CN-224206901-U - Dental drill device, voltage regulator for dental drill and pneumatic switch thereof

Abstract

The utility model relates to a dental drill device, a voltage regulator for the dental drill and a pneumatic switch thereof. The pneumatic valve and the infrared correlation sensor can be arranged on the pressure regulator body. The valve body of the pneumatic valve is connected with a high-pressure air source, and a telescopic push rod is arranged on the valve body. The push rod and the infrared correlation sensor are oppositely arranged, the infrared correlation sensor is provided with a transmitting end and a receiving end, and an infrared light path is formed between the transmitting end and the receiving end. When the push rod is driven by high-pressure gas output by the high-pressure gas source to be in an extension state, the push rod shields an infrared light path, and the pneumatic switch is opened. When the push rod is reset and is in a shortened state, the push rod is separated from the infrared light path, and the pneumatic switch is closed. The pneumatic valve has the beneficial effects that the pneumatic valve with the solid structural part made of harder materials is used for bearing the driving force of high-pressure gas, so that the pneumatic valve is strong in bearing capacity, difficult to damage and long in service life.

Inventors

• HAN XUANYU
• LIANG YUHONG

Assignees

• 佛山市鑫诺尔医疗器械有限公司

Dates

Publication Date

20260508

Application Date

20250325

Claims (10)

1. 1. A pneumatic switch for a voltage regulator of a dental drill, characterized by comprising a pneumatic valve (4) and an infrared correlation sensor (5); The pneumatic valve (4) and the infrared correlation sensor (5) can be arranged on the pressure regulator body (1); The valve body (41) of the pneumatic valve (4) is connected with a high-pressure air source, a telescopic push rod (42) is arranged on the valve body (41), the push rod (42) and the infrared correlation sensor (5) are oppositely arranged, the infrared correlation sensor (5) is provided with a transmitting end and a receiving end, and an infrared light path is formed between the transmitting end and the receiving end; When the push rod (42) is driven by high-pressure gas output by the high-pressure gas source to be in an extension state, the push rod (42) shields the infrared light path, and the pneumatic switch is turned on; When the push rod (42) is reset to be in a shortened state, the push rod (42) is separated from the infrared light path, and the pneumatic switch is closed.
2. 2. The pneumatic switch of a voltage regulator for dental drills according to claim 1, characterized in that the infrared correlation sensor (5) is U-shaped, the opening of the U-shaped slot of the infrared correlation sensor (5) being directed towards the push rod (42); When the push rod (42) is in an extension state, the push rod (42) extends into the U-shaped groove to shield the infrared light path; When the push rod (42) is in a shortened state, the push rod (42) is separated from the U-shaped groove so as to be separated from the infrared light path.
3. 3. A voltage regulator for dental drills, comprising a pneumatic switch for a voltage regulator for dental drills according to claim 1, characterized in that it further comprises the regulator body (1), and a controller (7) and a power supply circuit provided on the regulator body (1); The output end of the infrared correlation sensor (5) is connected with the controller (7), and the controller (7) is connected with the power supply circuit.
4. 4. A voltage regulator for dental drills according to claim 3, characterized in that the regulator body (1) is further provided with a pneumatic valve seat (6), the pneumatic valve seat (6) is provided with a mounting groove for mounting the valve body (41), the side wall of the pneumatic valve seat (6) is provided with a guide groove (61) extending along the axial direction of the valve body (41), and the guide groove (61) is used for accommodating and providing the push rod (42) for expansion and contraction.
5. 5. A voltage regulator for dental drills according to claim 3, characterized in that the gas circuit connection (43) of the valve body (41) protrudes outside the regulator body (1); the gas circuit joint (43) of the valve body (41) is used for connecting the high-pressure gas source.
6. 6. A voltage regulator for dental drills according to claim 3, further comprising an input interface (2) and an output interface (3) provided on the regulator body (1); the input interface (2) and the output interface (3) are connected through the power supply circuit.
7. 7. The voltage regulator for dental drills according to claim 6, further comprising a key (8) and a display (9) provided on the surface of the regulator body (1), the key (8) and the display (9) being connected to the controller (7); The keys (8) comprise a voltage regulating and time delay switching key, a numerical value increasing key and a numerical value decreasing key.
8. 8. Voltage regulator for dental drills according to claim 6, characterized in that the regulator body (1) is provided with a plurality of lighting circuits connected in parallel, each comprising the pneumatic valve (4), the sensor (5) and the output interface (3) independently.
9. 9. The voltage regulator for dental drills according to claim 8, further comprising a change-over switch (10) provided on the regulator body (1); the output end of the change-over switch (10) is connected with the controller (7).
10. 10. A dental drill device comprising a voltage regulator for a dental drill according to any one of claims 3-9, further comprising a dental drill, a high pressure gas source and a multi-branch tube; The main pipe of the multi-branch pipe is connected with the high-pressure air source, and the branch pipe of the multi-branch pipe is respectively connected with the valve body (41) and the dental drill; The power supply circuit is connected with the illuminating lamp on the dental drill through an electric wire.

Description

Dental drill device, voltage regulator for dental drill and pneumatic switch thereof Technical Field The utility model relates to the technical field of dental drills, in particular to a dental drill device, a voltage regulator for the dental drill and a pneumatic switch thereof. Background Dental drills are commonly used as dental treatment devices in modern oral treatment, the working principle of which generally relies on high pressure gas to drive an internal turbine structure to achieve high speed rotation. In the prior art, high-pressure gas is not only used for driving the dental drill body, but also acts on a matched optical fiber box control module at the same time, and the optical fiber box is started by triggering the conductive silica gel key through gas pressure, so that a light source signal adapting to working voltage is provided for the dental drill. However, the opening mechanism of the traditional optical fiber box has the remarkable defect that the instantaneous impact force of the traditional optical fiber box is far beyond the mechanical tolerance threshold value of the key material when the traditional optical fiber box directly acts on the conductive silica gel key due to the fact that the driving pressure of a high-pressure gas system is generally high (usually 0.2-0.6 MPa). In long-term use, the overload pressure easily causes deformation, contact fatigue and even fracture of the conductive silica gel structure, so that the problems of key failure, poor circuit contact and the like are caused. The defect not only reduces the control reliability of the optical fiber box, but also obviously increases the maintenance frequency and the use cost of equipment, and becomes a technical bottleneck for restricting the overall durability of the dental drill system. Disclosure of utility model First, the technical problem to be solved In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides a dental drill device, a voltage regulator for dental drill, and a pneumatic switch thereof, which solve the technical problems that the conductive silica gel structure of the traditional optical fiber box is easy to deform, contact fatigue and even break. (II) technical scheme In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps: In a first aspect, embodiments of the present utility model provide a pneumatic switch for a voltage regulator of a dental drill, comprising a pneumatic valve and an infrared correlation sensor; the pneumatic valve and the infrared correlation sensor can be arranged on the pressure regulator body; The valve body of the pneumatic valve is connected with a high-pressure air source, and a telescopic push rod is arranged on the valve body; the push rod and the infrared correlation sensor are oppositely arranged, the infrared correlation sensor is provided with a transmitting end and a receiving end, and an infrared light path is formed between the transmitting end and the receiving end; When the push rod is driven by high-pressure gas output by the high-pressure gas source to be in an extension state, the push rod shields the infrared light path, and the pneumatic switch is opened; When the push rod is reset and is in a shortened state, the push rod is separated from the infrared light path, and the pneumatic switch is closed. According to the utility model, the infrared correlation sensor is U-shaped, and the opening of the U-shaped groove of the infrared correlation sensor faces the push rod; When the push rod is in an extension state, the push rod extends into the U-shaped groove to shield the infrared light path; When the push rod is in a shortened state, the push rod is separated from the U-shaped groove so as to be separated from the infrared light path. In a second aspect, the present utility model further provides a voltage regulator for a dental drill, including a pneumatic switch for the voltage regulator for a dental drill, and further including the voltage regulator body, and a controller and a power supply circuit disposed on the voltage regulator body; The output end of the infrared correlation sensor is connected with the controller, and the controller is connected with the power supply circuit. According to the utility model, the pressure regulator body is further provided with the pneumatic valve seat, the pneumatic valve seat is provided with the mounting groove for mounting the valve body, the side wall of the pneumatic valve seat is provided with the guide groove extending along the axial direction of the valve body, and the guide groove is used for accommodating and expanding the push rod. According to the utility model, the gas circuit joint of the valve body extends out of the pressure regulator body; The gas circuit joint of the valve body is used for connecting the high-pressure gas source. According to the utility model, the voltage regu