A diamond sand spreader for underground garage concrete construction
By designing a discharge port structure that combines the hopper with the extended cavity, the problem of traditional diamond abrasive spreaders being unable to get close to obstacles in underground parking garages has been solved, achieving uniform material distribution and improving construction efficiency. This makes it suitable for high-requirement locations such as underground parking garages.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENGCHENG NEW CITY INVESTMENT & CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing diamond abrasive spreaders have fixed discharge port positions, making it difficult to spread the abrasive evenly around the corners and edges of underground parking garages, resulting in low construction efficiency and inconsistent quality.
A structure combining a hopper and an extended cavity was designed, with the discharge port extending to the outside of the hopper. The discharge port is flexibly positioned and synchronously conveyed through a traveling wheel and a transmission belt structure, ensuring uniform material distribution.
It enables precise material application to areas such as columns and wall bases, improving construction efficiency and quality consistency, and is suitable for large-scale, fast-paced modern building construction.
Smart Images

Figure CN224495726U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of floor construction equipment, specifically relating to a diamond abrasive spreader for underground garage concrete construction. Background Technology
[0002] Emery aggregate wear-resistant flooring is a high-performance floor treatment system composed of a specific ratio of emery aggregate, cement, and other additives. This flooring is created by evenly spreading the material onto the surface of concrete during its initial setting stage, followed by mechanized smoothing, compaction, and polishing, bonding with the base concrete to form a hard and wear-resistant surface layer. Due to its excellent wear resistance, impact resistance, and compressive strength, emery aggregate flooring is widely used in industrial plants, underground garages, warehousing and logistics centers, and other locations with high requirements for floor performance. Compared to traditional flooring, it has significant advantages such as shorter construction time, longer service life, and easier cleaning and maintenance, making it a mainstream alternative to terrazzo flooring.
[0003] Currently, there are some mechanized material spreading equipment in existing technologies, such as basic devices with hoppers and travel wheels. However, the discharge port of traditional equipment is limited in position, and is generally set at the bottom middle of the hopper. It cannot effectively spread material close to obstacles such as columns and wall bases in underground garages for precise spreading. These areas still rely on manual material replenishment, which is inefficient and has poor uniformity, thus restricting the construction efficiency and quality consistency of large-area overall flooring. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a diamond abrasive spreading machine for underground garage concrete construction, which solves the problem that the traditional diamond abrasive spreading machine has a fixed discharge port position, making it difficult to spread the material evenly close to the corner areas such as columns and wall bases of the underground garage, thus requiring manual replenishment.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] This utility model includes a hopper and a traveling wheel;
[0007] The hopper includes a hopper body and an extended cavity. The hopper body is a long, cylindrical structure that is hollow inside, open at the top, and converges downward at the bottom. The extended cavity is a long, plate-like structure that is hollow inside. One side of the extended cavity is connected to the bottom of the hopper body, and the other side extends to the outside of the hopper body and has a long, strip-shaped discharge port.
[0008] There are two traveling wheels, which are rotatably mounted on the bottom end faces of the hopper. The axes of the two traveling wheels coincide, and the bottom side of the traveling wheels is lower than the discharge port.
[0009] Optionally, it also includes a push handle, which includes a push rod and an extension rod. There are two extension rods, which are fixed to the two end faces of the push rod respectively. The two extension rods are rotatably disposed at both ends of the bucket body.
[0010] Optionally, the hopper further includes several blocking blocks, with at least one end face of the hopper body having two blocking blocks fixed thereon. Rotating the extension rod causes the extension rod to be blocked by one of the blocking blocks, so that the push handle is located on one side of the hopper body.
[0011] Optionally, a locking bolt is threaded onto the stop block, the locking bolt passing through the stop block and threadedly connected to the stopped extension rod.
[0012] Optionally, the outer end of the locking bolt is fixed with a plate that facilitates manual rotation.
[0013] Optionally, the stop block has an L-shaped cross-section and is fixedly connected to the bucket body to form a slot for supporting and clamping the extension rod.
[0014] Optionally, it also includes a first rotating column, which is rotatably disposed at the bottom of the bucket body at the convergence position. Several grooves are formed around the outer side of the first rotating column. Both ends of the first rotating column extend axially to the outer end of the bucket body and are respectively fixedly connected to the travel wheel. The travel wheel is coaxially disposed with the first rotating column.
[0015] Optionally, it also includes a second rotating column and a transmission belt structure. Several baffles are fixedly provided around the outside of the second rotating column. The second rotating column is rotatably disposed at the discharge port position of the extended cavity. The rotating shaft of the second rotating column is parallel to the rotating shaft of the first rotating column. The two ends of the second rotating column extend from the outer end of the bucket body. The transmission belt structure includes two transmission wheels and a transmission belt that is stretched around the outside of the two transmission wheels. The transmission wheels are located on the outside of the end face of the bucket body. The two transmission wheels are fixedly connected to the rotating shafts of the first rotating column and the second rotating column, respectively.
[0016] The beneficial effects of this utility model are as follows: The hopper structure design of this diamond abrasive spreader optimizes the traditional single hopper into a unique form that combines the hopper with an extended cavity. The extended position of the elongated discharge port addresses the practical problem of difficult diamond abrasive spreading around obstacles such as columns and walls in underground parking garages, achieving a significant functional improvement. The extended cavity extends the discharge port to the outside of the hopper. When spreading on the main ground, the discharge port is on the same side as the operator, facilitating real-time monitoring of the diamond abrasive spreading while moving the equipment, ensuring uniform material distribution. When dealing with column corner structures, the discharge port can directly and closely approach areas that are difficult for traditional equipment to reach, such as column or wall bases, replacing manual material replenishment. This overall improves construction efficiency and is particularly suitable for the requirements of large-scale, fast-paced modern building construction.
[0017] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:
[0019] Figure 1 A schematic diagram of the overall structure of the feeder according to this utility model embodiment;
[0020] Figure 2 This is a schematic diagram of the internal structure of the feeder according to an embodiment of the utility model;
[0021] Figure 3 A schematic diagram of the transmission belt structure of this utility model embodiment is shown below;
[0022] The following are the markings in the attached diagram: 11. Bucket body; 12. Extended cavity; 13. Stop block; 14. Locking bolt; 15. Plate; 2. Traveling wheel; 31. Push rod; 32. Extension rod; 4. First rotating column; 41. Groove; 5. Second rotating column; 51. Baffle; 61. Transmission wheel; 62. Transmission belt. Detailed Implementation
[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0024] Please refer to the figures. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they 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 invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0025] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.
[0026] This utility model provides a diamond abrasive spreading machine for concrete construction in underground garages, such as... Figure 1 As shown, the hopper includes a hopper and traveling wheels 2. The hopper includes a hopper body 11 and an extended cavity 12. The hopper body 11 is a long, cylindrical structure with a hollow interior, an open top, and a downward-converging bottom. The extended cavity 12 is a long, plate-like structure with a hollow interior. One side of the extended cavity 12 is connected to the bottom of the hopper body 11, and the other side extends to the outside of the hopper body 11 and has a long, strip-shaped discharge port. There are two traveling wheels 2, which are rotatably mounted on the bottom end faces of the hopper. The axes of the two traveling wheels 2 coincide, and the bottom side of the traveling wheels 2 is lower than the discharge port.
[0027] The hopper structure design of this diamond abrasive spreader optimizes the traditional single hopper 11 into a unique form combining the hopper 11 with an extended cavity 12. The extended elongated discharge port addresses the practical problem of difficult diamond abrasive spreading around obstacles such as columns and walls in underground parking garages, achieving a significant functional improvement. The extended cavity 12 extends the discharge port to the outside of the hopper 11. When spreading on the main ground, the discharge port is on the same side as the operator, facilitating real-time monitoring of the diamond abrasive spreading during equipment movement and ensuring uniform material distribution. When dealing with column corner structures, the discharge port can directly and closely approach areas that are difficult for traditional equipment to reach, such as column or wall bases, replacing manual material replenishment. This overall improves construction efficiency and is particularly suitable for the requirements of large-scale, fast-paced modern building construction.
[0028] A further embodiment also includes a push handle, which includes a push rod 31 and an extension rod 32. There are two extension rods 32, which are respectively fixed to the two end faces of the push rod 31. The two extension rods 32 are rotatably disposed at both ends of the hopper body 11. The hopper also includes several stop blocks 13. At least one end face of the hopper body 11 is fixed with two stop blocks 13. Rotating the extension rod 32 causes the extension rod 32 to be stopped by one of the stop blocks 13, so that the push handle is located on one side of the hopper body 11. A locking bolt 14 is threadedly connected to the stop block 13. The locking bolt 14 passes through the stop block 13 and is threadedly connected to the stopped extension rod 32. The outer end of the locking bolt 14 is fixed with a plate 15 that facilitates manual rotation. The stop block 13 has an L-shaped block structure. The stop block 13 is fixedly connected to the hopper body 11 to form a slot for supporting and clamping the extension rod 32.
[0029] The design of this flip-up push handle structure, through mechanical linkage and locking mechanisms, enables rapid positioning and switching of the push handle on both sides of the hopper, improving construction efficiency and flexibility. The operator only needs to loosen the locking bolt 14, flip the push handle, and re-lock it to fix the push handle on the left or right side of the hopper. This design allows the equipment to be quickly switched between two modes: a flat laying mode (pull handle on the same side as the operator) for large-area deployment and a corner laying mode (pull handle on the opposite side of the operator) for closer proximity to columns or walls. This is particularly suitable for complex environments with dense column grids and numerous corners in underground parking garages, ensuring construction continuity.
[0030] A further embodiment includes a first rotating column 4, which is rotatably disposed at the bottom of the bucket body 11. Several grooves 41 are formed around the outside of the first rotating column 4. Both ends of the first rotating column 4 extend axially to the outer end of the bucket body 11 and are respectively fixedly connected to the traveling wheel 2. The traveling wheel 2 is coaxially disposed with the first rotating column 4. The embodiment also includes a second rotating column 5 and a transmission belt 62 structure. Several baffles 51 are fixedly disposed around the outside of the second rotating column 5. The second rotating column 5 is rotatably disposed at the discharge port of the extended cavity 12. The rotating axis of the second rotating column 5 is parallel to the rotating axis of the first rotating column 4. Both ends of the second rotating column 5 extend axially to the outer end of the bucket body 11. The transmission belt 62 structure includes two transmission wheels 61 and a transmission belt 62 that is stretched around the outside of the two transmission wheels 61. The transmission wheels 61 are located on the outer side of the end face of the bucket body 11. The two transmission wheels 61 are respectively fixedly connected to the rotating axes of the first rotating column 4 and the second rotating column 5.
[0031] This structure is coaxially and fixedly connected to the first rotating column 4 via the traveling wheel 2, thus binding the movement of the equipment with the operation of the internal transmission mechanism. When the spreader is pushed forward, the rotation of the traveling wheel 2 directly and without delay drives the first rotating column 4 to rotate synchronously. The first rotating column 4 transmits power to the second rotating column 5 located at the discharge port through the transmission belt 62 structure. The baffle 51 on the second rotating column 5 rotates accordingly. Through the rotation of the first rotating column 4 and the second rotating column 5, and the rotation of the groove 41 and the baffle 51, the continuous and stable feeding and conveying of corundum from the hopper 11 to the extended cavity 12 is achieved. This design ensures that the amount of material spread is proportional to the travel distance, providing a key guarantee for the uniformity and overall quality of the corundum flooring.
[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A diamond abrasive spreading machine for concrete construction in underground garages, characterized in that: Including the hopper and the travel wheel (2); The hopper includes a hopper body (11) and an extended cavity (12). The hopper body (11) is a long, cylindrical structure with a hollow interior, an open top, and a downward-converging bottom. The extended cavity (12) is a long, plate-like structure with a hollow interior. One side of the extended cavity (12) is connected to the bottom of the hopper body (11), and the other side extends to the outside of the hopper body (11) and has a long, strip-shaped discharge port. There are two traveling wheels (2), which are rotatably disposed on the bottom end faces of the hopper. The axes of the two traveling wheels (2) coincide, and the bottom side of the traveling wheels (2) is lower than the discharge port.
2. The diamond abrasive spreading machine for underground garage concrete construction according to claim 1, characterized in that: It also includes a push handle, which includes a push rod (31) and an extension rod (32). There are two extension rods (32) and they are fixed to the two ends of the push rod (31). The two extension rods (32) are rotatably disposed at both ends of the bucket body (11).
3. The diamond abrasive spreading machine for underground garage concrete construction according to claim 2, characterized in that: The hopper also includes several blocking blocks (13). At least one end face of the hopper body (11) is fixed with two of the blocking blocks (13). Rotating the extension rod (32) causes the extension rod (32) to be blocked by one of the blocking blocks (13) respectively, so that the push handle is located on one side of the hopper body (11).
4. The diamond abrasive spreading machine for underground garage concrete construction according to claim 3, characterized in that: A locking bolt (14) is threaded onto the stop block (13), the locking bolt (14) passes through the stop block (13) and is threaded onto the stopped extension rod (32).
5. The diamond abrasive spreading machine for underground garage concrete construction according to claim 4, characterized in that: The outer end of the locking bolt (14) is fixed with a plate (15) that facilitates manual rotation.
6. The diamond abrasive spreading machine for underground garage concrete construction according to claim 5, characterized in that: The stop block (13) has an L-shaped cross-section and is fixedly connected to the bucket body (11) to form a slot for supporting and clamping the extension rod (32).
7. The diamond abrasive spreading machine for underground garage concrete construction according to claim 6, characterized in that: It also includes a first rotating column (4), which is rotatably disposed at the bottom of the bucket body (11) at the convergence position. Several grooves (41) are opened around the outside of the first rotating column (4). The two ends of the first rotating column (4) extend to the outer end of the bucket body (11) and are respectively fixedly connected to the traveling wheel (2). The traveling wheel (2) is coaxially disposed with the first rotating column (4).
8. The diamond abrasive spreading machine for underground garage concrete construction according to claim 7, characterized in that: It also includes a second rotating column (5) and a transmission belt (62) structure. Several baffles (51) are fixed around the outside of the second rotating column (5). The second rotating column (5) is rotatably set at the discharge port position of the extended cavity (12). The rotating shaft of the second rotating column (5) is parallel to the rotating shaft of the first rotating column (4). The two ends of the second rotating column (5) extend to the outer end of the bucket body (11). The transmission belt (62) structure includes two transmission wheels (61) and a transmission belt (62) that is stretched around the outside of the two transmission wheels (61). The transmission wheels (61) are located outside the end face of the bucket body (11). The two transmission wheels (61) are fixedly connected to the rotating shafts of the first rotating column (4) and the second rotating column (5), respectively.