CN206922047U - Low-voltage insulation wire connects Fast Installation wire clamp - Google Patents

Abstract

The utility model discloses a fast installation clamp for low-voltage insulated wire connection, which mainly includes a bracket, a lower clamping seat, a screw rod and a locking nut. An upper puncture blade is arranged on the bottom surface of the upper part, and the lower clamping seat is located below the upper clamping part and corresponds to the upper clamping part. A lower puncture blade is arranged on the top surface of the lower clamping seat. The lower part of the bracket is provided with a threaded hole, and the screw is screwed in the threaded hole. The upper end of the screw is rotatably connected to the lower clamping seat, and a guiding mechanism is arranged between the lower clamping seat and the bracket. The lower end of the utility model is provided as a tightening part, and the lock nut is screwed on the screw rod located below the bracket, and a branch line access terminal is also set on the bracket. The utility model has the advantages of avoiding the power failure operation of the main line during use, Guarantee the normal power consumption of other power users.

Description

Low voltage insulated wire connection quick installation clamp

technical field

The utility model relates to the technical field of wire connection devices, more specifically to the technical field of low-voltage insulated wire connection devices.

Background technique

In the low-voltage distribution network, the transmission line generally adopts a three-phase four-wire system. When the power user needs to connect to the power grid, it is necessary to connect the branch line of the power user to any one of the main lines in the three-phase line. At present, Generally, the piercing clamp is used to connect the main line and the branch line. At present, the common puncture clamps on the market are mainly composed of an insulating shell, a torque nut and a puncture blade. Cable insulation, which is in contact with the conductor so that the main line can be electrically connected to the branch line without stripping the cable insulation. However, the current common puncture clamps have the following disadvantages: since the main line is generally mounted on the utility pole, when the puncture clamp is installed, the main line and the branch line need to be stuck in the puncture clamp at the same time, so it must be used by a bucket truck It is very inconvenient to install the piercing wire clamp after the equipment is raised to a high place, and the torque nut is generally connected to the piercing blade. When installing the piercing wire clip, it is easy to cause leakage accidents, so the main line must be powered off. , and at this time will inevitably lead to power outages for other branch line users on the main line, causing great inconvenience to the normal power consumption of other electricity users.

Utility model content

The purpose of this utility model is to solve the above-mentioned deficiencies by providing a low-voltage insulated wire connection fast installation clip with simple structure, which does not need to perform power-off operation during installation, effectively ensures the normal power consumption of other electricity users, and is very convenient to install. .

The technical solution that the utility model adopts in order to solve the above technical problems is as follows:

The low-voltage insulated wire is connected to the fast installation clamp, which mainly includes a bracket, a lower clamping seat, a screw rod and a lock nut. The upper part of the bracket is set as an upper clamping part, and an upper A puncture blade, the lower clamping seat is located below the upper clamping part and corresponds to the upper clamping part, a lower puncture blade is arranged on the top surface of the lower clamping seat, and a thread is provided on the lower part of the bracket hole, the screw is screwed in the threaded hole, the upper end of the screw is rotatably connected to the lower clamping seat, a guiding mechanism is arranged between the lower clamping seat and the bracket, and the lower end of the screw is set as a tightening part , the lock nut is screwed on the screw rod located below the bracket, and a branch line access terminal is also arranged on the bracket.

The stent is C-shaped.

The bottom surface of the upper clamping part is arc-shaped, and the top surface of the lower clamping seat is arc-shaped corresponding to the bottom surface of the upper clamping part.

It also includes a bearing, the lower part of the lower clamping seat is provided with a limiting hole, and an annular locking groove is also opened at the limiting hole, the bearing is installed in the annular locking groove, and on the upper end of the screw rod An annular limiting groove is provided, and the upper end of the screw rod is movably inserted in the limiting hole, and is clamped in the bearing through the annular limiting groove.

The branch line access end is composed of a wire lug and a bolt, and a screw hole is opened on the lower side of the bracket, and a mounting hole is opened on the wire lug, and the bolt is screwed in after passing through the mounting hole of the wire lug. Lock the wire lug on the bracket in the screw hole of the bracket.

The tightening portion of the screw is composed of a loosening screw head and a torque screw head, the torque screw head is located below the loosening screw head, a connecting body is arranged between the loosening screw head and the torque screw head, and the locking nut , Unscrew the screw head and torque the outer diameter of the screw head to decrease in turn.

It also includes a spring washer sleeved on the screw rod and located between the bracket and the locking nut.

The guide mechanism is composed of a guide groove opened on the inner side wall of the bracket and a limit clamp arranged on the side of the lower clamping seat, and the limit clamp is movably clamped in the guide groove of the bracket .

The upper side of the C-shaped bracket is also provided with a detachment prevention part inclined to the outside.

The upper puncture blades and the lower puncture blades are respectively composed of 2-4 rows, and the number of each row is 4-6 respectively.

The beneficial effect that the utility model can achieve by adopting the above-mentioned technical solution is: when using the low-voltage insulated wire to connect the fast installation wire clip to connect and install the main line and the branch line, first connect the branch line to the support through the branch line access end, Then hang the clamp on the main line with the help of an insulating tool, and turn the screw to pierce the insulation layer of the main line through the upper puncture blade and the lower puncture blade, so that the main line and the branch line are connected, so that it is not necessary to snap the main line and the branch line into the traditional Therefore, live installation can be carried out on the ground with the help of insulating tools, which not only makes the installation very convenient, greatly reduces the labor intensity and installation cost of the installers, but also avoids power failure operations on the main line, ensuring other Normal electricity consumption by electricity users; there is a connecting body between the loosening screw head and the torque screw head, so that the tightening torque can be controlled, and the phenomenon of excessive or too small tightening torque can be avoided.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a top structural schematic diagram of the lower clamping seat.

detailed description

As shown in Figure 1, the low-voltage insulated wire is connected to the quick installation clamp, which mainly includes a bracket 1, a lower clamping seat 2, a screw rod 3, a lock nut 4, a bearing 11 and a spring washer 22, and the bracket 1 is C-shaped. , the upper part of the bracket 1 is provided with an upper clamping part 5, the bottom surface 9 of the upper clamping part 5 is arc-shaped, and an upper piercing blade 6 is arranged on the bottom surface 9 of the upper clamping part 5, and the lower The clamping seat 2 is located below the upper clamping part 5 and corresponds to the upper clamping part 5 . A guide mechanism is provided between the lower clamping seat 2 and the bracket 1, and the guide mechanism consists of a guide groove 23 opened on the inner side wall of the bracket 1 and a guide groove 23 provided on the side of the lower clamping seat 2. The limiting clamping plate 24 is formed, and the limiting clamping plate 24 is movably clamped in the guide groove 23 of the bracket 1 . The top surface 10 of the lower clamping seat 2 is arc-shaped corresponding to the bottom surface 9 of the upper clamping part 5, and a lower piercing blade 7 is arranged on the top surface 10 of the lower clamping seat 2, as shown in FIG. 2 As shown, the upper puncture blade 6 and the lower puncture blade 7 are composed of 2-4 rows respectively, and the number of each row is 4-6 respectively. A threaded hole 8 is provided at the bottom of the bracket 1, and the screw 3 is screwed in the threaded hole 8. The upper end of the screw 3 is rotatably connected with the lower clamping seat 2, and can be carried out as follows: Connection: the lower part of the lower clamping seat 2 is provided with a limiting hole 12, and an annular locking groove 13 is also opened at the limiting hole 12, and the bearing 11 is installed in the annular locking groove 13, and on the screw rod 3 An annular limiting groove 14 is opened on the upper end, and the upper end of the screw rod 3 is movably inserted in the limiting hole 12 and locked in the bearing 11 through the annular limiting groove 14 . The lower end of the screw rod 3 is provided with a tightening portion. The tightening portion of the screw rod 3 is composed of a loosening screw head 19 and a torque screw head 20. The torque screw head 20 is located below the loosening screw head 19. A connecting body 21 is arranged between the torque screw head 20 , and the outer diameters of the locking nut 4 , the unscrewed screw head 19 and the torque screw head 20 are successively reduced. The locking nut 4 is screwed on the screw rod 3 below the bracket 1 , and the spring washer 22 is sleeved on the screw rod 3 and is located between the bracket 1 and the locking nut 4 . On the support 1, a branch line access end is also provided, and the branch line access end is composed of a wire lug 15 and a bolt 16. A screw hole 17 is provided on the lower side of the support 1, and a screw hole 17 is provided on the described wire lug 15. Mounting holes 18, the bolts 16 pass through the mounting holes 18 of the wire lugs 15 and are screwed into the screw holes 17 of the bracket 1 to lock the wire lugs 15 on the bracket 1. The wire lugs 15 can be purchased directly from the market Obtained, the upper side of the C-shaped bracket 1 is also provided with a detachment preventing portion 25 inclined to the outside thereof.

When installing this low-voltage insulated wire connection quick installation clamp, first strip off the insulation layer at the end of the branch line cable of the power user that needs to be connected, and fix the end of the branch line cable and the wire lug 15 together by punching , and then fix the wire lug 15 on the bracket 1 through the bolt 16, then hang the wire clip on the main wire with the help of insulating tools such as insulating rods, and prevent it from falling off the main wire through the anti-off part 25, and then pass the insulating sleeve The barrel is sleeved on the torque screw head 20, the screw 3 is tightened and rotated, the lower clamping seat 2 is moved upward along the guide groove 23, and the insulation layer of the main line is pierced through the upper piercing blade 6 and the lower piercing blade 7, and Contact the conductor of the main line to make the main line and the branch line conduction. In order to prevent the upper puncture blade 6 and the lower puncture blade 7 from damaging the main line due to excessive tightening torque, or the tightening torque is too small to meet the connection strength requirements, the diameter of the connecting body 21 can be set to an appropriate value according to the tightening torque. When the tightening torque just reaches the requirement, the connecting body 21 breaks, and the torque screw head 20 falls off from the screw rod 3 . Then, replace the larger sleeve of the caliber and tighten the lock nut 4 to lock the screw 3, and unscrew the screw head 19 to rotate the screw 3 when the installation clamp needs to be removed from the main line. The outer diameters of lock nut 4, loosen screw head 19 and torque screw head 20 are successively reduced, so that sleeves of different calibers can be sleeved on lock nut 4, loosen screw head 19 and torque screw head 20 respectively .

Claims (10)

1. low-voltage insulation wire connects Fast Installation wire clamp, it is characterised in that：It mainly includes support, lower clamping seat, screw rod And locking nut, the top of the support, which is set, presents card-tight part, and piercing blade is provided with bottom surface of card-tight part on this, The lower clamping seat is located at below upper card-tight part, and corresponding with upper card-tight part, under being provided with the top surface of the lower clamping seat Piercing blade, screwed hole is offered in the bottom of the support, the screw rod is located in the screwed hole, the upper end of the screw rod Rotationally it is flexibly connected with lower clamping seat, guiding mechanism is provided between lower clamping seat and support, the bottom of screw rod is set Put in portion is tightened, the locking nut is located on the screw rod below support, and branch line incoming end is additionally provided with support.

2. low-voltage insulation wire according to claim 1 connects Fast Installation wire clamp, it is characterised in that：The support is in C Type.

3. low-voltage insulation wire according to claim 2 connects Fast Installation wire clamp, it is characterised in that：The upper card-tight part Bottom surface it is curved, the top surface of the lower clamping seat is in the arc corresponding with the bottom surface of upper card-tight part.

4. the low-voltage insulation wire connection Fast Installation wire clamp according to claim 1,2 or 3, it is characterised in that：It is also wrapped Bearing is included, the bottom of the lower clamping seat offers spacing hole, and annular slot, the bearing are further opened with the spacing hole In annular slot, annular spacing groove is offered on the upper end of the screw rod, the upper end activity of the screw rod is inserted Put in spacing hole, and by its annular spacing groove holding in bearing.

5. the low-voltage insulation wire connection Fast Installation wire clamp according to claim 1,2 or 3, it is characterised in that：The branch Line incoming end is made up of line nose and bolt, and screw is offered in the following side of the support, peace is offered on the line nose Hole is filled, the mounting hole of the bolt from line nose is located in the screw of support after passing through, and line nose lock is put on support.

6. the low-voltage insulation wire connection Fast Installation wire clamp according to claim 1,2 or 3, it is characterised in that：The spiral shell The portion of tightening of bar is formed by unscrewing screw head and torque screw head, and the torque screw head is revolving positioned at unscrewing below screw head It is provided with connector between loose screw head and torque screw head, the locking nut, unscrews the outer of screw head and torque screw head Footpath is sequentially reduced.

7. low-voltage insulation wire according to claim 6 connects Fast Installation wire clamp, it is characterised in that：It also includes bullet Spring packing ring, the spring washer are nested with screw rod, and between support and locking nut.

8. the low-voltage insulation wire connection Fast Installation wire clamp according to claim 1,2 or 3, it is characterised in that：It is described to lead To mechanism by the guide groove that is opened up on the madial wall of the support and the limit card board structure for being arranged on the lower clamping seat sidepiece Into the limit card board activity holding is in the guide groove of support.

9. low-voltage insulation wire according to claim 2 connects Fast Installation wire clamp, it is characterised in that：It is described C-shaped Support upper lateral part is additionally provided with to its inclined anti-delinking part in outside.

10. the low-voltage insulation wire connection Fast Installation wire clamp according to claim 1,2 or 3, it is characterised in that：On described Piercing blade and lower piercing blade are made up of 2 ~ 4 rows respectively, and the quantity often arranged is respectively 4 ~ 6.