Equipment for detecting asphalt pavement in highway engineering

Abstract

The invention relates to the technical field of permeability detection, and discloses highway engineering asphalt pavement detection equipment which comprises a base, a mounting seat is mounted on the base through a support, a measuring cylinder and a mounting frame are mounted on the mounting seat, two balancing weights are mounted on the base, a recording device is arranged on the base, and the recording device is connected with the measuring cylinder. The recording device comprises a motor, the output end of the motor is connected with a cam, a sliding groove frame is installed on the top face of the installation base in a sliding mode, a rack is connected to the sliding groove frame, and the recording device further comprises a paper storage assembly. Through the cooperation of the recording device and the paper storage assembly, the recording pen can automatically record the real-time water level height on the recording paper in a timing mode, no staff is needed for guarding, the time of the staff is not delayed, timing recording is conducted at the fixed recording frequency, the recording time is accurate, and the accuracy of test data is high.

Description

Technical Field

[0001] The invention relates to the technical field of permeability detection, and in particular to equipment for detecting asphalt pavement in highway engineering. Background Art

[0002] Asphalt road permeability testing is designed to evaluate the drainage capacity of asphalt pavement to ensure that the road can quickly drain water under weather conditions such as rainfall, prevent waterlogging, and ensure driving safety and road durability. Asphalt pavement testing devices are professional equipment used to test the performance of asphalt pavements. These devices are widely used in the construction of highways, bridges, airport runways, etc. Asphalt pavement testing devices measure the water permeability coefficient by simulating the penetration process of water in the pavement.

[0003] Chinese patent CN112726349B discloses "an asphalt pavement detection device", including a lower base, a connecting pipe is provided at the upper end of the lower base, two weighted pressure blocks are symmetrically installed at the upper end of the lower base on the outside of the connecting pipe, a fixed structure is provided at the upper end of the two weighted pressure blocks, an extrusion block is provided at the lower end of the two weighted pressure blocks, two fixed columns are symmetrically provided at the lower end of the fixed structure, two connecting plates are symmetrically provided on the outer wall of the fixed structure, and a No. 2 spring is provided at the upper end of the two connecting plates. This patent can facilitate the storage of sealant by providing a receiving groove and a leak hole on the lower base, and can facilitate the extrusion of sealant by providing an extrusion block at the lower end of the weighted pressure block, thereby ultimately simplifying the tediousness of asphalt pavement detection and improving the efficiency of asphalt pavement detection.

[0004] However, the prior art has the following problems:

[0005] In actual use of the prior art, workers are required to add water into the measuring cylinder of the asphalt pavement testing device, and then observe and record the water level drop at regular intervals, so as to evaluate the amount of water seepage based on the water level drop per unit time. However, when testing asphalt pavements with poor permeability, workers are required to stay by the device and record regularly due to the long infiltration process, which takes up a lot of their working time. In addition, when the workers temporarily leave for other things, the records may be missing after the recording time due to the temporary absence of the workers. Summary of the invention

[0006] The purpose of the present invention is to provide a highway engineering asphalt pavement detection device in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides an asphalt pavement detection device for highway engineering, comprising a base, a mounting seat is installed on the base through a bracket, a measuring cylinder and a mounting frame are installed on the mounting seat, the measuring cylinder is located on the right side of the mounting frame, two counterweights are installed on the base, the bottom of the measuring cylinder is connected to the base through a pipeline, a valve is provided on the pipeline of the measuring cylinder, and an exhaust hole is provided on the base; a recording device is provided on the base, and the recording device comprises a motor, the motor is installed on the bottom surface of the mounting seat, the output end of the motor passes through the mounting seat, the output end of the motor is connected to a cam, the output end of the motor is connected to the cam, a mounting groove is provided on the cam, a sliding seat is slidably installed in the mounting groove of the cam, a sliding shaft is installed on the sliding seat, a slide slot frame is slidably installed on the top surface of the mounting seat, and a slide slot frame is connected to the slide slot frame The cam is connected to a rack, and a pawl turntable is rotatably installed on the mounting seat, and a ratchet ring is rotatably connected to the pawl turntable, and a convex rod is connected to the pawl turntable, the outer wall of the measuring cylinder is connected to the mounting shaft, and the outer wall of the mounting shaft is rotatably connected to the rotating rod, the bottom of the rotating rod is connected to the first lever, the top outer wall of the measuring cylinder is rotatably connected to the rotating ring, the side wall of the rotating ring is connected to the second lever, and the top surface of the rotating ring is connected to the light rod, and the inner wall of the measuring cylinder is slidably installed with a floating ball and a floating rod through a bracket, the floating ball is connected to the bottom end of the floating rod, the top end of the floating rod is rotatably connected to a rotating frame, and a recording pen is connected to the rotating frame; the recording device also includes a paper storage assembly, and the paper storage assembly includes a mounting cover, the mounting cover is mounted on the mounting frame, and a winding shaft is rotatably installed inside the mounting cover, and recording paper is arranged inside the mounting cover.

[0009] Preferably, a slide slot is provided on the slide slot frame, and the slide slot of the slide slot frame is slidably connected to the slide shaft.

[0010] Preferably, two pawls are provided on the pawl turntable, a toothed ring is provided on the outer wall of the ratchet ring, a ratchet is provided on the inner wall of the ratchet ring, the toothed ring of the ratchet ring is meshed with the rack, and the ratchet of the ratchet ring is in contact with the two pawls.

[0011] Preferably, the protruding rod contacts the first lever during movement, a return spring is arranged between the bottom of the rotating rod and the mounting seat, the top of the rotating rod is arranged to be fork-shaped, the second lever is located on the inner side of the fork-shaped top of the rotating rod, and the end of the rotating frame away from the recording pen is slidably connected to the light rod.

[0012] Preferably, a portion of the recording paper is wound on a winding shaft, a paper outlet is provided on the rear side of the mounting cover, one end of the recording paper away from the winding shaft is located in the paper outlet of the mounting cover, two friction rollers are rotatably installed in the mounting cover, both of the friction rollers are in contact with the recording paper, and the recording pen is in contact with the recording paper during movement.

[0013] Preferably, the recording device also includes an adjusting part, which includes a threaded rod, the threaded rod is rotatably installed in the mounting groove of the cam, the threaded rod is provided with a threaded groove, the slide seat is provided with a threaded hole, the threaded hole of the slide seat is threadedly connected to the threaded groove of the threaded rod, one end of the threaded rod passes through the cam, and the end of the threaded rod located outside the cam is connected to a handwheel.

[0014] The beneficial effects are:

[0015] 1. The equipment for testing asphalt pavement of highway engineering, through the cooperation of recording device and paper storage assembly, enables the recording pen to automatically and regularly record the real-time water level height on the recording paper, without the need for personnel on duty, without delaying the staff's time, and recording regularly at a fixed recording frequency, with accurate recording time and high accuracy of test data; through the setting of the adjustment part, when the staff tests the asphalt pavement with different penetration levels, they can adjust the recording frequency to the recording frequency required by the pavement through the hand wheel, thereby enhancing the applicability of the recording device.

[0016] 2. The equipment for testing asphalt pavement of highway engineering projects, through the setting of the paper changing part, makes the water level in the measuring cylinder reach the lowest point, that is, when the test is completed, the two friction rollers rotate to move the section of the recording paper that has completed the recording out of the installation cover, and move the new section of the recording paper to the position to be recorded, in preparation for the next test, further improving the convenience and reducing the operating steps of the staff; through the setting of the cutting part, when the recording paper that has completed the recording moves to the outside of the installation cover, the cutter can cut the recording paper, so that the recording paper that has completed the recording is separated, which is convenient for the staff to take. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the base structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the recording device of the present invention;

[0021] Figure 4 It is a schematic diagram of the float structure of the present invention;

[0022] Figure 5It is a schematic diagram of the structure of the slide frame of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the ratchet turntable of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the adjustment part of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the mounting frame of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the paper storage assembly of the present invention;

[0027] Fig.10 It is a schematic structural diagram of a paper changing unit of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of the cutting part of the present invention;

[0029] Fig.12 It is a schematic diagram of the second slider structure of the present invention.

[0030] The reference numerals are as follows: 1, base; 2, mounting seat; 3, measuring cylinder; 4, mounting frame; 5, recording device; 51, motor; 52, cam; 53, slide seat; 54, slide shaft; 55, slide slot frame; 56, rack; 57, ratchet turntable; 58, ratchet ring; 59, convex rod; 510, mounting shaft; 511, rotating rod; 512, first lever; 513, rotating ring; 514, second lever; 515, bare rod; 516, floating ball; 517, Floating rod; 518, rotating frame; 519, recording pen; 6, adjusting part; 61, threaded rod; 62, hand wheel; 7, paper storage assembly; 71, mounting cover; 72, take-up shaft; 73, recording paper; 74, friction roller; 8, paper changing part; 81, transmission belt; 82, one-way bending rod; 83, abutment frame; 9, cutting part; 91, rotating seat; 92, cutting knife; 93, first slider; 94, triangular block; 95, second slider; 96, roller; 10, counterweight. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1 - Fig. 9, a highway engineering asphalt pavement detection equipment, including a base 1, a mounting seat 2 is mounted on the base 1 through a bracket, a measuring cylinder 3 and a mounting frame 4 are mounted on the mounting seat 2, the measuring cylinder 3 is located on the right side of the mounting frame 4, two counterweights 10 are mounted on the base 1, the bottom of the measuring cylinder 3 is connected to the base 1 through a pipeline, a valve is arranged on the pipeline of the measuring cylinder 3, and an exhaust hole is arranged on the base 1;A recording device 5 is provided on the base 1, and the recording device 5 includes a motor 51, which is installed on the bottom surface of the mounting seat 2, and the output end of the motor 51 passes through the mounting seat 2, and the output end of the motor 51 is connected to a cam 52, and the output end of the motor 51 is connected to the cam 52, and a mounting groove is provided on the cam 52, and a slide seat 53 is slidably installed in the mounting groove of the cam 52, and a slide shaft 54 ​​is installed on the slide seat 53, and a slide slot frame 55 is slidably installed on the top surface of the mounting seat 2, and a slide slot is provided on the slide slot frame 55, and the slide slot of the slide slot frame 55 is slidably connected with the slide shaft 54, and the cam 52 drives the slide shaft 54 ​​to rotate through the slide seat 53, and when the slide shaft 54 ​​rotates, the slide slot frame 55 is driven to reciprocate forward and backward through the slide slot, and the slide slot frame 55 is connected to a rack 56 The slide frame 55 drives the rack 56 to move back and forth, and a pawl turntable 57 is rotatably installed on the mounting seat 2, and a ratchet ring 58 is rotatably connected to the pawl turntable 57. Two pawls are arranged on the pawl turntable 57, and a toothed ring is arranged on the outer wall of the ratchet ring 58, and a ratchet is arranged on the inner wall of the ratchet ring 58. The toothed ring of the ratchet ring 58 is meshed with the rack 56, and the ratchet of the ratchet ring 58 contacts the two pawls. The rack 56 can drive the pawl turntable 57 to rotate intermittently clockwise through the ratchet ring 58 by reciprocating back and forth. A convex rod 59 is connected to the pawl turntable 57, and the outer wall of the measuring cylinder 3 is connected to the mounting shaft 510, and the outer wall of the mounting shaft 510 is rotatably connected to the rotating rod 511, and the bottom of the rotating rod 511 is connected to the first shifting rod 51 2, the protruding rod 59 contacts the first lever 512 during the movement, and the pawl rotating disk 57 rotates one circle. The protruding rod 59 above it pushes the bottom of the rotating rod 511 backward through the first lever 512, and a reset spring is arranged between the bottom of the rotating rod 511 and the mounting seat 2. After the rotating rod 511 swings, it is reset by the elastic force of the reset spring, and the top outer wall of the measuring cylinder 3 is rotatably connected with a rotating ring 513, and the side wall of the rotating ring 513 is connected with a second lever 514, and the top of the rotating rod 511 is set to be fork-shaped, and the second lever 514 is located on the inner side of the fork-shaped top of the rotating rod 511. The fork-shaped top of the rotating rod 511 pushes the second lever 514 forward, and the top surface of the rotating ring 513 is connected with a light rod 515, and the inner wall of the measuring cylinder 3 slides through the bracket A floating ball 516 and a floating rod 517 are dynamically installed, the floating ball 516 is connected to the bottom end of the floating rod 517, the top end of the floating rod 517 is rotatably connected to a rotating frame 518, a recording pen 519 is connected to the rotating frame 518, and the end of the rotating frame 518 away from the recording pen 519 is slidably connected to the light rod 515. When the second lever 514 swings forward, it drives the swivel 513 to rotate clockwise by a certain angle, and the swivel 513 drives the light rod 515 to rotate synchronously. When the light rod 515 rotates, it drives the rotating frame 518 to rotate. When the water level in the measuring cylinder 3 drops, the floating ball 516 and the floating rod 517 drop synchronously, and the floating rod 517 drives the rotating frame 518 and the recording pen 519 above it to drop. When the rotating frame 518 rotates, the rotating frame 518 drives the recording pen 519 to rotate.The recording device 5 also includes a paper storage assembly 7, which includes a mounting cover 71, which is mounted on the mounting frame 4, a reel 72 is rotatably mounted inside the mounting cover 71, a recording paper 73 is arranged inside the mounting cover 71, a part of the recording paper 73 is wound around the reel 72, a paper outlet is arranged at the rear side of the mounting cover 71, one end of the recording paper 73 away from the reel 72 is located in the paper outlet of the mounting cover 71, two friction rollers 74 are rotatably mounted inside the mounting cover 71, both friction rollers 74 are in contact with the recording paper 73, the two friction rollers 74 prop up the recording paper 73 from the inside of the mounting cover 71, so that the surface of the recording paper 73 is flat, and the recording pen 519 is in the process of movement. The recording pen 519 contacts the recording paper 73 in the measuring cylinder 3. The height change of the recording pen 519 represents the height change of the water level in the measuring cylinder 3. The recording paper 73 is provided with scale lines. The recording pen 519 records the real-time water level on the recording paper 73 through a reciprocating motion. Since the time for the ratchet turntable 57 to rotate one circle is fixed, the recording pen 519 can record the scale data once every fixed time period. Through the cooperation of the recording device 5 and the paper storage component 7, the recording pen 519 can automatically and regularly record the real-time water level height on the recording paper 73, without the need for personnel on duty, and does not delay the staff's time. It also records regularly at a fixed recording frequency, with accurate recording time and high accuracy of test data. ;

[0034] For further information, see Figure 6 - Figure 7 The recording device 5 also includes an adjusting portion 6, which includes a threaded rod 61. The threaded rod 61 is rotatably mounted in the mounting groove of the cam 52. The threaded rod 61 is provided with a threaded groove, and the slide 53 is provided with a threaded hole. The threaded hole of the slide 53 is threadedly connected with the threaded groove of the threaded rod 61. One end of the threaded rod 61 passes through the cam 52, and the end of the threaded rod 61 located outside the cam 52 is connected with a hand wheel 62. The threaded rod 61 is rotated by the hand wheel 62. When the threaded rod 61 is rotated, the slide 53 can be driven to move left or right through the cooperation of the threaded groove and the threaded hole, thereby adjusting the distance between the slide shaft 54 ​​and the rotation center of the cam 52, and the distance between the cam 52 and the rotation center The distance is proportional to the reciprocating distance of the slide frame 55. When the slide frame 55 reciprocates in a single motion, the larger the angle of rotation of the pawl turntable 57 driven by the rack 56 and the ratchet ring 58, the faster the frequency of the rotating rod 511 being turned, and the smaller the angle of single rotation of the pawl turntable 57, the lower the frequency of the rotating rod 511 being turned, and the longer the interval time between two records of the recording pen 519, thereby achieving the effect of adjusting the recording frequency; through the setting of the adjustment part 6, when the staff tests asphalt pavements with different penetration levels, they can adjust the recording frequency to the recording frequency required by the pavement through the hand wheel 62, thereby enhancing the applicability of the recording device 5.

[0035] Further, see Fig. 9 - Fig.10 The paper storage assembly 7 also includes a paper changing unit 8, which includes a transmission belt 81. The bottom ends of the two friction rollers 74 penetrate the bottom surface of the mounting cover 71. The bottom ends of the two friction rollers 74 are connected to pulleys. The transmission belt 81 is sleeved on the pulleys of the two friction rollers 74. The outer wall of the transmission belt 81 is connected to a plurality of one-way bending rods 82. The one-way bending rod 82 is divided into two short rods. The two short rods are connected by a hinge. A limit block is provided on one side between the two short rods. A reset coil spring is also provided between them, so that the one-way bending rod 82 can only bend forward and automatically reset after bending. The rotating frame 518 is connected with a contact frame 83, and the contact frame 83 contacts one of the one-way bending rods 82 during movement. When the water level in the measuring cylinder 3 drops to the lowest water level, the rotating frame 518 also moves to the lowest position. After that, when the recording pen 519 starts to contact the recording paper 73, the contact frame 83 contacts the one-way bending rod 82 when moving backward. When the one-way bending rod 82 is pushed backward, the one-way bending rod 82 moves backward, which drives the transmission belt 81 to rotate, and the transmission belt 81 drives the two friction rollers 74 to rotate. There is a large friction force between the two friction rollers 74 and the recording paper 73, so that the two friction rollers 74 push the recording paper 73 backward when they rotate, so that the recording paper 73 is pulled out a distance along the paper outlet of the mounting cover 71, so that the recording paper 73 that completes the current detection record is automatically pulled out of the mounting cover 71, and the new recording paper 73 is moved to the movement trajectory of the recording pen 519 to prepare for the next recording; through the setting of the paper changing part 8, the water level in the measuring cylinder 3 reaches the lowest point, that is, when the current test is completed, the two friction rollers 74 rotate to move the section of the recording paper 73 that completes the recording out of the mounting cover 71, and move the new section of the recording paper 73 to the position to be recorded, in preparation for the next detection, further improving the convenience and reducing the operating steps of the staff.

[0036] For further information, see Fig.11 - Fig.12The paper storage assembly 7 also includes a cutting portion 9, which includes a swivel seat 91. The swivel seat 91 is rotatably mounted on the rear side of the mounting cover 71. The swivel seat 91 is located above the paper outlet of the mounting cover 71. A first slider 93 is slidably mounted on the outer wall below the paper outlet of the mounting cover 71. A cutter 92 is connected between the first slider 93 and the swivel seat 91. A second slider 95 is slidably mounted on the right outer wall of the mounting cover 71. A roller 96 is connected to the second slider 95. The abutment frame 83 contacts the second slider 95 during movement. The roller 96 is slidably connected to the triangular block 94. A reset spring is arranged between the triangular block 94 and the mounting cover 71. When the abutment frame 83 is about to move backward into place, the abutment frame 83 contacts the second slider 95 and pushes it backward When the second slider 95 moves backward, it drives the roller 96 to move backward. When the roller 96 moves backward, it pushes the triangular block 94 to the left through the inclined surface of the triangular block 94. The triangular block 94 drives the first slider 93 to move left. When the first slider 93 moves left, it drives the cutter 92 to swing left with the rotating seat 91 as the center. The cutter 92 contacts the recording paper 73 during the movement. During the swinging process of the cutter 92, the recording paper 73 is cut along the paper outlet, so that the recording paper 73 with completed recording is separated. Through the setting of the cutting part 9, when the recording paper 73 with completed recording moves to the outside of the mounting cover 71, the cutter 92 can cut the recording paper 73, so that the recording paper 73 with completed recording is separated, which is convenient for the staff to take.

[0037] With the above structure, the working principle of this case is that the staff first applies a circle of sealing layer on the test point with sealing material, presses the base 1 on the sealing layer, removes the two counterweights 10, adds water to the measuring cylinder 3, opens the valve of the pipeline below the measuring cylinder 3, and allows water to enter the gap between the base 1 and the road surface through the pipeline. After the water discharges the gas in the gap through the exhaust hole on the base 1, the valve is closed and clean water is added again to make the water level reach the top scale line. At this time, the float 516 drives the float rod 517 to float up. After confirming again that the sealing layer is leak-proof, the motor 51 and the valve are turned on, and the two counterweights 10 are installed again. The test starts, and the motor 51 drives the cam 52 to rotate, and the cam 52 drives the slide shaft 54 ​​to rotate through the slide seat 53. When the slide shaft 54 ​​rotates, the slide slot frame 55 is driven to move back and forth through the slide slot, and the slide slot frame 55 drives the rack 56 to move back and forth. When the rack 56 moves forward, the rack 56 drives the ratchet ring 58 to rotate clockwise through the gear ring. When the ratchet ring 58 rotates clockwise, the two pawls are clamped by the ratchet and the ratchet pawl rotating disk 57 is driven to rotate clockwise through the two pawls. When the rack 56 moves backward, the rack 56 drives the ratchet ring 58 to rotate counterclockwise through the gear ring. When the ratchet ring 58 rotates counterclockwise, the two pawls slide on the ratchet through their own elastic force, so that the ratchet ring 58 cannot drive the ratchet pawl rotating disk 57 to rotate counterclockwise when it rotates counterclockwise, thereby achieving the goal that the rack 56 can be reciprocated back and forth. The ratchet ring 58 drives the pawl turntable 57 to rotate intermittently clockwise. During the process of the pawl turntable 57 rotating one circle, the protruding rod 59 above it pushes the bottom of the rotating rod 511 backward through the first lever 512, so that the fork-shaped top of the rotating rod 511 pushes the second lever 514 forward. After the rotating rod 511 swings, it is reset by the elastic force of the reset spring. When the second lever 514 swings forward, it drives the rotating ring 513 to rotate clockwise by a certain angle. The rotating ring 513 drives the light rod 515 to rotate synchronously. When the light rod 515 rotates, it drives the rotating frame 518 to rotate. When the water level in the measuring cylinder 3 drops, the floating ball 516 and the floating rod 517 drop synchronously. The floating rod 517 drives the rotating frame 518 and the recording pen 51 above it. 9 descends, when the rotating frame 518 rotates, the rotating frame 518 drives the recording pen 519 to rotate, so that the end of the recording pen 519 draws a mark on the recording paper 73 during the movement. After the rotating rod 511 is reset, the rotating rod 511 drives the second lever 514 to reset through the fork-shaped top, and the light rod 515, the rotating frame 518 and the recording pen 519 are reset accordingly. The height change of the recording pen 519 represents the height change of the water level in the measuring cylinder 3. The recording paper 73 is provided with scale lines. The recording pen 519 records the real-time water level on the recording paper 73 through a reciprocating motion. Since the time for the ratchet turntable 57 to rotate one circle is fixed, the effect of the recording pen 519 being able to record scale data once every fixed time period is achieved;For road surfaces with different penetration strengths, the frequency of timed recording is different. The staff can rotate the threaded rod 61 through the hand wheel 62. When the threaded rod 61 rotates, it can drive the slide 53 to move left or right through the cooperation of the threaded groove and the threaded hole, thereby adjusting the distance between the slide shaft 54 ​​and the rotation center of the cam 52. The distance between the cam 52 and the rotation center is proportional to the reciprocating distance of the slide frame 55. The farther the cam 52 is from the center of the circle, the farther the single reciprocating distance of the slide frame 55 is. When the slide frame 55 reciprocates in a single motion, the greater the angle of rotation of the ratchet turntable 57 driven by the rack 56 and the ratchet ring 58, the frequency of the rotating rod 511 being turned will increase accordingly, and the interval time between two records of the recording pen 519 will be smaller. Conversely, the cam 5 2. The smaller the angle of the ratchet turntable 57 in a single rotation, the lower the frequency of the turning rod 511 being turned, and the longer the interval between two records of the recording pen 519, achieving the effect of adjusting the recording frequency; through the cooperation of the recording device 5 and the paper storage component 7, the recording pen 519 can automatically and regularly record the real-time water level height on the recording paper 73, without the need for personnel on duty, without delaying the staff's time, and recording regularly at a fixed recording frequency, the recording time is accurate, and the test data is highly accurate; through the setting of the adjustment part 6, when the staff tests the asphalt pavement with different penetration levels, they can adjust the recording frequency to the recording frequency required by the pavement through the hand wheel 62, thereby enhancing the applicability of the recording device 5. ;

[0038] The two friction rollers 74 prop up the recording paper 73 from the inside of the mounting cover 71 to make the surface of the recording paper 73 flat. When the water level in the measuring cylinder 3 drops to the lowest water level, the rotating frame 518 also moves to the lowest position. After that, when the recording pen 519 begins to contact the recording paper 73, the rotating frame 518 drives the abutment frame 83 and the recording pen 519 to rotate synchronously. When the abutment frame 83 rotates, it contacts one of the one-way bending rods 82. The one-way bending rod 82 is divided into two short rods, which are connected by a hinge. A limit block is provided on one side between the two short rods, and a reset coil spring is also provided between the two short rods, so that the one-way bending rod 82 can only bend forward and automatically reset after bending. The folding rod 82 cannot bend backwards. When the abutment frame 83 moves backwards and contacts the one-way bending rod 82, the one-way bending rod 82 is pushed backwards. When the one-way bending rod 82 moves backwards, it drives the transmission belt 81 to rotate. The transmission belt 81 drives the two friction rollers 74 to rotate. There is a large friction force between the two friction rollers 74 and the recording paper 73, so that when the two friction rollers 74 rotate, the recording paper 73 is pushed backwards, so that the recording paper 73 is pulled out along the paper outlet of the mounting cover 71 for a distance, and the winding shaft 72 rotates accordingly, so that the recording paper 73 that completes the current detection record is automatically pulled out of the mounting cover 71, and the new recording paper 73 moves to the movement trajectory of the recording pen 519 to prepare for the next record. When the contact frame 83 starts to reset, the next one-way bending rod 82 moves to the position of the one-way bending rod 82 that it contacted before, and contacts the next one-way bending rod 82 during the process of the contact frame 83 resetting. When the contact frame 83 contacts the one-way bending rod 82, the one-way bending rod 82 bends forward to offset the thrust of the contact frame 83, so that the one-way bending rod 82 remains in place and does not move forward with the contact frame 83, preparing for the next test. While the contact frame 83 pushes the one-way bending rod 82 backward, when the contact frame 83 is about to move backward into place, the contact frame 83 contacts the second slider 95 and pushes it backward. When the second slider 95 moves backward, it drives the roller 96 to move backward, and the roller 96 moves When moving backward, the inclined surface of the triangular block 94 pushes the triangular block 94 to the left, and the triangular block 94 drives the first slider 93 to move to the left. When the first slider 93 moves to the left, it drives the cutter 92 to swing to the left with the rotating seat 91 as the center. When the cutter 92 swings, the recording paper 73 is about to complete the extraction process. During the swinging process of the cutter 92, the recording paper 73 is cut along the paper outlet, so that the recording paper 73 after recording is separated. The staff can install a storage bag under the paper outlet so that the recording paper 73 falls into the storage bag after cutting, which is convenient for the staff to take. After the abutment frame 83 is reset, the first slider 93 is reset by the elastic force of the reset spring, and the triangular block 94 drives the second slider 95 to reset through the roller 96;By setting the paper changing part 8, when the water level in the measuring cylinder 3 reaches the lowest point, that is, when the test is completed, the two friction rollers 74 rotate to move the recording paper 73 that has completed the recording out of the mounting cover 71, and move the new recording paper 73 to the position to be recorded, so as to prepare for the next test, further improving the convenience and reducing the operation steps of the staff; by setting the cutting part 9, when the recording paper 73 that has completed the recording moves to the outside of the mounting cover 71, the cutter 92 can cut the recording paper 73, so that the recording paper 73 that has completed the recording is separated, so that the staff can take it easily. ;

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for detecting asphalt pavement in highway engineering, comprising a base (1), characterized in that: The base (1) is provided with a mounting seat (2) via a bracket, a measuring cylinder (3) and a mounting frame (4) are mounted on the mounting seat (2), the measuring cylinder (3) is located on the right side of the mounting frame (4), two counterweights (10) are mounted on the base (1), the bottom of the measuring cylinder (3) is connected to the base (1) via a pipeline, a valve is provided on the pipeline of the measuring cylinder (3), and an exhaust hole is provided on the base (1).

2. The asphalt pavement detection equipment for highway engineering according to claim 1, characterized in that: The base (1) is provided with a recording device (5), the recording device (5) comprising a motor (51), the motor (51) being mounted on the bottom surface of the mounting seat (2), the output end of the motor (51) passing through the mounting seat (2), the output end of the motor (51) being connected with a cam (52), the output end of the motor (51) being connected with the cam (52), the cam (52) being provided with a mounting groove, a slide seat (53) being slidably mounted in the mounting groove of the cam (52), a slide shaft (54) being mounted on the slide seat (53), a slide slot frame (55) being slidably mounted on the top surface of the mounting seat (2), and a rack (56) being connected to the slide slot frame (55).

3. The asphalt pavement detection equipment for highway engineering according to claim 2, characterized in that: A ratchet rotating disk (57) is rotatably mounted on the mounting seat (2), a ratchet ring (58) is rotatably connected to the ratchet rotating disk (57), a protruding rod (59) is connected to the ratchet rotating disk (57), an outer wall of the measuring cylinder (3) is connected to a mounting shaft (510), an outer wall of the mounting shaft (510) is rotatably connected to a rotating rod (511), and a first shifting rod (512) is connected to the bottom of the rotating rod (511).

4. The asphalt pavement detection equipment for highway engineering according to claim 3, characterized in that: The top outer wall of the measuring cylinder (3) is rotatably connected to a rotating ring (513), the side wall of the rotating ring (513) is connected to a second lever (514), the top surface of the rotating ring (513) is connected to a light rod (515), the inner wall of the measuring cylinder (3) is slidably mounted with a floating ball (516) and a floating rod (517) through a bracket, the floating ball (516) is connected to the bottom end of the floating rod (517), the top end of the floating rod (517) is rotatably connected to a rotating frame (518), and a recording pen (519) is connected to the rotating frame (518).

5. The asphalt pavement testing equipment for highway engineering according to claim 4, characterized in that: The recording device (5) further comprises a paper storage assembly (7), wherein the paper storage assembly (7) comprises a mounting cover (71), wherein the mounting cover (71) is mounted on the mounting frame (4), wherein a reel-up shaft (72) is rotatably mounted inside the mounting cover (71), and wherein recording paper (73) is arranged inside the mounting cover (71).

6. The asphalt pavement testing equipment for highway engineering according to claim 5, characterized in that: The slide slot frame (55) is provided with a slide slot, and the slide slot of the slide slot frame (55) is slidably connected to the slide shaft (54).

7. The asphalt pavement testing equipment for highway engineering according to claim 6, characterized in that: The ratchet rotating disk (57) is provided with two ratchets, the outer wall of the ratchet ring (58) is provided with a toothed ring, the inner wall of the ratchet ring (58) is provided with a ratchet, the toothed ring of the ratchet ring (58) is meshed with the rack (56), and the ratchet of the ratchet ring (58) is in contact with the two ratchets.

8. The asphalt pavement testing equipment for highway engineering according to claim 7, characterized in that: The protruding rod (59) contacts the first lever (512) during movement, a return spring is arranged between the bottom of the rotating rod (511) and the mounting seat (2), the top of the rotating rod (511) is arranged to be fork-shaped, the second lever (514) is located on the inner side of the fork-shaped top of the rotating rod (511), and the end of the rotating frame (518) away from the recording pen (519) is slidably connected to the light rod (515).

9. The asphalt pavement testing equipment for highway engineering according to claim 8, characterized in that: A portion of the recording paper (73) is wound on the winding shaft (72), a paper outlet is arranged on the rear side of the mounting cover (71), one end of the recording paper (73) away from the winding shaft (72) is located in the paper outlet of the mounting cover (71), two friction rollers (74) are rotatably mounted in the mounting cover (71), both of the friction rollers (74) are in contact with the recording paper (73), and the recording pen (519) is in contact with the recording paper (73) during movement.

10. The asphalt pavement testing equipment for highway engineering according to claim 9, characterized in that: The recording device (5) further comprises an adjusting portion (6), wherein the adjusting portion (6) comprises a threaded rod (61), wherein the threaded rod (61) is rotatably mounted in a mounting groove of a cam (52), wherein a threaded groove is arranged on the threaded rod (61), wherein a threaded hole is arranged on the slide seat (53), wherein the threaded hole of the slide seat (53) is threadedly connected with the threaded groove of the threaded rod (61), wherein one end of the threaded rod (61) passes through the cam (52), and wherein the end of the threaded rod (61) located outside the cam (52) is connected with a hand wheel (62).

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