Connecting structure for brush head and brush handle of toothbrush

Abstract

The utility model relates to the technical field of toothbrushes, and provides a toothbrush head and brush handle connecting structure which comprises a handle and a brush handle. The handle and the brush handle are connected together through the connecting mechanism, a connecting hole is formed in one end of the brush handle, a boss A is arranged on the inner wall of the connecting hole, the connecting mechanism is composed of a threaded supporting rod and an inserting rod, the threaded supporting rod is fixedly connected with the inserting rod, the inserting rod is inserted into the connecting hole, and a boss D fixedly connected with the inserting rod is arranged in the middle of the inserting rod in a sleeved mode. And the boss D is clamped on the outer side of the boss A. The handle designed by the utility model has the beneficial effects that an innovative connecting structure is ingeniously adopted, the detachable connection between the handle and the brush handle is realized, and the design endows extremely high flexibility between the handle and the brush handle; the operation that a user can easily replace the brush handle after the bristles are abraded or damaged due to long-term use is greatly facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to toothbrush technical field, concretely is a toothbrush brush head, brush handle connecting structure. BACKGROUND

[0002] Toothbrush is a kind of cleaning supplies, is handle type brush, is used to add toothpaste on brush, then repeatedly brushes each part of tooth, to keep oral hygiene.

[0003] The traditional toothbrush design often adopts fixed handle and brush handle connecting mode, this design is particularly inconvenient when user needs to replace the bristle part worn or damaged due to long-term use, since handle and brush handle are not detachable, user is often forced to replace the entire cleaning brush as a whole, which not only increases the use cost, but also causes unnecessary resource waste. UTILITY MODEL CONTENT

[0004] The utility model is to provide a toothbrush brush head, brush handle connecting structure to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a toothbrush brush head, brush handle connecting structure, including handle and brush handle;

[0006] The handle is connected together by connecting mechanism and brush handle, one end of the brush handle is provided with connecting hole, A boss is arranged on the inner wall of the connecting hole, the connecting mechanism is composed of threaded support rod and plug-in rod, the threaded support rod and plug-in rod are fixedly connected, the plug-in rod is inserted in the inside of connecting hole, D boss is sleeved on the middle part of plug-in rod, and D boss is clamped on the outer side of A boss.

[0007] Preferably, the threaded support rod and plug-in rod are located on the same axis, and the threaded support rod is threadedly connected in the inside of the handle.

[0008] Preferably, one end of the plug-in rod is fixedly connected with C step, and the outer side of C step is tightly attached to the inner wall of the connecting hole.

[0009] Preferably, two B grooves are symmetrically arranged at the opening of the connecting hole, and the two B grooves are U-shaped structure and are on the same side of the opening of the connecting hole.

[0010] Preferably, the D boss is annular structure and the outer diameter is smaller than the opening diameter of the connecting hole.

[0011] Compared with the prior art, the handle designed in the utility model has the beneficial effects that: the handle is connected with the brush handle in a detachable mode through the innovative connecting structure, which greatly improves the flexibility between the handle and the brush handle, and greatly facilitates the user to replace the brush handle when the bristles are worn or damaged after long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is an assembly view of the utility model;

[0013] Figure 2 It is an assembly view of the utility model; Figure 1 It is an enlarged view of the area at E in the middle;

[0014] Figure 3 It is an assembly view of the utility model;

[0015] Figure 4 It is a connecting mechanism structure schematic view of the utility model;

[0016] Figure 5 It is an external structure schematic view of the utility model during installation.

[0017] In the drawing: 1, handle; 2, brush handle; 3, connecting mechanism; 31, threaded rod; 32, plug-in rod; 33, C step; 34, D boss; 4, A boss; 5, B groove; 6, connecting hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figures 1-5 The utility model provides the following technical scheme:

[0020] Embodiment one: a toothbrush head and brush handle connecting structure, comprising a handle 1 and a brush handle 2.

[0021] During use, the handle 1 and the brush handle 2 are combined together, the user holds the handle 1, the brush handle 2 is stretched into the oral cavity, and the tooth brushing action is performed.

[0022] In this embodiment, the handle 1 is connected with the brush handle 2 through the connecting mechanism 3, the brush handle 2 is provided with the connecting hole 6 at one end, two B grooves 5 are symmetrically arranged at the opening of the connecting hole 6, the two B grooves 5 are in U-shaped structure and are on the same side of the opening of the connecting hole 6, the A boss 4 is arranged on the inner wall of the connecting hole 6, the connecting mechanism 3 is composed of the threaded support rod 31 and the plug-in rod 32, the threaded support rod 31 and the plug-in rod 32 are fixedly connected, the threaded support rod 31 and the plug-in rod 32 are located on the same axis, the threaded support rod 31 is threadedly connected in the handle 1, the C step 33 is fixedly connected to one end of the plug-in rod 32, the C step 33 is tightly arranged on the inner wall of the connecting hole 6, the plug-in rod 32 is inserted into the connecting hole 6, the D boss 34 is arranged on the middle part of the plug-in rod 32, the D boss 34 is clamped on the outer side of the A boss 4, and the D boss 34 is in ring-shaped structure and has an outer diameter smaller than the opening diameter of the connecting hole 6.

[0023] During assembly, the threaded support rod 31 is threadedly connected in the handle 1, the handle 1 and the brush handle 2 are held, and the plug-in rod 32 is inserted into the connecting hole 6, in this process, the D boss 34 crosses the A boss 4, the A boss 4 tightly wraps the D boss 34, and when the D boss 34 crosses, the A boss 4 is plastically deformed under the axial action of the D boss 34, since the brush handle 2 is provided with the B groove 5, when the B groove 5 is subjected to the thrust of the A boss 4, the B groove 5 is elastically deformed, so that the plug-in rod 32 smoothly passes through the A boss 4, in addition, when the plug-in rod 32 with the C step 33 is inserted and crosses the A boss 4, a slight interference fit is formed between the C step 33 and the inner wall of the connecting hole 6, so that the plug-in rod 32 is tightly wrapped by the brush handle 2, so that the brush handle 2 is fixed on the plug-in rod 32, when the brush handle 2 is replaced, the handle 1 and the brush handle 2 are held respectively, and the handle 1 and the brush handle 2 are pulled in opposite directions, the brush handle 2 is removed from the plug-in rod 32, and the new brush handle 2 is sleeved on the outer side of the plug-in rod 32.

[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A toothbrush head, brush handle connecting structure, comprising a handle (1) and a brush handle (2); characterized in that The handle (1) is connected with the brush handle (2) through a connecting mechanism (3), one end of the brush handle (2) is provided with a connecting hole (6), an A boss (4) is arranged on the inner wall of the connecting hole (6), the connecting mechanism (3) is composed of a threaded support rod (31) and a plug-in rod (32), the threaded support rod (31) and the plug-in rod (32) are fixedly connected, the plug-in rod (32) is inserted into the connecting hole (6), a D boss (34) is arranged on the middle part of the plug-in rod (32), and the D boss (34) is clamped on the outer side of the A boss (4).

2. The toothbrush head-handle connection structure according to claim 1, wherein: The threaded support rod (31) and the plug-in rod (32) are located on the same axis line, and the threaded support rod (31) is threadedly connected in the handle (1).

3. The toothbrush head-handle connection structure of claim 1, wherein: One end of the plug-in rod (32) is fixedly connected with a C step (33), and the outer side of the C step (33) is tightly attached to the inner wall of the connecting hole (6).

4. The toothbrush head-handle connection structure of claim 1, wherein: Two B grooves (5) are symmetrically arranged at the opening of the connecting hole (6), the two B grooves (5) are both in U-shaped structure and are arranged on the same side of the opening of the connecting hole (6).

5. The toothbrush head-handle connection structure of claim 1, wherein: The D boss (34) is in ring-shaped structure and has an outer diameter smaller than the opening diameter of the connecting hole (6).

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