RU20838U1 - PNEUMATIC DENTAL CONTROL SYSTEM - Google Patents

Abstract

Pneumatic control system for a dental drill, containing a filter, a reducer, pressure gauges, a pedal, a pressure reducing valve, a water tank, a dispenser, an operating pressure display unit, connecting hoses to a mechanized dental instrument, a dental gun, a control unit including water supply control valves, valves air supply control and air flow and pressure regulators, water flow and pressure regulators, pneumatic switches connected by main tubes, characterized in that the air flow and pressure regulators, water supply control valves and air supply control valves are made in a single control unit housing, the air flow and pressure regulators are made with spring-loaded gates installed in the housing and interacting with the valve body through the gasket, water supply control valves and air supply control valves are made with spring-loaded springs cone-shaped elements located in valve bodies and interactions Enikeev with membranes, the display unit is designed as a spring-loaded by springs conical elements mounted in a valve casing, interacting with the membranes, and the channel connecting the cavity Fitting cone-shaped elements connected to a control manometer.

Description

PNEUMATIC CONTROL SYSTEM FOR DENTAL DRILLING MACHINE

The proposed OTHOCI-ITCH technical solution for medical technology, in particular, for dentistry, is designed to control the supply of supply air, cooling air and water.

There is a pneumatic control system for the drill (RF Patent Ш063721, IPC А61 С 1/04, publ. 20.07.96, bull. Ш, 0). The system contains a foot control device, the input of which is connected to the air supply line, and V1 inputs are connected to the first and input control of the selector valve device, the power inputs of which are connected to the corresponding supply lines of working air, air and cooling water, and the outputs are connected to the supply inputs of the corresponding 11 agents to tools, control valves located in the sockets of the tool holder, through which the air supply line is connected to the control inputs of the oil distribution Call duration unit, and the exhaust air line from the tool. The pneumatic system has a controlled pneumatic suction pump, a check valve block and a pneumatic sump, and a selector valve device is made in the form of a control block and a controlled valve block, the control inputs of the latter of which are connected to the control outputs of the oil distribution block, and the inputs of the supply of chilled air, working air and water agents cooling connected to the same outputs of the control unit, respectively

non-destructive, through the distribution block and through the lower invoice, while the pneumatic sump through the clan return block is connected to the exhaust air lines from the instruments.

The oil spray unit consists of a distribution block connected in series, consisting of at least 11 and 11 valve valves, a common inlet, at least two outflows and two branching control cavities, and a higher masdenka and kschaly according to the number of spring-loaded valves. Pneumothitium; iitiyt from a glass, in which a condensing filter element is installed, connected to the outlet fitting fixed to the base through which the input channel passes.

This pneumatic control system of the drill has a very complex design and when implementing it in a particular drill, problems arise with ensuring the reliability of the structure. The oil distribution block is used in this system, which lubricates the turbine dental tips in a dispersed (sprayed in drive air) state. With this method of lubrication, it is possible that oil gets onto the stubs of the prepared cavity, which is unacceptable for many dental materials. (Dental handpieces. Shmigirilov V., reference book, M., DINA DENTAMED, 1999, p. 13).

A system for supplying compressed air to a pneumatic actuator (a.s.SSSR No. 15Z66S1, IPC A61 C 13/00, published in the Inventions of the World section medical and windshire section, hygiene, issue 14, Moscow, 19SG 1-., CTP.S5) It has a simpler design and does not contain a distribution unit. This air supply system consists of a compressed air pipeline, a filter sequentially installed on it, a gearbox and a pneumatic booster with a membrane dividing it into a control chamber and a Kajs-iepy valve, a rigid center mounted on a membrane with a throttle hole, a valve seat located in the valve chamber , and a spring-loaded valve resting on a rigid center. The system also consists of a controlled valve, a pneumatic tool with a holder. Between the filter and the gearbox, a compressed air flow divider is installed, connected by its first outlet to the gearbox inlet, the outlet of which is connected to the valve chamber inlet. The output of the controlled valve is connected to the control chamber, and the pneumatic tool is connected to the inlet of the valve chamber of the pneumatic amplifier. This design allows to increase the productivity and reduce the loss of compressed air due to the separation of the flow into the control flow and the working flow, however, this system cannot provide adjustment of the flow rate and air pressure on; each of the output channels of the drill.

The closest design to the proposed technical solution is the compressed air supply system to the pneumatic actuator (ASSSSR No. 1526680, ШЖ А61 С 13/00, 305, D 16/00, published in the Inventions of the World, medical and veterinary section, hygiene Issue 14, No. 5, Moscow, 1990, p. 25).

The compressed air supply system consists of a compressed air pipeline, sequentially installed: on it a filter, a reducer, and a pneumatic reducer with a membrane dividing it into a control chamber and a valve chamber, a sleeve fixed to a membrane with a throttle bore, a valve seat located in the valve chamber and spring-loaded valve resting on the sleeve

/ Vr / 9 / - 4 / ID (VI at X / - 3 viipciHJiHttMuru KJiajiana of a pneumatic tool. A compressed air flow divider is installed between the filter and the gearbox. The system is equipped with a distributor with elastic membranes and distributing it to the submembrane and receiving chambers. In the receiving chamber, valve seats, separating the supra-membrane chambers from it, spring-loaded valves supported by membranes and interacting with the seats.The system is also equipped with holders made with micro valves connected to the control chamber of the pneumatic amplifier and the submembrane cameras of the distributor and additional pneumatic tools.

The main disadvantage of this system is the inability to control the flow rate and air pressure on each channel of the compressed air supply system to a mechanized dental instrument and the display of the adjustable pressure parameter on the pressure gauge. For example, the turbine tip is different: the models have telnical characteristics with a large dispersion of pressure of air before the inlet from 1.8 to 3, S kgf / cm. Various midships of pneumatic micromotors and n / a motors for removing stone zoinigi have a variance in pressure requirements

viadula in front of the instrument from 2 to 4.5 kgf / cm.

quenchable tel; the primary objective of the proposed technical solution is ivlietin and the possibility of regulating and consuming the vidul on each channel of the compressed air supply system to the melaniriric of the dental instrument with the displayed variable pressure parameter on the pressure gauge.

The technical problem is being solved in the pneumatic control system of a dental irmine machine containing fighter, gearbox, pressure gauges, control pedal, pressure reducing valve, reserve / / e / 5-3S

Bvau DLN types, distributor, operating pressure display unit, and single hoses to a mechanized dental unit, dental unit, control unit including water supply control valves, airflow control valves and air flow and pressure regulators, air flow regulators: air pressure and pressure switches, connected by main pipes, is achieved by the fact that the control valves for water and air control valves are made in a single control unit housing, flow rate and air pressure vectors are made with spring-loaded springs with shutters installed in the housing and interacting with the valve body through the gasket, water supply control valves and air supply control valves are made with spring-loaded springs with cone-shaped elements; are the indication units made in the valve bodies and interacting with the membranes? in the form of cone-shaped elements spring-loaded with each other by springs installed in valve bodies and interacting with the membrane / 1I, and the channel Al connecting the cavity by installing cone-shaped elements, connect with the control manometer.

As in FIG. 1 shows a pneumatic control system for a dental drill in a schematic form.

In FIG. S regulator of an expense and air pressure, is increased.

In FIG. 3 valves for air and water, uve.yremeno.

In FIG. 4 display unit, enlarged.

The pneumatic control system of the dental drill (Figs. 1-4) contains a filter 1, a gearbox 2, pressure gauges 3 and 4, a control pedal 5, a pressure reducing valve 6, a water tank 7, a distributor 8, an operating pressure display unit 9,

) V

    - 7 7

- 5 connecting hoses to the mechanized dental instrument 10, 11, 12, 13, a dental gun 14, a control unit 15 including water control valves 16, 17, 18, 19, air control valves SO, SI, SS, S3, and air flow and pressure regulators S4, S5, S6, S7, water flow and pressure regulators S8, S9, 30, 31, pneumatic switches 32, 33, 34, 35, connected by master tubes 36, 37.38, 39, 40, 41 , 4S, 43, 44, 45, 46, 47, 48, 49, 50, 51, 5S, 53, 54, 55, 56, 57, 58, 59, 60, 61, 6S, 63, 64, 65, 66 , 67, 68, 69, 70, 71, 7S, 73, 74. Air flow and pressure regulators 24, S5, 26, S7, control valves the water supply 16, 17, 18, 19 and the air supply control valves 20, 21, 22, 23 are made in a single housing 75 of the control unit 15. The air flow and pressure regulators 24, 25, 26, 27 are made with spring-loaded shutter springs 76 77 installed in a single housing 75 and interacting with the housing of the shutter 78 through the gasket 79.

The valves for controlling the water supply 16, 17, 18, 19 and the valves for controlling the air supply 20, 21, 22, 23 are made with .. spring-loaded springs 79 cone-shaped elements 80 located in the housing of the B 81 and interacting with the membranes 82.

The display unit is made in the form of spring-loaded 83 springs of cone-shaped elements 84 and 85, mounted in valve housings 86 and interacting with membranes 87. Channel 88 connecting the cavity 89 and 90 of the cone-shaped installation is connected to a control pressure gauge 91.

Pneumatic control system of a dental drill operates as follows.

- 6 Compressed with a working pressure of 0.45 ... 0.6 MPa (4.5 ... 6, O kgf / cm) is supplied to the filter 1. The cleaned and dehydrated air through the main pipe 36 enters the gearbox, where it is set working air pressure 0.4 MPa (4 kgf / cm), which is controlled by a manometer 3.

The pilot saw of gearbox 2 through the main pipe 47 was blown up on the control unit 15, and through the main pipe 63 to the pressure reducing valve 6. Through its channel through the gearbox 5, bypassing the control chamber, the air through the main pipe 37 with a pressure of 0.45 ... 0 , 6 Sha (4.5 ... 6, O kgf / cm) enters the control pedal 5. Air pressure 0.25 MPa (2.5 kgf / cm) is set on pressure reducing valve 6 and then air through the main pipeline 65 enters the water tank 7 and through the main pipeline 64 to the dentist gun esky 14. A pressure of 0.25 MPa (2.5 kgf / cm2) is created in the water tank and it displaces distilled water through the main pipeline 71 to the dental gun 14 and through the main pipeline to the control unit 15.

The control pedal 5 is turned on by pressing the doctor’s foot, air under pressure of 0.45 ... 0.60 MPa through the main pipeline 37 enters the distributor 8, and then through the main pipelines 39, 40, 41, 42 to the pneumatic switches 32, 33, 34, 35, which serve to block the inclusion, i.e. the bormaler will not work when the connecting hoses to the mechanized dental instruments are inserted into the tool holders 10, 11, 12, 13. The control unit 15 and the corresponding mechanized instrument will be turned on only when one of the connecting hoses to the mechanized dental is removed

the tool 10, 11, 12 or 13 and the pressed foot switch 5. After the tool is removed from the tool tray and one of the pneumatic switches 32, 33, 34 or 35 is in the open (not locked) position, the foot switch 5 and air with pressure О , 45 ... O, 60 MPa (4.5 ... 6, O kgf / cm) through one of the main pipelines 43, 44, 45 or 46 enters from the water supply control valves 16, 17, 18 or 19 and respectively, through one of the main pipelines 39, 40, 41 or 42 to the working pressure indication unit 9. When the control is turned on, the corresponding p Apaana (a) controlling the water supply 16, 17, 18 or 19 and one of the air feeding control valves 20, 21, 22 or 23. The air is supplied to the set parameters through one of the connecting hoses to mechanized dental instrument. Parameters are set by one of the built-in flow and pressure regulators 24, 25, 26, or 27.

Passing through the operating pressure display 9, the pressure parameters are reflected on the pressure gauge 4, which is installed on the front panel of the drill. One of the water supply control valves 16, 17, 18 or 19 turns on simultaneously with one of the air supply control valves 20, 21, 22 or 23 and the corresponding valve in the display unit 9. Water enters under a pressure of 0.25 MPa (2.5 kgf / cm) through its channel to one of the regulators of flow and pressure of water 28, 29, 30 or 31, after which it enters one of the connecting hoses to the mechanized dental instrument 10, 11, 12 or 13.

The gun stomatologriesk1Sh 14 works autonomously when you press the buttons Water - water supply and Air - air supply and

both buttons together spray. These buttons 11 are located on the body of the stimological gun.

Biadul cooling and spraying water is supplied to a mechanized dental instrument at the same time as the working air.

Rechulia The airflow and air pressure side are carried out by adjusting air pressure and air pressure 4, S5, 26, 7 (Fig. E) by turning the shutters 77 in any direction. The hole in the shutter 77, coinciding with the channel in the housing 75, provides air passage. A spring 76 presses the shutter 77 through the gasket 79 to the shutter body 78, which ensures the tightness of the operation of this unit.

The water supply control valve 16, 17, 18, 19 and the air supply control valves 20, 21, 22, 23 (FIG. 3) have the same design. Under the excess pressure O, 45 ... O, 60 MPa (4.5 ... 6 kgf / cm), the membrane 82 bends and presses onto the cone-shaped element 80, which opens the passage section in the valve body 81, counteracting the force of the spring 79.

When the pressure is turned off, the spring 79 will return the cone-shaped element 80 to its original position, the passage section between the valve body 81 and the cone-shaped element is closed.

The display unit 9 (figure 4) works as follows. The pressure O, 45 ... O, 60 MPa (4.5 ... 6 kgf / cm2) is supplied into the space above the membrane 87, the membrane 87 bends and presses on the cone-shaped element 84, which opens the bore 89 in the valve body 86, counteracting the force of the spring 83.

The cone-shaped elements 84 and 85 are spring-loaded with a spring 83 between each other, therefore, the imposition of pressures in different channels on the control pressure gauge is practically eliminated. Air enters

- 9 channel 88 and through the main pipeline 61 to the control pressure gauge 91.

The proposed pneumatic control system for the dental drill allows you to effectively ..treatment of teeth by adjusting the working pressure, air flow and pressure, pressure and flow of cooling water and air (spray), allows you to constantly monitor the pressure of the working air on the cage from the included mechanized dental instruments in separately.

/ 7; 7 7s7 / L -f-10-r / y / v /

Claims (1)

Pneumatic control system for a dental drill, containing a filter, a reducer, pressure gauges, a pedal, a pressure reducing valve, a water tank, a dispenser, an operating pressure display unit, connecting hoses to a mechanized dental instrument, a dental gun, a control unit including water supply control valves, valves air supply control and air flow and pressure regulators, water flow and pressure regulators, pneumatic switches connected by main tubes, characterized in that the air flow and pressure regulators, water supply control valves and air supply control valves are made in a single control unit housing, air flow and pressure regulators are made with spring-loaded gates installed in the housing and interacting with the valve body through the gasket, water supply control valves and air supply control valves are made with spring-loaded springs cone-shaped elements located in valve bodies and interactions Enikeev with membranes, the display unit is designed as a spring-loaded by springs conical elements mounted in a valve casing, interacting with the membranes, and the channel connecting the cavity Fitting cone-shaped elements connected to a control manometer.