Anti-suction saliva collection mechanism for dental treatment machine

Abstract

The utility model relates to medical instrument technical field discloses a kind of saliva collection mechanism for preventing back suction for dental treatment machine, including base and collecting jar one, the left side of base top is provided with collecting jar one.The utility model is provided with tank cover one, branch pipe one, suction main pipe, suction pipe one, connecting pipe, check valve one, switch valve one, check valve two, branch pipe three and switch valve four, by connecting suction pipe two into machine suction pipeline, then suction main pipe is connected into saliva suction pipeline, start machine to make the negative pressure inside collecting jar one, saliva can be sucked into by pipeline by suction main pipe, under the action of negative pressure suction force, check valve one inside valve core can be opened downward, saliva can be introduced to the inside of collecting jar one by switch valve four, branch pipe three, check valve one and branch pipe one and is collected centrally, when machine suddenly stops, backflow liquid can automatically press check valve one inside valve core on valve seat upward, prevent back suction backflow.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a saliva collection mechanism for dental treatment machines that prevents backflow. Background Technology

[0002] A dental treatment machine, also known as a comprehensive dental treatment machine, is the core equipment for oral diagnosis and treatment. It achieves efficient treatment by integrating multiple functional systems. It also integrates a three-in-one gun for water spraying, air spraying, and saliva suction. With the help of foot pedal control, it can achieve water-air separation operation. The negative pressure suction system can quickly remove saliva and debris, with a flow rate of up to 9000L / min. In order to facilitate the centralized collection of the removed saliva during the saliva suction operation, a saliva collection mechanism for preventing backflow is required for the dental treatment machine.

[0003] However, in actual use, the anti-backflow saliva collection mechanism of dental treatment machines has shortcomings. During normal negative pressure suction operation, if the equipment suddenly stops working due to a power outage, the negative pressure generator may generate a momentary pressure difference due to the power interruption. If liquid remains in the saliva collection container or pipeline, it may be drawn back into the equipment due to pressure imbalance. Furthermore, negative pressure backflow can easily cause contaminants such as saliva and blood to enter dead corners of the pipeline, making it inconvenient to prevent backflow of saliva during negative pressure suction.

[0004] Now, a novel anti-backflow saliva collection mechanism for dental treatment machines is proposed to address the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a saliva collection mechanism for dental treatment machines that prevents back suction, in order to solve the problem mentioned in the background art of the inconvenience of preventing back suction of saliva from negative pressure aspiration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a saliva collection mechanism for a dental treatment machine that prevents backflow, comprising a base and a collection container 1. The collection container 1 is disposed on the left side of the top of the base, and a lid 1 is disposed on the top of the collection container 1. A branch pipe 1 is fixed to the left side of the top of the lid 1, and a branch pipe 3 is disposed on the top of the branch pipe 1. A suction main pipe is disposed on the top of the branch pipe 3. A check valve 1 is installed between the branch pipe 1 and the branch pipe 3. A check valve 2 is fixed to the right side of the bottom end of the suction main pipe. A connecting pipe is disposed on the right side of the suction main pipe. A switch valve 1 is installed and fixed between the suction main pipe and the connecting pipe. An air extraction pipe 1 is fixed to the right side of the top of the lid 1. A switch valve 4 is installed and fixed to the left side of the bottom end of the suction main pipe. The top end of the branch pipe 3 is fixedly connected to the bottom end of the switch valve 4.

[0007] As a further technical solution of this utility model, the main suction pipe is connected to the inside of the connecting pipe through a switch valve one, and the branch pipe one is connected to the inside of the main suction pipe through a check valve one, a branch pipe three and a switch valve four.

[0008] As a further technical solution of this utility model, the bottom end of the first branch pipe penetrates the interior of the first canister cover and communicates with the interior of the first collection tank, and the first suction pipe is connected to the interior of the first collection tank.

[0009] As a further technical solution of this utility model, positioning rings are fixed on both sides of the top of the base. A collection tank 2 is provided on the right side of the top of the base, and a can cover 2 is provided on the top of the collection tank 2. A branch pipe 2 is fixed on the left side of the top of the can cover 2, and the top of the branch pipe 2 is fixedly connected to the bottom of the check valve 2. A branch pipe 1 is fixed on the right side of the top of the can cover 2, and the branch pipe 1 communicates with the interior of the collection tank 2. A suction pipe 2 is provided on the right side of the suction pipe 1. A switch valve 3 is installed and fixed between the suction pipe 1 and the suction pipe 2. A branch pipe 2 is fixed at the bottom of the suction pipe 2. A switch valve 2 is installed and fixed between the branch pipe 1 and the branch pipe 2. The bottom of the branch pipe 2 penetrates the interior of the can cover 2 and communicates with the interior of the collection tank 2. The branch pipe 1 communicates with the interior of the suction pipe 2 through the switch valve 2 and the branch pipe 2. The suction pipe 1 communicates with the interior of the suction pipe 2 through the switch valve 3.

[0010] As a further technical solution of this utility model, a side cover one is provided on the left side of the top of the base, a side cover two is provided on the right side of the top of the base, a fixing frame is fixed at both ends of both sides of the base, a fixing foot is fixed at both ends of the bottom left side of the side cover one and the bottom right side of the side cover two, and the fixing foot is hinged to the inside of the fixing frame, a handle is fixed at the top left side of the side cover one and the top right side of the side cover two, and an opening is provided at the inside of the top right side of the side cover one and the top left side of the side cover two.

[0011] As a further technical solution of this utility model, two ends of the top right side of the first side cover are respectively fixed with a first fixing plate, and two ends of the top left side of the second side cover are respectively fixed with a second fixing plate. A locking rod is provided on the right side of the second fixing plate, and a locking ring is provided on the left side of the locking rod. The left side of the locking rod passes through the interior of the second fixing plate and the first fixing plate respectively. The locking rod is provided with an external thread, and the locking ring is rotatably connected to the outside of the locking rod.

[0012] As a further technical solution of this utility model, the four corners of the bottom of the base are respectively fixed with moving wheels, the bottom of the outer side of the first can lid and the second can lid are respectively provided with external threads, the top of the first collection can and the second collection can are respectively provided with internal threads that cooperate with the external threads, the first can lid is threaded to the top of the first collection can, and the second can lid is threaded to the top of the second collection can.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a can lid, a branch pipe, a suction main pipe, an air suction pipe, a connecting pipe, a check valve, a switch valve, a check valve, a branch pipe, a switch valve, and a second check valve, when the saliva collection mechanism is installed and used, the second air suction pipe is connected to the machine's air suction pipe, and then the suction main pipe is connected to the saliva suction pipe. When the machine is started, a negative pressure is generated inside the collection can. Saliva can be drawn in through the pipe via the suction main pipe. Under the action of the negative pressure suction force, the valve core inside the check valve can automatically open downwards. Saliva can be guided into the inside of the collection can for centralized collection through the switch valve, the third branch pipe, the first check valve, and the first branch pipe. When the machine suddenly stops, the backflow liquid can automatically press the valve core inside the check valve upwards onto the valve seat to prevent backflow and avoid saliva backflow.

[0014] The saliva collection mechanism is equipped with a collection tank 1, a tank cover 1, a branch pipe 1, a suction main pipe, an air extraction pipe 1, a connecting pipe, a branch pipe 2, a branch pipe 1, a side cover 2, a collection tank 2, a positioning ring, a tank cover 2, a check valve 1, a switch valve 1, a check valve 2, a branch pipe 2, a switch valve 2, a branch pipe 3, a switch valve 3, an air extraction pipe 2, and a switch valve 4. When the inside of the collection tank 1 is almost full, the inside of the collection tank 1 can be sealed by opening switch valve 1 and switch valve 2, while simultaneously closing switch valve 4 and switch valve 3. The collection can then be continued in the collection tank 2 without stopping the machine. Afterward, the collection tank 1 can be removed and cleaned.

[0015] The collection mechanism is equipped with a base, a fixed frame, fixed feet, side cover one, a handle, side cover two, a locking ring, a fixed plate one, a fixed plate two, a locking rod, and an opening. When the collection mechanism is installed and used, side cover one and side cover two are hinged on both sides of the top of the base. Side cover one and side cover two can be used to provide auxiliary dust protection for the outside of the collection component, reducing dust accumulation and damage to the outside of the collection component. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a partial front view structural diagram of the present invention;

[0018] Figure 3 This is a top view of a partial structure of the present invention;

[0019] Figure 4 This is a partial cross-sectional view of the collection tank of this utility model.

[0020] In the diagram: 1. Casters; 2. Base; 3. Mounting frame; 4. Mounting feet; 5. Side cover 1; 6. Collection tank 1; 7. Tank lid 1; 8. Handle; 9. Branch pipe 1; 10. Suction main pipe; 11. Suction pipe 1; 12. Connecting pipe; 13. Branch pipe 2; 14. Branch pipe 1; 15. Side cover 2; 16. Collection tank 2; 17. Positioning ring; 18. Tank lid 2; 19. Check valve 1; 20. Switch valve 1; 21. Check valve 2; 22. Branch pipe 2; 23. Switch valve 2; 24. Branch pipe 3; 25. Switch valve 3; 26. Suction pipe 2; 27. Locking ring; 28. Mounting plate 1; 29. ​​Mounting plate 2; 30. Locking rod; 31. Opening; 32. Switch valve 4. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides an embodiment: a saliva collection mechanism for a dental treatment machine that prevents backflow, including a base 2 and a collection tank 6. The collection tank 6 is provided on the left side of the top of the base 2, and a can lid 7 is provided on the top of the collection tank 6. A branch pipe 9 is fixed on the left side of the top of the can lid 7, and a branch pipe 24 is provided on the top of the branch pipe 9. A suction main pipe 10 is provided on the top of the branch pipe 24. A check valve 19 is installed between the branch pipe 9 and the branch pipe 24. A check valve 21 is fixed on the right side of the bottom of the suction main pipe 10. A connecting pipe 12 is provided on the right side of the suction main pipe 10. A switch valve 20 is installed and fixed between the suction main pipe 10 and the connecting pipe 12. An air suction pipe 11 is fixed on the right side of the top of the can lid 7. A switch valve 32 is installed and fixed on the left side of the bottom of the suction main pipe 10. The top of the branch pipe 24 is fixedly connected to the bottom of the switch valve 32.

[0023] The main suction pipe 10 is connected to the inside of the connecting pipe 12 through the switch valve 20. The branch pipe 9 is connected to the inside of the main suction pipe 10 through the check valve 19, the branch pipe 24 and the switch valve 32. The bottom end of the branch pipe 9 passes through the inside of the can cover 7 and is connected to the inside of the collection tank 6. The suction pipe 11 is connected to the inside of the collection tank 6.

[0024] Furthermore, the check valve 19 and check valve 21 are respectively composed of a valve body, a valve core, and a return spring. When the pressure of the internal medium on the valve core is greater than the spring pressure, the valve core is pushed open so that the medium can flow normally. When the medium flows in reverse, the valve core is pressed against the valve seat to prevent liquid backflow.

[0025] Specifically, such as Figure 1 and Figure 2 As shown, the saliva collection mechanism includes a canister cap 7, a branch pipe 9, a main suction pipe 10, an air extraction pipe 11, a connecting pipe 12, a check valve 19, a switch valve 20, a second check valve 21, a branch pipe 34, and a switch valve 42. When the saliva collection mechanism is installed and used, the second air extraction pipe 26 is connected to the machine's air extraction pipe, and then the main suction pipe 10 is connected to the saliva suction pipe. Starting the machine creates negative pressure inside the collection canister 6. Saliva can be drawn in through the main suction pipe 10. Under the negative pressure suction, the valve core inside the check valve 19 automatically opens downwards, allowing saliva to be collected centrally inside the collection canister 6 via the switch valve 42, branch pipe 34, check valve 19, and branch pipe 9. If the machine suddenly stops, the backflow liquid automatically presses the valve core inside the check valve 19 upwards onto the valve seat to prevent backflow and avoid saliva backflow.

[0026] Positioning rings 17 are fixed to both sides of the top of the base 2. A collection tank 16 is provided on the right side of the top of the base 2, and a can cover 18 is provided on the top of the collection tank 16. A branch pipe 13 is fixed to the left side of the top of the can cover 18, and the top of the branch pipe 13 is fixedly connected to the bottom of the check valve 21. A branch pipe 14 is fixed to the right side of the top of the can cover 18, and the branch pipe 14 is connected to the inside of the collection tank 16. A suction pipe 26 is provided on the right side of the suction pipe 11. A switch valve 25 is installed and fixed between the first 11 and the second 26. A branch pipe 22 is fixed to the bottom end of the second 26. A switch valve 23 is installed and fixed between the first branch pipe 14 and the second branch pipe 22. The bottom end of the second branch pipe 13 passes through the inside of the tank cover 28 and connects to the inside of the collection tank 26. The first branch pipe 14 is connected to the inside of the second 26 through the switch valve 23 and the second branch pipe 22. The first 11 is connected to the inside of the second 26 through the switch valve 25.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, when the saliva collection mechanism is installed and in use, when the inside of the collection tank 1 6 is almost full, the inside of the collection tank 1 6 can be sealed by opening the switch valve 1 20 and the switch valve 2 23, while closing the switch valve 4 32 and the switch valve 3 25. The collection operation can then be continued in the collection tank 2 16 without stopping the machine. Afterwards, the collection tank 1 6 can be removed and cleaned.

[0028] A side cover 5 is provided on the left side of the top of the base 2, and a side cover 15 is provided on the right side of the top of the base 2. Fixing brackets 3 are fixed at both ends of both sides of the base 2. Fixing feet 4 are fixed at both ends of the bottom left side of the side cover 5 and the bottom right side of the side cover 15. The fixing feet 4 are hinged to the inside of the fixing brackets 3. A handle 8 is fixed at the top left side of the side cover 5 and the top right side of the side cover 15. An opening 31 is opened at the inside of the top right side of the side cover 5 and the top left side of the side cover 15.

[0029] The top right ends of the side cover 15 are fixed with fixing plates 28, and the top left ends of the side cover 15 are fixed with fixing plates 29. The right side of the fixing plate 29 is provided with a locking rod 30, and the left side of the locking rod 30 is provided with a locking ring 27. The left side of the locking rod 30 passes through the interior of the fixing plate 29 and the fixing plate 28, respectively. The outside of the locking rod 30 is provided with external threads, and the locking ring 27 is threadedly rotatably connected to the outside of the locking rod 30.

[0030] Furthermore, side cover 1 (5) and side cover 2 (15) are made of transparent acrylic material;

[0031] Specifically, such as Figure 1 and Figure 3 As shown, when the collection mechanism is installed and used, side cover 1 5 and side cover 2 15 are hinged on both sides of the top of the base 2. The side cover 1 5 and side cover 2 15 can be used to provide auxiliary dust protection for the outside of the collection component, reducing dust accumulation and damage to the outside of the collection component.

[0032] The four corners at the bottom of the base 2 are respectively fixed with movable wheels 1. The bottom of the outer side of the can lid 1 7 and the can lid 2 18 are respectively provided with external threads. The top of the collection can 1 6 and the collection can 2 16 are respectively provided with internal threads that cooperate with the external threads. The can lid 1 7 is threaded to the top of the collection can 1 6, and the can lid 2 18 is threaded to the top of the collection can 2 16.

[0033] Working principle: When the saliva collection mechanism is installed and used, the suction pipe 26 is connected to the machine's suction pipe, and then the suction main pipe 10 is connected to the saliva suction pipe. When the machine is started, a negative pressure is generated inside the collection tank 6. Saliva can be drawn in through the pipe via the suction main pipe 10. Under the action of negative pressure suction, the valve core inside the check valve 19 can automatically open downward. Saliva can be guided into the collection tank 6 for centralized collection through the switch valve 4 32, branch pipe 3 24, check valve 19 and branch pipe 9. When the machine suddenly stops, the backflow liquid can automatically press the valve core inside the check valve 19 upward onto the valve seat to prevent backflow and avoid saliva backflow. When the saliva collection mechanism is installed and in use, when the inside of collection tank 16 is almost full, the inside of collection tank 16 can be sealed by opening switch valve 120 and switch valve 23, while simultaneously closing switch valve 42 and switch valve 35. The collection can then be continued by connecting to collection tank 26 without shutting down the machine. Afterwards, collection tank 16 can be removed for cleaning. Furthermore, during installation and use, side covers 15 and 25 are hinged to both sides of the top of the base 2. These side covers provide auxiliary dust protection for the outside of the collection components, reducing dust accumulation and damage.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A saliva collection mechanism for a dental treatment machine that prevents backflow, comprising a base (2) and a collection container (6), characterized in that: A collection tank 1 (6) is provided on the left side of the top of the base (2), and a tank cover 1 (7) is provided on the top of the collection tank 1 (6). A branch pipe 1 (9) is fixed on the left side of the top of the tank cover 1 (7), and a branch pipe 3 (24) is provided on the top of the branch pipe 1 (9). A suction main pipe (10) is provided on the top of the branch pipe 3 (24). A check valve 1 (19) is installed between the branch pipe 1 (9) and the branch pipe 3 (24). The bottom right of the suction main pipe (10) A check valve 2 (21) is fixed on the side. A connecting pipe (12) is provided on the right side of the suction main pipe (10). A switch valve 1 (20) is installed and fixed between the suction main pipe (10) and the connecting pipe (12). A suction pipe 1 (11) is fixed on the right side of the top of the can cover 1 (7). A switch valve 4 (32) is installed and fixed on the left side of the bottom end of the suction main pipe (10). The top end of the branch pipe 3 (24) is fixedly connected to the bottom end of the switch valve 4 (32).

2. The anti-backflow saliva collection mechanism for a dental treatment machine according to claim 1, characterized in that: The main suction pipe (10) is connected to the inside of the connecting pipe (12) through the first switching valve (20), and the first branch pipe (9) is connected to the inside of the main suction pipe (10) through the first check valve (19), the third branch pipe (24) and the fourth switching valve (32).

3. The anti-backflow saliva collection mechanism for a dental treatment machine according to claim 2, characterized in that: The bottom end of the first branch pipe (9) penetrates the interior of the first can cover (7) and communicates with the interior of the first collection tank (6), and the first suction pipe (11) communicates with the interior of the first collection tank (6).

4. The anti-backflow saliva collection mechanism for a dental treatment machine according to claim 1, characterized in that: Positioning rings (17) are fixed on both sides of the top of the base (2). A collection tank (16) is provided on the right side of the top of the base (2), and a can cover (18) is provided on the top of the collection tank (16). A branch pipe (13) is fixed on the left side of the top of the can cover (18), and the top of the branch pipe (13) is fixedly connected to the bottom of the check valve (21). A branch pipe (14) is fixed on the right side of the top of the can cover (18), and the branch pipe (14) is connected to the inside of the collection tank (16). A suction pipe (26) is provided on the right side of the suction pipe (11). A switch valve three (25) is installed and fixed between (11) and the second suction pipe (26). A branch pipe two (22) is fixed at the bottom end of the second suction pipe (26). A switch valve two (23) is installed and fixed between the first branch pipe (14) and the second branch pipe (22). The bottom end of the second branch pipe (13) penetrates the interior of the second tank cover (18) and communicates with the interior of the second collection tank (16). The first branch pipe (14) communicates with the interior of the second suction pipe (26) through the switch valve two (23) and the second branch pipe (22). The first suction pipe (11) communicates with the interior of the second suction pipe (26) through the switch valve three (25).

5. The anti-backflow saliva collection mechanism for a dental treatment machine according to claim 1, characterized in that: A side cover (5) is provided on the left side of the top of the base (2), and a side cover (15) is provided on the right side of the top of the base (2). Fixing brackets (3) are fixed at both ends of both sides of the base (2). Fixing feet (4) are fixed at both ends of the bottom left side of the side cover (5) and the bottom right side of the side cover (15). The fixing feet (4) are hinged to the inside of the fixing brackets (3). A handle (8) is fixed at the top left side of the side cover (5) and the top right side of the side cover (15). An opening (31) is opened at the inside of the top right side of the side cover (5) and the top left side of the side cover (15).

6. The anti-backflow saliva collection mechanism for a dental treatment machine according to claim 5, characterized in that: The two ends of the top right side of the first side cover (5) are respectively fixed with a first fixing plate (28), and the two ends of the top left side of the second side cover (15) are respectively fixed with a second fixing plate (29). A locking rod (30) is provided on the right side of the second fixing plate (29), and a locking ring (27) is provided on the left side of the locking rod (30). The left side of the locking rod (30) passes through the interior of the second fixing plate (29) and the first fixing plate (28). The locking rod (30) is provided with an external thread, and the locking ring (27) is rotatably connected to the outside of the locking rod (30).

7. The anti-backflow saliva collection mechanism for a dental treatment machine according to claim 1, characterized in that: The base (2) has four corners at the bottom of each of the four corners ...

Images