CN209977505U - Connecting structure for valve - Google Patents

Abstract

The utility model relates to the technical field of connecting structures, and discloses a connecting structure for a valve, which 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 limiter a ring, a sealing ring, a matching groove, a convex block and a concave groove, the valve pipe is provided with a threaded hole inside, and the internal thread of the threaded hole is threaded with a fixing bolt that penetrates and extends to the right side of the connecting pipe. The inside of the valve pipeline is provided with a connecting groove, an auxiliary spring is fixedly installed on the inner wall of the connecting groove, and a connecting circular plate is fixedly installed on the right side of the auxiliary spring. The connection structure for the valve solves the problem that the connection structure of the existing valve is not perfect in terms of tightness. The connection between the valve and the pipeline is usually a detachable connection method, and the tightness of the connection is not enough. When it is good, it is often easy to cause leakage of the internal fluid, which brings inconvenience to the transportation of the fluid.

Description

A connection structure for a valve

technical field

The utility model relates to the technical field of connection structures, in particular to a connection structure for valves.

Background technique

Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves, Chromium molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves and non-standard custom-made valves, etc., are mostly connected by bolts and flanges.

The connection structure of the existing valve is not perfect in terms of tightness. The connection between the valve and the pipeline is usually a detachable connection method. When the tightness of the connection is not good enough, it is often easy to cause the internal fluid to occur. The leakage brings inconvenience to the transportation of the fluid, so a connection structure for the valve is proposed to solve the above-mentioned problems.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides a connection structure for a valve, which has the advantages of good sealing performance, etc., and solves the problem that the sealing performance of the existing valve connection structure is not perfect enough, and the valve is in the connection with the pipeline. The connection is usually a detachable connection, and when the sealing of the connection is not good enough, it is easy to cause leakage of the internal fluid, which brings inconvenience to the transportation of the fluid.

(2) Technical solutions

In order to achieve the above-mentioned purpose of good sealing, the utility model provides the following technical scheme: a connection structure for a valve, including a valve pipeline, a connecting pipeline, a threaded hole, a fixing bolt, a connecting groove, an auxiliary spring, a connecting circular plate, a clamp The tightening block, the limit ring, the sealing ring, the matching groove, the convex block and the concave groove, the inside of the valve pipe is provided with a threaded hole, and the internal thread of the threaded hole is connected with a thread that penetrates and extends to the right side of the connecting pipe. A fixing bolt, a connecting groove is opened inside the valve pipeline, an auxiliary spring is fixedly installed on the inner wall of the connecting groove, a connecting circular plate is fixedly installed on the right side of the auxiliary spring, and the right side of the connecting circular plate is fixedly installed There is a clamping block, the inner wall of the connecting groove is fixedly installed with a limit ring located on the outer wall of the clamping block, the right side of the clamping block is movably connected with a sealing ring that contacts the connecting pipe, and the interior of the connecting pipe is opened There is a matching groove, a convex block is fixedly installed inside the connecting pipe, and a concave groove located on the left side of the convex block is opened in the inside of the valve pipe.

Preferably, the lateral centerlines of the convex block and the concave groove are on the same horizontal line, and the convex block is adapted to the size of the concave groove.

Preferably, the outer wall of the clamping block is provided with rounded corners, 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 greater than the depth of the matching groove, and the width of the convex block matches the depth of the matching groove.

Preferably, the shape of the sealing ring is annular, and the inner diameter of the sealing ring is larger than the inner diameter of the connecting pipe.

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.

(3) Beneficial effects

Compared with the prior art, the utility model provides a connection structure for a valve, which has the following beneficial effects:

The connection structure for the valve uses the sealing ring arranged between the valve pipeline and the connecting pipeline, and when the valve pipeline and the connecting pipeline are connected by fixing bolts, the clamping block arranged inside the connecting groove squeezes the sealing ring. pressure, so that the sealing ring is deformed, and the auxiliary spring arranged inside the connecting groove improves the tightness between the clamping block and the sealing ring through the elastic extrusion generated on the auxiliary spring, and at the same time cooperates with the matching groove on the connecting pipe , to ensure that the sealing ring is in close contact with the valve pipe and the connecting pipe, and at the same time, the convex block set on the connecting pipe cooperates with the concave groove inside the valve pipe, which further improves the sealing performance of the sealing ring to the fluid and improves the The tightness of the valve connection ensures that the pipeline can better transport the fluid, and solves the problems caused by poor tightness.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a partial enlarged view of part A in Fig. 1 of the utility model.

In the picture: 1 valve pipe, 2 connecting pipe, 3 threaded hole, 4 fixing bolt, 5 connecting groove, 6 auxiliary spring, 7 connecting circular plate, 8 clamping block, 9 limit ring, 10 sealing ring, 11 matching groove, 12 convex blocks, 13 concave grooves.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figure 1-2, a connection structure for valve, including valve pipe 1, connecting pipe 2, threaded hole 3, fixing bolt 4, connecting groove 5, auxiliary spring 6, connecting circular plate 7, clamping block 8 , limit ring 9, sealing ring 10, matching groove 11, convex block 12 and concave groove 13, the inside of the valve pipe 1 is provided with a threaded hole 3, and the internal thread of the threaded hole 3 is connected with a thread that penetrates and extends to the connecting pipe 2 The fixing bolt 4 on the right side, the inside of the valve pipe 1 is provided with a connecting groove 5, the inner wall of the connecting groove 5 is fixedly installed with an auxiliary spring 6, the right side of the auxiliary spring 6 is fixedly installed with a connecting circular plate 7, and the right side of the connecting circular plate 7 is fixedly installed. A clamping block 8 is fixedly installed on the side, the outer wall of the clamping block 8 is rounded, the outer diameter of the connecting circular plate 7 is larger than the inner diameter of the auxiliary spring 6, and the right side of the clamping block 8 is movably connected with the connecting pipe 2 The sealing ring 10, the inner wall of the connecting groove 5 is fixedly installed with a limit ring 9 located on the outer wall of the clamping block 8, the inner diameter of the limit ring 9 is smaller than the outer diameter of the connecting circular plate 7, and the inner wall of the limit ring 9 is connected to the clamping block. The outer walls of The depth of 11 is adapted, the interior of the connecting pipe 2 is provided with a matching groove 11, the interior of the connecting pipe 2 is fixedly installed with a convex block 12, and the lateral centerlines of the convex block 12 and the concave groove 13 are on the same horizontal line, and The convex block 12 is adapted to the size of the concave groove 13. The inside of the valve pipe 1 is provided with a concave groove 13 located on the left side of the convex block 12. Through the sealing ring set between the valve pipe 1 and the connecting pipe 2 10, and when the valve pipe 1 and the connecting pipe 2 are connected by the fixing bolts 4, the clamping block 8 provided in the connecting groove 5 squeezes the sealing ring 10, so that the sealing ring 10 is deformed, and the sealing ring 10 is deformed, and the sealing ring 10 is deformed in the connecting groove 5. The auxiliary spring 6 provided inside improves the tightness of the clamping block 8 and the sealing ring 10 through the elastic extrusion generated by the auxiliary spring 6, and at the same time cooperates with the matching groove 11 on the connecting pipe 2 to ensure the sealing ring and the sealing ring. The valve pipe 1 and the connecting pipe 2 are in close contact, and at the same time, the convex block 12 provided on the connecting pipe 2 cooperates with the concave groove 13 inside the valve pipe 1, which further improves the sealing performance of the sealing ring 10 to the fluid and improves the The tightness of the valve connection is ensured, the pipeline can better transport the fluid, and the problem caused by the poor tightness is solved.

To sum up, the connection structure for the valve passes through the sealing ring 10 provided between the valve pipe 1 and the connection pipe 2, and when the valve pipe 1 and the connection pipe 2 are connected by the fixing bolts 4, in the connection groove 5. The inner clamping block 8 squeezes the sealing ring 10, so that the sealing ring 10 is deformed, and the auxiliary spring 6 arranged inside the connecting groove 5 improves the clamping force through the elastic extrusion generated by the auxiliary spring 6. The tightness of the block 8 and the sealing ring 10 is also matched with the matching groove 11 on the connecting pipe 2 to ensure that the sealing ring is in close contact with the valve pipe 1 and the connecting pipe 2. At the same time, the convex block set on the connecting pipe 2 12 cooperates with the concave groove 13 inside the valve pipeline 1, which further improves the sealing performance of the sealing ring 10 to the fluid, improves the sealing performance of the valve connection, ensures that the pipeline can better transport the fluid, and solves the problem of Problems caused by poor sealing.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A connecting structure for a valve, comprising a valve pipe (1), a connecting pipe (2), a threaded hole (3), a fixing bolt (4), a connecting groove (5), an auxiliary spring (6), a connecting circle The plate (7), the clamping block (8), the limit ring (9), the sealing ring (10), the matching groove (11), the convex block (12) and the concave groove (13) are characterized in that: all The valve pipeline (1) is provided with a threaded hole (3) inside, and the internal thread of the threaded hole (3) is connected with a fixing bolt (4) that penetrates and extends to the right side of the connecting pipeline (2). The interior of (1) is provided with a connecting groove (5), an auxiliary spring (6) is fixedly installed on the inner wall of the connecting groove (5), and a connecting circular plate (7) is fixedly installed on the right side of the auxiliary spring (6). , a clamping block (8) is fixedly installed on the right side of the connecting circular plate (7), a limit ring (9) located on the outer wall of the clamping block (8) is fixedly installed on the inner wall of the connecting groove (5), The right side of the clamping block (8) is movably connected with a sealing ring (10) in contact with the connecting pipe (2), and a matching groove (11) is opened inside the connecting pipe (2). 2) A convex block (12) is fixedly installed inside, and a concave groove (13) located on the left side of the convex block (12) is opened in the inside of the valve pipe (1). 2. A connecting structure for a valve according to claim 1, characterized in that: the lateral centerlines of the convex block (12) and the concave groove (13) are on the same horizontal line, and the convex block (13) is on the same horizontal line. (12) is adapted to the size of the concave groove (13). 3. A connection structure for a valve according to claim 1, characterized in that: the outer wall of the clamping block (8) is provided with rounded corners, and the outer diameter of the connecting circular plate (7) is larger than that of the auxiliary Inner diameter of spring (6). 4. A connection structure for a valve according to claim 1, characterized in that: the thickness of the sealing ring (10) is greater than the depth of the matching groove (11), and the width of the convex block (12) Match with the depth of the matching groove (11). 5. A connection structure for a valve according to claim 1, characterized in that: the shape of the sealing ring (10) is annular, and the inner diameter of the sealing ring (10) is larger than that of the connecting pipe (2) the inner diameter. 6. A connection structure for a valve according to claim 1, characterized in that: the inner diameter of the limiting ring (9) is smaller than the outer diameter of the connecting circular plate (7), and the limiting ring (9) The inner wall of the clamp is not in contact with the outer wall of the clamping block (8).

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