Roof strainer suspended formwork grouting plugging construction device

By using a device that connects the bottom formwork and the hanging formwork components in the grouting construction of rainwater hoppers, the safety and quality problems of traditional methods are solved, and a highly efficient and safe grouting and sealing effect is achieved.

CN223893804UActive Publication Date: 2026-02-10MCC TIANGONG GROUP TIANJIN CO LTD
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Patent Information

Application Number
CN202520127682.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-10
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Traditional suspended formwork grouting sealing methods have problems such as insufficient safety, imperfect quality, poor aesthetics and high cost. In particular, in high-rise buildings, the risk of scaffolding is high and the steel wire is not tightly fixed, which leads to corrosion and grout leakage.

Method used

The construction device includes a bottom formwork, a first formwork component, and a second formwork component. The formwork is connected and secured by formwork rods. The height of the rainwater hopper is controlled by elevation components. The formwork components are made of galvanized material to improve stability and aesthetics. The formwork rods can be removed to ensure construction safety and quality.

Benefits of technology

It improves construction quality and aesthetics, reduces safety risks, saves costs and time, adapts to different construction needs, and avoids grout leakage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223893804U_ABST
    Figure CN223893804U_ABST
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Abstract

The utility model provides a roof drain suspended formwork grouting plugging construction device which comprises a bottom formwork, a first suspended formwork part and a second suspended formwork part, and the first suspended formwork part and the second suspended formwork part are located on the two sides of the bottom formwork respectively and connected through a suspended formwork rod penetrating through the bottom formwork. A bottom supporting plate used for supporting a roof drain is arranged in the second hanging mold piece, the bottom supporting plate is connected with the bottom mold plate through an elevation piece, and the elevation piece is used for controlling the installation height of the roof drain. The first hanging formwork and the second hanging formwork are connected and fastened through the hanging formwork rod penetrating through the roof drain so that the bottom formwork can abut against the bottom face of a floor, slurry leakage can be avoided, the hanging formwork rod can be completely dismantled after construction is completed, and the construction quality and the grouting attractiveness are improved; when the device is used for construction, a movable scaffold or a steel ladder does not need to be erected, and the safety of operators can be guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a rainwater hopper suspended formwork grouting and sealing construction device. Background Technology

[0002] Grouting and sealing of rainwater hopper suspended formwork refers to the process of grouting the lower suspended formwork after the rainwater hopper is installed. The grouting process includes: rainwater hopper installation - assembly of mobile scaffolding - suspended formwork - grouting - removal of suspended formwork.

[0003] Traditional suspended formwork grouting sealing methods have the following disadvantages:

[0004] (1) For roofs and platforms with excessively high floor heights, scaffolding or very tall ladders need to be erected when hoisting the formwork. If the scaffolding is too high, safety cannot be guaranteed, the quality of the hoisting formwork will be imperfect, and labor costs will increase.

[0005] (2) Using steel wire to fix the formwork of the hanging hole resulted in incomplete grouting and affected the appearance.

[0006] (3) After the steel wire is removed, some of it remains in the grout, which is prone to rust and corrosion. Utility Model Content

[0007] The purpose of this invention is to provide a rainwater hopper suspended formwork grouting and sealing construction device to solve the problems mentioned above.

[0008] The technical solution adopted in this utility model is: a rainwater hopper suspended formwork grouting and sealing construction device, which includes a bottom formwork, a first suspended formwork component and a second suspended formwork component. The first suspended formwork component and the second suspended formwork component are respectively located on both sides of the bottom formwork and are connected by a suspended formwork rod that passes through the bottom formwork. The second suspended formwork component is provided with a bottom support plate for supporting the rainwater hopper. The bottom support plate is connected to the bottom formwork through an elevation component, which is used to control the installation height of the rainwater hopper.

[0009] Furthermore, the first lifting formwork component includes a support leg and a lifting plate. The support leg is located between the lifting plate and the bottom template. The lifting plate is provided with a mounting hole, and the top end of the lifting rod passes through the mounting hole.

[0010] Furthermore, the lifting plate is provided with a screw sleeve, which is located on the outside of the mounting hole and is distributed along its axial direction at least once, for fixing the top end of the lifting rod.

[0011] Furthermore, the bottom support plate is provided with a second mounting hole, and the bottom end of the lifting rod passes through the second mounting hole.

[0012] Furthermore, the bottom support plate is provided with a second screw sleeve, which is located on the outside of the second mounting hole and is distributed along its axial direction at least once, for fixing the bottom end of the lifting rod.

[0013] Furthermore, the bottom template is provided with a third mounting hole for inserting the rainwater hopper, and the third mounting hole is coaxially arranged with the second mounting hole.

[0014] Furthermore, at least two of the elevation members are distributed circumferentially on the outer side of the mounting holes; at least one side of the elevation member is flush with the side of the base plate and is connected by stiffening ribs perpendicular to both.

[0015] The beneficial effects of this utility model are as follows: By connecting and securing the first and second formwork components through the formwork rod penetrating the rainwater hopper, the bottom formwork is pressed tightly against the bottom surface of the floor slab, which can prevent grout leakage. Moreover, the formwork rod can be completely removed after construction, improving construction quality and the aesthetics of grouting. Using this device, there is no need to erect mobile scaffolding or steel ladders, which can ensure the safety of workers. This device can be prefabricated according to construction needs, rainwater hopper specifications, etc., especially the pre-selection of elevation components, which can improve construction efficiency and save costs and time. Attached Figure Description

[0016] Figure 1 This is an external view of an embodiment of the present utility model;

[0017] Figure 2 This is a longitudinal sectional view of an embodiment of the present utility model.

[0018] In the picture:

[0019] 1. Lifting formwork component one; 11. Support leg; 12. Lifting plate; 121. Mounting hole one;

[0020] 2. Lifting formwork component two; 21. Base plate; 211. Mounting hole two; 22. Elevation component; 23. Stiffening rib;

[0021] 3. Bottom template; 31. Mounting hole three;

[0022] 4. Lifting rod;

[0023] 5. Rainwater hopper;

[0024] 6. Screw sleeve one;

[0025] 7. Screw sleeve two. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0028] Reference Appendix Figure 1-2 This embodiment provides a rainwater hopper suspended formwork grouting and sealing construction device, including a bottom formwork 3, a first suspended formwork component 1, a second suspended formwork component 2, and a suspended formwork rod 4. The first suspended formwork component 1 and the second suspended formwork component 2 are located on both sides of the bottom formwork 3, and the two are connected by the suspended formwork rod 4 that penetrates the bottom formwork 3. The second suspended formwork component 2 is provided with a bottom support plate 21 for supporting the rainwater hopper 5. The bottom support plate 21 is connected to the bottom formwork 3 through an elevation component 22, which is used to control the installation height of the rainwater hopper 5.

[0029] The formwork component 1 includes a support leg 11 and a lifting plate 12. The support leg 11 is located between the lifting plate 12 and the bottom template 3. The lifting plate 12 is provided with a first mounting hole 121, and the top end of the formwork rod 4 passes through the first mounting hole 121. The bottom support plate 21 is provided with a second mounting hole 211, and the bottom end of the formwork rod 4 passes through the second mounting hole 211. The bottom template 3 is provided with a third mounting hole 31 for inserting the rainwater hopper 5. The third mounting hole 31 is coaxially arranged with the second mounting hole 211.

[0030] When using the above-mentioned device for construction, firstly, fix the formwork component 1 to the floor slab to be grouted, with formwork component 1 corresponding to the installation opening of the rainwater hopper 5; place formwork component 2 on the floor slab below the floor slab to be grouted, then pass a temporary rope through the top of the floor slab to be grouted, connect the bottom end of the temporary rope to formwork component 2, pull the temporary rope to raise formwork component 2 to a position closer to the bottom of the floor slab to be grouted, extend the rainwater hopper 5 into the installation opening from the top of the floor slab to be grouted, and after its bottom end passes through the installation opening, continue to pull the temporary rope so that the bottom formwork 3 is fitted onto the outside of the rainwater hopper 5 until the top surface of the bottom formwork 3 is pressed against the bottom surface of the floor slab to be grouted, and after the formwork rod 4 passes through the rainwater hopper 5, connect and secure formwork component 1 and formwork component 2.

[0031] During the prefabrication of this device, the support leg 11 is fixedly connected to the hoisting plate 12, and the bottom formwork 3, elevation component 22, and bottom support plate 21 are fixedly connected. During the above construction, the support leg 11 can be welded or fixed to the floor slab using anchor bolts. Attention should also be paid to the coaxiality of the installation hole 121 and the installation opening, and the verticality of the hoisting rod 4, to ensure accurate center positioning and verticality of the rainwater hopper 5. To prevent grout leakage, after fixing the bottom formwork 3, the gap between the installation hole 31 and the outer wall of the rainwater pipe can be sealed with adhesive strips.

[0032] To facilitate the fixing of the formwork rod 4, a threaded rod can be selected as the formwork rod 4, and the mounting holes 121 and 211 can be configured as threaded holes. Alternatively, they can be configured as plain holes. A threaded sleeve 6 and a threaded sleeve 7 are respectively installed on the lifting plate 12 and the bottom support plate 21. To improve stability, at least one threaded sleeve 6 is distributed along the axial direction on the outer side of the mounting hole 121 to fix the top end of the formwork rod 4; at least one threaded sleeve 7 is distributed along the axial direction on the outer side of the mounting hole 211 to fix the bottom end of the formwork rod 4. By using the threaded sleeves 6, 7, and the formwork rod 4 to press the bottom formwork 3 against the bottom surface of the floor slab to be grouted, the probability of grout leakage can be reduced, and the grouting quality and overall appearance can be improved.

[0033] In this embodiment, the elevation component 22 can be a plate, constructed outside the mounting hole 31, with at least two distributed along its circumference; at least one side of the elevation component 22 is flush with the side of the bottom support plate 21, and is connected by stiffening ribs 23 perpendicular to both to improve connection stability. By pre-selecting the size of the elevation component 22, after the device is prefabricated and during construction, the bottom of the rainwater pipe can be inserted through the mounting hole 31 and placed directly on the bottom support plate 21. The height of the elevation component 22 is the distance between the bottom template 3 and the bottom support plate 21, and the sum of the thickness of the bottom template 3 and the height of the elevation component 22 is the length of the bottom of the rainwater pipe extending out of the bottom surface of the mounting hole. This improves the construction efficiency of suspended formwork grouting after the device is manufactured in a standardized manner.

[0034] In this embodiment, both the first lifting formwork component 1 and the second lifting formwork component 2 are made of galvanized material. Galvanized material has excellent corrosion resistance, high strength, good overall performance, excellent structural stability, and is recyclable, making it the preferred material for this device. Of course, in actual production, other materials can also be used, such as timber, formwork, or other composite materials, depending on the actual needs.

[0035] Compared with the prior art, the beneficial effects of this utility model include: by connecting and fastening the formwork component 1 and the formwork component 2 through the formwork rod 4 that passes through the rainwater hopper 5, the bottom formwork 3 is pressed tightly against the bottom surface of the floor slab, which can prevent grout leakage. Moreover, the formwork rod 4 can be completely removed after construction, improving the construction quality and the aesthetics of grouting. When using this device, there is no need to erect mobile scaffolding or steel ladders, which can ensure the safety of workers. This device can be prefabricated according to construction needs, the specifications of the rainwater hopper 5, etc., especially the pre-selected height of the elevation component 22, which can improve construction efficiency and save costs and time.

[0036] 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.

[0037] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rainwater hopper suspended formwork grouting and sealing construction device, characterized in that, It includes a bottom template, a first lifting template, and a second lifting template. The first and second lifting templates are located on both sides of the bottom template and are connected by a lifting rod that passes through the bottom template. The second lifting template is provided with a bottom support plate for supporting the rainwater hopper. The bottom support plate is connected to the bottom template by an elevation component, which is used to control the installation height of the rainwater hopper.

2. The rainwater hopper suspended formwork grouting and sealing construction device according to claim 1, characterized in that, The lifting formwork component includes a support leg and a lifting plate. The support leg is located between the lifting plate and the bottom template. The lifting plate is provided with a mounting hole, and the top end of the lifting rod passes through the mounting hole.

3. The rainwater hopper suspended formwork grouting and sealing construction device according to claim 2, characterized in that, The lifting plate is provided with a screw sleeve, which is located on the outside of the mounting hole and is distributed along its axial direction at least once, for fixing the top end of the lifting rod.

4. The rainwater hopper suspended formwork grouting and sealing construction device according to claim 1, characterized in that, The bottom support plate is provided with a second mounting hole, and the bottom end of the lifting rod passes through the second mounting hole.

5. The rainwater hopper suspended formwork grouting and sealing construction device according to claim 4, characterized in that, The bottom support plate is provided with a second screw sleeve. At least one second screw sleeve is distributed along the axial direction outside the second mounting hole, and is used to fix the bottom end of the lifting rod.

6. The rainwater hopper suspended formwork grouting and sealing construction device according to claim 4 or 5, characterized in that, The bottom template is provided with mounting hole three for inserting the rainwater hopper, and mounting hole three is coaxially arranged with mounting hole two.

7. The rainwater hopper suspended formwork grouting and sealing construction device according to claim 6, characterized in that, At least two elevation members are distributed circumferentially on the outer side of the mounting holes; at least one side of the elevation member is flush with the side of the base plate and is connected by stiffening ribs perpendicular to both.