CN111991230B - Air filter of dispensing machine - Google Patents
Air filter of dispensing machine Download PDFInfo
- Publication number
- CN111991230B CN111991230B CN202010896363.3A CN202010896363A CN111991230B CN 111991230 B CN111991230 B CN 111991230B CN 202010896363 A CN202010896363 A CN 202010896363A CN 111991230 B CN111991230 B CN 111991230B
- Authority
- CN
- China
- Prior art keywords
- communication channel
- assembly cavity
- air passing
- passing piece
- 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.)
- Active
Links
- 239000003814 drug Substances 0.000 claims abstract description 75
- 238000004891 communication Methods 0.000 claims abstract description 60
- 239000012528 membrane Substances 0.000 claims abstract description 56
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 12
- 238000005086 pumping Methods 0.000 abstract description 10
- 230000009471 action Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2079—Filtering means
- A61J1/2082—Filtering means for gas filtration
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an air filter of a dispensing machine, which comprises a first air passing piece and a second air passing piece which are detachably connected and are formed with an assembly cavity, wherein the first air passing piece and the second air passing piece are respectively communicated with the outside through a first communication channel and a second communication channel which are arranged on respective bodies, a filter membrane is movably assembled in the assembly cavity, and a first pressure release channel and a second pressure release channel which are used for balancing the pressure of a medicine dissolving device are respectively constructed on the end walls of the two air passing pieces which belong to the assembly cavity. The invention solves the problem that the piston in the medicine dissolving device cannot be driven to move due to the large front-rear pressure difference of the filtering membrane, so that the pumping of the medicine liquid cannot be completed, and simultaneously, the aim of reducing the input cost is fulfilled. The invention is suitable for the technical field of medicine dispensing of medical staff.
Description
Technical Field
The invention belongs to the technical field of medicine dispensing of medical staff, and particularly relates to an air filter of a medicine dispensing machine.
Background
At present, in order to improve the cleaning degree in the process of dispensing, a primary air filter is arranged in a pneumatic dispensing machine, and a secondary air filter is arranged on an operating handle, so that the position of a filtering membrane of the secondary air filter is fixed and cannot be displaced or deformed, and on one hand, when the pressure difference between the front and the rear of the filtering membrane is large (generally, back pressure), the piston in the medicine dissolving device cannot be driven to move, and pumping of medicine liquid cannot be completed; on the other hand, since the secondary air filter is difficult to disassemble, the installation instruction requires an integral replacement after the filter membrane is stained, and thus, the cost of the throw-in is greatly increased.
Disclosure of Invention
The invention provides an air filter of a medicine dispensing machine, which is used for solving the problem that pumping of medicine liquid cannot be completed due to the fact that a piston in a medicine dissolving device cannot be driven to move due to the fact that the front-back pressure difference of a filtering membrane is large, and simultaneously achieving the purpose of reducing input cost.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the air filter of the medicine dispensing machine comprises a first air passing piece and a second air passing piece which are detachably connected and are formed with an assembly cavity, wherein the first air passing piece and the second air passing piece are respectively communicated with the outside through a first communication channel and a second communication channel which are arranged on respective bodies, a filter membrane is movably assembled in the assembly cavity, and a first pressure release channel and a second pressure release channel which are used for balancing the pressure of a medicine dissolving device are respectively constructed on the end walls of the two air passing pieces which belong to the assembly cavity; when the gas enters the assembly cavity from the first communication channel, the filtering membrane is attached to the second pressure relief channel and the second communication channel, and the gas filtered by the filtering membrane enters the medicine dissolving device through the second communication channel; when gas enters the assembly cavity from the first communication channel and the pressure in the medicine dissolving device is smaller than the pressure in the assembly cavity or is vacuum, the filtering membrane is deformed and attached to the second communication channel, and meanwhile the second pressure release channel communicates the medicine dissolving device with the assembly cavity; when the gas is pumped out of the assembly cavity by the first communication channel, the filtering membrane is attached to the first pressure release channel and the first communication channel, and the gas filtered by the filtering membrane is pumped out of the medicine dissolving device by the first communication channel; when the gas is pumped out of the assembly cavity by the first communication channel and the pressure in the medicine dissolver is larger than the pressure in the assembly cavity; the filtering membrane is deformed and attached to the first communication channel, and meanwhile, the first pressure release channel is used for communicating the medicine dissolving device with the assembly cavity.
Further, the first air passing member includes a first body having a first connection portion, the first connection portion is connected to the second air passing member, and a joint pipe communicating with the first communication channel is configured on the first body.
Further, the first body is a shell-like structure, and a reinforcing connecting piece is constructed between the joint pipe and the shell-like structure.
Further, the reinforcing connector comprises a sleeve body which is constructed in the shell structure and is sleeved with the joint pipe, and a plurality of reinforcing plates are constructed between the sleeve body and the joint pipe.
Further, the first communication channel comprises a plurality of concentric annular grooves formed on the end face of the first body, close to one end of the assembly cavity, the annular grooves are communicated with each other and the joint pipe through a plurality of grooves, a first annular bulge is formed on the first body and located on the outer side of the annular groove of the outermost ring, and the filtering membrane is matched with the first annular bulge and separates the annular groove from the assembly cavity.
Further, the second air passing piece comprises a second body with a second connecting part, the second connecting part is connected with the first air passing piece, and a plurality of air holes communicated with the assembly cavity through a second communication channel are formed in the second body.
Further, the second communication channel comprises a plurality of plate-shaped bodies uniformly configured on the end face of the second body close to one end of the assembly cavity, a second annular bulge which surrounds the plate-shaped bodies and the air holes therein is configured on the second body, and the filtering membrane is matched with the second annular bulge and separates the plate-shaped bodies from the assembly cavity.
Further, an assembly lug is configured on the second body, and the first air passing piece is connected with the second connecting part to be abutted against the assembly lug.
Further, a mounting groove is formed in the end portion of the second body, which is far away from the assembly cavity.
Further, the first air passing piece and the second air passing piece are made of metal or plastic materials.
Compared with the prior art, the invention adopts the structure, and the technical progress is that: the filtering membrane is movably assembled in an assembling cavity formed by the first air passing piece and the second air passing piece; in the pumping process of the medicine liquid, the filtering membrane has four actions: firstly, when the liquid medicine in the medicine dissolver is injected into a target medicine bottle or medicine bag, and meanwhile, the pressure difference between the piston of the medicine dissolver and the pressure in the assembling cavity is smaller, the filtering membrane is attached to the second pressure relief channel and the second communication channel, and the gas filtered by the filtering membrane enters the medicine dissolver through the second communication channel and pushes the piston to push the liquid medicine in the medicine dissolver out; secondly, when the gas is pumped out of the assembly cavity through the first communication channel, and meanwhile, the pressure difference between the piston of the medicine dissolver and the pressure in the assembly cavity is smaller, the filtering membrane is attached to the first pressure release channel and the first communication channel, and the gas filtered by the filtering membrane is pumped out of the medicine dissolver through the first communication channel, so that the piston moves integrally along with the tensile force of the gas, and the medicine dissolver pumps medicine liquid; thirdly, when gas enters the assembly cavity from the first communication channel and the pressure in the medicine dissolver is smaller than the pressure in the assembly cavity or is vacuum, the filtering membrane is deformed and attached to the second communication channel, and meanwhile, the second pressure release channel communicates the medicine dissolver with the assembly cavity, so that the pressure of the medicine dissolver and the pressure of the assembly cavity are balanced or are close to be balanced, and then the first action is completed; fourth, when the gas is pumped out of the assembly cavity by the first communication channel and the pumping force is unbalanced with the pressure in the medicine dissolver, the filtering membrane is deformed and attached to the first communication channel, and meanwhile, the medicine dissolver is communicated with the assembly cavity by the first pressure release channel, so that the pressure of the medicine dissolver and the assembly cavity is balanced or nearly balanced, and then the second action is completed; according to the invention, the filter membrane is convenient to replace periodically due to the detachable connection mode adopted by the first air passing piece and the second air passing piece, and the filter membrane can be replaced according to the using times, so that the problems of resource waste and large cost investment caused by the existing integral replacement are avoided; in summary, the invention solves the problem that the pumping of the liquid medicine can not be completed due to the fact that the piston in the medicine dissolving device can not be driven to move because of the large front-rear pressure difference of the filtering membrane, and simultaneously achieves the purpose of reducing the input cost.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a split structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a first air passing member according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first air passing member according to another embodiment of the present invention;
FIG. 5 is a bottom view of a first air passage member according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a second air passing member according to an embodiment of the present invention;
FIG. 7 is a schematic view of a second embodiment of the present invention at another angle;
FIG. 8 is a top view of a second embodiment of the present invention;
FIG. 9 is a cross-sectional view of an axial structure of a removal filter membrane in accordance with an embodiment of the invention;
FIG. 10 is an axial structural cross-sectional view of an embodiment of the present invention;
FIG. 11 is a cross-sectional view of the axial structure of an embodiment of the present invention when gas normally enters the cartridge through the filter membrane;
FIG. 12 is a cross-sectional view of an embodiment of the present invention showing the axial configuration of the fitting chamber with a large pressure differential with the drug dissolver as gas enters the fitting chamber;
FIG. 13 is an enlarged view of the structure of the portion A in FIG. 12;
FIG. 14 is a cross-sectional view of the axial structure of an embodiment of the present invention when gas is normally drawn through the filter membrane away from the drug dissolver;
FIG. 15 is a cross-sectional view of an embodiment of the present invention showing the axial configuration of the assembly chamber with a large pressure differential with the drug dissolver as gas is drawn out of the assembly chamber;
fig. 16 is an enlarged view of the structure of the B portion in fig. 15.
Marking parts: 100-first gas passing piece, 101-first body, 102-first connecting part, 103-joint pipe, 104-gas passage, 105-first annular protrusion, 106-spacer ring, 107-annular groove, 108-groove, 109-reinforcing plate, 200-second gas passing piece, 201-second body, 202-second connecting part, 203-fitting lug, 204-second annular protrusion, 205-gas hole, 206-plate-like body, 207-fitting groove, 300-fitting cavity, 400-filtering membrane.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented by way of illustration and explanation only and are not intended to limit the present invention.
The invention discloses an air filter of a dispensing machine, which is shown in figures 1-2 and 9-10, and comprises a first air passing piece 100 and a second air passing piece 200, wherein the first air passing piece 100 and the second air passing piece 200 are detachably connected with each other to form an assembly cavity 300, the first air passing piece 100 and the second air passing piece 200 are respectively communicated with the outside through a first communication channel and a second communication channel which are arranged on respective bodies, a filtering membrane 400 is movably assembled in the assembly cavity 300, and a first pressure relief channel and a second pressure relief channel which are used for balancing the pressure of a medicine dissolving device are respectively constructed on the end walls of the first air passing piece 100 and the second air passing piece 200 which form the assembly cavity 300. Wherein, the first air passing member 100 and the second air passing member 200 are made of metal or plastic materials. The working principle and the advantages of the invention are as follows: since the filtering membrane 400 of the present invention is movably installed in the installation cavity 300 formed by the first gas passing member 100 and the second gas passing member 200; during the pumping of the medical fluid, the filtering membrane 400 has four actions: first, as shown in fig. 11, when the liquid medicine in the medicine container is injected into the target medicine bottle or medicine bag, and at the same time, the pressure difference between the piston of the medicine container and the pressure in the assembling cavity 300 is small, the filtering membrane 400 is attached to the second pressure release channel and the second communication channel, the gas filtered by the filtering membrane 400 enters the medicine container through the second communication channel, and pushes the piston to push the liquid medicine in the medicine container out; second, as shown in fig. 14, when the gas is pumped out of the assembly cavity 300 through the first communication channel, and at the same time, the pressure difference between the piston of the medicine dissolver and the pressure in the assembly cavity 300 is small, the filtering membrane 400 is attached to the first pressure release channel and the first communication channel, and the gas filtered by the filtering membrane 400 is pumped out of the medicine dissolver through the first communication channel, so that the piston moves integrally with the pulling force of the gas, and the medicine suction of the medicine dissolver on the medicine liquid is realized; 12-13, when the gas enters the assembly chamber 300 from the first communication channel and the pressure in the medicine container is smaller than the pressure in the assembly chamber 300 or is vacuum, the filtering membrane 400 deforms and attaches to the second communication channel, and the second pressure release channel communicates the medicine container with the assembly chamber 300, so that the pressure of the medicine container and the assembly chamber 300 is balanced or nearly balanced, and then the first action is completed; 15-16, when the gas is pumped out of the assembly chamber 300 through the first communication channel and the pumping force is unbalanced with the pressure in the medicine container, the filtering membrane 400 deforms and adheres to the first communication channel, and meanwhile, the medicine container is communicated with the assembly chamber 300 through the first pressure release channel, so that the pressure of the medicine container and the assembly chamber 300 is balanced or nearly balanced, and then the second action is completed; in the invention, the filter membrane 400 is convenient to replace periodically due to the detachable connection mode adopted by the first air passing piece 100 and the second air passing piece 200, and the filter membrane 400 can be replaced according to the using times, so that the problems of resource waste and large cost input caused by the existing integral replacement are avoided; in summary, the invention solves the problem that the pumping of the liquid medicine cannot be completed due to the fact that the piston in the medicine dissolver cannot be driven to move because of the large front-rear pressure difference of the filtering membrane 400, and simultaneously achieves the purpose of reducing the input cost.
As a preferred embodiment of the present invention, as shown in fig. 3, the first gas passing member 100 includes a first body 101 having a cylindrical first coupling portion 102, an outer bolt is formed on the circumferential surface of the first coupling portion 102, and the first coupling portion 102 is screw-coupled with the second gas passing member 200, thus accomplishing the disassembly of the first gas passing member 100 from the second gas passing member 200 and the replacement of the filtering membrane 400. In this embodiment, a joint pipe 103 communicating with the first communication passage is formed in the first body 101, a hollow portion of the joint pipe 103 is an air passage 104, and the joint pipe 103 is connected to an air pipe. In order to reduce the weight of the operating handle held by the medical staff and save the input of materials, the first body 101 is of a shell-shaped structure, and a reinforcing connecting piece is configured between the joint pipe 103 and the shell-shaped structure, the reinforcing connecting piece comprises a sleeve body configured in the shell structure and sleeved with the joint pipe 103, and a plurality of reinforcing plates 109 are configured between the sleeve body and the joint pipe 103 for improving the connection strength of the joint pipe 103.
As a preferred embodiment of the present invention, as shown in fig. 4 to 5, the first communication passage includes a plurality of concentric ring grooves 107 formed on an end surface of the first body 101 near the fitting chamber 300, and the ring grooves 107 communicate with each other and with the joint pipe 103 via a plurality of grooves 108, a spacer ring 106 is formed between the adjacent ring grooves 107, and each groove 108 communicates the ring grooves 107 separated by the spacer ring 106 and is formed to extend radially outwardly from a center of the first body 101. A first annular protrusion 105 is formed on the first body 101 outside the ring groove 107 located at the outermost ring, and the rim of the filtering membrane 400 is engaged with the first annular protrusion 105 and separates the ring groove 107 from the assembly chamber 300. When gas is pumped out of the assembly chamber 300 through the first communication channel and the pumping force is unbalanced with the pressure in the medicine dissolver, the filtering membrane 400 deforms, the situation shown in fig. 15-16 can occur, and the situation that the piston cannot effectively move is avoided. The first air passing member 100 of this embodiment is of an integrally formed structure, so that mass production thereof and strength of the finished product are effectively ensured.
As a preferred embodiment of the present invention, as shown in fig. 6, the second air passing member 200 includes a second body 201, the second body 201 has a second connection portion 202, the second body 201 has a sleeve-shaped structure with a circular radial cross section, one end of the sleeve-shaped structure, which is far away from the first body 101, is closed, and a plurality of air holes 205 are uniformly opened at the end, the air holes 205 are communicated with the assembly cavity 300 through a second communication channel, the second connection portion 202 is an internal thread formed on an inner wall of the sleeve-shaped structure, and the second connection portion 202 is in threaded connection with the first air passing member 100. The second communication passage of the present embodiment includes a plurality of plate-like bodies 206, the plate-like bodies 206 being uniformly configured on an end face of the second body 201 near the fitting chamber 300, the second body 201 being configured with a second annular protrusion 204 enclosing both the plate-like bodies 206 and the gas holes 205 therein, and the rim of the filtering membrane 400 being engaged with the second annular protrusion 204 and separating the plate-like bodies 206 from the fitting chamber 300. In this embodiment, the second body 201 is configured with the fitting tab 203, and the first air-passing member 100 is connected to the second connecting portion 202 and abuts against the fitting tab 203. When gas enters the assembly chamber 300 from the first communication channel and the pressure in the medicine dissolver is smaller than the pressure in the assembly chamber 300 or is vacuum, the situation as shown in fig. 12-13 can occur, the filtering membrane 400 deforms, so that the pressure of the medicine dissolver and the assembly chamber 300 is balanced or close to balanced, and the situation that the piston cannot effectively move is avoided. The second air passing member 200 of the present embodiment is an integrally formed structure, so as to facilitate mass production thereof and ensure the connection strength with the first air passing member 100. The present embodiment is constructed with a mounting groove 207 at an end of the second body 201 remote from the fitting chamber 300 for mounting a connection joint of a cartridge.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but the present invention is described in detail with reference to the foregoing embodiments, and it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. An air filter of a dispensing machine, which is characterized in that: the device comprises a first air passing piece and a second air passing piece which are detachably connected together and form an assembly cavity, wherein the first air passing piece and the second air passing piece are respectively communicated with the outside through a first communication channel and a second communication channel which are arranged on respective bodies, a filter membrane is movably assembled in the assembly cavity, and a first pressure release channel and a second pressure release channel which are used for balancing the pressure of a medicine dissolving device are respectively constructed on the end walls of the two air passing pieces which respectively belong to the first air passing piece and the second air passing piece and form the assembly cavity; the first gas passing piece comprises a first body, the first body is provided with a cylindrical first connecting part, an outer bolt is formed on the peripheral surface of the first connecting part, the first connecting part is in threaded connection with a second gas passing piece, a joint pipe communicated with a first communication channel is constructed on the first body, the second gas passing piece comprises a second body, the second body is provided with a second connecting part, the second body is of a sleeve-shaped structure with a circular radial section, one end of the sleeve-shaped structure far away from the first body is closed, a plurality of air holes are uniformly formed in the end of the sleeve-shaped structure, the air holes are communicated with an assembly cavity through the second communication channel, the second connecting part is an inner thread constructed on the inner wall of the sleeve-shaped structure, and the second connecting part is in threaded connection with the first gas passing piece; the first communication channel comprises a plurality of concentric annular grooves formed on the end face of the first body close to the assembly cavity, the annular grooves are communicated with each other and are communicated with the joint pipe through a plurality of grooves, a first annular bulge is formed on the outer side of the annular groove on the first body and positioned on the outermost ring, the filtering membrane is matched with the first annular bulge and separates the annular groove from the assembly cavity, the second communication channel comprises a plurality of plate-shaped bodies uniformly formed on the end face of the second body close to the assembly cavity, a second annular bulge which surrounds the plate-shaped bodies and the air holes therein is formed on the second body, and the filtering membrane is matched with the second annular bulge and separates the plate-shaped bodies from the assembly cavity; when the gas enters the assembly cavity from the first communication channel, the filtering membrane is attached to the second pressure relief channel and the second communication channel, and the gas filtered by the filtering membrane enters the medicine dissolving device through the second communication channel; when gas enters the assembly cavity from the first communication channel and the pressure in the medicine dissolving device is smaller than the pressure in the assembly cavity or is vacuum, the filtering membrane is deformed and attached to the second communication channel, and meanwhile the second pressure release channel communicates the medicine dissolving device with the assembly cavity; when the gas is pumped out of the assembly cavity by the first communication channel, the filtering membrane is attached to the first pressure release channel and the first communication channel, and the gas filtered by the filtering membrane is pumped out of the medicine dissolving device by the first communication channel; when gas is pumped out of the assembly cavity by the first communication channel and the pressure in the medicine dissolving device is larger than the pressure in the assembly cavity, the filtering membrane deforms and is attached to the first communication channel, and meanwhile the medicine dissolving device is communicated with the assembly cavity by the first pressure release channel.
2. A dispenser air filter according to claim 1, wherein: the first body is of a shell-shaped structure, and a reinforcing connecting piece is constructed between the joint pipe and the shell-shaped structure.
3. A dispenser air filter according to claim 2, wherein: the reinforcing connecting piece comprises a sleeve body which is constructed in the shell structure and is used for sleeving the joint pipe therein, and a plurality of reinforcing plates are constructed between the sleeve body and the joint pipe.
4. A dispenser air filter according to claim 1, wherein: and the second body is provided with an assembling lug, and the first air passing piece is connected with the assembling lug through the second connecting part to be abutted against the assembling lug.
5. A dispenser air filter according to claim 1, wherein: and a mounting groove is formed at the end part of one end of the second body far away from the assembly cavity.
6. A dispenser air filter according to claim 1, wherein: the first air passing piece and the second air passing piece are made of metal or plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896363.3A CN111991230B (en) | 2020-08-31 | 2020-08-31 | Air filter of dispensing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896363.3A CN111991230B (en) | 2020-08-31 | 2020-08-31 | Air filter of dispensing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111991230A CN111991230A (en) | 2020-11-27 |
| CN111991230B true CN111991230B (en) | 2024-04-16 |
Family
ID=73466139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010896363.3A Active CN111991230B (en) | 2020-08-31 | 2020-08-31 | Air filter of dispensing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111991230B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169917A1 (en) * | 2015-04-20 | 2016-10-27 | Safe | Single-use membrane filter and medical kit comprising such a filter |
| CN106821751A (en) * | 2017-01-17 | 2017-06-13 | 哈尔滨鼓润生物技术有限公司 | A kind of sterile dispensing system and sterile dispensing method |
| CN207356784U (en) * | 2017-07-12 | 2018-05-15 | 张宇 | A kind of air filter that can efficiently utilize |
| CN108652968A (en) * | 2018-07-20 | 2018-10-16 | 山东艾博康生物科技有限公司 | A kind of medicine dissolving device and handle assembly of intelligence location |
| CN110237367A (en) * | 2019-03-27 | 2019-09-17 | 上海振浦医疗设备有限公司 | A kind of filter and its working method |
| CN210356443U (en) * | 2019-07-09 | 2020-04-21 | 河北晟泰生物科技有限公司 | Gas filter |
| CN111991231A (en) * | 2020-08-31 | 2020-11-27 | 石家庄瑞祥电子科技有限公司 | Operating handle for installing medicine dissolving device |
| CN112043593A (en) * | 2020-08-31 | 2020-12-08 | 石家庄瑞祥电子科技有限公司 | Medical pneumatic medicine dispensing system |
| CN213311735U (en) * | 2020-08-31 | 2021-06-01 | 石家庄瑞祥电子科技有限公司 | Air filter for balancing pressure of dispensing machine |
-
2020
- 2020-08-31 CN CN202010896363.3A patent/CN111991230B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169917A1 (en) * | 2015-04-20 | 2016-10-27 | Safe | Single-use membrane filter and medical kit comprising such a filter |
| CN106821751A (en) * | 2017-01-17 | 2017-06-13 | 哈尔滨鼓润生物技术有限公司 | A kind of sterile dispensing system and sterile dispensing method |
| CN207356784U (en) * | 2017-07-12 | 2018-05-15 | 张宇 | A kind of air filter that can efficiently utilize |
| CN108652968A (en) * | 2018-07-20 | 2018-10-16 | 山东艾博康生物科技有限公司 | A kind of medicine dissolving device and handle assembly of intelligence location |
| CN110237367A (en) * | 2019-03-27 | 2019-09-17 | 上海振浦医疗设备有限公司 | A kind of filter and its working method |
| CN210356443U (en) * | 2019-07-09 | 2020-04-21 | 河北晟泰生物科技有限公司 | Gas filter |
| CN111991231A (en) * | 2020-08-31 | 2020-11-27 | 石家庄瑞祥电子科技有限公司 | Operating handle for installing medicine dissolving device |
| CN112043593A (en) * | 2020-08-31 | 2020-12-08 | 石家庄瑞祥电子科技有限公司 | Medical pneumatic medicine dispensing system |
| CN213311735U (en) * | 2020-08-31 | 2021-06-01 | 石家庄瑞祥电子科技有限公司 | Air filter for balancing pressure of dispensing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111991230A (en) | 2020-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112043593A (en) | Medical pneumatic medicine dispensing system | |
| CN111991230B (en) | Air filter of dispensing machine | |
| CN213311735U (en) | Air filter for balancing pressure of dispensing machine | |
| CN213431703U (en) | Special operating handle of medicine dispensing machine | |
| CN111991231B (en) | Operating handle for installing medicine dissolving device | |
| RU2012126493A (en) | ROTOR CONTAINING INTERNAL HYDRAULIC TENSIONING DEVICE | |
| CN212881474U (en) | Filter cartridge removal apparatus for isolator system | |
| EP0361329B1 (en) | Self-priming jet pump with built-in ejector | |
| CN214388230U (en) | Portable pneumatic medicine dispensing system | |
| CN214210477U (en) | Multifunctional biochemical reaction tank convenient for feeding | |
| CN215045666U (en) | Oil storage device of base oil | |
| CN211082213U (en) | Large-flux double-diaphragm manual pump | |
| CN212240849U (en) | Dismantle supplementary ring flange | |
| CN211707144U (en) | Sprayer with a spray tube | |
| CN210068477U (en) | Screw compressor transmission system center positioning mechanism | |
| CN208878014U (en) | Filtering appts. for running water | |
| CN215311053U (en) | External filter cotton card lid structure of canister | |
| CN212039880U (en) | Ultrafiltration core assembly with easily-replaced filter element | |
| CN210361865U (en) | Quick demoulding inner container subassembly that cylindric target slip casting was used | |
| CN209922871U (en) | Drip-proof vacuum material sucking and filling valve | |
| CN110696705A (en) | Universal material port connecting structure and disassembling and assembling method | |
| CN102580542B (en) | Filtering assembly | |
| CN210290277U (en) | Water pump body connection structure | |
| CN218818156U (en) | Reation kettle prevents from gathering mechanical seal structure | |
| CN212664843U (en) | Connecting structure of runner sand core mold and oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Request for anonymity Inventor before: Request for anonymity |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220406 Address after: 050000 1-601, Tianyun building, 51 Youyi South Street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant after: Shijiazhuang Bopu Information Technology Co.,Ltd. Address before: 050000 1402, block B, Dongsheng Ziyu Plaza, 100 meters southwest of the intersection of Yongsheng Road and Yuanxi street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant before: Shijiazhuang Ruixiang Electronic Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |