Self-cleaning concrete spreader based on hydrophobic layer
By introducing a combination of a hydrophobic layer, brushes, and high-pressure water sprayers into the concrete placing boom, the problem of all-round cleaning of the inner wall of the hopper is solved, achieving a highly efficient self-cleaning effect and reducing scraper wear.
Patent Information
- Application Number
- CN202422582205.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Existing concrete placing booms cannot clean the inner wall of the hopper in all directions, especially the left, right and lower side walls, which cannot be effectively cleaned. In addition, the scraper wears out severely, making maintenance inconvenient.
The design combines a hydrophobic layer, a brush, and a high-pressure water sprayer. The hydrophobic layer prevents concrete from sticking, the brush removes residue, and the high-pressure water sprayer washes away hard-to-reach areas, achieving all-around cleaning.
It achieves full-coverage cleaning of the inner wall of the hopper, reduces scraper wear, and improves cleaning efficiency and maintenance convenience.
Smart Images
Figure CN223661383U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete pouring equipment, concretely relates to a self-cleaning concrete distributing machine based on a hydrophobic layer. BACKGROUND
[0002] The concrete distributing machine is a kind of mechanical equipment specially used for concrete pouring, is widely used in construction engineering, and its main function is to transport concrete from mixing station to construction site and evenly distribute to formwork, to ensure the uniformity and compactness of concrete.
[0003] The mobile distributing machine is one of the concrete distributing machines, is convenient for moving in construction site, and the main role is to transport concrete from the trailer pump to construction position.This distributing machine generally includes hopper, and vibration discharge assembly is arranged below the hopper.When using, the hopper is filled with concrete, is moved to the top of formwork in construction site, and the pouring of concrete is completed by the vibration discharge assembly.
[0004] The cleaning of hopper is the key link to ensure the normal operation of equipment and the quality of concrete.The self-cleaning concrete distributing machine also exists in prior art, and rotating scraper is only arranged at the front and rear ends of hopper to scrape the inner walls of front and rear ends of hopper.This distributing machine has the following shortcomings:1. only the front and rear inner walls are scraped, and the inner walls of other positions, especially left, right and lower inner walls, cannot be cleaned comprehensively.2. the cleaning mode of scraping is used, the scraper is seriously worn, the cleaning effect is difficult to guarantee, and maintenance is not convenient. SUMMARY
[0005] In view of the technical problems in prior art, the utility model aims at providing a self-cleaning concrete distributing machine based on hydrophobic layer, which can clean the inner walls of hopper comprehensively and guarantee cleaning effect.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] A self-cleaning concrete distributing machine based on hydrophobic layer, comprising hopper, transmission shaft, brush, high-pressure water sprayer, water supply mechanism and driving mechanism, the transmission shaft extending along the front and rear directions is arranged in the hopper, and the driving mechanism drives the transmission shaft to rotate, the brush is rectangular brush, the number of brushes is multiple, and the multiple brushes are evenly installed on the transmission shaft, the number of high-pressure water sprayers is multiple, and the high-pressure water sprayers are arranged on the upper edge of hopper, the high-pressure water sprayers are connected with water supply mechanism, and the inner wall of hopper is provided with hydrophobic layer.
[0008] As a preferred, the inner wall of hopper is provided with hydrophobic layer formed by super-hydrophobic material.
[0009] As a preferred, the brush comprises brush plate and brush hair, the brush plate is connected with transmission shaft through connecting rod, the connecting rod is perpendicular to transmission shaft and also perpendicular to brush plate.
[0010] As a preferred embodiment, multiple brushes are arranged in at least two columns, with adjacent brushes in adjacent columns overlapping in the front-to-back direction, so that when all brushes rotate with the rotating shaft, the brushes cover a continuous area of the inner wall of the hopper.
[0011] As a preferred option, the drive mechanism is installed on the front or rear side of the hopper.
[0012] As a preferred option, the drive mechanism is a drive motor, which is connected to the transmission shaft via a coupling.
[0013] As a preferred embodiment, the upper end of the hopper is provided with an installation side that slopes from the lower inside to the upper outside, and a high-pressure water sprayer is installed on the installation side; the high-pressure water sprayer sprays downward at an angle.
[0014] As a preferred embodiment, the water supply mechanism includes a ring-shaped water pipe, a booster pump, and a water source connected in sequence via pipelines; the ring-shaped water pipe is arranged around the outside of the installation side, and a high-pressure water jet is connected to the ring-shaped water pipe.
[0015] As a preferred embodiment, the high-pressure water sprayer is mounted on the front and rear mounting edges.
[0016] As a preferred embodiment, in the front-to-back direction, the upper part of the longitudinal section of the hopper is rectangular and the lower part is an inverted isosceles trapezoid.
[0017] The principle of this invention is to use a hydrophobic layer, a brush, and a high-pressure water sprayer together. These three components work synergistically to ensure a good cleaning effect on the inner wall of the concrete placing boom. The hydrophobic layer significantly reduces the hardening of residual concrete, preventing it from adhering to the inner wall of the hopper. The brush can remove a small amount of concrete adhering to the side walls, and the high-pressure water sprayer can also wash away a small amount of adhering concrete, ultimately removing the remaining concrete. Simultaneously, the hydrophobic layer can cover the entire inner wall of the hopper, the brush can cover the inner side walls of the hopper, and the high-pressure water sprayer can cover areas not covered by the brush, achieving complete cleaning of the inner wall of the hopper. This invention achieves good self-cleaning effects in both cleaning efficiency and coverage.
[0018] This utility model has the following advantages:
[0019] 1. It has a good self-cleaning effect and can achieve a large-scale coverage of the cleaning area.
[0020] 2. The hydrophobic layer effectively ensures the anti-adhesion effect.
[0021] 3. Adjacent brushes in adjacent columns overlap in the front-to-back direction, eliminating cleaning dead corners between brushes. Almost the entire inner wall is cleaned by brushing, and areas in the hopper where residue is more likely to accumulate are within the cleaning range of the brushes.
[0022] 4. Use a brush for cleaning. The brush is not easily worn out, and even if it is worn out, it is easy to replace.
[0023] 5. High-pressure water sprayers can be used for cleaning, supplementing areas that brushes cannot reach, or for targeted cleaning of specific areas, offering flexibility in placement. Attached Figure Description
[0024] Figure 1 This is a 3D view of a self-cleaning concrete placing boom.
[0025] Figure 2 This is a side view of a self-cleaning concrete placing boom.
[0026] Figure 3 This is a top view of a self-cleaning concrete placing boom.
[0027] Figure 4 This is a diagram showing the installation structure of the brush and drive shaft.
[0028] Among them, 1-hopper, 2-drive shaft, 3-brush, 4-high pressure water sprayer, 5-drive motor, 6-hydrophobic layer, 7-connecting rod, 8-installation edge, 9-ring water pipe. Detailed Implementation
[0029] The present invention will be further described in detail below with reference to specific embodiments.
[0030] Example 1
[0031] A self-cleaning concrete placing boom based on a hydrophobic layer includes a hopper, a drive shaft, brushes, high-pressure water sprayers, a water supply mechanism, and a drive mechanism. The drive shaft, extending in the front-to-back direction, is disposed inside the hopper, and the drive mechanism drives the drive shaft to rotate. The brushes are rectangular brushes, and there are multiple brushes evenly mounted on the drive shaft. There are multiple high-pressure water sprayers, which are disposed on the upper edge of the hopper and connected to the water supply mechanism. The inner wall of the hopper is provided with a hydrophobic layer.
[0032] In this embodiment, the front and rear ends of the drive shaft are mounted on the front and rear walls of the hopper via bearings, and the front end of the drive shaft extends through the front wall of the hopper and connects to the drive motor. The self-cleaning concrete placing boom is suitable for scenarios where a mixing device is not used, as the presence of a hydrophobic layer prevents residual concrete from easily adhering to the inner wall.
[0033] The inner wall of the hopper is provided with a hydrophobic layer formed by superhydrophobic material.
[0034] In this embodiment, a superhydrophobic material was prepared by mixing nano-SiO2 and neutral silicone sealant at a mass ratio of 4:3. The superhydrophobic material can construct a porous, mesh-like micro-nano rough structure, preventing concrete from solidifying and bonding to the inner wall, thus reducing cleaning difficulty.
[0035] A brush consists of a brush plate and brush bristles; the brush plate is connected to the drive shaft via a connecting rod; the connecting rod is perpendicular to both the drive shaft and the brush plate.
[0036] In this embodiment, brush bristles of moderate hardness and length should be selected. The hardness needs to be sufficient to ensure that residual bonding concrete can be brushed off; the length needs to be moderate to ensure that the bristles can contact the entire sidewall when moving circumferentially. However, bristles that are too hard or too long will also cause wear.
[0037] Multiple brushes are arranged in at least two columns, with adjacent brushes in adjacent columns overlapping in the front-to-back direction, so that when all brushes rotate with the rotating shaft, the brushes cover a continuous area of the inner wall of the hopper.
[0038] In this embodiment, the brushes are arranged in two rows in a 180-degree circumferential arrangement, with two brushes in each row. The four brushes cover the continuous area on the left, right, and bottom sides during rotation, leaving no blind spots in the brushing process.
[0039] The drive mechanism is installed on the front or rear side of the hopper.
[0040] In this embodiment, the drive mechanism is installed on the front side.
[0041] The drive mechanism is a drive motor, which is connected to the transmission shaft via a coupling.
[0042] The upper end of the hopper is provided with an installation side that slopes from the inside bottom to the outside top, and a high-pressure water sprayer is installed on the installation side; the high-pressure water sprayer sprays diagonally downwards.
[0043] The water supply system includes a ring-shaped water pipe, a booster pump, and a water source connected in sequence by pipelines; the ring-shaped water pipe is arranged around the outside of the installation side, and a high-pressure water sprayer is connected to the ring-shaped water pipe.
[0044] Preferably, the high-pressure water sprayer uses intermittent water jet flushing, which has a better rinsing effect.
[0045] The high-pressure water sprayer is installed on the front and rear mounting edges.
[0046] In this embodiment, two high-pressure water sprayers are installed on each side of the mounting edge.
[0047] In the front-to-back direction, the upper part of the longitudinal section of the hopper is rectangular, and the lower part is an inverted isosceles trapezoid.
[0048] In this embodiment, residual concrete is more likely to adhere at the junction of the rectangular part of the hopper and the isosceles trapezoid, and residual concrete is also more likely to adhere at the junction of the hopper and the vibrating discharge component. Therefore, the brush needs to cover these areas.
[0049] The usage process of this utility model is as follows:
[0050] 1) After the concrete is mixed, it is loaded into the hopper of the self-cleaning concrete placing machine. At this time, the vibrating discharge component under the hopper is in the closed state.
[0051] 2) Move the self-cleaning concrete placing boom above the formwork on the construction site, activate the vibrating discharge assembly, and pour concrete into the formwork. Because the movement distance is short, the placing boom does not require a mixing device, and the concrete will not solidify. Simultaneously, the presence of a hydrophobic layer prevents residual concrete from adhering to the inner wall during pouring.
[0052] 3) After using the self-cleaning concrete placing boom, connect the booster pump and water source, start the drive motor and booster pump, the drive shaft drives the brush to rotate, the brush brushes off a small amount of residual concrete on the inner side wall, and the high-pressure water sprayer powerfully washes the areas that the brush cannot cover.
[0053] This completes the self-cleaning process of the concrete placing boom, allowing it to be reused later.
[0054] Example 2
[0055] A self-cleaning concrete placing boom based on a hydrophobic layer is equipped with high-pressure water sprayers on all four sides of the mounting edge. Four high-pressure water sprayers are installed on each of the front and rear mounting edges to clean areas not covered by the brush, and two high-pressure water sprayers are installed on each of the left and right mounting edges to enhance cleaning.
[0056] The parts not mentioned in this embodiment are the same as in Embodiment 1.
[0057] Example 3
[0058] A self-cleaning concrete placing boom based on a hydrophobic layer has brushes arranged in three rows at 120-degree circumferential angles, with two brushes in each row. The six brushes cover the continuous front, back, and rear areas on the left, right, and bottom sides during rotation, leaving no blind spots in the cleaning process.
[0059] The parts not mentioned in this embodiment are the same as in Embodiment 1.
[0060] In addition to the methods mentioned in the above embodiments, other existing materials with good anti-fouling properties against concrete walls can be used as superhydrophobic materials. The longitudinal section of the hopper can have other shapes, as long as the brush can cover the key cleaning areas. These variations are all within the protection scope of this utility model.
[0061] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A self-cleaning concrete placing boom based on a hydrophobic layer, characterized in that: It includes a hopper, a drive shaft, brushes, high-pressure water sprayers, a water supply mechanism, and a drive mechanism; the drive shaft, extending in the front-to-back direction, is installed inside the hopper, and the drive mechanism drives the drive shaft to rotate; the brushes are rectangular brushes, and there are multiple brushes, which are evenly installed on the drive shaft; there are multiple high-pressure water sprayers, which are located on the upper edge of the hopper and are connected to the water supply mechanism; the inner wall of the hopper is provided with a hydrophobic layer; The inner wall of the hopper is provided with a hydrophobic layer formed by superhydrophobic material; A brush consists of a brush plate and brush bristles; the brush plate is connected to the drive shaft via a connecting rod; the connecting rod is perpendicular to both the drive shaft and the brush plate. Multiple brushes are arranged in at least two columns, with adjacent brushes in adjacent columns overlapping in the front-to-back direction, so that when all brushes rotate with the rotating shaft, the brushes cover a continuous area of the inner wall of the hopper. In the front-to-back direction, the upper part of the longitudinal section of the hopper is rectangular, and the lower part is an inverted isosceles trapezoid.
2. A self-cleaning concrete placing boom based on a hydrophobic layer according to claim 1, characterized in that: The drive mechanism is installed on the front or rear side of the hopper.
3. A self-cleaning concrete placing boom based on a hydrophobic layer according to claim 2, characterized in that: The drive mechanism is a drive motor, which is connected to the transmission shaft via a coupling.
4. A self-cleaning concrete placing boom based on a hydrophobic layer according to claim 1, characterized in that: The upper end of the hopper is provided with an installation side that slopes from the inside bottom to the outside top, and a high-pressure water sprayer is installed on the installation side; the high-pressure water sprayer sprays diagonally downwards.
5. A self-cleaning concrete placing boom based on a hydrophobic layer according to claim 4, characterized in that: The water supply system includes a ring-shaped water pipe, a booster pump, and a water source connected in sequence via pipelines; the ring-shaped water pipe is arranged around the outside of the installation side, and a high-pressure water sprayer is connected to the ring-shaped water pipe.
6. A self-cleaning concrete placing boom based on a hydrophobic layer according to claim 4, characterized in that: The high-pressure water sprayer is installed on the front and rear mounting edges.