An assembled air shaft

Abstract

The utility model provides a kind of assembly type air shaft belongs to ventilation, fire-fighting and air conditioning equipment technical field.The assembly type air shaft is formed by the combination of multiple modular plate bodies;The end of the modular plate body is provided with a clamping part and a clamping groove part or a matching part, and the side edge is provided with a fixing bolt and a fixing hole;Under the action of external force, the clamping part on any one of the modular plate bodies can be pushed into the clamping groove part or the matching part on the adjacent modular plate body to form a combination, so that a fireproof and sealed connection is formed between the two adjacent modular plate bodies, thereby forming an air shaft.The utility model solves the problem of high construction difficulty, difficulty in controlling the flatness and sealing performance of the inner wall of the traditional "air shaft + air pipe", and has the characteristics of convenient splicing, good sealing and fireproof performance, can be prefabricated, and can be hoisted and constructed on site, greatly shortens the construction time of the air shaft and improves the construction safety.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a prefabricated ventilation shaft. Background Technology

[0002] Ventilation shafts are commonly used in ventilation, fire protection, and air conditioning systems. They are typically constructed with four brick walls or concrete slabs forming the four sides of the shaft, creating a seamless, dense, and continuous cavity at the junctions of these sides. When using brick masonry, the shaft walls need to be built layer by layer, and the inner walls must be plastered to ensure the shaft's airtightness and smoothness. When using concrete casting, pre-installed embeddings and formwork are required.

[0003] In addition, the additional duct lining of existing brick / concrete ventilation shafts increases construction costs and occupies a large building area.

[0004] Therefore, the existing engineering technologies mentioned above have at least the following technical problems: brick masonry is cumbersome to construct, has high labor costs, and a high risk factor; concrete pouring has high construction strength, large accuracy errors, and rough inner walls. Summary of the Invention

[0005] This application provides a prefabricated ventilation shaft and its assembly method, which solves the technical problem in existing building engineering technology that fire protection system ventilation shafts can meet fire resistance requirements without lining with ducts; solves the technical problem of cumbersome and inefficient construction process of "ventilation shaft + duct" in the field of building engineering; and solves the technical problem of excessive frictional resistance and local resistance in various system ventilation shafts in the field of building HVAC.

[0006] To solve the above-mentioned technical problems, in a first aspect, embodiments of this application provide a prefabricated ventilation shaft, the prefabricated ventilation shaft comprising: multiple modular plates for assembling and splicing to form a ventilation shaft, wherein each modular plate has a snap-fit ​​part, a slot part / or a mating part on its end, and a fixing hole and a matching, independently formed fixing bolt on its side.

[0007] The snap-fit ​​part and the slot part / or mating part are simultaneously formed on both ends of the module plate. The module plate is pre-formed from a single piece of fire-resistant, non-combustible, and homogeneous material, and has a smooth inner surface.

[0008] The module board has a fixing hole on its side, and the fixing bolt is fixed and locked with the fixing hole on the module board.

[0009] Fire-resistant sealing material is laid in the slot or mating part of any module plate.

[0010] Under the action of external force, the snap-fit ​​part on any of the module plates can be pushed into the snap-fit ​​part / or mating part on the adjacent module plate to form an insert splicing combination, so as to form a sealed and fire-resistant connection between two adjacent module plates, thereby forming a ventilation shaft.

[0011] Furthermore, the fixing hole is provided with a threaded connection.

[0012] Furthermore, the fixing bolt is externally threaded.

[0013] Furthermore, the rectangular ring-shaped module plate has four fixing holes on its side and the side directly opposite it.

[0014] Furthermore, the “O”-shaped circular annular module plate has four fixing holes on its side and its symmetrical axis side.

[0015] Secondly, this application also provides an assembly method for a prefabricated ventilation shaft, the method comprising the following steps:

[0016] Prefabricated modular panels and fixing bolts;

[0017] Transport the module panels and fixing bolts to the ventilation shaft installation site of the building project;

[0018] At the ventilation shaft installation site, the modular panels are assembled into a ventilation shaft through the insertion splicing of their snap-fit ​​parts and slots / or mating parts.

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0020] (1) The prefabricated ventilation shaft provided in this application embodiment can be inserted into the slot / or mating part on the adjacent module plate to form an insert splice under the action of external force. During on-site assembly, workers can use power equipment to directly push the module plates into each other to complete the assembly of the ventilation shaft, eliminating the need for the process of step-by-step bricklaying or concrete pouring in the prior art, greatly reducing the difficulty and danger of construction projects, and significantly improving project efficiency; it solves the technical problem of cumbersome and inefficient construction process of "ventilation shaft + duct" in the field of construction engineering.

[0021] (2) The prefabricated ventilation shaft provided in this application adopts factory-scale production of modular panels, and the quality, precision and customization can be controlled, thereby ensuring that the enclosed ventilation shaft has a smooth inner wall, is airtight, non-combustible and has a long fire resistance time; it solves the technical problem in existing building engineering technology that fire protection system ventilation shafts can meet the fire resistance limit requirements without lining the ducts; it also solves the technical problem of excessive friction resistance and local resistance in various system ventilation shafts in the field of building HVAC.

[0022] (3) In the prefabricated air shaft provided by the embodiments of the present application, the transverse cross-sectional shape in the length direction of the module plate body is a hollow "Hui"-shaped rectangle or an "O"-shaped circle.

[0023] (4) The module plate body is directly integrally prefabricated and molded to form a rectangular air shaft or a circular air shaft.

[0024] (5) In addition, under the tight fit of the fireproof sealant or fireproof adhesive for the clamping portion and the clamping groove portion / or matching portion between the module plate bodies, the middle opening of the clamping groove portion / or matching portion is recessed downward to form a "U"-shaped groove, which greatly improves the air tightness of the air shaft connection.

[0025] (6) The peripheral coaming of the module plate body is integrally constructed and molded to ensure the air tightness of the body itself, so as to ensure that the enclosed air shaft does not leak air.

[0026] (7) The end of the clamping portion of the module plate body is formed by gradual arc protrusion, the opening of the clamping groove portion / or matching portion is gradually flared in a horn shape via an arc, and the inner bottom end is formed by arc indentation, so that the clamping portion can be smoothly inserted and constrained into the clamping groove portion / or matching portion, with convenient splicing, firmness and good air tightness.

[0027] (8) Compared with the traditional "air shaft + air duct" installation process, the prefabricated air shaft described in the embodiments of the present application realizes mass production of module plates in the factory, with controllable size, quality and precision; moreover, only small-volume module plates need to be transported, which are easy to stack, making transportation convenient, efficient and low-cost; in addition, only clamping and splicing is required at the construction site, which greatly reduces the construction difficulty of "air shaft + air duct" and significantly improves the assembly efficiency; the factory-scale production of module plates can ensure the inner wall of the air shaft is smooth, meeting the requirements of connection sealing and fire resistance. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 is a perspective view of the clamping portion end of the "Hui"-shaped rectangular module plate body in the transverse cross-section along the length direction of the body of the prefabricated air shaft in the embodiment of the present invention;

[0030] Figure 2 is a perspective view of the clamping groove portion / or matching portion end of the "Hui"-shaped rectangular module plate body in the transverse cross-section along the length direction of the body of the prefabricated air shaft in the embodiment of the present invention, where the middle opening of the clamping groove portion / or matching portion is recessed downward to form a "U"-shaped groove;

[0031] Figure 3 for Figure 2 The 1-1 cross-sectional view shows that the wooden block board has a snap-fit ​​part and a slot part / or mating part at both ends in the length direction;

[0032] Figure 4 for Figure 3 Section 2-2;

[0033] Figure 5 This is a perspective view of the slot / or mating part of the prefabricated ventilation shaft in the embodiment of the present invention, which has an "O" shaped cross-sectional shape in the length direction of the main body. The slot / or mating part has a recessed opening in the middle to form a "U" shaped groove.

[0034] Figure 6 This is a side view of the "O"-shaped circular modular panel of the prefabricated ventilation shaft in an embodiment of the present invention;

[0035] Figure 7 for Figure 5 Section 3-3;

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Module board; 2. Snap-fit ​​part; 3. Slot part / or mating part; 4. Fixing bolt; 5. Fixing hole. Detailed Implementation

[0038] This application provides a prefabricated ventilation shaft, which solves the technical problems of cumbersome installation process, low efficiency, and complex fire resistance limit requirements of the traditional "ventilation shaft + duct" system.

[0039] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0040] One or more embodiments of this application provide a prefabricated ventilation shaft. The prefabricated ventilation duct is formed by assembling and splicing multiple modular panels 1. Each modular panel 1 is provided with a snap-fit ​​part 2 and a slot part and / or a mating part 3 that can be inserted and sealed with adjacent modular panels 1. The slot part and / or the mating part 3 is filled with fireproof sealant or fireproof adhesive. Therefore, the modular panels 1 can be prefabricated in batches in the factory and then transported to the ventilation shaft installation site. At the ventilation shaft installation site, each modular panel 1 is assembled into a ventilation shaft by inserting the snap-fit ​​part 2 and the slot part / matting part 3. Compared with the traditional "ventilation shaft + duct" installation process, this prefabricated ventilation shaft features factory-produced modular panels 1, with controllable dimensions, quality, and precision. Moreover, only small-volume modular panels 1 need to be transported, facilitating stacking and making transportation convenient, efficient, and cost-effective. In addition, on-site assembly only requires plug-in assembly, greatly reducing the construction difficulty of "ventilation shaft + duct" and significantly improving assembly efficiency. The factory-scale production of modular panels 1 ensures smooth inner walls of the ventilation shaft, meeting the requirements for joint sealing and fire resistance.

[0041] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0042] like Figures 1 to 7 As shown, the prefabricated ventilation shaft provided in this application embodiment includes: a multi-section modular plate 1, which is used to assemble and splice to form a ventilation shaft, and the end of the modular plate is provided with a snap-fit ​​part 2, a slot part / or a mating part 3, and the side of the modular plate is provided with a fixing bolt 4 and a fixing hole 5.

[0043] Under the action of external force, the snap-fit ​​part 2 on any of the module plates 1 can be pushed into the snap-fit ​​part / or mating part 3 on the adjacent module plate 1 to form a combined splice, thereby forming a fire-resistant and sealed connection between two adjacent module plates 1, thus forming a ventilation shaft.

[0044] As described above, the prefabricated ventilation shaft provided in this application embodiment can be inserted into the slot / or mating part 3 on any of the module plates 1 under external force to form an insert splice. During on-site assembly, workers can use power equipment to manually push the module plates to insert and splice each other to complete the assembly of the ventilation shaft, eliminating the need for the step-by-step bricklaying or concrete pouring process in the prior art. This greatly reduces the difficulty and danger of construction projects and significantly improves project efficiency. It solves the technical problem of cumbersome and inefficient construction process of "ventilation shaft + duct" in the field of construction engineering.

[0045] It should be noted that the module plate 1 described above is only provided with a snap-fit ​​part 2, a slot part / or a mating part 3 and a fixing hole 5; the fixing bolt 4 is independently formed, which ensures that each module plate 1 is fixed and secure to the wall at the construction site.

[0046] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 As shown, the prefabricated modular panel 1 is generally a rectangular frame or a circular cylinder formed by four panels or one curved surface.

[0047] Each module panel 1 is nested with the others through an insert-type splicing of the snap-fit ​​part 2 and the slot part / or mating part 3. When the length of the prefabricated ventilation shaft needs to be increased / decreased, the module panel 1 can be added / removed directly at either end of the already formed series ventilation shaft. Here, any segment of the series-formed ventilation shaft can be constructed by splicing together multiple types of module panels 1 of different lengths, thereby realizing the actual design and construction requirements of the building project.

[0048] It should be noted that in the prefabricated ventilation shaft provided in this application, the module plate 1 can be installed by first locking the position of the fixing hole 5 with the fixing bolt 4, and then the first module plate 1 can be placed in the predetermined position of the ventilation shaft by manpower or mechanical power equipment with its slot part / or mating part 3 facing upward. Then, the snap-fit ​​part 2 of the Nth module plate 1 is spliced ​​with the slot part / or mating part 3 of the N+1th module plate 1 to form a shape. The slot part / or mating part 3 of the Nth module plate 1 is inserted and spliced ​​with the snap-fit ​​part 2 of the N-1th module plate 1 to form a shape. The Nth module plate (1) is continuously spliced ​​with the N-1th or N+1th segment of the adjacent module plate (1) to form a shape.

[0049] In some embodiments, the joint between any module plate 1 and the adjacent module plate 1 is filled with fireproof and sealing materials to ensure the fire resistance and airtightness of the ventilation shaft. The fireproof and sealing materials can be existing fireproof sealing mud that is mature in existing building engineering, which will not be described in detail in this embodiment.

[0050] The assembly process of the prefabricated ventilation shaft in this embodiment is as follows:

[0051] First, workers select multiple modular panels 1. Then, the slots / fitting parts 3 at both ends of any one of the modular panels 1, which can be inserted and sealed with adjacent modular panels, are filled with fire-retardant sealant or fire-retardant adhesive. Under external force, the snap-fitting part 2 on another modular panel 1 is pushed into the slot / fitting part 3 on the adjacent modular panel 1 to form an insert splice and seal, thereby forming a ventilation shaft.

[0052] It should be understood that although quantifiers such as "first," "second," etc., may be used herein to describe various module body segments, these module body segments should not be limited by these terms. These terms are used merely to distinguish one module body segment from another. For example, without departing from the scope of the exemplary embodiments, a first segment may be referred to as a second segment, and similarly, a second segment element may be referred to as a first segment.

[0053] The directional terms such as "outer," "middle," "inner," and "surrounding" mentioned or potentially used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the method of this application, and these improvements and additions should also be considered within the scope of protection of this invention. Any modifications, alterations, and equivalent variations made by those skilled in the art without departing from the spirit and scope of this application, based on the disclosed technical content, are equivalent embodiments of this application. Furthermore, any modifications, alterations, and variations made to the above embodiments based on the essential technology of this application still fall within the scope of the technical solution of this application.

Claims

1. A prefabricated ventilation shaft, characterized in that, The prefabricated air shaft comprises: a plurality of segmented module plates (1), which are used for being combined and spliced to form the air shaft, wherein the two ends of each module plate in the length direction are respectively provided with a clamping part (2) and a clamping groove part / or matching part (3), and the side edge of each module plate is provided with a fixing bolt (4) and a fixing hole (5); under the action of an external force, the clamping part (2) on any one of the module plates (1) can be pushed into the clamping groove part / or matching part (3) on the adjacent module plate (1) to form a combined splice, so as to form a fireproof and sealed connection between two adjacent module plates (1), thereby forming the air shaft.

2. The prefabricated ventilation shaft according to claim 1, characterized in that, The clamping part (2), the clamping groove part / or matching part (3) and the fixing hole (5) are arranged on the module plate (1) and integrally formed; the fixing bolt (4) is independently and integrally formed and matches the size of the fixing hole (5); the Nth segment of the module plate (1) is continuously spliced and formed with the adjacent N-1th segment or N+1th segment of the module plate (1).

3. The prefabricated ventilation shaft according to claim 2, characterized in that, The clamping part (2) of the Nth segment of the module plate (1) is spliced and formed with the clamping groove part / or matching part (3) of the N+1th segment of the module plate (1), and the clamping groove part / or matching part (3) of the Nth segment of the module plate (1) is in plug-in spliced formation with the clamping part (2) of the N-1th segment of the module plate (1); the Nth segment of the module plate (1) is continuously spliced and formed with the adjacent N-1th segment or N+1th segment of the module plate (1).

4. The prefabricated ventilation shaft according to claim 2 or 3, characterized in that, The adjacent module plates (1) are formed of a fireproof, non-combustible, homogeneous material, and have smooth inner surfaces.

5. The prefabricated ventilation shaft according to claim 2 or 3, characterized in that, The clamping part (2) is formed to protrude outward, and the middle part of the clamping groove part / or matching part (3) is opened and recessed inward to form a U-shaped groove.

6. The prefabricated ventilation shaft according to claim 3, characterized in that, A fire-resistant sealed splice is directly formed between the adjacent module plates (1).

7. The prefabricated ventilation shaft according to claim 2, characterized in that, The length L of the N-1th segment, the Nth segment and the N+1th segment of the module plate (1) is customized, variable and freely combinable.

8. The prefabricated ventilation shaft according to claim 2, 3 or 4, characterized in that, Threaded engagement fixation is formed between the fixing bolt (4) and the fixing hole (5) on the module plate (1).

9. The prefabricated ventilation shaft according to claim 1, characterized in that, The transverse cross-sectional shape of the main body of the module plate (1) in the length direction is a hollow "Hui"-shaped rectangle or an "O"-shaped circle.

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