Corrugated smoke tube and range hood system

Abstract

The utility model discloses a corrugated smoke pipe and a range hood system, the pipe wall of the corrugated smoke pipe comprises a plurality of telescopic corrugated wrinkles, the corrugated wrinkles comprise a first side wall and a second side wall, the length of the first side wall and the length of the second side wall are the distance B of the smoke pipe, the diameter D of the first smoke pipe and the diameter Db of the second smoke pipe meet the condition that Db = D-2 * B * sin alpha, the diameter D of the first smoke pipe represents the length between two wave crests, oppositely arranged, of the V-shaped corrugation, and the diameter Db of the second smoke pipe represents the length between two wave troughs, oppositely arranged, of the V-shaped corrugation; the included angle alpha, the smoke pipe distance B and the first smoke pipe diameter D meet the condition that 0.95 D < = D-2. B.sin alpha < D. According to the corrugated smoke pipe, by limiting the smoke pipe distance B of the corrugated smoke pipe and the included angle alpha of the corrugated side wall, it is ensured that the relation among the included angle alpha, the smoke pipe distance B and the first smoke pipe diameter D meets the condition that 0.95 D < = D-2. B.sin alpha < D, and therefore the cost can be reduced while the smoke exhaust effect of the corrugated smoke pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a corrugated smoke pipe and a range hood system. Background Art

[0002] The range hood has become an indispensable kitchen appliance for removing oil fumes in the kitchen. A section of exhaust pipe needs to be connected between the air outlet of the range hood and the public exhaust duct to ensure that the oil fumes are smoothly discharged to the outside.

[0003] In the related art, most of them use aluminum foil tubes as smoke exhaust pipes. The surface of such aluminum foil tubes is easy to form wrinkles and can be stretched and folded. However, when the fluid formed by oil smoke flows through the wrinkled surface of the smoke exhaust pipe, the fluid is easily disturbed due to the obstruction of the wrinkles, resulting in increased flow resistance of the fluid and poor smoke exhaust effect of the smoke exhaust pipe. Utility Model Content

[0004] The utility model provides a corrugated smoke pipe and range hood system, which effectively reduces the resistance of the corrugated smoke pipe's pleated surface to the smoke fluid and the range hood noise by shortening the smoke pipe spacing of the corrugated smoke pipe and expanding the effective diameter of the corrugated smoke pipe, thereby ensuring that the smoke exhaust effect of the corrugated smoke pipe is improved and the cost of the corrugated smoke pipe can be reduced, thus achieving a compromise between performance and cost.

[0005] According to one aspect of an embodiment of the utility model, a corrugated smoke tube is provided, wherein the tube wall of the corrugated smoke tube comprises a plurality of retractable corrugated folds, the corrugated folds comprise a first side wall and a second side wall, the first side wall and the second side wall are folded inwardly of the tube to form a V-shaped corrugation, the lengths of the first side wall and the second side wall are both the smoke tube spacing B, the relationship between the first smoke tube diameter D and the second smoke tube diameter Db satisfies Db=D-2·B·sinα, wherein α represents the angle between the first side wall and the second side wall and the axial direction of the corrugated smoke tube, the first smoke tube diameter D represents the length between two wave crests of the V-shaped corrugation arranged oppositely, the second smoke tube diameter Db represents the length between two wave troughs of the V-shaped corrugation arranged oppositely, and the relationship between the angle α, the smoke tube spacing B and the first smoke tube diameter D satisfies 0.95D≤D-2·B·sinα<D.

[0006] In a further technical solution, the smoke tube spacing B satisfies 0mm<B≤14mm.

[0007] In a further technical solution, an angle α between the first side wall or the second side wall and the axial direction of the corrugated smoke tube satisfies 0°<α<90°.

[0008] In a further technical solution, the material of the corrugated smoke tube is any one of plastic, aluminum foil and galvanized iron sheet.

[0009] According to another aspect of the embodiment of the utility model, a range hood system is provided, including a range hood and the above-mentioned corrugated smoke duct, one end of the corrugated smoke duct is connected to the smoke outlet end of the range hood, and the other end of the corrugated smoke duct extends to the outside of the wall.

[0010] In a further technical solution, one end of the corrugated smoke pipe is sealedly connected to one end of the adapter smoke pipe, and the smoke outlet end of the range hood is sealedly connected to the other end of the adapter smoke pipe.

[0011] In a further technical solution, the corrugated smoke tube and the adapter smoke tube are an integrally formed structure.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By limiting the smoke tube spacing B of the corrugated smoke tube and the angle α of the corrugated side wall, it is ensured that the relationship between the angle α, the smoke tube spacing B and the first smoke tube diameter D satisfies 0.95D≤D-2·B·sinα<D, thereby improving the smoke exhaust effect of the corrugated smoke tube while reducing the noise of the range hood. Compared with the traditional corrugated smoke tube, the waveform design corresponding to the above relationship is based on the expansion of the effective ventilation diameter of the corrugated smoke tube, and the resistance of the corrugated smoke tube pleated surface to the oil fume fluid is reduced. In addition, while ensuring the ventilation effect of the corrugated smoke tube, the shortening of the smoke tube spacing B further reduces the consumables at the pleats, and the cost increase is relatively low, achieving a compromise between performance and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the corrugated smoke tube of the utility model;

[0015] Figure 2 It is a partial schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the assembly structure of the utility model.

[0017] The markings of the components in the accompanying drawings are as follows:

[0018] 1. Corrugated smoke pipe; 11. First side wall; 12. Second side wall; 2. Transfer smoke pipe; 3. Range hood. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] See also Figure 1 and Figure 2 The utility model provides a corrugated smoke tube, wherein the tube wall of the corrugated smoke tube 1 includes a plurality of retractable corrugated folds, the corrugated folds include a first side wall 11 and a second side wall 12, the first side wall 11 and the second side wall 12 are folded inwardly of the tube to form a V-shaped corrugation, the lengths of the first side wall 11 and the second side wall 12 are both equal to the smoke tube spacing B, the relationship between the first smoke tube diameter D and the second smoke tube diameter Db satisfies Db=D-2·B·sinα, wherein α represents the angle between the first side wall 11 and the second side wall 12 and the axial direction of the corrugated smoke tube 1, the first smoke tube diameter D represents the length between two wave crests of the V-shaped corrugation arranged oppositely, the second smoke tube diameter Db represents the length between two wave troughs of the V-shaped corrugation arranged oppositely, and the relationship between the angle α, the smoke tube spacing B and the first smoke tube diameter D satisfies 0.95D≤D-2·B·sinα<D.

[0021] It should be noted that if Figure 2 As shown, the first side wall 11 and the second side wall 12 are the folds of the corrugated folds cut along the axial direction of the smoke tube, and the V-shaped corrugations are arranged between each two steel rings of the corrugated smoke tube 1. The first smoke tube diameter D represents the length between the two relatively arranged wave crests of the V-shaped corrugation, which is the effective ventilation diameter of the corrugated smoke tube 1 when it is actually designed. Compared with the traditional smoke tube, the corrugated smoke tube 1 in the utility model improves the effective ventilation diameter in the corrugated smoke tube 1 by changing the smoke tube spacing B while the steel ring spacing remains unchanged, thereby improving the ventilation efficiency of the corrugated smoke tube 1. And when the functional relationship Db=D-2·B·sinα is satisfied between the first smoke tube diameter D and the second smoke tube diameter Db, it is possible to reduce the consumables of aluminum foil and reduce costs while improving the ventilation performance of the corrugated smoke tube, thereby achieving a compromise between performance and cost.

[0022] The smoke tube spacing B satisfies 0mm<B≤14mm. In an exemplary embodiment, when the smoke tube spacing B satisfies 0mm<B≤14mm, the relationship between the angle α, the smoke tube spacing B and the first smoke tube diameter D can be achieved to satisfy 0.95D≤D-2·B·sinα<D, thereby improving the ventilation performance of the corrugated smoke tube while reducing the consumables of aluminum foil and reducing costs. In this embodiment, preferably, the smoke tube spacing B is 14mm.

[0023] The included angle α between the first side wall 11 or the second side wall 12 and the axial direction of the corrugated smoke tube 1 satisfies 0°<α<90°.

[0024] The material of the corrugated smoke tube 1 is any one of plastic, aluminum foil and galvanized iron. In an exemplary embodiment, the material of the corrugated smoke tube 1 is aluminum foil, which is not easy to burn, thereby improving the safety of the corrugated smoke tube. In addition, the aluminum foil smoke tube is relatively soft, and compared with the hard plastic tube, the aluminum foil tube has less noise during ventilation, making the range hood more comfortable to use.

[0025] According to another aspect of the embodiment of the utility model, a range hood system is provided, including a range hood 3 and the above-mentioned corrugated smoke duct 1, one end of the corrugated smoke duct 1 is connected to the smoke outlet end of the range hood 3, and the other end of the corrugated smoke duct 1 extends to the outside of the wall.

[0026] One end of the corrugated smoke pipe 1 is sealed and connected to one end of the adapter smoke pipe 2 , and the smoke outlet end of the range hood 3 is sealed and connected to the other end of the adapter smoke pipe 2 .

[0027] The corrugated smoke tube 1 and the transfer smoke tube 2 are an integrally formed structure. Figure 3 As shown, the corrugated smoke tube 1 and the adapter smoke tube 2 are integrally formed, which avoids the problem of insufficient sealing of the connection due to detachable installation, prevents smoke from overflowing, and has good practicality.

[0028] Working principle: The corrugated smoke pipe 1 has a plurality of retractable corrugated folds, which can be flexibly bent and convenient for transportation. However, the above-mentioned folded folds will form an uneven surface, which will cause the corresponding effective use diameter of the corrugated smoke pipe 1 to be smaller than the designed use diameter during actual use. Especially in the kitchen, the corrugated smoke pipe 1 usually needs to turn and connect to the public flue, and there may be redundant parts. The redundant smoke pipe will always be in a compressed state, which will obviously cause the actual outlet diameter to be smaller than the designed use diameter, thereby increasing the resistance in the pipe, increasing the motor speed, and increasing the noise. In addition, the inward folding method will also generate secondary noise, that is, the noise generated by the fluid turbulence caused by the folds in the smoke pipe, which further increases the noise of the range hood.

[0029] The first smoke tube diameter D mentioned above can represent the design ventilation diameter of the corrugated smoke tube 1, and the second smoke tube diameter Db can represent the actual effective ventilation diameter of the corrugated smoke tube 1. It is an ideal design goal for the corrugated smoke tube 1 to reach the first smoke tube diameter D after being straightened. However, in actual use, it is necessary to consider the problem of convenient folding and transportation. The effective use diameter of the corrugated smoke tube is the second smoke tube diameter Db, where Db = D-2·B·sinα. In order to make the actual resistance of the corrugated smoke tube 1 similar to that of the ideal smoke tube, while keeping the first smoke tube diameter D unchanged, the smoke tube spacing B satisfies 0.95D≤D-2·B·sinα<D, which solves the contradiction between the smoke tube cost and the smoke exhaust performance caused by the shortened distance, that is, solves the situation where the smoke exhaust effect is improved but the cost increases when the spacing is shortened. By shortening the smoke tube spacing and satisfying 0.95D≤D-2·B·sinα<D, a compromise between smoke exhaust performance and smoke tube cost is achieved, and the smoke exhaust effect is similar to that of the ideal smoke tube, while the cost increase is controllable and far lower than the cost of stainless steel straight smoke tubes. It should be noted that the present application does not make any specific limitation on the smoke tube spacing B. Under the condition that the basic diameter remains unchanged, any design that reduces the resistance of the corrugated smoke tube by shortening the spacing or quantitatively shortening the spacing should fall within the protection scope of the present utility model.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A corrugated smoke tube, characterized in that: The tube wall of the corrugated smoke tube (1) comprises a plurality of retractable corrugated folds, the corrugated folds comprising a first side wall (11) and a second side wall (12), the first side wall (11) and the second side wall (12) being folded inwardly of the tube to form V-shaped corrugations, the lengths of the first side wall (11) and the second side wall (12) being both equal to the smoke tube spacing B, the relationship between the first smoke tube diameter D and the second smoke tube diameter Db satisfies Db=D-2·B·sinα, wherein α represents the angle between the first side wall (11) and the second side wall (12) and the axial direction of the corrugated smoke tube (1), the first smoke tube diameter D represents the length between two wave crests of the V-shaped corrugation arranged oppositely, the second smoke tube diameter Db represents the length between two wave troughs of the V-shaped corrugation arranged oppositely, and the relationship between the angle α, the smoke tube spacing B and the first smoke tube diameter D satisfies 0.95D≤D-2·B·sinα<D.

2. A corrugated smoke tube according to claim 1, characterized in that: The smoke tube spacing B satisfies 0mm<B≤14mm.

3. The corrugated smoke tube according to claim 1, characterized in that: An included angle α between the first side wall (11) or the second side wall (12) and the axial direction of the corrugated smoke tube (1) satisfies 0°<α<90°.

4. The corrugated smoke tube according to claim 1, characterized in that: The material of the corrugated smoke tube (1) is any one of plastic, aluminum foil and galvanized iron sheet.

5. A range hood system, characterized in that: It comprises a range hood (3) and a corrugated smoke pipe (1) as claimed in any one of claims 1 to 4, wherein one end of the corrugated smoke pipe (1) is connected to the smoke outlet end of the range hood (3), and the other end of the corrugated smoke pipe (1) extends to the outside of the wall.

6. The range hood system according to claim 5, characterized in that: One end of the corrugated smoke pipe (1) is sealedly connected to one end of the adapter smoke pipe (2), and the smoke outlet end of the range hood (3) is sealedly connected to the other end of the adapter smoke pipe (2).

7. The range hood system according to claim 6, characterized in that: The corrugated smoke tube (1) and the adapter smoke tube (2) are an integrally formed structure.

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