Bridge concrete structure real-time detection device based on laser measurement

Abstract

The invention relates to the technical field of laser measuring devices, and discloses a real-time bridge concrete structure detection device based on laser measurement, which comprises a laser measuring instrument and a base, and is characterized in that two supporting legs are hinged to the base; a balance assembly is arranged on the base, the laser measuring instrument is connected to the balance assembly, and the balance assembly can maintain the horizontal state of the laser measuring instrument through gravity; and climbing assemblies are arranged on the two supporting legs correspondingly and used for driving the two supporting legs and the base to climb on the inner wall of the hollow pier. Through the arrangement of the climbing assembly, after the two supporting legs are unfolded, the rubber crawler belt at the tail end of the supporting legs continuously applies pressure to the inner wall of the hollow pier, then the stability of contact between the rubber crawler belt and the inner wall of the hollow pier is guaranteed, and power provided during operation of the driving mechanism is converted into upward climbing driving force through circulating rotation of the rubber crawler belt; and stable climbing is achieved through friction force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser measuring device, and particularly relates to a bridge concrete structure real-time detection device based on laser measurement. BACKGROUND

[0002] The laser measuring device is a measuring device relying on the characteristics of high collimation and high precision of laser, integrates a laser ranging module, a displacement sensing unit and a data processing terminal, can quickly capture three-dimensional coordinates, geometric dimensions and deformation data of a target object in a non-contact manner, has the advantages of strong anti-interference ability, high measurement efficiency and stable data precision, and can meet real-time measurement requirements in complex engineering scenes. During the construction stage of the bridge concrete structure, the key parameters such as the beam cross-sectional size, the support installation position and the pier size need to be accurately measured to avoid the influence of construction deviation on the structure bearing performance. During the subsequent operation and maintenance stage, the concrete is prone to cracking and deformation due to factors such as vehicle load and environmental erosion, and the laser measuring device also needs to be regularly used to carry out real-time size measurement and deformation tracking to provide reliable data support for the safety control of the bridge throughout its life cycle.

[0003] However, the prior art has the following problems: Some existing bridges use hollow piers as piers, and the hollow piers also need to be regularly measured in size and tracked in deformation during the construction and later maintenance stages, which includes the measurement of the outer wall and the inner wall of the hollow pier. However, the existing laser measuring device is mostly erected on the ground by a support for measurement operation, and the inside of the hollow pier has a certain height. The conventional measurement method has a limited measurement range and is difficult to meet the measurement requirements of the higher area inside the hollow pier. The manual climbing measurement method has a high safety risk and cannot guarantee the levelness of the laser measuring device. SUMMARY

[0004] The purpose of the present application is to provide a bridge concrete structure real-time detection device based on laser measurement to overcome the defects of the existing laser measuring device that cannot meet the measurement requirements of the higher area inside the hollow pier, as described in detail below.

[0005] To achieve the above purpose, the present application provides the following technical solutions: The bridge concrete structure real-time detection device based on laser measurement provided by the present application comprises a laser measuring instrument, a base, two support legs hinged to the base, a balance assembly provided on the base, the laser measuring instrument connected to the balance assembly, the balance assembly capable of maintaining the horizontal state of the laser measuring instrument by gravity, and a climbing assembly provided on each of the two support legs for driving the two support legs and the base to climb inside the inner wall of the hollow pier.

[0006] As preferred, the balancing assembly comprises a hemispherical seat, an extension rod and a weight, the base is provided with an annular notch, the hemispherical seat is arranged on the annular notch of the base, the extension rod is connected to the bottom of the hemispherical seat, the weight is connected to the bottom end of the extension rod, and the top of the hemispherical seat is connected to the laser measuring instrument.

[0007] As preferred, the climbing assembly comprises a shell, a rubber track and a driving mechanism, the shell is hingedly connected to the end of the leg away from the base, the rubber track is installed in the shell through the driving mechanism, and the two rubber tracks can contact the inner wall of the hollow pier when the two legs are spread apart; the driving mechanism can drive the rubber track to move circularly.

[0008] As preferred, the driving mechanism comprises a motor, a driving roller and two driven rollers, the motor is installed on the shell, the driving roller and the two driven rollers are rotatably installed in the shell, the output end of the motor is connected to the driving roller, and the rubber track is sleeved on the driving roller and the two driven rollers.

[0009] As preferred, the driving mechanism further comprises a tensioning roller, two supports are slidably installed on the shell, the tensioning roller is rotatably installed on the two supports, springs are arranged between the supports and the shell, and the tensioning roller abuts against the inner wall of the rubber track.

[0010] As preferred, the climbing assembly further comprises a liquid box, the liquid box is installed on the top of the shell, a plurality of nozzles are installed on the bottom of the liquid box, the nozzles penetrate through the shell and are aligned with the top of the rubber track, an air cylinder is installed on the shell, an air pipe is connected between the air cylinder and the liquid box, the air cylinder is provided with an extension end, a sliding block is slidably connected to the shell, one end of the sliding block is connected to the extension end of the air cylinder, one end of the driven roller close to the sliding block is connected to a cam, a pin shaft is arranged on the cam, a flat groove is arranged on the sliding block, the pin shaft and the flat groove are slidably connected, and the cam drives the sliding block to move reciprocatingly through the sliding cooperation of the pin shaft and the flat groove when the cam rotates.

[0011] As preferred, the balancing assembly further comprises an anti-falling mechanism, the anti-falling mechanism comprises two slide rods, the two slide rods are vertically and slidably connected to the base, the top of each slide rod is connected to a pressing block, the two pressing blocks are mirror images, the outer wall of the hemispherical seat is connected to a flange, the two pressing blocks are located above the flange, springs are arranged between the bottom of each slide rod and the outer wall of the base, a pair of connecting rods are hingedly connected to each slide rod, two pairs of slide seats are slidably connected to the outer wall of the base, four slide seats are hingedly connected to four connecting rods respectively, the leg is provided with a hinge shaft for connecting the base, the hinge shaft of the leg is connected to a groove disc at two ends, a notch is arranged on the groove disc, rollers are arranged on the slide seats, four groove discs are in contact with the rollers of four slide seats respectively, and the rollers are embedded in the notches of the groove discs when the leg is vertical.

[0012] Preferably, the climbing assembly further comprises a limiting mechanism, the limiting mechanism comprises two mounting seats, both of which are mounted at the bottom of the base, a first ratchet block is slidably connected to the mounting seat, a supporting rod is connected to the first ratchet block, a ring frame is connected to the bottom of both supporting rods, the ring frame is located above the weight, a through slot is formed in the supporting leg, an optical rod is mounted in the through slot of the supporting leg, notches are respectively arranged at the top of both ends of the supporting rod, both optical rods are in contact with the notches at both ends of the supporting rod, the telescopic rod can be telescoped, the weight can drive both supporting rods to move upwards through the ring frame when the weight moves upwards, and both supporting legs can be spread apart through both optical rods when the supporting rod moves upwards.

[0013] Preferably, a second ratchet block is slidably mounted in the mounting seat, the first ratchet block and the second ratchet block are respectively provided with ratchets capable of being engaged in one direction, a spring is arranged between the second ratchet block and the inner wall of the mounting seat, a handle is connected to the side of the first ratchet block away from the second ratchet block, and the handle is in through sliding connection with the mounting seat.

[0014] The beneficial effects are that: 1. The bridge concrete structure real-time detection device based on laser measurement, through the arrangement of the balancing assembly, the central axes of the laser measuring instrument, the hemispherical seat, the telescopic rod and the weight always remain in a vertical state, thereby offsetting the inclination error generated by the base during the measurement process, ensuring the levelness of the laser measuring instrument and the data accuracy of the measurement; through the arrangement of the climbing assembly, the rubber track at the end of the two supporting legs continuously applies pressure to the inner wall of the hollow pier, thereby ensuring the stability of the contact between the rubber track and the inner wall of the hollow pier, the power provided by the driving mechanism is converted into upward climbing driving force through the circular rotation of the rubber track, the friction force is utilized to realize smooth climbing, the laser measuring instrument can continuously measure the inner wall size of different height sections of the hollow pier, manual transportation is not required, and the efficiency and safety of the measurement operation are improved.

[0015] 2. The bridge concrete structure real-time detection device based on laser measurement, through the arrangement of the anti-disengagement mechanism, after the two supporting legs are spread apart, the two sliding rods can drive the two pressing blocks to disengage from the flange, so that the balancing assembly can normally operate and does not affect the self-adaptive horizontal adjustment of the hemispherical seat, and after the two supporting legs are combined, the two sliding rods can be lowered to lock the flange, thereby fixing the flange and the hemispherical seat, and avoiding that the hemispherical seat is disengaged from the base during the transportation process.

[0016] 3. The bridge concrete structure real-time detection device based on laser measurement, through the setting of the limiting mechanism, when the supporting rod moves up, the two light rods can exert force on the two supporting legs, the two supporting legs swing upward, thereby achieving the technical effect of opening the supporting legs, the first ratchet block and the second ratchet block maintain the supporting rod at the current height through limiting cooperation, the supporting rod continuously exerts supporting force on the light rod on the supporting leg, thereby maintaining the opening state of the supporting leg, avoiding that the supporting leg is narrowed between the two supporting legs due to external force factors during the climbing process, thereby causing the rubber track to separate from the inner wall of the hollow pier, and causing a falling accident. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the balance assembly structure of the present application; Figure 3 is a schematic diagram of the hemispherical seat structure of the present application; Figure 4 is a schematic diagram of the climbing assembly structure of the present application; Figure 5 is a schematic diagram of the rubber track structure of the present application; Figure 6 is a schematic diagram of the air cylinder structure of the present application; Figure 7 is a schematic diagram of the liquid box structure of the present application; Figure 8 is a schematic diagram of the anti-dropping mechanism structure of the present application; Figure 9 is a schematic diagram of the groove disc structure of the present application; Figure 10 is a schematic diagram of the limiting mechanism structure of the present application; Figure 11 is a schematic diagram of the second ratchet block structure of the present application.

[0019] The following is an explanation of the reference signs: 1, base; 2, laser measuring instrument; 3, supporting leg; 4, climbing assembly; 41, shell; 42, motor; 43, drive roller; 44, driven roller; 45, tensioning roller; 46, rubber track; 47, liquid box; 48, spray head; 49, air cylinder; 410, sliding block; 411, cam; 5, balancing assembly; 51, half ball seat; 52, telescopic rod; 53, weight; 6, anti-off mechanism; 61, flange; 62, sliding rod; 63, pressing block; 64, sliding seat; 65, connecting rod; 66, groove disc; 7, limiting mechanism; 71, mounting seat; 72, first ratchet block; 73, supporting rod; 74, light rod; 75, ring frame; 76, second ratchet block; 77, handle. DETAILED DESCRIPTION

[0020] To make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0021] One embodiment of the present application is: Please refer to Figure 1 - Figure 3 A bridge concrete structure real-time detection device based on laser measurement, comprising a laser measuring instrument 2, further comprising a base 1, two supporting legs 3 are hinged on the base 1, and the two supporting legs 3 and the base 1 form a supporting frame for supporting the laser measuring instrument 2, two laser measuring probes are arranged on the laser measuring instrument 2, which can meet the requirements of conventional construction measurement operation, and can also measure the size of the inner wall of the hollow pier by cooperation of the two probes, so as to serve as a data reference for acceptance and subsequent monitoring of the hollow pier concrete structure of the bridge, the laser measuring instrument 2 is a prior art, and its specific structure and working principle will not be described here; a balancing assembly 5 is arranged on the base 1, and the laser measuring instrument 2 is connected to the balancing assembly 5, the balancing assembly 5 can maintain the horizontal state of the laser measuring instrument 2 by gravity, the laser measuring instrument 2 has certain requirements for the levelness during operation, and the balancing assembly 5 is used to maintain the levelness of the laser measuring instrument 2, thereby ensuring the measurement accuracy; a climbing assembly 4 is arranged on each of the two supporting legs 3, which is used to drive the two supporting legs 3 and the base 1 to climb on the inner wall of the hollow pier, after the two supporting legs 3 are opened, they can serve as a supporting frame for conventional measurement operation, when measuring the inner wall of the hollow pier, the two supporting legs 3 are first opened, and the climbing assemblies 4 on the two supporting legs 3 are respectively abutted against the inner wall of the hollow pier, at this time, the two supporting legs 3 are distributed in an eight-character shape, and form effective support by taking the inner wall of the hollow pier as a supporting point, after the climbing assemblies 4 are started, the two supporting legs 3, the base 1, the balancing assembly 5 and the laser measuring instrument 2 are driven to climb upward along the inner wall of the hollow pier, thereby completing the measurement operation of the inner wall of the hollow pier.

[0022] Further, the balance assembly 5 comprises a hemispherical seat 51, an extension rod 52 and a heavy hammer 53, the base 1 is provided with an annular notch, the hemispherical seat 51 is arranged on the annular notch of the base 1, the extension rod 52 is connected to the bottom of the hemispherical seat 51, the heavy hammer 53 is connected to the bottom end of the extension rod 52, and the top of the hemispherical seat 51 is connected with the laser measuring instrument 2; the hemispherical seat 51 and the annular notch of the base 1 adopt spherical surface contact design, which can realize omnidirectional swing adjustment and ensure that the laser measuring instrument 2 can adaptively adjust the posture following the direction of gravity, and in the operation process, the heavy hammer 53 always keeps vertical downward by using its own gravity, the heavy hammer 53 forms a continuous traction positioning force on the hemispherical seat 51 through the extension rod 52, so that the central axis of the laser measuring instrument 2, the hemispherical seat 51, the extension rod 52 and the heavy hammer 53 always keeps vertical state, thereby offsetting the inclination error of the base 1 in the measurement process, and ensuring the levelness of the laser measuring instrument 2 and the data accuracy of the measurement.

[0023] On the basis of the above-mentioned embodiments, another embodiment of the present application is: Please refer to Figure 3 - Figure 7 The climbing assembly 4 comprises a shell 41, rubber tracks 46 and a driving mechanism, the shell 41 is hinged to one end of the support leg 3 away from the base 1, the rubber tracks 46 are installed in the shell 41 through the driving mechanism, and the two rubber tracks 46 can contact the inner wall of the hollow pier after the two support legs 3 are spread apart, the driving mechanism can drive the rubber tracks 46 to move in a cycle; the hinge structure of the shell 41 and the support leg 3 adopts a damping hinge design, so that the rubber tracks 46 can adaptively adjust the fitting angle according to the curvature of the inner wall of the hollow pier, ensure that the rubber tracks 46 form the maximum contact area with the inner wall, and thereby improve the friction force bearing capacity, the rubber tracks 46 are made of high-elasticity wear-resistant rubber material, and the surface is provided with anti-skid lines, which not only enhances the static friction force with the inner wall of the hollow pier, but also avoids scratching damage to the inner wall of the hollow pier, when the two rubber tracks 46 contact the inner wall of the hollow pier, the two support legs 3 are distributed in a spread-eagle shape at this time, and the two support legs 3 can match the inner walls of hollow piers with various diameters, the larger the inner diameter, the greater the spread of the two support legs 3, and the two support legs 3 form effective support after being spread apart, the gravity of the base 1, the balance assembly 5 and the laser measuring instrument 2 is used to continuously press the area between the two support legs 3 downward, thereby continuously press the rubber tracks 46 at the ends of the two support legs 3 against the inner wall of the hollow pier, and thereby ensure the stability of the contact between the rubber tracks 46 and the inner wall of the hollow pier, the power provided by the driving mechanism is converted into upward climbing driving force through the cycle rotation of the rubber tracks 46, the friction force is used to realize smooth climbing, the laser measuring instrument 2 can continuously measure the size of the inner wall of the hollow pier at different height sections, manual carrying measurement is not needed, and the efficiency and safety of the measurement operation are improved.

[0024] In addition, the driving mechanism comprises a motor 42, a driving roller 43 and two driven rollers 44, the motor 42 is installed on the shell 41, the driving roller 43 and the two driven rollers 44 are rotatably installed in the shell 41, the output end of the motor 42 is connected with the driving roller 43, and the rubber track 46 is sleeved on the driving roller 43 and the two driven rollers 44; the inner wall of the rubber track 46 is provided with a tooth groove, the surfaces of the driving roller 43 and the driven rollers 44 are provided with anti-skid tooth patterns, and the tooth groove in the inner wall of the rubber track 46 is meshed with the anti-skid tooth patterns, so that the stability of power transmission is ensured, slipping is avoided, the motor 42 drives the driving roller 43 to rotate after being started, the driving roller 43 drives the rubber track 46 to move circularly after rotating, the two driven rollers 44 passively rotate with the rubber track 46, the two driven rollers 44 play a guiding role and a supporting role, the driving roller 43 and the two driven rollers 44 realize the stable circular movement of the rubber track 46 through cooperation, and continuous and stable power is provided for the climbing operation.

[0025] In addition, the driving mechanism further comprises a tensioning roller 45, two supports are slidably installed on the shell 41, the tensioning roller 45 is rotatably installed on the two supports, springs are arranged between the supports and the shell 41, and the tensioning roller 45 abuts against the inner wall of the rubber track 46; the springs between the supports and the shell 41 always apply elastic force to the supports, so that the tensioning roller 45 between the two supports always abuts against the inner wall of the rubber track 46 and applies tensioning force; when the rubber track 46 is relaxed, the elastic force of the springs automatically pushes the supports to drive the tensioning roller 45 to tension the rubber track 46, the relaxation amount of the rubber track 46 is compensated, the stability of transmission between the rubber track 46 and the driving roller 43 and the driven rollers 44 is ensured, and slipping of the rubber track 46 is avoided.

[0026] It is worth noting that the climbing assembly 4 further comprises a liquid box 47 mounted on the top of the shell 41, a plurality of spray heads 48 are mounted on the bottom of the liquid box 47, the spray heads 48 penetrate through the shell 41 and are aligned with the top of the rubber track 46, an air cylinder 49 is mounted on the shell 41, an air pipe is connected between the air cylinder 49 and the liquid box 47, the air cylinder 49 is provided with an extension end, a sliding block 410 is slidingly connected to the shell 41 and connected with the extension end of the air cylinder 49, one end of the driven roller 44 close to the sliding block 410 is connected with a cam 411, the cam 411 is provided with a pin shaft, the sliding block 410 is provided with a flat groove, the pin shaft is slidingly connected with the flat groove, and the cam 411 drives the sliding block 410 to reciprocate through the sliding cooperation of the pin shaft and the flat groove when the cam 411 rotates; the liquid box 47 is filled with antiskid tackifier, the plurality of spray heads 48 are arranged in a linear array, the spray heads 48 are atomizing spray heads, the driven roller 44 rotates to synchronously drive the cam 411 to rotate, the pin shaft deviates from the rotation center of the cam 411, and the pin shaft reciprocates in the flat groove of the sliding block 410 when the pin shaft rotates with the cam 411, so that the pin shaft applies a force to the sliding block 410 through the flat groove, and then pushes the sliding block 410 to move linearly, and the sliding block 410 drives the extension end of the air cylinder 49 to repeatedly perform the actions of pumping and pressing when the sliding block 410 reciprocates, so that the air cylinder 49 continuously injects air into the liquid box 47 through the air pipe, the antiskid tackifier in the liquid box 47 is atomized and sprayed out through the spray heads 48, and is uniformly attached to the surface of the rubber track 46, so that the antiskid tackifier sprayed out by the plurality of spray heads 48 can continuously cover the contact surface between the rubber track 46 and the inner wall of the hollow pier when the rubber track 46 circulates, thereby enhancing the friction between the rubber track 46 and the inner wall of the hollow pier, effectively preventing the rubber track 46 from slipping between the rubber track 46 and the inner wall of the hollow pier during climbing, and further improving the safety and stability of the climbing process.

[0027] On the basis of the above-mentioned embodiments, another embodiment of the present application is: Please refer to Figure 1 , Figure 8 , Figure 9The balance assembly 5 further comprises a anti-falling mechanism 6, the anti-falling mechanism 6 comprises two slide rods 62, both of which are vertically and slidingly connected to the base 1, and a pressing block 63 is connected to the top of each slide rod 62, both pressing blocks 63 are mirror image arranged, a flange 61 is connected to the outer wall of the hemispherical seat 51, both pressing blocks 63 are above the flange 61, a spring is arranged between the bottom of each slide rod 62 and the outer wall of the base 1, a pair of connecting rods 65 are hinged to each slide rod 62, two pairs of slide blocks 64 are slidingly connected to the outer wall of the base 1, and each slide block 64 is hinged to a connecting rod 65, the supporting leg 3 is provided with a hinge shaft for connecting the base 1, and a groove disc 66 is connected to the both ends of the hinge shaft of the supporting leg 3, a notch is arranged on the groove disc 66, and a roller is arranged on each slide block 64, and the four groove discs 66 are in contact with the rollers of the four slide blocks 64, and the rollers are embedded in the notches of the groove discs 66 when the supporting leg 3 is vertical; the flange 61 is annular, located on the outer wall of the hemispherical seat 51 and above the top surface of the base 1, when the supporting leg 3 is in a vertical state, the supporting leg 3 is in a retracted state and not in a working state, at this time, the four rollers are embedded in the notches of the four groove discs 66, the two slide rods 62 are in the lowest position due to the pulling force of the spring, the pressing blocks 63 on the slide rods 62 press the top surface of the flange 61, and the flange 61 and the hemispherical seat 51 are fixed and stable, so that the hemispherical seat 51 is prevented from falling off during the carrying of the supporting leg 3, when the supporting leg 3 is opened, the hinge shaft is driven to rotate by the supporting leg 3, the groove disc 66 rotates with the hinge shaft of the supporting leg 3, so that the notches are gradually separated from the rollers when the groove disc 66 rotates, the rollers gradually separate from the notches along the edge of the notches and come into contact with the edge of the outer wall of the groove disc 66, in this process, the edge of the notches applies a force to the rollers, so that the slide blocks 64 move away from the groove disc 66, for example, when the two slide blocks 64 hinged to one pair of connecting rods 65 move away from the groove disc 66, the two slide blocks 64 move close to each other and the two connecting rods 65 drive the slide rods 62 to move upward, and the slide rods 62 drive the pressing blocks 63 to move upward and away from the flange 61, so that the two slide rods 62 drive the two pressing blocks 63 to move away from the flange 61 when the two supporting legs 3 are opened, so that the balance assembly 5 can normally operate and the self-adaptive horizontal adjustment of the hemispherical seat 51 is not affected, and when the two supporting legs 3 are combined, the two slide rods 62 can move downward to lock the flange 61, so as to fix the flange 61 and the hemispherical seat 51, and prevent the hemispherical seat 51 from separating from the base 1 during the carrying process.

[0028] On the basis of the above-mentioned embodiment, another embodiment of the present application is: Please refer to Figure 1 、 Figure 10 、 Figure 11The climbing assembly 4 further comprises a limiting mechanism 7, the limiting mechanism 7 comprises two mounting seats 71, both of which are mounted at the bottom of the base 1, a first ratchet block 72 is slidingly connected to the mounting seat 71, a supporting rod 73 is connected to the first ratchet block 72, the bottom of both supporting rods 73 is connected to a ring frame 75, the ring frame 75 is located above the weight 53, a through slot is formed in the supporting leg 3, an optical rod 74 is mounted in the through slot of the supporting leg 3, both ends of the supporting rod 73 are provided with notches, both optical rods 74 are in contact with the notches of both ends of the supporting rod 73, the telescopic rod 52 is telescopic, the weight 53 can drive both supporting rods 73 to move up through the ring frame 75 when the weight 53 moves up, the supporting rod 73 can drive both supporting legs 3 to open through both optical rods 74 when the supporting rod 73 moves up; the telescopic rod 52 is stretched to the longest state by the gravity of the weight 53 in the normal state, at this time, the staff can hold the weight 53 up by a certain distance from bottom to top, when the supporting legs 3 are opened, one staff first lifts the base 1, and the other staff holds the weight 53 up, the weight 53 contacts the ring frame 75 and drives the ring frame 75 to move up when the weight 53 moves up, the ring frame 75 drives both supporting rods 73 to move up when the ring frame 75 moves up, and the notches at both ends of the supporting rod 73 are in contact with both optical rods 74, so that the supporting rod 73 can exert a force on both supporting legs 3 through both optical rods 74 when the supporting rod 73 moves up, so that both supporting legs 3 swing upward, thereby achieving the technical effect of opening the supporting legs 3, and the swinging actions of both supporting legs 3 keep high synchronism, when the rubber track 46 contacts the inner wall of the hollow pier, the weight 53 and the base 1 are loosened, the weight 53 and the base 1 fall, so that both supporting legs 3 form stable support through the rubber track 46, avoiding that manual opening of both supporting legs 3 causes inconsistent swinging amplitudes of both supporting legs 3 and causes the final support structure to be skewed.

[0029] It is worth mentioning that the second ratchet block 76 is slidably installed inside the mounting seat 71, the first ratchet block 72 and the second ratchet block 76 are respectively provided with ratchets capable of one-way engagement, a spring is arranged between the second ratchet block 76 and the inner wall of the mounting seat 71, the handle 77 is connected to the side of the first ratchet block 72 away from the second ratchet block 76, and the handle 77 is slidably connected with the mounting seat 71; the ratchets of the first ratchet block 72 and the second ratchet block 76 are designed to be one-way inclined, only allowing the first ratchet block 72 to slide upward and limiting its downward movement, forming a one-way limiting locking function, the spring between the second ratchet block 76 and the inner wall of the mounting seat 71 always exerts a spring force on the second ratchet block 76, so that the second ratchet block 76 always adheres to the first ratchet block 72, ensuring that the ratchets of the two are closely engaged, when the support rod 73 is moved upward, the support rod 73 drives the first ratchet block 72 to slide upward on the mounting seat 71, the ratchet of the first ratchet block 72 slides upward along the ratchet of the second ratchet block 76, and the second ratchet block 76 constantly rebounds by the spring force and ensures the engagement of the ratchets, when the supporting legs 3 are opened to the position, the first ratchet block 72 cannot move downward due to the one-way limiting of the second ratchet block 76, thereby maintaining the support rod 73 at the current height, so that the support rod 73 continuously exerts a supporting force on the light rod 74 on the supporting leg 3, thereby maintaining the opening state of the supporting leg 3, avoiding that the supporting leg 3 reduces the included angle between the two supporting legs 3 due to external factors during climbing, thereby causing the rubber track 46 to separate from the inner wall of the hollow pier, causing a falling accident, when it is necessary to retract the supporting leg 3, the two handles 77 are pulled outward, the handles 77 are arranged in a U shape, the two ends of the handle 77 are connected with the second ratchet block 76, and the handle 77 can drive the second ratchet block 76 to disengage from the first ratchet block 72 when being pulled outward, so that the ratchets disengage, the one-way locking is released, at this time, the support rod 73 is reset by gravity and moves downward, and the two supporting legs 3 are combined, so that the operation is more convenient.

[0030] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A real-time detection device for bridge concrete structures based on laser measurement, comprising a laser measuring instrument (2), characterized in that: It also includes a base (1) on which two legs (3) are hinged; The base (1) is provided with a balancing component (5), and the laser measuring instrument (2) is connected to the balancing component (5). The balancing component (5) can use gravity to maintain the horizontal state of the laser measuring instrument (2). Each of the two outriggers (3) is provided with a climbing assembly (4) for driving the two outriggers (3) and the base (1) to climb on the inner wall of the hollow pier.

2. The real-time detection device for bridge concrete structures based on laser measurement according to claim 1, characterized in that: The balancing assembly (5) includes a hemispherical seat (51), a telescopic rod (52), and a counterweight (53). The base (1) is provided with an annular groove. The hemispherical seat (51) is placed on the annular groove of the base (1). The telescopic rod (52) is connected to the bottom of the hemispherical seat (51). The counterweight (53) is connected to the bottom end of the telescopic rod (52). The top of the hemispherical seat (51) is connected to the laser measuring instrument (2).

3. The real-time detection device for bridge concrete structures based on laser measurement according to claim 2, characterized in that: The climbing assembly (4) includes a housing (41), rubber tracks (46) and a drive mechanism. The housing (41) is hinged to the end of the outrigger (3) away from the base (1). The rubber tracks (46) are installed inside the housing (41) through the drive mechanism. When the two outriggers (3) are opened, the two rubber tracks (46) can contact the inner wall of the hollow pier. The drive mechanism can drive the rubber tracks (46) to perform cyclical movement.

4. The real-time detection device for bridge concrete structures based on laser measurement according to claim 3, characterized in that: The drive mechanism includes a motor (42), a drive roller (43) and two driven rollers (44). The motor (42) is mounted on the housing (41). The drive roller (43) and the two driven rollers (44) are rotatably mounted inside the housing (41). The output end of the motor (42) is connected to the drive roller (43). The rubber track (46) is sleeved on the drive roller (43) and the two driven rollers (44).

5. A real-time detection device for bridge concrete structures based on laser measurement according to claim 4, characterized in that: The drive mechanism also includes a tension roller (45), two supports are slidably mounted on the housing (41), the tension roller (45) is rotatably mounted on the two supports, a spring is provided between the supports and the housing (41), and the tension roller (45) abuts against the inner wall of the rubber track (46).

6. The real-time detection device for bridge concrete structures based on laser measurement according to claim 4, characterized in that: The climbing assembly (4) also includes a liquid box (47), which is installed on the top of the housing (41). Multiple nozzles (48) are installed at the bottom of the liquid box (47). The nozzles (48) penetrate the housing (41) and are aligned with the top of the rubber track (46). An air cylinder (49) is installed on the housing (41). An air pipe is connected between the air cylinder (49) and the liquid box (47). The air cylinder (49) has a telescopic end. A slider (410) is slidably connected to the housing (41). The slider (410) is connected to the telescopic end of the air cylinder (49). One of the driven rollers (44) is connected to a cam (411) near the end of the slider (410). The cam (411) has a pin. The slider (410) has a flat groove. The pin is slidably connected to the flat groove. When the cam (411) rotates, it drives the slider (410) to move back and forth through the sliding cooperation between the pin and the flat groove.

7. A real-time detection device for bridge concrete structures based on laser measurement according to claim 2, characterized in that: The balancing assembly (5) further includes an anti-detachment mechanism (6), which includes two slide rods (62). Both slide rods (62) are vertically slidably connected to the base (1). The top of each slide rod (62) is connected to a pressure block (63). The two pressure blocks (63) are mirror images of each other. The outer wall of the hemispherical seat (51) is connected to a flange (61). The two pressure blocks (63) are located above the flange (61). The bottom of each slide rod (62) is connected to the base. A spring is provided between the outer walls of the base (1). A pair of connecting rods (65) are hinged on the slide rod (62). Two pairs of slide seats (64) are slidably connected to the outer wall of the base (1). The four slide seats (64) are respectively hinged to the four connecting rods (65). The support leg (3) is provided with a hinge shaft for connecting the base (1). The two ends of the hinge shaft of the support leg (3) are respectively connected to the grooved plate (66). The four grooved plates (66) are respectively in contact with the rollers of the four slide seats (64).

8. A real-time detection device for bridge concrete structures based on laser measurement according to claim 3, characterized in that: The climbing assembly (4) also includes a limiting mechanism (7), which includes two mounting seats (71). Both mounting seats (71) are installed at the bottom of the base (1). A first ratchet block (72) is slidably connected to the mounting seat (71). A support rod (73) is connected to the first ratchet block (72). A ring frame (75) is connected to the bottom of the two support rods (73). The ring frame (75) is located above the counterweight (53). A through groove is opened on the support leg (3). A smooth rod (74) is installed in the through groove of the support leg (3).

9. A real-time detection device for bridge concrete structures based on laser measurement according to claim 8, characterized in that: The mounting base (71) has a second ratchet block (76) slidably mounted inside. The first ratchet block (72) and the second ratchet block (76) are respectively provided with ratchet teeth that can engage in one direction. A spring is provided between the second ratchet block (76) and the inner wall of the mounting base (71). A handle (77) is connected to the side of the first ratchet block (72) away from the second ratchet block (76). The handle (77) is slidably connected to the mounting base (71).

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