Dental high-speed handpiece oil injection nozzle

Abstract

The utility model discloses a dental high-speed handpiece oil injection nozzle, which relates to the technical field of dental medical instruments and comprises an oil injection nozzle body, the oil injection nozzle body comprises an oil inlet end connected with an oil bottle and an oil outlet end connected with a handpiece, the oil inlet end is provided with an oil inlet interface, and the oil outlet end is provided with an oil outlet interface and an anti-backflow butt joint part. The oil inlet connector is communicated with the oil outlet connector, the oil outlet connector is used for being connected with an air inlet in the end of the mobile phone, and the backflow prevention butt joint part is used for blocking an air return opening in the end of the mobile phone. According to the utility model, cleaning lubricating oil can reach the machine head bearing more easily, and meanwhile, the lubricating oil can be prevented from being sprayed out from the air return hole of the high-speed machine.

Description

Technical Field

[0001] The utility model relates to the technical field of dental medical instruments, in particular to a dental high-speed mobile phone oiling nozzle. Background Art

[0002] High-speed handpieces are a valuable aid for dentists performing surgical procedures. To extend their service life, they require regular oiling and maintenance. The current method for oiling and maintenance involves inserting the oiling nozzle of an oiling bottle into the air inlet at the end of the handpiece and pressing the button on the top of the oiling bottle to spray clean lubricating oil into the handpiece. Once the clean lubricating oil enters the handpiece, it sprays out through the return air hole, resulting in only a small amount of the clean lubricating oil reaching the handpiece bearings. This results in poor oiling and cleaning effectiveness, and also causes a large amount of oil to accumulate inside the handpiece, causing waste. It can also splash clean lubricating oil onto the maintenance personnel's clothing. Therefore, the oiling method of directly connecting the oiling bottle to the high-speed handpiece has certain drawbacks and is inconvenient for oiling and maintenance work. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a dental high-speed handpiece oiling nozzle, which makes it easier for clean lubricating oil to reach the handpiece bearing and prevents the lubricating oil from splashing out from the return air hole of the high-speed handpiece.

[0004] In order to achieve the purpose of the utility model, the following technical solutions are adopted:

[0005] A dental high-speed handpiece oiling nozzle comprises an oiling nozzle body, the oiling nozzle body comprising an oil inlet end connected to an oil bottle and an oil outlet end connected to a handpiece, the oil inlet end being provided with an oil inlet interface, the oil outlet end being provided with an oil outlet interface and a backflow prevention docking portion, the oil inlet interface and the oil outlet interface being communicated with each other, the oil outlet interface being used to connect to an air inlet at the end of the handpiece, and the backflow prevention docking portion being used to block an air return port at the end of the handpiece.

[0006] Furthermore, the oil inlet interface includes a first connecting section and a second connecting section which are opened in sequence downward from the oil inlet end. The inner diameter of the first connecting section is larger than the inner diameter of the second connecting section. The second connecting section is provided with an internal thread for connecting to the oil bottle.

[0007] Furthermore, the aperture of the oil outlet interface is greater than 3 mm, and the aperture of the anti-backflow docking portion is greater than 4 mm.

[0008] Furthermore, a first sealing ring is provided on the inner wall of the oil outlet interface.

[0009] Furthermore, the anti-backflow docking portion is a blind hole opened from the oil outlet end to the oil inlet end, and a second sealing ring is provided on the inner wall of the anti-backflow docking portion.

[0010] Furthermore, the oil outlet interface includes a first plug connector protruding from the end surface of the oil outlet end, and the first plug connector is used to be inserted into the air inlet at the end of the mobile phone.

[0011] The anti-backflow docking portion includes a second plug connector protruding from the end surface of the oil outlet end, and the second plug connector is used to be inserted into the return air port at the end of the mobile phone.

[0012] Furthermore, a third sealing ring is sleeved on the outer wall of the first plug connector, and a fourth sealing ring is sleeved on the outer wall of the second plug connector.

[0013] Furthermore, a sealing gasket is provided on the oil outlet end, and the first plug connector and the second plug connector pass through the sealing gasket.

[0014] Furthermore, the outer diameter of the first plug connector is less than 4 mm, and the outer diameter of the second plug connector is less than 5 mm.

[0015] Furthermore, the oil filling nozzle body is provided with a side recess at the oil outlet end for avoiding the joints of the mobile phone's atomizing air pipe and atomizing water pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The oil filling nozzle body of the utility model can be connected between the mobile phone and the oil bottle. Since the oil inlet interface and the oil outlet interface are connected, the anti-backflow docking part can block the return air hole. When the clean lubricating oil is injected into the mobile phone through the oil inlet interface, the clean lubricating oil is not easy to spray out from the return air hole, thereby avoiding splashing onto the clothes of the maintenance personnel.

[0018] 2. Since the anti-backflow docking part blocks the return air hole, most of the clean lubricating oil reaches the head bearing, which is beneficial to improve the effect of oil filling and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of embodiment 1 of the present invention.

[0020] Figure 2 It is a structural diagram of embodiment 2 of the present utility model.

[0021] Figure 3 It is a cross-sectional view of Example 3 of the present utility model.

[0022] Figure 4 It is a front view of the use state of embodiment 1 of the utility model.

[0023] Figure 5 It is a top partial cross-sectional view of the use state of embodiment 1 of the utility model.

[0024] Figure 6 It is a schematic diagram of the high-speed mobile phone end in the prior art.

[0025] Numbers in the figure: 1. Oil filling nozzle body; 101. Oil inlet end; 102. Oil outlet end; 2. Oil inlet interface; 21. First connecting section; 22. Second connecting section; 3. Oil outlet interface; 4. Anti-backflow docking part; 5. Side recess; 6. First plug connector; 7. Second plug connector; 8. First sealing ring; 9. Second sealing ring; 10. Third sealing ring; 11. Fourth sealing ring; 12. Mobile phone; 13. Air inlet; 14. Air return port; 15. Oil bottle; 16. Sealing gasket. DETAILED DESCRIPTION

[0026] In order to better understand the purpose, technical solution and technical effect of the present invention, the present invention is further explained below with reference to the accompanying drawings and embodiments. It is also stated that the embodiments described below are only used to explain the present invention and are not intended to limit the present invention.

[0027] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as limiting the scope of protection of this application.

[0028] Example 1:

[0029] like Figure 1 As shown, the dental high-speed handpiece oiling nozzle of this embodiment includes an oiling nozzle body 1, which includes an oiling nozzle body 1 including an oil inlet end 101 connected to the oil bottle 15 and an oil outlet end 102 connected to the handpiece 12, wherein the oil inlet end 101 is provided with an oil inlet interface 2, and the oil outlet end 102 is provided with an oil outlet interface 3 and an anti-backflow docking portion 4, the oil inlet interface 2 and the oil outlet interface 3 are connected, the oil outlet interface 3 is used to connect to the air inlet 13 at the end of the handpiece 12, and the anti-backflow docking portion 4 is used to block the return air port 14 at the end of the handpiece 12.

[0030] In order to improve the sealing performance, a first sealing ring 8 is provided on the inner wall of the oil outlet interface 3, the anti-backflow docking part 4 is a blind hole opened from the oil outlet end 102 to the oil inlet end 101, and a second sealing ring 9 is provided on the inner wall of the anti-backflow docking part 4, that is, sealing grooves are opened on the inner walls of the oil outlet interface 3 and the anti-backflow docking part 4, and the first sealing ring 8 and the second sealing ring 9 are installed on the sealing grooves.

[0031] The oil outlet interface 3 has a hole diameter greater than 3 mm so as to be connected to the air inlet 13 of the mobile phone 12 , and the anti-backflow docking portion 4 has a hole diameter greater than 4 mm so as to be connected to the air return port 14 of the mobile phone 12 .

[0032] In addition to the air inlet 13 and the air return port 14, the end of the mobile phone 12 also has an atomizing air connector and an atomizing water connector. In order to avoid interference during connection, the oiler nozzle body 1 is provided with a side recess 5 at the oil outlet end 102 for avoiding the atomizing air pipe and atomizing water pipe connector of the mobile phone 12, which can facilitate and stably connect the oiler nozzle body 1 to the end of the mobile phone 12.

[0033] The oil inlet interface 2 includes a first connecting section 21 and a second connecting section 22 which are opened in sequence downward from the oil inlet end 101. The first connecting section 21 and the second connecting section 22 are coaxial circular holes. The inner diameter of the first connecting section 21 is larger than the inner diameter of the second connecting section 22. The second connecting section 22 is provided with an internal thread for connecting to the oil bottle 15. The first connecting section 21 can be used to connect to the oil bottle 15 with a larger injection joint on the market, while the second connecting section 22 can be adapted to connect to the oil bottle 15 with a small injection joint. The second connecting section 22 is provided with an internal thread to tap the outer wall of the injection joint, thereby achieving a stable connection with the oil bottle 15.

[0034] like Figures 4 to 6 As shown, during use, the oil outlet end 102 of the oil filling nozzle body 1 can be directed toward the mobile phone 12, the oil inlet end 101 can be directed toward the oil bottle 15, the oil outlet interface 3 is connected to the air inlet 13 of the mobile phone 12, the anti-backflow docking part 4 is connected to the return air port 14 of the mobile phone 12, the connector of the oil bottle 15 is connected to the oil inlet interface 2, and then the top button of the oil bottle 15 is pressed to inject the lubricating oil into the mobile phone 12. Since the return air port 14 is blocked by the anti-backflow docking part 4, the lubricating oil can reach the head bearing for lubrication under high pressure, and at the same time, it also prevents the lubricating oil from spraying out of the return air port 14, which helps to prevent the lubricating oil from splashing onto the clothes of the maintenance personnel.

[0035] Example 2:

[0036] like Figure 2 As shown, the dental high-speed handpiece oiling nozzle of this embodiment includes an oiling nozzle body 1, which includes an oiling nozzle body 1 including an oil inlet end 101 connected to the oil bottle 13 and an oil outlet end 102 connected to the handpiece 12, wherein the oil inlet end 101 is provided with an oil inlet interface 2, and the oil outlet end 102 is provided with an oil outlet interface 3 and an anti-backflow docking portion 4, the oil inlet interface 2 and the oil outlet interface 3 are connected, the oil outlet interface 3 is used to connect to the air inlet 13 at the end of the handpiece 12, and the anti-backflow docking portion 4 is used to connect to the air return port 14 at the end of the handpiece 12.

[0037] The difference from Example 1 is that the oil outlet interface 3 includes a first plug connector 6 protruding from the end surface of the oil outlet end 102, and the first plug connector 6 is used to be inserted into the air inlet 13 at the end of the mobile phone 12. The backflow prevention docking portion 4 includes a second plug connector 7 protruding from the end surface of the oil outlet end 102, and the second plug connector 7 is used to be inserted into the air return port 14 at the end of the mobile phone 12.

[0038] In order to obtain better sealing, the sealing method is as follows: a third sealing ring 10 is sleeved on the outer wall of the first plug connector 6, and a fourth sealing ring 11 is sleeved on the outer wall of the second plug connector 7. For example, a sealing groove is opened on the outer walls of the first plug connector 6 and the second plug connector, and the third sealing ring 10 and the fourth sealing ring 11 are installed on the sealing groove.

[0039] The outer diameter of the first plug connector 6 is less than 4 mm so that the first plug connector 6 can be inserted into the air inlet 13 , and the outer diameter of the second plug connector 7 is less than 5 mm so that the second plug connector 7 can be inserted into the air return port 14 .

[0040] Compared with Example 1, in this embodiment, since the first plug connector 6 and the second plug connector 7 extend into the interior of the mobile phone 12, lubricating oil is less likely to seep out of the air inlet 13 and the air return port 14. When the oiling nozzle body 1 is removed from the end of the mobile phone 12, the surface is cleaner.

[0041] Example 3:

[0042] like Figure 3 As shown, the difference between the dental high-speed handpiece oiling nozzle of this embodiment and that of embodiment 2 lies in the different sealing methods. The sealing method of this embodiment is as follows: a sealing gasket 16 is provided on the oil outlet end 102, and the first plug connector 6 and the second plug connector 7 pass through the sealing gasket 16. When the first plug connector 6 is inserted into the air inlet 13 and the second plug connector 7 is inserted into the air return port 14, the sealing gasket 16 is squeezed between the end of the handpiece 12 and the oil outlet end 102 to form a seal, which helps to prevent lubricating oil leakage.

[0043] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A dental high-speed handpiece oiling nozzle, characterized by: The invention comprises an oil filling nozzle body (1), the oil filling nozzle body (1) comprising an oil inlet end (101) connected to an oil bottle and an oil outlet end (102) connected to a mobile phone, the oil inlet end (101) being provided with an oil inlet interface (2), the oil outlet end (102) being provided with an oil outlet interface (3) and a backflow prevention docking portion (4), the oil inlet interface (2) and the oil outlet interface (3) being connected, the oil outlet interface (3) being used to connect to an air inlet at the end of a mobile phone, and the backflow prevention docking portion (4) being used to block an air return port at the end of the mobile phone.

2. The dental high-speed handpiece oiling nozzle according to claim 1, characterized in that: The oil inlet interface (2) comprises a first connecting section (21) and a second connecting section (22) which are sequentially opened downward from the oil inlet end (101); the inner diameter of the first connecting section (21) is larger than the inner diameter of the second connecting section (22); and the second connecting section (22) is provided with an internal thread for connecting to an oil bottle.

3. The dental high-speed handpiece oiling nozzle according to claim 1, characterized in that: The aperture of the oil outlet interface (3) is greater than 3 mm, and the aperture of the anti-backflow docking portion (4) is greater than 4 mm.

4. The dental high-speed handpiece oiling nozzle according to claim 3, characterized in that: A first sealing ring (8) is provided on the inner wall of the oil outlet interface (3).

5. The dental high-speed handpiece oiling nozzle according to claim 3, characterized in that: The anti-backflow docking portion (4) is a blind hole opened from the oil outlet end (102) to the oil inlet end (101), and a second sealing ring (9) is provided on the inner wall of the anti-backflow docking portion (4).

6. The dental high-speed handpiece oiling nozzle according to claim 1, characterized in that: The oil outlet interface (3) comprises a first plug connector (6) protruding from the end surface of the oil outlet end (102), and the first plug connector (6) is used to be inserted into the air inlet at the end of the mobile phone.

7. The dental high-speed handpiece oiling nozzle according to claim 6, characterized in that: The anti-backflow docking portion (4) comprises a second plug connector (7) protruding from the end surface of the oil outlet end (102), and the second plug connector (7) is used for inserting into the air return port at the end of the mobile phone.

8. The dental high-speed handpiece oiling nozzle according to claim 7, characterized in that: A third sealing ring (10) is sleeved on the outer wall of the first plug connector (6), and a fourth sealing ring (11) is sleeved on the outer wall of the second plug connector (7).

9. The dental high-speed handpiece oiling nozzle according to claim 7, characterized in that: A sealing gasket (16) is provided on the oil outlet end (102), and the first plug connector (6) and the second plug connector (7) pass through the sealing gasket (16).

10. The dental high-speed handpiece oiling nozzle according to claim 7, characterized in that: The outer diameter of the first plug connector (6) is less than 4 mm, and the outer diameter of the second plug connector (7) is less than 5 mm.

11. The dental high-speed handpiece oiling nozzle according to claim 1, characterized in that: The oiling nozzle body (1) is provided with a side recess (5) at the oil outlet end (102) for avoiding the joints of the mobile phone atomizing air pipe and atomizing water pipe.

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