Wire core clamping device for narrow space of power distribution equipment

Abstract

The utility model discloses a narrow space wire core clamping device for power distribution equipment, which relates to the technical field of grounding wires and comprises a handheld fixing sleeve assembly, a handheld rotating mechanism is arranged on the handheld fixing sleeve assembly, a clamping mechanism is arranged at the output end of the handheld rotating mechanism, and the clamping mechanism is connected with the handheld fixing sleeve assembly. A connecting rod mechanism is formed among the handheld fixing sleeve assembly, the handheld rotating mechanism and the clamping mechanism, rotating motion is converted into linear motion, the linear motion ejects / pulls the clamping mechanism to achieve opening and closing to clamp the corresponding copper bar connecting position, and the overall diameter of the clamping device is smaller than the elbow-shaped head inserting hole diameter. Therefore, the clamping device can also be directly inserted into the elbow-shaped head, the problem that no grounding protection measures exist during maintenance in environments such as narrow space of the power distribution equipment is solved, standardization of grounding protection safety operation during operation in the narrow space of the power distribution equipment is achieved, operation and installation efficiency can be improved, and quality is effectively controlled in a unified and stable mode.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of grounding wire, especially relates to distribution equipment narrow space wire core clamping device. BACKGROUND

[0002] In 10kV distribution line, the indoor terminal of cable line is the connecting accessory of cable and equipment, which plays a role in transmitting electric energy and ensuring the safe operation of line in daily operation. Due to different use scenarios such as narrow space, there are many inconveniences and hidden dangers in maintenance and repair:

[0003] (1) when the elbow head opening and closing, distribution box and other distribution equipment are in the maintenance state, the grounding knife switch between the cables is usually closed, so that the line is in the maintenance state. However, when the cable between the opening and closing is maintained, if the system ground wire uses the grounding knife switch of the opening and closing, there is no place to hang the maintenance grounding wire;(2) when the cable distribution box needs to be transferred and maintained, there is no special grounding wire that can be used in the cable elbow head on the market, which brings great confusion to the business work.(3) in the photovoltaic power generation field and wind power generation field, many cable network connections use cable distribution boxes, when these cable lines need to be maintained, there is no place to hang the grounding wire, because these power lines have no exposed core part for grounding.(4) the low-voltage outgoing line busbar of the box transformer is insulated, and the exposed part is only the busbar connecting bolt, and the bolt nut is exposed, but it is also difficult to install with ordinary grounding wire; when the incoming and outgoing lines of the air switch need to be transferred and maintained, it is also difficult to find the grounding wire hanging point.

[0004] Therefore, it is urgent to design a distribution equipment narrow space wire core clamping device to realize fast clamping (fast connection). Utility model content

[0005] The utility model aims at providing distribution equipment narrow space wire core clamping device, so as to overcome the problem of no grounding protection measures when working and maintaining in the narrow space of distribution equipment, realize the standardization of grounding protection safety operation when working in the narrow space of distribution equipment, improve the operation and installation efficiency, and effectively control the unified and stable quality.

[0006] The distribution equipment narrow space wire core clamping device comprises a handheld fixed sleeve assembly, a handheld rotating mechanism is arranged on the handheld fixed sleeve assembly, a clamping mechanism is arranged on the output end of the handheld rotating mechanism, the clamping mechanism is connected with the handheld fixed sleeve assembly, and the opening and closing of the clamping mechanism is controlled by rotating the handheld rotating mechanism.

[0007] Preferably, the handheld fixing sleeve assembly comprises an aluminum sleeve, an insulating handheld rod sleeve and a limiting support ring, one end of the insulating handheld rod sleeve is sleeved with the aluminum sleeve, and the other end is provided with the limiting support ring through a pin.

[0008] Preferably, the handheld rotating mechanism comprises a connecting rotating rod and a driving insulating handle, the driving insulating handle is rotatably installed on the insulating handheld rod sleeve and located at one end provided with the limiting support ring, and the connecting rotating rod is installed on the driving insulating handle and located inside the insulating handheld rod sleeve.

[0009] Preferably, the clamping mechanism comprises a grounding wire clamp, a clamping claw, a connecting movable ring and a rotating tension screw rod, the grounding wire clamp is fixedly installed on the insulating handheld rod sleeve and located at one end provided with the aluminum sleeve, a threaded mounting hole is arranged through the grounding wire clamp, the clamping claw is installed on the grounding wire clamp through a clamping pin, one end of the rotating tension screw rod is connected with the connecting rotating rod, the other end is threadedly connected with the grounding wire clamp, the connecting movable ring is rotatably installed on the outward end of the rotating tension screw rod, and the inward foot of the clamping claw is rotatably connected with the connecting movable ring through a locking pin, the rotating tension screw rod is driven to move along the insulating handheld rod sleeve in the axial direction by rotating the driving insulating handle, and the clamping claw is driven to open and close when the rotating tension screw rod moves along the insulating handheld rod sleeve in the axial direction.

[0010] Preferably, the clamping claw is provided with a clamping groove, and an annular spring is sleeved on the clamping groove.

[0011] Preferably, the grounding wire clamp is made of conductive material.

[0012] Preferably, a wire clamping sleeve is installed on the grounding wire clamp, and a copper wire is connected to the wire clamping sleeve.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The power distribution equipment narrow space wire core clamping device can overcome the problem of no grounding protection measures when working and maintaining in the narrow space of the power distribution equipment, standardize the grounding protection safety operation when working in the narrow space of the power distribution equipment, improve the operation and installation efficiency, and effectively control the quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0016] Fig. 1 is the overall structure schematic diagram of the utility model.

[0017] Fig. 2 is the explosion view of the clamping device of the utility model.

[0018] Fig. 3 is the schematic diagram of the clamping device clamping copper bar connecting place of the utility model.

[0019] Fig. 4 is the schematic diagram of the clamping device inserting elbow head connecting of the utility model.

[0020] Main figure mark explanation:

[0021] 100-handheld fixed sleeve assembly, 110-aluminum sleeve, 120-insulating handheld rod sleeve, 130-limiting support ring, 200-handheld rotating mechanism, 210-connection rotating rod, 220-driving insulating handle, 300-clamping mechanism, 310-ground wire clamp head, 320-clamping claw, 330-connection movable ring, 340-rotary loose and tight screw rod, 350-clip pin, 360-lock pin, 370-ring spring, 380-wire clamping sleeve, 390-copper wire. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, and therefore cannot be understood as a limitation on the utility model.

[0024] 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 the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish 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 sequential relationship of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0026] Example

[0027] like Figs. 1 to 4 As shown, a wire core clamping device for power distribution equipment in narrow spaces includes a handheld fixing sleeve assembly 100. The handheld fixing sleeve assembly 100 is provided with a handheld rotating mechanism 200. A clamping mechanism 300 is provided on the output end of the handheld rotating mechanism 200. The clamping mechanism 300 is connected to the handheld fixing sleeve assembly 100. Rotating the handheld rotating mechanism 200 controls the opening and closing of the clamping mechanism 300.

[0028] Preferably, the handheld fixing sleeve assembly 100 includes an aluminum sleeve 110, an insulating handheld rod sleeve 120, and a limiting support ring 130. The aluminum sleeve 110 is fitted onto one end of the insulating handheld rod sleeve 120, and the limiting support ring 130 is installed at the other end via a pin. It is worth mentioning that the aluminum sleeve 110 is fitted onto the outside of the insulating handheld rod sleeve 120, and the limiting support ring 130 is fitted onto the inside of the insulating handheld rod sleeve 120.

[0029] In some preferred embodiments, the handheld rotating mechanism 200 includes a connecting rotating rod 210 and a driving insulating handle 220. The driving insulating handle 220 is rotatably mounted on the insulating handheld rod sleeve 120 and located at the end where the limiting support ring 130 is provided. The connecting rotating rod 210 is mounted on the driving insulating handle 220 and located inside the insulating handheld rod sleeve 120.

[0030] Preferably, the clamping mechanism 300 comprises a grounding wire clamp head 310, a clamping jaw 320, a connecting movable ring 330 and a rotating tension screw rod 340, the grounding wire clamp head 310 is fixedly installed on the insulated handheld rod sleeve 120 and located at one end of the aluminum sleeve 110, a threaded mounting hole is provided through the grounding wire clamp head 310, the clamping jaw 320 is installed on the grounding wire clamp head 310 through a snap pin 350, one end of the rotating tension screw rod 340 is connected with the connecting rotating rod 210, the other end is threadedly connected with the grounding wire clamp head 310, the connecting movable ring 330 is rotatably installed on the outward end of the rotating tension screw rod 340, the inward foot of the clamping jaw 320 is rotatably connected with the connecting movable ring 330 through a lock pin 360, the rotating tension screw rod 340 is axially moved along the insulated handheld rod sleeve 120 by rotating the driving insulated handle 220, a connecting rod structure is formed between the grounding wire clamp head 310, the clamping jaw 320, the connecting movable ring 330 and the rotating tension screw rod 340, when the rotating tension screw rod 340 is axially moved along the insulated handheld rod sleeve 120, the connecting movable ring 330 drives the clamping jaw 320 to open and close to clamp the connection of the copper bar, it is worth noting that the limiting and supporting ring 130 is used for limiting during clamping, that is, when the driving insulated handle 220 abuts against the limiting and supporting ring 130 during driving the clamping jaw 320 to open and close, the clamping jaw 320 is limited to continue to open and close.

[0031] In some preferred embodiments, the clamping jaw 320 is provided with a clamping groove, and an annular spring 370 is sleeved on the clamping groove, the annular spring 370 is arranged to realize synchronous clamping, when the driving insulated handle 220 is rotated, the rotating tension screw rod 340 moves and drives the connecting movable ring 330 to move, the clamping jaw 320 connected with the connecting movable ring 330 also moves correspondingly, the lower part of the clamping jaw 320 moves first, and the front end of the clamping jaw 320 opens later, a difference value is generated, and when the rotating tension screw rod 340 rotates to the limit opening and closing degree of the clamping jaw 320, the front end of the clamping jaw 320 has not completed the tightening, the annular spring 370 can assist the clamping jaw 320 to realize synchronous clamping during the rising and falling of the movement between the connecting movable ring 330 and the rotating tension screw rod 340, when the clamping jaw 320 opens, the annular spring 370 is subjected to the force of the opening of the clamping jaw 320, the spring transmits the inward elastic force to additionally provide the clamping force, and the front part and the lower part of the clamping jaw 320 realize synchronous clamping, when the clamping jaw 320 tightens, the size of the clamping jaw 320 still cannot meet the size of the recovery of the annular spring 370, therefore, the spring continues to transmit the inward elastic force to additionally provide the clamping force.

[0032] In some preferred embodiments, the grounding clamp head 310 is made of conductive material, so as to be able to install a wire clamping sleeve 380 on the grounding clamp head 310, and a copper wire 390 is connected to the wire clamping sleeve 380, so as to realize external grounding operation through the copper wire 390.

[0033] Regarding the connection operation of the clamping device with the elbow head in the electrical box and the electrical cabinet:

[0034] One hand holds the insulating hand rod sleeve 120 of the device, and the other hand holds the driving insulating handle 220, and the driving insulating handle 220 is rotated to open the clamping jaw 320, so as to clamp the elbow head; or the elbow head is inserted, and the driving insulating handle 220 is driven to open the clamping jaw 320 to be clamped to the inside of the elbow head, so as to ensure that the clamping device cannot be pulled out.

[0035] Regarding the connection operation of the clamping device with the copper bar connection:

[0036] One hand holds the insulating hand rod sleeve 120 of the device, and the other hand holds the driving insulating handle 220, and the driving insulating handle 220 is rotated to open the clamping jaw 320, so as to clamp the bolt or screw rod on the copper bar connection, and complete the installation of the device.

[0037] In summary, the narrow space wire core clamping device for power distribution equipment provided by the utility model can overcome the problem of no grounding protection measures when working in a narrow space of power distribution equipment, standardize the grounding protection safety operation when working in a narrow space of power distribution equipment, improve the operation and installation efficiency, and effectively control the quality to be uniform and stable.

[0038] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of explanation and illustration, and these descriptions are not intended to limit the utility model to the precise forms disclosed, and it is apparent that many changes and variations can be made according to the above teachings, although an embodiment of the utility model has been shown and described, the specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, the purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments according to the needs after reading the specification without creative contribution, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A wire core clamping device for narrow spaces in power distribution equipment, characterized in that, The device includes a handheld fixing sleeve assembly (100), on which a handheld rotating mechanism (200) is provided. A clamping mechanism (300) is provided on the output end of the handheld rotating mechanism (200). The clamping mechanism (300) is connected to the handheld fixing sleeve assembly (100). Rotating the handheld rotating mechanism (200) controls the opening and closing of the clamping mechanism (300). The handheld fixing sleeve assembly (100) includes an aluminum sleeve (110), an insulating handheld rod sleeve (120), and a limiting support ring (130). The insulating handheld rod sleeve (120) has the aluminum sleeve (110) fitted onto one end and the limiting support ring (130) installed at the other end via a pin. The handheld rotating mechanism (200) includes a connecting rotating rod (210) and a driving insulating handle (220). The driving insulating handle (220) is rotatably mounted on the insulating handheld rod sleeve (120) and located at the end where the limiting support ring (130) is provided. The connecting rotating rod (210) is mounted on the driving insulating handle (220) and located inside the insulating handheld rod sleeve (120). The clamping mechanism (300) includes a grounding wire clamp (310), a clamping claw (320), a connecting movable ring (330), and a rotating tensioning threaded rod (340). The grounding wire clamp (310) is fixedly installed on the insulating handheld rod sleeve (120) and located at the end where the aluminum sleeve (110) is installed. A threaded mounting hole is provided through the grounding wire clamp (310). The clamping claw (320) is installed on the grounding wire clamp (310) by a locking pin (350). One end of the rotating tensioning threaded rod (340) is connected to the connecting rotating rod (210). The other end is threaded to the grounding clamp (310). The connecting movable ring (330) is rotatably mounted on the outward end of the rotating tension threaded rod (340). The inward foot of the clamping claw (320) is rotatably connected to the connecting movable ring (330) through the locking pin (360). By rotating the drive insulating handle (220), the rotating tension threaded rod (340) moves axially along the insulating hand handle sleeve (120). When the rotating tension threaded rod (340) moves axially along the insulating hand handle sleeve (120), it drives the clamping claw (320) to open and close.

2. The wire core clamping device in a narrow space for power distribution equipment according to claim 1, characterized in that, The clamping claw (320) is provided with a slot, and a ring spring (370) is sleeved on the slot.

3. The wire core clamping device in a narrow space for power distribution equipment according to claim 1, characterized in that, The grounding clamp (310) is made of conductive material.

4. The wire core clamping device in a narrow space for power distribution equipment according to claim 3, characterized in that, A wire clamping sleeve (380) is installed on the grounding wire clamp (310), and a copper wire (390) is connected to the wire clamping sleeve (380).

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