Clamp for valve maintenance

Abstract

The utility model discloses a clamp for valve overhauling, and relates to the technical field of valve overhauling, in particular to the clamp for valve overhauling, which comprises a base, a sliding block, a flexible clamping assembly, an adjusting assembly, a positioning assembly, a rotating shaft, a supporting block, an adjusting plate, a sliding groove hole and a clamping plate, the rotating shaft is arranged on the upper side of the base, and the adjusting plate is arranged on the upper side of the rotating shaft. A sliding groove hole is formed in the upper side of the adjusting plate, sliding blocks are arranged on the two sides of the interior of the sliding groove hole, an adjusting assembly is arranged between the adjusting plate and the sliding blocks, a positioning assembly is arranged between the base and the rotating shaft, clamping plates are arranged on the upper sides of the sliding blocks, and flexible clamping assemblies are arranged on the clamping plates. Compared with the prior art, the valve clamping device has the advantages that valves in different shapes can be conveniently clamped; the direction of the valve can be conveniently adjusted for maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of valve maintenance, in particular to a clamp for valve maintenance. Background Art

[0002] During the inspection and maintenance of the valve, it is usually necessary to disassemble, inspect and repair various parts of the valve. However, due to the complex structure and numerous parts of the valve, a clamp is required to clamp the valve for easy disassembly.

[0003] The auxiliary maintenance fixture for a rising stem valve described in the publication number CN210909689U includes a first clamp, a second clamp and a fixing member, wherein the second clamp is used to dock with the first clamp; the fixing member is used to fix the docked first clamp and the second clamp to form a threaded sleeve, and the threaded sleeve cooperates with the valve stem thread of the rising stem valve. When used, if the system needs to inspect the rising stem valve in a closed state, then after the valve is closed, the auxiliary maintenance fixture is installed at the upper position of the valve stem, and the valve stem bracket is used to press the fixture downward to ensure that the valve stem is in a closed state to prevent the medium pressure from accidentally pushing the valve open; if the system needs to inspect the rising stem valve in an open state, then after the valve is opened, the auxiliary maintenance fixture is installed at the lower position of the valve stem, and the mutual force between the auxiliary maintenance fixture and the valve body is used to prevent the valve stem from moving downward, ensuring that the valve is in an open state to prevent the valve from cutting off the flow of the medium.

[0004] Although the above valve fixture solves certain problems, it still has the following disadvantages:

[0005] (1) The shape of the valve clamped by the clamp is fixed. When valves of different shapes need to be clamped, the contact surface between the clamp and the valve is easily reduced, and the external surface of the valve is easily damaged under extrusion.

[0006] (2) Since the valve has multiple connections on the conveying pipeline, the direction of the valve needs to be adjusted when removing the seal inside the valve. The above-mentioned fixture is not convenient and stable in turning. Utility Model Content

[0007] The utility model aims to provide a clamp for valve maintenance.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A valve maintenance fixture, comprising:

[0010] A base, wherein the upper end of the base is rotatably connected to a rotating shaft, a front side and a rear side of the upper end of the base are respectively fixedly connected to support blocks, an upper end of the rotating shaft is fixedly connected to an adjustment plate, and a sliding slot hole is provided on the upper side of the adjustment plate;

[0011] Slide blocks, the slide blocks are respectively arranged on both sides of the sliding slot, the upper ends of the slide blocks are fixedly connected with clamping plates, and the sides of the clamping plates close to each other are provided with a plurality of evenly distributed movable holes;

[0012] A flexible clamping assembly, the flexible clamping assembly is arranged on the clamping plate, the flexible clamping assembly comprises a movable rod, a clamping column and a compression spring, the movable rod is arranged inside the movable hole, the clamping column is fixedly connected to one end of the movable rod close to each other, the compression spring is sleeved on the outside of the movable rod, and the compression spring is located between the clamping plate and the side of the clamping column away from each other;

[0013] An adjustment component, wherein the adjustment component is arranged between the base and the adjustment plate;

[0014] A positioning component is arranged between the rotating shaft and the supporting block.

[0015] Furthermore, the adjustment component comprises:

[0016] A positive and negative threaded screw rod, wherein the positive and negative threaded screw rod is arranged inside the sliding slot hole, and the two ends of the positive and negative threaded screw rod are respectively rotatably connected to the two sides inside the sliding slot hole, and the sliders on both sides are respectively threadedly connected to the two sides outside the positive and negative threaded screw rod;

[0017] The adjusting head is rotatably connected to two sides of the outside of the adjusting plate, and the adjusting head is fixedly connected to two ends of the positive and negative threaded rods.

[0018] Furthermore, the positioning component includes:

[0019] A worm wheel, the worm wheel is fixedly connected to the rotating shaft, and the worm wheel is located between the base and the adjusting plate;

[0020] A worm, the worm is arranged between the support blocks, the two ends of the worm are respectively rotatably connected to the side of the support block close to each other, and the worm is meshed with the worm wheel;

[0021] A servo motor is fixedly connected to the front end of the outer portion of the support block, and the servo motor is adapted to the worm.

[0022] Furthermore, one end of the movable rods that is away from each other is fixedly connected with a blocking piece, and the blocking piece is located on a side of the clamping plates that is away from each other.

[0023] Furthermore, the movable rods are all slidably connected to the inside of the movable hole.

[0024] The utility model provides a valve maintenance fixture, which has the following beneficial effects:

[0025] (1) The movable rod slides inside the movable hole, and the clamping columns are forced to approach each other and clamp on the outer surface of the valve under the pressure of the extrusion spring, which is convenient for clamping valves of various shapes and avoids damage to the outer surface of the valve due to the reduction of the clamping area.

[0026] (2) The worm gear drives the worm wheel to rotate, so that the rotating shaft can achieve self-locking rotation, which is convenient for rotating and adjusting the direction of the valve that needs to be repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] Figure 1 The utility model is a three-dimensional diagram of a valve maintenance fixture.

[0029] Figure 2 It is a three-dimensional structure of a partial structure of a valve maintenance fixture of the utility model. Figure 1 .

[0030] Figure 3 It is a three-dimensional structure of a partial structure of a valve maintenance fixture of the utility model. Figure 2 .

[0031] Figure 4 It is a three-dimensional structure of a partial structure of a valve maintenance fixture of the utility model. Figure 3 .

[0032] Markings in the figure: 1. Base; 2. Slider; 3. Flexible clamping assembly; 301. Movable rod; 302. Clamping column; 303. Extrusion spring; 4. Adjustment assembly; 401. Positive and negative threaded screw; 402. Adjustment head; 5. Positioning assembly; 501. Worm gear; 502. Worm; 503. Servo motor; 6. Rotating shaft; 7. Support block; 8. Adjustment plate; 9. Sliding slot; 10. Clamping plate; 11. Movable hole; 12. Baffle. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Embodiment 1:

[0036] like Figures 1 to 4 As shown, this embodiment proposes a valve maintenance fixture, including a base 1, a slider 2, a flexible clamping component 3, an adjustment component 4, a positioning component 5, a rotating shaft 6, a support block 7, an adjustment plate 8, a sliding slot 9 and a clamping plate 10 arranged at the upper end of the slider.

[0037] Among them, the upper side of the base 1 is rotatably connected to a rotating shaft 6, and the upper end of the rotating shaft 6 is fixedly connected to an adjusting plate 8. A sliding slot hole 9 is opened at the upper end of the adjusting plate 8, and a positive and negative threaded rod 401 is arranged inside the sliding slot hole 9. The two sides of the positive and negative threaded rod 401 are respectively threadedly connected to the sliders 2 on both sides of the sliding slot hole 9. The positive and negative threaded rod 401 is controlled to rotate by rotating the adjusting head 402 connected to the two sides of the outside of the adjusting plate 8 to drive the sliders 2 on both sides of the sliding slot hole 9 to move closer to or away from each other, and the clamping plate 10 fixedly connected to the upper end of the slider 2 is brought closer to each other to clamp the valve that needs to be inspected.

[0038] However, due to reasons such as transportation, the outer shape of the valve is irregular, so a number of evenly distributed movable holes 11 are opened on the side where the clamping plates 10 are close to each other, and a movable rod 301 that can slide to both sides is arranged inside each movable hole 11, and the ends of the movable rods 301 close to each other are fixedly connected to a clamping column 302 with a rubber head, and an extrusion spring 303 is sleeved on the outside of each movable rod 301. The extrusion spring 303 squeezes the clamping columns 302 closer to each other on the side where the clamping columns 302 are away from each other and on the side where the clamping plates 10 are close to each other, and cooperates with the clamping plates 10 to clamp the valve that needs to be repaired, so that according to the different shapes of the valve appearance, the clamping columns 302 at the corresponding positions are pressed against the outside of the valve by the extrusion springs 303, thereby increasing the contact area between the clamp and the valve and reducing the possibility of squeezing and deforming the valve.

[0039] In order to prevent the extrusion spring 303 from ejecting the movable rod 301 from the inside of the movable hole 11, a blocking piece 12 is fixedly connected to the end of the movable rod 301 that is away from each other. The blocking piece 12 is on the side of the splint 10 that is away from each other to prevent the movable rod 301 from being ejected from the inside of the blocking piece 12.

[0040] Embodiment 2:

[0041] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0042] Since the valve has openings in multiple directions, it is necessary to adjust the angle and direction of the valve when the seal inside the valve is pushed out for inspection. In order to facilitate the angle adjustment of the clamped valve, a support block 7 is fixedly connected to the front and back of one side of the upper end of the base 1, and a worm 502 is arranged between the support blocks 7. The two ends of the worm 502 and the side of the support block 7 that is close to each other are rotatably connected together, and the worm 502 is driven by a servo motor 503 fixedly connected to the front side of the outside of the support block 7. The worm 502 and the worm wheel 501 fixedly connected to the rotating shaft 6 are meshed together. The worm can drive the worm wheel, and the worm wheel cannot drive the worm. The one-way driving characteristic of the worm can realize the self-positioning rotation of the adjustment plate 8, which is convenient for rotating the valve in all directions.

[0043] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve maintenance fixture, characterized in that: include: A base (1), the upper end of the base (1) is rotatably connected to a rotating shaft (6), one side of the upper end of the base (1) is fixedly connected to support blocks (7) at the front and rear, the upper end of the rotating shaft (6) is fixedly connected to an adjustment plate (8), and a sliding slot (9) is provided on the upper side of the adjustment plate (8); Slide blocks (2), the slide blocks (2) are respectively arranged on both sides of the sliding slot hole (9), the upper ends of the slide blocks (2) are fixedly connected with clamping plates (10), and the sides of the clamping plates (10) close to each other are provided with a plurality of evenly distributed movable holes (11); A flexible clamping assembly (3), the flexible clamping assembly (3) is arranged on the clamping plate (10), the flexible clamping assembly (3) comprises a movable rod (301), a clamping column (302) and a compression spring (303), the movable rod (301) is arranged inside the movable hole (11), the clamping column (302) is fixedly connected to one end of the movable rod (301) that is close to each other, the compression spring (303) is sleeved on the outside of the movable rod (301), and the compression spring (303) is located between the clamping plate (10) and the side of the clamping column (302) that is away from each other; An adjustment component (4), wherein the adjustment component (4) is arranged between the base (1) and the adjustment plate (8); A positioning assembly (5), wherein the positioning assembly (5) is arranged between the rotating shaft (6) and the supporting block (7).

2. A valve maintenance fixture according to claim 1, characterized in that: The regulating component (4) comprises: A positive and negative threaded rod (401), wherein the positive and negative threaded rod (401) is arranged inside the sliding slot (9), and the two ends of the positive and negative threaded rod (401) are respectively rotatably connected to the two sides inside the sliding slot (9), and the sliders (2) on both sides are respectively threadedly connected to the two sides outside the positive and negative threaded rod (401); The adjusting head (402) is rotatably connected to two sides of the outside of the adjusting plate (8), and the adjusting head (402) is fixedly connected to two ends of the positive and negative threaded rods (401).

3. A valve maintenance fixture according to claim 1, characterized in that: The positioning component (5) comprises: A worm gear (501), the worm gear (501) is fixedly connected to the rotating shaft (6), and the worm gear (501) is located between the base (1) and the adjustment plate (8); A worm (502), wherein the worm (502) is disposed between the support blocks (7), and both ends of the worm (502) are rotatably connected to the sides of the support blocks (7) that are close to each other, and the worm (502) is meshed with the worm wheel (501); A servo motor (503) is fixedly connected to the front end of the support block (7), and the servo motor (503) is compatible with the worm (502).

4. A valve maintenance fixture according to claim 1, characterized in that: The ends of the movable rods (301) that are away from each other are fixedly connected with blocking pieces (12), and the blocking pieces (12) are located on the side of the clamping plates (10) that are away from each other.

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