Bridge joint filling device
By designing components such as retractable nozzles, heating wires, and protective covers, the problem of insufficient curing of filler caused by residual moisture in the gaps of bridge joint filling devices has been solved, resulting in better filling effect and nozzle stability, and improving the performance of bridge joint filling devices.
Patent Information
- Application Number
- CN202520434504.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing bridge joint sealing devices suffer from poor curing of the filler material and insufficient bonding between the filler and the joint after high-pressure water jet washing.
A bridge joint filling device was designed, comprising a retractable nozzle, a heating wire, a protective cover, an electric actuator, and a telescopic grout delivery pipe. The nozzle blows away moisture from the joint, the heating wire evaporates the moisture, the protective cover protects the nozzle, and the electric actuator and telescopic grout delivery pipe ensure that the filler is fully injected and cured.
It effectively reduces moisture residue in gaps, improves the curing effect of the filler, ensures full bonding between the filler and the gaps, prevents nozzle clogging and deformation, and improves the quality of grouting.
Smart Images

Figure CN223837873U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bridge maintenance auxiliary devices, specifically a bridge joint filling device. Background Technology
[0002] Bridge joint sealant is a device that uses building materials to fill cracks in bridge pavement. Its main function is to reduce the entry of rainwater, dust and other impurities into the cracks and improve the overall strength of the bridge deck.
[0003] Existing bridge joint filling devices involve mixing building materials such as concrete or asphalt and then injecting them into the gaps in the bridge. After the concrete or other building materials solidify, the top of the filling part is then adjusted to complete the filling of the bridge joints.
[0004] In the existing joint filling process, most methods use high-pressure water guns to rinse the gaps before injecting the filler into them. However, the residual moisture inside the gaps during this process can lead to poor curing of the filler and the bridge joints.
[0005] Therefore, this utility model provides a bridge joint filling device. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A bridge joint filling device of this utility model includes a storage tank; a base is fixedly connected to the bottom of the storage tank; an air pump is fixedly connected to the top of the base; a first electric actuator is fixedly connected to the top of the base; the output end of the first electric actuator extends through the base to the bottom of the base; a nozzle is fixedly connected to the output end of the first electric actuator; an air guide pipe is connected to the middle of the air pump; the other end of the air guide pipe is connected to the nozzle; a solenoid valve is installed on the side wall of the storage tank; a telescopic grout delivery pipe is connected to the side wall of the solenoid valve; a grouting pipe is fixedly connected to the bottom of the storage tank; the end of the telescopic grout delivery pipe is connected to the middle of the grouting pipe; by setting a telescopic nozzle, the bridge joints can be blown and washed, reducing the residual moisture inside the bridge joints, and at the same time reducing the residual impurities inside the joints, which helps the filler to fully cure the joints.
[0008] Preferably, a heating wire is fixed to the inner wall of the nozzle; multiple sets of heating wires are provided inside the nozzle; by providing heating wires inside the nozzle, the curing effect of the filler is further improved.
[0009] Preferably, a protective cover is fixed to the bottom of the nozzle; the protective cover covers the output end of the nozzle; by providing a protective cover at the end of the nozzle, the direct contact between the nozzle end and the inner wall of the bridge gap is reduced, and the stability of the nozzle airflow is improved; at the same time, the collision between solid particles in the gap and the nozzle end is reduced, and the nozzle end is protected from deformation.
[0010] Preferably, a second electric actuator is fixedly connected to the bottom of the base; a support arm is fixedly connected to the output end of the second electric actuator; the end of the support arm is connected to the output end of the telescopic grouting pipe; by providing a second electric actuator and a support arm connected to the telescopic grouting pipe at the bottom of the base, the filler can be fully injected into the bridge gap, and when the filler is concrete, the segregation of concrete during the falling process can be effectively reduced.
[0011] Preferably, a spring is fixedly connected to the side wall of the output end of the telescopic grout delivery pipe; a vibrator is fixedly connected to the end of the spring; by adding a spring and a vibrator to one side of the telescopic grout delivery pipe, the vibrator can perform defoaming operations on the filler inside the bridge gap, thereby improving the curing effect of the filler.
[0012] Preferably, a desiccant box is fixedly connected to the bottom of the base; the bottom of the desiccant box has multiple mesh holes; by providing a desiccant box at the bottom of the base, the equipment at the bottom of the base can be kept dry, reducing the problem of equipment oxidation.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The bridge joint filling device of this utility model, by setting a retractable nozzle, can realize the blowing and washing of bridge joints, reduce the moisture residue inside the bridge joints, and at the same time reduce the residue of impurities inside the joints, which helps the filler to fully cure the joints.
[0015] 2. The bridge joint filling device of this utility model reduces direct contact between the nozzle tip and the inner wall of the bridge joint by providing a protective cover at the nozzle tip, thereby improving the stability of the nozzle's airflow; at the same time, it reduces the collision between solid particles in the joint and the nozzle tip, protecting the nozzle tip from deformation. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a cross-sectional view of the present invention;
[0019] Figure 3 This is a schematic diagram of the nozzle and air pump in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the nozzle end with a protective net installed in this utility model;
[0021] Figure 5 This is a schematic diagram of the grouting pipe and vibrator.
[0022] In the diagram: 1. Storage tank; 11. Base; 12. Air pump; 13. First electric actuator; 14. Nozzle; 15. Air guide pipe; 16. Solenoid valve; 17. Telescopic grout delivery pipe; 18. Grouting pipe; 2. Heating wire; 3. Protective cover; 4. Second electric actuator; 41. Support arm; 5. Spring; 51. Vibrator; 6. Desiccant box. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 2 As shown in the figure, a bridge joint filling device according to an embodiment of the present invention includes a storage tank 1; a base 11 is fixedly connected to the bottom of the storage tank 1; an air pump 12 is fixedly connected to the top of the base 11; a first electric actuator 13 is fixedly connected to the top of the base 11; the output end of the first electric actuator 13 extends through the base 11 to the bottom of the base 11; a nozzle 14 is fixedly connected to the output end of the first electric actuator 13; an air guide pipe 15 is connected to the middle of the air pump 12; the other end of the air guide pipe 15 is connected to the nozzle 14; a solenoid valve 16 is installed on the side wall of the storage tank 1; a telescopic grout delivery pipe 17 is connected to the side wall of the solenoid valve 16; a grouting pipe 18 is fixedly connected to the bottom of the storage tank 1; the end of the telescopic grout delivery pipe 17 is connected to the middle of the grouting pipe 18; during operation, the filler material for filling bridge gaps is first added into the storage tank 1, and then the base 11 can be moved to the top of the bridge gap. At this time, the nozzle is first... 14. Align the nozzle with the top of the bridge joint, then extend the first electric actuator 13 to insert the nozzle 14 into the bridge joint. Then, turn on the air pump 12 to deliver air to the nozzle 14 through the air pipe 15. During this process, the nozzle 14 can clean the joint. After the nozzle 14 cleans the bridge joint, use the first electric actuator 13 to pull the nozzle 14 out of the joint. Then, control the base 11 to move so that the grouting pipe 18 is aligned with the bridge joint. At this time, the filler can be delivered to the grouting pipe 18 through the solenoid valve 16 and the telescopic grouting pipe 17, and then the filler can be sprayed into the joint, thus completing the filling of the bridge joint. By setting the telescopic nozzle 14, the bridge joint can be cleaned, reducing the amount of moisture and impurities remaining inside the joint, which helps the filler to fully cure the joint.
[0025] like Figure 4 As shown, a heating wire 2 is fixed to the inner wall of the nozzle 14; multiple sets of heating wires 2 are provided inside the nozzle 14; during operation, the gas sprayed from the nozzle 14 can be heated by the heating wires 2 inside the nozzle 14, which can quickly evaporate and dry the moisture inside the bridge gap, further improving the curing effect of the filler.
[0026] like Figures 3 to 4 As shown, a protective cover 3 is fixedly attached to the bottom of the nozzle 14; the protective cover 3 covers the output end of the nozzle 14; during operation, by providing a protective cover 3 at the end of the nozzle 14, the clogging problem caused by the accumulation of dust and impurities in the air at the end of the nozzle 14 can be reduced. At the same time, the protective cover 3 can protect the end of the nozzle 14 as it extends into the gap between the nozzle 14 and the bridge gap, reducing direct contact between the end of the nozzle 14 and the inner wall of the bridge gap, and improving the stability of the air jet from the nozzle 14; at the same time, it reduces the collision between solid particles in the gap and the end of the nozzle 14, protecting the end of the nozzle 14 from deformation.
[0027] like Figure 5 As shown, a second electric actuator 4 is fixedly connected to the bottom of the base 11; a support arm 41 is fixedly connected to the output end of the second electric actuator 4; the end of the support arm 41 is connected to the output end of the telescopic grouting pipe 17; during operation, by providing the second electric actuator 4 and the support arm 41 at the bottom of the base 11 and connecting them to the telescopic grouting pipe 17, the telescopic grouting pipe 17 can be controlled to extend into the gap during the injection of filler material, so that the filler material is fully injected into the gap of the bridge. At the same time, when the filler material is concrete, it can effectively reduce the segregation of concrete during the falling process.
[0028] like Figure 5 As shown, a spring 5 is fixedly connected to the side wall of the output end of the telescopic grout delivery pipe 17; a vibrating rod 51 is fixedly connected to the end of the spring 5; during operation, by adding a spring 5 and a vibrating rod 51 to one side of the telescopic grout delivery pipe 17, the vibrating rod 51 can be turned on after the telescopic grout delivery pipe 17 is inserted into the gap and the grouting is completed, so that the vibrating rod 51 can perform defoaming operation on the filling material inside the bridge gap, thereby improving the curing effect of the filling material.
[0029] like Figure 2 As shown, a desiccant box 6 is fixedly connected to the bottom of the base 11; the bottom of the desiccant box 6 has multiple mesh holes; during operation, by providing a desiccant box 6 at the bottom of the base 11, desiccant can be added into the desiccant box 6, and then the moisture at the bottom of the base 11 will be absorbed by the desiccant inside the desiccant box 6, keeping the equipment at the bottom of the base 11 dry and reducing the problem of equipment oxidation.
[0030] The working principle is as follows: First, the filler material for filling bridge gaps is added into the storage tank 1. Then, the base 11 is moved to the top of the bridge gap. At this time, the nozzle 14 is aligned with the top of the bridge gap. Then, the first electric actuator 13 is extended to insert the nozzle 14 into the bridge gap. Then, the air pump 12 is turned on, so that air is delivered to the nozzle 14 through the air guide pipe 15 under the operation of the air pump 12. During this process, the nozzle 14 blows and cleans the gap. After the nozzle 14 blows and cleans the bridge gap, the first electric actuator 13 is used to pull the nozzle 14 out of the gap. Then, the base 11 is moved again so that the grouting pipe 18 is aligned with the bridge gap. At this time, the filler material is delivered to the grouting pipe 18 through the solenoid valve 16 and the telescopic grout delivery pipe 17, and then the filler material is sprayed into the gap, thus completing the filling of the bridge gap. The filling process involves: a heating wire 2 inside the nozzle 14 to heat the gas ejected from the nozzle 14; a protective cover 3 at the end of the nozzle 14 to reduce clogging caused by dust and impurities in the air; and the protective cover 3 to protect the end of the nozzle 14 as it extends into the bridge gap, reducing direct contact between the end of the nozzle 14 and the inner wall of the bridge gap, thus improving the stability of the nozzle's airflow. A second electric push rod 4 and a support arm 41 at the bottom of the base 11 are connected to the telescopic grouting pipe 17, allowing control of the telescopic grouting pipe 17 as it injects filler, ensuring sufficient filling into the bridge gap. This also effectively reduces segregation of concrete during its descent. By adding a spring 5 and a vibrator 51 to one side of the telescopic grout delivery pipe 17, the vibrator 51 can be turned on after the telescopic grout delivery pipe 17 is inserted into the gap and the grouting is completed. The vibrator 51 can then defoam the filling material inside the bridge gap. A desiccant box 6 is provided at the bottom of the base 11. Desiccant can be added to the desiccant box 6 during operation. The moisture at the bottom of the base 11 will be absorbed by the desiccant in the desiccant box 6, keeping the equipment at the bottom of the base 11 dry.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bridge joint sealing device, characterized in that: The system includes a storage tank (1); a base (11) is fixedly connected to the bottom of the storage tank (1); an air pump (12) is fixedly connected to the top of the base (11); a first electric actuator (13) is fixedly connected to the top of the base (11); the output end of the first electric actuator (13) extends through the base (11) to the bottom of the base (11); a nozzle (14) is fixedly connected to the output end of the first electric actuator (13); an air guide pipe (15) is connected to the middle of the air pump (12); the other end of the air guide pipe (15) is connected to the nozzle (14); a solenoid valve (16) is installed on the side wall of the storage tank (1); a telescopic grout delivery pipe (17) is connected to the side wall of the solenoid valve (16); a grouting pipe (18) is fixedly connected to the bottom of the storage tank (1); the end of the telescopic grout delivery pipe (17) is connected to the middle of the grouting pipe (18).
2. The bridge joint sealing device according to claim 1, characterized in that: A heating wire (2) is fixed to the inner wall of the nozzle (14); multiple sets of the heating wire (2) are provided inside the nozzle (14).
3. A bridge joint sealing device according to claim 2, characterized in that: The nozzle (14) is fixedly connected to a protective cover (3) at its bottom; the protective cover (3) covers the output end of the nozzle (14).
4. A bridge joint sealing device according to claim 3, characterized in that: The base (11) is fixedly connected to the bottom of a second electric actuator (4); the output end of the second electric actuator (4) is fixedly connected to a support arm (41); the end of the support arm (41) is connected to the output end of a telescopic slurry pipe (17).
5. A bridge joint sealing device according to claim 4, characterized in that: A spring (5) is fixed to the side wall of the output end of the telescopic slurry pipe (17); a vibrating rod (51) is fixed to the end of the spring (5).
6. A bridge joint sealing device according to claim 5, characterized in that: The base (11) has a desiccant box (6) fixedly attached to its bottom; the bottom of the desiccant box (6) has multiple mesh openings.