CN214222027U

CN214222027U - Prevent stop valve of leakage

Info

Publication number: CN214222027U
Application number: CN202120310298.1U
Authority: CN
Inventors: 王良明; 沈良丹; 张国庆
Original assignee: Jianeng Valve Co ltd
Current assignee: Jianeng Valve Co ltd
Priority date: 2020-11-26
Filing date: 2021-02-03
Publication date: 2021-09-17
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a prevent stop valve of leakage, including the stop valve body, the top of stop valve body is through leading to the first disk seat of bolt fixedly connected with, the welding has the arc pole on one side outer wall of first disk seat, the one end welding of keeping away from first disk seat on the arc pole has the second disk seat, the inside of first disk seat and second disk seat closes soon through the screw thread and is connected with first screw rod, the top welding of first screw rod has first hand wheel, and the bottom of first screw rod rotates and is connected with the supporting shoe, the bottom welding of supporting shoe has the seal receptacle. This prevent stop valve of leakage through the removal of piston disc in the piston chamber, can be so that the atmospheric pressure increase in the annular gasbag, and the extrusion is between removal post and post cover after the annular gasbag inflation deformation, forms further sealed, avoids appearing leaking the problem that causes the stop valve ability to reduce, improves the prevent leakage ability and the choked flow ability of stop valve.

Description

Prevent stop valve of leakage

Technical Field

The utility model relates to a stop valve technical field specifically is a prevent stop valve of leakage.

Background

The stop valve, also called stop valve, is the most widely used valve, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure.

However, untight problem appears in the stop valve easy in the use of current stop valve to the problem that the series flow leaked appears, the leakproofness of stop valve is poor, and leak protection ability is poor, and in addition, current stop valve is installed fixedly through the flange mostly when being connected with the pipeline, because some pipelines are fixed, just so cause the stop valve to be difficult to keep the angle that needs when the installation, be not convenient for subsequent cut-off operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent stop valve of leakage to propose current stop valve in solving above-mentioned background art and appear the stop valve easily and close untight problem in the use, thereby appear the problem of streaming leakage, the leakproofness of stop valve is poor, prevents that the leakage ability is poor and the stop valve is difficult to the angle that keeps needs when the installation, is not convenient for subsequent problem of ending the operation.

In order to achieve the above object, the utility model provides a following technical scheme: a leakage-proof stop valve comprises a stop valve body, wherein the top of the stop valve body is fixedly connected with a first valve seat through a bolt, an arc-shaped rod is welded on the outer wall of one side of the first valve seat, a second valve seat is welded at one end, far away from the first valve seat, of the arc-shaped rod, the interiors of the first valve seat and the second valve seat are connected with a first screw rod in a screwing mode through threads, a first hand wheel is welded at the top end of the first screw rod, a supporting block is rotatably connected to the bottom end of the first screw rod, a sealing seat is welded at the bottom of the supporting block, a moving column is welded at the central position of the bottom of the sealing seat, an annular groove is formed in the outer wall of one side of the moving column, an annular air bag is embedded in the annular groove, a piston cavity is formed in the supporting block and the sealing seat, and a second screw rod is connected in the first screw rod in a screwing mode through threads, the bottom of second screw rod is rotated and is connected with the piston dish, and the top welding of second screw rod has the second hand wheel, the below position department welding that the inside of stop valve body is close to the seal receptacle has the seal seat circle, the bottom welding of seal seat circle has the post cover, the welding has the connection inner disc on one side outer wall of stop valve body, the welding has the connecting block on connecting the inner disc and being adjacent to one side outer wall of stop valve body, the welding has the connection outer dish on one side outer wall of connecting block, sliding connection has the slider between connecting the outer dish and the connection inner disc, the welding has the change on one side outer wall of slider, the connecting hole has been seted up on one side outer wall of change, close soon through the screw thread and be connected with fastening nut on one side outer wall of connecting block.

Preferably, the annular air bag is communicated with the piston cavity.

Preferably, the connecting inner discs are provided with two connecting inner discs, and the two connecting inner discs are symmetrically arranged on the outer wall of the valve body of the stop valve.

Preferably, a sliding groove is formed in the position, close to the fastening nut, of the outer wall of one side of the connecting outer disc.

Preferably, the cross section of the piston cavity and the piston disc is of a circular structure, and the diameters of the piston cavity and the piston disc are the same.

Preferably, the annular balloon has elastic deformation capability.

Compared with the prior art, the beneficial effects of the utility model are that: this prevent stop valve of leakage, through the removal of piston dish in the piston chamber, can be so that the atmospheric pressure increase in the annular gasbag, the extrusion is between removal post and column jacket after the annular gasbag inflation deformation, form further sealed, avoid appearing leaking the problem that causes the stop valve to end the ability and reduce, improve the prevent leakage ability and the choked flow ability of stop valve, through the slider in connecting the inner disc and connecting the slip between the outer dish, can adjust the position of connecting hole on the swivel, be convenient for follow-up and the ring flange carry out accurate butt joint, thereby guarantee that the stop valve body can be in on required installation angle, be convenient for follow-up rotate first hand wheel and carry out the operation of ending.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the supporting block of the present invention;

FIG. 3 is a front view of the seal retainer of the present invention;

FIG. 4 is a side view of the connecting inner plate of the present invention;

fig. 5 is a top view of the connection outer plate of the present invention.

In the figure: 1. a stop valve body; 2. a first valve seat; 3. an arcuate bar; 4. a second valve seat; 5. a first screw; 6. a first hand wheel; 7. a support block; 8. a sealing seat; 9. moving the column; 10. an annular groove; 11. an annular air bag; 12. a piston cavity; 13. a second screw; 14. a piston disc; 15. a second hand wheel; 16. sealing the seat ring; 17. a column sleeve; 18. connecting the inner disc; 19. connecting blocks; 20. connecting the outer disc; 21. a slider; 22. rotating the ring; 23. connecting holes; 24. and (5) tightening the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a leakage-proof stop valve comprises a stop valve body 1, wherein the top of the stop valve body 1 is fixedly connected with a first valve seat 2 through a through bolt, an arc-shaped rod 3 is welded on the outer wall of one side of the first valve seat 2, a second valve seat 4 is welded on one end, far away from the first valve seat 2, of the arc-shaped rod 3, a first screw 5 is connected inside the first valve seat 2 and the second valve seat 4 in a screwing mode through threads, a first hand wheel 6 is welded on the top end of the first screw 5, the bottom end of the first screw 5 is rotatably connected with a supporting block 7, a sealing seat 8 is welded on the bottom of the supporting block 7, a moving column 9 is welded at the central position of the bottom of the sealing seat 8, an annular groove 10 is formed in the outer wall of one side of the moving column 9, an annular air bag 11 is embedded inside the annular groove 10, a piston cavity 12 is formed in the supporting block 7 and the sealing seat 8, a second screw 13 is connected inside the first screw 5 in a screwing mode through threads, the bottom of second screw rod 13 is rotated and is connected with piston disc 14, and the welding of the top of second screw rod 13 has second hand wheel 15, the welding of below position department that the inside of stop valve body 1 is close to seal receptacle 8 has seal seat circle 16, the welding of the bottom of seal seat circle 16 has post cover 17, the welding has the connection inner disc 18 on one side outer wall of stop valve body 1, it has connecting block 19 to connect inner disc 18 and weld on the adjacent one side outer wall of stop valve body 1, the welding has the connection outer disc 20 on one side outer wall of connecting block 19, it has slider 21 to connect between outer disc 20 and the connection inner disc 18 sliding connection, the welding has swivel 22 on one side outer wall of slider 21, connecting hole 23 has been seted up on one side outer wall of swivel 22, it is connected with fastening nut 24 to close soon through the screw thread on one side outer wall of connecting block 19.

The utility model discloses in: the annular air bag 11 is communicated with the piston cavity 12; ensuring that the gas in the piston chamber 12 can enter the annular bladder 11.

The utility model discloses in: the two connecting inner discs 18 are arranged, and the two connecting inner discs 18 are symmetrically arranged on the outer wall of the stop valve body 1; the installation of the stop valve body 1 is convenient.

The utility model discloses in: a sliding groove is formed in the position, close to the fastening nut 24, of the outer wall of one side of the connecting outer disc 20; it is ensured that the tightening nut 24 can be moved under the movement of the slide 21.

The utility model discloses in: the cross sections of the piston cavity 12 and the piston disc 14 are circular structures, and the diameters of the piston cavity 12 and the piston disc 14 are the same; ensuring that the piston disc 14 moves in a piston-like manner in the piston chamber 12.

The utility model discloses in: the annular air bag 11 has elastic deformation capacity; so that the annular air bag 11 is expanded and deformed after the air pressure inside the annular air bag is increased.

The working principle is as follows: when in use, the stop valve body 1 is connected with a flange on a pipeline through a connecting hole 23 formed in a rotating ring 22, when in butt joint connection, the position of the rotating ring 22 can be adjusted through the sliding of a sliding block 21 in a connecting outer disc 20 and a connecting inner disc 18, so that the connecting hole 23 is aligned with a fixed hole on the flange, finally, when the stop valve body 1 is adjusted to be vertical through bolt fixed connection, a fastening nut 24 is rotated, the fastening nut 24 is screwed into the sliding block 21 and then extruded in the connecting outer disc 20, the position of the sliding block 21 is fixed, so that the firm stability of the installation of the stop valve body 1 is ensured, when in stopping, a first hand wheel 6 is rotated, the first hand wheel 6 drives a supporting block 7 to move downwards, the supporting block 7 drives a sealing seat 8 to move downwards, the sealing seat 8 is extruded on a sealing seat ring 16 to realize the sealing of the stop valve body 1, a moving column 9 is inserted into a, the second hand wheel 15 is rotated, the second hand wheel 15 drives the second screw 13 to rotate, the second screw 13 is connected with the first screw 5 in a screwing mode, the second screw 13 drives the piston disc 14 to move downwards in the piston cavity 12, air in the piston cavity 12 enters the annular air bag 11, air pressure in the annular air bag 11 is increased, the annular air bag 11 is extruded between the movable column 9 and the column sleeve 17 after being expanded and deformed, further sealing is formed, and the problem that the stop capability of the stop valve is reduced due to leakage is avoided.

In summary, the following steps: this prevent stop valve of leakage, through the removal of piston disc 14 in piston chamber 12, can be so that the atmospheric pressure increase in the annular gasbag 11, the extrusion is between removal post 9 and post cover 17 after the expansion deformation of annular gasbag 11, form further sealed, avoid appearing leaking the problem that causes the stop valve to end the ability and reduce, improve the prevent leakage ability and the choked flow ability of stop valve, slide between connecting inner disc 18 and connecting outer dish 20 through slider 21, can adjust the position of connecting hole 23 on the change 22, be convenient for follow-up accurate butt joint with the ring flange, thereby guarantee that stop valve body 1 can be in on required installation angle, be convenient for follow-up first handwheel 6 of rotation is by the operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stop valve of preventing leaking, includes stop valve body (1), its characterized in that: the top of the stop valve body (1) is fixedly connected with a first valve seat (2) through a bolt, an arc-shaped rod (3) is welded on the outer wall of one side of the first valve seat (2), a second valve seat (4) is welded on one end, far away from the first valve seat (2), of the arc-shaped rod (3), a first screw (5) is connected inside the first valve seat (2) and the second valve seat (4) in a screwing mode through threads, a first hand wheel (6) is welded on the top end of the first screw (5), a supporting block (7) is rotatably connected at the bottom end of the first screw (5), a sealing seat (8) is welded at the bottom of the supporting block (7), a moving column (9) is welded at the central position of the bottom of the sealing seat (8), an annular groove (10) is formed in the outer wall of one side of the moving column (9), and an annular air bag (11) is embedded inside the annular groove (10), a piston cavity (12) is formed in the supporting block (7) and the sealing seat (8), a second screw (13) is connected to the inside of the first screw (5) in a screwing mode through threads, a piston disc (14) is connected to the bottom end of the second screw (13) in a rotating mode, a second hand wheel (15) is welded to the top end of the second screw (13), a sealing seat ring (16) is welded to the position, close to the lower portion of the sealing seat (8), in the inside of the stop valve body (1), a column sleeve (17) is welded to the bottom of the sealing seat ring (16), a connecting inner disc (18) is welded to the outer wall of one side of the stop valve body (1), a connecting block (19) is welded to the outer wall of one side, adjacent to the stop valve body (1), of the connecting inner disc (18), a connecting outer disc (20) is welded to the outer wall of one side of the connecting block (19), and a sliding block (21) is connected between the connecting outer disc (20) and the connecting inner disc (18), the welding has swivel (22) on one side outer wall of slider (21), connecting hole (23) have been seted up on one side outer wall of swivel (22), it is connected with fastening nut (24) to close soon through the screw thread on one side outer wall of connecting block (19).

2. A leak resistant shut off valve as defined in claim 1 wherein: the annular air bag (11) is communicated with the piston cavity (12).

3. A leak resistant shut off valve as defined in claim 1 wherein: the two connecting inner discs (18) are arranged on the outer wall of the stop valve body (1) symmetrically, and the two connecting inner discs (18) are arranged on the outer wall of the stop valve body (1).

4. A leak resistant shut off valve as defined in claim 1 wherein: a sliding groove is formed in the position, close to the fastening nut (24), of the outer wall of one side of the connecting outer disc (20).

5. A leak resistant shut off valve as defined in claim 1 wherein: the cross sections of the piston cavity (12) and the piston disc (14) are circular structures, and the diameters of the piston cavity (12) and the piston disc (14) are the same.

6. A leak resistant shut off valve as defined in claim 1 wherein: the annular air bag (11) has elastic deformation capacity.