Single-motor-driven multi-degree-of-freedom uncovering mechanism and biological sample storage device

Abstract

The utility model relates to the technical field of storage tank uncovering, and discloses a single-motor drive multi-degree-of-freedom uncovering mechanism and a biological sample storage device.The single-motor drive multi-degree-of-freedom uncovering mechanism comprises a main body plate and a drive motor, the surface of the main body plate is provided with a track rack and a guide assembly, and the surface of the guide assembly is provided with a fixing plate; the surface of the fixing plate is rotationally connected with a rotating seat, a transmission assembly is arranged between the rotating seat and the track rack, the driving motor is installed on the top of the rotating seat, and an output shaft of the driving motor is connected with the transmission assembly. According to the single-motor-driven multi-degree-of-freedom cover opening mechanism, by arranging the driving motor, the track rack, the position guiding assembly, the rotating base and the transmission assembly, after a cover is grabbed, the driving motor is started, the motor drives the transmission assembly and the cover to move along the track rack together, and then the position guiding assembly is matched for position guiding, so that the cover can be automatically opened and turned over to the other side; the operation process is convenient and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank cover opening, in particular to a single-motor driven multi-degree-of-freedom cover opening mechanism and a biological sample storage device. Background Art

[0002] The biological sample library is a large device used to store important biological samples at low temperatures for a long time. When in use, the biological samples are placed in sample tubes, which are placed on plate racks, and the plate racks are placed in deep cryogenic storage tanks (i.e. liquid nitrogen tanks) in various arrangements to achieve long-term stable storage of biological samples. Whenever biological samples are input and output from the sample library, the lid of the storage tank needs to be opened.

[0003] However, after the lid is opened, the lid needs to have a storage position, and the storage position needs to avoid the transfer path of the biological sample. Therefore, the lid opening operation needs to occupy a large space, which is not conducive to the layout of the internal structure of the entire device. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a single-motor driven multi-degree-of-freedom cover opening mechanism and a biological sample storage device, which solve the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a single-motor driven multi-degree-of-freedom cover opening mechanism, comprising: a main body plate and a driving motor, the surface of the main body plate is respectively mounted with a track rack and a guide assembly, the surface of the guide assembly is mounted with a fixed plate, the surface of the fixed plate is rotatably connected with a rotating seat, a transmission assembly is arranged between the rotating seat and the track rack, the driving motor is mounted on the top of the rotating seat, and the output shaft of the driving motor is connected with the transmission assembly;

[0006] A limiting groove is provided on the surface of the main body plate, the side of the limiting groove close to the guide assembly is the inner side, and the track rack is arranged along the inner edge of the limiting groove;

[0007] A connecting bracket is installed on the surface of the rotating seat facing away from the main body plate, and a clamping claw assembly for clamping the cover is installed on the connecting bracket.

[0008] Preferably, the guide assembly comprises: a transverse slide rail, a transverse slider, a movable plate, a vertical slide rail and a vertical slider;

[0009] The transverse slide rail is installed on the surface of the main plate, the transverse slider is installed on the transverse slide rail, the movable plate is connected to the transverse slider, the vertical slide rail is installed on the surface of the movable plate, the vertical slider is installed on the vertical slide rail, and the fixed plate is connected to the vertical slider.

[0010] Preferably, the number of the transverse slide rails and the number of the vertical slide rails are both two, the two transverse slide rails are arranged parallel to each other, the two vertical slide rails are arranged parallel to each other, and the two transverse slide rails and the two vertical slide rails are arranged perpendicular to each other.

[0011] Preferably, the transmission assembly comprises: a rotating shaft, a driving gear, a first transmission gear and a driven gear;

[0012] One end of the rotating shaft is connected to the rotating seat, and the other end of the rotating shaft is connected to a limit bearing, and the limit bearing is rollingly arranged in the limit groove of the main plate, the first transmission gear and the driven gear are both sleeved on the rotating shaft, and the driven gear is meshed with the track rack, and the driving gear is installed on the output shaft of the driving motor, and the driving gear is meshed with the first transmission gear.

[0013] Preferably, the rotating seat is respectively provided with a first connecting hole and a second connecting hole, a fixed shaft is inserted into the first connecting hole, one end of the fixed shaft is fixedly connected to the surface of the fixed plate, the other end of the fixed shaft passes through the first connecting hole of the rotating seat and is fixedly connected to the connecting bracket, a connecting bearing is installed in the second connecting hole, and one end of the rotating shaft is rotatably connected to the rotating seat through the connecting bearing.

[0014] Preferably, it further comprises a first motor seat, wherein the first motor seat is mounted on the top of the rotating seat, and the driving motor is mounted on the first motor seat.

[0015] Preferably, the clamping jaw assembly comprises: an adjusting motor, a second motor seat, a driving gear, a second transmission gear, an adjusting screw rod and two clamping jaw bodies;

[0016] The second motor seat is installed on the surface of the connecting bracket, the adjusting motor is installed on the second motor seat, the driving gear is installed on the output shaft of the adjusting motor, and the driving gear is meshed with the second transmission gear, the adjusting screw is installed on the bottom of the connecting bracket, and a left-handed nut and a right-handed nut are respectively installed on the adjusting screw, and connecting blocks are installed on the surfaces of the left-handed nut and the right-handed nut, and the two clamping jaw bodies are respectively installed at the bottom of the two connecting blocks.

[0017] Preferably, connecting seats are installed at both ends of the adjusting screw rod, and the connecting seats are fixed to the bottom of the connecting bracket. One end of the adjusting screw rod passes through a connecting hole of a connecting seat and is connected to the inner wall of the second transmission gear, and the other end of the adjusting screw rod is inserted into the connecting hole of another connecting seat.

[0018] Preferably, a clamping claw slide rail is installed at the bottom of the connecting bracket, and the two connecting blocks are slidably connected to the surface of the clamping claw slide rail.

[0019] Correspondingly, the utility model further provides a biological sample storage device, which includes the single-motor driven multi-degree-of-freedom cover opening mechanism as described above.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The utility model is provided with a driving motor, a track rack, a guide assembly, a rotating seat, a transmission assembly and a clamping claw assembly. After the clamping claw assembly grabs the cover, the driving motor is started, and the motor drives the transmission assembly and the cover to move along the track rack, and then cooperates with the guide assembly for guiding, so that the cover can be automatically opened and turned to the other side. The operation process is convenient and the space occupied is small.

[0022] 2. The utility model drives the driving gear to move by adjusting the motor, and the driving gear drives the adjusting screw to move through the movement of the second transmission gear, so that the left-handed nut and the right-handed nut move toward each other, and then drives the two clamping claws to move toward each other and dock with the preset groove of the lid, so as to clamp the lid conveniently and drive the lid to move.

[0023] 3. The utility model sets a limit groove and a limit bearing on the main plate, and connects the rotating shaft of the transmission assembly with the limit bearing. When the transmission assembly moves along the track rack, the rotating shaft drives the limit bearing to move, and the limit bearing rolls on the inner wall of the limit groove. The movement of the limit bearing is limited and guided by the limit groove, and then the rotating shaft is guided, so that the movement process of the transmission assembly is stable, and then the cover opening process is stable.

[0024] 4. The utility model realizes the vertical, lateral and turning movement of the cover through a single motor drive, and the control method is simple; in addition, a two-stage linear slide rail is used in conjunction with a rotating seat to realize the turning, which is lower in cost than an arc slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 This is a side view of the structure of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the fixed plate and the fixed shaft of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the rotating seat of the utility model;

[0029] Figure 5 This is a schematic diagram of the front view structure of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the adjusting screw rod, the left-hand nut and the right-hand nut of the utility model;

[0031] Figure 7 For this utility model Figure 5 Schematic diagram of the side section structure at the middle AA position;

[0032] Figure 8 It is a structural schematic diagram of the connecting bracket of the utility model.

[0033] In the figure: 1. main plate; 2. driving motor; 3. track rack; 4. guide assembly; 41. transverse slide rail; 42. transverse slider; 43. moving plate; 44. vertical slide rail; 45. vertical slider; 5. fixed plate; 6. rotating seat; 7. transmission assembly; 71. rotating shaft; 72. driving gear; 73. first transmission gear; 74. driven gear; 8. connecting bracket; 9. clamping jaw assembly; 91. adjusting motor; 92. second motor seat; 93. driving gear; 94. second transmission gear; 95. adjusting screw rod; 96. clamping jaw body; 97. left-handed nut; 98. right-handed nut; 99. connecting block; 10. first connecting hole; 11. second connecting hole; 12. fixed shaft; 13. connecting bearing; 14. first motor seat; 15. connecting seat; 16. clamping jaw slide rail; 17. limiting groove; 18. limiting bearing; 19. cover. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-8 , a single-motor driven multi-degree-of-freedom cover opening mechanism, comprising: a main body plate 1 and a driving motor 2, a track rack 3 and a guide assembly 4 are respectively installed on the surface of the main body plate 1, a fixed plate 5 is installed on the surface of the guide assembly 4, and a rotating seat 6 is rotatably connected to the surface of the fixed plate 5, a transmission assembly 7 is arranged between the rotating seat 6 and the track rack 3, the driving motor 2 is installed on the top of the rotating seat 6, and the output shaft of the driving motor 2 is connected to the transmission assembly 7, a limiting groove 17 is arranged on the surface of the main body plate 1, and the side of the limiting groove 17 close to the guide assembly 4 is the inner side, and the track rack 3 is arranged along the inner edge of the limiting groove 17, and a connecting bracket 8 is installed on the surface of the rotating seat 6 facing away from the main body plate 1, and a clamping claw assembly 9 for clamping a cover 19 is installed on the connecting bracket 8.

[0036] See also Figure 1 The guide assembly 4 includes a transverse slide rail 41, a transverse slider 42, a movable plate 43, a vertical slide rail 44 and a vertical slider 45. The transverse slide rail 41 is installed on the surface of the main plate 1, the transverse slider 42 is installed on the transverse slide rail 41, the vertical slide rail 44 is installed on the surface of the movable plate 43, and the vertical slider 45 is installed on the vertical slide rail 44.

[0037] There are two transverse slide rails 41 and two vertical slide rails 44, the two transverse slide rails 41 are arranged parallel to each other, the two vertical slide rails 44 are arranged parallel to each other, and the two transverse slide rails 41 and the two vertical slide rails 44 are arranged perpendicular to each other. The movable plate 43 is connected to the two transverse slide blocks 42, and the fixed plate 5 is connected to the two vertical slide blocks 45.

[0038] Please refer to Figure 2 and Figure 7 The transmission assembly 7 includes a rotating shaft 71, a driving gear 72, a first transmission gear 73 and a driven gear 74. One end of the rotating shaft 71 is connected to the rotating seat 6, and the other end of the rotating shaft 71 is connected to the limit bearing 18. The limit bearing 18 is rollingly arranged in the limit groove 17 of the main plate 1. The first transmission gear 73 and the driven gear 74 are both sleeved on the rotating shaft 71, and the driven gear 74 is meshed with the track rack 3. The driving gear 72 is installed on the output shaft of the driving motor 2, and the driving gear 72 is meshed with the first transmission gear 73.

[0039] See also Figure 4-5 A first connecting hole 10 and a second connecting hole 11 are respectively provided on the rotating seat 6. The first connecting hole 10 is used to insert a fixed shaft 12. One end of the fixed shaft 12 is fixedly connected to the surface of the fixed plate 5. The other end of the fixed shaft 12 passes through the first connecting hole 10 of the rotating seat 6 and is connected to the connecting bracket 8. A connecting bearing 13 is installed in the second connecting hole 11. One end of the rotating shaft 71 is rotatably connected to the rotating seat 6 through the connecting bearing 13.

[0040] See also Figure 2 , Figure 5-6The single-motor driven multi-degree-of-freedom cover opening mechanism also includes a first motor seat 14, which is mounted on the top of the rotating seat 6, and the drive motor 2 is mounted on the first motor seat 14. The clamping jaw assembly 9 includes an adjusting motor 91, a second motor seat 92, a driving gear 93, a second transmission gear 94, an adjusting screw rod 95 and two clamping jaw bodies 96. The second motor seat 92 is mounted on the surface of the connecting bracket 8, the adjusting motor 91 is mounted on the second motor seat 92, the driving gear 93 is mounted on the output shaft of the adjusting motor 91, and the driving gear 93 is meshed with the second transmission gear 94, and the adjusting screw rod 95 is mounted on the bottom of the connecting bracket 8. A left-handed nut 97 and a right-handed nut 98 are respectively mounted on the adjusting screw rod 95, and connecting blocks 99 are installed on the surfaces of the left-handed nut 97 and the right-handed nut 98, and the two clamping jaw bodies 96 are respectively mounted on the bottom of the two connecting blocks 99.

[0041] Both ends of the adjusting screw rod 95 are equipped with connecting seats 15, and the connecting seats 15 are fixed to the bottom of the connecting bracket 8. One end of the adjusting screw rod 95 passes through a connecting hole of a connecting seat 15 and is connected to the inner wall of the second transmission gear 94. The other end of the adjusting screw rod 95 is inserted into the connecting hole of another connecting seat 15. A clamping claw slide rail 16 is installed at the bottom of the connecting bracket 8. The two connecting blocks 99 are slidably connected to the surface of the clamping claw slide rail 16. The clamping claw slide rail 16 guides the connecting block 99, thereby allowing the two clamping claw bodies 96 to move smoothly.

[0042] When the cover needs to be opened, the adjusting motor 91 is started, the output shaft of the adjusting motor 91 rotates and drives the driving gear 93 to rotate, the driving gear 93 drives the second transmission gear 94 to rotate, the second transmission gear 94 drives the adjusting screw 95 to rotate, the adjusting screw 95 drives the left-handed nut 97 and the right-handed nut 98 to move towards each other, the left-handed nut 97 and the right-handed nut 98 respectively drive the two clamping jaw bodies 96 to move towards each other through the connecting block 99, the clamping jaw body 96 is inserted into the preset groove of the cover 19 to clamp and fix the cover 19.

[0043] After completing the clamping and fixing of the cover 19, the drive motor 2 is started, the output shaft of the drive motor 2 rotates and drives the driving gear 72 to rotate, the driving gear 72 drives the first transmission gear 73 to rotate, the first transmission gear 73 drives the rotating shaft 71 to move, the rotating shaft 71 drives the driven gear 74 to rotate, the driven gear 74 is meshed with the track rack 3, so that the driven gear 74 rolls on the surface of the track rack 3, when the driven gear 74 climbs upward along the track rack 3, the driven gear 74 drives the rotating seat 6 to move upward through the rotating shaft 71, since the connecting bracket 8 is fixed to the rotating seat 6, the rotating seat 6 drives the connecting bracket 8 to move in the same direction, and the clamping claw assembly 9 on the connecting bracket 8 also moves upward, thereby driving the clamped cover 19 to move upward, during this process, the fixed plate 5 drives the vertical slider 45 to move upward, and the vertical slider 45 slides on the surface of the vertical slide rail 44 for guidance.

[0044] When the driven gear 74 moves to the corner of the track rack 3, the fixed plate 5 and the fixed shaft 12 remain stationary, and the driving motor 2 drives the driven gear 74 to continue to move along the track rack 3. At this time, the driven gear 74 will drive the rotating seat 6 to rotate around the fixed shaft 12, thereby driving the cover 19 to flip 90 degrees. After that, the driven gear 74 continues to move, which drives the fixed plate 5 to move horizontally, and the fixed plate 5 drives the vertical slider 45, the vertical slide rail 44 and the moving plate 43 to move horizontally together. In this process, the moving plate 43 drives the lateral sliding slider 42 to move horizontally, and the lateral sliding slider 42 slides on the surface of the lateral sliding rail 41 for guidance until the driven gear 74 moves to the end of the track rack 3, and the cover 19 can be opened and flipped.

[0045] When the cover 19 needs to be closed, the output shaft of the driving motor 2 is simply rotated in the reverse direction. After the cover 19 has completed lateral movement, flipping, and vertical movement, the output shaft of the regulating motor 91 is rotated in the reverse direction to release the cover 19.

[0046] Correspondingly, this embodiment also provides a biological sample storage device, which includes the single-motor driven multi-degree-of-freedom cover opening mechanism as described above, which can realize automatic cover opening and flipping movement, and the operation process is simple and convenient, and occupies little space.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single motor driven multi-degree-of-freedom cover opening mechanism, characterized in that: include: A main body plate (1) and a driving motor (2), wherein a track rack (3) and a guide assembly (4) are respectively mounted on the surface of the main body plate (1), a fixed plate (5) is mounted on the surface of the guide assembly (4), a rotating seat (6) is rotatably connected to the surface of the fixed plate (5), a transmission assembly (7) is arranged between the rotating seat (6) and the track rack (3), the driving motor (2) is mounted on the top of the rotating seat (6), and the output shaft of the driving motor (2) is connected to the transmission assembly (7); A limiting groove (17) is provided on the surface of the main body plate (1), the side of the limiting groove (17) close to the guide assembly (4) is the inner side, and the track rack (3) is arranged along the inner edge of the limiting groove (17); A connecting bracket (8) is installed on the surface of the rotating seat (6) facing away from the main body plate (1), and a clamping claw assembly (9) for clamping the cover (19) is installed on the connecting bracket (8).

2. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 1, characterized in that: The guide assembly (4) comprises: a transverse sliding rail (41), a transverse sliding block (42), a movable plate (43), a vertical sliding rail (44) and a vertical sliding block (45); The transverse slide rail (41) is installed on the surface of the main plate (1), the transverse slider (42) is installed on the transverse slide rail (41), the movable plate (43) is connected to the transverse slider (42), the vertical slide rail (44) is installed on the surface of the movable plate (43), the vertical slider (45) is installed on the vertical slide rail (44), and the fixed plate (5) is connected to the vertical slider (45).

3. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 2, characterized in that: The number of the transverse slide rails (41) and the number of the vertical slide rails (44) are both two, the two transverse slide rails (41) are arranged parallel to each other, the two vertical slide rails (44) are arranged parallel to each other, and the two transverse slide rails (41) and the two vertical slide rails (44) are arranged perpendicular to each other.

4. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 1, characterized in that: The transmission assembly (7) comprises: a rotating shaft (71), a driving gear (72), a first transmission gear (73) and a driven gear (74); One end of the rotating shaft (71) is connected to the rotating seat (6), and the other end of the rotating shaft (71) is connected to a limit bearing (18), and the limit bearing (18) is rollingly arranged in a limit groove (17) of the main plate (1). The first transmission gear (73) and the driven gear (74) are both sleeved on the rotating shaft (71), and the driven gear (74) is meshed with the track rack (3). The driving gear (72) is installed on the output shaft of the driving motor (2), and the driving gear (72) is meshed with the first transmission gear (73).

5. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 4, characterized in that: The rotating seat (6) is respectively provided with a first connecting hole (10) and a second connecting hole (11); a fixed shaft (12) is inserted into the first connecting hole (10); one end of the fixed shaft (12) is fixedly connected to the surface of the fixed plate (5); the other end of the fixed shaft (12) passes through the first connecting hole (10) of the rotating seat (6) and is connected to the connecting bracket (8); a connecting bearing (13) is installed in the second connecting hole (11); one end of the rotating shaft (71) is rotatably connected to the rotating seat (6) via the connecting bearing (13).

6. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 5, characterized in that: It also comprises a first motor seat (14), wherein the first motor seat (14) is mounted on the top of the rotating seat (6), and the driving motor (2) is mounted on the first motor seat (14).

7. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 1, characterized in that: The clamping jaw assembly (9) comprises: an adjusting motor (91), a second motor base (92), a driving gear (93), a second transmission gear (94), an adjusting screw rod (95) and two clamping jaw bodies (96); The second motor seat (92) is mounted on the surface of the connecting bracket (8), the adjusting motor (91) is mounted on the second motor seat (92), the driving gear (93) is mounted on the output shaft of the adjusting motor (91), and the driving gear (93) is meshed with the second transmission gear (94), the adjusting screw rod (95) is mounted on the bottom of the connecting bracket (8), a left-handed nut (97) and a right-handed nut (98) are respectively mounted on the adjusting screw rod (95), and connecting blocks (99) are mounted on the surfaces of the left-handed nut (97) and the right-handed nut (98), and the two clamping jaw bodies (96) are respectively mounted on the bottoms of the two connecting blocks (99).

8. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 7, characterized in that: Both ends of the adjusting screw rod (95) are provided with connecting seats (15), and the connecting seats (15) are fixed to the bottom of the connecting bracket (8). One end of the adjusting screw rod (95) passes through a connecting hole of a connecting seat (15) and is connected to the inner wall of the second transmission gear (94), and the other end of the adjusting screw rod (95) is inserted into the connecting hole of another connecting seat (15).

9. The single-motor driven multi-degree-of-freedom cover opening mechanism according to claim 7, characterized in that: A clamping claw slide rail (16) is installed at the bottom of the connecting bracket (8), and the two connecting blocks (99) are both slidably connected to the surface of the clamping claw slide rail (16).

10. A biological sample storage device, characterized in that: It comprises a single-motor driven multi-degree-of-freedom cover opening mechanism as described in any one of claims 1 to 9.

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