Refrigerated centrifuge with positioning structure

Abstract

The utility model provides a refrigerated centrifuge with a positioning structure, which relates to the technical field of refrigerated centrifuges and comprises a centrifuge main body, a centrifugal chamber arranged on the centrifuge main body and a rotating motor fixed on the inner bottom wall of the centrifugal chamber, a placing plate is fixed at the output end of the rotating motor, and a clamping mechanism is arranged at the top of the placing plate. According to the refrigerated centrifuge with the positioning structure, a micro motor is started to drive a threaded rod to rotate, the threaded rod drives a threaded block to move, the threaded block pushes a movable plate and a fixed plate to move, and the fixed plate can move to push a second arc-shaped plate to move towards a first arc-shaped plate, so that different test tubes can be clamped and fixed; the problem that the centrifugal machine needs to be adjusted again due to replacement of test tubes of different sizes is solved, the clamping force generated when the second arc-shaped plate clamps the test tubes can be buffered through the arrangement of the telescopic rods and the telescopic springs, and the problem that the test tubes are broken due to the too large clamping force is solved.

Description

Technical Field

[0001] The utility model relates to a refrigerated centrifuge, in particular to a refrigerated centrifuge with a positioning structure, and belongs to the technical field of refrigerated centrifuges. Background Technique

[0002] A refrigerated centrifuge is a special equipment for quickly separating mixed liquids, and can be widely used in scientific research, genetic engineering, genetics, life science, biochemistry, medical and other units for carrying out tests, biochemical experiments, separating suspensions and other work.

[0003] A refrigerated centrifuge disclosed in the Chinese Patent Application Publication Specification CN216988111U places test tubes in the first through hole, the second through hole and the groove. The output end of the rotation driving device rotates counterclockwise. When the rotation driving device rotates, it drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the second rotating plate to rotate. Through the dislocation between the second rotating plate and the first rotating plate and the third rotating plate, the test tubes are clamped, so that the test tubes can be fixed during the centrifugation operation, effectively improving the stability of the test tubes, avoiding the test tubes from cracking, and effectively reducing the safety hazards.

[0004] Since in actual scientific research experiments, different types and sizes of test tubes are often required to meet various experimental needs, the above patent solution can only position and fix test tubes of the same size, limiting the application range of the centrifuge. When changing test tubes of different sizes each time, the centrifuge needs to be readjusted, reducing the work efficiency, and there is also a problem that the test tubes are easily cracked due to excessive clamping force when fixing the test tubes. Content of the Utility Model

[0005] The utility model provides a refrigerated centrifuge with a positioning structure, which can position and fix test tubes of different sizes and can also avoid the test tubes from cracking during clamping.

[0006] The utility model is realized through the following technical solutions: A refrigerated centrifuge with a positioning structure includes a centrifuge main body, a centrifugation chamber opened on the centrifuge main body, and a rotating motor fixed on the inner bottom wall of the centrifugation chamber. The output end of the rotating motor is fixed with a placement plate, and a clamping mechanism is arranged on the top of the placement plate.

[0007] The clamping mechanism includes a fixed shell and a fixed block fixed on the upper surface of the placement plate. A micro motor is fixed on one side of the fixed shell. The output end of the micro motor is fixed with a threaded rod, and one end of the threaded rod is rotatably connected to the inner side wall of the fixed shell. A threaded block is threadedly connected to the outer surface of the threaded rod, and the outer surface of the threaded block is in sliding contact with the inner wall of the fixed shell. A moving plate is fixed on the side of the threaded block away from the micro motor, and one side of the moving plate penetrates through the fixed shell and is slidably connected to the fixed shell.

[0008] One side of the moving plate away from the threaded block is fixed with a fixed plate. One side of the fixed plate away from the fixed shell is fixed with a telescopic rod. One end of the telescopic rod away from the fixed plate is fixed with a second arc-shaped plate. One end of the fixed block close to the fixed shell is fixed with a first arc-shaped plate.

[0009] Furthermore, the inner wall of the fixed shell is fixed with a sliding rod, and the outer surface of the sliding rod is slidably connected with the inner wall of the hole of the threaded block, which can guide and limit the movement of the threaded block.

[0010] Furthermore, a telescopic spring is sleeved on the outer surface of the telescopic rod, which can increase the buffering force of the telescopic rod.

[0011] Furthermore, a machine door is hinged on the upper surface of the centrifuge main body, and the machine door is located directly above the centrifugation chamber, which can protect the items in the centrifugation chamber.

[0012] Furthermore, a rotating rod is rotatably connected to the upper surface of the centrifuge main body. A limiting plate is fixed on the upper surface of the rotating rod, and the bottom surface of the limiting plate is in contact with the upper surface of the machine door. The machine door can be limited by turning the limiting plate above the machine door.

[0013] Furthermore, the bottom surface of the centrifuge main body is fixed with support legs, and anti-slip pads are arranged at the bottom ends of the support legs, which can support the device and increase its stability.

[0014] Furthermore, a control panel is arranged on the front surface of the centrifuge main body, and both the rotating motor and the micro motor are electrically connected to the control panel, which can be used to control the start of the rotating motor and the micro motor.

[0015] The present utility model provides a refrigerated centrifuge with a positioning structure, and the beneficial effects thereof are as follows:

[0016] 1. For the refrigerated centrifuge with a positioning structure, by starting the micro motor to drive the threaded rod to rotate, the rotation of the threaded rod can drive the threaded block to move. The threaded block pushes the moving plate and the fixed plate to move. The movement of the fixed plate can push the second arc-shaped plate to move towards the first arc-shaped plate, so as to clamp and fix different test tubes, avoiding the problem of needing to readjust the centrifuge due to replacing test tubes of different sizes.

[0017] 2. For the refrigerated centrifuge with a positioning structure, through the arrangement of the telescopic rod and the telescopic spring, the clamping force when the second arc-shaped plate clamps the test tube can be buffered, avoiding the problem of the test tube being broken due to excessive clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the centrifuge main body in the present utility model;

[0020] Figure 3 It is a schematic structural view of the clamping mechanism in the present utility model;

[0021] Figure 4 It is a schematic cross-sectional view of the fixed shell in the present utility model.

[0022] Explanation of reference numerals

[0023] 1. Centrifuge main body; 101. Centrifugal chamber;

[0024] 2. Clamping mechanism; 201. Fixed shell; 202. Micro motor; 203. Threaded rod; 204. Threaded block; 205. Moving plate; 206. Fixed plate; 207. Telescopic rod; 208. Telescopic spring; 209. Fixed block; 210. First arc-shaped plate; 211. Second arc-shaped plate;

[0025] 3. Rotating motor; 4. Placing plate; 5. Machine door; 6. Rotating rod; 7. Limiting plate; 8. Control panel; 9. Support leg; 10. Slide bar. Specific implementation manner

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the embodiment of the present utility model provides a refrigerated centrifuge with a positioning structure, including a centrifuge main body 1, a centrifugal chamber 101 opened on the centrifuge main body 1, and a rotating motor 3 fixed on the inner bottom wall of the centrifugal chamber 101. The output end of the rotating motor 3 is fixed with a placing plate 4. A clamping mechanism 2 is arranged on the top of the placing plate 4. A machine door 5 is hinged on the upper surface of the centrifuge main body 1, and the machine door 5 is located directly above the centrifugal chamber 101, which can protect the items in the centrifugal chamber 101. Support legs 9 are fixed on the bottom surface of the centrifuge main body 1, and anti-slip pads are arranged at the bottom ends of the support legs 9, which can support the device and increase its stability.

[0027] The clamping mechanism 2 includes a fixed housing 201 and a fixed block 209 fixed on the upper surface of the placement plate 4. A micro motor 202 is fixed on one side of the fixed housing 201. The output end of the micro motor 202 is fixed with a threaded rod 203, and one end of the threaded rod 203 is rotatably connected to the inner side wall of the fixed housing 201. A threaded block 204 is threadedly connected to the outer surface of the threaded rod 203, and the outer surface of the threaded block 204 is in sliding contact with the inner wall of the fixed housing 201. A slide bar 10 is fixed on the inner wall of the fixed housing 201, and the outer surface of the slide bar 10 is in sliding connection with the inner wall of the hole of the threaded block 204, which can guide and limit the movement of the threaded block 204. A moving plate 205 is fixed on the side of the threaded block 204 away from the micro motor 202, and one side of the moving plate 205 penetrates through the fixed housing 201 and is in sliding connection with the fixed housing 201.

[0028] A fixing plate 206 is fixed on the side of the moving plate 205 away from the threaded block 204. A telescopic rod 207 is fixed on the side of the fixing plate 206 away from the fixed housing 201. A second arc-shaped plate 211 is fixed at one end of the telescopic rod 207 away from the fixing plate 206. A first arc-shaped plate 210 is fixed at one end of the fixed block 209 close to the fixed housing 201. A telescopic spring 208 is sleeved on the outer surface of the telescopic rod 207, which can increase the buffering force of the telescopic rod 207. A refrigeration device is arranged inside the centrifuge main body 1.

[0029] By starting the micro motor 202 to drive the threaded rod 203 to rotate, the rotation of the threaded rod 203 can drive the threaded block 204 to move. The threaded block 204 pushes the moving plate 205 and the fixing plate 206 to move. The movement of the fixing plate 206 can push the second arc-shaped plate 211 to move towards the first arc-shaped plate 210, so as to clamp and fix different test tubes, avoiding the problem of readjusting the centrifuge due to replacing test tubes of different sizes.

[0030] Please refer specifically to Figure 1 , a rotating rod 6 is rotatably connected to the upper surface of the centrifuge main body 1. A limiting plate 7 is fixed on the upper surface of the rotating rod 6, and the bottom surface of the limiting plate 7 is in contact with the upper surface of the machine door 5. By turning the limiting plate 7 above the machine door 5, the machine door 5 can be limited.

[0031] Please refer specifically to Figure 1 , a control panel 8 is arranged on the front surface of the centrifuge main body 1, and both the rotating motor 3 and the micro motor 202 are electrically connected to the control panel 8, which can be used to control the start of the rotating motor 3 and the micro motor 202.

[0032] When the utility model is in use: open the machine door 5, then place the test tube to be centrifuged on the first arc-shaped plate 210, and then control the micro-motor 202 to start. The start of the micro-motor 202 can drive the threaded rod 203 to rotate, and the rotation of the threaded rod 203 can drive the threaded block 204 to move. The threaded block 204 pushes the moving plate 205 and the fixed plate 206 to move. The movement of the fixed plate 206 can push the second arc-shaped plate 211 to move towards the first arc-shaped plate 210 through the telescopic rod 207, so as to clamp and fix different test tubes, avoiding the problem of having to readjust the centrifuge when replacing test tubes of different sizes. When the clamping force on the test tube is too large, the second arc-shaped plate 211 will squeeze the telescopic rod 207 and the telescopic spring 208, thus generating an elastic force. The elastic force can buffer the pressure on the test tube, avoiding the problem of the test tube breaking due to excessive clamping force.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A refrigerated centrifuge with a positioning structure, comprising a centrifuge body (1), a centrifugal chamber (101) provided on the centrifuge body (1), and a rotating motor (3) fixed to the inner bottom wall of the centrifugal chamber (101), characterized in that: A placement plate (4) is fixed to the output end of the rotating motor (3), and a clamping mechanism (2) is provided on the top of the placement plate (4); The clamping mechanism (2) comprises a fixed shell (201) and a fixed block (209) fixed on the upper surface of the placement plate (4); a micro motor (202) is fixed to one side of the fixed shell (201); a threaded rod (203) is fixed to the output end of the micro motor (202); one end of the threaded rod (203) is rotatably connected to the inner wall of the fixed shell (201); a threaded block (204) is threadedly connected to the outer surface of the threaded rod (203); the outer surface of the threaded block (204) is in sliding contact with the inner wall of the fixed shell (201); a movable plate (205) is fixed to the side of the threaded block (204) away from the micro motor (202); and one side of the movable plate (205) passes through the fixed shell (201) and is slidably connected to the fixed shell (201); A fixed plate (206) is fixed to a side of the movable plate (205) away from the threaded block (204), a telescopic rod (207) is fixed to a side of the fixed plate (206) away from the fixed shell (201), a second arc-shaped plate (211) is fixed to an end of the telescopic rod (207) away from the fixed plate (206), and a first arc-shaped plate (210) is fixed to an end of the fixed block (209) close to the fixed shell (201).

2. A refrigerated centrifuge with a positioning structure according to claim 1, characterized in that: A sliding rod (10) is fixed to the inner wall of the fixed shell (201), and the outer surface of the sliding rod (10) is slidably connected to the inner wall of the hole of the threaded block (204).

3. The refrigerated centrifuge with a positioning structure according to claim 1, characterized in that: The outer surface of the telescopic rod (207) is sleeved with a telescopic spring (208).

4. The refrigerated centrifuge with a positioning structure according to claim 1, characterized in that: The upper surface of the centrifuge body (1) is hingedly provided with a door (5), and the door (5) is located directly above the centrifugal chamber (101).

5. A refrigerated centrifuge with a positioning structure according to claim 4, characterized in that: The upper surface of the centrifuge body (1) is rotatably connected to a rotating rod (6), a limiting plate (7) is fixed to the upper surface of the rotating rod (6), and the bottom surface of the limiting plate (7) is in contact with the upper surface of the machine door (5).

6. The refrigerated centrifuge with a positioning structure according to claim 1, characterized in that: A support leg (9) is fixed to the bottom surface of the centrifuge body (1), and an anti-slip pad is provided at the bottom end of the support leg (9).

7. The refrigerated centrifuge with a positioning structure according to claim 1, characterized in that: A control panel (8) is provided on the front of the centrifuge body (1), and the rotating motor (3) and the micro motor (202) are both electrically connected to the control panel (8).

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