Prefabricated flue installation auxiliary device
The modular prefabricated flue installation auxiliary device solves the problems of low installation efficiency and unsuitable support for prefabricated flues, and realizes an efficient and reusable support solution, ensuring construction quality and preventing leakage.
Patent Information
- Application Number
- CN202422999897.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing technologies for prefabricated flues have low installation efficiency, require secondary pouring and are prone to leakage, are difficult to support and cause deformation, and have unsuitable support tools, resulting in time and labor costs.
A modular prefabricated flue installation auxiliary device is designed. By combining the adjustment part and the external support part, it can support prefabricated flues of different sizes. The size of the external support part can be adjusted by adjusting nuts and connecting rods to adapt to different size requirements. Combined with template fixing, it can achieve one-time casting molding.
It improves the installation efficiency of prefabricated flues, prevents deformation, reduces the risk of leakage, and allows for the reuse of support tools, saving time and labor and ensuring construction quality.
Smart Images

Figure CN223536006U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, and in particular to an auxiliary device for the installation of prefabricated flues. Background Technology
[0002] In the housing construction industry, flues are often prefabricated using materials such as stainless steel. During building construction, space needs to be reserved for the installation of the flue. The prefabricated flue is then installed and fixed, followed by a secondary sealing process using a second pour of concrete to fix it to the wall. This construction process is inefficient, requiring two pours to fix the flue, and is prone to leakage problems later. Therefore, an integrated casting construction method has emerged. This method uses wooden scaffolding and other tools to fix the prefabricated flue and formwork, allowing for a single pour. During integrated casting, the sidewalls of the metal prefabricated flue will deform under the pressure of the concrete. Therefore, formwork is needed inside the prefabricated flue to support it and prevent deformation. However, because the dimensions of prefabricated flues used in different buildings vary, each time the prefabricated flue is supported, it needs to be re-supported, making it unusable, time-consuming, and labor-intensive. Utility Model Content
[0003] The purpose of this utility model is to provide an auxiliary device for the installation of prefabricated flues to solve the problems mentioned in the background art.
[0004] A prefabricated flue installation auxiliary device includes an adjustment part, which includes an upper adjustment and a lower adjustment, which are movably connected to each other to adjust the distance between them. Several adjustment rods are rotatably connected to the upper and lower adjustments. The device also includes an outer support part, which includes several connecting plates and connecting angles spaced apart. The other end of each adjustment rod is rotatably connected to a connecting plate or connecting angle. Both the upper and lower adjustments are connected to the same connecting plate or connecting angle through adjustment rods. A prefabricated flue is provided on the outer periphery of the outer support part.
[0005] Preferably, the upper adjustment includes a plurality of upper discs, which are fixedly connected at equal intervals to the connecting rod. An adjusting nut is rotatably connected to the upper disc at the end of the connecting rod. The adjusting nut can rotate freely relative to the upper disc to which it is rotatably connected. The adjusting nut is threadedly connected to the lower adjustment.
[0006] Furthermore, the lower adjustment includes a plurality of lower discs of the same number as the upper discs. The plurality of lower discs are interconnected by a support rod. One end of the support rod extends through the lower discs and is suspended in the air. The suspended end of the support rod is threaded. The adjusting nut is threaded onto the support rod. The support rod passes through all the upper discs and is slidably connected to the upper discs. The connecting rod passes through all the lower discs and is slidably connected to the lower discs. The plurality of upper discs and the same number of lower discs are spaced apart from each other.
[0007] Furthermore, both the upper and lower discs have several bushings equidistantly spaced along the circumference, and one end of the adjusting rod is rotatably connected to the bushing.
[0008] Furthermore, several sets of fixing sleeves are provided at equal intervals on the connecting plate and the connecting corner. Each set of fixing sleeves includes two fixing sleeves. The two fixing sleeves in the same set are rotatably connected to one end of two adjacent connecting rods on the adjacent upper and lower discs, respectively.
[0009] Preferably, a connecting positioning component is fastened to the connecting plate, and the other end of the connecting positioning component is fixedly connected to the wooden block.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This device is modular in design. The distance between adjacent upper and lower discs can be adjusted by rotating the adjusting nut. Both the upper and lower discs are connected to the outer support section via an adjusting rod. The outer support section is composed of multiple interconnected parts. When the distance between the upper and lower discs changes, the distance between each part of the outer support section and the support rod also changes, thereby adjusting the external dimensions of the outer support section. This allows the device to be telescopically adjustable, enabling it to support and fix prefabricated flues of different sizes outside the outer support section. It has a wide range of applications, can be repeatedly used through adjustment, and saves time and effort.
[0012] During installation, the tool can be inserted through the flue and then supported internally to protect the flue and avoid increasing costs. By connecting it with the original template support system, the relative relationship is ensured to guarantee the molding quality.
[0013] Using auxiliary tools, the original precast flue can be poured together with the main structure in one go. The improved process reduces leakage while ensuring that the flue is not damaged. The whole device is modular and each component can be replaced. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention in use;
[0015] Figure 2This is a schematic diagram of the separate structure of the adjustment part and the connecting plate in this utility model;
[0016] Figure 3 This is a schematic diagram of the upper and lower adjustment separation structure in this utility model.
[0017] In the diagram: 1. Adjustment part; 11. Upper adjustment; 111. Upper disc; 112. Connecting rod; 113. Adjusting nut; 12. Lower adjustment; 121. Lower disc; 122. Support rod; 2. Adjustment rod; 21. Bushing; 22. Fixing sleeve; 3. External support; 31. Connecting plate; 32. Connecting angle; 4. Connecting positioning piece; 5. Prefabricated flue; 6. Template. Detailed Implementation
[0018] The following will describe specific embodiments and appendices. Figure 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described.
[0019] An auxiliary device for installing precast flues includes an adjustment part 1, a connecting rod 112, and an outer support part 3. The adjustment part 1 is connected to the outer support part 3 via a support rod 122. The adjustment part 1 can be internally adjusted, and the adjustment process will affect the angle of the connecting rod 112 connected to the adjustment part 1, thereby adjusting the outer support size of the outer support part 3. This allows the device to support and fix precast flues 5 of different sizes, preventing the precast flues 5 from being deformed due to excessive concrete pressure during the pouring process.
[0020] The adjustment unit 1 includes an upper adjustment 11 and a lower adjustment 12, which cooperate with each other to adjust the connecting rod 112 connected to the adjustment unit 1.
[0021] The upper adjustment 11 and the lower adjustment 12 are movably connected. Specifically, the upper adjustment 11 includes three upper discs 111 and two connecting rods 112. The three upper discs 111 are equidistantly fixedly connected to the two parallel connecting rods 112. The uppermost upper disc 111 is fixedly connected to the upper end of the two connecting rods 112, while the middle and lower upper discs 111 are passed through by the connecting rods 112. Eight bushings 21 are equidistantly distributed along the edge of each upper disc 111. An adjusting nut 113 is rotatably connected to the upper disc 111, and the adjusting nut 113 can rotate freely relative to the upper disc 111. The lower adjustment 12 includes three lower discs 121 equidistant from the upper discs 111. The three lower discs 121 are fixedly connected to a support rod 122. The distance between the three lower discs 121 is the same as the distance between the three upper discs 111. The lower end of 22 is fixedly connected to the lower disk 121 on the lower side. The upper end of the support rod 122 passes through the lower disk 121 on the upper side. The part of the support rod 122 located on the upper side of the lower disk 121 is a threaded rod part. The support rod 122 is threadedly connected to the adjusting nut 113 through this part. After the upper adjustment 11 and the lower adjustment 12 are connected, the support rod 122 passes through all the upper disks 111 and is slidably connected to the upper disks 111. The connecting rod 112 passes through all the lower disks 121 and is slidably connected to the lower disks 121. At the same time, the three upper disks 111 and the three lower disks 121 are spaced apart from each other. By rotating the adjusting nut 113, the connecting rod 112 and the upper disks 111 can move axially relative to the connecting rod 112. Thus, rotating the adjusting nut 113 can make the adjacent upper disks 111 and lower disks 121 move closer or further away from each other.
[0022] Eight bushings 21 are fixedly connected at equal intervals along the circumference at corresponding positions on each upper disk 111 and lower disk 121. Adjusting rods 2 are rotatably connected to the bushings 21. One end of the bushing 21 is rotatably connected to the connecting rod 112, and the other end of all the connecting rods 112 is rotatably connected to the outer support 3.
[0023] The outer support 3 includes four connecting plates 31 and four connecting corners 32 spaced apart. The four connecting plates 31 and four connecting corners 32 are arranged alternately and can be assembled to form a support structure with a rectangular cross-section. Three sets of fixing sleeves 22 are equidistantly arranged vertically on the inner side of each connecting plate 31 and connecting corner 32. The positions of the three sets of fixing sleeves 22 correspond to the upper adjustment 11 and the lower adjustment 12. Each set of fixing sleeves 22 corresponds to an upper disc 111 and a lower disc 121. Each set of fixing sleeves 22 includes two fixing sleeves 22, which are adjacent and arranged vertically. The upper fixing sleeve 22 is rotatably connected to the adjusting rod 2 on the upper disc 111. The fixed sleeve 22 located at the lower part is rotatably connected to the adjusting rod 2 on the lower disc 121. The distance between the upper disc 111 and the lower disc 121, the corresponding adjusting rod 2 on the upper disc 111 and the corresponding adjusting rod 2 on the lower disc 121 form a triangle. By adjusting the length of one base, the length of the height with that base can be adjusted. Thus, the distance between the outer support 3 and the adjusting part 1 can be controlled by adjusting the distance between the upper disc 111 and the lower disc 121, thereby realizing the size adjustment of the outer support 3. The outer side of the outer support 3 is used to fix the prefabricated flue 5. By adjusting, the outer support 3 can be supported and fixed inside the prefabricated flue 5 of different sizes, enhancing its applicability and making it convenient and simple to use.
[0024] A template 6 is supported by wooden beams on the outside of the precast flue 5. The template 6 assists in the concrete forming. A connecting positioning piece 4 is fixed at the top of the four connecting plates 31. One end of the connecting positioning piece 4 is fixed on the connecting plate 31, and the other end is fixed to the wooden beam outside the template 6 by rivets, which can play a positioning role for the entire outer support 3.
[0025] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.
[0026] In this utility model, "upper", "lower", "left", "right", "front" and "back" are relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.
[0027] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. An auxiliary device for installing prefabricated flues, characterized in that, The device includes an adjustment section, which comprises an upper adjustment and a lower adjustment, movably connected to each other to adjust the distance between them. Each upper and lower adjustment is rotatably connected to several adjustment rods. It also includes an outer support section, which comprises several connecting plates and connecting angles spaced apart. The other ends of the adjustment rods are rotatably connected to the nearest connecting plate or connecting angle. Both the upper and lower adjustments are connected to the same connecting plate or connecting angle via adjustment rods. A prefabricated flue is provided on the outer periphery of the outer support section.
2. The prefabricated flue installation auxiliary device according to claim 1, characterized in that, The upper adjustment includes several upper discs, which are fixedly connected to the connecting rod at equal intervals. An adjusting nut is rotatably connected to the upper disc at the end of the connecting rod. The adjusting nut can rotate freely relative to the upper disc to which it is rotatably connected. The adjusting nut is threadedly connected to the lower adjustment.
3. The prefabricated flue installation auxiliary device according to claim 2, characterized in that, The lower adjustment includes a plurality of lower disks equal in number to the upper disks. The plurality of lower disks are interconnected by a support rod. One end of the support rod extends through the lower disks and is suspended in the air. The suspended end of the support rod is threaded. The adjusting nut is threaded onto the support rod. The support rod passes through all the upper disks and is slidably connected to the upper disks. The connecting rod passes through all the lower disks and is slidably connected to the lower disks. The plurality of upper disks and the same number of lower disks are spaced apart from each other.
4. The prefabricated flue installation auxiliary device according to claim 3, characterized in that, Both the upper and lower discs have several bushings equidistantly spaced along the circumference, and one end of the adjusting rod is rotatably connected to the bushing.
5. The prefabricated flue installation auxiliary device according to claim 4, characterized in that, The connecting plate and the connecting corner are provided with several sets of fixing sleeves at equal intervals. Each set of fixing sleeves includes two fixing sleeves. The two fixing sleeves in the same set are rotatably connected to one end of two connecting rods on the adjacent upper and lower discs, respectively.
6. The prefabricated flue installation auxiliary device according to claim 1, characterized in that, A connecting positioning component is fastened to the connecting plate, and the other end of the connecting positioning component is fixedly connected to the wooden block.