CN220819937U - Thin-layer chromatography sample application pen capable of controlling flow - Google Patents
Thin-layer chromatography sample application pen capable of controlling flow Download PDFInfo
- Publication number
- CN220819937U CN220819937U CN202322633301.5U CN202322633301U CN220819937U CN 220819937 U CN220819937 U CN 220819937U CN 202322633301 U CN202322633301 U CN 202322633301U CN 220819937 U CN220819937 U CN 220819937U
- Authority
- CN
- China
- Prior art keywords
- sample application
- application pen
- liquid
- pen body
- layer chromatography
- 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
- 238000004809 thin layer chromatography Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 8
- 235000017491 Bambusa tulda Nutrition 0.000 description 8
- 241001330002 Bambuseae Species 0.000 description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 8
- 239000011425 bamboo Substances 0.000 description 8
- 239000011550 stock solution Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a thin-layer chromatography sample application pen with controllable flow, which comprises a sample application pen body and a disposable pen point, wherein an assembly structure is arranged between the sample application pen body and the disposable pen point, and a liquid pumping structure and a liquid draining structure are respectively arranged in the sample application pen body. According to the utility model, the liquid pumping structure and the liquid discharging structure are arranged, the liquid pumping structure is utilized to pump sample liquid into the first liquid storage barrel, and then the pressing block is pushed downwards to drive the second piston to move downwards, so that air in the second liquid storage barrel enters the first liquid storage barrel along the liquid discharging pipe, the pressure in the first liquid storage barrel can be increased, part of the sample liquid in the first liquid storage barrel is forced to be discharged along the disposable pen point, the pressing block is pushed downwards in a reciprocating manner, and therefore, the sample liquid can be conveyed uniformly.
Description
Technical Field
The utility model relates to the technical field of sample application pens, in particular to a thin-layer chromatography sample application pen capable of controlling flow.
Background
Chinese patent publication No. CN210834799U discloses a thin layer chromatography sample application needle, including the stock solution section of thick bamboo, the upper end of stock solution section of thick bamboo is provided with the fixed handle, the inside of stock solution section of thick bamboo is provided with the solution chamber, the inside of solution chamber is provided with the piston rod, and the end of piston rod is provided with the piston handle, the piston rod cooperatees with the inner wall of stock solution section of thick bamboo through the rubber buffer, the inner wall of stock solution section of thick bamboo is located and is close to fixed handle department and is provided with stop device, the bottom of stock solution section of thick bamboo is provided with the inlet, be provided with the syringe needle on the inlet, the inside of syringe needle is provided with adjusting device. According to the thin-layer chromatography sample application needle, the rubber plug can be limited through the limiting device, solution is prevented from being sprayed out due to the fact that the piston rod is pulled out of the liquid storage barrel, meanwhile, the thin-layer chromatography sample application needle can be buffered through the telescopic spring, the diameter of the extraction opening can be adjusted by rotating the knob to control the control hole, the extraction speed is controlled, the thin-layer chromatography sample application needle can be used for liquid storage barrels with different diameters, and the applicability is good.
However, this device has the following drawbacks when in use: although the device can control the drawing speed, when the device performs sample application on the thin layer plates one by one, the liquid output amount of the liquid is controlled by pushing the piston rod, so that the liquid output amount of each sample application is difficult to control, and uniform sample application is not realized. Therefore, we propose a thin-layer chromatography sample application pen with controllable flow.
Disclosure of utility model
The utility model aims to provide a thin-layer chromatography sample application pen capable of controlling flow so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the thin-layer chromatography sample application pen with the controllable flow comprises a sample application pen body and a disposable pen point, wherein an assembly structure is arranged between the sample application pen body and the disposable pen point, and a liquid pumping structure and a liquid draining structure are respectively arranged in the sample application pen body;
The liquid pumping structure comprises a first liquid storage cylinder fixedly arranged on the inner wall of the sample application pen body, a first piston is slidably arranged on the inner wall of the first liquid storage cylinder, a pull rod is fixedly arranged at the upper end of the first piston, and a driving structure capable of driving the pull rod to move is arranged on the surface of the sample application pen body;
The liquid discharging structure comprises a second liquid storage cylinder fixedly arranged on the inner wall of the sample application pen body, a second piston is slidably arranged on the inner wall of the second liquid storage cylinder, a push rod is fixedly arranged at the upper end of the second piston, the upper end of the push rod extends to the outside of the sample application pen body, a reset structure capable of driving the push rod to reset is arranged, the inner wall of the second piston is respectively communicated with a liquid discharging pipe and an air inlet pipe, and the other end of the liquid discharging pipe is communicated with the inside of the first liquid storage cylinder.
Preferably, the reset structure comprises a pressing block fixedly arranged at the upper end of the push rod, a compression spring is sleeved on the surface of the pressing block, one end of the compression spring is fixedly connected with the lower end of the pressing block, and the other end of the compression spring is fixedly connected with the upper end of the sample application pen body.
Preferably, the lower extreme fixed mounting of pressing block has the guide post, and the guide slot that supplies the guide post to pass through is seted up to the upper surface of sample application pen body, and the surface fixed mounting of guide post has the stopper.
Preferably, the other end of the air inlet pipe extends to the outside of the sample application pen body, and the surfaces of the air inlet pipe and the liquid discharge pipe are provided with one-way valves.
Preferably, the driving structure comprises a sliding block, a strip-shaped groove for the sliding block to pass through is formed in the surface of the sample application pen body, one end of the sliding block is fixedly connected with the right side face of the pull rod, the other end of the sliding block is fixedly provided with a connecting frame, and the inner wall of the connecting frame is rotationally connected with a clamping plate through a connecting shaft.
Preferably, one side of the clamping plate, which is close to the sample application pen body, is fixedly provided with a clamping block, and the surface of the connecting shaft is sleeved with a torsion spring which can drive the clamping block to be close to the sample application pen body.
Preferably, the material of the clamping block is composed of rubber, and the surface of the clamping plate is provided with anti-skid patterns.
Preferably, the assembly structure comprises a thread cylinder fixedly arranged at the lower end of the sample application pen body, the upper end of the thread cylinder is communicated with the interior of the first piston, and the inner wall of the disposable pen point is provided with an internal thread matched with the thread cylinder.
Compared with the prior art, the utility model has the following advantages:
1. According to the utility model, the liquid pumping structure and the liquid discharging structure are arranged, the liquid pumping structure is utilized to pump sample liquid into the first liquid storage barrel, and then the pressing block is pushed downwards to drive the second piston to move downwards, so that air in the second liquid storage barrel enters the first liquid storage barrel along the liquid discharging pipe, the pressure in the first liquid storage barrel can be increased, part of the sample liquid in the first liquid storage barrel is forced to be discharged along the disposable pen point, the pressing block is pushed downwards in a reciprocating manner, and therefore, the sample liquid can be conveyed uniformly.
2. According to the utility model, the reset structure is arranged, when the pressing block is pushed downwards, the compression spring can shrink at the moment, and when the pressing block is loosened, the compression spring can drive the second piston to reset while resetting, so that preparation can be made for pushing the pressing block again, and the use of operators is facilitated.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic illustration of a front cross-sectional structure of the present utility model;
FIG. 3 is a schematic side view of a driving structure according to the present utility model;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2A;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2B;
Fig. 6 is a schematic side sectional view of the spotting pen according to the present utility model.
In the figure: 1. a sample application pen body; 2. disposable pen point; 3. a first reservoir; 4. a first piston; 5. a pull rod; 6. a second reservoir; 7. a second piston; 8. a push rod; 9. a liquid discharge pipe; 10. an air inlet pipe; 11. pressing the blocks; 12. a compression spring; 13. a guide post; 14. a limiting block; 15. a slide block; 16. a connection frame; 17. a clamping plate; 18. clamping blocks; 19. a torsion spring; 20. a screw thread cylinder.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-6, a thin-layer chromatography sample application pen with controllable flow comprises a sample application pen body 1 and a disposable pen head 2, wherein an assembly structure is arranged between the sample application pen body 1 and the disposable pen head 2, the assembly structure comprises a thread cylinder 20 fixedly installed at the lower end of the sample application pen body 1, an inner thread matched with the thread cylinder 20 is formed on the inner wall of the disposable pen head 2, the inner thread of the inner wall of the disposable pen head 2 is in threaded connection with the thread cylinder 20, and therefore the disposable pen head 2 and the sample application pen body 1 can be assembled into a whole.
The inside of sample application pen body 1 is provided with drawing liquid structure and flowing back structure respectively, and drawing liquid structure includes the first liquid storage tube 3 of fixed mounting at sample application pen body 1 inner wall, and first piston 4 is installed to the inner wall slidable mounting of first liquid storage tube 3, and the upper end and the inside intercommunication of first piston 4 of screw thread section of thick bamboo 20, and the upper end fixed mounting of first piston 4 has pull rod 5, and upward pulling pull rod 5 can drive first piston 4 and upwards remove to can be quick with sample liquid along screw thread section of thick bamboo 20 inhale in the first liquid storage tube 3.
The surface of sample application pen body 1 is provided with the drive structure that can order about pull rod 5 to remove, drive structure includes slider 15, the bar groove that supplies slider 15 to pass through is seted up on the surface of sample application pen body 1, the one end of slider 15 and the right flank fixed connection of pull rod 5, the other end fixed mounting of slider 15 has linking frame 16, the inner wall of linking frame 16 is connected with splint 17 through the connecting axle rotation, splint 17 are close to one side fixed mounting of sample application pen body 1 has clamp splice 18, the surface cover of connecting axle is equipped with can order about clamp splice 18 and is close to sample application pen body 1's torsional spring 19, clamp splice 18's material comprises rubber, splint 17's surface is provided with the anti-skidding line.
The clamping plate 17 is rotated to drive the clamping block 18 to separate from the sample application pen body 1, at the moment, the torsional spring 19 is in an open state, and then the clamping plate 17 is pushed upwards to drive the sliding block 15 to move, so that the pull rod 5 can be driven to rise, when the clamping plate 17 needs to be fixed, the clamping plate 17 is loosened, the torsional spring 19 can drive the clamping block 18 to be in contact with the sample application pen body 1 while resetting, and the sample application pen body 1 can be clamped by utilizing the clamping block 18, so that the clamping plate 17 can be prevented from moving.
The liquid discharging structure comprises a second liquid storage cylinder 6 fixedly arranged on the inner wall of the sample application pen body 1, a second piston 7 is slidably arranged on the inner wall of the second liquid storage cylinder 6, a push rod 8 is fixedly arranged at the upper end of the second piston 7, the upper end of the push rod 8 extends to the outside of the sample application pen body 1, a reset structure capable of driving the push rod 8 to reset is arranged, the reset structure comprises a pressing block 11 fixedly arranged at the upper end of the push rod 8, a compression spring 12 is sleeved on the surface of the pressing block 11, one end of the compression spring 12 is fixedly connected with the lower end of the pressing block 11, the other end of the compression spring 12 is fixedly connected with the upper end of the sample application pen body 1, a guide post 13 is fixedly arranged at the lower end of the pressing block 11, a guide groove for the guide post 13 to pass through is formed in the upper surface of the sample application pen body 1, a limiting block 14 is fixedly arranged on the surface of the guide post 13, the moving track of the pressing block 11 can be limited, and the limiting block 14 can limit the descending height of the pressing block 11.
Pushing down the pressing block 11 can drive the push rod 8 to descend so as to drive the second piston 7 to move downwards, at the moment, the compression spring 12 can shrink, when the pressing block 11 is loosened, the compression spring 12 can drive the second piston 7 to reset while resetting, so that preparation can be made for pushing the pressing block 11 again, and the use of operators is facilitated.
The inner wall of second piston 7 has linked together fluid-discharge tube 9 and intake pipe 10 respectively, the other end of fluid-discharge tube 9 communicates with the inside of first reservoir 3, the other end of intake pipe 10 extends to the outside of sample application pen body 1, and the surface of intake pipe 10 and fluid-discharge tube 9 all is provided with the check valve, the check valve on fluid-discharge tube 9 surface can block the liquid in the first reservoir 3 to get into in the second reservoir 6 along fluid-discharge tube 9, the check valve on intake pipe 10 surface can block the gas in the second reservoir 6 and discharge outside along intake pipe 10.
The pressing block 11 is pushed downwards to drive the second piston 7 to move downwards, so that air in the second liquid storage barrel 6 enters the first liquid storage barrel 3 along the liquid discharge pipe 9, the pressure in the first liquid storage barrel 3 can be increased, part of sample liquid in the first liquid storage barrel 3 is forced to be discharged along the disposable pen point 2, the pressing block 11 is pushed downwards in a reciprocating mode, and therefore even sample liquid conveying can be achieved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a controllable flow thin layer chromatography sample application pen, includes sample application pen body (1) and disposable nib (2), its characterized in that: an assembling structure is arranged between the sample application pen body (1) and the disposable pen point (2), and a liquid pumping structure and a liquid draining structure are respectively arranged in the sample application pen body (1);
The liquid pumping structure comprises a first liquid storage cylinder (3) fixedly arranged on the inner wall of the sample application pen body (1), a first piston (4) is slidably arranged on the inner wall of the first liquid storage cylinder (3), a pull rod (5) is fixedly arranged at the upper end of the first piston (4), and a driving structure capable of driving the pull rod (5) to move is arranged on the surface of the sample application pen body (1);
The liquid discharging structure comprises a second liquid storage cylinder (6) fixedly mounted on the inner wall of the sample application pen body (1), a second piston (7) is slidably mounted on the inner wall of the second liquid storage cylinder (6), a push rod (8) is fixedly mounted at the upper end of the second piston (7), the upper end of the push rod (8) extends to the outside of the sample application pen body (1), a reset structure capable of driving the push rod (8) to reset is arranged, a liquid discharging pipe (9) and an air inlet pipe (10) are respectively communicated with the inner wall of the second piston (7), and the other end of the liquid discharging pipe (9) is communicated with the inside of the first liquid storage cylinder (3).
2. The controllable flow thin layer chromatography sample application pen of claim 1, wherein: the reset structure comprises a pressing block (11) fixedly mounted at the upper end of the push rod (8), a compression spring (12) is sleeved on the surface of the pressing block (11), one end of the compression spring (12) is fixedly connected with the lower end of the pressing block (11), and the other end of the compression spring (12) is fixedly connected with the upper end of the sample application pen body (1).
3. The controllable flow thin layer chromatography sample application pen of claim 2, wherein: the lower extreme fixed mounting of pressing block (11) has guide post (13), and the guide way that supplies guide post (13) to pass through is seted up to the upper surface of sample application pen body (1), and the surface fixed mounting of guide post (13) has stopper (14).
4. The controllable flow thin layer chromatography sample application pen of claim 1, wherein: the other end of the air inlet pipe (10) extends to the outside of the sample application pen body (1), and the surfaces of the air inlet pipe (10) and the liquid discharge pipe (9) are provided with one-way valves.
5. The controllable flow thin layer chromatography sample application pen of claim 1, wherein: the driving structure comprises a sliding block (15), a strip-shaped groove for the sliding block (15) to pass through is formed in the surface of the sample application pen body (1), one end of the sliding block (15) is fixedly connected with the right side face of the pull rod (5), the other end of the sliding block (15) is fixedly provided with a connecting frame (16), and the inner wall of the connecting frame (16) is rotationally connected with a clamping plate (17) through a connecting shaft.
6. The controllable flow thin-layer chromatography sample application pen of claim 5, wherein: one side of the clamping plate (17) close to the sample application pen body (1) is fixedly provided with a clamping block (18), and the surface of the connecting shaft is sleeved with a torsion spring (19) which can drive the clamping block (18) to be close to the sample application pen body (1).
7. The controllable flow thin-layer chromatography sample application pen of claim 6, wherein: the clamping blocks (18) are made of rubber, and anti-skid patterns are arranged on the surfaces of the clamping plates (17).
8. The controllable flow thin-layer chromatography sample application pen of claim 5, wherein: the assembly structure comprises a thread cylinder (20) fixedly arranged at the lower end of the sample application pen body (1), the upper end of the thread cylinder (20) is communicated with the interior of the first piston (4), and the inner wall of the disposable pen point (2) is provided with an internal thread matched with the thread cylinder (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322633301.5U CN220819937U (en) | 2023-09-27 | 2023-09-27 | Thin-layer chromatography sample application pen capable of controlling flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322633301.5U CN220819937U (en) | 2023-09-27 | 2023-09-27 | Thin-layer chromatography sample application pen capable of controlling flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220819937U true CN220819937U (en) | 2024-04-19 |
Family
ID=90710736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322633301.5U Active CN220819937U (en) | 2023-09-27 | 2023-09-27 | Thin-layer chromatography sample application pen capable of controlling flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220819937U (en) |
-
2023
- 2023-09-27 CN CN202322633301.5U patent/CN220819937U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110523557B (en) | Efficient handheld spray gun and spraying method | |
| EP0378286A3 (en) | Dispenser | |
| CN108325060A (en) | A kind of dept. of dermatology's skin medicine-feeding care instrument | |
| CN112177373A (en) | High-precision glue injection device for building structure reinforcement and use method | |
| CN220819937U (en) | Thin-layer chromatography sample application pen capable of controlling flow | |
| CN206731148U (en) | A kind of micro sample adding appliance for preventing mucus | |
| CN2816405Y (en) | Atomizing pump | |
| CN211396503U (en) | Seam beautifying device for decoration ceramic tiles | |
| CN212016308U (en) | Cupping device with air exhaust assembly for traditional Chinese medicine physiotherapy | |
| CN202129197U (en) | Check adhesive dispensing valve of piston | |
| CN109501740A (en) | Automobile maintenance Wax polishing device | |
| CN210009176U (en) | Continuous controllable nasal drip device for animals | |
| CN207779752U (en) | A kind of liquid sampling filtering device | |
| CN2338019Y (en) | Disposable and airprssure type automatic syringe | |
| CN211845600U (en) | Novel sliding lotion bottle | |
| CN214385222U (en) | Maize stem base injection inoculation device | |
| CN212478427U (en) | Wall glue brushing device | |
| CN220780846U (en) | Alcohol atomizer convenient to carry | |
| CN219722002U (en) | Defoaming device for producing semiconductor double-solid UV adhesive | |
| CN217910498U (en) | Liquid-transfering gun | |
| CN2472232Y (en) | Burette for determining solution concentration | |
| CN219898864U (en) | Plastic part bonding adhesive dispensing device | |
| CN211563552U (en) | Multi-head dispensing mold | |
| CN2505594Y (en) | Uniform releasing isotope releasing arrangement | |
| CN213943192U (en) | Stem cell micro-adjustable liquid transfer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |