Prefabricated part modular finished product caulking device

The modular prefabricated joint sealing device simplifies the joint treatment steps for precast concrete stairs and platform slabs, improves construction efficiency and joint sealing and stability, and solves the problems of complex joint treatment and difficulty in guaranteeing quality in existing technologies.

CN223535893UActive Publication Date: 2025-11-11GUANGZHOU PEARL RIVER CONSTR DEV CO LTD
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Patent Information

Application Number
CN202423030030.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-11
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

In existing technologies, the joint treatment of precast concrete stairs and platform slabs is complex, time-consuming, and labor-intensive, and the quality is difficult to guarantee.

Method used

A prefabricated modular caulking device is adopted, which includes a structural panel and a filling structure. The structural panel is bonded to the side wall of the joint. The filling structure consists of a first sealing body, a first PE rod and a filler. A second PE rod and a second sealing body are added to improve stability and sealing.

Benefits of technology

It significantly simplifies the joint treatment process, improves construction efficiency, ensures the sealing and stability of the joints, prevents moisture penetration and structural deformation, and enhances building quality and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a prefabricated part modularized finished product caulking device, and relates to the technical field of prefabricated building structures, the prefabricated part modularized finished product caulking device comprises at least two oppositely-arranged structural plates and a filling structure arranged between the two structural plates, and the two sides, away from the filling structure, of the two structural plates are used for being bonded with the two side walls of a prefabricated part abutted seam correspondingly; the filling structure comprises a first sealing body, a first PE rod and a filling body which are connected in sequence, and the end, away from the first PE rod, of the first sealing body extends to the end face of one end of the structural plate and is used for abutting against the two side walls of the abutted seam opening. The method has the effects of simplifying the processing steps of the abutted seam of the prefabricated part and improving the processing quality of the abutted seam.
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Description

Technical Field

[0001] This application relates to the technical field of prefabricated building structures, and in particular to a modular prefabricated component caulking device. Background Technology

[0002] The progress of industrialization in construction has led to the continuous optimization of prefabricated building structures. As an important part of prefabricated buildings, prefabricated component buildings are widely used due to their advantages of low resource consumption, less environmental pollution, and fast construction pace, providing people with healthy, suitable, efficient, and environmentally friendly living spaces and environments.

[0003] In related technologies, such as Chinese Patent No. CN218814860U, a connection structure between a prefabricated steel structure precast concrete staircase and a platform ladder beam is disclosed. The structure includes an I-beam ladder beam, on which a precast concrete staircase and a platform slab are mounted. Between the bottom surface of the precast concrete staircase and the I-beam ladder beam, a polytetrafluoroethylene plate and a cement mortar layer are arranged sequentially from top to bottom. The precast concrete staircase has tapered bolt holes with decreasing diameters from top to bottom. The top of the fixing bolt rod on the I-beam ladder beam is inserted into the tapered bolt hole and connected to an annular pad and a fixing nut.

[0004] However, the aforementioned technologies require cleaning the joints of precast concrete stairs and platform slabs before filling them with materials, laying PE rods, and applying adhesive. This process is complex, time-consuming, labor-intensive, and the quality of the treatment is difficult to guarantee. Utility Model Content

[0005] To simplify the processing steps for prefabricated component joints and improve the quality of joint processing, this application provides a modular prefabricated component joint sealing device.

[0006] The modular prefabricated component caulking device provided in this application adopts the following technical solution:

[0007] A prefabricated modular finished product caulking device includes at least two opposing structural plates and a filling structure disposed between the two structural plates. The two sides of the structural plates opposite to the filling structure are respectively used to bond with the two side walls of the prefabricated component joint. The filling structure includes a first sealing body, a first PE rod and a filling body connected in sequence. The end of the first sealing body opposite to the first PE rod extends to the end face of one end of the structural plate and is used to abut against the two side walls at the joint opening.

[0008] By adopting the above technical solution, this modular prefabricated joint sealing device can significantly reduce the cumbersome process steps in traditional joint treatment, thereby improving construction efficiency and shortening the construction cycle. At the same time, through pre-set structural panels and filling structures, the device ensures the sealing and stability of the joints, effectively preventing moisture penetration and structural deformation, and improving the overall quality and safety of the building.

[0009] Optionally, the filling structure further includes a second PE rod and a second sealing body disposed between the two structural plates. The second PE rod is connected to the side of the filling body away from the first PE rod, and one side of the second sealing body is connected to the side of the second PE rod away from the filling body, while the other side extends to the end face of the structural plate away from the first sealing body.

[0010] By adopting the above technical solution, the addition of a second PE rod and a second sealing body further improves the sealing performance and stability of the caulking device. The second PE rod is connected to the side of the filler away from the first PE rod, which enhances the overall rigidity and compressive strength of the filling structure and effectively prevents the filling material from shifting during use. The second sealing body is connected to the side of the second PE rod away from the filler and extends to the end face of the structural plate away from the first sealing body, ensuring that the bottom of the joint is fully sealed, preventing moisture and air penetration, and extending the service life of the caulking device.

[0011] Optionally, the structural plate includes a first straight portion, and the two first straight portions of the two structural plates are arranged at an acute angle with the narrow end of the acute angle facing the second sealing body.

[0012] By adopting the above technical solution, the structural plate of the caulking device is inserted into the joint in a wedge shape, which significantly improves the sealing performance of the caulking device. Specifically, since the first straight part of the two structural plates is set at an acute angle and the narrow end faces the second sealing body, this design allows the caulking device to better adapt to the shape of the joint and generate a certain pre-tightening force during installation, further enhancing the sealing effect and ensuring stability and reliability during long-term use.

[0013] Optionally, the structural plate includes a second straight portion and a bent portion. The two second straight portions of the two structural plates are arranged in parallel. One end of the bent portion is arranged at a right angle to one end of the second straight portion. The other end of the bent portion extends in a direction away from the filling structure. The first sealing body extends to the two ends of the two bent portions away from the second straight portions for abutting against the two side walls of the joint.

[0014] By adopting the above technical solution, this prefabricated modular caulking device is particularly suitable for joints; specifically, the design of the second straight section and the bent section of the structural panel can effectively adapt to the special shape of the "T-shaped" joint. The parallel arrangement of the second straight section ensures the stability and uniform distribution of the device in the straight part of the joint, while one end of the bent section is set at a right angle to the second straight section, allowing the bent section to better fit the top structure of the "T-shaped" joint; at the same time, the first sealing body extends to the two ends of the bent section away from the second straight section, ensuring effective contact with the side walls of the joint, thereby improving the waterproof and dustproof effect of the entire caulking device.

[0015] Optionally, the first sealing body has a plurality of protruding ridge structures on its two sides that abut against the two side walls of the joint, and the extending direction of the protruding ridge structures is parallel to the extending direction of the joint.

[0016] By adopting the above technical solutions, the sealing performance is improved, effectively preventing moisture penetration, and the overall stability of the device is enhanced.

[0017] Optionally, the cross-section of the first PE rod and / or the second PE rod is circular or polygonal; the first sealing body and / or the second sealing body is MS sealant.

[0018] By adopting the above technical solutions, when the cross-section of the first PE rod and / or the second PE rod is circular, it can better adapt to the joints of prefabricated components with longitudinal displacement and improve the stability of the caulking device; while when the cross-section is polygonal, it can enhance the lateral force-bearing capacity and improve the lateral force strength of the caulking device; using MS sealant as the first sealant and / or the second sealant can improve sealing performance and weather resistance, ensuring reliability and durability during long-term use.

[0019] Optionally, a waterstop is provided between the first sealing body and the two structural plates, and between the first PE rod and the filler.

[0020] By adopting the above technical solutions, it is possible to further and effectively prevent water penetration, improve the waterproof performance of the caulking device, and ensure the long-term stability and safety of the joints of precast components.

[0021] Optionally, a cover plate is laid on the end face of the first sealing body away from the first PE rod.

[0022] By adopting the above technical solution, laying the cover plate can effectively prevent external impurities from entering the contact area between the first sealing body and the joint, improve sealing performance and durability, and at the same time protect the first sealing body from external environmental erosion and extend its service life.

[0023] Optionally, the filler is fireproof rock wool or polystyrene board.

[0024] By adopting the above technical solutions, fireproof rock wool or polystyrene board can be used as the filler, which can effectively improve the fire resistance and thermal insulation performance of the caulking device, while ensuring the stability and durability of the filler and ensuring long-term reliable sealing of the joints of precast components.

[0025] Optionally, the overall cross-section of the caulking device is either "I" shaped or "T" shaped.

[0026] By adopting the above technical solutions, it is possible to better adapt to seams of different shapes and sizes, and improve the applicability and ease of installation of the caulking device; the "I-shaped" design makes the caulking device simpler and is suitable for narrower seams; while the "T-shaped" design can provide better support and stability when the seam is wider, enhancing the overall performance of the caulking device.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. This modular prefabricated joint sealing device significantly reduces the cumbersome process steps in traditional joint treatment, thereby improving construction efficiency and shortening the construction cycle. Simultaneously, through pre-set structural panels and filling structures, the device ensures the sealing and stability of the joints, effectively preventing moisture penetration and structural deformation, thus enhancing the overall quality and safety of the building.

[0029] 2. By adopting the above technical solution, the addition of a second PE rod and a second sealing body further improves the sealing performance and stability of the caulking device; the second PE rod is connected to the side of the filler away from the first PE rod, enhancing the overall rigidity and compressive strength of the filling structure and effectively preventing displacement of the filler material during use; the second sealing body is connected to the side of the second PE rod away from the filler and extends to the end face of the structural plate away from the first sealing body, ensuring that the bottom of the joint is fully sealed, preventing moisture and air penetration, and extending the service life of the caulking device;

[0030] 3. By adopting the above technical solution, the structural plate of the caulking device is inserted into the joint in a wedge shape, which significantly improves the sealing performance of the caulking device. Specifically, since the first straight part of the two structural plates is set at an acute angle, and the narrow end of the acute angle faces the second sealing body, this design allows the caulking device to better adapt to the shape of the joint and generate a certain pre-tightening force during installation, further enhancing the sealing effect and ensuring stability and reliability during long-term use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0032] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0033] Figure 3 This is a schematic diagram of the overall structure of Embodiment 3 of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Structural plate; 11. First straight section; 12. Second straight section; 13. Bending section; 2. Filling structure; 21. First sealing body; 22. First PE rod; 23. Filling body; 24. Second PE rod; 25. Second sealing body; 3. Rib structure; 4. Waterstop strip; 5. Cover plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0036] This application discloses a modular prefabricated component caulking device.

[0037] Example 1

[0038] Reference Figure 1 The caulking device includes at least two opposing structural plates 1 and a filling structure 2 disposed between the two structural plates 1. The two sides of the structural plates 1 facing away from the filling structure 2 are respectively used to bond with the two side walls of the joint of the precast component. The filling structure 2 includes a first sealing body 21, a first PE rod 22 and a filling body 23 connected in sequence. The end of the first sealing body 21 facing away from the first PE rod 22 extends to the end face of one end of the structural plate 1 and is used to abut against the two side walls at the joint opening. This design can significantly reduce the cumbersome process steps in the traditional joint treatment process, improve construction efficiency, and at the same time ensure the sealing and stability of the joint, effectively preventing moisture penetration and structural deformation.

[0039] Specifically, in this embodiment, the structural plate 1 includes a first straight portion 11, which may be made of aluminum alloy plate to ensure its strength and corrosion resistance; two first straight portions 11 are arranged in parallel, and a receiving cavity is formed between the two first straight portions 11; the side of the first straight portion 11 facing away from the receiving cavity is bonded to the inner sidewall of the joint with adhesive. In other embodiments, the first straight portion 11 may also be made of nylon plate or stainless steel plate with better weather resistance.

[0040] In this embodiment, the first sealing body 21 fills one end of the receiving cavity located at the joint opening; one end of the first sealing body 21 is located inside the receiving cavity, and the other end protrudes from the end faces of the two first straight portions 11, and abuts against the inner sidewall of the joint opening to seal and fill the joint opening; the first sealing body 21 is MS sealant, which has excellent sealing performance and weather resistance, and can maintain the sealing effect for a long time. In other embodiments, the first sealing body 21 can also be silicone sealant or polyurethane sealant; silicone sealant has good elasticity and high temperature resistance, and is suitable for areas with large temperature differences; polyurethane sealant has excellent elasticity and adhesion, and is suitable for joints that require frequent displacement.

[0041] In this embodiment, the first PE rod 22 is disposed within the receiving cavity parallel to the extension direction of the seam. The first PE rod 22 is connected to one end of the first sealing body 21 located within the receiving cavity. The cross-section of the first PE rod 22 is circular, which provides good flexibility and compression resilience, making it suitable for narrower seam widths. In other embodiments, the cross-section of the first PE rod 22 can also be polygonal, which provides better support in wider seams.

[0042] In this embodiment, one end of the filler 23 is connected to the end of the first PE rod 22 away from the first sealing body 21, and the other end extends into the receiving cavity away from the joint opening to fill the remaining space of the receiving cavity; the filler 23 is fireproof rock wool, which has excellent fireproof and thermal insulation properties and is suitable for occasions requiring fireproof and heat insulation. In other embodiments, the filler 23 can also be polystyrene board, which has the characteristics of being lightweight, thermally insulating, and soundproof, and is suitable for sealing joints in ordinary buildings.

[0043] The implementation principle of Example 1 is as follows: a caulking device is prefabricated by filling the first sealing body 21, the first PE rod 22 and the filler 23 into the two structural plates 1 in sequence. When installing the caulking device in the joint, the dust and debris in the joint are first cleaned, and adhesive is applied to the side of the first straight part 11 away from the receiving cavity. Then, one end of the filler 23 of the caulking device is inserted into the joint with one end facing the depth of the joint, so that it is bonded in the joint, thus completing the filling treatment of the prefabricated component joint. This caulking device not only simplifies the processing steps of the prefabricated component joint, but also greatly improves the processing quality of the joint.

[0044] Example 2

[0045] Reference Figure 2The difference between this embodiment 2 and embodiment 1 is that the filling structure 2 further includes a second PE rod 24 and a second sealing body 25 disposed between the two structural plates 1; the first sealing body 21 has several protruding rib structures 3 on its two sides for abutting against the two side walls of the joint; a waterstop 4 is provided between the first sealing body 21 and the two structural plates 1 and between the first PE rod 22 and the filling body 23; a cover plate 5 is laid on the end face of the first sealing body 21 away from the first PE rod 22.

[0046] Specifically, in this embodiment, the second PE rod 24 is disposed within the receiving cavity parallel to the extension direction of the seam. The second PE rod 24 is connected to the side of the filler 23 opposite to the first PE rod 22, and the cross-section of the second PE rod 24 is circular. In other embodiments, the cross-section of the second PE rod 24 may also be polygonal.

[0047] In this embodiment, the second sealing body 25 is connected on one side of the second PE rod 24 away from the filler 23, and the other side extends to the end face of the structural plate 1 away from the first sealing body 21; the second sealing body 25 is MS sealant. In other embodiments, the second sealing body 25 may also be made of silicone sealant or polyurethane sealant, etc.

[0048] In this embodiment, the two first straight portions 11 of the two structural plates 1 are set at acute angles, with the narrow ends of the acute angles facing the second sealing body 25; the convex rib structure 3 is a protruding portion on the first sealing body 21, used to enhance the sealing performance when the first sealing body 21 abuts against the inner side of the joint; the extending direction of the convex rib structure 3 is parallel to the extending direction of the joint, and the cross-sectional shape of the convex rib structure 3 is rectangular. In other embodiments, the cross-sectional shape of the convex rib structure 3 can also be triangular, trapezoidal, or arc-shaped; a rectangular or trapezoidal convex rib structure 3 can provide uniform contact pressure and is suitable for flat joint surfaces; a triangular or arc-shaped convex rib structure 3 can provide a larger contact area and is suitable for irregular joint surfaces.

[0049] In this embodiment, the cover plate 5 is made of stainless steel, which further protects the first sealing body 21 from damage caused by the external environment; the waterstop 4 is made of rubber, which has good elasticity and weather resistance, further enhancing the sealing effect of the caulking device and preventing moisture penetration. In other embodiments, the cover plate 5 can also be made of aluminum alloy with good corrosion resistance or plastic with good shock absorption and cushioning; the waterstop 4 can be made of PVC with better anti-aging properties.

[0050] The advantages of Example 2 compared to Example 1 are as follows: by adding a second PE rod 24 and a second filler 23 to the filling structure 2, the overall rigidity and compressive strength of the filling structure 2 are enhanced, and the bottom of the joint is fully sealed, thus extending the service life of the caulking device; the design of the convex rib structure 3 enhances the sealing performance when the first sealing body 21 abuts against the inner wall of the joint; the cover plate 5 can prevent the external environment from damaging the first sealing body 21 and extend the service life of the first sealing body 21; the waterstop 4 further improves the sealing performance of the caulking device.

[0051] Example 3

[0052] Reference Figure 3 The difference between this embodiment 3 and embodiment 1 is that the structural plate 1 includes a second straight portion 12 and a bent portion 13.

[0053] Specifically, in this embodiment, the second straight portion 12 and the bent portion 13 can be made of stainless steel or aluminum alloy, both of which have high strength and corrosion resistance and can effectively resist the influence of the external environment; in other embodiments, the second straight portion 12 and the bent portion 13 can also be made of high-density polyethylene, which has good flexibility and impact resistance and is suitable for sealing joints under various complex working conditions.

[0054] The two second straight portions 12 of the two structural plates 1 are arranged in parallel. One end of the bent portion 13 is set at a right angle to one end of the second straight portion 12, and the other end of the bent portion 13 extends away from the filling structure 2. The first sealing body 21 extends to the two ends of the two bent portions 13 away from the second straight portions 12 to abut against the side walls of the joint. The design of the bent portion 13 allows the structural plate 1 to better adapt to the "T-shaped" joint, further reducing the risk of moisture penetration. In other embodiments, the angle and length of the bent portion 13 can be adjusted according to the actual joint conditions to achieve the best sealing effect.

[0055] The advantage of Example 3 compared to Example 2 is that by setting the structural plate 1 with the bending part 13, the adaptability and sealing performance of the caulking device are further improved; the design of the bending part 13 allows the structural plate 1 to be better bonded to the inner wall of the "T-shaped" joint or the joint with corners.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular prefabricated component caulking device, characterized in that: The structure includes at least two opposing structural plates (1) and a filling structure (2) disposed between the two structural plates (1). The two sides of the structural plates (1) away from the filling structure (2) are respectively used to bond with the two side walls of the joint of the precast component. The filling structure (2) includes a first sealing body (21), a first PE rod (22) and a filling body (23) connected in sequence. The end of the first sealing body (21) away from the first PE rod (22) extends to the end face of one end of the structural plate (1) and is used to abut against the two side walls at the joint opening. The filling structure (2) also includes a second PE rod (24) and a second sealing body (25) disposed between the two structural plates (1). The second PE rod (24) is connected to the side of the filling body (23) away from the first PE rod (22). One side of the second sealing body (25) is connected to the side of the second PE rod (24) away from the filling body (23), and the other side extends to the end face of the structural plate (1) away from the first sealing body (21).

2. The prefabricated modular finished product caulking device according to claim 1, characterized in that: The structural plate (1) includes a first straight portion (11), and the two first straight portions (11) of the two structural plates (1) are set at an acute angle with the narrow end of the acute angle facing the second sealing body (25).

3. The prefabricated modular finished product caulking device according to claim 1, characterized in that: The structural plate (1) includes a second straight portion (12) and a bent portion (13). The two second straight portions (12) of the two structural plates (1) are arranged in parallel. One end of the bent portion (13) is arranged at a right angle to one end of the second straight portion (12). The other end of the bent portion (13) extends in a direction away from the filling structure (2). The first sealing body (21) extends to the two ends of the two bent portions (13) away from the second straight portion (12) for abutting against the two side walls of the joint.

4. The prefabricated modular finished product caulking device according to claim 3, characterized in that: The first sealing body (21) has several protruding rib structures (3) on its two sides that abut against the two side walls of the joint, and the extension direction of the protruding rib structures (3) is parallel to the extension direction of the joint.

5. A prefabricated modular finished product caulking device according to claim 1, characterized in that: The cross-section of the first PE rod (22) and / or the second PE rod (24) is circular or polygonal; the first sealing body (21) and / or the second sealing body (25) is MS sealant.

6. The prefabricated modular finished product caulking device according to claim 1, characterized in that: A waterstop (4) is provided between the first sealing body (21) and the two structural plates (1) and between the first PE rod (22) and the filler (23).

7. The prefabricated modular finished product caulking device according to claim 1, characterized in that: A cover plate (5) is laid on the end face of the first sealing body (21) away from the first PE rod (22).

8. A prefabricated modular finished product caulking device according to claim 1, characterized in that: The filler (23) is fireproof rock wool or polystyrene board.

9. A prefabricated modular finished product caulking device according to claim 1, characterized in that: The overall cross-section of the caulking device is "I-shaped" or "T-shaped".

Citation Information

Patent Citations

  • A connection structure between a prefabricated steel structure and a precast concrete staircase and a platform beam.

    CN218814860U