Negative pressure saliva suction cleaning structure and negative pressure saliva suction device

Abstract

The utility model relates to the field of oral medical instruments, in particular to a negative pressure saliva suction cleaning structure and a negative pressure saliva suction device.The negative pressure saliva suction cleaning structure comprises a spray head and a filtering structure, the spray head comprises a nozzle and an inner core, the nozzle is opposite to an inlet of the filtering structure, the axial section of the nozzle is trapezoidal, and the inner core is of a conical structure and comprises a conical head. The conical head extends into the spray head towards the interior of the nozzle, the inner core is fixedly connected with the spray head, and an overflowing channel is formed between the inner core and the nozzle. Medical staff only need to open the cleaning structure, water flow or air flow is sprayed to the filtering structure through the flow passing channel formed between the nozzle and the inner core, the filtering structure is cleaned after the flow passing channel guides and compresses the water flow or the air flow, and the cleaning convenience and the cleaning effect are remarkably improved; the frequency of detaching the negative-pressure saliva suction device for cleaning and maintenance by medical staff is reduced, and the risk of pipeline blockage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oral medical device technology, and in particular to a negative pressure saliva suction cleaning structure and a negative pressure saliva suction device. Background Technology

[0002] Existing dental comprehensive treatment machines have a negative pressure suction system. During oral treatment, negative pressure airflow is used to provide dentists with an efficient and hygienic working environment, avoids interference from the patient's continuous swallowing reflex, and the continuous and powerful suction can effectively prevent infection.

[0003] However, existing negative pressure suction systems are still imperfect. For example, in periodontology, tartar powder sucked into the filter can easily accumulate and clog it; in maxillofacial surgery, blood and mucus sucked in during tooth extractions also tend to adhere to the filter. Therefore, healthcare professionals need to disassemble the outer casing of the negative pressure suction system after each use to clean the internal filter structure. However, the existing filter structure is fixed inside the system, making disassembly and cleaning inconvenient and leading to difficulties for healthcare professionals, often resulting in inadequate cleaning and subsequent clogging. Utility Model Content

[0004] The main purpose of this utility model is to provide a cleaning structure and device for negative pressure saliva suction, so as to solve the technical problem that it is inconvenient for medical staff to clean the internal filter structure of the negative pressure saliva suction device in the prior art.

[0005] To achieve the above objectives, this utility model provides a negative pressure saliva suction cleaning structure, including a nozzle and a filter structure. The nozzle includes a nozzle and an inner core. The nozzle is opposite to the inlet of the filter structure. The axial cross-section of the nozzle is trapezoidal. The inner core is a conical structure and includes a cone head. The cone head extends into the nozzle and is fixedly connected to the nozzle. A flow channel is formed between the inner core and the nozzle.

[0006] Furthermore, the distance between the inner core and the nozzle gradually decreases from the position of the cone head towards the outside of the nozzle.

[0007] Preferably, the device further includes multiple connecting plates, the inner core includes an outer wall, and the outer wall and the nozzle are connected by the connecting plates.

[0008] More preferably, the plurality of connecting plates are fixed to the inner core at equal intervals, the connecting plates and the flow direction of the flow channel are set at the same angle, the connecting plates are rotatably connected to the nozzle, and the outer wall of the inner core is provided with a plurality of protruding structures to reduce the distance between the inner core and the nozzle.

[0009] Preferably, the nozzle has a retractable structure, and the nozzle extends and retracts into the filter structure.

[0010] Preferably, it also includes a valve for controlling water flow or air flow, the valve being connected to the nozzle, and the valve being a pulse solenoid valve or a pneumatic control valve.

[0011] Preferably, it also includes a straw and a connecting tube, the straw being detachably connected to the connecting tube, the filter structure being fixed inside the connecting tube, and the nozzle being connected through the straw.

[0012] More preferably, the filter structure is a filter cup, the filter cup is provided with a hanging ear, and the filter cup is detachably connected to the connecting pipe through the hanging ear.

[0013] This utility model also provides a negative pressure saliva suction device, which has a cleaning structure for negative pressure saliva suction as described in any of the above claims, and further includes a double suction tube, a connecting tube, a collecting tube, and a drain tube. The connecting tube is configured as two tubes that are respectively connected to the double suction tube, and the collecting tube is respectively connected to the connecting tube and the drain tube.

[0014] Furthermore, the two straws have different diameters; the two straws are divided into a strong straw and a weak straw, with the diameter of the strong straw being larger than that of the weak straw.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, medical staff only need to turn on the cleaning structure. Water or airflow is sprayed onto the filter structure through the flow channel formed between the nozzle and the inner core. The flow channel guides and compresses the water or airflow before cleaning the filter structure, which significantly improves the convenience and effectiveness of cleaning, reduces the frequency of medical staff disassembling the negative pressure suction device for cleaning and maintenance, and reduces the risk of pipeline blockage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional view of the internal structure in one embodiment of the present invention;

[0020] Figure 3 for Figure 2 A magnified view of the nozzle position in the image;

[0021] Figure 4 This is an exploded view of the filter cup in one embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a three-dimensional cross-section of the internal structure in another embodiment of the present invention;

[0023] Figure 6 for Figure 5 A magnified view of the nozzle position in the image.

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Explanation of icon numbers:

[0026] 1. Spray head; 11. Nozzle; 12. Inner core; 13. Outer wall; 14. Connecting plate; 2. Valve; 3. Suction tube; 4. Connecting pipe; 5. Manifold; 6. Drain pipe; 7. Filter cup; 71. Hanging ear; 8. Water pipe. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] It is worth noting that, in order to achieve a good cleaning effect, the following embodiments all use water flow as the cleaning medium for description. However, the cleaning medium is not limited to water flow. Air, oil and other cleaning media are all within the protection scope of this utility model.

[0032] Please see the appendix Figure 1-4 This embodiment provides a negative pressure saliva suction cleaning structure, including a nozzle 1 and a filter structure. The nozzle 1 is fixed to the axial position of the filter structure. The nozzle 1 includes a nozzle 11 and an inner core 12. The nozzle 11 is opposite to the inlet of the filter structure. The axial cross section of the nozzle 11 is trapezoidal. The inner core 12 is a conical structure. The inner core 12 includes a cone head. The cone head extends into the nozzle 1 towards the inside of the nozzle 11. The inner core 12 is fixedly connected to the nozzle 1, and a flow channel is formed between the inner core 12 and the nozzle 11.

[0033] In this embodiment, when medical staff activate the cleaning structure, water flows through the flow channel formed between the nozzle 11 and the inner core 12 and is sprayed onto the filter structure. The flow channel can guide and compress the water flow before cleaning the filter structure, which can significantly improve the convenience and effectiveness of cleaning, reduce the frequency of medical staff disassembling the negative pressure suction device for cleaning and maintenance, and reduce the risk of pipeline blockage.

[0034] As a further embodiment, the distance between the inner core 12 and the nozzle 11 gradually decreases from the cone position outward from the nozzle 11, so that when the water flows through the flow channel, it is restricted by the nozzle 11 and the inner core 12, and the water flow will be further compressed, increasing the water pressure and further improving the cleaning effect.

[0035] In one embodiment, the system further includes multiple connecting plates 14. The inner core 12 includes an outer wall 13, and the outer wall 13 and the nozzle 11 are connected by the connecting plates 14. The fixing direction of the connecting plates 14 is perpendicular to the water flow direction. The connecting plates 14 not only fix the inner core 12 to the nozzle 1, but also cut the water flow and divert it, thus accelerating the water flow to a certain extent.

[0036] In another embodiment, the plurality of connecting plates 14 are fixed to the inner core 12 at equal intervals. The connecting plates 14 and the flow channels are arranged at the same angle. The connecting plates 14 are rotatably connected to the nozzles 11. The outer wall 13 of the inner core 12 is provided with several protruding structures (not shown in the figure) to reduce the distance between the inner core 12 and the nozzles 11. At this time, the connecting plates 14 are pushed by the water flow, thereby driving the inner core 12 to rotate. The protruding structures distributed on the inner core 12 compress the cross-section of the flow channel during rotation, resulting in higher water pressure and longer range at local locations, thereby expanding the cleaning area and further improving the cleaning effect.

[0037] In another embodiment, the nozzle 1 is provided with a retractable structure, allowing it to extend and retract into the filter structure. When medical personnel need to enhance the cleaning of specific areas of the filter structure, the output position of the nozzle 1 can be adjusted via the retractable structure, thereby improving the cleaning effect of those specific areas.

[0038] In one embodiment, a valve 2 for controlling water flow is also included. The valve 2 is connected to the nozzle 1 and is either a pulse solenoid valve or a pneumatically controlled valve. The pulse solenoid valve generates a pulsed water flow, further improving the cleaning effect of the water. In medical facilities, compressed air supply lines are typically provided; using a pneumatically controlled valve to control the water flow can save costs.

[0039] In the above embodiment, as a further preferred embodiment, it also includes a straw 3 and a connecting pipe 4, wherein the straw 3 and the connecting pipe 4 are detachably connected, the filter structure is fixed inside the connecting pipe 4, and the nozzle 1 is connected through the straw 3. The filter structure is a filter cup 7, which is provided with a hanging ear 71, and the filter cup 7 is detachably connected to the connecting pipe 4 through the hanging ear 71. Although the cleaning structure of this utility model can improve the cleaning effect to a certain extent, due to equipment maintenance requirements, it is still necessary to disassemble the internal parts regularly for maintenance and deep cleaning. The detachable structure can greatly reduce the difficulty of disassembly and improve work efficiency. The detachable structure in this embodiment is preferably a plug-in structure.

[0040] This utility model also provides a negative pressure saliva suction device, having a cleaning structure for negative pressure saliva suction as described in any of the preceding embodiments. The negative pressure saliva suction device includes a high-pressure water source and a high-pressure air source, with the water pipe 8 or air pipe in the cleaning structure connected to the high-pressure water source and high-pressure air source. It also includes dual suction tubes, connecting pipes 4, a collecting pipe 5, and a drain pipe 6. Two connecting pipes 4 are configured to connect to the dual suction tubes respectively, and the collecting pipe 5 is connected to both the connecting pipes 4 and the drain pipe 6. The dual suction tubes have different diameters, being divided into a strong suction tube and a weak suction tube, with the strong suction tube having a larger diameter than the weak suction tube. During treatment, the strong and weak suction tubes are used alternately according to the treatment plan, maximizing the balance between patient comfort and treatment effectiveness, thus improving the practicality of the negative pressure saliva suction device.

[0041] like Figure 5 and Figure 6 As shown, in another embodiment, which is an extension of the inventive concept of this utility model, the water pipe 8 in this embodiment is directly taken from the high-pressure water source of the negative pressure suction device mentioned above. The nozzle 1 is provided with a plurality of nozzles 11, which are arranged around the filter cup 7. The nozzles 11 are arranged between the sieve gaps of the filter cup 7 and spray water obliquely toward the bottom of the filter cup 7.

[0042] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cleaning structure for negative pressure saliva suction, characterized in that, The device includes a nozzle and a filter structure. The nozzle includes a nozzle and an inner core. The nozzle is opposite to the inlet of the filter structure. The axial cross-section of the nozzle is trapezoidal. The inner core is a conical structure and includes a cone head. The cone head extends into the nozzle and is fixedly connected to the nozzle. A flow channel is formed between the inner core and the nozzle.

2. The negative pressure saliva suction cleaning structure according to claim 1, characterized in that, The distance between the inner core and the nozzle gradually decreases from the position of the cone towards the outside of the nozzle.

3. The negative pressure saliva suction cleaning structure according to claim 1, characterized in that, It also includes multiple connecting plates, the inner core includes an outer wall, and the outer wall and the nozzle are connected by the connecting plates.

4. The negative pressure saliva suction cleaning structure according to claim 3, characterized in that, The multiple connecting plates are fixed to the inner core at equal intervals. The connecting plates and the flow direction of the flow channel are set at the same angle. The connecting plates are rotatably connected to the nozzle. The outer wall of the inner core is provided with several protruding structures to reduce the distance between the inner core and the nozzle.

5. The negative pressure saliva suction cleaning structure according to claim 1, characterized in that, The nozzle is equipped with a retractable structure, and the nozzle extends and retracts into the filter structure.

6. The negative pressure saliva suction cleaning structure according to claim 1, characterized in that, It also includes valves for controlling water or air flow, which are connected to the nozzle and are either pulse solenoid valves or pneumatic valves.

7. The negative pressure saliva suction cleaning structure according to claim 1, characterized in that, It also includes a straw and a connecting tube, the straw being detachably connected to the connecting tube, the filter structure being fixed inside the connecting tube, and the nozzle being connected through the straw.

8. The negative pressure saliva suction cleaning structure according to claim 7, characterized in that, The filter structure is a filter cup, the nozzle is fixed to the axial position of the filter cup, the filter cup is provided with a hanging ear, and the filter cup is detachably connected to the connecting pipe through the hanging ear.

9. A negative pressure saliva suction device, characterized in that, The cleaning structure having the negative pressure suction saliva as described in any one of claims 1-8 further includes a double suction tube, a connecting tube, a collecting tube, and a drain tube, wherein the connecting tube is configured to have two parts respectively connected to the double suction tube, and the collecting tube is respectively connected to the connecting tube and the drain tube.

10. The negative pressure saliva suction device according to claim 9, characterized in that, The two straws have different diameters; the two straws are divided into a strong straw and a weak straw, with the strong straw having a larger diameter than the weak straw.

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