Road hardness detection device

Abstract

The utility model belongs to the field of road detection, and particularly relates to a road hardness detection device which comprises a rebound apparatus body, a protection mechanism is fixedly connected to the top of the rebound apparatus body, a telescopic mechanism is fixedly connected to the surface of the rebound apparatus body, and the protection mechanism comprises a protection shell. The protection shell is connected to the top of the rebound apparatus body in a high-frequency mode, a sliding way is fixedly connected to the inner wall of the protection shell, an L-shaped rod is rotatably connected to the inner wall of the protection shell, a half gear is fixedly connected to one end of the L-shaped rod, the telescopic mechanism comprises a shell, and the shell is fixedly connected to the surface of the rebound apparatus body. An inner shell is slidably connected to the inner wall of the outer shell, and a limiting groove is formed in the surface of the outer shell; through the arrangement of the protection mechanism, the detection head can be covered and shielded through the opening and closing protection plate, the detection head is prevented from being exposed in the external environment, and therefore the risk that the detection head is damaged or abraded is avoided.

Description

Technical Field

[0001] The utility model relates to the field of road detection, in particular to a road hardness detection device. Background Art

[0002] After the road is built, it needs to be tested for hardness. The test can promptly discover and eliminate safety hazards in the road, such as cracks, potholes, and unevenness, thereby effectively preventing traffic accidents. Through a comprehensive assessment of road conditions and traffic environment, it provides a scientific basis for traffic safety, ensures good road conditions, and reduces the risk of traffic accidents.

[0003] Some existing testing devices use rebound testers to test the road surface. The rebound tester head is exposed to the outside world for a long time and is easily hit by other tools, which will cause wear or damage to the test head. Over time, this physical wear will gradually accumulate, causing the performance of the test head to deteriorate, thereby affecting the accuracy of the test results. Therefore, a road hardness testing device is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, some of the existing detection devices use rebound testers to detect the road surface. The detection head of the rebound tester is exposed to the outside world for a long time and is easily hit by other tools, which will cause wear or damage to the detection head. Over time, this physical wear will gradually accumulate, resulting in a decline in the performance of the detection head, which in turn affects the accuracy of the detection results. The utility model proposes a road hardness detection device.

[0005] The utility model solves the technical problem by adopting the following technical solution: a road hardness detection device comprises a rebound test body, the top of the rebound test body is fixedly connected with a protection mechanism, and the surface of the rebound test body is fixedly connected with a telescopic mechanism;

[0006] The protective mechanism includes a protective shell, the protective shell is highly connected to the top of the rebound tester body, the inner wall of the protective shell is fixedly connected with a slideway, the number of the slideways is two, a protective plate is slidably connected between the opposite sides of the two slides, the number of the protective plates is two, the inner wall of the protective shell is rotatably connected with a handle, one end of the handle penetrates the inner wall of the protective shell, the protective shell is rotatably connected with an L-shaped rod, the number of the L-shaped rods is two, one end of the L-shaped rod is fixedly connected with a half gear, the two half gears are meshed and connected with each other, the inner wall of the protective shell is rotatably connected with a connecting rod, the handle, the L-shaped rod and one end of the connecting rod are all fixedly connected with a first rotating shaft, one end of the first rotating shaft is rotatably connected to the inner wall of the protective shell, the other end of the first rotating shaft is rotatably connected to one side of the protective plate, the other ends of the handle, the L-shaped rod and the connecting rod are all fixedly connected with a second rotating shaft, and both ends of the second rotating shaft are fixedly connected to the inner wall of the protective shell;

[0007] The telescopic mechanism includes an outer shell, which is fixedly connected to the surface of the rebound tester body, the inner wall of the outer shell is slidably connected to the inner shell, the inner wall of the outer shell is provided with a first spring, one end of the first spring is fixedly connected to the inner wall of the outer shell, and the other end of the first spring is fixedly connected to the bottom of the inner shell, and a limiting groove is provided on the surface of the outer shell.

[0008] Preferably, a base is fixedly connected to one side of the shell, a groove is formed on the inner wall of the base, and a notch is formed on the bottom of the base.

[0009] Preferably, a movable column is slidably connected to the inner wall of the base, and a limiting block is fixedly connected to the surface of the movable column.

[0010] Preferably, a second spring is provided on the surface movable sleeve of the movable column, one end of the second spring is fixedly connected to one side of the limit block, and the other end of the second spring is fixedly connected to the inner wall of the groove.

[0011] Preferably, an elastic sheet is provided on the surface of the inner shell, one end of the elastic sheet is fixedly connected to a fixing block, and the elastic sheet is fixedly connected to the surface of the inner shell via the fixing block.

[0012] Preferably, the other end of the elastic sheet is fixedly connected with a square block, and the square block is used in conjunction with the limiting groove and the notch.

[0013] Preferably, one side of the protective shell and the handle is fixedly connected to a mounting block, the inner wall of the protective shell is provided with a tension spring, and both ends of the tension spring are fixedly connected to the surface of the mounting block.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model can provide protection for the detection head when the rebound tester body is idle by arranging a protection mechanism. The detection head can be covered and shielded by an opening and closing protection plate to prevent the detection head from being exposed to the external environment, thereby avoiding the risk of damage or wear of the detection head, preventing accidental collision with other tools, and improving the safety of the detection device.

[0016] 2. The utility model sets a telescopic mechanism and is used in conjunction with the protective mechanism. When road surface detection is required, the first spring will be compressed by pressing down the protective shell, driving the protective mechanism to move downward, and the detection head blocked by the protective plate will be exposed, so that the road surface can be accurately detected. At the same time, when the detection is completed, the user only needs to release the telescopic mechanism, and the protective mechanism will automatically reset under the elastic force of the first spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 utility model. 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 three-dimensional diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the protection mechanism structure of the utility model;

[0020] Figure 3 It is a partial structural diagram of the protection mechanism of the utility model;

[0021] Figure 4 This is an exploded view of the telescopic mechanism structure of the utility model;

[0022] Figure 5 It is a partial structural sectional view of the utility model.

[0023] In the figure: 1. Rebound tester body; 2. Protection mechanism; 201. Slide; 202. Protection plate; 203. Handle; 204. L-shaped rod; 205. Half gear; 206. Connecting rod; 207. First rotating shaft; 208. Protection shell; 209. Second rotating shaft; 3. Telescopic mechanism; 301. Outer shell; 302. Inner shell; 303. First spring; 304. Limiting groove; 4. Base; 5. Movable column; 6. Limiting block; 7. Groove; 8. Second spring; 9. Notch; 10. Elastic sheet; 11. Fixed block; 12. Square block; 13. Mounting block; 14. Tension spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following is combined with Figure 1-5 To further explain this application in detail,

[0026] The present application embodiment discloses a road hardness detection device. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A road hardness testing device comprises a rebound tester body 1, a protective mechanism 2 is fixedly connected to the top of the rebound tester body 1, and a telescopic mechanism 3 is fixedly connected to the surface of the rebound tester body 1;

[0027] The protection mechanism 2 includes a protection shell 208, which is highly connected to the top of the rebound tester body 1. The inner wall of the protection shell 208 is fixedly connected with a slideway 201, and the number of the slideways 201 is two. A protection plate 202 is slidably connected between the opposite sides of the two slideways 201, and the number of the protection plates 202 is two. The inner wall of the protection shell 208 is rotatably connected with a handle 203, and one end of the handle 203 penetrates the inner wall of the protection shell 208. The protection shell 208 is anti-rotatably connected with an L-shaped rod 204, and the number of the L-shaped rod 204 is two. One end of the L-shaped rod 204 is fixedly connected with a half gear 205, and the two half gears 205 are meshed and connected with each other. The inner wall of the protection shell 208 is rotatably connected with a connecting rod 206, and the handle 203 and the L-shaped rod 204 are connected to each other. One end of the handle 203, the L-shaped rod 204 and the other end of the connecting rod 206 are fixedly connected with a first rotating shaft 207, one end of the first rotating shaft 207 is rotatably connected to the inner wall of the protective shell 208, and the other end of the first rotating shaft 207 is rotatably connected to one side of the protective plate 202. The handle 203, the L-shaped rod 204 and the other end of the connecting rod 206 are fixedly connected with a second rotating shaft 209, and both ends of the second rotating shaft 209 are fixedly connected to the inner wall of the protective shell 208. By setting up the protection mechanism 2, the detection head can be protected when the rebound tester body 1 is idle. The detection head can be covered and shielded by the protective plate 202 that can be opened and closed to prevent the detection head from being exposed to the external environment, thereby avoiding the risk of damage or wear of the detection head, preventing accidental collision with other tools, and improving the safety of the detection device.

[0028] The telescopic mechanism 3 includes a shell 301, which is fixedly connected to the surface of the rebound tester body 1, and the inner wall of the shell 301 is slidably connected to the inner shell 302. The inner wall of the shell 301 is provided with a first spring 303, one end of the first spring 303 is fixedly connected to the inner wall of the shell 301, and the other end of the first spring 303 is fixedly connected to the bottom of the inner shell 302. A limiting groove 304 is provided on the surface of the shell 301; by setting the telescopic mechanism 3 and using it in conjunction with the protective mechanism 2, when road surface detection is required, the first spring 303 will be compressed by pressing down the protective shell 208, driving the protective mechanism 2 to move downward, and the detection head blocked by the protective plate 202 will be exposed, so that the road surface can be accurately detected. At the same time, when the detection is completed, the user only needs to release the telescopic mechanism 3, and the protective mechanism 2 will automatically reset under the elastic force of the first spring 303.

[0029] Reference Figure 5 A base 4 is fixedly connected to one side of the shell 301, a groove 7 is provided on the inner wall of the base 4, and a notch 9 is provided on the bottom of the base 4; by setting the base 4, the stability of the movable column 5 during the movement is ensured, the movable column 5 is prevented from deviating from the predetermined path, and unnecessary shaking of the movable column 5 is avoided.

[0030] Reference Figure 5 The inner wall of the base 4 is slidably connected with a movable column 5, and the surface of the movable column 5 is fixedly connected with a limit block 6; by setting the movable column 5, the square block 12 can be pushed out from the slot 9, thereby canceling the locking state of the square block 12, so that the telescopic mechanism 3 can rebound.

[0031] Reference Figure 5 A second spring 8 is provided on the surface of the movable column 5, one end of the second spring 8 is fixedly connected to one side of the limit block 6, and the other end of the second spring 8 is fixedly connected to the inner wall of the groove 7; by providing the second spring 8, it can be ensured that the movable column 5 can still be accurately reset after multiple uses.

[0032] Reference Figure 4 An elastic sheet 10 is provided on the surface of the inner shell 302, one end of the elastic sheet 10 is fixedly connected to a fixing block 11, and the elastic sheet 10 is fixedly connected to the surface of the inner shell 302 through the fixing block 11; by providing the elastic sheet 10, elastic force is provided for the square block 12, which can improve the flexibility of the square block 12.

[0033] Reference Figure 4 and Figure 5 The other end of the elastic sheet 10 is fixedly connected with a square block 12, which is used in conjunction with the limiting groove 304 and the notch 9; by setting the square block 12, it can be tightly embedded in the notch 9, thereby forming a stable locking mechanism, which can ensure that the inner shell 302 remains in a predetermined position, facilitating the detection of the rebound tester body 1.

[0034] Reference Figure 2 The protective shell 208 and one side of the handle 203 are fixedly connected to the mounting block 13, and the inner wall of the protective shell 208 is provided with a tension spring 14, and both ends of the tension spring 14 are fixedly connected to the surface of the mounting block 13; by providing the tension spring 14, the protective plate 202 will only be opened when the user actively pulls the handle 203, reducing the possibility of accidental touch.

[0035] Working principle: When the rebound tester body 1 is needed to detect the road, the user turns the handle 203, and the rotation of the handle 203 drives the protective plate 202 on one side to slide in the slideway 201. When the protective plate 202 on one side slides, this action will drive an L-shaped rod 204 connected by the first rotating shaft 207 to rotate. When one L-shaped rod 204 rotates, the meshing operation of the two half gears 205 can drive the L-shaped rod 204 on the other side to rotate synchronously, and the connecting rod 206 can The protective plate 202 on the other side is prevented from shaking when moving, thereby ensuring the sliding stability of the protective plate 202 on the other side. The half gear 205 can improve the accuracy and stability of the transmission. By turning the handle 203, the protective plate 202 can be opened and closed, which is convenient for protecting the rebound tester body 1. The tension spring 14 can be fixed by the mounting block 13. When the handle 203 is rotated, the tension spring 14 will extend to provide elastic force for the reset of the handle 203. At the same time, the tension spring 14 can maintain a stable shape to ensure that the handle 203 is not easily displaced. Or loosen, after opening the protective plate 202, press the protective shell 208 downward, transfer the pressure to the first spring 303 through the inner shell 302, compress the first spring 303, and the inner shell 302 will move down along the inner wall of the outer shell 301. The space between the inner shell 302 and the outer shell 301 will squeeze the square block 12, causing the elastic sheet 10 to deform. When the square block 12 moves into the limiting groove 304, the elastic sheet 10 will rebound, driving the square block 12 to enter the notch 9 in the base 4, and locking the inner shell 302 to the inner wall of the outer shell 301. The detection head of the rebound tester body 1 can be exposed to facilitate the user to perform detection. After the detection is completed, the user presses the movable column 5 in the base 4. The downward pressure of the movable column 5 will drive the limit block 6 to move. The movement of the limit block 6 will compress the second spring 8 in the groove 7. The square block 12 in the notch 9 can be pushed out of the notch 9 through the extension of the movable column 5, so that the square block 12 is separated from the notch 9. The inner shell 302 can be reset by the rebound force compressed by the first spring 303, and the movable column 5 can be reset by the rebound force of the second spring 8.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A road hardness detection device, characterized in that: It comprises a rebound tester body (1), the top of which is fixedly connected to a protective mechanism (2), and the surface of which is fixedly connected to a telescopic mechanism (3); The protection mechanism (2) comprises a protection shell (208), wherein the protection shell (208) is connected to the top of the rebound tester body (1), the inner wall of the protection shell (208) is fixedly connected with a slideway (201), the number of the slideways (201) is two, a protection plate (202) is slidably connected between the opposite sides of the two slideways (201), the number of the protection plates (202) is two, the inner wall of the protection shell (208) is rotatably connected with a handle (203), one end of the handle (203) passes through the inner wall of the protection shell (208), the inner wall of the protection shell (208) is rotatably connected with an L-shaped rod (204), the number of the L-shaped rod (204) is two, and one end of the L-shaped rod (204) is connected to the inner wall of the protection shell (208). The end of the protective shell (208) is fixedly connected with a half gear (205), and the two half gears (205) are meshed and connected with each other. The inner wall of the protective shell (208) is rotatably connected with a connecting rod (206). The handle (203), the L-shaped rod (204) and one end of the connecting rod (206) are all fixedly connected with a first rotating shaft (207). One end of the first rotating shaft (207) is rotatably connected to the inner wall of the protective shell (208), and the other end of the first rotating shaft (207) is rotatably connected to one side of the protective plate (202). The other ends of the handle (203), the L-shaped rod (204) and the connecting rod (206) are all fixedly connected with a second rotating shaft (209), and both ends of the second rotating shaft (209) are fixedly connected to the inner wall of the protective shell (208); The telescopic mechanism (3) comprises an outer shell (301), wherein the outer shell (301) is fixedly connected to the surface of the rebound tester body (1), the inner wall of the outer shell (301) is slidably connected to the inner shell (302), the inner wall of the outer shell (301) is provided with a first spring (303), one end of the first spring (303) is fixedly connected to the inner wall of the outer shell (301), and the other end of the first spring (303) is fixedly connected to the bottom of the inner shell (302), and a limiting groove (304) is provided on the surface of the outer shell (301).

2. A road hardness detection device according to claim 1, characterized in that: A base (4) is fixedly connected to one side of the housing (301), a groove (7) is provided on the inner wall of the base (4), and a notch (9) is provided on the bottom of the base (4).

3. A road hardness detection device according to claim 2, characterized in that: The inner wall of the base (4) is slidably connected to a movable column (5), and the surface of the movable column (5) is fixedly connected to a limiting block (6).

4. A road hardness detection device according to claim 3, characterized in that: A second spring (8) is provided on the surface of the movable column (5), one end of the second spring (8) is fixedly connected to one side of the limit block (6), and the other end of the second spring (8) is fixedly connected to the inner wall of the groove (7).

5. A road hardness detection device according to claim 1, characterized in that: An elastic sheet (10) is provided on the surface of the inner shell (302), one end of the elastic sheet (10) is fixedly connected to a fixing block (11), and the elastic sheet (10) is fixedly connected to the surface of the inner shell (302) via the fixing block (11).

6. A road hardness detection device according to claim 5, characterized in that: The other end of the elastic sheet (10) is fixedly connected to a square block (12), and the square block (12) is used in conjunction with the limiting groove (304) and the notch (9).

7. A road hardness detection device according to claim 1, characterized in that: The protective shell (208) and one side of the handle (203) are both fixedly connected to a mounting block (13), the inner wall of the protective shell (208) is provided with a tension spring (14), and both ends of the tension spring (14) are fixedly connected to the surface of the mounting block (13).

Images