Water supply adapter for sterile water source of dental handpiece

Abstract

The utility model discloses a sterile water source water supply adapter for a dental handpiece. The adapter comprises a body, an end air inlet pipe and a gasket, one end of the body is an inlet end, the other end of the body is an outlet end, a water inlet channel and an air inlet channel communicated with the inlet end and the outlet end are arranged in the body, and the end air inlet pipe is arranged at one end, close to the inlet end, of the air inlet channel; the gasket is provided with a first through hole and arranged at the inlet end, and the end air inlet pipe penetrates through the first through hole. The problem that connection sealing performance or stability of an adapter and a dental chair tail line is not enough is solved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, and in particular to a dental handpiece sterile water supply converter. Background Technology

[0002] In dental instruments, dental handpieces have an adapter at one end, which is used to connect to the dental chair tailline and sterile water devices. Existing adapters have various end tubes on the end that connects to the dental chair tailline, through which they are connected.

[0003] Therefore, when various types of end tubes are connected to the dental chair tail wire, there are problems with insufficient sealing or stability at the connection point. Utility Model Content

[0004] In order to overcome at least one of the defects described in the prior art, the present invention provides a dental handpiece sterile water supply converter to solve the problem of insufficient sealing or stability of the connection between the converter and the dental chair tail cable.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A dental handpiece sterile water supply adapter includes a body, an end air inlet tube, and a gasket;

[0007] One end of the body is an inlet end and the other end is an outlet end. The body is provided with a water inlet channel and an air inlet channel connecting the inlet end and the outlet end. The end air inlet pipe is provided at the end of the air inlet channel near the inlet end.

[0008] The washer is provided with a first through hole, the washer is provided at the inlet end, and the end air inlet pipe passes through the first through hole.

[0009] Furthermore, the washer includes a base ring and a first extended boss;

[0010] The base ring is disposed at the inlet end, the first through hole is disposed at the base ring, and the first extended boss is disposed on the side of the base ring away from the body;

[0011] The end air inlet pipe passes through the first through hole and the extended boss.

[0012] Furthermore, the outer contour of the first extended boss is a frustum, and the end of the first extended boss away from the base ring is the small end.

[0013] Furthermore, it also includes end mist pipes;

[0014] The main body has a mist channel in the middle that connects the inlet end and the outlet end, and the end mist pipe is located at the end of the mist channel near the inlet end;

[0015] The washer further includes a second extended boss, which is disposed on the side of the base ring away from the body. The base ring is provided with a second through hole, and the end mist pipe passes through the second through hole and the second extended boss.

[0016] Furthermore, the outer contour of the second extended boss is a frustum, and the end of the second extended boss away from the base ring is the small end.

[0017] Furthermore, it also includes end exhaust pipes;

[0018] The main body has an exhaust channel in the middle that connects the inlet end and the outlet end, and the end exhaust pipe is located at the end of the exhaust channel near the inlet end;

[0019] The washer also includes a third extended boss, which is disposed on the side of the base ring away from the body. The base ring is provided with a third through hole, and the end exhaust pipe passes through the third through hole and the third extended boss.

[0020] Furthermore, the outer contour of the third extended boss is a frustum, and the end of the third extended boss away from the base ring is the small end.

[0021] Furthermore, it also includes a connecting nut, which is fitted onto the outlet end of the body and rotates on the body.

[0022] Furthermore, it also includes clasps;

[0023] The retaining ring is sleeved on the outlet end of the body and is located inside the connecting nut to seal the gap between the connecting nut and the body.

[0024] Alternatively, it may also include a retaining ring, which is sleeved on the outlet end of the body and located inside the connecting nut to seal the gap between the connecting nut and the body; the retaining ring has a notch.

[0025] Furthermore, one end of the water inlet channel is connected to the outlet end, and the other end is connected to the side wall of the main body;

[0026] Alternatively, it may also include a water inlet pipe, one end of the air inlet channel being connected to the outlet end and the other end being connected to the side wall of the body, one end of the water inlet pipe being connected to one end of the water inlet channel on the side wall of the body, and the other end extending toward the inlet end.

[0027] In summary, the dental handpiece sterile water supply converter provided by this utility model has the following technical effects:

[0028] A gasket is installed at the inlet end of the adapter. The dental chair tail line is connected to the inlet end of the adapter. The gasket plays a role in sealing and enhancing the tightness of the connection between the dental chair tail line and the adapter, thus preventing problems such as leakage of liquid or air between the two. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of one embodiment of the present utility model;

[0030] Figure 2 for Figure 1 Exploded view;

[0031] Figure 3 for Figure 1 A schematic diagram of the gasket structure;

[0032] Figure 4 This is another structural schematic diagram of an embodiment of the present utility model;

[0033] Figure 5 for Figure 4 A sectional view of AA.

[0034] The meanings of the reference numerals in the attached figures are as follows:

[0035] 10. Body; 11. Air intake channel; 12. Water intake channel; 13. Mist channel; 14. Exhaust channel; 20. End air intake pipe; 30. End mist pipe; 40. Snap ring; 41. Notch; 50. Washer; 51. Base ring; 52. First extension boss; 53. Second extension boss; 54. Third extension boss; 55. First through hole; 56. Second through hole; 57. Third through hole; 60. End exhaust pipe; 70. Water intake pipe; 80. Connecting nut. Detailed Implementation

[0036] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0039] See Figures 1 to 5 This utility model discloses a sterile water supply converter for dental handpieces, including a body 10, an end air inlet pipe 20, and a washer 40. One end of the body 10 is an inlet end, and the other end is an outlet end. The body 10 is provided with a water inlet channel 12 and an air inlet channel 11 connecting the inlet end and the outlet end. The end air inlet pipe 20 is provided at the end of the air inlet channel 11 near the inlet end. The washer 40 is provided with a first through hole 55. The washer 40 is provided at the inlet end, and the end air inlet pipe 20 passes through the first through hole 55.

[0040] The body 10 is preferably a cylindrical structure. For ease of description, the end of the body 10 used to connect with the dental chair tail line (not shown in the figure) is now designated as the inlet end, and the other end as the outlet end. Correspondingly, the dental chair tail line is provided with an air supply channel that connects to the air intake channel 11. Preferably, the inlet end of the body is provided with an external thread, and one end of the dental chair tail line is provided with an internal thread, with the internal thread and the external thread screwed together to complete the connection between the two.

[0041] Importantly, this application includes a gasket 40, and as mentioned above, an end air inlet pipe 20 is provided on the inlet end. One end of the end air inlet pipe 20 is inserted into the end of the air inlet channel 11 near the inlet end, and the other end is used to be inserted into the air delivery channel when the body 10 is connected to the dental chair body.

[0042] In addition, one end of the water inlet channel 12 is located at the outlet end, and the other end is connected to an external sterile water source.

[0043] In summary, the outlet end of the body 10 in this embodiment is used to connect with the dental handpiece, so the dental chair tail line provides high-pressure gas to the dental handpiece through the air inlet channel 11 to drive the dental handpiece to work, while the water inlet channel supplies sterile water to the dental handpiece.

[0044] Optional, combined Figure 2 The gasket 50 includes a base ring 51 and a first extended boss 52; the base ring 51 is disposed at the inlet end, the first through hole 55 is disposed at the base ring 51, and the first extended boss 52 is disposed on the side of the base ring 51 away from the body 10; the end air inlet pipe 20 passes through the first through hole 55 and the first extended boss 52.

[0045] In this embodiment, the washer 50 has a matching shape with the end of the inlet of the body 10. Importantly, the first extending boss 52 extends from the side of the base ring 51 away from the body 10 to the end away from the body 10. Since the end air inlet pipe 20 passes through the first through hole 55 and the first extending boss 52, the first extending boss 52 supports the end air inlet pipe 20, preventing it from shaking. In particular, this embodiment uses a boss to support the end air inlet pipe 20, avoiding an overall thickening of the base ring 51, saving material and reducing weight.

[0046] Optionally, the outer contour of the first extended boss 42 is a frustum, and the end of the first extended boss 52 away from the base ring 51 is the small end.

[0047] In this embodiment, the outer contour of the first extended boss 42 is a frustum. Correspondingly, the end of the air supply channel that is inserted into the end air inlet pipe 20 is provided with a slope that matches the outer contour of the frustum. Thus, when the inlet end of the body 10 is connected to the dental chair tail line, the slope of the frustum is adapted to the slope of the air supply channel. Then, as the body 10 and the dental chair tail line are locked together, the small end of the frustum is compressed to a certain extent. Therefore, the first extended boss 42 contracts and presses the end air inlet pipe 20, which on the one hand better fixes the end air inlet pipe 20, and on the other hand, the space in the middle of the first extended boss 42 and the slope forms an insertion joint, improving the sealing between the end air inlet pipe 20 and the air supply channel and improving the stability of the insertion of the end air inlet pipe 20. Optionally, the washer 40 is made of plastic material.

[0048] Optionally, it also includes an end mist pipe 30; the body 10 is provided with a mist channel 13 in the middle, connecting the inlet end and the outlet end, and the end mist pipe 30 is provided at one end of the mist channel 13 near the inlet end; the gasket 50 also includes a second extension boss 53, the second extension boss 53 is provided on the side of the base ring 51 away from the body 10, the base ring 51 is provided with a second through hole 56, and the end mist pipe 30 passes through the second through hole 56 and the second extension boss 53.

[0049] In this embodiment, the end mist pipe 30 can be configured similarly to the end air inlet pipe 20 described above, and the toothed chair tail line is provided with a mist delivery channel connected to the mist channel 13. The end mist pipe 30 is inserted into one end of the mist delivery channel. The mist delivery channel of the toothed chair tail line delivers mist to the mist channel 13.

[0050] Optionally, the outer contour of the second extended boss 53 is a frustum, and the end of the second extended boss 53 away from the base ring 51 is the small end.

[0051] In this design, the reference air delivery channel also has a slope at one end of the mist delivery channel, and the frustum profile of the second extended boss 53 is adapted to and engaged with the slope of the mist delivery channel. Following the previous example, further details are omitted here.

[0052] Optionally, the feature is that it further includes an end exhaust pipe 60; the body 10 is provided with an exhaust channel 14 connecting the inlet end and the outlet end in the middle, and the end exhaust pipe 60 is provided at one end of the exhaust channel 14 near the inlet end; the gasket 50 further includes a third extending boss 54, the third extending boss 54 is provided on the side of the base ring 51 away from the body 10, the base ring 51 is provided with a third through hole 57, and the end exhaust pipe 60 passes through the third through hole 57 and the third extending boss 54.

[0053] Referring to the previous example, the dental chair tailline is provided with an air passage connected to the exhaust passage 14. The end exhaust pipe 60 is inserted into one end of the air passage. The exhaust passage 14 transports excess gas from the main body 10 to the air passage of the dental chair tailline to expel excess gas, thereby preventing gas accumulation.

[0054] In summary, the first extension boss 52 is provided with an inner hole with the same outer diameter as the portion of the end air intake pipe 20 that extends out of the body 10; the second extension boss 53 is provided with an inner hole with the same outer diameter as the portion of the end mist pipe 30 that extends out of the body 10; and the third extension boss 54 is provided with an inner hole with the same outer diameter as the portion of the end exhaust pipe 60 that extends out of the body 10.

[0055] Furthermore, based on the foregoing, it can be known that the end air inlet pipe 20, the end mist pipe 30, and the end exhaust pipe 60 correspond to the first through hole 55, the second through hole 56, the third through hole 57, and the first extension boss 52, the second extension boss 53, and the third extension boss 54 on the base ring 51, respectively. Therefore, it can be known that the number of through holes and bosses on the base ring 51 is at least equal to the number of pipes provided at the inlet end of the body 10. The three through holes and three bosses mentioned above correspond to three channels. Of course, the number of through holes and bosses can be four or more, thereby satisfying the use of normal functions. In addition, the extra through holes and bosses can be used as spares for newly added pipes.

[0056] Optionally, the outer contour of the third extended boss 54 is a frustum, and the end of the third extended boss 54 away from the base ring 51 is the small end.

[0057] Referring to the previous example, one end of the air passage is also provided with a slope, and the frustum outline of the third extended protrusion 54 is adapted to and engaged with the slope of the mist delivery passage. Further details will not be elaborated upon here, following the previous example.

[0058] Optionally, a connecting nut 80 is also included, which is fitted onto the outlet end of the body 10 and rotates on the body 10.

[0059] The connecting nut 80 is threaded onto the dental handpiece. Specifically, the inner surface of the end of the connecting nut 80 that fits onto the body 10 can have a smooth surface, allowing the connecting nut 80 to rotate on the body 10 for easy rotational connection with the dental handpiece.

[0060] Optionally, it also includes a retaining ring 40; the retaining ring 40 is sleeved on the body 10 and located inside the connecting nut 80 to close the gap between the connecting nut 80 and the body 10; or, it also includes a retaining ring 40, the retaining ring 40 is sleeved on the body 10 and located inside the connecting nut 80 to close the gap between the connecting nut 80 and the body 10; the retaining ring 40 is provided with a notch 41.

[0061] As described above, the connecting nut 80 and the body 10 are sleeved together, which may result in a gap between them. In this embodiment, the gap is located on the body 10 near the outlet end. The retaining ring 40 is generally a plastic ring, which fills the gap between the connecting nut 80 and the body 10 to achieve a seal.

[0062] Based on the above, the retaining ring 40 can be configured with a notch 41 structure, which makes it easier for the retaining ring 40 to be fitted onto the body 10.

[0063] Furthermore, the main body 10 is provided with an annular groove, and the retaining ring 40 is set in the groove, so that the retaining ring 40 is not easy to move out of place.

[0064] Furthermore, the inner wall of the end of the connecting nut 80 that is fitted onto the body 10 has an inwardly protruding protrusion, preferably a convex ring. The retaining ring 40 is located on the side of the convex ring away from the outlet end, so that when the convex ring moves toward the outlet end, the convex ring will abut against the retaining ring 40, which can prevent the connecting nut 80 from falling off the outlet end of the body 10.

[0065] Optionally, one end of the air intake channel 11 is connected to the outlet end, and the other end is connected to the side wall of the body 10; or, it also includes a water inlet pipe 70, one end of the air intake channel 11 is connected to the outlet end, and the other end is connected to the side wall of the body 10, and one end of the water inlet pipe 70 is connected to one end of the air intake channel 11 on the side wall of the body 10, and the other end extends toward the inlet end.

[0066] If the water inlet channel 12 is also set through the body 10, this solution can supply water through the dental chair tail line. However, the difference in this embodiment is that this embodiment uses external sterile water. The sterile water is directly guided to the body 10 through the water inlet channel 12, and then to the dental handpiece. In this embodiment, the end of the water inlet channel 12 located on the side wall of the body 10 is the water inlet end, and the end located at the outlet end is the water outlet end. The water inlet end receives sterile water and supplies water to the dental handpiece.

[0067] Based on the above, this embodiment adds a water inlet pipe 70. Preferably, the water inlet pipe 70 has an L-shaped structure. One end of the water inlet pipe 70 is inserted into the water inlet, and the other end extends towards the water inlet. The significance of this arrangement is that when the water inlet pipe 70 is connected to the sterile water pipeline, the pipeline can be arranged and extended in the same direction as the dental chair tail line, which facilitates pipeline routing and avoids interference with the dental handpiece.

[0068] Additionally, to improve the stability of the connection between the end air inlet pipe 20, end mist pipe 30, end exhaust pipe 60, and water inlet pipe 70 and the body 10, corresponding insertion posts are provided at the ends where they are inserted. The diameter of the insertion posts is larger than the outer diameter of the corresponding pipes, in order to improve the stability of the connection between each pipe and the body 10. Furthermore, a sealing ring is provided on the outer surface of each insertion post to enhance the sealing performance.

[0069] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A dental handpiece sterile water supply adapter, characterized in that, Includes a main body (10), an end air inlet pipe (20), and a gasket (50); One end of the body (10) is an inlet end and the other end is an outlet end. The body (10) is provided with a water inlet channel (12) and an air inlet channel (11) connecting the inlet end and the outlet end. The end air inlet pipe (20) is located at the end of the air inlet channel (11) near the inlet end. The washer (50) is provided with a first through hole (55), the washer (50) is provided at the inlet end, and the end air inlet pipe (20) passes through the first through hole (55).

2. The dental handpiece sterile water supply converter according to claim 1, characterized in that, The washer (50) includes a base ring (51) and a first extended boss (52); The base ring (51) is disposed at the inlet end, the first through hole (55) is disposed at the base ring (51), and the first extension boss (52) is disposed on the side of the base ring (51) away from the body (10). The end air inlet pipe (20) passes through the first through hole (55) and the first extension boss (52).

3. A dental handpiece sterile water supply converter according to claim 2, characterized in that, The outer contour of the first extended boss (42) is a frustum, and the end of the first extended boss (52) away from the base ring (51) is the small end.

4. A dental handpiece sterile water supply converter according to claim 2, characterized in that, It also includes an end mist pipe (30); The body (10) is provided with a mist channel (13) in the middle, which connects the inlet end and the outlet end, and the end mist pipe (30) is provided at the end of the mist channel (13) near the inlet end; The washer (50) further includes a second extension boss (53), which is disposed on the side of the base ring (51) away from the body (10). The base ring (51) is provided with a second through hole (56), and the end mist pipe (30) passes through the second through hole (56) and the second extension boss (53).

5. A dental handpiece sterile water supply converter according to claim 4, characterized in that, The outer contour of the second extended boss (53) is a frustum, and the end of the second extended boss (53) away from the base ring (51) is the small end.

6. A dental handpiece sterile water supply converter according to claim 2 or 4, characterized in that, It also includes an end exhaust pipe (60); The body (10) is provided with an exhaust channel (14) in the middle, which connects the inlet end and the outlet end, and the end exhaust pipe (60) is provided at the end of the exhaust channel (14) near the inlet end; The washer (50) further includes a third extension boss (54), which is disposed on the side of the base ring (51) away from the body (10). The base ring (51) is provided with a third through hole (57), and the end exhaust pipe (60) passes through the third through hole (57) and the third extension boss (54).

7. A dental handpiece sterile water supply converter according to claim 6, characterized in that, The outer contour of the third extended boss (54) is a frustum, and the end of the third extended boss (54) away from the base ring (51) is the small end.

8. A dental handpiece sterile water supply converter according to claim 1, characterized in that, It also includes a connecting nut (80), which is fitted onto the outlet end of the body (10) and rotates on the body (10).

9. A dental handpiece sterile water supply converter according to claim 8, characterized in that, It also includes a retaining ring (40); The retaining ring (40) is sleeved on the outlet end of the body (10), and the retaining ring (40) is located inside the connecting nut (80) to close the gap between the connecting nut (80) and the body (10); Alternatively, it may also include a retaining ring (40), which is sleeved on the outlet end of the body (10). The retaining ring (40) is located inside the connecting nut (80) to close the gap between the connecting nut (80) and the body (10). The retaining ring (40) has a notch (41).

10. A dental handpiece sterile water supply adapter according to any one of claims 1-5 and 7-9, characterized in that, One end of the water inlet channel (12) is connected to the outlet end, and the other end is connected to the side wall of the body (10); Alternatively, it may also include a water inlet pipe (70), one end of the air inlet channel (11) being connected to the outlet end and the other end being connected to the side wall of the body (10), one end of the water inlet pipe (70) being connected to the water inlet channel (12) at one end of the side wall of the body (10), and the other end extending toward the inlet end.

Images