Hydraulic tamping device for deep and narrow groove base

By combining a support plate, a fixed frame, a motor, a lead screw, and a sliding frame, along with the quick replacement of hydraulic cylinders, telescopic columns, and tamping heads, the problem of frequent relocation of hydraulic tamping devices in deep and narrow trench construction is solved, achieving efficient multi-point tamping and equipment adaptability.

CN224281225UActive Publication Date: 2026-05-26BEIJING MUNICIPAL CONSTR +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING MUNICIPAL CONSTR
Filing Date
2025-07-17
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing hydraulic compaction devices require frequent relocation during construction, which leads to cumbersome operation and affects work efficiency, especially in deep and narrow trench construction where the coverage area is limited.

Method used

A hydraulic compaction device for deep and narrow trench foundations was designed. Through the combination of support plate, fixed frame, motor, lead screw and sliding frame, the compaction device can be adjusted to move forward, backward and left and right. Combined with the quick replacement of hydraulic cylinder, telescopic column and tamping head, it can adapt to different environments and tasks.

Benefits of technology

It improved construction efficiency, expanded the compaction area each time, reduced the frequency of equipment movement, and enhanced the versatility and adaptability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tamping equipment, and discloses a deep narrow groove base hydraulic tamping device which comprises a supporting plate, a fixing frame is fixedly connected to the upper surface of the supporting plate, a first motor is fixedly connected to the outer wall of the fixing frame, a first lead screw is fixedly arranged at the output end of the first motor, and a second lead screw is fixedly arranged at the output end of the first lead screw. The outer wall of the first lead screw is rotationally connected to the inner wall of the fixing frame, the outer wall of the first lead screw is in threaded connection with a sliding frame, the outer wall of the sliding frame is slidably connected with a limiting frame, the lower surface of the limiting frame is fixedly connected to the upper surface of the supporting plate, and the outer wall of the sliding frame is fixedly connected with a second motor. A second lead screw is fixedly arranged at the output end of the second motor. According to the device, the supporting plate, the fixing frame, the first motor, the first lead screw, the sliding frame, the limiting frame, the second motor, the second lead screw and the sliding block are matched with one another, so that an operator can adjust the position of the ramming head under the condition that the whole device is not moved, the device is prevented from being moved frequently, and the construction efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of compaction equipment technology, and in particular to a hydraulic compaction device for deep and narrow trench foundations. Background Technology

[0002] In urban underground pipeline laying, foundation treatment, and municipal engineering construction, trench excavation is a common foundation work step. Especially in densely populated urban areas or complex underground facilities, deep and narrow trenches are often required for laying linear facilities such as heating pipes, cable trenches, and drainage networks. To ensure the bearing capacity of the trench foundation and prevent uneven settlement of backfill soil and pipeline deformation, the bottom of the trench must be compacted and reinforced.

[0003] A search revealed Chinese Patent Publication No. CN221095084U, which discloses a trench backfilling and compaction device. The device includes a base with electric casters at its bottom. A motor is fixed to the bottom of the base and attached to a platform. A support is connected upwards to the platform, and the support is connected to a horizontal guide frame. The guide frame has openings, and a movable seat is slidably connected within these openings. A base plate is fixed to the lower end of the movable seat, and guide rods are provided on both sides of the base plate. A mounting base and a compaction block are fixed to the lower ends of the guide rods. A hydraulic push rod is installed under the base plate, and its lower end is fixed to the mounting base. This compaction device avoids occupational vibration hazards to workers, improves construction efficiency, ensures compaction quality, and adds an auxiliary stabilizing device to guarantee the stability of the device during compaction.

[0004] Most existing hydraulic compaction devices use a fixed structure, with their compaction components moving mainly vertically up and down. Typically, the entire device needs to be moved to the target location before compaction. This single-point compaction method has limited coverage. When the construction area is long or the trench bottom is wide, frequent relocation of the equipment is necessary, which is not only cumbersome but also affects work efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hydraulic compaction device for deep and narrow trench bases, which aims to improve the problems of traditional compaction devices that use single-point compaction, require frequent device handling, are cumbersome to operate, and affect work efficiency.

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

[0007] A hydraulic compaction device for deep and narrow trench bases includes a support plate. A fixed frame is fixedly connected to the upper surface of the support plate. A motor is fixedly connected to the outer wall of the fixed frame. A lead screw is fixedly installed at the output end of the motor. The outer wall of the lead screw is rotatably connected to the inner wall of the fixed frame. A sliding frame is threadedly connected to the outer wall of the lead screw. A limit frame is slidably connected to the outer wall of the sliding frame. The lower surface of the limit frame is fixedly connected to the upper surface of the support plate. A second motor is fixedly connected to the outer wall of the sliding frame. A second lead screw is fixedly installed at the output end of the second motor. The outer wall of the second lead screw is rotatably connected to the inner wall of the sliding frame. A sliding block is threadedly connected to the outer wall of the second lead screw. A detection component is provided on the outer wall of the sliding block.

[0008] Through the above technical solution: the support plate can provide fixed support for the fixed frame and the limiting frame. The fixed frame can provide fixed support for motor one. By turning on motor one, the lead screw one can be rotated, causing the lead screw one to slide back and forth, thereby moving the compaction device back and forth. The sliding frame can also provide fixed support for motor two. By turning on motor two, the sliding block can be moved left and right, thereby moving the compaction device left and right to adjust its position. After compacting one point, by adjusting the position of the device, the device can quickly compact the next point, thereby expanding the compaction range of each station and improving construction efficiency.

[0009] As a further description of the above technical solution:

[0010] The detection assembly includes a detection arm, the outer wall of which is fixedly connected to the outer wall of the sliding block, and a detection module is fixedly connected to the lower surface of the detection arm.

[0011] Through the above technical solution: the sliding block can provide fixed support for the probe arm, and the probe arm can also provide fixed support for the probe module. The probe module can detect the location of the pipeline below.

[0012] As a further description of the above technical solution:

[0013] A hydraulic cylinder is fixedly connected to the lower surface of the sliding block, and a support frame is fixedly connected to the output end of the hydraulic cylinder.

[0014] Through the above technical solution, the sliding block can provide fixed support for the hydraulic cylinder, while the hydraulic cylinder pushes the support frame to move up and down, thereby achieving the effect of compaction.

[0015] As a further description of the above technical solution:

[0016] The upper surface of the support frame is fixedly connected to a telescopic column, and the top end of the telescopic column is fixedly connected to the lower surface of the sliding block.

[0017] Through the above technical solutions, the sliding block can also play a fixed support role for the telescopic column, and the telescopic column can play a sliding support role for the support frame.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the support frame is slidably connected to a sliding column, and the outer wall of the sliding column is fixedly connected to a pull ring.

[0020] Through the above technical solution, the support frame can provide sliding support for the sliding column. When the pull ring is pulled, the pull ring will drive the sliding column to slide.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the sliding column is provided with a ramming head, and the inside of the ramming head is provided with a slot.

[0023] The above technical solution involves an internal space for the ramming head, into which the sliding column can slide to achieve a limiting and fixing function.

[0024] As a further description of the above technical solution:

[0025] The outer wall of the sliding column is set on the inner wall of the slot, and a spring is fixedly connected to the inner wall of the support frame.

[0026] With the above technical solution, the limitation on the ramming head can be released when the sliding column slides out of the inner wall of the slot, and at the same time, the support frame can support the spring.

[0027] As a further description of the above technical solution:

[0028] A fixing ring is fixedly connected to the outer wall of the spring, and the inside of the fixing ring is fixedly connected to the outer wall of the sliding column.

[0029] The above technical solution allows the spring to drive the fixed ring to slide, which in turn causes the sliding column to slide into the inner wall of the slot, achieving the effect of limiting and fixing.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, through the cooperation between the support plate, the fixed frame, the first motor, the first lead screw, the sliding frame, the limiting frame, the second motor, the second lead screw and the sliding block, the operator can adjust the position of the tamping head without moving the whole device, avoiding frequent movement of the device and improving construction efficiency.

[0032] 2. In this utility model, through the cooperation between the hydraulic cylinder, support frame, telescopic column, sliding column, pull ring, ramming head, slot, spring and fixing ring, the operator can quickly change ramming heads of different sizes, materials and shapes to adapt to different environments and tasks, thereby improving the equipment's versatility and adaptability. Attached Figure Description

[0033] Figure 1 This is a perspective view of a hydraulic compaction device for deep and narrow trench base proposed in this utility model;

[0034] Figure 2 This is a partial structural diagram of the sliding block of a hydraulic compaction device for deep and narrow trench base proposed in this utility model;

[0035] Figure 3 This is a partial structural diagram of the hydraulic cylinder of a hydraulic compaction device for deep and narrow trench foundation proposed in this utility model;

[0036] Figure 4 This is a partial structural diagram of the spring in a hydraulic compaction device for deep and narrow trench base proposed in this utility model.

[0037] Legend:

[0038] 1. Support plate; 2. Fixing frame; 3. Motor 1; 4. Lead screw 1; 5. Sliding frame; 6. Limiting frame; 7. Motor 2; 8. Lead screw 2; 9. Sliding block; 10. Detection assembly; 1001. Detection arm; 1002. Detection module; 11. Hydraulic cylinder; 12. Support frame; 13. Telescopic column; 14. Sliding column; 15. Pull ring; 16. Rammer head; 17. Slot; 18. Spring; 19. Fixing ring. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] Reference Figure 1 and Figure 2An embodiment of this utility model provides a hydraulic compaction device for deep and narrow trench bases, comprising a support plate 1, a fixed frame 2 fixedly connected to the upper surface of the support plate 1, a motor 3 fixedly connected to the outer wall of the fixed frame 2, a lead screw 4 fixedly installed at the output end of the motor 3, the outer wall of the lead screw 4 rotatably connected to the inner wall of the fixed frame 2, a sliding frame 5 threadedly connected to the outer wall of the lead screw 4, a limit frame 6 slidably connected to the outer wall of the sliding frame 5, the lower surface of the limit frame 6 fixedly connected to the upper surface of the support plate 1, a second motor 7 fixedly connected to the outer wall of the sliding frame 5, a second lead screw 8 fixedly installed at the output end of the second motor 7, the outer wall of the second lead screw 8 rotatably connected to the inner wall of the sliding frame 5, a sliding block 9 threadedly connected to the outer wall of the second lead screw 8, and a detection component 10 provided on the outer wall of the sliding block 9;

[0041] Specifically, support plate 1 provides fixed support for fixed frame 2, which in turn provides fixed support for motor 3. When motor 3 is turned on, it drives lead screw 4 to rotate, which in turn causes sliding frame 5 to slide back and forth within the inner wall of limiting frame 6. Limiting frame 6 provides sliding support for sliding frame 5, ensuring its stable sliding. Support plate 1 also provides fixed support for limiting frame 6. Simultaneously, sliding frame 5 provides fixed support for motor 7. When motor 7 is turned on, motor 7... 7 will drive the second screw 8 to rotate, and the rotation of the second screw 8 will drive the sliding block 9 to slide left and right, thereby causing the compaction device to slide. By rotating the second screw 8, the compaction device can be adjusted to the left and right to adjust the compaction position. After the compaction at this position is completed, the rotation of the first screw 4 will drive the device to slide back and forth to adjust to the next compaction position. This allows the operator to slide the tamping head 16 back and forth and left and right within a small range without moving the whole device, realizing multi-point compaction at one work station, avoiding frequent movement of the device position, expanding the compaction range of each station, and improving construction efficiency.

[0042] Reference Figure 3 The detection component 10 includes a detection arm 1001, the outer wall of the detection arm 1001 is fixedly connected to the outer wall of the sliding block 9, and a detection module 1002 is fixedly connected to the lower surface of the detection arm 1001.

[0043] Specifically, the sliding block 9 can provide fixed support for the detection arm 1001, and the detection arm 1001 can also provide fixed support for the detection module 1002. The detection module 1002 contains an electromagnetic induction detection unit and a ground-penetrating radar detection unit. The electromagnetic induction detection unit is used to detect metal pipelines, and the ground-penetrating radar detection unit is used to detect non-metallic pipelines.

[0044] Reference Figure 4A hydraulic cylinder 11 is fixedly connected to the lower surface of the sliding block 9, and a support frame 12 is fixedly connected to the output end of the hydraulic cylinder 11; a telescopic column 13 is fixedly connected to the upper surface of the support frame 12, and the top end of the telescopic column 13 is fixedly connected to the lower surface of the sliding block 9.

[0045] Specifically, the sliding block 9 can provide fixed support for the hydraulic cylinder 11 and the telescopic column 13. By opening the hydraulic cylinder 11, the support frame 12 can be driven to slide up and down, which in turn drives the tamping head 16 to slide up and down, thus achieving the tamping effect. At the same time, when the support frame 12 slides, it will also drive the telescopic column 13 to extend and retract. The telescopic column 13 can make the support frame 12 slide vertically, ensuring the stability of the support frame 12.

[0046] Reference Figure 4 The inner wall of the support frame 12 is slidably connected to a sliding column 14, and the outer wall of the sliding column 14 is fixedly connected to a pull ring 15; the outer wall of the sliding column 14 is provided with a ramming head 16, and the ramming head 16 has a slot 17 inside; the outer wall of the sliding column 14 is set on the inner wall of the slot 17, and the inner wall of the support frame 12 is fixedly connected to a spring 18; the outer wall of the spring 18 is fixedly connected to a fixing ring 19, and the inside of the fixing ring 19 is fixedly connected to the outer wall of the sliding column 14.

[0047] Specifically, the support frame 12 provides sliding support for the sliding column 14, while the sliding column 14 provides fixed support for the pull ring 15. When the pull ring 15 is pulled, it causes the sliding column 14 to slide. When the sliding column 14 slides out of the inner wall of the slot 17, the limiting fixation of the ramming head 16 is released, allowing the ramming head 16 to be quickly removed from the inner wall of the support frame 12. When it is necessary to re-fix the ramming head 16, first insert the ramming head 16 into the inner wall of the support frame 12, and then use the elastic force of the spring 18 to push the fixing ring 19 to slide. The support frame 12 can support and limit the spring 18. At the same time, the sliding of the fixing ring 19 will also drive the sliding column 14 to slide into the inner wall of the slot 17, thus achieving the effect of quick installation. Through the quick disassembly and assembly of the tamping head 16, the workers can complete the disassembly and assembly of the tamping head 16 in a few seconds without using bolts or other tools. This allows for the quick replacement of tamping heads 16 of different sizes, materials, and shapes, such as flat-bottomed, conical, and concave types, to adapt to different trench widths, soil compaction, or construction tasks, thereby improving the equipment's versatility and adaptability.

[0048] Working principle: When using this device, first turn on motor 7, which drives screw 8 to rotate. The rotation of screw 8 will cause sliding block 9 to slide left and right, adjusting the position of sliding block 9 relative to the trench, and then compaction will be carried out. After compacting one point, turn on motor 3, which drives screw 4 to rotate. The rotation of screw 4 will cause sliding frame 5 to slide back and forth, adjusting the compaction device to the next compaction position. This allows the operator to slide the tamping head 16 back and forth and left and right in a small range without moving the entire device, achieving multi-point compaction at one workstation, avoiding frequent changes in device position, and improving construction efficiency.

[0049] Then pull the pull ring 15, which drives the sliding column 14 to slide. When the sliding column 14 slides out of the inner wall of the slot 17, the limiting fixation of the ramming head 16 can be released, allowing the ramming head 16 to be quickly disassembled. When it needs to be re-fixed, slide the ramming head 16 into the inner wall of the support frame 12. The rebound force of the spring 18 pushes the fixing ring 19 to slide, thereby driving the sliding column 14 into the inner wall of the slot 17, achieving the effect of quick limiting fixation. Through the quick disassembly and assembly of the ramming head 16, the staff can quickly replace ramming heads 16 of different sizes, materials, and shapes to adapt to different environments and tasks, thereby improving the equipment's versatility and adaptability.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic compaction device for deep and narrow trench foundations, comprising a support plate (1), characterized in that: A fixed frame (2) is fixedly connected to the upper surface of the support plate (1). A motor (3) is fixedly connected to the outer wall of the fixed frame (2). A lead screw (4) is fixedly installed at the output end of the motor (3). The outer wall of the lead screw (4) is rotatably connected to the inner wall of the fixed frame (2). A sliding frame (5) is threadedly connected to the outer wall of the lead screw (4). A limit frame (6) is slidably connected to the outer wall of the sliding frame (5). The lower surface of the limit frame (6) is fixedly connected to the upper surface of the support plate (1). A motor (7) is fixedly connected to the outer wall of the sliding frame (5). A lead screw (8) is fixedly installed at the output end of the motor (7). The outer wall of the lead screw (8) is rotatably connected to the inner wall of the sliding frame (5). A sliding block (9) is threadedly connected to the outer wall of the lead screw (8). A detection component (10) is installed on the outer wall of the sliding block (9).

2. The hydraulic compaction device for deep and narrow trench foundations according to claim 1, characterized in that: The detection component (10) includes a detection arm (1001), the outer wall of which is fixedly connected to the outer wall of the sliding block (9), and a detection module (1002) is fixedly connected to the lower surface of the detection arm (1001).

3. The hydraulic compaction device for deep and narrow trench foundations according to claim 2, characterized in that: A hydraulic cylinder (11) is fixedly connected to the lower surface of the sliding block (9), and a support frame (12) is fixedly connected to the output end of the hydraulic cylinder (11).

4. The hydraulic compaction device for deep and narrow trench foundations according to claim 3, characterized in that: The upper surface of the support frame (12) is fixedly connected to a telescopic column (13), and the top end of the telescopic column (13) is fixedly connected to the lower surface of the sliding block (9).

5. The hydraulic compaction device for deep and narrow trench foundations according to claim 4, characterized in that: The inner wall of the support frame (12) is slidably connected to a sliding column (14), and the outer wall of the sliding column (14) is fixedly connected to a pull ring (15).

6. The hydraulic compaction device for deep and narrow trench foundations according to claim 5, characterized in that: The outer wall of the sliding column (14) is provided with a ramming head (16), and the inside of the ramming head (16) is provided with a slot (17).

7. The hydraulic compaction device for deep and narrow trench foundations according to claim 6, characterized in that: The outer wall of the sliding column (14) is set on the inner wall of the slot (17), and the inner wall of the support frame (12) is fixedly connected with a spring (18).

8. The hydraulic compaction device for deep and narrow trench foundations according to claim 7, characterized in that: A fixing ring (19) is fixedly connected to the outer wall of the spring (18), and the inside of the fixing ring (19) is fixedly connected to the outer wall of the sliding column (14).