Bottom cover assembly of electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, in particular to a bottom cover assembly of an electric toothbrush, which comprises a bottom plate, a brush handle is arranged above the bottom plate, the top of the bottom plate is connected with a second connecting sleeve, one end of the second connecting sleeve extends into the brush handle, the bottom of the bottom plate is provided with a wiring port, and the wiring port is connected with a main board in the brush handle through a wire. An annular groove is formed in the edge of the bottom of the bottom plate, two fixing blocks are symmetrically installed on one side of the bottom of the annular groove, a first connecting block is connected between the two fixing blocks through a connecting shaft, one end of the first connecting block is connected with a sealing cover, the sealing cover covers the bottom of the bottom plate, and the top of the bottom plate is further coaxially connected with a first connecting sleeve. The bottom of the brush handle is stacked on the top of the bottom plate. By rotating the sealing cover, the sealing cover can block the wiring port, water or other stains are prevented from entering the wiring port in the using process of the electric toothbrush, and the using effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric toothbrush technical field especially relates to a bottom cover subassembly of electric toothbrush. BACKGROUND

[0002] Electric toothbrush is a kind of toothbrush that is driven by motor core to generate high-frequency vibration or rotation to clean teeth, and the electric toothbrush includes brush head and brush handle assembly, the brush handle includes brush handle shell, motor, battery, control assembly etc. installed in the brush handle shell, the battery supplies power for the motor, and the control assembly is used to control the motor to open, close or adjust the vibration frequency of the motor. The motor shaft of the motor extends out of the brush handle shell and is connected with the brush head assembly to drive the brush head to vibrate, and a bottom cover assembly is further arranged at the bottom of the brush handle assembly to block the opening at the top of the brush handle.

[0003] The bottom cover assembly of the existing electric toothbrush is generally fixed on the brush handle by buckle or bolt, and the connection is fastened. When it is necessary to disassemble the brush handle to overhaul the internal mechanism, the user needs to use a screwdriver to disassemble the bottom cover, which is inconvenient to assemble and disassemble. In addition, the charging port on the bottom cover is directly exposed to the external environment, and water or other stains can easily enter the charging port during use, which reduces the use effect. Therefore, we propose a bottom cover assembly of electric toothbrush. SUMMARY

[0004] The utility model aims at solving the above-mentioned shortcomings existing in the prior art and proposes a bottom cover assembly of electric toothbrush.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bottom cover assembly of electric toothbrush is designed, which includes a bottom plate, a brush handle is arranged above the bottom plate, a second connecting sleeve is connected to the top of the bottom plate, one end of the second connecting sleeve extends into the brush handle, a wiring port is arranged at the bottom of the bottom plate, and the wiring port is connected with the mainboard in the brush handle through a wire;

[0006] An annular groove is arranged at the edge of the bottom of the bottom plate, two fixed blocks are symmetrically arranged at one side of the bottom of the annular groove, a first connecting block is connected with the two fixed blocks through a connecting shaft, a sealing cover is connected to one end of the first connecting block, and the sealing cover covers the bottom of the bottom plate;

[0007] A first connecting sleeve is coaxially connected to the top of the bottom plate, when the bottom of the brush handle is stacked on the top of the bottom plate, the first connecting sleeve is sleeved on the bottom side of the brush handle;

[0008] Limiting blocks are arranged at the inner sides of the first connecting sleeve, two spiral grooves are arranged on the bottom side of the brush handle, a connecting groove is arranged at one end of each spiral groove, the bottom of the connecting groove penetrates the bottom of the brush handle, and the limiting blocks extend into the connecting grooves, when the bottom plate is rotated, the limiting blocks move into the corresponding spiral grooves.

[0009] Preferably, the sealing cover is connected with a second connecting block away from one end of the first connecting block, and the side surface of the second connecting block is provided with a first magnetic block, when the sealing cover covers the bottom of the bottom plate, the first magnetic block extends into the annular groove and is fixed on the bottom of the bottom plate by adsorption.

[0010] Preferably, the top end of the connecting groove is flush with the top of one end of the spiral groove.

[0011] Preferably, the rotation angle of the bottom plate is A, 0°≤A≤90°, and when the bottom plate rotates 90°, the limiting block moves to the end of the corresponding spiral groove.

[0012] Preferably, the side surface of each limiting block is provided with a second magnetic block, and when the limiting block moves to the end of the corresponding spiral groove, the second magnetic block is fixed on the end of the corresponding spiral groove by adsorption.

[0013] Preferably, the side surface of each second connecting sleeve is provided with a plurality of sealing rings, and when the second connecting sleeve extends into the inside of the brush handle, the outer surface of the sealing ring is in abutment with the inner side wall of the brush handle.

[0014] Preferably, the inner surface of the sealing cover is provided with a sealing gasket, and when the sealing cover covers the bottom of the bottom plate, the inner surface of the sealing gasket is in sealing connection with the bottom of the bottom plate.

[0015] The design scheme of the utility model has the beneficial effects in the application process:

[0016] 1. By rotating the sealing cover, the sealing cover can block the wiring port, avoiding water or other stains from entering the wiring port during use of the electric toothbrush, and improving the use effect.

[0017] 2. The cooperation of the limiting block and the spiral groove can fix the bottom plate at the bottom of the brush handle, and the fixing is simple, and when disassembling, the bottom plate can be removed from the brush handle for maintenance by only rotating the bottom plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural part of the utility model schematic diagram;

[0019] Figure 2 is a bottom plate structure schematic diagram of the utility model;

[0020] Figure 3 is a bottom plate structure side view of the utility model;

[0021] Figure 4 is a bottom plate structure side view of the utility model when the sealing cover is opened.

[0022] In the figure: 1, bottom plate; 2, first connecting sleeve; 3, sealing ring; 4, brush handle; 5, connecting groove; 6, second connecting sleeve; 7, wiring port; 8, spiral groove; 9, first connecting block; 10, annular groove; 11, sealing cover; 12, limiting block; 13, first magnetic suction block; 14, connecting shaft; 15, fixed block; 16, second magnetic suction block; 17, second connecting block; 18, sealing gasket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Referring to Figures 1-4 A bottom cover assembly of an electric toothbrush, comprising a bottom plate 1, the upper side of the bottom plate 1 is provided with a brush handle 4, and the top of the bottom plate 1 is connected with a second connecting sleeve 6, one end of the second connecting sleeve 6 extends into the inside of the brush handle 4, and a wiring port 7 is formed in the bottom of the bottom plate 1, the wiring port 7 is connected with a main board in the brush handle 4 through a wire, and in the actual use process, the bottom opening of the brush handle 4 can be blocked by the bottom plate 1, and when charging is needed, the staff can insert a charging wire into the wiring port 7, so that the battery in the brush handle 4 can be charged.

[0025] As Figure 2 and Figure 3 shown, the bottom edge of the bottom plate 1 is provided with an annular groove 10, two fixed blocks 15 are symmetrically installed on one side of the bottom of the annular groove 10, and a first connecting block 9 is connected between the two fixed blocks 15 through a connecting shaft 14, one end of the first connecting block 9 is connected with a sealing cover 11, and the sealing cover 11 covers the bottom of the bottom plate 1, in the actual use process, the bottom of the bottom plate 1 can be covered by the sealing cover 11, and then the wiring port 7 is blocked, so that water or other stains cannot enter the inside of the wiring port 7 in the use process.

[0026] As Figure 3 and Figure 4 shown, the inner surface of the sealing cover 11 is provided with a sealing gasket 18, when the sealing cover 11 covers the bottom of the bottom plate 1, the inner surface of the sealing gasket 18 is sealingly connected with the bottom of the bottom plate 1, the gap between the sealing cover 11 and the bottom plate 1 can be sealed by the sealing gasket 18, and the waterproof effect is improved.

[0027] Further, as Figure 4 shown, one end of the sealing cover 11 away from the first connecting block 9 is connected with a second connecting block 17, the side surface of the second connecting block 17 is provided with a first magnetic suction block 13, when the sealing cover 11 covers the bottom of the bottom plate 1, the first magnetic suction block 13 extends into the annular groove 10 and is fixed on the bottom of the bottom plate 1 by adsorption, the sealing cover 11 can be fixed by the first magnetic suction block 13, and the fixing is convenient.

[0028] As shown in Figure 1 and Figure 2 , the first connecting sleeve 2 is coaxially connected on the top of the bottom plate 1, when the bottom of the brush handle 4 is stacked on the top of the bottom plate 1, the first connecting sleeve 2 is sleeved on the bottom side of the brush handle 4, in actual use, through the cooperation of the first connecting sleeve 2 and the brush handle 4, the bottom plate 1 can be limited, and the connection stability of the bottom plate 1 and the brush handle 4 is improved.

[0029] As shown in Figure 1 and Figure 3 , the first connecting sleeve 2 is coaxially connected on the top of the bottom plate 1, when the bottom of the brush handle 4 is stacked on the top of the bottom plate 1, the first connecting sleeve 2 is sleeved on the bottom side of the brush handle 4, in actual use, through the cooperation of the first connecting sleeve 2 and the brush handle 4, the bottom plate 1 can be limited, and the connection stability of the bottom plate 1 and the brush handle 4 is improved.

[0030] As shown in Figure 3 , one side of each limiting block 12 is provided with a second magnetic block 16, when the limiting block 12 moves to the end of the corresponding spiral groove 8, the second magnetic block 16 is adsorbed and fixed at the end of the corresponding spiral groove 8, under the adsorption force of the second magnetic block 16, the limiting block 12 can be fixed at one end of the spiral groove 8, and then the bottom plate 1 and the brush handle 4 are fixed together, which is convenient to install.

[0031] It should be noted that, as shown in Figure 1 and Figure 2 , each second connecting sleeve 6 is provided with a plurality of sealing rings 3, the sealing ring 3 is made of sealing rubber material or other elastic material with sealing performance, when the second connecting sleeve 6 extends into the brush handle 4, the outer surface of the sealing ring 3 abuts against the inner side wall of the brush handle 4, in actual use, the sealing ring 3 can seal the gap between the second connecting sleeve 6 and the inner wall of the brush handle 4, and the friction between the sealing ring 3 and the brush handle 4 can also increase the friction between the second connecting sleeve 6 and the brush handle 4, further improving the stability of the bottom plate 1.

[0032] Specifically, during installation, the operator aligns the base plate 1 with the bottom of the brush handle 4, then inserts the second connecting sleeve 6 on the base plate 1 into the brush handle 4. As the second connecting sleeve 6 moves inwards towards the brush handle 4, the first connecting sleeve 2 covers the outside of the brush handle 4, and the limiting block 12 moves along the connecting groove 5. When the limiting block 12 reaches the end of the connecting groove 5, the operator rotates the base plate 1. The base plate 1 drives the limiting block 12 to rotate, causing the limiting block 12 to move along the spiral groove 8. Consequently, during rotation, the base plate 1 moves synchronously towards the brush handle 4 under the action of the spiral groove 8. When the limiting block 12 reaches the end of the connecting groove 5, the operator rotates the base plate 1. When block 12 moves to the end of spiral groove 8, the top of base plate 1 abuts against the bottom of brush handle 4, thus completing the installation of base plate 1. Installation is convenient. Afterwards, the operator can charge the electric toothbrush by connecting the wiring port 7 to the charging cable. After charging is complete and the charger is unplugged, the user can rotate the sealing cover 11 and place it on the bottom of base plate 1, so that the first magnetic block 13 is attracted and fixed to the bottom of base plate 1, thus fixing the sealing cover 11. In this way, the sealing gasket 18 inside the sealing cover 11 will cover and seal the wiring port 7, preventing water or other stains from entering the wiring port 7 when using the electric toothbrush.

[0033] Furthermore, such as Figure 1 As shown, the top of the connecting groove 5 is flush with the top of one end of the spiral groove 8, so that when the limiting block 12 moves to the top of the connecting groove 5, the connecting groove 5 will not jam the limiting block 12.

[0034] Furthermore, the rotation angle of the base plate 1 is A, 0°≤A≤90°, and when the base plate 1 rotates 90°, the limiting block 12 moves to the end of the corresponding spiral groove 8, so that the base plate 1 will not obstruct the connection between the wiring port 7 and the internal main board of the brush handle 4 during rotation.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bottom cover assembly for an electric toothbrush, comprising a bottom plate (1), characterized in that: A brush handle (4) is provided above the base plate (1), and a second connecting sleeve (6) is connected to the top of the base plate (1). One end of the second connecting sleeve (6) extends into the inside of the brush handle (4). A wiring port (7) is provided at the bottom of the base plate (1). The wiring port (7) is connected to the main board inside the brush handle (4) through a wire. An annular groove (10) is provided on the bottom edge of the base plate (1). Two fixing blocks (15) are symmetrically installed on one side of the bottom of the annular groove (10). A first connecting block (9) is connected between the two fixing blocks (15) through a connecting shaft (14). A sealing cover (11) is connected to one end of the first connecting block (9), and the sealing cover (11) covers the bottom of the base plate (1). A first connecting sleeve (2) is coaxially connected to the top of the base plate (1). When the bottom of the brush handle (4) is stacked on the top of the base plate (1), the first connecting sleeve (2) is fitted on the bottom side of the brush handle (4). Limiting blocks (12) are installed on both sides of the inside of the first connecting sleeve (2). Two spiral grooves (8) are provided on the bottom side of the brush handle (4), and a connecting groove (5) is opened at one end of each spiral groove (8). The bottom of the connecting groove (5) penetrates the bottom of the brush handle (4), and the limiting block (12) extends into the connecting groove (5). When the base plate (1) is rotated, the limiting block (12) moves into the corresponding spiral groove (8).

2. The bottom cover assembly of an electric toothbrush according to claim 1, characterized in that: The sealing cap (11) is connected to a second connecting block (17) at the end away from the first connecting block (9). A first magnetic block (13) is installed on the side of the second connecting block (17). When the sealing cap (11) is placed on the bottom of the base plate (1), the first magnetic block (13) extends into the annular groove (10) and is attracted and fixed to the bottom of the base plate (1).

3. The bottom cover assembly of an electric toothbrush according to claim 1, characterized in that: The top of the connecting groove (5) is flush with the top of one end of the spiral groove (8).

4. The bottom cover assembly of an electric toothbrush according to claim 3, characterized in that: The rotation angle of the base plate (1) is A, 0°≤A≤90°, and when the base plate (1) rotates 90°, the limiting block (12) moves to the end of the corresponding spiral groove (8).

5. The bottom cover assembly of an electric toothbrush according to claim 4, characterized in that: Each limiting block (12) has a second magnetic block (16) installed on one side. When the limiting block (12) moves to the end of the corresponding spiral groove (8), the second magnetic block (16) is attracted and fixed to the end of the corresponding spiral groove (8).

6. The bottom cover assembly of an electric toothbrush according to claim 1, characterized in that: Each second connecting sleeve (6) has several sealing rings (3) installed on its side. When the second connecting sleeve (6) extends into the brush handle (4), the outer surface of the sealing rings (3) abuts against the inner side wall of the brush handle (4).

7. The bottom cover assembly of an electric toothbrush according to claim 1, characterized in that: A sealing gasket (18) is installed on the inner surface of the sealing cover (11). When the sealing cover (11) covers the bottom of the base plate (1), the inner surface of the sealing gasket (18) is sealed to the bottom of the base plate (1).

Images