Two-piece welded lengthened sleeve ball valve

Abstract

The embodiment of the utility model discloses a two-piece welded lengthened sleeve ball valve which comprises a valve body, a sealing piece and a valve pipe, a communicating cavity is formed in the valve body, and a valve ball is arranged in the communicating cavity; the sealing piece is arranged between the valve ball and the communicating cavity; the number of the valve pipes is two, the two valve pipes are installed at the two ends of the valve body correspondingly, and the two valve pipes communicate with the communicating cavity. The length of the valve pipe is larger than or equal to the inner diameter distance of the communicating cavity, the valve pipe and the valve piece are integrally formed, and the valve pipe is arranged and integrally connected with the valve body, so that the influence of high temperature and sparks on the sealing piece can be avoided when the ball valve and the external pipe are welded.

Description

Technical Field

[0001] The present application relates to the field of ball valve structures, and in particular to a two-piece welded extended sleeve ball valve. Background Art

[0002] As a common fluid control device, ball valves are widely used in many industrial fields such as petrochemical, chemical, electric power, water treatment, and papermaking.

[0003] A traditional ball valve consists of key components such as the ball, valve seat, valve stem, and operating mechanism. The ball, serving as the closing element, is typically spherical with a central channel. Rotating the ball controls the flow of the pipeline. The valve seat acts as a positioning mechanism for the ball, and the two create a seal at their interface to prevent leakage. The valve stem runs through the center of the ball, with one end connected to the ball and the other to the operating mechanism. Rotating or pushing the operating mechanism rotates the ball, opening and closing the valve.

[0004] There is a rubber seal between the spherical valve body and the valve cavity inside the ball valve. The welding point where the traditional ball valve is connected to the pipeline is close to the seal. The high temperature and sparks generated during the welding process may cause damage to the seal.

[0005] Therefore, how to avoid damage to seals is an important technical problem that needs to be solved urgently. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a two-piece welded extended sleeve ball valve. By providing a valve pipe, and the valve pipe is integrally connected to the valve body, it can avoid the influence of high temperature and sparks on the seal when the ball valve and the external pipe are welded.

[0007] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0008] The present application provides a two-piece welded extended sleeve ball valve, comprising:

[0009] A valve body, wherein a communication cavity is provided in the valve body, and a valve ball is provided in the communication cavity;

[0010] a sealing member, disposed between the valve ball and the communicating cavity;

[0011] Two valve pipes are provided, and the two valve pipes are respectively installed at two ends of the valve body, and the two valve pipes are connected to the communication cavity.

[0012] Optionally, in some embodiments of the present application, the length of the valve tube is greater than or equal to the inner diameter distance of the connecting cavity.

[0013] Optionally, in some embodiments of the present application, a positioning groove is provided in the communicating cavity at a position corresponding to the sealing component, and the sealing component is located in the positioning groove.

[0014] Optionally, in some embodiments of the present application, the positioning groove is provided near the valve tube, and the sealing member abuts against the valve ball and the communicating cavity through the positioning groove.

[0015] Optionally, in some embodiments of the present application, a bevel is provided on one end of the valve tube away from the valve ball, and the bevel is ring-mounted on the valve tube.

[0016] Optionally, in some embodiments of the present application, the oblique opening is arranged at a peripheral position of the valve tube.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In this application, by providing a valve tube integrally connected to the valve body, sparks and high temperatures can be prevented from affecting the seal during welding with the external pipe, thereby ensuring the integrity of the product;

[0019] By providing the bevel, sparks can be prevented from affecting the sealing component when the valve pipe and the external pipe are welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the overall structure of a two-piece welded extended sleeve ball valve provided in an embodiment of the present application;

[0022] Figure 2 A schematic side cross-sectional view of the structure of a two-piece welded extended sleeve ball valve provided in an embodiment of the present application;

[0023] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0024] Figure 4 for Figure 2 Enlarged structural diagram at point B in the middle.

[0025] Description of reference numerals:

[0026] 100, valve body; 110, connecting cavity; 111, positioning groove; 120, valve ball; 121, through hole; 122, limiting hole; 200, sealing element; 300, valve tube; 310, oblique mouth; 400, external tube; 500, valve stem. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It is understood that the drawings are only provided for reference and illustration purposes and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0028] Specifically, if Figure 1 As shown, a two-piece welded extended sleeve ball valve is provided in the embodiment of the present application. The ball valve is mainly provided with a valve ball 120, a valve body 100 and a valve tube 300, wherein the valve ball 120 is located in the communicating cavity 110 in the valve body 100, and the opening and closing of the ball valve are controlled by the rotation of the valve ball 120. In the embodiment of the present application, the opening and closing of the ball valve are controlled by the rotation of the valve stem 500. A through hole 121 is opened on the valve body 100 at a position corresponding to the valve stem 500. The valve stem 500 is located in the through hole 121 and is connected to the valve ball 120. 00, a limiting hole 122 is provided at the position of the valve stem 500, and one end of the valve stem 500 close to the valve ball 120 is located in the limiting hole 122, and the limiting hole 122 is a square limiting hole 122, and one end of the corresponding valve stem 500 is a square valve stem 500, and the square valve stem 500 is in the square limiting hole 122, so that when the valve stem 500 rotates, the horizontal rotation of the valve stem 500 drives the valve ball 120 to rotate in the horizontal direction. When rotating, the direction of the through hole 121 on the valve ball 120 forms an angle with the water flow direction in the valve body 100, thereby controlling the water flow rate of the ball valve.

[0029] In the embodiment of the present application, a sealing member 200 is provided on the valve ball 120. The sealing member 200 is located at both ends of the valve ball 120 and is provided corresponding to the position of the valve tube 300. Specifically,

[0030] like Figure 2 and Figure 3As shown, a connecting cavity 110 is provided on the valve body 100, and valve tubes 300 are protruding at both ends of the valve body 100. The valve tube 300 is connected to the connecting cavity 110, and a positioning groove 111 is provided in the connecting cavity 110 at a position corresponding to the valve tube 300. The positioning groove 111 is annularly arranged. Specifically, an opening is provided in the connecting cavity 110 at a position corresponding to the valve tube 300. The positioning groove 111 is located around the opening, and a sealing member 200 is provided in the positioning groove 111, so that the sealing member 200 abuts against the valve ball 120 and the inner wall of the connecting cavity 110 to avoid friction between the valve ball 120 and the inner wall of the connecting cavity 110. The setting of the sealing member 200 also seals and separates the opening from the inner wall of the connecting cavity 110 to prevent the fluid from entering the connecting cavity 110 through the opening.

[0031] In the embodiment of the present application, the sealing member 200 is made of rubber.

[0032] Since the seal 200 is located at the opening position of the ball valve, the high temperature and sparks generated during the welding process of the ball valve and the pipeline will damage the seal 200. In order to avoid this situation, a valve pipe 300 is provided. In the embodiment of the present application, two valve pipes 300 are provided. The two valve pipes 300 are both provided corresponding to the opening position, and the valve pipe 300 and the valve body 100 are integrally formed, that is, there is no welding point between the valve pipe 300 and the valve body 100.

[0033] In the embodiment of the present application, in order to prevent sparks and high temperature from affecting the seal 200, the length of the valve tube 300 is greater than or equal to the inner diameter of the connecting cavity 110. Preferably, the length of the valve tube 300 is greater than the inner diameter length of the connecting cavity 110. Further preferably, the length of the valve tube 300 is greater than the length of the valve body 100, so that the high temperature and sparks generated during the connection of the valve tube 300 to the external tube 400 cannot cause damage to the seal 200, thereby maintaining the overall structure of the ball valve and facilitating the use of the ball valve.

[0034] In the embodiment of the present application, in order to further prevent sparks and high temperatures from affecting the seal 200, an oblique opening 310 is provided on the valve tube 300, specifically at the outer periphery of the end of the valve tube 300 away from the valve body 100. Figure 4 As shown, the bevel 310 is arranged on the valve pipe 300 so that when the valve pipe 300 and the external pipe 400 are welded, the bevel 310 can prevent sparks from entering the pipe and damaging the seal 200.

[0035] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A two-piece welded extended sleeve ball valve, characterized in that: include: A valve body, wherein a communication cavity is provided in the valve body, and a valve ball is provided in the communication cavity; a sealing member, disposed between the valve ball and the communicating cavity; Two valve pipes are provided, and the two valve pipes are respectively installed at two ends of the valve body, and the two valve pipes are connected to the communication cavity.

2. A two-piece welded extended sleeve ball valve according to claim 1, characterized in that: The length of the valve tube is greater than or equal to the inner diameter of the communication cavity, and the valve tube and the valve body are integrally formed.

3. A two-piece welded extended sleeve ball valve according to claim 1, characterized in that: A positioning groove is provided in the communicating cavity at a position corresponding to the sealing component, and the sealing component is located in the positioning groove.

4. A two-piece welded extended sleeve ball valve according to claim 3, characterized in that: The positioning groove is arranged close to the valve tube, and the sealing member abuts against the valve ball and the communicating cavity through the positioning groove.

5. The two-piece welded extended sleeve ball valve according to claim 1, characterized in that: An oblique opening is provided on one end of the valve tube away from the valve ball, and the oblique opening is annularly arranged on the valve tube.

6. A two-piece welded extended sleeve ball valve according to claim 5, characterized in that: The oblique opening is arranged at a peripheral position of the valve tube.

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