Bridge pier column maintenance film coating device
Patent Information
- Application Number
- CN202522658379.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-16
AI Technical Summary
The existing process of covering bridge piers with membranes is inefficient, labor-intensive, and has defects in membrane quality, which affects the construction progress and quality.
A bridge pier maintenance and mulching device is designed, comprising a mulch roll, auxiliary rollers, and a track assembly. It adopts a ground assembly and hoisting operation logic, and completes the wrapping and sealing of the mulch on the ground through the track, slider, mulch roll, and auxiliary rollers, reducing high-altitude operations.
It significantly reduces labor intensity, improves construction efficiency and safety, reduces membrane quality defects, and ensures good adhesion between the membrane surface and the pier surface.
Smart Images

Figure CN224931395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to, but is not limited to, the field of bridge pier maintenance technology, and more specifically, to a bridge pier maintenance film covering device. Background Technology
[0002] After the bridge piers are poured, they need to be covered with plastic film for moisture retention and curing to protect the surface of the piers from external environmental erosion and damage. Covering with plastic can prevent moisture, dust and other impurities from entering the piers, thereby extending the service life of the piers.
[0003] Currently, the most common method is to use cranes to lift and manually wrap the membrane rolls. The cranes transport one or two workers to the top or middle of the pier, where they walk and pull the membrane while ground personnel assist by rotating the rolls. This method relies entirely on manual labor at height, which is not only inefficient and labor-intensive but also prone to membrane quality defects, affecting construction progress and maintenance quality. Therefore, a membrane covering device for bridge pier maintenance that eliminates the need for workers to perform prolonged high-altitude work is designed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a bridge pier maintenance and coating device.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model discloses a bridge pier maintenance film covering device, including a film covering roll suspension mechanism, which is sleeved on the outside of the bridge pier.
[0007] A film-coated roll assembly is disposed in the inner ring of the film-coated roll assembly suspension mechanism. The film-coated roll assembly includes a curing film roll and an auxiliary roller. Both the curing film roll and the auxiliary roller are attached to the outer wall of the bridge pier.
[0008] A film roll moving mechanism is assembled between the film roll suspension mechanism and the film roll. The film roll moving mechanism includes a track installed on the inner wall of the film roll suspension mechanism and a slider slidably mounted on the track.
[0009] Preferably, the film roll suspension mechanism includes a lifting ring sleeved on the outside of the bridge pier and a lifting lug welded to the top of the lifting ring.
[0010] Preferably, the film roll assembly includes one curing film roll and at least two auxiliary rollers, wherein the axis of the curing film roll, the axis of the auxiliary rollers, and the axis of the bridge pier are parallel to each other.
[0011] Preferably, both the upper and lower ends of the curing film roll and the auxiliary roller are fixed with rotating shafts, and the ends of the rotating shafts are rotatably connected to fixed seats, which are mounted on the film roll assembly moving mechanism.
[0012] Preferably, the upper and lower ends of the lifting ring are each provided with a track. The track includes a groove a for the slider to slide and a flange fixed to the bottom / top of the groove a. The inner side of the slider is provided with a groove b that matches the groove a. The slider moves circumferentially along the track.
[0013] Preferably, a connecting screw is provided between the lifting ring and the track, the connecting screw passing through the lifting ring and engaging with the flange thread.
[0014] Preferably, a fixing post is fixed inside the flange, and the end of the connecting screw is provided with a hole for the fixing post to be inserted, and the connecting screw is rotatably connected to the fixing post.
[0015] Preferably, the slider has a roller inside, one side of which is connected to a motor, and the slider has a rotating groove inside for the roller to rotate.
[0016] Preferably, the surface of the track is provided with a guide groove for the roller to roll, and the guide groove or the surface of the roller is provided with an anti-slip rubber ring.
[0017] Preferably, the sliders on the curing film roll and the auxiliary roller move circumferentially synchronously.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model adopts a ground-based assembly and one-time hoisting operation logic. The entire assembly and debugging of the track, slider, membrane roll and auxiliary roller are completed on the ground. Then, the whole assembly is hoisted to the top of the pier. Only one person needs to climb onto the temporary working platform to untie the membrane and fix it in place. The subsequent descent, winding and sealing are all completed on the ground. The uniform descent of the lifting ring and the continuous circumferential movement of the slider are synchronized. The membrane is spirally wrapped, eliminating the need for manual walking and pulling of the membrane. The labor intensity is significantly reduced, the work rhythm is more consistent, the risk of falling is fundamentally reduced, and the construction efficiency and safety are improved.
[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description
[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the coating device of this utility model;
[0025] Figure 3 This is a top view structural diagram of the coating device of this utility model;
[0026] Figure 4 This is a disassembled structural diagram of the coating device of this utility model;
[0027] Figure 5 This is a schematic diagram of the disassembled structure of the coated roll assembly of this utility model;
[0028] Figure 6 This is a cross-sectional structural diagram of the slider of this utility model;
[0029] Figure 7 This is a cross-sectional structural diagram of the lifting ring of this utility model;
[0030] Figure 8 This is an enlarged view of part A of the cross-sectional structural diagram of the lifting ring of this utility model;
[0031] In the diagram: 1. Suspension mechanism for the film-coated roll assembly; 11. Lifting ring; 12. Lifting lug; 13. Connecting screw; 2. Film-coated roll assembly; 21. Curing film roll; 22. Auxiliary roller; 23. Rotating shaft; 24. Fixed seat; 3. Moving mechanism for the film-coated roll assembly; 31. Track; 311. Slide a; 312. Flange; 313. Guide groove; 314. Fixed column; 32. Slider; 321. Slide b; 322. Roller; 323. Motor; 324. Rotating groove; 4. Bridge pier. Detailed Implementation
[0032] like Figure 1-8As shown, this utility model provides a bridge pier maintenance film covering device, including a film roll suspension mechanism 1, which is sleeved on the outside of the bridge pier 4;
[0033] The film-coating roll assembly 2 is located in the inner ring of the film-coating roll assembly suspension mechanism 1. The film-coating roll assembly 2 includes a curing film roll 21 and an auxiliary roller 22. Both the curing film roll 21 and the auxiliary roller 22 are attached to the outer wall of the bridge pier column 4.
[0034] The film roll moving mechanism 3 is assembled between the film roll suspension mechanism 1 and the film roll 2. The film roll moving mechanism 3 includes a track 31 installed on the inner wall of the film roll suspension mechanism 1 and a slider 32 slidably assembled on the track 31.
[0035] Furthermore, in this embodiment, the film roll suspension mechanism 1 includes a lifting ring 11 sleeved on the outside of the bridge pier column 4 and a lifting lug 12 welded to the top of the lifting ring 11. The lifting lug 12 is connected to the lifting rope of the lifting mechanism. The lifting lug 12 and the lifting ring 11 can be lifted and lowered by the lifting mechanism. The lifting mechanism can adopt a combination structure of screw lifting or winch + sling.
[0036] In addition, when the lifting mechanism is a screw jack, the lifting of the lifting ring 11 is more stable than the combination of winch and sling.
[0037] In this embodiment, the film roll assembly 2 includes a curing film roll 21 and at least two auxiliary rollers 22. The axis of the curing film roll 21, the axis of the auxiliary rollers 22 and the axis of the bridge pier 4 are parallel to each other, which is conducive to the stable winding of the curing film roll 21.
[0038] In this embodiment, both the upper and lower ends of the curing film roll 21 and the auxiliary roller 22 are fixed with rotating shafts 23. The ends of the rotating shafts 23 are rotatably connected to fixed seats 24. The fixed seats 24 are set on the film roll moving mechanism 3. The curing film roll 21 rotates on the fixed seats 24 mounted on the slider 32 through the rotating shafts 23 to perform the film covering work. The auxiliary roller 22 rotates synchronously on the fixed seats 24 through the rotating shafts 23. Through the cooperation of the curing film roll 21 and the auxiliary roller 22, the lifting ring 11 can be stably sleeved on the outer periphery of the bridge pier column 4 to avoid entanglement and tilting during the lifting process.
[0039] In this embodiment, a track 31 is provided at each of the upper and lower ends of the inner side of the lifting ring 11. The track 31 includes a groove a311 for sliding the slider 32 and a flange 312 fixed at the bottom / top of the groove a311. The inner side of the slider 32 is provided with a groove b321 that matches the groove a311. The slider 32 moves circumferentially along the track 31. The slider 32 slides on the groove a311 of the lifting ring 11 through the groove b321, and the circumferential movement covers the curing film on the curing film roll 21 onto the outer surface of the bridge pier column 4.
[0040] In this embodiment, a connecting screw 13 is provided between the lifting ring 11 and the track 31. The connecting screw 13 passes through the lifting ring 11 and is threadedly engaged with the flange 312. The track 31 is installed in the lifting ring 11 by the connecting screw 13. Through the connection with the flange 312, the movement of the slider 32 on the track 31 will not conflict with the fixation of the track 31. The upper slider 32 is located above the flange 312 on its track 31. Similarly, the lower slider 32 is located below the flange 312 on its track 31.
[0041] In this embodiment, a fixing post 314 is fixed inside the flange 312, and a hole for the fixing post 314 to be inserted is opened at the end of the connecting screw 13. The connecting screw 13 and the fixing post 314 are rotatably connected. The fixing post 314 and the connecting screw 13 are pre-positioned, and then the connecting screw 13 is screwed in to connect the track 31 and the lifting ring 11. Several connecting screws 13 are arranged around the lifting ring 11 to improve the stability of the track 31 installation.
[0042] In this embodiment, a roller 322 is provided inside the slider 32, and a motor 323 is connected to one side of the roller 322. The motor 323 is installed inside the slider 32, and a rotation groove 324 for the roller 322 to rotate is provided inside the slider 32. By connecting the output end of the motor 323 to the roller 322, the motor 323 controls the roller 322 to rotate in the rotation groove 324 in the slider 32.
[0043] In this embodiment, the surface of the track 31 is provided with a guide groove 313 for the roller 322 to roll. The movement of the slider 32 is achieved by the roller 322 rolling in the guide groove 313. The surface of the guide groove 313 or the roller 322 is provided with an anti-slip rubber ring to increase the friction between the roller 322 and the guide groove 313, prevent the roller 322 from rolling excessively, and improve the stability of the slider 32's movement.
[0044] It should be noted that the anti-slip rubber ring is a detachable vulcanized ring, which can be directly replaced when worn.
[0045] In this embodiment, the sliders 32 on the curing film roll 21 and the auxiliary roller 22 move circumferentially in sync. The curing film roll 21 and the auxiliary roller 22 slide synchronously on the track 31 through the sliders 32, and the distance between them remains equal. All sliders 32 must ensure that they start and stop at the same speed.
[0046] Specifically, the process of applying a membrane covering to bridge pier 4 is as follows:
[0047] On the ground, insert the upper and lower tracks 31 into the inner ring of the lifting ring 11 respectively, and tighten them evenly around the circumference with the connecting screws 13. Align the sliding groove b321 of the slider 32 with the sliding groove a311 of the track 31 one by one and push them in. Then, first install the auxiliary roller 22 fixing seat 24 on the inner side of the slider 32, and then install the curing film roll 21 fixing seat 24. Insert the rotating shaft 23 and manually turn it to confirm that the rotation is flexible. Pull out 0.8-1 m of the film head (completed on the ground) and fold it back to fix it. After it is placed on the column, untie it and use the lifting mechanism to lift the entire set of lifting rings 11 horizontally. Slowly put it on from the top of the column and keep it coaxial. Then start the motor 323 of the slider 32. The roller 322 moves forward and backward in the guide groove 313 to test. Confirm that there is no jamming or abnormal noise and stop the machine.
[0048] Workers climb onto the temporary work platform, pull out the membrane head, and temporarily wrap it around the top of the column. They then secure it with tape (the membrane head is first temporarily taped at three points on the top of the column with waterproof PVC tape, and then sealed with the same type of tape after the formal covering is completed). All motors 323 are restarted, and the slider 32 drives the curing membrane roll 21 and the auxiliary roller 22 to rotate clockwise around the column simultaneously. At the same time, the lifting mechanism descends at a uniform speed, and the lifting ring 11 spirally wraps the curing membrane onto the column surface as it descends. Workers visually inspect the covering condition from the ground. If wrinkles, uneven overlaps, or local air pockets are found in the membrane layer, the machine is immediately stopped and workers go up to the platform to manually adjust it to ensure that the membrane surface adheres well to the surface of the pier.
[0049] When the lifting ring 11 descends to the bottom of the column and the membrane layer covers the designed height, stop descending. The slider 32 continues to rotate 2-3 times before cutting off the membrane tail. Secure the end with waterproof tape. First, disconnect the power supply to all motors 323. Then, remove the curing membrane roll 21 and auxiliary roller 22 in sequence, pull out the slider 32, loosen the connecting screw 13, and lift out the track 31 and lifting ring 11 respectively. Finally, clean up the waste on site, fill in the column number, date, membrane batch and operator record, and regularly check the integrity of the membrane layer during the curing period.
[0050] It is worth noting that the control method in this application is to control the activation of the motor 323, lifting mechanism and other equipment through a remote control. The control circuit of the remote control can be implemented by a person skilled in the art through simple programming, which is common knowledge in the field. This application will not explain the control method and circuit connection in detail.
[0051] The components of this utility model, such as the lifting ring 11, lifting lug 12, curing film roll 21, auxiliary roller 22, track 31, slider 32, roller 322, and motor 323, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0052] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0053] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0055] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A bridge pier maintenance and covering device, characterized in that, Includes a film roll suspension mechanism (1), which is sleeved on the outside of the bridge pier (4); A film-coated roll assembly (2) is disposed in the inner ring of the film-coated roll assembly suspension mechanism (1). The film-coated roll assembly (2) includes a curing film roll (21) and an auxiliary roller (22). Both the curing film roll (21) and the auxiliary roller (22) are attached to the outer wall of the bridge pier (4). The film roll moving mechanism (3) is assembled between the film roll suspension mechanism (1) and the film roll (2). The film roll moving mechanism (3) includes a track (31) installed on the inner wall of the film roll suspension mechanism (1) and a slider (32) slidably mounted on the track (31).
2. The bridge pier maintenance and covering device according to claim 1, characterized in that, The film roll suspension mechanism (1) includes a lifting ring (11) sleeved on the outside of the bridge pier (4) and a lifting lug (12) welded to the top of the lifting ring (11).
3. The bridge pier maintenance and covering device according to claim 2, characterized in that, The film roll assembly (2) includes one curing film roll (21) and at least two auxiliary rollers (22), with the axis of the curing film roll (21), the axis of the auxiliary rollers (22) and the axis of the bridge pier (4) being parallel to each other.
4. The bridge pier maintenance and covering device according to claim 3, characterized in that, The upper and lower ends of the curing film roll (21) and the auxiliary roller (22) are both fixed with rotating shafts (23), and the ends of the rotating shafts (23) are rotatably connected with fixed seats (24), which are set on the film roll group moving mechanism (3).
5. A bridge pier maintenance covering device according to claim 4, characterized in that, The upper and lower ends of the inner ring (11) are each provided with a track (31). The track (31) includes a groove a (311) for the slider (32) to slide and a flange (312) fixed to the bottom / top of the groove a (311). The inner side of the slider (32) is provided with a groove b (321) that is adapted to the groove a (311). The slider (32) moves circumferentially along the track (31).
6. A bridge pier maintenance covering device according to claim 5, characterized in that, A connecting screw (13) is provided between the lifting ring (11) and the track (31). The connecting screw (13) passes through the lifting ring (11) and is threadedly engaged with the flange (312).
7. A bridge pier maintenance covering device according to claim 6, characterized in that, A fixing post (314) is fixed inside the flange (312), and the end of the connecting screw (13) is provided with a hole for the fixing post (314) to be inserted. The connecting screw (13) is rotatably connected to the fixing post (314).
8. A bridge pier maintenance and covering device according to claim 7, characterized in that, The slider (32) is provided with a roller (322) inside, and a motor (323) is connected to one side of the roller (322). The slider (32) has a rotating groove (324) inside for the roller (322) to rotate.
9. A bridge pier maintenance and covering device according to claim 8, characterized in that, The surface of the track (31) is provided with a guide groove (313) for the roller (322) to roll, and the surface of the guide groove (313) or the roller (322) is provided with an anti-slip rubber ring.
10. A bridge pier maintenance covering device according to claim 9, characterized in that, The slider (32) on the curing film roll (21) and the auxiliary roller (22) moves circumferentially in sync.
