CN110701339B - Novel plane spring pinch valve device - Google Patents
Novel plane spring pinch valve device Download PDFInfo
- Publication number
- CN110701339B CN110701339B CN201911143961.7A CN201911143961A CN110701339B CN 110701339 B CN110701339 B CN 110701339B CN 201911143961 A CN201911143961 A CN 201911143961A CN 110701339 B CN110701339 B CN 110701339B
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- pinch valve
- channel
- driving
- shaped groove
- opening
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- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a novel plane spring pinch valve device which comprises an eccentric column and a chuck, wherein a pipeline channel and an opening and closing channel which are mutually intersected are arranged on the chuck, one end of the eccentric column is a working end, the other end of the eccentric column is a driving end, the working end is positioned in the opening and closing channel, the driving end drives the working end to rotate in the opening and closing channel in the forward direction or the reverse direction, and the working end is far away from or propped against the inner wall of the pipeline channel when rotating in the forward direction. The device clamps the pipeline by utilizing the elasticity of the plane spring, so that the same device can clamp pipelines with different diameters in different use environments or different use time periods. The opening and closing positions of the pinch valve are provided with opening limit and closing limit limits, so that the rotating position is prevented from being in an unexpected use range. The control circuit converts a large starting current into a smaller maintaining current according to the detected opening signal, so that the pinch valve is opened by using the larger current and the open state of the pinch valve is maintained by using the smaller current.
Description
Technical Field
The invention relates to the technical field of medical appliances. In particular to a novel plane spring pinch valve device.
Background
In clinic, when extracorporeal circulation is established through hemodialysis or liquid is infused into a vein of a human body through other external equipment and pipelines, in order to ensure treatment safety, for example, bubbles appear in the liquid transmission process, the equipment can detect the bubbles and can respond to the bubbles to enable the pinch valve to cut off the liquid transmission.
In the clinical use process, the conventional technology of the pinch valve can only clamp a medical hose with a certain fixed diameter in clinical application, and due to the diversity of the existing medical equipment and the gradual diversification of treatment means, one equipment is required to clamp clinical pipelines with different diameters by using the same pinch valve in use.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a novel plane spring pinch valve device for pinching pipelines with different diameters.
In order to solve the technical problems, the invention provides the following technical scheme:
The utility model provides a novel plane spring pinch valve device, includes eccentric column and chuck, be provided with intercrossing's pipeline passageway and open and close the passageway on the chuck, the one end of eccentric column is the work end, the other end is the drive end, the work end is located open and close in the passageway, the drive end drives the work end is in open and close in the passageway forward or reverse rotation, keep away from or support when the work end forward rotates the inner wall of pipeline passageway.
According to the novel plane spring pinch valve device, the clamping head is a cylindrical clamping head, and a U-shaped groove is formed in the wall of the first end of the cylindrical clamping head; the U-shaped groove is formed in the direction parallel to the axis of the cylindrical chuck and extends from the end of the first end cylinder wall to the end of the second end cylinder wall; the axial cavity of the cylindrical chuck is the opening and closing channel.
The novel plane spring pinch valve device comprises an upper U-shaped groove and a lower U-shaped groove, wherein a channel from the upper U-shaped groove to the lower U-shaped groove is the pipeline channel, a boss extends from the inner wall of the first end cylinder wall towards the direction of the pipeline channel, and the boss extends from the inner wall of the upper U-shaped groove and/or the inner wall of the lower U-shaped groove towards the direction of the pipeline channel to form a propping part for blocking the pipeline channel; the working end is far away from or abuts against the abutting portion when rotating positively.
The novel plane spring pinch valve device is characterized in that the abutting part is positioned on the pipeline channel between the upper U-shaped groove and the lower U-shaped groove.
The novel plane spring pinch valve device is characterized in that the abutting part is one and is adjacent to the upper U-shaped groove or the lower U-shaped groove.
According to the novel plane spring pinch valve device, the working end is semi-cylindrical, the diameter of the cylinder where the working end is located is smaller than that of the cylinder where the driving end is located, and the axis of the cylinder where the working end is located is parallel to the axis of the cylinder where the driving end is located.
According to the novel plane spring pinch valve device, the end head of the second end cylinder wall is fixedly arranged on the pinch seat, the end face, far away from the second end cylinder wall, of the pinch seat is provided with the fixed support, the fixed support is provided with the photoelectric switch, one end of the swinging rod is provided with the light shielding sheet, and the other end of the swinging rod sequentially penetrates through the swinging hole in the fixed support and the swinging hole in the pinch seat to be fixedly connected with the driving end; one end of the driving end far away from the working end sequentially penetrates through the shaft hole on the clamp seat and the shaft hole on the fixed support to be in driving connection with a driving shaft of the rotary driving device.
Above-mentioned novel plane spring pinch valve device, rotary drive device's drive shaft passes shaft hole and limit stop fixed connection on the spacing post mount pad, install Guan Xianwei post and open spacing post on the spacing post mount pad, limit stop is located Guan Xianwei post with open between the spacing post, and Guan Xianwei post with open adjacent on one side of limit stop respectively fixed mounting has buffer unit.
Above-mentioned novel plane spring pinch valve device, limit stop Guan Xianwei post with open spacing post all is located the cavity of backshell, the backshell with spacing post mount pad fixed mounting is in the same place, and install plane spiral spring in the cavity of backshell, plane spiral spring's one end with the inner wall fixed connection of backshell, plane spiral spring's the other end with rotary drive device's drive shaft fixed connection.
The novel plane spring pinch valve device is characterized in that the driving end is in driving connection with the rotary driving device, and the rear shell is further provided with a control circuit board.
The technical scheme of the invention has the following beneficial technical effects:
The plane spring pinch valve device has the advantages of low energy consumption, small heat generation, safety and reliability, and clamps pipelines with different diameters.
(1) The device uses the elastic force of the eccentric column, the clamping head and the plane scroll spring to mutually match to clamp the pipeline, so that the same device can clamp pipelines with different diameters in different use environments or different use periods. At present, the pinch valve with the clamping function is realized by adopting an electric function, and only pipelines with the same pipe diameter can be clamped due to the fixed rotating position of the pinch valve. The integral axial direction position of the pinch valve is fixed, and the pinch valve has good stability.
(2) The opening and closing positions of the pinch valve are provided with an opening limit column and a Guan Xianwei column, so that the rotation position is prevented from being in an unexpected use range. The buffer component can be a rubber sheet, so that the operation noise can be reduced when the pinch valve is opened and closed.
(3) The control circuit board can convert a large starting current into a smaller maintaining current according to the detected pipeline opening signal, thereby realizing that the pinch valve is opened by using a larger current and the open state of the pinch valve is maintained by using a smaller current. In clinical application, the pinch valve is electrified to be in an open state, and the pinch valve can generate heat to cause potential safety hazard by maintaining large current for a long time, so that the pinch valve can generate less heat by maintaining the open state of the pinch valve with small current, the heating value is reduced, and the use safety is improved.
(4) When the pinch valve is closed by mistake due to unexpected use, human, vibration and the like, the photoelectric switch receives a relevant signal due to the fact that the shading sheet leaves, and the control circuit increases a reverse current to enable the pinch valve to be opened again. The safety of the clinical application of the pinch valve is improved. The pinch valve control circuit can realize audible and visual alarm.
Drawings
FIG. 1 is a schematic perspective view of a planar spring pinch valve apparatus of the present invention;
FIG. 2 is a schematic right-hand view of the planar spring pinch valve apparatus of the present invention;
FIG. 3 is a schematic perspective view of a hidden clip of the planar spring pinch valve apparatus of the present invention;
FIG. 4 is a schematic perspective view of a hidden rear housing of the planar spring pinch valve apparatus of the present invention;
FIG. 5 is a schematic structural view of the control circuit of the hidden rear housing of the planar spring pinch valve apparatus of the present invention;
FIG. 6-1 is a schematic illustration of an open state of the planar spring pinch valve apparatus of the present invention; FIG. 6-2 is a schematic illustration of a closed state of the planar spring pinch valve apparatus of the present invention;
FIG. 7 is a schematic perspective view of a collet and collet holder of the planar spring pinch valve apparatus of the present invention;
FIG. 8 is a schematic perspective view of another orientation of the collet and collet holder of the planar spring pinch valve device of the present invention;
FIG. 9 is a side view of the collet and collet holder of the planar spring pinch valve device of the present invention.
The reference numerals in the drawings are as follows: 1-clamping heads; 2-fixing a bracket; 3-eccentric columns; 4-photoelectric switch; 5-shading sheet; 6-a rotary drive; 7-Guan Xianwei columns; 8-limit stops; 9-opening a limit column; 10-plane spiral spring; 11-a rear shell; 12-a control circuit board; 13-piping channels; 14-opening and closing the channel; 15-working end; 16-driving end; 17-boss; 18-abutting part; 19-a clamp seat; 20-swinging rod; 21-a limit column mounting seat; 22-U-shaped groove; 23-cushioning component.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3 and fig. 9, a novel planar spring pinch valve device comprises an eccentric column 3 and a chuck 1, wherein a pipeline channel 13 (shown in fig. 9) and an opening and closing channel 14 (shown in fig. 2) which are mutually intersected are arranged on the chuck 1, one end of the eccentric column 3 is a working end 15, the other end is a driving end 16 (shown in fig. 3), the working end 15 is positioned in the opening and closing channel 14, the driving end 16 drives the working end 15 to positively or reversely rotate in the opening and closing channel 14, and the working end 15 is far away from or propped against the inner wall of the pipeline channel 13 when positively rotating.
As shown in fig. 7 to 9, the chuck 1 is a cylindrical chuck, and a U-shaped groove 22 is formed on a wall of a first end of the cylindrical chuck; the U-shaped groove 22 is formed in a direction parallel to the axial direction of the cylindrical chuck and extends from the end of the first end cylinder wall to the end of the second end cylinder wall; the axial cavity of the cylindrical chuck is the opening and closing channel 14. The clinical line to be clamped is placed in the line channel 13 of the cartridge 1, and the opening of the u-shaped groove 22 can be as large as possible, so that a line with a larger diameter can be plugged.
As shown in fig. 7 to 9, the U-shaped groove 22 includes an upper U-shaped groove and a lower U-shaped groove, the channel from the upper U-shaped groove to the lower U-shaped groove is the pipeline channel 13, a boss 17 extends from the inner wall of the first end cylinder wall toward the pipeline channel 13, and an abutment 18 for blocking the pipeline channel 13 extends from the inner wall of the upper U-shaped groove and/or the lower U-shaped groove toward the pipeline channel 13; the working end 15 is rotated in the forward direction away from or against the abutment 18. The abutment 18 is located on the pipe channel 13 between the upper and lower U-shaped grooves. In this embodiment, the abutment portion 18 is one and is adjacent to the upper U-shaped groove (as shown in fig. 1).
In this embodiment, the working end 15 is semi-cylindrical, the diameter of the cylinder where the driving end 16 is located is smaller than that of the cylinder where the working end 15 is located, and the axis of the cylinder where the driving end 16 is located is parallel to the axis of the cylinder where the working end 15 is located. Thus, when the working end 15 and the driving end 16 synchronously rotate, the working end 15 can be blocked or separated from the pipeline channel 13 in the rotating process, so that the closing or opening of a clinical pipeline is realized.
In this embodiment, the working end 15 of the eccentric column 3 is rotated against the abutment 18 on the boss 17, thereby closing the pipe passage 13.
As shown in fig. 3 and fig. 4, the end of the second end cylinder wall is fixedly mounted on a chuck base 19, a fixed bracket 2 is mounted on the end surface of the chuck base 19 far away from the second end cylinder wall, a photoelectric switch 4 is mounted on the fixed bracket 2, a light shielding sheet 5 is mounted on one end of a swinging rod 20, and the other end of the swinging rod 20 sequentially penetrates through a swinging hole on the fixed bracket 2 and a swinging hole on the chuck base 19 to be fixedly connected with the driving end 16; one end of the driving end 16 far away from the working end 15 sequentially penetrates through the shaft hole on the chuck base 19 and the shaft hole on the fixed support 2 to be in driving connection with a driving shaft of the rotary driving device 6. The rotary driving device 6 drives the driving end 16 of the eccentric column 3, so that the driving end 16 of the eccentric column 3 drives the light shielding sheet 5 to be close to or far away from the photoelectric switch 4, and further opening and closing of the pinch valve can be detected.
The drive shaft of the rotation driving device 6 passes through the shaft hole on the limit post mounting seat 21 and is fixedly connected with the limit stop 8, the limit post mounting seat 21 is provided with a Guan Xianwei post 7 and an open limit post 9, the limit stop 8 is positioned between the Guan Xianwei post 7 and the open limit post 9, and the Guan Xianwei post 7 and the open limit post 9 are respectively fixedly provided with a buffer part 23 on one side adjacent to the limit stop 8, and the buffer part 23 in the embodiment can be a rubber sheet.
The limit stop 8, the Guan Xianwei column 7 and the opening limit column 9 are all located in the cavity of the rear shell 11, the rear shell 11 and the limit column mounting seat 21 are fixedly mounted together, a plane scroll spring 10 is mounted in the cavity of the rear shell 11, one end of the plane scroll spring 10 is fixedly connected with the inner wall of the rear shell 11, and the other end of the plane scroll spring 10 is fixedly connected with the driving shaft of the rotation driving device 6. Guan Xianwei the post 7 and the open limit post 9 can limit the movable range of the limit stop 8, and the limit stop 8 is fixedly connected with the driving shaft of the rotation driving device 6, so that the rotation position can be prevented from being used in an unexpected range. When the pinch valve needs to be closed, the rotary driving device 6 is powered off, the flat spiral spring 10 drives the limit stop 8 to rotate towards the Guan Xianwei column 7 under the action of elastic force, and the eccentric column 3 is driven to rotate by the driving shaft of the rotary driving device 6, so that the pipeline channel 13 can be closed through the working end 15.
The drive end 16 is in driving connection with the drive shaft of the rotary drive 6, and a control circuit board 12 is also mounted on the rear housing 11. The control circuit board 12 can be switched from a large starting current to a smaller holding current according to the detected opening and closing signal, thereby realizing that the pinch valve is opened by a larger current and the open state of the pinch valve is maintained by a smaller current. When the pinch valve is closed by mistake due to unexpected use, man-made, vibration and the like, the photoelectric switch 4 receives the related signal due to the separation of the light shielding sheet 5, and the control circuit board 12 increases a reverse current to reopen the pinch valve.
Specific working principle:
1. As shown in fig. 6-2, the clinical line is located in the line channel 13 (shown in fig. 9) of the chuck 1, the working end 15 abuts the clinical line against the abutment portion 18, and the light shielding sheet 5 leaves the photoelectric switch 4, and the clinical line is in a closed state.
2. As shown in fig. 6-1, the rotary driving device 6 is started, the power output end of the rotary driving device 6 drives the driving end 16 of the eccentric column 3, so as to drive the working end 15 of the eccentric column 3 to rotate, and further the working end 15 is far away from the abutting part 18, so that the opening of a clinical pipeline is realized, at this time, the swinging rod 20 drives the light shielding sheet 5 to be close to the photoelectric switch 4, and the photoelectric switch 4 detects that the pinch valve is opened. At this time, the control circuit board 12 is changed from a large start-up opening current to a smaller holding current to maintain the pinch valve in an open state, so as to solve the problem of heating of the pinch valve.
3. When the pinch valve needs to be closed, the rotary driving device 6 is powered off, and under the action of the elastic force of the plane scroll spring 10, the plane scroll spring 10 drives the driving shaft of the rotary driving device 6 to reversely rotate, so that the eccentric column 3 is driven to reversely rotate, the working end 15 is close to the abutting part 18, and the clinical pipeline is abutted against the abutting part 18, so that the clinical pipeline is closed. At this time, the limit stop 8 approaches the Guan Xianwei column 7 and finally abuts against the Guan Xianwei column 7. The closing of the clinical pipeline is realized by adopting the elastic force of the plane scroll spring 10, so that the clamping function of clinical pipelines with different pipe diameters can be realized; the disadvantage of the prior art that the clamping function is realized by adopting the electric function is that: because of the fixed rotation position, only the pipelines with the same pipe diameter can be clamped.
4. When the pinch valve is closed by mistake due to unexpected use, human, vibration and the like, the light shielding sheet 5 can leave the photoelectric switch 4, the photoelectric switch 4 can output related signals outwards, and the control circuit board 12 can increase a reverse current to re-open the pinch valve. The cooperation of the shading sheet 5 and the photoelectric switch 4 realizes a pinch valve opening position detection function, and is used for realizing that the pinch valve maintains the open state of the pinch valve with small current and the pinch valve is opened again by increasing reverse current when the pinch valve is closed in unexpected use.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.
Claims (3)
1. The novel plane spring pinch valve device is characterized by comprising an eccentric column (3) and a chuck (1), wherein a pipeline channel (13) and an opening and closing channel (14) which are mutually intersected are arranged on the chuck (1), one end of the eccentric column (3) is a working end (15), the other end of the eccentric column is a driving end (16), the working end (15) is positioned in the opening and closing channel (14), the driving end (16) drives the working end (15) to positively or reversely rotate in the opening and closing channel (14), and the working end (15) is far away from or propped against the inner wall of the pipeline channel (13) when positively rotating;
The clamping head (1) is a cylindrical clamping head, and a U-shaped groove (22) is formed in the wall of the first end of the cylindrical clamping head; the U-shaped groove (22) is formed in the direction parallel to the axis of the cylindrical chuck and extends from the end of the first end cylinder wall to the end of the second end cylinder wall; the axial cavity of the cylindrical chuck is the opening and closing channel (14);
The U-shaped groove (22) comprises an upper U-shaped groove and a lower U-shaped groove, a channel from the upper U-shaped groove to the lower U-shaped groove is the pipeline channel (13), a boss (17) extends from the inner wall of the first end cylinder wall towards the pipeline channel (13), and a propping part (18) for blocking the pipeline channel (13) extends from the inner wall of the upper U-shaped groove and/or the lower U-shaped groove towards the pipeline channel (13); the working end (15) is far away from or abuts against the abutting part (18) when rotating forwards;
the end of the second end cylinder wall is fixedly arranged on a chuck seat (19), a fixed bracket (2) is arranged on the end surface of the chuck seat (19) far away from the second end cylinder wall, a photoelectric switch (4) is arranged on the fixed bracket (2), a light shielding sheet (5) is arranged at one end of a swinging rod (20), and the other end of the swinging rod (20) sequentially penetrates through a swinging hole on the fixed bracket (2) and a swinging hole on the chuck seat (19) to be fixedly connected with the driving end (16); one end of the driving end (16) far away from the working end (15) sequentially penetrates through the shaft hole on the chuck seat (19) and the shaft hole on the fixed support (2) to be in driving connection with a driving shaft of the rotary driving device (6);
The driving shaft of the rotary driving device (6) penetrates through a shaft hole in a limit post mounting seat (21) to be fixedly connected with a limit stop (8), a Guan Xianwei post (7) and an open limit post (9) are mounted on the limit post mounting seat (21), the limit stop (8) is positioned between the Guan Xianwei post (7) and the open limit post (9), and a buffer part (23) is fixedly mounted on one side, adjacent to the limit stop (8), of the Guan Xianwei post (7) and the open limit post (9); the limit stop (8), the Guan Xianwei column (7) and the opening limit column (9) are all positioned in a cavity of a rear shell (11), the rear shell (11) and the limit column mounting seat (21) are fixedly mounted together, a plane scroll spring (10) is mounted in the cavity of the rear shell (11), one end of the plane scroll spring (10) is fixedly connected with the inner wall of the rear shell (11), and the other end of the plane scroll spring (10) is fixedly connected with a driving shaft of the rotary driving device (6);
The driving end (16) is in driving connection with the rotary driving device (6), and a control circuit board (12) is further arranged on the rear shell (11);
the working end (15) is semi-cylindrical, the diameter of the cylinder where the working end (15) is located is smaller than that of the cylinder where the driving end (16) is located, and the axis of the cylinder where the working end (15) is located is parallel to the axis of the cylinder where the driving end (16) is located.
2. A new planar pinch valve device according to claim 1, characterized in that said abutment portion (18) is located on said piping channel (13) between said upper and lower U-shaped grooves.
3. The novel planar spring pinch valve device of claim 2, wherein said abutment portion (18) is one and adjacent to said upper or lower U-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911143961.7A CN110701339B (en) | 2019-11-20 | 2019-11-20 | Novel plane spring pinch valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911143961.7A CN110701339B (en) | 2019-11-20 | 2019-11-20 | Novel plane spring pinch valve device |
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| Publication Number | Publication Date |
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| CN110701339A CN110701339A (en) | 2020-01-17 |
| CN110701339B true CN110701339B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911143961.7A Active CN110701339B (en) | 2019-11-20 | 2019-11-20 | Novel plane spring pinch valve device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118881766B (en) * | 2024-09-30 | 2025-01-14 | 烟台鑫矿服材料科技有限公司 | A pinch valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508650A (en) * | 2016-01-07 | 2016-04-20 | 中国科学院电工研究所 | Electric pinch valve |
| CN207701823U (en) * | 2017-12-28 | 2018-08-07 | 北京哈特凯尔医疗科技有限公司 | Rotary magnet clamp valve gear |
| CN210859886U (en) * | 2019-11-20 | 2020-06-26 | 北京哈特凯尔医疗科技有限公司 | Novel plane spring pinch valve device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008051163B4 (en) * | 2008-10-10 | 2014-04-24 | Fresenius Kabi Deutschland Gmbh | Device for opening a pipe |
| CN107754055A (en) * | 2017-11-24 | 2018-03-06 | 万治华 | A kind of infusion controller and infusion management system |
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2019
- 2019-11-20 CN CN201911143961.7A patent/CN110701339B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508650A (en) * | 2016-01-07 | 2016-04-20 | 中国科学院电工研究所 | Electric pinch valve |
| CN207701823U (en) * | 2017-12-28 | 2018-08-07 | 北京哈特凯尔医疗科技有限公司 | Rotary magnet clamp valve gear |
| CN210859886U (en) * | 2019-11-20 | 2020-06-26 | 北京哈特凯尔医疗科技有限公司 | Novel plane spring pinch valve device |
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| CN110701339A (en) | 2020-01-17 |
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