Modularized prefabricated reducing combined air duct

Abstract

The utility model provides a modularization prefabricated variable diameter combined air duct, relates to variable diameter combined air duct technical field, including air duct main part, the surface of air duct main part is provided with dismountable cleaning subassembly, the dismountable cleaning subassembly includes frame, the inside of frame is provided with mounting groove, the both sides inner wall of mounting groove is provided with the card slot, the card slot is connected with the card slot. A mounting plate is arranged in the mounting groove, a two-way screw rod is inserted into the mounting plate, clamping blocks are connected to the surfaces of the two sides of the two-way screw rod, threaded holes are formed in the clamping blocks, and a first gear is connected to the center of the surface of the two-way screw rod. According to the air duct, when the interior of the air duct body needs to be cleaned, the rotating handle can be rotated to drive the clamping block to contract, then the mounting plate is pulled outwards, the interior of the air duct body can be cleaned by completing quick disassembly, and the problems that dust, impurities and the like accumulated on the inner wall of the air duct are difficult to remove thoroughly, and the air quality of a ventilation system is affected are solved.

Description

Modular prefabricated variable diameter combined air duct Technical Field

[0001] This utility model relates to the field of variable diameter combined air duct technology, and in particular to modular prefabricated variable diameter combined air duct. Background Technology

[0002] The development of prefabricated buildings has promoted the application of prefabricated duct installation technology, requiring more efficient and convenient duct installation. Modular ducts simplify molds and processing techniques, reduce processing difficulty, and can produce different specifications of sheet metal and strip profiles according to different pipe diameters. On-site assembly reduces mold manufacturing costs and offers advantages such as ease of processing and manufacturing, flexible selection, low production costs, and convenient transportation.

[0003] As shown in announcement number CN217977798U, a variable diameter color steel duct includes a color steel duct: the color steel duct includes an inner duct, a support frame, and an outer duct plate. Ventilation openings are provided at both the top and bottom ends of the inner duct. A support frame is provided on the side of the bottom end of the inner duct, and an outer duct plate is provided at the top edge of the support frame. There are four outer duct plates. A gap is provided between the inner duct and the outer duct plate, and a heat-resistant filling plate is provided in the gap. The inner shape and dimensions of the heat-resistant filling plate are the same as the outer shape and dimensions of the inner duct. The heat-resistant filling plate slides and engages with the inner duct. During assembly, the heat-resistant filling plate is placed above the inner square tube and pushed downwards. The heat-resistant filling plate will fit over the outer side of the inner duct and engage with it. Rotating the outer duct plate upwards will then allow the outer duct to clamp and fix the heat-resistant filling plate in conjunction with the inner duct, making the assembly of the heat-resistant filling plate of this variable diameter color steel duct more convenient and labor-saving.

[0004] This patent makes it easier and less labor-intensive to assemble the heat-resistant filling plate. However, existing air ducts do not have a disassembly function. When a lot of impurities are adsorbed on the inner wall, it will be difficult to completely remove the dust and impurities accumulated on the inner wall of the air duct, which will affect the air quality of the ventilation system. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing air ducts do not have a disassembly function, and when a lot of impurities are adsorbed on the inner wall, the dust and impurities accumulated on the inner wall of the air duct are difficult to remove completely, which affects the air quality of the ventilation system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modular prefabricated variable diameter combined air duct, including an air duct body, the surface of which is provided with a disassembly and cleaning component, the disassembly and cleaning component including a frame, the frame having an installation groove inside, the inner walls of both sides of the installation groove having slots, an installation plate being provided inside the installation groove, a bidirectional screw being inserted into the installation plate, a locking block being connected to both sides of the bidirectional screw, the locking block having a threaded hole inside, a first gear being connected to the center position of the surface of the bidirectional screw, a second gear being connected to the front end of the first gear, and a throttle being connected to the front end of the second gear.

[0007] Furthermore, sealing strips are provided on both sides of the mounting plate, and the mounting plate is slidably connected to the frame through the mounting groove.

[0008] Furthermore, the position and size of the first gear match the position and size of the second gear, and the first gear and the second gear form a meshing connection.

[0009] Furthermore, the second gear and the throttle are meshed together, and the bidirectional screw is threadedly connected to the locking block through a threaded hole.

[0010] Furthermore, a shock-absorbing and protective assembly is connected to the bottom of the duct body. The shock-absorbing and protective assembly includes a mounting bracket, and fixing blocks are connected to both sides of the mounting bracket.

[0011] Furthermore, a spring is provided inside the fixing block, the top plate of the spring is connected to a top plate, the top plate of the top plate is connected to a top block, and the top plates of the two sets of top blocks are connected to a buffer plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when the inside of the duct body needs to be cleaned, the handle can be turned to retract the locking block, and then the mounting plate can be pulled outward to complete the quick disassembly and clean the inside of the duct body. This avoids the problem that dust, impurities, etc. accumulated on the inner wall of the duct are difficult to remove completely, which affects the air quality of the ventilation system.

[0014] 2. In this utility model, after the duct body is fixed by the mounting bracket, when vibration occurs, the spring and damper will play a shock absorption and protection role, so as to avoid the problem that the bolts, rivets and other connecting parts between the duct bodies will loosen due to the vibration of the duct body, which would affect the stability of the duct body. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of the modular prefabricated variable diameter combined air duct proposed in this utility model;

[0016] Figure 2 is a three-dimensional structural diagram of the modular prefabricated variable diameter combined air duct proposed in this utility model from another angle.

[0017] Figure 3 is an exploded structural diagram of the frame of the modular prefabricated variable diameter combined air duct proposed in this utility model;

[0018] Figure 4 is a partial exploded structural diagram of the modular prefabricated variable diameter combined air duct proposed in this utility model;

[0019] Figure 5 is a partial cross-sectional structural diagram of the modular prefabricated variable diameter combined air duct proposed in this utility model;

[0020] Figure 6 is a magnified structural diagram of point A in Figure 5.

[0021] Legend: 1. Duct body; 2. Cleaning assembly / disassembly; 201. Frame; 202. Mounting groove; 203. Slot; 204. Mounting plate; 205. Two-way screw; 206. Locking block; 207. Threaded hole; 208. First gear; 209. Second gear; 210. Thruster; 3. Shock absorption and protection assembly; 301. Mounting bracket; 302. Fixing block; 303. Spring; 304. Top block; 305. Top block; 306. Buffer plate. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] As shown in Figures 1-4, this utility model provides a modular prefabricated variable diameter combined air duct, including an air duct body 1. A disassembly and cleaning assembly 2 is provided on the surface of the air duct body 1. The disassembly and cleaning assembly 2 includes a frame 201. An installation groove 202 is provided inside the frame 201. Slots 203 are provided on both inner walls of the installation groove 202. An installation plate 204 is provided inside the installation groove 202. A bidirectional screw 205 is inserted into the installation plate 204. Locking blocks 206 are connected to both sides of the bidirectional screw 205. Threaded holes 207 are provided inside the locking blocks 206. The center of the surface of the bidirectional screw 205... A first gear 208 is connected to the position, a second gear 209 is connected to the front end of the first gear 208, and a throttle 210 is connected to the front end of the second gear 209. Sealing strips are provided on both sides of the mounting plate 204. The mounting plate 204 is slidably connected to the frame 201 through the mounting groove 202. The position and size of the first gear 208 match the position and size of the second gear 209. The first gear 208 and the second gear 209 are meshed. The second gear 209 is meshed with the throttle 210. The bidirectional screw 205 is threadedly connected to the locking block 206 through the threaded hole 207.

[0025] The effect achieved in Embodiment 1 is as follows: When the inner wall of the duct body 1 needs to be cleaned periodically, the handle 210 can be rotated forward, causing the handle 210 to drive the first gear 208 to rotate forward, thereby enabling the first gear 208 to mesh and rotate forward with the second gear 209. This allows the second gear 209 to drive the bidirectional screw 205 to rotate forward, and the bidirectional screw 205 to rotate forward simultaneously with the two sets of locking blocks 206 through the threaded holes 207. The forward threaded rotation drives the two sets of locking blocks 206 to move inward simultaneously, and then pulls the mounting plate 204 outward, so that the mounting plate... The mounting plate 204 can be slid out from the mounting groove 202 for quick disassembly. After that, the operator can clean the inner wall of the duct body 1 using the cleaning function. After cleaning, the mounting plate 204 can be pushed into the mounting groove 202. Then, the handle 210 is reversed so that the handle 210 can drive the bidirectional screw 205 to reverse through the meshing of the gears. This causes the two sets of locking blocks 206 to move to both sides simultaneously through the reverse thread rotation and be inserted into the locking groove 203 for fixation. This avoids the problem of dust and impurities accumulating on the inner wall of the duct being difficult to remove completely, which would affect the air quality of the ventilation system.

[0026] Example 2, as shown in Figures 1 and 6, is a shock-absorbing and protective component 3 connected to the bottom of the duct body 1. The shock-absorbing and protective component 3 includes a mounting bracket 301. Fixing blocks 302 are connected to both sides of the mounting bracket 301. A spring 303 is installed inside the fixing block 302. A top plate 304 is connected to the top plate of the spring 303. A top block 305 is connected to the top plate of the top plate 304. A buffer plate 306 is connected to the top plates of the two sets of top blocks 305.

[0027] The effect achieved in Embodiment 2 is as follows: when the duct body 1 is installed by the mounting bracket 301 and vibration occurs, the top block 305 will push the top plate 304 to squeeze the spring 303, which, together with the damper at the center of the top of the mounting bracket 301, will have a shock absorption effect, thus preventing the duct body 1 from vibrating and causing the bolts, rivets and other connecting parts between the duct bodies 1 to loosen, which would affect the stability of the duct body 1.

[0028] Working principle: When the inside of the duct body 1 needs to be cleaned, the handle 210 can be turned to retract the locking block 206, and then the mounting plate 204 can be pulled outward to complete the quick disassembly and clean the inside of the duct body 1. This avoids the problem of dust and impurities accumulating on the inner wall of the duct being difficult to remove completely, which affects the air quality of the ventilation system. After the duct body 1 is fixed by the mounting bracket 301, when vibration occurs, the spring 303 and the damper will play a shock absorption and protection role, preventing the bolts, rivets and other connecting parts between the duct bodies 1 from loosening due to vibration, which would affect the stability of the duct body 1.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A modular prefabricated variable diameter combined air duct, comprising an air duct body (1), characterized in that: The surface of the duct body (1) is provided with a disassembly and cleaning assembly (2); the disassembly and cleaning assembly (2) includes a frame (201), the inside of the frame (201) is provided with an installation groove (202), the inner walls of both sides of the installation groove (202) are provided with slots (203), the inside of the installation groove (202) is provided with an installation plate (204), the inside of the installation plate (204) is inserted with a double-acting screw (205), the two sides of the double-acting screw (205) are connected with a locking block (206), the inside of the locking block (206) is provided with a threaded hole (207), the center position of the surface of the double-acting screw (205) is connected with a first gear (208), the front end of the first gear (208) is connected with a second gear (209), and the front end of the second gear (209) is connected with a throttle (210).

2. The modular prefabricated variable diameter combined air duct according to claim 1, characterized in that: Sealing strips are provided on both sides of the mounting plate (204), and the mounting plate (204) is slidably connected to the frame (201) through the mounting groove (202).

3. The modular prefabricated variable diameter combined air duct according to claim 2, characterized in that: The position and size of the first gear (208) match the position and size of the second gear (209), and the first gear (208) and the second gear (209) form a meshing connection.

4. The modular prefabricated variable diameter combined air duct according to claim 3, characterized in that: The second gear (209) is meshed with the throttle (210), and the bidirectional screw (205) is threadedly connected to the locking block (206) through the threaded hole (207).

5. The modular prefabricated variable diameter combined air duct according to claim 1, characterized in that: The bottom of the duct body (1) is connected to a shock-absorbing and protective component (3), which includes a mounting bracket (301) and fixing blocks (302) are connected to both sides of the mounting bracket (301).

6. The modular prefabricated variable diameter combined air duct according to claim 5, characterized in that: The fixed block (302) is provided with a spring (303) inside. The top plate of the spring (303) is connected to a top plate (304). The top plate of the top plate (304) is connected to a top block (305). The top plates of the two sets of top blocks (305) are connected to a buffer plate (306).

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