Static load test device for horizontal strength of ladder

Abstract

The utility model relates to the technical field of ladder horizontal strength testing devices, and particularly discloses a ladder horizontal strength static load testing device which comprises a supporting assembly, a testing assembly arranged on the supporting assembly, a limiting assembly and a fixing assembly arranged below the supporting assembly respectively, a driving assembly arranged on one side of the supporting assembly, and a clamping assembly arranged on the other side of the supporting assembly. The supporting assembly comprises supporting frames located on the two sides of the limiting assembly, the supporting frames are provided with ladders, and hinges are arranged between the supporting frames and the ladders; the operating rod is arranged on the testing assembly, the hanging ring is arranged below the operating rod, the pressure sensor is arranged in the operating rod, and the hook is arranged below the hanging ring, so that the testing device is simple in overall structure and convenient to install and use, and a worker can conveniently test the horizontal strength static load of the ladder; and the accuracy of a test result and the automation degree of operation can be improved.

Description

TECHNICAL FIELD

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

[0002] Ladder horizontal strength static load test is to test the ability of ladder to withstand static load in horizontal placement state, to ensure that ladder can not be deformed, damaged or unstable when bearing horizontal load, to ensure the safety in use.

[0003] Ladder horizontal strength test device mainly includes:1.loading system: for applying horizontal load. The size of load can be accurately controlled by hydraulic, mechanical or electric system;2.support platform: usually used to fix ladder and ensure its horizontal placement, to prevent unnecessary inclination or movement during testing;3.force sensor: for real-time monitoring and recording the applied load, to ensure that the weight applied meets the test requirements.4.evaluation results: record the maximum load borne by ladder and its deformation under the load, evaluate the performance of ladder according to the deformation limit value and load requirement specified in the standard.

[0004] The existing ladder horizontal strength test device has the following technical problems:1.insufficient test accuracy: if the accuracy of test device is not high, the test result may be inaccurate, and the horizontal strength of ladder under static load cannot be accurately evaluated;2.unreasonable loading method: the design of loading method may affect the effectiveness of test results (such as uneven load application, local concentration or excessive concentration) ;3.low degree of automation: in some test devices, the degree of automation is low, and test personnel may need to make too much manual adjustment and operation, resulting in non-standard operation and poor test repeatability. UTILITY MODEL CONTENTS

[0005] (I) Technical problem to be solved

[0006] In view of the above problems, the utility model provides a ladder horizontal strength static load test device, especially a test device for ladder horizontal strength in static load test process, to solve the problems of insufficient test accuracy, unreasonable loading method and low degree of automation existing in current ladder horizontal strength test device.

[0007] (II) Technical scheme

[0008] To solve the technical problem, the utility model provides a ladder horizontal strength static load test device, including support assembly, test assembly is arranged on the support assembly, limit assembly and fixed assembly are arranged below the support assembly respectively, drive assembly is arranged on one side of the support assembly;

[0009] The limiting assembly comprises a bottom plate located below the supporting assembly, a limiting hole is arranged on the bottom plate, fixing blocks are arranged on both sides of the bottom plate, a limiting support is arranged on the limiting hole, a first limiting shaft is arranged in the limiting support, and a second bolt is connected between the first limiting shaft and the limiting support.

[0010] The fixing assembly comprises a base, a support is arranged on the base, a fixing ring is arranged in the support, a first connecting ring is connected to the fixing ring, a fixing support is connected to one side of the first connecting ring, a second limiting shaft is arranged in the fixing support, and a third bolt is connected between the fixing support and the second limiting shaft.

[0011] The driving assembly comprises an oil cylinder located on one side of the supporting assembly, an ear is arranged above the oil cylinder, a piston rod is connected in the oil cylinder, and a second connecting ring is connected below the piston rod.

[0012] Further, the supporting assembly comprises supporting frames located on both sides of the limiting assembly, ladders are arranged on the supporting frames, and hinges are arranged between the supporting frames and the ladders.

[0013] Further, the test assembly comprises operating rods located on the ladders, lifting rings are arranged below the operating rods, pressure sensors are arranged in the operating rods, and hooks are arranged below the lifting rings.

[0014] Further, the hinges are arranged in multiple, screws are connected between the multiple hinges and the ladders, the supporting frames are arranged in multiple, and the multiple supporting frames are symmetrically arranged relative to the limiting assembly.

[0015] Further, the limiting holes of the limiting assembly are arranged in multiple, and the multiple limiting holes are arranged at equal intervals.

[0016] Further, a steel wire rope is connected to the hook of the test assembly, and a connecting block is arranged at one end of the steel wire rope.

[0017] Further, the bottom of the limiting support is located in the limiting hole, and the first limiting shaft is located at the center of symmetry of the limiting support.

[0018] Further, the connecting block is located between the steel wire rope and the second connecting ring, and the axis of the piston rod is perpendicular to the axis of the second connecting ring.

[0019] Advantages

[0020] 1. The utility model provides a kind of ladder horizontal strength static load test device, the ladder horizontal strength static load test device, test component is provided on support assembly, limit component and fixed component are separately provided below support assembly, drive component is provided in the side of support assembly, support assembly includes the support frame located in the both sides of limit component, ladder is provided on support frame, hinge is provided between support frame and ladder;Operating lever is set on test component, lifting ring is provided below operating lever, pressure sensor is arranged in the inside of operating lever, hook is provided below lifting ring, the overall structure of this ladder horizontal strength static load test device is simple, easy to install and use, and it is convenient for staff to carry out the horizontal strength test of ladder under static load.

[0021] 2. The utility model provides a kind of ladder horizontal strength static load test device, the limit component designed by the ladder horizontal strength static load test device, the limit component includes the bottom plate located below support assembly, limit hole is provided on the bottom plate, fixed block is provided on the both sides of bottom plate, limit support is provided on limit hole, first limit shaft is arranged in the inside of limit support, second bolt is connected between first limit shaft and limit support;During the test process of the horizontal strength of ladder, the position of limit support low end insertion limit hole can be adjusted to change the state of static load horizontal strength test of ladder, so as to test the performance of horizontal strength of ladder under different static load, provide more accurate data reference for staff, prevent deformation, instability etc. of ladder in use process, improve the safety of ladder use.

[0022] 3. The utility model provides a kind of ladder horizontal strength static load test device, the fixed component designed by the ladder horizontal strength static load test device, including the base on ground, support is provided on the base, fixed ring is arranged in the inside of support, first connecting ring is connected on the side of fixed ring, third bolt is connected between fixed support and second limit shaft;Steel wire rope is threaded through the hook below test component, then threaded through first limit shaft on limit component, the steel wire rope led out by first limit shaft, threaded through second limit shaft on the side of fixed component, then led out by second limit shaft, connected to second connecting ring below drive component, and the end of steel wire rope is fixed with connecting block, prevent steel wire from falling off in test process, the design of this fixed component, it is helpful to make steel wire rope more stablely connect hook and the second connecting ring of drive component, so as to guarantee the accuracy of test structure, in addition, the design of this drive component, by oil cylinder drive piston rod, the second connecting ring connected can reciprocate in vertical direction, without manually changing the position of steel wire rope, so as to improve the automation degree of the test device operation. DRAWINGS

[0023] Figure 1The first perspective view of the horizontal strength static load test device of the ladder tool,

[0024] Figure 2 The second perspective view of the horizontal strength static load test device of the ladder tool,

[0025] Figure 3 The third perspective view of the horizontal strength static load test device of the ladder tool,

[0026] Figure 4 The first perspective view of the limiting assembly of the horizontal strength static load test device of the ladder tool,

[0027] Figure 5 The second perspective view of the limiting assembly of the horizontal strength static load test device of the ladder tool,

[0028] Figure 6 The top view of the limiting assembly of the horizontal strength static load test device of the ladder tool,

[0029] Figure 7 The fixed assembly structure diagram of the horizontal strength static load test device of the ladder tool,

[0030] Figure 8 The driving assembly structure diagram of the horizontal strength static load test device of the ladder tool,

[0031] Figure 9 The test assembly structure diagram of the horizontal strength static load test device of the ladder tool.

[0032] The corresponding component names of various reference signs in the figure are: 1, support assembly; 101, ladder tool; 102, support frame; 103, hinge; 104, screw; 2, test assembly; 201, operating rod; 202, pressure sensor; 203, lifting ring; 204, hook; 3, limiting assembly; 301, bottom plate; 302, fixed block; 303, first bolt; 304, limiting hole; 305, first limiting shaft; 306, limiting support; 307, second bolt; 4, fixed assembly; 401, support; 402, base; 403, fourth bolt; 404, fixed ring; 405, first connecting ring; 406, fixed support; 407, second limiting shaft; 408, third bolt; 5, driving assembly; 501, piston rod; 502, second connecting ring; 503, oil cylinder; 504, lug; 6, steel wire rope; 7, connecting block. DETAILED DESCRIPTION

[0033] The present application is described in detail below in combination with the drawings and specific embodiments.

[0034] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0036] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0038] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0039] See Figures 1 to 9 This utility model provides a static load testing device for the horizontal strength of ladders. In order to make the practical purpose, technical solution and advantages of this utility model clearer, the specific operation process of this utility model will be described in detail below with reference to the accompanying drawings and the working process of this device.

[0040] The utility model provides a kind of ladder horizontal strength static load test device, including support assembly 1, support assembly 1 is provided with test assembly 2, the below of support assembly 1 is separately provided with limiting component 3 and fixed component 4, one side of support assembly 1 is provided with drive component 5;

[0041] Limiting component 3 includes the bottom plate 301 located below support assembly 1, the bottom plate 301 is provided with the limiting hole 304, the both sides of bottom plate 301 are provided with fixed block 302, the limiting hole 304 is provided with limiting support 306, the first limiting shaft 305 is arranged in limiting support 306, and the second bolt 307 is connected between the first limiting shaft 305 and limiting support 306;

[0042] Fixed component 4 includes base 402, the base 402 is provided with support 401, the support 401 is provided with fixed ring 404, the fixed ring 404 is connected with first connecting ring 405, one side of first connecting ring 405 is connected with fixed support 406, the second limiting shaft 407 is arranged in fixed support 406, and the fourth bolt 403 is connected between fixed support 406 and second limiting shaft 407;

[0043] Drive component 5 includes the oil cylinder 503 located at one side of support assembly 1, the oil cylinder 503 is provided with lug 504 above, the piston rod 501 is connected in the oil cylinder 503, and the second connecting ring 502 is connected below the piston rod 501.

[0044] Referring to Figures 1 to 6 , support assembly 1 includes support frame 102 located at both sides of limiting component 3, support frame 102 is provided with ladder 101, hinge 103 is arranged between support frame 102 and ladder 101, hinge 103 is provided with multiple, the screw 104 is connected between multiple hinge 103 and ladder 101, support frame 102 is provided with multiple, multiple support frame 102 is symmetrically arranged relative to limiting component 3, the limiting hole 304 of limiting component 3 is provided with multiple, multiple limiting hole 304 is arranged at equal intervals, the bottom of limiting support 306 is located in limiting hole 304, and the first limiting shaft 305 is located at the symmetry center of limiting support 306.

[0045] Referring to Figures 1 to 9 , test assembly 2 includes operating lever 201 located on ladder 101, the lifting ring 203 is arranged below operating lever 201, the pressure sensor 202 is arranged in operating lever 201, the hook 204 is arranged below lifting ring 203, the hook 204 of test assembly 2 is connected with steel wire rope 6, and one end of steel wire rope 6 is provided with connecting block 7.

[0046] Referring to Figures 1 to 8The connecting block 7 is located between the steel wire rope 6 and the second connecting ring 502, and the axis of the piston rod 501 is perpendicular to the axis of the second connecting ring 502.

[0047] The working principle and specific working process of the horizontal strength static load test device of the ladder are as follows: according to the structural design of the horizontal strength static load test device of the ladder 101, the ladder 101 is placed on the support frame 102 of the support assembly 1 to ensure its horizontal stability, the test assembly 2 is placed on the ladder 101, the bottom plate 301 of the limiting assembly 3 is fixed to the ground through the first bolt 303, and the base 402 of the fixing assembly 4 is fixed to the ground through the fourth bolt 403, one end of the steel wire rope 6 is hung on the hook 204 below the operating rod 201 of the test assembly 2, the other end of the steel wire rope 6 is threaded through the first limiting shaft 305 of the limiting assembly 3, the wire drawn out from the lower end of the first limiting shaft 305 is connected to the second limiting shaft 407 connected to the fixed support 406 through the third bolt 408, the steel wire rope 6 drawn out from the bottom end of the second limiting shaft 407 is connected to the second connecting ring 502 below the driving assembly 5, and the connecting block 7 is used to fix the end of the steel wire rope 6 to prevent the steel wire rope 6 from falling off during the test;

[0048] After the connection is completed, the oil cylinder 503 of the driving assembly 5 is started, the oil cylinder 503 moves to drive the piston rod 501 to move up and down, so as to tension the steel wire rope 6 connected with the second connecting ring 502, and continue to pull the steel wire rope 6, at the same time, the performance data of the ladder 101 under static load is obtained by using the pressure sensor 202, different sizes of static load are gradually applied through the driving assembly 5, until the ladder 101 appears damage or unsafe signs. By changing the position of the limiting seat 306 of the limiting assembly 3 inserted into the limiting hole 304, the horizontal strength performance of the ladder 101 in different states can be tested, and multiple tests can ensure the accuracy of the test results;

[0049] According to the change of the static load applied to the ladder 101, the deformation amount and possible damage or failure of the ladder 101 are recorded, and the carrying capacity, strength and stability of the ladder 101 are evaluated according to the test results, to check whether it meets the relevant safety standards and specifications.

[0050] 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.

[0051] The above is only a specific implementation 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 scope disclosed in the present application, which should be covered in 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 ladder horizontal strength static load test apparatus, characterized by, Including support assembly (1), test assembly (2) is arranged on the support assembly (1), the lower side of the support assembly (1) is respectively provided with limiting assembly (3) and fixed assembly (4), one side of the support assembly (1) is provided with drive assembly (5); The limiting assembly (3) includes the bottom plate (301) located below the support assembly (1), the limiting hole (304) is arranged on the bottom plate (301), the both sides of the bottom plate (301) are provided with fixed block (302), the limiting support (306) is arranged on the limiting hole (304), the first limiting shaft (305) is arranged in the limiting support (306), and the second bolt (307) is connected between the first limiting shaft (305) and the limiting support (306). The fixed assembly (4) includes the base (402), the support (401) is arranged on the base (402), the fixed ring (404) is arranged in the support (401), the first connecting ring (405) is connected with the fixed ring (404), one side of the first connecting ring (405) is connected with the fixed support (406), the second limiting shaft (407) is arranged in the fixed support (406), and the fourth bolt (403) is connected between the fixed support (406) and the second limiting shaft (407). The drive assembly (5) includes the oil cylinder (503) located on one side of the support assembly (1), the hanging ear (504) is arranged above the oil cylinder (503), the piston rod (501) is connected in the oil cylinder (503), and the second connecting ring (502) is connected below the piston rod (501).

2. The horizontal strength static load testing device for a ladder as defined in claim 1, wherein: The support assembly (1) includes the support frame (102) located on both sides of the limiting assembly (3), the ladder (101) is arranged on the support frame (102), and the hinge (103) is arranged between the support frame (102) and the ladder (101).

3. The horizontal strength static load testing device for a ladder as defined in claim 2, wherein: The test assembly (2) includes the operating rod (201) located on the ladder (101), the lifting ring (203) is arranged below the operating rod (201), the pressure sensor (202) is arranged in the operating rod (201), and the hook (204) is arranged below the lifting ring (203).

4. The horizontal strength static load testing device for a ladder as defined in claim 2, wherein: The hinge (103) is provided with a plurality of screws (104) connected between the hinge (103) and the ladder (101), and the support frame (102) is provided with a plurality of support frames (102) arranged symmetrically relative to the limiting assembly (3).

5. The horizontal strength static load testing device of a ladder according to claim 1, wherein: The limiting hole (304) of the limiting assembly (3) is provided with a plurality of limiting holes (304), and the plurality of limiting holes (304) are arranged at equal intervals.

6. The horizontal strength static load testing device of a ladder according to claim 3, wherein: The hook (204) of the test assembly (2) is connected with the steel wire rope (6), and one end of the steel wire rope (6) is provided with the connecting block (7).

7. The horizontal strength static load testing device of a ladder as recited in claim 1, wherein: The bottom of the limiting support (306) is located in the limiting hole (304), and the first limiting shaft (305) is located at the symmetry center of the limiting support (306).

8. The horizontal strength static load testing device of a ladder according to claim 6, wherein: The connecting block (7) is located between the steel wire rope (6) and the second connecting ring (502), and the axis of the piston rod (501) is perpendicular to the axis of the second connecting ring (502).

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