CN213406356U - Subgingival sand blasting head - Google Patents
Subgingival sand blasting head Download PDFInfo
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- CN213406356U CN213406356U CN202021635867.1U CN202021635867U CN213406356U CN 213406356 U CN213406356 U CN 213406356U CN 202021635867 U CN202021635867 U CN 202021635867U CN 213406356 U CN213406356 U CN 213406356U
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- subgingival
- sealing ring
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Abstract
The utility model relates to a subgingival sand blasting head, which comprises a nozzle, a spray head and a sealing ring a, wherein a flow passage a and a flow passage b which are mutually independent are arranged in the nozzle, and a flow passage c and a flow passage d which are mutually independent are arranged in the spray head; the spray head is connected with the spray nozzle by adopting threads according to a preset angle, and the flow channel a is communicated with the flow channel c, and the flow channel b is communicated with the flow channel d; the sealing ring a is arranged between the nozzle and the spray head, and when the nozzle rotates in a preset angle range relative to the spray head, the substance flowing into the flow channel a from the flow channel c is separated from the substance flowing into the flow channel b from the flow channel d through the sealing ring a. The beneficial effects are that: the outlet angles of the flow channel a and the flow channel b on the nozzle can be adjusted by completely screwing and slightly loosening the threads, so that different use requirements can be better met; the sealing ring a separates the substance flowing into the flow channel a from the flow channel c and the substance flowing into the flow channel b from the flow channel d, so that the water and gas separation effect is achieved, and the problem of water seepage and sand blockage is effectively avoided.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a subgingival sandblast head.
Background
Dental blasting tooth cleaning belongs to an air polishing technology, and therapeutic sand powder is sprayed on the surface of a tooth by using compressed gas (usually air) to be sprayed and mixed with a sprayed liquid medium (usually water) together to play a role in cleaning the surface of the tooth. For example, can remove dental plaque, soft dirt, smoke stain, tea stain and the like on the surface of teeth, can effectively prevent periodontal disease and maintain the health of teeth.
The dental sandblasting tooth cleaning handle comprises a handle and a sandblasting head which can spray a sandblasting mixture and water. Because the sand used is generally water soluble, to prevent clogging, the air (containing sand) and water paths must be strictly isolated until they meet at the tooth surface after exiting the nozzle of the blasting head.
The sand blasting head comprises a nozzle and a spray head which are connected with each other, sand discharging and water outlet of the sand blasting head are fixed after the nozzle is connected with the spray head in the prior art, and fine adjustment can not be carried out according to use requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a subgingival sand blasting head is provided to overcome not enough among the above-mentioned prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a subgingival sand blasting head comprises a nozzle, a nozzle and a sealing ring a, wherein a flow channel a and a flow channel b which are mutually independent are arranged in the nozzle, and a flow channel c and a flow channel d which are mutually independent are arranged in the nozzle; the spray head is connected with the spray nozzle by adopting threads according to a preset angle, and the flow channel a is communicated with the flow channel c, and the flow channel b is communicated with the flow channel d; the sealing ring a is arranged between the nozzle and the spray head, and when the nozzle rotates in a preset angle range relative to the spray head, the substance flowing into the flow channel a from the flow channel c is separated from the substance flowing into the flow channel b from the flow channel d through the sealing ring a. This technical scheme is favorable to the user to carry out subgingival sandblast treatment according to different tooth positions and angle to the problem that the nozzle does not support angle modulation among the prior art at present is solved.
The utility model has the advantages that: the outlet angles of the flow channel a and the flow channel b on the nozzle can be adjusted by completely screwing and slightly loosening the threads, so that different use requirements can be better met; the sealing ring a separates the substance flowing into the flow channel a from the flow channel c and the substance flowing into the flow channel b from the flow channel d, so that the water and gas separation effect is achieved, and the problem of water seepage and sand blockage is effectively avoided.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the upper end part of the spray head is bent towards the side surface according to a preset angle, a threaded hole is formed in the end surface of the spray head, external threads are arranged on the outer circumferential surface of the tail end of the spray nozzle, and the external threads arranged at the tail end of the spray nozzle are screwed with the threaded hole.
Adopt above-mentioned further beneficial effect to do: the connection is firm and is not easy to loosen.
Further, the nozzle comprises a sealing ring b, wherein the sealing ring b is positioned between the outer circumferential surface of the tail end of the nozzle and the threaded hole.
Adopt above-mentioned further beneficial effect to do: the sealing performance between the nozzle and the spray head is improved.
Furthermore, a cylinder extends out of the tail end of the nozzle on the rotating axis of the nozzle, the inlet of the flow channel a is positioned on the end surface of the cylinder, one end of the cylinder, far away from the nozzle, is inserted into the flow channel c through the outlet of the flow channel c, and the sealing ring a is positioned between the outer circumferential surface of the cylinder and the inner wall of the flow channel c; the outlet of the flow channel d penetrates through the hole bottom of the threaded hole.
Adopt above-mentioned further beneficial effect to do: when the cylinder rotates in the flow channel c, the sealing ring a always keeps the sealing performance between the flow channel c and the sealing ring a, and when the cylinder rotates within a preset angle range, the flow channel a and the flow channel c are always communicated, and the flow channel b and the flow channel d are always communicated.
Furthermore, an annular groove a matched with the sealing ring a is arranged on the outer circumferential surface of the cylinder.
Adopt above-mentioned further beneficial effect to do: the sealing ring a is convenient to assemble and is prevented from sliding in the rotating process.
Further, the inlet end of the flow channel b extends to the cylinder and penetrates through the outer circumferential surface of the cylinder.
Adopt above-mentioned further beneficial effect to do: the flow channel b and the flow channel d can be better ensured to be communicated with each other all the time.
Further, the front end of the nozzle is of a flat structure.
Adopt above-mentioned further beneficial effect to do: the front end of the nozzle can be inserted into the gum.
Drawings
Fig. 1 is a schematic structural view of the subgingival sandblasting head of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is the structure diagram of the nozzle in the subgingival sand blasting head adjusted within the preset angle range.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the nozzle comprises a nozzle body 110, flow passages a, 120, flow passages b, 130, a cylinder 131, annular grooves a, 2, a spray head 210, flow passages c, 220, flow passages d, 230, threaded holes 3, sealing rings a, 4 and sealing rings b.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1 to 4, a subgingival sandblasting head comprises a nozzle 1, a nozzle 2 and a sealing ring a3, wherein a flow passage a110 and a flow passage b120 are arranged in the nozzle 1, the flow passage a110 and the flow passage b120 are independent from each other, i.e. do not communicate with each other, a flow passage c210 is arranged in the nozzle 2, and a flow passage d220 is arranged in the nozzle 2, wherein the flow passage c210 and the flow passage d220 are independent from each other, i.e. do not communicate with each other;
the combination of the flow channel a110 and the flow channel c210 is used for conveying the sand-gas mixture, and the combination of the flow channel b120 and the flow channel d220 is used for conveying water;
the nozzle 2 is connected with the nozzle 1 by threads according to a preset angle, and enables the flow passage a110 to be communicated with the flow passage c210 and the flow passage b120 to be communicated with the flow passage d 220;
the sealing ring a3 is disposed between the nozzle 1 and the head 2, and when the nozzle 1 rotates in a predetermined angle range with respect to the head 2, the material flowing from the flow path c210 into the flow path a110 is separated from the material flowing from the flow path d220 into the flow path b120 through the sealing ring a3, and in this embodiment, the predetermined angle range is ± 45 °.
Example 2
As shown in fig. 1 to 4, this embodiment is further optimized based on embodiment 1, and the specific scheme is as follows:
the upper end of the nozzle 2 is bent towards the side according to a preset angle, a threaded hole 230 is formed in the end face of the nozzle, an external thread is arranged on the outer circumferential surface of the tail end of the nozzle 1, and the external thread arranged at the tail end of the nozzle 1 is screwed with the threaded hole 230.
Of course, in the actual design process, it is not excluded to arrange the components in the reverse manner to that described above.
Example 3
As shown in fig. 1 to 4, this embodiment is further optimized based on embodiment 2, and the specific scheme is as follows:
the subgingival sand blasting head also comprises a sealing ring b4, wherein the sealing ring b4 is positioned between the outer circumferential surface of the tail end of the nozzle 1 and the threaded hole 230, so that the sealing performance between the nozzle 1 and the spray head 2 is improved.
Example 4
As shown in fig. 1 to 4, this embodiment is further optimized based on any one of embodiments 1 to 3, and the specific scheme is as follows:
the tail end of the nozzle 1 extends out of a cylinder 130 on the rotation axis of the nozzle 1, the inlet of the flow channel a110 is positioned on the end surface of the cylinder 130, one end of the cylinder 130, far away from the nozzle 1, is inserted into the flow channel c210 through the outlet of the flow channel c210, the sealing ring a3 is positioned between the outer circumferential surface of the cylinder 130 and the inner wall of the flow channel c210, when the cylinder 130 rotates in the flow channel c210, the sealing ring a3 always keeps the sealing performance between the two, when the cylinder rotates within a preset angle range, the flow channel a110 and the flow channel c210 are always communicated with each other, and the flow channel b120 and the flow channel d220 are always communicated; the outlet of the flow channel d220 penetrates the bottom of the threaded hole 230.
Example 5
As shown in fig. 1 to fig. 4, this embodiment is further optimized based on embodiment 4, and the specific scheme is as follows:
the outer circumferential surface of the cylinder 130 is provided with a ring groove a131 matching with the seal ring a 3.
Example 6
As shown in fig. 1 to 4, this embodiment is further optimized based on embodiment 4 or 5, and the specific scheme is as follows:
the inlet end of the flow path b120 extends to the cylinder 130 and penetrates the outer circumferential surface of the cylinder 130 and the end surface of the cylinder 130 remote from the nozzle 1.
Example 7
As shown in fig. 1 to 4, this embodiment is further optimized based on any one of embodiments 1 to 6, and the specific scheme is as follows:
the front end of the nozzle 1 is of a flat configuration.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. The subgingival sand blasting head is characterized by comprising a nozzle (1), a nozzle (2) and a sealing ring a (3), wherein a flow channel a (110) and a flow channel b (120) which are mutually independent are arranged in the nozzle (1), and a flow channel c (210) and a flow channel d (220) which are mutually independent are arranged in the nozzle (2); the spray head (2) is connected with the spray nozzle (1) by adopting threads according to a preset angle, so that the flow channel a (110) is communicated with the flow channel c (210), and the flow channel b (120) is communicated with the flow channel d (220); the sealing ring a (3) is arranged between the nozzle (1) and the spray head (2), and when the nozzle (1) rotates in a preset angle range relative to the spray head (2), the substance flowing into the flow channel a (110) from the flow channel c (210) is separated from the substance flowing into the flow channel b (120) from the flow channel d (220) through the sealing ring a (3).
2. The subgingival sandblasting head as claimed in claim 1, wherein the upper end of the nozzle (2) is bent towards the side according to a predetermined angle, and a threaded hole (230) is formed on the end face thereof, an external thread is provided on the outer circumferential surface of the tail end of the nozzle (1), and the external thread provided on the tail end of the nozzle (1) is screwed with the threaded hole (230).
3. The subgingival sandblasting head as claimed in claim 2, further comprising a seal b (4), wherein the seal b (4) is located between the outer circumferential surface of the trailing end of the nozzle (1) and the threaded hole (230).
4. A subgingival sandblasting head as claimed in claim 2, wherein the rear end of the nozzle (1) has a cylindrical post (130) extending out on the rotation axis thereof, the inlet of the flow channel a (110) is located on the end surface of the cylindrical post (130), the end of the cylindrical post (130) remote from the nozzle (1) is inserted into the flow channel c (210) through the outlet of the flow channel c (210), and the sealing ring a (3) is located between the outer circumferential surface of the cylindrical post (130) and the inner wall of the flow channel c (210); the outlet of the flow channel d (220) penetrates through the hole bottom of the threaded hole (230).
5. A subgingival sandblasting head as claimed in claim 4, characterized in that the outer circumferential surface of the cylinder (130) is provided with a ring groove a (131) matching the seal ring a (3).
6. The subgingival sandblasting head as claimed in claim 4, wherein the inlet end of the flow channel b (120) extends onto the cylinder (130) and through the outer circumferential surface of the cylinder (130).
7. A subgingival sandblasting head as claimed in any one of claims 1 to 6, characterized in that the front end of the nozzle (1) is of a flattened configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021635867.1U CN213406356U (en) | 2020-08-08 | 2020-08-08 | Subgingival sand blasting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021635867.1U CN213406356U (en) | 2020-08-08 | 2020-08-08 | Subgingival sand blasting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213406356U true CN213406356U (en) | 2021-06-11 |
Family
ID=76256393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021635867.1U Active CN213406356U (en) | 2020-08-08 | 2020-08-08 | Subgingival sand blasting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213406356U (en) |
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2020
- 2020-08-08 CN CN202021635867.1U patent/CN213406356U/en active Active
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