CN209781181U - Peristaltic pump head capable of instantly releasing pressure - Google Patents
Peristaltic pump head capable of instantly releasing pressure Download PDFInfo
- Publication number
- CN209781181U CN209781181U CN201920335439.8U CN201920335439U CN209781181U CN 209781181 U CN209781181 U CN 209781181U CN 201920335439 U CN201920335439 U CN 201920335439U CN 209781181 U CN209781181 U CN 209781181U
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- main shaft
- hose
- peristaltic pump
- pressing block
- pump
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- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 41
- 230000009471 action Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 21
- 210000001503 joint Anatomy 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a peristaltic pump head that can instant pressure release belongs to peristaltic pump technical field. The peristaltic pump solves the problems that a hose in an existing peristaltic pump is easy to deviate and pressure can not be released instantly. Peristaltic pump head that can instant pressure release, the pump body that has the pump chamber including inside, the left and right sides of the pump body is equipped with a clamp hole that communicates with the pump chamber respectively, a hose is worn out by another clamp hole after penetrating the pump chamber through one of them clamp hole, wear to be equipped with the main shaft that extends along pump body fore-and-aft direction in the pump chamber, be equipped with a plurality of rollers that encircle main shaft evenly distributed on the main shaft, the top of pump chamber has the face of cylinder with the coaxial setting of main shaft, the spacing recess one that is used for spacing hose that has the hoop extension on the face of cylinder, the during operation rotates the roller extrusion to the main shaft top on being located the hose of spacing recess one, be equipped with the shrinkage pool along the radial. The utility model has the advantages of good positioning effect on the hose, instant pressure relief and the like.
Description
Technical Field
The utility model belongs to the technical field of the peristaltic pump, a peristaltic pump head that can instant pressure release is related to.
background
The peristaltic pump is a novel fluid delivery pump following a rotor pump, a centrifugal pump, a diaphragm pump and the like, and is widely popularized and applied in various industries such as medical treatment, medicine, food, beverage, chemical industry, smelting and the like. The liquid of the prior peristaltic pump can not stop flowing out immediately when the motor stops rotating, but the problem of liquid dripping can occur, great discomfort can be brought to doctors when the peristaltic pump is used, particularly when the peristaltic pump is applied to medical operations, and the operation time is wasted.
Therefore, the Chinese patent discloses a multipurpose combined peristaltic pump (with the publication number of CN 207634276U), which comprises a lower supporting seat, a motor, a roller, a wheel carrier, a hose, a positioning slide block and a displacement adjusting mechanism, wherein the lower supporting seat is provided with a plurality of positioning holes; the front end of lower carriage is fixed to be installed 2 and is connected the fixing base, and both sides detachable has installed and connect the fixing base, and the motor is installed in the lower carriage below, and the wheel carrier sets up in the lower carriage upper end and through motor drive, and the gyro wheel is installed on the wheel carrier, and the gyro wheel is peripheral in the hose cover, and the lower carriage rear end is located to the location slider, and displacement adjustment mechanism locates on the location slider.
Although the peristaltic pump can adjust the position of the positioning slide block relative to the hose through the displacement adjusting mechanism, and the problem that the hose drops after the peristaltic pump stops is solved, the peristaltic pump still has the following problems: because the location slider is located the top of hose, and the face that location slider and hose contacted is the smooth surface, does not set up the limit structure of hose, when adjustment mechanism made location slider wholly break away from the hose, radial movement and the position when squinting operating condition very easily appear in the hose, causes next during operation effectively to carry liquid.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems in the prior art, and provides a peristaltic pump head which has good hose positioning effect and can realize instant pressure relief.
The purpose of the utility model can be realized by the following technical proposal:
Peristaltic pump head that can instant pressure release, including the inside pump body that has the pump chamber, the left and right sides of the pump body is equipped with a clamp hole that communicates with the pump chamber respectively, and a hose is worn out by another clamp hole after penetrating the pump chamber through one of them clamp hole, the pump chamber in wear to be equipped with the main shaft that extends along pump body fore-and-aft direction, the main shaft on be equipped with a plurality of rollers that encircle main shaft evenly distributed, its characterized in that, the top of pump chamber has the face of cylinder with the coaxial setting of main shaft, the face of cylinder on have the hoop extend be used for spacing recess one of spacing hose, the during operation rotates extremely the roller extrusion of main shaft top is on being located the hose of spacing recess one, the face of cylinder on be equipped with along the radial shrinkage pool of extending of main shaft, the shrinkage.
The left side of the pump body is provided with a first clamping hole communicated with the pump cavity, the right side of the pump body is provided with a second clamping hole communicated with the pump cavity, the hose penetrates through the second clamping hole after penetrating into the pump cavity through the first clamping hole, the first clamping hole and the second clamping hole are located at the same height, the opening degree of the first clamping hole and the second clamping hole is smaller than the diameter of the hose, and the hose is clamped in the first clamping hole and the second clamping hole to limit axial movement of the hose. One end of the first limiting groove extends to the first clamping hole, the other end of the first limiting groove extends to the second clamping hole, the hose penetrates through the first clamping hole and is limited in the first limiting groove by the roller, then the hose penetrates out of the second clamping hole, and the end, penetrating out of the second clamping hole, of the hose is the liquid outlet end of the hose. On the premise of ensuring the hose conveying effect, the depth of the first limiting groove is as small as possible as long as the hose can be limited to move along the front-back direction of the pump body. For example, the depth of the first limit groove should be smaller than the radius of the hose.
The bearing is arranged between the main shaft and the front side face of the pump body, the bearing is also arranged between the main shaft and the rear side face of the pump body, the part, penetrating out of the rear side face of the pump body, of the rear end of the main shaft is in transmission connection with a motor, the motor drives the main shaft to rotate when working, and the roller is driven to rotate around the main shaft to extrude the hose when the main shaft rotates, so that liquid in the hose is conveyed forwards. The liquid is delivered in the same way as a peristaltic pump of conventional construction.
The hose is limited to move along the front and back direction of the pump body through the limiting groove I arranged on the cylindrical surface, the hose is prevented from moving and deviating from the working state, the hose is well positioned, and liquid can be effectively conveyed in the next working process. After the motor driving the main shaft to move stops, the pressure can be timely relieved through the pressure relief structure, and liquid in the hose is prevented from dripping.
In the peristaltic pump head capable of instantly relieving pressure, the pressure relieving structure comprises a pressing block arranged in the concave hole in a sliding mode and a driving unit used for driving the pressing block to slide in the concave hole, one end, close to the main shaft, of the pressing block is arranged in a matched mode with the cylindrical surface, and a second limiting groove matched with the first limiting groove is formed in the pressing block.
When the main shaft is in a working state, one end, close to the main shaft, of the pressing block and the cylindrical surface are located in the same annular surface, the second limiting groove is in butt joint with the first limiting groove, and the hose is located in the first limiting groove and the second limiting groove simultaneously. When the main shaft stops rotating, the pressing block is far away from the main shaft under the action of the driving unit, the hose is decompressed, and liquid in the hose is prevented from dripping. In order to provide a good pressure relief effect, the concave hole is arranged right above the main shaft.
In the peristaltic pump head capable of releasing pressure instantly, the side wall of the concave hole is provided with a guide groove extending along the length direction of the concave hole, the pressing block is provided with a guide rod extending into the guide groove, the driving unit is positioned outside the pump body and acts on the guide rod, and when the guide rod moves to the lowest end of the guide groove, one end of the pressing block close to the main shaft and the cylindrical surface are positioned in the same annular surface. The guide groove and the guide rod not only guide the movement of the pressing block, but also limit the pressing block, and ensure that the pressing block can move in place. The part of the guide rod penetrating through the guide groove is connected with a driving unit positioned outside, the driving unit and a motor driving the main shaft to rotate are positioned in the same control system, and the driving unit can immediately make corresponding actions when the motor stops rotating.
In the peristaltic pump head capable of releasing pressure instantly, a spring is arranged between the top of the concave hole and the pressing block, the elastic direction of the spring is parallel to the length direction of the concave hole, and the guide rod is abutted against the lowest end of the guide groove under the elastic action of the spring.
When the driving unit drives the pressing block to move away from the main shaft, the spring needs to be further compressed by overcoming the elastic force of the spring, and the spring can provide the elastic force for resetting the pressing block. The spring is positioned in the middle of the pressing block, the elastic force exerted on the pressing block by the spring extends along the center line of the pressing block, the pressing block is provided with a protruding part, and one end, close to the pressing block, of the spring is sleeved on the protruding part. The elastic force of the spring applied on the pressing block is larger than the extrusion force of the roller to the hose, so that pressure relief is prevented during working.
In the peristaltic pump head capable of instantly relieving pressure, the driving unit is an air cylinder. The telescopic of the cylinder piston rod can drive the guide rod to move along the guide groove, so that the pressing block is driven to slide in the concave hole.
In the peristaltic pump head capable of instantly relieving pressure, the number of the rollers is 3-6. The preferred number is 3.
When the device works, one end, close to the main shaft, of the pressing block and the cylindrical surface are located in the same annular surface, the second limiting groove is in butt joint with the first limiting groove, the hose is located in the first limiting groove and the second limiting groove simultaneously, and the hose is extruded through two adjacent rollers to convey liquid. When the main shaft stops rotating, the driving unit drives the pressing block to be away from the main shaft, the hose between the two adjacent rollers is decompressed, and liquid in the hose is prevented from dripping.
Compared with the prior art, the pump head of the peristaltic pump capable of instantly relieving pressure has the following advantages:
The hose is radially limited by the first limiting groove arranged on the cylindrical surface and the two pairs of limiting grooves arranged on the pressing block, so that the hose is prevented from radially moving to deviate from the position in a working state, the hose is well positioned, and liquid can be effectively conveyed in the next working process; the pressure relief structure can realize the instant pressure relief of the hose and prevent the liquid in the hose from dripping.
Drawings
Fig. 1 is a schematic structural diagram of a pump head of a peristaltic pump provided by the present invention.
Fig. 2 is a front view of a partial structure of a pump head of a peristaltic pump provided by the present invention.
Fig. 3 is another front view of a partial structure of a pump head of a peristaltic pump according to the present invention.
Fig. 4 is a rear view of a partial structure of a pump head of a peristaltic pump provided by the present invention.
Fig. 5 is a rear view of a part of the structure of the pump head of the peristaltic pump according to the present invention.
Fig. 6 is a schematic structural diagram of a pressing block in the pump head of the peristaltic pump provided by the present invention.
In the figure, 1, a pump body; 11. a first clamping hole; 12. a second clamping hole; 13. a cylindrical surface; 14. a first limiting groove; 15. concave holes; 16. a guide groove; 2. a hose; 3. a main shaft; 4. a roller; 5. briquetting; 51. a second limiting groove; 52. a guide bar; 6. a spring; 71. a first lower supporting block; 72. and a second lower supporting block.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
The structure of the peristaltic pump head capable of instantly relieving pressure is shown in figure 1, and comprises a pump body 1 with a pump cavity inside, as shown in figure 3, the left side of the pump body 1 is provided with a first clamping hole 11 communicated with the pump cavity, the right side of the pump body is provided with a second clamping hole 12 communicated with the pump cavity, as shown in figure 2, a hose 2 penetrates into the pump cavity through the first clamping hole 11 and then penetrates out of the second clamping hole 12, as shown in figures 2 and 3, a main shaft 3 extending along the front-back direction of the pump body 1 penetrates through the pump cavity, and a plurality of rollers 4 uniformly distributed around the main shaft 3 are arranged on the main shaft 3. In the present embodiment, the number of the rollers 4 is 3.
As shown in fig. 3, the top of the pump cavity is provided with a cylindrical surface 13 which is coaxial with the main shaft 3, the cylindrical surface 13 is provided with a first limiting groove 14 which extends annularly and is used for limiting the hose 2, the roller 4 which rotates to the position above the main shaft 3 when in work (the roller is considered to be positioned above the main shaft as long as the height of the roller is higher than that of the main shaft) is extruded on the hose 2 positioned in the first limiting groove 14, and the upper part of the pump body 1 is provided with a pressure relief structure.
As shown in fig. 3, the first clamping hole 11 and the second clamping hole 12 are located at the same height, the opening degree of the first clamping hole 11 and the opening degree of the second clamping hole 12 are smaller than the diameter of the hose 2, and the hose 2 is clamped in the first clamping hole 11 and the second clamping hole 12 to limit the axial movement of the hose 2. One end of the first limiting groove 14 extends to the first clamping hole 11, the other end of the first limiting groove extends to the second clamping hole 12, the hose 2 penetrates through the first clamping hole 11 and then is limited in the first limiting groove 14 by the roller 4, then penetrates out of the second clamping hole 12, and the end, penetrating out of the second clamping hole 12, of the hose 2 is the liquid outlet end of the hose. On the premise of ensuring the conveying effect of the hose 2, the depth of the first limiting groove 14 is as small as possible as long as the hose 2 can be limited to move along the front and back directions of the pump body 1. Specifically, the depth of the first limit groove 14 is smaller than the radius of the hose 2.
The cross section of the first limiting groove 14 is arc-shaped and is matched with the hose 2.
The part of the rear end of the main shaft 3, which penetrates out of the rear side face of the pump body 1, is in transmission connection with a motor, the motor drives the main shaft 3 to rotate during working, and the main shaft 3 drives the roller 4 to rotate around the main shaft 3 to extrude the hose 2 so as to convey liquid in the hose 2 forwards. The liquid is delivered in the same way as a peristaltic pump of conventional construction.
Can restrict the hose 2 through setting up spacing recess 14 on face of cylinder 13 and move along the pump body fore-and-aft direction, prevent that hose 2 from removing and the position when squinting operating condition, it is effectual to the location of hose 2, guarantee that the during operation next time can effectively carry liquid. After the motor driving the main shaft 3 to move stops, the pressure can be released in time through the pressure release structure, and liquid in the hose 2 is prevented from dripping.
As shown in fig. 4 and 5, the pressure relief structure includes a concave hole 15 arranged on the cylindrical surface 13 and extending along the radial direction of the main shaft 3, a pressure block 5 slidably arranged in the concave hole 15, and a driving unit for driving the pressure block 5 to slide in the concave hole 15, one end of the pressure block 5 close to the main shaft 3 is arranged in cooperation with the cylindrical surface 13, and as shown in fig. 5 and 6, a second limit groove 51 arranged in cooperation with the first limit groove 14 is arranged on the pressure block 5.
When the main shaft 3 is in a working state, one end, close to the main shaft 3, of the pressing block 5 and the cylindrical surface 13 are located in the same annular surface, the second limiting groove 51 is in butt joint with the first limiting groove 14, and the hose 2 is located in the first limiting groove 14 and the second limiting groove 51 simultaneously. When the main shaft 3 stops rotating, the pressing block 5 is far away from the main shaft 3 under the action of the driving unit, the pressure of the hose 2 is relieved, and liquid in the hose 2 is prevented from dripping. In order to provide a good pressure relief effect, the recess hole 15 is provided directly above the spindle 3.
As shown in fig. 6, the side wall of the concave hole 15 is provided with a guide groove 16 extending along the length direction of the concave hole 15, as shown in fig. 5, the pressure block 5 is provided with a guide rod 52 extending into the guide groove 16, the driving unit is positioned outside the pump body 1 and acts on the guide rod 52, and when the guide rod 52 moves to the lowest end of the guide groove 16, one end of the pressure block 5 close to the main shaft 3 and the cylindrical surface 13 are positioned in the same annular surface. The guide groove 16 and the guide rod 52 not only guide the movement of the pressing block 5, but also limit the pressing block 5 to ensure that the pressing block 5 can move in place. The part of the guide rod 52 which penetrates out of the guide groove 16 is connected with a driving unit which is positioned outside, the driving unit and a motor which drives the main shaft 3 to rotate are positioned in the same control system, and when the motor stops rotating, the driving unit can immediately do corresponding actions.
As shown in fig. 4, 5 and 6, a spring 6 is arranged between the top of the concave hole 15 and the pressing block 5, the elastic direction of the spring 6 is parallel to the length direction of the concave hole 15, and the guide rod 52 abuts against the lowest end of the guide groove 16 under the elastic force of the spring 6.
When the driving unit drives the pressing block 5 to move away from the main shaft 3, the spring 6 needs to be further compressed by overcoming the elastic force of the spring 6, and at the moment, the spring 6 can provide the elastic force for resetting the pressing block 5. The spring 6 is positioned in the middle of the pressing block 5, the elastic force exerted on the pressing block 5 by the spring 6 extends along the center line of the pressing block 5, a protruding part is arranged on the pressing block 5, and one end, close to the pressing block 5, of the spring 6 is sleeved on the protruding part. The elastic force of the spring 6 applied on the pressing block 5 is larger than the extrusion force of the roller 4 to the hose 2, so that the pressure relief is prevented during working.
In this embodiment, the driving unit is a cylinder. The piston rod of the air cylinder is vertically and fixedly connected with the guide rod 52, and the stretching of the piston rod of the air cylinder can drive the guide rod 52 to move along the guide groove 16, so that the pressing block 5 is driven to slide in the concave hole 15.
As shown in fig. 4, a lower support block 71 capable of sliding up and down is arranged on the front side of the pump cavity, a bearing i is arranged on the lower support block 71, the front end of the main shaft 3 penetrates through the bearing i, as shown in fig. 2, a lower support block ii 72 capable of sliding up and down is arranged on the rear side of the pump cavity, a bearing ii is arranged on the lower support block ii 72, the rear end of the main shaft 3 penetrates through the bearing ii, and a driving assembly for driving the main shaft 3 to move up and down is arranged on the pump body 1.
A first clamping groove extending up and down is formed in the front side face of the pump cavity, a first limiting guide part extending into the first clamping groove is arranged on the first lower supporting block 71, and the first lower supporting block 71 can only move up and down under the action of the first limiting guide part and the first clamping groove. A second clamping groove extending up and down is formed in the rear side face of the pump body 1, a second limiting guide part extending into the second clamping groove is arranged on the second lower supporting block 72, and the second lower supporting block 72 can only move up and down under the action of the second limiting guide part and the second clamping groove.
the first bearing is fixedly connected with the first lower support block 71, and the second bearing is fixedly connected with the second lower support block 72. The driving assembly is arranged below the pump body 1, and the driving assembly extends into the pump cavity and then drives the first lower supporting block 71 and the second lower supporting block 72 to move up and down simultaneously. In this embodiment, the driving assembly is a cylinder.
During operation, one end of the pressing block 5 close to the main shaft 3 and the cylindrical surface 13 are located in the same annular surface, the second limiting groove 51 is in butt joint with the first limiting groove 14, the hose 2 is located in the first limiting groove 14 and the second limiting groove 51 simultaneously, and the hose 2 is extruded through the two adjacent rollers 4 to convey liquid. When the main shaft 3 stops rotating, the driving unit drives the pressing block 5 to be far away from the main shaft 3, and the flexible pipe 2 between two adjacent rollers 4 is decompressed, so that liquid in the flexible pipe 2 is prevented from dripping. Meanwhile, the driving component drives the main shaft 3 to move downwards, so that the roller 4 moves away from the hose 2, and the purpose of further pressure relief is achieved. In order to prevent the hose 2 from falling out of the first limit groove 14, the descending distance of the spindle 3 is limited.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A peristaltic pump head capable of releasing pressure instantly comprises a pump body (1) with a pump cavity inside, wherein the left side and the right side of the pump body (1) are respectively provided with a clamping hole, a hose (2) penetrates into the pump cavity through one of the clamping holes and then penetrates out of the other clamping hole, a main shaft (3) extending along the front and back directions of the pump body (1) penetrates through the pump cavity, the main shaft (3) is provided with a plurality of rollers (4) uniformly distributed around the main shaft (3), the peristaltic pump head is characterized in that the top of the pump cavity is provided with a cylindrical surface (13) coaxial with the main shaft (3), the cylindrical surface (13) is provided with a first limiting groove (14) which extends circumferentially and is used for limiting the hose (2), the rollers (4) rotating to the upper part of the main shaft (3) are extruded on the hose (2) positioned in the first limiting groove (14) during work, the cylindrical surface (13) is provided with a concave hole (15) extending radially along the main, a pressure relief structure is arranged in the concave hole (15).
2. The peristaltic pump head capable of instantly relieving pressure according to claim 1, wherein the pressure relieving structure comprises a pressing block (5) slidably arranged in the concave hole (15) and a driving unit for driving the pressing block (5) to slide in the concave hole (15), one end, close to the main shaft (3), of the pressing block (5) is arranged in a matched manner with the cylindrical surface (13), and the pressing block (5) is provided with a second limiting groove (51) arranged in a matched manner with the first limiting groove (14).
3. The peristaltic pump head capable of instantly relieving pressure according to claim 2, wherein the side wall of the concave hole (15) is provided with a guide groove (16) extending along the length direction of the concave hole (15), the pressing block (5) is provided with a guide rod (52) extending into the guide groove (16), the driving unit is positioned outside the pump body (1) and acts on the guide rod (52), and when the guide rod (52) moves to the lowest end of the guide groove (16), one end of the pressing block (5) close to the main shaft (3) and the cylindrical surface (13) are positioned in the same annular surface.
4. The peristaltic pump head capable of instantly relieving pressure according to claim 3, wherein a spring (6) is arranged between the top of the concave hole (15) and the pressing block (5), the elastic force direction of the spring (6) is parallel to the length direction of the concave hole (15), and the guide rod (52) abuts against the lowest end of the guide groove (16) under the elastic force action of the spring (6).
5. The peristaltic pump head capable of being instantly depressurized according to claim 2, 3 or 4, wherein the driving unit is an air cylinder.
6. The peristaltic pump head with instant pressure relief as claimed in claim 1, 2, 3 or 4, wherein said rollers (4) are 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920335439.8U CN209781181U (en) | 2019-03-15 | 2019-03-15 | Peristaltic pump head capable of instantly releasing pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920335439.8U CN209781181U (en) | 2019-03-15 | 2019-03-15 | Peristaltic pump head capable of instantly releasing pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781181U true CN209781181U (en) | 2019-12-13 |
Family
ID=68798034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920335439.8U Expired - Fee Related CN209781181U (en) | 2019-03-15 | 2019-03-15 | Peristaltic pump head capable of instantly releasing pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110258A (en) * | 2021-11-19 | 2022-03-01 | 山东中保康医疗器具有限公司 | Blood pipeline attitude control device and blood separator with same |
| CN114352507A (en) * | 2021-12-16 | 2022-04-15 | 龙镎 | Continuous precision metering fluid pump |
-
2019
- 2019-03-15 CN CN201920335439.8U patent/CN209781181U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110258A (en) * | 2021-11-19 | 2022-03-01 | 山东中保康医疗器具有限公司 | Blood pipeline attitude control device and blood separator with same |
| CN114352507A (en) * | 2021-12-16 | 2022-04-15 | 龙镎 | Continuous precision metering fluid pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211206 Address after: 401120 1-1, 2-1, 3-1, building 5, No. 18, Cuiping Lane 2, Huixing street, Yubei District, Chongqing Patentee after: Chongqing Jinshan Medical Technology Research Institute Co.,Ltd. Address before: 401120 1 office buildings, Jinshan International Industrial City, 18 of Nei sang Road, Hui Xing street, Yubei District, Chongqing. Patentee before: CHONGQING JINSHAN MEDICAL APPLIANCE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |