A highway base compaction degree detection sampling device for highway construction

Abstract

The utility model discloses a highway construction is with highway base layer compactness detection sampling device, including base and sampling frame, the top of base is installed with support column, the top of support column is installed with vertical board, the inside installation of sampling frame has compaction device, and the bottom all around of base is installed with gyro wheel subassembly. In the utility model, through setting up compaction device when through screw rod at sliding block drive, drive the protruding body to break through highway base layer surface and go deep into the ground, through sampling frame to the road building material is sampled, through compression spring drive compaction board force to road building material guarantee when drawing out the overall compactness does not appear loose under the influence of environment, thereby leading to the situation of subsequent measurement inaccuracy, through the positioning mechanism can adjust the demand of different use scene to sampling amount and adjust, start drive motor drive screw rod sliding block drive and realize the lateral direction adjustment of structure, and the fine adjustment work of sampling point is carried out after the adaptation device is fixed.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, and in particular to a sampling device for detecting the compaction degree of highway base course in highway construction. Background Technology

[0002] Compaction degree, also known as tamping degree, refers to the ratio of the dry density of compacted soil or other road construction materials to the standard maximum dry density, expressed as a percentage. The compaction quality of the roadbed and pavement is one of the most important intrinsic indicators of road engineering construction quality management. Roadbed compaction degree reflects the tightness and strength of each compacted layer of the roadbed; only when the tightness and strength of each compacted layer meets the specifications can the overall strength, stability, and durability of the roadbed meet the requirements.

[0003] A Chinese document with publication number CN212612387U discloses a sampling device for testing the compaction degree of highway base course in highway construction. The device includes a base with a shock-absorbing wheel mounted on its bottom surface. A battery box is fixedly mounted on the rear side of the base, with a charging port on the battery box. A push handle is connected to the middle of the base, and a lifting support is fixedly mounted on the front end of the base. One side of the lifting support is connected to a worm gear installed inside a lifting gearbox via a lifting gear. The worm gear meshes with a worm, and a handle is fixedly connected to one end of the worm. A motor protective housing is fixedly connected to the front side of the lifting gearbox, and a motor is installed inside the motor protective housing. A heat dissipation grid is provided on the side of the motor protective housing, and a control button is fixedly mounted on one side of the heat dissipation grid. The output shaft of the motor is fixedly connected to a sampling cylinder via a quick-release coupling, and the bottom end of the sampling cylinder has a saw cut. This device features stable movement, rapid and efficient sampling, a highly safe height adjustment mechanism, and sensitive feedback.

[0004] The current device cannot adjust the sampling amount according to different sampling depths, which makes it impossible to confirm the depth range of the sampling tube when facing different sampling depths. The device does not have the ability to quickly adjust the sampling amount according to different needs, which makes it unable to adapt to different sampling requirements. The device does not have the ability to adjust the orientation of the sampling device after positioning. In order to address the above problems, a sampling device for testing the compaction degree of highway base course for highway construction is provided. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sampling device for testing the compaction degree of highway base course in highway construction, which aims to improve the existing technology's lack of ability to adjust the energy according to different sampling needs and its lack of orientation adjustment capability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sampling device for testing the compaction degree of highway base course in highway construction includes a base and a sampling frame, wherein the base is used to support the sampling frame to perform multi-axis movement.

[0008] A positioning block is fixed inside the sampling frame, and a positioning rod is fixedly connected to the lower end of the positioning block. A lifting block with adjustable position is fitted on the positioning rod. The lower end of the lifting block is fixedly connected to the lifting plate through a connecting rod. The lifting plate is connected to the compaction plate through a compression spring. The compaction plate is used to compact the sample after it enters the sampling frame.

[0009] Furthermore, a number of positioning holes are provided on one side of the positioning rod, and a through hole corresponding to the size of the positioning hole is provided on the lifting block. The lifting block is used to be inserted into different positioning holes through the through hole by the positioning mechanism to adjust the position of the lifting block.

[0010] Furthermore, the positioning mechanism includes a grip plate fixedly connected to the lifting block by a tension spring, and a rod is fixedly provided on the grip plate, which passes through the grip plate. When the tension spring does not apply external force, the rod passes through the lifting block and is inserted into the positioning hole.

[0011] Furthermore, the sampling frame is fixedly connected to the lower end of the top plate, and the top plate, through the second slider fixed thereto, moves up and down reciprocally under the rotation of the second lead screw.

[0012] Furthermore, the second lead screw is driven by a brake motor that is fixedly installed inside the translation frame.

[0013] Furthermore, the translation frame achieves lateral reciprocating motion through the rotation of the first lead screw driven by the first slider fixedly connected to it;

[0014] Furthermore, the first lead screw is driven by a drive motor that is fixedly connected to one side of the vertical plate;

[0015] The upright plate is fixedly connected to the base by support columns.

[0016] Furthermore, a roller assembly for moving the base is provided at the lower end of the base.

[0017] Furthermore, a cone-shaped protrusion is fixedly connected to the lower end of the sampling frame.

[0018] Furthermore, the first slider slides within a groove fixed to one side of the vertical plate;

[0019] The second slider slides within the groove two fixed to the lower end of the translation frame.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, a compaction device is installed. After transmission through a lead screw and slider, the protruding body breaks through the surface of the road base and penetrates deep into the ground. A sampling frame is used to sample the road construction material. A compression spring drives the compaction plate to exert force on the road construction material, ensuring that the overall compaction degree will not be loosened due to environmental influences when it is extracted, thus preventing inaccurate subsequent measurements. The positioning mechanism can be adjusted to meet the sampling requirements of different usage scenarios. The drive motor is started to drive the lead screw and slider to achieve lateral orientation adjustment of the structure. After the adapter is fixed, fine-tuning is performed on the sampling points. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a highway base compaction testing and sampling device for highway construction proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the detection and sampling device of this utility model with slide groove one and slide groove two;

[0024] Figure 3 This is a schematic diagram of the compaction device of a highway base compaction degree testing and sampling device proposed in this utility model.

[0025] Figure 4 This is a partial schematic diagram of a highway base compaction testing and sampling device for highway construction proposed in this utility model;

[0026] Figure 5 This is an enlarged schematic diagram of point A of the road base compaction degree testing and sampling device for road construction proposed in this utility model;

[0027] Legend:

[0028] 1. Base; 2. Support column; 3. Vertical plate; 4. Spike; 5. Sampling frame; 6. Compaction device; 61. Positioning block; 62. Positioning rod; 63. Lifting plate; 64. Compression spring; 65. Compaction plate; 7. Roller assembly; 8. Positioning hole; 9. Lifting block; 10. Positioning mechanism; 101. Grip plate; 102. Insert rod; 103. Tension spring; 11. Connecting rod; 12. Drive motor; 13. First lead screw; 14. First slider; 15. Translation frame; 16. Brake motor; 17. Second lead screw; 18. Second slider; 19. Top plate; 20. Slide groove one; 21. Slide groove two. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1-5 This application provides a sampling device for testing the compaction degree of highway base course in highway construction.

[0031] Example 1;

[0032] The device specifically includes: a base 1 and a sampling frame 5. A support column 2 is installed on the top of the base 1, a vertical plate 3 is installed on the top of the support column 2, a compaction device 6 is installed inside the sampling frame 5, a roller assembly 7 is installed around the bottom of the base 1, and a protrusion 4 is provided at the bottom of the sampling frame 5.

[0033] The compaction device 6 includes positioning blocks 61 fixed at the top of both sides inside the sampling frame 5. A positioning rod 62 is installed at the bottom of the positioning block 61. A lifting plate 63 is sleeved on the bottom surface of the positioning rod 62. Compression springs 64 are installed on both sides of the bottom end of the lifting plate 63. A compaction plate 65 is connected to the bottom of the compression spring 64. When the road construction material is collected inside the sampling frame 5, the compression spring 64 drives the compaction plate 65 to generate a downward pressing force to ensure that the road construction material is fixed inside the sampling frame 5.

[0034] Example 2;

[0035] This embodiment is implemented based on embodiment one. The inner side of the positioning rod 62 is provided with several positioning holes 8. The outer surface of the positioning plate 62 is fitted with a lifting block 9. A positioning mechanism 10 is installed on one side of the lifting block 9 corresponding to the positioning hole 8. The lifting block 9 can be inserted and positioned with the positioning hole 8 through the positioning mechanism 10 to achieve the adjustment of different sampling amounts.

[0036] The positioning mechanism 10 includes a rod 102, which passes through the grip plate 101 and is fixedly connected to the grip plate 101. The rod 102 is used to pass through the lifting block 9 and insert into the positioning hole 8 to achieve positioning. At the same time, a tension spring 103 is fixedly connected between the grip plate 101 and the lifting block 9. The two sides of the bottom end of the lifting block 9 are connected to the lifting plate 63 by connecting rods 11.

[0037] In normal conditions, the insertion rod 102 passes through the lifting block 9 and is inserted into the positioning hole 8, thereby fixing the lifting block 9. When it is necessary to change the positioning hole 8 and adjust the vertical position of the lifting block 9, pull the handle 101 and pull it outward to move the insertion rod 102 out of the positioning hole 8 and back into the lifting block 9. Then adjust the vertical position of the lifting block 9. After reaching the target position, release the handle 101. At this time, the spring will lower the insertion rod 102 and push it into another positioning hole 8 at the target position to complete the fixing.

[0038] Example 3

[0039] This embodiment is implemented based on embodiment one. A drive motor 12 is fixedly installed on the back end of the upright plate 3. The output shaft of the drive motor 12 passes through the upright plate 3 and is connected to a first lead screw 13. A first slider 14 is screwed on the outer surface of the first lead screw 13. The drive motor 12 drives the first lead screw 13 to rotate. The first slider 14 is set in the first slide groove and can slide in the first slide groove 20. The first slider 14 is driven to move laterally and reciprocally along the first slide groove 20 by the screw drive of the first lead screw 13. The first slide groove 20 is fixed on the side of the upright plate 3 that is not where the drive motor 12 is located.

[0040] The drive motor 12 can rotate in both directions to realize the forward and reverse rotation of the first lead screw. It is generally a servo motor.

[0041] Example 4

[0042] This embodiment is implemented based on embodiment three. The bottom of the first slider 14 is fixedly connected to a translation frame 15. A brake motor 16 is installed inside the translation frame 15. The bottom of the brake motor 16 passes through the translation frame 15 and is connected to a second lead screw 17. The outer surface of the second lead screw 17 is screw-driven with a second slider 18. The second slider 18 is set in the second slide groove 21 and can slide in the second slide groove 21. A top plate 19 is set on one side of the second slider 18. The bottom of the top plate 19 is fixedly connected to the sampling frame 5. The first slider 14 drives the translation frame 15 to move synchronously. The brake motor 16 is started to drive the second lead screw 17 to rotate, thereby driving the second slider 18 to reciprocate in the second slide groove 21. The second slide groove 21 is fixedly connected to the lower end of the translation frame 15.

[0043] The brake motor 16 can rotate in both directions to achieve the forward and reverse rotation of the second lead screw. It is generally a servo motor.

[0044] Example 5: This example combines all the above examples for implementation.

[0045] Working principle: During use, the roller assembly 7 moves the base 1 to the road construction section. The roller assembly 7 has a self-locking component to provide stable support for the overall structure. The drive motor 12 is started to rotate the first lead screw 13. The first lead screw 13 drives the first slider 14 to move laterally back and forth on its surface through a screw drive. The first slider 14 drives the translation frame 15 to move synchronously. The translation frame 15 drives the sampling frame 5 to move. The protrusion 4 is aligned with the sampling point. The brake motor 16 is started to rotate the second lead screw 17. The second lead screw 17 drives the second slider 18 to move vertically on its surface through a screw drive. The protrusion 4 breaks through the base surface and drives the sampling frame 5 to penetrate into the ground. Road construction materials are extracted through the sampling frame. The sampling frame 5 is used for collection. After the road construction material fills the interior of the sampling frame 5, it will squeeze the top compaction plate 65. Under the rebound force of the compression spring 64, the compaction plate 65 will drive the compaction plate 65 to exert a reaction force on the road construction material. At this time, the second slider 18 is reversed and vertically lifted at the second screw 17. The top plate 19 drives the sampling frame 5 to be pulled out of the ground. The compaction device 6 ensures that the road construction material is stably stored inside the sampling frame 5. As needed, the handle 102 is manually grasped to drive the insertion rod 102 to be pulled out of the positioning block 8. The upgrading block 9 is vertically adjusted at the positioning rod 62. The lifting plate 63 is moved synchronously through the connecting rod 11, thereby adjusting the distance between the compaction plate 65 and the bottom of the sampling frame 5, and thus adjusting the sampling amount.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for testing the compaction degree of highway base course in highway construction, comprising a base and a sampling frame, characterized in that: The base is used to support the sampling frame for multi-axis movement; A positioning block is fixed inside the sampling frame, and a positioning rod is fixedly connected to the lower end of the positioning block. A lifting block with adjustable position is fitted on the positioning rod. The lower end of the lifting block is fixedly connected to the lifting plate through a connecting rod. The lifting plate is connected to the compaction plate through a compression spring. The compaction plate is used to compact the sample after it enters the sampling frame.

2. The sampling device for detecting the compaction degree of highway base course in highway construction according to claim 1, characterized in that, The positioning rod has several positioning holes on one side, and the lifting block has through holes corresponding to the size of the positioning holes. The lifting block is used to be inserted into different positioning holes through the through holes by the positioning mechanism to adjust the position of the lifting block.

3. The sampling device for detecting the compaction degree of highway base course in highway construction according to claim 2, characterized in that, The positioning mechanism includes a grip plate fixedly connected to the lifting block by a tension spring. A rod is fixedly installed on the grip plate, and when the tension spring does not apply external force, the rod passes through the lifting block and is inserted into the positioning hole.

4. The highway base course compaction testing and sampling device according to claim 2, characterized in that, The sampling frame is fixedly connected to the lower end of the top plate. The top plate moves up and down reciprocally under the rotation of the second lead screw via the second slider fixed to it.

5. A sampling device for testing the compaction degree of highway base course in highway construction according to claim 4, characterized in that, The second lead screw is driven by a brake motor that is fixedly installed inside the translation frame.

6. A sampling device for detecting the compaction degree of highway base course in highway construction according to claim 5, characterized in that, The translation frame achieves lateral reciprocating motion through the rotation of the first lead screw driven by the first slider fixedly connected to it.

7. A sampling device for detecting the compaction degree of highway base course in highway construction according to claim 6, characterized in that, The first lead screw is driven by a drive motor that is fixedly connected to one side of the vertical plate; The upright plate is fixedly connected to the base by support columns.

8. A sampling device for testing the compaction degree of highway base course in highway construction according to claim 1, characterized in that, The lower part of the base is equipped with a roller assembly for moving the base.

9. A sampling device for detecting the compaction degree of highway base course in highway construction according to claim 1, characterized in that, A cone-shaped protrusion is fixedly connected to the lower end of the sampling frame.

10. A sampling device for detecting the compaction degree of highway base course in highway construction according to claim 7, characterized in that, The first slider slides within a groove fixed to one side of the vertical plate; The second slider slides within the groove two fixed to the lower end of the translation frame.

Images