Pavement structure layer thickness detection device

Abstract

The utility model discloses a pavement structure layer thickness detection device, which relates to the technical field of pavement detection, and comprises a protective cylinder, the upper surface of the protective cylinder is fixedly connected with a leather handle, the outer wall of the upper part of the protective cylinder is fixedly connected with a protective rubber sleeve I, and the outer wall of the lower part of the protective cylinder is fixedly connected with a supporting assembly. Two marking rulers are fixedly connected to the front face of the outer wall of the protection cylinder and located between the supporting assembly and the first protection rubber sleeve. According to the pavement structure layer thickness detection device of the utility model, the detection rod can move downwards under the limitation of the limiting block under the action of the turn button and the threaded rod, and then the movement distance of the detection rod can be marked according to the marking ruler under the action of the indication block, so that detection personnel can know the pavement structure thickness conveniently, and the detection efficiency is improved. Meanwhile, under the action of the four balance supporting plates, the supporting area of the lower surface of the protective cylinder is increased, and therefore it can be guaranteed that the protective cylinder is perpendicular to the ground stably during detection.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface detection, in particular to a road surface structure layer thickness detection device. Background Art

[0002] In road engineering, the thickness of the pavement structure layer is closely related to the overall strength and service life of the road. In pavement design, no matter what design indicators are used, the thickness of each structural layer must be determined in the end. Only under the premise of ensuring the thickness of each structural layer can the strength and performance of each layer and the entire pavement be brought into play. The thickness of the pavement structure layer is one of the important indicators in the detection and evaluation of road engineering indicators, service life prediction and maintenance management decision-making. Most of the time, the detection is carried out by inserting the measuring rod into the opened detection hole and taking manual readings.

[0003] Chinese patent document CN221375063U discloses a pavement structure layer thickness detection device, which relates to the field of pavement detection and includes a mounting plate, four adjustment support assemblies fixedly mounted on the side of the mounting plate, a spirit level fixedly mounted on the rear end of the top of the mounting plate, a detection rod movably connected to the middle end of the interior of the mounting plate, and a fastening handle mounted on the outside of the detection rod. The utility model adjusts the horizontality of the mounting plate after the mounting plate is set up by adjusting the support assembly and then adjusting the horizontality with the spirit level, thereby ensuring the verticality of the detection rod to the road surface and the wall of the detection hole, preventing the detection rod from tilting, and facilitating the measurement of the pavement structure layer thickness. At the same time, the auxiliary assembly is used to illuminate the detection rod and capture the image for display when the detection rod is inserted into the detection hole, thereby accurately controlling the movement of the detection rod, providing more information to the detection personnel, improving the accuracy of manual readings, and reducing errors.

[0004] The existing technology has the following problems:

[0005] When the pavement structure layer thickness detection device is in use, it cannot detect the thickness of the pavement well. At the same time, it cannot ensure the stability of the device when placed during detection, which affects the detection results. In addition, when the pavement structure layer thickness detection device is in use, it is not easy to fold and store, which affects mobile transportation and cannot play a good protective role. Utility Model Content

[0006] The utility model provides a device for detecting the thickness of a pavement structure layer, so as to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A pavement structure layer thickness detection device includes a protective tube, the upper surface of the protective tube is fixedly connected to a leather handle, the outer wall of the upper part of the protective tube is fixedly connected to a protective rubber sleeve, the outer wall of the lower part of the protective tube is fixedly connected to a support assembly, two marking rulers are fixedly connected to the front of the outer wall of the protective tube and the two marking rulers are located between the support assembly and the protective rubber sleeve, and a detection assembly is fixedly installed on the inner wall of the protective tube.

[0009] Preferably, the support assembly includes a limiting assembly, the inner wall of the limiting assembly is fixedly installed on the outer wall of the protective tube, the front, rear, left and right parts of the inner wall of the limiting assembly are overlapped with balancing assemblies, the outer walls of the four balancing assemblies away from the inner wall of the limiting assembly are respectively fixedly connected to the inner cavity of the protective tube, the lower parts of the outer walls of the four balancing assemblies are fixedly connected to a fixing seat, the upper surface of the fixing seat is fixedly connected to the lower surface of the protective tube, and the lower surface of the fixing seat is fixedly connected to a rubber pad 2.

[0010] Preferably, the detection assembly includes a detection rod, the outer wall of the detection rod is movably connected to the inner wall of the protective tube, the front of the outer wall of the detection rod is fixedly connected to a limit block, the outer wall of the limit block is slidably connected to the inner wall of the protective tube, the front of the limit block is fixedly connected to an indicator block, and the rear ends of the left and right parts of the indicator block are respectively overlapped with the front ends of two marking rulers.

[0011] Preferably, the four balancing assemblies include four fixed shells, the outer walls of the four fixed shells are respectively fixedly connected to the inner cavity of the protective tube, the lower parts of the inner walls of the four fixed shells are rotatably connected to the balancing support plates, and the lower surfaces of the four balancing support plates are fixedly connected to a rubber pad.

[0012] Preferably, the limiting assembly includes a threaded sleeve, the inner wall of the threaded sleeve is fixedly connected to the outer wall of the protective tube, the outer wall of the limiting assembly is threadedly connected to the limiting sleeve, the front, rear, left and right parts of the lower surface of the limiting sleeve are fixedly connected with arc-shaped limiting support plates, the inner walls of the four arc-shaped limiting support plates are respectively movably connected to the outer walls of the protective tube and the four balance support plates, and the lower surfaces of the four arc-shaped limiting support plates are respectively overlapped with the upper surfaces of the relative parts of the four balance support plates.

[0013] Preferably, the outer wall of the limiting sleeve is fixedly connected to the protective rubber sleeve 2, and the outer wall of the protective rubber sleeve 2 and the outer wall of the protective rubber sleeve 1 are located on the same horizontal line.

[0014] Preferably, the inner wall of the detection rod is threadedly connected to a threaded rod, the outer wall of the upper part of the threaded rod is rotatably connected to the inner cavity of the upper part of the protective tube, and the upper surface of the threaded rod is fixedly connected to a knob and the knob is located on the upper surface of the protective tube.

[0015] Preferably, rubber protective pads are fixedly connected to the upper and lower sides of the limit block, and a rubber sleeve is fixedly connected to the outer wall of the lower part of the detection rod.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] 1. The utility model provides a device for detecting the thickness of a pavement structure layer. By turning a knob, the threaded rod can be rotated, so that the detection rod can move downward under the limit of a limit block. Then, under the action of an indicator block, the moving distance of the detection rod can be marked according to a marking ruler, so that the detection personnel can understand the thickness of the pavement structure and thus perform thickness detection on the pavement. At the same time, through the action of four balancing support plates, the support area of ​​the lower surface of the protective tube is increased, so that the vertical stability of the protective tube and the ground can be guaranteed during detection, thereby ensuring the accuracy of the detection results.

[0018] 2. The utility model provides a pavement structure layer thickness detection device. Through the action of a limiting sleeve, a threaded sleeve and an arc-shaped limiting support plate, the four rubber pads 1 can be supported and fixed after being rotated and unfolded, so that they are easy to fold and unfold when in use, occupying a small area, and are easy to move and store. In addition, under the action of the protective rubber sleeve 2 and the protective rubber sleeve 1, the protective tube can have certain support and protection when folded and placed, thereby preventing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the expanded structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the folding structure of the utility model;

[0021] Figure 3 This is a bottom-up structural diagram of the support assembly of the present invention;

[0022] Figure 4 This is a bottom-up structural diagram of the balancing assembly of the present invention;

[0023] Figure 5 This is a side sectional structural diagram of the utility model;

[0024] Figure 6 For this utility model Figure 5 A in the middle is an enlarged structural diagram;

[0025] Figure 7 This is a schematic diagram of the split structure of the limit assembly and the balance assembly of the utility model;

[0026] Figure 8 This is a schematic side sectional structural diagram of the detection assembly of the present invention.

[0027] In the figure: 1. Protective tube; 2. Support assembly; 3. Detection assembly; 4. Marking ruler; 5. Leather handle; 6. Protective rubber sleeve 1; 21. Limit assembly; 211. Threaded sleeve; 212. Limit sleeve; 213. Protective rubber sleeve 2; 214. Arc-shaped limit support plate; 22. Balance assembly; 221. Fixed shell; 222. Balance support plate; 223. Rubber pad 1; 23. Fixed seat; 24. Rubber pad 2; 31. Detection rod; 32. Limit block; 33. Indicator block; 34. Rubber sleeve; 35. Threaded rod; 36. Knob. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figure 1 、 Figure 2 As shown, a pavement structure layer thickness detection device includes a protective tube 1, a leather handle 5 is fixedly connected to the upper surface of the protective tube 1, a protective rubber sleeve 6 is fixedly connected to the outer wall of the upper portion of the protective tube 1, a support assembly 2 is fixedly connected to the outer wall of the lower portion of the protective tube 1, two marking rulers 4 are fixedly connected to the front of the outer wall of the protective tube 1 and the two marking rulers 4 are located between the support assembly 2 and the protective rubber sleeve 6, and a detection assembly 3 is fixedly installed on the inner wall of the protective tube 1;

[0030] First, the protective tube 1 is supported on the ground by the support component 2, and then moved above the hole. Then, the depth of the hole is detected by the detection component 3 and the marking ruler 4. The outer wall of the protective tube 1 is supported and protected by the protective rubber sleeve 6, so that it is easy to place and transport.

[0031] like Figure 3 As shown, the support assembly 2 includes a limit assembly 21, the inner wall of the limit assembly 21 is fixedly installed with the outer wall of the protective tube 1, and the front, rear, left and right parts of the inner wall of the limit assembly 21 are overlapped with a balance assembly 22. The outer walls of the four balance assemblies 22 away from the inner wall of the limit assembly 21 are respectively fixedly connected to the inner cavity of the protective tube 1, and the lower parts of the outer walls of the four balance assemblies 22 are fixedly connected with a fixing seat 23. The upper surface of the fixing seat 23 is fixedly connected to the lower surface of the protective tube 1, and the lower surface of the fixing seat 23 is fixedly connected with a rubber pad 24;

[0032] Through the action of the fixing seat 23 and the rubber pad 24, the lower surface of the protective tube 1 can be protected to a certain extent, thereby preventing direct collision with the road surface during detection, and also playing an anti-slip role.

[0033] like Figure 4As shown, the four balancing assemblies 22 include four fixed shells 221, the outer walls of the four fixed shells 221 are respectively fixedly connected to the inner cavity of the protective tube 1, the lower parts of the inner walls of the four fixed shells 221 are rotatably connected to the balancing support plates 222, and the lower surfaces of the four balancing support plates 222 are fixedly connected to the rubber pads 223;

[0034] Through the action of the four balancing support plates 222, the support area of ​​the lower surface of the protective tube 1 is increased, so that the vertical stability of the protective tube 1 and the ground can be guaranteed during detection, thereby ensuring the accuracy of the detection results. At the same time, under the action of the rubber pad 223, there is a certain degree of protection between the lower surface of the balancing support plate 222 and the road surface.

[0035] like Figure 5 As shown, the detection assembly 3 includes a detection rod 31, the outer wall of the detection rod 31 is movably connected to the inner wall of the protective tube 1, the front of the outer wall of the detection rod 31 is fixedly connected to a limit block 32, the outer wall of the limit block 32 is slidably connected to the inner wall of the protective tube 1, and the front of the limit block 32 is fixedly connected to an indicator block 33, and the rear ends of the left and right parts of the indicator block 33 are respectively overlapped with the front ends of the two marking rulers 4;

[0036] Through the action of the limit block 32, the detection rod 31 can only move up and down in the inner cavity of the protective tube 1, thereby playing the role of limiting guidance. At the same time, under the action of the indicator block 33, the moving distance of the detection rod 31 can be marked according to the marking ruler 4, so as to facilitate the detection personnel to understand the thickness of the pavement structure.

[0037] like Figure 6 As shown, the limiting assembly 21 includes a threaded sleeve 211, the inner wall of the threaded sleeve 211 is fixedly connected to the outer wall of the protective tube 1, the outer wall of the limiting assembly 21 is threadedly connected to the limiting sleeve 212, and the front, rear, left and right parts of the lower surface of the limiting sleeve 212 are fixedly connected with arc-shaped limiting support plates 214, the inner walls of the four arc-shaped limiting support plates 214 are movably connected to the outer walls of the protective tube 1 and the four balancing support plates 222, respectively, and the lower surfaces of the four arc-shaped limiting support plates 214 are overlapped with the upper surfaces of the corresponding parts of the four balancing support plates 222;

[0038] By rotating the limiting sleeve 212, the limiting sleeve 212 can drive the four arc-shaped limiting support plates 214 to move upward under the action of the threaded sleeve 211. When the limiting sleeve 212 moves up to the top of the four balancing support plates 222 and the inner walls of the four arc-shaped limiting support plates 214 are intertwined with the outer walls of the four balancing support plates 222, the four balancing support plates 222 can be rotated to move to the road surface so that the lower surfaces of the four rubber pads 223 can overlap with the road surface. Then, the limiting sleeve 212 is rotated in the opposite direction again to move the limiting sleeve 212 and the four arc-shaped limiting support plates 214 downward, so that the lower surfaces of the four arc-shaped limiting support plates 214 can overlap with the upper surfaces of the four rotated balancing support plates 222, thereby limiting and supporting the balancing support plates 222. This makes it easy to fold and unfold when in use, occupies a small area, and is easy to move and store.

[0039] like Figure 7 As shown, the outer wall of the limiting sleeve 212 is fixedly connected to the protective rubber sleeve 213, and the outer wall of the protective rubber sleeve 213 is located on the same horizontal line as the outer wall of the protective rubber sleeve 1 6;

[0040] Through the functions of the second protective rubber sleeve 213 and the first protective rubber sleeve 6, the protective tube 1 can be supported and protected to a certain extent when folded and placed, thereby preventing damage.

[0041] like Figure 8 As shown, the inner wall of the detection rod 31 is threadedly connected to a threaded rod 35, the outer wall of the upper part of the threaded rod 35 is rotatably connected to the inner cavity of the upper part of the protective tube 1, and the upper surface of the threaded rod 35 is fixedly connected to a knob 36, and the knob 36 is located on the upper surface of the protective tube 1;

[0042] By turning the knob 36 , the threaded rod 35 can be rotated, so that the detection rod 31 can move downward under the limit of the limit block 32 , thereby detecting the thickness of the road surface.

[0043] The upper and lower sides of the limit block 32 are fixedly connected with rubber protective pads, and the outer wall of the lower part of the detection rod 31 is fixedly connected with a rubber sleeve 34;

[0044] Through the action of the rubber protective pad, the limit block 32 will not collide with the inner wall of the protective tube 1 when limiting the detection rod 31. At the same time, under the action of the rubber sleeve 34, the detection rod 31 can also be protected to a certain extent when moving downward for measurement, thereby playing a protective role.

[0045] The working principle of the present invention is as follows: first, by rotating the limiting sleeve 212, the limiting sleeve 212 can drive the four arc-shaped limiting support plates 214 to move up under the action of the threaded sleeve 211, and when the limiting sleeve 212 moves up to the top of the four balancing support plates 222 and the inner walls of the four arc-shaped limiting support plates 214 are staggered with the outer walls of the four balancing support plates 222, the four balancing support plates 222 can be rotated to move to the road surface, so that the lower surfaces of the four rubber pads 223 can overlap with the road surface, and then the limiting sleeve 212 is rotated in the opposite direction again to make the limiting sleeve 212 and the four arc-shaped limiting support plates 214 move down, so that the lower surfaces of the four arc-shaped limiting support plates 214 can overlap with the four rotated balancing support plates The upper surface of the support plate 222 overlaps, thereby limiting the support of the balance support plate 222, and then moving it above the hole. Then, by turning the knob 36, the threaded rod 35 can be rotated, so that the detection rod 31 can move downward to the detection hole under the limit of the limit block 32, and then under the action of the indicator block 33, the moving distance of the detection rod 31 can be marked according to the marking ruler 4, so that the detection personnel can understand the thickness of the road surface structure and detect the depth of the hole. The lower surface of the protective tube 1 can be protected to a certain extent by the action of the fixed seat 23 and the rubber pad 24, so that it can prevent direct collision with the road surface during detection, and at the same time play an anti-slip role.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A pavement structure layer thickness detection device, comprising a protective tube (1), characterized in that: The upper surface of the protective tube (1) is fixedly connected with a leather handle (5), the outer wall of the upper part of the protective tube (1) is fixedly connected with a protective rubber sleeve (6), the outer wall of the lower part of the protective tube (1) is fixedly connected with a support assembly (2), the front of the outer wall of the protective tube (1) is fixedly connected with two marking rulers (4) and the two marking rulers (4) are located between the support assembly (2) and the protective rubber sleeve (6), and the inner wall of the protective tube (1) is fixedly installed with a detection assembly (3); The support assembly (2) includes a limiting assembly (21), the inner wall of the limiting assembly (21) is fixedly installed with the outer wall of the protective tube (1), the front, rear, left and right parts of the inner wall of the limiting assembly (21) are overlapped with a balancing assembly (22), the outer walls of the four balancing assemblies (22) away from the inner wall of the limiting assembly (21) are respectively fixedly connected to the inner cavity of the protective tube (1), the lower parts of the outer walls of the four balancing assemblies (22) are fixedly connected with a fixing seat (23), the upper surface of the fixing seat (23) is fixedly connected with the lower surface of the protective tube (1), and the lower surface of the fixing seat (23) is fixedly connected with a rubber pad 2 (24); The detection assembly (3) comprises a detection rod (31), the outer wall of the detection rod (31) is movably sleeved with the inner wall of the protective tube (1), the front of the outer wall of the detection rod (31) is fixedly connected to a limit block (32), the outer wall of the limit block (32) is slidably connected to the inner wall of the protective tube (1), the front of the limit block (32) is fixedly connected to an indicator block (33), and the rear sides of the left and right parts of the indicator block (33) are respectively overlapped with the front sides of two marking rulers (4).

2. A pavement structure layer thickness detection device according to claim 1, characterized in that: The four balancing assemblies (22) include four fixed shells (221), the outer walls of the four fixed shells (221) are respectively fixedly connected to the inner cavity of the protective tube (1), the lower parts of the inner walls of the four fixed shells (221) are rotatably connected to the balancing support plate (222), and the lower surfaces of the four balancing support plates (222) are fixedly connected to a rubber pad (223).

3. The device for detecting the thickness of a pavement structure layer according to claim 1, characterized in that: The limiting assembly (21) comprises a threaded sleeve (211), the inner wall of the threaded sleeve (211) is fixedly connected to the outer wall of the protective tube (1), the outer wall of the limiting assembly (21) is threadedly connected to the limiting sleeve (212), the front, rear, left and right parts of the lower surface of the limiting sleeve (212) are fixedly connected to arc-shaped limiting support plates (214), the inner walls of the four arc-shaped limiting support plates (214) are movably connected to the outer walls of the protective tube (1) and the four balancing support plates (222), and the lower surfaces of the four arc-shaped limiting support plates (214) are overlapped with the upper surfaces of the corresponding parts of the four balancing support plates (222).

4. A pavement structure layer thickness detection device according to claim 3, characterized in that: The outer wall of the limiting sleeve (212) is fixedly connected to the second protective rubber sleeve (213), and the outer wall of the second protective rubber sleeve (213) and the outer wall of the first protective rubber sleeve (6) are located on the same horizontal line.

5. The device for detecting the thickness of a pavement structure layer according to claim 1, characterized in that: The inner wall of the detection rod (31) is threadedly connected to a threaded rod (35), the outer wall of the upper part of the threaded rod (35) is rotatably connected to the inner cavity of the upper part of the protective tube (1), and the upper surface of the threaded rod (35) is fixedly connected to a knob (36), and the knob (36) is located on the upper surface of the protective tube (1).

6. The device for detecting the thickness of a pavement structure layer according to claim 1, characterized in that: The upper and lower sides of the limit block (32) are fixedly connected with rubber protective pads, and the outer wall of the lower part of the detection rod (31) is fixedly connected with a rubber sleeve (34).

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