Replaceable brush head

Abstract

To provide a brush with replaceable brush head, which has a simple brush structure, allows quick replacement of different brush heads, and is adaptable to various cleaning situations. [Solution] A brush with replaceable brush head includes a handle (1), a brush head (2), and a positioning member (3), with a connecting groove at the top of the brush head, an engagement groove at the edge of the connecting groove, a connecting protrusion at the bottom of one end of the handle that matches the connecting groove, an engagement portion on the connecting protrusion that matches the engagement groove, a first positioning hole in the handle, a second positioning hole in the brush head that passes through and corresponds to the first positioning hole, and the positioning member passes from the first positioning hole to the second positioning hole to lock the handle and brush head together. The handle and brush head form a certain angle, so that the angle of the brush head fits more closely to the cleaning surface when cleaning.

Description

[Technical Field]

[0001] The present invention relates to the field of cleaning tools, and more particularly to a brush with replaceable brush heads. [Background technology]

[0002] With the advancement of science and technology and the improvement of quality of life, users' requirements for cleaning brushes are becoming more and more diverse. However, the cleaning brush products currently on the market cannot fully meet these requirements. The main problems are as follows:

[0003] First, conventional cleaning brushes generally have a structural design in which the bristles are connected perpendicularly to the handle. This means that when cleaning special areas such as narrow gaps or corners, the angle of the handle restricts the worker's posture, and the bristles at the tip of the brush body have difficulty contacting the cleaning area, resulting in a low utilization rate of the bristles.

[0004] In addition, most of the current common cleaning brushes have a structure in which the brush head and handle are fixed as one unit, and when the brush head wears out after long-term use, it has to be discarded as a whole, which is not economical. Currently, there are some products with replaceable brush heads, but they have a complicated structural design and the operation of replacing the brush head is cumbersome. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION The present invention aims to provide a brush with replaceable brush heads that solves the problems mentioned in the background art above. [Means for solving the problem]

[0006] In order to solve the above problems, the technical solutions adopted by this invention are as follows:

[0007] A brush with a replaceable brush head, comprising a handle, a brush head, and a position control member, wherein a connecting groove is provided on the top of the brush head, an engaging groove is provided on the edge of the connecting groove, a connecting protrusion that matches the connecting groove is provided on the bottom of one end of the handle, and an engaging portion that matches the engaging groove is provided on the connecting protrusion, a first position control hole is provided in the handle, and a second position control hole that passes through the brush head and corresponds to the first position control hole, and the position control member passes from the first position control hole to the second position control hole to lock the handle and brush head together.

[0008] Furthermore, the handle includes a connection head and a grip portion, and a connection protrusion that matches the connection groove is provided at the bottom of the connection head, and the first position restriction hole is provided in the connection head.

[0009] Furthermore, a first arc-shaped recess is provided at the top of one end of the grip portion near the connecting head, and several anti-slip protrusions are provided on the surface of the first arc-shaped recess, and a second arc-shaped recess is provided below the grip portion.

[0010] Furthermore, the grip portion extends at an angle upward relative to the axis of the connection head.

[0011] Furthermore, a connection hole is provided at one end of the grip portion away from the connection head.

[0012] Furthermore, the position control member includes a connecting base at the top end and a position control rod at the bottom, the position control rod passes from the first position control hole to the second position control hole, a position control arc is provided on the position control rod, and a position control dot matching the position control arc is provided on the side wall of the first position control hole.

[0013] Furthermore, operation members are provided on both sides of the connection base, and anti-slip ridges are provided on the outer surfaces of the operation members.

[0014] Furthermore, a position restricting protrusion block is provided at the bottom of the position restricting rod, and a position restricting surface that matches the position restricting protrusion block is provided within the first position restricting hole and below the position restricting dot.

[0015] Furthermore, the brush head includes a brush plate and brush bristles, the side of the brush plate is surrounded by a rubber protective ring, and the brush bristles are planted on the underside of the brush plate.

[0016] Furthermore, the brush head is triangular or strip-shaped. [Effects of the Invention]

[0017] The brush structure of this invention is simple, the handle is detachably connected to the brush head, and different brush heads can be quickly replaced to accommodate various cleaning situations. The handle and the brush head form a certain angle, so that the angle of the brush head fits more closely to the cleaning surface when cleaning. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a schematic diagram of the overall structure of the first embodiment of the present invention; [Figure 2] FIG. 1 is a side view of the first embodiment of the present invention. [Figure 3] FIG. 2 is a bottom view of the first embodiment of the present invention. [Figure 4] FIG. 1 is an exploded view of the first embodiment of the present invention. [Figure 5] 1 is a cross-sectional view of a brush head and a connecting head according to a first embodiment of the present invention. [Figure 6] 1 is a schematic diagram of a portion of the structure of Example 1 of the present invention; [Figure 7] FIG. 2 is a schematic diagram of the overall structure of the second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] In the description of the present embodiment, the orientations or positional relationships indicated by terms such as "upper" and "lower" are based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships in which the products of the present invention are typically disposed during use. These terms are merely used to facilitate or simplify the description of the present invention and do not necessarily indicate or imply that the devices or elements referred to have a specific orientation or that they must be configured or operated in a specific orientation, and therefore should not be understood as limitations on the present invention. Furthermore, unless otherwise clearly specified or limited, terms such as "attach" and "connect" should be understood broadly. For example, they may refer to fixed connection, detachable connection, integral connection, direct connection, indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] Furthermore, unless otherwise specified, all components used in the following examples are conventional components, and the corresponding connection methods can also be realized by conventional technical means, and will not be further described in this application. The present invention will be described in more detail below with reference to the drawings and specific embodiments. [Example]

[0021] This embodiment provides a brush with a replaceable brush head, and as shown in Figures 1 to 6, it includes a handle 1, a brush head 2, and a position control member 3, a connecting groove 23 is provided on the top of the brush head 2, an engaging groove 25 is provided on the edge of the connecting groove 23, a connecting protrusion 17 that matches the connecting groove 23 is provided on the bottom of one end of the handle 1, and an engaging portion 18 that matches the engaging groove 25 is provided on the connecting protrusion 17, a first position control hole 15 is provided in the handle 1, a second position control hole 24 that passes through the brush head 2 and corresponds to the first position control hole 15, and the position control member 3 passes from the first position control hole 15 to the second position control hole 24 to lock the handle 1 and the brush head 2 together.

[0022] Specifically, the brush in this embodiment includes a brush head 2 and a handle 1 that are removably connected, and the brush head 2 and the handle 1 are locked together by a position restricting member 3. A connecting protrusion 17 at the bottom of one end of the handle 1 has the same shape as a connecting groove 23 on the top surface of the brush head 2, allowing the connecting protrusion 17 to be positioned within the connecting groove 23, and an engaging groove 25 at the edge of the connecting groove 23 can be engaged with an engaging portion 18 at the edge of the connecting protrusion 17, which is specifically a protrusion extending outward from the connecting protrusion 17. This connection forms a preliminary connection between the handle 1 and the brush head 2. After the handle 1 and the brush head 2 are connected, the first position restricting hole 15 and the second position restricting hole 24 are aligned vertically, and the position restricting member 3 is inserted through the first position restricting hole 15 until its bottom end is positioned within the second position restricting hole 24, thereby achieving a double lock between the handle 1 and the brush head 2, ensuring the strength of the connection and preventing unintentional detachment during use.

[0023] Preferably, the handle 1 includes a connecting head 12 and a grip 11, one end of the connecting head 12 is connected to the brush head 2 and the other end of the connecting head 12 is connected to the grip 11, and the grip 11 extends at an angle upward relative to the axis of the connecting head 12, conforming to the natural gripping posture of the human body and preventing the tip of the brush head 2 from being unable to contact the cleaning surface due to restrictions on the handle 1 when cleaning. The bottom of the connecting head 12 is provided with a connecting protrusion 17 that matches the connecting groove 23, and the connecting head 12 is provided with a first position restriction hole 15, so that when the connecting head 12 is connected to the brush head 2, the first position restriction hole 15 and the second position restriction hole 24 pass through correspondingly from above and below, facilitating the insertion and connection of the position restriction member 3.

[0024] Preferably, a first arc-shaped recess 13 is provided at the top of one end of the grip 11 near the connecting head 12 to fit snugly to the contours of the hand, improving user comfort, and several anti-slip protrusions are provided on the surface of the first arc-shaped recess 13 to increase the friction between the hand and the handle 1, preventing slippage and improving stability during cleaning. Three second arc-shaped recesses 16 are provided below the grip 11 to fit snugly around the other fingers, allowing the user to hold the handle more securely and preventing the handle 1 from moving when applying pressure.

[0025] Preferably, a connection hole 14 is provided at one end of the grip portion 11 away from the connection head 12, through which the grip portion 11 can be hung directly on a hook or connected to a hanging string, making it easy to store.

[0026] Preferably, the position restricting member 3 includes a connecting base 31 at the top and a position restricting rod 33 at the bottom, which provide a force point for inserting and removing the connecting base 31 and the position restricting member 3. The position restricting rods 33 extend from the first position restricting hole 15 to the second position restricting hole 24, preventing the engaging portion 18 of the handle 1 from disengaging from the engaging groove 25 during movement. The position restricting rod 33 is provided with at least two position restricting arcs 35, each semicircular. The side wall of the first position restricting hole 15 is provided with position restricting dots matching the position restricting arcs 35, each semicircular. The position restricting dots are in close contact with the position restricting arcs 35, improving the reliability of locking the position restricting rod 33 and preventing unintentional disengagement of the position restricting rod 33, ensuring the stability of the connection between the handle 1 and the brush head 2.

[0027] Preferably, operating members 32 to be gripped by the fingers extend outward on both sides of the connecting base 31, making it easy to insert and remove the position control member 3, and anti-slip ridges are provided on the outer surface of the operating member 32 to increase the friction between the fingers and the operating member 32, allowing the operating member to be gently gripped and operated even when the hands are wet or in a damp state, improving operating efficiency.

[0028] Preferably, a position limiting protrusion block 34 extending outward is provided at the bottom of the position limiting rod 33, and a position limiting surface 19 matching the position limiting protrusion block 34 is provided within the first position limiting hole 15 and below the position limiting dot. Specifically, the first position limiting hole 15 has two diameters from top to bottom, with the upper diameter being relatively narrow and matching the distance between the two position limiting rods 33, and the lower diameter being relatively wide, and the distance between the position limiting protrusion blocks 34 being greater than the relatively narrow upper diameter. Therefore, when the position limiting rod 33 is pulled out upward, it can only move to the position limiting surface 19, i.e., the connection point of the diameter hole, and the position limiting member 3 does not need to be detached from the handle 1, thereby preventing it from being lost.

[0029] Preferably, the brush head 2 includes a brush plate 21 and brush bristles (not shown), with a rubber protective ring 22 surrounding the side of the brush plate 21 to reduce the hardness of the edge of the brush plate 21 and prevent scratches on the surface to be cleaned. Brush bristles are attached to the underside of the brush plate 21 for easy cleaning.

[0030] Preferably, the brush head 2 is triangular, which can clean more blind spots and improve the cleaning efficiency.

[0031] The process for installing and replacing the brush head is as follows.

[0032] The fingers grasp the operating member 32 to position the position limiting rod 33 within the first position limiting hole 15, and then gradually push the connecting protrusion 17 at the bottom of the connecting head 12 along the opening of the connecting groove 23 without going beyond the surface of the connecting head 12, until the engaging portion 18 engages with the engaging groove 25. After the connecting protrusion 17 is entirely positioned within the connecting groove 23, the fingers grasp the operating member 32 and move the position limiting rod 33 into the second position limiting hole 24. When the brush head 2 needs to be replaced, the operating member 32 is grasped to move the position limiting member 33 upward and away from the second position limiting hole 24, and the connecting protrusion 17 of the connecting head 12 is gradually extended outward and away from the connecting groove 23, and the appropriate brush head 2 can be selected and installed again according to the steps above. [Example]

[0033] As shown in Figure 7, the brush in this embodiment is different from that in Example 1 in the shape of the brush head 2. The brush head 2 in this embodiment has a strip shape, which allows it to be used in a wider variety of cleaning situations.

[0034] Although the present specification describes embodiments of the present invention, these embodiments are merely illustrative and do not limit the scope of protection of the present invention. Various omissions, substitutions, and modifications made within the scope of the present invention shall be included within the scope of protection of the present invention. [Explanation of symbols]

[0035] 1 handle 11 Grip 12 Connection Head 13 First arc-shaped recess 14 Connection hole 15 First position control hole 16 Second circular arc recess 17 Connecting protrusion 18 Engagement part 19 Location Restriction Surface 2 brush heads 21 Brush plate 22 Rubber protection ring 23 Connecting groove 24 Second position control hole 25 Engagement groove 3 Position control member 31 Connection stand 32 Operating member 33 Position control rod 34 Position control protrusion block 35 Position control arc

Claims

1. A brush with a replaceable brush head, comprising a handle, a brush head, and a position control member, wherein a connecting groove is provided on the top of the brush head, an engaging groove is provided on the edge of the connecting groove, a connecting protrusion that matches the connecting groove is provided on the bottom of one end of the handle, and an engaging portion that matches the engaging groove is provided on the connecting protrusion, a first position control hole is provided on the handle, and a second position control hole that passes through the brush head and corresponds to the first position control hole, and the position control member passes from the first position control hole to the second position control hole to lock the handle and brush head together.

2. The brush head replaceable brush described in claim 1, characterized in that the handle includes a connecting head and a grip portion, the bottom of the connecting head has a connecting protrusion that matches the connecting groove, and the connecting head has the first positional restriction hole.

3. The brush head replaceable brush as described in claim 2, characterized in that a first arc-shaped recess is provided at the top of one end of the grip portion close to the connecting head, several anti-slip protrusions are provided on the surface of the first arc-shaped recess, and a second arc-shaped recess is provided below the grip portion.

4. 3. The brush with replaceable brush head according to claim 2, wherein the grip portion extends at an upward incline relative to the axis of the connection head.

5. 3. The brush with replaceable brush head according to claim 2, wherein a connection hole is provided at one end of the grip portion away from the connection head.

6. The brush head replaceable brush described in claim 1, characterized in that the position control member includes a connecting base at the top end and a position control rod at the bottom, the position control rod passes from a first position control hole to a second position control hole, a position control arc is provided on the position control rod, and a position control dot matching the position control arc is provided on the side wall of the first position control hole.

7. 7. The brush with replaceable brush head according to claim 6, wherein the connecting base is provided with operating members on both sides thereof, and the operating members are provided with anti-slip ridges on their outer surfaces.

8. A brush with replaceable brush head as described in claim 6, characterized in that a position control protrusion block is provided at the bottom of the position control rod, and a position control surface matching the position control protrusion block is provided within the first position control hole and below the position control dot.

9. The brush head replaceable brush as described in claim 1, characterized in that the brush head includes a brush plate and brush bristles, a rubber protective ring is surrounded on the side of the brush plate, and brush bristles are planted on the underside of the brush plate.

10. 2. The brush with replaceable brush head according to claim 1, wherein the brush head is triangular or strip-shaped.

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