Improved orbital electric toothbrush

Abstract

The application discloses an improved track type electric toothbrush, which comprises a shell, a control panel, a driving device, a vibrating device, a transmission mechanism and two brush head groups; the shell comprises a handle and a support frame, the support frame is arranged at the front end of the handle and extends forward, the front side of the support frame is in a U shape which is matched with the shape of a person's oral cavity, and the front side edge of the support frame is provided with a track; the two brush head groups are driven to move back and forth along the track by the driving device and the transmission mechanism, the transverse brushing of the teeth is realized, the vibration is generated by cooperating with the vibrating device, the vibration is transmitted to the two brush head groups through the support frame, the two brush head groups move up and down and move back and forth to realize the vertical brushing of the teeth, the vertical brushing is combined with the transverse brushing, the three-dimensional and all-round brushing of the teeth is realized, the tooth brushing is more clean and fast, and the user does not need to repeatedly move back and forth to operate the product, so that time and labor are saved.

Description

Technical Field

[0001] This invention relates to the field of toothbrush technology, and in particular to an improved track-type electric toothbrush. Background Technology

[0002] Electric toothbrushes are a relatively new product that has emerged in recent years, and they are poised to become an important part of the mass-market health products. Surveys show that electric toothbrushes are more scientifically effective than regular toothbrushes. They can more thoroughly remove plaque and reduce gingivitis and bleeding gums. The rapid rotation of the brush head creates high-frequency vibrations, instantly breaking down toothpaste into fine foam that deeply cleans between teeth. Simultaneously, the vibrations of the bristles promote blood circulation in the mouth, providing an unexpected massage effect on the gum tissue.

[0003] In existing technology, electric toothbrush heads are all fixed structures, typically fixed to the front of the handle. A vibration device inside the handle generates vibrations that are transmitted to the brush head, causing it to vibrate and clean the teeth. Because this structure only allows the brush head to vibrate and not move, it only cleans the teeth in one direction. To clean all teeth, the user needs to move the entire toothbrush back and forth, which is very time-consuming and laborious. Therefore, it is necessary to improve current electric toothbrushes. Summary of the Invention

[0004] In view of this, the present invention addresses the deficiencies of the prior art, and its main objective is to provide an improved track-type electric toothbrush that can effectively solve the problem that the brush head of existing electric toothbrushes can only vibrate and cannot move, resulting in time-consuming and laborious brushing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An improved track-type electric toothbrush includes a housing, a control board, a drive unit, a vibration device, a transmission mechanism, and two brush head assemblies. The housing includes a handle and a support frame. The support frame is located at the front end of the handle and extends forward. The front side of the support frame is U-shaped, conforming to the shape of a human mouth. A track, also U-shaped, is provided along the front edge of the support frame. The control board and drive unit are both located inside the handle, and the drive unit is electrically connected to the control board. The vibration device is located inside the handle. It abuts against the support frame, and the vibration device is electrically connected to the control board; the transmission mechanism includes two pistons and two swing rods. The two pistons are symmetrically arranged left and right and can be moved back and forth inside the handle. Both pistons are connected to the drive device and are driven by the drive device to move back and forth. The two swing rods are symmetrically arranged left and right and can be opened and closed and are respectively hinged to the front end of the two pistons; the two brush head groups are symmetrically arranged left and right on the track and move back and forth along the track. The two brush head groups are respectively hinged to the front end of the two swing rods and are driven by the swing rods to move back and forth.

[0007] As a preferred embodiment, the handle is formed by splicing an upper shell and a lower shell, and the support frame extends forward integrally from the front end of the lower shell, which has a simple and stable structure and is easy to assemble.

[0008] As a preferred embodiment, the track is a U-shaped support structure, which is fixed to the surface of the support frame. The track has a U-shaped groove, and the bottom of the brush head assembly has a guide part that is embedded in the track groove and moves back and forth along the track groove, so that the brush head assembly moves back and forth stably and smoothly.

[0009] As a preferred embodiment, the brush head assembly has a connecting hole, and the front end of the swing rod has a through hole. A fastener passes through the through hole and is detachably fastened to the connecting hole, allowing the brush head assembly to be replaced as needed, thus providing convenience for use.

[0010] As a preferred embodiment, the brush head assembly includes multiple brush heads arranged sequentially along the length of the track. Adjacent brush heads are connected by connectors, and each brush head has a guide protruding from its bottom, making the movement of the brush head assembly more stable and reliable.

[0011] As a preferred embodiment, the drive device includes a support, two gear discs, two connecting rods, a motor, and a bevel gear. The support is fixed inside the handle. The two gear discs are opposite to each other and rotatably mounted on the left and right sides of the support. The rear ends of the two connecting rods are hinged to the edges of the two gear discs, and the front ends of the two connecting rods are hinged to the rear ends of the two pistons. The motor is fixed inside the handle and electrically connected to the control board. The bevel gear is fixed to the output shaft of the motor and meshes with both gear discs simultaneously to drive the two gear discs to rotate at the same time and provide better driving force.

[0012] As a preferred embodiment, the handle contains a battery that is electrically connected to the control board, and the control board has a charging interface that is exposed at the rear end of the handle to charge the battery.

[0013] As a preferred embodiment, the control panel is connected to a control switch, which is exposed on the outer side of the middle part of the handle, so as to operate the drive device and the vibration device.

[0014] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0015] By utilizing a drive unit and transmission mechanism to move two brush head sets back and forth along a track, the teeth are brushed laterally. In conjunction with a vibration device, vibration is generated and transmitted to the two brush head sets through the support frame, causing the two brush head sets to move up and down to brush the teeth vertically. The combination of vertical and horizontal brushing achieves a three-dimensional, all-around cleaning of the teeth, making brushing cleaner and faster. At the same time, users do not need to repeatedly move the product back and forth, saving time and effort.

[0016] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the assembly from another angle of a preferred embodiment of the present invention;

[0019] Figure 3 This is an exploded view of a preferred embodiment of the present invention;

[0020] Figure 4 This is an exploded view from another angle of a preferred embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10. Outer shell 11. Handle

[0024] 111. Upper shell 112. Lower shell

[0025] 12. Support frame 13. Track

[0026] 131. Track groove 101. Mounting cavity

[0027] 20. Control board 21. Charging interface

[0028] 22. Control switch; 30. Drive device

[0029] 31. Support; 32. Gear disc

[0030] 33. Connecting rod; 34. Motor

[0031] 35. Bevel gear; 40. Vibration device

[0032] 41. Vibration rod 42. Vibration motor

[0033] 50. Transmission mechanism 51. Piston component

[0034] 52. Swing rod 501. Through hole

[0035] 60. Brush head set 61. Brush head

[0036] 62. Connector 63. Fastener

[0037] 601. Guide section; 602. Connecting hole

[0038] 70. Battery. Detailed Implementation

[0039] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a housing 10, a control board 20, a drive device 30, a vibration device 40, a transmission mechanism 50, and two brush head assemblies 60.

[0040] The outer casing 10 includes a handle 11 and a support frame 12. The support frame 12 is located at the front end of the handle 11 and extends forward. The front side of the support frame 12 is U-shaped, conforming to the shape of a human mouth. A track 13 is provided on the front edge of the support frame 12. The track 13 is U-shaped and extends along the front edge of the support frame 12. In this embodiment, the handle 11 has a mounting cavity 101. The handle 11 is formed by splicing an upper shell 111 and a lower shell 112. The support frame 12 extends forward integrally from the front end of the lower shell 112. The structure is simple and stable, and easy to assemble. The track 13 is a U-shaped support structure. The track 13 is fitted and fixed to the surface of the support frame 12. The track 13 has a track groove 131, which is U-shaped.

[0041] Both the control board 20 and the drive device 30 are located inside the handle 11, and the drive device 30 is electrically connected to the control board 20. In this embodiment, both the control board 20 and the drive device 30 are located in the mounting cavity 101. Specifically, the drive device 30 includes a support 31, two gear discs 32, two connecting rods 33, a motor 34, and a bevel gear 35. The support 31 is fixed inside the handle 11. The two gear discs 32 are opposite to each other and rotatably located on the left and right sides of the support 31, respectively. The rear ends of the two connecting rods 33 are respectively hinged to the edges of the two gear discs 32. The motor 34 is fixed inside the handle 11 and electrically connected to the control board 20. The bevel gear 35 is fixed on the output shaft of the motor 34 and meshes with the two gear discs 32 simultaneously to drive the two gear discs 32 to rotate at the same time and provide better driving force.

[0042] The vibration device 40 is disposed inside the handle 11 and abuts against the support frame 12. The vibration device 40 is electrically connected to the control board 20. In this embodiment, the vibration device 40 includes a vibration rod 41 and a vibration motor 42 that drives the vibration rod 41 to vibrate. The vibration motor 42 is sealed and fixed inside the handle 11. The vibration rod 41 extends forward out of the handle 11 and abuts against the support frame 12 and the track 13 to provide vibration force to the support frame 12 and the track 13.

[0043] The transmission mechanism 50 includes two pistons 51 and two swing rods 52. The two pistons 51 are symmetrically arranged and movable in the handle 11. Both pistons 51 are connected to the drive device 30 and are driven by the drive device 30 to move back and forth. The two swing rods 52 are symmetrically arranged and hinged to the front ends of the two pistons 51 respectively. The front ends of the two swing rods 52 extend forward out of the handle 11. In this embodiment, the front ends of the two connecting rods 33 are respectively hinged to the rear ends of the two pistons 51. The front ends of the two swing rods 52 are provided with through holes 501.

[0044] The two brush head assemblies 60 are symmetrically arranged on the track 13 and move back and forth along the track 13. The two brush head assemblies 60 are respectively hinged to the front ends of the two swing rods 52 and are driven to move back and forth by the swing rods 52. In this embodiment, the bottom of the brush head assembly 60 has a guide part 601, which is embedded in the track groove 131 and moves back and forth along the track groove 131, so that the back and forth movement of the brush head assembly 60 is stable and smooth. Specifically, the brush head assembly 60 includes a plurality of brush heads 61, which are arranged sequentially along the length direction of the track 13. Adjacent brush heads 61 are connected by a connector 62. The bottom of each brush head 61 is provided with a guide part 601, which makes the movement of the brush head assembly 60 more stable and reliable. In addition, the brush head assembly 60 has a connecting hole 602. A fastener 63 passes through the through hole 501 and is detachably fastened to the connecting hole 602, so that the brush head assembly 60 can be replaced as needed, which brings convenience to use.

[0045] Additionally, a battery 70 is installed inside the handle 11, which is electrically connected to the control board 20. The battery 70 provides power to the drive device 30 and the vibration device 40 through the control board 20. The control board 20 has a charging interface 21, which is exposed on the rear end face of the handle 11 for charging the battery 70. Furthermore, the control board 20 is connected to a control switch 22, which is exposed on the outer side of the middle part of the handle 11 for operating the drive device 30 and the vibration device 40.

[0046] The working principle of this embodiment is described in detail below:

[0047] In use, apply toothpaste to the brush head assembly 60 and insert the support frame 12 into the mouth so that the brush head assembly 60 is in contact with the teeth. When the product is turned on, the battery 70 supplies power to the drive device 30 and the vibration device 40, causing the drive device 30 and the vibration device 40 to start working. The motor 34 drives the bevel gear 35 to rotate, causing the two gear discs 32 to rotate and drive the two piston parts 51 to move back and forth through the connecting rod 33. The back and forth movement of the two piston parts 51 drives the two swing rods 52 to open or close alternately. When the two swing rods 52 are open, the two swing rods 52 drive the two brush head assemblies 60 to move along the track. When the two swing rods 52 are closed together, they move forward and drive the two brush head assemblies 60 backward along the track 13. This causes the two brush head assemblies 60 to move back and forth to brush the teeth horizontally. At the same time, the vibration device 40 works and generates vibration. The vibration is transmitted to the two brush head assemblies 60 through the support frame 12, causing the two brush head assemblies 60 to move up and down to brush the teeth vertically. The combination of vertical and horizontal brushing achieves three-dimensional and all-round brushing of the teeth, making brushing cleaner and faster. At the same time, the user does not need to move the product back and forth repeatedly, saving time and effort.

[0048] The key design feature of this invention is that by using a drive device and transmission mechanism to move two brush head assemblies back and forth along a track, it achieves lateral brushing of the teeth. In conjunction with a vibration device, vibration is generated and transmitted to the two brush head assemblies through a support frame, causing the two brush head assemblies to move up and down to perform vertical brushing of the teeth. The combination of vertical and lateral brushing achieves three-dimensional, all-around brushing of the teeth, making brushing cleaner and faster. At the same time, the user does not need to repeatedly move the product back and forth, saving time and effort.

[0049] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An improved track-type electric toothbrush, characterized in that: The device includes a housing, a control panel, a drive unit, a vibration device, a transmission mechanism, and two brush head assemblies. The housing includes a handle and a support frame. The support frame is located at the front end of the handle and extends forward. The front side of the support frame is U-shaped, conforming to the shape of a human mouth. A U-shaped track is provided along the front edge of the support frame. The control panel and drive unit are both located inside the handle, and the drive unit is electrically connected to the control panel. The vibration device is located inside the handle and abuts against the support frame, and is electrically connected to the control panel. The transmission mechanism includes two pistons and two swing rods. The two pistons are symmetrically arranged and movable back-and-forth inside the handle. Both pistons are connected to the drive unit and moved back and forth by it. The two swing rods are symmetrically arranged and hinged to the front ends of the two pistons, respectively, and can be opened and closed. The two brush head assemblies are symmetrically arranged on the track and move back and forth along it. Each brush head assembly is hinged to the front end of one of the two swing rods and moved back and forth by them. The track is a U-shaped support structure, fixed to the surface of the support frame. The track has a U-shaped groove, and the bottom of the brush head assembly has a guide portion that moves back and forth within the groove. The brush head assembly has a connecting hole, and the front end of the swing rod has a through hole. A fastener passes through the through hole and detachably engages with the connecting hole. The brush head assembly includes multiple brush heads arranged sequentially along the length of the track, with adjacent brush heads connected by connectors. Each brush head has a guide protruding from its bottom; the drive device includes a support, two gear discs, two connecting rods, a motor, and a bevel gear; the support is fixed inside the handle; the two gear discs are opposite to each other and rotatably mounted on the left and right sides of the support; the rear ends of the two connecting rods are hinged to the edges of the two gear discs, and the front ends of the two connecting rods are hinged to the rear ends of the two pistons; the motor is fixed inside the handle and electrically connected to the control board; the bevel gear is fixed to the output shaft of the motor and meshes with the two gear discs simultaneously.

2. The improved track-type electric toothbrush according to claim 1, characterized in that: The handle is formed by splicing an upper shell and a lower shell, and the support frame extends forward integrally from the front end of the lower shell.

3. The improved track-type electric toothbrush according to claim 1, characterized in that: The handle contains a battery that is electrically connected to the control board, which has a charging interface that is exposed at the rear end of the handle.

4. The improved track-type electric toothbrush according to claim 1, characterized in that: The control panel is connected to a control switch, which is exposed on the outer side of the middle part of the handle.

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