JP2006288648A - Reservoir for suction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reservoir for suction capable of stably being used without causing such a problem that a suction means sucks a waste liquid. <P>SOLUTION: The reservoir 1 for suction for sucking and collecting the waste liquid is equipped with a holding container 10 holding the waste liquid, a waste liquid side connecting member 20 introducing the waste liquid into the holding container 10, a suction side connecting member 30 discharging a gas from the holding container 10, the suction side connecting member 30 has a suction side inner tube 31 and suction side outer tube 34 having gas suction ports 32, 36 for sucking a gas respectively, and a gas suction channel from the gas suction port 36 of the suction side outer tube 34 to the gas suction port 32 of the suction side inner tube 31 is formed in the reservoir for suction 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to medical and other suction reservoirs.

  Conventionally, in medical institutions such as hospitals, suction pumps have been used to remove blood, exudate, secretions, etc. discharged from wounds created by surgery, or affected areas such as the oral cavity, throat, or nasal cavity A suction reservoir is used.

  As a suction reservoir, for example, the one shown in (Patent Document 1) is known. The suction reservoir shown in (Patent Document 1) is provided with a drainage port through which drainage flows and a suction port connected to a suction device such as a suction pump in the storage container. Is provided with a drainage backflow prevention valve so as not to flow back to the suction device.

  However, the suction reservoir as described above is provided with the drainage backflow prevention valve, but the prevention effect is not sufficient, and there is a problem that the suction pump sucks the drainage liquid and breaks down. .

  Specifically, since an impact is given when sucking in the storage container, the discharged liquid is mixed and scattered, so that the scattered liquid droplets may be sucked at the same time. Also, when the drainage amount of the storage container exceeds a certain amount and overflows, the drainage backflow prevention valve has a weak effect, and thus the liquid may be sucked in simultaneously with the gas.

Japanese Utility Model Publication No. 2-37651

  In view of the above-described conventional situation, an object of the present invention is to provide a suction reservoir that can be used stably without causing problems such as the suction means sucking in drainage liquid or the like.

  In order to solve the above problems, a suction reservoir according to the present invention is, as claimed in claim 1, a suction reservoir for sucking and collecting drainage, a storage container for storing drainage, and a drain A drain side connection member for introducing liquid into the storage container; and a suction side connection member for discharging gas from the storage container, each of the suction side connection members having an intake port for sucking gas. The suction side inner tube and the suction side outer tube are provided, and an intake path from the suction port of the suction side outer tube to the suction port of the suction side inner tube is formed.

  According to the above configuration, since the gas in the storage container is sucked into the suction port of the suction side inner pipe via the suction port of the suction side outer pipe, the liquid droplets of the drained liquid scattered in the storage container, etc. Can be prevented from being sucked into the suction means.

  According to a second aspect of the present invention, in the suction reservoir according to the first aspect, the suction port of the suction side outer tube is provided above the suction port of the suction side inner tube.

  According to the above configuration, since the suction port of the suction side outer tube is provided above the suction port of the suction side inner tube, it is possible to more reliably prevent the scattered liquid from being sucked into the suction means such as liquid droplets. be able to.

  According to a third aspect of the present invention, in the suction reservoir according to the first or second aspect, when the liquid level of the drainage collected in the storage container rises, suction from the suction port of the suction side inner tube is used. A float valve for closing the intake port is provided.

  According to the above configuration, when the amount of the drainage collected in the storage container increases and the liquid level rises to a predetermined water level, the float valve closes the suction port of the suction side inner pipe. Suction can be stopped.

  According to a fourth aspect of the present invention, in the suction reservoir according to the third aspect, a liquid inflow port through which the drainage flows into the suction side outer tube is provided, and the float that rises as the drainage flows into the suction side outer tube. A valve is provided.

  According to the above configuration, the float valve rises as the drainage flows from the liquid inlet and closes the suction port of the suction side inner tube, so that the level of the drainage collected in the storage container rises. At this time, it becomes possible to automatically stop the suction of the drainage.

  According to a fifth aspect of the present invention, in the suction reservoir according to the fourth aspect, the liquid inlet of the suction side outer tube is provided below the intake port of the suction side inner tube.

  According to the above configuration, since the liquid inlet of the suction side outer tube is provided below the intake port of the suction side inner tube, the drained liquid that has flowed in from the liquid inlet is sucked from the intake port of the suction side inner tube. Can be prevented.

  According to a sixth aspect of the present invention, in the suction reservoir according to the fourth or fifth aspect, a convex portion or a concave portion is provided on a side surface of the float valve.

  According to the above configuration, since the convex portion or the concave portion is provided on the side surface of the float valve, the drainage does not rise due to the capillary phenomenon in the gap between the suction side outer tube and the float valve.

  Further, according to a seventh aspect of the present invention, in the suction reservoir according to any one of the fourth to sixth aspects, a convex portion or a concave portion is provided on a portion of the lower surface of the float valve that contacts the suction side outer tube. To do.

  According to the above configuration, the contact area between the lower surface of the float valve and the suction side outer tube is reduced, and the surface tension acting between them is reduced, so that the float valve can move smoothly.

  Further, according to an eighth aspect of the present invention, in the suction reservoir according to any one of the third to seventh aspects, the float valve is provided with a packing at a portion in contact with the intake port.

  According to the above configuration, the float valve comes into close contact with the suction port of the suction side inner pipe, so that the drainage can be reliably stopped.

  According to a ninth aspect of the present invention, in the suction reservoir according to any one of the third to eighth aspects, the float valve is provided with a suction promoting member for promoting suction from the suction port of the suction side inner pipe. Features.

  According to the above configuration, since the float valve promotes suction from the suction port of the suction side inner pipe, it is possible to close the suction port more quickly.

  Further, according to a tenth aspect of the present invention, in the suction reservoir according to any one of the first to ninth aspects, a wave removing member for stabilizing the liquid level of the drained liquid collected in the storage container is provided below the suction side outer tube. It is provided.

  According to the above configuration, since the liquid level of the drainage collected in the storage container is stabilized, the scattering of the liquid in the storage container can be reduced.

  The suction reservoir according to any one of claims 1 to 10, wherein the drainage side connecting member includes a drainage side inner tube each having a drainage port for discharging the liquid, and A drainage-side suction primary chamber is formed in the space surrounded by the drainage-side outer tube and the drainage-side outer tube to reduce the impact of suction. A liquid discharge path is formed from the drain port to the drain port of the drain side outer tube through the drain side suction primary chamber.

  According to the above configuration, the sucked drainage is introduced into the drainage side suction primary chamber and then discharged from the drainage port of the drainage side outer tube, so that the impact during suction is reduced.

  Further, according to a twelfth aspect of the present invention, in the suction reservoir according to the eleventh aspect, the drain side inner pipe and the drain side outer pipe have an exhaust port for discharging gas, and the exhaust side inner pipe is provided with an exhaust port. A gas discharge path to the exhaust port of the drain side outer pipe is formed.

  According to the above configuration, since the exhaust port is provided separately from the drain port on the drain side connection member, the impact when sucking the drain is reduced, and the scattering of the liquid in the storage container is reduced.

  According to a thirteenth aspect of the present invention, in the suction reservoir according to the twelfth aspect, the exhaust port of the drain side outer tube is provided above the drain port of the drain side inner tube.

  According to the above configuration, since the exhaust port of the drain side outer pipe is provided above the drain port of the drain side inner pipe, separation of the drained liquid and the gas sucked simultaneously with the drained liquid at the time of suction is performed. Is promoted.

  Further, according to a fourteenth aspect of the present invention, in the suction reservoir according to any one of the first to eleventh aspects, a resistance member that prevents discharge of the drainage is provided inside the drainage side inner tube or the drainage side outer tube. Features.

  According to the above configuration, since the drainage of the drainage is hindered by the resistance member, the impact applied to the liquid level in the storage container when the drainage is sucked is reduced.

  Furthermore, the present invention provides, as a fifteenth aspect, a suction reservoir for sucking and collecting the drainage, a storage container for storing the drainage, and a drainage for introducing the drainage into the storage container A side connection member, and a suction side connection member that discharges gas from the storage container, and the drain side connection member includes a drain side inner pipe each having a drain port for discharging the drainage, and A drain side suction primary chamber is formed in a space surrounded by the drain side pipe and the drain side outer pipe to reduce the impact of suction. A liquid discharge path is formed from the drain port to the drain port of the drain side outer tube through the drain side suction primary chamber.

  According to the above configuration, the sucked drainage is introduced into the drainage-side suction primary chamber and then discharged from the drainage port of the drainage-side outer tube, so that the impact during suction is reduced.

  Further, according to a sixteenth aspect of the present invention, in the suction reservoir according to the fifteenth aspect, the drainage-side inner tube and the drainage-side outer tube are provided with an exhaust port for discharging gas, A gas discharge path to the exhaust port of the drain side outer pipe is formed.

  According to the above configuration, since the exhaust port is provided separately from the drain port on the drain side connection member, the impact when sucking the drain is reduced, and the scattering of the liquid in the storage container is reduced.

  According to a seventeenth aspect of the present invention, in the suction reservoir according to the sixteenth aspect, the exhaust port of the drainage side drainage side outer tube is provided above the drainage port of the drainage side drainage side inner tube. Features.

  According to the above configuration, since the exhaust port of the drain side outer pipe is provided above the drain port of the drain side inner pipe, separation of the drained liquid and the gas sucked simultaneously with the drained liquid at the time of suction is performed. Is promoted.

  Further, according to claim 18, in the suction reservoir according to any one of claims 15 to 17, a resistance member that prevents drainage is provided inside the drainage side inner tube or the drainage side outer tube. Features.

  According to the above configuration, since the drainage of the drainage is hindered by the resistance member, the impact applied to the liquid level in the storage container when the drainage is sucked is reduced.

  According to the suction reservoir of the present invention, the suction means can be used stably without causing problems such as suction of drainage liquid and the like. Moreover, the mixing effect of the liquid produced when the drainage liquid is introduced into the storage container is reduced, and the drainage liquid can be prevented from scattering in the storage container.

  Hereinafter, the best mode for carrying out the present invention will be described in detail. First, the suction reservoir according to the embodiment (1) will be described with reference to FIGS. FIG. 1 is a cross-sectional view showing a suction reservoir according to an embodiment of the present invention.

  As shown in FIG. 1, the suction device 1 according to the embodiment is a suction reservoir 1 for sucking and collecting the drainage A, a storage container 10 for storing the drainage A, A drainage side connection member 20 that introduces the liquid A into the storage container 10, and a suction side connection member 30 that connects the storage container 10 and the suction unit and discharges gas from the storage container 10 are provided.

  The storage container 10 is for collecting and storing the drainage, and the lid 11 of the storage container 10 is attached with a connection member for attaching a drainage side connection member 20 and a suction side connection member 30 to be described later. Holes 12 and 13 are provided. The connection member attachment holes 12 and 13 include packings 14 and 15 respectively so that leakage does not occur when the connection members 20 and 30 are attached.

  The storage container 10 is provided with a preliminary mounting hole 17 for connecting to a plurality of suction reservoirs when a plurality of suction reservoirs are used in conjunction. When used alone, the preliminary mounting hole 17 is sealed with a plug member 18. A packing 16 is also provided in the preliminary mounting hole 17 in the same manner as the connection member mounting holes 12 and 13.

  As shown in FIG. 2, the drainage side connecting member 20 is for introducing the drainage A into the storage container 10, and the drainage side inner pipe 21 provided through the lid 11 of the storage container 10. A drainage side outer tube 25 provided outside the drainage side inner tube 21. Then, a drain side suction primary chamber 200 surrounded by the drain side inner pipe 21 and the drain side outer pipe 25 is formed.

  The drain side inner pipe 21 has a cylindrical shape, and a drain or the like is introduced into the drainage inlet 22 of the upper end portion 211 protruding outside the storage container 10 by introducing a tube or the like. The introduced drainage A is mainly discharged from the drainage port 23 provided on the bottom surface of the lower end 213 of the drainage side inner pipe 21. Further, when sucking, the gas B may be sucked together with the drainage A. On the side surface of the main cylinder 212 of the drainage side inner pipe 21, an exhaust port 24 for mainly discharging the gas B sucked simultaneously with the drainage A is provided. In addition, it is preferable that the exhaust port 24 is provided above the drainage port 23 from the viewpoint of separation of the drainage A and the gas B.

  The drainage side outer tube 25 is provided with an attachment hole 26 for attaching the drainage side inner tube 21 to the lid portion 251 at the upper end. The drainage A discharged from the drainage side inner pipe 21 is discharged into the storage container 10 through the drainage port 27 of the lower end portion 253 of the drainage side outer pipe 25. The drainage port 27 is formed to have a tube diameter smaller than the inner diameter of the main tube 152, and the space surrounded by the drainage side outer tube 25 and the drainage side inner tube 21 is drained to reduce the suction impact. A liquid side suction primary chamber 200 is formed. Thereby, when the drainage A is sucked, the impact given to the drainage liquid surface in the storage container 10 is reduced, and the pulsation of the drainage suction amount at the time of suction can be reduced. Further, a resistance member 29 for reducing the discharge rate of the drainage A is provided inside the outer tube 25 so as to cross the tube. Since the drainage of the drainage A is resisted by the resistance member 29, the separation of the drainage A and the gas B is further promoted, and the impact given to the drainage liquid surface in the storage container 10 when sucked is reduced. . In addition, an exhaust port 28 is provided on the side surface of the main cylinder 252 of the drainage side outer tube 25 in the same manner as the drainage side inner tube 21, and a discharge path of the gas B from the exhaust port 24 to the exhaust port 28 is provided. The gas B formed and discharged from the exhaust port 24 is discharged into the storage container 10. The exhaust port 28 is preferably provided above the drain port 27 from the viewpoint of separation of the drainage A and gas B, and further provided above the drain port 23 of the drain side inner pipe 21. It is particularly preferred that

  In the drainage side connecting member 20 described above, the sucked drainage A and gas B are first introduced from the drainage inlet 22 into the drainage side inner tube 21. Then, the drainage A and the gas B are separated into a drainage port 23 and an exhaust port 24 provided in the drainage side inner tube 21, respectively, and are discharged to the drainage side suction primary chamber 200. Subsequently, the drainage A discharged from the drainage port 23 is discharged into the storage container 10 through the drainage port 27 of the drainage side outer tube 25. At this time, the pressure reduction due to the suction of the suction means is performed stepwise in the drain side suction primary chamber 200 and the storage container 10, so that the impact applied to the drain liquid level in the storage container 10 during suction is reduced. The Further, the gas B exhausted from the exhaust port 24 passes through the gap between the drain side outer tube 25 and the drain side inner tube, and enters the storage container 10 from the exhaust port 28 of the drain side outer tube 25. Discharged. At this time, the drainage A and the gas B are further separated by the drainage port 27 and the exhaust port 28 provided in the drainage side outer tube 25.

  As shown in FIG. 3, the suction-side connecting member 30 is for connecting the storage container 10 and the suction means, and is provided with a suction-side inner pipe 31 provided through the lid 11 of the storage container 10. And a suction side outer tube 34 provided outside the suction side inner tube 31. The suction side connection member 30 is formed with a suction side suction primary chamber 300 surrounded by the suction side inner tube 31 and the suction side outer tube 34. Further, a float valve that closes the suction port 38 by suction from the suction port 32 of the suction side inner tube 31 when the liquid level of the drainage A rises in the storage container 10 inside the suction side outer tube 34. 40 is provided.

  The suction side inner pipe 31 has a cylindrical shape, and the gas B is sucked from the air inlet 32 provided on the bottom surface of the lower end portion 312. Further, a tube or the like for connecting to the suction means is attached to the intake outlet 33 of the upper end portion 311 protruding to the outside of the storage container 10.

  The suction side outer tube 34 is provided with an attachment hole 35 for attaching the suction side inner tube 31 to the lid portion 341 at the upper end. An intake port 36 for mainly sucking the gas B in the storage container 10 is provided on the upper side surface of the suction side outer tube 342. The intake port 36 is provided above the intake port 32 of the suction side inner pipe 31, and the suction of liquid droplets from the intake port 32 is prevented. Furthermore, a liquid inlet 37 into which the drainage A flows when the level of the drainage A collected in the storage container 10 rises is provided on the side surface of the lower end 343 of the suction side outer pipe 34. . Since the liquid inlet 37 is provided on the side surface, the internal float valve 40 is not directly affected by the disturbance of the liquid level of the drainage A. The intake port 32 and the intake port 36 are provided above the liquid inflow port 37 so as not to suck the drained liquid A together with the gas B.

  A wave removing member 38 is provided as a lid on the bottom surface of the lower end 342 of the suction side outer tube 34. The wave removing member 38 stabilizes the liquid level of the drained liquid collected in the storage container 10, and particularly reduces the disturbance of the liquid level of the drained liquid A near the liquid inlet 34 of the suction side outer tube 34. As the wave removing member 38, one having an area larger than the outer diameter of the suction side outer tube 34 is used.

  Further, a float valve 40 is provided inside the suction side outer pipe 34 at a position below the intake port 32 of the suction side inner pipe 31. As shown in FIG. 4, the float valve 40 includes a cylindrical body 43 that is hollow inside, and an upper lid 42 and a lower lid 44 are provided on the upper end portion and the lower end portion of the cylindrical body 43, respectively. Since the hollow cylindrical body 43 is used, the float valve 40 has sufficient buoyancy, and a large difference in level between the liquid level of the drainage A and the upper cover of the float valve 40 can be obtained. Since the cylinder 43 is hollow, a weight balance member for adjusting the center of gravity or buoyancy of the float valve 40 can be provided inside.

  The lower lid 44 has a diameter smaller than the inner diameter of the suction side outer tube 34. The clearance between the lower lid 44 and the suction side outer tube 34 is preferably a clearance that does not cause excessive resistance when the float valve 40 moves in accordance with the fluctuation of the liquid level. The diameter of the lower lid 44 is preferably larger than the outer diameter of the cylindrical body 43 so that the convex portion 441 is formed on the side surface of the float valve 40. Since the convex portion 441 causes a step between the cylindrical body 43, the drainage A does not rise in the gap between the float valve 40 and the suction side outer tube 34 due to capillary action.

  The upper lid 42 has a diameter similar to that of the lower lid 44 so as to form a convex portion 421 on the side surface of the float valve 40. By providing the convex portion 421, the float valve 40 is not greatly inclined and the direction is stabilized. Furthermore, there is an effect of reducing the rise of the drainage A due to the capillary phenomenon.

  Further, a packing 41 is provided on the surface of the upper lid 42 of the float valve 40 facing the intake port 32 of the suction side inner pipe 31. As the packing 41, a soft material is used, and the airtightness between the float valve 40 and the air inlet 32 is improved.

  The upper lid 42 of the float valve 40 is provided with a suction promoting member 46 for promoting the suction of the float valve 40 from the intake port 32. The suction promoting member 46 has a cylindrical shape whose inner diameter is larger than the outer diameter of the suction side inner tube 31, and the bottom surface of the lower end portion is fixed to the upper lid 42. When the float valve 40 approaches the intake port 32 as the liquid level of the drainage A rises, the suction from the intake port 32 is concentrated in the internal space of the suction promoting member 40. As a result, the suction force for sucking the float valve 40 increases, and the intake port 32 is quickly closed. For this reason, the suction can be stopped at a position where the liquid level of the drainage A is low.

  The lower cover 44 of the float valve 40 is provided with a convex portion 45 on the surface of the suction side outer tube 34 that faces the wave removal member 38. The convex portion 45 is for reducing the contact area between the float valve 40 and the wave removal member 38. When the drainage liquid A flows between the float valve 40 and the wave removal member 38, the movement of the float valve 40 is caused. The followability to the water level fluctuation of the liquid level is improved without receiving resistance due to surface tension. Note that the number, shape, and size of the convex portions 45 can be set as appropriate.

  In the suction side connection member 30 described above, the gas B sucked into the storage container 10 is sucked into the suction side suction primary chamber 300 from the suction port 36 of the suction side outer tube 34. Subsequently, the gas B is sucked from the suction port 32 of the suction side inner tube 31 through the gap between the suction side outer tube 34 and the suction side inner tube 31. The gas B sucked from the suction port 32 is sucked by the suction means through the suction outlet port 33. At this time, since a straight intake path is not formed between the intake port 36 and the intake port 32, the inhalation of liquid droplets of the drainage A is prevented. In addition, since the intake port 32 is spaced above the liquid inlet 37, the drainage A is not sucked even when the liquid level of the drainage A rises.

  Next, when the liquid level of the drainage A collected by suction rises and reaches the lower end 343 of the suction side outer tube 34, the drainage A flows into the suction side outer tube 34 from the liquid inlet 37. To do. At this time, the wave removal member 38 prevents the liquid level of the drainage A from being disturbed. When the drainage liquid A flows into the suction side outer pipe 34, the float valve 40 rises as the drainage liquid A flows. At this time, the float valve 40 has sufficient buoyancy, and the difference in height between the liquid level of the drainage A and the upper end of the float valve 40 becomes large, so that the drainage A can be sucked in at the time of suction. Absent.

  Subsequently, when the float valve 40 rises to a certain height, the volume surrounded by the suction side outer tube 34 and the float valve 40 decreases, and the suction force from the suction port 32 in the suction side suction primary chamber 300 increases. As a result, the float valve 40 receives the suction force from the suction port 32 of the suction side inner pipe 31 and closes the suction port 32 as shown in FIG. At this time, by providing the suction promoting member 46, the suction port 32 can be closed at a position where the liquid level of the drainage A is low. When the intake port 32 is closed, the intake path between the inside of the storage container 10 and the suction means is blocked, and the suction of the drainage A is stopped.

  In the embodiment (1), the drainage side inner tube 21, the drainage side outer tube 25, the suction side inner tube 31, and the suction side outer tube 34 are cylindrical. The shape is not limited, and various shapes such as a hollow polygonal shape can be used.

  In the embodiment (1), the drain side inner pipe 21 is attached to the mounting hole 26 provided in the lid 251 of the drain side outer pipe 25. However, the drain side inner pipe 21 is stored in the storage container. It is also possible to fix directly to the 10 lids 11. In this case, the lid portion 251 is not necessary, and the main cylinder 252 of the drainage side outer tube 25 can be directly fixed to the lid portion 11.

  In the embodiment (1), the resistance member 29 is provided inside the outer tube 25, but a resistance member can also be provided inside the inner tube 21. Moreover, the shape of a resistance member can select various shapes, such as spherical shape, plate shape, and screw shape.

  Furthermore, in the above embodiment (1), by providing a convex portion on the lower surface of the float valve 40, the contact area between the wave eliminating member 38 and the float valve 40 is reduced. It is also possible to provide a convex part or a concave part.

It is sectional drawing which shows the inhaler which concerns on embodiment of this invention. It is sectional drawing which shows the drainage side connection member which concerns on embodiment of this invention. (A) It is sectional drawing which shows the suction side connection member which concerns on embodiment of this invention. (B) It is sectional drawing which shows the state which the attraction | suction of the attraction | suction side connection member which concerns on embodiment of this invention stopped. It is sectional drawing which shows the float valve valve | bulb which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suction reservoir 10 Storage container 11, 12 Connection member attachment hole 13, 14, 15 Packing 16 Preliminary attachment hole 17 Plug member 20 Drainage side connection member 21 Drainage side inner pipe 22 Drainage introduction port 23 Drainage port 24 Exhaust port 25 Drain side outer tube 26 Inner tube mounting hole 27 Drain port 28 Exhaust port 29 Resistance member 30 Suction side connecting member 31 Suction side inner tube 32 Intake port 33 Intake outlet port 34 Suction side outer tube 35 Inner tube mounting hole 36 Inlet port 37 Liquid inlet port 38 Wave removing member 40 Float valve 41 Packing 42 Upper lid 421 Protruding portion 43 Cylindrical body 44 Lower lid 441 Protruding portion 45 Protruding portion 46 Suction promoting member

Claims (18)

A suction reservoir for aspirating and collecting drainage,
A storage container for storing drainage, a drainage side connection member for introducing drainage into the storage container, and a suction side connection member for discharging gas from the storage container,
The suction-side connecting member has a suction-side inner tube and a suction-side outer tube each having an intake port for sucking gas, and is connected from the suction port of the suction-side outer tube to the suction port of the suction-side inner tube. A suction reservoir in which an intake path is formed.   2. The suction reservoir according to claim 1, wherein the suction port of the suction side outer tube is provided above the suction port of the suction side inner tube.   3. The suction reservoir according to claim 1 or 2, wherein when the liquid level of the drainage collected in the storage container rises, the suction port is blocked using suction from the suction port of the suction side inner tube. A suction reservoir, characterized in that a float is provided.   The suction reservoir according to claim 3, wherein a liquid inflow port through which drainage flows into the suction side outer tube is provided, and a float that rises with the inflow of drainage is provided inside the suction side outer tube. A suction reservoir.   5. The suction reservoir according to claim 4, wherein the liquid inlet of the suction side outer tube is provided below the intake port of the suction side inner tube.   The suction reservoir according to claim 4 or 5, wherein a convex portion or a concave portion is provided on a side surface of the float.   The suction reservoir according to any one of claims 4 to 6, wherein a convex portion or a concave portion is provided on a portion of the lower surface of the float that contacts the suction side outer tube.   The suction reservoir according to any one of claims 3 to 7, wherein a packing is provided on a portion of the float that comes into contact with the intake port.   9. The suction reservoir according to claim 3, wherein a suction promoting member for promoting suction from the suction port of the suction side inner pipe is provided on the float.   The suction reservoir according to any one of claims 1 to 9, wherein a wave removal member for stabilizing the liquid level of the drained liquid collected in the storage container is provided at a lower portion of the suction side outer tube. Reservoir.   11. The suction reservoir according to claim 1, wherein the drainage side connecting member has a drainage side inner tube and a drainage side outer tube each having a drainage port for discharging the liquid. In the space surrounded by the drain side inner pipe and the drain side outer pipe, a drain side suction primary chamber for reducing the impact of suction is formed, and the drain liquid is discharged from the drain port of the drain side inner pipe. A suction reservoir in which a liquid discharge path to the drain port of the drain side outer tube is formed through the side suction primary chamber.   12. The suction reservoir according to claim 11, wherein the drain side inner pipe and the drain side outer pipe are provided with exhaust ports for discharging gas, and the exhaust side exhaust pipe is exhausted from the drain side inner pipe exhaust port. A suction reservoir, wherein a gas discharge path to the mouth is formed.   13. The suction reservoir according to claim 12, wherein the exhaust port of the drain side outer tube is provided above the drain port of the drain side inner tube.   The suction reservoir according to any one of claims 11 to 13, wherein a resistance member that prevents discharge of drainage is provided inside the drainage inner tube or drainage outer tube. . A suction reservoir for aspirating and collecting drainage,
A storage container for storing drainage, a drainage side connection member for introducing drainage into the storage container, and a suction side connection member for discharging gas from the storage container,
The drainage side connecting member has a drainage side inner tube and a drainage side outer tube each having a drainage port for discharging drainage, and the drainage side inner tube and the drainage side outer tube A drain side suction primary chamber that reduces the impact of suction is formed in the space surrounded by the drain side, and the drain side of the drain side outer pipe is drained from the drain side of the drain side inner pipe through the drain side suction primary chamber. A suction reservoir in which a liquid discharge path to the mouth is formed.   16. The suction reservoir according to claim 15, wherein the drain side inner pipe and the drain side outer pipe are provided with an exhaust port for discharging gas, and the exhaust side exhaust pipe is exhausted from the exhaust port of the drain side inner pipe. A suction reservoir, wherein a gas discharge path to the mouth is formed.   17. The suction reservoir according to claim 16, wherein the exhaust port of the drain side drain side outer tube is provided above the drain port of the drain side drain side inner tube. .   The suction reservoir according to any one of claims 15 to 17, wherein a resistance member that prevents drainage is provided in the drain side inner tube or the drain side outer tube. .

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