; 17. a valve housing; 18. a protective cover; 19. and a locating pin.

Detailed Description

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

As shown in fig. 1 and 2, the front loose joint locking check ball valve mainly comprises a valve body 1, a valve core 2 is arranged in the valve body 1, a valve rod 3 is arranged on the valve body 1, the valve rod 3 controls the valve core 2 to open or close in the valve body 1, a loose joint assembly is detachably assembled on a water outlet pipe of the valve body 1, a check core 4 is arranged between the loose joint assembly and the water outlet pipe of the valve body 1, a check step 5 is arranged in the water outlet pipe of the valve body 1, and the check core 4 acts on the check step 5 in an elastic sealing manner; during actual manufacturing, the loose joint assembly mainly comprises a loose joint pipe 6 and a loose joint cap 7, wherein the outer end of the loose joint pipe 6 is provided with a loose joint turning edge 8, the loose joint cap 7 is movably sleeved on the loose joint turning edge 8 of the loose joint pipe 6, the outer wall of the inner end of the loose joint pipe 6 is provided with an external thread, the inner wall of the water outlet pipe of the valve body 1 is provided with an internal thread, and the external thread of the inner end of the loose joint pipe 6 is rotatably assembled on the internal thread of the water outlet pipe of the valve body 1; the inner wall of the outer end of the movable connecting pipe 6 is provided with an inner hexagonal surface 9, the inner hexagonal surface 9 is used for inserting and assembling pipelines, the inner end of the movable connecting pipe 6 is provided with a first assembling guide ring 10, and an outer guide post 11 on the non-return core 4 is axially inserted and assembled in the first assembling guide ring 10 of the movable connecting pipe 6.

During actual manufacturing, an adjusting device for adjusting the elastic force of the check core 4 is arranged between the check core 4 and the loose joint assembly; the specific implementation mode of the adjusting device is as follows: the check valve mainly comprises an adjusting sleeve 12, a circular truncated cone 13 is arranged in the middle of the outer end of a check core 4, an outer guide post 11 on the check core 4 is coaxially positioned on the circular truncated cone 13 of the check core 4, the adjusting sleeve 12 is spirally sleeved on the circular truncated cone 13, a compression spring 14 is sleeved on the outer guide post 11 on the check core 4, one end of the compression spring 14 is elastically abutted against the adjusting sleeve 12, and the other end of the compression spring 14 is elastically abutted against a first assembling guide ring 10 of a movable connecting pipe 6; a second assembly guide ring 15 which is coaxially arranged with the first assembly guide ring 10 at the inner end of the movable connecting pipe 6 is arranged in the water outlet pipe of the valve body 1, and an inner guide post 16 on the check core 4 is axially inserted and assembled in the second assembly guide ring 15 of the movable connecting pipe 6.

In actual manufacturing, a valve sleeve 17 is arranged on the valve body 1 at the upper end of the valve rod 3, and a protecting cover 18 for hiding the upper end of the valve rod 3 in the valve sleeve 17 is arranged on the valve sleeve 17; specifically, the valve body 1 in the valve housing 17 is provided with a positioning pin 19, the protecting cover 18 is axially assembled with the valve housing 17 in a spiral manner, and the positioning pin 19 is used for axially assembling and positioning the protecting cover 18.

Those not described in detail in this specification are within the skill of the art. 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 utility model provides a loose joint locking check ball valve before table, includes valve body (1), valve body (1) in be provided with case (2), valve body (1) on be provided with valve rod (3), this valve rod (3) control case (2) open or close in valve body (1), its characterized in that, the outlet pipe of valve body (1) on can dismantle and be equipped with the loose joint subassembly, the outlet pipe of loose joint subassembly and valve body (1) between be equipped with non return core (4), the outlet pipe of valve body (1) in be provided with non return step (5), non return core (4) elastic sealing act on non return step (5) on be provided with the adjusting device who is used for adjusting non return core (4) elastic force size between non return core (4) and the loose joint subassembly.

2. The watch front loose joint locking check ball valve according to claim 1, characterized in that the loose joint assembly comprises a loose joint pipe (6) and a loose joint cap (7), the outer end of the loose joint pipe (6) is provided with a loose joint turned edge (8), the loose joint cap (7) is movably sleeved on the loose joint turned edge (8) of the loose joint pipe (6), the outer wall of the inner end of the loose joint pipe (6) is provided with an external thread, the inner wall of the water outlet pipe of the valve body (1) is provided with an internal thread, and the external thread of the inner end of the loose joint pipe (6) is rotatably assembled on the internal thread of the water outlet pipe of the valve body (1).

3. A watch front loose joint locking check ball valve according to claim 2, characterized in that the inner wall of the outer end of the loose joint tube (6) is provided with a hexagon socket face (9), the hexagon socket face (9) is used for the plug-in assembly of the pipeline, the inner end of the loose joint tube (6) is provided with a first assembly guide ring (10), and an outer guide post (11) on the check core (4) is axially inserted and assembled in the first assembly guide ring (10) of the loose joint tube (6).

4. The utility model discloses a loose joint locking check ball valve before table according to claim 3, characterized in that, adjusting device include adjusting collar (12), the middle part position of the outer end of non return core (4) round platform (13) have, non return core (4) on outer guide post (11) on be located non return core (4) round platform (13) with the axial, adjusting collar (12) spiral shell locate round platform (13) on, non return core (4) on outer guide post (11) go up the cover and be equipped with compression spring (14), one end elasticity of compression spring (14) support and lean on adjusting collar (12), the other end elasticity of compression spring (14) support and lean on first assembly guide ring (10) of loose joint pipe (6).

5. A watch front loose joint locking check ball valve according to claim 4, characterized in that the outlet pipe of the valve body (1) is provided with a second assembling guide ring (15) which is coaxially arranged with the first assembling guide ring (10) at the inner end of the loose joint pipe (6), and the inner guide post (16) on the check core (4) is axially inserted and assembled in the second assembling guide ring (15) of the loose joint pipe (6).

6. The meter front loose joint locking check ball valve as recited in claim 1, characterized in that the valve body (1) at the upper end of the valve stem (3) is provided with a valve sleeve (17), and the valve sleeve (17) is provided with a protective cover (18) for hiding the upper end of the valve stem (3) in the valve sleeve (17).

7. A meter front loose joint locking check ball valve according to claim 6, characterized in that the valve body (1) in the valve housing (17) is provided with a positioning pin (19), the protecting cover (18) is axially assembled with the valve housing (17) in a spiral manner, and the positioning pin (19) is used for axially assembling and positioning the protecting cover (18).