Road surface thickness evaluation rod

Abstract

The utility model relates to the technical field of pavement thickness measurement, and discloses a pavement thickness evaluation rod which comprises a base and is characterized in that the top surface of the base is fixedly connected with a supporting groove, a fixing mechanism is arranged above the base, and a measuring mechanism is arranged on the right side of the supporting groove; the fixing mechanism comprises a power part and a connecting part, the power part is located above the base, and the connecting part is located on the right side of the power part; the measuring mechanism comprises an adjusting part and a lifting part, the adjusting part is located above the supporting groove, and the lifting part is located below the adjusting part. The air cylinder is started to drive the fixing plate to move, the rotating strip is driven by the fixing plate to move, the moving strip is driven by the rotating strip to move in the square sleeve, the connecting strip is driven by the moving strip to move, and the connecting strip drives the clamping plate to clamp and fix an object, so that deviation caused by movement during measurement is avoided; and the measurement is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of pavement thickness measurement, in particular to a pavement thickness evaluation rod. Background Technique

[0002] The highway pavement refers to a layered structure paved within the carriageway range on the highway subgrade. According to the layer position and its function, it can be divided into three main layers: surface layer, base layer, and cushion layer. Some pavements only adopt two structural layers, namely the surface layer and the base layer, or even only one surface layer structure. At present, when evaluating the thickness of highway pavements, the core drilling method is usually adopted. That is, after using equipment such as a pavement core sample drilling machine to drill a cylindrical core sample on the pavement, the thickness of the core sample is directly measured to obtain the pavement thickness. However, when measuring the thickness of the core sample, it is often necessary for manual workers to place the core sample stably and then hold tools such as a steel ruler for manual comparison measurement, which has the problems of inconvenient operation, low efficiency, and inaccurate measurement data, and needs to be improved.

[0003] Chinese Patent Publication No. CN212103588U discloses a highway pavement thickness evaluation rod, which includes a support rod. Two support rods are arranged in parallel, and both the upper and lower ends of the two support rods are fixedly connected by a connecting block. A rotatable rotating sleeve is fixedly arranged in the middle between the two support rods, and a measuring ruler is vertically inserted through the rotating sleeve. The set rotating sleeve drives the measuring ruler to rotate at a right angle, and then the locking block is driven by an adjusting screw to limit and fix the rotating sleeve. The two ends of the support rod are placed on the edge of the pavement measurement pit, and the measuring ruler is moved downward for measurement. The stable guiding of the rotating sleeve avoids the shaking of the measuring ruler and can ensure the accuracy of the measurement. After use, the locking block is driven in the reverse direction by the adjusting screw to release the limit and fixation of the rotating sleeve, and then the rotating sleeve and the measuring ruler are rotated to be flush with the support rod, and the rotating sleeve is locked by a locking screw to fold and retract the measuring ruler, which is convenient for carrying during use;

[0004] However, there are still the following disadvantages: when the device measures the pavement thickness, the device is not fixed stably enough, which makes the measurement result inaccurate.

[0005] Therefore, a pavement thickness evaluation rod is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a pavement thickness evaluation rod to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A pavement thickness evaluation rod includes a base, a support groove is fixedly connected to the top surface of the base, a fixing mechanism is arranged above the base, and a measuring mechanism is arranged on the right side of the support groove;

[0008] The fixing mechanism includes a power part and a connecting part. The power part is located above the base, and the connecting part is located on the right side of the power part;

[0009] The measuring mechanism includes an adjusting part and a lifting part. The adjusting part is located above the support groove, and the lifting part is located below the adjusting part.

[0010] Preferably, the power part includes a fixed frame. The bottom surface of the fixed frame is fixedly connected to the top surface of the base. The left end inner wall of the fixed frame is fixedly connected with a cylinder. The right side surface of the fixed frame is fixedly connected with a concave fixing plate. The right outer side surface of the output rod of the cylinder sequentially slides through the right end inner wall of the fixed frame and the left side surface of the concave fixing plate and extends to the right side of the concave fixing plate. The provided cylinder provides power for the fixing mechanism.

[0011] Preferably, the connecting part includes square sleeves arranged symmetrically in the front and back. The left side surfaces of the two square sleeves are fixedly connected to the front, back, and right end faces of the concave fixing plate. The inner walls of the two square sleeves are both slidably connected with moving strips. The near end side surfaces of the two moving strips are both fixedly connected with connecting strips. The right end faces of the two connecting strips are both fixedly connected with clamping plates. The provided clamping plates clamp and fix the object.

[0012] Preferably, the near ends of the two moving strips are both hinged with rotating strips. An adjusting plate is arranged between the two rotating strips. The other ends of the two rotating strips are both hinged to the side surface of the adjusting plate. The left side surface of the adjusting plate is fixedly connected to the right end face of the output rod of the cylinder. The provided adjusting plate drives the rotating strips to move.

[0013] Preferably, the adjusting part includes a threaded rod. The upper end surface of the threaded rod is fixedly connected with a rotating block. The lower outer side surface of the threaded rod rotates through the top surface of the support groove and extends into the support groove through a first bearing seat. The lower end surface of the threaded rod is rotatably connected to the lower inner wall of the support groove through a second bearing seat. The outer side surface of the threaded rod is threadedly sleeved with a limit block. The side surface of the limit block is slidably connected to the inner wall of the support groove. The provided threaded rod enables the limit block to move.

[0014] Preferably, the lifting part includes a measuring plate. The left side surface of the measuring plate is fixedly connected to the right side surface of the limit block. The provided measuring plate measures the height of the object.

[0015] Preferably, a moving groove is arranged on the left side surface of the support groove. The left side surface of the limit block is fixedly connected with a fixed rod. The side surface of the fixed rod is slidably connected to the inner wall of the moving groove. The left end face of the fixed rod is fixedly connected with a pointer. Scale lines are arranged on the left side surface of the support groove. The pointer points to the scale lines. The provided pointer and scale lines are used to accurately view the measured value of the object.

[0016] Compared with the prior art, the beneficial effects of the present utility model are: This road surface thickness evaluation rod,

[0017] 1. By activating the cylinder, the fixed plate is driven to move. Driven by the fixed plate, the rotating bar moves. Driven by the rotating bar, the moving bar moves within the square sleeve. Driven by the moving bar, the connecting bar moves, and the connecting bar drives the clamping block to clamp and fix the object, making it difficult for the object to move and generate deviation during measurement, and the measurement is more accurate.

[0018] 2. By rotating the rotating block provided in the adjusting part, the threaded rod rotates driven by the rotating block. Driven by the threaded rod, the limiting block moves. Driven by the limiting block, the measuring plate, the fixed rod and the pointer move, thereby measuring the object and accurately reading the measured value. Description of the Drawings

[0019] Figure 1 It is a front three-dimensional view of the whole of the present utility model;

[0020] Figure 2 It is a left three-dimensional view of the whole of the present utility model;

[0021] Figure 3 It is a left three-dimensional view of the measuring mechanism of the present utility model;

[0022] Figure 4 It is a front three-dimensional view of the fixing mechanism of the present utility model;

[0023] Figure 5 For the present utility model Figure 3 Enlarged view of part A.

[0024] In the figure: 1 base, 101 support groove, 2 fixing mechanism, 201 fixing frame, 202 cylinder, 203 concave fixing plate, 204 square sleeve, 205 moving bar, 206 connecting bar, 207 clamping block, 208 rotating bar, 209 fixing plate, 3 measuring mechanism, 301 threaded rod, 302 rotating block, 303 limiting block, 304 measuring plate, 305 fixed rod, 306 pointer, 307 scale line. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] Combined with Figures 1 - 5, a pavement thickness evaluation rod, comprising a base 1. A support groove 101 is fixedly connected to the top surface of the base 1. A fixing mechanism 2 is arranged above the base 1, and a measuring mechanism 3 is arranged on the right side of the support groove 101;

[0028] The fixing mechanism 2 includes a power part and a connecting part. The power part is located above the base 1. The power part includes a fixing frame 201. The bottom surface of the fixing frame 201 is fixedly connected to the top surface of the base 1. The left inner wall of the fixing frame 201 is fixedly connected with a cylinder 202. The right side surface of the fixing frame 201 is fixedly connected with a concave fixing plate 203. The outer side surface of the right end of the output rod of the cylinder 202 sequentially slides through the right inner wall of the fixing frame 201 and the left side surface of the concave fixing plate 203 and extends to the right side of the concave fixing plate 203. The arranged cylinder 202 provides power for the fixing mechanism. The connecting part is located on the right side of the power part. The connecting part includes square sleeves 204 arranged symmetrically in the front and back. The left side surfaces of the two square sleeves 204 are fixedly connected to the front, back and right end faces of the concave fixing plate 203. The inner walls of the two square sleeves 204 are both slidably connected with moving strips 205. The side surfaces of the two moving strips 205 close to the ends are fixedly connected with connecting strips 206. The right end faces of the two connecting strips 206 are fixedly connected with clamping plates 207. The arranged clamping plates 207 clamp and fix an object. The two moving strips 205 close to the ends are both hinged with rotating strips 208. A fixing plate 209 is arranged between the two rotating strips 208. The other ends of the two rotating strips 208 are both hinged to the side surface of the fixing plate 209. The left side surface of the fixing plate 209 is fixedly connected to the right end face of the output rod of the cylinder 202. The arranged fixing plate 209 drives the rotating strips 208 to move;

[0029] Embodiment 2

[0030] Refer to Figures 1 - 5, and on the basis of the first embodiment, it is further obtained that the measuring mechanism 3 includes an adjusting part and a lifting part. The adjusting part is located above the support groove 101. The adjusting part includes a threaded rod 301. The upper end surface of the threaded rod 301 is fixedly connected with a rotating block 302. The lower outer side surface of the threaded rod 301 passes through the top surface of the support groove 101 through a first bearing seat and extends into the support groove 101. The lower end surface of the threaded rod 301 is rotatably connected with the inner wall of the lower end of the support groove 101 through a second bearing seat. A limiting block 303 is threadedly sleeved on the outer side surface of the threaded rod 301. The side surface of the limiting block 303 is slidably connected with the inner wall of the support groove 101. The provided threaded rod 301 enables the limiting block 303 to move. The lifting part is located below the adjusting part. The lifting part includes a measuring plate 304. The left side surface of the measuring plate 304 is fixedly connected with the right side surface of the limiting block 303. The provided measuring plate 304 measures the height of the object. A moving groove is provided on the left side surface of the support groove 101. A fixing rod 305 is fixedly connected to the left side surface of the limiting block 303. The side surface of the fixing rod 305 is slidably connected with the inner wall of the moving groove. A pointer 306 is fixedly connected to the left end surface of the fixing rod 305. A scale line 307 is provided on the left side surface of the support groove 101. The pointer 306 points to the scale line 307. The provided pointer 306 and scale line 307 are used to accurately view the measured value of the object.

[0031] In the actual operation process, place the object between the two clamping blocks 207, turn on the air cylinder 202, drive the fixing plate 209 to move. Driven by the fixing plate 209, the rotating bar 208 moves. Driven by the rotating bar 208, the moving bar 205 moves in the square sleeve 204. Driven by the moving bar 205, the connecting bar 206 moves. The connecting bar 206 drives the clamping block 207 to clamp and fix the object, so that it is not easy to move and generate deviation during measurement. Rotate the rotating block 302 provided in the adjusting part. Driven by the rotating block 302, the threaded rod 301 rotates. Driven by the threaded rod 301, the limiting block 303 moves. Driven by the limiting block 303, the measuring plate 304, the fixing rod 305 and the pointer 306 move, thereby measuring the object and accurately reading the measured value.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road thickness measuring rod, comprising a base (1), characterized in that: The top surface of the base (1) is fixedly connected to a support groove (101), a fixing mechanism (2) is arranged above the base (1), and a measuring mechanism (3) is arranged on the right side of the support groove (101); The fixing mechanism (2) comprises a power part and a connection part, wherein the power part is located above the base (1) and the connection part is located on the right side of the power part; The measuring mechanism (3) comprises an adjusting part and a lifting part, wherein the adjusting part is located above the supporting groove (101) and the lifting part is located below the adjusting part.

2. A road thickness measuring rod according to claim 1, characterized in that: The power unit comprises a fixed frame (201), the bottom surface of the fixed frame (201) is fixedly connected to the top surface of the base (1), the inner wall of the left end of the fixed frame (201) is fixedly connected to a cylinder (202), the right side surface of the fixed frame (201) is fixedly connected to a concave fixing plate (203), and the outer side surface of the right end of the output rod of the cylinder (202) slides sequentially through the inner wall of the right end of the fixed frame (201) and the left side surface of the concave fixing plate (203) to extend to the right side of the concave fixing plate (203).

3. A road thickness measuring rod according to claim 2, characterized in that: The connecting portion comprises a square sleeve (204) symmetrically arranged front and rear, the left sides of the two square sleeves (204) being fixedly connected to the front and rear right end faces of the concave fixing plate (203), the inner walls of the two square sleeves (204) being slidably connected to a moving bar (205), the two moving bars (205) being fixedly connected to a connecting bar (206) near the end side faces, and the right end faces of the two connecting bars (206) being fixedly connected to a clamping plate (207).

4. A road thickness measuring rod according to claim 3, characterized in that: The two moving bars (205) are hingedly connected to rotating bars (208) at their near ends, a fixed plate (209) is arranged between the two rotating bars (208), the other ends of the two rotating bars (208) are hingedly connected to the side of the fixed plate (209), and the left side of the fixed plate (209) is fixedly connected to the right end face of the output rod of the cylinder (202).

5. A road thickness measuring rod according to claim 1, characterized in that: The adjusting portion comprises a threaded rod (301), the upper end surface of the threaded rod (301) is fixedly connected with a rotating block (302), the outer side surface of the lower end of the threaded rod (301) is rotated through the first bearing seat to penetrate the top surface of the support groove (101) and extend into the interior of the support groove (101), the lower end surface of the threaded rod (301) is rotatably connected to the inner wall of the lower end of the support groove (101) through the second bearing seat, the outer side surface of the threaded rod (301) is threadedly sleeved with a limiting block (303), and the side surface of the limiting block (303) is slidably connected to the inner wall of the support groove (101).

6. A road thickness measuring rod according to claim 5, characterized in that: The lifting part comprises a measuring plate (304), and the left side surface of the measuring plate (304) is fixedly connected to the right side surface of the limiting block (303).

7. A road thickness measuring rod according to claim 6, characterized in that: The left side of the support groove (101) is provided with a movable groove, the left side of the limit block (303) is fixedly connected with a fixed rod (305), the side of the fixed rod (305) is slidably connected to the inner wall of the movable groove, the left end face of the fixed rod (305) is fixedly connected with a pointer (306), the left side of the support groove (101) is provided with a scale line (307), and the pointer (306) points to the scale line (307).

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