Tool for opening and closing gate valve

Abstract

The utility model provides a tool for opening and closing a gate valve, which is matched with an electric wrench for use, and comprises a connector, a connecting plate, two supporting legs and two cohesion claws, the connector is provided with a concave cavity matched with the electric wrench, the connecting plate is provided with a groove, a connecting shaft is fixedly connected in the groove, and the connecting shaft is fixedly connected with the connecting plate. The connecting plate is fixedly connected with the connector, a concave cavity of the connector and a groove of the connecting plate are arranged in a back-to-back mode, one ends of the supporting legs are hinged to the connecting shaft side by side, the other ends of the supporting legs are hinged to the cohesion claws respectively, and bolts used for opening and closing the cohesion claws are installed on the cohesion claws. The two supporting legs are opened, the outer edge of the gate valve hand wheel is held through the two cohesion claws respectively, the cohesion claws are fixed to the gate valve hand wheel through bolts, then the electric wrench is matched with the connector, the electric wrench is started to drive the connector to rotate, and therefore the gate valve is rotated and matched with the electric wrench, more labor is saved, one-man operation is achieved, manpower is saved, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valve operating tools, in particular to a tool for switching gate valves. Background Art

[0002] The gate valve's opening and closing parts are gates, and the gate's movement direction is perpendicular to the fluid direction, which has the advantages of low flow resistance and less prone to water hammer. Most gate valves are manually operated. Due to the large number of valve operation circles and large torque, two people are usually required to operate together. Each operation takes about ten minutes, which is laborious and time-consuming, affecting the subsequent maintenance work. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a tool for opening and closing a gate valve. In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0004] A tool for opening and closing a gate valve, used in conjunction with an electric wrench, comprises a connecting head, a connecting plate, two supporting legs and two engaging claws, the connecting head being provided with a concave cavity cooperating with the electric wrench, the connecting plate being provided with a groove, a connecting shaft being fixedly connected in the groove, the connecting plate being fixedly connected to the connecting head so that the concave cavity of the connecting head and the groove of the connecting plate are arranged back to back, one end of the supporting legs is hinged on the connecting shaft in parallel, and the other end is hinged to each engaging claw, and bolts for opening and closing the engaging claws are installed on the engaging claws.

[0005] Furthermore, the cross section of the cavity is a regular polygon.

[0006] Furthermore, the connecting plate is a U-shaped stainless steel plate, one end of the connecting shaft is fixedly connected with a nut, and the other end is threadedly connected with a nut.

[0007] Furthermore, a gasket is sleeved on the connecting shaft, and the gasket is located between the connecting plate and the supporting leg.

[0008] Furthermore, the inner wall of the engaging claw is fixedly connected with a plastic pad which matches with the engaging claw.

[0009] Furthermore, a spring is fixedly connected between the legs.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] Open the two legs, hold the outer edge of the gate valve handwheel with two engaging claws, use bolts to fix the engaging claws to the gate valve handwheel, and then match the electric wrench with the connecting head, start the electric wrench to drive the connecting head to rotate, thereby rotating the gate valve. With the electric wrench, it is more labor-saving, single-person operation, labor-saving, more convenient to operate, and improves the efficiency of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0014] Figure 2 This is a left-side structural schematic diagram of an embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of the top view of the structure of an embodiment of the utility model.

[0016] In the above drawings: connecting head 1, connecting plate 2, supporting leg 3, engaging claw 4, concave cavity 5, groove 6, connecting shaft 7, bolt 8, nut 9, washer 10, pad 11, spring 12. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] like Figures 1 to 3 As shown, the embodiment of the utility model proposes a tool for opening and closing gate valves, which is used in conjunction with an electric wrench. The electric wrench can be a high-power fixed torque electric wrench, model P1D-LP-1000EJ, which runs smoothly, has low vibration and low impact. It includes a connector 1, a connecting plate 2, two legs 3 and two engaging claws 4. The connector 1 is provided with a concave cavity 5 that matches the electric wrench. The connecting plate 2 is provided with a groove 6. A connecting shaft 7 is fixedly connected in the groove 6. The connecting plate 2 is fixedly connected to the connector 1, so that the concave cavity 5 of the connector 1 and the groove 6 of the connecting plate 2 are arranged in reverse. One end of the leg 3 is hinged to the connecting shaft 7 in parallel, and the other end is hinged to an engaging claw 4 respectively. The engaging claw 4 is provided with a bolt 8 for opening and closing the engaging claw 4.

[0019] When the gate valve needs to be turned, open the two legs 3, use the two engaging claws 4 to hold the outer edge of the gate valve handwheel respectively, use the bolts 8 to fix the engaging claws 4 on the gate valve handwheel, and then match the electric wrench with the connecting head 1, start the electric wrench to drive the connecting head 1 to rotate, so as to rotate the gate valve. With the electric wrench, it is more labor-saving, single-person operation, labor-saving, more convenient to operate, and improved maintenance efficiency.

[0020] In this embodiment, the cross section of the cavity 5 is a regular polygon. The cavity 5 can be selected from uncommon triangles, squares, pentagons, or hexagons, such as Figure 3 As shown, a square cross-section cavity 5 is used to avoid slipping.

[0021] In this embodiment, if Figure 1 , Figure 2 As shown, the connecting plate 2 is made of a U-shaped stainless steel plate, one end of the connecting shaft 7 is fixedly connected with a nut, and the other end is threadedly connected with a nut 9. After the legs 3 are opened and the engaging claws 4 are fixed to the gate valve handwheel, the nut is turned to press the connecting plate 2 onto the legs 3 to fix the legs 3 onto the connecting plate 2, thereby improving the stability of the legs 3 and facilitating operation.

[0022] In this embodiment, if Figure 2 As shown, a washer 10 is sleeved on the connecting shaft 7, and the washer 10 is located between the connecting plate 2 and the supporting legs 3. The washer 10 is added to fix the two supporting legs 3 to the connecting shaft 7, thereby improving the firmness and stability of the entire tool.

[0023] In this embodiment, if Figure 1 As shown, the inner wall of the clasping claw 4 is fixedly connected with a plastic pad 11 which matches the clasping claw 4. The plastic pad 11 is used to reduce the wear of the clasping claw 4 and improve the firmness of the clasping claw 4.

[0024] In this embodiment, if Figure 1 As shown, a spring 12 is fixedly connected between the legs 3. The arrangement of the spring 12 facilitates the storage of the legs 3.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tool for opening and closing gate valves, used in conjunction with an electric wrench, characterized in that: It includes a connecting head, a connecting plate, two supporting legs and two engaging claws, the connecting head is provided with a concave cavity cooperating with an electric wrench, the connecting plate is provided with a groove, a connecting shaft is fixedly connected in the groove, the connecting plate is fixedly connected to the connecting head so that the concave cavity of the connecting head and the groove of the connecting plate are arranged back to back, one end of the supporting legs is hinged on the connecting shaft in parallel, and the other end is hinged to an engaging claw respectively, and the engaging claws are installed with bolts for opening and closing the engaging claws.

2. A tool for opening and closing a gate valve as claimed in claim 1, characterized in that: The cross section of the concave cavity is a regular polygon.

3. A tool for opening and closing a gate valve as claimed in claim 1, characterized in that: The connecting plate is a U-shaped stainless steel plate. One end of the connecting shaft is fixedly connected with a nut, and the other end is threadedly connected with a nut.

4. A tool for opening and closing a gate valve as claimed in claim 3, characterized in that: A gasket is sleeved on the connecting shaft and is located between the connecting plate and the supporting leg.

5. A tool for opening and closing a gate valve as claimed in claim 1, characterized in that: The inner wall of the engaging claw is fixedly connected with a plastic pad which matches with the engaging claw.

6. A tool for opening and closing a gate valve as claimed in claim 1, characterized in that: A spring is fixedly connected between the legs.

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