Ventilation valve of heating ventilation air conditioner

Abstract

The utility model belongs to the technical field of heating ventilation air conditioners, and particularly relates to a heating ventilation air conditioner ventilation valve which comprises a main ventilation pipe, first rectangular connecting flanges are arranged at the two ends of the main ventilation pipe, and the heating ventilation air conditioner ventilation valve further comprises spoilers which are distributed at equal intervals and rotationally installed in the main ventilation pipe. The driving mechanism is connected to the spoiler in a drivable mode and used for adjusting the inclination angle of the spoiler; the dustproof net is installed in the main ventilation pipe in a drawing mode, and a disassembly and assembly opening allowing the dustproof net to penetrate through is machined in the outer wall of the main ventilation pipe; according to the utility model, the dustproof net is installed in a pull-out manner, so that the dustproof net can be conveniently installed and detached whether the main ventilation pipe is independently used or connected with other ventilation pipelines for use, the dustproof net can be conveniently cleaned, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of heating, ventilation and air conditioning technology, and specifically relates to a heating, ventilation and air conditioning ventilation valve. Background Technology

[0002] Heating, ventilation and air conditioning (HVAC) is an air conditioner with heating, ventilation and air conditioning functions. The ventilation valve of HVAC is a valve installed in the ventilation duct to control the opening and closing of the ventilation duct and to control the size of the ventilation opening inside the valve.

[0003] In actual use, dust is carried along during ventilation. After a long period of use, the dust can easily stick to the inner wall of the ventilation valve, affecting normal use. Therefore, in the existing technology, a dustproof screen is usually installed inside the ventilation valve to prevent dust.

[0004] For example, in the prior art, Chinese utility model patent with authorization announcement number CN221825540U discloses "a kind of HVAC ventilation valve", which includes a ventilation pipe, a motor frame fixedly connected inside the ventilation pipe, a motor fixedly connected on the motor frame, a rotating shaft fixedly connected to the output end of the motor, a fixing block fixedly connected to the other end of the rotating shaft passing through the motor frame, a number of connecting blocks evenly distributed around the fixing block, the connecting blocks being snapped into the mounting block by a snap-fit ​​component, and a fan blade fixedly connected to the mounting block; a filter screen is provided on one side of the ventilation pipe.

[0005] Although existing HVAC ventilation valves, including those mentioned above, are equipped with dustproof nets for dust prevention and are easy to install and remove, in actual use, the ventilation valves are sometimes connected to other ventilation ducts. In this case, if the dustproof net is to be removed, the other ventilation ducts must be removed first, which is quite troublesome.

[0006] To solve the above problems, this utility model proposes a heating, ventilation and air conditioning ventilation valve. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a heating, ventilation and air conditioning (HVAC) ventilation valve that is convenient to use and easy to clean.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a heating, ventilation, and air conditioning (HVAC) ventilation valve, comprising a main ventilation pipe, with a rectangular connecting flange at both ends of the main ventilation pipe, and further comprising:

[0009] A plurality of the aforementioned spoilers are equally spaced and rotatably installed inside the main ventilation duct;

[0010] A drive mechanism, which is drivably connected to the spoiler, is used to adjust the tilt angle of the spoiler;

[0011] A dustproof net is installed inside the main ventilation duct by a pull-out method, and the outer wall of the main ventilation duct has a disassembly and assembly port for the dustproof net to pass through.

[0012] As a preferred technical solution of this utility model, it also includes:

[0013] A limiting plate is fixed to one end of the dustproof net, and positioning holes are machined on the limiting plate;

[0014] A threaded post, which is fixed to the outer wall of the main ventilation pipe and penetrates the positioning hole;

[0015] A locking nut is installed on the protruding end of the threaded post by means of threaded engagement.

[0016] As a preferred technical solution of this utility model, it also includes:

[0017] The U-shaped insert frame is fixed inside the main ventilation duct at the position corresponding to the disassembly port, and has a slot inside the U-shaped insert frame for embedding the dustproof mesh.

[0018] As a preferred technical solution of this utility model, it also includes:

[0019] A rubber sealing ring is bonded and fixed to the bottom surface of the limiting plate.

[0020] As a preferred embodiment of this utility model, the driving mechanism includes:

[0021] A fixed shaft is fixed to the end of the spoiler, and the fixed shaft passes through the main ventilation pipe to form a rotating structure;

[0022] Gear, the gear being fixed to the fixed shaft;

[0023] A rack that meshes with the gear;

[0024] A connecting block, which is fixed to the outer wall of the rack;

[0025] A fixing plate, which is fixed to the outer wall of the main ventilation duct;

[0026] An electric push rod is fixed to the fixed plate, and the piston rod of the electric push rod passes through the fixed plate and is fixedly connected to the connecting block.

[0027] As a preferred embodiment of this utility model, the driving mechanism further includes:

[0028] Two guide posts are symmetrically fixed to the outer wall of the connecting block, and the guide posts penetrate the fixing plate.

[0029] As a preferred embodiment of this utility model, the driving mechanism further includes:

[0030] A guide sleeve is fixed to the outer wall of the main ventilation pipe, and the rack passes through the guide sleeve.

[0031] As a preferred technical solution of this utility model, it also includes:

[0032] The adapter pipe has a No. 2 rectangular connecting flange fixed at one end and bolted to the No. 1 rectangular connecting flange, and a circular connecting flange fixed at the other end.

[0033] Compared with the prior art, the beneficial effects of this utility model are:

[0034] In this invention, the dustproof net is a pull-out type, which makes it convenient to install and remove the dustproof net whether it is used independently on the main ventilation pipe or connected to other ventilation pipes. This facilitates the cleaning of the dustproof net and reduces the difficulty of cleaning.

[0035] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0039] Figure 3 This utility model Figure 1 A magnified schematic diagram of the drive mechanism in the diagram;

[0040] Figure 4 This is a schematic diagram of the isometric structure of this utility model.

[0041] In the diagram: 1. Main ventilation duct; 11. No. 1 rectangular connecting flange; 12. Disassembly port; 13. Threaded post; 2. Baffle plate; 3. Drive mechanism; 31. Fixed shaft; 32. Gear; 33. Rack; 34. Connecting block; 35. Fixing plate; 36. Electric push rod; 37. Guide post; 38. Guide sleeve; 4. Dustproof net; 41. Limiting plate; 411. Positioning hole; 5. U-shaped insert frame; 51. Slot; 6. Locking nut; 7. Rubber sealing ring; 8. Adapter pipe; 81. No. 2 rectangular connecting flange; 82. Circular connecting flange. Detailed Implementation

[0042] 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.

[0043] Please see Figures 1-4 The present invention provides the following technical solution: a heating, ventilation and air conditioning ventilation valve, including a main ventilation pipe 1, with a rectangular connecting flange 11 at both ends of the main ventilation pipe 1, and also including: a baffle plate 2, a drive mechanism 3 and a dustproof net 4.

[0044] Furthermore, by Figure 1 and Figure 2 As shown in this embodiment, multiple baffles 2 are evenly spaced and rotatably installed inside the main ventilation duct 1. The drive mechanism 3 is drivably connected to the baffles 2 to adjust the tilt angle of the baffles 2. The dustproof net 4 is installed inside the main ventilation duct 1 by a pull-out method, and a disassembly port 12 for the dustproof net 4 to pass through is processed on the outer wall of the main ventilation duct 1. With the above scheme, when in use, the dustproof net 4 passes through the disassembly port 12 and is installed inside the main ventilation duct 1 by a pull-out method. The dustproof net 4 prevents external dust from entering the main ventilation duct 1. Because the dustproof net 4 is installed by a pull-out method, it is convenient to install and remove the dustproof net 4 whether the main ventilation duct 1 is used independently or connected to other ventilation ducts. This facilitates the cleaning of the dustproof net 4 and reduces the difficulty of cleaning. By driving the baffles 2 to flip through the drive mechanism 3 and adjusting the tilt angle of the baffles 2, the opening and closing of the main ventilation duct 1 and the amount of ventilation can be controlled.

[0045] Optionally, by Figure 1 and Figure 2As shown, this embodiment also includes: a limiting plate 41, a threaded post 13, and a locking nut 6. The limiting plate 41 is fixed to one end of the dustproof net 4, and a positioning hole 411 is machined on the limiting plate 41. The threaded post 13 is fixed to the outer wall of the main ventilation pipe 1 and passes through the positioning hole 411. The locking nut 6 is installed on the protruding end of the threaded post 13 by threaded engagement. With the above scheme, when in use, the dustproof net 4 passes through the disassembly port 12 and is installed in the main ventilation pipe 1 by pulling. At this time, the threaded post 13 passes through the positioning hole 411. Then, the locking nut 6 is tightened on the protruding end of the threaded post 13 to lock the dustproof net 4, ensuring the stability of the dustproof net 4 installation. After unscrewing the locking nut 6, the dustproof net 4 can be pulled out, which is easy to disassemble and clean.

[0046] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes: a U-shaped insert frame 5, which is fixed inside the main ventilation pipe 1 at the position corresponding to the disassembly port 12, and has a slot 51 for embedding the dustproof net 4 inside the U-shaped insert frame 5. After adopting the above solution, when in use, the installation position of the dustproof net 4 is positioned by the U-shaped insert frame 5, and the stability of the dustproof net 4 installation is further improved.

[0047] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes a rubber sealing ring 7, which is bonded and fixed to the bottom surface of the limiting plate 41. With the above solution, when the dustproof net 4 is installed, the rubber sealing ring 7 shrinks, which improves the sealing performance of the dustproof net 4.

[0048] Optionally, by Figure 1 and Figure 3 As shown, in this embodiment, the drive mechanism 3 includes: a fixed shaft 31, a gear 32, a rack 33, a connecting block 34, a fixed plate 35, and an electric push rod 36. The fixed shaft 31 is fixed to the end of the spoiler 2 and passes through the main ventilation pipe 1 to form a rotating structure. The gear 32 is fixed on the fixed shaft 31, and the rack 33 meshes with the gear 32. The connecting block 34 is fixed to the outer wall of the rack 33, the fixed plate 35 is fixed to the outer wall of the main ventilation pipe 1, and the electric push rod 36 is fixed on the fixed plate 35. The piston rod of the electric push rod 36 passes through the fixed plate 35 and is fixedly connected to the connecting block 34. With the above scheme, when in use, the electric push rod 36 is started, and the rack 33 is driven to move through the telescopic rod of the electric push rod 36. Under the meshing action, the rack 33 drives the gear 32 to rotate, and the gear 32 drives the spoiler 2 to rotate through the fixed shaft 31, adjusting the tilt angle of the spoiler 2.

[0049] Preferably, by Figure 1 and Figure 3As shown in this embodiment, the drive mechanism 3 further includes: guide posts 37. Two guide posts 37 are symmetrically fixed to the outer wall of the connecting block 34, and the guide posts 37 penetrate the fixing plate 35. With the above solution, when in use, the two guide posts 37 are used to guide the rack 33, which improves the stability of the rack 33.

[0050] Preferably, by Figure 1 and Figure 3 As shown in this embodiment, the drive mechanism 3 further includes a guide sleeve 38, which is fixed to the outer wall of the main ventilation pipe 1, and the rack 33 passes through the guide sleeve 38. With the above solution, the rack 33 is further guided by the guide sleeve 38 during use, which improves the stability of the rack 33.

[0051] Optionally, by Figure 1 and Figure 4 As shown, this embodiment also includes: a transition pipe 8, with a second rectangular connecting flange 81 fixed at one end and bolted to a first rectangular connecting flange 11, and a circular connecting flange 82 fixed at the other end. With the above solution, in use, the transition pipe 8 can be used to connect other ventilation pipes, which is convenient for connecting different types of ventilation pipes.

[0052] It should be noted that the electric actuator 36 is a commercially available standard device with a built-in power switch. Those skilled in the art can make conventional selections according to their needs. Its working principle is common knowledge known to those skilled in the art and has been fully disclosed in the prior art, so it will not be elaborated further in this article.

[0053] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0054] Components not described in detail in this article are existing technologies.

[0055] The working principle and usage process of this utility model: When using the ventilation valve of this utility model, the dustproof net 4 passes through the disassembly port 12 and is installed in the main ventilation pipe 1 by a pull-out method. The dustproof net 4 prevents external dust from entering the main ventilation pipe 1. Because the dustproof net 4 is installed by a pull-out method, it is convenient to install and disassemble the dustproof net 4 whether the main ventilation pipe 1 is used independently or connected to other ventilation pipes, which is conducive to cleaning the dustproof net 4 and reduces the difficulty of cleaning.

[0056] In another aspect of this utility model, the electric push rod 36 is activated, and the rack 33 is driven to move through the telescopic rod of the electric push rod 36. Under the meshing action, the rack 33 drives the gear 32 to rotate. The gear 32 drives the spoiler 2 to rotate through the fixed shaft 31. By adjusting the tilt angle of the spoiler 2, the opening and closing of the main ventilation pipe 1 and the amount of ventilation can be controlled.

[0057] This utility model uses a connecting pipe 8 to connect to other ventilation pipes. The connecting pipe 8 is fixed by bolts, which facilitates installation, use, disassembly and replacement. In addition, the flanges at both ends of the connecting pipe 8 are different, which makes it convenient to connect different types of ventilation pipes.

[0058] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heating, ventilation, and air conditioning (HVAC) ventilation valve, comprising a main ventilation pipe (1), wherein a rectangular connecting flange (11) is provided at both ends of the main ventilation pipe (1), characterized in that, Also includes: A spoiler (2), multiple spoilers (2) are equally spaced and rotatably installed inside the main ventilation pipe (1); A drive mechanism (3) is drivably connected to the spoiler (2) for adjusting the tilt angle of the spoiler (2); Dustproof net (4) is installed in the main ventilation pipe (1) by a pull-out method, and the outer wall of the main ventilation pipe (1) is processed with a disassembly and assembly port (12) for the dustproof net (4) to pass through.

2. The HVAC ventilation valve according to claim 1, characterized in that: Also includes: A limiting plate (41) is fixed to one end of the dustproof net (4), and a positioning hole (411) is machined on the limiting plate (41); A threaded post (13) is fixed to the outer wall of the main ventilation pipe (1) and passes through the positioning hole (411); A locking nut (6) is installed on the protruding end of the threaded post (13) by means of thread engagement.

3. The HVAC ventilation valve according to claim 1, characterized in that: Also includes: The U-shaped insert (5) is fixed inside the main ventilation pipe (1) at the position corresponding to the disassembly port (12), and has a slot (51) for the dustproof net (4) to be embedded inside the U-shaped insert (5).

4. A heating, ventilation, and air conditioning (HVAC) ventilation valve according to claim 2, characterized in that: Also includes: A rubber sealing ring (7) is bonded and fixed to the bottom surface of the limiting plate (41).

5. A heating, ventilation, and air conditioning (HVAC) ventilation valve according to claim 1, characterized in that: The drive mechanism (3) includes: A fixed shaft (31) is fixed to the end of the spoiler (2) and the fixed shaft (31) passes through the main ventilation pipe (1) to form a rotating structure; Gear (32), said gear (32) is fixed on the fixed shaft (31); A rack (33) meshes with the gear (32); A connecting block (34) is fixed to the outer wall of the rack (33); A fixing plate (35) is fixed to the outer wall of the main ventilation pipe (1); An electric push rod (36) is fixed on the fixed plate (35), and the piston rod of the electric push rod (36) passes through the fixed plate (35) and is fixedly connected to the connecting block (34).

6. A heating, ventilation, and air conditioning (HVAC) ventilator according to claim 5, characterized in that: The drive mechanism (3) further includes: Guide posts (37), two guide posts (37) are symmetrically fixed to the outer wall of the connecting block (34), and the guide posts (37) penetrate the fixing plate (35).

7. A heating, ventilation, and air conditioning (HVAC) ventilation valve according to claim 5, characterized in that: The drive mechanism (3) further includes: Guide sleeve (38) is fixed to the outer wall of the main ventilation pipe (1), and the rack (33) passes through the guide sleeve (38).

8. A heating, ventilation, and air conditioning (HVAC) ventilation valve according to claim 1, characterized in that: Also includes: The adapter pipe (8) has a second rectangular connecting flange (81) fixed at one end and bolted to the first rectangular connecting flange (11), and a circular connecting flange (82) fixed at the other end.

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