阅读说明：本技术 一种快速调节锁紧式测试钳 (Quick adjustment locking type test clamp ) 是由 申峻 张霖 杨超 李诗勇 张丽娟 王凯 薛静 尹学兵 张莎莉 刘栖 于 2019-11-29 设计创作，主要内容包括：本发明公开了一种快速调节锁紧式测试钳,包括钳体和两折弯臂,两折弯臂拐角处对称铰接在钳体前端,两折弯臂两外端均对称固定连接有两圆柱夹持钳片,两折弯臂另一端均设置有U型开口,两圆柱夹持钳片间对应位置设置有弧形钳槽,两圆柱夹持钳片两外端对称铰接有两平面夹持钳片,两U型开口铰接在推拉柄外端上,推拉柄另一端活动插入到钳体内,推拉柄一侧设置有齿条,与齿条配合的齿轮固定连接在电机的电机轴上,电机固定连接在钳体上。本发明通过圆柱形夹持钳片和平面夹持钳片实现圆柱形导体和平面导体夹持,齿轮齿条带动,夹持稳定可靠,提高工作效率、工作质量,降低作业安全风险。(The invention discloses a quick-adjustment locking type test clamp which comprises a clamp body and two bending arms, wherein corners of the two bending arms are symmetrically hinged to the front end of the clamp body, two outer ends of the two bending arms are symmetrically and fixedly connected with two cylindrical clamping clamp pieces, the other ends of the two bending arms are respectively provided with a U-shaped opening, an arc clamp groove is formed in a corresponding position between the two cylindrical clamping clamp pieces, two outer ends of the two cylindrical clamping clamp pieces are symmetrically hinged with two plane clamping clamp pieces, the two U-shaped openings are hinged to the outer end of a push-pull handle, the other end of the push-pull handle is movably inserted into the clamp body, a rack is arranged on one side of the push-pull handle, a gear matched with the rack is fixedly connected to a motor shaft of a motor, and the motor. According to the invention, the cylindrical conductor and the plane conductor are clamped by the cylindrical clamping sheet and the plane clamping sheet, and the clamping is stable and reliable by the driving of the gear and the rack, so that the working efficiency and the working quality are improved, and the operation safety risk is reduced.)

1. The utility model provides a quick adjustment locking type test pincers which characterized in that: the clamp comprises a clamp body (1) and two bending arms (2), the corners of the two bending arms (2) are symmetrically hinged to the front end of the clamp body (1), two outer ends of the two bending arms (2) are symmetrically and fixedly connected with two conductive cylindrical clamping clamp pieces (3), the other ends of the two bending arms (2) are provided with U-shaped openings (5), arc clamp grooves are formed in corresponding positions between the two cylindrical clamping clamp pieces (3), two outer ends of the two cylindrical clamping clamp pieces (3) are symmetrically hinged with two conductive plane clamping clamp pieces (4), the two U-shaped openings (5) are hinged to the outer end of a push-pull handle (6), the other end of the push-pull handle (6) is movably inserted into the clamp body (1), one side of the push-pull handle (6) is provided with a rack (7), a gear (8) matched with the rack (7) is fixedly connected to a motor shaft of a motor (9), and the motor (9) is fixedly connected to the clamp body (1).

2. The quick adjustment locking test clamp of claim 1, wherein: the two plane clamping jaw pieces (4) are hinged on two hinged shafts, the two hinged shafts are respectively and fixedly connected with the two cylindrical clamping jaw pieces (3), and the plane clamping jaw pieces are hinged between the hinged shafts to keep transition fit.

3. The quick adjustment locking test clamp of claim 1, wherein: the tail of the clamp body (1) is inserted with a rechargeable battery (10), and the rechargeable battery (10) is electrically connected to the motor (9).

4. The quick adjustment locking test clamp of claim 3, wherein: one side of the clamp body (1) is provided with a power switch (11), and the power switch (11) is connected between the charging storage battery (10) and the motor (9).

Technical Field

The invention relates to a quick adjustment locking type test clamp, and belongs to the technical field of test clamps.

Background

At present, a power grid covers a lot of substations with voltage class of 110 kilovolts or more, and a large amount of pre-test scheduled inspection work of substation equipment with voltage class of 110 kilovolts or more is required to be completed by a high-voltage test professional of a power supply bureau every year. In the high-voltage pre-test work of the field power transformation equipment, the working quality of testing the direct-current resistance of the transformer and the contact resistance of the breaker directly influences the quality of the test result and the test progress. According to the knowledge, in the process of testing the direct-current resistance of the transformer and the contact resistance of the breaker, the test personnel often make misjudgment due to poor contact of the test clamp, the quality of the test result is not high, and the construction period is delayed due to repeated tests. Because the problems of heating, discharging and the like caused by poor contact in the test are likely to cause accidents such as damage of test equipment, personal injury and the like.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a quick adjustment locking formula test pincers to solve the problem that exists among the prior art.

The technical scheme adopted by the invention is as follows: the utility model provides a quick adjustment locking formula test tongs, including the pincers body and two bending arms, two bending arm corner symmetries articulate at pincers body front end, two bending arm two outer ends equal symmetry fixedly connected with electrically conductive two cylinder centre gripping pincers pieces, the two bending arm other ends all are provided with U type opening, it is provided with the arc pincers groove to correspond the position between two cylinder centre gripping pincers pieces, two outer end symmetries of two cylinder centre gripping pincers pieces articulate there is electrically conductive two plane centre gripping pincers piece, two U type openings articulate on the push-and-pull handle outer end, the internal of pincers is inserted in push-and-pull handle other end activity, push-and-pull handle one side is provided with the rack, with rack complex gear fixed connection on the motor shaft of motor, motor fixed connection is on the pincers body.

Preferably, the two planar clamping jaw pieces are hinged to two hinge shafts, the two hinge shafts are respectively and fixedly connected to the two cylindrical clamping jaw pieces, and the planar clamping jaw pieces are hinged between the hinge shafts to keep transition fit.

Preferably, the tail part of the clamp body is inserted with a rechargeable battery, and the rechargeable battery is electrically connected to the motor.

Preferably, a power switch is disposed on one side of the clamp body, and the power switch is connected between the rechargeable battery and the motor.

The invention has the beneficial effects that: compared with the prior art, the clamping device has the advantages that the cylindrical conductor and the plane conductor are clamped through the cylindrical clamping sheet and the plane clamping sheet, the gear and the rack are driven, the clamping is stable and reliable, the equipment operation is safe, reliable, light and flexible, the contact of the large-current testing clamp in the electrical test is more reliable, the working efficiency and the working quality are improved, and the operation safety risk is reduced. The supervision level of the insulation technology of the power grid equipment is effectively enhanced, and the power supply reliability of the power grid is improved.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic sectional view A-A of FIG. 2;

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

fig. 5 is a schematic structural view of a bent arm joint.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.