Device for improving on-site compaction degree detection precision

Abstract

The utility model discloses a device for improving on-site compaction degree detection precision, which is characterized in that a movable frame comprises a base and a frame body, a sampling assembly comprises a lifting platform and a sampling barrel, a left sliding seat and a right sliding seat are respectively arranged on two opposite sides of the lifting platform, a rotary driving unit is arranged on the lifting platform, the sampling barrel is connected with the rotary driving unit, and the left sliding seat and the right sliding seat are arranged on the lifting platform. A lifting driving unit is arranged on the top mounting base, the lifting table is driven by the lifting driving unit to move up and down along the first vertical frame and the second vertical frame, the protection assembly comprises a left protection plate and a right protection plate, and a sampling cavity allowing the sampling barrel to pass through is formed between the left protection plate and the right protection plate. According to the device provided by the utility model, the lifting driving unit and the rotary driving unit synchronously work, so that the sampling barrel is rotationally cut into the interior of a roadbed for cutting and sampling, and the roadbed around a sampling pit is protected by the left protection plate and the right protection plate, so that the roadbed is prevented from falling into the sampling pit.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed detection, in particular to a device for improving the accuracy of on-site compaction detection. Background Art

[0002] Subgrade compaction originally refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density, expressed as a percentage. Subgrade compaction is a key indicator for evaluating the quality of subgrade and pavement construction, characterizing the density after on-site compaction. Higher compaction indicates greater density and better overall material performance. For subgrades, semi-rigid pavement bases, and flexible granular bases, compaction refers to the ratio of the actual dry density achieved on-site to the maximum dry density obtained through internal standard compaction tests. For asphalt pavements and asphalt-stabilized bases, compaction refers to the ratio of the density achieved on-site to the internal standard density.

[0003] In the prior art, when testing the compaction of the roadbed, operators often use the sand filling method to test the compaction of the roadbed. When the operator digs the roadbed sample, the operator needs to place a limiting plate with a limiting hole of the specified sampling pit size on the roadbed, then use its own weight to press the limiting plate, and then use a shovel to dig the roadbed sample from the limiting hole. In the process of the operator manually digging the roadbed sample, when the shovel contacts the edge of the limiting hole, it is easy to cause the roadbed around the limiting hole to turn outward. When the operator manually presses the limiting plate, it is easy to cause the limiting plate to move, causing the turned-out roadbed to fall into the sampling pit, thereby affecting the accuracy of the subsequent operator's measurement of the roadbed compaction using the sand filling method. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a device for improving the accuracy of on-site compaction detection, so as to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A device for improving on-site compaction detection accuracy, comprising:

[0007] A mobile frame, the mobile frame comprising a base and a frame body disposed on the base, the bottom of the base being provided with a moving member, the frame body comprising a first vertical frame and a second vertical frame disposed opposite to each other, the tops of the first vertical frame and the second vertical frame being provided with a top mounting seat;

[0008] A sampling assembly, comprising a lifting platform and a sampling cylinder, wherein a left sliding seat and a right sliding seat are respectively provided on opposite sides of the lifting platform, wherein the left sliding seat is slidably connected to the first vertical frame, and the right sliding seat is slidably connected to the second vertical frame, wherein a rotation drive unit is provided on the lifting platform, and the sampling cylinder is connected to the rotation drive unit, and a lifting drive unit is provided on the top mounting seat, and the lifting platform is driven by the lifting drive unit to move up and down along the first vertical frame and the second vertical frame;

[0009] A protective assembly, the protective assembly includes a left protective plate and a right protective plate arranged opposite to each other, an open cavity is provided on the base, the left protective plate and the right protective plate are located in the open cavity, and a sampling cavity for the sampling tube to pass through is formed between the left protective plate and the right protective plate.

[0010] In the above-mentioned device for improving the accuracy of on-site compaction detection, the base forms side connecting beams on opposite sides of the opening cavity, and the distance between the two side connecting beams is greater than the size of the sampling cavity.

[0011] The above-mentioned device for improving the accuracy of on-site compaction detection has a left installation cavity and a right installation cavity provided on opposite sides of the opening cavity, a left drive unit provided in the left installation cavity, and the left protective plate connected to the left drive unit.

[0012] In the above-mentioned device for improving the accuracy of on-site compaction detection, a right drive unit is provided in the right installation cavity, and the right protective plate is connected to the right drive unit.

[0013] The above-mentioned device for improving the accuracy of on-site compaction detection is provided with an upper horizontal slide groove on the side connecting beam, and upper sliding blocks are respectively provided at both ends of the left protective plate and the right protective plate, and the upper sliding blocks are slidably connected in the upper horizontal slide groove.

[0014] The above-mentioned device for improving the accuracy of on-site compaction detection also includes a movable protective plate. The bottoms of the left protective plate and the right protective plate are both provided with bottom openings facing downward, and the upper ends of the movable protective plates are movably connected in the bottom openings.

[0015] In the above-mentioned device for improving the accuracy of on-site compaction detection, a lower sliding limiting groove is provided on the side connecting beam, and the lower sliding limiting groove includes a first horizontal section, an inclined end and a second horizontal section that are connected.

[0016] In the above-mentioned device for improving the accuracy of on-site compaction detection, lower sliding blocks are provided on opposite sides of the movable protective plate, and the lower sliding blocks are respectively slidably restricted in the lower sliding restriction grooves.

[0017] In the above technical solution, the utility model provides a device for improving the accuracy of on-site compaction detection, including a mobile frame, a sampling assembly and a protective assembly. The mobile frame includes a base and a frame body arranged on the base. The frame body includes a first vertical frame and a second vertical frame arranged relatively to each other. A top mounting seat is provided on the top of the first vertical frame and the second vertical frame. A vertical movement space for the sampling assembly to move up and down is formed between the first vertical frame and the second vertical frame. The sampling assembly includes a lifting platform and a sampling cylinder. The lifting platform is slidably connected to the first vertical frame and the second vertical frame through a left sliding seat and a right sliding seat. A rotary drive unit is provided on the lifting platform. The sampling cylinder is driven by the rotary drive unit and can rotate. In this process, the lifting platform is driven by the lifting drive unit, so that the lifting platform, the drive motor and the sampling cylinder move downward. During this process, the rotary drive unit works synchronously, so that the sampling cylinder rotates and cuts into the roadbed for cutting and sampling. At the same time, during the sampling process, the left protective plate and the right protective plate are located on both sides of the sampling cylinder to protect the roadbed around the sampling pit to prevent the roadbed from falling into the sampling pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A front view of a device for improving on-site compaction detection accuracy provided by an embodiment of the utility model;

[0020] Figure 2 A left side view of a device for improving on-site compaction detection accuracy provided by an embodiment of the present utility model;

[0021] Figure 3 A bottom view of a device for improving on-site compaction detection accuracy provided by an embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram of a movable protective plate provided in an embodiment of the present utility model;

[0023] Figure 5 A schematic structural diagram of the left side protective plate provided in an embodiment of the present utility model.

[0024] Description of reference numerals:

[0025] 1. Moving frame; 11. Base; 111. Opening cavity; 112. Side connecting beam; 113. Upper horizontal slide; 114. Lower sliding limit groove; 115. First horizontal section; 116. Inclined end; 117. Second horizontal section; 12. First vertical frame; 13. Second vertical frame; 14. Top mounting seat; 15. Lifting drive unit; 16. Moving part; 2. Sampling assembly; 21. Lifting platform; 22. Left sliding seat; 23. Right sliding seat; 24. Rotating drive unit; 25. Sampling cylinder; 3. Protective assembly; 31. Left protective plate; 32. Right protective plate; 33. Left drive unit; 34. Right drive unit; 35. Upper sliding block; 36. Bottom opening; 37. Movable protective plate; 371. Bottom contact plate; 372. Movable connecting plate; 38. Lower sliding block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, the utility model provides a device for improving the accuracy of on-site compaction detection, including a mobile frame 1, a sampling assembly 2 and a protective assembly 3. The mobile frame 1 includes a base 11 and a frame body arranged on the base 11. The bottom of the base 11 is provided with a moving member 16. The frame body includes a first vertical frame 12 and a second vertical frame 13 arranged opposite to each other. The tops of the first vertical frame 12 and the second vertical frame 13 are provided with a top mounting seat 14. The sampling assembly 2 includes a lifting platform 21 and a sampling tube 25. The left sliding seat 22 and the right sliding seat 23 are respectively provided on the opposite sides of the lifting platform 21. The left sliding seat 22 is slidably connected to the first vertical frame 12, and the right sliding seat 23 is slidably connected to the first vertical frame 12. It is slidably connected to the second vertical frame 13, and a rotation drive unit 24 is provided on the lifting platform 21. The sampling tube 25 is connected to the rotation drive unit 24. A lifting drive unit 15 is provided on the top mounting seat 14. The lifting platform 21 is driven by the lifting drive unit 15 and can move up and down along the first vertical frame 12 and the second vertical frame 13. The protective assembly 3 includes a left protective plate 31 and a right protective plate 32 arranged opposite to each other. An open cavity 111 is provided on the base 11. The left protective plate 31 and the right protective plate 32 are located in the open cavity 111. A sampling cavity for the sampling tube 25 to pass through is formed between the left protective plate 31 and the right protective plate 32.

[0028] Specifically, an open cavity 111 is provided in the middle position of the base 11, and the opposite sides of the open cavity 111 are a left base and a right base respectively. A moving part 16 is provided at the bottom of the left base and the right base. The moving part 16 can be a roller. The moving part 16 can facilitate the movement of the mobile frame 1. A first vertical frame 12 is provided on the left base, and a second vertical frame 13 is provided on the right base. The first vertical frame 12 and the second vertical frame 13 have the same structure. A vertical movement space for the sampling component 2 to move up and down is formed between the first vertical frame 12 and the second vertical frame 13. A top mounting seat 14 is provided at the top of the first vertical frame 12 and the second vertical frame 13. The top of the first vertical frame 12 and the second vertical frame 13 are connected by the top mounting seat 14. Side support rods are also provided on the left base and the right base, and the first vertical frame 12 and the second vertical frame 13 are supported by the side support rods.

[0029] In this embodiment, the sampling assembly 2 includes a lifting platform 21 and a sampling tube 25. The lifting platform 21 is horizontally arranged. A left sliding seat 22 and a right sliding seat 23 are arranged on opposite sides of the lifting platform 21. The left sliding seat 22 is slidably connected to the first vertical frame 12, and the right sliding seat 23 is slidably connected to the second vertical frame 13. The heights of the left sliding seat 22 and the right sliding seat 23 are kept consistent. When the left sliding seat 22 and the right sliding seat 23 move up and down along the first vertical frame 12 and the second vertical frame 13 respectively, the lifting platform 21 can be moved up and down. A lifting drive unit 15 is provided on the seat 14. The lifting drive unit 15 can be a cylinder mechanism. The lifting platform 21 is connected to the piston rod of the cylinder. In this way, the lifting platform 21 can move up and down through the drive of the lifting drive unit 15. The left sliding seat 22 and the first vertical frame 12 and the right sliding seat 23 and the second vertical frame 13 limit the movement of the lifting platform 21, so that the lifting platform 21 can only move up and down along the direction of the first vertical frame 12 and the second vertical frame 13, so that the lifting platform 21 moves in a direction perpendicular to the road surface during use.

[0030] In this embodiment, a rotation drive unit 24 is provided on the lifting platform 21. The rotation drive unit 24 can be a drive motor. The sampling barrel 25 is connected to the output shaft of the drive motor. During the sampling process, the lifting platform 21 is driven by the lifting drive unit 15, so that the lifting platform 21, the drive motor and the sampling barrel 25 move downward. During this process, the rotation drive unit 24 works synchronously, so that the sampling barrel 25 rotates, and the sampling barrel 25 rotates to cut into the inside of the roadbed for cutting and sampling. When the sampling is completed, the lifting platform 21, the drive motor and the sampling barrel 25 move upward through the lifting drive unit 15, and the inspection personnel take out the cut roadbed sample and then perform subsequent inspection operations.

[0031] In this embodiment, in order to prevent the roadbed on the side of the sampling hole from being damaged, a protective component 3 is further provided on the base 11. The protective component 3 includes a left protective plate 31 and a right protective plate 32 arranged opposite to each other. The left protective plate 31 and the right protective plate 32 have the same structure. The inner side surfaces of the left protective plate 31 and the right protective plate 32 are both semicircular. The left protective plate 31 and the right protective plate 32 are both arranged in the open cavity 111. A circular sampling cavity is formed between the left protective plate 31 and the right protective plate 32. During use, the sampling tube 25 moves downward to cut into the roadbed from the sampling cavity, while the left protective plate 31 and the right protective plate 32 protect the roadbed around the sampling cut.

[0032] The utility model provides a device for improving the accuracy of on-site compaction detection, including a mobile frame 1, a sampling assembly 2 and a protective assembly 3. The mobile frame 1 includes a base 11 and a frame body arranged on the base 11. The frame body includes a first vertical frame 12 and a second vertical frame 13 arranged relatively. The tops of the first vertical frame 12 and the second vertical frame 13 are provided with a top mounting seat 14. A vertical motion space for the sampling assembly 2 to move up and down is formed between the first vertical frame 12 and the second vertical frame 13. The sampling assembly 2 includes a lifting platform 21 and a sampling cylinder 25. The lifting platform 21 is slidably connected to the first vertical frame through a left sliding seat 22 and a right sliding seat 23. 12 and the second vertical frame 13, a rotation drive unit 24 is provided on the lifting platform 21, and the sampling barrel 25 is driven by the rotation drive unit 24 to rotate. In this way, during the sampling process, the lifting platform 21 is driven by the lifting drive unit 15, so that the lifting platform 21, the drive motor and the sampling barrel 25 move downward. During this process, the rotation drive unit 24 works synchronously, so that the sampling barrel 25 rotates and cuts into the inside of the roadbed for cutting and sampling. At the same time, during the sampling process, the left protective plate and the right protective plate are located on both sides of the sampling barrel 25 to protect the roadbed around the sampling pit to prevent the roadbed from falling into the sampling pit.

[0033] In this embodiment, preferably, the base 11 forms side connecting beams 112 on opposite sides of the open cavity 111, the distance between the two side connecting beams 112 is greater than the size of the sampling cavity, the two side connecting beams 112 are parallel to each other, and the two ends of the side connecting beams 112 are fixedly connected to the left base 11 and the right base 11 respectively.

[0034] In this embodiment, preferably, a left installation cavity and a right installation cavity are formed on opposite sides of the open cavity 111 respectively. A left driving unit 33 is provided in the left installation cavity, and the left protective plate 31 is connected to the left driving unit 33. The left protective plate 31 can be driven to move along the side connecting beam 112 through the left driving unit 33. A right driving unit 34 is provided in the right installation cavity, and the right protective plate 32 is connected to the right driving unit 34. The right protective plate 32 can be driven to move along the side connecting beam 112 through the right driving unit 34. In this way, during use, the left driving unit 33 and the right driving unit 34 can be operated as needed to drive the left protective plate 31 and the right protective plate 32 to adjust the size of the sampling cavity.

[0035] In this embodiment, preferably, an upper horizontal slide groove 113 is provided on the side connecting beam 112, and upper sliding blocks 35 are respectively provided on both sides of the left protective plate 31 and the right protective plate 32, and the upper sliding blocks 35 are slidably connected in the upper horizontal slide groove 113. In this way, when the left protective plate 31 and the right protective plate 32 are driven to move in the opening cavity 111, the upper sliding block 35 and the upper horizontal slide groove 113 restrict the movement of the left protective plate 31 and the right protective plate 32, so that the left protective plate 31 and the right protective plate 32 can only move along the direction of the upper horizontal slide groove 113.

[0036] In this embodiment, preferably, it also includes a movable protective plate 37. The bottom of the left protective plate 31 and the right protective plate 32 are both provided with a bottom opening 36 opening facing downward. The movable protective plate 37 is movably connected in the bottom opening 36. The movable protective plate 37 includes a bottom contact plate 371 in contact with the road surface and a movable connecting plate 372 provided on the bottom contact plate 371. The movable connecting plate 372 is movably connected in the bottom opening 36. The movable connecting plate 372 moves in the bottom opening 36, so that the distance between the bottom contact plate 371 and the road surface can be adjusted. In this way, when the sampling operation is not performed, the movable connecting plate 372 is stored in the bottom opening 36. In this way, there is a certain distance between the bottom contact plate 371 and the road surface, which is convenient for the movement of the movable frame 1. When the sampling operation is performed, the movable connecting plate 372 extends from the bottom opening 36. At this time, the bottom contact plate 371 is pressed and contacted with the road surface, so that the bottom contact plate 371 protects the road surface around the sampling port.

[0037] In this embodiment, preferably, a lower sliding limiting groove 114 is provided on the side connecting beam 112, and the lower sliding limiting groove 114 includes a first horizontal section 115, an inclined section 116 and a second horizontal section 117 connected to each other. The first horizontal section 115 and the second horizontal section 117 are parallel to the upper horizontal sliding groove 113, and the position of the first horizontal section 115 is lower than the position of the upper horizontal sliding groove 113, and the position of the second horizontal section 117 is lower than the position of the first horizontal section 115. Lower sliding blocks 38 are provided on opposite sides of the movable protective plate 37. The lower sliding blocks 38 are provided on opposite sides of the bottom contact plate 371. The lower sliding blocks 38 are respectively slidably limited in the lower sliding limiting groove 114. In this way, when the sampling operation is not performed, the distance between the left protective plate 31 and the right protective plate 32 is large. At this time, the lower sliding block 38 is in the In the first horizontal section 115, the movable connecting plate 372 is stored in the bottom opening 36, so that there is a certain distance between the bottom contact plate 371 and the road surface, which facilitates the movement of the mobile frame 1; when sampling operation is required, the left driving unit 33 drives the left protective plate 31 to move along the side connecting beam 112 toward the center position of the bottom opening 36, and the right driving unit 34 drives the right protective plate 32 to move along the side connecting beam 112 toward the center position of the bottom opening 36, so that the distance between the left protective plate 31 and the right protective plate 32 gradually decreases. During this process, the lower sliding block 38 moves from the first horizontal section 115 and the inclined section 116 to the second horizontal section 117, so that the movable connecting plate 372 extends from the bottom opening 36, and the bottom contact plate 371 moves to a position in contact with the road surface.

[0038] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for improving the accuracy of on-site compaction detection, characterized in that: include: A mobile frame, the mobile frame comprising a base and a frame body disposed on the base, the bottom of the base being provided with a moving member, the frame body comprising a first vertical frame and a second vertical frame disposed opposite to each other, the tops of the first vertical frame and the second vertical frame being provided with a top mounting seat; A sampling assembly, comprising a lifting platform and a sampling cylinder, wherein a left sliding seat and a right sliding seat are respectively provided on opposite sides of the lifting platform, wherein the left sliding seat is slidably connected to the first vertical frame, and the right sliding seat is slidably connected to the second vertical frame, wherein a rotation drive unit is provided on the lifting platform, and the sampling cylinder is connected to the rotation drive unit, and a lifting drive unit is provided on the top mounting seat, and the lifting platform is driven by the lifting drive unit to move up and down along the first vertical frame and the second vertical frame; A protective assembly, the protective assembly includes a left protective plate and a right protective plate arranged opposite to each other, an open cavity is provided on the base, the left protective plate and the right protective plate are located in the open cavity, and a sampling cavity for the sampling tube to pass through is formed between the left protective plate and the right protective plate.

2. The device for improving on-site compaction detection accuracy according to claim 1, characterized in that: The base forms side connecting beams on opposite sides of the open cavity, and the distance between the two side connecting beams is greater than the size of the sampling cavity.

3. The device for improving on-site compaction detection accuracy according to claim 1, characterized in that: A left installation cavity and a right installation cavity are respectively provided on opposite sides of the opening cavity. A left drive unit is provided in the left installation cavity. The left protective plate is connected to the left drive unit.

4. The device for improving on-site compaction detection accuracy according to claim 3, characterized in that: A right driving unit is arranged in the right mounting cavity, and the right protective plate is connected to the right driving unit.

5. The device for improving on-site compaction detection accuracy according to claim 2, characterized in that: An upper horizontal slide groove is provided on the side connecting beam, and upper sliding blocks are respectively provided at both ends of the left protective plate and the right protective plate. The upper sliding blocks are slidably connected in the upper horizontal slide groove.

6. The device for improving on-site compaction detection accuracy according to claim 5, characterized in that: It also includes a movable protective plate. The bottoms of the left protective plate and the right protective plate are both provided with bottom openings opening downwards, and the upper ends of the movable protective plates are movably connected in the bottom openings.

7. The device for improving on-site compaction detection accuracy according to claim 6, characterized in that: The side connecting beam is provided with a lower sliding limiting groove, and the lower sliding limiting groove includes a first horizontal section, an inclined end and a second horizontal section that are connected.

8. The device for improving on-site compaction detection accuracy according to claim 7, characterized in that: Lower sliding blocks are provided on opposite sides of the movable protective plate, and the lower sliding blocks are respectively slidably restricted in the lower sliding restriction grooves.

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