Narrow underground space backfilling structure with high applicability
By designing backfill structures with components such as support shells and guide rings, the problem of equipment being difficult to adapt to in narrow, deep spaces was solved, enabling flexible soil compaction and backfilling operations and improving the backfilling efficiency in narrow underground spaces.
Patent Information
- Application Number
- CN202423183521.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing underground backfilling equipment is difficult to adapt flexibly in narrow, deep spaces, making compaction operations difficult and traditional equipment difficult to access or operate effectively.
A backfilling structure was designed, comprising a support shell, guide ring, support rod, motor, screw, cylinder, guide frame, sliding frame, and connecting frame. The support rod can be extended and retracted through the cooperation of the cylinder and motor to adapt to backfilling areas of different sizes, and the soil is compacted by the screw and compaction block.
It enables flexible adjustment of the footprint in narrow underground spaces, improving the efficiency and adaptability of backfilling operations and enabling it to adapt to complex and ever-changing site environments.
Smart Images
Figure CN223688937U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underground space backfilling field especially to narrow underground space backfilling structure with high applicability. BACKGROUND
[0002] With the rapid advance of urban construction, the development and utilization of underground space resources become increasingly common, especially in the bustling city core area. These areas often face the problem of small foundation pit space. Once the underground main structure construction is completed, the subsequent backfilling operation faces many challenges. The backfilling area not only has significant vertical depth, but also has very limited horizontal space, making it difficult for traditional large mechanical equipment to operate, and even unable to enter the work site.
[0003] The existing underground backfilling equipment has difficulty in ramming operation when dealing with such deep and narrow space. Due to the excessive vertical depth, the ramming equipment is difficult to reach the ideal operating position, and lacks sufficient flexibility to adapt to the complex and variable site environment.
[0004] Therefore, it is necessary to design a narrow underground space backfilling structure with high applicability. SUMMARY
[0005] In order to overcome the lack of flexibility, the utility model provides a narrow underground space backfilling structure with high applicability.
[0006] A narrow underground space backfilling structure with high applicability comprises a support shell, a guide ring, a support rod, a motor, a screw rod, a flattening block, a gas cylinder, a guide frame, a sliding frame and a connecting frame. The lower part of the support shell is connected with a cross-shaped guide ring. Four support rods are uniformly and interval connected in the guide ring. The upper part of the support shell is installed with a motor. The output end of the motor is connected with a screw rod. The lower end of the screw rod is connected with the flattening block through threads. The outer side of the support shell is connected with a gas cylinder. The piston rod of the gas cylinder is connected with the guide frame. The guide frame surrounds the outer side of the support shell. Four sliding frames are slidingly connected on the guide frame. The lower part of the four sliding frames extends into the guide ring and is connected with the adjacent support rod. The lower outer side of the support shell is connected with a connecting frame. The sliding frame and the connecting frame are slidingly matched. The lower part of the four sliding frames extends into the guide ring and is connected with the adjacent support rod.
[0007] More preferably, it further comprises a spring. The sliding frame and the guide ring are elastically connected through the spring. The spring is sleeved on the outer side of the adjacent support rod.
[0008] More preferably, it further comprises a backfilling frame. The backfilling frame is further connected on the guide ring.
[0009] More preferably, it further comprises a mounting block. The bottom of the support rod is connected with a mounting block.
[0010] More preferably, guide rods are symmetrically connected inside the support shell, and the flattening block is slidably connected with the two guide rods.
[0011] The utility model has the advantages and obvious progress that:
[0012] The utility model discloses a backfilling structure for narrow underground space, which comprises a support shell, a flattening block, a guide ring, a support rod, a motor, a screw rod, a guide frame, a sliding frame, a connecting frame and a spring. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a three-dimensional structure schematic view of the utility model.
[0014] Fig. 2 It is a three-dimensional structure schematic view of the motor, the screw rod and the flattening block and other parts of the utility model.
[0015] Fig. 3 It is a three-dimensional structure schematic view of the guide frame, the sliding frame and the connecting frame and other parts of the utility model.
[0016] The meanings of the reference signs in the drawings are as follows: 1, support shell, 2, guide ring, 3, support rod, 4, motor, 5, screw rod, 6, flattening block, 7, cylinder, 8, guide frame, 9, sliding frame, 10, connecting frame, 11, spring, 12, backfilling frame, 13, mounting block. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0018] Embodiment: a narrow underground space backfilling structure with high applicability, comprising a support shell, a flattening block, a guide ring, a support rod, a motor, a screw rod, a guide frame, a sliding frame, a connecting frame and a spring. Figs. 1-3As shown, including support shell 1, guide ring 2, support rod 3, motor 4, screw 5, flat block 6, cylinder 7, guide frame 8, sliding frame 9, connecting frame 10, spring 11, backfill frame 12 and mounting block 13, the lower part of the support shell 1 is connected with the cross-shaped guide ring 2, the guide ring 2 is uniformly and spacedly connected with four support rods 3, the upper part of the support shell 1 is mounted with the motor 4, the output end of the motor 4 is connected with the screw 5, the lower end of the screw 5 is connected with the flat block 6 through thread, the inside of the support shell 1 is connected with the guide rod symmetrically left and right, the flat block 6 is slidably connected with the two guide rods to ensure the stability of the flat block 6 moving up and down, the outside of the support shell 1 is connected with the cylinder 7, the piston rod of the cylinder 7 is connected with the guide frame 8, the guide frame 8 surrounds the outside of the support shell 1, four sliding frames 9 are slidably connected on the guide frame 8, the lower outside of the support shell 1 is connected with the connecting frame 10, the sliding frame 9 is slidably matched with the connecting frame 10, the lower part of the four sliding frames 9 extends into the guide ring 2 and is connected with the adjacent support rod 3, the sliding frame 9 and the guide ring 2 are elastically connected through the spring 11, the spring 11 is sleeved outside the adjacent support rod 3, the backfill frame 12 is further connected on the guide ring 2, the opening of the backfill frame 12 is inclined, so that the soil falls better, the backfill frame 12 surrounds the flat block 6, the bottom of the support rod 3 is connected with the mounting block 13, which is convenient for fixing the support rod 3.
[0019] When the device needs to be used, first, adjust the placement position of the support rod 3 according to the specific space size. When adjustment is needed, start the cylinder 7, the piston rod of the cylinder 7 is elongated, driving the guide frame 8 to move downward. In this process, the guide frame 8 will push the sliding frame 9 to move outward along the sliding path of the connecting frame 10, so that the sliding frame 9 drives the support rod 3 to move outward, and the spring 11 is compressed accordingly. In this way, the distance adjustment between the support rod 3 and the flat block 6 can be realized to adapt to different sizes of backfill area. After adjustment, place the backfill structure in the area that needs to be backfilled, then fill the soil from the backfill frame 12 until the soil falls into the backfill pit. When the soil in the pit is added to the appropriate height, start the motor 4, the motor 4 drives the screw 5 to rotate, thereby driving the flat block 6 to move up and down along the guide rod to compact the soil in the backfill pit. Repeat the operation to realize the backfill operation.
[0020] When the backfill work is completed, turn off the motor 4, then control the piston rod of the cylinder 7 to retract, driving the guide frame 8 to move upward. At the same time, the guide frame 8 also drives the sliding frame 9 to move inward along the sliding path of the connecting frame 10, under the action of the spring 11 elastic reset, driving the support rod 3 to move inward and retract. In this way, the retraction operation of the support rod 3 can be realized. By controlling the elongation and shortening of the piston rod of the cylinder 7, the support rod 3 can be driven to extend and retract to facilitate the adjustment of the floor area of the backfill structure, thereby adapting to the backfill work of different underground spaces.
[0021] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A highly adaptable backfill structure for narrow underground spaces, characterized in that, The system includes a support shell (1), a guide ring (2), support rods (3), a motor (4), a screw (5), a flattening block (6), a cylinder (7), a guide frame (8), a sliding frame (9), and a connecting frame (10). The lower part of the support shell (1) is connected to a cross-shaped guide ring (2). Four support rods (3) are slidably connected at even intervals inside the guide ring (2). The upper part of the support shell (1) is equipped with a motor (4). The output end of the motor (4) is connected to a screw (5). The lower end of the screw (5) The support shell (1) is connected to the flattening block (6) by threads. A cylinder (7) is connected to the outside of the support shell (1). The piston rod of the cylinder (7) is connected to the guide frame (8). The guide frame (8) surrounds the outside of the support shell (1). Four sliding frames (9) are slidably connected on the guide frame (8). A connecting frame (10) is connected to the lower outer side of the support shell (1). The sliding frames (9) and the connecting frame (10) are slidably engaged. The lower parts of the four sliding frames (9) extend into the guide ring (2) and are connected to the adjacent support rod (3).
2. The highly applicable backfill structure for narrow underground spaces as described in claim 1, characterized in that, It also includes a spring (11), and the sliding frame (9) and the guide ring (2) are elastically connected by the spring (11). The spring (11) is sleeved on the outside of the adjacent support rod (3).
3. The highly applicable backfill structure for narrow underground spaces as described in claim 2, characterized in that, It also includes a backfill box (12), which is connected to the guide ring (2).
4. The highly applicable backfill structure for narrow underground spaces as described in claim 3, characterized in that, It also includes a mounting block (13), and the bottom of the support rod (3) is connected to the mounting block (13).
5. The highly applicable backfill structure for narrow underground spaces as described in claim 1, characterized in that, Inside the support shell (1), guide rods are symmetrically connected on the left and right sides, and the flattening block (6) is slidably connected to the two guide rods.
6. The highly applicable backfill structure for narrow underground spaces as described in claim 3, characterized in that, The opening of the backfill box (12) is inclined.