Conveying mechanism of prefabricated bridge
By designing a conveying mechanism that includes a base, positioning frame, guide rail, slide, and drive assembly, the problem of easy damage and falling during the conveying of prefabricated bridge components was solved, achieving efficient and reliable conveying and convenient equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州普凯盛钢构科技有限公司
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-14
AI Technical Summary
Precast bridge components are easily damaged or fall off during the conveying process, resulting in low conveying efficiency and affecting assembly accuracy and construction progress.
A conveying mechanism including a base, positioning frame, guide rail, slide, fixed frame and drive assembly is designed. The slide and guide rail are slidably connected, and the drive assembly drives the carrier assembly to move, so as to achieve efficient conveying. The carrier plate with quick-release design is easy to replace and clean.
It improves the conveying efficiency of prefabricated bridge components, avoids collisions and falls, reduces equipment maintenance costs and downtime, and provides efficient and reliable support.
Smart Images

Figure CN224118231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge engineering technology, and in particular to a conveying mechanism for prefabricated bridges. Background Technology
[0002] Precast bridges refer to a bridge construction method in which the main components of a bridge (such as piers, beams, and deck panels) are prefabricated according to design requirements in a factory or prefabrication site outside the construction site, and then transported to the actual construction site for assembly. The use of precast bridge components is becoming increasingly widespread in bridge engineering. However, precast bridge components are generally small in size and heavy in weight, posing numerous challenges to their transport and installation.
[0003] Currently, precast bridge components are mainly transported using transportation equipment or manual transfer. During this process, parts are easily damaged or fall off due to collisions. At the same time, the transfer efficiency is very low, which can adversely affect the assembly accuracy and construction progress of precast bridges. Utility Model Content
[0004] The purpose of this invention is to provide a conveying mechanism for prefabricated bridges, which solves the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a conveying mechanism for a precast bridge, comprising a base, positioning frames symmetrically connected to the top of the base, guide rails fixedly connected to the outer walls of the two positioning frames on their adjacent sides, slide blocks slidably connected to the outer walls of the guide rails, a fixed frame fixedly connected to the outer walls of the slide blocks, a load-bearing component provided on the fixed frame, and a drive component for transmitting the movement of the load-bearing component provided between the two positioning frames.
[0006] Preferably, the bearing component includes a card holder, the outer wall of which is slidably connected to the inner wall of the fixing frame, the side wall of the card holder is symmetrically provided with receiving grooves, the inner wall of the receiving groove is fixedly connected with a compression spring, the end of the compression spring away from the receiving groove is fixedly connected with a locking block, the outer wall of the locking block is slidably connected to the inner wall of the receiving groove, the outer wall of the fixing frame is symmetrically provided with locking holes, the locking block engages with the locking holes, and the top of the card holder is fixedly connected with a bearing plate.
[0007] Preferably, a second connecting seat and a first connecting seat are fixedly connected between the two positioning frames, and the second connecting seat and the first connecting seat are located at the left and right ends of the positioning frame, respectively.
[0008] Preferably, the driving assembly includes a stepper motor and a belt. The stepper motor is fixedly connected to the bottom of the first connecting seat. A first fixing frame is fixedly connected to the top of the first connecting seat. A drive wheel is rotatably connected between the first fixing frame and the first connecting seat. The output end of the stepper motor is connected to the drive wheel. A second fixing frame is fixedly connected to the top of the second connecting seat. A driven wheel is rotatably connected between the second fixing frame and the second connecting seat. The driven wheel is connected to the drive wheel via a belt.
[0009] Preferably, the outer wall of the fixed frame is recessed inward to form several slots, and the outer wall of the belt is fixedly connected with several drive bars, each of which engages with a corresponding slot.
[0010] Preferably, a rubber pad is fixedly connected to the top of the slide.
[0011] Compared with related technologies, the conveying mechanism for prefabricated bridges provided by this utility model has the following beneficial effects:
[0012] 1. This utility model provides a conveying mechanism for prefabricated bridges. In use, the prefabricated bridge assembly parts are placed on the bearing component, and the drive component drives the slide to reciprocate on the guide rail, so that the bearing component can achieve efficient conveying. The sliding connection between the slide and the guide rail ensures a smooth conveying path and avoids collisions or falling of the parts during the conveying process, thus significantly improving the conveying efficiency of the parts.
[0013] 2. This utility model provides a conveying mechanism for precast bridges. The quick-release design of the bearing plate is particularly convenient. Pressing the locking block can quickly release the lock, which facilitates the replacement and cleaning of the bearing plate, greatly reducing equipment maintenance costs and downtime, and providing efficient and reliable support for precast bridge assembly operations. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the positioning frame structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the guide rail structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the card slot structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the slide block structure of this utility model;
[0019] Figure 6 This is a schematic diagram of the card holder structure of this utility model;
[0020] Figure 7 For the present utility model Figure 3 Enlarged view of point A in the middle.
[0021] In the diagram: 1. Base; 2. Positioning frame; 3. Connecting seat one; 4. Stepper motor; 5. Fixing frame one; 6. Drive wheel; 7. Connecting seat two; 8. Fixing frame two; 9. Driven wheel; 10. Belt; 11. Drive bar; 12. Guide rail; 13. Slide; 14. Fixing frame; 15. Slot; 16. Slot seat; 17. Bearing plate; 18. Rubber pad; 19. Receiving groove; 20. Compression spring; 21. Locking block; 22. Locking hole. Detailed Implementation
[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example:
[0024] Please see Figures 1-7 This utility model provides a technical solution: a conveying mechanism for a precast bridge, including a base 1, with positioning frames 2 symmetrically connected to the top of the base 1, and guide rails 12 fixedly connected to the outer walls of the two positioning frames 2 on their adjacent sides, with slide blocks 13 slidably connected to the outer walls of the guide rails 12, and a fixed frame 14 fixedly connected to the outer walls of the slide blocks 13, with a bearing component provided on the fixed frame 14, and a driving component for transmitting the movement of the bearing component provided between the two positioning frames 2;
[0025] The supporting component includes a card holder 16, the outer wall of which is slidably connected to the inner wall of the fixing frame 14. Symmetrically arranged receiving grooves 19 are provided on the side walls of the card holder 16. A compression spring 20 is fixedly connected to the inner wall of the receiving groove 19. A locking block 21 is fixedly connected to the end of the compression spring 20 away from the receiving groove 19. The outer wall of the locking block 21 is slidably connected to the inner wall of the receiving groove 19. Symmetrically arranged locking holes 22 are provided on the outer wall of the fixing frame 14, and the locking block 21 engages with the locking holes 22. A supporting plate 17 is fixedly connected to the top of the card holder 16. The card holder 16 is inserted into the fixing frame 14. In the process, when the bearing plate 17 on the card holder 16 is in contact with the surface of the rubber pad 18, the card block 21 on the side wall of the card holder 16 is aligned with the card hole 22. At this time, the compression spring 20 is in a compressed state, pushing the tube card block 21 to engage with the card hole 22 on the outer wall of the fixed frame 14, thereby fixing the card holder 16 firmly in the fixed frame 14. The bearing plate 17 is used to support the assembly parts of the precast bridge. In use, the drive component will drive the bearing component to reciprocate on the positioning frame 2 to realize the transmission of the precast bridge assembly parts. The operation is very simple.
[0026] Connecting seat 2 7 and connecting seat 1 3 are fixedly connected between the two positioning frames 2, and connecting seat 2 7 and connecting seat 1 3 are located at the left and right ends of the positioning frame 2 respectively;
[0027] The drive assembly includes a stepper motor 4 and a belt 10. The stepper motor 4 is fixedly connected to the bottom of the connecting seat 1 3. The top of the connecting seat 1 3 is fixedly connected to a fixing frame 1 5. A drive wheel 6 is rotatably connected between the fixing frame 1 5 and the connecting seat 1 3. The output end of the stepper motor 4 is connected to the drive wheel 6. The top of the connecting seat 2 7 is fixedly connected to a fixing frame 2 8. A driven wheel 9 is rotatably connected between the fixing frame 2 8 and the connecting seat 2 7. The driven wheel 9 is connected to the drive wheel 6 via the belt 10.
[0028] The outer wall of the fixed frame 14 is recessed inward to form several slots 15, and several drive bars 11 are fixedly connected to the outer wall of the belt 10. Each drive bar 11 is engaged with the corresponding slot 15.
[0029] A rubber pad 18 is fixedly connected to the top of the slide 13. When installing the load-bearing components, the rubber pad 18 acts as a buffer and support for the load-bearing plate 17, reducing its installation and use wear.
[0030] In this implementation scheme, before operation, the tension of the belt 10 is adjusted to ensure transmission stability without being too tight and affecting equipment operation. Several slots 15 are formed inwardly recessed on the outer wall of the fixed frame 14. Several drive bars 11 are fixedly connected to the outer wall of the driven wheel 9, ensuring that each drive bar 11 accurately engages with its corresponding slot 15. After completing the above installation, the prefabricated bridge assembly components are placed on the bearing plate 17. Then, the stepper motor 4 is started to drive the drive wheel 6 to rotate. The drive wheel 6 drives the driven wheel 9 to rotate via the belt 10. The drive bars 11 on the outer side of the belt 10 are connected to the outer wall of the fixed frame 14. The wall's slot 15 engages, thereby driving the fixed frame 14, slide 13, and bearing assembly to move along the guide rail 12, realizing the transmission of prefabricated bridge assembly parts. When the bearing assembly transmits the prefabricated bridge assembly parts to the predetermined position, the stepper motor 4 stops running. At this time, the prefabricated bridge assembly parts can be unloaded from the bearing plate 17 manually or mechanically. If the bearing plate 17 needs to be replaced or cleaned, manually press the locking block 21 to make it retract into the receiving groove 19 to overcome the elastic force of the compression spring 20, release the locking block 21 from the locking hole 22, and the bearing assembly can be removed for subsequent maintenance of the bearing plate 17.
[0031] Working principle: Before operation, insert the card holder 16 into the fixed frame 14. When the bearing plate 17 on the card holder 16 is in contact with the surface of the rubber pad 18, the locking block 21 on the side wall of the card holder 16 is aligned with the locking hole 22. At this time, the compression spring 20 is in a compressed state, pushing the tube locking block 21 to engage with the locking hole 22 on the outer wall of the fixed frame 14, thereby firmly fixing the card holder 16 in the fixed frame 14. Then, adjust the tension of the belt 10 to ensure the stability of the transmission without being too tight and affecting the operation of the equipment. Several locking grooves 15 are formed by inward recesses on the outer wall of the fixed frame 14, which are fixedly connected to the outer wall of the driven wheel 9. Several drive bars 11 are installed to ensure that each drive bar 11 can be accurately engaged with the corresponding slot 15. After the above installation is completed, the prefabricated bridge assembly parts are placed on the support plate 17. Then, the stepper motor 4 is started to drive the drive wheel 6 to rotate. The drive wheel 6 drives the driven wheel 9 to rotate through the belt 10. The drive bar 11 on the outside of the belt 10 is engaged with the slot 15 on the outer wall of the fixed frame 14, thereby driving the fixed frame 14, the slide 13 and the support assembly to move along the guide rail 12. The drive assembly is used to drive the support assembly to reciprocate on the positioning frame 2, realizing the transmission of the prefabricated bridge assembly parts. The operation is very simple.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A transport mechanism for prefabricated bridges, comprising a base (1), characterized in that: The base (1) is symmetrically connected to the top of the positioning frame (2). The outer walls of the two positioning frames (2) that are close to each other are fixedly connected to the guide rail (12). The outer wall of the guide rail (12) is slidably connected to the slide (13). The outer wall of the slide (13) is fixedly connected to the fixed frame (14). The fixed frame (14) is provided with a bearing component. A drive component for transmitting the movement of the bearing component is provided between the two positioning frames (2).
2. The conveying mechanism for a precast bridge according to claim 1, characterized in that: The supporting component includes a card holder (16), the outer wall of the card holder (16) is slidably connected to the inner wall of the fixed frame (14), the side wall of the card holder (16) is symmetrically provided with receiving grooves (19), the inner wall of the receiving groove (19) is fixedly connected with a compression spring (20), the end of the compression spring (20) away from the receiving groove (19) is fixedly connected with a card block (21), the outer wall of the card block (21) is slidably connected to the inner wall of the receiving groove (19), the outer wall of the fixed frame (14) is symmetrically provided with card holes (22), the card block (21) is engaged with the card hole (22), and the top of the card holder (16) is fixedly connected with a supporting plate (17).
3. The conveying mechanism for a precast bridge according to claim 2, characterized in that: A connecting seat 2 (7) and a connecting seat 1 (3) are fixedly connected between the two positioning frames (2), and the connecting seat 2 (7) and the connecting seat 1 (3) are located at the left and right ends of the positioning frame (2) respectively.
4. The conveying mechanism for a precast bridge according to claim 3, characterized in that: The drive assembly includes a stepper motor (4) and a belt (10). The stepper motor (4) is fixedly connected to the bottom of the first connecting seat (3). The top of the first connecting seat (3) is fixedly connected to a first fixing frame (5). A drive wheel (6) is rotatably connected between the first fixing frame (5) and the first connecting seat (3). The output end of the stepper motor (4) is connected to the drive wheel (6). The top of the second connecting seat (7) is fixedly connected to a second fixing frame (8). A driven wheel (9) is rotatably connected between the second fixing frame (8) and the second connecting seat (7). The driven wheel (9) is connected to the drive wheel (6) via the belt (10).
5. The conveying mechanism for a precast bridge according to claim 4, characterized in that: The outer wall of the fixed frame (14) is recessed inward to form several slots (15), and the outer wall of the belt (10) is fixedly connected with several drive bars (11), each drive bar (11) engaging with the corresponding slot (15).
6. The conveying mechanism for a precast bridge according to claim 1, characterized in that: A rubber pad (18) is fixedly connected to the top of the slide (13).