CN117091948A - Assembled building wallboard strength detection equipment - Google Patents

Abstract

The present invention relates to the technical field of strength detection of prefabricated building wall panels. Specifically, it is a strength detection equipment of prefabricated building wall panels, which includes a fixing unit and a detection unit. The present invention uses the fixing unit to detect the size, shape, flatness of corners, etc. The reinforced concrete wall panel that meets the test standards is fixed, and the detection unit applies pressure to the middle part of the reinforced concrete wall panel. At the same time, the bending deformation of the reinforced concrete wall panel is indicated by the detection unit on the unfolded paper roll with an ink pen, and the scale is used to indicate the bending deformation of the reinforced concrete wall panel. The bending strength is measured with a ruler, and then the bending strength is calculated using a formula based on the bending height and the middle pressure test force combined with the reinforced concrete wall panel's own data. During the entire process, no high-cost precision instruments are used to reduce the Purpose of Cost of Bend Testing of Reinforced Concrete Wall Panels in Small Plants.

Description

A kind of prefabricated building wall panel strength testing equipment

Technical field

The invention relates to the technical field of strength detection of prefabricated building wall panels, and is specifically a strength detection equipment of prefabricated building wall panels.

Background technique

Prefabricated building wall panels refer to wall panels that are processed in factories and used for construction. The types of prefabricated building wall panels include concrete wall panels, prefabricated wall panels, reinforced concrete wall panels, brick walls and lightweight partition panels. As well as wooden wall panels, the most widely used one at present is reinforced concrete wall panels. Here, only the strength testing of reinforced concrete wall panels is carried out. The strength testing methods include: tensile test, compression test, shear force test and bending test.

The bending test of reinforced concrete wall panels is to fix the reinforced concrete wall panel samples that meet the test standards in terms of size, shape, and corner flatness between two fulcrums, and then apply a load at the center, and test the wall panel during the bending process. The relationship between stress and strain in the wall panel can be used to calculate the flexural strength, elastic modulus and other parameters of the wall panel. Large factories generally use precision instruments to measure, and the testing cost is high. In order to reduce their testing costs, small factories generally only use simple bending tests. Just carry out the test. The main method is to use a known hydraulic force to apply pressure to the middle part of the reinforced concrete wall panel, and then use the formula to calculate the resistance based on the bending height and the middle pressure test force combined with the data of the reinforced concrete wall panel itself. Bending strength, during this simple measurement process, after the reinforced concrete wall panel is bent under force, its bending height is difficult to measure quickly, which affects the smooth progress of this simple bending test.

Contents of the invention

In view of the above problems, embodiments of the present application provide a prefabricated building wall panel strength testing device to solve the problem of the high cost of performing simple bending tests on reinforced concrete wall panels in small and medium-sized factories in related technologies and the difficulty in quickly increasing the bending height of reinforced concrete wall panels. Measured technical issues. In order to achieve the above objects, embodiments of the present application provide the following technical solutions.

The first aspect of the embodiment of the present application provides a prefabricated building wall panel strength testing equipment, which includes a fixing unit and a detection unit. The detection unit is located at the upper end of the fixing unit and is used to perform a simple bending test on reinforced concrete wall panels; The fixed unit includes a workbench. A two-way screw is rotatably connected in the middle of the workbench. A motor is fixedly installed on the right end of the workbench through a motor base. The output shaft of the motor is fixedly connected to the two-way screw through a coupling. The two-way screw is symmetrically connected to the left and right in a threaded manner. It is connected with a wall panel fixing frame for positioning and clamping the wall panel reinforced concrete wall panel; the detection unit includes a fixed bracket, a fixed bracket is fixedly installed at the front end of the workbench, a force-applying cylinder is fixedly installed at the lower end of the fixed bracket, and the force-applying cylinder telescopically A force-applying piece for extruding the reinforced concrete wall panel is fixedly installed at the end, a cleaning rack is fixedly installed at the front end of the fixed bracket, a pressure indicator is fixedly installed on the force-applying cylinder, and an electric telescopic rod is fixedly installed at the upper end of the workbench. A support plate is fixedly installed at the telescopic end of the telescopic rod. A distance-measuring piece is placed on the upper end of the support plate. A display frame is provided on the upper end of the workbench. Through the cooperation of the display frame and the distance-measuring piece, the bending degree of the reinforced concrete wall panel can be easily judged.

According to an embodiment of the present invention, the wall panel fixing frame includes a rectangular combination plate. The two-way screw rods are symmetrically connected to the rectangular combination plate in a threaded manner. The opposite ends of the rectangular combination plate are provided with fixing grooves, and the middle part of the fixing groove is rotationally connected with a rectangular combination plate. The distance control screw has an extrusion block connected with a threaded connection on the lower side of the distance control screw. The lower end of the extrusion block and the inner wall of the fixed groove are both fixed with rubber plates. The extrusion block and the fixed groove are connected by sliding fit. .

According to an embodiment of the present invention, the force-applying member includes an E-shaped frame. The E-shaped frame is fixedly installed at the telescopic end of the force-applying cylinder. A metal column is fixedly installed at the lower end of the E-shaped frame. The cross-section of the metal column is a semicircular structure.

According to an embodiment of the present invention, the cleaning rack includes a rectangular frame plate. The front end of the fixed bracket is fixedly installed with the rectangular frame plate. The inner end of the rectangular frame plate is connected with a cleaning brush in a sliding fit. The bristles of the cleaning brush are made of metal. The rectangular frame plate is An electric slide rail is fixedly installed on the right side of the lower end of the frame plate, and the moving end of the electric slide rail is fixedly connected to the cleaning brush.

According to an embodiment of the present invention, the upper surface of the support plate is smooth, positioning strips are fixedly installed around the support plate, and magnet blocks are fixedly installed symmetrically on the upper end of the support plate.

According to an embodiment of the present invention, the distance measuring member includes a fixed plate. A fixed plate is placed on the upper end of the support plate. The fixed plate is composed of multiple strip plates arranged from left to right and connected by rotation through pins. The fixed plate has a magnetic attraction sex, a rubber suction cup is fixedly installed on the upper end of the fixed plate, an ink pen is evenly installed on the lower end of the middle part of the fixed plate, the ink pens point to the left and right sides respectively, an air pump is fixed on the front end of the fixed plate, the suction cups on the rubber suction cup are connected to each other, and the rubber suction cup There is a communication pipe fixedly connected between the front end and the air pump. The height of the magnet block is greater than the diameter of the ink pen, and the magnetic force of the magnet block is smaller than the suction force of the rubber suction cup.

According to an embodiment of the present invention, the display frame includes a fixed block. The fixed block is fixedly installed on the left upper end of the workbench. An electric push rod is fixedly installed on the right end of the fixed block. A positioning plate is fixedly installed on the telescopic end of the electric push rod. The left end of the positioning plate There is a set of square groups symmetrically installed on the upper and lower sides. Each square group is composed of front and rear symmetrical square blocks. The opposite ends of the square blocks on the front and rear sides are fixedly installed with one-way bearings. The one-way bearings on the front and rear sides are fixedly connected with positioning column, the positioning column on the lower side is covered with a paper roll, and limit holes are symmetrically opened up and down on the positioning plate. The paper roll on the paper roll passes through the two limit holes. A rubber block is fixed on the inner wall of the limit hole. The upper side The positioning post fixes the end of the paper roll passing through the two limit holes, and a control handle is fixedly installed on the front end of the positioning post.

It can be seen from the above technical solutions that the present invention has the following advantages:

1. In the present invention, when the two-way screw rotates, the bottom of the fixed groove on the rectangular composite plate supports the bottom of the reinforced concrete wall panel. When the rectangular composite panel is in close contact with the left and right ends of the reinforced concrete wall panel, the distance-control screw is rotated. The rubber block at the lower end of the extrusion block is in close contact with the upper end of the reinforced concrete wall panel to achieve the purpose of fixing and clamping the reinforced concrete wall panel.

2. In the present invention, force is applied to the middle part of the reinforced concrete wall panel through a metal column with a semicircular cross-section structure. The arc surface is in contact with the reinforced concrete wall panel. The surface of the reinforced concrete wall panel will not be damaged and affect the reinforced concrete. The bending strength of the wall panel is tested, and the line contact between the metal column of the semicircular structure and the reinforced concrete wall panel prevents the pressure from being dispersed and ensures that the extrusion force exerted by the force-applying cylinder will not be wasted. E-shaped frame Make the force on the metal column balanced.

3. In the present invention, the rubber suction cup is matched with the air pump and the magnet block. Since the magnetic force of the magnet block is smaller than the suction force of the rubber suction cup, when the rubber suction cup and the reinforced concrete wall panel need to be attracted to each other, the rubber suction cup and the steel bar are connected through the air pump. The gas between the concrete wall panels is discharged. When it is necessary to separate the rubber suction cup and the reinforced concrete wall panel, the air pump is used to ventilate the rubber suction cup and the reinforced concrete wall panel. The magnet block is used to attract the fixed plate, so that the fixed plate Supported and positioned by the support plate.

4. In the present invention, the upper positioning column is driven to rotate forward by controlling the handle, thereby moving the paper roll on the positioning plate, and the used paper roll is rolled up by the upper positioning column to achieve the purpose of keeping the paper roll unused. The paper roll is left on the right end of the positioning plate for use, and the one-way bearing prevents the positioning column from rotating reversely due to the force of the ink pen.

In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions and the beneficial effects brought by the technical features of these technical solutions described above, the embodiments of the present application provide a prefabricated building wall panel based on Other technical problems that the strength detection equipment can solve, other technical features included in the technical solution, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.

Figure 1 shows a schematic front view of a three-dimensional structure of a prefabricated building wall panel strength testing device according to an embodiment of the present invention.

Figure 2 shows a schematic front view of the three-dimensional structure of the display stand.

Figure 3 shows a schematic rear view of the cleaning rack and the display rack.

FIG. 4 shows a schematic front cross-sectional plan structural view of a prefabricated building wall panel strength testing device provided according to an embodiment of the present invention.

FIG. 5 shows a schematic structural diagram of a front view of a prefabricated building wall panel strength testing device according to an embodiment of the present invention.

FIG. 6 shows a cross-sectional view along the line A-A in FIG. 5 .

Among them, the above-mentioned drawings include the following reference signs:

1. Fixed unit; 11. Workbench; 12. Two-way screw; 13. Motor one; 14. Wall panel fixing frame; 141. Rectangular combination plate; 142. Fixed groove; 143. Distance control screw; 144. Extrusion block; 145. Rubber plate; 2. Detection unit; 21. Fixed bracket; 22. Force application cylinder; 23. Force application part; 231. E-shaped frame; 232. Metal column; 24. Cleaning frame; 241. Rectangular frame plate; 242 , cleaning brush; 243. Electric slide rail; 25. Pressure indicator; 26. Electric telescopic rod; 27. Support plate; 271. Positioning bar; 272. Magnet block; 28. Distance measuring piece; 281. Fixed plate; 282. Rubber suction cup; 283, ink pen; 284, air pump; 285, communication tube; 29, display stand; 291, fixed block; 292, electric push rod; 293, positioning plate; 294, square block; 295, one-way bearing; 296 , positioning column; 297, paper roll; 298, limit hole; 299, rubber block; 300, control handle.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Referring to Figures 1 and 3, a prefabricated building wall panel strength testing equipment includes a fixed unit 1 and a detection unit 2. The detection unit 2 is located at the upper end of the fixed unit 1 and is used to perform simple bending tests on reinforced concrete wall panels; The fixed unit 1 includes a workbench 11. A two-way screw 12 is rotatably connected to the middle of the workbench 11. A motor 13 is fixedly installed on the right end of the workbench 11 through a motor base. The output shaft of the motor 13 is fixedly connected to the two-way screw 12 through a coupling. , the two-way screw 12 is symmetrically connected to the wall panel fixing bracket 14 in a threaded manner for positioning and clamping the wall panel reinforced concrete wall panel; the detection unit 2 includes a fixing bracket 21, and a fixing bracket is fixedly installed at the front end of the workbench 11 21. A force-applying cylinder 22 is fixedly installed at the lower end of the fixed bracket 21. The telescopic end of the force-applying cylinder 22 is fixedly installed with a force-applying member 23 for squeezing the reinforced concrete wall panel. A cleaning rack 24 is fixedly installed at the front end of the fixed bracket 21. A pressure indicator 25 is fixedly installed on the force-applying cylinder 22, an electric telescopic rod 26 is fixedly installed on the upper end of the workbench 11, a support plate 27 is fixedly installed on the telescopic end of the electric telescopic rod 26, and a distance measuring piece 28 is placed on the upper end of the support plate 27. A display frame 29 is provided at the upper end of the workbench 11. The display frame 29 cooperates with the distance measuring piece 28 to simply judge the bending degree of the reinforced concrete wall panel; firstly, the reinforced concrete wall panel is transported to the wall panel fixing frame 14, and is passed through the motor. 13 with a two-way screw 12 rotates, thereby driving the wall panel fixing brackets 14 on the left and right sides to move toward each other to fix the reinforced concrete wall panels. At this time, the electric telescopic rod 26 drives the support plate 27 to move upward until the distance measuring member 28 is in contact with the steel bar. The lower end surface of the concrete wall panel is in contact and attracted to the reinforced concrete wall panel. The horizontal displacement of the display frame 29 is adjusted so that it contacts the distance measuring member 28. At this time, the force applying cylinder 22 drives the force applying member 23 to move downward. , apply force to the fixed reinforced concrete wall panel, and at the same time observe the traces on the display frame 29 to determine whether the distance measuring piece 28 has moved. If it moves, record the number of the pressure indicator 25, and measure the pressure on the display frame 29. Measure the trace length, measure the distance between the wall panel fixing brackets 14 and the thickness of the reinforced concrete wall panel, and finally use the formula to calculate the bending strength. If it does not move, increase the force cylinder 22 to the reinforced concrete wall panel. The force is applied until the distance measuring member 28 moves on the display stand 29 and leaves traces. After each use of the force applying member 23, it is cleaned through the cleaning rack 24 to prevent impurity particles from adhering to the lower end surface of the force applying member 23 and affecting the next time. Bending test.

Referring to Figures 4 and 5, the wall panel fixing bracket 14 includes a rectangular combination plate 141. The two-way screw rod 12 is symmetrically connected to the rectangular combination plate 141 in a threaded manner. The opposite ends of the rectangular combination plate 141 are provided with fixing slots 142. A distance control screw 143 is rotatably connected to the middle part of the fixed groove 142. The lower side of the distance control screw 143 is connected with an extrusion block 144 in a threaded manner. A rubber plate 145 is fixedly installed on the lower end of the extrusion block 144 and the inner wall of the fixed groove 142. The block 144 and the fixed groove 142 are connected in a sliding fit; when the two-way screw 12 rotates, the bottom of the fixed groove 142 on the rectangular composite plate 141 supports the bottom of the reinforced concrete wall panel. When the rectangular composite plate 141 and the reinforced concrete When the left and right ends of the wall panel are in close contact, the distance control screw 143 is rotated so that the rubber block 299 at the lower end of the extrusion block 144 is in close contact with the upper end of the reinforced concrete wall panel to achieve the purpose of fixing and clamping the reinforced concrete wall panel.

Referring to Figure 4, the force-applying member 23 includes an E-shaped frame 231. The E-shaped frame 231 is fixedly installed at the telescopic end of the force-applying cylinder 22. A metal column 232 is fixedly installed at the lower end of the E-shaped frame 231. The cross-section of the metal column 232 is a semicircle. shape structure; force is exerted on the middle part of the reinforced concrete wall panel through the metal column 232 with a semicircular cross-section structure, the arc surface is in contact with the reinforced concrete wall panel, and the surface of the reinforced concrete wall panel will not be damaged, affecting the reinforced concrete wall panel. The bending strength is detected, and the metal column 232 of the semicircular structure is in line contact with the reinforced concrete wall panel to avoid the pressure being dispersed and ensure that the extrusion force exerted by the force applying cylinder 22 will not be wasted. The E-shaped frame 231 to balance the force on the metal column 232.

Referring to Figures 3 and 4, the cleaning rack 24 includes a rectangular frame plate 241. The rectangular frame plate 241 is fixedly installed on the front end of the fixed bracket 21. The inner end of the rectangular frame plate 241 is connected with a cleaning brush 242 in a sliding fit. The cleaning brush 242 The bristles are made of metal, and an electric slide rail 243 is fixedly installed on the right side of the lower end of the rectangular frame plate 241. The moving end of the electric slide rail 243 is fixedly connected to the cleaning brush 242; the electric slide rail 243 drives the cleaning brush 242 on the rectangular frame plate 241 Move upward to clean the lower end surface of the metal pillar 232 after reset.

Referring to Figure 6, the upper end surface of the support plate 27 is smooth. Positioning strips 271 are fixedly installed around the support plate 27. Magnet blocks 272 are fixedly fixed and symmetrically installed on the upper end of the support plate 27; the distance measuring member 28 is limited by the positioning strips 271. , through the attraction between the magnet block 272 and the distance measuring element 28 .

Referring to Figures 2, 3, 4, 5 and 6, the distance measuring member 28 includes a fixed plate 281. The fixed plate 281 is placed on the upper end of the support plate 27. The fixed plate 281 is made of a plurality of strip plates from left to right. Arranged and connected by pin rotation, the fixed plate 281 has magnetic attraction. The upper end of the fixed plate 281 is fixed with a rubber suction cup 282. The lower end of the middle part of the fixed plate 281 is evenly fixed with an ink pen 283. The first and last ends of the ink pens 283 point to the left and right sides respectively. , an air pump 284 is fixedly installed at the front end of the fixed plate 281, the suction cups on the rubber suction cup 282 are connected to each other, a communication pipe 285 is fixedly connected between the front end of the rubber suction cup 282 and the air pump 284, the height of the magnet block 272 is greater than the diameter of the ink pen 283, and the magnet The magnetic force of the block 272 is smaller than the suction force of the rubber suction cup 282; when the electric telescopic rod 26 drives the support plate 27 to move upward, the rubber suction cup 282 contacts the reinforced concrete wall panel, and the air pump 284 moves the rubber suction cup 282 to the reinforced concrete wall panel. The gas is discharged, causing the rubber suction cup 282 to attract the reinforced concrete wall panel. At this time, the fixed plate 281 and the ink pen 283 stay on the lower end surface of the reinforced concrete wall panel with the rubber suction cup 282, and the electric telescopic rod 26 drives the support plate 27 to return To the initial position, when the reinforced concrete wall panel passes the bending test, the electric telescopic rod 26 drives the support plate 27 to move upward until the support plate 27 contacts the fixed plate 281, and the magnet block 272 and the fixed plate 281 are attracted to each other. Air is introduced between the rubber suction cup 282 and the reinforced concrete wall panel through the air pump 284. The rubber suction cup 282 and the reinforced concrete wall panel no longer attract each other. The electric telescopic rod 26 drives the support plate 27 to move downward and return to the original position. The suction cup 282 remains on the support plate 27 along with the fixing plate 281 .

Referring to Figures 2, 3, 4 and 5, the display frame 29 includes a fixed block 291. The fixed block 291 is fixedly installed at the upper left end of the workbench 11. An electric push rod 292 is fixedly installed at the right end of the fixed block 291. The electric push rod 292 is fixedly installed at the right end of the fixed block 291. A positioning plate 293 is fixedly installed on the telescopic end of the rod 292. A set of square groups is symmetrically installed on the upper and lower sides of the left end of the positioning plate 293. Each group of square groups is composed of front and rear symmetrical square blocks 294. The opposite ends of the square blocks 294 on the front and rear sides are fixedly installed. The one-way bearing 295 has a positioning post 296 fixedly connected between the one-way bearings 295 on the front and rear sides. The lower positioning post 296 is covered with a paper roll 297. The positioning plate 293 is symmetrically provided with limited holes 298 up and down, and the paper roll is The paper roll on 297 passes through the two limit holes 298. A rubber block 299 is fixedly installed on the inner wall of the limit hole 298. The upper positioning post 296 fixes the end of the paper roll passing through the two limit holes 298. The positioning post A control handle 300 is fixedly installed at the front end of 296; the control handle 300 drives the upper positioning post 296 to rotate forward, thereby moving the paper roll on the positioning plate 293. When the ink pen 283 remains on the paper roll at the right end of the positioning plate 293 After the traces are measured, before the next experiment, turn the control handle 300 to rewind the used paper roll by the upper positioning post 296, and leave the unused paper roll at the right end of the positioning plate 293 for use. The one-way bearing 295 prevents the positioning post 296 from rotating reversely due to the force of the ink pen 283 .

The working principle of the present invention: the first step: first transport the reinforced concrete wall panels to the wall panel fixing frame 14, and rotate the two-way screw rod 12 through the motor 13, thereby driving the wall panel fixing frames 14 on the left and right sides to move towards each other, and the reinforced concrete Wall panels are fixed.

Step 2: Use the electric telescopic rod 26 to drive the support plate 27 to move upward until the distance measuring member 28 contacts the lower end surface of the reinforced concrete wall panel and is attracted to the reinforced concrete wall panel. Adjust the horizontal displacement of the display frame 29 so that It is in contact with the distance measuring member 28 .

The third step: drive the force-applying member 23 downward through the force-applying cylinder 22 to apply force and squeeze the fixed reinforced concrete wall panel. At the same time, observe the traces on the display frame 29 to determine whether the distance-measuring member 28 has moved. If move, record the number of the pressure indicator 25, measure the length of the trace on the display frame 29, measure the distance between the wall panel fixing frames 14 and the thickness of the reinforced concrete wall panel, and finally use the formula to calculate the flexural strength .

In the description of the present invention, it should be understood that the terms "center", "middle", "upper", "lower", "front", "back", "left", "right", "top", " The orientations or positional relationships indicated by "bottom", "inner", "outer", "end", "axial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. As well as simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

In addition, the terms "first", "second", "number one", "number two", "one" and "two" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit designation. The number of technical characteristics indicated. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the description of the present invention, it should also be noted that, unless otherwise clearly stated and limited, the terms "setting", "connecting", "installing" and "connecting" should be understood in a broad sense. For example, it can be a fixed connection, It can also be a detachable connection, or an integral connection, or a sliding connection; it can be a mechanical connection, or it can be an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The examples of this specific implementation mode are all preferred embodiments of the present invention and do not limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered by within the protection scope of the present invention.

Claims (7)

1. A prefabricated building wall panel strength testing equipment, characterized in that it includes a fixed unit (1) and a detection unit (2). The detection unit (2) is located at the upper end of the fixed unit (1) and is used for testing reinforced concrete walls. The plate is subjected to a simple bending test; The fixed unit (1) includes a workbench (11). A two-way screw (12) is rotatably connected to the middle of the workbench (11). A motor (13) is fixedly installed on the right end of the workbench (11) through a motor base. The motor (13) is fixedly mounted on the right end of the workbench (11). 13) The output shaft is fixedly connected to the two-way screw (12) through a coupling. The two-way screw (12) is symmetrically threaded to the left and right and is connected to a wall panel fixing frame (14) for positioning and clamping the wall panel reinforced concrete wall panel. ; The detection unit (2) includes a fixed bracket (21). The fixed bracket (21) is fixedly installed on the front end of the workbench (11). The lower end of the fixed bracket (21) is fixedly installed with a force-applying cylinder (22). The force-applying cylinder (22) ) The telescopic end is fixedly installed with a force-applying member (23) for squeezing the reinforced concrete wall panel, a cleaning frame (24) is fixedly installed at the front end of the fixed bracket (21), and a pressure is fixedly installed on the force-applying cylinder (22) The display instrument (25) has an electric telescopic rod (26) fixedly installed on the upper end of the workbench (11). A support plate (27) is fixedly installed on the telescopic end of the electric telescopic rod (26). A distance measuring device is placed on the upper end of the support plate (27). The upper end of the workbench (11) is provided with a display frame (29). The display frame (29) cooperates with the distance measuring piece (28) to make a simple judgment on the bending degree of the reinforced concrete wall panel. 2. A prefabricated building wall panel strength testing equipment according to claim 1, characterized in that: the wall panel fixing frame (14) includes a rectangular combination plate (141), and the two-way screw (12) is symmetrically threaded on the left and right. The connection method is connected with a rectangular combination plate (141). The opposite ends of the rectangular combination plate (141) are provided with fixing slots (142). The middle part of the fixing slot (142) is rotatably connected with a distance control screw (143). The distance control screw (143) ) is connected with an extrusion block (144) in a threaded manner on the lower side. A rubber plate (145) is fixedly installed on the lower end of the extrusion block (144) and the inner wall of the fixing groove (142). The extrusion block (144) and the fixing groove (142) (142) are connected by sliding fit. 3. A prefabricated building wall panel strength testing equipment according to claim 1, characterized in that: the force applying member (23) includes an E-shaped frame (231), and the telescopic end of the force applying cylinder (22) is fixedly installed. There is an E-shaped frame (231), and a metal column (232) is fixedly installed at the lower end of the E-shaped frame (231). The cross-section of the metal column (232) is a semicircular structure. 4. A prefabricated building wall panel strength testing equipment according to claim 1, characterized in that: the cleaning frame (24) includes a rectangular frame plate (241), and a rectangular frame is fixedly installed at the front end of the fixed bracket (21). Board (241), the inner end of the rectangular frame plate (241) is connected with a cleaning brush (242) in a sliding fit. The bristles of the cleaning brush (242) are made of metal. An electric motor is fixedly installed on the right side of the lower end of the rectangular frame plate (241). The sliding rail (243), the moving end on the electric sliding rail (243) is fixedly connected to the cleaning brush (242). 5. A prefabricated building wall panel strength testing equipment according to claim 1, characterized in that: the upper end surface of the support plate (27) is smooth, and positioning strips (271) are fixedly installed around the support plate (27). , the upper end of the support plate (27) is symmetrically fixed with magnet blocks (272) front and rear. 6. A kind of prefabricated building wall panel strength testing equipment according to claim 1, characterized in that: the distance measuring member (28) includes a fixed plate (281), and a fixed plate (281) is placed on the upper end of the support plate (27). 281), the fixed plate (281) is composed of multiple strip plates arranged from left to right and connected through pin rotation. The fixed plate (281) has magnetic attraction, and a rubber suction cup (282) is fixedly installed on the upper end of the fixed plate (281). ), the lower end of the middle part of the fixed plate (281) is evenly fixed with ink pens (283), the ink pens (283) point to the left and right sides respectively, and the front end of the fixed plate (281) is fixedly installed with an air pump (284) and a rubber suction cup (282) The suction cups on the rubber suction cup (282) are connected to each other. A communication pipe (285) is fixedly connected between the front end of the rubber suction cup (282) and the air pump (284). The height of the magnet block (272) is greater than the diameter of the ink pen (283). The magnet block (272) The magnetic force is smaller than the suction force of the rubber suction cup (282). 7. A prefabricated building wall panel strength testing equipment according to claim 1, characterized in that: the display frame (29) includes a fixed block (291), and a fixed block is fixedly installed on the left upper end of the workbench (11). Block (291), the right end of the fixed block (291) is fixedly installed with an electric push rod (292), the telescopic end of the electric push rod (292) is fixedly installed with a positioning plate (293), and the left end of the positioning plate (293) is symmetrically installed with an upper and lower side. Each square group is composed of front and rear symmetrical square blocks (294). The opposite ends of the square blocks (294) on the front and rear sides are fixedly installed with one-way bearings (295). The one-way bearings (295) on the front and rear sides There is a positioning post (296) fixedly connected between them. The lower positioning post (296) is covered with a paper roll (297). The positioning plate (293) is symmetrically opened with limited holes (298) up and down. The paper roll (297) The paper roll on the upper side passes through the two limit holes (298). A rubber block (299) is fixedly installed on the inner wall of the limit hole (298). The upper positioning post (296) passes through the two limit holes (298). The end of the paper roll is fixed, and a control handle (300) is fixedly installed at the front end of the positioning post (296).