Double-rolling-brush acarus killing instrument

Abstract

The utility model discloses a double-rolling-brush acarus killing instrument, which belongs to the field of cleaning electric appliances, solves the problem that a user uses the acarus killing instrument with great effort, and adopts the technical scheme that the acarus killing instrument mainly comprises a machine body, a control circuit board, an air suction motor, a fan, a garbage can, a first motor, a first rolling brush, a second motor and a second rolling brush, the control circuit board is electrically connected with and supplies power to the air suction motor, the air suction motor is used for driving the fan to rotate so that negative pressure can be generated in the dustbin, the first motor is used for driving the first rolling brush, the second motor is used for driving the second rolling brush, and the first rolling brush and the second rolling brush are distributed front and back. The first motor and the second motor are distributed on the other side of the center face, and the air suction motor is located between the first motor and the second motor in the front-back direction of the machine body. The utility model is mainly used for enabling a user to use more conveniently in a more labor-saving manner.

Description

Technical Field

[0001] The utility model relates to a cleaning appliance, in particular to a double-roller-brush mite removal device. Background Art

[0002] The existing double-roller brush mite removal device, such as CN217987443U discloses a double-roller brush bed cleaning device, comprising a body shell 100, a filter dust cup 200 with a built-in filter assembly disposed on the body shell 100, and a suction motor. Figure 4 It can be known that the suction motor is arranged behind the second roller brush 2 and is perpendicular to the two roller brushes. For another example, CN217447557U discloses a mite removal device, including a cleaning component, the cleaning component including a shell 1, a first roller brush 2 and a second roller brush 3, a first accommodating chamber 11 and a second accommodating chamber 12 are formed inside the shell 1, the first accommodating chamber 11 and the second accommodating chamber 12 are spaced apart and arranged in parallel along the length direction of the cleaning component, the first accommodating chamber 11 forms a first cleaning port 13 at the bottom of the shell 1, the second accommodating chamber 12 forms a second cleaning port 14 at the bottom of the shell 1, the first cleaning port 13 and the second cleaning port 14 are spaced apart and arranged in parallel, the first roller brush 2 is accommodated in the first accommodating chamber 11, the second roller brush 3 is accommodated in the second accommodating chamber 12, the cleaning component also includes a negative pressure exhaust system arranged in the shell 1, the negative pressure exhaust system is respectively connected to the first accommodating chamber 11 and the second accommodating chamber 12. The negative pressure exhaust system actually includes a suction motor, which is described in the appendix of its specification. Figure 1 , 2 It can be foreseen that the suction motor is also arranged behind the second roller brush 3 and is perpendicular to the two roller brushes.

[0003] It can be seen that in the prior art, the suction motor in the double-roller mite removal device is basically arranged backward relative to the two roller brushes, which will cause the center of gravity of the double-roller mite removal device to move backward, and the gravity of the suction motor will generate a torque relative to the center of gravity of the double-roller mite removal device, which will easily cause the front end of the double-roller mite removal device to tilt upward, causing the first roller brush to leave the surface to be cleaned. In order to achieve better dust and mite removal effects, the mite removal device generally requires a roller brush to pat the surface to be cleaned. Therefore, in order to ensure better dust and mite removal effects, the user needs to use force to overcome the gravity of the suction motor to lift the suction motor during use, thereby solving the problem of the front end of the double-roller mite removal device tilting upward, which makes it more difficult for the user to operate. Utility Model Content

[0004] The purpose to be achieved by the utility model is to provide a double-roller brush mite removal device, which solves the problem that users have to use it laboriously and makes it more labor-saving and convenient for users to use.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double roller brush mite removal device, including a body and a control circuit board arranged on the body, a suction motor, a fan, a trash can, a first motor, a first roller brush, a second motor and a second roller brush, the control circuit board is electrically connected to the suction motor and powered by it, the suction motor is used to drive the fan to rotate to generate negative pressure in the trash can, the first motor is used to drive the first roller brush, the second motor is used to drive the second roller brush, the first roller brush and the second roller brush are distributed front and back, based on the center plane of the body width, the suction motor is located on one side of the center plane, the first motor and the second motor are distributed on the other side of the center plane, and in the front and rear direction of the body, the suction motor is located between the first motor and the second motor.

[0006] After adopting the above technical scheme, the utility model has the following advantages: by designing the suction motor to be located on one side of the central plane, and the first motor and the second motor to be distributed on the other side of the central plane, the gravity of the first motor and the second motor can be used to balance the gravity of the suction motor, so that the center of gravity of the double-roller brush mite removal device is as centered as possible, and can even fall on the central plane. At the same time, the suction motor is located between the first motor and the second motor, so that the center of gravity of the suction motor is located between the first roller brush and the second roller brush, and no lever effect is formed to cause the first roller brush or the second roller brush to tilt up. The center of gravity of the double-roller brush mite removal device can be located between the first roller brush and the second roller brush. Finally, the center of gravity of the double-roller brush mite removal device can be made as close to the center of the body as possible, or even located in the center of the body, thereby improving the self-stability of the double-roller brush mite removal device. When the user places the double-roller brush mite removal device and uses the double-roller brush mite removal device, the first roller brush or the second roller brush will not tilt up, and the user can place it more freely and use it more labor-savingly. The first roller brush or the second roller brush can be kept close to the surface to be cleaned, which is also conducive to ensuring the dust removal and mite removal effect.

[0007] Furthermore, the trash bin is located on the other side of the center plane and above the first motor and the second motor. With the above technical solution, as the use time increases, the garbage in the trash bin increases, and the gravity will gradually increase. The first motor and the second motor can be used to balance the weight of the suction motor, which is conducive to fine-tuning the center of gravity of the double-roller brush mite removal device. At the same time, the trash bin and the suction motor are used for spatial balance, which can improve the appearance of the device.

[0008] Furthermore, the control circuit board is provided with a rectifier, the suction motor is an AC motor, the first motor and the second motor are DC motors, the stator coil of the suction motor is provided with a lead wire, the lead wire is electrically connected to the input end of the rectifier, and the output end of the rectifier is electrically connected to the first motor and the second motor respectively and supplies power. By adopting the above technical solution, the lead wire on the stator coil of an AC motor is rectified by a rectifier to supply power to the DC motor, and two or more DC motors can be driven and controlled at the same time, which greatly simplifies the control method of "one to many" DC motors. Each DC motor can control the duty cycle by driving the control circuit to control the speed and current to adapt to different working conditions, effectively reducing the design cost and ensuring the life of the AC motor, and having higher practicality. By controlling the current of the DC motor within a limited range, two or more DC motors can be driven to operate at low voltage at the same time. A sampling resistor can be set for each DC motor to sample the current flowing through it, and the drive control is performed through the MOS control circuit. For example, an upper limit current is set for each DC motor, and an initial duty cycle is set. When the torque load of the DC motor is too large, the speed can be reduced by reducing the duty cycle; when the torque of the DC motor is small, the speed can be increased by increasing the duty cycle; each DC motor is independently adjusted and controlled through current sampling to adapt to different working conditions; when the DC motor is blocked, the DC motor can be turned off in time to avoid shortening the life of the AC motor or even burning the AC motor due to excessive current of the DC motor.

[0009] Furthermore, the suction motor is located above the control circuit board and higher than the first motor and the second motor. With the above technical solution, the suction motor can be closer to the control circuit board, which can shorten the length of the wire connecting the two, which is conducive to reducing costs and making the overall structure more compact.

[0010] Furthermore, the rectifier is fixed to the front of the control circuit board, and the back of the control circuit board faces the suction motor. By adopting the above technical solution, the back of the control circuit board faces the suction motor, which can further shorten the distance between the suction motor and the control circuit board.

[0011] Furthermore, the output end of the rectifier is electrically connected to the first motor and the second motor respectively through connecting wires, and a wire clamping groove for positioning the connecting wires is provided in the body. The above technical solution is adopted to improve the reliability of the connecting wires.

[0012] Furthermore, the first motor is fixed above the first roller brush and is in driving connection with the first roller brush; and / or the second motor is fixed above the second roller brush and is in driving connection with the second roller brush. The above technical solution is adopted to avoid the width of the machine body being too large.

[0013] Furthermore, the machine body has a handle, which is symmetrical about the center plane of the machine body width, one end of the handle is connected to the top of the machine body and the connection position is higher than the suction motor, and the other end is connected to the rear of the machine body and the connection position is relatively backward relative to the second roller brush. The above technical solution allows the user to operate or lift the double roller brush mite removal device with a force close to or even through the center of gravity of the double roller brush mite removal device, reducing the torque generated by the force based on the center of gravity of the double roller brush mite removal device, making the operation smoother and more labor-saving.

[0014] Furthermore, the trash bin is provided with an air inlet, the body is provided with an air suction channel, the outlet of the air suction channel is located between the first motor and the second motor and is sealed and connected to the air inlet. By adopting the above-mentioned technical solution, the vibration generated by the air suction will be dispersed to the surroundings, which can reduce the influence of the vibration generated by the air suction on the first motor and the second motor. The first motor and the second motor are located on both sides of the outlet of the air suction channel, and the vibrations generated during operation can also offset each other partially, thereby reducing the influence of the vibration generated by the first motor and the second motor during operation on the sealing connection relationship between the outlet of the air suction channel and the air inlet, which is beneficial to the long-term reliability of the seal between the outlet of the air suction channel and the air inlet.

[0015] Furthermore, the bottom surface of the machine body is provided with a front air inlet and a rear air inlet, the first roller brush is installed above the front air inlet, the second roller brush is installed above the rear air inlet, and the front air inlet and the rear air inlet are both connected to the air suction channel. With the above technical solution, since the center of gravity of the double roller brush mite removal device will be as close to the center of the machine body as possible, or even located at the center of the machine body, the vibration effect generated by the front air inlet and the rear air inlet when air enters can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 This is an external schematic diagram of a double-roller brush mite removal device of the utility model;

[0018] Figure 2 This is an internal schematic diagram of a double-roller-brush mite removal device of the utility model;

[0019] Figure 3 It is a partial schematic diagram of a double-roller-brush mite removal device of the utility model;

[0020] Figure 4 It is a side view of a double-roller-brush mite removal device of the utility model;

[0021] Figure 5 It is a schematic diagram of a trash can in the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0024] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0025] like Figures 1 to 5 As shown, the utility model provides a double roller brush mite removal device, including a body 100 and a control circuit board 11, a suction motor 12, a fan 13, a trash can 14, a first motor 15, a first roller brush 16, a second motor 17 and a second roller brush 18 arranged on the body 100. The control circuit board 11 is electrically connected to the suction motor 12 and powered by electricity. The suction motor 12 is used to drive the fan 13 to rotate to generate negative pressure in the trash can 14. The first motor 15 is used to drive the first roller brush 16, and the second motor 17 is used to drive the second roller brush 18. The first roller brush 16 and the second roller brush 18 are distributed front to back. Based on the central plane of the width of the body 100, the suction motor 12 is located on one side of the central plane, and the first motor 15 and the second motor 17 are distributed on the other side of the central plane. In the front and rear direction of the body 100, the suction motor 12 is located between the first motor 15 and the second motor 17.

[0026] In the present invention, the first roller brush and the second roller brush are arranged front and back based on the user pushing the dual roller brush mite removal device forward. The first roller brush is arranged in front and the second roller brush is arranged in the back for the convenience of distinguishing the first roller brush and the second roller brush. Figure 1 and Figure 2 The center line M (dash-dotted line) in the figure can be determined by obtaining the width dimension W of the body 100 and then taking the midpoint value. By designing the suction motor 12 to be located on one side of the center plane, and the first motor 15 and the second motor 17 to be distributed on the other side of the center plane, the gravity of the first motor 15 and the second motor 17 can be used to balance the gravity of the suction motor 12, so that the center of gravity of the double-roller brush mite removal device is centered as much as possible, and can even fall on the center plane. At the same time, the suction motor 12 is located between the first motor 15 and the second motor 17, so that the center of gravity of the suction motor 12 is located between the first roller brush 16 and the second roller brush 18, and no lever effect is formed to cause the first roller brush 16 or the second roller brush 18 to tilt upward. , the center of gravity of the double-roller brush mite removal device can be located between the first roller brush 16 and the second roller brush 18, and finally the center of gravity of the double-roller brush mite removal device can be as close to the center of the machine body 100 as possible, or even located at the center of the machine body 100, thereby improving the self stability of the double-roller brush mite removal device. When the user places the double-roller brush mite removal device and uses the double-roller brush mite removal device, the first roller brush 16 or the second roller brush 18 will not be tilted up, and the user can place it more freely and use it more labor-savingly. The first roller brush 16 or the second roller brush 18 can be kept close to the surface to be cleaned, which is also beneficial to ensuring the dust removal and mite removal effect.

[0027] In one embodiment, the trash bin 14 can be designed to be located on the other side of the center plane and above the first motor 15 and the second motor 17. As the usage time increases, the garbage in the trash bin 14 increases, and the gravity will gradually increase. The first motor 15 and the second motor 17 can be used to balance the weight of the suction motor 12, which is beneficial for fine-tuning the balance of the center of gravity of the dual-roller brush mite remover. At the same time, the trash bin 14 and the suction motor 12 are used to achieve spatial balance, which can improve the aesthetic appearance of the body 100.

[0028] In the model that is connected to the mains through a power cord, the suction motor 12 is an AC motor, and in order to reduce production costs, the first motor 15 and the second motor 17 can be selected as DC motors. In order for the first motor 15 and the second motor 17 to obtain power and work normally, a rectifier 111 can be provided on the control circuit board 11, and the stator coil of the suction motor 12 is provided with a lead wire, which is electrically connected to the input end of the rectifier 111, and the output end of the rectifier 111 is respectively electrically connected to the first motor 15 and the second motor 17 and supplies power. The suction motor 12 is an AC motor, and the lead wire on the stator coil of an AC motor is rectified by the rectifier 111 to supply power to the DC motor. Two or more DC motors can be driven and controlled at the same time, which greatly simplifies the control method of "one-to-many" DC motors. Each DC motor can control the speed and current by controlling the duty cycle through the driving control circuit to adapt to different working conditions, effectively reducing the design cost and ensuring the life of the AC motor, and having higher practicality. By controlling the current of the DC motor within a limited range, two or more DC motors can be driven to operate at low voltage at the same time. A sampling resistor can be set for each DC motor to sample the current flowing through it, and the drive control is performed through the MOS control circuit. For example, an upper limit current is set for each DC motor, and an initial duty cycle is set. When the torque load of the DC motor is too large, the speed can be reduced by reducing the duty cycle; when the torque of the DC motor is small, the speed can be increased by increasing the duty cycle; each DC motor is independently adjusted and controlled through current sampling to adapt to different working conditions; when the DC motor is blocked, the DC motor can be turned off in time to avoid shortening the life of the AC motor or even burning the AC motor due to excessive current of the DC motor.

[0029] In one embodiment, the suction motor 12 can be designed to be located above the control circuit board 11 and higher than the first motor 15 and the second motor 17. The suction motor 12 can be closer to the control circuit board 11, and the length of the wire electrically connected between the two can be shortened, which is conducive to reducing costs and the overall structure can be more compact. The components of the control circuit board 11 are generally arranged on the front, and the pins of the components extend from the front to the back. The rectifier 111 can be fixed to the front of the control circuit board 11, so that the back of the control circuit board 11 faces the suction motor 12, which can further shorten the distance between the suction motor 12 and the control circuit board 11.

[0030] In one embodiment, the output end of the rectifier 111 is electrically connected to the first motor 15 and the second motor 17 respectively through the connecting wire 112. In order to improve the reliability of the connecting wire 112, a wire clamping groove 103 for positioning the connecting wire 112 can be provided in the body 100.

[0031] In order to prevent the width of the machine body 100 from being too large, the first motor 15 can be fixed above the first roller brush 16 and be transmission-connected to the first roller brush 16. Similarly, the second motor 17 can be fixed above the second roller brush 18 and be transmission-connected to the second roller brush 18. The transmission connection can adopt the common belt and pulley matching method, or the gear meshing method, etc., with high transmission efficiency and good control accuracy.

[0032] In order to facilitate user operation, the body 100 is generally designed to have a handle 101. Since the center of gravity of the dual-roller brush mite remover will be as close to the center of the body 100 as possible, or even located at the center of the body 100, it is more labor-saving to facilitate user operation. In one embodiment, the handle 101 is symmetrical about the center plane of the width of the body 100, one end of the handle 101 is connected to the top of the body 100 and the connection position is higher than the suction motor 12, and the other end is connected to the rear of the body 100 and the connection position is relatively backward relative to the second roller brush 18. This allows the user to operate or lift the dual-roller brush mite remover with the force applied to the handle 101 close to or even through the center of gravity of the dual-roller brush mite remover, thereby reducing the torque generated by the force based on the center of gravity of the dual-roller brush mite remover, making the operation smoother and more labor-saving.

[0033] The trash bin 14 is provided with an air inlet 141, and the body 100 is provided with an air suction channel. In one embodiment, the outlet 102 of the air suction channel is designed to be located between the first motor 15 and the second motor 17 and is sealed and connected to the air inlet 141. The vibration generated by the air suction will be dispersed to the surroundings, which can reduce the influence of the vibration generated by the air suction on the first motor 15 and the second motor 17. The first motor 15 and the second motor 17 are located on both sides of the outlet 102 of the air suction channel, and the vibrations generated during operation can also offset each other in part, thereby reducing the influence of the vibration generated by the first motor 15 and the second motor 17 during operation on the sealed connection relationship between the outlet 102 of the air suction channel and the air inlet 141, which is beneficial to the long-term reliability of the seal between the outlet 102 of the air suction channel and the air inlet 141.

[0034] In addition, the bottom surface of the machine body 100 is provided with a front air inlet and a rear air inlet, the first roller brush 16 is installed above the front air inlet, the second roller brush 18 is installed above the rear air inlet, and the front air inlet and the rear air inlet are both connected to the air suction channel. Since the center of gravity of the double roller brush mite removal device will be as close as possible to the center of the machine body 100, or even located at the center of the machine body 100, the vibration effect generated when the front air inlet and the rear air inlet are inlet can be reduced.

[0035] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A double roller brush mite removal device, comprising a body and a control circuit board arranged on the body, a suction motor, a fan, a trash bin, a first motor, a first roller brush, a second motor and a second roller brush, the control circuit board is electrically connected to the suction motor and powered, the suction motor is used to drive the fan to rotate to generate negative pressure in the trash bin, the first motor is used to drive the first roller brush, the second motor is used to drive the second roller brush, the first roller brush and the second roller brush are distributed front and back, and is characterized in that: Based on the center plane of the body width, the suction motor is located on one side of the center plane, the first motor and the second motor are distributed on the other side of the center plane, and in the front and rear direction of the body, the suction motor is located between the first motor and the second motor.

2. The double roller brush mite removal device according to claim 1, characterized in that: The trash box is located on the other side of the central plane and above the first motor and the second motor.

3. The double roller brush mite removal device according to claim 1, characterized in that: A rectifier is provided on the control circuit board, the suction motor is an AC motor, the first motor and the second motor are DC motors, the stator coil of the suction motor is provided with a lead-out wire, the lead-out wire is electrically connected to the input end of the rectifier, and the output end of the rectifier is electrically connected to the first motor and the second motor respectively and supplies power.

4. The double roller brush mite removal device according to claim 3, characterized in that: The air suction motor is located above the control circuit board and is higher than the first motor and the second motor.

5. The double roller brush mite removal device according to claim 4, characterized in that: The rectifier is fixed on the front side of the control circuit board, and the back side of the control circuit board faces the suction motor.

6. The double roller brush mite removal device according to claim 3, characterized in that: The output end of the rectifier is electrically connected to the first motor and the second motor respectively through connecting wires, and a wire clamping groove for positioning the connecting wires is provided in the machine body.

7. The double-roller brush mite removal device according to claim 1, characterized in that: The first motor is fixed above the first roller brush and is transmission-connected to the first roller brush; and / or the second motor is fixed above the second roller brush and is transmission-connected to the second roller brush.

8. The double roller brush mite removal device according to claim 1, characterized in that: The body has a handle, which is symmetrical about the central plane of the body width. One end of the handle is connected to the top of the body and the connection position is higher than the suction motor, and the other end is connected to the rear of the body and the connection position is relatively backward relative to the second roller brush.

9. The double roller brush mite removal device according to claim 1, characterized in that: The dustbin is provided with an air inlet, the machine body is provided with an air suction channel, the outlet of the air suction channel is located between the first motor and the second motor and is sealed and connected to the air inlet.

10. The double roller brush mite removal device according to claim 9, characterized in that: The bottom surface of the machine body is provided with a front air suction port and a rear air suction port, the first roller brush is installed above the front air suction port, and the second roller brush is installed above the rear air suction port, and the front air suction port and the rear air suction port are both connected to the air suction channel.

Images