Sample injection track device
By designing a sample track device for reciprocating moving parts and toggle units, the problem of difficulty in conveying the sample equipment in the prior art is solved, and the long-distance accurate movement of the sample holder is achieved.
Patent Information
- Application Number
- CN202421058522.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing injection devices are difficult to carry out long distances, resulting in misalignment of the positioning of the sample holder.
A sample injection track device is designed, including a reciprocating moving moving member and a toggle unit. Through the coordination of the paddle and the blocking block, the unidirectional movement of the sample holder is realized, and the short-distance displacement is accumulated through the repeated reciprocating process to complete the long-distance displacement.
It effectively reduces the inertia of the sample rack, avoids the inaccurate positioning of the sample rack, and achieves accurate movement over long distances.
Smart Images
Figure CN222913674U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluorescence detection, in particular to a sample injection track device. Background Art
[0002] Fluorescence immunoassay technology combines the high sensitivity of fluorescence technology with the high specificity of immunological technology, providing a unique detection technology for immunology, clinical histochemistry and laboratory diagnosis that cannot be replaced by other methods.
[0003] When injecting samples, the existing injection device is limited by the structure and is difficult to transport the sample rack over a long distance. In addition, the inertia of long-distance movement easily causes the positioning of the sample rack to be inaccurate. Utility Model Content
[0004] In view of this, it is necessary to provide a sample injection track device to solve the problem that the existing sample injection device is difficult to transport over long distances.
[0005] The utility model provides a sample introduction track device, comprising a sample rack for clamping a test tube, the bottom of the sample rack is provided with a plurality of grooves, and also comprises a panel shell and a sample feeding assembly arranged in the panel shell, the bottom of the sample rack is slidably connected with the top of the panel shell, the sample feeding assembly comprises a reciprocating movable member and a toggle unit, the toggle unit comprises a paddle and a blocking block, the paddle is rotatably connected with the movable member, the paddle can be rotated in a plane perpendicular to the panel shell, and the blocking block is fixedly connected with the movable member; an opening arranged relative to the sample rack is provided on the panel shell; the paddle has an abutting position and a spacing position relative to the blocking block, in the abutting position, the paddle abuts with the blocking block, the end of the paddle is inserted into the groove through the opening, and the movable member can drive the sample rack to move unidirectionally; in the spacing position, the paddle and the blocking block are spaced apart, and the end of the paddle is slidably connected with the sample rack.
[0006] Furthermore, an inclined portion is provided at one end of the paddle relative to the opening, the inclined portion is relatively smoothly arranged, and the tip of the inclined portion can be inserted into the groove.
[0007] Furthermore, the two shifting units are spaced apart to form a combination, and the two shifting pieces are relatively symmetrically arranged, and the two shifting pieces can respectively shift the sample rack forward or backward.
[0008] Furthermore, at least two groups of the toggle units are arranged along the moving track of the sample rack, the panel housing is provided with an opening adapted to each of the toggle units, and adjacent toggle units can alternately move the sample rack to move the sample rack over a long distance.
[0009] Further, the sample feeding assembly further includes a moving unit. The moving unit includes a transmission belt installed in the panel housing. The moving member is connected to the transmission belt through a bracket, and the transmission belt can drive the moving member to reciprocate.
[0010] Further, it further includes a sample pushing assembly. The sample pushing assembly includes at least two movable pushing members. The pushing members are slidably connected to the panel housing, and the pushing members can move relative to the moving track perpendicular to the sample rack to push the sample rack to cooperate with the paddle.
[0011] Further, it further includes a sample withdrawing assembly. The sample withdrawing assembly includes at least two movable pushing-out members. The pushing-out members are slidably connected to the panel housing, and the pushing-out members can move relative to the moving track perpendicular to the sample rack to push the sample rack out of cooperation with the paddle.
[0012] Further, the panel housing includes an upper panel and a lower panel spaced apart from each other. The sample feeding assembly, the sample pushing assembly, and the sample withdrawing assembly are all arranged in the space formed between the upper panel and the lower panel. Different sliding grooves are formed on the upper panel, and the pushing members and the pushing-out members are arranged in the sliding grooves.
[0013] Further, the sample feeding assembly further includes a limiting unit. The limiting unit includes two guide plates. The bottom of the guide plates is fixedly connected to the upper panel. A limiting space for restricting the movement of the sample rack is formed between the two guide plates. Notches are provided on the guide plates connected to the sliding grooves for the sample pushing assembly and the sample withdrawing assembly.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] The utility model provides a sample feeding track device, which is provided with a sample feeding assembly, wherein the sample feeding assembly includes a reciprocating moving member and a toggle unit, wherein the moving member can reciprocate relative to the panel housing inside the panel housing, wherein the toggle unit includes a paddle and a blocking block, wherein the paddle is rotatably connected to the moving member, wherein the paddle can rotate in a plane perpendicular to the panel housing, wherein the blocking block is fixedly connected to the moving member, and wherein an opening arranged relative to the sample rack is provided on the panel housing. The paddle has an abutting position and a spacing position relative to the blocking block, wherein at the abutting position, the paddle abuts against the blocking block, wherein the end of the paddle is inserted into a groove through the opening, and the moving member can drive the sample rack to move unidirectionally. At the spacing position, the paddle is spaced apart from the blocking block, and the end of the paddle is slidably connected to the sample rack. During the reciprocating movement of the moving member, when the moving member moves close to the sample rack, the paddle maintains a spacing position relative to the blocking block, wherein the end of the paddle is slidably connected to the sample rack, wherein the end of the paddle passes between the grooves, and the paddle and the sample rack are staggered. When the moving part moves away from the sample rack, the paddle keeps contact with the blocking block, and the end of the paddle is inserted into the groove through the opening. The paddle is blocked by the blocking block and cannot rotate in the opposite direction. The moving part can drive the sample rack to move a short distance. By repeating this reciprocating process, the sample rack moves a short distance cumulatively to complete a long-distance displacement. This can reduce the inertia of the sample rack and avoid the problem of inaccurate positioning of the sample rack. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;
[0018] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;
[0019] Figure 3 The overall structure of the utility model is shown in FIG. Figure 3 ;
[0020] Figure 4 This is a schematic diagram of the structure of the toggle unit in the utility model. Figure 1 ;
[0021] Figure 5 This is a schematic diagram of the structure of the toggle unit in the utility model. Figure 2 ;
[0022] Figure 6 It is a schematic diagram of the overall structure of the utility model from top view;
[0023] Figure 7 It is a structural schematic diagram of the sample rack in the utility model.
[0024] In the figure, 100, sample rack; 110, groove;
[0025] 200, panel housing; 210, opening; 220, upper panel; 230, lower panel; 240, slide groove;
[0026] 300, sample feeding assembly; 310, moving member; 320, toggle unit; 321, paddle; 321a, inclined portion; 322, blocking block; 330, moving unit; 331, transmission belt; 340, limit unit; 341, guide plate;
[0027] 400, sample propulsion assembly; 410, propulsion member;
[0028] 500, sample exit component; 510, ejection component. DETAILED DESCRIPTION
[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.
[0030] A sample introduction track device in the present embodiment relates to the field of fluorescence detection technology. A reciprocating moving part 310 is provided. A paddle 321 similar to a ratchet is provided on the moving part 310 to drive the sample rack 100 to move in one direction. Thus, only a smaller moving part 310 and a smaller movement amplitude are required to drive the sample rack 100 to move over a long distance. The structure is simpler, the controllability is good, and the movement accuracy is high.
[0031] See also Figures 1 to 7 In this embodiment, a sample feeding track device includes a sample rack 100 for clamping a test tube, and a plurality of linearly arranged grooves 110 are provided at the bottom of the sample rack 100. The sample feeding track device also includes a panel housing 200 and a sample feeding assembly 300 disposed in the panel housing 200. The panel housing 200 serves as a supporting structure of the entire device, can carry the sample rack 100 and provide a basis for the installation of the sample feeding assembly 300, and the sample feeding assembly 300 can drive the sample rack 100 to move as needed.
[0032] The sample feeding assembly 300 includes a reciprocating moving member 310 and a toggle unit 320. The moving member 310 can reciprocate relative to the panel housing 200 in the interior of the panel housing 200. The toggle unit 320 includes a paddle 321 and a blocking block 322. The paddle 321 is rotatably connected to the moving member 310. The paddle 321 can rotate in a plane perpendicular to the panel housing 200. The blocking block 322 is fixedly connected to the moving member 310. The panel housing 200 is provided with an opening 210 arranged relative to the sample rack 100. The paddle 321 has an abutting position and a spacing position relative to the blocking block 322. At the abutting position, the paddle 321 abuts against the blocking block 322. The end of the paddle 321 is inserted into the groove 110 through the opening 210. The moving member 310 can drive the sample rack 100 to move in one direction. In the spaced position, the paddle 321 is spaced from the blocking block 322, and the end of the paddle 321 is slidably connected to the sample rack 100. During the reciprocating movement of the moving member 310, when the moving member 310 moves closer to the sample rack 100, the paddle 321 maintains a spaced position relative to the blocking block 322, the end of the paddle 321 is slidably connected to the sample rack 100, the end of the paddle 321 passes between the grooves 110, and the paddle 321 and the sample rack 100 are staggered. When the moving member 310 moves away from the sample rack 100, the paddle 321 maintains abutment position relative to the blocking block 322, the end of the paddle 321 is inserted into the groove 110 through the opening 210, and the paddle 321 is blocked by the blocking block 322 and cannot rotate in the opposite direction. The moving member 310 can drive the sample rack 100 to move a short distance. By repeating this reciprocating process, the short-distance movement of the sample rack 100 is accumulated to complete the long-distance displacement. The inertia of the sample rack 100 can be reduced, and the problem of inaccurate positioning of the sample rack 100 can be avoided.
[0033] In some embodiments, see Figure 4 and Figure 5 The end of the paddle 321 opposite to the opening 210 is provided with an inclined portion 321a, which is relatively smooth and can slide with low resistance between the groove 110 of the sample rack 100, thereby reducing the friction between the paddle 321 and the sample rack 100 and facilitating the moving member 310 to move closer to the sample rack 100. The tip of the inclined portion 321a can be inserted into the groove 110 and abut against the inner wall of the groove 110, thereby being relatively locked. The moving member 310 can drive the sample rack 100 to move a small distance with the help of the paddle 321.
[0034] In some embodiments, see Figure 3The two toggle units 320 are arranged at intervals to form a combination, and the two paddles 321 are arranged relatively symmetrically. One toggle unit 320 can drive the sample rack 100 forward a small distance, and the other toggle unit 320 can drive the sample rack 100 backward a small distance. The two toggle units 320 cooperate with each other to realize bidirectional driving of the sample piece.
[0035] As a further embodiment, at least two groups of toggle units 320 are arranged along the moving track of the sample rack 100, and the panel housing 200 is provided with an opening 210 adapted to each toggle unit 320, and the distance between two adjacent openings 210 is less than the length of the sample rack 100. A group of toggle units 320 can use one opening 210 to move one end of the sample rack 100 to another adjacent opening 210. At this time, the sample rack 100 is separated from the previous toggle unit 320, and the next toggle unit 320 can continue to act on the sample rack 100 to push the sample rack 100 to move. The moving distance of the sample rack 100 can be several times the length of the sample rack 100, and the moving distance of the sample rack 100 can be further extended.
[0036] It should be noted that: an optocoupler counter is provided on the panel housing 200 , which can provide the in-place status of the sample rack 100 through the on-off signal, provide feedback on the position of the sample rack 100 , and eliminate the cumulative error of the reciprocating short-distance displacement of the sample rack 100 .
[0037] In some embodiments, please refer to Figure 3 The sample feeding assembly 300 also includes a moving unit 330, which includes a transmission belt 331 installed in the panel housing 200. The transmission belt 331 is installed in the panel housing 200 through a pulley, and the pulley is connected to the stepper motor. The transmission belt 331 reciprocates at a set distance. The moving part 310 is connected to the transmission belt 331 through a bracket. The transmission belt 331 can drive the moving part 310 to reciprocate, thereby finally driving the sample rack 100.
[0038] In the specific implementation process, the moving member 310 is a long strip moving plate, which is connected to the panel housing 200 through a U-shaped bracket, and the moving plate is confined in the U-shaped bracket. The moving plate is connected to the transmission belt 331 through a sheet and a bolt, and the transmission belt 331 can drive the moving plate to move. The paddle 321 is connected to the moving plate through a pin, and the paddle 321 can rotate relatively along the side of the moving plate.
[0039] In some embodiments, see Figure 1 , Figure 2 , Figure 3 as well as Figure 6The sample feeding track device also includes a sample pushing assembly 400, which includes at least two movable pushing members 410. The pushing members 410 are pushing blocks, which extend outward from the panel housing 200 and can abut against the sample rack 100. The pushing members 410 are slidably connected to the panel housing 200. The pushing members 410 can move relatively perpendicular to the moving track of the sample rack 100. The covering area of the pushing members 410 is the sample collection area for placing the sample rack 100. The pushing members 410 can push the sample rack 100 to cooperate with the paddle 321, so that the moving plate and the paddle unit 320 can drive the sample member to feed and move.
[0040] In some embodiments, see Figure 1 , Figure 2 , Figure 3 as well as Figure 6 The sample injection track device also includes a sample exit component 500, which includes at least two movable ejection members 510. The ejection member 510 is an ejection block, which extends outward from the panel housing 200 and can abut against the sample rack 100. The ejection member 510 is slidably connected to the panel housing 200. The ejection member 510 can move relatively perpendicular to the moving trajectory of the sample rack 100. The area covered by the ejection member 510 is a sample rack recovery area for placing the sample rack 100. The ejection member 510 can push the sample rack 100 to disengage from the paddle 321, so that the sample rack 100 that has been tested is disengaged from the moving plate and the paddle unit 320, which facilitates the subsequent sample rack 100 to be continued to be operated.
[0041] It should be noted that the panel housing 200 includes an upper panel 220 and a lower panel 230 spaced apart from each other and a connecting plate parallel to the moving track of the sample rack 100, and the two ends of the connecting plate are respectively fixedly connected to the upper panel 220 and the lower panel 230. The sample feeding assembly 300, the sample pushing assembly 400 and the sample exit assembly 500 are all arranged in the space formed between the upper panel 220 and the lower panel 230. Different slide grooves 240 are provided on the upper panel 220, and the slide grooves 240 are arranged perpendicular to the moving track of the sample rack 100. The pushing member 410 and the exit member are arranged in the slide grooves 240.
[0042] In the specific implementation process, a linear drive unit is arranged in the space between the upper panel 220 and the lower panel 230. The linear drive unit is arranged perpendicular to the moving trajectory of the sample rack 100. The linear drive unit can be a guide rail slider mechanism, a screw nut mechanism or a drive cylinder mechanism, etc. The linear drive unit can drive the pusher 410 and the ejector to move to realize the driving of the sample rack 100 and complete the loading and unloading of the sample rack 100.
[0043] In some embodiments, see Figure 1 andFigure 3 The sample feeding assembly 300 also includes a limiting unit 340, which includes two guide plates 341. The bottom of the guide plates 341 is fixedly connected to the upper panel 220, and a limiting space for limiting the movement of the sample rack 100 is formed between the two guide plates 341. A notch is provided on the guide plate 341 connected to the slide groove 240, which is relatively set to the sample pushing assembly 400 and the sample exiting assembly 500, and the sample rack 100 can enter and exit the limiting space through the notch.
[0044] Workflow: First, the medical staff puts the sample rack 100 with the test tube into the sample collection area of the upper panel 220. After the sensor detects that there is a sample rack 100 in the collection area, the pusher 410 of the sample push assembly 400 starts to push the sample rack 100. The sample rack 100 passes through the gap and enters the limited space. The paddle 321 of the toggle unit 320 drives the sample rack 100 to move to the set sample collection position, and other equipment that cooperates with the sample introduction track device completes the sampling action. Then, if the test result finds an abnormality, the moving part 310 drives the toggle unit 320 to move in the opposite direction. Push the sample rack 100 to be sampled back to the sample collection position for secondary sampling. After the collection is completed, the moving part 310 drives the toggle unit 320 to move forward, and then continues to push the sample rack 100 horizontally to the sample rack recovery area to wait for recovery. The sample feeding assembly 300 can use a simple paddle 321 structure to accumulate short-distance displacements to achieve long-distance driving of the sample rack 100, and can also reduce the inertia of the sample rack 100 to avoid the problem of inaccurate positioning of the sample rack 100.
[0045] The above description is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered by the present invention.
Claims
1. A sample introduction track device, comprising a sample rack for clamping a test tube, wherein a plurality of grooves are provided at the bottom of the sample rack, characterized in that: It also includes a panel shell and a sample feeding assembly arranged in the panel shell, the bottom of the sample rack is slidably connected to the top of the panel shell, the sample feeding assembly includes a reciprocating movable member and a toggle unit, the toggle unit includes a paddle and a blocking block, the paddle is rotatably connected to the movable member, the paddle can rotate in a plane perpendicular to the panel shell, and the blocking block is fixedly connected to the movable member; the panel shell is provided with an opening arranged relative to the sample rack; the paddle has an abutting position and a spacing position relative to the blocking block, in the abutting position, the paddle abuts against the blocking block, the end of the paddle is inserted into the groove through the opening, and the movable member can drive the sample rack to move unidirectionally; in the spacing position, the paddle and the blocking block are spaced apart, and the end of the paddle is slidably connected to the sample rack.
2. A sample introduction track device according to claim 1, characterized in that: An inclined portion is provided at one end of the paddle opposite to the opening. The inclined portion is relatively smoothly arranged, and the tip of the inclined portion can be inserted into the groove.
3. A sample introduction track device according to claim 1 or 2, characterized in that: The two toggle units are spaced apart to form a combination, the two toggle pieces are relatively symmetrically arranged, and the two toggle pieces can respectively toggle the sample rack forward or backward.
4. The injection track device according to claim 3, characterized in that: At least two groups of the toggle units are arranged along the moving track of the sample rack, the panel housing is provided with an opening adapted to each of the toggle units, and adjacent toggle units can alternately move the sample rack to allow the sample rack to be moved over a long distance.
5. The injection track device according to claim 4, characterized in that: The sample feeding assembly further comprises a moving unit, which comprises a transmission belt installed in the panel housing, the moving member is connected to the transmission belt via a bracket, and the transmission belt can drive the moving member to move back and forth.
6. The injection track device according to claim 1, characterized in that: It also includes a sample propulsion assembly, which includes at least two movable propulsion members, which are slidably connected to the panel housing and can move relatively perpendicular to the movement trajectory of the sample rack to push the sample rack to cooperate with the paddle.
7. The injection track device according to claim 1, characterized in that: It also includes a sample ejection component, which includes at least two movable ejection members, which are slidably connected to the panel housing and can move relative to and perpendicular to the movement trajectory of the sample rack to push the sample rack out of cooperation with the paddle.
8. A sample introduction track device according to claim 1, 6 or 7, characterized in that: The panel shell includes an upper panel and a lower panel spaced apart from each other. The sample feeding assembly, the sample pushing assembly and the sample exit assembly are all arranged in the space formed between the upper panel and the lower panel. Different slide grooves are opened on the upper panel, and the pushing member and the exit member are arranged in the slide grooves.
9. The injection track device according to claim 8, characterized in that: The sample feeding assembly also includes a limiting unit, which includes two guide plates. The bottom of the guide plate is fixedly connected to the upper panel, and a limiting space for limiting the movement of the sample rack is formed between the two guide plates. The guide plate connected to the slide groove is provided with a notch set relative to the sample pushing assembly and the sample exiting assembly.