A tensile testing machine protective cover plate convenient to open and close

Abstract

The utility model relates to tension testing machine technical field discloses a tension testing machine protection cover plate convenient to open and shut, including base, one side fixedly connected with workbench no.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing machine technology, and in particular to a protective cover for a tensile testing machine that is easy to open and close. Background Technology

[0002] Tensile testing machines, as key equipment for testing the mechanical properties of materials, are widely used to detect tensile strength, yield strength, and other indicators of materials such as metals, plastics, and rubber. During the test, fragments may fly when the specimen breaks. Therefore, the protective cover plate is an indispensable safety protection component of the tensile testing machine. It must not only have reliable protective performance, but also meet the requirements of easy observation and convenient operation during the test to ensure the safety and efficiency of the test.

[0003] In existing technologies, the protective cover of tensile testing machines mostly adopts a hinged flip-top structure. Its mechanical structure mainly consists of a cover body made of metal sheet, hinges fixed to the frame of the testing machine, and mechanical latches or bolts for locking the cover. The technical principle is to achieve the rotation and opening and closing of the cover through the hinges. During the test, the cover is closed, and the latches or bolts are used to lock the cover to the frame, forming a closed space to prevent fragments from flying. Observation is achieved through a glass window opened in the cover. However, the opening and closing operation of the protective cover in existing technologies is rather cumbersome. Because it is locked using latches or bolts, operators need to repeatedly manually fasten or tighten the bolts each time they clamp or remove a specimen. This not only consumes a lot of time and reduces testing efficiency, but also easily leads to operator fatigue during frequent operations, affecting the continuity of the test. At the same time, the observation window and the cover body are often simply spliced ​​together, lacking a stable rigid connection. When the testing machine vibrates during operation, the observation window is prone to shaking and shifting, making it difficult for operators to clearly and stably observe the testing process and affecting the accurate judgment of the test status. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a protective cover for a tensile testing machine that is easy to open and close. It aims to improve the traditional rigid connection structure between the cover and the observation window, which is prone to shaking of the observation window due to equipment vibration during the test. Opening and closing requires repeated twisting or fastening, which is time-consuming and has low protection reliability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective cover for a tensile testing machine that is easy to open and close, comprising a base, a workbench one fixedly connected to one side of the upper part of the base, a workbench two fixedly connected to the other side of the upper part of the base, a protective cover provided on the outer wall of the workbench two, and a locking component provided on the outer wall of the protective cover. The locking assembly includes a mounting plate, the outer wall of which is fixedly connected to the outer wall of a protective cover. A locking sleeve is fixedly connected to the inner wall of the protective cover. A fixing sleeve is slidably connected to the outer wall of the locking sleeve. An outer telescopic rod is slidably connected to the inner wall of the fixing sleeve. A button is fixedly connected to one end of the outer telescopic rod. An inner telescopic rod is fixedly connected to the outer wall of the outer telescopic rod. Two positioning rings are fixedly connected to both sides of the inner wall of the locking sleeve. A connecting rod 1 is slidably connected to the inner wall of each of the two positioning rings. A compression spring is sleeved on the outer wall of the connecting rod 1. A connecting rod 3 is fixedly connected to the outer wall of the mounting plate. Connecting plates are fixedly connected to both sides of the outer wall of the connecting rod 3. A fixing rod is fixedly connected to the inner wall of the two connecting plates. A fixing plate 3 is fixedly connected to the outer wall of the fixing rod. A window panel mounting bracket is fixedly connected to the outer wall of the fixing plate 3.

[0006] Furthermore, a second fixing plate is fixedly connected to the outer wall of the protective cover, a second connecting rod is rotatably connected to the middle of the second fixing plate, one side of the outer wall of the second fixing plate is fixedly connected to the outer wall of the second workbench, the other side of the outer wall of the second fixing plate is fixedly connected to the outer wall of the protective cover, a positioning pin is fixedly connected to the outer wall of the second fixing plate, a handle is fixedly connected to the outer wall of the protective cover, a magnetic card block is fixedly connected to the outer wall of the protective cover, and a magnetic card slot is provided inside the first workbench.

[0007] Furthermore, a lead screw is provided inside the workbench, a fixing plate is fixedly connected to the upper surface of the workbench, a protective cover is provided on the outer wall of the fixing plate, a servo motor is provided inside the protective cover, and the output end of the servo motor is rotatably connected to the outer wall of the lead screw.

[0008] Furthermore, the workbench two is internally located on the outer wall of the lead screw, and both lead screw outer walls are fixedly connected to sliding sleeves. The outer wall of the sliding sleeve is fixedly connected to a support square rod, and the outer wall of the support square rod is fixedly connected to a spring tensioner. The outer wall of the spring tensioner is equipped with a display, the lower surface of the spring tensioner is fixedly connected to a fixing ring, the lower surface of the fixing ring is fixedly connected to a connector, the lower surface of the connector is fixedly connected to a fixing disc, and the outer wall of the fixing disc is fixedly connected to a tension support rod.

[0009] Furthermore, the top of the base is provided with two fixing discs, which are fixedly connected to the bottom of the fixing plate. One of the fixing discs is fixedly connected to the outer wall of the base, and the other fixing disc is fixedly connected to the bottom of the connector.

[0010] Furthermore, a fixing slot is provided inside the fixing disc.

[0011] Furthermore, the outer wall of the window panel mounting bracket is fixedly connected to the middle of the protective cover plate, and one side of the outer wall of the protective cover plate is fixedly connected to the top of the base.

[0012] Furthermore, the bottom of the servo motor is fixedly connected to the upper surface of the fixing plate.

[0013] This utility model has the following beneficial effects: In this invention, when the protective cover is operated by the handle, the rotating structure composed of the fixed plate and the positioning pin can realize the stable opening and closing of the cover. The magnetic card block and the magnetic card slot can quickly and initially fix it. Then, by operating the button of the locking component, the outer telescopic rod drives the inner telescopic rod to move, so that the locking sleeve and the fixed sleeve are separated or locked. With the elastic action of the compression spring, a stable lock or easy unlocking is achieved, which improves the convenience of opening and closing the cover.

[0014] In this invention, a servo motor drives a lead screw to rotate, a sliding sleeve moves a support rod, and a fixing ring on the connector transmits tension to the specimen. A spring tensioner, in conjunction with a display, provides real-time data feedback. During operation, the tension can be precisely controlled to ensure reliable test data. The fixing slot of the fixed disc facilitates specimen installation and fixation. The window plate mounting bracket moves smoothly with the protective cover, ensuring a clear and stable field of view during the test. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a protective cover plate for a tensile testing machine that is easy to open and close, as proposed in this utility model. Figure 2 This is a schematic diagram of the cover plate structure of a tensile testing machine protective cover plate that is easy to open and close, as proposed in this utility model. Figure 3 A schematic diagram showing the disassembled structure of the cover plate portion of a tensile testing machine protective cover plate that is easy to open and close, as proposed in this utility model. Figure 4 A schematic diagram showing the structural breakdown of the locking assembly of a protective cover for a tensile testing machine that is easy to open and close, as proposed in this utility model. Figure 5 A cross-sectional schematic diagram of the locking assembly of a protective cover for a tensile testing machine that is easy to open and close, as proposed in this utility model; Figure 6 This is a schematic diagram of the window mounting bracket of a tensile testing machine protective cover that is easy to open and close, as proposed in this utility model.

[0016] Legend: 1. Base; 2. Protective cover; 3. Handle; 4. Fixing plate one; 5. Fixing ring; 6. Workbench one; 7. Window panel mounting bracket; 8. Workbench two; 9. Fixing disc; 10. Tension support rod; 11. Connector; 12. Support square rod; 13. Display; 14. Magnetic suction block; 15. Lead screw; 16. Sliding sleeve; 17. Spring tensioner; 18. Servo motor; 19. Protective cover; 20. Locking sleeve; 21. Fixing sleeve; 22. Mounting plate; 23. External telescopic rod; 24. Connecting rod one; 25. Compression spring; 26. Positioning ring; 27. Fixing plate two; 28. Connecting rod two; 29. ​​Positioning pin; 30. Connecting plate; 31. Fixing plate three; 32. Connecting rod three; 33. Fixing rod; 34. Button; 35. Internal telescopic rod; 36. Fixing slot; 37. Magnetic suction slot. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3 The present invention provides an embodiment of a protective cover for a tensile testing machine that is easy to open and close, comprising a base 1, a workbench 6 fixedly connected to one side of the upper part of the base 1, a workbench 8 fixedly connected to the other side of the upper part of the base 1, a protective cover 2 provided on the outer wall of the workbench 8, the workbench 6 and the workbench 8 being fixedly fixed to the upper two sides of the base 1 respectively, and the protective cover 2 on the outer wall of the workbench 8 providing safety protection for the test area, and a locking component provided on the outer wall of the protective cover 2; The locking assembly includes a mounting plate 22, whose outer wall is fixedly connected to the outer wall of the protective cover 2. A locking sleeve 20 is fixedly connected to the inner wall of the protective cover 2. Inside the locking sleeve 20, two positioning rings 26 are fixed to both sides of the sleeve wall by interference fit, ensuring the sliding of the connecting rod 24 and restricting the movement of the protective cover 2, ensuring that the protective cover 2 is in a stable closed state during the test. The inner wall of the fixing sleeve 21 is slidably connected to the outer telescopic rod 23. The fixing sleeve 21 is fixedly installed at the corresponding position on the workbench 8 and cooperates with the guide protrusion on the outer wall of the outer telescopic rod 23, which can effectively prevent the outer telescopic rod 23 from rotating and shifting during the sliding process. A button 34 is fixedly connected to one end of the outer telescopic rod 23. The operation of the button 34 can drive the outer telescopic rod 23 to move, thereby driving the inner telescopic rod 35 to move, realizing the locking and unlocking of the protective cover 2. The outer wall of the outer telescopic rod 23 is fixedly connected to the inner telescopic rod 35, and the inner walls of the locking sleeve 20 are fixedly connected to the inner telescopic rod 35. There are two positioning rings 26, and the inner walls of the two positioning rings 26 are slidably connected to the connecting rod 24. The two positioning rings 26 are fixed on both sides of the inner wall of the locking sleeve 20, which plays a positioning and guiding role for the connecting rod 24, ensuring that the connecting rod 24 can slide stably on the inner wall of the positioning rings 26 and preventing the connecting rod 24 from deviating during the movement. A compression spring 25 is sleeved on the outer wall of the connecting rod 24. The outer wall of the mounting plate 22 is fixedly connected to the connecting rod 32. The two sides of the outer wall of the connecting rod 32 are fixedly connected to the connecting plates 30. The inner walls of the two connecting plates 30 are fixedly connected to the fixing rods 33. The outer walls of the fixing rods 33 are fixedly connected to the fixing plate 31. The connecting rod 32 is rigidly connected to the mounting plate 22 by bolts. The connecting plates 30 at both ends and the fixing rods 33 form a stable support structure. The outer wall of the fixing plate 31 is fixedly connected to the window panel mounting bracket 7. The connecting rod 32 is fixed to the outer wall of the mounting plate 22 and is connected to the fixing plate 31 through the connecting plates 30 and the fixing rods 33, finally fixing the window panel mounting bracket 7.

[0019] Specifically, when the protective cover 2 needs to be closed, the operator moves the protective cover 2 towards the workbench 28. When the protective cover 2 reaches the closed position, the locking sleeve 20 and the fixed sleeve 21 automatically align and move closer to each other. Under the elastic action of the compression spring 25, the two are tightly engaged, thereby restricting the movement of the protective cover 2 and keeping it stably in the closed state. To open the protective cover 2, the operator presses the button 34. The button 34 drives the outer telescopic rod 23 to move, which in turn causes the inner telescopic rod 35 to move synchronously. The compression spring 25 is compressed, and the originally tightly engaged locking sleeve 20 and fixed sleeve 21 separate, releasing the restriction on the protective cover 2. This allows for convenient and stable opening and closing of the protective cover 2. Reference Figures 1-6A fixing plate 27 is fixedly connected to the outer wall of the protective cover 2. A connecting rod 28 is rotatably connected to the middle of the fixing plate 27. The rotation of the connecting rod 28 enables the protective cover 2 to open and close stably. One side of the outer wall of the fixing plate 27 is fixedly connected to the outer wall of the workbench 8, and the other side of the outer wall of the fixing plate 27 is fixedly connected to the outer wall of the protective cover 2. A positioning pin 29 is fixedly connected to the outer wall of the fixing plate 27. The positioning pin 29 fixes the protective cover 2 and the workbench 8 through the fixing plate 27. A handle 3 is fixedly connected to the outer wall of the protective cover 2. A magnetic clamping block 14 is attached to the workbench 6. A magnetic clamping slot 37 is provided inside the workbench 6. The magnetic clamping block 14 and the magnetic clamping slot 37 work together to further secure the protective cover 2. A lead screw 15 is installed inside the workbench 6. A fixing plate 4 is fixedly connected to the upper surface of the workbench 6. A protective cover 19 is installed on the outer wall of the fixing plate 4. A servo motor 18 is installed inside the protective cover 19. The output end of the servo motor 18 is rotatably connected to the outer wall of the lead screw 15. A second workbench 8 is located inside the outer wall of the lead screw 15. Sliding sleeves 16 are fixedly connected to the outer walls of both lead screws 15. A supporting square rod 12 is fixedly connected to the outer wall. A spring tensioner 17 is fixedly connected to the outer wall of the supporting square rod 12. A display 13 is installed on the outer wall of the spring tensioner 17. Sliding sleeves 16 are fixedly connected to the outer walls of two lead screws 15. The supporting square rod 12 is fixedly connected to the outer wall of the sliding sleeves 16. The lead screws 15 convert the rotational motion into the linear motion of the supporting square rods 12 through the cooperation of the sliding sleeves 16, realizing the stable output of the tension. A fixing ring 5 is fixedly connected to the lower surface of the spring tensioner 17. A connector 11 is fixedly connected to the lower surface of the fixing ring 5. The lower surface of the connector 11 is fixedly connected to the connector 11. A fixed disc 9 is fixedly connected to the base 1. A tension support rod 10 is fixedly connected to the outer wall of the fixed disc 9. Two fixed discs 9 are set on the top of the base 1. The two fixed discs 9 are fixedly connected to the bottom of the fixed plate 4. One side of the outer wall of one fixed disc 9 is fixedly connected to the outer wall of the base 1. The other fixed disc 9 is fixedly connected to the bottom of the connector 11. A fixed slot 36 is opened inside the fixed disc 9. The outer wall of the window panel mounting bracket 7 is fixedly connected to the middle of the protective cover plate 2. One side of the outer wall of the protective cover plate 2 is fixedly connected to the top of the base 1. The bottom of the servo motor 18 is fixedly connected to the upper surface of the fixed plate 4.

[0020] Specifically, rotating the handle 3 causes the protective cover 2 to open and close. The positioning pin 29 is fixed to the relative position of the workbench 2 8. When the protective cover 2 is closed, the magnetic card block 14 is inserted into the magnetic card slot 37 to enhance the fixing effect. The servo motor 18 is started to drive the lead screw 15 to rotate. The sliding sleeve 16 makes the support square rod 12 move linearly and outputs tension. The tension is transmitted to the specimen through the fixing ring 5. The fixing slot 36 is used to fix the specimen. The spring tensioner 17 senses the tension. The display 13 displays the data synchronously. The test is observed through the window plate on the window plate mounting bracket 7.

[0021] Working principle: First, when the tensile testing machine is needed, the servo motor 18 is started to drive the lead screw 15 inside the worktable 6 and the worktable 8 to rotate. The fixed plate 4 on the worktable 6 has a protective cover 19 to protect the servo motor 18. When the lead screw 15 rotates in the forward direction, the sliding sleeve 16 will drive the support rod 12 to move upward. The tensile force is transmitted to the tensile support rod 10 through the fixed ring 5, applying an upward tensile force to the specimen. The display 13 displays the test data. The protective cover 2 is connected to the worktable 8 through the fixed plate 27. The connecting rod 28 and the positioning pin 29 on the fixed plate 27 ensure that the cover rotates smoothly. The handle 3 facilitates the opening and closing of the cover. The magnetic card block 14 on the outer wall of the protective cover 2 works with the magnetic card slot 37 of the worktable 6 to assist in fixing.

[0022] Secondly, in the locking assembly, the mounting plate 22 is fixed to the protective cover plate 2, and the connecting rod 32 connected to it is connected to the window panel mounting bracket 7 through the connecting plate 30 and the fixing plate 31. When the protective cover plate 2 is closed, the locking sleeve 20 and the fixing sleeve 21 engage, the outer telescopic rod 23 is pushed and moved, and the inner telescopic rod 35 squeezes the compression spring 25 on the connecting rod 24. The positioning ring 26 ensures the stability of the connecting rod 24, and the compression spring 25 rebounds to make the two tightly engage, so that the protective cover plate 2 is stable and the window panel mounting bracket 7 is prevented from shaking due to equipment vibration, ensuring a stable field of view. Pressing the button 34, the outer telescopic rod 23 drives the inner telescopic rod 35 to move, the compression spring 25 contracts, and the fixing sleeve 21 separates from the locking sleeve 20. The cooperation of each component of the locking assembly makes the protective cover plate 2 move smoothly and drives the window panel mounting bracket 7 to move smoothly and synchronously, avoiding it from being subjected to additional stress and protecting the structural integrity.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective cover for a tensile testing machine that is easy to open and close, comprising a base (1), characterized in that: A workbench one (6) is fixedly connected to one side of the upper part of the base (1), and a workbench two (8) is fixedly connected to the other side of the upper part of the base (1). A protective cover plate (2) is provided on the outer wall of the workbench two (8), and a locking component is provided on the outer wall of the protective cover plate (2). The locking assembly includes a mounting plate (22), the outer wall of which is fixedly connected to the outer wall of the protective cover (2). A locking sleeve (20) is fixedly connected to the inner wall of the protective cover (2). A fixing sleeve (21) is slidably connected to the outer wall of the locking sleeve (20). An outer telescopic rod (23) is slidably connected to the inner wall of the fixing sleeve (21). A button (34) is fixedly connected to one end of the outer telescopic rod (23). An inner telescopic rod (35) is fixedly connected to the outer wall of the outer telescopic rod (23). The inner walls of the locking sleeve (20) are fixedly connected to both sides. There are two positioning rings (26), and the inner walls of the two positioning rings (26) are slidably connected to connecting rod one (24). The outer wall of the connecting rod one (24) is fitted with a compression spring (25). The outer wall of the mounting plate (22) is fixedly connected to connecting rod three (32). The outer walls of the connecting rod three (32) are fixedly connected to connecting plates (30) on both sides. The inner walls of the two connecting plates (30) are fixedly connected to fixing rods (33). The outer walls of the fixing rods (33) are fixedly connected to fixing plate three (31). The outer walls of the fixing plate three (31) are fixedly connected to window panel mounting bracket (7).

2. The protective cover plate for a tensile testing machine that is easy to open and close according to claim 1, characterized in that: The outer wall of the protective cover (2) is fixedly connected to a second fixing plate (27). The middle part of the second fixing plate (27) is rotatably connected to a second connecting rod (28). One side of the outer wall of the second fixing plate (27) is fixedly connected to the outer wall of the second workbench (8). The other side of the outer wall of the second fixing plate (27) is fixedly connected to the outer wall of the protective cover (2). The outer wall of the second fixing plate (27) is fixedly connected to a positioning pin (29). The outer wall of the protective cover (2) is fixedly connected to a handle (3). The outer wall of the protective cover (2) is fixedly connected to a magnetic card block (14). The first workbench (6) is provided with a magnetic card slot (37).

3. The protective cover plate for a tensile testing machine that is easy to open and close according to claim 1, characterized in that: The workbench (6) is equipped with a lead screw (15), and a fixing plate (4) is fixedly connected to the upper surface of the workbench (6). A protective cover (19) is provided on the outer wall of the fixing plate (4). A servo motor (18) is provided inside the protective cover (19), and the output end of the servo motor (18) is rotatably connected to the outer wall of the lead screw (15).

4. A protective cover for a tensile testing machine that is easy to open and close according to claim 1, characterized in that: The workbench 2 (8) is set inside the outer wall of the lead screw (15). The outer walls of the two lead screws (15) are fixedly connected to sliding sleeves (16). The outer walls of the sliding sleeves (16) are fixedly connected to supporting square rods (12). The outer walls of the supporting square rods (12) are fixedly connected to spring tensioners (17). The outer walls of the spring tensioners (17) are equipped with displays (13). The lower surface of the spring tensioners (17) is fixedly connected to a fixing ring (5). The lower surface of the fixing ring (5) is fixedly connected to a connector (11). The lower surface of the connector (11) is fixedly connected to a fixing disc (9). The outer wall of the fixing disc (9) is fixedly connected to a tension support rod (10).

5. A protective cover for a tensile testing machine that is easy to open and close according to claim 1, characterized in that: The base (1) has two fixed discs (9) on its top. The two fixed discs (9) are fixedly connected to the bottom of the fixed plate (4). One side of the outer wall of one fixed disc (9) is fixedly connected to the outer wall of the base (1), and the other fixed disc (9) is fixedly connected to the bottom of the connector (11).

6. A protective cover for a tensile testing machine that is easy to open and close according to claim 4, characterized in that: The fixed disc (9) has a fixed slot (36) inside.

7. A protective cover for a tensile testing machine that is easy to open and close according to claim 1, characterized in that: The outer wall of the window panel mounting bracket (7) is fixedly connected to the middle part of the protective cover plate (2), and one side of the outer wall of the protective cover plate (2) is fixedly connected to the top of the base (1).

8. A protective cover for a tensile testing machine that is easy to open and close according to claim 3, characterized in that: The bottom of the servo motor (18) is fixedly connected to the upper surface of the fixing plate (4).

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