Air volume regulator and air distribution box

Abstract

The utility model relates to air conditioning technical field discloses a kind of air volume regulator and air distribution box, and air volume regulator includes fixed pipe;Multiple swing leaves, are located in fixed pipe and are arranged along the circumference of fixed pipe;Each swing leaf is equipped with pivot and sliding pin, and swing leaf is pivotally connected to fixed pipe by its pivot;Rotary pipe, coaxially arranged with fixed pipe, multiple guide grooves are equipped on its pipe wall, and guide groove is slidably matched with sliding pin respectively;Driving mechanism is used to drive rotary pipe to rotate around its axis, to make guide groove push sliding pin, and then synchronously drive multiple swing leaves to swing around its pivot.The air volume regulator described above, multiple swing leaves can be driven simultaneously by rotary pipe rotation, and the overall mechanical structure is simplified;At the same time, micro-motion control to blade angle can be realized, and the air volume regulation, especially the adjustment accuracy in small air volume range is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air volume regulator and an air distribution box. Background Technology

[0002] Fresh air systems need to dynamically adjust the airflow based on changes in the indoor and outdoor environment and different user needs to maintain indoor air freshness and comfort. However, existing airflow regulators, due to deficiencies in their structural design, struggle to guarantee the stability and continuity of airflow regulation during operation. Unstable airflow regulation leads to fluctuating indoor airflow speeds, affecting not only the user experience but also potentially wasting energy and increasing system operating costs.

[0003] Traditional single-blade airflow regulators cannot achieve precise control at low airflow levels. These regulators typically adjust airflow by changing the opening of the blades. However, when adjusting to low airflow, the limited adjustment range of the blades and significant airflow disturbances make it difficult to precisely control even minute changes in airflow.

[0004] While existing multi-blade oscillating airflow regulators improve the uniformity of airflow regulation to some extent, their transmission structure is overly complex. Multi-blade oscillating airflow regulators typically require multiple oscillating blades to work together, achieving synchronous rotation through a complex transmission mechanism. This complex transmission structure not only increases the manufacturing cost of the regulator but also reduces the reliability of the system. Utility Model Content

[0005] Addressing the issues of complex structure and low airflow regulation accuracy in existing airflow regulators, this invention provides an airflow regulator that can simultaneously drive multiple blades by rotating a rotating tube, simplifying the overall mechanical structure. Furthermore, it enables micro-motion control of the blade angle, improving airflow regulation accuracy, particularly within small airflow ranges.

[0006] This utility model provides an airflow regulator, comprising:

[0007] Fixed tube;

[0008] Multiple oscillating blades are disposed inside the fixed tube and arranged circumferentially along the fixed tube; each oscillating blade is provided with a pivot and a sliding pin, and the oscillating blade is pivotally connected to the fixed tube through its pivot;

[0009] A rotating tube is coaxially arranged with the fixed tube, and its tube wall is provided with multiple guide grooves, which are respectively slidably engaged with the sliding pin;

[0010] A drive mechanism is used to drive the rotating tube to rotate around its axis, so that the guide groove pushes the sliding pin, thereby synchronously driving multiple blades to swing around its axis.

[0011] In some embodiments, the oscillating blade includes a fan-shaped oscillating blade body, and the rotating shaft includes a first rotating shaft and a second rotating shaft respectively disposed on the radially outer side and the radially inner side of the oscillating blade body;

[0012] The inner wall of the fixed tube is provided with a first support part, which pivotally supports the first rotating shaft;

[0013] The air volume regulator also includes a first connecting pipe, which is coaxially arranged and fixedly connected to the fixed pipe; a second support portion is provided on the inner wall of the first connecting pipe, and the second support portion pivotally supports the second rotating shaft.

[0014] In some embodiments, the second support portion includes a central support portion and a plurality of support ribs extending radially along the central support portion to the inner wall of the first connecting pipe; the central support portion is pivotally connected to the second rotating shaft; each of the swing blades is disposed between two adjacent support ribs.

[0015] In some embodiments, the central support portion has a second groove for receiving the second rotating shaft; the central support portion is also provided with a fixing cover, which rotatably limits the second rotating shaft to the central support portion.

[0016] In some embodiments, the blade has a closed position; in the closed position, the blade surface of the blade is parallel to the radial direction of the fixed tube; the blade can rotate continuously about its axis of rotation to a maximum opening of 90° and can stop at any angular position within the rotation range.

[0017] In some embodiments, the drive mechanism includes:

[0018] Drive motor;

[0019] The gear is connected to the output shaft of the drive motor;

[0020] A rack is disposed on the outer peripheral wall of the rotating tube and meshes with the gear.

[0021] In some embodiments, the device further includes an installation tube, which is fixedly connected to the fixing tube; the installation tube has a tube body coaxially disposed with the fixing tube and an installation portion connected to the outer peripheral wall of the tube body, and the drive motor is fixed to the installation portion.

[0022] In some embodiments, the drive mechanism further includes a manual lever that is linked to the gear.

[0023] In some embodiments, a second connecting tube is further included, which is coaxially arranged and fixedly connected to the mounting tube.

[0024] This utility model also includes an air distribution box, comprising a box body, wherein the box body is provided with at least one air outlet, and the air outlet is equipped with the aforementioned air volume regulator.

[0025] Compared with the prior art, the advantages and positive effects of this utility model are:

[0026] The aforementioned airflow regulator can simultaneously drive multiple blades via the guide groove on the rotating tube, eliminating the need for an independent drive mechanism for each blade and significantly simplifying the overall structure. At the same time, the guide groove can precisely convert the minute rotation of the tube into synchronous and equal angular changes of multiple blades, achieving precise changes in blade angles, effectively reducing transmission and cumulative errors in traditional structures, and improving the adjustment accuracy within a small airflow range. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a perspective view of the air volume regulator of this utility model;

[0029] Figure 2 This is an exploded view of the air volume regulator of this utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the air volume regulator of this utility model. The diagram shows the state where the oscillating blades are in the closed position and the air duct is closed.

[0031] Figure 4 for Figure 3 The front view;

[0032] Figure 5 This is a schematic diagram of the internal structure of the air volume regulator of this utility model. The diagram shows the air duct opening after the oscillating blades have rotated 90°.

[0033] Figure 6 for Figure 5 The front view;

[0034] Figure 7 This is an assembly drawing of the oscillating vane and rotating tube in the air volume regulator of this utility model;

[0035] Figure 8 This is a schematic diagram of the structure of the oscillating blade in the air volume regulator of this utility model;

[0036] Figure 9 This is a schematic diagram of the structure of the fixed tube, rotating tube, and oscillating blade in the air volume regulator of this utility model;

[0037] Figure 10 This is a schematic diagram of the structure of the first connecting pipe in the air volume regulator of this utility model;

[0038] Explanation of reference numerals in the attached figures:

[0039] 100 - Fixed tube; 110 - First support part; 111 - First groove;

[0040] 200 - Rotating tube; 210 - Guide groove;

[0041] 300 - Oscillating blade; 310 - Rotating shaft; 311 - First rotating shaft; 312 - Second rotating shaft; 320 - Sliding pin;

[0042] 400 - Drive mechanism; 410 - Drive motor; 420 - Gear; 430 - Rack;

[0043] 500 - First connecting pipe; 510 - Second support part; 511 - Central support part; 5111 - Second groove; 512 - Support rib; 513 - Third groove; 514 - Positioning protrusion;

[0044] 600 - Installation pipe; 610 - Pipe body; 611 - Installation part;

[0045] 700 - Second connecting pipe;

[0046] 810 - Fixed cover; 820 - Motor cover; 830 - Manual lever. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0051] Reference Figures 1-10 This is one embodiment of the airflow regulator of this utility model. It aims to solve the problems of complex structure and low airflow regulation accuracy of existing airflow regulators.

[0052] The air volume regulator includes a fixed pipe 100, a rotating pipe 200, multiple swivel blades 300, and a drive mechanism 400.

[0053] like Figure 3 and Figure 8 As shown, multiple oscillating blades 300 are evenly arranged circumferentially inside the fixed tube 100. Each oscillating blade 300 is provided with a rotating shaft 310 and a sliding pin 320, and the oscillating blade 300 is pivotally connected to the fixed tube 100 through its rotating shaft 310. The rotation axis 310 of the oscillating blade 300 is arranged radially along the fixed tube 100. The oscillating blade 300 has a closed position. In the closed position, the blade surface of the oscillating blade 300 is parallel to the radial direction of the fixed tube 100, and the oscillating blade 300 can rotate continuously around its rotating shaft 310.

[0054] The rotating tube 200 is coaxially fitted inside the fixed tube 100. Multiple guide grooves 210 are formed on the wall of the rotating tube 200, each guide groove 210 slidingly engaging with a sliding pin 320 on a single blade 300. The guide grooves 210 extend along a predetermined inclined trajectory to ensure that when the drive mechanism 400 drives the rotating tube 200 to rotate around its axis, all blades 300 oscillate synchronously and uniformly. The shape of the guide groove 210 can be a straight line at a certain angle to the axis or other specific curves.

[0055] The drive mechanism 400 is used to drive the rotating tube 200 to rotate about its axis. See also Figure 5 and Figure 6When the rotating tube 200 rotates, the side wall of its guide groove 210 pushes the sliding pin 320 of each blade 300. This causes all blades 300 to swing synchronously and uniformly around their respective axes 310, achieving precise changes in the airflow area of ​​the duct and thus regulating the air volume.

[0056] The aforementioned airflow regulator can simultaneously drive multiple blades 300 via the guide groove 210 on the rotating tube 200, eliminating the need for an independent drive mechanism 400 for each blade and significantly simplifying the overall structure. At the same time, the guide groove 210 can precisely convert the minute rotation of the tube 610 into synchronous and equal angular changes of multiple blades, achieving precise changes in blade angles, effectively reducing transmission and cumulative errors in traditional structures, and improving the adjustment accuracy within a small airflow range.

[0057] In some embodiments of this application, such as Figure 8 As shown, the oscillating blade 300 includes a fan-shaped oscillating blade body. The pivot 310 of the oscillating blade 300 is divided into two sections, including a first pivot 311 located on the radially outer side of the oscillating blade body and a second pivot 312 located on the radially inner side.

[0058] like Figure 9 As shown, the inner wall of the fixed tube 100 is provided with a first support part 110, such as a bearing seat, support hole or support platform, etc., for pivotally supporting the first rotating shaft 311 to form the external support structure of the swing blade 300.

[0059] like Figure 2 and Figure 10 As shown, the airflow regulator also includes a first connecting pipe 500 coaxially fixed to the fixed pipe 100. A second support portion 510 is provided on the inner wall of the first connecting pipe 500 for pivotally supporting the second rotating shaft 312, forming the internal support structure of the oscillating blade 300. One end of the first connecting pipe 500 is used to connect to the fixed pipe 100 and fix the oscillating blade 300, and the other end is used to connect to an external air duct.

[0060] The oscillating blade 300 uses an internal and external double support structure to ensure the stability and reliability of its rotation.

[0061] In some embodiments of this application, to facilitate the installation and fixing of the first rotating shaft 311, the first support portion 110 is designed as a stepped structure protruding from the fixing tube 100, and a first groove 111 for receiving the first rotating shaft 311 is provided on the stepped structure. Correspondingly, at one end of the first connecting tube 500 inserted into the fixing tube 100, a third groove 513 matching the first groove 111 is provided. During installation, the first rotating shaft 311 is placed into the first groove 111, and then the first connecting tube 500 is inserted into the fixing tube 100 accordingly, confining the first rotating shaft 311 within the first groove 111 and the third groove 513.

[0062] In order to ensure that the first connecting tube 500 is inserted into the fixed tube 100 and that the first groove 111 and the second groove 5111 can be accurately aligned, a positioning structure is provided between the first connecting tube 500 and the fixed tube 100. For example, a positioning protrusion 514 is provided on the first connecting tube 500 and a positioning groove is provided on the inner wall of the fixed tube 100.

[0063] In some embodiments of this application, such as Figure 10 As shown, to further optimize the internal support structure, the second support portion 510 specifically consists of a central support portion 511 and multiple support ribs 512. The multiple support ribs 512 extend radially from the central support portion 511 and connect to the inner wall of the first connecting pipe 500, forming a stable frame similar to wheel spokes. The central support portion 511 is used to centrally and pivotally connect the second pivot shafts 312 of all the blades 300. Simultaneously, an independent channel is formed between every two adjacent support ribs 512 to accommodate one blade 300, serving to separate and guide the airflow.

[0064] In some embodiments of this application, to facilitate the installation and fixation of the second rotating shaft 312, a second groove 5111 for receiving the second rotating shaft 312 is provided on the central support portion 511. During installation, the second rotating shaft 312 is placed into the second groove 5111 and then closed by a fixing cover 810. The fixing cover 810 reliably confines the second rotating shaft 312 within the second groove 5111 and ensures that it can rotate freely, achieving a stable and flexible pivot connection.

[0065] In some embodiments of this application, the oscillating vane 300 can rotate continuously about its axis of rotation 310 to a maximum opening of 90°, such as... Figure 5 and Figure 6 As shown. Under the precise control of the drive mechanism 400, the oscillating blade 300 can be stably hovered at any angle within the range of 0° to 90°, thereby achieving linearization and high-precision adjustment of airflow.

[0066] In some embodiments of this application, such as Figure 2 and 3 As shown, the drive mechanism 400 includes a drive motor, a gear 420, and a rack 430.

[0067] The drive motor 410 serves as the power source, and its output shaft is fixedly connected to the gear 420. The rack 430 is fixed to the outer peripheral wall of the rotating tube 200. The rack 430 meshes with the gear 420, forming a gear-rack-pick transmission. The rack 430 can be integrally formed with the rotating tube 200. The drive motor 410 rotates in either the forward or reverse direction, driving the gear 420 to rotate. The rack 430, meshing with the gear 420, then generates tangential motion, thereby driving the rotating tube 200 in either the forward or reverse direction. To simplify manufacturing, the rack 430 can be integrally formed with the rotating tube 200.

[0068] In some embodiments of this application, such as Figure 3 As shown, for ease of overall installation, the airflow regulator also includes a mounting pipe 600, which is fixedly connected to the fixed pipe 100 for fixing the drive motor. Specifically, the mounting pipe 600 has a pipe body 610 coaxially arranged with the fixed pipe 100 and a mounting part 611 connected to the outer peripheral wall of the pipe body 610, and the drive motor is fixed on the mounting part 611.

[0069] To protect the drive motor, a motor cover 820 is also provided on the mounting tube 600, which covers the outside of the drive motor.

[0070] In some embodiments of this application, such as Figure 3 The drive mechanism 400 also includes a manual lever 830 that is linked to the gear 420. The manual lever 830 allows for non-electric operation in situations such as power outages, debugging, or when fine manual adjustments are required.

[0071] In some embodiments of this application, such as Figure 2 As shown, the airflow regulator also includes a second connecting pipe 700, which is coaxially arranged and fixedly connected to the mounting pipe 600. The second connecting pipe 700 is used to connect to the air outlet of the distribution box. The second connecting pipe 700 can be fixedly connected to the mounting pipe 600 by means of clips or screws.

[0072] This utility model also includes an air distribution box, which includes a box body and one or more air outlets. Each air outlet is equipped with the aforementioned air volume regulator to achieve independent and precise control of the air volume of each branch.

[0073] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. An airflow regulator, characterized in that, include: Fixed tube; Multiple oscillating blades are disposed inside the fixed tube and arranged circumferentially along the fixed tube; each oscillating blade is provided with a pivot and a sliding pin, and the oscillating blade is pivotally connected to the fixed tube through its pivot; A rotating tube is coaxially arranged with the fixed tube, and its tube wall is provided with multiple guide grooves, which are respectively slidably engaged with the sliding pin; A drive mechanism is used to drive the rotating tube to rotate around its axis, so that the guide groove pushes the sliding pin, thereby synchronously driving multiple blades to swing around its axis.

2. The airflow regulator according to claim 1, characterized in that, The oscillating blade includes a fan-shaped oscillating blade body, and the rotating shaft includes a first rotating shaft and a second rotating shaft respectively disposed on the radially outer side and the radially inner side of the oscillating blade body; The inner wall of the fixed tube is provided with a first support part, which pivotally supports the first rotating shaft; The air volume regulator also includes a first connecting pipe, which is coaxially arranged and fixedly connected to the fixed pipe; a second support portion is provided on the inner wall of the first connecting pipe, and the second support portion pivotally supports the second rotating shaft.

3. The airflow regulator according to claim 2, characterized in that, The second support portion includes a central support portion and a plurality of support ribs extending radially along the central support portion to the inner wall of the first connecting pipe; the central support portion is pivotally connected to the second rotating shaft; each of the swing blades is disposed between two adjacent support ribs.

4. The airflow regulator according to claim 3, characterized in that, The central support portion has a second groove for receiving the second rotating shaft; the central support portion is also provided with a fixing cover, which rotatably limits the second rotating shaft to the central support portion.

5. The air volume regulator according to claim 1, characterized in that, The blade has a closed position; in the closed position, the blade surface is parallel to the radial direction of the fixed tube; the blade can rotate continuously around its axis to a maximum opening of 90° and can stop at any angle within the rotation range.

6. The airflow regulator according to claim 2, characterized in that, The drive mechanism includes: Drive motor; The gear is connected to the output shaft of the drive motor; A rack is disposed on the outer peripheral wall of the rotating tube and meshes with the gear.

7. The airflow regulator according to claim 6, characterized in that, It also includes an installation tube, which is fixedly connected to the fixing tube; the installation tube has a tube body coaxially arranged with the fixing tube and an installation part connected to the outer peripheral wall of the tube body, and the drive motor is fixed to the installation part.

8. The airflow regulator according to claim 7, characterized in that, The drive mechanism also includes a manual lever that is linked to the gear.

9. The air volume regulator according to claim 7, characterized in that, It also includes a second connecting pipe, which is coaxially arranged and fixedly connected to the mounting pipe.

10. A distribution box, comprising a box body, wherein the box body is provided with at least one air outlet, characterized in that, The air outlet is equipped with an air volume regulator as described in any one of claims 1-9.

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