A torque displayable wire clip insulation operating device

Abstract

This utility model discloses a torque-displaying wire clamp insulation operating device, including a gun-type operating lever body. The gun-type operating lever body includes an insulating rod, the head of which is a rod head with a hook, and the tail end is a grip. The end face of the grip is provided with a power tool interface. The grip also has a rotating sleeve, which is a cylindrical structure and is rotatably fitted outside the grip through a bearing. The inner ring of the bearing is fixed to the outer wall of the grip, and the outer ring of the bearing is fixed to the inner wall of the rotating sleeve. A locking component is provided between the rotating sleeve and the grip. This utility model adds a rotating sleeve to the operating lever based on a conventional operating lever. The rotating sleeve forms a structure that can rotate relative to the grip through the bearing. When an external power tool drives the grip and the insulating rod to rotate, the rotating sleeve held by the operator can remain stationary, avoiding direct friction between the rotating lever and the hand, effectively preventing hand redness, abrasions, and other discomfort.

Description

Technical Field

[0001] This utility model relates to the field of power construction tools, specifically to a wire clamp insulation operating device that can display torque. Background Technology

[0002] In power system operation, maintenance, and distribution work, torque-displaying clamp-on insulation operating devices are core tools for ensuring operator safety and enabling safe operation during live-line work or after power outages. Made of high-strength insulating materials (such as epoxy fiberglass pipes and phenolic resin pipes), they effectively block current conduction, preventing operators from directly contacting live conductors and thus avoiding the risk of electric shock. Among these, the gun-type torque-displaying clamp-on insulation operating device is particularly widely used in practical operations due to its "gun-type" structural design. This type of operating rod typically consists of three parts: the rod body, the gun-type head actuator, and the tail grip. The head actuator can quickly connect to power equipment components (such as disconnect switches, drop-out fuses, and terminals) via clips, hooks, or clamping structures. Operators do not need to be in close contact with the equipment; they can complete operations such as opening and closing switches, disassembling and assembling components, and splicing cables simply by transmitting operating force through the rod body.

[0003] In the maintenance of 10kV distribution lines, operators can use the head hook of the torque-displaying clamp insulation operating device to hook the operating ring of the drop-out fuse, and complete the fuse switching by pushing, pulling, and rotating the rod. In the replacement of insulators on high-voltage transmission lines, the head of the gun can clamp the insulator fixing bolt, and the bolt tightening or loosening operation can be achieved by rotating the rod, such as the operating rod described in Reference 1.

[0004] Reference 1: Chinese patent document with publication number CN221186367U.

[0005] Reference 1 describes a live-line working gun-type operating lever, including an insulating rod with a hook at the top and a grip at the bottom. A sliding mechanism is provided at the grip. The sliding mechanism includes an anti-wear sleeve fitted outside the grip, the anti-wear sleeve having an axially oriented through groove, and a rack connected to the grip at the groove. A handle slide is fitted outside the anti-wear sleeve, and a rack locking element is provided on the handle slide. The handle slide can move axially relative to the anti-wear sleeve under the action of the rack locking element. The handle slide is connected to the hook at the rod head via a round bar. The hook at the upper end of the rod can be opened or closed by the handle slide and the rack locking element. This facilitates the work of power workers suspending grounding wires and current-carrying wires, is easy to operate, and avoids the dangers of working at heights.

[0006] When high-torque or prolonged rotating operations are required using a lever, an external power tool (such as an electric wrench) can be connected. The high torque output of the power tool drives the lever to rotate, improving work efficiency and operating torque. However, power tools generate continuous rotational driving force during operation. Existing levers lack any anti-rotation grip design. During use, the operator must support the middle of the lever with one hand and hold the external power tool with the other to control its start and stop. During this operation, the rotational driving force of the power tool is transmitted through the lever to the hand supporting it, causing the lever to rotate in the hand. This can increase friction between the operator's skin and the lever, leading to hand discomfort (such as redness, swelling, and abrasions). Although existing levers (publication number CN222691204U) can solve the above problems, their structure is more complex and the cost is higher. Utility Model Content

[0007] The purpose of this invention is to solve the above-mentioned technical problems and provide a wire clamp insulation operating device that can display torque.

[0008] To address the shortcomings of the aforementioned technical problems, the present invention provides the following technical solution: a torque-displaying wire clamp insulation operating device, comprising a gun-type operating lever body, the gun-type operating lever body including an insulating rod, the head end of the insulating rod being a rod head with a hook, and the tail end being a gripping part, the end face of the gripping part being provided with an electric tool interface, the gripping part also being provided with a rotating grip sleeve, the rotating grip sleeve being a cylindrical structure, which is rotatably sleeved on the outside of the gripping part through a bearing, the inner ring of the bearing being fixed to the outer wall of the gripping part, the outer ring of the bearing being fixed to the inner wall of the rotating grip sleeve, and a locking assembly being provided between the rotating grip sleeve and the gripping part.

[0009] As a further optimization of the torque-displaying wire clamp insulation operating device of this utility model: the locking assembly includes a locking ring, a locking screw, and a locking head. The locking ring is fixedly sleeved on the gripping part of the insulating rod, and a locking groove is provided on the edge of the locking ring. One end of the locking screw is hinged to the rotating grip, and the locking screw can extend into the locking groove of the locking ring. The locking head is screwed onto the locking screw.

[0010] As a further optimization of the torque-displaying wire clamp insulation operating device of this utility model: the locking ring has three locking slots evenly distributed along its edge.

[0011] As a further optimization of the torque-displaying wire clamp insulation operating device of this utility model: the locking head includes a rotating cylinder and side ears symmetrically arranged on the outer wall of the rotating cylinder, and the rotating cylinder is helically connected to the locking screw.

[0012] As a further optimization of the torque-displaying wire clamp insulation operating device of this utility model: the locking component is a locking bolt, the side wall of the rotating grip is provided with a through hole, the inner wall of the through hole is provided with a thread, and the locking bolt is screwed into the through hole.

[0013] As a further optimization of the torque-displaying wire clamp insulation operating device of this utility model: the stud end of the locking bolt is provided with friction-enhancing grooves, and the outer wall of the gripping part corresponding to the locking bolt is also provided with friction-enhancing grooves.

[0014] As a further optimization of the wire clamp insulation operating device that can display torque according to this utility model: a blind hole is provided on the outer wall of the gripping part corresponding to the locking bolt, and a thread is provided in the blind hole that allows the locking bolt to be screwed in.

[0015] As a further optimization of the torque-displaying wire clamp insulating operating device of this utility model, the rotating grip is made of insulating plastic.

[0016] As a further optimization of the torque-displaying wire clamp insulation operating device of this utility model: the gun-type operating rod body also has a torque detection module, which includes a torque display screen and a torque sensor. The torque display screen is set above the grip part of the insulation rod.

[0017] This invention has the following advantages: The operating lever of this invention adds a rotating grip to the conventional operating lever. The rotating grip forms a structure that can rotate relative to the gripping part through a bearing. When an external power tool drives the gripping part and the insulating rod to rotate, the rotating grip held by the operator can remain stationary, completely avoiding direct friction between the lever rotation and the hand, effectively preventing hand redness, abrasions and other discomfort. Especially in scenarios such as high-altitude operations where long-term gripping is required, it significantly improves operational stability and safety. The operating lever structure of this invention can be achieved by simple modification of a conventional operating lever, and the cost is low. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the torque-displaying wire clamp insulation operating device of this utility model; Figure 2 This is a schematic diagram of the locking assembly (locked state) in Example 1; Figure 3 This is a schematic diagram of the locking assembly (in the non-locking state) in Example 1; Figure 4 This is a schematic diagram of the locking ring structure; Figure 5 This is a schematic diagram of the locking assembly (locked state) in Example 2; Figure 6This is a schematic diagram of the locking assembly (in the non-locking state) in Example 2; Marked in the image: 1. Gun-type control lever body; 101. Insulating rod; 102. Hook; 103. Holding part; 2. Rotate grip; 3. Locking assembly; 301. Locking ring; 302. Locking screw; 303. Locking head; 304. Locking slot; 4. Bearings. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0020] <Example 1> like Figure 1-4 As shown: A torque-displaying wire clamp insulation operating device includes a gun-type operating lever body 1. The insulating rod 101 of the gun-type operating lever body 1 is made of epoxy fiberglass tube material, which has high strength and insulation performance. Its head end is integrally formed with a rod head with a hook 102, and the grip part 103 at the tail end has a cylindrical structure with an internal threaded power tool interface on the end face, which can be adapted to a standard electric wrench connector.

[0021] The gun-type operating lever body 1 can adopt a mature structure in the prior art, such as the operating lever described in Chinese patent document with publication number CN221186367U. The detailed structure of the gun-type operating lever body 1 will not be described in detail here.

[0022] A rotating grip 2 is fitted onto the outside of the gripping part 103 via a bearing 4. The rotating grip 2 is a cylindrical structure made of polyamide insulating plastic with an annular mounting groove on its inner wall. The outer ring of the bearing 4 is interference-fitted and fixed in the mounting groove, while the inner ring of the bearing 4 is interference-fitted and fixed on the annular step on the outer wall of the gripping part 103. The bearing 4 is a deep groove ball bearing, ensuring that the rotating grip 2 can rotate flexibly around the gripping part 103 without radial offset. The bearing connection structure ensures smooth rotation of the rotating grip and guarantees the coaxiality of the grip and the gripping part, preventing the rod from shifting during operation and causing the head hook to detach from the target component. The rotating grip is made of insulating plastic, forming double insulation protection with the insulating rod.

[0023] A locking assembly 3 is provided between the rotating grip 2 and the grip portion 103. This locking assembly 3 includes a locking ring 301, a locking screw 302, and a locking head 303. The locking ring 301 is a stainless steel ring, fixed to the grip portion 103 near the main body of the insulating rod 101 by epoxy resin adhesive. Three locking slots 304 are evenly distributed along its edge. One end of the locking screw 302 is hinged to the outer wall of the rotating grip 2 via a pin, allowing it to rotate around the pin. Its length ensures it can extend into the locking slots 304. The locking head 303 consists of a rotating cylinder and symmetrically arranged side ears on the cylinder wall. The inner wall of the rotating cylinder has internal threads that screw into the external threads of the locking screw 302. The surface of the side ears has anti-slip textures for easy manual tightening.

[0024] When operating manually, flip the locking screw 302 so that it engages with the locking groove 304 of the locking ring 301, and tighten the locking head 303 so that the end face of the locking head 303 fits tightly against the outer wall of the locking ring 301, thus fixing the rotating grip 2 to the grip part 103. The operator can then hold the rotating grip 2 to drive the rod to perform push, pull, and rotate actions. When an external power tool is needed, loosen the locking head 303 in the opposite direction and flip the locking screw 302 to disengage it from the locking groove 304. At this time, the rotating grip 2 can rotate freely. When the power tool drives the grip part 103 to rotate, the rotating grip 2 remains stationary to avoid the hand being affected by rotational friction.

[0025] <Example 2> like Figure 1 , 5 As shown in Figure 6: The difference between this embodiment and Embodiment 1 lies in the structure of the locking component 3; the rest of the structures are the same. In this embodiment, the locking component 3 is a locking bolt. A through hole is radially opened on the side wall of the rotating grip 2, and the inner wall of the through hole is provided with internal threads. The locking bolt is screwed into the through hole. The stud end of the locking bolt is provided with diamond-shaped friction-enhancing grooves, and the corresponding position on the outer wall of the grip 103 is also provided with matching diamond-shaped friction-enhancing grooves. The engagement of the friction-enhancing grooves increases the friction force during locking.

[0026] Furthermore, a blind hole can be added to the outer wall of the grip 103 corresponding to the locking bolt. The blind hole has an internal thread that matches the locking bolt. When the locking bolt is tightened, its end is screwed into the blind hole to form a threaded connection and fixation, which further improves the locking reliability and avoids loosening of the lock due to vibration during operation.

[0027] The operating lever can also be equipped with a torque detection function to meet the quantitative control requirements of contact wire connector clamps for bolt tightening force. Torque detection employs mature existing technologies, such as using strain gauge torque sensors, where a set of strain gauges are attached to the lever body. When the lever body is subjected to torque and undergoes slight torsional deformation, the resistance of the strain gauges changes. This minute resistance change is detected by a bridge circuit, amplified, and converted into a torque value. Detailed technical specifications are not elaborated here. A display screen showing the detection results is provided on the lever's grip area.

[0028] When operating manually, tighten the locking bolt so that its end fits tightly with the friction-enhancing groove or blind hole of the grip 103 to fix the rotating grip 2 and the grip 103. When using an external power tool, loosen the locking bolt so that the bolt end is removed from the grip 103, and the rotating grip 2 returns to a free-rotating state. The operator can hold the grip to stably control the rod to align with the target part, and the power tool drives the rod to rotate to complete high-torque operation.

[0029] The operating lever of this utility model can be achieved by simple modification based on a conventional operating lever, and the cost is low.

[0030] This invention allows for flexible switching between two operating modes by switching the locking component. In the locked state, the rotating grip and the holding part are fixed as one unit, which can meet the needs of conventional manual pushing, pulling, and rotating operations; in the unlocked state, it is compatible with external power tools for high-torque operations.

[0031] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A torque-displaying wire clamp insulation operating device, comprising a gun-type operating lever body (1), the gun-type operating lever body (1) comprising an insulating rod (101), the head end of the insulating rod (101) being a rod head with a hook (102), and the tail end being a gripping part (103), the end face of the gripping part (103) being provided with a power tool interface, characterized in that: A rotating grip (2) is also provided at the grip part (103). The rotating grip (2) is a cylindrical structure and is rotatably sleeved on the outside of the grip part (103) by means of a bearing (4). The inner ring of the bearing (4) is fixed to the outer wall of the grip part (103), and the outer ring of the bearing (4) is fixed to the inner wall of the rotating grip (2). A locking assembly (3) is provided between the rotating grip (2) and the grip part (103).

2. An insulated operating device for a clamp that displays torque according to claim 1, characterized in that: The locking assembly (3) includes a locking ring (301), a locking screw (302), and a locking head (303). The locking ring (301) is fixedly sleeved on the gripping part (103) of the insulating rod (101). The edge of the locking ring (301) is provided with a locking groove (304). One end of the locking screw (302) is hinged to the rotating grip (2). The locking screw (302) can extend into the locking groove (304) of the locking ring (301). The locking head (303) is screwed onto the locking screw (302).

3. An insulated operating device for a line clamp according to claim 2, wherein: The locking ring (301) has three locking slots (304) evenly distributed along its edge.

4. An insulated operating device for a line clamp according to claim 2, wherein: The locking head (303) includes a rotating cylinder and side ears symmetrically arranged on the outer wall of the rotating cylinder. The rotating cylinder is helically connected to the locking screw (302).

5. The torque displayable line clip insulation handling device of claim 1, wherein: The locking assembly (3) is a locking bolt. The side wall of the rotating grip (2) is provided with a through hole, and the inner wall of the through hole is provided with a thread. The locking bolt is screwed into the through hole.

6. An insulated operating device for a line clamp according to claim 5, wherein: The stud end of the locking bolt is provided with friction-enhancing grooves, and the outer wall of the grip (103) corresponding to the locking bolt is also provided with friction-enhancing grooves.

7. An insulated operating device for a line clamp according to claim 5, wherein: The outer wall of the grip (103) is provided with a blind hole corresponding to the locking bolt, and the blind hole is provided with a thread that allows the locking bolt to be screwed in.

8. The torque displayable line clip insulation handling device of claim 1, wherein: The rotating grip (2) is made of insulating plastic.

9. The torque displayable line clip insulation handling device of claim 1, wherein: The gun-type operating lever body (1) also has a torque detection module, which includes a torque display screen and a torque sensor. The torque display screen is located above the grip part (103) of the insulating rod (101).

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