Live-line work installation calipers

Abstract

The utility model discloses a hot-line work installation caliper comprising a clamping assembly comprising a first insulation shell, a fixed conductive member, a movable conductive member and a conductive shaft, the first insulation shell is provided with a clamping cavity and a movable cavity, the clamping cavity penetrates through the front and rear wall surfaces of the first insulation shell, the fixed conductive member is connected with the upper wall surface of the clamping cavity, and the movable conductive member is connected with the upper wall surface of the movable cavity; the movable cavity is communicated with the clamping cavity and is opened downwards, the conductive shaft is arranged in the movable cavity, the movable conductive piece is arranged below the fixed conductive piece and is in sliding connection with the conductive shaft, and an adjusting screw hole is formed in the lower end of the first insulating shell and is communicated with the clamping cavity; the adjusting handle is matched and connected with the adjusting screw hole, and the upper end of the adjusting handle is rotationally connected with the movable conductive piece; the insulating handle comprises a conducting rod and a second insulating shell, the conducting rod is sleeved with the second insulating shell, the second insulating shell is opened downwards, and the upper end of the conducting rod and the lower end of the conducting shaft are conductive and hinged. The utility model is suitable for rapid installation in a narrow space.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a live-line working installation clamp. Background Technology

[0002] During routine use of electrical cabinets, inspection and maintenance are required, necessitating the use of external connectors to achieve conductive connections with the cabinet's busbars. However, the internal space of electrical cabinets is limited, and existing connectors are often insufficient to accommodate the confined space. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a live-line working installation clamp.

[0004] The solution to the technical problem of this utility model is:

[0005] A live-line working clamp, comprising:

[0006] A clamping assembly includes a first insulating shell, a fixed conductive element, a movable conductive element, and a conductive shaft. The first insulating shell has a clamping cavity and a movable cavity. The clamping cavity extends through the front and rear walls of the first insulating shell. The fixed conductive element is connected to the upper wall of the clamping cavity. The movable cavity communicates with the clamping cavity and opens downward. The conductive shaft is disposed in the movable cavity. The movable conductive element is disposed below the fixed conductive element and is slidably connected to the conductive shaft. The lower end of the first insulating shell has an adjusting screw hole that communicates with the clamping cavity.

[0007] An adjusting handle is provided, which is connected to the adjusting screw hole, and the upper end of the adjusting handle is rotatably connected to the movable conductive component.

[0008] An insulated handle includes a conductive rod and a second insulating shell. The second insulating shell is sleeved on the outside of the conductive rod and opens downward. The upper end of the conductive rod is electrically connected to the lower end of the conductive shaft and is hinged thereto.

[0009] This utility model has at least the following beneficial effects: Rotating the adjusting handle allows it to move vertically, pushing the movable conductive component connected to the upper end of the adjusting handle to move vertically as well, thus allowing the movable conductive component to move closer to or further away from the fixed conductive component, thereby clamping or releasing the busbar of the electrical cabinet. The operation is simple, convenient, and quick. The conductive rod in the insulating handle is connected to the conductive shaft in the clamping assembly. The operator can make a conductive connection between the conductive rod and the conductive shaft, and also to the busbar. Since the conductive rod and the conductive shaft are hinged, the insulating handle can rotate relative to the clamping assembly, adjusting the angle between the insulating handle and the clamping assembly, thus adapting to the narrow space inside the electrical cabinet and facilitating rapid installation in confined spaces. Furthermore, the presence of a first insulating shell and a second insulating shell protects the conductive components, preventing direct contact with them and ensuring construction safety. Operators can safely and reliably install the live-line installation clamps on the busbar of the electrical cabinet without interrupting power, improving construction efficiency and avoiding inconvenience to residents caused by power outages.

[0010] As a further improvement to the above technical solution, the lower end of the conductive shaft is provided with a rotating shaft, and the upper end of the conductive rod is provided with a connecting hole. The rotating shaft extends back and forth and passes through the connecting hole. This arrangement enables a rotatable connection between the conductive shaft and the conductive rod, facilitating the adjustment of the angle position of the insulated handle.

[0011] As a further improvement to the above technical solution, the live-line working installation clamp also includes a third insulating shell, which is connected to the first insulating shell. The third insulating shell is hollow, forming an operating cavity that opens downwards, and the adjusting handle is disposed within the operating cavity. The third insulating shell protects the adjusting handle, preventing the operator from directly contacting it and causing an electric shock accident. Moreover, the operating cavity facilitates the operator's use of tools to operate the adjusting handle.

[0012] As a further improvement to the above technical solution, the third insulating shell is provided with a bayonet, and the lower end of the first insulating shell is provided with a buckle, which engages with the bayonet. The first insulating shell and the third insulating shell are detachably connected by the snap-fit ​​mechanism, allowing the third insulating shell to detach from the first insulating shell and expose the adjusting handle for easy maintenance and installation.

[0013] As a further improvement to the above technical solution, an operating rod is provided at the lower end of the adjusting handle, and a gap is formed between the outer wall surface of the operating rod and the operating cavity. The operating rod is hexagonal prism-shaped. The design of the operating rod facilitates the operator's use of the corresponding operating tools to adjust the adjusting handle, improving the convenience of construction.

[0014] As a further improvement to the above technical solution, the live-line working installation clamp also includes a torque wrench. The torque wrench has a fourth insulating shell on its outer periphery, and the torque wrench is drivenly connected to the operating lever. The torque wrench facilitates the operation of the adjustment handle and ensures that the clamping force on the busbar is not excessive and causes damage to the busbar. In addition, the fourth insulating shell further ensures safety during live-line installation.

[0015] As a further improvement to the above technical solution, the fixed conductive component is provided with a first claw, and the movable conductive component is provided with a second claw, with the first claw and the second claw arranged opposite to each other. The first claw and the second claw can directly pierce the insulation layer and oxide layer on the surface of the busbar. Before installation, the operator does not need to treat the surface of the busbar and can directly install the live-line installation clamp of this embodiment, making construction more convenient and greatly improving construction efficiency.

[0016] As a further improvement to the above technical solution, the live-line working installation caliper also includes a sealing cover, which is detachably connected to the lower end of the second insulating shell. The sealing cover prevents dust and other debris from entering the interior of the second insulating shell and protects the conductive rod located inside the second insulating shell, reducing oxidation of the conductive rod and improving the service life of the live-line working installation caliper. When using the live-line working installation caliper, the sealing cover can be removed from the lower end of the second insulating shell.

[0017] As a further improvement to the above technical solution, the live-line working installation clamp also includes a connecting strap, one end of which is connected to the sealing cover, and the other end is connected to the second insulating shell. This design prevents the sealing cover from being lost after separating from the lower end of the second insulating shell.

[0018] As a further improvement to the above technical solution, an insulating sleeve is provided on the outer wall surface of the second insulating shell, and the insulating sleeve is provided with a plurality of first anti-slip patterns. The insulating sleeve can further ensure insulation between the operator's hand and the busbar, ensuring construction safety, while the first anti-slip patterns can increase the friction between the operator's hand and the second insulating shell, thereby preventing slippage during operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0020] Figure 1This is a front view of the live-line working installation clamp according to an embodiment of the present invention;

[0021] Figure 2 This is a top view of the live-line working installation clamp according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the live-line working installation clamp according to an embodiment of the present invention.

[0023] Reference numerals: 100, first insulating shell; 110, buckle; 120, conductive shaft; 130, rotating shaft; 200, movable conductive component; 210, second claw; 300, fixed conductive component; 310, first claw; 400, second insulating shell; 410, insulating sleeve; 420, conductive rod; 500, adjusting handle; 510, connecting block; 520, operating rod; 600, third insulating shell; 610, operating cavity. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. The various technical features of this utility model can be combined interactively without contradicting each other.

[0029] Reference Figures 1 to 3 This utility model embodiment proposes a live-line installation clamp that can be safely and reliably installed on the busbar of an electrical cabinet without power interruption, and is also adaptable to the narrow space of the electrical cabinet.

[0030] In this embodiment, the live-line working installation clamp includes a clamping assembly, an adjusting handle 500, and an insulating handle. The clamping assembly includes a first insulating shell 100, a movable conductive element 200, a fixed conductive element 300, and a conductive shaft 120. The first insulating shell 100 has a clamping cavity extending through its front and rear walls. The fixed conductive element 300 is disposed within the clamping cavity and fixedly connected to its upper wall. The first insulating shell 100 also has a movable cavity located to the left of the clamping cavity and communicating with it. The movable cavity opens downwards, and the conductive shaft 120 extends vertically within it. The movable conductive element 200 is positioned below the fixed conductive element 300 and is slidably connected to the conductive shaft 120, allowing it to move vertically along the extension direction of the conductive shaft 120.

[0031] It is understandable that the upper surface of the movable conductive member 200 and the lower surface of the fixed conductive member 300 together form a conductive cavity for clamping the busbar. When the movable conductive member 200 moves upward, the movable conductive member 200 and the fixed conductive member 300 move closer to each other and can clamp the busbar stably. When the movable conductive member 200 moves downward, the movable conductive member 200 and the fixed conductive member 300 move further apart and can release the busbar.

[0032] In this embodiment, a first claw 310 is provided on the lower surface of the fixed conductive component 300, and a second claw 210 is provided on the upper surface of the movable conductive component 200. The first claw 310 and the second claw 210 are arranged opposite to each other. It is understood that the first claw 310 and the second claw 210 can directly pierce the insulation layer and oxide layer on the surface of the busbar. Before installation, the operator does not need to treat the surface of the busbar; they can directly install the live-line installation clamp of this embodiment, making construction more convenient and greatly improving construction efficiency.

[0033] In this embodiment, the first insulating shell 100 is also provided with an adjusting screw hole, which is located on the lower wall surface of the first insulating shell 100 and communicates with the clamping cavity. The adjusting screw hole extends in the vertical direction and has an internal thread structure, while the outer peripheral wall surface of the adjusting handle 500 has an external thread structure. The thread structure of the adjusting handle 500 and the internal thread structure of the adjusting screw hole are mutually engaged and connected. When the adjusting handle 500 is rotated, the length of the adjusting handle 500 extending upward into the clamping cavity can be changed.

[0034] In this embodiment, the upper end of the adjusting handle 500 is rotatably connected to the movable conductive member 200. When the adjusting handle 500 is rotated to extend upward into the clamping cavity, the movable conductive member 200 can be moved upward, thereby reducing the distance between it and the fixed conductive member 300; when the adjusting handle 500 is rotated and moved downward, the movable conductive member 200 can be moved downward, thereby increasing the distance between the movable conductive member 200 and the fixed conductive member 300.

[0035] Specifically, the lower surface of the movable conductive component 200 is provided with a connecting groove that opens downwards, and the lower end of the connecting groove is provided with a connecting step. The upper end of the adjusting handle 500 is provided with a connecting block 510, and the outer peripheral wall of the connecting block 510 is provided with an annular movable groove. The connecting block 510 extends into the connecting groove, and the connecting step is engaged with the movable groove. The connecting block 510 and the groove wall of the connecting groove can rotate relative to each other, and the connecting step and the groove wall of the movable groove can rotate relative to each other.

[0036] Understandably, this design prevents the busbar from rotating and causing the adjusting handle 500 to rotate, which would otherwise be caused by the busbar rotating the movable conductive part 200 after the busbar is installed and locked. This helps to prevent loosening and ensures the stability of the conductive connection.

[0037] The insulating handle in this embodiment includes a conductive rod 420 and a second insulating shell 400. The conductive shaft 120 and the conductive rod 420 are electrically connected. The second insulating shell 400 is sleeved on the outside of the conductive rod 420 and has an opening facing downward so that the operator can electrically connect the conductive rod 420 from the opening of the second insulating shell 400.

[0038] It is worth noting that in this embodiment, the upper end of the conductive rod 420 is connected to the lower end of the conductive shaft 120 by a hinge, allowing the insulating handle to rotate relative to the conductive shaft 120. In this embodiment, a rotating shaft 130 is provided at the lower end of the conductive shaft 120, extending in the front-rear direction. A connecting hole is provided at the upper end of the conductive rod 420, through which the rotating shaft 130 passes and is rotatably connected to the wall of the connecting hole. The conductive rod 420 can rotate around the central axis of the rotating shaft 130, thereby adjusting the angle position of the insulating handle.

[0039] Understandably, since the insulating handle and the conductive shaft 120 can rotate relative to each other and maintain a conductive connection, when the live-line working installation clamp is applied to the confined space inside an electrical cabinet, the fixed conductive part 300 and the movable conductive part 200 are used to clamp and stabilize the busbar of the electrical cabinet. By rotating the insulating handle to a suitable position, the position of the opening below the insulating handle changes, and the operator can make a conductive connection from a suitable position.

[0040] In addition, with the first insulating shell 100 and the second insulating shell 400 installed, operators can safely and reliably install the live-line installation clamps on the busbar of the electrical cabinet without interrupting power, ensuring construction safety, improving construction efficiency, and avoiding inconvenience to residents caused by power outages during construction.

[0041] In this embodiment, the live-line working installation caliper also includes a sealing cap, which is disposed at the lower end of the second insulating shell 400 and detachably connected to the lower end of the second insulating shell 400. When the live-line working installation caliper is not in use, the sealing cap is connected to the lower end of the second insulating shell 400, covering the lower opening of the second insulating shell 400 to prevent dust and other debris from entering the interior of the second insulating shell 400. This also protects the conductive rod 420 located inside the second insulating shell 400, reducing oxidation of the conductive rod 420 and extending the service life of the live-line working installation caliper. When the live-line working installation caliper is in use, the sealing cap is simply removed from the lower end of the second insulating shell 400.

[0042] In this embodiment, the live-line working installation clamp also includes a connecting strap for connecting the sealing cap and the second insulating shell 400. One end of the connecting strap is connected to the outer wall surface of the second insulating shell 400, and the other end is connected to the sealing cap. It is understood that this design prevents the sealing cap from being lost after separating from the lower end of the second insulating shell 400.

[0043] In some embodiments, an insulating sleeve 410 is provided on the outer wall surface of the second insulating shell 400. The insulating sleeve 410 can be made of materials such as rubber and silicone. When in use, the operator's hand is held in the position of the insulating sleeve 410, which further ensures the insulation between the operator's hand and the busbar and ensures construction safety.

[0044] In this embodiment, the outer surface of the insulating sleeve 410 is provided with a plurality of first anti-slip patterns. The first anti-slip patterns can increase the friction between the operator's hand and the second insulating shell 400, thereby preventing slippage during operation. It is understood that the number, shape and arrangement of the first anti-slip patterns are not specifically limited here.

[0045] In this embodiment, the live-line working installation clamp also includes a third insulating shell 600, which is connected to the first insulating shell 100. The third insulating shell 600 is hollow to form an operating cavity 610 that opens downwards, and the adjusting handle 500 is disposed in the operating cavity 610.

[0046] Understandably, the third insulating shell 600 further ensures construction safety by preventing operators from directly touching the adjusting handle 500 and causing accidents. Understandably, the third insulating shell 600 can also simultaneously cover the lower end of the conductive shaft 120, protecting the hinged joint between the conductive shaft 120 and the conductive rod 420, further ensuring construction safety.

[0047] In this embodiment, the third insulating shell 600 and the first insulating shell 100 are detachably connected. The side wall of the third insulating shell 600 is provided with a bayonet, which is connected to the operating cavity 610. The side wall of the first insulating shell 100 is provided with a protruding buckle 110, which engages with the bayonet, thereby realizing the detachable connection between the third insulating shell 600 and the first insulating shell 100.

[0048] Understandably, separating the third insulating shell 600 from the first insulating shell 100 facilitates the maintenance and installation of the adjusting handle 500 by construction personnel. Moreover, the separate manufacturing process of the third insulating shell 600 and the first insulating shell 100 is simpler than that of the third insulating shell 600 and the first insulating shell 100 being integrally formed.

[0049] In this embodiment, the front side wall of the third insulating shell 600 is provided with one latch, and the rear side wall is provided with two latches. The front and rear side walls of the first insulating shell 100 are provided with the same number and position of buckles 110 as the latches of the third insulating shell 600. The connection between the third insulating shell 600 and the first insulating shell 100 is achieved through multiple buckles 110 and latches, which can ensure the connection strength between the third insulating shell 600 and the first insulating shell 100 during construction and prevent the third insulating shell 600 from detaching and causing safety hazards.

[0050] In this embodiment, an operating lever 520 is provided at the lower end of the adjusting handle 500. The operating lever 520 is hexagonal prism-shaped, and a certain gap is formed between its outer peripheral wall and the inner wall of the operating cavity 610, which is beneficial for using tools to rotate the adjusting handle 500 located in the operating cavity 610.

[0051] Understandably, the operating lever 520 is completely housed within the operating cavity 610, and the third insulating shell 600 protects the outer periphery of the operating lever 520. During operation, a hexagonal wrench corresponding to the shape of the operating lever 520 needs to be inserted into the operating cavity 610 for adjustment.

[0052] In this embodiment, the live-line working installation caliper is also equipped with a torque wrench. The torque wrench has an upward-opening drive groove, which is hexagonal prism in shape. The shape of the drive groove corresponds to the shape of the operating lever 520. During operation, the torque wrench is inserted into the operating cavity 610, allowing the operating lever 520 to enter the drive groove. By rotating the torque wrench, the operating lever 520 can be rotated, thereby adjusting the adjustment handle 500 and allowing the movable conductive component 200 to move in the vertical direction.

[0053] In this embodiment, the torque wrench is a slip-type wrench. When the movable conductive element 200 is adjusted to a position that stably clamps the busbar, the busbar will exert a reaction force on the movable conductive element 200, thereby allowing the torque of the adjusting handle 500 to reach the set torque. The torque wrench will make a mechanical contact sound to indicate to the operator that the busbar has been stably clamped. Furthermore, it can automatically release the force, and the operator will stop rotating the adjusting handle 500, causing the movable conductive element 200 to stop moving upward. If the operator continues to rotate the adjusting handle 500 in the tightening direction, it will slip, and the adjusting handle 500 and the movable conductive element 200 will not be able to continue moving upward, thereby avoiding over-force and damage to the busbar.

[0054] Understandably, torque wrenches can be digital, pointer, or electric.

[0055] In this embodiment, a fourth insulating shell is provided on the outer periphery of the torque wrench. The fourth insulating shell is located at the lower part of the torque wrench, which can provide the operator with a grip position and further ensure the safety and reliability of the live construction process.

[0056] In this embodiment, the outer wall surface of the fourth insulating shell is provided with a plurality of second anti-slip patterns. The second anti-slip patterns can increase the friction between the operator's hand and the torque wrench, thereby preventing slippage between the operator's hand and the torque wrench during operation, which is more conducive to construction operations. It is understood that the number, shape and arrangement of the second anti-slip patterns are not specifically limited here.

[0057] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A live-line working clamp, characterized in that, include: A clamping assembly includes a first insulating shell, a fixed conductive element, a movable conductive element, and a conductive shaft. The first insulating shell has a clamping cavity and a movable cavity. The clamping cavity extends through the front and rear walls of the first insulating shell. The fixed conductive element is connected to the upper wall of the clamping cavity. The movable cavity communicates with the clamping cavity and opens downward. The conductive shaft is disposed in the movable cavity. The movable conductive element is disposed below the fixed conductive element and is slidably connected to the conductive shaft. The lower end of the first insulating shell has an adjusting screw hole that communicates with the clamping cavity. An adjusting handle is provided, which is connected to the adjusting screw hole, and the upper end of the adjusting handle is rotatably connected to the movable conductive component. An insulated handle includes a conductive rod and a second insulating shell. The second insulating shell is sleeved on the outside of the conductive rod and opens downward. The upper end of the conductive rod is electrically connected to the lower end of the conductive shaft and is hinged thereto.

2. The live-line working installation clamp according to claim 1, characterized in that, The lower end of the conductive shaft is provided with a rotating shaft, and the upper end of the conductive rod is provided with a connecting hole. The rotating shaft extends back and forth and passes through the connecting hole.

3. The live-line working installation clamp according to claim 1, characterized in that, The live-line working installation clamp also includes a third insulating shell, which is connected to the first insulating shell. The third insulating shell is hollow and forms an operating cavity that opens downwards. The adjusting handle is located inside the operating cavity.

4. The live-line working installation clamp according to claim 3, characterized in that, The third insulating shell is provided with a bayonet, and the lower end of the first insulating shell is provided with a buckle, which engages with the bayonet.

5. The live-line working clamp according to claim 3, characterized in that, The lower end of the adjustment handle is provided with an operating rod, and a gap is formed between the outer wall surface of the operating rod and the operating cavity. The operating rod is hexagonal prism-shaped.

6. The live-line working clamp according to claim 5, characterized in that, The live-line working installation caliper also includes a torque wrench, the torque wrench has a fourth insulating shell on its outer periphery, and the torque wrench is drivenly connected to the operating lever.

7. The live-line working installation clamp according to claim 1, characterized in that, The fixed conductive component is provided with a first claw, and the movable conductive component is provided with a second claw, with the first claw and the second claw being arranged opposite to each other.

8. The live-line working clamp according to claim 1, characterized in that, The live-line working installation clamp also includes a sealing cover, which is detachably connected to the lower end of the second insulating shell.

9. The live-line working clamp according to claim 8, characterized in that, The live-line working installation clamp also includes a connecting strap, one end of which is connected to the sealing cover and the other end of which is connected to the second insulating shell.

10. The live-line working clamp according to claim 1, characterized in that, The outer wall surface of the second insulating shell is provided with an insulating sleeve, and the insulating sleeve is provided with a plurality of first anti-slip patterns.

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