CN212775889U

CN212775889U - Low-temperature special valve capable of preventing leakage

Info

Publication number: CN212775889U
Application number: CN202021580958.XU
Authority: CN
Inventors: 甘玉如
Original assignee: Zigong Feiqiu Special Valve Mfg Co ltd
Current assignee: Zigong Feiqiu Special Valve Mfg Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-03-23
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to the technical field of valves, and discloses an anti-leakage low-temperature special valve, which comprises a valve body, a communicating pipe is integrally processed on the left side and the right side of the valve body, a flange plate is welded at one end of the communicating pipe, which is far away from the valve body, a sealing ring is embedded in the flange plate and is connected with the inner wall of the flange plate in a sliding way, and a valve core is arranged in the inner cavity of the valve body; the utility model discloses a valve body, ring flange, sealing ring, case, disk seat, spacing dish, connection pad and the sealed setting of filling up have and be convenient for adjust the flow, can effectively guarantee the leakproofness of valve interface, avoid the valve to appear leaking, and then advantage that can long-term safe use, it is comparatively simple to have solved the valve structure of using at present, is not convenient for adjust the flow of valve, and the sealing performance of valve is relatively poor, leads to the valve to appear leaking easily, has increased the problem of the valve maintenance work degree of difficulty.

Description

Low-temperature special valve capable of preventing leakage

Technical Field

The utility model relates to the technical field of valves, specifically be a prevent outer low temperature special type valve that leaks.

Background

Along with the continuous development in the valve field, the safety protection problem in the valve use receives more and more attention, in the low temperature valve, because operating temperature is lower, under the low temperature state, the volume shrinkage can take place for the packing seal, causes the sealed department of packing to reveal, in addition, because the low temperature valve is used for the transport of liquefied gas more, can form airtight space at some times at the inner chamber of valve gap, when the temperature variation, the liquefied gas in the airtight space can take place gasification and inflation, thereby cause great pressure to the valve gap and lead to its deformation to take place the medium leakage.

The valve structure that uses at present is comparatively simple, is not convenient for adjust the flow of valve, and the sealing performance of valve is relatively poor, leads to the valve to appear leaking easily, has increased the valve and has maintained the work degree of difficulty, has brought the inconvenience for the user, and we propose one kind for this reason and be convenient for adjust the flow, can effectively guarantee the leakproofness of valve interface, avoid the valve to appear leaking, and then the special valve that can long-term safe handling solves this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent outer low temperature special valve that leaks possesses and is convenient for adjust the flow, can effectively guarantee the leakproofness of valve interface, avoids the valve leakage to appear, and then the advantage that can long-term safe handling has solved the valve structure that uses at present comparatively simply, is not convenient for adjust the flow of valve, and the sealing performance of valve is relatively poor, leads to the valve to appear leaking easily, has increased the problem of the valve maintenance work degree of difficulty.

In order to achieve the above object, the utility model provides a following technical scheme: the anti-leakage low-temperature special valve comprises a valve body, wherein communicating pipes are integrally processed on the left side and the right side of the valve body, one ends, far away from the valve body, of the communicating pipes are welded with flange plates, sealing rings are embedded inside the flange plates and are in sliding connection with the inner walls of the flange plates, a valve core is arranged in an inner cavity of the valve body, a valve seat is arranged at the bottom of the inner cavity of the valve body and located at the bottom of the valve core, a valve rod is rotatably connected to the top of the valve core through a bearing seat, a connecting seat is arranged at the top of the valve body and is communicated with the inner cavity of the valve body, a barrel is bolted to the top of the connecting seat, an internal thread is arranged on the inner wall of the barrel, a valve cover is embedded at the top of the barrel and is in threaded connection with the barrel through the internal thread, compression springs are bolted on the left side and the right side of the bottom of the limiting disc, connecting discs are bolted on the bottoms of the compression springs, and sealing gaskets are bonded on the bottoms of the connecting discs through adhesives.

Preferably, the bottom welding of valve body has the mount pad, and the mount pad extends to both sides around the valve body, the mounting hole has been seted up on the surface of mount pad, the mounting hole is the symmetric distribution, and the inner wall of mounting hole is provided with the screw thread.

Preferably, the valve seat is tightly attached to the inner wall of the valve body, an arc-shaped groove is formed in the center of the top of the valve seat, the bottom of the valve core is arc-shaped, and the valve core is connected with the inner wall of the arc-shaped groove in a sliding mode.

Preferably, threaded holes are formed in the surface of the flange plate, the number of the threaded holes is a plurality, the threaded holes are distributed in an annular shape, a rotary table is fixedly mounted at the top end of the valve rod, and anti-slip strips are arranged on the side faces of the rotary table.

Preferably, the connecting seat is the same with the internal diameter of barrel, and sealed the pad respectively with the inner wall sliding connection of connecting seat and barrel, sealing ring and sealed pad all adopt phenyl silicone rubber to make.

Preferably, the surface of the valve rod is provided with threads, the valve rod is in threaded connection with the valve cover, and the center of the limiting disc is in threaded connection with the valve rod by adopting a hexagonal nut structure.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a valve body, ring flange, sealing ring, case, disk seat, spacing dish, connection pad and the sealed setting of filling up have and be convenient for adjust the flow, can effectively guarantee the leakproofness of valve interface, avoid the valve to appear leaking, and then advantage that can long-term safe use, it is comparatively simple to have solved the valve structure of using at present, is not convenient for adjust the flow of valve, and the sealing performance of valve is relatively poor, leads to the valve to appear leaking easily, has increased the problem of the valve maintenance work degree of difficulty.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic top view of the structure of the present invention;

fig. 4 is a perspective view of the present invention.

In the figure: 1. a valve body; 2. a communicating pipe; 3. a flange plate; 4. a seal ring; 5. a valve core; 6. a valve seat; 7. a valve stem; 8. a connecting seat; 9. a barrel; 10. a valve cover; 11. a limiting disc; 12. a compression spring; 13. a connecting disc; 14. a gasket; 15. a mounting seat; 16. mounting holes; 17. an arc-shaped slot; 18. a threaded hole; 19. a turntable.

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. 1-4, an anti-leakage low-temperature special valve comprises a valve body 1, a communicating pipe 2 is integrally formed on the left side and the right side of the valve body 1, a flange 3 is welded on one end of the communicating pipe 2 far away from the valve body 1, a sealing ring 4 is embedded inside the flange 3, the sealing ring 4 is slidably connected with the inner wall of the flange 3, a valve core 5 is arranged in the inner cavity of the valve body 1, a valve seat 6 is arranged at the bottom of the valve core 5 in the inner cavity of the valve body 1, a valve rod 7 is rotatably connected with the top of the valve core 5 through a bearing seat, a connecting seat 8 is arranged at the top of the valve body 1, the connecting seat 8 is communicated with the inner cavity of the valve body 1, a cylinder body 9 is bolted at the top of the connecting seat 8, an internal thread is arranged on the inner wall of the cylinder body 9, a valve cover, and the valve rod 7 runs through the top of the valve cover 10, the surface of the valve rod 7 is provided with a limiting disc 11, the left side and the right side of the bottom of the limiting disc 11 are respectively bolted with a compression spring 12, the bottom of the compression spring 12 is bolted with a connecting disc 13, the bottom of the connecting disc 13 is bonded with a sealing gasket 14 through an adhesive, the valve body 1 is adopted, the flange disc 3, the sealing ring 4, the valve core 5, the valve seat 6, the limiting disc 11, the connecting disc 13 and the sealing gasket 14 are arranged, the valve has the advantages of being convenient to adjust the flow, effectively guaranteeing the sealing performance of a valve interface, avoiding the leakage of the valve, and being safe to use for a long time, and the problems that the structure of the valve used at present is simple, the flow of the valve is not convenient to adjust, the sealing performance of the valve.

Referring to fig. 3 and 4, the mounting seat 15 is welded at the bottom of the valve body 1, the mounting seat 15 extends to the front side and the rear side of the valve body 1, mounting holes 16 are formed in the surface of the mounting seat 15, the mounting holes 16 are symmetrically distributed, threads are arranged on the inner wall of each mounting hole 16, and the mounting seat 15 and the mounting holes 16 are arranged to fix the valve and prevent the position of the valve from deviating.

Referring to fig. 1, the valve seat 6 is tightly attached to the inner wall of the valve body 1, an arc-shaped groove 17 is formed in the center of the top of the valve seat 6, the bottom of the valve element 5 is arc-shaped, the valve element 5 is slidably connected to the inner wall of the arc-shaped groove 17, and the arc-shaped groove 17 is formed to increase the sealing performance between the valve element 5 and the valve seat 6 and prevent a fluid medium from passing through the valve element 5.

Referring to fig. 1 and 4, threaded holes 18 are formed in the surface of the flange plate 3, the number of the threaded holes 18 is several, the threaded holes 18 are distributed annularly, a rotary plate 19 is fixedly mounted at the top end of the valve rod 7, anti-slip strips are arranged on the side surface of the rotary plate 19, the threaded holes 18 and the rotary plate 19 are arranged, butt joint between the valve and the pipeline is facilitated, and convenience is brought to adjustment of flow inside the valve.

Referring to fig. 1 and 2, the inner diameters of the connecting seat 8 and the cylinder 9 are the same, the sealing gasket 14 is slidably connected to the inner walls of the connecting seat 8 and the cylinder 9, and the sealing ring 4 and the sealing gasket 14 are made of phenyl silicone rubber.

Referring to fig. 1-3, the surface of the valve rod 7 is provided with threads, the valve rod 7 is in threaded connection with the valve cap 10, and the center of the limiting disc 11 is in a hexagon nut structure and in threaded connection with the valve rod 7, so that the limiting disc 11 can be conveniently mounted and dismounted, and further, the valve can be conveniently maintained.

The working principle is as follows: when the valve is used, firstly, the valve is installed and fixed through the installation seat 15 and the installation hole 16, then the conveying pipeline is butted with the valve through the flange plate 3, the sealing ring 4 is tightly jointed with the pipeline, further, the condition of leakage of a fluid medium can be prevented, when the flow of the valve needs to be adjusted, the control turntable 19 rotates, the turntable 19 can drive the valve rod 7 to rotate, further, the valve rod 7 can be enabled to move upwards through the valve cover 10, then, the valve core 5 and the valve rod 7 synchronously move, the valve core 5 and the inner wall of the connecting seat 8 slide relatively, the sealing gasket 14 is jointed with the valve core 5 under the action of the compression spring 12, further, the sealing effect can be achieved, the fluid medium is prevented from leaking out through a gap between the valve core 5 and the connecting seat 8, when the valve needs to be closed, the turntable 19 reversely rotates, further, the valve core, until the valve core 5 is completely butted with the arc-shaped groove 17, thereby preventing the fluid medium from leaking when the valve is closed.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. The utility model provides a prevent outer low temperature special type valve that leaks, includes valve body (1), its characterized in that: the valve is characterized in that the left side and the right side of the valve body (1) are integrally processed with communicating pipes (2), one ends, far away from the valve body (1), of the communicating pipes (2) are welded with flange plates (3), sealing rings (4) are embedded inside the flange plates (3), the sealing rings (4) are connected with the inner walls of the flange plates (3) in a sliding mode, a valve core (5) is arranged in an inner cavity of the valve body (1), a valve seat (6) is arranged in the inner cavity of the valve body (1) and located at the bottom of the valve core (5), the top of the valve core (5) is connected with a valve rod (7) in a rotating mode through a bearing seat, a connecting seat (8) is arranged at the top of the valve body (1), the connecting seat (8) is communicated with the inner cavity of the valve body (1), a barrel body (9) is bolted at the top of the connecting seat, the valve cover (10) is in threaded connection with the cylinder body (9) through internal threads, the valve rod (7) is located at the center of the connecting seat (8) and the center of the cylinder body (9), the valve rod (7) penetrates through the top of the valve cover (10), the surface of the valve rod (7) is provided with a limiting disc (11), compression springs (12) are bolted to the left side and the right side of the bottom of the limiting disc (11), a connecting disc (13) is bolted to the bottom of the compression springs (12), and a sealing pad (14) is bonded to the bottom of the connecting disc (13) through an adhesive.

2. The special external leakage prevention valve as claimed in claim 1, wherein: the bottom welding of valve body (1) has mount pad (15), and both sides around mount pad (15) extend to valve body (1), mounting hole (16) have been seted up on the surface of mount pad (15), mounting hole (16) are symmetric distribution, and the inner wall of mounting hole (16) is provided with the screw thread.

3. The special external leakage prevention valve as claimed in claim 1, wherein: the valve seat (6) is tightly attached to the inner wall of the valve body (1), an arc-shaped groove (17) is formed in the center of the top of the valve seat (6), the bottom of the valve core (5) is arc-shaped, and the valve core (5) is connected with the inner wall of the arc-shaped groove (17) in a sliding mode.

4. The special external leakage prevention valve as claimed in claim 1, wherein: threaded holes (18) are formed in the surface of the flange plate (3), the number of the threaded holes (18) is a plurality, the threaded holes (18) are distributed annularly, a rotary table (19) is fixedly mounted at the top end of the valve rod (7), and anti-slip strips are arranged on the side faces of the rotary table (19).

5. The special external leakage prevention valve as claimed in claim 1, wherein: the inner diameters of the connecting seat (8) and the barrel body (9) are the same, the sealing gasket (14) is in sliding connection with the inner walls of the connecting seat (8) and the barrel body (9) respectively, and the sealing ring (4) and the sealing gasket (14) are made of phenyl silicone rubber.

6. The special external leakage prevention valve as claimed in claim 1, wherein: the surface of the valve rod (7) is provided with threads, the valve rod (7) is in threaded connection with the valve cover (10), and the center of the limiting disc (11) is in threaded connection with the valve rod (7) through a hexagonal nut structure.