Puncture wire clamp

Abstract

The utility model relates to the technical field of puncture wire clamps, in particular to a puncture wire clamp. According to the technical scheme, the device comprises a first mounting seat, an upper seat and a lower seat, the upper seat and the lower seat are slidably mounted on the first mounting seat, a fastening bolt is fixedly mounted on the lower seat, two second mounting seats are mounted on the fastening bolt, puncture tooth pieces are fixedly mounted on the two sides of each second mounting seat, and the puncture tooth pieces are fixedly mounted on the lower seat. And a second mounting seat in sliding connection with the fastening bolt is fixedly connected with the upper seat. The distance between the bottom end of the driving rod and the adjusting rod is adjusted through the limiting mechanism, and the sum of the distance and the length of the portion, located at the bottom of the second installation base below, of the driving rod is the maximum moving distance between the two second installation bases, so that the device can adapt to cables of different thicknesses; the penetration distance of the puncture tooth sheets on different cables can be controlled, the cables or the puncture wire clamp can be prevented from being damaged by too large torque, and poor contact caused by too small torque is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture wire clamps, in particular to a puncture wire clamp. Background Art

[0002] The puncture wire clamp is fast, simple and reliable. It connects the insulated wires through the puncture structure without stripping. The main components of the puncture wire clamp include an insulating shell, a puncture blade, a waterproof rubber pad and a torque bolt. During the cable branch connection process, the puncture wire clamp tightens the torque nut to allow the puncture blade on the insulator to penetrate the cable insulation layer and the metal conductor to achieve cable connection. Its self-sealing structure can effectively prevent moisture, water and corrosion, and extend the service life of the insulated wire and the wire clamp.

[0003] The existing puncture wire clamp cannot intuitively see the relative movement distance between the two puncture blades, so it is impossible to observe the depth of the puncture blades entering the cable, and it is impossible to control the magnitude of the torque applied to the cable. Excessive torque may damage the cable or the puncture wire clamp, while too small torque may cause poor contact. Summary of the invention

[0004] The utility model aims to solve the problems existing in the background technology and to provide a puncture wire clamp which can visually observe the depth of two puncture blades entering the cable.

[0005] The technical solution of the utility model: a puncture wire clamp comprises a first mounting seat, an upper seat and a lower seat slidably mounted on the first mounting seat, and further comprises:

[0006] A fastening bolt is fixedly installed on the lower seat, and two second mounting seats are installed on the fastening bolt, one of the second mounting seats is fixedly connected to the fastening bolt, and the other second mounting seat is slidably connected to the fastening bolt, and puncture teeth are fixedly installed on both sides of the second mounting seat, and the second mounting seat slidably connected to the fastening bolt is fixedly connected to the upper seat;

[0007] A limiting mechanism is installed between the two first mounting seats, and the limiting mechanism adjusts the maximum distance that the two second mounting seats move along the axial direction of the fastening bolt.

[0008] Optionally, a nut is threadedly connected to the fastening bolt, and the nut is rotatably connected to the upper seat.

[0009] Optionally, the limiting mechanism includes an internally threaded rod rotatably mounted on the lower seat, an adjusting rod threadedly connected to the internally threaded rod and slidably connected to one of the second mounting seats, a driving rod slidably mounted on another of the second mounting seats, a supporting block rotatably mounted on the driving rod, a driving plate slidably mounted on one of the second mounting seats, a driving block fixedly mounted on the driving plate, a cavity provided in a fastening bolt, a plurality of telescopic rods fixedly mounted in the cavity, a lifting rod fixedly mounted on the telescopic rod, and an indicating rod fixedly mounted on the lifting rod, and the lifting rod abuts against the driving block.

[0010] Optionally, a plurality of springs are fixedly installed in the cavity, and the other ends of the springs are fixedly connected to the lifting rod.

[0011] Optionally, the indicating rod passes through the nut and extends to the outside of the nut.

[0012] Optionally, the top end of the indicating rod and the top end of the nut are in a horizontal position, and a scale is provided on the top of the indicating rod, and the scale is used to indicate the relative movement distance between the two second mounting seats.

[0013] Optionally, a handle is fixedly mounted on the internal threaded rod, a scale is provided on the handle, and a pointer is provided on the lower seat and above the handle.

[0014] Optionally, a waterproof cap is movably mounted on the first mounting seat.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The distance between the bottom end of the driving rod and the adjusting rod is adjusted by the limiting mechanism. The sum of this distance and the length of the driving rod at the bottom of the second mounting seat below is the maximum moving distance between the two second mounting seats, which can adapt to cables of different thicknesses and control the penetration distance of the puncture teeth on different cables, thereby preventing excessive torque from damaging the cable or the puncture clamp and avoiding poor contact caused by too small a torque.

[0017] The scales on the indicator rod and the handle can be used to accurately tell the distance that the puncture tooth piece penetrates into the cable. When the drive rod moves to the limit distance, the nut will be unable to rotate to prevent excessive torque. When the nut can no longer be rotated, the indicator rod is located above the nut. At this time, the indicator rod can be bent to allow the indicator rod to limit the nut axially to prevent the nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;

[0019] Figure 2 Provide an internal cross-sectional view of the utility model;

[0020] Figure 3 Provide the utility model Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 A structural schematic diagram of the mounting seat and the puncture tooth piece of the utility model is given.

[0022] Figure numerals: 1. first mounting seat; 101. lower seat; 102. upper seat; 2. fastening bolt; 201. nut; 3. second mounting seat; 301. puncture tooth plate; 4. internal threaded rod; 401. adjustment rod; 402. turn handle; 403. drive rod; 404. support block; 405. drive plate; 406. drive block; 407. telescopic rod; 408. spring; 409. lifting rod; 410. indicator rod; 5. waterproof cap. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example

[0025] like Figure 1-2 As shown, a puncture wire clamp proposed by the utility model includes a first mounting seat 1, an upper seat 102 and a lower seat 101 slidably mounted on the first mounting seat 1, and further includes: a fastening bolt 2 is fixedly mounted on the lower seat 101, two second mounting seats 3 are mounted on the fastening bolt 2, one of the second mounting seats 3 is fixedly connected to the fastening bolt 2, and the other second mounting seat 3 is slidably connected to the fastening bolt 2, puncture teeth 301 are fixedly mounted on both sides of the second mounting seat 3, and the second mounting seat 3 slidably connected to the fastening bolt 2 is fixedly connected to the upper seat 102. A nut 201 is threadedly connected to the fastening bolt 2, and the nut 201 is rotatably connected to the upper seat 102. By rotating the nut 201, the fastening bolt 2 can be driven to move along the axial direction of the nut 201, thereby driving the second mounting seat 3 below to move toward the upper mounting seat, thereby driving the puncture tooth piece 301 below to move toward the puncture tooth piece 301 above, and then the puncture tooth piece 301 can puncture the cable, thereby enabling conductivity. A waterproof cap 5 is movably installed on the first mounting seat 1.

[0026] like Figure 2-4As shown, the limiting mechanism is installed between the two first mounting seats 1, and the limiting mechanism adjusts the maximum distance that the two second mounting seats 3 move along the axis direction of the fastening bolt 2. The limiting mechanism includes an internal threaded rod 4 rotatably mounted on the lower seat 101, an adjustment rod 401 threadedly connected to the internal threaded rod 4 and slidably connected to one of the second mounting seats 3, a driving rod 403 slidably mounted on the other second mounting seat 3, a support block 404 rotatably mounted on the driving rod 403, a driving plate 405 slidably mounted on one of the second mounting seats 3, a driving block 406 fixedly mounted on the driving plate 405, a cavity provided in the fastening bolt 2, a plurality of telescopic rods 407 fixedly mounted in the cavity, a lifting rod 409 fixedly mounted on the telescopic rod 407, and an indicating rod 410 fixedly mounted on the lifting rod 409, and the lifting rod 409 abuts against the driving block 406. When fixing cables of different thicknesses, rotating the internal threaded rod 4 can drive the adjusting rod 401 to perform lifting and lowering movements, that is, the distance between the bottom end of the driving rod 403 and the adjusting rod 401 can be adjusted. The sum of this distance and the length of the driving rod 403 at the bottom of the second mounting seat 3 below is the maximum moving distance between the two second mounting seats 3, that is, half of the penetration distance of the puncture tooth plate 301 into the cable. When the nut 201 is rotated to bring the two mounting seats closer to each other, the top end of the adjusting rod 401 moves toward the driving rod 403. When it contacts the driving rod 403, it will drive the driving rod 403 to move upward, thereby driving the supporting block 404 to move upward. The supporting block 404 will drive the driving plate 405 to move upward, thereby driving the driving block 406 to move upward, thereby driving the lifting rod 409 to rise, and then causing the indicating rod 410 to rise.

[0027] Furthermore, the indicator rod 410 penetrates the nut 201 and extends to the outside of the nut 201. The top of the indicator rod 410 is in a horizontal position with the top of the nut 201, and a scale is provided on the top of the indicator rod 410, and the scale is used to indicate the relative movement distance between the two second mounting seats 3. A handle 402 is fixedly installed on the internal threaded rod 4, and a scale is provided on the handle 402. A pointer is provided on the lower seat 101 and located above the handle 402. The internal threaded rod 4 can be driven to rotate by rotating the handle 402, and the scale corresponding to the pointer on the handle 402 is the distance between the bottom end of the driving rod 403 and the adjusting rod 401 at this time, and the length of the indicator rod 410 after extending out of the nut 201 is the distance moved after the driving rod 403 contacts the adjusting rod 401. At this time, the moving distance between the two second mounting seats 3 is: the scale of the handle 402 + the scale on the indicator rod 410, so the distance that the puncture tooth piece 301 penetrates into the cable can be accurately known, and when the driving rod 403 is driven, the driving rod 403 can be driven to rotate. After the rod 403 moves to the limit distance, the nut will not be able to rotate, preventing the torque from being too large, and the distance between the bottom end of the driving rod 403 and the adjusting rod 401 can be adjusted by rotating the internal threaded rod 4, which can adapt to cables of different thicknesses and control the penetration distance of different cables. When the nut 201 cannot be rotated any further, the indicator rod 410 is located above the nut 201. At this time, the indicator rod 410 is bent, so that the indicator rod 410 can limit the nut 201 axially to prevent the nut from loosening.

[0028] A plurality of springs 408 are fixedly installed in the cavity, and the other end of the spring 408 is fixedly connected to the lifting rod 409. The spring 408 ensures that the lifting rod 409 can abut against the driving block 406.

[0029] Working principle: When fixing the cable, the thickness of the insulating layer on the cable is adjusted: the distance between the bottom end of the driving rod 403 and the adjusting rod 401 can be adjusted by rotating the internal threaded rod 4. The sum of this distance and the length of the driving rod 403 at the bottom of the second mounting seat 3 below is the maximum moving distance between the two second mounting seats 3, that is, half of the penetration distance of the piercing tooth piece 301 into the cable. When the nut 201 is rotated to bring the two mounting seats closer to each other, the top end of the adjusting rod 401 moves toward the driving rod 403. When it contacts the driving rod 403, it will drive the driving rod 403 to move upward, and then drive the support block 404 to move upward. The support block 404 will drive the driving plate 405 to move upward, and then drive the driving block 406 to move upward, thereby driving the lifting rod 409 to rise, and then the indicating rod 410 to rise.

[0030] Furthermore, rotating the handle 402 can drive the internal threaded rod 4 to rotate, and the scale corresponding to the pointer on the handle 402 is the distance between the bottom end of the driving rod 403 and the adjusting rod 401 at this time, and the length of the indicator rod 410 after extending out of the nut 201 is the distance moved after the driving rod 403 contacts the adjusting rod 401. At this time, the moving distance between the two second mounting seats 3 is: the scale of the handle 402 + the scale on the indicator rod 410, so that the distance that the puncture tooth piece 301 penetrates into the cable can be accurately known, and when the driving rod 403 moves to the limit distance, the nut will not be able to rotate to prevent excessive torque. When the nut 201 cannot be rotated any further, the indicator rod 410 is located above the nut 201. At this time, bending the indicator rod 410 can make the indicator rod 410 axially limit the nut 201 to prevent the nut from loosening.

[0031] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A puncture wire clamp, comprising a first mounting seat (1), an upper seat (102) and a lower seat (101) slidably mounted on the first mounting seat (1), characterized in that: Also includes: A fastening bolt (2) is fixedly mounted on the lower seat (101), and two second mounting seats (3) are mounted on the fastening bolt (2), one of the second mounting seats (3) is fixedly connected to the fastening bolt (2), and the other second mounting seat (3) is slidably connected to the fastening bolt (2), puncture teeth (301) are fixedly mounted on both sides of the second mounting seat (3), and the second mounting seat (3) slidably connected to the fastening bolt (2) is fixedly connected to the upper seat (102); A limiting mechanism is installed between the two first mounting seats (1), and the limiting mechanism adjusts the maximum distance that the two second mounting seats (3) move along the axial direction of the fastening bolt (2).

2. A puncture wire clamp according to claim 1, characterized in that: A nut (201) is threadedly connected to the fastening bolt (2), and the nut (201) is rotatably connected to the upper seat (102).

3. A puncture wire clamp according to claim 2, characterized in that: The limiting mechanism comprises an internal threaded rod (4) rotatably mounted on the lower seat (101), an adjusting rod (401) threadedly connected to the internal threaded rod (4) and slidably connected to one of the second mounting seats (3), a driving rod (403) slidably mounted on another of the second mounting seats (3), a supporting block (404) rotatably mounted on the driving rod (403), a driving plate (405) slidably mounted on one of the second mounting seats (3), a driving block (406) fixedly mounted on the driving plate (405), a cavity provided in the fastening bolt (2), a plurality of telescopic rods (407) fixedly mounted in the cavity, a lifting rod (409) fixedly mounted on the telescopic rod (407), and an indicating rod (410) fixedly mounted on the lifting rod (409), wherein the lifting rod (409) abuts against the driving block (406).

4. A puncture wire clamp according to claim 3, characterized in that: A plurality of springs (408) are fixedly installed in the cavity, and the other end of the spring (408) is fixedly connected to the lifting rod (409).

5. A puncture wire clamp according to claim 3, characterized in that: The indicating rod (410) passes through the nut (201) and extends to the outside of the nut (201).

6. A puncture wire clamp according to claim 5, characterized in that: The top end of the indicating rod (410) is in a horizontal position with the top end of the nut (201), and a scale is provided on the top of the indicating rod (410), and the scale is used to indicate the relative movement distance between the two second mounting seats (3).

7. A puncture wire clamp according to claim 5, characterized in that: A handle (402) is fixedly mounted on the internal threaded rod (4), a scale is provided on the handle (402), and a pointer is provided on the lower seat (101) and located above the handle (402).

8. The puncture wire clamp according to claim 1, characterized in that: A waterproof cap (5) is movably mounted on the first mounting seat (1).

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