CN212808383U

CN212808383U - Bridge clamp

Info

Publication number: CN212808383U
Application number: CN202022297718.5U
Authority: CN
Inventors: 翟文斌; 张伟龙; 白世杰
Original assignee: Henan Baolongyuan Testing Technology Co ltd
Current assignee: Henan Baolongyuan Testing Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-03-26
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a high technology specialization service area discloses an electric bridge anchor clamps, it includes long cushion cap, be provided with a pair of voltage anchor clamps and a pair of current anchor clamps along its long direction on the long cushion cap, a pair of current anchor clamps are located between a pair of voltage anchor clamps, still be provided with the base on the long cushion cap, the base is close to the one end of long cushion cap, it has "Z" type handle to articulate on the base, the bend that "Z" type handle is close to the base articulates there is the connecting rod, the other end of connecting rod articulates there is the gliding connecting piece of driving voltage anchor clamps, connecting piece driven voltage anchor clamps are close to the base. The utility model has the advantages that: after the cable is clamped by the voltage clamp, the handle is pulled to enable the voltage clamp at one end to be far away from the voltage clamp at the other end, so that the cable is tightened, and the operation is convenient and quick.

Description

Bridge clamp

Technical Field

The utility model relates to a high technology specialization service area, especially an electric bridge anchor clamps.

Background

In an electric power system, the section of a high-voltage cable conductor and an extra-high-voltage cable conductor is overlarge, the current-carrying capacity is also very high, the direct-current resistance of the cable conductor needs to be accurately measured before the cable conductor is used, measuring equipment is a bridge, a four-terminal wiring method is adopted when the bridge measures the conductor, namely two groups of current clamps are clamped at two ends of the conductor, two groups of voltage clamps are clamped on a split conductor between the two groups of current clamps, constant current is applied to the conductor through the current clamps, the voltage value of the conductor within one meter or other lengths is collected through the voltage clamps to calculate the unit resistance of the conductor, and the two groups of voltage clamps can repeatedly measure within different lengths to verify the unit resistance value.

Chinese patent CN206573628U discloses an electrical bridge clamp for measuring the resistance of a conductor, comprising: the electrode clamp comprises an insulating substrate, a first electrode clamp, a second electrode clamp, a third electrode clamp, a fourth electrode clamp and a first lead screw; a fixed supporting block is fixedly arranged in the middle of the surface of the insulating substrate and divides the insulating substrate into a first area and a second area; the first electrode clamp and the fourth electrode clamp are respectively and fixedly arranged at two ends of the insulating substrate, the first lead screw is rotatably arranged on the first area and the second area in a penetrating manner, and the thread directions of the first lead screw and the second lead screw are opposite; the second electrode clamp and the third electrode clamp are respectively arranged on the insulating base plates of the first area and the second area in a sliding mode and are connected with the first screw rod in a rotating mode, the second electrode clamp and the third electrode clamp can be easily driven to move by rotating the first screw rod so as to achieve an accurate position, the operation is simple, the mode is high in precision compared with a manual moving mode, and the error of a subsequent test result is small. But the operation mode of rotating the first screw rod to tighten the cable is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric bridge anchor clamps to solve the inconvenient problem of operation mode of current electric bridge anchor clamps tight cable.

The purpose of the utility model is realized through the following technical scheme: the bridge clamp comprises a long bearing platform, wherein a pair of voltage clamps and a pair of current clamps are arranged on the long bearing platform along the length direction of the long bearing platform, the pair of current clamps are positioned between the pair of voltage clamps, a base is further arranged on the long bearing platform, the base is close to one end of the long bearing platform, a Z-shaped handle is hinged to the base, the Z-shaped handle is close to the bent part of the base, a connecting rod is hinged to the other end of the connecting rod, a connecting piece for driving the voltage clamps to slide is hinged to the other end of the connecting rod, and the voltage clamps driven by the connecting piece are close to the base.

Preferably, a guide block is arranged between the voltage clamp and the base, the connecting piece is a connecting bolt, the connecting bolt penetrates through the guide block and is screwed into the voltage clamp, and the head of the connecting bolt is hinged to the connecting rod.

Preferably, a guide block is arranged between the voltage clamp and the base, the connecting piece includes a connecting bolt, a spring and a sleeve, the connecting bolt penetrates through the guide block and is screwed into the voltage clamp, the head of the connecting bolt is located in the inner cavity of the sleeve, a limiting table is arranged at one end of the inner cavity of the sleeve along the circumferential direction of the inner cavity, the spring is sleeved on the connecting bolt, two ends of the spring respectively abut against the head of the connecting bolt and the limiting table, and one end of the sleeve, which is far away from the limiting table, is hinged to the connecting rod.

Preferably, the current clamp and the voltage clamp both include a substrate and a pair of chucks, the substrate is mounted on the long bearing platform, a mounting groove is formed in the substrate, a bidirectional screw rod is rotatably mounted in the mounting groove along the short direction of the long bearing platform, a rotating handle is arranged at one end of the bidirectional screw rod, the rotating handle is located outside the mounting groove, first threaded through holes with opposite rotation directions are respectively formed in the pair of chucks, and two ends of the bidirectional screw rod are respectively screwed into the corresponding chucks.

Preferably, the long bearing platform is provided with a pair of L-shaped sliding grooves along the length direction, the L-shaped sliding grooves are oppositely arranged, the bottom of the base plate is provided with a pair of opposite L-shaped sliding blocks, and the L-shaped sliding blocks are slidably mounted in the corresponding L-shaped sliding grooves.

Preferably, a second threaded through hole is formed in the base plate, a fastening bolt is screwed into the second threaded through hole, and a screw rod of the fastening bolt abuts against the bottom of the L-shaped sliding groove.

Compared with the prior art, the beneficial effects of the utility model are that: after the cable is clamped by the voltage clamp, the handle is pulled to enable the voltage clamp at one end to be far away from the voltage clamp at the other end, so that the cable is tightened, and the operation is convenient and quick.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at B;

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 1;

in the figure, 1-long bearing platform, 2-voltage clamp, 3-current clamp, 4-base, 5- 'Z' -shaped handle, 6-connecting rod, 7-connecting bolt, 8-guide block, 9-spring, 10-sleeve, 11-limit platform, 12-base plate, 13-chuck, 14-mounting groove, 15-bidirectional screw rod, 16-rotating handle, 17- 'L' -shaped sliding groove, 18- 'L' -shaped sliding block, 19-fastening bolt and 20-graduated scale.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

As shown in FIGS. 1-3, a bridge clamp comprises a long bearing platform 1, a pair of voltage clamps 2 and a pair of current clamps 3 are arranged on the long bearing platform 1 along the length direction thereof, the pair of current clamps 3 are positioned between the pair of voltage clamps 2, the current clamps 3 are fixed on the long bearing platform 1, a graduated scale 20 is arranged between the current clamps 3, one voltage clamp 2 is fixed on the long bearing platform 1, the other voltage clamp is slidably mounted on the long bearing platform 1, a base 4 is also arranged on the long bearing platform 1, the slidably mounted voltage clamp 2 is positioned between the fixed voltage clamp 2 and the base 4, a Z-shaped handle 5 is hinged on the base 4, a connecting rod 6 is hinged on the bending part of the Z-shaped handle 5 close to the base 4, a sleeve 10 is hinged on the other end of the connecting rod 6, a limit platform 11 is arranged on one end of the inner cavity of the sleeve 10 far away from the connecting rod 6 along the circumferential direction thereof, the head, two ends of a spring 9 sleeved on the connecting bolt 7 are respectively abutted against the head of the connecting bolt 7 and the limiting table 11, a guide block 8 is arranged between the voltage clamp 2 and the base 4, and the bolt penetrates through the guide block 8 and is screwed into the voltage clamp 2.

The working process of the utility model is as follows: pulling the Z-shaped handle to pull the sliding voltage clamp 2 to the direction far away from the fixed voltage clamp 2, and straightening the cable clamped on the voltage clamp 2. And the utility model discloses the gliding theory of operation of drive voltage anchor clamps 2 is the same with plug-type active grab's theory of operation, and it structurally does with plug-type active grab's difference the utility model discloses a push rod is telescopic, when tightening the cable, spring 9 is the cable straighten and provides sufficient locking force, and has avoided the cable to bear too big pulling force and has leaded to the cable to break or produce serious deformation (for the purpose of realizing the straight cable that tightens alone, the utility model discloses also can remove sleeve 10 and spring 9 and directly articulate connecting bolt 7 on connecting rod 6).

In this embodiment, as shown in fig. 1 to 3, each of the current clamp 3 and the voltage clamp 2 includes a substrate 12 and a pair of chucks 13, the substrate 12 is mounted on the long platform 1, a mounting groove 14 is formed on the substrate 12, a bidirectional screw 15 is rotatably mounted in the mounting groove 14 along a short direction of the long platform 1, one end of the bidirectional screw 15 is provided with a rotating handle 16, the rotating handle 16 is located outside the mounting groove 14, the pair of chucks 13 are respectively provided with first threaded through holes with opposite rotation directions, two ends of the bidirectional screw 15 are respectively screwed into the corresponding chucks 13, the structures of the current clamp 3 and the voltage clamp 2 are the same as those of the prior art, the chucks 13 are moved close to or away from each other by rotating the rotating handle 16 to clamp or unlock the cable, and the clamping is firm and simple in structure.

In the present embodiment, as shown in fig. 1-3, a pair of "L" type sliding grooves 17 are formed on the long platform 1 along the length direction thereof, the "L" type sliding grooves 17 are oppositely arranged, a pair of opposite "L" type sliding blocks 18 are arranged at the bottom of the base plate 12, the "L" type sliding blocks 18 are slidably mounted in the corresponding "L" type sliding grooves 17, a second threaded through hole is formed on the base plate 12, a fastening bolt 19 is screwed into the second threaded through hole, a lead screw of the fastening bolt 19 abuts against the bottom of the "L" type sliding groove 17, the fastening bolt 19 can be unscrewed to slidably adjust the fixture, the fixture can be fixed at a designated position on the long platform 1 by screwing the fastening bolt 19, and the structure is simple and convenient to adjust.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a bridge anchor clamps, includes long cushion cap, be provided with a pair of voltage anchor clamps and a pair of current anchor clamps along its long direction on the long cushion cap, a pair of the current anchor clamps are located a pair of between the voltage anchor clamps, its characterized in that: still be provided with the base on the long cushion cap, the base is close to the one end of long cushion cap, it has "Z" type handle to articulate on the base, "Z" type handle is close to the bend of base articulates there is the connecting rod, the other end of connecting rod articulates there is the drive the gliding connecting piece of voltage anchor clamps, the connecting piece driven voltage anchor clamps are close to the base.

2. A bridge clamp as claimed in claim 1, wherein: a guide block is arranged between the voltage clamp and the base, the connecting piece is a connecting bolt, the connecting bolt penetrates through the guide block and is screwed into the voltage clamp, and the head of the bolt is hinged to the connecting rod.

3. A bridge clamp as claimed in claim 1, wherein: the connecting piece comprises a connecting bolt, a spring and a sleeve, the connecting bolt penetrates through the guide block and is screwed into the voltage clamp, the head of the connecting bolt is located in the inner cavity of the sleeve, a limiting table is arranged at one end of the inner cavity of the sleeve along the circumferential direction of the inner cavity of the sleeve, the spring is sleeved on the connecting bolt, two ends of the spring respectively abut against the head of the connecting bolt and the limiting table, and one end, away from the limiting table, of the sleeve is hinged to the connecting rod.

4. A bridge clamp according to any of claims 1-3, wherein: the current clamp and the voltage clamp respectively comprise a substrate and a pair of chucks, the substrate is installed on the long bearing platform, an installation groove is formed in the substrate, a bidirectional screw rod is installed in the installation groove in a rotating mode along the short direction of the long bearing platform, a rotating handle is arranged at one end of the bidirectional screw rod and located outside the installation groove, first threaded through holes with opposite rotating directions are formed in the pair of chucks respectively, and two ends of the bidirectional screw rod are screwed into the corresponding chucks respectively.

5. The bridge clamp of claim 4, wherein: the long bearing platform is provided with a pair of L-shaped sliding grooves along the long direction, the L-shaped sliding grooves are oppositely arranged, the bottom of the base plate is provided with a pair of opposite L-shaped sliding blocks, and the L-shaped sliding blocks are slidably arranged in the corresponding L-shaped sliding grooves.

6. The bridge clamp of claim 5, wherein: and a second threaded through hole is formed in the substrate, a fastening bolt is screwed in the second threaded through hole, and a screw rod of the fastening bolt abuts against the bottom of the L-shaped sliding groove.