CN206379478U - A kind of wire clamp - Google Patents

Abstract

The utility model discloses a wire clamp, which comprises: a wire clamp body and a pressure plate bolt; the wire clamp body is a square base body, a wire installation hole is arranged in the center of one end surface of the square base body, and the wire installation hole is an internal thread blind hole, which is installed with the wire The upper end of the square substrate with vertical holes is provided with mounting screw holes; the pressure plate bolts include: the bolts assembled up and down in sequence, the converter, the first fracture part, and the pressure plate; the outer surface of the converter is provided with internal threads suitable for the mounting screw holes. external thread. The utility model can install the wire in the wire installation hole of the wire clamp body, and compress the wire through the torque self-locking pressure plate bolt, which can store and release the energy change of thermal expansion and contraction caused by the load change of the wire, and prevent The wire is loose, so as to ensure the stable connection between the wire and the wire, the wire and the equipment, and avoid the occurrence of power failure; there is no special requirement for the wire diameter size, and one device can correspond to multiple wire diameters. It has good versatility and has a certain market. value and application prospects.

Description

a wire clamp

technical field

The utility model relates to a wire clip used between wires or wires and equipment, in particular to a wire clip with strong oxidation resistance, good metal mechanical properties and good interchangeability.

Background technique

At present, a universal device for wiring is usually provided in electrical equipment to organize and fix the wires. The traditional wiring device includes a piece, and several through holes are arranged at both ends thereof, and a plurality of screws are used to pass through these through holes to fix the electric wires on the casing of the electrical equipment. Specifically: when in use, position the electric wire at the position where the shell is to be fixed, press the sheet against the electric wire, then pass a number of screws through the through holes of the sheet and screw them on the studs of the shell, so that the The flat cable is clamped between the sheet body and the shell. This device is simple in structure, easy to operate, and widely used, but there are still some problems in the application of this device:

1. The use of wires is easy to cause thermal expansion and contraction due to changes in load, resulting in changes in its own energy, and after a period of use, the wires are easy to oxidize and loosen, which affects the stable connection between wires, wires and equipment , resulting in power failure.

2. The size of the wire diameter is relatively limited, and the versatility is poor. A single device can only correspond to a single wire diameter, and the interchangeability is extremely poor.

Utility model content

Purpose of the utility model: In order to solve the technical defects of the existing wiring devices, provide a wire clamp, which has good metal mechanical properties, large wire contact area, and strong flow capacity, and is especially suitable for wires with a cross-sectional area of ^25-300mm2 . wire connection.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a kind of wire clip is provided, including: wire clip body 2, pressure plate bolt; The wire clip body 2 is a square base body, and the center of one end surface of the square base body is provided with Wire installation hole 3, described wire installation hole 3 is internally threaded blind hole, and the upper end of the square substrate perpendicular to wire installation hole 3 is provided with installation screw hole; Described platen bolt comprises: the bolt that assembles up and down sequentially, converter 7, The first breaking part 8, the pressure plate 9; the external surface of the converter 7 is provided with an external thread compatible with the internal thread of the mounting screw hole.

Further, the clamp further includes: a connecting portion 6 extending from the lower end of the square base along the opening direction of the wire installation hole 3 , and the connecting portion 6 is provided with a device connecting hole 1 .

Further, the bolt includes: a bolt body and an outer hexagon bolt head 5, the upper part of the bolt body is connected to the outer hexagon bolt head 5 through a second fracture part, and the lower part is connected to the converter 7 through a screw rod.

Further, the bolt, the converter 7 , the first breaking portion 8 and the pressure plate 9 are in an integrated structure.

Further, the pressure plate bolt further includes: an insulating part, and the insulating part is installed on the second fractured part between the outer hexagonal bolt head 5 and the bolt main body.

Further, the insulating component is an insulating rubber ring 4 .

Further, the number of the mounting screw holes is two, and the pressure plate bolts are installed in the mounting screw holes for clamping and fixing the wires 10 arranged in the wire mounting holes 3 .

Further, the clamp body 2 is made of aluminum alloy.

Further, the pressure plate bolts are made of brass.

The beneficial effects of the utility model are: the utility model has a reasonable structure and is easy to use, and the wire can be installed in the wire installation hole of the clamp body, and the wire can be compressed by the moment self-locking pressure plate bolt, and the wire can be stored and released in the The energy change of thermal expansion and contraction caused by load changes prevents the wires from loosening, thereby ensuring a stable connection between wires and wires, and between wires and equipment, and avoiding power failures; at the same time, there is no special requirement for wire diameters. It can correspond to multiple wire diameters, has good versatility, and has certain market value and application prospects.

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the cable clip of the present invention.

Fig. 2 is a left view of the utility model wire clip.

Fig. 3 is a front view of the utility model wire clamp.

Fig. 4 is a top view of the wire clip of the present invention.

Fig. 5 is a structural schematic diagram of the pressure plate bolt of the present invention.

Fig. 6 is a schematic diagram of the working state (1) of the pressure plate bolts in the first embodiment.

Fig. 7 is a schematic diagram of the working state (2) of the pressure plate bolts in the first embodiment.

Reference signs: 1-equipment connection hole, 2-clamp body, 3-conductor installation hole, 4-insulating rubber ring, 5-external hex bolt head, 6-connection part, 7-converter, 8-first break Department, 9-pressure plate, 10-wire.

detailed description

In order to make the technical problems solved by the utility model, the adopted technical solutions and the achieved technical effects clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, rather than limit the utility model.

Referring to Figures 1-5, the utility model discloses a wire clip, including: a wire clip body 2 and a pressure plate bolt; the wire clip body 2 is a square base body, and a wire installation hole 3 is provided in the center of one end surface of the square base body, The wire installation hole 3 is a blind hole with internal threads, and the upper end of the square substrate perpendicular to the wire installation hole 3 is provided with a mounting screw hole; the pressure plate bolts include: bolts assembled up and down in sequence, a converter 7, and a first fracture portion 8 . Pressure plate 9; the external surface of the converter 7 is provided with an external thread adapted to the internal thread of the mounting screw hole.

Preferably, the wire clamp further includes: a connecting portion 6 extending from the lower end of the square base along the opening direction of the wire installation hole 3 , and the connecting portion 6 is provided with a device connecting hole 1 .

Preferably, the bolt includes: a bolt body and an outer hexagonal bolt head 5, the upper part of the bolt body is connected to the outer hexagonal bolt head 5 through a second fracture part, and the lower part is connected to the converter 7 through a screw rod.

Preferably, the bolt, the converter 7, the first breaking portion 8 and the pressure plate 9 are of an integral structure.

Preferably, the pressure plate bolt further includes: an insulating part, and the insulating part is installed on the second fractured part between the outer hexagonal bolt head 5 and the bolt main body.

Preferably, the insulating part is an insulating rubber ring 4 made of aging-resistant and flame-retardant silicone rubber.

Preferably, the number of the mounting screw holes is two, and the pressure plate bolts are installed in the mounting screw holes for clamping and fixing the wires 10 arranged in the wire mounting holes 3 .

Preferably, the clamp body 2 is made of aluminum alloy.

Preferably, the pressure plate bolts are made of brass.

The working process of the present utility model is:

Step 1: Connect the branch wires and tighten the torque pressure plate bolts;

Step 2: According to different specifications of switchgear outlets, select a switchgear with a suitable specification and a universal device for wiring;

Step 3: When the first fractured part 8 and the second fractured part break off due to external force, the wire 10 is compressed;

Step 4: Put on the insulating protective cover to complete the product installation.

Example 1

This embodiment discloses a wire clip, including: a wire clip body 2, a connecting part 6, and a pressure plate bolt; Rectangular substrate, one end surface of the rectangular substrate is provided with wire installation hole 3, and described wire installation hole 3 is internally threaded blind hole, and the upper end of rectangular substrate perpendicular to wire installation hole 3 is provided with 2 installation screw holes; The lower end of the rectangular substrate extends along the opening direction of the wire installation hole 3, and the connection part 6 is provided with an equipment connection hole 1; the pressure plate bolts are made of high-purity brass, and the surface is treated with hot-dip tinning, which includes: The insulating rubber ring 4, the bolt 5, the converter 7, the first fracture part 8, and the pressure plate 9 are welded up and down in sequence; the outer surface of the converter 7 is provided with an external thread that is compatible with the internal thread of the mounting screw hole.

The bolt 5 includes: a bolt body and an outer hexagon bolt head 5 , the upper part of the bolt body is connected to the outer hexagon bolt head 5 through a second broken part, and the lower part is connected to the converter 7 through a screw rod.

The insulating rubber ring 4 is made of aging-resistant and flame-retardant silicone rubber, which is installed on the second fractured part between the outer hexagonal bolt head 5 and the bolt main body.

The number of the mounting screw holes is 2, and the external thread of the converter 7 of the pressure plate bolt matches the internal thread of the mounting screw hole, so as to clamp and fix the wire 10 arranged in the wire mounting hole 3, The number of pressure plate bolts is consistent with the number of mounting screw holes.

Referring to Figure 6-7, when in use, first fix the clamp on the device, place the wire 10 in the wire installation hole 3, and then use the wrench knob to turn the hex bolt head 5 and the converter 7 to convert the torque into pressure, so that the pressure plate 9. Compress the wire 10, and when both the first fracture part 8 and the second fracture part break, the wire compression work is completed.

The utility model (torque self-locking) pressure plate bolt has the following advantages:

1) Firm crimping: When the torque bolt exerts a force of about 30N·m on the wire, the torque bolt is enough to crimp the wire firmly, and the second fracture part will break to prevent the wire from being crimped and damaged. This is also a complete installation for the operator. important sign.

2) Special surface treatment: anti-corrosion and anti-oxidation, strong flow capacity, large contact area between chassis and wire, energy saving and low consumption.

3) Crimping does not damage the wire: When the torque bolt’s rotating crimping force on the wire may damage the wire, the first fracture part will break and will not rotate with the bolt, so the bolt only has the crimping force in the vertical direction on the wire, which overcomes the problem. Problems with traditional bolts that can crush wires.

4) Recyclable use: Compared with the previous torque bolts, the torque self-locking platen bolts adopted by the utility model overcome the disadvantage that the old torque bolts cannot be disassembled after installation.

5) Insulating rubber ring: The role of the rubber ring on the bolt is to reduce the buffer pressure, balance the crimping force, and separate the upper and lower parts of the hexagonal nut (that is, to separate the outer hexagonal bolt head from the bolt body) when the bolt is installed on the hexagonal sleeve.

The utility model is applied in the power distribution system of 10kV and below. It is overused as the connection between the wire and the electrical equipment. It is forged from high-strength conductive and over-current aluminum alloy material. It is a new equipment device that replaces the traditional C-shaped clamp, and has the following advantages:

A. Wide range of applications: such as connection of isolating switches, fuses, lightning arresters, load switches and other equipment.

B. Strong versatility: suitable for wire connection with a cross-sectional area of ^25-300mm2 .

C. Lightweight structure: Aluminum alloy die-casting is integrally formed without cumbersome parts.

D. Easy installation: the torque self-locking pressure plate bolts are directly crimped without damaging the wires, and no special tools are required.

E. Anti-corrosion and anti-oxidation: heat treatment process and surface tin-plating treatment to alleviate electrochemical corrosion.

F. Energy saving and low consumption: the contact area of the wire is large, and the flow capacity is strong.

G. Insulation protection: Waterproof and electric shock-proof, keep the line insulation state.

Note that the above content is only a preferred embodiment of the present utility model. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (9)

1. a kind of wire clamp, it is characterised in that including：Wire clip body, platen bolt；The wire clip body is square matrix, square The end face center of matrix is provided with wire mounting hole, and the wire mounting hole is blind screw hole, vertical with wire mounting hole Square matrix upper end is provided with installation screw；The platen bolt includes：The bolt that assembles successively up and down, converter, the first fracture Portion, platen；The outer surface of the converter is provided with the external screw thread adaptable with the internal thread of installation screw.

2. wire clamp according to claim 1, it is characterised in that the wire clamp also includes：Connecting portion, the connecting portion is certainly square The direction extension that opens up of shape matrix lower end edge wire mounting hole is formed, and the connecting portion is provided with equipment connecting hole.

3. wire clamp according to claim 1, it is characterised in that the bolt includes：Bolt body, outer-hexagonal bolt head, It is connected above the bolt body by the second fracture with outer-hexagonal bolt head, lower section is connected by screw rod with converter.

4. wire clamp according to claim 1, it is characterised in that the bolt, converter, the first fracture and platen are one Body formula structure.

5. wire clamp according to claim 1, it is characterised in that the platen bolt also includes：Insulating element, the insulation Part is arranged on the second fracture between outer-hexagonal bolt head and bolt body.

6. wire clamp according to claim 5, it is characterised in that the insulating element is insulation cushion rubber.

7. wire clamp according to claim 1, it is characterised in that the quantity of the installation screw is 2.

8. wire clamp according to claim 1, it is characterised in that the wire clip body uses aluminum alloy material.

9. wire clamp according to claim 1, it is characterised in that the platen bolt uses brass material.