A concrete prefabricated component strength detection device

Abstract

The present invention relates to the technical field of concrete component detection, and specifically to a precast concrete component strength detection device, including a moving plate, a driving unit, a supporting unit and a detection mechanism. The upper limit block of the push rod provided in the present invention sequentially presses against the lifting plate so that the detection ring and the rebound hammer are sequentially and equidistantly moved backward by a specified distance, and at the same time, through the cooperation between the matching block on the moving ring and the spiral rod, the detection position of the rebound hammer is changed at an equal angle during the sequential backward movement of the detection ring, and multiple rebound hammers are used to perform multiple equidistant and different angle detection operations on the circumferential inner wall of the cement cylinder, and the specific strength distribution of the cement cylinder is obtained through the above multiple detections, so as to determine whether the strength of the cement cylinder meets the use requirements of long-term burial underground, thereby improving the comprehensiveness of cement cylinder detection and reducing later maintenance costs.

Description

Technical Field

[0001] The invention relates to the technical field of concrete component detection, in particular to a prefabricated concrete component strength detection device. Background Art

[0002] Precast concrete components refer to concrete structural components that are prefabricated in a factory or a specific site. These components are transported to the construction site for installation after reaching a certain strength. Precast concrete components are widely used in the construction field due to their standardized production, durability and ability to be quickly installed. Common precast concrete components include precast concrete panels, cement cylinders and precast wall panels. Cement cylinders usually refer to cylindrical components made of concrete, which are mainly used in water supply and drainage systems, irrigation systems, cable protection, bridge and tunnel projects, etc. In most of these scenarios, cement cylinders need to be buried underground for a long time for use.

[0003] Before determining the production method, the strength of the cement cylinder needs to be tested to ensure that the strength of the cement cylinder produced by this production method meets the factory standards. After that, batch production can be carried out and qualified cement cylinders can be sent to the factory for inspection. Figure 2 The cement cylinders are stacked in a medium manner for use. When they are needed, external forklift equipment will take out the required cement cylinders and transport them to the construction site for burial.

[0004] At present, the strength test process of cement cylinders is mainly concentrated in the production stage within the factory. The surface of the cement cylinders is manually observed to see if there is any damage, or other existing instruments (such as rebound testers, etc.) are used to conduct random inspections on the same batch of cement cylinders. However, in some scenarios, cement cylinders need to be used for a long time after being buried and are not easy to replace. Therefore, the strength requirements of the cement cylinders used are more stringent. The first detection method among the current detection methods is difficult to detect the strength of the cement cylinders used in detail and comprehensively. The second detection method mainly uses external existing instruments to conduct random inspections on cement cylinders leaving the factory, which is difficult to meet the strength detection needs of cement cylinders in the above scenarios. It is easy for some cement cylinders to be damaged before the service life reaches the scrap time after being buried, thereby increasing the construction cost. Summary of the invention

[0005] Based on this, it is necessary to provide a precast concrete component strength detection device to solve the above-mentioned problems of the prior art.

[0006] The application provides a concrete prefabricated component strength detection device, comprising: a movable plate, a driving unit is arranged on the rear end surface of the movable plate, an L-shaped frame is penetrated through the movable plate for sliding forward and backward, a base with a cavity inside and openings at both ends is arranged on the L-shaped frame for sliding left and right, and a support unit for positioning support is arranged between the base and the movable plate.

[0007] The detection mechanism is provided on the base for detecting the strength of the cement cylinder, and the detection mechanism includes a lifting plate, and the upper end surface of the base is provided with a lifting plate which slides up and down through a telescopic rod, and the upper end surface of the lifting plate is fixedly provided with a clamping plate through a vertical column, and the rear end surface of the lifting plate is fixedly provided with a spiral rod, and a moving ring is sleeved on the spiral rod, and a detection ring is fixedly provided on the circumferential surface of the moving ring through a plurality of circumferentially distributed fixing frames, and a placing cylinder with an axis pointing to the moving ring and perpendicular to the axis of the moving ring is slidably provided on the arc surface of the detection ring, and a rebound tester is fixedly provided in the placing cylinder, and a pushing group for pushing all rebound testers for detection is provided on the detection ring.

[0008] The detection unit is provided on the moving ring and is used to drive the detection ring to move equidistantly forward and backward and rotate equiangularly in the circumferential direction. The detection unit includes a pushing rod for pushing the moving ring.

[0009] According to a preferred embodiment, the pushing group includes a fixed column, the front end face of the detection ring is fixedly provided with a plurality of fixed columns which are evenly distributed circumferentially and whose axes extend from front to rear, a driving ring is commonly provided on all the fixed columns for forward and backward sliding, the rear end face of the driving ring is fixedly provided with an inclined plate which corresponds one by one to the placing cylinder, and the inclined plate is inclined from front to rear toward the axis direction of the moving ring.

[0010] According to a favorable embodiment, the detection unit also includes a rotating ring, the front end face of the movable ring is coaxially rotatably provided with a rotating ring, the push rod is fixedly provided on the front end face of the rotating ring and the axis of the push rod extends from front to rear, a through groove is opened on the lifting plate, the push rod is movably provided in the through groove, and the inner ring surface of the movable ring is fixedly provided with a mating block that cooperates with the spiral rod.

[0011] According to a favorable embodiment, the detection unit also includes a limit groove, and the front end surface of the lifting plate is provided with two limit grooves which are symmetrical on the left and right and connected to the through groove. The push rod is fixed with multiple limit groups which are equidistantly distributed along its axial direction, and the limit groups include two limit blocks which are symmetrical in the upper and lower directions.

[0012] According to a favorable embodiment, the detection mechanism also includes a support block, the movable plate slides up and down and penetrates the support block, the front end surface of the support block is rotatably provided with a support cylinder with an opening facing forward, the rear end of the screw rod cooperates with the support cylinder, and the detection mechanism also includes a supporting unit for moving the support cylinder to a specified position and supporting the screw rod.

[0013] According to a preferred embodiment, the support unit includes a sliding block, and two left-right symmetrical sliding blocks are penetrated on the movable plate for sliding left and right. A accommodating cylinder is fixedly provided on the front end surface of the sliding block, and a plurality of groups of circumferentially evenly distributed bar groups are slidably provided in the accommodating cylinder. The bar group includes two support bars which are distributed front and back and whose length direction points to the axis of the accommodating cylinder and is perpendicular to the axis. A support plate is fixedly provided on the two support bars in the same group, and a support group is provided between the two accommodating cylinders and the base.

[0014] According to a favorable embodiment, the expansion group includes a moving cylinder with an opening at the front end, a moving cylinder is slidably arranged in the accommodating cylinder along its axial direction through a connecting plate, two frustums distributed front and back with the small diameter ends facing backwards are fixedly sleeved on the moving cylinder, and a matching strip that cooperates with the arc surface of the frustum is fixedly arranged on the expansion strip.

[0015] According to a favorable embodiment, the expansion group also includes two racks slidably arranged left and right in the inner cavity of the base, and a driving column with an axis extending from front to back is fixedly sleeved on the rack, and the driving column is composed of a small diameter section and a large diameter section from back to front.

[0016] According to a preferred embodiment, the expansion group also includes a transmission gear, and the inner cavity of the base is provided with a transmission gear for rotation through a transmission shaft with a vertical axis, and the two racks are symmetrical about the axis of the transmission shaft, and the two racks are meshed with the transmission gear.

[0017] According to a favorable embodiment, the supporting unit includes a rotating plate, and the rear end face of the sliding block is provided with a rotating plate rotatably via a rotating axis, the two rotating plates are staggered front and back, and a rectangular groove is provided on the rotating plate, and a supporting column passing through the two rectangular grooves is fixedly provided on the rear end face of the support block, and a T-shaped plate located between the movable plate and the rotating plate is fixedly sleeved on the support column, and two bolts are provided on the rear end face of the horizontal section of the T-shaped plate for sliding left and right, and the two bolts correspond to the two rotating plates one by one respectively, and a movable groove is provided through the rotating plate, and the bolts pass through the corresponding movable grooves, and nuts are threaded on the bolts.

[0018] In summary, the present invention includes at least one of the following beneficial effects: First, the upper limit block of the push rod provided in the present invention presses against the lifting plate in turn so that the detection ring and the rebound tester are equidistantly moved backward a specified distance in turn, and at the same time, through the cooperation between the matching block on the moving ring and the spiral rod, the detection position of the rebound tester is changed at an equal angle during the process of the detection ring moving backward in turn, and multiple rebound testers are used to perform multiple equidistant and different angle detection operations on the circumferential inner wall of the cement cylinder. The specific strength distribution of the cement cylinder is obtained through the above multiple detections, so as to determine whether the strength of the cement cylinder meets the use requirements of long-term burial underground, thereby improving the comprehensiveness of cement cylinder detection and reducing later maintenance costs.

[0019] 2. In the present invention, three support plates in the same accommodating cylinder are pressed against the inner wall of the cement cylinder, so that the axis of the subsequent screw rod can be adjusted to be in line with the axis of the cement cylinder to be tested. At the same time, in the above process, the driving column is inserted into the moving cylinder, so that the base, the moving cylinder, the driving column and the moving plate together form a rectangular frame. Next, the screw rod is inserted into the supporting cylinder, so that the screw rod, the supporting cylinder, the lifting plate, the L-shaped frame and the moving plate together form a rectangular frame, which provides a stable foundation for the subsequent detection process and improves the stability of the detection process.

[0020] 3. The present invention enables the lifting plate and the spiral rod to be located in the middle position in the left-right direction of the two cement cylinders through the meshing between the rack and the transmission gear, and fixes the two rotating plates by tightening the bolts after adjusting the distance between the support column and the two rotating shafts. Therefore, the axis of the spiral rod is finally collinear with the axis of the cement cylinder to be tested, ensuring that the distance between each rebound tester on the test ring and the inner wall of the cement cylinder is the same, thereby ensuring the desirability of the test results.

[0021] Secondly, after the above process, two rotating plates, sliding blocks and supporting columns jointly form a stable triangular frame to improve the stability in the subsequent detection process.

[0022] 4. In the present invention, the L-shaped frame is snap-fitted to the movable plate, the movable plate is snap-fitted to the driving unit, the driving column and the corresponding movable cylinder are plug-fitted, and the threaded rod and the supporting cylinder are plug-fitted. Therefore, the detection operation steps are simplified through multiple snap-fitting and plug-in methods, thereby meeting the random inspection needs of cement cylinders in different positions and improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A right view of a precast concrete component strength detection device provided according to an embodiment of the present invention is shown.

[0025] Figure 2 A schematic diagram of the three-dimensional structure of a precast concrete component strength detection device provided according to an embodiment of the present invention is shown.

[0026] Figure 3 A schematic diagram of the three-dimensional structure between the lifting plate, the opening plate and the moving plate provided according to an embodiment of the present invention is shown.

[0027] Figure 4A schematic diagram of the three-dimensional structure among a detection ring, a lifting plate and a moving plate provided according to an embodiment of the present invention is shown.

[0028] Figure 5 A schematic diagram of a partial cross-sectional three-dimensional structure among a lifting plate, a detection ring and a moving ring provided according to an embodiment of the present invention is shown.

[0029] Figure 6 A schematic diagram of a partial cross-sectional three-dimensional structure between a containing cylinder, a driving column and a support plate provided according to an embodiment of the present invention is shown.

[0030] The above drawings include the following reference numerals: 1, moving plate; 2, driving unit; 3, L-shaped frame; 30, base; 4, supporting unit; 40, sliding block; 41, accommodating cylinder; 42, opening bar; 43, opening plate; 44, moving cylinder; 440, round table; 441, matching bar; 442, rack; 443, driving column; 444, transmission gear; 5, detection mechanism; 50, lifting plate; 500, pressing plate; 501, screw rod; 502, moving ring; 5 03. Detection ring; 504. Placement tube; 505. Rebound tester; 51. Pushing group; 510. Fixed column; 511. Drive ring; 512. Inclined plate; 52. Support block; 520. Support tube; 6. Detection unit; 60. Push rod; 61. Rotating ring; 611. Matching block; 612. Limiting groove; 613. Limiting block; 7. Supporting unit; 70. Rotating plate; 71. Rectangular groove; 72. Support column; 73. T-shaped plate; 74. Bolt; 75. Movable groove. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] like Figure 1 and Figure 2 As shown, a precast concrete component strength detection device comprises: a moving plate 1, a rear end surface of the moving plate 1 is provided with a driving unit 2, the driving unit 2 is an existing moving device including moving wheels, an L-shaped frame 3 is slidably penetrated through the moving plate 1, a base 30 with a cavity inside and openings at both ends is slidably provided on the L-shaped frame 3, and a supporting unit 4 for positioning support is commonly provided between the base 30 and the moving plate 1.

[0033] like Figure 1 , Figure 2 and Figure 3As shown, a detection mechanism 5 for performing strength detection on cement cylinders is arranged on the base 30, and the detection mechanism 5 comprises a lifting plate 50. The upper end surface of the base 30 is provided with a lifting plate 50 which slides up and down through a telescopic rod. The lifting plate 50 is driven by an external hydraulic cylinder 1 (not shown in the figure) to move up and down. A clamping plate 500 is fixedly arranged on the upper end surface of the lifting plate 50 through a vertical column, and a spiral rod 501 is fixedly arranged on the rear end surface of the lifting plate 50. A moving ring 502 is sleeved on the spiral rod 501. A detection ring 503 is fixedly arranged on the circumferential surface of the moving ring 502 through a plurality of circumferentially distributed fixing frames, and a placing cylinder 504 whose axis points to the moving ring 502 and is perpendicular to the axis of the moving ring 502 is slidably arranged on the arc surface of the detection ring 503, a rebound tester 505 is fixedly arranged in the placing cylinder 504, and a pushing group 51 for pushing all the rebound testers 505 for detection is arranged on the detection ring 503.

[0034] like Figure 2 and Figure 4 As shown, the moving ring 502 is provided with a detection unit 6 for driving the detection ring 503 to move equidistantly forward and backward and rotate equiangularly in the circumferential direction. The detection unit 6 includes a pushing rod 60 for pushing the moving ring 502 .

[0035] During operation, the driving unit 2 is operated to make the movable plate 1 drive the supporting unit 4 thereon to move to the rear side of the cement cylinder, and make the movable plate 1 close to the rear end surface of the cement cylinder, and then the staff slides the L-shaped frame 3 and inserts it onto the movable plate 1, and then the staff pushes the base 30 from front to back, and during the backward movement of the base 30, the supporting unit 4 positions and spreads the two cement cylinders under the cement cylinder to be inspected, and during the backward movement of the base 30, the axis of the spiral rod 501 is made to be in line with the axis of the cement cylinder to be inspected, and then the pushing rod 60 is manually pushed backward, and the pushing rod 60 drives the detection ring 503 and the rebound The instrument 505 moves backward synchronously. When the detection ring 503 moves to the specified position, the pushing group 51 works so that all the placement cylinders 504 drive the rebound testers 505 thereon to move synchronously toward the inner wall of the cement cylinder to perform a strength test. Thereafter, the pushing rod 60 is continuously pushed through the detection unit 6 to make the moving ring 502 move equidistantly from front to back, and the detection ring 503 rotates at a fixed angle during each movement. The above detection process is repeated multiple times, and sampling tests are performed on different positions in the cement cylinder. The overall strength of the cement cylinder is obtained based on the obtained data. When the obtained data is higher than the set value, it indicates that the quality of the cement cylinder meets the use requirements.

[0036] After completing the inspection of the cement cylinder, the L-shaped frame 3 is moved forward and out, and then the mobile drive unit 2 is used to perform sampling inspection on the remaining cement cylinders again. Secondly, it should be noted that the mobile plate 1 is installed in the drive unit 2 by snap-fitting. When it is necessary to inspect cement cylinders at different heights, the installation direction or installation height of the mobile plate 1 is adjusted to meet the sampling inspection requirements of cement cylinders in different positions and improve the applicability of the device.

[0037] like Figure 2 and Figure 4 As shown, the pushing group 51 includes a fixed column 510, and the front end face of the detection ring 503 is fixedly provided with a plurality of fixed columns 510 which are evenly distributed circumferentially and whose axes extend from front to rear. A driving ring 511 is commonly slidably sleeved on all the fixed columns 510. The driving ring 511 is driven by an external hydraulic cylinder 2 (not shown in the figure) to move forward and backward. The rear end face of the driving ring 511 is fixedly provided with an inclined plate 512 which corresponds one by one to the placement cylinder 504, and the inclined plate 512 is inclined from front to rear toward the axis direction of the moving ring 502.

[0038] like Figure 4 and Figure 5 As shown, the detection unit 6 also includes a rotating ring 61, and the front end face of the movable ring 502 is coaxially rotatably provided with the rotating ring 61, the push rod 60 is fixedly provided on the front end face of the rotating ring 61 and the axis of the push rod 60 extends from front to rear, a through groove is opened on the lifting plate 50, the push rod 60 is movably provided in the through groove, and the inner ring surface of the movable ring 502 is fixedly provided with a matching block 611 matching with the spiral rod 501.

[0039] like Figure 5 As shown, the detection unit 6 also includes a limit groove 612, and the front end surface of the lifting plate 50 is provided with two limit grooves 612 which are symmetrical on the left and right and connected to the through groove. The push rod 60 is fixed with a plurality of limit groups which are equidistantly distributed along its axial direction, and the limit groups include two limit blocks 613 which are symmetrical in the upper and lower directions, and the limit blocks 613 cooperate with the corresponding limit grooves 612 after rotation.

[0040] like Figure 1 , Figure 4 and Figure 6 As shown, the detection mechanism 5 also includes a support block 52, and the movable plate 1 slides up and down through the support block 52. The front end surface of the support block 52 is rotatably provided with a support cylinder 520 with an opening facing forward, and the rear end of the screw rod 501 cooperates with the support cylinder 520. The detection mechanism 5 also includes a supporting unit 7 for moving the support cylinder 520 to a specified position and supporting the screw rod 501.

[0041] During operation, after the movable plate 1 is placed, the L-shaped frame 3 is plugged and installed on the movable plate 1 and the two cement cylinders below the cement cylinder to be inspected are positioned and supported by the support unit 4. After completing the positioning and supporting operation, the supporting unit 7 moves the support block 52 and the support cylinder 520 to the specified position and locks them. Secondly, in the above process, the lifting plate 50 is adjusted by the external hydraulic cylinder so that the lifting plate 50 drives the screw rod 501 thereon to move into the cement cylinder to be inspected, and the screw rod 501 is inserted into the support cylinder 520. Therefore, the axis of the screw rod 501 is made to be collinear with the axis of the cement cylinder to be inspected in the above manner, that is, all the placement cylinders 504 are at the same distance from the inner wall of the cement cylinder, and then the inspection operation is carried out. It should be noted that the lifting plate 50 moves upward so that the clamping plate 500 on the lifting plate 50 is pressed against the inner wall of the cement cylinder to be inspected, so as to avoid the screw rod 501 from forming a cantilever beam structure that affects the stability of the overall inspection process.

[0042] At this time, the detection ring 503 is located in the cement cylinder, and the two limit blocks 613 on the rear side of the push rod 60 are pressed against the lifting plate 50. The external hydraulic cylinder 2 works to make the drive ring 511 move backward, and the drive ring 511 drives the multiple inclined plates 512 thereon to move backward synchronously. Through the cooperation between the inclined plates 512 and the corresponding placement cylinders 504, the placement cylinders 504 drive the rebound hammer 505 therein to approach the inner wall of the cement cylinder. After the rebound hammer 505 contacts the inner wall of the cement cylinder, it shrinks and detects the strength of the place, completing the initial detection operation. After that, the external hydraulic cylinder 2 is reset, and the staff rotates the push rod 60 so that the upper limit block 613 of the push rod 60 is aligned with The limit grooves 612 are aligned, and the push rod 60 is pushed so that the two limit blocks 613 on the rear side of the push rod 60 pass through the limit grooves 612. Then the push rod 60 is rotated so that the limit blocks 613 are staggered with the limit grooves 612. At this time, the limit blocks 613 in the second group from back to front are pressed against the lifting plate 50. In the above process, the moving ring 502 moves backward by the spacing between adjacent limit groups. Then the detection operation is repeated again. The above process is repeated so that the limit blocks 613 in each limit group are pressed against the lifting plate 50 from back to front in turn, and a detection operation is performed after pressing. That is, multiple detection operations are completed, and finally multiple groups of detection data are obtained.

[0043] During the process of the push rod 60 being equidistantly moved backward for testing, the push rod 60 pushes the moving ring 502 to move backward through the rotating ring 61. Through the threaded cooperation between the matching block 611 and the spiral rod 501, the moving ring 502 drives the detection ring 503 to rotate once at an equal angle during each equidistant backward movement in the above process, that is, the moving detection trajectory of each rebound tester 505 is changed, so that the detection points are evenly distributed circumferentially and equidistantly from front to back in the inner cavity of the cement cylinder, thereby ensuring the comprehensiveness of the cement cylinder strength detection and improving the accuracy of the detection results.

[0044] like Figure 2 , Figure 3 and Figure 6 As shown, the support unit 4 includes a sliding block 40, and two left-right symmetrical sliding blocks 40 are inserted through the movable plate 1 for sliding left and right. A receiving tube 41 is fixedly provided on the front end surface of the sliding block 40, and a plurality of groups of circumferentially evenly distributed bar groups are slidingly provided in the receiving tube 41. The bar group includes two support bars 42 distributed front and back and with the length direction pointing to the axis of the receiving tube 41 and perpendicular to the axis. A support plate 43 is fixedly provided on the two support bars 42 in the same group, and a support group is commonly provided between the two receiving tubes 41 and the base 30.

[0045] like Figure 3 and Figure 6 As shown, the expansion group includes a moving cylinder 44 with an opening at the front end, and the moving cylinder 44 is slidably arranged in the accommodating cylinder 41 along its axial direction through a connecting plate, and two round cones 440 distributed front and back with the small diameter ends facing backwards are fixedly sleeved on the moving cylinder 44, and a matching strip 441 that cooperates with the arc surface of the round cone 440 is fixedly arranged on the expansion strip 42.

[0046] like Figure 3 and Figure 6 As shown, the expansion group also includes two racks 442 slidably arranged in the inner cavity of the base 30, and a driving column 443 with an axis extending from front to back is fixedly sleeved on the rack 442, and the driving column 443 is composed of a small diameter section and a large diameter section from back to front, and the diameter of the large diameter section of the driving column 443 is larger than the inner cylinder diameter of the moving cylinder 44.

[0047] like Figure 3 and Figure 6 As shown, the expansion group also includes a transmission gear 444. The inner cavity of the base 30 is provided with a transmission gear 444 which is rotatably provided through a transmission shaft with a vertical axis. The two racks 442 are symmetrical about the axis of the transmission shaft in the front and rear directions, and the two racks 442 are meshed with the transmission gear 444.

[0048] During operation, the driving unit 2 is operated to make the movable plate 1 drive the supporting unit 4 thereon to move to the rear side of the cement cylinder. At this time, the corresponding two receiving cylinders 41 are respectively located in the corresponding two cement cylinders. Then the L-shaped frame 3 is plugged and installed on the movable plate 1. In the process, the small diameter section of the driving column 443 is inserted into the corresponding movable cylinder 44. The staff continues to push the L-shaped frame 3 and the base 30. The base 30 drives the two driving columns 443 to move continuously. The large diameter section of the driving column 443 contacts the movable cylinder 44. And push the moving cylinder 44, the moving cylinder 44 drives the truncated stage 440 thereon to move backward synchronously, through the cooperation between the truncated stage 440 and the corresponding matching strip 441, the matching strip 441 and the expansion strip 42 move in the direction away from the accommodating cylinder 41, and the expansion strip 42 drives the expansion plate 43 to move, so the three expansion plates 43 in the same accommodating cylinder 41 are pressed against the inner wall of the cement cylinder, and the axis of the accommodating cylinder 41 is collinear with the axis of the cement cylinder, so that the axis of the spiral rod 501 can be adjusted to be collinear with the axis of the cement cylinder to be detected later.

[0049] During the process of inserting the driving column 443 into the corresponding moving cylinder 44 and the process of the opening plate 43 opening and pressing against the cement cylinder, the two racks 442 move adaptively, and the engagement between the racks 442 and the transmission gear 444 makes the base 30 at the same distance from the two accommodating cylinders 41, that is, the lifting plate 50 and the screw rod 501 are located in the middle position in the left and right directions of the two cement cylinders. Secondly, by inserting the driving column 443 into the moving cylinder 44, the base 30, the moving cylinder 44, the driving column 443 and the moving plate 1 together form a rectangular frame, providing a stable foundation for the subsequent detection process.

[0050] like Figure 1 and Figure 6 As shown, the supporting unit 7 includes a rotating plate 70, and the rear end face of the sliding block 40 is provided with a rotating plate 70 by rotating the rotating axis, the two rotating plates 70 are staggered front and back, and a rectangular groove 71 is provided on the rotating plate 70, and the rear end face of the support block 52 is fixedly provided with a support column 72 passing through the two rectangular grooves 71, and a T-shaped plate 73 located between the movable plate 1 and the rotating plate 70 is fixedly sleeved on the support column 72, and two bolts 74 are provided on the rear end face of the horizontal section of the T-shaped plate 73 for sliding left and right, and the two bolts 74 correspond to the two rotating plates 70 one by one respectively, and a movable groove 75 is provided through the rotating plate 70, and the bolts 74 pass through the corresponding movable grooves 75, and the bolts 74 are threaded with nuts.

[0051] After the above positioning and stretching process, the axes of the lifting plate 50 and the spiral rod 501 are located in the same vertical plane, and then the distances between the support column 72 and the two rotating shafts are adjusted respectively, so that the distance between the support column 72 and the rotating shaft is twice the diameter of the cement cylinder. In this process, the support block 52 drives the support column 72 to move synchronously, and finally the axis of the support column 72 is collinear with the axis of the cement cylinder to be tested. In this process, the T-shaped plate 73 and the thread thereon move synchronously and adaptively, and then the two rotating plates 70 are fixed by the staff by tightening the bolts 74. Therefore, the two rotating plates 70, the sliding block 40, the support column 72 and the support block 52 are all limited and fixed. Because the spiral rod 501 is inserted in the support cylinder 520, the axis of the spiral rod 501 is collinear with the axis of the cement cylinder to be tested, ensuring that the distances between each rebound tester 505 on the detection ring 503 and the inner wall of the cement cylinder are the same, thereby ensuring the desirability of the detection result.

[0052] Secondly, after the above locking process, the two rotating plates 70, the sliding block 40 and the supporting column 72 together form a stable triangular frame, thereby improving the stability in the subsequent detection process.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A precast concrete component strength detection device, characterized in that: include: A movable plate (1), wherein a driving unit (2) is arranged on the rear end surface of the movable plate (1), an L-shaped frame (3) is slidably penetrated through the movable plate (1), a base (30) with a hollow interior and openings at both ends is slidably arranged on the L-shaped frame (3), and a support unit (4) for positioning support is arranged between the base (30) and the movable plate (1); The detection mechanism (5) is provided on the base (30) for detecting the strength of the cement cylinder. The detection mechanism (5) comprises a lifting plate (50). The upper end surface of the base (30) is provided with the lifting plate (50) for sliding up and down through a telescopic rod. The upper end surface of the lifting plate (50) is fixedly provided with a clamping plate (500) through a vertical column. The rear end surface of the lifting plate (50) is fixedly provided with a spiral rod (501). The spiral rod (501) is sleeved with a movable A ring (502) is provided, the circumferential surface of the moving ring (502) is fixedly provided with a detection ring (503) through a plurality of circumferentially distributed fixing frames, a placement tube (504) is slidably provided on the arc surface of the detection ring (503) with an axis pointing to the moving ring (502) and perpendicular to the axis of the moving ring (502), a rebound tester (505) is fixedly provided in the placement tube (504), and a pushing group (51) for pushing all the rebound testers (505) for testing is provided on the detection ring (503); A detection unit (6), the movable ring (502) is provided with a detection unit (6) for driving the detection ring (503) to move forward and backward with equal distances and to rotate circumferentially with equal angles, and the detection unit (6) comprises a pushing rod (60) for pushing the movable ring (502); The detection unit (6) further comprises a rotating ring (61), the front end surface of the movable ring (502) is provided with the rotating ring (61) for coaxial rotation, the push rod (60) is fixedly provided on the front end surface of the rotating ring (61) and the axis of the push rod (60) extends from front to rear, a through groove is provided on the lifting plate (50), the push rod (60) is movably provided in the through groove, and a matching block (611) matching with the spiral rod (501) is fixedly provided on the inner ring surface of the movable ring (502).

2. A precast concrete component strength detection device according to claim 1, characterized in that: The pushing group (51) comprises a fixed column (510), and a front end surface of the detection ring (503) is fixedly provided with a plurality of fixed columns (510) which are evenly distributed in the circumference and whose axes extend from front to back, and a driving ring (511) is slidably sleeved on all the fixed columns (510) in a front-to-back manner, and a tilting plate (512) corresponding to the placement cylinder (504) is fixedly provided on the rear end surface of the driving ring (511), and the tilting plate (512) is tilted from front to back toward the axis direction of the moving ring (502).

3. A precast concrete component strength detection device according to claim 1, characterized in that: The detection unit (6) further comprises a limit groove (612), the front end surface of the lifting plate (50) is provided with two limit grooves (612) which are symmetrical with each other and connected with the through groove, a plurality of limit groups which are equidistantly distributed along the axis direction of the push rod (60) are fixedly provided, the limit groups comprising two limit blocks (613) which are symmetrical with each other, and the limit blocks (613) cooperate with the corresponding limit grooves (612) after rotation.

4. A precast concrete component strength detection device according to claim 1, characterized in that: The detection mechanism (5) also includes a support block (52), the movable plate (1) slides up and down and penetrates the support block (52), the front end surface of the support block (52) is rotatably provided with a support cylinder (520) with an opening facing forward, the rear end of the spiral rod (501) cooperates with the support cylinder (520), and the detection mechanism (5) also includes a supporting unit (7) for moving the support cylinder (520) to a specified position and supporting the spiral rod (501).

5. A precast concrete component strength detection device according to claim 4, characterized in that: The support unit (4) comprises a sliding block (40), and two sliding blocks (40) are symmetrically arranged on the movable plate (1) for sliding left and right. A receiving tube (41) is fixedly arranged on the front end surface of the sliding block (40), and a plurality of groups of strip groups evenly distributed in the circumferential direction are slidingly arranged in the receiving tube (41). The strip group comprises two expansion strips (42) distributed front and back and with the length direction pointing to the axis of the receiving tube (41) and perpendicular to the axis. An expansion plate (43) is fixedly arranged on the two expansion strips (42) in the same group, and an expansion group is arranged between the two receiving tubes (41) and the base (30).

6. A precast concrete component strength detection device according to claim 5, characterized in that: The expansion group comprises a moving cylinder (44) with an opening at the front end, the moving cylinder (44) is slidably arranged in the accommodating cylinder (41) along the axial direction thereof through a connecting plate, two round platforms (440) distributed front and back and with the small diameter ends facing backwards are fixedly sleeved on the moving cylinder (44), and a matching strip (441) matching with the arc surface of the round platform (440) is fixedly arranged on the expansion strip (42).

7. A precast concrete component strength detection device according to claim 5, characterized in that: The expansion group also includes two racks (442) slidably arranged in the inner cavity of the base (30) to the left and right, and a driving column (443) with an axis extending from front to back is fixedly sleeved on the racks (442), and the driving column (443) is composed of a small diameter section and a large diameter section from back to front.

8. A precast concrete component strength detection device according to claim 5, characterized in that: The expansion group also includes a transmission gear (444). The inner cavity of the base (30) is rotatably provided with a transmission shaft with a vertical axis. The two racks (442) are symmetrical about the axis of the transmission shaft in the front and rear directions, and the two racks (442) are meshed with the transmission gear (444).

9. A precast concrete component strength detection device according to claim 5, characterized in that: The supporting unit (7) comprises a rotating plate (70), the rear end surface of the sliding block (40) is provided with a rotating plate (70) rotatably arranged via a rotating shaft, the two rotating plates (70) are staggered front and back, a rectangular groove (71) is provided on the rotating plate (70), a supporting column (72) penetrating the two rectangular grooves (71) is fixedly provided on the rear end surface of the supporting block (52), a T-shaped plate (73) located between the moving plate (1) and the rotating plate (70) is fixedly sleeved on the supporting column (72), two bolts (74) are provided on the rear end surface of the horizontal section of the T-shaped plate (73) for sliding left and right, and the two bolts (74) correspond to the two rotating plates (70) one by one, respectively, a movable groove (75) is provided penetratingly arranged on the rotating plate (70), the bolts (74) penetrate the corresponding movable grooves (75), and nuts are threadedly matched on the bolts (74).

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