Chemical pipeline ball valve

Abstract

The utility model discloses a chemical pipeline ball valve, relates to ball valve field, including ball valve main part, said ball valve main part both sides are integratedly connected with the extension pipeline, and the extension pipeline and chemical pipeline realize the threaded connection through the threaded pipe, also including: limit subassembly, the inside of extension pipeline is rotatingly connected with limit annular block. The threaded pipe is shifted to rotate, the threaded pipe moves towards the interior of the first threaded connecting groove and then leaves the interior of the second threaded connecting groove, so that connection between the whole ball valve body and the chemical pipeline is interrupted, the ball valve body can be conveniently taken down for maintenance work, the threaded pipe is reversely rotated subsequently, and the maintenance efficiency is improved. The threaded pipe rotates and moves at the same time to be gradually matched with a second threaded connecting groove reserved in the chemical pipeline to achieve threaded connection, after the end of the threaded pipe is tightly attached to the end of the second threaded connecting groove, the ball valve body is connected with the chemical pipeline, and in this way, the ball valve and the pipe body can be conveniently reinstalled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ball valve, concretely relates to a chemical pipeline ball valve. BACKGROUND

[0002] Ball valve is mainly used for cutting off, distributing and changing the flow direction of medium in pipeline, it only needs to rotate 90 degrees and small torque to close tightly, and the ball valve is most suitable for use as on-off valve and cut-off valve.

[0003] The existing ball valve is mostly connected with the pipeline by butt joint of the pipeline opening and then screw thread connection, so that a plurality of screws need to be twisted to realize the matching installation of the pipeline, which leads to complicated installation process, and after the ball valve is replaced, the pipeline openings at the two ends of the new ball valve may have gaps with the original chemical pipeline openings, so that the connection of the ball valve and the chemical pipeline may need to be realized by the auxiliary connection of other pipelines, which leads to inconvenient operation.

[0004] Therefore, it is necessary to invent a chemical pipeline ball valve to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model discloses a chemical pipeline ball valve to solve the above background art that the existing ball valve is mostly connected with the pipeline by butt joint of the pipeline opening and then screw thread connection, so that a plurality of screws need to be twisted to realize the matching installation of the pipeline, which leads to complicated installation process, and after the ball valve is replaced, the pipeline openings at the two ends of the new ball valve may have gaps with the original chemical pipeline openings, so that the connection of the ball valve and the chemical pipeline may need to be realized by the auxiliary connection of other pipelines, which leads to inconvenient operation.

[0006] In order to realize the above purpose, the utility model provides the following technical scheme: a chemical pipeline ball valve, including ball valve main part, the both sides of ball valve main part are integrative connection has the extension pipeline, and the extension pipeline is connected with the chemical pipeline through the threaded pipe and realizes the screw thread connection, and the threaded pipe is reserved with the threaded connection groove in the extension pipeline inside Screw thread connection groove two in the chemical pipeline inside, still include:

[0007] Limiting assembly, the inside of extension pipeline rotatably connected with limiting ring block, and the inner wall of limiting ring block is fixedly connected with limiting short rod, and limiting short rod is slidably connected in the limiting groove reserved in the threaded pipe.

[0008] Preferably, the two extension pipelines are fixedly connected on the both sides of the ball valve main body in a symmetrical manner, so as to facilitate the connection of the chemical pipeline and the ball valve main body through the extension pipeline.

[0009] Preferably, the two ends of the threaded pipe are through, and sealing rubber rings are embedded and mounted in the two end walls of the threaded pipe, so that the threaded pipe connected by the threaded connection inside the pipeline is connected with the chemical pipeline in a sealed manner, and the chemical pipeline is conveniently used subsequently.

[0010] Preferably, the outer wall of the limiting short rod fixedly connected to the inner wall of the limiting annular block is in close contact with the inner wall of the limiting annular groove and is rotatably connected, and the limiting annular groove is in communication with the threaded connection groove I, so that the limiting short rod and the limiting annular block are stably movable subsequently.

[0011] Preferably, the two limiting short rods are a group, and the two limiting short rods are arranged in an upper-lower symmetrical manner, and the non-adjacent ends of the two limiting short rods are fixedly connected to the inner wall of the limiting annular block.

[0012] Preferably, the outer diameter of the limiting short rod is smaller than the distance between the two end walls of the limiting annular block, so that the limiting annular block fixedly connected to the limiting short rod is stably movable in the limiting annular groove.

[0013] Preferably, the limiting short rod is slidably connected to the limiting groove reserved in the threaded pipe, and the two ends of the limiting groove are in a closed state, so that the threaded connection between the threaded pipe and the threaded connection groove I is not detached, and the limiting short rod does not affect the rotation of the threaded pipe.

[0014] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0015] 1. By rotating the threaded pipe, the threaded pipe is displaced to move into the threaded connection groove I and away from the threaded connection groove II, so that the connection between the entire ball valve body and the chemical pipeline is interrupted, the ball valve body is conveniently removed for maintenance, the threaded pipe is reversely rotated, the threaded pipe is rotated and displaced to gradually match the threaded connection groove II reserved in the chemical pipeline, and then the threaded connection is realized, the ball valve body is connected with the chemical pipeline after the end of the threaded pipe is closely attached to the end of the threaded connection groove II, and the ball valve and the pipe body are conveniently reinstalled.

[0016] 2. The rotation of the threaded pipe causes the rotation of the limiting short rod and the limiting annular block fixedly connected to the limiting short rod, the two ends of the limiting groove are in a closed state, the threaded connection between the threaded pipe and the threaded connection groove I is not detached, and the limiting short rod does not affect the rotation of the threaded pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is a perspective view of the overall structure of the present application.

[0019] Figure 2 It is an explosion view of the connection structure of the ball valve body and the chemical pipeline of the present application.

[0020] Figure 3 It is a perspective view of the internal structure of the ball valve body (in a partially cut state) of the present application.

[0021] Figure 4 It is an explosion view of the connection structure of the ball valve body (in a partially cut state) and the limiting assembly of the present application.

[0022] Explanation of reference signs:

[0023] 1, ball valve body; 101, extension pipeline; 2, chemical pipeline; 3, threaded pipe; 4, threaded connection groove one; 5, threaded connection groove two; 6, limiting assembly; 601, limiting annular block; 602, limiting short rod; 603, limiting annular groove; 604, limiting groove. DETAILED DESCRIPTION

[0024] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.

[0025] The present application provides a chemical pipeline ball valve as shown in Figures 1-4 The present application provides a chemical pipeline ball valve as shown in

[0026] The limiting assembly 6 is internally rotatably connected with the extension pipeline 101, the inner wall of the limiting ring block 601 is fixedly connected with the limiting short rod 602, and the limiting short rod 602 is slidably connected with the limiting groove 604 reserved in the threaded pipe 3, so that the threaded connection between the threaded pipe 3 and the threaded connection groove 4 is not loosened, and meanwhile the limiting short rod 602 does not affect the rotation of the threaded pipe 3.

[0027] The two extension pipelines 101 are fixedly connected with the ball valve body 1 at two opposite positions, so that the chemical pipeline 2 is connected with the ball valve body 1 through the extension pipeline 101.

[0028] The two ends of the threaded pipe 3 are through, and the sealing rubber rings are embedded and installed in the inner walls of the two ends of the threaded pipe 3, so that the threaded pipe 3 connected with the chemical pipeline 2 in the extension pipeline 101 is sealed, and the chemical pipeline 2 is conveniently used subsequently.

[0029] The outer wall of the limiting short rod 602 fixedly connected with the inner wall of the limiting ring block 601 is in close contact with the inner wall of the limiting ring groove 603 and is rotatably connected with the limiting ring groove 603, and the limiting ring groove 603 is communicated with the threaded connection groove 4, so that the limiting short rod 602 and the limiting ring block 601 are stably movable subsequently.

[0030] The two limiting short rods 602 are a group, and the two limiting short rods 602 are arranged in an upper-lower symmetrical manner, and the non-adjacent ends of the two limiting short rods 602 are fixedly connected with the inner wall of the limiting ring block 601.

[0031] The outer diameter of the limiting short rod 602 is smaller than the distance between the two end walls of the limiting ring block 601, so that the limiting ring block 601 fixedly connected with the limiting short rod 602 is stably movable in the limiting ring groove 603.

[0032] The limiting short rod 602 is slidably connected with the limiting groove 604 reserved in the threaded pipe 3, and the two ends of the limiting groove 604 are closed, so that the threaded connection between the threaded pipe 3 and the threaded connection groove 4 is not loosened, and meanwhile the limiting short rod 602 does not affect the rotation of the threaded pipe 3.

[0033] Working principle: when using a chemical pipeline ball valve, first rotate the threaded pipe 3, because the extension pipe 101 is connected with the chemical pipeline 2 through the threaded pipe 3, and the threaded pipe 3 is threadedly connected with the threaded connection groove one 4 reserved inside the extension pipe 101 and the threaded connection groove two 5 reserved inside the chemical pipeline 2, so when the threaded pipe 3 is rotated, the threaded pipe 3 will be displaced to move inside the threaded connection groove one 4 and gradually move away from the inside of the threaded connection groove two 5, so that the connection between the ball valve body 1 and the chemical pipeline 2 is interrupted, facilitating the removal of the ball valve body 1 for maintenance, and subsequent reinstallation is also convenient;

[0034] When it is necessary to install the ball valve body 1 with two oppositely arranged chemical pipelines 2, align the pipe openings of the extension pipes 101 on both sides of the ball valve body 1 with the opening positions of the two chemical pipelines 2, and then rotate the threaded pipe 3, similarly, the threaded pipe 3 threadedly connected with the threaded connection groove one 4 will be displaced when being rotated, and the threaded pipe 3 rotates and displaces gradually to match the threaded connection groove two 5 reserved inside the chemical pipeline 2 and then threadedly connected, after the end of the threaded pipe 3 tightly abuts against the end of the threaded connection groove two 5, the ball valve body 1 is connected with the chemical pipeline 2;

[0035] When the threaded pipe 3 rotates and displaces, the rotation of the threaded pipe 3 makes the rotation of the limiting groove 604 pre-set inside the threaded pipe 3 drive the rotation of the limiting short rod 602 matched with the limiting groove 604 and in active connection, and the limiting ring block 601 fixedly connected with the limiting short rod 602, both ends of the limiting groove 604 are closed to ensure that the threaded pipe 3 and the threaded connection groove one 4 are not disconnected, and the limiting short rod 602 does not affect the rotation of the threaded pipe 3;

[0036] The threaded pipe 3 has a certain length to enable the gap between the extension pipe 101 and the chemical pipeline 2 to be connected.

[0037] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A ball valve for chemical pipelines, comprising a ball valve body (1), characterized in that, The ball valve body (1) has an extension pipe (101) integrally connected to both sides, and the extension pipe (101) and the chemical pipeline (2) are threadedly connected through a threaded pipe (3). The threaded pipe (3) is threadedly connected to the threaded connection groove one (4) reserved inside the extension pipe (101) and the threaded connection groove two (5) reserved inside the chemical pipeline (2). The valve also includes: The limiting component (6) has a limiting ring block (601) rotatably connected inside the extended pipe (101), and a limiting short rod (602) is fixedly connected to the inner wall of the limiting ring block (601), and the limiting short rod (602) is slidably connected to the limiting groove (604) reserved inside the threaded pipe (3).

2. A ball valve for chemical pipelines according to claim 1, characterized in that, The two extension pipes (101) are symmetrically and fixedly connected to both sides of the ball valve body (1).

3. A ball valve for chemical pipelines according to claim 1, characterized in that, The two ends of the threaded tube (3) are through, and sealing rings are fitted into the walls of both ends of the threaded tube (3).

4. A ball valve for chemical pipelines according to claim 1, characterized in that, The outer wall of the limiting ring block (601) and the limiting short rod (602) fixedly connected to the inner wall of the limiting ring block (601) are attached to the inner wall of the limiting ring groove (603) to achieve a rotatable connection, and the limiting ring groove (603) is connected to the threaded connection groove (4).

5. A ball valve for chemical pipelines according to claim 1, characterized in that, The two limiting short rods (602) are a set, and the two limiting short rods (602) are arranged symmetrically above and below each other. The non-adjacent ends of the two limiting short rods (602) are fixedly connected to the inner wall of the limiting ring block (601).

6. A ball valve for chemical pipelines according to claim 1, characterized in that, The outer diameter of the limiting short rod (602) is smaller than the distance between the two end walls of the limiting ring block (601).

7. A ball valve for chemical pipelines according to claim 1, characterized in that, The limiting short rod (602) is slidably connected to the limiting groove (604) reserved inside the threaded tube (3), and both ends of the limiting groove (604) are closed.

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