Protective pad elastic property experiment device

Abstract

The utility model discloses a protective pad elastic performance experiment device, and belongs to the technical field of protective pads. The device mainly comprises a frame body; the test board is mounted at the upper end of the frame body; the clamping mechanism is mounted on the test plate, and the clamping mechanism is provided with a second air cylinder; the wiping mechanisms are installed on the two sides of the frame body, and each wiping mechanism comprises a motor installed on the frame body; the second screw rod is mounted on the frame body; the second spiral block is mounted on the second screw rod; the connecting rod is mounted on the second spiral block; the third air cylinder is mounted at one end of the connecting rod; and the soft cotton sliver is mounted at the output end of the third air cylinder. According to the protection pad elastic performance experiment device, the wiping mechanism is arranged to wipe the surface of the protection pad, and the effect of preventing the unevenness of the surface of the protection pad from affecting the test accuracy is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of protective pads, in particular to a protective pad elasticity performance experiment device. BACKGROUND

[0002] Protective pads are usually made of materials with elasticity, such as rubber, sponge, spring, etc. The elasticity performance of these materials is one of their important physical properties, which is directly related to the effect of protective pads in practical applications.

[0003] In order to accurately evaluate the elasticity performance of protective pads, special experimental testing devices and methods are needed. These devices usually include mechanisms for applying external force, sensors for measuring deformation and force, and control systems for data recording and analysis. Through experimental testing, stress-strain curves, elastic modulus, resilience rate and other key performance indicators of protective pads under stress can be obtained.

[0004] For example, the patent with publication number CN214309954U discloses a rubber elasticity testing device. The patent uses a threaded rod and a bolt in cooperation to pull the rubber clamped by the first and second clamping pieces. When the rubber is pulled off, the threaded block will automatically thread with the threaded rod. Since the threaded block cannot move, the threaded rod cannot rotate, thereby preventing the residual force of the threaded rod from affecting the accuracy of the elasticity test of the rubber after the rubber is pulled off, and improving the test accuracy of the testing device.

[0005] In actual testing, multiple tests are usually required to improve the test results. However, during the testing process, solid particles (such as sand, dust, etc.) attached to the surface of the testing device may be shaken off onto the surface of the protective pad to be tested due to vibration and other factors, resulting in uneven surface of the protective pad to be tested, which may affect the measurement accuracy of the impact force and rebound height of the test hammer.

[0006] Therefore, it is necessary to provide a protective pad elasticity performance experiment device to solve the above problems.

[0007] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0008] Based on the above problems existing in the prior art, the present application solves the problem of providing a protective pad elasticity performance experiment device to solve the problem of solid particles (such as sand, dust, etc.) attached to the surface of the protective pad to be tested, resulting in uneven surface of the protective pad to be tested, thereby affecting the measurement accuracy.

[0009] The technical scheme adopted by the application to solve its technical problems is: a kind of protective pad elastic performance experimental device, comprising:

[0010] Frame body;

[0011] Test plate, the test plate is installed on the upper end of the frame body;

[0012] Clamping mechanism, the clamping mechanism is installed on the test plate, the clamping mechanism is used to clamp and fix protective pad use, the clamping mechanism has second cylinder;

[0013] Wiping mechanism, the wiping mechanism is installed on the both sides of the frame body, and the wiping mechanism is used to wipe protective pad before testing, and the wiping mechanism comprises:

[0014] Motor, the motor is installed on the frame body;

[0015] Second screw rod, the second screw rod is installed on the frame body;

[0016] Second spiral block, the second spiral block is installed on the second screw rod;

[0017] Connecting rod, the connecting rod is installed on the second spiral block;

[0018] Third cylinder, the third cylinder is installed at one end of the connecting rod;

[0019] Soft cotton, the soft cotton is installed on the output end of the third cylinder.

[0020] Further, the clamping mechanism includes a first screw rod rotatably arranged between the frame bodies, one end of the first screw rod is fixedly provided with a hand wheel, two groups of threads with opposite thread directions are formed in the first screw rod, first spiral blocks are threadedly connected to the threads respectively, a second cylinder is fixedly arranged on the first spiral block, a guide groove is formed in the test plate, an output end of the second cylinder vertically penetrates through the guide groove and is fixedly connected to a mounting block, a double-shaft cylinder is fixedly installed at the upper end of the mounting block, and second clamping plates are fixedly arranged at the output ends of the double-shaft cylinder.

[0021] Further, a testing mechanism is fixedly arranged above the test plate on the frame body, the testing mechanism includes a displacement assembly fixedly arranged at the upper end of the frame body, the displacement assembly includes an installation plate with a through hole, a test hammer is slidably arranged in the through hole, two groups of first cylinders are fixedly arranged on the installation plate, and first clamping plates are fixedly arranged at the output ends of the first cylinders.

[0022] Furthermore, a sliding groove is fixedly provided at the lower end of the mounting plate, a slider is slidably provided on the sliding groove, a fixing ring is fixedly provided on the test hammer, the fixing ring is fixedly connected to the slider, and corresponding scales are opened inside the sliding groove.

[0023] Furthermore, mounting tubes are fixedly installed on both sides of the lower end of the test plate, the output end of the motor is fixedly connected to one end of the second screw, the second screw has two sets of threads with opposite thread directions, a fixing block is fixedly installed at the end of the connecting rod, a mounting shell is fixedly installed at the output end of the third cylinder, and the soft cotton strip is detachably installed inside the mounting shell.

[0024] The beneficial effects of this application are: the protective pad elasticity performance testing device provided by this application, by setting up a wiping mechanism to wipe the surface of the protective pad, achieves the effect of preventing the surface of the protective pad from being uneven and affecting the accuracy of the test.

[0025] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is an overall schematic diagram of a protective pad elasticity performance testing device according to this application;

[0028] Figure 2 for Figure 1 A schematic diagram of the clamping mechanism;

[0029] Figure 3 for Figure 1 A schematic diagram of the testing facility in China;

[0030] Figure 4 for Figure 1 A schematic diagram of the wiping mechanism;

[0031] The following are the labeling elements in the figure:

[0032] 1. Frame; 2. Testing mechanism; 3. Clamping mechanism; 4. Wiping mechanism; 5. Test plate; 6. Mounting tube; 7. Guide groove; 20. Displacement assembly; 21. First cylinder; 22. First clamping plate; 23. Mounting plate; 24. Fixing ring; 25. Test hammer; 26. Slide groove; 30. First screw; 31. First spiral block; 32. Handwheel; 33. Second cylinder; 34. Dual-shaft cylinder; 35. Second clamping plate; 40. Motor; 42. Second screw; 41. Second spiral block; 43. Connecting rod; 44. Third cylinder; 45. Mounting shell; 46. Soft cotton strip. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0035] like Figures 1-2 As shown, this application provides a protective pad elasticity performance testing device, including a frame 1 and a test plate 5 fixedly installed on the upper end of the frame 1. The test plate 5 is used to place the protective pad to be tested.

[0036] Meanwhile, a clamping mechanism 3 is fixedly installed on the test plate 5. The clamping mechanism 3 is used to clamp and fix the protective pad so that the elasticity test can be carried out smoothly.

[0037] The clamping mechanism 3 includes a first screw 30 rotatably disposed between the frame bodies 1, and a handwheel 32 is fixedly disposed at one end of the first screw 30 to facilitate rotation of the first screw 30;

[0038] It should be noted that the first screw 30 has two sets of threads with opposite directions (not shown in the figure), and the first helical blocks 31 are threadedly connected to the two sets of threads respectively. So when the handwheel 32 is turned to drive the first screw 30 to rotate between the frame 1, the two sets of first helical blocks 31 will move closer or further apart from each other.

[0039] Meanwhile, a second cylinder 33 is fixedly installed on the two sets of first spiral blocks 31, and a guide groove 7 is opened on the test plate 5. The output end of the second cylinder 33 passes vertically through the guide groove 7 and is fixedly connected to the mounting block (not shown in the figure). A dual-axis cylinder 34 is fixedly installed on the upper end of the mounting block.

[0040] The output ends of the dual-axis cylinder 34 are fixedly provided with second clamping plates 35. The second clamping plates 35 are used to directly contact the fixed protective pad, so that the dual-axis cylinder 34 can drive the two second clamping plates 35 to move away from or closer to each other, thereby achieving the purpose of clamping.

[0041] When fixation is required, the operator can rotate the handwheel 32 to drive the first screw 30 to rotate, thereby bringing the two sets of first spiral blocks 31 closer to each other. At this time, the first spiral blocks 31 push the second cylinder 33 to move along the guide groove 7 until the second clamping plates 35 at both ends touch the protective pad and stop. At this time, the dual-shaft cylinder 34 drives the second clamping plates 35 on both sides to move closer to each other, thereby clamping the protective pad with the second clamping plates 35. Conversely, it can be unlocked.

[0042] like Figure 1 and Figure 3 As shown, a test mechanism 2 is fixedly installed at the upper end of the frame 1, directly above the test plate 5. This test mechanism 2 is used to test the elastic performance of the protective pad.

[0043] The testing mechanism 2 includes a displacement component 20 fixedly installed on the upper end of the frame 1. The displacement component 20 adopts a dual-axis screw transmission mechanism commonly used in the prior art and applicable to this embodiment to adjust the relative positions of each component of the testing mechanism 2, thereby performing elastic performance testing on the protective pad according to a preset program.

[0044] The displacement component 20 includes a mounting plate 23 with a through hole (not shown in the figure), and a test hammer 25 is slidably disposed inside the through hole. The test hammer 25 is used to apply an impact to the protective pad, thereby testing the elastic performance of the protective pad by the rebound.

[0045] Meanwhile, in order to carry out the test smoothly, two sets of first cylinders 21 are fixedly installed on the mounting plate 23. The output end of the first cylinder 21 is fixedly installed with a first clamping plate 22. The first clamping plate 22 is used to clamp and fix the test hammer 25 when the test hammer 25 is not used for testing, so as to prevent it from falling off when the test is not being conducted.

[0046] Furthermore, a slide groove 26 is fixedly provided at the lower end of the mounting plate 23, and a slider (not shown in the figure) is slidably provided on the slide groove 26. At the same time, a fixing ring 24 is fixedly provided on the test hammer 25, and the fixing ring 24 is fixedly connected to the slider. Thus, when the test starts, the test hammer 25 will drive the slider to slide vertically along the slide groove 26.

[0047] Meanwhile, corresponding scales are provided inside the groove 26 to record the rebound height of the test hammer 25, thereby evaluating the elastic performance of the protective pad.

[0048] Before the test begins, a protective pad sample that meets the test standards is selected and placed on the test plate 5. Then, by rotating the handwheel 32, the first screw 30 is rotated, causing the two sets of first spiral blocks 31 to come closer together. At this time, the first spiral blocks 31 push the second cylinder 33 to move along the guide groove 7 until the second clamping plates 35 at both ends touch the protective pad and stop. At the same time as they touch, the dual-axis cylinder 34 drives the second clamping plates 35 on both sides to move closer together, thereby clamping and fixing the protective pad with the second clamping plates 35.

[0049] Once clamping is complete, the displacement component 20 can be activated to move the test hammer 25 to the designated position to complete the test. After the movement is complete, the first cylinder 21 can be activated to move the first clamping plate 22 away from each other, thereby releasing the test hammer 25. At this time, the test hammer 25 will be subjected to gravity and will impact the protective pad vertically downward.

[0050] As the test hammer 25 moves vertically downward, it will cause the slider to slide within the groove 26. When the test hammer 25 hits the protective pad, it will rebound, and at the same time, it will cause the slider to move synchronously. Thus, its rebound height will be recorded by the scale inside the groove 26. Finally, by reading the scale value, the rebound height of the test hammer 25 and the elastic performance of the protective pad can be calculated.

[0051] like Figure 1 and Figure 4 As shown, in order to prevent solid particles attached to the surface of the testing device from being shaken off to the surface of the protective pad due to vibration and other factors during the test, thereby causing unevenness on the surface of the protective pad and affecting the accuracy of the impact force and rebound height measurement of the test hammer 25, a wiping mechanism 4 is fixedly installed on both sides of the frame 1. The wiping mechanism 4 is used to wipe the protective pad before the test to further clean the solid particles on the surface of the protective pad.

[0052] The wiping mechanism 4 includes mounting tubes 6 fixedly installed on both sides of the lower end of the test plate 5, and a second screw 42 rotatably installed between the mounting tubes 6 and the frame 1. At the same time, a motor 40 is fixedly installed at one end of the mounting tubes 6, and the output end of the motor 40 is fixedly connected to one end of the second screw 42, so that starting the motor 40 can drive the second screw 42 to rotate on the mounting tubes 6.

[0053] It should be noted that the second screw 42 has two sets of threads with opposite directions (not shown in the figure), and the two sets of threads are respectively threaded with second spiral blocks 41. So when the starting motor 40 drives the second screw 42 to rotate on the mounting tube 6, it will drive the two sets of second spiral blocks 41 to move closer or further apart.

[0054] Furthermore, connecting rods 43 are fixedly installed at both ends of the second spiral block 41, and a fixing block is fixedly installed at the end of the connecting rod 43. A third cylinder 44 is fixedly installed at the upper end of the fixing block, and a mounting shell 45 is fixedly installed at the output end of the third cylinder 44. A soft cotton strip 46 is detachably installed inside the mounting shell 45. Thus, when the surface of the protective pad needs to be wiped after the first test, the second cylinder 33 is first started to drive the fixed protective pad to move vertically upward until it moves to the appropriate position and then stops.

[0055] Then, the motor 40 can be started to drive the second screw 42 to rotate on the mounting tube 6, thereby adjusting the distance between the two sets of second spiral blocks 41 to adapt to the thickness of the protective pad. After the adjustment is completed, the third cylinder 44 is started to push the soft cotton strip 46 along the surface of the protective pad, thereby achieving the purpose of cleaning the surface of the protective pad. After wiping is completed, the second cylinder 33 can be started to drive the protective pad back to the test plate 5 to complete the subsequent test.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A test apparatus for the elastic properties of a protective pad, characterized in that: include: Frame (1); Test board (5), which is installed on the upper end of the frame (1); A clamping mechanism (3) is mounted on the test plate (5). The clamping mechanism (3) is used to clamp and fix the protective pad. The clamping mechanism (3) has a second cylinder (33). A wiping mechanism (4) is installed on both sides of the frame (1). The wiping mechanism (4) is used to wipe the protective pad before testing. The wiping mechanism (4) includes: A motor (40) is mounted on the frame (1); The second screw (42) is mounted on the frame (1); The second spiral block (41) is mounted on the second screw (42); A connecting rod (43) is mounted on the second spiral block (41); A third cylinder (44) is mounted on one end of the connecting rod (43); A soft tampon (46) is installed on the output end of the third cylinder (44).

2. The protective pad elasticity performance testing device according to claim 1, characterized in that: The clamping mechanism (3) includes a first screw (30) rotatably disposed between the frame (1), a handwheel (32) fixedly disposed at one end of the first screw (30), two sets of threads with opposite thread directions are provided on the first screw (30), a first spiral block (31) is threadedly connected to the threads respectively, a second cylinder (33) is fixedly disposed on the first spiral block (31), a guide groove (7) is provided on the test plate (5), the output end of the second cylinder (33) passes vertically through the guide groove (7) and is fixedly connected to the mounting block, a double-axis cylinder (34) is fixedly mounted on the upper end of the mounting block, and a second clamping plate (35) is fixedly disposed on the output ends on both sides of the double-axis cylinder (34).

3. The protective pad elasticity performance testing device according to claim 1, characterized in that: A testing mechanism (2) is fixedly installed on the upper end of the frame (1) directly above the test plate (5). The testing mechanism (2) includes a displacement component (20) fixedly installed on the upper end of the frame (1). The displacement component (20) includes a mounting plate (23). A through hole is opened on the mounting plate (23). A test hammer (25) is slidably installed inside the through hole. Two sets of first cylinders (21) are fixedly installed on the mounting plate (23). A first clamping plate (22) is fixedly installed at the output end of the first cylinder (21).

4. The protective pad elasticity performance testing device according to claim 3, characterized in that: The mounting plate (23) is fixedly provided with a sliding groove (26) at its lower end. A slider is slidably provided on the sliding groove (26). A fixing ring (24) is fixedly provided on the test hammer (25). The fixing ring (24) is fixedly connected to the slider. The sliding groove (26) has corresponding scales inside.

5. The protective pad elasticity performance testing device according to claim 1, characterized in that: The test plate (5) has mounting tubes (6) fixedly installed on both sides of its lower end. The output end of the motor (40) is fixedly connected to one end of the second screw (42). The second screw (42) has two sets of threads with opposite thread directions. The end of the connecting rod (43) is fixedly provided with a fixing block. The output end of the third cylinder (44) is fixedly provided with a mounting shell (45). The soft cotton strip (46) is detachably installed inside the mounting shell (45).

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