Dental handpiece with pressure relief function
By setting pressure relief components in the handle of the dental mobile phone, including pressure relief tube, reset part and movable block, the problem of overload rotation of the needle caused by excessive airflow pressure is solved, the service life and safety of the equipment are improved, and the service life and safety of the equipment are achieved. Quick replenishment function of airflow.
Patent Information
- Application Number
- CN202420849891.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The dental phones on the market lack pressure relief function, which leads to excessive speed of the needle when the airflow pressure is too high, which can easily cause breakage and damage to the movement, affecting service life and safety.
A dental mobile phone with pressure relief function was designed. The handle is equipped with pressure relief components, including pressure relief tube, reset part and movable block. The pressure relief and replenishment of air flow through the pressure relief cavity and the delivery pipe to avoid overloading the needle. Load rotation.
It effectively avoids the problems of needle breakage and movement speed, improves service life and patient safety, and quickly replenishes gas when needed to increase needle speed.
Smart Images
Figure CN222237851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dental equipment, in particular to a dental handpiece with a pressure relief function. Background Art
[0002] Dental handpieces, also known as dental drills, are currently commonly used pneumatic turbine high-speed dental drills, including a handle, a handpiece at one end of the handle, a pipeline located in the handle, a joint at the other end of the handle, a spindle arranged in the handpiece, a turbine mounted on the spindle, and a needle located outside the handpiece and connected to the spindle through a chuck; when in use, the pipeline in the handle is connected to the dental comprehensive treatment instrument through a joint, and the high-speed airflow input through the pipeline drives the turbine to rotate and drives the needle to rotate at high speed;
[0003] At present, most of the handpieces on the market do not have a pressure relief function. When the airflow pressure of the handpiece is too large, the needle on the handpiece will rotate too fast. If it is often overloaded, it will inevitably affect the service life of the dental handpiece and the safety of the use of the dental handpiece, endangering the safety of dental medical treatment. Utility Model Content
[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide a dental handle with high safety and pressure relief function.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A dental handpiece with a pressure relief function comprises a handle, a handpiece and a needle, wherein the handpiece is connected to one end of the handle, the output end of the handpiece is transmission-connected to the needle, the other end of the handle is respectively provided with an air inlet and an air outlet, the air inlet and the air outlet are correspondingly provided with an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both connected to the handpiece, and a pressure relief component is arranged inside the handle; the pressure relief component comprises a pressure relief pipe, a reset piece and a movable block, the pressure relief pipe is connected to the air inlet pipe, a pressure relief chamber is arranged inside the pressure relief pipe, the reset piece is arranged inside the pressure relief chamber, the movable block is connected to the reset piece, and the movable block can make a reciprocating motion in the pressure relief chamber.
[0007] Preferably, in the above-mentioned dental mobile phone with pressure relief function, the reset member includes a reset spring and a limit seat, the limit seat is arranged inside the pressure relief chamber, one end of the reset spring is connected to the limit seat, and the other end of the reset spring is connected to the movable block.
[0008] Preferably, in the above-mentioned dental handpiece with pressure relief function, the pressure relief component further comprises a delivery pipe, one end of the delivery pipe is connected to the pressure relief pipe, and the other end of the delivery pipe is connected to the air intake pipe.
[0009] Preferably, in the above-mentioned dental handpiece with pressure relief function, the movable block is adapted to the pressure relief chamber.
[0010] Preferably, in the above-mentioned dental handpiece with pressure relief function, a rotating needle sleeve is provided at the output end of the handpiece, and the needle is detachably connected to the rotating needle sleeve.
[0011] Beneficial effects of the utility model:
[0012] (1) When the high-speed airflow pressure is too high, the speed of the needle on the handpiece will be too high, and the needle will be overloaded for a long time, which may easily cause the needle to break. Therefore, when the airflow pressure in the dental handpiece is too high, the airflow is relieved through the pressure relief component inside the handle. This design can effectively avoid the problem of needle breakage, excessive movement speed, and bearing damage, thereby increasing the service life and improving the patient's personal safety.
[0013] (2) The pressure relief assembly consists of a pressure relief pipe, a reset member and a movable block. When the airflow pressure of the handpiece is too large, the airflow will give pressure to the movable block, causing the movable block to move backward, so that the remaining airflow can flow into the pressure relief pipe to achieve the purpose of pressure relief. In addition, a reset member is provided inside the pressure relief chamber. Since the reset member is connected to the movable block, the movable block can move back and forth in the pressure relief chamber under the reaction force of the reset member. When the needle speed needs to be increased, the remaining gas collected by the pressure relief pipe can be quickly replenished into the handpiece, thereby increasing the needle speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the utility model;
[0015] Figure 2 A cross-sectional view of one embodiment of the utility model;
[0016] Figure 3 for Figure 2 A partial enlarged view of the AA point in the middle.
[0017] Among them: it includes: a handle 11, a handpiece 12, a needle 13, an air inlet 14, an air outlet 15, an air outlet pipe 16, a pressure relief component 17, a pressure relief pipe 18, a reset member 19, a movable block 20, a pressure relief chamber 21, a reset spring 22, a limit seat 23, a delivery pipe 24, and a rotating needle sleeve 25. DETAILED DESCRIPTION
[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "axial", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] In the description of the present invention, unless otherwise specified, “plurality” means two or more.
[0022] like Figures 1 to 3As shown, a dental handpiece with a pressure relief function comprises a handle 11, a handpiece 12 and a needle 13, wherein the handpiece 12 is connected to one end of the handle 11, and the output end of the handpiece 12 is drivingly connected to the needle 13, and the other end of the handle 11 is respectively provided with an air inlet hole 14 and an air outlet hole 15, and the air inlet hole 14 and the air outlet hole 15 are correspondingly provided with an air inlet pipe and an air outlet pipe 16, and the air inlet pipe and the air outlet pipe 16 are both connected with the handpiece 12, and a pressure relief component 17 is arranged inside the handle 11; the pressure relief component 17 comprises a pressure relief pipe 18, a reset member 19 and a movable block 20, the pressure relief pipe 18 is connected with the air inlet pipe 16, a pressure relief chamber 21 is arranged inside the pressure relief pipe 18, and the reset member 19 is arranged inside the pressure relief chamber 21, The movable block 20 is connected to the reset member 19, and the movable block 20 can make a reciprocating motion in the pressure relief chamber 21; the high-speed airflow drives the head 12 through the air inlet pipe 16 to drive the needle 13 to rotate, so that the patient's teeth can be treated. When the high-speed airflow pressure is too high, it will cause the needle 13 on the head 12 to rotate too fast, and the needle 13 will rotate overloaded for a long time, which may easily cause the needle 13 to break. Therefore, when the airflow pressure in the dental handpiece is too high, the airflow is relieved through the pressure relief component 17 provided inside the handle 11. Such a design can effectively avoid the problem of needle 13 breakage, excessive movement speed, and bearing damage, thereby improving the service life and the personal safety of the patient.
[0023] It is worth mentioning that the pressure relief assembly 17 is composed of a pressure relief pipe 18, a reset member 19 and a movable block 20. When the airflow pressure of the machine head 12 is too large, the airflow will give pressure to the movable block 20, causing the movable block 20 to move backward, so that the remaining airflow can flow into the pressure relief pipe 18 to achieve the purpose of pressure relief. In addition, a reset member 19 is provided inside the pressure relief chamber 21. Since the reset member 19 is connected to the movable block 20, under the reaction force of the reset member 19, the movable block 20 can move back and forth in the pressure relief chamber 21. When it is necessary to increase the rotation speed of the needle 13, the remaining gas collected by the pressure relief pipe 18 can be quickly replenished into the machine head 12, thereby increasing the rotation speed of the needle 13.
[0024] The dental mobile phone with pressure relief function in this embodiment, wherein the reset member 19 includes a reset spring 22 and a limit seat 23, the limit seat 23 is arranged inside the pressure relief chamber 21, one end of the reset spring 22 is connected to the limit seat 23, and the other end of the reset spring 22 is connected to the movable block 20; under the reverse force of the reset spring 22, the movable block 20 can perform reciprocating pressure relief work inside the pressure relief chamber 21; and because the limit seat 23 is connected to the reset spring 22, such a design can avoid the problem of the reset spring 22 falling off.
[0025] In some embodiments, the dental handpiece has a pressure relief function, wherein the pressure relief component 17 also includes a delivery pipe 24, one end of the delivery pipe 24 is connected to the pressure relief pipe 18, and the other end of the delivery pipe 24 is connected to the air intake pipe 16; such a design makes it possible to better relieve the pressure of the airflow while also smoothly delivering the airflow to the handpiece 12.
[0026] In the dental handpiece with pressure relief function in this embodiment, the movable block 20 is adapted to the pressure relief chamber 21 ; such a design allows the movable block 20 to move back and forth in the pressure relief chamber 21 more smoothly, and also ensures the sealing of the entire pressure relief chamber 21 .
[0027] In the dental handpiece with pressure relief function in this embodiment, a rotating needle sleeve 25 is provided at the output end of the handpiece 12, and the needle 13 is detachably connected to the rotating needle sleeve 25; such a design facilitates the disassembly and replacement of the needle 13.
[0028] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.
Claims
1. A dental handpiece with a pressure relief function, comprising a handle, a handpiece and a needle, characterized in that: The handpiece is connected to one end of the handle, the output end of the handpiece is transmission-connected to the needle, the other end of the handle is provided with an air inlet and an air outlet, the air inlet and the air outlet are provided with an air inlet pipe and an air outlet pipe respectively, the air inlet and the air outlet are communicated with the handpiece, and a pressure relief component is provided inside the handle; The pressure relief assembly includes a pressure relief pipe, a reset member and a movable block. The pressure relief pipe is communicated with the air intake pipe. A pressure relief chamber is arranged inside the pressure relief pipe. The reset member is arranged inside the pressure relief chamber. The movable block is connected to the reset member, and the movable block can move back and forth in the pressure relief chamber.
2. The dental handpiece with pressure relief function according to claim 1, characterized in that: The reset member comprises a reset spring and a limit seat, wherein the limit seat is arranged inside the pressure relief chamber, one end of the reset spring is connected to the limit seat, and the other end of the reset spring is connected to the movable block.
3. The dental handpiece with pressure relief function according to claim 1, characterized in that: The pressure relief assembly further comprises a delivery pipeline, one end of which is communicated with the pressure relief pipe, and the other end of which is communicated with the air intake pipeline.
4. The dental handpiece with pressure relief function according to claim 1, characterized in that: The movable block is adapted to the pressure relief chamber.
5. The dental handpiece with pressure relief function according to claim 1, characterized in that: The output end of the machine head is provided with a rotating needle sleeve, and the needle is detachably connected to the rotating needle sleeve.