Fresh air system regulating valve

Abstract

The utility model discloses a fresh air system regulating valve, which comprises a valve body, two valve plates and two regulating knobs, an air flow channel is arranged in the valve body, the two valve plates are coaxially and rotatably connected in the air flow channel of the valve body, and the on-off regulation of the air flow channel can be realized through the rotation of the valve plates; the two adjusting knobs are installed on the two valve plates correspondingly and used for rotationally adjusting the two valve plates correspondingly. First limiting planes are formed on the opposite sides of the two valve plates, the first limiting planes of the two valve plates are mutually blocked and limited, and the first limiting planes are perpendicular to the rotating axes of the valve plates. According to the utility model, the two valve plates are adopted to adjust and control the air flow channel in the adjusting valve together, so that the air flow channel can be closed and opened; the air volume of the air flow channel can be regulated and controlled by rotating the angle of the regulating valve plate; the two valve plates are combined for regulation and control, and the regulation precision degree of the regulating valve can be improved.

Description

Technical Field

[0001] The utility model relates to an air speed regulating valve, and more particularly to a regulating valve for a fresh air system. Background Art

[0002] In existing fresh air systems, pipes, connectors, and valves are required to connect the air inlet and outlet components to ensure proper air circulation. Fresh air systems often have multiple outlets, each installed in a different room to deliver fresh air to each. To achieve balanced airflow in all directions and ensure that airflow to each room remains within the normal range, a speed regulating valve is typically installed in the air supply duct to control the airflow.

[0003] The most common regulating valve at present is usually a single valve plate structure. Figure 4 As shown, it generally includes a valve body 1', a valve plate 2', and a rotating shaft 3'. The shape of the valve plate 2' is adapted to the shape of the valve body 1' and is installed in the valve body 1' via the rotating shaft 3'. During adjustment, the opening and closing of the valve body 1' can be adjusted by adjusting the angle of the valve plate 2'. Different angles of the valve plate 2' correspond to different degrees of opening, thereby adjusting the air intake of the speed regulating valve. Currently, the regulating valve with a single valve plate has an adjustment angle of 0°-90°, corresponding to the adjustment of the air intake from minimum to maximum. However, with only one valve plate for adjustment, it is difficult to adjust the air intake of the valve to the desired range.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a fresh air system regulating valve that can improve the accuracy of air duct regulation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fresh air system regulating valve includes a valve body, two valve plates and two adjusting knobs. An air flow channel is arranged in the valve body. The two valve plates are coaxially rotatably connected to the air flow channel of the valve body. The air flow channel can be regulated on and off by rotating the valve plates. The two adjusting knobs are respectively installed on the two valve plates for rotating and adjusting the two valve plates respectively. A first limiting plane is formed on the opposite side of the two valve plates. The first limiting planes of the two valve plates block and limit each other, and the first limiting plane is perpendicular to the rotation axis of the valve plates.

[0008] This embodiment is further configured such that the valve plate has a semicircular structure.

[0009] This embodiment is further configured such that the two valve plates are respectively a first valve plate and a second valve plate, the first limiting plane of the first valve plate is fixedly connected to a rotating shaft portion, the first limiting plane of the second valve plate is provided with an axial hole portion, and the rotating shaft portion is rotatably connected in the axial hole portion.

[0010] This embodiment is further configured such that the rotating shaft portion and the shaft hole portion are coaxial with the rotation axis of the valve plate.

[0011] This embodiment is further configured such that a second limiting plane is formed on the back side of each valve plate, and the second limiting plane is parallel to the first limiting plane; two third limiting planes are formed on the inner wall of the valve body, and the two third limiting planes are respectively offset against the second limiting planes of the two valve plates to achieve limitation.

[0012] This embodiment is further configured such that the back-facing sides of the two valve plates are plugged into the two adjusting knobs respectively, and the plugged valve plates and adjusting knobs can rotate synchronously.

[0013] This embodiment is further configured such that a connecting hole is opened on the back side of the two valve plates, the adjusting knob is fixedly connected to a connecting portion, the connecting portion is inserted into the connecting hole, and the connecting hole and the connecting portion are provided with a flat structure that cooperates with each other.

[0014] This embodiment is further configured such that part of the adjusting knob is located outside the valve body, the adjusting knob is fixedly connected to a rotating portion, a through hole is opened on the side wall of the valve body, and the rotating portion is rotatably connected to the through hole.

[0015] This embodiment is further configured such that the outside of the valve body is fixedly connected to two annular protrusions, and the two adjusting knobs are respectively located on the inner periphery of the two annular protrusions; the inner periphery of each annular protrusion is formed with a plurality of limiting teeth distributed in an annular array, and the adjusting knob is fixedly connected with an indicating protrusion, and the indicating protrusion forms a limiting tip, and the limiting tip can be embedded between the two limiting teeth.

[0016] This embodiment is further configured such that two indicating protrusions are fixedly connected to both sides of the regulating knob, and the directions of the two indicating protrusions correspond to the positions of the valve plate.

[0017] In summary, the present invention has the following beneficial effects:

[0018] By using two valve plates to jointly regulate and control the air flow path within the control valve, the air flow path can be closed and opened. The air volume of the air flow path can be adjusted by rotating the valve plates. Furthermore, when one valve plate is rotated for adjustment, its control range is only half of the air flow path. The combined control of the two valve plates can improve the precision of the control valve's adjustment.

[0019] During the adjustment process, the first valve plate can be rotated and adjusted first. The first valve plate can rotate freely 360°. During the rotation adjustment process, the maximum range that the first valve plate can open is approximately half of the air flow channel; after the first valve plate is fully opened, the second valve plate can be rotated and adjusted, and the second valve plate can adjust the other half of the air flow channel. The two valve plates cooperate with each other, thereby improving the adjustment fineness of the regulating valve and more accurately adjusting the opening degree of the air flow channel.

[0020] The two valve plates are roughly semicircular in structure and are positioned between them by a first limiting plane, which can keep the relative position of the two valve plates stable. In addition, the first limiting plane is perpendicular to the axis of rotation, so there is no rotational interference between the two valve plates, which enables the two valve plates to be adjusted at any angle, thereby improving the adjustment flexibility of the entire regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a fresh air system regulating valve in this embodiment;

[0022] Figure 2 This is a three-dimensional cross-sectional view of a fresh air system regulating valve in this embodiment;

[0023] Figure 3 This is an exploded view of a fresh air system regulating valve in this embodiment;

[0024] Figure 4 It is a structural diagram of a regulating valve in the prior art.

[0025] Reference numerals: valve body 1; third limiting plane 11; through hole 12; valve plate 2; first valve plate 201; second valve plate 202; shaft portion 21; second limiting plane 22; connecting hole 23; rotating shaft portion 24; shaft hole portion 25; first limiting plane 26; air flow channel 3; adjusting knob 4; indicating protrusion 41; limiting tip 411; rotating portion 42; connecting portion 43; fourth limiting plane 44; annular protrusion 5; limiting tooth 51;

[0026] Valve body 1', valve plate 2'; rotating shaft 3'. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] This embodiment discloses a regulating valve for a fresh air system, through which the air volume in the air duct of the fresh air system can be adjusted. By adjusting the regulating valves in each air duct, the air volume in each room can be relatively balanced, thereby realizing air volume control of the fresh air system.

[0029] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the fresh air system regulating valve includes a valve body 1, two valve plates 2, and two adjusting knobs 4. The valve body 1 is a cylindrical structure with two ends extending through the interior to form an air flow channel 3. The two valve plates 2 are coaxially connected to the air flow channel 3 of the valve body 1. The two valve plates 2 are controlled by two adjusting knobs 4, respectively, to adjust the relative angle between the valve plates 2 and the valve body 1, adjust the opening and closing of the air flow channel 3, and control the air intake volume.

[0030] The shape of the two valve plates 2 is roughly semicircular. When the two valve plates 2 are parallel to each other and rotated to an angle perpendicular to the air flow channel 3, the two valve plates 2 can cut off the air flow channel 3 of the valve body 1. At this time, the opening degree of the air flow channel 3 is the smallest, close to sealing. For details, please refer to Figure 1 shown.

[0031] By rotating and adjusting the two valve plates 2, the valve plates 2 will be tilted with the air flow channel 3 in the valve body 1, which can partially open the air flow channel 3, and the two valve plates 2 can be adjusted separately. For details, please refer to Figure 2 shown.

[0032] When the two valve plates 2 are parallel to each other and rotated to an angle parallel to the air flow channel 3, the two valve plates 2 are opened to the maximum extent. Figure 3 The angle position of valve plate 2.

[0033] In this embodiment, two valve plates 2 jointly regulate the on-off of the air flow channel 3. When a single valve plate 2 is adjusted, half of the flow channel in the air flow channel 3 can be regulated, and the degree of fineness of the air intake regulation can be achieved.

[0034] In a traditional single-valve plate regulating valve, although the valve plate can be rotated 360° for adjustment, the effective adjustment angle of the valve plate is 0°-90°. Within the range of 90°, the air flow path of the corresponding regulating valve ranges from 0% to 100%. When the valve plate is adjusted within the range of 90°-180°, the flow path of the air flow path will be reduced again. After exceeding 180°, the regulating function of the valve plate is repeated.

[0035] During the adjustment process of the regulating valve in this embodiment, the first valve plate 201 can be rotated and adjusted first, with an adjustment range of 0°-90°. Within the 90° range, the corresponding air flow channel 3 ranges from 0% to 50%. After the first valve plate 201 is fully opened, the second valve plate 202 is rotated and adjusted. When the second valve plate 202 is adjusted within the 0°-90° range, the air flow channel 3 will correspond to a range of 50%-100%. In this embodiment, the total angle of the two valve plates 2 corresponding to the adjustment range of 0%-100% of the air flow channel 3 is 180°, thereby improving the adjustment precision of the regulating valve and more accurately adjusting the opening degree of the air flow channel 3.

[0036] In this embodiment, first limiting planes 26 are formed on opposite sides of the two valve plates 2. The first limiting planes 26 of the two valve plates 2 block and limit each other, and the first limiting planes 26 are perpendicular to the rotation axis of the valve plates 2. A rotation connection structure is installed at the position of the two first limiting planes 26, so that the two valve plates 2 can maintain stable coaxial rotation.

[0037] Reference Figure 3 As shown, the two valve plates 2 are a first valve plate 201 and a second valve plate 202. A rotational axis 24 is fixedly connected to the first limiting surface 26 of the first valve plate 201, while an axial hole 25 is defined in the first limiting surface 26 of the second valve plate 202. The rotational axis 24 and the axial hole 25 are coaxial with the rotation axis of the valve plates 2. During installation, the rotational axis 24 is inserted into the axial hole 25, and the rotational axis 24 and the axial hole 25 rotate in alignment with each other, maintaining the structural stability of the two valve plates 2.

[0038] Furthermore, a second limiting plane 22 is formed on the opposite sides of the two valve plates 2, and the second limiting plane 22 is parallel to the first limiting plane 26. Two third limiting planes 11 are formed on the inner wall of the valve body 1. The two third limiting planes 11 respectively abut against the second limiting planes 22 of the two valve plates 2 to achieve position limiting. Within the valve body 1, the two valve plates 2 can be limited by the third limiting planes 11 in the axial direction of rotation, maintaining the assembly stability of the two valve plates 2.

[0039] In addition, in the radial direction of rotation of the valve plate 2 , position limiting is achieved through the cooperation between the adjusting knob 4 and the valve body 1 .

[0040] Reference Figure 3As shown, the two valve plates 2 are connected to two adjusting knobs 4 on their opposite sides, allowing the connected valve plates 2 to rotate synchronously. Specifically, the two valve plates 2 have connecting holes 23 formed on their opposite sides. The adjusting knobs 4 are fixedly connected to a connecting portion 43, which is inserted into the connecting holes 23. The connecting holes 23 and the connecting portions 43 have a mutually matching flat structure. The cross-sections of the connecting holes 23 and the connecting portions 43 can be hexagonal or other similar structures, as long as they can achieve synchronous rotation after being connected.

[0041] A protruding shaft portion 24 is formed in the middle of the valve plate 2 . The shaft portion 24 is thicker than other positions of the valve plate 2 , making it easier to open corresponding holes and increasing the overall strength of the valve plate 2 .

[0042] The adjusting knob 4 partially extends into the valve body 1 and connects to the valve plate 2, while partially extends outside the valve body 1 to allow for rotational adjustment. Specifically, through holes 12 are provided on both sides of the valve body 1. The positions of the two through holes 12 correspond to the positions of the adjusting knobs 4, allowing for the installation of the two adjusting knobs 4.

[0043] The adjusting knob 4 is fixedly connected to a rotating portion 42. The rotating portion 42, the connecting portion 43 and the main body of the adjusting knob 4 are integrally formed. The rotating portion 42 and the through hole 12 of the valve body 1 are mutually adapted and the rotating portion 42 is embedded in the through hole 12 to form a rotating connection structure.

[0044] Two annular projections 5 are fixedly connected to the exterior of the valve body 1, and are roughly coaxial with the through-hole 12. Two adjusting knobs 4 are located on the inner circumferences of the two annular projections 5. A fourth limiting plane 44 is formed on the exterior of the valve body 1, corresponding to the inner circumferences of the annular projections 5. This fourth limiting plane 44 is also parallel to the third limiting plane 11. Two indicator protrusions 41 are fixedly connected to either side of the adjusting knob 4. The indicator protrusions 41 block the fourth limiting plane 44, allowing the adjusting knob 4 to be positioned.

[0045] The directions of the two indicating protrusions 41 correspond to the position of the valve plate 2. By observing the positions of the two indicating protrusions 41 outside the valve body 1, the adjustment position of the valve plate 2 can be judged, which facilitates the adjustment and control of the position of the valve plate 2.

[0046] In order to maintain the adjustment position stability of the adjustment knob 4, a damping structure can be set between the inner periphery of the annular protrusion 5 and the adjustment knob 4, which can keep the adjustment knob 4 stable when stationary to avoid vibration deflection, and can be flexibly rotated and adjusted when adjusted.

[0047] Specifically, a plurality of limiting teeth 51 distributed in an annular array are formed on the inner circumference of each annular protrusion 5, and an indicating protrusion 41 is fixedly connected to the adjusting knob 4, which forms a limiting tip 411. The limiting tip 411 and the limiting teeth 51 are adapted to each other, and the limiting tip 411 can be embedded between two limiting teeth 51, thereby maintaining the position of the adjusting knob 4 stable. During adjustment, by forcefully rotating the adjusting knob 4, the limiting tip 411 and the limiting teeth 51 can produce a slight elastic deformation, thereby allowing the limiting tip 411 to move out of the current position between the two limiting teeth 51, thereby achieving rotational adjustment and forming an adjustment damping effect during the adjustment process.

[0048] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fresh air system regulating valve, characterized in that: The invention comprises a valve body (1), two valve plates (2) and two adjusting knobs (4); an air flow channel (3) is provided in the valve body (1); the two valve plates (2) are coaxially rotatably connected to the air flow channel (3) of the valve body (1); the air flow channel (3) can be regulated on and off by rotating the valve plates (2); the two adjusting knobs (4) are respectively mounted on the two valve plates (2) and are used to rotate and adjust the two valve plates (2) respectively; a first limiting plane (26) is formed on one side opposite to the other of the two valve plates (2); the first limiting planes (26) of the two valve plates (2) block and limit each other, and the first limiting plane (26) is perpendicular to the rotation axis of the valve plates (2).

2. The fresh air system regulating valve according to claim 1, characterized in that: The valve plate (2) has a semicircular structure.

3. The fresh air system regulating valve according to claim 1, characterized in that: The two valve plates (2) are respectively a first valve plate (201) and a second valve plate (202); the first limiting plane (26) of the first valve plate (201) is fixedly connected to a rotating shaft portion (24); the first limiting plane (26) of the second valve plate (202) is provided with an axial hole portion (25); the rotating shaft portion (24) is rotatably connected in the axial hole portion (25).

4. The fresh air system regulating valve according to claim 3, characterized in that: The rotating shaft portion (24) and the shaft hole portion (25) are both coaxial with the rotating axis of the valve plate (2).

5. The fresh air system regulating valve according to claim 4, characterized in that: A second limiting plane (22) is formed on the back side of the two valve plates (2), and the second limiting plane (22) is parallel to the first limiting plane (26); the inner wall of the valve body (1) is formed with two third limiting planes (11), and the two third limiting planes (11) are respectively offset against the second limiting planes (22) of the two valve plates (2) to achieve limiting.

6. The fresh air system regulating valve according to claim 1, characterized in that: The back sides of the two valve plates (2) are respectively plugged into the two regulating knobs (4), and the mutually plugged valve plates (2) and regulating knobs (4) can rotate synchronously.

7. The fresh air system regulating valve according to claim 6, characterized in that: A connecting hole (23) is provided on the back side of the two valve plates (2); the regulating knob (4) is fixedly connected with a connecting portion (43); the connecting portion (43) is inserted into the connecting hole (23); and the connecting hole (23) and the connecting portion (43) are provided with a mutually matching flat structure.

8. The fresh air system regulating valve according to claim 1, characterized in that: Part of the regulating knob (4) is located outside the valve body (1), the regulating knob (4) is fixedly connected to a rotating portion (42), a through hole (12) is opened on the side wall of the valve body (1), and the rotating portion (42) is rotatably connected to the through hole (12).

9. The fresh air system regulating valve according to claim 1, characterized in that: The exterior of the valve body (1) is fixedly connected to two annular protrusions (5), and two adjusting knobs (4) are respectively located on the inner peripheries of the two annular protrusions (5); the inner peripheries of the two annular protrusions (5) are formed with a plurality of limiting teeth (51) distributed in an annular array, and the adjusting knob (4) is fixedly connected to an indicating protrusion (41), and the indicating protrusion (41) forms a limiting tip (411), and the limiting tip (411) can be embedded between the two limiting teeth (51).

10. The fresh air system regulating valve according to claim 9, characterized in that: Two indicating protrusions (41) are fixedly connected to both sides of the regulating knob (4), and the directions of the two indicating protrusions (41) correspond to the positions of the valve plate (2).

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