Thickness measuring device for road detection

Abstract

The utility model discloses a thickness measuring device for road detection, which comprises a base, the top of the base is rotatably provided with a rotating disc through a bearing seat, the center of the top of the rotating disc is fixedly provided with a cushion block, the rotating disc is provided with a centering clamping mechanism, the peripheral wall of the rotating disc is provided with four positioning grooves in a circumferential distribution mode, and the positioning grooves are provided with positioning holes. A vertical block is fixedly installed at the position, located on one side of the rotary disc, of the top of the base, and a positioning mechanism matched with the positioning groove is arranged on the vertical block. According to the utility model, the turntable, the centering clamping mechanism, the positioning grooves, the positioning mechanism, the vernier caliper and the like are arranged, a core sample can be fixedly clamped on the cushion block by operating the centering clamping mechanism, the positioning mechanism is matched with each positioning groove, and the vernier caliper is respectively used for measuring the core sample once, so that four times of thickness measurement can be completed; the device is simple and convenient to operate, accurate in measured point position, free of line drawing and marking on the end face of the core sample, and good in using effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a highway detection technical field, concretely is a thickness measuring device for highway detection. BACKGROUND

[0002] Drilling sampling detection method is one of the commonly used methods for highway thickness detection, which firstly uses a road core drilling machine to sample the highway, then cleans the sample, and then measures the height of the surface to the interface in four positions along the cross direction of the sample circle, takes the average value as the thickness of the layer, in order to ensure the accuracy of the four measurement positions, two mark lines perpendicular to each other and passing through the center of the circle are drawn on the end surface of the sample before measurement, and the end points of the two lines are used as the measurement reference points, which is more troublesome to operate and needs to be improved. UTILITY MODEL CONTENT

[0003] The utility model discloses a thickness measuring device for highway detection, which solves the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A thickness measuring device for highway detection, comprising a base, a turntable rotatably mounted on the top of the base through a bearing block, a pad fixedly installed at the top center of the turntable, a centering clamping mechanism installed on the turntable, four positioning grooves circumferentially distributed on the outer peripheral wall of the turntable, a vertical block fixedly installed on one side of the top of the base, a positioning mechanism provided on the vertical block and matched with the positioning grooves, a sliding seat slidably installed on the top of the base through a guide rail, a connecting seat elastically connected to the sliding seat through a rebound mechanism, and a vernier caliper fixedly installed on the connecting seat.

[0006] As a further scheme of the utility model, the vernier caliper comprises a ruler fixedly connected to the connecting seat, a fixed jaw fixedly connected to the outer wall of the ruler at the low end, and a vernier slidably sleeved on the outer wall of the ruler.

[0007] As a further scheme of the utility model, a metal spring is provided in the vernier, and the metal spring is attached to the outer wall of the ruler.

[0008] As a further scheme of the utility model, a plurality of vertical rods are slidably installed on the connecting seat, a baffle is fixedly connected to the top end of each vertical rod, the bottom end of each vertical rod is fixedly connected to the top of the sliding seat, and a second spring is sleeved on the outer wall of each vertical rod between the sliding seat and the connecting seat.

[0009] As a further scheme of the utility model: the centering and clamping mechanism includes the two-way screw rod that is rotatably installed on the top of the rotating disc through the bearing seat, the two-way screw rod passes through the cushion block, one end of the two-way screw rod is fixedly connected with the hand wheel, two movable plates are symmetrically sleeved on the outer wall of the two-way screw rod on the two sides of the cushion block, threaded holes that are matched with the two-way screw rod are formed in the movable plates, two clamping rods are fixedly connected to the outer wall of the movable plate, guide strips are fixedly installed on the two sides of the top of the rotating disc and the two sides of the cushion block.

[0010] As a further scheme of the utility model: the positioning mechanism includes the first spring and the steel ball, blind holes are formed in the corresponding positions of the outer wall of the vertical block and the rotating disc, and the first spring and the steel ball are located in the blind holes.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a rotating disc, a centering and clamping mechanism, a positioning groove, a positioning mechanism and a vernier caliper are arranged, the core sample can be fixed and clamped on the cushion block by operating the centering and clamping mechanism, the positioning mechanism is matched with each positioning groove, and the core sample is measured by the vernier caliper, so that four thickness measurements are completed, the operation is simple and convenient, the point position is accurate, and the end face of the core sample does not need to be marked by drawing a line, and the use effect is good. ACCURACY OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic view of a thickness measuring device for highway detection.

[0014] Figure 2 It is a top view structural schematic view of a thickness measuring device for highway detection.

[0015] Figure 3 It is Figure 2 It is a sectional view of A in the middle.

[0016] Figure 4 It is a structural schematic view of a metal elastic sheet in a thickness measuring device for highway detection.

[0017] The base 1, the rotating disc 2, the cushion block 3, the two-way screw rod 4, the hand wheel 5, the movable plate 6, the clamping rod 7, the guide strip 8, the positioning groove 9, the vertical block 10, the first spring 11, the steel ball 12, the guide rail 13, the sliding seat 14, the vertical rod 15, the connecting seat 16, the second spring 17, the baffle plate 18, the ruler rod 19, the fixed jaw 20, the vernier 21, the movable jaw 22, the metal elastic sheet 23 and the core sample 24. PREFERRED EMBODIMENT

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] Please refer to Figures 1 to 4 In the embodiments of the utility model, a thickness measuring device for highway detection, including base 1, the top of base 1 is rotatably installed with turntable 2 through bearing seat, the top center of turntable 2 is fixedly installed with cushion block 3, the turntable 2 is installed with centering clamping mechanism, the outer peripheral wall of turntable 2 is circumferentially distributed with four positioning grooves 9, the top of base 1 is fixedly installed with vertical block 10 at one side of turntable 2, the vertical block 10 is provided with positioning mechanism matched with positioning groove 9, the top of base 1 is slidably installed with sliding seat 14 through guide rail 13, sliding seat 14 is elastically connected with connecting seat 16 through rebound mechanism, connecting seat 16 is fixedly installed with vernier caliper;

[0020] Specifically, the vernier caliper includes a scale bar 19 fixedly connected with the connecting seat 16, a fixed jaw 20 fixedly connected to the outer wall of the scale bar 19, and a vernier 21 slidably sleeved on the outer wall of the scale bar 19.

[0021] The utility model discloses a kind of thickness measuring devices for highway detection, including base 1, the top of base 1 is rotatably installed with turntable 2 through bearing seat, the top center of turntable 2 is fixedly installed with cushion block 3, the turntable 2 is installed with centering clamping mechanism, the outer peripheral wall of turntable 2 is circumferentially distributed with four positioning grooves 9, the top of base 1 is fixedly installed with vertical block 10 at one side of turntable 2, the vertical block 10 is provided with positioning mechanism matched with positioning groove 9, the top of base 1 is slidably installed with sliding seat 14 through guide rail 13, sliding seat 14 is elastically connected with connecting seat 16 through rebound mechanism, connecting seat 16 is fixedly installed with vernier caliper;

[0022] Specifically combined Figure 4 In one embodiment of the utility model, a metal spring 23 is provided in the vernier 21, and the metal spring 23 is attached to the outer wall of the scale bar 19.

[0023] By setting the metal spring 23, the resistance that the vernier 21 needs to overcome to slide on the ruler 19 can be increased, thus making it easier to stop the vernier 21 at any height on the ruler 19.

[0024] Specific combination Figure 1 In one embodiment of the present invention, a plurality of vertical rods 15 are slidably installed on the connecting seat 16, a baffle 18 is fixedly connected to the top of the vertical rod 15, the bottom of the vertical rod 15 is fixedly connected to the top of the slide seat 14, and a second spring 17 is sleeved on the outer wall of the vertical rod 15 located between the slide seat 14 and the connecting seat 16.

[0025] The vertical rod 15 guides the lifting and lowering adjustment of the connecting seat 16 and the vernier caliper. The second spring 17 ensures that the fixed claw 20 remains in contact with the bottom of the core sample 24 without human intervention.

[0026] Specific combination Figure 1 and Figure 2 In one embodiment of this utility model, the centering clamping mechanism includes a bidirectional screw 4 rotatably mounted on the top of the turntable 2 via a bearing seat. The bidirectional screw 4 passes through the pad 3. A handwheel 5 is fixedly connected to one end of the bidirectional screw 4. Two movable plates 6 are symmetrically sleeved on the outer walls of the bidirectional screw 4 on both sides of the pad 3. Each movable plate 6 has a threaded hole adapted to the bidirectional screw 4. Two clamping rods 7 are fixedly connected to the outer walls of each movable plate 6. Guide bars 8 are fixedly installed on both sides of the top of the turntable 2 on the pad 3. The lower end of the movable plate 6 is sleeved on the corresponding guide bar 8 through a guide groove.

[0027] After placing the core sample 24 on the pad block 3, the two movable plates 6 can be driven to move in opposite directions simultaneously by rotating the bidirectional screw 4 through the handwheel 5, so that the clamping rod 7 can fix and hold the core sample 24 from both sides to ensure the coaxiality between the core sample 24 and the turntable 2.

[0028] Specific combination Figure 3 In one embodiment of the present invention, the positioning mechanism includes a first spring 11 and a steel ball 12. A blind hole is provided on the outer wall of the vertical block 10 at the corresponding position of the turntable 2, and the first spring 11 and the steel ball 12 are both located in the blind hole.

[0029] With the setting of the first spring 11, when the turntable 2 is rotated to align any positioning groove 9 with the blind hole, the steel ball 12 will be stuck into the positioning groove 9 under the action of the first spring 11 to position the turntable 2, thereby ensuring the stability of the core sample 24 during the measurement process. The operation is simple and convenient.

[0030] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A thickness measuring device for highway inspection, characterized by: The utility model provides a centering and clamping mechanism for a rotary table, which comprises a base (1), a rotary table (2) rotatably mounted on the top of the base (1) by a bearing block, a cushion block (3) fixedly mounted at the top center of the rotary table (2), a centering and clamping mechanism mounted on the rotary table (2), four positioning grooves (9) circumferentially arranged on the outer circumferential wall of the rotary table (2), a vertical block (10) fixedly mounted on the top of the base (1) on one side of the rotary table (2), a positioning mechanism arranged on the vertical block (10) and matched with the positioning grooves (9), a sliding seat (14) slidably mounted on the top of the base (1) by a guide rail (13), a connecting seat (16) elastically connected to the sliding seat (14) by a rebound mechanism, and a vernier caliper fixedly mounted on the connecting seat (16).

2. The thickness measuring device for road inspection according to claim 1, characterized by: The vernier caliper comprises a ruler (19) fixedly connected to the connecting seat (16), a fixed jaw (20) fixedly connected to the lower end of the outer wall of the ruler (19), and a vernier (21) slidably sleeved on the outer wall of the ruler (19), wherein an active jaw (22) is fixedly mounted on the outer wall of the vernier (21).

3. The thickness measuring device for road inspection according to claim 2, characterized in that: A metal spring (23) is arranged in the vernier (21) and attached to the outer wall of the ruler (19).

4. The thickness measuring device for road inspection according to claim 1, characterized in that: A plurality of vertical rods (15) are slidably arranged on the connecting seat (16), wherein a baffle (18) is fixedly connected to the top end of each vertical rod (15), the bottom end of each vertical rod (15) is fixedly connected to the top of the sliding seat (14), and a second spring (17) is sleeved on the outer wall of each vertical rod (15) between the sliding seat (14) and the connecting seat (16).

5. The thickness measuring device for road inspection according to claim 1, characterized in that: The centering and clamping mechanism comprises a bidirectional screw (4) rotatably mounted on the top of the rotary table (2) by a bearing block, the bidirectional screw (4) passes through the cushion block (3), one end of the bidirectional screw (4) is fixedly connected to a hand wheel (5), two active plates (6) are symmetrically sleeved on the outer walls of the bidirectional screw (4) on both sides of the cushion block (3), a threaded hole matched with the bidirectional screw (4) is formed in each active plate (6), two clamping rods (7) are fixedly connected to the outer wall of each active plate (6), guide strips (8) are fixedly mounted on the top of the rotary table (2) on both sides of the cushion block (3), and the lower end of each active plate (6) is sleeved on the corresponding guide strip (8) through a guide groove.

6. The thickness measuring device for road inspection according to claim 1, characterized in that: The positioning mechanism comprises a first spring (11) and a steel ball (12), and a blind hole is formed in the outer wall of the vertical block (10) and the corresponding position of the rotary table (2), wherein the first spring (11) and the steel ball (12) are arranged in the blind hole.

Images