Transfer device for bridge expansion joint installation
By designing an automated bridge expansion joint transport device, which utilizes servo motors and drive motors working in tandem, the problems of damage and human injury to bridge expansion joints during handling have been solved, achieving safe and reliable transport.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGSHUI GUANOU ENGINEERING RUBBER CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, bridge expansion joints are easily damaged during transportation and may cause injury to personnel.
A transfer device comprising a base, mounting bracket, push handle, moving mechanism, drive mechanism, winding mechanism, and fixing belt was designed. Through the coordinated action of servo motor and drive motor, the automatic fixing and movement of bridge expansion joints are realized.
This enables the safe and reliable transfer of bridge expansion joints, avoiding damage and injury caused by manual handling.
Smart Images

Figure CN224184311U_ABST
Abstract
Description
A transfer device for installing bridge expansion joints Technical Field
[0001] This utility model belongs to the field of bridge expansion joint technology, and in particular relates to a transfer device for installing bridge expansion joints. Background Technology
[0002] Bridge expansion joints are an important structural device in bridge engineering, used to meet the deformation requirements of bridges caused by factors such as temperature changes, concrete shrinkage, and load, ensuring the integrity of the bridge structure and the comfort of driving.
[0003] Bridge expansion joints are gap devices installed between the superstructure of a bridge, between the beam end and the abutment, or at the hinged joint of the bridge. Their main purpose is to absorb the deformation of the bridge caused by factors such as temperature changes, concrete shrinkage, creep, and load. When installing bridge expansion joints, they need to be transported. The problem with the above technology is that in the existing technology, they are generally handled manually. If the workers are not careful during the transportation process, the bridge expansion joints may fall and be damaged, or even seriously injure the workers. Summary of the Invention
[0004] In view of the problems existing in the prior art, this utility model provides a transfer device for bridge expansion joint installation that can overcome or at least partially solve the above problems.
[0005] This utility model is implemented as follows: a transfer device for installing bridge expansion joints includes a base, a mounting frame, and a push handle. The left side of the push handle is fixedly installed on the right side of the base. The bottom of the mounting frame is fixedly installed on the top of the base. A fixing frame is installed on the right side of the top of the mounting frame. A moving mechanism is installed on the left side of the top of the base. A driving mechanism is installed on the left side of the top of the base. A moving frame is installed on the left side of the top of the mounting frame. A winding mechanism is installed on the right side of the top of the base. A positioning frame is installed on the left side of the mounting frame. A fixing strap is installed on the top of the mounting frame.
[0006] To improve the movement of the movable frame, preferably, the moving mechanism includes a lead screw, a threaded block, and a sprocket. The right side of the lead screw is movably connected to the interior of the mounting frame via a rotating shaft. The surface of the lead screw is movably mounted on the middle of the mounting frame. The surface of the threaded block is movably mounted on the inner wall of the mounting frame. The surface of the lead screw is movably mounted on the middle of the threaded block. The surface of the lead screw and the middle of the threaded block are connected by a thread. The front side of the bottom of the movable frame is fixedly mounted on the top of the threaded block. The sprocket can rotate, and the sprocket drives the lead screw to rotate. The lead screw drives the threaded block to move through the threaded connection, and the threaded block drives the movable frame to move.
[0007] To improve the rotation of sprocket one, preferably, the drive mechanism includes a servo motor, sprocket two, and a chain. The bottom of the servo motor is fixedly installed on the left side of the top of the base, and the right side of sprocket two is fixedly installed on the output end of the servo motor. Sprocket one and sprocket two are movably connected by a chain, and can be rotated by the servo motor. The servo motor drives sprocket two to rotate, and sprocket two drives sprocket one to rotate through the chain.
[0008] To facilitate the winding of the fixed tape, the winding mechanism preferably includes a drive motor, a support plate, a transmission rod, and a winding roller. The bottom of the support plate is fixedly installed on the right side of the top of the base. The rear side of the transmission rod is movably connected to the front side of the rear support plate via a rotating shaft. The surface of the transmission rod is movably installed on the middle of the front support plate. The middle of the winding roller is fixedly installed on the surface of the transmission rod. The bottom of the drive motor is fixedly installed on the right side of the top of the base. The output end of the drive motor is fixedly installed on the front side of the transmission rod. One end of the fixed tape is fixedly installed on the inner wall of the winding roller, and the other end of the fixed tape is movably installed on the surface of the positioning frame. The drive motor can rotate, which in turn drives the transmission rod to rotate, which in turn drives the winding roller to rotate, and the winding roller drives the fixed tape to wind up.
[0009] To improve the installation of the mobile frame, preferably, a slider is installed on the rear side of the bottom of the mobile frame, a sliding rod is installed in the middle of the slider, and the two sides of the sliding rod are fixedly installed on the inner wall of the mounting frame. The mobile frame can be installed on the slider, and the slider is installed on the sliding rod, thereby installing the mobile frame.
[0010] To facilitate the fixing of the strap, preferably, a pulley is installed on the right side of the mounting frame, and the surface of the fixing strap is movably mounted on the surface of the pulley. The strap can be mounted on the mounting frame via the pulley, and the fixing strap can be assisted by the slider, thereby reducing the friction between the fixing strap and the mounting frame.
[0011] To facilitate the movement of the base, preferably, the bottom of the base is equipped with casters, which can be used to mount the base and move it.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model, by setting up a base, mounting frame, push handle, fixing frame, moving mechanism, drive mechanism, winding mechanism, positioning frame, and fixing belt, first installs the bridge expansion joint on the mounting frame, then opens the drive mechanism, the servo motor rotates, the servo motor drives the second sprocket to rotate, the second sprocket drives the first sprocket to rotate, the first sprocket drives the lead screw to rotate, the lead screw drives the moving frame to move, and the moving frame fixes the bridge expansion joint. Then, the fixing belt is installed on the positioning frame, the winding mechanism is opened, the drive motor rotates, the drive motor drives the winding roller to rotate, the winding roller drives the fixing belt to wind up, and the fixing belt fixes the bridge expansion joint. The moving wheels transport the bridge expansion joint. This solves the problem in the prior art that, in general, the bridge expansion joint is handled manually, and if the operator is not careful during the handling process, it may fall and be damaged, or even seriously injure the operator. Attached Figure Description
[0014] Figure 1 is a schematic diagram of the overall three-dimensional structure provided in an embodiment of the present utility model;
[0015] Figure 2 is a three-dimensional structural diagram of the moving mechanism provided in an embodiment of the present utility model;
[0016] Figure 3 is a three-dimensional structural diagram of the drive mechanism provided in an embodiment of the present utility model;
[0017] Figure 4 is a three-dimensional structural diagram of the winding mechanism provided in an embodiment of this utility model.
[0018] In the diagram: 1. Base; 2. Mounting bracket; 3. Push handle; 4. Fixing bracket; 5. Moving mechanism; 501. Lead screw; 502. Threaded block; 503. Sprocket 1; 6. Drive mechanism; 601. Servo motor; 602. Sprocket 2; 603. Chain; 7. Winding mechanism; 701. Drive motor; 702. Support plate; 703. Transmission rod; 704. Winding roller; 8. Positioning bracket; 9. Fixing belt; 10. Slider; 11. Slide bar; 12. Pulley; 13. Moving wheel; 14. Moving frame. Detailed Implementation
[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0021] As shown in Figures 1 to 4, the present invention provides a transfer device for installing bridge expansion joints, including a base 1, a mounting frame 2, and a push handle 3. The left side of the push handle 3 is fixedly installed on the right side of the base 1. The bottom of the mounting frame 2 is fixedly installed on the top of the base 1. A fixing frame 4 is installed on the right side of the top of the mounting frame 2. A moving mechanism 5 is installed on the left side of the top of the base 1. A driving mechanism 6 is installed on the left side of the top of the base 1. A moving frame 14 is installed on the left side of the top of the mounting frame 2. A winding mechanism 7 is installed on the right side of the top of the base 1. A positioning frame 8 is installed on the left side of the mounting frame 2. A fixing strap 9 is installed on the top of the mounting frame 2. To improve the movement of the moving frame 14, the moving mechanism 5 includes a lead screw 501, a threaded block 502, and a sprocket 503. The right side of 501 is movably connected to the interior of the mounting bracket 2 via a rotating shaft. The surface of the lead screw 501 is movably mounted on the middle of the mounting bracket 2, and the surface of the threaded block 502 is movably mounted on the inner wall of the mounting bracket 2. The surface of the lead screw 501 is movably mounted on the middle of the threaded block 502, and the surface of the lead screw 501 and the middle of the threaded block 502 are connected by threads. The front side of the bottom of the movable frame 14 is fixedly mounted on the top of the threaded block 502 and can be rotated by a sprocket 1 503. The sprocket 1 503 drives the lead screw 501 to rotate, and the lead screw 501 drives the threaded block 502 to move through the threaded connection. The threaded block 502 drives the movable frame 14 to move. In order to improve the rotation of the sprocket 1 503, the drive mechanism 6 includes a servo motor 601, a sprocket 2 602, and a chain 60. 3. The bottom of the servo motor 601 is fixedly installed on the left side of the top of the base 1. The right side of the second sprocket 602 is fixedly installed on the output end of the servo motor 601. The first sprocket 503 and the second sprocket 602 are movably connected through the chain 603. The servo motor 601 can rotate, and the servo motor 601 drives the second sprocket 602 to rotate. The second sprocket 602 drives the first sprocket 503 to rotate through the chain 603. In order to facilitate the winding of the fixed belt 9, the winding mechanism 7 includes a drive motor 701, a support plate 702, a transmission rod 703 and a winding roller 704. The bottom of the support plate 702 is fixedly installed on the right side of the top of the base 1. The rear side of the transmission rod 703 is movably connected to the front side of the rear support plate 702 through a rotating shaft. The surface of the transmission rod 703 is movable. The take-up roller 704 is fixedly mounted on the surface of the transmission rod 703 at the center of the front support plate 702. The bottom of the drive motor 701 is fixedly mounted on the right side of the top of the base 1, and the output end of the drive motor 701 is fixedly mounted on the front side of the transmission rod 703. One end of the fixing belt 9 is fixedly mounted on the inner wall of the take-up roller 704, and the other end of the fixing belt 9 is movably mounted on the surface of the positioning frame 8. It can be rotated by the drive motor 701. The drive motor 701 drives the transmission rod 703 to rotate, and the transmission rod 703 drives the take-up roller 704 to rotate. The take-up roller 704 drives the fixing belt 9 to wind up. In order to improve the installation of the movable frame 14, a slider 10 is installed on the rear side of the bottom of the movable frame 14, and a slide rod 11 is installed in the middle of the slider 10.The slide bar 11 is fixedly mounted on both sides of the inner wall of the mounting frame 2. It can be mounted on the slider 10 via the movable frame 14, and the slider 10 is mounted on the slide bar 11, thereby mounting the movable frame 14. To facilitate the support of the fixing strap 9, a pulley 12 is mounted on the right side of the mounting frame 2. The surface of the fixing strap 9 is movably mounted on the surface of the pulley 12, allowing it to be mounted on the mounting frame 2 via the pulley 12. The slider 10 assists in supporting the fixing strap 9, thereby reducing friction between the fixing strap 9 and the mounting frame 2. To facilitate the movement of the base 1, a movable wheel 13 is mounted on the bottom of the base 1. The base 1 can be mounted via the movable wheel 13, which drives the base 1 to move.
[0022] The working principle of this utility model:
[0023] In use, first install the bridge expansion joint on the mounting frame 2, then turn on the drive mechanism 6. The servo motor 601 rotates, which drives the second sprocket 602 to rotate. The second sprocket 602 drives the first sprocket 503 to rotate via the chain 603. The first sprocket 503 drives the lead screw 501 to rotate. The lead screw 501 drives the threaded block 502 to move via the threaded connection. The threaded block 502 drives the moving frame 14 to move. The bridge expansion joint is fixed by the moving frame 14 and the fixed frame 4. Then, install the fixing belt 9 on the positioning frame 8. Turn on the winding mechanism 7. The drive motor 701 rotates, which drives the transmission rod 703 to rotate. The transmission rod 703 drives the winding roller 704 to rotate. The winding roller 704 winds up the fixing belt 9, thus fixing the bridge expansion joint. The bridge expansion joint is then transported by the moving wheel 13.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.
Claims
1. A transfer device for installing bridge expansion joints, comprising a base (1), a mounting frame (2), and a push handle (3), characterized in that: The left side of the push handle (3) is fixedly installed on the right side of the base (1), the bottom of the mounting frame (2) is fixedly installed on the top of the base (1), a fixing frame (4) is installed on the right side of the top of the mounting frame (2), a moving mechanism (5) is installed on the left side of the top of the base (1), a driving mechanism (6) is installed on the left side of the top of the base (1), a moving frame (14) is installed on the left side of the top of the mounting frame (2), a winding mechanism (7) is installed on the right side of the top of the base (1), a positioning frame (8) is installed on the left side of the mounting frame (2), and a fixing strap (9) is installed on the top of the mounting frame (2).
2. The transfer device for installing bridge expansion joints as described in claim 1, characterized in that: The moving mechanism (5) includes a lead screw (501), a threaded block (502), and a sprocket (503). The right side of the lead screw (501) is movably connected to the interior of the mounting frame (2) via a rotating shaft. The surface of the lead screw (501) is movably mounted on the middle part of the mounting frame (2). The surface of the threaded block (502) is movably mounted on the inner wall of the mounting frame (2). The surface of the lead screw (501) is movably mounted on the middle part of the threaded block (502). The surface of the lead screw (501) and the middle part of the threaded block (502) are connected by threads. The front side of the bottom of the moving frame (14) is fixedly mounted on the top of the threaded block (502).
3. The transfer device for installing bridge expansion joints as described in claim 2, characterized in that: The drive mechanism (6) includes a servo motor (601), a second sprocket (602), and a chain (603). The bottom of the servo motor (601) is fixedly installed on the left side of the top of the base (1), and the right side of the second sprocket (602) is fixedly installed on the output end of the servo motor (601). The first sprocket (503) and the second sprocket (602) are movably connected by the chain (603).
4. The transfer device for installing bridge expansion joints as described in claim 1, characterized in that: The winding mechanism (7) includes a drive motor (701), a support plate (702), a transmission rod (703), and a winding roller (704). The bottom of the support plate (702) is fixedly installed on the right side of the top of the base (1). The rear side of the transmission rod (703) is movably connected to the front side of the rear support plate (702) via a rotating shaft. The surface of the transmission rod (703) is movably installed on the middle part of the front support plate (702). The middle part of the winding roller (704) is fixedly installed on the surface of the transmission rod (703). The bottom of the drive motor (701) is fixedly installed on the right side of the top of the base (1). The output end of the drive motor (701) is fixedly installed on the front side of the transmission rod (703). One end of the fixing belt (9) is fixedly installed on the inner wall of the winding roller (704), and the other end of the fixing belt (9) is movably installed on the surface of the positioning frame (8).
5. The transfer device for installing bridge expansion joints as described in claim 1, characterized in that: A slider (10) is installed on the rear side of the bottom of the movable frame (14), and a slide rod (11) is installed in the middle of the slider (10). The two sides of the slide rod (11) are fixedly installed on the inner wall of the mounting frame (2).
6. The transfer device for installing bridge expansion joints as described in claim 1, characterized in that: A pulley (12) is installed on the right side of the mounting bracket (2), and the surface of the fixing belt (9) is movably mounted on the surface of the pulley (12).
7. The transfer device for installing bridge expansion joints as described in claim 1, characterized in that: The base (1) is equipped with casters (13) at its bottom.