Suction blowdown device
The design of the sewage discharge assembly, which combines bevel gears and rotating plates, along with the piston rod and sliding plate, solves the problem of sewage backflow in the suction sewage discharge device, achieving efficient cleaning and infection prevention, and adapting to the oral treatment needs of different patients.
Patent Information
- Application Number
- CN202422636777.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing suction and sewage discharge devices are prone to sewage backflow during the suction process, which increases the risk of oral wound infection, and the cleaning efficiency is low.
The sewage discharge assembly, which combines a bevel gear and a rotating plate, uses a drive motor to rotate the bevel gear, thereby closing and opening the suction pipe. Combined with the reciprocating motion of the piston rod and the sliding plate, it prevents sewage backflow. Furthermore, the servo motor adjustment assembly can accommodate patients of different heights.
It effectively prevents sewage backflow, improves cleaning efficiency, maintains dental hygiene, reduces the risk of oral infections, and adapts to the treatment needs of different patients.
Smart Images

Figure CN223475884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oral treatment technology, and in particular to a suction and drainage device. Background Technology
[0002] This device is specifically designed for use during dental procedures, capable of handling both liquid and solid waste simultaneously. Its main components include a liquid guide tube, a collection mechanism, and a drive mechanism. The collection mechanism uses an L-shaped lever to move dirt from inside the inlet to the discharge outlet, thereby cleaning the inlet and facilitating the continued entry of wastewater and dirt into the inlet, thus improving the collection efficiency.
[0003] Existing suction and sewage discharge devices can cause sewage to flow back during the suction process, which can aggravate the infection of oral wounds during cavity cleaning and require repeated sewage discharge. This repeated cleaning not only reduces work efficiency but also aggravates infection. Utility Model Content
[0004] This utility model discloses a suction and sewage discharge device, which aims to solve the technical problem that some suction and sewage discharge devices cause sewage to flow back during the suction process, aggravating the infection of oral wounds. Repeated cleaning not only reduces work efficiency but also aggravates infection.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A suction and sewage discharge device includes a suction pipe, and a sewage discharge assembly is installed inside the suction pipe. The sewage discharge assembly includes a drive motor, and the power output shaft of the drive motor is connected to a fixed rod via a bearing. The bottom end of the fixed rod is movably connected to the top end of the suction pipe. A second bevel gear is fixedly connected to the outside of the fixed rod, and a first bevel gear is movably connected to the outside of the second bevel gear. The first and second bevel gears mesh with each other through a tooth groove. A rotating plate is fixedly connected to the front end of the first bevel gear, and a first rotating rod is fixedly connected to the top end of the rotating plate. A sliding seat is fixedly connected to the top end of the first rotating rod, and a movable rod is movably connected to the inner side of the sliding seat. Both ends of the movable rod are fixedly connected to fixed seats, and the bottom ends of the fixed seats are fixedly connected to movable plates.
[0007] Equipped with a suction pipe and a sewage discharge assembly, the suction and sewage discharge device operates by starting a drive motor to rotate a second bevel gear. A first bevel gear, meshing with the second bevel gear through a tooth groove, drives a rotating plate to rotate. A sliding seat fixedly connected to the front end of the rotating plate slides inside a movable rod, causing the movable plate to rotate within the suction pipe. This allows the suction pipe to open and close, effectively preventing backflow during suction and preventing further aggravation of dental wounds. The sewage can then be returned to the collection tank, effectively collecting wastewater and improving work efficiency while maintaining dental hygiene.
[0008] In a preferred embodiment, a suction pipe is fixedly connected to the front end of the suction pipe, an air pump pipe is fixedly connected to the top end of the suction pipe, and a sliding plate is movably connected inside the suction pipe. A piston rod is fixedly connected to the inner side of the sliding plate. A limiting plate is fixedly connected to the top end of the suction pipe. A through hole is opened on the inner side of the limiting plate, and the piston rod slides through the through hole. A compression spring is fixedly connected to the front end of the limiting plate. The top end of the compression spring is fixedly connected to the bottom end of the piston rod. A sludge collection box is fixedly connected to the bottom end of the suction pipe. A protective cylinder is provided on the outside of the sludge collection box, and a fixed shaft is fixedly connected to the bottom end of the protective cylinder. A support frame is fixedly connected to the bottom end of the fixed shaft.
[0009] The device is equipped with a suction pipe, an air pump pipe, a sliding plate, a piston rod, a limit plate, a compression spring, a sludge collection box, a protective cylinder, a fixed shaft, and a support frame. When the suction and discharge device is in operation, the suction head is connected to the front end of the suction pipe, and the bottom end of the air pump pipe is connected to the air pump. This allows the piston rod to reciprocate inside the suction pipe, achieving a suction effect and improving the cleaning of teeth and the oral cavity. During suction, the discharge assembly is activated to close and open the suction pipe. Simultaneously, the sliding plate reciprocates inside the suction pipe to prevent sewage from entering the air pump pipe and causing equipment damage. The sewage is then discharged into the sludge collection box.
[0010] In a preferred embodiment, the fixed shaft has an internal cavity, and an adjustment assembly is installed inside the cavity. The adjustment assembly includes a servo motor, and the power output shaft of the servo motor is connected to a rotating rod two via a bearing drive. The bottom end of the rotating rod two is movably connected to the interior of the fixed shaft. A bevel gear three is fixedly connected to the outside of the rotating rod two, and a bevel gear four is movably connected to the outside of the bevel gear three. The bevel gear four and the bevel gear three are connected by a tooth groove two. A rotating lead screw is fixedly connected to the bottom end of the bevel gear four, and a sliding rod is movably connected to the outside of the rotating lead screw. A base frame is fixedly connected to the bottom end of the sliding rod, and multiple support shafts are fixedly connected to the bottom end of the base frame. Each support shaft is fixedly connected to a fixed frame, and each fixed frame is fixedly connected to a support rod. A pulley is movably connected to the outside of the support rod.
[0011] The device is equipped with an adjustment component, base frame, support shaft, fixed frame, support rod, and pulleys. Before the suction and sewage discharge device starts working, the servo motor is activated to drive the rotating screw to move the sliding rod inside the support frame to adjust the height, effectively accommodating patients of different heights for oral treatment.
[0012] As can be seen from the above, the suction and sewage discharge device provided by this utility model effectively prevents backflow during sewage suction, which could worsen the wounds on the teeth. It can also re-enter the sewage collection tank, effectively collect sewage, improve work efficiency, and maintain the cleanliness of the teeth. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the suction pipe structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the base frame structure of this utility model.
[0016] Figure 4 This is a schematic diagram of the sewage discharge component structure of this utility model.
[0017] Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.
[0018] In the attached diagram: 1. Suction pipe; 2. Sewage suction pipe; 3. Air pump pipe; 4. Sliding plate; 5. Limiting plate; 6. Piston rod; 7. Compression spring; 8. Sewage collection tank; 9. Protective cylinder; 10. Sewage discharge assembly; 1001. Movable plate; 1002. Fixed base; 1003. Movable rod; 1004. Sliding base; 1005. Rotating rod one; 1006. Rotating plate; 1007. Bevel gear one; 1008. 1009. Bevel gear II; 1010. Drive motor; 11. Fixed rod; 12. Fixed shaft; 13. Support frame; 14. Adjustment assembly; 15. Servo motor; 16. Rotating rod II; 17. Bevel gear III; 18. Bevel gear IV; 19. Rotating screw; 1001. Sliding rod; 11. Base frame; 12. Support shaft; 13. Fixed frame; 14. Support rod; 15. Pulley. Detailed Implementation
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0020] The present invention discloses a suction and sewage discharge device, which is mainly used in scenarios where some suction and sewage discharge devices cause sewage backflow during the suction process, which aggravates the infection of oral wounds during cavity cleaning and requires sewage discharge again. This repeated cleaning not only reduces work efficiency but also aggravates infection.
[0021] Reference Figures 1-5 A suction and sewage discharge device includes a suction pipe 1. A sewage discharge assembly 10 is installed inside the suction pipe 1. The sewage discharge assembly 10 includes a drive motor 1009. The power output shaft of the drive motor 1009 is connected to a fixed rod 1010 via a bearing. The bottom end of the fixed rod 1010 is rotatably connected to the top end of the suction pipe 1. A second bevel gear 1008 is bolted to the outside of the fixed rod 1010. A first bevel gear 1007 is rotatably connected to the outside of the second bevel gear 1008. The bevel gear 1007 meshes with the bevel gear 1008 through a tooth groove. The front end of the bevel gear 1007 is bolted to a rotating plate 1006. The top end of the rotating plate 1006 is bolted to a rotating rod 1005. The top end of the rotating rod 1005 is bolted to a sliding seat 1004. The inner side of the sliding seat 1004 is slidably connected to a movable rod 1003. Both ends of the movable rod 1003 are bolted to fixed seats 1002. The bottom end of the fixed seat 1002 is bolted to a movable plate 1001.
[0022] Reference Figure 1 , Figure 2 and Figure 4 In a preferred embodiment, the front end of the suction pipe 1 is bolted to a suction pipe 2, the top end of the suction pipe 1 is bolted to an air pump pipe 3, and the inside of the suction pipe 1 is slidably connected to a sliding plate 4. The inner side of the sliding plate 4 is bolted to a piston rod 6. The top end of the inside of the suction pipe 1 is bolted to a limiting plate 5. A through hole is provided on the inner side of the limiting plate 5, through which the piston rod 6 is slidably connected. The front end of the limiting plate 5 is bolted to a compression spring 7, and the top end of the compression spring 7 is bolted to the bottom end of the piston rod 6. The bottom end of the suction pipe 1 is bolted to a sludge collection box 8, and a protective cylinder 9 is provided on the outside of the sludge collection box 8. The bottom end of the protective cylinder 9 is bolted to a fixed shaft 11, and the bottom end of the fixed shaft 11 is bolted to a support frame 12.
[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5In a preferred embodiment, the fixed shaft 11 has a cavity inside, and an adjustment assembly 13 is disposed inside the cavity. The adjustment assembly 13 includes a servo motor 1301, and the power output shaft of the servo motor 1301 is connected to a rotating rod 1302 via a bearing drive. The bottom end of the rotating rod 1302 is rotatably connected to the inside of the fixed shaft 11. The outer side of the rotating rod 1302 is bolted to a bevel gear 1303, and the outer side of the bevel gear 1303 is rotatably connected to a bevel gear 1304. 1304 and bevel gear three 1303 are connected by tooth groove two. The bottom end of bevel gear four 1304 is bolted to a rotating screw 1305. The outer side of the rotating screw 1305 is rotatably connected to a sliding rod 1306. The bottom end of the sliding rod 1306 is bolted to a base frame 14. The bottom end of the base frame 14 is bolted to a plurality of support shafts 15. The bottom end of each support shaft 15 is bolted to a fixing frame 16. The bottom end of each fixing frame 16 is bolted to a support rod 17. The outer side of the support rod 17 is rotatably connected to a pulley 18.
[0024] Working principle: When the suction and sewage discharge device is working, the drive motor 1009 is started to drive the bevel gear 1008 to rotate. The bevel gear 1007, which meshes with the bevel gear 1008 through the tooth groove, drives the rotating plate 1006 to rotate. The sliding seat 1004, which is fixedly connected to the front end of the rotating plate 1006, slides inside the movable rod 1003, causing the movable plate 1001 to rotate inside the suction pipe 1, so that the inside of the suction pipe 1 can be closed and opened.
[0025] Before the suction and drainage device starts working, due to the different heights of patients, the servo motor 1301 is started to drive the rotating screw 1305 to drive the sliding rod 1306 to adjust the height inside the support frame 12, effectively adapting to patients of different heights for oral treatment. When the suction and drainage device is working, the suction head is connected to the front end of the suction pipe 2, and the bottom end of the air pump pipe 3 is connected to the air pump, so that the piston rod 6 reciprocates inside the suction pipe 1 to achieve the suction effect and improve the cleaning effect of teeth and oral cavity. During suction, the drainage component 10 is started to close and open the suction pipe 1. At the same time, the sliding plate 4 reciprocates inside the suction pipe 1 to prevent sewage from entering the air pump pipe 3 and causing equipment damage. The sewage is then discharged into the sewage collection box 8.
[0026] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A suction and sewage discharge device, comprising a suction pipe (1), characterized in that, The suction pipe (1) is equipped with a sewage discharge assembly (10), which includes a drive motor (1009). The power output shaft of the drive motor (1009) is connected to a fixed rod (1010) via a bearing drive. The bottom end of the fixed rod (1010) is movably connected to the top end of the suction pipe (1). A bevel gear two (1008) is fixedly connected to the outside of the fixed rod (1010). A bevel gear one (1007) is movably connected to the outside of the bevel gear two (1008). The bevel gear one (1007) and the bevel gear two are connected to each other. (1008) mesh with each other through a tooth groove, and the front end of the bevel gear (1007) is fixedly connected to a rotating plate (1006), the top end of the rotating plate (1006) is fixedly connected to a rotating rod (1005), the top end of the rotating rod (1005) is fixedly connected to a sliding seat (1004), the inner side of the sliding seat (1004) is movably connected to a movable rod (1003), and both ends of the movable rod (1003) are fixedly connected to fixed seats (1002), and the bottom end of the fixed seats (1002) is fixedly connected to a movable plate (1001).
2. The suction and sewage discharge device according to claim 1, characterized in that, The front end of the suction pipe (1) is fixedly connected to a sewage suction pipe (2), the top end of the suction pipe (1) is fixedly connected to an air pump pipe (3), and the inside of the suction pipe (1) is movably connected to a sliding plate (4), and the inner side of the sliding plate (4) is fixedly connected to a piston rod (6).
3. The suction and sewage discharge device according to claim 1, characterized in that, The suction pipe (1) has a fixed connection to the inner top end of a limiting plate (5). The inner side of the limiting plate (5) has a through hole. The piston rod (6) slides through the through hole. The front end of the limiting plate (5) is fixedly connected to a compression spring (7). The top end of the compression spring (7) is fixedly connected to the bottom end of the piston rod (6).
4. The suction and sewage discharge device according to claim 3, characterized in that, The bottom end of the suction pipe (1) is fixedly connected to a sludge collection box (8), and a protective cylinder (9) is provided on the outside of the sludge collection box (8). The bottom end of the protective cylinder (9) is fixedly connected to a fixed shaft (11), and the bottom end of the fixed shaft (11) is fixedly connected to a support frame (12).
5. A suction and sewage discharge device according to claim 4, characterized in that, The fixed shaft (11) has a cavity inside, and an adjustment component (13) is provided inside the cavity. The adjustment component (13) includes a servo motor (1301), and the power output shaft of the servo motor (1301) is connected to a rotating rod (1302) through a bearing drive. The bottom end of the rotating rod (1302) is movably connected to the inside of the fixed shaft (11).
6. The suction and sewage discharge device according to claim 5, characterized in that, The outer side of the rotating rod two (1302) is fixedly connected to the bevel gear three (1303), and the outer side of the bevel gear three (1303) is movably connected to the bevel gear four (1304). The bevel gear four (1304) and the bevel gear three (1303) are connected through the tooth groove two. The bottom end of the bevel gear four (1304) is fixedly connected to the rotating screw (1305), and the outer side of the rotating screw (1305) is movably connected to the sliding rod (1306).
7. A suction and sewage discharge device according to claim 6, characterized in that, The bottom end of the sliding rod (1306) is fixedly connected to a base frame (14), the bottom end of the base frame (14) is fixedly connected to multiple support shafts (15), the bottom end of each support shaft (15) is fixedly connected to a fixing frame (16), the bottom end of each fixing frame (16) is fixedly connected to a support rod (17), and a pulley (18) is movably connected to the outside of the support rod (17).