CN218247468U - Butt joint and sand blasting dredger - Google Patents
Butt joint and sand blasting dredger Download PDFInfo
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- CN218247468U CN218247468U CN202222533087.1U CN202222533087U CN218247468U CN 218247468 U CN218247468 U CN 218247468U CN 202222533087 U CN202222533087 U CN 202222533087U CN 218247468 U CN218247468 U CN 218247468U
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- butt joint
- air inlet
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- hole
- inlet hole
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Abstract
The embodiment of the utility model provides a butt joint and sandblast dredge, wherein the sandblast dredge includes this butt joint, the butt joint includes the butt joint body, this internal inlet port that is provided with of butt joint, the end of giving vent to anger of inlet port is used for supplying the nozzle of sandblast equipment to insert wherein, and the interference fit of inlet port and nozzle, because the inlet port can realize interference fit with the nozzle, after interference fit between inlet port and nozzle, can guarantee inlet port and nozzle complex joint strength and gas tightness, and then be connected with the nozzle is stable through the butt joint, can effectively reduce the gas leakage condition when blowing to the nozzle through the butt joint.
Description
Technical Field
The utility model relates to a dental medical instrument technical field particularly, relates to a butt joint and sandblast dredge.
Background
The dental sand blasting equipment consists of a powder tank and a sand blasting handle. The sand powder in the powder tank is sent into a sand outlet pipeline inside the sand blasting handle under the action of high-pressure air flow and is finally sprayed out from a nozzle at the head of the sand blasting handle, so that the teeth are cleaned. Due to the limitation of size and the like, the pipe diameter of the sand outlet pipeline of the sand blasting handle is very small (the pipe diameter is smaller as the sand outlet pipeline is closer to the nozzle). When the working environment is relatively humid, the sand powder can form solid crystals due to mixing with water and air, and therefore the sand outlet pipeline is blocked.
In order to dredge a sand outlet pipeline, at present, an air pipe connected with a high-pressure air source is directly butted on a nozzle, but the air leakage condition is very serious because the nozzle is not matched with the air pipe in size.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a butt joint and sandblast dredge, wherein the sandblast dredge includes this butt joint, and the butt joint includes the butt joint body, this internal inlet port that is provided with of butt joint, and the end of giving vent to anger of inlet port is used for supplying the nozzle of sandblast equipment to insert wherein to inlet port and nozzle interference fit. Because the air inlet hole can realize interference fit with the nozzle, after the interference fit between the air inlet hole and the nozzle, the connection strength and the air tightness of the air inlet hole and the nozzle can be ensured, and then the air leakage condition when the nozzle is blown through the butt joint can be effectively reduced by stably connecting the butt joint with the nozzle.
The embodiment of the utility model is realized like this:
in a first aspect, the present invention provides a butt joint, including:
the butt joint body is internally provided with an air inlet;
the air outlet end of the air inlet hole is used for inserting a nozzle of sand blasting equipment into the air inlet hole, and the air inlet hole is in interference fit with the nozzle.
In an alternative embodiment, the air outlet end of the air inlet hole is provided with a conical chamfer, and the distance between the conical chamfer and the axis of the air inlet hole in the nozzle insertion direction is gradually reduced.
In an optional embodiment, the butt joint body is further provided with an annular butt joint groove coaxial with the air inlet hole, and the annular butt joint groove is used for inserting a protrusion on a tail wire of the sand blasting equipment;
the air inlet end of the air inlet hole is positioned in the inner ring of the annular butt joint groove, and the opening of the annular butt joint groove and the air outlet end of the air inlet hole face the same direction.
In an optional embodiment, an inner concave hole is arranged at the end part of the butt joint body, and the inner concave hole is adjacent to and communicated with the air outlet end of the air inlet hole;
the annular butt-joint groove is arranged on the bottom surface of the inner concave hole.
In an alternative embodiment, the inner concave aperture is coaxial with the inlet aperture.
In an alternative embodiment, the annular abutment groove is coaxial with the inner recess, and the diameter of the outer ring of the annular abutment groove is the same as the inner diameter of the inner recess.
In an alternative embodiment, the joint body is resilient.
In an optional embodiment, the docking head body is further provided with an assembly hole for connecting with an external device, and the assembly hole is arranged at one end of the air inlet hole and is coaxial with the air inlet hole.
In an optional embodiment, the inner side wall of the assembly hole is provided with an annular clamping groove, and the annular clamping groove is used for clamping with an external device.
In a second aspect, the present invention provides a sandblasting dredge, including a sandblasting dredge body and any one of the butt joints of the aforementioned embodiments.
The embodiment of the utility model provides a beneficial effect is: the embodiment of the utility model provides a pair of butt joint and sandblast dredge, wherein the sandblast dredge includes this butt joint, and the butt joint includes the butt joint body, this internal inlet port that is provided with of butt joint, and the end of giving vent to anger of inlet port is used for supplying the nozzle of sand blasting equipment to insert wherein to inlet port and nozzle interference fit. Because the air inlet hole can realize interference fit with the nozzle, after the interference fit between the air inlet hole and the nozzle, the connection strength and the air tightness of the air inlet hole and the nozzle can be ensured, and further, the air leakage condition when the butt joint blows to the nozzle can be effectively reduced through the stable connection of the butt joint and the nozzle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a butt joint according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a butt joint according to an embodiment of the present invention;
fig. 3 is a partial cross-sectional view of a nozzle provided in accordance with an embodiment of the present invention;
fig. 4 is a partial cross-sectional view of a tail wire provided by an embodiment of the present invention;
fig. 5 is an assembly view of the docking head and the sandblasting dredge body provided by the embodiment of the present invention.
1-butt joint; 10-a butt joint body; 11-assembly holes; 111-ring card slot; 12-an air intake; 13-conical chamfering; 14-an annular docking slot; 15-an inward concave hole; 2-a nozzle; 3-tail; 4-sand blasting dredger body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The dental sand blasting equipment consists of a powder tank and a sand blasting handle. The sand powder in the powder tank is sent into a sand outlet pipeline inside the sand blasting handle under the action of high-pressure air flow and is finally sprayed out from a nozzle at the head of the sand blasting handle, so that the teeth are cleaned. Due to the limitation of size and the like, the pipe diameter of the sand outlet pipeline of the sand blasting handle is very small (the pipe diameter is smaller as the sand outlet pipeline is closer to the nozzle). When the working environment is relatively humid, the sand powder can form solid crystals due to mixing with water and air, and therefore the sand outlet pipeline is blocked.
The inventor researches and finds that high-pressure air pipes used for spraying are directly butted to the nozzles for dredging the sand outlet pipelines, but the air leakage condition is very serious due to the fact that the sizes of the nozzles and the air pipes are not matched.
To the above problem, the embodiment of the utility model provides a butt joint and sandblast dredge, wherein the sandblast dredge includes this butt joint, the butt joint includes the butt joint body, this internal inlet port that is provided with of butt joint, the inlet port is used for supplying the nozzle of sandblast equipment to insert wherein, and the interference fit of inlet port and nozzle, because the inlet port can realize interference fit with the nozzle, after interference fit between inlet port and nozzle, can guarantee inlet port and nozzle complex joint strength and gas tightness, and then be connected through butt joint and nozzle stability, can effectively reduce the gas leakage condition when blowing to the nozzle through the butt joint.
The specific conditions of the butt joint and the corresponding technical effects thereof provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1-3, a butt joint 1 according to an embodiment of the present invention includes a butt joint body 10, and a fitting hole 11 and an air inlet 12 are disposed in the butt joint body 10 and are connected to each other.
Wherein pilot hole 11 is used for being connected with external device, it should be said that, external device is sandblast dredge body 4, and it is easy to understand, sandblast dredge body 4 have be used for with the outside air inlet nozzle that provides high-pressure gas's trachea is connected, the air inlet nozzle can communicate with pilot hole 11 and then communicate with inlet port 12. The air inlet holes 12 are used for inserting the nozzle 2 of the sand blasting apparatus therein, and it is easily understood that the nozzle 2 is inserted from the air inlet end of the air inlet holes and is in interference fit with the air inlet holes when assembled.
It is easy to understand, after nozzle 2 inserts inlet port 12, with inlet port 12 interference fit, because nozzle 2 is interference fit with inlet port 12, can guarantee the assembly strength between inlet port 12 and the nozzle 2 to make stable the installing in inlet port 12 of nozzle 2, can effectively reduce the gas leakage condition when blowing to nozzle 2 through butt joint 1.
Further, the air outlet end of the air inlet hole 12 is provided with a tapered chamfer 13, and the distance between the tapered chamfer 13 and the axis of the air inlet hole in the insertion direction of the nozzle 2 is gradually reduced. It will be readily appreciated that the tapered chamfer 13 provides a guide in the direction of approach to the inlet aperture 12, so that the nozzle 2 is more conveniently inserted into the inlet aperture 12 as it is inserted into the inlet aperture 12, and progressively closer to the inlet aperture 12, due to the guide provided by the tapered chamfer 13.
Referring to fig. 1, fig. 2 and fig. 4, further, in the present embodiment, the docking head body 10 is further provided with an annular docking groove 14 coaxial with the air inlet 12, and the annular docking groove 14 is used for inserting a protrusion on the tail wire 3 of the blasting equipment therein, in other words, the protrusion on the tail wire 3 of the blasting equipment can be inserted into the annular docking groove 14. Further, the air inlet end of the air inlet hole 12 is located within the inner ring of the annular butt-joint groove 14, and the opening of the annular butt-joint groove 14 is in the same direction as the air outlet end of the air inlet hole 12.
The annular docking slot 14 is located on the same side of the docking head body 10 as the air inlet 12 and corresponds to the projections on the nozzle 2 and the tail 3 of the blasting apparatus, respectively. The butt joint body 10 is butt jointed with the nozzle 2 or the tail wire 3, so that high-pressure airflow flows into the nozzle 2 or the tail wire 3 through the air inlet hole 12 on the butt joint body, and the nozzle 2 or the tail wire 3 is dredged. Referring to fig. 4, it should be noted that the protrusion of the tail 3 is a protrusion of the top of the tail 3.
In this embodiment, the annular butt-joint groove 14 and the tail wire 3 are in interference fit, so as to ensure the connection strength and the sealing property of the annular butt-joint groove 14 and the tail wire 3, and reduce the occurrence of gas leakage caused by introducing high-pressure gas after connection.
Further, an inner concave hole 15 is provided at an end portion of the butt joint body 10, the inner concave hole 15 is adjacent to and communicated with an air outlet end of the air inlet hole 12, and the annular butt joint groove 14 is provided on a bottom surface of the inner concave hole 15. In other words, the side of the butt joint body 10 close to the air outlet end of the air inlet hole 12 is provided with an inner concave hole 15 communicated with the air outlet end of the air inlet hole 12, the bottom surface of the inner concave hole 15 can be understood as the side wall of the inner concave hole 15 except the curved side wall, and the end surface of the inner concave hole 15 far away from the air inlet hole 12 is provided with an annular butt joint groove 14.
Further, in this embodiment, the concave hole 15 is coaxial with the air inlet hole 12, so as to ensure that the high-pressure air entering from the side of the air inlet hole 12 far away from the air outlet end can completely pass through the concave hole 15.
Further, in the present embodiment, the annular abutment groove 14 is coaxial with the inner recess 15, and the outer ring diameter of the annular abutment groove 14 is the same as the inner diameter of the inner recess 15. In other words, since the annular docking groove 14 is coaxial with the inner concave hole 15, and the inner concave hole 15 is coaxial with the air inlet 12, when the protrusion on the tail wire 3 is inserted into the annular docking groove 14, the protrusion can completely receive high-pressure air introduced from the air inlet 12, so as to effectively dredge sand blocked in the tail wire 3.
Further, the abutment body 10 in this embodiment is resilient, in other words the abutment body 10 is made of a resilient material. Specifically, the butt joint body 10 is made of materials such as silica gel or rubber, and it can be understood that, since the butt joint 1 is made of materials such as silica gel or rubber having certain elasticity, the butt joint 1 has certain elasticity, when the air inlet hole 12 and the annular butt joint groove 14 are respectively in interference fit with the nozzle 2 and the tail wire 3, the side wall of the air inlet hole 12 can reversely provide a coating force to the nozzle 2, and the connection strength and the sealing performance between the nozzle 2 and the air inlet hole 12 are further enhanced. Similarly, the inner side wall of the annular butt-joint groove 14 can also reversely provide a cladding force for the tail wire 3, so that the connection strength and the sealing performance of the annular butt-joint groove 14 and the tail wire 3 are further enhanced, and the air leakage condition of the butt-joint head 1 during installation of the nozzle 2 or the tail wire 3 is further greatly reduced.
Referring to fig. 1, 2 and 5, it is easy to understand that the docking head body 10 is connected to an external device for supplying high-pressure gas through a mounting hole 11 formed therein for connecting to an external device, specifically, the mounting hole 11 is used for connecting to the sandblasting dredger body 4, and the sandblasting dredger body 4 is used for connecting to an external pipeline for supplying high-pressure gas, so that the high-pressure gas flows into the mounting hole 11 through the sandblasting dredger body 4, enters the nozzle 2 or the tail line 3 through the air inlet hole 12, and blows sand grains out of the nozzle 2 or the tail line 3, thereby dredging the nozzle 2 or the tail line 3.
Further, in this embodiment, the pilot hole 11 is coaxial with the inlet port 12, because the pilot hole 11 is coaxial with the inlet port 12, the effectual resistance that reduces the gas flow can guarantee from the high-pressure gas that the pilot hole 11 blew off can more efficient get into in the inlet port 12, and then guaranteed the efficiency to the inside mediation of nozzle 2.
Of course, in other embodiments, the coaxial arrangement of the fitting hole 11 and the air inlet hole 12 is not limited, and the fitting hole 11 and the air inlet hole 12 may also be arranged in a different axis, as long as it can be ensured that the fitting hole 11 for installing the sandblast dredger can smoothly flow into the air inlet hole 12 after receiving the air blown out from the air pipe.
In this embodiment, the inner side wall of the assembly hole 11 is provided with a ring-shaped slot 111, and the ring-shaped slot 111 is used for being clamped with an external device.
Of course, in some other embodiments, the joint 1 is not limited to be clamped with the sandblasting dredger body 4, and other connection manners may be adopted, and the connection manner of the joint 1 and the sandblasting dredger body 4 is not particularly limited.
The embodiment also provides a sandblast dredge, which comprises a sandblast dredge body 4 and the butt joint 1, wherein the sandblast dredge body 4 is connected with the assembly hole 11, and specifically, the sandblast dredge body 4 is connected with the annular clamping groove 111 in the assembly hole 11.
To sum up, the utility model provides a pair of dock 1 and sandblast dredge, wherein the sandblast dredge includes this dock 1, dock 1 includes dock body 10, be provided with the pilot hole 11 that feeds through in proper order in the dock body 10, inlet port 12 and annular butt-joint groove 14, pilot hole 11 is used for being connected with sandblast dredge body 4, inlet port 12 is used for installing sandblast equipment's nozzle 2, inlet port 12 and nozzle 2's interference fit, because inlet port 12 can realize interference fit with nozzle 2, after interference fit between inlet port and nozzle 2, can guarantee inlet port and nozzle 2 complex joint strength and gas tightness, and then through dock 1 with nozzle 2 stable being connected, can effectively reduce the gas leakage condition when blowing to nozzle 2 through dock 1, annular butt-joint groove 14 is used for supplying and inserts with the arch on the tail-wire 3. In order to guarantee tail-wire 3 and annular butt joint groove 14's joint strength, when tail-wire 3 and annular butt joint groove 14 joint, can let in the tail-wire 3 through the gas that the trachea blew off, in order to dredge tail-wire 3 and handle, and the very big gas leakage condition when having reduced annular butt joint groove 14 and tail-wire 3 assembly, and, butt joint 1 possesses certain elasticity, from this when inlet port 12 and annular butt joint groove 14 are connected in nozzle 2 and tail-wire 3 respectively, the lateral wall of inlet port 12 can be reverse gives nozzle 2 a cladding power, further strengthen nozzle 2 and inlet port 12's joint strength and leakproofness. Similarly, the inner side wall of the annular butt joint groove 14 can reversely provide a coating force for the tail wire 3, so that the connection strength and the sealing performance of the annular butt joint groove 14 and the tail wire 3 are further enhanced, the air leakage condition of the butt joint 1 during installation of the nozzle 2 or the tail wire 3 is further greatly reduced, the butt joint 1 can be connected with the nozzle 2 and the tail wire 3, and the adaptability is stronger.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A butt joint, comprising:
the butt joint comprises a butt joint body, wherein an air inlet hole is formed in the butt joint body;
the air outlet end of the air inlet hole is used for inserting a nozzle of sand blasting equipment into the air inlet hole, and the air inlet hole is in interference fit with the nozzle.
2. A docking head as claimed in claim 1 wherein:
the air outlet end of the air inlet hole is provided with a conical chamfer, and the distance between the conical chamfer and the axis of the air inlet hole in the insertion direction of the nozzle is gradually reduced.
3. A docking head as claimed in claim 1 wherein:
the butt joint body is also provided with an annular butt joint groove coaxial with the air inlet hole, and the annular butt joint groove is used for inserting a bulge on the tail wire of the sand blasting equipment into the annular butt joint groove;
the air inlet end of the air inlet hole is located in the inner ring of the annular butt joint groove, and the opening of the annular butt joint groove and the air outlet end of the air inlet hole face the same direction.
4. A docking head as claimed in claim 3 wherein:
an inner concave hole is formed in the end part of the butt joint body, and the inner concave hole is adjacent to and communicated with the air outlet end of the air inlet hole;
the annular butt-joint groove is arranged on the bottom surface of the inner concave hole.
5. A docking head as claimed in claim 4 wherein:
the concave hole is coaxial with the air inlet hole.
6. A docking head as claimed in claim 4 wherein:
the annular butt joint groove is coaxial with the inner concave hole, and the diameter of the outer ring of the annular butt joint groove is the same as the inner diameter of the inner concave hole.
7. A docking head as claimed in claim 1 wherein:
the butt joint body has elasticity.
8. A docking head as claimed in claim 1 wherein:
the butt joint body is further provided with an assembling hole used for being connected with an external device, and the assembling hole is arranged at one end of the air inlet hole and is coaxial with the air inlet hole.
9. A docking head as claimed in claim 8 wherein:
annular clamping groove has been seted up to the pilot hole inside wall, annular clamping groove be used for with the external device joint.
10. A blast dredger comprising a blast dredger body and the docking head of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222533087.1U CN218247468U (en) | 2022-09-23 | 2022-09-23 | Butt joint and sand blasting dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222533087.1U CN218247468U (en) | 2022-09-23 | 2022-09-23 | Butt joint and sand blasting dredger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218247468U true CN218247468U (en) | 2023-01-10 |
Family
ID=84749410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222533087.1U Active CN218247468U (en) | 2022-09-23 | 2022-09-23 | Butt joint and sand blasting dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218247468U (en) |
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2022
- 2022-09-23 CN CN202222533087.1U patent/CN218247468U/en active Active
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