Road construction detection coring device

Abstract

The utility model provides a road construction detection coring device which comprises a machine frame, a drill cylinder driving mechanism is arranged in the machine frame in a sliding mode, a drill cylinder is arranged at the bottom end of the drill cylinder driving mechanism, a protective cylinder is sleeved on the outer side of the drill cylinder driving mechanism and the outer side of the drill cylinder, and the protective cylinder is arranged in the machine frame in a sliding mode in the vertical direction. A screw rod is rotationally arranged at the top of the drilling cylinder driving mechanism and is in threaded connection with the rack, and a hand wheel is fixedly arranged at the top end of the screw rod; a water diversion cavity is fixedly formed in the outer side of the middle of the pile casing, and through holes communicating with the water diversion cavity are evenly formed in the pile casing; in the downward moving process of the drill cylinder, the pile casing synchronously moves downwards along with the drill cylinder to make contact with the ground, the drill cylinder drills into the road surface, the pile casing keeps the state of abutting against the road surface, the drill cylinder rotating at a high speed is separated from the outer portion through the sliding cylinder, personnel are prevented from making direct contact with the drill cylinder rotating at the high speed, potential safety hazards are reduced, and working efficiency is improved. Meanwhile, slurry can be prevented from splashing outwards.

Description

Technical Field

[0001] This utility model belongs to the field of road construction inspection technology, and specifically relates to a core sampling device for road construction inspection. Background Technology

[0002] In road construction projects, core sampling is commonly used to assess the quality of road surfaces. This involves using a concrete core drill to directly sample the concrete and test its strength and defects.

[0003] In the prior art, Chinese utility model patent document with authorization announcement number CN219511848U discloses a drilling and coring device for concrete testing. In this device, the drilling power unit and the concrete coring drill bit are set on one side of the mounting frame. During the coring process, the drilling power unit drives the concrete coring drill bit to rotate at high speed. The high-speed rotating concrete coring drill bit is exposed, posing a safety hazard. Furthermore, during the coring process, cooling water is sprayed onto the concrete coring drill bit to generate mud. The high-speed rotating concrete coring drill bit will cause the mud to splash onto the construction personnel and equipment, causing pollution.

[0004] Therefore, it is necessary to design a road construction inspection core sampling device that reduces safety hazards and avoids mud splashing to solve the current technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a road construction inspection core sampling device that reduces safety hazards and avoids mud splashing.

[0006] The technical solution of this utility model is as follows: a road construction inspection core sampling device, including a frame, a drill cylinder drive mechanism slidably arranged inside the frame, a drill cylinder at the bottom end of the drill cylinder drive mechanism, a protective sleeve fitted on the outside of the drill cylinder drive mechanism and the drill cylinder, the protective sleeve being slidably arranged in the frame in a vertical direction, a screw being rotatably arranged at the top of the drill cylinder drive mechanism, the screw being threadedly connected to the frame, and a handwheel being fixedly arranged at the top end of the screw; a water distribution cavity is fixedly arranged on the outer side of the middle part of the protective sleeve, and through holes communicating with the water distribution cavity are evenly opened inside the protective sleeve.

[0007] Furthermore, at least two guide rods are symmetrically arranged on the top of the drill barrel drive mechanism. The guide rods are slidably connected to the frame, and the top of the casing is slidably connected to the guide rods. The top of the casing is provided with a clearance hole corresponding to the screw.

[0008] Furthermore, the frame has a top plate and a base frame that are parallel to each other. The top plate and the base frame are fixedly supported by columns. The guide rod is slidably connected to the top plate. The screw is threadedly connected to the top plate. A return spring is fitted on the outside of the guide rod between the top plate and the upper end of the protective cylinder.

[0009] Furthermore, a support plate parallel to the base frame is fixedly installed on the column, and the support plate is slidably fitted onto the outside of the protective sleeve.

[0010] Furthermore, a support ring is fixedly provided inside the lower end of the casing, and the drill barrel is rotatably disposed inside the support ring.

[0011] Furthermore, the inner side of the support ring has a first water passage groove evenly distributed.

[0012] Furthermore, a second water passage groove is uniformly provided at the bottom end of the support ring and the protective sleeve.

[0013] Furthermore, heat dissipation vents are evenly provided on the outer side of the upper end of the protective sleeve.

[0014] The beneficial effects of this utility model are:

[0015] (1) In this utility model, during the process of the drill barrel driving mechanism driving the drill barrel to perform core extraction, the screw can be rotated by handwheel to drive the drill barrel to gradually move down into the road surface for core extraction. During the drilling process, cooling water is injected into the water distribution chamber. The cooling water in the water distribution chamber enters the outside of the drill barrel through the through hole in the inner wall of the casing to achieve cooling and temperature reduction of the drill barrel.

[0016] (2) During the process of the drill pipe moving down, the casing moves down synchronously with the drill pipe and comes into contact with the ground. The drill pipe drills into the road surface, and the casing remains in contact with the road surface. The high-speed rotating drill pipe is separated from the outside by the sliding tube, which avoids direct contact between personnel and the high-speed rotating drill pipe, reduces safety hazards, and at the same time prevents mud from splashing outward. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of the road construction inspection core sampling device of this utility model.

[0018] Figure 2 This is the second schematic diagram of the road construction inspection core sampling device of this utility model.

[0019] Figure 3 for Figure 2 Cross-sectional view at point AA.

[0020] Figure 4 This is the third schematic diagram of the road construction inspection core sampling device in this utility model.

[0021] Figure 5 for Figure 4 A magnified view of a section at point B. Detailed Implementation

[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0023] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] like Figures 1 to 4 As shown, the road construction inspection core sampling device includes a frame 1. A drill barrel drive mechanism 5 is slidably mounted inside the frame 1. A drill barrel 7 is mounted at the bottom end of the drill barrel drive mechanism 5. A protective casing 2 is fitted around the drill barrel drive mechanism 5 and the drill barrel. The protective casing 2 is slidably mounted vertically within the frame 1. A screw 3 is rotatably mounted on the top of the drill barrel drive mechanism 5, and the screw 3 is threadedly connected to the frame 1. A handwheel 4 is fixedly mounted on the top end of the screw 3. A water distribution chamber 21 is fixedly mounted on the outer side of the middle part of the protective casing 2. Through holes communicating with the water distribution chamber 21 are evenly distributed inside the protective casing 2. In this embodiment, during the process of the drill barrel drive mechanism 5 driving the drill barrel 7 to perform core sampling, rotating the screw 3 by the handwheel 4 can drive the drill barrel 7 to gradually move downwards and drill into the target area. Core sampling is performed on the road surface. During the drilling process, cooling water is injected into the water distribution chamber 21. The cooling water in the water distribution chamber 21 enters the outside of the drill barrel 7 through the through holes in the inner wall of the casing 2, thereby cooling the drill barrel 7. As the drill barrel 7 moves down, the casing 2 moves down synchronously with the drill barrel 7 and comes into contact with the ground. The drill barrel 7 drills into the road surface, and the casing 2 remains in contact with the road surface. The high-speed rotating drill barrel 7 is separated from the outside by the sliding tube 2, which prevents personnel from directly contacting the high-speed rotating drill barrel, reduces safety hazards, and also prevents mud from splashing outward. The outside of the water distribution chamber 21 is equipped with a pipe joint that connects to the inside of the chamber. The pipe joint is connected to the external water supply pipeline to supply cooling water to the inside of the water distribution chamber 21.

[0025] In some embodiments, the drill barrel drive mechanism 5 has a mounting housing, inside which a drill barrel drive motor is installed. The output shaft of the drill barrel drive motor is connected to the drill barrel 7 via a transmission connection. The top of the mounting housing is threadedly connected to the bottom end of the screw 3. At least two guide rods 6 are symmetrically arranged on the top of the drill barrel drive mechanism 5. The guide rods 6 are slidably connected to the frame 1. The top end of the protective cylinder 2 is slidably connected to the guide rods 6. The top end of the protective cylinder 2 is provided with a clearance hole corresponding to the screw 3. The drill barrel drive mechanism 5 moves up and down by rotating the screw 3 via the handwheel 4. During the movement, the guide rods 6 are slidably connected to the top of the frame 1, ensuring the stability of the up and down movement of the drill barrel drive mechanism 5 and the drill barrel 7, and avoiding changes in the angle of the drill barrel 7 during core extraction.

[0026] In some embodiments, the frame 1 has a top plate 13 and a base frame 12 that are parallel to each other. The top plate 13 and the base frame 12 are fixedly supported by a column 11. The guide rod 6 is slidably connected to the top plate 13, and the screw 3 is threadedly connected to the top plate 13. A return spring 61 is fitted on the outside of the guide rod 6 between the top plate 13 and the upper end of the casing 2. When the drill barrel drive mechanism 5 is in the raised position, the return spring 61 is compressed. During the process of gradually lowering the drill barrel drive mechanism 5, the return spring 61 is gradually released, pushing the casing 2 to move down until the bottom end of the casing 2 abuts against the ground. The elastic force of the return spring 61 can make the casing 2 abut against the ground before the drill barrel 7 cores the casing.

[0027] In some embodiments, a support plate 14 parallel to the base frame 12 is fixedly provided on the column 11, and the support plate 14 is slidably fitted on the outside of the protective cylinder 2; the support plate 14 provides support for the lower end of the protective cylinder 2, ensuring the stability of the protective cylinder 2.

[0028] In some embodiments, a support ring 22 is fixedly provided inside the lower end of the casing 2, and the drill barrel 7 is rotatably disposed inside the support ring 22; the stability of the lower end of the casing 2 is improved by supporting the cross plate 14, and the support ring 22 is provided inside the casing 2 to provide support for the lower end of the drill barrel 7, which can improve the stability of the lower end of the drill barrel 7.

[0029] In some embodiments, such as Figure 5 As shown, the inner side of the support ring 22 has a first water passage groove 221. Cooling water enters from the water distribution chamber 21 between the casing 2 and the drill barrel 7. Through the first water passage groove 221, the cooling water can move further downward and enter the gap between the road surface and the drill barrel 7 to achieve the purpose of cooling.

[0030] In some embodiments, a second water channel 222 is uniformly provided at the bottom end of the support ring 22 and the casing 2; the second water channel 222 can allow the mud generated during the core extraction process to flow out from the bottom end of the casing 2, preventing the mud from accumulating inside the casing 2 and affecting heat dissipation.

[0031] In some embodiments, heat dissipation vents 23 are evenly provided on the outer side of the upper end of the casing 2. The heat dissipation vents 23 can dissipate the heat generated by the drill barrel 7 and the drill barrel drive mechanism 5 during the core extraction process, thereby achieving the purpose of heat dissipation.

[0032] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0033] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A road work detection coring device characterized by: The device includes a frame, a drill barrel drive mechanism is slidably disposed inside the frame, a drill barrel is disposed at the bottom end of the drill barrel drive mechanism, a protective sleeve is fitted on the outside of the drill barrel drive mechanism and the drill barrel, the protective sleeve is slidably disposed in the frame in a vertical direction, a screw is rotatably disposed at the top of the drill barrel drive mechanism, the screw is threadedly connected to the frame, and a handwheel is fixedly disposed at the top end of the screw. A water-dividing cavity is fixedly provided on the outer side of the middle part of the casing, and through holes that communicate with the water-dividing cavity are evenly opened inside the casing.

2. The road work detection coring device of claim 1, wherein: At least two guide rods are symmetrically arranged on the top of the drill barrel drive mechanism. The guide rods are slidably connected to the frame. The top of the casing is slidably connected to the guide rods. The top of the casing is provided with a clearance hole corresponding to the screw.

3. The road work detection coring device of claim 2, wherein: The frame has a top plate and a base frame that are parallel to each other. The top plate and the base frame are fixedly supported by columns. The guide rod is slidably connected to the top plate. The screw is threadedly connected to the top plate. A return spring is fitted on the outside of the guide rod between the top plate and the upper end of the protective cylinder.

4. The road work detection coring device of claim 3, wherein: A support plate parallel to the base frame is fixedly installed on the column, and the support plate is slidably fitted onto the outside of the protective sleeve.

5. The road work detection coring device of claim 4, wherein: A support ring is fixedly installed inside the lower end of the casing, and the drill barrel is rotatably installed inside the support ring.

6. The road work detection coring device of claim 5, wherein: The inner side of the support ring has a first water passage groove evenly distributed.

7. The road work detection coring device of claim 5, wherein: The bottom ends of the support ring and the protective sleeve are evenly provided with second water passage grooves.

8. The road work detection coring device of claim 1, wherein: The outer side of the upper end of the casing is provided with heat dissipation vents.

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