CN216158327U

CN216158327U - Leak-proof stop valve

Info

Publication number: CN216158327U
Application number: CN202122208980.2U
Authority: CN
Inventors: 于田; 孙志远; 刘学飞
Original assignee: Henan Shangdie Valve Co ltd
Current assignee: Henan Shangdie Valve Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-01
Anticipated expiration: 2031-09-13

Abstract

The utility model provides a leakage-proof stop valve, which belongs to the technical field of stop valves and comprises a valve body and a valve rod, wherein a boss is fixedly connected to the inner surface of the valve body, a fixing cover is fixedly connected to the upper surface of the valve body, an end cover is detachably connected to the upper surface of the fixing cover, a gasket is arranged between the end cover and the fixing cover, a fixing cylinder is fixedly connected to the upper surface of the end cover, the valve rod is installed in the fixing cylinder, a disc is fixedly connected to the bottom of the valve rod, and a valve clack is installed on the disc. Through the rotation connection of the disc and the valve clack that set up, can drive the in-process that the valve clack moved down at the rotation valve rod, can not produce direct rotatory friction between valve clack and the boss, consequently reduced the wearing and tearing of valve clack, through utilizing fastener to carry out the connection to disc and valve clack, can be convenient make its connect and break off to the inconvenient problem of change accessory after having solved among the prior art valve clack position and producing wearing and tearing easily.

Description

Leak-proof stop valve

Technical Field

The utility model belongs to the technical field of stop valves, and particularly relates to a leakage-proof stop valve.

Background

The stop valve is also called as a stop valve, is a valve which is widely used, is popular because the friction force between sealing surfaces in the opening and closing process is small, is durable, has small opening difficulty, is easy to manufacture, is convenient to maintain, is suitable for medium and low pressure, is also suitable for high pressure, the closing principle of the stop valve depends on the pressure of a valve rod, so that the sealing surface of a valve clack is tightly attached to the sealing surface of a valve seat to prevent medium circulation, the existing stop valves are classified according to the direction of a channel and according to the position of threads on the valve rod, the manufacturers producing the stop valves in China are more at present, the connection sizes are mostly not uniform, but the principles of various stop valves are basically the same, the most important stop valve has good sealing property in the working process, after the stop valve is used for a long time, the anti-leakage structure is abraded, so that the anti-leakage effect is reduced, and the working effect of the stop valve is influenced, liquid leakage is easily generated, and thus accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a leakage-proof stop valve, which aims to solve the problems that the valve clack part is easy to wear and the parts are inconvenient to replace after being worn in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a leak protection stop valve, includes valve body and valve rod, the internal surface fixedly connected with boss of valve body, the fixed lid of last fixed surface connected with of valve body, the upper surface of fixed lid can be dismantled and is connected with the end cover, be provided with the packing ring between end cover and the fixed lid, the last fixed surface of end cover is connected with solid fixed cylinder, the valve rod is installed in solid fixed cylinder, the bottom fixedly connected with disc of valve rod, install the valve clack on the disc, connect through fastener between disc and the valve clack, and be connected for rotating between disc and the valve clack.

In order to achieve the function of connecting the disc and the valve clack, the fastening device preferably comprises a fixing ring mounted on the valve clack, the fixing ring and the valve clack are fixedly connected through screws, and the disc is connected with the valve clack through the fixing ring.

In order to enable the leakproof stop valve to achieve the sealing effect at the valve clack, as a preferable mode of the utility model, an air cushion ring is fixedly connected to the lower surface of the valve clack, and the vertical projection of the air cushion ring is overlapped with the groove on the boss.

In order to enable the leakproof stop valve to achieve the sealing effect at the valve rod, as a preferable mode of the utility model, the top end of the fixed cylinder is fixedly connected with a shell, the shell is internally provided with a filler, and the inner wall of the filler is tightly contacted with the outer surface of the valve rod.

In order to enable the leakage-proof stop valve to achieve the function of turnover maintenance, as a preferable mode of the utility model, the fixed cover and the end cover are detachably connected through bolts, the outer surface of the valve rod and the inner wall of the fixed cylinder are both provided with threads, and the valve rod and the fixed cylinder are connected through the threads.

In order to enable the leakage-proof stop valve to achieve the durable effect, the filler is preferably made of wear-resistant rubber with good toughness and wear resistance, the inner wall of the filler is in interference fit with the outer surface of the valve rod, and the top end of the valve rod is fixedly connected with the rotating disc.

Compared with the prior art, the utility model has the beneficial effects that:

1. this leak protection stop valve is connected through the rotation of the disc that sets up and valve clack, can drive the in-process that the valve clack moved down at the rotation valve rod, can not produce direct rotatory friction between valve clack and the boss, consequently reduced the wearing and tearing of valve clack, through utilizing fastener to carry out the connection to disc and valve clack, can be convenient make its connect and break off to valve clack position produces wearing and tearing easily among the prior art and changes the inconvenient problem of accessory after wearing and tearing.

2. This leak protection stop valve through the filler that sets up, can make and seal valve rod department, can seal between valve clack and the boss through the air cushion ring that sets up, improves from the leakproofness that makes whole the device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic axial cross-sectional view of an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to an embodiment of the present invention;

fig. 4 is a schematic front sectional view of an embodiment of the present invention.

In the figure: 1. a valve body; 2. a bolt; 3. a fixed cylinder; 4. a valve stem; 5. rotating the disc; 6. a housing; 7. an end cap; 8. a fixed cover; 9. a gasket; 10. a filler; 11. a fixing ring; 12. a screw; 13. a boss; 14. a disc; 15. a valve flap; 16. an air cushion ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a leak protection stop valve, including valve body 1 and valve rod 4, the internal surface fixedly connected with boss 13 of valve body 1, the fixed lid 8 of last fixed surface fixedly connected with of valve body 1, the upper surface of fixed lid 8 can be dismantled and is connected with end cover 7, be provided with packing ring 9 between end cover 7 and the fixed lid 8, the last fixed surface fixedly connected with of end cover 7 is fixed section of thick bamboo 3, valve rod 4 is installed in fixed section of thick bamboo 3, the bottom fixedly connected with disc 14 of valve rod 4, install valve clack 15 on the disc 14, connect through fastener between disc 14 and the valve clack 15, and be connected for rotating between disc 14 and the valve clack 15.

In the embodiment of the utility model, the valve rod 4 is rotated to enable the valve rod 4 to drive the valve clack 15 to move downwards, and direct rotating friction cannot be generated between the valve clack 15 and the boss 13 due to the rotating connection between the disc 14 and the valve clack 15, so that the abrasion of the valve clack 15 is reduced, and the disc 14 and the valve clack 15 can be conveniently connected and disconnected by utilizing a fastening device to connect.

Preferably, the fastening device comprises a fixing ring 11 mounted on the valve flap 15, the fixing ring 11 and the valve flap 15 are fixedly connected through a screw 12, the disk 14 penetrates through the fixing ring 11 and is connected with the valve flap 15, and the disk 14 and the valve flap 15 can be connected through the fixing ring 11.

Further, the lower surface of the valve clack 15 is fixedly connected with an air cushion ring 16, the vertical projection of the air cushion ring 16 coincides with the groove on the boss 13, and the valve clack 15 and the boss 13 can be sealed through the arranged air cushion ring 16, so that water leakage is prevented.

Further, the top end of the fixed cylinder 3 is fixedly connected with a shell 6, a filler 10 is arranged inside the shell 6, the inner wall of the filler 10 is in close contact with the outer surface of the valve rod 4, and water leakage at the position of the valve rod 4 can be prevented through the arranged filler 10.

Specifically, can dismantle the connection through bolt 2 between fixed lid 8 and the end cover 7, the surface of valve rod 4 and the inner wall of solid fixed cylinder 3 all are provided with the screw thread, connect through the screw thread between valve rod 4 and the solid fixed cylinder 3, can dismantle the connection through utilizing bolt 2, can reach the effect of convenient maintenance and renewal accessory, be threaded connection between valve rod 4 and the solid fixed cylinder 3 through setting up, can control opening and shutting of valve clack 15 through rotatory valve rod 4.

Specifically, filler 10 is the good wear-resisting rubber material of toughness, is interference fit between the inner wall of filler 10 and the surface of valve rod 4, and the top fixedly connected with rolling disc 5 of valve rod 4 through chooseing for use wear-resisting rubber as the material of filler 10, can reach durable's effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a leak protection stop valve, includes valve body (1) and valve rod (4), its characterized in that: the interior fixed surface of valve body (1) is connected with boss (13), the last fixed surface of valve body (1) is connected with fixed lid (8), the upper surface of fixed lid (8) can be dismantled and is connected with end cover (7), be provided with packing ring (9) between end cover (7) and fixed lid (8), the last fixed surface of end cover (7) is connected with solid fixed cylinder (3), install in solid fixed cylinder (3) valve rod (4), the bottom fixedly connected with disc (14) of valve rod (4), install valve clack (15) on disc (14), connect through fastener between disc (14) and the valve clack (15), and be connected for rotating between disc (14) and valve clack (15).

2. The leak-proof shut-off valve as defined in claim 1, wherein: the fastening device comprises a fixing ring (11) installed on the valve clack (15), the fixing ring (11) is fixedly connected with the valve clack (15) through a screw (12), and the disc (14) penetrates through the fixing ring (11) and is connected with the valve clack (15).

3. The leak-proof shut-off valve as defined in claim 1, wherein: the lower surface of the valve clack (15) is fixedly connected with an air cushion ring (16), and the vertical projection of the air cushion ring (16) is superposed with the groove on the boss (13).

4. The leak-proof shut-off valve as defined in claim 1, wherein: the top end fixedly connected with casing (6) of fixed section of thick bamboo (3), the inside of casing (6) is provided with filler (10), the inner wall of filler (10) and the surface in close contact with of valve rod (4).

5. The leak-proof shut-off valve as defined in claim 1, wherein: the connection of dismantling through bolt (2) between fixed lid (8) and end cover (7), the surface of valve rod (4) and the inner wall of a fixed section of thick bamboo (3) all are provided with the screw thread, connect through the screw thread between valve rod (4) and a fixed section of thick bamboo (3).

6. The leak-proof shut-off valve as defined in claim 4, wherein: the packing (10) is wear-resisting rubber material that toughness is good wear-resisting, be interference fit between the inner wall of packing (10) and the surface of valve rod (4), the top fixedly connected with rolling disc (5) of valve rod (4).