Negative-pressure siphon bacteriostatic electric toothbrush head

Abstract

The invention discloses a negative-pressure siphon bacteriostatic electric toothbrush head, which belongs to the technical field of electric toothbrushes and comprises a toothbrush handle and a toothbrush head detachably connected to the toothbrush handle. The toothbrush head comprises a storage seat, cleaning bristles, a connecting insertion rod and an outer shell; the outer shell is detachably installed on the back face of the storage base, the cleaning bristles are installed on the front face of the storage base, the connecting insertion rod is installed at the bottom of the storage base, the toothbrush further comprises a sealed negative pressure mechanism, and the sealed negative pressure mechanism is located in the toothbrush handle and extends into the storage base. A detachable back cover is arranged on the back of the storage seat, and an air bag puncturing structure is arranged on the back cover. According to the electric toothbrush, bacteriostatic active substances are accurately conveyed to a clean area through a negative pressure siphon mechanism, breeding of harmful bacteria such as streptococcus mutans and porphyromonas gingivalis is inhibited from the source, tooth enamel corrosion and gingival inflammation caused by acidic substances are avoided, and the functional blank that a traditional electric toothbrush cannot inhibit bacteria is filled.

Description

Technical Field

[0001] This invention belongs to the field of electric toothbrush technology, and particularly relates to a negative pressure siphon antibacterial electric toothbrush head. Background Technology

[0002] With increasing awareness of oral health, electric toothbrushes, thanks to their high-frequency vibration and efficient cleaning capabilities, are gradually replacing traditional manual toothbrushes as the mainstream oral hygiene tool. The core working principle of existing electric toothbrushes is that a motor drives the brush head to vibrate at high frequency, causing the bristles to mechanically rub against the tooth surface and interdental spaces, thereby removing plaque, food debris, and other dirt. Compared to manual toothbrushes, they offer higher cleaning efficiency and more even coverage, effectively reducing the risk of oral problems such as cavities and gingivitis caused by inadequate cleaning.

[0003] However, existing electric toothbrush heads still have significant functional limitations, primarily focusing on physical cleaning and failing to effectively inhibit oral bacteria. The oral cavity contains a large number of symbiotic bacteria, including harmful bacteria such as Streptococcus mutans and Porphyromonas gingivalis. When these bacteria multiply on the tooth surface and in areas like the gingival sulcus, they produce acidic substances that erode tooth enamel or cause gingivitis. The high-frequency vibrations of traditional electric toothbrushes can only physically remove existing plaque, failing to inhibit bacterial growth at its source. Summary of the Invention

[0004] This invention provides a negative pressure siphon antibacterial electric toothbrush head to solve the problems in the prior art.

[0005] The present invention adopts the following technical solution: a negative pressure siphon antibacterial electric toothbrush head, including a toothbrush handle and a toothbrush head, wherein the toothbrush head is detachably connected to the toothbrush handle; the toothbrush head includes a storage base, cleaning bristles, a connecting rod, and a housing; the housing is detachably installed on the back of the storage base, the cleaning bristles are installed on the front of the storage base, the connecting rod is installed at the bottom of the storage base and detachably connected to the toothbrush handle, and further includes a sealing negative pressure mechanism, wherein the sealing negative pressure mechanism is located inside the toothbrush handle and extends into the storage base, and the back of the storage base is provided with a detachable back cover, wherein the back cover is provided with an airbag puncture structure.

[0006] A further technical solution is provided in the storage seat, which is provided with a negative pressure sealing cavity. Inside the negative pressure sealing cavity, there is a bristle placement plate. The cleaning bristles are connected to the bristle placement plate. The bristle placement plate is provided with a number of equally spaced capillary channels. Each capillary channel is provided with a unidirectional flow guiding structure.

[0007] In a further technical solution, the back cover includes a plug-in rod, the storage base has a storage groove, the storage groove has a horizontally arranged annular plate, the annular plate has a plug-in hole, the plug-in rod is plugged into the plug-in hole, and the back cover has a lever opening.

[0008] A further technical solution is that the airbag puncture structure includes a pressure plate, a return spring, and a puncture head. The back cover is provided with a moving hole, the return spring is installed in the moving hole and connected to the pressure plate, the bottom of the pressure plate is provided with a moving rod, and the puncture head is connected to the bottom of the moving rod.

[0009] In a further technical solution, a capsule is provided inside the negative pressure sealing cavity, and the capsule contains antibacterial active substances.

[0010] A further technical solution is that the unidirectional flow-guiding structure includes a conical cylinder and a unidirectional diaphragm, wherein the conical cylinder is located within the capillary channel and the unidirectional diaphragm is located at the bottom of the conical cylinder.

[0011] In a further technical solution, the unidirectional diaphragm allows only antibacterial active substances to pass through.

[0012] A further technical solution is that the sealing negative pressure mechanism includes a negative pressure pump, a connecting pipe and a delivery pipe. The negative pressure pump is located inside the toothbrush handle. The connecting pipe is connected to the negative pressure pump and extends to the top of the toothbrush handle. The delivery pipe is located inside the connecting rod and connects to the negative pressure sealing cavity. The top of the connecting pipe is provided with a first connector, and the bottom of the delivery pipe is provided with a second connector that is inserted and mated with the first connector.

[0013] A further technical solution is provided in which the toothbrush handle is equipped with a vibration motor, a vibration head, a control circuit board and a lithium battery. The vibration head is connected to the main shaft of the vibration motor and extends to the top of the toothbrush handle. The connecting rod is inserted into the vibration head. The lithium battery is electrically connected to the control circuit board, the vibration motor and the negative pressure pump. The side wall of the toothbrush handle is provided with a control button connected to the control circuit board.

[0014] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0015] (1) This invention solves the limitation of existing electric toothbrushes that can only perform physical cleaning: by using a negative pressure siphon mechanism, antibacterial active substances are precisely delivered to the cleaning area, inhibiting the growth of harmful bacteria such as Streptococcus mutans and Porphyromonas gingivalis from the source, avoiding acidic substances from corroding tooth enamel and causing gingival inflammation, thus filling the functional gap of traditional electric toothbrushes that cannot inhibit bacteria.

[0016] (2) The present invention has a significant synergistic cleaning effect: combining high-frequency vibration physical cleaning with antibacterial active substances chemical antibacterial action, it can not only remove existing dental plaque, but also inhibit bacterial growth, improve the thoroughness of oral cleaning, and reduce the risk of tooth decay and gingivitis.

[0017] (3) The structure of the present invention is highly detachable: the toothbrush head and handle are detachable, and the back cover and storage base are detachable, which facilitates cleaning, replacement of the toothbrush head or replenishment of antibacterial capsules, extends the product's service life and reduces the cost of use. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a three-dimensional structural diagram of the toothbrush head in this invention;

[0022] Figure 4 This is a three-dimensional structural exploded view of the toothbrush head in this invention;

[0023] Figure 5 This is a top view of the toothbrush head in this invention;

[0024] Figure 6 for Figure 5 A sectional view along line AA.

[0025] Figure 7 This is a three-dimensional structural diagram of the bristle placement plate and cleaning bristles in this invention;

[0026] Figure 8 This is a cross-sectional view of the unidirectional flow-guiding structure in this invention;

[0027] Figure 9 This is a cross-sectional view of the back cover in this invention;

[0028] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0029] Figure 11 This is a three-dimensional structural diagram of the toothbrush handle in this invention;

[0030] Figure 12 for Figure 11 Enlarged view of point C in the middle;

[0031] Figure label:

[0032] Toothbrush handle 1, vibration motor 11, vibration head 12, control circuit board 13, lithium battery 14, control button 15, toothbrush head 2, storage base 20, negative pressure sealing chamber 200, bristle placement plate 201, storage slot 202, annular plate 203, insertion hole 204, capillary channel 205, cleaning bristles 21, connecting rod 22, outer shell 23, back cover 24, insertion rod 240, moving hole 241, sealing negative pressure mechanism 3, negative pressure pump 31, connecting pipe 32, conveying pipe 33, first insertion connector 34, second insertion connector 35, airbag puncture structure 4, pressing plate 41, return spring 42, puncture head 43, moving rod 44, capsule 5, conical cylinder 6, one-way diaphragm 61. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] The following, in conjunction with the accompanying drawings, details the technical solution of a negative pressure siphon antibacterial electric toothbrush head provided by various embodiments of the present invention.

[0035] Reference Figures 1 to 12 As shown, this embodiment of the invention provides a negative pressure siphon antibacterial electric toothbrush head, including a toothbrush handle 1 and a toothbrush head 2. The toothbrush head 2 is detachably connected to the toothbrush handle 1. The toothbrush head 2 includes a storage base 20, cleaning bristles 21, a connecting rod 22, and a housing 23. The housing 23 is detachably installed on the back of the storage base 20, the cleaning bristles 21 are installed on the front of the storage base 20, and the connecting rod 22 is installed at the bottom of the storage base 20 and detachably connected to the toothbrush handle 1. It also includes a sealing negative pressure mechanism 3, which is located inside the toothbrush handle 1 and extends into the storage base 20. The back of the storage base 20 is provided with a detachable back cover 24, and the back cover 24 is provided with an airbag puncture structure 4.

[0036] The overall working principle is as follows:

[0037] Preliminary preparation: Place the capsule 5 containing antibacterial active substances into the negative pressure sealed cavity 200 of the storage seat 20. The back cover 24 is connected to the annular plate 203 in the storage slot 202 of the storage seat 20 by the insertion rod 240 of the back cover 24 and the insertion hole 204 of the annular plate 203 in the storage slot 202 of the storage seat 20 to complete the detachable fixation of the back cover 24 and the storage seat 20. At this time, the air bladder puncture structure 4 on the back cover 24 is in the initial reset state and the puncture head 43 has not contacted the capsule 5.

[0038] Antibacterial substance release trigger: Press the pressing plate 41 on the back cover 24. The pressing plate 41 compresses the return spring 42 in the moving hole 241, which drives the bottom moving rod 44 and the connected piercing head 43 to move downward, piercing the capsule 5 in the negative pressure sealing cavity 200, so that the antibacterial active substance in the capsule 5 flows out into the negative pressure sealing cavity 200. After releasing the pressing plate 41, the return spring 42 drives the pressing plate 41 and the piercing head 43 to reset, waiting for subsequent siphon delivery.

[0039] Negative pressure siphon delivery: When the sealing negative pressure mechanism 3 inside the toothbrush handle 1 is activated, the negative pressure pump 31 works to generate negative pressure. Through the insertion and cooperation of the connecting pipe 32, the first plug 34 and the second plug 35 of the delivery pipe 33, the negative pressure is transmitted to the delivery pipe 33 inside the connecting rod 22, and then acts on the negative pressure sealing cavity 200 of the storage seat 20. The periodic change of air pressure in the negative pressure sealing cavity 200 generates a siphon effect, which attracts the antibacterial active substances in the negative pressure sealing cavity 200 towards the bristles.

[0040] Directional flow and antibacterial effect: Under the siphon effect, the antibacterial active substance diffuses to the cleaning bristles 21 through the capillary channel 205 on the bristle placement plate 201; the one-way flow structure cone 6 and one-way diaphragm 61 in the capillary channel 205 ensure that the antibacterial active substance can only flow unidirectionally from the negative pressure sealing cavity 200 to the bristles, avoiding the backflow of saliva, food residue and other substances in the oral cavity into the negative pressure sealing cavity 200 to contaminate the antibacterial substance; finally, the antibacterial active substance diffuses along the cleaning bristles 21 to the tooth surface, gingival sulcus and other areas to achieve bacterial inhibition.

[0041] Synchronous mechanical cleaning: During the delivery of antibacterial substances, the vibration motor 11 inside the toothbrush handle 1 drives the vibration head 12 to work. The vibration head 12 drives the storage seat 20 and the cleaning bristles 21 to vibrate at high frequency through the connecting rod 22, physically removing plaque and food residue from the tooth surface. At the same time, in conjunction with the diffused antibacterial active substances, a synergistic effect of physical cleaning and chemical antibacterial action is achieved.

[0042] Specifically, the storage base 20 is provided with a negative pressure sealing cavity 200, and a bristle placement plate 201 is provided inside the negative pressure sealing cavity 200. The cleaning bristles 21 are connected to the bristle placement plate 201. The bristle placement plate 201 is provided with a plurality of equally spaced capillary channels 205. Each capillary channel 205 is provided with a one-way flow guiding structure. The one-way flow guiding structure includes a conical cylinder 6 and a one-way diaphragm 61. The conical cylinder 6 is located inside the capillary channel 205, and the one-way diaphragm 61 is located at the bottom of the conical cylinder 6. The one-way diaphragm 61 only allows antibacterial active substances to pass through.

[0043] The negative pressure sealing chamber 200 provides a sealed environment for the storage and siphoning of antibacterial active substances, preventing negative pressure leakage from causing the siphoning effect to fail; several equally spaced capillary channels 205 on the bristle placement plate 201 form a uniform flow guiding array, ensuring that the antibacterial active substances can be evenly distributed to each bundle of cleaning bristles 21; the conical cylinder 6 plays a guiding and converging role for the antibacterial active substances, improving flow efficiency; the one-way diaphragm 61 only allows the antibacterial active substances to pass through, blocking reverse flow and ensuring the purity and effectiveness of the antibacterial substances.

[0044] In this embodiment, the sealed cavity ensures negative pressure stability, avoids siphon effect failure, and ensures continuous and stable delivery of antibacterial active substances; the equally spaced capillary channels 205 achieve uniform distribution of antibacterial substances, avoiding the problem of local bristles lacking antibacterial substances and uneven antibacterial effect; the unidirectional flow structure blocks reverse contamination, ensures the purity of antibacterial substances, and at the same time prevents oral secretions from entering the cavity and causing bacterial growth, thus improving safety in use.

[0045] Specifically, the back cover 24 includes a plug-in rod 240, the storage base 20 is provided with a storage groove 202, the storage groove 202 is provided with a horizontally arranged annular plate 203, the annular plate 203 is provided with a plug-in hole 204, the plug-in rod 240 is plugged into the plug-in hole 204, and the back cover 24 is provided with a lever opening.

[0046] The back cover 24 is quickly and detachably connected to the insertion hole 204 of the annular plate 203 via the insertion rod 240, which facilitates the subsequent replacement of the capsule 5. The lever opening on the annular plate 203 provides a force point for disassembling the back cover 24. Users can easily pry the back cover 24 by inserting their fingernail or a tool into the lever opening, which improves the ease of operation. The annular plate 203 also limits the capsule 5, preventing the capsule 5 from moving freely in the negative pressure sealing cavity 200 and causing inaccurate puncture.

[0047] In this embodiment, the plug-in connection enables quick disassembly and assembly of the back cover 24, facilitating the replacement of the capsule 5 and making operation convenient; the lever opening reduces the difficulty of disassembly and improves the user experience; the annular plate 203 limits the capsule 5, ensuring that the piercing head 43 pierces accurately and avoiding the failure of antibacterial substances to be released.

[0048] Specifically, the airbag puncture structure 4 includes a pressure plate 41, a return spring 42, and a puncture head 43. The back cover 24 is provided with a moving hole 241. The return spring 42 is installed in the moving hole 241 and connected to the pressure plate 41. The bottom of the pressure plate 41 is provided with a moving rod 44, and the puncture head 43 is connected to the bottom of the moving rod 44. The negative pressure sealing cavity 200 is provided with a capsule 5, and the capsule 5 contains antibacterial active substances.

[0049] The reset spring 42 provides reset power to the pressing plate 41, ensuring that the piercing head 43 can disengage from the capsule 5 in time after pressing, avoiding excessive leakage of antibacterial active substances due to continuous piercing; the moving hole 241 guides and limits the moving rod 44 of the pressing plate 41, ensuring that the piercing head 43 can accurately align with the capsule 5, improving the success rate of piercing; the pressing structure is simple to operate and can trigger the release of antibacterial substances without additional tools;

[0050] In this embodiment, the press-type trigger and reset spring 42 is designed, which is simple to operate and can automatically reset, avoiding excessive leakage of antibacterial substances due to misoperation; the guide limit structure improves the puncture accuracy and ensures the stability of antibacterial substance release; integrated into the back cover 24, the structure is compact, does not occupy extra space, and does not affect the overall size and feel of the toothbrush head 2.

[0051] Specifically, the sealing negative pressure mechanism 3 includes a negative pressure pump 31, a connecting pipe 32, and a delivery pipe 33. The negative pressure pump 31 is located inside the toothbrush handle 1. The connecting pipe 32 is connected to the negative pressure pump 31 and extends to the top of the toothbrush handle 1. The delivery pipe 33 is located inside the connecting rod 22 and connects to the negative pressure sealing cavity 200. The top of the connecting pipe 32 is provided with a first connector 34, and the bottom of the delivery pipe 33 is provided with a second connector 35 that is inserted and engaged with the first connector 34.

[0052] The negative pressure pump 31 provides stable negative pressure power. The connecting pipe 32 and the delivery pipe 33 are connected by the first connector 34 and the second connector 35 to achieve quick docking of the toothbrush handle 1 and the toothbrush head 2, while ensuring the sealing of the negative pressure transmission. The delivery pipe 33 is integrated into the connecting rod 22 to achieve structural integration, reduce the exposure of additional pipes, and improve the safety and aesthetics of use.

[0053] In this embodiment, the plug-in tubing connection enables quick docking of the toothbrush head 2 with the handle, facilitating disassembly and replacement; the integrated tubing design improves structural compactness and avoids tubing tangling or damage; stable negative pressure ensures siphon effect, ensuring that antibacterial substances can effectively diffuse to the bristle tips, covering cleaning dead spots such as teeth and gingival sulcus.

[0054] Specifically, the toothbrush handle 1 is equipped with a vibration motor 11, a vibration head 12, a control circuit board 13, and a lithium battery 14. The vibration head 12 is connected to the main shaft of the vibration motor 11 and extends to the top of the toothbrush handle 1. The connecting rod 22 is inserted into the vibration head 12. The lithium battery 14 is electrically connected to the control circuit board 13, the vibration motor 11, and the negative pressure pump 31. The side wall of the toothbrush handle 1 is provided with a control button 15 connected to the control circuit board 13.

[0055] The lithium battery 14 provides stable power support for the vibration motor 11, the negative pressure pump 31, and the control circuit board 13. The control circuit board 13 receives instructions from the control button 15 to realize the coordinated start and stop of the vibration motor 11 and the negative pressure pump 31 and the power adjustment. Users can switch between different working modes according to cleaning needs, such as cleaning only, cleaning and antibacterial, strong antibacterial, etc. The insertion and cooperation between the vibration head 12 and the connecting rod 22 ensures that the vibration energy is efficiently transmitted to the cleaning bristles 21, ensuring the efficiency of physical cleaning.

[0056] In this embodiment, collaborative control enables simultaneous or independent operation of vibration cleaning and antibacterial delivery, meeting different user needs, such as daily cleaning and antibacterial treatment during sensitive periods; lithium battery 14 provides power, improving portability and eliminating the constraints of wires; modular design allows the vibration motor 11 and negative pressure pump 31 to work independently, facilitating maintenance and reducing fault repair costs.

[0057] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A negative pressure siphon antibacterial electric toothbrush head, characterized in that, The utility model relates to a toothbrush, including toothbrush handle (1) and toothbrush head (2), toothbrush head (2) is detachably connected in toothbrush handle (1) on, Toothbrush head (2) includes storage seat (20), cleaning brush (21), connecting plug rod (22) and outer shell (23), The outer shell (23) is detachably installed at the back of the storage seat (20), and the cleaning brush (21) is installed at the front of the storage seat (20), The connecting plug rod (22) is installed at the bottom of the storage seat (20) and is detachably connected with the toothbrush handle (1), It also includes a sealed negative pressure mechanism (3), which is located inside the toothbrush handle (1) and extends into the storage seat (20), The back of the storage seat (20) is provided with a detachable back cover (24), and the back cover (24) is provided with an air bag piercing structure (4).

2. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 1, wherein: The storage seat (20) is provided with a negative pressure sealing cavity (200), and the negative pressure sealing cavity (200) is provided with a brush placing plate (201) inside; The cleaning brush (21) is connected to the brush placing plate (201), and the brush placing plate (201) is provided with a plurality of equally spaced capillary channels (205), and each capillary channel (205) is provided with a one-way flow guide structure inside.

3. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 1, wherein: The back cover (24) includes a plug rod (240), and the storage seat (20) is provided with a storage groove (202); The storage groove (202) is provided with a horizontally arranged annular plate (203), and the annular plate (203) is provided with a plug hole (204); The plug rod (240) is inserted into the plug hole (204), and the back cover (24) is provided with a pulling opening.

4. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 1, wherein: The air bag piercing structure (4) includes a pressing disc (41), a reset spring (42) and a piercing head (43); The back cover (24) is provided with a moving hole (241), and the reset spring (42) is installed in the moving hole (241) and connected with the pressing disc (41); The bottom of the pressing disc (41) is provided with a moving rod (44), and the piercing head (43) is connected to the bottom of the moving rod (44).

5. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 2, wherein: The negative pressure sealing cavity (200) is provided with a capsule (5), and the capsule (5) is provided with a bacteriostatic active substance.

6. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 5, wherein: The one-way flow guide structure includes a conical cylinder (6) and a one-way diaphragm (61), the conical cylinder (6) is located in the capillary channel (205), and the one-way diaphragm (61) is located at the bottom of the conical cylinder (6).

7. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 6, wherein: The one-way diaphragm (61) only allows the bacteriostatic active substance to pass through.

8. The negative pressure siphon bacteria-inhibiting electric toothbrush head of claim 2, wherein: The sealed negative pressure mechanism (3) includes a negative pressure pump (31), a connecting pipeline (32) and a delivery pipeline (33); The negative pressure pump (31) is located in the toothbrush handle (1), the connecting pipeline (32) is connected with the negative pressure pump (31) and extends to the top of the toothbrush handle (1), The delivery pipeline (33) is located in the connecting plug rod (22) and communicates with the negative pressure sealing cavity (200). The top of the connecting pipeline (32) is provided with a first plug (34), and the bottom of the conveying pipeline (33) is provided with a second plug (35) which is plugged with the first plug (34).

9. The negative pressure siphon antibacterial electric toothbrush head of claim 1, wherein: The toothbrush handle (1) is internally provided with a vibration motor (11), a vibration head (12), a control circuit board (13) and a lithium battery (14); The vibration head (12) is connected with the main shaft of the vibration motor (11) and extends to the top of the toothbrush handle (1); The connecting plug rod (22) is plugged with the vibration head (12); The lithium battery (14) is electrically connected with the control circuit board (13), the vibration motor (11) and the negative pressure pump (31), and the side wall of the toothbrush handle (1) is provided with a control button (15) connected with the control circuit board (13).

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