Linkage control device of new exhaust unit

Abstract

The utility model discloses a novel exhaust unit linkage control device which comprises a shell, fan blades and a sliding plate, two fans are arranged in two air channels, a motor drives one of the fans to rotate, the sliding plate is arranged between the two fans, two first gears are arranged at the top of the shell and connected with the two fans respectively, and the two first gears are connected with the two fans respectively. Two second gears which are connected with each other are arranged at the top of the sliding plate, when the two fans need to rotate at the same time, the sliding plate slides, the two second gears are meshed with the two first gears correspondingly, one motor drives the two fans to rotate at the same time, and when one fan needs to be closed, the sliding block slides, and the second gears are separated from the first gears; and the exhaust air rate can be conveniently and flexibly controlled according to different environments.

Description

Technical Field

[0001] This utility model relates to the field of exhaust fan unit technology, specifically a new exhaust fan unit linkage control device. Background Technology

[0002] An exhaust fan is an air conditioning appliance that uses an electric motor to drive the fan blades to rotate and create airflow, thus exchanging indoor and outdoor air. It is also known as a ventilation fan. The purpose of exhaust is to remove stale indoor air and regulate temperature and humidity; it is widely used in homes and public places.

[0003] To increase exhaust efficiency, existing exhaust fans typically have two air ducts, each containing fan blades driven by a single motor. However, in some cases, the exhaust volume of both air ducts is too large, making it inconvenient to shut down one of them. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or existing new exhaust fan unit linkage control device, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a new type of exhaust fan unit linkage control device. It is achieved by installing two fans inside two air ducts, with a motor driving one of the fans to rotate. A sliding plate is installed between the two fans, and two first gears are installed on the top of the housing. The two first gears are connected to the two fans respectively. Two interconnected second gears are installed on the top of the sliding plate. When it is necessary for both fans to rotate simultaneously, the sliding plate is slid, and the two second gears mesh with the two first gears respectively, so that one motor drives both fans to rotate simultaneously. When it is necessary to turn off one of the fans, the sliding block is slid, and the second gears are separated from the first gears. This allows for flexible control of the exhaust volume according to different environments.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A new type of exhaust fan unit linkage control device, comprising:

[0009] The housing has two symmetrically opened air ducts on its side wall, and a bushing is installed inside the air duct. An installation plate is installed on the top of the housing, and a motor is installed on the top of the installation plate. Two fixing plates are symmetrically installed on the top of the housing, and a threaded rod is rotatably connected between the two fixing plates. One end of the threaded rod extends out of the side wall of the fixing plate and is equipped with a knob.

[0010] The fan blades are rotatably connected to the side wall of the bushing. There are two fan blades, which are located inside the two air ducts respectively. A first rotating rod is installed on the side wall of the fan blade. A first helical gear is installed at the other end of the first rotating rod. Two first gears are symmetrically rotatably connected to the top of the housing. A second rotating rod is installed at the bottom of the first gear. The bottom end of the second rotating rod extends into the air duct and is installed with a second helical gear. The two second helical gears mesh with the two first helical gears respectively. One of the first gears is connected to the output end of the motor.

[0011] A slider is located between the two fixed plates. The slider has a threaded hole on its side wall. Two second gears are symmetrically rotatably connected to the top of the slider. A pulley is installed on the top of the second gear. The two pulleys are connected by a belt.

[0012] In a preferred embodiment of the new exhaust fan unit linkage control device described in this utility model, a guide rod is installed between the two fixed plates, a guide hole is provided on the side wall of the slider, and the guide rod passes through the guide hole.

[0013] As a preferred embodiment of the new exhaust fan unit linkage control device described in this utility model, two second fixing plates are symmetrically installed on the side wall of the housing, and the side wall of the second fixing plate is provided with a guide groove.

[0014] As a preferred embodiment of the new exhaust fan unit linkage control device of this utility model, it further includes a side plate, which is located between two second fixed plates. A dustproof net is installed inside the side plate, and guide plates are installed on the symmetrical side walls of the side plate. The guide plates are located inside the guide groove.

[0015] As a preferred embodiment of the new exhaust fan unit linkage control device described in this utility model, a limit plate is installed on the side wall of the side plate, and a limit hole is formed on the side wall of the limit plate.

[0016] As a preferred embodiment of the new exhaust fan unit linkage control device described in this utility model, it further includes a limiting component, which includes a fixed frame installed on the side wall of the housing, a sliding plate located inside the fixed frame, a spring installed on the side wall of the sliding plate, and a limiting rod installed on the other side wall of the sliding plate. The limiting rod extends through the side wall of the fixed frame and passes through the limiting hole.

[0017] Compared with existing technologies: By setting two fans inside two air ducts, a motor drives one of the fans to rotate, and a sliding plate is set between the two fans. Two first gears are set on the top of the housing, and the two first gears are connected to the two fans respectively. Two interconnected second gears are set on the top of the sliding plate. When both fans need to rotate at the same time, the sliding plate is slid, and the two second gears mesh with the two first gears respectively, so that one motor drives the two fans to rotate at the same time. When one fan needs to be turned off, the sliding plate is slid, and the second gears are disengaged from the first gears. This allows for flexible control of the exhaust volume according to different environments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is an overall structural diagram of a new type of exhaust fan unit linkage control device according to the present invention;

[0020] Figure 2 This is a partial structural diagram of a new type of exhaust fan unit linkage control device according to the present invention;

[0021] Figure 3 This is a partial structural diagram of a new type of exhaust fan unit linkage control device according to the present invention;

[0022] Figure 4 This is a partial structural diagram of a new type of exhaust fan unit linkage control device according to the present invention;

[0023] Figure 5 This is a partial structural diagram of a new type of exhaust fan unit linkage control device according to the present invention. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] This utility model provides a novel linkage control device for exhaust fan units. It features two fans installed inside two air ducts, with a motor driving one of the fans to rotate. A sliding plate is positioned between the two fans, and two first gears are located on the top of the housing, each connected to one of the two fans. Two interconnected second gears are also located on the top of the sliding plate. When both fans need to rotate simultaneously, the sliding plate is slid, engaging the two second gears with the two first gears, thus enabling one motor to drive both fans to rotate at the same time. When one fan needs to be turned off, the sliding plate is slid, disengaging the second gears from the first gears. This allows for flexible control of the exhaust volume according to different environments.

[0028] Figure 1-5 The diagram shown is a structural schematic of one embodiment of a novel exhaust fan unit linkage control device according to this utility model. Please refer to [link / reference]. Figures 1-5 The novel exhaust fan unit linkage control device of this embodiment includes a housing 100, a fan blade 200, a slider 300, a side plate 400, and a limiting component 500.

[0029] Two air ducts 110 are symmetrically opened on the side wall of the housing 100. A bushing 120 is installed inside the air duct 110. An installation plate 130 is installed on the top of the housing 100. A motor 140 is installed on the top of the installation plate 130. Two fixing plates 150 are symmetrically installed on the top of the housing 100. A threaded rod 160 is rotatably connected between the two fixing plates 150. One end of the threaded rod 160 extends out of the side wall of the fixing plate 150 and is equipped with a knob 170. Two second fixing plates 190 are symmetrically installed on the side wall of the housing 100. A guide groove 191 is opened on the side wall of the second fixing plate 190.

[0030] The fan blades 200 are rotatably connected to the side wall of the bushing 120. There are two fan blades 200, which are located inside the two air ducts 110 respectively. A first rotating rod 210 is installed on the side wall of the fan blades 200. A first helical gear 220 is installed at the other end of the first rotating rod 210. Two first gears 230 are symmetrically rotatably connected to the top of the housing 100. A second rotating rod 240 is installed at the bottom of the first gear 230. The bottom end of the second rotating rod 240 extends into the air duct 110 and is equipped with a second helical gear 250. The two second helical gears 250 mesh with the two first helical gears 220 respectively. One of the first gears 230 is connected to the output end of the motor 140. By starting the motor 140, one of the first gears 230 is driven to rotate. The first gear 230 drives the second rotating rod 240 and the second helical gear 250 to rotate. The second helical gear 250 drives the first helical gear 220, the first rotating rod 210 and the fan blades 200 to rotate. The rotation of the fan blades 200 generates airflow, which exhausts air from the corresponding air duct 110.

[0031] The slider 300 is located between two fixed plates 150. A threaded hole 310 is provided on the side wall of the slider 300. Two second gears 320 are symmetrically rotatably connected to the top of the slider 300. A pulley 330 is mounted on the top of each second gear 320, and the two pulleys 330 are connected by a belt. A guide rod 180 is installed between the two fixed plates 150. A guide hole 340 is provided on the side wall of the slider 300, and the guide rod 180 passes through the guide hole 340. When both fan blades 200 need to rotate simultaneously, rotating the knob 170 drives the threaded rod 160 to rotate, using a screw mechanism to move the slider 300 to the position between the two first gears 230. In this configuration, two second gears 320 mesh with two first gears 230 respectively. When one of the first gears 230 rotates, it drives one of the second gears 320 to rotate. The second gear 320 drives the pulley 330 on its top to rotate. The pulley 330 drives the other pulley 330 and the second gear 320 to rotate via a belt. The other second gear 320 drives the other first gear 230 to rotate, thereby causing the two fan blades 200 to rotate simultaneously. When only one exhaust channel is needed, rotating the knob 170 pushes the slider 300 to move, and the second gear 320 separates from the first gear 230.

[0032] The side plate 400 is located between two second fixed plates 190. A dustproof net 410 is installed inside the side plate 400. A guide plate 420 is installed on the symmetrical side wall of the side plate 400. The guide plate 420 is located inside the guide groove 191. A limit plate 430 is installed on the side wall of the side plate 400. A limit hole 440 is opened on the side wall of the limit plate 430. The limit assembly 500 includes a fixed frame 510 installed on the side wall of the housing 100, a sliding plate 520 slidably located inside the fixed frame 510, a spring 530 installed on the side wall of the sliding plate 520, and a limit rod 540 installed on the other side wall of the sliding plate 520. The limit rod 540 extends through the side wall of the fixed frame 510 and passes through the limit hole 440. By pulling the sliding plate 520 into the fixed frame 510 and squeezing the spring, the limit rod 540 can be used to limit the sliding plate 520. Spring 530 and limiting rod 540 slide into the fixed frame 510 along with slide plate 520. At this time, push side plate 400 to slide between two second fixed plates 190. Guide plate 420 slides in guide groove 191. Release slide plate 520. Spring 530 rebounds and pushes slide plate 520 and limiting rod 540 to move towards limiting plate 430. Limiting rod 540 passes through limiting hole 440 and limits and fixes side plate 400 at the opening of air duct 110. Dustproof net 410 prevents dust at the opening of air duct 110. When it is necessary to remove side plate 400, pull slide plate 520 to drive limiting rod 540 into fixed frame 510. Pull side plate 400 to separate from two second fixed plates 190 to clean dustproof net 410.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A novel exhaust fan unit linkage control device, characterized in that, include: A housing (100) has two symmetrically arranged air ducts (110) on its sidewalls. A bushing (120) is installed inside the air duct (110). An mounting plate (130) is installed on the top of the housing (100). A motor (140) is installed on the top of the mounting plate (130). Two fixing plates (150) are symmetrically installed on the top of the housing (100). A threaded rod (160) is rotatably connected between the two fixing plates (150). One end of the threaded rod (160) extends out of the sidewall of the fixing plate (150) and is fitted with a knob (170). Two fan blades (200) are rotatably connected to the side wall of the bushing (120). The fan blades (200) are located inside the two air ducts (110) respectively. A first rotating rod (210) is installed on the side wall of the fan blade (200). A first helical gear (220) is installed at the other end of the first rotating rod (210). Two first gears (230) are symmetrically rotatably connected to the top of the housing (100). A second rotating rod (240) is installed at the bottom of the first gear (230). The bottom end of the second rotating rod (240) extends into the air duct (110) and is equipped with a second helical gear (250). The two second helical gears (250) mesh with the two first helical gears (220) respectively. One of the first gears (230) is connected to the output end of the motor (140). A slider (300) is located between two fixed plates (150). The slider (300) has a threaded hole (310) on its side wall. Two second gears (320) are symmetrically rotatably connected to the top of the slider (300). A pulley (330) is installed on the top of the second gear (320). The two pulleys (330) are connected by a belt.

2. The new exhaust fan unit linkage control device according to claim 1, characterized in that, A guide rod (180) is installed between the two fixed plates (150), and a guide hole (340) is provided on the side wall of the slider (300), through which the guide rod (180) passes.

3. The new exhaust fan unit linkage control device according to claim 2, characterized in that, Two second fixing plates (190) are symmetrically installed on the side wall of the housing (100), and the side wall of the second fixing plate (190) is provided with a guide groove (191).

4. The new exhaust fan unit linkage control device according to claim 3, characterized in that, It also includes a side plate (400) located between two second fixing plates (190), a dustproof net (410) installed inside the side plate (400), and guide plates (420) installed on the symmetrical sidewalls of the side plate (400), the guide plates (420) being located inside the guide groove (191).

5. The new exhaust fan unit linkage control device according to claim 4, characterized in that, A limiting plate (430) is installed on the side wall of the side plate (400), and a limiting hole (440) is formed on the side wall of the limiting plate (430).

6. The new exhaust fan unit linkage control device according to claim 5, characterized in that, It also includes a limiting component (500), which includes a fixed frame (510) mounted on the side wall of the housing (100), a sliding plate (520) slidably located inside the fixed frame (510), a spring (530) mounted on the side wall of the sliding plate (520), and a limiting rod (540) mounted on the other side wall of the sliding plate (520). The limiting rod (540) extends through the side wall of the fixed frame (510) and passes through the limiting hole (440).

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