A motor assembly for an electric toothbrush

Abstract

The utility model discloses a motor assembly for electric toothbrush, and one end of operation fixed cover inside is equipped with processing motor, and the biconvex fixed block is connected with the output shaft of processing motor, and the side end of biconvex fixed block is equipped with the multi -shaft operation frame of sleeve joint, and the top equal interval of multi -shaft operation frame is equipped with a plurality of removal support ball, and one end of operation fixed cover inside is equipped with universal joint, and the bottom of universal joint is equipped with contact swing board, and the top equal interval of contact swing board is welded with a plurality of processing synchronous post, and the top of processing synchronous post is welded with reciprocating operation board, and the equal interval of operation fixed cover inside is equipped with a plurality of down -press spring rod, the utility model utilizes rotation and inclination swing transmission, increases the swing amplitude of toothbrush joint, reduces the stress intensity of handle simultaneously, can effectively promote its vibration amplitude and vibration range when electric toothbrush is used, promotes the effect of toothbrushing, reduces the strength required for gripping simultaneously, promotes the comfort of use.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, specifically to a motor assembly for an electric toothbrush. Background Technology

[0002] An electric toothbrush is a toothbrush that uses an electric motor to make the brush head vibrate or rotate at high frequency to clean teeth. Currently, electric toothbrushes mainly use vibrating motors and DC micro motors. The vibrating motor drives an eccentric vibrating rotor through a brushless DC motor to generate a strong centrifugal force, which enables the brush head connected to the motor to produce high-frequency, micro-amplitude reciprocating vibration.

[0003] However, when using a vibrating motor, the connection point is affected by the motor speed and rotational contact, resulting in a smaller overall amplitude during vibration. Furthermore, the vibration is quite strong at the hand grip of the electric toothbrush during vibration, affecting the actual brushing effect and user experience. Utility Model Content

[0004] This utility model provides a motor assembly for an electric toothbrush, which can effectively solve the problem mentioned in the background art that when a vibration motor is used, the connection position is affected by the motor speed and rotational contact, resulting in a small overall amplitude during vibration, and the vibration at the hand grip of the electric toothbrush is relatively strong during vibration, which affects the actual brushing effect and actual user experience.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor assembly for an electric toothbrush, comprising an operating fixing sleeve, wherein an operating component is provided on the side end of the operating fixing sleeve; The operating components include a processing motor; A processing motor is installed on one end of the inner side of the operating fixed sleeve, and the output shaft of the processing motor is engaged with a double protruding fixing block. The side end of the double-convex fixing block is sleeved with a multi-axis operating frame, and a number of movable support balls are installed at equal intervals on the top of the multi-axis operating frame. A universal joint is installed at one end of the inner side of the operating fixed sleeve, and a contact swing plate is installed at the bottom end of the universal joint; The top of the contact swing plate is welded with several processing synchronization columns at equal intervals, and the top of the processing synchronization columns is welded with a reciprocating operation plate. The top of the reciprocating operation panel is fitted with a load-bearing fixing frame; Several downward pressure spring rods are equidistantly installed on the inner side of the operating fixed sleeve, and a downward pressure impact block is installed at the bottom end of the downward pressure spring rod.

[0006] According to the above technical solution, the multi-axis operating frame is rotatably installed inside the operating fixed sleeve, and the side end of the movable support ball is in contact with the bottom end of the contact swing plate.

[0007] According to the above technical solution, the longitudinal section of the contact swing plate is trapezoidal, and the bottom end of the pressing impact block is attached to the top end of the reciprocating operation plate.

[0008] According to the above technical solution, the bearing fixing frame is placed inside the operating fixing sleeve; The input terminal of the processing motor is electrically connected to the output terminal of an external power supply.

[0009] According to the above technical solution, a combination component is provided on the side end of the operating fixing sleeve; The assembly includes a snap-fit ​​connecting post; The bottom end of the operating fixing sleeve is welded with several locking connecting posts at equal intervals, and the bottom end of the locking connecting posts is provided with a locking fixing port. The bottom end of the operating fixing sleeve is equipped with a power connection assembly head, and a guide limiting sleeve is installed at the bottom end of the operating fixing sleeve corresponding to the position of the power connection assembly head. A vibration spring is welded to the inner side of the bearing fixing frame, and a toothbrush connector is welded to the top of the vibration spring; The side end of the bearing fixing frame is equipped with an elastic limiting ring, and the side end of the operating fixing sleeve is equidistantly clamped with several circulating mesh plates.

[0010] According to the above technical solution, the power connection assembly head is placed inside the guide limiting sleeve, and the toothbrush connector is placed inside the bearing fixing frame.

[0011] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use. 1. Equipped with an operating component, the motor drives the double-convex fixed block and multi-axis operating frame to rotate. The multi-axis operating frame and moving support ball push the contact swing plate to rotate and reciprocate along the universal joint. The contact swing plate drives the processing synchronization column and reciprocating operating plate to push the bearing fixed frame to swing. In conjunction with the downward pressure spring rod, downward pressure impact block and vibration spring, the toothbrush head swings. By using rotation and tilting swing transmission, the swing amplitude of the toothbrush head is increased, while the force intensity at the handle is reduced. This effectively increases the vibration amplitude and vibration range when using the electric toothbrush, improving the brushing effect, while reducing the force required to grip and improving the comfort of use.

[0012] 2. It is equipped with a combination component, which allows for quick assembly of the operating fixing sleeve and external connecting parts through the snap-fit ​​connecting column and snap-fit ​​fixing port. With the help of the guide and restriction sleeve, the electrical assembly head is guided for power connection, realizing the rapid splicing and assembly of the equipment. This simplifies the operation steps during equipment production and installation, and improves the speed of assembly and production. The circulating mesh plate cools the processing motor, reduces its internal temperature, and improves the service life and operating time of the equipment. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the operating components of this utility model; Figure 3 This is a schematic diagram of the installation structure of the universal joint of this utility model; Figure 4 This is a schematic diagram of the combined components of this utility model; Numbered in the diagram: 1. Operating fixing sleeve; 2. Operating components; 201. Processing motor; 202. Double-convex fixing block; 203. Multi-axis operating frame; 204. Moving support ball; 205. Universal joint; 206. Contact swing plate; 207. Processing synchronization column; 208. Reciprocating operating plate; 209. Bearing fixing frame; 210. Downward spring rod; 211. Downward impact block; 3. Assembly components; 301. Snap-fit ​​connecting post; 302. Snap-fit ​​fixing port; 303. Power connection assembly head; 304. Guide limiting sleeve; 305. Vibration spring; 306. Toothbrush connector; 307. Elastic limiting ring; 308. Circulating mesh plate. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Example: Figure 1-4 As shown, this utility model provides a technical solution: a motor assembly for an electric toothbrush, including an operation fixing sleeve 1, and an operation component 2 is provided on the side end of the operation fixing sleeve 1. The operating component 2 includes a processing motor 201, a double-convex fixing block 202, a multi-axis operating frame 203, a movable support ball 204, a universal joint 205, a contact swing plate 206, a processing synchronization column 207, a reciprocating operating plate 208, a bearing fixing frame 209, a downward pressure spring rod 210, and a downward pressure impact block 211. A processing motor 201 is installed on one end of the inner side of the operating fixed sleeve 1, and the output shaft of the processing motor 201 is engaged with a double protruding fixing block 202. The side end of the double-convex fixing block 202 is sleeved with a multi-axis operating frame 203. The multi-axis operating frame 203 is rotatably installed inside the operating fixing sleeve 1 to achieve rotational support and positioning restriction. Several movable support balls 204 are equidistantly installed on the top of the multi-axis operating frame 203. A universal joint 205 is installed on one end of the inner side of the operating fixed sleeve 1. A contact swing plate 206 is installed on the bottom end of the universal joint 205. The side end of the movable support ball 204 is in contact with the bottom end of the contact swing plate 206. The longitudinal section of the contact swing plate 206 is trapezoidal, which realizes rotation and support positioning. Several processing synchronization columns 207 are welded at equal intervals to the top of the contact swing plate 206, and a reciprocating operation plate 208 is welded to the top of the processing synchronization column 207. The top of the reciprocating operation plate 208 is snapped with a bearing fixing frame 209, which is placed inside the operation fixing sleeve 1 to ensure stable vibration processing; Several downward pressure spring rods 210 are installed at equal intervals on the inner side of the operating fixed sleeve 1. A downward pressure impact block 211 is installed at the bottom of the downward pressure spring rod 210. The bottom of the downward pressure impact block 211 is in contact with the top of the reciprocating operating plate 208 to ensure the stable operation of the spring impact vibration. For stable operation of the equipment, the input terminal of the processing motor 201 is electrically connected to the output terminal of the external power supply.

[0017] A combination component 3 is provided on the side end of the operating fixing sleeve 1; The assembly 3 includes a snap-fit ​​connecting post 301, a snap-fit ​​fixing port 302, a power connection assembly head 303, a guide limiting sleeve 304, a vibration spring 305, a toothbrush connector 306, an elastic limiting ring 307, and a circulating mesh plate 308. The bottom end of the operating fixing sleeve 1 is welded with several locking connecting posts 301 at equal intervals, and the bottom end of the locking connecting post 301 is provided with a locking fixing port 302. A power connection assembly head 303 is installed at the bottom of the operating fixed sleeve 1. A guide restriction sleeve 304 is installed at the bottom of the operating fixed sleeve 1 corresponding to the position of the power connection assembly head 303. The power connection assembly head 303 is placed inside the guide restriction sleeve 304 to achieve guided power connection processing. A vibration spring 305 is welded to the inside of the support frame 209. A toothbrush connector 306 is welded to the top of the vibration spring 305. The toothbrush connector 306 is placed inside the support frame 209 to ensure stable vibration treatment. An elastic limiting ring 307 is installed on the side end of the bearing fixing frame 209, and several circulating mesh plates 308 are equidistantly snapped onto the side end of the operating fixing sleeve 1.

[0018] The working principle and usage process of this utility model are as follows: When the electric toothbrush is in use, the processing motor 201 drives the double convex fixing block 202 and the multi-axis operating frame 203 to rotate. The multi-axis operating frame 203 drives the movable support ball 204 to rotate and change position along the operating fixing sleeve 1. The movable support ball 204 pushes the contact swing plate 206 to rotate and reciprocate along the universal joint 205. At this time, the contact swing plate 206 drives the processing synchronous column 207 and the reciprocating operating plate 208 to rotate and move. This pushes the bearing fixing frame 209 to rotate and move. With the cooperation of the downward pressure spring rod 210 and the downward pressure impact block 211, the reciprocating impact processing is increased, thereby increasing the vibration amplitude of the bearing fixing frame 209. At this time, with the cooperation of the vibration spring 305, the toothbrush connector 306 vibrates along the bearing fixing frame 209. With the cooperation of the elastic limiting ring 307, the toothbrush head vibrates and brushes. By using the rotation switching of the processing motor 201 and the reciprocating elastic vibration processing, the elastic vibration amplitude is increased and the vibration intensity is improved, thereby improving the brushing effect of the toothbrush. The operating fixing sleeve 1 is quickly assembled and snapped together by the snap-fit ​​connecting post 301 and the snap-fit ​​fixing port 302. The guide limiting sleeve 304 guides the connection to the power connection head 303. The power connection head 303 is then connected to the external power supply to achieve stable power supply operation and quick assembly connection. This facilitates the replacement of different toothbrush connectors 306, enabling quick equipment replacement and assembly. The circulating mesh plate 308 provides cooling contact to the processing motor 201, improving the stability of the processing motor 201 operation.

[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A motor assembly for an electric toothbrush, comprising an operating fixing sleeve (1), characterized in that: An operating component (2) is provided on the side end of the operating fixing sleeve (1); The operating component (2) includes a processing motor (201); A processing motor (201) is installed on one end of the inner side of the operating fixed sleeve (1), and the output shaft of the processing motor (201) is engaged with a double protruding fixing block (202). The double-convex fixing block (202) is sleeved with a multi-axis operating frame (203) on its side end, and a number of movable support balls (204) are equidistantly installed on the top of the multi-axis operating frame (203). A universal joint (205) is installed on one end of the inner side of the operating fixed sleeve (1), and a contact swing plate (206) is installed on the bottom end of the universal joint (205). The top of the contact swing plate (206) is welded with a plurality of processing synchronization columns (207) at equal intervals, and the top of the processing synchronization column (207) is welded with a reciprocating operation plate (208). The top of the reciprocating operation plate (208) is fitted with a bearing fixing frame (209); A plurality of pressure spring rods (210) are equidistantly installed on the inner side of the operating fixed sleeve (1), and a pressure impact block (211) is installed at the bottom end of the pressure spring rod (210).

2. The motor assembly for an electric toothbrush according to claim 1, characterized in that, The multi-axis operating frame (203) is rotatably mounted inside the operating fixed sleeve (1), and the side end of the movable support ball (204) is in contact with the bottom end of the contact swing plate (206).

3. The motor assembly for an electric toothbrush according to claim 1, characterized in that, The longitudinal section of the contact swing plate (206) is trapezoidal, and the bottom end of the pressing impact block (211) is attached to the top end of the reciprocating operation plate (208).

4. The motor assembly for an electric toothbrush according to claim 1, characterized in that, The bearing fixing frame (209) is placed inside the operating fixing sleeve (1); The input terminal of the processing motor (201) is electrically connected to the output terminal of an external power supply.

5. The motor assembly for an electric toothbrush according to claim 1, characterized in that, The operating fixing sleeve (1) is provided with a combination component (3) on its side end; The combined component (3) includes a snap-fit ​​connecting post (301); The bottom end of the operating fixing sleeve (1) is welded with a number of locking connecting posts (301) at equal intervals, and the bottom end of the locking connecting post (301) is provided with a locking fixing port (302). The bottom end of the operating fixing sleeve (1) is equipped with a power connection assembly head (303), and a guide limiting sleeve (304) is installed at the bottom end of the operating fixing sleeve (1) corresponding to the position of the power connection assembly head (303). A vibration spring (305) is welded to the inner side of the bearing fixing frame (209), and a toothbrush connector (306) is welded to the top of the vibration spring (305). The side end of the bearing fixing frame (209) is equipped with an elastic limiting ring (307), and the side end of the operating fixing sleeve (1) is equidistantly clamped with a number of circulating mesh plates (308).

6. The motor assembly for an electric toothbrush according to claim 5, characterized in that, The power connector (303) is placed inside the guide limiting sleeve (304), and the toothbrush connector (306) is placed inside the support fixing frame (209).

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