Electric toothbrush convenient to assemble

Abstract

The utility model relates to an electric toothbrush convenient to assemble. The electric toothbrush comprises a brush handle, a brush rod and a brush head, a circuit board, a main bracket, a driving device and a power supply piece are mounted in the brush handle; the driving device comprises an alternating magnet and a moving support, the alternating magnet is fixedly connected with the brush handle and electrically connected with the circuit board, two first elastic pieces integrally bent and formed are arranged on the main support, the moving support and the alternating magnet are oppositely arranged, and the two ends of the moving support are fixedly connected with the two first elastic pieces respectively. A permanent magnet is mounted on one side, close to the alternating magnet, of the moving bracket; the power supply part is electrically connected with the circuit board; the brush rod is arranged at the end of the brush handle and installed on the moving support. The brush head is installed on the brush rod, and brush wires are arranged on the brush head. The electric toothbrush solves the problem that in the prior art, the assembly process of an electric toothbrush used for achieving the Bass tooth brushing method is too complex, and consequently the production efficiency is too low.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to an electric toothbrush which is easy to assemble. Background Art

[0002] The Bass brushing method, also known as the gingival sulcus cleaning method or horizontal vibration method, can effectively remove plaque near the gingival margin and in the gingival sulcus and massage the gums. It is a brushing method recommended by the American Dental Association. The key points are: use a soft-bristled toothbrush, point the toothbrush at a 45° angle to the long axis of the tooth toward the root apex, apply gentle pressure, so that part of the brush wire enters the gingival sulcus, part is located on the gingival margin, and extends into the interproximal space as much as possible, and vibrate horizontally back and forth with gentle pressure, brushing each part 10 times; the toothbrush can be held vertically on the lingual and palatal side of the front teeth, and the top of the brush wire enters the gingival sulcus and interproximal space at an angle of about 45°, and vibrates along the long axis of the tooth. Existing electric toothbrushes mostly use motors to drive the brush head to swing, so as to automatically implement the Bass brushing method, and then deeply clean the teeth.

[0003] Refer to the utility model patent with publication number CN218852880U, which discloses an electric toothbrush that can implement the Bass brushing method, refer to Figure 1 , is a partial schematic diagram of the electric toothbrush, in which a main frame and a first elastic member for connecting a moving bracket are provided. When the two are assembled, a worker needs to insert the first elastic member into the main bracket and weld them to achieve a fixed connection between the two. This operation is too time-consuming, resulting in a long production cycle of the electric toothbrush, which greatly affects the production efficiency.

[0004] Therefore, it is necessary to provide a technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the assembly process of the electric toothbrush used to implement the Bass brushing method in the prior art is too complicated, resulting in too low production efficiency.

[0006] To achieve the above object, the utility model provides an electric toothbrush that is easy to assemble, including a brush handle, a brush rod and a brush head, wherein:

[0007] A circuit board, a main bracket, a driving device and a power supply are installed inside the brush handle; the driving device includes an alternating magnet and a moving bracket, the alternating magnet is fixedly connected to the brush handle and electrically connected to the circuit board, the main bracket is provided with two first elastic sheets that are integrally bent, the moving bracket is arranged opposite to the alternating magnet, and its two ends are respectively fixedly connected to the two first elastic sheets, and a permanent magnet is installed on the side of the moving bracket close to the alternating magnet; the power supply is electrically connected to the circuit board;

[0008] The brush rod is arranged at the end of the brush handle and is mounted on the moving bracket;

[0009] The brush head is mounted on the brush rod, and brush filaments are arranged on the brush head.

[0010] More specifically, the main bracket includes an inserting piece, which is provided with a plurality of clamping holes, and two first elastic sheets are respectively arranged at both ends of the inserting piece; the interior of the brush handle is provided with a connected accommodating cavity and a slot, one side wall of the slot is provided with a limiting rib, and the other side wall is provided with a clamping block corresponding to the clamping hole, and the limiting rib and the clamping block are staggered in front and back distribution; the moving bracket and the alternating magnet are both arranged in the accommodating cavity, the inserting piece is inserted into the slot, and its two sides are respectively in contact with the side walls of the slot and the limiting ribs, and the clamping block is clamped in the corresponding clamping hole, and the two first elastic sheets are both arranged in the accommodating cavity.

[0011] More specifically, the first elastic sheet is spiral-shaped, the outer end of the first elastic sheet is integrally formed with the main bracket, the inner end of the first elastic sheet is provided with a locking hole, a bolt is provided in the locking hole, and the moving bracket is fixedly connected to the bolt.

[0012] More specifically, an integrally bent side panel is provided on the outer end of the first elastic sheet, the side panel intersects with the insert sheet, a positioning block is provided on the cavity wall of the accommodating cavity, a positioning hole is opened on the side panel, and the positioning block is arranged in the positioning hole.

[0013] More specifically, an output rod is fixedly connected to the moving bracket, the output rod passes through the brush handle, a sealing sheet is sleeved on the output rod, the outer edge of the sealing sheet is sealed with the brush handle, and a deformation fold is provided in the middle of the sealing sheet; the brush rod is detachably mounted on the output rod.

[0014] More specifically, the brush handle is provided with a shock absorbing device, which is located on the side of the driving device away from the brush rod, and includes a balancing block and a sub-bracket, the sub-bracket is fixedly connected to the brush handle, and the sub-bracket is provided with two second elastic sheets that are integrally bent, the balancing block is arranged between the two second elastic sheets, and its two ends are respectively connected to the two second elastic sheets.

[0015] More specifically, the brush head is detachably connected to the brush rod.

[0016] More specifically, both sides of the brush head are provided with arc-shaped protrusions protruding outward; the brush rod is provided with a through hole corresponding to the brush head, and the hole wall of the through hole is provided with an arc-shaped groove formed by a depression; the brush head is placed in the through hole, and the arc-shaped protrusion is located in the arc-shaped groove.

[0017] More specifically, the brush rod is provided with a blocking portion extending into the through hole.

[0018] More specifically, a control switch for controlling the start and stop of the driving device is provided on the brush handle.

[0019] The technical effects of the electric toothbrush that is easy to assemble involved in the utility model are:

[0020] The present application folds two first elastic sheets on the main bracket, so that the first elastic sheet and the main bracket are integrally formed. In this way, when assembling the electric toothbrush, the staff only needs to install the main bracket inside the brush handle, and no longer needs to install the first elastic sheet separately. The design of the present application reduces the assembly process of the electric toothbrush, so that the staff does not need to assemble and weld the first elastic sheet, shortens the assembly cycle of each electric toothbrush, and thus greatly improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a partial schematic diagram of an existing electric toothbrush capable of implementing the Bass brushing method;

[0022] Figure 2 This is a schematic structural diagram of an electric toothbrush that is easy to assemble according to the utility model;

[0023] Figure 3 A cross-sectional schematic diagram of an electric toothbrush that is easy to assemble according to the utility model;

[0024] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the interior of a brush handle of an electric toothbrush that is easy to assemble according to the utility model;

[0026] Figure 6 This is a schematic diagram of the coordination between the brush handle and the main bracket of an electric toothbrush that is easy to assemble according to the utility model;

[0027] Figure 7 for Figure 6 Schematic cross-sectional view in the middle BB direction;

[0028] Figure 8 This is a schematic structural diagram of a main bracket in an electric toothbrush that is easy to assemble according to the utility model;

[0029] Fig. 9 The utility model is a schematic structural diagram of a brush head of an electric toothbrush which is easy to assemble.

[0030] Markings in the figure:

[0031] 1. Brush handle; 2. Brush rod; 3. Brush head;

[0032] 11. Circuit board; 12. Main bracket; 121. First elastic sheet; 122. Insert sheet; 123. Clamp hole; 124. Side plate; 13. Driving device; 131. Alternating magnet; 132. Moving bracket; 133. Permanent magnet; 134. Output rod; 14. Power supply; 15. Accommodating cavity; 16. Slot; 161. Clamp block; 162. Limiting rib; 18. Sealing sheet; 19. Shock absorber; 191. Balance block; 192. Sub-bracket; 193. Second elastic sheet; 20. Control switch;

[0033] 21. arc groove; 22. blocking portion;

[0034] 31. Brush wire; 32. Arc-shaped protrusion. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element at the same time; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] In order to more clearly illustrate the technical solution of the utility model, a preferred embodiment is provided below. Figures 1 to 9 , an electric toothbrush that is easy to assemble, comprising a brush handle 1, a brush rod 2 and a brush head 3, wherein:

[0040] A circuit board 11, a main bracket 12, a driving device 13 and a power supply 14 are installed inside the brush handle 1; the driving device 13 includes an alternating magnet 131 and a moving bracket 132, the alternating magnet 131 is fixedly connected to the brush handle 1 and is electrically connected to the circuit board 11, the main bracket 12 is provided with two first elastic sheets 121 that are integrally bent, the moving bracket 132 is arranged opposite to the alternating magnet 131, and its two ends are respectively fixedly connected to the two first elastic sheets 121, and a permanent magnet 133 is installed on the side of the moving bracket 132 close to the alternating magnet 131; the power supply 14 is electrically connected to the circuit board 11;

[0041] The brush rod 2 is disposed at the end of the brush handle 1 and is mounted on the motion bracket 132;

[0042] The brush head 3 is mounted on the brush rod 2 , and brush filaments 31 are provided on the brush head 3 .

[0043] The utility model relates to an electric toothbrush that is easy to assemble. The difference between the electric toothbrush that can realize the Bass brushing method is that the utility model presses and folds two first elastic sheets 121 on the main bracket 12, so that the first elastic sheet 121 and the main bracket 12 are integrally formed. In this way, when assembling the electric toothbrush, the staff only needs to install the main bracket 12 inside the brush handle 1, and no longer needs to separately install the first elastic sheet 121. That is, the design of the utility model reduces the assembly process of the electric toothbrush, so that the staff does not need to assemble and weld the first elastic sheet 121, shortens the assembly cycle of each electric toothbrush, and thus greatly improves the production efficiency.

[0044] In this embodiment, the main bracket 12 includes an inserting piece 122, on which a plurality of locking holes 123 are formed, and two first elastic pieces 121 are respectively arranged at the two ends of the inserting piece 122; the brush handle 1 is provided with a connected accommodating cavity 15 and a slot 16 inside, a limiting rib 162 is provided on one side wall of the slot 16, and a block 161 corresponding to the locking hole 123 is provided on the other side wall, and the limiting rib 162 and the block 161 are staggered in front and back; the moving bracket 132 and the alternating magnet 131 are both arranged in the accommodating cavity 15, the inserting piece 122 is inserted into the slot 16, and its two sides are respectively in contact with the side wall of the slot 16 and the limiting rib 162, and the block 161 is clamped in the corresponding locking hole 123, and the two first elastic pieces 121 are both arranged in the accommodating cavity 15. Preferably, the front side of the block 161 is set as an inclined structure. During actual assembly, the staff only needs to insert the insert 122 along the slot 16. When the end of the insert 122 contacts the block 161, the insert 122 will first bend elastically outward under the influence of the inclined structure of the block 161. When the insert 122 moves to the position corresponding to the card hole 123 and the card block 161, the insert 122 will automatically rebound, so that the card block 161 is placed in the card hole 123, so that the insert 122 is fixedly connected to the brush handle 1. The design of the present application makes the assembly between the main bracket 12 and the brush handle 1 convenient and stable, so that the production efficiency and product quality are improved.

[0045] In this embodiment, the first elastic sheet 121 is spiral-shaped, the outer end of the first elastic sheet 121 is integrally formed with the main bracket 12, the inner end thereof is provided with a lock hole, a bolt is provided in the lock hole, and the moving bracket 132 is fixedly connected with the bolt. The above design makes it possible to maximize the deformability of the first elastic sheet 121 within a limited space, ensuring that after the alternating magnet is activated, the moving bracket 132 can fully move so that the brush head 3 can fully swing.

[0046] In this embodiment, an integrally bent side plate 124 is provided on the outer end of the first elastic sheet 121, the side plate 124 intersects with the inserting sheet 122, a positioning block is provided on the cavity wall of the accommodating cavity 15, a positioning hole is provided on the side plate 124, and the positioning block is arranged in the positioning hole. The above design improves the stability of the outer end of the first elastic sheet 121 and reduces the risk of breaking the first elastic sheet 121.

[0047] In this embodiment, the output rod 134 is fixedly connected to the moving bracket 132, and the output rod 134 passes through the brush handle 1. The output rod 134 is sleeved with a sealing sheet 18, the outer edge of the sealing sheet 18 is sealed with the brush handle 1, and the middle of the sealing sheet 18 is provided with a deformation fold; the brush handle 2 is detachably mounted on the output rod 134. With the above design, the sealing between the output rod 134 and the brush handle 1 is achieved to prevent liquid from penetrating into the inside of the brush handle 1.

[0048] In this embodiment, the brush handle 1 is provided with a shock absorbing device 19, which is located on the side of the driving device 13 away from the brush rod 2, and includes a balancing block 191 and a sub-bracket 192, the sub-bracket 192 is fixedly connected to the brush handle 1, and the sub-bracket 192 is provided with two second elastic sheets 193 formed by bending in one piece, and the balancing block 191 is arranged between the two second elastic sheets 193, and its two ends are respectively connected to the two second elastic sheets 193. Specifically, when the driving device 13 drives the brush rod 2 to slide, the brush handle 1 is affected by the driving device 13 and generates a movement trend in the same direction as the movement direction of the brush rod 2, while the balancing block 191 generates a movement trend in the opposite direction to the movement direction of the brush handle 1 under the action of inertia. Under the action of the second elastic member, the balancing block 191 applies a force on the main bracket 12 in the opposite direction to the movement direction of the brush handle 1, and the force and the force applied to the brush handle 1 by the driving device 13 offset each other, thereby minimizing the vibration of the brush handle 1 to the greatest extent and improving the user's use experience.

[0049] In this embodiment, the brush head 3 is detachably connected to the brush rod 2. It should be understood that after the electric toothbrush has been used for a period of time, more bacteria will remain on the brush filaments 31. At this time, the brush filaments 31 need to be replaced. Traditional electric toothbrushes usually replace the entire brush rod 2 to replace the brush filaments 31, which is a waste of resources. However, the design of the present application allows the brush head 3 to be replaced separately, that is, when the brush filaments 31 need to be replaced, only the brush head 3 needs to be replaced, thereby reducing resource loss.

[0050] In this embodiment, arc-shaped protrusions 32 protruding outward are respectively provided on both sides of the brush head 3; a through hole corresponding to the brush head 3 is opened on the brush rod 2, and an arc-shaped groove 21 is formed by a depression on the hole wall of the through hole; the brush head 3 is placed in the through hole, and the arc-shaped protrusion 32 is located in the arc-shaped groove 21. When the brush head 3 and the brush rod 2 are assembled, the brush head 3 is first pushed upward from the bottom of the through hole to make the arc-shaped protrusion 32 snap into the arc-shaped groove 21, and the fixed connection between the brush head 3 and the brush rod 2 can be completed. Conversely, when the brush head 3 and the brush rod 2 are detached, the brush head 3 is pushed downward to separate the arc-shaped protrusion 32 from the arc-shaped groove 21, and the brush head 3 can be withdrawn outside the through hole.

[0051] In this embodiment, a blocking portion 22 extending into the through hole is provided on the brush rod 2. When the brush head 3 is assembled with the brush rod 2, the blocking portion 22 is in contact with the side of the brush head 3 away from the brush filaments 31. This design can prevent the brush head 3 from moving toward the other side of the through hole when the electric toothbrush is in use, thereby preventing the brush head 3 from separating from the brush rod 2.

[0052] In this embodiment, a control switch 20 for controlling the driving device 13 to start and stop is provided on the brush handle 1.

[0053] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric toothbrush that is easy to assemble, characterized in that: It includes a brush handle, a brush rod and a brush head, wherein: A circuit board, a main bracket, a driving device and a power supply are installed inside the brush handle; the driving device includes an alternating magnet and a moving bracket, the alternating magnet is fixedly connected to the brush handle and electrically connected to the circuit board, the main bracket is provided with two first elastic sheets that are integrally bent, the moving bracket is arranged opposite to the alternating magnet, and its two ends are respectively fixedly connected to the two first elastic sheets, and a permanent magnet is installed on the side of the moving bracket close to the alternating magnet; the power supply is electrically connected to the circuit board; The brush rod is arranged at the end of the brush handle and is mounted on the moving bracket; The brush head is mounted on the brush rod, and brush filaments are arranged on the brush head.

2. An electric toothbrush that is easy to assemble according to claim 1, characterized in that: The main bracket includes an inserting piece, a plurality of clamping holes are formed on the inserting piece, and two first elastic pieces are respectively arranged at both ends of the inserting piece; a connected accommodating cavity and a slot are arranged inside the brush handle, a limiting rib is arranged on one side wall of the slot, and a clamping block corresponding to the clamping hole is arranged on the other side wall, and the limiting rib and the clamping block are staggered in front and back distribution; the moving bracket and the alternating magnet are both arranged in the accommodating cavity, the inserting piece is inserted into the slot, and its two sides are respectively in contact with the side walls of the slot and the limiting ribs, and the clamping block is clamped in the corresponding clamping hole, and two first elastic pieces are both arranged in the accommodating cavity.

3. An electric toothbrush that is easy to assemble according to claim 2, characterized in that: The first elastic sheet is spiral-shaped, and the outer end of the first elastic sheet is integrally formed with the main bracket. The inner end of the first elastic sheet is provided with a locking hole, and a bolt is provided in the locking hole. The moving bracket is fixedly connected to the bolt.

4. An electric toothbrush that is easy to assemble according to claim 3, characterized in that: An integrally bent side plate is provided on the outer end of the first elastic sheet, the side plate intersects with the inserting sheet, a positioning block is provided on the cavity wall of the accommodating cavity, a positioning hole is opened on the side plate, and the positioning block is arranged in the positioning hole.

5. An electric toothbrush that is easy to assemble according to claim 1, characterized in that: An output rod is fixedly connected to the moving bracket, and the output rod passes through the brush handle. A sealing sheet is sleeved on the output rod, and the outer edge of the sealing sheet is sealed with the brush handle, and a deformation fold is arranged in the middle of the sealing sheet; the brush rod is detachably mounted on the output rod.

6. An electric toothbrush that is easy to assemble according to claim 1, characterized in that: The brush handle is provided with a shock absorbing device, which is located on the side of the driving device away from the brush rod, and includes a balancing block and a sub-bracket, the sub-bracket is fixedly connected to the brush handle, and the sub-bracket is provided with two second elastic sheets that are integrally bent, the balancing block is arranged between the two second elastic sheets, and the two ends of the balancing block are respectively connected to the two second elastic sheets.

7. An electric toothbrush that is easy to assemble according to claim 1, characterized in that: The brush head is detachably connected to the brush rod.

8. An electric toothbrush that is easy to assemble according to claim 7, characterized in that: The two sides of the brush head are respectively provided with arc-shaped protrusions protruding outward; the brush rod is provided with a through hole corresponding to the brush head, and the hole wall of the through hole is provided with an arc-shaped groove formed by a depression; the brush head is placed in the through hole, and the arc-shaped protrusion is located in the arc-shaped groove.

9. An electric toothbrush that is easy to assemble according to claim 8, characterized in that: The brush rod is provided with a blocking portion extending into the through hole.

10. An electric toothbrush that is easy to assemble according to claim 1, characterized in that: The brush handle is provided with a control switch for controlling the start and stop of the driving device.

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