Dust collector floor brush controlled to start and stop by air pressure

Abstract

A dust collector floor brush capable of being started and stopped under air pressure control comprises a floor brush body (1), an air duct (11) is arranged in the floor brush body (1), one end of the air duct (11) is opened in the bottom face of the floor brush and serves as a dust collection port (111), and the other end of the air duct (11) is an air outlet (112) connected with a dust collection pipe. The floor brush is characterized in that the floor brush body (1) is provided with a load, a power supply (2) for supplying power to the load and an air pressure sensor (3) electrically connected with the load; a turning section (113) is arranged in the air duct (11); the air pressure sensor (3) is provided with an air pressure detection end (31), and the air pressure detection end (31) is arranged in the turning section (113), so that the load is controlled to start and stop according to the change of the measured air pressure value. According to the utility model, the load synchronously works along with the starting and stopping of the host, the working stability of the load is ensured, the use is convenient, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of vacuum cleaners, in particular to a vacuum cleaner floor brush with air pressure controlled start and stop. Background Art

[0002] The vacuum cleaner floor brush is equipped with a load (such as an LED, a motor, or a UV lamp). In order to power these loads, there are two traditional methods:

[0003] First, an independent power supply and physical switch are set on the floor brush, and the vacuum cleaner host and the floor brush need to be operated separately when turning on or off, which is cumbersome;

[0004] The second is to connect the load on the floor brush to the main unit of the vacuum cleaner with a wire. The wire needs to pass through the movable connection between the floor brush nozzle and the vacuum tube. The line is very long and the cost is high. In addition, the conductive joint at the movable connection is easily damaged, which affects the reliability of the vacuum cleaner. Summary of the invention

[0005] The utility model aims to provide a vacuum cleaner floor brush with air pressure controlled start and stop, which is convenient for operation and improves the reliability of load work on the floor brush.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a vacuum cleaner floor brush with air pressure controlled start and stop, comprising a floor brush body, an air duct is arranged in the floor brush body, one end of the air duct is open on the bottom surface of the floor brush as a dust suction port, and the other end is an air outlet connected to the dust suction pipe; the floor brush body is provided with a load, a power supply for supplying power to the load and an air pressure sensor electrically connected to the load; a turning section is arranged in the air duct; the air pressure sensor has an air pressure detection end, which is placed in the turning section, and the load start and stop operation is controlled by the change of the measured air pressure value.

[0007] In the above scheme, the turning section of the air duct turns on an upper and lower vertical plane, and the turning section has a large diameter side wall and a small diameter side wall on the upper and lower vertical plane. The air pressure detection end of the air pressure sensor is located at the large diameter side wall.

[0008] In the above solution, the cross-sectional size of the turning section of the air duct is smaller than the front section and the rear section of the air duct, so that the turning section becomes a necking portion.

[0009] In the above solution, the power source is a battery, which is arranged inside the floor brush body.

[0010] In the above solution, the air pressure sensor is arranged outside the air duct, and its air pressure detection end is connected to the air duct through a pipeline.

[0011] In the above solution, a brush is provided at the bottom of the floor brush body.

[0012] In the above solution, a roller is provided at the bottom of the floor brush body.

[0013] In the above solution, the turning angle of the turning section is 90° to 130°.

[0014] The effects of the utility model are:

[0015] The utility model arranges an independent power supply in the floor brush to supply power to the load, and controls the opening and closing of the load by detecting the air pressure change in the air duct of the floor brush through an air pressure sensor; in particular, a turning section with an angle of 90° to 120° is designed in the air duct. Due to the existence of the turning section, as long as the vacuum cleaner host is started, no matter when the floor brush is attached to the ground and the dust suction port is blocked by the ground, or when the floor brush is lifted and the dust suction port is open, the turning section in the air duct can reach a negative pressure state, and the negative pressure state measured by the air pressure sensor controls the start-up of the load. Only when the vacuum cleaner host is turned off, the negative pressure state at the turning section in the air duct will disappear and the load will stop working, thereby achieving a working state in which the load is opened and closed synchronously with the host, ensuring the stability of the load operation, being easy to use, and having a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the full cross-section structure of an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0018] In the above picture:

[0019] 1. floor brush body; 11. air duct; 111. dust suction port; 112. air outlet; 113. turning section; 1131. large diameter side wall; 1132. small diameter side wall;

[0020] 2. Power supply;

[0021] 3. Air pressure sensor; 31. Air pressure detection terminal;

[0022] 4. Lighting lamp;

[0023] 5. PCBA circuit board. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Example: See Figure 1-2 As shown:

[0026] A vacuum cleaner floor brush with air pressure controlled start and stop comprises a floor brush body 1, wherein a brush and a roller are arranged at the bottom of the floor brush body 1.

[0027] See also Figure 1-2As shown, the floor brush body 1 is provided with an air duct 11, one end of the air duct 11 is open on the bottom surface of the floor brush as a dust suction port 111, and the other end is an air outlet 112 connected to a dust suction pipe.

[0028] See also Figure 1-2 As shown, the floor brush body 1 is provided with a load, a power supply 2 for supplying power to the load, and an air pressure sensor 3 electrically connected to the load. Specifically, the load is a lighting lamp 4, which is arranged at the front end side of the floor brush body 1 and irradiates forward. In practice, the load can also be a motor driving the brush on the floor brush, or a UV lamp, and the load can be added to the floor brush body 1 according to actual needs.

[0029] See also Figure 1 As shown, a turning section 113 with an angle of ɑ is provided in the air duct 11. Specifically, ɑ can be 90° to 130°, and is 110° as an example in the figure. The setting of the turning section 113 makes it easier for the air duct 11 to form negative pressure at the turning section 113.

[0030] See also Figure 1-2 As shown, the turning section 113 of the air duct 11 turns on an upper and lower vertical plane, and the turning section 113 has a large diameter side wall 1131 and a small diameter side wall 1132 on the upper and lower vertical plane. The main body of the air pressure sensor 3 is arranged outside the air duct 11, and the air pressure sensor 3 has an air pressure detection end 31, which is connected to the large diameter side wall 1131 by an air pipe to detect the turning section 113 in the air duct, especially the air pressure inside the large diameter side wall 1131.

[0031] See also Figure 1-2 As shown, the air pressure sensor 3 is electrically connected to a PCBA circuit board 5, and the power supply 2 and the load are also electrically connected to the PCBA circuit board 5. The load is turned on and off according to the change of the air pressure value measured by the air pressure sensor 3. Usually, the air pressure value measured by the air pressure sensor 3 is compared with a preset threshold value to control the connection or disconnection of the power supply of the load. The circuit on the PCBA circuit board 5 is a prior art and is very easy to implement.

[0032] See also Figure 1 As shown, the cross-sectional size of the turning section 113 of the air duct 11 is smaller than the front section and the rear section of the air duct 11, so that the turning section 113 becomes a constricted neck, and the negative pressure at the turning section 113 is stronger.

[0033] See also Figure 1-2 As shown, the power source 2 is a battery, which is arranged inside the floor brush body 1. Figure 1-2 In the example shown, the battery is located at the front of the floor brush.

[0034] In this embodiment, an independent power supply 2 is set in the floor brush 1 to supply power to the load, and the air pressure change in the air duct 11 is detected by the air pressure sensor 3 to control the opening and closing of the load; in particular, a turning section 113 with an angle of 90° to 120° is designed in the air duct 11. Due to the existence of the turning section 113, as long as the vacuum cleaner host is started, no matter when the floor brush is placed on the ground and the suction port 111 is blocked by the ground, or when the floor brush is lifted and the suction port 111 is open, the turning section 113 in the air duct 11 can reach a negative pressure state. The negative pressure state measured by the air pressure sensor 3 controls the start-up of the load. Only when the vacuum cleaner host is turned off, the negative pressure state at the turning section 113 in the air duct 11 disappears and the load stops working, thereby achieving the synchronization of the load with the opening and closing of the host, ensuring the stability of the load operation, convenient use, and simple structure.

[0035] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A vacuum cleaner floor brush with air pressure controlled start and stop, comprising a floor brush body (1), wherein an air duct (11) is provided inside the floor brush body (1), wherein one end of the air duct (11) is open on the bottom surface of the floor brush as a dust suction port (111), and the other end is an air outlet (112) connected to a dust suction pipe; characterized in that: The floor brush body (1) is provided with a load, a power source (2) for supplying power to the load, and an air pressure sensor (3) electrically connected to the load; A turning section (113) is provided in the air duct (11); The air pressure sensor (3) has an air pressure detection end (31), which is disposed in the turning section (113) and controls the opening and closing of the load by changes in the measured air pressure value.

2. The vacuum cleaner floor brush with air pressure control start and stop according to claim 1, characterized in that: The turning section (113) of the air duct (11) turns on an upper and lower vertical plane, and the turning section (113) has a large-diameter side wall (1131) and a small-diameter side wall (1132) on the upper and lower vertical plane, and the air pressure detection end (31) of the air pressure sensor (3) is located on the large-diameter side wall (1131).

3. The air pressure controlled start and stop vacuum cleaner floor brush according to claim 1 or 2, characterized in that: The cross-sectional dimensions of the turning section (113) of the air duct (11) are smaller than the front section and the rear section of the air duct (11), so that the turning section (113) becomes a neck portion.

4. The vacuum cleaner floor brush with air pressure control start and stop according to claim 1, characterized in that: The power source (2) is a battery, which is arranged inside the floor brush body (1).

5. The vacuum cleaner floor brush with air pressure control start and stop according to claim 1, characterized in that: The air pressure sensor (3) is arranged outside the air duct (11), and its air pressure detection end (31) is connected to the air duct (11) through a pipeline.

6. The vacuum cleaner floor brush with air pressure control start and stop according to claim 1, characterized in that: A brush is provided at the bottom of the floor brush body (1).

7. The vacuum cleaner floor brush with air pressure control start and stop according to claim 1, characterized in that: A roller is provided at the bottom of the floor brush body (1).

8. The vacuum cleaner floor brush with air pressure control start and stop according to claim 1, characterized in that: The turning angle of the turning section (113) is 90° to 130°.

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