A highway base compaction degree detection sampling device

Abstract

This utility model discloses a sampling device for testing the compaction degree of highway base courses, including a trolley. A hollow plate is fixedly connected to the surface of the trolley, and a bracket is sleeved on the inner wall of the hollow plate. A sampling cylinder is arranged below the bracket. A first crossbar and a second crossbar are fixedly connected to the side walls of the hollow plate, respectively. A crossbar passes through the inner walls of the hollow plate and the bracket, and a connecting column is fixedly connected to the end of the crossbar. This utility model relates to the field of highway construction testing technology. This sampling device for testing the compaction degree of highway base courses, through the cooperation between the connecting column, crossbar, screw, and nut, reduces the height of the internal frame of the device. It solves the problem that during transportation, the overall height of the internal frame of the sampling device is relatively high, and the tall frame is prone to collision with transportation equipment. Moreover, the large space occupied during transportation makes it inconvenient to transport the entire sampling device.

Description

Technical Field

[0001] This utility model relates to the field of highway construction testing technology, specifically a sampling device for testing the compaction degree of highway base courses. Background Technology

[0002] When paving a highway, it is necessary to take core samples from the highway base layer using a sampling device, and then test the compaction of the core samples. The test results are used to determine whether the highway base layer is firmly laid and whether it meets the current usage requirements of the highway.

[0003] For example, a highway base compaction testing sampling device with authorization announcement number CN222771445U includes a drill cylinder, a first cavity and a second cavity opened in the cylinder wall, and a sleeve slidably fitted on the top of the drill cylinder, with the cylinder wall of the sleeve located in the first cavity; although the above document can realize the sample being pushed out of the drill cylinder by the extrusion mechanism without manually opening the drill cylinder, making the operation more convenient and reducing the possibility of sample breakage;

[0004] However, when transporting the sampling device, the overall height of the internal frame is relatively high, making it difficult to move the device onto the conveyor. The tall frame is also prone to collisions with the transport equipment, and the transport occupies a large space with extremely low space utilization, making it inconvenient to transport the entire sampling device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sampling device for testing the compaction degree of highway base courses. This device solves the problem that during transportation, the overall height of the internal frame is relatively high, making it prone to collisions with transport equipment. Furthermore, the large space occupied during transportation results in extremely low space utilization, making it inconvenient to transport the entire sampling device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for testing the compaction degree of a highway base course, comprising a trolley, a hollow plate fixedly connected to the surface of the trolley, a bracket sleeved on the inner wall of the hollow plate, a sampling cylinder disposed below the bracket, a first crossbar and a second crossbar fixedly connected to the side walls of the hollow plate, a crossbar penetrating the inner walls of the hollow plate and the bracket, a connecting column fixedly connected to the end of the crossbar, the side wall of the connecting column fitting against the outer wall of the hollow plate away from the first crossbar, the outer wall of the crossbar being inserted into the inner walls of the first crossbar and the second crossbar respectively, the first crossbar being rotatably connected to the outer wall of the second crossbar via a pin, and a screw being rotatably connected to the end of the second crossbar via a pin, the outer wall of the screw being threaded with a nut.

[0007] Preferably, a protrusion is fixedly connected to the lower inner wall of the first crossbar, and the outer wall of the protrusion is inserted into the upper outer wall of the crossbar.

[0008] Preferably, an electric telescopic rod is fixedly connected to the upper part of the outer wall of the bracket by bolts, and a housing is fixedly connected to the bottom output end of the electric telescopic rod by bolts.

[0009] Preferably, a motor is fixedly connected to the bottom of the inner wall of the housing by bolts, a rotating shaft is fixedly connected to the output end of the motor, the outer wall of the rotating shaft is rotatably connected to the lower part of the inner wall of the housing by bearings, and a connecting sleeve is fixedly connected to the bottom of the rotating shaft.

[0010] Preferably, the front of the box is hinged with a door.

[0011] Preferably, the inner wall of the connecting sleeve is inserted into the upper part of the outer wall of the sampling tube, and the outer wall of the connecting sleeve is respectively fitted with a first clamp and a second clamp, which are fixedly connected by bolts. The inner walls of the first clamp and the second clamp are respectively fixedly connected with insert blocks, and the outer wall of the insert blocks penetrates the connecting sleeve. An insertion hole is opened on the upper part of the outer wall of the sampling tube, and the outer wall of the insert blocks is inserted into the inner wall of the insertion hole.

[0012] Beneficial effects

[0013] This utility model provides a sampling device for testing the compaction degree of highway base courses. It has the following advantages: This sampling device, through the cooperation of the first horizontal column, second horizontal column, connecting column, crossbar, screw, and nut, reduces the height of the internal frame, facilitating transportation of the sampling device. It solves the problem that during transportation, the overall height of the internal frame is relatively high, making it prone to collisions with transport equipment, and the large space occupied during transport results in extremely low space utilization, thus making the overall transportation of the sampling device inconvenient.

[0014] By cooperating with the first clamp, the second clamp, the insert block, and the insertion hole, the sampling tube can be easily replaced. This solves the problem that in traditional sampling devices, the connection between the sampling tube and the drive component is cumbersome when replacing sampling tubes of different lengths, resulting in a complicated disassembly and assembly process that is time-consuming and reduces the efficiency of sampling tube replacement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Exploded view;

[0017] Figure 3 for Figure 1 Structural diagram of hollow core slab, support frame and electric telescopic rod;

[0018] Figure 4 for Figure 3 A structural diagram of the first horizontal bar, the second horizontal bar, and the horizontal rod;

[0019] Figure 5 for Figure 2 A schematic diagram of the structure of the connecting sleeve, sampling cylinder and first clamp.

[0020] In the diagram: 1. Trolley; 2. Hollow board; 3. Bracket; 4. Electric telescopic rod; 5. Box body; 6. Box door; 7. Motor; 8. Shaft; 9. Connecting sleeve; 10. Sampling cylinder; 11. First crossbar; 12. Second crossbar; 13. Connecting column; 14. Crossbar; 15. Screw; 16. Nut; 17. Protrusion; 18. First clamp; 19. Second clamp; 20. Insert block; 21. Insertion hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] When transporting the sampling device, the overall height of the internal frame is relatively high, and the tall frame is prone to collisions with the transport equipment. In addition, the transport occupies a lot of space and the space utilization rate is extremely low, making it inconvenient to transport the sampling device as a whole.

[0023] In view of this, the present invention provides a sampling device for testing the compaction degree of highway base course. Through the cooperation between the first horizontal column, the second horizontal column, the connecting column, the crossbar, the screw, and the nut, the height of the internal frame of the device is reduced, which facilitates the transportation of the sampling device. This solves the problem that when transporting the sampling device, the overall height of the internal frame of the device is relatively high, and the tall frame is prone to collision with the transport equipment. In addition, the transport occupies a lot of space and the space utilization rate is extremely low, which makes it inconvenient to transport the sampling device as a whole.

[0024] Those skilled in the art will connect the electrical components and their compatible power supplies in this case using wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle below, where the electrical components are connected in the order of operation. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0025] Example 1, by Figure 1-5 As can be seen, the sampling device for testing the compaction degree of highway base course in this case includes a trolley 1, a hollow plate 2 fixedly connected to the surface of the trolley 1, a bracket 3 sleeved on the inner wall of the hollow plate 2, a sampling cylinder 10 set below the bracket 3, a first horizontal column 11 and a second horizontal column 12 fixedly connected to the side walls of the hollow plate 2 respectively, a horizontal bar 14 passing through the inner walls of the hollow plate 2 and the bracket 3 respectively, a connecting column 13 fixedly connected to the end of the horizontal bar 14, the side wall of the connecting column 13 adhering to the outer wall of the hollow plate 2 on the side away from the first horizontal column 11, the outer wall of the horizontal bar 14 being inserted into the inner wall of the first horizontal column 11 and the inner wall of the second horizontal column 12 respectively, the first horizontal column 11 being rotatably connected to the outer wall of the second horizontal column 12 by a pin, the end of the second horizontal column 12 being rotatably connected to a screw 15 by a pin, and a nut 16 being threadedly connected to the outer wall of the screw 15;

[0026] In the specific implementation process, it is worth noting that when the sampling device is working, the staff first pushes the trolley 1 to move the device to the working position, and then samples the road base layer through the sampling cylinder 10 to test the compaction degree of the road base layer. The bottom of the sampling cylinder 10 is set with a serrated shape to crush and collect the core sample. The hollow plate 2 and the bracket 3 form the frame. When transporting the sampling device, the sampling cylinder 10 is first rotated off. After that, the staff rotates the nut 16 to release the fixation of the first horizontal column 11 and the second horizontal column 12, thereby rotating the screw 15 out of the first horizontal column 11. After that, the staff rotates the first horizontal column 11 so that it rotates with the pin shaft as the center, exposing the horizontal bar 14. After that, the staff moves the connecting column 13, which drives the horizontal bar 14 to move, thus exposing the horizontal bar 14. After the rod 14 is removed from the bracket 3, the operator moves the bracket 3 to retract it into the hollow plate 2. Then, the operator moves the connecting column 13 to reinsert the crossbar 14 into the bracket 3, so that the end of the crossbar 14 is inserted into the second crossbar 12. Finally, the operator rotates the first crossbar 11 to its initial position to contact the crossbar 14. After that, the operator rotates the screw 15 to rotate it back into the first crossbar 11. The operator then rotates the rotating nut 16 to fix the first crossbar 11 and the second crossbar 12, thereby fixing the position of the bracket 3 and reducing the height of the internal frame of the device for transportation. When the device is in use, the above steps are repeated to raise the bracket 3 out of the hollow plate 2, thereby reducing the height of the internal frame of the device and facilitating the transportation of the sampling device.

[0027] Furthermore, a protrusion 17 is fixedly connected to the lower inner wall of the first horizontal column 11, and the outer wall of the protrusion 17 is inserted into the upper outer wall of the horizontal bar 14.

[0028] In the specific implementation process, it is worth noting that when the first horizontal column 11 is rotated back to the initial position, the first horizontal column 11 drives the protrusion 17 to move and insert the protrusion 17 into the hole above the outer wall of the horizontal bar 14, thereby limiting the horizontal bar 14 and preventing the horizontal bar 14 from displacing when the sampling device is working.

[0029] Furthermore, an electric telescopic rod 4 is fixedly connected to the upper part of the outer wall of the bracket 3 by bolts, and a housing 5 is fixedly connected to the bottom output end of the electric telescopic rod 4 by bolts.

[0030] In the specific implementation process, it is worth noting that a dustproof net can be connected to the side wall of the box 5 by bolts to dissipate heat from the motor 7 inside the box 5. The electric telescopic rod 4 is model JEA-500-300-24V. The staff connects the electric telescopic rod 4 to an external power source to start the electric telescopic rod 4. The electric telescopic rod 4 then moves the box 5, which in turn moves the sampling cylinder 10 down to take samples from the road base. The compaction of the sample core is then tested by external testing equipment. After the sampling is completed, the electric telescopic rod 4 moves the sampling cylinder 10 up and back to its initial position, thus driving the sampling cylinder 10 to move up and down.

[0031] Furthermore, a motor 7 is fixedly connected to the bottom of the inner wall of the housing 5 by bolts, a rotating shaft 8 is fixedly connected to the output end of the motor 7, the outer wall of the rotating shaft 8 is rotatably connected to the bottom of the inner wall of the housing 5 by bearings, and a connecting sleeve 9 is fixedly connected to the bottom of the rotating shaft 8.

[0032] In the specific implementation process, it is worth noting that the model of motor 7 is 42BLDC-300-24V. The staff connects motor 7 to an external power supply, so that motor 7 works. Motor 7 drives shaft 8 to rotate, shaft 8 drives connecting sleeve 9 to rotate, and connecting sleeve 9 drives sampling cylinder 10 to rotate, thereby sampling the road base layer. After sampling is completed, the staff stops motor 7 and starts sampling cylinder 10 to rotate.

[0033] Furthermore, a door 6 is hinged to the front of the box body 5;

[0034] In the specific implementation process, it is worth noting that the staff can disassemble and reassemble the motor 7 by opening the box door 6 and turning the bolts on the motor 7, so as to inspect and repair the motor 7.

[0035] Example 2, by Figure 1 , 2 As shown in Figure 5, the inner wall of the connecting sleeve 9 is inserted into the upper part of the outer wall of the sampling cylinder 10. The outer wall of the connecting sleeve 9 is respectively fitted with the first clamp 18 and the second clamp 19. The first clamp 18 and the second clamp 19 are fixedly connected by bolts. The inner wall of the first clamp 18 and the inner wall of the second clamp 19 are respectively fixedly connected with the insert block 20. The outer wall of the insert block 20 penetrates the connecting sleeve 9. An insertion hole 21 is opened on the upper part of the outer wall of the sampling cylinder 10. The outer wall of the insert block 20 is inserted into the inner wall of the insertion hole 21.

[0036] In the specific implementation process, it is worth noting that when it is necessary to replace the sampling cylinder 10, the worker first rotates the bolts on the first clamp 18 and the second clamp 19 to release the fixation between the first clamp 18 and the second clamp 19. Then, the worker moves the first clamp 18 and the second clamp 19, thereby moving the insert block 20 and moving the insert block 20 out of the insertion hole 21. At this time, the connection between the sampling cylinder 10 and the connecting sleeve 9 is released, and the sampling cylinder 10 is disassembled. After that, the worker inserts the top of the replacement sampling cylinder 10 into the connecting sleeve 9. The worker then puts the first clamp 18 and the second clamp 19 back onto the connecting sleeve 9, so that the insert block 20 is inserted into the insertion hole 21. Finally, the worker rotates the corresponding bolts to re-fix the first clamp 18 and the second clamp 19 and fix the replacement sampling cylinder 10, thus facilitating the replacement of the sampling cylinder 10.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting and sampling the compactness of a road base, comprising a trolley (1), characterized in that: A hollow plate (2) is fixedly connected to the surface of the trolley (1). A bracket (3) is sleeved on the inner wall of the hollow plate (2). A sampling cylinder (10) is provided below the bracket (3). A first horizontal column (11) and a second horizontal column (12) are fixedly connected to the side walls of the hollow plate (2). A horizontal bar (14) passes through the inner walls of the hollow plate (2) and the bracket (3). A connecting column (13) is fixedly connected to the end of the horizontal bar (14). The side wall of 13) is attached to the outer wall of the hollow plate (2) on the other side away from the first horizontal column (11). The outer wall of the horizontal bar (14) is respectively inserted into the inner wall of the first horizontal column (11) and the inner wall of the second horizontal column (12). The first horizontal column (11) is rotatably connected to the outer wall of the second horizontal column (12) by a pin. The end of the second horizontal column (12) is rotatably connected to a screw (15) by a pin. The outer wall of the screw (15) is threaded with a nut (16).

2. The highway base compactness detection sampling device according to claim 1, characterized in that: A protrusion (17) is fixedly connected to the lower inner wall of the first horizontal bar (11), and the outer wall of the protrusion (17) is inserted into the upper outer wall of the horizontal bar (14).

3. The highway base compactness detection sampling device according to claim 1, characterized in that: An electric telescopic rod (4) is fixedly connected to the upper part of the outer wall of the bracket (3) by bolts, and a box (5) is fixedly connected to the bottom output end of the electric telescopic rod (4) by bolts.

4. The highway base compactness detection sampling device according to claim 3, characterized in that: A motor (7) is fixedly connected to the bottom of the inner wall of the housing (5) by bolts. A rotating shaft (8) is fixedly connected to the output end of the motor (7). The outer wall of the rotating shaft (8) is rotatably connected to the lower part of the inner wall of the housing (5) by bearings. A connecting sleeve (9) is fixedly connected to the bottom of the rotating shaft (8).

5. A sampling device for detecting the compaction degree of highway base course according to claim 3, characterized in that: The front of the box (5) is hinged with a box door (6).

6. The highway base compactness detection sampling device according to claim 4, characterized in that: The inner wall of the connecting sleeve (9) is inserted into the upper part of the outer wall of the sampling cylinder (10). The outer wall of the connecting sleeve (9) is respectively fitted with a first clamp (18) and a second clamp (19). The first clamp (18) and the second clamp (19) are fixedly connected by bolts. The inner wall of the first clamp (18) and the inner wall of the second clamp (19) are respectively fixedly connected with insert blocks (20). The outer wall of the insert block (20) penetrates the connecting sleeve (9). An insertion hole (21) is opened on the upper part of the outer wall of the sampling cylinder (10). The outer wall of the insert block (20) is inserted into the inner wall of the insertion hole (21).

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