Lightning protection fixing support vertical tension testing device

Abstract

The utility model discloses a lightning protection fixed support vertical tension test device, comprising a support underframe arranged on a lightning arrester installation plane, a test support is arranged right above the support underframe, the support underframe and the test support are connected through an extension cylinder rod end portion, and the extension cylinder rod end portion is connected with the test support. The other end of the extending cylinder rod is far away from the supporting bottom frame and the testing bracket; a hooking assembly used for hooking the lightning protection fixing support is arranged on the portion, located on the supporting bottom frame, of the testing support, a tension control assembly is arranged above the hooking assembly, and the tension control assembly is located at the end, away from the testing support, of the extension cylinder rod. Wherein the hooking assembly is used for lifting the lightning protection fixing support for testing by adjusting the pulling force of the pulling force control assembly. According to the utility model, through the arrangement of the hooking assembly and the tension control assembly, the vertical tension of the lightning protection fixing support can be accurately tested. The tension sensor can measure the hooking tension of the lifting hook to ensure that the test result is accurate and reliable.

Description

Technical Field

[0001] The utility model relates to a vertical tensile force testing device for a lightning protection fixing bracket. Background Art

[0002] A lightning arrester refers to a lightning rod, a lightning protection strip (wire), a lightning protection net that directly receives lightning strikes, as well as a metal roof and metal components used as lightning arresters. It has a good electrical connection with the down conductor and the grounding device. Its function is that when lightning directly hits it, the lightning current passes through itself, the down conductor, and the grounding device, and quickly discharges into the earth, thereby protecting the building and the electrical equipment in the building.

[0003] According to national standards, in order to ensure that the building is within the protection range of the lightning arrester, lightning arresters are installed at the edges of the building ridge and eaves, and the fixing brackets used to install the lightning arresters need to meet certain requirements.

[0004] The national standard stipulates that the fixing bracket of the lightning protection strip should be able to withstand a vertical tensile force of 49 N (perpendicular to the installation plane); the fixing bracket of the exposed down conductor should be able to withstand a vertical tensile force of 49 N (perpendicular to the installation plane).

[0005] In the prior art, it is not convenient to use an ordinary tensiometer to test the vertical tensile force of the fixing bracket of the lightning arrester on the roof edge. At the same time, when using an ordinary tensiometer for testing, manually performing the tensile force test on some edge parts of the lightning protection strip is not convenient for precisely controlling the magnitude of the force, and it is impossible to stably and continuously apply a vertical tensile force of not less than 49 N (perpendicular to the installation plane). It is impossible to ensure the accuracy, scientificity, and fairness of the detection results.

[0006] Therefore, a vertical tensile force testing device for a lightning protection fixing bracket is proposed. Content of the Utility Model

[0007] The purpose of the utility model is to provide a vertical tensile force testing device for a lightning protection fixing bracket to solve the problems of inconvenient measurement and inaccurate testing of the vertical tensile force of the fixing bracket of the lightning arrester in the prior art as mentioned in the above background art.

[0008] To solve the above technical problems, the utility model provides the following technical solution: A vertical tensile force testing device for a lightning protection fixing bracket, including a support chassis arranged at the lightning arrester installation plane, a testing bracket is arranged directly above the support chassis, the support chassis and the testing bracket are connected by the end of an extension cylinder rod, and the other end of the extension cylinder rod is far away from the support chassis and the testing bracket;

[0009] The testing bracket is provided with a hanging component for hooking the lightning protection fixing bracket on the support chassis, a tensile force control component is arranged above the hanging component, and the tensile force control component is located at the end of the extension cylinder rod far away from the testing bracket;

[0010] Among them, the hanging component is used to lift and test the lightning protection fixing bracket by adjusting the tension of the tension control component.

[0011] Preferably, the hanging component includes two groups of hooks located directly above the support chassis. The two groups of hooks are connected by a connecting rod. The connecting rod is connected with a tension sensor through a support rod. The tension sensor is used to detect the hanging tension of the two groups of hooks.

[0012] Preferably, a spirit level for displaying the horizontal state of the two groups of hooks is also arranged at the tension sensor.

[0013] Preferably, the tension control component includes a bearing cylinder arranged at the end of the extension cylinder rod. A sliding rod is slidably connected inside the bearing cylinder. A light rope is arranged on the side of the sliding rod closer to the extension cylinder rod. And the light rope is connected with the tension sensor through three groups of pulleys.

[0014] Preferably, the three groups of pulleys are located inside the extension cylinder rod, so that the light rope is connected with the tension sensor located at the test bracket through a roller.

[0015] Preferably, a moving grip for adjusting the position of the sliding rod is arranged on the sliding rod. The bearing cylinder is provided with a guiding groove on the sliding rod for the linear movement of the moving grip.

[0016] Preferably, a fixed grip for the tester to hold is arranged on the bearing cylinder.

[0017] Preferably, a display for displaying the tension of the tension sensor is arranged at the extension cylinder rod, and the display is electrically connected with the tension sensor.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] By arranging the hanging component and the tension control component, the present utility model can accurately test the vertical tension of the lightning protection fixing bracket. The tension sensor can measure the hanging tension of the hook, ensuring the accuracy and reliability of the test results.

[0020] The tension control component in the device allows the tester to adjust the magnitude of the tension to ensure that the vertical tension applied to the lightning protection fixing bracket is not less than the specified standard value. This can ensure the scientificity and fairness of the test.

[0021] The device is equipped with a spirit level, which helps the tester to adjust and calibrate the device to ensure the accuracy and stability during the test process.

[0022] The sliding rod and the moving grip in the device make it more convenient to adjust and move the device. At the same time, the design of the guiding groove can achieve linear movement, improving the flexibility of the operation.

[0023] The device is also equipped with a display for showing the tensile force value measured by the tensile force sensor. In this way, the tester can intuitively understand the test results, which is convenient for recording and analysis. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 It is a schematic top view structure diagram of an embodiment of the present utility model;

[0026] Figure 3 It is a schematic cross-sectional structure diagram of an embodiment of the present utility model.

[0027] In the figure: 1, support chassis; 2, extension cylinder rod; 3, test bracket; 4, hook assembly; 401, hook; 402, connecting rod; 403, support rod; 404, tensile force sensor; 405, spirit level; 5, tensile force control assembly; 501, bearing cylinder; 5011, guide groove; 502, sliding rod; 503, light rope; 504, pulley; 505, moving grip; 506, fixed grip; 507, display. Detailed Embodiment

[0028] In order to facilitate solving the problems of inconvenient measurement and inaccurate testing of the vertical tensile force of the lightning arrester fixing bracket in the prior art, an embodiment of the present utility model provides a vertical tensile force testing device for a lightning protection fixing bracket. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-3 , the present utility model provides a vertical tensile force testing device for a lightning protection fixing bracket, including a support chassis 1 arranged at the lightning arrester installation plane, a test bracket 3 is arranged directly above the support chassis 1, the support chassis 1 and the test bracket 3 are connected by the end of an extension cylinder rod 2, and the other end of the extension cylinder rod 2 is far away from the support chassis 1 and the test bracket 3;

[0030] The test bracket 3 is provided with a hook assembly 4 for hooking the lightning protection fixing bracket on the support chassis 1, a tensile force control assembly 5 is arranged above the hook assembly 4, and the tensile force control assembly 5 is located at the end of the extension cylinder rod 2 far away from the test bracket 3;

[0031] The hanging component 4 includes two groups of hooks 401 located directly above the support chassis 1. The two groups of hooks 401 are connected by a connecting rod 402. The connecting rod 402 is connected to a tension sensor 404 through a support rod 403. The tension sensor 404 is used to detect the hanging tension of the two groups of hooks 401. A spirit level 405 for displaying the horizontal state of the two groups of hooks 401 is also provided at the tension sensor 404.

[0032] The tension control component 5 includes a bearing cylinder 501 provided at the end of the extension cylinder rod 2. A sliding rod 502 is slidably connected inside the bearing cylinder 501. A light rope 503 is provided on the side of the sliding rod 502 closer to the extension cylinder rod 2, and the light rope 503 is connected to the tension sensor 404 through three pulleys 504. The three pulleys 504 are located inside the extension cylinder rod 2, so that the light rope 503 is connected to the tension sensor 404 located at the test bracket 3 through a roller. A moving grip 505 for adjusting the position of the sliding rod 502 is provided on the sliding rod 502. A guiding groove 5011 for the linear movement of the moving grip 505 is provided on the bearing cylinder 501 where the sliding rod 502 is located. A fixed grip 506 for the tester to hold is provided on the bearing cylinder 501. A display 507 for displaying the tension of the tension sensor 404 is provided at the extension cylinder rod 2, and the display 507 is electrically connected to the tension sensor 404.

[0033] Among them, the hanging component 4 is used to lift and test the lightning protection fixing bracket by adjusting the tension of the tension control component 5.

[0034] The working principle of a lightning protection fixing bracket vertical tension testing device provided by the present utility model is as follows: Place the support chassis 1 at the lightning arrester installation plane. Push and pull the moving grip 505 forward and backward to control the height of the hook 401 until the hook 401 is hung on the lightning arrester fixing bracket. Hold the fixed grip 506 and the moving grip 505 with one hand. The tester manually moves the moving grip 505 closer to the fixed grip 506, pulls the light rope 503, so that it drives the tension sensor 404 and the hook 401 to move upward. The upward movement of the hook 401 generates a vertical tension perpendicular to the lightning arrester installation plane on the lightning arrester fixing bracket. The tension sensor 404 generates a corresponding electrical signal and transmits it to the display 507. The display 507 displays the magnitude of the tension. After reaching 49 N, stop pulling the moving grip 505, and observe whether the lightning arrester fixing bracket is fixed reliably to complete the detection.

[0035] Subsequently, during daily maintenance, it is necessary to regularly calibrate the tension value of the hook using a standard dynamometer.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vertical tension test device for a lightning protection fixed bracket, characterized in that: It comprises a support base frame (1) arranged on a lightning arrester installation plane, a test bracket (3) being arranged directly above the support base frame (1), the support base frame (1) and the test bracket (3) being connected via the end of an extension rod (2), and the other end of the extension rod (2) being away from the support base frame (1) and the test bracket (3); The test bracket (3) is located on the support base (1) and is provided with a hook assembly (4) for hooking the lightning protection fixed bracket, and a tension control assembly (5) is provided above the hook assembly (4), and the tension control assembly (5) is located at an end of the extension rod (2) away from the test bracket (3); The hook assembly (4) is used to lift the lightning protection fixing bracket for testing by adjusting the tension of the tension control assembly (5).

2. A lightning protection fixed bracket vertical tension test device according to claim 1, characterized in that: The hook assembly (4) comprises two groups of hooks (401) located directly above the supporting base frame (1); the two groups of hooks (401) are connected via a connecting rod (402); the connecting rod (402) is connected to a tension sensor (404) via a supporting rod (403); the tension sensor (404) is used to detect the hook tension of the two groups of hooks (401).

3. A lightning protection fixed bracket vertical tension test device according to claim 2, characterized in that: The tension sensor (404) is also provided with a level ruler (405) for displaying the horizontal status of the two sets of hooks (401).

4. A lightning protection fixed bracket vertical tension test device according to claim 3, characterized in that: The tension control assembly (5) comprises a bearing tube (501) arranged at the end of the extension tube rod (2), the bearing tube (501) is slidably connected to a slide rod (502) inside, a light rope (503) is arranged on the side of the slide rod (502) closer to the extension tube rod (2), and the light rope (503) is connected to the tension sensor (404) via three sets of pulleys (504).

5. A lightning protection fixed bracket vertical tension test device according to claim 4, characterized in that: The three groups of pulleys (504) are located inside the extension tube rod (2) so that the light rope (503) is connected to the tension sensor (404) located at the test bracket (3) through the roller.

6. A lightning protection fixed bracket vertical tension test device according to claim 5, characterized in that: The slide bar (502) is provided with a movable handle (505) for adjusting the position of the slide bar (502), and the support tube (501) is located on the slide bar (502) and is provided with a guide groove (5011) for linear movement of the movable handle (505).

7. A lightning protection fixed support vertical tension test device according to claim 6, characterized in that: The carrying tube (501) is provided with a fixed handle (506) for a tester to hold.

8. A lightning protection fixed support vertical tension test device according to claim 7, characterized in that: A display (507) for displaying the tension of the tension sensor (404) is provided at the extension tube rod (2), and the display (507) is electrically connected to the tension sensor (404).

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