A device for grabbing large construction waste blocks in a park drainage network
By designing a large construction waste block grabbing device for park drainage pipe networks that includes a supporting tripod and grabbing claws, the problem of unstable grabbing in narrow pipes by traditional equipment has been solved, and efficient and safe waste block cleaning has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA YANGTZE POWER
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, traditional gripping equipment has difficulty effectively gripping and ensuring a stable grip in narrow pipes, and garbage blocks are prone to scattering and slipping. Manual cleaning poses safety hazards and is inefficient.
A large construction waste block grabbing device for park drainage pipe network was designed, including a supporting tripod, probe, connecting seat, mounting head, grabbing claw and other components. The grabbing claw has an inwardly curved hook and an upwardly bent part. It is hydraulically driven to grab and drag. It is equipped with a camera and lighting to assist in operation.
It enables reliable grabbing and dragging of large construction waste blocks in narrow pipes, preventing waste from scattering and slipping, improving cleaning efficiency and eliminating the safety hazards of manual cleaning.
Smart Images

Figure CN224449395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste treatment technology, and in particular to a device for grabbing large blocks of construction waste in a park drainage network. Background Technology
[0002] During the construction of the park's drainage network (especially the main pipes and trunk lines), large, heavy construction waste often remains. These debris blocks are typically large and heavy, making them impossible to remove manually. Existing methods have the following shortcomings: high-pressure water jets are effective against sticky sludge, but have limited effectiveness against large, hard blocks, failing to grasp and remove them; traditional pipe cleaning robots or grabbers equipped with dredging equipment are also used, but they struggle to effectively grasp and secure the debris within narrow pipes, leading to the debris easily scattering and slipping; the most traditional manual cleaning method poses significant safety hazards, as personnel cannot easily enter confined spaces, are incapable of handling large, heavy objects, and are inefficient. Therefore, there is an urgent need for a grabbing device that can penetrate through pipe openings and reliably grab and drag out large construction waste blocks within limited spaces. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a large construction waste block grabbing device for park drainage pipe network, which aims to solve the technical problems of traditional grabbing equipment in the prior art that it is difficult to effectively grab and ensure the grabbing is stable in narrow pipes, the waste block is easy to scatter and slip, manual cleaning poses safety hazards and low efficiency.
[0004] The technical solution of this utility model is: a large construction waste block grabbing device for park drainage pipe network, including a supporting tripod, on which a probe is slidably installed. The front end of the probe is detachably connected to a connecting seat. The front end of the connecting seat is provided with an installation head. Multiple grabbing claws are elastically installed at the front end of the installation head. The rear ends of each grabbing claw are rotatably installed in the same ring. The ring is slidably installed on the installation head. The rear end of the ring is slidably connected to a slip ring assembly. The slip ring assembly is slidably installed on the connecting seat. The slip ring assembly can drive the ring to slide, thereby controlling the opening and closing of each grabbing claw. The rear end of the slip ring assembly is detachably connected to an opening and closing control rod, which is slidably connected to the supporting tripod.
[0005] Furthermore, in this invention, each of the gripping claws has an inwardly curved hook at its front end and an upwardly bent portion at its rear end.
[0006] Furthermore, in this utility model, the front end of the mounting head is provided with a front limit stop corresponding to each of the gripping claws, and each gripping claw is rotatably mounted on the corresponding front limit stop by a torsion spring.
[0007] Furthermore, in this invention, the bent portion at the rear end of the gripper is located inside the ring sleeve, and the ring sleeve is provided with a guide space for guiding the rotation of the bent portion.
[0008] Furthermore, the mounting head of this utility model is provided with a guide strip, the ring sleeve is slidably connected to the guide strip, and the rear end of the mounting head is provided with a rear limiting block for positioning the ring sleeve.
[0009] Furthermore, the slip ring assembly of this utility model includes a guide ring that is slidably connected to the connecting seat. The front end of the guide ring is provided with multiple connecting rods, and each of the multiple connecting rods corresponds to one of the multiple gripping claws. Each connecting rod passes through the guide space, and the connecting rods are connected by reinforcing ribs.
[0010] Furthermore, in this utility model, the front end of the connecting rod is engaged within the guide space, and the front end of the connecting rod also has a fitting portion that matches the bent portion of the rear end of the gripping claw.
[0011] Furthermore, in this invention, each of the gripping claws is connected to a gripping net.
[0012] Furthermore, the top of the mounting head described in this utility model is equipped with a camera and a lighting lamp.
[0013] Compared with the prior art, this utility model has the following advantages: The gripping claw of this utility model has a strong gripping force, which can provide sufficient circumferential wrapping force, firmly "hug" or "embed" large irregular garbage blocks, and ensure stable gripping; The entire device can retract and probe into pipes with small diameters, and then unfold at the target position to grip, which can adapt to garbage blocks of different shapes and sizes, has strong adaptability, and the garbage blocks are not easy to scatter or slip off; The unfolding, gripping and dragging process of the device can be driven by external hydraulics, which can go deep into the inside of the pipe to work without manual cleaning, thereby avoiding potential safety hazards and improving cleaning efficiency. Attached Figure Description
[0014] Figure 1 This is a top view of the present invention;
[0015] Figure 2 This is a schematic diagram of the placement of this utility model;
[0016] Figure 3 This is a schematic diagram of the state during the grasping process of this utility model;
[0017] Figure 4 This is a schematic diagram of the state when the grasping is completed according to this utility model.
[0018] The components include: 1. Tripod support; 2. Probe; 3. Connecting seat; 4. Mounting head; 5. Gripping claw; 5a. Hook; 5b. Bending part; 6. Ring sleeve; 7. Slip ring assembly; 701. Guide ring; 702. Connecting rod; 702a. Fitting part; 703. Reinforcing rib; 8. Opening and closing control rod; 9. Front limit stop; 10. Guide space; 11. Guide strip; 12. Rear limit stop; 13. Gripping net; 14. Camera; 15. Lighting lamp; A. Pipeline. Detailed Implementation
[0019] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0020] Example:
[0021] The accompanying drawings illustrate a specific embodiment of the present invention: a large-scale construction waste grabbing device for park drainage pipe networks. Figure 1 It mainly includes a supporting tripod 1, on which a probe 2 is slidably mounted. The front end of the probe 2 is detachably connected to a connecting seat 3, and the front end of the connecting seat 3 is fixedly connected to an installation head 4.
[0022] The support tripod 1 supports the entire device. The probe rod 2 can move back and forth under the guidance of the support tripod 1, and drive the connecting seat 3 and the mounting head 4 to extend into the pipe A. The connecting seat 3 is detachably connected to the probe rod 2, and can be connected by thread or other detachable means, so that the probe rod 2 can be replaced with different lengths as needed to adapt to pipes A of different lengths.
[0023] The front end of the mounting head 4 is flexibly equipped with multiple gripping claws 5. The multiple gripping claws 5 are used to grip the garbage block. The number of gripping claws 5 can be 2 to 6. The more claws there are, the more circumferential wrapping force can be provided.
[0024] Each gripper 5 has an inwardly curved hook 5a at its front end. The multiple hooks 5a of multiple grippers 5 are grouped together to improve the wrapping effect and firmly "hold" the garbage block. The hooks 5a can also be used to "embed" into the garbage block to ensure a stable grip. The rear end of each gripper 5 has an upwardly bent portion 5b, which controls the opening and closing of the gripper 5.
[0025] The front end of the mounting head 4 is provided with a front limit block 9 corresponding to each gripper 5. Each gripper 5 is rotated and mounted on the corresponding front limit block 9 by a torsion spring. Under the action of the torsion spring, the gripper 5 is in a retracted state.
[0026] The bent portions 5b at the rear ends of each gripper 5 are rotatably mounted within the same ring 6. The ring 6 has a guide space 10 for guiding the rotation of the bent portions 5b. The ring 6 is slidably mounted on the mounting head 4, which has a guide strip 11. The ring 6 is slidably connected to the guide strip 11. The rear end of the mounting head 4 also has a rear limit stop 12 for positioning the ring 6. The ring 6 can slide between the front limit stop 9 and the rear limit stop 12.
[0027] In the initial state, the gripper 5, under the action of the torsion spring, has its bent part 5b raised and presses the ring 6 against the front limit block 9. When the ring 6 moves backward along the guide bar 11 on the mounting head 4, the bent part 5b rotates downward under the action of the guide space 10, causing the front hook 5a to open and the gripper 5 to be in an unfolded state.
[0028] The rear end of the ring sleeve 6 is slidably connected to a slip ring assembly 7. The slip ring assembly 7 includes a guide ring 701 slidably connected to the connecting seat 3. The front end of the guide ring 701 is provided with multiple connecting rods 702. The connecting rods 702 are connected by reinforcing ribs 703, making the overall structure more stable. The multiple connecting rods 702 correspond one-to-one with multiple gripping claws 5. Each connecting rod 702 passes into the guide space 10. The front end of the connecting rod 702 is locked in the guide space 10, which can drive the ring sleeve 6 to move backward. The front end of the connecting rod 702 has a fitting part 702a that matches the bending part 5b. The connecting rod 702 can slide forward in the guide space 10 and use the fitting part 702a to abut against the bending part 5b, thereby locking the gripping claws 5.
[0029] The rear end of the slip ring assembly 7 is detachably connected to an opening / closing control rod 8. Specifically, the opening / closing control rod 8 is connected to the guide ring 701 by a threaded connection or other detachable connection method, so that the opening / closing control rod 8 can be replaced with different lengths as needed to adapt to pipes A of different lengths. The opening / closing control rod 8 is slidably connected to the supporting tripod 1, and the opening / closing control rod 8 can move back and forth under the guidance of the supporting tripod 1, thereby driving the slip ring assembly 7 and the ring sleeve 6 to move and control the opening and closing of the gripper 5.
[0030] In addition, each gripping claw 5 is connected to a gripping net 13, which can better wrap and grip the garbage block and prevent the garbage block from scattering or slipping away.
[0031] The top of the mounting head 4 is also equipped with a camera 14 and a light 15 to assist the operator in locating the waste block and observing the grabbing status.
[0032] When this utility model device is used in practice, such as Figure 2As shown, the entire device is first placed at the opening of pipe A, with the tripod 1 positioned outside pipe A and the gripping claw 5 at the front end inside pipe A. Then, external hydraulic pressure drives the probe 2 and the opening / closing control lever 8 to move forward synchronously. During this movement, the camera 14 and the lighting 15 are turned on to help locate the debris and observe the gripping status. Once in position, as shown... Figure 3 As shown, at this point, the opening / closing control lever 8 is driven to move backward, which in turn moves the slip ring assembly 7 and the ring sleeve 6 backward, causing the gripper 5 to unfold. The garbage block is now located in front of the gripper 5. Next, external hydraulic pressure drives the probe 2 and the opening / closing control lever 8 to move forward synchronously, placing the garbage block inside the gripper 5. Then, the opening / closing control lever 8 is driven forward again, causing the slip ring assembly 7 to move forward. The gripper 5 and the ring sleeve 6 automatically reset under the action of the torsion spring, causing the gripper 5 to retract, thus firmly "holding" the garbage block in conjunction with the gripping net 13. Figure 4 As shown, the opening and closing control lever 8 continues to move forward, so that the contact part 702a at the front end of the connecting rod 702 abuts against the bending part 5b, locking the gripper 5 to prevent the gripper 5 from opening when dragging the garbage block outward. Finally, the probe rod 2 and the opening and closing control lever 8 are driven backward in sync, so that the garbage block can be dragged out of the pipe A.
[0033] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.
Claims
1. A park drainage network large construction waste block grabbing device, characterized in that: The device includes a support tripod (1), on which a probe (2) is slidably mounted. The front end of the probe (2) is detachably connected to a connecting seat (3). The front end of the connecting seat (3) is provided with an installation head (4). The front end of the installation head (4) is elastically mounted with multiple gripping claws (5). The rear ends of each gripping claw (5) are rotatably mounted in the same ring (6). The ring (6) is slidably mounted on the installation head (4). The rear end of the ring (6) is slidably connected to a slip ring assembly (7). The slip ring assembly (7) is slidably mounted on the connecting seat (3). The slip ring assembly (7) can drive the ring (6) to slide, thereby controlling the opening and closing of each gripping claw (5). The rear end of the slip ring assembly (7) is detachably connected to an opening and closing control rod (8). The opening and closing control rod (8) is slidably connected to the support tripod (1).
2. The park drainage pipe network large construction waste block grabbing device according to claim 1, characterized in that: Each of the gripping claws (5) has an inwardly curved hook (5a) at its front end and an upwardly bent portion (5b) at its rear end.
3. The park drainage pipe network large construction waste block grabbing device according to claim 2, characterized in that: The front end of the mounting head (4) is provided with a front limit block (9) corresponding to each of the gripping claws (5), and each gripping claw (5) is rotated and mounted on the corresponding front limit block (9) by a torsion spring.
4. The park drainage pipe network large construction waste block grabbing device according to claim 3, characterized in that: The bent portion (5b) at the rear end of the gripper (5) is located inside the ring (6), and the ring (6) is provided with a guide space (10) for guiding the bent portion (5b) to rotate.
5. The large construction waste block grabbing device for park drainage pipe network according to claim 4, characterized in that: The mounting head (4) is provided with a guide strip (11), the ring sleeve (6) is slidably connected to the guide strip (11), and the rear end of the mounting head (4) is provided with a rear limiting block (12) for positioning the ring sleeve (6).
6. The park drainage pipe network large construction waste block grabbing device according to claim 4, characterized in that: The slip ring assembly (7) includes a guide ring (701) that is slidably connected to the connecting seat (3). The front end of the guide ring (701) is provided with multiple connecting rods (702). The multiple connecting rods (702) correspond one-to-one with the multiple gripping claws (5). Each connecting rod (702) passes through the guide space (10). The connecting rods (702) are connected to each other by reinforcing ribs (703).
7. The park drainage pipe network large construction waste block grabbing device according to claim 6, characterized in that: The front end of the connecting rod (702) is engaged in the guide space (10), and the front end of the connecting rod (702) also has a fitting part (702a) that matches the bent part (5b) at the rear end of the gripper (5).
8. The park drainage pipe network large construction waste block grabbing device according to claim 1, characterized in that: Each of the gripping claws (5) is connected to a gripping net (13).
9. The park drainage pipe network large construction waste block grabbing device according to claim 1, characterized in that: The top of the mounting head (4) is equipped with a camera (14) and a light (15).