Concrete detection sampling device for subway engineering

Abstract

The utility model provides a concrete detection sampling device for subway engineering. Belongs to the technical field of concrete detection sampling. According to the technical key points, the device comprises a base, pedals are rotationally connected to the two sides of the base through fixing blocks, a working box is fixedly connected to the top of the base, handles are fixedly connected to the positions, close to the top, of the two sides of the working box, and two threaded rods distributed at intervals are rotationally connected to the interior of the working box; a power unit connected with the top ends of the two threaded rods is arranged at the top of the working box; the two threaded rods are jointly in threaded connection with a mounting main plate, a first driving motor is fixedly connected to the center of the top of the mounting main plate through a support, a sampling head is connected to the output end of the first driving motor, and a sample storage pipe is arranged on the outer ring of the sampling head; the utility model aims to provide a concrete detection sampling device for subway engineering. The pressing device is used for solving the problem of insufficient force caused by manual pressing, and the use requirements of people are met.

Description

Technical Field

[0001] The utility model relates to the field of concrete detection and sampling, in particular to a concrete detection and sampling device for subway engineering. Background Art

[0002] Concrete: refers to the general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials; a sampling device is a device used to obtain a test sample from a batch of materials whose test results can represent the entire batch of sampled materials; the term concrete usually refers to cement as a cementitious material, sand and stone as aggregates; and water (which may contain admixtures and additives) in a certain proportion and mixed, and the resulting cement concrete is also called ordinary concrete, which is widely used in civil engineering.

[0003] The current concrete detection sampling device, as described in the patent with announcement number CN212693288U, comprises a sampling bracket, an insertion port is provided in the middle of the upper side of the sampling bracket, a push sampling rod is inserted in the insertion port, a lower bracket is installed at the lower end of the push sampling rod, a sampling bracket is installed on the lower side of the lower bracket, a sampling block is inserted in the inner side of the sampling bracket, a first sampling slot, a second sampling slot and a third sampling slot are provided in the sampling block, and the capacity spaces of the first sampling slot, the second sampling slot and the third sampling slot increase successively, and a sampling port is provided on one side of the sampling bracket.

[0004] With regard to the above-mentioned related technologies, the inventor believes that the device requires the staff to manually press the pressure handle to drill and sample during the sampling stage. Manual pressing is difficult to ensure the drilling force and the vibration of drilling can easily cause hand injuries to the staff. It is dangerous and cannot guarantee work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete detection sampling device for subway engineering to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete detection sampling device for subway engineering, comprising a base, pedals are rotatably connected to both sides of the base through fixed blocks, a round hole is vertically penetrated at the center of the top of the base, a working box is fixedly connected to the top of the base, handles are fixedly connected to the positions near the top of both sides of the working box, two threaded rods are rotatably connected inside the working box, the tops of the threaded rods penetrate the working box, and a power unit connected to the tops of the two threaded rods is arranged at the top of the working box;

[0008] A mounting main board is threadedly connected to the two threaded rods, a first driving motor is fixedly connected to the top center of the mounting main board through a bracket, a sampling head is connected to the output end of the first driving motor, a sample storage tube is arranged on the outer ring of the sampling head, mounting sub-boards are fixedly connected to both sides of the sample storage tube, and the mounting sub-boards are detachably connected to the mounting main board by bolts.

[0009] As a further solution of the utility model: one side of the working box is open, a box door is hinged at the open end of the working box, and a transparent observation window is arranged on the box door.

[0010] As a further solution of the utility model: the power unit includes a power wheel fixedly connected to the top of the two threaded rods, a power belt is arranged between the two power wheels, a second drive motor is fixedly connected to the top of the working box through a bracket, and the output end of the second drive motor is connected to one of the power wheels.

[0011] As a further solution of the utility model: limit sliders are fixedly connected to both sides of the installation mainboard, and limit sliding grooves matched with the limit sliders are opened on both sides of the inner wall of the working box near the limit sliders.

[0012] As a further solution of the utility model: rubber pads are fixedly connected to the bottom of the pedal and the base, and anti-slip grooves are arranged on the top of the pedal.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] After the utility model adopts the above structure, through the cooperation between the bottom plate, the working box, the round hole, the pedal, the handle, the threaded rod, the power unit, the mounting main board, the sampling head, the sampling tube and the first driving motor, the device can have a high working efficiency. The mounting main board is adjusted in height by the first driving motor in cooperation with the threaded rod, so that the sampling head can drill into the concrete for sampling as adjusted, thereby distinguishing it from the problem of insufficient force caused by manual pressing and meeting people's use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0016] Figure 1 The figure is a schematic diagram of the main structure of a concrete detection and sampling device for subway engineering.

[0017] Figure 2 This is a schematic diagram of the internal structure of a concrete detection and sampling device for subway engineering.

[0018] In the figure: 1. base; 2. pedal; 3. round hole; 4. working box; 5. handle; 6. threaded rod; 7. power unit; 8. installation of main board; 9. first drive motor; 10. sampling head; 11. sample storage tube; 12. installation of sub-board; 13. box door; 14. transparent observation window; 15. limit slider; 16. limit slide groove; 17. rubber pad; 18. anti-slip pattern; 701. power wheel; 702. power belt; 703. second drive motor. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] See also Figure 1-2 A concrete detection sampling device for subway engineering includes a base 1, and pedals 2 are rotatably connected to the two sides of the base 1 through fixed blocks. A circular hole 3 is provided in the vertical direction at the top center of the base 1. The diameter of the circular hole 3 is larger than the diameter of the sampling head 10, which can prevent the sampling head 10 from being damaged by friction with the base 1 during sampling. A working box 4 is fixedly connected to the top of the base 1, and handles 5 are fixedly connected to the positions near the top of the two sides of the working box 4, which can facilitate the transportation of the device. Two threaded rods 6 are rotatably connected inside the working box 4, and the tops of the threaded rods 6 pass through the working box 4. A power unit 7 connected to the tops of the two threaded rods 6 is provided at the top of the working box 4. The power unit 7 is started to drive the two threaded rods 6 to rotate, thereby driving the installation main board 8 to descend. As the installation main board 8 descends, the positions of the first drive motor 9 and the sampling head 10 are adjusted to descend. A mounting main board 8 is threadedly connected to the two threaded rods 6. A first drive motor 9 is fixedly connected to the top center of the mounting main board 8 through a bracket. A sampling head 10 is connected to the output end of the first drive motor 9 for drilling sampling. A sample storage tube 11 is arranged on the outer ring of the sampling head 10. Broken concrete fragments and powder enter the sample storage tube 11 through the grooves on the outer wall of the sampling head 10. Mounting sub-plates 12 are fixedly connected to both sides of the sample storage tube 11. The mounting sub-plates 12 are detachably connected to the mounting main board 8 by bolts.

[0021] Furthermore, one side of the working box 4 is open, and a box door 13 is hinged at the open end of the working box 4, which can facilitate the removal of samples after the sampling is completed. The box door 13 can block the flying dust during the sampling process. A transparent observation window 14 is provided on the box door 13, and the sampling progress can be observed in real time.

[0022] Furthermore, the power unit 7 includes a power wheel 701 fixedly connected to the top of the two threaded rods 6, a power belt 702 is arranged between the two power wheels 701, and a second drive motor 703 is fixedly connected to the top of the working box 4 through a bracket, and the output end of the second drive motor 703 is connected to one of the power wheels 701. When the second drive motor 703 is started, the threaded rod 6 is driven to rotate through the cooperation between the power wheel 701 and the power belt 702.

[0023] Furthermore, the limiting sliders 15 are fixedly connected on both sides of the installation main board 8, and limiting grooves 16 adapted to the limiting sliders 15 are opened on both sides of the inner wall of the working box 4 near the limiting sliders 15. Through the cooperation of the limiting grooves 16 and the limiting sliders 15, a certain sliding support force can be provided for the installation main board 8 when it moves.

[0024] Furthermore, a rubber pad 17 is fixedly connected to the bottom of the pedal 2 and the base 1, and an anti-slip groove 18 is provided on the top of the pedal 2, which can increase the friction between the base 1 and the pedal 2 and the ground, making the device more stable when sampling.

[0025] When in use, the device is moved to the sampling position via the handle 5, and the staff fixes the device by stepping on the pedal 2 with both feet. Then, the power unit 7 is started to drive the two threaded rods 6 to rotate, thereby driving the installation main board 8 to descend. As the installation main board 8 descends, the position of the first drive motor 9 is adjusted downward and the first drive motor 9 can drive the sampling head 10 to rotate. The sampling head 10 passes through the circular hole 3 to quickly crush and sample the concrete on the ground. The crushed concrete fragments and powder enter the interior of the sample tube 11 through the grooves on the outer wall of the sampling head 10. After the sampling is completed, the sample tube 11 can be removed by removing the bolts and the concrete sample can be taken out for testing.

[0026] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A concrete detection sampling device for subway engineering, comprising a base (1), It is characterized in that Pedals (2) are rotatably connected to both sides of the base (1) via fixed blocks; a circular hole (3) is provided in the vertical direction through the center position of the top of the base (1); a working box (4) is fixedly connected to the top of the base (1); handles (5) are fixedly connected to the positions near the top of both sides of the working box (4); two threaded rods (6) are rotatably connected to the inside of the working box (4); the tops of the threaded rods (6) pass through the working box (4); and a power unit (7) connected to the tops of the two threaded rods (6) is provided at the top of the working box (4); A mounting main board (8) is threadedly connected to the two threaded rods (6); a first drive motor (9) is fixedly connected to the top center of the mounting main board (8) via a bracket; a sampling head (10) is connected to the output end of the first drive motor (9); a sample storage tube (11) is arranged on the outer ring of the sampling head (10); mounting sub-boards (12) are fixedly connected to both sides of the sample storage tube (11); and the mounting sub-boards (12) are detachably connected to the mounting main board (8) via bolts.

2. A concrete detection sampling device for subway engineering according to claim 1, It is characterized in that One side of the working box (4) is open, a box door (13) is hinged at the open end of the working box (4), and a transparent observation window (14) is arranged on the box door (13).

3. A concrete detection sampling device for subway engineering according to claim 1, It is characterized in that The power unit (7) comprises a power wheel (701) fixedly connected to the top of the two threaded rods (6), a power belt (702) is arranged between the two power wheels (701), a second drive motor (703) is fixedly connected to the top of the working box (4) via a bracket, and an output end of the second drive motor (703) is connected to one of the power wheels (701).

4. A concrete detection sampling device for subway engineering according to claim 1, It is characterized in that The limiting slide blocks (15) are fixedly connected to both sides of the mounting main board (8), and limiting sliding grooves (16) adapted to the limiting slide blocks (15) are provided on both sides of the inner wall of the working box (4) near the limiting slide blocks (15).

5. A concrete detection sampling device for subway engineering according to claim 1, It is characterized in that The bottoms of the pedal (2) and the base (1) are fixedly connected with rubber pads (17), and the top of the pedal (2) is provided with anti-slip grooves (18).

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