CN218031505U

CN218031505U - Self-sealing gate valve

Info

Publication number: CN218031505U
Application number: CN202221345919.0U
Authority: CN
Inventors: 庞士军; 司东琴
Original assignee: Beijing Good Valve Industry Group Co ltd
Current assignee: Beijing Good Valve Industry Group Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-12-13
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a self sealss gate valve relates to gate valve technical field, this self sealss gate valve, including rotatory handle, the bottom fixed mounting of rotatory handle has a screw thread axle, the outside of screw thread axle is provided with a screw thread section of thick bamboo, the bottom fixed mounting of a screw thread section of thick bamboo has the sealed tube, the valve body has been cup jointed to the bottom of sealed tube, the inside of valve body is provided with sealing mechanism, the outside of valve body is provided with the go-between, and sealing mechanism includes strong magnet, the sealed piece of magnetism and seal assembly, strong magnet fixed mounting is at the middle part of valve body, the sealed piece fixed mounting of magnetism is at the inner wall of valve body. Come to compress the inside gas of compression chamber through setting up the piston to the realization will seal the inner wall laminating of flashboard and valve body, the cooperation of rethread magnetic path one and strong magnet is used, thereby realizes self-sealing's effect, thereby avoids the friction to cause the wearing and tearing of sealed flashboard to lead to the leakproofness variation.

Description

Self-sealing gate valve

Technical Field

The utility model relates to a gate valve technical field specifically is a self sealss gate valve.

Background

The gate valve is an opening and closing member gate plate, the movement direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be opened and closed completely, the gate valve is sealed through the contact of the valve body and the gate plate, so that the liquid on the inner wall of the pipeline is cut off, and the gate valve is mostly applied between two adjacent pipelines to be connected, so that the circulation of the pipelines is controlled.

Because the gate valve can cause the wearing and tearing of sealed flashboard at the in-process that uses many times to further cause the poor problem of sealed degree, lead to liquid to flow out along the clearance, consequently need through continuous maintenance change to the gate valve, thereby increased cost of maintenance, and dismantlement many times leads to whole sealing performance variation easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a self sealss gate valve possesses the advantage that the friction that reduces the gate valve between the operation simplicity improves the leakproofness to solve the easy wearing and tearing of traditional gate valve and lead to the poor problem of leakproofness.

For the purpose that the realization reduces the friction of gate valve between simply and improves the leakproofness, the utility model provides a following technical scheme: the utility model provides a self sealss gate valve, includes rotatory handle, the bottom fixed mounting of rotatory handle has the screw thread axle, the outside of screw thread axle is provided with a screw thread section of thick bamboo, the bottom fixed mounting of a screw thread section of thick bamboo has the gland, the valve body has been cup jointed to the bottom of gland, the inside of valve body is provided with sealing mechanism, the outside of valve body is provided with the go-between.

As a preferred technical scheme of the utility model, sealing mechanism includes strong magnet, the sealed piece of magnetism and seal assembly, strong magnet fixed mounting is at the middle part of valve body, the sealed piece fixed mounting of magnetism is at the inner wall of valve body.

As a preferred technical scheme of the utility model, seal assembly includes current limiting column, through-hole, two magnetic paths, current limiting column movable mounting is at the inner wall of valve body, the surface at current limiting column is seted up to the through-hole, two fixed mounting of magnetic path are in the bottom of two magnetic paths.

As an optimal technical scheme of the utility model, seal assembly still includes compression chamber, piston, sealed flashboard, magnetic path one, reset spring, the middle part at the current-limiting column is seted up in the compression chamber, piston movable mounting is at the inner wall in compression chamber, the top and the threaded spindle fixed mounting of piston, sealed flashboard movable mounting is at the inner wall in compression chamber, a magnetic path fixed mounting is at the middle part of sealed flashboard, reset spring's one end fixed mounting is in the inboard of sealed flashboard, reset spring's the other end and the inner wall fixed connection in compression chamber.

As a preferred technical scheme of the utility model, the inboard magnetic pole of strong magnet is opposite with the magnetic pole in the magnetic path outside and the quantity of magnetic path is two sets of and symmetric distribution.

As an optimized technical solution of the present invention, the magnetic pole at the top of the magnetic sealing block is the same as the polarity of the opposite and opposite magnetic pole at this moment at the bottom of the magnetic block two.

As a preferred technical scheme of the utility model, the quantity of go-between is two sets of and symmetric distribution and offers the screw thread in the inner wall of both ends of valve body and go-between.

Compared with the prior art, the utility model provides a self sealss gate valve possesses following beneficial effect:

1. this self sealss gate valve drives the screw spindle through setting up rotatory handle and rotates, thereby the screw spindle drives the restriction post again and seals the effect that realizes damming to the valve body.

2. This self sealss gate valve comes to compress the gas of compression intracavity portion through setting up the piston to the realization will seal the inner wall laminating of flashboard and valve body, the cooperation of rethread magnetic path one and strong magnet is used, thereby realizes self-sealing's effect, thereby avoids the friction to cause the wearing and tearing of sealed flashboard to lead to the leakproofness variation.

Drawings

Fig. 1 is a schematic view of a self-sealing gate valve of the present invention;

FIG. 2 is an exploded view of the valve body of the present invention;

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

fig. 4 is a schematic sectional view of the structure of the current-limiting column of the present invention.

In the figure: 1. rotating the handle; 2. a threaded barrel; 3. a sealing tube; 4. a valve body; 5. a connecting ring; 6. a threaded shaft; 7. a flow-limiting column; 8. a strong magnet; 9. a magnetic seal block; 10. a compression chamber; 11. a piston; 12. a through hole; 13. sealing the gate plate; 14. a first magnetic block; 15. a return spring; 16. and a second magnetic block.

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.

Please refer to fig. 1-4, the utility model discloses a self-sealing gate valve, including rotatory handle 1, the bottom fixed mounting of rotatory handle 1 has a screw shaft 6, and the outside of screw shaft 6 is provided with a screw thread section of thick bamboo 2, and the bottom fixed mounting of a screw thread section of thick bamboo 2 has a sealed tube 3, and valve body 4 has been cup jointed to the bottom of sealed tube 3, and the inside of valve body 4 is provided with sealing mechanism, and the outside of valve body 4 is provided with go-between 5, and the quantity of go-between 5 is two sets of and symmetric distribution and has seted up the screw thread in the both ends of valve body 4 and the inner wall of go-between 5.

Specifically, sealing mechanism includes strong magnet 8, magnetic seal block 9 and seal assembly, strong magnet 8 fixed mounting is at the middle part of valve body 4, magnetic seal block 9 fixed mounting is at the inner wall of valve body 4, the magnetic pole of strong magnet 8 inboard is opposite with the magnetic pole in the magnetic block 14 outside and the quantity of magnetic block 14 is two sets of and symmetric distribution, the magnetic pole at magnetic seal block 9 top is the same with the polarity of relative and relative magnetic pole this moment of two 16 bottoms of magnetic block, wherein through setting up strong magnet 8, magnetic seal block 9 mainly used makes magnetic block 14 adsorb with strong magnet 8, thereby it guarantees the leakproofness to make magnetic seal block 9 adsorb with the bottom of current-limiting post 7 again.

Further, the sealing assembly comprises a flow limiting column 7, a through hole 12 and a magnetic block II 16, the flow limiting column 7 is movably mounted on the inner wall of the valve body 4, the through hole 12 is formed in the surface of the flow limiting column 7, the magnetic block II 16 is fixedly mounted at the bottom of the magnetic block II 16, the sealing assembly further comprises a compression cavity 10, a piston 11, a sealing flashboard 13, a magnetic block I14 and a return spring 15, the compression cavity 10 is formed in the middle of the flow limiting column 7, the piston 11 is movably mounted on the inner wall of the compression cavity 10, the piston 11 compresses the atmosphere inside the compression cavity 10 to expand the sealing flashboard 13 outwards to achieve interception, the top of the piston 11 is fixedly mounted with the threaded shaft 6, the sealing flashboard 13 is movably mounted on the inner wall of the compression cavity 10, the magnetic block I14 is fixedly mounted in the middle of the sealing flashboard 13, one end of the return spring 15 is fixedly mounted on the inner side of the sealing flashboard 13, the other end of the return spring 15 is fixedly connected with the inner wall of the compression cavity 10, and the return spring 15 is mainly used for traction and return of the sealing flashboard 13.

The utility model discloses a theory of operation and use flow: when the sealing device is used, the rotating handle 1 is rotated clockwise to drive the threaded shaft 6 to rotate along the inner walls of the threaded cylinder 2 and the sealing pipe 3, so that the piston 11 is further driven to rotate, the piston 11 compresses gas inside the compression cavity 10, when the rotating handle 1 rotates to the maximum position, the current limiting column 7 is attached to the bottom of the magnetic sealing block 9, one end of the current limiting column 7 blocks a flow hole of the valve body 4, the piston 11 extrudes the gas inside the compression cavity 10, so that the pressure inside the compression cavity 10 is increased, the sealing flashboard 13 expands towards two ends and is closely attached to the inner wall of the valve body 4, when the sealing flashboard 13 is attached to the inner wall of the valve body 4, one attraction force 14 is opposite to the magnetic pole of the strong magnet flashboard 8, and the magnetic block is received, so that the sealing flashboard 13 is further attached to the inner wall of the valve body 4, and the sealing performance of the sealing flashboard 13 is guaranteed.

It should be noted that, in this document, terms such as "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 a … …" does not exclude the presence of another identical element 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 various 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 self-sealing gate valve comprises a rotating handle (1), and is characterized in that: the bottom fixed mounting of rotatory handle (1) has screw shaft (6), the outside of screw shaft (6) is provided with a screw thread section of thick bamboo (2), the bottom fixed mounting of a screw thread section of thick bamboo (2) has sealed tube (3), valve body (4) have been cup jointed to the bottom of sealed tube (3), the inside of valve body (4) is provided with sealing mechanism, the outside of valve body (4) is provided with go-between (5).

2. A self-sealing gate valve as defined in claim 1, wherein: sealing mechanism includes strong magnet (8), magnetism seal block (9) and seal assembly, strong magnet (8) fixed mounting is in the middle part of valve body (4), magnetism seal block (9) fixed mounting is in the inner wall of valve body (4).

3. A self-sealing gate valve as claimed in claim 2, wherein: the sealing assembly comprises a flow limiting column (7), a through hole (12) and a second magnetic block (16), wherein the flow limiting column (7) is movably arranged on the inner wall of the valve body (4), the through hole (12) is formed in the surface of the flow limiting column (7), and the second magnetic block (16) is fixedly arranged at the bottom of the second magnetic block (16).

4. A self-sealing gate valve as defined in claim 3, wherein: the sealing assembly further comprises a compression cavity (10), a piston (11), a sealing flashboard (13), a first magnetic block (14) and a return spring (15), the middle of the flow limiting column (7) is arranged in the compression cavity (10), the piston (11) is movably arranged on the inner wall of the compression cavity (10), the top of the piston (11) is fixedly arranged with a threaded shaft (6), the sealing flashboard (13) is movably arranged on the inner wall of the compression cavity (10), the first magnetic block (14) is fixedly arranged on the middle of the sealing flashboard (13), one end of the return spring (15) is fixedly arranged on the inner side of the sealing flashboard (13), and the other end of the return spring (15) is fixedly connected with the inner wall of the compression cavity (10).

5. A self-sealing gate valve as defined in claim 2, wherein: the magnetic poles on the inner side of the strong magnet (8) are opposite to the magnetic poles on the outer side of the first magnetic blocks (14), and the number of the first magnetic blocks (14) is two and the two magnetic blocks are symmetrically distributed.

6. A self-sealing gate valve as claimed in claim 2, wherein: the magnetic pole at the top of the magnetic sealing block (9) and the opposite magnetic pole at the bottom of the magnetic block II (16) have the same polarity.

7. A self-sealing gate valve as defined in claim 1, wherein: the number of the connecting rings (5) is two, the connecting rings are symmetrically distributed at two ends of the valve body (4), and the inner wall of each connecting ring (5) is provided with threads.