Asphalt pavement core sample grabbing device

Abstract

The utility model discloses an asphalt pavement core sample grabbing device which comprises a supporting rod, a hinged connecting piece installed at one end of the supporting rod, a plurality of clamping jaws hinged to the hinged connecting piece and a pressing mechanism arranged on the supporting rod and applying force to the clamping jaws. According to the utility model, an operator holds the second grip by hand, penetrates the clamping claws into the corresponding gaps, and then operates the first grip, so that the first grip clamps a pavement core sample through the clamping claws, and the pavement core sample is extracted. Compared with a traditional mode, the device is compact in structure and suitable for extracting the road surface core sample from a small gap, and meanwhile follow-up detection is not affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to road maintenance technical field relates to an asphalt pavement core sample grabbing device. BACKGROUND

[0002] At present, on the actual asphalt pavement, the road detection personnel uses the coring machine to drill the core, and because the height of the asphalt pavement core sample is flush with the pavement, and after drilling the core, the gap between the core sample and the original pavement is small, so the large grabbing tool cannot be deeply inserted, which leads to the inability to directly grab the pavement core sample. The traditional method has many shortcomings, on the one hand, the efficiency of grabbing the core sample is relatively low, and on the other hand, the core sample needs to be damaged during grabbing, which affects the subsequent detection results.

[0003] To solve the above problems, the utility model provides an asphalt pavement core sample grabbing device. UTILITY MODEL CONTENT

[0004] To solve the problems in the background art, the utility model provides an asphalt pavement core sample grabbing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: an asphalt pavement core sample grabbing device, comprising a supporting rod, a hinged connecting piece installed at one end of the supporting rod, a plurality of clamping claws hinged to the hinged connecting piece, and a pressing mechanism arranged on the supporting rod and applying force to the plurality of clamping claws.

[0006] Further, the plurality of clamping claws are L-shaped, comprising a hinged segment and a clamping segment; the end of the hinged segment is hinged to the hinged connecting piece, and the clamping segment is used for clamping the pavement core sample.

[0007] Further, the clamping segment is arranged in an arc shape and is adapted to the pavement core sample.

[0008] Further, the side wall of the clamping segment towards the pavement core sample is provided with a plurality of upwardly inclined barb portions.

[0009] Further, the side wall of the clamping segment towards the pavement core sample is provided with a plurality of horizontal hook portions.

[0010] Further, the pressing mechanism comprises a connecting pipe sleeved on the supporting rod and capable of moving axially along the supporting rod, and a plurality of connecting rods hinged between the connecting pipe and the clamping claws.

[0011] Further, a first handle is sleeved on the supporting rod and moves axially along the supporting rod, and the first handle is fixedly connected with the connecting pipe.

[0012] Further, a second handle is installed at the end of the supporting rod away from the hinged connecting piece.

[0013] Compared with the prior art, the asphalt pavement core sample grabbing device has the following beneficial effects: in the utility model, the operator holds the second handle, and inserts the clamping jaw into the corresponding gap, then operates the first handle, so that the clamping jaw clamps the pavement core sample, thereby extracting the pavement core sample. Compared with the traditional method, the device has compact structure, and is suitable for extracting the pavement core sample from the small gap, and meanwhile, does not affect subsequent detection. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 is another direction structure schematic view of the utility model;

[0016] Figure 3 is a front view of the utility model;

[0017] Figure 4 is Figure 3 A part enlarged view in the middle.

[0018] In the drawing: 1, support rod; 2, hinged connecting piece; 3, clamping jaw; 4, barb part; 5, transverse hook part; 6, connecting pipe; 7, connecting rod; 8, first handle; 9, second handle; 10, pavement core sample. DETAILED DESCRIPTION

[0019] 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, and 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 the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] As Figures 1-4 shown in the utility model, the technical scheme is as follows: an asphalt pavement core sample grabbing device, comprising a support rod 1, a hinged connecting piece 2 installed at one end of the support rod 1, a plurality of clamping jaws 3 hinged to the hinged connecting piece 2, and a pressing mechanism arranged on the support rod 1 and applying force to the plurality of clamping jaws 3. The number of clamping jaws 3 is at least three to ensure that the pavement core sample 10 can be clamped stably. When the clamping jaws 3 are inserted into the gap, the operator applies pressure to the plurality of clamping jaws 3 through the pressing mechanism, the three clamping jaws 3 clamp the pavement core sample 10, and then the pavement core sample 10 is taken out from the original pavement foundation pit.

[0021] In the embodiment, the plurality of claws 3 are L-shaped, comprising a hinged segment and a clamping segment, the end of the hinged segment is hinged to the hinged connecting piece 2, wherein the hinge between the hinged segment and the hinged connecting piece 2 is arranged in a conventional manner, which will not be described in detail in this embodiment. The clamping segments of the three claws 3 are matched and clamp the road core sample 10.

[0022] In the embodiment, the clamping segment is arc-shaped and matched with the road core sample 10. When the tester drills the core with the coring machine, the gap generated is a ring structure, and the arc-shaped clamping segment is more suitable for the gap, which facilitates the claws 3 to penetrate into the gap and reduces the operation difficulty.

[0023] In the embodiment, the clamping segment is arc-shaped and matched with the road core sample 10. When the tester drills the core with the coring machine, the gap generated is a ring structure, and the arc-shaped clamping segment is more suitable for the gap, which facilitates the claws 3 to penetrate into the gap and reduces the operation difficulty.

[0024] In the embodiment, the clamping segment is arc-shaped and matched with the road core sample 10. When the tester drills the core with the coring machine, the gap generated is a ring structure, and the arc-shaped clamping segment is more suitable for the gap, which facilitates the claws 3 to penetrate into the gap and reduces the operation difficulty.

[0025] It should be noted that the size of the barb 4 and the transverse hook 5 is small, and after penetrating into the road core sample 10, it does not affect the subsequent detection operation.

[0026] In the embodiment, the clamping mechanism comprises a connecting pipe 6 sleeved on the support rod 1 and moving axially along the support rod 1, and a plurality of connecting rods 7 hinged between the connecting pipe 6 and the claws 3. The connecting pipe 6 is provided with a hinge arm radially on the end wall, the hinge arm is also provided on the hinge segment of the claw 3, and the connecting rod 7 is hinged at both ends of the hinge arm of the connecting pipe 6 and the hinge segment. Three claws 3 correspond to a plurality of connecting rods 7. When in use, the connecting pipe 6 is pushed downward, the connecting pipe 6 pushes the claws 3 to move through the connecting rods 7, and the claws 3 move towards the side wall of the road core sample 10 and clamp it.

[0027] In the embodiment, the first handle 8 is sleeved on the support rod 1 and moves axially along the support rod 1, and the first handle 8 is fixedly connected with the connecting pipe 6. The first handle 8 is made of rubber structure, which improves the holding force of the operator.

[0028] In the embodiment, the second handle 9 is installed at the end of the support rod 1 away from the hinged connecting piece 2. The second handle 9 is made of rubber structure, which improves the holding force of the operator.

[0029] In use, the operator holds the second handle 9 with one hand, then inserts the clamping jaw 3 into the pre-drilled gap, then holds the first handle 8 with the other hand and pushes the first handle 8 downwards, at which time the clamping jaw 3 clamps the road core sample 10; then rotates the road core sample 10 to disconnect the road core sample 10 from the original road surface; then lifts upwards until the road core sample 10 is removed; then pushes the first handle 8 upwards and places the road core sample 10 at a position to be measured, thereby completing the extraction of the road core sample 10.

[0030] Although the utility model has been described 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. An asphalt pavement core sample grabbing device, characterized by: The utility model relates to a road core sampler, comprising a support rod (1), a hinged connecting piece (2) mounted at one end of the support rod (1), a plurality of claws (3) hinged to the hinged connecting piece (2), and a pressing mechanism arranged on the support rod (1) and exerting force on the plurality of claws (3).

2. The asphalt pavement core sample grabbing device of claim 1, wherein: The plurality of claws (3) are L-shaped, comprising a hinged section and a clamping section; the hinged section is hinged at the end to the hinged connecting piece (2), and the clamping section is used for clamping a road core sample (10).

3. The asphalt pavement core sample grabbing device of claim 2, wherein: The clamping section is arc-shaped and adapted to the road core sample (10).

4. The asphalt pavement core sample grabbing device of claim 3, wherein: The side wall of the clamping section facing the road core sample (10) is provided with a plurality of upwardly inclined barb portions (4).

5. The asphalt pavement core sample grabbing device of claim 3, wherein: The side wall of the clamping section facing the road core sample (10) is provided with a plurality of horizontal hook portions (5).

6. The asphalt pavement core sample grabbing device of claim 2, wherein: The pressing mechanism comprises a connecting pipe (6) sleeved on the support rod (1) and capable of moving axially along the support rod (1), and a plurality of connecting rods (7) hinged between the connecting pipe (6) and the claws (3).

7. The asphalt pavement core sample grabbing device of claim 6, wherein: A first handle (8) is sleeved on the support rod (1) and moves axially along the support rod (1), and the first handle (8) is fixedly connected to the connecting pipe (6).

8. The asphalt pavement core sample grabbing device of claim 1, wherein: A second handle (9) is mounted at the end of the support rod (1) away from the hinged connecting piece (2).

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