Impact resistance performance test device

Abstract

The utility model discloses an anti -impact performance experimental device relates to the field of anti -impact performance, including experiment box and universal wheel, the both sides of experiment box bottom end all have universal wheel, the outside of experiment box is provided with the observation door, and the outside of observation door is provided with the handle, the outside one end of experiment box is provided with the display, and the bottom plate all are fixed to the outside of support plate, one end of reset spring is connected with the outer wall of support plate, the other end of reset spring all is connected with the fixed plate. The utility model discloses a sample is put into the baffle box, makes sample and fixed plate outer wall and touches, makes fixed plate and slides back, makes reset spring compression, and the spacing block slides to the appropriate position in the limiting groove, can utilize two fixed plates to carry out the transverse clamping position of sample, ensures that sample does not happen the movement or rotation in the impact process, to improve the precision of sample impact resistance detection.

Description

Technical Field

[0001] This utility model relates to the field of impact resistance technology, and in particular to an impact resistance testing device. Background Technology

[0002] Impact resistance refers to the ability of a material or specimen to resist impact loads. Its theory originates from the microcrack theory proposed by Griffith in 1920. This theory points out that brittle fracture of materials is caused by the propagation of internal cracks rather than overall fracture. Impact resistance is an important indicator for measuring the ability of a material to resist damage from external impacts, and it is crucial for the safety and reliability of materials in practical applications. In existing devices, the sample is not fixed when placed in the test chamber. The sample is very prone to moving or deflecting at the moment of impact, causing the impact point to deviate from the predetermined position. When the sample is impacted, it may break and fragments may fly out. The fragments are out of control and may cause injury to the test personnel and surrounding equipment. Therefore, corresponding improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide an impact resistance testing device to solve the problem mentioned in the background art of the lack of fixed sample position and easy fragmentation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an impact resistance performance testing device, comprising a test chamber and casters. The test chamber has casters on both sides of its bottom. An observation door is provided on the outside of the test chamber, and a handle is provided on the outside of the observation door. A display is provided at one end of the outside of the test chamber. A partition box is provided inside the test chamber, and support plates are fixed to both ends of the partition box. A placement plate is connected to the top of the support plate, and a motor is provided on one side of the top of the placement plate. The output shaft of the motor is connected to a rope winder, and a connecting rope is evenly wound on the outside of the rope winder. An impact head is connected to the bottom end of the connecting rope. A scale is connected to one side of the back of the placement plate. A fixing assembly is provided inside the partition box, and the fixing assembly includes a bottom plate disposed inside the partition box, and the bottom plate is fixed to the outside of the support plate. A return spring is provided at the top of each bottom plate, one end of which is connected to the outer wall of the support plate, and the other end of which is connected to the fixing plate.

[0005] Furthermore, movable seats are connected to both sides of the fixed plate, and clamping plates are movably connected to one side of each movable seat. A slider is movably connected to one end of each clamping plate. A limit block is fixed to the bottom of each fixed plate, and limit grooves are provided on both sides of the top of the bottom plate. The limit blocks are slidably connected to the limit grooves.

[0006] Furthermore, guide grooves are provided on both sides of the interior of the partition box, and one end of each slider extends into the guide groove, with the slider slidably connected to the guide groove.

[0007] Furthermore, four clamping plates are provided, which are symmetrically distributed about the slider, and each clamping plate is connected to an arc-shaped rubber block on one side.

[0008] Furthermore, one end of the clamping plate is movably connected to the fixed plate, and the other end of the clamping plate is movably connected to the outer wall of the slider.

[0009] Furthermore, the placement plate is provided with constraint holes, and one end of the connecting rope passes through the constraint holes on the placement plate. The impact head, in conjunction with the connecting rope, moves vertically under the constraint.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the impact resistance test device not only realizes the fixation of the sample by the fixing device, thus preventing the sample from falling off the device and injuring the operator when it is impacted, but also realizes that the impact head structure makes the impact resistance test easier to control, saves hammer loading time and reduces labor costs. By placing the sample into the partition box, the sample comes into contact with the outer wall of the fixed plate, causing the fixed plate to slide backward, which compresses the return spring and the limiting block slides to the appropriate position in the limiting groove. The two fixed plates can then be used to clamp and limit the sample laterally, ensuring that the sample will not move or rotate during the impact process, thereby improving the accuracy of the impact resistance test. A partition box is installed above the base to protect workers from injury caused by flying debris; By raising impact heads of different masses to a certain height and then letting them fall freely, different impact forces are applied to the sample, making the testing more comprehensive. Rubber pads are placed at the bottom of the equipment to reduce the damage to the device itself caused by the residual energy after the impact. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional structural diagram of the experimental box of this utility model; Figure 2 This is a schematic diagram of the main cross-sectional structure of the experimental box of this utility model; Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 4 This is a partial top view cross-sectional structural diagram of the present invention; Figure 5 For the present utility model Figure 4 A magnified structural diagram of point A in the middle.

[0013] The following are the labels in the attached diagram: 1. Experimental box; 2. Observation door; 3. Monitor; 4. Handle; 5. Caster wheel; 6. Partition box; 601. Guide groove; 7. Support plate; 8. Placement plate; 9. Motor; 10. Rope winder; 11. Impact head; 12. Ruler; 13. Clamping plate; 14. Slider; 15. Base plate; 16. Return spring; 17. Fixing plate; 18. Limiting block; 19. Movable seat; 20. Limiting groove; 21. Connecting rope. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Please see Figures 1-5 An embodiment of the present invention provides an impact resistance performance test device, including a test box 1 and casters 5. Casters 5 are provided on both sides of the bottom end of the test box 1. An observation door 2 is provided on the outside of the test box 1, and a handle 4 is provided on the outside of the observation door 2. A display 3 is provided at one end of the outside of the test box 1. A partition box 6 is provided inside the test box 1, and support plates 7 are fixed at both ends inside the partition box 6. The partition box 6 has guide grooves 601 on both sides inside, and one end of the slider 14 extends into the guide groove 601. The slider 14 is slidably connected to the guide groove 601. Specifically, such as Figure 2 , Figure 4 As shown, during use, the two sliders 14 slide outward in the guide groove 601. The guide groove 601 can limit the range of motion of the sliders 14 and prevent the sliders 14 from shaking and swaying during the sliding process. The top of the support plate 7 is connected to the placement plate 8, and a motor 9 is provided on one side of the top of the placement plate 8; The placement plate 8 is provided with a constraint hole. One end of the connecting rope 21 passes through the constraint hole on the placement plate 8. The impact head 11 moves vertically under the constraint in conjunction with the connecting rope 21. Specifically, such as Figure 2As shown, when in use, the motor 9 is started, and the motor 9 drives the connecting rope 21 to perform winding work, so that the impact head 11 rises as the connecting rope 21 contracts. By adjusting the speed of the motor 9, the movement speed of the impact head 11 can be precisely controlled. With the help of the motor 9 to control the extension and retraction of the connecting rope 21, the impact head 11 can be accurately positioned at the specified impact position. The output shaft of motor 9 is connected to rope winder 10, and a connecting rope 21 is evenly wound on the outside of rope winder 10. The bottom end of connecting rope 21 is connected to impact head 11. A scale 12 is connected to one side of the back of placement plate 8. A fixing component is provided inside partition box 6, and the fixing component includes a bottom plate 15 inside partition box 6. The bottom plate 15 is fixed to the outside of support plate 7. A return spring 16 is provided at the top of the bottom plate 15. One end of the return spring 16 is connected to the outer wall of support plate 7. The other end of the return spring 16 is connected to a fixing plate 17. Movable seats 19 are connected to both sides of fixing plate 17. A clamping plate 13 is movably connected to one side of movable seat 19. A slider 14 is movably connected to one end of clamping plate 13. Four clamping plates 13 are provided, and the four clamping plates 13 are symmetrically distributed about the slider 14. An arc-shaped rubber block is connected to one side of each clamping plate 13. One end of the clamping plate 13 is movably connected to the fixed plate 17, and the other end of the clamping plate 13 is movably connected to the outer wall of the slider 14. Specifically, such as Figure 2 , Figure 3 , Figure 4 As shown, during use, the sample is placed in the test chamber 1, and the two sliders 14 are slid outward in the guide groove 601. The sliders 14 drive the clamping plate 13 to separate to both sides through the movable seat 19. At this time, the sample is placed inside. The sliders 14 are released, and under the action of the return spring 16, the limiting block 18 on the fixed plate 17 slides to the appropriate position in the limiting groove 20. The clamping plate 13 moves towards the middle and fixes the sample. The stable placement of the sample can avoid collision and damage to other parts of the test device due to sample movement. Limiting blocks 18 are fixed to the bottom of the fixed plate 17, and limiting grooves 20 are provided on both sides of the top of the bottom plate 15. The limiting blocks 18 are slidably connected to the limiting grooves 20. Specifically, such as Figure 3 , Figure 4 , Figure 5 As shown, during use, the sample is placed in the partition box 6 so that the sample abuts against the outer wall of the fixing plate 17, causing the fixing plate 17 to slide backward, which compresses the return spring 16. The limiting block 18 slides to the appropriate position in the limiting groove 20, and the two fixing plates 17 can be used to clamp and limit the sample laterally. The above operation allows the experimenter to install the sample onto the experimental device more quickly and accurately, reducing experimental errors caused by inconsistent sample installation and improving the efficiency and repeatability of the experiment.

[0016] Working principle: When using this utility model, firstly, the universal wheels 5 at the bottom of the experimental box 1 can significantly reduce the required driving force and save energy consumption in scenarios where heavy objects need to be moved or long-distance transmission is required. Pull the handle 4 to place the sample into the experimental box 1. The two sliders 14 slide outward in the guide groove 601. The sliders 14 drive the clamping plate 13 to separate to both sides through the movable seat 19. At this time, the sample is placed inside. Release the sliders 14. Under the action of the return spring 16, the limiting block 18 on the fixed plate 17 slides to the appropriate position in the limiting groove 20. The clamping plate 13 moves towards the middle and fixes the sample through the clamping plate 13. Secondly, by starting the motor 9, the connecting rope 21 is wound up, causing the impact head 11 to rise as the connecting rope 21 retracts. A partition box 6 is installed at the bottom to protect the staff from injury caused by flying debris. A rubber pad is installed at the bottom of the equipment to reduce the impact force. The connecting rope 21 is made of nylon rope, which is more robust and secure. When the impact head 11 rises to a suitable height, it stops. Then, by releasing the rope reel 10, the impact head 11 impacts the sample downwards under gravity to conduct the test and detect the impact resistance of the sample.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. Impact resistance test device, including test box (1) and casters (5), the test box (1) has casters (5) on both sides of the bottom end, the test box (1) has an observation door (2) on the outside, and the observation door (2) has a handle (4) on the outside, and a display (3) is provided on one side of the test box (1). Its features are: The experimental box (1) is equipped with a partition box (6) inside, and support plates (7) are fixed at both ends inside the partition box (6). The top of the support plate (7) is connected to a placement plate (8), and a motor (9) is provided on one side of the top of the placement plate (8). The output shaft of the motor (9) is connected to a rope winder (10), and a connecting rope (21) is evenly wound on the outside of the rope winder (10). An impact head (11) is connected to the bottom end of the connecting rope (21). A scale (12) is connected to one side of the back of the placement plate (8). The partition box (6) is equipped with a fixing component inside, and the fixing component includes a bottom plate (15) set inside the partition box (6). The bottom plate (15) is fixed to the outside of the support plate (7). A return spring (16) is provided at the top of the bottom plate (15). One end of the return spring (16) is connected to the outer wall of the support plate (7), and the other end of the return spring (16) is connected to a fixing plate (17).

2. The impact resistance test apparatus according to claim 1, characterized in that: Both sides of the fixed plate (17) are connected to movable seats (19), and one side of the movable seat (19) is movably connected to a clamping plate (13). One end of the clamping plate (13) is movably connected to a slider (14). The bottom end of the fixed plate (17) is fixed with a limit block (18). The top two sides of the bottom plate (15) are provided with limit grooves (20). The limit blocks (18) are slidably connected to the limit grooves (20).

3. The impact resistance test apparatus according to claim 1, characterized in that: The partition box (6) has guide grooves (601) on both sides inside. One end of the slider (14) extends into the guide groove (601), and the slider (14) is slidably connected to the guide groove (601).

4. The impact resistance test apparatus according to claim 2, characterized in that: There are four clamping plates (13), which are symmetrically distributed about the slider (14). Each clamping plate (13) is connected to an arc-shaped rubber block on one side.

5. The impact resistance testing apparatus according to claim 2, characterized in that: One end of the clamping plate (13) is movably connected to the fixing plate (17), and the other end of the clamping plate (13) is movably connected to the outer wall of the slider (14).

6. The impact resistance test apparatus according to claim 1, characterized in that: The placement plate (8) is provided with a constraint hole, and one end of the connecting rope (21) passes through the constraint hole on the placement plate (8). The impact head (11) moves vertically under the constraint in conjunction with the connecting rope (21).

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