In-hole deep dynamic compaction device for collapsible loess foundation

Abstract

The in-hole deep layer dynamic compaction device for the collapsible loess foundation comprises a supporting table, a stamping rod penetrates through the middle of the inner side of the supporting table, a stamping base is fixedly installed at the bottom of the stamping rod, a top plate is fixedly installed at the top end of the stamping rod, and a guide structure is arranged on one side of the top end of the top plate. The combined use of a first motor, a half gear and teeth facilitates the subsequent longitudinal movement of a top plate, and then the subsequent longitudinal lifting of a stamping seat can be conveniently realized, so that the foundation is tamped, and when the first motor works, the half gear rotates along with the first motor; and then longitudinal movement of a connecting plate can be achieved through meshing connection of a half gear and teeth, then movement of a top plate can be achieved through longitudinal movement of the connecting plate, follow-up lifting of a stamping seat is facilitated, so that tamping treatment is conducted on the ground, and a simple buffering effect can be achieved through cooperation with a reset spring.

Description

Technical Field

[0001] The utility model relates to the field of a deep-layer dynamic compaction device in a hole for a collapsible loess foundation, in particular to a deep-layer dynamic compaction device in a hole for a collapsible loess foundation. Background Art

[0002] In the field of foundation engineering, it is usually necessary to compact the ground to improve the strength of the foundation, and thus a ground compaction device for foundation engineering is needed during the construction of the foundation engineering.

[0003] When the collapsible loess foundation is above the groundwater level, has a moisture content of 10% to 22% and an average moisture content lower than the plastic limit moisture content of 1% to 3%, the appropriate treatment depth is 3.0 to 6.0 m, and should not exceed 8.0 m. It is not suitable to use when the vibration has a greater impact on the surrounding buildings. However, when the deep-layer tamping device in the hole is currently used for collapsible loess foundation, most of them are larger devices to compact the ground, and the vibration amplitude caused is relatively large, which has a greater impact on the surrounding buildings. The large amplitude will affect the subsequent construction treatment of the foundation. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a deep-layer compaction device for collapsible loess foundation, which can solve the problem of collapsible loess foundation above the groundwater level, with a moisture content of 10% to 22% and an average moisture content lower than the plastic limit moisture content of 1% to 3%. The suitable treatment depth is 3.0 to 6.0 m, and should not exceed 8.0 m. It is not suitable to use when the vibration has a greater impact on the surrounding buildings. However, when the current deep-layer compaction device for collapsible loess foundation is used, most of them are larger devices to compact the ground, and the vibration amplitude caused is relatively large, which has a greater impact on the surrounding buildings. The large amplitude will affect the subsequent technical problem of construction treatment of the foundation.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a deep-layer tamping device in a hole for collapsible loess foundation, comprising a support platform, a punching rod passing through the middle inner part of the support platform, and a punching seat is fixedly installed on the bottom of the punching rod, a top plate is fixedly installed on the top end of the punching rod, and a guide structure is provided on one side of the top end of the top plate, a return spring is provided on the inner side of the guide structure, a connecting plate is fixedly installed on one side of the bottom of the top plate, and teeth are fixedly installed on the side wall of the connecting plate, a mounting seat is welded to one side of the top end of the support platform, and a first motor is fixedly installed on the side wall of the mounting seat, the output end of the first motor is connected to a rotating shaft, and the other end of the rotating shaft is fixedly connected to a half gear.

[0006] As a preferred technical solution of the utility model, the guide structure includes a connecting rod, a connecting block and a fixed seat. The connecting rod is fixedly installed on one side of the top end of the top plate, and the other end of the connecting rod is fixedly installed with a connecting block, and the outer surface of the connecting rod is sleeved with a fixed seat.

[0007] As a preferred technical solution of the utility model, a lifting rod is welded and connected at the bottom corner of the support platform, and a supporting leg is sleeved on the outer side of the bottom of the lifting rod.

[0008] As a preferred technical solution of the utility model, a second motor is arranged at the bottom of the inner cavity of the support leg, and a threaded rod is connected to the output end of the second motor, and a guide block is fixedly installed on the bottom side wall of the lifting rod.

[0009] As a preferred technical solution of the utility model, the connecting rod is slidably connected to the fixing seat through the connecting block, and the connecting rod and the connecting block are vertically distributed.

[0010] As a preferred technical solution of the present utility model, the half gears are meshingly connected with the teeth, and the half gears are symmetrically distributed along the vertical center line of the support platform.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. The combination of the first motor, the half gear and the teeth can facilitate the subsequent longitudinal movement of the top plate, and then facilitate the subsequent longitudinal lifting of the stamping seat, so as to compact the foundation. When the first motor is working, the half gear will rotate accordingly, and then the longitudinal movement of the connecting plate can be realized by the meshing connection between the half gear and the teeth, and then the longitudinal movement of the connecting plate can realize the movement of the top plate, which is convenient for the subsequent lifting of the stamping seat, so as to compact the ground, and the reset spring can play a simple buffering effect;

[0013] 2. By using the connecting rod, connecting block and fixed seat in combination, the stability of the top plate during longitudinal movement can be improved, thereby preventing the stamping seat from shifting in position during the subsequent lifting process. When the top plate moves longitudinally, the connecting rod will be driven to move longitudinally, and the longitudinal movement of the connecting rod will drive the connecting block to slide in the inner cavity of the fixed seat, thereby assisting the top plate in longitudinal lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the deep-layer dynamic compaction device in the hole for collapsible loess foundation of the utility model;

[0015] Figure 2This is a schematic diagram of the structure of the deep-layer compaction device in the hole for collapsible loess foundation of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the internal structure of the fixing seat of the deep-layer dynamic compaction device in the hole for collapsible loess foundation of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the support legs of the in-hole deep layer compaction device for collapsible loess foundation of the utility model;

[0018] Among them: 1. Support platform; 2. Punching rod; 3. Punching seat; 4. Top plate; 5. Connecting rod; 6. Connecting block; 7. Reset spring; 8. Fixed seat; 9. Connecting plate; 10. Gear; 11. Mounting seat; 12. First motor; 13. Rotating shaft; 14. Half gear; 15. Lifting rod; 16. Support leg; 17. Second motor; 18. Threaded rod; 19. Guide block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1 , Figure 2 and Figure 4 As shown, the utility model provides a deep-layer tamping device for collapsible loess foundation, comprising a support platform 1, a punching rod 2 is passed through the middle of the inner side of the support platform 1, and a punching seat 3 is fixedly installed at the bottom of the punching rod 2, a top plate 4 is fixedly installed at the top of the punching rod 2, and a guide structure is arranged on one side of the top of the top plate 4, a return spring 7 is arranged on the inner side of the guide structure, a connecting plate 9 is fixedly installed on one side of the bottom of the top plate 4, and teeth 10 are fixedly installed on the side wall of the connecting plate 9, and a welding connecting plate 9 is arranged on one side of the top of the support platform 1. A mounting base 11 is connected, and a first motor 12 is fixedly installed on the side wall of the mounting base 11, a rotating shaft 13 is connected to the output end of the first motor 12, and a half gear 14 is fixedly connected to the other end of the rotating shaft 13, a lifting rod 15 is welded and connected at the bottom corner of the support platform 1, and a supporting leg 16 is sleeved on the bottom outer side of the lifting rod 15, a second motor 17 is arranged at the bottom of the inner cavity of the supporting leg 16, and a threaded rod 18 is connected to the output end of the second motor 17, and a guide block 19 is fixedly installed on the bottom side wall of the lifting rod 15;

[0022] When the entire device is moved to the specified position, the second motor 17 works to rotate the threaded rod 18 connected to its output end. Since the threaded rod 18 is threadedly connected to the lifting rod 15 through the thread groove, the height of the lifting rod 15 can be adjusted when the threaded rod 18 rotates. Then, the lifting rod 15 drives the guide blocks 19 symmetrically arranged on both sides to slide along the inner side walls of the supporting legs 16, and then the guide blocks 19 are used to improve the stability of the lifting rod 15 during the longitudinal movement. At the same time, the longitudinal movement of the lifting rod 15 can adjust the height of the support platform 1.

[0023] As a further implementation of this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a punching rod 2 is passed through the middle of the inner side of the support platform 1, and a punching seat 3 is fixedly installed at the bottom of the punching rod 2, a top plate 4 is fixedly installed at the top of the punching rod 2, and a guide structure is provided on one side of the top of the top plate 4, a connecting rod 5 is fixedly installed on one side of the top of the top plate 4, and a connecting block 6 is fixedly installed on the other end of the connecting rod 5, the connecting rod 5 is slidably connected with the fixed seat 8 through the connecting block 6, and the connecting rod 5 and the connecting block 6 are vertically distributed, and the outer surface of the connecting rod 5 is sleeved with a fixed seat 8, and the connecting rod 5, the connecting block 6 and the fixed seat 8 constitutes a guide structure, a return spring 7 is arranged on the inner side of the guide structure, a connecting plate 9 is fixedly installed on one side of the bottom of the top plate 4, and a tooth 10 is fixedly installed on the side wall of the connecting plate 9, a mounting seat 11 is welded and connected to one side of the top of the support platform 1, and a first motor 12 is fixedly installed on the side wall of the mounting seat 11, an output end of the first motor 12 is connected to a rotating shaft 13, and the other end of the rotating shaft 13 is fixedly connected to a half gear 14, the half gear 14 is meshed and connected with the tooth 10, and the half gear 14 is symmetrically distributed along the vertical center line of the support platform 1;

[0024] After the height adjustment of the support platform 1 is completed, the first motor 12 works to rotate the shaft 13 connected to its output end, and then the shaft 13 drives the half gear 14 to rotate accordingly. Since the half gear 14 is meshed with the teeth 10, the longitudinal movement of the connecting plate 9 can be realized when the half gear 14 rotates, and then the longitudinal movement of the connecting plate 9 realizes the longitudinal movement of the top plate 4. Then, when the top plate 4 moves longitudinally, it will drive the punching rod 2 to move longitudinally. The longitudinal movement of the punching rod 2 can realize the longitudinal movement of the punching seat 3, and when the half gear 14 is engaged with the teeth 10, the longitudinal movement of the connecting plate 9 can realize the longitudinal movement of the top plate 4. When separated from the teeth 10, the stamping seat 3 can be reset, so that the foundation can be compacted. At the same time, when the top plate 4 moves longitudinally, it will drive the connecting rod 5 to pull the connecting block 6, and then the connecting block 6 slides in the inner cavity of the fixed seat 8, so as to improve the stability of the top plate 4 during the longitudinal movement. At the same time, when the connecting block 6 moves longitudinally, it will drive the reset spring 7 to deform accordingly, and then the reverse force generated by the deformation of the reset spring 7 can assist the subsequent top plate 4 to drive the stamping seat 3 to reset, so as to facilitate the subsequent compaction of the collapsible loess foundation;

[0025] Specific working principle:

[0026] When in use, the entire device is moved to a specified position, and then the second motor 17 works to rotate the threaded rod 18. When the threaded rod 18 rotates, the height of the lifting rod 15 can be adjusted. Then the lifting rod 15 drives the guide blocks 19 symmetrically arranged on both sides to slide along the inner side walls of the supporting legs 16, and then the guide blocks 19 are used to improve the stability of the lifting rod 15 during the longitudinal movement. At the same time, the longitudinal movement of the lifting rod 15 can adjust the height of the support platform 1. After the height of the support platform 1 is adjusted, the first motor 12 works to rotate the rotating shaft 13 connected to its output end, and then the rotating shaft 13 drives the half gear 14 to rotate. Since the half gear 14 is meshed with the teeth 10, the longitudinal movement of the connecting plate 9 can be achieved when the half gear 14 rotates. When the top plate 4 moves longitudinally, the connecting plate 9 will move longitudinally to realize the longitudinal movement of the top plate 4. When the top plate 4 moves longitudinally, the stamping rod 2 will be driven to move longitudinally. The longitudinal movement of the stamping rod 2 can be used to realize the longitudinal movement of the stamping seat 3. When the half gear 14 is separated from the tooth 10, the stamping seat 3 can be reset, so that the foundation can be compacted. At the same time, when the top plate 4 moves longitudinally, the connecting rod 5 will be driven to pull the connecting block 6, and then the connecting block 6 will slide in the inner cavity of the fixed seat 8 to improve the stability of the top plate 4 during the longitudinal movement. At the same time, when the connecting block 6 moves longitudinally, the reset spring 7 will be driven to deform accordingly. Combined with the reverse force generated by the deformation of the reset spring 7, the subsequent top plate 4 can be assisted to drive the stamping seat 3 to reset, so as to facilitate the subsequent better compaction of the collapsible loess foundation.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A deep-layer compaction device for collapsible loess foundation, comprising a support platform (1), characterized in that: A punching rod (2) passes through the middle of the inner side of the support platform (1), and a punching seat (3) is fixedly installed at the bottom of the punching rod (2), a top plate (4) is fixedly installed at the top of the punching rod (2), and a guide structure is provided on one side of the top of the top plate (4), and a return spring (7) is provided on the inner side of the guide structure, a connecting plate (9) is fixedly installed on one side of the bottom of the top plate (4), and teeth (10) are fixedly installed on the side wall of the connecting plate (9), a mounting seat (11) is welded to one side of the top of the support platform (1), and a first motor (12) is fixedly installed on the side wall of the mounting seat (11), an output end of the first motor (12) is connected to a rotating shaft (13), and the other end of the rotating shaft (13) is fixedly connected to a half gear (14).

2. The deep layer compaction device for collapsible loess foundation according to claim 1 is characterized by: The guide structure comprises a connecting rod (5), a connecting block (6) and a fixing seat (8); the connecting rod (5) is fixedly mounted on one side of the top end of the top plate (4); the connecting block (6) is fixedly mounted on the other end of the connecting rod (5); and the fixing seat (8) is sleeved on the outer surface of the connecting rod (5).

3. The deep layer compaction device for collapsible loess foundation according to claim 1 is characterized by: A lifting rod (15) is welded to a bottom corner of the support platform (1), and a supporting leg (16) is sleeved on the outer side of the bottom of the lifting rod (15).

4. The deep layer compaction device for collapsible loess foundation according to claim 3 is characterized by: A second motor (17) is provided at the bottom of the inner cavity of the support leg (16), and a threaded rod (18) is connected to the output end of the second motor (17). A guide block (19) is fixedly mounted on the bottom side wall of the lifting rod (15).

5. The deep layer compaction device for collapsible loess foundation according to claim 2 is characterized by: The connecting rod (5) is slidably connected to the fixing seat (8) via the connecting block (6), and the connecting rod (5) and the connecting block (6) are vertically distributed.

6. The deep layer compaction device for collapsible loess foundation according to claim 3 is characterized by: The half gears (14) are meshingly connected with the teeth (10), and the half gears (14) are symmetrically distributed along the vertical center line of the support platform (1).

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