CN211586707U - Chromatographic column test bench - Google Patents

Chromatographic column test bench Download PDF

Info

Publication number
CN211586707U
CN211586707U CN202020133785.0U CN202020133785U CN211586707U CN 211586707 U CN211586707 U CN 211586707U CN 202020133785 U CN202020133785 U CN 202020133785U CN 211586707 U CN211586707 U CN 211586707U
Authority
CN
China
Prior art keywords
test
placing
groove
test platform
platform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020133785.0U
Other languages
Chinese (zh)
Inventor
邹乐冰
施锦超
纪婷婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Spectrum Science And Technology Fuzhou Co ltd
Original Assignee
China Spectrum Science And Technology Fuzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Spectrum Science And Technology Fuzhou Co ltd filed Critical China Spectrum Science And Technology Fuzhou Co ltd
Priority to CN202020133785.0U priority Critical patent/CN211586707U/en
Application granted granted Critical
Publication of CN211586707U publication Critical patent/CN211586707U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Devices For Use In Laboratory Experiments (AREA)

Abstract

The utility model provides a chromatographic column test bed, including the test bed stage body, the test bed stage body openly is seted up and is used for carrying out the experimental test groove, set up a chamber of placing in the test bed stage body, and the chamber of placing set up in the test groove below, it is provided with first test platform to place the intracavity, both ends all are provided with the telescopic cylinder that goes up and down first test platform about the first test platform lower surface, the insertion groove has all been seted up all around on the first test platform upper surface, and the insertion groove communicates each other, the lower surface sets up the bar opening with first test platform matched with in the test groove, all extend downwards around in the bar opening and be provided with the extension board corresponding with the insertion groove; an opening is formed in the left side face in the test groove, and an equipment plate for placing test equipment is arranged in the opening; the utility model discloses simple structure, the simple operation can carry out the chromatographic column test better.

Description

Chromatographic column test bench
Technical Field
The utility model relates to a chromatogram purification technology auxiliary assembly field, especially a chromatographic column test bench.
Background
The chromatographic column consists of column tube, pressing cap, clamping sleeve, sieve plate, joint, screw, etc. The column tube is made of stainless steel, when the pressure is not higher than 70 kg/cm2, thick-wall glass or quartz tube can be used, and the inner wall of the tube is required to have high smoothness. In order to improve the column effect and reduce the tube wall effect, the inner wall of the stainless steel column is polished. Fluoroplastics are also coated on the inner wall of the stainless steel column to improve the smoothness of the inner wall, and the effect is the same as that of polishing. Also, use of fused silica or glass liners for thin tubing strings. Sieve plates are arranged in column joints at two ends of the chromatographic column, are sintered stainless steel or titanium alloy and have the aperture of 0.2-20 mu m (5 to 10 μm), depending on the filler particle size, in order to prevent leakage of the filler.
At present, chromatographic detection is often carried out, and the chromatographic column can be used for testing various fields needing the chromatographic test, and the specific process is as follows: the method comprises the steps of separating a sample by using a molecular sieve in a chromatographic column, separating various gas components, carrying out chromatographic analysis to obtain the component content of the sample, judging the state of the chromatographic column according to the component content, wherein the chromatographic column is usually placed on a test bed to be detected in the prior art, but the safety of the chromatographic column test bed in the prior art is not high when the chromatographic column test bed is used, instruments placed on the test bed can often fall below a table and are not particularly safe when the chromatographic column test bed is used, the unstable condition of the table can be caused along with long-time use of the existing chromatographic column test bed, the trouble of using the existing chromatographic column test bed is more troublesome, and the existing chromatographic column test bed is not provided with test beds for placing various test devices and test beds for placing various test devices, so that the test is complicated.
Disclosure of Invention
In view of the above, in order to overcome the problems in the background art, the present invention provides a chromatographic column testing stand, which can better perform a chromatographic column test.
The utility model discloses a following method realizes: a chromatographic column test bed is characterized in that: the test bed comprises a test bed body, wherein a test groove for testing is formed in the front face of the test bed body, a placing cavity is formed in the test bed body and is arranged below the test groove, a first test platform is arranged in the placing cavity, telescopic cylinders for lifting the first test platform are arranged at the left end and the right end of the lower surface of the first test platform, insertion grooves are formed in the periphery of the upper surface of the first test platform and are communicated with each other, a strip-shaped opening matched with the first test platform is formed in the lower surface of the test groove, and extension plates corresponding to the insertion grooves are arranged in the periphery of the strip-shaped opening in a downward extending mode; an opening is formed in the left side face in the test groove, a device plate for placing test devices is arranged in the opening, a first rotating shaft is vertically embedded in the inner lower surface of the opening, the device plate is connected into the opening through the first rotating shaft, and a fixing nut for fixing the device plate is arranged on the front face of the test bed body; a second rotating shaft is transversely arranged between the left side surface and the right side surface in the test groove, a second test platform is connected in the test groove through the action of the second rotating shaft, and limiting rotating buttons used for fixing the second test platform are arranged at the left end and the right end of the rear surface in the test groove; the test bench is characterized in that an exhaust hood is arranged on the test bench body, an exhaust pipe is arranged on the exhaust hood, and the upper surface of the test groove is open and is communicated with the exhaust hood.
Furthermore, guide rail grooves are formed in the front ends of the left side face and the right side face in the test groove, upper and lower vertical sliding windows are arranged at the front ends of the left side face and the right side face in the test groove, and sliding plates embedded into the guide rail grooves are arranged on the side faces of the upper and lower vertical sliding windows.
Furthermore, the front lower end of the upper and lower vertical sliding windows is provided with a lifting handle, and the test bed body is internally provided with a placing opening for placing the upper and lower vertical sliding windows.
Furthermore, a first threaded hole is formed in the front face of the test bed body, the fixing nut is spirally arranged in the first threaded hole, and a second threaded hole corresponding to the first threaded hole is formed in the front surface of the device plate.
Furthermore, two power plug sockets for supplying power to equipment needing power supply in the test process are arranged at the left end and the right end of the front face of the test bed body, and the power plug sockets are arranged on the left side and the right side of the test groove.
Furthermore, a water tank is arranged on the first test platform, a sewer pipe is connected to the position of the sewer pipe in the water tank, a faucet is arranged on the upper surface of the first test platform, which is close to the water tank, and a water inlet pipe for supplying water to the faucet is connected to the lower surface of the first test platform.
Further, the equidistance is provided with the multirow and is used for hanging the test tube column of establishing and placing the test tube on the equipment board right flank, just the test tube column upwards slopes to set up, the equidistance is provided with a plurality of drawers of placing that are used for placing experimental container or test equipment on the equipment board right flank.
Further, storage cabinets are hung at the left end and the right end of the lower surface of the second test platform, hooks are arranged on the periphery of the rear surface of each storage cabinet, hanging buckles for hanging the hooks are arranged at the left end and the right end of the lower surface of the second test platform, stand columns are arranged on the periphery of the lower surface of each storage cabinet, and limiting grooves for inserting and limiting the stand columns are formed in the upper surface of the second test platform; l-shaped plates are arranged at the left end and the right end of the lower surface of the second test platform oppositely to form placing grooves, supporting blocks are connected to the lower surfaces of the L-shaped plates, and storage discs used for storing chromatographic columns are embedded between the L-shaped plates at the left end and the right end.
Further, the storage disc comprises a storage plate, the rear end of the left side face and the rear end of the right side face of the storage plate extend to form extension portions matched with the L-shaped plates, a plurality of placing grooves used for placing chromatographic columns are formed in the front face of the storage plate at equal intervals, sleeves are arranged on the lower surface of the placing grooves, a plurality of lifting rods are arranged on the upper surface of the storage plate at equal intervals, handles used for lifting are arranged on the upper surface of the lifting rods, the lower ends of the lifting rods penetrate through the storage plate and extend into the placing grooves, a connecting disc is arranged on the lower end face of each lifting rod in a connected mode, a return spring is sleeved on each lifting rod, the lower end of each return spring is connected with the upper surface of the connecting disc, the upper end of each return spring is connected with the upper surface in the.
The beneficial effects of the utility model reside in that: the utility model adds the first test platform and the second test platform in the device, so that when the chromatographic column test operation is carried out, a user can select the test platform according to the required test content; the equipment board is added in the device, so that the equipment needed by the test can be placed, the protection of each instrument is facilitated, the loss of the instrument when the instrument is replaced is avoided, and a better storage effect is achieved; the upper and lower vertical sliding windows are added in the device, so that a sealing effect on the test tank can be realized, and a sealed environment for a test is facilitated; the first rotating shaft and the second rotating shaft are added in the device, so that the device can realize the rotating and folding functions on the device plate and the second test platform, and the space utilization rate is better increased; the utility model discloses simple structure, the simple operation can deposit required chemical instrumentation in the experiment better, and the function is abundant, can realize the experiment of chromatographic column better.
Drawings
Fig. 1 is a schematic structural diagram of the first state of the present invention.
Fig. 2 is a schematic structural diagram of a second state of the present invention.
Fig. 3 is a schematic structural diagram of the storage cabinet.
Fig. 4 is a schematic structural view of the apparatus plate.
Fig. 5 is a schematic structural diagram of the storage disc.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present invention provides an embodiment: a chromatographic column test bed comprises a test bed body 1, wherein a test groove 2 for carrying out a test is arranged on the front side of the test bed body 1, a placing cavity 11 is arranged in the test bed body 1, the placing cavity 11 is arranged below the test groove 2, a first test platform 12 is arranged in the placing cavity 11, telescopic cylinders 13 for lifting the first test platform 12 are arranged at the left end and the right end of the lower surface of the first test platform 12, insertion grooves 14 are formed in the periphery of the upper surface of the first test platform 12, the insertion grooves 14 are communicated with each other, strip-shaped openings 21 matched with the first test platform 12 are formed in the lower surface of the test groove 2, extension plates 22 corresponding to the insertion grooves 14 are arranged in the strip-shaped openings 21 in a downward extending mode, so that the first test platform 12 can be driven to lift by opening the telescopic cylinders 13, when the first test platform 12 needs to be used, the telescopic cylinder 13 drives the first test platform 12 to be lifted until the extension plate 22 is inserted into the insertion groove 14, and the first test platform 12 is fixed, so that a user can perform a chromatographic column test on the first test platform 12; the opening (not shown in the drawing) has been seted up to the left surface in test groove 2, be provided with the equipment board 3 that is used for placing test equipment in the opening, the vertical lower surface inlays in the opening and is equipped with first pivot 31, equipment board 3 through first pivot 31 connect in the opening, test bench stage 1 openly is provided with the fixation nut 32 that is used for fixing equipment board 3 for the user can manually rotate equipment board 3, equipment board 3 is under the drive of first pivot 31, can rotate the one side of placing equipment to test bench stage 1 in, realizes the operation of drying of a chemical container article, and is difficult for making dirty, rotates to test bench 1 internal back, and accessible fixation nut 32's effect is fixed with equipment board 3, and equipment board 3 can not rotate easily like this, and in the same reason, when the one side of placing equipment with equipment board 3 rotates out, also carries out the fixation through fixation nut 32, the first rotating shaft 31 passes through the middle of the longitudinal axis of the equipment plate 3; a second rotating shaft 23 is transversely arranged between the left side surface and the right side surface in the test groove 2, a second test platform 24 is connected in the test groove 2 through the second rotating shaft 23 in an action mode, and limiting rotating buttons 25 used for fixing the second test platform 24 are arranged at the left end and the right end of the inner rear surface of the test groove 2, so that the second test platform 24 can be fixed on the inner rear surface of the test groove 2 in a folding mode through the action of the limiting rotating buttons 25, the space is saved, when the chromatographic column test device is used, the limiting rotating buttons 25 can be rotated, the second test platform 24 covers the strip-shaped opening 21, and the chromatographic column test operation is carried out; be provided with exhaust hood 15 on the test bench platform body 1, be provided with blast pipe 16 on the exhaust hood 15, test groove 2 upper surface for open and with exhaust hood 15 intercommunication, outside air exhaust equipment is connected to blast pipe 16 for the circulation of air in test groove 2 is realized to the effect of accessible blast pipe 16 and exhaust hood 15, and the peculiar smell that will be in the test discharges, reaches the purpose of purifying toxic gas.
The limit rotation knob 25 of the present invention is a prior art, and can be a 360-degree rotation limiter, but is not limited thereto, and those skilled in the art can clearly understand it, and will not be described in detail herein.
It is worth mentioning that, the utility model provides a test bench stage body 1's inside is hollow structure, has the intercommunication effect with exhaust hood 15, and the circulation of air of being convenient for dries the operation with chemical instrumentation equipment.
Referring to fig. 1, in an embodiment of the present invention, guide rail grooves 4 are formed at front ends of left and right side surfaces in the test groove 2, upper and lower sliding windows 41 are disposed at front ends of left and right side surfaces in the test groove 2, and sliding plates (not shown) embedded in the guide rail grooves 4 are disposed at side surfaces of the upper and lower sliding windows 41. So that the upper and lower sliding windows 41 can slide up and down in the guide rail groove 4 under the action of the sliding plate in the guide rail groove 4 through the sliding plate, the utility model provides an upper and lower sliding windows 41 are the lifting with screens.
Referring to fig. 1 and 2, in an embodiment of the present invention, the upper and lower sliding windows 41 are provided with a lifting handle 42 at the lower end of the front surface, and the test bed body 1 is provided with a placing opening (not shown) for placing the upper and lower sliding windows 41. The upper and lower sliding windows 41 can be opened and closed by a user through the lifting handle 42, and when the user pulls the upper and lower sliding windows 41 upward, the upper and lower sliding windows 41 are fixed in the exhaust hood 15 by the opening function.
Referring to fig. 1 and 4, in an embodiment of the present invention, a first threaded hole (not shown) is formed in the front surface of the test bed body 1, the fixing nut 32 is spirally disposed in the first threaded hole, and a second threaded hole 33 corresponding to the first threaded hole is formed in the front surface of the device board 3. So that the fixing nuts 32 can be screwed into the first and second screw holes 33 to fix the material plates 3 so that the material plates 3 cannot be easily rotated.
Referring to fig. 1 and fig. 2, in an embodiment of the present invention, two power sockets 17 for supplying power to the equipment requiring power supply in the test process are disposed at the left and right ends of the front surface of the test bed body 1, and the power sockets 17 are disposed at the left and right sides of the test tank 2. So that the chemical instrument can be powered through the plug-in socket 17 when the chemical instrument needs to be powered in the chromatographic column test.
Referring to fig. 1 and 2, in an embodiment of the present invention, a water tank 18 is disposed on the first testing platform 12, a sewer pipe 19 is connected to a water outlet of the water tank 18, a faucet 5 is disposed on a position of an upper surface of the first testing platform 12, which is close to the water tank 18, and a water inlet pipe 51 for supplying water to the faucet 5 is connected to a lower surface of the first testing platform 12. So that the user can use the water resource needed by the test by opening the water tap 5 and can discharge the waste liquid through the water tank 18.
As shown in fig. 1, fig. 2 and fig. 4, in an embodiment of the present invention, a plurality of rows of test tube columns 34 for hanging and placing test tubes are equidistantly disposed on the right side of the device board 3, the test tube columns 34 are inclined upward, and a plurality of placing drawers 35 for placing test containers or test equipment are equidistantly disposed on the right side of the device board 3. Make the user hang the test tube and establish and place and dry on test tube column 34, also can place the flask that contains chemical solution etc. and place on placing steamer tray 35, also can realize the effect of drying of chemical container such as flask after the use.
As shown in fig. 1 to fig. 3, in an embodiment of the present invention, a storage cabinet 6 is hung at both left and right ends of a lower surface of the second testing platform 24, hooks 61 are all arranged around a rear surface of the storage cabinet 6, hanging buckles 62 for hanging the hooks 61 are arranged at both left and right ends of a lower surface of the second testing platform 24, upright posts 63 are all arranged around a lower surface of the storage cabinet 6, and a limiting groove (not shown) for inserting and limiting the upright posts 63 is arranged on an upper surface of the second testing platform 24; the left end and the right end of the lower surface of the second test platform 24 are oppositely provided with L-shaped plates 64 to form placing grooves, the lower surfaces of the L-shaped plates 64 are connected with supporting blocks 65, and storage discs 7 for storing chromatographic columns are embedded between the L-shaped plates 64 at the left end and the right end. The storage cabinet 6 can be hung on the lower surface of the second test platform 24 through the matching of the hook 61 and the hanging buckle 62, so that when the first test platform 12 performs a chromatographic column test, equipment and instruments can be better placed, and when the second test platform 24 performs a chromatographic column test, the storage cabinet 6 can be fixed on the upper surface of the second test platform 24 through the matching of the upright column 63 of the storage cabinet 6 and the limiting groove, so that the instrument and equipment can be conveniently placed during the test; and through the cooperation of controlling both ends L shaped plate 64, can form the storage dish 7 that the standing groove will store the chromatographic column and place from last propelling movement to the standing groove down in, the user of being convenient for takes the chromatographic column when experimental.
With reference to fig. 5, in an embodiment of the present invention, the storage tray 7 includes a storage plate 71, the rear ends of the left and right sides of the storage plate 71 are extended with extending portions 72 matching with the L-shaped plate 64, the front of the storage plate 71 is equidistantly provided with a plurality of placing slots 73 for placing chromatography columns, the lower surface of the placing slots 73 is provided with sleeves 74, the upper surface of the storage plate 71 is equidistantly provided with a plurality of lifting rods 75, the upper surface of the lifting rods 75 is provided with handles 76 for lifting, the lower ends of the lifting rods 75 pass through the storage plate 71 and extend into the placing slots 73, the lower ends of the lifting rods 75 are connected with a connecting disc 77, the lifting rods 75 are sleeved with a return spring 78, the lower ends of the return springs 78 are connected with the upper surface of the connecting disc 77, the upper ends of the return springs 78 are connected with the upper surface of the placing slots 73, the lower surface of the connecting disc 77 is provided with a limiting cylinder 79. The staff is enabled to manually pull up the lifting rod 75, so that the limiting cylinder 79 is pulled up, the chromatographic column can be placed into the sleeve 74, the handle 76 is loosened, the limiting cylinder 79 can move downwards under the action of the reset spring 78 to be embedded into the limiting cylinder 79 for fixing, and after the storage disc 7 is filled with the chromatographic column, the storage disc 7 can be pushed into the L-shaped plate 64 for fixing and clamping.
The utility model discloses a theory of operation: when the device is used, a user can select a test platform according to the requirement, when the water resource is needed in the required test, the telescopic cylinder is started, the telescopic cylinder drives the first test platform to rise until the extension plate is inserted into the insertion groove to be fixed, so that the user can use the first test platform to perform a chromatographic column test, after the test is completed, the user can place a test instrument on the device plate, after the test is completed, the user can rotate the device plate manually to rotate one surface of the device plate on which the device is placed into the test bed body under the action of the first rotating shaft, then the device plate is fixed through the fixing nut to sequentially screw the first threaded hole and the second threaded hole, and when the chromatographic column is required to be sealed in the process of testing by the user, the user pulls the upper lifting window and the lower lifting window down through the lifting handle, so that a relative sealed space is formed, and the test can be better performed; when the water resource need not to be used in required experiment, the rotatory spacing knob of user's accessible for the second test platform can be covered on the bar opening, thereby user's accessible second test platform is experimental.
The utility model discloses well telescopic cylinder, plug in electric socket and from top to bottom the circuit principle and the structure of vertical sliding window are prior art, and the technical personnel in the field have been clearly understood, do not explain in detail here, just the utility model protects the structural feature of chromatographic column test bench.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims (9)

1. A chromatographic column test bed is characterized in that: the test bed comprises a test bed body, wherein a test groove for testing is formed in the front face of the test bed body, a placing cavity is formed in the test bed body and is arranged below the test groove, a first test platform is arranged in the placing cavity, telescopic cylinders for lifting the first test platform are arranged at the left end and the right end of the lower surface of the first test platform, insertion grooves are formed in the periphery of the upper surface of the first test platform and are communicated with each other, a strip-shaped opening matched with the first test platform is formed in the lower surface of the test groove, and extension plates corresponding to the insertion grooves are arranged in the periphery of the strip-shaped opening in a downward extending mode; an opening is formed in the left side face in the test groove, a device plate for placing test devices is arranged in the opening, a first rotating shaft is vertically embedded in the inner lower surface of the opening, the device plate is connected into the opening through the first rotating shaft, and a fixing nut for fixing the device plate is arranged on the front face of the test bed body; a second rotating shaft is transversely arranged between the left side surface and the right side surface in the test groove, a second test platform is connected in the test groove through the action of the second rotating shaft, and limiting rotating buttons used for fixing the second test platform are arranged at the left end and the right end of the rear surface in the test groove; the test bench is characterized in that an exhaust hood is arranged on the test bench body, an exhaust pipe is arranged on the exhaust hood, and the upper surface of the test groove is open and is communicated with the exhaust hood.
2. A chromatography column test stand according to claim 1, characterized in that: guide rail grooves are formed in the front ends of the left side face and the right side face in the test groove, upper and lower vertical sliding windows are arranged at the front ends of the left side face and the right side face in the test groove, and sliding plates embedded into the guide rail grooves are arranged on the side faces of the upper and lower vertical sliding windows.
3. A chromatography column test stand according to claim 2, characterized in that: the lower end of the front surface of the upper and lower vertical sliding windows is provided with a lifting handle, and the test bed body is internally provided with a placing opening for placing the upper and lower vertical sliding windows.
4. A chromatography column test stand according to claim 1, characterized in that: the front surface of the test bed body is provided with a first threaded hole, the fixing nut is spirally arranged in the first threaded hole, and the front surface of the device plate is provided with a second threaded hole corresponding to the first threaded hole.
5. A chromatography column test stand according to claim 1, characterized in that: two plug-in sockets for supplying power to equipment needing power supply in the test process are arranged at the left end and the right end of the front face of the test bed body, and the plug-in sockets are arranged on the left side and the right side of the test groove.
6. A chromatography column test stand according to claim 1, characterized in that: the water tank is arranged on the first test platform, a sewer pipe is connected to the sewer opening of the water tank, a faucet is arranged on the upper surface of the first test platform, close to the water tank, and a water inlet pipe for supplying water to the faucet is connected to the lower surface of the first test platform.
7. A chromatography column test stand according to claim 1, characterized in that: the equipment board right flank equidistance is provided with the multirow and is used for hanging the test tube column of establishing and placing the test tube, just the test tube column upwards inclines upward and sets up, the equipment board right flank equidistance is provided with a plurality of drawers of placing that are used for placing experimental container or test equipment.
8. A chromatography column test stand according to claim 1, characterized in that: storage cabinets are hung at the left end and the right end of the lower surface of the second test platform, hooks are arranged on the periphery of the rear surface of each storage cabinet, hanging buckles for hanging the hooks are arranged at the left end and the right end of the lower surface of the second test platform, stand columns are arranged on the periphery of the lower surface of each storage cabinet, and limiting grooves for inserting and limiting the stand columns are formed in the upper surface of the second test platform; l-shaped plates are arranged at the left end and the right end of the lower surface of the second test platform oppositely to form placing grooves, supporting blocks are connected to the lower surfaces of the L-shaped plates, and storage discs used for storing chromatographic columns are embedded between the L-shaped plates at the left end and the right end.
9. A chromatography column test stand according to claim 8, wherein: the storage disc comprises a storage plate, the rear end of the left side and the rear end of the right side of the storage plate are provided with extending portions matched with the L-shaped plates in an extending mode, a plurality of placing grooves used for placing chromatographic columns are formed in the front of the storage plate at equal intervals, sleeves are arranged on the lower surfaces of the placing grooves, a plurality of lifting rods are arranged on the upper surface of the storage plate at equal intervals, handles used for lifting are arranged on the upper surface of each lifting rod, the lower ends of the lifting rods penetrate through the storage plate and extend into the placing grooves, a connecting disc is arranged on the lower end face of each lifting rod in a connected mode, a reset spring is sleeved on each lifting rod, the lower ends of the reset springs are connected with the upper surface of the connecting disc, the upper ends of the reset springs are connected with the upper.
CN202020133785.0U 2020-01-20 2020-01-20 Chromatographic column test bench Expired - Fee Related CN211586707U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020133785.0U CN211586707U (en) 2020-01-20 2020-01-20 Chromatographic column test bench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020133785.0U CN211586707U (en) 2020-01-20 2020-01-20 Chromatographic column test bench

Publications (1)

Publication Number Publication Date
CN211586707U true CN211586707U (en) 2020-09-29

Family

ID=72580270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020133785.0U Expired - Fee Related CN211586707U (en) 2020-01-20 2020-01-20 Chromatographic column test bench

Country Status (1)

Country Link
CN (1) CN211586707U (en)

Similar Documents

Publication Publication Date Title
CN208194462U (en) A kind of hospital laboratory rack for test tube
CN211586707U (en) Chromatographic column test bench
CN206911397U (en) A kind of Multifunctional metal-framed platform of physics teaching experiment
CN207546583U (en) A kind of portable physical experiment rack for test tube
CN212807824U (en) Solid phase extraction instrument
CN209656680U (en) A kind of water body water sample pH value detection device
CN209061170U (en) A kind of movable hanging frame of medical use liquid transfer gun head
CN208213236U (en) A kind of experimental bench for chemical engineering
CN209425395U (en) A kind of liftable type clean bench
CN208032630U (en) A kind of vessel cabinet for vinegar detection
CN207423614U (en) A kind of oil smoke detects sampling apparatus
CN215894112U (en) Portable liquid sampler
CN207025382U (en) Combined type laboratory apparatus frame
CN219956935U (en) Sterile sampling device
CN216349739U (en) Sampling device for geothermal water quality monitoring
CN217403904U (en) Improved generation activation adsorption tube device
CN217278291U (en) Water quality analyzer with adjusting function
CN218954936U (en) Movable kitchen range
CN220969161U (en) Liquid extraction device
CN218331537U (en) Portable water quality detector
CN215963670U (en) Sample rack for chemical analysis
CN111982598B (en) Transformer tap switch oil chamber sampling device and sampling method
CN217793894U (en) Free combination vertical disinfection cabinet
CN220780424U (en) Portable on-spot detection experiment workstation device
CN211755229U (en) Test tube placement rack for medical examination

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200929

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