Water vapor separation device, negative pressure machine and dental chair

Abstract

The utility model relates to medical apparatus and instruments technical field especially is involved in a kind of water-gas separation device, negative pressure machine and dental chair, water-gas separation device includes: liquid storage, inlet subassembly, exhaust component and liquid discharge subassembly, the inside of liquid storage is formed with liquid storage cavity;Inlet subassembly, exhaust component and liquid discharge subassembly are communicated with liquid storage cavity respectively;Inlet subassembly and exhaust component are all arranged in the upper of liquid discharge subassembly;Inlet subassembly includes the first guide piece that extends into liquid storage cavity, water-gas mixture enters liquid storage cavity via the first guide piece;The end of the first guide piece away from the outside of liquid storage is provided with the protruding partition, and the partition is arranged at the side of the first guide piece close to exhaust component.The utility model can extend the flowing path of gas in water-gas mixture into exhaust component, to help liquid to separate from gas before entering exhaust component, improve the condition that liquid enters negative pressure pipeline, so that water-gas separation device meets the needs of liquid in the mouth of patient in treatment to be sucked.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a water-air separation device, a negative pressure machine, and a dental chair. Background Technology

[0002] In dental treatment, saliva secreted by the patient and water sprayed from instruments during the procedure can accumulate in the patient's mouth, causing discomfort and even triggering a swallowing reflex. Excessive fluid buildup can also obstruct the treatment area and affect the setting of treatment materials. Therefore, negative pressure is needed to remove this fluid. A common device for generating negative pressure is a vacuum pump. While this effectively removes fluid, the working part of the vacuum pump requires as dry an airflow as possible, necessitating water-air separation. Common water-air separation devices utilize gravity. Large water-air separation tanks offer ample space and excellent separation efficiency. However, small tanks, with limited internal space and the ability to store only small amounts of liquid, are prone to allowing fluid to enter the negative pressure piping and eventually the vacuum pump itself. This can negatively impact the pump's performance and lifespan, failing to meet the need for fluid removal during dental treatment. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a water-air separation device, a negative pressure machine, and a dental chair to solve the problem that existing small-tank water-air separation devices are prone to liquid entering the negative pressure pipeline, affecting the performance and service life of the negative pressure machine, and failing to meet the needs of suctioning liquid from the patient's oral cavity during treatment.

[0004] The first aspect of this utility model provides a water-gas separation device, wherein the water-gas separation device includes a liquid storage component, an inlet component, an outlet component, and a drain component, wherein a liquid storage cavity is formed inside the liquid storage component; the inlet component, the outlet component, and the drain component are respectively connected to the liquid storage cavity; the inlet component and the outlet component are both disposed above the drain component;

[0005] The inlet assembly includes a first guide extending into the liquid storage chamber, through which the water-gas mixture enters the liquid storage chamber; a protruding partition is provided at one end of the first guide away from the outside of the liquid storage chamber, and the partition is provided on the side of the first guide near the exhaust assembly to extend the flow path of the gas in the water-gas mixture into the exhaust assembly.

[0006] Preferably, the inlet component further includes:

[0007] An inlet pipe is disposed outside the liquid storage component and communicates with the first guide component;

[0008] A first filter element is disposed within the first guide element, and at least a portion of the partition portion is disposed below the first filter element.

[0009] Preferably, the exhaust assembly includes:

[0010] The second guide extends into the liquid storage cavity, with one end of the second guide away from the outside of the liquid storage component forming a closed end, and a through hole is formed on the side wall of the second guide.

[0011] Preferably, the exhaust assembly further includes:

[0012] A blocking member is installed on the closed end. The blocking member has an annular funnel-shaped blocking portion. The large-diameter end of the blocking portion is located above the small-diameter end of the blocking portion. The blocking portion surrounds the area on the second guide member where the through hole is opened.

[0013] Preferably, the exhaust assembly further includes:

[0014] An exhaust pipe is disposed outside the liquid storage component and communicates with the second guide component;

[0015] A second filter element is installed on the second guide element; along the gas flow path, the second filter element is disposed downstream of the through hole.

[0016] Preferably, the water-gas separation device further includes:

[0017] The first adapter is connected to the inlet end of the first guide;

[0018] The second adapter is connected to the outlet end of the second guide;

[0019] Both the first adapter and the second adapter are installed on the liquid storage device.

[0020] Preferably, the drainage assembly includes:

[0021] The third guide is installed at the bottom of the liquid storage chamber; the third guide has a drainage hole, and the upper surface of the third guide is formed as an inclined guide portion, with the drainage hole located at the lowest point of the guide portion.

[0022] Preferably, the drainage assembly further includes:

[0023] The drain valve is connected to the drainage hole;

[0024] A sealing element is sandwiched between the third guide and the cavity wall of the liquid storage chamber.

[0025] Preferably, the water-gas separation device further includes:

[0026] A liquid level detection component is installed inside the liquid storage chamber.

[0027] The second aspect of this utility model provides a negative pressure machine, including the water-gas separation device described in any of the above technical solutions.

[0028] A third aspect of this utility model provides a dental chair, including the water-air separation device described in any of the above technical solutions.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] This utility model's water-gas separation device includes a liquid storage component, an inlet component, an outlet component, and a drain component. The liquid storage component has a liquid storage chamber inside. The inlet component, outlet component, and drain component are all connected to the liquid storage chamber. The inlet component and outlet component are both located above the drain component. The inlet component includes a first guide extending into the liquid storage chamber. The water-gas mixture enters the liquid storage chamber through the first guide component. The liquid in the water-gas mixture is discharged from the drain component under the action of gravity, and the gas in the water-gas mixture is discharged from the outlet component under the action of negative pressure suction. A protruding partition is provided at the end of the first guide component away from the outside of the liquid storage component. The partition is located on the side of the first guide component close to the outlet component to extend the flow path of the gas in the water-gas mixture into the outlet component. This helps the liquid to separate from the gas before entering the outlet component, improves the situation of liquid entering the negative pressure pipeline, ensures the performance of the negative pressure machine, extends the service life of the negative pressure machine, and makes the performance of the water-gas separation device, negative pressure machine, and dental chair meet the needs of suctioning liquid from the patient's oral cavity during treatment.

[0031] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of the water-air separation device provided for an embodiment of this utility model;

[0034] Figure 2 An exploded view of the structure of the water-gas separation device provided in an embodiment of this utility model;

[0035] Figure 3 A structural cross-sectional view of the water-gas separation device provided in the embodiments of this utility model;

[0036] Figure 4 An exploded view of the structure of the inlet component in the water-gas separation device provided in an embodiment of this utility model;

[0037] Figure 5 An exploded view of the exhaust component in the water-gas separation device provided in an embodiment of this utility model.

[0038] Icons: 10-Liquid storage component; 11-Liquid storage chamber; 20-Inlet assembly; 21-First guide component; 211-Separator; 22-Inlet pipe; 23-First filter component; 24-First adapter component; 30-Exhaust assembly; 31-Second guide component; 311-Closed end; 312-Through hole; 32-Blocking component; 321-Blocking part; 33-Exhaust pipe; 34-Second filter component; 35-Second adapter component; 40-Drainage assembly; 41-Third guide component; 411-Drainage hole; 412-Guide part; 42-Drainage valve; 43-Sealing component; 50-Liquid level detection assembly. Detailed Implementation

[0039] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0040] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0041] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0042] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0043] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0044] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0045] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0046] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0047] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0048] According to the first aspect of the present invention, a water-gas separation device includes a liquid storage component 10, an inlet component 20, an exhaust component 30, and a drain component 40.

[0049] The specific structure of the above-described components of the water-air separation apparatus according to this embodiment will be described below.

[0050] In this embodiment, as Figures 1 to 3 As shown, the liquid storage component 10 has a liquid storage chamber 11 inside. The liquid storage component 10 can be a container such as a can or a barrel. Multiple openings are provided on the liquid storage component 10 for the entry of water-gas mixtures, the discharge of liquid, or the discharge of gas. An inlet assembly 20, an exhaust assembly 30, and a drain assembly 40 are respectively installed on different openings to communicate with the liquid storage chamber 11. The inlet assembly 20 and the exhaust assembly 30 are both positioned above the drain assembly 40, thus utilizing gravity to achieve water-gas separation, allowing the liquid to flow out of the liquid storage chamber 11 from the drain assembly 40 under the influence of gravity. A negative pressure unit is connected to the exhaust assembly 30 to draw gas out of the liquid storage chamber 11.

[0051] The drain assembly 40 can be installed at the bottom of the reservoir 10. The inlet assembly 20 and the vent assembly 30 are arranged radially spaced apart from each other in the reservoir 10. Optionally, the inlet assembly 20 and the vent assembly 30 are installed on the top wall of the reservoir 10, for example, on the top cover of the reservoir 10; in other alternative embodiments, the inlet assembly 20 and the vent assembly 30 are installed on the top of the side wall of the reservoir 10, as long as the installation position of the inlet assembly 20 and the vent assembly 30 is higher than the installation position of the drain assembly 40.

[0052] In this embodiment, as Figures 1 to 4 As shown, the inlet assembly 20 includes a first guide member 21 extending into the liquid storage chamber 11. The first guide member 21 is formed into a hollow cylindrical structure. The water-air mixture enters the liquid storage chamber 11 through the first guide member 21. The liquid in the water-air mixture is discharged from the drain assembly 40 under the action of gravity, and the gas in the water-air mixture is discharged from the exhaust assembly 30 under the action of negative pressure suction. A protruding partition 211 is provided at the end of the first guide member 21 away from the outside of the liquid storage component 10. The partition 211 is located on the side of the first guide member 21 near the exhaust assembly 30 to extend the flow path of the gas in the water-air mixture into the exhaust assembly 30. This helps the liquid to separate from the gas before entering the exhaust assembly 30, improves the situation of liquid entering the negative pressure pipeline, ensures the performance of the negative pressure machine, extends the service life of the negative pressure machine, and makes the performance of the water-air separation device meet the needs of suctioning liquid from the patient's oral cavity during treatment.

[0053] Specifically, in this embodiment, the first guide member 21 can extend fully or partially into the liquid storage cavity 11, the first partition 211 can be a plate-shaped or sheet-shaped structure, and the protrusion direction of the first partition 211 can be protruding outward along the axial direction of the first guide member 21 or protruding outward along the radial direction of the first guide member 21.

[0054] Furthermore, in this embodiment, as Figures 1 to 4 As shown, the inlet assembly 20 also includes an inlet pipe 22 and a first filter element 23. The inlet pipe 22 is disposed outside the liquid storage component 10 and communicates with the first guide element 21, so that the water-air mixture can enter the first guide element 21 through the inlet pipe 22. The first filter element 23 is formed as a cylindrical filter screen to filter out solid substances, such as broken teeth, filling materials, etc. The first filter element 23 is disposed inside the first guide element 21, and at least part of the partition 211 is disposed below the first filter element 23, so that the water-air mixture flowing out of the first guide element 21 is free of impurities, and prevents solid substances from entering the drain assembly 40 and affecting the draining.

[0055] In this embodiment, as Figures 1 to 3 and Figure 5 As shown, the exhaust assembly 30 includes a second guide member 31 extending into the liquid storage chamber 11. The second guide member 31 is formed into a cylindrical structure, and one end of it away from the outside of the liquid storage chamber 10 is formed into a closed end 311. A through hole 312 is opened on the side wall of the second guide member 31, so that gas enters the exhaust assembly 30 from the side of the second guide member 31. This can also extend the flow path of gas into the exhaust assembly 30 to a certain extent, further improving the gas-liquid separation effect.

[0056] Preferably, multiple through holes 312 are provided, and the multiple through holes 312 are arranged at intervals around the circumferential sidewall of the second guide member 31.

[0057] Furthermore, in this embodiment, as Figures 1 to 3 and Figure 5 As shown, the exhaust assembly 30 also includes a blocking member 32 installed on the closed end 311. The blocking member 32 can be snapped into the second guide member 31 for easy disassembly and replacement. An annular funnel-shaped blocking portion 321 is formed on the blocking member 32. The large-diameter end of the blocking portion 321 is located above the small-diameter end of the blocking portion 321, so that the blocking portion 321 gradually tilts outward from bottom to top. The blocking portion 321 surrounds the area on the second guide member 31 where the through hole 312 is opened, making the flow path of gas in the liquid storage chamber 11 more meandering. This not only extends the flow path of gas into the exhaust assembly 30, but also prevents foam floating on the liquid surface from entering the second guide member 31 under the influence of airflow.

[0058] In other alternative embodiments, the closed end 311 and the blocking member 32 are integrated.

[0059] Furthermore, in this embodiment, as Figures 1 to 3 and Figure 5 As shown, the exhaust assembly 30 also includes an exhaust pipe 33 and a second filter 34. The exhaust pipe 33 is located outside the liquid storage component 10 and communicates with the second guide component 31, allowing gas flowing into the second guide component 31 to be discharged through the exhaust pipe 33. The second filter 34 is installed on the second guide component 31. Along the gas flow path, the second filter 34 is located downstream of the through hole 312. The second filter 34 can be made of an absorbent component such as a sponge, which can absorb water. This allows the second filter 34 to absorb water vapor in the gas, further improving the reliability of preventing liquid from entering the negative pressure unit. In addition, the second filter 34 preferably also has a sound insulation function. The sponge material can achieve both water absorption and sound insulation effects to reduce the noise of the water-gas separation device during use.

[0060] Furthermore, in this embodiment, such as Figures 1 to 5 As shown, the water-air separation device also includes a first adapter 24 and a second adapter 35. The first adapter 24 and the second adapter 35 can be adapters or adapter covers. The first adapter 24 is connected to the inlet end of the first guide 21; the second adapter 35 is connected to the outlet end of the second guide 31; the first adapter 24 and the second adapter 35 are both installed on the liquid storage component 10, thus realizing the disassembly and assembly of the inlet component 20 and the exhaust component 30 with the liquid storage component 10.

[0061] In an embodiment, such as Figures 1 to 3As shown, the drainage assembly 40 includes a third guide member 41 installed at the bottom of the liquid storage chamber 11. The third guide member 41 is formed into a block structure or a plate structure. A drainage hole 411 is provided on the third guide member 41, and the upper surface of the third guide member 41 is formed into an inclined guide portion 412. The guide portion 412 can be formed into a funnel-shaped structure or an inclined surface structure to facilitate liquid collection. The drainage hole 411 is located at the lowest point of the guide portion 412 so that the liquid can be completely drained.

[0062] Optionally, the third guide 41 is integrated with the liquid storage component 10.

[0063] Furthermore, such as Figures 1 to 3 As shown, the drainage assembly 40 also includes a drainage valve 42 connected to the drainage hole 411. The drainage valve 42 is preferably electrically controlled to open or close, so that when a certain amount of liquid accumulates in the storage chamber 11, the drainage valve 42 can be opened to discharge it uniformly.

[0064] The drainage assembly 40 also includes a sealing element 43 sandwiched between the third guide member 41 and the cavity wall of the storage chamber 11. The sealing element 43 is an annular sealing ring, thus preventing liquid from entering between the bottom of the third guide member 41 and the bottom of the storage chamber 11. Preferably, in this embodiment, sealing rings can be provided between the detachably connected components of the inlet assembly 20 and the outlet assembly 30, as well as between the inlet assembly 20 and the outlet assembly 30 and the connection between them and the storage chamber 10, to improve the sealing performance of the water-air separation device.

[0065] Furthermore, in this embodiment, the water-air separation device also includes a liquid level detection component 50 installed in the liquid storage chamber 11. The liquid level detection component 50 includes at least one liquid level sensor to detect the liquid level height in the liquid storage chamber 11. Preferably, the liquid level detection component 50 is communicatively connected to the drain valve 42, so that when the liquid level reaches a preset drain height, the drain valve 42 automatically opens to drain the liquid.

[0066] The water-gas separation device according to this utility model includes a liquid storage component, an inlet component, an outlet component, and a drain component. The liquid storage component has a storage cavity inside. The inlet component, outlet component, and drain component are respectively connected to the storage cavity. The inlet component and outlet component are both positioned above the drain component. The inlet component includes a first guide extending into the storage cavity. The water-gas mixture enters the storage cavity through the first guide component. The liquid in the water-gas mixture is discharged from the drain component under gravity, and the gas in the water-gas mixture is discharged from the outlet component under negative pressure suction. A protruding partition is provided at the end of the first guide component away from the outside of the liquid storage component. The partition is located on the side of the first guide component near the outlet component to extend the flow path of the gas in the water-gas mixture into the outlet component, thereby helping the liquid to separate from the gas before entering the outlet component. It also uses a blocking component to prevent foam from entering the second guide component, improving the situation of liquid and foam entering the negative pressure pipeline, ensuring the performance of the negative pressure machine, extending the service life of the negative pressure machine, and enabling the water-gas separation device to meet the needs of suctioning liquid from the patient's oral cavity during treatment.

[0067] According to the second aspect of this utility model, a negative pressure machine includes the above-mentioned water-gas separation device, and thus has all the beneficial effects of a water-gas separation device, which will not be repeated here.

[0068] A dental chair according to the third aspect of this utility model includes the above-mentioned water-air separation device, and thus has all the beneficial effects of a water-air separation device, which will not be repeated here.

[0069] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A water-gas separation device, characterized in that, The water-gas separation device includes a liquid storage component, an inlet component, an outlet component, and a drain component. The liquid storage component has a liquid storage cavity inside. The inlet component, the outlet component, and the drain component are respectively connected to the liquid storage cavity. The inlet component and the outlet component are both located above the drain component. The inlet assembly includes a first guide extending into the liquid storage chamber, through which the water-gas mixture enters the liquid storage chamber; a protruding partition is provided at one end of the first guide away from the outside of the liquid storage chamber, and the partition is provided on the side of the first guide near the exhaust assembly to extend the flow path of the gas in the water-gas mixture into the exhaust assembly.

2. The water-gas separation device according to claim 1, characterized in that, The access component also includes: An inlet pipe is disposed outside the liquid storage component and communicates with the first guide component; A first filter element is disposed within the first guide element, and at least a portion of the partition portion is disposed below the first filter element.

3. The water-gas separation device according to claim 1, characterized in that, The exhaust assembly includes: The second guide extends into the liquid storage cavity, and the end of the second guide away from the outside of the liquid storage component is formed as a closed end. A through hole is formed on the side wall of the second guide.

4. The water-gas separation device according to claim 3, characterized in that, The exhaust assembly also includes: A blocking member is installed on the closed end. The blocking member has an annular funnel-shaped blocking portion. The large-diameter end of the blocking portion is located above the small-diameter end of the blocking portion. The blocking portion surrounds the area on the second guide member where the through hole is opened.

5. The water-gas separation device according to claim 3 or 4, characterized in that, The exhaust assembly also includes: An exhaust pipe is disposed outside the liquid storage component and communicates with the second guide component; A second filter element is installed on the second guide element; along the gas flow path, the second filter element is disposed downstream of the through hole.

6. The water-gas separation device according to claim 3, characterized in that, The water-gas separation device also includes: The first adapter is connected to the inlet end of the first guide; The second adapter is connected to the outlet end of the second guide; Both the first adapter and the second adapter are installed on the liquid storage device.

7. The water-gas separation device according to claim 1, characterized in that, The drainage assembly includes: The third guide is installed at the bottom of the liquid storage chamber; the third guide has a drainage hole, and the upper surface of the third guide is formed as an inclined guide portion, with the drainage hole located at the lowest point of the guide portion.

8. The water-gas separation device according to claim 7, characterized in that, The drainage assembly also includes: The drain valve is connected to the drainage hole; A sealing element is sandwiched between the third guide and the cavity wall of the liquid storage chamber.

9. A negative pressure machine, characterized in that, The water-gas separation device includes any one of claims 1 to 8.

10. A dental chair, characterized in that, The water-gas separation device includes any one of claims 1 to 8.

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