Telescopic steel chimney

By designing a retractable steel chimney and utilizing the coordination of an adjusting motor, threaded support shaft, and drive gear, the problem of poor chimney adaptability was solved, achieving efficient flue gas emission under various meteorological conditions.

CN223740813UActive Publication Date: 2025-12-30JIANGSU TONGJIU MASCH CO LTD
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Patent Information

Application Number
CN202520277571.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-12-30
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing chimneys are difficult to adjust to flue gas emission levels and diffusion requirements, resulting in poor adaptability and an inability to maintain efficient emissions under various meteorological conditions.

Method used

A retractable steel chimney was designed, including a chimney bottom cylinder, a chimney top cylinder, a guide frame, and a load-bearing top cylinder. By adjusting the coordination of the motor, threaded support shaft, and drive gear, the flue gas emission outlet can be adaptively adjusted and its stability enhanced.

Benefits of technology

It enables chimneys to emit flue gas efficiently and stably under various meteorological conditions, adapting to changes in flue gas volume and wind force, thus enhancing the system's flexibility and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a telescopic steel chimney, relates to the technical field of steel chimney structures, and aims to solve the problems that the flue gas discharge amount of combustion equipment is easy to change due to use conditions, but most chimneys are difficult to adjust according to the flue gas discharge amount and flue gas diffusion requirements, and the service life of the chimneys is influenced. The chimney only can be used for discharging flue gas in a single form; comprising a chimney bottom cylinder, a chimney top cylinder, a dredging carrying frame and a bearing top cylinder. A sliding branch groove is formed in the side face of the chimney bottom cylinder. The chimney top cylinder is fixedly mounted at the top of the chimney bottom cylinder; the dredging carrying frame is fixedly arranged on the outer side of the chimney top cylinder in a sleeving manner; the top end of the chimney top cylinder is sleeved with the bearing top cylinder, and a mounting top seat is fixedly mounted at the top of the bearing top cylinder; the combination of the driving motor and the driving gear can drive the driving gear ring to rotate, so that the bearing top cylinder is supported to rotate integrally, and the orientation of the discharge port is adjusted; and the extraction device mounted on the top seat can be adjusted according to the wind direction, so that the flue gas can be stably discharged under adverse weather conditions.
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Description

Technical Field

[0001] This utility model belongs to the technical field of steel chimney structures, and more specifically, it relates to a retractable steel chimney. Background Technology

[0002] Chimneys, as a common building structure, primarily function as channels for venting exhaust gases from combustion equipment (such as boilers, furnaces, and smelters). The design and construction of chimneys can vary depending on factors such as application scenarios, building materials, and environmental requirements. A chimney is a vertical pipe, usually located inside or outside a building, used to discharge exhaust gases and heat generated during combustion into the atmosphere while preventing these gases from entering the indoor environment.

[0003] Based on the above, the flue gas emissions of current combustion equipment are easily affected by usage conditions. However, most chimneys are difficult to adjust according to flue gas emissions and flue gas diffusion requirements, resulting in poor adaptability of chimneys, which can only be used for a single form of flue gas emission. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a retractable steel chimney, which solves the problem that the flue gas emission of combustion equipment is easily affected by usage conditions, but most chimneys are difficult to adjust according to the flue gas emission and flue gas diffusion requirements, resulting in poor adaptability of the chimney and the problem that the chimney can only be used for a single form of flue gas emission.

[0005] This utility model discloses a retractable steel chimney, achieved through the following specific technical means:

[0006] A retractable steel chimney comprises the following core components: a chimney base, a chimney top, a guide frame, and a load-bearing top. The detailed structure and function of each component are as follows:

[0007] Chimney base:

[0008] The side is equipped with a sliding support groove and a ventilation groove, which are used for support and ventilation, respectively.

[0009] The bottom is equipped with a positioning support ring to ensure accurate placement of the chimney.

[0010] The outer side is equipped with mounting rings to provide fixing points for the entire structure.

[0011] The inner side is equipped with a sliding telescopic inner cylinder, and the side has an exhaust slot for discharging exhaust gas.

[0012] Additional mounting supports, stabilizing supports, and sliding struts are installed on the sides of the mounting ring to enhance support stability.

[0013] Chimney top:

[0014] It is fixed to the top of the bottom of the chimney.

[0015] The side has a drainage channel to facilitate the discharge of smoke.

[0016] The outer side is equipped with a rotating support ring and a mounting shaft groove, which facilitates the mating with other components.

[0017] Decentralization frame:

[0018] It is fixed to the outside of the top of the chimney.

[0019] It has a mounting frame on the side and an adjustment motor inside.

[0020] The bottom of the mounting side frame is equipped with a threaded support shaft, which is connected to the threaded support block through a threaded structure and connected to the sliding support groove of the telescopic inner cylinder.

[0021] The side is also equipped with a mounting side frame, a drive motor and a drive gear to realize the function of guiding the load frame.

[0022] Supporting top cylinder:

[0023] It is fitted onto the top of the chimney.

[0024] The top is equipped with a mounting bracket, and the top of the bracket has a pull-out support groove and a fixed pull-out device for maintenance and cleaning.

[0025] The side is equipped with a drive gear ring, an assembly collar, and a shielding support plate to enhance structural stability and functionality.

[0026] The retractable steel chimney provided by this utility model has the following beneficial effects:

[0027] This utility model, by comprising a chimney bottom cylinder, a chimney top cylinder, a guide frame, and a load-bearing top cylinder, effectively guides flue gas transport through the coordinated operation of the chimney bottom cylinder and the internal telescopic inner cylinder. Its specific functions are as follows:

[0028] The combination of the chimney bottom and the telescopic inner cylinder enables the exhaust slot and ventilation slot to discharge flue gas autonomously, ensuring emission efficiency.

[0029] Adjusting the connection between the motor and the threaded support shaft allows the threaded support block to rotate, thereby supporting the telescopic inner cylinder for telescopic adjustment. This design allows the mating area between the exhaust slot and the venting slot to be adaptively adjusted according to the flue gas volume.

[0030] When encountering strong winds, the threaded support block can further adjust the telescopic inner cylinder to adapt to changes in wind force and maintain the stability of flue gas emissions.

[0031] In addition, the system also includes the following intelligent adjustment functions:

[0032] The guide support is fixed to the top of the telescopic inner cylinder, and the connecting slot on its side is located inside the guide frame, which helps the flue gas to flow smoothly.

[0033] The combination of the drive motor and the drive gear can drive the drive gear ring to rotate, thereby supporting the overall rotation of the bearing top cylinder and realizing the adjustment of the discharge port orientation;

[0034] The extraction device installed on the top mount can be adjusted according to the wind direction to ensure stable emission of flue gas even under adverse weather conditions;

[0035] The combination of connecting slots and guiding slots enables the extraction device to extract and discharge flue gas according to actual conditions, enhancing the system's adaptability and flexibility.

[0036] Through these optimization measures, the chimney system can maintain efficient flue gas emissions under various weather conditions. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall assembly of the telescopic steel chimney of this utility model;

[0038] Figure 2 This is a structural schematic diagram showing a partial cross-sectional view of the assembly of the telescopic steel chimney components of this utility model;

[0039] Figure 3 This is a schematic diagram of the assembly and disassembly of the chimney bottom section of this utility model.

[0040] Figure 4 This is a schematic diagram of the assembly and disassembly of the chimney top component of this utility model;

[0041] Figure 5 This is a structural diagram illustrating the assembly and disassembly of the overall components of the dredging frame of this utility model;

[0042] Figure 6 This is a structural diagram illustrating the assembly and disassembly of the load-bearing top cylinder integral component of this utility model.

[0043] Figure label:

[0044] 1. Chimney base;

[0045] 101. Sliding support groove; 102. Ventilation groove; 103. Positioning support ring; 104. Mounting support ring; 1041. Mounting support; 1042. Stabilizing support; 1043. Sliding support column; 105. Telescopic inner cylinder; 106. Exhaust groove; 107. Guide support cylinder; 108. Connection groove;

[0046] 2. Chimney top;

[0047] 201. Slotting; 202. Rotating support ring; 203. Assembling shaft groove;

[0048] 3. Streamline the loading frame;

[0049] 301. Install the side frame; 302. Adjust the motor; 303. Threaded support shaft; 304. Threaded support block; 305. Assemble the side frame; 306. Drive the motor; 307. Drive the gear;

[0050] 4. Supporting top cylinder;

[0051] 401. Drive gear ring; 402. Assembly collar; 403. Covering support plate; 404. Mounting top seat; 405. Extraction support groove; 406. Extraction device. Detailed Implementation

[0052] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0053] Example 1: As Figures 1 to 6 As shown, the present invention provides a retractable steel chimney, including a chimney bottom cylinder 1, a chimney top cylinder 2, a guide frame 3, and a load-bearing top cylinder 4.

[0054] A sliding support groove 101 and a ventilation groove 102 are both provided through the side of the chimney bottom cylinder 1. A positioning support ring 103 is fixedly installed at the bottom end of the chimney bottom cylinder 1. An installation support ring 104 is fixedly fitted on the outer side of the chimney bottom cylinder 1. A telescopic inner cylinder 105 is slidably installed on the inner side of the chimney bottom cylinder 1. An exhaust groove 106 is provided through the side of the telescopic inner cylinder 105. The chimney top cylinder 2 is fixedly installed at the top of the chimney bottom cylinder 1. A drainage groove 201 is provided through the side of the chimney top cylinder 2. A drainage frame 3 is fixedly fitted on the outer side of the chimney top cylinder 2. A drainage frame 3 is fixedly installed on the side of the chimney top cylinder 2. The device is equipped with an installation side frame 301, an adjustment motor 302 is fixedly installed inside the installation side frame 301, a threaded support shaft 303 is rotatably provided at the bottom of the installation side frame 301, a threaded support block 304 is sleeved on the outside of the threaded support shaft 303 through a threaded structure, and the threaded support block 304 is fixedly connected to the telescopic inner cylinder 105 through a sliding support groove 101; the load-bearing top cylinder 4 is sleeved on the top of the chimney top cylinder 2, an installation top seat 404 is fixedly installed on the top of the load-bearing top cylinder 4, an extraction support groove 405 is opened through the top of the installation top seat 404, and an extraction device 406 is fixedly installed on the top of the installation top seat 404.

[0055] Example 2: Figures 2 to 6As shown, the side of the dredging frame 3 is also provided with an assembly side frame 305, a drive motor 306, and a drive gear 307; the assembly side frame 305 is fixedly installed on the side of the dredging frame 3, the drive motor 306 is fixedly installed on the inner side of the assembly side frame 305, and the drive gear 307 is rotatably installed on the inner side of the assembly side frame 305; the side of the bearing top cylinder 4 is also provided with a drive gear ring 401, an assembly collar 402, and a shielding support plate 403; the drive gear ring 401 is fixedly sleeved on the outer side of the bearing top cylinder 4, the assembly collar 402 is fixedly installed on the inner side of the bearing top cylinder 4, and the shielding support plate 403 is fixedly sleeved on the outer side of the bearing top cylinder 4; the drive motor 306, in conjunction with the drive gear 307, can drive the drive gear ring 401 to rotate, so that the drive gear ring 401 supports the bearing top cylinder 4 as a whole for rotational adjustment.

[0056] Example 3: Figures 2 to 5 As shown, the mounting ring 104 is also provided with a mounting support 1041, a stabilizing support 1042, and a sliding support 1043 on its side; the mounting support 1041 is fixedly installed on the side of the mounting ring 104, the stabilizing support 1042 is fixedly installed on the side of the mounting ring 104, and the sliding support 1043 is fixedly installed on the top of the stabilizing support 1042; the top of the telescopic inner cylinder 105 is also provided with a guide support 107 and a connecting slot 108; the guide support 107 is fixedly installed on the top of the telescopic inner cylinder 105. A connecting slot 108 is formed through the side of the guide support cylinder 107; a rotating support ring 202 and an assembly shaft groove 203 are also provided on the outside of the chimney top cylinder 2; the rotating support ring 202 is fixedly sleeved on the outside of the chimney top cylinder 2, and the assembly shaft groove 203 is formed on the outside of the rotating support ring 202; the moving threaded support block 304 can be slidably supported by the stabilizing support 1042 and the sliding support column 1043, and the rotating support ring 202 and the assembly shaft groove 203 can provide positioning support for the rotation of the entire bearing top cylinder 4.

[0057] The specific usage and function of this embodiment are as follows: In use, the chimney bottom cylinder 1 is fixedly installed by installing the support ring 104 in conjunction with the support 1041. The chimney bottom cylinder 1 is fixedly connected to the flue that needs to discharge flue gas by cooperating with the positioning support ring 103. The chimney bottom cylinder 1, in conjunction with the telescopic inner cylinder 105, guides and transports the flue gas. The exhaust slot 106, in conjunction with the ventilation slot 102, allows for the autonomous discharge of flue gas. The telescopic inner cylinder 105 adjusts the position of the exhaust slot 106 and the ventilation slot 102 by telescopic adjustment, allowing the exhaust slot 106 and the ventilation slot 102 to be adjusted adaptively according to the amount of flue gas. The telescopic inner cylinder 105 is further adjusted to allow the guide support cylinder 107 to be set inside the guide frame 3. The connecting slot 108, in conjunction with the guide slot 201, allows the extraction device 406 to extract and discharge flue gas as needed.

Claims

1. A telescopic steel chimney mainly comprising the following components: a chimney bottom cylinder (1), a chimney top cylinder (2), a dredging carrier frame (3) and a bearing top cylinder (4) ; The chimney bottom cylinder (1) is provided with a sliding support groove (101) on the side, is provided with a ventilation connecting groove (102) on the side, is fixedly provided with a positioning support ring (103) at the bottom end, is fixedly provided with an installation support ring (104) on the outside, is slidably provided with an extension inner cylinder (105) on the inside, and is provided with an exhaust opening groove (106) on the side of the extension inner cylinder (105); characterized in that, The chimney top cylinder (2) is fixedly installed at the top end of the chimney bottom cylinder (1), and a dredging slot (201) is formed through the side of the chimney top cylinder (2) ; the dredging carrier frame (3) is fixedly sleeved outside the chimney top cylinder (2), and a mounting side frame (301) is fixedly installed at the side of the dredging carrier frame (3), an adjusting motor (302) is fixedly installed inside the mounting side frame (301), a threaded support shaft (303) is rotatably arranged at the bottom of the mounting side frame (301), a threaded support block (304) is sleeved outside the threaded support shaft (303) through a threaded structure, and the threaded support block (304) is fixedly connected with the telescopic inner cylinder (105) through the sliding support groove (101) ; the bearing top cylinder (4) is sleeved at the top end of the chimney top cylinder (2), and a mounting top seat (404) is fixedly installed at the top of the bearing top cylinder (4), a drawing support groove (405) is formed through the top of the mounting top seat (404), and a drawing device (406) is fixedly installed at the top of the mounting top seat (404). 2.The telescopic steel chimney according to claim 1, wherein the mounting support ring (104) is further provided with a mounting support base (1041), a stabilizing support base (1042) and a sliding support column (1043) at the side thereof; the mounting support base (1041) is fixedly installed at the side of the mounting support ring (104), the stabilizing support base (1042) is fixedly installed at the side of the mounting support ring (104), and the sliding support column (1043) is fixedly installed at the top of the stabilizing support base (1042). 3.The telescopic steel chimney according to claim 1, wherein the telescopic inner cylinder (105) is further provided with a guide support cylinder (107) and a connecting slot (108) at the top end thereof; the guide support cylinder (107) is fixedly installed at the top end of the telescopic inner cylinder (105), and the connecting slot (108) is formed through the side of the guide support cylinder (107). 4.The telescopic steel chimney according to claim 1, wherein the chimney top cylinder (2) is further provided with a rotating support ring (202) and an assembly shaft slot (203) outside thereof; the rotating support ring (202) is fixedly sleeved outside the chimney top cylinder (2), and the assembly shaft slot (203) is formed outside the rotating support ring (202). 5.The telescopic steel chimney according to claim 1, wherein the dredging carrier frame (3) is further provided with an assembly side frame (305), a driving motor (306) and a driving gear (307) at the side thereof; the assembly side frame (305) is fixedly installed at the side of the dredging carrier frame (3), the driving motor (306) is fixedly installed inside the assembly side frame (305), and the driving gear (307) is rotatably arranged inside the assembly side frame (305).

6. The telescopic steel chimney according to claim 1, further characterized in that the side of the bearing top cylinder (4) is further provided with a driving tooth ring (401), an assembly shaft ring (402) and a shielding support plate (403); the driving tooth ring (401) is fixedly sleeved on the outside of the bearing top cylinder (4), the assembly shaft ring (402) is fixedly arranged on the inside of the bearing top cylinder (4), and the shielding support plate (403) is fixedly sleeved on the outside of the bearing top cylinder (4).