Deep foundation pit narrow and fat groove backfilling device

Abstract

The utility model relates to the technical field of fertilizer groove backfilling, concretely is a deep foundation pit narrow fertilizer groove backfilling device, the device includes support frame, the hopper that sets up on support frame, the hopper is slidably connected on support frame, the driving mechanism that is used for driving the hopper movement is set up on support frame, the edge fixed connection sliding plate of hopper, the sliding plate is slidably connected on the frame of support frame, the lower surface of support frame sets up first moving wheel. The device can adjust the hopper according to the width of fertilizer groove, move the hopper to the central position of fertilizer groove, and uniformly fill the filling material into the fertilizer groove. Moreover, the device can connect the string drum or the conveying pipe according to the construction requirement.

Description

Technical Field

[0001] This utility model relates to the field of backfilling technology for deep foundation pits, specifically a backfilling device for narrow deep foundation pits. Background Technology

[0002] With the rapid pace of urbanization in my country, construction companies must address the challenges of building in confined urban spaces, particularly deep foundation pit backfilling. In such cases, companies must comprehensively consider building requirements, surrounding geological conditions, and employ scientifically sound backfilling techniques. In practice, deep foundation pit backfilling requires large machinery, which is challenging in site-limited environments. In some areas with limited space, backfilling vehicles cannot maneuver within the site, and the narrow width and depth of the deep foundation pits further hinder the use of large construction machinery, significantly reducing construction efficiency.

[0003] In the existing narrow trough construction process, the backfilling device needs to be set up at the top of the trough first. The backfilling material is fed through the backfilling device and enters the bottom conveyor cylinder through the funnel at the top of the backfilling device. Finally, the backfilling material falls down along each conveyor cylinder to the designated position at the bottom of the trough. However, the existing backfilling device cannot be adjusted according to the width of the trough.

[0004] Chinese Patent 202321359990.9 discloses "A Device for Backfilling Excavation Pit Trench" (Publication No. CN219973227 U). This device includes a top plate positioned above the excavation pit. Two threaded blocks are located at the bottom of the top plate, and lifting leg assemblies are located on both the front and rear sides of the bottom of the two threaded blocks to support the top plate. A through hole is opened on the rear side of the top of the top plate. However, this device has some drawbacks: in on-site construction, the width of the trench is not uniform, and the lifting leg assemblies of this device cannot move on the top plate. Therefore, this device is only applicable to trenches of a specific width and cannot be adjusted according to the width of the trench, resulting in low applicability. Utility Model Content

[0005] To address the problems of the prior art, this invention provides a backfilling device for deep foundation pits and narrow trenches, which can be adjusted according to the width of the trench, thus improving the applicability of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a backfilling device for a deep foundation pit and a narrow trench, comprising a support frame and a hopper disposed on the support frame, the hopper being slidably connected to the support frame, a driving mechanism for moving the hopper being disposed on the support frame, a sliding plate being fixedly connected to the edge of the hopper, the sliding plate being slidably connected to the frame of the support frame, and a first moving wheel being disposed on the lower surface of the support frame.

[0007] With the above structural design, after the staff installs the support frame at the top of the fertilizer tank, the device can adjust the feeding hopper according to the width of the fertilizer tank and move the feeding hopper to the center of the fertilizer tank, so as to make it easier to fill the fertilizer tank evenly.

[0008] Preferably, the driving mechanism includes a hinge seat fixedly connected to the outer wall of the hopper, a first hinge rod and a second hinge rod both hinged to the hinge seat, a first slider hinged to the first hinge rod, a second slider hinged to the second hinge rod, and a bidirectional screw threaded through the first slider and the second slider. The first hinge rod and the second hinge rod are symmetrically arranged. The first slider and the second slider are both slidably connected to a slide groove. The bidirectional screw is rotatably connected to the slide groove. The slide groove is fixedly connected to the support frame.

[0009] With the above structural design, rotating the bidirectional lead screw allows the first and second sliders to move relative to each other, and the first and second hinge rods can then retract or expand, thereby driving the hopper to move on the support frame. The operation is simple and convenient.

[0010] Preferably, a mounting plate is fixedly connected to the opening at the lower end of the hopper, the mounting plate is slidably connected to the frame of the support frame, and the mounting plate has multiple connection holes arranged in a ring on the mounting plate.

[0011] With the above structural design, a conveying pipe can be installed below the hopper, and the conveying pipe can also be removed from the device.

[0012] Preferably, sliding blocks are symmetrically arranged on the lower surface of the mounting plate, and hooks are fixedly connected to the sliding blocks, which are slidably connected to the mounting plate.

[0013] The above structural design allows the device to hook onto the stringing drum, enabling it to be used together with the stringing drum and improving its applicability.

[0014] Preferably, the lower surface of the mounting plate is fixedly connected to a mounting groove that matches the sliding block, the sliding block is slidably connected to the mounting groove, the tail end of the spring is fixedly connected to the groove wall of the mounting groove, and the head end of the spring is fixedly connected to the sliding block.

[0015] The above structural design allows for adjustment of the relative distance between the hooks according to the diameter of the spool, making the device suitable for spools of different diameters.

[0016] Preferably, a sleeve is slidably connected to the lower edge of the support frame, a second movable wheel is fixedly connected to the sleeve, and a limiting screw is threaded through the sleeve wall.

[0017] With the above structural design, the distance between the first and second moving wheels can be adjusted according to the width of the fertilizer trough. After the device is set up on the upper end of the fertilizer trough, the first and second moving wheels can stand on the open ground on both sides of the fertilizer trough, thereby enabling the device to move above the fertilizer trough.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This device can adjust the feeding hopper according to the width of the fertilizer tank, moving the feeding hopper to the center of the fertilizer tank to facilitate the even filling of the fertilizer tank with filler material; in addition, this device can be connected to a stringer or conveying pipe according to construction needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This utility model Figure 1 Schematic diagram of the structure in sectional view (AA); Figure 4 This is a schematic diagram of the connecting tube structure of this utility model; Figure 5 This is a schematic diagram of the connecting conveying pipe of this utility model; Detailed Implementation

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a technical solution: a backfilling device for deep foundation pits and narrow trenches, including a support frame 1 and a hopper 2 disposed on the support frame 1. The support frame 1 is a cuboid frame structure. The hopper 2 is slidably connected to the support frame 1. A driving mechanism for moving the hopper 2 is disposed on the support frame 1. A sliding plate 21 is fixedly connected to the edge of the hopper 2. The sliding plate 21 is slidably connected to the side frame of the support frame 1. The sliding plate 21 has an L-shaped cross-section and is symmetrically disposed on both sides of the hopper 2. The sliding plate 21 is slidably connected to the upper side frame of the support frame 1. A first moving wheel 3 is disposed on the lower surface of the support frame 1. Four sets of first moving wheels 3 are disposed, with one first moving wheel 3 fixedly connected to each of the four corners of the lower end of the support frame 1.

[0021] Please see Figure 1 , Figure 2The driving mechanism includes a hinge seat 41 fixedly connected to the outer wall of the hopper 2, a first hinge rod 42 and a second hinge rod 43 both hinged to the hinge seat 41, a first slider 44 hinged to the first hinge rod 42, a second slider 45 hinged to the second hinge rod, and a bidirectional lead screw 46 threaded through the first slider 44 and the second slider 45. The first hinge rod 42 and the second hinge rod 43 are symmetrically arranged to ensure that the first hinge rod 42 and the second hinge rod 43 are at the same level. On the line, the end of the second hinge rod 43 has a slot that matches the first hinge rod 42. The first hinge rod 42 is hinged to the slot of the second hinge rod 43, and the second hinge rod 43 is then hinged to the hinge seat 41. The first slider 44 and the second slider 45 are both slidably connected to the slide groove 47. The bidirectional lead screw 46 is rotatably connected to the slide groove 47. The slide groove 47 is fixedly connected to the support frame 1. In order to facilitate the rotation of the bidirectional lead screw 46, the end of the bidirectional lead screw 46 is fixedly connected to the handwheel 49.

[0022] Please see Figure 1 A mounting plate 5 is fixedly connected to the opening at the lower end of the hopper 2. The mounting plate 5 is slidably connected to the side frame of the support frame 1. The mounting plate 5 has multiple connecting holes 501 arranged in a ring on the mounting plate 5. The mounting plate 5 is slidably connected to the side frame at the lower end of the support frame 1.

[0023] Sliding blocks 511 are symmetrically arranged on the lower surface of the mounting plate 5. Hooks 512 are fixedly connected to the sliding blocks 511, and the sliding blocks 511 are slidably connected to the mounting plate 5.

[0024] Please see Figure 3 The lower surface of the mounting plate 5 is fixedly connected to a mounting groove 513 that matches the sliding block 511. The sliding block 511 is slidably connected to the mounting groove 513. The tail end of a spring 514 is fixedly connected to the groove wall of the mounting groove 513, and the head end of the spring 514 is fixedly connected to the sliding block 511. Figure 3 The tail end of the mounting groove 513 is closed, and the tail end of the spring 514 is fixedly connected to the closed end of the mounting groove 513. To prevent the spring 514 from bending, the spring 514 can be replaced by a spring rod.

[0025] Please see Figure 1 A sleeve 6 is slidably connected to the lower edge of the support frame 1. Sleeves 6 are fitted onto a set of parallel long edges at the lower end of the support frame 1. The sleeves 6 are connected by a connecting rod 63. A second moving wheel 61 is fixedly connected to each sleeve 6. A limiting screw 62 is threaded through the wall of each sleeve 6. When one sleeve 6 is moved, the other sleeve 6 will also be moved.

[0026] Working principle: First, the operator needs to measure the width of the fertilizer tank. Then, the operator adjusts the position of the feeding hopper 2 according to the width of the fertilizer tank. The operator turns the handwheel 49, the double-acting screw 46 rotates, the first slider 44 and the second slider 45 move relative to each other, the first hinge rod 42 and the second hinge rod 43 push the feeding hopper 2 to move. After the feeding hopper 2 moves to the appropriate position, the operator stops turning the handwheel 49. Next, the operator moves the sleeve 6 so that the distance between the first moving wheel 3 and the second moving wheel 61 is equal, so that the first moving wheel 3 and the second moving wheel 61 can stand upright at the top of the fertilizer tank. like Figure 4 As shown, when a spool is needed to convey filling material, the worker moves the hook 512 and hooks the spool onto the hook 512; like Figure 5 As shown, when a conveying pipe is needed to convey filler material, the operator connects the conveying pipe flange to the mounting plate 5 through the connection hole 501.

[0027] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.

[0028] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A backfilling device for a deep foundation pit and narrow trench, comprising a support frame (1) and a hopper (2) disposed on the support frame (1), characterized in that: The hopper (2) is slidably connected to the support frame (1). A drive mechanism for driving the hopper (2) to move is provided on the support frame (1). A sliding plate (21) is fixedly connected to the edge of the hopper (2). The sliding plate (21) is slidably connected to the side frame of the support frame (1). A first moving wheel (3) is provided on the lower surface of the support frame (1). The drive mechanism includes a hinge seat (41) fixedly connected to the outer wall of the hopper (2), a first hinge rod (42) with its ends hinged to the hinge seat (41), and a second... Two hinge rods (43), a first slider (44) hinged to the first hinge rod (42), a second slider (45) hinged to the second hinge rod, and a bidirectional screw (46) threaded through the first slider (44) and the second slider (45). The first hinge rod (42) and the second hinge rod (43) are symmetrically arranged. The first slider (44) and the second slider (45) are both slidably connected to the slide groove (47). The bidirectional screw (46) is rotatably connected to the slide groove (47). The slide groove (47) is fixedly connected to the support frame (1).

2. The backfilling device for a narrow trench in a deep foundation pit according to claim 1, characterized in that: The lower end of the hopper (2) is fixedly connected to the mounting plate (5), which is slidably connected to the frame of the support frame (1). The mounting plate (5) has multiple connecting holes (501) arranged in a ring on the mounting plate (5).

3. The backfilling device for a narrow trench in a deep foundation pit according to claim 2, characterized in that: Sliding blocks (511) are symmetrically arranged on the lower surface of the mounting plate (5), and hooks (512) are fixedly connected to the sliding blocks (511). The sliding blocks (511) are slidably connected to the mounting plate (5).

4. The backfilling device for a narrow trench in a deep foundation pit according to claim 3, characterized in that: The lower surface of the mounting plate (5) is fixedly connected to the mounting groove (513) that matches the sliding block (511). The sliding block (511) is slidably connected to the mounting groove (513). The tail end of the spring (514) is fixedly connected to the groove wall of the mounting groove (513). The head end of the spring (514) is fixedly connected to the sliding block (511).

5. A backfilling device for narrow trenches in deep foundation pits according to any one of claims 1 to 4, characterized in that: A sleeve (6) is slidably connected to the lower edge of the support frame (1), a second moving wheel (61) is fixedly connected to the sleeve (6), and a limiting screw (62) is threaded through the sleeve (6) wall.

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