Device for efficiently cleaning fan coil
By designing a device including a brake motor, reel, steel wire and counterweight, the problem of dust on the inner surface of the filter in the fan coil is difficult to clean, and the efficient cleaning effect of both ends of the brush is achieved.
Patent Information
- Application Number
- CN202421368931.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-17
AI Technical Summary
It is difficult to effectively clean the dust on the inner surface of the filter screen in the fan coil, especially due to the obstruction of the coil structure, the brush is prone to skew during cleaning, which reduces the cleaning effect.
A device is designed including a housing, a brush, a brake motor, a reel, a wire and a counterweight. By starting the brake motor forward rotation and reeling, unwinding the steel wire, under the traction of the counterweight, the brush is driven to slide downward along the guide mechanism, and dust on the inner surface of the filter. The counterweight block can act on the entire brush facing downward, reducing the skewness of both ends of the brush and improving the cleaning effect.
It effectively reduces the skewness of both ends of the brush, improves the cleaning effect of both ends of the brush, and can clean the filter of the fan coil multiple times.
Smart Images
Figure CN222641549U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fan coil units, and specifically relates to a device for efficiently cleaning fan coil units. Background Art
[0002] The basic structure of a fan coil unit includes coils, fans, controllers and housings. The coils and fans are placed inside the housing, and the fans are used to drive air into the housing along the filter. As one of the core components in the central air conditioning system, the fan coil unit relies on the filter to remove dust from the air for clean air output, so the filter needs to be cleaned regularly.
[0003] Generally, it is necessary to clean the inner and outer surfaces of the above-mentioned filter. The outer surface of the filter is exposed and can be directly wiped with a cloth, while the inner surface of the filter is hidden inside the shell, and the coil will hinder the insertion of hands, making it inconvenient to wipe directly. A driving element is installed above the shell, and the driving element is started to push the connecting rod and the brush up and down, and the dust on the inner surface of the filter is swept away by the brush.
[0004] When a brush is used to clean the inner surface of the filter, due to the small distance between the fan coil unit and the ceiling, the brush is usually pushed up and down by an electric push rod, and the filter is often in the shape of a long strip, which makes the horizontal span of the brush sweeping dust larger. The center of gravity of the brush is easy to deviate from the electric push rod, causing the two ends of the brush to tilt, reducing the cleaning effect of the two ends of the brush. For this reason, we propose a device for efficiently cleaning fan coil units. Utility Model Content
[0005] The utility model aims to provide a device for efficiently cleaning a fan coil unit, which can act on the entire brush downwards, reduce the degree of skewness at both ends of the brush, and improve the cleaning effect of both ends of the brush.
[0006] The technical solutions adopted in this utility are as follows:
[0007] A device for efficiently cleaning a fan coil unit comprises a shell and a brush, wherein the brush is arranged inside the shell, a brake motor is fixed on the upper surface of the shell, a winding disk is fixed on the output end of the brake motor, the central axis of the winding disk coincides with the central axis of the brake motor, a steel wire is wound around the outer side of the winding disk, one end of the steel wire extends into the shell to form a "Y"-shaped fork, a counterweight is fixed on the back of the brush, the upper surface of the counterweight is fixedly connected to both sides of the fork of the steel wire, a guide mechanism connected to the counterweight is arranged inside the shell, and when cleaning the inner surface of the filter screen, Start the brake motor to rotate the reel forward and unwind the steel wire. Under the traction of the counterweight, the brush is driven to slide downward along the guide mechanism so that the bristles of the brush sweep the dust on the inner surface of the filter downward. The counterweight can act on the entire brush downward to reduce the degree of skewness at both ends of the brush to improve the cleaning effect at both ends of the brush until the brush reaches the lower edge of the filter. Then control the brake motor to reverse the reel, rewind the steel wire, pull the counterweight and the brush to rise, sweep the dust on the inner surface of the filter upward, and stop when they reach above the filter. Repeat this lifting and lowering to clean the filter of the fan coil unit many times.
[0008] The guide mechanism includes two guide rods fixed side by side inside the outer shell, and slip rings are installed through both ends of the counterweight block. The two slip rings are respectively sleeved on the outside of the two guide rods. When the counterweight block is lifted or lowered, the slip rings are driven to slide along the guide rods, and the counterweight block is limited along the guide rods, so that the brush is always lifted or lowered along the inner surface of the filter screen, and the two guide rods are horizontally staggered from the filter screen to avoid blocking the filter screen.
[0009] A plurality of gaskets are fixed on the upper wall of the shell, and the gaskets are all located above the counterweight block. When the counterweight block and the brush rise due to inertia, they can stop by hitting the gaskets. The gaskets are used to separate the counterweight block and the shell to avoid hard collision between the two.
[0010] An ash hopper is integrally installed on the lower surface of the shell, and the lower wall of the ash hopper is inclined toward the middle. The dust swept by the brush falls downward into the ash hopper, and the dust slides along the inclined surface toward the middle of the ash hopper and gathers, which is convenient for collecting dust.
[0011] A slag discharge valve is fixed in the middle of the lower end of the ash receiving hopper. When the fan coil stops blowing, a trash can is used to collect dust at the outlet of the slag discharge valve. After the slag discharge valve is opened, the dust in the ash receiving hopper falls into the trash can for unified treatment. After the dust stops discharging, the slag discharge valve is closed.
[0012] The steel wire is sleeved with a rubber ring on the outside, and the rubber ring is installed through the upper surface of the shell. The steel wire passes through the shell along the circular hole, and the rubber ring is used to seal the circular hole to improve the sealing performance of the fan coil unit during ventilation. The surface of the rubber ring is smooth, and the friction effect on the steel wire is small and can be ignored.
[0013] The technical effects achieved by this utility model are:
[0014] The utility model discloses a device for efficiently cleaning fan coil units. When cleaning the inner surface of the filter screen, the brake motor is started to rotate the reel forward to unwind the steel wire. Under the traction action of the counterweight block, the brush is driven to slide downward along the guide mechanism, so that the bristles of the brush sweep the dust on the inner surface of the filter screen downward. The counterweight block can act on the entire brush downward to reduce the degree of skewness at both ends of the brush to improve the cleaning effect of both ends of the brush until the brush reaches the lower edge of the filter screen. The brake motor is then controlled to reverse the reel, wind up the steel wire, pull the counterweight block and the brush to rise, sweep the dust on the inner surface of the filter screen upward, and stop when they reach above the filter screen. The lifting and lowering are repeated in this way, and the filter screen of the fan coil unit can be cleaned many times. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view of a practical device for efficiently cleaning fan coil units;
[0016] Figure 2 It is a cross-sectional view of the shell of the utility model;
[0017] Figure 3 It is the front view of the counterweight block of the utility model;
[0018] Figure 4 This is a practical Figure 1 Magnified view at A in the middle.
[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0020] 1. Casing; 2. Brush; 3. Brake motor; 4. Reel; 5. Steel wire; 6. Counterweight; 7. Guide rod; 8. Slip ring; 9. Gasket; 10. Ash hopper; 11. Slag discharge valve; 12. Rubber ring. DETAILED DESCRIPTION
[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.
[0022] like Figure 1-4As shown, a device for efficiently cleaning a fan coil unit comprises a shell 1 and a brush 2. A filter screen is embedded in the air inlet of the shell 1. The brush 2 is pressed against the inner surface of the filter screen. The brush 2 is arranged inside the shell 1. A brake motor 3 is fixed on the upper surface of the shell 1. The brake motor 3 can select a YEJ series three-phase asynchronous motor. The signal of the brake motor 3 is connected to the development board of the fan coil unit. A winding disk 4 is fixed on the output end of the brake motor 3. The central axis of the winding disk 4 coincides with the central axis of the brake motor 3. A steel wire 5 is wound around the outer side of the winding disk 4. One end of the steel wire 5 extends into the interior of the shell 1 to form a "Y" shape fork. The back of the brush 2 is fixed. There is a counterweight block 6, the upper surface of which is fixedly connected to both sides of the fork of the steel wire 5. A guide mechanism connected to the counterweight block 6 is arranged inside the shell 1. The shell 1 is suspended from the ceiling by a steel rod. The coil is connected to the circulating water pump to circulate the cooling water in the coil. During refrigeration, the fan inhales air, and uses the water flow in the coil to take away the heat of the airflow for cooling. The filter is used to filter the dust in the airflow, so that the dust gathers on the inner and outer surfaces of the filter. The outer surface of the filter is exposed and can be directly wiped with a cloth, while the inner surface of the filter is hidden inside the shell, and the coil will hinder the insertion of the hand, which is not convenient for direct wiping.
[0023] When cleaning the inner surface of the filter, start the brake motor 3 to rotate the reel 4 forward, unwind the steel wire 5, and under the traction of the counterweight 6, drive the brush 2 to slide downward along the guide mechanism, so that the bristles of the brush 2 sweep the dust on the inner surface of the filter downward, and the counterweight 6 can act on the entire brush 2 downward to reduce the degree of skewness at both ends of the brush 2 to improve the cleaning effect of the two ends of the brush 2 until the brush 2 reaches the lower edge of the filter, and then control the brake motor 3 to reverse the reel 4, rewind the steel wire 5, pull the counterweight 6 and the brush 2 to rise, sweep the dust on the inner surface of the filter upward, and stop when they reach above the filter. Repeated lifting and lowering can clean the filter of the fan coil unit many times.
[0024] For the external brake motor 3, it only needs to work with the winding reel 4, which occupies a small space, especially when the interval between the fan coil unit and the ceiling is small, and no large activity space is required, which can solve the problem of being inconvenient to install in a small interval position.
[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the guide mechanism includes two guide rods 7 fixed side by side inside the shell 1, and slip rings 8 are installed through both ends of the counterweight block 6. The slip rings 8 can be made of smooth ceramic material, which is wear-resistant and high-temperature resistant. The two slip rings 8 are respectively sleeved on the outside of the two guide rods 7. When the counterweight block 6 is lifted or lowered, the slip rings 8 are driven to slide along the guide rods 7, and the counterweight block 6 is limited along the guide rods 7, so that the brush 2 is always lifted and lowered close to the inner surface of the filter screen, and the two guide rods 7 are horizontally staggered from the filter screen to avoid blocking the filter screen.
[0026] like Figure 1 and Figure 2 As shown, a plurality of gaskets 9 are fixed on the upper wall of the outer shell 1. The gaskets 9 can be made of rubber material, which is soft and impact-resistant. The gaskets 9 are all located above the counterweight 6. When the counterweight 6 and the brush 2 rise due to inertia, they can stop when they hit the gasket 9. The gasket 9 is used to separate the counterweight 6 and the outer shell 1 to avoid a hard collision between the two.
[0027] like Figure 1 and Figure 2 As shown, an ash hopper 10 is integrally installed on the lower surface of the shell 1. The lower wall of the ash hopper 10 is inclined toward the middle. The dust swept by the brush 2 falls downward into the ash hopper 10. The dust slides along the inclined surface toward the middle of the ash hopper 10 and gathers, which is convenient for collecting dust.
[0028] like Figure 1 and Figure 2 As shown, a slag discharge valve 11 is fixed in the middle of the lower end of the ash hopper 10. When the fan coil unit stops blowing, a trash can is used to collect dust at the outlet of the slag discharge valve 11. In this way, after the slag discharge valve 11 is opened, the dust in the ash hopper 10 falls into the trash can and is processed uniformly. After the dust stops discharging, the slag discharge valve 11 is closed.
[0029] like Figure 1 and Figure 4 As shown, a rubber ring 12 is sleeved on the outside of the steel wire 5, and the rubber ring 12 is installed through the upper surface of the shell 1. The steel wire 5 passes through the shell 1 along the circular hole, and the rubber ring 12 is used to seal the circular hole to improve the sealing performance of the fan coil unit during ventilation. The surface of the rubber ring 12 is smooth, and the friction effect on the steel wire 5 is small and can be ignored.
[0030] The working principle of the utility model is as follows: during cooling, the fan inhales air, and the water flow in the coil takes away the heat of the airflow for cooling, and the filter is used to filter the dust in the airflow, so that the dust gathers on the inner and outer surfaces of the filter. The outer surface of the filter is exposed and can be directly wiped with a handheld cloth, while the inner surface of the filter is hidden inside the shell 1, and the coil will hinder the insertion of the hand, so it is not convenient to wipe it directly.
[0031] When cleaning the inner surface of the filter, start the brake motor 3 to rotate the reel 4 forward, unwind the steel wire 5, and under the traction of the counterweight 6, drive the brush 2 to slide downward along the guide mechanism, so that the bristles of the brush 2 sweep the dust on the inner surface of the filter downward, and the counterweight 6 can act on the entire brush 2 downward to reduce the degree of skewness at both ends of the brush 2 to improve the cleaning effect of the two ends of the brush 2 until the brush 2 reaches the lower edge of the filter, and then control the brake motor 3 to reverse the reel 4, rewind the steel wire 5, pull the counterweight 6 and the brush 2 to rise, sweep the dust on the inner surface of the filter upward, and stop when they reach above the filter. Repeated lifting and lowering can clean the filter of the fan coil unit many times.
[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. A device for efficiently cleaning a fan coil unit, comprising a housing (1) and a brush (2), wherein the brush (2) is arranged inside the housing (1), and characterized in that: A brake motor (3) is fixed to the upper surface of the housing (1), a winding reel (4) is fixed to the output end of the brake motor (3), the central axis of the winding reel (4) coincides with the central axis of the brake motor (3), a steel wire (5) is wound around the outer side of the winding reel (4), one end of the steel wire (5) extends into the interior of the housing (1) and forks in a "Y" shape, a counterweight (6) is fixed to the back of the brush (2), the upper surface of the counterweight (6) is fixedly connected to the two sides of the fork of the steel wire (5), and a guide mechanism connected to the counterweight (6) is provided inside the housing (1).
2. The device for efficiently cleaning a fan coil unit according to claim 1, characterized in that: The guide mechanism comprises two guide rods (7) fixed side by side inside the housing (1); both ends of the counterweight (6) are penetrated by slip rings (8); the two slip rings (8) are respectively sleeved outside the two guide rods (7).
3. The device for efficiently cleaning a fan coil unit according to claim 1, characterized in that: A plurality of gaskets (9) are fixed to the upper wall of the outer shell (1), and the gaskets (9) are all located above the counterweight block (6).
4. The device for efficiently cleaning a fan coil unit according to claim 1, characterized in that: An ash receiving hopper (10) is integrally mounted on the lower surface of the shell (1), and the lower wall of the ash receiving hopper (10) is inclined toward the middle.
5. The device for efficiently cleaning a fan coil unit according to claim 4, characterized in that: A slag discharge valve (11) is fixedly connected in the middle of the lower end of the ash receiving hopper (10).
6. The device for efficiently cleaning a fan coil unit according to claim 1, characterized in that: The steel wire (5) is sleeved with a rubber ring (12) on its exterior, and the rubber ring (12) is installed through the upper surface of the housing (1).