A strength performance testing device for composite panels

Abstract

This invention relates to the field of drilling check valve technology and discloses a strength performance testing device for composite plates, including a support, a movable frame slidably connected to the outer wall of the support, and a transverse rod fixedly connected to the side wall of the movable frame. The contact column drives the push rod to move upward synchronously and contact the bottom outer wall of the zigzag plate, forcing the zigzag plate to move upward and releasing the restriction of the zigzag plate plane on the sliding plate. When the last zigzag plate releases the restriction on the sliding plate, the tension spring will release potential energy and drive the sliding plate to move towards the contact column. The sliding plate will drive the protrusion to hit the outer wall of the limiting block, causing the limiting block to change accordingly. At this time, several limiting blocks will completely fit the shape of the protrusion, restricting the vertical sliding of the contact column. This allows multiple contact columns to initially fit against the outer wall of the plate. After the protrusion restricts the movement of the contact column, the pressure generated by the hydraulic push rod will be transmitted to the contact column through the L-shaped rail, ensuring stable pressure.

Description

Technical Field

[0001] This invention relates to the field of composite board strength testing technology, specifically to a strength performance testing device for composite boards. Background Technology

[0002] Wood composite board is a type of board made by combining multiple materials through a certain process. It uses natural wood as the base material, and the adhesives used in the production process are becoming increasingly environmentally friendly, such as water-based coatings. It conforms to the modern green and environmentally friendly home concept, is harmless to the human body and the environment, has high hardness and wear resistance, is not easily scratched or worn, and can maintain its appearance as new even after long-term use. Its internal structure is compact, and its thermal insulation performance is good, which can effectively reduce indoor heat loss or block high external temperatures, keeping the indoor temperature comfortable.

[0003] However, after the composite board is processed, it still needs to undergo a drying process. During the drying process, water-based coatings such as adhesives will dry out, and the board will exhibit slight bending and uneven surface. If strength testing is performed in this state, the pressure plate of the testing instrument will first apply pressure to the protruding parts of the board, causing a deviation in the pressure area and indirectly leading to significant differences in the composite board strength test data. To address these issues, the following solutions are proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a strength performance testing device for composite panels, including a support, a movable frame slidably connected to the outer wall of the support, a transverse rod fixedly connected to the side wall of the movable frame, and a transverse block slidably connected to the outer wall of the transverse rod, and further including:

[0005] The positioning mechanism is fixedly connected to the bottom of the transverse block and is used to apply pressure to the plate.

[0006] The limiting mechanism is fixedly connected to the outer wall of the positioning mechanism, so that the positioning mechanism can fit tightly against the outer wall of the plate.

[0007] The pushing mechanism is fixedly connected to the inner wall of the positioning mechanism and works in conjunction with the limiting mechanism to achieve rapid reset of the parts;

[0008] The movable frame and the transverse block are equipped with motors, which enable the movable frame to slide up and down along the outer wall of the support, and the transverse block to slide along the outer wall of the transverse bar. Before use, the composite board is placed on the workbench.

[0009] Preferably, the positioning mechanism includes:

[0010] The moving component is fixedly connected to the bottom of the horizontal moving block;

[0011] The snap-fit ​​assembly is slidably connected to the outer wall of the movable assembly.

[0012] Preferably, the limiting mechanism includes:

[0013] Release the component; the component slides onto the top of the moving component.

[0014] The reset component is rotatably connected to the inner wall of the movable component.

[0015] Preferred driving bodies include:

[0016] A limiting component is fixedly connected to the bottom of the moving component;

[0017] The repositioning assembly includes a push rod that is fixedly connected to the top of the contact post.

[0018] Preferably, the moving component includes a hydraulic push rod fixedly connected to the bottom of the transverse block, the output end of the hydraulic push rod is fixedly connected to several L-shaped rails, the inner wall of the several L-shaped rails is slidably connected to a contact post, and the side wall of the contact post is slidably connected to a limit block.

[0019] Under normal conditions, the contact post will be at the bottom of the L-shaped track. When the hydraulic push rod pushes the L-shaped track to slide downwards, the bottom end of the contact post will contact the outer wall of the plate, restricting the downward movement of the contact post and forcing the L-shaped track to slide downwards along the outer wall of the contact post.

[0020] Preferably, the buckle assembly includes a sliding plate slidably connected to the inner wall of the L-shaped track, a tension spring fixedly connected to the side wall of the sliding plate, a number of protruding blocks fixedly connected to the side wall of the sliding plate, and a number of arc-shaped plates fixedly connected to the bottom of the transverse block.

[0021] When all the contact posts move to a certain extent, the tension spring will pull the sliding plate along the inner wall of the L-shaped track towards the contact post. At this time, the sliding plate will cause the protrusion to hit the outer wall of the limiting block, causing the limiting block to change accordingly. At this time, several limiting blocks will completely fit the shape of the protrusion and restrict the contact post from sliding up and down.

[0022] Preferably, the release assembly includes a round rod fixedly connected to the top of the L-shaped track, a slidable plate connected to the outer wall of the round rod, an arc surface at the bottom of the slidable plate, and a spring fixedly connected to the outer wall of the slidable plate;

[0023] When the contact post moves upward, it will drive the push rod to move upward synchronously and contact the bottom outer wall of the zigzag plate, forcing the zigzag plate to move upward and releasing the restriction of the zigzag plate plane on the sliding plate. At this time, the tension spring will contract and drive the sliding plate to move in the direction of the contact post.

[0024] Preferably, the reset assembly includes a cylinder rotatably connected to the inner wall of the contact post, a long rod rotatably connected to the outer wall of the cylinder, and a short rod fixedly connected to the side wall of the long rod.

[0025] When the long rod is subjected to an upward pressure at its bottom, it will rotate counterclockwise around the cylinder and force the short rod to rotate in the same direction. When the contact post moves upward, since the long rod is longer than the short rod, it will rotate downward around the cylinder.

[0026] Preferably, the limiting component includes a support plate fixedly connected to the bottom of the L-shaped track, and a square column fixedly connected to the top of the support plate;

[0027] When the contact post falls to the bottom, the square post will push the long rod to rotate counterclockwise. When the contact post moves upward, the long rod loses the restraint of the square post and will rotate clockwise.

[0028] Preferred, the repositioning component also includes a groove formed on the side wall of the contact post, with a square sliding plate slidably connected to the inner wall of the groove.

[0029] When the long rod rotates counterclockwise, the end of the short rod will contact the outer wall of the square slide plate and force the square slide plate to slide along the inner wall of the groove. When the long rod rotates clockwise, the short rod will move away from the outer wall of the square slide plate. When the limiting block is pressed and slides, the limiting block will force the square slide plate to slide along the inner wall of the groove.

[0030] The present invention has the following beneficial effects:

[0031] (1) In view of the problem of slight bending on the surface of composite board, the present invention sets up a positioning mechanism, a limiting mechanism and a pushing rod inside the equipment. Under normal conditions, the contact column will be at the bottom of the L-shaped track. When the hydraulic push rod pushes the L-shaped track to slide downward, the bottom end of the contact column will contact the outer wall of the board. At this time, multiple contact columns will be close to the outer wall of the contact column, restricting the downward movement of the contact column. At the same time, the L-shaped track is forced to slide downward along the outer wall of the contact column. This can be regarded as the contact column moving upward. The contact column drives the pushing rod to move upward synchronously and contact the bottom outer wall of the folded plate, forcing the folded plate to move upward and releasing the restriction of the folded plate plane on the sliding plate. Since multiple sliding plates are a whole, when the last folded plate releases the restriction on the sliding plate, the tension spring will release potential energy and drive the sliding plate to move towards the contact column. The sliding plate will cause the protrusion to strike the outer wall of the limiting block, causing the limiting block to change accordingly. At this time, several limiting blocks will completely fit the shape of the protrusion, restricting the contact column from sliding up and down. Through the application of the above components, multiple contact columns are initially fitted to the outer wall of the plate. After the protrusion restricts the movement of the contact column, the pressure generated by the hydraulic push rod will be transmitted to the contact column through the L-shaped rail to ensure the stability of the pressure.

[0032] (2) The present invention utilizes the feature of the protruding block contacting the outer wall of multiple limiting blocks to combine multiple sliding plates into a whole. When a single curved plate is pushed upward, the whole composed of multiple sliding plates will not move. Only after the last curved plate is tilted upward will the whole composed of multiple sliding plates carry multiple protruding blocks to contact the outer wall of the limiting blocks, and the limiting blocks completely fit the outer wall of the protruding blocks. Through the application of the above components, when there are slight differences in the height of multiple contact columns, the protruding blocks can ensure that the contact columns are locked, reduce the slight sliding caused by the pressure of the contact columns, and ensure that the pressure of multiple contact columns on the outer wall of the plate is equal.

[0033] (3) After the contact column bends the plate, the hydraulic push rod will retract, and the protrusion will be in a clamping state. As the hydraulic push rod moves upward, the arc plate will be inserted into the inner wall of the through hole at the top of the L-shaped track. At this time, the arc surface of the arc plate will contact the side wall of the sliding plate, forcing the sliding plate to slide outward along the inner wall of the L-shaped track, while pulling the tension spring, causing the tension spring to extend and accumulate potential energy. During this process, the other side of the sliding plate will contact the arc surface and push the bent plate upward. Finally, the sliding plate is again restricted by the arc surface plane, presenting as shown in the figure. Figure 6 Through the application of the above components, the device can directly enter the standby state after completing the test;

[0034] (4) This invention utilizes the characteristic of the arc-shaped plate pushing the sliding plate to reset. A pushing mechanism is provided inside the device. When the sliding plate moves away from the limiting block, the limiting block and the contact post will lose their restraint, and the contact post will slide downwards along the inner wall of the L-shaped track. Figure 8 The state changes to Figure 7 In this state, the square column will push the long rod to rotate counterclockwise, and the end of the short rod will contact the outer wall of the square slide plate, forcing the square slide plate to slide along the inner wall of the slide groove towards the limiting block. Meanwhile, the side wall of the square slide plate will force the limiting block to change from a disordered state to a flush state. Through the application of the above components, it is ensured that when the equipment enters the standby state, the limiting block is reset as a whole. When the contact column is attached to the outer wall of the plate, the flush limiting block can effectively provide support for the protruding block. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0038] Figure 3 This is a cross-sectional schematic diagram of the moving component of the present invention;

[0039] Figure 4 This is a schematic cross-sectional view of the L-shaped track of the present invention;

[0040] Figure 5 This is a cross-sectional schematic diagram of the limiting mechanism of the present invention;

[0041] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0042] Figure 7 This is a cross-sectional schematic diagram of the reset component of the present invention;

[0043] Figure 8 This is a schematic diagram of the working state of the reset component of the present invention;

[0044] Figure 9 This is a cross-sectional view of the limiting block of the present invention in its working state.

[0045] The attached diagram lists the components represented by each number as follows:

[0046] In the diagram: 1. Positioning mechanism; 11. Moving component; 12. Buckle component; 13. Bracket; 14. Moving frame; 15. Horizontal rod; 16. Horizontal block; 111. Hydraulic push rod; 112. L-shaped track; 113. Contact column; 114. Limiting block; 121. Sliding plate; 122. Tension spring; 123. Protruding block; 124. Arc plate; 2. Limiting mechanism; 21. Release component; 22. Reset component; 211. Round rod; 212. Bending plate; 213. Arc surface; 214. Spring 1; 221. Cylinder; 222. Long rod; 223. Short rod; 3. Pushing mechanism; 31. Limiting component; 32. Returning component; 311. Support plate; 312. Square column; 322. Slide groove; 323. Square sliding plate. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1, please refer to Figure 1 - Figure 6This invention relates to a strength performance testing device for composite panels, comprising a support 13, a movable frame 14 slidably connected to the outer wall of the support 13, a transverse rod 15 fixedly connected to the side wall of the movable frame 14, and a transverse moving block 16 slidably connected to the outer wall of the transverse rod 15, and further comprising:

[0049] Positioning mechanism 1 is fixedly connected to the bottom of transverse block 16 and is used to apply pressure to the plate.

[0050] Limiting mechanism 2 is fixedly connected to the outer wall of positioning mechanism 1, so that positioning mechanism 1 can fit tightly against the outer wall of the plate.

[0051] The pushing mechanism 3 is fixedly connected to the inner wall of the positioning mechanism 1 and cooperates with the limiting mechanism 2 to realize the rapid reset of the part;

[0052] The movable frame 14 and the transverse block 16 are equipped with motors, which enable the movable frame 14 to slide up and down along the outer wall of the support 13, and the transverse block 16 to slide along the outer wall of the transverse bar 15. Before use, the composite board is placed on the workbench.

[0053] Positioning mechanism 1 includes:

[0054] The movable component 11 is fixedly connected to the bottom of the transverse block 16;

[0055] The snap-fit ​​assembly 12 is slidably connected to the outer wall of the movable assembly 11;

[0056] When the moving component 11 and the latching component 12 overlap, the latching component 12 will restrict the sliding of the moving component 11.

[0057] Limiting mechanism 2 includes:

[0058] Release component 21, which is slidably connected to the top of movable component 11;

[0059] Reset component 22 is rotatably connected to the inner wall of movable component 11;

[0060] As the moving component 11 slides, it drives the release component 21 to move via the pushing mechanism 3, thereby releasing the release component 21 from the restriction of the latching component 12.

[0061] The driving body 3 includes:

[0062] Limiting component 31 is fixedly connected to the bottom of moving component 11;

[0063] The return assembly 32 includes a push rod fixedly connected to the top of the contact post 113;

[0064] When the moving component 11 slides up and down, the moving component 11 will contact the limiting component 31, and at the same time the resetting component 22 will deform and contact the outer wall of the returning component 32.

[0065] Example 2, please refer to Figure 4 - Figure 8 The present invention is a strength performance testing device for composite panels. Based on Example 1, the moving component 11 includes a hydraulic push rod 111 fixedly connected to the bottom of the transverse block 16. The output end of the hydraulic push rod 111 is fixedly connected to a plurality of L-shaped rails 112. Contact columns 113 are slidably connected to the inner walls of the plurality of L-shaped rails 112. Limiting blocks 114 are slidably connected to the side walls of the contact columns 113.

[0066] To address the issue of slight bends on the surface of wooden boards, a positioning mechanism 1, a limiting mechanism 2, and a push rod are installed inside the equipment. Under normal conditions, the contact post 113 is at the bottom of the L-shaped track 112. When the hydraulic push rod 111 pushes the L-shaped track 112 downward, the bottom end of the contact post 113 will contact the outer wall of the board. At this time, multiple contact posts 113 will be tightly attached to the outer wall of the contact post 113, restricting the downward movement of the contact post 113, while forcing the L-shaped track 112 to slide downward along the outer wall of the contact post 113.

[0067] The buckle assembly 12 includes a sliding plate 121 that is slidably connected to the inner wall of the L-shaped track 112, a tension spring 122 that is fixedly connected to the side wall of the sliding plate 121, a plurality of protrusions 123 that are fixedly connected to the side wall of the sliding plate 121, and a plurality of arc-shaped plates 124 that are fixedly connected to the bottom of the transverse block 16.

[0068] When all the contact posts 113 move up to a certain extent, the tension spring 122 pulls the sliding plate 121 along the inner wall of the L-shaped track 112 toward the contact post 113. At this time, the sliding plate 121 will drive the protrusion 123 to hit the outer wall of the limiting block 114, causing the limiting block 114 to change accordingly. At this time, several limiting blocks 114 will completely fit the shape of the protrusion 123 and restrict the contact post 113 from sliding up and down.

[0069] The release assembly 21 includes a round rod 211 fixedly connected to the top of the L-shaped track 112, a slidable plate 212 connected to the outer wall of the round rod 211, an arc surface 213 opened at the bottom of the slidable plate 212, and a spring 214 fixedly connected to the outer wall of the slidable plate 212.

[0070] The contact post 113 drives the push rod to move upward synchronously and contact the bottom outer wall of the zigzag plate 212, forcing the zigzag plate 212 to move upward and releasing the restriction of the plane of the zigzag plate 212 on the sliding plate 121. Since the multiple sliding plates 121 are a whole, when the last zigzag plate 212 releases its restriction on the sliding plate 121, the tension spring 122 will release its potential energy and drive the sliding plate 121 to move towards the contact post 113. The sliding plate 121 will drive the protrusion 123 to hit the outer wall of the limiting block 114, causing the limiting block 114 to change accordingly. At this time, several limiting blocks 114 will completely fit the shape of the protrusion 123, restricting the vertical sliding of the contact post 113. Through the application of the above components, the multiple contact posts 113 are initially attached to the outer wall of the plate, and later, after the protrusion 123 restricts the movement of the contact posts 113, the pressure generated by the hydraulic push rod 111 will be transmitted to the contact post 113 through the L-shaped rail 112, ensuring the stability of the pressure.

[0071] The reset assembly 22 includes a cylinder 221 rotatably connected to the inner wall of the contact post 113, a long rod 222 rotatably connected to the outer wall of the cylinder 221, and a short rod 223 fixedly connected to the side wall of the long rod 222.

[0072] When a single zigzag plate 212 is pushed upward, the entire assembly of multiple sliding plates 121 will not move. Only after the last zigzag plate 212 is tilted upward will the entire assembly of multiple sliding plates 121 carry multiple protrusions 123 to contact the outer wall of the limiting block 114, and the limiting block 114 will completely fit the outer wall of the protrusions 123. Through the application of the above components, when there are slight differences in the height of multiple contact posts 113, the protrusions 123 can ensure that the contact posts 113 are locked, reducing the slight sliding caused by the pressure on the contact posts 113, and ensuring that the pressure of multiple contact posts 113 on the outer wall of the plate is equal.

[0073] The limiting component 31 includes a support plate 311 fixedly connected to the bottom of the L-shaped track 112, and a square column 312 fixedly connected to the top of the support plate 311.

[0074] In this process, after the contact column 113 bends the plate, the hydraulic push rod 111 will retract, at which point the protrusion 123 is in a clamping state. As the hydraulic push rod 111 moves upward, the arc plate 124 will be inserted into the inner wall of the through hole at the top of the L-shaped track 112. At this time, the arc surface of the arc plate 124 will contact the side wall of the sliding plate 121, forcing the sliding plate 121 to slide outward along the inner wall of the L-shaped track 112, while simultaneously pulling the tension spring 122, causing the tension spring 122 to extend and accumulate potential energy. During this process, the other side of the sliding plate 121 will contact the arc surface 213 and push the bent plate 212 upward. Finally, the sliding plate 121 is again restricted by the plane of the arc surface 213, presenting as... Figure 6Through the application of the above components, the device can directly enter the standby state after completing the test.

[0075] The repositioning component 32 also includes a groove 322 opened on the side wall of the contact post 113, and a square slide plate 323 is slidably connected to the inner wall of the groove 322.

[0076] When the sliding plate 121 moves away from the limiting block 114, the limiting block 114 and the contact post 113 will lose their restraint, and the contact post 113 will slide downward along the inner wall of the L-shaped track 112. Figure 8 The state changes to Figure 7 In this state, the square column 312 will push the long rod 222 to rotate counterclockwise, and the end of the short rod 223 will contact the outer wall of the square slide plate 323, forcing the square slide plate 323 to slide along the inner wall of the slide groove 322 towards the limiting block 114. The side wall of the square slide plate 323 will force the limiting block 114 to change from a disordered state to a flush state. Through the application of the above components, it is ensured that when the device enters the standby state, the limiting block 114 is reset as a whole. When the contact column 113 is attached to the outer wall of the plate, the flush limiting block 114 can effectively provide support for the protruding block 123.

[0077] One specific application of this embodiment is as follows: Before use, the equipment is first installed in the required position, then the composite board is placed on the workbench, the position of the moving frame 14 and the transverse block 16 is adjusted, and finally the hydraulic push rod 111 forces the contact column 113 to contact the outer wall of the board. Then the sensor at the bottom of the contact column 113 will collect pressure data to complete the strength test of the foundation.

[0078] To address the issue of minor bends on the surface of wooden boards, a positioning mechanism 1, a limiting mechanism 2, and a push rod are installed inside the equipment. Under normal conditions, the contact post 113 is at the bottom of the L-shaped track 112. When the hydraulic push rod 111 pushes the L-shaped track 112 downwards, the bottom end of the contact post 113 contacts the outer wall of the board. At this time, multiple contact posts 113 are pressed tightly against the outer wall of the contact post 113, restricting its downward movement and simultaneously forcing the L-shaped track 112 to move along the contact post 113. When the outer wall of 13 slides downward, it can be considered that the contact post 113 moves upward. The contact post 113 drives the push rod to move upward synchronously and contact the bottom outer wall of the zigzag plate 212, forcing the zigzag plate 212 to move upward and release the restriction of the plane of the zigzag plate 212 on the sliding plate 121. Since the multiple sliding plates 121 are a whole, when the last zigzag plate 212 releases the restriction on the sliding plate 121, the tension spring 122 will release potential energy and drive the sliding plate 121 to move in the direction of the contact post 113. The sliding plate 121 will cause the protrusion 123 to strike the outer wall of the limiting block 114, causing the limiting block 114 to change accordingly. At this time, several limiting blocks 114 will completely fit the shape of the protrusion 123, restricting the contact post 113 from sliding up and down. Through the application of the above components, multiple contact posts 113 are initially attached to the outer wall of the plate. After the protrusion 123 restricts the movement of the contact post 113, the pressure generated by the hydraulic push rod 111 will be transmitted to the contact post 113 through the L-shaped rail 112 to ensure the stability of the pressure.

[0079] Utilizing the feature that the protruding block 123 contacts the outer wall of the multiple limiting blocks 114, the multiple sliding plates 121 are combined into a whole. When a single curved plate 212 is pushed upward, the whole composed of multiple sliding plates 121 will not move. Only after the last curved plate 212 is tilted upward will the whole composed of multiple sliding plates 121 carry the multiple protruding blocks 123 to contact the outer wall of the limiting blocks 114, and the limiting blocks 114 completely fit the outer wall of the protruding blocks 123. Through the application of the above components, when there are slight differences in the height of the multiple contact posts 113, the protruding blocks 123 can ensure that the contact posts 113 are locked, reducing the slight sliding caused by the pressure on the contact posts 113, and ensuring that the pressure of the multiple contact posts 113 on the outer wall of the plate is equal.

[0080] After the contact column 113 bends the plate, the hydraulic push rod 111 will retract, at which point the protrusion 123 is in a clamping state. As the hydraulic push rod 111 moves upward, the arc plate 124 will insert into the inner wall of the through hole at the top of the L-shaped track 112. At this time, the arc surface of the arc plate 124 will contact the side wall of the sliding plate 121, forcing the sliding plate 121 to slide outward along the inner wall of the L-shaped track 112, while pulling the tension spring 122, causing the tension spring 122 to extend and accumulate potential energy. During this process, the other side of the sliding plate 121 will contact the arc surface 213 and push the bent plate 212 upward. Finally, the sliding plate 121 is again restricted by the plane of the arc surface 213, presenting as... Figure 6 Through the application of the above components, the device can directly enter the standby state after completing the test;

[0081] Utilizing the characteristic of the arc-shaped plate 124 to push the sliding plate 121 to reset, a pushing mechanism 3 is provided inside the equipment. When the sliding plate 121 moves away from the limiting block 114, the limiting block 114 and the contact post 113 will lose their restraint, and the contact post 113 will slide downward along the inner wall of the L-shaped track 112. Figure 8 The state changes to Figure 7 In this state, the square column 312 will push the long rod 222 to rotate counterclockwise, and the end of the short rod 223 will contact the outer wall of the square slide plate 323, forcing the square slide plate 323 to slide along the inner wall of the slide groove 322 towards the limiting block 114. The side wall of the square slide plate 323 will force the limiting block 114 to change from a disordered state to a flush state. Through the application of the above components, it is ensured that when the device enters the standby state, the limiting block 114 is reset as a whole. When the contact column 113 is attached to the outer wall of the plate, the flush limiting block 114 can effectively provide support for the protruding block 123.

[0082] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A strength performance testing device for composite panels, comprising a support (13), wherein a movable frame (14) is slidably connected to the outer wall of the support (13), a transverse rod (15) is fixedly connected to the side wall of the movable frame (14), and a transverse block (16) is slidably connected to the outer wall of the transverse rod (15), characterized in that, Also includes: Positioning mechanism (1), which is fixedly connected to the bottom of the transverse block (16) and is used to apply pressure to the plate; Limiting mechanism (2), the limiting mechanism (2) is fixedly connected to the outer wall of the positioning mechanism (1), so that the positioning mechanism (1) can fit tightly against the outer wall of the plate; The pushing mechanism (3) is fixedly connected to the inner wall of the positioning mechanism (1) and cooperates with the limiting mechanism (2) to realize the rapid reset of the parts; Among them, the moving frame (14) and the transverse block (16) are equipped with motors, so that the moving frame (14) can slide up and down along the outer wall of the support (13), and the transverse block (16) can slide along the outer wall of the transverse bar (15). Before use, the composite board is placed on the workbench. The positioning mechanism (1) includes: A moving component (11) is fixedly connected to the bottom of the transverse block (16); The snap-fit ​​assembly (12) is slidably connected to the outer wall of the movable assembly (11); The limiting mechanism (2) includes: Release component (21), which is slidably connected to the top of the moving component (11); A reset assembly (22) is rotatably connected to the inner wall of the movable assembly (11); The moving component (11) includes a hydraulic push rod (111) fixedly connected to the bottom of the transverse block (16). The output end of the hydraulic push rod (111) is fixedly connected to a plurality of L-shaped rails (112). Contact posts (113) are slidably connected to the inner walls of the plurality of L-shaped rails (112). Limit blocks (114) are slidably connected to the side walls of the contact posts (113). The buckle assembly (12) includes a sliding plate (121) that is slidably connected to the inner wall of the L-shaped track (112), and a plurality of protrusions (123) are fixedly connected to the side wall of the sliding plate (121). The release assembly (21) includes a round rod (211) fixedly connected to the top of the L-shaped track (112), and a zigzag plate (212) is slidably connected to the outer wall of the round rod (211).

2. The strength performance testing device for composite panels according to claim 1, characterized in that: The propulsion mechanism (3) includes: A limiting component (31) is fixedly connected to the bottom of the moving component (11); The repositioning assembly (32) includes a push rod fixedly connected to the top of the contact post (113).

3. The strength performance testing device for composite panels according to claim 2, characterized in that: Under normal conditions, the contact post (113) will be at the bottom of the L-shaped track (112). When the hydraulic push rod (111) pushes the L-shaped track (112) to slide downward, the bottom end of the contact post (113) will contact the outer wall of the plate, restricting the downward movement of the contact post (113) and forcing the L-shaped track (112) to slide downward along the outer wall of the contact post (113).

4. The strength performance testing device for composite panels according to claim 3, characterized in that: A tension spring (122) is fixedly connected to the side wall of the sliding plate (121), and several arc-shaped plates (124) are fixedly connected to the bottom of the transverse block (16). When all the contact posts (113) move up to a certain extent, the tension spring (122) pulls the sliding plate (121) along the inner wall of the L-shaped track (112) toward the contact post (113). At this time, the sliding plate (121) will drive the protrusion (123) to hit the outer wall of the limiting block (114), causing the limiting block (114) to change accordingly. At this time, several limiting blocks (114) will completely fit the shape of the protrusion (123) and restrict the contact post (113) from sliding up and down.

5. The strength performance testing device for composite panels according to claim 4, characterized in that: The bottom of the zigzag plate (212) is provided with an arc surface (213), and a spring (214) is fixedly connected to the outer wall of the zigzag plate (212). When the contact post (113) moves upward, the contact post (113) will drive the push rod to move upward synchronously and contact the bottom outer wall of the flexural plate (212), forcing the flexural plate (212) to move upward and releasing the restriction of the plane of the flexural plate (212) on the sliding plate (121). At this time, the tension spring (122) will contract and drive the sliding plate (121) to move in the direction of the contact post (113).

6. The strength performance testing device for composite panels according to claim 5, characterized in that: The reset assembly (22) includes a cylinder (221) rotatably connected to the inner wall of the contact post (113), a long rod (222) rotatably connected to the outer wall of the cylinder (221), and a short rod (223) fixedly connected to the side wall of the long rod (222). When the bottom of the long rod (222) is subjected to an upward pressure, the long rod (222) will rotate counterclockwise around the cylinder (221) and force the short rod (223) to rotate in the same direction. When the contact post (113) moves upward, since the length of the long rod (222) is greater than that of the short rod (223), the long rod (222) will rotate downward around the cylinder (221) as the center point.

7. The strength performance testing device for composite panels according to claim 6, characterized in that: The limiting component (31) includes a support plate (311) fixedly connected to the bottom of the L-shaped track (112), and a square column (312) is fixedly connected to the top of the support plate (311). When the contact post (113) falls to the bottom, the square post (312) will push the long rod (222) to rotate counterclockwise. When the contact post (113) moves upward, the long rod (222) loses the restriction of the square post (312) and rotates clockwise.

8. The strength performance testing device for composite panels according to claim 7, characterized in that: The repositioning component (32) also includes a groove (322) opened on the side wall of the contact post (113), and a square sliding plate (323) is slidably connected to the inner wall of the groove (322). When the long rod (222) rotates counterclockwise, the end of the short rod (223) will contact the outer wall of the square slide plate (323) and force the square slide plate (323) to slide along the inner wall of the slide groove (322). When the long rod (222) rotates clockwise, the short rod (223) will move away from the outer wall of the square slide plate (323). When the limiting block (114) is pressed and slides, the limiting block (114) will force the square slide plate (323) to slide along the inner wall of the slide groove (322).

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