Electric fan pitching adjusting structure

Abstract

The utility model belongs to the technical field of electric fan installation, and particularly relates to an electric fan pitching adjusting structure which comprises a rotating shaft, and bearings are installed at the two ends of the rotating shaft. By arranging the electromagnetic valve, the liquid suction pump, the liquid conveying pipe, the spray head, the waste liquid pipe and the slag collecting box, when the electric fan pitching adjusting structure works, an operator starts the liquid suction pump and the electromagnetic valve, and the liquid suction pipe A and the liquid suction pipe B which are connected with the input end of the electric fan pitching adjusting structure suck rust removers stored in the upstream of the electric fan pitching adjusting structure. And then the rust remover is sprayed into the bearing through the liquid conveying pipe and the spray head, and the rust remover can be evenly distributed through rotation of the bearing. And meanwhile, the cleaned liquid and stains are collected by a waste liquid pipe at the downstream of the bearing and are guided into a residue collecting box. The filter plate has a filtering function, so that the liquid is separated from the stains. Therefore, the electric fan pitching adjusting structure provided by the utility model achieves the working effects of automatically and efficiently lubricating and cleaning the interior of the bearing seat of the pitching device and collecting dirt generated by cleaning.

Description

Technical Field

[0001] This utility model relates to the field of electric fan installation technology, specifically an electric fan pitch adjustment structure. Background Technology

[0002] A fan tilt adjustment mechanism is a mechanical device used to adjust the tilt angle of the fan head (including the blades and motor assembly). This mechanism changes the vertical direction of the airflow to meet the needs of different heights and angles. Its core function is to adjust the angle of the fan head in the vertical plane and maintain stability after adjustment, ensuring that the airflow direction meets the user's expectations.

[0003] The working principle of the electric fan's pitch adjustment mechanism is as follows: Through mechanical transmission (gears, lead screws, connecting rods, etc.), the user's adjustment force is converted into rotational motion of the fan head around the support shaft. A locking device or friction is used to maintain the adjusted angle, and a limiting structure ensures the movement remains within a safe range. The electric fan's pitch adjustment mechanism achieves flexible control of the fan's airflow angle through the logic of "support shaft positioning - transmission mechanism adjustment - locking device fixation." Its core lies in the stability of the mechanical transmission and the reliability of the locking device, ensuring that users can easily adjust the airflow direction in different scenarios.

[0004] During the operation of the pitch adjustment mechanism of an electric fan, dust and rust can easily accumulate inside the bearing at the end of the pitch device after a period of use. This can affect the working efficiency of the pitch device, potentially causing it to jam, swing slowly, or fail to pitch properly. Currently, the main solution to this problem relies on manual disassembly, cleaning, and lubrication, which is inefficient. Therefore, this invention provides an electric fan pitch adjustment mechanism that can automatically and efficiently lubricate and clean the inside of the pitch device bearing housing and collect the resulting dirt. Summary of the Invention

[0005] The purpose of this utility model embodiment is to provide a pitch adjustment structure for an electric fan, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pitch adjustment structure for an electric fan includes a rotating shaft with bearings installed at both ends. A mounting box is installed outside the bearings, and a mounting plate is installed on the surface of the bearings. A suction pump is installed on the surface of the mounting plate, and a suction pipe B is connected to the input end of the suction pump. A solenoid valve is installed at one end of the suction pipe B, and a suction pipe A is connected to one end of the solenoid valve. An infusion pipe is installed at the output end of the suction pump, and a nozzle is installed at one end of the infusion pipe.

[0008] Furthermore, a slag collection box is installed on the surface of the mounting box, and a filter plate is provided inside the slag collection box. A waste liquid pipe is provided on one side of the bearing, and one end of the waste liquid pipe is inserted into the interior of the slag collection box.

[0009] Furthermore, the filter plate has V-shaped filter holes on its surface, and the filter plate is detachably fixed to the slag collection box groove.

[0010] Furthermore, the nozzle is positioned opposite the balls inside the bearing.

[0011] Furthermore, a funnel is installed at one end of the waste liquid pipe.

[0012] Furthermore, the surface of the slag collection box is provided with a cleaning port.

[0013] Furthermore, the suction pump is waterproof.

[0014] Furthermore, a rubber sealing ring is installed at the connection between the mounting box and the rotating shaft.

[0015] The electric fan tilt adjustment structure provided by this utility model has the following beneficial effects:

[0016] By incorporating a solenoid valve, a suction pump, a delivery pipe, a nozzle, a waste pipe, and a slag collection box, the operator activates the suction pump and solenoid valve during the operation of the electric fan's pitch adjustment mechanism. This allows the suction pipes A and B, connected to their input ends, to draw in the rust remover stored upstream. The rust remover is then sprayed into the bearing's interior through the delivery pipe and nozzle. With the bearing's rotation, the rust remover is evenly distributed. Simultaneously, the cleaned liquid and dirt are collected by the waste pipe downstream of the bearing and directed into the slag collection box. Due to the filtering effect of the filter plate, the liquid and dirt are separated. Therefore, the electric fan pitch adjustment mechanism provided by this invention achieves the effect of automatically and efficiently lubricating and cleaning the interior of the pitch device bearing housing and collecting the resulting dirt. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a pitch adjustment structure for an electric fan.

[0018] Figure 2 This is a front sectional view of a pitch adjustment structure for an electric fan.

[0019] Figure 3 A pitch adjustment structure for an electric fan Figure 2 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Rotating shaft; 2. Bearing; 3. Mounting box; 4. Liquid inlet; 5. Suction tube A; 6. Solenoid valve; 7. Suction tube B; 8. Suction pump; 9. Mounting plate; 10. Infusion tube; 11. Nozzle; 12. Waste liquid tube; 13. Sludge collection box; 14. Cleaning port; 15. Filter plate; 16. Rubber sealing ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a tilt adjustment structure for an electric fan, including a rotating shaft 1. Other fan mechanisms are mounted on the surface of the rotating shaft 1, allowing these mechanisms to tilt and oscillate under the influence of the rotating shaft 1. Bearings 2 are mounted at both ends of the rotating shaft 1; the bearings 2 can be ball bearings. The above-mentioned technical features are all mature existing technologies, and are technical solutions that are readily available or conceived by those skilled in the art. Those skilled in the art can make corresponding adjustments and selections based on the above technical solutions.

[0024] like Figures 1-3 As shown, in one embodiment of this utility model, a mounting box 3 is installed on the outside of the bearing 2, and a mounting plate 9 is installed on the surface of the bearing 2. A suction pump 8 is installed on the surface of the mounting plate 9. Preferably, the suction pump 8 can be a miniature electromagnetic pump, whose main working principle is that electromagnetic force directly drives the piston or diaphragm to move, without the need for motor transmission. It is suitable for working scenarios with low head, low flow rate and confined space.

[0025] The input end of the suction pump 8 is connected to a suction tube B7. One end of the suction tube B7 is inserted into the rust remover setting area. WD-40 rust remover can be used; it is readily available and provides both rust removal and lubrication. A solenoid valve 6 is installed at the other end of the suction tube B7, and one end of the solenoid valve 6 is connected to a suction tube A5. This design allows operators to control the solenoid valve 6 and the suction pump 8 via signals. A delivery tube 10 is installed at the output end of the suction pump 8, and a nozzle 11 is installed at one end of the delivery tube 10. Preferably, the nozzle 11 is a Venturi nozzle, which produces a finer and more uniform water mist.

[0026] In this embodiment, the nozzle 11 is positioned opposite the balls inside the bearing 2. This design ensures that the rust-removing liquid sprayed from the nozzle 11 can be completely sprayed onto the surface of the balls inside the bearing 2, thereby achieving a cleaning and lubrication effect.

[0027] In this embodiment, the suction pump 8 is waterproof. This design takes into account that waterproof pumps are more suitable for closed environments containing liquids. If a waterproof pump is not used, the suction pump 8 may easily develop corrosion failures after a period of use. Therefore, the suction pump 8 can be a pump that is waterproof from the factory, or a waterproof material can be evenly sprayed onto its surface before installation.

[0028] In this embodiment, a rubber sealing ring 16 is installed at the connection between the mounting box 3 and the rotating shaft 1. This design is to better prevent external dirt from entering the bearing, and rubber, as a material that is not easily corroded, wear-resistant, and readily available, makes for a better sealing ring.

[0029] like Figure 1 and Figure 2 As shown, in one embodiment of this utility model, a slag collection box 13 is mounted on the surface of the mounting box 3, and a filter plate 15 is provided inside the slag collection box 13. A waste liquid pipe 12 is provided on one side of the bearing 2, and one end of the waste liquid pipe 12 is inserted into the interior of the slag collection box 13. This design is to achieve solid-liquid separation of waste liquid and residue through the filter plate 15, thereby enabling better classification and cleaning.

[0030] In this embodiment, a cleaning port 14 is provided on one side of the sludge collection box 13, and V-shaped filter holes are provided on the surface of the filter plate 15. The filter plate 15 is detachably fixed to the sludge collection box 13 via a sliding groove. This design allows waste liquid with stains to enter the sludge collection box 13 for separation of stains and liquid, and the V-shaped filter hole design provides better filtration and is less prone to clogging. The way the filter plate 15 is connected to the sludge collection box 13 via the sliding groove allows the filter plate 15 to be detached from the sludge collection box 13 for individual cleaning after the cleaning port 14 is opened.

[0031] In this embodiment, a funnel is installed at one end of the waste liquid pipe 12. This design takes into account that the lower end of the bearing 2 will drip liquid with stains and residue after cleaning, and the funnel can catch the liquid to the greatest extent and prevent the liquid from being dispersed in the mounting box 3.

[0032] The working principle of this invention is as follows: When the electric fan pitch adjustment structure is in operation, the operator starts the suction pump 8 and the solenoid valve 6, causing the suction pipes A5 and B7 connected to their input ends to draw in the rust-removing lubricant stored upstream. This lubricant is then sprayed into the interior of the bearing 2 through the delivery pipe 10 and the nozzle 11. With the rotation of the bearing 2, the rust-removing lubricant is evenly distributed. Simultaneously, the cleaned liquid and dirt are collected by the waste liquid pipe 12 downstream of the bearing 2 and directed into the slag collection box 13. Because the filter plate 15 has V-shaped filter holes on its surface, it has a filtration effect that prevents clogging, thus allowing the liquid and dirt to be collected and processed separately. Therefore, the electric fan pitch adjustment structure provided by this invention achieves the working effect of automatically and efficiently lubricating and cleaning the interior of the pitch device bearing seat and collecting the resulting dirt.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric fan pitch adjusting structure comprising a rotating shaft (1), and bearings (2) are installed at both ends of the rotating shaft (1), characterized in that, The outer part of the bearing (2) is mounted with a mounting box (3), and the surface of the bearing (2) is mounted with a mounting plate (9), the surface of the mounting plate (9) is mounted with a liquid suction pump (8), the input end of the liquid suction pump (8) is connected with a liquid suction pipe B (7), one end of the liquid suction pipe B (7) is mounted with an electromagnetic valve (6), one end of the electromagnetic valve (6) is connected with a liquid suction pipe A (5), the output end of the liquid suction pump (8) is mounted with a liquid delivery pipe (10), and one end of the liquid delivery pipe (10) is mounted with a spray head (11).

2. An electric fan pitch adjustment structure according to claim 1, characterized in that The surface of the mounting box (3) is mounted with a slag collecting box (13), and the inside of the slag collecting box (13) is provided with a filter plate (15), one side of the bearing (2) is provided with a waste liquid pipe (12), and one end of the waste liquid pipe (12) is inserted into the inside of the slag collecting box (13).

3. An electric fan pitch adjustment structure according to claim 2, wherein The surface of the filter plate (15) is provided with V-shaped filter holes, and the filter plate (15) is detachably fixed with the sliding groove of the slag collecting box (13).

4. An electric fan pitch adjustment structure according to claim 1, wherein The position of the spray head (11) is opposite to the ball inside the bearing (2).

5. An electric fan pitch adjustment structure according to claim 2, wherein One end of the waste liquid pipe (12) is mounted with a funnel.

6. An electric fan pitch adjustment structure according to claim 2, wherein One side of the slag collecting box (13) is provided with a cleaning port (14).

7. The tilt adjustment structure of an electric fan according to claim 1, wherein The liquid suction pump (8) is waterproof.

8. The electric fan pitch adjustment structure according to claim 1, characterized by The connecting part of the mounting box (3) and the rotating shaft (1) is mounted with a rubber sealing ring (16).

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