Electric toothbrush with shock-absorbing toothbrush head

Abstract

The utility model provides an electric toothbrush with a shock-absorbing toothbrush head, which comprises a machine body, a machine body lower cover is arranged at one end of the machine body, a motor support is arranged in the machine body and the machine body lower cover, a toothbrush inner shaft is arranged at one end of the motor support, a motor support shock-absorbing pad is arranged at one end of the toothbrush inner shaft, and the motor support shock-absorbing pad is arranged at the other end of the motor support. A toothbrush inner shaft waterproof ring is arranged between the motor support anti-vibration pad and the toothbrush inner shaft, and a toothbrush inner shaft waterproof cap is arranged at the other end of the toothbrush inner shaft. The electric toothbrush with the damping toothbrush head is convenient and fast to use, the battery is convenient to replace, and no tool is needed to be carried by a user. Only manual replacement is needed; the machine body lower cover is rotated by hands without any tool for detection, so that the time cost is saved. The electric toothbrush is simple to assemble, and when the electric toothbrush is assembled, only the machine body lower cover needs to be rotated and screwed to be aligned with the machine body.

Description

Technical Field

[0001] The utility model relates to the field of electric toothbrushes, in particular to an electric toothbrush with a shock-absorbing toothbrush head. Background Art

[0002] Most of the electric toothbrushes on the market are charged to replenish the power for continued use. This brings certain limitations to the use scenarios, especially inconvenience caused by long-term use in inconvenient places for charging. This electric toothbrush uses the method of replacing dry batteries to continue use, which can avoid the above inconvenience to a certain extent. Utility Model Content

[0003] The utility model aims to provide an electric toothbrush with a shock-absorbing toothbrush head, which is convenient and quick, and the battery can be easily replaced without any tools. It can be replaced manually; the lower cover of the body can be rotated by hand, and no tool detection is required, saving time and cost. The assembly is simple. When assembling the electric toothbrush, only the lower cover of the body needs to be rotated and screwed until it is aligned with the body.

[0004] To achieve the above-mentioned purpose, the utility model provides an electric toothbrush with a shock-absorbing toothbrush head, comprising a body body, a body lower cover is arranged at one end of the body body, a motor bracket is arranged inside the body body and the body lower cover, a toothbrush inner shaft is arranged at one end of the motor bracket, a motor bracket shock-absorbing pad is arranged at one end of the toothbrush inner shaft, and a toothbrush inner shaft waterproof cap is arranged at the other end of the toothbrush inner shaft.

[0005] Preferably, a bracket fixing block is provided on one side of the motor bracket waterproof ring, and a first groove is provided in the body of the machine, and one end of the inner shaft of the toothbrush is in contact with the first groove.

[0006] Preferably, the bracket fixing block is provided with first ribs, first through holes are provided between the first ribs, and the motor bracket anti-vibration pad is provided with a corresponding structure nested with the bracket fixing block.

[0007] Preferably, a coreless cup motor is arranged in the inner shaft of the toothbrush, and the coreless cup motor is located away from one end of the body;

[0008] The toothbrush inner shaft and the toothbrush inner shaft waterproof cap are both arranged inside the toothbrush head, and a second rib plate is arranged on the inner wall of the toothbrush head between the toothbrush head and the toothbrush inner shaft.

[0009] Preferably, a body PCBA is arranged on the motor bracket, spring buckles are arranged at both ends of the body PCBA, and fixing plates are arranged at both sides of the body PCBA.

[0010] Preferably, an inner cavity is provided on the motor bracket, a dry battery is provided in the inner cavity, a positive pole spring and a negative pole tower spring are provided at both ends of the dry battery respectively, a first extension line is provided on the positive pole spring, a second extension line is provided on the negative pole spring, and the positive pole spring and the negative pole tower spring are respectively connected to the fuselage PCBA.

[0011] One end of the body body connected to the lower cover of the body is provided with a thread, and the lower cover of the body is also provided with a matching thread at a corresponding position, an O-ring is provided between the body body and the lower cover of the body, a toothbrush inner shaft waterproof ring is provided on the toothbrush inner shaft, and the slope provided on the inner side of the body body is connected.

[0012] Preferably, a third rib is provided on the inner side of the fuselage lower cover, and a slope is provided on the third rib at the end connected with the fuselage body, and a fourth rib is provided on the fuselage body, and a slope corresponding to the slope on the third rib is provided on the fourth rib;

[0013] The lower cover of the fuselage is provided with a fifth rib plate, and the fifth rib plate is in contact with the edge of one end of the fuselage body.

[0014] Preferably, buckles are respectively provided on both sides of the motor bracket, and a third groove is provided on the fuselage body, and the third groove is connected to the buckle;

[0015] The motor bracket is provided with a first card slot and a second card slot, and a positive pole spring and a negative pole tower spring are respectively embedded in the first card slot and the second card slot.

[0016] Preferably, an opening is provided on the fuselage body, a button is provided in the opening, and the button is connected to the fuselage PCBA.

[0017] Therefore, the utility model adopts the above-mentioned electric toothbrush with a toothbrush head that can reduce vibration, and the technical effects are as follows:

[0018] (1) The dry battery is suspended and fixed in the corresponding position in the bracket cavity by the negative pole tower spring and conducts the work. The negative pole tower spring is fixed in the bracket, and the bracket is fixed in the body of the machine; the positive pole spring and the negative pole spring are fixed on the bracket and connected to the PCBA by welding to form a semi-open circuit. When the dry battery is installed, a completely closed circuit can be formed.

[0019] (2) When the dry battery of the electric toothbrush runs out of power, just gently compress the positive pole of the dry battery toward the negative pole spring, so that it is separated from the positive pole spring by a certain distance, and then gently tilted outward to disengage from the bracket and remove the dry battery. Manually replace the dry battery and reinstall it before use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is an exploded view of an electric toothbrush with a shock-absorbing toothbrush head according to the utility model;

[0021] Figure 2 It is a schematic diagram of the motor bracket and the inner shaft of the toothbrush;

[0022] Figure 3 It is a partial schematic diagram of the connection between the motor bracket and the inner shaft of the toothbrush;

[0023] Figure 4 This is an expanded schematic diagram of the connection between the motor bracket and the inner shaft of the toothbrush;

[0024] Figure 5 It is a cross-sectional view of the fuselage body;

[0025] Figure 6 This is a schematic diagram of the lower cover of the fuselage.

[0026] Reference numerals

[0027] 1. Body; 101. First groove; 102. Fourth rib; 103. Third groove; 2. Bottom cover; 3. O-ring; 4. Third rib; 5. Toothbrush head; 6. Button; 7. Motor bracket; 701. Buckle; 702. Body PCBA;

[0028] 703, fixing plate; 704, dry cell; 705, positive electrode spring; 706, negative electrode conical spring; 707, first extension line; 708, second extension line; 709, first electrical connection hole; 710, second electrical connection hole;

[0029] 711, first card slot; 712, second card slot; 713, bracket fixing; 714, first rib plate; 715, first through hole; 716, snap button; 717, second through hole;

[0030] 8. Toothbrush inner shaft; 801. Motor bracket shockproof pad; 802. Toothbrush inner shaft waterproof ring; 803. Toothbrush inner shaft waterproof cap; 804. Coreless cup motor; 805. Second rib plate; 806. Second groove. DETAILED DESCRIPTION

[0031] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0032] Unless otherwise defined, technical or scientific terms used in the present invention should have the common meanings understood by persons having ordinary skills in the field to which the present invention belongs.

[0033] Embodiment 1

[0034] like Figure 1As shown, the utility model provides an electric toothbrush with a shock-absorbing toothbrush head, comprising a body body 1, a body lower cover 2 is arranged at one end of the body body 1, the body lower cover 2 is a cylinder with a bottom cover, an O-ring 3 is arranged between the body body 1 and the body lower cover 2, a thread is arranged at one end where the body body 1 is connected to the body lower cover 2, and a matching thread is also arranged at a corresponding position of the body lower cover 2, so that the body body 1 and the body lower cover 2 are connected together.

[0035] like Figure 6 As shown, a third rib 4 is provided on the inner side of the lower fuselage cover 2, and a slope is provided on the third rib 4 at the connection end with the fuselage body 1. A fourth rib 102 is provided on the fuselage body 1, and a slope corresponding to the slope on the third rib 4 is provided on the fourth rib 102. Such a structural design enables precise installation when installing by threaded rotation to avoid over-assembly.

[0036] like Figure 2 As shown, the motor bracket 7 is provided in the fuselage body 1 and the fuselage lower cover 2, buckles 701 are provided on both sides of the motor bracket 7, and the fuselage body 1 is provided with a third groove 103, and the third groove 103 is connected to the buckle 701. The buckle 701 and the fuselage body 1 are assembled into a whole through a mechanical clamping design, providing assembly support and playing a mechanical connection role. At the same time, the buckle 701 has a certain elastic space, which is convenient for mechanical disassembly and troubleshooting of internal circuit faults.

[0037] The motor bracket 7 is provided with a body PCBA 702, and spring buckles 716 are respectively provided at both ends of the body PCBA 702 for fixing the body PCBA 702. Fixed plates 703 are respectively provided on both sides of the body PCBA 702 to prevent the body PCBA 702 from sliding to both sides.

[0038] The motor bracket 7 is provided with an inner cavity, and the semi-open cavity of the motor bracket 7 can accommodate a dry battery 704, so that the dry battery 704 is suspended and fixed in the cavity. The inner cavity is provided with a dry battery 704, and the two ends of the dry battery 704 are respectively provided with a positive spring 705 and a negative tower spring 706, the positive spring 705 is provided with a first extension line 707, and the negative tower spring 706 is provided with a second extension line 708, and the positive spring 705 and the negative tower spring 706 are respectively connected to the fuselage PCBA 702.

[0039] The body PCBA 702 is provided with a first electrical connection hole 709 and a second electrical connection hole 710 , and the first extension line 707 is located in the first electrical connection hole 709 ; a second through hole 717 is provided below the second electrical connection hole 710 , so that the second extension line 708 passes through the second through hole 717 and enters the second electrical connection hole 710 .

[0040] The dry cell 704, the positive electrode spring 705, the body PCBA 702, and the negative electrode tower spring 706 form a conductive path.

[0041] like Figure 3 As shown, the motor bracket 7 is provided with a first slot 711 and a second slot 712, in which the positive spring 705 and the negative tower spring 706 are respectively embedded. The first slot 711 and the second slot 712 are used to fix the positive spring 705 and the negative tower spring 706 respectively.

[0042] An opening is provided on the body 1, and a button 6 is provided in the opening. The button 6 is connected to the body PCBA 702, and the button 6 controls the switch of the electric toothbrush.

[0043] The motor bracket 7 is provided with a plurality of protrusions, and the shape and height of the protrusions are not restricted. The protrusions are located on both sides of the first extension line 707 and the second extension line 708 for fixing the first extension line 707 and the second extension line 708 .

[0044] like Figure 4 As shown, a toothbrush inner shaft 8 is provided at one end of the motor bracket 7, a motor bracket shockproof pad 801 is provided at one end of the toothbrush inner shaft 8, and a toothbrush inner shaft waterproof cap 803 is provided at the other end of the toothbrush inner shaft 8 to prevent water from entering through the bristles and affecting the performance of the toothbrush inner shaft 8, while playing a certain shock-absorbing role.

[0045] A toothbrush inner shaft waterproof ring 802 is sleeved on the toothbrush inner shaft 8 to prevent water from entering the connection between the body 1 and the toothbrush head 5 and causing damage to the hollow cup motor 804 and the toothbrush inner shaft 8.

[0046] A bracket fixing block 713 is provided at one end of the motor bracket 7, a first rib 714 is provided on the bracket fixing block 713, and a first through hole 715 is provided between the first ribs 714; the motor bracket shock-absorbing pad 801 is provided with a second groove 806, and a notch is provided at one end of the toothbrush inner shaft 8. According to such a structural design, one end of the toothbrush inner shaft 8 and the toothbrush inner shaft waterproof ring 802 are nested in sequence, which can not only reduce the shock of the fuselage body 1 but also prevent water from entering from the connection between the fuselage body 1 and the toothbrush head 5.

[0047] In addition, the motor bracket shock-absorbing pad 801 has an uneven surface on the side that contacts the toothbrush inner shaft 8 to increase friction and avoid relative sliding during use. The toothbrush inner shaft waterproof ring 802 also has an uneven surface on the side that contacts the inner side of the body 1 to also avoid relative sliding during use.

[0048] The connection line between the coreless motor 804 and the body PCBA 702 passes through the first through hole 715 .

[0049] A first groove 101 is provided in the body 1, and one end of the toothbrush inner shaft 8 contacts the first groove 101. The first groove 101 abuts against one end of the toothbrush inner shaft 8, so that the toothbrush inner shaft 8 cannot slide out, thereby connecting the toothbrush head 5 and the body 1 together.

[0050] A hollow cup motor 804 is arranged in the inner shaft 8 of the toothbrush. The hollow cup motor 804 is far away from one end of the body 1. When the hollow cup motor 804 rotates eccentrically, it can bring a vibration effect. This vibration is transmitted downward to the body 1 through the inner shaft 8 of the toothbrush, and on the other hand, it is transmitted to the toothbrush head 5 through the waterproof cap 803 of the inner shaft of the toothbrush. Thus, it can bring the vibration effect required when brushing teeth; the waterproof cap 803 of the inner shaft of the toothbrush is made of soft silicone material, and is in tight interference contact with the toothbrush head 5. When the hollow cup motor 804 is vibrating, it has a very good shock absorption effect, so it can bring a suitable vibration effect to brushing teeth, thereby bringing a good experience to the user.

[0051] The toothbrush inner shaft 8 and the toothbrush inner shaft waterproof cap 803 are both arranged inside the toothbrush head 5. A second rib 805 is arranged on the inner wall of the toothbrush head 5 between the toothbrush head 5 and the toothbrush inner shaft 8, so that the toothbrush inner shaft 8 is firmly fixed inside the toothbrush head 5.

[0052] Replace the dry battery 704. First, screw the lower cover 2 of the body clockwise until it is completely disengaged from the thread and removed; secondly, gently insert the fingernail into the gap between the positive end of the dry battery 704 and the motor bracket 7, press back slightly, and then tilt the dry battery 704 appropriately until it is completely removed; replace the new dry battery 704, install it into the half-open cavity of the motor bracket 7, and then tighten the lower cover 2 of the body to start the machine for use.

[0053] The toothbrush head 5 can be disassembled and assembled at any time when replacement is needed.

[0054] Therefore, the utility model adopts the above-mentioned electric toothbrush with a damped toothbrush head, which is convenient and quick, and the battery can be easily replaced without any tools. It can be replaced manually; the lower cover of the body can be rotated by hand, and no tool detection is required, saving time and cost. The assembly is simple. When assembling the electric toothbrush, only the lower cover of the body needs to be rotated and screwed to align with the body.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. An electric toothbrush with a shock-absorbing toothbrush head, characterized in that: It includes a body, one end of which is provided with a body lower cover, a motor bracket is provided in the body body and the body lower cover, one end of the motor bracket is provided with a toothbrush inner shaft, one end of the toothbrush inner shaft is provided with a motor bracket shockproof pad, and the other end of the toothbrush inner shaft is provided with a toothbrush inner shaft waterproof cap.

2. An electric toothbrush with a damped toothbrush head according to claim 1, characterized in that: A bracket fixing block is arranged on one side of the motor bracket waterproof ring, and a first groove is arranged in the body of the machine, and one end of the inner shaft of the toothbrush contacts with the first groove.

3. An electric toothbrush with a damped toothbrush head according to claim 1, characterized in that: The bracket fixing block is provided with first ribs, first through holes are provided between the first ribs, and the motor bracket anti-vibration pad is provided with a corresponding structure which is nested with the bracket fixing block.

4. The electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: A coreless cup motor is arranged in the inner shaft of the toothbrush, and the coreless cup motor is away from one end of the body; The toothbrush inner shaft and the toothbrush inner shaft waterproof cap are both arranged inside the toothbrush head, and a second rib plate is arranged on the inner wall of the toothbrush head between the toothbrush head and the toothbrush inner shaft.

5. The electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: A body PCBA is arranged on the motor bracket, spring buckles are arranged at both ends of the body PCBA, and fixing plates are arranged at both sides of the body PCBA.

6. The electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: The motor bracket is provided with an inner cavity, in which a dry battery is provided, and a positive pole spring and a negative pole tower spring are provided at both ends of the dry battery, respectively. The positive pole spring is provided with a first extension line, and the negative pole spring is provided with a second extension line. The positive pole spring and the negative pole tower spring are respectively connected to the body PCBA.

7. An electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: One end of the body body connected to the lower cover of the body is provided with a thread, and the lower cover of the body is also provided with a matching thread at a corresponding position, an O-ring is provided between the body body and the lower cover of the body, a toothbrush inner shaft waterproof ring is provided on the toothbrush inner shaft, and the slope provided on the inner side of the body body is connected.

8. The electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: A third rib is arranged on the inner side of the fuselage lower cover, and a slope is arranged on the third rib at the end connected with the fuselage body. A fourth rib is arranged on the fuselage body, and a slope corresponding to the slope on the third rib is arranged on the fourth rib.

9. An electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: Buckles are respectively provided on both sides of the motor bracket, and a third groove is provided on the fuselage body, and the third groove is connected to the buckle; The motor bracket is provided with a first card slot and a second card slot, and a positive pole spring and a negative pole tower spring are respectively embedded in the first card slot and the second card slot.

10. An electric toothbrush with a vibration-damped toothbrush head according to claim 1, characterized in that: The fuselage body is provided with an opening, a button is provided in the opening, and the button is connected to the fuselage PCBA.

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