CN215080042U - Adapter and dental three-purpose spray gun head - Google Patents
Adapter and dental three-purpose spray gun head Download PDFInfo
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- CN215080042U CN215080042U CN202120636946.2U CN202120636946U CN215080042U CN 215080042 U CN215080042 U CN 215080042U CN 202120636946 U CN202120636946 U CN 202120636946U CN 215080042 U CN215080042 U CN 215080042U
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Abstract
The utility model relates to the technical field of dental instruments, and provides a dental three-purpose spray gun head, which comprises an adapter and a nozzle, wherein the adapter comprises a spray gun connecting piece and a nozzle connecting piece which are detachably connected, an inflow channel is arranged in the spray gun connecting piece, an air outlet channel and a liquid outlet channel are arranged in the nozzle connecting piece, a liquid inlet pipe is arranged in the inflow channel, one end of the liquid inlet pipe is directly connected to one end of the liquid outlet channel, and the other end of the liquid outlet channel is provided with a liquid outlet pipe; a gap is arranged between the outer wall of the liquid inlet pipe and the inner wall of the inflow channel, the gap forms an air inlet channel, an air inlet hole communicated with the air inlet channel is formed in the side wall of the inflow channel, the air inlet channel is communicated with the air outlet channel, and an air outlet pipe is arranged at the outlet of the air outlet channel. Adopt components of a whole that can function independently detachable construction, realize being connected of nozzle and spray gun pole, it is convenient to dismantle, and realizes the matching of nozzle and different spray guns through changing the different spray gun connecting piece of adapter, need not to be equipped with a plurality of spray gun heads, reduces the maintenance cost of equipment.
Description
Technical Field
The utility model relates to a dental instrument technical field especially relates to an adapter and dental three-purpose spray gun head.
Background
The dental spray gun is an indispensable cleaning tool in dental oral treatment, and is used for cleaning and drying the oral cavity by spraying liquid, spraying, jetting air and the like in the dental operation or treatment process. The spray gun head of the dental spray gun is connected with the gun rod of the spray gun, and liquid or gas is introduced. The existing spray gun head generally adopts an integrated structure, when different spray guns are required to be matched, the spray gun head needs to be integrally replaced, and the replacement cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: in order to overcome the defects in the prior art, the utility model provides an adapter and a dental three-purpose spray gun head.
The utility model provides a technical scheme that its technical problem will adopt is: an adapter comprises a spray gun connecting piece and a nozzle connecting piece which are detachably connected, wherein an inflow channel is arranged in the spray gun connecting piece, an air outlet channel and a liquid outlet channel are arranged in the nozzle connecting piece, a liquid inlet pipe is arranged in the inflow channel, one end of the liquid inlet pipe is directly connected to one end of the liquid outlet channel, and the other end of the liquid outlet channel is provided with a liquid outlet pipe; be equipped with the clearance between feed liquor pipe outer wall and the inflow passageway inner wall, the clearance forms inlet channel, and is equipped with the inlet port with inlet channel intercommunication on the lateral wall of inflow passageway, inlet channel and outlet channel intercommunication, and be equipped with the outlet duct in the export of outlet channel.
Further, the spray gun connecting piece comprises a first connecting end and a second connecting end, the outer diameter of the second connecting end is larger than that of the first connecting end, the first connecting end is used for being connected with the spray gun rod to introduce gas and liquid, the second connecting end is used for being connected with the spray nozzle connecting piece, and the end face of the second connecting end connected with the first connecting end is a concave conical surface; an annular groove is arranged on the outer wall of the first connecting end. The conical surface and the annular groove are used for being connected with the spray gun rod in a shape matching mode.
Furthermore, in order to adjust the pressure and the flow rate of the gas before the injection, a buffer cavity is arranged inside the second connecting end, and two ends of the buffer cavity are respectively communicated with the gas inlet channel and the gas outlet channel. The buffer cavity has a buffer function on one hand for the entering gas and also serves as a storage chamber for the gas on the other hand, and the uniformity and continuity of the ejected gas are ensured.
Further, in order to improve the effect of buffering, the cushion chamber includes toper portion and the cylindricality portion that connects gradually, toper portion and cylindricality portion set gradually along the air current direction. The gas entering the gas inlet pipe is gradually adjusted through the conical part and the cylindrical part, so that the gas flow instability caused by sudden pressure drop of the gas can be avoided.
Furthermore, in order to facilitate disassembly and assembly and positioning, the annular groove is a U-shaped groove, the side wall close to one side of the second connecting end is perpendicular to the axis of the first connecting end, and the side wall on the opposite side inclines towards the outer side of the annular groove. The vertically lateral wall can be used as a limit when the spray gun rod is inserted, and the inclined lateral wall is convenient for the adapter to be pulled out when the adapter is separated from the spray gun rod.
Furthermore, in order to ensure that the air outlet pipe and the liquid outlet pipe can be accurately and quickly inserted into the air outlet hole and the liquid outlet hole in the nozzle, the outer wall of the nozzle connecting piece is provided with a guide groove, and the shape of the guide groove is matched with that of a guide strip on the nozzle.
Preferably, the lance attachment and the nozzle attachment are removably connected by threads.
The utility model provides a three way spray gun head of dentistry, includes foretell adapter, still includes the nozzle, the nozzle includes integrated into one piece's connecting portion and injection portion, the inside connection chamber that is equipped with of connecting portion is equipped with the gib block that matches with the guide way on the connection intracavity wall, be equipped with a venthole and a drain hole along the axial in the injection portion, the venthole is pegged graft with the outlet duct, the drain hole is pegged graft with the drain pipe.
The utility model has the advantages that: the utility model provides a pair of adapter and three way spray gun head of dentistry adopts components of a whole that can function independently detachable construction, realizes the connection of nozzle and spray gun pole, and it is convenient to dismantle, and realizes the matching of nozzle and different spray guns through changing the spray gun connecting piece that the adapter is different, need not to be equipped with a plurality of spray gun heads, reduces the maintenance cost of equipment; meanwhile, the nozzle and the adapter are guided and aligned through the position marks, so that the method is quick and accurate, and the installation efficiency is improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the dental three-purpose spray gun head of the present invention.
Figure 2 is the perspective structure schematic diagram of the utility model discloses adapter.
Figure 3 is the side structure schematic diagram of the utility model discloses adapter.
Fig. 4 is a schematic sectional view of a-a in fig. 3.
Fig. 5 is a schematic sectional view of B-B in fig. 3.
In the figure: 1. spray gun connecting piece, 11, first connecting end, 12, second connecting end, 13, conical surface, 14, buffer cavity, 141, conical part, 142, cylindrical part, 15, annular groove, 16, air inlet hole, 17, air inlet channel, 18, internal thread, 2, nozzle connecting piece, 21, guide way, 22, air outlet channel, 23, liquid outlet channel, 24, external thread, 3, liquid inlet pipe, 4, liquid outlet pipe, 5, air outlet pipe, 6, nozzle, 61, connecting part, 62, spraying part, 63, liquid outlet hole, 64, air outlet hole, 65 and position mark.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1, the utility model discloses a three way spray gun head for dentistry, including adapter and nozzle 6, wherein, nozzle 6 includes integrated into one piece's connecting portion 61 and injection portion 62, and connecting portion 61 is inside to be equipped with the connection chamber, is equipped with the gib block (not shown in the figure) that matches with guide way 21 on the connection intracavity wall, is equipped with a venthole 64 and a play liquid hole 63 along the axial in the injection portion 62, and venthole 64 pegs graft with outlet duct 5, goes out liquid hole 63 and pegs graft with drain pipe 4. The outer wall of the connecting part 61 is provided with a position mark 65, and the position of the position mark 65 is opposite to the position of the guide strip. When being connected with the adapter, the guide strip on the connecting part 61 is matched with the guide groove 21 on the adapter, and is aligned through the recognition of the external position mark 65, so that the air outlet hole 64 and the liquid outlet hole 63 are aligned with the air outlet pipe 5 and the liquid outlet pipe 4 on the adapter.
As shown in fig. 2-5, the adapter includes a spray gun connector 1 and a nozzle connector 2 which are detachably connected, an inflow channel is arranged in the spray gun connector 1, an air outlet channel 22 and a liquid outlet channel 23 are arranged in the nozzle connector 2, a liquid inlet pipe 3 is arranged in the inflow channel, one end of the liquid inlet pipe 3 is directly connected to one end of the liquid outlet channel 23, and a liquid outlet pipe 4 is arranged at the other end of the liquid outlet channel 23; a gap is arranged between the outer wall of the liquid inlet pipe 3 and the inner wall of the inflow channel, the gap forms an air inlet channel 17, an air inlet hole 16 communicated with the air inlet channel 17 is arranged on the side wall of the inflow channel, the air inlet channel 17 is communicated with an air outlet channel 22, and an air outlet pipe 5 is arranged on the outlet of the air outlet channel 22. The number and the shape of the air inlet holes 16 are set according to actual requirements, in this embodiment, the air inlet holes 16 are 2 circular holes, and are symmetrically arranged on the side wall of the first connection end 11 along the radial direction. The number of the air outlet channels 22 can be also multiple according to the requirement, and the air outlet pipe 5 is arranged in each air outlet channel 22, so that the air injection is more uniform.
The spray gun connecting piece 1 comprises a first connecting end 11 and a second connecting end 12, the outer diameter of the second connecting end 12 is larger than that of the first connecting end 11, the first connecting end 11 is used for being connected with a spray gun rod to introduce gas and liquid, the second connecting end 12 is used for being connected with the spray nozzle connecting piece 2, and the end face of the second connecting end 12 connected with the first connecting end 11 is a concave conical surface 13; an annular groove 15 is arranged on the outer wall of the first connecting end 11. The interior of the second connecting end 12 is provided with a buffer cavity 14, and two ends of the buffer cavity 14 are respectively communicated with the air inlet channel 17 and the air outlet channel 22. The buffer cavity 14 comprises a conical part 141 and a cylindrical part 142 which are connected in sequence, the conical part 141 and the cylindrical part 142 are arranged in sequence along the airflow direction, and preferably, the outline of the axial section of the conical part 141 is approximate to a parabola. The annular groove 15 is a U-shaped groove, and the sidewall of one side close to the second connection end 12 is perpendicular to the axis of the first connection end 11, and the sidewall of the other opposite side is inclined to the outside of the annular groove 15, preferably, the inclination angle is 45 °. The outer wall of the nozzle connecting piece 2 is provided with a guide groove 21, and the shape of the guide groove 21 is matched with that of a guide strip on the nozzle 6. The spray gun connecting piece 1 and the nozzle connecting piece 2 are detachably connected through threads. In this embodiment, be equipped with internal thread 18 on the buffer chamber 14 inner wall of spray gun connecting piece 1 one end, be equipped with the external screw thread 24 that matches with internal thread 18 on the outer wall of nozzle connecting piece 2 one end, realize dismantling the connection through the cooperation of internal and external screw thread 24.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. An adapter, its characterized in that: the spray gun connecting piece is internally provided with an inflow channel, the nozzle connecting piece is internally provided with an air outlet channel and a liquid outlet channel, the inflow channel is internally provided with a liquid inlet pipe, one end of the liquid inlet pipe is directly connected to one end of the liquid outlet channel, and the other end of the liquid outlet channel is provided with a liquid outlet pipe; be equipped with the clearance between feed liquor pipe outer wall and the inflow passageway inner wall, the clearance forms inlet channel, and is equipped with the inlet port with inlet channel intercommunication on the lateral wall of inflow passageway, inlet channel and outlet channel intercommunication, and be equipped with the outlet duct in the export of outlet channel.
2. The adapter of claim 1, wherein: the spray gun connecting piece comprises a first connecting end and a second connecting end, the outer diameter of the second connecting end is larger than that of the first connecting end, the first connecting end is used for being connected with a spray gun rod and introducing gas and liquid, the second connecting end is used for being connected with the spray nozzle connecting piece, and the end face of the second connecting end, which is connected with the first connecting end, is a concave conical surface; an annular groove is arranged on the outer wall of the first connecting end.
3. The adapter of claim 2, wherein: the inside of second link is equipped with the cushion chamber, the cushion chamber both ends communicate with inlet channel and outlet channel respectively.
4. The adapter of claim 2, wherein: the cushion chamber includes toper portion and the cylindricality portion that connects gradually, toper portion and cylindricality portion set gradually along the air current direction.
5. The adapter of claim 2, wherein: the annular groove is a U-shaped groove, the side wall of one side close to the second connecting end is perpendicular to the axis of the first connecting end, and the side wall of the other opposite side inclines towards the outer side of the annular groove.
6. The adapter of claim 1, wherein: the outer wall of the nozzle connecting piece is provided with a guide groove, and the shape of the guide groove is matched with that of the guide strip on the nozzle.
7. The adapter of claim 1, wherein: the spray gun connecting piece and the nozzle connecting piece are detachably connected through threads.
8. A dental three-purpose spray gun head is characterized in that: the adapter of any one of claims 1-7, further comprising a nozzle, wherein the nozzle comprises a connecting portion and a spraying portion, the connecting portion is integrally formed, the connecting portion has a connecting cavity therein, the inner wall of the connecting cavity is provided with a guide strip matching with the guide groove, the spraying portion has an air outlet hole and a liquid outlet hole along the axial direction, the air outlet hole is connected with the air outlet pipe, and the liquid outlet hole is connected with the liquid outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120636946.2U CN215080042U (en) | 2021-03-26 | 2021-03-26 | Adapter and dental three-purpose spray gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120636946.2U CN215080042U (en) | 2021-03-26 | 2021-03-26 | Adapter and dental three-purpose spray gun head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215080042U true CN215080042U (en) | 2021-12-10 |
Family
ID=79346161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120636946.2U Active CN215080042U (en) | 2021-03-26 | 2021-03-26 | Adapter and dental three-purpose spray gun head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215080042U (en) |
-
2021
- 2021-03-26 CN CN202120636946.2U patent/CN215080042U/en active Active
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