Tamping machine for building civil engineering

By incorporating an adjustable hammer height structure and a motor drive system into the rammer, the problem of uneven compaction under different soil properties was solved, achieving deeper soil compaction and improved foundation stability.

CN224133708UActive Publication Date: 2026-04-17刘经松
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
刘经松
Filing Date
2025-05-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing rammers used in civil engineering cannot adjust the lifting height of the rammer according to the soil properties of different areas, resulting in over-compaction or ineffective compaction of the soil, failing to meet the designed density standards, and affecting the stability and bearing capacity of the foundation.

Method used

A tamping machine for building construction was designed, comprising a pressure plate, casters, threaded rods, rocker arms, limit components, and a motor-driven traction system. The tamping machine can adjust the lifting height of the hammer. The height of the hammer is adjustable through the cooperation of the rocker arms and threaded rods, and the lifting and compaction actions of the hammer are controlled by the motor-driven traction line system.

Benefits of technology

This technology allows for adjusting the height of the tamping hammer according to soil properties, avoiding over-compaction, ensuring the soil reaches the designed density, and improving the stability and bearing capacity of the foundation.

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Abstract

The utility model relates to the technical field of ramming, and provides a ramming machine for building civil engineering, which comprises a bearing plate, the bottom of the bearing plate is rotatably connected with a plurality of universal wheels, the top of the bearing plate is communicated with a fixed pipe, an upper notch shell is movably embedded in the inner surface of the fixed pipe, one side of the upper notch shell is fixedly connected with an internal thread block, and the other side of the upper notch shell is fixedly connected with an external thread block. And the inner surface of the inner threaded block is in threaded connection with a threaded rod, the bottom of the threaded rod is rotationally connected to the top of the bearing plate, and the top of the threaded rod is fixedly connected with a rocker. The device is provided with a lifting height adjustable structure, in building civil construction, soil properties in different areas are possibly different, soil structure damage caused by excessive tamping is avoided, soil can be effectively compacted, the designed compactness standard is achieved, and the lifting height of the tamping machine can be adjusted to adjust the lifting height of the tamping machine. And the rammer impacts the ground at a proper speed and force, so that the compaction of deeper soil is realized, and the stability and the bearing capacity of the foundation are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of tamping technology, and in particular to a tamping machine for building construction. Background Technology

[0002] The main function of a rammer in civil engineering is to compact fill materials such as soil, lime-soil, and gravel to improve the bearing capacity and stability of the foundation. Through mechanical impact or vibration, soil particles are rearranged, and porosity is reduced, thereby increasing soil density. This helps improve the bearing capacity of the foundation, enabling it to withstand the weight of buildings and other structures, reducing the possibility of foundation settlement and uneven settlement. The foundation compacted by a rammer has significantly improved strength, better resisting the loads transmitted from buildings, and ensuring the stability and safety of the buildings.

[0003] However, existing technologies, such as Chinese Publication No. CN219930933U, "A Rammer for Building Construction," disclose a rammer for building construction. This rammer includes a rammer body, a vibrating part fixedly connected to the lower surface of the rammer body, a compaction part fixedly connected to the bottom end of the vibrating part, an installation ring fixedly connected to the lower end of the outer surface of the rammer body, several columns fixedly connected to the lower surface of the installation ring, two arc-shaped rods fixedly connected to the inner side of each column, an installation plate fixedly connected to the upper end of the front of the inner cavity of each column, a servo motor fixedly connected to the upper surface of the installation plate, and a screw fixedly connected to the output end of the servo motor through the lower surface of the installation plate. This invention achieves good stability through the arrangement of columns, connecting rods, installation rings, screws, annular plates, support plates, movable columns, servo motors, sliders, and installation plates, solving the problem that existing rammers for building construction lack auxiliary support functions, leading to easy tipping during use and affecting practicality.

[0004] However, this device does not have an adjustable lifting height structure. In building construction, the soil properties in different areas may vary, leading to over-compaction that damages the soil structure or failure to effectively compact the soil, thus failing to meet the designed density standards. It is impossible to adjust the lifting height of the rammer to allow the hammer to impact the ground at the appropriate speed and force, thus failing to achieve deeper soil compaction and failing to guarantee the stability and bearing capacity of the foundation. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art, where the soil properties in different areas may vary during building construction, leading to over-compaction that damages the soil structure, or ineffective compaction that fails to meet the designed density standards, and the inability to adjust the lifting height of the rammer to allow the hammer to impact the ground at the appropriate speed and force, thus failing to achieve deeper soil compaction and ensuring the stability and bearing capacity of the foundation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tamping machine for building construction, comprising a pressure plate, a plurality of universal wheels rotatably connected to the bottom of the pressure plate, a fixed pipe connected to the top of the pressure plate, an upper groove shell movably embedded in the inner surface of the fixed pipe, an internal threaded block fixedly connected to one side of the upper groove shell, a threaded rod threadedly connected to the inner surface of the internal threaded block, the bottom of the threaded rod rotatably connected to the top of the pressure plate, a rocker arm fixedly connected to the top of the threaded rod, and a limit component provided on the outer surface of the upper groove shell. The height of the tamping block being lifted each time can be adjusted according to the soil properties. The rocker arm can drive the threaded rod to rotate on the top of the pressure plate, and the rotation of the threaded rod will drive the internal threaded block.

[0007] In a preferred embodiment, the limiting component includes a limiting block, one side of which is fixedly connected to the outer surface of the upper slot shell, and a limiting rod is movably embedded in the inner surface of the limiting block. The bottom of the limiting rod is fixedly connected to the top of the pressure plate. The limiting block on one side of the upper slot shell can only move along the axial direction of the limiting rod, so rotating the thread will drive the upper slot shell to move along the axial direction of the limiting rod.

[0008] In a preferred embodiment, the limiting component further includes two limiting strips. The inner sides of the two limiting strips are fixedly connected to the outer surface of the upper slot shell, and the outer surfaces of the two limiting strips are movably embedded in the inner surface of the fixed tube. The limiting structure can also be such that rotating the limiting strips will cause the upper slot shell and the limiting strips to rise vertically along the axial direction of the limiting strips.

[0009] In a preferred embodiment, a tamping block is provided inside the fixed tube, the tamping block has an inclined groove surface, and a force-bearing block is fixedly connected to the top of the tamping block. The inclined groove surface of the tamping block can help it rise vertically inside the fixed tube and the upper groove shell.

[0010] In a preferred embodiment, a lifting block is movably embedded inside the upper slot shell, and a connecting block is fixedly connected to one side of the lifting block. Under the action of gravity, the lifting block will descend by itself.

[0011] In a preferred embodiment, two grippers are rotatably connected to one side of the lifting block, and springs are fixedly connected to the inner sides of the two grippers. Under the chamfering action of the grippers and the elastic action of the springs, the grippers will clamp the force-bearing block of the tamping block.

[0012] In a preferred embodiment, a motor is fixedly connected to the top of the pressure plate, and a coil is fixedly connected to the output end of the motor. A traction line is wound around the outer surface of the coil. When the motor is powered on, it will drive the coil to rotate and drive the traction line to rotate and wind. Under the action of the roller and the conductor of the support rod, the traction line will drive the traction line to vertically pull up the tamping block and the connecting block.

[0013] In a preferred embodiment, the outer surface of the traction line is provided with rollers, and a support rod is rotatably connected inside the rollers. The bottom of the support rod is fixedly connected to the top of the pressure plate, and the end of the traction line away from the reel is fixedly connected to the top of the connecting block. Under the action of the rollers and the support rod, the traction line will vertically pull up the tamping block and the connecting block.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This utility model features a device with an adjustable lifting height. In civil engineering construction, soil properties may vary in different areas. This device avoids over-compaction that could damage the soil structure and effectively compacts the soil to achieve the designed density standard. By adjusting the lifting height of the rammer, the hammer can impact the ground at an appropriate speed and force, achieving deeper soil compaction and ensuring the stability and load-bearing capacity of the foundation. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a rammer for building construction provided by this utility model;

[0017] Figure 2 A schematic diagram of the rear structure of a rammer for building construction provided by this utility model;

[0018] Figure 3 A schematic diagram of the bottom structure of a rammer for building construction provided by this utility model;

[0019] Figure 4 A cross-sectional structural diagram of a rammer for building construction provided by this utility model;

[0020] Figure 5 This utility model provides a three-dimensional structural diagram of a rammer for building construction.

[0021] Legend:

[0022] 1. Pressure plate; 2. Casters; 3. Fixing pipe; 4. Upper groove shell; 5. Internal threaded block; 6. Threaded rod; 7. Rocker arm; 8. Limiting block; 9. Limiting rod; 10. Limiting strip; 11. Ramming block; 12. Inclined groove surface; 13. Force-bearing block; 14. Lifting block; 15. Connecting block; 16. Gripper; 17. Spring; 18. Motor; 19. Thread spool; 20. Traction line; 21. Roller; 22. Support rod. Detailed Implementation

[0023] 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.

[0024] Example 1, please refer to Figures 1 to 5 This utility model provides a technical solution: a tamping machine for building construction, including a pressure plate 1, characterized in that multiple casters 2 are rotatably connected to the bottom of the pressure plate 1, a fixed pipe 3 is connected to the top of the pressure plate 1, an upper groove shell 4 is movably embedded in the inner surface of the fixed pipe 3, an internal threaded block 5 is fixedly connected to one side of the upper groove shell 4, a threaded rod 6 is threadedly connected to the inner surface of the internal threaded block 5, the bottom of the threaded rod 6 is rotatably connected to the top of the pressure plate 1, a rocker arm 7 is fixedly connected to the top of the threaded rod 6, a limit assembly is provided on the outer surface of the upper groove shell 4, the limit assembly includes a limit block 8, one side of the limit block 8 is fixedly connected to the outer surface of the upper groove shell 4, a limit rod 9 is movably embedded in the inner surface of the limit block 8, the bottom of the limit rod 9 is fixedly connected to the top of the pressure plate 1, and the fixed pipe 3... The interior is equipped with a tamping block 11, on which a sloping groove surface 12 is opened. A force-bearing block 13 is fixedly connected to the top of the tamping block 11. A lifting block 14 is movably embedded inside the upper groove shell 4. A connecting block 15 is fixedly connected to one side of the lifting block 14. Two grippers 16 are rotatably connected to one side of the lifting block 14. Springs 17 are fixedly connected to the inner side of the two grippers 16. A motor 18 is fixedly connected to the top of the pressure plate 1. A coil 19 is fixedly connected to the output end of the motor 18. A traction line 20 is wound on the outer surface of the coil 19. A roller 21 is provided on the outer surface of the traction line 20. A support rod 22 is rotatably connected inside the roller 21. The bottom of the support rod 22 is fixedly connected to the top of the pressure plate 1. The end of the traction line 20 away from the coil 19 is fixedly connected to the top of the connecting block 15.

[0025] In this embodiment, the device is first moved to the target position using the pressure plate 1 and casters 2. Then, the height of the tamping block 11 is adjusted according to the soil properties at that location. The threaded rod 6 can be rotated on the top of the pressure plate 1 by the rocker arm 7. The rotation of the threaded rod will drive the internal threaded block 5. The limiting block 8 on one side of the upper slot shell 4 can only move along the axis of the limiting rod 9. Therefore, the rotation of the thread will drive the upper slot shell 4 to move along the axis of the limiting rod 9. Then, under the action of gravity, the lifting block 14 will descend by itself. Under the chamfering action of the gripper 16 and the elastic action of the spring 17, the gripper 16 will lift the tamping block 11. The tamping block 11 is clamped by the force-bearing block 13, and then the external power supply of the motor 18 is started. After the motor 18 is powered on, it will drive the coil 19 to rotate and drive the traction line 20 to rotate and wind. Under the action of the roller 21 and the conductor of the support rod 22, the traction line 20 will be driven to vertically pull up the tamping block 11 and the connecting block 15. The inclined groove surface 12 of the tamping block 11 can help it rise vertically inside the fixed pipe 3 and the upper groove shell 4. When the upper part of the gripper 16 contacts the upper groove shell 4, the gripper 16 will be released and the internal tamping block 11 will be released, so that the tamping block 11 will fall vertically and land on the ground to compact the ground.

[0026] Example 2, please refer to Figures 1 to 5 The limiting component also includes two limiting strips 10. The inner sides of the two limiting strips 10 are fixedly connected to the outer surface of the upper slot shell 4, and the outer surfaces of the two limiting strips 10 are movably embedded in the inner surface of the fixed tube 3.

[0027] In this embodiment, the limiting structure can also be such that rotating the thread of the limiting strip 10 will drive the upper slot shell 4 and the limiting strip 10 to rise vertically along the axial direction of the limiting strip 10.

[0028] Working principle: First, the device is moved to the target position via the pressure plate 1 and casters 2. Then, the height of the tamping block 11 is adjusted according to the soil properties. The rocker arm 7 drives the threaded rod 6 to rotate on the top of the pressure plate 1. The rotation of the threaded rod drives the internal threaded block 5. The limiting block 8 on one side of the upper slot shell 4 can only move along the axis of the limiting rod 9. Therefore, the rotation of the thread drives the upper slot shell 4 to move along the axis of the limiting rod 9. Then, under the action of gravity, the lifting block 14 will descend by itself. Under the chamfering action of the gripper 16 and the elastic action of the spring 17, the gripper 16 will clamp the force-bearing block 13 of the tamping block 11. Then, the external power supply of the motor 18 is started. When the motor 18 is powered on, it will drive the coil 19 to rotate and drive the traction line 20 to rotate and wind. Under the action of the roller 21 and the conductor of the support rod 22, the traction line 20 will be driven to vertically pull up the tamping block 11 and the connecting block 15. The inclined groove surface 12 of the tamping block 11 can help it rise vertically inside the fixed pipe 3 and the upper groove shell 4. When the upper part of the gripper 16 contacts the upper groove shell 4, it will release the gripper 16 and release the internal tamping block 11, so that the tamping block 11 will fall vertically and land on the ground to compact the ground. The limiting structure can also use the limiting strip 10. The rotating thread will drive the upper groove shell 4 and the limiting strip 10 to rise vertically along the axis of the limiting strip 10.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rammer compactor for civil engineering, comprising a pressure plate (1), characterized in that, The bottom of the pressure plate (1) is rotatably connected to multiple casters (2), the top of the pressure plate (1) is connected to a fixed pipe (3), the inner surface of the fixed pipe (3) is movably embedded with an upper slot shell (4), one side of the upper slot shell (4) is fixedly connected to an internal thread block (5), the inner surface of the internal thread block (5) is threadedly connected to a threaded rod (6), the bottom of the threaded rod (6) is rotatably connected to the top of the pressure plate (1), the top of the threaded rod (6) is fixedly connected to a rocker arm (7), and the outer surface of the upper slot shell (4) is provided with a limit component.

2. The rammer compactor for civil engineering according to claim 1, characterized by: The limiting component includes a limiting block (8), one side of which is fixedly connected to the outer surface of the upper slot shell (4), and a limiting rod (9) is movably embedded in the inner surface of the limiting block (8), with the bottom of the limiting rod (9) fixedly connected to the top of the pressure plate (1).

3. The rammer compactor for civil engineering according to claim 1, characterized by: The limiting component also includes two limiting strips (10), the inner sides of the two limiting strips (10) are fixedly connected to the outer surface of the upper slot shell (4), and the outer surfaces of the two limiting strips (10) are movably embedded in the inner surface of the fixing tube (3).

4. The rammer compactor for civil engineering according to claim 1, characterized by: The fixed tube (3) is provided with a tamping block (11) inside. The tamping block (11) has a sloping groove surface (12) and a force-bearing block (13) is fixedly connected to the top of the tamping block (11).

5. The rammer for building construction according to claim 4, characterized in that: The upper slot shell (4) is movably fitted with a lifting block (14), and a connecting block (15) is fixedly connected to one side of the lifting block (14).

6. The rammer for architectural construction according to claim 5, characterized in that: Two grippers (16) are rotatably connected to one side of the lifting block (14), and springs (17) are fixedly connected to the inner sides of the two grippers (16).

7. The rammer compactor for civil engineering according to claim 1, characterized by: A motor (18) is fixedly connected to the top of the pressure plate (1), and a coil (19) is fixedly connected to the output end of the motor (18). A traction line (20) is wound around the outer surface of the coil (19).

8. The rammer for building construction according to claim 7, characterized in that: The outer surface of the traction line (20) is provided with a roller (21), and a support rod (22) is rotatably connected inside the roller (21). The bottom of the support rod (22) is fixedly connected to the top of the pressure plate (1), and the end of the traction line (20) away from the coil (19) is fixedly connected to the top of the connecting block (15).

Citation Information

Patent Citations

  • Tamping machine for building civil engineering

    CN219930933U