Combined assembly type smoke exhaust air pipe

Abstract

The utility model relates to a smoke exhaust air pipe, and discloses a combined assembly type smoke exhaust air pipe which comprises a plurality of groups of air pipe sections which are detachably and fixedly connected, each group of air pipe sections comprises four edge mounting strips, two first plates, two second plates and two rectangular frames. And the two first plates, the two second plates and the four edge mounting strips form a rectangular frame-shaped pipe body. The two rectangular frames are detachably and fixedly connected to the two sides of the pipe body respectively to form an air pipe section. Compared with the prior art, the portable folding chair has the advantages of being simpler in structure, more convenient to assemble and more convenient to carry after all the components are disassembled.

Description

Technical Field

[0001] The utility model relates to a smoke exhaust air duct, in particular to a combined assembled smoke exhaust air duct. Background Art

[0002] The smoke exhaust duct is generally composed of multiple groups of duct sections connected together. In this way, compared with the length of the entire smoke exhaust duct, the length of a single group of duct sections is much smaller, which is convenient for entering the installation site. However, the weight of a single group of duct sections is still relatively large, and it is still relatively inconvenient to enter the elevator. Therefore, a single group of duct sections is also available in a modular type. Such a single group of duct sections generally includes two rectangular frames with rectangular flanges, a plurality of connecting strips arranged between the two rectangular frames, two first plates and two second plates fixedly connected to the connecting strips and used for heat insulation, and iron sheets covering the first and second plates. This type of single group of duct sections also has the following problems: the structure is relatively complex, the assembly is inconvenient, and the various components are inconvenient to carry after disassembly. Utility Model Content

[0003] The present application provides a combined assembled smoke exhaust duct, which can solve the problems raised in the background technology.

[0004] In the present application, a combined assembled smoke exhaust duct is provided, comprising a plurality of groups of duct sections which are detachably fixedly connected, each group of duct sections comprising

[0005] The cross section of the four edge mounting strips lacks two of the seven connecting lines compared to the Japanese-shaped type; one connecting line is horizontal, so that a first slot is formed on one port; the other connecting line is vertical, so that a second slot is formed on the other port with the plug perpendicular to the first slot;

[0006] Two first plates and two second plates, the four edge mounting strips form a rectangular frame-shaped tube body; for any one of the first plates or the second plates, a first edge portion enters the first slot, and the other first edge portion opposite to the first plate enters the second slot;

[0007] Two rectangular frames with rectangular flanges are detachably fixedly connected to two sides of the pipe body.

[0008] Furthermore, each group of duct segments has at least one of the following settings:

[0009] Setting one, each group of duct sections also includes

[0010] Two first connecting strips, with an H-shaped cross section, that is, with two third slots opposite to each other; one third slot is for a second edge portion of the first plate to enter, and the other third slot is for a second edge portion of the first plate in another group of air duct sections to enter;

[0011] Two second connecting strips, with an H-shaped cross section, that is, with two fourth slots opposite to each other; one fourth slot is for a second edge portion of the second plate to enter, and the other fourth slot is for a second edge portion of the second plate in another group of duct sections to enter;

[0012] Setting 2, each group of air duct sections also includes a support bar, the cross section of which is concave, and the two sides of the notch are partially bent inward to have support pieces; the support strip is arranged at the connection between two adjacent groups of air duct sections.

[0013] Furthermore, when each group of air duct sections has both the first setting and the second setting, the two first connecting strips and the two second connecting strips are matched in the recesses of the supporting strips.

[0014] Furthermore, for any two edge mounting strips, a portion corresponding to the first slot on one edge mounting strip can enter into the second slot on the other edge mounting strip.

[0015] Furthermore, the first plate and the second plate have the same size.

[0016] In summary, in the present application, a combined assembled smoke exhaust duct includes multiple groups of duct sections that are detachably fixedly connected; each group of duct sections includes four edge mounting strips, two first plates, two second plates, and two rectangular frames. The two first plates, two second plates, and four edge mounting strips form a rectangular frame-shaped tube body. The two rectangular frames are detachably fixedly connected to the two sides of the tube body to form a duct section. The beneficial effects are: the structure is simpler, the assembly is more convenient, and the various components are more convenient to carry after being disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0018] Figure 1 is a schematic diagram of a group of air duct segments;

[0019] Figure 2 An exploded view of a group of duct segments;

[0020] Figure 3 A schematic diagram of two edge mounting strips being plugged in and engaged;

[0021] Figure 4 A schematic diagram of the setting of the support bar;

[0022] Figure 5 A schematic diagram of the arrangement of the first connecting bar and the second connecting bar;

[0023] Figure 6 A cross-sectional view after a first connecting strip and a second connecting strip are arranged between two groups of air duct sections;

[0024] Figure 7 for Figure 6 A magnified schematic diagram of part A;

[0025] Figure 8 A schematic diagram of the cooperation between the support bar, the first connecting bar and the second connecting bar.

[0026] In the figure,

[0027] 1. Duct section;

[0028] 2. Edge mounting strip; 2a. First slot; 2b. Second slot;

[0029] 3. First board;

[0030] 4. Second board;

[0031] 5. Rectangular frame; 5a. Rectangular flange; 5b. Fastener;

[0032] 6. The first connecting strip;

[0033] 7. Second connecting strip;

[0034] 8. Support bar; 8a. Support sheet. DETAILED DESCRIPTION

[0035] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] See also Figure 1 and Figure 2 A combined assembled smoke exhaust duct comprises a plurality of duct sections 1 which are detachably fixedly connected. Each duct section 1 comprises four edge mounting strips 2, two first plates 3, two second plates 4 and two rectangular frames 5.

[0037] See also Figure 2 and Figure 3, the cross section of the edge mounting strip 2 lacks two of the seven connecting lines compared to the Japanese-shaped one. The missing connecting line (marked as the first connecting line) is horizontal, so that a first slot 2a is formed on one port. The other missing connecting line (marked as the second connecting line) is vertical, so that a second slot 2b is formed on the other port, the plug being perpendicular to the first slot 2a.

[0038] Two first plates 3 and two second plates 4 are formed into a rectangular frame-shaped tube body by four edge mounting strips 2. That is, one edge mounting strip 2 corresponds to the first plate 3 and the second plate 4, the first slot 2a is plugged into one of them, and the second slot 2b is plugged into the other. For any first plate 3 or second plate 4, one first edge portion enters the first slot 2a, and the other first edge portion opposite enters the second slot 2b.

[0039] The two rectangular frames 5 are both provided with a rectangular flange 5a, that is, the rectangular edge of one side of the rectangular frame 5 is bent outward to form a rectangular flange 5a, and the rectangular flange 5a is used to connect two adjacent sections of the air duct 1. The two rectangular frames 5 are respectively detachably fixedly connected to the two sides of the pipe body. Specifically, the first plate 3 and the second plate 4 are both provided with a first through hole at the two sides, and the rectangular frame 5 is correspondingly provided with a second through hole, and the rectangular frame 5 is fixedly connected to the pipe body by a fastener 5b composed of bolts and nuts.

[0040] See also Figure 4 and Figure 5 Optionally, each group of air duct segments 1 also has at least one of the following settings.

[0041] For setting one, see Figure 5 , Figure 6 and Figure 7 Each group of duct sections 1 further includes two first connecting strips 6 and two second connecting strips 7. The cross section of the first connecting strip 6 is H-shaped, i.e., it has two third slots with opposite sockets. One third slot is for a second edge portion of the first plate 3 to enter, and the other third slot is for a second edge portion of the first plate 3 in another group of duct sections 1 to enter. The cross section of the second connecting strip 7 is also H-shaped, i.e., it has two fourth slots with opposite sockets. One fourth slot is for a second edge portion of the second plate 4 to enter, and the other fourth slot is for a second edge portion of the second plate 4 in another group of duct sections 1 to enter.

[0042] That is, the length of the edge mounting strip 2 is shorter than the first edge of the first plate 3 / second plate 4. After the two first plates 3, the two second plates 4 and the four edge mounting strips 2 form a tube body, the two second edges of the first plates 3 and the two second edges of the second plates 4 both extend beyond the edge mounting strip 2 to be connected by the two first connecting strips 6 and the two second connecting strips 7.

[0043] In this way, by providing two first connecting strips 6 and two second connecting strips 7 between the two groups of air duct sections 1, the sealing performance and connection stability between the two groups of air duct sections 1 are improved.

[0044] For setting two, see Figure 4 Each group of air duct sections 1 further includes a support bar 8, the cross section of the support bar 8 is concave, and the two sides of the concave part are bent inward to form support pieces 8a. The support bar 8 is arranged at the connection of two adjacent groups of air duct sections 1. Specifically, the support piece 8a is suspended on the top by two threaded rods, and the rectangular frame 5 at the connection of the two groups of air duct sections 1 is located between the two support pieces 8a, and the two support pieces 8a respectively support the pipe bodies of the two groups of air duct sections 1.

[0045] That is, after the air duct sections 1 are combined into an air duct, the air duct is hoisted on the top. By additionally arranging the support strips 8, the connection between the two groups of air duct sections 1 is supported to improve the stability of the connection.

[0046] See also Figure 8 Further, when each set of duct sections 1 has both setting one and setting two, the two first connecting strips 6 and the two second connecting strips fit into the notches of the support strips 8. In this way, when the duct sections 1 are disassembled, the two first connecting strips 6, the two second connecting strips and the support strips 8 are combined, making it more convenient to carry.

[0047] Optional, see Figure 3 , any two edge mounting strips 2, the portion corresponding to the first slot 2a on one edge mounting strip 2 can enter the second slot 2b of the other edge mounting strip 2. That is, when the air duct section 1 is disassembled, any two edge mounting strips 2 can be plugged in and out, making it more convenient to carry.

[0048] Optionally, the first plate 3 and the second plate 4 have the same size. Correspondingly, the first connecting strip 6 and the second connecting strip 7 have the same length, and the rectangular frame 5 is a square.

Claims

1. A combined assembled smoke exhaust duct, comprising a plurality of duct sections (1) that are detachably fixedly connected, characterized in that: Each set of duct sections (1) includes The cross section of the four edge mounting strips (2) lacks two of the seven connecting lines compared to the Japanese-shaped strip; one connecting line is horizontal, so that a first slot (2a) is formed on one opening; the other connecting line is vertical, so that a second slot (2b) is formed on the other opening, the insertion opening of which is perpendicular to the first slot (2a); Two first plates (3) and two second plates (4) are provided with four edge mounting strips (2) to form a rectangular frame-shaped tube body; for any one of the first plates (3) or the second plates (4), a first edge portion enters a first slot (2a), and the other first edge portion opposite to the first edge portion enters a second slot (2b); Two rectangular frames (5) with rectangular flanges (5a) are respectively detachably fixedly connected to two sides of the pipe body.

2. The combined assembled smoke exhaust duct according to claim 1, characterized in that: Each group of air duct segments (1) also has at least one of the following settings: Setting one, each group of air duct sections (1) also includes Two first connecting strips (6) have an H-shaped cross section, i.e., two third slots with opposite sockets; one third slot is for a second edge portion of the first plate (3) to enter, and the other third slot is for a second edge portion of the first plate (3) in another group of air duct sections (1) to enter; Two second connecting strips (7) have an H-shaped cross section, i.e., two fourth slots with opposite sockets; one fourth slot is for a second edge portion of the second plate (4) to enter, and the other fourth slot is for a second edge portion of the second plate (4) in another group of duct sections (1) to enter; In a second arrangement, each group of air duct sections (1) further comprises a support strip (8) having a concave cross section and having support sheets (8a) bent inwardly on both sides of the notch; the support strips (8a) are arranged at the connection between two adjacent groups of air duct sections (1).

3. The combined assembled smoke exhaust duct according to claim 2, characterized in that: When each group of air duct sections (1) has both setting one and setting two, the two first connecting strips (6) and the two second connecting strips fit into the recesses of the supporting strips (8).

4. The combined assembled smoke exhaust duct according to claim 1, characterized in that: For any two edge mounting strips (2), a portion corresponding to the first slot (2a) on one edge mounting strip (2) can enter the second slot (2b) of the other edge mounting strip (2).

5. The combined assembled smoke exhaust duct according to claim 1, characterized in that: The first plate (3) and the second plate (4) have the same size.

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