Handle tail sleeve and ultrasonic sandblasting equipment

Abstract

This invention discloses a handle tail sleeve and an ultrasonic sandblasting device. When the ultrasonic handle or sandblasting handle is plugged into the flow guide valve, water entering through the inlet flows out through the outlet via the water flow channel, thus supplying water to both types of handles via a single handle tail sleeve. When the ultrasonic handle is connected to the handle tail sleeve, the pin can be connected to the bottom welding pin of the transducer on the ultrasonic handle, thereby supplying power to the transducer. The transducer converts electrical energy into mechanical kinetic energy to drive the scaling tip for teeth cleaning. Since the air pipe connector is fixedly installed through the through hole, it is connected to the sand delivery pipe of the sandblasting handle, thereby realizing the delivery of sand powder for teeth cleaning via sandblasting. This allows the ultrasonic handle and the sandblasting handle to share the same handle tail sleeve. When ultrasonic or sandblasting cleaning is required, only the corresponding handle needs to be replaced and connected to the handle tail sleeve, making it more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of oral medical device technology, and in particular to a handle tail sleeve and an ultrasonic sandblasting device. Background Technology

[0002] Air polishing equipment uses compressed gas to propel dental polishing powder onto the tooth surface, where it mixes with a liquid medium to clean the teeth. Ultrasonic scaling equipment uses ultrasonic waves to propel a vibrating cleaning tip deep into the mouth, loosening plaque and tartar, breaking down surface debris, while continuous rinsing with water removes tartar. The effective combination of ultrasonic and air polishing can effectively remove plaque, soft deposits, early tartar, tobacco stains, and tea stains from both above and below the gum line, effectively preventing periodontal disease and maintaining dental health.

[0003] Currently, ultrasonic cleaning equipment and sandblasting cleaning equipment are usually separate, with limited functions and each requiring a certain amount of space. When patients need ultrasonic or sandblasting treatment, it is very inconvenient for doctors to operate them. Summary of the Invention

[0004] The purpose of this invention is to provide a handle tail sleeve and an ultrasonic sandblasting device, which enables the ultrasonic handle and the sandblasting handle to share the same handle tail sleeve. When ultrasonic or sandblasting cleaning is required, it is only necessary to replace the corresponding handle and connect it to the handle tail sleeve, which is more convenient to use, reduces the number of parts in the main unit, reduces the space occupied by the main unit, and reduces manufacturing costs.

[0005] In a first aspect, the present invention provides a handle tail sleeve, comprising:

[0006] The tail sleeve housing has a first end and a second end that are opposite to each other;

[0007] A fixing block is disposed inside the tail sleeve housing and is provided with mounting holes;

[0008] A flow guide valve is fixedly installed through the mounting hole and extends toward the first end; wherein, the flow guide valve is provided with a through hole, an inlet hole and an outlet hole, the inlet hole penetrates the side of the flow guide valve facing the second end, and the outlet hole is provided at the part of the flow guide valve extending toward the first end;

[0009] A water pipe connector is inserted into the water inlet hole;

[0010] An air pipe connector is fixedly inserted into the through hole, and a water flow channel is formed between the outer peripheral wall of the air pipe connector and the inner peripheral wall of the through hole. The water inlet and the water outlet are both connected to the water flow channel.

[0011] A pin is inserted into the portion of the fixing block facing the first end.

[0012] In an optional embodiment, the portion of the flow guide valve located within the mounting hole is provided with a first flat portion, and the inner wall of the mounting hole is provided with a second flat portion, the first flat portion and the second flat portion cooperating.

[0013] In an optional embodiment, the mounting hole is a stepped hole, which includes a first hole segment and a second hole segment that are connected to each other, wherein the inner diameter of the first hole segment is larger than the inner diameter of the second hole segment.

[0014] The flow guide valve includes a valve seat and a valve post protruding from the valve seat. The valve seat is fixed to the first orifice section, and the valve post passes through the second orifice section and extends toward the first end.

[0015] The through hole extends through the valve seat and the valve stem, the water inlet is located on the valve seat, and the water outlet is located on the valve stem.

[0016] In an optional embodiment, a first sealing ring and a second sealing ring are fitted on the valve stem, with the first sealing ring and the second sealing ring located on both sides of the water outlet hole, respectively.

[0017] In an optional embodiment, the side of the fixing block facing the first end is provided with a protruding anti-rotation post.

[0018] In an optional embodiment, a mating sleeve is fitted onto the portion of the endotracheal connector that extends out of the through hole toward the second end.

[0019] In an optional embodiment, the handle tail sleeve further includes a fixing sleeve, which is fitted over the docking sleeve and detachably connected to the air pipe connector or the flow guide valve to fix the docking sleeve.

[0020] In an optional embodiment, the handle tail sleeve further includes a wire, a tail water pipe, and a tail air pipe;

[0021] One end of the wire is connected to the pin, and the other end extends out of the second end;

[0022] One end of the tail water pipe is fitted onto the water pipe connector, and the other end extends out of the second end;

[0023] One end of the tail tube is fitted onto the tube connector, and the other end extends out from the second end.

[0024] In an optional embodiment, the handle tail sleeve further includes a silicone tube, which is fixed inside the tail sleeve housing and extends from the second end. The wire, the tail water pipe, and the tail air pipe are all threaded through the silicone tube.

[0025] In an optional embodiment, the handle tail sleeve further includes a plug with a through hole, the plug being disposed inside the silicone tube so that the silicone tube abuts against the inner wall of the tail sleeve housing;

[0026] The wire, the tail water pipe, and the tail air pipe pass through the through hole.

[0027] In an optional embodiment, the tail water pipe is fitted with a retaining ring, which is used to press the connection between the tail water pipe and the water pipe connector tightly.

[0028] Secondly, the present invention provides an ultrasonic sandblasting device, including the handle tail sleeve described in any of the foregoing embodiments.

[0029] The beneficial effects of the embodiments of the present invention include:

[0030] When the ultrasonic or sandblasting handle is connected to the flow guide valve, water entering through the inlet flows out through the outlet via the water flow channel, supplying water to both types of handles via a handle tail sleeve. Furthermore, because a pin is located on the side of the fixing block facing the first end, when the ultrasonic handle is connected to the handle tail sleeve, the pin can connect to the bottom pin of the transducer on the ultrasonic handle, thus powering the transducer. This allows the transducer to convert electrical energy into mechanical kinetic energy, which then drives the scaling tip through ultrasonic waves to perform the scaling function. Because the air pipe connector is fixedly installed through the through hole, it connects to the sand delivery pipe of the sandblasting handle, thereby enabling the delivery of sand powder for cleaning teeth through sandblasting. This allows the ultrasonic handle and the sandblasting handle to share the same handle tail sleeve. When ultrasonic or sandblasting cleaning is required, it is only necessary to replace the corresponding handle and connect it to the handle tail sleeve, making it more convenient to use. It can reduce the number of parts in the main unit, reduce the space occupied by the main unit, reduce manufacturing costs, and at the same time, it can miniaturize the ultrasonic sandblasting equipment as a whole, improving space utilization. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a cross-sectional view of the ultrasonic handpiece in this embodiment;

[0033] Figure 2 This is a cross-sectional view of the sandblasting handle in this embodiment;

[0034] Figure 3 This is a perspective view of the handle tail sleeve in this embodiment;

[0035] Figure 4 This is a cross-sectional view of the handle tail sleeve in this embodiment;

[0036] Figure 5 This is a perspective view of the tail sleeve outer shell in this embodiment;

[0037] Figure 6 This is a perspective view of the fixing block in this embodiment;

[0038] Figure 7 This is an exploded view of the flow guide valve and sealing ring in this embodiment.

[0039] Icons: 100-Ultrasonic Handle; 110-Ultrasonic Handle Housing; 120-Transducer; 130-Top Sleeve; 140-Water Inlet Connector; 150-Water Hose; 160-Welding Needle; 170-Socket; 180-Cone; 200-Sandblasting Handle; 210-Sandblasting Handle Housing; 220-Nozzle; 221-Air Outlet; 222-First Water Outlet; 223-Second Water Outlet; 230-Nozzle Air Tube; 240-Nozzle Connector; 250-Rear End of Sandblasting Handle; 260-Connecting Pipe; 270-Water Pipe; 280-Diverter Pipe; 300-Handle Tail Sleeve; 310-Tail Sleeve Housing; 311-First End; 312-Second End; 313-Stepped Surface; 320-Fixing Block; 321-Mounting Hole; 32 10-First hole section; 3211-Second hole section; 3212-Second flat position; 322-Assembly hole; 323-Anti-rotation column; 330-Guide valve; 331-Valve seat; 3310-Water inlet hole; 3311-First flat position; 332-Valve column; 3320-Water outlet hole; 3321-First annular groove; 3322-Second annular groove; 333-Through hole; 334-Water flow channel; 335-First sealing ring; 336-Second sealing ring; 340-Air pipe connector; 341-Matching sleeve; 342-Fixing sleeve; 350-Water pipe connector; 360-Pin; 370-Wire; 380-Tail water pipe; 381-Clamping ring; 390-Tail air pipe; 391-Silicone tube; 392-Plug; 3920-Through hole. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They 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. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0047] This invention discloses an ultrasonic sandblasting device, which includes an ultrasonic handle 100, a sandblasting handle 200, and a handle tail sleeve 300. Either the ultrasonic handle 100 or the sandblasting handle 200 can be detachably connected to the handle tail sleeve 300, thereby enabling the ultrasonic handle 100 and the sandblasting handle 200 to share a single handle tail sleeve 300. This allows for ultrasonic and sandblasting cleaning to be performed using a single main unit, reducing the number of components inside the main unit, lowering manufacturing costs, and miniaturizing the ultrasonic sandblasting device to improve space utilization.

[0048] Combination Figure 1 The ultrasonic handle 100 mainly includes an ultrasonic handle housing 110 and a transducer 120, a top sleeve 130, a water inlet connector 140, a water hose 150, a welding needle 160, and a socket 170 inside the ultrasonic handle housing 110. It also includes a cone 180 disposed at the front end of the ultrasonic handle housing 110.

[0049] The plug, transducer 120, and socket 170 are arranged sequentially from top to bottom within the ultrasonic handpiece housing 110. A gap is left between the transducer 120 and the socket 170, allowing a water inlet connector 140 to be installed on the side of the transducer 120 facing the socket 170. Simultaneously, a insertion hole is provided on the side of the socket 170 away from the transducer 120. A water inlet hose 150 is inserted between the two water inlet connectors 140. Thus, when water flows through the insertion hole, the water can enter the water inlet hose 150 through the water inlet connector 140 on the socket 170, and then enter the central hole of the transducer 120 through the water inlet connector 140 on the transducer 120, transmitting the liquid to the cleaning tip. The vibration of the cleaning tip atomizes the water, facilitating the insertion of the vibrating cleaning tip into the oral cavity, thereby achieving the effect of ultrasonic cleaning.

[0050] Combination Figure 2 The sandblasting handle 200 mainly includes a sandblasting handle housing 210, a nozzle 220, a nozzle 220 core tube, a nozzle air pipe 230, a nozzle connector 240, a sandblasting handle rear end 250, a connecting pipe 260, a water pipe 270, and a diverter pipe 280.

[0051] The nozzle 220 is connected to one end of the sandblasting handle housing 210 via a nozzle connector 240. The nozzle 220 core is disposed inside the nozzle 220. A connecting pipe 260 is connected to the part of the nozzle connector 240 away from the nozzle 220. The nozzle air pipe 230 passes through the nozzle connector 240 and the connecting pipe 260. A diverter pipe 280 is disposed inside the sandblasting handle housing 210 away from the nozzle 220 and extends out of the sandblasting handle housing 210. A water pipe 270 is connected between the diverter pipe 280 and the nozzle connector 240 so that when water is supplied through the diverter pipe 280, water can be delivered to the nozzle 220, where it mixes with the sand powder and acts on the patient's tooth surface to achieve the effect of sandblasting cleaning. Simultaneously, a clearance recess is provided on the side of the diverter pipe 280 away from the nozzle 220.

[0052] Combination Figure 3 and Figure 4 The handle tail sleeve 300 includes a tail sleeve housing 310, a fixing block 320, a flow guide valve 330, a water pipe connector 350, an air pipe connector 340, a pin 360, a wire 370, a tail water pipe 380, and a tail air pipe 390.

[0053] Combination Figure 5 The tail sleeve housing 310 is generally a hollow cylindrical structure with a first end 311 and a second end 312 facing away from each other. The first end 311 is used to detachably connect to the sandblasting handle housing 210 of the sandblasting handle 200 or the ultrasonic handle housing 110 of the ultrasonic handle 100 through a threaded connection or other means. The second end 312 is used for the extension of pipes and lines such as the wire 370, the tail water pipe 380 and the tail air pipe 390 to the main unit, thereby providing sand powder, water and electricity.

[0054] The outer diameter of the tail sleeve shell 310 gradually converges from its first end 311 to its second end 312, so that the overall shape of the ultrasonic handle shell 110 or the sandblasting handle shell 210 after being detachably connected to the tail sleeve shell 310 is more rounded and has a better appearance quality.

[0055] An annular stepped surface 313 is formed inside the tail sleeve housing 310. This stepped surface 313 is mainly used for positioning the fixing block 320 to facilitate the assembly of the two. Specifically, the fixing block 320 is roughly cylindrical and is located inside the tail sleeve housing 310. One end face of the fixing block 320 abuts against the stepped surface 313. The outer peripheral wall of the fixing block 320 can be connected to the inner peripheral wall of the tail sleeve housing 310 by means of adhesive or other methods, thereby fixing the fixing block 320 inside the tail sleeve housing 310.

[0056] Combination Figure 6The fixing block 320 is provided with an axially penetrating mounting hole 321 and an assembly hole 322. The mounting hole 321 is mainly used for the flow guide valve 330 to pass through and be installed, while the assembly hole 322 is used for the insertion pin 360 to pass through and be installed.

[0057] In addition, a protruding anti-rotation post 323 is provided on the side of the fixing block 320 facing the first end 311. The anti-rotation post 323 is inserted into the socket 170 or the shunt tube 280 to prevent the ultrasonic handpiece 100 or the sandblasting handpiece 200 from rotating relative to the handpiece tail sleeve 300, thereby avoiding safety accidents caused by improper operation during cleaning.

[0058] The mounting hole 321 is specifically a stepped hole, which includes a first hole section 3210 and a second hole section 3211 that are connected. The inner diameter of the first hole section 3210 is larger than the inner diameter of the second hole section 3211. The flow guide valve 330 is fixedly installed in the mounting hole 321 and extends toward the first end 311.

[0059] Combination Figure 7 The flow guide valve 330 includes a valve seat 331 and a valve stem 332 protruding from the valve seat 331. The valve seat 331 is fixed to the first hole section 3210, and the valve stem 332 passes through the second hole section 3211 and extends toward the first end 311. In this way, by setting both the flow guide valve 330 and the mounting hole 321 for assembling the flow guide valve 330 as a stepped structure, it is convenient to position the flow guide valve 330 and the fixing block 320 in an assembled manner, which facilitates fixation. The fixing block 320 and the flow guide valve 330 can be connected by adhesive or by screws. The flow guide valve 330 is provided with a through hole 333, a water inlet hole 3310, and a water outlet hole 3320. The water inlet hole 3310 penetrates the side of the flow guide valve 330 facing the second end 312, and the water outlet hole 3320 is located at the part of the flow guide valve 330 extending towards the first end 311. The air pipe connector 340 is fixedly inserted through the through hole 333, and a water flow channel 334 is formed between the outer peripheral wall of the air pipe connector 340 and the inner peripheral wall of the through hole 333. Both the water inlet hole 3310 and the water outlet hole 3320 are connected to the water flow channel 334. The two ends of the air pipe connector 340 extend out of the through hole 333, and the part facing the first end 311 is used to connect with the connecting pipe 260 of the sandblasting handle 200. The part of the air pipe connector 340 facing the second end 312 is used to allow sand powder to enter, so as to deliver sand powder into the sandblasting handle 200. The water pipe connector 350 is inserted into the water inlet 3310 for supplying water liquid, thereby injecting water liquid into the water flow channel 334.

[0060] More specifically, a water inlet hole 3310 is provided on the valve seat 331, and a water outlet hole 3320 is provided on the valve stem 332. At the same time, a through hole 333 penetrates the valve seat 331 and the valve stem 332. The water inlet hole 3310 is provided on the valve seat 331, and the water outlet hole 3320 is provided on the valve stem 332.

[0061] Thus, when the valve stem 332 is inserted into the socket 170 of the ultrasonic handle 100 or the diverter tube 280 of the sandblasting handle 200, the water flowing out of the water outlet 3320 is directed to the cleaning tip or nozzle 220.

[0062] To facilitate the circumferential positioning between the flow guide valve 330 and the fixing block 320, a first flat position 3311 is provided at the location of the flow guide valve 330 within the mounting hole 321, that is, the first flat position 3311 is provided on the outer circumferential surface of the valve seat 331. Correspondingly, a second flat position 3212 is provided on the inner wall of the first hole section 3210 of the mounting hole 321. The first flat position 3311 and the second flat position 3212 cooperate to prevent the flow guide valve 330 from rotating relative to the fixing block 320, thus facilitating the assembly and fixing between the two.

[0063] The first flat position 3311 and the second flat position 3212 are configured in a one-to-one correspondence. In this embodiment, there are two of each of the first flat position 3311 and the second flat position 3212. The two first flat positions 3311 are arranged opposite to each other on the outer peripheral wall of the valve seat 331, and the two second flat positions 3212 are also arranged opposite to each other on the inner peripheral wall of the first hole section 3210, thereby improving the positioning effect between the flow guide valve 330 and the fixed block 320.

[0064] Of course, there is no specific limit to the number of the first flat position 3311 and the second flat position 3212. There can be one or more than two. When there are two or more of the first flat position 3311 and the second flat position 3212, the first flat position 3311 is distributed in a circumferentially spaced manner, and the second flat position 3212 is also distributed in a circumferentially spaced manner.

[0065] To ensure that the water outlet 3320 is fitted with a first sealing ring 335 and a second sealing ring 336 onto the ultrasonic handle 100 or the valve stem 332, with the first sealing ring 335 and the second sealing ring 336 located on both sides of the water outlet 3320, when the valve stem 332 is inserted into the insertion hole or the diversion pipe 280, the first sealing ring 335 and the second sealing ring 336 prevent water from escaping outside the area restricted by the first sealing ring 335 and the second sealing ring 336. This avoids water from wetting and damaging the transducer 120 inside the ultrasonic handle 100 or the components inside the sandblasting handle 200, thus ensuring a sealing effect.

[0066] Specifically, a first annular groove 3321 and a second annular groove 3322 are provided on the outer circumferential surface of the valve stem 332. The first annular groove 3321 and the second annular groove 3322 are located on both sides of the water outlet 3320, respectively. The first sealing ring 335 is installed in the first annular groove 3321, and the second sealing ring 336 is installed in the second annular groove 3322. In this way, the first sealing ring 335 and the second sealing ring 336 can be fitted on the valve stem 332.

[0067] Continue to refer to Figure 4 In this embodiment, a mating sleeve 341 is fitted onto the part of the air pipe connector 340 that extends out of the through hole 333 toward the second end 312. The mating sleeve 341 is used for the mating tube 260 of the sandblasting handle 200 to be inserted and engaged, thereby realizing the connection between the air pipe connector 340 and the mating tube 260 through the mating sleeve 341. This allows the sand powder in the air pipe connector 340 to directly enter the mating tube 260, and finally be sprayed out by the nozzle 220 of the sandblasting handle 200 to achieve the sandblasting cleaning function.

[0068] The mating sleeve 341 and the endotracheal connector 340 can be connected using a groove and protrusion fit. Specifically, the outer peripheral wall of the endotracheal connector 340 extending towards the first end 311 from the outlet of the guide valve 330 has multiple annular protrusions spaced apart, while the inner peripheral wall of the mating sleeve 341 has multiple annular grooves spaced apart. The annular grooves and protrusions fit together in a one-to-one correspondence. It is understood that both the mating sleeve 341 and the endotracheal connector 340 are made of elastic material, facilitating their assembly and disassembly.

[0069] In this embodiment, the handle tail sleeve 300 also includes a fixing sleeve 342, which is sleeved outside the docking sleeve 341 and is detachably connected to the air pipe connector 340 or the flow guide valve 330 to fix the docking sleeve 341.

[0070] The fixing sleeve 342 is specifically threaded to the tracheal connector 340. That is, the inner circumferential wall of the fixing sleeve 342 is provided with an internal thread, and the corresponding outer circumferential wall of the tracheal connector 340 is provided with an external thread. In this way, the fixing sleeve 342 and the tracheal connector 340 are relatively fixed through the thread engagement of the external and internal threads. The tightness of the mating sleeve 341 can also be changed according to the thread engagement depth.

[0071] Of course, in order to make the fixing sleeve 342 tightly hug the docking sleeve 341, an annular protrusion is provided on the inner peripheral wall of the fixing sleeve 342 to abut against the outer peripheral wall of the docking sleeve 341, thereby further improving the reliability of the connection between the docking sleeve 341 and the fixing sleeve 342.

[0072] There are two pins 360, which are fixedly inserted into the fixing block 320. Each of the two pins 360 is connected to a wire 370. Specifically, one end of the wire 370 is connected to the pin 360, and the other end extends out to the second end 312 for connection to the power supply inside the main unit. Thus, when the ultrasonic handpiece 100 is connected to the handpiece tail sleeve 300, the pins 360 are connected to the welding needle 160. In this way, the power supply from the main unit can be conducted to the pins 360 through the wire 370, and then to the welding needle 160 through the pins 360, ultimately reaching the transducer 120 and enabling the transducer 120 to operate for ultrasonic cleaning operations. When the sandblasting handpiece 200 is connected to the handpiece tail sleeve 300, the shunt tube 280 has a relief recess, so the pins 360 will extend into the relief recess, thereby avoiding interference between the pins 360 and the connection between the sandblasting handpiece 200 and the handpiece tail sleeve 300.

[0073] One end of the tail water pipe 380 is fitted onto the water pipe connector 350, and the other end extends out to the second end 312 for connection to the water source at the main unit end. This allows the water source at the main unit end to be transported through the tail water pipe 380 to the water flow channel 334 formed between the through hole 333 and the air pipe connector 340. The water is then transported through the water outlet 3320 to the water hose 150 and the water pipe 270.

[0074] A barb structure is provided on the outer peripheral wall of the water pipe connector 350, which allows the tail water pipe 380 to be sleeved on the water pipe connector 350 to achieve an interference fit, making the connection between the two tighter and preventing the tail water pipe 380 from falling off the water pipe connector 350.

[0075] One end of the tail air pipe 390 is sleeved on the air pipe connector 340, and the other end extends out to the second end 312 to connect to the sand-powder-carrying air source at the main unit end. Thus, sand-powder-carrying gas can be introduced into the air pipe connector 340 through the tail air pipe 390, and then through the connecting sleeve 341, the connecting pipe 260, and the nozzle air pipe 230, and then sprayed out from the nozzle core 220 to realize the sandblasting cleaning operation.

[0076] A barb structure is also provided on the outer peripheral wall of the part of the tracheal connector 340 that extends toward the second end 312. This allows the tail tracheal tube 390 to be fitted onto the tracheal connector 340 with an interference fit, making the connection between the two tighter and preventing the tail tracheal tube 390 from falling off the tracheal connector 340 when the air pressure is too high.

[0077] In addition, a retaining ring 381 is fitted outside the tail water pipe 380. The retaining ring 381 is made of rigid metal and is used to press the connection between the tail water pipe 380 and the water pipe connector 350. This can further prevent the tail air pipe 390 from falling off when the air pressure is too high and improve the structural reliability.

[0078] In this embodiment, the handle tail sleeve 300 also includes a silicone tube 391. The silicone tube 391 is fixed inside the tail sleeve housing 310 and extends from the second end 312. The wire 370, the tail water pipe 380, and the tail air pipe 390 are all passed through the silicone tube 391. The silicone tube 391 mainly serves to protect the wire 370, the tail water pipe 380, and the tail air pipe 390, so as to improve the service life of the pipes and lines.

[0079] To facilitate the installation of the silicone tube 391, in this embodiment, the handle tail sleeve 300 also includes a plug 392. The plug 392 has a through hole 3920 and is disposed inside the silicone tube 391 so that the silicone tube 391 abuts against the inner wall of the tail sleeve housing 310. The wire 370, the tail water pipe, and the tail air pipe 390 pass through the through hole 3920.

[0080] The working principle of the handle tail sleeve 300 in this embodiment is illustrated below:

[0081] If ultrasonic cleaning is required, after the tail water pipe 380, tail air pipe 390 and wire 370 are connected to the main unit, the power at the main unit end is introduced into the handle tail sleeve 300 by the two wires 370 and connected to the two pins 360 inserted on the fixing block 320. The pins 360 are inserted into the socket 170 and connected to the corresponding welding pin 160 at the bottom of the transducer 120, thereby transmitting the power to the transducer 120. The transducer 120 converts the power into mechanical kinetic energy, which drives the cleaning tip through ultrasonic waves. The water enters the water pipe connector 350 from the tail water pipe 380 and is guided by the water pipe connector 350 to the water inlet 3310 of the guide valve 330. After passing through the water flow channel 334 formed between the through hole 333 of the guide valve 330 and the air pipe connector 340, it flows from the water outlet 3320 into the socket 170, the water inlet connector 140, the water hose 150 and the center hole of the transducer 120, and then is conducted to the cleaning tip. The water is atomized by the vibration of the cleaning tip, and the vibrating cleaning tip is inserted into the oral cavity to achieve the effect of ultrasonic cleaning.

[0082] If sandblasting is required, after the tail water pipe 380, tail air pipe 390, and wire 370 are connected to the main unit, compressed air raises sand powder, which enters the air pipe connector 340 from the tail air pipe 390, passes through the connecting pipe 260 and the nozzle air pipe 230, and is then transported to the nozzle core through the air outlet 221 of the nozzle 220 before being sprayed out. Water enters the water pipe connector 350 from the tail water pipe 380, and is guided by the water pipe connector 350 to the water inlet 3310 of the guide valve 330. After passing through the guide valve 330, it flows sequentially from the water outlet 3320 into the diverter pipe 280, the water pipe 270, the rear end of the sandblasting handle 250, and the nozzle connector 240. After flowing through the first water outlet 222 of the nozzle 220, it enters the second water outlet 223 and is ejected. Outside the nozzle 220, it merges with the sand-laden air source and acts on the patient's tooth surface to achieve the effect of sandblasting.

[0083] In summary, this embodiment discloses a handle tail sleeve 300 and an ultrasonic sandblasting device. The handle tail sleeve 300 includes a tail sleeve housing 310, a fixing block 320, a flow guide valve 330, a water pipe connector 350, an air pipe connector 340, and a pin 360. The fixing block 320 is provided inside the tail sleeve housing 310 and has a mounting hole 321. The guide valve 330 is fixedly installed through the mounting hole 321 and extends toward one end of the tail sleeve housing 310. The guide valve 330 has a through hole 333, a water inlet hole 3310 and a water outlet hole 3320. The water inlet hole 3310 is close to the second end 312 and the water outlet hole 3320 is close to the first end 311. The water pipe connector 350 is inserted into the water inlet hole 3310. The air pipe connector 340 is fixedly installed through the through hole 333 and a water flow channel 334 is formed between the outer peripheral wall of the air pipe connector 340 and the inner peripheral wall of the through hole 333. The water inlet hole 3310 and the water outlet hole 3320 are both connected to the water flow channel 334. The pin 360 is inserted into the part of the fixing block 320 facing the first end 311.

[0084] Thus, when the ultrasonic handle 100 or the sandblasting handle 200 is connected to the flow guide valve 330, the water entering through the inlet hole 3310 flows out through the water flow channel 334 and out through the outlet hole 3320 to supply water to the ultrasonic handle 100 or the sandblasting handle 200. A handle tail sleeve 300 supplies water to both types of handles. Furthermore, because a pin 360 is provided on the side of the fixing block 320 facing the first end 311, when the ultrasonic handle 100 is connected to the handle tail sleeve, the pin 360 can connect to the bottom welding pin 160 of the transducer 120 on the ultrasonic handle 100, thereby supplying power to the transducer 120. This allows the transducer 120 to convert electrical energy into mechanical kinetic energy, which is then used to drive the scaling tip through ultrasonic waves for teeth cleaning. Since the air pipe connector 340 is fixedly installed in the through hole 333, it is connected to the sand delivery pipe of the sandblasting handle 200 through the air pipe connector 340 to realize the delivery of sand powder for cleaning teeth by sandblasting. Thus, the ultrasonic handle 100 and the sandblasting handle 200 can share the same handle tail sleeve 300. When ultrasonic or sandblasting cleaning is required, it is only necessary to replace the corresponding handle and connect it to the handle tail sleeve 300. It is more convenient to use, reduces the number of parts in the main unit, reduces the space occupied by the main unit, reduces manufacturing costs, and at the same time, it can miniaturize the ultrasonic sandblasting equipment as a whole and improve space utilization.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A handle tail sleeve, characterized in that, include: The tail sleeve housing has a first end and a second end that are opposite to each other; A fixing block is disposed inside the tail sleeve housing and is provided with mounting holes, wherein the side of the fixing block facing the first end is provided with a protruding anti-rotation post; A flow guide valve is fixedly installed through the mounting hole and extends toward the first end; wherein, the flow guide valve is provided with a through hole, an inlet hole and an outlet hole, the inlet hole penetrates the side of the flow guide valve facing the second end, and the outlet hole is provided at the part of the flow guide valve extending toward the first end; A water pipe connector is inserted into the water inlet hole; An air pipe connector is fixedly inserted into the through hole. A water flow channel is formed between the outer peripheral wall of the air pipe connector and the inner peripheral wall of the through hole. The water inlet and the water outlet are both connected to the water flow channel. A connecting sleeve is fitted onto the part of the air pipe connector that extends out of the through hole toward the second end. A pin is inserted into the portion of the fixing block facing the first end.

2. The handle tail sleeve according to claim 1, characterized in that, The flow guide valve has a first flat part located in the mounting hole, and the inner wall of the mounting hole has a second flat part, which cooperates with the first flat part.

3. The handle tail sleeve according to claim 1, characterized in that, The mounting hole is a stepped hole, which includes a first hole segment and a second hole segment that are connected to each other, wherein the inner diameter of the first hole segment is larger than the inner diameter of the second hole segment. The flow guide valve includes a valve seat and a valve post protruding from the valve seat. The valve seat is fixed to the first orifice section, and the valve post passes through the second orifice section and extends toward the first end. The through hole extends through the valve seat and the valve stem, the water inlet is located on the valve seat, and the water outlet is located on the valve stem.

4. The handle tail sleeve according to claim 3, characterized in that, The valve stem is fitted with a first sealing ring and a second sealing ring, which are located on both sides of the water outlet.

5. The handle tail sleeve according to claim 1, characterized in that, The handle tail sleeve also includes a fixing sleeve, which is fitted over the docking sleeve and is detachably connected to the air pipe connector or the flow guide valve to fix the docking sleeve.

6. The handle tail sleeve according to claim 1, characterized in that, The handle tail sleeve also includes a wire, a tail water pipe, and a tail air pipe; One end of the wire is connected to the pin, and the other end extends out of the second end; One end of the tail water pipe is fitted onto the water pipe connector, and the other end extends out of the second end; One end of the tail tube is fitted onto the tube connector, and the other end extends out from the second end.

7. The handle tail sleeve according to claim 6, characterized in that, The handle tail sleeve also includes a silicone tube, which is fixed inside the tail sleeve housing and extends from the second end. The wire, the tail water pipe, and the tail air pipe are all inserted through the silicone tube.

8. The handle tail sleeve according to claim 7, characterized in that, The handle tail sleeve also includes a plug with a through hole. The plug is disposed inside the silicone tube so that the silicone tube abuts against the inner wall of the tail sleeve housing. The wire, the tail water pipe, and the tail air pipe pass through the through hole.

9. The handle tail sleeve according to claim 6, characterized in that, The tail water pipe is fitted with a retaining ring, which is used to press the connection between the tail water pipe and the water pipe connector tightly.

10. An ultrasonic sandblasting device, characterized in that, Includes the handle tail sleeve as described in any one of claims 1-9.

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