Furniture drop test device

Abstract

The utility model discloses a furniture drop test device. The furniture drop test device comprises a base; the cross beam is arranged above the base, a plurality of guide wheels are arranged on the outer side of the cross beam at equal intervals, a steel wire rope is wound on the outer sides of the guide wheels, and one end of the steel wire rope is fixedly connected with a lifting plate; the assembly plate is clamped at the bottom of the lifting plate, two fixing clamps are rotatably arranged at the bottom of the assembly plate, and the assembly plate is used for clamping furniture and carrying out an impact experiment. The equipment has the beneficial effects that the equipment can carry out a falling test and an impact test on the furniture, and various physical impacts, such as falling and impact, possibly encountered by the furniture in actual use can be simulated; real test data can be provided to help to improve the product quality, multiple purposes are realized, the equipment can be more widely applied to various test requirements due to multiple functions, and the space and the cost are saved; through cooperative use of the bidirectional lead screw and the driving motor, the position of the clamping plate and the height of the lifting plate can be accurately controlled, and accurate execution of an experiment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture drop testing, in particular to a furniture drop testing device. Background Art

[0002] At present, in the production process of products, it is necessary to test the various performance of the products, and determine whether the products are qualified by testing whether the various performance of the products meet the standards. The product drop test is one of the important contents of the product performance test. According to the national performance test standard, the furniture drop test requires the specimen to be hoisted, so that the line between the bottom of the impacted leg and the bottom of the opposite diagonal leg forms a certain angle with the horizontal plane, and then dropped from a certain height, and the test needs to be performed by dropping from different heights.

[0003] The existing furniture drop test is to place the furniture at a specified height and then let the furniture fall freely to achieve the test. The existing furniture drop test device needs to adjust the position of each cylinder to adjust the height of the drop test and the angle of the test piece, which occupies a large space. The cylinder position adjustment is troublesome, resulting in low test efficiency. In addition, the performance of the equipment is relatively single, and the equipment cannot be more widely used in other testing needs. Utility Model Content

[0004] The purpose of the utility model is to provide a furniture drop test device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a furniture drop test device, comprising:

[0006] Base;

[0007] A crossbeam, the crossbeam is placed above the base, a plurality of guide wheels are equidistantly arranged on the outer side of the crossbeam, a steel wire rope is wound around the outer side of the guide wheel, and one end of the steel wire rope is fixedly connected to a lifting plate;

[0008] The assembly plate is clamped on the bottom of the lifting plate. The bottom of the assembly plate is rotatably provided with two fixing clamps for clamping furniture and performing impact tests.

[0009] Preferably, a movable slide is slidably connected to the top of the base.

[0010] Preferably, two pillars are symmetrically fixedly connected to the top of the base, the crossbeam is fixedly connected to the top of the two pillars, and a limiting rod is fixedly connected to the top of the base and one side close to the pillar.

[0011] Preferably, a connecting cross bar is slidably connected to the outer side of the limiting rod, and one end of the connecting cross bar is fixedly connected to the lifting plate.

[0012] Preferably, the top of the beam is rotatably connected to a winding wheel, one end of the wire rope is wound around the outside of the winding wheel, the top of the beam is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to the winding wheel.

[0013] Preferably, two connecting rods are fixedly connected to the top of the assembly plate, and limiting grooves are provided on the outer sides of the connecting rods. The bottom of the assembly plate is rotatably connected to a rotating disk, and the fixing clamp is installed at the bottom of the rotating disk.

[0014] Preferably, the fixing clamp comprises a bidirectional lead screw rotatably connected to the bottom of the rotating disk, and the outer side of the bidirectional lead screw is symmetrically threaded with two clamping plates.

[0015] Preferably, an assembly hole for use with a connecting rod is opened in the middle of the lifting plate, and a fixed block is fixedly connected to the top of the lifting plate on one side of the assembly hole. The middle of the fixed block is slidably connected to a limiting block, and the limiting block is slidably connected to the lifting plate, and a return spring is sleeved on the outer side of the limiting block.

[0016] Preferably, a telescopic electromagnet is fixedly connected to the top of the fixed block, and a driving block is fixedly connected to one end of the limit block.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the equipment can carry out drop tests and impact tests on furniture, simulating various physical shocks that furniture may encounter in actual use, such as falling and impacting, and can provide real test data to help improve product quality, realizing multi-purpose use of one machine. The versatility enables the equipment to be more widely used in various testing needs, saving space and cost; through the coordinated use of a bidirectional lead screw and a drive motor, the position of the splint and the height of the lifting plate can be accurately controlled to ensure accurate execution of the experiment; major components such as guide wheels, wire ropes, and lifting plates are easy to purchase and maintain, which helps to maintain long-term and stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing clip of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the reel of the utility model;

[0021] Figure 4 It is an enlarged view of point A of the present utility model.

[0022] In the figure: 1. base; 2. pillar; 3. crossbeam; 4. limit rod; 5. clamping plate; 6. connecting cross bar; 7. lifting plate; 8. assembly plate; 9. guide wheel; 10. wire rope; 11. winding wheel; 12. driving motor; 13. fixing block; 14. limit block; 15. telescopic electromagnet; 16. driving block; 17. reset spring; 18. moving slide plate; 19. connecting rod; 20. bidirectional screw; 21. rotating disk. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 , 2 As shown in Figures 3 and 4, the utility model provides a technical solution: a furniture drop test device, comprising: a base 1; a crossbeam 3 is placed above the base 1, and guide wheels 9 are installed at the middle position of the bottom of the crossbeam 3 and the top and bottom of one end, and a steel wire rope 10 is wound around the outer side of the guide wheel 9. The steel wire rope 10 is wound from the middle part below the guide wheel 9 to the lower end and then to the upper end to form an L-shaped structure, and one end of the steel wire rope 10 is fixedly connected to a lifting plate 7 under the crossbeam 3; an assembly plate 8 is clamped at the bottom of the lifting plate 7, and two fixing clamps are rotatably provided at the bottom of the assembly plate 8 for clamping furniture and impact testing.

[0025] It should be noted that the utility model is provided with a controller and a corresponding operation panel. The assembly plate 8 is removed and installed according to the detection requirements. The assembly plate 8 is fixed above the test position, and the two-way lead screw 20 connected thereto is rotated to drive the two clamping plates 5 to move, so as to clamp and fix the furniture. Then the guide wheel 9 is installed in coordination with the lifting plate 7, and the winding wheel 11 is driven by the driving motor 12 to lift the lifting plate 7 and the assembly plate 8 to a specified height. When the specified height is reached, the driving block 16 is pushed by controlling the extension of the telescopic electromagnet 15, and the limit block 14 is separated from the connecting rod 19 by the driving block 16. Under the action of gravity, the furniture falls. When the furniture needs to be subjected to a corresponding impact test, the test hammer of the impact test is fixed in the fixed clamp under the assembly plate 8, and the impact test of the furniture can be realized by the free fall of the assembly plate 8 and the test hammer.

[0026] See also Figure 1 As shown, a movable slide plate 18 is slidably connected to the top of the base 1 .

[0027] It should be noted that two installation grooves are provided on the top of the mobile skateboard 18 of the utility model, and ceramic tiles and wooden floors are installed inside the two installation grooves respectively. By sliding the mobile skateboard 18, the ground of different materials is located below the detection position, so as to carry out drop tests for different environments.

[0028] See also Figure 1 As shown, two pillars 2 are symmetrically fixedly connected to the top of the base 1, and a cross beam 3 is fixedly connected to the top of the two pillars 2. A limiting rod 4 is fixedly connected to the top of the base 1 and one side close to the pillar 2. A connecting cross bar 6 is slidably connected to the outer side of the limiting rod 4, and one end of the connecting cross bar 6 is fixedly connected to the lifting plate 7.

[0029] It should be noted that one end of the connecting cross bar 6 of the utility model is slidably connected to the limit rod 4 through a linear bearing. The limit rods 4 and the connecting cross bar 6 on both sides can make the lifting plate 7 stably lift and lower vertically, ensuring that the lifting is more stable when clamping the workpiece.

[0030] See also Figure 1 , 3 As shown, the top of the beam 3 is rotatably connected to a winding wheel 11, one end of the wire rope 10 is wound around the outside of the winding wheel 11, and the top of the beam 3 is fixedly connected to a driving motor 12, and the output end of the driving motor 12 is fixedly connected to the winding wheel 11.

[0031] It should be noted that the utility model drives the winding wheel 11 to wind up the wire rope 10 through the driving motor 12, and moves the lifting plate 7 upward along the limit rod 4 through winding, so that the lifting plate 7 reaches the required height, which is convenient for flexible adjustment of the height according to needs.

[0032] See also Figure 1 , 3 As shown, the top of the assembly plate 8 is fixedly connected to two connecting rods 19, and the outer side of the connecting rods 19 is provided with a limit groove. The bottom of the assembly plate 8 is rotatably connected to a rotating disk 21, and a fixing clamp is installed at the bottom of the rotating disk 21. The fixing clamp includes a bidirectional lead screw 20 rotatably connected to the bottom of the rotating disk 21, and the outer side of the bidirectional lead screw 20 is symmetrically threaded with two clamping plates 5.

[0033] It should be noted that the assembly plate 8 and the clamp 5 of the utility model are both made of plastic material, and both the assembly plate 8 and the clamp 5 are hollow structures to reduce their own gravity. By rotating the rotating disk 21, the direction of the clamp can be adjusted for different test furniture. The two clamps 5 are driven to move toward the middle by rotating the bidirectional screw 20 to complete the clamping of the furniture. The bottom of the clamp 5 is composed of long boards. By clamping the furniture at different positions at different heights of the clamp 5, one side can fix the furniture at different inclination angles. The impact head of the impact experiment is installed between the two clamps 5. The constraint on the connecting rod 19 can be cancelled by the telescopic electromagnet 15 and the limit block 14, so that the impact head can fall freely to realize the impact experiment on the test furniture below.

[0034] See also Figure 4 As shown, an assembly hole for use with a connecting rod 19 is opened in the middle of the lifting plate 7, and a fixed block 13 is fixedly connected to the top of the lifting plate 7 on one side of the assembly hole. A limit block 14 is slidably connected to the middle of the fixed block 13. The limit block 14 is slidably connected to the lifting plate 7, and a return spring 17 is sleeved on the outer side of the limit block 14. A telescopic electromagnet 15 is fixedly connected to the top of the fixed block 13, and a driving block 16 is fixedly connected to one end of the limit block 14.

[0035] It should be noted that, when the utility model assembles the assembly plate 8 and the lifting plate 7, the connecting rod 19 is inserted into the assembly hole, and the connecting rod 19 pushes the limit block 14 open. When the limit block 14 corresponds to the outer limit groove of the connecting rod 19, under the action of the reset spring 17, the limit block 14 is inserted into the limit groove, so that the lifting plate 7 and the assembly plate 8 are assembled and installed, and the wire rope 10 is driven to be wound by the rotating disk 21 and the winding wheel 11 to adjust the height of the assembly plate 8. When the specified height is reached, the telescopic electromagnet 15 is controlled to be energized, and the telescopic electromagnet 15 is extended to its driving block 16. The driving block 16 drives the limit block 14 to compress the reset spring 17, so that the limit block 14 is separated from the outer limit groove of the connecting rod 19, so that the furniture falls freely, thereby realizing the drop test.

[0036] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A furniture drop test device, characterized in that: include: Base (1); A crossbeam (3), the crossbeam (3) being placed above the base (1), a plurality of guide wheels (9) being equidistantly arranged on the outer side of the crossbeam (3), a steel wire rope (10) being wound around the outer side of the guide wheel (9), and a lifting plate (7) being fixedly connected to one end of the steel wire rope (10); An assembly plate (8) is clamped on the bottom of the lifting plate (7), and two fixing clamps are rotatably provided on the bottom of the assembly plate (8) for clamping furniture and performing impact tests.

2. A furniture drop test device according to claim 1, characterized in that: The top of the base (1) is slidably connected with a movable slide plate (18).

3. A furniture drop test device according to claim 1, characterized in that: The top of the base (1) is symmetrically and fixedly connected to two pillars (2), the crossbeam (3) is fixedly connected to the tops of the two pillars (2), and the top of the base (1) and one side close to the pillars (2) is fixedly connected to a limiting rod (4).

4. A furniture drop test device according to claim 3, characterized in that: The outer side of the limiting rod (4) is slidably connected to a connecting cross bar (6), and one end of the connecting cross bar (6) is fixedly connected to a lifting plate (7).

5. A furniture drop test device according to claim 4, characterized in that: The top of the crossbeam (3) is rotatably connected to a winding wheel (11), one end of the steel wire rope (10) is wound around the outside of the winding wheel (11), and the top of the crossbeam (3) is fixedly connected to a driving motor (12), the output end of the driving motor (12) is fixedly connected to the winding wheel (11).

6. A furniture drop test device according to claim 1, characterized in that: The top of the assembly plate (8) is fixedly connected to two connecting rods (19), and the outer sides of the connecting rods (19) are provided with limiting grooves. The bottom of the assembly plate (8) is rotatably connected to a rotating disk (21), and the fixing clamp is installed at the bottom of the rotating disk (21).

7. A furniture drop test device according to claim 6, characterized in that: The fixing clamp comprises a bidirectional lead screw (20) rotatably connected to the bottom of a rotating disk (21), and two clamping plates (5) are symmetrically threadedly connected to the outer side of the bidirectional lead screw (20).

8. A furniture drop test device according to claim 7, characterized in that: The middle of the lifting plate (7) is provided with an assembly hole for use with a connecting rod (19); the top of the lifting plate (7) is fixedly connected to a fixing block (13) on one side of the assembly hole; the middle of the fixing block (13) is slidably connected to a limiting block (14); the limiting block (14) is slidably connected to the lifting plate (7); and a return spring (17) is sleeved on the outer side of the limiting block (14).

9. A furniture drop test device according to claim 8, characterized in that: A telescopic electromagnet (15) is fixedly connected to the top of the fixed block (13), and a driving block (16) is fixedly connected to one end of the limit block (14).

Images