A heat preservation and smoke exhaust device

Abstract

The application discloses a heat preservation and smoke exhaust device, which comprises a smoke exhaust pipe assembly and a smoke suction assembly. The smoke exhaust pipe assembly comprises a pipe and an exhaust fan arranged on the inner side of the pipe. The smoke suction assembly comprises a mounting part arranged on the pipe, a communication part connected with the mounting part, and a smoke suction cover connected with the communication part. When the device is in a non-working state, the smoke suction cover is rotated to the vertical groove direction, the sliding block is moved to the vertical groove direction, and the sliding block reaches the vertical groove through the horizontal groove. Under the action of gravity, the smoke suction cover and the adjusting cylinder are moved downward, the corresponding groove and the through groove are dislocated, the adjusting cylinder and the pipe are adjusted to be disconnected, external air is prevented from entering the room through the pipe and the smoke suction cover, and the problem of indoor temperature reduction is solved.

Description

Technical Field

[0001] This invention relates to the technical field of smoke exhaust channels, and more particularly to a heat-insulating smoke exhaust device. Background Technology

[0002] A fume extraction device is a device used in kitchens to remove cooking fumes. During food processing in the kitchen, a large amount of cooking fumes are generated. The fume extraction device is equipped with a fume extraction hood, which is connected to the external environment through pipes. A fan is installed inside the pipes, which draws the cooking fumes from the fume extraction hood into the inside of the pipes and then transports them outdoors through the pipes.

[0003] In some large canteens, multi-connected smoke exhaust systems are used. In winter, cold air from outside enters the inside of the pipes, and the cold air inside the pipes enters the room through the smoke hood, causing the indoor temperature of the canteen to drop. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem of indoor heat loss in the existing heat preservation and smoke exhaust devices, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a heat preservation and smoke exhaust device.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heat preservation and smoke exhaust device, comprising,

[0008] A smoke exhaust pipe assembly, including a pipe fitting and an exhaust fan disposed inside the pipe fitting; and,

[0009] A smoking assembly includes a mounting portion disposed on the pipe, a connecting member connected to the mounting portion, and a smoking hood connected to the connecting member.

[0010] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the mounting part includes a concave part, the concave part is a tubular structure, a groove is provided on its inner side, and a through groove is also provided on the concave part.

[0011] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the connecting member includes an adjusting cylinder and a slider;

[0012] The adjusting cylinder is slidably disposed on the inner side of the concave part, and a corresponding groove is provided on it;

[0013] The slider is fixed to the outside of the adjusting cylinder;

[0014] The slider is slidably engaged with the inside of the groove, and the adjusting cylinder is slidably connected to the inside of the concave part via the slider.

[0015] In a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the mounting part further includes a booster component, which comprises:

[0016] A column is located inside the groove;

[0017] The first spring is sleeved on the outside of the column;

[0018] The slider has a sleeve hole, and the slider slides through the sleeve hole to be sleeved on the outside of the column. The groove is inverted L-shaped.

[0019] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the smoke hood includes a hood body fixed to the bottom end of the adjusting cylinder and a partition fixed to the inside of the hood body.

[0020] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, it further includes an isolation component, which comprises,

[0021] A transmission part is provided on the pipe fitting;

[0022] A linkage is provided between the transmission part and the connecting member;

[0023] A thermal insulation plate, which is rotatably disposed on the inner side of the pipe fitting;

[0024] When the connecting member rotates, it can drive the insulation plate to rotate through the linkage and transmission parts.

[0025] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the linkage part includes a rotatable linkage column disposed on the pipe, and a snap-fit ​​component disposed between the linkage column and the adjusting cylinder.

[0026] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the transmission part includes a main sprocket located on the outside of the linkage column, and a chain belt connected to the main sprocket.

[0027] As a preferred embodiment of the heat insulation and smoke exhaust device of the present invention, the heat insulation plate includes a follower column, a partition, and a secondary sprocket;

[0028] The follower column is rotatably disposed on the inner side of the pipe fitting, with one end extending to the outer side of the pipe fitting.

[0029] The partition is fixed to the follower column;

[0030] The secondary sprocket is located on the outside of the follower column;

[0031] The main sprocket is connected to the secondary sprocket via a chain belt.

[0032] As a preferred embodiment of the heat preservation and smoke exhaust device of the present invention, the snap-fit ​​component includes a movable column, a protruding structure, a second spring, and a snap-fit ​​block;

[0033] The movable column is slidably mounted on the adjusting cylinder;

[0034] The protruding structure is fixed to the end of the movable column, and a slot is provided at its top.

[0035] The second spring is sleeved on the outside of the movable column, and it is located between the protruding structure and the adjusting cylinder;

[0036] The locking block is fixed to the end of the linkage column, and the locking block corresponds to the position of the locking slot.

[0037] The beneficial effects of this invention are as follows: By setting up a smoke extraction component and an isolation component, when not in operation, the smoke extraction hood is rotated in the direction of the vertical groove, causing the slider to move in the direction of the vertical groove until the slider passes through the horizontal groove and reaches the vertical groove. Under the action of gravity, the smoke extraction hood and the adjusting cylinder move downward, and the corresponding groove and the through groove are misaligned. The adjusting cylinder and the pipe are adjusted to a disconnected state, which prevents external air from entering the room through the pipe and the smoke extraction hood, thus preventing the problem of lowering the indoor temperature. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0039] Figure 1 This is a schematic diagram of the overall structure of the heat preservation and smoke exhaust device of the present invention.

[0040] Figure 2 This is a schematic diagram of the overall internal structure of the heat preservation and smoke exhaust device of the present invention.

[0041] Figure 3 This is a schematic diagram of the installation section of the thermal insulation and smoke exhaust device of the present invention.

[0042] Figure 4 This is a schematic diagram of the interconnected structure of the heat preservation and smoke exhaust device of the present invention.

[0043] Figure 5 This is a schematic diagram of the disconnected state structure of the heat preservation and smoke exhaust device of the present invention.

[0044] Figure 6 This is a cross-sectional view of the overall structure of the heat preservation and smoke exhaust device of the present invention.

[0045] Figure 7 This is a schematic diagram of the thermal insulation plate structure of the thermal insulation and smoke exhaust device of the present invention. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0049] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0050] Example 1

[0051] Reference Figure 1 A schematic diagram of the overall structure of a heat preservation and smoke exhaust device is provided, such as... Figure 1 A heat preservation and smoke exhaust device includes a smoke exhaust pipe assembly 100, including a pipe fitting 101, an exhaust fan 102 disposed inside the pipe fitting 101, and a smoke extraction assembly 200. After installation, one end of the pipe fitting 101 is located indoors and the other end is located outdoors. The end located indoors is closed, and the end located outdoors has an opening. Through the exhaust fan 102, the air inside the pipe fitting 101 can be exhausted through the outdoor opening of the pipe fitting 101, thereby reducing the air pressure inside the pipe fitting 101 and allowing the oil fumes generated during cooking to enter the inside of the pipe fitting 101 through the extraction assembly.

[0052] Specifically, the smoking assembly 200 includes a mounting part 201 disposed on the pipe fitting 101, a connecting member 202 connected to the mounting part 201, and a smoking hood 203 connected to the connecting member 202. The smoking hood 203 is connected to the pipe fitting 101 through the mounting part 201 and the connecting member 202. By adjusting the position of the connecting member 202 on the mounting part 201, the connection between the smoking hood 203 and the pipe fitting 101 can be connected or disconnected.

[0053] Furthermore, the mounting part 201 includes a recessed part 201a, which is a tubular structure. A through groove 201a-2 is also provided on the recessed part 201a. A connecting part 202, an adjusting cylinder 202a, is slidably disposed inside the recessed part 201a and has a corresponding groove 202a-1. By adjusting the position of the connecting part 202 between the recessed parts 201a, the connection between the smoke hood 203 and the pipe fitting 101 can be connected or disconnected. When the corresponding groove 202a-1 and the through groove 201a-2 are aligned, such as... Figure 4 As shown, the internal space of the adjusting cylinder 202a and the pipe fitting 101 is connected. When the positions of the corresponding groove 202a-1 and the through groove 201a-2 are misaligned, as... Figure 5 As shown, the adjusting cylinder 202a and the internal space of the fitting 101 are disconnected.

[0054] Furthermore, the inner diameter of the concave part 201a is adapted to the outer diameter of the adjusting cylinder 202a, that is, the inner arm of the concave part 201a fits against the outer wall of the adjusting cylinder 202a. The inner side wall of the concave part 201a is provided with a groove 201a-1. A slider 202b is fixed on the outer side wall of the adjusting cylinder 202a. The slider 202b slides and engages with the inner side of the groove 201a-1. The adjusting cylinder 202a is slidably connected to the inner side of the concave part 201a through the slider 202b.

[0055] The groove 201a-1 is an inverted L-shape, consisting of a vertical groove 201a-1a and a horizontal groove 201a-1b. When the slider 202b is located inside the vertical groove 201a-1a, the corresponding groove 202a-1 and the through groove 201a-2 are misaligned. When the slider 202b reaches the end of the horizontal groove 201a-1b that is away from the vertical groove 201a-1a, the corresponding groove 202a-1 and the through groove 201a-2 coincide. Thus, by adjusting the position of the slider 202b inside the groove 201a-1, the position of the adjusting groove can be adjusted, thereby adjusting the communication state between the adjusting cylinder 202a and the pipe 101.

[0056] Among them, the number of grooves 201a-1 in the concave part 201a is two, and the number of sliders 202b on the adjusting cylinder 202a is also two. The two grooves 201a-1 are symmetrically arranged, and the two sliders 202b are also symmetrically arranged.

[0057] Furthermore, the fume hood 203 includes a hood body 203a fixed to the bottom end of the adjusting cylinder 202a, and a partition 203b fixed to the inside of the hood body 203a. During operation, the adjusting cylinder 202a and the pipe 101 are connected. When the air pressure inside the pipe 101 decreases, the fumes enter the inside of the pipe 101 through the hood body 203a and the adjusting cylinder 202a and are eventually discharged. In non-operating state, the adjusting cylinder 202a and the pipe 101 are disconnected to prevent outside air from reaching the room through the pipe 101 and the fume hood 203, thus reducing the indoor temperature.

[0058] Operation process: When it is necessary to remove the fumes, push the fume hood 203 upward. The fume hood 203 drives the adjusting cylinder 202a to move upward. During the upward movement of the adjusting cylinder 202a, the slider 202b moves upward along the vertical groove 201a-1a until the slider 202b reaches the top of the vertical groove 201a-1a. Then rotate the fume hood 203 towards the horizontal groove 201a-1b. The slider 202b enters the inner side of the horizontal groove 201a-1b until the slider 202b reaches the end of the horizontal groove 201a-1b away from the vertical groove 201a-1a. The corresponding grooves 202a-1 and through grooves 201a-2 coincide, and the adjusting cylinder 202a and the pipe fitting 101 are adjusted to be in a connected state. When the air pressure inside the pipe fitting 101 decreases, the fumes enter the inner side of the pipe fitting 101 through the hood 203a and the adjusting cylinder 202a and are finally discharged.

[0059] When not in operation, the fume hood 203 is rotated in the direction of the vertical groove 201a-1a, causing the slider 202b to move in the direction of the vertical groove 201a-1a until the slider 202b passes through the horizontal groove 201a-1b and reaches the vertical groove 201a-1a. Under the action of gravity, the fume hood 203 and the adjusting cylinder 202a move downward, corresponding to the misalignment of groove 202a-1 and through groove 201a-2. The adjusting cylinder 202a and the pipe 101 are adjusted to the disconnected state, preventing outside air from entering the room through the pipe 101 and the fume hood 203 and lowering the indoor temperature.

[0060] Example 2

[0061] Reference Figure 2 This embodiment differs from the first embodiment in that the mounting part 201 further includes a pusher 201c, which includes a column 201c-1 disposed inside the groove 201a-1; a first spring 201c-2 sleeved on the outside of the column 201c-1; and a slider 202b having a sleeve hole, through which the slider 202b slides and is sleeved on the outside of the column 201c-1, and the groove 201a-1 is an inverted L-shape.

[0062] Specifically, the diameter of the hole on the sleeve block is matched with the outer diameter of the column 201c-1. When the smoke hood 203 is pushed upward, the elastic force of the first spring 201c-2 can help the operator push the slider 202b upward, so that the adjusting cylinder 202a and the smoke hood 203 are subjected to an upward thrust, making it easier for the operator to push the smoke hood 203 and the adjusting cylinder 202a upward.

[0063] Furthermore, the column 201c-1 is fixed to the inner side of the vertical groove 201a-1a. The top of the column 201c-1 and the bottom of the horizontal groove 201a-1b are on the same horizontal plane. When the sleeve block contacts the top of the vertical groove 201a-1a, the slider 202b can separate from the outer side of the column 201c-1. At this time, the adjusting cylinder 202a and the smoke hood 203 can be rotated to avoid the column 201c-1 limiting sleeve, which would cause the adjusting cylinder 202a and the smoke hood 203 to be unable to move.

[0064] The rest of the structure is the same as in Example 1.

[0065] Operation process: When the smoke hood 203 is pushed upward, the elastic force of the first spring 201c-2 can help the operator push the slider 202b upward, so that the adjusting cylinder 202a and the smoke hood 203 are subjected to an upward thrust, making it easier for the operator to push the smoke hood 203 and the adjusting cylinder 202a upward.

[0066] Example 3

[0067] Reference Figure 2 This embodiment differs from the previous embodiments in that the heat preservation and smoke exhaust device further includes an isolation component 300, which includes a transmission part 301 disposed on the pipe fitting 101; a linkage part 302 disposed between the transmission part 301 and the connecting part 202; and a heat insulation plate 303 rotatably disposed on the inner side of the pipe fitting 101. When the connecting part 202 rotates, it can drive the heat insulation plate 303 to rotate through the linkage part 302 and the transmission part 301, so that the heat insulation plate 303 can prevent cold outdoor air from entering the inner side of the pipe fitting 101.

[0068] Specifically, the linkage 302 includes a rotatable linkage column 302a mounted on the pipe fitting 101, and a snap-fit ​​member 302b disposed between the linkage column 302a and the adjusting cylinder 202a. When the adjusting cylinder 202a moves upward along the vertical groove 201a-1a, the snap-fit ​​member 302b connects the adjusting cylinder 202a and the linkage column 302a. When the adjusting cylinder 202a rotates along the horizontal groove 201a-1b, the snap-fit ​​member 302b drives the linkage column 302a to rotate synchronously, thereby driving the insulation plate 303 to rotate through the transmission part 301.

[0069] Furthermore, the transmission unit 301 includes a main sprocket 301a located outside the linkage column 302a, and a chain belt 301b connected to the main sprocket 301a. The heat insulation plate 303 includes a follower column 303a, a partition plate 303b, and a secondary sprocket 303c. The follower column 303a is rotatably located inside the pipe fitting 101, with one end extending to the outside of the pipe fitting 101. The partition plate 303b is fixed to the upper part of the follower column 303a. The secondary sprocket 303c is located outside the follower column 303a. The main sprocket 301a is connected to the secondary sprocket 303c via the chain belt 301b. When the adjusting cylinder 202a moves along the horizontal groove 201a-1b away from the vertical groove 201a-1a, the locking member... 302b drives the linkage column 302a to rotate forward, and the linkage column 302a drives the follower column 303a to rotate forward through the sprocket, which in turn causes the partition plate 303b to rotate forward, making the partition plate 303b parallel to the side wall of the pipe fitting 101, allowing the pipe fitting 101 to communicate with the outdoor air. When the adjusting cylinder 202a moves along the horizontal groove 201a-1b toward the direction close to the vertical groove 201a-1a, the snap-fit ​​part 302b drives the linkage column 302a to rotate in reverse, which in turn causes the partition plate 303b to rotate in reverse, making the partition plate 303b parallel to the side wall of the pipe fitting 101, thereby isolating the external environment from the inner space of the pipe fitting 101, preventing cold air from entering the inner side of the pipe fitting 101, and thus preventing the absorption of indoor heat by lowering the temperature of the pipe fitting 101.

[0070] The arc angle of the horizontal groove 201a-1b is 90 degrees, meaning that the slider 202b can rotate 90 degrees along the horizontal groove 201a-1b. When the slider 202b is located inside the vertical groove 201a-1a, the partition 303b is perpendicular to the side wall of the pipe fitting 101, which can prevent external air from entering the inside of the pipe fitting 101. When the slider 202b is located at the end of the horizontal groove 201a-1b away from the vertical groove 201a-1a, the partition 303b is parallel to the side wall of the pipe fitting 101, and the air and fumes inside the pipe fitting 101 can be discharged to the outside.

[0071] Furthermore, the locking component 302b includes a movable column 302b-1, a protruding structure 302b-2, a second spring 302b-3, and a locking block 302b-4. The movable column 302b-1 is slidably mounted on the adjusting cylinder 202a. The protruding structure 302b-2 is fixed to the end of the movable column 302b-1, and its top end has a locking groove 302b-2a. The second spring 302b-3 is sleeved on the outside of the movable column 302b-1, and it is located between the protruding structure 302b-2 and the adjusting cylinder 202a. The locking block 302b-4 is fixed to the end of the linkage column 302a, and the locking block 302b-4 corresponds to the locking groove 302b-2a. The adjusting cylinder 202a moves upward along the vertical groove 201a-1a, thereby driving the protruding structure 302b-2 upward. The slider 202b moves until it reaches the top of the vertical groove 201a-1a. At this time, the locking block 302b-4 is located inside the groove 302b-2a, so that when the adjusting cylinder 202a rotates, it can drive the movable column 302b-1, the protruding structure 302b-2 and the locking block 302b-4 to rotate synchronously, and then drive the linkage column 302a to rotate. In this embodiment, there are multiple smoking components 200, and the number of linkage parts 302 and the number of main sprockets 301a in the transmission part 301 are equal to the number of smoking components 200. The adjusting cylinders 202a in the multiple smoking components 200 drive the multiple main sprockets 301a to rotate through the multiple linkage parts 302. The multiple main sprockets 301a are all connected through the same chain belt 301b and the secondary sprocket 303c.

[0072] A top hole is provided on the upper surface of the adjusting cylinder 202a, and an anti-rotation groove is provided on the side wall of the top hole. An anti-rotation protrusion is provided on the outer side wall of the movable column 302b-1. When the movable column 302b-1 is sleeved on the inner side of the top hole, the anti-rotation protrusion is engaged with the inner side of the anti-rotation groove to prevent the movable column 302b-1 from rotating inside the top hole.

[0073] The rest of the structure is the same as in Example 2.

[0074] Operation process: When all the adjusting cylinders 202a and pipes 101 in the smoke extraction assembly 200 are in the disconnected state, one of the smoke extraction assemblies 200 (hereinafter referred to as the first smoke extraction assembly 200) needs to be used. The adjusting cylinder 202a can be pushed upward, and the adjusting cylinder 202a moves upward along the vertical groove 201a-1a, thereby driving the protruding structure 302b-2 to move upward until the slider 202b reaches the top of the vertical groove 201a-1a. At this time, the locking block 302b-4 is located inside the locking groove 302b-2a. Then, the adjusting cylinder 202a is rotated in the direction away from the vertical groove 201a-1a along the horizontal groove 201a-1b. At this time, the locking part 302b drives the linkage column 302a to rotate forward. The linkage column 302a drives the follower column 303a to rotate forward through the sprocket, thereby causing the partition plate 303b to rotate forward, so that the partition plate 303b is parallel to the side wall of the pipe fitting 101, and the pipe fitting 101 can be connected to the outdoor air.

[0075] When another smoking assembly 200 (hereinafter referred to as the second smoking assembly 200) is needed, the adjusting cylinder 202a in the second smoking assembly 200 is pushed upward. The adjusting cylinder 202a causes the protruding structure 302b-2 to move upward. Because the first smoking assembly 200 has already caused all the linkage columns 302a and the locking blocks 302b-4 to rotate 90 degrees when it rotates, the protruding structure 302b-2 on the adjusting cylinder 202a of the second smoking assembly 200 cannot... By engaging the slot 302b-2a and the corresponding block 302b-4, during the upward movement, the block 302b-4 will squeeze the protruding structure 302b-2, which will push the movable column 302b-1 downward. At the same time, the protruding structure 302b-2 will press the second spring 302b-3, so that the adjusting cylinder 202a in the second smoking assembly 200 can continue to move upward until the slider 202b drives the top of the vertical groove 201a-1a.

[0076] When in the disconnected state, in addition to the disconnection of the corresponding slots 202a-1 and through slots 201a-2, the heat in the room will not be lost through the inner space of the pipe fitting 101. Furthermore, the partition 303b further prevents cold air from reaching the inner side of the pipe fitting 101, thus preventing the overall temperature of the pipe fitting 101 from decreasing and absorbing the heat in the room.

[0077] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0078] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0079] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A heat-insulating and smoke-exhausting device, characterized in that: include, The exhaust pipe assembly (100) includes a pipe fitting (101) and an exhaust fan (102) disposed inside the pipe fitting (101); and, The smoking assembly (200) includes a mounting portion (201) disposed on the pipe (101), a connecting member (202) connected to the mounting portion (201), and a smoking hood (203) connected to the connecting member (202). The mounting part (201) includes a recessed part (201a), which is a tubular structure with a groove (201a-1) on its inner side and a through groove (201a-2) on the recessed part (201a). The connecting member (202) includes an adjusting cylinder (202a) and a slider (202b); The adjusting cylinder (202a) is slidably disposed on the inner side of the concave part (201a), and a corresponding groove (202a-1) is provided on it. The slider (202b) is fixed to the outside of the adjusting cylinder (202a); The slider (202b) is slidably engaged with the inner side of the groove (201a-1), and the adjusting cylinder (202a) is slidably connected to the inner side of the concave part (201a) through the slider (202b); It also includes an isolation component (300), which includes, A transmission part (301) is provided on the tube (101); The linkage part (302) is disposed between the transmission part (301) and the connecting member (202); A heat insulation plate (303) is rotatably disposed on the inner side of the pipe fitting (101); When the connecting member (202) rotates, it can drive the heat insulation plate (303) to rotate through the linkage part (302) and the transmission part (301); The linkage part (302) includes a rotatable linkage column (302a) disposed on the pipe fitting (101) and a snap-fit ​​member (302b) disposed between the linkage column (302a) and the adjusting cylinder (202a). The transmission unit (301) includes a main sprocket (301a) located outside the linkage column (302a) and a chain belt (301b) connected to the main sprocket (301a). The heat insulation plate (303) includes a follower column (303a), a partition plate (303b), and a secondary sprocket (303c). The follower column (303a) is rotatably disposed inside the pipe fitting (101), with one end extending to the outside of the pipe fitting (101). The partition (303b) is fixed to the follower column (303a); The secondary sprocket (303c) is located on the outside of the follower column (303a); The main sprocket (301a) is connected to the secondary sprocket (303c) via a chain belt (301b).

2. The heat preservation and smoke exhaust device as described in claim 1, characterized in that: The mounting part (201) further includes a booster (201c), which includes, A column (201c-1) is provided on the inner side of the groove (201a-1); The first spring (201c-2) is sleeved on the outside of the column (201c-1); The slider (202b) has a sleeve hole, and the slider (202b) slides and is sleeved on the outside of the column (201c-1) through the sleeve hole. The groove (201a-1) is an inverted L-shape.

3. The heat preservation and smoke exhaust device as described in claim 2, characterized in that: The smoking hood (203) includes a hood body (203a) fixed to the bottom end of the adjusting cylinder (202a) and a partition (203b) fixed to the inside of the hood body (203a).

4. The heat preservation and smoke exhaust device as described in claim 3, characterized in that: The snap-fit ​​component (302b) includes a movable post (302b-1), a protruding structure (302b-2), a second spring (302b-3), and a snap-fit ​​block (302b-4); The movable column (302b-1) is slidably mounted on the adjusting cylinder (202a); The protruding structure (302b-2) is fixed to the end of the movable column (302b-1), and a slot (302b-2a) is provided at its top. The second spring (302b-3) is sleeved on the outside of the movable column (302b-1), and it is located between the protruding structure (302b-2) and the adjusting cylinder (202a); The locking block (302b-4) is fixed to the end of the linkage column (302a), and the locking block (302b-4) corresponds to the position of the locking slot (302b-2a).

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