CN219434913U

CN219434913U - Bridge clamp with fastening device

Info

Publication number: CN219434913U
Application number: CN202320627885.2U
Authority: CN
Inventors: 彭敏; 郝良福; 彭刚
Original assignee: Wuhan Fuyunlai Technology Co ltd
Current assignee: Wuhan Fuyunlai Technology Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-07-28
Anticipated expiration: 2033-03-28

Abstract

The utility model discloses a bridge clamp with a fastening device, which comprises a base, a current clamp arranged at two ends of the base, and further comprises: the first voltage clamp and the second voltage clamp are respectively arranged at two ends of the base, provided with the current clamps, and are arranged at the outer sides of the two current clamps, the first voltage clamp is fixedly connected to the base, the second voltage clamp is in sliding connection with the base, and the second voltage clamp is provided with a first fastening bolt; the first fastening mechanism is fixedly arranged on one side of the first voltage clamp, which is opposite to the current clamp; the second fastening mechanism is fixedly arranged on one side of the second voltage clamp, which is opposite to the current clamp; through set up fastener on two voltage anchor clamps, one end fixed cable, one end twines the fastening with the cable, and rethread voltage anchor clamps electrode clamp centre gripping detects, avoids the electrode clamp direct clamping of voltage anchor clamps to draw sharp cable, damages bridge anchor clamps, also can be with the fine straightening and fastening of cable simultaneously, improves measurement accuracy.

Description

Bridge clamp with fastening device

Technical Field

The utility model relates to the field of bridge clamps, in particular to a bridge clamp with a fastening device.

Background

In the power system, the section of a high-voltage and ultrahigh-voltage cable conductor is too large, the current-carrying capacity is also very high, the cable conductor needs to accurately measure the direct-current resistance before use, the measuring equipment is an electric bridge, a four-terminal wiring method measuring mode is adopted when the electric 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 in 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 be repeatedly measured in different lengths to verify the unit resistance value of the conductor;

the existing bridge clamp is provided with two voltage clamps, the cable to be tested is clamped through the two voltage clamps, and the cable to be tested is stretched and stretched through a screw or manually pulled to the voltage clamps, so that more accurate measurement is achieved;

the Chinese utility model patent application number is as follows: CN202022297718.5 discloses a bridge clamp, it includes long cushion cap, is provided with a pair of voltage anchor clamps and a pair of current anchor clamps along its length direction on the long cushion cap, and a pair of current anchor clamps are located between a pair of voltage anchor clamps, still are provided with the base on the long cushion cap, and the base is close to the one end of long cushion cap, articulates on the base has "Z" type handle, and the bending part that "Z" type handle is close to the base articulates there is the connecting rod, and the other end of connecting rod articulates there is the gliding connecting piece of drive voltage anchor clamps, and the voltage anchor clamps of connecting piece drive are close to the base. The beneficial effects are that: after the cable is clamped by the voltage clamp, the voltage clamp at one end is pulled 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;

the bridge clamp disclosed by the above pulls the voltage clamp through spring reset to tighten the cable, when the length of the cable is too long, the spring cannot well straighten the cable, so that the final test result can be influenced, in addition, the cable to be tested is straightened through pulling the voltage clamp, when the cable is too thick or works for a long time, the electrode clamp of the voltage clamp can be bent or damaged, and the service life of the bridge clamp is reduced.

Disclosure of Invention

In view of the shortcomings of the prior art, the present utility model provides a bridge clip with a fastening device, which aims to solve the above problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a bridge anchor clamps with fastener, includes the base the both ends of base respectively are equipped with a current clamp, still include:

the voltage clamp comprises a first voltage clamp and a second voltage clamp, the first voltage clamp and the second voltage clamp are respectively arranged at two ends of the base, which are provided with current clamps, and are arranged at the outer sides of the two current clamps, the first voltage clamp is fixedly connected to the base, the second voltage clamp is in sliding connection with the base, and the second voltage clamp is provided with a first fastening bolt;

the first fastening mechanism is fixedly arranged on one side of the first voltage clamp, which is opposite to the current clamp;

the second fastening mechanism is fixedly arranged on one side of the second voltage clamp, which is opposite to the current clamp;

the elastic device is movably arranged in the voltage clamp and drives the voltage clamp to clamp the cable.

Preferably, the first fastening mechanism comprises a fastening seat, the fastening seat is fixed on the base, the height of the fastening seat is equal to the height of the clamping center of the voltage clamp, a clamping plate is arranged above the fastening seat, and the clamping plate is fixed on the fastening seat through a second fastening bolt.

Preferably, the second fastening mechanism comprises a support frame, the support frame is fixed on the second voltage clamp, fixed pulleys parallel to the voltage clamp are arranged on the support frame, two ends of each fixed pulley are movably connected to two sides of the support frame, through holes are formed in the fixed pulleys, and a third fastening bolt corresponding to one end of each fixed pulley is arranged on one side of the support frame.

Preferably, the fixed pulley is far away from one end of the third fastening bolt, penetrates through and extends to the outer side of the support frame, and is provided with a rotary handle at the tail end of the fixed pulley.

Preferably, the voltage clamp comprises a clamp electrode groove, two ends in the electrode groove are respectively provided with an electrode clamp, the elastic device is arranged in the electrode groove, and the elastic device drives the electrode clamps at the two ends to clamp the cable inwards.

Preferably, the elastic device comprises a guide rail, the guide rail passes through the two electrode clamps and is in sliding connection with the electrode clamps, two ends of the guide rail are fixed on two sides of the electrode groove, springs are arranged on two ends of the guide rail in the electrode groove and are arranged between the side wall of the electrode groove and the electrode clamps, and the springs drive the two electrode clamps to clamp inwards along the guide rail.

Preferably, the surface of the base is provided with a scale parallel to the base.

Compared with the prior art, the utility model has the following beneficial effects:

according to the bridge clamp with the fastening device, the fastening devices are arranged on the two voltage clamps, the cable is fixed at one end, the cable is wound and fastened at the other end, then the voltage clamp electrode clamps are used for clamping and detecting, the electrode clamps of the voltage clamps are prevented from directly clamping and pulling the linear cable, the electrode clamps of the voltage clamps are bent or damaged when the cable is too thick or works for a long time, the service life of the bridge clamp is shortened, the cable can be well straightened and fastened, the measuring precision is improved, and therefore the practicability of the bridge clamp is improved.

Drawings

FIG. 1 is a schematic view of the whole structure of a bridge clip with a fastening device according to the present utility model;

FIG. 2 is an enlarged view of a portion A of a bridge clip with a fastening device according to the present utility model;

FIG. 3 is an enlarged view of a portion B of a bridge clip with a fastening device according to the present utility model;

fig. 4 is a partial top view of a bridge clip with a fastening device according to the present utility model.

In the figure: 1. a base; 2. a current clamp; 3. a voltage clamp; 31. a first voltage clamp; 32. a second voltage clamp; 33. a first fastening bolt; 34. a clamp base; 35. an electrode groove; 36. an electrode clip; 4. a first fastening mechanism; 41. a fastening seat; 42. a clamping plate; 43. a second fastening bolt; 5. a second fastening mechanism; 51. a support frame; 52. a fixed pulley; 53. a through hole; 54. a third fastening bolt; 55. rotating the handle; 6. an elastic device; 61. a guide rail; 62. a spring; 7. a ruler.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, in the embodiment of the present application, the following are: the bridge clamp with the fastening device comprises a base 1, two current clamps 2 and two voltage clamps 3 are arranged at two ends of the base 1, the two voltage clamps 3 are arranged on the outer sides of the two current clamps 2, the voltage clamps 3 comprise a first voltage clamp 31 and a second voltage clamp 32, the first voltage clamp 31 is fixed on the base 1, the second voltage clamp 32 is in sliding connection with the base 1, an L-shaped sliding block is arranged on the contact surface of the second voltage clamp 32 and the base 1, a sliding groove is arranged on the base 1 corresponding to the L-shaped sliding block, the second voltage clamp 32 can slide in the sliding groove of the base 1 through the L-shaped sliding block, meanwhile, a first fastening bolt 33 is arranged on the second voltage clamp 32, a scale 7 is arranged on one surface of the base 1, which is provided with the voltage clamp 3, and when the second voltage clamp 32 is moved to a specific position, the second voltage clamp 32 is fixed on the base 1 through the first fastening bolt 33;

one side of the first voltage clamp 31, which is opposite to the current clamp 2, is provided with a first fastening mechanism 4 which is fixed on the first voltage clamp 31 and used for fixing a cable, one side of the second voltage clamp 32, which is opposite to the current clamp 2, is provided with a second fastening mechanism 5 which is fixed on the second voltage clamp 32 and used for fastening the cable, so that the cable is stretched and tightened, the cable is more accurately measured, and an elastic device 6 is arranged in the voltage clamp 3 and used for driving the voltage clamp 3 to clamp and detect the tightened cable, thereby avoiding the direct clamping and stretching of the cable by the voltage clamp 3, and reducing the service life of the bridge clamp because the cable is damaged by the voltage clamp 3 when the cable is too thick or works for a long time.

In another embodiment, referring to fig. 1 to 3, the first fastening mechanism 4 includes a fastening seat 41 and a clamping plate 42, when fastening, one end of a cable is placed on the fastening seat 41, the clamping plate 42 is covered, and the clamping plate 42 and the fastening seat 41 are fixed through the second fastening bolt 43, so that the cable is fixed, the height of the fastening seat 41 corresponds to the center position clamped by the voltage clamp 3, and after the cable is fastened in a stretching manner, the voltage clamp 3 can accurately clamp the cable for detection;

the second fastening mechanism 5 comprises a support frame 51 and a fixed pulley 52, the support frame 51 is fixed on the second voltage clamp 32, two ends of the fixed pulley 52 are inserted at two ends of the support frame 51, the fixed pulley 52 is arranged on the voltage clamp 3 in parallel, a through hole 53 is formed in the fixed pulley 52, a cable is conveniently inserted, one end of the support frame 51, which is inserted with the fixed pulley 52, is provided with a third fastening bolt 54 for fastening the fixed pulley 52, the other end of the fixed pulley 52 passes through and extends out of the support frame 51, and a rotary handle 55 is arranged at the tail end for rotating the fixed pulley 52;

after the second voltage clamp 32 is fixed on the base 1, the cable is fixed through the first fastening mechanism 4, the other end of the cable is inserted into the through hole 53 of the fixed pulley 52 of the second fastening mechanism 5, then the cable is wound and collected through the rotating handle 55 until the cable is stretched to be straightened, the fixed pulley 52 is fastened through the third fastening bolt 54, stretching and straightening of the cable are completed at this time, then the cable clamped and straightened by the voltage clamps 3 at two ends is measured, and the measuring precision is improved.

In another embodiment, referring to fig. 4, the voltage fixture 3 includes a fixture base 34, an electrode slot 35 is disposed on the fixture base 34, two ends of the electrode slot 35 are respectively provided with an electrode clip 36, meanwhile, an elastic device 6 is disposed in the electrode slot 35, the elastic device 6 includes a guide rail 61, the guide rail 61 passes through the two electrode clips 36, so that the electrode clips 36 can slide in the electrode slot 35 through the guide rail 61, two ends of the guide rail 61 are fixed on two sides of the electrode slot 35, a spring 62 is further disposed on the guide rail 61, the spring 62 passes through the guide rail 61 and is disposed at two ends of the guide rail 61, one end is abutted with an inner wall of the electrode slot 35, and the other end is abutted with the electrode clips 36, so that the electrode clips 36 move oppositely under the action of the spring 62 to clamp the cable.

Working principle: the second voltage clamp 32 is moved to a detection distance through the scale 7, is fixed on the base 1 through the first fastening bolt 33, then one end of a cable is fixed on the first fastening mechanism 4, the other end of the cable is inserted into the through hole 53 of the fixed pulley 52 of the second fastening mechanism 5, the fixed pulley 52 is rotated through the rotary handle 55 to collect the cable, the fixed pulley 52 is fixed after the cable is tensioned and straightened, and finally the two electrode clamps 36 of the voltage clamp 3 are separated through the third fastening bolt 54, so that the cable is close to the straightened cable under the action of the spring 62 for measurement, the electrode clamps 36 of the voltage clamp 3 are prevented from directly clamping and straightening the cable, the service life of the bridge clamp is shortened when the cable is too thick or the cable works for a long time, the cable can be well straightened and fastened, the measuring accuracy is improved, and the practicability of the bridge clamp is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge anchor clamps with fastener, includes base (1) the both ends of base (1) are equipped with a current clamp (2) respectively, its characterized in that still includes:

the voltage clamp (3) comprises a first voltage clamp (31) and a second voltage clamp (32), the first voltage clamp and the second voltage clamp are respectively arranged at two ends of the base (1) where the current clamps (2) are arranged, the two ends of the base are arranged outside the two current clamps (2), the first voltage clamp (31) is fixedly connected to the base (1), the second voltage clamp (32) is in sliding connection with the base (1), and a first fastening bolt (33) is arranged on the second voltage clamp (32);

a first fastening mechanism (4) fixedly arranged on one side of the first voltage clamp (31) facing away from the current clamp (2);

a second fastening mechanism (5) fixedly arranged on one side of the second voltage clamp (32) facing away from the current clamp (2);

the elastic device (6) is movably arranged in the voltage clamp (3), and the elastic device (6) drives the voltage clamp (3) to clamp the cable.

2. Bridge clamp with fastening device according to claim 1, characterized in that the first fastening means (4) comprise a fastening seat (41), the fastening seat (41) being fixed on the base (1), the fastening seat (41) being equal in height to the clamping centre of the voltage clamp (3), a clamping plate (42) being arranged above the fastening seat (41), the clamping plate (42) being fixed on the fastening seat (41) by means of a second fastening bolt (43).

3. The bridge fixture with the fastening device according to claim 1, characterized in that the second fastening mechanism (5) comprises a supporting frame (51), the supporting frame (51) is fixed on the second voltage fixture (32), a fixed pulley (52) parallel to the voltage fixture (3) is arranged on the supporting frame (51), two ends of the fixed pulley (52) are movably connected to two sides of the supporting frame (51), through holes (53) are formed in the fixed pulley (52), and a third fastening bolt (54) corresponding to one end of the fixed pulley (52) is arranged on one side of the supporting frame (51).

4. A bridge clip with fastening means according to claim 3, characterized in that the end of the fixed pulley (52) remote from the third fastening bolt (54) passes through and extends outside the support frame (51) and is provided with a swivel handle (55) at its end.

5. The bridge clamp with the fastening device according to claim 1, wherein the voltage clamp (3) comprises a clamp base (34), an electrode groove (35) is formed in the clamp base (34), an electrode clamp (36) is respectively arranged at two ends in the electrode groove (35), the elastic device (6) is arranged in the electrode groove (35), and the elastic device (6) drives the electrode clamps (36) at two ends to clamp a cable inwards.

6. The bridge clamp with fastening device according to claim 5, characterized in that the elastic means (6) comprises a guide rail (61), the guide rail (61) penetrates through the two electrode clamps (36) and is in sliding connection with the electrode clamps (36), two ends of the guide rail are fixed on two sides of the electrode groove (35), the guide rail (61) is provided with springs (62) at two ends in the electrode groove (35), the springs (62) are arranged between the side wall of the electrode groove (35) and the electrode clamps (36), and the springs (62) drive the two electrode clamps (36) to clamp inwards along the guide rail (61).

7. Bridge clip with fastening device according to claim 1, characterized in that the base (1) is provided with a scale (7) on its surface parallel to the base (1).