Speed regulation type main exhaust fan

Abstract

The utility model provides a speed regulation type main exhaust fan which comprises a shell, a mounting opening is formed in the shell, a blocking piece is arranged in the mounting opening, an elastic piece is arranged at the front end of the blocking piece, a first protection piece is arranged at the front end of the blocking piece, and a ventilation piece is arranged at the front end of the first protection piece. A second protection part is arranged at the front end of the ventilation part, a detection part is arranged at the front end of the second protection part, and a dismounting assembly is arranged outside the detection part. According to the invention, through arrangement of the dismounting part, the second protection part and the ventilation part, when dismounting is needed, the dismounting part is dismounted, and then the ventilation part and the second protection part in the shell slide out in sequence and are automatically disconnected with the shell during sliding, so that rapid dismounting is realized, and the ventilation part, the first protection part and the second protection part in the shell are cleaned.

Description

Technical Field

[0001] This utility model relates to the field of exhaust fans, and more specifically, to a speed-regulating main exhaust fan. Background Technology

[0002] In industrial production environments, especially in dusty factories, automatic speed-adjustable main exhaust fans are key equipment. They can automatically adjust the exhaust efficiency according to air quality, ensuring a good working environment while saving energy and reducing consumption. However, traditional main exhaust fans are in contact with dust for a long time and need to be cleaned regularly, otherwise the efficiency of the fan will be affected. However, due to the obstruction of protective nets, wire connections and outer casing, it is difficult to disassemble and clean them.

[0003] For example, the utility model patent (application number: 201220094873.X) discloses an "automatic energy-saving exhaust fan," the description of which states that the exhaust fan includes a fan frame, a fan, and a motor. Its key design feature is that the automatic energy-saving exhaust fan is equipped with a remote control. The fan frame contains a control box, which houses a control circuit consisting of a carbon dioxide detector, a microcontroller control circuit board, and a signal receiver. This control circuit is connected to the motor. This utility model has a reasonable structural design, allows for selection of manual or automatic modes, is relatively flexible and convenient to operate, and has good energy-saving effects. It is suitable for use as an exhaust fan in various public places, or as a structural improvement of similar products. The aforementioned patent can corroborate the deficiencies of existing technologies.

[0004] Therefore, we made improvements and proposed a speed-adjustable main exhaust fan. Summary of the Invention

[0005] The purpose of this invention is to address the current problem of the main exhaust fan being difficult to disassemble and clean.

[0006] To achieve the above-mentioned objectives and improve the above-mentioned problems, this utility model provides a speed-regulating main exhaust fan, including a housing, an installation port inside the housing, a blocking member inside the installation port, an elastic member at the front end of the blocking member, a first protective member at the front end of the first protective member, a ventilation member at the front end of the ventilation member, a second protective member at the front end of the ventilation member, a detection member at the front end of the second protective member, and a disassembly assembly outside the detection member.

[0007] As a preferred technical solution of this application, the blocking member includes a retaining ring fixed inside the mounting port, the retaining ring being used to block the front end component.

[0008] As a preferred technical solution of this application, the ventilation component includes a mounting cylinder located in front of the baffle ring, the mounting cylinder being slidably connected to the interior of the mounting port, the interior of the mounting cylinder being provided with an exhaust fan, and a second conductive ring being fixedly provided at the front end of the mounting cylinder.

[0009] As a preferred technical solution of this application, the first protective component includes a first fixing ring located behind the mounting cylinder. The first fixing ring is slidably connected to the interior of the mounting port. A first protective plate is fixedly installed inside the first fixing ring, and a plurality of ventilation openings are provided on the first protective plate.

[0010] As a preferred technical solution of this application, the second protective component includes a first conductive ring located at the front end of the mounting cylinder. The first conductive ring is slidably connected to the interior of the mounting port. A second protective plate is fixedly installed inside the first conductive ring. Several ventilation holes are also opened on the second protective plate. The first conductive ring is in contact with the second conductive ring.

[0011] As a preferred technical solution of this application, the disassembly assembly includes a disassembly plate located at the front end of the housing. The disassembly plate has a connecting groove, and each of the four corners of the front end of the disassembly plate is provided with a hand-tightening bolt. The end of the hand-tightening bolt passes through the disassembly plate and is threadedly connected to the housing.

[0012] As a preferred technical solution of this application, an installation ring is fixedly provided inside the communicating groove, and the detection component includes an air quality detector fixed to the front end of the installation ring. The air quality detector is ring-shaped, and a third conductive ring is provided at the rear end of the installation ring. The third conductive ring is in contact with the first conductive ring, and the air quality detector is electrically connected to the third conductive ring.

[0013] As a preferred technical solution of this application, the elastic element includes a spring pad fixed to the front end of the retaining ring, and the spring pad is in contact with the first fixing ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the scheme of this application:

[0016] 1. By setting up a disassembly component, a second protective component, and a ventilation component, it is possible to remove the disassembly component when disassembly is required, and then slide out the ventilation component and the second protective component inside the shell in sequence. During the sliding, the connection with the shell is automatically disconnected, thereby achieving rapid disassembly and cleaning of the internal ventilation component, the first protective component, and the second protective component. This solves the problem of the main exhaust fan being difficult to disassemble and clean in the prior art.

[0017] 2. By setting up a detection element, its annular shape enables the detection of a larger range, making the detection more accurate and improving the efficiency and reliability of speed regulation. This solves the problem of insufficient detection accuracy caused by the small detection range of the detection element in the prior art. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the speed-regulating main exhaust fan provided in this application;

[0019] Figure 2 An exploded view of the speed-regulating main exhaust fan provided in this application;

[0020] Figure 3 For this Figure 2 Enlarged view of A in the middle;

[0021] Figure 4 This is an exploded view of the disassembly components and the second protective component in the speed-regulating main exhaust fan provided in this application.

[0022] The image shows:

[0023] 1. Outer shell; 201. Mounting port; 202. Retaining ring; 203. Spring washer; 301. First fixing ring; 302. First protective plate; 303. First conductive ring; 304. Second protective plate; 401. Mounting cylinder; 402. Second conductive ring; 403. Exhaust fan; 601. Removal plate; 602. Hand-tightening bolt; 701. Mounting ring; 702. Air quality detector. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1

[0029] Please refer to Figure 1 , Figure 2 and Figure 4A speed-regulating main exhaust fan includes a housing 1, which is fixed to a wall with a connection opening to the outside. The housing 1 has an installation port 201 inside, and a blocking member is provided inside the installation port 201. The front end of the blocking member has an elastic member for reinforcing the installation of the fan. The front end of the blocking member has a first protective member, the front end of the first protective member has a ventilation member, the front end of the ventilation member has a second protective member, and the front end of the second protective member has a detection member for detecting the degree of dust pollution in the indoor environment. The detection member has a disassembly assembly on its exterior.

[0030] Furthermore, such as Figure 2 As shown, the blocking component includes a retaining ring 202 fixed inside the mounting port 201. The retaining ring 202 is used to block the front end component, thereby cooperating with the disassembly plate 601 for disassembly and assembly.

[0031] Furthermore, such as Figure 2 and Figure 3 As shown, the ventilation component includes a mounting cylinder 401 located in front of the baffle ring 202. The mounting cylinder 401 is slidably connected to the interior of the mounting port 201. An exhaust fan 403 is provided inside the mounting cylinder 401. The exhaust fan 403 is used to extract dust from the room. A second conductive ring 402 is fixedly provided at the front end of the mounting cylinder 401. The exhaust fan 403 is electrically connected to the second conductive ring 402.

[0032] Furthermore, such as Figure 2 As shown, the first protective component includes a first fixing ring 301 located behind the mounting cylinder 401. The first fixing ring 301 is used to prevent external foreign objects from interfering with the exhaust fan 403. The first fixing ring 301 is slidably connected to the inside of the mounting port 201. A first protective plate 302 is fixedly installed inside the first fixing ring 301. Several ventilation openings are opened on the first protective plate 302.

[0033] Furthermore, such as Figure 1 , Figure 2 and Figure 4 As shown, the second protective component includes a first conductive ring 303 located at the front end of the mounting cylinder 401. The first conductive ring 303 is slidably connected to the interior of the mounting port 201. A second protective plate 304 is fixedly installed inside the first conductive ring 303. Compared with the complex protective cover structure, the first protective plate 302 and the second protective plate 304 are simpler. At the same time, the ventilation openings reduce the blind spots for cleaning and improve cleaning efficiency. Several ventilation openings are also provided on the second protective plate 304. The first conductive ring 303 contacts the second conductive ring 402. Through the contact between the first conductive ring 303 and the second conductive ring 402, power is transmitted to the exhaust fan 403.

[0034] Furthermore, such as Figure 1 and Figure 4As shown, the disassembly assembly includes a disassembly plate 601 located at the front end of the housing 1. The disassembly plate 601 is used to fix the components inside the mounting port 201. A connecting groove is provided on the disassembly plate 601. Hand-tightening bolts 602 are provided at the four corners of the front end of the disassembly plate 601. The ends of the hand-tightening bolts 602 pass through the disassembly plate 601 and are threadedly connected to the housing 1. The disassembly plate 601 can be disassembled or fixed by rotating the hand-tightening bolts 602 through the threads.

[0035] Example 2

[0036] The speed-regulating main exhaust fan provided in Example 1 is further optimized, specifically, as follows: Figure 4 As shown, an installation ring 701 is fixedly installed inside the connecting groove. The detection component includes an air quality detector 702 fixed to the front end of the installation ring 701. The air quality detector 702 is ring-shaped, which can detect a larger range of environment in front, thus making the detection more accurate. A third conductive ring is provided at the rear end of the installation ring 701. The third conductive ring is in contact with the first conductive ring 303. The air quality detector 702 is electrically connected to the third conductive ring.

[0037] The housing 1 contains a speed controller that controls the speed of the exhaust fan 403. The mounting port 201 contains several contacts, which are electrically connected to the speed controller via a controller. The housing 1 contains a power supply, which is electrically connected to the speed controller via a switch. The switch is located outside the housing 1. The contacts conduct electricity by contacting the first conductive ring 303, thereby receiving information from the air quality detector 702 through the controller and controlling the rotation speed of the exhaust fan 403 through the speed controller.

[0038] Example 3

[0039] The speed-regulating main exhaust fan provided in Embodiments 1 and 2 has been further optimized, such as... Figure 2 As shown, the elastic element includes a spring pad 203 fixed to the front end of the retaining ring 202. The spring pad 203 is specifically a rubber pad. The spring pad 203 is used to block the components that need to be slidably installed inside the mounting port 201 by the plate 601 that needs to be disassembled. The elastic force of the spring pad 203 makes the contact tighter, so that the contact between the second conductive ring 402, the first conductive ring 303 and the third contact point is more stable, avoiding disconnection. At the same time, it prevents the fan 403 from vibrating and making noise when it starts due to unstable connection. The spring pad 203 is in contact with the first fixing ring 301.

[0040] The usage process of the speed-regulating main exhaust fan provided by this utility model is as follows:

[0041] When the air quality detector 702 detects that the external dust pollution is relatively serious, it transmits electrical energy to the exhaust fan 403 through the speed controller and switch via the first conductive ring 303 and the mounting cylinder 401, thereby starting the exhaust fan 403 to rotate at a suitable speed and expel the dust outdoors.

[0042] When it is necessary to remove and clean the exhaust fan 403, the first protective plate 302, and the second protective plate 304, turn off the power with the control switch, turn the hand-tightening bolt 602 to remove it, thereby removing the disassembly plate 601. Then, slide out the first conductive ring 303, the mounting cylinder 401, and the first fixing ring 301 in sequence to further clean the dust on the exhaust fan 403, the first protective plate 302, and the second protective plate 304.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A speed-regulating main exhaust fan, characterized in that, Includes an outer shell (1), the inner part of which is provided with an installation port (201), the inner part of which is provided with a blocking member, the front end of which is provided with an elastic member, the front end of which is provided with a first protective member, the front end of which is provided with a ventilation member, the front end of which is provided with a second protective member, the front end of which is provided with a detection member, and the outer part of which is provided with a disassembly assembly.

2. The speed-regulating main exhaust fan according to claim 1, characterized in that, The blocking component includes a retaining ring (202) fixed inside the mounting port (201), the retaining ring (202) being used to block the front end component.

3. A speed-regulating main exhaust fan according to claim 2, characterized in that, The ventilation component includes a mounting cylinder (401) located in front of the baffle ring (202). The mounting cylinder (401) is slidably connected to the interior of the mounting port (201). An exhaust fan (403) is provided inside the mounting cylinder (401). A second conductive ring (402) is fixedly provided at the front end of the mounting cylinder (401).

4. A speed-regulating main exhaust fan according to claim 3, characterized in that, The first protective component includes a first fixing ring (301) located behind the mounting cylinder (401). The first fixing ring (301) is slidably connected to the interior of the mounting port (201). A first protective plate (302) is fixedly installed inside the first fixing ring (301). Several ventilation openings are provided on the first protective plate (302).

5. A speed-regulating main exhaust fan according to claim 4, characterized in that, The second protective component includes a first conductive ring (303) located at the front end of the mounting cylinder (401). The first conductive ring (303) is slidably connected to the interior of the mounting port (201). A second protective plate (304) is fixedly installed inside the first conductive ring (303). Several ventilation holes are also provided on the second protective plate (304). The first conductive ring (303) is in contact with the second conductive ring (402).

6. A speed-regulating main exhaust fan according to claim 5, characterized in that, The disassembly assembly includes a disassembly plate (601) located at the front end of the outer shell (1). The disassembly plate (601) has a connecting groove. Each of the four corners of the front end of the disassembly plate (601) is provided with a hand-tightening bolt (602). The end of the hand-tightening bolt (602) passes through the disassembly plate (601) and is threadedly connected to the outer shell (1).

7. A speed-regulating main exhaust fan according to claim 6, characterized in that, An installation ring (701) is fixedly provided inside the communicating groove. The detection component includes an air quality detector (702) fixed to the front end of the installation ring (701). The air quality detector (702) is ring-shaped. A third conductive ring is provided at the rear end of the installation ring (701). The third conductive ring is in contact with the first conductive ring (303). The air quality detector (702) is electrically connected to the third conductive ring.

8. A speed-regulating main exhaust fan according to claim 7, characterized in that, The elastic element includes a spring pad (203) fixed to the front end of the retaining ring (202), and the spring pad (203) is in contact with the first fixing ring (301).

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