A building backfill soil layered compaction device

Abstract

The utility model belongs to building construction equipment technical field especially relates to a building backfill soil layered compacting device, include: main body, be provided with motor on the main body machine, rammer board, rammer board sets up below the main body and carries out ramming operation through motor control, power supply unit, power supply unit sets up in the one side of main body for providing motor operation required power, still include: vibration isolation mechanism, vibration isolation mechanism sets up between power supply unit and main body for connecting power supply unit and main body, folding handle, folding handle sets up on main body, wherein, vibration isolation mechanism absorbs vibration energy through elastic support and damping common operation in ramming operation, relative to prior art, the utility model can effectively improve building backfill soil layered compacting device's service life and the storage and transportation of convenient device.

Description

Technical Field

[0001] This utility model belongs to the field of building construction equipment technology, and in particular relates to a layered compaction device for building backfill soil. Background Technology

[0002] A layered compaction device for backfill soil, also known as an electric rammer, is an engineering device that compacts soil or foundation through electric drive. Its core technologies include vibration compaction and impact compaction, and it is mainly used in backfill soil compaction in building construction and foundation treatment in road construction. For example, a layered compaction device for backfill soil disclosed in patent application number CN202022428242.4 includes a pressure plate, a cleaning pad on the lower outer side of the pressure plate, movable blocks on both sides of the cleaning pad, a slot on the upper outer side of the pressure plate, a base on the upper outer side of the slot, a handle on one side of the base, an anti-slip pad on the outer wall of the handle, and Velcro fasteners at both ends of the anti-slip pad. A rotating bolt is located on the lower outer side of the handle. During use, the vibration of this existing backfill soil layered compaction device is transmitted to the power supply unit (such as the battery), which can easily cause damage to the internal structure of the power supply unit (such as the weld joint falling off), reducing the service life of the device. At the same time, the handle of the device is a fixed structure, which occupies a lot of space and is inconvenient for storage and transportation. Therefore, it is necessary to make improvements. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned technical problems by providing a layered compaction device for building backfill soil, which can effectively improve the service life of the device and facilitate its storage and transportation.

[0004] In view of this, the present invention provides a layered compaction device for building backfill soil, comprising: The main body, on which a motor is installed; A tamping plate is installed below the main body and is controlled by a motor to perform tamping operations. A power supply unit is located on one side of the main body and is used to provide the power required for the motor to operate. Also includes: A vibration isolation mechanism is provided between the power supply unit and the main body to connect the power supply unit and the main body. A folding handle is mounted on the main body. The vibration isolation mechanism absorbs vibration energy during compaction by combining elastic support and damping.

[0005] In this technical solution, when the compaction device is used to compact backfill soil in layers, the main body will vibrate violently in the vertical direction due to the impact of the tamping plate. Through the setting of the vibration isolation mechanism, the elastic support absorbs part of the vibration energy through elastic deformation, converting the vibration impact force into elastic potential energy, reducing the swing speed of the power supply unit. The damping consumes the vibration energy and avoids the resonance phenomenon of the elastic support. The folding handle can be unfolded when in use and folded when stored and transported. Compared with the prior art, this utility model can effectively improve the service life of the backfill soil layer compaction device and facilitate the storage and transportation of the device.

[0006] In the above technical solution, the vibration isolation mechanism further includes: The connecting rod connection part, the connecting mechanism includes an upper connecting rod, a lower connecting rod and a support connecting rod; An elastic support member is provided on the main body to provide elastic support for the connecting rod connection part; A damper, which is installed on the main body to absorb vibration energy and prevent resonance of the elastic support; The upper connecting rod, lower connecting rod, and support connecting rod together with the main body form a movable parallelogram structure. The power supply unit is installed on the support connecting rod. The connecting part of the connecting rod swings synchronously with the compaction operation, and the swing axis is parallel to the vibration direction.

[0007] Furthermore, the above technical solution also includes: An auxiliary motor is mounted on the main body. The auxiliary motor is used to drive the upper connecting rod to rotate actively in order to counteract the vibration displacement of the power supply unit.

[0008] In the above technical solution, the folding handle further includes: The lower handle is fixedly connected to the main body at its bottom end; The upper handle is rotatably connected to the lower handle by a support connecting pin at its bottom end. A locking part, located at the top of the lower handle and the bottom of the upper handle, is used to lock and release the rotational movement of the lower and upper handles.

[0009] In the above technical solution, the locking part further includes: A locking hole is provided at the upper end of the lower handle; A pin is fixedly installed at the bottom end of the upper handle, and a locking pin that moves along the pin's axial direction is provided in the pin. A preload spring is provided in the pin and presses the outer end of the locking pin out of the pin. A release handle, the outer end of which is movably connected to the inner end of a pin; When the locking pin is inserted into the pin hole, the rotational movement of the lower handle and the upper handle is locked, and the release handle is connected to the inner end of the locking pin through a connecting pin.

[0010] The beneficial effects of this utility model are: 1. The passive vibration isolation mechanism can effectively absorb the vibration energy of compaction. The elastic support component initially buffers the vibration through elastic deformation, and the damper suppresses the resonance phenomenon, thereby effectively reducing the vibration displacement of the power supply unit and improving the service life of the building backfill soil layer compaction device.

[0011] 2. The folding handle allows for quick folding when not in use, effectively reducing storage space requirements and significantly lowering transportation costs. Furthermore, the locking mechanism of the folding handle utilizes a combination of a pre-tensioned spring and a locking pin, ensuring high locking reliability and preventing accidental folding due to vibration during operation, thus guaranteeing operator safety.

[0012] 3. The auxiliary motor can further actively counteract vibration displacement, effectively reducing the vibration displacement of the power supply unit, thereby improving the service life of the building backfill soil layer compaction device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the auxiliary motor structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the folding handle structure of this utility model.

[0017] Figure 4 This is a top view structural diagram of the folding handle of this utility model.

[0018] Figure 5 This is a schematic cross-sectional view of the folding handle of this utility model.

[0019] The markings in the diagram are as follows: 1. Main body; 2. Motor; 3. Ramming plate; 4. Power supply unit; 5. Vibration isolation mechanism; 50. Upper connecting rod; 51. Lower connecting rod; 52. Support connecting rod; 53. Elastic support component; 54. Damper; 55. Auxiliary motor; 6. Folding handle; 60. Lower handle; 61. Upper handle; 62. Support connecting pin; 63. Locking part; 630. Locking hole; 631. Pin; 632. Locking pin; 633. Preload spring; 634. Release handle; 635. Connecting pin. Detailed Implementation

[0020] 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.

[0021] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] main body of the device Main body 1: Serving as the mounting carrier for the device, it integrates the structure required by conventional compaction devices, such as motor 2, drive mechanism, crank mechanism, and reduction gear set. Motor 2 provides power for the compaction operation. The power is reduced in speed by the reduction gear set and then transmitted to the crank mechanism. The crank mechanism converts the rotational motion into linear reciprocating motion, thereby driving the tamping plate 3 to achieve the up-and-down compaction operation. Ramming plate 3: Located below the main body 1, it is made of high-strength wear-resistant material (such as Q355 steel) and connected to the main body 1 through a crank mechanism. Driven by motor 2, it completes the layered compaction of backfill soil. Its lower surface can be set with anti-slip texture to improve the soil adhesion during the compaction process. Power supply unit 4: It adopts a rechargeable lithium battery pack, which is located on one side of the main body 1. It provides power to electrical components such as motor 2 and auxiliary motor 55 through wires. Its exterior is wrapped with an insulating protective shell to prevent dust and mud from entering during operation. Vibration isolation mechanism 5: connects the power supply unit 4 and the main body 1. The core is a combination structure of "connecting rod connection part + elastic support 53 + damper 54". It works with the auxiliary motor 55 to achieve active control. The elastic support absorbs vibration energy, the damper 54 suppresses resonance, and the auxiliary motor 55 actively cancels vibration displacement, forming triple vibration isolation protection. Folding handle 6: It consists of a lower handle 60, an upper handle 61 and a locking part 63. The lower handle 60 is fixedly connected to the main body 1. The upper handle 61 is rotatably connected to the lower handle 60 through a support connecting pin 62. The locking part 63 realizes reliable locking in the unfolded state and quick release in the folded state, meeting the gripping needs during operation and the space-saving needs when not in operation. It also includes an electronic control unit and sensors: sensors (such as a triaxial accelerometer) are installed on the outside of the power supply unit 4 to detect the vibration frequency and displacement of the power supply unit 4 in real time; the electronic control unit (ECU) is integrated inside the main body 1 to receive the vibration signals output by the sensors and analyze and process them, thereby controlling the operation of the auxiliary motor 55; the auxiliary motor 55 is fixed to the main body 1 by bolts, and its output shaft is connected to the upper connecting rod 50 of the vibration isolation mechanism 5 for transmission. By driving the upper connecting rod 50 to rotate actively, it can offset the vibration displacement of the power supply unit 4 caused by the compaction operation.

[0023] Vibration isolation mechanism 5 The connecting rod section consists of an upper connecting rod 50, a lower connecting rod 51, and a supporting connecting rod 52, forming a movable parallelogram structure. The left ends of both the upper connecting rod 50 and the lower connecting rod 51 are rotatably connected to the bosses on the side wall of the main body 1 via bearings, and the axes of the upper connecting rod 50 and the lower connecting rod 51 remain parallel at all times. The upper and lower ends of the supporting connecting rod 52 are rotatably connected to the right ends of the upper connecting rod 50 and the lower connecting rod 51 respectively via bearings. The power supply unit 4 is fixed to the right side wall of the supporting connecting rod 52 by bolts. This parallelogram structure design allows the power supply unit 4 to swing only along an axis parallel to the vibration direction (vertical direction) during compaction operations, avoiding additional stress caused by lateral vibration. Elastic support 53: A conventional support spring (such as a cylindrical helical spring) is used. One end of the spring is fixed to the bottom bracket of the main body 1 by welding or bolting, and the other end extends upward and contacts the lower surface of the lower connecting rod 51 (rotational connection can be achieved through a hinge seat). When the main body 1 vibrates downward due to the compaction operation, the lower connecting rod 51 will swing downward around the left end rotation axis. At this time, the elastic support 53 is compressed, and part of the vibration energy is absorbed by the elastic deformation of the spring, thus achieving passive vibration isolation for the power supply unit 4. Damper 54: A hydraulic damper 54 is used, located on one side of the elastic support 53 (e.g., the right side). One end of the damper is fixedly connected to the bottom bracket of the main body 1, and the other end extends upward and is hinged to the lower surface of the lower connecting rod 51. The core function of the damper 54 is to suppress the resonance phenomenon of the elastic support 53. When the elastic support 53 reciprocates under vibration, the damper 54 consumes the vibration energy through the viscous resistance of the hydraulic oil, slows down the vibration frequency of the spring, avoids the amplification of vibration energy due to resonance, and further improves the vibration isolation effect. Auxiliary motor 55 and active control: The auxiliary motor 55 is a stepper motor 2, whose output shaft is connected to the rotating shaft at the left end of the upper connecting rod 50 via a coupling. When the sensor detects that the vibration displacement of the power supply unit 4 exceeds a preset threshold, the electronic control unit sends a control signal to the auxiliary motor 55, driving the auxiliary motor 55 to actively rotate the upper connecting rod 50. If the power supply unit 4 tends to move downward due to vibration, the auxiliary motor 55 drives the upper connecting rod 50 to rotate clockwise, driving the support connecting rod 52 to move upward through the parallelogram structure, thus offsetting the downward displacement. If the power supply unit 4 tends to move upward, the auxiliary motor 55 drives the upper connecting rod 50 to rotate counterclockwise, driving the support connecting rod 52 to move downward, thus actively offsetting the vibration displacement and forming a dual protection of "passive vibration isolation + active control".

[0024] Folding handle 6 The lower handle 60 and the upper handle 61: The bottom end of the lower handle 60 is fixed to the side wall of the main body 1 by welding or bolting, and the top end is machined with a groove for connecting the upper handle 61; the bottom end of the upper handle 61 is also provided with a groove to match the groove on the lower handle 60. The two are rotatably connected by a support connecting pin 62. The support connecting pin 62 passes laterally through the connection part of the lower handle 60 and the upper handle 61, so that the upper handle 61 can rotate around the support connecting pin 62 (when unfolded, it is collinear with the lower handle 60). Locking part 63: This is the core component for locking and releasing the handle, including locking hole 630, pin 631, locking pin 632, preload spring 633, and release handle 634. The pin 631, locking pin 632, preload spring 633, release handle 634, and connecting pin 635 are coaxially distributed to ensure even force distribution and smooth operation. Locking hole 630: It is formed on the side wall of the groove at the top of the lower handle 60, and its diameter matches the diameter of the locking pin 632 to accommodate the locking pin 632. Pin 631: It is a hollow cylindrical structure and is fixedly installed on the bottom side wall of the upper handle 61 (corresponding to the locking hole 630). Its interior is machined with a cavity to accommodate the locking pin 632 and the preload spring 633. Locking pin 632: It is a cylindrical metal rod that is set in the cavity of pin 631 and can move along the axial direction of pin 631. Its outer end (the end near the locking hole 630) is chamfered to facilitate insertion into the locking hole 630. Preload spring 633: Located inside the cavity of pin 631, sleeved on the outside of connecting pin 635, one end of which abuts against the inner wall step of pin 631, and the other end is connected to the inner end of locking pin 632. In its natural state, preload spring 633 is in a compressed state, pressing the outer end of locking pin 632 out of the outer end of pin 631, making it inclined to insert into locking hole 630; Release handle 634 and connecting pin 635: The outer end of the release handle 634 is connected to the inner end of the locking pin 632 via the connecting pin 635. When the operator pulls the release handle 634, the release handle 634 drives the connecting pin 635 to move, thereby pulling the locking pin 632 axially inward along the pin post 631, compressing the preload spring 633, causing the outer end of the locking pin 632 to exit the locking hole 630, thus releasing the lock on the lower handle 60 and the upper handle 61; when the release handle 634 is released, the preload spring 633 returns to its original shape, pushing the locking pin 632 to extend again and insert into the locking hole 630, thus locking.

[0025] Electronic control and sensing systems The electronic control and sensing system is key to achieving active regulation of the vibration isolation mechanism 5. Its core components include sensors, electronic control units (ECUs), and signal transmission lines, as detailed below: Sensor: A MEMS triaxial accelerometer is used, which is fixed to the outer wall of the power supply unit 4 by adhesive or bolts. It can collect vibration acceleration signals of the power supply unit 4 in the X (lateral), Y (longitudinal), and Z (vertical) directions in real time and convert them into electrical signals for output to the electronic control unit. Considering the dust and vibration interference in the construction site working environment, the sensor is equipped with a waterproof and dustproof shell and adopts differential signal transmission to improve anti-interference ability. Electronic Control Unit (ECU): Employing an STM32 series microcontroller as the core controller, it integrates a signal acquisition module, a data processing module, a motor 2 drive module, and a power management module. The signal acquisition module receives electrical signals output from the sensors and performs preprocessing such as filtering and amplification. The data processing module converts the preprocessed signals into vibration frequency and displacement, comparing them with a preset vibration threshold (set according to the vibration resistance performance of power supply unit 4, e.g., displacement ≤ 2mm). If the detected vibration displacement exceeds the threshold, the motor 2 drive module outputs a PWM (Pulse Width Modulation) signal to the auxiliary motor 55 to control its speed and direction, achieving active regulation. The power management module is responsible for converting the voltage of power supply unit 4 (e.g., 48V) into the operating voltage required by the ECU and sensors (e.g., 5V, 3.3V), ensuring stable system operation. Signal transmission lines: Shielded wires are used for connections between the sensor and the ECU, and between the ECU and the auxiliary motor 55, to prevent electromagnetic interference from the compaction operation from affecting signal transmission. Additionally, the wires are wrapped with wear-resistant corrugated tubing to prevent wear or damage during operation.

[0026] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A layered compaction device for building backfill soil, comprising: Main body (1), on which a motor (2) is provided; A tamping plate (3) is set below the main body (1) and is controlled by a motor (2) to perform tamping operations; Power supply unit (4), which is located on one side of the main body (1) to provide the power required for the operation of the motor (2); Its characteristic is that it further includes: Vibration isolation mechanism (5), which is disposed between power supply unit (4) and main body (1) for connecting power supply unit (4) and main body (1); A folding handle (6) is mounted on the main body (1); The vibration isolation mechanism (5) absorbs vibration energy during the compaction operation through the combined action of elastic support and damping.

2. The layered compaction device for building backfill soil according to claim 1, characterized in that, The vibration isolation mechanism (5) further includes: The connecting rod connection part, the connecting mechanism includes an upper connecting rod (50), a lower connecting rod (51) and a support connecting rod (52); An elastic support member (53) is provided on the main body (1) to provide elastic support for the connecting rod connection part; A damper (54) is provided on the main body (1) to absorb vibration energy and prevent the elastic support (53) from resonating. The upper connecting rod (50), lower connecting rod (51) and support connecting rod (52) together with the main body (1) form a movable parallelogram structure. The power supply unit (4) is set on the support connecting rod (52). The connecting part of the connecting rod swings synchronously with the compaction operation and the swing axis is parallel to the vibration direction.

3. The layered compaction device for building backfill soil according to claim 2, characterized in that, Also includes: An auxiliary motor (55) is mounted on the main body (1); The auxiliary motor (55) is used to drive the upper connecting rod (50) to rotate actively to counteract the vibration displacement of the power supply unit (4).

4. The layered compaction device for building backfill soil according to claim 1, characterized in that, The folding handle (6) also includes: The lower handle (60) is fixedly connected to the main body (1) at its bottom end; The upper handle (61) is rotatably connected to the lower handle (60) by a support connecting pin (62). Locking parts (63) are distributed at the top of the lower handle (60) and the bottom of the upper handle (61) for locking and releasing the rotational movement of the lower handle (60) and the upper handle (61).

5. A layered compaction device for building backfill soil according to claim 4, characterized in that, The locking part (63) further includes: A locking hole (630) is provided at the upper end of the lower handle (60); A pin (631) is fixedly disposed at the bottom end of the upper handle (61), and a locking pin (632) is provided in the pin (631) that moves along the axial direction of the pin (631). A preload spring (633) is provided in the pin (631) and the preload spring (633) presses the outer end of the locking pin (632) out of the outer end of the pin (631); Release handle (634), the outer end of which is movably connected to the inner end of pin (631); When the locking pin (632) is inserted into the pin hole, the rotational movement of the lower handle (60) and the upper handle (61) is locked, and the release handle (634) is connected to the inner end of the locking pin (632) through the connecting pin (635).

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