Electric vacuum suction cup wall fan

Abstract

An electric vacuum suction cup wall fan relates to the technical field of wall fans and structurally comprises a wall fan body, a wall fan seat upper cover, a wall fan seat bottom shell, an air suction inlet, a vacuum pump, an air outlet valve, a pressure release valve, a vacuum pipe and a breather pipe, the wall fan body is mounted above the wall fan seat upper cover, and the wall fan seat upper cover and the wall fan seat bottom shell are connected to form a wall fan base shell. The wall fan base shell comprises a base inner cavity, the vacuum pump is arranged in the base inner cavity, the opening end of the ventilation pipe is arranged on one side of the wall fan base bottom shell, the ventilation pipe is connected with the pressure release valve and the vacuum pump, the air suction inlet is formed in the bottom face of the wall fan base bottom shell, the vacuum pipe comprises a plurality of ports and branch sections, the first port is connected with the air suction inlet, and the second port is connected with the branch sections. The second port is connected with the vacuum pump, the air outlet valve is arranged at the branch section where the second port of the vacuum pipe is located, and the third port is connected with the breather pipe through the pressure release valve. The utility model can be mounted on most of wall surfaces through vacuum adsorption, and is wide in application range and easy to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of wall fans, and specifically relates to an electric vacuum sucker wall fan. Background Art

[0002] A wall fan refers to a small electric fan installed on a wall to save space. The characteristics of a wall fan are convenience, practicality and beauty. Currently, wall fans are mostly used in places such as canteens, restaurants, factories, and offices.

[0003] There are many existing installation and fixing methods for wall fans, including wall-mounted, bolted, adhesive pasted, sucker type, etc. Among them, the three fixing methods of wall-mounted, bolted and adhesive pasted will all damage the wall structure. And the suction time of the sucker of an ordinary sucker type wall fan is limited. After a period of time, the suction force of the sucker will be insufficient, causing the wall fan to fall off automatically. To maintain the fixation of this sucker type wall fan, manual intervention is often required, resulting in inconvenient use. Content of the Utility Model

[0004] To solve the problems that the sucker type wall fan is easy to fall off from the wall and has insufficient suction force, the utility model proposes an electric vacuum sucker wall fan.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An electric vacuum sucker wall fan, whose structure includes a wall fan body, an upper cover of the wall fan base, a bottom shell of the wall fan base, an air suction inlet, a vacuum pump, an air outlet valve, a pressure relief valve, a vacuum tube, and a ventilation tube. The wall fan body is installed above the upper cover of the wall fan base. The upper cover of the wall fan base and the bottom shell of the wall fan base are connected to form a wall fan base shell. The wall fan base shell includes a base inner cavity. The vacuum pump is arranged in the base inner cavity. The opening end of the ventilation tube is arranged on one side of the bottom shell of the wall fan base. The ventilation tube is connected to the pressure relief valve and the vacuum pump. The air suction inlet is arranged on the bottom surface of the bottom shell of the wall fan base. The vacuum tube includes a first port, a second port, a third port, and the branches where each port is located. The first port of the vacuum tube is connected to the air suction inlet. The second port of the vacuum tube is connected to the vacuum pump. The air outlet valve is arranged at the branch where the second port of the vacuum tube is located. The third port of the vacuum tube is connected to the ventilation tube through the pressure relief valve.

[0007] A sealing ring is arranged at the bottom of the bottom shell of the wall fan base. When the sealing ring is in contact with the wall surface, a cavity is formed between the wall fan and the wall surface.

[0008] The air outlet valve is a one-way valve.

[0009] The vacuum tube further includes a fourth port. A pressure sensor is also arranged in the base inner cavity. The pressure sensor is arranged at the fourth port of the vacuum tube.

[0010] The electric vacuum suction cup wall fan is provided with a control circuit board, and the control circuit board is arranged inside the upper cover of the wall fan base.

[0011] A filter screen is provided at the air suction port.

[0012] The upper cover of the wall fan base and the bottom shell of the wall fan base are installed and connected by buckles or screws.

[0013] A battery compartment is further provided in the inner cavity of the base.

[0014] The beneficial effects of the present utility model are as follows: The present utility model is fixed to the wall surface through a vacuum suction cup, which is much more firmly fixed and more convenient to disassemble than an ordinary suction cup type wall fan, and can be fixed as long as the wall surface is not particularly pitted, greatly increasing the usage scenarios compared to an ordinary suction cup type wall fan. Description of the Drawings

[0015] Figure 1 It is a structural diagram when an electric vacuum suction cup wall fan adsorbs on the wall surface;

[0016] Figure 2 It is a hydraulic diagram of the internal structure of an electric vacuum suction cup wall fan.

[0017] In the figure: 1, wall fan body; 2, upper cover of wall fan base; 3, bottom shell of wall fan base; 4, inner cavity of base; 5, air suction port; 6, vacuum pump; 7, air outlet valve; 8, pressure relief valve; 9, vacuum tube; 901, first port; 902, second port; 903, third port; 904, fourth port; 10, ventilation tube; 11, pressure sensor; 12, battery compartment; 13, control circuit board; 14, sealing ring; 15, cavity. Detailed Embodiments

[0018] The following combines the attached Figure 1 and the attached Figure 2 to describe the structure and usage method of the present utility model.

[0019] An electric vacuum suction cup wall fan, the structure of the wall fan includes a wall fan body 1 and a wall fan base. The wall fan base includes a wall fan base housing and the internal structure of the wall fan. The upper cover 2 of the wall fan base and the bottom shell 3 of the wall fan base constitute the wall fan base housing, and the wall fan body 1 is installed above the upper cover 2 of the wall fan base. The wall fan base housing includes an inner cavity 4 of the base, and the internal structure of the electric vacuum suction cup wall fan is provided in the inner cavity 4 of the base. The vacuum adsorption function of the wall fan depends on the internal structure to achieve. The air suction port 5 is arranged on the bottom surface of the bottom shell 3 of the wall fan base, and external air is inhaled into the internal structure of the electric vacuum suction cup wall fan through the air suction port 5.

[0020] The internal structure of the electric vacuum suction cup wall fan includes a vacuum pump 6, an air outlet valve 7, a pressure relief valve 8, a vacuum tube 9, and a ventilation tube 10. The ventilation tube 10 is in communication with the external space, and the open end of the ventilation tube 10 is provided on one side of the bottom shell 3 of the wall fan base. The ventilation tube 10 is connected to the pressure relief valve 8 and the vacuum pump 6. The vacuum tube 9 is a passage for the air inhaled at the air suction port 5 to flow towards the vacuum pump 6. The vacuum tube 9 includes four ports and respective branch segments corresponding to each port. The first port 901 of the vacuum tube 9 is connected to the air suction port 5, and the second port 902 of the vacuum tube 9 is connected to the vacuum pump 6. The air outlet valve 7 is a one-way valve, and the air outlet valve 7 is used to prevent the gas at the vacuum pump 6 from flowing back to the air suction port 5. The air outlet valve 7 is provided at the branch segment where the second port 902 of the vacuum tube 9 is located. The pressure relief valve 8 is a solenoid valve, which is used to conduct the air at the ventilation tube 10 to the air suction port 5 and the vacuum tube 9 when disassembling the electric vacuum suction cup wall fan, so that the interior of the electric vacuum suction cup wall fan is released from the vacuum state. The pressure relief valve 8 is provided at the junction of the third port 903 of the vacuum tube and the ventilation tube 10. As a preference of the present utility model, the pressure relief valve 8 is also a one-way valve.

[0021] A sealing ring 14 is provided at the bottom of the bottom shell 3 of the wall fan base. When the sealing ring 14 is in contact with the wall surface, a cavity 15 is formed between the bottom shell 3 of the wall fan base and the wall surface. After the vacuum pump 6 operates to pump vacuum, the cavity 15 will be in a vacuum state. The setting of the sealing ring 14 greatly reduces the inflow of external air after the wall fan is installed.

[0022] The internal structure of the electric vacuum suction cup wall fan further includes a pressure sensor 11, and the pressure sensor 11 is provided at the fourth port 904 of the vacuum pump 6. The pressure sensor 11 is used to receive and send out the vacuum pressure signal in the vacuum tube 9. The vacuum signal includes an upper limit vacuum signal and a lower limit vacuum signal, and the vacuum signal is used to control the operating state of the vacuum pump 6 after the wall fan is installed.

[0023] The electric vacuum suction cup wall fan is provided with a control circuit board 13, and the control circuit board 13 is provided inside the upper cover 2 of the wall fan base. The control circuit board 13 includes: physical buttons, a vacuum pump control circuit, and a fan control circuit. The physical buttons include a power button, a vacuum pump button, and other function buttons. When the power button is long-pressed for three seconds, the wall fan body 1 starts to rotate and work, and both the vacuum pump control circuit and the fan control circuit are in a standby state. When the vacuum pump button is activated, the vacuum pump control circuit starts to operate independently, and the vacuum pump needs to be double-clicked to be turned off. The other function buttons are used to control the fan control circuit, and the functions that can be controlled include swing, wind type, timing, negative ions, etc. There are also buttons and circuits for controlling the pressure relief valve 8 on the control circuit board 13.

[0024] A filter screen is provided at the air suction port 5. The filter screen is provided to prevent foreign objects from being sucked in when the vacuum pump 6 works, and to avoid malfunctions when the vacuum pump 6 works.

[0025] The upper cover 2 of the wall fan base is connected to the bottom shell 3 of the wall fan base by snap fasteners or screws.

[0026] A battery compartment 12 is provided inside the inner cavity of the base. During daily use, the electric vacuum suction wall fan is powered by ordinary alternating current. When a power outage occurs, the battery compartment 12 can be used to supply emergency power to the wall fan body 1 and other electronic devices inside the electric vacuum suction wall fan.

[0027] The following introduces the installation and disassembly methods of the present invention:

[0028] Press the sealing ring 14 tightly against the wall surface to ensure that a cavity is formed between the bottom shell 3 of the wall fan base and the wall surface. At this time, click the vacuum pump button provided on the control circuit board 13 to start the vacuum pump 6. When the vacuum pump 6 starts, the pressure relief valve 8 remains in a normally closed state. Air enters the vacuum tube 9 from the air suction port 5 and is unidirectionally pumped into the vacuum pump 6 through the air outlet valve 7, and finally is led out of the electric vacuum suction wall fan through the ventilation pipe 10. The continuous operation of the vacuum pump 6 gradually makes the cavity and the vacuum tube 9 vacuum. When the required vacuum value is reached, the pressure sensor 11 receives an upper limit vacuum value signal and suspends the operation of the vacuum pump 6. When the pressure sensor 11 senses that the vacuum value is lower than the lower limit vacuum value, the vacuum pump 6 restarts to compensate for the required vacuum degree. Thus, the cavity 15 formed between the bottom shell 3 of the wall fan base and the wall surface after installation can maintain a certain vacuum degree, so that the electric vacuum suction wall fan can be stably fixed on the wall surface.

[0029] When removing the installation, first, double-click the vacuum pump button on the control circuit board 13 to turn off the vacuum pump 6. Then, open the pressure relief valve 8 through the control circuit board 13. At this time, external air enters the vacuum tube 9 and the cavity 15 through the ventilation pipe 10 until the pressure inside the cavity 15 is balanced with the external pressure. At this time, the wall fan is released from the vacuum fixed state and can be freely disassembled from the wall surface.

[0030] The above content describes the structure, main embodiments and advantages of the present invention. It should be noted that the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the technical solutions of the present invention, or the concept and technical solutions of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention. The protection scope required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vacuum suction cup wall fan, characterized in that: Its structure includes a wall fan body (1), an upper cover of the wall fan base (2), a bottom shell of the wall fan base (3), an air suction port (5), a vacuum pump (6), an air outlet valve (7), a pressure relief valve (8), a vacuum tube (9), and a ventilation tube (10). The wall fan body (1) is installed above the upper cover of the wall fan base (2). The upper cover of the wall fan base (2) and the bottom shell of the wall fan base (3) are connected to form a wall fan base housing. The wall fan base housing includes a base inner cavity (4). The vacuum pump (6) is arranged in the base inner cavity (4). The open end of the ventilation tube (10) is arranged on one side of the bottom shell of the wall fan base (3). The ventilation tube (10) is connected to the pressure relief valve (8) and the vacuum pump (6). The air suction port (5) is arranged on the bottom surface of the bottom shell of the wall fan base (3). The vacuum tube (9) includes a first port (901), a second port (902), a third port (903), and the branches where each port is located. The first port (901) of the vacuum tube (9) is connected to the air suction port (5). The second port (902) of the vacuum tube (9) is connected to the vacuum pump (6). The air outlet valve (7) is arranged at the branch where the second port (902) of the vacuum tube (9) is located. The third port (903) of the vacuum tube (9) is connected to the ventilation tube (10) through the pressure relief valve (8).

2. The electric vacuum suction cup wall fan according to claim 1, wherein: A sealing ring (14) is provided at the bottom of the bottom shell of the wall fan base. When the sealing ring (14) is in contact with the wall surface, a cavity (15) is formed between the bottom shell of the wall fan base (3) and the wall surface.

3. The electric vacuum suction cup wall fan according to claim 1, characterized in that: The air outlet valve (7) is a one-way valve.

4. The electric vacuum suction cup wall fan according to claim 1, wherein: The vacuum tube (9) further includes a fourth port (904). A pressure sensor (11) is also arranged in the base inner cavity (4). The pressure sensor (11) is arranged at the fourth port (904) of the vacuum tube (9).

5. The electric vacuum suction cup wall fan according to claim 1, characterized in that: The electric vacuum suction wall fan is provided with a control circuit board (13). The control circuit board (13) is used to control the wall fan body (1) and the vacuum pump (6). The control circuit board (13) is arranged inside the upper cover of the wall fan base (2).

6. The electric vacuum suction cup wall fan according to claim 1, characterized in that: A filter screen is provided at the air suction port (5).

7. The electric vacuum suction cup wall fan according to claim 1, characterized in that: The upper cover of the wall fan base (2) and the bottom shell of the wall fan base (3) are installed and connected by snap fasteners or screws.

8. The electric vacuum suction cup wall fan according to claim 1, characterized in that: A battery compartment (12) is also arranged in the base inner cavity (4).

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