Toothbrush with replaceable brush head

Abstract

The utility model provides a toothbrush with a replaceable brush head, belongs to the field of toothbrushes, aims to solve the problem that the brush head of the toothbrush is inconvenient to disassemble and replace, and comprises an extension rod and a fixed rod, the fixed rod is arranged in the extension rod, and a second clamping rod is fixedly connected to a connecting plate. A limiting block is arranged; when the brush head is detached and replaced, a pull rod can be pulled to drive a connecting plate to move, the connecting plate can extrude a second spring when moving, meanwhile, the connecting plate can drive a second clamping rod to be separated from the brush head and retract into a limiting block, and when the brush head is not hindered, the brush head can be taken out of the limiting block in a sliding mode to be detached; when the replaced brush head is fixed, the brush head can be clamped on a limiting block in a sliding mode, a pull rod is loosened, a connecting plate and a second clamping rod are driven to reset under pushing of a second spring, the connecting plate can push the second clamping rod to be clamped in the brush head, limiting and fixing are conducted, and the situation that the replaced brush head falls off is avoided.

Description

Technical Field

[0001] The utility model relates to the field of toothbrushes, in particular to a toothbrush with a replaceable brush head. Background Art

[0002] A toothbrush is an essential tool for daily oral hygiene. Its design, material, and usage all have a direct impact on oral health. Bristles are categorized by hardness: soft, medium, or hard. Soft bristles are suitable for sensitive gums, medium bristles are suitable for most people, and hard bristles can damage teeth and gums. Because toothbrushes are consumables, they can easily bend and deform during use. Bent bristles can trap debris and easily abrade gums, necessitating regular brush head replacement.

[0003] Most toothbrushes now have the following problems:

[0004] First, the length of existing toothbrushes is mostly fixed when in use. When traveling, a longer toothbrush is inconvenient to carry, and a shorter toothbrush easily affects the use effect, and it is inconvenient to adjust the length of the toothbrush.

[0005] Second, most existing toothbrushes are fixed in one piece. After a period of use, the bristles of the brush head are prone to deformation, which affects the effect of use. It is a waste of resources to directly discard and replace the toothbrush head. It is inconvenient to disassemble and replace the toothbrush head.

[0006] Therefore, we have made improvements to this and proposed a toothbrush with a replaceable brush head. Utility Model Content

[0007] The purpose of the utility model is to solve the existing problems of inconvenience in adjusting the use length of a toothbrush and inconvenience in disassembling and replacing the brush head of the toothbrush.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A toothbrush with replaceable brush heads is provided to improve the above problems.

[0010] The specific application is as follows:

[0011] The cam is fixedly connected to the support frame, and the cam is fixedly connected to the support frame.

[0012] As a preferred technical solution of the present application, the side end surface of the installation box is in contact with the inner side surface of the extension rod, and the first springs are equidistantly distributed on the limit plate.

[0013] As a preferred technical solution of the present application, the side end surface of the limiting plate is in contact with the inner side surface of the installation box, and the first clamping rod is symmetrically distributed on the left and right sides of the limiting plate.

[0014] As a preferred technical solution of the present application, the cross section of the mounting frame is "L"-shaped, the cross section of the limit block is "T"-shaped, and the second clamping rods are equidistantly distributed on the connecting plate.

[0015] As a preferred technical solution of the present application, a pull rod is fixedly connected to the connecting plate, the upper limit sliding connection of the limit block is connected to the brush head, and the pull rod is fixedly connected to the center part of one side of the connecting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the scheme of this application:

[0018] 1. An installation box is provided; when folding and adjusting the toothbrush, the push plate on the connecting frame can be unfolded, and the limit plate on the connecting frame can be moved by pushing the push plate. When the limit plate moves, the first spring can be squeezed, and the limit plate can drive the first clamping rod to disengage from the extension rod and retract it into the installation box. When the installation box is unobstructed, the fixed rod in the extension rod can be pulled, and the extension rod and the fixed rod can be unfolded to adjust the use length. After the adjustment is completed, the push plate is released, and the limit plate and the first clamping rod are reset under the push of the first spring. The first clamping rod is stably engaged with the through hole above the extension rod for fixation. The distance between the extension rod and the fixed rod can be adjusted by folding, which is convenient for carrying or use.

[0019] 2. Set a limit block; when removing and replacing the brush head on the mounting bracket, the pull rod can be pulled to drive the connecting plate to move. The connecting plate can squeeze the second spring when moving. At the same time, the connecting plate can drive the second clamping rod to disengage from the brush head and retract it into the limit block. When the brush head is unobstructed, the brush head can be slid out of the limit block for disassembly. When fixing the replaced brush head, the brush head can be slid and engaged on the limit block, and the pull rod can be released. Under the push of the second spring, the connecting plate and the second clamping rod are driven to reset. The connecting plate can push the second clamping rod to engage in the brush head for limited fixation to prevent the replaced brush head from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall three-dimensional structure of a toothbrush with a replaceable brush head provided in this application;

[0021] Figure 2 A schematic side view of the mounting box for a toothbrush with replaceable brush heads provided in this application;

[0022] Figure 3 A schematic diagram of a top view of the first spring structure of a toothbrush with a replaceable brush head provided in this application;

[0023] Figure 4 A schematic side view of the structure of a toothbrush with a replaceable brush head provided in this application;

[0024] Figure 5 A schematic diagram of the top view of the limit block structure of the toothbrush with replaceable brush head provided in this application;

[0025] Figure 6 This is a schematic side view of the pull rod structure of the toothbrush with replaceable brush head provided in this application.

[0026] Markings in the figure: 1. Extension rod; 2. Fixed rod; 3. Mounting box; 4. First spring; 5. Limit plate; 6. First clamping rod; 7. Connecting frame; 8. Push plate; 9. Mounting frame; 10. Limit block; 11. Second spring; 12. Connecting plate; 13. Second clamping rod; 14. Pull rod; 15. Brush head. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0032] Example 1:

[0033] like Figure 1-6 As shown, this embodiment proposes a toothbrush with a replaceable brush head, including an extension rod 1 and a fixed rod 2, the extension rod 1 is provided with a fixed rod 2, the fixed rod 2 is fixedly connected to the fixed rod 2 with a mounting box 3, the mounting box 3 is fixedly connected to a first spring 4, the other end of the first spring 4 is fixedly connected to a limiting plate 5, the limiting plate 5 is fixedly connected to a first clamping rod 6, the limiting plate 5 is fixedly connected to a connecting frame 7, the connecting frame 7 is rotatably connected to a push plate 8, the fixed rod 2 is fixedly connected to a mounting frame 9, the mounting frame 9 is fixedly connected to a limiting block 10, the limiting block 10 is fixedly connected to a second spring 11, the second spring 11 is fixedly connected to a connecting plate 12, and the connecting plate 12 is fixedly connected to a second clamping rod 13.

[0034] Example 2:

[0035] The solution in Example 1 is further introduced below in conjunction with a specific working method, as described below:

[0036] like Figure 3As shown, as a preferred embodiment, on the basis of the above method, further, the side end face of the installation box 3 is fitted with the inner side face of the extension rod 1, and the first springs 4 are evenly distributed on the limit plate 5, which can ensure that multiple first springs 4 can smoothly push the limit plate 5 to move.

[0037] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the side end face of the limiting plate 5 is fitted with the inner side face of the installation box 3, and the first clamping rod 6 is symmetrically distributed on the left and right sides of the limiting plate 5, which can ensure that the first clamping rod 6 on both sides is engaged with the extension rod 1, and can smoothly engage and limit the installation box 3.

[0038] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, the cross section of the mounting frame 9 is "L"-shaped, the cross section of the limit block 10 is "T"-shaped, and the second clamping rod 13 is evenly distributed on the connecting plate 12, which can ensure that the brush head 15 can be stably engaged on the "T"-shaped limit block 10 for limited fixation.

[0039] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, a pull rod 14 is fixedly connected to the connecting plate 12, and a brush head 15 is slidably connected to the upper limit of the limit block 10. The pull rod 14 is fixedly connected to the center part of one side of the connecting plate 12 to ensure that when the pull rod 14 is pulled, the pull rod 14 can smoothly drive the connecting plate 12 to move.

[0040] Specifically, when using the toothbrush with a replaceable brush head: Figure 1-6 When folding and adjusting the toothbrush, the push plate 8 on the connecting frame 7 can be unfolded, and the limit plate 5 on the connecting frame 7 can be moved by pushing the push plate 8. When the limit plate 5 moves, the first spring 4 can be squeezed, and the limit plate 5 can drive the first clamping rod 6 to disengage from the extension rod 1 and retract it into the installation box 3. When the installation box 3 is unobstructed, the fixed rod 2 in the extension rod 1 can be pulled, and the extension rod 1 and the fixed rod 2 can be unfolded to adjust the use length. After the adjustment is completed, the push plate 8 is released, and the limit plate 5 and the first clamping rod 6 are reset under the push of the first spring 4. The first clamping rod 6 is stably engaged with the through hole above the extension rod 1 for fixation. The distance between the extension rod 1 and the fixed rod 2 can be adjusted by folding, which is convenient for carrying or use.

[0041] When the brush head 15 on the mounting bracket 9 is disassembled and replaced, the pull rod 14 can be pulled to drive the connecting plate 12 to move. The connecting plate 12 can squeeze the second spring 11 when moving. At the same time, the connecting plate 12 can drive the second clamping rod 13 to disengage from the brush head 15 and retract it into the limit block 10. When the brush head 15 is unobstructed, the brush head 15 can be slid out of the limit block 10 for disassembly. When the replaced brush head 15 is fixed, the brush head 15 can be slid and engaged on the limit block 10, and the pull rod 14 is released. Under the push of the second spring 11, the connecting plate 12 and the second clamping rod 13 are driven to reset. The connecting plate 12 can push the second clamping rod 13 to engage in the brush head 15 for limit fixation to prevent the replaced brush head 15 from falling off.

[0042] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements that do not deviate from the spirit and scope of the utility model are included in the scope of the claims of the present invention.

Claims

1. A toothbrush with a replaceable brush head, comprising an extension rod (1) and a fixed rod (2), characterized in that: A fixing rod (2) is provided in the extension rod (1), a mounting box (3) is fixedly connected to the fixing rod (2), a first spring (4) is fixedly connected to the mounting box (3), the other end of the first spring (4) is fixedly connected to a limiting plate (5), a first clamping rod (6) is fixedly connected to the limiting plate (5), a connecting frame (7) is fixedly connected to the limiting plate (5), a push plate (8) is rotatably connected to the connecting frame (7), a mounting frame (9) is fixedly connected to the fixing rod (2), a limiting block (10) is fixedly connected to the mounting frame (9), a second spring (11) is fixedly connected to the limiting block (10), a connecting plate (12) is fixedly connected to the second spring (11), and a second clamping rod (13) is fixedly connected to the connecting plate (12).

2. A toothbrush with a replaceable brush head according to claim 1, characterized in that: The side end surface of the installation box (3) fits the inner side surface of the extension rod (1), and the first springs (4) are equidistantly distributed on the limiting plate (5).

3. A toothbrush with a replaceable brush head according to claim 1, characterized in that: The side end surface of the limiting plate (5) is in contact with the inner side surface of the installation box (3), and the first clamping rod (6) is symmetrically distributed on the left and right sides of the limiting plate (5).

4. A toothbrush with a replaceable brush head according to claim 1, characterized in that: The cross section of the mounting frame (9) is L-shaped, the cross section of the limiting block (10) is T-shaped, and the second clamping rods (13) are equidistantly distributed on the connecting plate (12).

5. A toothbrush with a replaceable brush head according to claim 1, characterized in that: A pull rod (14) is fixedly connected to the connecting plate (12), a brush head (15) is slidably connected to the upper limit position of the limit block (10), and the pull rod (14) is fixedly connected to the center of one side of the connecting plate (12).

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