Dental handpiece cleaning device capable of treating aerosol

Abstract

The invention discloses a dental handpiece cleaning device capable of treating aerosol, and relates to the technical field of medical instruments, the dental handpiece cleaning device comprises a sewage recovery seat and an aerosol inner cylinder fixed and communicated with the middle of the sewage recovery seat, and the top of the aerosol inner cylinder is provided with a dental handpiece connector assembly; the supporting and positioning seat is assembled on the sewage recycling seat and arranged on the outer side of the aerosol inner cylinder, and the pressing head assembly is assembled on the inner top of the top cover structure. And the aerosol processing module is assembled in the supporting and positioning seat. A plurality of dental handpieces are allowed to be positioned at the same time through an accommodating area formed by the supporting and positioning seat and the dental handpiece connector assembly, and the aerosol inner cylinder is tightly and directly connected with the dental handpiece connector assembly under the action of the pressure head assembly, so that pollution aerosol generated by high-speed cleaning is hermetically guided to the processing module at the moment of generation, and the pollution caused by high-speed cleaning is avoided. The bacteria-carrying aerosol is effectively prevented from diffusing in the air of a consulting room.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a dental handpiece cleaning device capable of handling aerosols. Background Technology

[0002] Dental handpieces are the most frequently used precision instruments in oral diagnosis and treatment that come into direct contact with the patient's oral tissues, blood, and saliva. Their internal tubing is complex. During oral surgery, the moment the high-speed turbine handpiece stops rotating, the pressure difference between the inside and outside of the handpiece is caused by the inertial rotation of the turbine. This causes viruses and bacteria in the oral cavity to be drawn back into the handpiece and the intricate tubing behind it along with saliva and blood.

[0003] To address the aforementioned issues, dental handpieces typically employ a front-mounted ejection method after use to remove contaminants generated by back suction. However, this ejects a large amount of contaminated aerosols mixed with pathogenic microorganisms (such as bacteria and viruses), blood, saliva, and tissue debris.

[0004] First, most existing cleaning equipment lacks an effective source-sealed collection mechanism, and aerosols can easily escape from the cleaning interface, directly contaminating the operator's work area, equipment surface, and even the air environment of the clinic.

[0005] Secondly, due to gaps or misalignment in the connection between the mobile phone and the suction port, the suction efficiency is low and the aerosol "escape" phenomenon is common.

[0006] Thirdly, most of the equipment can only handle simple cleaning of a single mobile phone, which is inefficient and cannot meet the needs of a large number of outpatients. Summary of the Invention

[0007] The purpose of this invention is to provide a dental handpiece cleaning device capable of handling aerosols. The device allows for the simultaneous positioning of multiple dental handpieces through the receiving area formed by the support positioning seat and the dental handpiece plug socket. Furthermore, through the action of the pressure head assembly, the aerosol inner cylinder is tightly and directly connected to the dental handpiece plug socket, so that the contaminated aerosols generated during high-speed cleaning are immediately sealed and guided to the processing module, effectively preventing the spread of bacteria-carrying aerosols in the air of the clinic and significantly reducing the risk of iatrogenic cross-infection.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a dental handpiece cleaning device capable of handling aerosols, wherein the dental handpiece includes tubing, a main body, a head, and a nozzle; the dental handpiece cleaning device includes: a wastewater collection seat; an aerosol inner cylinder fixed and connected to the middle of the wastewater collection seat; a dental handpiece plug socket is provided at the top of the aerosol inner cylinder; and a support positioning seat mounted on the wastewater collection seat and positioned outside the aerosol inner cylinder, wherein the support positioning seat and the dental handpiece plug socket together constitute a accommodating and positioning area for a plurality of dental handpieces; the support positioning seat is provided with a liftable top cover structure, and a pressure head assembly mounted inside the top of the top cover structure, wherein when the top cover structure and the support positioning seat are closed, the pressure head assembly presses against the dental handpiece; and an aerosol treatment module mounted inside the support positioning seat, wherein one end of the aerosol treatment module is connected to the aerosol inner cylinder, and the other end extends to the outside of the support positioning seat and is provided with an exhaust fan.

[0009] Preferably, the aerosol inner cylinder includes a guide cylinder, the bottom of which is connected to the wastewater recycling seat via an installation vertical pipe, and the dental handpiece plug is fixed to the top of the guide cylinder.

[0010] Preferably, the dental handpiece plug includes a frustum, on which are annularly distributed slots communicating with a flow guide tube, and a sealing ring sleeve disposed on the frustum and corresponding to each slot. The sealing ring sleeve is used to insert and seal the assembly head so that the nozzle is placed in the flow guide tube communicating with the slots.

[0011] Preferably, the support positioning seat includes a barrel body, a support platform is provided on the top of the barrel body, the cross section of the support platform is parallel to the body line, and a limiting clip is provided on the outer periphery of the support platform and corresponds to the sealing ring sleeve for limiting the corresponding body body. The outer edge of the support platform is also provided with a number of annularly distributed slots for limiting the corresponding pipeline.

[0012] Preferably, the top cover structure includes a cover body, and several multi-stage electric telescopic rods arranged in a ring are vertically installed between the cover body and the barrel body. The pressure head assembly is placed inside the top of the multi-stage electric telescopic rods and corresponds one-to-one with the sealing ring sleeve. The pressure head assembly includes several elastic pressure columns fixed in a ring at the top of the cover body. Each elastic pressure column includes a rod sleeve, and a pressure column head that can be raised and lowered is installed inside the rod sleeve. A spring connects the pressure column head and the rod sleeve. The outer ring of the top of the cover body is also provided with a positioning plug and a positioning slot opened on the outer periphery of the support platform and adapted to the positioning plug.

[0013] Preferably, the aerosol treatment module is fixed to a support ring plate on the lower part of the inner wall of the barrel. Four sets of treatment tanks are arranged in a ring on the support ring plate. Each set of treatment tanks is equipped with a treatment unit and a second connecting pipe that connects and connects the four sets of treatment tanks in series. The lower part of the first treatment tank is equipped with a suction pump that is connected to the treatment tank. The end of the suction pump is connected to an exhaust pipe through a first connecting pipe. The end of the exhaust pipe away from the first connecting pipe is connected to the lower part of the guide tube. The exhaust fan is connected to the treatment tank at the end through a third connecting pipe. When the exhaust fan and the suction pump are working, the aerosol can be discharged from the guide tube, sequentially along the exhaust pipe, the first connecting pipe, the suction pump, and through the treatment unit where the four sets of treatment tanks are located, and finally discharged by the exhaust fan.

[0014] Preferably, the lower surface of the central part of the truncated cone is further equipped with an extended baffle structure, which has a built-in conduit nozzle structure; and a liquid supply device and a drive assembly disposed on the top cover structure. When the top cover structure and the support positioning seat are closed, the liquid supply device is connected to the conduit nozzle structure, and the drive assembly is docked with the extended baffle structure. When the extended baffle structure opens the slot channel, it is used for the dental handpiece to discharge residual aerosol. When the extended baffle structure closes the slot channel, the conduit nozzle structure, under the action of the liquid supply device, fills the closed slot channel with cleaning fluid, so that the dental handpiece can continuously pump and discharge cleaning fluid to complete multiple internal cleanings.

[0015] Preferably, the conduit nozzle structure includes an outer sleeve that passes through the middle of the truncated cone and is fixed therethrough, an inner sleeve connected to the inner side of the outer sleeve to form a liquid flow channel cavity, and an end fitting pipe disposed on the outer wall of the outer sleeve and communicating with the liquid flow channel cavity. A cavity seat is also provided at the bottom of the outer sleeve. A ring of blocks, each corresponding to a slot, is slidably mounted on the lower surface of the truncated cone. A nozzle plate is provided at the top of each block, and the nozzle plate communicates with the cavity seat via a flexible hose. A second rack is also provided at the bottom of each block. The extended baffle structure includes a connecting seat fixed to the bottom of the cavity seat, and a support frame fixed to the bottom of the connecting seat. The outer end of the support frame... The device is equipped with a second gear that meshes with the second rack; and a central rod that is rotatably mounted to the inner sleeve. The top of the central rod has a plug-in port, and its bottom passes through the cavity seat and the connecting seat and is fixed with a connecting shaft. The connecting shaft is equipped with an internal gear ring that meshes with several second gears through a transmission frame. The drive assembly includes an electric push rod fixed to the cover. The actuating end of the electric push rod is connected to an end block, and a first rack is connected to the end block. The middle of the cover is provided with an end seat, and a rotating shaft is rotatably mounted to the end seat. The bottom of the rotating shaft is provided with a plug-in end that plugs into the plug-in port, and its top is connected to a first gear that meshes with the first rack.

[0016] Preferably, the liquid supply device includes a liquid storage tank, a pump body communicating with the liquid storage tank on one side, and an inlet pipe connected to the pump body. The end of the inlet pipe away from the pump body is connected to a docking pipe mounted on the cover. The docking pipe can be connected to the end docking pipe. When the pump body is working, it can deliver cleaning fluid to the liquid flow channel cavity and the conduit nozzle structure. It also includes a control panel set on the cover. A contact switch is set on the back of the control panel. When the end block moves to the position of the control panel and contacts the contact switch, the extended baffle structure is used to close the slot channel. The contact switch can be used as a trigger signal for the pump body to work.

[0017] Preferably, the support platform is provided with a rotatable mounting ring and a second cleaning strip arranged in a ring with the mounting ring. The second cleaning strip is placed on the lower surface of the body. The mounting ring extends vertically with a connecting sleeve. A vertical rod is vertically connected to the bottom of the connecting sleeve. An extension rod penetrating the bottom of the guide tube is connected to the bottom of the connecting shaft. The bottom of the vertical rod is connected to the bottom of the extension rod through a horizontally arranged connecting rod. The support platform is also provided with a through groove near the mounting ring and a collection hood located below the support platform for receiving waste liquid. The collection hood is connected to the wastewater recovery seat at the bottom through several conduit bodies. The top of the cover body is provided with a turntable that can be limited to rotate. Several first cleaning strips are arranged in a ring at the bottom of the turntable. When the cover body is closed, the first cleaning strips can contact and wrap around the upper part of the body body. A circular cavity is provided at the top of the turntable. A solenoid valve is provided at the bottom of the liquid storage tank above the circular cavity. When the solenoid valve is working, cleaning liquid can be added to the liquid storage tank. Several liquid outlet holes are provided on the turntable located at the liquid storage tank.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention allows for the simultaneous positioning of multiple dental handpieces through the receiving area formed by the support positioning seat and the dental handpiece plug socket, enabling standardized and batch cleaning. Secondly, through the action of the pressure head assembly, the handpiece is automatically pressed tightly at the handpiece head when the cover is closed, ensuring a stable and well-sealed connection between the handpiece interface and the plug socket during the cleaning process, preventing liquid or aerosol leakage, and avoiding displacement or damage to the handpiece due to vibration. Furthermore, the aerosol inner cylinder is directly connected to the dental handpiece plug socket, so that the contaminating aerosol generated during high-speed cleaning is immediately sealed and guided to the processing module, effectively preventing the spread of bacteria-carrying aerosols in the clinic air and significantly reducing the risk of iatrogenic cross-infection.

[0020] 2. As another embodiment of the present invention, the aerosol treatment module can achieve multi-stage purification (such as filtration, ultraviolet disinfection, chemical neutralization, etc.) through a multi-stage “series” design, ensuring that the discharged gas meets safety and environmental protection standards. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure in the pre-operation state of the present invention;

[0022] Figure 2 This is a schematic diagram of the pre-assembly structure of the dental handpiece, support positioning seat, and dental handpiece plug socket of the present invention.

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure in the pre-operation state of the present invention;

[0025] Figure 5 for Figure 4 A schematic diagram of the side view structure;

[0026] Figure 6 for Figure 4 A schematic diagram of the rear view structure;

[0027] Figure 7 This is a schematic diagram of the internal structure of the present invention cut along section AA;

[0028] Figure 8 This is a schematic diagram of the internal structure of the present invention cut along BB.

[0029] Figure 9 for Figure 8 A magnified structural diagram at point C;

[0030] Figure 10 for Figure 7 A partially enlarged schematic diagram showing the connection between the liquid supply device and the conduit nozzle structure;

[0031] Figure 11 This is a schematic diagram of the disassembled structure of the frustum and extended baffle of the present invention;

[0032] Figure 12 This is an enlarged schematic diagram of the top cover structure of the present invention;

[0033] Figure 13 This is a partially enlarged schematic diagram of the assembled state of the frustum and extended baffle structure of the present invention;

[0034] Figure 14 This is a schematic diagram of the extended baffle structure of the present invention;

[0035] Figure 15 This is a schematic diagram of the frustum structure of the present invention.

[0036] In the diagram: 111, cover; 112, electric push rod; 113, liquid storage tank; 114, control panel; 1141, contact switch; 115, end block; 116, first rack; 117, first gear; 1171, rotating shaft; 1172, plug-in end; 1173, end seat; 119, positioning plug; 120, turntable; 121, first cleaning strip; 123, liquid outlet.

[0037] 130. Connecting shaft; 131. Transmission frame; 132. Internal gear ring; 134. Support frame; 135. Second gear; 136. Second rack; 137. Stop block; 138. Flexible hose;

[0038] 211. Multi-stage electric telescopic pole;

[0039] 311. Barrel body; 312. Exhaust fan;

[0040] 411. Support platform; 412. Positioning slot; 413. Limiting clip; 414. Slot; 415. Through slot;

[0041] 511. Frustum; 512. Sealing ring; 513. Groove;

[0042] 611. Second cleaning strip; 612. Mounting ring;

[0043] 711. Outer sleeve; 712. Plug-in port; 713. End connector; 714. Center rod; 715. Inner sleeve; 716. Cavity seat;

[0044] 811. Tube body; 812. Main body of the machine; 813. Head of the machine; 814. Nozzle;

[0045] 911. Flow guide tube; 912. Wastewater recovery seat; 913. Installation riser; 914. Exhaust pipe; 916. First connecting pipe; 917. Suction pump; 918. Treatment tank; 9181. Second connecting pipe; 9182. Third connecting pipe; 9183. Support ring plate; 919. Treatment unit; 920. Flow hood; 921. Connecting sleeve; 922. Vertical rod; 923. Connecting rod; 924. Extension rod; 925. Conduit body;

[0046] 1011. Column head; 1012. Rod sleeve; 1013. Spring;

[0047] 1201. Inlet pipe; 1202. Pump body; 1203. Connecting pipe; 1204. Solenoid valve; 1205. Storage tank;

[0048] 1301, Motor; 1302, Third Gear; 1303, External Gear Ring. Detailed Implementation

[0049] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. The various embodiments of this invention are described in detail below with reference to the accompanying drawings.

[0050] Example 1

[0051] Please see Figures 1 to 15 The present invention preferably provides the following technical solution: a dental handpiece cleaning device capable of handling aerosols, the dental handpiece including a pipeline 811, a body 812, a head 813, and a nozzle 814; the dental handpiece cleaning device including: a wastewater collection seat 912; an aerosol inner cylinder fixed and connected to the middle of the wastewater collection seat 912; a dental handpiece plug socket provided at the top of the aerosol inner cylinder; and a support positioning seat mounted on the wastewater collection seat 912 and placed outside the aerosol inner cylinder, the support positioning seat and the dental handpiece plug socket together forming a accommodating and positioning area for several dental handpieces; the support positioning seat is provided with a liftable top cover structure, and a pressure head assembly mounted inside the top of the top cover structure, the pressure head assembly pressing against the dental handpiece when the top cover structure and the support positioning seat are closed; and an aerosol treatment module mounted inside the support positioning seat, one end of the aerosol treatment module being connected to the aerosol inner cylinder, and the other end extending to the outside of the support positioning seat and provided with an exhaust fan 312.

[0052] In this application, such as Figure 1 , 2 As shown, due to the shape of the dental handpiece itself, it mainly includes a tube 811, a body 812, a head 813, and a nozzle 814.

[0053] First, the receiving area formed by the support positioning seat and the dental handpiece plug socket, such as Figure 2 As shown, it allows for the simultaneous positioning of multiple dental handpieces, enabling standardized and batch cleaning and reducing the time and error associated with manual operation one by one.

[0054] Secondly, the support positioning base provides external mechanical support for the mobile phone. The combined pressing action with the top cover structure disperses the stress that may be generated by the internal water flow or airflow. Furthermore, through the action of the pressure head assembly, it automatically presses the part of the head 813 where the mobile phone is located when the cover is closed, ensuring that the connection between the mobile phone interface and the plug socket is stable and well sealed during the cleaning process, preventing liquid or aerosol leakage, and avoiding the mobile phone from shifting or being damaged due to vibration.

[0055] By directly connecting the aerosol inner cylinder to the dental handpiece plug, the contaminated aerosol generated during high-speed cleaning is immediately sealed and guided to the processing module, effectively preventing the spread of bacteria-carrying aerosols in the air of the clinic and significantly reducing the risk of iatrogenic cross-infection.

[0056] like Figure 7 , 8 As shown, the aerosol treatment module can achieve multi-stage purification such as filtration, ultraviolet disinfection, and chemical neutralization, ensuring that the exhaust gas can be connected to an external system or directly discharged through the exhaust fan 312 interface, meeting safety and environmental protection standards.

[0057] Furthermore, the aerosol inner cylinder includes a guide tube 911, the bottom of which is connected to the wastewater recycling seat 912 via an installation vertical pipe 913, and the dental handpiece plug is fixed to the top of the guide tube 911.

[0058] Furthermore, the dental handpiece connector includes a frustum 511, on which are annularly distributed slots 513 communicating with the guide tube 911, and a sealing ring 512 disposed on the frustum 511 and corresponding to the slots 513. The sealing ring 512 is used to insert and seal the assembly head 813 so that the nozzle 814 is placed in the guide tube 911 communicating with the slots 513.

[0059] like Figure 2 , 7 As shown in Figure 8, the design of the direct connection between the guide tube 911 and the dental handpiece plug is preferred. The sealing ring 512 is made of rubber. When the dental handpiece head 813 is inserted into the sealing ring 512, under the action of the pressure head assembly, the sealing ring 512 can be sealed and assembled with the connection position of the head 813 due to the material setting of the sealing ring 512. This makes the head 813, the sealing ring 512, the slot 513 and the guide tube 911 form a sealed guiding channel, effectively preventing the spread of bacteria-carrying aerosols in the air of the clinic.

[0060] Furthermore, the support positioning seat includes a barrel body 311, a support platform 411 is provided on the top of the barrel body 311, the cross section of the support platform 411 is parallel to the body body 812, and a limiting card 413 is provided on the outer periphery of the support platform 411 and corresponds one-to-one with the sealing ring 512 to limit the corresponding body body 812. The outer edge of the support platform 411 is also provided with several annularly distributed slots 414 for limiting the corresponding pipeline 811.

[0061] By further configuring the support positioning seat, such as Figure 2 As shown, a limiting clip 413 and a slot 414 are provided on the support platform 411 to correspond to the positioning of the dental handpiece body 812 and the tubing 811. This allows for the simultaneous positioning of multiple dental handpieces, improving work efficiency while ensuring the stability of the body during cleaning.

[0062] Furthermore, the top cover structure includes a cover body 111, and several annularly distributed multi-stage electric telescopic rods 211 are vertically installed between the cover body 111 and the barrel body 311. The pressure head assembly is placed inside the top of the multi-stage electric telescopic rods 211 and corresponds one-to-one with the sealing ring sleeve 512. The pressure head assembly includes several elastic pressure columns annularly fixed inside the top of the cover body 111. Each elastic pressure column includes a rod sleeve 1012. A liftable and movable pressure column head 1011 is installed inside the rod sleeve 1012. A spring 1013 connects the pressure column head 1011 and the rod sleeve 1012. The outer ring of the top of the cover body 111 is also provided with a positioning plug 119 and a positioning slot 412 opened on the outer periphery of the support platform 411 and adapted to the positioning plug 119.

[0063] like Figure 2 , 8 As shown in Figures 9 and 12, when the cover 111 and the support platform 411 are closed, a number of elastic pressure columns act on the area of ​​the sealing ring 512. When a dental handpiece is present, the pressure column head 1011 presses against the top of the handpiece head 813 and compresses the spring 1013 upward. In the area without a dental handpiece, the pressure column head 1011 moves downward into the sealing ring 512 and extends into the slot 513 to block the channel where no dental handpiece is inserted. Preferably, the outer wall of the pressure column head 1011 is provided with a sealing sleeve.

[0064] Example 2

[0065] In another embodiment of the present invention, the aerosol treatment module is fixed to a support ring plate 9183 at the lower part of the inner wall of the barrel 311. Four sets of treatment tanks 918 are arranged in a ring on the support ring plate 9183. Each set of treatment tanks 918 is provided with a treatment unit 919 and a second connecting pipe 9181 connecting and connecting the four sets of treatment tanks 918 in series. A suction pump 917 communicating with the treatment tank 918 is provided at the lower part of the first treatment tank 918. The end of the suction pump 917 is connected to the first connecting pipe 916. An exhaust pipe 914 is provided, and the end of the exhaust pipe 914 away from the first connecting pipe 916 is connected to the lower part of the guide tube 911. The exhaust fan 312 is connected to the end treatment tank 918 through the third connecting pipe 9182. When the exhaust fan 312 and the suction pump 917 are working, the aerosol can be discharged from the guide tube 911 in sequence along the exhaust pipe 914, the first connecting pipe 916, the suction pump 917 and through the treatment unit 919 where the four sets of treatment tanks 918 are located, and finally discharged by the exhaust fan 312.

[0066] In this embodiment, a preferred aerosol treatment module is provided, which is preferably in four groups, such as... Figure 3 , 7As shown in Figure 8, since the four sets of processing tanks 918 are connected in series through the second connecting pipe 9181, each processing unit 919 can be connected in series to the processing path. Specifically, through the combined action of the exhaust fan 312 and the suction pump 917, it is ensured that the aerosol containing pathogens is captured quickly and efficiently and introduced into the aerosol processing module, reducing the risk of escape or retention.

[0067] When the exhaust fan 312 and the suction pump 917 are working, the aerosol can be discharged from the guide tube 911 and sequentially enter the first treatment tank 918 along the exhaust pipe 914 and the first connecting pipe 916. Subsequently, the aerosol is forced to flow sequentially through multiple treatment tanks 918 units connected in series. Preferably, each treatment tank 918 is equipped with a treatment unit 919 with different functions. For example, the treatment units 919 from the first end to the last end are as follows: High-efficiency particulate filter (HEPA): removes micron- and submicron-sized pathogen carriers; activated carbon adsorption: effectively adsorbs and removes disinfectant volatile gases, odor molecules and some organic chemical pollutants; ultraviolet photocatalysis (UVC / photocatalyst): destroys the DNA / RNA of microorganisms to achieve inactivation of gaseous microorganisms; chemical neutralization layer: neutralizes possible acidic or corrosive components with specific reagents such as alkaline substances.

[0068] This "serialized assembly line" design ensures that each stage of treatment targets specific pollutants, and that the treated gas must meet the standards of the previous stage before entering the next stage. This achieves purification efficiency and reliability far exceeding that of single-stage filtration, ensuring that the cleanliness of the gas finally discharged from the exhaust fan 312 meets the standards.

[0069] Example 3

[0070] In another embodiment of the present invention, the lower surface of the middle part of the frustum 511 is also equipped with an extended baffle structure, which has a built-in conduit nozzle structure; and a liquid supply device and a drive assembly provided on the top cover structure. When the top cover structure and the support positioning seat are closed, the liquid supply device is connected to the conduit nozzle structure, and the drive assembly is docked with the extended baffle structure. When the extended baffle structure opens the slot 513 channel, it is used to discharge residual aerosols from the dental handpiece. When the extended baffle structure closes the slot 513 channel, the conduit nozzle structure is filled with cleaning fluid under the action of the liquid supply device, so that the dental handpiece can continuously pump and discharge cleaning fluid to complete multiple internal cleanings.

[0071] In this embodiment, based on embodiments 1 and 2, the internal precision pipelines, such as water inlet and air return pipelines, are subjected to irrigation to remove blood, tissue fluid, and microorganisms that are prone to remain.

[0072] Aerosol emission pretreatment: such as Figure 4 , 7As shown in Figures 8, 9, and 10, after the cover is closed, the baffle 137 is placed on the inner side of the bottom of the frustum 511, corresponding to the opening of the slot 513 channel. In this state, any residual contaminating aerosols or liquids in the mobile phone pipeline can be discharged to the aerosol treatment module to complete the pretreatment.

[0073] Sealed filling and dynamic cleaning: such as Figure 9 and 10 As shown, because the extended baffle structure has a built-in conduit nozzle structure, and the top cover structure is equipped with a liquid supply device and a drive assembly, when the top cover structure and the support positioning seat are closed, the liquid supply device connects with the conduit nozzle structure, and the drive assembly connects with the extended baffle structure. All of this is triggered by the "closing" action, which greatly simplifies operation and eliminates manual errors. When the extended baffle structure blocks the channel 513, the conduit nozzle structure operates, causing liquid to fill the channel 513 and act on the nozzle 814 of the dental handpiece. This blocking action is repeated, and the suction function of the dental handpiece itself or external negative pressure is controlled to repeatedly pump out the cleaning fluid in the tubing. This effectively removes contaminants adhering to the tubing wall, and the multiple actions ensure thorough cleaning.

[0074] Furthermore, the conduit nozzle structure includes an outer sleeve 711 that passes through the middle of the frustum 511 and is fixed therein, an inner sleeve 715 connected to the inner side of the outer sleeve 711 to form a liquid flow channel cavity, and an end fitting pipe 713 disposed on the outer wall of the outer sleeve 711 and communicating with the liquid flow channel cavity. A cavity seat 716 is also provided at the bottom of the outer sleeve 711. A ring of blocks 137 corresponding one-to-one with the slots 513 are slidably installed on the lower surface of the frustum 511. A nozzle plate is provided on the top of each block 137, and the nozzle plate is connected to the cavity seat 716 through a hose 138. A second rack 136 is also provided at the bottom of each block 137. The extended baffle structure includes a connecting seat 139 fixed to the bottom of the cavity seat 716, and a support frame 134 fixed to the bottom of the connecting seat 139. The outer ends of the support frame 134 are respectively provided with parts that engage with the second rack 136. The transmission includes a second gear 135; and a central rod 714 rotatably mounted to the inner sleeve 715. The top of the central rod 714 is provided with a plug-in port 712, and its bottom passes through the cavity seat 716 and the connecting seat 139 and is fixed with a connecting shaft 130. The connecting shaft 130 is mounted with an internal gear ring 132 that meshes with several second gears 135 via a transmission frame 131. The drive assembly includes an electric push rod 112 fixed on the cover 111. The actuating end of the electric push rod 112 is connected to an end block 115, and a first rack 116 connected to the end block 115. An end seat 1173 is provided in the middle of the cover 111, and a rotating shaft 1171 rotatably mounted to the end seat 1173. The bottom of the rotating shaft 1171 is provided with a plug-in end 1172 that plugs into the plug-in port 712, and its top is connected to a first gear 117 that meshes with the first rack 116.

[0075] Furthermore, the liquid supply device includes a liquid storage tank 113, a pump body 1202 communicating with the liquid storage tank 113 on one side, and an inlet pipe 1201 connected to the pump body 1202. The end of the inlet pipe 1201 away from the pump body 1202 is connected to a docking pipe 1203 mounted on the cover 111. The docking pipe 1203 can be docked with the end docking pipe 713. When the pump body 1202 is working, it can deliver cleaning fluid to the liquid flow channel cavity and the conduit nozzle structure. It also includes a control panel 114 set on the cover 111. A contact switch 1141 is set on the back of the control panel 114. When the end block 115 moves to the position of the control panel 114 and contacts the contact switch 1141, the extended baffle structure is used to close the channel of the slot 513. The contact switch 1141 can be used as a trigger signal for the operation of the pump body 1202.

[0076] Firstly, through the structural design of the conduit nozzle structure and liquid supply device, the extended baffle structure and drive assembly, when the top cover structure and the support positioning seat are closed, such as... Figure 7 , 8 As shown in Figures 9 and 10, the docking tube 1203 and the end docking tube 713 are tightly connected vertically, so that the liquid supply device is connected to the conduit nozzle structure. The corresponding insertion end 1172 below the rotating shaft 1171 is adapted to the insertion port 712 for docking of the drive component and the expansion baffle structure.

[0077] And through the role of the driving components, such as Figure 3 , 9 As shown in Figures 11 and 14, when the electric push rod 112 drives the first rack 116 to move closer to the control panel 114, the meshing action of the first rack 116 and the first gear 117 can drive the insertion port 712 of the rotating shaft 1171 to rotate, which in turn drives the connecting shaft 130 at the bottom of the central rod 714 to rotate. Figure 13 , 14As shown, the internal gear ring 132 on the transmission frame 131 rotates, causing the second gear 135 meshing with the internal gear ring 132 to rotate. Under the meshing action of the second gear 135 and the second rack 136, the several ring-shaped blocks 137 are further pushed outward to expand and block the slot 513, so that the expansion baffle structure closes the channel of the slot 513, forming a sealed cleaning chamber. When the block 137 completely seals the bottom of the slot 513, the end block 115 where the electric push rod 112 is located reaches the control panel 114 and contacts the contact switch 1141, which will trigger the action and drive the pump body 1202 to work, so that the cleaning liquid in the storage tank 113 flows through the docking tube 1203 and the end docking tube 713, and the "liquid flow channel cavity" formed by the outer sleeve 711 and the inner sleeve 715 in sequence. The solution is then distributed to each baffle 137 via the cavity seat 716 and hose 138, and sprayed out by the nozzle plate on it, acting on the corresponding sealed slot 513. In the slot 513 where a dental handpiece is used, the dental handpiece can repeatedly pump out the cleaning fluid in the pipeline through its own suction function or external negative pressure to achieve multiple cleaning processes. In the slot 513 where no dental handpiece is used, the diameter of the slot 513 and the bottom of the pressure column head 1011 can be cleaned. The waste liquid after cleaning enters the sewage recovery seat 912 through the installation vertical pipe 913 for recycling. Preferably, the installation vertical pipe 913 is equipped with a one-way valve for the waste liquid to enter the sewage recovery seat 912 in one direction. When the expansion baffle structure returns to its original position, the end block 115 disengages from the contact switch 1141, and the pump body 1202 stops working.

[0078] Example 4

[0079] In another embodiment of the present invention, a rotatable mounting ring 612 is provided on the support platform 411, and a second cleaning strip 611 arranged in a ring array with the mounting ring 612. The second cleaning strip 611 is placed on the lower surface of the body 812. A connecting sleeve 921 extends vertically from the mounting ring 612. A vertical rod 922 is vertically connected to the bottom of the connecting sleeve 921. An extension rod 924 penetrating the bottom of the guide tube 911 is connected to the bottom of the connecting shaft 130. The bottom of the vertical rod 922 is connected to the bottom of the extension rod 924 through a horizontally arranged connecting rod 923. A through groove 415 is also provided on the support platform 411 near the mounting ring 612, and a groove is provided below the support platform 411 for... A collection hood 920 for receiving waste liquid is connected to a wastewater recovery seat 912 at the bottom via several conduit bodies 925. A turntable 120 with a limited rotation is provided at the top of the cover 111. Several first cleaning strips 121 are arranged in a ring at the bottom of the turntable 120. When the cover 111 is closed, the first cleaning strips 121 can contact and wrap the upper part of the body 812. A circular cavity is opened at the top of the turntable 120. A solenoid valve 1204 is provided at the bottom of the liquid storage tank 113 above the circular cavity. When the solenoid valve 1204 is working, cleaning liquid can be added to the liquid storage tank 1205. Several liquid outlet holes 123 are opened on the turntable 120 located at the position of the liquid storage tank 1205.

[0080] In this embodiment, based on embodiment 3, such as Figure 2 , 7 As shown, further additions of an extension rod 924, a connecting rod 923, and a vertical rod 922 allow the dental handpiece to rotate back and forth during repeated pumping and unloading of the cleaning tubing. The extension rod 924, connected by the connecting rod 923, rotates the connecting sleeve 921 containing the vertical rod 922, which in turn rotates the second cleaning strip 611 containing the mounting ring 612. This achieves wiping and cleaning of the lower surface of the main body 812. The control panel 114, where the top cover structure is located, is as follows: Figure 2 , 9 As shown in Figures 10 and 12, the motor 1301 and solenoid valve 1204 can be controlled via the control panel 114. When the motor 1301 starts, the meshing of the third gear 1302 and the external gear ring 1303 drives the turntable 120 to rotate. The first cleaning strips 121 distributed in a ring on the turntable wipe the upper part of the machine body 812. When the solenoid valve 1204 is working, cleaning fluid can be injected into the storage tank 1205. The cleaning fluid is leached out from the outlet hole 123 at the bottom of the storage tank 1205 and acts between the first cleaning strip 121 and the second cleaning strip 611 to improve the cleaning quality. The waste liquid is collected by the collection hood 920 and guided by the conduit body 925 to the wastewater recovery seat 912 at the bottom for waste liquid recovery.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Detachable installation can take many forms, such as through a combination of plug-in and snap-fit ​​connections, or through bolted connections, etc.

[0082] The above embodiments, which describe the specific features of the present invention, are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made to the present invention by those skilled in the art based on the above description of the invention shall fall within the scope of protection of the present invention.

Claims

1. A dental handpiece cleaning device capable of handling aerosol, the dental handpiece comprising a pipeline (811), a machine body (812), a handpiece (813) and a spray needle nozzle (814), characterized in that, The dental handpiece cleaning device comprises a sewage recovery seat (912), an aerosol inner cylinder fixed in the middle of the sewage recovery seat (912) and in communication with the sewage recovery seat (912), and a dental handpiece plug seat arranged at the top of the aerosol inner cylinder; and a supporting and positioning seat assembled on the sewage recovery seat (912) and arranged outside the aerosol inner cylinder, which, together with the dental handpiece plug seat, forms a positioning area for containing a plurality of dental handpieces; a liftable top cover structure arranged on the supporting and positioning seat, and a pressure head assembly assembled in the inner top of the top cover structure, wherein when the top cover structure and the supporting and positioning seat are closed, the pressure head assembly is buckled on the dental handpiece; and an aerosol treatment module assembled in the supporting and positioning seat, one end of the aerosol treatment module being in communication with the aerosol inner cylinder and the other end of the aerosol treatment module extending to the outside of the supporting and positioning seat and being provided with an exhaust fan (312).

2. An aerosol dental handpiece cleaning device as claimed in claim 1, wherein: The aerosol inner cylinder comprises a flow guide cylinder (911), the bottom of the flow guide cylinder (911) being in communication with the sewage recovery seat (912) through a mounting vertical pipe (913), and the dental handpiece plug seat being fixed at the top of the flow guide cylinder (911).

3. An aerosol dental handpiece cleaning device as claimed in claim 2, wherein: The dental handpiece plug seat comprises a circular table (511), a plurality of slot holes (513) arranged in a ring shape and in communication with the flow guide cylinder (911) being arranged on the circular table (511), and a sealing ring sleeve (512) arranged on the circular table (511) and corresponding to the slot holes (513), the sealing ring sleeve (512) being used for inserting and sealingly assembling the handpiece (813) so that the spray needle nozzle (814) is arranged in the flow guide cylinder (911) in communication with the slot holes (513).

4. An aerosol dental handpiece cleaning device as claimed in claim 3, wherein: The supporting and positioning seat comprises a barrel (311), a supporting table (411) arranged at the top of the barrel (311), the cross section of the supporting table (411) being parallel to the line of the body body (812), and a limiting clamp (413) arranged on the outer periphery of the supporting table (411) and corresponding to the sealing ring sleeve (512), which is used for limiting the corresponding body body (812), and a plurality of annularly distributed clamping grooves (414) are arranged on the outer edge of the supporting table (411), which are used for limiting the corresponding pipelines (811).

5. An aerosol dental handpiece cleaning device as defined in claim 1, wherein: The top cover structure comprises a cover body (111), a plurality of annularly distributed multi-stage electric telescopic rods (211) being vertically mounted between the cover body (111) and the barrel (311), the pressure head assembly being arranged in the inner top of the multi-stage electric telescopic rods (211) and corresponding to the sealing ring sleeve (512), and the pressure head assembly comprising a plurality of elastic pressure columns fixed in a ring shape on the inner top of the cover body (111), each of the elastic pressure columns comprising a rod sleeve (1012), a pressure column head (1011) being liftable and movable being arranged in the inner part of the rod sleeve (1012), and a spring (1013) being connected between the pressure column head (1011) and the rod sleeve (1012); an outer ring part of the inner top of the cover body (111) is further provided with a positioning plug (119), and a positioning slot (412) is arranged on the outer periphery of the supporting table (411) and is adapted to the positioning plug (119).

6. An aerosol dental handpiece cleaning device as defined in claim 1, wherein: The aerosol treatment module is fixed on a support ring plate (9183) at the lower part of the inner wall of the barrel (311), and four groups of treatment tanks (918) are annularly distributed on the support ring plate (9183); Each group of treatment tanks (918) is provided with a treatment unit (919), and a second connecting pipe (9181) is connected and connected in series between the four groups of treatment tanks (918), and the lower part of the first treatment tank (918) is provided with a suction pump (917) connected with the treatment tank (918), and the end of the suction pump (917) is connected with an exhaust pipe (914) through a first connecting pipe (916), and the end of the exhaust pipe (914) is connected with the lower part of the flow guide cylinder (911), and the exhaust fan (312) is connected with the last treatment tank (918) through a third connecting pipe (9182). When the exhaust fan (312) and the suction pump (917) are working, the aerosol can be discharged from the flow guide cylinder (911) and sequentially pass through the exhaust pipe (914), the first connecting pipe (916), the suction pump (917) and the treatment unit (919) of the four groups of treatment tanks (918) and finally be discharged by the exhaust fan (312).

7. An aerosol dental handpiece cleaning device as defined in claim 4, wherein: The lower surface of the circular table (511) is further provided with an expansion baffle structure, the expansion baffle structure is internally provided with a pipe nozzle structure; and a liquid supply device and a driving assembly are arranged on the top cover structure, when the top cover structure and the support positioning seat are combined, the liquid supply device and the pipe nozzle structure are communicated, and the driving assembly is connected with the expansion baffle structure, when the expansion baffle structure opens the slot hole (513) channel, the residual aerosol of the dental handpiece is discharged, and when the expansion baffle structure closes the slot hole (513) channel, the pipe nozzle structure is filled with cleaning liquid under the action of the liquid supply device, and the dental handpiece continuously discharges the cleaning liquid to complete internal cleaning multiple times.

8. An aerosol dental handpiece cleaning device as claimed in claim 7, wherein: The pipe nozzle structure comprises an outer sleeve (711) penetrating the middle part of the circular table (511) and being fixed, an inner sleeve (715) connected with the inner side of the outer sleeve (711), which can form a liquid flow channel cavity, and a tip butt joint pipe (713) arranged on the outer wall of the outer sleeve (711) and communicated with the liquid flow channel cavity, and the bottom of the outer sleeve (711) is further provided with a cavity seat (716); The lower surface of the circular table (511) is slidably provided with annularly distributed stop blocks (137) corresponding to the slot holes (513), each stop block (137) is provided with a nozzle plate at the top, the nozzle plate is communicated with the cavity seat (716) through a hose (138), and each stop block (137) is further provided with a second rack (136) at the bottom. The expansion baffle structure includes a connecting seat (139) fixed at the bottom of the cavity seat (716), and a support frame (134) fixed at the bottom of the connecting seat (139), wherein the outer end of the support frame (134) is respectively provided with a second gear (135) in meshing transmission with a second rack (136); and a center rod (714) is rotatably installed with the inner sleeve (715), wherein the top of the center rod (714) is provided with a plug-in port (712), the bottom of the center rod (714) penetrates the cavity seat (716), the connecting seat (139) and is fixed with a connecting shaft (130), and the connecting shaft (130) is installed with an inner tooth ring (132) in meshing transmission with a plurality of second gears (135) through a transmission frame (131); The driving assembly includes an electric push rod (112) fixed on the cover body (111), wherein the execution end of the electric push rod (112) is connected with an end block (115), and the first rack (116) is connected with the end block (115); the middle of the cover body (111) is provided with an end seat (1173), and the rotating shaft (1171) is rotatably installed with the end seat (1173); the bottom of the rotating shaft (1171) is provided with a plug-in end head (1172) plugged with the plug-in port (712), and the top of the rotating shaft (1171) is connected with the first gear (117) in meshing transmission with the first rack (116).

9. An aerosol dental handpiece cleaning device as defined in claim 7, wherein: The liquid supply device includes a liquid storage tank (113), wherein one side of the liquid storage tank (113) is provided with a pump body (1202) in communication with the liquid storage tank (113), and the pump body (1202) is connected with a liquid inlet pipe (1201); the end of the liquid inlet pipe (1201) away from the pump body (1202) is connected with a butt joint pipe (1203) assembled on the cover body (111); the butt joint pipe (1203) can be butt jointed with the end head butt joint pipe (713); when the pump body (1202) works, the cleaning liquid can be transported to the liquid flow channel cavity and the catheter nozzle structure; the control panel (114) provided on the cover body (111) is provided with a contact switch (1141) on the back; when the end block (115) moves to the position of the control panel (114) and contacts with the contact switch (1141), the expansion baffle structure is used to close the channel of the slot (513), and the contact switch (1141) can be used as a trigger signal of the working of the pump body (1202).

10. An aerosol dental handpiece cleaning device as defined in claim 8, wherein: The support table (411) is provided with a rotatable mounting ring (612) and a second cleaning strip (611) arranged in an annular array with the mounting ring (612); the second cleaning strip (611) is arranged on the lower surface of the machine body (812); the mounting ring (612) extends in a vertical direction and is provided with a connecting sleeve (921); the bottom of the connecting sleeve (921) is vertically connected with a vertical rod (922); the bottom of the connecting shaft (130) is connected with an extension rod (924) penetrating the bottom of the flow guide cylinder (911); the bottom of the vertical rod (922) is connected with the bottom of the extension rod (924) through a transversely arranged connecting rod (923). The support table (411) is also provided with a through slot (415) near the installation ring (612), and a flow collecting cover (920) is arranged below the support table (411) and is used for receiving waste liquid, the flow collecting cover (920) is communicated with a sewage recovery seat (912) at the bottom through a plurality of pipe bodies (925); The inner top of the cover body (111) is provided with a rotary disc (120) capable of being rotationally limited, the bottom of the rotary disc (120) is annularly provided with a plurality of first cleaning strips (121), the first cleaning strips (121) can contact and wrap the upper part of the machine body (812) when the cover body (111) is closed, and the top of the rotary disc (120) is provided with a circular cavity, the bottom of a liquid storage tank (113) above the circular cavity is provided with an electromagnetic valve (1204), when the electromagnetic valve (1204) works, cleaning liquid can be added into a liquid storage groove (1205), a plurality of liquid outlet holes (123) are formed in the rotary disc (120) arranged at the position of the liquid storage groove (1205).

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