Negative pressure suction toothbrush

Abstract

This utility model discloses a negative pressure suction toothbrush, including a handle, a brush head and bristles located at one end of the handle. The brush head has a negative pressure chamber, and the handle has a negative pressure suction channel extending from the tail end to the front end, communicating with the negative pressure chamber. A negative pressure hole communicating with the negative pressure chamber is provided on the side of the brush head facing the bristles. A water storage component is located within the negative pressure chamber, having an inlet and an outlet facing the bristles. A control valve is located at the outlet. The water storage component is designed to temporarily store rinsing fluid. Combined with a stop plate, control rod, exposed press valve ball, elastic element, and water outlet channel, the water outlet channel formed between the isolation tube and the control rod, and the seepage hole on the brush head, allow the user to instantly open the water outlet by pressing the press ball on the brush head with their teeth or oral cavity while brushing, controlling the flow of rinsing fluid to the bristle area. The valve automatically closes after releasing the pressure, enabling cleaning and rinsing to be performed with one hand, greatly simplifying the medical process.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing supplies, and in particular to a negative pressure suction toothbrush. Background Technology

[0002] Existing negative pressure suction toothbrushes have fundamental operational flaws in clinical applications: their cleaning solution supply relies entirely on an external syringe, forcing healthcare workers to operate the toothbrush with one hand for oral cleaning while simultaneously controlling the syringe to inject the cleaning solution with the other. This "two-handed separation" operation mode not only significantly increases operational complexity and prolongs care time, but also poses a high risk of spraying or aspiration of the cleaning solution due to improper coordination in the care of patients with limited positioning. At the same time, the syringe has a limited capacity and requires repeated aspiration and replenishment, interrupting the continuity of cleaning. Furthermore, it is difficult to accurately control the flow rate and direction of the liquid with one hand, which can easily cause additional irritation to patients with sensitive oral mucosa. This primitive operation method significantly restricts nursing efficiency and safety. Utility Model Content

[0003] The purpose of this invention is to provide a negative pressure suction toothbrush that solves the problem of traditional suction toothbrushes where the cleaning solution is manually injected through a syringe. This requires medical staff to operate the toothbrush with one hand to clean the mouth while simultaneously controlling the syringe to inject the cleaning solution with the other, which greatly increases the complexity of the operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a negative pressure suction toothbrush, comprising a handle, a brush head and bristles disposed at one end of the handle, the brush head having a negative pressure cavity, the handle having a negative pressure suction channel extending from the tail end to the front end, the negative pressure suction channel communicating with the negative pressure cavity, the side of the brush head facing the bristles having a negative pressure hole communicating with the negative pressure cavity, the negative pressure cavity having a water storage component, the water storage component having a water inlet and a water outlet facing the side of the brush, and a control valve being provided at the water outlet.

[0005] Furthermore, the water storage component includes a water tank and an isolation pipe. The water tank is fixedly disposed in the negative pressure chamber, and the isolation pipe is aligned with the water outlet and extends toward one side of the negative pressure hole to connect with the inner wall of the brush head.

[0006] Furthermore, the control valve includes a water stop plate, a control rod, a pressing valve ball, and an elastic element. The water stop plate is disposed inside the water storage tank and covers the water outlet. One end of the control rod is connected to the water stop plate through the water outlet, and the other end extends towards one side of the brush head. The pressing valve ball is rotatably connected to the end of the control rod away from the water stop plate. One end of the elastic element is fixedly connected to the water storage tank, and the other end is fixedly connected to the water stop plate.

[0007] Furthermore, a water outlet channel is formed between the isolation pipe and the control rod, and the water outlet channel is connected to the inside of the water storage tank.

[0008] Furthermore, the brush head is provided with a water seepage hole between the isolation tube and the control rod.

[0009] Furthermore, a filter screen is provided along the flow path of the water outlet channel.

[0010] Furthermore, a sealing ring is provided on the side of the waterstop away from the elastic member, and the sealing ring has a chamfered fit.

[0011] Furthermore, the tail end of the handle is also connected to a negative pressure interface, which is connected to the negative pressure suction channel.

[0012] Furthermore, it also includes a flushing assembly, which includes a flushing pipe and a flushing connector. The flushing pipe is connected to the inlet of the water storage tank through the negative pressure suction channel, and the flushing connector is connected to the end of the flushing pipe away from the water storage tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model integrates a negative pressure suction channel, a water storage component that controls the flow of rinsing liquid, and a control valve inside the toothbrush. By setting a negative pressure chamber inside the brush head and connecting it with the negative pressure suction channel that passes through the handle, and in conjunction with the negative pressure holes on the negative pressure surface of the brush head, liquid and debris in the oral cavity can be sucked away simultaneously and actively during brushing. This effectively solves the problem of liquid easily accumulating or flowing back in the oral cavity in the prior art, and improves the cleaning effect and comfort.

[0015] 2. The water reservoir is designed to temporarily store the rinsing solution. Together with the stop plate, control lever, exposed push-button valve ball, elastic element, and water outlet channel, along with the water outlet channel formed between the isolation tube and the control lever, and the seepage holes on the brush head, the user only needs to press the push-button on the brush head with their teeth or oral cavity while brushing to instantly open the water outlet and control the flow of rinsing solution to the bristles. The valve automatically closes after releasing the pressure, allowing for one-handed operation of cleaning and rinsing, greatly simplifying the medical process.

[0016] 3. The isolation tube serves two purposes: firstly, it aligns with the water outlet to form a guiding path for the rinsing fluid; secondly, its extension and connection to the inner wall of the brush head effectively isolates the negative pressure chamber from the rinsing fluid outlet path, reducing the risk of rinsing fluid being accidentally sucked into the negative pressure suction channel or causing obstructed water flow due to negative pressure interference. The seepage holes allow the rinsing fluid flowing from the water outlet to evenly penetrate the brush bristle area, enhancing the rinsing effect. The rinsing pipe and rinsing connector of the rinsing assembly are connected to the water inlet of the water storage unit via a water pump, providing a convenient external replenishment channel and ensuring a continuous supply of rinsing fluid to the water storage unit. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a negative pressure suction toothbrush according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the brush head;

[0020] Figure 3 This is a schematic diagram of the control valve structure;

[0021] Figure 4 This is a schematic diagram of the isolation tube structure;

[0022] Figure 5 This is a schematic diagram of the water storage tank.

[0023] Figure 6 This is a schematic diagram of the structure of the seepage hole and the negative pressure hole.

[0024] In the diagram: 1. Handle, 11. Negative pressure suction channel, 12. Negative pressure interface, 2. Brush head, 21. Negative pressure chamber, 22. Negative pressure hole, 3. Brush bristles, 4. Water storage component, 41. Water inlet, 42. Water outlet, 43. Water storage tank, 44. Isolation pipe, 5. Control valve, 51. Water stop plate, 52. Control rod, 53. Press valve ball, 54. Elastic component, 55. Water outlet channel, 56. Seepage hole, 57. Filter screen, 58. Sealing ring, 6. Flushing assembly, 61. Flushing pipe, 62. Flushing connector. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0026] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a negative pressure suction toothbrush, including a handle 1, a brush head 2 and bristles 3 located at one end of the handle 1. The brush head 2 has a negative pressure chamber 21, and the handle 1 has a negative pressure suction channel 11 extending from the tail end to the front end, the negative pressure suction channel 11 communicating with the negative pressure chamber 21. The side of the brush head 2 facing the bristles 3 has a negative pressure hole 22 communicating with the negative pressure chamber 21. The negative pressure chamber 21 has a water storage component 4, the water storage component 4 having a water inlet 41 and a water outlet 42 facing the side of the brush head. A control valve 5 is provided at the water outlet 42. The toothbrush consists of a handle 1, a brush head 2, and bristles 3 as its core components. The negative pressure chamber 21 is opened inside the brush head 2, and the negative pressure suction channel 11 is provided through the handle 1, the two communicating to form a suction system. Multiple sets of negative pressure holes 22 are provided on the surface of the brush head 2, directly communicating with the negative pressure chamber 21, for suction of liquid in the oral cavity. The innovation lies in the integration of a water storage component 4 within the negative pressure chamber 21. The water storage component 4 has an inlet 41 connected to an external water source, and the outlet is arranged facing the brush bristles 3, and is precisely opened and closed by a control valve 5. This structure achieves the integration of three functions: brushing, rinsing, and suction.

[0028] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the water storage component 4 includes a water tank 43 and an isolation pipe 44. The water tank 43 is fixedly installed inside the negative pressure chamber 21. The isolation pipe 44 is aligned with the water outlet 42 and extends towards the negative pressure hole 22, connecting to the inner wall of the brush head 2. The water storage component 4 is composed of the water tank 43 and the isolation pipe 44. The water tank 43 is fixed in the center of the negative pressure chamber 21 as an independent liquid storage unit. The upper end of the isolation pipe 44 is aligned with the water outlet of the water tank 43, and the lower end extends to the inner wall of the brush head 2, forming a physical isolation barrier. This design divides the negative pressure chamber 21 into a liquid storage area and a negative pressure working area, preventing the rinsing liquid from being accidentally aspirated by the negative pressure, while guiding the liquid to flow directionally towards the bristles 3.

[0029] like Figure 3 and Figure 4As shown, the control valve 5 includes a water-stop plate 51, a control rod 52, a pressing valve ball 53, and an elastic element 54. The water-stop plate 51 is disposed inside the water storage tank 43 and covers the water outlet 42. One end of the control rod 52 is connected to the water-stop plate 51 through the water outlet 42, and the other end extends towards one side of the brush head 2. The pressing valve ball 53 is rotatably connected to the end of the control rod 52 away from the water-stop plate 51. One end of the elastic element 54 is fixedly connected to the water storage tank 43, and the other end... The end is fixedly connected to the water stop plate 51; the control valve 5 adopts a purely mechanical structure. The water stop plate 51 covers the water outlet of the water storage tank 43, and a chamfered sealing ring is embedded at the bottom to enhance the sealing performance. The control rod 52 passes through the water outlet and connects to the water stop plate 51. The end extends out to the brush head 2 and is equipped with a ball-shaped pressing head. The spiral spring connects the inner wall of the water storage tank 43 and the water stop plate 51. When the teeth press the ball-shaped pressing head, the control rod 52 lifts the water stop plate 51 to open the water outlet. After the pressure is released, the spring automatically resets and seals. No electric drive is required throughout the process, realizing one-handed operation.

[0030] like Figure 5 As shown, a water outlet channel 55 is formed between the isolation pipe 44 and the control rod 52, and the water outlet channel 55 is connected to the water storage tank 43. The inner wall of the isolation pipe 44 and the outer wall of the control rod 52 form an annular water outlet channel 55. After the flushing liquid enters the channel from the outlet, it is evenly diffused to the roots of the bristles 3 through the seepage holes 56 provided in the brush head 2. A filter screen 57 is provided in the middle section of the channel to intercept impurities and prevent clogging. The liquid path is completely isolated from the negative pressure chamber 21 to ensure that the flushing and suction functions do not interfere with each other.

[0031] like Figure 4 and Figure 6 As shown, the brush head 2 has a seepage hole 56 between the isolation tube 44 and the control rod; the handle 1 has a quick-connect negative pressure interface 12 at the end that is directly connected to the negative pressure channel and can be connected to the hospital's central suction system. The flushing tube 61 of the flushing component 6 is cleverly inserted into the cavity of the negative pressure channel. One end is connected to the water inlet 41 of the water storage tank 43, and the other end is connected to a medical mouthwash bag through the flushing connector 62. The two channels operate independently and have strong expandability.

[0032] Compared to traditional suction toothbrushes, this invention, through the mechanical control valve 5 and integrated flow channel design, allows users to trigger rinsing simply by lightly pressing the ball-shaped pressing head of the brush head 2 with their teeth, simultaneously completing brushing, water injection, and liquid aspiration operations. This significantly improves efficiency compared to the traditional "toothbrush + syringe" dual-instrument operation, especially meeting the single-handed operation needs of paralyzed patients and ICU care scenarios, and significantly reducing the workload of medical staff.

[0033] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A negative pressure suction toothbrush, comprising a handle, a brush head and bristles disposed at one end of the handle, characterized in that, The brush head has a negative pressure chamber, and the handle has a negative pressure suction channel extending from the tail end to the front end. The negative pressure suction channel is connected to the negative pressure chamber. The side of the brush head facing the bristles has a negative pressure hole that connects to the negative pressure chamber. The negative pressure chamber has a water storage component. The water storage component has a water inlet and a water outlet facing the bristles. A control valve is provided at the water outlet.

2. The negative pressure suction toothbrush according to claim 1, characterized in that, The water storage component includes a water tank and an isolation pipe. The water tank is fixedly installed inside the negative pressure chamber. The isolation pipe is aligned with the water outlet and extends toward one side of the negative pressure hole to connect with the inner wall of the brush head.

3. The negative pressure suction toothbrush according to claim 2, characterized in that, The control valve includes a water stop plate, a control rod, a pressing valve ball, and an elastic element. The water stop plate is located inside the water storage tank and covers the water outlet. One end of the control rod is connected to the water stop plate through the water outlet, and the other end extends towards the brush head. The pressing valve ball is rotatably connected to the end of the control rod away from the water stop plate. One end of the elastic element is fixedly connected to the water storage tank, and the other end is fixedly connected to the water stop plate.

4. The negative pressure suction toothbrush according to claim 3, characterized in that, A water outlet channel is formed between the isolation pipe and the control rod, and the water outlet channel is connected to the inside of the water storage tank.

5. The negative pressure suction toothbrush according to claim 3, characterized in that, The brush head has a seepage hole between the isolation tube and the control rod.

6. The negative pressure suction toothbrush according to claim 4, characterized in that, A filter screen is installed along the flow path of the water outlet channel.

7. The negative pressure suction toothbrush according to claim 3, characterized in that, The waterstop plate has a sealing ring on the side away from the elastic element, and the sealing ring has a chamfered fit.

8. The negative pressure suction toothbrush according to claim 1, characterized in that, The handle is also connected to a negative pressure interface at its tail end, which is connected to the negative pressure suction channel.

9. The negative pressure suction toothbrush according to claim 2, characterized in that, It also includes a flushing assembly, which includes a flushing pipe and a flushing connector. The flushing pipe is connected to the inlet of the water storage tank through the negative pressure suction channel, and the flushing connector is connected to the end of the flushing pipe away from the water storage tank.

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