Expansion joint repairing equipment for road and bridge construction

Abstract

The utility model belongs to the technical field of repairing equipment, and discloses expansion joint repairing equipment for road bridge construction, which comprises a shell, an extrusion mechanism is arranged in the shell, a positioning mechanism is arranged at the lower end of the shell, a bridge body is arranged on the outer side of the positioning mechanism, a pre-buried layer is arranged on the inner side of the bridge body, and the pre-buried layer is arranged on the outer side of the shell. The upper surface of the pre-buried layer is attached to the positioning mechanism, the extrusion mechanism comprises a push rod, the upper end of the push rod penetrates through the upper inner wall of the shell, a handle is fixedly arranged at the upper end of the push rod, and a push plate is fixedly arranged at the lower end of the push rod. The slurry storage cavity is in sliding fit with the push plate to ensure uniform output of slurry, meanwhile, the observation opening facilitates monitoring of the grouting state, the operation accuracy is improved, stable fit of the equipment and the bridge body is achieved through the positioning mechanism, slurry leakage is prevented through combination of a sealing cover and a sealing gasket, and the repairing quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of repair equipment technology, specifically a repair equipment for expansion joints in road and bridge construction. Background Technology

[0002] Expansion joint repair equipment for road and bridge construction is suitable for repairing various bridge expansion joints that have developed cracks, damage, or aging due to long-term use. It is especially suitable for projects with high requirements for structural stability, such as highways, urban viaducts, and cross-river bridges. It can perform precise grouting repair on expansion joints under different climatic conditions, ensuring that the repaired expansion joints have good sealing performance, durability, and deformation resistance, effectively extending the service life of bridges and ensuring traffic safety.

[0003] However, the following problems were found in the implementation of the relevant technologies:

[0004] In existing road and bridge expansion joint repair technologies, the lack of a stable grout control device often leads to uneven grout output during grouting, resulting in local accumulation or voids, which affects the compactness of the repaired structure. At the same time, the connection between most equipment and the bridge body is prone to displacement due to vibration or temperature changes, causing grout to leak outside the expansion joint, which not only wastes materials but also pollutes the bridge surface environment. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a repair device for expansion joints in road and bridge construction, which features stable grout discharge and secure fit. This invention achieves stable grout discharge through an extrusion mechanism, and the sliding fit between the grout storage chamber and the push plate ensures uniform grout output. Simultaneously, the observation port facilitates monitoring of the grouting status, improving operational accuracy. Furthermore, a positioning mechanism ensures a secure fit between the device and the bridge structure, and the combination of a sealing cap and a sealing gasket prevents grout leakage, thus improving repair quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a road and bridge construction expansion joint repair device, comprising a shell, an extrusion mechanism inside the shell, a positioning mechanism at the lower end of the shell, a bridge body outside the positioning mechanism, an embedded layer inside the bridge body, the upper surface of the embedded layer being in contact with the positioning mechanism, the extrusion mechanism comprising a push rod, the upper end of the push rod penetrating the upper inner wall of the shell, a handle fixedly provided at the upper end of the push rod, a push plate fixedly provided at the lower end of the push rod, a release spring fixedly provided on the upper surface of the push plate, and a slurry outlet on the lower surface of the shell.

[0007] Preferably, the positioning mechanism includes a grouting pipe, the lower end of which penetrates the upper surface of the pre-embedded layer. A positioning plate is fixedly provided on the outer side of the grouting pipe, and the lower surface of the positioning plate is in contact with the pre-embedded layer. A threaded groove is provided at the upper end of the grouting pipe, and a sealing cap is fitted on the outer side of the threaded groove. The inner side of the sealing cap is rotatably connected to the grout outlet. A grouting hole is provided at the upper end of the grouting pipe, and the inner side of the grouting hole is slidably in contact with the grout outlet.

[0008] Preferably, a sealing ring is fixedly provided on the upper surface of the housing, and the inner side of the sealing ring is in contact with the push rod.

[0009] Preferably, the inner side of the outer shell has a slurry storage cavity, and the inner side of the slurry storage cavity is slidably attached to the push plate.

[0010] Preferably, the outer side of the outer casing is provided with anti-slip texture.

[0011] Preferably, an observation port is provided on the outer side of the outer casing.

[0012] Preferably, a sealing gasket is fixedly provided on the upper inner wall of the sealing cover.

[0013] Preferably, the upper surface of the positioning plate is provided with a plurality of positioning grooves arranged in a ring, and the lower surface of the positioning plate is fixedly provided with a positioning ring, which is in contact with the upper surface of the pre-embedded layer.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model achieves stable slurry output through the extrusion mechanism. The slurry storage chamber and the push plate slide and fit together to ensure uniform slurry output. At the same time, the observation port facilitates monitoring of the slurry injection status and improves the accuracy of operation.

[0016] 2. This utility model achieves a stable fit between the equipment and the bridge body through a positioning mechanism, and the combination of the sealing cover and the sealing gasket prevents grout leakage and improves the repair quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a construction diagram of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the extrusion mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the positioning mechanism of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Extrusion mechanism; 3. Positioning mechanism; 4. Bridge body; 5. Embedded layer; 20. Push rod; 21. Sealing ring; 22. Observation port; 23. Slow-release spring; 24. Grout storage chamber; 25. Grout outlet; 26. Push plate; 27. Anti-slip texture; 28. Handle; 30. Grouting pipe; 31. Positioning groove; 32. Positioning ring; 33. Positioning plate; 34. Threaded groove; 35. Sealing cap; 36. Sealing gasket; 37. Grouting 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown, this utility model provides a road and bridge construction expansion joint repair device, including a shell 1, an extrusion mechanism 2 inside the shell 1, a positioning mechanism 3 at the lower end of the shell 1, a bridge body 4 outside the positioning mechanism 3, and an embedded layer 5 inside the bridge body 4. The upper surface of the embedded layer 5 is in contact with the positioning mechanism 3. The extrusion mechanism 2 includes a push rod 20, the upper end of which penetrates the upper inner wall of the shell 1. A handle 28 is fixedly provided at the upper end of the push rod 20, and a push plate 26 is fixedly provided at the lower end of the push rod 20. A release spring 23 is fixedly provided on the upper surface of the push plate 26. A slurry outlet 2 is provided on the lower surface of the shell 1. 5. Using the squeezing mechanism 2, the operator holds the handle 28, pulls the push rod 20 upward to draw the repair slurry into the housing 1, then connects the squeezing mechanism 2 to the positioning mechanism 3, and releases the handle. This allows the release spring 23 to push the push plate 26 downward within the slurry storage chamber 24 inside the housing 1. The push plate 26 squeezes the slurry in the slurry storage chamber 24, and the slurry flows out from the outlet 25 under pressure. The release spring 23 acts as a buffer during the downward pressing of the push plate 26, making the slurry discharge more stable. The operator can observe the slurry flow status through the observation port 22 and control the downward pressing speed and force of the push rod 20 according to the actual situation.

[0024] Specifically, the positioning mechanism 3 includes a grouting pipe 30, the lower end of which penetrates the upper surface of the embedded layer 5. A positioning plate 33 is fixedly installed on the outer side of the grouting pipe 30, and the lower surface of the positioning plate 33 is in contact with the embedded layer 5. A threaded groove 34 is opened at the upper end of the grouting pipe 30, and a sealing cap 35 is fitted on the outer side of the threaded groove 34. The inner side of the sealing cap 35 is rotatably connected to the grout outlet 25. A grouting hole 37 is opened at the upper end of the grouting pipe 30, and the inner side of the grouting hole 37 is slidably in contact with the grout outlet 25. Through the positioning mechanism 3, the lower end of the grouting pipe 30 penetrates the upper surface of the embedded layer 5 inside the bridge body 4. The positioning ring 32 on the lower surface of the positioning plate 33 fits tightly against the upper surface of the pre-embedded layer 5. The positioning grooves 31 distributed in a ring on the upper surface of the positioning plate 33 can further enhance the positioning stability. The sealing cover 35 is fitted onto the outside of the threaded groove 34 at the upper end of the grouting pipe 30, and the inner side of the sealing cover 35 is rotatably connected to the grout outlet 25. The sealing gasket 36 on the inner wall of the sealing cover 35 plays a sealing role. When the extrusion mechanism 2 discharges grout, the grout flows out from the grout outlet 25 and is injected into the expansion joint through the grouting hole 37 at the upper end of the grouting pipe 30. The inner side of the grouting hole 37 slides against the grout outlet 25 to ensure the smooth grouting process.

[0025] Furthermore, the inner side of the sealing ring 21 fixed on the upper surface of the outer shell 1 is in contact with the push rod 20, which can effectively prevent the slurry from leaking from the connection between the push rod 20 and the outer shell 1 during the slurry extrusion process, avoid slurry waste, keep the inside of the equipment clean, reduce cleaning work, and improve the efficiency and life of the equipment.

[0026] Furthermore, the inner side of the slurry storage cavity 24 opened on the inner side of the outer shell 1 slides and fits against the push plate 26, so that when the push plate 26 squeezes the slurry, it can evenly squeeze the slurry out of the slurry storage cavity 24, ensuring the uniformity and stability of the slurry output, avoiding the situation of too much or too little slurry in some places, and improving the quality of expansion joint repair.

[0027] It is worth noting that the anti-slip texture 27 on the outer side of the outer shell 1 increases the friction when the operator holds the equipment. When pushing the push rod 20 to perform grouting operation, it can effectively prevent the equipment from slipping, improve the stability and safety of operation, and is especially suitable for operation in complex environments such as dampness and oil stains at the construction site.

[0028] It is worth noting that the observation port 22 on the outer side of the outer shell 1 allows operators to observe the flow status of the grout in real time during the grouting process, including the grout flow rate, color, and uniformity. Through the observation port 22, operators can adjust the pressing speed and force of the push rod 20 in a timely manner to ensure that the grouting process meets the requirements, thereby improving the accuracy of the operation and the repair effect.

[0029] It is worth mentioning that the sealing gasket 36 fixed on the inner wall of the sealing cover 35 further enhances the sealing performance between the sealing cover 35 and the grouting pipe 30. During the grouting process, it can effectively prevent the grout from leaking from the connection between the sealing cover 35 and the grouting pipe 30, avoid the grout from contaminating the bridge body 4 and equipment, and at the same time ensure the stability of the grouting pressure and improve the repair quality.

[0030] It is worth emphasizing that the multiple annularly distributed positioning grooves 31 on the upper surface of the positioning plate 33 and the positioning ring 32 fixed on the lower surface enable the positioning mechanism 3 to fit more firmly with the embedded layer 5 inside the bridge body 4. The positioning grooves 31 can increase the friction and connection stability between the positioning plate 33 and the embedded layer 5, while the positioning ring 32 further restricts the movement of the positioning mechanism 3, ensuring that the equipment will not be displaced during the grouting process, thus guaranteeing the accuracy of grouting and the repair effect.

[0031] Working principle: Through the extrusion mechanism 2, the operator holds the handle 28, pulls the push rod 20 upward to draw the repair slurry into the housing 1, and then connects the extrusion mechanism 2 to the positioning mechanism 3. Then, the operator releases the handle, which allows the release spring 23 to push the push plate 26 downward in the slurry storage chamber 24 inside the housing 1. The push plate 26 extrudes the slurry in the slurry storage chamber 24, and the slurry flows out from the slurry outlet 25 under pressure. The release spring 23 plays a buffering role during the downward pressing of the push plate 26, making the slurry discharge more stable. The operator can observe the slurry flow status through the observation port 22 and control the pressing speed and force of the push rod 20 according to the actual situation.

[0032] The lower end of the grouting pipe 30 is inserted through the upper surface of the embedded layer 5 inside the bridge body 4 via the positioning mechanism 3. The positioning ring 32 on the lower surface of the positioning plate 33 is tightly fitted with the upper surface of the embedded layer 5. The positioning grooves 31 distributed in a ring on the upper surface of the positioning plate 33 can further enhance the positioning stability. The sealing cap 35 is fitted on the outside of the threaded groove 34 at the upper end of the grouting pipe 30, and the inner side of the sealing cap 35 is rotatably connected with the grout outlet 25. The sealing gasket 36 on the inner wall of the sealing cap 35 plays a sealing role. When the extrusion mechanism 2 discharges grout, the grout flows out from the grout outlet 25 and is injected into the expansion joint through the grouting hole 37 at the upper end of the grouting pipe 30. The inner side of the grouting hole 37 slides and fits with the grout outlet 25 to ensure the smooth grouting process.

[0033] 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.

[0034] 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 road and bridge construction expansion joint repair device, comprising a housing (1), characterized in that: The outer shell (1) is provided with an extrusion mechanism (2), the lower end of the outer shell (1) is provided with a positioning mechanism (3), the outer side of the positioning mechanism (3) is provided with a bridge body (4), the inner side of the bridge body (4) is provided with an embedded layer (5), and the upper surface of the embedded layer (5) is in contact with the positioning mechanism (3). The extrusion mechanism (2) includes a push rod (20), the upper end of which penetrates the upper inner wall of the outer shell (1). A handle (28) is fixedly provided at the upper end of the push rod (20), and a push plate (26) is fixedly provided at the lower end of the push rod (20). A release spring (23) is fixedly provided on the upper surface of the push plate (26), and a slurry outlet (25) is opened on the lower surface of the outer shell (1).

2. The expansion joint repair equipment for road and bridge construction according to claim 1, characterized in that: The positioning mechanism (3) includes a grouting pipe (30), the lower end of which penetrates the upper surface of the pre-embedded layer (5). A positioning plate (33) is fixedly provided on the outer side of the grouting pipe (30), and the lower surface of the positioning plate (33) is in contact with the pre-embedded layer (5). A threaded groove (34) is provided at the upper end of the grouting pipe (30), and a sealing cap (35) is fitted on the outer side of the threaded groove (34). The inner side of the sealing cap (35) is rotatably connected to the grout outlet (25). A grouting hole (37) is provided at the upper end of the grouting pipe (30), and the inner side of the grouting hole (37) is slidably in contact with the grout outlet (25).

3. The expansion joint repair equipment for road and bridge construction according to claim 1, characterized in that: A sealing ring (21) is fixedly provided on the upper surface of the outer shell (1), and the inner side of the sealing ring (21) is in contact with the push rod (20).

4. The expansion joint repair equipment for road and bridge construction according to claim 1, characterized in that: The inner side of the outer shell (1) has a slurry storage cavity (24), and the inner side of the slurry storage cavity (24) slides and fits against the push plate (26).

5. The expansion joint repair equipment for road and bridge construction according to claim 1, characterized in that: The outer side of the outer shell (1) is provided with anti-slip texture (27).

6. The expansion joint repair equipment for road and bridge construction according to claim 1, characterized in that: An observation port (22) is provided on the outer side of the outer shell (1).

7. The expansion joint repair equipment for road and bridge construction according to claim 2, characterized in that: A sealing gasket (36) is fixedly provided on the upper inner wall of the sealing cover (35).

8. The expansion joint repair equipment for road and bridge construction according to claim 2, characterized in that: The upper surface of the positioning plate (33) is provided with a plurality of positioning grooves (31) arranged in a ring, and the lower surface of the positioning plate (33) is fixedly provided with a positioning ring (32), which is in contact with the upper surface of the pre-embedded layer (5).

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