Miniature high-pressure ball valve

Abstract

The utility model discloses a miniature high-pressure ball valve, which relates to the technical field of high-pressure ball valves and comprises a valve body and an external pipe body, and a second threaded section is arranged at the open end of the external pipe body. According to the high-pressure ball valve, when the whole high-pressure ball valve is not used, the threaded sleeve is screwed on the outer surface wall of the first threaded section, and when the high-pressure ball valve is put into use, the threaded sleeve is screwed away from the first threaded section and screwed on the second threaded section, then the external pipe body is combined to the outer side of the connecting end, and when the open end of the external pipe is connected with one side of the connecting end in an abutting mode, the threaded sleeve is screwed on the outer surface wall of the second threaded section. The inserting barrel is inserted into the outer pipe body, then the threaded sleeve is rotated to be gradually screwed to the first threaded section till the threaded sleeve abuts against the outer surface wall of the connecting end, at the moment, the threaded sleeve is combined with the first threaded section and the second threaded section at the same time, connection of the valve body and the outer pipe body is achieved, and rotation of the valve body or the outer pipe body is not needed in the whole process. And therefore, the use convenience of the miniature high-pressure ball valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure ball valves, and particularly relates to a micro high-pressure ball valve. Background Art

[0002] A high-pressure ball valve refers to a valve in which the opening and closing member is driven by a valve stem and rotates around the axis of the valve stem, and is used for hydraulic mechanical equipment, hydraulic switches, natural gas, etc.

[0003] For example, the all-welded high-pressure ball valve provided by the patent application number CN202022469683.9 includes a housing. An inner cavity is provided in the housing. A through port is provided on the housing. A housing cover is installed on the housing. A ball valve body is arranged in the inner cavity. A control rod is installed on the ball valve body. A fixing block is fixedly installed on the control rod. A square groove is provided in the fixing block. A square rod is inserted into the square groove. A turntable is fixedly installed at one end of the square rod away from the fixing block. Through holes are provided on both sides of the housing. The ball valve body passes through the through holes. The housing cover is threadedly connected to the outer side wall of the through port. A chute is provided on the housing cover. A baffle is slidably connected in the chute. A moving block is installed on the housing cover. The moving block is rotatably connected to the housing cover. The moving block is circular. A square hole is provided at the central position of the moving block. The size of the square hole is the same as that of the square groove.

[0004] Based on the above search and combined with the prior art, it is found that in the prior art, the connection method between the connection end of a micro high-pressure ball valve similar to the above disclosure and an external pipe body is mostly through threaded connection, that is, threads are provided on both the inner side of the connection end and the outer side of the external pipe. In the specific implementation process, affected by the volume and external space, it is inconvenient both to rotate the valve body and to rotate the external pipe body. Therefore, a micro high-pressure ball valve is proposed to improve the above problems. Summary of the Utility Model

[0005] The purpose of this application is to provide a micro high-pressure ball valve to solve the problems proposed in the above background art.

[0006] To achieve the above purpose, this application provides the following technical solution: A micro high-pressure ball valve includes a valve body and an external pipe body. A second threaded section is provided at the open end of the external pipe body. Connection ends are fixedly connected to both sides of the horizontal end of the valve body. A first threaded section is provided on the outer surface of the arc-shaped end of the connection end. A sealing ring is fixedly connected to the side of the connection end away from the valve body. The open end of the external pipe body abuts against the sealing ring. A screw sleeve is screwed between the first threaded section and the second threaded section. And a limiting component for restricting the axial loosening of the screw sleeve is provided between the outer side of the screw sleeve and the valve body.

[0007] As a further supplement to this solution, the limit component includes an outer seat, the outer seat is fixedly connected to the outer wall of the horizontal end of the valve body, the inner wall of the bottom of the outer seat is slidably connected with a sliding seat, the bottom of the sliding seat is in contact and cooperation with the outer wall of the arc end of the screw sleeve, the top of the sliding seat is fixedly connected with a pulling frame that is slidably matched with the inner wall of the top of the outer seat, and a spring is fixedly connected between the top of the sliding seat and the inner wall of the top of the outer seat.

[0008] As a further supplement to this solution, the bottom of the sliding seat is arranged as an arc surface, a rubber pad is fixedly connected to the bottom of the arc surface, the rubber pad abuts against the outer wall of the screw sleeve, and the outer wall of the screw sleeve is provided with rough lines.

[0009] As a further supplement to this solution, an installation frame is fixedly connected to the outer wall of the outer seat, and the vertical end of the installation frame is fixedly connected to the outer wall of the valve body through a locking rod.

[0010] As a further supplement to this solution, a rubber block is in interference fit inside the vertical end of the installation frame, and the inner wall of the rubber block abuts against the outer wall of the locking rod.

[0011] As a further supplement to this solution, a socket is integrally formed on one side of the connection end away from the valve body, and the outer wall of the arc end of the socket abuts against the inner wall of the arc end of the external pipe.

[0012] In summary, the technical effects and advantages of the present utility model are as follows:

[0013] 1. In the present utility model, when the high-pressure ball valve is not in use as a whole, the screw sleeve is screwed on the outer wall of the first threaded section. When the high-pressure ball valve is put into use, first screw the screw sleeve away from the first threaded section and screw it onto the second threaded section. Then, combine the external pipe with the outside of the connection end. While the open end of the external pipe fitting abuts against one side of the connection end, the socket is inserted into the inside of the external pipe. Then, rotate the screw sleeve to gradually screw it onto the first threaded section until the screw sleeve abuts against the outer wall of the connection end. At this time, the screw sleeve combines the first threaded section and the second threaded section at the same time, so as to realize the connection between the valve body and the external pipe, and the whole process does not require the rotation of the valve body or the external pipe, thereby improving the convenience of using the micro high-pressure ball valve.

[0014] 2. In the present utility model, under the action of the spring, the sliding seat drives the rubber pad to closely adhere to the outer wall of the screw sleeve. The friction force generated between the rubber pad and the outer wall of the screw sleeve can limit the axial loosening of the screw sleeve, thereby ensuring the stability of the connection between the connection end and the external pipe, and improving the stability of using the micro high-pressure ball valve. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0017] Figure 2 Schematic diagram of the rubber block structure in this embodiment;

[0018] Figure 3 Schematic diagram of the spring structure in this embodiment;

[0019] Figure 4 Schematic diagram of the screw sleeve structure in this embodiment.

[0020] In the figure: 1. Valve body; 2. Connection end; 3. External pipe body; 4. Mounting bracket; 5. Outer seat; 6. Slide seat; 7. Rubber pad; 8. Pulling bracket; 9. Locking rod; 10. Rubber block; 11. Spring; 12. Screw sleeve; 13. Insertion cylinder; 14. First thread section; 15. Second thread section; 16. Sealing ring. Specific implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Embodiment: Refer to Figures 1-4 A shown micro high-pressure ball valve, including a valve body 1 and an external pipe body 3. A second thread section 15 is provided at the open end of the external pipe body 3. Both sides of the horizontal end of the valve body 1 are fixedly connected with connection ends 2. A first thread section 14 is provided on the outer surface of the arc end of the connection end 2. A sealing ring 16 is fixedly connected to the side of the connection end 2 away from the valve body 1. The open end of the external pipe body 3 abuts against the sealing ring 16. A screw sleeve 12 is screwed between the first thread section 14 and the second thread section 15, and a limiting component for restricting the axial loosening of the screw sleeve 12 is provided between the outer side of the screw sleeve 12 and the valve body 1;

[0023] When the high-pressure ball valve as a whole is not in use, the screw sleeve 12 is screwed onto the outer wall of the first threaded section 14. When the high-pressure ball valve is put into use, first screw the screw sleeve 12 off the first threaded section 14 and screw it onto the second threaded section 15. Then, combine the external pipe body 3 to the outside of the connection end 2. While the open end of the external pipe fitting 3 abuts against one side of the connection end 2, the insertion cylinder 13 is inserted into the internal part of the external pipe body 3. Then, rotate the screw sleeve 12 to gradually screw it onto the first threaded section 14 until the screw sleeve 12 abuts against the outer wall of the connection end 2. At this time, the screw sleeve 12 combines the first threaded section 14 and the second threaded section 15 at the same time, so as to realize the connection between the valve body 1 and the external pipe body 3, and the whole process does not require the rotation of the valve body 1 or the external pipe body 3, thus improving the convenience of using the micro high-pressure ball valve.

[0024] The limit component includes an outer seat 5, which is fixedly connected to the outer wall of the horizontal end of the valve body 1. The inner wall of the bottom of the outer seat 5 is slidably connected with a sliding seat 6. The bottom of the sliding seat 6 is in contact and cooperation with the outer wall of the arc end of the screw sleeve 12. The top of the sliding seat 6 is fixedly connected with a pull frame 8 that is slidably matched with the inner wall of the top of the outer seat 5. And a spring 11 is fixedly connected between the top of the sliding seat 6 and the inner wall of the top of the outer seat 5. The sliding seat 6 drives the rubber pad 7 to closely adhere to the outer wall of the screw sleeve 12 under the action of the spring 11. The friction force generated between the rubber pad 7 and the outer wall of the screw sleeve 12 can limit the axial loosening of the screw sleeve 12, thus ensuring the stability of the connection between the connection end 2 and the external pipe body 3, and improving the stability of using the micro high-pressure ball valve.

[0025] The bottom of the sliding seat 6 is set as an arc surface, and the rubber pad 7 is fixedly connected to the bottom of the arc surface. The rubber pad 7 abuts against the outer wall of the screw sleeve 12, and the outer wall of the screw sleeve 12 is provided with rough lines to ensure the stability of the contact between the sliding seat 6 and the screw sleeve 12. An installation frame 4 is fixedly connected to the outer wall of the outer seat 5. The vertical end of the installation frame 4 is fixedly connected to the outer wall of the valve body 1 through a locking rod 9 to ensure the convenience of disassembly and assembly of the outer seat 5.

[0026] The vertical end of the installation frame 4 is in interference fit with a rubber block 10, and the inner wall of the rubber block 10 abuts against the outer wall of the locking rod 9. The interference fit method ensures the position stability of the rubber block 10 itself. The rubber block 10 can limit the loosening of the locking rod 9 through the friction force. An insertion cylinder 13 is integrally formed on the side of the connection end 2 away from the valve body 1. The outer wall of the arc end of the insertion cylinder 13 abuts against the inner wall of the arc end of the external pipe body 3, so as to facilitate the rapid alignment of the external pipe body 3 and the connection end 2 and be able to support the connection part of the external pipe body 3 from the inside.

[0027] Working principle of the utility model: When the high-pressure ball valve is not in use as a whole, the screw sleeve 12 is screwed onto the outer wall of the first threaded section 14. When the high-pressure ball valve is put into use, first screw the screw sleeve 12 off the first threaded section 14 and screw it onto the second threaded section 15. Then, connect the external pipe body 3 to the outside of the connection end 2. While the open end of the external pipe fitting 3 abuts against one side of the connection end 2, the insertion cylinder 13 is inserted into the internal part of the external pipe body 3. Then, rotate the screw sleeve 12 to gradually screw it onto the first threaded section 14 until the screw sleeve 12 abuts against the outer wall of the connection end 2. At this time, the screw sleeve 12 combines the first threaded section 14 and the second threaded section 15 at the same time, so as to realize the connection between the valve body 1 and the external pipe body 3. And during the whole process, there is no need to rotate the valve body 1 or the external pipe body 3, thus improving the convenience of using the micro high-pressure ball valve. The sliding seat 6 drives the rubber pad 7 to closely adhere to the outer wall of the screw sleeve 12 under the action of the spring 11. The frictional force generated between the rubber pad 7 and the outer wall of the screw sleeve 12 can limit the axial loosening of the screw sleeve 12, thus ensuring the stability of the connection between the connection end 2 and the external pipe body 3, and improving the stability of using the micro high-pressure ball valve.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A micro high-pressure ball valve, comprising a valve body (1) and an external tube body (3), wherein the open end of the external tube body (3) is provided with a second threaded section (15), characterized in that: The valve body (1) has connecting ends (2) fixedly connected to both sides of the horizontal end, the outer wall of the arc-shaped end of the connecting end (2) is provided with a threaded section 1 (14), the connecting end (2) is fixedly connected to the side away from the valve body (1) with a sealing ring (16), the open end of the external tube body (3) is in contact with the sealing ring (16), a threaded sleeve (12) is screwed together between the threaded section 1 (14) and the threaded section 2 (15), and a limit assembly for limiting axial loosening of the threaded sleeve (12) is provided between the outer side of the threaded sleeve (12) and the valve body (1).

2. A micro high-pressure ball valve according to claim 1, characterized in that: The limit assembly comprises an outer seat (5), the outer seat (5) is fixedly connected to the outer wall of the horizontal end of the valve body (1), the inner wall at the bottom of the outer seat (5) is slidably connected to a slide seat (6), the bottom of the slide seat (6) is in contact with the outer wall of the arc-shaped end of the screw sleeve (12), the top of the slide seat (6) is fixedly connected to a pull frame (8) that is slidably matched with the inner wall at the top of the outer seat (5), and a spring (11) is fixedly connected between the top of the slide seat (6) and the inner wall at the top of the outer seat (5).

3. A micro high-pressure ball valve according to claim 2, characterized in that: The bottom of the sliding seat (6) is configured as an arc-shaped surface, the bottom of the arc-shaped surface is fixedly connected to a rubber pad (7), the rubber pad (7) abuts against the outer wall of the screw sleeve (12), and the outer wall of the screw sleeve (12) is provided with rough texture.

4. A micro high-pressure ball valve according to claim 3, characterized in that: The outer wall of the outer seat (5) is fixedly connected to a mounting frame (4), and the vertical end of the mounting frame (4) is fixedly connected to the outer wall of the valve body (1) via a locking rod (9).

5. A micro high-pressure ball valve according to claim 4, characterized in that: A rubber block (10) is interference-fitted inside the vertical end of the mounting frame (4), and the inner surface wall of the rubber block (10) abuts against the outer surface wall of the locking rod (9).

6. A micro high-pressure ball valve according to claim 1, characterized in that: An insert sleeve (13) is integrally formed on the side of the connection end (2) away from the valve body (1), and the outer surface wall of the arc-shaped end of the insert sleeve (13) abuts against the inner surface wall of the arc-shaped end of the external tube body (3).

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