Device facilitating unloading of reinforced concrete drainage pipe
By designing a device that facilitates unloading reinforced concrete drainage pipes, and utilizing components such as hoisting frames and motor drives to achieve multi-pipe unloading, the problem of low unloading efficiency in existing technologies is solved, and a safe, stable, and efficient unloading effect with non-vertical hoisting is achieved.
Patent Information
- Application Number
- CN202520481191.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The existing hoisting equipment is unable to effectively transfer the piled-up cement pipes into the installation trench, resulting in low unloading efficiency.
A device for unloading reinforced concrete drainage pipes was designed. It consists of components such as a hoisting frame, a counterweight base plate, a hub motor, guide rollers, quick-release rollers, traction ropes, and a torque motor. It achieves multi-pipe unloading through a moving device, rope threading, fixing, and motor drive. The device has a simple structure, a low center of gravity, and supports non-vertical hoisting.
It enables safe and stable unloading of multiple drainage pipes, increases structural strength, lowers the center of gravity, makes unloading safer, supports non-vertical hoisting, and improves unloading efficiency and stability.
Smart Images

Figure CN223792792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply and drainage technology, specifically a device for unloading reinforced concrete drainage pipes. Background Technology
[0002] Cement pipes are prefabricated pipes made of cement and steel bars, utilizing the principle of centrifugal force from utility poles. Reinforced concrete cement pipes are prefabricated components widely used in municipal engineering, drainage systems, water conservancy projects, and other fields. They combine the compressive strength of concrete with the tensile strength of steel bars, and have the characteristics of high strength and good durability.
[0003] Chinese utility model patent CN211687962U, published on October 16, 2020, discloses a pipe hoisting frame, belonging to the field of pipe hoisting technology. The pipe hoisting frame includes a crossbeam, a pair of spaced-apart supports, a first diagonal brace, and a hoisting device. The two ends of the crossbeam are connected to the two supports respectively. The first diagonal brace connects the crossbeam and the supports. The height of the supports is adjustable. A hanging ring is provided on the crossbeam, and the hoisting device is connected to the crossbeam through the hanging ring. In this utility model, the two ends of the crossbeam are connected to the two supports respectively, forming the main support structure of the pipe hoisting frame. The first diagonal brace connects the crossbeam and the supports to improve the support capacity and stability of the pipe hoisting frame. The hoisting device is connected to the crossbeam through the hanging ring. The height of the supports is adjustable, thus adapting to various hoisting situations. The overall structure of this pipe hoisting frame is simple, and the hoisting is flexible and convenient. It can adapt to the installation and hoisting of large-diameter pipes and pipes in complex sites, saving manpower, reducing hoisting costs, and improving construction efficiency.
[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the existing hoisting devices can only be fixed in one position for up and down movement, but in actual cement pipe installation situations, they cannot effectively transfer the accumulated cement pipes into the installation trench, and cannot effectively improve the efficiency of transferring cement pipes. Utility Model Content
[0005] The purpose of this invention is to solve the technical problem that existing hoisting devices can only be fixed in one position for vertical transport, but in actual cement pipe installation situations, they cannot effectively transfer the accumulated cement pipes into the installation trench, thus failing to effectively improve the efficiency of cement pipe transfer. This invention provides a device for unloading reinforced concrete drainage pipes.
[0006] To achieve the above objectives, the present invention adopts the following technical solution;
[0007] This utility model discloses a device for facilitating the unloading of reinforced concrete drainage pipes, comprising a hoisting frame; a counterweight base plate is symmetrically fixed to the lower end of the hoisting frame; multiple hub motors are fixed to the lower surface of the counterweight base plate; symmetrical clearance grooves are provided on the hoisting frame; a first pin and a second pin are inserted into the clearance grooves; guide rollers and quick-release rollers are respectively inserted into the first pin and the second pin; a traction rope is sleeved on the quick-release roller; a storage tray is fixed to the end of the traction rope; and a torque motor is fixed to the storage tray.
[0008] Furthermore, the torque motor is fixedly connected to the counterweight base plate; and reinforcing plates are fixedly connected at intervals on the hoisting frame.
[0009] Furthermore, a sliding sleeve is fitted onto the hoisting frame; a hand-operated hoist is connected to the sliding sleeve.
[0010] The present invention provides a device for facilitating the unloading of reinforced concrete drainage pipes, which has the following beneficial effects:
[0011] 1. This utility model allows for the unloading of drain pipes located on vehicles. Simply move the device to both ends of the truck, remove the second pin, remove the quick-release roller, pass the traction rope through the drain pipe, and then return it to the clearance groove. Insert the second pin again for fixation, and then energize the torque motor to rotate the storage disc to collect the traction rope, thereby lifting the drain pipe. Then, move the lifting frame to unload multiple drain pipes. The structure is simple, safer, and more stable. The overall center of gravity of the device is low, making unloading safer, and it can also lift drain pipes in non-vertical positions.
[0012] 2. This utility model increases the structural strength of the lifting frame by using reinforcing plates, thus enabling it to withstand heavier drainage pipes without deformation, resulting in more stable and precise long-term use; the grooves restrict the movement path of the traction rope and reduce friction, making the lifting of drainage pipes by traction rope transmission safer and more stable. Attached Figure Description
[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;
[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0016] Figure 3 This is a front view structural diagram of the present invention.
[0017] The following are the labels in the diagram: 1. Lifting frame; 2. Counterweight base plate; 3. Hub motor; 4. Clearance groove; 5. First pin; 6. Guide roller; 7. Traction rope; 8. Storage tray; 9. Torque motor; 10. Quick release roller; 11. Second pin; 12. Reinforcing plate; 13. Sliding sleeve; 14. Hand chain hoist; 15. Hook. Detailed Implementation
[0018] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.
[0021] Please see Figure 1-3 As shown, a device for unloading reinforced concrete drainage pipes includes a lifting frame 1; a counterweight base plate 2 is symmetrically fixed to the lower end of the lifting frame 1; multiple hub motors 3 are fixed to the lower surface of the counterweight base plate 2; symmetrical clearance grooves 4 are provided on the lifting frame 1; a first pin 5 and a second pin 11 are inserted into the clearance groove 4; guide rollers 6 and quick-release rollers 10 are respectively inserted into the first pin 5 and the second pin 11; a traction rope 7 is sleeved on the quick-release roller 10; a storage tray 8 is fixed to the end of the traction rope 7; a torque motor 9 is fixed to the storage tray 8, which is used when unloading is required. When the drain pipe is located on the vehicle, simply move this device to both ends of the truck. At this time, remove the second pin 11, remove the quick-release roller 10 and pass the traction rope 7 through the drain pipe, then reset it back into the clearance groove 4, and then insert the second pin 11 to fix it. Then, the torque motor 9 is energized to drive the storage tray 8 to rotate and store the traction rope 7, thereby lifting the drain pipe. Then, move the lifting frame 1 to unload multiple drain pipes. At the same time, the structure is simple, safer and more stable, and the overall center of gravity of the device is low, making unloading safer. It can also lift drain pipes in non-vertical positions.
[0022] The torque motor 9 is fixedly connected to the counterweight base plate 2; the lifting frame 1 is fixedly connected with reinforcing plates 12 at intervals. The reinforcing plates 12 increase the structural strength of the lifting frame 1, so that it can withstand the weight of the drainage pipe without deformation, thus making it more stable and accurate for long-term use.
[0023] A sliding sleeve 13 is fitted onto the hoisting frame 1; a hand-operated hoist 14 is connected to the sliding sleeve 13, which allows the drain pipe to be hoisted vertically up and down as needed.
[0024] The lower end of the hand chain hoist 14 is connected to a hook 15, which is inserted into both ends of the drain pipe. This allows the drain pipe to be lifted by two hooks, thus enabling two methods of unloading and draining.
[0025] The guide roller 6 has a groove corresponding to the traction rope 7. The groove restricts the movement path of the traction rope 7 and reduces friction, making the lifting of the drainage pipe safer and more stable when the traction rope 7 is driven.
[0026] The traction rope 7 is made of braided metal wire, which makes it resistant to wear and tear on the drain pipe and can withstand greater gravity, thus extending its service life.
[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A device for facilitating unloading of reinforced concrete drainage pipes, characterized in that; The system includes a lifting frame (1); a counterweight base plate (2) is symmetrically fixed to the lower end of the lifting frame (1); multiple hub motors (3) are fixed to the lower surface of the counterweight base plate (2); symmetrical clearance grooves (4) are provided on the lifting frame (1); a first pin (5) and a second pin (11) are inserted into the clearance groove (4); guide rollers (6) and quick-release rollers (10) are respectively inserted into the first pin (5) and the second pin (11); a traction rope (7) is sleeved on the quick-release roller (10); a storage tray (8) is fixed to the end of the traction rope (7); a torque motor (9) is fixed to the storage tray (8).
2. The device for facilitating unloading of reinforced concrete drainage pipes according to claim 1, characterized in that: The torque motor (9) is fixedly connected to the counterweight base plate (2); the lifting frame (1) is fixedly connected with reinforcing plates (12) at intervals.
3. The device for facilitating unloading of reinforced concrete drainage pipes according to claim 1, characterized in that: A sliding sleeve (13) is fitted onto the hoisting frame (1); a hand-operated hoist (14) is connected to the sliding sleeve (13).
4. The device for facilitating unloading of reinforced concrete drainage pipes according to claim 3, characterized in that: The lower end of the hand chain hoist (14) is connected to a hook (15).
5. The device for facilitating unloading of reinforced concrete drainage pipes according to claim 1, characterized in that: The guide roller (6) has a groove corresponding to the traction rope (7).
6. The device for facilitating unloading of reinforced concrete drainage pipes according to claim 1, characterized in that: The traction rope (7) is made of braided metal wire.
Citation Information
Patent Citations
Pipeline hoisting frame
CN211687962U