Motor tail end elastic structure for increasing swing amplitude of brush head

Abstract

The motor tail end elastic structure capable of increasing the swing amplitude of the brush head comprises a handle and the brush head, an insertion hole penetrating through the handle is formed in the center of the upper surface of the handle, an insertion rod is arranged on the lower surface of the brush head, and the insertion rod is detachably connected with the handle through the insertion hole; a base plate is arranged at the position, under the inserting hole, in the handle, a plurality of electric push rods are vertically arranged on the upper surface of the base plate, a high-low moving plate is installed on the upper surfaces of the electric push rods, the high-low moving plate is located under the inserting hole, and the high-low moving plate is parallel to the base plate. According to the utility model, the motor works and can generate upward thrust on the inclined moving plate at intervals through the first cam and the second cam, so that the inclined moving plate can move up and down and also can move obliquely, namely, the brush head mounted on the inclined moving plate can also swing obliquely while moving up and down, and therefore, when teeth are cleaned, the tooth cleaning efficiency is greatly improved. A larger area of teeth can be covered, and the cleaning effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to an elastic structure at the tail end of a motor for increasing the swing amplitude of a toothbrush head. Background Art

[0002] An electric toothbrush makes the toothbrush head vibrate through the rapid rotation or vibration of a motor core, decomposes toothpaste into fine foam, and deeply cleans the tooth gaps; when using an electric toothbrush, the user does not need to vibrate their own arm, bringing a better user experience for brushing teeth; existing electric toothbrushes all move in the front-back direction and friction on the tooth surface to clean the teeth. However, for the toothbrush head of an electric toothbrush, the single-direction front-back movement has a relatively limited coverage area on the tooth surface and there is a large room for improvement. Content of the Utility Model

[0003] In order to solve the deficiencies existing in the prior art, the utility model provides an elastic structure at the tail end of a motor for increasing the swing amplitude of a toothbrush head.

[0004] The utility model provides an elastic structure at the tail end of a motor for increasing the swing amplitude of a toothbrush head, including a handle and a toothbrush head. A jack penetrating the handle is arranged in the center of the upper surface of the handle. A plug rod is arranged on the lower surface of the toothbrush head. The plug rod is detachably connected with the handle through the jack.

[0005] A bottom plate is arranged directly below the jack in the handle. A plurality of electric push rods are vertically arranged on the upper surface of the bottom plate. A high-low movement plate is installed on the upper surface of the electric push rods. The high-low movement plate is directly below the jack and is parallel to the bottom plate.

[0006] It further includes an inclined movement plate and a connecting rod. The inclined movement plate is located above the high-low movement plate and is parallel to the high-low movement plate. The connecting rod is vertically installed between the high-low movement plate and the inclined movement plate.

[0007] A plurality of springs are also vertically arranged between the high-low movement plate and the inclined movement plate. The tops of the plurality of springs are fixed on the lower surface of the inclined movement plate, and the bottoms of the plurality of springs are fixed on the upper surface of the high-low movement plate.

[0008] Further, a first installation groove is arranged in the center of the upper surface of the high-low movement plate, and a second installation groove is arranged in the center of the lower surface of the inclined movement plate. A first universal ball is arranged at the upper end of the connecting rod, and a second universal ball is arranged at the lower end of the connecting rod. The first universal ball is movably installed in the second installation groove, and the second universal ball is movably installed in the first installation groove.

[0009] Further, two motor bases are symmetrically arranged at the edge positions of the upper surface of the high-low moving plate. Motors are arranged on the motor bases. The driving shafts of the two motors are both directed at the lower surface area of the inclined moving plate, and a first cam and a second cam are respectively arranged on the driving shafts of the two motors.

[0010] Further, the surfaces of the first cam and the second cam are both in contact with the lower surface of the inclined moving plate, and the protruding positions of the first cam and the second cam are in opposite directions.

[0011] Further, there are four springs, which are symmetrically distributed between the high-low moving plate and the inclined moving plate, and the two motors are arranged at the symmetric positions in the middle of two adjacent springs.

[0012] Further, a plug rod mounting seat is arranged at the center of the upper surface of the inclined moving plate, and the bottom end of the plug rod is detachably connected or threadedly connected to the plug rod mounting seat.

[0013] Further, the inner diameter of the jack is larger than the cross-section of the plug rod.

[0014] The beneficial effects of the present utility model are as follows: The inclined moving plate is connected to the upper surface of the high-low moving plate through a connecting rod and a spring. When the electric push rod pushes the high-low moving plate, the inclined moving plate can move up and down together with the high-low moving plate, so that the brush head moves up and down to clean teeth; when the motor works, through the first cam and the second cam, an upward thrust can be intermittently generated on the inclined moving plate, so that the inclined moving plate can tilt while moving up and down, that is, the brush head mounted on the inclined moving plate can tilt and swing while moving up and down. In this way, when cleaning teeth, a larger area of the teeth can be covered, and the cleaning effect is better. Description of the Drawings

[0015] Figure 1 It is a side view of the handle of the present utility model;

[0016] Figure 2 It is a three-dimensional view of the handle of the present utility model;

[0017] Figure 3 It is a three-dimensional view of the bottom plate of the present utility model;

[0018] Figure 4 It is a three-dimensional view of the high-low moving plate of the present utility model.

[0019] In the figure: 1. Handle; 11. Socket; 12. Support block; 2. Brush head; 21. Insert rod; 3. Bottom plate; 31. Electric push rod; 4. High and low movement plate; 41. First mounting seat; 42. Spring; 43. Motor seat; 44. Motor; 45. First cam; 46. Second cam; 5. Tilt movement plate; 51. Insert rod mounting seat; 52. Second mounting seat; 6. Link; 61. First universal ball; 62. Second universal ball. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] As Figures 1-4 shown, a motor tail-end elastic structure for increasing the swing amplitude of the brush head includes a handle 1 and a brush head 2. A socket 11 penetrating the handle 1 is provided in the center of the upper surface of the handle 1. An insert rod 21 is provided on the lower surface of the brush head 2. The insert rod 21 is detachably connected to the handle 1 through the socket 11. After the brush head 2 is worn, it is convenient to install a new brush head 2;

[0023] A bottom plate 3 is provided directly below the socket 11 inside the handle 1. A support block 12 is provided on the inner wall of the handle 1. The bottom plate 3 is installed on the support block 12. A plurality of electric push rods 31 are vertically provided on the upper surface of the bottom plate 3. The upper surface of the electric push rod 31 is provided with a high and low movement plate 4. The high and low movement plate 4 is located directly below the socket 11. The high and low movement plate 4 is parallel to the bottom plate 3. The electric push rod 31 drives the high and low movement plate 4 to move up and down;

[0024] It further includes a tilt movement plate 5 and a link 6. The tilt movement plate 5 is located above the high and low movement plate 4 and is parallel to the high and low movement plate 4. The link 6 is vertically installed between the high and low movement plate 4 and the tilt movement plate 5. The link 6 connects the high and low movement plate 4 and the tilt movement plate 5 into one body. The tilt movement plate 5 can move up and down together with the high and low movement plate 4;

[0025] A plurality of springs 42 are also vertically arranged between the high-low moving plate 4 and the inclined moving plate 5. The tops of the plurality of springs 42 are fixed to the lower surface of the inclined moving plate 5, and the bottoms of the plurality of springs 42 are fixed to the upper surface of the high-low moving plate 4. The springs 42 can generate a pulling force on the inclined moving plate 5.

[0026] A first mounting groove 41 is arranged at the center of the upper surface of the high-low moving plate 4, a second mounting groove 52 is arranged at the center of the lower surface of the inclined moving plate 5, a first universal ball 61 is arranged at the upper end of the connecting rod 6, a second universal ball 62 is arranged at the lower end of the connecting rod 6. The first universal ball 61 is movably installed in the second mounting groove 52, and the second universal ball 62 is movably installed in the first mounting groove 41;

[0027] That is, the inclined moving plate 5 can incline and move above the high-low moving plate 4.

[0028] Two motor seats 43 are symmetrically arranged at the edge positions of the upper surface of the high-low moving plate 4. Motors 44 are arranged on the motor seats 43. The drive shafts of the two motors 44 are both directed towards the lower surface area of the inclined moving plate 5. First cams 45 and second cams 46 are respectively arranged on the drive shafts of the two motors 44.

[0029] The surfaces of the first cam 45 and the second cam 46 are both in contact with the lower surface of the inclined moving plate 5. The protruding positions of the first cam 45 and the second cam 46 are in opposite directions. The first cam 45 and the second cam 46 can both generate an upward thrust on the lower surface of the inclined moving plate 5, so that the inclined moving plate 5 swings.

[0030] There are four springs 42, which are symmetrically distributed between the high-low moving plate 4 and the inclined moving plate 5. The two motors 44 are arranged at the symmetric positions in the middle of two adjacent springs 42.

[0031] A plug rod mounting seat 51 is arranged at the center of the upper surface of the inclined moving plate 5. The bottom end of the plug rod 21 is detachably connected or threadedly connected to the plug rod mounting seat 51, which is convenient for replacing a new brush head 2.

[0032] The inner diameter of the jack 11 is larger than the cross-section of the plug rod 21. When the plug rod 21 moves, there will be no movement interference with the jack 11.

[0033] To sum up: The inclined moving plate 5 is connected to the upper surface of the high-low moving plate 4 through the connecting rod 6 and the spring 42. When the electric push rod 31 pushes the high-low moving plate 4, the inclined moving plate 5 can move up and down together with the high-low moving plate 4, so that the brush head 2 moves up and down to clean the teeth;

[0034] When the motor 44 operates, through the first cam 45 and the second cam 46, an upward thrust can be intermittently generated on the inclined moving plate 5, so that the inclined moving plate 5 can move obliquely while moving up and down. That is, the brush head 2 mounted on the inclined moving plate 5 can swing obliquely while moving up and down. In this way, when cleaning teeth, a larger area of the teeth can be covered, and the cleaning effect is better.

[0035] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A motor tail end elastic structure for increasing the swing amplitude of a brush head, characterized in that: It comprises a handle (1) and a brush head (2); a plug hole (11) penetrating the handle (1) is arranged at the center of the upper surface of the handle (1); an insertion rod (21) is arranged on the lower surface of the brush head (2); the insertion rod (21) is detachably connected to the handle (1) via the plug hole (11); A bottom plate (3) is arranged in the handle (1) just below the insertion hole (11), a plurality of electric push rods (31) are arranged vertically on the upper surface of the bottom plate (3), and a high and low movement plate (4) is installed on the upper surface of the electric push rods (31), the high and low movement plate (4) is located just below the insertion hole (11), and the high and low movement plate (4) is parallel to the bottom plate (3); It also includes an inclined movement plate (5) and a connecting rod (6), wherein the inclined movement plate (5) is located above the high and low movement plate (4) and is parallel to the high and low movement plate (4), and the connecting rod (6) is vertically installed between the high and low movement plate (4) and the inclined movement plate (5); A plurality of springs (42) are also vertically arranged between the high and low motion plate (4) and the tilting motion plate (5), the top ends of the plurality of springs (42) are fixed on the lower surface of the tilting motion plate (5), and the bottom ends of the plurality of springs (42) are fixed on the upper surface of the high and low motion plate (4).

2. The motor tail end elastic structure for increasing the swing amplitude of the brush head according to claim 1, characterized in that: A first mounting groove (41) is provided at the center of the upper surface of the elevation movement plate (4), a second mounting groove (52) is provided at the center of the lower surface of the tilt movement plate (5), a first universal ball (61) is provided at the upper end of the connecting rod (6), and a second universal ball (62) is provided at the lower end of the connecting rod (6), the first universal ball (61) is movably mounted in the second mounting groove (52), and the second universal ball (62) is movably mounted in the first mounting groove (41).

3. The motor tail end elastic structure for increasing the swing amplitude of the brush head according to claim 2, characterized in that: Two motor seats (43) are symmetrically arranged at the edge of the upper surface of the high and low motion plate (4), and a motor (44) is arranged on the motor seat (43). The driving shafts of the two motors (44) are both facing the lower surface area of ​​the tilting motion plate (5), and the driving shafts of the two motors (44) are respectively provided with a first cam (45) and a second cam (46).

4. The motor tail end elastic structure for increasing the swing amplitude of the brush head according to claim 3, characterized in that: The surfaces of the first cam (45) and the second cam (46) are both in contact with the lower surface of the tilting motion plate (5), and the protruding positions of the first cam (45) and the second cam (46) are in opposite directions.

5. The motor tail end elastic structure for increasing the swing amplitude of the brush head according to claim 3, characterized in that: There are four springs (42) symmetrically distributed between the height movement plate (4) and the tilt movement plate (5), and two motors (44) are arranged at symmetrical positions in the middle of two adjacent springs (42).

6. The motor tail end elastic structure for increasing the swing amplitude of the brush head according to claim 1, characterized in that: A rod mounting seat (51) is provided in the centre of the upper surface of the tilting motion plate (5), and the bottom end of the rod (21) is connected to the rod mounting seat (51) by plugging or threading.

7. The motor tail end elastic structure for increasing the swing amplitude of the brush head according to claim 1, characterized in that: The inner diameter of the insertion hole (11) is larger than the cross section of the insertion rod (21).

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