Flashing board for chimney smoke outlet
By designing adjustable blades and a magnetic positioning structure, the problem of inconvenient blade replacement in rain caps is solved, achieving efficient installation and portable storage, and reducing resource waste.
Patent Information
- Application Number
- CN202422205580.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The replacement of the rainproof louvers in existing chimney rain caps is inconvenient and the replacement process is cumbersome, which can easily lead to economic losses and waste of resources.
The design incorporates a first and second blade with adjustable lengths, along with magnetic components and scale lines, enabling adjustable blade settings and quick installation.
It improves the practicality and installation efficiency of the blades, simplifies manufacturing, enhances the portability of storage and transportation, and reduces replacement costs.
Smart Images

Figure CN223610146U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rainproof device technical field, concretely relates to a rain shield for chimney exhaust port. BACKGROUND
[0002] The main function of the chimney is to effectively discharge the indoor flue gas, waste gas or steam to the outdoor, reduce the influence on indoor air quality, mainly be applied to the area such as shopping mall and restaurant, and its discharge efficiency and safety are particularly important. But in actual use, the chimney faces the challenge of multiple environmental factors, especially the problem of rainwater intrusion. Rainwater intrusion not only reduces the discharge efficiency of the chimney, but also may corrode the internal structure, increase the maintenance cost.
[0003] The rainproof cap is a device installed at the top of the chimney, and its main function is to prevent rainwater and other foreign substances from entering the chimney. A well-designed rainproof cap can effectively isolate rainwater while not affecting the discharge of flue gas. Among them, the rainproof louver is an important part inside the rainproof cap, which is usually composed of a series of vertically or obliquely arranged blades. The design of these blades not only ensures that rainwater cannot enter, but also allows flue gas to be discharged smoothly. The size, shape and arrangement of the blades directly affect the rainproof effect and discharge efficiency.
[0004] In the prior art, the size of the rainproof cap is different, and when the blades of the rainproof louver need to be replaced, accurate measurement of the size is often required, and then the appropriate size of the blade is purchased for installation, which leads to a cumbersome replacement process of the blade, and the size of the purchased blade is prone to have certain errors, and the user will directly replace the entire rainproof cap for convenience, which causes economic loss and waste of resources. SUMMARY
[0005] The present application provides a rain shield for chimney exhaust port, which solves the technical problem of inconvenient replacement of the blades of the rainproof louver in the chimney rainproof cap due to size problems.
[0006] The rain shield for chimney exhaust port provided by the present application comprises a first blade provided with a first sliding groove and a second blade provided with a first protrusion. The first sliding groove extends along the length direction of the first blade, and the first protrusion is slidably arranged in the first sliding groove. The surface of the second blade is attached to the surface of the first blade, and the second blade and the first blade extend along the same length direction.
[0007] Preferably, the first blade is provided with a first slot, and the second blade is adapted to be inserted into the first slot. The first sliding groove is arranged on the inner wall of the first slot. When the first protrusion slides into the first sliding groove, the outer surface of the second blade is attached to the inner wall of the first slot.
[0008] By adopting the technical scheme, the first leaf and the second leaf which can slide relative to each other to adjust the length of the rainproof louver are arranged on the rainproof cap, the length of the leaf is adjustable, the practicability and applicability of the product are improved, and the simple structure is easy to manufacture.
[0009] Preferably, the size of the second leaf is the same as that of the first slot, and the cross-sectional shape of the second leaf is the same as that of the first slot.
[0010] By adopting the technical scheme, the size of the second leaf is the same as that of the first slot, the second leaf is accommodated, the portability of the accommodation and transportation is improved, and the simple structure is easy to manufacture.
[0011] Preferably, the first sliding groove is provided with a first magnetic member extending along the length direction of the first sliding groove, and the first protrusion is embedded with a second magnetic member, and when the first protrusion slides into the first sliding groove, the second magnetic member and the first magnetic member are magnetically attracted.
[0012] Preferably, the second protrusion extends along the length direction of the second leaf, and the second protrusion is provided with a scale line extending along the length direction.
[0013] By adopting the technical scheme, the first magnetic member and the second magnetic member which have magnetic attraction to each other are arranged on the first sliding groove and the first protrusion, the positioning function of the second leaf on the first leaf is realized, the rapid assembly of multiple leaves is completed through the arrangement of the scale line, and the installation efficiency of the leaves is improved.
[0014] One or more technical solutions provided in the application have at least the following technical effects or advantages:
[0015] 1. The first leaf and the second leaf which can slide relative to each other to adjust the length of the rainproof louver are arranged on the rainproof cap, the length of the leaf is adjustable, the practicability and applicability of the product are improved, and the simple structure is easy to manufacture;
[0016] 2. The size of the second leaf is the same as that of the first slot, the second leaf is accommodated, the portability of the accommodation and transportation is improved, and the simple structure is easy to manufacture;
[0017] 3. The first magnetic member and the second magnetic member which have magnetic attraction to each other are arranged on the first sliding groove and the first protrusion, the positioning function of the second leaf on the first leaf is realized, the rapid assembly of multiple leaves is completed through the arrangement of the scale line, and the installation efficiency of the leaves is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 A perspective view of a rainproof cap of a rain shield for a chimney smoke outlet is provided in the present application;
[0020] Figure 2 A perspective view of a first blade of a rain shield for a chimney smoke outlet is provided in the present application;
[0021] Figure 3 A perspective view of a second blade of a rain shield for a chimney smoke outlet is provided in the present application;
[0022] Figure 4 An exploded view of a first blade and a second blade of a rain shield for a chimney smoke outlet in an installed state is provided in the present application;
[0023] Figure 5 An exploded view of a first blade and a second blade of a rain shield for a chimney smoke outlet in a storage state is provided in the present application;
[0024] Figure 6 A sectional view of a first blade and a second blade of a rain shield for a chimney smoke outlet is provided in the present application.
[0025] The reference signs are as follows: 1, first blade; 11, first upper bottom plate body; 111, first sliding groove; 12, first groove; 2, second blade; 21, second upper bottom plate body; 22, first protrusion; 221, scale line; 31, first magnetic member; 32, second magnetic member; 4, rainproof cap; 5, rain shield. DETAILED DESCRIPTION
[0026] The present application provides a rain shield for a chimney smoke outlet, which is used to solve the technical problem that the blades of the rainproof louver in the rainproof cap of the chimney are inconvenient to replace due to size problems in the prior art.
[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0028] It should be noted that the terms "first", "second", and the like, in the description and in the claims of the present application and in the above description of the drawings are used only to distinguish similar objects and do not necessarily have a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.
[0029] Embodiment 1
[0030] As Figures 1 to 6 Embodiments of the present application provide a rain shield for a chimney exhaust port, comprising: a first blade 1 provided with a first sliding groove 111 and a second blade 2 provided with a first protrusion 22; the first sliding groove 111 extends along the length direction of the first blade 1, and the first protrusion 22 is slidably arranged in the first sliding groove 111; the surface of the second blade 2 is attached to the surface of the first blade 1, and the second blade 2 and the first blade 1 extend along the same length direction.
[0031] More preferably, in the embodiments provided by the present application, as Figure 1 , Figure 2 and Figure 3As shown, a rain shield 5 for a chimney exhaust port comprises a first leaf 1 and a second leaf 2, the first leaf 1 is provided with a first groove 12, the side wall of the first groove 12 is provided with a first sliding groove 111, the outer side wall of the second leaf 2 is provided with a first protrusion 22, the second leaf 2 is slid into the first sliding groove 111 through the first protrusion 22 to realize sliding in the first groove 12, wherein the first sliding groove 111 can be a dovetail groove, the first protrusion 22 can be a dovetail-shaped protrusion, the second leaf 2 and the first leaf 1 combined constitute a rain shield 5 for mounting on a rainproof cap 4, the bottom plate of the first leaf 1 is a right trapezoid, the upper base, the lower base and the non-right angle waist of the right trapezoid are provided with plate bodies constituting the first groove 12, the thicknesses of the three plate bodies and the bottom plate are the same, the first sliding groove 111 is opened on the first upper base plate body 11, and the first sliding groove 111 extends along the length direction of the first upper base plate body 11 and is the same as the length of the first upper base plate body 11, the bottom plate shape of the second leaf 2 is the same as that of the first leaf 1 and is also a right trapezoid, the upper base, the lower base and the non-right angle waist of the right trapezoid bottom plate of the second leaf 2 are also provided with plate bodies, the first protrusion 22 is provided on the outer surface of the second upper base plate body 21, the first protrusion 22 extends along the length direction of the second upper base plate body 21 and is the same as the length of the second upper base plate body 21; when the second leaf 2 is slid into the first groove 12, the outer surface of the second leaf 2 is attached to the inner surface of the first groove 12. As shown in Figure 6 As shown, the cross sections of the first leaf 1 and the second leaf 2 are both L-shaped.
[0032] In use, as shown, Figure 5 The non-right angle waist of the second leaf 2 can be placed parallel to the non-right angle waist of the first leaf 1, the second leaf 2 is slid into the first groove 12 through the first protrusion 22 and the first sliding groove 111 to complete the storage of the second leaf 2 and the first leaf 1; as shown, Figure 4 When it is needed to be mounted on the rainproof cap 4, the second leaf 2 is pulled out of the first groove 12, then the direction of the second leaf 2 is turned over to make the bottom plate of the second leaf 2 attached to the bottom plate of the first leaf 1, the second leaf 2 is slid into the first groove 12, and the length of the combination of the second leaf 2 and the first leaf 1 is adjusted by sliding the second protrusion, when the length is adjusted to a proper length, the first leaf 1 and the second leaf 2 are fixed (welded, bolted or other fixing methods) on the rainproof cap 4 through the two non-right angle waists.
[0033] In this embodiment, by setting the leaves of the rainproof louver on the rainproof cap 4 as the first leaf 1 and the second leaf 2 which can slide and adjust the length, the adjustable length setting of the leaves is realized, and the size of the second leaf 2 and the first groove 12 is the same, the storage of the second leaf 2 is realized, the portability of storage and transportation is improved, and the simple structure is easy to produce and manufacture.
[0034] Embodiment 2
[0035] Further, on the basis of the above embodiment 1, as shown in Figure 2 and Figure 3 The bottom of the first chute 111 is provided with a first magnetic member 31 extending along the length direction of the first chute 111, the length of the first magnetic member 31 is the same as the length of the first chute 111, a circular second magnetic member 32 is embedded on the second lug near the right angle waist of the bottom plate of the second blade 2, the first magnetic member 31 and the second magnetic member 32 are a combination of magnets or a combination of magnets and magnetic metal with magnetic attraction to each other, and the second lug is provided with a scale line 221 extending along the length direction of the second lug, which covers the entire length direction of the second lug.
[0036] In use, the second blade 2 can be positioned on the first blade 1 through the magnetic force of the first magnetic member 31 and the second magnetic member 32, and then the other first blade 1 and the second blade 2 can be quickly adjusted to the same scale length by reading the scale line 221, realizing the quick installation of multiple blades.
[0037] In this embodiment, the positioning function of the second blade 2 on the first blade 1 is realized by setting the first magnetic member and the second magnetic member 32 with magnetic attraction to each other on the first chute 111 and the first lug 22, and the quick assembly of multiple blades is completed through the setting of the scale line 221, improving the installation efficiency of the blades.
[0038] It should be noted that the above sequence of the embodiments of the present application is only for description, not representing the advantages and disadvantages of the embodiments. The above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from the order in the embodiments and still achieve the desired result. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are possible or can be advantageous.
[0039] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
[0040] The present application and the drawings are only exemplary description of the present application, and are considered to cover any and all modifications, changes, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the scope of the present application. Thus, if these modifications and changes of the present application belong to the scope of the present application and its equivalent technology, the present application intends to include these modifications and changes.
Claims
1. A rain shield for a chimney outlet, characterised in that: The first blade (1) is provided with a first sliding groove (111), and the second blade (2) is provided with a first protrusion (22); the first sliding groove (111) extends along the length direction of the first blade (1), and the first protrusion (22) is slidably arranged in the first sliding groove (111); The surface of the second blade (2) is attached to the surface of the first blade (1), and the second blade (2) and the first blade (1) extend along the same length direction.
2. A cowling for a smokestack vent as defined in claim 1, wherein, The first blade (1) is provided with a first groove (12), and the second blade (2) is adapted to be inserted into the first groove (12); the first sliding groove (111) is arranged on the inner wall of the first groove (12); when the first protrusion (22) slides into the first sliding groove (111), the outer surface of the second blade (2) is attached to the inner wall of the first groove (12).
3. A cowling for a smokestack vent as defined in claim 2, wherein, The size of the second blade (2) is the same as that of the first groove (12), and the cross-sectional shape of the second blade (2) is the same as that of the first groove (12).
4. A rain shield for a smokestack vent as defined in claim 1, wherein, The bottom of the first sliding groove (111) is provided with a first magnetic member (31) extending along the length direction of the first sliding groove (111), and the first protrusion (22) is embedded with a second magnetic member (32); when the first protrusion (22) slides into the first sliding groove (111), the second magnetic member (32) is magnetically attracted to the first magnetic member (31).
5. A cowling for a smokestack vent as defined in claim 4, wherein, The first protrusion (22) extends along the length direction of the second blade (2), and the first protrusion (22) is provided with a scale line (221) extending along the length direction.