CN219681286U - Negative pressure drainage device - Google Patents
Negative pressure drainage device Download PDFInfo
- Publication number
- CN219681286U CN219681286U CN202320856317.XU CN202320856317U CN219681286U CN 219681286 U CN219681286 U CN 219681286U CN 202320856317 U CN202320856317 U CN 202320856317U CN 219681286 U CN219681286 U CN 219681286U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- drainage device
- pressure cavity
- liquid inlet
- extraction opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000000605 extraction Methods 0.000 claims abstract description 22
- 238000005192 partition Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 abstract description 3
- 206010036790 Productive cough Diseases 0.000 description 6
- 210000003802 sputum Anatomy 0.000 description 6
- 208000024794 sputum Diseases 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- External Artificial Organs (AREA)
Abstract
The utility model discloses a negative pressure drainage device, which relates to the field of drainage devices and comprises a shell, a piston cylinder and a negative pressure cavity, wherein the negative pressure cavity is communicated with the piston cylinder, a liquid inlet, a liquid outlet and an extraction opening which are arranged in a staggered manner are arranged in the negative pressure cavity, and a partition plate for preventing the extraction opening from being directly communicated with the liquid inlet is arranged between the extraction opening and the liquid inlet. The utility model has the advantages of easy cleaning, safety and sanitation.
Description
Technical Field
The utility model relates to the field of drainage devices, in particular to a negative pressure drainage device.
Background
The existing negative pressure drainage device can also be called a sputum aspirator, such as a handheld sputum aspirator disclosed in publication No. CN2836810Y 2006.11.15, and a liquid inlet and an air extraction opening in the structure are directly and oppositely arranged, so that sputum is easy to enter a piston, difficult to clean and not in accordance with the sanitary standard.
Disclosure of Invention
In order to overcome the defects of the background technology, the utility model provides the negative pressure drainage device which is easy to clean, safe and sanitary.
The utility model adopts the technical scheme that: the negative pressure drainage device comprises a shell, a piston cylinder and a negative pressure cavity, wherein the negative pressure cavity is communicated with the piston cylinder, a liquid inlet, a liquid outlet and an extraction opening which are arranged in a staggered mode are arranged in the negative pressure cavity, and a partition plate for preventing the extraction opening from being directly communicated with the liquid inlet is arranged between the extraction opening and the liquid inlet.
Preferably, the negative pressure cavity comprises a rear seat inserted at the front end of the shell and a front cover in sealing fit with the rear seat, the liquid inlet, the liquid outlet and the partition plate are all arranged on the front cover, and the air extraction opening is arranged on the rear seat.
Preferably, the front cover and the rear seat are connected in a sleeved mode, and a sealing ring is arranged between the front cover and the rear seat.
Preferably, the negative pressure cavity is communicated with the piston cylinder by a telescopic hose.
Preferably, a piston plate in sealing sliding fit and a piston rod connected with the piston plate are arranged in the piston cylinder, and elastic pieces with two ends respectively abutting against the piston plate and the inner wall of the piston cylinder are sleeved on the piston rod.
Preferably, the tail end of the piston rod is provided with an integrally formed grab handle, and the shell is provided with an avoidance opening for the grab handle to move.
Preferably, a liquid collecting barrel communicated with the liquid outlet is arranged below the negative pressure cavity, and the bottom of the liquid collecting barrel is flush with the bottom of the shell.
The beneficial effects of the utility model are as follows: according to the technical scheme, the staggered extraction opening and the liquid inlet are arranged in the negative pressure cavity, and the partition plate is arranged between the extraction opening and the liquid inlet, so that sputum entering from the liquid inlet can be effectively prevented from entering the extraction opening, and the vacuum suction device has the advantages of easiness in cleaning, safety and sanitation.
Drawings
Fig. 1 is a schematic structural diagram of a negative pressure drainage device according to an embodiment of the present utility model.
FIG. 2 is a cross-sectional view of a negative pressure diverter.
Fig. 3 is a schematic diagram of a split structure of the negative pressure drainage device.
Detailed Description
Embodiments of the utility model are further described below with reference to the accompanying drawings:
as shown in the figure, the negative pressure drainage device comprises a shell 1, a piston cylinder 2 and a negative pressure cavity 3, wherein the negative pressure cavity 3 is communicated with the piston cylinder 2, a liquid inlet 4, a liquid outlet 5 and an extraction opening 6 which are arranged in a staggered manner are arranged in the negative pressure cavity 3, and a partition 7 for preventing the extraction opening 6 from being directly communicated with the liquid inlet 4 is arranged between the extraction opening 6 and the liquid inlet 4; according to the technical scheme, the staggered extraction opening and the liquid inlet are arranged in the negative pressure cavity, and the partition plate is arranged between the extraction opening and the liquid inlet, so that sputum entering from the liquid inlet can be effectively prevented from entering the extraction opening, and the vacuum suction device has the advantages of easiness in cleaning, safety and sanitation.
The negative pressure cavity 3 comprises a rear seat 8 inserted at the front end of the shell 1 and a front cover 9 in sealing fit with the rear seat 8, the liquid inlet 4, the liquid outlet 5 and the partition plate 7 are all arranged on the front cover 9, the air extraction opening 6 is arranged on the rear seat 8, the front cover 9 and the rear seat 8 are connected in a sleeved mode, a sealing ring 10 is arranged between the front cover 9 and the rear seat 8, and the negative pressure cavity 3 is communicated with the piston cylinder 2 through a telescopic hose 11; the front cover and the rear seat are matched to form a cavity, the rear seat is inserted at the front end of the shell and is communicated with the telescopic hose, the piston cylinder enables negative pressure to be formed in the cavity through the telescopic hose, and the liquid inlet can be used for extracting sputum and falls into a liquid outlet below.
A piston plate 12 in sealing sliding fit and a piston rod 13 connected with the piston plate 12 are arranged in the piston cylinder 2, and an elastic piece 14 with two ends respectively abutting against the piston plate 12 and the inner wall of the piston cylinder 2 is sleeved on the piston rod 13; the end of the piston rod 13 is provided with an integrally formed grab handle 15, the shell 1 is provided with an avoidance opening 16 for the grab handle 15 to move, an operator can hold the shell, four fingers are inserted into the grab handle to drive the piston cylinder and the piston plate to move backwards, at the moment, the negative pressure cavity can generate negative pressure, after the fingers are loosened, the piston plate is reset under the action of the elastic piece, and the negative pressure cavity can restore to a normal pressure value.
The elastic piece adopts a spring.
The negative pressure cavity 3 below is equipped with the liquid collection bucket 17 of intercommunication liquid outlet 5, liquid collection bucket 17 bottom flushes with the bottom of casing 1, and whole negative pressure drainage ware can be placed on the desk, and the waste liquid of liquid collection bucket can not pour.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (7)
1. Negative pressure drainage ware, its characterized in that: the vacuum pump comprises a shell (1), a piston cylinder (2) and a negative pressure cavity (3), wherein the negative pressure cavity (3) and the piston cylinder (2) are mutually communicated, a liquid inlet (4), a liquid outlet (5) and an extraction opening (6) which are arranged in a staggered mode are arranged in the negative pressure cavity (3), and a partition plate (7) for preventing the extraction opening (6) and the liquid inlet (4) from being directly communicated is arranged between the extraction opening (6) and the liquid inlet (4).
2. The negative pressure drainage device according to claim 1, wherein: the negative pressure cavity (3) comprises a rear seat (8) inserted at the front end of the shell (1) and a front cover (9) in sealing fit with the rear seat (8), the liquid inlet (4), the liquid outlet (5) and the partition plate (7) are all arranged on the front cover (9), and the air extraction opening (6) is arranged on the rear seat (8).
3. The negative pressure drainage device according to claim 2, wherein: the front cover (9) and the rear seat (8) are connected in a sleeved mode, and a sealing ring (10) is arranged between the front cover and the rear seat.
4. The negative pressure drainage device according to claim 1, wherein: the negative pressure cavity (3) is communicated with the piston cylinder (2) through a telescopic hose (11).
5. The negative pressure drainage device according to claim 1, wherein: the piston cylinder (2) is internally provided with a piston plate (12) in sealing sliding fit and a piston rod (13) connected with the piston plate (12), and the piston rod (13) is sleeved with an elastic piece (14) with two ends respectively abutting against the piston plate (12) and the inner wall of the piston cylinder (2).
6. The negative pressure drainage device according to claim 5, wherein: the tail end of the piston rod (13) is provided with an integrally formed grab handle (15), and the shell (1) is provided with an avoidance opening (16) for the grab handle (15) to move.
7. The negative pressure drainage device according to claim 1, wherein: the negative pressure cavity (3) below is equipped with liquid collecting barrel (17) of intercommunication liquid outlet (5), liquid collecting barrel (17) bottom flushes with the bottom of casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320856317.XU CN219681286U (en) | 2023-04-18 | 2023-04-18 | Negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320856317.XU CN219681286U (en) | 2023-04-18 | 2023-04-18 | Negative pressure drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219681286U true CN219681286U (en) | 2023-09-15 |
Family
ID=87964720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320856317.XU Active CN219681286U (en) | 2023-04-18 | 2023-04-18 | Negative pressure drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219681286U (en) |
-
2023
- 2023-04-18 CN CN202320856317.XU patent/CN219681286U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |