Bamboo bending strength detection equipment

Abstract

The invention discloses bamboo bending strength detection equipment, and relates to the technical field of strength detection. Comprising a workbench, and a downward pressing detection mechanism used for detecting the bending strength of bamboo wood is installed in the middle of the outer wall of the top of the workbench. According to the bamboo bending strength detection device, the downward pressing detection mechanism and the buffering mechanism are arranged, so that two bending strength detection modes of buffering and non-buffering can be achieved when the bending strength of bamboo is detected, selection is more comprehensive when the bending strength of the bamboo is detected, and a rotating mechanism is matched with a limiting mechanism, so that the bending strength of the bamboo is detected more accurately. The detection surface of the bamboo can be adjusted according to actual detection and use requirements, the humidity and temperature of the bamboo can be changed through the arranged adjusting mechanism, then the physical properties of the bamboo can be changed, the bending strength of the bamboo in different environments can be detected conveniently, the detection result is more comprehensive, researchers can improve the bamboo conveniently, and the detection efficiency is improved. Therefore, the use experience and loyalty of customers who purchase bamboo wood are improved.

Description

Technical Field

[0001] The invention relates to the technical field of strength detection, in particular to a bamboo material bending strength detection device. Background Art

[0002] Bamboo is an important natural building material. Due to its excellent physical and mechanical properties, it is widely used in construction, furniture, flooring, decoration and daily necessities. During the production and processing of bamboo, it is often necessary to test the bending strength of bamboo. Through bending strength testing, potential defects of the material can be discovered early to avoid accidents such as breakage or collapse in actual use.

[0003] Patent publication number CN118130287A is a bending test device for steel bar bending strength, including a lap joint; and a clamping part movably arranged in the lap joint, the clamping part including two clamping parts symmetrically arranged in the vertical direction, the two clamping parts are elastically connected, a resistance rod is fixedly installed on the clamping part, and the resistance rod is slidably matched with a limit groove provided on the inner wall of the lap joint; it also includes a driving part, which moves back and forth along the axis direction of the steel bar; it also includes a bending unit, which is used to bend the steel bar, including a base fixedly connected to the lap joint, a limit axis is provided on the base, and a moving roller movably connected to the base, which is used to apply a fixed external force on the steel bar to bend it. Through the provided clamping part and the provided driving part, the steel bar is rotated while being automatically conveyed, and the provided bending unit can obtain the bending strength data of the steel bar from different directions to accurately judge the bending performance of the steel bar.

[0004] The bending strength of bamboo is closely related to the scene in which it is used. In coastal areas with high humidity, bamboo is widely used in construction and interior decoration. However, due to the particularity of the environment, the mechanical properties of bamboo may change due to long-term exposure to humid air. Therefore, in order to ensure that bamboo can be used normally in such a special environment, it is necessary to perform bending strength tests on bamboo under different humidity and temperature environments to ensure the safety and reliability of bamboo in practical applications. The strength bending testing equipment based on the above and similar principles does not have the function of changing the environment of the material when performing bending strength testing. If the material is not subjected to strength testing for the use environment, it may cause deviations in the performance of the material in the actual use environment, thereby reducing the customer's use experience and loyalty. Therefore, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a bamboo bending strength testing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bamboo bending strength testing device, comprising a workbench, a downward pressure detection mechanism for testing the bending strength of the bamboo is installed in the middle of the top outer wall of the workbench, a judgment mechanism for judging whether the bamboo is bent is installed at the bottom of the downward pressure detection mechanism on the top outer wall of the workbench, a buffer mechanism for buffering the downward pressure of the downward pressure detection mechanism is installed on the downward pressure detection mechanism, a screw slide assembly driven by a driving motor is installed on the bottom outer wall of the workbench, the screw in the screw slide assembly is a bidirectional threaded rod, the slide on the screw slide assembly is slidably sleeved on the outer walls at both ends of the bidirectional threaded rod, a limiting mechanism for fixing and limiting the bamboo is installed on the slide of the screw slide assembly, a rotating mechanism for adjusting the rotational position of the bamboo is installed on the limiting mechanism, and an adjustment mechanism for changing the properties of the bamboo is installed at both ends of the downward pressure detection mechanism on the top outer wall of the workbench, and the adjustment mechanism includes a bottom box installed on the workbench , connecting pipes are installed at the bottom of the outer walls of both sides of the bottom box, and liquid pumps are installed on the outer walls of the connecting pipes. Telescopic pipes are installed on the top outer walls of the connecting pipes, and a top box is installed at one end of the discharge pipe port of the telescopic pipe. The top outer wall of the bottom box and the bottom outer wall of the top box are both arc surfaces, and a plurality of nozzles are installed on the bottom outer wall of the top box. A plurality of circular grooves are opened on the top outer wall of the bottom box. Fixed plates are installed on the outer walls of both sides of the bottom box and the top box, and the fixed plates on the bottom box are installed with piston rods fixedly connected to the fixed plates on the top box A second electric push rod is provided, transfer boxes are installed on the outer walls at both ends of the top box, filter plates and mounting plates are respectively installed on the top outer wall and the bottom outer wall of the transfer box, a number of drying tubes facing the top of the bottom box are embedded and installed on the mounting plates, exhaust fans are installed in the drying tubes, and electric heating wires are installed in the transfer box. The position of the bamboo is limited by a limiting mechanism in cooperation with a screw slide assembly, the properties of the bamboo are adjusted by an adjusting mechanism, and the bending strength of the bamboo is tested by a downward pressure detection mechanism in cooperation with a judgment mechanism.

[0007] Furthermore, the limiting mechanism includes a moving seat installed on the slide in the screw slide assembly, connecting plates are installed on the outer walls of both sides of the moving seat, a top plate is installed on the top between the connecting plates, a whipping air pump is installed on the top plate, a circular ring is rotatably connected between the inner walls of both sides of the moving seat through a bearing, a rubber sleeve is embedded and installed on the inner wall of the circular ring, a vertical pipe communicating with the rubber sleeve is embedded and installed on the top of the outer wall of the circular ring, a valve is installed on the outer wall of the vertical pipe, a connecting air pipe connected to the output end of the whipping air pump is installed at the bottom of the whipping air pump, a first electric push rod with one end of a piston rod fixedly connected to the connecting air pipe is installed on the bottom outer wall of the top plate, the pipe mouth of the connecting air pipe is inserted in the vertical pipe, and a support frame is installed on the outer wall of the moving seat facing the downward pressure detection mechanism.

[0008] Furthermore, the rotating mechanism includes a gear ring installed on the outer wall of the circular ring, and a gear driven by a rotating motor is installed between the inner walls at both ends of the movable seat. The gear is meshed with the gear ring, and the position of the bamboo is limited by a limiting mechanism. The rotating motor drives the gear to rotate, thereby driving the gear ring to rotate, and the rotation of the gear ring drives the circular ring to rotate to complete the rotation adjustment of the bamboo detection surface.

[0009] Furthermore, the downward pressure detection mechanism includes a circular plate installed on the top outer wall of the workbench through a bracket, a hydraulic cylinder is installed on the top outer wall of the circular plate, one end of the piston rod of the hydraulic cylinder is installed with a lifting plate located at the bottom of the circular plate, a round block is fixedly connected to the bottom outer wall of the lifting plate, a pressure sensor is installed on the bottom outer wall of the round block, a sleeve block that can move up and down is installed on the outer wall of the round block through a connecting assembly, a threaded groove is opened on the bottom outer wall of the sleeve block, a connecting threaded rod is inserted in the threaded groove, a column is fixedly connected to the bottom outer wall of the connecting threaded rod, and a downward pressure rod is installed on the bottom outer wall of the column.

[0010] Furthermore, the connecting assembly includes ear plates installed on the outer walls at both ends of the round block, the ear plates are provided with through grooves, vertical rods are installed on the outer walls at both ends of the sleeve block, the vertical rods are inserted into the through grooves, the top outer wall of the vertical rods is provided with threads, and removable nuts are installed on the threads of the vertical rods, and the nuts are located on the top outer wall of the ear plates.

[0011] Furthermore, the buffer mechanism includes a slide groove opened on the inner wall of the bracket, a buffer rod is installed in the slide groove, a groove plate is slidably sleeved on the top of the outer wall of the buffer rod, a buffer spring surrounding the buffer rod is installed between the slide groove and the groove plate, an annular block is installed on the groove plate, the lifting plate is inserted into the annular block, fan-shaped grooves are opened on both sides of the inner wall of the annular block, the interior of the lifting plate is a hollow structure, displacement grooves corresponding to the fan-shaped grooves are opened on the outer wall of the lifting plate, a rotating block driven by a buffer motor is installed inside the lifting plate, and notches matching the two ends of the rotating block are opened at both ends of the bottom outer wall of the annular block.

[0012] Furthermore, the judgment mechanism includes positioning grooves opened on both sides of the middle part of the outer wall at the top of the workbench, a positioning block is inserted in the positioning groove, a detection box is installed on the top outer wall of the positioning block, square grooves are opened at the bottom of the outer walls at both ends of the detection box, side boxes connected to the detection box through the square grooves are installed on the outer walls at both ends of the detection box, liquid level sensors are installed on the inner walls of the side boxes, vertical grooves are opened on the inner walls on both sides of the detection box, a floating plate is installed in the detection box through the vertical groove, an adjusting threaded rod is installed on the top outer wall of the floating plate, and a bearing block is sleeved on the outer wall of the adjusting threaded rod.

[0013] Furthermore, cross bars are fixedly connected to the outer walls on both sides of the lower pressure rod, side plates are installed on the cross bars, limit plates are sleeved on the outer walls of the cross bars, mounting springs surrounding the cross bars are installed between the side plates and the limit plates, side grooves are opened on the outer walls on both sides of the lower pressure rod, rubber sleeves are sleeved on the bottom of the outer wall of the lower pressure rod, plug blocks are installed on the inner walls of the limit plates, and the plug blocks insert the rubber sleeves into the side grooves under the action of the mounting springs to complete the installation of the rubber sleeves on the lower pressure rod, cross plates are installed on the outer walls at both ends of the column, cleaning tubes facing the lower pressure rod are embedded in the cross plates, and cleaning fans are installed in the cleaning tubes.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The bamboo bending strength testing device can provide two bending strength testing modes, buffering and non-buffering, when testing the bending strength of bamboo, by means of the provided downward pressure testing mechanism and the buffering mechanism, so that the selection is more comprehensive when testing the bending strength of bamboo. The provided rotating mechanism cooperates with the limiting mechanism, so that the testing surface of the bamboo can be adjusted according to actual testing and use requirements. The provided adjusting mechanism can change the humidity and temperature of the bamboo, and further change the physical properties of the bamboo, so as to facilitate the testing of the bending strength of the bamboo in different environments, so that the testing results are more comprehensive, and it is convenient for researchers to improve the bamboo, so as to improve the use experience and loyalty of customers who purchase the bamboo.

[0015] At the same time, the air pump in the limiting mechanism is started by pumping, and the gas is pumped into the rubber sleeve through the connecting air pipe and the vertical pipe. The bamboo is wrapped inside by the expansion of the rubber sleeve, and the bamboo is limited, so that the limit is suitable for bamboos of different specifications and shapes, which is convenient for use. A wear-resistant coating can also be added to the inner wall of the rubber sleeve that contacts the bamboo to extend the service life of the rubber sleeve. The positioning block is matched with the positioning groove, so that the judgment mechanism is easy to disassemble as a whole. The adjusting threaded rod is matched with the bearing block, so that the height of the bearing block is easy to adjust, which is suitable for bamboos to be tested of different heights. The judgment mechanism is made by combining single components, with a low overall cost, and is easy for maintenance personnel to maintain or replace.

[0016] At the same time, the rubber sleeve can protect the bamboo when the lower pressure rod is subjected to bending test, thereby reducing the probability of damaging the surface of the bamboo; the side grooves, side plates, cross bars, limit plates and mounting springs can be provided, so that the rubber sleeve is easy to disassemble and replace; the cleaning tube and the cleaning fan can be provided to clean the inspection part of the bamboo before the bending test is carried out, thereby reducing the influence of debris on the bending strength of the bamboo. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic diagram of the positioning groove structure of the present invention; Figure 3 It is a schematic diagram of the structure of the limiting mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of part of the regulating mechanism of the present invention; Figure 5 It is a schematic diagram of the circular groove structure of the present invention; Figure 6 It is a schematic diagram of the bottom structure of the circular plate of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the partial downward pressure detection mechanism of the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the lifting plate and the annular block of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the lower pressing rod of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the judgment mechanism of the present invention.

[0018] In the figure: 1. workbench; 2. limit mechanism; 201. moving seat; 202. connecting plate; 203. rubber sleeve; 204. circular ring; 205. first electric push rod; 206. whipping air pump; 207. top plate; 208. connecting air pipe; 209. vertical pipe; 210. support frame; 3. rotating mechanism; 301. gear ring; 302. gear; 4. adjusting mechanism; 401. bottom box; 402. connecting pipe; 403. second electric push rod; 404. telescopic pipe; 405. nozzle; 406. transfer box; 407. mounting plate; 408. filter plate; 409. top box; 410. drying pipe; 411. exhaust fan; 412. electric heating wire; 413. circular groove; 5. downward pressure detection mechanism; 501. circular plate; 502. hydraulic cylinder; 503. bracket; 504. lifting plate; 505, round block; 506, sleeve block; 507, cleaning tube; 508, pressure sensor; 509, vertical rod; 510, ear plate; 511, nut; 512, pressing rod; 513, rubber sleeve; 514, cross bar; 515, side plate; 516, mounting spring; 517, limit plate; 518, plug block; 519, connecting threaded rod; 6, judgment mechanism; 601, positioning groove; 602, detection box; 603, positioning block; 604, vertical groove; 605, liquid level sensor; 606, floating plate; 607, bearing block; 608, adjusting threaded rod; 609, side box; 7, buffer mechanism; 701, buffer rod; 702, buffer spring; 703, groove plate; 704, annular block; 705, notch; 706, fan-shaped groove; 707, rotating block; 8, screw slide assembly. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In different application scenarios, understanding the bending strength of bamboo can help choose the most suitable material to ensure the overall performance of the project. Through a large amount of test data, industry standards and specifications can be formulated for bamboo, providing a basis for production and use, and providing data support for scholars and engineers engaged in material science research, so as to promote the understanding and application of bamboo. In the production and processing of bamboo, bamboo bending strength equipment is needed. The bamboo bending strength testing equipment provided by the present invention is specially used for performing bending strength testing operations on bamboo under different temperatures and humidities. In the process of using this equipment to perform bending strength testing operations, it is necessary to power the components in the equipment that need power supply in advance to ensure the normal operation of the equipment.

[0021] like Figure 1-Figure 10As shown, the present invention provides a technical solution: a bamboo bending strength testing device, comprising a workbench 1, a downward pressure detection mechanism 5 for testing the bending strength of bamboo is installed in the middle of the top outer wall of the workbench 1, a judgment mechanism 6 for judging whether the bamboo is bent is installed at the bottom of the downward pressure detection mechanism 5 on the top outer wall of the workbench 1, a buffer mechanism 7 for buffering the downward pressure of the downward pressure detection mechanism 5 is installed on the downward pressure detection mechanism 5, a screw slide assembly 8 driven by a driving motor is installed on the bottom outer wall of the workbench 1, and the screw in the screw slide assembly 8 is a bidirectional threaded rod, The slide on the screw slide assembly 8 is slidably sleeved on the outer walls at both ends of the bidirectional threaded rod. A limiting mechanism 2 for fixing and limiting the bamboo material is installed on the slide of the screw slide assembly 8. A rotating mechanism 3 for adjusting the rotational position of the bamboo material is installed on the limiting mechanism 2. An adjusting mechanism 4 for changing the properties of the bamboo material is installed at both ends of the downward pressure detection mechanism 5 on the top outer wall of the workbench 1. The adjusting mechanism 4 includes a bottom box 401 installed on the workbench 1. The bottom of the outer walls on both sides of the bottom box 401 are both installed with connecting pipes 402. The outer walls of the connecting pipes 402 are both installed with pumping devices. A telescopic tube 404 is installed on the top outer wall of the connecting tube 402, a top box 409 is installed at one end of the discharge pipe port of the telescopic tube 404, the top outer wall of the bottom box 401 and the bottom outer wall of the top box 409 are both arc surfaces, a plurality of nozzles 405 are installed on the bottom outer wall of the top box 409, a plurality of circular grooves 413 are opened on the top outer wall of the bottom box 401, and fixing plates are installed on the outer walls of both sides of the bottom box 401 and the top box 409, and the fixing plates on the bottom box 401 are installed with second electric push rods 403 whose piston rods are fixedly connected to the fixing plates on the top box 409, and the top box 409 is provided with a plurality of circular grooves 413. Transfer boxes 406 are installed on the outer walls at both ends, filter plates 408 and mounting plates 407 are respectively installed on the top outer wall and the bottom outer wall of the transfer box 406, and a plurality of drying tubes 410 facing the top of the bottom box 401 are embedded and installed on the mounting plate 407, exhaust fans 411 are installed in the drying tubes 410, and electric heating wires 412 are installed in the transfer box 406. The position of the bamboo material is limited by the limiting mechanism 2 in cooperation with the screw slide assembly 8, the properties of the bamboo material are adjusted by the adjusting mechanism 4, and the bending strength test of the bamboo material is completed by the downward pressure detection mechanism 5 in cooperation with the judgment mechanism 6.

[0022] It should be noted that when it is necessary to test the bending strength of bamboo, first, the staff takes the bamboo to be tested and places the bamboo in the two limit mechanisms 2. The distance between the two limit mechanisms 2 can be adjusted by the provided screw slide assembly 8, so as to limit the bamboo of different lengths. At the same time, the bamboo is limited by a single limit mechanism 2, and the position of the limit mechanism 2 is adjusted by the screw slide assembly 8, so that the position of the bamboo can be adjusted. When the screw slide assembly 8 needs to be used, the bidirectional threaded rod in the screw slide assembly 8 is driven by starting the drive motor. The two slides in the screw slide assembly 8 are driven to move, thereby adjusting the distance between the two limit mechanisms 2. The limit mechanism 2 cooperates with the screw slide assembly 8 to move the part of the bamboo to be tested to between the downward pressure detection mechanism 5 and the judgment mechanism 6. The downward pressure detection mechanism 5 cooperates with the judgment mechanism 6 to test the bending strength of the bamboo. Before the test, when the bamboo is moved, the detection surface of the bamboo can be adjusted according to the actual test requirements through the provided rotating mechanism 3. The humidity and temperature of the bamboo can be changed through the provided adjusting mechanism 4, thereby adjusting the physical properties of the bamboo. The change is made to facilitate the detection of the bending strength of bamboo in different environments, so that the detection results are more comprehensive, which is convenient for researchers to improve bamboo, so as to improve the user experience and loyalty of customers who purchase bamboo. A liquid injection tube is installed on the top box 409, and the liquid to be sprayed is injected into the top box 409 through the liquid injection tube. For example, when the humidity of the bamboo needs to be changed, water can be injected into the top box 409 through the liquid injection tube. When the adjustment mechanism 4 is used, the water in the top box 409 is sprayed onto the surface of the bamboo through the nozzle 405 to change the humidity of the bamboo. Through the plurality of circular grooves 413 on the bottom box 401, the nozzle 40 can be adjusted. The sprayed water that is not absorbed by the bamboo is collected, and then pumped into the top box 409 through the provided connecting pipe 402, the liquid pump and the telescopic pipe 404 to save resources. By starting the electric heating wire 412 in the transfer box 406 and the exhaust fan 411 in the drying pipe 410, the heated air can be blown to the surface of the bamboo to change the temperature of the bamboo. The impurities in the air can be filtered through the provided filter plate 408. The distance between the top box 409 and the bottom box 401 can be adjusted according to actual use requirements through the provided second electric push rod 403 and the telescopic pipe 404.

[0023] like Figure 3As shown, the limiting mechanism 2 includes a moving seat 201 installed on the slide in the screw slide assembly 8, connecting plates 202 are installed on the outer walls of both sides of the moving seat 201, a top plate 207 is installed on the top between the connecting plates 202, and a pumping air pump 206 is installed on the top plate 207. A ring 204 is rotatably connected between the inner walls of both sides of the moving seat 201 through a bearing, a rubber sleeve 203 is embedded and installed on the inner wall of the ring 204, and a rubber sleeve 203 is embedded and installed on the top of the outer wall of the ring 204. A vertical pipe 209 communicates with the rubber sleeve 203, and a valve is installed on the outer wall of the vertical pipe 209. A connecting air pipe 208 connected to the output end of the pump 206 is installed at the bottom of the pump 206. A first electric push rod 205 with one end of a piston rod fixedly connected to the connecting air pipe 208 is installed on the bottom outer wall of the top plate 207. The pipe mouth of the connecting air pipe 208 is inserted into the vertical pipe 209, and a support frame 210 is installed on the outer wall of the movable seat 201 facing the downward pressure detection mechanism 5.

[0024] It should be noted that when the limiting mechanism 2 is needed, the staff will place the bamboo in the ring 204 and start the air pump 206 to evacuate the air and fill the rubber sleeve 203 with the gas through the connecting air pipe 208 and the vertical pipe 209. The rubber sleeve 203 expands and wraps the bamboo inside, so that the bamboo can be limited. It is suitable for bamboo of different specifications and shapes, which is convenient for use. At the same time, a wear-resistant coating can be added to the inner wall of the rubber sleeve 203 that contacts the bamboo to extend the service life of the rubber sleeve 203. The pressure applied to the bamboo by the inflation of the rubber sleeve 203 is small, which is convenient for the bending strength test and convenient for use. The support frame 210 can be provided to support the bamboo before the rubber sleeve 203 is inflated. When the inflation is completed, the connecting air pipe 208 is lifted and the valve is closed by resetting the first electric push rod 205. The valve can be opened to deflate to reduce the pressure or release the limit.

[0025] like Figure 3 As shown, the rotating mechanism 3 includes a toothed ring 301 installed on the outer wall of the circular ring 204, and a gear 302 driven by a rotating motor is installed between the inner walls at both ends of the moving seat 201. The gear 302 is meshed with the toothed ring 301, and the position of the bamboo is limited by the limiting mechanism 2. The rotating motor drives the gear 302 to rotate and drive the toothed ring 301 to rotate, and the rotation of the toothed ring 301 drives the circular ring 204 to rotate to complete the rotation adjustment of the detection surface of the bamboo.

[0026] It should be noted that when the rotating mechanism 3 needs to be used, the rotating motor is started to drive the gear 302 to rotate, and the rotation of the gear 302 drives the gear ring 301 to rotate, and the rotation of the gear ring 301 can drive the ring 204 to rotate, and then the bamboo material limited in the ring 204 is rotationally adjusted, so as to adjust the detection surface of the bamboo material according to actual use requirements. When the adjustment mechanism 4 is running, the operating efficiency of the adjustment mechanism 4 can also be improved by rotating the mechanism 3.

[0027] like Figure 6-Figure 9 As shown, the downward pressure detection mechanism 5 includes a circular plate 501 installed on the top outer wall of the workbench 1 through a bracket 503, a hydraulic cylinder 502 is installed on the top outer wall of the circular plate 501, and a lifting plate 504 located at the bottom of the circular plate 501 is installed at one end of the piston rod of the hydraulic cylinder 502. A round block 505 is fixedly connected to the bottom outer wall of the lifting plate 504, and a pressure sensor 508 is installed on the bottom outer wall of the round block 505. A sleeve block 506 that can move up and down is installed on the outer wall of the round block 505 through a connecting component, and a threaded groove is opened on the bottom outer wall of the sleeve block 506, and a connecting threaded rod 519 is inserted in the threaded groove. A column is fixedly connected to the bottom outer wall of the connecting threaded rod 519, and a downward pressure rod 512 is installed on the bottom outer wall of the column.

[0028] It should be noted that when it is necessary to use the downward pressure detection mechanism 5, the hydraulic cylinder 502 is started to drive the lifting plate 504 to move downward, and the downward movement of the lifting plate 504 drives the round block 505, the pressure sensor 508 and the sleeve block 506 to move downward. After the movement stroke of the sleeve block 506 is completed, the sleeve block 506 will fit with the pressure sensor 508, and then the bending of the bamboo is detected by moving the downward pressure rod 512, and the pressure change is monitored by the pressure sensor 508. At the same time, the judgment mechanism 6 is used to judge whether the bamboo is bent, so as to detect the bending strength of the bamboo. The threaded groove is provided to cooperate with the connecting threaded rod 519, so that the pressing rod 512 is easy to disassemble, which is beneficial to the subsequent maintenance personnel.

[0029] like Figure 7 As shown, the connecting assembly includes ear plates 510 installed on the outer walls at both ends of the round block 505, and a through groove is provided on the ear plate 510. Vertical rods 509 are installed on the outer walls at both ends of the sleeve block 506. The vertical rods 509 are inserted into the through grooves. The top outer wall of the vertical rods 509 is provided with threads, and a removable nut 511 is installed on the threads of the vertical rods 509. The nut 511 is located on the top outer wall of the ear plate 510.

[0030] It should be noted that, by providing the nut 511 in conjunction with the vertical rod 509, the connecting assembly can be easily disassembled, so that the sleeve block 506 can be separated from the round block 505, which is convenient for subsequent maintenance personnel to maintain the components and is easy to use. The vertical rod 509 can slide in the through groove, and the nut 511 provided can play a limiting role.

[0031] like Figure 6 and Figure 7 As shown, the buffer mechanism 7 includes a slide groove opened on the inner wall of the bracket 503, a buffer rod 701 is installed in the slide groove, a groove plate 703 is slidably sleeved on the top of the outer wall of the buffer rod 701, a buffer spring 702 surrounding the buffer rod 701 is installed between the slide groove and the groove plate 703, an annular block 704 is installed on the groove plate 703, the lifting plate 504 is inserted into the annular block 704, fan-shaped grooves 706 are opened on both sides of the inner wall of the annular block 704, the lifting plate 504 is a hollow structure inside, and a displacement groove corresponding to the fan-shaped groove 706 is opened on the outer wall of the lifting plate 504, and a rotating block 707 driven by a buffer motor is installed inside the lifting plate 504, and notches 705 adapted to the two ends of the rotating block 707 are opened at both ends of the bottom outer wall of the annular block 704.

[0032] It should be noted that when the buffer mechanism 7 needs to be used, the buffer motor is started to drive the rotating block 707 to rotate 90° clockwise, so that the rotating block 707 can be inserted into the other end of the fan-shaped groove 706. At this time, by starting the downward pressure detection mechanism 5, the lifting plate 504 will drive the annular block 704 to move downward together, and then under the action of the buffer rod 701 and the buffer spring 702, the buffer compressive strength test is performed. Through the two methods of buffer compressive strength test and non-buffer compressive strength test, when testing the bending strength of bamboo, the choice is more comprehensive and convenient for use. When the buffer mechanism 7 is not needed, the buffer motor is started to drive the rotating block 707 to rotate, so that the rotating block 707 is reset, that is, the two ends of the rotating block 707 are located in the slot 705.

[0033] like Fig.10 As shown, the judging mechanism 6 includes positioning grooves 601 provided on both sides of the middle of the top outer wall of the workbench 1, a positioning block 603 is inserted in the positioning groove 601, a detection box 602 is installed on the top outer wall of the positioning block 603, square grooves are provided at the bottom of the outer walls at both ends of the detection box 602, side boxes 609 connected with the detection box 602 through the square grooves are installed on the outer walls at both ends of the detection box 602, a liquid level sensor 605 is installed on the inner wall of the side box 609, vertical grooves 604 are provided on the inner walls of both sides of the detection box 602, a floating plate 606 is installed in the detection box 602 through the vertical grooves 604, an adjusting threaded rod 608 is installed on the top outer wall of the floating plate 606, and a bearing block 607 is sleeved on the outer wall of the adjusting threaded rod 608.

[0034] It should be noted that the detection box 602 is filled with water or other liquids and fluids, which are selected according to actual usage. The float 606 will rise under the action of buoyancy. When the judgment mechanism 6 is needed, the bearing block 607 is rotated to make the bearing block 607 contact with the bottom of the bamboo material. When the bamboo material is bent, the bearing block 607 will be subjected to force, and then the float 606 will move down, thereby causing the liquid level in the side box 609 to rise. The liquid level can be monitored by the liquid level sensor 605 to determine whether the bamboo material is bent, which is convenient for use. The positioning block 603 is provided to cooperate with the positioning groove 601, so that the judgment mechanism 6 is easy to disassemble as a whole. The adjusting threaded rod 608 is provided to cooperate with the bearing block 607, so that the height of the bearing block 607 is easy to adjust, which is suitable for bamboo materials to be detected of different heights. The judgment mechanism 6 is made by combining single components, with a low overall cost, and is easy for maintenance personnel to maintain or replace.

[0035] like Figure 6 and Fig. 9 As shown, cross bars 514 are fixedly connected to the outer walls of both sides of the lower pressure rod 512, and side plates 515 are installed on the cross bars 514. Limiting plates 517 are sleeved on the outer walls of the cross bars 514, and mounting springs 516 surrounding the cross bars 514 are installed between the side plates 515 and the limiting plates 517. Side grooves are opened on the outer walls of both sides of the lower pressure rod 512, and a rubber sleeve 513 is sleeved on the bottom of the outer wall of the lower pressure rod 512. Insert blocks 518 are installed on the inner walls of the limiting plates 517. The insert blocks 518 insert the rubber sleeve 513 into the side grooves under the action of the installing springs 516 to complete the installation of the rubber sleeve 513 on the lower pressure rod 512. Cross plates are installed on the outer walls of both ends of the column, and cleaning pipes 507 facing the lower pressure rod 512 are embedded in the cross plates, and cleaning fans are installed in the cleaning pipes 507.

[0036] It should be noted that, by means of the rubber sleeve 513, the bamboo material can be protected when the lower pressing rod 512 is subjected to bending test, thereby reducing the probability of damaging the surface of the bamboo material; by means of the side grooves, side plates 515, cross bars 514, limit plates 517 and mounting springs 516, the rubber sleeve 513 can be easily disassembled and replaced; by means of the cleaning tube 507 in conjunction with the cleaning fan, the inspection part of the bamboo material can be cleaned before the bending test is carried out on the bamboo material, thereby reducing the influence of debris on the bending strength of the bamboo material.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A bamboo bending strength testing device, comprising a workbench (1), characterized in that: A downward pressure detection mechanism (5) for detecting the bending strength of bamboo is installed in the middle of the top outer wall of the workbench (1); a judgment mechanism (6) for judging whether the bamboo is bent is installed at the bottom of the downward pressure detection mechanism (5) on the top outer wall of the workbench (1); a buffer mechanism (7) for buffering the downward pressure of the downward pressure detection mechanism (5) is installed on the downward pressure detection mechanism (5); a screw rod slide assembly (8) driven by a driving motor is installed on the bottom outer wall of the workbench (1); the screw rod in the screw rod slide assembly (8) is a bidirectional threaded rod; the slide on the screw rod slide assembly (8) is slidably sleeved on the outer walls at both ends of the bidirectional threaded rod; A limit mechanism (2) for fixing and limiting the position of bamboo is installed on the slide of the rod slide assembly (8); a rotation mechanism (3) for adjusting the rotation position of the bamboo is installed on the limit mechanism (2); an adjustment mechanism (4) for changing the properties of the bamboo is installed at both ends of the downward pressure detection mechanism (5) on the top outer wall of the workbench (1); the adjustment mechanism (4) comprises a bottom box (401) installed on the workbench (1); connecting pipes (402) are installed at the bottom of the outer walls of both sides of the bottom box (401); a liquid pump is installed on the outer wall of the connecting pipe (402); and a telescopic The telescopic tube (404) is provided with a top box (409) at one end of the discharge pipe port of the telescopic tube (404), the top outer wall of the bottom box (401) and the bottom outer wall of the top box (409) are both arc surfaces, a plurality of nozzles (405) are installed on the bottom outer wall of the top box (409), a plurality of circular grooves (413) are provided on the top outer wall of the bottom box (401), fixing plates are installed on the outer walls of both sides of the bottom box (401) and the top box (409), the fixing plates on the bottom box (401) are both provided with a second electric push rod (403) whose piston rod is fixedly connected to the fixing plate on the top box (409), and transfer rods are installed on the outer walls of both ends of the top box (409). The transfer box (406) is provided with a filter plate (408) and a mounting plate (407) respectively mounted on the top outer wall and the bottom outer wall of the transfer box (406); a plurality of drying tubes (410) facing the top of the bottom box (401) are embedded and mounted on the mounting plate (407); exhaust fans (411) are mounted in the drying tubes (410); a heating wire (412) is mounted in the transfer box (406); the position of the bamboo material is limited by a limiting mechanism (2) in cooperation with a screw rod slide assembly (8); the property of the bamboo material is adjusted by an adjusting mechanism (4); and the bending strength test of the bamboo material is completed by a downward pressure detection mechanism (5) in cooperation with a judgment mechanism (6).

2. The bamboo bending strength testing device according to claim 1, characterized in that: The limiting mechanism (2) comprises a movable seat (201) mounted on a slide in a screw slide assembly (8), connecting plates (202) being mounted on both side outer walls of the movable seat (201), a top plate (207) being mounted on the top between the connecting plates (202), a pumping air pump (206) being mounted on the top plate (207), a circular ring (204) being rotatably connected between the inner walls of both sides of the movable seat (201) via a bearing, a rubber sleeve (203) being embedded and mounted on the inner wall of the circular ring (204), and a rubber sleeve (203) being embedded and mounted on the top of the outer wall of the circular ring (204). A vertical pipe (209) is connected to the rubber sleeve (203), a valve is installed on the outer wall of the vertical pipe (209), a connecting air pipe (208) connected to the output end of the pumping air pump (206) is installed at the bottom of the pumping air pump (206), a first electric push rod (205) is installed on the outer wall of the bottom of the top plate (207), one end of the piston rod is fixedly connected to the connecting air pipe (208), the pipe mouth of the connecting air pipe (208) is inserted into the vertical pipe (209), and a support frame (210) is installed on the outer wall of the movable seat (201) facing the downward pressure detection mechanism (5).

3. The bamboo bending strength testing device according to claim 1 is characterized in that: The rotating mechanism (3) comprises a toothed ring (301) mounted on the outer wall of the circular ring (204); a gear (302) driven by a rotating motor is mounted between the inner walls at both ends of the movable seat (201); the gear (302) is meshed with the toothed ring (301); the position of the bamboo material is limited by the limiting mechanism (2); the rotating motor drives the gear (302) to rotate, thereby driving the toothed ring (301) to rotate; the rotation of the toothed ring (301) drives the circular ring (204) to rotate, thereby completing the rotation adjustment of the detection surface of the bamboo material.

4. The bamboo bending strength testing device according to claim 1, characterized in that: The downward pressure detection mechanism (5) comprises a circular plate (501) mounted on the top outer wall of the workbench (1) via a bracket (503); a hydraulic cylinder (502) is mounted on the top outer wall of the circular plate (501); a lifting plate (504) located at the bottom of the circular plate (501) is mounted on one end of the piston rod of the hydraulic cylinder (502); a circular block (505) is fixedly connected to the bottom outer wall of the lifting plate (504); a pressure sensor (508) is mounted on the bottom outer wall of the circular block (505); a sleeve block (506) movable up and down is mounted on the outer wall of the circular block (505) via a connecting assembly; a threaded groove is formed on the bottom outer wall of the sleeve block (506); a connecting threaded rod (519) is inserted into the threaded groove; a column is fixedly connected to the bottom outer wall of the connecting threaded rod (519); a downward pressure rod (512) is mounted on the bottom outer wall of the column.

5. The bamboo bending strength testing device according to claim 4, characterized in that: The connection assembly comprises ear plates (510) mounted on the outer walls at both ends of the round block (505), the ear plates (510) being provided with through grooves, vertical rods (509) being mounted on the outer walls at both ends of the sleeve block (506), the vertical rods (509) being inserted into the through grooves, the top outer wall of the vertical rods (509) being provided with threads, and a detachable nut (511) being mounted on the threads of the vertical rods (509), the nut (511) being located on the top outer wall of the ear plates (510).

6. The bamboo bending strength testing device according to claim 1, characterized in that: The buffer mechanism (7) comprises a slide groove formed on the inner wall of the bracket (503), a buffer rod (701) being installed in the slide groove, a groove plate (703) being slidably sleeved on the top of the outer wall of the buffer rod (701), a buffer spring (702) surrounding the buffer rod (701) being installed between the slide groove and the groove plate (703), an annular block (704) being installed on the groove plate (703), a lifting plate (504) being inserted into the annular block (704), fan-shaped grooves (706) being formed on both sides of the inner wall of the annular block (704), the lifting plate (504) being hollow in structure, a displacement groove corresponding to the fan-shaped groove (706) being formed on the outer wall of the lifting plate (504), a rotating block (707) driven by a buffer motor being installed inside the lifting plate (504), and notches (705) matching with the two ends of the rotating block (707) being formed at the two ends of the bottom outer wall of the annular block (704).

7. The bamboo bending strength testing device according to claim 1, characterized in that: The judging mechanism (6) comprises positioning grooves (601) provided on both sides of the middle of the top outer wall of the workbench (1), a positioning block (603) being inserted into the positioning groove (601), a detection box (602) being mounted on the top outer wall of the positioning block (603), square grooves being provided at the bottom of the outer walls at both ends of the detection box (602), side boxes (609) being mounted on the outer walls at both ends of the detection box (602) and communicating with the detection box (602) through the square grooves, a liquid level sensor (605) being mounted on the inner wall of the side box (609), vertical grooves (604) being provided on the inner walls at both sides of the detection box (602), a floating plate (606) being mounted in the detection box (602) through the vertical grooves (604), an adjusting threaded rod (608) being mounted on the top outer wall of the floating plate (606), and a bearing block (607) being sleeved on the outer wall of the adjusting threaded rod (608).

8. The bamboo bending strength testing device according to claim 4, characterized in that: The outer walls on both sides of the lower pressure rod (512) are fixedly connected to cross bars (514), the cross bars (514) are installed with side plates (515), the outer walls of the cross bars (514) are sleeved with limit plates (517), and a mounting spring (516) surrounding the cross bars (514) is installed between the side plates (515) and the limit plates (517). The outer walls on both sides of the lower pressure rod (512) are provided with side grooves, and the bottom of the outer wall of the lower pressure rod (512) is sleeved with a rubber The sleeve (513) and the inner wall of the limit plate (517) are both installed with an insert block (518), and the insert block (518) inserts the rubber sleeve (513) into the side groove under the action of the installation spring (516) to complete the installation of the rubber sleeve (513) on the lower pressure rod (512). The outer walls of both ends of the column are both installed with a horizontal plate, and a cleaning tube (507) facing the lower pressure rod (512) is embedded in the horizontal plate, and a cleaning fan is installed in the cleaning tube (507).

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