Formwork assembly for flue hanging hole and reverse ridge integrated pouring

Abstract

The utility model discloses a template assembly for integrated pouring of a flue hanging hole and a reverse ridge, which comprises an upper template, a pre-buried positioning plate and a lower template which are sequentially arranged in parallel from top to bottom, the pre-embedded positioning plate is used for being pre-embedded in a floor slab during use, and a threaded sleeve is fixedly arranged at a set position on the pre-embedded positioning plate; the upper formwork is used for being attached to the top face of a floor when used, an upper side blocking part extending upwards is arranged on the edge of the side, close to the finished flue, of the upper formwork, and the upper side blocking part is used for defining a pouring space of a reverse ridge with a wall and the finished flue; the lower formwork is used for being attached to the bottom face of a floor slab when used, and a pouring space for filling the hanging hole reserved hole is defined by the lower formwork, the upper formwork, the floor slab, the wall and the finished flue. The upper template is fixedly connected with the threaded sleeve through the upper fastener; the lower template is fixedly connected with the threaded sleeve through the lower fastener; and the construction quality and the construction efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of formwork design technology in building construction, specifically to a formwork component for integrated casting of flue openings and retaining walls. Background Technology

[0002] In building decoration and renovation projects, the flue duct opening is a process that is poured separately from the main structural concrete. The quality of the formwork installation directly affects the quality of the concrete pouring in the opening. The currently used traditional wooden formwork installation method has many problems: the stability of the formwork is difficult to guarantee, leading to quality defects such as honeycomb, pitting, and water seepage during later concrete pouring; the formwork installation process is cumbersome and inefficient; furthermore, traditional flue construction requires secondary pouring of the opening and the curb separately, which not only necessitates repeated formwork installation but also increases the construction period and cost. These problems seriously affect the overall construction quality and project progress of the flue structure.

[0003] Therefore, it is necessary to manufacture a formwork assembly for the construction of flue duct openings and retaining walls, so as to improve the construction efficiency of openings and retaining walls and ensure the quality of concrete pouring for flue duct openings and retaining walls. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a template assembly for the integrated casting of flue duct openings and retaining walls. By using this template assembly, the construction efficiency of the openings and retaining walls can be improved, and the concrete casting quality of the flue duct openings and retaining walls can be guaranteed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a template assembly for integrated casting of flue duct openings and curbs, comprising an upper template, a pre-embedded positioning plate, and a lower template arranged in parallel from top to bottom; the pre-embedded positioning plate is used to be pre-embedded in the floor slab during use, and a threaded sleeve is fixed at a predetermined position on the pre-embedded positioning plate; the upper template is used to fit against the top surface of the floor slab during use, and the edge of the upper template near the finished flue is provided with an upwardly extending upper side stop, which is used to define the casting space of the curb with the wall and the finished flue; the lower template is used to fit against the bottom surface of the floor slab during use, and defines the casting space for filling the reserved hole of the flue opening with the upper template, the floor slab, the wall, and the finished flue; an upper fastener is used to fix the upper template to the threaded sleeve; a lower fastener is used to fix the lower template to the threaded sleeve.

[0006] Furthermore, the threaded sleeve has a central sealing section.

[0007] Furthermore, the threaded sleeve is configured in multiple ways along the length extension direction of the pre-embedded positioning plate.

[0008] Furthermore, the upper template has a pre-set upper connecting hole arranged opposite to the threaded sleeve, and the upper fastener passes through the connecting hole and is threadedly connected to the threaded sleeve.

[0009] Furthermore, the lower template has a pre-set lower connecting hole arranged opposite to the threaded sleeve, and the lower fastener passes through the connecting hole and is threadedly connected to the threaded sleeve.

[0010] Furthermore, the upper template, the embedded positioning plate, and the lower template are all L-shaped metal plates.

[0011] Furthermore, the upper template has upwardly extending upper extensions at both ends along its length extension direction, and the upper extensions are provided with water-swellable waterstop strips.

[0012] Furthermore, the lower template has downwardly extending lower extensions at both ends along its length extension direction, and the lower extensions are provided with water-swellable waterstop strips.

[0013] The beneficial effects of this utility model are as follows:

[0014] The template assembly for integrated casting of flue openings and curbs provided by this utility model, through the cooperative structure of upper template, pre-embedded positioning plate and lower template, and the use of threaded sleeves and fasteners to achieve stable fixing of the template, can realize the integrated casting and forming of the openings and curbs. It has the advantages of improving the stability of template installation, ensuring the quality of casting, and simplifying the construction process.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an isometric structure according to an embodiment of the present invention.

[0017] Reference numerals: 1-Upper template; 101-Upper side stop; 102-Upper fastener; 103-Washer; 104-Upper extension; 2-Embedded positioning plate; 201-Threaded sleeve; 3-Lower template; 301-Lower extension; 302-Lower fastener; 4-Water-swellable rubber waterstop strip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figure 1 This embodiment discloses a template assembly for integrated casting of flue duct openings and curbs, including an upper template 1, a pre-embedded positioning plate 2, and a lower template 3 arranged in parallel from top to bottom; the pre-embedded positioning plate 2 is used to be pre-embedded in the floor slab during use, and a threaded sleeve 201 is fixed at a set position on the pre-embedded positioning plate 2; the upper template 1 is used to fit against the top surface of the floor slab during use, and the edge of the upper template 1 near the finished flue is provided with an upwardly extending upper side baffle 101, which is used to define the casting space of the curb with the wall and the finished flue; the lower template 3 is used to fit against the bottom surface of the floor slab during use, and defines the casting space for filling the reserved hole of the flue opening with the upper template 1, the floor slab, the wall, and the finished flue; an upper fastener 102 is used to fix the upper template 1 to the threaded sleeve 201; a lower fastener 302 is used to fix the lower template 3 to the threaded sleeve 201.

[0020] Specifically, the embedded positioning plate 2 can be made of steel plate or other materials with sufficient strength, and its thickness can be adjusted according to actual needs. The threaded sleeve 201 can be welded or fixed to the embedded positioning plate 2 by other means. The number and arrangement of the threaded sleeves 201 can be designed according to the size and stress conditions of the template assembly. It is understood that during design, the length of the threaded sleeve 201 is designed to be equal to the thickness of the floor slab, so that after the floor slab is poured, both ends of the threaded sleeve 201 are flush with the top and bottom surfaces of the floor slab, respectively; during floor slab pouring, both ends of the threaded sleeve 201 can be temporarily sealed with tape. The upper template 1 and lower template 3 can be made of metal plates or composite material plates, and their shape and size can be adjusted according to the specific structure of the flue and wall. The upper side stop 101 can be integrally formed with the upper template 1 or connected by welding or other means. The upper fastener 102 and lower fastener 302 can be bolts. It is understandable that the height of the upper baffle 101 is the same as the height of the inverted curb to be poured, and the horizontal distance between the upper baffle 101 and the side wall of the finished flue during pouring is the same as the width of the inverted curb.

[0021] This template assembly, through the pre-embedded positioning plate 2 and threaded sleeve 201, enables the rapid installation and fixation of the upper template 1 and lower template 3, avoiding the instability problems of traditional wooden formwork installation. Simultaneously, the cooperation between the upper side stop 101 of the upper template 1 and the lower template 3 can simultaneously form the pouring space for the retaining wall and the hanging hole, reducing the number of template installations and improving construction efficiency. This technical solution solves the problems of unstable template fixation and low construction efficiency in traditional flue construction, effectively ensuring the concrete pouring quality of the flue hanging hole and retaining wall.

[0022] In this embodiment, the threaded sleeve 201 is sealed at the middle. The sealing of the middle of the threaded sleeve 201 can be achieved by welding, stamping, or using a threaded plug. Welding involves circumferential welding at the middle of the sleeve to form a closed end; stamping involves directly stamping the closed end during sleeve forming; and using a threaded plug involves machining an internal thread in the middle of the sleeve and screwing in a plug. Welding offers high structural strength, while stamping is simple and low-cost. Specifically, after the hoisting hole and the curb are poured, the upper opening of the threaded sleeve 201 needs to be sealed. The design of sealing the middle of the threaded sleeve 201 effectively prevents leakage of the floor slab later, eliminating the need for additional waterproofing measures at the threaded sleeve 201.

[0023] In this embodiment, multiple threaded sleeves 201 are provided along the length of the embedded positioning plate 2. Specifically, multiple threaded sleeves 201 are arranged at intervals along the length of the embedded positioning plate 2, and the spacing between adjacent threaded sleeves 201 can be adjusted according to actual construction needs. As a preferred embodiment, the threaded sleeves 201 are arranged at equal intervals. The threaded sleeves 201 can be fixed to the embedded positioning plate 2 by welding or mechanical connection, wherein welding must ensure that the weld is full and free of slag. The internal thread specification of the threaded sleeve 201 must match the external threads of the upper fastener 102 and the lower fastener 302, and M12 or M14 standard threads are usually selected.

[0024] Therefore, by setting multiple threaded sleeves 201, multi-point fixing of the upper formwork 1 and lower formwork 3 can be achieved, effectively enhancing the overall stability of the formwork assembly. During concrete pouring, multi-point fixing can evenly distribute the lateral pressure borne by the formwork, preventing local deformation or displacement. Compared with single-point fixing, this structure significantly improves the deformation resistance of the formwork, ensuring the concrete forming quality of the lifting holes and retaining walls. At the same time, multiple connection points make formwork installation more convenient, allowing construction personnel to flexibly choose the fastening position according to the site conditions, improving construction efficiency.

[0025] In this embodiment, the upper template 1 has a pre-set upper connecting hole arranged opposite to the threaded sleeve 201. The upper fastener 102 passes through the connecting hole and is threadedly connected to the threaded sleeve 201. The specific arrangement of the upper connecting hole can be implemented as follows: the upper connecting hole is a through hole structure, and the hole diameter is slightly larger than the outer diameter of the upper fastener 102 to ensure assembly tolerance; the position of the upper connecting hole is determined by measurement and then formed by stamping; a reinforcing ring can be set on the edge of the upper connecting hole to improve the structural strength of the hole. The implementation of the threaded connection includes: the upper fastener 102 is an external threaded bolt, and the threaded sleeve 201 is an internal thread structure. The two are axially fixed by rotational engagement. In a preferred embodiment, a washer 103 can be set between the upper fastener 102 and the upper template 1.

[0026] This technical solution achieves rapid positioning and installation by pre-setting connection holes in the upper template 1 that are precisely aligned with the pre-embedded threaded sleeve 201, and using threaded fasteners. Compared to the traditional wooden formwork installation method that requires on-site drilling, the pre-machined upper connection holes effectively ensure the assembly accuracy of the template components and avoid template misalignment caused by on-site processing errors. The threaded connection method has the advantages of being detachable and reusable, improving the turnover rate of the template components while ensuring connection reliability. This structural design simplifies the installation process, enabling the upper template 1 to quickly and accurately achieve a rigid connection with the pre-embedded positioning plate 2, thereby ensuring the dimensional stability of the inverted retaining wall pouring space.

[0027] In this embodiment, the lower template 3 has a pre-set lower connecting hole arranged opposite to the threaded sleeve 201. The lower fastener 302 passes through the connecting hole and is threadedly connected to the threaded sleeve 201. Specifically, the position of the lower connecting hole corresponds to the position of the threaded sleeve 201 on the pre-embedded positioning plate 2, ensuring accurate alignment of the lower template 3 during installation. The lower fastener 302 can be a bolt or a screw, which passes through the lower connecting hole and is screwed into the threaded sleeve 201 to achieve a fixed connection between the lower template 3 and the pre-embedded positioning plate 2. As a preferred embodiment, the lower connecting hole can be set as an elongated hole to facilitate fine-tuning during installation. In addition, the diameter of the lower connecting hole is slightly larger than the diameter of the lower fastener 302 to compensate for construction errors.

[0028] Therefore, this technical solution achieves rapid and accurate positioning and reliable fixing of the lower template 3 by setting a lower connecting hole corresponding to the threaded sleeve 201 in the lower template 3 and using a lower fastener 302 for connection. Compared with the prior art, this solution avoids the problem of unstable installation of traditional wooden formwork, effectively ensuring the stability of the template during concrete pouring of the suspended hole, thereby improving the pouring quality. Specifically, the threaded connection method makes template disassembly more convenient and allows for reuse, improving construction efficiency.

[0029] In this embodiment, the upper template 1, the embedded positioning plate 2, and the lower template 3 are all L-shaped metal plates. Specifically, the L-shaped metal plate consists of two mutually perpendicular surfaces. The metal material can be galvanized steel plate or stainless steel plate, with a thickness ranging from 1.5 to 3 mm. Thus, this technical solution achieves standardized manufacturing and installation of template components by adopting an integrated L-shaped metal structure. The rigidity of the metal material ensures the dimensional stability of the template during concrete pouring, avoiding the problem of easy deformation of traditional wooden formwork. The integrated design of the L-shaped structure simplifies the installation process, and the L-shaped metal plate structure is well-suited for pouring concrete into L-shaped supports and pre-drilled holes.

[0030] In this embodiment, the upper template 1 has upwardly extending upper extensions 104 at both ends along its length, and each upper extension 104 is provided with a water-swellable waterstop strip 4. In use, the upper extensions 104 abut against the wall surface on the corresponding side. Specifically, the upper extensions 104 and the upper template 1 are manufactured using an integral molding process. The water-swellable waterstop strip 4 is fixed to the surface of the upper extension 104 with an adhesive, and the waterstop strip material can be rubber-based or polyurethane-based composite material. As a preferred embodiment, the upper extensions 104 at both ends form a Z-shaped structure with the upper side stop 101; the thickness of the upper extensions 104 is consistent with that of the upper template 1; and the cross-section of the waterstop strip is rectangular.

[0031] Therefore, this technical solution, by setting an extension structure with a water-stopping function at the end of the upper formwork 1, can effectively block the path of water leakage along the formwork joints during concrete pouring. When the water-swellable water-stop strip comes into contact with seepage water, it expands in volume and can automatically fill the tiny gaps between the formwork and the wall. Compared with the traditional sealing method using sealant, it has an adaptive sealing effect and a long-term seepage prevention effect. This design is particularly suitable for flue duct inverted retaining wall pouring, which can solve the problem of reduced concrete strength of the inverted retaining wall caused by leakage at the formwork joints, while avoiding secondary construction for subsequent leak repair.

[0032] In this embodiment, the lower template 3 has downwardly extending lower extensions 301 at both ends along its length, and each lower extension 301 is equipped with a water-swellable sealing strip 4. In use, the lower extensions 301 abut against the wall surface on the corresponding side. Specifically, the lower extensions 301 are integrally formed or welded to the lower template 3, and their vertical downward extension height is 20-50mm. The water-swellable sealing strip 4 is made of rubber and is fixed to the surface of the lower extension 301 with adhesive. Upon contact with water, it expands and fills the gaps in the contact surface, achieving a leak-proof effect.

[0033] Therefore, this technical solution solves the problem of easy leakage at the joint between traditional suspended hole formwork and the wall by adding a water-stopping structural component to the end of the lower formwork 3. The lower extension 301 forms a physical water-blocking structure, which, together with the chemical sealing effect of the water-swellable water-stop strip, effectively blocks the path of water penetration along the formwork joint. Compared with the existing technology that simply relies on the tight assembly of the formwork, this design can establish a reliable waterproof barrier in the early stage of concrete solidification, avoiding the risk of leakage later. This structure significantly improves the seepage prevention performance of the suspended hole concrete while maintaining the overall rigidity of the formwork components.

[0034] The implementation principle of the above-mentioned template assembly for one-time pouring of flue hanging holes and retaining wall concrete is as follows: During use, the pre-embedded positioning plate 2 is fixed to the floor slab reinforcement during the floor slab concrete pouring, and the opening of the threaded sleeve 201 is sealed to prevent concrete from entering; after the finished flue is installed, the upper and lower templates 3 are abutted against the corresponding wall or finished flue; then the upper and lower templates are fixed to the pre-embedded positioning plate 2 with bolts. Before concrete pouring, the template is moistened so that the water-swellable rubber waterstop strip 4 blocks the gaps. After the concrete is poured, the upper and lower template assemblies are removed and reused, and the threaded sleeve 201 on the pre-embedded positioning plate 2 is filled with mortar.

[0035] Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A formwork assembly for integrated casting of flue duct openings and retaining walls, characterized in that: It includes an upper template, a pre-embedded positioning plate, and a lower template arranged in parallel from top to bottom; The pre-embedded positioning plate is used to be pre-embedded in the floor slab during use, and a threaded sleeve is fixed at a set position on the pre-embedded positioning plate; The upper template is used to fit against the top surface of the floor slab during use, and the upper template has an upwardly extending upper side baffle on the edge near the finished flue. The upper side baffle is used to define the pouring space of the inverted curb with the wall and the finished flue. The lower formwork is used to fit against the bottom surface of the floor slab during use and to define the pouring space for filling the reserved holes with the upper formwork, floor slab, wall and finished flue; Fasten the upper template to the threaded sleeve and secure it in place with the fasteners. Fasten the lower template to securely connect it to the threaded sleeve.

2. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 1, characterized in that: The threaded sleeve has a central sealing section.

3. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 1, characterized in that: Multiple threaded sleeves are provided along the length extension direction of the pre-embedded positioning plate.

4. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 1, characterized in that: The upper template has a pre-set upper connecting hole that is arranged opposite to the threaded sleeve. The upper fastener passes through the connecting hole and is threadedly connected to the threaded sleeve.

5. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 1, characterized in that: The lower template has a pre-set lower connecting hole arranged opposite to the threaded sleeve. The lower fastener passes through the connecting hole and is threadedly connected to the threaded sleeve.

6. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 1, characterized in that: The upper template, the embedded positioning plate, and the lower template are all L-shaped metal plates.

7. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 6, characterized in that: The upper template has an upwardly extending upper extension at both ends along its length extension direction, and the upper extension is provided with a water-swellable waterstop strip.

8. The formwork assembly for integrated casting of flue duct openings and retaining walls according to claim 6, characterized in that: The lower template has downwardly extending lower extensions at both ends along its length extension direction, and the lower extensions are provided with water-swellable waterstop strips.

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