Asphalt flatness detection device for waterproof layer of bridge floor and use method of asphalt flatness detection device

Abstract

The invention provides an asphalt flatness detection device for a bridge floor waterproof layer and a use method thereof, and belongs to the technical field of bridge floor construction detection.The asphalt flatness detection device comprises a cart and a cross rod horizontally and fixedly arranged in front of a frame of the cart, and further comprises a plurality of sliding seats which are slidably clamped and fixed to the cross rod, meanwhile, the device comprises a feedback device, a display device and an identification device, after a plurality of side-by-side detection wheels roll over a to-be-detected asphalt waterproof layer pavement, the detection wheels can descend or ascend when encountering defects such as unevenness and bumps of an asphalt waterproof layer, and finally smooth marking stroke lines are presented on a paperboard plane, so that the detection accuracy is improved, and the detection efficiency is improved. Therefore, workers can observe, compare and evaluate conveniently, and constructors can detect the waterproof layer of the bridge floor conveniently and accurately, and meanwhile, construction defects can be found quickly and rectified.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge deck construction detection, and in particular to an asphalt flatness detection device for a bridge deck waterproof layer and a use method thereof. Background Art

[0002] The asphalt waterproofing layer of the bridge deck is a protective layer applied to the bridge structure to prevent moisture from penetrating under the bridge deck. It is usually made of asphalt or asphalt-modified materials and coated on the concrete surface of the bridge deck. The asphalt waterproofing layer of the bridge deck plays an important role in protecting the bridge structure, extending its service life, improving driving comfort and reducing noise.

[0003] After the asphalt waterproof layer of the bridge deck is laid, it is necessary to test the asphalt flatness of the bridge deck waterproof layer to determine whether there are defects such as unevenness and bulges, so as to ensure the construction quality and performance of the bridge deck waterproof layer. Most of the existing detection methods use manual naked eye observation or laser rangefinders. Manual naked eye observation is very susceptible to environmental and personal subjective factors, such as light, viewing angle, fatigue, etc., and has a large error range. The laser rangefinder requires professional installation, debugging and calibration, and has high professional requirements for personnel. At the same time, since the laser rangefinder's laser is emitted and received in a straight line, after a certain slope appears on the bridge deck, the laser rangefinder needs to constantly change its position, and the measurement result will also be biased. In order to conveniently and accurately detect the flatness of the bridge deck waterproof layer, an asphalt flatness detection device for the bridge deck waterproof layer is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide an asphalt flatness detection device for a bridge deck waterproof layer and a method of using the same, which can detect the bridge deck waterproof layer very conveniently and relatively accurately, so that construction workers can quickly discover construction defects and make corrections.

[0005] In a first aspect, an embodiment of the present invention is implemented by the following technical solution: an asphalt flatness detection device for a bridge deck waterproof layer, comprising a trolley and a crossbar horizontally fixed in front of a frame of the trolley, and further comprising:

[0006] A plurality of slide seats are provided, and are respectively slidably engaged and fixed on the cross bar;

[0007] Feedback device: correspondingly arranged on each of the slide seats, including a detection wheel, a swing rod, a torsion spring, a gear set and an extension rod, the detection wheel is rotatably arranged on the swing rod, the swing rod is hingedly arranged on the slide seat, the torsion spring is arranged on the hinge shaft of the swing rod and is used to drive the detection wheel to abut against the asphalt layer of the bridge deck, the input end of the gear set is connected to the hinge shaft of the swing rod, the output end of the gear set is connected to the extension rod and is used to drive the extension rod to swing so as to amplify the swing amplitude of the swing rod;

[0008] The display device includes a limit plate, a marking pen, a linkage, a cardboard and a driving assembly. The limit plate is vertically fixed on the frame of the cart. A plurality of marking pens are arranged along the length direction of the limit plate. The vertical heights of all the marking pens are gradually reduced along the length direction of the limit plate. At the same time, the marking pen is slidably passed through the limit plate. The linkage is correspondingly arranged between the extension rod and the marking pen, and is used to drive the marking pen to slide along the vertical direction of the limit plate when the extension rod swings. The cardboard is abutted in front of the pen tips of all the marking pens. The driving assembly is used to drive the cardboard to translate at a uniform speed so that all the marking pens can draw lines along the plane of the cardboard.

[0009] Further, the gear group includes a first gear and a second gear, the first gear is fixedly mounted on the hinge shaft of the rocker arm, a support plate is fixedly arranged on the slide seat, the hinge shaft of the rocker arm is rotatably arranged on the support plate, the second gear is rotatably arranged on the support plate, the first gear and the second gear are meshed with each other, one end of the extension rod is fixedly arranged on the second gear, and the diameter of the first gear is greater than the diameter of the second gear.

[0010] Furthermore, it also includes an identification device, which includes a touch rod, a touch switch, a seal, an electromagnet, a first spring and a controller, one end of the touch rod is fixedly set on the hinge shaft of the rocker arm, the touch switch is fixedly set on the support plate, and a pair of touch switches are provided and located above and below the touch rod, a plurality of sliding grooves are opened in the circumference of the detection wheel, the seal is slidingly set in the sliding groove, the electromagnet is fixedly set on the bottom wall of the sliding groove, the first spring is set between the electromagnet and the seal, the controller is set on the support plate, and the controller is used to control all electromagnets on the corresponding detection wheel to cut off power after the touch switch is squeezed and energized, and the seal is ejected by the first spring after the electromagnet is powered off.

[0011] Furthermore, the limiting plate is provided with a plurality of positioning grooves along the length direction, each of the positioning grooves is vertically arranged, a positioning block is slidably arranged in the positioning groove, the marking pen corresponds to the positioning block one by one, the marking pen is fixedly inserted into the positioning block, and a return spring is fixedly arranged at the upper and lower ends of each of the positioning blocks, and the return springs at both ends are respectively fixedly connected to the end walls of the positioning groove at both ends.

[0012] Furthermore, the linkage part includes a linkage rod and a nut. End rods are rotatably arranged at both ends of the linkage rod. The outer wall of the end rod is threaded. The end rod close to the positioning block is threadedly inserted into the positioning block, and the end rod close to one end of the extension rod is passed through the extension rod. A pair of nuts are arranged, and the nuts are threadedly connected to the end rod close to one end of the extension rod and abut against the extension rod.

[0013] Furthermore, the driving assembly includes a paper placing roller, a paper collecting roller and a driving motor, the paper placing roller is detachably arranged on the frame of the cart, and the paper placing roller and the paper collecting roller are spaced and arranged opposite to each other, the driving motor is fixedly arranged on the frame of the cart, the paper collecting roller is detachably arranged on the output shaft of the driving motor, the two ends of the paperboard are respectively wound around the paper placing roller and the paper collecting roller, an abutment plate is also fixedly arranged on the frame of the cart, the abutment plate and the limit plate are arranged parallel to each other, the abutment plate is located on the side of the paperboard away from the limit plate, and the abutment plate and the paperboard are arranged to abut each other.

[0014] Furthermore, there are multiple groups of feedback devices on each slide seat along the travel direction of the cart, and the limit plate has multiple groups of positioning grooves vertically corresponding to the multiple groups of feedback devices. Marking pens are also slidably arranged in the positioning grooves, and the multiple groups of marking pens are all facing the same cardboard.

[0015] Furthermore, the crossbar is provided with a T-shaped slot along the length direction, each of the slide seats is fixedly provided with a T-shaped block, the T-shaped block is slidably fitted in the T-shaped slot, and a locking screw is threadedly penetrated on the slide seat and abuts against the crossbar.

[0016] Furthermore, the wheels of the cart include front rollers and rear rollers, a pair of front rollers are provided and fixedly disposed in front of the frame of the cart, the frame of the cart includes a rear support rod, the rear support rod is telescopically arranged, the rear support rod is provided with a stud for fixing the length of the rear support rod after telescoping, and there is one rear roller and it is fixedly disposed on the rear support rod.

[0017] In a second aspect, an embodiment of the present invention is implemented by the following technical solution: a method for using an asphalt flatness detection device for a bridge deck waterproof layer, further comprising:

[0018] S1: First, push the cart to the position of the asphalt waterproof layer on the bridge deck that needs to be tested, and slide and fix a suitable number of slide seats along the crossbar according to the width of the asphalt waterproof layer on the bridge deck;

[0019] S2: Then the two ends of the linkage rod of each slide are connected to the extension rod and the positioning block respectively, and the feedback device on each set of slides needs to be connected in series with the marking pen corresponding to each set of positioning slots;

[0020] S3: restart the driving motor and push the cart along the bridge deck to the detection of the entire bridge deck path;

[0021] S4: remove the cardboard, observe the marking lines drawn by the marker on the cardboard, compare and evaluate the ripples of multiple groups of marking lines, so as to complete the inspection of the asphalt waterproof layer of the bridge deck, timely discover construction defects and make rectifications;

[0022] S5: At the same time, according to the color position of the seal on the asphalt waterproof layer of the bridge deck, the position can be accurately located to discover construction defects in time and make corrections to ensure that the quality of the completed project meets the standards.

[0023] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0024] 1. The present invention moves the cart to the position of the asphalt waterproof layer that needs to be inspected on the bridge deck. During the process, a suitable number of slide seats are slid into and fixed along the cross bar according to the width of the asphalt waterproof layer of the bridge deck. The detection wheel of the feedback device is abutted against the asphalt waterproof layer. After a plurality of side-by-side detection wheels roll over the asphalt waterproof layer road surface to be inspected, when encountering defects such as unevenness and bulges in the asphalt waterproof layer, the detection wheel will appear in a descending or ascending state, thereby causing the swing arm and the extension rod to swing. The swing amplitude of the swing arm is amplified by the gear set. Under the traction of the linkage part, the marking pen will draw lines along the plane of the cardboard. When the driving component drives the cardboard to translate at a uniform speed, the plane of the cardboard will present smooth lines, which is convenient for the staff to observe, compare and evaluate. Through the modular design of the slide seat, the feedback device and the like, the adaptability of the asphalt waterproof layer detection of the bridge deck is improved. At the same time, the detection method is simple and convenient to operate, and the professional requirements for the staff are low. The flatness of the asphalt waterproof layer can also be intuitively displayed on the cardboard. The measurement result is also relatively accurate, which can facilitate the staff to quickly find construction defects and make corrections.

[0025] 2. The present invention sets a marking device. When encountering defects such as unevenness and bulges on the asphalt waterproof layer, the detection wheel will appear to be in a state of falling or rising, thereby causing the swing rod and the extension rod to swing, which will drive the touch rod to swing, so that the touch switch is squeezed and energized. At this time, the controller will control all the electromagnets on the corresponding detection wheel to cut off the power. After the electromagnet is powered off, the seal will be ejected by the first spring, and the seal will be printed on the asphalt waterproof layer of the bridge deck. The unevenness and bulges are accurately located, which is convenient for the staff to rectify in the later stage. When encountering a flat ground of the asphalt waterproof layer, The touch rod will then rotate back with the rocker arm and the detection wheel, and disengage from the squeezing of the touch switch. The controller controls the electromagnet to be energized, and the seal will be sucked back by the electromagnet. Furthermore, by installing multiple sets of feedback devices on the slide along the travel direction of the cart, multiple sets of feedback devices are used to draw multiple sets of marking lines on the cardboard. By observing the smoothness of the multiple sets of marking lines on the cardboard, the flatness of the asphalt waterproof layer in the length direction of the bridge deck can be compared, thereby realizing the detection of the flatness of the asphalt waterproof layer in the length and width directions of the bridge deck, thereby improving the detection efficiency and data comparison range, and at the same time improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the overall structure of the asphalt flatness detection device for a bridge deck waterproof layer provided by the present invention;

[0028] Figure 2 A front perspective schematic diagram of an asphalt flatness detection device for a bridge deck waterproof layer provided by the present invention;

[0029] Figure 3 A front view of an asphalt flatness detection device for a bridge deck waterproof layer provided by the present invention;

[0030] Figure 4 It is a structural schematic diagram of the present invention for displaying a slide seat and a feedback device;

[0031] Figure 5 This is a schematic diagram of the structure of the present invention for displaying the marking device and the gear set;

[0032] Figure 6 This is a schematic diagram of the structure of the present invention for displaying linkage parts and gear sets;

[0033] Figure 7 For the present invention Figure 6A magnified view of part A;

[0034] Figure 8 This is an exploded view of the present invention for displaying the limit plate and the driving assembly;

[0035] Fig. 9 For the present invention Figure 8 Enlarged view of part B.

[0036] Icons: 1-trolley, 11-crossbar, 111-T-slot, 12-frame, 13-connecting rod, 14-L-shaped rod, 15-front roller, 16-rear roller, 17-rear support rod, 18-stud, 2-slide seat, 21-support plate, 22-T-block, 23-locking screw, 3-feedback device, 31-detection wheel, 311-slide slot, 32-rocker, 321-articulated shaft, 33-torsion spring, 34-gear set, 341-first gear, 342-second gear, 35-extension rod, 4-display device, 41-limiting plate, 411-fixed Position slot, 4111-side slot, 42-marking pen, 43-linkage, 431-linkage rod, 4311-end rod, 432-nut, 44-cardboard, 45-driving assembly, 451-paper release roller, 4511-rotating rod, 452-paper collection roller, 4521-insertion block, 453-drive motor, 4531-slot, 46-abutment plate, 5-marking device, 51-touch rod, 52-touch switch, 53-stamp, 54-electromagnet, 55-first spring, 56-controller, 6-positioning block, 61-side block, 62-reset spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0039] Example

[0040] The following is further described in conjunction with specific embodiments. Figure 1-Figure 9As shown, the present invention is an asphalt flatness detection device for a bridge deck waterproof layer, comprising a trolley 1 and a crossbar 11 horizontally fixedly installed in front of a frame 12 of the trolley 1. A level meter needs to be installed above the crossbar 11. By observing the data of the level meter, the smooth and horizontal driving of the trolley 1 can be observed. The rollers of the trolley 1 include a front roller 15 and a rear roller 16. The front roller 15 is installed with a pair of and fixedly installed in front of the frame 12 of the trolley 1. The frame 12 of the trolley 1 includes a rear support rod 17. The rear support rod 17 is telescopically arranged. A stud 18 for fixing the length of the rear support rod 17 after telescoping is installed on the rear support rod 17. By adjusting the length of the rear support rod 17, the detection wheel 3 can be adjusted. 1 is sensitive to the bridge surface, and it is convenient for workers at different heights to operate the handle of the cart 1. There is one rear roller 16 and it is fixedly installed on the rear support rod 17. The slide 2 is installed with multiple rear rollers and they are respectively slidably connected and fixed on the cross bar 11. The rear roller 16 and the two front rollers 15 form a triangle to facilitate the steering and stable driving of the cart 1. The cross bar 11 is penetrated with a T-shaped groove 111 along the length direction. Each slide 2 is fixedly provided with a T-shaped block 22, and the T-shaped block 22 is slidably matched in the T-shaped groove 111. The slide 2 is threaded with a locking screw 23 that abuts on the cross bar 11. The position of the slide 2 can be fixed by rotating the locking screw 23. The operation is simple and convenient.

[0041] In this embodiment, two groups of feedback devices 3 are installed along the travel direction of the cart 1 and are correspondingly installed on each slide 2. Each group of feedback devices 3 includes a detection wheel 31, a rocker arm 32, a torsion spring 33, a gear set 34 and an extension rod 35. A pair of support plates 21 are welded on the slide 2. The detection wheel 31 is rotatably installed on the rocker arm 32. The rocker arm 32 is hingedly installed on the support plate 21 and is located between the pair of support plates 21. The torsion spring 33 is sleeved on the hinge shaft 321 of the rocker arm 32. One end of the torsion spring 33 is fixedly connected to the rocker arm 32, and the other end is connected to the support plate 21. The torsion spring 33 is used to drive the detection wheel 31 to abut against the asphalt layer of the bridge deck. The input end of the gear set 34 is connected to the hinge shaft 321 of the swing rod 32, and the output end of the gear set 34 is connected to the extension rod 35, and is used to drive the extension rod 35 to swing, thereby amplifying the swing amplitude of the swing rod 32. Specifically, the gear set 34 includes a first gear 341 and a second gear 342. The first gear 341 is fixedly sleeved on the hinge shaft 321 of the swing rod 32, and the hinge shaft 321 of the swing rod 32 is rotatably mounted on the support plate 21. The second gear 342 is rotatably connected to the support plate 21. The first gear 341 and the second gear 342 are meshed with each other. One end of the extension rod 35 is fixedly mounted on the second gear 342. The first gear 341 is fixedly sleeved on the hinge shaft 321 of the swing rod 32. The hinge shaft 321 of the swing rod 32 is rotatably mounted on the support plate 21. The second gear 342 is rotatably connected to the support plate 21. The first gear 341 and the second gear 342 are meshed with each other. The diameter of 341 is greater than the diameter of the second gear 342, and the swing rod 32 forms an obtuse angle with the extension rod 35 to increase the swing range of the extension rod 35, wherein the limiting plate 41 is provided with a plurality of positioning grooves 411 along the length direction, each positioning groove 411 is vertically arranged, and side grooves 4111 are provided on both sides of the positioning groove 411 along the length direction of the positioning groove 411, and a positioning block 6 is slidably installed in the positioning groove 411, and the positioning block 6 is square, and side blocks 61 are integrally formed on both sides of the positioning block 6, and the side blocks 61 are square, and the side blocks 61 are slidably connected in the side grooves 4111 to prevent the positioning block 6 from slipping and play a role in limiting. The marking pen 42 corresponds to the positioning block 6 one by one, and the marking pen 42 is fixedly inserted into the positioning block 6. Reset springs 62 are fixedly installed at the upper and lower ends of each positioning block 6. The reset springs 62 at both ends are respectively fixed to the end walls of the positioning groove 411 at both ends. The reset spring 62 can play a role in resetting and positioning, so that the positioning block 6 and the marking pen 42 move to the initial position after moving, and the limiting plate 41 is provided with two groups of positioning grooves 411 corresponding to the two groups of feedback devices 3 in the vertical direction. The two groups of positioning grooves 411 are arranged in parallel along the width direction of the limiting plate 41, and the multiple marking pens 42 in the two groups of positioning grooves 411 are facing the same cardboard 44.

[0042] Reference Figure 2 , Figure 3The limit plate 41 is vertically fixedly installed on the connecting rod 13 of the frame 12 of the cart 1, and the vertical heights of all the marking pens 42 are gradually reduced along the length direction of the limit plate 41, so that the waveforms presented by the feedback device 3 on each slide 2 are not on the same line, which is convenient for later staff to observe. At the same time, the marking pen 42 is slidably passed through the limit plate 41, and the linkage member 43 is correspondingly installed between the extension rod 35 and the marking pen 42, and is used to drive the marking pen 42 to slide along the vertical direction of the limit plate 41 when the extension rod 35 swings. The cardboard 44 is abutted in front of the pen tips of all the marking pens 42, and the driving assembly 45 is used to drive the cardboard 44 to translate at a uniform speed, so that all the marking pens 42 draw lines along the plane of the cardboard 44.

[0043] Reference Figure 2 , Figure 6 The linkage part 43 includes a linkage rod 431 and a nut 432. Both ends of the linkage rod 431 are rotatably clamped with end rods 4311. The outer wall of the end rod 4311 is threaded. The end rod 4311 close to the positioning block 6 is threadedly inserted into the positioning block 6, so that the end rod 4311 is conveniently fixed to the positioning block 6, and the length of the end rod 4311 can be adjusted for later disassembly. The end rod 4311 close to one end of the extension rod 35 is penetrated on the extension rod 35. A pair of nuts 432 are provided. The nuts 432 are threadedly connected to the end rod 4311 close to one end of the extension rod 35 and abut against the extension rod 35. The length of the end rod 4311 can be adjusted by screwing the nuts 432 to improve the overall adaptability.

[0044] Reference Figure 8 , Fig. 9The driving assembly 45 includes a paper placing roller 451, a paper collecting roller 452 and a driving motor 453. The paper placing roller 451 is detachably mounted on the L-shaped rod 14 of the frame 12 of the cart 1. Specifically, a square plug block 4521 is integrally formed at the lower end of the paper placing roller 451. A rotating rod 4511 is rotatably connected to the L-shaped rod 14. A slot 4531 that cooperates with the plug block 4521 is provided on the top wall of the rotating rod 4511. The square plug block 4521 of the paper placing roller 451 is plugged and fixed in the slot 4531 of the rotating rod 4511, thereby realizing a quick and detachable connection. The L-shaped rod 14 is symmetrically mounted with two connecting rods 13 welded to the frame 12. At the same time, the paper placing roller 451 and the paper collecting roller 452 are spaced and arranged relatively. The driving motor 453 53 is fixedly installed on the frame 12 of the cart 1, and the paper collection roller 452 is detachably set on the output shaft of the driving motor 453. Specifically, the top wall of the output shaft of the driving motor 453 is also provided with a square slot 4531, and the bottom wall of the paper collection roller 452 is integrally formed with a square plug block 4521, and the square plug block 4521 and the square slot 4531 are plugged into and matched with each other, wherein the two ends of the paperboard 44 are respectively wound around the paper placing roller 451 and the paper collection roller 452, and an abutment plate 46 is also fixedly welded on the frame 12 of the cart 1, and the abutment plate 46 and the limiting plate 41 are arranged parallel to each other, and the abutment plate 46 is located on the side of the paperboard 44 away from the limiting plate 41, and the abutment plate 46 and the paperboard 44 are arranged to abut each other, and the abutment plate 46 can play a supporting role.

[0045] Reference Figure 4 , Figure 5 The asphalt flatness detection device for the bridge deck waterproof layer also includes an identification device 5, which includes a touch rod 51, a touch switch 52, a seal 53, an electromagnet 54, a first spring 55 and a controller 56. One end of the touch rod 51 is fixedly installed on the hinge shaft 321 of the swing rod 32. The touch switch 52 is fixedly installed on the support plate 21, and a pair of touch rods 51 are provided and located above and below the touch rod 51. Each detection wheel 31 is provided with a plurality of sliding grooves 311 in the circumference. The seal 53 is slidably installed on the first spring 55 and the controller 56. In the sliding groove 311, the electromagnet 54 is fixedly installed on the bottom wall of the sliding groove 311, the first spring 55 is installed between the electromagnet 54 and the seal 53, the first spring 55 is fixedly connected to the electromagnet 54, and the other end is fixedly connected to the seal 53, the controller 56 is fixedly installed on the support plate 21, and the controller 56 is used to control all the electromagnets 54 on the corresponding detection wheel 31 to cut off the power after the touch switch 52 is squeezed and energized, and the seal 53 is ejected by the first spring 55 after the electromagnet 54 is powered off.

[0046] The working process of this embodiment is as follows: the trolley 1 is pushed to the position of the asphalt waterproof layer on the bridge deck that needs to be inspected and moved. During this period, a suitable number of slide seats 2 are slid in and fixed along the cross bar 11 according to the width of the asphalt waterproof layer on the bridge deck. The two groups of extension rods 35 on each slide seat 2 and the positioning blocks 6 corresponding to the two groups of marking pens 42 are installed with the upper linkage rod 431. The linkage rods 431 need to be installed side by side one by one. When the trolley 1 moves, the detection wheel 31 of the feedback device 3 is used to abut against the asphalt waterproof layer. After multiple side-by-side detection wheels 31 roll over the asphalt waterproof layer road surface to be inspected, when encountering defects such as unevenness and bulges in the asphalt waterproof layer, the detection wheel 31 will appear in a descending or ascending state, thereby causing the swing rod 32 and the extension rod 35 to swing. The swing amplitude of the swing rod 32 is amplified by the gear set 34. Under the traction of the linkage rod 431, the marking pen 42 will draw lines along the plane of the cardboard 44. When the driving motor 453 drives the cardboard 44 to translate at a uniform speed, the plane of the cardboard 44 will present smooth lines, which is convenient for the staff to observe, compare and evaluate.

[0047] At the same time, when the detection wheel 31 is in a state of falling or rising, the swing rod 32 and the extension rod 35 will be caused to swing, which will drive the touch rod 51 to swing, so that the touch switch 52 is squeezed and energized. At this time, the controller 56 will control all the electromagnets 54 on the corresponding detection wheel 31 to be powered off. The seal 53 will be ejected by the first spring 55 after the electromagnet 54 is powered off. The seal 53 will be printed with color on the asphalt waterproof layer of the bridge deck, and the defects such as unevenness and bulges are accurately located, which is convenient for the staff to rectify in the later stage. Then, two groups of marking lines are drawn on the cardboard 44 by using two groups of feedback devices 3. After observing and comparing the smoothness of the two groups of marking lines on the cardboard 44, the flatness of the asphalt waterproof layer in the length direction of the bridge deck can be compared, so as to realize the detection of the flatness of the asphalt waterproof layer in the length and width directions of the bridge deck, improve the detection efficiency and data comparison range, and at the same time improve the detection accuracy. Through modular design, the adaptability of the asphalt waterproof layer detection of the bridge deck is improved, and the measurement result is also more accurate, which can facilitate the staff to quickly find construction defects and rectify them.

[0048] In addition, the embodiment of the present invention is implemented by the following technical solution: a method for using an asphalt flatness detection device for a bridge deck waterproof layer, further comprising:

[0049] S1: First, push the cart 1 to the position of the asphalt waterproof layer on the bridge deck that needs to be tested, and slide and fix a suitable number of slide seats 2 along the cross bar 11 according to the width of the asphalt waterproof layer on the bridge deck;

[0050] S2: Then the two ends of the linkage rod 431 of each slide 2 are respectively connected to the extension rod 35 and the positioning block 6, during which the feedback device 3 on each group of slides 2 needs to be connected in series with the marking pen 42 corresponding to each group of positioning slots 411;

[0051] S3: restart the driving motor 453 and push the cart 1 along the bridge deck to the detection of the entire bridge deck path;

[0052] S4: removing the paperboard 44, observing the marking lines drawn by the marking pen 42 on the paperboard 44, comparing and evaluating the ripples of multiple groups of marking lines, thereby completing the inspection of the asphalt waterproof layer of the bridge deck, timely discovering construction defects and making corrections;

[0053] S5: At the same time, according to the color position of the seal 53 printed on the asphalt waterproof layer of the bridge deck, the position can be accurately located to timely discover construction defects and make corrections to ensure that the quality of the completed project meets the standards.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An asphalt flatness detection device for a bridge deck waterproof layer, comprising a trolley (1) and a crossbar (11) horizontally fixedly arranged in front of a frame (12) of the trolley (1), Features: Also includes: A plurality of slide seats (2) are provided and are respectively slidably engaged and fixed on the cross bar (11); A feedback device (3): correspondingly arranged on each of the slide seats (2), comprising a detection wheel (31), a rocker (32), a torsion spring (33), a gear set (34) and an extension rod (35); the detection wheel (31) is rotatably arranged on the rocker (32); the rocker (32) is hingedly arranged on the slide seat (2); the torsion spring (33) is arranged on the hinge shaft (321) of the rocker (32) and is used to drive the detection wheel (31) to abut against the asphalt layer of the bridge deck; the input end of the gear set (34) is connected to the hinge shaft (321) of the rocker (32); the output end of the gear set (34) is connected to the extension rod (35) and is used to drive the extension rod (35) to swing, thereby amplifying the swing amplitude of the rocker (32); The display device (4) comprises a limit plate (41), a marking pen (42), a linkage (43), a paperboard (44) and a driving assembly (45), wherein the limit plate (41) is vertically fixedly arranged on the frame (12) of the cart (1), a plurality of marking pens (42) are arranged along the length direction of the limit plate (41), and the vertical heights of all the marking pens (42) are gradually reduced along the length direction of the limit plate (41), and at the same time, the marking pens (42) slide through the limit plate (41) to form a plurality of marking pens (42). The linkage member (43) is arranged on the limiting plate (41), and is correspondingly arranged between the extension rod (35) and the marking pen (42), and is used to drive the marking pen (42) to slide along the vertical direction of the limiting plate (41) when the extension rod (35) swings. The paperboard (44) is arranged in contact with the front of the pen tips of all the marking pens (42), and the driving assembly (45) is used to drive the paperboard (44) to translate at a uniform speed, so that all the marking pens (42) draw lines along the plane of the paperboard (44).

2. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 1, Features: The gear set (34) comprises a first gear (341) and a second gear (342); the first gear (341) is fixedly sleeved on the hinge shaft (321) of the swing rod (32); a support plate (21) is fixedly arranged on the slide seat (2); the hinge shaft (321) of the swing rod (32) is rotatably arranged on the support plate (21); the second gear (342) is rotatably arranged on the support plate (21); the first gear (341) and the second gear (342) are meshed with each other; one end of the extension rod (35) is fixedly arranged on the second gear (342); the diameter of the first gear (341) is greater than the diameter of the second gear (342).

3. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 2, Features: The invention also comprises a marking device (5), wherein the marking device (5) comprises a touch rod (51), a touch switch (52), a seal (53), an electromagnet (54), a first spring (55) and a controller (56); one end of the touch rod (51) is fixedly arranged on the hinge shaft (321) of the swing rod (32); the touch switch (52) is fixedly arranged on the support plate (21) and a pair of touch switches (52) are arranged above and below the touch rod (51); a plurality of sliding grooves (311) are opened in the circumferential direction of the detection wheel (31); and the seal (53) is provided on the detection wheel (31). The seal (53) is slidably arranged in the sliding groove (311), the electromagnet (54) is fixedly arranged on the bottom wall of the sliding groove (311), the first spring (55) is arranged between the electromagnet (54) and the seal (53), and the controller (56) is arranged on the support plate (21). The controller (56) is used to control all the electromagnets (54) on the corresponding detection wheel (31) to cut off the power after the touch switch (52) is squeezed and energized, and the seal (53) is ejected by the first spring (55) after the electromagnet (54) is cut off.

4. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 1, Features: The limiting plate (41) is provided with a plurality of positioning grooves (411) along the length direction, each of the positioning grooves (411) is arranged vertically, a positioning block (6) is slidably arranged in the positioning groove (411), the marking pen (42) corresponds to the positioning block (6) one by one, the marking pen (42) is fixedly inserted into the positioning block (6), and a return spring (62) is fixedly arranged at the upper and lower ends of each positioning block (6), and the return springs (62) at both ends are respectively fixedly connected to the end walls of the positioning groove (411) at both ends.

5. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 4, Features: The linkage member (43) comprises a linkage rod (431) and a nut (432). End rods (4311) are rotatably provided at both ends of the linkage rod (431). The outer wall of the end rod (4311) is threadedly provided. The end rod (4311) close to the positioning block (6) is threadedly inserted into the positioning block (6). The end rod (4311) close to one end of the extension rod (35) is passed through the extension rod (35). A pair of nuts (432) are provided. The nuts (432) are threadedly connected to the end rod (4311) close to one end of the extension rod (35) and abut against the extension rod (35).

6. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 1, Features: The driving assembly (45) comprises a paper placing roller (451), a paper collecting roller (452) and a driving motor (453); the paper placing roller (451) is detachably arranged on a frame (12) of the cart (1); the paper placing roller (451) and the paper collecting roller (452) are spaced apart and arranged opposite to each other; the driving motor (453) is fixedly arranged on the frame (12) of the cart (1); the paper collecting roller (452) is detachably arranged on the driving motor ( The paperboard (44) is mounted on an output shaft of a paper placing roller (451) and a paper collecting roller (452), respectively. An abutment plate (46) is fixedly arranged on the frame (12) of the cart (1). The abutment plate (46) and the limit plate (41) are arranged parallel to each other. The abutment plate (46) is located on a side of the paperboard (44) away from the limit plate (41). The abutment plate (46) and the paperboard (44) are arranged to abut against each other.

7. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 6, Features: A plurality of feedback devices (3) are arranged on each of the slide seats (2) along the direction of travel of the cart (1), and a plurality of positioning grooves (411) are provided on the limit plate (41) vertically corresponding to the plurality of feedback devices (3). Marking pens (42) are also slidably arranged in the positioning grooves (411), and the plurality of marking pens (42) are all facing the same cardboard (44).

8. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 1, Features: The cross bar (11) is provided with a T-shaped slot (111) running through it along the length direction, each of the slide seats (2) is fixedly provided with a T-shaped block (22), the T-shaped block (22) is slidably fitted in the T-shaped slot (111), and a locking screw (23) is threadedly passed through the slide seat (2) and abutted against the cross bar (11).

9. The asphalt flatness detection device for bridge deck waterproofing layer according to claim 1, Features: The rollers of the cart (1) include a front roller (15) and a rear roller (16); a pair of the front rollers (15) are provided and fixedly arranged in front of a frame (12) of the cart (1); the frame (12) of the cart (1) includes a rear support rod (17); the rear support rod (17) is telescopically arranged; a stud (18) for fixing the length of the rear support rod (17) after telescoping is arranged on the rear support rod (17); and the number of the rear roller (16) is one and is fixedly arranged on the rear support rod (17).

10. A method for using an asphalt flatness detection device for a bridge deck waterproof layer, Features: The asphalt flatness detection device for a bridge deck waterproof layer according to claim 7 further comprises: S1: First, push the cart (1) to the position of the asphalt waterproof layer on the bridge deck that needs to be tested, and slide and fix a suitable number of slide seats (2) along the crossbar (11) according to the width of the asphalt waterproof layer on the bridge deck; S2: Then the two ends of the linkage rod (431) of each slide (2) are respectively connected to the extension rod (35) and the positioning block (6), and the feedback device (3) on each group of slides (2) needs to be connected in series with the marking pen (42) corresponding to each group of positioning grooves (411); S3: restarting the driving motor (453) and simultaneously pushing the cart (1) along the bridge deck to the detection of the entire bridge deck path; S4: removing the paperboard (44), observing the marking lines drawn by the marking pen (42) on the paperboard (44), comparing and evaluating the ripples of multiple groups of marking lines, thereby completing the inspection of the asphalt waterproof layer of the bridge deck, timely discovering construction defects and making rectifications; S5: At the same time, according to the color position of the seal (53) printed on the asphalt waterproof layer of the bridge deck, the position can be accurately located to timely discover construction defects and make corrections, thereby ensuring that the quality of the completed project meets the standards.

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