Prestressed pipeline mounting equipment
The automated installation of prestressed pipes is achieved through a motor-driven feeding plate and an electric telescopic rod, solving the problem of workers lifting the pipes for installation and improving efficiency and safety.
Patent Information
- Application Number
- CN202423206268.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing prestressed duct installation equipment, workers need to lift the prestressed ducts for installation, which increases workload and safety risks and affects installation efficiency.
The system uses a motor-driven feeding plate and an electric telescopic rod. Through the cooperation of the sloping feeding plate and the protective plate, the prestressed pipe is automatically rolled into the support groove of the mounting seat and fixed by a limiting device to prevent the pipe from moving.
It reduced the workload of staff, improved installation efficiency, reduced construction safety risks, and enhanced the flexibility and safety of installation.
Smart Images

Figure CN223496072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prestressed pipe installation equipment, specifically a prestressed pipe installation device. Background Technology
[0002] Concrete pipes are classified into four categories: plain concrete pipes, ordinary reinforced concrete pipes, self-stressed reinforced concrete pipes, and prestressed concrete pipes. When carrying out construction in cities, it is necessary to combine them with prestressed pipes. When installing prestressed pipes, prestressed pipe installation equipment is required. After supporting the prestressed pipes, they are slowly connected to the pipe joints before installation.
[0003] A search revealed that Chinese utility model patent CN218880603U discloses an installation device for prestressed ducts in cast-in-place box girder beams. The device includes a fixed base, a first drive structure installed in the fixed base to move a first support seat, a hydraulic cylinder installed on the first support seat to raise and lower a second support seat, and a second drive structure installed in the second support seat to move an installation seat. The bottom of the installation seat has an arc-shaped support groove, and a protective structure for protection is installed in the installation seat. This utility model features a first drive structure installed in the fixed base, which can move the first support seat back and forth. The hydraulic cylinder installed in the first support seat can adjust the height of the second support seat. The second drive structure installed in the second support seat moves the installation seat left and right, increasing the flexibility and improving the functionality of the prestressed duct installation.
[0004] The technical solution in the application document still has shortcomings: the prestressed duct itself has a certain weight, which requires workers to lift the prestressed duct and place it into the support groove of the installation seat. This increases the workload of the workers, consumes a lot of manpower, affects the installation efficiency of the prestressed duct, and cannot guarantee that the prestressed duct can be moved to the front and rear ends, which increases the safety risks for workers during construction. Utility Model Content
[0005] The purpose of this invention is to provide a prestressed pipe installation device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a prestressed duct installation device, comprising a mounting base, a motor, a ball nut, a feeding plate, and a fixed limiting plate. The motor is mounted in the mounting base, and a lead screw is mounted on the motor's power shaft. A ball nut is threaded onto the lead screw, and the ball nut is connected to a mounting block slidably mounted on the mounting base. A connecting plate is rotatably mounted on the mounting block, and the connecting plate is connected to the feeding plate. One end of the feeding plate is sloped, and an installation groove is formed on the feeding plate. A protective plate is rotatably mounted in the installation groove via a rotating shaft, and a support rod is rotatably mounted in the installation groove via a rotating shaft. One end of the support rod engages with a slot formed on the protective plate.
[0007] Using the above technical solution, the motor installed in the mounting base rotates forward and backward, causing the ball nut threaded on the screw to move up and down. This, in conjunction with the mounting block and connecting plate, drives the feeding plate to move up and down. When feeding the prestressed duct, the feeding plate moves downward, and the prestressed duct rolls onto the feeding plate via a ramp at one end. Then, the protective plate, which is rotated and installed in the mounting groove via a shaft, is rotated out, causing the protective plate to tilt and stand upright. Next, the support rod, which is rotated and installed in the mounting groove via a shaft, is rotated upright, so that one end of the support rod engages with a slot on the protective plate, thus advancing the protective plate. The system uses a support structure, where two sets of protective plates are tilted and erected to protect the prestressed duct placed on the loading plate, preventing it from rolling off during movement. Then, the motor is started to move the loading plate upwards, carrying the prestressed duct up to a position flush with the mounting base. Protective rod A is then moved upwards, and a baffle is rotated to prevent it from moving downwards. Finally, the protective plates are lowered back into the mounting slot, and the prestressed duct is rolled into the support slot. This eliminates the need for workers to lift the prestressed duct and place it into the support slot of the mounting base, reducing the workload of workers, minimizing labor consumption, and improving the installation efficiency of the prestressed duct.
[0008] Preferably, a support groove is provided on the top surface of the mounting base, an electric telescopic rod B is mounted on the mounting base, a fixed limiting plate is mounted on the top of the electric telescopic rod B, and a V-shaped limiting pad is mounted on the bottom surface of the fixed limiting plate.
[0009] Using the above technical solution, after the prestressed duct is placed in the support groove, the electric telescopic rod B installed on the mounting base is activated to drive the fixed limiting plate to move down, causing the V-shaped limiting pad installed on the bottom surface of the fixed limiting plate to move down. The V-shaped limiting pad abuts against the upper part of the prestressed duct, pressing the prestressed duct firmly in the support groove, preventing the prestressed duct from moving forward and backward, and reducing the safety risks for workers during construction.
[0010] Preferably, a protective rod B is installed on the fixed limiting plate, a protective rod A is slidably installed on the fixed limiting plate, an assembly plate is installed at the top of the protective rod A, and a sliding groove is provided on the mounting base.
[0011] Using the above technical solution, after the prestressed duct is placed in the support groove, the rotating baffle does not obstruct the guard rod A, causing the guard rod A on the assembly plate to move down. When the electric telescopic rod B moves the fixed limiting plate down, the guard rod A and guard rod B will insert into the sliding groove opened on the mounting base, preventing the prestressed duct from rolling to both sides and improving the safety of workers during construction.
[0012] Preferably, an electric telescopic rod A is installed in the bottom groove of the mounting base, a lifting plate is installed at one end of the electric telescopic rod A, and casters are installed on the bottom surface of the lifting plate.
[0013] By adopting the above technical solution, the electric telescopic rod A installed in the bottom groove of the mounting base is activated, which drives the lifting plate installed at one end of the electric telescopic rod A to move up and down. This allows the casters installed on the bottom surface of the lifting plate to be raised and lowered, enabling the mounting base to move and be fixed, which facilitates the installation of prestressed pipes.
[0014] Preferably, a baffle is rotatably mounted on the fixed limiting plate, a limiting block is mounted on the mounting block, a screw hole is provided on the mounting base, and a fixing hole is provided on the feeding plate.
[0015] Using the above technical solution, the baffle mounted on the fixed limiting plate can block the protective rod A, causing it to move upward and be fixed, thus preventing it from obstructing the movement of the prestressed pipe into the support groove. When the feeding plate is not in use, the connecting plate and the mounting block mounted on the feeding plate are rotatably connected. The feeding plate is rotated upright and positioned on one side of the mounting base. Then, screws are used to pass through the fixing holes on the feeding plate and screw holes on the mounting base to fix and store the feeding plate. When the feeding plate is in use, the feeding plate is rotated to a horizontal plane, and the limiting block mounted on the mounting block abuts against the connecting plate, keeping the feeding plate in a horizontal plane.
[0016] Preferably, the motor is equipped with a circuit controller and a brake structure, and the ball nut is slidably connected to the slide rod in the mounting base.
[0017] By adopting the above technical solution, the circuit controller installed on the motor changes the direction of rotation of the motor shaft by reversing the positive and negative poles of the DC motor power supply, thereby achieving the purpose of bidirectional alternating rotation of the motor shaft. The brake structure installed on the motor can brake and stop the motor after power failure. The ball nut is slidably connected to the slide rod in the mounting base, which restricts the rotation of the ball nut while ensuring its stability during movement.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. By moving the feeding plate up and down, the prestressed duct is moved up to a position flush with the mounting base. The prestressed duct is then rolled into the support groove, eliminating the need for workers to lift the prestressed duct and place it into the support groove of the mounting base. This reduces the workload of workers, minimizes labor consumption, and improves the installation efficiency of the prestressed duct.
[0020] 2. By activating the electric telescopic rod B installed on the mounting base, the fixed limiting plate is moved down, causing the V-shaped limiting pad installed on the bottom surface of the fixed limiting plate to move down. The V-shaped limiting pad abuts against the upper part of the prestressed duct, pressing the prestressed duct into the support groove, thus preventing the prestressed duct from moving forward and backward, and reducing the safety risks for workers during construction. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0023] Figure 3 This is a schematic diagram of the structure of the present invention in use;
[0024] Figure 4 This is an enlarged schematic diagram of the feeding plate structure of this utility model.
[0025] In the diagram: 1. Mounting base; 2. Electric telescopic rod A; 3. Lifting plate; 4. Caster wheel; 5. Motor; 6. Lead screw; 7. Ball nut; 8. Mounting block; 9. Connecting plate; 10. Limiting block; 11. Feeding plate; 12. Mounting groove; 13. Protective plate; 14. Support rod; 15. Support groove; 16. Electric telescopic rod B; 17. Fixed limiting plate; 18. Protective rod B; 19. V-shaped limiting pad; 20. Assembly plate; 21. Protective rod A; 22. Slide groove; 23. Baffle. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Please see Figure 1-4This utility model provides an embodiment of a prestressed pipe installation device, comprising a mounting base 1, a motor 5, a ball nut 7, a feeding plate 11, and a fixed limiting plate 17. The motor 5 is installed in the mounting base 1, and a lead screw 6 is installed at the power shaft end of the motor 5. A ball nut 7 is threaded onto the lead screw 6. The ball nut 7 is rotatably connected to a mounting block 8 slidably installed on the mounting base 1. A connecting plate 9 is rotatably installed on the mounting block 8. The connecting plate 9 is connected to the feeding plate 11. One end of the feeding plate 11 is set as a slope. An installation groove 12 is opened on the feeding plate 11. A protective plate 13 is rotatably installed in the installation groove 12 via a rotating shaft. A support rod 14 is rotatably installed in the installation groove 12 via a rotating shaft. One end of the support rod 14 engages with a slot opened on the protective plate 13. The motor 5 installed in the mounting base 1 rotates forward and backward, causing the ball nut 7 threaded on the lead screw 6 to move up and down. This, in conjunction with the mounting block 8 and connecting plate 9, drives the feeding plate 11 to move up and down. When feeding the prestressed duct, the feeding plate 11 moves downward, and the prestressed duct rolls onto the feeding plate 11 via a ramp at one end. Then, the protective plate 13, which is rotatably mounted in the mounting groove 12 via a rotating shaft, is rotated out, causing the protective plate 13 to tilt and stand upright. Next, the support rod 14, which is rotatably mounted in the mounting groove 12 via a rotating shaft, is rotated upright, so that one end of the support rod 14 engages with the slot on the protective plate 13, thus aligning the protective plate 13. The two sets of protective plates 13 are tilted and erected to protect the prestressed pipe placed on the loading plate 11, preventing the prestressed pipe from rolling off during movement. Then, the loading plate 11 is moved upward by starting the motor 5, which moves the prestressed pipe upward to be flush with the platform of the mounting base 1. The protective rod A21 is moved upward and the baffle 23 is rotated to prevent the protective rod A21 from moving downward. Then, the protective plate 13 is laid back into the mounting groove 12, and the prestressed pipe is rolled into the support groove 15. There is no need for workers to lift the prestressed pipe and put it into the support groove of the mounting base, which reduces the workload of workers, reduces manpower consumption, and improves the installation efficiency of the prestressed pipe.
[0028] The mounting base 1 has a support groove 15 on its top surface. An electric telescopic rod B16 is mounted on the mounting base 1. A fixed limiting plate 17 is mounted on the top of the electric telescopic rod B16, and a V-shaped limiting pad 19 is mounted on the bottom surface of the fixed limiting plate 17. After the prestressed duct is placed in the support groove 15, the electric telescopic rod B16 on the mounting base 1 is activated, causing the fixed limiting plate 17 to move downwards. This causes the V-shaped limiting pad 19 mounted on the bottom surface of the fixed limiting plate 17 to move downwards as well. The V-shaped limiting pad 19 abuts against the upper part of the prestressed duct, securing the prestressed duct within the support groove 15. This prevents the prestressed duct from moving forward or backward, reducing safety risks for workers during construction.
[0029] A protective rod B18 is installed on the fixed limiting plate 17, and a protective rod A21 is slidably installed on the fixed limiting plate 17. An assembly plate 20 is installed at the top of the protective rod A21, and a sliding groove 22 is provided on the mounting base 1. After the prestressed duct is placed in the support groove 15, the rotating baffle 23 does not obstruct the protective rod A21, causing the protective rod A21 on the assembly plate 20 to move downward. When the electric telescopic rod B16 drives the fixed limiting plate 17 to move downward, the protective rod A21 and the protective rod B18 will insert into the sliding groove 22 provided on the mounting base 1, preventing the prestressed duct from rolling to both sides and improving the safety of workers during construction.
[0030] An electric telescopic rod A2 is installed in the bottom groove of the mounting base 1. A lifting plate 3 is installed at one end of the electric telescopic rod A2, and casters 4 are installed on the bottom surface of the lifting plate 3. By activating the electric telescopic rod A2 installed in the bottom groove of the mounting base 1, the lifting plate 3 installed at one end of the electric telescopic rod A2 is moved up and down, which can raise and lower the casters 4 installed on the bottom surface of the lifting plate 3, so that the mounting base 1 can be moved and fixed, facilitating the installation of prestressed pipes.
[0031] A baffle 23 is rotatably mounted on the fixed limiting plate 17, a limiting block 10 is mounted on the mounting block 8, a screw hole is provided on the mounting base 1, and a fixing hole is provided on the feeding plate 11. The baffle 23 rotatably mounted on the fixed limiting plate 17 can block the protective rod A21, causing it to move upwards and be fixed, thus preventing obstruction of the prestressed pipe from moving into the support groove 15. When the feeding plate 11 is not in use, the connecting plate 9 mounted on the feeding plate 11 is rotatably connected to the mounting block 8. The feeding plate 11 is rotated upright to one side of the mounting base 1, and then screws are threaded through the fixing holes on the feeding plate 11 and into the screw holes on the mounting base 1 to fix and store the feeding plate 11. When the feeding plate 11 is in use, it is rotated to a horizontal plane, and the limiting block 10 mounted on the mounting block 8 abuts against the connecting plate 9, keeping the feeding plate 11 in a horizontal position.
[0032] The motor 5 is equipped with a circuit controller and a brake structure, and the ball nut 7 is slidably connected to the slide rod in the mounting base 1. The circuit controller installed on the motor changes the direction of rotation of the motor shaft by reversing the positive and negative terminals of the DC motor power supply, thereby achieving the purpose of bidirectional alternating rotation of the motor shaft. The brake structure installed on the motor can brake and stop the motor after power failure. The ball nut 7 is slidably connected to the slide rod in the mounting base 1, which restricts the rotation of the ball nut 7 while ensuring its stability during movement.
[0033] Working principle: When feeding prestressed ducts, the feeding plate 11 is rotated to a horizontal plane. The limiting block 10 installed on the mounting block 8 abuts against the connecting plate 9, keeping the feeding plate 11 in a horizontal position. The motor 5 installed in the mounting base 1 rotates forward and backward, causing the ball nut 7 threaded on the screw 6 to move up and down. This, in conjunction with the mounting block 8 and the connecting plate 9, drives the feeding plate 11 to move up and down, causing it to move downward. The prestressed duct is rolled onto the feeding plate 11 via a ramp at one end. Then, the protective plate 13, which is rotatably installed in the mounting groove 12 via a rotating shaft, is rotated out, tilting and erecting the protective plate 13. Finally, the support rod 14, which is rotatably installed in the mounting groove 12 via a rotating shaft, is rotated upright, making the support rod... One end of 14 engages with the slot on the protective plate 13, supporting the protective plate 13. The two sets of protective plates 13 are tilted and erected to protect the prestressed duct placed on the loading plate 11, preventing it from rolling off during movement. Then, the loading plate 11 is moved upwards by starting the motor 5, moving the prestressed duct to a position flush with the mounting base 1. The protective rod A21 is then moved upwards, and the baffle 23 is rotated to prevent the protective rod A21 from moving downwards, thus avoiding obstructing the movement of the prestressed duct into the support groove 15. Finally, the protective plate 13 is lowered back into the mounting groove 12, and the prestressed duct is rolled into the support groove 15. This eliminates the need for workers to lift the prestressed duct and place it into the support groove of the mounting base, reducing the workload of the workers. This method reduces labor consumption and improves the installation efficiency of prestressed ducts. After the prestressed duct is placed in the support groove 15, the rotating baffle 23 does not obstruct the guard rod A21, causing the guard rod A21 on the assembly plate 20 to move downwards. By activating the electric telescopic rod B16 installed on the mounting base 1, the fixed limiting plate 17 is moved downwards, causing the V-shaped limiting pad 19 installed on the bottom surface of the fixed limiting plate 17 to move downwards. The V-shaped limiting pad 19 abuts against the upper part of the prestressed duct, pressing the prestressed duct firmly in the support groove 15. This prevents the prestressed duct from moving forward and backward, reducing the safety risks for workers during construction. When the electric telescopic rod B16 moves the fixed limiting plate 17 downwards, the guard rod A21 and guard rod B18 will insert into the support groove 15. The groove 22 on the mounting base 1 prevents the prestressed pipe from rolling to both sides, improving the safety of workers during construction. By activating the electric telescopic rod A2 installed in the groove at the bottom of the mounting base 1, the lifting plate 3 installed at one end of the electric telescopic rod A2 moves up and down, which can raise and lower the universal wheels 4 installed on the bottom surface of the lifting plate 3, so that the mounting base 1 can be moved and fixed, which facilitates the installation of the prestressed pipe. When the feeding plate 11 is not used, the connecting plate 9 installed on the feeding plate 11 is rotatably connected to the mounting block 8. The feeding plate 11 is rotated upright and located on one side of the mounting base 1. Then, screws are used to pass through the fixing holes opened on the feeding plate 11 and screw into the screw holes opened on the mounting base 1 to fix and store the feeding plate 11.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A prestressed duct installation device, comprising a mounting base (1), a motor (5), a ball nut (7), a feeding plate (11), and a fixing limiting plate (17), characterized in that: A motor (5) is installed in the mounting base (1). A lead screw (6) is installed on the power shaft end of the motor (5). A ball nut (7) is threaded on the lead screw (6). The ball nut (7) is connected to a mounting block (8) that is slidably installed on the mounting base (1). A connecting plate (9) is rotatably installed on the mounting block (8). The connecting plate (9) is connected to a feeding plate (11). One end of the feeding plate (11) is set as a slope. An installation groove (12) is opened on the feeding plate (11). A protective plate (13) is rotatably installed in the installation groove (12) through a rotating shaft. A support rod (14) is rotatably installed in the installation groove (12) through a rotating shaft. One end of the support rod (14) engages with a slot opened on the protective plate (13).
2. The prestressed duct installation equipment according to claim 1, characterized in that: The mounting base (1) has a support groove (15) on its top surface. An electric telescopic rod B (16) is mounted on the mounting base (1). A fixed limiting plate (17) is mounted on the top of the electric telescopic rod B (16). A V-shaped limiting pad (19) is mounted on the bottom surface of the fixed limiting plate (17).
3. The prestressed duct installation equipment according to claim 1, characterized in that: A protective rod B (18) is installed on the fixed limiting plate (17), a protective rod A (21) is slidably installed on the fixed limiting plate (17), an assembly plate (20) is installed at the top of the protective rod A (21), and a sliding groove (22) is provided on the mounting base (1).
4. The prestressed duct installation equipment according to claim 1, characterized in that: An electric telescopic rod A (2) is installed in the bottom groove of the mounting base (1). A lifting plate (3) is installed at one end of the electric telescopic rod A (2). A caster wheel (4) is installed on the bottom surface of the lifting plate (3).
5. The prestressed duct installation equipment according to claim 1, characterized in that: A baffle (23) is rotatably mounted on the fixed limiting plate (17), a limiting block (10) is mounted on the mounting block (8), a screw hole is provided on the mounting base (1), and a fixing hole is provided on the feeding plate (11).
6. The prestressed duct installation equipment according to claim 1, characterized in that: The motor (5) is equipped with a circuit controller and a brake structure, and the ball nut (7) is slidably connected to the slide rod in the mounting base (1).
Citation Information
Patent Citations
Installation equipment for prestressed pipeline of pouring box girder
CN218880603U