A sampling device for highway engineering test detection

Abstract

The utility model discloses a sampling device for highway engineering test and detection, including base, the top center of base is equipped with hand screw bolt through screw hole cooperation, the bottom of hand screw bolt is rotatablely connected with the flat plate through the bearing seat, a plurality of wedge blocks are slidably equipped and installed through the wedge slot on the flat plate, the top of wedge block is slidably connected with base through the guide mechanism, the bottom of wedge block is detachably installed with the clamping plate, when using, after completing the drilling on the road surface of highway, the bottom of each clamping plate is inserted into the sampling hole, until the bottom of wedge block is against the road surface, then rotates hand screw bolt on the base, to promote the flat plate to move down, can utilize wedge slot and wedge block's cooperation to promote each wedge block to draw close to each other, thereby utilizes a plurality of clamping plates to clamp the top of core sample simultaneously, then pulls up the base, can draw out the core sample from the sampling hole, and the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering technology, specifically a sampling device for highway engineering testing and inspection. Background Technology

[0002] In highway engineering, core sampling of the road surface is a very important and direct testing method. By "dissecting" the road surface, it provides us with crucial first-hand data for evaluating project quality, diagnosing road defects, and guiding maintenance decisions, making it an important link in ensuring the service life and safety of roads.

[0003] Currently, when core sampling is performed on road surfaces, a drilling rig is typically used to drill a hole in the road surface to form a core sample. Then, pliers or other equipment are used to clamp the core sample out of the hole. In practice, the operator needs to hold one handle of the clamp with each hand, insert the two clamp plates into the hole, bring their hands together to make the clamp plates fit tightly against both sides of the core sample, and then pull the clamp upwards to pull the core sample out of the hole. Although the operation is simple, for thick concrete roads with heavy concrete pavement, the weight of a single core sample may reach 7 or 8 kilograms or even more. At this time, it is quite strenuous to operate the clamps to hold the core sample tightly and to pull the core sample upwards, and the core sample is very likely to slip between the clamp plates. Therefore, we propose a sampling device for highway engineering testing. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for highway engineering testing and inspection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sampling device for highway engineering testing includes a base. A hand-tightening bolt is threaded through a threaded hole at the top center of the base. A flat plate is rotatably connected to the bottom end of the hand-tightening bolt through a bearing seat. Multiple wedge blocks are slidably installed on the flat plate through wedge grooves. The top end of each wedge block is slidably connected to the base through a guide mechanism. A clamping plate is detachably installed at the bottom end of each wedge block.

[0007] As a further embodiment of this utility model, a rubber sheet is fixedly installed on the outer wall of the clamping plate.

[0008] As a further embodiment of this utility model: the guiding mechanism includes a slide fixedly connected to the base, a slider slidably installed inside the slide, the top end of the wedge block being fixedly connected to the corresponding slider, a guide rod slidably installed on the slider, one end of the guide rod being fixedly connected to the inner wall of the slide, and the other end of the guide rod being fixedly connected to the base.

[0009] As a further embodiment of this utility model: a spring is sleeved on the outer wall of the guide rod located between the base and the slider.

[0010] As a further embodiment of this utility model: the bottom end of the wedge block is provided with a slot adapted to the clamping plate, the top end of the clamping plate is located in the slot, the outer wall of the wedge block is provided with a stepped hole connected to the slot near the bottom end, a screw is provided in the stepped hole, and a threaded hole adapted to the screw is provided through the corresponding part of the outer wall of the clamping plate and the stepped hole, and the screw is connected with the threaded hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When using this invention, after drilling holes in the road surface, insert the bottom ends of each clamping plate into the sampling hole until the bottom end of the wedge block touches the road surface. Then, turn the hand-tightening bolt on the base to push the plate downward. The wedge groove and the wedge block cooperate to push the wedge blocks closer together, thereby using multiple clamping plates to clamp the top of the core sample at the same time. Then, pull the base upward to extract the core sample from the sampling hole. The operation is simple and convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a sampling device used for testing and inspection in highway engineering.

[0014] Figure 2 This is a schematic diagram of the base structure in a sampling device used for highway engineering testing.

[0015] Figure 3 This is a schematic diagram of the use of a sampling device for highway engineering testing.

[0016] Among them, the base is 1, the threaded hole is 2, the hand-tightening bolt is 3, the slide is 4, the slider is 5, the guide rod is 6, the spring is 7, the plate is 8, the wedge groove is 9, the wedge block is 10, the clamping plate is 11, the rubber sheet is 12, the stepped hole is 13, the screw is 14, the road is 15, the core sample is 16, and the sampling hole is 17. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-3In this embodiment of the utility model, a sampling device for highway engineering testing includes a base 1. A hand-tightening bolt 3 is inserted through a threaded hole 2 at the top center of the base 1. The bottom end of the hand-tightening bolt 3 is rotatably connected to a plate 8 through a bearing seat. Multiple wedge blocks 10 are slidably installed on the plate 8 through a wedge groove 9. The top end of the wedge block 10 is slidably connected to the base 1 through a guide mechanism. A clamping plate 11 is detachably installed at the bottom end of the wedge block 10.

[0019] By adopting the above-mentioned scheme, when using this utility model, after drilling holes on the road surface of highway 15, the bottom ends of each clamping plate 11 are inserted into the sampling hole 17 until the bottom end of the wedge block 10 touches the road surface. Then, the hand-tightening bolt 3 on the base 1 is rotated to push the plate 8 downward. The wedge groove 9 and the wedge block 10 are then used to push each wedge block 10 to move closer to each other, thereby using multiple clamping plates 11 to clamp the top end of the core sample 16 at the same time. Then, the base 1 is pulled upward to extract the core sample 16 from the sampling hole 17. The operation is simple and convenient.

[0020] Specific combination Figure 1 and Figure 3 In one embodiment of this utility model, a rubber sheet 12 is fixedly installed on the outer wall of the clamping plate 11. With the setting of the rubber sheet 12, after the top of the core sample 16 is clamped by multiple clamping plates 11 during use, the core sample 16 can be effectively prevented from slipping out between the clamping plates 11 and the core sample 16 can be prevented from being damaged due to excessive clamping force.

[0021] Specific combination Figure 1-3 In one embodiment of the present invention, the guiding mechanism includes a slide block 4 fixedly connected to the base 1, a slider 5 slidably installed inside the slide block 4, the top end of the wedge block 10 fixedly connected to the corresponding slider 5, a guide rod 6 slidably installed on the slider 5, one end of the guide rod 6 fixedly connected to the inner wall of the slide block 4, and the other end of the guide rod 6 fixedly connected to the base 1.

[0022] The cooperation between slider 5, guide rod 6, and slide block 4 ensures the stability of the sliding of each wedge block 10.

[0023] Specific combination Figure 2 and Figure 3 The guide rod 6 is fitted with a spring 7 on its outer wall between the base 1 and the slider 5. The spring 7 can always apply a thrust away from the base 1 to the slider 5, so that the inclined surface of each wedge block 10 can always fit with the inclined surface in the wedge groove 9, so as to facilitate the adjustment of the spacing of the wedge blocks 10.

[0024] Specific combination Figure 1 and 3In one embodiment of the present invention, the bottom end of the wedge block 10 is provided with a slot adapted to the clamping plate 11, the top end of the clamping plate 11 is located in the slot, the outer wall of the wedge block 10 is provided with a stepped hole 13 near the bottom end that communicates with the slot, a screw 14 is provided in the stepped hole 13, and a threaded hole adapted to the screw 14 is provided through the corresponding part of the outer wall of the clamping plate 11 and the stepped hole 13, and the screw 14 is connected with the threaded hole.

[0025] The slot design and the engagement of the screw 14 with the threaded hole facilitate the replacement of the damaged clamp 11 at the bottom of the wedge block 10.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampling device for testing and inspection in highway engineering, characterized in that: The base (1) includes a base (1), and a hand-tightening bolt (3) is inserted through a threaded hole (2) at the top center of the base (1). The bottom end of the hand-tightening bolt (3) is rotatably connected to a plate (8) through a bearing seat. Multiple wedge blocks (10) are slidably installed on the plate (8) through a wedge groove (9). The top end of the wedge block (10) is slidably connected to the base (1) through a guide mechanism. A clamping plate (11) is detachably installed at the bottom end of the wedge block (10).

2. The sampling device for highway engineering testing and inspection according to claim 1, characterized in that: A rubber sheet (12) is fixedly installed on the outer wall of the clamp (11).

3. The sampling device for highway engineering testing and inspection according to claim 1, characterized in that: The guiding mechanism includes a slide (4) fixedly connected to the base (1), a slider (5) slidably installed inside the slide (4), the top of the wedge block (10) being fixedly connected to the corresponding slider (5), a guide rod (6) slidably installed on the slider (5), one end of the guide rod (6) being fixedly connected to the inner wall of the slide (4), and the other end of the guide rod (6) being fixedly connected to the base (1).

4. A sampling device for highway engineering testing and inspection according to claim 3, characterized in that: The guide rod (6) is fitted with a spring (7) on its outer wall between the base (1) and the slider (5).

5. A sampling device for highway engineering testing and inspection according to claim 1, characterized in that: The bottom end of the wedge block (10) is provided with a slot that matches the clamping plate (11). The top end of the clamping plate (11) is located in the slot. The outer wall of the wedge block (10) near the bottom end is provided with a stepped hole (13) that communicates with the slot. A screw (14) is provided in the stepped hole (13). A threaded hole that matches the screw (14) is provided through the corresponding part of the outer wall of the clamping plate (11) and the stepped hole (13). The screw (14) is connected to the threaded hole.

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