A self-priming cleaning brush

Abstract

The utility model discloses a cleaning agent self -suction type cleaning brush, including the casing, the bottom rotation of casing is equipped with the brush head, and the top is equipped with the water outlet pipe of fixed setting, and the inside is equipped with the drive assembly of transmission connection with the brush head, the bottom of brush head is equipped with the water jet, the upper end of water outlet pipe is linked with outside inlet valve, and the lower extreme is passed through the casing and is set and is opposite water jet, and the side detachable connection has the jar for storing cleaning agent, be equipped with self -suction device in water outlet pipe, the jar is linked with water outlet pipe through self -suction device, and self -suction device is suitable for the cleaning agent in negative pressure suction jar, the utility model discloses the clean water and cleaning agent separate storage, and realize the automatic mixing of cleaning agent and clean water when using, guarantee the cleaning effect, make the cleaning agent have longer effective period, convenient for the user to use.

Description

Technical Field

[0001] This utility model relates to the field of cleaning brush technology, and in particular to a self-priming cleaning brush for cleaning agents. Background Technology

[0002] Electric cleaning brushes are convenient and quick cleaning tools, especially suitable for scrubbing various types of floors. They are typically powered by electricity, allowing for more efficient cleaning and saving manpower and time. Traditional electric cleaning brushes only have a single cleaning function using the brush head, requiring manual pre-wetting of the floor before use. Later, electric cleaning brushes with built-in water spray functions emerged. These brushes have a built-in liquid tank pre-filled with a cleaning solution mixed with detergent. A self-priming pump connects the brush head and the tank, and the pump is controlled by a button to spray the cleaning solution. However, with this type of electric cleaning brush, it's difficult to ensure the cleaning solution in the tank is completely used each time. The detergent mixes with water, and its active ingredients degrade over time, affecting cleaning effectiveness in subsequent uses. In hot weather, it can also deteriorate, requiring replacement. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-priming cleaning brush that stores water and cleaning agent separately and automatically mixes them during use. This ensures cleaning effectiveness while extending the shelf life of the cleaning agent and making it more convenient for users.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] A self-priming cleaning brush for detergent includes a housing, a brush head rotatably mounted at the bottom of the housing, a water outlet pipe fixed at the top, a drive assembly internally connected to the brush head, a spray nozzle at the bottom of the brush head, an upper end of the water outlet pipe connected to an external water inlet valve, a lower end penetrating the housing and positioned directly opposite the spray nozzle, and a container for storing detergent detachably connected to the side. A self-priming device is installed inside the water outlet pipe, and the container is connected to the water outlet pipe via the self-priming device. The self-priming device is adapted to draw detergent from the container using negative pressure.

[0006] Furthermore, the side wall of the water outlet pipe is provided with a through hole connecting to the tank body, and the lower end is provided with a variable diameter water outlet. The self-priming device is a Venturi tube coaxially arranged inside the water outlet pipe. The neck of the Venturi tube is provided with a suction port. The suction port is adapted to form a negative pressure by adjusting the diameter of the water outlet. Both the upper and lower parts of the suction port are provided with sealing rings that are sleeved on the Venturi tube and in sealing contact with the inner wall of the water outlet pipe. The through hole forms a passage with the suction port through the two sealing rings.

[0007] Furthermore, a tubular section is integrally formed inside the housing, and the lower end of the tubular section is provided with a deformable arc-shaped port. The water outlet pipe is inserted into the tubular section in an adjustable manner. The water outlet section includes a first water outlet and a second water outlet respectively located at the bottom and outer wall of the water outlet pipe. The diameter of the first water outlet is the same as the neck diameter of the Venturi tube. The upper and lower parts of the second water outlet are provided with sealing rings that are sleeved on the water outlet pipe and respectively seal against the inner walls of the tubular section and the arc-shaped port, forming a closed chamber. When the water outlet pipe moves upward, the arc-shaped port and the corresponding sealing ring are misaligned and separated, forming an annular gap, so that the second water outlet can communicate with the atmosphere.

[0008] Furthermore, the lower end of the water outlet pipe is sealed with a swivel nozzle, and the first water outlet is located on the swivel nozzle.

[0009] Furthermore, the tubular part is provided with an annular protrusion near the upper end, and the bottom of the arc-shaped port is provided with a liquid outlet facing the first water outlet. An annular space is formed between the annular protrusion and the water outlet pipe. The top of the housing is provided with an adjustment handle inserted into the annular space. The water outlet pipe passes through the adjustment handle and is threadedly connected to the adjustment handle. Rotating the adjustment handle drives the water outlet pipe to move up and down.

[0010] Furthermore, a hollow gear shaft is rotatably mounted on the outside of the tubular portion, and the drive assembly includes a rotary motor and a drive gear fixed to the output end of the rotary motor, the drive gear meshing with the hollow gear shaft.

[0011] Furthermore, the lower end of the hollow gear shaft is detachably provided with a connector, which engages with the brush head.

[0012] Furthermore, the outlet of the tank is connected to a valve head, which is a one-way valve, and the outlet of the one-way valve is directly opposite the through hole.

[0013] Furthermore, the through hole is provided with a male locking button integrally formed with the water outlet pipe, and the outlet of the tank is connected to a female locking button that is compatible with the male locking button. The female locking button is rotated and fastened on the male locking button, the valve head sealing sleeve is installed inside the male locking button, and the inner cavity of the female locking button is sealed with a transition joint for pressing the valve head.

[0014] Furthermore, the outlet of the tank body is provided with an integrally formed male connector, and the rear end of the female locking button is provided with an annular groove adapted to the male connector. The male connector is sealed and inserted into the annular groove, and its outer circumference is symmetrically provided with slots. The female locking button is provided with insertion holes corresponding to the slots, and a U-shaped pin is connected between the two insertion holes. The two free ends of the U-shaped pin are respectively inserted into the slots. By adopting the above technical solution, this utility model has the following beneficial effects:

[0015] (1) This utility model sets up a tank to store the cleaning agent separately, and stores the water and cleaning agent separately. At the same time, a self-priming device is set in the existing water outlet pipe to control the cleaning agent to be automatically added to the water to be sprayed when the water is sprayed, so as to achieve automatic mixing, ensure the cleaning effect, and make the cleaning agent have a longer shelf life and convenient for users.

[0016] (2) This utility model cleverly uses a venturi tube as a self-priming device. When a pressure difference is generated in the water outlet pipe, a negative pressure is naturally generated at the pipe neck, causing the detergent in the tank to flow into the venturi tube and achieve mixing with the clean water. The structure is simple and does not require a complex electrical control structure. It not only has low manufacturing cost, but also has a longer service life.

[0017] (3) The present invention is provided with a water outlet formed by a first water outlet and a second water outlet. By raising and lowering the water outlet pipe, the second water outlet is blocked or connected to the atmosphere, thereby realizing the change of the diameter of the water outlet and generating a pressure difference in the water outlet pipe, thereby realizing negative pressure suction at the liquid suction port.

[0018] (4) This utility model has a simple structure by setting an adjustment handle that is threadedly connected to the water outlet pipe, and rotating the handle to drive the water outlet pipe to move up and down.

[0019] (5) This utility model is easy to process and manufacture by adding a rotating nozzle.

[0020] (6) By adding a one-way valve to the outlet of the tank, the cleaning agent can only flow towards the venturi tube, thus preventing water from flowing back into the tank and shortening the shelf life of the cleaning agent in the tank.

[0021] (7) This utility model achieves quick connection between the tank and the water outlet pipe through male and female locking buttons, which is convenient for disassembly and assembly.

[0022] (8) This utility model achieves a detachable connection between the tank body and the female lock button by inserting a U-shaped pin into the socket and slot, realizing a split connection. The female lock button that is easily damaged can be replaced separately, saving maintenance costs.

[0023] (9) The present invention enables the brush head to be detached and installed through the connector, which facilitates replacement. Attached Figure Description

[0024] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This utility model Figure 2 Enlarged view of section A in the image;

[0028] Figure 4 This utility model Figure 2 Enlarged view of section B in the image;

[0029] Figure 5 This is a diagram showing the state of the water outlet pipe of this utility model when it rises.

[0030] The labels in the attached diagram are:

[0031] 1. Housing, 1-1. Tubular part, 1-1-1. Annular protrusion, 1-1-1. Arc-shaped port, 1-1-2. Brush head, 2. Spray nozzle, 2-1. Water outlet pipe, 3. Male locking button, 3-1. First water outlet, 3-2. Second water outlet, 3-3. Tank body, 4. Male connector, 4-1. Self-priming device, 5. Suction port, 5-1. Hollow gear shaft, 6. Connector, 7. Adjusting handle, 8. Pressure plate, 9. Female locking button, 10. Annular groove, 10-1. U-shaped pin, 11. Valve head, 12. Transition connector, 13. Detailed Implementation

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] (Example 1)

[0034] like Figures 1 to 5 The self-priming cleaning brush shown includes a housing 1, a brush head 2 rotatably mounted at the bottom of the housing 1, and a water outlet pipe 3 fixed at the top. An internal drive assembly is connected to the brush head 2. A water spray nozzle 2-1 is located at the bottom of the brush head 2. The upper end of the water outlet pipe 3 is connected to an external water inlet valve, and the lower end passes through the housing 1 and faces the water spray nozzle 2-1. A container 4 for storing cleaning agents is detachably connected to the side. A self-priming device 5 is installed inside the water outlet pipe 3. The container 4 is connected to the water outlet pipe 3 through the self-priming device 5. The self-priming device 5 uses negative pressure to draw the cleaning agent from the container 4, achieving a mixture of water and cleaning agent. This ensures cleaning effectiveness while allowing the cleaning agent to be stored separately, resulting in a longer shelf life and user convenience.

[0035] Specifically, the housing 1 has an integrally formed tubular section 1-1 for housing the water outlet pipe 3. A hollow gear shaft 6, located inside the housing 1, is rotatably mounted outside the tubular section 1-1. The drive assembly includes a rotary motor and a drive gear fixed to the output end of the rotary motor, which meshes with the hollow gear shaft 6. The lower end of the hollow gear shaft 6 extends outside the housing 1 and is detachably mounted with a connector 7 via a U-shaped retaining ring. The connector 7 is rotatably engaged with the brush head 2, achieving a detachable connection. This allows the drive assembly to rotate the brush head 2, and the brush head 2 can be replaced individually when it is severely worn.

[0036] The tubular part 1-1 has an annular protrusion 1-1-1 near its upper end and an arc-shaped port 1-1-2 at its lower end. An annular space is formed between the annular protrusion and the water outlet pipe 3. The top of the housing 1 is rotatably equipped with an adjusting handle 8 inserted into the annular space. The top of the adjusting handle 8 is equipped with a pressure plate 9 that restricts its axial movement. The water outlet pipe 3 passes through the adjusting handle 8 and is threadedly connected to it. The bottom of the arc-shaped port 1-1-2 is equipped with a liquid outlet. By rotating the adjusting handle 8, the water outlet pipe 3 is driven to move up and down within the tubular part 1-1. The lower end of the water outlet pipe 3 is sealed with a screw-on nozzle. A first water outlet 3-2 passes through the screw-on nozzle. A second water outlet 3-3 is symmetrically opened on the outer wall of the water outlet pipe 3 above it. Both the upper and lower parts of the second water outlet 3-3 are equipped with sealing rings that are fitted onto the water outlet pipe 3 and make sealing contact with the inner wall of the tubular part 1-1. The upper sealing ring is in sealing contact with the columnar inner wall of the tubular part 1-1, and the lower sealing ring is in sealing contact with the inner wall of the arc-shaped port 1-1-2, forming a closed chamber. At this time, the diameter of the water outlet is small. Rotating the adjusting handle 8 drives the water outlet pipe 3 to rise, and the lower sealing ring rises synchronously and moves to the columnar inner wall of the tubular part 1-1, thereby dislocating and separating from the inner wall of the arc-shaped port 1-1-2, forming an annular gap. At this time, the second water outlet 3-3 is connected to the atmosphere, and the diameter of the water outlet becomes larger, thus forming a variable diameter water outlet.

[0037] The side wall of the water outlet pipe 3 is provided with a through hole connecting to the tank body 4. A male locking button 3-1 integrally formed with the water outlet pipe 3 is provided at the through hole. The outlet of the tank body 4 is provided with an integrally formed male connector 4-1. The male connector 4-1 is fitted with a female locking button 10 that is compatible with the male locking button 3-1. The rear end of the female locking button 10 is provided with an annular groove 10-1 that is compatible with the male connector 4-1. The male connector 4-1 is sealed and inserted into the annular groove 10-1. The outer circumference is symmetrically provided with slots. The female locking button 10 is provided with a corresponding insertion hole. A U-shaped pin 11 is connected between the two insertion holes. The two free ends of the U-shaped pin 11 are respectively inserted into the slots to achieve a detachable connection. The front end of the female locking button 10 is rotated and fastened to the male locking button 3-1 to achieve quick assembly.

[0038] The self-priming device 5 is a venturi tube coaxially installed inside the outlet pipe 3. The venturi tube has a suction port 5-1 with a through hole at its neck. Both the upper and lower ends of the suction port are fitted with sealing rings that fit over the venturi tube and seal against the inner wall of the outlet pipe 3. The through hole forms a passage with the suction port 5-1 through the two sealing rings. The diameter of the first outlet 3-2 is the same as the neck diameter of the venturi tube, meaning the diameter of the first outlet 3-2 is the same as the smallest diameter inside the outlet pipe 3. Initially, the minimum diameter of the outlet pipe 3 is the same as the final outlet diameter, i.e., the first outlet 3-2. There is no pressure difference between these two diameters in the outlet pipe 3, and the detergent in the tank 4 cannot be sucked into the outlet pipe 3. When the second outlet 3-3 moves upward, it connects with the outside air through the annular gap. The minimum diameter of the outlet pipe 3 is smaller than the final outlet diameter, and a negative pressure is formed between these two diameters in the outlet pipe 3. At this time, the detergent in the tank 4 is sucked into the outlet pipe 3, achieving mixing with clean water. The structure is simple and does not require a complex electrical control structure, which not only reduces manufacturing costs but also extends service life.

[0039] The outlet of tank 4 is connected to a valve head 12. The valve head 12 is sealed within a male locking button 3-1. The male locking button 3-1 has a limiting step to restrict the movement of the valve head 12. The inner cavity of the female locking button 10 is sealed with a transition joint 13 to press the valve head 12, thus facilitating the installation of the valve head 12. The valve head 12 is a one-way valve, with its outlet directly facing the through-hole. This ensures that the cleaning agent can only flow towards the venturi tube, preventing backflow of clean water into the tank and shortening the shelf life of the cleaning agent inside.

[0040] This invention features a tank 4 for separately storing cleaning agents, separating water and cleaning agents. A self-priming device 5 is installed within the existing sprayable water pipe to automatically add the cleaning agent to the water being sprayed, achieving automatic mixing. This ensures effective cleaning while extending the cleaning agent's shelf life and making it more convenient for users.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-priming cleaning brush of a cleaning agent, characterized by: The device includes a housing, a brush head rotatably mounted at the bottom of the housing, a water outlet pipe fixed at the top, and a drive assembly internally connected to the brush head. The bottom of the brush head has a spray nozzle. The upper end of the water outlet pipe is connected to an external water inlet valve, and the lower end passes through the housing and faces the spray nozzle. A container for storing cleaning agent is detachably connected to the side. A self-priming device is installed inside the water outlet pipe, and the container is connected to the water outlet pipe through the self-priming device. The self-priming device is adapted to draw the cleaning agent in the container under negative pressure.

2. A self-priming cleaning brush according to claim 1, wherein: The side wall of the water outlet pipe is provided with a through hole connecting to the tank body, and the lower end is provided with a variable diameter water outlet. The self-priming device is a Venturi tube coaxially arranged inside the water outlet pipe. The neck of the Venturi tube is provided with a suction port. The suction port is adapted to form a negative pressure by adjusting the diameter of the water outlet. Both the upper and lower parts of the suction port are provided with sealing rings that are sleeved on the Venturi tube and in sealing contact with the inner wall of the water outlet pipe. The through hole forms a passage with the suction port through the two sealing rings.

3. A self-priming cleaning brush according to claim 2, wherein: The casing is integrally formed with a tubular section. The lower end of the tubular section has a deformable arc-shaped port. The water outlet pipe is inserted into the tubular section in an adjustable manner. The water outlet section includes a first water outlet and a second water outlet respectively located at the bottom and outer wall of the water outlet pipe. The diameter of the first water outlet is the same as the neck diameter of the Venturi tube. The upper and lower parts of the second water outlet are provided with sealing rings that are sleeved on the water outlet pipe and respectively seal against the inner walls of the tubular section and the arc-shaped port, forming a closed chamber. When the water outlet pipe moves upward, the arc-shaped port and the corresponding sealing ring are misaligned and separated, forming an annular gap, so that the second water outlet can communicate with the atmosphere.

4. A self-priming cleaning brush according to claim 3, wherein: The lower end of the water outlet pipe is sealed with a swivel nozzle, and the first water outlet is located on the swivel nozzle.

5. A self-priming cleaning brush according to claim 3, wherein: The tubular part has an annular protrusion near the upper end, and the bottom of the arc-shaped port has a liquid outlet facing the first water outlet. An annular space is formed between the annular protrusion and the water outlet pipe. The top of the housing has an adjustment handle inserted into the annular space. The water outlet pipe passes through the adjustment handle and is threadedly connected to the adjustment handle. Rotating the adjustment handle moves the water outlet pipe up and down.

6. A self-priming cleaning brush according to claim 3, wherein: A hollow gear shaft is rotatably mounted on the outside of the tubular part. The drive assembly includes a rotary motor and a drive gear fixed to the output end of the rotary motor. The drive gear meshes with the hollow gear shaft.

7. A self-priming cleaning brush according to claim 6, wherein: The lower end of the hollow gear shaft is detachably provided with a connector, which engages with the brush head.

8. A self-priming cleaning brush according to claim 2, wherein: The outlet of the tank is connected to a valve head, which is a one-way valve, and the outlet of the one-way valve is directly opposite the through hole.

9. A self-priming cleaning brush according to claim 8, wherein: The through hole is provided with a male locking button integrally formed with the water outlet pipe. The outlet of the tank is connected to a female locking button that is compatible with the male locking button. The female locking button is rotated and fastened on the male locking button. The valve head sealing sleeve is installed inside the male locking button. The inner cavity of the female locking button is sealed with a transition joint for tightening the valve head.

10. The self-priming cleaning brush of claim 9, wherein: The outlet of the tank is provided with an integrally formed male connector. The rear end of the female lock button is provided with an annular groove that matches the male connector. The male connector is sealed and inserted into the annular groove. The outer circumference is symmetrically provided with slots. The female lock button is provided with a socket corresponding to the slot. A U-shaped pin is connected between the two sockets. The two free ends of the U-shaped pin are respectively inserted into the slot.

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