Folding mechanism applied to a decorative cylinder of a smoke pipe of a range hood

Abstract

The application discloses a folding mechanism applied to a decorative cylinder of a smoke exhaust ventilator smoke pipe, which comprises a liftable front wall plate assembly, liftable corner connecting plate assemblies capable of moving leftward and rightward are arranged on the two sides of the liftable front wall plate assembly, liftable side wall plate assemblies capable of moving forward and backward are arranged on the outer sides of the liftable corner connecting plate assemblies, height maintaining structures maintaining the same height are arranged between the liftable front wall plate assembly, the liftable corner connecting plate assemblies and the liftable side wall plate assemblies, the front wall plate and the side wall plate of the decorative cylinder can be adjusted in the length-width-height proportional mode, and the adjustment is more convenient; the length-width-height of the decorative cylinder can be folded, the occupied volume of the decorative cylinder is minimized, and transportation is facilitated; the length-width-height proportional adjustment can shield smoke exhaust pipes of different sizes and adapt to different installation environments, and the application range and adaptability are improved; the length-width-height is synchronously adjusted through mechanical structures, the adjustment is more convenient, and the adjustment efficiency is faster.

Description

Technical Field

[0001] This invention relates to a decorative tube structure used in range hoods, and particularly to a folding mechanism used in the decorative tube of a range hood exhaust pipe. Background Technology

[0002] Decorative tubes in range hoods are typically installed above the hood to conceal the exhaust pipe, serving both aesthetic and protective purposes. Due to variations in installation location, exhaust pipe size, and distance from the ceiling, different decorative tubes are required. Larger decorative tubes require more space during transport, hindering efficiency. Furthermore, inaccurate cabinet space allowances can prevent perfectly adjustable tubes from being installed flawlessly. The inability to proportionally adjust the length, width, and height of the decorative tube makes it difficult to adapt quickly to different installation environments. To address these issues, a decorative tube structure capable of proportionally adjusting length, width, and height is needed to meet diverse installation requirements and allow for quick folding and transport.

[0003] Therefore, the existing decorative cylinder structure in range hoods needs further improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a folding mechanism for decorative tubes of range hoods, which can freely adjust the proportional dimensions of the length, width and height of the decorative tube, making it convenient to install decorative tubes of different sizes in different positions. At the same time, the decorative tube can also be folded and reduced proportionally in length, width and height, which is convenient for saving space and transportation.

[0005] To achieve the above objectives, the present invention adopts the following solution: A folding mechanism for a decorative tube in a range hood includes a liftable front wall panel assembly. Each side of the liftable front wall panel assembly has a liftable corner connecting plate assembly that can move left and right. A liftable side wall panel assembly that can move forward and backward is located outside the liftable corner connecting plate assembly. A height-maintaining structure is provided between the liftable front wall panel assembly, the liftable corner connecting plate assembly, and the liftable side wall panel assembly to maintain the same height. The liftable front wall panel assembly has a synchronous opening and closing control structure for controlling the symmetrical left and right movement of the two liftable corner connecting plate assemblies. A rearward linkage mechanism is provided between the two liftable side wall panel assemblies and the synchronous opening and closing control structure to control the two liftable corner connecting plate assemblies to move backward proportionally when they expand. A lifting connection structure is provided between the rearward linkage mechanism and the liftable corner connecting plate assembly to achieve proportional lifting as they expand.

[0006] Furthermore, the liftable front wall panel assembly includes a front wall fixing plate, a front wall lifting guide groove is provided at the upper end of the front wall fixing plate, a front wall lifting plate is movably disposed in the front wall lifting guide groove, and a plurality of mounting seats are provided on the front wall fixing plate.

[0007] Furthermore, the liftable corner connecting plate assembly includes a corner connecting plate, the upper end of which is provided with a corner lifting guide groove, a corner lifting plate is movably disposed within the corner lifting guide groove, and a transverse guide structure is provided between the corner connecting plate and the front wall fixing plate.

[0008] Furthermore, the transverse guide structure includes a transverse guide groove disposed on the rear wall of the front wall fixing plate, and a transverse guide block is disposed on the front wall of the corner connecting plate, the transverse guide block being movably disposed within the transverse guide groove.

[0009] Furthermore, the liftable sidewall panel assembly includes a movable sidewall panel, a sidewall lifting guide groove is provided on the movable sidewall panel, a sidewall lifting plate is movably disposed on the sidewall lifting guide groove, and a longitudinal guide structure is provided between the movable sidewall panel and the corner connecting plate.

[0010] Furthermore, the longitudinal guide structure includes a longitudinal guide block disposed on the side wall of the corner connecting plate, and the side wall of the movable side wall is provided with a longitudinal guide groove, and each longitudinal guide block is respectively movably disposed in the longitudinal guide groove.

[0011] Furthermore, the height-maintaining structure includes height-maintaining sliders respectively disposed on the front wall and side walls of the corner lifting plate. The rear wall of the front lifting plate is provided with a height-maintaining horizontal groove, and the inner side wall of the side lifting plate is provided with a height-maintaining vertical groove. Each height-maintaining slider is movably disposed in the height-maintaining horizontal groove and the height-maintaining vertical groove respectively and can slide relative to each other.

[0012] Furthermore, the synchronous opening and closing control structure includes a vertical guide groove disposed on the front wall fixed plate, a vertical adjustment block movably disposed in the vertical guide groove, a vertical screw seat disposed in the vertical guide groove, a vertical adjustment screw rotatably disposed on the vertical screw seat, an adjustment screw hole disposed on the vertical adjustment block, the adjustment screw hole being sleeved on the vertical adjustment screw and threadedly connected to the vertical adjustment screw, a first hinge seat disposed on the inner side of the corner connecting plate, a second hinge seat disposed on each side of the vertical adjustment block, and a synchronous connecting rod hinged between the first hinge seat and the second hinge seat.

[0013] Furthermore, the rearward linkage mechanism includes a vertical corner guide groove disposed at the corner of the corner connecting plate. A right-angle slider is movably disposed vertically within the vertical corner guide groove. A horizontal extension rod is disposed laterally on the right-angle slider. A horizontal straight slot is disposed on the horizontal extension rod. A lifting shaft is disposed in the middle of the synchronous connecting rod. The lifting shaft moves through the horizontal straight slot. A third hinge seat is disposed on the side wall of the right-angle slider. A fourth hinge seat is disposed on the side wall of the side wall movable plate. A push connecting rod is disposed between the third hinge seat and the fourth hinge seat.

[0014] Furthermore, the lifting connection structure is a connecting rod, which is fixedly disposed between the corner lifting plate and the lateral extension rod.

[0015] In summary, the advantages of this invention over the prior art are: This invention addresses the shortcomings of existing decorative tube structures in range hoods. Through its structural design, this invention offers the following advantages: 1. It allows for proportional adjustment of the length, width, and height of the front and side panels of the decorative tube, making adjustment more convenient; 2. It enables the decorative tube to be folded in length, width, and height, minimizing its volume and facilitating transportation; 3. Proportional adjustment of length, width, and height can conceal exhaust pipes of different sizes and adapt to different installation environments, improving its applicability and adaptability; 4. The length, width, and height are adjusted synchronously through a mechanical structure, making adjustment more convenient. The interconnected mechanisms result in faster adjustment efficiency, a rational structural design, and strong stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the folded state of the present invention; Figure 2 This is a schematic diagram of the unfolded state of the present invention; Figure 3 This is one of the installation diagrams of the present invention; Figure 4 This is the second installation diagram of the present invention; Figure 5 This is a rear view of the present invention; Figure 6 for Figure 5 Sectional view along line AA; Figure 7 for Figure 5 Sectional view along line BB; Figure 8 for Figure 5 Sectional view along line CC; Figure 9 This is one of the perspective views of the present invention; Figure 10 This is a second perspective view of the present invention; Figure 11 This is one of the exploded views of the present invention; Figure 12 This is the second exploded view of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-12 This invention provides a folding mechanism for a decorative tube of a range hood exhaust pipe, comprising a liftable front wall panel assembly 1, with liftable corner connecting plate assemblies 2 movable left and right on both sides of the liftable front wall panel assembly 1, and liftable side wall panel assemblies 3 movable forward and backward on the outer side of the liftable corner connecting plate assemblies 2. A height-maintaining structure 4 is provided between the liftable front wall panel assembly 1, the liftable corner connecting plate assemblies 2, and the liftable side wall panel assemblies 3 to maintain the same height. A synchronous opening and closing control structure 5 is provided on the liftable front wall panel assembly 1 to control the symmetrical left and right movement of the two liftable corner connecting plate assemblies 2. A rearward linkage mechanism 6 is provided between the two liftable side wall panel assemblies 3 and the synchronous opening and closing control structure 5 to control the two liftable corner connecting plate assemblies 3 to move backward proportionally when they expand. A lifting connection structure 7 is provided between the rearward linkage mechanism 6 and the liftable corner connecting plate assemblies 2 to lift proportionally when they expand. The height dimensions of the liftable front wall panel assembly 1, the liftable corner connecting plate assembly 2, and the liftable side wall panel assembly 3 can be freely adjusted; The decorative cylinder is composed of a liftable front wall panel assembly 1, a liftable corner connecting plate assembly 2, and a liftable side wall panel assembly 3. The length, width, and height of the decorative cylinder can be adjusted by the liftable front wall panel assembly 1, the liftable corner connecting plate assembly 2, and the liftable side wall panel assembly 3. During adjustment, the synchronous opening and closing control structure 5 is driven. The synchronous opening and closing control structure 5 can control the left and right width of the liftable front wall panel assembly 1, and adjust the left and right width positions of the liftable corner connecting plate assembly 2 and the liftable side wall panel assembly 3 on both sides. During the adjustment of the left and right widths, the rearward linkage mechanism 6 is driven, which in turn drives the front and rear widths of the liftable side wall panel assemblies 3 on both sides to adjust the size proportionally. During the adjustment process of the rearward linkage mechanism 6, the lifting connection structure 7 also works accordingly. The lifting connection structure 7 controls the height adjustment of the liftable front wall panel assembly 1. When the height of the liftable front wall panel assembly 1 is adjusted, the height holding structure 4 is driven to keep the liftable corner connecting plate assembly 2 and the liftable side wall panel assembly 3 at the same height for adjustment.

[0019] The liftable front wall panel assembly 1 of the present invention includes a front wall fixing plate 101, a front wall lifting guide groove 102 is provided at the upper end of the front wall fixing plate 101, a front wall lifting plate 103 is movably disposed in the front wall lifting guide groove 102, and a plurality of mounting seats 104 are provided on the front wall fixing plate 101.

[0020] The liftable corner connecting plate assembly 2 of the present invention includes a corner connecting plate 201, a corner lifting guide groove 202 is provided at the upper end of the corner connecting plate 201, a corner lifting plate 203 is movably disposed in the corner lifting guide groove 202, and a transverse guide structure 204 is provided between the corner connecting plate 201 and the front wall fixing plate 101.

[0021] The transverse guide structure 204 of the present invention includes a transverse guide groove 2041 disposed on the rear wall of the front wall fixing plate 101, and a transverse guide block 2042 disposed on the front wall of the corner connecting plate 201, the transverse guide block 2042 being movably disposed within the transverse guide groove 2041.

[0022] The liftable side wall panel assembly 3 of the present invention includes a side wall movable plate 301, a side wall lifting guide groove 302 is provided on the side wall movable plate 301, a side wall lifting plate 303 is movably provided on the side wall lifting guide groove 302, and a longitudinal guide structure 304 is provided between the side wall movable plate 301 and the corner connecting plate 201.

[0023] The longitudinal guide structure 304 of the present invention includes a longitudinal guide block 3041 disposed on the side wall of the corner connecting plate 201. The side wall of the movable plate 301 is provided with a longitudinal guide groove 3042, and each longitudinal guide block 3041 is respectively movably disposed in the longitudinal guide groove 3042.

[0024] The height-maintaining structure 4 of the present invention includes height-maintaining sliders 401 respectively disposed on the front wall and the side walls of the corner lifting plate 203. The rear wall of the front lifting plate 103 is provided with a height-maintaining horizontal groove 402, and the inner side wall of the side lifting plate 303 is provided with a height-maintaining vertical groove 403. Each height-maintaining slider is movably disposed in the height-maintaining horizontal groove (402) and the height-maintaining vertical groove respectively and can slide relative to each other.

[0025] The synchronous opening and closing control structure 5 of the present invention includes a vertical guide groove 501 disposed on the front wall fixing plate 101, a vertical adjustment block 502 movably disposed in the vertical guide groove 501, a vertical screw seat 503 disposed in the vertical guide groove 501, a vertical adjustment screw 504 rotatably disposed on the vertical screw seat 503, an adjustment screw hole 505 disposed on the vertical adjustment block 502, the adjustment screw hole 505 being sleeved on the vertical adjustment screw 504 and threadedly connected to the vertical adjustment screw 504, a first hinge seat 506 disposed on the inner side of the corner connecting plate 201, a second hinge seat 507 disposed on each side of the vertical adjustment block 502, and a synchronous connecting rod 508 hinged between the first hinge seat 506 and the second hinge seat 507; The rearward linkage mechanism 6 of the present invention includes a vertical corner guide groove 601 disposed at the corner of the corner connecting plate 201. A right-angle slider 602 is movably disposed vertically in the vertical corner guide groove 601. A horizontal extension rod 603 is disposed horizontally on the right-angle slider 602. A horizontal straight groove 604 is disposed on the horizontal extension rod 603. A lifting shaft 605 is disposed in the middle of the synchronous connecting rod 508. The lifting shaft 605 moves through the horizontal straight groove 604. A third hinge seat 606 is disposed on the side wall of the right-angle slider 602. A fourth hinge seat 607 is disposed on the side wall of the side wall movable plate 301. A push connecting rod 608 is disposed between the third hinge seat 606 and the fourth hinge seat 607. When the vertical adjustment block 502 moves upward, it opens the synchronous connecting rods 508 on both sides, causing the liftable side wall panel assemblies 3 on both sides to open. During the opening process of the synchronous connecting rods 508, they move upward. At this time, the lifting shaft 605 in the synchronous connecting rods 508 drives the horizontal straight slot 604 to move upward. At this time, the horizontal straight slot 604 drives the horizontal extension rod 603 to move upward, and controls the height dimension of the liftable front wall panel assembly 1 to be adjusted.

[0026] The lifting connection structure 7 of the present invention is a connecting rod, which is fixedly disposed between the corner lifting plate 203 and the transverse extension rod 603.

[0027] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A folding mechanism applied to the decorative tube of a range hood exhaust pipe, characterized in that: The system includes a liftable front wall panel assembly (1), on each side of the liftable front wall panel assembly (1) being a liftable corner connecting plate assembly (2) capable of moving left and right. A liftable side wall panel assembly (3) capable of moving forward and backward is provided on the outer side of the liftable corner connecting plate assembly (2). A height-maintaining structure (4) is provided between the liftable front wall panel assembly (1), the liftable corner connecting plate assembly (2), and the liftable side wall panel assembly (3) to maintain the same height. The liftable front wall panel assembly (1) is equipped with a device for controlling the liftable corner connecting plate assemblies (2) on both sides. A symmetrically movable synchronous opening and closing control structure (5) is provided between the two sides of the liftable side wall panel assembly (3) and the synchronous opening and closing control structure (5), which controls the two liftable corner connecting plate assemblies (3) to move backward proportionally when they expand. A lifting connection structure (7) is provided between the rearward linkage mechanism (6) and the liftable corner connecting plate assembly (2) to lift proportionally when they follow the two liftable corner connecting plate assemblies (2) in their expansion movement.

2. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 1, characterized in that: The liftable front wall panel assembly (1) includes a front wall fixing plate (101), a front wall lifting guide groove (102) is provided at the upper end of the front wall fixing plate (101), a front wall lifting plate (103) is movably arranged in the front wall lifting guide groove (102), and a plurality of mounting seats (104) are provided on the front wall fixing plate (101).

3. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 2, characterized in that: The liftable corner connecting plate assembly (2) includes a corner connecting plate (201), a corner lifting guide groove (202) is provided at the upper end of the corner connecting plate (201), a corner lifting plate (203) is movably arranged in the corner lifting guide groove (202), and a transverse guide structure (204) is provided between the corner connecting plate (201) and the front wall fixing plate (101).

4. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 3, characterized in that: The transverse guide structure (204) includes a transverse guide groove (2041) disposed on the rear wall of the front wall fixing plate (101), and a transverse guide block (2042) is disposed on the front wall of the corner connecting plate (201), and the transverse guide block (2042) is movably disposed in the transverse guide groove (2041).

5. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 4, characterized in that: The liftable side wall panel assembly (3) includes a side wall movable plate (301), a side wall lifting guide groove (302) is provided on the side wall movable plate (301), a side wall lifting plate (303) is movably provided on the side wall lifting guide groove (302), and a longitudinal guide structure (304) is provided between the side wall movable plate (301) and the corner connecting plate (201).

6. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 5, characterized in that: The longitudinal guide structure (304) includes a longitudinal guide block (3041) disposed on the side wall of the corner connecting plate (201), and the side wall of the movable plate (301) is provided with a longitudinal guide groove (3042), and each longitudinal guide block (3041) is respectively movably disposed in the longitudinal guide groove (3042).

7. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 6, characterized in that: The height holding structure (4) includes height holding sliders (401) respectively disposed on the front wall and the side walls of the corner lifting plate (203). The rear wall of the front wall lifting plate (103) is provided with a height holding horizontal groove (402), and the inner side wall of the side wall lifting plate (303) is provided with a height holding vertical groove (403). Each height holding slider (401) is respectively movably disposed in the height holding horizontal groove (402) and the height holding vertical groove (403) and can slide relative to each other.

8. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 5, characterized in that: The synchronous opening and closing control structure (5) includes a vertical guide groove (501) disposed on the front wall fixing plate (101), a vertical adjustment block (502) is movably disposed in the vertical guide groove (501), a vertical screw seat (503) is disposed in the vertical guide groove (501), a vertical adjustment screw (504) is rotatably disposed on the vertical screw seat (503), an adjustment screw hole (505) is disposed on the vertical adjustment block (502), the adjustment screw hole (505) is sleeved on the vertical adjustment screw (504) and threadedly connected to the vertical adjustment screw (504), a first hinge seat (506) is disposed on the inner side of the corner connecting plate (201), a second hinge seat (507) is disposed on each side of the vertical adjustment block (502), and a synchronous connecting rod (508) is hinged between the first hinge seat (506) and the second hinge seat (507).

9. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 8, characterized in that: The rearward linkage mechanism (6) includes a vertical corner guide groove (601) set at the corner of the corner connecting plate (201). A right-angle slider (602) is movably arranged vertically in the vertical corner guide groove (601). A horizontal extension rod (603) is arranged horizontally on the right-angle slider (602). A horizontal straight groove (604) is arranged on the horizontal extension rod (603). A lifting shaft (605) is arranged in the middle of the synchronous connecting rod (508). The lifting shaft (605) moves through the horizontal straight groove (604). A third hinge seat (606) is arranged on the side wall of the right-angle slider (602). A fourth hinge seat (607) is arranged on the side wall of the side wall movable plate (301). A push connecting rod (608) is arranged between the third hinge seat (606) and the fourth hinge seat (607).

10. The folding mechanism for the decorative tube of a range hood exhaust pipe according to claim 9, characterized in that: The lifting connection structure (7) is a connecting rod, which is fixedly installed between the corner lifting plate (203) and the transverse extension rod (603).

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