Portable auxiliary tool for rapidly operating mechanical valve

Abstract

The utility model discloses a portable auxiliary tool for quickly operating a mechanical valve, which comprises an auxiliary wheel (1), the center of the auxiliary wheel (1) is rotatably connected with a rotating rod (2), and the bottom end of the rotating rod (2) is provided with a plurality of clamping jaws (3) for fixing a valve hand wheel (5). Aiming at a mechanical valve with a hand wheel with a large number of rotation turns but small resistance torque, the large-size valve operating device has the characteristics of assisting in single-hand operation of a large-size valve and improving the operating efficiency of the large-size valve.

Description

Technical Field

[0001] The utility model relates to a valve operating tool, in particular to a portable auxiliary tool for quickly operating a mechanical valve. Background Art

[0002] In a pumped storage power station, due to the two-way operation of the unit, it has two working conditions of power generation and pumping, and the unit undertakes functions such as peak regulation, valley filling, frequency modulation, phase modulation, accident standby and black start in the power system. Therefore, the unit starts and stops frequently during the operation of the hydropower station and needs to be frequently overhauled and maintained. The filling and drainage operations of the draft tube are operations that consume relatively more physical strength and have relatively more operation times during the unit overhaul process. There are many mechanical manual isolation valve operations in this operation. For some valves, the number of turns of the handwheel required for the valve opening adjustment operation is small but the resistance torque is large. At this time, corresponding operating tools such as F-type wrenches can be used to reduce the resistance torque, thereby reducing the operation difficulty; but for some other valves, on the contrary, although the resistance torque of the handwheel rotation required for the valve opening adjustment operation is very small, the size of the handwheel is large, the number of rotation turns is large, and there is no relative auxiliary tool. The operator needs to frequently switch the left and right arms for operation, with a large movement range, which increases the fatigue of the operator, and also takes a long time, increasing the time for the overhaul isolation operation, resulting in low work efficiency for this type of valve operation. Content of the Utility Model

[0003] The purpose of the utility model is to provide a portable auxiliary tool for quickly operating a mechanical valve. The utility model is aimed at a mechanical valve with a large number of turns of the handwheel rotation but a very small resistance torque, and has the characteristics of assisting the single-handed operation of a large-size valve and improving the operation efficiency of the large-size valve.

[0004] The technical solution of the utility model: A portable auxiliary tool for quickly operating a mechanical valve includes an auxiliary wheel. A rotating rod is rotatably connected to the center of the auxiliary wheel, and a plurality of claws for fixing the valve handwheel are arranged at the bottom end of the rotating rod.

[0005] In the foregoing portable auxiliary tool for quickly operating a mechanical valve, an anti-collision sphere is arranged at the bottom end of each claw.

[0006] In the foregoing portable auxiliary tool for quickly operating a mechanical valve, the auxiliary wheel is in an ellipsoidal shape.

[0007] In the foregoing portable auxiliary tool for quickly operating a mechanical valve, the length of the major axis of the auxiliary wheel is 40 - 50 mm, and the length of the minor axis of the auxiliary wheel is 30 - 40 mm.

[0008] In the aforementioned portable auxiliary tool for quickly operating a mechanical valve, a through hole for the rotating rod to pass through is provided at the center of the auxiliary wheel. A bearing is provided inside the through hole, a plug is provided above the through hole, and a limit sleeve is provided below the through hole. The rotating rod passes through the limit sleeve and is connected to the bearing through the auxiliary wheel.

[0009] In the aforementioned portable auxiliary tool for quickly operating a mechanical valve, three clamping claws are provided and are distributed in a triangular shape. The angles between the three clamping claws are 120° with each other, and the angles between the three clamping claws and the axis of the rotating rod are all 30°.

[0010] In the aforementioned portable auxiliary tool for quickly operating a mechanical valve, the cross-section of the clamping claw is in a conical shape with a larger upper part and a smaller lower part.

[0011] In the aforementioned portable auxiliary tool for quickly operating a mechanical valve, anti-slip patterns are provided on the inner side of the clamping claw.

[0012] In the aforementioned portable auxiliary tool for quickly operating a mechanical valve, an anti-slip sleeve is sleeved on the clamping claw.

[0013] In the aforementioned portable auxiliary tool for quickly operating a mechanical valve, the length of the clamping claw is 55 - 65 mm.

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

[0015] The present utility model is mainly aimed at mechanical valves that require a large number of handwheel rotation turns but have a very small resistance moment during the on-site mechanical valve opening degree adjustment operation. Using this tool can effectively improve the operation efficiency of production and operation personnel when operating such valves, save physical strength, effectively reduce the operation time, and thus shorten the overall maintenance isolation time.

[0016] Moreover, this tool has a small and compact shape, is convenient to carry, can be inserted and used at any time, and can be pulled out and taken away at any time. It is flexible to use, applicable to valve handwheels with a width of 5 - 30 mm and a thickness of 2 - 20 mm, and has a wide range of applicable valve types. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is a diagram of the use state of the present utility model.

[0019] The reference signs in the drawings are: 1, auxiliary wheel; 11, plug; 12, limit sleeve; 2, rotating rod; 3, clamping claw; 4, anti-collision sphere; 5, valve handwheel. Detailed Description of the Embodiment

[0020] The following further illustrates the present utility model in conjunction with embodiments, but it shall not be used as a basis for limiting the present utility model.

[0021] Embodiment:

[0022] As Figure 1 - Figure 2 shown, a portable auxiliary tool for quickly operating a mechanical valve includes an auxiliary wheel 1. A rotating rod 2 is rotatably connected to the center of the auxiliary wheel 1. A plurality of claws 3 for fixing a valve handwheel 5 are provided at the bottom end of the rotating rod 2.

[0023] An anti-collision sphere 4 is provided at the bottom end of each claw 3.

[0024] The provided anti-collision sphere 4 plays a protective role to prevent the sharp claws 3 from causing damage to operators or equipment.

[0025] The auxiliary wheel 1 is in an ellipsoidal shape, making the auxiliary wheel 1 more conform to the user's palm and more convenient for the user to grip.

[0026] The major axis length of the auxiliary wheel 1 is 45 - 55 mm, preferably 50 mm, and the minor axis length of the auxiliary wheel 1 is 35 - 45 mm, preferably 40 mm. The size design of the auxiliary wheel 1 facilitates the operator's grip.

[0027] A through hole for the rotating rod 2 to pass through is provided at the center of the auxiliary wheel 1. A bearing is provided inside the through hole. A plug 11 is provided above the through hole, and a limiting sleeve 12 is provided below the through hole. The rotating rod 2 passes through the limiting sleeve 12 and is connected to the bearing through the auxiliary wheel 1. The rotating rod 2 passes through the limiting sleeve 12 and is connected to the bearing, enabling the rotating link to only rotate circumferentially and not move up and down, facilitating single-handed ring-shaped rotation operation.

[0028] The plug 11 is in an ellipsoidal shape, facilitating gripping and enhancing the strength of the auxiliary wheel.

[0029] The cross-section of the claw 3 is in a conical shape with a larger upper part and a smaller lower part, increasing the applicable handwheel size range of the claw.

[0030] The claws 3 are provided in three and are distributed in a triangular shape. The angles between the three claws 3 are 120° with each other, and the angles between the three claws 3 and the axis of the rotating rod 2 are all 30°. The length of the claw 3 is 55 - 65 mm. It can better match mechanical valve handwheels 5 of different sizes.

[0031] Anti-slip patterns are provided on the inner side of the claw 3. Or an anti-slip sleeve is sleeved on the claw 3. Through the anti-slip design of the claw 3, the friction between the claw 3 and the handwheel is increased, the support and fixation stability are improved, and the tool is prevented from slipping during operation.

[0032] During operation, the three jaws 3 are respectively clamped at the triangular area connected between the ring of the valve handwheel 5 and the rotating arm inside the valve handwheel 5 for fixation. Two of the jaws 3 are on the inner side of the handwheel, and one jaw 3 is on the outer side of the handwheel. As Figure 2 shown, during operation, the operator can hold the auxiliary wheel 1 of the operating tool with one hand and rotate the arm clockwise or counterclockwise. The valve handwheel 5 is driven to rotate through the connecting rod and the jaw 3, so as to realize the opening or closing of the mechanical valve. There is no need to frequently change the arm operation, and the operation is more labor-saving, convenient and time-saving, improving the operation efficiency of large-size mechanical valves.

[0033] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some of the technical features can be equivalently replaced; and all such modifications and replacements should fall within the protection scope of the appended claims of the present invention.

Claims

1. A portable auxiliary tool for quickly operating a mechanical valve, characterized in that: It includes an auxiliary wheel (1). A rotary rod (2) is rotatably connected to the center of the auxiliary wheel (1). A plurality of claws (3) for fixing a valve handwheel (5) are provided at the bottom end of the rotary rod (2).

2. The portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: An anti-collision sphere (4) is provided at the bottom end of each claw (3).

3. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: The auxiliary wheel (1) is ellipsoidal in shape.

4. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: The major axis length of the auxiliary wheel (1) is 40 - 50 mm, and the minor axis length of the auxiliary wheel (1) is 30 - 40 mm.

5. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: A through hole for the rotary rod (2) to pass through is provided at the center of the auxiliary wheel (1). A bearing is provided inside the through hole. A plug (11) is provided above the through hole, and a limit sleeve (12) is provided below the through hole. The rotary rod (2) passes through the auxiliary wheel (1) from inside the limit sleeve (12) and is connected to the bearing.

6. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: The claws (3) are arranged in three and are distributed in a triangular shape. The angles between the three claws (3) are 120° with each other, and the angles between the three claws (3) and the axis of the rotary rod (2) are all 30°.

7. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: The cross-section of the claw (3) is in a conical shape with a larger upper part and a smaller lower part.

8. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: Anti-slip patterns are provided on the inner side of the claw (3).

9. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: An anti-slip sleeve is sleeved on the claw (3).

10. A portable auxiliary tool for quickly operating a mechanical valve according to claim 1, characterized in that: The length of the claw (3) is 55 - 65 mm.

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