Air supply branch pipe with adjustable air volume

Abstract

The utility model relates to the technical field of air supply pipes, and discloses an air volume adjustable air supply branch pipe which comprises a main pipe body, the outer wall of the main pipe body is fixedly connected with a fixing ring, the interior of the fixing ring is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a rotating handle, and the other end of the rotating shaft is fixedly connected with a main bevel gear. The outer wall of the rotating shaft is rotationally connected with a connecting base, an auxiliary bevel gear is arranged on the outer wall of the connecting base, the main bevel gear is meshed with the auxiliary bevel gear, a threaded rod is fixedly connected to the interior of the auxiliary bevel gear, and the outer wall of the threaded rod is rotationally connected to the interior of the connecting base. According to the device, the rotating handle is rotated to drive the main bevel gear and the auxiliary bevel gear to rotate in a meshed mode, and then the sliding base and the baffle are driven to slide on the threaded rod to adjust the distance between the baffle and the fixing plate, so that the effect of adjusting the air volume in the branch pipe is achieved, and control over the air volume in the branch pipe is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply pipes, in particular to an air supply branch pipe with adjustable air volume. Background Art

[0002] Central air conditioning is a large air conditioning system, usually composed of a main unit, air supply ducts and air outlets. Central air conditioning is usually used in large buildings. Ventilation ducts play a vital role in central air conditioning systems. They can transport cold and hot air to every corner of large buildings. They generally include an air supply main and multiple air supply branches connected to the wall of the air supply main.

[0003] A Chinese patent document with the search announcement number CN218094849U discloses a novel air supply branch pipe assembly, comprising two main pipes, the adjacent ends of the outer walls of the two main pipes are fixedly sleeved with a fixing ring, the opposite surfaces of the two fixing rings are provided with an annular groove, the outer wall of the main pipe located at the front end is also fixedly connected with a fixing block, the front surface of the fixing ring located at the front end is also provided with a through groove, an adjustment mechanism is arranged between the two main pipes, the adjustment mechanism comprises an intermediate ring, the upper end of the fixing block is provided with a circular groove, a round rod is movably sleeved in the circular groove, the front end of the round rod is fixedly connected with a pull ring, the rod surface of the round rod is movably sleeved with a spring, and the two ends of the spring are respectively fixedly connected with the pull ring and the fixing block. The entire intermediate ring can be deflected to achieve the effect of adjusting the direction of the branch pipe without disassembling the intermediate ring, thereby improving the installation and adjustment efficiency. When the support block moves to the right, the two clamping rings lose their restrictions, and the two movable rings can move closer to each other, so that the clamping ring is separated from the annular groove. However, the air volume inside the branch pipe cannot be adjusted in this scheme, which easily leads to waste of air volume. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an air supply branch pipe with adjustable air volume, aiming to improve the problem that most of the existing air supply branch pipes cannot adjust the internal air volume.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an air supply branch pipe with adjustable air volume, comprising a main pipe body, the outer wall of the main pipe body is fixedly connected with a fixing ring, the interior of the fixing ring is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a turning handle, the other end of the rotating shaft is fixedly connected with a main bevel gear, the outer wall of the rotating shaft is rotatably connected with a connecting seat, the outer wall of the connecting seat is provided with a secondary bevel gear, the main bevel gear is meshed with the secondary bevel gear, the interior of the secondary bevel gear is fixedly connected with a threaded rod, the outer wall of the threaded rod is rotatably connected to the interior of the connecting seat, the outer wall of the threaded rod is threadedly connected with a sliding seat, the outer wall of the sliding seat is fixedly connected with a left-right symmetrical baffle, the outer wall of the baffle is slidably connected to the interior of the main pipe body, the outer wall of the threaded rod is rotatably connected with a fixing plate, the outer wall of the fixing plate is fixedly connected to the interior of the main pipe body, and a sealing assembly is provided inside the main pipe body.

[0006] Furthermore, the sealing assembly includes a sealing ring, one side of the outer wall of the sealing ring is slidably connected to the inside of the main pipe, the other side of the outer wall of the sealing ring is fixedly connected to the inside of the baffle, and the other side of the outer wall of the sealing ring is fixedly connected to the inside of the fixed plate.

[0007] Furthermore, a mounting pipe is fixedly connected to the outer wall of the main pipe body, and a limiting column is fixedly connected to the interior of the mounting pipe.

[0008] Furthermore, a straight rod is fixedly connected to the interior of the limiting column, and a first spring is sleeved on the outer wall of the straight rod.

[0009] Furthermore, one end of the first spring is fixedly connected to the inside of the limiting column, the other end of the first spring is fixedly connected to a sliding ball, the outer wall of the sliding ball is slidably connected to the auxiliary tube body, and the outer wall of the straight rod is slidably connected to the inside of the sliding ball.

[0010] Furthermore, a second spring is arranged inside the mounting tube, one end of the second spring is fixedly connected to the inside of the mounting tube, and the other end of the second spring is fixedly connected to a fixing seat.

[0011] Furthermore, a roller is rotatably connected inside the fixing seat, and a mounting ring is fixedly connected inside the auxiliary tube body.

[0012] Furthermore, an insert block is fixedly connected to the outer wall of the mounting ring, and the outer wall of the insert block is slidably connected to the inside of the mounting tube.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the main bevel gear and the auxiliary bevel gear are first driven to mesh and rotate by rotating the handle, and then the slide seat and the baffle are driven to slide on the threaded rod to adjust the distance between the baffle and the fixed plate, so as to achieve the effect of adjusting the air volume inside the branch pipe, solve the problem that most of the existing air supply branch pipes cannot adjust the internal air volume, improve the practicability of the branch pipe, and facilitate the control of the air volume inside the branch pipe.

[0015] 2. In the utility model, by pulling the auxiliary pipe body outward, the roller will slide on the inclined surface of the plug block, and at the same time the sliding ball compresses the first spring to slide inside the limit column, so that the branch pipe can be quickly disassembled, which solves the problem that most of the existing air supply branch pipes cannot be disassembled and repaired, improves the convenience of the branch pipe, and extends the service life of the branch pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an air supply branch pipe with adjustable air volume proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the main body of an air supply branch pipe with adjustable air volume proposed by the utility model;

[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 The utility model discloses a cross-sectional view of the internal structure of an installation pipe of an air supply branch pipe with adjustable air volume.

[0020] Legend:

[0021] 1. Main body; 2. Fixed ring; 3. Rotating shaft; 4. Turning handle; 5. Main bevel gear; 6. Connecting seat; 7. Auxiliary bevel gear; 8. Threaded rod; 9. Sliding seat; 10. Baffle; 11. Fixed plate; 12. Sealing ring; 13. Mounting tube; 14. Limiting column; 15. Straight rod; 16. First spring; 17. Sliding ball; 18. Second spring; 19. Fixed seat; 20. Roller; 21. Auxiliary body; 22. Mounting ring; 23. Insert block. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figure 1-Figure 3, the utility model provides an embodiment: an air supply branch pipe with adjustable air volume, comprising a main pipe body 1, the outer wall of the main pipe body 1 is fixedly connected with a fixing ring 2, the interior of the fixing ring 2 is rotatably connected with a rotating shaft 3, one end of the rotating shaft 3 is fixedly connected with a turning handle 4, the other end of the rotating shaft 3 is fixedly connected with a main bevel gear 5, the outer wall of the rotating shaft 3 is rotatably connected with a connecting seat 6, the outer wall of the connecting seat 6 is provided with a secondary bevel gear 7, the main bevel gear 5 is meshed with the secondary bevel gear 7, the interior of the secondary bevel gear 7 is fixedly connected with a threaded rod 8, the outer wall of the threaded rod 8 is rotatably connected to the interior of the connecting seat 6, the outer wall of the threaded rod 8 is threadedly connected with a sliding seat 9, the outer wall of the sliding seat 9 is fixedly connected with a left-right symmetrical baffle 10, the outer wall of the baffle 10 is slidably connected to the interior of the main pipe body 1, the outer wall of the threaded rod 8 is rotatably connected with a fixing plate 11, the outer wall of the fixing plate 11 is fixedly connected to the interior of the main pipe body 1, and a sealing component is provided inside the main pipe body 1;

[0024] Specifically, when the air volume in the pipe needs to be adjusted, the rotating shaft 3 and the main bevel gear 5 are driven to rotate by turning the handle 4. In this way, the secondary bevel gear 7 can be driven by the main bevel gear 5 to rotate. At the same time, the connecting seat 6 can limit the positions of the main bevel gear 5 and the secondary bevel gear 7. In addition, a threaded rod 8 is fixed inside the secondary bevel gear 7, so that the slide 9 can slide on the outer wall of the threaded rod 8. The movement of the slide 9 drives the baffles 10 on both sides to slide inside the main pipe body 1, so that the distance between the baffle 10 and the fixed plate 11 can be continuously adjusted. In this way, the air volume inside the branch pipe can be accurately adjusted, thereby achieving the ideal effect of controlling the air volume. Thereby, the practicality of the branch pipe is greatly improved. Not only is the structure simple and easy to operate, but also the precise control of the air volume can be achieved.

[0025] Reference Figure 2-Figure 3 The sealing assembly includes a sealing ring 12, one side of the outer wall of the sealing ring 12 is slidably connected to the inside of the main body 1, the other side of the outer wall of the sealing ring 12 is fixedly connected to the inside of the baffle 10, and the other side of the outer wall of the sealing ring 12 is fixedly connected to the inside of the fixed plate 11;

[0026] Specifically, the sealing ring 12 is fixed inside the baffle 10 and the fixing plate 11 respectively, so that when the baffle 10 and the fixing plate 11 overlap, the sealing ring 12 can be compounded to seal the inside of the main pipe 1, thereby achieving the effect of fully sealing the inside of the main pipe 1.

[0027] Reference Figure 1 , Figure 2 and Figure 4The outer wall of the main body 1 is fixedly connected with a mounting tube 13, and the interior of the mounting tube 13 is fixedly connected with a limiting column 14; the interior of the limiting column 14 is fixedly connected with a straight rod 15, and the outer wall of the straight rod 15 is sleeved with a first spring 16; one end of the first spring 16 is fixedly connected to the interior of the limiting column 14, and the other end of the first spring 16 is fixedly connected with a sliding ball 17, and the outer wall of the sliding ball 17 is slidably connected with a secondary tube body 21, and the outer wall of the straight rod 15 is slidably connected to the interior of the sliding ball 17; a second spring 18 is arranged inside the mounting tube 13, one end of the second spring 18 is fixedly connected to the interior of the mounting tube 13, and the other end of the second spring 18 is fixedly connected to a fixing seat 19; a roller 20 is rotatably connected to the interior of the fixing seat 19, and a mounting ring 22 is fixedly connected to the interior of the secondary tube body 21; an insert 23 is fixedly connected to the outer wall of the mounting ring 22, and the outer wall of the insert 23 is slidably connected to the interior of the mounting tube 13;

[0028] Specifically, first, by pulling the auxiliary tube body 21 outward, the plug block 23 can push the roller 20 to slide on the inclined surface of the plug block 23. At the same time, the roller 20 will compress the second spring 18 by the fixed seat 19. Next, when the auxiliary tube body 21 slides out of the outer wall of the mounting tube 13, the sliding ball 17 slides on the inner wall of the auxiliary tube body 21 while squeezing the first spring 16 inside the limiting column 14. This step ensures the smooth disassembly process and avoids the difficulty of disassembly caused by the jamming of components. When the auxiliary tube body 21 and the mounting ring 22 are completely separated from the outer wall of the main body 1, the second spring 18 and the first spring 16 will reset the roller 20 and the sliding ball 17. In this way, the device can automatically return to its original position after the disassembly is completed, and prepare for the next disassembly. It not only improves work efficiency and reduces manpower and time costs, but also ensures the safety and stability of the branch pipe and extends its service life.

[0029] Working principle: when the air volume in the pipe needs to be adjusted, the rotating shaft 3 and the main bevel gear 5 are driven to rotate by turning the handle 4. Since the main bevel gear 5 and the auxiliary bevel gear 7 are meshed with each other, the auxiliary bevel gear 7 can be driven by the main bevel gear 5 to rotate, wherein the connecting seat 6 can limit the positions of the main bevel gear 5 and the auxiliary bevel gear 7, and then the threaded rod 8 is fixed inside the auxiliary bevel gear 7, so that the sliding seat 9 can slide on the outer wall of the threaded rod 8, thereby driving the baffles 10 on both sides to slide inside the main pipe body 1, so that the baffles 10 can continuously adjust the distance between the fixed plate 11, thereby achieving the effect of adjusting the air volume inside the branch pipe, improving the practicability of the branch pipe, and facilitating the adjustment of the air volume inside the branch pipe. When the branch pipe needs to be quickly disassembled, the auxiliary tube body 21 is pulled outward so that the plug block 23 can push the roller 20 to slide on the inclined surface of the plug block 23. At the same time, the roller 20 will compress the second spring 18 by the fixing seat 19, and then the auxiliary tube body 21 will slide out of the outer wall of the mounting tube 13 while the sliding ball 17 slides on the inner wall of the auxiliary tube body 21 while squeezing the first spring 16 inside the limiting column 14. When the auxiliary tube body 21 and the mounting ring 22 are completely separated from the outer wall of the main body 1, the second spring 18 and the first spring 16 will reset the roller 20 and the sliding ball 17, so as to achieve the effect of quickly disassembling the branch pipe, improve the convenience of the branch pipe, and extend the service life of the branch pipe.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air supply branch pipe with adjustable air volume, comprising a main pipe body (1), characterized in that: The outer wall of the main pipe body (1) is fixedly connected to a fixing ring (2), the interior of the fixing ring (2) is rotatably connected to a rotating shaft (3), one end of the rotating shaft (3) is fixedly connected to a turning handle (4), the other end of the rotating shaft (3) is fixedly connected to a main bevel gear (5), the outer wall of the rotating shaft (3) is rotatably connected to a connecting seat (6), the outer wall of the connecting seat (6) is provided with a secondary bevel gear (7), the main bevel gear (5) is meshed with the secondary bevel gear (7), the interior of the secondary bevel gear (7) is fixedly connected to a threaded rod ( 8), the outer wall of the threaded rod (8) is rotatably connected to the inside of the connecting seat (6), the outer wall of the threaded rod (8) is threadedly connected to a sliding seat (9), the outer wall of the sliding seat (9) is fixedly connected to a left-right symmetrical baffle (10), the outer wall of the baffle (10) is slidably connected to the inside of the main pipe (1), the outer wall of the threaded rod (8) is rotatably connected to a fixing plate (11), the outer wall of the fixing plate (11) is fixedly connected to the inside of the main pipe (1), and a sealing component is arranged inside the main pipe (1).

2. The air supply branch pipe with adjustable air volume according to claim 1, characterized in that: The sealing assembly comprises a sealing ring (12), one side of an outer wall of the sealing ring (12) is slidably connected to the interior of the main pipe (1), the other side of the outer wall of the sealing ring (12) is fixedly connected to the interior of the baffle (10), and the other side of the outer wall of the sealing ring (12) is fixedly connected to the interior of the fixed plate (11).

3. The air supply branch pipe with adjustable air volume according to claim 2, characterized in that: The outer wall of the main pipe (1) is fixedly connected to a mounting pipe (13), and the interior of the mounting pipe (13) is fixedly connected to a limiting column (14).

4. The air supply branch pipe with adjustable air volume according to claim 3, characterized in that: A straight rod (15) is fixedly connected to the interior of the limiting column (14), and a first spring (16) is sleeved on the outer wall of the straight rod (15).

5. The air supply branch pipe with adjustable air volume according to claim 4, characterized in that: One end of the first spring (16) is fixedly connected to the inside of the limiting column (14), the other end of the first spring (16) is fixedly connected to a sliding ball (17), the outer wall of the sliding ball (17) is slidably connected to a secondary tube body (21), and the outer wall of the straight rod (15) is slidably connected to the inside of the sliding ball (17).

6. The air supply branch pipe with adjustable air volume according to claim 5, characterized in that: A second spring (18) is arranged inside the mounting tube (13), one end of the second spring (18) is fixedly connected to the inside of the mounting tube (13), and the other end of the second spring (18) is fixedly connected to a fixing seat (19).

7. The air supply branch pipe with adjustable air volume according to claim 6, characterized in that: A roller (20) is rotatably connected inside the fixing seat (19), and a mounting ring (22) is fixedly connected inside the auxiliary tube body (21).

8. The air supply branch pipe with adjustable air volume according to claim 7, characterized in that: An insert block (23) is fixedly connected to the outer wall of the mounting ring (22), and the outer wall of the insert block (23) is slidably connected to the interior of the mounting tube (13).

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