Elbow brush with brush head capable of being rotatably replaced

Abstract

The elbow brush comprises a handle and the brush head, the brush head comprises a clamping section connected with the end of the handle and a shell section inserted into the outer side of the clamping section, an assembling assembly is arranged at the connecting position of the clamping section and the handle, and the shell section is connected with the clamping section in an inserted mode. The assembling assembly comprises a column body arranged at the end of the handle, and clamping blocks are arranged at the top and the bottom of the column body. When the brush head needs to be replaced, only the handle is rotated to enable the clamping block to be screwed away from the short edge of the L-shaped hole, a traditional single pulling and inserting structure is changed into pulling out after rotation in the whole process, the handle and the brush head are separated easily, and people with small strength can also rapidly complete replacement of the brush head; according to the brush, the end of the whole brush head and the handle form a certain angle, a user can use the brush body at some corners or gaps which are difficult to touch, cleaning or smearing can be efficiently completed, the flexibility is high, and use is convenient.

Description

Technical Field

[0001] This utility model specifically relates to a curved brush with a rotatable and replaceable brush head. Background Technology

[0002] A brush is a tool used for cleaning or applying products. It usually consists of a handle and a head. The head can be made of natural materials (such as hair, bristles, or feathers) or artificial materials (such as plastic or wire). The main purpose of a brush is to remove dirt or apply ointments or oils. Brushes are generally long or oval in shape. Different types of brushes are suitable for different tasks. Choosing the right brush can improve work efficiency and quality.

[0003] Currently, brushes are usually either one-piece or two-piece. One-piece brushes cannot be replaced when the brush head is damaged, resulting in higher usage costs. While two-piece brushes can be used to remove the brush head more quickly, they are mostly plug-in designs. Although this design is sturdy, it is difficult for people with less strength to separate the brush head from the handle, making it difficult to quickly assemble and disassemble the brush head and handle. Replacing the brush head also becomes difficult, making them less convenient to use.

[0004] Therefore, it is necessary to invent a curved brush with a rotatable and replaceable brush head to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a curved brush with a rotatable and replaceable brush head. When it is necessary to replace the brush head, simply rotate the handle to make the locking block disengage from the short side of the L-shaped hole. The entire process changes the traditional single plug-in structure to a rotation and pull-out mechanism, making it easy to separate the handle from the brush head. Even people with less strength can quickly replace the brush head. Furthermore, through the bending setting of the locking section, the entire end of the brush head is at a certain angle to the handle. Users can use the brush body in some hard-to-reach corners or crevices, thereby efficiently completing cleaning or coating. It has high flexibility and is easy to use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a curved brush with a rotatable and replaceable brush head, including a handle and a brush head;

[0009] The brush head includes a snap-fit ​​section connected to the end of the handle and a housing section inserted into the outside of the snap-fit ​​section;

[0010] An assembly component is provided at the connection between the engaging section and the handle. The assembly component includes a column at the end of the handle. The top and bottom of the column are provided with locking blocks, and the side of the locking block away from the engaging section has a locking groove.

[0011] The assembly assembly also includes a hole located at the end of the engaging section for inserting the column, L-shaped holes distributed at the top and bottom of the hole, and a protrusion located on the short side of the L-shaped hole and adapted to the slot. The brush head and the handle are screwed into or out of the slot through the protrusion, so as to realize the rotational assembly or separation of the brush body for replacing the brush head.

[0012] Preferably, the end of the engaging section near the outer shell section is recessed, and at least one positioning rib is provided around that end.

[0013] The middle part of the engaging section is bent in the direction of any one of the L-shaped holes.

[0014] Preferably, the outer shell section has an insertion hole at one end near the engaging section for insertion of the engaging section end. The inner wall of the outer shell section at the insertion hole has a positioning groove surrounding the insertion hole for accommodating positioning ribs. The number of positioning grooves is equal to the number of positioning ribs. Brush bristles are also installed on the end of the outer shell section away from the handle.

[0015] Preferably, the long sides of the two L-shaped holes are distributed along the length direction of the engaging section, and the short side openings of the two L-shaped holes are oriented clockwise towards the hole.

[0016] Preferably, the long side openings of the two L-shaped holes are offset from the vertical symmetry plane of the holes in a counterclockwise direction, and the two protrusions are located at the center of the short side of the two L-shaped holes respectively.

[0017] Preferably, the outer surfaces of both protrusions are arc-shaped, and the slots are adapted to the protrusions.

[0018] Preferably, the outer side of the handle is provided with an anti-slip groove, and the inside of the anti-slip groove is provided with an anti-slip flange that is adapted to the handle.

[0019] Preferably, the anti-slip flange is integrally formed with the handle, or is a rubber sheet pasted inside the anti-slip groove.

[0020] Preferably, a hanging hole is provided at the end of the handle away from the engaging section, and several reinforcing ribs are provided on the outer side of the outer shell section.

[0021] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0022] 1. This utility model provides a post at the end of the brush handle that fits into the hole of the engaging section that makes up the brush head. This allows the brush handle to be inserted into the brush head. After the post is inserted, the rotation of the brush handle causes the locking block to rotate as well. This causes the two protrusions to be screwed into the slots on the locking block, thus limiting and fixing the handle and the engaging section, completing the assembly of the brush body. When the brush head needs to be replaced, simply rotate the handle in the opposite direction to make the locking block rotate away from the short side of the L-shaped hole, and the handle can be pulled out to remove the brush head. This allows the new brush head to be assembled on the handle. The whole process changes the traditional single plug-in structure to a rotation and pull-out structure, ensuring the brush body is secure while making it easy to separate the handle from the brush head. Even people with less strength can quickly replace the brush head.

[0023] 2. This new invention uses a snap-fit ​​bending design to make the entire brush head end and the handle form a certain angle. Users can use the brush body in some hard-to-reach corners or crevices. It changes the traditional pen-holding method. Users can directly hold the handle and push the bristles up and down to use it, thereby efficiently completing cleaning or coating. It is highly flexible and easy to use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a perspective view of the present utility model;

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

[0028] Figure 4 This is an exploded view of the engaging section and the outer shell section of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Handle, 2. Brush head, 3. Connecting section, 4. Outer shell section;

[0031] 51. Column, 52. Block, 53. Slot, 54. Hole, 55. L-shaped hole, 56. Protrusion;

[0032] 6. Positioning ribs, 7. Insertion holes, 8. Positioning channels, 9. Brush bristles, 10. Anti-slip grooves, 11. Anti-slip flanges, 12. Hanging holes, 13. Reinforcing ribs. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figure 1-4 The illustrated curved brush with a rotatable and replaceable brush head includes a handle 1 and a brush head 2.

[0035] The brush head 2 includes a locking section 3 connected to the end of the handle 1, and a housing section 4 inserted into the outside of the locking section 3;

[0036] An assembly component is provided at the connection between the engaging section 3 and the handle 1. The assembly component includes a column 51 provided at the end of the handle 1. The top and bottom of the column 51 are provided with locking blocks 52. The locking block 52 has a locking groove 53 on the side away from the engaging section 3.

[0037] The assembly assembly also includes a hole 54 located at the end of the engaging section 3 for inserting the column 51, L-shaped holes 55 distributed at the top and bottom of the hole 54, and a protrusion 56 located on the short side of the L-shaped hole 55 and adapted to the slot 53. The brush head 2 and the handle 1 are screwed into or out of the slot 53 through the protrusion 56 to realize the rotational assembly or separation of the brush body to replace the brush head 2.

[0038] The middle part of the engaging section 3 is bent in the direction of any one of the L-shaped holes 55.

[0039] In one embodiment, the end of the engaging section 3 near the outer shell section 4 is recessed and has at least one positioning rib 6 surrounding that end. The end of the outer shell section 4 near the engaging section 3 has an insertion hole 7 for insertion of the engaging section 3. The inner wall of the outer shell section 4 at the insertion hole 7 has a positioning groove 8 surrounding the insertion hole 7 to accommodate the positioning rib 6. The number of positioning grooves 8 and positioning ribs 6 is equal, so that the engaging section 3 and the outer shell section 4 can be inserted and removed through the positioning ribs 6 and positioning grooves 8. This allows for easy testing by testers during the brush body's manufacturing process. When the user uses the brush, they can decide whether to retain the engaging section 3 or the outer shell section 4 according to their needs, making assembly more diverse and usage more flexible. The end of the outer shell section 4 away from the handle 1 is also equipped with bristles 9 for cleaning dirt or applying ointment.

[0040] In one embodiment, the long sides of the two L-shaped holes 55 are distributed along the length direction of the engaging section 3, and the openings of the short sides of the two L-shaped holes 55 face the clockwise direction of the hole 54. When the handle 1 is rotated, the two locking blocks 52 can be screwed into the corresponding short side of the L-shaped hole 55. The openings of the long sides of the two L-shaped holes 55 are offset from the vertical symmetry plane of the hole 54 in the counterclockwise direction. The two protrusions 56 are located at the center of the short sides of the two L-shaped holes 55, so that after the handle 1 and the brush head 2 are rotated and engaged, the locking blocks 52 are bisected by the vertical symmetry plane of the hole 54. That is, the angle of the handle 1 and the brush head 2 is suitable for user habits and convenient for users to use. The outer surfaces of the two protrusions 56 are both set as arcs, and the slots 53 are adapted to the protrusions 56, so that the protrusions 56 can be engaged into the slots 53. The brush body is easy to disassemble and assemble.

[0041] In one embodiment, the handle 1 has an anti-slip groove 10 on its outer side, and an anti-slip flange 11 adapted to the handle 1 is provided inside the anti-slip groove 10. The anti-slip flange 11 is integrally formed with the handle 1, or it is set as a rubber sheet pasted inside the anti-slip groove 10. This makes the handle 1 look better and makes it easier for workers to hold and use. At the same time, when the anti-slip flange 11 is a rubber sheet, the grip is better and the comfort of use is improved.

[0042] In one embodiment, a hanging hole 12 is provided at the end of the handle 1 away from the locking section 3, so that the brush body can be hung and stored when it is no longer in use, saving space and making it easy to organize. Several reinforcing ribs 13 are provided on the outer side of the outer shell section 4 to increase the strength of the brush body and improve its service life.

[0043] The specific implementation method is as follows: The anti-slip flange 11 of this utility model is set as a rubber sheet, or it is made of plastic material like the brush body. When in use, the staff can directly hold the brush handle and use the brush bristles 9 to pick up the coating liquid and apply it to the object. After long-term use, if the brush bristles 9 fall off, become messy, or the brush head 2 is worn and damaged, that is, when the brush head 2 needs to be replaced.

[0044] The worker holds the outer side of the outer shell section 4 with one hand and applies pressure to the outer side of the outer shell section 4. At this time, the locking section 3 inside the outer shell section 4 will remain in the same position. Then, the other hand rotates the handle 1 counterclockwise, so that the two locking blocks 52 are respectively rotated out of the short side of the L-shaped hole 55 under the action of external force. At this time, the protrusion 56 will be rotated out of the slot 53. When the locking block 52 is completely rotated away from the short side of the L-shaped hole 55, it will be inside the long side of the L-shaped hole 55. The worker can directly pull the handle 1 outward to separate the handle 1 from the locking section 3 and complete the separation of the handle 1 from the brush head 2.

[0045] The staff then aligned the post 51 at the end of the handle 1 with the hole 54 of the new brush head 2, and applied a pushing force to insert the post 51 into the hole 54. When the locking block 52 reached the opening of the short side of the L-shaped hole 55, the staff pinched the outer shell section 4 and rotated the brush handle clockwise. Due to the elastic deformation properties of the plastic material, the locking block 52 and the protrusion 56 collided and squeezed each other under the tightening force, and under the action of the tightening force, the locking block 52 and the protrusion 56 collided and squeezed each other, and under the action of the tightening force, the protrusion 56 and the slot 53 were aligned. The protrusion 56 and the locking block 52 no longer squeezed each other, and their shapes were restored. That is, the protrusion 56 was successfully inserted into the slot 53, which limited the locking section 3 and the handle 1, so that the handle 1 could not slide out of the locking section 3. The assembly of the handle 1 and the brush head 2 was completed, and the staff could continue to use the new brush body with the replacement brush head 2.

[0046] Furthermore, after assembly, the brush body is no longer a traditional single plug-in structure. Instead, through the design of the L-shaped hole 55, the handle 1 and the brush head 2 are no longer simply horizontally engaged. At this time, before separating the handle 1 and the brush head 2, it is necessary to rotate the handle 1 or the brush head 2 first, thus ensuring the reliability of the brush body. Rotation is also easier to apply force, allowing even people with less strength to quickly separate the handle 1 and the brush head 2. The replacement of the brush head 2 is also more convenient, thereby reducing the cost of use and avoiding unnecessary waste of resources.

[0047] Meanwhile, through the bending setting of the snap-fit ​​section 3, the entire end of the brush head 2 is at a certain angle to the handle 1, and the included angle is set to 15-90 degrees. In some scenarios such as toilets, sinks, ovens, or walls that require users to stand and paint, which have hard-to-reach corners or crevices, the brush body changes the traditional pen-holding method. It can be used by directly holding the handle 1 and pushing the bristles 9 up and down, thereby quickly completing cleaning or painting. It is highly flexible and convenient to use.

[0048] This embodiment specifically addresses the problem that existing brushes are typically either one-piece or two-piece designs. One-piece brushes cannot be replaced when the brush head 2 is damaged, resulting in high usage costs. While two-piece brushes can remove the brush head 2 more quickly, they often use a plug-in design. Although this design is sturdy, it makes it difficult for people with less strength to separate the brush head 2 from the handle, hindering the quick assembly and disassembly of the brush head 2 and the replacement of the brush head 2, thus making them inconvenient to use.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A swivel head replaceable elbow brush characterized by: It comprises a handle (1) and a brush head (2); The brush head (2) comprises a clamping section (3) connected with the end of the handle (1), and a shell section (4) inserted outside the clamping section (3); The clamping section (3) is provided with an assembling assembly at the connection with the handle (1), which comprises a column (51) arranged at the end of the handle (1), and clamping blocks (52) arranged at the top and bottom of the column (51), and a clamping groove (53) arranged at the side of the clamping blocks (52) away from the clamping section (3); The assembling assembly further comprises a hole (54) arranged at the end of the clamping section (3) for the insertion of the column (51), L-shaped holes (55) arranged at the top and bottom of the hole (54), and protrusions (56) arranged on the short sides of the L-shaped holes (55) and matched with the clamping groove (53), the brush head (2) is screwed into or out of the clamping groove (53) through the protrusions (56), so as to realize the rotational assembly of the brush body or the replacement of the brush head (2). The middle part of the clamping section (3) is integrally bent towards any one of the L-shaped holes (55).

2. A swivel head brush according to claim 1 wherein: The end of the clamping section (3) close to the shell section (4) is integrally sunk, and at least one positioning rib (6) is arranged around the end.

3. A swivel head brush according to claim 2, wherein: The end of the shell section (4) close to the clamping section (3) is provided with a insertion hole (7) for the insertion of the end of the clamping section (3), and a positioning groove (8) is arranged around the insertion hole (7) on the inner wall of the shell section (4) at the insertion hole (7) for accommodating the positioning rib (6), the number of the positioning groove (8) is equal to that of the positioning rib (6), and the end of the shell section (4) away from the handle (1) is further provided with bristles (9).

4. A swivel head brush according to claim 1 wherein: The long sides of the two L-shaped holes (55) are arranged along the length direction of the clamping section (3), and the openings of the short sides of the two L-shaped holes (55) are towards the clockwise direction of the hole (54).

5. A swivel head brush according to claim 1 wherein: The openings of the long sides of the two L-shaped holes (55) are deviated from the vertical symmetry plane of the hole (54) in the counterclockwise direction, and the two protrusions (56) are respectively located at the centers of the short sides of the two L-shaped holes (55).

6. A swivel head brush according to claim 1 wherein: The outer surfaces of the two protrusions (56) are arranged in arc shape, and the clamping groove (53) is matched with the protrusions (56).

7. A swivel head brush according to claim 1 wherein: The outer side of the handle (1) is provided with an anti-skid groove (10), and the anti-skid groove (10) is provided with an anti-skid flange (11) matched with the handle (1) inside.

8. A swivel head brush according to claim 7, wherein: The anti-skid flange (11) is integrally formed with the handle (1), or is arranged as a rubber sheet pasted inside the anti-skid groove (10).

9. A swivel head brush according to claim 1 wherein: The end of the handle (1) away from the clamping section (3) is provided with a hanging hole (12), and the outer side of the shell section (4) is provided with a plurality of reinforcing ribs (13).

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