Metal chimney anti-whipping structure
Through the innovative design of the arc plate and fixing components, and by using a combination of screws, springs and fixing nuts, along with the adjustment of the support screw and screw cylinder, the problem of metal chimney swaying in windy weather has been solved, achieving stable fixing of the chimney and extending its service life.
Patent Information
- Application Number
- CN202522279407.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-28
AI Technical Summary
Metal chimneys are prone to swaying in windy weather, leading to metal fatigue and deformation, which affects their performance.
The structure employs an arc plate and fixing components, utilizing a combination of screws, springs, and fixing nuts. Through the fit between the arc plate and the chimney body and the adjustment of the supporting screws, combined with expansion bolts, it is fixed to the base to form a stable support structure.
It effectively prevents chimney swaying, reduces metal fatigue, and ensures the stability and service life of the chimney.
Smart Images

Figure CN224932764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal chimney technology, specifically to a metal chimney anti-sway structure. Background Technology
[0002] A chimney is a structure that provides ventilation for hot flue gas or smoke from a boiler, furnace, or fireplace. Chimneys are typically vertical, or as close to vertical as possible, to ensure a smooth flow of gas, drawing in air for what is known as chimney combustion or the chimney effect. The space inside a chimney is called a flue. Chimneys can be found in buildings, steam locomotives, and ships.
[0003] Most chimneys currently in use are metal chimneys. When in use, metal chimneys are easily shaken by strong winds and other conditions. Metal is prone to deformation, and long-term shaking can lead to metal fatigue, causing the metal chimney to break and deform, affecting its performance. Therefore, a sway-prevention structure for metal chimneys is needed. Utility Model Content
[0004] The purpose of this invention is to provide a metal chimney anti-sway structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal chimney anti-sway structure, comprising an arc plate and a fixing component, characterized in that a chimney body is provided on the inner side of the arc plate, the fixing component is installed inside both ends of the arc plate, and the fixing component includes a screw, a spring and a fixing nut, the screw is surrounded by a spring, and a fixing nut is provided on one side of the spring, the screw passes through two sets of arc plates and then through the spring and is rotated to install the fixing nut, the elasticity of the spring ensures that the connection will not loosen.
[0006] Furthermore, a connecting screw is installed inside the middle of the arc plate, and the connecting screw is threaded to the arc plate. After the installation positions of the arc plate and the support legs are determined, the arc plate and the connecting screw will not rotate relative to each other, and their positions will not change.
[0007] Furthermore, a connecting shaft is installed in the middle of the connecting screw, and the connecting shaft and the connecting screw are rotatably connected.
[0008] Furthermore, a support screw is installed at one end of the connecting shaft, and the support screw is rotatably connected to the connecting shaft. The support screw can be rotated on the connecting shaft for easy adjustment and fixation.
[0009] Furthermore, a hexagonal block is welded to the upper periphery of the support screw, and a support screw cylinder is installed on the lower periphery. Using a wrench, the three support screws are rotated by the hexagonal block on the support screw. The support screws rotate and extend out of the support screw cylinder, which abuts against the connecting screw through the connecting shaft, making it easy to adjust and fix.
[0010] Furthermore, a locking nut is installed on the outer periphery of the middle part of the support screw, and the locking nut is threadedly connected to the support screw. Rotating the locking nut will cause it to press against the support cylinder to prevent the support screw from rotating relative to the support cylinder.
[0011] Furthermore, the lower end of the supporting screw cylinder is equipped with a support leg, and the support leg is hinged to the supporting screw cylinder. The support leg is installed on the rigid base by means of expansion bolts or other methods to provide stable support.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Three sets of arc plates are rotated and installed onto both ends of the connecting screw, ensuring the arc surfaces face the same direction. First, the screw passes through two sets of arc plates, then through the spring, and the fixing nut is rotated to complete the initial installation. The inner arc surfaces of the two sets of arc plates are then attached to the chimney body. The remaining set of arc plates is then fixed to these two sets using the same method using a fixing assembly, and the fixing nut is tightened. The spring force ensures the connection will not loosen, thus completing the installation of the arc plates. This effectively clamps and fixes most of the chimney body, facilitating... The chimney body is supported as a whole. The length of the support screw inside the support cylinder is changed by rotating the support screw to adjust the support to a suitable length. Then, the support legs are installed on the rigid base by means of expansion bolts. Using a wrench, the three support screws are rotated by the hexagonal blocks on the support screws. The support screws rotate and extend out of the support cylinder, and then abut against the connecting screw through the connecting shaft. The lock nut is rotated to abut against the support cylinder to prevent the support screws from rotating relative to the support cylinder. The chimney body is effectively fixed by the three support screws pushing and abutting against the connecting screw, which is convenient for adjustment and fixation. 1. In this utility model, three sets of arc plates are rotated and installed onto both ends of the connecting screw, keeping the arc surfaces facing the same direction. First, the screw is passed through two sets of arc plates, then through the spring, and the fixing nut is rotated and installed to complete the initial installation. The inner arc surfaces of the two sets of arc plates are then attached to the chimney body. The remaining set of arc plates is then fixed to the two sets of arc plates in the same way using the fixing components, and the fixing nut is tightened. The elasticity of the spring ensures that the connection will not loosen, thereby completing the installation of the arc plates and effectively clamping and fixing most of the chimney body, which facilitates the overall support of the chimney body. 2. This utility model uses a rotating support screw to change the length inside the support cylinder, adjusting the overall support to a suitable length. Then, the support legs are installed on a rigid base using expansion bolts or other methods. A wrench is used to rotate the three support screws through the hexagonal blocks on the support screws. The rotating support screws extend out of the support cylinder and abut against the connecting screw through the connecting shaft. The locking nut is rotated to abut against the support cylinder to prevent the support screws from rotating relative to the support cylinder. The three support screws work together to push and abut against the connecting screw, effectively fixing the chimney body and facilitating adjustment and fixation. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a metal chimney anti-sway structure according to the present invention; Figure 2 This is a three-dimensional structural diagram of the arc plate of the anti-sway structure of a metal chimney according to the present invention. Figure 3 This is a three-dimensional cross-sectional view of the supporting screw cylinder of the anti-sway structure of a metal chimney according to the present invention.
[0014] In the diagram: 1. Arc plate; 2. Fixing component; 201. Screw; 202. Spring; 203. Fixing nut; 3. Connecting screw; 4. Chimney body; 5. Connecting shaft; 6. Support screw; 7. Hexagonal block; 8. Locking nut; 9. Supporting screw cylinder; 10. Support leg. Detailed Implementation
[0015] like Figure 1 and Figure 2 As shown, a metal chimney anti-sway structure includes an arc plate 1 and a fixing component 2. A chimney body 4 is disposed on the inner side of the arc plate 1. The fixing component 2 is installed inside both ends of the arc plate 1 and includes a screw 201, a spring 202, and a fixing nut 203. The spring 202 is installed around the screw 201, and a fixing nut 203 is disposed on one side of the spring 202. A connecting screw 3 is installed inside the middle of the arc plate 1, and the connecting screw 3 is threadedly connected to the arc plate 1. Three sets of arc plates 1 are respectively rotated and installed onto the connecting screw. With both ends of 3 facing the same direction, first pass the screw 201 through the two sets of arc plates 1 and then through the spring 202 and rotate to install the fixing nut 203 to complete the initial installation. Then, attach the inner arc surfaces of the two sets of arc plates 1 to the chimney body 4. Then, use the fixing component 2 to fix the remaining set of arc plates 1 to the two sets of arc plates 1 in the same way and tighten the fixing nut 203. The elasticity of the spring 202 ensures that the connection will not loosen, thus completing the installation of the arc plate 1 and effectively clamping and fixing most of the chimney body 4, which facilitates the overall support of the chimney body 4.
[0016] like Figure 1 and Figure 3As shown, a connecting shaft 5 is installed in the middle of the connecting screw 3, and the connecting shaft 5 is rotatably connected to the connecting screw 3. A support screw 6 is installed at one end of the connecting shaft 5, and the support screw 6 is rotatably connected to the connecting shaft 5. A hexagonal block 7 is welded to the upper periphery of the support screw 6, and a support screw cylinder 9 is installed on the lower periphery. A locking nut 8 is installed on the middle periphery of the support screw 6, and the locking nut 8 is threadedly connected to the support screw 6. A support leg 10 is installed at the lower end of the support screw cylinder 9, and the support leg 10 is hinged to the support screw cylinder 9. Rotating the support screw 6 changes the position of the screw. The length inside the support cylinder 9 is adjusted to a suitable length for the entire support. Then, the support legs 10 are installed on the rigid base using expansion bolts or other methods. Using a wrench, the three support screws 6 are rotated by the hexagonal block 7 on the support screw 6. The support screws 6 rotate and extend out of the support cylinder 9, and then abut against the connecting screw 3 through the connecting shaft 5. The locking nut 8 is rotated to abut against the support cylinder 9 to prevent the support screws 6 and the support cylinder 9 from rotating relative to each other. The chimney body 4 is effectively fixed by the joint push of the three support screws 6 against the connecting screw 3, making it easy to adjust and fix.
[0017] Working principle: When using this metal chimney anti-sway structure, firstly, the three sets of arc plates 1 are rotated and installed onto both ends of the connecting screw 3, keeping the arc surfaces facing the same direction. First, the screw 201 is passed through two sets of arc plates 1, then through the spring 202, and the fixing nut 203 is rotated and installed to complete the initial installation. The inner arc surfaces of the two sets of arc plates 1 are then attached to the chimney body 4. Next, the remaining set of arc plates 1 is fixed to these two sets of arc plates 1 in the same way using the fixing component 2, and the fixing nut 203 is tightened. The elasticity of the spring 202 ensures that the connection will not loosen, thus completing the installation of the arc plates 1 and effectively clamping and fixing most of the chimney body. 4. To facilitate overall support of the chimney body 4, the length of the support screw 6 inside the support cylinder 9 is changed by rotating the support screw 6 to adjust the overall support to a suitable length. Then, the support leg 10 is installed on the rigid base by means of expansion bolts, etc. Using a wrench, the three support screws 6 are rotated by the hexagonal block 7 on the support screw 6. The support screw 6 rotates and extends out of the support cylinder 9, and abuts against the connecting screw 3 through the connecting shaft 5. The locking nut 8 is rotated to abut against the support cylinder 9 to prevent the support screw 6 from rotating relative to the support cylinder 9. The chimney body 4 is effectively fixed by the joint push of the three support screws 6 against the connecting screw 3, which facilitates adjustment and fixation.
Claims
1. A metal chimney anti-sway structure, comprising an arc plate (1) and a fixing component (2), characterized in that, The inner side of the arc plate (1) is provided with a chimney body (4). The fixing component (2) is installed inside both ends of the arc plate (1). The fixing component (2) includes a screw (201), a spring (202) and a fixing nut (203). The spring (202) is installed around the screw (201), and a fixing nut (203) is provided on one side of the spring (202). A connecting screw (3) is installed inside the middle part of the arc plate (1), and the connecting screw (3) is threadedly connected to the arc plate (1). A connecting shaft (5) is installed in the middle part of the connecting screw (3). The connecting shaft (5) and the connecting screw (3) are rotatably connected. A support screw (6) is installed at one end of the connecting shaft (5), and the support screw (6) and the connecting shaft (5) are rotatably connected. A hexagonal block (7) is welded to the outer periphery of the upper end of the support screw (6), and a support screw cylinder (9) is installed on the outer periphery of the lower end. A locking nut (8) is installed on the outer periphery of the middle part of the support screw (6), and the locking nut (8) and the support screw (6) are threadedly connected. A support foot (10) is installed at the lower end of the support screw cylinder (9), and the support foot (10) and the support screw cylinder (9) are hinged.
