Auxiliary device for tension detection of insulating ladder

Abstract

The utility model relates to an insulating ladder tension detection auxiliary device, and belongs to the technical field of insulating ladder detection. Comprising a support, a support guide rail, a fixed pulley and a fixed pulley guide rail, the support is composed of two pairs of supporting rods, the tops of the supporting rods are provided with fixing assemblies for fixing the insulating ladder, the bottoms of the supporting rods are provided with first U-shaped fixing blocks, the first U-shaped fixing blocks are installed on the support guide rail, and the bottoms of the fixed pulleys are provided with second U-shaped fixing blocks; the second U-shaped fixing block is mounted on the fixed pulley guide rail; the support is adjustable, and the insulating ladder is placed on the support through the fixing assembly, so that the insulating ladders with different lengths and thicknesses can be conveniently fixed. Meanwhile, the position of the fixed pulley can be adjusted during testing, so that different treading cross arm center points of the insulating ladder are effectively stressed, the accuracy of a detection result is improved, and the working efficiency and the detection effect are improved.

Description

Technical Field

[0001] This utility model belongs to the field of insulated ladder testing technology, specifically relating to an auxiliary device for testing the tensile strength of an insulated ladder. Background Technology

[0002] Insulated ladders and other protective equipment are required for working at heights in power systems. Before being put into use, these ladders need to undergo strength testing on their crossarms. Because insulated ladders are typically quite long, traditional tensile testing machines are inconvenient to place during testing, making it impossible to test the stress on the center point of the crossarm. This leads to several problems, such as inaccurate test results, inability to simulate the most unfavorable actual stress, misjudgment of product safety, and difficulty in detecting potential defects in weak points like the center point of the crossarm. This results in low testing efficiency, requiring complex and indirect methods that consume more time and manpower. Therefore, this invention provides an auxiliary device for tensile testing of insulated ladders to solve the above problems. Summary of the Invention

[0003] To overcome the problems mentioned in the background art, this utility model provides an auxiliary device for testing the tensile strength of insulated ladders. The bracket of this utility model is adjustable, and the insulated ladder is placed on the bracket via a fixing component, facilitating the fixing of insulated ladders of different lengths and thicknesses. Simultaneously, the position of the fixed pulley can be adjusted during testing to ensure effective force distribution at the center points of different stepping crossarms of the insulated ladder, improving the accuracy of the test results and enhancing work efficiency and testing effectiveness.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: An auxiliary device for testing the tensile strength of an insulating ladder includes a bracket 100, a bracket guide rail 103, a fixed pulley 200, and a fixed pulley guide rail 201. The bracket 100 consists of two pairs of support rods 102. A fixing component 101 for fixing the insulating ladder is installed at the top of the support rod 102, and a first U-shaped fixing block 104 is installed at the bottom of the support rod 102. The first U-shaped fixing block 104 is mounted on the bracket guide rail 103. A second U-shaped fixing block 202 is installed at the bottom of the fixed pulley 200, and the second U-shaped fixing block 202 is mounted on the fixed pulley guide rail 201.

[0005] Furthermore, the fixing assembly 101 includes a sleeve 105 and an L-shaped rod 106. The sleeve 105 is installed on the inner side of the top of the support rod 102, and the L-shaped rod 106 is movably fitted inside the sleeve 105.

[0006] Furthermore, the bracket guide rail 103 and the first U-shaped fixing block 104 are respectively provided with a plurality of first pin holes 107.

[0007] Furthermore, the fixed pulley guide rail 201 and the second U-shaped fixing block 202 are respectively provided with a plurality of second pin holes 203.

[0008] Furthermore, the sleeve 105 and the L-shaped rod 106 are fixedly connected by a spring limit button.

[0009] The beneficial effects of this utility model are:

[0010] This utility model features an adjustable support bracket, on which the insulated ladder is placed for mounting via a fixing assembly, facilitating the securing of insulated ladders of varying lengths and thicknesses. During testing, the position of the fixed pulleys can be easily adjusted to ensure effective force distribution at different points on the crossarms of the insulated ladder, improving the accuracy of test results, reducing the risk of misjudgment, and identifying potential weak points. The device has a simple structure, facilitating tensile testing of insulated ladders, saving time and costs, quickly completing accurate tests, reducing manpower consumption, and improving work efficiency and testing effectiveness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the auxiliary device for fixing the insulating ladder of this utility model.

[0013] Figure 3 This is a schematic diagram of the tensile test of the short insulating ladder of this utility model.

[0014] Figure 4 This is a schematic diagram of the tensile test of the long insulated ladder of this utility model.

[0015] Reference numerals: In the figure, bracket 100, fixing component 101, support rod 102, bracket guide rail 103, first U-shaped fixing block 104, sleeve 105, L-shaped rod 106, first pin hole 107, fixed pulley 200, fixed pulley guide rail 201, second U-shaped fixing block 202, second pin hole 203, and insulating ladder 300. Detailed Implementation

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0017] like Figure 1-4This utility model discloses an auxiliary device for testing the tensile strength of an insulated ladder. The device includes a support 100, a support rail 103, a fixed pulley 200, and a fixed pulley rail 201. The support 100 consists of two pairs of support rods 102. A fixing component 101 for fixing the insulated ladder is installed at the top of each support rod 102, and a first U-shaped fixing block 104 is installed at the bottom of each support rod 102, which is mounted on the support rail 103. A second U-shaped fixing block 202 is installed at the bottom of each fixed pulley 200, which is mounted on the fixed pulley rail 201. The support is adjustable, and the insulated ladder is placed on the support via the fixing component, facilitating the fixing of insulated ladders of different lengths and thicknesses. During testing, the position of the fixed pulley can be adjusted to ensure effective force distribution at different crossarm center points of the insulated ladder, improving the accuracy of the test results, reducing the risk of misjudgment, and identifying potential weak points. This device has a simple structure and facilitates tensile testing of insulated ladders. Using this device can save time and costs, quickly complete accurate tests, reduce manpower consumption, and improve work efficiency and testing results.

[0018] The fixing component 101 includes a sleeve 105 and an L-shaped rod 106. The sleeve 105 is installed on the inner side of the top of the support rod 102, and the L-shaped rod 106 is movably fitted inside the sleeve 105. The sleeve 105 and the L-shaped rod 106 are fixedly connected by a spring limit button. A spring button is provided on the L-shaped rod, and multiple fixing holes are provided on the sleeve to facilitate the passage of the spring button, so as to facilitate the adjustment of the position of the L-shaped rod and the fixing of insulating ladders of different thicknesses. During testing, the L-shaped rod is adjusted according to the thickness of the insulating ladder legs to clamp the insulating ladder legs and prevent the insulating ladder from shifting.

[0019] The support guide rail 103 and the first U-shaped fixing block 104 are respectively provided with a plurality of first pin holes 107; the support guide rail is covered with first pin holes, and the first U-shaped fixing block and the support rod are fixed to the support guide rail by pins, which facilitates fixing and adjusting the position of the support rod. During testing, the position of the support rod can be adjusted and fixed according to the length of the insulating ladder, which is convenient for fixing insulating ladders of different lengths and enhances practicality.

[0020] The fixed pulley guide rail 201 and the second U-shaped fixing block 202 are respectively provided with multiple second pin holes 203; the fixed pulley guide rail is covered with second pin holes, and the second U-shaped fixing block and the fixed pulley are fixed to the fixed pulley guide rail by pins, which facilitates the adjustment of the fixed pulley position and ensures that the crossarm of the insulated ladder is correctly stressed during the test. The fixed pulley is adjusted according to the position of the crossarm of each part of the insulated ladder so that the tension can be applied to the crossarm to be tested at a suitable angle, ensuring that the test is carried out smoothly, while reducing the impact of improper tension direction on the test results.

[0021] Work process:

[0022] The working principle of this utility model is as follows: The support rod 102 is adjusted and fixed to a suitable position on the bracket guide rail 103 according to the length of the insulating ladder 300. The L-shaped rod 106 is adjusted according to the thickness of the insulating ladder legs to clamp the legs and prevent displacement of the insulating ladder. One end of a rope is securely tied to the crossarm of the insulating ladder 300 to be inspected. The other end of the rope is vertically downwards, passing over the fixed pulley 200, and then leading to the fixed pulley of the tensile testing machine. After passing over the fixed pulley of the testing machine, it is vertically upwards and securely connected to the pull ring of the tensile testing machine. After fixing, the tensile testing machine is started to begin testing.

[0023] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An insulating ladder pull detection aid characterized by: The aforementioned auxiliary device for testing the tensile strength of an insulating ladder includes a bracket (100), a bracket guide rail (103), a fixed pulley (200), and a fixed pulley guide rail (201). The bracket (100) consists of two pairs of support rods (102). A fixing component (101) for fixing the insulating ladder is installed on the top of the support rod (102), and a first U-shaped fixing block (104) is installed on the bottom of the support rod (102). The first U-shaped fixing block (104) is installed on the bracket guide rail (103). A second U-shaped fixing block (202) is installed on the bottom of the fixed pulley (200), and the second U-shaped fixing block (202) is installed on the fixed pulley guide rail (201).

2. The insulating ladder tension detection auxiliary device according to claim 1, characterized in that: The fixing component (101) includes a sleeve (105) and an L-shaped rod (106). The sleeve (105) is installed on the inner side of the top of the support rod (102), and the L-shaped rod (106) is movably fitted inside the sleeve (105).

3. The insulating ladder tension detection auxiliary device according to claim 1, characterized in that: The bracket guide rail (103) and the first U-shaped fixing block (104) are respectively provided with a plurality of first pin holes (107).

4. The insulating ladder tension detection auxiliary device according to claim 1, characterized in that: The fixed pulley guide rail (201) and the second U-shaped fixing block (202) are provided with a number of second pin holes (203).

5. The insulating ladder tension detection auxiliary device according to claim 2, characterized in that: The sleeve (105) and the L-shaped rod (106) are fixedly connected by a spring limit button.

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