Floor vertical pipe well horizontal plugging formwork supporting device
By using the triangular structure and bolt connection design of the formwork components, the problems of inconvenient assembly and disassembly and insufficient strength of existing formwork devices are solved, achieving efficient and safe sealing of vertical pipe shafts on floors, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU NO 1 CONSTR ENG
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-02
Smart Images
Figure CN224314577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vertical pipe well sealing, specifically a horizontal sealing support device for vertical pipe wells in a building. Background Technology
[0002] Vertical pipe shafts are structures in high-rise buildings used for the centralized installation of vertical equipment pipelines. These shafts are vertical reinforced concrete shafts where water supply, power supply, drainage, and smoke exhaust pipes are centrally installed. They are commonly found in high-rise public buildings and residential buildings. To facilitate horizontal sealing, formwork devices are required. The "Formwork Device for Reserved Pipe Openings" disclosed in application number "202320907263.5" is an increasingly mature technology, characterized by its "simple structure, lightweight, and portability. It allows for the phased use of reserved pipe openings on-site. Furthermore, this utility model has a safe and stable structure and is easy to operate." Therefore, this utility model improves the sealing quality of reserved vertical openings while minimizing construction costs and ensuring long-term usability. This is described as an economical, safe, durable, and versatile new type of pre-reserved pipe opening formwork device. However, this formwork device still has the following drawbacks during use: While it can indeed seal vertical pipe shafts by using the pre-reserved pipes in conjunction with the first and second formwork structures, the floor slabs of the pipe shafts in this high-rise building are post-cast slabs. The original construction process involved erecting formwork scaffolding for the pipe shaft, and then dismantling the scaffolding after each floor slab was poured. This process was time-consuming and labor-intensive. Therefore, it is necessary to provide a formwork device that is easy to assemble and dismantle quickly and improves ease of use. In addition, the overall structure of this formwork device is simple, so the overall structural strength needs to be improved. Therefore, it is necessary to provide a formwork device that can significantly improve the overall strength and enhance practicality. Utility Model Content
[0003] This utility model provides a formwork support device for horizontal sealing of vertical pipe shafts in a building, aiming to solve the problems of inconvenient assembly, disassembly, and use of existing formwork support devices, as well as the need to improve the overall structural strength.
[0004] To achieve the above objectives, this utility model provides a formwork support device for horizontal sealing of vertical pipe shafts in a floor, including a formwork support assembly;
[0005] The formwork assembly includes a fire-fighting pipe. A movable steel sleeve is fitted onto the side surface of the fire-fighting pipe. Several first square tubes are detachably installed in a circular array on the side surface of the movable steel sleeve. Each of the first square tubes and the movable steel sleeve is hinged with a first square tube. A second square tube is movably inserted into the interior of each of the first square tubes. A third square tube is hinged to both sides of the movable steel sleeve and between two of the second square tubes. A fourth square tube is inserted into the interior of the third square tube. Lifting lugs are fixedly connected to both sides of the movable steel sleeve. Lifting lugs are fixedly connected to the lower ends of two of the second square tubes. The ends of the second, third, and fourth square tubes are connected through lifting lugs. A movable square tube hinge is fitted onto the side surface of the movable steel sleeve.
[0006] As a preferred embodiment of this utility model, a number of first square tubes and movable steel sleeves are threaded with first bolts inside, and a number of screw holes are equally spaced on the surfaces of the first square tubes and second square tubes, as well as the third and fourth square tubes, and a second bolt is threaded inside one of the screw holes.
[0007] As a preferred embodiment of this utility model, the upper ends of the fire-fighting pipe and several first square tubes and second square tubes are equipped with wooden beams, and the upper ends of the wooden beams are provided with post-cast floor slabs.
[0008] As a preferred embodiment of this utility model, the lifting lug, the second square tube, the third square tube, and the fourth square tube are all internally threaded with a third bolt.
[0009] As a preferred embodiment of this utility model, the end of the second square tube is provided with a water pipe well sidewall, and the formwork assembly is installed inside the water pipe well sidewall.
[0010] As a preferred embodiment of this utility model, the first square tube, the second square tube, the third square tube, and the fourth square tube are all galvanized square tubes.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. When using the formwork support device, the manhole pipe is wrapped with a movable steel sleeve, forming a triangular structure with the surrounding horizontal first, second, third, and fourth square tubes. This stabilizes and enhances the load-bearing capacity, thus forming a support for the manhole floor slab formwork. The dimensions are controlled by the expansion and contraction of the first, second, third, and fourth square tubes. Simultaneously, the second bolts are threaded into the bolt holes at different positions, achieving universal applicability for various manhole floor slab formwork. It is simple to operate, easy to assemble and disassemble, and can be reused multiple times. Compared to the ground-mounted scaffolding formwork method for manholes, this utility model is compact and lightweight. This invention eliminates the cumbersome process of erecting scaffolding from the support surface all the way to the shaft, significantly reducing the input of steel pipe materials and workers. It also facilitates easy erection and dismantling, thus saving construction time. Compared to the sealing structure in the existing "a pre-reserved pipe opening formwork device," this invention allows for parallel construction of each floor slab formwork without interference, greatly improving the flexibility of construction deployment. It also eliminates on-site environmental pollution during scaffolding erection and dismantling, thus significantly improving the ease of erection and dismantling of the formwork device and the overall structural safety. Attached Figure Description
[0013] Figure 1 This is a top view of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the formwork support component of this utility model;
[0015] Figure 3 This is a schematic diagram of the built-in structure of the formwork support component of this utility model;
[0016] Figure 4 This is a schematic diagram of the square tube structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the first square tube and the second square tube in this utility model.
[0018] In the diagram: 100, formwork assembly; 101, fire-fighting pipe; 102, movable steel sleeve; 103, first square tube; 104, second square tube; 105, third square tube; 106, fourth square tube; 107, lifting lug; 108, square tube hinge; 111, first bolt; 112, second bolt; 121, post-cast floor slab; 122, timber; 131, third bolt; 141, water pipe well sidewall. Detailed Implementation
[0019] 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.
[0020] Example 1
[0021] Please see Figures 1-4 This utility model provides a horizontal sealing support device for vertical pipe shafts in a floor, including a support assembly 100;
[0022] The formwork assembly 100 includes a fire pipe 101. A movable steel sleeve 102 is fitted onto the side surface of the fire pipe 101. Several first square tubes 103 are detachably and equidistantly installed in a circular array on the side surface of the movable steel sleeve 102. Each of the first square tubes 103 and the movable steel sleeve 102 is hinged together with a first square tube 103. Second square tubes 104 are movably inserted into the interior of each of the first square tubes 103. The movable steel sleeve 102 has two square tubes on its sides and two of them... Each of the second square tubes 104 is hinged with a third square tube 105. A fourth square tube 106 is inserted into the inside of the third square tube 105. Lifting lugs 107 are fixedly connected to both sides of the movable steel sleeve 102. The lower ends of the two second square tubes 104 are fixedly connected with lifting lugs 107. The ends of the second square tubes 104, the third square tubes 105 and the fourth square tube 106 are connected through lifting lugs 107. A square tube movable hinge 108 is fitted on the side surface of the movable steel sleeve 102.
[0023] In one specific embodiment, the triangular structure formed by the formwork support components 100 not only significantly enhances the overall compressive strength of the formwork support device and improves its safety, but also facilitates rapid assembly and disassembly of the formwork support device through the cooperation of the above structures, thereby improving the ease of assembly and disassembly of the formwork support device. In use, the fire-fighting pipe 101 is wrapped by the movable steel sleeve 102, forming a triangular structure with the surrounding horizontal first square tube 103, second square tube 104, third square tube 105, and fourth square tube 106, which stably enhances the load-bearing performance, thus forming the formwork support for the post-cast floor slab 121. The first square tube 103, second square tube 104, and third square tube 105 form the formwork support. 4. The telescopic control dimensions of the third-party tube 105 and the fourth-party tube 106 are controlled by connecting the second bolt 112 to the screw holes in different positions, thereby achieving universality for various pipe shaft floor slab formwork. At the same time, this formwork device is simple to operate, easy to assemble and disassemble, and can be reused multiple times. Compared with the ground-mounted scaffolding formwork method for pipe shafts, this utility model is small and lightweight, changing the cumbersome process of erecting scaffolding from the support surface of the shaft. It can not only greatly reduce the input of steel pipe materials and the input of operators, but also save the construction period of scaffolding erection and disassembly, thus significantly improving the convenience of assembling, disassembling and reuse of the formwork device.
[0024] Please see Figures 1-5 Several first square tubes 103 and movable steel sleeves 102 are threaded with first bolts 111. Several screw holes are equally spaced on the surfaces of the first square tubes 103 and second square tubes 104, as well as the third square tubes 105 and the fourth square tubes 106. A second bolt 112 is threaded inside one of the screw holes.
[0025] In one specific embodiment, the first bolt 111 can enhance the connection strength between the first square tube 103 and the movable steel sleeve 102, and the second bolt 112 can enhance the connection strength and ease of assembly and disassembly between the first square tube 103 and the second square tube 104, as well as between the third square tube 105 and the fourth square tube 106.
[0026] Please see Figures 1-5 The upper ends of the fire pipe 101 and several first square tubes 103 and second square tubes 104 are equipped with wooden beams 122, and the upper ends of the wooden beams 122 are provided with post-cast floor slabs 121.
[0027] In one specific embodiment, the timber 122, in conjunction with the post-cast floor slab 121, can improve the sealing strength of the vertical manhole and enhance the practicality of the formwork support device.
[0028] Please see Figures 1-5 The internal threads of the lifting lug 107, the second square tube 104, the third square tube 105, and the fourth square tube 106 are all connected to a third bolt 131.
[0029] In one specific embodiment, the third bolt 131 can enhance the connection strength between the lifting lug 107, the second square tube 104, the third square tube 105 and the fourth square tube 106. After the third bolt 131 is removed, the above structure can be disassembled.
[0030] Please see Figures 1-5 The end of the second square tube 104 is provided with a water pipe well sidewall 141, and the formwork assembly 100 is installed inside the water pipe well sidewall 141.
[0031] In one specific embodiment, the water pipe well sidewall 141 and the formwork assembly 100 are top-supported, thereby enhancing the support strength of the post-cast floor slab 121 and improving the sealing effect.
[0032] Please see Figures 1-5 The first square tube 103, the second square tube 104, the third square tube 105, and the fourth square tube 106 are all galvanized square tubes.
[0033] In one specific embodiment, the use of galvanized square tubes 103, 104, 105, and 106 can prevent rust and extend the service life of the above structure.
[0034] Working principle: In use, the fire pipe 101 is wrapped by the movable steel sleeve 102, forming a triangular structure with the surrounding horizontal first square tube 103, second square tube 104, third square tube 105, and fourth square tube 106. This stabilizes and enhances the load-bearing performance, forming a formwork support for the post-cast floor slab 121. The dimensions are controlled by the expansion joints of the first square tube 103, second square tube 104, third square tube 105, and fourth square tube 106. At the same time, the second bolt 112 is threaded into the bolt holes at different positions, thus achieving universality for various pipe shaft floor slab formwork. This formwork device is simple to operate, easy to assemble and disassemble, and can be reused multiple times. Compared with the ground-mounted scaffolding formwork method for pipe shafts, this utility model is small and lightweight, changing the cumbersome process of erecting scaffolding from the support surface of the shaft. It can not only significantly reduce the input of steel pipe materials and the input of operators, but also save the construction period of scaffolding erection and disassembly, thus significantly improving the convenience of assembling, disassembling, and reuse of the formwork device.
[0035] 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.
[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.
Claims
1. A formwork support device for horizontal sealing of vertical pipe shafts in a building, characterized in that, include: A formwork support assembly (100) includes a fire-fighting pipe (101). A movable steel sleeve (102) is fitted onto the side surface of the fire-fighting pipe (101). A plurality of first square tubes (103) are detachably and equidistantly installed in a circular array on the side surface of the movable steel sleeve (102). Each of the first square tubes (103) and the movable steel sleeve (102) is hinged together with a first square tube (103). A second square tube (104) is movably inserted into the interior of each of the first square tubes (103). The movable steel sleeve (102) has its sides and its... A third square tube (105) is hinged between each of the two second square tubes (104). A fourth square tube (106) is inserted into the interior of the third square tube (105). Lifting lugs (107) are fixedly connected to both sides of the movable steel sleeve (102). Lifting lugs (107) are fixedly connected to the lower ends of the two second square tubes (104). The ends of the second square tube (104), the third square tube (105), and the fourth square tube (106) are connected through the lifting lugs (107). A square tube movable hinge (108) is fitted on the side surface of the movable steel sleeve (102).
2. The formwork support device for horizontal sealing of vertical pipe shafts in a building according to claim 1, characterized in that: The interior of several first square tubes (103) and movable steel sleeves (102) is threaded with first bolts (111). Several screw holes are equally spaced on the surfaces of the first square tubes (103) and second square tubes (104), as well as the third square tubes (105) and the fourth square tubes (106). A second bolt (112) is threaded inside one of the screw holes.
3. The formwork support device for horizontal sealing of vertical pipe shafts in a building according to claim 1, characterized in that: The upper ends of the fire pipe (101) and several first square tubes (103) and second square tubes (104) are equipped with wooden beams (122), and the upper ends of the wooden beams (122) are provided with post-cast floor slabs (121).
4. The formwork support device for horizontal sealing of vertical pipe shafts in a floor according to claim 1, characterized in that: The lifting lug (107), the second square tube (104), the third square tube (105), and the fourth square tube (106) are all internally threaded with a third bolt (131).
5. A formwork support device for horizontal sealing of vertical pipe shafts in a building according to claim 1, characterized in that: The end of the second square tube (104) is provided with a water pipe well sidewall (141), and the formwork assembly (100) is installed inside the water pipe well sidewall (141).
6. A formwork support device for horizontal sealing of vertical pipe shafts in a building according to claim 1, characterized in that: The first square tube (103), the second square tube (104), the third square tube (105), and the fourth square tube (106) are all galvanized square tubes.