Swing type electric toothbrush

Abstract

The invention discloses a swing type electric toothbrush which comprises a toothbrush handle and a brush head, a swing type driving assembly is arranged in the toothbrush handle and comprises a driving mechanism, a streamline sliding block, two transmission rod bearings and two transmission rods, and the driving mechanism is used for driving the driving mechanism to achieve reciprocating motion; the driving mechanism is used for being connected with a streamline sliding block, the streamline sliding block makes contact with the centers of the two transmission rod bearings, the ends, away from the driving mechanism, of the transmission rod bearings are connected with transmission rods, the ends of the transmission rods are connected with a swinging sliding block assembly, and the swinging sliding block assembly is arranged in the brush head. The electromagnet is driven to move in a reciprocating mode, the electromagnet drives the streamline sliding block to touch the transmission rod bearing, and the transmission rod drives the bristles to rotate and swing. The structure can be in full contact with gaps of teeth through a brush hair structure which continuously and repeatedly swings.

Description

Technical Field

[0001] The invention relates to the technical field of electric toothbrushes, in particular to a swing-type electric toothbrush. Background Art

[0002] Traditional electric toothbrushes usually use rotation or vibration to clean teeth, but these methods may have problems such as uneven cleaning effects or greater irritation to the gums. There are mainly two types of electric toothbrushes:

[0003] 1. Rotation

[0004] Rotating toothbrushes use a motor to drive the round brush head to rotate, which produces a friction effect. The disadvantage is that the force is too strong, and the tooth surface is cleaned very well, but the gaps between the teeth cannot be cleaned. In addition, the strong force on the tooth surface can easily cause tooth surface wear.

[0005] 2. Vibration type

[0006] 2-1. A vibration-type toothbrush has a vibration motor inside that allows the brush head to produce high-frequency swings perpendicular to the direction of the brush handle. The disadvantage is that the swing amplitude is very small, generally about 4 mm up and down. In actual use, the bristles are soft and can swing 4 mm, but because of the softness, when the tip of the bristles touches the surface of the teeth, the resistance is formed, and the soft bristles also have a shock-absorbing effect, so in actual use, the swing amplitude is hindered and does not reach 4 mm at all. This makes the force acting on the tooth surface even smaller.

[0007] 2-2. The vibration of more than 10,000 times per minute makes the mixture of toothpaste and water in the mouth produce a large number of tiny bubbles. The pressure generated when the bubbles burst can clean the gaps between teeth. The disadvantage is that it is noisy and uncomfortable.

[0008] Therefore, a new type of electric toothbrush is needed that can improve cleaning effect and reduce gum irritation through a gentler and more efficient rocking motion. Summary of the invention

[0009] In order to solve the above technical problems, the technical solution provided by the present invention is: a swinging electric toothbrush, comprising a toothbrush handle and a brush head, a swinging drive assembly is arranged inside the toothbrush handle, the swinging drive assembly comprises a driving mechanism, a streamlined slider, two groups of transmission rod bearings and two groups of transmission rods, the driving mechanism is used to drive the driving mechanism to realize reciprocating motion, the driving mechanism is used to connect the streamlined slider, the streamlined slider touches the center of the two groups of transmission rod bearings, the transmission rod bearing is connected to the transmission rod at the end away from the driving mechanism, the end of the transmission rod is connected to the swinging slider assembly, the swinging slider assembly is arranged inside the brush head, and bristles are installed on the top surface thereof, by driving the electromagnet to reciprocate, the electromagnet drives the streamlined slider to touch the transmission rod bearing, so that the transmission rod drives the bristles to rotate and swing.

[0010] Furthermore, the rocking slider assembly includes a first rocking slider and a second rocking slider, the inner edges of the first rocking slider and the second rocking slider are meshed, the bottom end of the first rocking slider is rotatably connected to the inside of the brush head via a rotating shaft, and its inner edge is arranged in a rectangular tooth-like structure, and the bottom end of the second rocking slider is rotatably connected to the inside of the brush head via a rotating shaft, and its inner edge is tightly meshed with the inner side of the first rocking slider.

[0011] Furthermore, the inner wall of the toothbrush handle extends upward to form a connecting block, one end of the transmission rod passes through the connecting block and is rotatably connected to the connecting block, and the other end of the transmission rod is rotatably connected to the inside of the brush head.

[0012] Furthermore, the driving mechanism is an electromagnet, the top end of the streamlined slider is a conical structure, and the tip of the conical slider is used to be arranged between two sets of transmission rod bearings.

[0013] Furthermore, the driving mechanism includes a reduction motor and a driving cam, the output shaft of the reduction motor is used to connect with the driving cam, a protrusion is provided on the driving cam, a groove matching with the protrusion is provided at the bottom end of the streamlined slider, and the streamlined slider is arranged in a conical structure.

[0014] The advantages of the invention compared with the prior art are:

[0015] The present invention adopts a toothbrush handle, a brush head and a swing-type drive assembly, wherein the swing-type drive assembly comprises a driving mechanism, a streamlined slider, two sets of transmission rod bearings and two sets of transmission rods. The swing-type drive assembly realizes the reciprocating swinging motion of the bristles, thereby improving the cleaning effect. At the same time, the swinging motion of the bristles is gentler, reducing the stimulation to the gums. The present invention provides a swing-type electric toothbrush, which realizes efficient cleaning and gentle use of the bristles through a unique swing-type drive assembly and a variety of drive mechanism options. The above structure can solve the shortcomings of rotating toothbrushes and vibrating toothbrushes when brushing teeth, and the bristle structure that swings repeatedly can fully contact the gaps between teeth.

[0016] The present invention installs a magnetic charging connector on the rear side of the brush handle and adopts a hanging charging design, which is convenient for taking and placing, and the toothbrush head is placed downward, which is very suitable for draining water and drying.

[0017] The present invention adopts a variety of driving mechanisms to make the electric toothbrush swing, thereby increasing the applicability and flexibility of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the internal structure of a swing-type electric toothbrush of the present invention;

[0019] Figure 2 This is a top view of the interior of a swing-type electric toothbrush of the present invention;

[0020] Figure 3 is the front view of the brush head;

[0021] Figure 4 is a side view of the brush head;

[0022] Figure 5 A top view of the brush head;

[0023] Figure 6 Schematic diagram of the connection between the toothbrush handle and the transmission rod Figure 1 ;

[0024] Figure 7 Schematic diagram of the connection between the toothbrush handle and the transmission rod Figure 2 ;

[0025] Figure 8 is a side view of two sets of transmission rods;

[0026] Fig. 9 It is a structural schematic diagram of a first embodiment of a swing-type electric toothbrush of the present invention;

[0027] Fig.10 It is a structural schematic diagram of a second embodiment of a swing-type electric toothbrush of the present invention;

[0028] Fig.11This is a schematic structural diagram of a third embodiment of a rocking electric toothbrush according to the present invention.

[0029] Among them, 1. toothbrush handle, 2. brush head, 3. driving mechanism, 3-1. electromagnet, 3-2. reduction motor, 3-3. driving cam, 3-4. protrusion, 3-5. groove, 3-6. sonic motor, 3-7. rotating gear, 4. streamlined slider, 5. transmission rod bearing, 6. transmission rod, 7. first swing slider, 8. second swing slider, 9. connecting block, 10. battery, 11. magnetic charging connector, 12. bristles, 12-1. first bristles, 12-2. second bristles, 13. control chip, 14. reset spring, 15. shock-absorbing spring assembly, 16. positioning hole, 17. detachable positioning ring. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] The present invention is described in detail with reference to the accompanying drawings.

[0032] The present invention provides a swing-type electric toothbrush in a specific implementation. The swing-type electric toothbrush comprises a toothbrush handle 1 and a brush head 2. A swing-type driving assembly is arranged inside the toothbrush handle 1. The swing-type driving assembly comprises a driving mechanism 3, a streamlined slider 4, two groups of transmission rod bearings 5 ​​and two groups of transmission rods 6. The driving mechanism is used to drive the driving mechanism 3 to realize reciprocating motion. The driving mechanism 3 is used to connect the streamlined slider 4. The streamlined slider 4 contacts the centers of the two groups of transmission rod bearings 5. The transmission rod bearings 5 ​​are connected to the transmission rod 6 at one end away from the driving mechanism 3. The end of the transmission rod 6 is connected to a swing slider assembly. The swing slider assembly is arranged inside the brush head 2. Bristles 12 are installed on the top surface of the swing slider assembly. By driving the electromagnet to reciprocate, the electromagnet drives the streamlined slider 4 to touch the transmission rod bearing 5, so that the transmission rod 6 drives the bristles to rotate and swing.

[0033] As a further elaboration of the present invention, the rocking slider assembly includes a first rocking slider 7 and a second rocking slider 8, the inner edges of the first rocking slider 7 and the second rocking slider 8 are meshed, the bottom end of the first rocking slider 7 is rotatably connected to the inside of the brush head 2 via a rotating shaft, and the inner edge thereof is arranged in a rectangular tooth-like structure, and the bottom end of the second rocking slider 8 is rotatably connected to the inside of the brush head 2 via a rotating shaft, and the inner edge thereof is tightly meshed with the inner side of the first rocking slider 7. Since the first rocking slider 7 and the second rocking slider 8 both adopt a rotatably connected structure, in the process of the streamlined slider 4 from the two groups of transmission rod bearings 5, the transmission rod bearings 5 ​​drive the transmission rod 6 to rotate and rock, and since the transmission rod 6 is provided with two groups, one group of transmission rods 6 drives the first rocking slider 7 to rotate and rock, and one group of transmission rods 6 drives the second rocking slider 8 to rotate and rock.

[0034] As a further elaboration of the present invention, the inner wall of the toothbrush handle 1 extends upward to form a connecting block 9, one end of the transmission rod 6 passes through the connecting block 9 and is rotatably connected to the connecting block 9, and the other end thereof is rotatably connected to the inside of the brush head 2. The above structure realizes the rotatable connection between the transmission rod 6 and the inside of the toothbrush handle 1, which is convenient for driving the bristles 12 to realize rotation and swing.

[0035] Embodiment 1:

[0036] The driving mechanism 3 is an electromagnet 3 - 1 , and the top end of the streamlined slider 4 is a conical structure, and the tip of the conical slider is used to be set between two sets of transmission rod bearings 5 ​​.

[0037] When this embodiment is used for brushing teeth, reciprocating motion is achieved through the electromagnet 3-1 and the reset spring 14. A streamlined slider 4 is fixed on the iron core of the electromagnet 3-1. The streamlined slider 4 is arranged in a conical structure. The streamlined slider 4 is pushed from the center of the two groups of transmission rod bearings 5 ​​to achieve reciprocating motion. The two groups of transmission rod bearings 5 ​​force the transmission rod 6 to rotate in the vertical direction of the axis, thereby causing the transmission rod to swing left and right by 30 degrees, forming a left and right swinging motion of the bristles on the toothbrush head.

[0038] The bristles 12 include first bristles 12-1 and second bristles 12-2. The first bristles 12-1 are arranged on the first swing slider 7, and the second bristles 12-2 are arranged on the second swing slider 8. The first bristles 12-1 and the second bristles 12-2 are arranged alternately.

[0039] By continuously swinging the bristles 12, the first bristles 12-1 and the second bristles 12-2 can swing back and forth to fully contact the gaps between the teeth, thereby increasing the cleaning power on the teeth. In addition, the electric swing toothbrush of the present invention is small in size and light in weight.

[0040] The invention adopts a design of using both rechargeable batteries and dry batteries, and can be used even when there is a power outage or when there is no power supply.

[0041] Embodiment 2:

[0042] The driving mechanism 3 includes a reduction motor 3-2 and a driving cam 3-3. The output shaft of the reduction motor 3-2 is used to connect with the driving cam 3-3. A protrusion 3-4 is arranged on the driving cam 3-3. The bottom end of the streamlined slider 4 is provided with a groove 3-5 that cooperates with the protrusion 3-4. The streamlined slider 4 is arranged in a conical structure.

[0043] When this embodiment is used for brushing teeth, the power supply is started and the reduction motor 3-2 starts working. The reduction motor 3-2 drives the driving cam 3-3 to rotate. The driving cam 3-3 drives the streamlined slider 4 to achieve reciprocating motion through the protrusion 3-4 and the groove 3-5. The streamlined slider 4 is pushed from the center of the two groups of transmission rod bearings 5 ​​to achieve reciprocating motion. The two groups of transmission rod bearings 5 ​​force the transmission rod 6 to rotate in the vertical direction of the axis, thereby causing the transmission rod to swing left and right by 30 degrees, forming a left and right swinging motion of the bristles on the toothbrush head.

[0044] Embodiment three:

[0045] The driving mechanism 3 includes an acoustic wave motor 3-6 and a rotating gear 3-7. The output shaft of the acoustic wave motor 3-6 is connected to the edge of the rotating gear 3-7. The rotating gear 3-7 is used to drive the streamlined slider 4 to reciprocate.

[0046] When this embodiment is used for brushing teeth, the power supply is started, and the sonic motor 3-6 starts to work, and the sonic motor 3-6 drives the rotating gear 3-7 to start rotating. Since the output shaft of the sonic motor 3-6 is connected to the edge of the rotating gear 3-7, the rotating gear 3-7 acts as an eccentric wheel and drives the streamlined slider 4 to achieve reciprocating motion during the rotation process. The streamlined slider 4 is pushed to achieve reciprocating motion from the center of the two groups of transmission rod bearings 5. The two groups of transmission rod bearings 5 ​​force the transmission rod 6 to rotate in the direction perpendicular to the axis, thereby causing the transmission rod to swing left and right by 30 degrees, forming a left and right swinging motion of the bristles on the toothbrush head.

[0047] As a further elaboration of the present invention, a battery 10 is provided at the inner outer end of the toothbrush handle 1, and a magnetic charging connector 11 is provided on the outer side of the battery 10. The magnetic charging connector can be designed to be suspended for charging. That is, it is convenient to take and put, because it is very suitable for draining water and drying when placed head down. The structure of the battery 10 makes the toothbrush unaffected by the fixed power supply during use. And the toothbrush structure provided in the present invention is compact and light.

[0048] As a further elaboration of the present invention, a control chip 13 is disposed inside the toothbrush handle 1, and a positioning hole 16 cooperating with the transmission rod is disposed inside the brush head 2, and the rotational connection between the transmission rod and the brush head is achieved through the positioning hole 16.

[0049] The brush handle 1 is detachably connected to the transmission rod 6 , and a detachable positioning ring 17 is provided inside the brush handle 1 to facilitate the detachment of the transmission rod from the brush handle 1 .

[0050] As a further elaboration of the present invention, a control chip 13 and a shock absorbing device are arranged inside the toothbrush handle 1, and the shock absorbing device is a shock absorbing spring assembly 15, and the shock absorbing spring assembly is installed on the right side of the driving mechanism, and the shock absorbing spring assembly includes a spring and a shock absorbing component. The above structure can reduce the vibration problem of the electric toothbrush during use.

[0051] As a further elaboration of the present invention, the brush head 2 is a detachable structure, and the user can replace the brush head as needed. The brush head can be replaced regularly to reduce the use cost of the electric toothbrush.

[0052] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A rocking electric toothbrush, comprising a toothbrush handle (1) and a brush head (2), characterized in that: The toothbrush handle (1) is provided with a swing-type driving assembly inside. The swing-type driving assembly comprises a driving mechanism (3), a streamlined slider (4), two groups of transmission rod bearings (5) and two groups of transmission rods (6). The driving mechanism is used to drive the driving mechanism (3) to achieve reciprocating motion. The driving mechanism (3) is used to connect the streamlined slider (4). The streamlined slider (4) contacts the centers of the two groups of transmission rod bearings (5). The transmission rod bearing (5) is connected to the transmission rod (6) at one end away from the driving mechanism (3). The end of the transmission rod (6) is connected with a swing-type sliding block assembly. The swing-type sliding block assembly is arranged inside the brush head (2). The top surface of the swing-type sliding block assembly is provided with bristles (12). By driving the electromagnet to reciprocate, the electromagnet drives the streamlined slider (4) to contact the transmission rod bearing (5), so that the transmission rod (6) drives the bristles to rotate and swing.

2. A swing-type electric toothbrush according to claim 1, characterized in that: The rocking slider assembly comprises a first rocking slider (7) and a second rocking slider (8), the inner edges of the first rocking slider (7) and the second rocking slider (8) being meshed, the bottom end of the first rocking slider (7) being rotatably connected to the inside of the brush head (2) via a rotating shaft, and the inner edge thereof being arranged in a rectangular tooth-like structure, the bottom end of the second rocking slider (8) being rotatably connected to the inside of the brush head (2) via a rotating shaft, and the inner edge thereof being tightly meshed with the inner side of the first rocking slider (7).

3. A swing-type electric toothbrush according to claim 2, characterized in that: The inner wall of the toothbrush handle (1) extends upward to form a connecting block (9), one end of the transmission rod (6) passes through the connecting block (9) and is rotatably connected to the connecting block (9), a return spring (14) is connected to the protruding end of the connecting block (9), and the other end is rotatably connected to the inside of the brush head (2).

4. The oscillating electric toothbrush according to claim 1, characterized in that: The driving mechanism (3) is an electromagnet (3-1), the top end of the streamlined slider (4) is a conical structure, and the tip of the conical slider is used to be arranged between two sets of transmission rod bearings (5).

5. The oscillating electric toothbrush according to claim 1, characterized in that: The driving mechanism (3) comprises a reduction motor (3-2) and a driving cam (3-3); the output shaft of the reduction motor (3-2) is used to connect with the driving cam (3-3); a protrusion (3-4) is arranged on the driving cam (3-3); a groove (3-5) matching with the protrusion (3-4) is arranged at the bottom end of the streamlined slider (4); and the streamlined slider (4) is arranged in a conical structure.

6. The oscillating electric toothbrush according to claim 1, characterized in that: The driving mechanism (3) comprises a sonic wave motor (3-6) and a rotating gear (3-7), wherein the output shaft of the sonic wave motor (3-6) is connected to the edge of the rotating gear (3-7), and the rotating gear (3-7) is used to drive the streamlined slider (4) to reciprocate.

7. The oscillating electric toothbrush according to claim 1, characterized in that: A battery (10) is arranged at the inner outer end of the toothbrush handle (1), and a magnetic charging connector (11) is arranged at the outer side of the battery (10).

8. The oscillating electric toothbrush according to claim 1, characterized in that: The bristles (12) comprise first bristles (12-1) and second bristles (12-2); the first bristles (12-1) are arranged on a first swinging slider (7); the second bristles (12-2) are arranged on a second swinging slider (8); the first bristles (12-1) and the second bristles (12-2) are arranged alternately.

9. The oscillating electric toothbrush according to claim 1, characterized in that: A control chip (13) and a shock absorbing device are arranged inside the toothbrush handle (1); the shock absorbing device is a shock absorbing plate (15); and the shock absorbing plate (15) is installed on the right side of the driving mechanism.

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