Hydraulic engineering bridge hardness detection device and use method thereof

Abstract

The invention discloses a hydraulic engineering bridge hardness detection device and a use method thereof, and relates to the technical field of bridge concrete detection.The hydraulic engineering bridge hardness detection device comprises a working plate and further comprises a pre-positioning device.A U-shaped plate is fixedly installed at the bottom of the working plate, a servo motor is fixedly installed at the top of the U-shaped plate, and a lead screw is fixedly installed at the output end of the servo motor; a sliding block is installed on the circumferential face of the lead screw in a threaded mode, the rear side of the sliding block is slidably connected with the inner wall of the U-shaped plate, a pressure sensor is fixedly installed on the front side of the sliding block, a shielding frame is fixedly installed at the top of the working plate, and the pre-positioning device comprises a positioning rod, a positioning plate, an electric push rod, a clamping plate, a detection rod, a detection plate, an elastic telescopic block and a limiting groove. The clamping plate is limited by the free end of the elastic telescopic block and cannot excessively extrude the cylinder to be detected, and the accuracy of the measured part can be ensured through pre-positioning, so that the error of hardness detection is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of bridge concrete detection, and in particular to a water conservancy project bridge hardness detection device and a use method thereof. Background Art

[0002] The hardness detection device of water conservancy project bridge usually consists of pressure sensor, clamping equipment, protective equipment and driving equipment.

[0003] The patent with the patent announcement number CN216433706U relates to a water conservancy project bridge hardness detection device. In view of the problems that the existing concrete detection equipment is not convenient to use, not convenient to collect particles generated by concrete extrusion, and not convenient to adjust the detection position, the following scheme is proposed, which includes a bottom box, a drawer is movably connected in the bottom box, an L-shaped plate, a support box, a controller and a motor are arranged on the top of the bottom box, a concrete block is placed on the top of the support box, a screw rod is rotatably installed on the inner side of the L-shaped plate, a telescopic mechanism is threadedly connected to the screw rod, a support tube is connected to the telescopic mechanism, a pressure sensor is embedded in the top of the support tube, a pressure seat is connected in the support tube, the pressure seat is connected to the pressure sensor, and a mounting seat is arranged at the bottom of the pressure seat. The patent is easy to use, easy to collect particles generated by concrete extrusion, and easy to adjust the detection position.

[0004] In the above patent, a pressure seat is connected inside the support tube, and the pressure seat is connected to the pressure sensor. A mounting seat is provided at the bottom of the pressure seat, which is convenient for collecting particles generated by concrete extrusion and adjusting the detection position. However, it is difficult to pre-position the columnar structure. If it is difficult to pre-position the columnar structure, the detection position of the pressure sensor will be inaccurate, resulting in errors in the hardness test results, which in turn affects the assessment of the health of the bridge structure. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a water conservancy project bridge hardness detection device and a method of using the same, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a water conservancy project bridge hardness detection device, including a working plate, and also a pre-positioning device, wherein a U-shaped plate is fixedly installed at the bottom of the working plate, a servo motor is fixedly installed at the top of the U-shaped plate, a screw rod is fixedly installed at the output end of the servo motor, a slider is threadedly installed on the circumferential surface of the screw rod, the rear side of the slider is slidably connected to the inner wall of the U-shaped plate, a pressure sensor is fixedly installed on the front side of the slider, and a shielding frame is fixedly installed on the top of the working plate, wherein the pre-positioning device includes a positioning rod, a positioning plate, an electric push rod, a clamping plate, a detection rod, and a detection The plate, the elastic telescopic block and the limiting groove, the elastic telescopic block moves downward so that the free end of the elastic telescopic block contacts the limiting groove and limits the clamping plate, and the clamping plate is limited by the free end of the elastic telescopic block and cannot excessively squeeze the column to be detected. The positioning rod slides through the inner and outer walls of the working plate, the positioning plate is fixedly installed on the rear side of the positioning rod, the electric push rod is fixedly installed through the inner and outer walls of the shielding frame, the clamping plate is fixedly installed on the output end of the electric push rod, the detection rod slides through the left and right walls of the clamping plate, the detection plate is fixedly installed on the left side of the detection rod, the elastic telescopic block is slidably installed on the right side of the clamping plate, and the limiting groove is opened on the top of the working plate.

[0007] According to the above technical solution, a No. 1 spring is arranged between the positioning plate and the shielding frame, and the No. 1 spring can drive the positioning plate to reset. A No. 2 spring is arranged between the detection plate and the clamping plate, and the No. 2 spring can drive the detection plate to reset. The top of the elastic telescopic block is set as an inclined surface.

[0008] According to the above technical solution, a No. 3 spring is arranged between the elastic telescopic block and the clamping plate, and the No. 3 spring can drive the elastic telescopic block to reset. The bottom of the free end of the elastic telescopic block is set as an inclined surface, and the right side of the detection rod is set as an arc surface. The detection rod is in contact with the top of the elastic telescopic block. The clamping plate can be easily reset by resetting the elastic telescopic block.

[0009] According to the above technical solution, an auxiliary device is provided on the front side of the shielding frame to prevent the column structure from excessive rotation, and a locking device is provided on the front side of the shielding frame. The auxiliary device includes a linkage hole, a stabilizing plate, a moving rod, a moving frame, a sloped frame, a rubber plate and a curved block. The movement of the sloped frame drives the rubber plate to move in a direction close to the U-shaped plate, and the rubber plate moves in a direction close to the U-shaped plate to squeeze and fix the side of the column to be detected. The linkage hole is opened on the front side of the shielding frame, the stabilizing plate is fixedly installed on the inner wall of the linkage hole, the moving rod slides through the front and rear walls of the stabilizing plate, the moving frame is fixedly installed at both ends of the moving rod, the sloped frame is fixedly installed on the rear side of the moving frame, the rubber plate is fixedly installed on the inner wall of the sloped frame, and the curved block is fixedly installed on the inner wall of the shielding frame.

[0010] According to the above technical solution, a No. 4 spring is arranged between the movable frame and the stabilizing plate, and the movable frame can be driven to reset by the No. 4 spring. An arc block is fixedly installed on the inner wall of the movable frame, and the side of the movable frame away from the rubber plate is set as an inclined surface.

[0011] According to the above technical solution, an arc block is fixedly installed on the inner wall of the moving frame, the inclined frame is elastic, and the moving frame is in contact with the clamping plate.

[0012] According to the above technical scheme, the locking device includes a support tube, a support plate, a support rod, a locking plate, a locking rod, a locking groove and a connecting frame. The locking rod moves to contact the locking groove and limit the positioning rod. The positioning rod is limited by the locking rod and cannot move during the column hardness detection process. The support tube is fixedly passed through the front side of the shielding frame, the support plate is slidably installed on the inner wall of the support tube, the support rod is fixedly installed on the right side of the support plate, the locking plate is slidably installed on the inner wall of the support tube, the locking rod is fixedly installed on the left side of the support plate, the locking groove is opened on the circumferential surface of the positioning rod, the connecting frame is fixedly installed on the right side of the support plate, and the support rod contacts the inner wall of the connecting frame.

[0013] According to the above technical solution, the right side of the support rod is set as an inclined surface, and a No. 5 spring is set between the support tube and the support plate. One end of the No. 5 spring is set on the inner wall of the support tube, and the other end is set on the left side of the support plate. The support plate can be driven to reset by the No. 5 spring, and liquid is set inside the support tube.

[0014] A method for using a water conservancy project bridge hardness detection device, using the above-mentioned water conservancy project bridge hardness detection device, comprising the following steps: Step 1: Manually pull the two positioning rods to move toward each other. The movement of the two positioning rods drives the two positioning plates to move toward each other, and place the column to be tested on the top of the working plate; Step 2: After the column to be tested is placed on the top of the working plate, the two positioning rods are loosened so that the two positioning plates move toward each other under the elastic force of the No. 1 spring, and the two positioning plates move toward each other to contact the column to be tested and squeeze the column to be tested for pre-positioning; Step 3: After the clamping plate clamps the column to be tested stably, the servo motor drives the screw to rotate, and the rotation of the screw drives the slider to move downward; Step 4: The slider moves downward, driving the pressure sensor to move downward. The pressure sensor moves downward to contact the column to be tested and perform hardness testing.

[0015] The present invention provides a water conservancy project bridge hardness detection device, which has the following beneficial effects: (1) The invention pre-positions the column to be tested by moving two positioning plates toward each other so as to contact the column to be tested and squeeze the column to be tested. The columnar structure usually has an irregular shape. Pre-positioning can help ensure the accuracy of the measured part, thereby reducing the error of hardness testing. The elastic telescopic block moves downward so that the free end of the elastic telescopic block contacts the limiting groove and limits the clamping plate. The clamping plate is limited by the free end of the elastic telescopic block and cannot over-extrude the column to be tested. By preventing the clamping plate from over-clamping the column, the clamping force applied is ensured to be uniform, thereby avoiding local overpressure or uneven deformation of the column, thereby improving the accuracy of the hardness test results.

[0016] (2) The invention drives the rubber plate to move toward the U-shaped plate by the movement of the inclined frame. The rubber plate moves toward the U-shaped plate to squeeze and fix the side of the column to be tested. The anti-rotation effect of the rubber plate on the column enables the rubber plate to effectively fix the side of the column, thereby preventing the column from excessively rotating during the hardness test, further ensuring the accuracy of the test results. The inclined frame and the rubber plate are deformed to shake off the debris adhered to the surface of the rubber plate. By shaking off the debris or particles adhered to the surface of the rubber plate, it is possible to prevent the debris from affecting the supporting effect of the rubber plate, thereby ensuring the accuracy and reliability of the test results.

[0017] (3) The invention drives the locking rod to move by moving the locking plate toward the positioning rod. The locking rod moves and contacts the locking groove to limit the positioning rod. The positioning rod is limited by the locking rod and cannot move during the column hardness test. By limiting the movement of the positioning rod, the column position can be effectively prevented from shifting during the test, thereby reducing interference caused by human error. This further ensures that the column remains stationary during the test and avoids deviations in the test data due to the shaking of the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the U-shaped plate and the servo motor of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 4 This is a schematic diagram of the position structure of the shielding frame and the linkage hole of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part B in the middle is enlarged; Figure 6 This is a schematic diagram of the position structure of the slope frame and the rubber plate of the present invention; Figure 7 For the present invention Figure 6Schematic diagram of the enlarged structure of part C in the middle.

[0019] In the figure: 1. working plate; 2. U-shaped plate; 31. servo motor; 32. lead screw; 33. slider; 4. pressure sensor; 5. shielding frame; 6. positioning rod; 7. positioning plate; 8. electric push rod; 9. clamping plate; 10. detection rod; 11. detection plate; 12. elastic telescopic block; 13. limiting groove; 141. linkage hole; 142. stabilizing plate; 143. moving rod; 144. moving frame; 145. inclined frame; 146. rubber plate; 147. arc block; 148. curved block; 151. support tube; 152. support plate; 153. support rod; 154. locking plate; 155. locking rod; 156. locking groove; 157. connecting frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 5 , one embodiment of the present invention is: a water conservancy project bridge hardness detection device, including a working plate 1, and also including a pre-positioning device, wherein a U-shaped plate 2 is fixedly installed at the bottom of the working plate 1, a servo motor 31 is fixedly installed on the top of the U-shaped plate 2, a screw rod 32 is fixedly installed at the output end of the servo motor 31, a slider 33 is threadedly installed on the circumferential surface of the screw rod 32, the rear side of the slider 33 is slidably connected to the inner wall of the U-shaped plate 2, a pressure sensor 4 is fixedly installed on the front side of the slider 33, and a shielding frame 5 is fixedly installed on the top of the working plate 1, wherein the pre-positioning device includes a positioning rod 6, a positioning plate 7, an electric push rod 8, a clamping plate 9, a detection rod 10, a detection plate 11, an elastic telescopic block 12 and a limit groove 13, ... The positioning rod 6 slides through the inner and outer walls of the working plate 1, the positioning plate 7 is fixedly installed on the rear side of the positioning rod 6, the electric push rod 8 is fixedly installed through the inner and outer walls of the shielding frame 5, the clamping plate 9 is fixedly installed on the output end of the electric push rod 8, the detection rod 10 slides through the left and right walls of the clamping plate 9, the detection plate 11 is fixedly installed on the left side of the detection rod 10, the elastic telescopic block 12 is slidably installed on the right side of the clamping plate 9, and the limit groove 13 is opened on the top of the working plate 1. Pre-positioning can help ensure the accuracy of the measured part, thereby reducing the error of hardness detection. By preventing the clamping plate 9 from excessively clamping the column, it ensures that the clamping force applied is uniform, avoids local overpressure or uneven deformation of the column, and thus improves the accuracy of the hardness test results.

[0022] A No. 1 spring is arranged between the positioning plate 7 and the shielding frame 5, and the No. 1 spring can drive the positioning plate 7 to reset. A No. 2 spring is arranged between the detection plate 11 and the clamping plate 9, and the No. 2 spring can drive the detection plate 11 to reset. The top of the elastic telescopic block 12 is arranged as an inclined surface.

[0023] A No. 3 spring is arranged between the elastic telescopic block 12 and the clamping plate 9, and the No. 3 spring can drive the elastic telescopic block 12 to reset. The bottom of the free end of the elastic telescopic block 12 is set as an inclined surface, and the right side of the detection rod 10 is set as an arc surface. The detection rod 10 is in contact with the top of the elastic telescopic block 12. The resetting of the clamping plate 9 can be facilitated by resetting the elastic telescopic block 12.

[0024] A method for using a water conservancy project bridge hardness detection device, using the above-mentioned water conservancy project bridge hardness detection device, comprising the following steps: Step 1: Manually pull the two positioning rods 6 to move toward each other, and the movement of the two positioning rods 6 drives the two positioning plates 7 to move toward each other, and place the column to be tested on the top of the working plate 1; Step 2: After the column to be tested is placed on the top of the working plate 1, the two positioning rods 6 are loosened so that the two positioning plates 7 move toward each other under the elastic force of the first spring, and the two positioning plates 7 move toward each other to contact the column to be tested and squeeze the column to be tested for pre-positioning; Step 3: After the clamping plate 9 clamps the column to be inspected stably, the servo motor 31 operates to drive the screw rod 32 to rotate, and the rotation of the screw rod 32 drives the slider 33 to move downward; Step 4: The slider 33 moves downward to drive the pressure sensor 4 to move downward. The pressure sensor 4 moves downward to contact the column to be tested and perform hardness testing.

[0025] When this embodiment is working: manually pull the two positioning rods 6 to move toward each other, the two positioning rods 6 move toward each other and drive the two positioning plates 7 to move toward each other, the two positioning plates 7 move toward each other to squeeze the No. 1 spring, and the No. 1 spring is squeezed by the positioning plate 7 to produce deformation and accumulate force. At the same time, the column to be detected is placed on the top of the working plate 1. After the column to be detected is placed on the top of the working plate 1, the two positioning rods 6 are released so that the two positioning plates 7 move toward each other under the elastic force of the No. 1 spring, and the two positioning plates 7 move toward each other and contact the column to be detected and squeeze the column to be detected for pre-positioning. After the pre-positioning of the column to be detected is completed, the electric push rod 8 drives the clamping plate 9 to move in the direction close to the positioning plate 7, and the clamping plate 9 moves in the direction close to the positioning plate 7 to drive the detection rod 10 and the detection plate 11 to move, and the detection plate 11 moves in the direction close to the positioning plate 7 to contact the column and squeeze the column. At the same time, the detection plate 11 is subjected to the reaction force of the extruded column to move close to the elastic telescopic block 12 The detection plate 11 moves in the direction close to the elastic telescopic block 12 to squeeze the No. 2 spring. The No. 2 spring is deformed and stored by the squeezing of the detection plate 11. At the same time, the detection plate 11 moves in the direction close to the elastic telescopic block 12 to drive the detection rod 10 to move. The detection rod 10 moves and contacts the inclined surface of the elastic telescopic block 12 and squeezes the elastic telescopic block 12. The elastic telescopic block 12 moves downward under the squeezing of the detection rod 10. The elastic telescopic block 12 moves downward so that the free end of the elastic telescopic block 12 contacts the limiting groove 13 and limits the clamping plate 9. The clamping plate 9 is limited by the free end of the elastic telescopic block 12 and cannot excessively squeeze the column to be detected. After the clamping plate 9 clamps the column to be detected stably, the servo motor 31 operates to drive the screw rod 32 to rotate. The rotation of the screw rod 32 drives the slider 33 to move downward. The downward movement of the slider 33 drives the pressure sensor 4 to move downward. The pressure sensor 4 moves downward and contacts the column to be detected and performs hardness detection.

[0026] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, an auxiliary device for preventing the column structure from excessively rotating is provided on the front side of the shielding frame 5, and a locking device is provided on the front side of the shielding frame 5. The auxiliary device includes a linkage hole 141, a stabilizing plate 142, a moving rod 143, a moving frame 144, a sloped frame 145, a rubber plate 146 and a curved block 148. The linkage hole 141 is opened on the front side of the shielding frame 5, the stabilizing plate 142 is fixedly mounted on the inner wall of the linkage hole 141, the moving rod 143 slides through the front and rear walls of the stabilizing plate 142, the moving frame 144 is fixedly mounted on both ends of the moving rod 143, the sloped frame 145 is fixedly mounted on the rear side of the moving frame 144, the rubber plate 146 is fixedly mounted on the inner wall of the sloped frame 145, and the curved block 148 is fixedly mounted on the inner wall of the shielding frame 5. Through the anti-rotation effect of the rubber plate 146 on the column, the rubber plate 146 can effectively fix the side of the column, thereby preventing the column from excessively rotating during the hardness test, and further ensuring the accuracy of the test results.

[0027] A No. 4 spring is arranged between the moving frame 144 and the stabilizing plate 142 , and the moving frame 144 can be driven to reset by the No. 4 spring. An arc block 147 is fixedly installed on the inner wall of the moving frame 144 , and the side of the moving frame 144 away from the rubber plate 146 is arranged as an inclined surface.

[0028] An arc block 147 is fixedly installed on the inner wall of the movable frame 144, the inclined frame 145 is elastic, and the movable frame 144 is in contact with the clamping plate 9. By shaking off the debris or particles adhering to the surface of the rubber plate 146, the debris can be prevented from affecting the supporting effect of the rubber plate 146, thereby ensuring the accuracy and reliability of the detection results.

[0029] The locking device includes a support tube 151, a support plate 152, a support rod 153, a locking plate 154, a locking rod 155, a locking groove 156 and a connecting frame 157. The support tube 151 is fixedly passed through the front side of the shielding frame 5, the support plate 152 is slidably installed on the inner wall of the support tube 151, the support rod 153 is fixedly installed on the right side of the support plate 152, the locking plate 154 is slidably installed on the inner wall of the support tube 151, the locking rod 155 is fixedly installed on the left side of the support plate 152, the locking groove 156 is provided on the circumferential surface of the positioning rod 6, the connecting frame 157 is fixedly installed on the right side of the support plate 152, and the support rod 153 contacts the inner wall of the connecting frame 157. By limiting the movement of the positioning rod 6, the column position can be effectively avoided from being offset during the detection process, thereby reducing the interference caused by human error, further ensuring that the column remains stationary during the test, and avoiding deviations in the test data due to the shaking of the column.

[0030] The right side of the support rod 153 is set as an inclined plane, and a No. 5 spring is set between the support tube 151 and the support plate 152. One end of the No. 5 spring is set on the inner wall of the support tube 151, and the other end is set on the left side of the support plate 152. The No. 5 spring can drive the support plate 152 to reset, and liquid is set inside the support tube 151.

[0031] When the present embodiment is working, the electric push rod 8 drives the clamping plate 9 to move in the direction close to the positioning plate 7, the clamping plate 9 moves in the direction close to the positioning plate 7, contacts with the inclined surface of the moving frame 144 and squeezes the moving frame 144, the moving frame 144 is squeezed by the clamping plate 9 and moves in the direction close to the U-shaped plate 2, the moving frame 144 moves in the direction close to the U-shaped plate 2 to pull the No. 4 spring, the No. 4 spring is pulled by the moving frame 144 to deform and accumulate force, and at the same time the moving frame 144 moves in the direction close to the U-shaped plate 2 and drives the inclined surface frame 145 to move, the inclined surface frame 145 moves and drives the rubber plate 146 to move in the direction close to the U-shaped plate 2, the rubber plate 146 moves in the direction close to the U-shaped plate 2 to the column to be detected The side is squeezed and fixed, and when the electric push rod 8 operates to drive the clamping plate 9 to move and reset in the direction away from the positioning plate 7, the clamping plate 9 is reset and disengaged from the contact with the moving frame 144. After the moving frame 144 is disengaged from the contact with the clamping plate 9, the moving frame 144 moves and resets in the direction away from the U-shaped plate 2 under the elastic force of the No. 4 spring. The moving frame 144 moves in the direction away from the U-shaped plate 2 and drives the inclined plane frame 145 to move and reset. The inclined plane frame 145 moves and resets to squeeze the curved block 148. The inclined plane frame 145 is deformed by the reaction force of the extruded curved block 148. The inclined plane frame 145 is deformed so that the rubber plate 146 is deformed together. The inclined plane frame 145 and the rubber plate 146 are deformed to shake off the debris adhered to the surface.

[0032] The moving frame 144 moves toward the direction close to the U-shaped plate 2, driving the arc block 147 to move. The arc block 147 moves to contact the inclined surface of the support rod 153 and squeezes the support rod 153. The support rod 153 is squeezed by the arc block 147 and moves toward the direction close to the positioning rod 6. The support rod 153 moves toward the direction close to the positioning rod 6 and drives the support plate 152 to move. The support plate 152 moves toward the direction close to the positioning rod 6 to squeeze the No. 5 spring. The No. 5 spring is squeezed by the support plate 152 to produce deformation and accumulate force. At the same time, the support plate 152 moves toward the direction close to the positioning rod 6. The liquid inside the support tube 151 is squeezed, and the liquid inside the support tube 151 is squeezed by the support plate 152 and moves toward the direction close to the locking plate 154 and squeezes the locking plate 154. The locking plate 154 is squeezed by the liquid inside the support tube 151 and moves toward the direction close to the positioning rod 6. The locking plate 154 moves toward the direction close to the positioning rod 6 and drives the locking rod 155 to move. The locking rod 155 moves and contacts with the locking groove 156 and limits the positioning rod 6. The positioning rod 6 is limited by the locking rod 155 and cannot move during the column hardness test.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic engineering bridge hardness detection device, comprising a working plate (1), characterized in that: Also included is a pre-positioning device; The bottom of the working plate (1) is fixedly mounted with a U-shaped plate (2), the top of the U-shaped plate (2) is fixedly mounted with a servo motor (31), the output end of the servo motor (31) is fixedly mounted with a lead screw (32), the circumferential surface of the lead screw (32) is threadedly mounted with a slider (33), the rear side of the slider (33) is slidably connected to the inner wall of the U-shaped plate (2), the front side of the slider (33) is fixedly mounted with a pressure sensor (4), and the top of the working plate (1) is fixedly mounted with a shielding frame (5); The pre-positioning device comprises a positioning rod (6), a positioning plate (7), an electric push rod (8), a clamping plate (9), a detection rod (10), a detection plate (11), an elastic telescopic block (12) and a limiting groove (13); the positioning rod (6) slides through the inner and outer walls of the working plate (1); the positioning plate (7) is fixedly mounted on the rear side of the positioning rod (6); the electric push rod (8) is fixedly mounted on the inner and outer walls of the shielding frame (5); the clamping plate (9) is fixedly mounted on the output end of the electric push rod (8); the detection rod (10) slides through the left and right walls of the clamping plate (9); the detection plate (11) is fixedly mounted on the left side of the detection rod (10); the elastic telescopic block (12) is slidably mounted on the right side of the clamping plate (9); and the limiting groove (13) is arranged on the top of the working plate (1); Wherein, an auxiliary device for preventing the column structure from excessively rotating is arranged on the front side of the shielding frame (5), and a locking device is arranged on the front side of the shielding frame (5).

2. A hydraulic engineering bridge hardness detection device according to claim 1, characterized in that: A No. 1 spring is provided between the positioning plate (7) and the shielding frame (5), a No. 2 spring is provided between the detection plate (11) and the clamping plate (9), and the top of the elastic telescopic block (12) is provided as an inclined surface.

3. A hydraulic engineering bridge hardness detection device according to claim 2, characterized in that: A No. 3 spring is arranged between the elastic telescopic block (12) and the clamping plate (9); the bottom of the free end of the elastic telescopic block (12) is arranged as an inclined surface; the right side of the detection rod (10) is arranged as an arc surface; and the detection rod (10) is in contact with the top of the elastic telescopic block (12).

4. A hydraulic engineering bridge hardness detection device according to claim 3, characterized in that: The auxiliary device comprises a linkage hole (141), a stabilizing plate (142), a moving rod (143), a moving frame (144), a sloped frame (145), a rubber plate (146) and a curved block (148); the linkage hole (141) is opened at the front side of the shielding frame (5); the stabilizing plate (142) is fixedly mounted on the inner wall of the linkage hole (141); the moving rod (143) slides through the front and rear walls of the stabilizing plate (142); the moving frame (144) is fixedly mounted at both ends of the moving rod (143); the sloped frame (145) is fixedly mounted on the rear side of the moving frame (144); the rubber plate (146) is fixedly mounted on the inner wall of the sloped frame (145); and the curved block (148) is fixedly mounted on the inner wall of the shielding frame (5).

5. A hydraulic engineering bridge hardness detection device according to claim 4, characterized in that: A No. 4 spring is provided between the moving frame (144) and the stabilizing plate (142); an arc-shaped block (147) is fixedly mounted on the inner wall of the moving frame (144); and a side of the moving frame (144) away from the rubber plate (146) is provided as an inclined surface.

6. A hydraulic engineering bridge hardness detection device according to claim 5, characterized in that: An arc block (147) is fixedly mounted on the inner wall of the movable frame (144); the inclined frame (145) is elastic; and the movable frame (144) is in contact with the clamping plate (9).

7. A hydraulic engineering bridge hardness detection device according to claim 6, characterized in that: The locking device comprises a support tube (151), a support plate (152), a support rod (153), a locking plate (154), a locking rod (155), a locking groove (156) and a connecting frame (157); the support tube (151) is fixedly installed through the front side of the shielding frame (5); the support plate (152) is slidably installed on the inner wall of the support tube (151); the support rod (153) is fixedly installed on the right side of the support plate (152); the locking plate (154) is slidably installed on the inner wall of the support tube (151); the locking rod (155) is fixedly installed on the left side of the support plate (152); the locking groove (156) is provided on the circumferential surface of the positioning rod (6); the connecting frame (157) is fixedly installed on the right side of the support plate (152); and the support rod (153) is in contact with the inner wall of the connecting frame (157).

8. A hydraulic engineering bridge hardness detection device according to claim 7, characterized in that: The right side of the support rod (153) is arranged as an inclined surface, a No. 5 spring is arranged between the support tube (151) and the support plate (152), and liquid is arranged inside the support tube (151).

9. A method for using a water conservancy project bridge hardness detection device, using the water conservancy project bridge hardness detection device according to claim 8, characterized in that: The following steps are involved: Step 1: manually pull the two positioning rods (6) to move toward each other, and the two positioning rods (6) move toward each other, driving the two positioning plates (7) to move toward each other, and placing the column to be tested on the top of the working plate (1); Step 2: After the column to be tested is placed on the top of the working plate (1), the two positioning rods (6) are loosened so that the two positioning plates (7) move toward each other under the elastic force of the first spring, and the two positioning plates (7) move toward each other to contact the column to be tested and squeeze the column to be tested for pre-positioning; Step 3: After the clamping plate (9) stably clamps the column to be inspected, the servo motor (31) operates to drive the screw rod (32) to rotate, and the rotation of the screw rod (32) drives the slider (33) to move downward; Step 4: The slider (33) moves downward, driving the pressure sensor (4) to move downward. The pressure sensor (4) moves downward to contact the column to be tested and perform hardness testing.

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