CN209032701U

CN209032701U - Double end is back and forth to rolling electric toothbrush head and double end back and forth to rolling electric toothbrush

Info

Publication number: CN209032701U
Application number: CN201820995629.8U
Authority: CN
Inventors: 王众城; 邓小姿; 王翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-27
Filing date: 2018-06-27
Publication date: 2019-06-28
Anticipated expiration: 2028-06-27

Abstract

Double end is back and forth to rolling electric toothbrush head and double end back and forth to rolling electric toothbrush, it is related to implement for personal cleaning technical field, above-mentioned double end includes back and forth two brush head main bodys for being implanted with bristle to rolling electric toothbrush head, two for driving the brush head main body back and forth to the shaft of rolling and a brush holder support that can be detachably connected with toothbrush lever, each brush head main body is equipped with the toothed projections portion towards another brush head main body, in same brush head main body, groove is formed between two neighboring toothed projections portion, in the corresponding groove for being inserted into another brush head main body in the toothed projections portion of one brush head main body, the shaft is threaded through in brush holder support and its top is connect with brush head main body.Cleaning effect, safety and wholesomeness back and forth can admirably be taken into account to rolling electric toothbrush using the double end of above-mentioned brush head, it is very easy to use, it is more importantly that the vibratory output when power toothbrush workpiece is very small, the process brushed teeth is very comfortable, and user experience is splendid.

Description

Double end is back and forth to rolling electric toothbrush head and double end back and forth to rolling electric toothbrush

Technical field

The utility model relates to implement for personal cleaning technical field more particularly to a kind of double ends back and forth to rolling electric toothbrush brush Head and double end are back and forth to rolling electric toothbrush.

Background technique

Current electric toothbrush mostly uses greatly following teeth brushing way: 1, using being similar to cylindrical brush head unidirectionally along tooth spiral Turn to brush teeth, Typical Representative has " double rice " toothbrush of big heat for the previous period.2, it is brushed teeth using discoidal brush head single direction rotation, it is typical Represent " Ou Le B " toothbrush for having German Bo Lang company.3, it is brushed teeth using the brush head vibration similar with common manual Tooth-brush structure, allusion quotation Type represents the electric toothbrush for having Philip and millet brand.

Above-mentioned 1st kind of electric toothbrush is due to brush head single direction rotation during brushing teeth, to prevent toothpaste foam from the back side It throwing away, needs to be arranged the backboard for stopping foam, the increase of backboard causes brush head partially thick, and in the gap between brush head and backboard Also it is easy to shelter evil people and countenance evil practices, wholesomeness is to be improved.Disc brush head of the 2nd kind of electric toothbrush due to using single direction rotation, it is right The cleaning effect of teeth crevice is not satisfactory, brushes teeth energetically be also easy to damage facing for a long time, and excessive horizontal also will cause tooth Body wedge groove.Cleaning effect is bad when 3rd kind of acoustic wave vibrations toothbrush uses low or first gear, and teeth space cleaning effect is worse, uses There is preferable facing cleaning effect, but still undesirable for the cleaning effect in teeth crevice when top gear, simultaneously because brush Head vibration force is too strong, and power supply must be first closed when brush head is taken out from oral cavity, is otherwise easy to appear that foam is horizontal to fly to make clothing dirty Situation.

The Chinese invention patent document of Publication No. " CN106579736A " discloses a kind of double end to rolling toothbrush, the double end Rolling toothbrush is used and is brushed teeth along tooth mode, it is preferable for the cleaning effect of teeth crevice, gum and facing will not be damaged, brush head is easy Clean and without corner or spot as yet untouched by a clean-up campaign, regrettably the double end is Manual structure to rolling toothbrush, although it has many advantages, such as, if It can be transformed into electric toothbrush, using would be much more convenient.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of double ends back and forth to rolling electric toothbrush head, which adopts With structure different from the past, cleaning effect, peace back and forth can be combined to rolling electric toothbrush using the double end of the brush head Full property and wholesomeness.

In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: a kind of double end is back and forth electronic to rolling Toothbrush head, including two brush head main bodys for being implanted with bristle, two for drive the brush head main body back and forth to the shaft of rolling with And a brush holder support that can be detachably connected with toothbrush lever, each brush head main body are equipped with the tooth form towards another brush head main body Lug boss forms groove, the toothed projections of a brush head main body in same brush head main body between two neighboring toothed projections portion In the corresponding groove for being inserted into another brush head main body in portion, the shaft is threaded through in brush holder support and its top is connect with brush head main body.

Preferably, it is at least equipped in the bottom end of a shaft for being detachably connected with the brush head driving device in lever Connection structure.

In one embodiment of the utility model, a pair of of pitch wheel is installed in above-mentioned two shafts, In the rotation of shaft when another shaft can be driven back and forth to rotate backward by the pitch wheel.

Further, one group of crank and rocker mechanism is equipped in the brush holder support inner cavity, the crank and rocker mechanism includes song Handle, rocking bar and connecting rod, one end of the rocking bar connect a shaft other end and connect connecting rod, and the connecting rod is set to crank and rocking bar Between and the two is sequentially connected, by driving the crank to rotate, two shafts may make back and forth to rotate backward.

In another embodiment of the utility model, two groups of crank and rocker mechanisms, institute are equipped in the brush holder support inner cavity Stating crank and rocker mechanism includes crank, rocking bar and connecting rod, and one end connection shaft of the rocking bar, the other end connect connecting rod, described Connecting rod is set between crank and rocking bar and the two is sequentially connected, and by driving the crank to rotate, may make two shafts past It rotates backward again.

Preferably, above-mentioned two groups of crank and rocker mechanisms share a crank, and two connecting rods are both connected on the crank.

Preferably, aforementioned coupling structure includes the connector that both ends are equipped with jack, and nipple tip is inserted into the bottom end of the shaft Jack in, the jack of the connector bottom end is used for the power output shaft of connection brush head driving device.

As the another aspect of the utility model, the utility model also provides a kind of double end back and forth to rolling electric toothbrush, Double end including lever and any one of the above structure is back and forth to rolling electric toothbrush head, and the double end is back and forth to rolling electric tooth Brush brush head is removably connected to lever, and motor, rechargeable battery or removable for connecting are equipped in the inner cavity of the lever The pole piece of battery is changed, the motor back and forth connect and with turn the shaft of rolling electric toothbrush head with double end by transmission mechanism Axis back and forth rotates backward, and then drives the double end back and forth to two brush head main bodys of rolling electric toothbrush head back and forth to rolling.

Preferably, in one embodiment of the utility model, the double end back and forth to rolling electric toothbrush include lever and Double end is back and forth to rolling electric toothbrush head, and the double end is back and forth removably connected to lever to rolling electric toothbrush head, described Motor, rechargeable battery or pole piece and two groups of crank rocker machines for connecting replaceable battery are equipped in the inner cavity of lever Structure, the motor are electrically connected with rechargeable battery or pole piece, and the crank and rocker mechanism is located at the top of motor, the crank Rocker device includes crank, rocking bar and connecting rod, and one end connection shaft of the rocking bar, the other end connect connecting rod, and the connecting rod is set It is sequentially connected between crank and rocking bar and by the two, the crank is connect with motor drive, two songs of the motor driven Handle rotation, may make two shafts back and forth to rotate backward, to realize brush head main body back and forth to rolling.

Further, aforementioned two groups of crank and rocker mechanisms share a crank, and two connecting rods are both connected on the crank, institute The rotation of the motor driven crank is stated, may make two shafts back and forth to rotate backward, to realize brush head main body back and forth to rolling.

In another embodiment of the utility model, aforementioned double end includes back and forth lever and double end to rolling electric toothbrush Back and forth to rolling electric toothbrush head, it is equipped in above-mentioned double end back and forth two shafts to rolling electric toothbrush head a pair of mutual Meshed gears, the double end are back and forth removably connected to lever to rolling electric toothbrush head, are equipped in the lever inner cavity Motor, rechargeable battery or pole piece and one group of crank and rocker mechanism for connecting replaceable battery, the motor with can Rechargeable battery or pole piece electrical connection, the crank and rocker mechanism are located at the top of motor, and the crank and rocker mechanism includes song Handle, rocking bar and connecting rod, one end of the rocking bar connects a shaft, the other end connects connecting rod, and the connecting rod is set to crank and shakes It is sequentially connected between bar and by the two, the crank is connect with motor drive, and the motor driven crank rotation may make with before The shaft reciprocating rotation for stating rocking bar connection drives another shaft by above-mentioned pitch wheel when the shaft reciprocating rotation It back and forth rotates backward, to drive brush head main body back and forth to rolling.

In another embodiment of the utility model, aforementioned double end includes back and forth lever and double end to rolling electric toothbrush Back and forth to rolling electric toothbrush head, the double end is back and forth removably connected to lever to rolling electric toothbrush head, with aforementioned implementation Unlike example, pitch wheel is arranged in the inner cavity of the lever, likewise, in the inner cavity of the lever also Equipped with motor, rechargeable battery or pole piece and one group of crank and rocker mechanism for connecting replaceable battery, the motor It is electrically connected with rechargeable battery or pole piece, the crank and rocker mechanism is located at the top of motor, the crank and rocker mechanism packet Crank, rocking bar and connecting rod are included, one end of the rocking bar connect connecting rod, the company with one of gear drive connection, the other end Bar is set between crank and rocking bar and the two is sequentially connected, and the crank is connect with motor drive, and the double end is back and forth to rolling Two shafts of electric toothbrush head are connect with a gear respectively, and the motor driven crank rotation may make described mutual Meshed gears rotation, and then two shafts is driven back and forth to rotate backward.

Double end provided by the utility model back and forth drives the brush for being implanted with bristle to rolling electric toothbrush head using two shafts Head main body is brushed teeth to realize along tooth back and forth to rolling.The teeth brushing way not only ensure that the cleaning effect of teeth crevice, but also very big journey Facing caused by laterally brushing teeth energetically is avoided to degree to damage.Since the brush head is made back and forth to move rolling during brushing teeth, when The amplitude that brush head main body moves back and forth is designed to that the spacing between upper lower gum matches (to move back and forth by driving mechanism Amplitude controls) when, so that it may avoid the problem that swiping that amplitude is excessive leads to gingival lesions well up and down.More importantly It is that the brush head can accomplish thickness same as common manual toothbrush and hide dirty dead angle there is no apparent, and comfort is more preferably It is more convenient for cleaning, it is relatively sanitary.Compared with the manual double end in background technique is to rolling Tooth-brush structure, the utility model will drive and brush The shaft of head bulk motion is threaded through in brush holder support, is thoroughly avoided the shaft rotated when brushing teeth and is touched oral cavity muscle or lip The case where, there is higher safety.In addition, the utility model is by cancelling former manual double end to two brushes of connection in rolling toothbrush The hinge of head main body has fully ensured that the rotation amplitude and rotation smooth degree of brush head main body, has further improved comfort. In conclusion the utility model has combined cleaning effect, comfort and wholesomeness for more existing electric toothbrush Balance between three, compared with the manual double end in background technique is to rolling toothbrush, the utility model is in actual use more It is convenient and comfortable, while also there is higher safety.What is particularly worth mentioning is that since the utility model is using reciprocal right The design of rolling, for electric toothbrush, symmetrical configuration and rotation direction are opposite to be can be designed so that in two rotation directions Vibration mutually balance, the vibratory output and noise that lever can be experienced when brushing teeth are very low.

Detailed description of the invention

Fig. 1 is double end involved by the utility model back and forth to the schematic perspective view of rolling electric toothbrush head；

Fig. 2 is schematic diagram of internal structure of the electronic double end shown in Fig. 1 to rolling head toothbrushes；

Fig. 3 is schematic perspective view of the electronic double end involved by the utility model to rolling toothbrush；

Fig. 4 is schematic diagram of internal structure of the electronic double end involved by embodiment 1 to rolling toothbrush；

Fig. 5 be Fig. 4 shown in electronic double end to rolling toothbrush in, the attachment structure schematic diagram of brush head main body and shaft；

Fig. 6 is the exploded view of Fig. 5；

Fig. 7 is the partial enlarged view at the position A in Fig. 4；

Fig. 8 is schematic diagram of internal structure of the electronic double end involved by embodiment 2 to rolling toothbrush；

Fig. 9 is the partial enlarged view at the position A in Fig. 8；

Figure 10 is electronic double end involved by embodiment 3 in rolling toothbrush, and the connection structure of brush head driving device and shaft is illustrated Figure；

Figure 11 is electronic double end involved by embodiment 4 in rolling toothbrush, and the connection structure of brush head driving device and shaft is illustrated Figure；

Figure 12 be embodiment 4 involved by electronic double end to rolling toothbrush in, the attachment structure schematic diagram of brush head main body and shaft；

In figure:

1 --- brush head main body 2 --- shaft 3 --- brush holder support

4 --- gear 6 --- connector 7 --- motors

8 --- toothed projections portions rechargeable battery 9 --- rechargeable battery 1a ---

1b --- groove 5a --- crank 5b --- rocking bar

5c --- connecting rod.

Specific embodiment

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention. Term " connection " also refers to being connected directly between two components, is also possible to being indirectly connected with by intermediary, answers When understanding its corresponding meaning according to specific circumstances.

Embodiment 1:

Fig. 3 and 4 shows double end involved by the present embodiment back and forth to the overall structure of rolling electric toothbrush, generally speaking, is somebody's turn to do Double end includes back and forth lever and double end back and forth to rolling electric toothbrush head two large divisions to rolling electric toothbrush, and aforementioned double end is back and forth right Rolling electric toothbrush head is removably connected to lever.As shown in Fig. 1,2,5 and 6, the double end is back and forth to rolling electric toothbrush head packet Two brush head main body 1, two for being implanted with bristle are included for driving brush head main body 1 back and forth can be with tooth to the shaft of rolling 2 and one The brush holder support 3 that brush spindle is detachably connected, each brush head main body 1 are equipped with the toothed projections portion 1a towards another brush head main body 1, In same brush head main body 1, groove 1b, the toothed projections of a brush head main body 1 are formed between two neighboring toothed projections portion 1a In the corresponding groove 1b for being inserted into another brush head main body 1 of portion 1a, shaft 2 is threaded through in brush holder support 3 and its top and brush head main body 1 Connection.Motor 7, rechargeable battery 8 or pole piece (company of being used for for connecting replaceable battery are equipped in the inner cavity of lever The pole piece for connecing replaceable battery is not shown in the accompanying drawings) and two groups of crank and rocker mechanisms, motor 7 and rechargeable battery 8 or Pole piece electrical connection, crank and rocker mechanism are located at the top of motor 7.As shown in Figure 7, which includes crank 5a, shakes One end connection shaft 2 of bar 5b and connecting rod 5c, rocking bar 5b, the other end connect connecting rod 5c, and connecting rod 5c is set to crank 5a and rocking bar 5b Between and the two is sequentially connected, in Fig. 7, two groups of crank and rocker mechanisms share a crank 5a, and two connecting rod 5c are all connected with On crank 5a, motor 7 drives crank 5a rotation, that is, two shafts 2 may make back and forth to rotate backward (the utility model institute " back and forth the rotating backward " stated refers to that two 2 reciprocation cycles of shaft rotate contrary rotary motion).

It should be noted that can also design every group of crank and rocker mechanism when practical application includes a crank 5a, example Such as can two upright bars of eccentric setting (upright bar quantity be 1) in Fig. 7 on a turntable, turning for two upright bars should be provided with Disk is actually equivalent to be two crank 5a, and by after the power output axis connection of the axle center of the turntable and motor 7, motor 7 is driven The rotation of turn disk (drives two crank 5a to rotate synchronously), and two shafts 2 can equally be made back and forth to rotate backward, thus real Existing two brush head main bodys 1 are back and forth to rolling.In addition, in the present embodiment, the bottom end of shaft 2 is equipped with for driving with the brush head in lever The connection structure that dynamic device (i.e. motor with crank and rocker mechanism) is detachably connected.Specifically, which includes both ends The bottom end of connector 6 equipped with jack, shaft 2 is inserted into the jack on 6 top of connector, and the jack of 6 bottom end of connector is used for connection brush head The power output shaft of driving device.

It is emphasized that crank and rocker mechanism is not limited to be arranged in the inner cavity of lever when production application, Such as can also be disposed in the inner cavity of brush holder support 3, but it will be appreciated by those skilled in the art that, crank and rocker mechanism is set Setting in the inner cavity of brush holder support 3 is not preferably embodiment, since brush head is the consumables for being frequently necessary to replacement, in brush holder support 3 Inner cavity in setting crank and rocker mechanism will lead to brush head manufacture and replacement cost increase.

Embodiment 2:

Fig. 8 and 9 shows double end involved by the present embodiment back and forth to the overall structure of rolling electric toothbrush, not with embodiment 1 With in figs. 8 and 9, the power output shaft of motor 7 is not direct-connected with crank 5a, but passes through one group of reduction gearing It is indirectly connected with crank 5a, it is excessively high for 7 revolving speed of motor, in the case of torque is relatively low, can achieve drop after train of reduction gears is added The slow-speed of revolution, the purpose for improving torque.

Embodiment 3:

The present embodiment is essentially the same in the structure and embodiment 1 of brushhead portion, and difference essentially consists in motor 7 and shaft Drive mechanism design between 2, as shown in Figure 10, the drive mechanism that the present embodiment is arranged in lever inner cavity includes one group of crank Rocker device and a pair of of pitch wheel 4, one end of the rocking bar 5b of crank and rocker mechanism and one of gear 4 pass Dynamic connection, the other end connect connecting rod 5c, and connecting rod 5c is set between crank 5a and rocking bar 5b and the two is sequentially connected, crank 5a with Motor 7 is sequentially connected, and double end back and forth connect two shafts 2 of rolling electric toothbrush head with a gear 4 respectively, and such one Come, crank 5a rotation is driven by motor 7, so that it may so that pitch wheel 4 rotates, and then drive two shafts 2 reciprocal It rotates backward.

Embodiment 4:

As different from Example 3, in the present embodiment, aforementioned pitch wheel 4 is mounted in two shafts 2 (i.e. gear 4 is arranged in the inner cavity of brush holder support 3), wherein a shaft 2 can pass through above-mentioned 4 band of pitch wheel when rotating Another shaft 2 is moved back and forth to rotate backward.In the same manner as in Example 3, the crank and rocker mechanism being arranged in lever inner cavity is one group And the crank and rocker mechanism is located at the top of motor 7, by one end connection of rocking bar 5b, wherein a shaft 2, the other end are connected Connecting rod 5c, then crank 5a and motor 7 are sequentially connected, it drives crank 5a rotation that can drive by motor 7 and is connect with rocking bar 5b Shaft 2 rotate, drive reciprocal reversed turn of another shaft 2 when which rotates again by above-mentioned pitch wheel 4 It is dynamic, to realize brush head main body 1 back and forth to rolling.It will be appreciated by those skilled in the art that since brush head is disappearing of need to regularly replacing Gear 4 is arranged in the inner cavity of brush holder support 3 and rises the manufacture that will lead to brush head and replacement cost by consumption product.

Compared with existing electric toothbrush, above-mentioned double end back and forth uses rolling electric toothbrush and brushes teeth along tooth mode, ensure that The cleaning effect of teeth crevice, at the same avoid laterally brush teeth energetically caused by facing damage, furthermore the brush head of the toothbrush can be with Accomplish thickness same as common manual toothbrush and hide dirty dead angle there is no apparent, comfort is more preferably also more convenient for cleaning, more Add health, when actual production, the amplitude that brush head main body moves back and forth can be designed to that the spacing between upper lower gum matches (being controlled by driving mechanism reciprocation amplitude) can so avoid swiping that amplitude is excessive to be caused up and down well The problem of gingival lesions.And compared with existing manual double end is to rolling Tooth-brush structure, the utility model will drive brush head main body fortune Dynamic shaft is threaded through in brush holder support, thoroughly avoids the case where shaft rotated when brushing teeth touches oral cavity muscle or lip, With higher safety.In addition, the utility model is by cancelling former manual double end to two brush head main bodys of connection in rolling toothbrush Hinge, fully ensured that brush head main body rotation amplitude and rotation smooth degree, further improve comfort.To sum up institute State, for more existing electric toothbrush, the utility model combined cleaning effect, comfort and wholesomeness three it Between balance, with the manual double end in background technique to rolling toothbrush compared with, the utility model in actual use it is more convenient and Comfortably, while also there is higher safety.What is particularly worth mentioning is that back and forth being set to rolling since the utility model uses Meter, for electric toothbrush, symmetrical configuration and the vibration that can be designed so that in two rotation directions of rotation direction on the contrary Mutually balance, the vibratory output and noise that lever can be experienced when brushing teeth are very low.

Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design Within enclosing.

In order to allow those of ordinary skill in the art more easily understand the improvement of the utility model compared with the existing technology it Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one A little other elements, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the interior of the utility model Hold.

Claims

1. double end is back and forth to rolling electric toothbrush head, described for driving including two brush head main bodys (1) for being implanted with bristle, two The brush holder support (3) that brush head main body (1) back and forth can be detachably connected the shaft of rolling (2) and one with toothbrush lever, each brush head Main body (1) is equipped with the toothed projections portion (1a) towards another brush head main body (1), on same brush head main body (1), adjacent two Groove (1b) is formed between a toothed projections portion (1a), the corresponding insertion in the toothed projections portion (1a) of a brush head main body (1) is another In the groove (1b) of a brush head main body (1), the shaft (2) is threaded through in brush holder support (3) and its top and brush head main body (1) connect It connects.

2. double end according to claim 1 is back and forth to rolling electric toothbrush head, it is characterised in that: pacify on two shafts (2) Equipped with a pair of of pitch wheel (4), wherein the pitch wheel (4) band can be passed through when shaft (2) rotation Another shaft (2) is moved back and forth to rotate backward.

3. double end according to claim 1 is back and forth to rolling electric toothbrush head, it is characterised in that: in the brush holder support (3) Two groups of crank and rocker mechanisms are equipped in chamber, the crank and rocker mechanism includes crank (5a), rocking bar (5b) and connecting rod (5c), described One end connection shaft (2), other end connection connecting rod (5c) of rocking bar (5b), the connecting rod (5c) are set to crank (5a) and rocking bar It is sequentially connected between (5b) and by the two, by driving the crank (5a) to rotate, may make reciprocal reversed turn of two shafts (2) It is dynamic.

4. double end according to claim 3 is back and forth to rolling electric toothbrush head, it is characterised in that: two groups of crank rockers Mechanism shares a crank (5a), and two connecting rods (5c) are both connected on the crank (5a).

5. double end according to claim 2 is back and forth to rolling electric toothbrush head, it is characterised in that: in the brush holder support (3) One group of crank and rocker mechanism is equipped in chamber, the crank and rocker mechanism includes crank (5a), rocking bar (5b) and connecting rod (5c), described One end of rocking bar (5b) connects a shaft (2), other end connection connecting rod (5c), and the connecting rod (5c) is set to crank (5a) and shakes It is sequentially connected between bar (5b) and by the two, by driving the crank (5a) to rotate, may make that two shafts (2) are reciprocal reversed Rotation.

6. double end is back and forth to rolling electric toothbrush, it is characterised in that: including described in any one of lever and claim 1-5 Double end is back and forth to rolling electric toothbrush head, and the double end is back and forth removably connected to lever to rolling electric toothbrush head, described Motor (7), rechargeable battery (8) or the pole piece for connecting replaceable battery, the motor (7) are equipped in the inner cavity of lever Back and forth the shaft (2) of rolling electric toothbrush head is connect with double end by transmission mechanism and shaft (2) is driven back and forth to rotate backward, And then drive the double end back and forth to two brush head main bodys (1) of rolling electric toothbrush head back and forth to rolling.

7. double end is back and forth to rolling electric toothbrush, it is characterised in that: including lever and double end described in claim 1 back and forth to rolling Electric toothbrush head, the double end is back and forth removably connected to lever to rolling electric toothbrush head, in the inner cavity of the lever Equipped with motor (7), rechargeable battery (8) or pole piece and two groups of crank and rocker mechanisms for connecting replaceable battery, institute It states motor (7) to be electrically connected with rechargeable battery (8) or pole piece, the crank and rocker mechanism is located at the top of motor (7), described Crank and rocker mechanism includes crank (5a), rocking bar (5b) and connecting rod (5c), one end connection shaft (2) of the rocking bar (5b), another One end connects connecting rod (5c), and the connecting rod (5c) is set between crank (5a) and rocking bar (5b) and the two is sequentially connected, described Crank (5a) is sequentially connected with motor (7), and the motor (7) drives two crank (5a) rotations, may make two shafts (2) Back and forth rotate backward.

8. double end according to claim 7 is back and forth to rolling electric toothbrush, it is characterised in that: two groups of crank and rocker mechanisms A crank (5a) is shared, two connecting rods (5c) are both connected on the crank (5a), and the motor (7) drives the crank (5a) to turn It is dynamic, it may make two shafts (2) back and forth to rotate backward.

9. double end is back and forth to rolling electric toothbrush, it is characterised in that: including lever and double end as claimed in claim 2 back and forth to rolling Electric toothbrush head, the double end is back and forth removably connected to lever to rolling electric toothbrush head, in the inner cavity of the lever Equipped with motor (7), rechargeable battery (8) or pole piece and one group of crank and rocker mechanism for connecting replaceable battery, institute It states motor (7) to be electrically connected with rechargeable battery (8) or pole piece, the crank and rocker mechanism is located at the top of motor (7), described Crank and rocker mechanism includes crank (5a), rocking bar (5b) and connecting rod (5c), and one end of the rocking bar (5b) connects with a shaft (2) It connecing, other end connection connecting rod (5c), the connecting rod (5c) is set between crank (5a) and rocking bar (5b) and the two is sequentially connected, The crank (5a) and motor (7) are sequentially connected, and motor (7) driving crank (5a) rotation may make and aforementioned rocking bar Shaft (2) reciprocating rotation of (5b) connection, drives another by pitch wheel (4) when shaft (2) reciprocating rotation Shaft (2) back and forth rotates backward.

10. double end is back and forth to rolling electric toothbrush, it is characterised in that: back and forth right including lever and double end described in claim 1 Electric toothbrush head is rolled, the double end is back and forth removably connected to lever to rolling electric toothbrush head, in the lever inner cavity Equipped with a pair of of pitch wheel (4), motor (7), rechargeable battery (8) or pole piece for connecting replaceable battery with And one group of crank and rocker mechanism, the motor (7) are electrically connected with rechargeable battery (8) or pole piece, the crank and rocker mechanism Positioned at the top of motor (7), the crank and rocker mechanism includes crank (5a), rocking bar (5b) and connecting rod (5c), the rocking bar The one end of (5b) is sequentially connected with one of gear (4), the other end is connect connecting rod (5c), and the connecting rod (5c) is set to crank It is sequentially connected between (5a) and rocking bar (5b) and by the two, the crank (5a) and motor (7) are sequentially connected, and the double end is reciprocal Two shafts (2) of rolling electric toothbrush head are connect with a gear (4) respectively, motor (7) driving crank (5a) turns It is dynamic, it may make the pitch wheel (4) to rotate, and then two shafts (2) is driven back and forth to rotate backward.