CN115192237B - Different-axis reverse-rotation electric toothbrush - Google Patents

Abstract

The invention discloses a counter-rotating electric toothbrush with different axes, which relates to the technical field of electric toothbrushes, and comprises a brush handle and a machine body base arranged at one end of the brush handle, wherein an installation cavity is coaxially arranged in the middle of the end part of the brush handle corresponding to one end of the machine body base; therefore, the two brush heads are attached to the surfaces of the adjacent teeth, so that the brush heads can thoroughly clean the adjacent teeth and the surfaces and the backs of the teeth at the same time, the cleaning efficiency of the electric toothbrush is improved, and the cleaning effect of the electric toothbrush is better.

Description

Different-axis reverse-rotation electric toothbrush

Technical Field

The invention relates to the technical field of electric toothbrushes, in particular to a counter-rotating electric toothbrush with different axes.

Background

Brushing is an important self-oral health care method for removing dental plaque, soft scale and food residues using toothbrushes, keeping the oral cavity clean; the traditional electric toothbrush is mainly characterized in that the traditional electric toothbrush is mainly provided with a brush head, a brush head is arranged on the brush head, the brush head is arranged on the brush head, and the brush head is arranged on the brush head.

Disclosure of Invention

The invention aims to provide a counter-rotating electric toothbrush with different axes, which is used for solving the problems in the prior art.

The invention is realized by the following technical scheme:

the utility model provides a counter-rotating electric toothbrush of different axle, includes the brush holder and locates the fuselage base of brush holder one end, the brush holder corresponds the fuselage base one end tip centre coaxial offer the installation cavity, install the power unit that extends to the installation cavity inside in the middle of the tip that fuselage base contacted with the brush holder, the output of power unit is connected with the brush-holder assembly through drive mechanism, the brush-holder assembly includes first brush pole and second brush pole, first brush pole and second brush pole are established at its surface respectively through the cover and intermeshing's first bevel gear and second bevel gear link to each other, and form Y type structure; the transmission mechanism comprises a transmission shaft and a connecting joint, one end of the transmission shaft is connected with the power mechanism, the other end of the transmission shaft is connected with the first brush rod through the connecting joint, the connecting joint comprises a first connecting body and a second connecting body, a clamping hole which is used for being matched with the end part of the transmission shaft is formed in the position, corresponding to the transmission shaft, of the bottom of the first connecting body, and the second connecting body is arranged at the top of the first connecting body and is connected with the end part of the first brush rod.

At present, most of traditional electric toothbrushes only have a single rotary disc type or rolling brush type brush head structure, when a user brushes teeth and uses the electric toothbrushes, the electric toothbrushes only can clean the outer surfaces of teeth each time, and as the tooth is an organ structure for chewing food in the oral cavity, after people eat the electric toothbrushes every day, food residues can be gathered on the surfaces of the teeth, the back and gaps of the teeth, so people always need to clean the teeth in all aspects when brushing teeth, the traditional electric toothbrushes are adopted, when the back of the teeth is cleaned, the users are more cumbersome and inconvenient to brush the back of the teeth, the users are required to put the toothbrush heads into the back of the teeth manually to clean, and because the invisible teeth and the tooth distribution in the oral cavity of the people are not flush, namely, an angle exists between adjacent tooth surfaces, the users are difficult to ensure that the brush heads are put in place, namely to be closely attached to the adjacent teeth in the oral cavity, and the teeth are brushed correctly, especially when children brush teeth, teeth are brushed, teeth are hard to clean the teeth, so that the teeth are not thoroughly cleaned, and the health of people is affected. Based on this, this scheme especially proposes a counter-rotating electric toothbrush of different axle, brush pole subassembly is connected through drive mechanism to its power unit's output, and brush pole subassembly includes first brush pole and second brush pole, and form Y type structure and run through to the outside of brush holder through first bevel gear and second bevel gear between first brush pole and the second brush pole, therefore when this electric toothbrush is being used to the user, first brush pole and second brush pole can drive the brush head counter-rotation respectively, so that two brush heads can brush simultaneously to the surface and the back of user's teeth, further, because form Y type structure between first brush pole and the second brush pole, also be the contained angle between first brush pole and the second montant, therefore overlap respectively and establish and also can exist a contained angle between two brush heads that run through to outside one end between two brush heads, and contained angle between two brush heads coincide each other with adjacent tooth, can use when using this electric toothbrush, can realize that two brush heads and adjacent brush head are laminated with each other, thereby the brush handle can not be satisfied with the electric toothbrush that the user's tooth has the better effect of cleaning when using, and the brush handle is more suitable for the user's tooth cleaning, and the more has the more than the effect of using that the brush handle is satisfied.

Preferably, the clamping hole is N-sided, where N is greater than or equal to 3, and it is to be noted that the shape of the clamping hole is not particularly limited in this application, when the clamping hole is manufactured, the clamping hole may be triangular, quadrangular or pentagonal according to practical requirements, in this scheme, the clamping hole is preferably triangular, and because the end portion of the transmission shaft is adapted to the clamping hole, the end portion of the transmission shaft is also triangular, so that after the transmission shaft is inserted into the clamping hole, the transmission shaft and the clamping hole are identical, and the transmission shaft is convenient to rotate and then drives the first brush rod through the connection node.

Preferably, the power mechanism comprises a driving motor and a driving shaft; one side of driving motor and the one end integrated into one piece of fuselage base, and the output is connected with the driving shaft, the driving shaft is kept away from driving motor's one end and is connected with the transmission shaft, and during specific work, after driving motor works, it can drive the driving shaft rotatory to make the driving shaft rotatory back drive the transmission shaft rotatory, and then provide power to first brush-holder stud and second brush-holder stud, so that it is rotatory.

Furthermore, the first brush rod and the second brush rod penetrate through one end outside the brush holder and are connected with the brush head, the brush head is conveniently rotated by the arrangement of the brush head, and then the brush head is driven to rotate to clean teeth of a user.

Preferably, the cross section of the brush head is in a Lailo triangle shape, the peripheral surface of the brush head is in an annular array shape, cleaning brush hair and a massage brush rod are alternately arranged, the top end of the massage brush rod is in a sphere shape, and the radial dimension of the massage brush rod is gradually decreased from top to bottom and is in circular arc transition; it should be noted that, because the triangle of lei luo has the same width in any direction, compare not only can save more materials than the brush head of cylinder, it is more stable in the high-speed rotation in addition, so as to ensure that the brush head rotates the back and carries out effective cleaning to the tooth, and avoid the brush head to rotate unstably and take place to rock and cause colliding with the tooth, simultaneously through the crisscross setting of cleaning brush hair and massage club, can make the brush hair also can massage the surface of tooth simultaneously when cleaning the tooth.

Still further, the brush holder also comprises a protection plate which is arranged at one end of the brush holder far away from the machine body base and takes the shape of an arc; when the toothbrush is specifically implemented, the arrangement of the protection plate can prevent the foam from splashing when the toothbrush head rolls in the oral cavity to generate the toothpaste foam, and meanwhile, the toothbrush head can be prevented from damaging the oral cavity and gum parts of a user due to excessive friction.

Preferably, two concave arc grooves are formed in the positions, corresponding to the first brush rod and the second brush rod, of the top of the protection plate, and a plurality of carding rods are vertically upwards arranged on the inner cambered surfaces of the concave arc grooves; the brushing device comprises a brushing head, a brushing rod and a brushing rod, wherein the brushing rod is arranged on the brushing head, and the brushing rod is arranged on the brushing head; the carding rod is preferably in a spindle shape in section and is arranged in a staggered manner according to the gaps of the cleaning bristles, so that the resistance of the carding rod to the bristles on the brush head is reduced, the carding rod is prevented from obstructing the rotation of the brush head, and the grooves are formed, so that the two brush heads can be limited, and the rotation stability of the brush heads is ensured.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) In the invention, because a Y-shaped structure is formed between the first brush rod and the second brush rod, namely an included angle exists between the first brush rod and the second vertical rod, an included angle exists between two brush heads respectively sleeved on one ends of the first brush rod and the second brush rod penetrating to the outside of the brush handle, the included angle between the two brush heads is matched with the included angle between adjacent teeth, so that a user can realize the joint between the two brush heads and the adjacent tooth surfaces during tooth brushing, the dead angle exists when the user cleans the teeth, the cleaning effect of the electric toothbrush is improved, the application range of the electric toothbrush is greatly improved, the use effect is better, and when the user brushes teeth by using the electric toothbrush, the first brush rod and the second brush rod can respectively drive the brush heads to reversely rotate, the surfaces of teeth and the backs of the user can be simultaneously brushed, and simultaneously, the joint between the included angle between the two brush heads and the adjacent tooth surfaces can be realized when the two brush heads are matched with each other, the joint between the two brush heads and the adjacent tooth surfaces can be realized, and the joint effect of the adjacent tooth surfaces can be avoided when the user brushes and the adjacent tooth surfaces of the user brushes are mutually cleaned, so that the cleaning effect of the electric toothbrush can be improved;

(2) In the invention, the cleaning brush hair and the massage brush rod are alternately arranged on the outer peripheral surface of the brush head in an annular array shape, and the top end of the massage brush rod is spherical, the radial dimension of the massage brush rod is gradually reduced from top to bottom and is in arc transition, so that when the brush hair is used for rotationally brushing and cleaning teeth, the massage ball rod can massage the surfaces of the teeth, thereby further improving the comfort of the electric toothbrush;

(3) Compared with the traditional flat gear transmission mechanism adopted by the electric teeth, the flat gear transmission mechanism has the advantages of high transmission efficiency, stable transmission ratio, stable and smooth transmission, reliable work, compact structure, low noise and the like.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present invention (first embodiment);

FIG. 2 is a schematic view of the engaging hole and end portion of the transmission shaft according to the present invention;

FIG. 3 is a schematic view of a shielding plate structure (second embodiment) according to the present invention;

FIG. 4 is a schematic view of a brush head according to the present invention;

FIG. 5 is a schematic diagram of the structure of the present invention (third embodiment);

FIG. 6 is a schematic view of the inward structure of A-A of the present invention;

FIG. 7 is a schematic view of a partially enlarged structure (top view of the adjusting mechanism) of the present invention B;

FIG. 8 is a schematic view of the end structure of the handle of the present invention;

FIG. 9 is a schematic view of the structure of the present invention at C partially enlarged (side view of the adjusting mechanism);

fig. 10 is a schematic view of a part of a chute (elastic positioning pin) according to the present invention.

In the above figures, the reference numerals correspond to the component names as follows:

1. a brush handle; 10. a mounting cavity; 2. a power mechanism; 20. a driving motor; 21. a driving shaft; 3. a transmission mechanism; 30. a transmission shaft; 31. a connecting joint; 310. a first connecting body; 3100. a clamping hole; 311. a second connector; 4. a brush head; 40. cleaning bristles; 41. a massage brush bar; 5. a protection plate; 50. a concave arc groove; 6. a fuselage base; 7. a first brush bar; 8. a second brush bar; 70. a first bevel gear; 80. and a second bevel gear.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.

First, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1

As shown in fig. 1, 2 and 4, the embodiment provides a counter-rotating electric toothbrush with different axes, which comprises a brush holder 1 and a machine body base 6 arranged at one end of the brush holder 1, wherein an installation cavity 10 is coaxially arranged in the middle of the end part of the brush holder 1 corresponding to the machine body base 6, a power mechanism 2 extending into the installation cavity 10 is arranged in the middle of the end part of the machine body base 6 contacted with the brush holder 1, the output end of the power mechanism 2 is connected with a brush rod assembly through a transmission mechanism 3, the brush rod assembly comprises a first brush rod 7 and a second brush rod 8, and the first brush rod 7 and the second brush rod 8 are respectively connected through a first bevel gear 70 and a second bevel gear 80 which are sleeved on the outer surface of the first brush rod 7 and the second brush rod 8 and are mutually meshed, and form a Y-shaped structure; the transmission mechanism 3 comprises a transmission shaft 30 and a connecting joint 31, one end of the transmission shaft 30 is connected with the power mechanism 2, the other end of the transmission shaft is connected with the first brush rod 7 through the connecting joint 31, the connecting joint 31 comprises a first connecting body 310 and a second connecting body 311, a clamping hole 3100 which is used for being matched with the end part of the transmission shaft 30 is formed in the position of the bottom of the first connecting body 310 corresponding to the transmission shaft 30, and the second connecting body 311 is arranged at the top of the first connecting body 310 and is connected with the end part of the first brush rod 7.

This scheme specially proposes a counter-rotating electric toothbrush of different axle, the brush-holder stud subassembly is connected through drive mechanism 3 to the output of its power unit 2, and the brush-holder stud subassembly includes first brush-holder stud 7 and second brush-holder stud 8, and there is an contained angle between first brush-holder stud 7 and the second brush-holder stud 8, and form Y type structure through first bevel gear 70 and second bevel gear 80 and run through to the outside of brush-holder stud 1, therefore when this electric toothbrush is being used to the user, first brush-holder stud 7 and second brush-holder stud 8 can drive brush head 4 counter-rotation respectively, so that two brush heads 4 can brush simultaneously to the surface and the back of user's teeth, further, because form Y type structure between first brush-holder stud 7 and the second brush-holder stud 8, also be equipped with a contained angle between two brush heads 4 on the outside one end of brush-holder stud 7 and second brush-holder stud 8 respectively, and the contained angle between two brush heads 4 and adjacent tooth can be used to the user's face of tooth and brush the electric brush, and the user's face of tooth is simultaneously brushed, and the brush is further, the brush is realized to the brush head is more in a large scale and the brush-holder stud 4 is used to the electric brush, and the brush is thereby the brush-holder stud 4 is more suitable for the user and the brush-holder stud is used to be cleaned.

It should be noted that, the fastening hole 3100 is N-sided, where N is greater than or equal to 3, and it should be noted herein that the shape of the fastening hole 3100 is not particularly limited, when the fastening hole 3100 may be triangular, quadrangular or pentagonal according to practical requirements during production, in this embodiment, the fastening hole 3100 is preferably triangular, and because the end of the driving shaft 30 is adapted to the fastening hole 3100, the end of the driving shaft 30 is also triangular, so that after the driving shaft 30 is inserted into the fastening hole 3100, the driving shaft 30 and the fastening hole 3100 may be identical, thereby facilitating the rotation of the driving shaft 30 and then driving the first brush rod 7 through the connection joint 31.

The power mechanism 2 includes a driving motor 20 and a driving shaft 21; one side of driving motor 20 is connected with one end integrated into one piece of fuselage base 6, and the output is connected with driving shaft 21, driving shaft 21 keeps away from driving motor 20's one end and is connected with transmission shaft 30, and during the concrete work, after driving motor 20 works, it can drive driving shaft 21 rotation to make driving shaft 21 rotate back drive transmission shaft 30 rotation, and then provide power to first brush-holder stud 7 and second brush-holder stud 8, so that it is rotatory.

It should be noted that, the first brush rod 7 and the second brush rod 8 penetrate through to the end outside the brush holder 1 and are all connected with the brush head 4, through the setting of the brush head 4, after the first brush rod 7 and the second brush rod 8 rotate, the brush head 4 is driven to rotate to clean the teeth of the user, and here it should be further noted that, in this scheme, the first brush rod 7 and the second vertical rod are connected through the first bevel gear 920 and the second bevel gear 921 which are respectively sleeved on the outer surfaces and meshed with each other, so when the first brush rod 7 rotates, the second brush rod 8 rotates along with the rotation of the first brush rod 7, but the rotation direction of the second brush rod 8 is opposite to the rotation direction of the first brush rod 7, so the brush head 4 can be driven to clean the teeth of the user in different directions through the mutual reverse rotation of the first brush rod 7 and the second vertical rod, so that the user brushes cleanly and thoroughly brush teeth.

Preferably, the cross section of the brush head 4 is in a lyocell triangle shape, the peripheral surface of the brush head 4 is in an annular array shape and is provided with cleaning brush hairs 40 and a massage brush rod 41 in a staggered manner, the top end of the massage brush rod 41 is in a spherical shape, and the radial dimension of the massage brush rod 41 is gradually decreased from top to bottom and is in arc transition; it should be noted that, because the leo triangle has the same width in any direction, compared with the cylindrical brush head 4, more materials can be saved, and the brush head 4 is more stable during high-speed rotation, so that teeth can be effectively cleaned after rotation, and collision caused by shaking of the brush head 4 due to unstable rotation can be avoided, and meanwhile, the staggered arrangement of the cleaning bristles 40 and the massage ball can enable the massaging ball to massage the surfaces of the teeth simultaneously when the bristles clean the teeth.

Example 2

On the basis of the embodiment 1, as shown in fig. 3 and 4, the counter-rotating electric toothbrush with different axes further comprises a protection plate 5 which is arranged at one end of the brush handle 1 far from the machine body base 6 and takes an arc shape; in particular, when the brush head 4 rolls in the oral cavity to generate toothpaste foam, the arrangement of the protection plate 5 can block the foam to prevent the toothpaste foam from splashing, and meanwhile, the brush head 4 can be prevented from causing excessive friction to the oral cavity and gum of a user to injure the user.

It should be noted that, two concave arc grooves 50 are arranged at the positions of the top of the protection plate 5 corresponding to the first brush rod 7 and the second brush rod 8, and a plurality of carding rods are vertically and upwardly arranged on the inner cambered surface of the concave arc groove 50; it should be noted that, the carding bar is provided in the scheme, because the brush head 4 bends and winds the brush hair on the brush head 4 after brushing teeth for a long time when the toothbrush is actually used, and the brush hair on the surface of the brush head 4 can be carded by the carding bar when the brush head 4 rotates, so that the brush hair winding is avoided to influence the cleaning effect of the brush head 4; the carding rod is preferably in a spindle shape in section and is staggered according to the gaps of the cleaning bristles 40, so that the resistance of the carding rod and the bristles on the brush head 4 is reduced, the carding rod is prevented from obstructing the rotation of the brush head 4, and the grooves are formed, so that the two brush heads 4 can be limited, and the rotation stability of the brush head 4 is ensured.

Example 3

As shown in fig. 5 to 10, this embodiment proposes a counter-rotating electric toothbrush with different axes based on embodiment 1 and embodiment 2, and this embodiment only describes the differences from the above-mentioned embodiments, and includes a brush holder and a machine body base disposed at one end of the brush holder, wherein an installation cavity is coaxially disposed in the middle of an end portion of the brush holder corresponding to the machine body base, a power mechanism extending into the installation cavity is mounted in the middle of an end portion of the machine body base contacting the brush holder, an output end of the power mechanism is connected with a first transmission shaft and a second transmission shaft through an angle-adjustable transmission mechanism, the first transmission shaft and the second transmission shaft form a V-shaped structure, and one end far from the angle-adjustable transmission mechanism penetrates to the outside of the brush holder; the angle-adjustable transmission mechanism comprises a first bevel gear, a second bevel gear and an end face gear, wherein the first bevel gear is sleeved on a first transmission shaft, the second bevel gear is sleeved on a second transmission shaft, the outside of the second bevel gear is rotationally connected with the inside of the brush holder through a support frame sleeved on the outer surface of the second bevel gear, the end face gear is in gear shaft connection with the inside of the brush holder and meshed with the first bevel gear and the second bevel gear respectively, and an end part of the brush holder, far away from a machine body base, is also provided with an adjusting mechanism for pushing the second transmission shaft to conduct angle adjustment corresponding to the penetrating position of the second transmission shaft.

In the embodiment, the output end of the power mechanism is respectively connected with the first transmission shaft and the second transmission shaft through the angle-adjustable transmission mechanism, and the first transmission shaft and the second transmission shaft form a V-shaped structure and penetrate through the outside of the brush holder, so that when a user brushes teeth by using the electric toothbrush, the first transmission shaft and the second transmission shaft can respectively drive the brush heads to reversely rotate, so that the two brush heads can brush the surfaces and the backs of teeth of the user simultaneously, and further, because the V-shaped structure is formed between the first transmission shaft and the second transmission shaft, an included angle is formed between the two brush heads respectively sleeved on one end, penetrating through the outside of the brush holder, of the first transmission shaft and the second transmission shaft, and the included angle between the two brush heads is mutually matched with the included angle between adjacent teeth, the two brush heads can be bonded with the adjacent tooth surfaces when the user brushes teeth, so that dead angles exist when the user cleans the teeth, and the cleaning effect of the electric toothbrush is improved; meanwhile, it should be noted that in this scheme, still be equipped with angularly adjustable drive mechanism and adjustment mechanism, therefore when this electric toothbrush is used to brush teeth and clean at different users, accessible angularly adjustable drive mechanism and adjustment mechanism are adjusted the angle of second transmission shaft, that is, under the circumstances that does not influence the rotation of second transmission shaft, promote the second transmission shaft through angularly adjustable drive machine through adjustment mechanism and overturn certain angle, adjust the size to the contained angle between second transmission shaft and the first transmission shaft, make it can be suitable for different users, because different users, its oral cavity space and tooth distribution situation (angle) are different, this scheme is through adjusting the contained angle between second transmission shaft and the first transmission shaft, make it can satisfy different users 'needs of brushing teeth, and then promote electric toothbrush's application scope greatly, make its result of use better.

It should be further noted that, the adjusting mechanism in this embodiment includes a chute, a slider, a connecting rod and a bearing ring, the chute is transversely opened on an end face of the brush holder far away from the machine body base, and two opposite sides are respectively opened with a groove, a positioning hole is provided above the inside of the groove, the slider is slidably embedded in the chute, two sides are connected with a convex plate extending into the groove, the convex plate is integrally formed with the slider, the top is provided with an elastic positioning pin adapted to the positioning hole, one end of the connecting rod is connected with the slider, and the other end is connected with the bearing ring sleeved on the second transmission shaft, the bearing ring is in rolling connection with the second transmission shaft, and it should be noted here that, in order to avoid the bearing ring from obstructing the deflection of the second transmission shaft, the inner hole diameter of the bearing ring is larger than the outer diameter of the second transmission shaft, that is, and there is a radial gap between the bearing ring and the second transmission shaft, so that the second transmission shaft deflects in the bearing ring; meanwhile, the elastic locating pin comprises a cavity, a button, a cross rod, a locating rod and an elastic piece, wherein the cavity is positioned in the sliding block, two sides of the cavity extend to the inside of the convex plate, the button is arranged in the middle of the top of the sliding block, the bottom end of the button penetrates into the inside of the cavity, the cross rod is symmetrically arranged at two sides of the bottom end of the button, the length direction of the cross rod is parallel to the extending direction of the cavity, the locating rod is vertically arranged at the upper part of the convex plate, the bottom end of the locating rod penetrates into the inside of the convex plate and is connected with one end, far away from the button, of the cross rod, the elastic piece is vertically arranged between the lower end face of the button and the bottom of the cavity, and the depth of the locating hole is equal to the elastic telescopic length of the elastic piece; when the angle between the second transmission shaft and the first transmission shaft is adjusted, a user can press the button firstly, so that the button is pressed to move downwards and push the elastic piece to compress, after the button moves downwards, the positioning rod is driven by the cross rod to pass through the convex plate to move downwards, so that the top end of the positioning rod moves out of the positioning hole after the positioning rod moves downwards, after the positioning rod moves out of the positioning hole, the user can push the sliding block to slide along the length direction of the sliding groove in the sliding groove, the sliding block can push the bearing ring to slide through the connecting rod, the bearing ring can further slide and then drive the second transmission shaft to penetrate to one end outside the brush holder to deflect and slide, and when the second transmission shaft penetrates to one end outside the brush holder to deflect and slide, the other end of the second transmission shaft can drive the second bevel gear to deflect through the inside the brush holder, so that the angle between the first transmission shaft and the second transmission shaft can be adjusted through the deflection of the second transmission shaft, and the application range of the electric toothbrush can be further improved, the requirements of different users can be met, and the requirements of brushing teeth can be further met.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (3)

1. The utility model provides a counter-rotating electric toothbrush of different axle, includes brush holder (1) and locates fuselage base (6) of brush holder (1) one end, its characterized in that, brush holder (1) corresponds in the middle of the one end tip of fuselage base (6) has coaxially offered installation cavity (10), install power unit (2) that extend to installation cavity (10) inside in the middle of the tip that fuselage base (6) contacted with brush holder (1), the output of power unit (2) is connected with brush bar subassembly through drive mechanism (3), brush bar subassembly includes first brush bar (7) and second brush bar (8), first brush bar (7) and second brush bar (8) are connected through cover establish its surface and intermeshing's first bevel gear (70) and second bevel gear (80) respectively to form Y type structure;

the transmission mechanism (3) comprises a transmission shaft (30) and a connecting joint (31), one end of the transmission shaft (30) is connected with the power mechanism (2), the other end of the transmission shaft is connected with the first brush rod (7) through the connecting joint (31), the connecting joint (31) comprises a first connecting body (310) and a second connecting body (311), a clamping hole (3100) which is used for being matched with the end part of the transmission shaft (30) is formed in the position, corresponding to the transmission shaft (30), of the bottom of the first connecting body (310), and the second connecting body (311) is arranged at the top of the first connecting body (310) and is connected with the end part of the first brush rod (7);

one end of the first brush rod (7) and one end of the second brush rod (8) penetrating through the brush handle (1) are connected with the brush head (4), the cross section of the brush head (4) is in a Lailo triangle shape, cleaning bristles (40) and massage brush rods (41) are alternately arranged on the outer peripheral surface of the brush head (4) in an annular array shape, the top end of each massage brush rod (41) is spherical, the radial size of each massage brush rod is gradually decreased from top to bottom, and the radial size of each massage brush rod is in circular arc transition;

still including setting up the one end that fuselage base (6) was kept away from to brush holder (1), and be curved guard plate (5), the top of guard plate (5) corresponds first brush-holder stud (7) and second brush-holder stud (8) position department and is equipped with two concave arc grooves (50), the intrados of concave arc groove (50) is vertically upwards equipped with a plurality of carding bars, and wherein a plurality of the cross-section of carding bar is spindle to set up according to the clearance of clean brush hair is crisscross.

2. The counter-rotating, electric toothbrush of claim 1, wherein the snap-in hole (3100) is N-sided, wherein N is 3 or more.

3. The counter-rotating electric toothbrush according to claim 1, characterized in that the power mechanism (2) comprises a drive motor (20) and a drive shaft (21); one side of the driving motor (20) is integrally formed with one end of the machine body base (6), the output end of the driving motor is connected with the driving shaft (21), and one end of the driving shaft (21) away from the driving motor (20) is connected with the transmission shaft (30).