A drop test device

Abstract

The utility model discloses a drop test device, including first ring, second ring and sling, first ring includes first ring body and first bolt, be provided with first opening portion on the first ring body, the first bolt is connected at first opening portion, be connected with the bearing axle on the first bolt, second ring includes second ring body and second bolt, be provided with second opening portion on the second ring body, the second bolt is connected at second opening portion, be connected with the bearing axle placing piece for with bearing axle cooperation on the second bolt, one end of sling is connected with first ring body, and the other end is connected with second ring body. The utility model provides test device cooperation with the crane can complete to small -size unit's drop test test, and the use cost is low, and can improve the test efficiency, need not to send and test.

Description

Technical Field

[0001] This utility model relates to the field of product testing auxiliary structure technology, and more specifically, to a drop test device. Background Technology

[0002] Due to their compact size and flexible deployment, the market demand for 3kW and 6kW small generator sets has been increasing year by year. Some of these generator sets need to undergo drop tests before leaving the factory to simulate accidental drops that may occur during transportation (such as forklift tipping over or loading / unloading platform slippage) and verify the impact resistance of their casing, internal components (such as engine, controller, and wiring terminals) and sealing structure.

[0003] Currently, drop tests need to be conducted using large, general-purpose drop testing machines, which is costly and inefficient. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a drop test device that can be used in conjunction with a crane to complete drop tests on small units. This device has low operating costs, can improve testing efficiency, and eliminates the need for external delivery for testing.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A drop test apparatus includes a first ring, a second ring, and a suspension rope; The first lifting ring includes a first ring body and a first bolt. The first ring body is provided with a first opening. The first bolt is connected to the first opening and a load-bearing shaft is connected to the first bolt. The second lifting ring includes a second ring body and a second bolt. The second ring body is provided with a second opening. The second bolt is connected to the second opening. A load-bearing shaft placement component for cooperating with the load-bearing shaft is connected to the second bolt. One end of the suspension rope is connected to the first ring body, and the other end is connected to the second ring body.

[0006] Furthermore, it also includes a first traction rope and a second traction rope, the first traction rope being connected to the first lifting ring, and the second traction rope being connected to the second lifting ring.

[0007] Furthermore, the load-bearing shaft includes a first ring sleeved on the first bolt and a shaft integrally formed with the first ring.

[0008] Furthermore, the load-bearing shaft placement component includes a second ring sleeved on the second bolt, the bottom of the second ring having an extension portion, and a pulley being rotatably connected to the extension portion; a gap space is formed between the roller of the pulley and the extension portion for the shaft to pass through.

[0009] Furthermore, the end of the shaft is provided with an axial hole, and an R-type pin is provided in the shaft hole.

[0010] Furthermore, a third traction rope is connected to the R-pin.

[0011] Furthermore, the first ring body is C-shaped, and the second ring body is U-shaped.

[0012] The beneficial effects of this utility model are as follows: The drop test device provided by this utility model has a simple overall structure and is easy to process and manufacture, resulting in low production costs. During use, it can be quickly installed and connected, which can improve the overall testing efficiency. The structural strength of the product can be verified within the company without sending it out for separate testing, which makes it convenient for technicians to understand the product status in a timely manner. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a structural schematic diagram of the first lifting ring in this utility model.

[0016] Figure 3 This is a structural schematic diagram of the second lifting ring in this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. First lifting ring; 11. First ring body; 12. First bolt; 2. Second lifting ring; 21. Second ring body; 22. Second bolt; 3. Lifting rope; 4. Load-bearing shaft; 41. First ring; 42. Shaft; 5. Load-bearing shaft placement component; 51. Second ring; 52. Pulley; 53. Clearance space; 54. Extension; 6. First traction rope; 7. Second lifting ring connection. Detailed Implementation

[0018] The structure provided by this utility model will be explained and described in detail below with reference to the accompanying drawings.

[0019] refer to Figures 1 to 3 As shown, this embodiment specifically discloses a drop test device, including a first ring 1, a second ring 2, and a suspension rope 3; The first lifting ring 1 includes a first ring body 11 and a first bolt 12. The first ring body 11 is provided with a first opening. The first bolt 12 is connected to the first opening. A load-bearing shaft 4 is connected to the first bolt 12. The second lifting ring 2 includes a second ring body 21 and a second bolt 22. The second ring body 21 is provided with a second opening. The second bolt 22 is connected to the second opening. A load-bearing shaft placement piece 5 for cooperating with the load-bearing shaft 4 is connected to the second bolt 22. One end of the suspension rope 3 is connected to the first ring 11, and the other end is connected to the second ring 21.

[0020] Specifically, loops are formed at both ends of the lifting rope 3. When connection is required, the first bolt 12 and the second bolt 22 are loosened, and the loop at one end of the lifting rope 3 is hung in the first ring 11, and the loop at the other end is hung in the second ring 21 to achieve quick connection between the lifting rope 3 and the two lifting rings.

[0021] In this embodiment, the first opening of the first lifting ring 1 and the first bolt 12, and the second opening of the second lifting ring 2 and the second bolt 22 form a detachable structure. Loosening the bolts opens the openings, facilitating the quick connection and installation of the lifting rope 3 with the load-bearing shaft 4 and the load-bearing shaft placement piece 5. After the test, the lifting rope 3 can also be quickly removed by loosening the bolts, without the need for a complicated disassembly process. This can significantly shorten the preparation time before the test and the cleaning time after the test, thereby improving the overall test efficiency.

[0022] In the illustrated embodiment, the first ring 11 is C-shaped, and its arc structure provides a stable surrounding support surface for the connection of the suspension rope 3, making the contact between the suspension rope 3 and the ring more intimate and the force more even. This can effectively prevent the suspension rope 3 from local wear or sliding displacement caused by the abrupt shape of the ring when under load. The second ring 21 is U-shaped, and its opening width and gently sloping bottom arc design can form a more suitable accommodating space with the load-bearing shaft placement piece 5. Moreover, the first ring 11 and the second ring 21 are set with different shapes, which can facilitate differentiation and quick installation.

[0023] Continue to combine Figure 1 As shown, the drop test device also includes a first traction rope 6 and a second traction rope 7. The first traction rope 6 is connected to the first lifting ring 1, and the second traction rope 7 is connected to the second lifting ring 2. By setting the first traction rope 6 and the second traction rope 7, when the device is raised to a certain level, the load-bearing shaft 4 and the load-bearing shaft placement piece 5 can be separated by pulling the first traction rope 6 and the second traction rope 7, so that the product to be tested can fall freely and complete the drop test.

[0024] In some embodiments, reference Figure 2As shown, the load-bearing shaft 4 includes a first ring 41 sleeved on the first bolt 12 and a shaft 42 integrally formed with the first ring 41. The first ring 41 facilitates the quick installation of the load-bearing shaft 4 on the first bolt 12, and the assembly of the load-bearing shaft 4 and the first lifting ring 1 can be achieved without additional connecting parts. Moreover, the load-bearing shaft 4 can rotate freely around the first bolt 12. When the product to be tested is engaged with the load-bearing shaft placement part 5 through the shaft 42, it can adaptively adjust the angle by slight rotation to ensure that the product to be tested is in a natural hanging state when suspended, avoiding the skew of the specimen posture caused by rigid connection. In addition, the integrally formed design of the load-bearing shaft 4 can ensure the overall structural strength of the load-bearing shaft and reduce the risk of test breakage.

[0025] Further reference Figure 3 As shown, the load-bearing shaft placement component 5 includes a second ring 51 sleeved on the second bolt 22. An extension 54 is formed at the bottom of the second ring 51, and a pulley 52 is rotatably connected to the extension 54. A gap space 53 is formed between the roller of the pulley 52 and the extension 54 for the shaft rod 42 to pass through.

[0026] The second ring 51 is fitted onto the second bolt 22, allowing the load-bearing shaft placement piece 5 to rotate freely around the second bolt 22. This allows for adaptive angle adjustment to align with the shaft 42 of the load-bearing shaft 4. Simultaneously, the pulley 52 is rotatably connected to the extension 54, allowing for fine-tuning of its posture according to the insertion direction of the shaft 42. This combination makes it easier for the shaft 42 to penetrate the gap space 53, reducing rigid alignment errors during installation and improving the alignment efficiency of the suspended specimen. Furthermore, the pulley 52 reduces resistance when the shaft 42 is pulled out, facilitating its removal and making it easier for the test product to detach and complete the drop test.

[0027] In some preferred embodiments, the end of the shaft 42 is provided with an axial hole, and an R-pin (not shown in the figure) is provided in the shaft hole. By providing the R-pin, the R-pin can be installed in the shaft hole of the shaft 42 during the crane lifting process, that is, during the process of lifting the test product, to prevent the shaft 42 from disengaging from the pulley 52 during the lifting process, which can play a safety protection role. Furthermore, at this time, a third traction rope (not shown in the figure) can be connected to the R-pin. When the product is lifted to a suitable height, the R-pin can be pulled out of the shaft hole by pulling the third traction rope. Then, the first traction rope 6 and the second traction rope 7 can be pulled to disengage the shaft 42 from the pulley 52, allowing the test product to fall freely and completing the drop test.

[0028] The specific usage steps are given below: (1) Connect the traction rope (first traction rope 6, second traction rope 7, third traction rope), load-bearing shaft placement piece 5, load-bearing shaft 4, first lifting ring 1, second lifting ring 2, and lifting rope 3, and hook the lifting rope 3 into the crane hook; (2) Adjust the first lifting ring 1 at the lower end of the lifting rope 3 to be flush with the load-bearing shaft placement piece 5; (3) Use another rope to hang the test product onto the load-bearing shaft 4; (4) Insert the R-type pin (i.e., safety pin) into the shaft hole at the end of the load-bearing shaft 4; (5) The crane lifts the test product off the ground, and then the R-pin is pulled out first by the third traction rope, and then the first traction rope 6 and the second traction rope 7 are pulled out to both sides at the same time, so that the test product falls freely and the drop test is completed.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and simple improvements made on the substantive content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drop test apparatus, characterized in that, Includes a first lifting ring (1), a second lifting ring (2), and a lifting rope (3); The first lifting ring (1) includes a first ring body (11) and a first bolt (12). The first ring body (11) is provided with a first opening. The first bolt (12) is connected to the first opening. A load-bearing shaft (4) is connected to the first bolt (12). The second lifting ring (2) includes a second ring body (21) and a second bolt (22). The second ring body (21) is provided with a second opening. The second bolt (22) is connected to the second opening. The second bolt (22) is connected with a load-bearing shaft placement piece (5) for cooperating with the load-bearing shaft (4). One end of the suspension rope (3) is connected to the first ring body (11), and the other end is connected to the second ring body (21).

2. The drop test apparatus according to claim 1, characterized in that, It also includes a first traction rope (6) and a second traction rope (7), the first traction rope (6) being connected to the first lifting ring (1), and the second traction rope (7) being connected to the second lifting ring (2).

3. The drop test apparatus according to claim 1, characterized in that, The load-bearing shaft (4) includes a first ring (41) sleeved on the first bolt (12) and a shaft (42) integrally formed with the first ring (41).

4. The drop test apparatus according to claim 3, characterized in that, The load-bearing shaft placement component (5) includes a second ring (51) sleeved on the second bolt (22), and an extension (54) is formed at the bottom of the second ring (51). A pulley (52) is rotatably connected to the extension (54). A gap space (53) is formed between the roller of the pulley (52) and the extension (54) for the shaft (42) to pass through.

5. The drop test apparatus according to claim 3, characterized in that, The end of the shaft (42) is provided with an axial hole, and an R-type pin is provided in the shaft hole.

6. The drop test apparatus according to claim 5, characterized in that, A third traction rope is connected to the R-pin.

7. The drop test apparatus according to claim 1, characterized in that, The first ring (11) is C-shaped, and the second ring (21) is U-shaped.

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