Chimney with special-shaped baffle
The special-shaped baffle structure with toothed plates and gears solves the problems of drive motor damage and rainwater accumulation, achieves the safety and reliability of the chimney, and ensures that the motor is not damaged and the boiler operates normally.
Patent Information
- Application Number
- CN202422860972.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In the prior art, when the drive motor or reducer is damaged, the baffle body may open upward under the push of the airflow, causing smoke to be discharged from the drain port, damaging the drive motor, and rainwater is easily accumulated in the chimney, affecting the use of the boiler.
A special-shaped baffle structure is designed. Through the cooperation of the tooth plate and gear, the baffle ring can cover or expose the drain outlet when the shaft rotates, ensuring that high-temperature flue gas does not damage the motor, and draining rainwater on rainy days to prevent accumulated water from entering the boiler.
It effectively prevents high-temperature flue gas from being discharged from the drain port to damage the motor, ensuring the safety of the motor, and effectively drains rainwater on rainy days to prevent damage to the boiler.
Smart Images

Figure CN223460486U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a chimney with special-shaped baffle belongs to chimney technical field. BACKGROUND
[0002] The baffle in the chimney plays the role of blocking and adjusting, when opening, it is convenient for the chimney to exhaust, when closing, it can block the flue gas, the baffle in the chimney is usually driven to overturn by the motor, by closing the main chimney baffle door, the chimney can be effectively blocked, not only can prolong the service life of the boiler, but also is beneficial to shorten the time required for restarting the waste heat boiler.
[0003] Through the search, the chimney with special-shaped baffle of the announcement number CN220582469U includes chimney main body and baffle main body. Advantageous effect: the utility model discloses the baffle main body of oblique arrangement can start drive motor and drive the rotation of the main shaft, the main shaft reeling pull rope, and then pull the baffle main body and rotate along the main shaft, and then complete the folding of the baffle main body, when needing to close, the main shaft can be controlled to rotate reversely by drive motor, the pull rope is released, the baffle main body is unfolded along the main shaft by gravity, until the abutment with the baffle, the formation of herringbone structure, block the chimney main body, when drive motor or speed reducer is damaged, the thrust of the air pressure under the baffle main body is greater than the gravity of the baffle main body, the baffle main body can still rotate upward along the main shaft and open under the push of the airflow, avoid the problem that the air pressure under the baffle main body is too high and causes danger, the device does not have to open the hole on the surface of the baffle main body and install additional one-way blocking structure, the structure is simpler;
[0004] Based on the above patent, when the drive motor or the speed reducer is damaged, the thrust of the air pressure under the baffle main body is greater than the gravity of the baffle main body, the baffle main body can still rotate upward along the main shaft and open under the push of the airflow, avoid the problem that the air pressure under the baffle main body is too high and causes danger, improve the safety of use, but the baffle main body is in the upward folding state, rainwater is easy to accumulate and difficult to drain in rainy days, and the accumulated rainwater will fall into the chimney when the baffle is opened, which will affect the use of the boiler, for this technical problem, the chimney with special-shaped baffle is provided. Utility model content
[0005] The utility model discloses a chimney with special-shaped baffle belongs to chimney technical field.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A chimney with a special-shaped baffle, including a chimney body, a driving motor is arranged at the left end of the chimney body, a rotating shaft is fixedly connected to the driving end of the driving motor, a shielding plate is connected to the middle part of the outer wall of the rotating shaft through a transmission assembly, the left and right ends of the shielding plate are connected to the inner wall of the chimney body through limiting pieces, a gear is fixedly connected to the right side of the outer wall of the rotating shaft, a toothed plate is meshingly connected to the outer diameter of the gear, a fixed block one is fixedly connected to the bottom end of the toothed plate, a baffle ring is fixedly connected to the left end of the fixed block one, sliding blocks are fixedly connected to the inner wall of the baffle ring on the left and right sides, and a plurality of drainage openings are formed in the outer wall of the chimney body.
[0008] Further, the outer wall of the rotating shaft is rotationally connected to the inner wall of the chimney body, and the outer wall of the chimney body is fixedly connected with a fixed ring.
[0009] Further, the transmission assembly comprises a winding drum fixedly connected to the middle part of the outer wall of the rotating shaft, a pull rope is wound on the outer wall of the winding drum, a lifting ring is fixedly connected to the free end of the pull rope, and the top end of the shielding plate is fixedly connected to the bottom end of the lifting ring.
[0010] Further, the limiting piece comprises a fixed block two fixedly connected to the left and right ends of the shielding plate, a telescopic cylinder is fixedly connected to the bottom end of the fixed block two, and a guide ring is fixedly connected to the outer wall of the telescopic cylinder.
[0011] Further, the outer wall of the guide ring is fixedly connected to the inner wall of the chimney body, and the bottom end of the shielding plate is arranged in the inner wall of the guide ring.
[0012] Further, the outer wall of the chimney body is provided with a sliding groove on the left and right sides, and the outer wall of the sliding block is slidingly connected to the inner wall of the sliding groove.
[0013] Further, the inner wall of the baffle ring is slidingly connected to the inner wall of the chimney body, and the bottom end of the baffle ring is arranged at the top end of the fixed ring.
[0014] The utility model has the advantages of the following beneficial effects:
[0015] 1、the utility model discloses a baffle ring can change its position on the chimney according to the rotating direction of the rotating shaft by the cooperation of the toothed plate and the gear, when the shielding plate rises to exhaust smoke, the baffle ring lowers to shield the drainage opening to avoid the high-temperature flue gas from the drainage opening to cause damage to the driving motor, when the shielding plate lowers, the baffle ring rises to expose the drainage opening, so that rainwater can be discharged from the drainage opening to prevent rainwater accumulation and avoid rainwater falling into the boiler next time.
[0016] 2、the utility model discloses that the fixed block two at the both ends of the shielding plate stretches the telescopic cylinder when the shielding plate rises, ensures that the shielding plate can be accurately clamped into the top end groove of the guide ring after resetting, prevents the shielding plate from generating a gap with the top end of the guide ring after resetting to cause rainwater to flow into the boiler or hot gas to leak out and affect the next start of the boiler. DRAWINGS
[0017] Figure 1 A perspective view of a chimney with a special-shaped baffle is provided in the utility model;
[0018] Figure 2 A sectional view of a chimney body in the chimney with a special-shaped baffle is provided in the utility model;
[0019] Figure 3 For Figure 2 An enlarged view of A in the middle.
[0020] Legend:
[0021] 1, chimney body; 2, driving motor; 3, baffle ring; 4, fixed ring; 5, drain; 6, chute; 7, fixed block one; 8, toothed plate; 9, rotating shaft; 10, gear; 11, winding drum; 12, pull rope; 13, lifting ring; 14, shielding plate; 15, guide ring; 16, sliding block; 17, telescopic cylinder; 18, fixed block two. Specific implementation
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] With reference to Figures 1-3 , the utility model provides an embodiment: a chimney with a special-shaped baffle, including chimney body 1, chimney body 1 left end is provided with driving motor 2, and the driving end of driving motor 2 is fixedly connected with rotating shaft 9, and the outer wall of rotating shaft 9 is rotationally connected in the inner wall of chimney body 1, and the outer wall of chimney body 1 is fixedly connected with fixed ring 4, and the outer wall middle part of rotating shaft 9 is connected with shielding plate 14 through transmission assembly, and transmission assembly includes winding drum 11 fixedly connected in the outer wall middle part of rotating shaft 9, and the outer wall of winding drum 11 is wound with pull rope 12, and the free end of pull rope 12 is fixedly connected with lifting ring 13, and the top end of shielding plate 14 is fixedly connected in the bottom end of lifting ring 13, and the left and right two ends of shielding plate 14 are both connected in the inner wall of chimney body 1 through limiting piece, and limiting piece includes fixed block two 18 fixedly connected in the left and right two ends of shielding plate 14, and the bottom end of fixed block two 18 is fixedly connected with telescopic cylinder 17, and the outer wall of telescopic cylinder 17 is fixedly connected with guide ring 15, and the outer wall of guide ring 15 is fixedly connected in the inner wall of chimney body 1, and the bottom end of shielding plate 14 is arranged in the inner wall of guide ring 15;
[0024] Specifically, when the device is in normal use, the driving motor 2 drives the rotating shaft 9 to rotate and drive the winding drum 11 to rotate, so that the pull rope 12 is wound on the winding drum 11, and the lifting ring 13 lifts the shielding plate 14, so that the flue gas can be discharged from the gap between the guide ring 15 and the shielding plate 14. When the shielding plate 14 rises, the fixed block two 18 on both sides of the shielding plate 14 will pull the telescopic cylinder 17 to extend, so that the shielding plate 14 can be accurately clamped into the groove at the top of the guide ring 15 when it is reset subsequently, and wind leakage will not occur when the boiler is stopped, avoiding affecting the restart of the boiler. When the driving motor 2 fails to drive the rotating shaft 9 to rotate, the flue gas in the chimney 1 will be guided to the bottom of the shielding plate 14 under the action of the inclined slope at the bottom of the guide ring 15, and will be discharged by lifting the shielding plate 14 until the pressure is greater than the outside, avoiding the danger of excessive pressure at the bottom of the shielding plate 14.
[0025] The gear 10 is fixedly connected to the right side of the outer wall of the rotating shaft 9, the outer diameter of the gear 10 is meshingly connected with the toothed plate 8, the bottom end of the toothed plate 8 is fixedly connected with the fixed block one 7, the left end of the fixed block one 7 is fixedly connected with the blocking ring 3, the inner wall of the blocking ring 3 is fixedly connected with the sliding block 16 on both sides, the outer wall of the sliding block 16 is slidingly connected with the inner wall of the sliding groove 6 on both sides, the inner wall of the blocking ring 3 is slidingly connected with the inner wall of the chimney 1, the bottom end of the blocking ring 3 is arranged at the top end of the fixed ring 4, and a plurality of drainage openings 5 are formed in the outer wall of the chimney 1.
[0026] Specifically, when the shielding plate 14 is attached to the top of the guide ring 15, the shielding plate 14 and the surface of the guide ring 15 form an inclined slope, which can guide the rainwater to the plurality of drainage openings 5 formed in the outer wall of the chimney 1 to discharge the rainwater, avoiding the accumulation of rainwater in the chimney 1 and causing the rainwater to fall into the boiler during the next start of the boiler, causing damage to the boiler. When the driving motor 2 drives the rotating shaft 9 to rotate and promotes the shielding plate 14 to rise for smoke exhaust, the gear 10 on the right side of the rotating shaft 9 will drive the toothed plate 8 to move downward, and the fixed block one 7 will move the blocking ring 3 along the outer wall of the chimney 1 downward. When the shielding plate 14 rises to the top end, the blocking ring 3 is just moved to the top end of the fixed ring 4, shielding the drainage openings 5 formed in the outer wall of the chimney 1, preventing high-temperature flue gas from leaking out of the drainage openings 5 and impacting the driving motor 2, causing damage to the driving motor 2. The sliding block 16 arranged on the inner wall of the blocking ring 3 and the sliding groove 6 arranged on the outer wall of the chimney 1 facilitate the sliding of the blocking ring 3 on the outer wall of the chimney 1.
[0027] Working principle: when the device is in use, the driving motor 2 drives the rotating shaft 9 to rotate, so that the winding drum 11 rotates to wind the pull rope 12, thereby pulling the lifting ring 13 to make the shielding plate 14 rise, and the flue gas is discharged from the gap between the shielding plate 14 and the guide ring 15, at the same time, the gear 10 at the right end of the rotating shaft 9 drives the toothed plate 8 to move downward, so that the blocking ring 3 slides downward along the outer wall of the chimney 1 to shield the drain port 5, avoiding the flue gas from the drain port 5 during use, which is discharged to the driving motor 2 to cause damage to the driving motor 2, when the device stops using, the driving motor 2 drives the rotating shaft 9 to reverse, so that the shielding plate 14 and the blocking ring 3 reset to expose the drain port 5, at this time, the slope surface formed by the shielding plate 14 and the top of the guide ring 15 can guide the rainwater falling into the chimney 1 to the drain port 5 for discharge, avoiding the rainwater from damaging the boiler when the boiler starts next time, if the driving motor 2 fails to drive the rotating shaft 9, the flue gas will gather at the bottom of the shielding plate 14 until the pressure is higher than the outside, at this time, the shielding plate 14 can be lifted to discharge the flue gas, at this time, the telescopic cylinder 17 at the bottom end of the fixed block two 18 on the left and right sides of the shielding plate 14 can ensure that the shielding plate 14 can be clamped into the groove at the top of the guide ring 15 after the exhaust is completed, preventing the gap between the shielding plate 14 and the guide ring 15.
[0028] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A chimney having a profiled baffle, characterised in that, The chimney (1) is provided with a driving motor (2) at the left end, the driving end of the driving motor (2) is fixedly connected with a rotating shaft (9), the outer wall of the rotating shaft (9) is connected with a shielding plate (14) through a transmission assembly in the middle part, the left and right two ends of the shielding plate (14) are connected to the inner wall of the chimney (1) through a limiting piece, the outer wall of the rotating shaft (9) is fixedly connected with a gear (10) on the right side, the outer diameter of the gear (10) is engaged with a toothed plate (8), the bottom end of the toothed plate (8) is fixedly connected with a fixed block one (7), the left end of the fixed block one (7) is fixedly connected with a blocking ring (3), the inner wall of the blocking ring (3) is fixedly connected with a sliding block (16) on the left and right sides, and the outer wall of the chimney (1) is provided with a plurality of drainage openings (5).
2. A chimney with a profiled baffle according to claim 1, characterized in that: The rotating shaft (9) is rotatably connected to the inner wall of the chimney (1), and the outer wall of the chimney (1) is fixedly connected with a fixed ring (4).
3. A chimney with a profiled baffle according to claim 1, characterized in that: The transmission assembly comprises a winding drum (11) fixedly connected to the outer wall of the rotating shaft (9) in the middle part, the outer wall of the winding drum (11) is wound with a pull rope (12), the free end of the pull rope (12) is fixedly connected with a lifting ring (13), and the top end of the shielding plate (14) is fixedly connected to the bottom end of the lifting ring (13).
4. A chimney with a profiled baffle according to claim 1, characterized in that: The limiting piece comprises a fixed block two (18) fixedly connected to the left and right two ends of the shielding plate (14), and the bottom end of the fixed block two (18) is fixedly connected with an expansion cylinder (17).
5. A chimney according to claim 4, wherein: The outer wall of the guiding ring (15) is fixedly connected to the inner wall of the chimney (1), and the bottom end of the shielding plate (14) is arranged in the inner wall of the guiding ring (15).
6. A chimney with a profiled baffle according to claim 1, characterized in that: The outer wall of the chimney (1) is provided with a sliding groove (6) on the left and right sides, and the outer wall of the sliding block (16) is slidably connected to the inner wall of the sliding groove (6).
7. A chimney with a profiled baffle according to claim 1, characterized in that: The inner wall of the blocking ring (3) is slidably connected to the inner wall of the chimney (1), and the bottom end of the blocking ring (3) is arranged at the top end of the fixed ring (4).
Citation Information
Patent Citations
Chimney with special-shaped baffle
CN220582469U