CN211049674U

CN211049674U - Multifunctional electric toothbrush

Info

Publication number: CN211049674U
Application number: CN201921230769.7U
Authority: CN
Inventors: 李贵平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-07-21
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a multifunctional electric toothbrush, which comprises a handle shell, a connecting rod with a lower end fixedly connected with the upper part of the handle shell and extending upwards, and a brush head positioned on the upper part of the connecting rod. The brush head of the multifunctional electric toothbrush can rotate, so that the function of conveniently cleaning teeth of the electric toothbrush can be realized. Meanwhile, toothpaste can be filled in the handle shell, the toothpaste is automatically provided for the brush head in an electric mode, a user can use the toothbrush conveniently, and the operation difficulty is low.

Description

Multifunctional electric toothbrush

Technical Field

The invention relates to the technical field of articles for daily use, in particular to a multifunctional electric toothbrush.

Background

Electric toothbrushes have been widely accepted and used today. However, most of the structures are complex, and only the function of cleaning teeth can be realized, so that the structure is single.

Disclosure of Invention

The invention aims to provide a multifunctional electric toothbrush which has the characteristics of higher integration level and more convenient use.

The technical scheme adopted by the invention is as follows: a multifunctional electric toothbrush, which comprises a handle shell, a connecting rod with the lower end fixedly connected with the upper part of the handle shell and extending upwards, a brush head positioned on the upper part of the connecting rod,

the handle shell is internally provided with a transmission cavity positioned at the right part and a toothpaste cavity positioned at the left part;

the transmission cavity is internally provided with a power rod extending in the up-down direction, the outer part of the power rod is sleeved with a tubular lead screw in a clearance fit manner, the lead screw is connected with a nut in a threaded manner, the nut is not rotatable compared with the transmission cavity, the upper part of the power rod is provided with an electric clutch, meanwhile, the lower part of the transmission cavity is provided with a motor and a battery, the lower end of the power rod is in power connection with the motor, the motor and the electric clutch are both connected to the battery through a control circuit, and the control circuit is provided with a brush head switch and a clutch switch;

a squeezing plate capable of moving up and down is arranged in the toothpaste cavity, the toothpaste cavity is provided with a toothpaste inlet, and the toothpaste inlet is provided with a cover; a transmission channel positioned at the right part and a paste inlet channel positioned at the left part are arranged in the connecting rod, and a transmission rod is arranged in the transmission channel;

a protective cover is detachably fixed at the upper end of the connecting rod, a brush head cavity with a right opening is arranged at the right part of the protective cover, a closed paste inlet cavity is arranged at the left part of the protective cover, and the paste inlet cavity is communicated with the bottom of the left side of the brush head cavity;

and the number of the first and second groups,

the power rod is in power connection with the transmission rod and the screw rod through the electric clutch;

the extrusion plate is linked with the nut;

the brush head is rotatably clamped in the brush head cavity and is in power connection with the transmission rod;

the toothpaste inlet cavity is communicated with the toothpaste cavity through the toothpaste inlet channel.

The electric clutch is as follows: the transmission cavity is internally provided with a support, the upper part of the power rod is sleeved with a sliding tube, the sliding tube can slide up and down but can not rotate compared with the power rod, meanwhile, a reset pressure spring is arranged between the support and the sliding tube, a magnet is fixed on the sliding tube, a coil is arranged on the support and is electrically connected to the battery through the control circuit, the upper end of the sliding tube is matched with the lower end of the transmission rod, and the lower end of the sliding tube is matched with the upper end of the lead screw.

The lower end face of the sliding pipe is provided with driving teeth, and the upper end face of the screw rod is provided with driven teeth matched with the driving teeth.

The lower end of the power rod is connected with the motor through a speed reducing mechanism.

The control circuit is also provided with a speed regulation change-over switch.

And the side walls of the upper part and the lower part of the transmission cavity are respectively fixed with a limit switch, the limit switches are matched with the nuts, and the limit switches are correspondingly provided with indicator lamps.

The left part of the extrusion plate is provided with a roller, and the right part of the extrusion plate is connected with the nut through a spring.

The transmission cavity and the toothpaste cavity are mutually independent, and meanwhile, the extrusion plate is magnetically connected with the nut.

The toothpaste inlet cavity is communicated with the brush head cavity through a one-way valve.

The check valve is a rubber tube with two ends respectively communicated with the paste inlet cavity and the brush head cavity, one end of the rubber tube, which is positioned in the brush head cavity, is sealed so as to form a sealing surface, and a notch is arranged on the sealing surface.

Compared with the prior art, the invention has the advantages that: the integration level is higher, and it is comparatively convenient to use. The brush head of the multifunctional electric toothbrush can rotate, so that the function of conveniently cleaning teeth of the electric toothbrush can be realized. Meanwhile, toothpaste can be filled in the handle shell, the toothpaste is automatically provided for the brush head in an electric mode, a user can use the toothbrush conveniently, and the operation difficulty is low.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a front sectional view of a multi-functional electric toothbrush according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a front view of the check valve of FIG. 2;

FIG. 4 is a right side view of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 1;

fig. 6 is a schematic block diagram of the circuit control of the present invention.

In the figure:

10. the toothpaste dispenser comprises a handle shell 11, a transmission cavity 12, a toothpaste cavity 121, a toothpaste inlet 122, a cover 13 and a plug pin cavity;

20. the connecting rod 21, the transmission channel 211, the transmission rod 22 and the paste inlet channel;

30. brush head, 31, rotary handle, 32, brush hair;

41. the electric toothbrush comprises a power rod 42, a screw rod 421, a driven tooth 43, a nut 44, an electric clutch 441, a bracket 4411, a coil 442, a sliding tube 4421, a magnet 4422, a driving tooth 443, a reset pressure spring 45, a speed reducing mechanism 46, a motor 47, a battery 48, a control circuit 481, a brush head switch 482, a clutch switch 483 and a speed regulation change-over switch;

50. a squeezing plate 51, a roller 52 and a spring;

60. the protective cover 61, the brush head cavity 62, the paste inlet cavity 63, the one-way valve 631, the sealing surface 6311 and the notch;

70. a limit switch 71 and an indicator light;

80. and sliding the bolt.

Detailed Description

Examples, see fig. 1-6: the multifunctional electric toothbrush comprises a handle shell 10, a connecting rod 20 with the lower end fixedly connected to the upper part of the handle shell 10 and extending upwards, and a brush head 30 positioned on the upper part of the connecting rod 20. As in the prior art, the brush head 30 generally has a rotary handle 31 and bristles 32 rooted on the circumferential side of the rotary handle 31. That is, the brush head 30 can clean the teeth of the user after being rotated.

Further speaking:

the handle housing 10 has a drive chamber 11 in the right and a paste chamber 12 in the left inside.

A power rod 41 extending in the vertical direction is provided in the transmission chamber 11. For example, a bracket 441, which will be described later, is provided at each of upper and lower sides of the interior of the transmission chamber 11, and upper and lower portions of the power rod 41 are inserted into the bracket 441, so that the power rod 41 can rotate. The power rod 41 is externally fitted with a tubular lead screw 42. By tubular screw 42 is meant a tube provided with external screw thread on the outside. A nut 43 is screwed onto the spindle 42, the nut 43 being non-rotatable in relation to the transmission chamber 11. There are many common ways to realize the non-rotation of the nut 43 compared to the transmission cavity 11, and the description thereof is omitted. That is, the lead screw 42 and the nut 43 form a lead screw-nut mechanism. An electric clutch 44 is provided on the upper portion of the power rod 41. Meanwhile, the lower portion of the transmission chamber 11 is provided with a motor 46 and a battery 47. The lower end of the power rod 41 is in power connection with the motor 46. And, the motor 46 and the electric clutch 44 are connected to the battery 47 through a control line 48, and the control line 48 is provided with a brush head switch 481 and a clutch switch 482. Obviously, the control circuit 48 may be in a conventional manner, and the brushhead switch 481 and the clutch switch 482 may be components in the control circuit 48. The core component of the control circuit 48 may be a commercially available micro-motor control module, and the connection of the brushhead switch 481 and the clutch switch 482 to the micro-motor control module is as described herein, without additional modifications. In another more direct manner, the motor 46 is electrically connected to the battery 47 through the brushhead switch 481; the electrically-operated clutch 44 is electrically connected to the battery 47 through the clutch switch 482.

A squeezing plate 50 is provided in the toothpaste chamber 12 to be movable up and down. The toothpaste chamber 12 is provided with a toothpaste inlet 121, and the toothpaste inlet 121 is provided with a cover 122. That is, the toothpaste chamber 12 can be pre-loaded with a quantity of toothpaste. The connecting rod 20 is provided with a transmission passage 21 at the right part and a paste inlet passage 22 at the left part. A transmission rod 211 is provided in the transmission passage 21.

A protector 60 is detachably fixed to the upper end of the connecting rod 20. For example, the protector 60 is caught at the upper end of the connection rod 20. The right part of the shield 60 is provided with a brush head cavity 61 which is opened rightwards, and the left part of the shield 60 is provided with a closed paste inlet cavity 62. The paste inlet chamber 62 is communicated with the bottom of the left side of the brush head chamber 61 through a plurality of holes.

More specifically:

the power rod 41 is in power connection with the transmission rod 211 and the screw rod 42 through the electric clutch 44. That is, after the electric clutch 44 is operated, the power lever 41 and the transmission lever 211 can be connected by power, so that the power lever 41 can drive the transmission lever 211 to rotate; alternatively, after the electric clutch 44 is operated, the power rod 41 and the lead screw 42 can be connected by power, so that the power rod 41 can drive the lead screw 42 to rotate.

The pressing plate 50 is interlocked with the nut 43. That is, the nut 43 moves up and down, and then drives the pressing plate 50 to move up and down.

The brush head 30 is rotatably captured within the brush head chamber 61 and the brush head 30 is in powered communication with the drive link 211. That is, the drive link 211 can rotate the brush head 30.

The paste inlet chamber 62 and the paste chamber 12 communicate through the paste inlet passage 22.

Optimizing:

the electric clutch 44 is: a support 441 is disposed in the transmission chamber 11, and a sliding tube 442 is sleeved on the upper portion of the power rod 41, wherein the sliding tube 442 is capable of sliding up and down but is not rotatable relative to the power rod 41. For example, the inner cavity of the sliding tube 442 and the upper portion of the power rod 41 are non-circular in cross-section and are complementary to each other. Meanwhile, a return compression spring 443 is disposed between the bracket 441 and the sliding tube 442, a magnet 4421 is fixed on the sliding tube 442, a coil 4411 is disposed on the bracket 441, and the coil 4411 is electrically connected to the battery 47 through the control circuit 48. Obviously, the coil 4411 and the magnet 4421 are fitted to each other. And, the upper end of the sliding tube 442 is fitted with the lower end of the driving lever 211, and the lower end of the sliding tube 442 is fitted with the upper end of the screw rod 42. That is, after the sliding tube 442 moves upward, the upper end of the sliding tube 442 and the lower end of the transmission rod 211 are tightly abutted together to realize the power connection therebetween; after the sliding tube 442 moves downward, the lower end of the sliding tube 442 and the upper end of the screw rod 42 are tightly abutted together to realize the power connection therebetween. The coil 4411 may also be electrically connected to the battery 47 directly through the clutch switch 482.

The sliding tube 442 has a driving tooth 4422 on its lower end surface, and the screw rod 42 has a driven tooth 421 matching with the driving tooth 4422 on its upper end surface. That is, after the sliding tube 442 moves downward, the driving teeth 4422 at the lower end of the sliding tube 442 are engaged with the driven teeth 421 at the upper end of the lead screw 42, so that the power connection between the sliding tube 442 and the lead screw 42 is better realized.

And (4) continuing optimization:

the lower end of the power lever 41 is connected to the motor 46 through a speed reducing mechanism 45. the speed reducing mechanism 45 may be formed of a plurality of gear sets, for example, a planetary gear set speed reducer.

The control circuit 48 is also provided with a speed change-over switch 483. That is, the speed change-over switch 483 allows the motor 46 to have different rotation speeds, and allows the motor 46 to be driven in forward and reverse directions.

A limit switch 70 is fixed on the upper and lower side walls of the transmission cavity 11, the limit switch 70 is matched with the nut 43, and the limit switch 70 is provided with an indicator lamp 71 correspondingly. That is, when the nut 43 is moved up and down to the proper position, the corresponding limit switch 70 is activated, and the corresponding indicator light 71 is illuminated to indicate that the nut 43 has reached the limit of movement, which indirectly indicates that the toothpaste is used up or that the toothpaste is filled.

The left part of the extrusion plate 50 is provided with a roller 51, and the right part is connected with the nut 43 through a spring 52. At this time, the toothpaste chamber 12 and the transmission chamber 11 are connected by a vertical strip-shaped opening, and a sealing strip is arranged in the strip-shaped opening to prevent toothpaste from entering the transmission chamber 11 easily. In this case, it is also directly realized that the nut 43 is movable up and down but not rotatable. Alternatively, the drive chamber 11 and the paste chamber 12 are independent of each other and do not communicate. At this time, the pressing plate 50 and the nut 43 are magnetically coupled. For example, an iron block is provided on the pressing plate 50, and a strong magnet is provided on the nut 43, so that the pressing plate 50 can be driven to move up and down as the nut 43 moves up and down. In this case, the pressing plate 50 may be provided at its side with a plurality of rollers.

The paste inlet chamber 62 is communicated with the brush head chamber 61 through a one-way valve 63. That is, the toothpaste can only enter the brush head chamber 61 from the toothpaste inlet chamber 62 and can not flow backwards. In this embodiment, the check valve 63 is a rubber tube having two ends respectively communicating the paste inlet cavity 62 and the brush head cavity 61, the rubber tube 63 is located at one end of the brush head cavity 61 and is closed so as to have a closed surface 631, a cut 6311 is provided on the closed surface 631, and the cut 6311 can be formed into a cross-shaped opening or a straight-shaped opening by cutting. Meanwhile, a rubber sleeve (not shown) may be sleeved on the outer circumferential side of the rubber tube 63, so that the notch 6311 is in a closed state in a normal state. Such a check valve 63 is relatively simple and easy to manufacture, and has a good use effect.

In addition:

the battery 47 is a rechargeable battery and is connected to a sliding plug 80. For better waterproofing, the lower portion of the handle case 10 may be provided with a separate latch cavity 13, and the sliding latch 80 may be located in the latch cavity 13. At this time, the waterproof effect is better only by the connecting wire entering the transmission cavity 11 from the plug cavity 13.

The working principle and the operation method of the invention are as follows:

1. and (5) brushing teeth. In a normal state, the clutch switch 482 is not closed, and the slide tube 442 is located relatively upward and is in power connection with the transmission rod 211 under the action of the return compression spring 443. When the user presses the brush head switch 481, the motor 46 is powered on to work, the power rod 41 rotates, and the sliding tube 442 drives the brush head 30 to rotate, so that the teeth can be cleaned. At this time, the shield 60 can protect the oral cavity wall. Wherein the motor 46 may be speed regulated and the motor 46 may be reversed via a speed regulation switch 483.

2. Toothpaste is squeezed out. Toothpaste should be added to the head 30 prior to brushing. The clutch switch 482 is pressed to close. At this time, the coil 4411 is energized to move the sliding tube 442 downward by attracting the magnet 4421, which is manifested by the sliding tube 442 not being connected to the driving lever 211 but being in powered connection with the lead screw 42. The user presses the brush head switch 481 to rotate the sliding tube 442 and drive the lead screw 42 to rotate, and under the action of the lead screw nut mechanism, the nut 43 moves upwards to drive the extrusion plate 50 to move upwards, so that toothpaste pre-filled in the toothpaste cavity 12 sequentially passes through the toothpaste inlet channel 22, the toothpaste inlet cavity 62 and the one-way valve 63 to reach the brush head cavity 61, and finally a certain amount of toothpaste is adhered to the brush head 30.

3. Adding toothpaste. When the toothpaste in the toothpaste cavity 12 is less, the nut 43 moves up to the limit to trigger the limit switch 70 located above, the indicator lamp 71 matched with the limit switch 70 is turned on, the motor 46 is rotated reversely by the user through the speed-adjusting switch 483, the screw rod 42 is rotated reversely, the nut 43 moves downwards, and the user can open the toothpaste inlet 121 to fill toothpaste in the toothpaste cavity 12. In the process, once the nut 43 moves downwards to the limit, the lower limit switch 70 is triggered, the indicator lamp 71 matched with the limit switch 70 is lighted, and the user rotates the motor 46 reversely again through the speed-adjusting switch 483 to prepare for next toothpaste squeezing.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. Multifunctional electric toothbrush, including handle shell (10), lower extreme link firmly connecting rod (20) on this handle shell (10) upper portion and upwards extending, brush head (30) that are located this connecting rod (20) upper portion, its characterized in that:

the handle shell (10) is internally provided with a transmission cavity (11) positioned at the right part and a toothpaste cavity (12) positioned at the left part;

a power rod (41) extending in the up-down direction is arranged in the transmission cavity (11), a tubular lead screw (42) is sleeved on the outside of the power rod (41) in a clearance fit manner, a nut (43) is screwed on the lead screw (42), the nut (43) is not rotatable compared with the transmission cavity (11), an electric clutch (44) is arranged at the upper part of the power rod (41), meanwhile, a motor (46) and a battery (47) are arranged at the lower part of the transmission cavity (11), the lower end of the power rod (41) is in power connection with the motor (46), the motor (46) and the electric clutch (44) are both connected to the battery (47) through a control circuit (48), and the control circuit (48) is provided with a brush head switch (481) and a clutch switch (482);

a squeezing plate (50) capable of moving up and down is arranged in the toothpaste cavity (12), a toothpaste inlet (121) is formed in the toothpaste cavity (12), and a cover (122) is arranged at the toothpaste inlet (121);

a transmission channel (21) positioned at the right part and a paste inlet channel (22) positioned at the left part are arranged in the connecting rod (20), and a transmission rod (211) is arranged in the transmission channel (21);

a protective cover (60) is detachably fixed at the upper end of the connecting rod (20), a brush head cavity (61) with a rightward opening is formed in the right part of the protective cover (60), a closed paste inlet cavity (62) is formed in the left part of the protective cover (60), and the paste inlet cavity (62) is communicated with the bottom of the left side of the brush head cavity (61);

and the number of the first and second groups,

the power rod (41) is in power connection with the transmission rod (211) and the screw rod (42) through the electric clutch (44);

the extrusion plate (50) is linked with the nut (43);

the brush head (30) is rotatably clamped in the brush head cavity (61), and the brush head (30) is in power connection with the transmission rod (211);

the toothpaste inlet cavity (62) is communicated with the toothpaste cavity (12) through the toothpaste inlet channel (22).

2. The multi-functional electric toothbrush of claim 1, wherein: the electric clutch (44) is: the transmission cavity (11) is internally provided with a bracket (441), the upper part of the power rod (41) is sleeved with a sliding tube (442), the sliding tube (442) can slide up and down but can not rotate compared with the power rod (41), meanwhile, a reset pressure spring (443) is arranged between the bracket (441) and the sliding tube (442), a magnet (4421) is fixed on the sliding tube (442), the bracket (441) is provided with a coil (4411), the coil (4411) is electrically connected to the battery (47) through the control circuit (48), the upper end of the sliding tube (442) is matched with the lower end of the transmission rod (211), and the lower end of the sliding tube (442) is matched with the upper end of the screw rod (42).

3. The multi-functional electric toothbrush of claim 2, wherein: the lower end face of the sliding tube (442) is provided with a driving tooth (4422), and the upper end face of the screw rod (42) is provided with a driven tooth (421) matched with the driving tooth (4422).

4. The multi-functional electric toothbrush of claim 1, wherein: the lower end of the power rod (41) is connected with the motor (46) through a speed reducing mechanism (45).

5. The multi-functional electric toothbrush of claim 1, wherein: the control circuit (48) is also provided with a speed regulation change-over switch (483).

6. The multi-functional electric toothbrush according to claim 5, wherein: and the side walls of the upper part and the lower part of the transmission cavity (11) are respectively fixed with a limit switch (70), the limit switches (70) are matched with the nuts (43), and the limit switches (70) are correspondingly provided with indicator lamps (71).

7. The multi-functional electric toothbrush of claim 1, wherein: the left part of the extrusion plate (50) is provided with a roller (51), and the right part is connected with the nut (43) through a spring (52).

8. The multi-functional electric toothbrush of claim 1, wherein: the transmission cavity (11) and the toothpaste cavity (12) are mutually independent, and the extrusion plate (50) is magnetically connected with the nut (43).

9. The multi-functional electric toothbrush of claim 1, wherein: the paste inlet cavity (62) is communicated with the brush head cavity (61) through a one-way valve (63).

10. The multi-functional electric toothbrush of claim 9, wherein: the check valve (63) is a rubber tube with two ends respectively communicated with the paste inlet cavity (62) and the brush head cavity (61), one end of the rubber tube, which is located in the brush head cavity (61), is sealed so as to form a sealing surface (631), and a notch (6311) is formed in the sealing surface (631).