Novel dental electric suction system

Abstract

The utility model discloses a novel dental electric suction system which comprises an electric control system and a connecting pipeline, a suction unit, a first filter, a gas-liquid separator, a second filter and a use end are sequentially arranged in the connecting pipeline from downstream to upstream, the use end and the suction unit are both connected with the electric control system, and the first filter is connected with the gas-liquid separator. The electric control system is configured to control starting and stopping of the attraction unit according to a switching signal of the using end. A flow sensor located on the upstream of the second filter is further arranged on the connecting pipeline and connected with the electric control system so that the suction unit can be closed when it is detected that the flow in the connecting pipeline is lower than a set threshold value. According to the novel dental electric suction system disclosed by the utility model, even if the saliva pump at the use end is not placed back to the original position or a switch signal fails, the electric control system can judge the working condition of the current use end according to the flow information, so that the suction unit is shut down when the use end is not used; and waste caused by long-time work of the suction unit and damage caused by overheating are avoided.

Description

Technical Field

[0001] The utility model relates to the field of dental electric suction equipment, in particular to a novel dental electric suction system. Background Art

[0002] The dental electric suction system is a field device that provides a negative pressure air source during oral treatment. It is used to remove the coolant sprayed by the turbine handpiece during oral treatment, as well as saliva and food residues in the patient's mouth, to avoid the patient's swallowing reaction during treatment and interruption of treatment. The dental electric suction system is often installed in a machine room far away from the dental treatment room and can support the use of multiple dental chairs at the same time.

[0003] At present, the existing dental electric suction system is started by a passive switch signal installed at the dental chair when in use. As long as any dental chair is in use, the system will start. When all dental chairs are out of use and the switch signal is disconnected, the suction system will stop. However, in actual use, the saliva ejector connected to the end of the suction system is not put back in place or the switch that triggers the signal fails, which may cause the switch signal to be unable to be disconnected, and the suction machine in the suction system will continue to run, which will pose a risk of overheating and damage to the suction machine. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the background technology and provide a new dental electric suction system.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A novel dental electric suction system comprises an electric control system and a connecting pipeline, wherein a suction unit, a first filter, a gas-liquid separator, a second filter and a use end are arranged in the connecting pipeline in order from downstream to upstream, wherein the use end and the suction unit are both connected to the electric control system, and the electric control system is configured to control the start and stop of the suction unit according to a switch signal of the use end;

[0007] The connecting pipeline is also provided with a flow sensor located upstream of the second filter, and the flow sensor is connected to the electronic control system to shut down the suction unit when it is detected that the flow in the connecting pipeline is lower than a set threshold.

[0008] Furthermore, it also includes a vacuum regulating valve and a second pressure sensor arranged on the connecting pipeline between the first filter and the suction unit;

[0009] The vacuum regulating valve and the second pressure sensor are both connected to the electronic control system. When the second pressure sensor detects that the vacuum degree in the connecting pipeline exceeds a set threshold, the electronic control system controls the vacuum regulating valve to open to unload the negative pressure in the connecting pipeline that exceeds the set threshold.

[0010] Further, the vacuum regulating valve is located on the downstream side of the first filter.

[0011] Furthermore, the suction group includes multiple suction machine units, and the gas-liquid separator is provided with a first pressure sensor connected to the electronic control system. The electronic control system is configured to start and stop the multiple suction machine units according to the actual measured value of the first pressure sensor to keep the pressure in the gas-liquid separator constant.

[0012] Furthermore, each group of the suction machine units is also provided with a temperature sensor connected to the electronic control system for monitoring the exhaust temperature of the current suction machine unit, and the electronic control system is configured to shut down the suction machine unit when the exhaust temperature exceeds a set threshold.

[0013] Furthermore, the gas-liquid separator is also provided with a liquid level sensor and a sewage discharge device connected to the electronic control system, and the electronic control system is configured to control the sewage discharge device to discharge sewage according to the liquid level information in the gas-liquid separator.

[0014] Furthermore, a manual valve is provided in the sewage discharge device for manually controlling the sewage discharge device to discharge sewage.

[0015] Furthermore, the sewage discharge device is also connected to a flushing circuit, and the other end of the flushing circuit is connected to the connecting pipeline located upstream of the second filter for flushing the second filter.

[0016] Furthermore, the gas-liquid separator is also connected to a backwashing device connected to the electric control system, and the electric control system is configured to control the backwashing device to intermittently flush the inside of the gas-liquid separator according to a set time interval.

[0017] Furthermore, a pressure difference monitoring device is also provided on the first filter and the second filter.

[0018] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0019] In the novel dental electric suction system of the utility model, a flow sensor is also provided on the connecting pipeline. Even if the saliva suction device at the use end is not put back to its original position or the switch signal fails, the electronic control system can judge the working condition of the current use end according to the flow information, so as to shut down the suction unit when the use end is not in use, thereby avoiding waste caused by long-time operation of the suction unit and damage caused by overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural principle diagram of a novel dental electric suction system of the utility model;

[0021] Icons: 1-electronic control system, 2-display screen, 3-first pressure sensor, 4-gas-liquid separator, 5-first filter, 6-vacuum regulating valve, 7-suction unit, 70-suction unit, 8-temperature sensor, 9-flow sensor, 10-second filter, 11-liquid level sensor, 12-flushing circuit, 13-first manual valve, 14-electric valve, 15-backwashing device, 16-second manual valve, 17-drainage device, 18-check valve, 19-connecting pipeline, 20-online monitoring platform, 21-fault indicator, 22-second pressure sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Reference Figure 1 The utility model discloses a novel dental electric suction system, which includes an electric control system 1 and a connecting pipeline 19.

[0024] The electric control system 1 is provided with a display 2 , and the electric control system 1 is connected to an online monitoring platform 20 and a plurality of fault indicators 21 .

[0025] Reference Figure 1 , a suction unit 7, a first filter 5, a gas-liquid separator 4, a second filter 10 and a use end are sequentially arranged in the connecting pipeline 19 from downstream to upstream, wherein the use end includes one or more saliva suction devices, the use end and the suction unit 7 are both connected to the electronic control system 1, and the electronic control system 1 is configured to control the start and stop of the suction unit 7 according to the switch signal of the use end, that is, the use of any group of saliva suction devices will cause the suction unit 7 to work, and the cessation of use of all saliva suction devices will cause the suction unit to shut down.

[0026] The first filter 5 is used for fine filtering to remove harmful substances such as bacteria in the connecting pipe 19, and the second filter 10 is used to remove particles with a diameter greater than 1 mm.

[0027] Among them, refer to Figure 1 The connecting line 19 is also provided with a flow sensor 9 located upstream of the second filter 10. The flow sensor 9 is connected to the electronic control system 1 to shut down the suction unit 7 when it is detected that the flow in the connecting line 19 is lower than a set threshold. When the saliva suction device at the use end is not put back to its original position or the switch signal fails, the electronic control system 1 can also determine whether there is a saliva suction device in operation based on the flow information in the connecting line 19 monitored by the flow sensor 9, and then shut down the suction unit 7 when the saliva suction device is no longer in use.

[0028] In addition, refer to Figure 1 A vacuum regulating valve 6 and a second pressure sensor 22 are also provided on the connecting pipeline 19 between the first filter 5 and the suction unit 7. The vacuum regulating valve 6 and the second pressure sensor 22 are both connected to the electronic control system 1. When the second pressure sensor 22 detects that the vacuum degree in the connecting pipeline 19 exceeds the set threshold, that is, the suction unit 7 may be overloaded and damaged, the electronic control system 1 controls the vacuum regulating valve 6 to open, introduces the gas from the external environment into the connecting pipeline 19, balances the air pressure in the connecting pipeline, and unloads the negative pressure in the connecting pipeline 19 that exceeds the set threshold.

[0029] In addition, refer to Figure 1 The vacuum regulating valve 6 is located on the downstream side of the first filter 5. Compared with the prior art in which the first filter 5 is installed downstream of the suction unit 7, the first filter 5 is installed on the upstream side of the vacuum regulating valve 6. This can avoid the back pressure phenomenon when the suction unit 7 is exhausted, reduce the load of the suction unit 7, and extend the service life of the suction unit 7. At the same time, the suction unit 7 is used in conjunction with the vacuum regulating valve 6. Even if the first filter 5 at the upstream end is blocked, the suction unit 7 will not be damaged.

[0030] The suction unit 7 includes a plurality of suction units 70. In this embodiment, two suction units 70 are provided in the suction unit 7. Each suction unit 70 is connected to the connecting pipeline 19 through an independent pipeline. Figure 1 A first pressure sensor 3 connected to the electric control system 1 is provided on the gas-liquid separator 4. The electric control system 1 is configured to start and stop multiple suction machine units 70 according to the actual measured value of the first pressure sensor 3 to keep the pressure in the gas-liquid separator 4 constant and keep the entire electric suction system in good working condition.

[0031] Reference Figure 1Each group of suction machine units 70 is also provided with a temperature sensor 8 connected to the electronic control system 1 to monitor the exhaust temperature of the current suction machine unit 70. When the exhaust temperature of any suction machine unit 70 exceeds the set threshold, the electronic control system 1 shuts down the suction machine unit 70 whose exhaust temperature exceeds the set threshold, and chooses whether to start other suction machine units 70 to take over the work according to the current pressure in the gas-liquid separator 4.

[0032] In addition, the first filter 5 and the second filter 10 are both provided with a pressure difference monitoring device, which is connected to the electronic control system 1. When the pressure difference of any filter exceeds the set value, it means that the current filter is working abnormally and needs to be cleaned or maintained and replaced. The electronic control system 1 feeds back the above-mentioned warning information to the maintenance personnel through various information transmission channels such as sound and light.

[0033] In addition, the gas-liquid separator 4 is also provided with a liquid level sensor 11 and a sewage discharge device 17 connected to the electronic control system 1. The electronic control system 1 is configured to control the sewage discharge device 17 to discharge sewage according to the liquid level information in the gas-liquid separator 4. The sewage discharge device 7 has two sewage discharge pipelines, namely an automatic sewage discharge pipeline and a manual sewage discharge pipeline. A second manual valve 16 is provided on the manual sewage discharge pipeline for sewage discharge.

[0034] The automatic sewage discharge pipeline is opened and closed by an electronic control system to achieve the purpose of automatic sewage discharge. A one-way valve 18 is provided downstream of the automatic sewage discharge pipeline to prevent sewage backflow.

[0035] In addition, a flushing circuit 12 is connected to the automatic sewage discharge circuit of the sewage discharge device 17. The other end of the flushing circuit 12 is connected to the connecting pipe 19 located upstream of the second filter 10 for flushing the second filter 10. That is, when the pressure difference of the second filter 10 exceeds the preset value, the flushing circuit 12 can flush the second filter 10 under the drive of the electric pump.

[0036] In addition, the gas-liquid separator 4 is also connected to a backwashing device 15 connected to the electronic control system 1. The electronic control system 1 is configured to control the backwashing device 15 to flush the inside of the gas-liquid separator 4 according to a set time interval. The backwashing liquid can be a chlorine-containing disinfectant or acidic oxidizing potential water or other liquids or mixtures that can kill bacteria, thereby ensuring that the discharged sewage meets environmental protection requirements and avoids bacterial transmission.

[0037] When a fault occurs in the dental electric suction system of the present invention, the electric control system 1 notifies relevant personnel to handle the problem through the online monitoring platform 20. In addition, a fault indicator 21 is provided in each dental department. When the dental suction system cannot be shut down due to a switch signal failure, a prompt is issued. Clicking the reset button on any fault indicator 21 can restore the normal operation of the system.

[0038] For example, when a patient in the oral department needs to use a negative pressure gas source for treatment, the doctor lifts the saliva suction device, triggering the dental suction system start switch signal, and the electronic control system 1 controls the suction unit 7 to start running. The speed of the suction unit 7 is controlled according to the pressure value of -15kPa set by the gas-liquid separator 4 to stabilize it at -15kPa. If one suction unit 70 cannot meet the use requirements, the second suction unit 70 will take over. When the saliva suction device is put back in place after use, the switch signal is cut off. When all the switch signals at the dental chair are cut off, the suction unit 7 stops running.

[0039] If the switch signal at any dental chair is not disconnected, and the electronic control system 1 detects that the flow rate of the connecting pipeline 19 is lower than the set value, the electronic control system 1 will issue a shutdown fault indication, and synchronize it to the fault indicator 21 of each department and the online monitoring platform 20, notify the relevant personnel to handle it, and delay the stop of the operation of the suction machine 7. After the fault is handled or the fault is not handled, you can click the reset button on any fault indicator 21 to restart the operation of the suction unit 7.

[0040] During the process, if the sewage discharge device 17 fails and causes the liquid to reach the set upper limit, the electronic control system 1 controls the dental suction system to stop running, and sends out an alarm message, which is synchronized to the online monitoring platform 20 to notify relevant personnel to handle it. Therefore, the liquid can be discharged through the second manual valve 16 in an emergency.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel dental electric suction system, comprising an electric control system (1) and a connecting pipeline (19), wherein the connecting pipeline (19) is provided with a suction unit (7), a first filter (5), a gas-liquid separator (4), a second filter (10) and a use end in sequence from downstream to upstream, wherein: The user end and the suction unit (7) are both connected to the electric control system (1), and the electric control system (1) is configured to control the start and stop of the suction unit (7) according to the switch signal of the user end, characterized in that: The connecting pipeline (19) is also provided with a flow sensor (9) located upstream of the second filter (10); the flow sensor (9) is connected to the electronic control system (1) so as to shut down the suction unit (7) when it is detected that the flow in the connecting pipeline (19) is lower than a set threshold.

2. The novel dental electric suction system according to claim 1, characterized in that: It also includes a vacuum regulating valve (6) and a second pressure sensor (22) arranged on the connecting pipeline (19) between the first filter (5) and the suction unit (7); The vacuum regulating valve (6) and the second pressure sensor (22) are both connected to the electronic control system (1). When the second pressure sensor (22) detects that the vacuum degree in the connecting pipeline (19) exceeds a set threshold, the electronic control system (1) controls the vacuum regulating valve (6) to open so as to unload the negative pressure in the connecting pipeline (19) that exceeds the set threshold.

3. The novel dental electric suction system according to claim 2, characterized in that: The vacuum regulating valve (6) is located on the downstream side of the first filter (5).

4. The novel dental electric suction system according to claim 1, characterized in that: The suction machine group (7) comprises a plurality of suction machine units (70), and the gas-liquid separator (4) is provided with a first pressure sensor (3) connected to the electric control system (1). The electric control system (1) is configured to start and stop the plurality of suction machine units (70) according to the actual measured value of the first pressure sensor (3) so as to keep the pressure in the gas-liquid separator (4) constant.

5. The novel dental electric suction system according to claim 1, characterized in that: Each group of the suction machine units (70) is also provided with a temperature sensor (8) connected to the electric control system (1) for monitoring the exhaust temperature of the current suction machine unit (70). The electric control system (1) is configured to shut down the suction machine unit (70) whose exhaust temperature exceeds a set threshold.

6. The novel dental electric suction system according to claim 1, characterized in that: The gas-liquid separator (4) is also provided with a liquid level sensor (11) and a sewage discharge device (17) connected to the electric control system (1), and the electric control system (1) is configured to control the sewage discharge device (17) to discharge sewage according to liquid level information in the gas-liquid separator (4).

7. The novel dental electric suction system according to claim 6, characterized in that: The sewage discharge device (17) is also provided with a manual valve for manually controlling the sewage discharge device (17) to discharge sewage.

8. The novel dental electric suction system according to claim 6 or 7, characterized in that: The sewage discharge device (17) is also connected to a flushing circuit (12), and the other end of the flushing circuit (12) is connected to the connecting pipeline (19) located upstream of the second filter (10) for flushing the second filter (10).

9. The novel dental electric suction system according to claim 1, characterized in that: The gas-liquid separator (4) is also connected to a backwashing device (15) connected to the electric control system (1), and the electric control system (1) is configured to control the backwashing device (15) to intermittently flush the interior of the gas-liquid separator (4) according to a set time interval.

10. The novel dental electric suction system according to claim 1, characterized in that: The first filter (5) and the second filter (10) are also provided with a pressure difference monitoring device.

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