Dynamic compaction lap joint surface compaction degree detection device

Abstract

The utility model discloses a dynamic compaction lap joint surface compaction degree detection device which comprises a shell, a first cavity and a second cavity are arranged in the shell in parallel, a first connecting rod is arranged in the first cavity in a sliding mode, a second connecting rod is arranged in the second cavity in a sliding mode, and a gear is arranged between the first connecting rod and the second connecting rod in a transmission mode. The bottom end of the second connecting rod extends out of the shell, an air pressure type detector is arranged at the bottom end of the first cavity, the locking piece comprises a plurality of stopping wheels arranged in the circumferential direction, the outer peripheries of the stopping wheels are made of damping materials, and the stopping wheels are arranged in a rotatable mode so as to be switched between a vertical rolling state and a transverse stopping state. Compared with the prior art, the resistance of the second connecting rod can be adjusted through rotation of the stop wheel, and higher use reliability and usability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation compaction degree detection, in particular to a device for detecting the compaction degree of a strongly compacted overlapping surface. Background Art

[0002] During dynamic compaction construction, due to the large drop distance and weight of the rammer, the ramming energy can generate a large impact force and compression wave, causing the soil particles to rearrange and form a denser structure. However, due to the diffusion and transmission of the ramming energy, the effective impact depth of each ramming is limited. Therefore, in order to ensure the integrity and continuity of the compaction effect, a certain overlap surface needs to be set between the two rammings. In addition, the compaction degree of the overlap surface needs to be tested in time to ensure the quality of the dynamic compaction operation.

[0003] At present, a Chinese patent with the announcement number CN216275576U discloses a portable foundation compaction detection device, including a device body, a first inner cavity and a second inner cavity are provided in the device body, a first moving rod is slidably arranged in the first inner cavity, a second moving rod is slidably arranged in the second inner cavity, and a linkage gear is meshed between the two moving rods. In addition, a detector is arranged at the bottom of the first inner cavity. When in use, the bottom end of the second moving rod abuts against the overlap surface, and then the device body is pressed down. Under the transmission of the linkage gear, the first moving rod is pressed down and the detector performs quantitative detection of the compaction degree through the change of air pressure. However, there is no limit device on the second moving rod, and the second moving rod is limited only by the friction between the damping ring and the second moving rod; when the friction force of the damping ring is too large, it is easy to cause the displacement of the second moving rod; when the friction force of the damping ring is too small, it is easy for the second moving rod to fall out at will. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a device for detecting the compaction degree of a strongly compacted overlapped surface.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A device for detecting the compaction degree of a lap joint surface, comprising a shell, a first cavity and a second cavity being arranged in parallel in the shell, a first connecting rod being slidably arranged in the first cavity, a second connecting rod being slidably arranged in the second cavity, a gear being arranged for transmission between the first connecting rod and the second connecting rod, the bottom end of the second connecting rod extending out of the shell, a pneumatic detector being arranged at the bottom end of the first cavity, sliding openings being provided at both ends of the second cavity, both ends of the second connecting rod being slidably adapted to the two sliding openings respectively, a locking member being arranged at at least one of the sliding openings, the locking member comprising a plurality of stop wheels arranged along the circumferential direction, the outer periphery of the stop wheel being made of damping material, and the stop wheel being configured to be rotatably arranged to switch between a vertical rolling state and a lateral stop state.

[0007] The stop wheel is further configured to be movably arranged in the radial direction, and the stop wheel can be moved to abut against and deform to fit the side wall of the second connecting rod.

[0008] A slideway is axially arranged on the side wall of the second connecting rod, the slideway corresponds to the stop wheel, and the surface finish of the slideway is greater than the surface finish of the remaining part of the second connecting rod.

[0009] The locking member further comprises an annular mounting seat, on which a sliding block is slidably arranged in a radial direction, and the stop wheel is arranged on the sliding block.

[0010] The stop wheel comprises a mounting plate and a clamping seat rotatably arranged on the mounting plate, and a wheel body is rotatably arranged in the clamping seat.

[0011] A gear ring is rotatably arranged on the annular mounting seat, and a plurality of internal teeth are circumferentially arranged in the annular mounting seat. The plurality of internal teeth correspond one-to-one with the plurality of sliding blocks, and the internal teeth are meshed with the gear ring. A toothed structure is arranged on the side wall of the sliding block, and the internal teeth are meshed with the toothed structure.

[0012] A sliding groove is provided on the side wall of the annular mounting seat, an adjusting rod is provided on the side wall of the gear ring, the adjusting rod is adapted to slide in the sliding groove, and a locking piece for limiting the relative position of the adjusting rod is also provided on the annular mounting seat.

[0013] The locking member comprises a locking frame which is elastically arranged along the axial direction, and the locking frame is provided with two locking grooves, and the adjusting rod can be inserted into one of the locking grooves.

[0014] The beneficial effects of the utility model are as follows: when the second connecting rod needs to move, the stop wheel can be rotated and adjusted to a vertical rolling state, at which time the stop wheel can roll along with the movement of the second connecting rod, and the movement of the second connecting rod is not easily affected by resistance; when the second connecting rod is not expected to move, the stop wheel can be rotated and adjusted to a horizontal stop state, at which time the stop wheel is not easy to roll, so the resistance generated by the damping material on its outer periphery can stably keep the second connecting rod in the shell, and the second connecting rod is not easy to fall out at will. Compared with the prior art, the utility model realizes adjustable resistance to the second connecting rod through the rotation of the stop wheel, and has higher reliability and ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2 for Figure 1 A magnified view of part A;

[0017] Figure 3 is a top view schematic diagram of a locking member;

[0018] Figure 4 It is a structural schematic diagram of the chute.

[0019] Figure numerals: 1. shell; 2. first cavity; 3. second cavity; 4. first connecting rod; 5. second connecting rod; 6. gear; 7. pneumatic detector; 8. sliding mouth; 9. locking member; 10. stop wheel; 11. slideway; 12. annular mounting seat; 13. slider; 14. mounting plate; 15. clamping seat; 16. wheel body; 17. gear ring; 18. inner teeth; 19. slide groove; 20. adjusting rod; 21. locking member; 22. locking frame; 23. locking groove. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 4As shown, a device for detecting the compaction degree of a lap joint surface by strong compaction includes a shell 1, in which a first cavity 2 and a second cavity 3 are arranged in parallel. The first cavity 2 is open at the top; the upper and lower ends of the second cavity 3 are both open, and the two openings are constructed as sliding openings 8. Specifically, a pneumatic detector 7 is arranged at the bottom of the first cavity 2, and a first connecting rod 4 is also slidably arranged in the first cavity 2. The first connecting rod 4 is configured to cause a change in the air pressure at the bottom end of the first cavity 2 when sliding toward the side of the pneumatic detector 7, so that the air pressure detector can monitor the air pressure change value; a second connecting rod 5 is slidably arranged in the second cavity 3, and the two ends of the second connecting rod 5 are respectively adapted in the two sliding openings 8. In addition, a gear 6 is rotatably arranged in the shell 1, and the first connecting rod 4 and the second connecting rod 5 are both engaged with the gear 6.

[0022] When in use, the bottom end of the second connecting rod 5 abuts against the overlap surface, and then the shell 1 is pressed down. Under the transmission of the gear 6, the first connecting rod 4 is pressed down and the detector performs quantitative detection of the compaction degree through the change of air pressure.

[0023] In order to facilitate the movement or retention of the second connecting rod 5 in the housing 1, a locking member 9 is provided at at least one sliding opening 8 of the present disclosure. For example, the locking member 9 includes a plurality of stop wheels 10 arranged along the circumferential direction, and the stop wheels 10 are also configured to be rotatable along an axis substantially perpendicular to the moving axis of the second connecting rod 5. Preferably, the outer periphery of the stop wheel 10 is also made of a damping material, such as a rubber material.

[0024] It can be understood that the stop wheel 10 has at least a vertical rolling state and a horizontal stop state by rotating the stop wheel 10. In the vertical rolling state, the stop wheel 10 can roll along with the movement of the second connecting rod 5, and the movement of the second connecting rod 5 is not easily affected by resistance; in the horizontal stop state, the stop wheel 10 can, for example, rotate approximately 90 degrees relative to the vertical rolling state, and at this time, the stop wheel 10 is not easy to roll, so the resistance generated by the damping material on its outer periphery can stably keep the second connecting rod 5 in the housing 1, and the second connecting rod 5 is not easy to fall out at will.

[0025] In some embodiments, the locking member 9 further includes an annular mounting seat 12 engaged at the sliding opening 8, and a plurality of sliders 13 are circumferentially arranged on the annular mounting seat 12, and the plurality of stop wheels 10 are arranged one-to-one on the plurality of sliders 13, and the sliders 13 are also configured to be able to slide in the radial direction. In addition, a gear ring 17 is rotatably arranged on the annular mounting seat 12, and a plurality of internal teeth 18 are circumferentially arranged inside the annular mounting seat 12, and the plurality of internal teeth 18 correspond one-to-one to the plurality of sliders 13. In more detail, a toothed structure is arranged on the side wall of the slider 13 facing the internal teeth 18, and the internal teeth 18 are meshingly arranged between the toothed structure and the gear ring 17.

[0026] Therefore, rotating the gear ring 17 can drive the plurality of inner teeth 18 to rotate, and then the slider 13 will slide toward the second connecting rod 5 driven by the inner teeth 18, thereby driving the stop wheel 10 to abut against the side wall of the second connecting rod 5. For example, when the stop wheel 10 is in a lateral stop state, the stop wheel 10 further abuts against the second connecting rod 5, and the damping portion of the stop wheel 10 will deform and fit against the side wall of the second connecting rod 5, thereby achieving a better damping locking effect.

[0027] For example, a slide groove 19 is provided on the side wall of the annular mounting seat 12, and the slide groove 19 is provided along the circumferential direction. An adjustment rod 20 is provided on the side wall of the gear ring 17 and extends into the slide groove 19, so that the adjustment rod 20 can slide along the slide groove 19, thereby driving the gear ring 17 to rotate as expected. In addition, a locking member 21 for limiting the relative position of the adjustment rod 20 is also provided on the annular mounting seat 12.

[0028] The locking member 21 may preferably include a locking frame 22 that can be elastically arranged along the axial direction, for example, a spring is arranged between the locking frame 22 and the annular mounting seat 12, and two locking grooves 23 are also arranged on the locking frame 22. For example, the adjustment rod 20 can be inserted into one of the locking grooves 23, and the two locking grooves 23 may preferably define the initial radial position and the farthest radial position of the slider 13. In the farthest radial position, the stop wheel 10 will be subjected to the greatest degree of deformation, so it is more suitable for the lateral stop state; in the initial radial position, the deformation degree of the stop wheel 10 is small, so it is more suitable for the vertical rolling state.

[0029] In some embodiments, the stop wheel 10 includes a mounting plate 14 disposed on the slider 13, a clamping seat 15 is rotatably disposed on the mounting plate 14, and a wheel body 16 is rotatably disposed in the clamping seat 15. Therefore, the wheel body 16 can be driven to switch between a lateral stop state and a vertical rolling state by rotating the clamping seat 15. For example, a damping structure can be used between the clamping seat 15 and the mounting plate 14 to keep the circumferential position of the clamping seat 15 constant after rotation, or a fastening bolt can be further provided on the mounting plate 14, and the circumferential position of the clamping seat 15 constant after rotation is achieved by tightening the clamping seat 15 with the fastening bolt.

[0030] In a preferred embodiment, a slideway 11 extending in the axial direction may also be configured on the side wall of the second connecting rod 5. Accordingly, the slideway 11 corresponds to the stop wheel 10. In addition, the slideway 11 is also configured to have a surface finish greater than the surface finish of the rest of the second connecting rod 5. In other words, the slideway 11 is smoothed. During the movement of the second moving rod, the wheel body 16 in the vertical rolling state will roll against the slideway 11, thereby further reducing the friction between the stop wheel 10 and the second connecting rod 5, and the second connecting rod 5 is easier to move for compaction detection operations.

[0031] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A device for detecting the compaction degree of a lap joint surface by compaction, comprising a shell (1), wherein a first cavity (2) and a second cavity (3) are arranged in parallel in the shell (1), a first connecting rod (4) is slidably arranged in the first cavity (2), a second connecting rod (5) is slidably arranged in the second cavity (3), a gear (6) is arranged between the first connecting rod (4) and the second connecting rod (5), the bottom end of the second connecting rod (5) protrudes from the shell (1), a pneumatic detector (7) is arranged at the bottom end of the first cavity (2), two ends of the second cavity (3) have sliding openings (8), and two ends of the second connecting rod (5) are slidably adapted to the two sliding openings (8), wherein: A locking member (9) is provided at at least one of the sliding openings (8), and the locking member (9) comprises a plurality of stop wheels (10) arranged along the circumference, the outer periphery of the stop wheel (10) is made of a damping material, and the stop wheel (10) is configured to be rotatable so as to switch between a vertical rolling state and a lateral stop state.

2. The device for detecting compaction degree of the lap joint surface according to claim 1 is characterized in that: The stop wheel (10) is also configured to be movable in the radial direction, and the stop wheel (10) can be moved to abut against and deform to fit the side wall of the second connecting rod (5).

3. The device for detecting compaction degree of the lap joint surface according to claim 1 is characterized in that: A slideway (11) is axially arranged on the side wall of the second connecting rod (5), the slideway (11) corresponds to the stop wheel (10), and the surface finish of the slideway (11) is greater than the surface finish of the rest of the second connecting rod (5).

4. The device for detecting compaction degree of the lap joint surface according to claim 2 is characterized in that: The locking member (9) further comprises an annular mounting seat (12), a slider (13) being radially slidably arranged on the annular mounting seat (12), and the stop wheel (10) being arranged on the slider (13).

5. The device for detecting compaction degree of the lap joint surface according to claim 2 or 4, characterized in that: The stop wheel (10) comprises a mounting plate (14) and a clamping seat (15) rotatably arranged on the mounting plate (14), and a wheel body (16) is rotatably arranged in the clamping seat (15).

6. The device for detecting compaction degree of the lap joint surface according to claim 4 is characterized in that: A gear ring (17) is rotatably arranged on the annular mounting seat (12), and a plurality of internal teeth (18) are circumferentially arranged inside the annular mounting seat (12), the plurality of internal teeth (18) correspond one-to-one to the plurality of sliders (13), the internal teeth (18) mesh with the gear ring (17), and a toothed structure is arranged on the side wall of the slider (13), and the internal teeth (18) mesh with the toothed structure.

7. The device for detecting compaction degree of the lap joint surface according to claim 6 is characterized in that: A sliding groove (19) is provided on the side wall of the annular mounting seat (12), an adjusting rod (20) is provided on the side wall of the gear ring (17), the adjusting rod (20) is adapted to slide in the sliding groove (19), and a locking member (21) for limiting the relative position of the adjusting rod (20) is also provided on the annular mounting seat (12).

8. The device for detecting compaction degree of the lap joint surface according to claim 7 is characterized in that: The locking member (21) comprises a locking frame (22) which is elastically arranged along the axial direction, and the locking frame (22) is provided with two locking grooves (23), and the adjusting rod (20) can be inserted into one of the locking grooves (23).

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