Device for drop test of battery of more than 50kg

Abstract

The utility model provides a device for a drop test of a battery of more than 50kg, which comprises a frame, a lifting rope rotating shaft is rotatably arranged in the middle of the upper end of the frame, a winch is arranged in the middle of one side of the frame, a lifting rope is bundled on the winch, one end of the lifting rope bypasses the lifting rope rotating shaft and is fixedly connected with a lifting hook, the lifting hook comprises a hook body, and the hook body is fixedly connected with the lifting rope. The upper end of the hook body is fixedly connected with a lifting rope, an opening is formed in the middle of the lower portion of the hook body, a wrench and a hook are contained in the opening, one end of the wrench is rotationally connected with the hook body, and the upper end face of the hook is an inclined face and forms an acute-angle tip. The wrench is in a horizontal state, a hanging rod is arranged on one side of the middle of the hook, and one side of the middle of the hook is rotationally connected with the hook body. According to the invention, the falling height and the impact position of each time can be consistent, and the accuracy of the subsequent test result and the safety of the detection operation process are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery test, in particular to a device for 50kg or more battery drop test. BACKGROUND

[0002] Battery drop test needs to place the battery at a specified height and then free fall to the concrete ground to test the impact resistance of the battery. The test has certain requirements for the initial height of the battery drop and the accuracy of the part of the battery impacted. When testing multiple batteries of the same model, the test requires high consistency. The present application provides a detection device that meets the drop test requirements, is simple to use, and has low cost. SUMMARY

[0003] To solve the above problems, the present application discloses a device for 50kg or more battery drop test, which comprises a frame, a hanging rope shaft is rotatably arranged at the middle of the upper end of the frame, a winch is arranged at the middle of one side of the frame, a hanging rope is bundled on the winch, one end of the hanging rope passes around the hanging rope shaft and is fixedly connected with a hook. The battery is connected to the hook by a rope, then the winch is rotated to bundle the hanging rope, and the battery is lifted to the required height for drop test.

[0004] The hook comprises a hook body, the upper end of the hook body is fixedly connected with the hanging rope, an opening is arranged at the middle of the lower part of the hook body, and a wrench and a hook are accommodated in the opening, one end of the wrench is rotatably connected with the hook body, the upper end surface of the hook is an inclined surface and forms a sharp corner tip, when the sharp corner tip is matched in the recessed groove in the middle of the wrench, the wrench is in a horizontal state, a hanging rod is arranged at one side of the middle of the hook, and the one side of the middle of the hook is rotatably connected with the hook body. During drop test, the wrench is upwardly rotated, so that the sharp corner tip at the upper end of the hook is separated from the recessed groove in the middle of the wrench, at this time, the upper part of the hook is not limited, and under the weight of the battery, the hook is deflected, the rope on the battery slides off the hanging rod, that is, the battery falls.

[0005] Preferably, the other end of the wrench is fixedly connected with a pull rope. Since the battery test has certain safety, the wrench is cocked from a distance through the pull rope, to ensure the personal safety of the tester.

[0006] Preferably, a scale is hung at the middle rear of the frame. The scale is used to indicate the drop height, to facilitate the rapid test.

[0007] Preferably, a latch is inserted in the middle of the frame, a rotating disc is fixedly connected with the end of the rotating shaft in the winch, and the latch extends into the rotating disc. The rotating disc comprises a ring and a radial rod, and the latch blocks the radial rod. After the height of the battery is lifted, the latch extends into the rotating disc to maintain the height of the battery.

[0008] The beneficial effects of the present application are as follows:

[0009] 1、The hook adopted includes wrench, hook and other components, can be triggered and unhooked quickly, ensures the smooth progress of the test, and the wrench can be triggered remotely through the pull rope, ensuring the safety during the test process.

[0010] 2、The scale, winch, turntable and bolt are arranged, ensuring that the battery is easily lifted to a specified height for holding, and ensuring the smooth progress of the test. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0012] Fig. 2 It is a schematic diagram of the hoisting state of the hook of the present application;

[0013] Fig. 3 It is a schematic diagram of the unhooking state of the hook of the present application.

[0014] LIST OF REFERENCE NUMBERS:

[0015] 1-1, frame; 1-2, bolt; 1-3, winch; 1-4, turntable; 1-5, hoisting rope shaft; 1-6, pull rope; 1-7, hoisting rope; 1-8, hook; 1-9, scale; 2-1, hook body; 2-2, wrench; 2-3, hook. DETAILED DESCRIPTION

[0016] The present application will be further illustrated below in conjunction with the drawings and specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the present application and not to limit the scope of the present application. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular component.

[0017] As shown in Figs. 1 to 3 A device for battery drop test of more than 50 kg, including a frame 1-1, the frame 1-1 is a gantry, and the bottom of the frame 1-1 is provided with horizontal rod members and inclined rods to improve the stability of the frame 1-1, and a hoisting rope shaft 1-5 is rotatably arranged at the upper middle part of the frame 1-1, a winch 1-3 is arranged at the middle part of one side of the frame 1-1, the hoisting rope 1-7 is wound on the winch 1-3, one end of the hoisting rope 1-7 passes through the hoisting rope shaft 1-5 and is fixedly connected with a hook 1-8, during the test, the battery is bound with a rope, which is hung on the hook 1-8 through the rope, at this time the winch 1-3 is operated to wind the hoisting rope 1-7 to lift the battery to the height of the drop test.

[0018] The hook 1-8 comprises a hook body 2-1, which is a block piece and has a lower middle part removed, and the upper end of the hook body 2-1 is fixedly connected with the lifting rope 1-7, the upper part of the hook body 2-1 is provided with a through hole for connection, and the lower middle part of the hook body 2-1 is provided with an opening, and the opening is provided with a wrench 2-2 and a hook 2-3, one end of the wrench 2-2 is rotatably connected with the hook body 2-1, the upper end surface of the hook 2-3 is a bevel and forms a sharp corner tip, when the sharp corner tip is matched in the recess provided in the middle part of the wrench 2-2, the wrench 2-2 is in a horizontal state, the middle part of the hook 2-3 is provided with a hanging rod, and the middle part of the hook 2-3 is rotatably connected with the hook body 2-1. During testing, the rope bound on the battery is hung on the hanging rod, when the battery rises to the falling height, the wrench 2-2 is rotated, so that the sharp corner tip is separated from the recess, under the pressure of the battery, the hook 2-3 is deflected and separated from the rope, and the battery falls downward.

[0019] The other end of the wrench 2-2 is fixedly connected with a pull rope 1-6. By arranging the pull rope 1-6, the hook can be triggered remotely, so that the tester can keep a safe distance.

[0020] The middle part of the frame 1-1 is provided with a scale 1-9. The scale 1-9 is used to indicate the falling height of the battery.

[0021] A latch 1-2 is arranged in the middle part of the frame 1-1 and can move horizontally forward and backward, the end of the rotating shaft of the winch 1-3 is fixedly connected with a rotating disc 1-4, and the latch 1-2 extends into the rotating disc 1-4. When the battery is lifted to the specified height, the latch 1-2 is inserted into the rotating disc 1-4 to limit the rotation, so as to maintain the test height of the battery.

[0022] The technical means disclosed in the scheme of the application is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features.

Claims

1. An apparatus for a 50 kg or more battery drop test, characterized by, Including frame (1-1), the upper end of the frame (1-1) is rotatably provided with a rope shaft (1-5), one side of the frame (1-1) is provided with a winch (1-3), the winch (1-3) is provided with a rope (1-7), one end of the rope (1-7) is wound around the rope shaft (1-5), and a hook (1-8) is fixedly connected; The hook (1-8) includes a hook body (2-1), the upper end of the hook body (2-1) is fixedly connected with the rope (1-7), the lower middle part of the hook body (2-1) is provided with an opening, the wrench (2-2) and the hook (2-3) are accommodated in the opening, one end of the wrench (2-2) is rotatably connected with the hook body (2-1), the upper end surface of the hook (2-3) is an inclined surface and forms an acute angle tip, when the acute angle tip is matched in the recess in the middle part of the wrench (2-2), the wrench (2-2) is in a horizontal state, the middle part of the hook (2-3) is provided with a hanging rod, and the middle part of the hook (2-3) is rotatably connected with the hook body (2-1).

2. A device for drop testing a battery of 50 kg or more according to claim 1, characterized in that: The other end of the wrench (2-2) is fixedly connected with a pull rope (1-6).

3. The apparatus for drop testing a battery of 50 kg or more according to claim 1, wherein: The middle part of the frame (1-1) is provided with a ruler (1-9).

4. The apparatus for drop testing a battery of 50 kg or more according to claim 1, wherein: The middle part of the frame (1-1) is provided with a bolt (1-2), and the shaft end of the winch (1-3) is fixedly connected with a rotating disc (1-4). The bolt (1-2) extends into the rotating disc (1-4).

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