Rainproof device for chimney

Abstract

The utility model discloses a chimney rainproof device, which relates to the technical field of chimneys and comprises a chimney body, a fixing ring is fixedly connected to the side surface of the top of the chimney body, a pair of threaded rods is in threaded connection in the fixing ring, and the upper ends of the pair of threaded rods are jointly and rotatably connected with a lifting box. When the chimney is used, smoke can be exhausted from the chimney body through upward movement of the lifting box, meanwhile, the rainproof cap can be driven to move upwards through upward movement of the lifting box, the rainproof cap can prevent rainwater from falling into the chimney to erode the chimney, the service life of the chimney is prolonged, and the chimney is convenient to use. And when not in use, the rainproof cap can be driven to move downwards through downward movement of the lifting box, and the rainproof effect can be improved through downward movement of the rainproof cap.

Description

Technical Field

[0001] This utility model relates to the field of chimney technology, specifically to a chimney rainproof device. Background Technology

[0002] Chimneys are typically vertical, or as close to vertical as possible, to ensure smooth gas flow; the space inside a chimney is called a flue.

[0003] However, traditional chimneys do not have rainproof devices on top, and a large amount of rainwater falls into the chimney, which will corrode the chimney and shorten its service life. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a chimney rainproof device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a chimney rainproof device, comprising a chimney body, a fixing ring fixedly connected to the top side surface of the chimney body, a pair of threaded rods internally threadedly connected to the fixing ring, a lifting box rotatably connected to the upper ends of the pair of threaded rods, and a rainproof cap fixedly connected to the surface of the lifting box.

[0006] Preferably, a fourth bevel gear is fixedly connected to the upper end of the threaded rod through the lower wall of the lifting box, a rotating shaft is rotatably connected inside the lifting box, a pair of third bevel gears are fixedly connected to the side surface of the rotating shaft, the third bevel gears mesh with the fourth bevel gear, a second bevel gear is fixedly connected to the side surface of the rotating shaft and located between the pair of third bevel gears, a motor is fixedly connected to the upper surface of the lifting box, and a first bevel gear is fixedly connected to the motor drive end through the upper wall of the lifting box, the first bevel gear meshes with the second bevel gear.

[0007] Preferably, the lower ends of the pair of threaded rods are rotatably connected to a lifting ring, the chimney body is located inside the lifting ring, and a plurality of guide rods are fixedly connected between the lifting box and the lifting ring, the guide rods being slidably connected to the fixed ring.

[0008] Beneficial effects:

[0009] This utility model provides a rainproof device for chimneys, which has the following beneficial effects:

[0010] 1. During use, the upward movement of the lifting box allows the flue gas to be discharged from the chimney body. At the same time, the upward movement of the lifting box can also move the rain cap upward, which can prevent rainwater from falling into the chimney and corroding it, thus improving the service life of the chimney.

[0011] 2. When not in use, the rain cap can be moved downwards by moving the lifting box downwards, which can improve the rain protection effect. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 This is a top view of the lifting ring in this utility model.

[0014] In the diagram: 1. Chimney body; 2. Lifting ring; 3. Threaded rod; 4. Fixing ring; 5. Rain cap; 6. Fourth bevel gear; 7. Third bevel gear; 8. Guide rod; 9. Second bevel gear; 10. Motor; 11. First bevel gear; 12. Lifting box; 13. Rotating shaft. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0016] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", and "outer", are only for reference to the directions shown in the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Please see Figure 1-2 This utility model provides a technical solution: a chimney rainproof device, including a chimney body 1, a fixing ring 4 fixedly connected to the top side surface of the chimney body 1, a pair of threaded rods 3 internally threadedly connected to the fixing ring 4, a lifting box 12 rotatably connected to the upper ends of the pair of threaded rods 3, a rainproof cap 5 fixedly connected to the surface of the lifting box 12; a fourth bevel gear 6 fixedly connected to the upper end of the threaded rods 3 through the lower wall of the lifting box 12, a rotating shaft 13 rotatably connected inside the lifting box 12, a pair of third bevel gears 7 fixedly connected to the side surface of the rotating shaft 13, the third bevel gears... 7 meshes with the fourth bevel gear 6. The second bevel gear 9 is fixedly connected to the side surface of the rotating shaft 13 and located between a pair of third bevel gears 7. The motor 10 is fixedly connected to the upper surface of the lifting box 12. The drive end of the motor 10 passes through the upper wall of the lifting box 12 and is fixedly connected to the first bevel gear 11. The first bevel gear 11 meshes with the second bevel gear 9. The lower ends of a pair of threaded rods 3 are rotatably connected to the lifting ring 2. The chimney body 1 is located inside the lifting ring 2. Multiple guide rods 8 are fixedly connected between the lifting box 12 and the lifting ring 2. The guide rods 8 are slidably connected to the fixed ring 4.

[0018] Those skilled in the art should electrically connect all electrical components in this case to their compatible power supplies, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working sequence of each electrical component in the following working principle to complete the electrical connection. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not explain the electrical control.

[0019] Example: According to the appendix of the instruction manual Figure 1-2 As can be seen, during operation, the starting motor 10 drives the first bevel gear 11 to rotate, which in turn drives the second bevel gear 9 to rotate. The second bevel gear 9 then drives a pair of third bevel gears 7 to rotate, which in turn drives a pair of fourth bevel gears 6 to rotate. The rotation of the fourth bevel gears 6 drives a pair of threaded rods 3 to rotate and move upwards. This upward movement of the threaded rods 3 drives the lifting box 12 to move upwards, allowing flue gas to exit from the chimney body 1. Simultaneously, the upward movement of the lifting box 12 also drives the rain cap 5 to move upwards, preventing rainwater from entering the chimney and eroding it. This improves the service life of the chimney. When not in use, the motor 10 reverses, which drives the first bevel gear 11 to rotate in the opposite direction. The first bevel gear 11 rotates in the opposite direction, which drives the second bevel gear 9 to rotate in the opposite direction. The second bevel gear 9 rotates in the opposite direction, which drives a pair of third bevel gears 7 to rotate in the opposite direction. The pair of third bevel gears 7 rotates in the opposite direction, which drives a pair of fourth bevel gears 6 to rotate in the opposite direction. The pair of fourth bevel gears 6 rotates in the opposite direction, which drives a pair of threaded rods 3 to rotate in the opposite direction and move downward. The pair of threaded rods 3 moving downward drives the lifting box 12 to move downward. The lifting box 12 moving downward drives the rain cap 5 to move downward. The rain cap 5 moving downward improves the rainproof effect.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rainwater prevention device for a chimney, characterized by Including chimney body (1), chimney body (1) top side surface fixedly connected with fixed ring (4), a pair of threaded rods (3) are threadedly connected in fixed ring (4), a pair of threaded rods (3) upper end common rotationally connected with lifting box (12), lifting box (12) surface fixedly connected with rainproof cap (5).

2. A rain screen according to claim 1, wherein Threaded rod (3) upper end penetrates the fourth bevel gear (6) that lifting box (12) lower wall is fixedly connected with, lifting box (12) is rotationally connected with the rotating shaft (13) in, rotating shaft (13) side surface fixedly connected with a pair of third bevel gears (7), third bevel gear (7) is engaged with fourth bevel gear (6), rotating shaft (13) side surface and between a pair of third bevel gears (7) fixedly connected with second bevel gear (9), lifting box (12) upper surface fixedly connected with motor (10), motor (10) drive end penetrates the first bevel gear (11) that lifting box (12) upper wall is fixedly connected with, first bevel gear (11) is engaged with second bevel gear (9).

3. A rain screen according to claim 1, wherein, A pair of threaded rods (3) lower end common rotationally connected with lifting ring (2), chimney body (1) is located in lifting ring (2), a plurality of guide rods (8) are fixedly connected between lifting box (12) and lifting ring (2), guide rod (8) is slidably connected with fixed ring (4).

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