Air spring fatigue testing device for tool box

Abstract

The utility model discloses an air spring fatigue testing device for a tool box, which comprises a base, a support frame arranged on the base, a fixing frame arranged at the bottom of the support frame and used for fixing an air spring, and an air cylinder arranged at the top of the support frame and used for compressing the air spring, and a compression frame for compressing the air spring is arranged at the top of a piston rod of the air cylinder. A fixing block for fixing the air spring is arranged on the fixing frame, a control table for controlling the air cylinder is arranged on the base, and a display screen for displaying the number of times that the air spring bears compression of the air cylinder is arranged on the control table. A piston rod of the air cylinder drives the compression frame to compress the air spring on the fixing frame, the display screen displays the number of compression times, and the air spring fatigue testing device is used for conducting fatigue testing on the air spring and is simple in structure, convenient to manufacture and low in production cost.

Description

Technical Field

[0001] The utility model relates to the field of plastic hardware processing, in particular to a gas spring fatigue testing device for a tool box. Background Art

[0002] Gas spring is an industrial accessory that can support, buffer, brake, adjust height and angle. It consists of pressure cylinder, piston rod, piston, sealing guide sleeve, filler (inert gas or oil-gas mixture) and other components. The principle is to fill the closed pressure cylinder with inert gas or oil-gas mixture to make the pressure in the cavity several times or dozens of times higher than the atmospheric pressure. The cross-sectional area of ​​the piston rod is smaller than the cross-sectional area of ​​the piston to generate a pressure difference to achieve the movement of the piston rod. Gas springs have significant advantages over ordinary springs: relatively slow speed, small change in dynamic force (generally within 1:1.2), and easy control. Toolboxes usually use gas springs as the opening and closing parts of the box, and there are corresponding requirements for the maximum number of expansion and contraction times of gas springs, which requires fatigue testing of gas springs. The existing fatigue testing equipment has a relatively complex structure and high manufacturing cost. Summary of the invention

[0003] In order to solve one or some technical problems existing in the prior art, the purpose of the present application is to provide a gas spring fatigue testing device for a tool box, which has a simple structure, is easy to manufacture, and has a low production cost.

[0004] In order to solve the above-mentioned existing technical problems, the purpose of this application is achieved by adopting the following technical solutions: a gas spring fatigue test device for a toolbox, comprising a base, a support frame arranged on the base, a fixing frame arranged at the bottom of the support frame for fixing the gas spring, and a cylinder arranged at the top of the support frame for compressing the gas spring, a compression frame for compressing the gas spring is arranged at the top of the piston rod of the cylinder, a fixing block for fixing the gas spring is arranged on the fixing frame, a control console for controlling the cylinder is arranged on the base, and a display screen is arranged on the control console for displaying the number of times the gas spring is compressed by the cylinder. The piston rod of the cylinder drives the compression frame to compress the gas spring on the fixing frame, and the display screen displays the number of compressions, which is used for fatigue testing of the gas spring and has a simple structure.

[0005] Preferably, the support frame is provided with a slide rail for slidingly connecting the compression frame, and the position of the compression frame is limited to avoid displacement of the compression frame, ensure uniform force on the gas spring, and facilitate accurate testing of the maximum compression times of the gas spring.

[0006] Preferably, an upper top plate connected to the piston rod of the cylinder is provided on the top of the compression frame, a lower top plate connected to the gas spring is provided on the bottom of the compression frame, and a limit column cooperating with the slide rail is provided on both sides of the slide rail in the center of the compression frame. The structure is simple and the connection is convenient. The limit column cooperates with the slide rail to realize the movement limit of the compression frame and avoid deviation.

[0007] Preferably, the front part of the fixing frame is fixed on the slide rail, and the rear part of the fixing frame is fixed on the support frame, so as to improve the reliability of the fixing frame and prevent the fixing frame from loosening.

[0008] Preferably, a protective pad is provided between the fixing block and the gas spring to prevent the fixing block from directly contacting the gas spring and damaging the gas spring, thereby ensuring the accuracy of the test.

[0009] Preferably, the fixing block is provided with a fastening bolt connected to the fixing frame, the fixing block is provided with a limiting groove, and the protection pad is arranged in the limiting groove. The limiting groove limits the side of the gas spring to prevent the gas spring from being damaged due to lateral movement.

[0010] Preferably, a bottom plate connected to the gas spring is provided at the bottom of the fixing frame to prevent the gas spring from slipping out of the fixing frame and ensure the normal operation of the test.

[0011] Preferably, the bottom plate is provided with a positioning groove for the top gas spring, which limits the gas spring and prevents the gas spring from being deflected and damaged during compression, thereby protecting the gas spring.

[0012] Preferably, the console is provided with a control button for controlling the frequency and length of cylinder compression, and stopping the cylinder operation in time after the gas spring is subjected to the maximum number of compressions, thereby effectively protecting the entire test device from damage.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] A gas spring fatigue testing device for a toolbox adopts the above technical solution. The piston rod of the cylinder drives the compression frame to compress the gas spring on the fixed frame. The display screen shows the number of compressions. It is used to perform fatigue testing on the gas spring. It has a simple structure, is easy to manufacture, and has a low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the compression frame in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the fixing block in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the bottom plate of the utility model.

[0019] In the figure: 1. base; 2. support frame; 3. fixing frame; 4. cylinder; 5. gas spring; 6. compression frame; 61. upper top plate; 62. lower top plate; 63. limiting column; 7. slide rail; 8. fixing block; 81. fastening bolt; 82. limiting groove; 9. protection pad; 10. bottom plate; 101. positioning groove; 11. control console; 12. display screen; 13. control button. DETAILED DESCRIPTION

[0020] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0022] like Figures 1 to 4 As shown, a gas spring fatigue testing device for a toolbox includes a base 1, a support frame 2 arranged on the base 1, a fixing frame 3 arranged at the bottom of the support frame 2 for fixing a gas spring 5, and a cylinder 4 arranged at the top of the support frame 2 for compressing the gas spring 5. The top of the piston rod of the cylinder 4 is provided with a compression frame 6 for compressing the gas spring 5, and the fixing frame 3 is provided with a fixing block 8 for fixing the gas spring 5. The base 1 is provided with a console 11 for controlling the cylinder 4, and the console 11 is provided with a display screen 12 for displaying the number of times the gas spring 5 is compressed by the cylinder 4. The piston rod of the cylinder 4 drives the compression frame to compress the gas spring on the fixing frame, and the display screen displays the number of compressions, which is used for fatigue testing of the gas spring, and has a simple structure. It is easy to manufacture and has low production cost.

[0023] The support frame 2 is provided with a slide rail 7 for slidingly connecting the compression frame 6. The top of the compression frame 6 is provided with an upper top plate 61 connected to the piston rod of the cylinder 4, and the bottom of the compression frame 6 is provided with a lower top plate 62 connected to the top of the gas spring 5. The center of the compression frame 6 is located on both sides of the slide rail 7 and is provided with a limit column 63 that cooperates with the slide rail 7. The position of the compression frame 6 is limited to avoid the displacement of the compression frame 6, ensure that the gas spring 5 is evenly stressed, and facilitate accurate testing of the maximum number of compressions that the gas spring 5 can withstand.

[0024] The front part of the fixing frame 3 is fixed on the slide rail 7, and the rear part of the fixing frame 3 is fixed on the support frame 2. The reliability of the fixing frame 3 is improved to prevent the fixing frame 3 from loosening.

[0025] A protective pad 9 is provided between the fixed block 8 and the gas spring 5. The protective pad 9 prevents the fixed block 8 from directly contacting the gas spring 5 and damaging the gas spring 5, thereby ensuring the accuracy of the test. The fixed block 8 is provided with a fastening bolt 81 connected to the fixing frame 3, and the fixed block 8 is provided with a limiting groove 82, and the protective pad 9 is arranged in the limiting groove 82. The limiting groove 82 limits the side of the gas spring 5 to prevent the gas spring 5 from being damaged due to lateral movement. The number of limiting grooves 82 can be determined according to the number of gas springs 5 ​​to be tested.

[0026] The bottom of the fixing frame 3 is provided with a bottom plate 10 for top-connecting the gas spring 5. The bottom plate 10 is provided with a positioning groove 101 for top-connecting the gas spring 5. The positioning groove 101 limits the gas spring 5 to prevent the gas spring 5 from being deflected and damaged during compression, thereby protecting the gas spring 5. The number of positioning grooves 101 can be determined according to the number of gas springs 5 ​​to be tested.

[0027] The console 11 is provided with a control button 13. The control button 13 is used to control the compression frequency and compression length of the cylinder 4, and to stop the operation of the cylinder 4 in time after the gas spring 5 is subjected to the maximum number of compressions, so as to effectively protect the entire test device from damage.

[0028] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A gas spring fatigue testing device for a tool box, characterized in that: The invention comprises a base (1), a support frame (2) arranged on the base (1), a fixing frame (3) arranged at the bottom of the support frame (2) for fixing a gas spring (5), and a cylinder (4) arranged at the top of the support frame (2) for compressing the gas spring (5); a compression frame (6) for compressing the gas spring (5) is arranged at the top of the piston rod of the cylinder (4); a fixing block (8) for fixing the gas spring (5) is arranged on the fixing frame (3); a control console (11) for controlling the gas cylinder (4) is arranged on the base (1); and a display screen (12) for displaying the number of times the gas spring (5) is compressed by the cylinder (4) is arranged on the control console (11).

2. A gas spring fatigue testing device for a tool box according to claim 1, characterized in that: The support frame (2) is provided with a slide rail (7) for slidingly connecting the compression frame (6).

3. A gas spring fatigue testing device for a tool box according to claim 2, characterized in that: The top of the compression frame (6) is provided with an upper top plate (61) connected to the piston rod of the cylinder (4), the bottom of the compression frame (6) is provided with a lower top plate (62) connected to the top of the gas spring (5), and the center of the compression frame (6) is located on both sides of the slide rail (7) and is provided with a limit column (63) that cooperates with the slide rail (7).

4. A gas spring fatigue testing device for a tool box according to claim 2, characterized in that: The front part of the fixing frame (3) is fixed on the slide rail (7), and the rear part of the fixing frame (3) is fixed on the supporting frame (2).

5. The gas spring fatigue testing device for a tool box according to claim 1, characterized in that: A protection pad (9) is provided between the fixing block (8) and the gas spring (5).

6. A gas spring fatigue testing device for a tool box according to claim 5, characterized in that: The fixing block (8) is provided with a fastening bolt (81) connected to the fixing frame (3), the fixing block (8) is provided with a limiting groove (82), and the protection pad (9) is arranged in the limiting groove (82).

7. The gas spring fatigue testing device for a tool box according to claim 1, characterized in that: The bottom of the fixing frame (3) is provided with a bottom plate (10) which is top-connected with the gas spring (5).

8. A gas spring fatigue testing device for a tool box according to claim 7, characterized in that: The bottom plate (10) is provided with a positioning groove (101) for top-connecting the gas spring (5).

9. A gas spring fatigue testing device for a tool box according to claim 1, characterized in that: The console (11) is provided with a control button (13).

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