A highway construction detection sampling device

Abstract

The utility model discloses a highway construction detects sampling equipment belongs to road detection technical field, including setting on the sampling mechanism of chassis, and the at least one side of sampling mechanism is provided with sampling anti -displacement device on this chassis, and this sampling anti -displacement device is composed of U type fixed frame, solid counterweight pier, and U type fixed frame is fixedly connected with chassis, and U type fixed frame is provided with multiple solid counterweight pier along its length direction interval on and is spaced, the sampling anti -displacement device of this sampling equipment is through the descending multiple solid counterweight pier and directly with the highway ground contact, and solid counterweight pier bottom end places on the ground after, makes the solid counterweight block that places well after descending through U type fixed frame and sampling equipment between formation one whole, like this can increase the placing weight of sampling equipment front end, to reach the purpose of effectively resisting the reaction force that produces when drilling sampling through the placing weight of increasing.

Description

Technical Field

[0001] This utility model belongs to the field of road inspection technology and provides a highway construction inspection and sampling device. Background Technology

[0002] With the continuous development of highway construction, the importance of highway construction inspection is becoming increasingly prominent. During highway construction, in order to ensure the quality and performance of the highway, regular inspections and sampling analyses are necessary. Highway construction inspection sampling equipment, as an important testing tool, directly affects the reliability of the test results due to its performance and accuracy.

[0003] Currently, while highway construction testing sampling equipment on the market can be placed on the highway surface using multiple mounting feet, some problems exist in actual use. When sampling the highway surface using the sampling drill, the high-speed rotation of the drill generates a significant reaction force. Existing mounting feet cannot completely resist this reaction force, easily causing displacement of the sampling drill during sampling. This displacement not only affects the accuracy and representativeness of the sampling but may also pose safety hazards to the equipment itself and operators.

[0004] Therefore, in order to solve the problems existing in the use of existing highway construction testing and sampling equipment and improve the accuracy and stability of sampling, a new type of highway construction testing and sampling equipment is needed that can effectively resist the reaction force generated by the high-speed rotation of the sampling drill barrel and ensure the smooth progress of the sampling process. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a highway construction testing and sampling device to solve the problem mentioned in the background art that when sampling is performed on the highway ground through a sampling drill, the high-speed rotation of the sampling drill will generate a large reaction force, and the existing foot cups cannot completely resist this reaction force, which easily causes displacement of the sampling drill during sampling.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a highway construction testing and sampling device, including a sampling mechanism mounted on a base frame. A sampling anti-displacement device is installed on the base frame and at least one side of the sampling mechanism. The anti-displacement device consists of a U-shaped fixing frame and solid counterweights. The U-shaped fixing frame is fixedly connected to the base frame, and multiple solid counterweights are spaced apart along the length of the U-shaped fixing frame. When the sampling drill cylinder begins high-speed rotation for sampling, a large reaction force is generated. The combined design of the U-shaped fixing frame and the solid counterweights lowered to the ground effectively resists this reaction force, preventing displacement of the sampling drill cylinder. Thus, through the combination of the U-shaped fixing frame and the solid counterweights, the center of gravity of the equipment is lowered, thereby improving overall stability and reducing the possibility of displacement. Its structure is simple, convenient for operation and maintenance, reduces the possibility of equipment failure, and improves work efficiency.

[0008] Optionally, the solid counterweight can be suspended on a U-shaped fixed frame via a pull-out connecting rod. The lower end of the pull-out connecting rod, which connects to the solid counterweight, has an external thread, while the upper end, facing away from the solid counterweight, is a smooth rod. The U-shaped fixed frame has a locking screw hole that matches the external thread, with the inner diameter of the locking screw hole larger than the outer diameter of the smooth rod. A pull-out rotating handle is located at the upper end of the pull-out connecting rod, extending above the U-shaped fixed frame. The operator can adjust the raising / lowering of the solid counterweight by pulling the rotating handle, thereby ensuring the equipment remains stable during sampling operations.

[0009] Optionally, the external thread and locking screw hole mating structure can be replaced by a pin. This allows the pin to be directly inserted into a pre-drilled hole on the side of the U-shaped fixing frame, forming a secure connection. When adjusting or removing the solid counterweight, the operator can simply pull out the pin for quick release. The pin design can employ different locking mechanisms as needed, such as spring-loaded locking or self-locking mechanisms, to ensure the stability and safety of the pin during operation.

[0010] Optionally, the U-shaped bracket is mounted on the base frame via a connecting plate, serving both a fixing and supporting function. The connecting plate design enhances the stability of the U-shaped bracket, enabling it to better withstand the forces generated during sampling.

[0011] Optionally, the sampling mechanism consists of a lifting assembly, a sampling drill cylinder, and a sampling motor. The sampling motor is mounted on the lifting assembly, and its output shaft is connected to the sampling drill cylinder. The lifting assembly includes lifting guide columns, a top seat, a lifting screw, and a lifting base. A pair of lifting guide columns are mounted on the base frame, and the top of each pair is connected to the top seat. Guide cylinders that slide with the two lifting guide columns are located at both ends of the lifting base, ensuring smooth and unobstructed lifting movement. The top seat has an internal threaded hole adapted to the lifting screw. A lifting operation handwheel is located at the upper end of the lifting screw, and the lower end of the lifting screw is connected to the lifting base via an anti-detachment retaining ring to ensure connection stability and prevent unnecessary relative rotation or displacement. The sampling motor is mounted on the lifting base. Thus, by rotating the lifting operation handwheel, the lifting screw rotates clockwise / counterclockwise, utilizing the thread action within the internal threaded hole to achieve up-and-down movement. With this design, the sampling equipment effectively improves the stability and safety of the sampling process, meeting the requirements for highway construction testing.

[0012] Optionally, the base frame can be configured as a U-shaped frame, a well-shaped frame, an H-shaped frame, or a square frame, with casters, foot mounting holes, and a moving handle. This connecting frame design makes the base frame more robust, effectively withstanding the forces during operation and improving the overall stability of the equipment. The moving handle design allows for easy pushing of the equipment, reducing physical exertion during movement and improving work efficiency.

[0013] Optionally, the lifting platform includes a base plate connected by vertical plates and stiffening plates, on which the sampling motor is mounted. The base plate provides a robust platform, allowing the sampling motor to be securely fixed to the lifting platform; that is, the base plate is connected to the lifting platform via vertical plates and stiffening plates, forming a triangular reinforced structure. This structure effectively disperses pressure and impact forces, enhancing the strength and stability of the base plate.

[0014] Optionally, a battery box is mounted on the base frame via a support plate, and the battery box is positioned on the opposite side from the sampling mechanism and the sampling anti-displacement device. This design allows the equipment to operate independently without an external power source, improving its flexibility and applicability. Furthermore, placing the battery box on the opposite side optimizes the equipment's center of gravity distribution, preventing tilting or instability during operation due to improper battery box placement.

[0015] The beneficial effects of this utility model are as follows: By adding a sampling anti-displacement device to one side of the base frame (such as the front end), the highway construction testing and sampling equipment of this utility model significantly improves the stability and safety of the equipment during the sampling process. The advantages of this equipment are analyzed in detail below.

[0016] 1. Function of the Sampling Displacement Prevention Device: During the operation of the sampling drill, when the sampling drill at the front of the base frame descends and contacts the road surface, it begins to rotate at high speed to drill into the ground. During this process, the reaction force of the drill may cause displacement in front of the equipment. This sampling displacement prevention device addresses this by lowering and placing multiple solid counterweights that directly contact the road surface, forming a stable foundation. After the bottom of the solid counterweight is placed on the ground, the pull-out rotating handle at the top of the pull-out linkage is blocked by the top outer wall of the U-shaped fixing frame, ensuring that the solid counterweight and the sampling equipment form a unified whole. This unified structure increases the weight of the front of the sampling equipment, effectively resisting the reaction force generated during drilling.

[0017] 2. Improved sampling stability: By adding extra weight, the stability of the front end of the device is significantly improved, effectively resisting the displacement caused by the reaction force during the sampling process, and ensuring that the sampling position is always kept in the preset position.

[0018] 3. Improved sampling accuracy: The equipment remains stable during the sampling process, ensuring the accuracy of the sampling location, reducing errors, and improving the reliability of the test data.

[0019] 4. Improved sampling safety: By preventing accidental movement of equipment, the safety of operators is ensured, while also reducing potential damage to the surrounding environment and other equipment.

[0020] 5. Simplified operation: The structural design allows operators to easily place and adjust the equipment, reducing the skill requirements for operation and improving work efficiency.

[0021] 6. High adaptability: This equipment can be widely used in different highway construction sites, adapt to various ground conditions, and meet diverse construction needs.

[0022] In summary, by adding a sampling anti-displacement device to the base frame (front end), this sampling equipment effectively improves the stability and safety of the equipment during the sampling process, resists the reaction force during drilling, ensures the accuracy of the sampling position, protects the safety of operators, and reduces the impact on the surrounding environment.

[0023] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a three-dimensional structural diagram of the highway construction testing and sampling equipment of this utility model.

[0026] Figure 2 for Figure 1 An enlarged schematic diagram of the lifting and sampling mechanism in the middle;

[0027] Figure 3 for Figure 1 A schematic diagram of the front structure;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure on the right side;

[0029] Figure 5 for Figure 1 A three-dimensional structural diagram of the sampling anti-displacement device in the middle;

[0030] Figure 6 for Figure 5 A schematic diagram of the front structure;

[0031] Figure 7 for Figure 5 Another example of a frontal structural diagram;

[0032] Reference numerals: 1-Moving wheel and foot cup mounting hole; 2-Base frame; 3-Lifting guide column; 4-Frame plate; 5-Battery box; 6-Moving handrail; 7-Top seat; 8-Internal threaded hole; 9-Lifting screw; 10-Lifting operation handwheel; 11-Lifting assembly; 12-Sampling mechanism; 13-Sampling anti-displacement device; 14-Guide cylinder; 15-Lifting seat; 16-Anti-detachment fixing ring; 17-Vertical plate and stiffening plate; 18-Support plate; 19-Sampling drill cylinder; 20-Sampling motor; 21-U-shaped fixing frame; 22-Pull-out rotating handle; 23-Locking screw hole; 24-Pull-out connecting rod; 25-External thread; 26-Solid counterweight block; 27-Connecting plate; 28-Pin. Detailed Implementation

[0033] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0034] like Figure 1-6As shown, the sampling equipment for highway construction testing mentioned in this utility model includes a sampling mechanism 12 mounted on a base frame 2. The base frame 2 serves as the basic structure of the equipment, and all components are installed on it to provide stable support. The sampling mechanism 12 consists of a lifting assembly 11, a sampling drill cylinder 19, and a sampling motor 20, responsible for the actual sampling operation. The sampling motor 20 is mounted on the lifting assembly 11 and drives the sampling drill cylinder 19 to rotate and sample. Its output shaft is connected to the sampling drill cylinder 19 to ensure effective power transmission. The lifting assembly 11 includes lifting guide columns 3, a top seat 7, a lifting screw 9, and a lifting base 15. A pair of lifting guide columns 3 are mounted on the base frame 2. Two lifting guide columns 3 are symmetrically arranged on the left and right, and a top seat 7 is connected to the top of a pair of lifting guide columns 3; the two ends of the lifting seat 15 are respectively provided with guide cylinders 14 that slide with the two lifting guide columns 3 to provide guidance for the lifting movement; the top seat 7 is provided with an internal threaded hole 8 that matches the lifting screw 9; the upper end of the lifting screw 9 is provided with a lifting operation handwheel 10, which can drive the lifting screw 9 to rotate clockwise / counterclockwise, and the clockwise / counterclockwise rotation of the lifting screw 9 can form up and down movement in the internal threaded hole 8 of the top seat 7 through the thread action; the lower end of the lifting screw 9 is connected to the lifting seat 15 through an anti-detachment fixing ring 16; the sampling motor 20 is set on the lifting seat 15. The lifting seat 15 has a T-shaped rotating hole at its center, with the opening of the T-shaped rotating hole facing upward. A T-shaped rotating block is welded to the bottom end of the lifting screw 9. The T-shaped rotating block is located inside the T-shaped rotating hole and can only rotate clockwise or counterclockwise within the T-shaped rotating hole. An anti-detachment fixing ring 16 is fixed at the center of the outer wall of the top of the lifting seat 15 and is sleeved on the outside of the bottom end of the lifting screw 9. In this way, rotating the lifting operation handwheel 10 drives the lifting screw 9 to rotate clockwise / counterclockwise. When the lifting screw 9 rotates, it moves up and down in the internal threaded hole 8 through the thread action. The guide cylinders 14 at both ends of the lifting seat 15 in the lifting assembly 11 connected to the bottom of the lifting screw 9 are sleeved on the outside of the lifting guide column 3 to provide guidance for the lifting movement. When the lifting screw 9 moves up and down, it drives the lifting seat 15 to move up and down along the lifting guide column 3. The T-shaped rotating hole inside the center of the lifting seat 15 cooperates with the T-shaped rotating block at the bottom of the lifting screw 9, so that the lifting screw 9 can drive the lifting seat 15 to move up and down while rotating. The T-shaped rotating block can only rotate clockwise and counterclockwise in the T-shaped rotating hole, which ensures the stability of the lifting movement and prevents other movements other than relative rotation between the lifting screw 9 and the lifting seat 15. The anti-detachment fixing ring 16 further ensures that the connection between the lifting screw 9 and the lifting seat 15 is firm and prevents the lifting screw 9 from accidentally detaching from the lifting base 15.

[0035] In this embodiment, a battery box 5 is installed on the base frame 2 via a frame plate 4. The battery box 5 contains an energy storage battery to provide power to electrical equipment such as the sampling motor 20, ensuring that the equipment can work normally without an external power source. The battery box 5 is arranged on the opposite side of the sampling mechanism 12 and the sampling anti-displacement device 13.

[0036] In this embodiment, the lifting platform 15 includes a base plate 18 connected by vertical plates and stiffening plates 17, and a sampling motor 20 is mounted on the base plate 18. When sampling is required, the sampling motor 20 is started, and its output shaft rotates, driving the sampling drill cylinder 19 to rotate at high speed. The sampling drill cylinder 19 is located above the center between the front ends of the base frame 2. When the lifting assembly 11 lowers the sampling motor 20 and the sampling drill cylinder 19 to the road surface, the high-speed rotating sampling drill cylinder 19 drills into the road surface to achieve sampling for road construction inspection. The base plate 18 is connected to the lifting platform 15 through a triangular reinforcing structure formed by the vertical plates and stiffening plates 17, which enhances the connection strength of the base plate 18, improves the stability of the sampling mechanism 12 during operation, and ensures that the sampling motor 20 can stably drive the sampling drill cylinder 19 to perform sampling operations.

[0037] To prevent displacement of the sampling drill bit during sampling of the road surface due to the large reaction force generated by its high-speed rotation, existing mounting feet are insufficient to completely resist this reaction force. A sampling anti-displacement device 13 is installed on the base frame 2, located on at least one side of the sampling mechanism 12. This anti-displacement device can be positioned at the front, front / rear, left / right sides of the base frame 2. In this example, it is installed at the front of the base frame 2. The sampling anti-displacement device 13 consists of a U-shaped fixing frame 21 and solid counterweights 26. The U-shaped fixing frame 21 is fixedly connected to the base frame 2, providing support and stability. Multiple solid counterweights 26 are spaced along the length of the U-shaped fixing frame 21. The weight of these counterweights increases the overall stability of the equipment and effectively resists the reaction force generated during sampling. Specifically, the solid counterweight 26 can be suspended on the U-shaped fixed frame 21 via a pull-out connecting rod 24. The pull-out connecting rod 24 and the solid counterweight 26 can be connected by screwing or welding to ensure a firm connection. The lower end of the pull-out connecting rod 24 connected to the solid counterweight 26 is provided with an external thread 25, and the upper end of the pull-out connecting rod 24 away from the solid counterweight 26 is set as a smooth rod. The U-shaped fixed frame 21 is provided with a locking screw hole 23 that matches the external thread 25, and the inner diameter of the locking screw hole 23 is larger than the outer diameter of the smooth rod of the pull-out connecting rod 24 to facilitate the up and down movement of the pull-out connecting rod 24. The upper end of the pull-out connecting rod 24, which is higher than the U-shaped fixed frame 21, is provided with a pull-out rotating handle 22 for easy operation. Its design allows the operator to easily adjust the height and position of the counterweight, that is, the pull-out rotating handle 22 can drive the pull-out connecting rod 24 to move up and down in the locking screw hole 23 and rotate clockwise / counterclockwise.

[0038] When the sampling drill cylinder 19 at the front of the center of the base frame 2 descends and contacts the road surface, the sampling drill cylinder 19 rotates at high speed and drills into the road surface. The reaction force generated in this process can easily cause displacement in front of the sampling equipment. At this time, the sampling anti-displacement device 13 comes into play. By rotating and pulling the rotary handle 22, the external thread 25 of the pull rod 24 is pushed down in the locking screw hole 23 by the thread until the external thread 25 is completely disengaged from the locking screw hole 23, thus losing its locking effect. At this time, the solid counterweight 26 will descend by its own weight, causing the pull rod 24 to move downward in the locking screw hole 23 until the solid counterweight 26 is completely placed on the road surface. At the same time, the rotary handle 22 is blocked at the top of the U-shaped fixing frame 21. Since the solid counterweight 26 has a large weight, it can increase the stability of the front of the sampling equipment and effectively resist the reaction force during the sampling process. To prevent displacement of the equipment, when the sampling anti-displacement device 13 is not needed, the pull-out connecting rod 24 is pulled upward by pulling the rotary handle 22, which drives the solid counterweight 26 upward, causing the solid counterweight 26 to detach from the road surface. Then, continue pulling upward until the top of the external thread 25 on it is inserted into the locking screw hole 23. Next, the external thread 25 on the pull-out connecting rod 24 is rotated by pulling the rotary handle 22. Since the external thread 25 and the inner wall thread of the locking screw hole 23 are matched, the external thread 25 is screwed into the locking screw hole 23, and the pull-out connecting rod 24 is fixed by the thread, thereby suspending the solid counterweight 26. This avoids interference with other operations when the equipment is moving or when sampling is not being performed. This design ensures that it can play a quick and effective role when anti-displacement is needed, and can be easily stored when not needed, improving the convenience and flexibility of the equipment.

[0039] In this embodiment, the U-shaped fixing frame 21 is installed on the base frame 2 by screwing or welding through the connecting plate 27, so as to facilitate stable assembly and withstand greater reaction force, ensuring safety during the sampling process.

[0040] In this embodiment, the base frame 2 is configured as one of a U-shaped frame, a well-shaped frame, an H-shaped frame, or a square frame. These shapes provide good support and stability, ensuring the safety of the equipment during operation. For example, if two base frames 2 are arranged side by side, and connecting frames are connected at their center and rear ends, the connection strength between the two base frames 2 is enhanced, improving the overall stability of the equipment. The base frame is provided with moving wheels and footrest mounting holes 1, and a moving handle 6. Multiple moving wheels and footrest mounting holes 1 are provided, allowing moving wheels and footrests to be installed at the bottom of the front and rear ends of the base frame 2 using screws. When the equipment needs to be moved, the moving wheels are installed to facilitate flexible movement of the equipment at the highway construction site, improving its mobility. When the equipment reaches the sampling position and needs to be fixed, the footrests are installed. By adjusting the height of the footrests, the equipment is placed stably on the ground, preventing movement during sampling and affecting the accuracy of the sampling. The moving handle 6 facilitates the operator to push the equipment, improving the ease of operation.

[0041] For example Figure 7 As shown, in another embodiment, the mating structure between the external thread 25 and the locking screw hole 23 can be replaced by a pin 28. That is, the pin 28 can be used to fix and release the solid counterweight 26 through simple insertion and removal operations. The pin design makes operation more intuitive and reduces the number of steps. Its simple design facilitates later inspection and maintenance, reducing equipment maintenance costs.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A highway construction testing and sampling device, comprising a sampling mechanism (12) mounted on a base frame (2), characterized in that, A sampling anti-displacement device (13) is provided on the base frame (2) and located on at least one side of the sampling mechanism (12). The sampling anti-displacement device (13) consists of a U-shaped fixing frame (21) and solid counterweights (26). The U-shaped fixing frame (21) is fixedly connected to the base frame (2), and multiple solid counterweights (26) are provided on the U-shaped fixing frame (21) at intervals along its length.

2. The highway construction testing and sampling equipment according to claim 1, characterized in that, The solid counterweight (26) can be suspended on the U-shaped fixing frame (21) by a pull-out connecting rod (24). The pull-out connecting rod (24) has an external thread (25) at its lower end connected to the solid counterweight (26). The upper end of the pull-out connecting rod (24) away from the solid counterweight (26) is set as a smooth rod. The U-shaped fixing frame (21) is provided with a locking screw hole (23) that matches the external thread (25), and the inner diameter of the locking screw hole (23) is larger than the outer diameter of the smooth rod of the pull-out connecting rod (24).

3. The highway construction testing and sampling equipment according to claim 2, characterized in that, A pull-out rotating handle (22) is provided at the upper end of the pull-out connecting rod (24) and above the U-shaped fixing frame (21).

4. The highway construction testing and sampling equipment according to claim 2, characterized in that, The structure in which the external thread (25) and the locking screw hole (23) cooperate is replaced by a pin (28).

5. The highway construction testing and sampling equipment according to claim 1, characterized in that, The U-shaped fixing frame (21) is mounted on the base frame (2) via a connecting plate (27).

6. The highway construction testing and sampling equipment according to any one of claims 1-5, characterized in that, The sampling mechanism (12) consists of a lifting assembly (11), a sampling drill barrel (19), and a sampling motor (20). The sampling motor (20) is mounted on the lifting assembly (11), and the output shaft of the sampling motor (20) is connected to the sampling drill barrel (19). The lifting assembly (11) includes lifting guide columns (3), a top seat (7), a lifting screw (9), and a lifting base (15). A pair of lifting guide columns (3) are mounted on the base frame (2), and the top of the pair of lifting guide columns (3) is... The top seat (7) is connected; the two ends of the lifting seat (15) are respectively provided with guide cylinders (14) that slide with the two lifting guide columns (3); the top seat (7) is provided with an internal thread hole (8) that matches the lifting screw (9); the upper end of the lifting screw (9) is provided with a lifting operation handwheel (10), the lower end of the lifting screw (9) is connected to the lifting seat (15) through an anti-detachment fixing ring (16), and the sampling motor (20) is provided on the lifting seat (15).

7. The highway construction testing and sampling equipment according to claim 6, characterized in that, The base frame (2) is configured as one of a U-shaped frame, a well-shaped frame, an H-shaped frame or a square frame, and is provided with movable wheels and foot cup mounting holes (1) and movable handrails (6).

8. The highway construction testing and sampling equipment according to claim 6, characterized in that, The lifting seat (15) includes a support plate (18) connected by a vertical plate and a stiffening plate (17), and the sampling motor (20) is mounted on the support plate (18).

9. The highway construction testing and sampling equipment according to claim 6, characterized in that, A battery box (5) is mounted on the base frame (2) via a frame plate (4), and the battery box (5) is arranged on the opposite side of the sampling mechanism (12) and the sampling anti-displacement device (13).

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