Bridge expansion joint liquid waterstop construction device
Through the automated design of the liquid water stop construction device of the bridge expansion joint, efficient and low-cost filling of the bridge expansion joint is achieved, solving the problems of easy aging and poor sealing of traditional materials, and ensuring the sealing and service life of the bridge.
Patent Information
- Application Number
- CN202421848054.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The filling materials at the expansion joints of existing bridges are costly and the filling procedures are complex. Traditional materials are prone to aging, deformable, and poor sealing, causing moisture to penetrate into the bridge and causing steel bar corrosion and concrete deterioration.
The bridge expansion joint liquid water stop construction device is adopted to achieve automatic filling through the cooperation of the roller and the transmission shaft. The design of the lifting plate and push rod ensures accurate push of the liquid water stop. The water stop is compacted by a combination of sleeve rod and a pressing roller to ensure sealing and adaptability.
It greatly saves labor costs, improves construction efficiency, ensures the accuracy and uniformity of water stop filling, extends the service life of the bridge, reduces material costs and reduces waste, improves sealing and adaptability, and protects the internal structure of the bridge.
Smart Images
Figure CN223202193U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge expansion joints, in particular to a construction device for a liquid waterstop strip for a bridge expansion joint. Background Art
[0002] In bridge engineering, expansion joints are an important component of bridge structures. They allow bridges to undergo slight expansion and contraction deformations under the influence of temperature changes, loads, and vehicle traffic, thereby protecting the integrity and safety of the bridge structure. However, cracks often appear in expansion joints due to temperature changes, moisture penetration, and repeated vehicle loads, causing moisture to penetrate into the interior of the bridge, which in turn causes serious problems such as steel corrosion and concrete deterioration, shortening the service life of the bridge.
[0003] In order to effectively solve this problem, traditional bridge expansion joint water-stopping measures mostly use materials such as rubber waterstops or metal waterstops. However, these materials often have disadvantages such as easy aging, easy deformation, and poor sealing during use. In addition, when filling the expansion joints, the material and equipment costs are high and manpower is wasted. Summary of the Invention
[0004] The purpose of the utility model is to solve the problems of high filling material cost and complicated filling procedure in the prior art, and to propose a construction device for a liquid waterstop strip of a bridge expansion joint.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A construction device for a liquid waterstop strip in a bridge expansion joint includes a fuselage and also includes: a connecting plate fixedly connected to the fuselage, wherein a transmission shaft is rotatably installed in the connecting plate, a roller is fixedly connected to the transmission shaft, a driving part is connected to the transmission shaft, a lifting plate is slidably installed in the fuselage, a pusher head is provided on the lifting plate, and the lifting plate cooperates with the driving part. When the roller rotates, the lifting plate is driven to slide in the fuselage through the driving part, and a glue barrel is installed in the fuselage, and the pusher head is slidably installed inside the glue barrel.
[0007] Preferably, the driving part includes a cooperating rod fixedly connected to the lifting plate, a screw rod is meshedly installed in the cooperating rod, the screw rod passes through the fuselage, a linkage bevel gear is fixedly connected to the screw rod, an active bevel gear is fixedly connected to the transmission shaft, and the active bevel gear is meshed with the linkage bevel gear.
[0008] In order to push the liquid waterstop inside the rubber barrel, preferably, a push rod is fixedly connected to the lifting plate, and the push head is fixedly connected to the push rod.
[0009] In order to introduce the liquid waterstop into the expansion joint, further, a fixing ring is fixedly connected to the fuselage, the glue barrel is fixedly installed in the fixing ring, the output end of the glue barrel is fixedly connected to a glue guide tube, the output end of the glue guide tube is fixedly connected to a glue outlet head, and a mounting bracket is fixedly connected to the fuselage, and the mounting bracket fixes the glue guide tube and the glue outlet head.
[0010] In order to protect the internal driving part, further, a protection box is fixedly connected to the fuselage, and the driving part is arranged in the protection box.
[0011] In order to flatten the lining strip, further, a sleeve rod is fixedly connected to the machine body, a piston plate is movably installed in the sleeve rod, and a pressure roller is rotatably installed on the piston plate.
[0012] In order to better fit the pressure roller, further, a slide is fixedly connected to the piston plate, and the slide is slidably installed inside the sleeve rod. A support spring is fixedly connected inside the sleeve rod, and the free end of the support spring is fixedly connected to the slide.
[0013] In order to facilitate operation and pushing, further, a handle is fixedly connected to the body.
[0014] Compared with the prior art, the present invention provides a bridge expansion joint liquid waterstop construction device, which has the following beneficial effects:
[0015] 1. The liquid waterstop for the bridge expansion joint, through the cooperation of the roller and the drive shaft, can automatically drive the filling process of the liquid waterstop when traveling over the bridge expansion joint, greatly saving labor costs and improving construction efficiency. At the same time, this automated design reduces the possibility of human operational errors and ensures the accuracy and uniformity of the waterstop filling.
[0016] 2. The liquid waterstop for the expansion joint of the bridge has better sealing and adaptability than traditional rubber waterstop or metal waterstop. It does not require addition or heating and is suitable for direct exposure. It will not be damaged by sunlight, rain, snow, ultraviolet rays, ozone, etc. It has strong corrosion resistance and a wide pH tolerance range. The product cures at room temperature and forms an elastic colloid after curing. In the temperature range of -60℃-200℃, it does not become brittle or crack at low temperatures and does not flow or dissolve at high temperatures, and maintains good elasticity. After curing, it forms a soft elastic colloid with strong adhesion to the substrate. It can moderately expand and contract with the expansion joint steel and its deformation performance is not affected, thereby protecting the internal structure of the bridge from erosion and extending the service life of the bridge. In addition, the material cost of the liquid waterstop is relatively low, and the filling process is more flexible, reducing material waste.
[0017] 3. The liquid waterstop for the bridge expansion joint can be pushed into the expansion joint accurately and stably through the design of the lifting plate and the push rod. The sliding of the push head inside the rubber barrel ensures that the waterstop can flow out evenly and continuously, avoiding the problem of poor filling effect caused by uneven flow. At the same time, this design also facilitates the precise control of the amount of waterstop and improves construction accuracy.
[0018] 4. The liquid waterstop of the bridge expansion joint realizes the compaction and flattening of the filled waterstop through the combination of sleeve rod, piston plate and pressure roller. The pressure roller can move up and down as the piston plate slides in the sleeve rod to compact the waterstop filled in the expansion joint, ensuring a close fit between the waterstop and the expansion joint. The addition of the support spring enables the pressure roller to better adapt to the changes in expansion joints of different heights, thereby improving the uniformity and effect of compaction.
[0019] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. When filling the filling seam, the utility model is simple and convenient to operate, saves manpower, has low material cost and better maintenance effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall structure of a bridge expansion joint liquid waterstop construction device proposed by the utility model.
[0021] Figure 2 This is a schematic diagram of the internal structure of a protective box for a bridge expansion joint liquid waterstop construction device proposed by the utility model.
[0022] Figure 3 This is a schematic diagram of the internal structure of a bridge expansion joint liquid waterstop construction device proposed by the utility model.
[0023] Figure 4 This is a schematic diagram of the internal structure of a rubber barrel of a bridge expansion joint liquid waterstop construction device proposed by the utility model.
[0024] Figure 5 This is a schematic diagram of the internal structure of a sleeve rod of a bridge expansion joint liquid waterstop construction device proposed by the utility model.
[0025] In the figure: 1. Body; 11. Connecting plate; 12. Handle; 13. Fixing ring; 14. Protective box; 2. Roller; 21. Transmission shaft; 22. Active bevel gear; 23. Linkage bevel gear; 24. Screw; 25. Matching rod; 26. Lifting plate; 27. Push rod; 28. Push head; 3. Sleeve rod; 31. Piston plate; 32. Pressure roller; 33. Slide plate; 34. Support spring; 4. Glue barrel; 41. Glue guide tube; 42. Mounting bracket; 43. Glue outlet head. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example
[0028] Reference Figure 1-Figure 3 , a bridge expansion joint liquid waterstop construction device includes a body 1, the body 1 is fixedly connected to a handle 12, which is convenient for an operator to hold and move the entire device, and also includes: a connecting plate 11 fixedly connected to the body 1, wherein a transmission shaft 21 is rotatably installed in the connecting plate 11, a roller 2 is fixedly connected to the transmission shaft 21, and a driving unit is connected to the transmission shaft 21, a lifting plate 26 is slidably installed in the body 1, and a pushing head 28 is provided on the lifting plate 26, and the lifting plate 26 cooperates with the driving unit. When the roller 2 rotates, the lifting plate 26 is driven to slide in the body 1 by the driving unit. When the roller 2 rolls in the expansion joint, the driving unit can convert the rotational motion of the roller 2 into a linear motion of the lifting plate 26, a glue barrel 4 is installed in the body 1, and the pushing head 28 is slidably installed inside the glue barrel 4. When the lifting plate 26 slides up and down under the action of the driving unit, the pushing head 28 will move accordingly in the glue barrel 4, thereby pushing the liquid waterstop out of the glue barrel 4 and filling it into the bridge expansion joint.
[0029] Reference Figure 2-Figure 4The driving part includes a matching rod 25 fixedly connected to the lifting plate 26, and a screw rod 24 is installed in the matching rod 25 in meshing manner. The matching rod 25 serves as a connecting piece between the lifting plate 26 and the screw rod 24, and the screw rod 24 is installed in the matching rod 25 in meshing manner. This meshing mode enables the rotation of the screw rod 24 to be converted into a linear motion of the matching rod 25. The screw rod 24 runs through the fuselage 1, and a linkage bevel gear 23 is fixedly connected to the screw rod 24. The active bevel gear 22 is fixedly connected to the linkage bevel gear 23. When the transmission shaft 21 rotates, the linkage bevel gear 23 is driven to rotate through the meshing relationship. Since the linkage bevel gear 23 is fixedly connected to the screw rod 24, the screw rod 24 will also rotate accordingly. A push rod 27 is fixedly connected to the lifting plate 26, and a push head 28 is fixedly connected to the push rod 27. When the lifting plate 26 slides up and down under the drive of the screw rod 24, the push rod 27 and the push head 28 will also move accordingly. The push head 28 is used to push the water-stop material in the glue barrel 4. A fixing ring 13 is fixedly connected to the fuselage 1. The glue barrel 4 is fixedly installed in the fixing ring 13. The output end of the glue barrel 4 is fixedly connected to a glue guide tube 41. The output end of the glue guide tube 41 is fixedly connected to a glue discharge head 43. The glue guide tube 41 is used to guide the water-stop material from the glue barrel 4 to the glue discharge head 43. A mounting bracket 42 is fixedly connected to the fuselage 1. The mounting bracket 42 fixes the glue guide tube 41 and the glue discharge head 43. A protective box 14 is fixedly connected to the fuselage 1. The driving part is arranged in the protective box 14 to protect the driving part from interference and damage from the external environment.
[0030] Reference Figure 1 、 Figure 5 A sleeve rod 3 is fixedly connected to the fuselage 1, and a piston plate 31 is movably installed in the sleeve rod 3. A pressure roller 32 is rotatably installed on the piston plate 31 for rolling in the expansion joint of the bridge to provide additional driving force and adapt to the uneven gap surface, and at the same time flatten the lining strip placed in the expansion joint. A slide plate 33 is fixedly connected to the piston plate 31, and a slide plate 33 is fixedly connected to the piston plate 31. The slide plate 33 is slidably installed inside the sleeve rod 3. The slide plate 33 makes the movement of the piston plate 31 in the sleeve rod 3 more stable and controllable. A support spring 34 is fixedly connected inside the sleeve rod 3, and the free end of the support spring 34 is fixedly connected to the slide plate 33. When the piston plate 31 is subjected to external pressure, the support spring 34 will be compressed to adapt to expansion joints of different depths.
[0031] In the present invention, before filling the expansion joint of the bridge with the liquid waterstop, it is first necessary to clean the joint and remove the garbage, sand, dust, etc. in the joint. Secondly, use an electric angle grinder with a wire brush to remove rust, paint, dust, etc. on both sides of the steel section until fresh steel section is exposed. Then, the lining strip is placed flat into the expansion joint and clamped into the slot reserved for the steel section. When the preparation work is completed, the operator takes the device to the target position and firmly holds the fuselage 1 with the handle 12. Then, the roller 2 is placed at one end of the expansion joint and the entire device is slowly pushed forward to roll the roller 2 along the ground on both sides of the expansion joint.
[0032] As the roller 2 rolls, the transmission shaft 21 also rotates. Since the driving bevel gear 22 is fixed to the transmission shaft 21 and meshes with the linkage bevel gear 23, this rotational force is transmitted to the linkage bevel gear 23, which in turn drives the screw rod 24 to start rotating. The meshing design between the screw rod 24 and the matching rod 25 allows the rotation of the screw rod 24 to be converted into the linear motion of the matching rod 25 and the lifting plate 26. As the lifting plate 26 slides up and down in the fuselage 1, the push rod 27 and the push head 28 are also driven to move inside the rubber barrel 4. The forward movement of the push head 28 squeezes the liquid waterstop in the rubber barrel 4, causing it to flow to the rubber outlet head 43 through the rubber guide tube 41 and eventually fill the expansion joint of the bridge, achieving effective sealing of the gap.
[0033] At the same time, the piston plate 31 and the pressure roller 32 in the sleeve rod 3 also play an important role. The pressure roller 32 rolls close to the surface of the expansion joint, which not only provides additional driving force for the entire device, but also helps to flatten the lining strips placed inside, ensuring that the water stop can fit more tightly on the gap. The piston plate 31 slides in the sleeve rod 3 through the slide plate 33 and is buffered by the support spring 34 to adapt to expansion joints of different depths and maintain the stability of the device operation.
[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A bridge expansion joint liquid waterstop construction device, comprising a body (1), characterized in that: Also includes: A connecting plate (11) fixedly connected to the fuselage (1), A transmission shaft (21) is rotatably mounted in the connecting plate (11), a roller (2) is fixedly connected to the transmission shaft (21), and a driving unit is connected to the transmission shaft (21); A lifting plate (26) is slidably mounted in the machine body (1), wherein a push head (28) is provided on the lifting plate (26), and the lifting plate (26) cooperates with a driving part, and when the roller (2) rotates, the driving part drives the lifting plate (26) to slide in the machine body (1); The glue barrel (4) is installed in the machine body (1), and the push head (28) is slidably installed inside the glue barrel (4).
2. A bridge expansion joint liquid waterstop construction device according to claim 1, characterized in that: The driving part comprises a matching rod (25) fixedly connected to the lifting plate (26); a screw rod (24) is meshedly installed in the matching rod (25); the screw rod (24) passes through the fuselage (1); a linkage bevel gear (23) is fixedly connected to the screw rod (24); an active bevel gear (22) is fixedly connected to the transmission shaft (21); the active bevel gear (22) is meshed with the linkage bevel gear (23).
3. A bridge expansion joint liquid waterstop construction device according to claim 2, characterized in that: A push rod (27) is fixedly connected to the lifting plate (26), and the push head (28) is fixedly connected to the push rod (27).
4. A bridge expansion joint liquid waterstop construction device according to claim 3, characterized in that: A fixing ring (13) is fixedly connected to the body (1), the glue barrel (4) is fixedly installed in the fixing ring (13), the output end of the glue barrel (4) is fixedly connected to a glue guide tube (41), the output end of the glue guide tube (41) is fixedly connected to a glue outlet head (43), and a mounting frame (42) is fixedly connected to the body (1), and the mounting frame (42) fixes the glue guide tube (41) and the glue outlet head (43).
5. A bridge expansion joint liquid waterstop construction device according to claim 2, characterized in that: A protective box (14) is fixedly connected to the body (1), and the driving unit is arranged in the protective box (14).
6. A bridge expansion joint liquid waterstop construction device according to claim 1, characterized in that: A sleeve rod (3) is fixedly connected to the machine body (1), a piston plate (31) is movably mounted in the sleeve rod (3), and a pressure roller (32) is rotatably mounted on the piston plate (31).
7. A bridge expansion joint liquid waterstop construction device according to claim 6, characterized in that: A slide plate (33) is fixedly connected to the piston plate (31), and the slide plate (33) is slidably mounted inside the sleeve rod (3). A support spring (34) is fixedly connected inside the sleeve rod (3), and the free end of the support spring (34) is fixedly connected to the slide plate (33).
8. The bridge expansion joint liquid waterstop construction device according to claim 1 is characterized in that: A handle (12) is fixedly connected to the body (1).