A plate strength detection device for construction engineering

Abstract

The application discloses a kind of plate strength detection devices for construction engineering, it is related to the technical field of construction engineering, to solve the technical problems that current building board strength detection equipment is relatively single, cannot satisfy the compression strength detection and tensile strength detection of building board simultaneously, including test frame, the test frame, the test frame two sides inner wall symmetric structure fixedly connected with two first toothed plates, the test frame bottom inner wall is equipped with a plurality of accommodation grooves, and the test frame is internally provided with test mechanism;The test mechanism includes first support plate, output assembly and lifting assembly;The first support plate is internally provided in test frame.This application is equipped with test mechanism and output assembly, can drive first clamping plate and second clamping plate independent motion, form two kinds of use state of mechanical clamp and pressing plate, to further realize the compression strength detection and tensile strength detection of building board two functions, this application has two kinds of use state, wide adaptability, and low use cost.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and more specifically, to a strength testing device for building materials. Background Technology

[0002] In the field of construction engineering, various types of boards are widely used, such as concrete boards, metal boards, wood boards, and various new composite material boards. The strength performance of these boards is directly related to the safety, durability, and stability of building structures. The strength testing of building boards includes compressive strength testing, flexural strength testing, shear strength testing, and tensile strength testing. Among them, the loading direction of the compressive strength testing device is perpendicular to the surface of the board; the tensile strength testing device mainly applies axial tensile force to the board.

[0003] Currently, the equipment used for strength testing of building panels is relatively limited and cannot simultaneously meet the requirements for compressive strength and tensile strength testing, resulting in high costs. Therefore, we propose a strength testing device for building panels used in construction projects. Summary of the Invention

[0004] The purpose of this invention is to provide a board strength testing device for building engineering, so as to solve the problem that the existing board strength testing equipment is relatively simple and cannot simultaneously meet the technical requirements of compressive strength testing and tensile strength testing of building boards.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a plate strength testing device for building engineering, comprising a test frame, wherein two first toothed plates are fixedly connected to the inner walls on both sides of the test frame in a symmetrical structure, and a plurality of placement grooves are opened on the inner wall at the bottom of the test frame, and a test mechanism is movably installed inside the test frame; The testing mechanism includes a first support plate, an output component, and a lifting component; the first support plate is movably disposed inside the testing frame and is in contact with the bottom inner wall of the testing frame, and the lifting component is fixedly disposed at the top of the testing frame; The first support plate has a symmetrical structure on both sides, with a first gear movably connected to it via a first insert rod. The first gear meshes with a first gear plate. The test frame has two first motors slidably connected to it on one side, with the output ends of the first motors fixedly connected to the first gear via a first insert rod. The first support plate has a first clamping plate movably connected to both sides via a second insert rod. The bottom of the first support plate has several support plates fixedly connected to it in a linear array via first bolts, with the first clamping plates in movable contact with the support plates. A torsion spring is movably sleeved on the side surface of the second insert rod, and the torsion spring is fixedly connected to the first clamping plate. A filling frame is movably sleeved on the side surface of the second insert rod, and the filling frame is fixedly connected to the torsion spring. The filling frame is embedded inside the first clamping plate. A driving component is movably provided at the bottom of several of the support plates. By setting up a test mechanism and an output component, this invention can drive the first clamping plate and the second clamping plate to move independently, forming two usage states: mechanical clamp and pressure plate. This enables the testing of both compressive strength and tensile strength of building materials. This invention has two usage states, wide adaptability, and low cost.

[0006] Preferably, the drive assembly includes a second motor, which is fixedly connected to the bottom of the first support plate. A first transmission rod is fixedly connected to the output end of the second motor. Gear rollers are fixedly sleeved on the side surface of the first transmission rod in a linear array, and the gear rollers are movably disposed between two adjacent support plates. The bottoms of several support plates are symmetrically connected to two second transmission rods via a first bracket, and the two second transmission rods are symmetrically arranged via the first transmission rod. One of the second transmission rods has a drive gear fixedly sleeved on its side surface in a linear array, and the gear roller meshes with the drive gear. The other second transmission rod has drive rollers fixedly sleeved on its side surface in a linear array. The drive rollers and gear rollers are movably connected via a first transmission belt. Transmission plates are fixedly sleeved at both ends of the drive rollers and drive gears. Several pulleys are movably connected to the inner walls of both sides of each transmission plate via a first pin in a linear array, and the first pins pass through the transmission plates. Several sliding grooves are opened in a linear array at the bottoms of the two first clamping plates, and the pulleys are in movable contact with the inner walls of the sliding grooves. The first pins are movably connected inside the sliding grooves.

[0007] Preferably, the drive roller and the drive gear are fixedly connected in a ring array to several insert plates at both ends, and the inner wall of the transmission plate is provided with several slots in a ring array, with the insert plates inserted into the slots.

[0008] Preferably, the output component includes a second support plate, which is movably disposed inside the test frame. The two sides of the second support plate are symmetrically connected with second gears, and the second gears are meshed with a first gear plate. The bottom of the second support plate is movably connected with a transmission cylinder through a first bearing. The second support plate is symmetrically connected with two support columns.

[0009] Preferably, adjusting plates are movably sleeved on the side surfaces of the two support columns, and two second clamping plates are movably connected to both sides of the two adjusting plates through connecting pieces. The top of the adjusting plates and the second clamping plates are symmetrically connected to four hinged frames. Four auxiliary frames are fixedly connected to the bottom of the second support plate, and each hinged frame is movably connected to the inner walls on both sides of the auxiliary frame through a second pin. An adjustment unit is fixedly provided on the top of the transmission cylinder.

[0010] Preferably, the top of the transmission cylinder is movably connected with a number of balls in a ring array, and the balls are movably connected to the bottom of the second support plate. The side surface of the transmission cylinder is provided with two movable grooves in a ring array. The two adjusting plates are respectively fixedly connected to protruding rods on opposite sides, and the protruding rods are slidably connected inside the movable grooves.

[0011] Preferably, the adjustment unit includes an arc-shaped toothed plate, which is fixedly connected to the top of the transmission cylinder. An arc-shaped groove is provided on the top of the transmission cylinder. A sector gear is movably sleeved on the side surface of the second support plate, and the sector gear meshes with the arc-shaped toothed plate. A handle is fixedly connected to the side surface of the sector gear.

[0012] Preferably, a limiting rod is movably sleeved on the support plate of the arc-shaped toothed plate, and the bottom of the limiting rod is movably connected inside the arc-shaped groove. A first spring is movably sleeved on the side surface of the limiting rod, and the two ends of the first spring are fixedly connected to the limiting rod and the support plate, respectively.

[0013] Preferably, the lifting assembly includes two mounting brackets, which are symmetrically connected to the top of the test frame by a second bolt. The top of the second support plate is symmetrically connected to two lead screws, which pass through the mounting brackets. The tops of the two mounting brackets are movably connected to threaded rollers by a second bearing, and the threaded rollers are movably connected to the side surface of the lead screws by a first thread.

[0014] Preferably, a third motor is fixedly connected to the top of the test frame, and a transmission roller is fixedly connected to the output end of the third motor. The transmission roller and the threaded roller are movably connected through a second transmission belt.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a test mechanism and output components, the present invention can drive the first clamping plate and the second clamping plate to move independently, forming two usage states: mechanical clamp and pressure plate. This enables the invention to perform two functions: compressive strength testing and tensile strength testing of building materials. The present invention has two usage states, wide adaptability, and low cost of use.

[0016] 2. By setting up a filling frame, the present invention reduces the space in the slots on the first support plate and the first clamping plate, thus avoiding the impact of the gaps on the compressive strength test of the building materials during the test. Furthermore, the filling frame is always embedded in the slots on the first support plate and the first clamping plate by applying force through the torsion spring, which helps to improve the accuracy of the test results of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of a three-dimensional partial structure of the testing mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the diagram; Figure 5 This is a schematic diagram of a partial three-dimensional structure of the output component of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B in the diagram; Figure 7 This is a three-dimensional enlarged structural diagram of the lifting component of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram of a three-dimensional partial structure of the drive component of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D; Figure 11 For the present invention Figure 9 Enlarged structural diagram at point E in the diagram; Figure 12 This is a partially enlarged three-dimensional structural diagram of the output component of the present invention; Figure 13 For the present invention Figure 12 A magnified structural diagram at point F in the diagram.

[0018] Explanation of the numbers in the diagram: 1. Test frame; 101. First toothed plate; 102. Mounting slot; 2. Test mechanism; 201. First support plate; 202. First gear; 203. First motor; 204. First clamping plate; 205. Support plate; 206. Torsion spring; 207. Filling frame; 3. Output assembly; 301. Second support plate; 302. Second gear; 303. Transmission cylinder; 303a. Ball bearing; 303b. Movable groove; 304. Support column; 305. Adjusting plate; 305a. Protruding rod; 306. Connecting piece; 307. Second clamping plate; 308. Hinge frame; 308a. Telescopic rod; 309. Auxiliary frame; 4. Lifting assembly; 401. Mounting bracket; 402. Lead screw; 403. Threaded roller; 404. Third motor; 405. Transmission roller; 406. Second transmission belt; 5. Drive assembly; 501. Second motor; 502. First transmission rod; 503. Gear roller; 504. Second transmission rod; 505. Drive gear; 506. Drive roller; 506a. Insert plate; 507. First transmission belt; 508. Transmission plate; 508a. Slot; 509. Pulley; 510. Slide groove; 6. Adjustment unit; 601. Arc-shaped toothed plate; 602. Arc-shaped groove; 603. Sector gear; 603a. Handle; 604. Limiting rod; 605. First spring. Detailed Implementation

[0019] like Figure 3 and Figure 4 As shown, the present invention relates to a plate strength testing device for building engineering, comprising a test frame 1, two first toothed plates 101 fixedly connected to the inner walls of both sides of the test frame 1 in a symmetrical structure, a plurality of mounting grooves 102 opened on the inner wall of the bottom of the test frame 1, and a test mechanism 2 movably installed inside the test frame 1; The test mechanism 2 includes a first support plate 201, an output component 3, and a lifting component 4; the first support plate 201 is movably installed inside the test frame 1 and is in contact with the bottom inner wall of the test frame 1; the lifting component 4 is fixedly installed on the top of the test frame 1. The first support plate 201 has a symmetrical structure on both sides, and a first gear 202 is movably connected to it via a first insert rod. The first gear 202 meshes with the first toothed plate 101. Two first motors 203 are slidably connected to one side of the test frame 1 in a symmetrical structure. The output end of the first motor 203 is fixedly connected to the first gear 202 via a first insert rod. The first support plate 201 has a first clamping plate 204 movably connected to both sides via a second insert rod. Several support plates 205 are linearly arrayed at the bottom of the first support plate 201 and fixedly connected to it via first bolts. The first clamping plate 204 is in movable contact with the support plate 205. A torsion spring 206 is movably sleeved on the side surface of the second insert rod, and the torsion spring 206 is in contact with the first clamping plate 204. A fixed connection is made, and a filling frame 207 is movably sleeved on the side surface of the second insert rod. The filling frame 207 is fixedly connected to the torsion spring 206. The filling frame 207 is embedded inside the first clamping plate 204. It is worth noting that by setting the filling frame 207, the slot space on the first support plate 201 and the first clamping plate 204 is reduced, so as to avoid the gap on the first support plate 201 and the first clamping plate 204 affecting the compressive strength test of the building board. Moreover, the torsion spring 206 applies a force to the filling frame 207, so that the filling frame 207 is always embedded in the slot on the first support plate 201 and the first clamping plate 204. A drive assembly 5 is provided at the bottom of several support plates 205.

[0020] In embodiments of the present invention, such as Figure 9 , Figure 10 and Figure 11As shown, the drive assembly 5 includes a second motor 501, which is fixedly connected to the bottom of the first support plate 201. A first transmission rod 502 is fixedly connected to the output end of the second motor 501. Gear rollers 503 are fixedly sleeved on the side surface of the first transmission rod 502 in a linear array, and the gear rollers 503 are movably disposed between two adjacent support plates 205. Several support plates 205 have a symmetrical bottom structure, through which two second transmission rods 504 are movably connected via a first bracket. The two second transmission rods 504 are symmetrically arranged through the first transmission rod 502. One of the second transmission rods 504... Four drive gears 505 are fixedly sleeved on the four sides in a linear array, and gear rollers 503 are meshed with drive gears 505. Another second transmission rod 504 has drive rollers 506 fixedly sleeved on its side surface in a linear array. Drive rollers 506 and gear rollers 503 are movably connected via a first transmission belt 507. Transmission plates 508 are fixedly sleeved at both ends of drive rollers 506 and drive gears 505. Several pulleys 509 are movably connected in a linear array on the inner walls of both sides of each transmission plate 508 via first pins, with the first pins passing through the transmission plate 508. Two... A clamping plate 204 has several grooves 510 arranged in a linear array at its bottom, and a pulley 509 is in active contact with the inner wall of the groove 510. A first pin is movably connected inside the groove 510. By setting a test mechanism 2 and an output component 3, the present invention can drive the first clamping plate 204 and the second clamping plate 307 to move independently, forming two usage states: mechanical clamp and pressure plate. This enables the invention to perform two functions: compressive strength testing and tensile strength testing of building materials. The present invention has two usage states, wide adaptability, and low cost. When testing the compressive strength of building materials, the first step is to use an external... The circuit mechanism enables the first motor 203 to work, which drives the first gear 202 to rotate. Through gear meshing, the first support plate 201 is made to fit against the inner wall of the bottom of the test frame 1, and the bottom parts of the first support plate 201 fit into the mounting groove 102. The second motor 501 works to drive the first transmission rod 502 to rotate. Through gear meshing and the first transmission belt 507, the transmission plate 508 makes a circular motion and slides in the slide groove 510 through the pulley 509 until the first clamping plate 204 and the first support plate 201 are on the same horizontal plane.

[0021] In embodiments of the present invention, such as Figure 11 As shown, the drive roller 506 and the drive gear 505 are fixedly connected in a ring array at both ends with several insert plates 506a. The inner wall of the transmission plate 508 is provided with several slots 508a in a ring array, and the insert plates 506a are inserted into the slots 508a.

[0022] As another embodiment of the present invention, such as Figure 5 , Figure 6 , Figure 12 and Figure 13As shown, the output component 3 includes a second support plate 301, which is movably installed inside the test frame 1. The second support plate 301 has two symmetrically connected second gears 302 on both sides, and the second gears 302 mesh with the first gear plate 101. A transmission cylinder 303 is movably connected to the bottom of the second support plate 301 via a first bearing. Two support columns 304 are fixedly connected to the second support plate 301 in a symmetrical structure. Adjusting plates 305 are movably sleeved on the side surfaces of the two support columns 304. Two second clamping plates 307 are movably connected to both sides of the two adjusting plates 305 via connecting pieces 306. Four hinged frames 308 are symmetrically connected to the tops of the adjusting plates 305 and the second clamping plates 307. Four auxiliary frames 309 are fixedly connected to the bottom of the second support plate 301, and each hinged frame 308 is movably connected to the inner walls of both sides of the auxiliary frame 309 via a second pin. An adjustment unit 6 is fixedly installed on the top of the transmission cylinder 303.

[0023] As another embodiment of the present invention, such as Figure 6 , Figure 8 and Figure 13 As shown, the top of the transmission cylinder 303 is movably connected with a number of balls 303a in a ring array, and the balls 303a are movably connected to the bottom of the second support plate 301. The side surface of the transmission cylinder 303 is provided with two movable grooves 303b in a ring array. The two adjusting plates 305 are respectively fixedly connected to the opposite side with protruding rods 305a, and the protruding rods 305a are slidably connected inside the movable grooves 303b. Each of the hinge frames 308 is provided with a telescopic rod 308a near the end of the adjusting plate 305.

[0024] As another embodiment of the present invention, such as Figure 6 and Figure 8 As shown, the adjustment unit 6 includes an arc-shaped toothed plate 601, which is fixedly connected to the top of the transmission cylinder 303. An arc-shaped groove 602 is provided on the top of the transmission cylinder 303. A sector gear 603 is movably sleeved on the side surface of the second support plate 301, and the sector gear 603 meshes with the arc-shaped toothed plate 601. A handle 603a is fixedly connected to the side surface of the sector gear 603. A limiting rod 604 is movably sleeved on the upper support plate of the arc-shaped toothed plate 601, and the bottom of the limiting rod 604 is movably connected inside the arc-shaped groove 602. A first spring 6 is movably sleeved on the side surface of the limiting rod 604. 05, and the two ends of the first spring 605 are fixedly connected to the limiting rod 604 and the support plate respectively. After adjustment, the sector gear 603 is rotated by the handle 603a. The sector gear 603 meshes with the arc-shaped toothed plate 601 to drive the transmission cylinder 303. At the same time, the adjusting plate 305 moves by moving in the movable groove 303b through the protruding rod 305a, and is limited by the support column 304. During the movement of the adjusting plate 305, the two second clamping plates 307 and the second support plate 301 are on the same horizontal plane through the hinge frame 308. Figure 1As shown, the building panels are then placed on top of the first support plate 201 and the first clamping plate 204.

[0025] As another embodiment of the present invention, such as Figure 7 As shown, the lifting assembly 4 includes two mounting brackets 401, which are symmetrically connected to the top of the test frame 1 by second bolts. Two lead screws 402 are symmetrically connected to the top of the second support plate 301, and the lead screws 402 pass through the mounting brackets 401. Threaded rollers 403 are movably connected to the top of the two mounting brackets 401 via second bearings, and the threaded rollers 403 are movably connected to the side surface of the lead screws 402 via first threads. A third motor 404 is fixedly connected to the top of the test frame 1, and a transmission roller 405 is fixedly connected to the output end of the third motor 404. 5. The threaded roller 403 is movably connected to the threaded roller 403 via the second transmission belt 406, and the third motor 404 is activated by an external circuit mechanism. The third motor 404 drives the transmission roller 405 to rotate, and through the second transmission belt 406, the two threaded rollers 403 rotate synchronously. Since the threaded roller 403 is threadedly matched with the lead screw 402, it applies a force to the second support plate 301. The second gear 302 meshes with the first toothed plate 101, allowing the second support plate 301 to move stably downward within the test frame 1 and apply a force to the building material, thereby realizing the construction... In the compressive strength test of building materials, when testing the tensile strength of building materials, an external circuit mechanism is first used to drive the first transmission rod 502 to rotate via the second motor 501. Through gear meshing and the first transmission belt 507, the transmission plate 508 makes circular motion, applying force to the first clamping plate 204. This causes the two first clamping plates 204 to make circular motion via the insert rod, clamping the building material. The first motor 203 drives the first gear 202, causing the first support plate 201 to move upward within the test frame 1. Then, the handle 603a drives the sector gear 603 to rotate, and the arc-shaped gear... The meshing transmission of plate 601 causes the transmission cylinder 303 to rotate. The adjusting plate 305 moves within the movable groove 303b via the convex rod 305a. The adjusting plate 305 moves upward via the support column 304. The second clamping plate 307 performs a circular motion via the hinge frame 308 to clamp the building material. Finally, the external circuit mechanism drives the third motor 404 to drive the transmission roller 405. The second transmission belt 406 drives the two threaded rollers 403. Through the threaded adaptation, the second support plate 301 moves upward, applying force to the building material and realizing the tensile strength testing function of the building material.

[0026] Working Principle: This embodiment provides a board strength testing device for building engineering. When testing the compressive strength of board materials for building engineering, the first motor 203 is activated by an external circuit mechanism. The first motor 203 drives the first gear 202 to rotate. Through gear meshing, the first support plate 201 is brought into contact with the inner wall of the bottom of the test frame 1, and the bottom components of the first support plate 201 are aligned with the mounting groove 102. The second motor 501 drives the first transmission rod 502 to rotate. Through gear meshing and the first transmission belt 507, the transmission plate 508 performs a circular motion. The first clamping plate 204 and the first support plate 201 slide within the slide groove 510 via pulley 509 until they are on the same horizontal plane. After adjustment, the sector gear 603 is rotated via handle 603a. The sector gear 603 meshes with the arc-shaped toothed plate 601, causing the transmission cylinder 303 to rotate. Simultaneously, the adjusting plate 305 moves within the movable groove 303b via the protruding rod 305a and is limited by the support column 304. During the movement of the adjusting plate 305, the two second clamping plates 307 and the second support plate 301 are brought to the same horizontal plane via the hinge frame 308. Figure 1As shown, the building material is then placed on top of the first support plate 201 and the first clamping plate 204. An external circuit mechanism activates the third motor 404, which drives the transmission roller 405 to rotate. Through the second transmission belt 406, the two threaded rollers 403 rotate synchronously. Since the threaded rollers 403 are threadedly matched with the lead screw 402, they apply force to the second support plate 301. The second gear 302 meshes with the first toothed plate 101, allowing the second support plate 301 to move stably downwards within the test frame 1, applying force to the building material and thus achieving the compressive strength test of the building material. When testing the tensile strength of the building material, the external circuit mechanism first drives the second motor 501 to rotate the first transmission rod 502. Through gear meshing and the first transmission belt 507, the transmission plate 508 performs a circular motion, applying force to the first clamping plate 204. A force is applied, causing the two first clamping plates 204 to move in a circular motion via the insert rod, clamping the building material. The first motor 203 drives the first gear 202, causing the first support plate 201 to move upward within the test frame 1. Then, the handle 603a drives the sector gear 603 to rotate, meshing with the arc-shaped toothed plate 601, causing the transmission cylinder 303 to rotate. The adjusting plate 305 moves within the movable groove 303b via the protrusion rod 305a, and moves upward via the support column 304. The hinge frame 308 causes the second clamping plate 307 to move in a circular motion, clamping the building material. Finally, the external circuit mechanism drives the third motor 404 to drive the transmission roller 405, which in turn drives the two threaded rollers 403 via the second transmission belt 406. Through threaded adaptation, the second support plate 301 moves upward, applying force to the building material and realizing the tensile strength testing function of the building material.

[0027] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A strength testing device for building materials used in construction engineering, characterized in that... The test frame (1) includes a test frame (1), wherein two first toothed plates (101) are fixedly connected to the inner walls of the two sides of the test frame (1) in a symmetrical structure, and several placement grooves (102) are opened on the inner wall of the bottom of the test frame (1). The test frame (1) is equipped with a test mechanism (2) inside. The test mechanism (2) includes a first support plate (201), an output component (3), and a lifting component (4); the first support plate (201) is movably installed inside the test frame (1), and the first support plate (201) is in contact with the bottom inner wall of the test frame (1); the lifting component (4) is fixedly installed on the top of the test frame (1). The first support plate (201) has a symmetrical structure on both sides, with a first gear (202) movably connected to it via a first insert rod. The first gear (202) meshes with the first toothed plate (101). The test frame (1) has a symmetrical structure on one side, with two first motors (203) slidably connected. The output end of the first motor (203) is fixedly connected to the first gear (202) via a first insert rod. The first support plate (201) has a first clamping plate (204) movably connected to both sides via a second insert rod. The bottom of the first support plate (201) is in a linear array. A plurality of support plates (205) are fixedly connected by a first bolt, and a first clamping plate (204) is in movable contact with the support plate (205). A torsion spring (206) is movably sleeved on the side surface of the second insertion rod, and the torsion spring (206) is fixedly connected to the first clamping plate (204). A filling frame (207) is movably sleeved on the side surface of the second insertion rod, and the filling frame (207) is fixedly connected to the torsion spring (206). The filling frame (207) is embedded inside the first clamping plate (204). A driving assembly (5) is movably provided at the bottom of the plurality of support plates (205).

2. The strength testing device for building materials used in construction engineering according to claim 1, characterized in that... The drive assembly (5) includes a second motor (501), which is fixedly connected to the bottom of the first support plate (201). The output end of the second motor (501) is fixedly connected to a first transmission rod (502). A gear roller (503) is fixedly sleeved on the side surface of the first transmission rod (502) in a linear array. The gear roller (503) is movably disposed between two adjacent support plates (205). The bottoms of several support plates (205) are symmetrically connected to two second transmission rods (504) through a first bracket. The two second transmission rods (504) are symmetrically arranged through the first transmission rod (502). One of the second transmission rods (504) has a drive gear (505) fixedly sleeved on the side surface of its side in a linear array. The gear roller (503) and the gear roller (503) are fixedly sleeved on its side surface in a linear array. The drive gear (505) is meshed and connected. The side surface of the other second transmission rod (504) is linearly arrayed with drive rollers (506). The drive rollers (506) and gear rollers (503) are movably connected through the first transmission belt (507). The two ends of the drive rollers (506) and drive gears (505) are respectively fixedly sleeved with transmission plates (508). The inner walls on both sides of each transmission plate (508) are movably connected with several pulleys (509) in a linear array through the first pin. The first pin passes through the transmission plate (508). The bottom of the two first clamping plates (204) is provided with several sliding grooves (510) in a linear array. The pulleys (509) are in movable contact with the inner wall of the sliding groove (510). The first pin is movably connected inside the sliding groove (510).

3. The strength testing device for building materials used in construction engineering according to claim 2, characterized in that... The drive roller (506) and the drive gear (505) are fixedly connected in a ring array to several insert plates (506a) at both ends. The inner wall of the transmission plate (508) is provided with several slots (508a) in a ring array, and the insert plates (506a) are inserted into the slots (508a).

4. The strength testing device for building materials used in construction engineering according to claim 3, characterized in that... The output component (3) includes a second support plate (301), which is movably installed inside the test frame (1). The second support plate (301) is symmetrically connected to two second gears (302) on both sides, and the second gears (302) mesh with the first gear plate (101). The bottom of the second support plate (301) is movably connected to a transmission cylinder (303) through a first bearing. The second support plate (301) is symmetrically connected to two support columns (304).

5. A strength testing device for building materials according to claim 4, characterized in that... Two adjustment plates (305) are movably sleeved on the side surfaces of the two support columns (304). The two adjustment plates (305) are movably connected to two second clamping plates (307) on both sides through connecting pieces (306). The tops of the adjustment plates (305) and the second clamping plates (307) are symmetrically connected to four hinged frames (308). The bottom of the second support plate (301) is fixedly connected to four auxiliary frames (309), and each hinged frame (308) is movably connected to the inner walls on both sides of the auxiliary frame (309) through a second pin. An adjustment unit (6) is fixedly provided on the top of the transmission cylinder (303).

6. The strength testing device for building materials used in construction engineering according to claim 5, characterized in that... The top of the transmission cylinder (303) is movably connected with a number of balls (303a) in a ring array, and the balls (303a) are movably connected to the bottom of the second support plate (301). The side surface of the transmission cylinder (303) is provided with two movable grooves (303b) in a ring array. The two adjusting plates (305) are respectively fixedly connected with protruding rods (305a) on opposite sides, and the protruding rods (305a) are slidably connected inside the movable grooves (303b). Each hinge frame (308) is provided with a telescopic rod (308a) near the end of the adjusting plate (305).

7. A strength testing device for building materials according to claim 6, characterized in that... The adjustment unit (6) includes an arc-shaped toothed plate (601), which is fixedly connected to the top of the transmission cylinder (303). An arc-shaped groove (602) is provided on the top of the transmission cylinder (303). A sector gear (603) is movably sleeved on the side surface of the second support plate (301), and the sector gear (603) meshes with the arc-shaped toothed plate (601). A handle (603a) is fixedly connected to the side surface of the sector gear (603).

8. A strength testing device for building materials according to claim 7, characterized in that... The upper support plate of the arc-shaped toothed plate (601) is movably sleeved with a limiting rod (604), and the bottom of the limiting rod (604) is movably connected inside the arc-shaped groove (602). The side surface of the limiting rod (604) is movably sleeved with a first spring (605), and the two ends of the first spring (605) are fixedly connected to the limiting rod (604) and the support plate, respectively.

9. A strength testing device for building materials according to claim 8, characterized in that... The lifting assembly (4) includes two mounting brackets (401). The two mounting brackets (401) are symmetrically connected to the top of the test frame (1) by a second bolt. The top of the second support plate (301) is symmetrically connected to two lead screws (402), and the lead screws (402) pass through the mounting brackets (401). The top of the two mounting brackets (401) is movably connected to a threaded roller (403) by a second bearing, and the threaded roller (403) is movably connected to the side surface of the lead screw (402) by a first thread.

10. A strength testing device for building materials according to claim 9, characterized in that... The test frame (1) is fixedly connected to a third motor (404) at the top. The output end of the third motor (404) is fixedly connected to a transmission roller (405). The transmission roller (405) and the threaded roller (403) are movably connected through a second transmission belt (406).

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