Ladder integral static load test device

Abstract

The utility model relates to the technical field of ladder static load test devices, and particularly discloses a ladder integral static load test device, which comprises a support assembly, a test assembly arranged on the support assembly, a driving assembly arranged in the support assembly, and a transposition assembly and a fixing assembly respectively arranged below the support assembly. A steel wire rope is connected between the test assembly and the driving assembly; the supporting assembly comprises a control box located on one side of the testing assembly, a switch is arranged above the control box, a supporting frame is arranged on one side of the control box, a sliding rail is arranged on the supporting frame, pulleys are arranged on the sliding rail, and an upper slide and a lower slide are arranged on the sliding rail. And the structural design of the driving assembly and the transposition assembly facilitates the adjustment of the stretching angle of the steel wire rope, so that the conditions of deformation, fracture and the like of the ladder under different static loads can be tested, and the working efficiency of measurement can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ladder static load test device, especially to a ladder whole static load test device. BACKGROUND

[0002] Ladder whole static load test is a safety test for ladders, aiming to evaluate their stability and load-bearing capacity under external static load (i.e. load without dynamic impact). The main purpose of this test is to ensure that the ladder can withstand the expected load during use without damage or deformation.

[0003] According to the design specifications and usage requirements of the ladder, appropriate static load is selected. For example, for ordinary working ladders, the specified static load may be the rated load of the ladder or higher. The predetermined static load is uniformly applied to the working surface or support point of the ladder using standard weights, ensuring that the load application method meets the specification requirements. After the load is applied, observe whether the ladder has permanent deformation or damage, especially in the load-bearing part, connection point and support part, to ensure that the ladder does not have structural failure under load.

[0004] Ladder whole static load test device is a device used to detect the performance and safety of ladders under static load. This type of test device is usually used to verify whether the ladder or other ladder can maintain structural stability under certain load, preventing deformation, rupture or other safety accidents. The purpose is to ensure that the ladder meets the relevant safety standards, especially under the maximum load in use to ensure stability and safety.

[0005] The existing ladder whole static load test device has the following technical problems: 1. Insufficient load capacity: the load capacity of the test device may not meet the predetermined load requirements, resulting in device damage or instability during the test, affecting the accuracy of the test results. 2. Low measurement accuracy: during the load test, the pressure sensor, displacement sensor and other measurement equipment may not obtain sufficient data, resulting in inaccurate recording of the stress and deformation of the ladder under static load. 3. Structural instability: the support structure design of the test device may have defects, which may cause uneven force distribution during loading, affecting the reliability of the test results. UTILITY MODEL CONTENTS

[0006] (I) Technical problems to be solved

[0007] To solve the above problems, the utility model provides a ladder whole static load test device, especially a test device for testing the static load of the whole ladder, aiming to solve the problems of insufficient load capacity, low measurement accuracy and structural instability of the current ladder whole static load test device.

[0008] (ii) Technical Solution

[0009] To solve the technical problem, the utility model provides a whole static load test device of ladder, including support subassembly, be provided with test subassembly on support subassembly, be provided with drive assembly in support subassembly, be provided with transposition subassembly and fixed component respectively below support subassembly, be connected with steel wire rope between test subassembly with drive assembly,

[0010] Support subassembly includes control box in one side of test subassembly, be provided with switch above control box, be provided with support frame on one side of control box, be provided with slide rail on support frame, be provided with pulley on slide rail, be provided with upper slide ladder and lower slide ladder respectively on slide rail,

[0011] Drive assembly includes connecting rod connected with control box, one end of connecting rod is connected with truss, one side of truss is provided with oil cylinder, the inside of oil cylinder is provided with piston rod, one end of piston rod is connected with first connecting block,

[0012] Test subassembly includes ladder in the above of support frame, be provided with second connecting block on ladder, the inside of second connecting block is provided with pressure sensor, be provided with lifting ring below second connecting block, the hook is connected with lifting ring,

[0013] Transposition subassembly includes bottom plate in the below of support subassembly, be provided with third connecting block on both sides of bottom plate, be provided with transposition hole on bottom plate, be provided with limit support on transposition hole, be provided with first limit shaft in limit support, be connected with second bolt between first limit shaft with limit support.

[0014] Further, the fixed component includes a base, the base is provided with a fixed support, the fixed support is provided with a first connecting ring, one side of the first connecting ring is connected with a second connecting ring, one side of the second connecting ring is provided with a connecting support, the connecting support is provided with a second limit shaft, the connecting support and the second limit shaft are connected by a third bolt.

[0015] Further, the upper slide ladder and the lower slide ladder are slidingly connected, and the pulley and the slide rail are slidingly connected.

[0016] Further, the first connecting block of the drive assembly is provided with a through hole, and the through hole is provided with a plurality of through holes.

[0017] Further, the axis of the connecting rod is parallel to the axis of the piston rod, and the axis of the oil cylinder and the axis of the piston rod are located on the same straight line.

[0018] Further, the axis of the slide rail is parallel to the axis of the connecting rod, and the plurality of pulleys are symmetrically arranged relative to the slide rail.

[0019] Further, the plurality of transposition holes are equidistantly arranged.

[0020] Further, the first limiting shaft is located at the center of symmetry of the limiting support, and the first limiting shaft is detachably connected with the limiting support.

[0021] Advantages

[0022] 1. The utility model provides a whole static load test device of ladder, the whole static load test device of ladder includes support subassembly, is provided with test subassembly in the top of support subassembly, is provided with drive subassembly in support subassembly, is provided with transposition subassembly and fixed subassembly respectively in the below of support subassembly, is connected with steel wire rope between test subassembly and drive subassembly, the whole static load test device of ladder simple whole structure, reasonable in design, it is convenient for staff to install and use, it is convenient to carry out the whole static load test of ladder.

[0023] 2. The utility model provides a whole static load test device of ladder, the support subassembly designed by the whole static load test device of ladder, the support subassembly includes the control box in the side of test subassembly, is provided with switch in the top of control box, is provided with support frame in the side of control box, is provided with slide rail on support frame, is provided with pulley on slide rail, is provided with upper slide ladder and lower slide ladder respectively on slide rail, the support subassembly can be through the switch on control box, starts control box work, and then drives pulley to slide on the slide rail of support frame, thereby makes upper slide ladder move above lower slide ladder, and adjusts the telescopic length of upper slide ladder according to actual need, is convenient for the static load performance test of ladder of different length size, has higher carrying capacity, in addition, the telescopic design of support subassembly, stable structure, it is convenient for staff to carry, help to test the static load performance of ladder under many environments, expand the use range of the whole static load test device of ladder.

[0024] 3. The utility model provides a whole static load test device of ladder, the driving assembly of whole static load test device of ladder designs, is connected with the connecting rod of control box, the one end of connecting rod is connected with truss, one side of truss is provided with the oil cylinder, the inside of oil cylinder is provided with piston rod, and the one end of piston rod is connected with first connecting block, the telescopic of connecting rod is controlled through the control box of this driving assembly, and the telescopic of connecting rod drives truss connected with it to move in horizontal direction to drive the oil cylinder of installation in truss to move, and the piston rod is driven to move by oil cylinder, because the one end of piston rod is connected with first connecting block, and the through hole of first connecting block is provided with the connection of steel wire rope, can adjust the position of steel wire rope and through the connection according to actual demand in the test process, and cooperate the reciprocating movement of driving assembly in horizontal direction, adjust the tightness of steel wire rope, change the static load of the ladder, so as to obtain the test data of different ladders under different static load, improve the precision of test result.

[0025] 4. The utility model provides a whole static load test device of ladder, and the transposition subassembly of design includes the bottom plate under the support subassembly, is provided with the third connecting block at the both sides of bottom plate, is provided with the transposition hole on the bottom plate, is provided with the limiting support for limiting the position of steel wire rope on the transposition hole, is provided with the first limit axle in the limiting support, and the second bolt is connected between the first limit axle and limiting support, the limiting support of this transposition subassembly design can pass through the position of the bottom end insertion transposition hole of moving limiting support, adjust the stretching angle of steel wire rope, so as to test the deformation, rupture etc. of ladder at different positions, help to improve the work efficiency of measurement. ACCURACY

[0026] Figure 1 It is the first perspective drawing of the utility model of a whole static load test device of ladder before stretching out and in;

[0027] Figure 2 It is the second perspective drawing of the utility model of a whole static load test device of ladder before stretching out and in;

[0028] Figure 3 It is the first perspective drawing of the utility model of a whole static load test device of ladder after stretching out and in;

[0029] Figure 4 It is the second perspective drawing of the utility model of a whole static load test device of ladder after stretching out and in;

[0030] Figure 5 It is the plan view of the utility model of a whole static load test device of ladder after stretching out and in;

[0031] Figure 6 It is the first perspective drawing of the driving assembly of the utility model of a whole static load test device of ladder;

[0032] Figure 7 is a second perspective view of the driving assembly of the whole static load test device for a ladder;

[0033] Figure 8 is a structural view of the test assembly of the whole static load test device for a ladder;

[0034] Figure 9 is a structural view of the transposition assembly of the whole static load test device for a ladder;

[0035] Figure 10 is a top view of the transposition assembly of the whole static load test device for a ladder;

[0036] Figure 11 is a structural view of the fixing assembly of the whole static load test device for a ladder.

[0037] Corresponding component names of various reference numerals in the drawings are as follows: 1, support assembly; 101, control box; 102, upper slide ladder; 103, lower slide ladder; 104, driving assembly; 1041, oil cylinder; 1042, piston rod; 1043, truss; 1044, first connecting block; 1045, connecting rod; 1046, through hole; 105, supporting wheel; 106, pulley; 107, slide rail; 108, switch; 109, supporting rod; 110, supporting frame; 2, test assembly; 201, ladder; 202, second connecting block; 203, pressure sensor; 204, lifting ring; 205, hook; 3, transposition assembly; 301, bottom plate; 302, transposition hole; 303, third connecting block; 304, first bolt; 305, limiting support; 306, first limiting shaft; 307, second bolt; 4, fixing assembly; 401, base; 402, fixing support; 403, first connecting ring; 404, second connecting ring; 405, connecting support; 406, second limiting shaft; 407, third bolt; 5, steel wire rope. DETAILED DESCRIPTION

[0038] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0039] Following, the advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the specification. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. The present application can also be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0040] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings provided herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that an aspect can be implemented both as any number of software and / or hardware configurations. For example, an aspect can be implemented as a computing device, software, firmware, or combination thereof operated on proper hardware.

[0041] It should also be noted that the figures provided in the following embodiments are only schematically illustrate the basic idea of the present application, and only the components related to the present application are shown in the figures, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be a random change in shape, number and proportion, and the layout of the components can be more complex.

[0042] In addition, in the following description, specific details are provided in order to facilitate a thorough understanding of the examples. However, one skilled in the art will understand that the application can be practiced without these specific details.

[0043] The technical solutions provided by the embodiments of the present application are described below in conjunction with the drawings.

[0044] Referring to Figures 1 to 11 The utility model provides a whole static load test device of ladder, in order to make the utility model practical purpose, technical scheme and advantage more clearly, below combining with the working process of the device, the specific operation process of the utility model is introduced in detail.

[0045] The utility model provides a kind of ladder whole static load test device, including support assembly 1, support assembly 1 is provided with test assembly 2, support assembly 1 is provided with drive assembly 104, the below of support assembly 1 is provided with transposition component 3 and fixed component 4 respectively, steel wire rope 5 is connected between test assembly 2 and drive assembly 104;

[0046] Support assembly 1 includes control box 101 located in test assembly 2 side, the above of control box 101 is provided with switch 108, the side of control box 101 is provided with support frame 110, support frame 110 is provided with slide rail 107, slide rail 107 is provided with pulley 106, slide rail 107 is provided with upper slide ladder 102 and lower slide ladder 103 respectively;

[0047] Drive assembly 104 includes connecting rod 1045 connected with control box 101, one end of connecting rod 1045 is connected with truss 1043, one side of truss 1043 is provided with oil cylinder 1041, the inside of oil cylinder 1041 is provided with piston rod 1042, one end of piston rod 1042 is connected with first connecting block 1044;

[0048] Test assembly 2 includes ladder 201 located in the above of support frame 110, ladder 201 is provided with second connecting block 202, the inside of second connecting block 202 is provided with pressure sensor 203, the below of second connecting block 202 is provided with lifting ring 204, lifting ring 204 is connected with hook 205;

[0049] Transposition component 3 includes bottom plate 301 located in the below of support assembly 1, the both sides of bottom plate 301 are provided with third connecting block 303, bottom plate 301 is provided with transposition hole 302, transposition hole 302 is provided with limiting support 305, limiting support 305 is provided with first limiting shaft 306 in, second bolt 307 is connected between first limiting shaft 306 and limiting support 305.

[0050] Referring to Figures 1 to 11 , fixed component 4 includes base 401, base 401 is provided with fixed support 402, fixed support 402 is provided with first connecting ring 403 in, one side of first connecting ring 403 is connected with second connecting ring 404, one side of second connecting ring 404 is provided with connecting support 405, connecting support 405 is provided with second limiting shaft 406 in, third bolt 407 is connected between connecting support 405 and second limiting shaft 406.

[0051] Referring to Figures 1 to 4 , upper slide ladder 102 and lower slide ladder 103 are slidingly connected, pulley 106 and slide rail 107 are slidingly connected.

[0052] Referring to Figures 1 to 7The first connecting block 1044 of the driving assembly 104 is provided with through holes 1046, the axis of the connecting rod 1045 is parallel to the axis of the piston rod 1042, the axis of the oil cylinder 1041 is on the same straight line with the axis of the piston rod 1042, the axis of the slide rail 107 is parallel to the axis of the connecting rod 1045, and the plurality of pulleys 106 are symmetrically arranged relative to the slide rail 107.

[0053] Referring to Figures 1 to 10 The transposition holes 302 are provided with a plurality of transposition holes 302, and the plurality of transposition holes 302 are arranged at equal intervals. The first limiting shaft 306 is located at the center of symmetry of the limiting support 305, and the first limiting shaft 306 is detachably connected with the limiting support 305.

[0054] The working principle and specific working process of the whole static load test device of the ladder are as follows:

[0055] Install the whole static load test device of the ladder 201, fix the position of the support wheel 105 below the support rod 109, turn on the switch 108 on the control box 101, start the control box 101, and then drive the pulley 106 to slide on the slide rail 107 of the support frame 110, so that the upper sliding ladder 102 moves above the lower sliding ladder 103, and the length of the upper sliding ladder 102 is adjusted according to actual needs, so as to facilitate the static load performance test of the ladder 201 with different lengths;

[0056] Fix the ladder 201 to be tested on the upper sliding ladder 102 above the support frame 110, ensure that the ladder 201 is stable and connected stably with the first connecting block 1044, hang one end of the steel wire rope 5 on the hook 205 below the lifting ring 204, pass the other end of the steel wire rope 5 through the first limiting shaft 306 of the transposition assembly 3 fixed by the first bolt 304, and connect the leading end to the through hole 1046 on the first connecting block 1044 of the driving assembly 104 through the second limiting shaft 406 of the fixing assembly 4.

[0057] The driving assembly 104 controls the extension and retraction of the connecting rod 1045 through the control box 101, and the extension and retraction of the connecting rod 1045 drives the truss 1043 connected thereto to move in the horizontal direction, thereby driving the oil cylinder 1041 installed in the truss 1043 to move, and the oil cylinder 1041 drives the piston rod 1042 to move. Since one end of the piston rod 1042 is connected to the first connecting block 1044, a through hole 1046 connected with the steel wire rope 5 is arranged on the first connecting block 1044. During the test, the position of the steel wire rope 5 connected through the connecting block can be adjusted according to actual needs, and the tightness of the steel wire rope 5 is adjusted by cooperating with the reciprocating movement of the driving assembly 104 in the horizontal direction, so as to change the static load applied to the ladder 201, so as to obtain the test data of the ladder 201 under different static loads, and improve the accuracy of the test results.

[0058] During the application of different static loads, the deformation of the ladder 201 and the reading of the pressure sensor 203 are monitored in real time. After the static load reaches the designed maximum value, all the data are recorded, and whether the ladder 201 is deformed or damaged under the maximum static load is observed.

[0059] In the specification, the same or similar parts among various embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0060] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for testing the static load of a ladder as a whole, characterized in that, Including support assembly (1), test assembly (2) is arranged on the support assembly (1), drive assembly (104) is arranged in the support assembly (1), transposition assembly (3) and fixed assembly (4) are respectively arranged below the support assembly (1), the steel wire rope (5) is connected between the test assembly (2) and the drive assembly (104); The support assembly (1) includes a control box (101) on one side of the test assembly (2), a switch (108) is arranged above the control box (101), a support frame (110) is arranged on one side of the control box (101), a slide rail (107) is arranged on the support frame (110), a pulley (106) is arranged on the slide rail (107), and an upper slide (102) and a lower slide (103) are respectively arranged on the slide rail (107); The drive assembly (104) includes a connecting rod (1045) connected with the control box (101), one end of the connecting rod (1045) is connected with a truss (1043), one side of the truss (1043) is provided with an oil cylinder (1041), the oil cylinder (1041) is provided with a piston rod (1042) in the inside, and one end of the piston rod (1042) is connected with a first connecting block (1044); The test assembly (2) includes a ladder (201) above the support frame (110), the ladder (201) is provided with a second connecting block (202), the second connecting block (202) is provided with a pressure sensor (203) in the inside, the second connecting block (202) is provided with a lifting ring (204) below, and the lifting ring (204) is connected with a hook (205); The transposition assembly (3) includes a bottom plate (301) below the support assembly (1), the bottom plate (301) is provided with a third connecting block (303) on both sides, the bottom plate (301) is provided with a transposition hole (302), the transposition hole (302) is provided with a limiting support (305), the limiting support (305) is provided with a first limiting shaft (306) in the inside, and the first limiting shaft (306) and the limiting support (305) are connected with a second bolt (307).

2. The overall static load testing device for a ladder according to claim 1, characterized in that: The fixed assembly (4) includes a base (401), the base (401) is provided with a fixed support (402), the fixed support (402) is provided with a first connecting ring (403) in the inside, one side of the first connecting ring (403) is connected with a second connecting ring (404), one side of the second connecting ring (404) is provided with a connecting support (405), the connecting support (405) is provided with a second limiting shaft (406) in the inside, and the connecting support (405) and the second limiting shaft (406) are connected with a third bolt (407).

3. The overall static load testing device for a ladder according to claim 1, wherein: The upper slide (102) and the lower slide (103) are connected in sliding mode, and the pulley (106) and the slide rail (107) are connected in sliding mode.

4. The overall static load testing device for a ladder according to claim 1, wherein: The first connecting block (1044) of the driving assembly (104) is provided with a through hole (1046), and the through hole (1046) is provided with a plurality of.

5. The overall static load testing device for a ladder according to claim 1, wherein: The axis of the connecting rod (1045) is parallel to the axis of the piston rod (1042), and the axis of the oil cylinder (1041) is on the same straight line as the axis of the piston rod (1042).

6. The overall static load testing device for a ladder according to claim 1, wherein: The axis of the sliding rail (107) is parallel to the axis of the connecting rod (1045), the pulley (106) is provided with a plurality of, and a plurality of the pulley (106) is symmetrically arranged relative to the sliding rail (107).

7. The overall static load testing device of claim 1, wherein: The transposition hole (302) is provided with a plurality of, and a plurality of the transposition hole (302) is equally spaced.

8. The overall static load testing device of claim 1, wherein: The first limiting shaft (306) is located at the center of symmetry of the limiting support (305), and the first limiting shaft (306) is detachably connected with the limiting support (305).

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