Landfill equipment for earthwork stone blasting
By designing a landfill device for earthwork blasting, which automatically compacts sand and gravel using injection pipes and motor-driven components, the problem of cumbersome small-scale borehole landfill operations in existing technologies has been solved, improving operational efficiency and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-10
AI Technical Summary
The current method of filling small and medium-sized boreholes for earthmoving and rock blasting is cumbersome, time-consuming, and labor-intensive, and its practicality is poor.
A landfill device for earthwork blasting has been designed, including a material injection pipe, a positioning sleeve, a top support plate, and a drive assembly. Sand and gravel are injected into the borehole through the material injection pipe, and automatic compaction is achieved by using the top support plate and the motor drive assembly, thus avoiding manual operation.
It enables a fast and convenient sand and gravel landfill process, improves operational efficiency and practicality, and reduces the intensity of manual labor.
Smart Images

Figure CN223985659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of earthwork and rock blasting technology, specifically to a landfill device for earthwork and rock blasting. Background Technology
[0002] In earthmoving and rock blasting operations, drilling rigs are used to drill blasting holes, with the diameter and depth conforming to design requirements. After drilling, explosives are loaded into the holes according to the blasting design requirements, and the holes are then filled with appropriate materials (such as stemming material, sand, soil, etc.). The main purpose of this process is to ensure that the energy generated during the explosion can safely and effectively act on the intended target.
[0003] Currently, filling small boreholes requires workers to gradually shovel sand and gravel into the borehole, and then use a hammer to compact the sand and gravel in the borehole. The whole process is cumbersome, time-consuming, and labor-intensive, and its practicality is poor. Utility Model Content
[0004] The purpose of this utility model is to provide a landfill device for earthwork blasting in order to solve the above-mentioned problems, as detailed below.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] This utility model provides a landfill device for blasting earth and rock, including an injection pipe, a positioning sleeve fitted on the outer side of the injection pipe, an end cap detachably installed at one end of the injection pipe, four support plates fixedly connected to the circumference of the positioning sleeve and distributed along its axial direction, and the four support plates are evenly distributed around the circumference with the axis of the positioning sleeve as the reference, the positioning sleeve is provided with a support structure for driving the support plates to open, an extension plate is fixedly connected to the lower side of the end face of the positioning sleeve, and the end of the extension plate is provided with a drive component for driving the injection pipe to reciprocate within the positioning sleeve.
[0007] Preferably, the surface of the end cap is fixedly connected with several protrusions, and the end of the injection tube is provided with a thread that matches the end cap.
[0008] Preferably, the support structure includes a compression ring, which is threaded to the outside of the positioning sleeve. The compression ring is frustoconical in shape and engages with the wedge-shaped support plate.
[0009] Preferably, the inner wall of the positioning sleeve is rotatably connected with four sets of rollers, each set having two rollers distributed along its axial direction, and the outer wall of the injection tube has four movable grooves evenly divided around its circumference with its axis as a reference, and the four sets of rollers are respectively located in the four movable grooves.
[0010] Preferably, the drive assembly includes a disc rotatably connected to the upper surface of the extension plate, a protruding post fixedly connected to one side of the upper surface of the disc, a motor for driving the disc to rotate fixedly installed on the bottom surface of the extension plate, a horizontal plate provided on the lower side of the injection tube, a groove for fitting the protruding post on the bottom surface of the horizontal plate, and a bolt connector for adjusting the position of the horizontal plate on the lower side of the injection tube.
[0011] Preferably, the bolted connector includes through holes at both ends of the horizontal plate, and bolts are inserted into both through holes. Several sets of nuts that are threadedly connected to the bolts are fixedly connected to one side of the bottom surface of the injection tube, and the number of nuts in each set is two.
[0012] Preferably, the lower ends of both perforations are countersunk.
[0013] The beneficial effects are:
[0014] By adding sand and gravel into the injection pipe, the sand and gravel slide into the borehole through the injection pipe. Then, the injection pipe is removed and the end cap is installed, so that the positioning sleeve is located inside the borehole. By rotating the extrusion ring, it moves towards the four support plates, causing the four support plates to open simultaneously and abut against the inner wall of the borehole. Then, the motor is controlled to rotate, causing the injection pipe to move back and forth in the positioning sleeve, compacting the sand and gravel inside the borehole. The whole operation process is quick and convenient. Because the position of the injection pipe is adjustable, sand and gravel at different depths can be compacted, avoiding manual force and improving practicality. Attached Figure Description
[0015] 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.
[0016] Figure 1 This is a perspective view of the present invention;
[0017] Figure 2 This is a bottom perspective view of the injection tube of this utility model;
[0018] Figure 3 This is a perspective view of the positioning sleeve of this utility model;
[0019] Figure 4 This is a three-dimensional disassembled view of the end cap of this utility model.
[0020] The annotations in the attached figures are explained as follows:
[0021] 1. Injection tube; 2. Positioning sleeve; 201. Support plate; 202. Extrusion ring; 203. Roller; 204. Movable groove; 3. End cap; 301. Thread; 302. Protrusion; 4. Drive assembly; 401. Disc; 402. Motor; 403. Horizontal plate; 404. Groove; 405. Protrusion; 5. Bolt connector; 501. Through hole; 502. Bolt; 503. Nut; 6. Extension plate. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] See Figures 1-4 As shown, this utility model provides a landfill device for earthwork blasting, including a material injection pipe 1, a positioning sleeve 2 sleeved on the outside of the material injection pipe 1, an end cap 3 detachably installed at one end of the material injection pipe 1, four support plates 201 distributed along its axial direction fixedly connected to the circumferential surface of the positioning sleeve 2, and the four support plates 201 are evenly distributed circumferentially with the axis of the positioning sleeve 2 as the reference, the positioning sleeve 2 is provided with a support structure for driving the support plates 201 to open, an extension plate 6 is fixedly connected to the lower side of the end face of the positioning sleeve 2, and a drive component 4 is provided at the end of the extension plate 6 for driving the material injection pipe 1 to reciprocate within the positioning sleeve 2.
[0024] Reference Figure 4 As shown, the surface of the end cap 3 is fixedly connected with several protrusions 302. The end of the injection pipe 1 is provided with a thread 301 that is compatible with the end cap 3. When injecting sand and gravel, the end cap 3 can be removed. When it is necessary to compact the sand and gravel, the end cap 3 can be installed. The protrusions 302 can improve the compaction effect.
[0025] Reference Figure 3 As shown, the support structure includes a compression ring 202, which is threaded to the outside of the positioning sleeve 2. The compression ring 202 is frustoconical and wedge-shaped with the support plate 201. The compression ring 202 can be rotated outside the positioning sleeve 2 by an auxiliary rod or auxiliary tool, so that the compression ring 202 moves towards the support plate 201 outside the positioning sleeve 2. As the compression ring 202 moves, it can support the four support plates 201 to expand outward at the same time, so that the ends of the support plates 201 penetrate into the inner wall of the drill hole, thereby fixing the positioning sleeve 2.
[0026] As an optional implementation, the inner wall of the positioning sleeve 2 is rotatably connected with four sets of rollers 203. Each set of rollers 203 consists of two rollers distributed along its axis. The outer wall of the injection tube 1 is provided with four movable grooves 204 evenly divided around its axis. The four sets of rollers 203 are located in the four movable grooves 204 respectively, which makes the injection tube 1 move more smoothly when it reciprocates in the positioning sleeve 2. At the same time, the design of two rollers 203 makes the injection tube 1 more stable when it reciprocates.
[0027] Reference Figure 2-3 As shown, the drive assembly 4 includes a disc 401 rotatably connected to the upper surface of the extension plate 6. A protrusion 405 is fixedly connected to one side of the upper surface of the disc 401. A motor 402 for driving the disc 401 to rotate is fixedly installed on the bottom surface of the extension plate 6. A horizontal plate 403 is provided on the lower side of the injection pipe 1. A groove 404 that fits with the protrusion 405 is opened on the bottom surface of the horizontal plate 403. A bolt connector 5 for adjusting the position of the horizontal plate 403 is provided on the lower side of the injection pipe 1. When the motor 402 drives the disc 401 to rotate, the protrusion 405 on its surface moves back and forth in the groove 404, thereby driving the injection pipe 1 connected to the horizontal plate 403 to move back and forth in the borehole to compact the sand and gravel.
[0028] Furthermore, the bolted connector 5 includes through holes 501 at both ends of the horizontal plate 403, and bolts 502 are inserted into each of the two through holes 501. Several sets of nuts 503 that are threadedly connected to the bolts 502 are fixedly connected to one side of the bottom surface of the injection pipe 1. There are two nuts 503 in each set. The position of the horizontal plate 403 can be adjusted according to the range of motion of the injection pipe 1 (when the position of the horizontal plate 403 is moved, the disc 401 and the protrusion 405 rotate with it). Then, the bolts 502 are inserted into the through holes 501 and the nuts 503 at the same time and rotated to fix the position of the horizontal plate 403. When the position of the horizontal plate 403 is adjusted, the range of motion of the injection pipe 1 also changes accordingly, thereby achieving the purpose of compacting sand and gravel at different locations.
[0029] As an optional implementation method, such as Figure 2 The nut 503 shown in the figure may protrude outwards, which may affect the movement of the injection tube 1. Therefore, the problem can be solved by opening a threaded hole on the wall of the injection tube 1 that matches the thread of the bolt 502.
[0030] Specifically, the lower ends of both perforations 501 are countersunk, which prevents the ends of bolts 502 from protruding outwards and affecting the free movement of the protruding post 405 after the bolts 502 are installed.
[0031] The working principle of this utility model:
[0032] First, remove the end cap 3 and insert the injection pipe 1 into the inclined drill hole. By adding sand and gravel into the injection pipe 1, the sand and gravel slide into the drill hole on the smooth inner wall of the injection pipe 1. After adding a certain amount of sand and gravel, remove the injection pipe 1 and install the end cap 3. Then insert it into the drill hole so that the positioning sleeve 2 is located inside the drill hole. By rotating the extrusion ring 202, move it towards the four support plates 201. Under the wedge-shaped fit, drive the four support plates 201 to open simultaneously and abut against the inner wall of the drill hole, so that the positioning sleeve 2 is fixed inside the drill hole. Then control the motor 402 to rotate, drive the injection pipe 1 to move back and forth in the positioning sleeve 2, and compact the sand and gravel inside the drill hole.
[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. An embankment apparatus for earthwork rock blasting, characterized by: The utility model provides an injection tube (1) is provided with a positioning sleeve (2) on the outside, and one end of the injection tube (1) is detachably installed with an end cover (3), four supporting pieces (201) are fixedly connected on the circumferential surface of the positioning sleeve (2) and are circumferentially and equidistantly distributed along the axial direction of the positioning sleeve (2), a supporting structure is arranged on the positioning sleeve (2) to drive the supporting pieces (201) to open, an extension plate (6) is fixedly connected to the lower end surface of the positioning sleeve (2), and a driving assembly (4) is arranged on the end of the extension plate (6) to drive the injection tube (1) to reciprocate in the positioning sleeve (2).
2. A fill-up device for earthwork rock blasting according to claim 1, characterized in that: A plurality of convex heads (302) are fixedly connected to the surface of the end cover (3), and a threaded hole (301) is formed in the end of the injection tube (1) and matched with the end cover (3).
3. The fill-up apparatus for earthwork rock blasting according to claim 1, characterized in that: The supporting structure comprises an extrusion ring (202) which is threadedly connected to the outside of the positioning sleeve (2), and the extrusion ring (202) is designed in a circular truncated cone shape and wedge-shaped matched with the supporting pieces (201).
4. The fill-up apparatus for earthwork rock blasting according to claim 1, characterized in that: Four groups of rollers (203) are rotatably connected to the inner wall of the positioning sleeve (2), each group of the rollers (203) is two in number and is distributed along the axial direction, four movable grooves (204) are formed in the outer wall of the injection tube (1) and are circumferentially and equidistantly distributed along the axial direction of the injection tube (1), and the four groups of rollers (203) are respectively arranged in the four movable grooves (204).
5. The fill-up apparatus for earthwork rock blasting according to claim 1, characterized in that: The driving assembly (4) comprises a disc (401) rotatably connected to the upper surface of the extension plate (6), a convex column (405) is fixedly connected to one side of the upper surface of the disc (401), a motor (402) is fixedly installed on the bottom surface of the extension plate (6) to drive the disc (401) to rotate, a horizontal plate (403) is arranged on the lower side of the injection tube (1), a recess (404) is formed in the bottom surface of the horizontal plate (403) and matched with the convex column (405), and a bolt connecting piece (5) is arranged on the lower side of the injection tube (1) to adjust the position of the horizontal plate (403).
6. A fill for earthwork rock blasting according to claim 5, characterized in that: The bolt connecting piece (5) comprises two through holes (501) formed in the two ends of the horizontal plate (403), a bolt (502) is inserted into each of the two through holes (501), a plurality of groups of nuts (503) are fixedly connected to one side of the bottom surface of the injection tube (1) and threadedly connected with the bolt (502), and each group of the nuts (503) is two in number.
7. A fill for earthwork rock blasting according to claim 6, characterized in that: The lower ends of the two through holes (501) are designed as counterbores.