CN220622791U

CN220622791U - Stop valve

Info

Publication number: CN220622791U
Application number: CN202322355492.3U
Authority: CN
Inventors: 谢力民; 吴凯飞
Original assignee: Zhejiang Institute of Special Equipment Science
Current assignee: Zhejiang Institute of Special Equipment Science
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-03-19
Anticipated expiration: 2033-08-30

Abstract

The utility model discloses a stop valve, which comprises a valve body, a valve seat, a valve core and a valve rod, wherein the valve seat is arranged in the valve body, the valve core is arranged at the end part of the valve rod, which is positioned in the valve body, and is used for abutting against the valve seat to seal, the side wall of the valve core is provided with water outlets which are uniformly distributed around the circumference of the valve core, the center of the valve rod is hollow to form water through holes, one end of each water outlet is communicated with the water through hole, the top end of the water through hole penetrates through the top wall of the valve rod to form a water inlet hole for being connected with a high-pressure water source, part of high-pressure water is discharged and sprayed onto the inner wall of an upper cavity of the valve body through the water outlet hole on the side wall of the valve core to realize cleaning, and part of high-pressure water is vertically discharged and sprayed onto the inner wall of a lower cavity of the valve body to realize cleaning of the valve body, so that the valve core and the valve body are not required to be disassembled during the cleaning of impurities adhered on the valve body, and the valve rod is convenient and quick to disassemble.

Description

Stop valve

Technical Field

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

Background

The valve is a pipe fitting for opening and closing a pipe, controlling a flow direction, adjusting and controlling parameters of a transmission medium, and includes a shut-off valve, a gate valve, a check valve, a butterfly valve, and the like, according to kinds.

For example, chinese patent publication No. CN203384393U discloses a stop valve comprising a valve body, a valve rod and a valve clack, wherein the valve rod passes through the valve body, the valve clack is fixed at the lower end of the valve rod, an inlet channel and an outlet channel are arranged in the valve body, a connecting port for communicating the inlet channel and the outlet channel is arranged in the valve body, the valve clack is matched with the connecting port, a trapezoid groove is arranged on the end surface of the valve clack, a sealing element made of rubber or polytetrafluoroethylene material is arranged in the trapezoid groove, and the outer end surface of the sealing element contacts with the end surface of the valve body at the connecting port. The valve clack is provided with the trapezoid groove, rubber or polytetrafluoroethylene is embedded in the trapezoid groove to achieve the sealing purpose, the sealing effect is good, the anti-corrosion purpose is achieved, and the service life is long.

Above-mentioned scheme can improve sealed and antiseptic effect, but after the valve used for a long time, some impurity dirt in the circulation medium can adhere on the valve body inner wall, when need to clean the inside impurity dirt of valve body, need all dismantle the valve rod case after just can going on, has the inconvenient circumstances of cleanness.

Disclosure of Invention

To further facilitate cleaning of the interior of the valve body, the present application provides a shut-off valve.

The application provides a stop valve, adopts following technical scheme:

the utility model provides a stop valve, includes valve body, disk seat, case and valve rod, the disk seat sets up in the valve body, the case sets up the tip that is located the valve body at the valve rod and is used for the butt disk seat to seal, the apopore has been seted up on the lateral wall of case, the apopore is a plurality of around the circumference evenly distributed of case, the central cavity setting of valve rod forms the apopore, each the one end of apopore all communicates with the apopore, the top of apopore runs through the valve rod roof and forms the inlet opening that is used for being connected with high-pressure water source.

Optionally, valve body and end connection are worn out to the one end of valve rod have the hand wheel, the hand wheel includes ring body, pedestal and connecting rod, the both ends of connecting rod connect seat body and ring body respectively, the inside cavity setting of ring body forms the ring chamber, the hole for water spraying has been seted up to the diapire of ring body, set up the intercommunicating pore with the hole for water passing through on the pedestal, the inside cavity of connecting rod forms the passageway, the both ends intercommunication hole for water spraying and intercommunicating pore of passageway.

Optionally, the pedestal is connected with the valve rod screw thread, the side hole that has on the valve rod lateral wall with the limbers intercommunication, the inner wall that the one end of intercommunicating pore runs through the pedestal is used for with the side hole intercommunication.

Optionally, the valve rod corresponds the upper and lower both ends threaded connection of pedestal and has stop nut, stop nut is used for supporting the up and down terminal surface of pedestal.

Optionally, vertical holes communicated with the water through holes are formed in the bottom wall of the valve core, and a plurality of vertical holes are uniformly distributed in the bottom wall of the valve core.

Optionally, the case includes fixed part and movable part, the vertical sliding connection of movable part is on the fixed part, have the conical surface that is used for with the disk seat butt on the movable part, the perpendicular hole is seted up on the movable part, have the intermediate hole with the intercommunicating pore intercommunication on the fixed part, form the intercommunication chamber between fixed part and the movable part, intermediate hole and intercommunication chamber intercommunication, perpendicular hole and intermediate hole dislocation set, when the movable part supports tight disk seat seal, the intercommunication chamber is compressed and perpendicular hole and intermediate hole dislocation are not linked together.

Optionally, the valve body is last to have rather than dismantling the valve gap of being connected, have the screw thread section on the valve rod, have the connecting portion with the screw thread section threaded connection of valve rod on the valve gap, threaded connection has the stopper on the valve rod, the stopper is located the roof butt of connecting portion top for with connecting portion.

Optionally, threaded connection has the cock body on the inlet opening, the top of cock body has the link of screw thread form, the inside cavity of cock body and middle part are provided with the seal membrane, the intercommunication seam of seting up on the seal membrane.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the high-pressure water source is introduced from the water inlet hole, part of the high-pressure water is discharged and sprayed onto the inner wall of the upper cavity of the valve body through the water outlet hole on the side wall of the valve core, so that the cleaning is realized, and part of the high-pressure water is vertically discharged and sprayed onto the inner wall of the lower cavity of the valve body from the vertical hole, so that the cleaning of the adhered impurities on the valve body is realized, the valve core and the valve rod are not required to be disassembled during the cleaning, and the disassembly is convenient and quick;

2. the water spraying holes are formed in the ring body of the hand wheel, so that the outside of the valve body can be cleaned synchronously through the water spraying holes, and when the water spraying holes are not needed, the hand wheel is only required to be rotated to ensure that the water spraying holes are not communicated with the water through holes of the valve rod any more, and the operation is simple and convenient;

3. when the valve rod drives the valve core to move downwards to be in butt joint with the valve seat, the movable part moves upwards to enable the vertical hole to be not communicated with the middle hole, good sealing can be achieved at the moment, the condition that liquid in the valve body enters from the vertical hole is avoided, when cleaning is needed, the valve core is driven to move upwards, the movable part moves downwards under the action of self gravity, the vertical hole is communicated with the middle hole, and high-pressure water can be vertically discharged through the vertical hole to achieve the aim of cleaning the inner wall of the valve body.

Drawings

Fig. 1 is an overall structural diagram of an embodiment of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

Reference numerals illustrate:

1. a valve body; 2. a valve seat; 3. a valve core; 4. a valve stem; 5. a liquid inlet; 6. a liquid outlet; 7. a communication groove; 8. a hand wheel; 9. a valve cover; 10. a connection part; 11. an upper chamber; 12. a lower cavity; 13. a water outlet hole; 14. a water through hole; 15. a water inlet hole; 16. a base; 17. a connecting rod; 18. a ring body; 19. a limit nut; 20. a ring cavity; 21. a water spraying hole; 22. a channel; 23. a side hole; 24. a communication hole; 25. a fixing part; 26. a movable part; 27. a conical surface; 28. a hook body; 29. a fixed block; 30. a chute; 31. a vertical hole; 32. a middle hole; 33. a threaded section; 37. a limiting block; 38. a plug body; 39. a sealing film; 40. a communication slot; 41. and a connecting end.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a stop valve.

As shown in fig. 1, a stop valve comprises a valve body 1, a valve seat 2, a valve core 3 and a valve rod 4, wherein the valve seat 2 is arranged in the valve body 1, two ends of the valve body 1 are respectively provided with a liquid inlet 5 and a liquid outlet 6, the center of the valve seat 2 is penetrated to form a communication groove 7 for communicating the liquid inlets 5 and the liquid outlets 6, the valve core 3 is arranged at the end part of the valve rod 4, which is positioned in the valve body 1, the valve core 3 is used for abutting against the valve seat 2 to realize the sealing of the communication groove 7, the other end of the valve rod 4 penetrates out of the valve body 1 and is connected with a hand wheel 8, a valve cover 9 is arranged above the valve body 1, the valve cover 9 and the valve body 1 are detachably connected through bolts, and a connecting part 10 for the valve rod 4 to penetrate and be in threaded connection is arranged on the valve cover 9, so that the valve cover can be driven to move up and down by rotating the valve rod 4, and the valve core 3 is driven to move up and down to realize the opening and closing of the valve.

As shown in fig. 1, the valve core 3 divides the interior of the valve body 1 into an upper cavity 11 and a lower cavity 12, a water outlet hole 13 is laterally formed above the side wall of the valve core 3, water outlet holes 14 are formed in the hollow center of the valve rod 4, the water outlet holes 13 are uniformly distributed around the circumference of the side wall of the valve core 3, the bottom ends of the water outlet holes 14 are communicated with the water outlet holes 13, the top ends of the water outlet holes 14 penetrate through the top wall of the valve rod 4 to form a water inlet hole 15, and thus when the inner wall of the valve body 1 needs to be cleaned, high-pressure water is discharged from the water outlet hole 13 by connecting a high-pressure water source at the water inlet hole 15, the valve core 3, the valve rod 4 and the valve cover 9 do not need to be detached, and the up-down movement of the valve rod 4 can also realize the adjustment of the cleaning position.

As shown in fig. 1, the hand wheel 8 comprises a seat 16, a connecting rod 17 and a ring 18 which are sequentially arranged from inside to outside, the seat 16, the connecting rod 17 and the ring 18 are integrally arranged, the seat 16 is in threaded connection with the valve rod 4, the upper end and the lower end of the valve rod 4 corresponding to the seat 16 are both in threaded connection with limit nuts 19 so as to limit the upper position and the lower position of the seat 16, the interior of the ring 18 is hollow and forms a ring cavity 20, a water spraying hole 21 communicated with the ring cavity 20 is formed in the bottom wall of the ring 18, the water spraying hole 21 is vertically downwards arranged, a channel 22 is formed in the interior of the connecting rod 17, the channel 22 is used for communicating the ring cavity 20 and the water spraying hole 14, a side hole 23 communicated with the water spraying hole 14 is formed in the side wall of the valve rod 4, a communication hole 24 communicated with the side hole 23 is formed in the seat 16, one end of the communication hole 24 away from the side hole 22 is communicated with the channel 22, so that a high-pressure water part in the water spraying hole 14 can be sprayed out through the water spraying hole 21, the cleaning of the outer surface of the valve is synchronously realized, and when the water spraying hole 21 is not needed, the seat 16 and the side hole 24 and the water spraying hole 23 can be conveniently and quickly sprayed water in a misplaced mode.

As shown in fig. 1 and 2, the valve core 3 includes a fixed portion 25 and a movable portion 26, the movable portion 26 is vertically slidably connected under the fixed portion 25, the valve stem 4 is connected to the fixed portion 25, the water outlet 13 is disposed on the fixed portion 25, a conical surface 27 for abutting and sealing the valve seat 2 is disposed on the movable portion 26, a hook 28 is disposed on a side wall of the movable portion 26, a fixed block 29 is convexly disposed on an outer wall of the fixed portion 25, and a sliding groove 30 for sliding the fixed block 29 is formed between the hook 28 and the side wall of the fixed portion 25, so that vertical sliding of the movable portion 26 relative to the movable portion 26 is realized and the two cannot be completely separated.

As shown in fig. 1 and 2, a vertical hole 31 is formed in the bottom wall of the movable part 26, a middle hole 32 communicated with the water through hole 14 is formed in the bottom wall of the fixed part 25, the vertical hole 31 vertically penetrates through the top wall of the movable part 26 and is staggered with the middle hole 32, when the valve rod 4 drives the valve core 3 to move downwards so that the conical surface 27 of the movable part 26 abuts against the bottom wall of the fixed part 25 to seal the valve seat 2, and at the moment, the middle hole 32 is not communicated with the vertical hole 31 in a staggered manner; when the valve core 3 moves upwards to enable the valve to be in a communicating state, the movable part 26 moves downwards under the action of self gravity, at the moment, the top of the movable part 26 is not abutted against the bottom wall of the fixed part 25 any more, at the moment, a communicating cavity is formed between the fixed part 25 and the movable part 26, and the communicating cavity is communicated with the vertical hole 31 and the middle hole 32, so that a high-pressure water part in the water through hole 14 can be vertically sprayed out through the vertical hole 31 to synchronously clean the inner wall of the lower cavity 12 corresponding to the valve body 1, and the cleaning comprehensiveness of the inner wall of the valve body 1 is effectively improved; in other embodiments, a sealing ring is arranged corresponding to the outer circumference of the communication cavity, the sealing ring is made of rubber and has elasticity, the sealing ring is used for sealing the outer circumference of the communication cavity, high-pressure water can be better sprayed out of the vertical hole 31, and meanwhile, the sealing ring can replace the hook 28 to realize connection between the movable part 26 and the fixed part 25.

As shown in FIG. 1, the valve rod 4 is provided with a thread section 33 and is in threaded connection with the connecting portion 10 of the valve cover 9 by means of the thread section 33, and a limiting block 37 is in threaded connection with the upper portion of the corresponding connecting portion 10 on the valve rod 4, so that when the inner wall of the valve body 1 needs to be cleaned, the valve rod 4 is rotated to be separated from the connecting portion 10 in threaded connection, the limiting block 37 is rotated to move downwards to be abutted with the top wall of the connecting portion 10, at the moment, the valve rod 4 can be smoothly rotated and is supported by the abutment of the limiting block 37 and the connecting portion 10 without falling, and at the moment, the water outlet hole 13 can be cleaned more comprehensively by rotating the valve rod 4.

As shown in fig. 1 and 3, a plug body 38 is screwed at the top water inlet 15 of the valve rod 4, a threaded connection end 41 is arranged at the top of the plug body 38 and is used for connecting a high-pressure water source, a sealing membrane 39 is arranged in the middle of the hollow part of the plug body 38, and a communication slot 40 is formed in the sealing membrane 39, so that when the water inlet 15 is not used, the sealing membrane 39 can seal the water, external impurities cannot enter, when the high-pressure water can wash the communication slot 40 of the sealing membrane 39, the communication effect can still be realized, and the valve rod 4 is also convenient to connect with the high-pressure water source due to the arrangement of the plug body 38.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a stop valve, includes valve body (1), disk seat (2), case (3) and valve rod (4), disk seat (2) set up in valve body (1), case (3) set up at the tip that valve rod (4) are located valve body (1) and are used for butt disk seat (2) sealed, its characterized in that: the side wall of the valve core (3) is provided with water outlet holes (13), the water outlet holes (13) are uniformly distributed around the circumference of the valve core (3), the center of the valve rod (4) is hollow to form water through holes (14), one end of each water outlet hole (13) is communicated with the water through hole (14), and the top end of the water through hole (14) penetrates through the top wall of the valve rod (4) to form a water inlet hole (15) for being connected with a high-pressure water source.

2. A shut-off valve as defined in claim 1 wherein: valve body (1) and end connection are worn out to one end of valve rod (4) have hand wheel (8), hand wheel (8) are including ring body (18), pedestal (16) and connecting rod (17), the both ends of connecting rod (17) are connecting seat body (16) and ring body (18) respectively, the inside cavity setting of ring body (18) forms ring chamber (20), hole for water spraying (21) have been seted up to the diapire of ring body (18), set up on pedestal (16) with water hole for water communication (14) intercommunicating pore (24), the inside cavity of connecting rod (17) forms passageway (22), hole for water spraying (21) and intercommunicating pore (24) are linked together at the both ends of passageway (22).

3. A shut-off valve as defined in claim 2 wherein: the valve is characterized in that the seat body (16) is in threaded connection with the valve rod (4), a side hole (23) communicated with the water through hole (14) is formed in the side wall of the valve rod (4), and one end of the communication hole (24) penetrates through the inner wall of the seat body (16) and is used for being communicated with the side hole (23).

4. A shut-off valve according to claim 3, wherein: limiting nuts (19) are connected to the upper end and the lower end of the valve rod (4) corresponding to the seat body (16) in a threaded mode, and the limiting nuts (19) are used for abutting against the upper end face and the lower end face of the seat body (16).

5. A shut-off valve as defined in claim 1 wherein: vertical holes (31) communicated with the water through holes (14) are formed in the bottom wall of the valve core (3), and a plurality of vertical holes (31) are uniformly distributed in the bottom wall of the valve core (3).

6. A shut-off valve as defined in claim 5 wherein: the valve core (3) comprises a fixed part (25) and a movable part (26), wherein the movable part (26) is vertically and slidingly connected to the fixed part (25), a conical surface (27) for being abutted to a valve seat (2) is arranged on the movable part (26), a vertical hole (31) is formed in the movable part (26), an intermediate hole (32) communicated with a communication hole (24) is formed in the fixed part (25), a communication cavity is formed between the fixed part (25) and the movable part (26), the intermediate hole (32) is communicated with the communication cavity, the vertical hole (31) is in staggered arrangement with the intermediate hole (32), and when the movable part (26) abuts against the valve seat (2), the communication cavity is compressed and the vertical hole (31) is not communicated with the intermediate hole (32) in staggered arrangement.

7. A shut-off valve as defined in claim 1 wherein: valve body (1) is last have rather than dismantling valve gap (9) of being connected, have screw thread section (33) on valve rod (4), have on valve gap (9) with screw thread section (33) threaded connection's of valve rod (4 connecting portion (10), threaded connection has stopper (37) on valve rod (4), stopper (37) are located connecting portion (10) top and are used for the roof butt with connecting portion (10).

8. A shut-off valve as defined in claim 1 wherein: the water inlet hole (15) is connected with a plug body (38) in a threaded manner, the top end of the plug body (38) is provided with a threaded connecting end (41), the inside of the plug body (38) is hollow, the middle of the plug body is provided with a sealing membrane (39), and a communication seam (40) is formed in the sealing membrane (39).