Cleaning device for discharging hopper of concrete tank truck and cleaning method of cleaning device
By designing detachable inner and outer material troughs and hoisting equipment, the pollution and blockage problems caused by the lack of cleaning pools at construction sites were solved, and automatic solid-liquid separation and efficient cleaning of concrete mixer truck hoppers were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHT ENG DIV CORP LTD
- Filing Date
- 2025-12-24
- Publication Date
- 2026-04-17
AI Technical Summary
The lack of cleaning pools at construction sites leads to problems such as site contamination and sewer blockage when cleaning concrete mixer truck hoppers.
A mobile cleaning device was designed, including detachable inner and outer material troughs. The inner material trough is equipped with filter holes for solid-liquid separation, and the bottom of the outer material trough has a drain valve and a pulley assembly for easy movement and drainage. The inner material trough automatically separates aggregates through a hoisting device.
It achieves automatic solid-liquid separation of waste materials, avoiding on-site pollution and sewer blockage, and improving cleaning efficiency.
Smart Images

Figure CN121868971A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of construction technology, and in particular to a cleaning device and method for the discharge hopper of a concrete mixer truck. Background Technology
[0002] Before concrete mixer trucks leave the construction site, the hoppers of the concrete mixer trucks need to be cleaned to prevent residual concrete from spilling out of the hoppers and affecting the appearance of the city. Currently, in some construction sites where construction land is scarce, there is no space to set up hopper cleaning pools. Concrete hopper cleaning is often carried out directly on the site ring road. During the cleaning process, it will cause pollution to the temporary roads on the site and is also prone to blockage of the site's drainage system. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cleaning device and method for the discharge hopper of concrete mixer trucks, which can automatically separate solid and liquid waste regardless of site limitations and avoid pollution to the site.
[0004] To achieve the above objectives, the technical solution adopted by the present invention is a cleaning device for the discharge hopper of a concrete mixer truck, which can be moved to the bottom of the discharge hopper of the concrete mixer truck to receive waste material. The cleaning device includes a movable outer material trough and an inner material trough detachably embedded in the outer material trough for receiving the waste material; wherein, The inner material tank has filter holes on its tank wall for filtering out wastewater from the waste material; The top of the inner material trough is equipped with lifting lugs for hoisting equipment.
[0005] A further improvement of the cleaning device for the discharge hopper of a concrete mixer truck of the present invention is that the inner material trough includes two frame structures, each of which is a right-angled triangular prism, and the inclined surface and two end faces of each frame structure are covered with a screen, each mesh of the screen forming a filter hole; when the inner material trough is embedded in the outer material trough, the first right-angled surfaces of the two frame structures are vertically abutting each other and hinged to each other at the bottom end, the second right-angled surfaces of the two frame structures are located on the same horizontal plane and together form a trough for receiving waste material, and the lifting lugs are connected to both second right-angled surfaces.
[0006] A further improvement of the cleaning device for the discharge hopper of a concrete mixer truck is that the bottom surface of the outer material trough is formed as a plane that can be placed on the ground, and a V-shaped rib plate for supporting the inner material trough is connected inside the outer material trough. When the inner material trough is embedded in the outer material trough, the inclined surfaces of the two frame structures respectively abut against the two flange plates of the V-shaped rib plate.
[0007] A further improvement of the cleaning device for the discharge hopper of a concrete mixer truck is that the V-shaped rib is provided with water passages for the wastewater to pass through, and the bottom of the outer material trough is connected to a drain valve.
[0008] A further improvement of the present invention for the cleaning device of the discharge hopper of a concrete mixer truck is that a pulley system is connected to the bottom of the outer material trough.
[0009] A method for cleaning the hopper of a concrete mixer truck, comprising the following steps: Step 1: Provide the cleaning device for the concrete mixer truck's hopper as described above and move it to the bottom of the concrete mixer truck's hopper. Step 2: Use a water gun to flush the discharge hopper, so that the waste material passes through the inner material tank for solid-liquid separation; Step 3: After the discharge hopper is cleaned, use a tower crane to lift the inner material trough to the garbage dumping point and discharge the concrete aggregate in the inner material trough.
[0010] A further improvement of the cleaning method for the discharge hopper of a concrete mixer truck of the present invention is that the inner material trough includes two frame structures, each frame structure is a right-angled triangular prism, and the inclined surface and two end faces of each frame structure are covered with a screen, each mesh of the screen forming a filter hole; when the inner material trough is embedded in the outer material trough, the first right-angled surfaces of the two frame structures are vertically abutting each other and hinged to each other at the bottom end, the second right-angled surfaces of the two frame structures are located on the same horizontal plane and together form a trough for receiving waste material, and the lifting lugs are connected to both second right-angled surfaces; When performing step 3 above, two lifting ropes are used to suspend the inner material trough from the outer material trough. After the inner material trough is hoisted to the garbage dumping point, one of the lifting ropes is released, so that the two frame structures automatically separate and the internal concrete aggregate is automatically discharged.
[0011] A further improvement of the present invention for cleaning the discharge hopper of a concrete mixer truck is that the bottom surface of the outer material trough is formed as a plane that can be placed on the ground, a V-shaped rib plate for supporting the inner material trough is connected inside the outer material trough, water passages for the wastewater to pass through are spaced apart on the V-shaped rib plate, and a drain valve is connected to the bottom of the outer material trough. When performing step 3 above, open the drain valve to discharge the wastewater in the external material tank.
[0012] Compared with the prior art, the advantages of the present invention are: By setting up detachable inner and outer material tanks, it is easy to automatically separate solid and liquid waste for separate treatment, thus avoiding pollution of the site environment and blockage of sewers. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a perspective view of the cleaning device of the present invention.
[0015] Figure 2 This is a front view of the cleaning device of the present invention.
[0016] Figure 3 This is a perspective view of the external material tank structure of the present invention.
[0017] Figure 4 This is a front view of the inner material tank of the present invention.
[0018] Figure 5 This is a top view of the inner material tank of the present invention.
[0019] Figure 6 This is a schematic diagram of the hoisting of the inner material trough of the present invention.
[0020] Figure 7 This is a schematic diagram of the unloading of the inner material tank of the present invention.
[0021] In the diagram: 1. Outer material trough; 2. Inner material trough; 201. Frame structure; 202. Screen; 203. Hinge; 3. Lifting lug; 4. Lifting point; 5. Drain valve; 6. Overflow hole; 7. V-shaped rib; 8. Support rod; 9. Lifting rope. Detailed Implementation
[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
[0023] The cleaning device and cleaning method for the discharge hopper of a concrete mixer truck according to the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Please see Figures 1-7 As shown, a cleaning device for the discharge hopper of a concrete mixer truck is movable to the bottom of the discharge hopper to collect waste material. The cleaning device includes a movable outer trough 1 and an inner trough 2 detachably embedded in the outer trough 1 to collect the waste material; wherein, The inner material tank 2 has filter holes on its tank wall for filtering out wastewater from the waste material; The top of the inner material trough 2 is equipped with lifting lugs 3 for hoisting equipment.
[0025] By setting up a detachable inner material tank 2 and an outer material tank 1, it is convenient to automatically separate solid and liquid waste materials for separate processing, thereby avoiding pollution of the site environment and blockage of sewers.
[0026] Preferably, the inner material trough 2 includes two frame structures 201, each of which is a right-angled triangular prism, and each of the frame structures 201 is covered with a screen 202 on its inclined surface and two end faces, and each mesh of the screen 202 is formed as a filter hole; when the inner material trough 2 is installed in the outer material trough 1, the first right-angled surfaces of the two frame structures 201 are vertically abutted and hinged to each other at the bottom end, the second right-angled surfaces of the two frame structures 201 are located on the same horizontal plane and together form a groove for receiving waste, and the lifting lug 3 is connected to each of the two second right-angled surfaces.
[0027] Specifically, the screen 202 is also covered with disposable permeable material.
[0028] By using this disposable permeable material, the screen 202 is prevented from sticking to the concrete aggregate.
[0029] Specifically, the two lugs 3 are respectively connected to the opposite sides of the second right-angled surface of the frame structure 201.
[0030] Preferably, the bottom surface of the outer material trough 1 is formed as a flat surface that can be placed on the ground. The outer material trough 1 is connected to a V-shaped rib plate 7 for supporting the inner material trough 2. When the inner material trough 2 is installed in the outer material trough 1, the inclined surfaces of the two frame structures 201 respectively abut against the two flange plates of the V-shaped rib plate 7.
[0031] By setting the V-shaped rib 7, a supporting foundation can be provided for the inner material trough 2, ensuring that the two frame structures 201 are always in a closed state when the inner material trough 2 is embedded in the outer material trough 1.
[0032] Specifically, the inclined surface of the frame structure 201 is adapted to the size of the flange of the V-shaped rib 7.
[0033] Specifically, a hinge 203 connects the bottom ends of the first right-angled surfaces of the two frame structures 201.
[0034] When hoisting the inner material trough 2, two hoisting ropes 9 are used to suspend the two lifting lugs 3 respectively. The two hoisting ropes 9 provide upward tension and relative inward stress to ensure that the two frame structures 201 are in a closed state. After hoisting to the garbage dumping point, one of the hoisting ropes 9 is released. At this time, due to gravity, the two frame structures 201 swing around the hinge 203 and separate from each other, thereby automatically discharging the internal concrete aggregate and improving the unloading efficiency.
[0035] Preferably, the V-shaped rib 7 is provided with water passages at intervals for the wastewater to pass through, and the bottom of the outer material tank 1 is connected to a drain valve 5.
[0036] Specifically, when the inner material tank 2 is moved away from the outer material tank 1, the inner material tank 2 is suspended above the outer material tank 1 so that the residual wastewater in the inner material tank 2 can be discharged into the outer material tank 1 through the water passage.
[0037] Specifically, a support rod 8 is connected between the bottom of the V-shaped rib 7 and the inner bottom of the outer material trough 1.
[0038] By setting the support rod 8, the connection stability of the V-shaped rib plate 7 is ensured, and the support effect of the inner material groove 2 is guaranteed.
[0039] Specifically, an overflow hole 6 is provided at the top of one side wall of the external material tank 1.
[0040] By setting the overflow hole 6, excess wastewater in the external material tank 1 can be discharged in an orderly manner through the overflow hole 6, thus preventing the wastewater from overflowing in the external material tank 1.
[0041] Preferably, the bottom of the external material trough 1 is connected to a pulley system.
[0042] By setting up this pulley system, it is easy to move the outer material trough 1, thus overcoming site limitations and improving practicality.
[0043] Specifically, the top of the external material trough 1 is connected to a lifting point 4.
[0044] By setting lifting points 4 on the external material trough 1, tower cranes can lift the material for long-distance movement.
[0045] A method for cleaning the hopper of a concrete mixer truck, comprising the following steps: Step 1: Provide the cleaning device for the concrete mixer truck's hopper as described above and move it to the bottom of the concrete mixer truck's hopper. Step 2: Use a water gun to flush the discharge hopper, so that the waste material passes through the inner material tank 2 for solid-liquid separation; Step 3: After the hopper is cleaned, use a tower crane to lift the inner material trough 2 to the garbage dumping point and discharge the concrete aggregate in the inner material trough 2.
[0046] Preferably, the inner material trough 2 includes two frame structures 201, each of which is a right-angled triangular prism, and each of the frame structures 201 is covered with a screen 202 on its inclined surface and two end faces, and each mesh of the screen 202 is formed as a filter hole; when the inner material trough 2 is installed in the outer material trough 1, the first right-angled surfaces of the two frame structures 201 are vertically abutted and hinged to each other at the bottom end, the second right-angled surfaces of the two frame structures 201 are located on the same horizontal plane and together form a trough for receiving waste material, and the lifting lug 3 is connected to each of the two second right-angled surfaces; When performing step 3 above, two lifting ropes 9 are used to suspend the two lifting lugs 3 respectively, and the inner material trough 2 is lifted away from the outer material trough 1. After the inner material trough 2 is lifted to the garbage dumping point, one of the lifting ropes 9 is released, so that the two frame structures 201 automatically separate and the internal concrete aggregate is automatically discharged.
[0047] Preferably, the bottom surface of the outer material tank 1 is formed as a flat surface that can be placed on the ground. The outer material tank 1 is connected to a V-shaped rib plate 7 for supporting the inner material tank 2. The V-shaped rib plate 7 is provided with water passages for the wastewater to pass through. The bottom of the outer material tank 1 is connected to a drain valve 5. When performing step 3 above, open the drain valve 5 to discharge the wastewater in the external material tank 1.
[0048] Specifically, the drain valve 5 is connected to a drain pipe that extends into the sewer.
[0049] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention 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 the invention, 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 the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.
[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A cleaning device for the discharge hopper of a concrete mixer truck, characterized in that, The cleaning device is movable to the bottom of the concrete mixer truck's hopper to collect waste material. It includes a movable outer trough and an inner trough detachably embedded within the outer trough for collecting the waste material. The inner material tank has filter holes on its tank wall for filtering out wastewater from the waste material; The top of the inner material trough is equipped with lifting lugs for hoisting equipment.
2. The cleaning device for the discharge hopper of a concrete mixer truck as described in claim 1, characterized in that, The inner material trough includes two frame structures, each of which is a right-angled triangular prism. The inclined surface and two end faces of each frame structure are covered with a screen, and each mesh of the screen forms a filter hole. When the inner material trough is installed in the outer material trough, the first right-angled surfaces of the two frame structures are vertically abutted and hinged to each other at the bottom. The second right-angled surfaces of the two frame structures are located on the same horizontal plane and together form a trough for receiving waste. The lifting lugs are connected to both second right-angled surfaces.
3. The cleaning device for a discharge hopper of a concrete truck as claimed in claim 2, characterized in that, The bottom surface of the outer material trough is formed into a plane that can be placed on the ground. The outer material trough is connected to a V-shaped rib plate for supporting the inner material trough. When the inner material trough is installed in the outer material trough, the inclined surfaces of the two frame structures respectively abut against the two flange plates of the V-shaped rib plate.
4. The cleaning device for a discharge hopper of a concrete truck as claimed in claim 3, characterized in that, The V-shaped ribs are provided with water passages at intervals for the wastewater to pass through, and the bottom of the outer material tank is connected to a drain valve.
5. The cleaning device for a discharge hopper of a concrete truck as claimed in claim 1, wherein, The bottom of the external material trough is connected to a pulley system.
6. A method of cleaning a discharge hopper for a concrete truck, characterized in that, Including the following steps: Step 1: Provide the cleaning device for the discharge hopper of the concrete mixer truck as described in claim 1 and move it to below the discharge hopper of the concrete mixer truck; Step 2: Use a water gun to flush the discharge hopper, so that the waste material passes through the inner material tank for solid-liquid separation; Step 3: After the discharge hopper is cleaned, use a tower crane to lift the inner material trough to the garbage dumping point and discharge the concrete aggregate in the inner material trough.
7. The method of cleaning a discharge hopper for a concrete truck of claim 6, wherein, The inner material trough includes two frame structures, each of which is a right-angled triangular prism. The inclined surface and two end faces of each frame structure are covered with a screen, and each mesh of the screen is formed as a filter hole. When the inner material trough is installed in the outer material trough, the first right-angled surfaces of the two frame structures are vertically abutted and hinged to each other at the bottom. The second right-angled surfaces of the two frame structures are located on the same horizontal plane and together form a trough for receiving waste. The lifting lugs are connected to both second right-angled surfaces. When performing step 3 above, two lifting ropes are used to suspend the inner material trough from the outer material trough. After the inner material trough is hoisted to the garbage dumping point, one of the lifting ropes is released, so that the two frame structures automatically separate and the internal concrete aggregate is automatically discharged.
8. The method of cleaning a discharge hopper for a concrete truck of claim 6, wherein, The bottom surface of the outer material trough is formed into a flat surface that can be placed on the ground. The outer material trough is connected to a V-shaped rib plate for supporting the inner material trough. The V-shaped rib plate is provided with water passages for the wastewater to pass through. The bottom of the outer material trough is connected to a drain valve. When performing step 3 above, open the drain valve to discharge the wastewater in the external material tank.