CN215646062U

CN215646062U - Strain clamp capable of reliably clamping cable

Info

Publication number: CN215646062U
Application number: CN202122047880.6U
Authority: CN
Inventors: 陈伟卫; 黄仁安; 韩振山
Original assignee: Hogn Electrical Group Co ltd
Current assignee: Hogn Electrical Group Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-25
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a strain clamp capable of reliably clamping a cable, which comprises a support and a clamp body with a C-shaped cross section, wherein the clamp body is in running fit with the support; the advantage lies in the connection fastener body that can be better through the support that sets up to realize the ability of answering unusual operating mode environment to the fastener body through the buffer frame, the buffer frame that sets up simultaneously still can play the synchronization action, and the phenomenon of wire anchor clamps follow fastener body top roll-off when avoiding the cable to rock.

Description

Strain clamp capable of reliably clamping cable

Technical Field

The utility model relates to the field of strain clamps, in particular to a strain clamp capable of reliably clamping a cable.

Background

The strain clamp is used for fixing a cable to bear the tension of the cable and hanging the cable to a strain insulator-string group or a hardware fitting on a tower. The strain clamp can be divided into two types according to the difference of the structure and the installation condition: the first strain clamp needs to bear all tensile forces of a conducting wire, a lightning conductor and a stay wire, the clamp holding force is not less than 90% of the rated tensile force of the installed conducting wire or the lightning conductor, but the clamp is not used as a conductor. Such clamps include bolt-type strain clamps and wedge-shaped strain clamps. The wire clamp is characterized in that the wire clamp can be detached for additional use after the wire is installed; the wedge-shaped wire clamp is mainly characterized in that the steel strand is locked in the wire clamp under the action of the wedge split force. After the cable is installed in the cable clamp, the cable is pulled to be gradually in a locking state.

Wedge strain clamps are convenient to install and remove, and are therefore increasingly used in cable installations. The existing wedge-shaped strain clamp can be provided with a convex thorn inside a wedge, and a cable is further compressed through the convex thorn. However, in the actual use process, the cable is basically in the rigid clamping state after being tensioned through the wedge-shaped strain clamp, the cable is embedded into the clamping cable through the deformation of the cable clamp body, natural weather such as storm can be met in an overhead mode, once the swinging tension of the cable is large, the wedge-shaped block can be excessively compressed or even the wedge can slip from the cable clamp body, meanwhile, under the transitional compression state, the convex pricks can pierce the insulating layer of the cable, and electric leakage or even accidental occurrence is caused.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the strain clamp is simple in structure, convenient to operate and capable of reliably clamping cables and has a buffering effect.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a reliably press from both sides strain clamp of tight cable, includes that support and cross-section are the fastener body of C shape, fastener body and support normal running fit, this internal wedge-shaped wire anchor clamps that can dismantle of fastener, the support include the buffer frame, the both sides of fastener body all are provided with the arm-tie, the one end and the fastener body normal running fit of arm-tie, the other end of arm-tie is connected with the one end of buffer frame, the other end of buffer frame articulated have the rotating turret.

Furthermore, the two sides of the wire clamp body are symmetrically provided with fixed shafts, one end of the pulling plate is provided with a connecting hole, and the pulling plate is rotatably sleeved on the outer sides of the fixed shafts through the connecting hole; the pull plate has the advantages that the pull plate can be more stable and reliable when the pull wire clamp body is tensioned through the symmetrically arranged fixed shafts.

Furthermore, the buffer frame comprises a buffer cylinder body, a buffer rod is coaxially arranged in the buffer cylinder body, one end of the buffer rod extends out of the buffer cylinder body and is fixed with the pull plate, a pressing block is arranged at the other end of the buffer rod, a pressing spring is sleeved on the outer side of the buffer rod, one end of the pressing spring abuts against the pressing block, an anti-falling ring is arranged at the lower end of the buffer cylinder body, and the other end of the pressing spring abuts against the anti-falling ring; the advantage can effectively improve the adaptability of strain clamp reply cable when rocking through the pressure spring who sets up high strength, improves life and keeps fastener body and wire anchor clamps's synchronism.

Furthermore, two the arm-tie all be connected with the buffer frame, the rotating turret include the rotor plate, the other end of buffer frame articulated mutually with the one end that corresponds the rotor plate, the other end of two rotor plates passes through bolted connection.

Furthermore, the other ends of the two pulling plates are connected with one end of the same buffer frame.

Furthermore, the upper end of the wire clamp is provided with an anti-falling part matched with the wire clamp body; the wire clamp has the advantages that secondary protection can be carried out through the arranged anti-falling piece, and the wire clamp body is prevented from being broken by the wire clamp after the pulling force exceeds the standard.

Furthermore, the wire clamp comprises a first wedge-shaped plate and a second wedge-shaped plate, wherein wire grooves are formed in the first wedge-shaped plate and the second wedge-shaped plate, a plurality of pressing edges are arranged in the wire grooves, and the pressing edges on the first wedge-shaped plate are staggered with the pressing edges on the second wedge-shaped plate; the advantage lies in compressing tightly the arris that staggers mutually and set up and can avoid causing excessive damage to the cable when effectively compressing tightly the cable, especially to having insulating outer cable.

Furthermore, the outer side of the first wedge-shaped plate is provided with a guide post vertical to the length direction of the wire guide groove, and the second wedge-shaped plate is provided with a guide hole matched with the guide post; the advantage can improve wire anchor clamps's packaging efficiency greatly through the guide post that sets up and deflector, and it is convenient to use, still can ensure the simultaneous movement of first wedge board and second wedge board simultaneously.

Furthermore, reinforcing ribs are arranged on the outer side of the wire clamp body; the advantage is that the support intensity of fastener body can effectively be improved through the setting of strengthening rib.

Compared with the prior art, the cable clamp has the advantages that the cable clamp body can be better connected through the arranged support, the capacity of the cable clamp body for coping with abnormal working condition environments is realized through the buffer frame, namely, the buffer effect is realized when the tensile force of a cable exceeds the standard, and the damage to the insulating layer of the cable caused by the overlarge tensile force of the traditional wedge with the thorn protrusions is avoided. The buffer frame that sets up simultaneously still can play the synchronization action, avoids wire anchor clamps to separate from the fastener body, specifically is when the cable acutely rocks, and wire anchor clamps can take place thereupon to rock, and traditional strain clamp uses for a long time or ageing back, can appear wire anchor clamps when acutely rocking from the not hard up roll-off phenomenon of opening part of fastener body upper end. The buffer frame provided by the utility model can buffer, and when the cable is loosened, the cable clamp body can be effectively tensioned through the buffer, so that the phenomenon that the wire clamp slides out of the upper part of the cable clamp body when the cable shakes is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation position of the wire clamp body of the present invention;

FIG. 3 is a schematic view of the installation of the wire clamp of the present invention;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is a cross-sectional view of the stent of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

The utility model provides a reliably press from both sides strain clamp of tight cable, includes that support 3 and cross-section are the fastener body of C shape, fastener body and 3 normal running fit of support, this internal wedge wire anchor clamps 2 that can dismantle of fastener are provided with, and wire anchor clamps 2 include first wedge board 2.1 and second wedge board 2.2, all are equipped with the wire casing in first wedge board 2.1 and the second wedge board 2.2, are provided with many in the wire casing and compress tightly arris 2.3, and compress tightly arris 2.3 on the first wedge board 2.1 and the second wedge board 2.2 compress tightly arris 2.3 and stagger mutually. Meanwhile, the outer side of the first wedge-shaped plate 2.1 is provided with a guide post 2.4 vertical to the length direction of the wire guide groove, and the second wedge-shaped plate 2.2 is provided with a guide hole 2.5 matched with the guide post 2.4. The first wedge-shaped plate 2.1 and the second wedge-shaped plate 2.2 clamp the wires, are inserted into the guide holes 2.5 through the guide posts 2.4, and then penetrate through the wire clamp body.

Foretell support 3 includes buffer holder 3.1, and wherein buffer holder 3.1 is including buffer cylinder body 3.11, and the coaxial buffer rod 3.12 that is provided with in the buffer cylinder body 3.11, buffer cylinder body 3.11 is stretched out to buffer rod 3.12's one end and is fixed mutually with arm-tie 3.2, and buffer rod 3.12's the other end is provided with compact heap 3.14, and buffer rod 3.12 outside cover is equipped with pressure spring 3.13, pressure spring 3.13's one end offsets with compact heap 3.14, buffer cylinder body 3.11's lower extreme is provided with anticreep ring 3.15, and pressure spring 3.13's the other end offsets with anticreep ring 3.15.

The two sides of the wire clamp body are symmetrically provided with the fixed shafts 1.1, one end of the pull plate 3.2 is provided with the connecting hole 3.16, the pull plate 3.2 is rotatably sleeved on the outer side of the fixed shaft 1.1 through the connecting hole 3.16, so that one end of the pull plate 3.2 is in rotating fit with the wire clamp body, the other end of the pull plate 3.2 is connected with one end of the buffer frame 3.1, and the other end of the buffer frame 3.1 is hinged with the rotating frame 3.3. Optionally, two arm-tie 3.2 all are connected with buffer rack 3.1, and rotating turret 3.3 includes rotor plate 3.31, and buffer rack 3.1's the other end is articulated mutually with the one end that corresponds rotor plate 3.31, and bolted connection is passed through to two rotor plate 3.31's the other end. In a further alternative embodiment, the other ends of the two pulling plates 3.2 are both connected with one end of the same buffer frame 3.1, and then the buffer frame 3.1 is hinged with the rotating frame 3.3.

Foretell wire anchor clamps 2's upper end is equipped with fastener body matched with anticreep piece 2.6, and first wedge 2.1 and second wedge 2.2's upper end all is provided with semicircular anticreep piece 2.6 promptly, and the anticreep piece 2.6 that sets up can carry out the secondary protection, avoids the pulling force behind exceeding standard wire anchor clamps 2 to strut the fastener body slippage. The outside of the wire clamp body is provided with the reinforcing ribs 4, and the supporting strength of the wire clamp body can be effectively improved through the arrangement of the reinforcing ribs 4.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a reliably press from both sides strain clamp of tight cable, includes that support and cross-section are the fastener body of C shape, fastener body and support normal running fit, this internal wedge-shaped wire anchor clamps that can dismantle of fastener, its characterized in that, the support include the buffering frame, the both sides of fastener body all are provided with the arm-tie, the one end and the fastener body normal running fit of arm-tie, the other end of arm-tie is connected with the one end of buffering frame, the other end of buffering frame articulate and have the rotating turret.

2. The strain clamp of claim 1, wherein the clamp body is symmetrically provided with a fixing shaft at both sides, one end of the pulling plate is provided with a connecting hole, and the pulling plate is rotatably sleeved on the outer side of the fixing shaft through the connecting hole.

3. The strain clamp for reliably clamping the cable according to claim 1, wherein the buffer frame comprises a buffer cylinder body, a buffer rod is coaxially arranged in the buffer cylinder body, one end of the buffer rod extends out of the buffer cylinder body and is fixed with the pull plate, a compression block is arranged at the other end of the buffer rod, a compression spring is sleeved outside the buffer rod, one end of the compression spring abuts against the compression block, an anti-falling ring is arranged at the lower end of the buffer cylinder body, and the other end of the compression spring abuts against the anti-falling ring.

4. The strain clamp of claim 1, wherein the two pulling plates are connected to a buffer frame, the rotating frame comprises a rotating plate, the other end of the buffer frame is hinged to one end of the corresponding rotating plate, and the other ends of the two rotating plates are connected through a bolt.

5. The strain clamp of claim 1, wherein the opposite ends of the two pulling plates are connected to one end of the same buffer frame.

6. The strain clamp of claim 1, wherein the wire clamp has an anti-slip member at an upper end thereof for engaging with the clamp body.

7. The strain clamp of claim 1, wherein the wire clamp comprises a first wedge plate and a second wedge plate, the first wedge plate and the second wedge plate are both provided with wire grooves, the wire grooves are provided with a plurality of pressing ribs, and the pressing ribs on the first wedge plate are staggered with the pressing ribs on the second wedge plate.

8. The strain clamp of claim 7, wherein the first wedge plate has guide posts disposed on an outer side thereof perpendicular to a length direction of the wire guide, and the second wedge plate has guide holes for the guide posts.

9. The strain clamp of claim 1, wherein the clamp body has a reinforcing rib on the outside.