Air pipe capable of adjusting air volume

Abstract

The utility model discloses an air pipe capable of adjusting air volume, which comprises a ventilation pipe with two open ends; a multi-layer plugging device is arranged in the ventilation pipe, a position adjusting device used for adjusting the position of the multi-layer plugging device is inserted in the middle of the multi-layer plugging device in a penetrating mode, a positioning device is installed on the ventilation pipe, and a reversing assembly is connected between the position adjusting device and the positioning device. The plurality of telescopic ventilation plates are coaxially arranged side by side in a tower shape; a plugging plate; and a limiting assembly. The arrangement mode that the multiple layers of plugging devices are matched with the position adjusting devices is utilized, the positions of the plugging plates are driven through the position adjusting devices, so that the horizontal positions of the plugging plates can be adjusted, the caliber of the telescopic ventilation plate can be selected according to the ventilation quantity under the penetrating connection of the limiting assemblies, and the ventilation efficiency is improved. The requirement that the ventilation quantity needs to be adjusted in different use environments is met.

Description

Technical Field

[0001] The utility model relates to the field of air ducts, in particular to an air duct capable of adjusting air volume. Background Art

[0002] Ventilation ducts are mainly used for ventilation in industrial and civil buildings, or for conveying air in air conditioning projects. Some ventilation ducts on the market have a straight-line pipe structure with two ends open. The ventilation volume of this type of ventilation duct is usually a fixed value. The existing technology is not convenient for adjusting the ventilation diameter, and it is also not convenient to adjust the size of the ventilation volume, so it is difficult to meet the need to adjust the ventilation volume in different use environments. Utility Model Content

[0003] The utility model aims to provide an air duct with adjustable air volume to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an air duct with adjustable air volume, comprising:

[0005] A ventilation pipe, wherein the ventilation pipe is open at both ends;

[0006] The ventilation pipe is provided with a multi-layer plugging device inside, a position adjustment device for adjusting the position of the multi-layer plugging device is inserted in the middle of the multi-layer plugging device, a positioning device is installed on the ventilation pipe, a reversing component is connected between the position adjustment device and the positioning device, and the multi-layer plugging device includes:

[0007] Telescopic ventilation plates, a plurality of said telescopic ventilation plates are arranged coaxially side by side in a tower shape;

[0008] A blocking plate, wherein the blocking plate and the telescopic ventilation plate are coaxially arranged side by side, and the blocking plate is located at the tip of the telescopic ventilation plate;

[0009] A limiting component is inserted and connected to the telescopic ventilation plate, and the limiting component is used to limit the sliding of adjacent telescopic ventilation plates.

[0010] Preferably, the diameters of the plurality of telescopic ventilation plates gradually decrease, and ventilation holes for ventilation are provided in the middle of the telescopic ventilation plates.

[0011] Preferably, a plurality of the limiting components are arranged in a ring array, the limiting components are slidably and interlacedly connected with the threaded rod, and the limiting components include:

[0012] A guide rod, the guide rod being slidably interlaced with the telescopic ventilation plate;

[0013] A limiting plate is fixedly connected to one end of the guide rod.

[0014] Preferably, the position adjustment device comprises:

[0015] A threaded rod, the threaded rod is horizontally arranged and interspersed with the inner cavity of the ventilation hole;

[0016] A nut seat, the nut seat is fixedly inserted and installed in the middle of the blocking plate, and the threaded rod is threadedly inserted and connected with the nut seat;

[0017] A bearing frame is rotatably connected to two ends of the threaded rod and is installed inside the ventilation pipe.

[0018] Preferably, the positioning device comprises:

[0019] A rotating rod, the rotating rod and the ventilation pipe are arranged to rotate and intersect each other;

[0020] A fixing seat, the fixing seat is fixedly mounted on the outer wall of the ventilation pipe, and the rotating rod is rotatably interlaced with the fixing seat;

[0021] A rotating handle connected to one end of the rotating rod;

[0022] An elastic positioning component is installed at the end of the turning handle and is used for inserting and positioning the fixing seat.

[0023] Preferably, the elastic positioning assembly comprises:

[0024] A fixed cylinder, the fixed cylinder is fixedly mounted on the end of the turning handle;

[0025] A positioning rod, the positioning rod is slidably arranged inside the fixing tube, a plurality of slots are provided in a circular array on the fixing seat, one end of the positioning rod cooperates with the inner cavity of the slot;

[0026] A sliding ring, wherein the sliding ring is slidably sleeved on the outside of the fixed tube, the inner wall of the sliding ring is fixedly connected with a connecting block, one end of the connecting block is connected to the positioning plug rod, and the connecting block is slidably inserted and connected with the fixed tube;

[0027] A spring is connected to the other end of the positioning rod and is installed inside the fixing tube.

[0028] Preferably, an internal movable sleeve of the spring is provided with an insertion rod, the insertion rod is fixedly installed inside the fixed tube, and the insertion rod is slidably and interlacedly connected with the positioning insertion rod.

[0029] Technical effects and advantages of the utility model:

[0030] The utility model utilizes a setting method in which a multi-layer sealing device and a position adjustment device are coordinated. The position of the sealing plate is driven by the position adjustment device, so that the horizontal position of the sealing plate can be adjusted. Under the interlaced connection of the limit assembly, the caliber of the telescopic ventilation plate to be used can be selected according to the ventilation volume, so as to meet the needs of adjusting the ventilation volume in different usage environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0032] Figure 2 This is a schematic diagram of the expanded structure of the multi-layer plugging device of the utility model.

[0033] Figure 3 It is a schematic diagram of the internal structure of the telescopic ventilation plate of the utility model.

[0034] Figure 4 It is a schematic diagram of the internal structure of the positioning device of the utility model.

[0035] Figure 5 It is a schematic diagram of the internal structure of the elastic positioning component of the utility model.

[0036] In the figure: 1. ventilation duct; 2. multi-layer blocking device; 21. telescopic ventilation plate; 211. ventilation hole; 22. blocking plate; 23. limit assembly; 231. guide rod; 232. limit plate; 3. position adjustment device; 31. threaded rod; 32. nut seat; 33. bearing frame; 4. reversing assembly; 5. positioning device; 51. rotating rod; 52. fixing seat; 53. rotating handle; 54. elastic positioning assembly; 541. fixing cylinder; 542. positioning plug rod; 543. sliding ring; 544. spring. DETAILED DESCRIPTION

[0037] 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.

[0038] The utility model provides Figure 1-5The air duct with adjustable air volume shown in the figure comprises: a ventilation pipe 1, which is open at both ends; a multi-layer blocking device 2 is arranged inside the ventilation pipe 1, and a position adjustment device 3 for adjusting the position of the multi-layer blocking device 2 is inserted in the middle of the multi-layer blocking device 2; a positioning device 5 is installed on the ventilation pipe 1, and a reversing component 4 is connected between the position adjustment device 3 and the positioning device 5, and the reversing component 4 is composed of two reversing gears, which is convenient for reversing the rotation direction, so that the rotation of the rotating rod 51 can drive the rotation of the threaded rod 31 perpendicular to it, and the multi-layer blocking device 2 comprises: a telescopic ventilation plate 21, a plurality of telescopic ventilation plates 21 are arranged coaxially side by side in a tower shape, and the diameters of the plurality of telescopic ventilation plates 21 gradually decrease, and a ventilation hole 211 for ventilation is opened in the middle of the telescopic ventilation plate 21, through the coaxial arrangement of the plurality of telescopic ventilation plates 21, and because the diameter of the ventilation hole 211 on each telescopic ventilation plate 21 is proportional to the telescopic ventilation plate 21, the telescopic ventilation plate 21 with the largest diameter It is fixedly installed inside the ventilation pipe 1, so the diameters of the multiple ventilation holes 211 are gradually reduced. When the telescopic ventilation plate 21 with a small diameter covers the telescopic ventilation plate 21 with a large diameter, the inner cavity of the ventilation hole 211 with a large diameter is partially covered, so that the ventilation volume is determined by the ventilation hole 21 with a small diameter. It can be seen that when multiple telescopic ventilation plates 21 are covered and stacked together, the telescopic ventilation plate 21 with the smallest diameter determines the ventilation volume. Therefore, by adjusting the position of the telescopic ventilation plate 21, the ventilation volume can be adjusted; the blocking plate 22, the blocking plate 22 and the telescopic ventilation plate 21 are coaxially arranged side by side, and the blocking plate 22 is located at the tip of the telescopic ventilation plate 21. The blocking plate 22 is convenient for covering and blocking the telescopic ventilation plate 21 with the smallest diameter at the end, so that the inner cavity of the ventilation pipe 1 can be completely blocked; the limiting component 23, the limiting component 23 is inserted and connected to the telescopic ventilation plate 21, and the limiting component 23 is used to limit the sliding of adjacent telescopic ventilation plates 21.

[0039] Specifically, multiple limit assemblies 23 are arranged in a circular array, and the limit assemblies 23 are slidably and interlacedly connected with the threaded rod 31. The limit assemblies 23 include: a guide rod 231, which is slidably and interlacedly connected with the telescopic ventilation plate 21; a limit plate 232, which is fixedly connected to one end of the guide rod 231. The guide rod 231 can be connected to the telescopic ventilation plate 21, or to the blocking plate 22, so as to facilitate the telescopic ventilation plate 21 or the blocking plate 22 to drive it to move horizontally. Through the sliding and interlacing between the guide rod 231 and the telescopic ventilation plate 21, when the blocking plate 22 or the telescopic ventilation plate 21 moves, it will not affect the stacking state of other telescopic ventilation plates 21. Until the limit plate 232 follows the guide rod 231 to move to fit with the telescopic ventilation plate 21, it will drive the next telescopic ventilation plate 21 under the pull of the limit plate 232.

[0040] Furthermore, the position adjustment device 3 includes: a threaded rod 31, which is horizontally arranged and interlaced with the inner cavity of the ventilation hole 211; a nut seat 32, which is fixedly interlaced and installed in the middle of the sealing plate 22, and the threaded rod 31 and the nut seat 32 are threadedly interlaced; a bearing frame 33, which is rotatably connected to the two ends of the threaded rod 31, and the bearing frame 33 is installed inside the ventilation pipe 1. The wind direction of the ventilation pipe 1 is from the sealing plate 22 to the direction of the telescopic ventilation plate 21. Under the action of wind pressure, the stacked telescopic ventilation plates 21 fit more closely and have better sealing performance. Only when the threaded rod 31 rotates, the threaded interlacing between the threaded rod 31 and the nut seat 32 can make the rotation of the threaded rod 31 push the sealing plate 22 to move linearly, thereby driving the telescopic ventilation plates 21 to move horizontally one by one, and the bearing frame 33 is convenient for making the rotation of the threaded rod 31 more stable.

[0041] Furthermore, the positioning device 5 includes: a rotating rod 51, which is rotatably interlaced with the ventilation pipe 1; a fixed seat 52, which is fixedly installed on the outer wall of the ventilation pipe 1, and the rotating rod 51 is rotatably interlaced with the fixed seat 52; a rotating handle 53, which is connected to one end of the rotating rod 51; an elastic positioning component 54, which is installed at the end of the rotating handle 53, and the elastic positioning component 54 is used for interlacing positioning of the fixed seat 52, so that the rotating rod 51 can drive the threaded rod 31 to rotate, and the rotating handle 53 can provide power for the rotation of the rotating rod 51, and the position of the rotating rod 51 is fixed by the interlacing between the elastic positioning component 54 and the fixed seat 52, so that the position of the position adjustment device 3 is fixed.

[0042] Furthermore, the elastic positioning assembly 54 includes: a fixed cylinder 541, which is fixedly installed at the end of the rotating handle 53; a positioning rod 542, which is slidably arranged inside the fixed cylinder 541, and a plurality of slots are provided in a circular array on the fixed seat 52, and one end of the positioning rod 542 cooperates with the inner cavity of the slot; a sliding ring 543, which is slidably sleeved on the outside of the fixed cylinder 541, and the inner wall of the sliding ring 543 is fixedly connected with a connecting block, one end of the connecting block is connected to the positioning rod 542, and the connecting block is slidably inserted and connected with the fixed cylinder 541; a spring 544, which is connected to the other end of the positioning rod 542, and the spring 544 is installed The inner movable sleeve of the spring 544 is provided with an insertion rod inside the fixed tube 541, and the insertion rod is fixedly installed inside the fixed tube 541. The insertion rod is slidably and insertedly connected with the positioning insertion rod 542. The limiting function of the insertion rod makes the linear contraction and sliding of the positioning insertion rod 542 more stable. The sliding ring 543 is used to drive the position of the connecting block, so that the connecting block can synchronously drive the movement of the positioning insertion rod 542, thereby facilitating the control of the movement of the positioning insertion rod 542, thereby unlocking the insertion with the fixed seat 52. The compression deformation of the spring 544 facilitates the elastic support of the positioning insertion rod 542, so that the cooperation between the positioning insertion rod 542 and the card slot is more stable.

[0043] Finally, it should be noted that the above are only preferred embodiments of the present invention and are 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 duct with adjustable air volume, comprising: A ventilation pipe (1), wherein the ventilation pipe (1) is open at both ends; The invention is characterized in that: a multi-layer plugging device (2) is arranged inside the ventilation pipe (1); a position adjustment device (3) for adjusting the position of the multi-layer plugging device (2) is inserted in the middle of the multi-layer plugging device (2); a positioning device (5) is installed on the ventilation pipe (1); a reversing component (4) is connected between the position adjustment device (3) and the positioning device (5); and the multi-layer plugging device (2) comprises: A telescopic ventilation plate (21), wherein a plurality of the telescopic ventilation plates (21) are coaxially arranged side by side in a tower shape; A blocking plate (22), the blocking plate (22) and the telescopic ventilation plate (21) are coaxially arranged side by side, and the blocking plate (22) is located at the tip of the telescopic ventilation plate (21); A limiting component (23), wherein the limiting component (23) is inserted and connected to the telescopic ventilation plate (21), and the limiting component (23) is used to limit the sliding movement of adjacent telescopic ventilation plates (21).

2. The air duct with adjustable air volume according to claim 1, characterized in that: The diameters of the plurality of telescopic ventilation plates (21) gradually decrease, and a ventilation hole (211) for ventilation is provided in the middle of the telescopic ventilation plate (21).

3. The air duct with adjustable air volume according to claim 1, characterized in that: The plurality of limit assemblies (23) are arranged in a ring array, the limit assemblies (23) are slidably interlaced with the threaded rod (31), and the limit assemblies (23) include: A guide rod (231), wherein the guide rod (231) is slidably and interlacedly connected with the telescopic ventilation plate (21); A limiting plate (232), wherein the limiting plate (232) is fixedly connected to one end of the guide rod (231).

4. The air duct with adjustable air volume according to claim 1, characterized in that: The position adjustment device (3) comprises: A threaded rod (31), wherein the threaded rod (31) is arranged horizontally and the threaded rod (31) is interlaced with the inner cavity of the ventilation hole (211); A nut seat (32), wherein the nut seat (32) is fixedly inserted and installed in the middle of the blocking plate (22), and the threaded rod (31) is threadedly inserted and connected with the nut seat (32); A bearing frame (33), wherein the bearing frame (33) is rotatably connected to the two ends of the threaded rod (31), and the bearing frame (33) is installed inside the ventilation pipe (1).

5. The air duct with adjustable air volume according to claim 1, characterized in that: The positioning device (5) comprises: A rotating rod (51), wherein the rotating rod (51) and the ventilation pipe (1) are arranged to rotate and intersect each other; A fixed seat (52), the fixed seat (52) is fixedly mounted on the outer wall of the ventilation pipe (1), and the rotating rod (51) is rotatably interlaced with the fixed seat (52); A rotating handle (53), wherein the rotating handle (53) is connected to one end of the rotating rod (51); An elastic positioning component (54) is installed at the end of the rotating handle (53), and the elastic positioning component (54) is used for inserting and positioning the fixing seat (52).

6. The air duct with adjustable air volume according to claim 5, characterized in that: The elastic positioning assembly (54) comprises: A fixed cylinder (541), wherein the fixed cylinder (541) is fixedly mounted on the end of the rotating handle (53); A positioning rod (542), wherein the positioning rod (542) is slidably disposed inside the fixing tube (541), and a plurality of slots are provided in an annular array on the fixing seat (52), and one end of the positioning rod (542) cooperates with the inner cavity of the slot; A sliding ring (543), the sliding ring (543) is slidably sleeved on the outside of the fixed tube (541), the inner wall of the sliding ring (543) is fixedly connected with a connecting block, one end of the connecting block is connected to the positioning plug rod (542), and the connecting block is slidably inserted and connected with the fixed tube (541); A spring (544), wherein the spring (544) is connected to the other end of the positioning rod (542), and the spring (544) is installed inside the fixing tube (541).

7. The air duct with adjustable air volume according to claim 6, characterized in that: The spring (544) is provided with an internal movable sleeve with an insertion rod, the insertion rod is fixedly installed inside the fixed cylinder (541), and the insertion rod is slidably inserted and connected with the positioning insertion rod (542).

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