CN211705410U - Improved negative pressure drainage bottle - Google Patents

Improved negative pressure drainage bottle Download PDF

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Publication number
CN211705410U
CN211705410U CN201921340993.1U CN201921340993U CN211705410U CN 211705410 U CN211705410 U CN 211705410U CN 201921340993 U CN201921340993 U CN 201921340993U CN 211705410 U CN211705410 U CN 211705410U
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CN
China
Prior art keywords
telescopic rod
drainage bottle
gear
rotating shaft
negative pressure
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.)
Expired - Fee Related
Application number
CN201921340993.1U
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Chinese (zh)
Inventor
赵芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Longhua District Central Hospital
Original Assignee
Shenzhen Longhua District Central Hospital
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201921340993.1U priority Critical patent/CN211705410U/en
Application granted granted Critical
Publication of CN211705410U publication Critical patent/CN211705410U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an improved negative pressure drainage bottle, which comprises a drainage bottle body and a fixing device, wherein four corners of the bottom surface of the drainage bottle body are respectively provided with a supporting leg, and one end of the supporting leg is rotationally connected with the bottom of the drainage bottle body; fixing device includes a U-shaped mounting and two fixed subassemblies, the U-shaped mounting is located along controlling the direction card the middle part of drainage bottle body bottom surface, two relative locating about the fixed subassembly on the U-shaped mounting, two fixed subassembly is respectively rather than two supporting legs pivotal connection who closes on mutually, be used for right the supporting legs is fixed, the utility model discloses can fix the supporting legs of drainage bottle, make it place more firm, simultaneously, used repeatedly can be dismantled to fixing device, resources are saved.

Description

Improved negative pressure drainage bottle
Technical Field
The utility model relates to the field of medical equipment, specific saying relates to a negative pressure drainage bottle of improvement.
Background
The traditional drainage bottle that each big hospital used at present, its bottom surface four corners department all is equipped with a rotatable supporting legs, nevertheless the supporting legs is unable fixed, makes when placing the supporting legs takes place to rotate because of external force easily to cause the drainage bottle to place unstably, take place to empty easily, and then influence going on of drainage operation.
Therefore, there is a need for further improvements in the prior art.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model aims to provide an improved negative pressure drainage bottle.
In order to achieve the above object, according to the utility model discloses a negative pressure drainage bottle of improvement, including drainage bottle body and fixing device.
Four corners of the bottom surface of the drainage bottle body are respectively provided with a supporting leg, and one end of each supporting leg is rotatably connected with the bottom of the drainage bottle body;
fixing device includes a U-shaped mounting and two fixed subassemblies, the U-shaped mounting is located along left right direction card the middle part of drainage bottle body bottom surface, two relative locating about the fixed subassembly on the U-shaped mounting, two fixed subassembly is rather than two supporting legs pivotal connection that close on mutually for it is right respectively the supporting legs is fixed.
In addition, according to the utility model discloses the negative pressure drainage bottle of improvement of above-mentioned embodiment can also have following additional technical characterstic:
according to the utility model discloses an embodiment, a mounting groove has been seted up to the front surface of U-shaped mounting, the mounting groove is followed the front surface of U-shaped mounting runs through to the rear surface, two relative installation about the fixed subassembly in the mounting groove.
According to the utility model discloses an embodiment, fixed subassembly includes first telescopic link, second telescopic link, first gear and second gear, first gear with relative locating around the second gear in the mounting groove, first gear with the second gear meshes mutually, the one end of first telescopic link with first gear fixed connection, the other end of first telescopic link rather than the one end pivotal connection of the supporting legs that closes on mutually, the one end of second telescopic link with second gear fixed connection, the other end of second telescopic link rather than the one end pivotal connection of the supporting legs that closes on mutually.
According to the utility model discloses an embodiment, the other end of first telescopic link is connected with first fastener, the front end card of first fastener is held in the side of supporting legs, the tail end of first fastener with the other end pivotal connection of first telescopic link, the other end of second telescopic link is connected with the second fastener, the front end card of second fastener is held in the side of supporting legs, the tail end of second fastener with the other end pivotal connection of second telescopic link.
According to the utility model discloses an embodiment, be equipped with control on the first telescopic link the locking piece of the flexible length of first telescopic link.
According to an embodiment of the present invention, a first rotating shaft is fixedly disposed in the middle of the first gear, two ends of the first rotating shaft protrude from the upper surface and the lower surface of the first gear respectively, two ends of the first rotating shaft are rotatably connected to the upper and lower groove walls of the mounting groove respectively, and one end of the first telescopic rod is connected to the first rotating shaft;
the middle part of the second gear is fixedly provided with a second rotating shaft, two ends of the second rotating shaft respectively protrude out of the upper surface and the lower surface of the second gear, two ends of the second rotating shaft are respectively rotatably connected with the upper groove wall and the lower groove wall of the mounting groove, and one end of a second telescopic rod is connected with the second rotating shaft.
According to an embodiment of the present invention, a first limit key is disposed on an upper end side wall of the first rotating shaft, a first mounting hole is disposed at one end of the first telescopic rod, one end of the first telescopic rod is sleeved on the first rotating shaft through the first mounting hole, a first key groove is disposed on a hole wall of the first mounting hole, and the first limit key is disposed in the first key groove;
the side face of the upper end of the second rotating shaft is provided with a second limiting key, one end of the second telescopic rod is provided with a second mounting hole, one end of the second telescopic rod is sleeved on the second mounting hole in the second rotating shaft, a second key groove is formed in the hole wall of the second mounting hole, and the second limiting key is arranged on the second key groove.
According to the utility model discloses an embodiment, all be equipped with a shell fragment on two inside walls of U-shaped mounting, the shell fragment with the side counterbalance of drainage bottle body.
According to the embodiment of the utility model provides a pair of negative pressure drainage bottle of improvement, when using, will U-shaped mounting is located along controlling the direction card the bottom surface of drainage bottle body, just it is relative about on the U-shaped mounting fixed subassembly, two fixed subassembly is rather than two supporting legs pivotal connection that close on mutually, so, accessible promptly when using fixed subassembly comes right the supporting legs is fixed, avoids the supporting legs is non-artificial and rotates to cause the drainage bottle to take place to empty, and then influence going on of drainage operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure in the embodiment of the present invention;
fig. 2 is another perspective view of the overall structure in the embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of a fixing member according to an embodiment of the present invention;
FIG. 4 is a partial plan view of a retaining assembly in an embodiment of the present invention;
fig. 5 is a schematic plan view of a U-shaped fixing member according to an embodiment of the present invention.
Reference numerals:
a drainage bottle body 10;
supporting legs 101;
a fixing device 20;
a U-shaped fixing member 201;
mounting grooves 2011;
a spring plate 2012;
a fixed component 202;
a first telescoping rod 2021;
a lock 20211;
a first mounting hole 20212;
a second telescoping rod 2022;
a second mounting hole 20221;
a first gear 2023;
a first rotating shaft 20231;
a second gear 2024;
a second rotating shaft 20241;
a first dog 2025;
a second catch 2026.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following describes in detail embodiments of the present invention with reference to the drawings.
Referring to fig. 1 to 5, an improved negative pressure drainage bottle according to an embodiment of the present invention comprises a drainage bottle body 10 and a fixing device 20,
four corners of the bottom surface of the drainage bottle body 10 are respectively provided with a supporting leg 101, and one end of each supporting leg 101 is rotatably connected with the bottom of the drainage bottle body 10;
fixing device 20 includes a U-shaped mounting 201 and two fixed subassemblies 202, U-shaped mounting 201 is located along left right direction card the middle part of drainage bottle body 10 bottom surface, two relative locating about fixed subassembly 202 on the U-shaped mounting 201, two fixed subassembly 202 is rather than two supporting legs 101 pivotal connection that close to mutually respectively, it is right to be used for supporting legs 101 fixes.
Based on the aforesaid, when using, will U-shaped mounting 201 is located along left right direction card the bottom surface of drainage bottle body 10, just it is relative about on U-shaped mounting 201 fixed subassembly 202, two fixed subassembly 202 is rather than two supporting legs 101 pivotal connection that close to mutually respectively, so, can pass through when using fixed subassembly 202 comes right the supporting legs 101 is fixed, avoids supporting legs 101 is artificial and rotates to cause the drainage bottle to take place to empty, and then influence going on of drainage operation.
Preferably, in an embodiment of the present invention, a mounting groove 2011 is formed on a front surface of the U-shaped fixing member 201, the mounting groove 2011 runs through to a rear surface along the front surface of the U-shaped fixing member 201, and the two fixing members 202 are installed in the mounting groove 2011 in a left-right opposite manner.
So, through a mounting groove 2011 has been seted up to the front surface of U-shaped mounting 201, just mounting groove 2011 is followed the front surface of U-shaped mounting 201 runs through to the rear surface, and two relative installation about fixed subassembly 202 in the mounting groove 2011, thereby can make two fixed subassembly 202 can be more be close to the bottom of drainage bottle body 10 avoids it highly to be higher than the height of supporting legs 101, thereby causes to place unstably, and on the other hand also can be convenient for fixed subassembly 202 installs.
Preferably, in an embodiment of the present invention, the fixing assembly 202 includes a first telescopic rod 2021, a second telescopic rod 2022, a first gear 2023 and a second gear 2024, the first gear 2023 and the second gear 2024 are disposed in the mounting groove 2011 in a front-back opposite manner, the first gear 2023 and the second gear 2024 are engaged with each other, one end of the first telescopic rod 2021 is fixedly connected to the first gear 2023, the other end of the first telescopic rod 2021 is pivotally connected to one end of the adjacent supporting foot 101, one end of the second telescopic rod 2022 is fixedly connected to the second gear 2024, and the other end of the second telescopic rod 2022 is pivotally connected to one end of the adjacent supporting foot 101.
Thus, by fixedly connecting one end of the first telescopic rod 2021 with the first gear 2023, pivotally connecting the other end of the first telescopic rod 2021 with one end of the adjacent supporting leg 101, fixedly connecting one end of the second telescopic rod 2022 with the second gear 2024, pivotally connecting the other end of the second telescopic rod 2022 with one end of the adjacent supporting leg 101, and simultaneously, engaging the first gear 2023 with the second gear 2024, a linkage structure can be formed, that is, only one of the supporting legs 101 needs to be rotated, and under the cooperation of the first gear 2023 and the second gear 2024, the other supporting leg 101 opposite to the front and back can be driven to perform mirror image motion, so that the rotation adjustment of the supporting legs is more convenient, and when the telescopic length of one of the first telescopic rod 2021 or the second telescopic rod 2022 is fixed, the supporting leg 101 is fixed, and since the first expansion link 2021 and the second expansion link 2022 are linked, the other supporting leg 101 linked with each other is also fixed, so that the fixing manner is simple and stable.
Preferably, in an embodiment of the present invention, the other end of the first telescopic rod 2021 is connected to a first clamping member 2025, the front end of the first clamping member 2025 is clamped to the side of the supporting foot 101, the tail end of the first clamping member 2025 is pivotally connected to the other end of the first telescopic rod 2021, the other end of the second telescopic rod 2022 is connected to a second clamping member 2026, the front end of the second clamping member 2026 is clamped to the side of the supporting foot 101, and the tail end of the second clamping member 2026 is pivotally connected to the other end of the second telescopic rod 2022.
It should be noted that, the first clamping piece 2025 and the second clamping piece 2026 are both formed into a U shape, so that they can be better connected to the supporting legs 101, and an elastic piece can be further disposed on the inner side surfaces of the first clamping piece 2025 and the second clamping piece 2026, so that the first clamping piece 2025 and the second clamping piece 2026 are more firmly and tightly connected to the supporting legs 101, so that the first clamping piece 2025 is disposed to detachably connect the first telescopic rod 2021 to the adjacent supporting legs 101, and the second clamping piece 2026 is disposed to detachably connect the second telescopic rod 2022 to the adjacent supporting legs 101, so that after the present invention is used, the fixing device 20 with the drainage bottle body 10 can be detached and mounted to another drainage bottle.
Preferably, in an embodiment of the present invention, a locking member 20211 for controlling the extension length of the first telescopic rod 2021 is disposed on the first telescopic rod 2021.
Advantageously, the locking member 20211 may be a fixing member such as a locking screw, etc. for facilitating fixing, and by providing the locking member 20211 for controlling the telescopic length of the first telescopic rod 2021, when the telescopic length of the first telescopic rod 2021 is fixed, the length of the second telescopic rod 2022 is also fixed, that is, the supporting foot 101 to which the first telescopic rod 2021 and the second telescopic rod 2022 are connected is also fixed.
Preferably, in an embodiment of the present invention, a first rotating shaft 20231 is fixedly disposed in the middle of the first gear 2023, two ends of the first rotating shaft 20231 respectively protrude from the upper surface and the lower surface of the first gear 2023, two ends of the first rotating shaft 20231 are respectively rotatably connected to the upper and lower groove walls of the mounting groove 2011, and one end of the first telescopic rod 2021 is connected to the first rotating shaft 20231;
a second rotating shaft 20241 is fixedly disposed in the middle of the second gear 2024, two ends of the second rotating shaft 20241 respectively protrude from the upper surface and the lower surface of the second gear 2024, two ends of the second rotating shaft 20241 are respectively rotatably connected to the upper and lower groove walls of the mounting groove 2011, and one end of the second telescopic rod 2022 is connected to the second rotating shaft 20241.
Based on the above, when the first telescopic rod 2021 rotates, the first gear 2023 can be driven to rotate, and the first gear 2023 is engaged with the second gear 2024, so that the second gear 2024 can be driven to rotate by the first gear 2023, and the second gear 2024 is connected to the second telescopic rod 2022, so as to drive the second telescopic rod 2022 to rotate, and further the supporting legs 101 connected to the second telescopic rod 2022 can be driven to rotate by the second telescopic rod 2022, so that the linkage manner is simple and reliable.
Preferably, in an embodiment of the present invention, a first limit key is disposed on a side wall of an upper end of the first rotating shaft 20231, a first mounting hole 20212 is disposed at one end of the first telescopic rod 2021, one end of the first telescopic rod 2021 is sleeved on the first rotating shaft 20231 through the first mounting hole 20212, a first key groove is disposed on a wall of the first mounting hole 20212, and the first limit key is disposed in the first key groove;
a second limit key is arranged on the side face of the upper end of the second rotating shaft 20241, a second mounting hole 20221 is arranged at one end of the second telescopic rod 2022, one end of the second telescopic rod 2022 is sleeved on the second rotating shaft 20241 through the second mounting hole 20221, a second key groove is arranged on the wall of the second mounting hole 20221, and the second limit key is arranged on the second key groove.
Thus, by providing the first limiting key on the upper end side wall of the first rotating shaft 20231, providing the first mounting hole 20212 at one end of the first telescopic rod 2021, and providing the first key slot on the hole wall of the first mounting hole 20212, when one end of the first telescopic rod 2021 is sleeved on the first rotating shaft 20231 through the first mounting hole 20212, the first limiting key is provided in the first key slot, so that the first telescopic rod 2021 is limited, and the first telescopic rod 2021 is prevented from rotating relative to the first rotating shaft 20231, by providing the second limiting key on the upper end side wall of the second rotating shaft 20241, providing the second mounting hole 20221 at one end of the second telescopic rod 2022, and providing the second key slot on the hole wall of the second mounting hole 20221, when one end of the second telescopic rod 2022 is sleeved on the second rotating shaft 20241 through the second mounting hole 20221, the second limiting key is disposed in the second key slot, so that the second telescopic rod 2022 is limited, and the second telescopic rod 2022 is prevented from rotating relative to the second rotating shaft 20241.
Preferably, in an embodiment of the present invention, the two inner sidewalls of the U-shaped fixing member 201 are both provided with a spring 2012, and the spring 2012 abuts against the side surface of the drainage bottle body 10.
Thus, when in use, the two ends of the U-shaped fixing member 201 are respectively clamped at the two side surfaces of the drainage bottle body 10, and the elastic sheet 2012 abuts against the side surfaces of the drainage bottle body 10, so that the U-shaped fixing member 201 can be stably clamped at the bottom of the drainage bottle body 10.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (8)

1. An improved negative pressure drainage bottle, comprising:
the drainage bottle comprises a drainage bottle body, wherein four corners of the bottom surface of the drainage bottle body are respectively provided with a supporting leg, and one end of each supporting leg is rotatably connected with the bottom of the drainage bottle body;
fixing device, fixing device includes a U-shaped mounting and two fixed subassemblies, the U-shaped mounting is located along left right direction card the middle part of drainage bottle body bottom surface, two relative locating about the fixed subassembly on the U-shaped mounting, two fixed subassembly is rather than two supporting legs pivotal connection that close on mutually for it is right the supporting legs is fixed.
2. The improved negative pressure drainage bottle of claim 1, wherein the U-shaped fixing member has a mounting groove formed on a front surface thereof, the mounting groove extends through the U-shaped fixing member along the front surface to a rear surface thereof, and the two fixing members are oppositely mounted in the mounting groove.
3. The improved negative pressure drainage bottle of claim 2, wherein the fixing component comprises a first telescopic rod, a second telescopic rod, a first gear and a second gear, the first gear and the second gear are arranged in the mounting groove in a front-back opposite manner, the first gear is meshed with the second gear, one end of the first telescopic rod is fixedly connected with the first gear, the other end of the first telescopic rod is pivotally connected with one end of the adjacent supporting leg, one end of the second telescopic rod is fixedly connected with the second gear, and the other end of the second telescopic rod is pivotally connected with one end of the adjacent supporting leg.
4. The improved negative pressure drainage bottle according to claim 3, wherein a first clamping piece is connected to the other end of the first telescopic rod, the front end of the first clamping piece is clamped to the side surface of the supporting leg, the tail end of the first clamping piece is pivotally connected to the other end of the first telescopic rod, a second clamping piece is connected to the other end of the second telescopic rod, the front end of the second clamping piece is clamped to the side surface of the supporting leg, and the tail end of the second clamping piece is pivotally connected to the other end of the second telescopic rod.
5. The improved negative pressure drainage bottle as claimed in claim 4, wherein the first telescopic rod is provided with a locking member for controlling the telescopic length of the first telescopic rod.
6. The improved negative pressure drainage bottle of claim 4, wherein a first rotating shaft is fixedly arranged in the middle of the first gear, two ends of the first rotating shaft respectively protrude out of the upper surface and the lower surface of the first gear, two ends of the first rotating shaft are respectively rotatably connected to the upper and lower groove walls of the mounting groove, and one end of the first telescopic rod is connected to the first rotating shaft;
the middle part of the second gear is fixedly provided with a second rotating shaft, two ends of the second rotating shaft respectively protrude out of the upper surface and the lower surface of the second gear, two ends of the second rotating shaft are respectively rotatably connected with the upper groove wall and the lower groove wall of the mounting groove, and one end of a second telescopic rod is connected with the second rotating shaft.
7. The improved negative pressure drainage bottle of claim 6, wherein a first limit key is arranged on the side wall of the upper end of the first rotating shaft, a first mounting hole is arranged at one end of the first telescopic rod, one end of the first telescopic rod is sleeved on the first rotating shaft through the first mounting hole, a first key groove is arranged on the wall of the first mounting hole, and the first limit key is arranged in the first key groove;
the side face of the upper end of the second rotating shaft is provided with a second limiting key, one end of the second telescopic rod is provided with a second mounting hole, one end of the second telescopic rod is sleeved on the second mounting hole in the second rotating shaft, a second key groove is formed in the hole wall of the second mounting hole, and the second limiting key is arranged on the second key groove.
8. The improved negative pressure drainage bottle of claim 2, wherein the two inner side walls of the U-shaped fixing member are provided with elastic pieces, and the elastic pieces are abutted against the side surfaces of the drainage bottle body.
CN201921340993.1U 2019-08-14 2019-08-14 Improved negative pressure drainage bottle Expired - Fee Related CN211705410U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921340993.1U CN211705410U (en) 2019-08-14 2019-08-14 Improved negative pressure drainage bottle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921340993.1U CN211705410U (en) 2019-08-14 2019-08-14 Improved negative pressure drainage bottle

Publications (1)

Publication Number Publication Date
CN211705410U true CN211705410U (en) 2020-10-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921340993.1U Expired - Fee Related CN211705410U (en) 2019-08-14 2019-08-14 Improved negative pressure drainage bottle

Country Status (1)

Country Link
CN (1) CN211705410U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201020

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