Automatic centrifugal tube screwing device

Abstract

The utility model relates to the field of automatic medical detection, in particular to an automatic centrifugal tube screwing device. Comprising a lifting mechanism, the output end of the lifting mechanism is fixedly connected with a lifting plate, and the lifting plate extends in the horizontal direction; a first translation mechanism and a second translation mechanism are arranged at the two ends of the lifting plate in the horizontal direction correspondingly, can stretch out and draw back in the horizontal direction and are opposite in movement direction. The output end of the first translation mechanism and the output end of the second translation mechanism are connected with a translation plate, and a lifting mechanism is arranged at the lower end of the translation plate and can stretch out and draw back in the vertical direction. The output end of the lifting mechanism is fixedly connected with a lifting plate, and the lifting plate extends in the horizontal direction. The two ends, in the vertical direction, of the clamping mechanism are hinged to the translation plate and the lifting plate correspondingly, and the clamping mechanism is used for clamping a tube cover of the centrifugal tube. Automatic screwing is achieved, working efficiency is improved, and experiment safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of automated medical detection, in particular to an automatic centrifuge tube screwing device. Background Art

[0002] Opening the cap of a centrifuge tube is a problem that medical staff or scientific researchers must face. At present, most centrifuge tubes are opened by manual twisting. Centrifuge tubes are usually neatly arranged on a centrifuge tube stand. When adding reagents or extracting components to the centrifuge tube, the cap of the centrifuge tube needs to be opened manually. The manual twisting working method undoubtedly increases the chance of medical staff being exposed to viruses and the chance of scientific researchers being exposed to harmful substances. In addition, with the increase in the number of centrifuge tubes, the workload and work intensity of relevant personnel are undoubtedly increased. Repetitive and boring work will make scientific researchers and medical workers feel boring and disgusted. Utility Model Content

[0003] The utility model aims to provide a centrifuge tube automatic screwing device which does not need to be opened manually.

[0004] To achieve the above-mentioned purpose, the utility model provides an automatic screwing device for centrifuge tubes, comprising: a lifting mechanism, wherein the output end of the lifting mechanism is fixedly connected to a lifting plate, and the lifting plate extends in the horizontal direction; a first translation mechanism and a second translation mechanism are respectively provided at both ends of the lifting plate in the horizontal direction, and the first translation mechanism and the second translation mechanism can be extended and retracted in the horizontal direction and have opposite movement directions; the output ends of the first translation mechanism and the second translation mechanism are connected to the translation plate, and the lower end of the translation plate is provided with a lifting mechanism, and the lifting mechanism can be extended and retracted in the vertical direction; the output end of the lifting mechanism is fixedly connected to the lifting plate, and the lifting plate extends in the horizontal direction;

[0005] A clamping mechanism, wherein both ends of the clamping mechanism along the vertical direction are respectively hinged to the translation plate and the lifting plate, and the clamping mechanism is used to clamp the tube cover of the centrifuge tube.

[0006] Optionally, the lifting mechanism includes a lifting motor, a lifting coupling and a lifting ball screw; the lifting motor, the lifting coupling and the lifting ball screw are connected in series to form an axis system, and one end of the lifting ball screw away from the lifting motor is fixedly connected to the lifting plate.

[0007] Optionally, the translation mechanism includes a translation motor, a translation coupling and a translation mechanism ball screw; the translation motor, the translation mechanism coupling and the translation mechanism ball screw are connected in series to form an axis system, and one end of the translation mechanism ball screw away from the translation motor is fixedly connected to the translation plate.

[0008] Optionally, the lifting mechanism includes a lifting motor, a lifting mechanism coupling and a lifting ball screw; the lifting motor, the lifting coupling and the lifting ball screw are connected in series to form a shaft system, and one end of the lifting ball screw away from the lifting motor is fixedly connected to the lifting plate.

[0009] Optionally, the clamping mechanism includes a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm are arranged in a one-to-one correspondence.

[0010] Optionally, the first clamping arm includes a first clamping hinge, a second clamping hinge, a first clamping link, a second clamping link, a third clamping link and a clamping head;

[0011] The fixed end of the first clamping hinge is connected to the translation plate, and the hinged end is connected to the first clamping link; the fixed end of the second clamping hinge is connected to the lifting plate, and the hinged end is connected to the third clamping link; the first clamping link, the second clamping link and the third clamping link are connected in series in sequence; the chuck is provided at one end of the third clamping link close to the centrifuge tube, and the chuck extends in the horizontal direction and can be tangent to the tube cover of the centrifuge tube.

[0012] Optionally, one end of the third clamping link close to the tube cover of the centrifuge tube is bent toward one side of the tube cover of the centrifuge tube at a set angle.

[0013] Optionally, the chuck is provided with serrations.

[0014] Optionally, the hinged end of the second clamping hinge is connected to the middle portion of the third clamping link.

[0015] Optionally, the lifting mechanism may also adopt other driving modes such as an electric push rod, a hydraulic cylinder, etc.

[0016] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0017] The automatic screwing device for centrifuge tubes provided by the utility model provides a lifting force for the overall device to move up and down through a lifting mechanism, so that the overall device can move up and down. In the early stage of screwing the tube cover of the centrifuge tube, the lifting mechanism moves the overall device downward so that the clamping mechanism is close to the centrifuge tube. The lifting mechanism realizes the action of the clamping mechanism, thereby realizing the clamping function. In the process of screwing the tube cover of the centrifuge tube, the first translation mechanism and the second translation mechanism move in opposite directions so that the tube cover rotates and then detaches from the centrifuge tube, thereby realizing the automatic screwing operation of the screwing function of the tube cover of the centrifuge tube. It not only greatly reduces the manual labor of medical personnel, optimizes the experimental process, and greatly improves the experimental efficiency. Moreover, when handling potentially hazardous substances, it can significantly reduce the exposure risk of medical personnel and improve experimental safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a schematic structural diagram of the automatic centrifuge tube screwing device according to an embodiment of the utility model;

[0021] Figure 2 For the embodiment of the utility model Figure 1 Schematic diagram of the left view;

[0022] Figure 3 This is a schematic diagram of the structure of the clamping mechanism according to an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the centrifuge tube structure described in an embodiment of the utility model;

[0024] Figure 5 The present invention is a schematic diagram of the process of screwing the tube cover of the centrifuge tube according to the embodiment of the present invention.

[0025] Among them, 1. lifting mechanism; 11. lifting motor; 12. lifting coupling; 13. lifting ball screw; 2. lifting plate; 3. first translation mechanism; 31. first translation motor; 32. first translation coupling; 33. first translation ball screw; 4. second translation mechanism; 5. translation plate; 6. lifting mechanism; 61. lifting motor; 62. lifting coupling; 63. lifting ball screw; 7. lifting plate; 8. clamping mechanism; 81. first clamping arm; 811. first clamping hinge; 812. second clamping hinge; 813. first clamping link; 814. second clamping link; 815. third clamping link; 816. chuck; 82. second clamping arm; 9. centrifuge tube; 91. tube cover. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] The centrifuge tube automatic screwing device is described in detail below through specific embodiments:

[0029] like Figure 1 and Figure 2 As shown, the present invention provides a centrifuge tube automatic screwing device, comprising:

[0030] A lifting mechanism 1, the output end of which is fixedly connected to a lifting plate 2, which extends in the horizontal direction. A first translation mechanism 3 and a second translation mechanism 4 are respectively provided at both ends of the lifting plate 2 in the horizontal direction, and the first translation mechanism 3 and the second translation mechanism 4 can be extended and retracted in the horizontal direction and in opposite directions. A translation plate 5 is connected to the output ends of the first translation mechanism 3 and the second translation mechanism 4, and a lifting mechanism 6 is provided at the lower end of the translation plate 5, and the lifting mechanism 6 can be extended and retracted in the vertical direction. A lifting plate 7 is fixedly connected to the output end of the lifting mechanism 6, and the lifting plate 7 extends in the horizontal direction.

[0031] The clamping mechanism 8 has two ends in the vertical direction which are respectively hinged to the translation plate 5 and the lifting plate 7 . The clamping mechanism 8 is used to clamp the tube cover 91 of the centrifuge tube 9 .

[0032] The lifting device can be any structure with lifting function. The lifting mechanism 1 can move the device up and down as a whole, so that the automatic screwing device is away from or close to the centrifuge tube 9. The lifting plate 2 can be a structure with baffles at both ends, and the first translation mechanism 3 and the second translation mechanism 4 can be respectively set on the baffles at both ends. The first translation mechanism 3 and the second translation mechanism 4 are arranged relative to each other and can be horizontally retracted. The first translation mechanism 3 and the second translation mechanism 4 move in opposite directions. That is to say, the first translation mechanism 3 and the second translation mechanism 4 move towards each other, and the first translation mechanism 3 and the second translation mechanism 4 can have the same structure. It can be understood that the first translation mechanism 3 and the second translation mechanism 4 are arranged on the same horizontal line. Further, baffles can be respectively set at both ends of the translation plate 5, and the output ends of the first translation mechanism 3 and the second translation mechanism 4 can be connected to the baffles. It can be understood that the translation plate 5 can move relative to each other, and the first translation plate 5 can be connected to the first translation mechanism 3, and the second translation plate 5 can be connected to the second translation mechanism 4. The first translation plate 5 can be completely the same as the second translation plate 5. The lifting mechanism 6 can be of any structure as long as it can generate displacement that moves up and down. The structure of the lifting mechanism 6 can be the same as that of the lifting mechanism 1. Two rows of lifting mechanisms 6 can be set on the translation plate 5, and the two rows of lifting mechanisms 6 are set one by one. Two lifting mechanisms 6 can also be set at both ends of the translation plate 5, and the two lifting mechanisms 6 at one end of the translation plate 5 are set correspondingly. Thereby, the clamping mechanism 8 can be connected more stably, so that the clamping mechanism 8 can remain horizontal and in the same contact position with the tube cover 91 of the centrifuge tube 9, so that the tube cover 91 of the centrifuge tube 9 is subjected to the same force and the screwing effect is consistent.

[0033] The clamping mechanism 8 may be a clamping structure with a clamping function, one end of the clamp is hinged to the translation plate 5, and the other end is hinged to the lifting plate 7. The clamping mechanism 8 can rotate relative to the translation plate 5 and the lifting plate 7, so that the clamping mechanism 8 can clamp or loosen the pipe cover 91.

[0034] The automatic screwing device for centrifuge tubes provided by the utility model provides a lifting force for the overall device to move up and down through the lifting mechanism 1, so that the overall device can move up and down. In the early stage of screwing the tube cover 91 of the centrifuge tube 9, the lifting mechanism 1 moves the overall device downward so that the clamping mechanism 8 is close to the centrifuge tube 9. The lifting mechanism 6 realizes the action of the clamping mechanism 8, thereby realizing the clamping function. In the process of screwing the tube cover 91 of the centrifuge tube 9, the first translation mechanism 3 and the second translation mechanism 4 move in opposite directions so that the tube cover 91 rotates and then detaches from the centrifuge tube 9, thereby realizing the automatic screwing operation of the screwing function of the tube cover 91. It not only greatly reduces the manual labor of medical personnel, optimizes the experimental process, and greatly improves the experimental efficiency. Moreover, when handling potentially hazardous substances, it can significantly reduce the exposure risk of medical personnel and improve experimental safety.

[0035] Furthermore, the lifting mechanism 1 includes a lifting motor 11, a lifting coupling 12 and a lifting ball screw 13. The lifting motor 11, the lifting coupling 12 and the lifting ball screw 13 are connected in series to form a shaft system, and the end of the lifting ball screw 13 away from the lifting motor 11 is fixedly connected to the lifting plate 2.

[0036] The above-mentioned series connection into a shaft system means that the output end of the lifting motor 11 is connected to the input end of the lifting coupling 12, and the output end of the lifting coupling 12 is connected to the input end of the lifting ball screw 13. Therefore, when the lifting motor 11 is running, the lifting ball screw 13 is driven to extend and retract through the lifting coupling 12, thereby driving the lifting plate 2 to move up and down.

[0037] Furthermore, the first translation mechanism 3 includes a first translation motor 31, a first translation coupling 32 and a first translation ball screw 33. The first translation motor 31, the first translation coupling 32 and the first translation ball screw 33 are connected in series to form a shaft system, and one end of the first translation ball screw 33 away from the first translation motor 31 is fixedly connected to the translation plate 5.

[0038] The above-mentioned series connection of the shaft system can be the same as the series connection of the lifting mechanism 1, and the structures of the first translation mechanism 3 and the second translation mechanism 4 can be completely the same.

[0039] In addition, the lifting mechanism 6 includes a lifting motor 61, a lifting coupling 62 and a lifting ball screw 63. The lifting motor 61, the lifting coupling 62 and the lifting ball screw 63 are connected in series to form a shaft system, and one end of the lifting ball screw 63 away from the lifting motor 61 is fixedly connected to the lifting plate 7.

[0040] The serial connection mode of the lifting mechanism 6 can be the same as that of the lifting mechanism 1. A plurality of lifting mechanisms 6 can be provided, and the plurality of lifting mechanisms 6 are provided on the same horizontal line.

[0041] like Figure 2 and Figure 3 As shown, the clamping mechanism 8 includes a first clamping arm 81 and a second clamping arm 82 , and the first clamping arm 81 and the second clamping arm 82 are arranged in a one-to-one correspondence.

[0042] The structure of the first clamping arm 81 can be completely the same as that of the second clamping arm 82. One-to-one arrangement means that the first clamping arm 81 and the second clamping arm 82 are arranged relative to each other, so that the first clamping arm 81 and the second clamping arm 82 can clamp the tube cover 91 of the centrifuge tube 9.

[0043] Further, the first clamping arm 81 includes a first clamping hinge 811 , a second clamping hinge 812 , a first clamping link 813 , a second clamping link 814 , a third clamping link 815 and a clamping head 816 .

[0044] The fixed end of the first clamping hinge 811 is connected to the translation plate 5, and the hinged end is connected to the first clamping link 813. The fixed end of the second clamping hinge 812 is connected to the lifting plate 7, and the hinged end is connected to the third clamping link 815. The first clamping link 813, the second clamping link 814 and the third clamping link 815 are connected in series in sequence. The end of the third clamping link 815 close to the centrifuge tube 9 is provided with a chuck 816, which extends in the horizontal direction and can be tangent to the tube cover 91 of the centrifuge tube 9.

[0045] The fixed end of the first clamping hinge 811 can be connected to the translation plate 5 by bolt connection, and the hinged end is connected to the end of the first clamping link 813. The end of the first clamping link 813 away from the first clamping hinge 811 is rotatably connected to the end of the second clamping link 814. The end of the second clamping link 814 away from the first clamping link 813 is rotatably connected to the end of the third clamping link 815, and the other end of the third clamping link 815 is fixedly connected with a clamp 816. Of course, the number of clamping links can be set as needed. Therefore, when the lifting mechanism 6 is lowered, the first clamping arm 81 and the second clamping arm 82 are rotated and extended, so that the third clamping link 815 contacts and clamps the pipe cover 91.

[0046] Furthermore, one end of the third clamping link 815 close to the tube cover 91 of the centrifuge tube 9 is bent at a set angle toward one side of the tube cover 91 of the centrifuge tube 9, so that the contact area between the clamp 816 and the tube cover 91 is increased, thereby making the clamping more stable and facilitating the subsequent screwing.

[0047] like Figure 4 and Figure 5 As shown, the clamping head 816 is provided with serrations.

[0048] The serrations can increase the friction between the clamp 816 and the tube cover 91, preventing the clamp 816 from slipping and falling off during the screwing process. Of course, corrugated serrations can also be provided on the peripheral side of the tube cover 91 to further increase the friction. A serrated rubber pad can also be provided at the clamp 816 to increase the friction.

[0049] In some embodiments, the hinged end of the second clamping hinge 812 is connected to the middle of the third clamping link 815. On the one hand, the third clamping link 815 can be supported to be in a balanced state. On the other hand, the third clamping link 815 can be evenly stressed.

[0050] In some other embodiments, the lifting mechanism 1 may also adopt other driving modes such as electric push rods, hydraulic cylinders, etc.

[0051] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0052] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A centrifuge tube automatic screwing device, characterized in that: include: A lifting mechanism (1), wherein the output end of the lifting mechanism (1) is fixedly connected to a lifting plate (2), and the lifting plate (2) extends in a horizontal direction; a first translation mechanism (3) and a second translation mechanism (4) are respectively provided at two ends of the lifting plate (2) in the horizontal direction, and the first translation mechanism (3) and the second translation mechanism (4) can be extended and retracted in the horizontal direction and have opposite movement directions; the output ends of the first translation mechanism (3) and the second translation mechanism (4) are connected to a translation plate (5), and the lower end of the translation plate (5) is provided with a lifting mechanism (6), and the lifting mechanism (6) can be extended and retracted in a vertical direction; the output end of the lifting mechanism (6) is fixedly connected to a lifting plate (7), and the lifting plate (7) extends in a horizontal direction; A clamping mechanism (8), wherein the two ends of the clamping mechanism (8) along the vertical direction are respectively hinged to the translation plate (5) and the lifting plate (7), and the clamping mechanism (8) is used to clamp the tube cover (91) of the centrifuge tube (9).

2. The automatic centrifuge tube screwing device according to claim 1, characterized in that: The lifting mechanism (1) comprises a lifting motor (11), a lifting coupling (12) and a lifting ball screw (13); the lifting motor (11), the lifting coupling (12) and the lifting ball screw (13) are connected in series to form a shaft system, and one end of the lifting ball screw (13) away from the lifting motor (11) is fixedly connected to the lifting plate (2).

3. The automatic centrifuge tube screwing device according to claim 1, characterized in that: The first translation mechanism (3) comprises a first translation motor (31), a first translation coupling (32) and a first translation ball screw (33); the first translation motor (31), the first translation coupling (32) and the first translation ball screw (33) are connected in series to form a shaft system, and one end of the first translation ball screw (33) away from the first translation motor (31) is fixedly connected to the translation plate (5).

4. The automatic centrifuge tube screwing device according to claim 1, characterized in that: The lifting mechanism (6) comprises a lifting motor (61), a lifting coupling (62) and a lifting ball screw (63); the lifting motor (61), the lifting coupling (62) and the lifting ball screw (63) are connected in series to form a shaft system, and one end of the lifting ball screw (63) away from the lifting motor (61) is fixedly connected to the lifting plate (7).

5. The automatic centrifuge tube screwing device according to claim 1, characterized in that: The clamping mechanism (8) comprises a first clamping arm (81) and a second clamping arm (82), and the first clamping arm (81) and the second clamping arm (82) are arranged in a one-to-one correspondence.

6. The automatic centrifuge tube screwing device according to claim 5, characterized in that: The first clamping arm (81) comprises a first clamping hinge (811), a second clamping hinge (812), a first clamping link (813), a second clamping link (814), a third clamping link (815) and a clamping head (816); The fixed end of the first clamping hinge (811) is connected to the translation plate (5), and the hinged end is connected to the first clamping link (813); the fixed end of the second clamping hinge (812) is connected to the lifting plate (7), and the hinged end is connected to the third clamping link (815); the first clamping link (813), the second clamping link (814) and the third clamping link (815) are connected in series in sequence; the third clamping link (815) is provided with the chuck (816) at one end close to the centrifuge tube (9), and the chuck (816) extends in the horizontal direction and can be tangent to the tube cover (91).

7. The automatic centrifuge tube screwing device according to claim 6, characterized in that: One end of the third clamping connecting rod (815) close to the tube cover (91) of the centrifuge tube (9) is bent toward one side of the tube cover (91) of the centrifuge tube (9) at a set angle.

8. The automatic centrifuge tube screwing device according to claim 6, characterized in that: The clamping head (816) is provided with saw teeth.

9. The automatic centrifuge tube screwing device according to claim 6, characterized in that: The hinged end of the second clamping hinge (812) is connected to the middle part of the third clamping link (815).

10. The centrifuge tube automatic screwing device according to claim 1, characterized in that: The lifting mechanism (1) can also be driven by an electric push rod or a hydraulic cylinder.

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