CN118624411A - A compression testing device for ecological board - Google Patents

Abstract

The invention relates to the technical field of plate compression resistance detection, in particular to a compression resistance detection device for an ecological plate, which comprises a base, wherein a console is arranged at the top of the base, a support frame is fixedly connected to the top of the base, a pair of hydraulic telescopic cylinders are fixedly connected to the top of the support frame, an adjusting frame is arranged at the inner side of the support frame, the output end of each hydraulic telescopic cylinder penetrates through the top of the support frame and is fixedly connected with the top of the adjusting frame, a fixed frame is fixedly connected to the top of the base and is positioned below the support frame, a pair of sliding blocks are slidingly connected to the inner side of the adjusting frame, a pair of rotating grooves are formed in the bottoms of the sliding blocks, an upper test head with a pressure sensor is arranged below the adjusting frame, and a hinge seat is fixedly connected to the top of the upper test head.

Description

A compression testing device for ecological board

Technical Field

The invention relates to the technical field of plate compression resistance detection, and in particular to a compression resistance detection device for ecological plate.

Background Art

Ecological board is a kind of man-made board, which is made of solid wood particles or wood fibers, added with environmentally friendly glue, and processed by high temperature and high pressure. Its characteristics include good environmental protection, clear and natural texture, and good decorative effect. It is usually used in furniture, cabinets, wardrobes, bathroom cabinets and other fields. In order to ensure the quality of the board, a batch of boards will usually be tested first, and then the raw materials of the boards will be adjusted according to the test data. When the board inspection meets the standards, the board can be mass-produced.

The prior art discloses a plate mechanical specimen testing device and method with publication number CN116718460A. The device pushes a mounting plate downward through a hydraulic telescopic rod. The bottom end of the mounting plate contacts the top end of the plate to be tested, causing the pressure spring to contract. The elastic force generated by the deformation of the pressure spring causes the pressure plate to apply pressure to the plate, causing the push rod to push the sliding contact of the sliding resistor to move, thereby changing the resistance in the circuit connected to the sliding resistor. The current detection device detects the current in the circuit, and according to the change in the current, converts it into the pressure applied by the mounting plate on the plate, and sends it to the display terminal, which is beneficial to ensure the accuracy of the test results and improve work efficiency.

However, there are still some defects in actual use, because the compression detection device can only squeeze the center of the board to detect its compression performance, but ecological boards are mainly used in furniture manufacturing, and ecological boards not only have to bear downward pressure during use, such as wardrobes and cabinets, but the boards on both sides also need to bear vertical downward pressure. Therefore, the compression detection device can only perform unidirectional detection on the ecological boards, and cannot be changed according to actual test needs. It is also necessary to purchase additional testing equipment, which greatly increases the test cost and cannot meet the test needs.

Therefore, a compression resistance detection device for ecological board is proposed to solve the above-mentioned problems.

Summary of the invention

The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a compression resistance detection device for ecological board materials.

To achieve the above objectives, the technical solution adopted by the present invention is: a compression resistance detection device for ecological board materials, comprising a base, a control console is provided on the top of the base, a support frame is fixedly connected to the top of the base, a pair of hydraulic telescopic cylinders are fixedly connected to the top of the support frame, an adjustment frame is provided on the inner side of the support frame, the output end of the hydraulic telescopic cylinder passes through the top of the support frame and is fixedly connected to the top of the adjustment frame, a fixed frame is fixedly connected to the top of the base and located below the support frame, a pair of sliding blocks are slidably connected to the inner side of the adjustment frame, a pair of rotating grooves are provided at the bottom of the sliding blocks, an upper test head with a pressure sensor is provided below the adjustment frame, a hinge seat is fixedly connected to the top of the upper test head, two push rods are hingedly connected to the inner side of the hinge seat, and the tops of the two push rods are respectively hingedly connected to the rotating grooves on the two sliding blocks;

The inner side of the other rotating groove is hingedly connected to a pressing plate, and the side wall of the pressing plate and the side away from the sliding block are fixedly connected to a right-angle block, and a pair of hinge plates are fixedly connected on both sides of the adjusting frame, and the middle parts of the front and rear sides of the pressing plate are hingedly connected to a push rod, and the other side of the push rod is hingedly connected to the side wall of the hinge plate, and a driving mechanism for driving the two sliding blocks to move in different directions is provided on the inner side of the adjusting frame, and moving blocks are slidably connected to the two ends of the inner side of the fixed frame, and the top of the moving block is provided with an inclined groove that fits the inclined surface of the right-angle block, and a placement seat is provided on the side close to the moving block, and an inward placement groove is provided on the front side of the placement seat, and a lower test head with a pressure sensor is provided on the inner side of the placement groove.

In the above technical solution, further, a pair of sliding rods are fixedly connected to the inner side of the fixed frame and are arranged through the inner side of the moving block, and upper springs are fixedly connected between the moving blocks and on the outer sides of the sliding rods.

In the above technical solution, further, the driving mechanism includes a driving motor, a bidirectional screw is rotatably connected to the inner side of the adjusting frame, and the bidirectional screw passes through the inner side wall of the threaded sliding block, the driving motor is fixedly connected to the side wall of the adjusting frame, and the output end of the driving motor passes through the adjusting frame and is fixedly connected to the side wall of the bidirectional screw.

In the above technical solution, further, a pair of guide rods are fixedly connected to the inner side of the adjustment frame and penetrate the inner wall of the sliding block, and the sliding block is slidably connected to the outer wall of the guide rods.

In the above technical solution, further, a through groove is provided at one end of the side wall of the support frame, and a straight groove is provided at the other end of the side wall of the support frame and at a position corresponding to the push rod.

In the above technical solution, further, a movable groove is opened on the top of the adjustment frame, a touch block is fixedly connected to the top of one of the sliding blocks and located at the movable groove, and a limit switch is fixedly connected to the top of the adjustment frame and located on both sides of the movable groove, and the limit switch is electrically connected to the pressure sensor on the upper test head and the pressure sensor on the lower test head through the controller.

In the above technical scheme, further, the bottom of the moving block close to one side is fixedly connected to the bottom frame, the bottom of the placing seat is slidably connected to the inner side of the bottom frame, the inner side of the bottom frame is rotatably connected to a wire-taking roller, the front side of the wire-taking roller passes through the front side of the fixed frame and is fixedly connected to a turntable, a through groove is opened on the front side of the fixed frame and at a position corresponding to the wire-taking roller, a pull rope is wrapped around the outer wall of the wire-taking roller, one end of the pull rope is fixedly connected to the outer wall of the wire-taking roller, and the other end of the pull rope is fixedly connected to the side wall of the placing seat, and a pair of lower springs are fixedly connected between the inner side of the bottom frame and the side wall of the placing seat.

In the above technical solution, further, the outer wall of the take-up roller is fixedly connected with a gear ring, the front side of the bottom frame and next to the take-up roller is fixedly connected with a limit frame, the inner side of the limit frame is slidably connected with a gear plate meshing with the gear ring, and a reset spring is fixedly connected between the inner side of the limit frame and the side wall of the gear plate.

In the above technical solution, further, a scale groove is provided at the top of the fixing frame and at a position corresponding to the placement seat.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention can not only perform compression test on the middle of the ecological board, but also can quickly adjust to test the lateral compression of the ecological board, so that it can be flexibly adjusted according to the detection requirements, ensuring the multi-faceted compression quality of the ecological board and making the compression test results more comprehensive.

2. The present invention can also adjust the compression test positions in different directions according to the ecological boards of different sizes, so that it can be applicable to the detection of ecological boards of different sizes and improve the universal performance of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the front three-dimensional structure of a compression resistance detection device of the present invention;

FIG2 is a schematic diagram of a full-section three-dimensional structure of the front side of the base of the present invention;

FIG3 is a schematic diagram of a partial enlarged structure of point A in FIG1 of the present invention;

FIG4 is a schematic diagram of the overall appearance structure of the adjustment frame of the present invention;

FIG5 is a schematic diagram of the overall appearance of the sliding block and the driving mechanism of the present invention;

FIG6 is a schematic diagram of the overall appearance structure of the moving block and the placement seat of the present invention;

FIG. 7 is a schematic diagram of the overall appearance structure of the take-up roller and the limit frame of the present invention.

In the figure: 1, base; 2, control console; 3, support frame; 4, hydraulic telescopic cylinder; 5, adjustment frame; 6, fixed frame; 7, sliding block; 8, rotating slot; 9, upper test head; 10, hinge seat; 11, push rod; 12, pressing plate; 13, right-angle block; 14, hinge plate; 15, push rod; 16, moving block; 17, inclined slot; 18, placement seat; 19, placement slot; 20, lower test head; 21, sliding rod; 22, upper spring; 23, driving motor; 24, bidirectional screw rod; 25, guide rod; 26, through slot; 27, straight slot; 28, movable slot; 29, touch block; 30, travel switch; 31, bottom frame; 32, take-up roller; 33, turntable; 34, through slot; 35, pull rope; 36, lower spring; 37, gear ring; 38, limit frame; 39, gear plate; 40, reset spring; 41, scale slot.

DETAILED DESCRIPTION

In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

A compression resistance detection device for an ecological board material as shown in Figures 1-7 includes a base 1, a control console 2 is provided on the top of the base 1, a support frame 3 is fixedly connected to the top of the base 1, a pair of hydraulic telescopic cylinders 4 are fixedly connected to the top of the support frame 3, an adjustment frame 5 is provided on the inner side of the support frame 3, the output end of the hydraulic telescopic cylinder 4 passes through the top of the support frame 3 and is fixedly connected to the top of the adjustment frame 5, a fixed frame 6 is fixedly connected to the top of the base 1 and located below the support frame 3, a pair of sliding blocks 7 are slidably connected to the inner side of the adjustment frame 5, a pair of rotating grooves 8 are provided at the bottom of the sliding blocks 7, an upper test head 9 with a pressure sensor is provided below the adjustment frame 5, a hinge seat 10 is fixedly connected to the top of the upper test head 9, two push rods 11 are hingedly connected to the inner side of the hinge seat 10, and the tops of the two push rods 11 are respectively hingedly connected to the rotating grooves 8 on the two sliding blocks 7 in an interlaced manner;

When testing the compressive resistance of the surface of the ecological board, first insert the ecological board to be tested into the placement slot 19, then control the hydraulic telescopic cylinder 4 to start and drive the adjustment frame 5 to slide downward, and then drive the upper test head 9 to slide downward to squeeze the middle of the ecological board. The value transmitted by the pressure sensor on the upper test head 9 is used to realize the test of the compressive resistance of the surface of the ecological board. After the test is completed, repeat the above operation in reverse to remove the board.

Another rotating groove 8 is hingedly connected to a pressing plate 12 on the inner side, and a right-angle block 13 is fixedly connected to the side wall of the pressing plate 12 and the side away from the sliding block 7. A pair of hinge plates 14 are fixedly connected to both sides of the adjustment frame 5. The middle part of the front and rear sides of the pressing plate 12 is hingedly connected to a push rod 15. The push rod 15 is set to an L shape, and when the upper test head 9 is adjusted to the detection position, the pressing plate 12 and the push rod 15 are in an inclined state to avoid being in a horizontal state, which will cause a dead point. The push rod 15 The other side is hinged to the side wall of the hinge plate 14, a driving mechanism for driving the two sliding blocks 7 to move in different directions is provided on the inner side of the adjustment frame 5, and moving blocks 16 are slidably connected at both ends of the inner side of the fixed frame 6, and an inclined groove 17 is provided on the top of the moving block 16 to fit the inclined surface of the right-angle block 13, and a placement seat 18 is provided on the side close to the moving block 16, and a recessed placement groove 19 is provided on the front side of the placement seat 18, and a lower test head 20 with a pressure sensor is provided inside the placement groove 19;

The driving mechanism includes a driving motor 23, a bidirectional screw rod 24 is rotatably connected to the inner side of the adjusting frame 5, and the bidirectional screw rod 24 is arranged through the inner side wall of the threaded connection sliding block 7, the driving motor 23 is fixedly connected to the side wall of the adjusting frame 5, and the output end of the driving motor 23 passes through the adjusting frame 5 and is fixedly connected to the side wall of the bidirectional screw rod 24;

When the transverse compressive strength of the ecological board is tested according to the testing requirements, the driving motor 23 is controlled to start and drive the bidirectional screw rod 24 to rotate, thereby driving the two threaded sliding blocks 7 to slide to both sides, thereby pulling the two hinged push rods 11 to move to both sides, and then driving the upper test head 9 to move upward. At the same time, through the sliding of the sliding block 7, the pressing plate 12 will be pushed to flip downward around the hinge of the push rod 15, and at the same time, the push rod 15 will be driven to rotate around the hinge with the hinge plate 14 until the pressing plate 12 is adjusted to a vertical state. At the same time, the upper test head 9 moves up to the top under the pull of the two push rods 11;

Then the hydraulic telescopic cylinder 4 can be controlled to start and drive the adjustment frame 5 to move downward. At this time, the upper test head 9 moves to the top and will not contact the surface of the ecological board. Then the right-angle block 13 at the bottom of the pressing plate 12 will be inserted into the fixed frame 6, and fit with the top of the inclined groove 17 on the moving block 16. As the pressing plate 12 gradually moves downward, the moving blocks 16 on both sides will be squeezed toward the middle, and the upper spring 22 will be squeezed at the same time, thereby driving the placement seat 18 to move toward the closer side, and squeezing the ecological board in the placement groove 19 toward the closer side. At the same time, the detection value is transmitted through the lower test head 20, so as to realize the detection of the lateral compressive resistance of the ecological board. After the detection is completed, the above operation can be repeated in reverse to reset.

In order to facilitate the rapid reset of the moving block 16 after the test, a pair of sliding rods 21 are fixedly connected to the inner side of the fixed frame 6 and are arranged through the inner side of the moving block 16. Through the setting of the sliding rods 21, the sliding of the moving block 16 can be guided, and upper springs 22 are fixedly connected between the moving blocks 16 and on the outer sides of the sliding rods 21. Through the setting of the upper springs 22, the pressing plate 12 can be moved down to squeeze the placement seat 18 to move toward the closer side. During the test of the lateral compressive resistance of the ecological board, the upper spring 22 is compressed. Then, when the hydraulic telescopic cylinder 4 drives the adjusting frame 5 to move up to release the squeezing of the moving block 16, the elastic force of the upper spring 22 pushes the moving block 16 and the placement seat 18 to reset quickly.

In order to improve the stability of the device during operation, a pair of guide rods 25 are fixedly connected to the inner side of the adjustment frame 5 and pass through the inner wall of the sliding block 7. The sliding block 7 is slidably connected to the outer wall of the guide rods 25. Through the setting of the guide rods 25, it can play a guiding role in the process of the two sliding blocks 7 moving when the two-way screw rod 24 rotates, avoiding the sliding block 7 from rotating with the two-way screw rod 24, thereby improving the stability of the device during operation.

In order to avoid affecting the normal operation of the device, a through groove 26 is opened at one end of the side wall of the support frame 3. The setting of the through groove 26 can prevent the driving motor 23 from being obstructed when the hydraulic telescopic cylinder 4 drives the adjustment frame 5 to slide up and down, thereby affecting the normal detection of the device. A straight groove 27 is opened at the other end of the side wall of the support frame 3 and at a position corresponding to the push rod 15. The setting of the straight groove 27 can not only avoid obstruction of the movement of the push rod 15 during detection, but also avoid the support frame 3 affecting the flipping of the push rod 15 during adjustment, thereby affecting the normal operation of the device.

In order to improve the automation of the device, a moving groove 28 is provided on the top of the adjustment frame 5, a touch block 29 is fixedly connected to the top of one of the sliding blocks 7 and located at the moving groove 28, and a travel switch 30 is fixedly connected to the top of the adjustment frame 5 and located on both sides of the moving groove 28. The travel switch 30 is electrically connected to the pressure sensor on the upper test head 9 and the pressure sensor on the lower test head 20 through the controller;

By setting the travel switch 30 and the touch block 29, the touch block 29 can be driven to slide during the process of adjusting the detection direction. Then, when the upper test head 9 or the pressing plate 12 is adjusted to the specified position, the touch block 29 will touch the corresponding travel switch 30. The travel switch 30 then transmits a signal to the controller, and the controller controls the pressure sensor on the corresponding upper test head 9 or lower test head 20 to be energized, so that the corresponding detection value can be displayed on the console 2, thereby improving the degree of automation of the device.

The bottom of the movable block 16 is fixedly connected to the bottom frame 31 on one side, and the bottom of the placement seat 18 is slidably connected to the inner side of the bottom frame 31. The inner side of the bottom frame 31 is rotatably connected to the wire take-up roller 32. The front side of the wire take-up roller 32 passes through the front side of the fixed frame 6 and is fixedly connected to a turntable 33. A through groove 34 is provided on the front side of the fixed frame 6 and at a position corresponding to the wire take-up roller 32. The through groove 34 is provided to prevent the movement of the wire take-up roller 32 from being hindered during the movement of the movable block 16 for detection, thereby affecting the normal operation of the device. A pull rope 35 is wrapped around the outer wall of the wire take-up roller 32, and one end of the pull rope 35 is fixedly connected to the outer wall of the wire take-up roller 32, and the other end of the pull rope 35 is fixedly connected to the side wall of the placement seat 18. A pair of lower springs 36 are fixedly connected between the inner side of the bottom frame 31 and the side wall of the placement seat 18.

The outer wall of the take-up roller 32 is fixedly connected with a gear ring 37, the front side of the bottom frame 31 and the side of the take-up roller 32 is fixedly connected with a limit frame 38, the inner side of the limit frame 38 is slidably connected with a gear plate 39 meshing with the gear ring 37, and a return spring 40 is fixedly connected between the inner side of the limit frame 38 and the side wall of the gear plate 39;

When the device needs to detect ecological boards of different sizes, first push the tooth plate 39 to slide inside the limit frame 38, so that the tooth plate 39 slides out of the meshing position with the tooth ring 37, and at the same time compresses the return spring 40, so that the rotation restriction of the take-up roller 32 can be released, and then the turntable 33 is rotated to drive the take-up roller 32 to rotate, and then the pull rope 35 is reeled in, followed by pulling the placement seat 18 to slide inside the bottom frame 31, and at the same time stretching the lower spring 36 to complete the adjustment of the position of the placement seat 18 on one side. After the adjustment is completed, release the tooth plate 39, and then the elastic force of the return spring 40 pushes the tooth plate 39 to slide, so that the tooth plate 39 and the tooth ring 37 mesh with each other, and the rotation position of the take-up roller 32 can be fixed, and then the above operation is repeated to adjust the other placement seat 18 to the same distance as the previous placement seat 18, so that the pressure resistance detection position in different directions can be adjusted, which can be suitable for the detection of ecological boards of different sizes and improve the universal performance of the device.

In order to improve the adjustment accuracy, a scale groove 41 is opened at the top of the fixed frame 6 and at the position corresponding to the placement seat 18. Through the setting of the scale groove 41, the position of the placement seat 18 can be observed on the scale groove 41 while adjusting the position of the placement seat 18, and then the position of the placement seat 18 can be accurately adjusted according to the actual size of the detected ecological board, thereby improving the practical performance of the device.

The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected.

Claims (9)

1. The utility model provides an ecological panel's resistance to compression detection device, includes base (1), base (1) top is equipped with control cabinet (2), its characterized in that: the device comprises a base (1), a support frame (3) fixedly connected to the top of the base (1), a pair of hydraulic telescopic cylinders (4) are fixedly connected to the top of the support frame (3), an adjusting frame (5) is arranged on the inner side of the support frame (3), the output end of each hydraulic telescopic cylinder (4) penetrates through the top of the support frame (3) and is fixedly connected with the top of the adjusting frame (5), a fixed frame (6) is fixedly connected to the top of the base (1) and positioned below the support frame (3), a pair of sliding blocks (7) are slidingly connected to the inner side of the adjusting frame (5), a pair of rotating grooves (8) are formed in the bottoms of the sliding blocks (7), an upper test head (9) with a pressure sensor is arranged below the adjusting frame (5), a hinge seat (10) is fixedly connected to the top of the upper test head (9), two ejector rods (11) are hinged to the inner side of the hinge seat (10), and the tops of the two ejector rods (11) are respectively connected in the rotating grooves (8) on the two sliding blocks (7) in a staggered hinge mode;

The other one the inboard equal hinged joint of pivoted slot (8) presses board (12), the equal fixedly connected with right angle piece (13) in slider (7) one side are kept away from to pressing board (12) lateral wall, the equal fixedly connected with of regulation frame (5) both sides is a pair of hinge plate (14), the equal hinged joint in middle part of both sides around pressing board (12) has push rod (15), the equal hinged joint of push rod (15) opposite side is at hinge plate (14) lateral wall, it is equipped with the actuating mechanism that is used for driving two sliders (7) to the different direction removal to adjust frame (5) inboard, the equal sliding connection in inboard both ends of fixed frame (6) has movable block (16), movable block (16) top all offered chute (17) laminating mutually with right angle piece (13), movable block (16) all are close to one side and are equipped with place seat (18), place seat (19) are offered to the front side of placing, place seat (18) the inboard all is equipped with test head (20) down with pressure sensor.

2. The pressure-resistant detection device for ecological plates according to claim 1, wherein: the inner side of the fixed frame (6) is fixedly connected with a pair of sliding rods (21) and penetrates through the inner side of the moving blocks (16), and upper springs (22) are fixedly connected between the moving blocks (16) and located on the outer sides of the sliding rods (21).

3. The pressure-resistant detection device for ecological plates according to claim 1, wherein: the driving mechanism comprises a driving motor (23), a bidirectional screw rod (24) is rotationally connected to the inner side of the adjusting frame (5), the bidirectional screw rod (24) penetrates through the inner side wall of the threaded connection sliding block (7), the driving motor (23) is fixedly connected to the side wall of the adjusting frame (5), and the output end of the driving motor (23) penetrates through the adjusting frame (5) and is fixedly connected with the side wall of the bidirectional screw rod (24).

4. A compression-resistant detection device for ecological boards according to claim 3, wherein: the inner side of the adjusting frame (5) is fixedly connected with a pair of guide rods (25) and penetrates through the inner side wall of the sliding block (7), and the sliding block (7) is slidably connected to the outer wall of the guide rods (25).

5. The pressure-resistant detection device for ecological plates according to claim 1, wherein: a through groove (26) is formed in one end of the side wall of the support frame (3), and straight grooves (27) are formed in the other end of the side wall of the support frame (3) and in positions corresponding to the push rods (15).

6. The pressure-resistant detection device for ecological plates according to claim 1, wherein: the utility model discloses a test device, including adjusting frame (5), slider (7), pressure sensor, lower test head (20), travel switch (30), pressure sensor, lower test head (20) and pressure sensor, travel switch (28) have been seted up at adjusting frame (5) top, one of them slider (7) top just is located travel groove (28) department fixedly connected with touching piece (29), adjusting frame (5) top just is located travel groove (28) both sides and all fixedly connected with travel switch (30), travel switch (30) pass through the controller and go up pressure sensor on test head (9) and pressure sensor electric connection on test head (20).

7. The pressure-resistant detection device for ecological plates according to claim 1, wherein: the movable block (16) is close to the equal fixedly connected with underframe (31) in one side bottom mutually, place equal sliding connection in underframe (31) inboard in seat (18) bottom, underframe (31) inboard rotation is connected with receipts line roller (32), receive line roller (32) front side and pass fixed frame (6) front side fixedly connected with carousel (33), fixed frame (6) front side and offered through groove (34) with receipts line roller (32) corresponding position, receipts line roller (32) outer wall winding has stay cord (35), stay cord (35) one end fixed connection is at receipts line roller (32) outer wall, just stay cord (35) other end fixed connection is placing seat (18) lateral wall, fixedly connected with a pair of lower spring (36) between underframe (31) inboard and the placing seat (18) lateral wall.

8. The pressure-resistant detection device for ecological boards according to claim 7, wherein: the wire winding roller (32) outer wall fixedly connected with ring gear (37), the front side of underframe (31) just is located the other fixedly connected with spacing frame (38) of wire winding roller (32), spacing frame (38) inboard sliding connection has pinion rack (39) with ring gear (37) engaged with, fixedly connected with reset spring (40) between spacing frame (38) inboard and pinion rack (39) lateral wall.

9. The pressure-resistant detection device for ecological boards according to claim 7, wherein: the top of the fixed frame (6) and the position corresponding to the placement seat (18) are provided with scale grooves (41).