Grabbing device of trash remover

Through innovative design of the lifting and gripping components, the problems of large gaps and short strokes in the gripping devices of existing cleaning machines have been solved, enabling effective gripping of small-volume pollutants and long-distance gripping, thus improving the cleaning effect.

CN120925474AInactive Publication Date: 2025-11-11SICHUAN HUANENG FUJIANG HYDROPOWER CO LTD
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Patent Information

Application Number
CN202510886139.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-11-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing debris-collecting machines have large gaps when grabbing debris in waterways, making them unable to effectively grab small-sized pollutants. They also have short strokes, making them unable to grab pollutants that are far from the water surface.

Method used

A gripping device for a cleaning machine was designed, which adopts a combination of lifting and gripping components, including a winch, a winch cable, a gripping hook, a gripping plate, and a support rod. The winch controls the lifting and lowering of the back plate and the merging of the gripping hook to form a closed space to grip pollutants. Moisture is filtered out through a drainage hole. A servo motor controls the opening and closing of the gripping hook to achieve gripping of small-volume pollutants and gripping from a distance.

Benefits of technology

It effectively captures small-volume pollutants, preventing omissions, and can capture pollutants on the water surface more than ten meters away from the dam, resulting in better cleaning effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a grabbing device of a trash remover, and relates to the technical field of trash removers, the grabbing device comprises a back plate, mounting plates are welded to the two ends of the top of the outer wall of one side of the back plate, grabbing assemblies are arranged on the outer walls of the two adjacent sides of the mounting plates, the grabbing assemblies are matched with the mounting plates, and a lifting assembly is arranged on the outer wall of the top of the back plate; the lifting assembly is matched with the back plate. According to the garbage collection device, the mounting shaft rotates to drive the grabbing hooks, the grabbing plates and the supporting rods to be separated, after the lower half part of the back plate and the supporting rods are immersed into the water surface, the grabbing hooks naturally slide down under the action of the gravity of the grabbing hooks, so that the grabbing plates and the supporting rods are combined, garbage on the water surface is fished up, redundant water in the fished-up garbage can be filtered out through the through grooves and the water leakage holes, and the garbage collection efficiency is improved. And through mutual cooperation of the supporting rods, the grabbing plates, the grabbing hooks and the protective plates, gaps of the device are reduced, small-size pollutants on the river surface can be grabbed when the pollutants are grabbed, omission during pollutant grabbing is prevented, and the river surface pollutant cleaning effect is better.
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Description

Technical Field

[0001] This invention relates to the field of cleaning machine technology, and in particular to a cleaning machine gripping device. Background Technology

[0002] To ensure the cleanliness of the river surface, mechanical equipment is needed for cleaning. Among these, a debris removal machine is used to remove debris (generally referred to as sludge) from the junction of the dam bottom and the water surface. In reservoirs or rivers with significant amounts of sludge, debris removal machines are often installed to ensure the safe and normal operation of hydropower stations or pumping stations, allowing for cleaning without shutting down the system or emptying the reservoir. The grabbing device is a crucial component of this machine, primarily used to grab debris from the riverbed. However, existing debris removal machine grabbing devices have certain shortcomings:

[0003] First, when existing grabbing devices are used to grab debris in residential river channels, there are large gaps between their components in order to separate the pollutants from the river water. In the actual grabbing process, they can only grab larger debris, and some small pollutants will leak out from the gaps in the device and remain on the water surface.

[0004] Secondly, the existing grabbing devices have a short stroke. If the dam is too high above the water surface, the grabbing device cannot descend a long distance and cannot grab pollutants from the water surface. Summary of the Invention

[0005] The purpose of this invention is to provide a gripping device for a cleaning machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a gripping device for a cleaning machine, comprising a back plate, mounting plates welded to both ends of the top of one outer wall of the back plate, gripping components provided on the adjacent outer walls of the mounting plates, the gripping components being adapted to the mounting plates, a lifting component provided on the top outer wall of the back plate, the lifting component being adapted to the back plate, the gripping component including a mounting shaft rotatably mounted on the outer wall of the mounting plate, mounting blocks evenly distributed on the outer wall of the mounting shaft, the mounting blocks being fixedly connected to the mounting shaft, a hook welded to the outer wall of the mounting block, a gripping plate provided at the end of the hook, the gripping plate being adapted to the hook, drainage holes evenly distributed on the top outer wall of the gripping plate, and support rods evenly distributed on the bottom of the outer wall of the back plate, the support rods being adapted to the gripping plate, the distance between two adjacent support rods being the same as the width of the gripping plate.

[0007] Preferably, the outer wall of the back plate has equally spaced through slots, which are staggered with the support rods, and the length of the through slots is less than the height of the back plate.

[0008] Preferably, the lifting assembly includes three limiting plates, each with a winch rotatably mounted between them. The outer wall of each winch is wound with a cable, and the end of the cable is provided with a hanging ring. A drive motor is bolted to one side of the outer wall of one of the limiting plates. The output shaft of the drive motor is connected to the winch. The drive motor is provided with a protective cover adapted to it, and the protective cover is connected to the limiting plate.

[0009] Preferably, the top outer wall of the back plate is provided with connecting rings at both ends, the connecting rings are adapted to hanging rings, the connecting rings and hanging rings are both circular structures, and the top outer wall of the back plate is provided with rollers on both sides, the rollers are adapted to the back plate.

[0010] Preferably, a control assembly is provided between the rollers. The control assembly includes control plates welded to both ends of the top outer wall of the back plate. Rotary disks are rotatably mounted on the outer walls of adjacent sides of the control plates. Control cables are wound around the outer walls of the rotating disks and are connected to the grab hooks.

[0011] Preferably, a connecting roller is provided between the two gripping hooks, the end of the control cable is connected to the connecting roller, a servo motor is installed on the outer wall of one side of the control plate by bolts, the output shaft of the servo motor is connected to the rotating disk, and a barrier cover adapted to the servo motor is provided on the outer wall of the servo motor, the barrier cover having heat dissipation holes distributed at equal intervals.

[0012] Preferably, a support plate is provided at the top of the middle position of the outer wall of the back plate. The support plate is rotatably connected to the mounting shaft. The top outer wall of the support plate is provided with fixing rings that are evenly distributed. The height of the fixing rings decreases sequentially along the support plate. The control cable passes through the fixing rings sequentially.

[0013] Preferably, the inner wall of the fixing ring is provided with a protective sleeve, the protective sleeve is adapted to the fixing ring, the thickness of the protective sleeve is less than the thickness of the fixing ring, and the protective sleeve is made of wear-resistant rubber.

[0014] Preferably, mounting holes are provided on the outer walls of adjacent sides of the mounting plate, the depth of the mounting holes is less than the thickness of the mounting plate, and the mounting holes are connected to the mounting shaft.

[0015] Preferably, the top outer wall of the gripping plate has equally spaced drainage holes, the gripping hook is semi-circular, both the gripping hook and the gripping plate are made of metal, and the back plate has protective plates welded to both ends of the outer wall near the support rod, the protective plates being adapted to the support rod.

[0016] In summary, the technical effects and advantages of this invention are as follows:

[0017] In this invention, during operation, the lifting assembly controls the backplate to approach the water surface along the dam slope. At this time, the installation shaft rotates, causing the grab hook, grab plate, and support rod to separate. When the lower half of the backplate and the support rod are submerged in the water, the grab hook naturally slides down under its own weight, causing the grab plate and support rod to merge. Through the cooperation of the grab plate, support rod, and guard plate, a closed space is formed, thereby scooping up the garbage on the water surface. The through groove and drainage hole can filter out excess water from the scooped garbage. Compared with the grabbing components of traditional cleaning machines, the cooperation of the support rod, grab plate, grab hook, and guard plate reduces the gap of the device. When grabbing pollutants, it can grab small-volume pollutants on the river surface, preventing the omission of pollutants. Moreover, the gaps left by the device combined with the drainage hole can filter out river water from the pollutants, resulting in a better cleaning effect of pollutants on the river surface.

[0018] In this invention, as the backplate descends, the drive motor drives the winch to rotate, causing the winch cable to be wound up and down. After the backplate loses the tension of the winch cable, it gradually descends and slides down along the dam surface to the water surface for grabbing. Compared with traditional grabbing devices, when grabbing pollutants from the river surface, the winch rotation drives the winch cable to be wound up and down, thereby controlling the rise and fall of the backplate. The distance that the backplate can descend under the action of the winch cable is increased and unrestricted, and it can grab pollutants from the water surface ten or twenty meters away from the dam, with a better grabbing effect.

[0019] In this invention, when the grab hook and grab plate are combined with the support rod, the servo motor drives the rotating disk to rotate and release the control cable. As the control cable grows, it gradually loses its tension on the grab hook. At this time, the grab hook and grab plate gradually fall under their own weight until they are combined with the support rod to achieve a seal. At this time, the pollutants on the water surface are confined in the closed space formed by the support rod, grab plate, and guard plate. When the grab device moves to the unloading position of the cleaning machine, the servo motor rotates in the opposite direction to tighten the control cable. As the tension of the control cable 18 increases, the grab hook 5 is gradually pulled up. At this time, the grab plate separates from the support rod, and the pollutants fall into the cleaning machine for collection under their own weight. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main external structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the hook separation state structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the control component structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the gripping plate structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the backplate structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the lifting component structure of the present invention.

[0026] In the diagram: 1. Back plate; 2. Mounting plate; 3. Mounting shaft; 4. Mounting block; 5. Hook; 6. Gripping plate; 7. Support rod; 8. Through slot; 9. Limiting plate; 10. Winch; 11. Windlass; 12. Hanging ring; 13. Drive motor; 14. Connecting ring; 15. Roller; 16. Control board; 17. Rotating disk; 18. Control cable; 19. Servo motor; 20. Support plate; 21. Fixing ring; 22. Connecting roller; 23. Drain hole; 24. Mounting hole. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] refer to Figure 1-6 The illustrated gripping device for a cleaning machine includes a back plate 1. Mounting plates 2 are welded to both ends of the top of one side of the outer wall of the back plate 1. Gripping components are installed on the adjacent outer walls of the mounting plates 2, and these gripping components are adapted to the mounting plates 2. A lifting component is installed on the top outer wall of the back plate 1, and this lifting component is adapted to the back plate 1. The gripping component includes a mounting shaft 3 rotatably mounted on the outer wall of the mounting plate 2. Mounting blocks 4 are evenly distributed on the outer wall of the mounting shaft 3, and the mounting blocks 4 are fixedly connected to the mounting shaft 3. Gripping hooks 5 are welded to the outer walls of the mounting blocks 4, and gripping plates 6 are installed at the ends of the gripping hooks 5, adapting to the gripping hooks 5. Drainage holes 23 are evenly distributed on the top outer wall of the gripping plate 6. A bottom section of the outer wall of the back plate 1 is provided with… There are equidistant support rods 7, which are adapted to the gripping plate 6. The distance between two adjacent support rods 7 is the same as the width of the gripping plate 6. The outer wall of the back plate 1 has equidistant through grooves 8, which are staggered with the support rods 7. The length of the through grooves 8 is less than the height of the back plate 1. The top outer wall of the gripping plate 6 has equidistant drainage holes 23. The gripping hook 5 is semi-circular. Both the gripping hook 5 and the gripping plate 6 are made of metal. The outer walls of the back plate 1 near the support rods 7 are welded with guard plates 25, which are adapted to the support rods 7. The outer walls of the mounting plate 2 on both adjacent sides have mounting holes 24. The depth of the mounting holes 24 is less than the thickness of the mounting plate 2. The mounting holes 24 are connected to the mounting shaft 3.

[0029] With the above structure: During operation, the lifting assembly controls the back plate 1 to approach the water surface along the dam slope. At this time, the mounting shaft 3 rotates, causing the grab hook 5, grab plate 6, and support rod 7 to separate. When the lower half of the back plate 1 and the support rod 7 are immersed in the water, the grab hook 5 naturally slides down under its own weight, thereby causing the grab plate 6 and support rod 7 to merge. Through the cooperation of the grab plate 6, support rod 7, and guard plate 25, a closed space is formed, thereby picking up the garbage on the water surface. The through groove 8 and the drainage hole 23 can filter out excess water from the picked-up garbage. Compared with the grabbing components of traditional cleaning machines, the cooperation of support rod 7, grab plate 6, grab hook 5, and guard plate 25 reduces the gap of the device. When grabbing pollutants, it can grab small-volume pollutants on the river surface, preventing the pollutants from being missed. Moreover, the gaps left by the device combined with the drainage hole 23 can filter out the river water in the pollutants, resulting in a better cleaning effect of pollutants on the river surface.

[0030] like Figure 1 As shown, the lifting assembly includes three limiting plates 9. A winch 10 is rotatably mounted between each limiting plate 9. A winch cable 11 is wound around the outer wall of each winch 10, and a hanging ring 12 is provided at the end of each winch cable 11. A drive motor 13 is bolted to one side of the outer wall of one limiting plate 9. The output shaft of the drive motor 13 is connected to the winch 10. The drive motor 13 is equipped with a protective cover that matches it, and the protective cover is connected to the limiting plate 9. Connecting rings 14 are provided at both ends of the top outer wall of the back plate 1. The connecting rings 14 match the hanging rings 12. Both the connecting rings 14 and the hanging rings 12 are circular. Rollers 15 are installed on both sides, and the rollers 15 are adapted to the back plate 1. When the back plate 1 descends, the drive motor 13 drives the winch 10 to rotate and drive the winch cable 11 to retract and extend. After the back plate 1 loses the tension of the winch cable 11, it gradually descends and slides down along the dam surface to the water surface for grabbing. Compared with traditional grabbing devices, when grabbing pollutants on the river surface, the winch 10 rotates and drives the winch cable 11 to retract and extend, thereby controlling the rise and fall of the back plate 1. The distance that the back plate 1 can descend under the action of the winch cable 11 is increased and unrestricted. It can grab pollutants on the water surface that are ten or twenty meters away from the dam, and the grabbing effect is better.

[0031] like Figure 3As shown, a control assembly is provided between the rollers 15. The control assembly includes control plates 16 welded to both ends of the top outer wall of the back plate 1. Rotary disks 17 are rotatably mounted on the outer walls of adjacent sides of the control plates 16. Control cables 18 are wound around the outer walls of the rotating disks 17 and are connected to hooks 5. A connecting roller 22 is provided between the two hooks 5. The end of the control cable 18 is connected to the connecting roller 22. A servo motor 19 is bolted to the outer wall of one side of the control plate 16. The output shaft of the servo motor 19 is connected to the rotating disk 17. A barrier cover adapted to the servo motor 19 is provided on the outer wall of the servo motor 19. The barrier cover has heat dissipation holes distributed at equal intervals. A support plate 20 is provided at the top of the middle position of the outer wall of the back plate 1. The support plate 20 is rotatably connected to the mounting shaft 3. Fixed rings 21 are distributed at equal intervals on the top outer wall of the support plate 20. The height of the fixed rings 21 decreases sequentially along the support plate 20. The control cable 18 passes through the fixed rings 21 sequentially. 1. A protective sleeve is provided on the inner wall of the fixed ring 21. The protective sleeve is adapted to the fixed ring 21 and its thickness is less than that of the fixed ring 21. The protective sleeve is made of wear-resistant rubber. When the grab hook 5, grab plate 6 and support rod 7 are combined, the servo motor 19 drives the rotating disk 17 to rotate and release the control cable 18. As the control cable 18 grows, it gradually loses its tension on the grab hook 5. At this time, the grab hook 5 and grab plate 6 gradually fall under their own weight until they are combined with the support rod 7 to achieve a seal. At this time, the pollutants on the water surface are confined in the closed space formed by the support rod 7, grab plate 6 and protective plate 25. When the grabbing device moves to the unloading position of the cleaning machine, the servo motor 19 rotates in the opposite direction to tighten the control cable 18. As the tension of the control cable 18 increases, the grab hook 5 is gradually pulled up. At this time, the grab plate 6 and support rod 7 separate. At this time, the pollutants fall into the cleaning machine for collection under their own weight.

[0032] Working principle of this invention:

[0033] During operation, the lifting assembly control backplate 1 moves towards the water surface along the dam slope. At this time, the mounting shaft 3 rotates, causing the grab hook 5, grab plate 6, and support rod 7 to separate. When the lower half of the backplate 1 and the support rod 7 are immersed in the water, the grab hook 5 naturally slides down under its own weight, causing the grab plate 6 and support rod 7 to merge. Through the cooperation of the grab plate 6, support rod 7, and guard plate 25, a closed space is formed, thereby scooping up the garbage on the water surface. The through groove 8 and the drain hole 23 can filter out excess water from the scooped garbage. Compared with the grabbing components of traditional cleaning machines, the cooperation of the support rod 7, grab plate 6, grab hook 5, and guard plate 25 reduces the gap of the device. When grabbing pollutants, it can grab small-volume pollutants on the river surface, preventing the pollutants from being missed. Moreover, the gap left by the device combined with the drain hole 23 can filter out the river water in the pollutants, resulting in a better cleaning effect of pollutants on the river surface.

[0034] When the grab hook 5, grab plate 6, and support rod 7 are combined, the servo motor 19 drives the rotating disk 17 to rotate and release the control cable 18. As the control cable 18 grows, it gradually loses its tension on the grab hook 5. At this time, the grab hook 5 and grab plate 6 gradually fall under their own weight until they are combined with the support rod 7 to achieve a seal. At this time, the pollutants on the water surface are confined in the closed space formed by the support rod 7, grab plate 6, and guard plate 25. When the grabbing device moves to the unloading position of the cleaning machine, the servo motor 19 rotates in the opposite direction to tighten the control cable 18. As the tension of the control cable 18 increases, the grab hook 5 is gradually pulled up. At this time, the grab plate 6 separates from the support rod 7. At this time, the pollutants fall into the cleaning machine for collection under their own weight.

[0035] As the backplate 1 descends, the drive motor 13 drives the winch 10 to rotate, which in turn causes the winch cable 11 to be wound up and down. After the backplate 1 loses the tension of the winch cable 11, it gradually descends and slides down along the dam surface to the water surface for grabbing. Compared with traditional grabbing devices, when grabbing pollutants from the river surface, the winch 10 rotates, which drives the winch cable 11 to be wound up and down, thereby controlling the rise and fall of the backplate 1. Under the action of the winch cable 11, the distance that the backplate 1 can descend is increased and unrestricted. It can grab pollutants from the water surface that are 10 to 20 meters away from the dam, and the grabbing effect is better.

[0036] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gripping device for a cleaning machine, comprising a back plate (1), characterized in that: Mounting plates (2) are welded to both ends of the top of one side of the outer wall of the back plate (1). Gripping components are provided on the adjacent outer walls of the mounting plates (2), and these gripping components are adapted to the mounting plates (2). A lifting component is provided on the top outer wall of the back plate (1), and this lifting component is adapted to the back plate (1). The gripping component includes a mounting shaft (3) rotatably mounted on the outer wall of the mounting plate (2). Mounting blocks (4) are evenly distributed on the outer wall of the mounting shaft (3). The mounting blocks (4) and the mounting shaft... (3) Fixed connection, the outer wall of the mounting block (4) is welded with a hook (5), the end of the hook (5) is provided with a gripping plate (6), the gripping plate (6) is adapted to the hook (5), the top outer wall of the gripping plate (6) is provided with equally spaced drainage holes (23), the bottom of the outer wall of the back plate (1) is provided with equally spaced support rods (7), the support rods (7) are adapted to the gripping plate (6), and the distance between two adjacent support rods (7) is the same as the width of the gripping plate (6).

2. The gripping device for a cleaning machine according to claim 1, characterized in that: The outer wall of the back plate (1) is provided with equally spaced through grooves (8), which are staggered with the support rod (7). The length of the through grooves (8) is less than the height of the back plate (1).

3. The gripping device for a cleaning machine according to claim 2, characterized in that: The lifting assembly includes a limiting plate (9), there are three limiting plates (9), and a winch (10) is rotatably installed between each of the limiting plates (9). The outer wall of the winch (10) is wound with a cable (11), and a hanging ring (12) is provided at the end of the cable (11). A drive motor (13) is bolted to one side of the outer wall of one of the limiting plates (9). The output shaft of the drive motor (13) is connected to the winch (10). The drive motor (13) is provided with a protective cover that is adapted to it. The protective cover is connected to the limiting plate (9).

4. The gripping device for a cleaning machine according to claim 3, characterized in that: The back plate (1) has connecting rings (14) at both ends of the top outer wall. The connecting rings (14) are adapted to the hanging rings (12). Both the connecting rings (14) and the hanging rings (12) are circular structures. Rollers (15) are provided on both sides of the top outer wall of the back plate (1). The rollers (15) are adapted to the back plate (1).

5. The gripping device for a cleaning machine according to claim 4, characterized in that: A control assembly is provided between the rollers (15). The control assembly includes control plates (16) welded to both ends of the top outer wall of the back plate (1). Rotary disks (17) are rotatably installed on the outer walls of adjacent sides of the control plates (16). A control cable (18) is wound around the outer wall of the rotating disks (17). The control cable (18) is connected to the grab hook (5).

6. The gripping device for a cleaning machine according to claim 5, characterized in that: A connecting roller (22) is provided between the two gripping hooks (5). The end of the control cable (18) is connected to the connecting roller (22). A servo motor (19) is installed on the outer wall of the control plate (16) on one side by bolts. The output shaft of the servo motor (19) is connected to the rotating disk (17). A barrier cover adapted to the servo motor (19) is provided on the outer wall of the servo motor (19). The barrier cover has heat dissipation holes distributed at equal intervals.

7. The gripping device for a cleaning machine according to claim 5, characterized in that: A support plate (20) is provided at the top of the middle position of the outer wall of the back plate (1). The support plate (20) is rotatably connected to the mounting shaft (3). The top outer wall of the support plate (20) is provided with fixing rings (21) distributed at equal intervals. The height of the fixing rings (21) decreases sequentially along the support plate (20). The control cable (18) passes through the fixing rings (21) sequentially.

8. The gripping device for a cleaning machine according to claim 7, characterized in that: The inner wall of the fixing ring (21) is provided with a protective sleeve, which is adapted to the fixing ring (21). The thickness of the protective sleeve is less than the thickness of the fixing ring (21), and the protective sleeve is made of wear-resistant rubber.

9. A gripping device for a cleaning machine according to claim 2, characterized in that: The mounting plate (2) has mounting holes (24) on both sides of its outer wall. The depth of the mounting holes (24) is less than the thickness of the mounting plate (2). The mounting holes (24) are connected to the mounting shaft (3).

10. The gripping device for a cleaning machine according to claim 1, characterized in that: The gripping plate (6) has drainage holes (23) evenly distributed on the top outer wall. The gripping hook (5) is semi-circular. Both the gripping hook (5) and the gripping plate (6) are made of metal. The back plate (1) has protective plates (25) welded to both ends of the outer wall near the support rod (7). The protective plates (25) are compatible with the support rod (7).