Biological sample storage device facilitating sample taking

Abstract

The biological sample storage device comprises a liquid nitrogen tank body and a tank cover, a container tank is arranged in the liquid nitrogen tank body, the side wall of the container tank is fixedly connected with a pull rod, the lower end of the liquid nitrogen tank body is fixedly connected with an installation bottom plate, and the lower end of the installation bottom plate is fixedly connected with the liquid nitrogen tank body. A sliding rail is installed at the upper end of the installation bottom plate through a plurality of installation rods, a driving mechanism used for driving the container tank to ascend and descend is arranged on the sliding rail, the driving mechanism comprises a rotating rod arranged on the sliding rail, an installation frame is installed at the upper end of the rotating rod through an installation mechanism, and a threaded rod and a first motor are arranged on the installation frame. The driving mechanism is arranged, the container tank can be driven by the lifting rod to ascend and descend by starting the first motor, the biological sample can be automatically put in and taken out, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample storage devices, in particular to a biological sample storage device which is convenient for taking samples. Background Art

[0002] Biological samples include human organ tissues, whole blood, plasma, serum, biological fluids or processed biological samples. In order for these samples to be able to be used normally after long-term storage, they need to be stored in a low-temperature, sterile environment that meets specific requirements, such as a liquid nitrogen tank.

[0003] In the prior art, a liquid nitrogen tank for storing biological samples includes an outer tank, an inner tank, a neck tube, a tank cover, etc. A storage tube for placing samples is hung on the neck tube through a hook. Therefore, when storing samples, an operator needs to wear gloves to reach into the tank body to take out the hook and then put it back. Since the hook is very long, it is necessary to be very careful when taking it to avoid touching the neck tube and falling, which makes it inconvenient to take samples. Therefore, it is necessary to design a biological sample storage device that is easy to take samples to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a biological sample storage device which is convenient for taking samples.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A biological sample storage device for convenient sample taking comprises a liquid nitrogen tank body and a tank cover, wherein a container tank is arranged in the liquid nitrogen tank body, a pull rod is fixedly connected to the side wall of the container tank, a mounting base is fixedly connected to the lower end of the liquid nitrogen tank body, a slide rail is installed on the upper end of the mounting base plate through a plurality of mounting rods, a driving mechanism for driving the container tank to be lifted and lowered is arranged on the slide rail, the driving mechanism comprises a rotating rod arranged on the slide rail, a mounting frame is installed on the upper end of the rotating rod through the mounting mechanism, a threaded rod and a first motor are arranged on the mounting frame, a sliding plate is arranged on the threaded rod, a lifting rod is fixedly connected to the lower end of the sliding plate, and a placement groove which can match the lifting rod is opened at the lower end of the pull rod.

[0007] Preferably, the mounting mechanism comprises a transverse plate fixedly connected to the upper end of the rotating rod, the upper end of the transverse plate is rotatably connected to the rotating rod, and the rotating rod is connected to the mounting frame via a connecting mechanism.

[0008] Preferably, the connection mechanism comprises two connection plates respectively fixedly connected to the rotating rod and the side wall of the mounting frame, and the two connection plates are connected by bolts and nuts.

[0009] Preferably, a second motor is fixedly connected to the upper end of the horizontal plate, a first gear is fixedly connected to the output shaft of the second motor, and a second gear is fixedly connected to the side wall of the rotating rod.

[0010] Preferably, a gear ring is fixedly connected to the side wall of the rotating rod, a third motor is fixedly connected to the upper end of the mounting base plate, and a third gear is fixedly connected to the output shaft of the third motor.

[0011] Preferably, the gear ring is slidably connected to a plurality of mounting rods, and a limiting groove is provided at the inner bottom of the lifting rod.

[0012] The utility model has the following beneficial effects:

[0013] The device is provided with a driving mechanism, which can automatically place and take out biological samples by rotating the horizontal part of the lifting rod into the placement groove of the pull rod and starting the first motor, thereby improving the practicality of the device;

[0014] The device is provided with a mounting mechanism, and the mounting frame can be rotated to the liquid nitrogen tank body by rotating the rotating rod, so that the pull rod can be hung outside the liquid nitrogen tank body, which is convenient for operators to operate, thereby improving the practicality of the device;

[0015] The device is provided with a connection mechanism, so that the mounting frame and the rotating rod can be disassembled, which is convenient for the transportation of the equipment;

[0016] The device is provided with a third motor, and the rotating rod can be rotated by starting the third motor, so that the rotating rod does not need to be rotated manually, thereby improving the automation degree of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a biological sample storage device for easy sample taking proposed by the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the structure at A;

[0019] Figure 3 A side view of a biological sample storage device for easy sample taking proposed by the utility model;

[0020] Figure 4 This is another side view of the biological sample storage device proposed by the present invention, which is convenient for taking samples.

[0021] In the figure: 1 liquid nitrogen tank body, 2 mounting base plate, 3 container tank, 4 tank cover, 5 threaded rod, 6 mounting frame, 7 horizontal plate, 8 sliding plate, 9 first motor, 10 connecting plate, 11 lifting rod, 12 pulling rod, 13 second motor, 14 rotating rod, 15 rotating rod, 16 slide rail, 17 gear ring, 18 third motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A biological sample storage device for convenient sample taking includes a liquid nitrogen tank body 1 and a tank cover 4, a container tank 3 is arranged in the liquid nitrogen tank body 1, a pull rod 12 is fixedly connected to the side wall of the container tank 3, a mounting base plate 2 is fixedly connected to the lower end of the liquid nitrogen tank body 1, a slide rail 16 is installed on the upper end of the mounting base plate 2 through a plurality of mounting rods, the slide rail 16 is slidably connected to a rotating rod 15, a driving mechanism for driving the container tank 3 to rise and fall is provided on the slide rail 16, the driving mechanism includes a rotating rod 15 arranged on the slide rail 16, a mounting frame 6 is installed on the upper end of the rotating rod 15 through the mounting mechanism, a threaded rod 5 and a first motor 9 are arranged on the mounting frame 6, a sliding plate 8 is arranged on the threaded rod 5, a lifting rod 11 is fixedly connected to the lower end of the sliding plate 8, the lifting rod 11 includes a vertical part and a horizontal C-shaped plate, and a placement groove that can match the lifting rod 11 is opened at the lower end of the pull rod 12.

[0024] The mounting mechanism includes a transverse plate 7 fixedly connected to the upper end of a rotating rod 15 , and a rotating rod 14 is rotatably connected to the upper end of the transverse plate 7 , and the rotating rod 14 is connected to the mounting frame 6 via a connecting mechanism.

[0025] In the present invention, the connection mechanism comprises two connection plates 10 respectively fixedly connected to the rotating rod 14 and the side wall of the mounting frame 6, and the two connection plates 10 are connected by bolts and nuts.

[0026] In the utility model, a second motor 13 is fixedly connected to the upper end of the horizontal plate 7, an output shaft of the second motor 13 is fixedly connected to a first gear, a side wall of the rotating rod 14 is fixedly connected to a second gear, the first motor 9, the second motor 13 and the third motor 18 are 130ZFMA1-0003CBNM 130 servo motors, and their output shafts can rotate forward and reverse, and the control mode is one of the following: pulse control mode, analog control mode, communication control mode, the teeth of the first gear and the second gear are not shown in the diagram, the two are meshed, and the meshing details are not shown in the diagram, the rotating rod 14 can be rotated forward and reversely, and there is no need to manually rotate the rotating rod 14.

[0027] In the utility model, a gear ring 17 is fixedly connected to the side wall of the rotating rod 15, a third motor 18 is fixedly connected to the upper end of the mounting base plate 2, and a third gear is fixedly connected to the output shaft of the third motor 18. The gear ring 17 and the third gear are not shown in the tooth diagram, and the two are meshed. The meshing details are not shown in the diagram, so that the rotating rod 15 can rotate automatically on the slide rail 16 without manual push.

[0028] In the utility model, the gear ring 17 is slidably connected with multiple mounting rods to improve the rotation stability of the rotating rod 15. A limiting groove is provided at the bottom of the lifting rod 11 so that the position of the pull rod 12 when it is put back into the lifting rod 11 is fixed to avoid misalignment of the lifting rod 11 when it is put in.

[0029] When in use, the rotating rod 15 can be rotated so that the horizontal part of the lifting rod 11 rotates into the placement groove of the pull rod 12. By starting the first motor 9, the output shaft of the first motor 9 drives the threaded rod 5 to rotate, and the lifting rod 11 lifts the pull rod 12 out of the liquid nitrogen tank body 1, and then the biological sample is placed in the container tank 3 or the container tank 3 is removed. The output shaft of the first motor 9 is reversed, and the container tank 3 is placed back into the liquid nitrogen tank body 1. The rotating rod 15 is rotated, and the first motor 9 is started, so that the lifting rod 11 is moved out of the liquid nitrogen tank body 1 and the tank cover 4 is closed. In the process, the biological sample can be automatically placed in and taken out, thereby improving the practicality of the device;

[0030] The rotation of the rotating rod 15 can be achieved by starting the third motor 18. The output shaft of the third motor 18 drives the third gear to rotate. The third gear drives the rotating rod 15 to rotate through the transmission with the ring gear 17. Therefore, there is no need to manually rotate the rotating rod 15, thereby improving the degree of automation of the device.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and practical concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biological sample storage device for convenient sample retrieval, comprising a liquid nitrogen tank body (1) and a tank cover (4), characterized in that: A container tank (3) is arranged inside the liquid nitrogen tank body (1), a pull rod (12) is fixedly connected to the side wall of the container tank (3), a mounting base (2) is fixedly connected to the lower end of the liquid nitrogen tank body (1), a slide rail (16) is installed on the upper end of the mounting base (2) via a plurality of mounting rods, a driving mechanism for driving the container tank (3) to be lifted or lowered is arranged on the slide rail (16), the driving mechanism comprises a rotating rod (15) arranged on the slide rail (16), a mounting frame (6) is installed on the upper end of the rotating rod (15) via a mounting mechanism, a threaded rod (5) and a first motor (9) are arranged on the mounting frame (6), a sliding plate (8) is arranged on the threaded rod (5), a lifting rod (11) is fixedly connected to the lower end of the sliding plate (8), and a placement groove that can match the lifting rod (11) is opened at the lower end of the pull rod (12).

2. A biological sample storage device for easy sample taking according to claim 1, characterized in that: The mounting mechanism comprises a transverse plate (7) fixedly connected to the upper end of a rotating rod (15); the upper end of the transverse plate (7) is rotatably connected to a rotating rod (14); and the rotating rod (14) is connected to the mounting frame (6) via a connecting mechanism.

3. A biological sample storage device for easy sample taking according to claim 2, characterized in that: The connection mechanism comprises two connection plates (10) respectively fixedly connected to the rotating rod (14) and the side wall of the mounting frame (6), and the two connection plates (10) are connected by bolts and nuts.

4. A biological sample storage device for easy sample taking according to claim 3, characterized in that: The upper end of the horizontal plate (7) is fixedly connected to a second motor (13), an output shaft of the second motor (13) is fixedly connected to a first gear, and a side wall of the rotating rod (14) is fixedly connected to a second gear.

5. The biological sample storage device for facilitating sample taking according to claim 4, characterized in that: A gear ring (17) is fixedly connected to the side wall of the rotating rod (15), a third motor (18) is fixedly connected to the upper end of the mounting base plate (2), and a third gear is fixedly connected to the output shaft of the third motor (18).

6. The biological sample storage device for facilitating sample taking according to claim 5, characterized in that: The gear ring (17) is slidably connected to a plurality of mounting rods, and a limiting groove is provided at the inner bottom of the lifting rod (11).

Images