Air conditioning ventilation duct convenient for loading and unloading

Abstract

The utility model discloses an air conditioning ventilation duct that is easy to load and unload, comprising a ventilation duct, four docking boxes that are equidistantly distributed in an annular shape are welded to the front end of the ventilation duct, four docking blocks that are equidistantly distributed in an annular shape are welded to the rear end of the ventilation duct, and the docking blocks are all matched with the docking boxes, and also comprising a transmission cavity, which is opened on the upper side and the lower side of the front end of the ventilation duct, threaded rods are rotatably arranged at both ends of the transmission cavity, and moving blocks are threadedly connected to the outside of the threaded rods, and limiting blocks are welded to one end face of the moving blocks, and one end of the limiting blocks penetrates the transmission cavity and extends to the inside of the docking box, and the limiting blocks are slidably matched with the transmission cavity and the docking box. The air conditioning ventilation duct that is easy to load and unload will not occupy much external space, will not affect the installation and disassembly when the space is limited, and at the same time, only two knobs need to be turned throughout the whole process to complete the loading and unloading, and the overall operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning ventilation ducts, in particular to an air-conditioning ventilation duct which is easy to load and unload. Background Art

[0002] Air conditioning ventilation ducts are an indispensable part of modern buildings. They play a vital role in air conditioning systems. This piping system is mainly made of metal materials such as galvanized sheet, stainless steel, copper, aluminum, etc., and is produced in one go by advanced machinery to ensure high standards and high quality. Its main functions include air supply and ventilation, which effectively transports outdoor fresh air into the room, while exhausting harmful gases to ensure indoor air quality. In addition, air conditioning ventilation ducts also have the characteristics of long pipe diameter, reduced connection, material saving, quiet and comfortable air supply in the eddy current zone, etc. They are widely used in homes, buildings, factories, ships, large shopping malls and other occasions to provide comfortable and healthy air conditions for various environments.

[0003] The existing Chinese patent with announcement number CN218267803U discloses an air-conditioning ventilation duct that is easy to install, including a pipe body, a limit pressure plate, a limit plug plate and a plug column. Four limit pressure plates are connected to one end of the outer wall of the pipe body through an adjusting screw, and a rotating wheel is installed at the end of the adjusting screw away from the pipe body. Two guide rods are symmetrically arranged on both sides of the limit pressure plate on the adjusting screw. The plug column is installed on the side wall of the limit pressure plate facing away from the rotating wheel, and the limit plug plate is installed on the other end of the outer wall of the pipe body, and a plug hole is opened on the limit plug plate.

[0004] Although the above scheme can connect two adjacent ventilation ducts through four screwing operations during the installation process, the four rotations will make the operation process more cumbersome and inconvenient to use. At the same time, the fixing mechanism of the air-conditioning ventilation duct is arranged on the outside, which is easy to occupy space. It is more troublesome to install it in places with limited space. Therefore, it does not meet the existing needs. In this regard, we propose an air-conditioning ventilation duct that is easy to load and unload. Utility Model Content

[0005] The utility model aims to provide an air conditioning ventilation duct that is easy to load and unload, so as to solve the problems in the above background technology that the air conditioning ventilation duct installation operation has many steps that affect the use and is inconvenient to install in places with limited space.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air conditioning ventilation duct that is easy to load and unload, comprising a ventilation duct, four annular equidistantly distributed docking boxes are welded to the front end of the ventilation duct, four annular equidistantly distributed docking blocks are welded to the rear end of the ventilation duct, and the docking blocks are all adapted to the docking boxes;

[0007] It also includes a transmission cavity, which is opened on the upper and lower sides of the front end of the ventilation duct, threaded rods are rotatably arranged at both ends of the transmission cavity, and moving blocks are threadedly connected to the outside of the threaded rods, and one end surface of the moving block is welded with a limiting block, one end of the limiting block passes through the transmission cavity and extends to the inside of the docking box, and the limiting block is slidably matched with the transmission cavity and the docking box, and the inside of the docking block is provided with a limiting hole, and the limiting hole is slidably matched with the limiting block;

[0008] It also includes a first rotating shaft, which is arranged at one end of the threaded rod and is rotatably connected to the transmission cavity. A second rotating shaft is arranged on one side of the first rotating shaft.

[0009] Preferably, one end of the second rotating shaft and the outer wall of the first rotating shaft are both provided with a first bevel gear, and the first bevel gears are meshingly connected.

[0010] Preferably, a second bevel gear is disposed at the other end of the second rotating shaft, and the second bevel gears are meshedly connected with each other.

[0011] Preferably, the outer wall of the second rotating shaft is provided with two bearings, the inner walls of the bearings are fixedly connected to the second rotating shaft, and the outer walls of the bearings are fixedly connected to the inner wall of the transmission cavity.

[0012] Preferably, guide rods are welded at both ends of the transmission cavity, the guide rods pass through the moving block, and the guide rods are slidably matched with the moving block.

[0013] Preferably, L-shaped grooves are opened at the four corners of the front end of the ventilation duct, L-shaped blocks are welded at the four corners of the rear end of the ventilation duct, and the L-shaped blocks are adapted to the L-shaped grooves, and rubber pads are bonded and fixed to the upper and lower end surfaces of the L-shaped blocks.

[0014] Preferably, knobs are provided at the upper and lower parts of the ventilation duct, a rotating rod is fixed at one end of the knob, one end of the rotating rod passes through and extends into the interior of the transmission cavity, and the rotating rod is rotatably cooperated with the transmission cavity, and one end of the rotating rod located inside the transmission cavity is fixedly connected to one of the threaded rods.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a docking box at the front end inside the ventilation duct. When the two ventilation ducts are docked and installed, the docking block is inserted into the interior of the docking box. The threaded rod can drive the moving block to move by turning the knob, so that the limit block can be inserted into the limit hole inside the docking block, and the docking block can be firmly fixed inside the docking box, thereby completing the installation of the two ventilation ducts. Since the docking box is welded inside the ventilation duct, it will not take up much external space, thereby not affecting the installation when the space is limited. The overall operation is convenient and quick.

[0017] The utility model provides two second rotating shafts inside the transmission cavity. When the operator turns the knob, the first rotating shaft is driven to rotate. The first rotating shaft can make one of the second rotating shafts rotate under the transmission of the first bevel gear, and the synchronous rotation of the other second bevel gear can be achieved under the transmission of the second bevel gear. The second bevel gear can achieve the synchronous rotation of the other first rotating shaft under the transmission of another group of first transmission gears, thereby driving the rotation of the other threaded rod. Finally, the movement of the two limit blocks can be achieved by turning the knob. The operator only needs to turn the knob twice to complete the installation process. It is convenient and quick to use, and the ventilation duct can be disassembled by only turning the knob in the opposite direction. It has good practicality.

[0018] The utility model has L-shaped grooves at the four corners of the front end of the ventilation duct, and L-shaped blocks are welded at the four corners of the rear end of the ventilation duct. When the ventilation duct is installed, the L-shaped blocks will be stuck in the L-shaped grooves. Because the upper and lower end surfaces of the L-shaped blocks are adhered and fixed with rubber pads, when the L-shaped block is stuck in the L-shaped groove, the rubber pad will fit tightly with the wall surface of the L-shaped groove under the action of pressure to form an effective sealing layer. This sealing layer can significantly reduce the leakage of air at the connection of the ventilation duct, thereby maintaining good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the internal structure of the utility model;

[0021] Figure 3 It is a side view schematic diagram of the internal structure of the utility model;

[0022] Figure 4 For the utility model Figure 2 A partial enlarged view of the middle A area;

[0023] Figure 5 For the utility model Figure 2 A partial enlarged view of the middle B area;

[0024] Figure 6 For the utility model Figure 3 A partial enlarged view of area C in the middle.

[0025] In the figure: 1. ventilation duct; 2. docking box; 3. docking block; 4. transmission chamber; 5. threaded rod; 6. moving block; 7. guide rod; 8. first rotating shaft; 9. second rotating shaft; 10. first bevel gear; 11. second bevel gear; 12. bearing; 13. rotating rod; 14. knob; 15. L-shaped groove; 16. L-shaped block; 17. rubber cushion; 18. limit hole; 19. limit block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 The utility model provides a technical solution: an air conditioning ventilation duct that is easy to load and unload, comprising a ventilation duct 1, four annular equidistantly distributed docking boxes 2 are welded to the front end of the ventilation duct 1, and four annular equidistantly distributed docking blocks 3 are welded to the rear end of the ventilation duct 1, and the docking blocks 3 are all adapted to the docking boxes 2;

[0028] It also includes a transmission cavity 4, which is opened on the upper and lower sides of the front end of the ventilation duct 1, and threaded rods 5 are rotatably arranged at both ends of the transmission cavity 4, and the outer sides of the threaded rods 5 are threadedly connected with moving blocks 6, and one end surface of the moving blocks 6 is welded with a limiting block 19, one end of the limiting block 19 passes through the transmission cavity 4 and extends to the inside of the docking box 2, and the limiting block 19 is slidably matched with the transmission cavity 4 and the docking box 2, and the inside of the docking block 3 is provided with a limiting hole 18, and the limiting hole 18 is slidably matched with the limiting block 19;

[0029] It also includes a first rotating shaft 8 which is arranged at one end of the threaded rod 5 , and the first rotating shaft 8 is rotatably connected to the transmission cavity 4 , and a second rotating shaft 9 is arranged on one side of the first rotating shaft 8 .

[0030] When in use, the docking blocks 3 of the two ventilation ducts 1 are inserted into the docking box 2. The operator can make the limit block 19 pass through the limit hole 18 of the docking block 3 by turning the knob 14 to fix the docking block 3. The fixation can be released by turning the knob 14 in the opposite direction, thereby simplifying the loading and unloading process. In addition, when the pipes are connected, the L-shaped block 16 is inserted into the L-shaped groove 15, and the rubber pad 17 is pressed and fits tightly with the groove wall to form an effective sealing layer, reduce air leakage, and ensure good sealing performance. The entire operation process is simple and efficient, which improves the convenience and sealing of the ventilation duct connection.

[0031] See also Figure 4 One end of the second rotating shaft 9 and the outer wall of the first rotating shaft 8 are both provided with a first bevel gear 10, and the first bevel gears 10 are meshed and connected with each other. The transmission between the first rotating shaft 8 and the second rotating shaft 9 is realized through a pair of mutually meshing first bevel gears 10, thereby ensuring that the two threaded rods 5 can rotate synchronously, simplifying the operation process and improving the connection efficiency;

[0032] See also Figure 5 , the other end of the second rotating shaft 9 is provided with a second bevel gear 11, and the second bevel gears 11 are meshed and connected with each other. The meshing transmission of the second bevel gears 11 enables the two second rotating shafts 9 to rotate synchronously, further ensuring the synchronous movement of the threaded rod 5 and enhancing the stability and reliability of the entire connection mechanism;

[0033] See also Figure 2 The outer wall of the second rotating shaft 9 is provided with two bearings 12, the inner walls of the bearings 12 are fixedly connected to the second rotating shaft 9, and the outer walls of the bearings 12 are fixedly connected to the inner wall of the transmission chamber 4. The addition of the bearings 12 reduces the friction resistance of the second rotating shaft 9 during the transmission process, making the rotation smoother, thereby ensuring the smooth rotation of the second rotating shaft 9;

[0034] See also Figure 2 and Figure 3 Guide rods 7 are welded at both ends of the transmission cavity 4, and the guide rods 7 penetrate the moving block 6, and the guide rods 7 slide with the moving block 6. The guide rods 7 provide a stable sliding track for the moving block 6, ensuring that the moving block 6 can move straight along a predetermined track when the threaded rod 5 is rotated, thereby improving the connection accuracy and stability;

[0035] See also Figure 1 , Figure 3 , Figure 5 and Figure 6 L-shaped grooves 15 are provided at the four corners of the front end of the ventilation duct 1, and L-shaped blocks 16 are welded at the four corners of the rear end of the ventilation duct 1, and the L-shaped blocks 16 are adapted to the L-shaped grooves 15, and the upper and lower end surfaces of the L-shaped blocks 16 are adhered and fixed with rubber pads 17. The mutual cooperation between the L-shaped grooves 15 and the L-shaped blocks 16 realizes the rapid connection between the ventilation ducts 1, and the rubber pads 17 increase the sealing of the connection, effectively preventing air leakage;

[0036] See also Figure 1 and Figure 2Knobs 14 are provided at the upper and lower parts of the ventilation duct 1, and a rotating rod 13 is fixed at one end of the knob 14. One end of the rotating rod 13 penetrates and extends into the interior of the transmission cavity 4, and the rotating rod 13 rotates with the transmission cavity 4. The end of the rotating rod 13 located inside the transmission cavity 4 is fixedly connected to one of the threaded rods 5. By rotating the knob 14, the rotating rod 13 and the threaded rod 5 can be driven to rotate, thereby realizing the quick connection and fixation of the ventilation duct 1, which is simple and convenient to operate and improves work efficiency.

[0037] Working principle: When in use, the front and rear ends of the two ventilation ducts 1 are docked, and the docking block 3 is inserted into the interior of the docking box 2. The operator turns the knob 14, and the knob 14 drives the rotating rod 13 to rotate. The rotating rod 13 drives one of the threaded rods 5 in the transmission chamber 4 to rotate, and the threaded rod 5 drives one of the first rotating shafts 8 to rotate one of the first bevel gears 10. The meshing connection between the first bevel gear 10 and the other first bevel gear 10 can realize the synchronous rotation of one of the second rotating shafts 9, and the second rotating shaft 9 will rotate the other second rotating shaft 9 under the meshing transmission of the second bevel gear 11, and the other second rotating shaft 9 will make the other first rotating shaft 8 drive the other threaded rod 5 to rotate synchronously through another group of first bevel gears 10, so that the synchronous rotation of the two threaded rods 5 in the transmission chamber 4 can be realized by turning a knob 14, and the rotation of the threaded rod 5 will drive the moving block 6 to rotate synchronously. The movable block 6 is slidably matched with the guide rod 7, so that the movable block 6 will be axially limited, and the rotation of the movable block 6 will be converted into linear movement, thereby driving the limit block 19 to move into the interior of the docking box 2, so that the limit block 19 passes through the limit hole 18 opened in the docking block 3, so that the docking block 3 can be firmly fixed in the interior of the docking box 2, and the same operation is performed on the knob 14 below, so that the connection between the two ventilation ducts 1 can be quickly completed, and the two ventilation ducts 1 can be released by rotating the knob 14 in the opposite direction, so that the loading and unloading of the ventilation ducts 1 can be achieved by simply rotating the knob 14, which is convenient to use. At the same time, when the two ventilation ducts 1 are installed, the L-shaped block 16 will be stuck in the interior of the L-shaped groove 15, and the rubber pad 17 will fit tightly with the wall of the L-shaped groove 15 under pressure to form an effective sealing layer, which can significantly reduce the leakage of air at the connection of the ventilation ducts, thereby maintaining good sealing performance.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An air conditioning ventilation duct that is easy to load and unload, comprising a ventilation duct (1), wherein the front end of the ventilation duct (1) is welded with four docking boxes (2) that are equidistantly distributed in a ring shape, and the rear end of the ventilation duct (1) is welded with four docking blocks (3) that are equidistantly distributed in a ring shape, and the docking blocks (3) are all compatible with the docking boxes (2), characterized in that: It also includes a transmission cavity (4) which is provided at the upper and lower sides of the front end of the ventilation duct (1); threaded rods (5) are rotatably provided at both ends of the transmission cavity (4); the outer sides of the threaded rods (5) are threadedly connected to moving blocks (6); one end surface of the moving blocks (6) is welded with a limiting block (19); one end of the limiting block (19) passes through the transmission cavity (4) and extends to the inside of the docking box (2); the limiting block (19) is slidably matched with the transmission cavity (4) and the docking box (2); and the docking blocks (3) are provided with limiting holes (18) inside, and the limiting holes (18) are slidably matched with the limiting blocks (19); It also includes a first rotating shaft (8), which is arranged at one end of the threaded rod (5), and the first rotating shaft (8) is rotatably connected to the transmission chamber (4), and a second rotating shaft (9) is arranged on one side of the first rotating shaft (8).

2. The air conditioning ventilation duct that is easy to load and unload according to claim 1 is characterized in that: One end of the second rotating shaft (9) and the outer wall of the first rotating shaft (8) are both provided with a first bevel gear (10), and the first bevel gears (10) are meshingly connected.

3. The air conditioning ventilation duct that is easy to load and unload according to claim 2 is characterized in that: The other end of each of the second rotating shafts (9) is provided with a second bevel gear (11), and the second bevel gears (11) are meshingly connected with each other.

4. The air conditioning ventilation duct that is easy to load and unload according to claim 2 is characterized in that: The outer wall of the second rotating shaft (9) is provided with two bearings (12), the inner walls of the bearings (12) are fixedly connected to the second rotating shaft (9), and the outer walls of the bearings (12) are fixedly connected to the inner wall of the transmission chamber (4).

5. The air conditioning ventilation duct that is easy to load and unload according to claim 1 is characterized in that: Guide rods (7) are welded at both ends of the transmission cavity (4), the guide rods (7) penetrate the moving block (6), and the guide rods (7) are slidably matched with the moving block (6).

6. The air conditioning and ventilation duct that is easy to load and unload according to claim 1 is characterized in that: L-shaped grooves (15) are provided at the four corners of the front end of the ventilation duct (1), and L-shaped blocks (16) are welded at the four corners of the rear end of the ventilation duct (1), and the L-shaped blocks (16) are all compatible with the L-shaped grooves (15), and rubber cushions (17) are bonded and fixed to the upper and lower end surfaces of the L-shaped blocks (16).

7. The air conditioning and ventilation duct that is easy to load and unload according to claim 1 is characterized in that: The ventilation duct (1) is provided with a knob (14) at the upper and lower parts thereof, a rotating rod (13) is fixed to one end of the knob (14), one end of the rotating rod (13) penetrates and extends into the interior of the transmission cavity (4), and the rotating rod (13) is rotatably matched with the transmission cavity (4), and one end of the rotating rod (13) located inside the transmission cavity (4) is fixedly connected to one of the threaded rods (5).

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