Safety protection device of material damage testing machine

Abstract

The utility model belongs to the technical field of safety protection, and particularly relates to a safety protection device of a material damage testing machine, which comprises a protection box, the lower side of the protection box is fixedly connected with a purification cavity, the upper side wall and the lower side wall of the protection box are respectively provided with a first mounting hole, and the two first mounting holes are used for the upper testing end and the lower testing end of a material testing machine to extend into the protection box. A plurality of air holes are formed in the bottom wall of the protection box; the purification cavity is communicated with the protection box through an air hole, and a second mounting hole is formed in the bottom wall of the purification cavity and used for enabling the lower testing end of the material testing machine to penetrate into the protection box; an adsorption mechanism is arranged in the purification cavity and comprises an air suction assembly and an adsorption pool, an air suction port of the air suction assembly communicates with the purification cavity, the adsorption pool is fixed to the bottom wall of the purification cavity, and the adsorption mechanism is used for transferring dust in the protection box into the purification cavity through the air holes for adsorption treatment. The device can clean and collect dust generated in the test in time, guarantees the safety of the working environment and equipment, and is simple in structure and convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety protection, and particularly relates to a safety protection device for a material destruction testing machine. Background Art

[0002] Composite material testing machines have advantages such as versatility, adjustability, high precision, automation, flexibility, and reliability, making them indispensable important equipment in material testing and mechanical property evaluation. They are of great significance for evaluating the performance of composite materials, verifying designs, selecting materials, quality control, and research and development.

[0003] Composite materials are composed of a variety of materials (such as fibers and matrices). The performance evaluation of composite materials usually requires destructive tests, and the destruction process is often accompanied by the splashing of material debris and the diffusion of dust. Taking the mechanical test of carbon fiber composite materials as an example, under the action of an external load, the specimen will splash out carbon fiber filaments and carbon fiber dust, posing a serious threat to the safety of operators (allergy, injury). Carbon fiber has good electrical conductivity, and carbon fiber dust may enter the electrical equipment inside the testing machine, causing short circuits in electrical components and damaging the equipment. At the same time, it may damage the insulation performance of the testing machine, thereby reducing the insulation resistance. This will make the metal parts of the testing machine carry dangerous voltages.

[0004] Existing devices can limit the sputtering range of material fragments in the case of material fracture and splashing, and have a good limiting effect on the splashing material fragments. However, the micron-sized fiber dust generated during the destruction test of composite materials cannot be processed in a timely manner, resulting in the floating of dust with the air during the testing process and the cleaning process, affecting the health of the staff and the safety of the equipment. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a safety protection device for a material destruction testing machine, which can timely clean and collect the dust generated during the test, and ensure the safety of the working environment and the equipment.

[0006] The technical solution of the utility model is as follows:

[0007] A safety protection device for a material destruction testing machine, comprising:

[0008] A protection box, which is provided with first mounting holes on both its upper and lower side walls. The two first mounting holes are used for the upper and lower test ends of the material testing machine to extend into the protection box, and a plurality of air holes are provided on the bottom wall of the protection box;

[0009] A purification chamber, fixedly connected to the lower side of the protection box. The purification chamber is communicated with the protection box through the air holes, and a second mounting hole is provided on the bottom wall of the purification chamber for the lower test end of the material testing machine to extend deeper into the protection box;

[0010] An adsorption mechanism is arranged in the purification cavity and includes an air suction component and an adsorption pool. The air suction component is arranged on the side wall of the purification cavity, and its air suction port is communicated with the purification cavity. The adsorption pool is fixed on the bottom wall of the purification cavity. The adsorption mechanism is used to transfer the dust in the protective box into the purification cavity through air holes for adsorption treatment.

[0011] Preferably, the air suction component includes:

[0012] An air pump is fixedly connected to the outer wall of the purification cavity;

[0013] A main pipe is communicated with the air inlet of the air pump, and the main pipe surrounds the outer wall of the purification cavity;

[0014] A plurality of air inlet pipes are evenly distributed on the main pipe. One end of each air inlet pipe is communicated with the main pipe, and the other end is inserted into the purification cavity. And a filter element is arranged at the end of each air inlet pipe in the purification cavity.

[0015] Preferably, a plurality of adsorption pools are provided, and the adsorption pools are evenly distributed on the periphery of the second mounting hole. An adsorbent is filled in the adsorption pool.

[0016] Preferably, the filter element is a sponge.

[0017] Preferably, a plurality of vertically arranged rotating shafts are connected to the bottom wall of the purification cavity. The upper end of the rotating shaft penetrates into the purification cavity, and the rotating shaft is rotatably connected to the bottom wall of the purification cavity. A plurality of brushes are fixedly connected to the side wall of the purification cavity for each rotating shaft. A driving part is installed on the bottom wall of the purification cavity, and the output end of the driving part is connected to a plurality of the rotating shafts for simultaneously driving a plurality of the rotating shafts to rotate.

[0018] Preferably, the brush is arranged in an L shape, and the bristles of the brush face the inner wall of the purification cavity.

[0019] Preferably, a notch is formed on the side of the protective box facing away from the door body for avoiding the upper pressing part and the lower pressing part of the material testing machine. The notch is communicated with the first mounting holes at the upper and lower ends of the protective box. A sealing component is arranged at the notch, and the sealing component is used for closing the notch during the test.

[0020] Preferably, the sealing component includes:

[0021] Two horizontal slide rails are respectively arranged on both sides of the notch close to the purification cavity;

[0022] Two vertical slide rails correspond to the two horizontal slide rails one by one, and the vertical slide rails are perpendicular to the corresponding horizontal slide rails;

[0023] A plurality of elastic sealing membranes are respectively slidably connected between each of the horizontal slide rails and the two vertical slide rails, and a positioning portion is provided between the elastic sealing membrane and the horizontal slide rail or the vertical slide rail for fixing the elastic sealing membrane when it is unfolded.

[0024] Preferably, elastic sealing rings are fixed to both the first mounting hole on the upper side of the protective box and the second mounting hole on the bottom wall of the purification chamber.

[0025] Compared with the prior art, the safety protection device of a material destruction testing machine of the present utility model has the following beneficial effects:

[0026] During use, the protective box can not only block the debris generated during the test to avoid splashing and causing harm to the staff, but also block the dust. Then, the blocked dust is sucked into the purification chamber under the action of the suction assembly. In the purification chamber, the adsorption pool can timely adsorb and process the dust to avoid the floating and diffusion of the dust. Thus, in the later treatment, it can not only avoid the physical harm of the dust to the staff, but also avoid the dust floating and accumulating in the equipment and causing damage to the equipment. In addition, the structure of this device is simple, easy to install, and can effectively save the test time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure from the first perspective in an embodiment of the present utility model;

[0028] Figure 2 It is a schematic diagram of the overall structure from the second perspective in an embodiment of the present utility model;

[0029] Figure 3 It is a top view of the protective box in an embodiment of the present utility model;

[0030] Figure 4 It is a schematic cross-sectional structure diagram of the purification chamber in an embodiment of the present utility model;

[0031] Figure 5 It is a schematic diagram of the structure at the bottom of the purification chamber in an embodiment of the present utility model;

[0032] Figure 6 It is a schematic diagram of the structure of the brush in an embodiment of the present utility model;

[0033] Figure 7 It is a schematic diagram of the structure of the elastic sealing membrane in an embodiment of the present utility model;

[0034] Figure 8 It is a schematic diagram of the structure of the vertical slide rail in an embodiment of the present utility model;

[0035] Figure 9 It is a schematic diagram of the installation structure of this device and the material testing machine.

[0036] Description of reference numerals:

[0037] 1. Protective box; 2. First mounting hole; 3. Door body; 4. Air hole; 5. Purification chamber; 6. Second mounting hole; 7. Suction assembly; 71. Air pump; 72. Main pipe; 73. Intake pipe; 74. Filter element; 8. Adsorption tank; 9. Motor; 10. Driving sprocket; 11. Chain; 12. Driven sprocket; 13. Limiting member; 14. Rotating shaft; 15. Brush; 16. Notch; 17. Side hole; 18. French door; 19. Hinge; 20. Switch; 21. Sealing assembly; 211. Horizontal slide rail; 212. Vertical slide rail; 213. Elastic sealing film; 214. Electromagnet; 215. Adsorption block; 22. Elastic sealing ring; 23. Telescopic bracket; 24. Base; 25. Vertical beam; 26. Cross beam; 27. Upper pressing member; 28. Lower pressing member. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0039] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0041] See Figure 1 and Figure 2As shown, in order to timely process and collect the micron-scale fiber dust generated during the composite material failure test, and to prevent the dust from floating in the air and affecting the health of the staff and the safety of the equipment. This embodiment provides a safety protection device for a material failure testing machine, which includes a protection box 1. A purification chamber 5 is fixedly connected to the lower side of the protection box 1. First installation holes 2 are opened on both the upper and lower side walls of the protection box 1. The two first installation holes 2 are used for the upper and lower test ends of the material testing machine to extend into the protection box 1. A door body 3 is arranged on the side wall of the protection box 1. A plurality of air holes 4 are opened on the bottom wall of the protection box 1; the purification chamber 5 is communicated with the protection box 1 through the air holes 4. A second installation hole 6 is opened on the bottom wall of the purification chamber 5 for the lower test end of the material testing machine to extend deeper into the protection box 1; an adsorption mechanism is arranged in the purification chamber 5. The adsorption mechanism includes an air suction component 7 and an adsorption pool 8. The air suction component 7 is arranged on the side wall of the purification chamber 5, and its air suction port is communicated with the purification chamber 5. The adsorption pool 8 is fixed on the bottom wall of the purification chamber 5. The adsorption mechanism is used to transfer the dust in the protection box 1 to the purification chamber 5 through the air holes 4 for adsorption treatment.

[0042] Specifically, when in use, the protection box 1 can not only block the debris generated during the test to prevent splashing and causing harm to the staff, but also block the dust. Then, the blocked dust is sucked into the purification chamber 5 under the action of the air suction component 7. In the purification chamber 5, the adsorption pool 8 can timely adsorb and process the dust to prevent the floating and diffusion of the dust. Thus, in the later processing, it can not only avoid the physical harm of the dust to the staff, but also prevent the dust from floating and accumulating in the equipment and causing damage to the equipment. In addition, the structure of this device is simple and easy to install, which can effectively save the test time.

[0043] See Figure 1 and Figure 3 As shown, further, the air suction component 7 includes an air pump 71, a main pipe 72 and a plurality of intake pipes 73. Among them, the air pump 71 is fixedly connected to the outer wall of the purification chamber 5; the main pipe 72 is communicated with the air intake port of the air pump 71, and the main pipe 72 surrounds the outer wall of the purification chamber 5; the plurality of intake pipes 73 are evenly distributed on the main pipe 72. One end of the intake pipe 73 is communicated with the main pipe 72, and the other end is inserted into the purification chamber 5. And a filter element 74 is provided at the end of each intake pipe 73 placed in the purification chamber 5. The filter element 74 is made of sponge.

[0044] See Figure 4 As shown, further, a plurality of adsorption pools 8 are provided. The adsorption pools 8 are evenly distributed around the second installation hole 6. The adsorption pools 8 are filled with an adsorbent. Through the plurality of adsorption pools 8, the adsorption mechanism can fully adsorb the dust.

[0045] See Figures 3 to 5As shown, further, a driving part is provided on the outer side of the bottom wall of the purification chamber 5, and the driving part includes a motor 9, a driving sprocket 10, a chain 11 and a plurality of driven sprockets 12. The motor 9 is fixed to the outer wall of the purification chamber 5, and the driving sprocket 10 is fixed on the output shaft of the motor 9. The driving sprocket 10 is connected to a plurality of driven sprockets 12 through the chain 11. The chain 11 is connected to the purification chamber 5 through a limiter 13. The limiter 13 keeps the chain 11 always stably engaged with the driven sprocket 12 and the driving sprocket 10. The driving sprocket 10 and the plurality of driven sprockets 12 are fixedly connected with a rotating shaft 14 on the side facing the purification chamber 5. The rotating shaft 14 is vertically arranged and the upper end thereof penetrates into the purification chamber 5. The rotating shaft 14 is rotatably connected to the bottom wall of the purification chamber 5, and each rotating shaft 14 is located on the side wall of the purification chamber 5 and is fixedly connected with a plurality of brushes 15. In order to clean the dust adhering to the bottom wall and the side wall of the purification chamber 5 , the brush 15 is arranged in an L shape, and the bristles of the brush 15 face the inner wall of the purification chamber 5 .

[0046] See also Figures 1 to 4 As shown, further, in order to adapt to the use of different types of test machines and expand the applicability of the device. A notch 16 is provided on the side of the protection box 1 away from the door body 3, and a side hole 17 is provided on the side wall of the purification chamber 5 located directly below the notch 16. The side hole 17 is adapted to the notch 16, and the notch 16 is connected to the first mounting holes 2 at the upper and lower ends of the protection box 1. A flat door 18 is provided at the side hole 17. The flat door 18 is hinged to the side wall of the purification chamber 5 through a hinge 19. A switch 20 is provided between the end of the flat door 18 away from the hinge 19 and the side wall of the purification chamber 5. A sealing component 21 is provided at the notch 16, and the sealing component 21 is used to close the notch 16 during the test process.

[0047] See also Figure 2 , Figure 7 and Figure 8As shown in the figure, further, to ensure that there is no dust diffusion at the position of the notch 16 during the test. The sealing assembly 21 includes a horizontal slide rail 211, a vertical slide rail 212, and an elastic sealing film 213. There are two horizontal slide rails 211, which are respectively arranged on two sides adjacent to the notch 16 and the flat door 18. There are two vertical slide rails 212, which correspond to the two horizontal slide rails 211 one by one. The vertical slide rails 212 are fixed at one end of the horizontal slide rails 211 close to the first mounting hole 2. The corresponding horizontal slide rails 211 and vertical slide rails 212 are perpendicular, and both the horizontal slide rails 211 and the vertical slide rails 212 are fixedly connected to the protection box 1. A elastic sealing film 213 is slidably connected in each horizontal slide rail 211, and an elastic sealing film 213 is also slidably connected between the two vertical slide rails 212. The elastic sealing films 213 are all composed of a plurality of rectangular flat plates folded. Further, a positioning portion is provided between the elastic sealing film 213 and the horizontal slide rail 211 or the vertical slide rail 212 for fixing when the elastic sealing film 213 is unfolded. The positioning portion includes an electromagnet 214 and an adsorption block 215. Specifically, electromagnets 214 are inserted into the horizontal slide rail 211 and the vertical slide rail 212, and an adsorption block 215 is fixedly connected to the end of each rectangular flat plate of the elastic sealing film 213 placed in the horizontal slide rail 211 or the vertical slide rail 212.

[0048] See Figure 1 As shown in the figure, further, to ensure that there is no dust diffusion at the positions of the first mounting hole 2 and the second mounting hole 6. Elastic sealing rings 22 are fixed to the first mounting hole 2 on the upper side of the protection box 1 and the second mounting hole 6 on the bottom wall of the purification chamber 5.

[0049] See Figure 1 As shown in the figure, further, to facilitate the height adjustment of the positions of the purification chamber 5 and the protection box 1 according to different test pieces, a telescopic bracket 23 is provided at the bottom of the purification chamber 5. The telescopic bracket 23 is preferably a telescopic cylinder, and the moving end of the telescopic cylinder is fixedly connected to the bottom wall of the purification chamber 5.

[0050] See Figure 9 As shown in the figure, specifically, the material testing machine has a base 24, a vertical beam 25, a cross beam 26, an upper pressing member 27, and a lower pressing member 28. The base 24 and the cross beam 26 are oppositely arranged and fixed together by the vertical beam 25. The upper pressing member 27 is fixed on the cross beam 26, the lower pressing member 28 is fixed on the base 24, the output ends of the upper pressing member 27 and the lower pressing member 28 are oppositely arranged, and the safety protection device is arranged between the upper pressing member 27 and the lower pressing member 28. Among them, the purification chamber 5 is installed on the lower pressing member 28, and the protection box 1 is installed between the output ends of the upper pressing member 27 and the lower pressing member 28.

[0051] See Figures 1 to 9, when the device is in use, it has the following steps: ① Install the purification chamber 5 on the lower pressing member 28 and open the flat door 18 of the purification chamber 5. ② Move the notch 16 of the protective box 1 towards the upper pressing member 27 and the lower pressing member 28 of the testing machine, so that the elastic sealing ring 22 contacts the connecting shaft of the upper pressing member 27 and the lower pressing member 28. ③ Completely clamp the first mounting holes 2 on both the upper and lower sides of the protective box 1 onto the connecting shafts of the upper pressing member 27 and the lower pressing member 28, and seal them through the elastic sealing ring 22. ④ Then pull the elastic sealing film 213, so that the elastic sealing films 213 at different positions sequentially block different positions of the notch 16 along the horizontal slide rail 211 and the vertical slide rail 212; the electromagnets 214 of the horizontal slide rail 211, the vertical slide rail 212, and the elastic sealing ring 22 are energized to connect the elastic sealing ring 22, the elastic sealing film 213, and the fuselage into a whole (at this time, two chambers, namely the test chamber and the purification chamber 5, are formed). ⑤ Open the sliding door and place the specimen. ⑥ Select a suitable adsorbent according to the material characteristics and add it to the dust adsorption pool 8. ⑦ Open the air suction assembly 7 to carry out mechanical tests. ⑧ During the test, the air suction assembly 7 will inhale the dust generated in the protective box 1 into the purification chamber 5 through the air holes 4, and use the adsorption pool 8 to adsorb the dust. ⑨ At the same time, turn on the motor 9 and use the cooperation of the driving sprocket 10, the chain 11, and the driven sprocket 12 to drive the brushes 15 to rotate synchronously by multiple rotating shafts 14, and clean the dust accumulated on the side walls and the bottom wall of the purification box again, so that the dust in the purification chamber 5 can be cleaned more thoroughly.

[0052] Obviously, those skilled in the art can make various changes and deformations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these changes and deformations.

Claims

1. A safety protection device for a material destruction testing machine, characterized in that: include: A protection box (1) is provided with first mounting holes (2) on its upper and lower side walls, the two first mounting holes (2) being used for the upper and lower test ends of the material testing machine to extend into the protection box (1), and a plurality of air holes (4) are provided on the bottom wall of the protection box (1); A purification chamber (5) is fixedly connected to the lower side of the protection box (1); the purification chamber (5) is connected to the protection box (1) through the air hole (4); a second mounting hole (6) is provided on the bottom wall of the purification chamber (5) for the lower test end of the material testing machine to penetrate into the protection box (1); The adsorption mechanism is arranged in the purification chamber (5), and comprises an air suction component (7) and an adsorption pool (8). The air suction component (7) is arranged on the side wall of the purification chamber (5), and its air suction port is connected to the purification chamber (5). The adsorption pool (8) is fixed on the bottom wall of the purification chamber (5). The adsorption mechanism is used to transfer the dust in the protective box (1) to the purification chamber (5) through the air hole (4) for adsorption treatment.

2. A safety protection device for a material destruction testing machine according to claim 1, characterized in that: The air suction component (7) comprises: An air pump (71) is fixedly connected to the outer wall of the purification chamber (5); A main pipe (72) is connected to the air inlet of the air pump (71), and the main pipe (72) surrounds the outer wall of the purification chamber (5); A plurality of air inlet pipes (73) are evenly distributed on the main pipe (72); one end of the air inlet pipe (73) is connected to the main pipe (72) and the other end is inserted into the purification chamber (5); and a filter element (74) is provided at the end of each air inlet pipe (73) placed in the purification chamber (5).

3. The safety protection device of a material destruction testing machine according to claim 1, characterized in that: A plurality of the adsorption pools (8) are provided, and the adsorption pools (8) are evenly distributed around the second mounting hole (6), and the adsorption pools (8) are filled with an adsorbent.

4. The safety protection device of a material destruction testing machine according to claim 2, characterized in that: The filter element (74) is a sponge.

5. The safety protection device of a material destruction testing machine according to claim 1, characterized in that: The bottom wall of the purification chamber (5) is connected to a plurality of vertically arranged rotating shafts (14), the upper ends of the rotating shafts (14) penetrate into the purification chamber (5), and the rotating shafts (14) are rotatably connected to the bottom wall of the purification chamber (5). Each of the rotating shafts (14) located on the side wall of the purification chamber (5) is fixedly connected to a plurality of brushes (15). A driving unit is installed on the bottom wall of the purification chamber (5), and the output end of the driving unit is connected to the plurality of rotating shafts (14) for driving the plurality of rotating shafts (14) to rotate simultaneously.

6. The safety protection device of a material destruction testing machine according to claim 5, characterized in that: The brush (15) is arranged in an L shape, and the bristles of the brush (15) face the inner wall of the purification chamber (5).

7. The safety protection device of a material destruction testing machine according to claim 1, characterized in that: A notch (16) is provided on one side of the protection box (1) for avoiding an upper pressing piece (27) and a lower pressing piece (28) of a material testing machine. The notch (16) is connected to first mounting holes (2) at upper and lower ends of the protection box (1). A sealing component (21) is provided at the notch (16). The sealing component (21) is used to close the notch (16) during the test process.

8. The safety protection device of a material destruction testing machine according to claim 7, characterized in that: The sealing assembly (21) comprises: Two horizontal slide rails (211) are respectively arranged on two sides of the notch (16) close to the purification chamber (5); Two vertical slide rails (212) corresponding one to the two horizontal slide rails (211), the vertical slide rails (212) being perpendicular to the corresponding horizontal slide rails (211); A plurality of elastic sealing membranes (213) are respectively slidably connected between each of the horizontal slide rails (211) and the two vertical slide rails (212), and a positioning portion is provided between the elastic sealing membrane (213) and the horizontal slide rail (211) or the vertical slide rail (212) for fixing the elastic sealing membrane (213) when it is unfolded.

9. The safety protection device of a material destruction testing machine according to claim 1, characterized in that: The first mounting hole (2) on the upper side of the protection box (1) and the second mounting hole (6) on the bottom wall of the purification chamber (5) are both fixed with elastic sealing rings (22).

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