Stair stool static load test device

Abstract

The utility model discloses a stair stool static load test device, which belongs to the technical field of electric power tool test detection and comprises a stair stool, a test cabinet body, a movable cross beam, an electric capstan and a standard weight, the stair stool comprises a plurality of step-shaped pedals, the movable cross beam is connected to the top of the test cabinet body in a sliding manner, and the electric capstan is fixedly connected to the bottom of the movable cross beam. The top of the standard weight is fixedly connected with a lifting rope of the electric capstan, the movable cross beam is driven by the translation motor to move horizontally, and the left side of the movable cross beam is fixedly connected with the laser range finder. The automatic static load test can be realized, when the static load test of the ladder stool is carried out, only the ladder stool needs to be placed in the test cabinet body, the whole test is automatically completed, and the test efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power tool test detection, specifically relates to a ladder stool static load test device. BACKGROUND

[0002] The insulation performance of electric power insulation tools directly affects the safety of electric power production. With the rapid development of power grids in recent years, the number, types and usage of safety tools are rapidly increasing. The existing test detection device cannot fully meet the requirements of preventive tests of safety tools. With the implementation of "DLT1476-2023 Electric Power Safety Tool Preventive Test Regulations", there are clear requirements for the test method of ladder stools: "place the ladder stool steadily according to the working state, apply static load to each step, and the load should be applied within the range of 300mm±10mm of the center diameter of the step", and it is specified that the static load is 1765N (180kg) weight, and the load duration is 5 minutes.

[0003] In the prior art, when testing the ladder stool, 180kg weight is directly carried and placed on the step of the ladder stool to directly perform static load test, and the size of the weight is not limited. In order to facilitate the carrying of the weight, the weight is divided into standard weights of 20kg or other weights, which needs to be carried multiple times. In addition, static load test needs to be performed on each step of the ladder stool, which results in high labor intensity of the test personnel and low efficiency. In addition, this test method cannot meet the requirement that the load is applied within the range of 300mm±10mm of the center diameter of the step, and does not comply with the test regulation requirements. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the utility model provides a ladder stool static load test device, and the utility model is realized through the following technical schemes.

[0005] A ladder stool static load test device, comprising a ladder stool, the ladder stool comprising a plurality of step-shaped steps, further comprising a test cabinet body, a moving beam, an electric winch and a standard weight; the front side of the test cabinet body is provided with a pair of cabinet doors, the side away from each other of the cabinet doors is hinged to the test cabinet body, the moving beam is slidingly connected to the top of the test cabinet body, the electric winch is fixedly connected to the bottom of the moving beam, and the top of the standard weight is fixedly connected with the lifting rope of the electric winch.

[0006] Preferably, the standard weight is integrally formed and has a diameter of 300mm, and the mass of the standard weight is 180kg.

[0007] Preferably, the top of the test cabinet body is provided with a receiving cavity.

[0008] Preferably, the top of the test cabinet is fixedly connected with a moving bin, a pair of guide rails are symmetrically fixed in the moving bin, the bottom of the moving beam is fixedly connected with a sliding block in sliding connection with the guide rails, the front right of the moving bin is fixedly connected with a translation motor, the translation motor is driven with a driving pulley, the front left of the moving bin is rotatably connected with a driven pulley, and the driving pulley and the driven pulley are linked through a synchronous belt, and the synchronous belt is fixedly connected with the moving beam.

[0009] Preferably, the left side of the moving beam is fixedly connected with a laser range finder.

[0010] Preferably, the front side of the test cabinet is fixedly connected with a touch terminal, and the touch terminal is interactively connected with the electric capstan, the translation motor and the laser range finder.

[0011] The utility model discloses a vertical lifting standard weight through electric capstan, and the standard weight can be moved to the center of the pedal when the moving beam moves, so that the static load test can be realized automatically, and has the following beneficial effects:

[0012] 1, when the static load test of the ladder stool is carried out, only need to place the ladder stool to the test cabinet, and the whole test is automatically completed, which greatly improves the test efficiency.

[0013] 2, configure laser range finder, can automatically survey the width, height and quantity of the ladder stool step, and automatically complete the static load test of each step in turn. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the specific implementation mode description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0015] Figure 1 The front view of the ladder stool static load test device of the utility model is shown in the drawing.

[0016] Figure 2 The longitudinal section view of the ladder stool static load test device of the utility model is shown in the drawing.

[0017] Figure 3 : Figure 2 The local enlarged view of A shown in the drawing.

[0018] Figure 4 The top view of the internal structure of the moving bin of the utility model is shown in the drawing.

[0019] Figure 5 The structure schematic diagram of the ladder stool static load test of the utility model is shown in the drawing.

[0020] Figure 6 The utility model discloses a circuit connection schematic diagram of touch terminal.

[0021] The reference signs are as follows:

[0022] 100 - ladder bench, 200 - pedal, 1 - test cabinet, 2 - moving crossbeam, 3 - electric winch, 4 - standard weight, 5 - cabinet door, 6 - lifting rope, 7 - storage cavity, 8 - moving bin, 9 - guide rail, 10 - sliding block, 11 - translation motor, 12 - driving pulley, 13 - driven pulley, 14 - synchronous belt, 15 - laser range finder, 16 - touch terminal. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] As shown in Figures 1-6 A ladder bench static load test device, comprising a ladder bench 100, the ladder bench 100 includes a plurality of step-shaped pedals 200, further comprising a test cabinet 1, a moving crossbeam 2, an electric winch 3 and a standard weight 4; the front side of the test cabinet 1 is provided with a cabinet door 5 that is opened, and the side away from each other of the cabinet door 5 is hinged with the test cabinet 1, the moving crossbeam 2 is slidingly connected at the top of the test cabinet 1, the electric winch 3 is fixedly connected at the bottom of the moving crossbeam 2, and the top of the standard weight 4 is fixedly connected with the lifting rope 6 of the electric winch 3.

[0025] Further, the standard weight 4 is integrally formed and has a diameter of 300 mm, and the mass of the standard weight 4 is 180 kg.

[0026] The weight of the weight is 180 kg, which meets the weight requirement of static load application, and the diameter of the weight is 300 mm, which can meet the requirement that the static load is applied within the range of 300 mm ± 10 mm of the center diameter of the pedal.

[0027] Further, the top of the test cabinet 1 is provided with a storage cavity 7.

[0028] Further, the top of the test cabinet body 1 is fixedly connected with a moving bin 8, a pair of guide rails 9 is symmetrically fixedly connected inside the moving bin 8, the bottom of the moving cross beam 2 is fixedly connected with a sliding block 10 in sliding connection with the guide rails 9, the right front of the moving bin 8 is fixedly connected with a translation motor 11, the translation motor 11 is driven with a driving pulley 12, the left front of the moving bin 8 is rotatably connected with a driven pulley 13, the driving pulley 12 and the driven pulley 13 are linked through a synchronous belt 14, and the upper side of the synchronous belt 14 is fixedly connected with the moving cross beam 2.

[0029] Further, the left side of the moving cross beam 2 is fixedly connected with a laser range finder 15.

[0030] The translation motor 11 drives the driving pulley 12 to rotate, so as to drive the synchronous belt 14 to move, the synchronous belt 14 drives the moving cross beam 2 to move horizontally, so as to drive the laser range finder 15 to move, thereby facilitating the measurement of the height of the step plate 200.

[0031] Further, the front side of the test cabinet body 1 is fixedly connected with a touch terminal 16, and the touch terminal 16 is interactively connected with the electric winch 3, the translation motor 11 and the laser range finder 15.

[0032] The touch terminal 16 is used for providing touch virtual buttons required in the test, and simultaneously controls the laser range finder 15, the translation motor 11, the electric winch 3 and the like and communicates with each other, through the real-time height information fed back by the laser range finder 15, in combination with the real-time position information of the moving cross beam 2 fed back by the translation motor 11, the width, the height and the number of the step stools 100 are accurately calculated and surveyed, and then the electric winch 3 is controlled to accurately hoist the standard weight 4 to perform the static load test on the step stools 100.

[0033] One specific embodiment of the utility model discloses the following:

[0034] The utility model discloses when carrying out test has two working procedures of test preparation procedure and test procedure.

[0035] The steps of the test preparation procedure are as follows:

[0036] ①, the test personnel places the step stool 100 to the bottom platform of the test cabinet body 1, then clicks start test on the touch terminal 16;

[0037] ②, the touch terminal 16 controls the electric winch 3 to hoist the standard weight 4 from the origin (i.e. the leftmost side) into the storage cavity 7;

[0038] ③, the touch terminal 16 controls the translation motor 11 to work, drives the moving crossbeam 2 to move horizontally to the right, and feedbacks the horizontal coordinate position of the moving crossbeam 2 in real time; meanwhile, the touch terminal 16 controls the laser range finder 15 to measure the distance from the bottom platform and the step 200 of the test cabinet 1, and feedbacks the distance to the touch terminal 16 in real time, then measures a group of height values every time the moving crossbeam 2 moves one unit until the moving crossbeam 2 moves to the end point;

[0039] ④, the moving crossbeam 2 drives the standard weight 4 to return to the original point, and the touch terminal 16 combines the coordinate position information of the moving crossbeam 2 and the height value corresponding to each position, calculates the number of the step 200 and the width and height of each step through the edge algorithm.

[0040] The test process comprises the following steps:

[0041] ①, the touch terminal 16 controls the translation motor 11 to work, drives the moving crossbeam 2 to move horizontally to the right, and moves to the position corresponding to the center of the first step 200;

[0042] ②, the touch terminal 16 controls the electric winch 3 to lower the standard weight 4 from below to the step 200, and then lifts the standard weight 4 after 5 minutes of static placement;

[0043] ②, repeat the first step and the second step to complete the static load test of the remaining steps 200,

[0044] ④, after completing the static load test of all the steps 200, the touch terminal 16 controls the electric winch 3 to lift the standard weight 4 to the top, and the translation motor 11 drives the moving crossbeam 2 to move horizontally, so that the standard weight 4 is reset to the original point.

[0045] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A step stool static load test device, comprising a step stool (100), wherein the step stool (100) comprises a plurality of step-shaped pedals (200), characterized in that: The invention also comprises a test cabinet (1), a movable crossbeam (2), an electric winch (3) and a standard weight (4); the front side of the test cabinet (1) is provided with a cabinet door (5) which opens in opposite directions, and the sides of the cabinet door (5) which are away from each other are hinged to the test cabinet (1); the movable crossbeam (2) is slidably connected to the top of the test cabinet (1); the electric winch (3) is fixed to the bottom of the movable crossbeam (2); and the top of the standard weight (4) is fixed to the lifting rope (6) of the electric winch (3).

2. A static load test device for a step stool (100) according to claim 1, characterized in that: The standard weight (4) is integrally formed and has a diameter of 300 mm. The mass of the standard weight (4) is 180 kg.

3. A static load test device for a step stool (100) according to claim 1, characterized in that: A storage cavity (7) is provided on the top of the test cabinet (1).

4. A static load test device for a step stool (100) according to claim 1, characterized in that: The top of the test cabinet (1) is fixedly connected to a mobile bin (8), a pair of guide rails (9) are fixedly connected to the interior of the mobile bin (8) in a front-to-back symmetrical manner, a slider (10) is fixedly connected to the bottom of the mobile beam (2) and is slidably connected to the guide rails (9), a translation motor (11) is fixedly connected to the right front of the mobile bin (8), a driving pulley (12) is driven by the translation motor (11), and a driven pulley (13) is rotatably connected to the left front of the mobile bin (8), the driving pulley (12) and the driven pulley (13) are linked by a synchronous belt (14), and the upper part of the synchronous belt (14) is fixedly connected to the mobile beam (2).

5. A static load test device for a step stool (100) according to claim 4, characterized in that: A laser rangefinder (15) is fixedly connected to the left side of the movable crossbeam (2).

6. A static load test device for a step stool (100) according to claim 5, characterized in that: A touch terminal (16) is fixedly connected to the front side of the test cabinet (1), and the touch terminal (16) is interactively connected to the electric winch (3), the translation motor (11), and the laser rangefinder (15).

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