CN217645894U - Water quality testing solid phase extraction device - Google Patents
Water quality testing solid phase extraction device Download PDFInfo
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- CN217645894U CN217645894U CN202122329774.7U CN202122329774U CN217645894U CN 217645894 U CN217645894 U CN 217645894U CN 202122329774 U CN202122329774 U CN 202122329774U CN 217645894 U CN217645894 U CN 217645894U
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Abstract
The application relates to a solid phase extraction device for water quality detection, which is applied to the field of environmental detection and comprises an extraction box body and a vacuum pump communicated with the extraction box body, wherein the top of the extraction box body is provided with a box cover, the box cover is divided into a closed area and an extraction area for placing an extraction unit, and the inner cavity of the extraction box body is divided into a waste liquid area and a test tube area for placing a test tube for inserting the extraction unit; the extraction box body is provided with a rotating mechanism, the box cover rotates through the rotating mechanism to exchange the position of the extraction area and the closed area, and meanwhile, the height of the box cover is adjusted through the rotating mechanism. This application has the extraction liquid and is difficult for receiving the pollution, therefore the water sample detects the effect that the precision is high.
Description
Technical Field
The application relates to the technical field of environmental detection, in particular to a water quality detection solid-phase extraction device.
Background
The operation of solid phase extraction comprises four steps of activation, loading, leaching and elution. The solid phase extraction instrument is an experimental instrument which utilizes a solid adsorbent to adsorb a target compound in a liquid sample, separates the target compound from a matrix and an interfering compound of the sample, then uses eluent for elution or heating desorption, and finally separates and enriches the target compound, and can be applied to various food safety detection, agricultural product residue monitoring, medicine and health, environmental protection, commodity inspection, tap water and chemical production laboratories.
Chinese patent No. CN212731142U discloses a high-throughput solid-phase extraction system applied to water sample detection, which comprises a vacuum pump and an extraction apparatus body connected in sequence, wherein an air inlet of the vacuum pump is connected with an air outlet of a transition bottle through a pipeline, the extraction apparatus body comprises an extraction unit, a test tube limiting plate, an extraction box, a box cover and at least two electric telescopic rods, a water inlet of the transition bottle extends to the bottom inside the extraction box through a pipeline, each electric telescopic rod is vertically arranged inside the extraction box, the test tube limiting plate is horizontally arranged on an extending end of the electric telescopic rod, a plurality of through holes for test tubes to pass through are arranged on the test tube limiting plate, a plurality of extraction units are arranged on the top of the box cover, and one end of each extraction unit extends into the extraction box and corresponds to the through holes one by one; the below of test tube limiting plate is connected with supplementary locating plate through connecting screw, and connecting screw's one end is passed the test tube limiting plate and is fixed through the nut.
In view of the above related technologies, the inventor believes that the four steps of activation, sample loading, leaching and elution are collectively operated in the solid phase extraction system, and only the first three steps actually generate waste liquid, the fourth step does not generate waste liquid, and the extract liquid generated in the fourth step is directly extracted for measurement, so that the waste liquid generated in the first three steps in the solid phase extraction system is discharged into a test tube, the extract liquid generated in the fourth step is polluted, and the final water sample detection precision is affected.
SUMMERY OF THE UTILITY MODEL
In order to improve the waste liquid that the first three step produced and to cause the pollution to the extract that the fourth step produced, influence the problem of final water sample detection's precision, this application provides a water quality testing solid phase extraction device.
The application provides a water quality testing solid phase extraction device adopts following technical scheme:
a solid phase extraction device for water quality detection comprises an extraction box body and a vacuum pump communicated with the extraction box body, wherein the top of the extraction box body is provided with a box cover, the box cover is divided into a closed area and an extraction area for placing an extraction unit, and the inner cavity of the extraction box body is divided into a waste liquid area and a test tube area for placing a test tube for inserting the extraction unit; the extraction box body is provided with a rotating mechanism, the box cover rotates through the rotating mechanism to interchange the positions of the extraction area and the closed area, and meanwhile, the box cover is adjusted in height through the rotating mechanism.
By adopting the technical scheme, the interior of the extraction box body is divided into the waste liquid area and the test tube area, so that the step of dismounting and replacing the test tube is omitted, and the extraction efficiency is favorably improved; when the device is used, the box cover is rotated through the rotating mechanism, the extraction area can be communicated with the waste liquid area or the test tube area according to requirements, the elution step in solid phase extraction and the first three steps which can generate waste liquid can be separated, namely the waste liquid generated in the first three steps is directly discharged into the waste liquid area, and the extraction liquid generated in the elution step is discharged into the test tube, so that the possibility of pollution of the extraction liquid by the waste liquid is reduced; the extraction liquid generated in the elution step is directly injected into a clean test tube and extracted for determination, so that the detection precision of the water sample can be effectively improved.
Optionally, the rotating mechanism includes a support plate disposed inside the extraction box body, a telescopic rod is disposed between the support plate and the box cover, one end of the telescopic rod is fixedly connected to the support plate, and the other end of the telescopic rod is rotatably connected to the box cover; a pushing spring is sleeved on the outer side of the telescopic rod, one end of the pushing spring abuts against the supporting plate, and the other end of the pushing spring abuts against the box cover; and a fixing component is also arranged between the box cover and the extraction box body.
By adopting the technical scheme, one end of the telescopic rod is rotatably connected to the box cover, the other end of the telescopic rod is fixedly connected to the supporting plate in the extraction box body, and the supporting plate and the telescopic rod are used as carriers of the box cover; the top pushes away the spring and can produce holding power to the case lid, when not being fixed in the extraction box with the case lid through fixed subassembly on, the top pushes away the case lid upwards to leave operating space between case lid and extraction box, in order to conveniently put into or take out the test tube, and then promote the efficiency of solid phase extraction.
Optionally, the fixed assembly comprises a clamping hook arranged on the inner wall of the extraction box body, a shifting rod penetrates through the side wall of the extraction box body and is hinged to the side wall of the extraction box body, the clamping hook is connected with the shifting rod, a buckle is arranged at the bottom of the box cover, and the box cover is fixed on the extraction box body through the clamping hook and the buckle in a clamping mode.
By adopting the technical scheme, after the box cover is pressed down to be attached to the extraction box body, the clamping hook and the clamping buckle are clamped with each other to fix the box cover on the top of the extraction box body, so that the fixing stability between the box cover and the extraction box body is improved; the side wall of the extraction box body is provided with a shifting lever in a penetrating mode, the shifting lever is hinged to the side wall of the extraction box body, the clamping hook is connected with the shifting lever, the shifting lever is shifted to enable the clamping hook to be separated from the buckle, and fixing between the box cover and the extraction box body is conveniently released.
Optionally, a tension spring is arranged above the deflector rod, and the tension spring is connected between the deflector rod and the outer wall of the extraction box body.
Through adopting above-mentioned technical scheme, press the case lid and make behind trip and the buckle block, a continuous ascending pulling force is exerted to the driving lever to taut spring, and the trip of driving lever opposite side exerts a continuous decurrent supporting power to the buckle under lever principle effect, and the vacuum pump operation produces the vibration and causes the condition that trip and buckle break away from when being favorable to reducing the extraction.
Optionally, a sealing gasket is arranged on the top end wall of the extraction box body.
Through adopting above-mentioned technical scheme, use fixed subassembly with the case lid be fixed in the extraction box on the back, the case lid will seal up the pad and support tightly on the extraction box, form sealedly in case lid and extraction box junction, can effectively form the air pressure difference after the vacuum pump starts, and then promote the efficiency of solid phase extraction.
Optionally, the waste liquid district is equipped with the waste liquid box, set up the confession on the lateral wall of extraction box the mouth of getting that the waste liquid box put into and take out is put, just the waste liquid box orientation be equipped with the handle on getting the lateral wall of putting the mouth.
By adopting the technical scheme, the waste liquid box can be put in or taken out through the taking and placing opening on the extraction box body, so that the time wasted by frequently treating waste liquid when the amount of water samples to be detected is large can be effectively reduced; be equipped with the handle on the waste liquid box lateral wall, conveniently snatch the operation to the waste liquid box.
Optionally, a sealing ring is arranged on the inner wall of the taking and placing opening in an encircling manner, and the sealing ring abuts against the outer wall of the waste liquid box.
Through adopting above-mentioned technical scheme, put into the extraction box with the waste liquid box after, the sealing washer forms sealedly between the outer wall of waste liquid box and the inner wall of getting and putting the mouth, reduces the outer wall of waste liquid box and gets the possibility that produces the gap between the inner wall of putting the mouth, and then promotes the gas tightness of extraction box.
Optionally, the bottom of the waste liquid box is connected with a slide rail, and the bottom of the extraction box body is provided with a fixed rail for the slide rail to slide.
By adopting the technical scheme, when the waste liquid box is placed into the taking and placing port, the waste liquid box can be connected into the fixed rail at the bottom of the extraction box body through the slide rail at the bottom and slide into the extraction box body, so that on one hand, the slide rail and the fixed rail limit the waste liquid box, and the condition that the waste liquid collection is influenced due to deviation generated at the placing position of the waste liquid box is reduced; on the other hand slide rail and fixed rail effectively reduce the frictional force between waste liquid box and extraction box, reduce the possibility that waste liquid box damaged because of the friction.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the inner cavity of the extraction box body is divided into a waste liquid area and a test tube area, waste liquid generated in the first three steps of solid phase extraction is directly discharged into the waste liquid area, and extraction liquid generated in the elution step is discharged into the test tube, so that the pollution of the waste liquid to the extraction liquid is reduced;
2. through the matching of the rotating mechanism and the fixing component, the box cover is convenient to rotate, and the box cover and the extraction box body are convenient to fix or separate, so that the solid-phase extraction operation is convenient, and the extraction efficiency is improved;
3. set up the waste liquid box in the waste liquid district, waste liquid box accessible is got and is put the mouth and put into or take out the extraction box, is convenient for handle a large amount of waste liquids and shortens the processing waste liquid required time, is favorable to handling the more condition of waiting to examine the water sample volume.
Drawings
FIG. 1 is a schematic view of a solid phase extraction apparatus for monitoring water quality in an embodiment of the present application.
FIG. 2 is a sectional view of a solid phase extraction apparatus for monitoring water quality in an embodiment of the present application.
Reference numerals: 1. an extraction box body; 11. a waste liquid zone; 12. a test tube area; 121. a test tube; 13. a gasket; 14. a taking and placing port; 141. a seal ring; 15. a fixed rail; 2. a vacuum pump; 3. a box cover; 31. a closed zone; 32. an extraction zone; 321. an extraction unit; 4. a rotation mechanism; 41. a support plate; 42. a telescopic rod; 43. a pushing spring; 5. a fixing component; 51. a hook is clamped; 52. a deflector rod; 53. buckling; 6. tensioning the spring; 7. a waste liquid box; 71. a handle; 72. a slide rail.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a water quality testing solid phase extraction device. Referring to fig. 1 and 2, a water quality detection solid phase extraction device comprises an extraction box body 1 and a vacuum pump 2, wherein the air inlet end of the vacuum pump 2 is communicated with the side wall of the extraction box body 1. The top of the extraction box body 1 is provided with a box cover 3, and the box cover 3 seals the top of the extraction box body 1. The case lid 3 is divided into closed area 31 and the extraction district 32 that is used for placing the extraction unit 321, and the inner chamber of extraction box 1 is divided into waste liquid district 11 and the test tube district 12 that is used for placing test tube 121, and the extraction district 32 corresponds the setting with test tube district 12 for the extraction unit 321 can insert in the test tube 121. Thus, when the vacuum pump 2 is operated, a pressure difference is formed between the inside and the outside of the extraction tank 1, and thus the extraction unit 321 can perform a solid phase extraction operation.
Referring to fig. 2, be equipped with rotary mechanism 4 on the extraction box 1, rotary mechanism 4 is including setting up in the inside backup pad 41 and the telescopic link 42 of extraction box 1, backup pad 41 is the level setting and is located extraction box 1 middle part, the both ends fixed connection of backup pad 41 is on the inner wall of extraction box 1, telescopic link 42 is vertical setting and is located backup pad 41 middle part, the lower extreme fixed connection of telescopic link 42 is on backup pad 41, the upper end and the case lid 3 of telescopic link 42 rotate and are connected, therefore, support case lid 3 through backup pad 41 and telescopic link 42, and make case lid 3 can rotate at the top of extraction box 1. In addition, the outer side of the telescopic rod 42 is sleeved with a pushing spring 43, one end of the pushing spring 43 is fixedly connected to the supporting plate 41, the other end of the pushing spring 43 abuts against the case cover 3, and the case cover 3 is always pushed upwards under the elastic force action of the pushing spring 43, so that the case cover 3 is separated from the extraction case body 1 to form an operation space for taking and placing the test tube 121, and the convenience of solid-phase extraction operation is improved. In addition, a fixing component 5 is also arranged between the box cover 3 and the extraction box body 1.
Referring to fig. 2, in operation, firstly, the closed area 31 on the box cover 3 is aligned with the test tube area 12 of the extraction box body 1, the extraction area 32 on the box cover 3 is aligned with the waste liquid area 11 of the extraction box body 1, at this time, the first three steps of activation, sample loading and rinsing of the solid phase extraction operation are carried out, and waste liquid generated in the first three steps is directly discharged into the waste liquid area 11; when the fourth elution step is performed, the person removes the fixing component 5, and then pushes the case cover 3 upwards under the elastic force of the pushing spring 43, so that the case cover 3 is separated from the extraction case body 1, then rotates the case cover 3 to exchange the positions of the closed region 31 and the extraction region 32, so that the closed region 31 is aligned with the waste liquid region 11 of the extraction case body 1, the extraction region 32 is aligned with the test tube region 12 of the extraction case body 1, and then moves the case cover 3 downwards, so that the case cover 3 covers the extraction case body 1, and therefore the extraction unit 321 of the extraction region 32 can be inserted into the test tube 121 of the test tube region 12, and finally the fixing component 5 is installed, and the case cover 3 is fixed on the top of the extraction case body 1.
The elution step in the solid-phase extraction and the first three steps which can generate waste liquid can be separated in the steps, namely, the extraction liquid generated in the elution step is discharged into the test tube 121, so that the possibility of pollution of the waste liquid to the extraction liquid is reduced, and the precision of water sample detection can be effectively improved.
Referring to fig. 2, the fixing assembly 5 includes a buckle 53 fixedly connected to the bottom of the case cover 3 and a hook 51 disposed on the inner wall of the extraction case 1, the buckle 53 is J-shaped, the hook 51 is inverted J-shaped, and the hook 51 and the buckle 53 can be fastened to each other to fix the case cover 3 on the extraction case 1. The hook 51 is integrally connected with a shift lever 52, the shift lever 52 penetrates through the side wall of the extraction box 1 and is hinged with the side wall of the extraction box 1, and therefore, the hook 51 and the buckle 53 can be buckled or the hook 51 and the buckle 53 can be separated by shifting the shift lever 52. A tension spring 6 is arranged above one end of the shifting lever 52 extending to the outer side of the extraction box body 1, the tension spring 6 is connected between the shifting lever 52 and the outer wall of the extraction box body 1, when the hook 51 and the buckle 53 are mutually buckled, the tension spring 6 applies continuous upward tension to the shifting lever 52, so that the hook 51 is driven to apply continuous downward abutting force to the buckle 53, the buckling firmness of the hook 51 and the buckle 53 is improved, and the box cover 3 is stably fixed on the extraction box body 1; and when the shifting lever 52 drives the hook 51 to separate from the buckle 53, the person only needs to press the shifting lever 52 downwards against the tension of the tension spring 6.
Referring to fig. 2, when the case cover 3 is tightly fixed to the extraction case 1 by the mutual fastening of the hook 51 and the buckle 53, in order to improve the air tightness of the inner cavity of the extraction case 1, the top end wall of the extraction case 1 is provided with the sealing gasket 13, so that the case cover 3 covers the extraction case 1, and the case cover 3 presses the sealing gasket 13 onto the extraction case 1 to form a seal between the case cover 3 and the extraction case 1, thereby reducing the vacuum leakage inside the extraction case 1. And the arranged sealing gasket 13 also forms buffer protection on the contact part between the box cover 3 and the extraction box body 1.
Referring to fig. 2, the waste liquid area 11 is provided with the waste liquid box 7, the waste liquid box 7 is a rectangular parallelepiped box with an open top, the bottom of the waste liquid box 7 is provided with a slide rail 72, and the bottom wall of the extraction box body 1 is provided with a fixed rail 15 matched with the slide rail 72, so that the waste liquid box 7 can slide along a specified direction in the waste liquid area 11. Offer on the lateral wall of extraction box 1 and be the mouth 14 of getting of rectangle, waste liquid box 7 can put into or take out extraction box 1 through getting to put a mouth 14, and installs handle 71 on waste liquid box 7 orientation gets the lateral wall of putting a mouth 14 one side to in personnel snatch waste liquid box 7, carry out the push-and-pull operation to waste liquid box 7, thereby be convenient for handle the waste liquid fast in order to promote extraction efficiency. In addition, a sealing ring 141 is provided along the periphery on the inner wall of the access opening 14, and after the waste liquid box 7 is pushed into the extraction box body 1, the sealing ring 141 forms a seal between the outer wall of the waste liquid box 7 and the inner wall of the access opening 14, thereby improving the air tightness of the extraction box body 1.
The implementation principle of a water quality testing solid phase extraction device of the embodiment of the application is as follows: during operation, firstly, a closed area 31 on the box cover 3 is aligned to a test tube area 12 of the extraction box body 1, an extraction area 32 on the box cover 3 is aligned to a waste liquid area 11 of the extraction box body 1, at the moment, the first three steps of activation, sample loading and leaching of solid phase extraction are carried out, and waste liquid generated in the first three steps is directly discharged into the waste liquid area 11; when the fourth elution step is performed, the person removes the fixing component 5, then pushes the case cover 3 upwards under the elastic force of the pushing spring 43, so that the case cover 3 is separated from the extraction case 1, then rotates the case cover 3 to exchange the positions of the closed region 31 and the extraction region 32, so that the closed region 31 is aligned with the waste liquid region 11 of the extraction case 1, and the extraction region 32 is aligned with the test tube region 12 of the extraction case 1, and then moves the case cover 3 downwards, so that the case cover 3 covers the extraction case 1, and thus the extraction unit 321 of the extraction region 32 can be inserted into the test tube 121 of the test tube region 12, and finally installs the fixing component 5, and fixes the case cover 3 on the top of the extraction case 1.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a water quality testing solid phase extraction device, includes extraction box (1) and vacuum pump (2) with extraction box (1) intercommunication, its characterized in that: the top of the extraction box body (1) is provided with a box cover (3), the box cover (3) is divided into a closed area (31) and an extraction area (32) for placing an extraction unit (321), and the inner cavity of the extraction box body (1) is divided into a waste liquid area (11) and a test tube area (12) for placing a test tube (121) for inserting the extraction unit (321);
be equipped with rotary mechanism (4) on extraction box (1), case lid (3) pass through rotary mechanism (4) rotate will extraction district (32) with the position interchange of confined area (31), simultaneously case lid (3) pass through rotary mechanism (4) carry out height control.
2. The water quality detection solid phase extraction device according to claim 1, characterized in that: the rotating mechanism (4) comprises a supporting plate (41) arranged inside the extraction box body (1), an expansion link (42) is arranged between the supporting plate (41) and the box cover (3), one end of the expansion link (42) is fixedly connected to the supporting plate (41), and the other end of the expansion link (42) is rotatably connected to the box cover (3); a pushing spring (43) is sleeved on the outer side of the telescopic rod (42), one end of the pushing spring (43) abuts against the supporting plate (41), and the other end of the pushing spring (43) abuts against the box cover (3); and a fixing component (5) is also arranged between the box cover (3) and the extraction box body (1).
3. The water quality detection solid phase extraction device according to claim 2, characterized in that: fixed subassembly (5) are including setting up trip (51) on extraction box (1) inner wall, run through on the lateral wall of extraction box (1) and be equipped with driving lever (52), just driving lever (52) articulate in on the lateral wall of extraction box (1), trip (51) with driving lever (52) are connected, the bottom of case lid (3) is equipped with buckle (53), case lid (3) are passed through trip (51) with buckle (53) block is fixed in on the extraction box (1).
4. A water quality detection solid phase extraction apparatus according to claim 3, wherein: a tension spring (6) is arranged above the shifting lever (52), and the tension spring (6) is connected between the shifting lever (52) and the outer wall of the extraction box body (1).
5. The water quality detection solid phase extraction device according to claim 1, characterized in that: and a sealing gasket (13) is arranged on the top end wall of the extraction box body (1).
6. The water quality detection solid phase extraction device according to claim 1, characterized in that: waste liquid district (11) are equipped with waste liquid box (7), seted up the confession on the lateral wall of extraction box (1) waste liquid box (7) are put into and are taken out get put mouthful (14), just waste liquid box (7) orientation get and be equipped with handle (71) on the lateral wall of putting mouthful (14).
7. The water quality detection solid phase extraction device according to claim 6, characterized in that: a sealing ring (141) is arranged on the inner wall of the taking and placing opening (14) in an encircling mode, and the sealing ring (141) abuts against the outer wall of the waste liquid box (7).
8. The water quality detection solid phase extraction device according to claim 6, characterized in that: the bottom of the waste liquid box (7) is connected with a sliding rail (72), and the bottom of the extraction box body (1) is provided with a fixed rail (15) for the sliding of the sliding rail (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329774.7U CN217645894U (en) | 2021-09-25 | 2021-09-25 | Water quality testing solid phase extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329774.7U CN217645894U (en) | 2021-09-25 | 2021-09-25 | Water quality testing solid phase extraction device |
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| Publication Number | Publication Date |
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| CN217645894U true CN217645894U (en) | 2022-10-25 |
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| CN202122329774.7U Active CN217645894U (en) | 2021-09-25 | 2021-09-25 | Water quality testing solid phase extraction device |
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2021
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