CN220459430U - Anti-suck-back mechanism of dental handpiece - Google Patents
Anti-suck-back mechanism of dental handpiece Download PDFInfo
- Publication number
- CN220459430U CN220459430U CN202321044310.4U CN202321044310U CN220459430U CN 220459430 U CN220459430 U CN 220459430U CN 202321044310 U CN202321044310 U CN 202321044310U CN 220459430 U CN220459430 U CN 220459430U
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- China
- Prior art keywords
- dental handpiece
- connecting pipe
- fixedly connected
- baffle
- suck
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- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000008280 blood Substances 0.000 abstract description 4
- 210000004369 blood Anatomy 0.000 abstract description 4
- 210000003296 saliva Anatomy 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 210000000214 mouth Anatomy 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to the technical field of dentistry, and provides a dental handpiece anti-suck-back mechanism, which comprises a dental handpiece main body, wherein an anti-suck-back component is arranged on the dental handpiece main body and comprises a connecting pipe, the connecting pipe is fixedly connected with the dental handpiece main body, the left end face of the connecting pipe is fixedly connected with a handpiece, the inner side of the connecting pipe is fixedly connected with a fixed plate, the outer side of the fixed plate is provided with a rotating block, a baffle can be pushed under the action of high-pressure gas in the use process, a baffle compression spring can open the connecting pipe, the high-pressure gas can enter the handpiece to work, the dental handpiece is closed after the use is finished, and the spring can drive the baffle to reset the connecting pipe under the action of the spring self elastic force, so that the suck-back phenomenon cannot occur, and the dental handpiece has the anti-suck-back mechanism in the use process, and the saliva or blood of a patient cannot flow back into the dental handpiece.
Description
Technical Field
The utility model relates to the technical field of dentistry, in particular to a dental handpiece anti-suck-back mechanism.
Background
The dental handpiece is a commonly used medical instrument for stomatology, the working principle of the dental handpiece is that an air compressor is utilized to compress air into high-pressure air to blow a turbine so as to drive a needle to rotate at a high speed, the dental handpiece is used for oral treatment, the dental handpiece can be divided into a high-speed handpiece and a low-speed handpiece according to the rotating speed and the structure, the high-speed handpiece utilizes the high-pressure air to drive a micro turbine in a handpiece to rotate, the low-speed handpiece is rotated by a gear, the low-speed handpiece can be usually regulated by a speed regulating structure, the dental handpiece is stopped in use, a suck-back phenomenon is easily generated due to a negative pressure principle, saliva or blood in the treatment process of a patient can flow back to an inner pipeline of the dental handpiece, the dental handpiece is difficult to clean, and cross infection is easy to happen when the dental handpiece is used again.
Therefore, the technical proposal specially provides a dental handpiece anti-suck-back mechanism to solve the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a dental handpiece anti-suck-back mechanism.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows: the dental handpiece prevents back suction mechanism, including dental handpiece main part, be equipped with in the dental handpiece main part and prevent back suction subassembly, prevent back suction subassembly includes the connecting pipe, connecting pipe and dental handpiece main part fixed connection, connecting pipe left end face fixedly connected with aircraft nose, the inboard fixedly connected with fixed plate of connecting pipe, the fixed plate outside is equipped with the turning block, turning block and fixed plate fixed connection, be equipped with the baffle on the turning block.
Preferably, the baffle is rotatably connected with the rotating block, and the baffle is slidably connected with the connecting pipe.
Preferably, a sealing gasket is arranged on the outer side of the baffle, the sealing gasket is fixedly connected with the baffle, and the sealing gasket is in sliding connection with the connecting pipe.
Preferably, the sealing gasket is made of rubber material.
Preferably, the baffle outside fixedly connected with first connecting block, first connecting block outside fixedly connected with spring, the other end fixedly connected with second connecting block of spring, second connecting block and connecting pipe fixed connection.
The beneficial effects of the utility model are as follows:
according to the dental handpiece, the connecting pipe, the fixing plate, the rotating block, the baffle, the sealing gasket, the first connecting block, the spring and the second connecting block are arranged, the baffle can be pushed under the action of high-pressure gas in the use process, the baffle can be compressed to open the connecting pipe, the high-pressure gas can enter the handpiece to work, the dental handpiece is closed after the use is finished, the spring can drive the baffle to reset to close the connecting pipe under the action of the spring self-elasticity, and the suction phenomenon can not occur, so that the dental handpiece is provided with the suction preventing mechanism in the use process, and the condition that saliva or blood of a patient flows back into the dental handpiece can not occur.
Drawings
In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the mounting structure of the baffle plate of the present utility model;
FIG. 3 is a schematic view of a left side cross-sectional structure of a connecting tube according to the present utility model;
reference numerals illustrate: 1. a dental handpiece body; 2. an anti-suck-back assembly; 21. a connecting pipe; 22. a fixing plate; 23. a rotating block; 24. a baffle plate; 25. a sealing gasket; 26. a first connection block; 27. a spring; 28. a second connection block; 3. a machine head.
Detailed Description
The present utility model will now be described in further detail with reference to the drawings and examples, wherein it is apparent that the examples described are only some, but not all, of the examples of the utility model. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without inventive effort are within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, and rear … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed by the utility model.
Referring to fig. 1-3 of the specification, the utility model provides a dental handpiece anti-suck-back mechanism, which comprises a dental handpiece main body 1, wherein an anti-suck-back component 2 is arranged on the dental handpiece main body 1, the anti-suck-back component 2 comprises a connecting pipe 21, the connecting pipe 21 is fixedly connected with the dental handpiece main body 1, the left end face of the connecting pipe 21 is fixedly connected with a handpiece 3, the inner side of the connecting pipe 21 is fixedly connected with a fixing plate 22, the outer side of the fixing plate 22 is provided with a rotating block 23, the rotating block 23 is fixedly connected with the fixing plate 22, a baffle 24 is arranged on the rotating block 23, the baffle 24 can push the baffle 24 under the action of high-pressure gas in the use process, the baffle 24 rotates to compress the spring 27 so as to open the connecting pipe 21, the high-pressure gas can enter the handpiece 3 to work and clean the oral cavity of a patient, after the use process is finished, the spring 27 can drive the baffle 24 to reset under the action of the spring 27 in the inside of the connecting pipe 21 so as to close the connecting pipe 21, and the suck-back phenomenon can not occur.
In one embodiment, referring to fig. 2 and 3 of the specification, a shutter 24 is rotatably connected to the rotating block 23, and the shutter 24 is slidably connected to the connecting tube 21 to close the connecting tube 21.
In an embodiment, referring to fig. 2 and 3 of the specification, a sealing gasket 25 is disposed on the outer side of the baffle 24, the sealing gasket 25 is fixedly connected with the baffle 24, and the sealing gasket 25 is slidably connected with the connecting pipe 21, so that the sealing performance can be improved.
In one embodiment, referring to fig. 2 and 3 of the specification, the gasket 25 is made of a rubber material, so that the sealing effect is good.
In an embodiment, referring to fig. 2 of the specification, a first connecting block 26 is fixedly connected to the outer side of the baffle 24, a spring 27 is fixedly connected to the outer side of the first connecting block 26, a second connecting block 28 is fixedly connected to the other end of the spring 27, and the second connecting block 28 is fixedly connected to the connecting pipe 21, so that the baffle 24 can be driven to reset.
When the dental handpiece is used, the baffle 24 can be pushed under the action of high-pressure gas, the baffle 24 rotates to compress the spring 27, the connecting pipe 21 can be opened, the high-pressure gas can enter the handpiece 3 to work and clean the oral cavity of a patient, after the dental handpiece is used, the dental handpiece is closed, under the action of the self elastic force of the spring 27 in the connecting pipe 21, the spring 27 can drive the baffle 24 to reset, the connecting pipe 21 can be closed, and the back suction phenomenon can not occur, so that the dental handpiece is provided with an anti-back suction mechanism in the use process, and the condition that saliva or blood of the patient flows back into the dental handpiece can not occur.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a dental handpiece prevents back suction mechanism, includes dental handpiece main part (1), its characterized in that, be equipped with on dental handpiece main part (1) and prevent back suction subassembly (2), prevent back suction subassembly (2) including connecting pipe (21), connecting pipe (21) and dental handpiece main part (1) fixed connection, connecting pipe (21) left end face fixedly connected with aircraft nose (3), connecting pipe (21) inboard fixedly connected with fixed plate (22), the fixed plate (22) outside is equipped with rotating block (23), rotating block (23) and fixed plate (22) fixed connection, be equipped with baffle (24) on rotating block (23).
2. The dental handpiece anti-suck-back mechanism according to claim 1, wherein the baffle (24) is rotatably connected with the rotating block (23), and the baffle (24) is slidably connected with the connecting pipe (21).
3. The dental handpiece anti-suck-back mechanism according to claim 1, wherein a sealing gasket (25) is arranged on the outer side of the baffle plate (24), the sealing gasket (25) is fixedly connected with the baffle plate (24), and the sealing gasket (25) is slidably connected with the connecting pipe (21).
4. A dental handpiece anti-suck back mechanism according to claim 3, characterized in that the sealing gasket (25) is made of a rubber material.
5. The dental handpiece anti-suck-back mechanism according to claim 1, wherein a first connecting block (26) is fixedly connected to the outer side of the baffle plate (24), a spring (27) is fixedly connected to the outer side of the first connecting block (26), a second connecting block (28) is fixedly connected to the other end of the spring (27), and the second connecting block (28) is fixedly connected with the connecting pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044310.4U CN220459430U (en) | 2023-05-05 | 2023-05-05 | Anti-suck-back mechanism of dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044310.4U CN220459430U (en) | 2023-05-05 | 2023-05-05 | Anti-suck-back mechanism of dental handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220459430U true CN220459430U (en) | 2024-02-09 |
Family
ID=89802761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321044310.4U Active CN220459430U (en) | 2023-05-05 | 2023-05-05 | Anti-suck-back mechanism of dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220459430U (en) |
-
2023
- 2023-05-05 CN CN202321044310.4U patent/CN220459430U/en active Active
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