A sampling device for construction engineering quality detection

Abstract

The application belongs to the technical field of sampling devices and discloses a sampling device for construction engineering quality detection, which comprises a supporting frame, a lifting frame installed on the upper surface of the supporting frame, universal wheels installed at the bottom of the supporting frame, a driving motor installed on the upper surface of the lifting frame and a threaded rod connected with the output shaft end of the driving motor, a sliding block is slidably arranged in the lifting frame, the threaded rod penetrates through the sliding block and is threadedly connected, a mounting box is fixed on the side wall of the sliding block, a box door is arranged on the side wall of the mounting box, a storage tube is installed on the bottom surface of the mounting box, a U-shaped tube that is in communication with the inner cavity of the storage tube is connected to the bottom surface of the storage tube, an electromagnetic valve is connected to the end of the U-shaped tube, a storage assembly for placing a plurality of sampling tubes is arranged on the mounting box, and a sealing assembly for sealing the sampling tubes is arranged on the mounting box. The application has the effect of reducing the difficulty of sample sub-packaging for workers.

Description

Technical Field

[0001] This invention relates to the field of sampling device technology, and in particular to a sampling device for quality testing of building engineering. Background Technology

[0002] In construction engineering, pile foundations are a crucial foundational element used to support buildings or other structures. Pile foundations are typically elongated structures driven vertically into the ground to transfer the building's load to deeper soil layers, ensuring sufficient stability and bearing capacity. Pile foundations are frequently used in situations with complex soil conditions, heavy loads, or significant ground settlement. During the construction of projects such as cast-in-place piles and diaphragm walls, it is often necessary to test the specific gravity of the slurry. Sometimes, depending on specific requirements, it is necessary to perform performance testing on the slurry at specific depths, measuring its specific gravity, viscosity, and sand content, etc., to confirm whether the slurry quality meets the standards and ensure that the project quality complies with specifications.

[0003] Chinese invention patent CN118408788B discloses a sampling device for quality testing of building pile foundations, including a support assembly, a sampling assembly, and a clamping assembly. The support assembly includes a C-shaped support frame, a moving assembly, a lifting frame, a first motor, a threaded rod, and a lifting plate. This sampling device for quality testing of building pile foundations, with the cooperation of the support assembly and clamping assembly, facilitates stable fixation of the equipment and ensures the stability of the sampling assembly's feed. Before sampling, the first piston is fitted with the opening of the sampling frame. At this time, the sampling chamber, the inlet pipe, and the outlet pipe are filled with liquid. The liquid level in the measuring chamber is read. The inlet pipe and the outlet pipe are closed by a switch valve and a first nut, respectively. When the sampling frame moves to the designated position, the switch valve is opened, and the telescopic rod drives the first piston to retract, allowing liquid to enter the measuring chamber. The final liquid level difference is read to determine if enough sample has been extracted from the sampling frame. The pressure regulating assembly further ensures the sampling speed.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: The device drives the lifting plate to move up and down via a threaded rod, which in turn drives the sampling frame to move downwards. After sampling, staff need to test various indicators such as the sample's specific gravity, viscosity, and sand content. In actual use, staff need to remove the sample and manually divide it into multiple portions, sequentially filling them into multiple sample tubes. The various indicators are then tested sequentially through these multiple sample tubes. This process is complex and prone to sample loss during the dispensing process, resulting in a poor user experience. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a sampling device for quality inspection of building engineering projects.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a sampling device for quality testing of building engineering, comprising a support frame, a lifting frame mounted on the upper surface of the support frame, casters mounted on the bottom of the support frame, a drive motor mounted on the upper surface of the lifting frame, and a threaded rod connected to the end of the output shaft of the drive motor. A sliding block is slidably arranged inside the lifting frame, and the threaded rod passes through the sliding block and is threadedly connected. An installation box is fixed on the side wall of the sliding block, and a door is provided on the side wall of the installation box. A storage tube is installed on the bottom surface of the installation box, and a U-shaped tube communicating with the inner cavity of the storage tube is connected to the bottom surface of the storage tube. A solenoid valve is connected to the end of the U-shaped tube. A storage component for placing multiple sampling tubes is provided on the installation box, and a sealing component for sealing the sampling tubes is provided on the installation box.

[0007] By adopting the above technical solution, when workers need to test the quality of the mud in the pile pit, they need to push the installation box to move it directly above the pile pit and place multiple sampling tubes on multiple shelves in advance. Then, workers need to activate the locking device on the casters to stabilize them. Next, workers need to turn on the drive motor, causing the output shaft to rotate, which in turn causes the threaded rod to rotate, thus moving the sliding block and installation box downwards under the action of the threaded rod. Further, after the U-shaped tube has moved to the appropriate position, workers need to open the solenoid valve to allow the mud to enter the storage tube through the U-shaped tube. After sampling is completed, workers need to close the solenoid valve and turn on the water pump to move the mud through the outlet pipe to the sampling tube below the outlet pipe. Finally, workers need to turn on the rotation motor to drive the rotating frame to adjust the position of the sampling tube, thereby reducing the difficulty for workers in distributing the mud in the storage tube. Subsequently, staff only need to open the sealing component to seal the sampling tube, thereby reducing the probability of mud spilling out of the sampling tube during the staff's up-and-down movement of the sampling tube.

[0008] Furthermore, the storage component includes a water inlet pipe installed on the bottom wall of the mounting box, a bearing installed on the water inlet pipe, a rotating frame fixed on the side wall of the bearing, a plurality of shelves arranged in a circumferential array on the side wall of the rotating frame, and a sampling device for extracting mud on the mounting box, wherein the bottom of the water inlet pipe extends into a U-shaped pipe.

[0009] Furthermore, the sampling device includes a water pump fixed on the top wall of the mounting box, a water outlet pipe connected to the water pump outlet, a rotating motor fixed on the bottom wall of the mounting box, a drive gear connected to the end of the output shaft of the rotating motor, and an annular rack fixed on the bottom surface of the rotating frame. The water inlet pipe is connected to the water pump inlet, and the drive gear meshes with the annular rack.

[0010] By adopting the above technical solution, when workers need to test the quality of the mud in the pile pit, they need to move the installation box directly above the pile pit and place multiple sampling tubes sequentially on multiple shelves. Then, the workers need to turn on the drive motor, causing the sliding block and installation box to move downwards under the action of the threaded rod. Once the U-shaped tube has moved to the appropriate position, the workers need to open the solenoid valve, allowing the mud to enter the shelf through the U-shaped tube. After sampling is completed, the workers need to close the solenoid valve and turn on the water pump, allowing the inlet pipe to extract the mud from the shelf, which then moves through the outlet pipe to the sampling tube below the outlet pipe. After a single sampling tube has finished sampling, the workers need to turn on the rotary motor, causing the output shaft to rotate, which in turn rotates the drive gear. This causes the rotating frame to rotate under the action of the drive gear and the ring rack, thus causing multiple sampling tubes to rotate synchronously. When the next sampling tube moves directly below the water outlet pipe, the staff only needs to turn off the rotating motor and turn the water pump back on to fill another sampling tube, thus reducing the difficulty for the staff to take samples from multiple sampling tubes.

[0011] Furthermore, the upper surface of the mounting box is provided with a receiving groove, and the sealing assembly includes a storage box fixed in the receiving groove, a plurality of sealing plugs evenly distributed in the storage box, two limiting devices arranged sequentially in the storage box for limiting the sealing plugs, and a driving device arranged on the storage box for driving the sealing plugs to move, and the bottom of the storage box is open.

[0012] Furthermore, two limiting grooves are provided on the inner wall of the mounting box. The limiting device includes a limiting rod slidably disposed in the limiting groove, a first magnet block with one end fixed to the side wall of the limiting rod, a second magnet block fixed to the inner wall of the limiting groove, and a blocking block slidably disposed on the inner wall of the limiting groove. The first magnet block and the second magnet block repel each other, and the blocking block and the limiting rod are fixed to each other.

[0013] By adopting the above technical solution, when the limiting rod is not subjected to external force, due to the mutual repulsion between the first and second magnets, the limiting rod is always subjected to the repulsive force of the second magnet, thus ensuring that one end of the limiting rod remains outside the limiting groove. At this time, the two limiting rods cooperate with each other and block the two lowest sealing plugs, thereby ensuring that all sealing plugs are in a stable state.

[0014] Furthermore, inclined surfaces are provided on the edges where the sidewall of the limiting rod away from the first magnet block intersects with its upper surface and bottom surface.

[0015] By adopting the above technical solution, when the worker presses down on the sealing plug, the sealing plug presses against the inclined surface above the limiting rod, causing the limiting rod to move completely into the limiting groove under the action of the inclined surface. This allows the sealing plug to then move downwards past the limiting rod. Similarly, when the worker needs to replenish the sealing plug in the storage box, the worker inserts the sealing plug from the bottom of the storage box, causing the sealing plug to press against the inclined surface below the limiting rod. This allows the limiting rod to move completely into the limiting groove under the action of the inclined surface, causing the sealing plug to move upwards past the limiting rod. The sealing plug that has passed the limiting rod remains stable under the action of the resetting limiting rod, thus reducing the difficulty for the worker to replenish the sealing plug.

[0016] Furthermore, the upper surface of the storage box is provided with a drive groove, and the inner wall of the drive groove is provided with a connecting groove that communicates with the inner cavity of the storage box. The drive device includes a drive plate that is slidably disposed in the drive groove. The drive plate has a rotating groove on its side wall near the connecting groove. The drive device also includes a rotating plate that is rotatably disposed in the rotating groove, a first strong magnetic block embedded on the upper surface of the rotating plate, and a second strong magnetic block embedded on the top wall of the rotating groove. The first strong magnetic block and the second strong magnetic block attract each other.

[0017] Furthermore, the inner bottom wall of the connecting groove is flush with the upper surface of the lowest sealing plug.

[0018] By adopting the above technical solution, when the drive plate is not subjected to external force, the rotating plate remains horizontal under the action of the second strong magnetic block due to the mutual attraction between the first and second strong magnetic blocks, meaning the rotating plate continuously presses against the inner top wall of the rotating groove. Subsequently, when the operator needs to seal the sampling tube, they need to turn on the rotating motor, move the sampling tube to be sealed to directly below the storage box, and press down on the drive plate. This causes the rotating plate to move downwards with the drive plate, thereby causing the two sealing plugs below the rotating plate to move downwards under the action of the rotating plate. The bottom sealing plug then moves downwards and connects with the sampling tube below, thus sealing the sampling tube. At this point, the sealing plug that was originally in contact with the rotating plate moves to the bottom of the storage box, replacing the used sealing plug.

[0019] Furthermore, a receiving hole is provided on the inner bottom wall of the drive groove, and a support spring is fixed on the bottom surface of the drive plate.

[0020] Furthermore, the upper surface of the drive plate is provided with a handle to reduce the difficulty for workers to slide the drive plate.

[0021] By adopting the above technical solution, when the drive plate is not subjected to external force, it remains stable under the continuous force of the support spring, and its upper surface remains flush with the upper surface of the storage box. When the operator needs to move the drive plate downward, they only need to press the upper end of the handle to move the drive plate downward with the handle. During this process, the support spring is continuously compressed and stores energy. Furthermore, when the lowermost sealing plug moves downward and connects with the sampling tube below, the operator only needs to release the handle to allow the drive plate to automatically reset under the action of the support spring. During this process, the rotating plate moves upward with the drive plate and automatically folds downward when it touches the sealing plug, thus allowing the drive plate and rotating plate to automatically return to their original positions.

[0022] In summary, the present invention has the following beneficial effects: 1. In this application, when workers need to test the quality of the mud in the pile pit, they need to push the installation box to move it directly above the pile pit and place multiple sampling tubes sequentially on multiple shelves. Then, workers need to activate the locking device on the casters to stabilize them. Next, workers need to turn on the drive motor, causing its output shaft to rotate, which in turn causes the threaded rod to rotate, resulting in the sliding block and installation box moving downwards under the action of the threaded rod. Further, after the U-shaped tube has moved to the appropriate position, workers need to open the solenoid valve to allow the mud to enter the storage tube through the U-shaped tube. After sampling is completed, workers need to close the solenoid valve and turn on the water pump to move the mud through the outlet pipe to the sampling tube below the outlet pipe. Finally, workers need to turn on the rotation motor to drive the rotating frame to adjust the position of the sampling tube, thus reducing the difficulty for workers in distributing the mud in the storage tube. Subsequently, staff only need to open the sealing component to seal the sampling tube, thereby reducing the probability of mud spilling out of the sampling tube during the staff's up and down movement of the sampling tube. 2. In this application, when workers need to test the quality of the mud in the pile pit, they need to move the installation box directly above the pile pit and place multiple sampling tubes sequentially on multiple shelves. Then, the workers need to turn on the drive motor, causing the sliding block and installation box to move downwards under the action of the threaded rod. After the U-shaped tube moves to the appropriate position, the workers need to open the solenoid valve, allowing the mud to enter the shelf through the U-shaped tube. After sampling is completed, the workers need to close the solenoid valve and turn on the water pump, allowing the inlet pipe to extract the mud from the shelf under the action of the pump, thus moving the mud through the outlet pipe to the sampling tube below the outlet pipe. After a single sampling tube has completed sampling, the workers need to turn on the rotating motor, causing the output shaft of the rotating motor to rotate, which in turn rotates the drive gear, causing the rotating frame to rotate under the action of the drive gear and the ring rack, thereby causing multiple sampling tubes to rotate synchronously. When the next sampling tube moves directly below the water outlet pipe, the staff only needs to turn off the rotating motor and turn the water pump back on to fill another sampling tube, thus reducing the difficulty for the staff to take samples from multiple sampling tubes. 3. In this application, when the worker presses down on the sealing plug, the sealing plug presses against the inclined surface above the limiting rod, causing the limiting rod to move completely into the limiting groove under the action of the inclined surface. This allows the sealing plug to pass over the limiting rod and move downwards. Similarly, when the worker needs to replenish the sealing plug in the storage box, the worker inserts the sealing plug from the bottom of the storage box, causing the sealing plug to press against the inclined surface below the limiting rod. This causes the limiting rod to move completely into the limiting groove under the action of the inclined surface, allowing the sealing plug to pass over the limiting rod and move upwards. The sealing plug that has passed over the limiting rod remains stable under the action of the reset limiting rod, thus reducing the difficulty for the worker to replenish the sealing plug. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the sliding block and its connection structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cabinet door and its connection structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the storage component and its connection structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the sampling device and its connection structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the enclosed component and its connection structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the limiting device and its connection structure according to an embodiment of the present invention; Figure 8This is a schematic diagram of the rotating groove and its connection structure according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the rotating plate and its connection structure according to an embodiment of the present invention.

[0024] In the diagram: 1. Support frame; 11. Lifting frame; 12. Casters; 2. Drive motor; 21. Threaded rod; 22. Sliding block; 23. Mounting box; 24. Box door; 25. Storage tube; 26. U-shaped tube; 27. Solenoid valve; 3. Storage component; 31. Water inlet pipe; 32. Bearing; 33. Rotating frame; 34. Storage shelf; 4. Sampling device; 41. Water pump; 42. Water outlet pipe; 43. Rotating motor; 44. Drive gear; 45. Ring rack ; 46. Receiving slot; 5. Enclosing component; 51. Storage box; 52. Sealing plug; 53. Limiting slot; 6. Limiting device; 61. Limiting rod; 62. First magnet block; 63. Second magnet block; 64. Barrier block; 65. Driving slot; 66. Connecting slot; 7. Driving device; 71. Driving plate; 711. Rotating slot; 72. Rotating plate; 73. First strong magnet block; 74. Second strong magnet block; 8. Receiving hole; 81. Supporting spring; 9. Handle. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-9As shown in the embodiment of this application, a sampling device for quality testing of building engineering is disclosed, including a support frame 1, a lifting frame 11, casters 12, a drive motor 2, a threaded rod 21, a sliding block 22, a mounting box 23, a box door 24, a storage tube 25, a U-shaped tube 26, a solenoid valve 27, a storage component 3, a sealing component 5, a support spring 81, and a handle 9. The lifting frame 11 is installed on the upper surface of the support frame 1, and the casters 12 are installed on the bottom of the support frame 1. The drive motor 2 is installed on the upper surface of the lifting frame 11, and the output shaft of the drive motor 2 extends downward into the inner cavity of the lifting frame 11. The threaded rod 21 is connected to the end of the output shaft of the drive motor 2. The sliding block 22 is a block structure, which is slidably disposed in the lifting frame 11, and the threaded rod 21 passes through the sliding block 22 and is threadedly connected. The mounting box 23 is a hollow cuboid structure, which is fixed to the side wall of the sliding block 22, and the box door 24 is disposed on the side wall of the mounting box 23. The storage tube 25 is a round tube structure with a sealed bottom, and the U-shaped tube 26 is a U-shaped structure. The bottom surface of the U-shaped tube 26 is connected to the bottom surface of the storage tube 25, and the inner cavity of the U-shaped tube 26 is interconnected with the inner cavity of the storage tube 25. The solenoid valve 27 is connected to the end of the U-shaped tube 26 and is used to seal the U-shaped tube 26.

[0027] Storage component 3 is mounted on mounting box 23 and is used to hold multiple sampling tubes. Storage component 3 includes water inlet pipe 31, bearing 32, rotating frame 33, shelf 34, and sampling device 4. Water inlet pipe 31 is a cylindrical structure and is mounted on the inner bottom wall of mounting box 23, with its bottom extending into U-shaped tube 26. Bearing 32 is mounted on water inlet pipe 31, and rotating frame 33 is fixed to the side wall of bearing 32. Multiple shelf 34s are arranged in a circumferential array on the side wall of rotating frame 33 for holding sampling tubes.

[0028] The sampling device 4 is mounted on the mounting box 23 and is used to extract mud. The sampling device 4 includes a water pump 41, an outlet pipe 42, a rotating motor 43, a drive gear 44, and a ring rack 45. The water pump 41 is fixed to the inner top wall of the mounting box 23, and the inlet pipe 31 is connected to the inlet of the water pump 41. The outlet pipe 42 is a circular pipe structure and is connected to the outlet of the water pump 41. The rotating motor 43 is fixed to the inner bottom wall of the mounting box 23, and the drive gear 44 is connected to the end of the output shaft of the rotating motor 43. The ring rack 45 is fixed to the bottom surface of the rotating frame 33, and the drive gear 44 and the ring rack 45 mesh with each other.

[0029] When workers need to test the quality of the mud in the pile pit, they need to move the installation box 23 directly above the pile pit and place multiple sampling tubes sequentially on multiple shelves 34. Then, the workers need to turn on the drive motor 2, causing the sliding block 22 and the installation box 23 to move downwards under the action of the threaded rod 21. Once the U-shaped tube 26 has moved to the appropriate position, the workers need to open the solenoid valve 27, allowing the mud to enter the storage tube 25 through the U-shaped tube 26. After sampling is completed, the workers need to close the solenoid valve 27 and turn on the water pump 41, allowing the water inlet pipe 31 to draw mud from the storage tube 25 under the action of the water pump 41, thus moving the mud through the outlet pipe 42 to the sampling tube below the outlet pipe 42. After a single sampling tube has finished sampling, the operator needs to turn on the rotating motor 43, causing its output shaft to rotate. This, in turn, rotates the drive gear 44, which in turn rotates the rotating frame 33 under the action of the drive gear 44 and the ring rack 45, thus causing multiple sampling tubes to rotate synchronously. When the next sampling tube moves directly below the outlet pipe 42, the operator only needs to turn off the rotating motor 43 and restart the water pump 41 to fill another sampling tube, thereby reducing the difficulty for the operator to sample from multiple tubes.

[0030] The upper surface of the mounting box 23 has a receiving groove 46. A sealing component 5 is mounted on the mounting box 23 for sealing the sampling tube. The sealing component 5 includes a storage box 51, sealing plugs 52, a limiting device 6, and a driving device 7. The storage box 51 is a rectangular structure with an open bottom and is fixed within the receiving groove 46. Multiple sealing plugs 52 are evenly spaced within the storage box 51 for sealing the sampling tube.

[0031] The inner wall of the mounting box 23 has two limiting grooves 53. Two limiting devices 6 are provided and sequentially arranged in the storage box 51 to limit the sealing plug 52. The limiting device 6 includes a limiting rod 61, a first magnet block 62, a second magnet block 63, and a blocking block 64. The limiting rod 61 is a rectangular rod structure and is slidably disposed in the limiting groove 53. The first magnet block 62 is a circular block structure, and one end of the first magnet block 62 is fixed to the side wall of the limiting rod 61. The second magnet block 63 is a circular block structure and is fixed to the inner wall of the limiting groove 53, and the first magnet block 62 and the second magnet block 63 repel each other. The blocking block 64 is a block structure and is slidably disposed on the inner wall of the limiting groove 53, and the blocking block 64 is fixed to the limiting rod 61.

[0032] When the limiting rod 61 is not subjected to external force, due to the mutual repulsion between the first magnet 62 and the second magnet 63, the limiting rod 61 is always subjected to the repulsive force of the second magnet 63, thus ensuring that one end of the limiting rod 61 is always outside the limiting groove 53. At this time, the two limiting rods 61 cooperate with each other and block the two lowest sealing plugs 52, thereby ensuring that all sealing plugs 52 are in a stable state.

[0033] To reduce the difficulty for staff to replenish the sealing plug 52, inclined surfaces are provided on the edges of the limiting rod 61 where it intersects with the side wall away from the first magnet block 62, its upper surface, and its bottom surface. When the staff presses down on the sealing plug 52, the sealing plug 52 presses against the inclined surface above the limiting rod 61, causing the limiting rod 61 to move completely into the limiting groove 53 under the action of the inclined surface, and then the sealing plug 52 moves downward past the limiting rod 61. Similarly, when the staff needs to replenish the sealing plug 52 in the storage box 51, the staff needs to insert the sealing plug 52 from the bottom of the storage box 51, which will cause the sealing plug 52 to press against the inclined surface below the limiting rod 61, causing the limiting rod 61 to move completely into the limiting groove 53 under the action of the inclined surface, and then the sealing plug 52 moves upward past the limiting rod 61. The sealing plug 52 that has passed the limiting rod 61 remains stable under the action of the reset limiting rod 61, thus reducing the difficulty for the staff to replenish the sealing plug 52.

[0034] The upper surface of the storage box 51 has a drive groove 65, and the inner wall of the drive groove 65 has a connecting groove 66 that communicates with the inner cavity of the storage box 51. A drive device 7 is mounted on the storage box 51 and is used to drive the sealing plug 52 to move. The drive device 7 includes a drive plate 71, a rotating plate 72, a first strong magnet 73, and a second strong magnet 74. The drive plate 71 is a rectangular rod-plate structure and is slidably disposed within the drive groove 65. A rotating groove 711 is formed on the side wall of the drive plate 71 near the connecting groove 66. The rotating plate 72 is a rectangular plate structure and is rotatably disposed within the rotating groove 711. The first strong magnet 73 is a rectangular block structure and is embedded in the upper surface of the rotating plate 72. The second strong magnetic block 74 is a rectangular block structure. The second strong magnetic block 74 is embedded in the inner top wall of the rotating groove 711. The first strong magnetic block 73 and the second strong magnetic block 74 attract each other, and the inner bottom wall of the connecting groove 66 is flush with the upper surface of the bottom sealing plug 52.

[0035] When the drive plate 71 is not subjected to external force, the rotating plate 72 remains horizontal under the action of the second strong magnetic block 74 due to the mutual attraction between the first strong magnetic block 73 and the second strong magnetic block 74. That is, the rotating plate 72 continuously presses against the inner top wall of the rotating groove 711. Subsequently, when the staff needs to seal the sampling tube, the staff needs to turn on the rotating motor 43, move the sampling tube to be sealed to directly below the storage box 51, and press down on the drive plate 71. This will cause the rotating plate 72 to move downward with the drive plate 71, thereby causing the two sealing plugs 52 below the rotating plate 72 to move downward under the action of the rotating plate 72. This will cause the bottom sealing plug 52 to move downward and connect with the sampling tube below, thereby sealing the sampling tube. At this time, the sealing plug 52 that was originally abutting against the rotating plate 72 moves to the bottom of the storage box 51 to replace the used sealing plug 52.

[0036] A receiving hole 8 is provided on the inner bottom wall of the drive groove 65, and one end of the support spring 81 is fixed to the bottom surface of the drive plate 71. A handle 9 is provided on the upper surface of the drive plate 71 to reduce the difficulty for the operator to slide the drive plate 71.

[0037] When the drive plate 71 is not subjected to external force, it remains stable under the continuous force of the support spring 81, keeping its upper surface flush with the upper surface of the storage box 51. When the operator needs to move the drive plate 71 downwards, they simply press the upper end of the handle 9 to move it downwards. During this process, the support spring 81 continuously compresses and stores energy. Furthermore, once the lowermost sealing plug 52 moves downwards and connects with the sampling tube below, the operator simply releases the handle 9, allowing the drive plate 71 to automatically reset under the action of the support spring 81. During this process, the rotating plate 72 moves upwards along with the drive plate 71 and automatically folds downwards upon touching the sealing plug 52, thus automatically returning the drive plate 71 and rotating plate 72 to their original positions.

[0038] The operating principle of the sampling device 4 for construction engineering quality testing in this embodiment is as follows: When the staff needs to test the quality of the mud in the pile pit, the staff needs to push the installation box 23 to move the installation box 23 directly above the pile pit, and place multiple sampling tubes on multiple shelves 34 in sequence. Then, the staff needs to open the locking device on the universal wheel 12 to keep the universal wheel 12 stable. Then, the staff needs to turn on the drive motor 2, which will cause the output shaft of the drive motor 2 to rotate, thereby causing the threaded rod 21 to rotate with the output shaft of the drive motor 2, and then causing the sliding block 22 and the installation box 23 to move downward under the action of the threaded rod 21. Further, after the U-shaped tube 26 moves downward to the appropriate position, the staff needs to open the solenoid valve 27, which will allow the mud to enter the shelf tube 25 through the U-shaped tube 26. After sampling is completed, the staff needs to close the solenoid valve 27 and turn on the water pump 41, which will allow the mud to move through the water outlet pipe 42 to the sampling tube below the water outlet pipe 42. Furthermore, the staff needs to turn on the rotating motor 43 to drive the rotating frame 33 to rotate, thereby adjusting the position of the sampling tube and reducing the difficulty for the staff to remove the mud from the material tube 25. Subsequently, the staff only needs to open the sealing component 5 to seal the sampling tube, thereby reducing the probability of mud spilling out of the sampling tube during the staff's up and down movement of the sampling tube.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sampling device for quality inspection of building engineering, comprising a support frame (1), a lifting frame (11) mounted on the upper surface of the support frame (1), casters (12) mounted on the bottom of the support frame (1), a drive motor (2) mounted on the upper surface of the lifting frame (11), and a threaded rod (21) connected to the end of the output shaft of the drive motor (2), characterized in that: A sliding block (22) is slidably arranged inside the lifting frame (11). The threaded rod (21) passes through the sliding block (22) and is threadedly connected. An installation box (23) is fixed on the side wall of the sliding block (22). A box door (24) is provided on the side wall of the installation box (23). A storage tube (25) is installed on the bottom surface of the installation box (23). A U-shaped tube (26) communicating with the inner cavity of the storage tube (25) is connected to the bottom surface of the storage tube (25). A solenoid valve (27) is connected to the end of the U-shaped tube (26). A storage component (3) for placing multiple sampling tubes is provided on the installation box (23). A sealing component (5) for sealing the sampling tubes is provided on the installation box (23).

2. The sampling device for quality inspection of building engineering according to claim 1, characterized in that: The storage component (3) includes a water inlet pipe (31) installed on the bottom wall of the mounting box (23), a bearing (32) installed on the water inlet pipe (31), a rotating frame (33) fixed on the side wall of the bearing (32), a plurality of shelves (34) arranged in a circumferential array on the side wall of the rotating frame (33), and a sampling device (4) set on the mounting box (23) for extracting mud. The bottom of the water inlet pipe (31) extends into the U-shaped pipe (26).

3. A sampling device for quality inspection of building engineering according to claim 2, characterized in that: The sampling device (4) includes a water pump (41) fixed on the top wall of the mounting box (23), a water outlet pipe (42) connected to the outlet of the water pump (41), a rotating motor (43) fixed on the bottom wall of the mounting box (23), a drive gear (44) connected to the end of the output shaft of the rotating motor (43), and an annular rack (45) fixed on the bottom surface of the rotating frame (33). The water inlet pipe (31) is connected to the water inlet of the water pump (41), and the drive gear (44) meshes with the annular rack (45).

4. A sampling device for quality inspection of building engineering according to claim 3, characterized in that: The upper surface of the mounting box (23) is provided with a receiving groove (46). The sealing component (5) includes a storage box (51) fixed in the receiving groove (46), a plurality of sealing plugs (52) evenly distributed in the storage box (51), two limiting devices (6) arranged in sequence in the storage box (51) to limit the sealing plugs (52), and a driving device (7) arranged on the storage box (51) to drive the sealing plugs (52) to move. The bottom of the storage box (51) is open.

5. A sampling device for quality inspection of building engineering according to claim 4, characterized in that: The inner wall of the mounting box (23) has two limiting grooves (53). The limiting device (6) includes a limiting rod (61) slidably disposed in the limiting groove (53), a first magnet block (62) with one end fixed to the side wall of the limiting rod (61), a second magnet block (63) fixed to the inner wall of the limiting groove (53), and a blocking block (64) slidably disposed on the inner wall of the limiting groove (53). The first magnet block (62) and the second magnet block (63) repel each other, and the blocking block (64) is fixed to the limiting rod (61).

6. A sampling device for quality inspection of building engineering according to claim 5, characterized in that: Inclined surfaces are provided on the edges where the sidewall of the limiting rod (61) away from the first magnet block (62) intersects with its upper surface and bottom surface.

7. A sampling device for quality testing of building engineering according to claim 6, characterized in that: The storage box (51) has a drive groove (65) on its upper surface. The inner wall of the drive groove (65) has a connecting groove (66) that communicates with the inner cavity of the storage box (51). The drive device (7) includes a drive plate (71) that is slidably disposed in the drive groove (65). The drive plate (71) has a rotating groove (711) on its side wall near the connecting groove (66). The drive device (7) also includes a rotating plate (72) that is rotatably disposed in the rotating groove (711), a first strong magnetic block (73) embedded in the upper surface of the rotating plate (72), and a second strong magnetic block (74) embedded in the top wall of the rotating groove (711). The first strong magnetic block (73) and the second strong magnetic block (74) attract each other.

8. A sampling device for quality inspection of building engineering according to claim 7, characterized in that: The inner bottom wall of the connecting groove (66) is flush with the upper surface of the bottommost sealing plug (52).

9. A sampling device for quality testing of building engineering according to claim 7, characterized in that: The inner bottom wall of the drive groove (65) is provided with a receiving hole (8), and a support spring (81) is fixed on the bottom surface of the drive plate (71).

10. A sampling device for quality inspection of building engineering according to claim 7, characterized in that: The upper surface of the drive plate (71) is provided with a handle (9) to reduce the difficulty for the operator to slide the drive plate (71).

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