Auxiliary tool for pipeline under-pressure valve replacement

Abstract

The utility model discloses an auxiliary tool for replacing a valve under pressure for a pipeline, which comprises a sealing seat, a fixing ring hinged to the bottom of the sealing seat, a rotating pipe rotatably mounted at the top of the sealing seat, a sealing cover slidably arranged in the rotating pipe, an observation window arranged at the center of the top of the sealing cover and at least two rotating seats arranged on the sealing cover, and the two rotating seats are symmetrically arranged on the sealing cover along the observation window in a penetrating manner. The fixing ring can fix the sealing seat on a pipeline, the rotating pipe and the sealing cover can be matched with the sealing seat to form a sealed space, and operation under pressure can be carried out under the condition that flow is not cut off; the depth of the sealing cover inserted into the rotating pipe can be adjusted through the adjusting handle, and valves with different heights can be matched through adjustment; the adjusting assembly can drive the clamping assembly to clamp and fix the ball valve and the safety valve, and therefore the rotating handle and the rotating pipe can be rotated to drive the rotating block to disassemble and assemble the valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil and gas pipeline maintenance and repair, in particular to an auxiliary tool for pipeline pressure valve replacement. Background Art

[0002] A pipeline system is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid is pressurized by blowers, compressors, pumps and boilers, and then flows from the high pressure part of the pipeline to the low pressure part. It can also be conveyed by the fluid's own pressure or gravity. Pipelines are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, water conservancy projects and various industrial devices.

[0003] Generally, various valves are installed on the pipeline system, such as ball valves for diversion and safety valves for protecting the safe operation of the pipeline system. Valves will be damaged during long-term use, and the damaged safety valve will affect the safe operation of the pipeline system. A damaged ball valve will cause the pipeline to fail to close or open as required, which will affect the normal operation of the pipeline system.

[0004] Therefore, we need to design an auxiliary tool for pipeline pressure valve replacement to solve these problems. Utility Model Content

[0005] The problem to be solved by the utility model is to provide an auxiliary tool for changing valves under pressure in pipelines.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An auxiliary tool for changing valves under pressure in pipelines, comprising a sealing seat, a fixing ring hinged at the bottom of the sealing seat, a rotating tube rotatably installed on the top of the sealing seat, a sealing cover slidably arranged in the rotating tube, an observation window and at least two rotating seats are arranged on the sealing cover, the observation window is located at the top center of the sealing cover, two rotating seats are symmetrically arranged along the observation window and penetrate the sealing cover, an adjusting component and a clamping component are rotatably arranged on the rotating seat, the clamping component cooperates with the adjusting component, and the sealing cover and the rotating tube are also connected by an adjusting handle.

[0008] Preferably, the adjustment assembly includes an adjustment gear, an adjustment screw and an adjustment slot, the adjustment gear and the adjustment screw are both rotatably arranged on the rotating seat, the adjustment gear is located on the rotating seat inside the sealing cover, the adjustment screw completely penetrates the sealing seat, and one end is meshed with the adjustment gear, and the adjustment slot is opened on the adjustment gear.

[0009] With such an arrangement, the clamping assembly can be driven and adjusted so that the clamping assembly can clamp the valve, thereby facilitating the disassembly of the valve.

[0010] Preferably, the clamping assembly includes a rotating column, an adjusting block, a slider and a claw, the rotating column is rotatably mounted on the rotating seat, the adjusting block and the claw are both fixed on the rotating column, and the slider is located in the adjusting groove and fixedly connected to the adjusting block.

[0011] With such arrangement, the valve can be clamped and fixed by the claws under the drive of the adjusting component, so as to facilitate replacement.

[0012] Preferably, the adjustment handle includes a threaded tube, a fixed block and a telescopic screw, the threaded tube is fixedly arranged on the outer wall of the rotating tube, the fixed block is fixedly arranged on the outer wall of the sealing cover, and the telescopic screw completely penetrates the fixed block and one end thereof penetrates into the threaded tube and cooperates with the threaded tube.

[0013] By configuring in this way, the depth of the sealing cover inserted into the rotating tube can be adjusted, and valves of different heights can be matched.

[0014] Preferably, a limiting groove is further provided on the inner wall of the rotating tube, a limiting block is fixedly provided on the outer wall of the sealing cover, and the limiting block is slidably matched with the limiting groove.

[0015] Such an arrangement can not only limit the direction in which the sealing cover is inserted into the rotating tube, but also ensure that the sealing cover rotates with the rotating tube.

[0016] Preferably, a rotating handle is fixedly provided on the rotating seat located outside the sealing cover.

[0017] Such arrangement makes it easy to rotate the rotating seat.

[0018] Preferably, the number of the rotating columns and the adjusting grooves is the same and is at least three, and the three rotating columns and the three adjusting grooves are evenly distributed around the circumference of the adjusting gear.

[0019] With this arrangement, the three jaws can ensure that the valve is clamped.

[0020] The advantages and positive effects of the utility model are:

[0021] The utility model can fix the sealing seat on the pipeline through the fixing ring, and can form a sealing space through the mutual cooperation of the rotating tube and the sealing cover with the sealing seat, so that it can be operated under pressure without interrupting the flow of the medium in the pipeline; the depth of the sealing cover inserted into the rotating tube can be adjusted by using the adjusting handle, and valves of different heights can be matched through adjustment; the clamping assembly can be driven by the adjusting component to clamp and fix the ball valve and the safety valve, so that the rotating block can be driven by rotating the rotating handle and the rotating tube to disassemble and install the valve, so that the valve can be replaced under pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0025] Figure 3 This is a schematic diagram of the installation position of the rotating seat of the utility model on the sealing cover;

[0026] Figure 4 yes Figure 2 A magnified view of the structure at A;

[0027] Figure 5 yes Figure 2 A magnified view of the structure at B in FIG.

[0028] Figure 6 yes Figure 3 Enlarged view of the structure at position C in the figure.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Sealing seat; 2. Fixing ring; 3. Rotating tube; 4. Sealing cover; 5. Observation window; 6. Threaded tube; 7. Telescopic screw; 8. Fixed block; 9. Rotating seat; 10. Turning handle; 11. Adjusting screw; 12. Adjusting gear; 13. Adjusting slot; 14. Rotating column; 15. Adjusting block; 16. Slider; 17. Clamping claw; 18. Limiting slot; 19. Limiting block. DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] The utility model is further described below in conjunction with the accompanying drawings:

[0034] Example 1: Figure 1-Figure 6 As shown, an auxiliary tool for changing valves under pressure in pipelines includes a sealing seat 1, a fixing ring 2 is hinged at the bottom of the sealing seat 1, a rotating tube 3 is rotatably installed on the top of the sealing seat 1, a sealing cover 4 is slidably arranged in the rotating tube 3, an observation window 5 and at least two rotating seats 9 are arranged on the sealing cover 4, the observation window 5 is located at the top center of the sealing cover 4, two rotating seats 9 are symmetrically arranged along the observation window 5 and penetrate through the sealing cover 4, an adjusting assembly and a clamping assembly are rotatably arranged on the rotating seat 9, the clamping assembly and the adjusting assembly cooperate with each other, and the sealing cover 4 and the rotating tube 3 are also connected through an adjusting handle.

[0035] Specifically, the adjusting assembly includes an adjusting gear 12, an adjusting screw 11 and an adjusting groove 13. The adjusting gear 12 and the adjusting screw 11 are both rotatably set on the rotating seat 9. The adjusting gear 12 is located on the rotating seat 9 inside the sealing cover 4. The adjusting screw 11 completely penetrates the sealing seat 1, and one end is meshed with the adjusting gear 12. The adjusting groove 13 is opened on the adjusting gear 12. Such a setting can drive and adjust the clamping assembly so that the clamping assembly can clamp the valve, which is convenient for disassembly of the valve.

[0036] Specifically, the clamping assembly includes a rotating column 14, an adjusting block 15, a slider 16 and a claw 17. The rotating column 14 is rotatably installed on the rotating seat 9. The adjusting block 15 and the claw 17 are both fixed on the rotating column 14. The slider 16 is located in the adjusting groove 13 and is fixedly connected to the adjusting block 15. Such an arrangement can clamp and fix the valve through the claw 17 under the drive of the adjusting assembly, which is convenient for replacement.

[0037] Specifically, the adjustment handle includes a threaded tube 6, a fixed block 8 and a telescopic screw 7. The threaded tube 6 is fixedly arranged on the outer wall of the rotating tube 3, the fixed block 8 is fixedly arranged on the outer wall of the sealing cover 4, the telescopic screw 7 completely penetrates the fixed block 8 and one end thereof penetrates into the threaded tube 6 and cooperates with the threaded tube 6. Such a setting can adjust the depth of the sealing cover 4 inserted into the rotating tube 3, and can match valves of different heights.

[0038] Specifically, a limiting groove 18 is provided on the inner wall of the rotating tube 3, and a limiting block 19 is fixedly provided on the outer wall of the sealing cover 4, and the limiting block 19 is slidably matched with the limiting groove 18. Such a setting can not only limit the direction in which the sealing cover 4 is inserted into the rotating tube 3, but also ensure that the sealing cover 4 rotates with the rotating tube 3.

[0039] Specifically, a rotating handle 10 is fixedly provided on the rotating seat 9 located outside the sealing cover 4 , and such a configuration facilitates the rotation of the rotating seat 9 .

[0040] Specifically, the number of the rotating posts 14 and the adjusting slots 13 is the same, and is at least three. The three rotating posts 14 and the three adjusting slots 13 are evenly distributed around the circumference of the adjusting gear 12. Thus, the three claws 17 can ensure the clamping of the valve.

[0041] The working process of this embodiment is as follows: when performing the valve replacement work, first clamp the valve to be installed on one of the rotating seats 9, insert the top of the valve between the claws 17 on the three rotating columns 14 during installation, and then rotate the adjusting screw 11. When the adjusting screw 11 rotates, it will drive the meshing adjusting gear 12 to rotate. When the adjusting gear 12 rotates, it will drive the rotating column 14 to rotate under the cooperation of the adjusting groove 13 and the slider 16. After the rotating column 14 rotates, it will clamp the valve.

[0042] After the valve clamping is completed, the device is installed on the main pipeline of the valve to be replaced. During installation, the sealing cover 4 needs to be put on the valve to be replaced, and then the telescopic screw 7 is rotated to adjust the depth of the sealing cover 4 inserted into the rotating tube 3. At the same time, it is observed through the observation window 5 to ensure that the top of the valve to be replaced can be inserted between the claws 17 on the other rotating seat 9, and then the claws 17 can clamp the top of the valve to be replaced by rotating the adjusting screw 11 on the corresponding rotating seat 9.

[0043] After the top of the valve to be replaced is clamped, the fixed tube at the bottom of the sealing seat 1 is locked, so that the sealing seat 1 can be fixed on the pipeline through the fixing ring 2, and then the rotating handle 10 on the rotating seat 9 outside the sealing cover 4 can be turned to rotate the rotating seat 9 and the adjusting gear 12 at the same time, thereby driving the valve to be replaced to rotate, and the valve to be replaced can be removed from the main pipeline. After the valve to be replaced is removed, the sealing cover 4 and the rotating tube 3 can be rotated by adjusting the handle. When there are two rotating seats 9, the sealing cover 4 and the rotating tube 3 need to be rotated 180 degrees, and at the same time, observation is performed through the observation window 5 to rotate the valve pre-installed in the sealing cover 4 to the top of the interface of the removed valve, and then the valve can be screwed into the interface on the main pipe by rotating the rotating handle 10 in the opposite direction.

[0044] After the valve is installed on the interface, rotate the adjusting screw 11 in the opposite direction so that the adjusting groove 13 on the adjusting gear 12 pushes the slider 16 to rotate the rotating column 14, and then the claw 17 can release the valve. Then loosen the fixing ring 2 at the bottom of the sealing seat 1 and remove the device from the main pipeline. Finally, remove the replaced valve in the sealing cover 4 to complete the pressure replacement of the valve.

[0045] In order to prevent the adjusting gear 12 from loosening after reverse rotation, the adjusting screw 11 and the adjusting gear 12 are preferably a worm gear structure.

[0046] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An auxiliary tool for pipeline pressure valve replacement, characterized by: The invention comprises a sealing seat (1), a fixing ring (2) is hingedly connected to the bottom of the sealing seat (1), a rotating tube (3) is rotatably installed on the top of the sealing seat (1), a sealing cover (4) is slidably arranged in the rotating tube (3), an observation window (5) and at least two rotating seats (9) are arranged on the sealing cover (4), the observation window (5) is located at the top center of the sealing cover (4), two rotating seats (9) are symmetrically arranged along the observation window (5) and penetrate the sealing cover (4), an adjusting component and a clamping component are rotatably arranged on the rotating seat (9), the clamping component cooperates with the adjusting component, and the sealing cover (4) and the rotating tube (3) are also connected through an adjusting handle.

2. The auxiliary tool for pipeline pressure valve replacement according to claim 1, characterized in that: The adjusting assembly comprises an adjusting gear (12), an adjusting screw (11) and an adjusting slot (13); the adjusting gear (12) and the adjusting screw (11) are both rotatably arranged on the rotating seat (9); the adjusting gear (12) is located on the rotating seat (9) inside the sealing cover (4); the adjusting screw (11) completely penetrates the sealing seat (1) and one end of the adjusting screw (11) is meshed with the adjusting gear (12); and the adjusting slot (13) is provided on the adjusting gear (12).

3. The auxiliary tool for pipeline pressure valve replacement according to claim 2, characterized in that: The clamping assembly comprises a rotating column (14), an adjusting block (15), a sliding block (16) and a clamping claw (17); the rotating column (14) is rotatably mounted on the rotating seat (9); the adjusting block (15) and the clamping claw (17) are both fixed on the rotating column (14); and the sliding block (16) is located in the adjusting groove (13) and is fixedly connected to the adjusting block (15).

4. The auxiliary tool for pipeline pressure valve replacement according to claim 1, characterized in that: The adjusting handle comprises a threaded tube (6), a fixing block (8) and a telescopic screw (7); the threaded tube (6) is fixedly arranged on the outer wall of the rotating tube (3); the fixing block (8) is fixedly arranged on the outer wall of the sealing cover (4); the telescopic screw (7) completely penetrates the fixing block (8) and one end of the telescopic screw (7) penetrates into the threaded tube (6) and cooperates with the threaded tube (6).

5. The auxiliary tool for pipeline pressure valve replacement according to claim 1, characterized in that: A limiting groove (18) is also provided on the inner wall of the rotating tube (3), and a limiting block (19) is fixedly provided on the outer wall of the sealing cover (4), and the limiting block (19) is slidably matched with the limiting groove (18).

6. The auxiliary tool for pipeline pressure valve replacement according to claim 1, characterized in that: A rotating handle (10) is fixedly arranged on the rotating seat (9) located outside the sealing cover (4).

7. The auxiliary tool for pipeline pressure valve replacement according to claim 3, characterized in that: The number of the rotating columns (14) and the adjusting grooves (13) is the same and is at least three. The three rotating columns (14) and the three adjusting grooves (13) are evenly distributed around the circumference of the adjusting gear (12).

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