Telescopic electric insulating rod

Abstract

The utility model discloses a telescopic electric insulating rod, which comprises a first electric insulating rod, a second electric insulating rod is movably inserted into the first electric insulating rod, one end and the other end of the first electric insulating rod are respectively provided with a through hole, and a plurality of groups of through holes are movably provided with clamping blocks in a penetrating manner. The threaded area of the first electric insulation rod is in threaded connection with a threaded sleeve, the threaded sleeve is connected with an inner conical sleeve, the conical inner wall of the inner conical sleeve is matched with and makes contact with the inclined faces of the multiple sets of clamping blocks, and the multiple sets of clamping blocks clamp and fix the second electric insulation rod. According to the utility model, the threaded sleeve at the first electric insulation rod is rotated to drive the inner conical sleeve, so that the clamping block is abutted against and clamped with the outer wall of the second electric insulation rod, or the abutting and clamping of the clamping block to the second electric insulation rod are canceled, the pulling length of the second electric insulation rod can be flexibly controlled, and the pulling length of the second electric insulation rod can be conveniently adjusted according to actual electric power working requirements. And the length can be flexibly adjusted for use.

Description

Technical Field

[0001] This utility model relates to the technical field of power insulating rods, and in particular to a telescopic power insulating rod. Background Technology

[0002] Electrical insulating poles are important tools used in power systems for live-line work, equipment maintenance, and operation. Their main function is to ensure a safe insulating distance between operators and live parts, prevent electric shock accidents, and ensure the safe operation of power work.

[0003] While existing telescopic electrical insulating rods can ensure a safe insulation distance between operators and live conductors, and allow for operations such as opening and closing the circuit breaker at a certain distance, their length adjustment typically relies on either a clamp-type telescopic fixing method (a clamp is fitted over the telescopic section of the insulating rod, with multiple evenly spaced grooves or protrusions on the inner wall of the clamp. Corresponding protrusions or grooves are provided on the telescopic section) or a bolt-fastening telescopic fixing method (bolt holes are provided near the connection of the telescopic sections of the insulating rod, and bolts are used to fix adjacent sections through these bolt holes. Bolts are usually equipped with nuts and washers to increase the tightening force and prevent loosening). This fixing method only allows for changes in the fixed length; adjustments beyond the fixed length are relatively inconvenient and inflexible in use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a retractable power insulation rod.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A retractable electrical insulating rod includes a first electrical insulating rod, into which a second electrical insulating rod is movably inserted. One end and the other end of the first electrical insulating rod have openings, and multiple sets of clamping blocks movably pass through each opening. A threaded sleeve is threadedly connected to the threaded area of ​​the first electrical insulating rod, and an inner conical sleeve is connected to the threaded sleeve. The conical inner wall of the inner conical sleeve is adapted to and contacts the inclined surfaces of the multiple sets of clamping blocks, which clamp and fix the second electrical insulating rod.

[0007] Preferably, a threaded ring is connected to the second electrical insulating rod, and a cover is threadedly connected to the threaded ring. A hook is provided inside the cover, and the hook is connected to one end of the second electrical insulating rod.

[0008] Preferably, the first electrical insulating rod has a groove at one end and the other end, and multiple sets of the grooves are slidably connected to slide rails, and multiple sets of slide rails are connected to the second electrical insulating rod.

[0009] Preferably, the threaded sleeve has multiple sets of protrusions distributed in a ring.

[0010] Preferably, a rubber sleeve is connected to the first electrically insulating rod.

[0011] Preferably, the contact area between the second electrically insulating rod and the multiple sets of clamping blocks is bonded with a rubber strip.

[0012] Preferably, the multiple sets of clamps are engaged with the contact points of the second electrically insulating rod.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By cooperating with the first electric insulating rod, the second electric insulating rod, the through-hole, the clamping block, the inner conical sleeve, and the threaded sleeve, the clamping block can be tightly clamped against the outer wall of the second electric insulating rod by rotating the threaded sleeve at the first electric insulating rod, or the clamping block can be released from the clamping of the second electric insulating rod. This allows for flexible control of the length of the second electric insulating rod being pulled out, and can be easily adjusted according to the actual power work requirements.

[0015] 2. By connecting the threaded ring, cover, and hook with the threaded ring, the cover can shield the hook, thus preventing the hook from accidentally touching people or objects and causing injury or damage when the whole unit is moved. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a retractable power insulation rod proposed in this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the first electrical insulating rod, the inner conical sleeve, and the threaded sleeve;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the first electrical insulating rod, the sliding groove, and the rubber sleeve;

[0019] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the inner tapered sleeve and the threaded sleeve;

[0020] Figure 5 for Figure 1 A schematic diagram of the structure of the hook body, threaded ring, and cover.

[0021] In the diagram: 1. First electrical insulating rod; 2. Second electrical insulating rod; 3. Through opening; 4. Clamping block; 5. Inner conical sleeve; 6. Threaded sleeve; 7. Hook body; 8. Threaded ring; 9. Cover body; 10. Rubber strip; 11. Slide rail; 12. Slide groove; 13. Rubber sleeve; 14. Protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, referring to Figures 1 to 5 A retractable electrical insulating rod includes a first insulating rod 1, which is one of the main parts of the insulating rod. The first insulating rod 1 has a hollow structure and is made of high-strength, high-insulation materials, such as glass fiber reinforced epoxy resin, to ensure effective insulation under high voltage conditions and protect the safety of operators. A second insulating rod 2 is movably inserted into the first insulating rod 1. The second insulating rod 2 is also made of a material with excellent insulation properties. One end of the second insulating rod 2 is inserted into the first insulating rod 1 and can slide freely within the first insulating rod 1 to adjust the overall length of the insulating rod. The outer diameter of the second insulating rod 2 fits tightly with the inner diameter of the first insulating rod 1, ensuring smooth extension and retraction while preventing wobbling or displacement during use, which could affect operational accuracy and safety. The first insulating rod 1 has openings 3 at one and the other ends, with multiple sets of openings 3 through which clamping blocks 4 are movably inserted. The dimensions of the openings 3 are matched to the external dimensions of the clamping blocks 4, allowing the clamping blocks 4 to move freely within the openings 3 without excessive gaps that could cause them to wobble or fall off. The threaded area of ​​the first insulating rod 1 is threadedly connected to a threaded sleeve 6, which can be rotated to move axially along the first insulating rod 1. The threaded sleeve 6 is connected to an inner conical sleeve 5. The conical inner wall of the inner conical sleeve 5 is adapted to and in contact with the inclined surfaces of multiple sets of clamping blocks 4. The inclined surfaces of the clamping blocks 4 fit into the conical inner wall of the inner conical sleeve 5. When the inner conical sleeve 5 moves, the interaction of the inclined surfaces can push the clamping blocks 4 to move radially, thereby clamping or releasing the second electrical insulating rod 2. The multiple sets of clamping blocks 4 clamp and fix the second electrical insulating rod 2. By rotating the threaded sleeve 6, the clamping or releasing of the second electrical insulating rod 2 by the clamping blocks 4 can be easily achieved. This allows the insulating rod to be fixed at any length position, meeting the diverse needs for the length of the insulating rod in different power working scenarios. For example, in the maintenance or operation of power equipment at different heights, the length of the insulating rod can be precisely adjusted according to the actual height, improving the convenience and accuracy of operation.

[0024] In this embodiment, a threaded ring 8 is connected to the second electrical insulating rod 2, and a cover 9 is threadedly connected to the threaded ring 8. The function of the cover 9 is to protect and shield the hook 7 when it is not in use, preventing the hook 7 from accidentally touching a person or object and causing injury or damage. When the hook 7 needs to be used for switching on / off operation of electrical equipment, the cover 9 is unscrewed from the threaded ring 8 to expose the hook 7. The hook 7 is located inside the cover 9 and is connected to one end of the second electrical insulating rod 2. The first electrical insulating rod 1 has a sliding groove 12 at one end and the other end. Multiple sets of sliding grooves 12 are slidably connected to slide rails 11, and multiple sets of slide rails 11 are connected to the second electrical insulating rod 2. Multiple sets of protrusions 14 are distributed in a ring at the threaded sleeve 6, and a rubber sleeve 13 is connected to the first electrical insulating rod 1. A rubber strip 10 is adhered to the contact area between the second electrically insulating rod 2 and the multiple sets of clamping blocks 4. The contact points between the multiple sets of clamping blocks 4 and the second electrically insulating rod 2 are tangential, and the contact area is adhered to the rubber strip 10. The rubber strip 10 increases the friction between the clamping blocks 4 and the second electrically insulating rod 2, ensuring the stability of the clamping, and also protects the surface of the second electrically insulating rod 2, preventing the clamping blocks 4 from damaging the second electrically insulating rod 2 during the clamping process.

[0025] The working principle of this embodiment is as follows: In use, the cover 9 can be removed from the threaded ring 8 to expose the hook 7. After exposure, rotate the threaded sleeve 6 and move it closer to the rubber sleeve 13. The threaded sleeve 6 can then drive the inner conical sleeve 5 to release the movement restriction on the clamping block 4. In this way, the clamping block 4 will release the clamping of the second electrical insulating rod 2, and the second electrical insulating rod 2 can move freely within the first electrical insulating rod 1. After adjusting the total length of the first electrical insulating rod 1 and the second electrical insulating rod 2, rotate the threaded sleeve 6 again and move the inner conical sleeve 5 away from the rubber sleeve 13. The inner conical sleeve 5 will then clamp the clamping block 4 on the second electrical insulating rod 2 again, thereby fixing the second electrical insulating rod 2. After fixing, by holding the rubber sleeve 13, the hook 7 can be used to switch on / off the power equipment at a certain height.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable electrical insulating rod, comprising a first electrical insulating rod (1), characterized in that, A second electrical insulating rod (2) is movably inserted into the first electrical insulating rod (1). One end and the other end of the first electrical insulating rod (1) are both open (3). Multiple sets of the open (3) are movably connected with clamping blocks (4). The threaded area of ​​the first electrical insulating rod (1) is threaded with a threaded sleeve (6). The threaded sleeve (6) is connected with an inner conical sleeve (5). The conical inner wall of the inner conical sleeve (5) is adapted to and in contact with the inclined surface of multiple sets of clamping blocks (4). Multiple sets of clamping blocks (4) clamp and fix the second electrical insulating rod (2).

2. A retractable electrical insulating rod according to claim 1, characterized in that, A threaded ring (8) is connected to the second electrical insulating rod (2), and a cover (9) is threadedly connected to the threaded ring (8). A hook (7) is provided inside the cover (9), and the hook (7) is connected to one end of the second electrical insulating rod (2).

3. A retractable electrical insulating rod according to claim 1, characterized in that, The first electrical insulating rod (1) has a sliding groove (12) at one end and the other end. Multiple sets of sliding grooves (12) are slidably connected to sliding rails (11), and multiple sets of sliding rails (11) are connected to the second electrical insulating rod (2).

4. A retractable electrical insulating pole according to claim 1, characterized in that, The threaded sleeve (6) has multiple sets of protrusions (14) distributed in a ring.

5. A retractable power insulation rod according to claim 1, characterized in that, A rubber sleeve (13) is connected to the first electrical insulating rod (1).

6. A retractable electrical insulating pole according to claim 1, characterized in that, The second electrical insulating rod (2) has rubber strips (10) adhering to the contact area between it and the multiple sets of clamps (4).

7. A retractable electrical insulating pole according to claim 1, characterized in that, The multiple sets of clamps (4) are in contact with the second electrical insulating rod (2).

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