An excavator-mounted vibration compactor device for trench backfill

By installing an excavator-mounted vibratory compaction device on an excavator, the excavator's hydraulic system drives the eccentric shaft to vibrate, and protective components prevent stone impacts. This solves the problems of low efficiency, significant safety hazards, and high cost associated with traditional compaction equipment, achieving efficient, safe, and low-cost trench backfilling and compaction.

CN224299933UActive Publication Date: 2026-05-29CCCC SDC (FUJIAN) COMM CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC SDC (FUJIAN) COMM CONSTR ENG CO LTD
Filing Date
2025-07-08
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional compaction equipment is inefficient and labor-intensive in trench backfilling, especially in narrow or deep trenches where there are significant safety hazards. Furthermore, existing vehicle-mounted devices are expensive, lack flexibility, and are incompatible with existing excavators.

Method used

Design an excavator-mounted vibratory compaction device. By installing a bottom tamping plate, manganese steel plate frame, bucket lugs and hydraulic motor on the excavator boom, the device utilizes the excavator's existing hydraulic system to drive an eccentric shaft to generate vibration. Combined with protective components to prevent stone impact, it achieves automated compaction.

Benefits of technology

It enables efficient and safe compaction operations in trench backfilling, reduces the risk of human exposure, adapts to complex environments, extends equipment life, and reduces labor intensity and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to vibration ramming device technical field, and disclose a kind of excavator mounted type vibration ramming device for trench backfilling, including bottom ram plate, mounting bracket, shock pad and manganese steel plate frame, manganese steel plate frame upper end surface both sides are provided with bucket ear, bucket ear is provided with connecting pin, the center of bottom ram plate upper end surface is provided with eccentric shaft through base, eccentric shaft front end is provided with hydraulic motor, hydraulic motor is provided with hydraulic oil pipe, the end of hydraulic oil pipe far from hydraulic motor is connected with the quick connector of excavator main oil circuit.The excavator mounted type vibration ramming device for trench backfilling, the excavator small arm head is loaded into bucket ear and is connected by connecting pin, the end of hydraulic oil pipe far from hydraulic motor is connected with the quick connector of excavator main oil circuit, hydraulic motor drives eccentric shaft to generate vertical vibration by original hydraulic pipe line of excavator, and compaction work is carried out, reduce the risk that artificial exposure is in dangerous environment.
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Description

Technical Field

[0001] This utility model relates to the technical field of vibratory compaction devices, specifically an excavator-mounted vibratory compaction device for trench backfilling. Background Technology

[0002] Backfilling trenches is a crucial step after the completion of pipeline and cable installation projects, and it is of great significance for ensuring project quality and safe use. On the one hand, it protects the buried pipelines or cables from damage caused by external pressure, impact, or environmental factors; on the other hand, backfilling the trenches restores the ground level, meeting the needs of subsequent traffic and construction, and ensuring the ground's bearing capacity and stability.

[0003] The trench excavation design is for sloping excavation, but due to the inability to relocate pipelines on both sides, vertical excavation is the only option. After vertical excavation, backfilling the trench requires manual operation using traditional compaction equipment (such as vibratory rammers and impact rammers), which is inefficient and labor-intensive, especially in narrow or deep trenches, posing significant safety hazards. Some vehicle-mounted compaction devices require dedicated chassis, which are costly and lack flexibility, and are incompatible with existing excavators and other equipment, leading to resource waste. Therefore, there is a need to provide an excavator-mounted vibratory compaction device for trench backfilling to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an excavator-mounted vibratory compaction device for trench backfilling, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an excavator-mounted vibratory compaction device for trench backfilling, comprising a bottom compaction plate, mounting frames at both ends of the upper surface of the bottom compaction plate, shock absorbers at both ends of the upper surface of the mounting frames, a manganese steel plate frame at the upper end of the shock absorbers, bucket ears on both sides of the upper surface of the manganese steel plate frame, connecting pins on the bucket ears, a base at the center of the upper surface of the bottom compaction plate, an eccentric shaft at the upper surface of the bottom compaction plate via the base, a hydraulic motor at the front end of the eccentric shaft, a hydraulic oil pipe on the hydraulic motor, and a quick connector connecting the end of the hydraulic oil pipe away from the hydraulic motor to the main hydraulic circuit of the excavator.

[0006] Preferably, the manganese steel plate frame includes an arc-shaped vertical plate, a bottom connecting plate, and a mounting top plate. Two arc-shaped vertical plates and two bottom connecting plates are provided. The bottom connecting plate is located at the lower end of the arc-shaped vertical plate. The lower end of the manganese steel plate frame is connected to the shock-absorbing block through the bottom connecting plate. The mounting top plate is located at the upper end of the arc-shaped vertical plate.

[0007] Preferably, the bucket ears are disposed on both sides of the upper surface of the mounting top plate of the manganese steel plate frame, and a clamping assembly is disposed between the two arc-shaped vertical plates at one end of the manganese steel plate frame.

[0008] Preferably, the clamping assembly includes a first fixed plate, a second fixed plate, and a movable pressure plate. The movable pressure plate is disposed between the first fixed plate and the second fixed plate, and both ends of the movable pressure plate are slidably connected to the inner wall of the arc-shaped vertical plate of the manganese steel plate frame through sliders.

[0009] Preferably, the second fixed plate is threadedly connected to a clamping screw at its center, one end of which is rotatably connected to a movable pressure plate, and a handle is provided at the end of the clamping screw away from the movable pressure plate.

[0010] Preferably, the bottom ramming plate has mounting grooves on both sides of its upper surface, and protective components are provided on both sides of the bottom ramming plate through the mounting grooves.

[0011] Preferably, the protective component includes a vertical baffle, a fixed base plate, and a rubber pad. The vertical baffle is fixedly disposed at the center of the upper surface of the fixed base plate, and the fixed base plate is snapped into the mounting groove.

[0012] Preferably, the four corners of the fixed base plate and the four corners of the bottom surface of the mounting groove are provided with corresponding mounting holes, and the rubber pad is provided on the front of the vertical baffle.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This excavator-mounted vibratory compactor for trench backfilling involves slowly inserting the excavator boom head into the bucket ear, aligning the shaft hole on the bucket ear with the excavator boom interface, and connecting them via a connecting pin. The end of the hydraulic oil pipe furthest from the hydraulic motor is connected to the quick connector of the excavator's main hydraulic circuit. The hydraulic motor drives the eccentric shaft through the excavator's existing hydraulic lines to generate vertical vibration for compaction. Operators do not need to enter the trench, reducing the risk of human exposure to hazardous environments, saving time and labor, and possessing the ability to adapt to complex construction environments.

[0015] 2. The excavator-mounted vibratory compactor for trench backfilling is equipped with an installation slot for easy installation of protective components. When the vibratory compactor is working, if stones or soil blocks slide down from both sides, the protective components can effectively prevent the stones or protrusions from directly hitting the eccentric shaft or hydraulic motor, thus extending the service life of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the excavator-mounted vibratory compaction device for trench backfilling according to this utility model;

[0017] Figure 2 This is one of the structural schematic diagrams of the excavator-mounted vibratory compaction device for trench backfilling of this utility model without the installation of protective components;

[0018] Figure 3This is the second structural schematic diagram of the excavator-mounted vibratory compactor device for trench backfilling of this utility model without the installation of protective components;

[0019] Figure 4 This is a schematic diagram of the installation structure of the mounting bracket and shock absorber of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the manganese steel plate frame and the clamping assembly of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the protective component of this utility model.

[0022] In the diagram: 1. Bottom ramming plate; 101. Mounting groove; 102. Base; 2. Mounting frame; 3. Shock absorber block; 4. Manganese steel plate frame; 401. Bucket ear; 5. Connecting pin; 6. Eccentric shaft; 7. Hydraulic motor; 701. Hydraulic oil pipe; 8. Clamping assembly; 801. First fixing plate; 802. Second fixing plate; 803. Movable pressure plate; 804. Clamping screw; 805. Handle; 9. Protective component; 901. Vertical baffle; 902. Fixed base plate; 903. Rubber pad. 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] Please see Figure 1-6 A vibratory compaction device mounted on an excavator for trench backfilling includes a bottom compaction plate 1. Mounting frames 2 are provided at both ends of the upper surface of the bottom compaction plate 1. Shock-absorbing blocks 3 are provided at both ends of the upper surface of the mounting frames 2. A manganese steel plate frame 4 is provided on the upper end of the shock-absorbing blocks 3. Bucket ears 401 are provided on both sides of the upper surface of the manganese steel plate frame 4. Connecting pins 5 are provided on the bucket ears 401. A base 102 is provided at the center of the upper surface of the bottom compaction plate 1. An eccentric shaft 6 is provided on the upper surface of the bottom compaction plate 1 via the base 102. A hydraulic motor 7 is provided at the front end of the eccentric shaft 6. A hydraulic oil pipe 701 is provided on the hydraulic motor 7. The end of the hydraulic oil pipe 701 furthest from the hydraulic motor 7 is connected to a quick-connect coupling in the main hydraulic circuit of the excavator.

[0025] The manganese steel plate frame 4 includes an arc-shaped vertical plate, a bottom connecting plate, and a mounting top plate. There are two arc-shaped vertical plates and two bottom connecting plates. The bottom connecting plate is located at the lower end of the arc-shaped vertical plate. The lower end of the manganese steel plate frame 4 is connected to the shock absorber block 3 through the bottom connecting plate. The mounting top plate is located at the upper end of the arc-shaped vertical plate. Bucket ears 401 are located on both sides of the upper surface of the mounting top plate of the manganese steel plate frame 4. A clamping assembly 8 is provided between the two arc-shaped vertical plates at one end of the manganese steel plate frame 4. By setting the manganese steel plate frame 4, it is convenient to install the bucket ears 401 and use them to connect with the excavator boom. It can also effectively protect the eccentric shaft 6 and the hydraulic motor 7.

[0026] The clamping assembly 8 includes a first fixed plate 801, a second fixed plate 802, and a movable pressure plate 803. The movable pressure plate 803 is located between the first fixed plate 801 and the second fixed plate 802. Both ends of the movable pressure plate 803 are slidably connected to the inner wall of the arc-shaped vertical plate of the manganese steel plate frame 4 via sliders. The center of the second fixed plate 802 is threaded with a clamping screw 804. One end of the clamping screw 804 is rotatably connected to the movable pressure plate 803. A handle 805 is provided at the end of the clamping screw 804 away from the movable pressure plate 803. When the hydraulic oil pipe 701 passes between the first fixed plate 801 and the movable pressure plate 803, rotating the handle 805 can drive the clamping screw 804 to rotate synchronously and move towards the end of the first fixed plate 801. During the movement of the clamping screw 804, it will push the movable pressure plate 803 to move synchronously and clamp the hydraulic oil pipe 701, avoiding the hydraulic oil pipe 701 from becoming messy and ensuring the positional stability of the hydraulic oil pipe 701.

[0027] The bottom tamping plate 1 has mounting grooves 101 on both sides of its upper surface. Protective components 9 are installed on both sides of the bottom tamping plate 1 through the mounting grooves 101. The protective components 9 include a vertical baffle 901, a fixed base plate 902, and a rubber pad 903. The vertical baffle 901 is fixedly installed at the center of the upper surface of the fixed base plate 902. The fixed base plate 902 is inserted into the mounting groove 101. The mounting grooves 101 facilitate the installation of the protective components 9. When the vibratory compaction device is working, if stones or soil clods slide down from both sides, the protective components 9 can effectively prevent the stones or protrusions from directly hitting the eccentric shaft 6 or the hydraulic motor 7, thus extending the service life of the device.

[0028] The fixed base plate 902 and the bottom corner of the mounting groove 101 are provided with corresponding mounting holes. The rubber pad 903 is set on the front of the vertical baffle 901. By setting the mounting holes, it is easy to fix the protective part 9 with fixing screws. When the stone rolls down and hits the protective part 9, the rubber pad 903 can effectively play a certain buffering role.

[0029] Working principle: During installation, the excavator boom head is slowly inserted into the bucket ear 401. The shaft hole on the bucket ear 401 is aligned with the excavator boom interface and connected by the connecting pin 5. The end of the hydraulic oil pipe 701 away from the hydraulic motor 7 is connected to the quick connector of the excavator's main oil circuit. The hydraulic motor 7 drives the eccentric shaft 6 through the excavator's original hydraulic pipeline to generate vertical vibration and perform compaction work. The operator does not need to enter the trench, reducing the risk of human exposure to dangerous environments, and saving time and effort.

[0030] Furthermore, when the vibratory compaction device is working, if stones or clods of soil slide down from both sides, the protective parts 9 can effectively prevent the stones or protrusions from directly hitting the eccentric shaft 6 or the hydraulic motor 7, thus extending the service life of the device. When the hydraulic oil pipe 701 passes between the first fixed plate 801 and the movable pressure plate 803, the handle 805 can be turned to drive the clamping screw 804 to rotate synchronously and move towards the end of the first fixed plate 801. During the movement of the clamping screw 804, it will push the movable pressure plate 803 to move synchronously and clamp the hydraulic oil pipe 701, avoiding the hydraulic oil pipe 701 from becoming messy and ensuring the positional stability of the hydraulic oil pipe 701.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An excavator-mounted vibratory compactor for trench backfilling, characterized in that, The device includes a bottom ramming plate (1), with mounting brackets (2) at both ends of the upper surface of the bottom ramming plate (1), shock absorbers (3) at both ends of the upper surface of the mounting brackets (2), a manganese steel plate frame (4) at the upper end of the shock absorbers (3), bucket ears (401) on both sides of the upper surface of the manganese steel plate frame (4), and connecting pins (5) on the bucket ears (401). A base (102) is located at the center of the upper surface of the bottom ramming plate (1), and an eccentric shaft (6) is located on the upper surface of the bottom ramming plate (1) via the base (102). A hydraulic motor (7) is located at the front end of the eccentric shaft (6), and a hydraulic oil pipe (701) is located on the hydraulic motor (7). The end of the hydraulic oil pipe (701) away from the hydraulic motor (7) is connected to a quick connector of the main oil circuit of the excavator.

2. The excavator-mounted vibratory compactor for trench backfilling according to claim 1, characterized in that, The manganese steel plate frame (4) includes an arc-shaped vertical plate, a bottom connecting plate and a mounting top plate. There are two arc-shaped vertical plates and two bottom connecting plates. The bottom connecting plate is located at the lower end of the arc-shaped vertical plate. The lower end of the manganese steel plate frame (4) is connected to the shock absorber (3) through the bottom connecting plate. The mounting top plate is located at the upper end of the arc-shaped vertical plate.

3. The excavator-mounted vibratory compactor for trench backfilling according to claim 2, characterized in that, The bucket ears (401) are provided on both sides of the upper surface of the mounting top plate of the manganese steel plate frame (4), and a clamping assembly (8) is provided between the two arc-shaped vertical plates at one end of the manganese steel plate frame (4).

4. The excavator-mounted vibratory compactor for trench backfilling according to claim 3, characterized in that, The clamping assembly (8) includes a first fixed plate (801), a second fixed plate (802), and a movable pressure plate (803). The movable pressure plate (803) is disposed between the first fixed plate (801) and the second fixed plate (802). The two ends of the movable pressure plate (803) are slidably connected to the inner wall of the arc-shaped vertical plate of the manganese steel plate frame (4) through sliders.

5. The excavator-mounted vibratory compactor for trench backfilling according to claim 4, characterized in that, The second fixing plate (802) is threaded with a clamping screw (804) at its center. One end of the clamping screw (804) is rotatably connected to the movable pressure plate (803), and a handle (805) is provided at the end of the clamping screw (804) away from the movable pressure plate (803).

6. The excavator-mounted vibratory compactor for trench backfilling according to claim 1, characterized in that, The bottom ramming plate (1) has mounting grooves (101) on both sides of its upper surface, and protective parts (9) are provided on both sides of the bottom ramming plate (1) through the mounting grooves (101).

7. The excavator-mounted vibratory compactor for trench backfilling according to claim 6, characterized in that, The protective component (9) includes a vertical baffle (901), a fixed base plate (902), and a rubber pad (903). The vertical baffle (901) is fixedly disposed at the center of the upper surface of the fixed base plate (902), and the fixed base plate (902) is inserted into the mounting groove (101).

8. The excavator-mounted vibratory compactor for trench backfilling according to claim 7, characterized in that, The four corners of the fixed base plate (902) and the four corners of the bottom surface of the mounting groove (101) are provided with corresponding mounting holes, and the rubber pad (903) is provided on the front of the vertical baffle (901).