Valve opening and closing tool for outdoor valve well

Abstract

The utility model belongs to the technical field of valve opening and closing tools, and particularly relates to a valve opening and closing tool for an outdoor valve well, which comprises a connecting disc, a connecting rod and three clamping jaws, and the three clamping jaws are uniformly distributed on the connecting disc; the clamping jaw comprises a fixed jaw body and a movable jaw body, the fixed jaw body is fixedly connected with the connecting disc, the movable jaw body is hinged to the fixed jaw body, and a first reset spring is arranged between the movable jaw body and the fixed jaw body. One end of the connecting rod is fixedly connected with the connecting disc, and the other end of the connecting rod is fixedly provided with a handle rod; the clamping jaw is inserted into the valve hand wheel, and the fixing jaw makes contact with a connecting rib of the valve hand wheel. And the movable claw is driven to rotate through the movement of the driving disc, so that the movable claw hooks the outer edge of the hand wheel. Through the structural arrangement, the tool can be effectively prevented from being separated from a valve hand wheel during use; therefore, the defects in the prior art are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve opening and closing tools, and particularly relates to a tool for opening and closing valves in an outdoor valve well. Background Art

[0002] In building installation projects, currently, the operation of opening and closing valves in outdoor valve wells is generally carried out by people entering the well chamber, which takes a long time. Especially during the commissioning and acceptance stage, the valves need to be repeatedly opened and closed, posing great safety hazards. Therefore, corresponding tools are used in the prior art for operation, and no personnel need to enter during the operation process.

[0003] For example, a valve opening and closing operation device disclosed in the patent application No. 202022471285.0 can insert the claw into the handwheel of the valve, and the operator can open and close the valve without climbing up and down. Moreover, for valves in some narrow spaces, it can also directly open and close, reducing the labor intensity of the operator and saving time and effort. However, when its claw is only inserted into the handwheel, it is extremely easy to fall off during use, thus scratching the surface of the valve and even possibly causing the operator to be injured due to sudden unloading of force. Summary of the Utility Model

[0004] In view of the above technical problems, the utility model provides a tool for opening and closing valves in an outdoor valve well, which can be limited during the opening and closing process to prevent the tool from being separated from the valve.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A tool for opening and closing valves in an outdoor valve well includes a connection disk, a connecting rod, and claws. There are three claws, and the three claws are evenly distributed on the connection disk; each claw includes a fixed claw and a movable claw. The fixed claw is fixedly connected to the connection disk, the movable claw is hinged to the fixed claw, and a first return spring is arranged between the movable claw and the fixed claw; one end of the connecting rod is fixedly connected to the connection disk, and a handle rod is fixed to the other end of the connecting rod; a movable drive disk is arranged at the connection disk, and the movement of the drive disk drives the movable claw to rotate; the lower end of the movable claw contacts the upper surface of the drive disk.

[0007] It further includes a drive rod. The connecting rod is a hollow rod; the drive rod is slidably connected to the connecting rod. One end of the drive rod passes through the connection disk and extends out and is fixedly connected to the drive disk; the other end of the drive rod passes through the connecting rod and extends out and is fixedly connected to a push rod.

[0008] A second return spring is arranged between the push rod and the connecting rod.

[0009] The second return spring is a compression spring, which is sleeved outside the drive rod.

[0010] A connecting sleeve is slidably connected to the bar, and a jack for inserting the push rod is provided on the connecting sleeve.

[0011] A roller is rotatably connected to the lower end of the movable claw.

[0012] The first return spring is a tension spring.

[0013] It further includes a support frame, and a support sleeve is fixedly connected to the upper end of the support frame; the connecting rod is rotatably connected to the support sleeve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By inserting the claw into the valve handwheel, the fixing claw contacts the connecting rib of the valve handwheel; by moving the driving disc, the movable claw is driven to rotate, so that the movable claw hooks the outer edge of the handwheel. Through this structural arrangement, it can effectively prevent the tool from being disengaged (pulled out) from the valve handwheel during use; thus overcoming the defects existing in the prior art.

[0016] A push rod and a bar are provided. After the claw is inserted into the valve handwheel, the movable claw can be rotated by holding the push rod and the bar. Moreover, a connecting sleeve is also provided, and the position of the push rod can be fixed through the connecting sleeve to limit its movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the use state of the present utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of A in

[0019] Figure 3 is Figure 1 a partial enlarged view of B in

[0020] Figure 4 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 5 is Figure 4 a partial enlarged view of C in

[0022] Figure 6 is a sectional view of the present utility model;

[0023] Among them: 1 is a connecting disc, 2 is a connecting rod, 3 is a claw, 4 is a fixing claw, 5 is a movable claw, 6 is a first return spring, 7 is a bar, 8 is a driving disc, 9 is a driving rod, 10 is a push rod, 11 is a second return spring, 12 is a connecting sleeve, 13 is a jack, 14 is a roller, 15 is a support frame, 16 is a support sleeve, 17 is a valve handwheel, and 18 is a connecting rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] As Figures 1-6 shown, an outdoor valve pit valve opening and closing tool includes a connection disk 1, a connecting rod 2, and a claw 3. There are three claws 3, and the three claws 3 are evenly distributed along the center of the connection disk 1.

[0026] The claw 3 includes a fixed claw 4 and a movable claw 5. The fixed claw 4 is fixedly connected to the connection disk 1, and the movable claw 5 is hinged to the fixed claw 4; specifically, the lower part of the movable claw 5 is hinged to the upper end of the fixed claw 4, and a first return spring 6 is provided between the movable claw 5 and the fixed claw 4; when the movable claw 5 rotates, the first return spring 6 can generate elastic potential energy.

[0027] One end of the connecting rod 2 is fixedly connected to the connection disk 1, and a handle rod 7 is fixed to the other end of the connecting rod 2; a movable drive disk 8 is provided at the connection disk 1, and the lower end of the movable claw 5 contacts the upper surface of the drive disk 8; the movement of the drive disk 8 drives the movable claw 5 to rotate. The first return spring 6 is preferably a tension spring, and the two ends of the tension spring are respectively hinged to the movable claw 5 and the fixed claw 4.

[0028] When in use, the operator stands on the ground (outdoor), holds the connecting rod 2 and inserts the claw 3 into the gap between the connecting ribs 18 of the valve handwheel 17; then, the movement of the drive disk 8 drives the movable claw 5 to rotate, and the angle between the movable claw 5 and the fixed claw 4 increases; finally, hold the handle rod 7 and drive the connecting rod 2 and the connection disk 1 to rotate. During the rotation process, the fixed claw 4 contacts the connecting rib 18, and the movable claw 5 hooks the outer edge of the handwheel; therefore, while not interfering with the rotation, it can be avoided from moving out and disengaging during the rotation process.

[0029] Furthermore, various structures can be adopted to realize the movement of the drive disk 8. The following structure is preferably adopted: specifically, a drive rod 9 is provided.

[0030] The connecting rod 2 is a hollow rod, the drive rod 9 is slidably connected to the connecting rod 2, and both ends of the drive rod 9 can pass through both ends of the connecting rod 2 and extend out. Specifically, one end of the drive rod 9 passes through the connection disk 1 and extends out and is fixedly connected to the drive disk 8; the other end of the drive rod 9 passes through the connecting rod 2 and extends out and is fixedly connected to a push rod 10.

[0031] In use, hold the connecting rod 2 and insert the claw 3 into the gaps between the connecting ribs 18 of the valve handwheel 17; then, hold the lever 7 and the push rod 10 simultaneously, so that the push rod 10 pushes the drive rod 9 and the drive disk 8 to move forward; the forward movement of the drive disk 8 pushes the movable claw 5 to rotate, and the angle between the movable claw 5 and the fixed claw 4 increases. Finally, hold the lever 7 and the push rod 10 and drive the connecting rod 2 and the connecting disk 1 to rotate, thereby driving the valve handwheel 17 to rotate.

[0032] Further, a second return spring 11 is provided between the push rod 10 and the connecting rod 2. The second return spring 11 is preferably a compression spring, which is sleeved outside the drive rod 9. The two ends of the second return spring 11 are respectively abutted against the connecting rod 2 and the push rod 10. When holding the lever 7 and the push rod 10 simultaneously, the distance between the push rod 10 and the lever 7 is shortened, and the second return spring 11 is compressed to generate elastic potential energy.

[0033] Further, when rotating the valve handwheel 17 through the above structure, it is necessary to hold the lever 7 and the push rod 10 simultaneously, which is somewhat inconvenient. Therefore, when holding the lever 7 and the push rod 10 simultaneously, the distance between the push rod 10 and the lever 7 is shortened; by pushing the connecting sleeve 12 to move, the inserting rod is inserted into the inserting hole 13. After use, push the connecting sleeve 12 to move in the reverse direction, so that the inserting rod is removed from the inserting hole 13. The second return spring 11 releases the elastic potential energy, so that the push rod 10, the drive rod 9, and the drive disk 8 move backward and reset; the first return spring 6 releases the elastic potential energy to reset the movable claw 5; finally, this tool can be taken off.

[0034] Further, in order to reduce friction, a roller 14 is rotatably connected to the lower end of the movable claw 5, and the roller 14 contacts the drive disk 8.

[0035] Further, it further includes a support frame 15, and a support sleeve 16 is fixedly connected to the upper end of the support frame 15; the connecting rod 2 is rotatably connected to the support sleeve 16. When using this tool, it can be supported by the support frame 15, and the operator only needs to rotate.

[0036] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. An outdoor valve well switch valve tool, characterized by: The invention comprises a connecting disk (1), a connecting rod (2) and a claw (3), wherein three claws (3) are provided and the three claws (3) are evenly distributed on the connecting disk (1); the claw (3) comprises a fixed claw (4) and a movable claw (5), wherein the fixed claw (4) is fixedly connected to the connecting disk (1), the movable claw (5) is hinged to the fixed claw (4), and a first reset spring (6) is provided between the movable claw (5) and the fixed claw (4); one end of the connecting rod (2) is fixedly connected to the connecting disk (1), and a handle (7) is fixed to the other end of the connecting rod (2); a movable driving disk (8) is provided at the connecting disk (1), and the movable claw (5) is driven to rotate by the movement of the driving disk (8); the lower end of the movable claw (5) contacts the upper surface of the driving disk (8).

2. The outdoor valve well switch valve tool according to claim 1, characterized in that: It also includes a driving rod (9), wherein the connecting rod (2) is a hollow rod; the driving rod (9) is slidably connected to the connecting rod (2), one end of the driving rod (9) passes through the connecting disk (1), extends out, and is fixedly connected to the driving disk (8); the other end of the driving rod (9) passes through the connecting rod (2), extends out, and is fixedly connected to a push rod (10).

3. The outdoor valve well switch valve tool according to claim 2, characterized in that: A second return spring (11) is provided between the push rod (10) and the connecting rod (2).

4. The outdoor valve well switch valve tool according to claim 3, characterized in that: The second return spring (11) is a compression spring, which is sleeved outside the drive rod (9).

5. The outdoor valve well switch valve tool according to claim 2, characterized in that: A connecting sleeve (12) is slidably connected to the handle bar (7), and a socket (13) for plugging into the push rod (10) is provided on the connecting sleeve (12).

6. The outdoor valve well switch valve tool according to claim 1, characterized in that: The lower end of the movable claw (5) is rotatably connected to a roller (14).

7. The outdoor valve well switch valve tool according to claim 1, characterized in that: The first return spring (6) is a tension spring.

8. The outdoor valve well switch valve tool according to claim 1, characterized in that: It also comprises a support frame (15), the upper end of which is fixedly connected to a support sleeve (16); and the connecting rod (2) is rotatably connected to the support sleeve (16).

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