Multi-specification handheld sample applicator capable of accurately sampling

Abstract

According to the technical scheme, the multi-specification handheld sample applicator comprises a sleeve, an open groove is formed in the surface of one side of the sleeve, a through groove is formed in the inner bottom wall of the open groove, an extrusion mechanism is arranged on one side of the sleeve and comprises a movable plate and a connecting block, and the bottom of the movable plate is fixedly connected with the top of the connecting block; the multi-specification handheld sample applicator capable of accurately sampling has the beneficial effects that by arranging an extrusion mechanism, a user can press a movable plate to enable the movable plate and the connecting block to rotate to the position of a baffle, namely, the maximum rotation value is achieved, and the sampling accuracy is improved; the rubber milk sleeve at the top of the dropper is extruded to the same degree, so that a sample solution sucked each time is basically quantitative, and the problems that an existing sample application device is greatly influenced by human factors, accurate quantification cannot be realized, errors are easily caused, and data analysis is influenced are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of sample spotters, in particular to a multi-specification handheld sample spotter capable of accurately sampling. Background Art

[0002] The process of adding droplets of sample solution to be separated and identified onto the thin layer plate is called spotting. Spotting equipment is divided into handheld and mechanical types. The most commonly used spotting equipment is a capillary or micro-syringe. When spotting, the handheld spotter is directly held in contact with the surface of the thin layer plate, and the sample solution is added to the surface of the thin layer plate by capillary action or manual transfer to complete the spotting work.

[0003] When using existing spotters, they are handheld and greatly affected by human factors. Most of them have no way to control the amount of sample solution obtained, so accurate quantification cannot be achieved, which easily leads to errors and affects data analysis. Summary of the invention

[0004] To this end, the present invention provides a multi-specification handheld sample spotter that can accurately sample, and solves the problems mentioned in the above background technology by providing an extrusion mechanism.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a multi-specification handheld sample spotter capable of accurate sampling, comprising a sleeve, an open groove is provided on one side of the sleeve, a through groove is provided on the bottom wall of the open groove, and a squeezing mechanism is provided on one side of the sleeve; The extrusion mechanism comprises a movable plate and a connecting block, the bottom of the movable plate is fixedly connected to the top of the connecting block, both ends of the bottom of the connecting block are fixedly connected to a rotating rod, circular grooves are provided on the inner walls at both ends of the through slot, and the two rotating rods are rotatably connected to the sleeve through two circular grooves respectively, and the inner walls at both ends of the through slot are fixedly connected to a baffle, a fixed block is fixedly connected to the middle of one side of the movable plate, and the fixed block is fixedly connected to a cylinder away from the side of the movable plate, a spring is provided inside the cylinder, one end of the spring is fixedly connected to the fixed block, and the other end of the spring is fixedly connected to a connecting rod, the connecting rod is movably sleeved with the cylinder, the end of the connecting rod away from the spring is fixedly connected to the extrusion plate, and the two sides of the connecting rod close to the spring are fixedly connected to sliding rods, and sliding grooves are provided on the surfaces of both sides of the cylinder, and the two sliding rods are slidably connected to the cylinder through two sliding grooves respectively.

[0006] Preferably, the top cross-section of the movable plate is arc-shaped, and the movable plate matches the open slot.

[0007] Preferably, the extrusion plate is in a circular hemispherical shape.

[0008] Preferably, both the top and bottom surfaces of the sleeve are provided with openings, and the opening at the bottom is smaller than the opening at the top.

[0009] Preferably, a support rod is fixedly connected to one side of the bottom of the sleeve, and a ring is fixedly connected to the bottom of the support rod.

[0010] Preferably, a dropper is provided in the sleeve, a scale is provided on the dropper, and the bottom of the dropper extends into the ring and contacts the inner wall of the ring.

[0011] Preferably, a screw thread is integrally formed at the bottom of the collar, a connecting nozzle is provided at the bottom of the collar, and a top of the connecting nozzle is threadedly connected to the collar.

[0012] Preferably, a capillary is fixedly connected to the bottom of the connecting nozzle, and the capillary is connected to the interior of the connecting nozzle.

[0013] Preferably, a plurality of protrusions are provided on the surface of the sleeve away from the opening groove, and the plurality of protrusions are equidistantly distributed.

[0014] Preferably, a protective pad is fixedly embedded on a side of the movable plate away from the fixed block.

[0015] The embodiments of the present invention have the following advantages: The present invention provides a squeezing mechanism, and the user can press the movable plate to rotate the movable plate and the connecting block to the position of the baffle, that is, to reach the maximum rotation value, and squeeze the rubber latex sleeve on the top of the dropper to the same extent, so that the sample solution drawn each time is basically quantitative, which effectively solves the problem that the existing spotter is greatly affected by human factors, cannot achieve accurate quantification, is prone to errors, and affects data analysis.

[0016] The invention provides a plurality of connection nozzles, which are respectively connected with capillaries of various specifications, so as to facilitate spotting use. When in use, the connection nozzles can be quickly installed and replaced by tightening the threads along the bottom of the collar, and the invention is extremely practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the prior art descriptions are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 A schematic diagram of the overall structure provided by the present invention; Figure 2 A schematic diagram of the solution absorption provided by the present invention; Figure 3 The present invention provides Figure 2 A magnified view of the structure of the middle part A; Figure 4 The present invention provides Figure 2 A magnified view of the structure of the middle B section; Figure 5 The present invention provides Figure 2 Enlarged view of the structure of the middle C section; Figure 6 This is a schematic diagram of the explosion of the local structure provided by the present invention.

[0020] In the figure: 1. sleeve; 2. opening groove; 3. through groove; 4. movable plate; 5. connecting block; 6. rotating rod; 7. baffle; 8. fixed block; 9. cylinder; 10. spring; 11. connecting rod; 12. extrusion plate; 13. sliding rod; 14. sliding groove; 15. through hole; 16. supporting rod; 17. collar; 18. dropper; 19. connecting nozzle; 20. capillary; 21. protrusion; 22. protective pad, 23 solution bottle. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0022] See attached Figure 1-6 The present invention provides a multi-specification handheld sample spotter capable of accurate sampling, comprising a sleeve 1, an opening groove 2 is provided on one side of the sleeve 1, a through groove 3 is provided on the inner bottom wall of the opening groove 2, and a squeezing mechanism is provided on one side of the sleeve 1; The extrusion mechanism includes a movable plate 4 and a connecting block 5, the bottom of the movable plate 4 is fixedly connected to the top of the connecting block 5, both ends of the bottom of the connecting block 5 are fixedly connected with a rotating rod 6, circular grooves are provided on the inner walls at both ends of the through groove 3, and the two rotating rods 6 are rotatably connected to the sleeve 1 through the two circular grooves, and the inner walls at both ends of the through groove 3 are fixedly connected with baffles 7, a fixed block 8 is fixedly connected to the middle part of one side of the movable plate 4, and the fixed block 8 is fixedly connected to a cylinder 9 away from the side of the movable plate 4, a spring 10 is provided inside the cylinder 9, one end of the spring 10 is fixedly connected to the fixed block 8, and the other end of the spring 10 is fixedly connected to a connecting rod 11, and the connecting rod 11 is movably sleeved with the cylinder 9, and the end of the connecting rod 11 away from the spring 10 is fixedly connected to an extrusion plate 12, and the connecting rod 11 is fixedly connected to both sides of the end of the spring 10, and sliding rods 13 are fixedly connected to both sides of the cylinder 9. Slide grooves 14 are provided on the surface of both sides of the cylinder 9, and the two slide rods 13 are slidably connected to the cylinder 9 through two slide grooves 14 respectively; In this embodiment, the two sliding rods 13 and the sliding groove 14 can limit the connecting rod 11 to prevent the connecting rod 11 from being separated from the cylinder 9.

[0023] In order to facilitate the activity, the device is implemented by adopting the following technical solutions: the top cross section of the movable plate 4 is arc-shaped, and the movable plate 4 matches the open slot 2; Among them, in order to achieve the purpose of facilitating extrusion, the device is implemented by adopting the following technical solutions: the extrusion plate 12 is in a circular hemispherical shape; Among them, in order to achieve the purpose of absorbing solution, the device is implemented by the following technical scheme: through openings 15 are opened on the top and bottom surfaces of the sleeve 1, and the through opening 15 at the bottom is smaller than the through opening 15 at the top. A support rod 16 is fixedly connected to one side of the bottom of the sleeve 1, and a collar 17 is fixedly connected to the bottom of the support rod 16. A dropper 18 is arranged in the sleeve 1, and a scale is arranged on the dropper 18. The bottom of the dropper 18 extends into the collar 17 and contacts the inner wall of the collar 17. The dropper 18 is a prior art, which is composed of a rubber latex sleeve at the top and a pointed glass tube at the bottom. The bottom of the collar 17 is integrally formed with a screw thread. A connecting nozzle 19 is arranged at the bottom of the collar 17. The top of the connecting nozzle 19 is threadedly connected to the collar 17. A capillary 20 is fixedly connected to the bottom of the connecting nozzle 19. The capillary 20 is connected to the inside of the connecting nozzle 19. There are multiple connecting nozzles 19, which are respectively connected with capillaries 20 of various specifications for easy use of spotting. Among them, in order to achieve the purpose of improving the comfort of use, the present device is implemented by the following technical solution: a plurality of protrusions 21 are provided on the surface of the sleeve 1 away from the opening groove 2, and the plurality of protrusions 21 are evenly distributed, and a protective pad 22 is fixedly embedded on the side of the movable plate 4 away from the fixed block 8.

[0024] The use process of the present invention is as follows: when using the present invention, the user first inserts the dropper 18 along the opening 15 at the top of the sleeve 1. Since the bottom opening 15 is smaller than the top opening 15, the rubber latex sleeve at the top of the dropper 18 remains in the sleeve 1, and the glass tube at the bottom extends into the inside of the ring 17 and contacts the inner wall of the ring 17. Then, the connecting nozzle 19 connected to the capillary tube 20 of the required specifications is tightened along the thread at the bottom of the ring 17. Then, the user keeps the dropper 18 vertically above the container to avoid tilting. Then, the protective pad 22 and the movable plate 4 are pressed with fingers, so that the movable plate 4 and the connecting block 5 can rotate toward the sleeve 1 along the rotating rod 6, and at the same time, the squeezing plate 12 is driven to squeeze the rubber latex sleeve to drive out the air in the dropper 18, and the connecting rod 11 is driven to slide in the cylinder 9 and squeeze the spring 10, and at the same time, the two slide bars 13 are driven to slide in the two slide grooves 14 respectively, until the movable plate 4 reaches the maximum rotation when the connecting block 5 rotates to the position of the baffle 7, and then the user extends the capillary 20 into the solution bottle 23, as shown in FIG. Figure 2 As shown, release the pressing movable plate 4, the solution in the solution bottle 23 is sucked into the capillary 20, and then the sample solution is dripped onto the surface of the thin layer plate to complete the spotting work.

[0025] The above is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A multi-specification handheld sample spotter capable of accurately sampling, comprising a sleeve (1), characterized in that: An open groove (2) is provided on the surface of one side of the sleeve (1), a through groove (3) is provided on the inner bottom wall of the open groove (2), and an extrusion mechanism is provided on one side of the sleeve (1); The extrusion mechanism comprises a movable plate (4) and a connecting block (5); the bottom of the movable plate (4) is fixedly connected to the top of the connecting block (5); both ends of the bottom of the connecting block (5) are fixedly connected to rotating rods (6); both ends of the inner wall of the through slot (3) are provided with circular grooves; the two rotating rods (6) are rotatably connected to the sleeve (1) through the two circular grooves; both ends of the inner wall of the through slot (3) are fixedly connected to baffles (7); the middle part of one side of the movable plate (4) is fixedly connected to a fixed block (8); the fixed block (8) is fixedly connected to a cylinder (9) on a side away from the movable plate (4); the cylinder (9 ) is provided with a spring (10) inside, one end of the spring (10) is fixedly connected to the fixed block (8), the other end of the spring (10) is fixedly connected to a connecting rod (11), the connecting rod (11) is movably sleeved with the cylinder (9), the end of the connecting rod (11) away from the spring (10) is fixedly connected to an extrusion plate (12), and both sides of the connecting rod (11) close to the spring (10) are fixedly connected to sliding rods (13), and the surfaces of both sides of the cylinder (9) are provided with sliding grooves (14), and the two sliding rods (13) are slidably connected to the cylinder (9) through two sliding grooves (14) respectively.

2. A multi-specification handheld sample spotter capable of accurate sampling according to claim 1, characterized in that: The top cross-section of the movable plate (4) is arc-shaped, and the movable plate (4) matches the opening slot (2).

3. A multi-specification handheld sample spotter capable of accurate sampling according to claim 1, characterized in that: The extrusion plate (12) is in the shape of a circular hemisphere.

4. A multi-specification handheld sample spotter capable of accurate sampling according to claim 1, characterized in that: The top and bottom surfaces of the sleeve (1) are both provided with through openings (15), and the through opening (15) at the bottom is smaller than the through opening (15) at the top.

5. A multi-specification handheld sample spotter capable of accurate sampling according to claim 4, characterized in that: A support rod (16) is fixedly connected to one side of the bottom of the sleeve (1), and a collar (17) is fixedly connected to the bottom of the support rod (16).

6. A multi-specification handheld sample spotter capable of accurate sampling according to claim 5, characterized in that: A dropper (18) is provided in the sleeve (1), a scale is provided on the dropper (18), and the bottom of the dropper (18) extends into the collar (17) and contacts the inner wall of the collar (17).

7. A multi-specification handheld sample spotter capable of accurate sampling according to claim 6, characterized in that: The bottom of the collar (17) is integrally formed with a screw thread, the bottom of the collar (17) is provided with a connecting nozzle (19), and the top of the connecting nozzle (19) is threadedly connected to the collar (17).

8. The multi-specification handheld sample spotter capable of accurate sampling according to claim 7, characterized in that: A capillary tube (20) is fixedly connected to the bottom of the connection nozzle (19), and the capillary tube (20) is connected to the interior of the connection nozzle (19).

9. The multi-specification handheld sample spotter capable of accurate sampling according to claim 1, characterized in that: A plurality of protrusions (21) are provided on a surface of the sleeve (1) on one side away from the opening groove (2), and the plurality of protrusions (21) are distributed at equal intervals.

10. The multi-specification handheld spotter capable of accurate sampling according to claim 1, characterized in that: A protective pad (22) is fixedly embedded on the side of the movable plate (4) away from the fixed block (8).

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