CN218971929U

CN218971929U - Lock nut improved socket type soft sealing gate valve

Info

Publication number: CN218971929U
Application number: CN202223022836.0U
Authority: CN
Inventors: 张瑛
Original assignee: Xiamen Ametek Technology Co ltd
Current assignee: Xiamen Ametek Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-05-05
Anticipated expiration: 2033-03-02

Abstract

The utility model relates to the technical field of soft sealing gate valves, in particular to a socket joint type soft sealing gate valve with an improved lock nut. According to the utility model, the screw locking mode of a general product is changed, so that the upper sealing part in the valve cover is completely coated with the epoxy powder coating, and the anti-corrosion performance is further improved; meanwhile, through the design of the swing type structure, the structure function is optimized, materials are saved to a certain extent, and the reliability of products is improved.

Description

Lock nut improved socket type soft sealing gate valve

Technical Field

The utility model relates to the technical field of soft sealing gate valves, in particular to a socket type soft sealing gate valve with an improved lock nut.

Background

The soft sealing sluice valve is characterized in that an opening and closing piece of the soft sealing sluice valve is a flashboard, the moving direction of the flashboard is perpendicular to the fluid direction, the sluice valve can only be fully opened and fully closed, the flashboard is provided with two sealing surfaces, the two sealing surfaces of the most commonly used mode sluice valve form a wedge shape, and the wedge angle can be different according to valve parameters.

The soft sealing gate valve products in the market at present are locked by utilizing a thread locking mode, and as the valve is vibrated when being opened or closed, the locking female threads of the existing soft sealing gate valve are loosened, and the vertical positioning of the valve shaft and the compaction degree of the sealing part are affected.

Disclosure of Invention

The utility model aims to provide a female locking improved socket type soft sealing gate valve, which aims to solve the problem that the compaction degree is affected due to loosening when the soft sealing gate valve is locked by a thread locking mode in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a female improved generation socket joint formula soft seal gate valve, includes the valve body, the top of valve body has the valve gap through four middle flange bolt threaded connection, and the top lid of valve gap has the shield, the inside of valve gap is provided with the valve rod, and the top of valve rod is fixed with the sleeve to telescopic top is fixed with the drive cap, the top closure that the drive cap is located the valve gap inside has the lock female, and the lock female passes through fastening bolt and the mutual threaded fastening connection of valve gap, and the junction parcel of lock female and valve gap has the anticorrosive coating, and this anticorrosive coating is used for preventing the corruption of lock female; the bottom of valve rod extends to the inside of valve body and threaded connection has the valve plate nut, and the bottom mounting of valve plate nut has the case, the inside central part cover of case is equipped with the uide bushing, and uide bushing and valve rod mutually support, the valve plate nut has valve plate rubber with the surface parcel of case.

Preferably, the top end of the transmission cap penetrates through the dustproof cover to be sleeved with a hand wheel convenient to rotate, and the hand wheel is in threaded fastening connection with the transmission cap through a locking bolt with a gasket.

Preferably, the sleeve surface below the lock nut is sleeved with two groups of bushings, and the sleeve surface and the lower part of the bushing are sleeved with O-shaped rings for leakage prevention.

Preferably, a middle pad is inlaid at the joint of the valve body and the valve cover, and the middle pad is used for preventing water leakage between the valve body and the valve cover.

Preferably, the PVC socket rubber rings are sleeved in the two ends of the valve body, and the PVC socket rubber rings are used for sealing connecting pipelines.

Preferably, the material of the anti-corrosion layer is an epoxy powder coating.

Compared with the prior art, the utility model has the beneficial effects that: according to the socket type soft sealing gate valve with the improved lock nut, the anti-corrosion layer is completely coated on the sealing part inside the valve cover by changing the thread locking mode of a general product, namely, the anti-corrosion layer is coated on the surface of the lock nut, and the anti-corrosion layer is an epoxy powder coating which can further improve the anti-corrosion performance; meanwhile, through the design of the swing type structure, the structure function is optimized, materials are saved to a certain extent, and the reliability of products is improved.

Drawings

FIG. 1 is a schematic view of a three-dimensional appearance structure of the present utility model;

FIG. 2 is a schematic view of a semi-sectional enlarged structure of the present utility model;

FIG. 3 is a schematic view of a partial cross-sectional structure of the present utility model;

fig. 4 is a partially enlarged schematic construction of the present utility model.

In the figure: 1. a valve body; 101. a middle flange bolt; 2. a valve cover; 3. a hand wheel; 31. a locking bolt; 4. a drive cap; 5. a dust cover; 51. a fastening bolt; 6. locking a nut; 61. an anti-corrosion layer; 7. an O-ring; 8. a sleeve; 9. a valve stem; 10. a middle pad; 11. a valve plate nut; 12. valve plate rubber; 13. a valve core; 14. a guide sleeve; 15. PVC socket rubber ring; 16. a bushing.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and furthermore, the terms "first", "second", "third", "up, down, left, right", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present utility model, unless explicitly stated and defined otherwise, the terms "connected", "connected" and "connected" should be interpreted broadly, and for example, may be fixedly connected, detachably connected, or integrally connected; the mechanical connection and the electrical connection can be adopted; all other embodiments, which may be directly or indirectly through intermediaries, which may be obtained by a person of ordinary skill in the art without inventive effort based on the embodiments of the present utility model are within the scope of the present utility model.

The utility model provides a structure of a socket type soft sealing gate valve with an improved lock nut, which is shown in fig. 1, 2 and 3, and comprises a valve body 1, wherein the top end of the valve body 1 is connected with a valve cover 2 through four middle flange bolts 101 in a threaded manner, a middle pad 10 is embedded at the joint of the valve body 1 and the valve cover 2, the middle pad 10 is used for preventing water leakage phenomenon between the valve body 1 and the valve cover 2, PVC socket rubber rings 15 are sleeved in the two ends of the valve body 1, the PVC socket rubber rings 15 are used for sealing a connecting pipeline, the top end of the valve cover 2 is covered with a dust cover 5, a valve rod 9 is arranged in the valve cover 2, the top end of the valve rod 9 is fixedly provided with a sleeve 8, the top end of the sleeve 8 is fixedly provided with a transmission cap 4, the top end of the transmission cap 4 penetrates through the dust cover 5 and is sleeved with a hand wheel 3 convenient to rotate, the hand wheel 3 is in threaded fastening connection with the transmission 4 through a locking bolt 31 with a gasket, the top of the transmission cap 4 is positioned in the valve cover 2, the lock nut 6 is in the inner part of the valve cover 2 is fastened and connected with the valve cover 2 through a fastening bolt 51 in a mutual threaded manner, the lock nut 6 is connected with the valve cover 6 in a sealing layer 61, the joint of the valve cover 2 and the valve cover 2 is provided with an anti-corrosion coating 61, and the anti-corrosion coating 61 is coated with the anti-corrosion layer 61 is used for preventing corrosion of the anti-corrosion coating.

During implementation, the hand wheel 3 is rotated excessively, the hand wheel 3 drives the transmission cap 4 to rotate, the valve rod 9 is driven to rotate under the action of the sleeve 8 during rotation, and the valve rod 9 is in threaded connection with the valve plate rubber 12 during rotation, so that the valve plate rubber 12 drives the valve core 13 to move up and down.

Further, as shown in fig. 2 and 4, two sets of bushings 16 are sleeved on the surface of the sleeve 8 below the lock nut 6, and an O-ring 7 for leakage prevention is sleeved on the surface of the sleeve 8 and below the bushings 16; the bottom end of the valve rod 9 extends to the inside of the valve body 1 and is in threaded connection with a valve plate nut 11, the bottom end of the valve plate nut 11 is fixedly provided with a valve core 13, a guide sleeve 14 is sleeved at the center part of the inside of the valve core 13, the guide sleeve 14 is matched with the valve rod 9, and the valve plate nut 11 and the outer surface of the valve core 13 are wrapped with valve plate rubber 12.

According to the utility model, by changing the thread locking mode of a general product, the upper sealing part in the valve cover is completely coated with the anti-corrosion layer 61, namely the surface of the lock nut 6 is coated with the anti-corrosion layer 61, and the anti-corrosion layer 61 is an epoxy powder coating, so that the anti-corrosion performance can be further improved; meanwhile, through the design of the swing type structure, the structure function is optimized, materials are saved to a certain extent, the reliability of products is improved, and in the prior art, the valve is vibrated when being opened or closed, so that the locking nut threads of the existing soft sealing gate valve are loosened, and the vertical positioning of the valve shaft and the compaction degree of the sealing part are affected.

Working principle: when the valve is used, firstly, the hand wheel 3 is rotated, the hand wheel 3 drives the transmission cap 4 to rotate, the valve rod 9 is driven to rotate under the action of the sleeve 8 during rotation, the valve rod 9 is in threaded connection with the valve plate rubber 12 during rotation, the valve plate rubber 12 drives the valve core 13 to move up and down, and accordingly the opening and closing functions of the soft sealing gate valve are achieved.

According to the utility model, by changing the thread locking mode of a general product, the upper sealing part in the valve cover is completely coated with the anti-corrosion layer 61, namely the surface of the lock nut 6 is coated with the anti-corrosion layer 61, and the anti-corrosion layer 61 is an epoxy powder coating, so that the anti-corrosion performance can be further improved; meanwhile, through the design of the swing type structure, the structure function is optimized, materials are saved to a certain extent, and the reliability of products is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a female improved generation socket joint formula soft seal gate valve of lock, includes valve body (1), its characterized in that: the top of valve body (1) has valve gap (2) through flange bolt (101) threaded connection in four, and the top lid of valve gap (2) closes there is shield (5), the inside of valve gap (2) is provided with valve rod (9), and the top of valve rod (9) is fixed with sleeve (8), and the top of sleeve (8) is fixed with drive cap (4), drive cap (4) are located the inside top closure of valve gap (2) and have lock nut (6), and lock nut (6) are through fastening bolt (51) and the mutual screw thread fastening connection of valve gap (2), and the junction parcel of lock nut (6) and valve gap (2) has anticorrosive coating (61), and this anticorrosive coating (61) are used for preventing the corruption of lock nut (6); the bottom of valve rod (9) extends to the inside of valve body (1) and threaded connection has valve plate nut (11), and the bottom mounting of valve plate nut (11) has case (13), the inside central part cover of case (13) is equipped with uide bushing (14), and uide bushing (14) and valve rod (9) cooperate each other, the surface parcel of valve plate nut (11) and case (13) has valve plate rubber (12).

2. The female improved socket and spigot soft seal gate valve of claim 1 wherein: the top of the transmission cap (4) penetrates through the dust cover (5) and is sleeved with a hand wheel (3) which is convenient to rotate, and the hand wheel (3) is in threaded fastening connection with the transmission cap (4) through a locking bolt (31) with a gasket.

3. The female improved socket and spigot soft seal gate valve of claim 1 wherein: two groups of bushings (16) are sleeved on the surface of the sleeve (8) below the lock nut (6), and an O-shaped ring (7) for leakage prevention is sleeved on the surface of the sleeve (8) and below the bushings (16).

4. The female improved socket and spigot soft seal gate valve of claim 1 wherein: the middle pad (10) is embedded at the joint of the valve body (1) and the valve cover (2), and the middle pad (10) is used for preventing water leakage between the valve body (1) and the valve cover (2).

5. The female improved socket and spigot soft seal gate valve of claim 1 wherein: the PVC socket rubber rings (15) are sleeved in the two ends of the valve body (1), and the PVC socket rubber rings (15) are used for sealing connecting pipelines.

6. The female improved socket and spigot soft seal gate valve of claim 1 wherein: the material of the anti-corrosion layer (61) is an epoxy powder coating.