Floor brush rotation limiting structure and floor brush having the same

Abstract

The present invention provides a floor brush rotation limiting structure, comprising a shell provided with a dust suction air duct, and a swivel joint installed on the shell and rotatable around the floor brush rotation axis; the bottom front edge of the swivel joint fits in a notch formed on the shell; the notch is a V-shaped structure, and the V-shaped structure includes a bottom end and slide rails extending from the bottom end to both sides; the bottom end of the V-shaped structure forms a limiting space to stop the bottom front edge of the swivel joint to limit the rotational movement of the swivel joint along the two movement directions of the slide rail. By setting a V-shaped structure, the present invention can automatically reset the floor brush with the help of a reset spring. After reset, the limiting structure can ensure that the floor brush is always in a straight line with the body; the present invention is convenient to use, saves labor costs, has a compact structure, and has low manufacturing costs.

Description

Technical Field

[0001] The invention relates to the field of cleaning tools, and in particular provides a floor brush rotation limiting structure and a vacuum cleaner having the same. Background Art

[0002] Vacuum cleaners are commonly used cleaning tools at home or in the workplace. Their working principle is to use an electric motor to drive the blades to rotate at high speed, generate negative air pressure in a sealed shell, and absorb dust. Existing vacuum cleaner floor brushes can swing back and forth and left and right at will. Although this method is more flexible, when using the floor brush to clean the carpet, due to the resistance of the carpet and the adsorption force of the floor brush, the floor brush will swing left and right and cannot move forward in a straight line. Therefore, the application range of the floor brush is limited and the different needs of users cannot be met.

[0003] However, the rotation or rotation of most floor brushes requires users to twist the machine by hand, which is very laborious. Moreover, after rotation, the floor brush cannot maintain a uniform straight line position with the body. When the user is using it, the floor brush will always be tilted, the cleaning efficiency is reduced, and it is time-consuming and labor-intensive, with a very poor experience.

[0004] Therefore, it is urgent to provide a lower-cost, simpler structure and method to achieve automatic rotation limit of the floor brush and always maintain a straight line position with the machine body, so as to make the machine more convenient and efficient in multi-angle movement and increase the cleaning area. Summary of the invention

[0005] One of the purposes of the present invention is to provide a floor brush rotation limiting structure which is simple and compact in structure, low in cost and easy to use.

[0006] A second object of the present invention is to provide a floor brush having the above-mentioned floor brush rotation limiting structure.

[0007] To achieve the above-mentioned purpose, on the one hand, an embodiment of the present invention discloses a floor brush rotation limit structure, comprising a housing provided with a dust suction air duct, and a swivel joint installed on the housing and rotatable around a floor brush rotation axis; the bottom front edge of the swivel joint is fitted in a notch formed on the housing;

[0008] The recess is a V-shaped structure, which includes a bottom end and slide rails extending from the bottom end to both sides; the bottom end of the V-shaped structure forms a limiting space for stopping the bottom front edge of the swivel joint to limit the rotational movement of the swivel joint along the two movement directions of the slide rails.

[0009] As a further improvement of the embodiment of the present invention, the housing is constructed as a floor brush rotating shaft sleeve column sleeved on the outer layer of the floor brush rotating shaft;

[0010] The outer part of the shell is formed with an arc wall surrounding the rotating shaft of the floor brush, and the front end of the arc wall forms the bottom front edge of the swivel joint matched with the notch.

[0011] As a further improvement of an embodiment of the present invention, the swivel joint includes a roller and a roller bracket supporting the roller;

[0012] The roller moves on the slide rail of the V-shaped structure and / or is clamped at the bottom end.

[0013] As a further improvement of the embodiment of the present invention, the swivel joint further includes a swivel assist assembly;

[0014] The slewing assist assembly includes an elastic component and an elastic component pressure plate;

[0015] The notch and the elastic component pressing plate are respectively fixedly arranged relative to the housing;

[0016] One end of the elastic component abuts against the elastic component pressure plate, and the other end abuts against the roller bracket. Under the action of the resetting force of the elastic component, the roller bracket drives the roller to move on the recess.

[0017] As a further improvement of the implementation mode of the present invention, the elastic component is a spring. When the floor brush is subjected to an external force and rotates clockwise, the roller moves along the slide rail close to the elastic component pressure plate, and the spring stores energy. When the external force disappears, the spring energy is released to move the roller away from the elastic component pressure plate until it is against the limiting space of the recess.

[0018] As a further improvement of an embodiment of the present invention, when the floor brush is rotated clockwise by an external force, the roller moves upward along the inclined surface of the V-shaped structure, and the spring is compressed to store energy; when the external force disappears, the spring is released, and the restoring force of the spring drives the roller bracket to drive the roller to move downward along the inclined surface, and stop at the bottom end of the V-shaped structure and remain in the limited space.

[0019] As a further improvement of the implementation manner of the present invention, a positioning hole is provided on the roller bracket, and one end of the elastic component is received in the positioning hole.

[0020] As a further improvement of the embodiment of the present invention, the swivel joint further includes a sleeve cooperating with the roller bracket to guide the roller bracket to reciprocate;

[0021] The sleeve is fixed on the floor brush rotating shaft sleeve column, and the roller bracket reciprocates in the sleeve.

[0022] As a further improvement of the implementation mode of the present invention, the sleeve and the floor brush rotating shaft sleeve column are an integrally formed structure.

[0023] On the other hand, an embodiment of the present invention further discloses a floor brush, comprising a floor brush body and a floor brush swivel joint rotatably connected to the floor brush body, wherein the floor brush swivel joint is further provided with the above-mentioned floor brush swivel limiting structure.

[0024] The present invention has the following beneficial effects:

[0025] The present invention provides a rotary device so that the floor brush can automatically reset with the help of a reset spring, and after resetting, the limiting structure can ensure that the floor brush is always in a straight line with the machine body; the present invention is easy to use, saves labor costs, has a compact structure, and has a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic implementation modes and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application; wherein:

[0027] Figure 1 is a structural schematic diagram of a floor brush rotation limiting structure involved in an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 Exploded diagram of the floor brush rotation limit structure;

[0029] 1-housing; 11-arc wall; 2-floor brush rotating shaft; 3-swivel joint; 31-roller; 32-roller bracket; 33-sleeve; 4-notch; 41-bottom end; 42-slide rail; 5-elastic component; 6-elastic component pressure plate. Specific embodiments

[0030] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in combination with the specific implementation methods of this application and the corresponding drawings. Obviously, the described implementation methods are only part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0034] like Figure 1 and Figure 2 As shown, the embodiment of the present invention discloses a floor brush rotation limiting structure, comprising a housing 1 provided with a dust suction air duct, and a swivel joint 3 installed on the housing 1 and rotatable around a floor brush rotation axis 2; the bottom front edge of the swivel joint 3 is fitted in a notch 4 formed on the housing 1;

[0035] The notch 4 is a V-shaped structure, which includes a bottom end 41 and slide rails 42 extending from the bottom end to both sides; the bottom end 41 of the V-shaped structure forms a limiting space for stopping the bottom front edge of the swivel joint 3 to limit the swivel movement of the swivel joint along the two movement directions of the slide rails 42.

[0036] Specifically, the housing 1 is constructed as a floor brush rotating shaft sleeve column sleeved on the outer layer of the floor brush rotating shaft 2;

[0037] The outer portion of the housing 1 is formed with an arc wall 11 surrounding the brush rotating shaft 2 , and the front end of the arc wall 11 forms the bottom front edge of the swivel joint 3 that matches the notch 4 .

[0038] The swivel joint 3 includes a roller 31 and a roller bracket 32 ​​supporting the roller 31;

[0039] The roller 31 moves on the V-shaped slide rail 42 and / or is clamped at the bottom end 41 .

[0040] The swivel joint 3 also includes a swivel assist assembly;

[0041] The slewing assist assembly includes an elastic component 5 and an elastic component pressure plate 6;

[0042] The notch 4 and the elastic component pressing plate 6 are respectively fixedly arranged relative to the housing 1;

[0043] One end of the elastic component 5 abuts against the elastic component pressure plate 6 , and the other end abuts against the roller bracket 32 ​​. Under the action of the restoring force of the elastic component 5 , the roller bracket 32 ​​is driven to drive the roller 31 to move on the notch 4 .

[0044] Among them, the elastic component 5 is a spring. When the floor brush is subjected to external force and rotates clockwise, the roller 31 moves along the slide rail 32 to approach the elastic component pressure plate 6, and the spring stores energy; when the external force disappears, the spring energy is released to make the roller 31 move away from the elastic component pressure plate 6 until it is against the limiting space of the recess 4.

[0045] In the embodiment of the present invention, when the floor brush is rotated clockwise by external force, the roller 31 moves upward along the inclined surface of the V-shaped structure, and the spring is compressed to store energy. When the external force disappears, the spring is released, and the restoring force of the spring drives the roller bracket 32 ​​to drive the roller 31 to move downward along the inclined surface and stop at the bottom end of the V-shaped structure and remain in the limited space.

[0046] In other achievable embodiments, a positioning hole is provided on the roller bracket 32 ​​, and one end of the elastic component 6 is received in the positioning hole.

[0047] The swivel joint 3 also includes a sleeve 33 that cooperates with the roller bracket 32 ​​to guide the roller bracket 32 ​​to reciprocate;

[0048] The sleeve 33 is fixed on the floor brush rotating shaft sleeve column, and the roller bracket 32 ​​reciprocates in the sleeve 33 .

[0049] In this embodiment, the sleeve 33 and the floor brush rotating shaft sleeve column are an integrally formed structure.

[0050] The embodiment of the present invention further discloses a floor brush, comprising a floor brush body and a floor brush swivel joint rotatably connected to the floor brush body, and the floor brush swivel joint is also provided with the above-mentioned floor brush swivel limiting structure.

[0051] The present invention has the following beneficial effects:

[0052] The present invention provides a rotary device so that the floor brush can automatically reset with the help of a reset spring, and after resetting, the limiting structure can ensure that the floor brush is always in a straight line with the machine body; the present invention is easy to use, saves labor costs, has a compact structure, and has a low manufacturing cost.

[0053] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0054] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A floor brush rotation limiting structure, characterized in that: It comprises a housing provided with a dust suction air duct, and a swivel joint installed on the housing and rotatable around a floor brush rotation axis; the bottom front edge of the swivel joint fits into a notch formed on the housing; The notch is a V-shaped structure, and the V-shaped structure includes a bottom end and slide rails extending from the bottom end to both sides; the bottom end of the V-shaped structure forms a limiting space for stopping the bottom front edge of the swivel joint to limit the swivel movement of the swivel joint along the two movement directions of the slide rails; wherein, The swivel joint comprises a roller and a roller bracket supporting the roller; The roller moves on the slide rail of the V-shaped structure and / or is clamped at the bottom end; The swivel joint also includes a swivel assist assembly; The slewing assist assembly includes an elastic component and an elastic component pressure plate; The notch and the elastic component pressing plate are respectively fixedly arranged relative to the housing; One end of the elastic component abuts against the elastic component pressure plate, and the other end abuts against the roller bracket, and under the action of the resetting force of the elastic component, the roller bracket drives the roller to move on the notch; The housing is constructed as a floor brush rotating shaft sleeve column sleeved on the outer layer of the floor brush rotating shaft; The outer part of the shell is formed with an arc wall surrounding the rotating shaft of the floor brush, and the front end of the arc wall forms the bottom front edge of the swivel joint matching with the notch; The elastic component is a spring. When the floor brush is rotated clockwise by an external force, the roller moves along the slide rail to approach the elastic component pressure plate, and the spring stores energy. When the external force disappears, the spring energy is released to make the roller move away from the elastic component pressure plate until it abuts against the limiting space of the notch. The roller bracket is provided with a positioning hole, and one end of the elastic component is received in the positioning hole; The swivel joint further comprises a sleeve cooperating with the roller bracket to guide the roller bracket to reciprocate; The sleeve is fixed on the floor brush rotating shaft sleeve column, and the roller bracket reciprocates in the sleeve.

2. The floor brush rotation limiting structure according to claim 1 is characterized in that: When the floor brush rotates clockwise by external force, the roller moves upward along the inclined surface of the V-shaped structure, and the spring is compressed to store energy. When the external force disappears, the spring is released, and the restoring force of the spring drives the roller bracket to drive the roller to move downward along the inclined surface and stop at the bottom end of the V-shaped structure and remain in the limited space.

3. The floor brush rotation limiting structure according to claim 2 is characterized in that: The sleeve and the floor brush rotating shaft sleeve column are an integrally formed structure.

4. A floor brush, comprising a floor brush body and a floor brush swivel joint rotatably connected to the floor brush body, characterized in that: The floor brush rotary joint is also provided with a floor brush rotary limiting structure as described in any one of claims 1 to 3.

Images