Concrete stress sensor

Abstract

The invention belongs to the technical field of sensing, and particularly relates to a concrete stress sensor which comprises a remote control car body, one side of the upper end of the remote control car body is fixedly connected with a first support, one side of the upper end of the first support is provided with a data acquisition instrument, and the data acquisition instrument is electrically connected with a strain gauge. Two guide rods are slidably connected to one side of the remote control car body, a pressing disc is fixedly connected to the lower ends of the guide rods, a hydraulic cylinder is fixedly connected to one side of the upper end of the remote control car body, the piston end of the hydraulic cylinder is fixedly connected with one side of the upper end of the pressing disc, and a placement type unqualified area marking assembly is further arranged on the remote control car body. According to the invention, the placement type unqualified area marking assembly is utilized, and when an area with an unqualified stress value is detected, a marking block is placed in the area. After the detection work is finished, an operator can quickly position all areas with unqualified stress values by observing the position of the marking block, and then repair work is carried out.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sensing, and particularly relates to a concrete stress sensor. BACKGROUND

[0002] Concrete is a widely used engineering material, and with the development of building technology, the performance requirements for concrete are higher and higher. The stress state of concrete directly determines the structural safety and durability. Through stress detection of concrete, the internal stress state of concrete can be quantified, thereby providing a basis for structural safety evaluation, design verification and disease repair.

[0003] In the prior art, when the hardened concrete is detected for stress, one way is to first paste a strain gauge on the surface of the concrete, then to apply pressure to the concrete structure to simulate the actual load (such as the weight of vehicles and equipment), to measure the strain on the surface of the concrete, and then to convert the stress on the surface of the concrete by estimating the elastic modulus of the concrete material. However, in general, in order to more accurately obtain the stress of a certain area of concrete, multi-point detection is selected. When the stress value of a certain place of concrete is unqualified, it needs to be repaired. After the multi-point detection is completed, the operator may not be able to accurately locate all the areas with unqualified stress values, and the repair work of the concrete may be affected due to the omission. SUMMARY

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the application provides a concrete stress sensor.

[0005] The technical scheme adopted by the application to solve the technical problems is: a concrete stress sensor, comprising a remote control vehicle body, a support one is fixedly connected to one side of the upper end of the remote control vehicle body, a data acquisition instrument is arranged on one side of the upper end of the support one, a strain gauge is electrically connected to the data acquisition instrument, two guide rods are slidably connected to one side of the remote control vehicle body, a pressure plate is fixedly connected to the lower end of the guide rods, a hydraulic cylinder is fixedly connected to one side of the upper end of the remote control vehicle body, the piston end of the hydraulic cylinder is fixedly connected to one side of the upper end of the pressure plate, and a placement type unqualified area marking assembly is further arranged on the remote control vehicle body; The placement type unqualified area marking assembly comprises a support two fixedly connected to one side of the upper end of the remote control vehicle body, a lead screw guide rail two is installed on the support two, a storage barrel is slidably arranged on the lead screw guide rail two, and a plurality of marking blocks are longitudinally arranged in the storage barrel.

[0006] Preferably, one side of one end of the support is fixedly connected with a cylinder one, the piston end of the cylinder one is fixedly connected with a hard pipe two, the lower end of the hard pipe two is provided with a suction disc two, the piston end of the cylinder one is fixedly connected with a gas pump two, and one end of the gas pump two is communicated with the hard pipe two.

[0007] Preferably, one side of the support one is fixedly connected with a glue tank, one side of the bottom of the glue tank is communicated and fixedly connected with a glue pump, the glue outlet end of the glue pump is communicated with a connecting pipe, one end of the connecting pipe penetrates through the support one and is communicated with a glue outlet pipe, the bottom of the glue outlet pipe is provided with a plurality of glue outlets, one side of the support one is fixedly connected with a cylinder seven, and the piston end of the cylinder seven is fixedly connected with one side of the glue roller.

[0008] Preferably, one side of the lower end of the storage barrel is inserted and slidably connected with a stopper, and one side of the lower end of the storage barrel is fixedly connected with a cylinder three.

[0009] Preferably, the remote control vehicle body is further provided with a movement prevention reinforcing assembly; The movement prevention reinforcing assembly comprises a support three fixedly connected to one side of the upper end of the remote control vehicle body, a rotating roller rotatably arranged on one side of the upper end of the support three, a rubber belt roll sleeved on the rotating roller, a support four fixedly connected to one side of the upper end of the remote control vehicle body, a cutting knife slidably connected to one side of the upper end of the support four, a motor four fixedly connected to one side of the upper end of the support three, and the output end of the motor four is fixedly connected with the rotating roller.

[0010] Preferably, a gear is rotatably arranged on one side of the upper end of the support three, the gear is intermeshed with the tooth block on the rack rod, a motor three is fixedly connected to one side of the upper end of the support three, the output end of the motor three is fixedly connected with the gear, a clamping jaw cylinder is fixedly connected to one side of the lower end of the rack rod, and a cylinder five is fixedly connected to one side of the upper end of the support four.

[0011] Preferably, a guide rail plate is fixedly connected to one side of the upper end of the remote control vehicle body, a lead screw guide rail one is mounted on one side of the guide rail plate, a sliding block is slidably arranged on the lead screw guide rail one, a cylinder two is fixedly connected to one side of the upper end surface of the sliding block, the piston end of the cylinder two is fixedly connected with a lifting plate, a turnover plate is rotatably arranged on one side of the lower end of the lifting plate, a hard pipe one is fixedly connected to one side of the lower end of the turnover plate, and suction discs one are arranged at the pipe openings on both sides of the hard pipe one.

[0012] Preferably, a motor one is fixedly connected to one side of the lower end of the lifting plate, the output end of the motor one is fixedly connected with one end of the turnover plate, a gas pump one is fixedly connected to one side of the lower end surface of the turnover plate, and one side of the gas pump one is communicated with the hard pipe one.

[0013] Preferably, the turnover plate is further provided with a collection auxiliary assembly. The collection auxiliary assembly comprises a lifting rod slidingly connected to a chute at one side of the turnover plate, a tapered cylinder is fixedly connected to one side of the lower end of the lifting rod, lifting rods are rotatably arranged at both sides of the inner cavity of the tapered cylinder, through holes are arranged at both sides of the tapered cylinder for the lifting rods to pass through, a push ring is fitted to the outer wall of the tapered cylinder, clamping rods are slidingly connected to both sides of the upper end surface of the turnover plate, a collection box is fixedly connected to one side of the main body of the remote control vehicle, and two collection grooves are arranged on the collection box.

[0014] Preferably, an electric push rod is fixedly connected to one side of the turnover plate, the piston end of the electric push rod is fixedly connected to one side of the push ring, electric motors two are fixedly connected to both sides of the inner cavity of the tapered cylinder, the output end of the electric motor two is fixedly connected to one side of the lifting rod, a gas cylinder six is fixedly connected to one side of the lower end of the lifting rod, the piston end of the gas cylinder six is fixedly connected to one side of the push ring, a gas cylinder four is fixedly connected to one side of the upper end surface of the turnover plate, the piston end of the gas cylinder four is fixedly connected to a connecting block, connecting rods are rotatably arranged at both sides of the connecting block, and one end of the connecting rod is rotatably connected to one end of the clamping rod.

[0015] The beneficial effects of the present application are as follows: 1. The concrete stress sensor disclosed in the present application utilizes a placement type unqualified area marking assembly. Whenever an area with unqualified stress value is detected, a marking block is placed there. After the detection work is completed, the operator can quickly locate all areas with unqualified stress value by observing the position of the marking block, and then perform repair work. Thus, the omission situation is avoided, and the repair efficiency is improved.

[0016] 2. The concrete stress sensor disclosed in the present application utilizes a movement prevention reinforcing assembly. The marking block placed on the road surface is adhered by the adhesive tape, and the marking block is not easy to deviate due to excessive wind force or accidental collision with external objects. Thus, the stability of the marking block is improved to a certain extent, and the accuracy of the marking is further ensured.

[0017] 3. The concrete stress sensor disclosed in the present application utilizes a collection auxiliary assembly. The marking block adhered on the road surface by the adhesive tape can be automatically recycled. The process of manually recycling the marking block by the operator is saved, which is more convenient and labor-saving. In addition, the adhesive tape can be separated from the marking block during the recycling process, so that the marking block can be reused. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below with reference to the drawings.

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the local three-dimensional structure of the main body of the remote control vehicle; Figure 3is a schematic view of the structure of the turnover plate; Figure 4 is Figure 3 is a partial enlarged view of A in the middle; Figure 5 is Figure 3 is a partial enlarged view of B in the middle; Figure 6 is a schematic view of the structure of the bracket three; Figure 7 is a schematic view of the structure of the clamping rod; Figure 8 is Figure 7 is a partial enlarged view of C in the middle; Figure 9 is a schematic view of the structure of the bracket one; Figure 10 is a schematic view of the structure of the data acquisition instrument; Figure 11 is a schematic view of the structure of the glue roller; Figure 12 is a schematic view of the structure of the collection box; Figure 13 is a schematic view of the structure of the marker block.

[0020] In the figure: 1, remote control vehicle body; 2, storage cylinder; 3, bracket one; 4, cylinder one; 5, pressure plate; 6, marker block; 7, hydraulic cylinder; 8, guide rod; 9, bracket two; 10, bracket three; 11, rotating roller; 12, adhesive tape roll; 13, cylinder two; 14, screw guide rail one; 15, screw guide rail two; 16, cylinder three; 17, stop block; 18, guide rail plate; 19, sliding block; 20, lifting plate; 21, turnover plate; 22, hard pipe one; 23, suction cup one; 24, collection box; 25, clamping rod; 26, bracket four; 27, rack rod; 28, clamping jaw cylinder; 29, motor one; 30, air pump one; 31, cylinder four; 32, connecting block; 33, connecting rod; 34, air pump two; 35, cutting knife; 36, hard pipe two; 37, suction cup two; 38, strain gauge; 39, glue tank; 40, glue pump; 41, connecting pipe; 42, glue outlet pipe; 43, cylinder seven; 44, glue roller; 45, electric push rod; 46, cylinder five; 47, lifting rod; 48, push ring; 49, cylinder six; 50, conical cylinder; 51, lifting rod; 52, motor two; 53, data acquisition instrument; 54, gear; 55, motor three; 56, motor four. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0022] Please refer to Figures 1-13 The present application provides a technical solution: a concrete stress sensor, comprising a remote control vehicle body 1, a support 1 is fixedly connected to one side of the upper end of the remote control vehicle body 1, a data acquisition instrument 53 is arranged on one side of the upper end of the support 1, a strain gauge 38 is electrically connected to the data acquisition instrument 53, two guide rods 8 are slidingly connected to one side of the remote control vehicle body 1, a pressure plate 5 is fixedly connected to the lower end of the guide rod 8, a hydraulic cylinder 7 is fixedly connected to one side of the upper end of the remote control vehicle body 1, the piston end of the hydraulic cylinder 7 is fixedly connected to one side of the upper end of the pressure plate 5, and a placement type unqualified area marking assembly is further arranged on the remote control vehicle body 1. The placement type unqualified area marking assembly comprises a support 9 fixedly connected to one side of the upper end of the remote control vehicle body 1, a screw rod guide rail 15 is installed on the support 9, a storage barrel 2 is slidingly arranged on the screw rod guide rail 15, and a plurality of marking blocks 6 are longitudinally arranged and placed in the storage barrel 2. A circular through hole is arranged in the middle of the marking block 6.

[0023] In this embodiment, as shown in Figure 1 , Figure 2 , Figures 9-11 The upper end of the support 1 is fixedly connected to a cylinder 4, the piston end of the cylinder 4 is fixedly connected to a hard pipe 36, the lower end of the hard pipe 36 is provided with a suction disc 37, the piston end of the cylinder 4 is fixedly connected to a gas pump 34, and the gas inlet end of the gas pump 34 is in communication with one end of the hard pipe 36.

[0024] The side of the support 1 is fixedly connected to a glue tank 39, the bottom side of the glue tank 39 is in communication and fixedly connected to a glue pump 40, the glue outlet end of the glue pump 40 is in communication with a connecting pipe 41, one end of the connecting pipe 41 penetrates through the support 1 and is in communication with a glue outlet pipe 42, a plurality of glue outlets are arranged on the bottom of the glue outlet pipe 42, the side of the support 1 is fixedly connected to a cylinder 43, and the piston end of the cylinder 43 is fixedly connected to one side of a glue roller 44.

[0025] The lower end of the storage barrel 2 is inserted and slidingly connected to a stop block 17, the lower end of the storage barrel 2 is fixedly connected to a cylinder 16, and the piston end of the cylinder 16 is fixedly connected to one end of the stop block 17.

[0026] Specifically, in the prior art, when the hardened concrete is detected for stress, one way is to first paste strain gauges 38 on the surface of the concrete, then apply pressure to the concrete structure to simulate actual loads such as vehicles, equipment weights, to measure the strain of the concrete surface, and then convert the stress on the concrete surface by estimating the elastic modulus of the concrete material. However, in general, in order to more accurately obtain the stress of a certain area of concrete, multiple point detection will be selected. And when the stress value of a certain place of concrete is unqualified, it needs to be repaired. After the multi-point detection work is completed, the operator may have difficulty in accurately positioning all the areas with unqualified stress values, and it is easy to miss some areas, thereby affecting the repair work of the concrete.

[0027] Therefore, in order to solve the above problems, in use, a plurality of marking blocks 6 are stacked in the longitudinal arrangement in the inner cavity of the storage cylinder 2, and the lowermost marking block 6 in the inner cavity of the storage cylinder 2 is blocked by the blocking block 17, so that the marking block 6 will not fall out of the storage cylinder 2. And the strain gauges 38 in the initial state are adsorbed by the suction cup 37 under the action of negative pressure.

[0028] The remote control vehicle body 1 is controlled by an external remote control device to move on the concrete road surface. When the remote control vehicle body 1 moves to a designated detection point, the glue pump 40 is used to pump out the glue in the glue tank 39, which is sprayed out from the glue outlet through the connecting pipe 41 and the glue outlet pipe 42, so that the glue is coated on the surface of the glue roller 44. Then the glue pump 40 is closed, the glue roller 44 is driven to move horizontally to the bottom of the strain gauge 38 by the cylinder seven 43, and then the strain gauge 38 is driven to descend by the cylinder one 4, so that the strain gauge 38 is in contact with the surface of the glue roller 44, and the side surface of the strain gauge 38 is also coated with glue. Then the strain gauge 38 is driven to descend again until the strain gauge 38 is attached to the concrete road surface. Then the suction cup two 37 is driven to rise and move away from the strain gauge 38. At this time, the pressure plate 5 can be driven by the hydraulic cylinder 7 to descend, so as to apply pressure to the concrete road surface, so as to measure the strain on the surface of the concrete, and obtain information through the data acquisition instrument 53, so as to estimate the elastic modulus of the concrete material and convert the stress on the surface of the concrete. If the stress is qualified, the suction cup two 37 is adsorbed to the strain gauge 38 again, and the strain gauge 38 is moved away from the road surface, so that the remote control vehicle body 1 can be controlled again to move to the next detection point. When the stress value is unqualified, the storage cylinder 2 is driven to descend by the screw guide rail two 15, so that the lower end surface of the storage cylinder 2 is attached to the road surface, and then the stop block 17 is driven to move horizontally by the cylinder three 16. The mark block 6 at the bottom of the inner cavity of the storage cylinder 2 will fall to the ground due to the loss of extrusion of the stop block 17, and then the stop block 17 is reset, so that the stop block 17 will resist the subsequent mark block 6, so that it will not fall out of the storage cylinder 2. Then the above operation is repeated, and a mark block 6 is placed in the area where the stress value is unqualified. After the detection work is completed, the operator can quickly locate all the areas where the stress value is unqualified by observing the position of the mark block 6, and then repair work is carried out. Thus, the omission is avoided, and the repair efficiency is improved.

[0029] In this embodiment, as shown in Figure 2 、 Figure 3 、 Figure 7 , a movement prevention reinforcing assembly is further arranged on the remote control vehicle body 1. The movement prevention reinforcing assembly comprises a support three 10 fixedly connected to one side of the upper end of the remote control vehicle body 1, a rotating roller 11 rotatably arranged on one side of the upper end of the support three 10, a rubber belt roll 12 sleeved on the rotating roller 11, a support four 26 fixedly connected to one side of the upper end of the remote control vehicle body 1, a cutting knife 35 slidably connected to one side of the upper end of the support four 26, a motor four 56 fixedly connected to one side of the upper end of the support three 10, and the output end of the motor four 56 is fixedly connected with the rotating roller 11.

[0030] The gear 54 is rotatably arranged on one side of the upper end of the bracket three 10, and is engaged with the tooth block on the rack rod 27. The motor three 55 is fixedly connected to one side of the upper end of the bracket three 10, and the output end of the motor three 55 is fixedly connected with the gear 54. The clamping jaw cylinder 28 is fixedly connected to one side of the lower end of the rack rod 27. The cylinder five 46 is fixedly connected to one side of the upper end of the bracket four 26, and the piston end of the cylinder five 46 is fixedly connected with one end of the cutting knife 35.

[0031] The guide rail plate 18 is fixedly connected to one side of the upper end of the remote control vehicle body 1. The lead screw guide rail one 14 is mounted on one side of the guide rail plate 18. The sliding block 19 is slidably arranged on the lead screw guide rail one 14. The cylinder two 13 is fixedly connected to one side of the upper end surface of the sliding block 19. The piston end of the cylinder two 13 is fixedly connected with the lifting plate 20. The turnover plate 21 is rotatably arranged on one side of the lower end of the lifting plate 20. The hard pipe one 22 is fixedly connected to one side of the lower end of the turnover plate 21. The suction disc one 23 is arranged at the pipe openings of the hard pipe one 22.

[0032] The motor one 29 is fixedly connected to one side of the lower end of the lifting plate 20. One end of the motor one 29 is fixedly connected with the turnover plate 21. The air pump one 30 is fixedly connected to one side of the lower end surface of the turnover plate 21. The air inlet end of the air pump one 30 is in communication with one side of the hard pipe one 22.

[0033] Specifically, in the above embodiment, although the operation personnel can find the area with unqualified stress value by placing the marker block 6 on the road surface. However, if the wind force of the detection area is too large or the marker block 6 is accidentally collided by external objects, the marker block 6 may be deviated, thereby affecting the accuracy of the marker.

[0034] Therefore, in order to solve the above problems, in the use of the present embodiment, one end of the adhesive tape roll 12 is in a hanging state in the initial state. After a marker block 6 is placed, the rack rod 27 is driven to rise by the gear 54 driven by the motor 3, so that the clamping cylinder 28 is aligned with the end of the adhesive tape roll 12, and then the clamping cylinder 28 clamps the end of the adhesive tape roll 12. Then, the adhesive tape roll 12 is driven to rotate by the motor 4, so that the adhesive tape is unwound, and at the same time, the clamping cylinder 28 moves downward to pull the adhesive tape. When the adhesive tape is unwound to a certain length, the sliding block 19 is driven to move horizontally by the lead screw guide rail 1, so that the two suction cups 23 are attached to the non-adhesive surface of the unwound adhesive tape, and then the air pump 1 is started to suck the adhesive tape by the suction cup 23, and then the cutting knife 35 is driven to move horizontally by the cylinder 5, so that the adhesive tape is cut off. The cut adhesive tape is fixed by the two suction cups 23, and then the turning plate 21 is driven to rotate by 90 degrees by the motor 1, so that the adhesive surface of the cut adhesive tape faces downward, and then the remote control vehicle body 1 is driven to move until the adhesive surface of the adhesive tape is aligned with the marker block 6, and then the cylinder 2 drives the adhesive tape to descend, so that the two ends of the adhesive tape are attached to the concrete road surface, and the middle part is attached to the marker block 6. Thus, the marker block 6 is adhered to the road surface by the adhesive tape, so that the marker block 6 is not easy to be deviated due to strong wind or accidental collision with external objects, thereby improving the stability of the marker block 6 to a certain extent, and further ensuring the accuracy of the marker.

[0035] In the present embodiment, as shown in Figures 3-5 、 Figure 7 、 Figure 8 、 Figure 12 、 Figure 13 , the turning plate 21 further comprises a collection auxiliary assembly; The collection auxiliary assembly comprises a lifting rod 47 slidably connected to a sliding groove on one side of the turning plate 21, a conical cylinder 50 fixedly connected to one side of the lower end of the lifting rod 47, a lifting rod 51 rotatably arranged in the inner cavity of the conical cylinder 50, through holes provided on both sides of the conical cylinder 50 for the lifting rod 51 to pass through, a push ring 48 fitted on the outer wall of the conical cylinder 50, clamping rods 25 slidably connected to both sides of the upper end surface of the turning plate 21, a collection box 24 fixedly connected to one side of the remote control vehicle body 1, and two collection grooves provided on the collection box 24.

[0036] The turning plate 21 is fixedly connected to an electric push rod 45, the piston end of the electric push rod 45 is fixedly connected to one side of the push ring 48, motor 2 is fixedly connected to both sides of the inner cavity of the conical cylinder 50, the output end of the motor 2 is fixedly connected to one side of the lifting rod 51, a cylinder 6 is fixedly connected to one side of the lower end of the lifting rod 47, the piston end of the cylinder 6 is fixedly connected to one side of the push ring 48, a cylinder 4 is fixedly connected to one side of the upper end surface of the turning plate 21, the piston end of the cylinder 4 is fixedly connected to a connecting block 32, connecting rods 33 are rotatably arranged on both sides of the connecting block 32, and one end of the connecting rod 33 is rotatably connected to one end of the clamping rod 25.

[0037] Specifically, in the above embodiment, although the marking block 6 can be reinforced by the adhesive tape, in order to ensure the cleanliness of the road surface and reduce the marking cost, it is necessary to recycle the marking block 6. Since the marking block 6 is adhered to the road surface by the adhesive tape, when collecting the marking block 6, the adhesive tape needs to be torn off from the marking block 6 so that the marking block 6 can be reused. When the operator manually picks up the marking block 6 and tears off the adhesive tape from the marking block 6, it is more laborious and labor-intensive.

[0038] Therefore, in order to solve the above problems, in use, when the marking block 6 on the road surface needs to be recycled, the remote control vehicle body 1 is driven to move to the designated location, and the cone cylinder 50 is aligned with the round hole in the marking block 6. At the same time, the two suction cups 23 are used again to compress the two ends of the adhesive tape, and the lower end of the clamping rod 25 is in contact with the ground at this time, so that the two clamping rods 25 are brought close to each other and in contact with the two sides of the marking block 6 by moving the connecting block 32 driven by the cylinder four 31, and the marking block 6 is clamped by the clamping rod 25. Then the cone cylinder 50 is lowered by using the electric push rod 45, so that the cone cylinder 50 penetrates the middle of the adhesive tape and extends into the through hole of the marking block 6, and then the lifting rod 51 is rotated by using the motor two 52 to drive the lifting rod 51 to rotate from the inner cavity of the cone cylinder 50, so that the two lifting rods 51 abut against the adhesive surface of the adhesive tape. Subsequently, the turnover plate 21 is driven to rise, and the marking block 6 will also move away from the road surface under the clamping of the clamping rod 25. At this time, the cone cylinder 50 is driven to rise again by using the electric push rod 45, so that the adhesive tape will be separated from the marking block 6 under the action of the two lifting rods 51. At this time, the transverse position of the marking block 6 can be adjusted by driving the sliding block 19 to move transversely, so that it is aligned with a collection groove in the collection box 24, and then the clamping rod 25 releases the marking block 6, so that the marking block 6 falls into the collection groove. Subsequently, the cone cylinder 50 is driven to align with the collection groove on the other side, and then the lifting rod 51 is retracted into the inner cavity of the cone cylinder 50, and the push ring 48 is lowered by the cylinder six 49 to push the adhesive tape wrapped on the cone cylinder 50 to fall into the collection groove. At this time, the used marking block 6 and the adhesive tape are respectively in different collection grooves. Then the above operation is repeated until all the marking blocks 6 are recycled. Thus, the process of manually recycling the marking block 6 by the operator is omitted, which is more convenient and labor-saving. During the recycling process of the marking block 6, the adhesive tape can be separated from the marking block 6, which facilitates the reuse of the marking block 6.

[0039] Working principle: a number of marking block 6 in the longitudinal arrangement of the way stacked in the storage cylinder 2 inner cavity, and, the storage cylinder 2 inner cavity the lowermost marking block 6 will be blocked by the block 17, then the marking block 6 will not fall out of the storage cylinder 2. And, the initial state of the strain gauge 38 under the action of negative pressure by suction cup two 37 adsorbed. Using external remote control equipment control remote car body 1 in the concrete pavement driving, when the remote car body 1 moves to the designated detection point, using glue pump 40 will glue water tank 39 inside the glue out, through the connecting pipe 41 and glue pipe 42 after from the glue outlet, make the glue coating on the surface of the glue roller 44, then close the glue pump 40, using the cylinder seven 43 drive glue roller 44 transverse to the strain gauge 38 below, then using the cylinder one 4 drive strain gauge 38 down, make the strain gauge 38 with the surface of the glue roller 44 contact, make the strain gauge 38 one side surface also coated with glue, then again drive strain gauge 38 down, until the strain gauge 38 and concrete pavement adhesion. Then drive suction cup two 37 rise and away from the strain gauge 38. At this time, can use hydraulic cylinder 7 drive pressure plate 5 down, to the concrete pavement to exert pressure, in order to measure the concrete surface strain, and through the data acquisition instrument 53 to obtain information, so as to estimate the elastic modulus of concrete material, and conversion to get the stress of concrete surface. If the stress is qualified, suction cup two 37 again adsorbed strain gauge 38, and make the strain gauge 38 away from the road surface, that can control the remote car body 1 again to make it move to the next detection point. When the stress value is not qualified, using the screw guide rail two 15 drive storage cylinder 2 down, make the storage cylinder 2 lower end surface and road surface adhesion, then using the cylinder three 16 drive block 17 transverse, then the storage cylinder 2 inner cavity the bottom of the marking block 6 will fall off due to the loss of block 17 extrusion and fall to the ground, then drive block 17 reset, then the block 17 will be the next marking block 6 against, so that it will not fall out of the storage cylinder 2. Then repeat the above operation, whenever detected stress value is not qualified area, will be placed in this marking block 6. After the detection work is finished, the operator can observe the position of the marking block 6, to quickly locate to all stress value is not qualified area, and then repair work. So as to avoid the omission, is conducive to improving the repair efficiency. The initial state of the adhesive tape roll 12 one end is in a state of falling. When a marking block 6 is completed, the placement of the gear 54 through the motor three 55 drive rack bar 27 rising way drive, make the jaw cylinder 28 clamping end align with the adhesive tape roll 12 end, then use the jaw cylinder 28 clamping end of the adhesive tape roll 12. Subsequently through the motor four 56 drive adhesive tape roll 12 rotation, to the adhesive tape for uncoiling, at the same time, the jaw cylinder 28 moves down, to the adhesive tape for traction, when the adhesive tape uncoiling a certain length. Through the screw guide rail one 14 drive slide block 19 transverse, make two suction cup one 23 and adhesive tape uncoiling part of the non coating surface adhesion, then start the air pump one 30, using the suction cup one 23 will be adsorbed, then the cylinder five 46 drive cutting knife 35 transverse, cut the adhesive tape.The cut-off adhesive tape is fixed by two suction cups 23, then the turnover plate 21 is driven by the motor 29 to rotate 90 degrees, so that the cut-off adhesive tape is coated with glue downward, then the remote control car body 1 is driven to move until the adhesive tape coated with glue is aligned with the marker block 6, then the cylinder 2 13 drives the adhesive tape to descend, so that the two ends of the adhesive tape are attached to the concrete road surface, and the middle part is attached to the marker block 6. Thus, the marker block 6 is adhered to the road surface by the adhesive tape, and the marker block 6 is not easy to deviate due to excessive wind or accidental collision of external objects, thereby improving the stability of the marker block 6 to a certain extent, and further ensuring the accuracy of the marker. When it is necessary to recycle the marker block 6 on the road surface, the remote control car body 1 is driven to move to the specified location, and the cone cylinder 50 is aligned with the round hole in the marker block 6. At the same time, the two ends of the adhesive tape are pressed again by using two suction cups 23, and the lower end of the clamp rod 25 is attached to the ground at this time, so that the two clamp rods 25 are moved closer to each other and attached to the two sides of the marker block 6 by driving the connecting block 32 to move by the cylinder 4 31, so that the marker block 6 is clamped by the clamp rod 25. Then the cone cylinder 50 is driven downward by using the electric push rod 45, so that the cone cylinder 50 penetrates the middle part of the adhesive tape and extends into the through hole of the marker block 6, and then the lifting rod 51 is rotated by using the motor 2 52, so that the two lifting rods 51 abut against the adhesive tape coated with glue. Subsequently, the turnover plate 21 is driven to rise, so that the marker block 6 also moves away from the road surface under the clamping of the clamp rod 25, at this time, the cone cylinder 50 is driven upward again by using the electric push rod 45, so that the adhesive tape is separated from the marker block 6 under the action of the two lifting rods 51, at this time, the lateral position of the marker block 6 can be adjusted by driving the sliding block 19 to move transversely, so that it is aligned with a collection groove in the collection box 24, and then the clamp rod 25 releases the marker block 6, so that the marker block 6 falls into the collection groove. Subsequently, the cone cylinder 50 is driven to align with the collection groove on the other side, and then the lifting rod 51 is retracted into the inner cavity of the cone cylinder 50, and the cylinder 6 49 drives the push ring 48 to descend, so that the adhesive tape wrapped on the cone cylinder 50 is pushed into the collection groove. At this time, the used marker block 6 and the adhesive tape are respectively in different collection grooves. Then the above operation is repeated until all the marker blocks 6 are recycled. Thus, the process of manually recycling the marker block 6 by the operator is saved, which is more convenient and labor-saving. During the recycling process of the marker block 6, the adhesive tape can be separated from the marker block 6, which is convenient for the reuse of the marker block 6.

[0040] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A concrete stress sensor comprising a remote control vehicle body (1), characterized in that: The remote control car body (1) upper end one side is fixedly connected with support one (3), data acquisition instrument (53) is arranged on the upper end one side of the support one (3), the data acquisition instrument (53) is electrically connected with strain gauge (38), the remote control car body (1) one side is slidably connected with two guide rods (8), the lower end of the guide rod (8) is fixedly connected with pressure disc (5), the remote control car body (1) upper end one side is fixedly connected with hydraulic cylinder (7), the piston end of the hydraulic cylinder (7) is fixedly connected with the upper end one side of pressure disc (5), the remote control car body (1) upper end is also provided with placing type unqualified area marking assembly; The placing type unqualified area marking assembly includes support two (9) fixedly connected on the upper end one side of the remote control car body (1), the support two (9) is installed with screw rod guide rail two (15), the screw rod guide rail two (15) is slidably provided with storage barrel (2), a plurality of marking blocks (6) are placed in the longitudinal arrangement of the storage barrel (2), the marking block (6) is provided with a circular through hole in the middle.

2. A concrete stress sensor according to claim 1, characterised in that: The support one (3) upper end one side is fixedly connected with air cylinder one (4), the piston end one side of the air cylinder one (4) is fixedly connected with hard tube two (36), the lower end of the hard tube two (36) is provided with suction disc two (37), the piston end one side of the air cylinder one (4) is fixedly connected with air pump two (34), the air inlet end of the air pump two (34) is communicated with one end of the hard tube two (36).

3. A concrete stress sensor according to claim 1, wherein: The support one (3) one side is fixedly connected with glue tank (39), the bottom one side of the glue tank (39) is communicated and fixedly connected with glue pump (40), the glue outlet end of the glue pump (40) is communicated with connecting pipe (41), one end of the connecting pipe (41) penetrates through the support one (3) and is communicated with glue outlet pipe (42), a plurality of glue outlets are arranged on the bottom of the glue outlet pipe (42), the support one (3) one side is fixedly connected with air cylinder seven (43), the piston end of the air cylinder seven (43) is fixedly connected with one side of glue roller (44).

4. A concrete stress sensor according to claim 1, wherein: The lower end one side of the storage barrel (2) is inserted and slidably connected with stop block (17), the lower end one side of the storage barrel (2) is fixedly connected with air cylinder three (16), the piston end of the air cylinder three (16) is fixedly connected with one end of the stop block (17).

5. A concrete stress sensor according to claim 1, characterized in that: The remote control car body (1) is also provided with anti-moving reinforcing assembly; The anti-moving reinforcing assembly includes support three (10) fixedly connected on the upper end one side of the remote control car body (1), the upper end one side of the support three (10) is rotatably provided with rotating roller (11), the rotating roller (11) is sleeved with adhesive tape roll (12), the upper end one side of the remote control car body (1) is fixedly connected with support four (26), the upper end one side of the support four (26) is slidably connected with cutting knife (35), the upper end one side of the support three (10) is fixedly connected with motor four (56), the output end of the motor four (56) is fixedly connected with rotating roller (11).

6. A concrete stress sensor according to claim 5, wherein: The upper end of the bracket three (10) is rotatably provided with a gear (54), the gear (54) is in mesh with the tooth block on the rack rod (27), the upper end of the bracket three (10) is fixedly connected with a motor three (55), the output end of the motor three (55) is fixedly connected with the gear (54), the lower end of the rack rod (27) is fixedly connected with a jaw cylinder (28), the upper end of the bracket four (26) is fixedly connected with a cylinder five (46), and one end of the cylinder five (46) is fixedly connected with the cutting knife (35).

7. A concrete stress sensor according to claim 1, wherein: The upper end of the remote control vehicle body (1) is fixedly connected with a guide rail plate (18), one side of the guide rail plate (18) is provided with a screw rod guide rail (14), the screw rod guide rail (14) is slidably provided with a sliding block (19), the upper end surface of the sliding block (19) is fixedly connected with a cylinder two (13), the piston end of the cylinder two (13) is fixedly connected with a lifting plate (20), the lower end of the lifting plate (20) is rotatably provided with a turnover plate (21), the lower end of the turnover plate (21) is fixedly connected with a hard pipe one (22), and the two side openings of the hard pipe one (22) are provided with suction discs one (23).

8. A concrete stress sensor according to claim 7, characterised in that: The lower end of the lifting plate (20) is fixedly connected with a motor one (29), one end of the motor one (29) is fixedly connected with the turnover plate (21), the lower end surface of the turnover plate (21) is fixedly connected with a gas pump one (30), and the air inlet end of the gas pump one (30) is in communication with one side of the hard pipe one (22).

9. A concrete stress sensor according to claim 7, wherein: The turnover plate (21) is also provided with a collecting auxiliary assembly; The collecting auxiliary assembly comprises a lifting rod (47) slidably connected to the sliding groove on one side of the turnover plate (21), the lower end of the lifting rod (47) is fixedly connected with a tapered cylinder (50), the lifting rod (51) is rotatably arranged on both sides of the inner cavity of the tapered cylinder (50), the tapered cylinder (50) is provided with through holes on both sides for the lifting rod (51) to pass through, the tapered cylinder (50) is externally and tightly sleeved with a push ring (48), the two sides of the upper end surface of the turnover plate (21) are slidably connected with clamping rods (25), one side of the remote control vehicle body (1) is fixedly connected with a collecting box (24), and the collecting box (24) is provided with two collecting grooves.

10. A concrete stress sensor according to claim 9, characterised in that: The turnover plate (21) is fixedly connected with an electric push rod (45), the piston end of the electric push rod (45) is fixedly connected with one side of the push ring (48), the inner cavity of the tapered cylinder (50) is fixedly connected with a motor two (52) on both sides, the output end of the motor two (52) is fixedly connected with one side of the lifting rod (51), the lower end of the lifting rod (47) is fixedly connected with a cylinder six (49), the piston end of the cylinder six (49) is fixedly connected with one side of the push ring (48), the upper end surface of the turnover plate (21) is fixedly connected with a cylinder four (31), the piston end of the cylinder four (31) is fixedly connected with a connecting block (32), the connecting block (32) is rotatably provided with connecting rods (33) on both sides, and one end of the connecting rod (33) is rotatably connected with one end of the clamping rod (25).

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