Single-tube cover closing device

Abstract

The utility model discloses a single-tube cover closing device, which relates to the technical field of laboratory auxiliary supplies, and comprises a cover closing device body and a pressing plate, at least twenty-four mold holes are formed in the upper surface of the cover closing device body in a penetrating manner, the mold holes are symmetrically distributed relative to the center line of the cover closing device body, and concave platforms are formed at the upper ends of the interiors of the mold holes; the left side and the right side of the upper surface of the cover closing device body are each fixedly connected with two extending plates, the front side and the rear side of each extending plate are each fixedly connected with a rotating support, a rotating shaft is fixedly connected between the two rotating supports, the left side and the right side of the cover closing device body are each rotationally connected with a rotating block through the rotating shaft, and the tail ends of the two rotating blocks are each fixedly connected with a pressing cover. The bottom faces of the pressing covers are provided with pressing protrusions corresponding to the mold holes, and the front side faces and the rear side faces of the two pressing covers are fixedly connected with ear handles. The device has the advantages that a plurality of PCR tube covers can be closed in batches, the closing speed and efficiency of the covers are greatly improved, and the operation time is saved.

Description

Technical Field

[0001] The utility model belongs to the field of laboratory auxiliary supplies, and in particular relates to a single-tube cover closer. Background Art

[0002] Polymerase chain reaction (PCR) is a molecular biology technique used to amplify specific deoxyribonucleic acid (DNA) fragments. It can be seen as a special DNA replication outside the body. The biggest feature of PCR is that it can greatly increase trace amounts of DNA. In PCR molecular laboratory testing, PCR single-tube consumables are needed for PCR-related experimental techniques. When PCR single-tube consumables are newly purchased, the lid is open, but usually the experimental requirement is to close the lid of the PCR single tube before the experiment, when there is free time, and then mark the lid to prepare for subsequent experiments.

[0003] Currently, laboratories close the lids of PCR tubes one by one by pressing them with the thumb. This is very time-consuming and inefficient when processing a large number of samples. Long-term repetitive operations can easily lead to operator fatigue and increase the possibility of mistakes, such as forgetting to close the lid or not fully tightening it. Summary of the invention

[0004] The utility model aims to provide a novel, convenient and efficient single-tube cover closer.

[0005] The technical solution is as follows:

[0006] A single-tube cover closer comprises a cover closer body and a pressing plate, a plurality of mould holes are provided on the upper surface of the cover closer body, the mould holes are symmetrically distributed about the midline of the cover closer body, a recess is provided at the inner upper end of the mould hole, two pressing covers are rotatably connected to the cover closer body, the bottom surfaces of the pressing covers are provided with pressing protrusions corresponding to the mould holes, ear handles are fixedly connected to the front and rear sides of the two pressing covers, limiting grooves equal in number to the mould holes are provided on the upper surface of the cover closer body, the limiting grooves are connected to the mould holes, ejection holes are provided inside the cover closer body and penetrate through the bottom of the mould holes; the pressing plate is arranged at the bottom of the cover closer body, the upper surface of the pressing plate is fixedly connected with ejection posts equal in number to the mould holes, and the top ends of the ejection posts extend into the interior of the ejection holes.

[0007] In one of the embodiments, two extension plates are fixedly connected to the left and right sides of the upper surface of the cover closer body, and the front and rear sides of the extension plates are fixedly connected to rotating supports, a rotating shaft is fixedly connected between the two rotating supports, and the left and right sides of the cover closer body are rotatably connected to rotating blocks through the rotating shaft, and the ends of the two rotating blocks are fixedly connected to the clamping cover.

[0008] In one embodiment, the bottom of the front and rear sides of the cover closer body are provided with plug-in slots, and the front and rear sides of the upper surface of the pressure plate are fixedly connected with plug-in strips, and the plug-in strips are slidably connected to the inside of the plug-in slots.

[0009] In one embodiment, chamfers are formed at the lower ends of the two insertion slots.

[0010] In one embodiment, the cover closer body is made of polyethylene terephthalate, high-density polyethylene, polyvinyl chloride, polypropylene or polystyrene.

[0011] In one embodiment, the number of the pressing protrusions on the bottom of the pressing cover is half the number of the mold holes.

[0012] In one embodiment, the shape of the cover closer body is the same as that of the pressing plate, and the size of the cover closer body and the pressing plate are also the same.

[0013] In one embodiment, the cross section of the pressing protrusion is arc-shaped.

[0014] In one embodiment, the cover closer body is rectangular in shape.

[0015] In one embodiment, the diameter of the concave platform is larger than the diameter of the die hole, and the depth of the concave platform is one fifth to one quarter of the depth of the die hole.

[0016] The technical solution provided by the utility model has the following advantages and effects:

[0017] 1. The cap closer can close multiple PCR tube caps in batches by placing a single PCR tube into the designed mold hole, using the pressure of the pressing protrusion and pinching the ear handles with both hands at the same time, which greatly improves the speed and efficiency of cap closing and saves operation time. It is relatively easy to operate by pinching the ear handles with both hands, which is not easy to cause operator fatigue and reduces human errors that may be caused by long-term operation.

[0018] 2. By using this cover closer, the inspection technician no longer needs to use the thumb to press, and the fingers will no longer feel pain.

[0019] 3. The well-designed mold holes and pressing protrusions can ensure that the closing pressure and sealing of each PCR single tube cover are basically consistent, thereby improving the consistency and accuracy of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the cover closer body in an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the pressing plate structure in an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the bottom structure of the cover closer body in an embodiment of the utility model;

[0024] Figure 5 for Figure 2 A local enlarged schematic diagram of the middle A;

[0025] Figure 6 It is a schematic diagram of the compression cover structure in the embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Cover closer body; 2. Extension plate; 3. Rotating support; 4. Rotating shaft; 5. Rotating block; 6. Pressing cover; 7. Ear handle; 8. Pressing protrusion; 9. Mold hole; 10. Concave platform; 11. Plug-in groove; 12. Chamfer; 13. Pressing plate; 14. Ejection column; 15. Plug-in strip; 16. Ejection hole; 17. Limiting groove. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0029] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0030] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0032] like Figure 1 - Figure 6The single-tube cover closer shown in the figure comprises a cover closer body 1 and a pressing plate 13. The upper surface of the cover closer body 1 is provided with at least twenty-four mold holes 9, and the mold holes 9 are symmetrically distributed about the center line of the cover closer body 1. A concave platform 10 is provided at the inner upper end of the mold hole 9. Two extension plates 2 are fixedly connected to the left and right sides of the upper surface of the cover closer body 1. The front and rear sides of the extension plate 2 are fixedly connected to a rotating support 3. A rotating shaft 4 is fixedly connected between the two rotating supports 3. The cover closer body The left and right sides of the body 1 are rotatably connected with rotating blocks 5 through the rotating shaft 4, and the ends of the two rotating blocks 5 are fixedly connected with clamping covers 6. The bottom surface of the clamping covers 6 is provided with clamping protrusions 8 corresponding to the mold holes 9, and the front and rear sides of the two clamping covers 6 are fixedly connected with ear handles 7. The upper surface of the cover closer body 1 is provided with limiting grooves 17 with the same number as the mold holes 9, and the limiting grooves 17 are communicated with the mold holes 9, and ejection holes 16 are opened inside the cover closer body 1 and penetrate the bottom of the mold holes 9.

[0033] Please refer to Figure 1 As shown, the pressing plate 13 is arranged at the bottom of the cover closer body 1, and the upper surface of the pressing plate 13 is fixedly connected with ejector posts 14 having the same number as the mold holes 9, and the top ends of the ejector posts 14 extend into the interior of the ejector holes 16. The ejector posts 14 are fixedly connected to the pressing plate 13 and extend into the interior of the ejector holes 16. When the pressing plate 13 rises, the ejector posts 14 will eject the PCR single tube from the mold hole 9, making it convenient to take out the PCR tube with the lid on.

[0034] Please refer to Figure 2 and Figure 4 As shown, the bottom of the front and rear sides of the cover closer body 1 are provided with plug-in grooves 11, and the front and rear sides of the upper surface of the pressure plate 13 are fixedly connected with plug-in strips 15, which are slidably connected to the inside of the plug-in grooves 11. The plug-in strips 15 are slidably connected to the inside of the plug-in grooves 11, so that the pressure plate 13 can be easily installed and disassembled, and is convenient for maintenance and replacement.

[0035] Please refer to Figure 2 As shown, chamfers 12 are provided at the lower ends of the two plug-in slots 11. The chamfers 12 can guide the plug-in strips 15 to enter the plug-in slots 11 more smoothly, thereby increasing the convenience of installation.

[0036] Please refer to Figure 1 As shown, the cover closer body 1 is made of polyethylene terephthalate or high-density polyethylene or polyvinyl chloride or polypropylene or polystyrene. The use of the above materials ensures that it has high strength, corrosion resistance, wear resistance and service life.

[0037] Please refer to Figure 3 As shown, the number of the pressing protrusions 8 at the bottom of the pressing cover 6 is half the number of the die holes 9 .

[0038] Please refer to Figure 1 and Figure 4 As shown, the shape of the cover closer body 1 is the same as that of the pressing plate 13, and the size of the cover closer body 1 and the pressing plate 13 are also the same, which ensures the matching and stability between the two.

[0039] Please refer to Figure 3 As shown, the cross section of the pressing protrusion 8 is arc-shaped, and the arc-shaped structure can better contact with the PCR cover.

[0040] Please refer to Figure 1 and Figure 2 As shown, the cover closer body 1 is in the shape of a rectangle.

[0041] Please refer to Figure 2 As shown, the diameter of the recess 10 is larger than the diameter of the mold hole 9, and the depth of the recess 10 is one-fifth to one-quarter of the depth of the mold hole 9. The setting of the recess 10 can make the PCR tube placed in the mold hole 9 more stable, and the PCR tube is not easy to shake or decentered when force is applied to squeeze the PCR cover.

[0042] Working principle: When in use, first place the PCR single tube in the mold hole 9, then place the connection between the PCR single tube cover and the single tube in the limiting groove 17, then rotate the clamping cover 6 to make the clamping protrusion 8 contact the upper surface of the cover of the PCR single tube, then hold the ear handle 7 with both hands and apply downward force, so that all the PCR single tube covers placed in the mold hole 9 can be tightly closed by the clamping protrusion 8, then insert the plug-in strip 15 into the plug-in groove 11, so that the ejection column 14 enters the mold hole 9, and then press the cover closer body 1 downward, the ejection column 14 can eject the PCR single tube, and then flip the cover closer body 1, and the PCR single tube inside the mold hole 9 will automatically fall out.

[0043] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. Single tube cover closer, characterized in that: It includes a cover closer body and a pressing plate, the upper surface of the cover closer body is provided with a plurality of mold holes, the mold holes are symmetrically distributed about the center line of the cover closer body, a concave platform is provided at the inner upper end of the mold hole, two pressing covers are rotatably connected to the cover closer body, the bottom surfaces of the pressing covers are provided with pressing protrusions corresponding to the mold holes, the front and rear sides of the two pressing covers are fixedly connected with ear handles, the upper surface of the cover closer body is provided with limiting grooves with the same number as the mold holes, the limiting grooves are connected with the mold holes, and ejection holes are provided inside the cover closer body and penetrate through the bottom of the mold holes; the pressing plate is arranged at the bottom of the cover closer body, the upper surface of the pressing plate is fixedly connected with ejection columns with the same number as the mold holes, and the top ends of the ejection columns extend into the interior of the ejection holes.

2. The single tube cover closer according to claim 1, characterized in that: Two extension plates are fixedly connected to the left and right sides of the upper surface of the cover closer body, and rotating supports are fixedly connected to the front and rear sides of the extension plates. A rotating shaft is fixedly connected between the two rotating supports. Rotating blocks are rotatably connected to the left and right sides of the cover closer body through the rotating shaft, and the ends of the two rotating blocks are fixedly connected to the clamping cover.

3. The single tube cover closer according to claim 1, characterized in that: The bottoms of the front and rear sides of the cover closer body are provided with plug-in slots, and the front and rear sides of the upper surface of the pressing plate are fixedly connected with plug-in strips, which are slidably connected to the inside of the plug-in slots.

4. The single tube cover closer according to claim 3, characterized in that: The lower ends of the two inserting slots are provided with chamfers.

5. The single tube cover closer according to any one of claims 1 to 4, characterized in that: The material of the cover closer body is polyethylene terephthalate, high-density polyethylene, polyvinyl chloride, polypropylene or polystyrene.

6. The single tube cover closer according to any one of claims 1 to 4, characterized in that: The number of the pressing protrusions on the bottom of the pressing cover is half the number of the mold holes.

7. The single tube cover closer according to any one of claims 1 to 4, characterized in that: The shape of the cover closer body is the same as that of the pressing plate, and the size of the cover closer body and the pressing plate are also the same.

8. The single tube cover closer according to any one of claims 1 to 4, characterized in that: The cross section of the pressing protrusion is in an arc shape.

9. The single tube cover closer according to any one of claims 1 to 4, characterized in that: The shape of the cover closer body is rectangular.

10. The single tube cover closer according to any one of claims 1 to 4, characterized in that: The diameter of the concave platform is greater than the diameter of the die hole, and the depth of the concave platform is one fifth to one quarter of the depth of the die hole.

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