Fractions collector capable of preventing sample loss
Through the design of control components and adjustment components, and the use of servo motors and cylinders to control the rubber stopper, the problem of sample loss in the fraction collector is solved, precise control and labor-saving effects are achieved, and no sample loss is ensured during the transfer process.
Patent Information
- Application Number
- CN202421847909.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-08-01
AI Technical Summary
Existing fraction collectors are prone to causing losses when collecting fraction liquid samples, resulting in economic waste and waste of resources.
The control component and the adjustment component are used to control the movement of the rubber stopper through the servo motor and the cylinder, and the liquid outflow is precisely controlled. Combined with the support component and the test tube rack design, it ensures that the sample is not lost during the transfer process.
It effectively prevents sample loss, saves manpower, improves the accuracy of outflow position, and the device can be adjusted horizontally, which makes observation intuitive and reduces economic losses.
Smart Images
Figure CN223426605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fraction collectors, in particular to a fraction collector capable of preventing sample loss. Background Art
[0002] The fraction collector is an auxiliary device of the liquid chromatograph, mainly used for preparing and enriching pure components. When it is necessary to provide a standard pure sample or to further identify a component, the fraction collector is often used to collect the required components. The pure components can be obtained by removing the mobile phase in the fraction. The fraction collector is one of the important equipment for liquid chromatography analysis in scientific research, materials, colleges and universities, etc.
[0003] When collecting the fraction liquid sample, the existing fraction collector may cause the loss of the fraction liquid sample during the transition from one test tube to another test tube, thereby causing economic loss and wasting available resources. Utility Model Content
[0004] The purpose of the present utility model is to provide a fraction collector that prevents sample loss, so as to solve the problems raised in the above background technology.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fraction collector for preventing sample loss, wherein the control component is fixedly connected to one side of the adjustment component, the device housing is fixedly connected to one side of the adjustment component, the support component is fixedly connected to one side of the device housing, the collection component is detachably connected to one side of the device housing, the fixing buckle is fixedly connected to one side of the device housing, the adjustment component includes an adjustment column, a reserved cavity is set on one side of the adjustment column, a second servo motor is fixedly connected to one side of the reserved cavity of the adjustment column, a stopper is fixedly connected to one side of the reserved cavity of the adjustment column, the stopper is placed on one side of the second servo motor, one side of the second bearing is fixedly connected to one side of the adjustment column, one side of the second screw is fixedly connected to one side of the second servo motor through a coupling, and the second screw One side is fixedly connected to one side of bearing two, one side of the slider is threadedly connected to one side of screw two, screw two passes through the slider, the connecting block is fixedly connected to one side of the slider, one side of the connecting block is provided with a leak-proof reserved groove and a liquid circulation hole, the leak-proof reserved groove is connected to the liquid circulation hole, the small cylinder is fixedly connected to one side of the connecting block, one side of the rubber plug is fixedly connected to one side of the small cylinder, one side of the rubber plug extends into one side of the liquid circulation hole, the rubber plug is movably plugged into one side of the leak-proof reserved groove, the liquid outlet pipe is fixedly connected to one side of the connecting block, the connecting port is fixedly connected to one side of the connecting block, one side of the collecting liquid buffer is movably plugged into one side of the connecting port, and the liquid inlet pipe is fixedly connected to one side of the collecting liquid buffer.
[0006] As a further solution of the present invention: a servo motor is fixedly connected to one side of the device housing, a protective shell is detachably connected to one side of the device housing, the protective shell is placed on one side of the servo motor, one side of the bearing is fixedly connected to one side of the protective shell, one side of the screw is fixedly connected to one side of the servo motor through a coupling, one side of the screw is fixedly connected to one side of the bearing, a limit rod is fixedly connected to one side of the protective shell, one side of the adjusting column is threadedly connected to one side of the screw, one side of the adjusting column is slidably connected to one side of the limit rod, and the adjusting column passes through one side of the device housing.
[0007] As a further solution of the present invention: support rod one is fixedly connected to one side of the device housing, the outer wall of support rod two is threadedly connected to one side of support rod one, and the support plate is fixedly connected to one side of support rod two.
[0008] As a further solution of the present invention: the second folding plate is fixedly connected to one side of the device housing, both ends of the connecting rod are fixedly connected to one side of the second folding plate, and one side of the first folding plate is rotatably connected to one side of the connecting rod.
[0009] As a further solution of the present invention: the test tube rack is detachably connected to one side of the device housing, and the test tube is detachably connected to one side of the test tube rack.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] The fraction collector can control the outflow and closing of the fraction liquid sample through the control component. When the collected fraction liquid sample is transferred from one test tube to another, the fraction liquid sample can be controlled to stop flowing out, thereby avoiding economic losses and waste of resources.
[0012] The fraction collector, through the function of the adjustment component, is more convenient when collecting the fraction liquid sample, saves a lot of manpower output and improves the accuracy of the outflow position of the fraction liquid sample.
[0013] The fraction collector, through the function of the supporting assembly, enables the device to be adjusted horizontally during use, thereby preventing the instrument from tilting and allowing the collection of the fraction liquid sample to be observed more intuitively. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the front structure of a fraction collector that prevents sample loss.
[0015] Figure 2 Schematic diagram of the front internal structure of a fraction collector that prevents sample loss.
[0016] Figure 3 This is a schematic diagram of the right side structure of a fraction collector that prevents sample loss.
[0017] Figure 4Schematic diagram of the right side internal structure of a fraction collector that prevents sample loss.
[0018] Figure 5 Schematic diagram of a fixing buckle structure in a fraction collector for preventing sample loss.
[0019] Figure 6 This is a schematic diagram of the structure of the collection component in a fraction collector that prevents sample loss.
[0020] In the figure: 1. Device housing; 2. Support assembly; 201. Support rod 1; 202. Support rod 2; 203. Support plate; 3. Adjustment assembly; 301. Protective shell; 302. Servo motor 1; 303. Screw rod 1; 304. Bearing 1; 305. Limit rod; 306. Adjustment column; 307. Stopper; 308. Servo motor 2; 309. Screw rod 2; 310. Bearing 2; 311. Slider; 4. Control Components; 401, connecting block; 402, small cylinder; 403, liquid outlet pipe; 404, connecting port; 405, collection liquid buffer; 406, liquid inlet pipe; 407, rubber stopper; 408, leak-proof reserved groove; 409, liquid flow hole; 5, collection assembly; 501, test tube; 502, test tube rack; 503, mounting hole; 6, fixing buckle; 601, folding plate 1; 602, folding plate 2; 603, connecting rod; DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] See also Figures 1 to 6 In an embodiment of the present invention, a fraction collector for preventing sample loss includes an adjusting component 3, a control component 4 fixedly connected to the lower side of the adjusting component 3, a device housing 1 fixedly connected to the outside of the adjusting component 3, a support component 2 fixedly connected to the lower side of the device housing 1, a collecting component 5 detachably connected to the upper side of the device housing 1, and a fixing buckle 6 fixedly connected to the upper side of the device housing 1.
[0023] The adjustment component includes an adjustment column 306, a reserved cavity is set inside the adjustment column 306, a servo motor 308 is fixedly connected to the inner side of the reserved cavity of the adjustment column 306, a stopper 307 is fixedly connected to the inner side of the reserved cavity of the adjustment column 306, the stopper 307 is placed at the output end of the servo motor 308, the outer wall of the bearing 310 is fixedly connected to the inner wall of the adjustment column 306, one side of the screw 309 is fixedly connected to the output end of the servo motor 308, the outer wall of the other side of the screw 309 is fixedly connected to the inner wall of the bearing 310, the inner wall of the slider 311 is threadedly connected to the outer wall of the screw 309, and the screw 309 is fixedly connected to the outer wall of the screw 309. 09 passes through the slider 311, the connecting block 401 is fixedly connected to the lower side of the slider 311, and a leak-proof reserved groove 408 and a liquid circulation hole 409 are provided on the inner side of the connecting block 401. The leak-proof reserved groove 408 is connected to the liquid circulation hole 409, and the small cylinder 402 is fixedly connected to the lower side of the connecting block 401. One side of the rubber plug 407 is fixedly connected to the output end of the small cylinder 402, and the other side of the rubber plug 407 extends into the inner side of the liquid circulation hole 409. The rubber plug 407 is movably plugged into the inner side of the leak-proof reserved groove 408, the liquid outlet pipe 403 is fixedly connected to the lower side of the connecting block 401, and the connecting port 404 is fixedly connected The outer wall of the middle part of the collecting liquid buffer 405 is movably connected to the inner wall of the connecting block 401, and the outer wall of the lower side of the collecting liquid buffer 405 is movably connected to the inner wall of the connecting port 404. The liquid inlet pipe 406 is fixedly connected to the upper side of the collecting liquid buffer 405. When in use, the rubber plug 407 is first extended into the liquid flow hole 409 under the action of the small cylinder 402 to block the liquid flow hole 409, and then the fractionated liquid sample is injected into the collecting liquid buffer 405 through the liquid inlet pipe 406. The connecting port 404 makes the lower end of the collecting liquid buffer 405 and the liquid flow hole 409 Always keep the connection state, start the servo motor 2 308, and the servo motor 2 308 drives the screw 2 309 to rotate with the cooperation of the bearing 2 310. The screw 2 309 rotates to drive the slider 311 to move. The block 307 prevents the slider 311 from colliding with the servo motor 2 308. The control component 4 moves to the specified position driven by the slider 311, and then starts the small cylinder 402. The small cylinder 402 drives the rubber plug 407 to move in the leak-proof reserved groove 408 in the form of plugging, so that the rubber plug 407 can seal and open the liquid flow hole to control the downstream of the distillate liquid sample.
[0024] The servo motor 302 is fixedly connected to the left side of the device housing 1, and the protective shell 301 is detachably connected to the left side of the device housing 1. The protective shell 301 is placed on the outside of the servo motor 302, and the outer wall of the bearing 304 is fixedly connected to the inner wall of the protective shell 301. One side of the screw 303 is fixedly connected to the output end of the servo motor 302 through a coupling, and the outer wall of the other side of the screw 303 is fixedly connected to the inner wall of the bearing 304. The limiting rod 305 is fixedly connected to the inner side of the protective shell 301, and the inner wall of the adjusting column 306 is threadedly connected to the outer wall of the screw 303. The inner wall of the adjusting column 306 is slidably connected to the inner wall of the limiting rod 305. The adjusting column 306 passes through the rear side of the device housing 1. When in use, the servo motor 302 is started, and the screw 303 is driven to rotate through the action of the bearing 304. The screw 303 cooperates with the limiting rod 305 to drive the adjusting column to move in the device housing 1, so that the adjusting column 306 moves to the specified position.
[0025] The support rod 1 201 is fixedly connected to the lower side of the device housing 1 , the outer wall of the support rod 202 is threadedly connected to the inner wall of the support rod 1 201 , and the support plate 203 is fixedly connected to the lower side of the support rod 202 .
[0026] The second folding plate 602 is fixedly connected to the upper side of the device housing 1 , both ends of the connecting rod 603 are fixedly connected to the inner side of the second folding plate 602 , and the inner wall of the first folding plate 601 is rotatably connected to the outer wall of the connecting rod 603 .
[0027] The test tube rack 502 is detachably connected to the upper side of the device housing 1 , and the test tube 501 is detachably connected to the inner side of the test tube rack 502 .
[0028] The working principle of the present invention is as follows: first, the device is placed in the designated position, and then the support rod 202 is rotated to extend and retract the support rod 202 inside the support rod 1 201 to level the device, and the folding plate 1 601 and the folding plate 2 602 are adjusted through the connecting rod 603 so that the folding plate 1 601 and the folding plate 2 602 are located on the same straight line, and the support plate 203 plays a supporting role, and then the test tube 501 is installed in the test tube rack 502. After the installation is completed, the test tube rack 502 is placed on the device housing 1 through the mounting hole 503 and the fixing buckle 6, and then the folding plate 1 601 is rotated under the action of the connecting rod 603. Folding plate 1 601 and folding plate 2 602 are vertically fixed to the test tube rack 502. The rubber stopper 407 is extended into the liquid flow hole 409 under the action of the small cylinder 402 to block the liquid flow hole 409. Then, the fractionated liquid sample is injected into the collection liquid buffer 405 through the liquid inlet pipe 406. The connection port 404 ensures that the lower end of the collection liquid buffer 405 and the liquid flow hole 409 are always connected. Then, the servo motor 1 302 is started, and the bearing 1 304 drives the screw 1 303 to rotate. The screw 1 303 rotates and cooperates with the limit rod 305 to drive the adjustment column to move within the device housing 1. The adjusting column 306 is moved to the specified position, and then the servo motor 2 308 is started. The servo motor 2 308 drives the screw 2 309 to rotate in cooperation with the bearing 2 310. The screw 2 309 rotates to drive the slider 311 to move. The block 307 prevents the slider 311 from colliding with the servo motor 2 308. The control component 4 moves to the specified position driven by the slider 311, and then the small cylinder 402 is started. The small cylinder 402 drives the rubber plug 407 to move in the leak-proof reserved groove 408 in the form of plugging, so that the rubber plug 407 is inserted into the leak-proof reserved groove 408. The rubber plug 407 no longer blocks the liquid flow hole, so that the fraction liquid sample in the collection liquid buffer 405 passes through the liquid flow hole 409 and the liquid outlet pipe 403 in turn and enters the test tube 501. When a certain amount of liquid is collected, the small cylinder 402 is started again. The small cylinder 402 drives the rubber plug 407 to move and block the liquid flow hole 409, so that the fraction liquid sample no longer flows out of the liquid outlet pipe 403. Then the above operation is repeated to control the component 4 to move to the upper side of another test tube 501 to continue collecting the fraction liquid sample.
[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A fraction collector for preventing sample loss, comprising an adjustment component (3), characterized in that: The control component (4) is fixedly connected to one side of the adjustment component (3), the device housing (1) is fixedly connected to one side of the adjustment component (3), the support component (2) is fixedly connected to one side of the device housing (1), the collection component (5) is detachably connected to one side of the device housing (1), the fixing buckle (6) is fixedly connected to one side of the device housing (1), the adjustment component includes an adjustment column (306), a reserved cavity is set on one side of the adjustment column (306), and the servo motor 2 (308) is fixedly connected to the adjustment column (306) On one side of the reserved cavity, the stopper (307) is fixedly connected to one side of the reserved cavity of the adjustment column (306), the stopper (307) is placed on one side of the servo motor (308), one side of the bearing (310) is fixedly connected to one side of the adjustment column (306), one side of the screw (309) is fixedly connected to one side of the servo motor (308) through a coupling, one side of the screw (309) is fixedly connected to one side of the bearing (310), one side of the slider (311) is threadedly connected to one side of the screw (309), and the screw (309) is fixedly connected to one side of the screw (309). (309) passes through the slider (311), the connecting block (401) is fixedly connected to one side of the slider (311), the connecting block (401) is provided with a leak-proof reserved groove (408) and a liquid circulation hole (409) on one side of the connecting block (401), the leak-proof reserved groove (408) is communicated with the liquid circulation hole (409), the small cylinder (402) is fixedly connected to one side of the connecting block (401), one side of the rubber plug (407) is fixedly connected to one side of the small cylinder (402), and one side of the rubber plug (407) extends into the liquid circulation hole ( 409), the rubber stopper (407) is movably connected to one side of the leak-proof reserved groove (408), the liquid outlet pipe (403) is fixedly connected to one side of the connecting block (401), the connecting port (404) is fixedly connected to one side of the connecting block (401), one side of the collecting liquid buffer (405) is movably connected to one side of the connecting block (401), one side of the collecting liquid buffer (405) is movably connected to one side of the connecting port (404), and the liquid inlet pipe (406) is fixedly connected to one side of the collecting liquid buffer (405).
2. A fraction collector for preventing sample loss according to claim 1, characterized in that: The servo motor (302) is fixedly connected to one side of the device housing (1), the protective shell (301) is detachably connected to one side of the device housing (1), the protective shell (301) is placed on one side of the servo motor (302), one side of the bearing (304) is fixedly connected to one side of the protective shell (301), one side of the screw (303) is fixedly connected to one side of the servo motor (302) through a coupling, one side of the screw (303) is fixedly connected to one side of the bearing (304), the limiting rod (305) is fixedly connected to one side of the protective shell (301), one side of the adjusting column (306) is threadedly connected to one side of the screw (303), one side of the adjusting column (306) is slidably connected to one side of the limiting rod (305), and the adjusting column (306) passes through one side of the device housing (1).
3. A fraction collector for preventing sample loss according to claim 1, characterized in that: The support rod 1 (201) is fixedly connected to one side of the device housing (1), the outer wall of the support rod 2 (202) is threadedly connected to one side of the support rod 1 (201), and the support plate (203) is fixedly connected to one side of the support rod 2 (202).
4. A fraction collector for preventing sample loss according to claim 1, characterized in that: The second folding plate (602) is fixedly connected to one side of the device housing (1), both ends of the connecting rod (603) are fixedly connected to one side of the second folding plate (602), and one side of the first folding plate (601) is rotatably connected to one side of the connecting rod (603).
5. The fraction collector for preventing sample loss according to claim 1, characterized in that: The test tube rack (502) is detachably connected to one side of the device housing (1), and the test tube (501) is detachably connected to one side of the test tube rack (502).