Concrete curb breaking strength testing device

Abstract

The invention discloses a concrete curb breaking strength testing device, and relates to the technical field of curb testing. A bending-resistant pressure applying part and a compression-resistant pressure applying part are horizontally and slidably arranged on a pressure applying lifting seat, two vertical supporting plates are symmetrically arranged below the pressure applying lifting seat, an annular guide groove and a vertical guide groove which communicate with each other are formed in the surfaces of the vertical supporting plates, and two lifting guide grooves are symmetrically formed in the surface of a conversion power disc; the anti-bending pressure-bearing part is in sliding fit between the two corresponding lifting guide grooves, the anti-bending pressure-bearing part is in sliding fit with the annular guide grooves in the two sides of the anti-bending pressure-bearing part, the anti-pressure pressure-bearing part is in sliding fit between the two corresponding lifting guide grooves, and the anti-pressure pressure-bearing part is in sliding fit with the annular guide grooves in the two sides of the anti-pressure pressure-bearing part; and the lifting seat is used for pushing the anti-bending pressure-bearing part or the anti-pressure pressure-bearing part to enter the vertical guide groove from the annular guide groove. According to the invention, the breaking strength and compressive strength of the edge stone can be automatically tested, and the testing efficiency of the concrete edge stone is improved.

Description

Technical Field

[0001] This invention belongs to the field of curbstone testing technology, and in particular relates to a device for testing the flexural strength of concrete curbstones. Background Technology

[0002] Curbstones are boundary stones placed at the edges of road surfaces. They are used to mark the edges between the carriageway and the sidewalk, between the carriageway and the median strip, or along the edges of the median strip. As a decorative component in modern road engineering, they serve to define the road surface, maintain a neat appearance, protect the road edges, and beautify the environment. Due to environmental factors, insufficient bending strength can cause curbstones to crack and break. Water seeping into the base layer through these cracks can significantly reduce their load-bearing capacity. Therefore, curbstones require high flexural and compressive strength.

[0003] In existing technologies, to better test concrete curb stones, it is often necessary to test not only the flexural strength but also the compressive strength. However, existing technologies often perform flexural and compressive strength tests independently, using separate compressive strength testing equipment and flexural strength testing equipment, which cannot achieve integrated testing of flexural and compressive strength, thus increasing the testing cost of concrete curb stones. Summary of the Invention

[0004] The purpose of this invention is to provide a concrete curbstone flexural strength testing device. Through the specific structural design of the load-bearing component, the power conversion component, the pressure-bearing component, and the curbstone loading mechanism, this invention solves the problem that existing concrete curbstone testing devices cannot achieve integrated testing of flexural strength and compressive strength, thereby increasing the testing cost of concrete curbstones.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a testing device for the flexural strength of concrete curb stones, comprising a testing mechanism; wherein, the testing mechanism includes a bearing component, the bearing component includes a pressure-applying lifting seat, on which a flexural pressure-applying part and a compressive pressure-applying part are horizontally slidably arranged, and two vertical support plates are symmetrically arranged below the pressure-applying lifting seat, the surfaces of the vertical support plates having interconnected annular guide grooves and vertical guide grooves; a conversion power component, the conversion power component being installed between the two vertical support plates, the conversion power component including a conversion motor... The power plate has two symmetrically arranged lifting guide grooves on its surface. A pressure-bearing assembly is positioned between two vertical support plates. This assembly includes a bending-resistant pressure-bearing part and a compressive-resistant pressure-bearing part. The bending-resistant pressure-bearing part is slidably fitted between the corresponding two lifting guide grooves and also slidably fitted with the annular guide grooves on both sides. The compressive-resistant pressure-bearing part is slidably fitted between the corresponding two lifting guide grooves and also slidably fitted with the annular guide grooves on both sides. A lifting seat is provided below the pressure-applying lifting seat, and the lifting seat is used to push the bending-resistant pressure-bearing part or the compressive-resistant pressure-bearing part from the annular guide groove into the vertical guide groove.

[0006] In this embodiment of the invention, the bearing assembly further includes a bearing frame, with guide channels on both sides of the bearing frame. The pressure lifting seat is slidably disposed between the two guide channels. An installation frame is fixed at the top inside the bearing frame. The output end of the hydraulic cylinder installed inside the installation frame is connected to the pressure lifting seat. A conversion screw is rotatably disposed inside the pressure lifting seat. The output end of the first conversion motor installed on one side of the pressure lifting seat is connected to the conversion screw.

[0007] In this embodiment of the invention, the anti-bending pressure application part consists of an anti-bending movable seat and an anti-bending pressure application component. The anti-bending movable seat is slidably disposed inside the pressure lifting seat and threadedly engaged with the conversion screw. The anti-bending pressure application component is fixedly installed at the bottom of the anti-bending movable seat. The anti-compression pressure application part consists of an anti-compression movable seat and an anti-compression pressure application component. The anti-compression movable seat is slidably disposed inside the pressure lifting seat and threadedly engaged with the conversion screw. The anti-compression pressure application component is fixedly installed at the bottom of the anti-compression movable seat.

[0008] In this embodiment of the invention, a horizontal support platform is fixed inside the support frame, and the vertical support plate is symmetrically fixed on the top of the horizontal support platform. The lifting seats are symmetrically arranged on both sides of the vertical support plate. An electric telescopic rod connected to the lifting seat is installed on the top of the horizontal support platform. A horizontal linkage frame is provided on one side of the support frame. The horizontal linkage frame is horizontally slidably connected to the corresponding lifting seat. A linkage motor is installed on the lifting seat corresponding to the horizontal linkage frame. The output end of the linkage motor is connected to a linkage screw. The horizontal linkage frame is sleeved on the linkage screw and the two are threaded together.

[0009] In this embodiment of the invention, the invention further includes a curbstone loading mechanism; wherein, the curbstone loading mechanism includes a curbstone loading frame, an upper loading seat and a lower guide seat are fixedly fixed on the inner side of the curbstone loading frame, the top of the upper loading seat is provided with a plurality of pressure-resistant passage openings and bending-resistant passage openings, and the top of the lower guide seat is provided with a guide wheel groove; the support frame is slidably disposed between the upper loading seat and the lower guide seat, the bottom of the support frame is equipped with a support guide wheel that rolls with the guide wheel groove, the output shaft of the walking motor installed on the top of the support frame is connected to a walking gear, and the walking gear seat fixed on the inner side of the curbstone loading frame meshes with the walking gear.

[0010] In this embodiment of the invention, the conversion power assembly further includes a second conversion motor, which is mounted on a corresponding vertical support plate. The output end of the second conversion motor is connected to a conversion power shaft that is rotatably connected to the two vertical support plates, and the conversion power disk is fixedly mounted on the conversion power shaft.

[0011] In this embodiment of the invention, the anti-bending pressure part includes an anti-bending pressure seat slidably disposed between two lifting guide grooves. Two roller mounting seats are symmetrically fixedly installed on the anti-bending pressure seat. An anti-bending pressure roller is detachably installed on the top of the roller mounting seat. The maximum width of the roller mounting seat along the axial direction of the anti-bending pressure roller is smaller than the anti-bending passage.

[0012] In this embodiment of the invention, the pressure-bearing part includes a pressure-bearing seat slidably disposed between two lifting guide grooves. Two positioning seats are symmetrically fixedly installed on the pressure-bearing seat. The positioning seats are adapted to the positions of the roller mounting seats. The horizontal linkage frame is disposed between the positioning seats and the roller mounting seats. A pressure-bearing component mounting seat is fixedly installed on the pressure-bearing seat. A pressure-bearing component is detachably installed at the bottom of the pressure-bearing component mounting seat.

[0013] The present invention has the following beneficial effects: 1. The present invention lifts the concrete edge stone placed on the upper loading seat to a set position by moving the upward flexural bearing roller. At this time, the concrete edge stone is supported by the flexural bearing rollers on both sides. Then, the hydraulic cylinder controls the pressure lifting seat to gradually descend to start the flexural strength test. The flexural pressure component, which descends synchronously with the pressure lifting seat, exerts pressure on the concrete edge stone to achieve the flexural strength test. When the pressure application component and the pressure bearing component are switched to the required position, the bottom of the concrete edge stone is supported by the upward moving pressure bearing component. The hydraulic cylinder controls the pressure lifting seat to gradually descend to start the compressive strength test. The compressive strength test is achieved by the compressive pressure component, which descends synchronously with the pressure lifting seat, exerts pressure on the concrete edge stone to achieve the compressive strength test. In this way, the flexural strength and compressive strength of the edge stone can be automatically tested, which improves the testing efficiency of the concrete edge stone.

[0014] 2. After completing the flexural and compressive strength tests of a concrete edge stone, this invention controls the rotation of the walking gear by starting the walking motor, causing the walking gear to roll along the walking gear seat, moving the entire test mechanism to the next position, and then conducting the flexural and compressive strength tests of the concrete edge stone again using the same control method. Compared with the traditional test method that requires removing and repositioning the edge stone after each test, the edge stone testing method in this application does not require frequent loading and unloading operations during the test, greatly freeing up labor and thus improving the testing efficiency of the edge stone. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the flexural strength testing device for concrete curb stones in this invention.

[0017] Figure 2 This is a schematic diagram of the curbstone loading mechanism in this invention.

[0018] Figure 3 This is a schematic diagram of the experimental mechanism in this invention.

[0019] Figure 4 This is a schematic diagram of the structure of the carrier component in this invention.

[0020] Figure 5 for Figure 4 A structural side view.

[0021] Figure 6 for Figure 4 A structural diagram viewed from below.

[0022] Figure 7 This is a schematic diagram of the power conversion component in this invention.

[0023] Figure 8 This is a schematic diagram of the pressure-bearing component in this invention.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Testing mechanism; 2-Bearing component; 201-Pressure lifting seat; 202-Vertical support plate; 203-Annular guide groove; 204-Vertical guide groove; 205-Lifting seat; 206-Bearing frame; 207-Guide channel; 208-Mounting frame; 209-Hydraulic cylinder; 210-Conversion screw; 211-First conversion motor; 212-Anti-bending moving seat; 213-Anti-bending pressure application component; 214-Anti-compression moving seat; 215-Anti-compression pressure application component; 216-Horizontal support platform; 217-Electric telescopic rod; 218-Horizontal linkage frame; 219-Linkage motor; 220-Linkage screw; 221-Support guide wheel. 222-Travel motor, 223-Travel gear, 3-Conversion power assembly, 301-Conversion power disc, 302-Lifting guide groove, 303-Second conversion motor, 304-Conversion power shaft, 4-Pressure-bearing assembly, 401-Anti-bending pressure-bearing seat, 402-Roller mounting seat, 403-Anti-bending pressure-bearing roller, 404-Anti-compression pressure-bearing seat, 405-Positioning seat, 406-Pressure-bearing component mounting seat, 407-Anti-compression pressure-bearing component, 5-Curvestone loading mechanism, 501-Curvestone loading rack, 502-Upper loading seat, 503-Lower guide seat, 504-Anti-compression passage, 505-Anti-bending passage, 506-Guide wheel groove. Detailed Implementation

[0026] 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.

[0027] For a specific implementation example, please refer to Implementation Example 1. Figures 1-8This invention relates to a testing device for the flexural strength of concrete curb stones, comprising a testing mechanism 1. The testing mechanism 1 includes a load-bearing component 2, a power conversion component 3, and a pressure-bearing component 4. The load-bearing component 2 includes a pressure-applying lifting seat 201, on which a flexural pressure-applying part and a compressive pressure-applying part are horizontally slidably arranged. Two vertical support plates 202 are symmetrically arranged below the pressure-applying lifting seat 201, and the surfaces of the vertical support plates 202 are provided with interconnected annular guide grooves 203 and vertical guide grooves 204. The power conversion component 3 is installed between the two vertical support plates 202 and includes a power conversion disc 301. Two lifting guide grooves 302 are symmetrically opened on the surface; the pressure-bearing component 4 is disposed between the two vertical support plates 202. The pressure-bearing component 4 includes a bending pressure-bearing part and a compressive pressure-bearing part. The bending pressure-bearing part is slidably engaged between the corresponding two lifting guide grooves 302, and the bending pressure-bearing part is slidably engaged with the annular guide grooves 203 on both sides. The compressive pressure-bearing part is slidably engaged between the corresponding two lifting guide grooves 302, and the compressive pressure-bearing part is slidably engaged with the annular guide grooves 203 on both sides. A lifting seat 205 is provided below the pressure lifting seat 201. The lifting seat 205 is used to push the bending pressure-bearing part or the compressive pressure-bearing part from the annular guide groove 203 into the vertical guide groove 204.

[0028] In this embodiment of the invention, such as Figure 4 and Figure 5 As shown, the supporting component 2 also includes a supporting frame 206. The supporting frame 206 has guide channels 207 on both sides. The pressure lifting seat 201 is slidably disposed between the two guide channels 207 to ensure that the pressure lifting seat 201 moves up and down smoothly. The top of the supporting frame 206 is fixed with a mounting frame 208. The output end of the hydraulic cylinder 209 installed inside the mounting frame 208 is connected to the pressure lifting seat 201. The up and down movement of the pressure lifting seat 201 inside the guide channel 207 is controlled by the hydraulic cylinder 209. The pressure lifting seat 201 is rotatably provided with a conversion screw 210. The output end of the first conversion motor 211 installed on one side of the pressure lifting seat 201 is connected to the conversion screw 210. When the conversion screw 210 is driven to rotate by the first conversion motor 211, the position of the anti-bending pressure part and the anti-compression pressure part at the position directly below the hydraulic cylinder 209 can be changed.

[0029] In this embodiment of the invention, such as Figure 5As shown, the anti-bending pressure part consists of an anti-bending movable seat 212 and an anti-bending pressure component 213. The anti-bending movable seat 212 is slidably disposed inside the pressure lifting seat 201 and threadedly engaged with the conversion screw 210. The anti-bending pressure component 213 is fixedly installed at the bottom of the anti-bending movable seat 212. The anti-compression pressure part consists of an anti-compression movable seat 214 and an anti-compression pressure component 215. The anti-compression movable seat 214 is slidably disposed inside the pressure lifting seat 201 and threadedly engaged with the conversion screw 210. The anti-compression pressure component 215 is fixedly installed at the bottom of the anti-compression movable seat 214. When the conversion screw 210 is rotated, the anti-bending pressure part and the anti-compression pressure part can move horizontally along the pressure lifting seat 201 synchronously, and the movement directions of the anti-bending pressure part and the anti-compression pressure part are the same.

[0030] In this embodiment of the invention, such as Figure 4 and Figure 6 As shown, a horizontal support platform 216 is fixed inside the support frame 206. A vertical support plate 202 is symmetrically fixed on the top of the horizontal support platform 216. Lifting seats 205 are symmetrically arranged on both sides of the vertical support plate 202. An electric telescopic rod 217 connected to the lifting seat 205 is installed on the top of the horizontal support platform 216. A horizontal linkage frame 218 is provided on one side of the support frame 206. The horizontal linkage frame 218 is horizontally slidably connected to the corresponding lifting seat 205. A linkage motor 219 is installed on the lifting seat 205 corresponding to the horizontal linkage frame 218. A linkage screw 220 is connected to the output end of the linkage motor 219. The horizontal linkage frame 218 is sleeved on the linkage screw 220 and the two are threaded together. The position of the horizontal linkage frame 218 in the initial state is as follows. Figure 4 As shown, when the linkage screw 220 is rotated by the linkage motor 219, the horizontal linkage frame 218 can be driven to move and insert into another lifting seat 205. Then, when each electric telescopic rod 217 is started, the lifting seats 205 on both sides can move up and down synchronously.

[0031] In this embodiment of the invention, such as Figure 7 As shown, the conversion power assembly 3 also includes a second conversion motor 303, which is mounted on the corresponding vertical support plate 202. The output end of the second conversion motor 303 is connected to a conversion power shaft 304 that is rotatably connected to the two vertical support plates 202. The conversion power disk 301 is fixedly mounted on the conversion power shaft 304. Thus, the second conversion motor 303 can control the conversion power shaft 304 to rotate, and the rotation of the conversion power shaft 304 can drive the two conversion power disks 301 to rotate synchronously. Initially, the flexural bearing part is in the upper position, and at this time, the flexural bearing part is at the intersection of the annular guide groove 203 and the vertical guide groove 204, while the lower compressive bearing part is completely in the annular guide groove 203. The flexural pressure application component 213 is located directly below the hydraulic cylinder 209. That is, the flexural strength test of the concrete edge stone can be completed at this stage.

[0032] Specific embodiment two, based on specific embodiment one, such as Figure 1 and Figure 2 As shown, the present invention also includes a curbstone loading mechanism 5; wherein, the curbstone loading mechanism 5 includes a curbstone loading frame 501, an upper loading seat 502 and a lower guide seat 503 are fixed on the inner side of the curbstone loading frame 501 respectively, the top of the upper loading seat 502 is provided with a plurality of pressure-resistant passages 504 and bending-resistant passages 505, and the top of the lower guide seat 503 is provided with a guide wheel groove 506.

[0033] The support frame 206 is slidably disposed between the upper loading seat 502 and the lower guide seat 503, which ensures that the support frame 206 moves smoothly inside the curbstone loading frame 501. The bottom of the support frame 206 is equipped with support guide wheels 221 that roll in cooperation with the guide wheel groove 506. During the horizontal movement of the support frame 206, each support guide wheel 221 rolls along the guide wheel groove 506. The output shaft of the walking motor 222 installed on the top of the support frame 206 is connected to the walking gear 223. The walking gear seat fixed inside the curbstone loading frame 501 meshes with the walking gear 223 (the walking gear seat is not shown in the figure). When the walking motor 222 is started to control the walking gear 223 to rotate, the walking gear 223 can roll along the walking gear seat, thereby realizing the horizontal movement of the entire test mechanism 1.

[0034] In this embodiment of the invention, such as Figure 8 As shown, the flexural pressure-bearing part includes a flexural pressure-bearing seat 401 slidably disposed between two lifting guide grooves 302. Two roller mounting seats 402 are symmetrically fixedly installed on the flexural pressure-bearing seat 401. A flexural pressure-bearing roller 403 is detachably installed on the top of the roller mounting seat 402. The maximum width of the roller mounting seat 402 along the axial direction of the flexural pressure-bearing roller 403 is less than the flexural passage 505. The pressure-bearing part includes a pressure-bearing seat 404 slidably disposed between two lifting guide grooves 302. Two positioning seats 405 are symmetrically fixedly installed on the pressure-bearing seat 404. The positioning seats 405 are adapted to the positions of the roller mounting seats 402. A horizontal linkage frame 218 is disposed between the positioning seats 405 and the roller mounting seats 402. A pressure-bearing component mounting seat 406 is fixedly installed on the pressure-bearing seat 404. A pressure-bearing component 407 is detachably installed at the bottom of the pressure-bearing component mounting seat 406.

[0035] In the initial state, the anti-bending pressure seat 401 is fitted between the two lifting guide grooves 302, and the anti-bending pressure seat 401 is located at the intersection of the annular guide groove 203 and the vertical guide groove 204. When the linkage screw 220 is rotated by the linkage motor 219, it drives the horizontal linkage frame 218 to move and insert into another lifting seat 205. At this time, the horizontal linkage frame 218 achieves the insertion and engagement with each roller mounting seat 402. Then, each electric telescopic rod 217 is activated to drive the lifting seats 205 on both sides to move up to the set position synchronously. The horizontal linkage frame 218 pushes the anti-bending pressure seat 401 up until the roller mounting seat 402 passes through the anti-bending passage 505. In this way, the two anti-bending pressure rollers 403 are lifted to the set position. During this process, the two upward-moving anti-bending pressure rollers 403 lift the concrete edge stone placed on the upper loading seat 502 to the set position. At this time, the concrete edge stone is lifted by the anti-bending pressure rollers 403 on both sides. The system provides support, and then the hydraulic cylinder 209 controls the pressure lifting seat 201 to gradually descend to begin the flexural strength test. The flexural strength test is achieved by the pressure exerted by the flexural pressure component 213, which descends synchronously with the pressure lifting seat 201, against the concrete edge stone. A pressure sensor is installed on the hydraulic pipeline connected to the hydraulic cylinder 209 to indirectly measure the output pressure of the hydraulic cylinder 209. This completes the flexural strength test of the concrete edge stone at this location. After the flexural strength test is completed, the hydraulic cylinder 209 controls the pressure lifting seat 201 to move upward and reset. Then, the electric telescopic rods 217 control the lifting seats 205 on both sides to move downward and reset, allowing the concrete edge stone that has completed the flexural strength test to fall back onto the upper loading seat 502. Then, the linkage motor 219 controls the linkage screw 220 to rotate in the opposite direction, causing the horizontal linkage frame 218 to disengage from the roller mounting seat 402 and the other lifting seat 205.

[0036] Next, the first conversion motor 211 drives the conversion screw 210 to rotate, causing the pressure-applying component 215 to move to a position directly below the hydraulic cylinder 209. Then, the second conversion motor 303 controls the conversion power shaft 304 to rotate 180°, which in turn drives the two conversion power discs 301 to rotate synchronously by 180°. Under the action of the conversion power discs 301, the anti-bending pressure seat 401 is pushed into the annular guide groove 203, while the pressure-applying pressure seat 404... Slide along the annular guide groove 203 to the intersection of the annular guide groove 203 and the vertical guide groove 204, where the pressure-bearing component 407 is positioned upwards. Then, drive the horizontal linkage frame 218 to move and insert it onto another lifting seat 205 and the positioning seat 405. Activate the electric telescopic rods 217 again to move the lifting seats 205 on both sides synchronously upwards to the set position. The horizontal linkage frame 218 pushes the pressure-bearing seat 404 upwards until the pressure-bearing component 407 passes through the pressure-bearing passage 504. The bottom of the concrete edge stone is supported by the pressure-bearing component 407. Then, the hydraulic cylinder 209 controls the pressure-applying lifting seat 201 to gradually descend and begin the compressive strength test. The compressive strength test is achieved by the pressure-applying component 215, which descends synchronously with the pressure-applying lifting seat 201, pressing against the concrete edge stone. A pressure sensor is installed on the hydraulic pipeline connected to the hydraulic cylinder 209. The output pressure of the hydraulic cylinder 209 is indirectly measured by the pressure sensor, thus completing the compressive strength test of the concrete edge stone at this position. After the compressive strength test is completed, the hydraulic cylinder 209 controls the pressure-applying lifting seat 201 to move upward and reset. Then, the electric telescopic rods 217 control the lifting seats 205 on both sides to move downward and reset, so that the concrete edge stone that has completed the compressive strength test falls back onto the upper loading seat 502. Then, the linkage motor 219 controls the linkage screw 220 to rotate in the opposite direction, so that the horizontal linkage frame 218 disengages from the roller mounting seat 402 and the other lifting seat 205.

[0037] When the first conversion motor 211 is restarted to drive the conversion screw 210 to rotate, the anti-bending pressure member 213 moves to the position directly below the hydraulic cylinder 209 (i.e., the anti-bending pressure member 213 returns to its initial position). Then, the second conversion motor 303 controls the conversion power shaft 304 to rotate 180° again. The rotation of the conversion power shaft 304 drives the two conversion power discs 301 to rotate 180° synchronously. Under the action of the conversion power discs 301, the anti-pressure bearing seat 404 is pushed into the annular guide groove 203, and the anti-bending pressure seat 401 slides along the annular guide groove 203 to the intersection of the annular guide groove 203 and the vertical guide groove 204. At this time, the anti-bending pressure roller 40... 3. The roller is then positioned upwards again (i.e., the flexural bearing roller 403 returns to its initial position). When the walking motor 222 is started to control the walking gear 223 to rotate, the walking gear 223 rolls along the walking gear seat, moving the entire test mechanism 1 to the next position (which corresponds to a concrete edge stone). Subsequently, the flexural strength and compressive strength of the concrete edge stone are tested again using the same control method as described above. Compared with the traditional test method that requires removing the edge stone and repositioning it after each test, the edge stone test method in this application does not require frequent loading and unloading operations during the test, which greatly liberates labor and improves the testing efficiency of the edge stone.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] 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 testing device for the flexural strength of concrete curb stones, characterized in that, Includes a testing mechanism (1); wherein the testing mechanism (1) includes: The bearing assembly (2) includes a pressure lifting seat (201), on which a bending pressure part and a compressive pressure part are horizontally slidably arranged. Two vertical support plates (202) are symmetrically arranged below the pressure lifting seat (201). The surface of the vertical support plate (202) is provided with an annular guide groove (203) and a vertical guide groove (204) that are interconnected. A power conversion assembly (3) is installed between two vertical support plates (202). The power conversion assembly (3) includes a power conversion disk (301), and two lifting guide grooves (302) are symmetrically opened on the surface of the power conversion disk (301). The pressure-bearing component (4) is disposed between two vertical support plates (202). The pressure-bearing component (4) includes a flexural pressure-bearing part and a compressive pressure-bearing part. The flexural pressure-bearing part is slidably fitted between two corresponding lifting guide grooves (302) and is slidably fitted with the annular guide grooves (203) on both sides of the flexural pressure-bearing part. The compressive pressure-bearing part is slidably fitted between two corresponding lifting guide grooves (302) and is slidably fitted with the annular guide grooves (203) on both sides of the compressive pressure-bearing part. Below the pressure lifting seat (201) is a lifting seat (205), which is used to push the anti-bending pressure part or the anti-compression pressure part from the annular guide groove (203) into the vertical guide groove (204).

2. The testing device for the flexural strength of concrete curb stones according to claim 1, characterized in that, The bearing assembly (2) also includes a bearing frame (206), and the bearing frame (206) has guide channels (207) on both sides. The pressure lifting seat (201) is slidably disposed between the two guide channels (207). The top of the bearing frame (206) is fixed with a mounting frame (208). The output end of the hydraulic cylinder (209) installed inside the mounting frame (208) is connected to the pressure lifting seat (201). The pressure lifting seat (201) is rotatably disposed inside a conversion screw (210). The output end of the first conversion motor (211) installed on one side of the pressure lifting seat (201) is connected to the conversion screw (210).

3. The testing device for the flexural strength of concrete curb stones according to claim 2, characterized in that, The anti-bending pressure part consists of an anti-bending movable seat (212) and an anti-bending pressure component (213). The anti-bending movable seat (212) is slidably disposed inside the pressure lifting seat (201) and threadedly engaged with the conversion screw (210). The anti-bending pressure component (213) is fixedly installed at the bottom of the anti-bending movable seat (212). The pressure-resistant and pressure-applying part consists of a pressure-resistant movable seat (214) and a pressure-resistant and pressure-applying component (215). The pressure-resistant movable seat (214) is slidably disposed inside the pressure-applying lifting seat (201) and threadedly engaged with the conversion screw (210). The pressure-resistant and pressure-applying component (215) is fixedly installed at the bottom of the pressure-resistant movable seat (214).

4. The test device for flexural strength of concrete curb stones according to claim 3, characterized in that, The support frame (206) has a horizontal support platform (216) fixed inside. The vertical support plate (202) is symmetrically fixed on the top of the horizontal support platform (216). The lifting seat (205) is symmetrically arranged on both sides of the vertical support plate (202). The top of the horizontal support platform (216) is equipped with an electric telescopic rod (217) connected to the lifting seat (205). A horizontal linkage frame (218) is provided on one side of the support frame (206). The horizontal linkage frame (218) is horizontally slidably connected to the corresponding lifting seat (205). A linkage motor (219) is installed on the lifting seat (205) corresponding to the horizontal linkage frame (218). The output end of the linkage motor (219) is connected to a linkage screw (220). The horizontal linkage frame (218) is sleeved on the linkage screw (220) and the two are threaded together.

5. The testing device for the flexural strength of concrete curb stones according to claim 4, characterized in that, It also includes a curbstone loading mechanism (5); wherein the curbstone loading mechanism (5) includes a curbstone loading frame (501), an upper loading seat (502) and a lower guide seat (503) are fixed on the inner side of the curbstone loading frame (501), a number of pressure-resistant passages (504) and bending-resistant passages (505) are arranged in an array on the top of the upper loading seat (502), and a guide wheel groove (506) is opened on the top of the lower guide seat (503). The support frame (206) is slidably disposed between the upper loading seat (502) and the lower guide seat (503). The bottom of the support frame (206) is equipped with a support guide wheel (221) that rolls with the guide wheel groove (506). The output shaft of the walking motor (222) installed on the top of the support frame (206) is connected to a walking gear (223). The walking gear seat fixed inside the curbstone loading frame (501) meshes with the walking gear (223).

6. The testing device for the flexural strength of concrete curb stones according to claim 5, characterized in that, The conversion power assembly (3) further includes a second conversion motor (303), which is mounted on the corresponding vertical support plate (202). The output end of the second conversion motor (303) is connected to a conversion power shaft (304) that is rotatably connected to the two vertical support plates (202). The conversion power disk (301) is fixedly mounted on the conversion power shaft (304).

7. The testing device for the flexural strength of concrete curb stones according to claim 6, characterized in that, The anti-bending pressure part includes an anti-bending pressure seat (401) slidably disposed between two lifting guide grooves (302). Two roller mounting seats (402) are symmetrically fixedly installed on the anti-bending pressure seat (401). An anti-bending pressure roller (403) is detachably installed on the top of the roller mounting seat (402). The maximum width of the roller mounting seat (402) along the axial direction of the anti-bending pressure roller (403) is smaller than the anti-bending passage (505).

8. The test device for flexural strength of concrete curb stones according to claim 7, characterized in that, The pressure-bearing part includes a pressure-bearing seat (404) slidably disposed between two lifting guide grooves (302). Two positioning seats (405) are symmetrically fixedly installed on the pressure-bearing seat (404). The positioning seats (405) are adapted to the position of the roller mounting seat (402). The horizontal linkage frame (218) is disposed between the positioning seats (405) and the roller mounting seat (402). A pressure-bearing component mounting seat (406) is fixedly installed on the pressure-bearing seat (404). A pressure-bearing component (407) is detachably installed at the bottom of the pressure-bearing component mounting seat (406).

Images