Air inlet structure of ventilator

Abstract

The utility model relates to the technical field of ventilators, in particular to an air inlet structure of a ventilator, which comprises a main case and an air inlet module arranged on the main case, the side wall of the main case is provided with an air outlet communicated with an inner cavity, and the air inlet module comprises an air inlet pipeline arranged on the side wall of the main case and communicated with the inner cavity of the main case; the air inlet pipeline is provided with at least two air inlet ports communicating with the inner cavity, and the air inlet pipeline is provided with blocking pieces used for controlling opening and closing of the air inlet ports. One air inlet pipeline is provided with a plurality of air inlet ports, according to the actual installation condition, when one ventilator only conducts air exchange on one room, one air inlet port is kept in a communicated state, the other air inlet ports are all closed through blocking pieces, and when one ventilator conducts air exchange on multiple rooms at the same time, the other air inlet ports are closed through blocking pieces. And the corresponding number of air inlet ports are kept in a communicating state, so that the variety of products is reduced, the applicability of the ventilator between a one-dragging-one mode and a one-dragging-multiple mode is improved, and the mold cost of the products is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of ventilators, and in particular to an air inlet structure of a ventilator. Background Art

[0002] Ventilators are widely used for ventilation in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings. Existing ventilators used in buildings include a main housing, an air inlet assembly mounted within the main housing, and an air outlet assembly mounted within the main housing. The main housing houses an impeller and motor that provide ventilation power.

[0003] Generally, depending on installation requirements, ventilators are installed in either a one-to-one or a one-to-many configuration. In the one-to-one configuration, a ventilator has one air inlet and one outlet, allowing it to ventilate only one room. In the one-to-many configuration, a ventilator has multiple air inlets and one outlet, allowing it to ventilate multiple rooms simultaneously. Currently, the product structure compatibility between the one-to-one and one-to-many configurations is low, and further improvement is needed. Utility Model Content

[0004] In order to improve the applicability of the ventilator between the one-to-one mode and the one-to-many mode, the present application provides an air intake structure of the ventilator.

[0005] The air inlet structure of a ventilator provided in this application adopts the following technical solution:

[0006] A fan air intake structure includes a main housing and an air intake module arranged on the main housing. The side wall of the main housing has an air outlet connected to an inner cavity. The air intake module includes an air intake duct arranged on the side wall of the main housing and connected to the inner cavity of the main housing. The air intake duct has at least two air intake openings connected to the inner cavity. The air intake duct is provided with a blocking member for controlling the opening and closing of the air intake openings.

[0007] By adopting the above technical solution, a plurality of air inlet vents are provided on an air inlet duct. According to the actual installation situation, when a ventilator ventilates only one room, one of the air inlet vents is kept in a connected state, and the other air inlet vents are closed by blocking parts. When a ventilator ventilates multiple rooms at the same time, a corresponding number of air inlet vents are kept in a connected state. This reduces the types of products, improves the applicability of the ventilator between the one-to-one mode and the one-to-many mode, and reduces the mold cost of the product.

[0008] Preferably, the side wall of the main housing has an air inlet connected to the inner cavity, and the air inlet module also includes a mounting plate, which is fixedly mounted on the air inlet duct and detachably connected to the main housing via threaded fasteners.

[0009] By adopting the above technical solution and adding a mounting plate, the rapid installation and disassembly of the air inlet module is facilitated, thereby improving the maintenance and assembly efficiency of the ventilator.

[0010] Preferably, the lower portion of the air inlet duct protrudes from the lower end surface of the mounting plate to form a positioning portion, and the positioning portion is inserted into the air inlet.

[0011] By adopting the above technical solution, the positioning portion is inserted into the air inlet of the side wall of the main housing, thereby achieving rapid positioning and installation between the air inlet duct and the main housing, thereby improving assembly efficiency.

[0012] Preferably, an air inlet cylinder connected to the inner cavity is fixedly penetrated through the upper part of the air inlet duct, and one end of the air inlet cylinder away from the air inlet duct is open to form an air inlet opening. The blocking member includes a cover plate for closing the air inlet opening and a mounting ring coaxially fixedly connected to the cover plate, and the mounting ring is clamped to the air inlet cylinder.

[0013] By adopting the above technical solution, the installation and removal convenience of the blocking member is improved by clamping the mounting ring to the air inlet pipe.

[0014] Preferably, a clamping ring is fixedly connected to the outer peripheral wall of the air inlet tube, and a clamping protrusion is protruded from the inner peripheral wall of the mounting ring. After the mounting ring is sleeved on the air inlet tube, the clamping protrusion abuts against the end surface of the clamping ring away from the cover plate.

[0015] Preferably, an air inlet cylinder connected to the inner cavity is fixedly penetrated through the upper part of the air inlet duct, and one end of the air inlet cylinder away from the air inlet duct is open to form an air inlet opening. The blocking member includes a cover plate for closing the air inlet opening and a mounting ring coaxially fixedly connected to the cover plate, and the mounting ring is threadedly connected to the air inlet cylinder.

[0016] By adopting the above technical solution, the mounting ring is threadedly connected to the air inlet tube, which facilitates the quick installation and removal of the blocking member, thereby facilitating the adjustment of the state of the air inlet vent and enhancing the flexibility of use.

[0017] Preferably, the outer peripheral wall of the air inlet cylinder has an external thread, and the inner peripheral wall of the mounting ring has an internal thread threadedly connected to the external thread.

[0018] Preferably, an air inlet cylinder connected to the inner cavity is fixedly penetrated through the upper part of the air inlet duct, and one end of the air inlet cylinder away from the air inlet duct is open to form an air inlet opening. The blocking member includes a cover plate for closing the air inlet opening and a mounting ring coaxially fixedly connected to the cover plate, and the mounting ring is screwed to the air inlet cylinder.

[0019] By adopting the above technical solution, the mounting ring is screwed to the air inlet pipe, which facilitates the rapid opening and closing of the air inlet opening and simplifies the operation process of the blocking piece.

[0020] Preferably, the side wall of the mounting ring or the air inlet tube is provided with a sliding protrusion, and the side wall of the air inlet tube or the mounting ring is provided with a rotary groove, the sliding protrusion is adapted to be slidably connected to the rotary groove, and the rotary groove includes a slot extending axially and a circumferential groove extending circumferentially and connected to the slot.

[0021] By adopting the above technical solution, when the mounting ring and the air inlet tube are assembled, the two are plugged into each other so that the sliding protrusion slides and connects to the slot, and then the mounting ring is rotated so that the mounting ring rotates relative to the air inlet tube, so that the sliding protrusion slides into the circumferential groove, thereby limiting the axial sliding of the mounting ring and the air inlet tube.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. An air inlet duct has multiple air inlet vents, and the opening and closing of each air inlet vent can be controlled by a blocking piece. When the ventilator only serves a single room, the blocking piece can be used to close the redundant air inlet vents, leaving one air inlet vent connected to the room. When the ventilator needs to serve multiple rooms, the corresponding air inlet vents can be opened according to actual needs, thereby improving the applicability of the ventilator in both one-to-one and one-to-multiple modes, reducing the required product variety and lowering mold costs.

[0024] 2. An additional mounting plate is added to facilitate the quick installation and removal of the air inlet module, improving the maintenance and assembly efficiency of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the air inlet structure of a ventilator in Example 1;

[0026] Figure 2 is a schematic structural diagram of the main housing in Example 1;

[0027] Figure 3 is a schematic structural diagram of the mounting plate in Example 1;

[0028] Figure 4 This is a schematic diagram of the connection structure between the mounting ring and the air inlet duct in Example 1;

[0029] Figure 5 is a structural diagram of the mounting plate and the air inlet duct in Example 2;

[0030] Figure 6 Schematic diagram of the connection structure between the mounting ring and the air inlet duct in Example 3;

[0031] Figure 7 is a schematic diagram of the connection structure between the mounting ring and the air inlet duct in Example 4;

[0032] Figure 8 It is a structural diagram of the rotary groove in Example 4.

[0033] In the figure, 1. main casing; 11. air outlet; 12. air inlet; 13. positioning hole; 2. air inlet module; 21. mounting plate; 211. positioning block; 22. air inlet duct; 221. positioning portion; 23. air inlet tube; 231. snap ring; 232. sliding protrusion; 24. air inlet vent; 3. blocking part; 31. cover plate; 32. mounting ring; 321. snap protrusion; 33. rotary groove; 331. slot; 332. circumferential groove. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-8 This application is described in further detail.

[0035] Example 1:

[0036] The embodiment of the present application discloses an air inlet structure of a ventilator, referring to Figure 1 、 Figure 2 , including a main casing 1 and an air inlet module 2 arranged in the main casing 1, and an air outlet 11 connected to the inner cavity is opened on one of the outer walls of the main casing 1.

[0037] Reference Figure 2 、 Figure 3 The top wall of the main casing 1 is provided with an air inlet 12 connected to the inner cavity. The air inlet module 2 includes an air inlet duct 22 arranged on the side wall of the main casing 1 and connected to the inner cavity of the main casing 1, and a mounting plate 21 fixedly sleeved on the lower part of the air inlet duct 22. The axis of the air inlet duct 22 and the air inlet 12 coincide. In this embodiment, the lower end surface of the mounting plate 21 is flush with the lower end surface of the air inlet duct 22. The mounting plate 21 is detachably connected to the main casing 1 by threaded fasteners. A positioning hole 13 is provided on the top wall of the main casing 1, and a positioning block 211 is protruding from the lower end surface of the mounting plate 21 and inserted into the positioning hole 13.

[0038] The air inlet duct 22 has at least two air inlet openings 24 connected to the inner cavity. An air inlet cylinder 23 connected to the inner cavity is fixedly penetrated through the upper portion of the air inlet duct 22. The end of the air inlet cylinder 23 away from the air inlet duct 22 is open to form the air inlet opening 24. In this embodiment, two air inlet cylinders 23 are provided and are symmetrically arranged along the axis of the air inlet duct 22. The axis of the air inlet cylinder 23 and the axis of the air inlet duct 22 form an acute angle. In other embodiments, three or more air inlet cylinders 23 may be provided.

[0039] Reference Figure 1 、 Figure 4The air inlet duct 22 is provided with a blocking member 3 for controlling the opening and closing of the air inlet duct 24. In this embodiment, the blocking member 3 is a plastic member, and the number of blocking members 3 is one less than the number of air inlet tubes 23. The blocking member 3 includes a cover plate 31 that closes the air inlet duct 24, and a mounting ring 32 that is coaxially fixedly connected to the cover plate 31. The mounting ring 32 is snap-fitted to the air inlet tube 23. Specifically, a snap ring 231 is fixedly connected to the outer peripheral wall of the air inlet tube 23, and a snap-fitting protrusion 321 protrudes from the inner peripheral wall of the mounting ring 32. There are multiple snap-fitting protrusions 321, which are spaced apart around the axis of the mounting ring 32. After the mounting ring 32 is sleeved on the air inlet tube 23, the snap-fitting protrusion 321 abuts the end surface of the snap ring 231 away from the cover plate 31.

[0040] The implementation principle of the air intake structure of a ventilator in an embodiment of the present application is as follows: an air intake duct 22 is provided with multiple air intake ducts 24, and the opening and closing of each air intake duct 24 can be controlled by a sealing member 3. When the ventilator only serves a single room, the mounting ring 32 on the sealing member 3 can be mounted on one of the air inlet tubes 23 to close one air intake duct 24 and retain one air intake duct 24 connected to the room; when the ventilator needs to serve multiple rooms, the corresponding air intake duct 24 can be opened according to actual needs, thereby improving the applicability of the ventilator between one-to-one mode and one-to-multiple mode, reducing the required product types, and reducing mold costs.

[0041] Example 2:

[0042] The difference from Example 1 is that, referring to Figure 5 The lower portion of the air inlet duct 22 protrudes from the lower end surface of the mounting plate 21 to form a positioning portion 221, which is inserted into the air inlet 12. The positioning portion 221 is inserted into the air inlet 12 on the side wall of the main housing 1, achieving rapid positioning and installation between the air inlet duct 22 and the main housing 1, thereby improving assembly efficiency.

[0043] Example 3:

[0044] The difference from Example 1 is that, referring to Figure 6 The mounting ring 32 is threadedly connected to the air inlet cylinder 23. Specifically, the outer peripheral wall of the air inlet cylinder 23 has an external thread, and the inner peripheral wall of the mounting ring 32 has an internal thread threadedly connected to the external thread.

[0045] Example 4:

[0046] The difference from Example 1 is that, referring to Figure 7 、 Figure 8The mounting ring 32 is screwed to the air inlet tube 23. The side wall of the mounting ring 32 or the air inlet tube 23 is provided with a sliding protrusion 232. The side wall of the air inlet tube 23 or the mounting ring 32 is provided with a rotary groove 33. The sliding protrusion 232 is adapted to be slidably connected to the rotary groove 33. The rotary groove 33 includes a slot 331 extending axially and a circumferential groove 332 extending circumferentially and connected to the slot 331.

[0047] In this embodiment, the mounting ring 32 is sleeved on the air inlet tube 23, the rotary groove 33 is defined on the inner circumferential wall of the mounting ring 32, the slot 331 has a notch extending to the lower end surface of the mounting ring 32, and the sliding protrusion 232 is integrally formed and protrudes from the outer circumferential wall of the air inlet tube 23. When the mounting ring 32 and the air inlet tube 23 are assembled, the mounting ring 32 is lowered so that the sliding protrusion 232 slides and connects to the slot 331. The mounting ring 32 is then rotated so that the mounting ring 32 rotates relative to the air inlet tube 23, causing the sliding protrusion 232 to slide into the circumferential groove 332, thereby limiting the axial sliding of the mounting ring 32 relative to the air inlet tube 23. In other embodiments, the rotary groove 33 may be defined on the outer circumferential wall of the air inlet tube 23, and the sliding protrusion 232 may be fixed to the inner circumferential wall of the mounting ring 32.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An air inlet structure of a ventilator, characterized in that: The invention comprises a main housing (1) and an air inlet module (2) arranged on the main housing (1), wherein the side wall of the main housing (1) has an air outlet (11) connected to the inner cavity, and the air inlet module (2) comprises an air inlet duct (22) arranged on the side wall of the main housing (1) and connected to the inner cavity of the main housing (1), wherein the air inlet duct (22) has at least two air inlet openings (24) connected to the inner cavity, and the air inlet duct (22) is provided with a blocking member (3) for controlling the opening and closing of the air inlet openings (24).

2. The air inlet structure of a ventilator according to claim 1, characterized in that: The side wall of the main housing (1) has an air inlet (12) connected to the inner cavity, and the air inlet module (2) also includes a mounting plate (21), which is fixedly mounted on the air inlet duct (22), and the mounting plate (21) is detachably connected to the main housing (1) via a threaded fastener.

3. The air inlet structure of the ventilator according to claim 2, characterized in that: The lower portion of the air inlet duct (22) protrudes from the lower end surface of the mounting plate (21) to form a positioning portion (221), and the positioning portion (221) is inserted into the air inlet (12).

4. The air inlet structure of a ventilator according to claim 1, characterized in that: An air inlet cylinder (23) connected to the inner cavity is fixedly provided on the upper portion of the air inlet duct (22); one end of the air inlet cylinder (23) away from the air inlet duct (22) is open to form an air inlet opening (24); the blocking member (3) includes a cover plate (31) for closing the air inlet opening (24) and a mounting ring (32) coaxially fixedly connected to the cover plate (31); the mounting ring (32) is clamped to the air inlet cylinder (23).

5. The air inlet structure of a ventilator according to claim 4, characterized in that: The outer peripheral wall of the air inlet cylinder (23) is fixedly connected with a snap ring (231), and the inner peripheral wall of the mounting ring (32) is protruded with a snap protrusion (321). After the mounting ring (32) is sleeved on the air inlet cylinder (23), the snap protrusion (321) abuts against the end surface of the snap ring (231) away from the cover plate (31).

6. The air inlet structure of a ventilator according to claim 1, characterized in that: An air inlet cylinder (23) connected to the inner cavity is fixedly provided on the upper portion of the air inlet duct (22); one end of the air inlet cylinder (23) away from the air inlet duct (22) is open to form an air inlet opening (24); the blocking member (3) includes a cover plate (31) for closing the air inlet opening (24) and a mounting ring (32) coaxially fixedly connected to the cover plate (31); the mounting ring (32) is threadedly connected to the air inlet cylinder (23).

7. The air inlet structure of a ventilator according to claim 6, characterized in that: The outer peripheral wall of the air inlet cylinder (23) has an external thread, and the inner peripheral wall of the mounting ring (32) has an internal thread threadedly connected to the external thread.

8. The air inlet structure of a ventilator according to claim 1, characterized in that: An air inlet cylinder (23) connected to the inner cavity is fixedly provided on the upper part of the air inlet duct (22), and one end of the air inlet cylinder (23) away from the air inlet duct (22) is open to form an air inlet opening (24). The blocking member (3) includes a cover plate (31) for closing the air inlet opening (24) and a mounting ring (32) coaxially fixedly connected to the cover plate (31), and the mounting ring (32) is screwed to the air inlet cylinder (23).

9. The air inlet structure of a ventilator according to claim 8, characterized in that: The side wall of the mounting ring (32) or the air inlet cylinder (23) is provided with a sliding protrusion (232), and the side wall of the air inlet cylinder (23) or the mounting ring (32) is provided with a rotary groove (33). The sliding protrusion (232) is adapted to be slidably connected to the rotary groove (33), and the rotary groove (33) includes a slot (331) extending in the axial direction and a circumferential groove (332) extending in the circumferential direction and connected to the slot (331).

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