CN210250135U - Sound wave toothbrush - Google Patents

Abstract

The utility model discloses a sound wave toothbrush, including the handle afterbody is provided with a handle back lid, its characterized in that: the handle rear cover is provided with a convex rib, the rear end of the handle is provided with a convex rib limiting seat matched with the convex rib, and the handle rear cover further comprises a guide wall connected with the convex rib limiting seat and an ejection wall connected with the guide wall and inclined downwards along the guide wall. The utility model discloses make behind the handle lid only need rotate very little angle, alright in order to make it can be along the handle by ejecting great distance downwards, this makes things convenient for the change of battery greatly.

Description

Sound wave toothbrush

Technical Field

The utility model relates to an electric toothbrush technical field.

Background

The toothbrush is a necessary washing article in daily life, and the common toothbrush needs to swing back and forth by hands to brush teeth, so that the labor is wasted. Therefore, electric toothbrushes have been introduced in the market to overcome the labor-intensive drawbacks of manual toothbrushes.

Generally, an electric toothbrush with a replaceable battery on the market is provided with a detachable rear cover at the rear end of a handle, and the rear cover is covered after the battery is placed in the handle. Generally, the rear cover and the handle are connected in a threaded connection or a buckling connection mode. Through the threaded connection mode, the back cover is relatively slow in screwing-out speed, and a sealing part on the back cover is easy to wear and lose efficacy; through the back lid of buckle connection, make buckle junction inefficacy or connection effect reduce easily after the back lid dismouting many times.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a sound wave toothbrush.

The utility model discloses a realize through following technical scheme: the sound wave toothbrush comprises a handle, a handle rear cover arranged at the tail of the handle, a convex rib arranged on the handle rear cover, a convex rib limiting seat matched with the convex rib arranged at the rear end of the handle, a guide wall connected with the convex rib limiting seat and an ejection wall connected with the guide wall and inclined downwards along the guide wall.

In the technical scheme, the toothbrush comprises a bracket fixedly arranged in the handle, a transmission rod inserted in the handle and a toothbrush head matched with the transmission rod, wherein a vibration motor is arranged in the transmission rod close to the front end of the transmission rod.

In the technical scheme, the support is provided with the battery bin, and the handle rear cover is provided with the contact sheet matched with the battery electrode in the battery bin.

According to the technical scheme, the inner wall of the handle is provided with the sliding groove, the support is provided with the sliding rib matched with the sliding groove, the inner wall of the handle is provided with the fixing groove, the support is correspondingly provided with the buckle matched with the fixing groove, and the buckle is buckled into the fixing groove so as to realize the fixed matching of the support and the handle.

In the technical scheme, a gap exists between the handle rear cover and the bracket.

The utility model discloses following beneficial effect has: the utility model discloses make behind the handle lid only need rotate very little angle, alright in order to make it can be along the handle by ejecting great distance downwards, this makes things convenient for the change of battery greatly.

Drawings

Fig. 1 is a schematic sectional structure diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the transmission rod of the present invention.

Fig. 3 is a schematic perspective view of the stent.

Fig. 4 is a perspective view of the handle.

Fig. 5 is a schematic perspective view of the handle rear cover.

Fig. 6 is a schematic view of the handle from a perspective.

Fig. 7 is a schematic structural view of the handle from another view angle.

Fig. 8 is a schematic view of the engagement between the handle and the drive link from the perspective of fig. 7.

Fig. 9 is a schematic sectional structure diagram in embodiment 2 of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings: example 1: referring to fig. 1 to 8, the electric toothbrush comprises a handle 1, a bracket 2 fixedly arranged in the handle, a transmission rod 3 inserted in the handle 1 and a toothbrush head 4 matched with the transmission rod, wherein the transmission rod 3 is provided with a first part 30 extending out of the handle and a second part 31 positioned in the handle, a vibration motor 5 is arranged at the front end of the first part 30, two sealing rings 7 are arranged on the second part 31 at intervals, and a seal is formed between the sealing rings 7 and a step part 101 formed at the front end of the handle 1.

The rear end of the second part 31 has a first plane 41a, the front end of the bracket 2 has a second plane 2a, and the first plane 41a and the second plane 2a are abutted against each other. Through the mutual cooperation between the two planes of the first plane and the second plane, a fulcrum structure is not generated between the transmission rod 3 and the front end of the bracket when the transmission rod vibrates, so that the noise generated by the transmission rod 3 in the vibration process can be greatly reduced. Furthermore, the carrier 2 bears against the rear end of the drive rod 3, so that the drive rod 3 is prevented from being displaced in the direction of the carrier 2.

Preferably, a sliding groove 10 is arranged on the inner wall of the handle 1, and a sliding rib 20 matched with the sliding groove 10 is arranged on the bracket 2. The inner wall of the rear end of the handle 1 is provided with a fixing groove 11, and the bracket 2 is correspondingly provided with a buckle 21 matched with the fixing groove 11. The main control panel 100 is arranged on the bracket 2, and the button part 200 is arranged on the handle 1.

In the above structure, when the bracket 2 is mounted on the handle 1, the sliding rib 20 on the bracket 2 is only required to be aligned with the sliding groove 10, and then the bracket 2 is slid into the handle 1 along the sliding groove 10, when the bracket 2 slides to the limit position (i.e. when the bracket abuts against the transmission rod), the main control board 100 on the mounting bracket 2 is aligned with the button component 200 on the handle 1, and at this time, the instruction output on the main control board 100 can be controlled by operating the button component 200; and in the above position, the buckle 21 is buckled into the fixing groove 11, so that the bracket 2 is fixed on the handle 1. Further, in order to increase the resilience of the clip 21, notches 21a are hollowed out on both sides of the clip 21. By means of the structure, the assembly efficiency of the support and the handle is greatly improved, and the assembly error rate is reduced.

The support 2 is provided with a battery compartment, and the handle rear cover is provided with a contact piece 300 matched with a battery electrode in the battery compartment. A gap is formed between the handle rear cover and the bracket. In the above-mentioned structure, detain the fixed slot through buckle 21 and realize the fixed connection of support and handle, consequently when the handle production is producing the vibration, its vibration can not be to handle back cap position transmission, and this has reduced the risk that the back lid drops.

The handle is characterized in that a handle rear cover 6 is arranged at the tail of the handle 1, the handle rear cover 6 is detachably and fixedly matched with the handle 1 in a screwing mode, specifically, a convex rib 20 in the horizontal direction is arranged on the handle rear cover 6, a convex rib limiting seat 12 matched with the convex rib 20 is arranged at the rear end of the handle, and the handle rear cover further comprises a guide wall 13 connected with the convex rib limiting seat 12 and an ejection wall 14 connected with the guide wall 13 and inclined downwards along the guide wall 13.

In the structure, the convex rib 20 on the handle rear cover 6 is dislocated with the convex rib limiting seat 12, and the handle rear cover 6 can be pressed into the handle; then the handle rear cover 6 is rotated forward, so that the convex rib 20 on the handle rear cover 6 slides into the convex rib limiting seat 12, and at the moment, the handle rear cover 6 and the handle 1 form fastening fit. When the handle rear cover 6 needs to be detached, the handle rear cover 6 rotates reversely, the convex rib 20 is separated from the convex rib limiting seat 12, the convex rib 20 enters the ejection wall 14 along the guide wall 13 at the moment, and the convex rib 20 and the ejection wall 14 are abutted and matched, so that the handle rear cover 6 only needs to rotate by a small angle, the handle rear cover can be ejected by a large distance downwards along the handle 1, and a user can extract the handle by grabbing the handle rear cover 6 and the part of the ejection handle 1.

There is protruding piece 32 in the circumference of the afterbody of transfer line 3 be provided with the restriction on the front end casing of handle 1 protruding piece 32 circumference activity space's spacing groove 15, protruding piece 32 set up in the spacing groove 15, and protruding piece 32 with spacing groove 15 adopts clearance fit. The rotation angle of the transmission rod 3 is limited by the matching of the limiting groove 15 and the convex block 32, so that a series of problems that the connecting lead of the motor in the bracket and the transmission rod 3 is twisted off and the like when the transmission rod 3 rotates at a large angle are avoided.

The principle of the invention is as follows: the toothbrush head is driven to vibrate by the vibration motor positioned in the transmission rod 3, and the transmission rod 3 can be stabilized in the handle and can provide restoring force during vibration when vibrating through two sealing rings 7 arranged on the transmission rod 3; the support and the transmission rod are abutted, so that the transmission rod is prevented from retreating in the vibration process.

Example 2: referring to fig. 9, a gasket 300 is disposed at the front end of the bracket 2, the second plane 2a is located on the gasket 300, and the gasket 300 is an elastic gasket, which is the same as that in embodiment 1 in embodiment 2 and is not described herein again.

In embodiment 2, since the first plane and the second plane are a surface-to-surface fit and the second plane is formed on the elastic pad having elasticity, the vibration amplitude of the transmission rod is greatly increased by the elastic fit between the first plane and the second plane on the premise of the effect of embodiment 1.

In addition, through the setting of elastic gasket for the assembly precision of three parts of support, handle and transfer line is reduced, and is concrete, through the thickness of reasonable setting gasket, can effectively compensate the deviation of support precision on whole length, consequently, makes the support when by the extreme position in the slip handle, button part 200 and main control board can effectively aim at.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and description of the invention have been provided in the present application for the purpose of illustrating the principles of the present invention and are subject to various changes and modifications without departing from the spirit and scope of the invention, and it is understood that the compression chambers and discharge chambers may be provided in any other number in the present application. All such variations and modifications are intended to be within the scope of the claimed invention.

Claims (5)

1. Sound wave toothbrush, including the handle afterbody is provided with lid behind the handle, its characterized in that: the handle rear cover is provided with a convex rib, the rear end of the handle is provided with a convex rib limiting seat matched with the convex rib, and the handle rear cover further comprises a guide wall connected with the convex rib limiting seat and an ejection wall connected with the guide wall and inclined downwards along the guide wall.

2. The sonic toothbrush of claim 1, wherein: the toothbrush comprises a support, a transmission rod and a toothbrush head, wherein the support is fixedly arranged in the handle, the transmission rod is inserted in the handle, the toothbrush head is matched with the transmission rod, and a vibration motor is arranged in the transmission rod and close to the front end of the transmission rod.

3. The sonic toothbrush of claim 2, wherein: the battery compartment is arranged on the support, and the contact piece matched with the battery electrode in the battery compartment is arranged on the handle rear cover.

4. The sonic toothbrush of any one of claims 2 or 3, wherein: the handle is characterized in that a sliding groove is formed in the inner wall of the handle, a sliding rib matched with the sliding groove is arranged on the support, a fixing groove is formed in the inner wall of the handle, a buckle matched with the fixing groove is correspondingly arranged on the support, and the buckle is buckled into the fixing groove so that the support and the handle are fixedly matched.

5. The sonic toothbrush of claim 4, wherein: a gap is formed between the handle rear cover and the bracket.

Images