Double-gear driving device

Abstract

The utility model discloses a double-gear driving device which comprises a machine shell and a cylindrical filter screen installed in the machine shell, the machine shell is fixedly connected with an installation assembly, the installation assembly comprises a first partition plate and a second partition plate, a gear ring is connected between the first partition plate and the second partition plate in a clamped mode, and meshing teeth are arranged on the outer wall of the gear ring. A driving motor is mounted on the second partition plate, an output shaft of the driving motor is fixedly connected with a first gear, and the first gear and the gear ring form gear transmission; the second partition plate is fixedly connected with a vertical plate, the vertical plate is fixedly connected with a supporting plate, the two ends of the filter screen are fixed to the supporting plate, and a cleaning device used for cleaning impurities on the surface of the filter screen is installed between the gear rings at the two ends of the filter screen. The gear rings arranged at the two ends of the filter screen drive the cleaning device, so that the upper and lower ends of the cleaning device between the gear rings move synchronously, and the two ends of the collecting cylinder are prevented from being staggered and clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to air filter technical field, concretely relates to a double gear drive device. BACKGROUND

[0002] Air filters play a crucial role in daily life and industrial production. Its main role is to effectively remove particles, dust, pollen, smoke, bacteria, viruses and other harmful substances in the air, thereby providing a fresher and cleaner indoor environment. For families, air filters can significantly improve air quality and reduce respiratory problems caused by air pollution, such as asthma, allergies and other symptoms, creating a healthier and more comfortable living environment for families. Especially in the season of alternation and serious air pollution, the existence of air filters has become a solid defense line to protect family health. In the field of industrial production, air filters are also indispensable. It ensures the cleanliness of the production environment, avoids product quality problems caused by air pollution, and also protects the health of production workers and reduces the incidence of occupational diseases.

[0003] In a pet air purifier, an existing structure uses a cylindrical filter screen to filter the air in the pet living environment, and the pet hair in the air is filtered and isolated on the outer surface of the filter screen. In order to clean the hair and other debris on the surface of the filter screen, the cleaning device needs to rotate around the surface of the filter screen. The prior art does not disclose a cleaning device that rotates around the filter screen, nor does it disclose a mechanism for driving the cleaning device to rotate. Because the cleaning device is attached to the surface of the filter screen, it has resistance during movement, and the cleaning device needs to be driven in balance to avoid being stuck, so the driving mechanism of the cleaning device needs to be improved to avoid the cleaning device from being stuck during movement. SUMMARY

[0004] The utility model aims at solving the above technical problem, and provides a double gear drive device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme to achieve it:

[0006] The utility model provides a double gear drive device, including casing and the cylindrical filter screen of installation in casing, casing is fixedly connected with installation component, installation component is located the both ends of filter screen, installation component includes with casing fixed connection's first baffle and second baffle, the first baffle and second baffle form installation clamping cavity between, the clamping cavity is clamped with the gear ring of installation component rotation sliding fit, the outer wall of gear ring is provided with meshing tooth, the second baffle is installed with drive motor, the output shaft of drive motor extends to installation clamping cavity and is fixedly connected with first gear, and the meshing tooth of first gear and gear ring is mutually engaged and forms gear drive, the second baffle is fixedly connected with the vertical plate of second baffle perpendicular to the side close to the center of casing, the vertical plate is fixedly connected with the supporting plate of second baffle away from the end, and the both ends of filter screen are fixed on supporting plate, and the gear ring between both ends of filter screen is installed with the cleaning device for cleaning the sundries on the surface of filter screen.

[0007] Further, the inner side of the gear ring is provided with a protruding first sliding rib, the first sliding rib is attached to the side wall of the vertical plate close to the casing; the first baffle is provided with a protruding second sliding rib, the supporting plate extends to the side of the gear ring away from the second baffle, the supporting plate is fixedly connected with a third sliding rib, the second sliding rib and the third sliding rib abut on the surface of the gear ring, and the second baffle is provided with a fourth sliding rib close to the gear ring; the first baffle is provided with a first limiting ring, and the first limiting ring is located on the outer side of the gear ring to limit the gear ring within the first limiting ring.

[0008] Further, the upper end of the first limiting ring is provided with a guide chamfer close to the gear ring.

[0009] Further, the cleaning device includes a collection cylinder, the both ends of the collection cylinder are fixed on the gear rings at both ends respectively, a cleaning brush is installed on the collection cylinder, and the cleaning brush is attached to the outer wall of the filter screen to clean the filter screen.

[0010] Further, the casing is fixedly connected with a first air duct shell and a second air duct shell, the first air duct shell is fixed at the end of the filter screen, a ventilation hole is formed in the middle of the first air duct shell, and the ventilation hole is arranged opposite to the inner hole of the filter screen, an air outlet air duct is formed between the second air duct shell and the first air duct shell, a fan is installed on the second air duct shell, the output shaft of the fan extends into the air outlet air duct and is fixedly connected with a fan blade, and the fan blade rotates to suck the air outside the filter screen into the inner cavity of the filter screen and exhausts from the air outlet air duct.

[0011] The utility model provides a kind of double gear driving device, with the following beneficial effects: by the gear ring of rotation being set in the both ends of filter screen, by the synchronous rotation of two pieces of driving motor being set in both ends, the gear ring synchronous rotation of both ends of filter screen is synchronously driven, to make the cleaning device between gear ring upper and lower ends synchronous movement, avoid the misregistration of collecting cylinder both ends to be clamped;And by the gear ring driving cleaning device being set in both ends of filter screen, make driving force be greater, can overcome the resistance generated in the process of cleaning device, guarantee that cleaning device rotates around filter screen smoothly and the sundries on the surface of filter screen is cleaned thoroughly;By the line contact of sliding rib and rotating gear ring, reduce the resistance in the rotation of gear ring, facilitate gear ring rotation. BRIEF DESCRIPTION OF DRAWINGS

[0012] The specific embodiments of the utility model are described in further detail below in combination with the drawings:

[0013] Figure 1 The structure schematic diagram of a kind of double gear driving device provided by the utility model is shown in the figure;

[0014] Figure 2 For Figure 1 The local structure schematic diagram of site A in the middle;

[0015] Figure 3 The structure schematic diagram of gear ring in a kind of double gear driving device provided by the utility model is shown in the figure;

[0016] Figure 4 The structure schematic diagram of second baffle in a kind of double gear driving device provided by the utility model is shown in the figure;

[0017] Figure 5 The structure schematic diagram of cleaning device in a kind of double gear driving device provided by the utility model is shown in the figure;

[0018] Figure 6 The schematic diagram of a kind of double gear driving device and air flow direction provided by the utility model is shown in the figure.

[0019] Mark explanation in drawing: 1, casing;2, filter screen;3, mounting assembly;31, first baffle;32, second baffle;33, vertical plate;34, supporting plate;35, second sliding rib;36, third sliding rib;37, fourth sliding rib;38, first limit ring;4, gear ring;41, first sliding rib;5, driving motor;51, first gear;6, cleaning device;61, collecting cylinder;62, cleaning brush;7, first air duct shell;8, second air duct shell;9, fan;91, fan blade. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and not to limit the utility model.

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0023] like Figures 1-5 As shown, a dual-gear drive device includes a housing 1 and a cylindrical filter screen 2 installed in the housing 1. An installation assembly 3 is fixedly connected to the housing 1, located at both ends of the filter screen 2. The installation assembly 3 includes a first partition 31 and a second partition 32 fixedly connected to the housing 1. A mounting cavity is formed between the first partition 31 and the second partition 32. A gear ring 4, which is rotatably and slidably engaged with the installation assembly 3, is engaged in the mounting cavity. The outer wall of the gear ring 4 is provided with meshing teeth. A drive motor is installed on the second partition 32. The output shaft of the drive motor 5 extends into the mounting cavity and is fixedly connected to a first gear 51. The first gear 51 meshes with the meshing teeth of the gear ring 4 to form a gear transmission. A vertical plate 33 perpendicular to the second partition 32 is fixedly connected to the side of the second partition 32 near the center of the housing 1. A support plate 34 is fixedly connected to the end of the vertical plate 33 away from the second partition 32. Both ends of the filter screen 2 are fixed on the support plate 34. A cleaning device 6 for cleaning debris on the surface of the filter screen 2 is installed between the gear rings 4 at both ends of the filter screen 2.

[0024] By adopting the above technical solution, rotating toothed rings 4 are set at both ends of the filter screen 2. The two drive motors 5 set at both ends rotate synchronously, driving the toothed rings 4 at both ends of the filter screen 2 to rotate synchronously. This allows the cleaning device 6 between the toothed rings 4 to move synchronously at both ends, avoiding misalignment and jamming at both ends of the collection cylinder 61. Furthermore, by using the toothed rings 4 at both ends of the filter screen 2 to drive the cleaning device 6, the driving force is greater, which can overcome the resistance generated during the cleaning process, ensuring that the cleaning device 6 rotates smoothly around the filter screen 2 and cleans the debris on the surface of the filter screen 2.

[0025] The inner side of the gear ring 4 is provided with a protruding first sliding rib 41 which is attached to the side wall of the vertical plate 33 close to the shell 1; the first partition plate 31 is provided with a protruding second sliding rib 35, the supporting plate 34 extends to the side of the gear ring 4 away from the second partition plate 32, the third sliding rib 36 is fixedly connected to the supporting plate 34, the second sliding rib 35 and the third sliding rib 36 abut the surface of the gear ring 4, and the fourth sliding rib 37 is arranged on the second partition plate 32 close to the side of the gear ring 4; the first limiting ring 38 is arranged on the first partition plate 31 and located on the outer side of the gear ring 4 to limit the gear ring 4 in the first limiting ring 38. The sliding rib is in linear contact with the rotating gear ring 4, thereby reducing the contact area of the gear ring 4 and its limiting structure, reducing the resistance in the rotation of the gear ring 4, and facilitating the rotation of the gear ring 4.

[0026] The upper end of the first limiting ring 38 is provided with a guide chamfer close to the side of the gear ring 4. Thus, the gear ring 4 is easily put into the first partition plate 31 and the second partition plate 32.

[0027] The cleaning device 6 comprises a collecting cylinder 61 which is fixed at both ends of the collecting cylinder 61 on the gear ring 4 at both ends thereof, and a cleaning brush 62 is installed on the collecting cylinder 61 and attached to the outer wall of the filter screen 2 to clean the filter screen 2.

[0028] The shell 1 is fixedly connected with a first air duct shell 7 and a second air duct shell 8, the first air duct shell 7 is fixed at the end of the filter screen 2, a ventilation hole is formed in the middle of the first air duct shell 7 and the ventilation hole is arranged opposite to the inner hole of the filter screen 2, an air outlet duct is formed between the second air duct shell 8 and the first air duct shell 7, a fan 9 is installed on the second air duct shell 8, the output shaft of the fan 9 extends into the air outlet duct and is fixedly connected with a fan blade 91, the fan blade 91 rotates to suck air outside the filter screen 2 into the inner cavity of the filter screen 2 and discharge the air from the air outlet duct. As shown in Figure 6 The arrow direction is the air flow direction, the air passes through the filter screen 2 from the outside of the shell 1 into the inner cavity of the filter screen 2, and the fan 9 drives the fan blade 91 to suck the air out of the air outlet duct.

[0029] The part not involved in the technical scheme can be realized by using the prior art.

[0030] The basic principle, main features and characteristics of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application includes the appended claims and their equivalents.

Claims

1. A double gear drive apparatus, characterized by: The utility model provides a filter screen cleaning device, including casing (1) and install the cylindrical filter screen (2) in casing (1), casing (1) is fixedly connected with installation component (3), installation component (3) is located at both ends of filter screen (2), installation component (3) includes with the fixed connection of casing (1) first baffle (31) and second baffle (32), the first baffle (31) is formed with installation clamp cavity between second baffle (32), the installation clamp cavity is clamped with the gear ring (4) of rotation sliding fit with installation component (3), the outer wall of gear ring (4) is provided with meshing tooth, the second baffle (32) is installed with drive motor (5), the output shaft of drive motor (5) extends to installation clamp cavity and is fixedly connected with first gear (51), first gear (51) and the meshing tooth of gear ring (4) are mutually engaged and form gear transmission, the second baffle (32) is fixedly connected with the vertical plate (33) of perpendicularity to the second baffle (32) near casing (1) center one side, the vertical plate (33) is fixedly connected with the supporting plate (34) of second baffle (32) one end away, the both ends of filter screen (2) are fixed on supporting plate (34), and the gear ring (4) between both ends of filter screen (2) is installed with the cleaning device (6) for cleaning the sundries on the surface of filter screen (2).

2. A double gear drive as claimed in claim 1, characterized in that: The inner side of gear ring (4) is provided with the first sliding rib (41) of protruding, the first sliding rib (41) is attached with the near casing (1) one side side wall of vertical plate (33), the first baffle (31) is provided with the second sliding rib (35) of protruding, the supporting plate (34) extends to the second baffle (32) one end away of gear ring (4), the supporting plate (34) is fixedly connected with third sliding rib (36), the second sliding rib (35) and third sliding rib (36) are abutted on the surface of gear ring (4), the second baffle (32) is provided with fourth sliding rib (37) near gear ring (4) one side, the first baffle (31) is provided with first limiting ring (38), and the first limiting ring (38) is located on the outer side of gear ring (4) to limit gear ring (4) in first limiting ring (38).

3. A double gear drive as claimed in claim 2, characterized in that: The upper end of first limiting ring (38) is provided with guide chamfer near gear ring (4) one side.

4. A double gear drive as claimed in claim 1, characterized in that: The cleaning device (6) includes collecting cylinder (61), both ends of collecting cylinder (61) are fixed on gear ring (4) at both ends respectively, and cleaning brush (62) is installed on collecting cylinder (61), and cleaning brush (62) is attached on the outer wall of filter screen (2) to clean filter screen (2).

5. A double gear drive as claimed in claim 1, wherein: The first air duct shell (7) is fixed at the end of the filter screen (2), a ventilation hole is formed in the middle of the first air duct shell (7), and the ventilation hole is arranged opposite to the inner hole of the filter screen (2), the second air duct shell (8) and the first air duct shell (7) form an air outlet air duct, the fan (9) is installed on the second air duct shell (8), the output shaft of the fan (9) extends into the air outlet air duct and is fixedly connected with the fan blade (91), and the rotation of the fan blade (91) can suck the air outside the filter screen (2) into the inner cavity of the filter screen (2) and then discharge the air from the air outlet air duct.

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