A flatness detection device for prefabricated concrete panels after installation

Abstract

The invention discloses a flatness detection device for assembled precast concrete panels after installation, comprising a detection device body, wherein the detection device body comprises: a detection trolley, which is arranged at a precast concrete pavement; a detection unit, which is arranged on the detection trolley; a moving unit, which is arranged between the detection unit and the detection trolley; and a supporting unit, which is arranged on the detection trolley, and a laser rangefinder is arranged in the detection unit to cooperate with other structures in the detection unit. By arranging the detection trolley on the detection device body, the laser rangefinder in the detection unit cooperates with the moving unit and the supporting unit, the flatness of each concrete precast panel can be detected, thereby realizing the detection of the entire precast concrete pavement, thereby making the detection result more accurate, and being able to accurately judge and locate the deviation position when the detection result exceeds the error value.

Description

Technical Field

[0001] The invention relates to the technical field of road surface flatness detection, and in particular to a device for detecting the flatness of an assembled prefabricated concrete slab after installation. Background Art

[0002] At present, when testing the flatness of the road surface, the flatness is generally measured using a three-meter ruler. This method is mainly carried out by testers in conjunction with a ruler. There is also a method that directly uses continuous flatness testing equipment, which is more convenient. However, the above-mentioned testing methods are all tested on relatively flat roads.

[0003] However, for prefabricated concrete pavement, since the whole is a cast prefabricated component, its surface is generally flat after solidification. When the above-mentioned method is used for detection, when the detection equipment or method passes through each prefabricated board, since the surface of the prefabricated board is flat, it is impossible to accurately detect its flatness. Therefore, we need to redesign a detection equipment to be able to detect whether the height of each prefabricated board relative to the base soil layer is within the installation requirements (that is, whether the installation deviation of one end is high and the other end is low during the installation of the prefabricated board is too large, and whether the distance between the entire prefabricated board and the base soil layer is too high after pouring after installation). In this way, it can be judged whether the overall prefabricated pavement is flat.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a flatness detection device for assembled precast concrete slabs after installation, so as to solve the problem that the existing detection method proposed in the above background technology cannot accurately detect the flatness of the road surface when applied to the assembled precast slab road surface for detection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flatness detection device after the installation of an assembled prefabricated concrete slab, comprising a prefabricated concrete slab and a prefabricated concrete pavement formed therefrom, wherein a detection device body is provided at the prefabricated concrete pavement, and the detection device body comprises:

[0007] The inspection vehicle is set on the precast concrete pavement;

[0008] The detection unit is arranged on the detection trolley and is used to detect the flatness of each precast concrete slab after laying;

[0009] The mobile unit is arranged between the detection unit and the detection trolley, and is used to drive the detection unit to move so as to detect each precast concrete panel;

[0010] The support unit is arranged on the inspection trolley and is used to support the inspection trolley to a certain height when the inspection trolley moves to the position of the precast concrete slab.

[0011] Preferably, the mobile unit comprises:

[0012] The vertical moving mechanism is arranged on the inspection trolley and is used to drive the inspection unit to move vertically downward so that the inspection unit contacts the surface of the concrete precast slab to detect the flatness of the concrete precast slab;

[0013] The horizontal and vertical moving mechanisms are arranged on the vertical moving mechanism, and are used to drive the detection unit to move horizontally and vertically to realize each block.

[0014] Preferably, the vertical movement mechanism comprises:

[0015] A vertical movable plate is arranged at the lower end of the detection trolley and is used to carry the horizontal and vertical movable mechanism and the detection unit;

[0016] At least one first electric telescopic rod is arranged between the vertical movable plate and the detection trolley, and is used to drive the vertical movable plate to move up and down. The base end of the first electric telescopic rod is fixedly arranged on the detection trolley, and the telescopic end is connected to the vertical movable plate.

[0017] Preferably, the transverse and longitudinal movement mechanism comprises:

[0018] Two slide strips are symmetrically fixed on both sides of the vertical moving plate;

[0019] Two T-shaped sliders are slidably arranged in the grooves of the slide strips;

[0020] A first threaded rod, threadedly connected to the T-shaped slider, wherein a first motor for driving the first threaded rod to rotate is disposed at an end of the first threaded rod;

[0021] A connecting strip is fixedly arranged on the T-shaped slider and away from one end of the slide slot strip, a limiting slide slot is arranged on the connecting strip in a vertical direction of the slide slot strip, a limiting slide slot is slidably arranged on the limiting slide slot, and the lower end of the limiting slide slot is connected to the detection unit;

[0022] The second threaded rod is threadedly connected to the limiting sliding block, and one end of the second threaded rod is provided with a second motor for driving the second threaded rod to rotate.

[0023] Preferably, the detection unit comprises:

[0024] A load-bearing plate, fixedly arranged at the lower end of the limit slider;

[0025] Four groups of pressure detection mechanisms are symmetrically arranged on the bearing plate, and the horizontal placement position and horizontal plane deviation of the concrete precast slab are determined through the pressure detection structures of the four groups of pressure detection mechanisms.

[0026] Preferably, the pressure detection mechanism comprises:

[0027] A connecting rod, one end of which is fixedly arranged on the bearing plate, and the other end of which is rotatably provided with a rotating rod, wherein the rotation connection point between the connecting rod and the rotating rod is located in the middle of the rotating rod;

[0028] A compression spring is arranged at one end of the rotating rod, one end of which is connected to the rotating rod, and the other end is connected to the bearing plate. A rotating wheel is arranged at the end of the rotating rod away from the compression spring, and a laser rangefinder is arranged on the bearing plate located in the middle of the compression spring, for measuring the distance between the bearing plate and the rotating rod at this position;

[0029] The storage portion is arranged between the connecting rod and the rotating rod, and is used for storing the rotating rod when not in use.

[0030] Preferably, the storage portion comprises:

[0031] A storage plate, one end of which is rotatably arranged on the connecting rod, and the other end of which is provided with a fixing hole, a coordinated plate is connected to the middle of the storage plate, one end of the coordinated plate is rotatably connected to the storage plate, and the other end is rotatably arranged with the rotating rod;

[0032] The elastic protrusion is arranged on the connecting rod to be used in conjunction with the fixing hole on the storage plate.

[0033] Preferably, the support unit comprises:

[0034] Four sets of second electric telescopic rods are symmetrically arranged at the four corners of the inspection trolley;

[0035] The level meter is set on the inspection trolley and is used to judge whether the entire inspection trolley is in a horizontal state after the four sets of second electric telescopic rods fall to the base soil layer and support the inspection trolley, so that the subsequent inspection unit can detect the verticality more accurately.

[0036] Preferably, guide units are symmetrically arranged on both sides of the detection trolley, which are used to enable the detection trolley to move parallel in the longitudinal direction when the detection trolley continues to move forward after detecting a set of data, so as to avoid data errors caused by position deviation when the trolley moves;

[0037] Wherein, the guiding unit comprises:

[0038] Guide plates are rotatably arranged on both sides of the detection trolley, and a guide roller is rotatably arranged at one end of the guide plate away from the detection trolley;

[0039] The coordination component is arranged between the guide plate and the vertical movable plate, and is used to drive the guide roller to rotate and limit to both sides of the concrete precast plate when the vertical movable mechanism moves upward, so as to achieve the guiding effect and keep the guide roller in a horizontal state at all times during the rotation process.

[0040] Preferably, the coordination component comprises:

[0041] A rotating gear disposed at the rotating axis of the guide plate;

[0042] A rack plate is fixedly arranged on the vertical movable plate and meshed with the rotating gear. When the vertical movable plate moves upward, the rack plate moves upward and drives the rotating gear to rotate.

[0043] The angle limiter is arranged between the guide roller and the detection trolley, and is used to keep the guide roller in a horizontal state when the guide plate rotates;

[0044] Wherein, the angle limiting part comprises:

[0045] An L-shaped limit rod is arranged between the guide roller and the vertical movable plate, and a first sliding rod and a second sliding rod are slidably arranged at both ends of the L-shaped limit rod, the first sliding rod is fixed on the detection trolley, and a limit plate is fixedly arranged in a vertical direction at one end of the second sliding rod away from the L-shaped limit rod, and the limit plate is sleeved on the rotation of the guide roller at one end away from the second sliding rod;

[0046] Two sets of elastic members are respectively arranged at the sliding connection of the first sliding rod, the second sliding rod and the L-shaped limit rod, and are used to make the first sliding rod and the second sliding rod extend or shorten as the guide plate rotates, and maintain the angle limit of the guide roller.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] The present invention can detect the flatness of each precast concrete slab by arranging a detection trolley on the detection device body, a laser rangefinder in the detection unit, and the arrangement of a moving unit and a supporting unit, thereby realizing the detection of the entire precast concrete pavement, thereby making the detection result more accurate, and being able to accurately judge and locate the deviation position when the detection result exceeds the error value. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the overall construction structure of the present invention;

[0050] Figure 2 It is a three-dimensional diagram of the overall structure of the present invention;

[0051] Figure 3 It is a front view of the overall structure of the present invention;

[0052] Figure 4 It is a schematic diagram of the connection between the detection unit and the horizontal and vertical moving structure of the present invention;

[0053] Figure 5 It is a front view of the detection unit of the present invention;

[0054] Figure 6 This is the overall structural diagram of the guide unit of the present invention;

[0055] Figure 7 It is a partial cross-sectional view of the angle limiting portion of the present invention;

[0056] Figure 8 It is a cross-sectional view of the interior of the guide plate of the present invention;

[0057] Fig. 9 for Figure 4 Enlarged view of point A in the middle.

[0058] Figure numerals: 1-concrete precast panel; 2-detection trolley; 3-detection unit; 31-carrying plate; 32-pressure detection mechanism; 321-connecting rod; 322-rotating rod; 323-compression spring; 324-laser rangefinder; 325-storage part; 3251-storage plate; 3252-fixing hole; 3253-cooperative plate; 3254-elastic protrusion; 326-rotating wheel; 4-moving unit; 41-vertical moving mechanism; 411-vertical moving plate; 412-first electric telescopic rod; 42-horizontal and vertical moving mechanism; 421-slide plate; 422-T-type slider; 423-first threaded rod; 424-first Motor; 425-connecting strip; 426-limiting slide groove; 427-limiting slider; 428-second threaded rod; 429-second motor; 5-support unit; 51-second electric telescopic rod; 6-guide unit; 61-guide plate; 611-first slide plate; 612-second slide plate; 613-adjusting hole; 614-fixing strip; 615-extrusion spring; 62-guide roller; 63-coordinating component; 631-rotating gear; 632-rack plate; 633-angle limiting part; 6331-L-shaped limiting rod; 6332-first sliding rod; 6333-second sliding rod; 6334-limiting plate; 6335-elastic member. DETAILED DESCRIPTION

[0059] 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.

[0060] See also Figure 1-9The present invention provides a technical solution: a flatness detection device for prefabricated concrete panels after installation, comprising a prefabricated concrete panel 1 and a prefabricated concrete pavement formed thereon, wherein a detection device body is provided at the prefabricated concrete pavement, and the detection device body comprises:

[0061] The detection vehicle 2 is arranged on the precast concrete pavement;

[0062] The detection unit 3 is arranged on the detection vehicle 2 and is used to detect the flatness of each precast concrete slab 1 after laying;

[0063] The moving unit 4 is disposed between the detection unit 3 and the detection trolley 2, and is used to drive the detection unit 3 to move so as to detect each precast concrete panel 1;

[0064] The support unit 5 is arranged on the inspection trolley 2 and is used to support the inspection trolley 2 to a certain height when the inspection trolley 2 moves to the position of the precast concrete slab 1, so that the inspection unit 3 and the moving unit 4 can inspect the flatness of the precast concrete slab 1.

[0065] Wherein, the mobile unit 4 comprises:

[0066] The vertical moving mechanism 41 is arranged on the inspection trolley 2 and is used to drive the inspection unit 3 to move vertically downward so that the inspection unit 3 contacts the surface of the precast concrete slab 1 to detect the flatness of the precast concrete slab 1;

[0067] The horizontal and vertical moving mechanism 42 is arranged on the vertical moving mechanism 41, and is used to drive the detection unit 3 to move horizontally and vertically to realize each block.

[0068] In addition, the vertical movement mechanism 41 includes:

[0069] A vertical movable plate 411 is disposed at the lower end of the detection vehicle 2 and is used to carry the horizontal and vertical movable mechanism 42 and the detection unit 3;

[0070] At least one set of first electric telescopic rods 412 is arranged between the vertical movable plate 411 and the detection trolley 2, and is used to drive the vertical movable plate 411 to move up and down. The base end of the first electric telescopic rod 412 is fixedly arranged on the detection trolley 2, and the telescopic end is connected to the vertical movable plate 411.

[0071] At the same time, the transverse and longitudinal moving mechanism 42 includes:

[0072] Two slide strips 421 are symmetrically fixed on both sides of the vertical movable plate 411;

[0073] Two T-shaped sliding blocks 422 are slidably disposed in the grooves of the sliding groove strips 421;

[0074] A first threaded rod 423 is threadedly connected to the T-shaped slider 422, and a first motor 424 is disposed at the end of the first threaded rod 423 for driving the first threaded rod 423 to rotate;

[0075] A connecting strip 425 is fixedly arranged on the T-shaped slider 422 and away from one end of the slide slot strip 421. A limit slide slot 426 is arranged on the connecting strip 425 in a vertical direction of the slide slot strip 421. A limit slide block 427 is slidably arranged on the limit slide slot 426. The lower end of the limit slide block 427 is connected to the detection unit 3.

[0076] A second threaded rod 428 is threadedly connected to the limiting slider 427, and a second motor 429 is disposed at one end of the second threaded rod 428 for driving the second threaded rod 428 to rotate;

[0077] When in use, the first motor 424 and the second motor 429 can drive the first threaded rod 423 and the second threaded rod 428 to rotate, thereby adjusting the position of the detection unit 3 to detect different prefabricated panels.

[0078] At the same time, the detection unit 3 includes:

[0079] The carrying plate 31 is fixedly disposed at the lower end of the limiting slider 427;

[0080] Four groups of pressure detection mechanisms 32 are symmetrically arranged on the bearing plate 31 , and the horizontal placement position and horizontal plane deviation of the concrete precast slab 1 are determined by the pressure detection structures of the four groups of pressure detection mechanisms 32 .

[0081] Wherein, the pressure detection mechanism 32 includes:

[0082] A connecting rod 321, one end of which is fixedly disposed on the bearing plate 31, and a rotating rod 322 is rotatably disposed on the other end, wherein the rotation connection point between the connecting rod 321 and the rotating rod 322 is located in the middle of the rotating rod 322;

[0083] A compression spring 323 is provided at one end of the rotating rod 322, one end of which is connected to the rotating rod 322, and the other end is connected to the supporting plate 31. A rotating wheel 326 is provided at one end of the rotating rod 322 away from the compression spring 323, and a laser rangefinder 324 is provided on the supporting plate 31 located in the middle of the compression spring 323, for measuring the distance between the supporting plate 31 and the rotating rod 322 at this position;

[0084] The storage portion 325 is disposed between the connecting rod 321 and the rotating rod 322 and is used to store the rotating rod 322 when not in use;

[0085] During the inspection, after the inspection moves to the top of the concrete precast panel 1, the inspection trolley 2 can be lifted to a certain distance from the base soil layer through the support unit 5, and kept horizontal on the horizontal plane, and then the vertical moving mechanism 41 is adjusted to drive the inspection unit 3 to move down until the rotating wheel 326 on each pressure detection mechanism 32 contacts the concrete precast panel 1 and the movement is ended. At this time, the value of each detection point is recorded by the laser rangefinder 324, and the downward movement distance of the vertical moving mechanism 41 and the support unit 5 are opened. After the recording is completed, the horizontal and vertical moving mechanism 42 drives the inspection unit 3 to move forward. The distance of this movement is the length of the concrete precast panel 1. If the spacing between two adjacent concrete precast panels 1 is large, the distance needs to be added to the general spacing to ensure that each time the inspection unit 3 lands at basically the same position of the concrete precast panel 1, and then the laser rangefinder is recorded. The value of the rangefinder 324 is then adjusted to move the detection unit 3 horizontally to detect the adjacent precast concrete panels 1. When moving horizontally, the detection unit 3 can be first raised by the vertical movement mechanism 41 to avoid friction between the rotating wheel 326 and the precast concrete panel 1, which may damage the pressure detection mechanism 32. Then, when moving the precast concrete panel 1 at the adjacent position, the detection unit 3 is moved downward again. The descending distance is the ascending distance. The above operations are then repeated in sequence to record the distance measured by the laser rangefinder 324. After all the precast concrete panels 1 under the detection trolley 2 are detected, the support unit 5 is stored and the detection trolley 2 is continued to move forward. The above operations are repeated to detect the precast concrete panels 1. When the support unit 5 is propped up again, it is ensured that the height of the support unit 5 is consistent with the first time.

[0086] The flatness of the precast concrete panel 1 is judged by comparing the values ​​between the four groups of data detected each time with the values ​​detected by the device on the precast concrete panel 1 with completely horizontal flatness, so as to judge whether the detected precast concrete panel 1 is within the standard range. At the same time, the value can also be used to judge whether the installed precast concrete panel 1 is in a specific position that is too high or too low, so that when the value exceeds the range and needs to be adjusted, it can be adjusted quickly. The principle is to judge the spatial position of the precast concrete panel 1 relative to the base soil layer through four points of four detection values, that is, to construct the surface through three points, and the extra point among the four points is used to judge the data accuracy of the other three points.

[0087] In addition, the storage portion 325 includes:

[0088] The storage plate 3251 has one end rotatably disposed on the connecting rod 321 and the other end is provided with a fixing hole 3252. The middle of the storage plate 3251 is connected to a coordination plate 3253. One end of the coordination plate 3253 is rotatably connected to the storage plate 3251 and the other end is rotatably disposed with the rotating rod 322.

[0089] The elastic protrusion 3254 is provided on the connecting rod 321 to cooperate with the fixing hole 3252 on the receiving plate 3251 for use;

[0090] When storing, the storage plate 3251 can be rotated to a vertical state, that is, the fixing hole 3252 on the storage plate 3251 and the elastic protrusion 3254 are connected and fastened. During this process, the rotating plate will rotate to a vertical state of the connecting rod 321 to realize the storage process. When in use, only the elastic protrusion 3254 needs to be pressed out of the fixing hole 3252, and the rotating plate will be driven to rotate under the action of the compression spring 323 to perform the detection function.

[0091] Meanwhile, the support unit 5 comprises:

[0092] Four sets of second electric telescopic rods 51 are symmetrically arranged at the four corners of the detection vehicle 2;

[0093] The level meter is arranged on the detection trolley 2 and is used to judge whether the entire detection trolley 2 is in a horizontal state after the four sets of second electric telescopic rods 51 fall to the base soil layer and support the detection trolley 2, so that the subsequent detection unit 3 can detect the verticality more accurately.

[0094] Wherein, guide units 6 are symmetrically arranged on both sides of the detection trolley 2, which are used to enable the detection trolley 2 to move parallel in the longitudinal direction when the detection trolley 2 continues to move forward after detecting a set of data, so as to avoid position deviation and data error when the trolley moves;

[0095] Wherein, the guiding unit 6 comprises:

[0096] The guide plate 61 is rotatably arranged on both sides of the detection trolley 2, and a guide roller 62 is rotatably arranged at one end of the guide plate 61 away from the detection trolley 2;

[0097] The guide plate 61 is telescopically arranged, including a first slide plate 611 and a second slide plate 612 which are slidably arranged. The end of the first slide plate 611 and the rotating gear 631 are coaxially arranged for rotation. A guide roller 62 is arranged on the second slide plate 612. A length adjustment portion is arranged between the first slide plate 611 and the second slide plate 612. The length adjustment portion includes a plurality of adjustment holes 613 evenly arranged on the first slide plate 611, and a fixed strip plate 614 which is slidably arranged in the second slide plate 612 up and down to cooperate with the adjustment hole 613. The fixed strip plate 614 and the second slide plate 612 are provided with an extrusion spring 615 for providing an elastic force to the fixed strip plate 614 so that the fixed strip plate 614 can be stuck in the adjustment hole 613. When adjusting the length, the fixed strip plate 614 can be pressed to disengage from the adjustment hole 613, and then the second slide plate 612 can be pulled out, so that the guide unit can be more adaptable to the thickness of the concrete precast slab 1. When the height position of the guide roller 62 needs to be adjusted, it can be adjusted.

[0098] The coordination component 63 is arranged between the guide plate 61 and the vertical movable plate 411, and is used to drive the guide roller 62 to rotate and limit the two sides of the concrete precast panel 1 when the vertical movable mechanism 41 moves upward, thereby achieving a guiding effect and keeping the guide roller 62 in a horizontal state at all times during the rotation process.

[0099] Finally, the coordination component 63 comprises:

[0100] A rotating gear 631 is arranged at the rotation axis of the guide plate 61;

[0101] A rack plate 632 is fixedly disposed on the vertical movable plate 411 and is meshed with the rotating gear 631. When the vertical movable plate 411 moves upward, the rack plate 632 moves upward and drives the rotating gear 631 to rotate;

[0102] The angle limiting portion 633 is disposed between the guide roller 62 and the detection trolley 2, and is used to keep the guide roller 62 in a horizontal state when the guide plate 61 rotates;

[0103] Wherein, the angle limiting portion 633 includes:

[0104] An L-shaped limit rod 6331 is arranged between the guide roller 62 and the vertical movable plate 411. A first sliding rod 6332 and a second sliding rod 6333 are slidably arranged at both ends of the L-shaped limit rod 6331. The first sliding rod 6332 is fixed on the detection trolley 2. A limit plate 6334 is fixedly arranged vertically at one end of the second sliding rod 6333 away from the L-shaped limit rod 6331. The limit plate 6334 is sleeved on the rotation of the guide roller 62 at one end away from the second sliding rod 6333.

[0105] Two groups of elastic members 6335 are respectively arranged at the sliding connection between the first sliding rod 6332, the second sliding rod 6333 and the L-shaped limiting rod 6331, and are used to enable the first sliding rod 6332 and the second sliding rod 6333 to extend or shorten as the guide plate 61 rotates, and maintain the angle limit of the guide roller 62. The elastic member 6335 can be set as a spring.

[0106] It should be noted that the horizontal, vertical and vertical directions mentioned in the text refer to Figure 1 , 2 In the x, y, and z axis directions.

[0107] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0108] 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 device for detecting the flatness of an assembled prefabricated concrete slab after installation, comprising a prefabricated concrete slab (1) and a prefabricated concrete pavement formed therefrom, It is characterized in that The precast concrete pavement is provided with a detection device body, and the detection device body comprises: A detection vehicle (2) is arranged on the precast concrete pavement; A detection unit (3) is arranged on the detection vehicle (2) and is used to detect the flatness of each precast concrete slab (1) after laying; A moving unit (4) is arranged between the detection unit (3) and the detection trolley (2) and is used to drive the detection unit (3) to move so as to detect each precast concrete panel (1); A support unit (5) is arranged on the inspection trolley (2) and is used to support the inspection trolley (2) to a certain height when the inspection trolley (2) moves to the position of the precast concrete slab (1); Wherein, the detection unit (3) comprises: A bearing plate (31) is fixedly arranged at the lower end of the limiting slider (427); Four sets of pressure detection mechanisms (32) are symmetrically arranged on the bearing plate (31), and the horizontal placement position and horizontal plane deviation of the concrete precast panel (1) are determined by means of the pressure detection structures of the four sets of pressure detection mechanisms (32); Wherein, the pressure detection mechanism (32) comprises: A connecting rod (321), one end of which is fixedly arranged on the bearing plate (31), and the other end of which is rotatably provided with a rotating rod (322), wherein the rotating connection point between the connecting rod (321) and the rotating rod (322) is located in the middle of the rotating rod (322); A compression spring (323) is arranged at one end of the rotating rod (322), one end of which is connected to the rotating rod (322) and the other end of which is connected to the bearing plate (31); a rotating wheel (326) is arranged at one end of the rotating rod (322) away from the compression spring (323); a laser rangefinder (324) is arranged on the bearing plate (31) located in the middle of the compression spring (323) for measuring the distance between the bearing plate (31) and the rotating rod (322) at this position; The storage portion (325) is disposed between the connecting rod (321) and the rotating rod (322) and is used to store the rotating rod (322) when not in use.

2. A flatness detection device for prefabricated concrete panels after installation according to claim 1, It is characterized in that The mobile unit (4) comprises: A vertical moving mechanism (41) is arranged on the inspection trolley (2) and is used to drive the inspection unit (3) to move vertically downward so that the inspection unit (3) and the surface of the precast concrete slab (1) are in contact, thereby realizing the flatness inspection of the precast concrete slab (1); The transverse and longitudinal moving mechanism (42) is arranged on the vertical moving mechanism (41) and is used to drive the detection unit (3) to move in the transverse and longitudinal directions so as to detect each precast concrete panel (1).

3. The flatness detection device for prefabricated concrete panels after installation according to claim 2, It is characterized in that The vertical movement mechanism (41) comprises: A vertical movable plate (411) is arranged at the lower end of the detection vehicle (2) and is used to carry the horizontal and vertical movable mechanism (42) and the detection unit (3); At least one set of first electric telescopic rods (412) is arranged between the vertical movable plate (411) and the detection trolley (2) and is used to drive the vertical movable plate (411) to move up and down. The base end of the first electric telescopic rod (412) is fixedly arranged on the detection trolley (2), and the telescopic end is connected to the vertical movable plate (411).

4. The flatness detection device for prefabricated concrete panels after installation according to claim 2, It is characterized in that The transverse and longitudinal moving mechanism (42) comprises: Two slide slot strips (421) are symmetrically fixedly arranged on both sides of the vertical movable plate (411); Two T-shaped sliding blocks (422) are slidably disposed in the grooves of the sliding groove strips (421); A first threaded rod (423) is threadedly connected to the T-shaped slider (422), and a first motor (424) is disposed at the end of the first threaded rod (423) for driving the first threaded rod (423) to rotate; A connecting strip (425) is fixedly arranged on the T-shaped slider (422) and away from one end of the slide slot strip (421); a limit slide slot (426) is arranged on the connecting strip (425) in a vertical direction of the slide slot strip (421); a limit slide block (427) is slidably arranged on the limit slide slot (426); and the lower end of the limit slide block (427) is connected to the detection unit (3); The second threaded rod (428) is threadedly connected to the limiting slider (427), and a second motor (429) is disposed at one end of the second threaded rod (428) for driving the second threaded rod (428) to rotate.

5. The flatness detection device for prefabricated concrete panels after installation according to claim 1, It is characterized in that The storage portion (325) comprises: A storage plate (3251) has one end rotatably disposed on the connecting rod (321) and the other end is provided with a fixing hole (3252); a coordination plate (3253) is connected to the middle of the storage plate (3251); one end of the coordination plate (3253) is rotatably connected to the storage plate (3251) and the other end is rotatably disposed with the rotating rod (322); The elastic protrusion (3254) is arranged on the connecting rod (321) to cooperate with the fixing hole (3252) on the storage plate (3251) for use.

6. The flatness detection device for prefabricated concrete panels after installation according to claim 1, It is characterized in that The support unit (5) comprises: Four sets of second electric telescopic rods (51) are symmetrically arranged at the four corners of the detection vehicle (2); A level meter is arranged on the detection trolley (2) and is used to judge whether the entire detection trolley (2) is in a horizontal state after the four sets of second electric telescopic rods (51) fall to the base soil layer and support the detection trolley (2), so that the subsequent detection unit (3) can detect verticality more accurately.

7. The flatness detection device for prefabricated concrete panels after installation according to claim 3, It is characterized in that The detection trolley (2) is symmetrically provided with guide units (6) on both sides, which are used to enable the detection trolley (2) to move parallel in the longitudinal direction when the detection trolley (2) continues to move forward after detecting a set of data, so as to avoid position deviation when the trolley moves, causing data error; Wherein, the guiding unit (6) comprises: A guide plate (61) is rotatably arranged on both sides of the detection trolley (2), and a guide roller (62) is rotatably arranged at one end of the guide plate (61) away from the detection trolley (2); The coordination component (63) is arranged between the guide plate (61) and the vertical movable plate (411) and is used to drive the guide roller (62) to rotate and limit the two sides of the concrete precast plate (1) when the vertical movable mechanism (41) moves upward, thereby achieving a guiding function and always keeping the guide roller (62) in a horizontal state during the rotation process.

8. The flatness detection device for prefabricated concrete panels after installation according to claim 7, It is characterized in that The coordination component (63) comprises: A rotating gear (631) is arranged at the rotating axis of the guide plate (61); A rack plate (632) is fixedly arranged on the vertical movable plate (411) and meshed with the rotating gear (631). When the vertical movable plate (411) moves upward, the rack plate (632) moves upward accordingly and drives the rotating gear (631) to rotate; An angle limiting portion (633) is arranged between the guide roller (62) and the detection trolley (2) and is used to keep the guide roller (62) in a horizontal state when the guide plate (61) rotates; Wherein, the angle limiting portion (633) comprises: An L-shaped limit rod (6331) is arranged between the guide roller (62) and the vertical movable plate (411); a first sliding rod (6332) and a second sliding rod (6333) are slidably arranged at both ends of the L-shaped limit rod (6331); the first sliding rod (6332) is fixed on the detection trolley (2); a limit plate (6334) is fixedly arranged in a vertical direction at one end of the second sliding rod (6333) away from the L-shaped limit rod (6331); and the limit plate (6334) is sleeved on the rotation of the guide roller (62) at one end away from the second sliding rod (6333); Two sets of elastic members (6335) are respectively arranged at the sliding connection between the first sliding rod (6332), the second sliding rod (6333) and the L-shaped limiting rod (6331), and are used to enable the first sliding rod (6332) and the second sliding rod (6333) to extend or shorten as the guide plate (61) rotates, and to maintain the angle limit on the guide roller (62).

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