Tension test clamp

Abstract

A tension test clamp comprises a base and a lightning receiving belt fixing clamp, a limiting seat is arranged on the base, a limiting safety bolt is arranged on the limiting seat, a damper is arranged above the limiting safety bolt, the two ends of the damper are connected with the lightning receiving belt fixing clamp and a spring respectively, and a lock catch is arranged at the end, away from a fixing opening, of the lightning receiving belt fixing clamp. The tension test clamp is calibrated, the two ends of an existing practical common tension device are fixed to an externally-installed fixing device and an air-termination band fixing clamp 2 respectively, a damping rotary button 4 is rotated to adjust force to be tested, and during operation, the air-termination band fixing clamp 2 is pressed downwards firstly till the air-termination band fixing clamp 2 moves to a preset position, a limiting safety bolt 8 automatically locks a damper 10, and the air-termination band fixing clamp 2 is pressed downwards to move to the preset position. The lightning receiving belt fixing clamp 5 is fixed on the lightning receiving belt fixing support, and the limiting safety bolt 8 is opened, so that the vertical tensile force to be tested can be directly applied to the lightning receiving belt fixing support.

Description

TECHNICAL FIELD

[0001] The utility model relates to lightning protection detection equipment field especially relates to a tension test clamp. BACKGROUND

[0002] The main function of the lightning arrester is to intercept lightning and conduct lightning current to the metal device of down lead, according to the provisions of 5.5.1.6.3 in GB / T21431-2023: "Method: use tension meter and other equipment to exert a vertical tension of not less than 49N on the fixed support of lightning arrester, and observe whether it is fixed reliably". The tension meter on the market can only hook the lightning arrester and exert a vertical tension, so the force is not only loaded to the fixed support, but also to the lightning arrester, and the detection result cannot truly reflect the vertical tension of the lightning arrester fixed support, and the connection between the lightning arrester and the fixed support may be caused to fall off by the force before 49N tension is exerted, so that the vertical tension detection of the fixed support cannot be continued, and the lightning arrester is damaged in the detection process. UTILITY MODEL CONTENT

[0003] In view of the existing technical problems, the utility model aims at providing a detection equipment with simple structure, which can directly exert vertical tension on the lightning arrester fixed support.

[0004] The technical problems solved by the utility model can be solved by the following technical solutions:

[0005] A tension test clamp, comprising a base and a lightning arrester fixing clamp, a limiting seat is arranged on the base, a limiting safety bolt is arranged on the limiting seat, a damper is arranged above the limiting safety bolt;

[0006] The damper comprises a damping rotary knob, a screw rod and a nut assembly;

[0007] One end of the base close to the limiting seat is provided with a fixed seat, the fixed seat is fixed in the base, one end of the fixed seat away from the base is provided with a fixed port, one end of the nut assembly close to the fixed seat is provided with a fixed port, and a spring is connected between the two fixed ports;

[0008] One end of the damper away from the spring is fixedly connected with the lightning arrester fixing clamp.

[0009] Preferably, the shape of the clamping port of the lightning arrester fixing clamp is cross-shaped when closed.

[0010] Preferably, the nut assembly and the screw rod are rotationally connected, and the upper end of the screw rod is fixedly connected with the damping rotary knob.

[0011] Preferably, the base is a half-open C-shaped.

[0012] Preferably, the lightning rod fixing clamp is provided with a lock catch at one end away from the fixing port.

[0013] Compared with the prior art, the lightning rod device for lightning protection detection has the following beneficial effects:

[0014] A tension test clamp comprises a base and a lightning rod fixing clamp, the base is provided with a limiting seat, the limiting seat is provided with a limiting safety latch, a damper is arranged above the limiting safety latch, two ends of the damper are connected with the lightning rod fixing clamp and a spring respectively, and a lock catch is arranged at one end of the lightning rod fixing clamp away from the fixing port. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a side view of the utility model.

[0017] Reference signs: 1, base; 2, lightning rod fixing clamp; 3, lock catch; 4, damping rotary knob; 5, spring; 6, screw rod; 7, nut accessory; 8, limiting safety latch; 9, limiting seat; 10, damper; 11, fixing seat. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model patent will be further specifically explained below by means of embodiments and in combination with the drawings.

[0019] Embodiment:

[0020] A tension test clamp comprises a base 1 and a lightning rod fixing clamp 2, the base 1 is provided with a limiting seat 9, the limiting seat 9 is provided with a limiting safety latch 8, and a damper 10 is arranged above the limiting safety latch 8, when the damper 10 moves to a preset position, the latch automatically locks the damper 10, so that the damper 10 is prevented from rebounding;

[0021] The damper 10 comprises a damping rotary knob 4, a screw rod 6 and a nut accessory 7.

[0022] One end of the base 1 close to the limiting seat 9 is provided with a fixing seat 11, the fixing seat 11 is fixed in the base 1, one end of the fixing seat 11 away from the base 1 is provided with a fixing port, one end of the nut accessory 7 close to the fixing seat is provided with a fixing port, and a spring 5 is connected between the two fixing ports.

[0023] The rotating damping knob 4 drives the screw rod 6 to move up and down in the nut assembly 7, and the spring 5 exerts a force on the damper 10 under the stretching of the nut assembly 7.

[0024] The damper 10 is fixedly connected with the lightning belt fixing clamp 2 at the end opposite to the spring 5, and the rotating damping knob 4 is rotated to adjust the desired test tension, and the lightning belt fixing clamp 2 moves up and down under the action of the force, and the greater the force, the greater the upward movement of the lightning belt fixing clamp 2.

[0025] The shape of the clamping opening of the lightning belt fixing clamp 2 is cross-shaped, the long side is used for detecting a square steel with a square shape of 40*4, the short side is used for detecting a square steel with a square shape of 25*4, and the middle is used for detecting a round steel.

[0026] The nut assembly 7 and the screw rod 6 are rotationally connected, and the upper end of the screw rod 6 is fixedly connected with the damping knob 4.

[0027] The base 1 is a semi-open C-shaped, and a fixing device can be externally mounted at the gap, and the two ends of the tension tester are fixed at the externally mounted fixing device and the lightning belt fixing clamp 2, respectively, and the rotating damping knob 4 is adjusted to the desired test force.

[0028] The end of the lightning belt fixing clamp 2 away from the fixing opening is provided with a lock 3, and the lock 3 is closed when the lightning belt fixing clamp 2 is used.

[0029] In use, the tension test clamp is calibrated, and the two ends of the commonly used tension tester are fixed at the externally mounted fixing device and the lightning belt fixing clamp 2, respectively, and the rotating damping knob 4 is adjusted to the desired test force, and in operation, the lightning belt fixing clamp 2 is first pressed down until it moves to the preset position, and the limiting safety pin 8 automatically locks the damper 10, and the lightning belt fixing clamp 5 is fixed to the lightning belt fixing support, and the limiting safety pin 8 is opened, and the vertical tension to be tested can be directly applied to the lightning belt fixing support.

[0030] Finally, it should be pointed out that the above embodiments are only representative examples of the present patent. Obviously, the present patent is not limited to the above embodiments, and many modifications can be made. Any simple modification, equivalent change and modification made according to the technical essence of the present patent to the above embodiments shall be considered as falling within the protection scope of the present patent.

Claims

1. A tensile test clamp, comprising a base (1) and a lightning protection strap fixing clamp (2), characterized in that: The base (1) is provided with a limit seat (9), the limit seat (9) is provided with a limit safety pin (8), and a damper (10) is provided above the limit safety pin (8); The damper (10) includes a damping rotary knob (4), a screw (6), and a nut fitting (7); The base (1) is provided with a fixed seat (11) at one end near the limiting seat (9). The fixed seat (11) is fixed inside the base (1). The fixed seat (11) is provided with a fixing port at one end away from the base (1). The nut accessory (7) is provided with a fixing port at one end near the fixed seat. A spring (5) is connected between the two fixing ports. The damper (10) is fixedly connected to the end opposite to the spring (5) and the lightning protection clip (2).

2. The tensile testing clamp according to claim 1, characterized in that, The clamp of the lightning protection clip (2) is shaped like a cross when closed.

3. A tensile testing clamp according to claim 1, characterized in that, The nut fitting (7) and the screw (6) are rotatably connected, and the upper end of the screw (6) is fixedly connected to the damping rotary knob (4).

4. A tensile testing clamp according to claim 1, characterized in that, The base (1) is a semi-open C-shape.

5. A tensile testing clamp according to claim 1, characterized in that, The lightning protection clip (2) is provided with a latch (3) at the end away from the fixing port.

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