Herringbone ladder tension limiting static load test device

Abstract

The utility model relates to the technical field of static load test devices, in particular to a herringbone ladder tension limiting static load test device, which comprises a herringbone ladder, a herringbone frame and a test assembly, and is characterized in that two tension limiting mechanisms are symmetrically arranged on the herringbone ladder and are positioned on two sides of the herringbone ladder; the testing assembly comprises a hook, a connecting ring, a steel wire rope, a base and a pulley, the hook is arranged in the middle of one side of the herringbone ladder, the connecting ring is detachably connected to the hook, and the steel wire rope is detachably connected to the connecting ring. According to the utility model, the static load capacity of the tension limiting mechanism of the herringbone ladder can be accurately measured, the safety of the herringbone ladder in use is ensured, and the situation that workers are injured due to failure of the tension limiting mechanism and excessive stretching of the ladder is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of static load testing devices, specifically to a herringbone ladder tension static load testing device. Background Technology

[0002] A-frame ladder tension limiting mechanisms are used to restrict the opening angle and position of the A-frame ladder to ensure its stability and safety during use. Static load testing equipment is a device used to test and evaluate the performance of materials, structures, or equipment under static loads. This equipment is commonly used in engineering, construction, materials science, and other fields to ensure that materials or structures can withstand the required loads during use without failure.

[0003] The existing technology still has the following areas for improvement: There are very few technologies available for testing the static load capacity of the tension limiting mechanism of an A-frame ladder, and the test results have large errors, making it impossible to accurately assess the static load capacity of the tension limiting mechanism. This leads to safety hazards when the ladder is in use. When workers use the ladder to move heavy objects, the ladder may open excessively due to the failure of the tension limiting mechanism, resulting in injury to the workers. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a static load testing device for A-frame ladders with tension limit, which can accurately measure the static load capacity of the tension limit mechanism of the A-frame ladder, ensuring the safety of the A-frame ladder during use and preventing injuries to workers due to excessive opening of the ladder caused by the failure of the tension limit mechanism.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A static load testing device for A-frame ladder under tension includes an A-frame ladder, an A-frame frame, and a testing assembly. Two sets of tension limiting mechanisms are symmetrically arranged on the A-frame ladder, with the two sets of tension limiting mechanisms located on both sides of the A-frame ladder.

[0007] The test assembly includes a hook, a connecting ring, a steel wire rope, a base, and a pulley. The hook is located in the middle of one side of the A-frame ladder. The connecting ring is detachably connected to the hook. The steel wire rope is detachably connected to the connecting ring and is slidably connected to the pulley.

[0008] Preferably, the tension limiting mechanism includes a first fixing block, a second fixing block, a first connecting block, a second connecting block, and bolts. The first fixing block and the second fixing block are respectively fixedly connected to the two sides of the A-frame ladder, the first connecting block is fixedly connected to the first fixing block, and the second connecting block is fixedly connected to the second fixing block.

[0009] Preferably, a groove is formed on the first connecting block, and a through hole is formed at one end of the groove of the first connecting block.

[0010] Preferably, the second connecting block is arranged at the groove of the first connecting block, and a through hole is formed at one end of the second connecting block.

[0011] Preferably, the through hole of the first connecting block corresponds to the through hole of the second connecting block in position, the bolt penetrates through the through holes of the first connecting block and the second connecting block, and the second connecting block is rotatably connected to the first connecting block through the bolt.

[0012] Preferably, a plurality of limiting holes are arranged on the base, and the plurality of limiting holes are arranged uniformly.

[0013] Preferably, the pulley is arranged at the limiting hole of the base.

[0014] Preferably, two A-frames are arranged, the two A-frames are respectively located on two sides of the base, and the A-ladder is arranged on the two A-frames.

[0015] The utility model has the advantages of:

[0016] (1) The test assembly is arranged, the technical effect achieved is that the hook is arranged at the middle of one side of the A-ladder, stress is applied to test the static load capacity of the tension limiting mechanism of the A-ladder, the connecting ring can be flexibly mounted and dismounted according to the length required by the connecting hook and the steel wire rope, adjustment is facilitated, the pulley is arranged at the limiting hole of the base, the pulley is accurately positioned, the stress applied in each test is ensured to be the same, test error is reduced, the static load capacity of the tension limiting mechanism of the A-ladder is accurately measured, the safety of the A-ladder in use is ensured, the situation that a worker is injured due to the failure of the tension limiting mechanism and the excessive opening of the ladder is avoided.

[0017] (2) The tension limiting mechanism and the A-frame are arranged, the technical effect achieved is that the two tension limiting mechanisms are located on two sides of the A-ladder, the effect of the tension limiting function is ensured, the safety of the A-ladder in use is improved, the second connecting block is rotatably connected to the first connecting block through the bolt, the tension limiting mechanism is rotatably matched with the opening angle of the A-ladder, the A-ladder is arranged on the two A-frames, the A-frame provides stable support for the A-ladder, and the static load test is ensured to be carried out smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the drawings.

[0019] Figure 1 It is a perspective view of the utility model;

[0020] Figure 2The front view of the utility model;

[0021] Figure 3 The right view of the utility model;

[0022] Figure 4 The plan view of the utility model;

[0023] Figure 5 The structure diagram of the tension limiting mechanism in the utility model;

[0024] Main element symbol explanation:

[0025] In the drawing: 1, double ladder; 2, tension limiting mechanism; 201, first fixed block; 202, second fixed block; 203, first connecting block; 204, second connecting block; 205, bolt; 3, double bracket; 4, hook; 5, connecting ring; 6, steel wire rope; 7, base; 8, pulley. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Reference Figures 1 to 5The utility model discloses a kind of herringbone ladder tension limiting static load test devices, it is characterized by including herringbone ladder 1, herringbone frame 3 and test assembly, two groups of tension limiting mechanisms 2 are symmetrically provided on herringbone ladder 1, two groups of tension limiting mechanisms 2 are located at the two sides of herringbone ladder 1, guarantee the effect of tension limiting function, improve the security of herringbone ladder 1 when using;

[0030] Test assembly includes hook 4, connecting ring 5, steel wire rope 6, pedestal 7 and pulley 8, hook 4 is set in the middle of one side of herringbone ladder 1, to facilitate the static load capacity of tension limiting mechanism 2 of herringbone ladder 1 is tested by applying stress, connecting ring 5 is detachably connected to hook 4, steel wire rope 6 is detachably connected to connecting ring 5, connecting ring 5 can be flexibly mounted and disassembled according to the length required by connecting hook 4 and steel wire rope 6, easy to adjust, steel wire rope 6 is slidably connected to pulley 8.

[0031] Refer to Figures 1 to 5 Tension limiting mechanism 2 includes first fixed block 201, second fixed block 202, first connecting block 203, second connecting block 204 and bolt 205, first fixed block 201 and second fixed block 202 are fixedly connected to the two sides of herringbone ladder 1 respectively, first connecting block 203 is fixedly connected to first fixed block 201, and second connecting block 204 is fixedly connected to second fixed block 202.

[0032] Refer to Figure 5 A recess is formed in first connecting block 203, and a through hole is formed in one end of the recess of first connecting block 203; second connecting block 204 is arranged at the recess of first connecting block 203, and a through hole is formed in one end of second connecting block 204; the position of the through hole of first connecting block 203 corresponds to the position of the through hole of second connecting block 204, bolt 205 penetrates the through hole of first connecting block 203 and the through hole of second connecting block 204, and second connecting block 204 is rotatably connected to first connecting block 203 through bolt 205, so as to facilitate the rotation of tension limiting mechanism 2 to match the opening angle of herringbone ladder 1.

[0033] Refer to Figures 1 to 4 A plurality of limiting holes are arranged on pedestal 7, and the plurality of limiting holes are arranged uniformly; pulley 8 is arranged at the limiting hole of pedestal 7, so as to accurately position pulley 8, ensure that the stress applied during each test is the same, reduce test error, accurately measure the static load capacity of tension limiting mechanism 2 of herringbone ladder 1, ensure the safety of herringbone ladder 1 during use, avoid the situation that workers are injured due to the failure of tension limiting mechanism 2 and the excessive opening of ladder; two herringbone frames 3 are arranged, the two herringbone frames 3 are located at the two sides of pedestal 7 respectively, herringbone ladder 1 is arranged on the two herringbone frames 3, and herringbone frame 3 provides stable support for herringbone ladder 1, so as to ensure the smooth progress of static load test.

[0034] The working principle and use process of the utility model are as follows: the ladder 1 is horizontally placed on two ladder stands 3, the position of the pulley 8 is adjusted according to the preset stress direction to be applied, the pulley 8 is installed at the corresponding limiting hole of the base 7, the hook 4 is hung at the middle of one side of the ladder 1, stress is applied to the ladder 1 through the cooperation of the pulley 8, the hook 4, the connecting ring 5, the steel wire rope 6 and the force applying equipment connected with the steel wire rope 6, the maximum opening angle of the tension limiting mechanism 2 is tested, and the static load capacity of the tension limiting mechanism 2 is evaluated.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with a preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make slight changes or modifications to the above disclosed technical content to obtain equivalent embodiments without departing from the technical solution of the utility model. Any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims

1. A device for testing the static load of a herringbone ladder under tension, characterized in that: Includes an A-frame ladder (1), an A-frame frame (3), and a testing component. Two sets of tension limiting mechanisms (2) are symmetrically arranged on the A-frame ladder (1), and the two sets of tension limiting mechanisms (2) are located on both sides of the A-frame ladder (1). The test assembly includes a hook (4), a connecting ring (5), a steel wire rope (6), a base (7), and a pulley (8). The hook (4) is located in the middle of one side of the A-frame ladder (1). The connecting ring (5) is detachably connected to the hook (4). The steel wire rope (6) is detachably connected to the connecting ring (5). The steel wire rope (6) is slidably connected to the pulley (8).

2. The A-frame ladder static load test device according to claim 1, characterized in that: The tension limiting mechanism (2) includes a first fixing block (201), a second fixing block (202), a first connecting block (203), a second connecting block (204), and a bolt (205). The first fixing block (201) and the second fixing block (202) are respectively fixedly connected to the two sides of the A-frame ladder (1). The first connecting block (203) is fixedly connected to the first fixing block (201), and the second connecting block (204) is fixedly connected to the second fixing block (202).

3. The A-frame ladder static load test device according to claim 2, characterized in that: The first connecting block (203) has a groove, and one end of the groove of the first connecting block (203) has a through hole.

4. The A-frame ladder static load test device according to claim 3, characterized in that: The second connecting block (204) is disposed in the groove of the first connecting block (203), and a through hole is provided at one end of the second connecting block (204).

5. The A-frame ladder static load test device according to claim 4, characterized in that: The position of the through hole of the first connecting block (203) corresponds to the position of the through hole of the second connecting block (204). The bolt (205) passes through the through hole of the first connecting block (203) and the through hole of the second connecting block (204). The second connecting block (204) is rotatably connected to the first connecting block (203) through the bolt (205).

6. The A-frame ladder static load test device according to claim 1, characterized in that: The base (7) is provided with a plurality of limiting holes, which are evenly distributed.

7. The A-frame ladder static load test device according to claim 6, characterized in that: The pulley (8) is located at the limiting hole of the base (7).

8. The A-frame ladder static load test device according to claim 1, characterized in that: There are two A-frames (3), which are located on both sides of the base (7), and the A-frame ladder (1) is set on the two A-frames (3).

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