CN217040392U - Electric toothbrush brush head connecting structure - Google Patents

Abstract

The utility model relates to the technical field of electric toothbrushes, in particular to a brush head connecting structure of an electric toothbrush, which comprises a main machine shell, a brush head shell, an elastic locking part and a locking ring, wherein the brush head shell is connected with the main machine shell, one end of the brush head shell is provided with a brush head mounting groove, the elastic locking part is respectively connected with the main machine shell and the brush head shell, and the locking ring is sleeved outside the main machine shell and the elastic locking part; the elastic locking part is arranged at one end of the brush head shell far away from the brush head mounting groove; a clamping groove for installing the elastic locking part is formed on one side, close to the brush head shell, of the main machine shell. The utility model discloses can effectual realization host computer shell with brush first shell around about fixed of direction from top to bottom, host computer shell appears separating with brush first shell when avoiding using.

Description

Electric toothbrush brush head connecting structure

Technical Field

The present invention relates to an electric toothbrush, and more particularly, to a connection structure for a toothbrush head of an electric toothbrush.

Background

When the electric toothbrush in the prior art works in the oral cavity, as the brush head moves back and forth in the oral cavity, the brush head receives an acting force which inclines axially along the length direction of the toothbrush, and the acting force enables a main machine shell of the electric toothbrush to be separated from a shell of the brush head; in the prior art, the separation along the length direction of the electric toothbrush is avoided by adopting the matching of concave and convex points; however, the effect is not good, and the concave-convex points are arranged too deeply, so that the difficulty is great when the main machine shell and the brush head shell are assembled; too shallow a relief point will still cause separation upon receiving the tilting force; the function of fixing the main machine shell and the brush head shell mutually can not be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electric toothbrush brush head connection structure is provided, can effectually realize the host computer shell and brush first shell fixed, avoided host computer shell and brush first shell phase separation in the use, cause unable normal use.

The utility model provides a solution that technical problem adopted is:

a brush head connecting structure of an electric toothbrush comprises a main machine shell, a brush head shell which is connected with the main machine shell and one end of which is provided with a brush head mounting groove, an elastic locking part which is respectively connected with the main machine shell and the brush head shell, and a locking ring which is sleeved outside the main machine shell and the elastic locking part; the elastic locking part is arranged at one end of the brush head shell far away from the brush head mounting groove; and a clamping groove for installing the elastic locking part is formed at one side of the main machine shell, which is close to the brush head shell.

When assembling, press elasticity locking portion to host computer shell one side earlier, make first shell of brushing close to one side each other with the host computer shell and accomplish the equipment, elasticity locking portion will receive external force this moment, elasticity locking portion will move to first shell one side of brushing under the effect of elastic recovery power, elasticity locking portion will be in compression state and remain throughout with the draw-in groove joint, make the host computer shell and the relatively fixed of first shell of brushing, thereby make and brush the long direction separation that the shell can not follow the host computer shell using, the condition of having avoided unable normal use appears.

In some possible embodiments, in order to achieve an effective elastic grip;

the elastic locking part comprises an elastic piece arranged in the host case, and a locking piece which is elastically matched with the elastic piece and is in sliding fit with the host case.

In some possible embodiments, in order to effectively realize that external force is applied to the elastic locking and the elastic locking can be clamped with the brush head shell, the relative fixation between the main machine shell and the brush head shell is realized;

the locking member comprises a pressing member connected with the elastic member and a locking protrusion arranged on the pressing member.

In some possible embodiments, in order to effectively achieve the connection with the elastic member, the pressing member is allowed to obtain elastic potential energy;

the pressing part comprises a connecting part which is elastically matched with the elastic part and a pressing part arranged on the outer side of the connecting part; the locking protrusion is arranged on the connecting piece.

In some possible embodiments, in order to effectively realize the installation of the locking protrusion and ensure that the main machine shell and the brush head shell can be relatively fixed after the assembly is finished;

the draw-in groove is including setting up on the host computer shell and be used for installing elastic component and locking bellied dashpot, set up at the first shell of brush be close to dashpot one side and with the protruding adaptation of locking groove, set up on the first shell of brush and with pressing piece sliding fit's spout.

In some of the possible embodiments, the first and second,

the elastic piece comprises an elastic unit A and/or an elastic unit B, wherein the elastic unit A is connected with the end part of one end, close to the main case, of the connecting piece, and the elastic unit B is connected with the main case and is in sliding fit with the pressing piece and is arranged in the sliding groove.

In order to effectively realize the connection of the elastic piece and the pressing piece,

in some possible embodiments, the connecting member has a U-shaped structure, and the opening of the U-shaped structure is disposed at a side close to the main chassis; the elastic units A are divided into two groups and are connected with one side of the opening end of the connecting piece; the locking bulges are two groups and are connected with the opening ends of the connecting ends.

In some possible embodiments, the elastic unit B comprises a spring B mounted in the chute and having an axis arranged along the sliding direction of the pressing member, the spring B being elastically engaged by the pressing member near one end thereof.

In order to effectively realize the sliding guide of the pressing piece;

in some possible embodiments, the locking member further comprises a guide portion connected to the bottom of the pressing member and having a T-shaped structure, and the sliding groove has a T-shaped cross section and is matched with the guide portion; the main end of the guide part is arranged on one side far away from the bottom of the pressing piece and is positioned in the locking ring.

In some possible embodiments, the elastic unit B further includes a guide post installed in the sliding groove and disposed along a sliding direction of the pressing piece, the spring B is sleeved outside the guide post and connected with the guide post, and a guide hole matched with the guide post is disposed on the pressing piece.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model effectively avoids the separation and falling of the main machine shell and the brush head shell caused by the force applied to the brush head by the elastic locking part, thereby preventing the brush head from being normally used;

the utility model effectively positions and guides the sliding direction of the pressing piece by arranging the sliding chute or the guide part or the guide post with the T-shaped structure; make the locking protruding can get into the dashpot smoothly or the locking inslot, and then make the equipment of this device more convenient high-efficient.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the main casing, the elastic locking portion and the locking ring of the present invention;

FIG. 3 is a schematic view showing the installation relationship of the main frame casing, the brush head casing, the elastic locking portion and the locking ring;

FIG. 4 is an assembly view of the main frame and the brush head casing;

fig. 5 is a schematic structural view of the elastic locking portion of the present invention;

FIG. 6 is a schematic view showing the position relationship among the buffer slot, the sliding slot, the guide post and the spring B of the present invention;

fig. 7 is a schematic structural view of the middle slider portion of the present invention;

wherein: 1. a main chassis; 11. a buffer tank; 12. a chute; 13. a long groove; 14. a second bolt; 2. a brush head housing; 21. a locking groove; 22. a first bolt; 3. an elastic locking portion; 311. a pressing member; 3111. a guide portion; 312. a connecting member; 313. a locking projection; 321. an elastic unit A; 322. an elastic unit B; 33. a guide post; 4. and locking the ring.

Detailed Description

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning pillars refers to two or more positioning pillars. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The present invention will be described in detail below.

As shown in fig. 1-7:

a brush head connection structure of an electric toothbrush comprises a main machine shell 1, a brush head shell 2 which is connected with the main machine shell 1 and one end of which is provided with a brush head installation groove, an elastic locking part 3 which is respectively connected with the main machine shell 1 and the brush head shell 2, a locking ring 4 which is sleeved outside the main machine shell 1 and the elastic locking part 3, and a sliding part which is arranged on the contact surface of the main machine shell 1 and the brush head shell 2 and is used for fixing in the front, back, left and right directions; the elastic locking part 3 is arranged at one end of the brush head shell 2 far away from the brush head mounting groove; and a clamping groove for installing the elastic locking part 3 is formed at one side of the main machine shell 1, which is close to the brush head shell 2.

When assembling, press elasticity locking portion 3 to 1 one side of host computer shell earlier, make brush head shell 2 and host computer shell 1 be close to one side each other and accomplish the equipment, elasticity locking portion 3 will receive external force this moment, elasticity locking portion 3 will remove to 2 one sides of brush head shell under the effect of elastic recovery power, elasticity locking portion 3 will be in compression state and remain throughout with the draw-in groove joint, make host computer shell 1 and the relative fixed of brush head shell 2, thereby make and can not follow the long direction separation of host computer shell 1 using brush head shell 2, the condition of having avoided unable normal use appears.

In some possible embodiments, for effective implementation of the elastic clamping;

the elastic locking part 3 comprises an elastic piece arranged in the main case 1 and a locking piece which is elastically matched with the elastic piece and is in sliding fit with the main case 1.

Retaining member receives the one side motion that external pressure effect will be close to host computer shell 1 down when using, finishes the installation brush head shell 2 back, no longer exerts external force, and the retaining member will be to keeping away from 1 side motion of host computer shell under elastic component elastic force to make retaining member and brush head shell 2 be close to 1 side joint of host computer shell.

In some possible embodiments, in order to effectively realize that external force is applied to the elastic locking and the elastic locking can be clamped with the brush head shell 2, the relative fixation between the main machine shell 1 and the brush head shell 2 is realized;

the locking member includes a pressing member 311 connected with the elastic member, and a locking protrusion 313 provided on the pressing member 311.

The locking protrusion 313 is used for realizing clamping connection with one side of the brush head shell 2 close to the main machine shell 1, so that the brush head shell 2 and the main machine shell 1 are fixed;

in some possible embodiments, in order to effectively realize the connection with the elastic member, the pressing member 311 is allowed to obtain elastic potential energy;

the pressing part 311 comprises a connecting part 312 elastically matched with the elastic part and a pressing part arranged outside the connecting part 312; the locking protrusion 313 is provided on the connection member 312.

The connecting member 312, the locking protrusion 313 and the pressing portion can be integrally formed and can be fixed to each other in an assembled manner.

In some possible embodiments, in order to effectively realize that the locking protrusion 313 can be connected with the brush head housing 2 and ensure that the main machine housing 1 and the brush head housing 2 can be relatively fixed after being assembled;

the clamping groove comprises a buffer groove 11 which is arranged on the main machine shell 1 and used for installing an elastic piece and a locking protrusion 313, a locking groove 21 which is arranged on one side, close to the buffer groove 11, of the brush head shell 2 and matched with the locking protrusion 313, and a sliding groove 12 which is arranged on the brush head shell 2 and is in sliding fit with the pressing piece 311.

A through groove is arranged on one side of the brush head shell 2 close to the elastic locking part 3, the through groove is communicated with the clamping groove, and the pressing part penetrates through the through groove;

when the fixation of the main machine shell 1 and the brush head shell 2 is realized, the locking protrusion 313 is positioned in the locking groove 21, thereby effectively limiting the movement of the brush head shell 2 along the length direction of the main machine shell 1 and avoiding the separation of the brush head shell 2 along the length direction when in use;

during assembly, external force is applied to the pressing piece 311 to enable the pressing piece to move towards one side close to the main case 1, so that the locking protrusion 313 is driven to move towards one side close to the main case 1 along the length direction of the sliding groove 12 and slide into the buffer groove 11, at the moment, the elastic piece is stressed and compressed, and the situation that one side close to the brush head shell 2 of the main case 1 cannot be completely attached to the other side is avoided;

when the two are assembled, the pressing piece 311 is not subjected to external force any more, the pressing piece 311 and the locking protrusion 313 move to one side of the brush head shell 2 under the action of elastic force, and the locking protrusion 313 moves into the locking groove 21 and is clamped with the locking groove 21;

the locking ring 4 effectively limits the sliding position of the elastic locking part 3 in the process of assembling the main machine shell 1 and the brush head shell 2, and avoids the elastic locking part 3 from being separated from the sliding groove 12;

when the main machine shell 1 and the brush head shell 2 are detached, external force is applied to the pressing piece 311, the locking protrusion 313 interacts with one side of the main machine shell 1 and enters the buffer groove 11, and then the brush head shell 2 can be taken down;

the utility model is simple and convenient to install and dismantle; the relative fixation of the main machine shell 1 and the brush head shell 2 is effectively realized by arranging the elastic locking part 3.

In some of the possible embodiments, the first and second,

the elastic element comprises an elastic unit A321 and/or an elastic unit B322, wherein the elastic unit A321 and the connecting element 312 are close to one end of the main chassis 1; the elastic unit B322 is installed in the sliding groove 12 and connected to the bottom of the sliding groove 12 and one side of the pressing member 311 near the brush head housing 2.

In the present invention, the elastic unit a321 serves as an implementation manner;

as shown in fig. 5, the elastic unit a321 is used for providing elastic potential energy to the pressing piece 311, so that the pressing piece 311 can move in the sliding groove 12 and is clamped with the brush head housing 2 to fix the main housing 1 and the brush head housing 2; the elastic unit a321 is disposed at one end of the connection member 312 near the main chassis 1, and when assembling, the elastic unit a321 will move into the buffer slot 11 together with the locking protrusion 313; the elastic unit a321 will be in a compressed state to continuously apply force to the pressing piece 311.

The elastic unit B322 has the same function as the elastic unit A321, and the elastic unit B322 can be independently adopted as an implementation mode;

as shown in fig. 6, the elastic unit B322 is installed in the chute 12 and connected to one side of the chute 12 away from the brush head housing 2; during assembly, the pressing member 311 is forced to move toward the side close to the main chassis 1, and applies an acting force to the elastic unit B322, so that the elastic unit B is elastically deformed and takes a compressed state; the locking protrusion 313 moves into the buffer groove 11, and then the assembly of the brush head housing 2 can be realized;

after the assembly is completed, the pressing piece 311 is not stressed any more, so that the elastic unit B322 is restored to the initial state, and the pressing piece 311 is driven to move towards the side close to the brush head shell 2, so that the locking protrusion 313 is located in the locking groove 21; the elastic unit B322 will be in a compressed state to continuously apply force to the pressing piece 311.

Preferably, the locking protrusion 313 is L-shaped, and includes a vertical rod connected to the connecting member 312, and a cross rod connected to an end of the vertical rod away from the connecting member 312, and the free end of the cross rod is disposed at a side close to the brush head housing 2.

After the assembly is completed, the cross bar enters the locking groove 21 and is clamped with the locking groove 21.

Of course, the above two methods can be used together during processing.

In order to effectively achieve the connection of the elastic member with the pressing member 311,

in some possible embodiments, the connecting member 312 has a U-shaped structure, and the opening thereof is disposed at a side close to the main chassis 1; the elastic units A321 are two groups and are connected with one side of the opening end of the connecting piece 312; the locking protrusions 313 are two groups connected with the open ends of the connecting ends.

The connecting piece 312 is designed into a U-shaped structure, and the main purpose of the connecting piece 312 is to stagger other parts installed in the main chassis 1, so as to avoid mutual interference;

further, the elastic unit a321 is any one of a compression spring, a plate spring and a disc spring;

preferably, the elastic unit a321 is a compression spring fixedly sleeved on the connecting piece 312; when the pressing piece 311 is forced to move toward the side close to the main chassis 1, the compression spring is compressed and enters the buffer slot 11 together with the locking protrusion 313.

In some possible embodiments, the elastic unit B322 includes a spring B installed in the chute 12 and having an axis arranged along the sliding direction of the pressing piece 311, and the spring B is elastically engaged with the pressing piece 311 near one end of the pressing piece 311.

Further, the elastic unit B322 is any one of a compression spring, a plate spring, and a disc spring;

preferably, the elastic unit B322 is a compression spring; the axis thereof coincides with the sliding direction of the pressing piece 311, that is, with the long direction of the chute 12.

The elastic member may be bent and deformed when elastically deformed, in order to effectively achieve sliding guidance of the pressing member 311;

in some possible embodiments, the locking member further includes a guide portion 3111 connected to the bottom of the pressing member 311 and having a T-shaped structure, and the chute 12 has a T-shaped cross section and is adapted to the guide portion 3111; the large end of the guide portion 3111 is disposed at a side away from the bottom of the pressing member and inside the locking ring 4.

The slide groove 12 has a T-shaped cross section, a small end is disposed above the slide groove to form an inverted T shape, and the slide groove is slidably engaged with the guide portion 3111 having a T-shaped structure, thereby guiding the sliding direction of the pressing piece 311.

Of course, the sliding groove 12 may be a dovetail groove, and the guide portion may be a dovetail-shaped guide structure, and when the guide portion is a dovetail groove, the opening end is a small end, so that guidance is achieved while separation is avoided.

In some possible embodiments, the elastic unit B322 further includes a guide post 33 installed in the sliding slot 12 and disposed along the sliding direction of the pressing member 311, the spring B is sleeved outside the guide post 33 and connected to the guide post 33, and the pressing member 311 is provided with a guide hole engaged with the guide post 33.

One end of the guide post 33 is installed at one side of the sliding chute 12 close to the main chassis 1 and the axis thereof is arranged along the sliding direction of the pressing piece 311; the spring B is sleeved at the other end of the guide post 33, and the other end of the spring B extends into the guide hole; during the equipment, the pressing piece 311 atress is to being close to spring B one side motion, and spring B produces the atress compression to make locking protruding 313 will be located buffer slot 11, then can carry out the installation of brush head shell 2, the back of finishing the installation, pressing piece 311 atress no longer, spring B will resume initial condition, drive pressing piece 311 and slide to the one side of keeping away from host computer shell 1, thereby make locking protruding 313 be located locking groove 21, accomplish the equipment.

Further, as shown in fig. 7, a sliding portion is disposed on a contact surface between the main housing 1 and the brush head housing 2, and the sliding portion is connected to the main housing 1 through the sliding portion, the sliding portion includes a sliding groove portion disposed on the main housing 1 and a sliding block portion disposed on the brush head housing 2 and slidably engaged with the sliding groove portion, the sliding block portion is provided with a sliding block and a first pin 22, the sliding groove portion is provided with a long groove 13 slidably engaged with the sliding block, and a second pin 14 disposed on a side surface of the long groove 13 and engaged with the first pin 22, the first pin 22 is in a T-shaped structure, a small end of the first pin 22 is connected to the brush head housing 2 near the main housing 1 and forms two insertion openings engaged with the second pin 14, the first pin 22 can slide up and down in the long groove 13 through the second pin 14, the sliding block is engaged with the long groove 13, so that the main housing 1 and the brush head housing 2 are locked to prevent from tilting in opposite directions when force is applied, when the above-mentioned structure is installed, firstly, the sliding part is buckled on the sliding groove part and slides downwards, so that the first bolt 22 is clamped with the second bolt 14, and the front, the back, the left and the right directions of the first bolt and the second bolt are locked; meanwhile, the elastic locking part 3 effectively realizes the locking in the up-down direction, and finally the main machine shell 1 and the brush head shell 2 are completely fixed in the up-down left-right front-back direction.

The utility model is characterized in that one side of the main frame shell 1 far away from the brush head shell 2 is provided with a camera, a brush head is arranged in the brush head mounting groove, the brush head shell 2 is provided with a driving part in transmission connection with the brush head, and the included angle between the image collecting direction of the camera and the direction of brush head bristles is 0-90 degrees;

whether to set a camera may be determined according to the function of the electric toothbrush; set up the camera and will realize the real-time supervision in oral cavity, the angle is nimble to be placed, more is favorable to observing the inside condition in oral cavity.

The improvement of the utility model is that the transmission with the brush head and the installation of the camera component are not described in detail for the specific structure.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims (10)

1. A brush head connecting structure of an electric toothbrush is characterized by comprising a main machine shell, a brush head shell, an elastic locking part and a locking ring, wherein the brush head shell is connected with the main machine shell, one end of the brush head shell is provided with a brush head mounting groove, the elastic locking part is respectively connected with the main machine shell and the brush head shell, and the locking ring is sleeved on the outer sides of the main machine shell and the elastic locking part; the elastic locking part is arranged at one end of the brush head shell far away from the brush head mounting groove; and a clamping groove for installing the elastic locking part is formed at one side of the main machine shell, which is close to the brush head shell.

2. The brush head attachment structure of an electric toothbrush according to claim 1, wherein the elastic locking part includes an elastic member provided in the main chassis and a locking member elastically engaged with the elastic member and slidably engaged with the main chassis.

3. The brush head attachment structure of an electric toothbrush according to claim 2, wherein the locking member includes a pressing member connected to the elastic member, and a locking protrusion provided on the pressing member.

4. The connection structure of the brush head of the electric toothbrush according to claim 3, wherein the pressing member comprises a connection member elastically engaged with the elastic member, a pressing portion provided outside the connection member; the locking protrusion is arranged on the connecting piece.

5. The connection structure of the brush head of the electric toothbrush according to claim 3 or 4, wherein the locking groove comprises a buffer groove disposed on the main housing for installing the elastic member and the locking protrusion, a locking groove disposed on a side of the brush head housing close to the buffer groove and adapted to the locking protrusion, and a sliding groove disposed on the brush head housing and slidably engaged with the pressing member.

6. The connection structure of the brush head of the electric toothbrush according to claim 5, wherein the elastic member comprises an elastic unit A connected to an end of the connection member near one end of the main casing and/or an elastic unit B connected to the main casing and slidably engaged with the pressing member, the elastic unit B being disposed in the sliding groove.

7. The connection structure of claim 6, wherein the connection member has a U-shaped structure, and an opening thereof is formed at a side close to the main housing; the elastic units A are divided into two groups and are connected with one side of the opening end of the connecting piece; the locking bulges are two groups and are connected with the opening ends of the connecting ends.

8. The brush head attachment structure of an electric toothbrush according to claim 6, wherein the elastic unit B comprises a spring B installed in the slide groove and having an axis arranged in a sliding direction of the pressing member, the spring B being elastically engaged with the pressing member near one end of the pressing member.

9. The connection structure of any one of claims 6 to 8, wherein the locking member further comprises a guide part which is connected with the bottom of the pressing member and has a T-shaped structure, and the cross section of the sliding groove is T-shaped and is matched with the guide part; the big end of the guide part is arranged on one side far away from the bottom of the pressing piece and is positioned in the locking ring.

10. The connection structure of the electric toothbrush head according to claim 8, wherein the elastic unit B further comprises a guide post installed in the sliding groove and disposed along a sliding direction of the pressing member, the spring B is sleeved outside the guide post and connected with the guide post, and the pressing member is provided with a guide hole engaged with the guide post.

Images