阅读说明：本技术 一种高压试验自发热试验夹及其使用方法 (Self-heating test clamp for high-voltage test and use method thereof ) 是由 陆禹初 刘鹏 盛兴隆 刘佳 郭举富 刘栖 高惠 胡凯强 甄玲玉 晏青 李朝举 于 2019-12-05 设计创作，主要内容包括：本发明公开了一种高压试验自发热试验夹,属于电路测试装置技术领域；它包括两个钳臂；两个钳臂的中部通过铰链相铰接；在钳臂的一端开有安装孔；发热体设置在安装孔内；发热体通过导线与电源接头相连；在钳臂上设置发热体的一侧安装有导线连接柱；在钳臂上未设置有发热体的一端安装有绝缘把手；本发明由利用发热体和钳臂的良好导热性,将被测件表面冰层快速融化,使得高压试验能够顺利进行,该高压试验自发热试验夹具有可靠性高,体积小,重量轻,操作简便的特征,同时也大大降低了工作人员的劳动强度,提高了工作效率,提高了企业的经济效益,也有效避免了对环境的破坏。(The invention discloses a self-heating test clamp for a high-voltage test, belonging to the technical field of circuit testing devices; it comprises two clamp arms; the middle parts of the two forceps arms are hinged through a hinge; one end of the clamp arm is provided with a mounting hole; the heating body is arranged in the mounting hole; the heating body is connected with the power supply connector through a lead; a lead connecting column is arranged on one side of the heating body arranged on the forceps arm; an insulating handle is arranged at one end of the clamp arm which is not provided with the heating element; the self-heating test fixture for the high-voltage test has the characteristics of high reliability, small volume, light weight and simplicity and convenience in operation, greatly reduces the labor intensity of workers, improves the working efficiency, improves the economic benefit of enterprises and also effectively avoids the damage to the environment.)

1. A self-heating test clamp for a high-voltage test comprises two clamp arms (1); the middle parts of the two forceps arms (1) are hinged through hinges; the method is characterized in that: one end of the clamp arm (1) is provided with a mounting hole (11); the heating body (2) is arranged in the mounting hole (11); the heating body (2) is connected with a power supply connector (7) through a lead; a lead connecting column (3) is arranged on one side of the heating body (2) arranged on the forceps arm (1); an insulating handle (4) is arranged at one end of the forceps arm (1) which is not provided with the heating element (2).

2. The self-heating test clamp for the high-voltage test according to claim 1, characterized in that: the insulating handle (4) is externally sleeved with a rubber sheath (5).

3. The self-heating test clamp for the high-voltage test according to claim 1, characterized in that: a return spring (6) is also arranged between the two forceps arms (1).

4. The self-heating test clamp for the high-voltage test according to claim 1, characterized in that: a switch (8) is also arranged on the lead between the heating body (2) and the power supply connector (7).

5. The self-heating test clamp for the high-voltage test according to claim 1, characterized in that: the tong arms (1) are made of metal with electric and heat conduction, and triangular teeth (12) which are meshed with each other are arranged on two end faces, opposite to one end, of each tong arm (1) provided with the heating body (2).

6. The high-pressure test self-heating test clamp according to claim 1 or 5, characterized in that: the lead connecting column (3) is welded and installed on the back surfaces of the opposite end surfaces of the two clamp arms (1).

7. The use method of the high-voltage test self-heating test clamp according to any one of claims 1 to 7, is characterized in that: the method comprises the following steps:

the method comprises the following steps: an operator holds the insulating handle (4) wrapped by the rubber sheath (5), pulls the clamp arm (1) open, and enables two opposite end faces of one end of the clamp arm (1) provided with the heating body (2) to clamp an ice layer on a piece to be measured;

step two: the power supply connector (7) is connected with a power supply, and a switch (8) is opened;

step three: the body to be heated (2) is electrified to heat, so that the heat is transferred to the clamp arm (1) to melt the ice layer at the clamped part of the clamp arm (1);

step four: pressing the insulating handle (4) to clamp the clamp arm (1) on the surface of the piece to be tested;

step five: and closing the switch, disconnecting the power connector (7) from the power supply, and connecting the high-voltage test lead with the lead connecting column (8) to perform a high-voltage test.

Technical Field

The invention relates to the technical field of circuit testing devices, in particular to a high-voltage test self-heating test clamp used for coping with line icing in outdoor detection and a using method thereof.

Background

In power supply system, the safety of circuit is vital, consequently, need carry out high voltage test such as insulation resistance, direct current resistance to power supply line and equipment, need use the electrically conductive test to press from both sides when experimental firmly to be held by survey, and outdoor temperature is low in winter, and the weather of congealing often can appear in the south especially, can freeze thick ice blanket on the survey piece, leads to experimental difficult going on.

Aiming at the problems in the existing high-voltage test, the invention aims to provide a manufacturing method and a device of a self-heating test clamp for the high-voltage test, which have the advantages of simple structure, convenience in operation, small volume, light weight and high reliability.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the self-heating test clamp for the high-voltage test and the use method thereof are provided to solve the problem that the test cannot be effectively carried out due to the thickness of the icing layer on a tested piece when the high-voltage test of an outdoor power supply line is carried out in winter.

In order to solve the problems, the invention provides the following technical scheme:

a self-heating test clamp for a high-voltage test comprises two clamp arms; the middle parts of the two forceps arms are hinged through a hinge; one end of the clamp arm is provided with a mounting hole; the heating body is arranged in the mounting hole; the heating body is connected with the power supply connector through a lead; a lead connecting column is arranged on one side of the heating body arranged on the forceps arm; an insulating handle is arranged at one end of the forceps arm which is not provided with the heating element.

Preferably, the insulating handle is externally sleeved with a rubber sheath.

Preferably, a return spring is further mounted between the two jawarms.

Preferably, a switch is further disposed on the wire between the heating element and the power connector.

Preferably, the two tong arms are made of metal with electric conduction and heat conduction, and triangular teeth which are meshed with each other are arranged on two end faces, opposite to one end, of each tong arm, which is provided with the heating body.

Furthermore, the lead connecting column is welded and installed on the back surfaces of the opposite end surfaces of the two clamp arms.

The invention also provides a use method of the self-heating test clamp for the high-voltage test, which comprises the following steps:

the method comprises the following steps: an operator holds the insulating handle wrapped by the rubber sheath, pulls the clamp arm open, and enables the two opposite end faces of one end of the clamp arm provided with the heating body to clamp the ice layer on the piece to be tested;

step two: connecting the power supply connector with a power supply, and opening a switch;

step three: the body to be heated is electrified to heat, so that the heat is transferred to the clamp arms to melt the ice layer at the clamped part of the clamp arms;

step four: pressing the insulating handle to clamp the clamp arm on the surface of the piece to be tested;

step five: and closing the switch, disconnecting the power connector 7 from the power supply, and connecting a high-voltage test lead with the lead connecting column to perform a high-voltage test.

The invention has the beneficial effects that:

the self-heating test fixture for the high-voltage test has the characteristics of high reliability, small volume, light weight and simplicity and convenience in operation, greatly reduces the labor intensity of workers, improves the working efficiency, improves the economic benefit of enterprises and also effectively avoids the damage to the environment.

Drawings

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

description of reference numerals: 1. the clamp comprises a clamp arm, 2, a heating body, 3, a wire binding post, 4, an insulating handle, 5, a rubber sheath, 6, a return spring, 7, a power connector, 8, a switch, 11, a mounting hole, 12 and triangular teeth.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments: