Waterproof rain cap for glass fiber reinforced plastic chimney
By installing a rainfall detection component on the waterproof rain cap, the problem of rainwater entering the fiberglass chimney during heavy rain is solved. This enables automatic water blocking during heavy rain and automatic reset after rain, protecting the equipment inside the chimney and ensuring smooth smoke output.
Patent Information
- Application Number
- CN202511140193.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2025-11-11
AI Technical Summary
Existing fiberglass chimneys are prone to rainwater entering during heavy rain due to gaps between the waterproof cap and the chimney, which can damage the smoke exhaust equipment inside the factory.
A waterproof rain cap with a rainfall detection component was designed. When the rainfall exceeds a set value, the waterproof rain cap body moves down to compress the spring and block the top of the chimney to prevent rainwater from entering.
It effectively prevents rainwater from entering the chimney during heavy rain, protects the smoke exhaust equipment, ensures smooth smoke discharge, and automatically resets after the rainfall decreases to ensure normal operation.
Smart Images
Figure CN120926459A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fiberglass chimney technology, and specifically to a waterproof rain cap for fiberglass chimneys. Background Technology
[0002] Fiberglass chimneys are made of fiberglass, and the products are characterized by low cost, short production cycle, long service life, convenient processing, simple installation, light weight, high strength and rigidity, smooth inner and outer surfaces, excellent anti-aging properties, and excellent corrosion resistance at high temperatures. In addition, it is easy to add sprayers, filters and other equipment to absorb harmful components in flue gas.
[0003] Waterproof rain caps are used to protect fiberglass chimneys from water damage. To ensure smooth smoke exhaust, there is a certain distance between the waterproof rain cap and the fiberglass chimney. When there is heavy rainfall, rainwater can easily enter the fiberglass chimney through the space between the waterproof rain cap and the fiberglass chimney, damaging the smoke exhaust equipment in the factory. Summary of the Invention
[0004] The problem to be solved by the present invention is to provide a waterproof rain cap for fiberglass chimneys. By setting a rainfall detection component, when the rainfall detection component detects that the rainfall is greater than a set value, it drives the waterproof rain cap body to move downward to compress the spring and block the upper end of the chimney, thereby effectively preventing rainwater from entering the fiberglass chimney when there is a large amount of rain outside.
[0005] The technical solution provided by the present invention to solve the above problems is as follows: a waterproof rain cap for fiberglass chimneys, comprising a chimney and a waterproof rain cap body, wherein the waterproof rain cap body is installed at the upper end of the chimney; it also includes a rainfall detection component and an installation component; The installation assembly includes several installation modules. Each installation module includes an installation rod, a spring, and a positioning block. The positioning block is set on the outer circumferential surface of the upper end of the chimney. The positioning block is provided with a positioning hole. One end of the spring is fixedly connected to the positioning hole, and the other end is fixedly connected to the installation rod. The end of the installation rod away from the spring is fixedly connected to the lower end of the waterproof rain cap body. The rainfall detection component is located at the lower end of the waterproof rain cap body. When the rainfall detection component detects that the rainfall is greater than the set value, it drives the waterproof rain cap body to move downwards, compressing the spring and blocking the upper end of the chimney.
[0006] Preferably, the rainfall detection component includes two detection modules, which are symmetrically installed at the lower end of the waterproof rain cap body.
[0007] Preferably, the detection module includes a connecting rod and a water receiving tank. One end of the connecting rod is connected to the waterproof rain cap body, and the other end is connected to the water receiving tank. The water receiving tank has a collection chamber for collecting rainwater. The upper end of the collection chamber has a water inlet that communicates with the outside. The bottom of the water receiving tank has a water outlet.
[0008] Preferably, the detection module further includes a clearing mechanism for clearing the water outlet to prevent it from becoming blocked.
[0009] Preferably, the unblocking mechanism includes an unblocking component and a transmission component. The unblocking component is movably installed in the collection chamber near the water outlet. The transmission component drives the unblocking component to unblock the water outlet during the downward displacement of the water tank.
[0010] Preferably, the unblocking component includes an unblocking rod, a second spring, and a fixing block. The fixing block is fixedly disposed inside the collection chamber. The fixing block has a movable hole that mates with the unblocking rod. The unblocking rod has a limit ring. The second spring is fitted onto the unblocking rod. One end of the second spring abuts against the limit ring, and the other end abuts against the side end face of the fixing block. The end of the unblocking rod away from the water outlet is provided with a plurality of transmission teeth, which are connected to the transmission component.
[0011] Preferably, the transmission component includes a limiting block, an L-shaped drive rod, a first transmission gear, a first bevel gear, a second bevel gear, and a second transmission gear. The limiting block is disposed on the outer circumferential surface of the chimney. A mating hole is provided on the upper part of the water receiving tank. The L-shaped drive rod is vertically and movably engaged with the mating hole. The upper end of the L-shaped drive rod is engaged with the limiting block. Several second transmission gears are provided on the section of the L-shaped drive rod located in the collecting cavity. The first transmission gear and the first bevel gear are coaxially and rotatably disposed in the collecting cavity through a rotating shaft. The first transmission gear meshes with the second transmission gear. The second bevel gear and the second transmission gear are coaxially and rotatably disposed in the collecting cavity through a rotating shaft. The second bevel gear meshes with the first bevel gear, and the second transmission gear meshes with the first transmission gear.
[0012] Preferably, the end of the unblocking rod near the water outlet is provided with a tapered head.
[0013] Preferably, a plurality of auxiliary smoke outlet pipes are provided on the outer circumferential surface of the upper end of the chimney.
[0014] Preferably, the end of the auxiliary smoke outlet pipe furthest from the chimney is inclined downwards.
[0015] Compared with the prior art, the advantages of the present invention are: by setting a rainfall detection component, when the rainfall detection component detects that the rainfall is greater than a set value, it drives the waterproof rain cap body to move downward to compress the spring and block the upper end of the chimney, thereby effectively preventing rainwater from entering the fiberglass chimney when the outside rainfall is heavy. Attached Figure Description
[0016] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 This is a top view of the chimney; Figure 5 This is an enlarged structural schematic diagram of the detection module of the present invention; Figure 6 This is a cross-sectional view of the detection module of the present invention; Figure 7 yes Figure 6 Enlarged diagram of point B in the middle.
[0018] Attached diagram labels: 1. Waterproof rain cap body, 2. Conical head, 3. Auxiliary smoke outlet pipe, 4. Chimney, 5. Water outlet, 6. Water tank, 7. Water inlet, 8. Connecting rod, 9. Mounting rod, 10. Spring 1, 11. L-shaped drive rod, 12. Limiting block, 13. Positioning block, 14. Positioning hole, 15. Transmission gear 2, 16. Bevel gear 1, 17. Rotating shaft 1, 18. Bevel gear 2, 19. Rotating shaft 2, 20. Transmission gear 2, 21. Unblocking rod, 22. Transmission gear 1, 23. Transmission gear 1, 24. Limiting ring, 25. Spring 2, 26. Fixing block. Detailed Implementation
[0019] The following will describe in detail the implementation of the present invention with reference to the accompanying drawings and embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0020] In the description of this invention, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this invention, "a number" means two or more, unless otherwise explicitly specified.
[0022] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0023] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0024] It should also be understood that the terminology used in this specification of embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the invention. As used in this specification of embodiments of the invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0025] As shown in the accompanying drawings, a waterproof rain cap for a fiberglass chimney includes a chimney 4 and a waterproof rain cap body 1, wherein the waterproof rain cap body 1 is installed at the upper end of the chimney 4; characterized in that it further includes a rainfall detection component and an installation component. The installation assembly includes several installation modules. Each installation module includes an installation rod 9, a spring 10, and a positioning block 13. The positioning block 13 is disposed on the outer circumferential surface of the upper end of the chimney 4. The positioning block 13 is provided with a positioning hole 14. One end of the spring 10 is fixedly connected to the positioning hole 14, and the other end is fixedly connected to the installation rod 9. The end of the installation rod 9 away from the spring 10 is fixedly connected to the lower end of the waterproof rain cap body 1. The rainfall detection component is located at the lower end of the waterproof rain cap body 1. When the rainfall detection component detects that the rainfall is greater than the set value, it drives the waterproof rain cap body 1 to move downward to compress the spring 10 and block the upper end of the chimney 4.
[0026] In the above solution, by setting a rainfall detection component, when the rainfall detection component detects that the rainfall is greater than the set value, it drives the waterproof rain cap body to move downwards to compress the spring and block the upper end of the chimney, thereby effectively preventing rainwater from entering the fiberglass chimney when the outside rainfall is heavy.
[0027] In another embodiment of the present invention, the rainfall detection component includes two detection modules, which are symmetrically installed at the lower end of the waterproof rain cap body 1. Specifically, each detection module includes a connecting rod 8 and a water collection tank 6. One end of the connecting rod 8 is connected to the waterproof rain cap body 1, and the other end is connected to the water collection tank 6. The water collection tank 6 has a collection chamber for collecting rainwater, and an inlet 7 communicating with the outside is provided at the upper end of the collection chamber. The bottom of the water collection tank 6 has a water outlet 5. Furthermore, in order to prevent the water outlet from being blocked by dust or other impurities after a period of time, which would prevent the detection module from resetting, the detection module also includes a clearing mechanism for clearing the water outlet 5 to prevent it from being blocked.
[0028] In this embodiment, specifically, the unblocking mechanism includes an unblocking component and a transmission component. The unblocking component is movably installed in the collection chamber near the water outlet 5. The transmission component drives the unblocking component to unblock the water outlet 5 during the downward displacement of the water tank 6.
[0029] The unblocking component includes an unblocking rod 21, a second spring 25, and a fixing block 26. The fixing block 26 is fixedly installed inside the collection chamber and has a movable hole that mates with the unblocking rod 21. The unblocking rod 21 is provided with a limit ring 24. The second spring 25 is fitted onto the unblocking rod 21, with one end abutting against the limit ring 24 and the other end abutting against the side end face of the fixing block 26. The end of the unblocking rod 21 away from the water outlet 5 is provided with several transmission teeth 22, which are connected to the transmission component. Further, the transmission component includes a limit block 12, an L-shaped drive rod 11, a transmission gear 23, a bevel gear 16, a second bevel gear 18, and transmission teeth. Wheel 20, the limiting block 12 is set on the outer circumferential surface of the chimney 4, the water receiving tank 6 is provided with a mating hole at the upper part, the L-shaped drive rod 11 is vertically movable with the mating hole, the upper end of the L-shaped drive rod 11 is engaged with the limiting block 12, the section of the L-shaped drive rod 11 located in the collecting cavity is provided with a plurality of transmission teeth 25, the transmission gear 1 23 and the bevel gear 16 are rotatably set in the collecting cavity through the rotating shaft 17, the transmission gear 1 23 meshes with the transmission teeth 25, the bevel gear 2 18 and the transmission gear 20 are rotatably set in the collecting cavity through the rotating shaft 29, the bevel gear 2 18 meshes with the bevel gear 16, and the transmission gear 20 meshes with the transmission teeth 22. When the water tank moves downward, the upper end of the L-shaped drive rod engages with the limit block 12, causing the L-shaped drive rod to move upward relative to the water tank. This drives the transmission gear 2 and bevel gear 1 to rotate. The bevel gear 1 drives the bevel gear 2 and transmission gear 1 to rotate. The rotation of transmission gear 1 then drives one end of the unblocking rod to be inserted into the water outlet hole to clean out the dust and impurities inside the water outlet hole, ensuring smooth water flow. When the water tank moves upward and resets, the unblocking rod resets under the action of spring 2.
[0030] In order to allow the unblocking rod to be smoothly inserted into the water outlet hole, a tapered head 2 is provided at the end of the unblocking rod 21 near the water outlet hole 5.
[0031] In the above scheme, when the outside rainfall is heavy, the amount of rainwater entering the water tank through the inlet is greater than the amount of rainwater discharged from the outlet. The amount of rainwater in the water tank continuously increases, and its weight continuously increases until the total weight of the water tank, the rainwater in the collection chamber, and the waterproof cap body exceeds the elastic force of spring one. The waterproof cap body then moves downwards and blocks the chimney. When the outside rainfall decreases or stops, the amount of rainwater entering the water tank through the inlet is less than the amount of rainwater discharged from the outlet. The amount of rainwater in the water tank continuously decreases, and its weight continuously decreases until… The total weight of the water tank, the rainwater collection chamber, and the waterproof cap is less than the elastic force of the spring. Under the action of the spring, the entire rain detection component moves upward, and the chimney is no longer blocked, allowing it to work normally. This enables the chimney to be automatically and promptly blocked when the rainfall is heavy, preventing rainwater from entering the chimney. When the rainfall decreases or the rain stops, the chimney can automatically open and start working. Furthermore, the downward movement of the water tank drives the unblocking mechanism to unclog the water outlet, effectively preventing blockage and ensuring the normal operation of the rain detection component.
[0032] In another embodiment of the present invention, a plurality of auxiliary smoke outlet pipes 3 are provided on the outer circumferential surface of the upper end of the chimney 4; and the end of the auxiliary smoke outlet pipe 3 away from the chimney 4 is inclined downward (the downwardly inclined auxiliary smoke outlet pipe can effectively prevent rainwater from entering the chimney through the auxiliary smoke outlet pipe). When the outside rainfall is heavy, the rainfall detection component blocks the upper end of the chimney, and the smoke inside the chimney can drift out through the auxiliary smoke outlet pipe. Through the above solution, on the one hand, when the weather is good, the smoke is directly discharged from the chimney, which effectively ensures the smoke discharge efficiency; on the other hand, when the outside rainfall is heavy, the smoke inside the chimney can drift out through the auxiliary smoke outlet pipe, ensuring normal smoke discharge.
[0033] The above description only illustrates the preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. All modifications made within the scope of the independent claims of this invention are also within the scope of protection of this invention.
Claims
1. A waterproof rain cap for a fiberglass chimney, comprising a chimney (4) and a waterproof rain cap body (1), wherein the waterproof rain cap body (1) is installed at the upper end of the chimney (4); characterized in that: It also includes rainfall detection components and installation components; The installation assembly includes several installation modules, each including an installation rod (9), a spring (10), and a positioning block (13). The positioning block (13) is located on the outer circumferential surface of the upper end of the chimney (4), and a positioning hole (14) is provided on the positioning block (13). One end of the spring (10) is fixedly connected to the positioning hole (14), and the other end is fixedly connected to the installation rod (9). The end of the installation rod (9) away from the spring (10) is fixedly connected to the lower end of the waterproof rain cap body (1). The rainfall detection component is located at the lower end of the waterproof rain cap body (1). When the rainfall detection component detects that the rainfall is greater than the set value, it drives the waterproof rain cap body (1) to move downward to compress the spring (10) and block the upper end of the chimney (4).
2. The waterproof rain cap for fiberglass chimneys according to claim 1, characterized in that: The rainfall detection component includes two detection modules, which are symmetrically installed at the lower end of the waterproof rain cap body (1).
3. A waterproof rain cap for fiberglass chimneys according to claim 2, characterized in that: The detection module includes a connecting rod (8) and a water receiving tank (6). One end of the connecting rod (8) is connected to the waterproof rain cap body (1), and the other end is connected to the water receiving tank (6). The water receiving tank (6) has a collection chamber for collecting rainwater inside. The upper end of the collection chamber has a water inlet (7) that communicates with the outside. The bottom of the water receiving tank (6) has a water outlet (5).
4. A waterproof rain cap for fiberglass chimneys according to claim 3, characterized in that: The detection module also includes a dredging mechanism, which is used to dredge the water outlet (5) to prevent the water outlet (5) from being blocked.
5. A waterproof rain cap for fiberglass chimneys according to claim 4, characterized in that: The unblocking mechanism includes an unblocking component and a transmission component. The unblocking component is movably installed in the collection chamber near the water outlet (5). The transmission component drives the unblocking component to unblock the water outlet (5) during the downward displacement of the water tank (6).
6. A waterproof rain cap for fiberglass chimneys according to claim 5, characterized in that: The unblocking component includes an unblocking rod (21), a second spring (25), and a fixing block (26). The fixing block (26) is fixedly installed inside the collection chamber. The fixing block (26) has a movable hole that cooperates with the unblocking rod (21). The unblocking rod (21) is provided with a limiting ring (24). The second spring (25) is fitted on the unblocking rod (21). One end of the second spring (25) abuts against the limiting ring (24), and the other end abuts against the side end face of the fixing block (26). The end of the unblocking rod (21) away from the water outlet (5) is provided with a plurality of transmission teeth (22). The transmission teeth (22) are connected to the transmission component.
7. A waterproof rain cap for fiberglass chimneys according to claim 6, characterized in that: The transmission component includes a limiting block (12), an L-shaped drive rod (11), a first transmission gear (23), a first bevel gear (16), a second bevel gear (18), and a second transmission gear (20). The limiting block (12) is set on the outer circumferential surface of the chimney (4). The upper part of the water receiving tank (6) is provided with a mating hole. The L-shaped drive rod (11) is vertically movable with the mating hole. The upper end of the L-shaped drive rod (11) is engaged with the limiting block (12). The L-shaped drive rod (11) is located in the collecting cavity. A section is provided with several transmission gears (15). The transmission gear (23) and bevel gear (16) are rotatably disposed in the collection cavity through a rotating shaft (17). The transmission gear (23) meshes with the transmission gear (15). The bevel gear (18) and transmission gear (20) are rotatably disposed in the collection cavity through a rotating shaft (19). The bevel gear (18) meshes with the bevel gear (16). The transmission gear (20) meshes with the transmission gear (22).
8. A waterproof rain cap for fiberglass chimneys according to claim 6, characterized in that: The end of the unblocking rod (21) near the water outlet (5) is provided with a conical head (2).
9. A waterproof rain cap for fiberglass chimneys according to claim 1, characterized in that: Several auxiliary smoke outlet pipes (3) are provided on the outer circumference of the upper end of the chimney (4).
10. A waterproof rain cap for fiberglass chimneys according to claim 9, characterized in that: The auxiliary smoke outlet pipe (3) is inclined downward at the end away from the chimney (4).