Earthwork dispensing device with anti-blocking discharge mechanism
By using a combination of mixing and crushing components with multiple structures working together, the problems of difficult material feeding and clogging in traditional earthwork mixing devices have been solved, achieving efficient mixing and continuous material discharge, and improving the quality and efficiency of earthwork mixing.
Patent Information
- Application Number
- CN202521790327.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-08-21
AI Technical Summary
The mixing structure of traditional earthwork mixing equipment cannot apply force to materials from multiple angles and levels, resulting in difficulties in feeding materials, easy adhesion of materials to the inner wall, and easy blockage of the discharge port by larger particles, which affects the mixing quality and efficiency.
The mixing and crushing components employ multiple structures working in tandem, including a scraper support, a spiral feed shaft, a mixing rod, a conical spiral shaft, and a swing rod. By scraping off material from the inner wall, mixing at multiple angles, and crushing and dispersing, the discharge port is prevented from becoming clogged.
It achieves efficient mixing and blending of earth and stone, improves the quality of blending, ensures the continuity and stability of output, reduces material residue and blockage, and improves project efficiency.
Smart Images

Figure CN224928233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of earthwork and rock distribution technology, specifically to an earthwork and rock distribution device with an anti-blocking discharge mechanism. Background Technology
[0002] Earthwork allocation is a crucial and fundamental step in many engineering fields, including infrastructure construction, mining, and land reclamation. Its core purpose is to rationally mix and distribute earthwork materials of different sources and properties according to project needs, meeting specific requirements for material performance and quantity in projects such as roadbed filling, site leveling, and backfilling. With the continuous expansion of project scale and increasingly stringent construction standards, more stringent requirements are being placed on the quality and efficiency of earthwork allocation. High-quality earthwork allocation ensures the stability and durability of engineering structures, effectively reducing subsequent maintenance costs; while efficient allocation shortens project cycles, reduces overall construction costs, and enhances the economic and social benefits of projects. Therefore, the development of advanced earthwork allocation equipment has become a key factor driving the development of this field.
[0003] Earthwork mixing devices use a mixing shell to stir materials. Traditional devices often use a single spiral blade or stirring paddle, and typically operate using stirring blades or a stirring shaft. This makes it impossible to apply force to the materials from multiple angles and levels to push them forward, resulting in difficulties in discharging. Furthermore, during the mixing process, some earthwork materials tend to adhere to the inner wall of the mixing shell of the mixing device, making them difficult to clean. Also, since the earthwork materials may contain large particles of stones, soil, or agglomerates, these larger particles tend to accumulate and get stuck near the discharge port during the discharge process, hindering the normal flow of materials. Therefore, this utility model provides an earthwork mixing device with an anti-blockage discharge mechanism. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an earthwork mixing device with an anti-clogging discharge mechanism. This solves the problems of traditional devices, which typically use a single spiral blade or mixing paddle for stirring. These devices often operate using mixing blades or shafts, making it impossible to apply force to the material from multiple angles and levels to push it forward, leading to difficulties in discharging. Furthermore, during the mixing process, some earthwork material tends to adhere to the inner wall of the mixing shell of the mixing device, making cleaning difficult. Additionally, because the earthwork material may contain large particles of stone, soil, or agglomerates, these larger particles can easily accumulate and become stuck near the discharge port, hindering the normal flow of material.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an earthwork mixing device with an anti-blocking discharge mechanism, comprising a mixing shell, wherein the mixing shell is provided with a mixing mechanism for earthwork mixing, the mixing mechanism comprising:
[0006] A mixing assembly includes a drive shaft that is vertically and rotatably connected to a mixing shell. A connecting bracket is fixed to the upper outer wall of the drive shaft, and a scraper bracket is fixed to one end of the connecting bracket. A spiral feeding shaft is provided on the outer wall of the drive shaft below the connecting bracket. A stirring rod is uniformly fixed inside the spiral feeding shaft, and a spiral stirring shaft is fixed to the end of the stirring rod. A conical spiral shaft is fixed to the lower end of the drive shaft.
[0007] The crushing assembly includes a discharge shell fixed at the lower end of the mixing shell. A fixed bracket is fixed to the side wall of the discharge shell. A swing rod connected to the fixed bracket via a swing assembly is provided inside the fixed bracket. A conical block is fixed to the lower end of the swing rod inside the discharge shell.
[0008] Preferably, the top of the mixing shell is provided with a pair of feed inlets.
[0009] Preferably, the connecting bracket has an L-shaped structure, and the scraper bracket is fitted and connected to the inner wall of the mixing shell.
[0010] Preferably, the swing assembly includes a fixed bracket with a telescopic rod connected by the assembly inside. The inner wall of the fixed bracket is rotatably connected to a support shaft. The outer walls of the support shaft are fixed with connecting rods at both ends. The inner wall of the connecting rod is fixed with a sliding rod. The outer wall of the sliding rod is slidably connected with a slider. The slider is rotatably connected to the telescopic rod. The swing rod is fixedly connected to the center end of the outer wall of the support shaft.
[0011] Preferably, the drive assembly includes a drive rod rotatably connected inside the fixed bracket, one end of the drive rod is fixed to a rotating disk, the telescopic rod is located at the edge of the rotating disk, and the telescopic rod is rotatably connected to the rotating disk through a bearing.
[0012] Preferably, the conical block is located at the upper and lower ends of the swing arm.
[0013] Preferably, the side wall of the discharge shell is provided with a cavity groove, and the swing rod is located inside the cavity groove.
[0014] Preferably, a downwardly inclined baffle is provided above the cavity groove, and the baffle is fixedly connected to the discharge shell.
[0015] Preferably, the lower end of the discharge shell is provided with a flange body, and the lower end of the flange body is provided with a valve shell connected by bolts.
[0016] Preferably, the valve housing has an internal groove, a sealing plate is slidably connected inside the groove, the sealing plate extends to the upper end of the valve housing and a pull block is fixed thereon, a locking bolt is provided on one side of the pull block, and a pair of threaded holes are provided on the upper end face of the valve housing to connect with the locking bolt.
[0017] Beneficial effects
[0018] This utility model provides an earthwork mixing device with an anti-clogging discharge mechanism. Compared with the prior art, it has the following advantages:
[0019] Firstly, the mixing assembly of this utility model can achieve efficient mixing and blending of earth and stone through the coordinated work of multiple structures. The scraper bracket can effectively clean the material on the inner wall of the mixing shell, avoiding material residue from affecting subsequent blending. Then, the spiral feeding shaft, stirring rod, spiral stirring shaft and conical spiral shaft work together to stir the material from multiple angles and levels, making the earth and stone mixture more uniform and improving the blending quality.
[0020] Secondly, the circular motion of the telescopic rod of this utility model is transmitted to the support shaft through the slider, slide rod, and connecting rod, causing the support shaft to reciprocate within the inner wall of the fixed bracket. The rotation of the support shaft drives the swing rod, which is fixedly connected to it, to reciprocate within the cavity. The cone-shaped block fixed at the lower end of the swing rod inside the discharge shell swings with the swing rod, crushing and dispersing the soil and rocks about to be discharged within the discharge shell, preventing material from clogging the discharge port. This effectively solves the problem of clogging caused by excessively large particles or accumulation of soil and rocks during the discharge process. Furthermore, the cone-shaped blocks are located at the upper and lower ends of the swing rod, expanding the range of action on the material and enabling more comprehensive processing of the material near the discharge port, improving the crushing and dispersing effect, further reducing the possibility of material clogging the discharge port, and ensuring the continuity and stability of the discharge. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the hybrid outer shell of this utility model;
[0023] Figure 3 This is a schematic diagram of the swing rod structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the sealing plate structure of this utility model.
[0025] In the diagram: 1. Mixing shell; 2. Inlet; 3. Outlet shell; 301. Flange body; 302. Valve shell; 303. Slide groove; 304. Sealing plate; 305. Hand lever; 306. Locking bolt; 307. Threaded hole; 4. Drive shaft; 401. Connecting bracket; 402. Scraper bracket; 403. Spiral feeding shaft; 404. Stirring rod; 405. Spiral stirring shaft; 406. Conical spiral shaft; 5. Fixed bracket; 501. Drive rod; 502. Rotating disk; 503. Telescopic rod; 504. Support shaft; 505. Connecting rod; 506. Slide rod; 507. Sliding block; 6. Swinging rod; 601. Conical block; 602. Cavity groove; 603. Baffle. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-4 This utility model provides a technical solution: an earthwork mixing device with an anti-clogging discharge mechanism, comprising a mixing shell 1, on which a mixing mechanism for earthwork mixing is provided, the mixing mechanism comprising:
[0028] The mixing assembly includes a mixing shell 1 with a drive shaft 4 that is vertically and rotatably connected through it. A connecting bracket 401 is fixed to the upper outer wall of the drive shaft 4. A scraper bracket 402 is fixed to one end of the connecting bracket 401. A spiral feeding shaft 403 is provided on the outer wall of the drive shaft 4 below the connecting bracket 401. A stirring rod 404 is uniformly fixed inside the spiral feeding shaft 403. A spiral stirring shaft 405 is fixed to the end of the stirring rod 404. A conical spiral shaft 406 is fixed to the lower end of the drive shaft 4.
[0029] The crushing assembly includes a discharge shell 3 fixed at the lower end of a mixing shell 1. A fixed bracket 5 is fixed to the side wall of the discharge shell 3. A swing rod 6 connected by a swing assembly is provided inside the fixed bracket 5. A cone block 601 is fixed at the lower end of the swing rod 6 inside the discharge shell 3.
[0030] The drive shaft 4 in the mixing assembly is driven by a motor. When the drive shaft 4 rotates, the connecting bracket 401 rotates synchronously with it. Because the connecting bracket 401 has an L-shaped structure, it drives the scraper bracket 402 to move in a circular motion against the inner wall of the mixing shell 1, scraping and cleaning the soil and rocks adhering to the inner wall of the mixing shell 1 to prevent material accumulation. At the same time, the rotation of the drive shaft 4 drives the spiral feeding shaft 403 to rotate. During the rotation of the spiral feeding shaft 403, on the one hand, it pushes the soil and rocks above downward, and on the other hand, the stirring rod 404, which is uniformly fixed inside, also rotates to stir the material. The spiral stirring shaft 405, which is fixed at the end of the stirring rod 404, further tumbles and stirs the material when rotating, increasing the uniformity of the mixture. In addition, the conical spiral shaft 406, which is fixed at the lower end of the drive shaft 4, stirs and pushes the material at the bottom of the mixing shell 1 when rotating, promoting the flow of the material to the discharge shell 3.
[0031] The mixing assembly, through the coordinated operation of multiple structures, can achieve efficient mixing and blending of earth and stone. The scraper bracket 402 can effectively clean the material on the inner wall of the mixing shell 1, avoiding material residue from affecting subsequent blending. Then, the spiral feeding shaft 403, the mixing rod 404, the spiral mixing shaft 405, and the conical spiral shaft 406 work together to mix the material from multiple angles and levels, making the earth and stone mixture more uniform and improving the blending quality.
[0032] In a preferred embodiment, a pair of feed inlets 2 are provided at the top of the mixing shell 1. The pair of feed inlets 2 at the top of the mixing shell 1 facilitates the simultaneous or separate entry of soil and rock from different types or sources into the mixing shell 1 for subsequent mixing and blending. The dual feed inlet 2 design increases the flexibility of feeding and allows for the blending of multiple types of soil and rock at the same time, thereby improving blending efficiency.
[0033] In a preferred embodiment, the connecting bracket 401 has an L-shaped structure, and the scraper bracket 402 is attached to the inner wall of the mixing shell 1. The connecting bracket 401 drives the scraper bracket 402 to rotate against the inner wall of the mixing shell 1, scraping off the material on the inner wall. This ensures that the scraper bracket 402 removes the soil and rocks adhering to the inner wall of the mixing shell 1 to the greatest extent, reduces material residue, and ensures the cleanliness of the inside of the mixing shell 1.
[0034] In a preferred embodiment, the swing assembly includes a fixed bracket 5 with a telescopic rod 503 connected via the assembly inside. A support shaft 504 is rotatably connected to the inner wall of the fixed bracket 5. Connecting rods 505 are fixed to both ends of the outer wall of the support shaft 504. A sliding rod 506 is fixed to the inner wall of the connecting rod 505. A slider 507 is slidably connected to the outer wall of the slider 506. The slider 507 is rotatably connected to the telescopic rod 503. The swing rod 6 is fixedly connected to the center end of the outer wall of the support shaft 504. The drive assembly includes a drive rod 501 rotatably connected inside the fixed bracket 5. A rotating disk 502 is fixed to one end of the drive rod 501. The telescopic rod 503 is located at the edge of the rotating disk 502 and is rotatably connected to the rotating disk 502 via a bearing. A cavity groove 602 is formed on the side wall of the discharge shell 3, and the swing rod 6 is located inside the cavity groove 602. When the drive rod 501 rotates, it drives the rotating disk 502 to rotate. The telescopic rod 503 at the edge of the rotating disk 502... Driven by component 2, the telescopic rod 503 undergoes circular motion. The telescopic rod 503 is rotatably connected to the slider 507. The slider 507 slides on the slide rod 506, which is fixed to the inner wall of the connecting rod 505. The connecting rod 505 is fixed to both ends of the outer wall of the support shaft 504, which is rotatably connected to the inner wall of the fixed bracket 5. Therefore, the circular motion of the telescopic rod 503 is transmitted to the support shaft 504 through the slider 507, slide rod 506, and connecting rod 505. During this process, the telescopic rod 503 can extend and retract to accommodate... In response to the changes in motion, the support shaft 504 reciprocates within the inner wall of the fixed bracket 5. The rotation of the support shaft 504 drives the swing rod 6, which is fixedly connected to it, to reciprocate within the cavity 602. The cone-shaped block 601, which is fixed at the lower end of the swing rod 6 inside the discharge shell 3, swings together with the swing rod 6, crushing and dispersing the earth and stone that is about to be discharged from the discharge shell 3, preventing the material from clogging the discharge port, and effectively solving the problem of blockage caused by excessively large particles or accumulation of earth and stone during the discharge process.
[0035] In a preferred embodiment, the conical blocks 601 are located at the upper and lower ends of the swing rod 6. The conical blocks 601 at the upper and lower ends expand the range of action on the material, enabling more comprehensive processing of the material near the discharge port, improving the crushing and dispersing effect, further reducing the possibility of material clogging the discharge port, and ensuring the continuity and stability of the discharge.
[0036] In a preferred embodiment, a downwardly inclined baffle 603 is provided above the cavity trough 602. The baffle 603 is fixedly connected to the discharge shell 3. During the material falling process, the baffle guides the material to flow towards the central area of the discharge shell 3, preventing the material from being discharged from the cavity trough 602.
[0037] As a supplementary explanation, when collecting the material from the discharge shell 3, the diameter of the collection shell is relatively large, which can simultaneously collect the material that leaks out of the cavity trough 602.
[0038] In a preferred embodiment, a flange body 301 is provided at the lower end of the discharge housing 3, and a valve housing 302 connected by bolts is provided at the lower end of the flange body 301. A sliding groove 303 is provided inside the valve housing 302, and a sealing plate 304 is slidably connected inside the sliding groove 303. A pull block 305 is fixed to the upper end of the sealing plate 304 extending to the valve housing 302. A locking bolt 306 is provided on one side of the pull block 305. A pair of threaded holes 307 are provided on the upper end face of the valve housing 302 and connected to the locking bolt 306. When discharge is required, the pull block 305 on the sealing plate 304 is pulled to make the sealing plate 304 slide in the sliding groove 303, opening the discharge channel of the valve housing 302. After discharge is completed, the pull block 305 is pushed to reset the sealing plate 304 and close the discharge channel. If it is necessary to lock the position of the sealing plate 304, the locking bolt 306 can be rotated to connect it with the threaded hole 307 on the upper end face of the valve housing 302.
[0039] The flange body 301 and the bolt connection method facilitate the installation and disassembly of the valve shell 302, making equipment maintenance and repair convenient.
[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0041] During the operation of the earthwork mixing device with anti-blocking discharge mechanism, the drive shaft 4 of the mixing component is driven by a motor to rotate, and the L-shaped connecting bracket 401 rotates synchronously with the drive shaft 4, driving the scraper bracket 402 connected to it and attached to the inner wall of the mixing shell 1 to make a circular motion, scraping and cleaning the earthwork adhering to the inner wall of the mixing shell 1 to prevent material accumulation.
[0042] At the same time, the rotation of the drive shaft 4 drives the spiral feeding shaft 403 to rotate, pushing the soil and rocks downwards on one hand, and the stirring rod 404, which is uniformly fixed inside, rotates to stir the material. When the spiral stirring shaft 405, which is fixed at the end of the stirring rod 404, rotates, it further tumbles and stirs the material, increasing the uniformity of mixing. In addition, when the conical spiral shaft 406, which is fixed at the lower end of the drive shaft 4, rotates, it stirs and pushes the material at the bottom of the mixing shell 1, promoting the material to flow to the discharge shell 3. The pair of feed inlets 2 at the top of the mixing shell 1 facilitate the simultaneous or separate entry of soil and rocks of different types or sources for mixing and blending, improving the blending efficiency.
[0043] When the crushing assembly is working, the drive rod 501 rotates, causing the rotating disk 502 to rotate. The telescopic rod 503 at the edge of the rotating disk 502 makes a circular motion. The telescopic rod 503 is rotatably connected to the slider 507. The slider 507 slides on the slide rod 506 fixed to the inner wall of the connecting rod 505. The connecting rod 505 is fixed to both ends of the outer wall of the support shaft 504. The support shaft 504 is rotatably connected to the inner wall of the fixed bracket 5, so that the support shaft 504 reciprocates. This causes the swing rod 6 fixed to the center end of the outer wall of the support shaft 504 to reciprocate in the cavity groove 602 on the side wall of the discharge shell 3. The cone blocks 601 at the upper and lower ends of the swing rod 6 swing together with the swing rod 6, crushing and dispersing the soil and rocks that are about to be discharged in the discharge shell 3, preventing the material from blocking the discharge port. The baffle 603 above the cavity groove 602, which is inclined downward and fixedly connected to the discharge shell 3, guides the material to flow towards the central area of the discharge shell 3, avoiding the accumulation of material near the swing rod 6 and affecting its swing.
[0044] During discharge, by pulling the hand block 305 on the sealing plate 304, the sealing plate 304 slides in the groove 303 inside the valve housing 302, opening the discharge channel of the valve housing 302. After discharge, push the hand block 305 to reset the sealing plate 304 and close the discharge channel. If it is necessary to lock the position of the sealing plate 304, rotate the locking bolt 306 to connect it with the threaded hole 307 on the upper end face of the valve housing 302. The lower flange body 301 of the discharge housing 302 and the bolt connection method facilitate the installation and disassembly of the valve housing 302, making equipment maintenance and repair convenient.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] 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 earthwork mixing device with an anti-clogging discharge mechanism, comprising a mixing shell (1) and a drive assembly, characterized in that: The mixing shell (1) is provided with a mixing mechanism for earthwork mixing, the mixing mechanism including: The mixing assembly includes a mixing shell (1) with a drive shaft (4) that is vertically connected to it. A connecting bracket (401) is fixed to the upper outer wall of the drive shaft (4). A scraper bracket (402) is fixed to one end of the connecting bracket (401). A spiral feeding shaft (403) is provided on the outer wall of the drive shaft (4) below the connecting bracket (401). A stirring rod (404) is uniformly fixed inside the spiral feeding shaft (403). A spiral stirring shaft (405) is fixed to the end of the stirring rod (404). A conical spiral shaft (406) is fixed to the lower end of the drive shaft (4). The crushing assembly includes a discharge shell (3) fixed at the lower end of a mixing shell (1). A fixed bracket (5) is fixed to the side wall of the discharge shell (3). A swing rod (6) connected by a swing assembly is provided inside the fixed bracket (5). A cone block (601) is fixed at the lower end of the swing rod (6) inside the discharge shell (3).
2. The earthwork mixing device with an anti-blocking discharge mechanism according to claim 1, characterized in that: The top of the mixing shell (1) is provided with a pair of feed inlets (2).
3. The earthwork mixing device with an anti-clogging discharge mechanism according to claim 1, characterized in that: The connecting bracket (401) has an L-shaped structure, and the scraper bracket (402) is attached to the inner wall of the mixing shell (1).
4. The earthwork mixing device with an anti-clogging discharge mechanism according to claim 1, characterized in that: The swing assembly includes a fixed bracket (5) with a telescopic rod (503) connected by the assembly inside. The inner wall of the fixed bracket (5) is rotatably connected to a support shaft (504). The outer walls of the support shaft (504) are fixed with connecting rods (505) at both ends. The inner wall of the connecting rod (505) is fixed with a sliding rod (506). The outer wall of the sliding rod (506) is slidably connected with a slider (507). The slider (507) is rotatably connected to the telescopic rod (503). The swing rod (6) is fixedly connected to the center end of the outer wall of the support shaft (504).
5. The earthwork mixing device with an anti-blocking discharge mechanism according to claim 4, characterized in that: The drive assembly includes a drive rod (501) rotatably connected inside a fixed bracket (5). One end of the drive rod (501) is fixed to a rotating disk (502). The telescopic rod (503) is located at the edge of the rotating disk (502) and is rotatably connected to the rotating disk (502) through a bearing.
6. The earthwork mixing device with an anti-blocking discharge mechanism according to claim 1, characterized in that: The conical block (601) is located at the upper and lower ends of the swing rod (6).
7. The earthwork mixing device with an anti-blocking discharge mechanism according to claim 1, characterized in that: The side wall of the discharge shell (3) is provided with a cavity groove (602), and the swing rod (6) is located inside the cavity groove (602).
8. An earthwork mixing device with an anti-blocking discharge mechanism according to claim 7, characterized in that: A downwardly inclined baffle (603) is provided above the cavity groove (602), and the baffle (603) is fixedly connected to the discharge shell (3).
9. The earthwork mixing device with an anti-blocking discharge mechanism according to claim 1, characterized in that: The lower end of the discharge shell (3) is provided with a flange body (301), and the lower end of the flange body (301) is provided with a valve shell (302) connected by bolts.
10. An earthwork mixing device with an anti-blocking discharge mechanism according to claim 9, characterized in that: The valve housing (302) has a sliding groove (303) inside, and a sealing plate (304) is slidably connected inside the sliding groove (303). The sealing plate (304) extends to the upper end of the valve housing (302) and is fixed with a pull block (305). A locking bolt (306) is provided on one side of the pull block (305). A pair of threaded holes (307) are provided on the upper end face of the valve housing (302) and connected to the locking bolt (306).
