CN209977505U

CN209977505U - Connecting structure for valve

Info

Publication number: CN209977505U
Application number: CN201920386215.XU
Authority: CN
Inventors: 洪镐杰
Original assignee: Jiangsu Shenghong Pump Valve Machinery Foundry Co Ltd
Current assignee: Jiangsu Davi Machinery Co., Ltd.
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-01-21
Anticipated expiration: 2029-03-26

Abstract

The utility model relates to a connection structure technical field just discloses a connection structure for valve, including valve pipeline, connecting tube, screw hole, fixing bolt, spread groove, auxiliary spring, connection plectane, clamp tight piece, spacing ring, sealing washer, cooperation groove, convex block and concave groove, the screw hole has been seted up to the inside of valve pipeline, the inside threaded connection of screw hole has the fixing bolt who runs through and extend to the connecting tube right side, the spread groove has been seted up to the inside of valve pipeline, the inner wall fixed mounting of spread groove has auxiliary spring, and auxiliary spring's right side fixed mounting has the connection plectane. This a connection structure for valve, the connection structure who has solved current valve is still not perfect enough in the leakproofness, the valve is in the connected mode when can dismantle usually with the junction of pipeline, and when the leakproofness of this kind of junction is not good enough, often leads to inside fluid to take place to reveal easily, brings inconvenient problem in the transportation for fluid.

Description

Connecting structure for valve

Technical Field

The utility model relates to a connection structure technical field specifically is a connection structure for valve.

Background

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, is divided into a cast iron valve, a cast steel valve, a stainless steel valve, a chromium molybdenum vanadium steel valve, a dual-phase steel valve, a plastic valve, a non-standard customized valve and the like according to the material, and is connected by matching bolts and flanges.

The connection structure of the existing valve is not perfect in sealing performance, the connection position of the valve and a pipeline is usually in a detachable connection mode, and when the sealing performance of the connection position is not good enough, the internal fluid is often easy to leak, so that inconvenience is brought to fluid transportation, and the connection structure for the valve is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a connection structure for valve possesses advantages such as the leakproofness is good, and the connection structure who has solved current valve is still not perfect enough in the leakproofness, and the valve is in the connected mode when can dismantle usually with the junction of pipeline, and when the leakproofness of this kind of junction is not good enough, often leads to inside fluid to take place to reveal easily, brings inconvenient problem on the transportation for fluid.

(II) technical scheme

For the purpose that realizes that above-mentioned leakproofness is good, the utility model provides a following technical scheme: a connecting structure for a valve comprises a valve pipeline, a connecting pipeline, a threaded hole, a fixing bolt, a connecting groove, an auxiliary spring, a connecting circular plate, a clamping block, a limiting ring, a sealing ring, a matching groove, a convex block and a concave groove, wherein the threaded hole is formed in the valve pipeline, the fixing bolt which penetrates through and extends to the right side of the connecting pipeline is in threaded connection with the inner part of the threaded hole, the connecting groove is formed in the valve pipeline, the auxiliary spring is fixedly arranged on the inner wall of the connecting groove, the connecting circular plate is fixedly arranged on the right side of the auxiliary spring, the clamping block is fixedly arranged on the right side of the connecting circular plate, the limiting ring which is positioned on the outer wall of the clamping block is fixedly arranged on the inner wall of the connecting groove, the sealing ring which is in contact with the connecting pipeline is movably connected on the right side of the clamping, the valve pipeline is internally provided with a concave groove positioned on the left side of the convex block.

Preferably, the transverse center lines of the convex block and the concave groove are on the same horizontal line, and the convex block is matched with the concave groove in size.

Preferably, the outer wall of the clamping block is arranged in a round angle mode, and the outer diameter of the connecting circular plate is larger than the inner diameter of the auxiliary spring.

Preferably, the thickness of the sealing ring is larger than the depth of the matching groove, and the width of the convex block is matched with the depth of the matching groove.

Preferably, the shape of the sealing ring is circular ring shape, and the inner diameter of the sealing ring is larger than that of the connecting pipeline.

Preferably, the inner diameter of the limiting ring is smaller than the outer diameter of the connecting circular plate, and the inner wall of the limiting ring is not in contact with the outer wall of the clamping block.

(III) advantageous effects

Compared with the prior art, the utility model provides a connection structure for valve possesses following beneficial effect:

the connecting structure for the valve is characterized in that when the valve pipeline and the connecting pipeline are connected through the fixing bolt through the sealing ring arranged between the valve pipeline and the connecting pipeline, the clamping block arranged in the connecting groove extrudes the sealing ring to deform the sealing ring, and the auxiliary spring is arranged in the connecting groove, the tightness of the clamping block and the sealing ring is improved by the elastic extrusion generated on the auxiliary spring, meanwhile, the sealing ring is matched with a matching groove on the connecting pipeline, so that the sealing ring is ensured to be in close contact with the valve pipeline and the connecting pipeline, meanwhile, the convex block arranged on the connecting pipeline is matched with the concave groove in the valve pipeline, so that the sealing performance of the sealing ring on fluid is further improved, the sealing performance of the valve joint is improved, the pipeline can better transport the fluid, and the problem caused by poor sealing performance is solved.

Drawings

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

fig. 2 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the valve comprises a valve pipeline 1, a connecting pipeline 2, a threaded hole 3, a fixing bolt 4, a connecting groove 5, an auxiliary spring 6, a connecting circular plate 7, a clamping block 8, a limiting ring 9, a sealing ring 10, a matching groove 11, a convex block 12 and a concave groove 13.

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. 1-2, a connecting structure for a valve comprises a valve pipeline 1, a connecting pipeline 2, a threaded hole 3, a fixing bolt 4, a connecting groove 5, an auxiliary spring 6, a connecting circular plate 7, a clamping block 8, a limiting ring 9, a sealing ring 10, a matching groove 11, a convex block 12 and a concave groove 13, wherein the valve pipeline 1 is internally provided with the threaded hole 3, the internal thread of the threaded hole 3 is connected with the fixing bolt 4 penetrating and extending to the right side of the connecting pipeline 2, the valve pipeline 1 is internally provided with the connecting groove 5, the inner wall of the connecting groove 5 is fixedly provided with the auxiliary spring 6, the right side of the auxiliary spring 6 is fixedly provided with the connecting circular plate 7, the right side of the connecting circular plate 7 is fixedly provided with the clamping block 8, the outer wall of the clamping block 8 is arranged in a round angle, the outer diameter of the connecting circular plate 7 is larger than the inner diameter of the, the inner wall of the connecting groove 5 is fixedly provided with a limiting ring 9 positioned on the outer wall of the clamping block 8, the inner diameter of the limiting ring 9 is smaller than the outer diameter of the connecting circular plate 7, the inner wall of the limiting ring 9 is not contacted with the outer wall of the clamping block 8, the shape of the sealing ring 10 is circular, the inner diameter of the sealing ring 10 is larger than the inner diameter of the connecting pipeline 2, the thickness of the sealing ring 10 is larger than the depth of the matching groove 11, the width of the convex block 12 is matched with the depth of the matching groove 11, the matching groove 11 is arranged inside the connecting pipeline 2, the connecting pipeline 2 is fixedly provided with the convex block 12, the transverse center lines of the convex block 12 and the transverse center line of the concave groove 13 are on the same horizontal line, the convex block 12 is matched with the concave groove 13 in size, the valve pipeline 1 is provided with the concave groove 13 positioned on the left side of the convex block 12, the sealing ring 10 is arranged between the valve pipeline 1 and the, pressing from both sides tight piece 8 that sets up in spread groove 5 inside extrudees sealing washer 10, make sealing washer 10 produce deformation, and at the inside auxiliary spring 6 that sets up of spread groove 5, through the elastic extrusion that produces on auxiliary spring 6, the compactness of pressing from both sides tight piece 8 and sealing washer 10 has been improved, cooperate with cooperation groove 11 on connecting tube 2 simultaneously, it carries out in close contact with to have guaranteed that sealing washer and valve pipeline 1 and connecting tube 2 carry out, the convex piece 12 that sets up simultaneously on connecting tube 2 cooperates with the inside concave groove 13 of valve pipeline 1, further improvement the leakproofness of sealing washer 10 to the fluid, the leakproofness of valve junction has been improved, the better fluid of pipeline ability has been guaranteed to transport, the problem of bringing because the leakproofness is not good has been solved.

To sum up, in the connecting structure for the valve, when the valve pipeline 1 and the connecting pipeline 2 are connected through the fixing bolt 4, the sealing ring 10 is extruded by the clamping block 8 arranged inside the connecting groove 5 when the valve pipeline 1 and the connecting pipeline 2 are connected, so that the sealing ring 10 is deformed, the auxiliary spring 6 arranged inside the connecting groove 5 improves the tightness between the clamping block 8 and the sealing ring 10 through the elastic extrusion generated on the auxiliary spring 6, and simultaneously is matched with the matching groove 11 on the connecting pipeline 2, so that the sealing ring is ensured to be in close contact with the valve pipeline 1 and the connecting pipeline 2, meanwhile, the convex block 12 arranged on the connecting pipeline 2 is matched with the concave groove 13 inside the valve pipeline 1, the fluid tightness of the sealing ring 10 is further improved, and the sealing performance of the valve joint is improved, the pipeline can better transport the fluid, and the problem caused by poor sealing performance is solved.

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 connection structure for valve, includes valve conduit (1), connecting tube (2), screw hole (3), fixing bolt (4), spread groove (5), auxiliary spring (6), connection plectane (7), presss from both sides tight piece (8), spacing ring (9), sealing washer (10), cooperation groove (11), convex block (12) and concave groove (13), its characterized in that: the valve pipeline is characterized in that a threaded hole (3) is formed in the valve pipeline (1), a fixing bolt (4) penetrating through and extending to the right side of the connecting pipeline (2) is connected to the inner thread of the threaded hole (3), a connecting groove (5) is formed in the valve pipeline (1), an auxiliary spring (6) is fixedly mounted on the inner wall of the connecting groove (5), a connecting circular plate (7) is fixedly mounted on the right side of the auxiliary spring (6), a clamping block (8) is fixedly mounted on the right side of the connecting circular plate (7), a limiting ring (9) located on the outer wall of the clamping block (8) is fixedly mounted on the inner wall of the connecting groove (5), a sealing ring (10) in contact with the connecting pipeline (2) is movably connected to the right side of the clamping block (8), a matching groove (11) is formed in the connecting pipeline (2), and a convex block (12) is fixedly, the valve pipeline (1) is internally provided with a concave groove (13) positioned at the left side of the convex block (12).

2. A coupling structure for a valve according to claim 1, wherein: the transverse center lines of the convex block (12) and the concave groove (13) are on the same horizontal line, and the size of the convex block (12) is matched with that of the concave groove (13).

3. A coupling structure for a valve according to claim 1, wherein: the outer wall of the clamping block (8) is arranged in a round angle mode, and the outer diameter of the connecting circular plate (7) is larger than the inner diameter of the auxiliary spring (6).

4. A coupling structure for a valve according to claim 1, wherein: the thickness of the sealing ring (10) is larger than the depth of the matching groove (11), and the width of the convex block (12) is matched with the depth of the matching groove (11).

5. A coupling structure for a valve according to claim 1, wherein: the shape of sealing washer (10) is the ring form, and the internal diameter of sealing washer (10) is greater than the internal diameter of connecting tube (2).

6. A coupling structure for a valve according to claim 1, wherein: the inner diameter of the limiting ring (9) is smaller than the outer diameter of the connecting circular plate (7), and the inner wall of the limiting ring (9) is not contacted with the outer wall of the clamping block (8).