CN221426562U - High-efficiency sample injection mechanism - Google Patents
High-efficiency sample injection mechanism Download PDFInfo
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- CN221426562U CN221426562U CN202322981961.2U CN202322981961U CN221426562U CN 221426562 U CN221426562 U CN 221426562U CN 202322981961 U CN202322981961 U CN 202322981961U CN 221426562 U CN221426562 U CN 221426562U
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- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims description 32
- 238000005070 sampling Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 29
- 239000000523 sample Substances 0.000 description 20
- 238000001514 detection method Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a high-efficiency sample injection mechanism in the field of chromatograph sample injection devices, which comprises a bottom plate, a shell and a support frame, wherein the shell is fixedly connected to the middle part of the top of the bottom plate, the support frame is fixedly connected to the middle part of the rear part of the top of the bottom plate, and the middle part of the bottom of an inner cavity of the shell is fixedly connected with a stepping motor.
Description
Technical Field
The utility model relates to the technical field of chromatograph sampling devices, in particular to a high-efficiency sampling mechanism.
Background
The high performance liquid chromatograph is an instrument and equipment which uses the principle of high performance liquid chromatograph and is mainly used for analyzing organic compounds with high boiling point, difficult volatilization, unstable heating and large molecular weight, the mobile phase in the liquid reservoir is pumped into the system by a high pressure pump, the sample solution enters the mobile phase through a sample injector, the mobile phase is loaded into a chromatographic column and separated into single components which flow out of the column in sequence, and when the single components pass through a detector, the concentration of the sample is converted into an electric signal and is transmitted to a recorder.
The existing chromatograph sample injection device mostly moves reagent bottles out of the sample injection frame one by one through manpower after detection is finished, a great deal of manpower and time are consumed during transfer, the transfer efficiency is low, the detection efficiency is low, and a high-efficiency sample injection mechanism is provided for the purpose.
Disclosure of utility model
The utility model aims to provide a high-efficiency sample injection mechanism, which solves the problems that in the prior art, the sample injection device of the chromatograph at present mainly removes reagent bottles into a sample injection frame one by manpower after detection is finished, and when the sample injection device is transferred, a great deal of manpower and time are consumed, the transfer efficiency is lower, and the detection efficiency is lower.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high efficiency sample introduction mechanism, includes bottom plate, shell and support frame, shell fixedly connected in bottom plate top middle part, support frame fixedly connected in bottom plate top rear portion middle part, shell inner chamber bottom middle part fixedly connected with step motor, step motor output shaft end fixedly connected with carousel, the standing groove has evenly been seted up in carousel top outside, the inboard top middle part fixedly connected with electric telescopic handle of support frame, electric telescopic handle's output shaft end fixedly connected with connecting plate, connecting plate top front side middle part runs through fixedly connected with sample needle, support frame top middle part fixedly connected with pump machine, pump machine entrance point fixedly connected with feed liquor pipe, pump machine exit end fixedly connected with drain pipe, carousel top swing joint takes the mechanism, take the mechanism and include locating hole, reference column, plectrum, handle, lofting hole, spout, extrusion spring, extrusion rod and splint, the inside sliding connection has the reference column, plectrum top fixedly connected with plectrum, top middle part fixedly connected with handle, extrusion spring opposite side fixedly connected with side opposite side lateral side, extrusion spring fixedly connected with opposite side lateral side, extrusion rod fixedly connected with opposite side extrusion rod.
As a further description of the above technical solution:
The stepping motor, the electric telescopic rod and the input end of the pump are electrically connected with the output end of an external power supply, and the inlet end of the liquid inlet pipe is fixedly connected with the top of the sampling needle.
As a further description of the above technical solution:
The diameter of the positioning hole is equal to that of the positioning column, and the top of the clamping plate is fixedly connected with an arc-shaped sloping plate.
As a further description of the above technical solution:
the extrusion rod is in sliding connection with the inside of the chute, and the outer side wall of the extrusion rod is attached to the inner side wall of the chute.
As a further description of the above technical solution:
The utility model discloses a connecting plate, including connecting plate front side bottom fixedly connected with hold-down mechanism, hold-down mechanism includes slide bar, baffle, clamp plate, reset spring and through-hole, the slide bar is run through at connecting plate front side left and right sides portion, slide bar top fixedly connected with baffle, slide bar bottom fixedly connected with clamp plate, reset spring has been cup jointed in the slide bar outside, the through-hole has been run through in clamp plate top middle part.
As a further description of the above technical solution:
The top and the bottom of the reset spring are fixedly connected with the bottom of the connecting plate and the top of the pressing plate respectively, and the sampling needle is positioned at the inner side of the through hole.
Compared with the prior art, the utility model has the beneficial effects that:
1. This high efficiency advances kind mechanism, in the space stage that detects, place reagent bottle inside the lofting hole, make its extrusion arc swash plate, make splint separate, make the extrusion pole slide inside the spout, extrude extrusion spring, make extrusion spring deformation, through extrusion spring's reaction force, make splint fixed to reagent pipe centre gripping, after detecting, the pulling handle is dismantled the plectane on the carousel, make reagent bottle whole dismantlement on the plectane, later place the plectane of installing reagent bottle on the carousel, accomplish the change, thereby avoid shifting out the reagent bottle one by one, save time laborsaving, promote transfer efficiency, thereby promote whole detection efficiency.
2. This high efficiency advances kind mechanism, when the sample, drives the connecting plate through electric telescopic handle and descends for the clamp plate descends, makes the clamp plate at first contact with the reagent bottle, continues to make the connecting plate descend, makes the slide bar slide, extrudes reset spring, makes the clamp plate compress tightly the reagent bottle, thereby ensures reagent bottle's stability when the sample, prevents that the reagent bottle from rocking and makes the sampling needle damage.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high-efficiency sample injection mechanism according to the present utility model;
FIG. 2 is a schematic diagram of a mounting structure of a stepper motor of a high-efficiency sample feeding mechanism according to the present utility model;
FIG. 3 is a schematic diagram of a mechanism for taking a sample injection mechanism with high efficiency according to the present utility model;
fig. 4 is a schematic structural diagram of a compressing mechanism of the high-efficiency sample feeding mechanism provided by the utility model.
In the figure: 100. a bottom plate; 200. a housing; 210. a stepping motor; 220. a turntable; 230. a placement groove; 300. a support frame; 310. an electric telescopic rod; 320. a connecting plate; 330. a sampling needle; 340. a pump machine; 350. a liquid inlet pipe; 360. a liquid outlet pipe; 400. a picking mechanism; 410. positioning holes; 420. positioning columns; 430. a circular plate; 440. a handle; 450. a lofting hole; 460. a chute; 470. extruding a spring; 480. an extrusion rod; 490. a clamping plate; 500. a compressing mechanism; 510. a slide bar; 520. a baffle; 530. a pressing plate; 540. a return spring; 550. and a through hole.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model provides a high-efficiency sample injection mechanism, which avoids moving out reagent bottles one by one, saves time and labor, improves the transfer efficiency, and accordingly improves the overall detection efficiency, and referring to fig. 1-4, the high-efficiency sample injection mechanism comprises a bottom plate 100, a shell 200 and a supporting frame 300;
Referring again to fig. 1, the base plate 100 is used to mount the stationary housing 200 and the support frame 300;
Referring to fig. 1-2 again, a housing 200 is fixedly connected to the middle part of the top of the bottom plate 100, for installing a stepping motor 210, a supporting frame 300 is fixedly connected to the middle part of the rear part of the top of the bottom plate 100, for installing an electric telescopic rod 310, the middle part of the bottom of the inner cavity of the housing 200 is fixedly connected with the stepping motor 210, the end part of the output shaft of the stepping motor 210 is fixedly connected with a turntable 220, the outer side of the top of the turntable 220 is uniformly provided with a placing groove 230, the middle part of the inner side of the supporting frame 300 is fixedly connected with an electric telescopic rod 310, the end part of the output shaft of the electric telescopic rod 310 is fixedly connected with a connecting plate 320, the middle part of the front side of the top of the connecting plate 320 is fixedly connected with a sampling needle 330 in a penetrating manner, the middle part of the top of the supporting frame 300 is fixedly connected with a pump 340, the inlet end of the pump 340 is fixedly connected with a liquid inlet pipe 350, the outlet end of the pump 340 is fixedly connected with a liquid outlet pipe 360, and the top of the turntable 220 is movably connected with a taking mechanism 400;
Referring again to fig. 3, the pick-up mechanism 400 includes a positioning hole 410, a positioning post 420, a circular plate 430, a handle 440, a loft hole 450, a chute 460, a compression spring 470, a compression rod 480, and a clamping plate 490;
Referring to fig. 3 again, a positioning hole 410 is formed in the middle of the top of the turntable 220, a positioning column 420 is slidably connected inside the positioning hole 410, a circular plate 430 is fixedly connected to the top end of the positioning column 420, and a handle 440 is fixedly connected to the middle of the top of the circular plate 430;
Referring to fig. 3 again, the top outer side edge of the circular plate 430 is uniformly provided with a lofting hole 450, the inner side wall of the lofting hole 450 is symmetrically provided with a chute 460, the middle part of the opposite side of the chute 460 is fixedly connected with an extrusion spring 470, the other end of the extrusion spring 470 is fixedly connected with an extrusion rod 480, and the other end of the extrusion rod 480 is fixedly connected with a clamping plate 490.
To sum up, in the gap stage of detection, place reagent bottle inside lofting hole 450, make it extrude the arc swash plate, make splint 490 separate, make extrusion pole 480 slide in spout 460 inside, extrude extrusion spring 470, make extrusion spring 470 deformation, through extrusion spring 470's reaction force, make splint 490 clamp the reagent tube fixedly, after the detection is accomplished, pulling handle 440 dismantle the plectane 430 on carousel 220, make the whole dismantlement of reagent bottle on plectane 430, later place the plectane 430 of installing the reagent bottle on carousel 220, accomplish the change, thereby avoid shifting out the reagent bottle one by one, the labour saving and time saving, promote transfer efficiency, thereby promote whole detection efficiency.
Referring to fig. 2 again, the input ends of the stepper motor 210, the electric telescopic rod 310 and the pump 340 are all electrically connected with the output end of the external power source, and the inlet end of the liquid inlet tube 350 is fixedly connected with the top of the sampling needle 330.
Referring to fig. 3 again, the diameter of the positioning hole 410 is equal to that of the positioning post 420, and an arc-shaped sloping plate is fixedly connected to the top of the clamping plate 490.
Referring to fig. 3 again, the extrusion rod 480 is slidably connected inside the chute 460, and the outer sidewall of the extrusion rod 480 is attached to the inner sidewall of the chute 460.
Referring to fig. 4 again, a pressing mechanism 500 is fixedly connected to the bottom of the front side of the connection plate 320, the pressing mechanism 500 includes a slide bar 510, a baffle 520, a pressing plate 530, a return spring 540 and a through hole 550, the left and right parts of the front side of the connection plate 320 are connected with the slide bar 510 in a penetrating and sliding manner, the top of the slide bar 510 is fixedly connected with the baffle 520, the bottom of the slide bar 510 is fixedly connected with the pressing plate 530, the outside of the slide bar 510 is sleeved with the return spring 540, and the middle part of the top of the pressing plate 530 is provided with the through hole 550 in a penetrating manner.
Referring again to fig. 4, the top and bottom ends of the return spring 540 are fixedly connected to the bottom of the connection plate 320 and the top of the pressing plate 530, respectively, and the sampling needle 330 is located inside the through hole 550.
In summary, during sampling, the electric telescopic rod 310 drives the connecting plate 320 to descend, so that the pressing plate 530 descends, the pressing plate 530 contacts with the reagent bottle first, the connecting plate 320 continues to descend, the sliding rod 510 slides, the reset spring 540 is extruded, and the pressing plate 530 compresses the reagent bottle, so that the stability of the reagent bottle during sampling is ensured, and the reagent bottle is prevented from shaking, so that the sampling needle 330 is damaged.
In a specific use, when a person skilled in the art uses the electric telescopic rod 310 to drive the connecting plate 320 to descend during sampling, so that the pressing plate 530 descends, the pressing plate 530 contacts with the reagent bottle first, the connecting plate 320 continues to descend, the sliding rod 510 slides, the reset spring 540 is extruded, the pressing plate 530 compresses the reagent bottle, when the connecting plate 320 descends, the sampling needle 330 is positioned inside the reagent bottle, the pump 340 is started to suck the reagent into the chromatograph, the reagent bottle is placed inside the lofting hole 450 of the other circular plate 430 in a detected gap stage, the arc-shaped inclined plate is extruded, the clamping plate 490 is separated, the extruding rod 480 slides inside the sliding groove 460, the extruding spring 470 extrudes the extruding spring 470, the clamping plate 490 clamps and fixes the reagent bottle by the reacting force of the extruding spring 470, after the detection, the handle 440 is pulled to detach the circular plate 430 on the turntable 220, the reagent bottle on the circular plate 430 is integrally detached, and then the circular plate 430 on which the reagent bottle is mounted is placed on the turntable 220, and the replacement is completed.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A high efficiency advances kind mechanism, its characterized in that: including bottom plate (100), shell (200) and support frame (300), shell (200) fixedly connected with in bottom plate (100) top middle part, support frame (300) fixedly connected with in bottom plate (100) top rear portion middle part, shell (200) inner chamber bottom middle part fixedly connected with step motor (210), step motor (210) output shaft end fixedly connected with carousel (220), standing groove (230) have evenly been seted up in carousel (220) top outside, support frame (300) inboard top middle part fixedly connected with electric telescopic handle (310), electric telescopic handle's (310) output shaft end fixedly connected with connecting plate (320), connecting plate (320) top front side middle part through fixedly connected with sampling needle (330), support frame (300) top middle part fixedly connected with pump (340), pump (340) inlet end fixedly connected with feed liquor pipe (350), pump (340) outlet end fixedly connected with drain pipe (360), carousel (220) top swing joint has and takes mechanism (400), take mechanism (400), including locating hole (420), compression leg (410), compression leg (430), slide groove (450), slide way (430) The extrusion device comprises an extrusion rod (480) and a clamping plate (490), wherein a positioning hole (410) is formed in the middle of the top of the turntable (220), a positioning column (420) is connected inside the positioning hole (410) in a sliding mode, a circular plate (430) is fixedly connected to the top of the positioning column (420), a handle (440) is fixedly connected to the middle of the top of the circular plate (430), a lofting hole (450) is uniformly formed in the outer side edge of the top of the circular plate (430), sliding grooves (460) are symmetrically formed in the inner side walls of the lofting hole (450), extrusion springs (470) are fixedly connected to the middle of opposite sides of the sliding grooves (460), the other ends of the extrusion springs (470) are fixedly connected with the extrusion rod (480), and clamping plates (490) are fixedly connected to the other ends of the extrusion rod (480).
2. The high efficiency sample injection mechanism of claim 1, wherein: the stepping motor (210), the electric telescopic rod (310) and the pump (340) are electrically connected with the output end of an external power supply, and the inlet end of the liquid inlet pipe (350) is fixedly connected with the top of the sampling needle (330).
3. The high efficiency sample injection mechanism of claim 1, wherein: the diameter of the positioning hole (410) is equal to that of the positioning column (420), and the top of the clamping plate (490) is fixedly connected with an arc-shaped sloping plate.
4. The high efficiency sample injection mechanism of claim 1, wherein: the extrusion rod (480) is slidably connected to the inside of the chute (460), and the outer side wall of the extrusion rod (480) is attached to the inner side wall of the chute (460).
5. The high efficiency sample injection mechanism of claim 1, wherein: the utility model discloses a compression mechanism, including connecting plate (320), connecting plate (320) front side bottom fixedly connected with hold-down mechanism (500), hold-down mechanism (500) include slide bar (510), baffle (520), clamp plate (530), reset spring (540) and through-hole (550), slide connection has slide bar (510) about connecting plate (320) front side, slide bar (510) top fixedly connected with baffle (520), slide bar (510) bottom fixedly connected with clamp plate (530), reset spring (540) have been cup jointed in the slide bar (510) outside, through-hole (550) have been seted up in the middle part of clamp plate (530) top.
6. The high efficiency sample injection mechanism of claim 5, wherein: the top and the bottom of the return spring (540) are fixedly connected with the bottom of the connecting plate (320) and the top of the pressing plate (530) respectively, and the sampling needle (330) is positioned at the inner side of the through hole (550).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322981961.2U CN221426562U (en) | 2023-11-06 | 2023-11-06 | High-efficiency sample injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322981961.2U CN221426562U (en) | 2023-11-06 | 2023-11-06 | High-efficiency sample injection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221426562U true CN221426562U (en) | 2024-07-26 |
Family
ID=92012792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322981961.2U Active CN221426562U (en) | 2023-11-06 | 2023-11-06 | High-efficiency sample injection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221426562U (en) |
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2023
- 2023-11-06 CN CN202322981961.2U patent/CN221426562U/en active Active
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