Elastic buffer protective device for toughness tester

Abstract

This utility model discloses an elastic buffer protective device for a toughness tester, relating to the technical field of toughness testers. It includes a worktable with two fixed plates mounted on its upper part and a protective cover with a bottom opening. The protective cover is located between the two fixed plates, and two horizontal rods are fixedly installed at both ends of the cover. A first spring and a buffer block are slidably sleeved on the outer side of each horizontal rod. The first spring is located between the buffer block and the fixed plate, and the buffer block is mounted on the fixed plate. The top of the protective cover has a top opening. This elastic buffer protective device for the toughness tester, by setting up fixed plates and a protective cover, uses the protective cover to cover the area where the sample is tested and fixed, thereby providing protection and preventing injury to personnel from fragments generated by sample breakage. This structure is simple to operate and convenient to use, thus effectively improving the safety of using the toughness tester.

Description

Technical Field

[0001] This utility model relates to the field of toughness testing instrument technology, specifically to an elastic buffer protective device for a toughness testing instrument. Background Technology

[0002] Toughness, a concept in physics, represents a material's ability to absorb energy during plastic deformation and fracture. The better the toughness, the lower the likelihood of brittle fracture. In materials science and metallurgy, toughness refers to a material's resistance to fracture when subjected to a force that causes deformation; it is defined as the ratio of the energy a material can absorb before fracture to its volume. A toughness tester is a device used to evaluate the deformation and fracture resistance of materials or products under stress, and it is widely used in medical devices, materials science, engineering, and other fields.

[0003] In the prior art, a toughness testing device with authorization announcement number CN216051167U includes a workbench and a toughness testing machine fixedly installed on the upper surface of the workbench. The upper surface of the workbench is provided with a positioning clamping mechanism, and the lower surface of the workbench is provided with a synchronous adjustment mechanism. The positioning clamping mechanism includes two clamping bodies and an air pump. A connecting plate and a partition plate located at the bottom of the connecting plate are fixedly installed inside the clamping body. A multi-stage telescopic rod with a number of not less than six communicating with the connecting plate is fixedly installed on the lower surface of the connecting plate. While the above-mentioned solution has many advantages, it also has the following disadvantages: The device uses a positioning clamping mechanism to fix the sample, and then the pressure head on the toughness tester presses down on the sample. During the test, the fragments generated by the sample breaking will fly everywhere, which can easily cause personal injury, thus affecting the safety of the toughness tester. Utility Model Content

[0004] The purpose of this invention is to provide an elastic buffer protective device for a toughness tester, so as to solve the problem of low safety in the use of current toughness testers as mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elastic buffer protective device for a toughness tester, comprising a worktable, two fixed plates mounted on the upper part of the worktable, and a protective cover with a bottom opening, the protective cover being located between the two fixed plates, and two horizontal rods fixedly mounted at both ends of the protective cover, a first spring and a buffer block being slidably sleeved on the outer side of the horizontal rods, the first spring being located between the buffer block and the fixed plate, the buffer block being mounted on the fixed plate, a top opening being provided on the top of the protective cover, a positioning clamping mechanism for clamping and fixing the sample being provided on the upper part of the worktable, and a toughness tester for testing the toughness of the sample being provided, the toughness tester being located on one side of the positioning clamping mechanism, and the protective cover covering the outside of the positioning clamping mechanism.

[0006] Preferably, a through-type buffer groove is provided on one side of the fixed plate, and a longitudinal rod is fixedly provided on the inner wall of the buffer groove. A through hole is provided at the corresponding position of the buffer block relative to the longitudinal rod, and the buffer block is slidably sleeved on the outside of the longitudinal rod through the through hole. Three second springs are slidably sleeved on the outside of the longitudinal rod, and the two buffer blocks on the fixed plate are respectively located between the two second springs. The longitudinal rod and the transverse rod are arranged perpendicularly and staggered to each other.

[0007] Preferably, the protective cover has an opening at the front end, a through-hole is provided on the top wall inside the opening, and connecting grooves are provided on both inner walls of the opening. A baffle is slidably provided between the two connecting grooves, and the baffle is adapted to the cavity of the placement opening.

[0008] Preferably, a stabilizing frame is fixedly installed at the top opening of the protective cover. An annular groove is formed on the inner wall of the stabilizing frame, and a baffle is slidably installed in the annular groove. A through-type mounting port is opened at the upper part of the baffle. The pressure head of the toughness tester is directly opposite the center of the cavity of the mounting port, and the outer diameter of the mounting port is larger than the overall maximum outer diameter of the pressure head.

[0009] Preferably, the upper part of the fixing plate has two fixing holes, and bolts are inserted into the fixing holes. The worktable has a threaded groove at the corresponding position of each fixing hole, and the bottom thread of the bolt is set in the cavity of the threaded groove.

[0010] Preferably, a stop block is fixedly provided at the end of the transverse rod, and a third spring is slidably sleeved on the outside of the transverse rod, with the third spring located between the stop block and the buffer block.

[0011] Preferably, a wire rod is fixedly installed on the top and bottom walls inside the buffer groove, and a wire groove is opened on the top and bottom of the buffer block, and the wire rod slides in the cavity of the wire groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This application uses a fixing plate and a protective cover to cover the area where the sample is tested and fixed, thereby providing protection and preventing the fragments generated by the sample breakage from causing personal injury to the staff. This structure is simple to operate and convenient to use, thus effectively improving the safety of the toughness tester.

[0013] 2. By setting a first spring and a second spring, a buffer is formed around the protective cover. During the process of fragments flying and impacting the protective cover, the protective cover offsets part of the impact force through the elastic force of the springs and reduces the damage to the protective cover by the fragments, thereby improving the service life of the protective cover. Attached Figure Description

[0014] Figure 1This is a three-dimensional schematic diagram of the elastic buffer protective device of the toughness tester of this utility model. Figure 2 This is a three-dimensional schematic diagram of the cooperation between the protective cover and the baffle of the elastic buffer protective device of the toughness tester of this utility model; Figure 3 This is a three-dimensional front view of the protective cover of the elastic buffer protective device of the toughness tester of this utility model. Figure 4 This is a three-dimensional side view of the protective cover of the elastic buffer protective device of the toughness tester of this utility model. Figure 5 This is a three-dimensional schematic diagram of the fixing plate of the elastic buffer protective device of the toughness tester of this utility model.

[0015] The following are the labels in the diagram: 1. Workbench; 2. Fixed plate; 3. Horizontal bar; 4. First spring; 5. Buffer block; 6. Top opening; 7. Buffer groove; 8. Longitudinal bar; 9. Second spring; 10. Cover opening; 11. Baffle; 12. Stabilizer; 13. Cover plate; 14. Mounting port; 15. Bolt; 16. Stop block; 17. Third spring; 18. Wire rod; 19. Wire groove; 20. Protective cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1 - Figure 5 As shown, this utility model provides a technical solution for an elastic buffer protective device for a toughness tester, including a workbench 1, two fixed plates 2 installed on the upper part of the workbench 1, and a protective cover 20 with a bottom opening. The protective cover 20 is located between the two fixed plates 2, and two horizontal rods 3 are fixedly installed at both ends of the protective cover 20. A first spring 4 and a buffer block 5 are slidably sleeved on the outside of the horizontal rods 3. The first spring 4 is located between the buffer block 5 and the fixed plate 2. The buffer block 5 is set on the fixed plate 2. A top opening 6 is opened at the top of the protective cover 20. A positioning clamping mechanism for clamping and fixing the sample is provided on the upper part of the workbench 1, and a toughness tester for testing the toughness of the sample is provided. The toughness tester is located on one side of the positioning clamping mechanism, and the protective cover 20 covers the outside of the positioning clamping mechanism.

[0018] like Figure 1 - Figure 3As shown, a through-type buffer groove 7 is provided on one side of the fixed plate 2. A longitudinal rod 8 is fixedly installed on the inner wall of the buffer groove 7. A through hole is provided at the corresponding position of the buffer block 5 relative to the longitudinal rod 8. The buffer block 5 is slidably sleeved on the outside of the longitudinal rod 8 through the through hole. Three second springs 9 are slidably sleeved on the outside of the longitudinal rod 8. The two buffer blocks 5 on the fixed plate 2 are respectively located between the two second springs 9. The longitudinal rod 8 and the transverse rod 3 are arranged perpendicularly and staggered to each other.

[0019] like Figure 1 and Figure 2 As shown, the protective cover 20 has a cover opening 10 at the front end, and a through-type placement opening is provided on the top wall inside the cover opening 10. Connecting grooves are provided on both sides of the inner wall of the cover opening 10, and a baffle 11 is slidably arranged between the two connecting grooves. The baffle 11 is adapted to the cavity of the placement opening.

[0020] like Figure 1 - Figure 4 As shown, a stabilizing frame 12 is fixedly installed at the top opening 6 of the protective cover 20. An annular groove is formed on the inner wall of the stabilizing frame 12. A baffle 13 is slidably installed in the annular groove. A through-type mounting port 14 is opened on the upper part of the baffle 13. The pressure head on the toughness tester is directly opposite the center of the cavity of the mounting port 14. The outer diameter of the mounting port 14 is larger than the overall maximum outer diameter of the pressure head.

[0021] like Figure 5 As shown, the upper part of the fixing plate 2 has two fixing holes, and bolts 15 are inserted into the fixing holes. The worktable 1 has a threaded groove at the corresponding position of each fixing hole, and the bottom thread of the bolt 15 is set in the cavity of the threaded groove.

[0022] like Figure 1 - Figure 3 As shown, a stop block 16 is fixedly installed at the end of the transverse rod 3, and a third spring 17 is slidably sleeved on the outside of the transverse rod 3. The third spring 17 is located between the stop block 16 and the buffer block 5.

[0023] like Figure 2 and Figure 5 As shown, wire rods 18 are fixedly installed on the top and bottom walls inside the buffer groove 7, and wire grooves 19 are opened on the top and bottom of the buffer block 5, with the wire rods 18 sliding in the cavity of the wire grooves 19. Working principle: Bolt 15 is inserted into the fixing port and threaded into the threaded groove cavity to install the fixing plate 2 on the worktable 1. The protective cover 20 covers the clamping body on the worktable 1. At the same time, the pressure head of the toughness tester is aligned with the mounting port 14 and slids within the cavity of the mounting port 14. Then, the baffle 11 is opened and the test sample is fixed in the positioning and clamping mechanism on the worktable 1 through the cover 10. Then, the baffle 11 is lowered and closed to complete the test of the test sample. During the test, if debris or fragments generated during the sample test are scattered, the debris will impact the inner wall of the protective cover 20. The protective cover 20 will compress the corresponding springs according to the impact force. The springs and the outer wall of the protective cover 20 itself will form a buffer and protection, reducing the impact of the debris and playing a protective role. When the protective cover 20 is subjected to a lateral impact, the protective cover 20 will slide laterally and compress the first spring 4, thereby using the elastic force of the first spring 4 to form a lateral buffer; when the protective cover 20 is subjected to a longitudinal impact, the protective cover 20 will slide longitudinally and use the lateral rod 3 to drive the buffer block 5 to slide in the buffer groove 7, and the buffer block 5 will compress the second spring 9, thereby using the elastic force of the second spring 9 to form a longitudinal buffer. Because the shield 13 is fitted on the outside of the pressure head, it will be restricted by the toughness tester. When the protective cover 20 moves, it will cause the shield 13 to move in the annular groove in the stabilizer 12. The shield 13 can block the top opening 6 and prevent fragments from flying out of the top opening 6. The toughness tester, workbench 1, the pressure head on the toughness tester, and the positioning and clamping mechanism are all existing technical equipment or structures. Their specific forms, usage methods, and installation methods are not described in detail in this application.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. Elastic bumper guard for a toughness tester comprising a worktable (1), characterized in that: The workbench (1) is equipped with two fixed plates (2) on its upper part and a protective cover (20) with a bottom opening. The protective cover (20) is located between the two fixed plates (2), and two horizontal rods (3) are fixedly installed at both ends of the protective cover (20). A first spring (4) and a buffer block (5) are slidably sleeved on the outside of the horizontal rods (3). The first spring (4) is located between the buffer block (5) and the fixed plate (2). The buffer block (5) is set on the fixed plate (2). The top of the protective cover (20) is provided with a top opening (6).

2. The resilient cushioning guard for a toughness tester of claim 1, wherein: The fixed plate (2) has a through-type buffer groove (7) on one side. A longitudinal rod (8) is fixedly installed on the inner wall of the buffer groove (7). The buffer block (5) has a through hole at the corresponding position of the longitudinal rod (8). The buffer block (5) is slidably sleeved on the outside of the longitudinal rod (8) through the through hole. Three second springs (9) are slidably sleeved on the outside of the longitudinal rod (8). The two buffer blocks (5) on the fixed plate (2) are respectively located between the two second springs (9).

3. The resilient cushioning guard for a toughness tester of claim 1, wherein: The protective cover (20) has a cover opening (10) at the front end. A through-type placement opening is provided on the top wall inside the cover opening (10). A connecting groove is provided on both sides of the inner wall of the cover opening (10). A baffle (11) is slidably provided between the two connecting grooves. The baffle (11) is adapted to the cavity of the placement opening.

4. The resilient cushioning guard for a toughness tester of claim 3, wherein: The protective cover (20) is fixedly provided with a stabilizing frame (12) at the top opening (6). An annular groove is formed on the inner wall of the stabilizing frame (12), and a cover plate (13) is slidably provided in the annular groove. A through-type installation port (14) is opened on the upper part of the cover plate (13).

5. The resilient cushioning guard for a toughness tester of claim 1 wherein: The upper part of the fixing plate (2) has two fixing holes, and bolts (15) are inserted into the fixing holes. The workbench (1) has a threaded groove at the corresponding position of each fixing hole, and the bottom thread of the bolt (15) is set in the cavity of the threaded groove.

6. The elastomeric bumper guard for a toughness tester of claim 1, wherein: A stop block (16) is fixedly provided at the end of the transverse rod (3), and a third spring (17) is slidably sleeved on the outside of the transverse rod (3). The third spring (17) is located between the stop block (16) and the buffer block (5).

7. The resilient cushioning guard for a toughness tester of claim 2 wherein: A wire rod (18) is fixedly installed on the top and bottom walls inside the buffer groove (7). A wire groove (19) is opened on the top and bottom of the buffer block (5). The wire rod (18) slides in the cavity of the wire groove (19).

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