Kitchen pipeline hanging hole pouring template construction device
By using a formwork construction device with a semi-circular annular retaining concrete plate and airbag components, the problem of needing to drill holes in existing technologies has been solved, achieving non-destructive construction and efficient sealing, reducing the burden on construction personnel and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 北京建工一建工程建设有限公司
- Filing Date
- 2026-03-23
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, when pouring concrete for kitchen pipe hoists, it is necessary to drill holes in the floor slab to fix the formwork, which increases the burden on construction workers and affects efficiency.
A formwork construction device consisting of two semi-circular concrete retaining plates, airbag components, and support components is used. The airbags provide vertical support through expansion, achieving stable sealing of the gaps between pipes and floor slabs without the need for drilling.
It enables non-destructive construction, reduces the burden on workers and improves construction efficiency, while the equipment can be reused, reducing costs.
Smart Images

Figure CN122129125A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building construction, and in particular to a formwork construction device for pouring concrete for hanging holes in kitchen pipes. Background Technology
[0002] A kitchen pipe hoisting hole refers to a hole pre-drilled or excavated in the kitchen floor slab for vertical pipes such as drainage pipes and water supply pipes to pass through. It is also called a "hanging formwork hole" or "pipe pre-reserved hole". After the drainage pipe or water supply pipe passes through the hoisting hole, concrete is poured into the floor slab to fix the pipe to the pipe.
[0003] Currently, before pouring concrete for floor slabs and pipes, formwork construction equipment is needed to support and seal the gaps at the bottom of the floor slab and pipes to prevent grout leakage. The formwork construction equipment in this technology typically includes two semi-circular concrete retaining plates. These two plates are spliced together and fitted onto the pipes, and then expansion bolts are used to fix the two retaining plates to the bottom of the floor slab, thus sealing the gap between the pipes and the floor slab.
[0004] However, fixing the concrete retaining slab to the floor slab with expansion bolts requires drilling holes in the floor slab beforehand, which damages the floor slab and requires subsequent repairs. This not only increases the burden on construction workers but also affects construction efficiency. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a formwork construction device for pouring holes for kitchen pipes, which eliminates the need for drilling holes in the floor slab, thereby reducing the workload of workers and improving construction efficiency.
[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a formwork construction device for pouring concrete for kitchen pipe hoists, comprising: Two concrete retaining slabs, each in the shape of a semi-circle; A limiting component is used to fix the two concrete retaining plates; An airbag assembly is disposed at the bottom of the two concrete retaining plates; The support assembly is connected at the top to the airbag assembly and at the bottom for contact and restraint with valves or joints on the pipeline.
[0007] Optionally, one end of the two concrete retaining plates is connected by a hinge, and the other end is fixed by the limiting member.
[0008] Optionally, the limiting member includes two limiting ear plates respectively fixed to the corresponding concrete retaining plate, and the two limiting ear plates are connected by fastening bolts.
[0009] Optionally, the bottom of each of the two concrete retaining plates is provided with a semi-circular sealing plate, and the two sealing plates can be joined together to form a sealing cylinder that tightly surrounds the pipe, and each sealing plate is provided with an elastic sealing sheet on its inner side.
[0010] Optionally, the airbag assembly includes: There are two supporting airbags, each in an arc shape; The guide tube is connected at both ends to the corresponding support airbags; An inflatable component is disposed on one of the supporting airbags; An exhaust nozzle is disposed on one of the support airbags.
[0011] Optionally, the inflation assembly includes: An inflation tube is connected to one of the support airbags; An inflatable balloon is connected to the inflation tube; A first one-way valve is disposed on the inflatable bladder and is used to restrict air from entering the inflatable bladder only from the outside; A second one-way valve is provided on the inflation tube and is used to restrict air from entering the support airbag only from the inflatable airbag.
[0012] Optionally, the bottom of each of the two concrete retaining plates is provided with a limiting groove for the corresponding supporting airbag to be inserted.
[0013] Optionally, the support component includes: Support clamps are used to wrap around and fix the pipe; There are two support plates, each in the shape of a semi-circle. The two sides of the two support plates are connected by locking bolts, and the two support plates are used to abut and limit the movement of valves or joints on the pipeline. There are multiple adjusting rods, with the top of each adjusting rod connected to the support clamp and the bottom of each adjusting rod connected to the corresponding support plate.
[0014] Optionally, the adjusting rod includes: The support tube is fixedly connected at its bottom to the corresponding support plate; The support rod is rotatably connected to the support clamp at the top and threadedly connected to the support pipe at the bottom. A drive nut is fixed to the support rod and is used to engage with an external wrench.
[0015] Optionally, the top of the support clamp is provided with an annular positioning groove, and the two support airbags can be respectively inserted into the positioning groove.
[0016] In summary, the present invention has at least the following beneficial effects: This template construction device can achieve stable support and sealing of the gap between the pipe and the floor slab without the need to drill holes in the floor slab, thus achieving non-destructive construction. It can also reduce the burden on workers and improve construction efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a schematic diagram illustrating the usage state of an embodiment; Figure 3 This is a schematic diagram of the concrete retaining plate in the embodiment; Figure 4 This is a schematic diagram of the airbag assembly in the embodiment; Figure 5 This is a schematic diagram of the supporting component in the embodiment.
[0018] Reference numerals: 1. Concrete retaining plate; 2. Limiting component; 21. Limiting ear plate; 22. Fastening bolt; 3. Airbag assembly; 31. Supporting airbag; 32. Conductor pipe; 33. Inflation assembly; 331. Inflation pipe; 332. Inflatable airbag; 333. First one-way valve; 334. Second one-way valve; 34. Exhaust nozzle; 4. Support assembly; 41. Support clamp; 42. Support plate; 43. Adjusting rod; 431. Support pipe; 432. Support rod; 433. Drive nut; 44. Locking bolt; 5. Sealing plate; 6. Sealing disc; 7. Limiting groove; 8. Positioning groove. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings.
[0020] Reference Figure 1 , Figure 2 A formwork construction device for pouring concrete for a kitchen pipe hole includes two semi-circular concrete retaining plates 1. The two concrete retaining plates 1 can tightly wrap around the pipe and press against the bottom of the floor slab. At the same time, the two concrete retaining plates 1 are fixed by limiting members 2.
[0021] Reference Figure 1 , Figure 2 The template construction device also includes an airbag assembly 3 and a support assembly 4. The airbag assembly 3 is located at the bottom of the two concrete retaining plates 1. The top of the support assembly 4 is connected to the airbag assembly 3, and the bottom is used to abut and limit the valves or joints on the pipeline.
[0022] When it is necessary to support and seal the gap between the pipe and the floor slab, the two concrete retaining plates 1 are fixed by the limiting member 2, and the two concrete retaining plates 1 are tightly pressed against the bottom of the floor slab. At the same time, the bottom of the support component 4 is pressed against the valve or joint on the pipe. Then, the airbag component 3 is controlled to inflate and expand, and the airbag component 3 is used to apply a vertical upward force to the concrete retaining plate 1 to ensure the sealing effect between the concrete retaining plate 1 and the floor slab.
[0023] This template construction device can achieve stable support and sealing of the gap between the pipe and the floor slab without the need to drill holes in the floor slab, thus achieving non-destructive construction. It can also reduce the burden on workers and improve construction efficiency.
[0024] Reference Figure 1 , Figure 3 Two concrete retaining plates 1 are connected at one end by a hinge and fixed at the other end by a limiting member 2. The limiting member 2 includes two limiting ear plates 21 respectively fixed on the corresponding concrete retaining plates 1, and the two limiting ear plates 21 are connected by fastening bolts 22 to achieve quick fixing of the two concrete retaining plates 1.
[0025] Reference Figure 1 , Figure 3 The bottom of each of the two concrete retaining plates 1 is provided with a semi-circular sealing plate 5. The two sealing plates 5 can be joined together to form a sealing cylinder that tightly surrounds the pipe. Each sealing plate 5 has an elastic sealing sheet 6 on its inner side to improve the sealing effect between the concrete retaining plate 1 and the pipe and reduce the risk of grout leakage.
[0026] Reference Figure 1 , Figure 4 The airbag assembly 3 includes two arc-shaped support airbags 31, with one side of the two support airbags 31 connected by a guide tube 32 and the other side connected by a limiting buckle. At the same time, each support airbag 31 is provided with an inflation assembly 33 and an exhaust nozzle 34.
[0027] Reference Figure 4 The inflation assembly 33 includes an inflation tube 331, an inflation bladder 332, a first one-way valve 333, and a second one-way valve 334. The inflation tube 331 is connected to one of the supporting air bladders 31, and the inflation bladder 332 is connected to the inflation tube 331. The first one-way valve 333 is disposed on the inflation bladder 332 and is used to restrict air from entering the inflation bladder 332 only from the outside. The second one-way valve 334 is disposed on the inflation tube 331 and is used to restrict air from entering the supporting air bladder 31 only from the inflation bladder 332.
[0028] When the inflatable balloons 332 are squeezed, the air inside the balloons 332 enters the support balloons 31 through the inflation tubes 331. When the inflatable balloons 332 are released, outside air enters the balloons 332. This process is repeated until the two support balloons 31 inflate, thus achieving the support and limiting of the concrete retaining plate 1.
[0029] In this embodiment, two support airbags 31 surround the sealing cylinder formed by two sealing plates 5, and the outer sides of the two sealing plates 5 are respectively provided with anti-slip rubber layers to improve the friction between the support airbags 31 and the sealing plates 5, thereby improving the support effect of the support airbags 31 on the concrete retaining plate 1.
[0030] Reference Figure 3 , Figure 4 The bottom of each of the two concrete retaining plates 1 is provided with a limiting groove 7 for the corresponding support airbag 31 to be inserted into, so as to improve the limiting connection effect between the support airbag 31 and the concrete retaining plate 1, so that the support airbag 31 can provide stable support force in the vertical direction to the concrete retaining plate 1.
[0031] Reference Figure 1 , Figure 5 The support assembly 4 includes a support clamp 41, two support plates 42, and multiple adjusting rods 43. The support clamp 41 is used to tightly wrap around the pipe. The two support plates 42 are each semi-circular, and their sides are connected by locking bolts 44 to fix them in place. The two support plates 42 are also used to abut and limit the movement of valves or joints on the pipe. The tops of the multiple adjusting rods 43 are connected to the support clamp 41, and their bottoms are connected to the corresponding support plates 42.
[0032] Reference Figure 5 The adjusting rod 43 includes a support tube 431, a support rod 432, and a drive nut 433. The bottom of the support tube 431 is fixedly connected to the corresponding support plate 42. The top of the support rod 432 is rotatably connected to the support clamp 41, and the bottom is threadedly connected to the support tube 431. The drive nut 433 is fixed to the support rod 432 and is used to cooperate with an external wrench to facilitate quick adjustment of the length of the adjusting rod 43 by the operator.
[0033] Reference Figure 5 The top of the support clamp 41 is provided with an annular positioning groove 8, and the two support airbags 31 can be respectively inserted into the positioning groove 8 to improve the limiting effect between the support clamp 41 and the support airbags 31, thereby achieving stable support of the support airbags 31.
[0034] The method of using the template construction device in this embodiment is as follows: S1, the two concrete retaining plates 1 are pressed against the floor slab respectively, and then the two concrete retaining plates 1 are fixed by the limiting piece 2 so that the two concrete retaining plates 1 and the two sealing plates 5 respectively hug the pipe.
[0035] S2, place the two support plates 42 against the valves or joints of the pipeline respectively, and then fix the two sides of the two support plates 42 with locking bolts 44 respectively, so that the two support plates 42 hug the pipeline tightly.
[0036] S3, place the two support airbags 31 between the support clamp 41 and the concrete retaining plate 1.
[0037] S4. Adjust the length of the adjusting rod 43 so that the support clamp 41 reaches the preset position, and then tighten the bolts on the support clamp 41 so that the support clamp 41 grips the pipe.
[0038] S5, inflate the two support airbags 31 through the inflation component 33 until the two support airbags 31 expand and abut against the concrete retaining plate 1 and the support clamp 41 respectively.
[0039] S6, Concrete pouring operation for pipes and floor slabs.
[0040] S7, dismantle the formwork construction device.
[0041] As described above, this formwork construction device can achieve stable support and sealing of the gaps between pipes and floor slabs. It is not only easy to operate but also eliminates the need for drilling into the floor slab, achieving non-destructive construction. Furthermore, the device is easy to install and operate, reducing the workload of workers and improving construction efficiency. Moreover, the formwork construction device can be reused, effectively reducing costs.
[0042] The specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A formwork construction device for pouring concrete for hanging holes in kitchen pipes, characterized in that, include: Concrete retaining slabs (1), two in number, each in the shape of a semi-circular ring; Limiting element (2) is used to fix the two concrete retaining plates (1); An airbag assembly (3) is disposed at the bottom of the two concrete retaining plates (1); The support component (4) is connected at the top to the airbag component (3) and at the bottom to abut and limit the contact with a valve or joint on the pipeline.
2. The formwork construction device for pouring concrete for kitchen pipe hoists according to claim 1, characterized in that, One end of the two concrete retaining plates (1) is connected by a hinge, and the other end is fixed by the limiting member (2).
3. The formwork construction device for pouring concrete for kitchen pipe hoists according to claim 2, characterized in that, The limiting member (2) includes two limiting ear plates (21) respectively fixed on the corresponding concrete retaining plate (1), and the two limiting ear plates (21) are connected by fastening bolts (22).
4. The formwork construction device for pouring concrete for kitchen pipe hoists according to claim 1, characterized in that, The bottom of each of the two concrete retaining plates (1) is provided with a semi-circular sealing plate (5), and the two sealing plates (5) can be joined together to form a sealing cylinder that tightly surrounds the pipe, and each sealing plate (5) is provided with an elastic sealing sheet (6) on its inner side.
5. A formwork construction device for pouring concrete for kitchen pipe hoists according to claim 1, characterized in that, The airbag assembly (3) includes: Support airbags (31), two in number, each in an arc shape; The guide tube (32) is connected at both ends to the corresponding support airbags (31); An inflatable assembly (33) is disposed on one of the support airbags (31); An exhaust nozzle (34) is disposed on one of the support airbags (31).
6. A formwork construction device for pouring concrete for kitchen pipe hoists according to claim 5, characterized in that, The inflation assembly (33) includes: An inflation tube (331) is connected to one of the support airbags (31); An inflatable balloon (332) is connected to the inflation tube (331); A first one-way valve (333) is disposed on the inflatable bladder (332) and is used to restrict air from entering the inflatable bladder (332) only from the outside; A second one-way valve (334) is provided on the inflation tube (331) and is used to restrict air from entering the support airbag (31) only from the inflation airbag (332).
7. A formwork construction device for pouring concrete for kitchen pipe hoists according to claim 5, characterized in that, The bottom of each of the two concrete retaining plates (1) is provided with a limiting groove (7) for the corresponding supporting airbag (31) to be inserted.
8. A formwork construction device for pouring concrete for kitchen pipe hoists according to claim 5, characterized in that, The support component (4) includes: Support clamp (41) is used to wrap around and fix it to the pipe; There are two support plates (42), each in the shape of a semi-circular ring. The two sides of the two support plates (42) are connected by locking bolts (44), and the two support plates (42) are respectively used to abut and limit the valves or joints on the pipeline. There are multiple adjusting rods (43), with the top of each adjusting rod (43) connected to the support clamp (41) and the bottom of each adjusting rod (43) connected to the corresponding support plate (42).
9. A formwork construction device for pouring concrete for kitchen pipe hoists according to claim 8, characterized in that, The adjusting rod (43) includes: The bottom of the support tube (431) is fixedly connected to the corresponding support plate (42); The support rod (432) is rotatably connected to the support clamp (41) at the top and threadedly connected to the support tube (431) at the bottom; The drive nut (433) is fixed to the support rod (432) and is used to cooperate with an external wrench.
10. A formwork construction device for pouring concrete for kitchen pipe hoists according to claim 8, characterized in that, The top of the support clamp (41) is provided with an annular positioning groove (8), and the two support airbags (31) can be respectively inserted into the positioning groove (8).