Frame type centrifugal rotating arm

Abstract

The utility model discloses a frame type centrifugal rotating arm which comprises a base, the top of the base is sleeved with a rotating block rotationally connected with the base, the left side and the right side of the rotating block are both fixedly connected with frames, the left side and the right side of each frame are both fixedly connected with storage plates, the two storage plates are each provided with four round holes, and the round holes are formed in the left side and the right side of each frame. And the inner walls of the eight round holes are rotationally connected with storage blocks. According to the test tube rack, when a test tube is placed, the clamping air bag can clamp and fix the test tube, then the test tube is protected for the first time, and when the test tube rack works, the side, facing the rotating block, of the top end of the test tube inclines upwards, so that the situation that the test tube slides in the storage hole can be greatly reduced, and the test tube rack is convenient to use. And in the process that the top ends of the test tubes are obliquely arranged upwards, the storage holes can be located in the round holes, even if the test tubes slide in the storage holes, the round holes can also wrap the test tubes, and then the test tubes are protected for the third time.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal swing arms, and specifically relates to a frame-type centrifugal swing arm. Background Technique

[0002] The frame-type centrifugal swing arm is a mechanical structure, usually used in centrifuges or other equipment that requires rotation and centrifugal force. The characteristic of this structure is that there is a fixed frame, and one or more rotatable swing arms are installed inside the frame. One end of the swing arm is usually connected to the items to be centrifuged (such as test tubes, containers, etc.), and the other end is connected to the driving mechanism, so that the swing arm can rotate at high speed around the central axis.

[0003] When the frame-type centrifugal swing arm separates the solution in the test tube or container, the test tube is in a high-speed rotation state. If the test tube is not fixed stably, it is easy to fly out from the frame-type centrifugal swing arm, thereby affecting the safety of the device. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a frame-type centrifugal swing arm to solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions;

[0006] A frame-type centrifugal swing arm includes a base, a rotating block rotatably connected to the top of the base, frames fixedly connected to both the left and right sides of the rotating block, storage plates fixedly connected to both the left and right sides of the frames, four circular holes are opened on each of the two storage plates, the inner walls of the eight circular holes are rotatably connected with storage blocks, storage holes are opened on each of the eight storage blocks, clamping air bags are embedded in the inner walls of the eight storage holes, a conduit is fixedly connected between adjacent two storage blocks, motors are fixedly connected to both of the storage plates, and the output shafts of the four motors are respectively fixedly connected to the four storage blocks.

[0007] As a further description of the above technical solution:

[0008] Both ends of the conduit respectively penetrate through the two storage blocks and are respectively communicated with the two clamping air bags. A cavity is opened on the storage plate, the inner wall of the cavity is communicated with two air delivery pipes rotatably connected thereto, one ends of the two air delivery pipes respectively penetrate through the two storage blocks and are respectively communicated with the two clamping air bags, and an inflation mechanism is arranged on the storage plate.

[0009] As a further description of the above technical solution:

[0010] The inflation mechanism includes a lead screw, both ends of which are rotatably connected to the inner wall of the cavity. A piston plate threadedly connected to the lead screw is sleeved on the lead screw. The outer side of the piston plate is slidably connected to the inner wall of the cavity. One end of the lead screw is inserted into the placement plate and rotatably connected thereto. A driving wheel is fixedly connected to one end of the lead screw, and the outer side of the driving wheel is rotatably connected to the placement plate.

[0011] As a further description of the above technical solution:

[0012] A buffer pad is fixedly connected to the inner wall of the placement hole, and the buffer pad is a rubber layer.

[0013] As a further description of the above technical solution:

[0014] Rotating rods distributed in a ring are embedded in the rotating block. Both ends of the rotating rods are rotatably connected to the rotating block, and the outer sides of the rotating rods are in contact with the base.

[0015] As a further description of the above technical solution:

[0016] An anti-collision pad fixedly connected thereto is embedded in the inner wall of the round hole, and the shape of the anti-collision pad is arc-shaped.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] When placing the test tube in this solution, the clamping airbag can clamp and fix the test tube, thereby providing a primary protection effect for the test tube. When working, the top of the test tube is inclined upward toward the rotating block side, which can greatly reduce the situation of the test tube sliding in the placement hole and achieve a secondary protection effect for the test tube. During the process of the top of the test tube being inclined upward, the placement hole will be located in the round hole. Even if the test tube slides in the placement hole, the round hole will wrap the test tube, thereby achieving a tertiary protection for the test tube and effectively avoiding the situation that the test tube flies out of the device during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is the Figure 1 enlarged view of part A in;

[0021] Figure 3 is a top view cross-sectional view of the present utility model;

[0022] Figure 4 is the Figure 3 enlarged view of part B in;

[0023] Figure 5This is a schematic diagram of the position of the driving wheel in the present utility model.

[0024] Explanation of the reference numerals in the figure:

[0025] 1. Base; 2. Rotating block; 3. Frame; 4. Placing plate; 5. Round hole; 6. Placing block; 7. Placing hole; 8. Clamping airbag; 9. Conduit; 10. Motor; 11. Cavity; 12. Air delivery pipe; 13. Inflating mechanism; 131. Lead screw; 132. Piston plate; 133. Driving wheel; 14. Buffer pad; 15. Rotating rod; 16. Anti-collision pad. Specific implementation manner

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0027] Please refer to Figures 1-5 , in the present utility model: A frame-type centrifugal rotating arm includes a base 1. A rotating block 2 rotatably connected to it is sleeved on the top of the base 1. Frame 3 is fixedly connected to both the left and right sides of the rotating block 2. Placing plates 4 are fixedly connected to both the left and right sides of the frame 3. Four round holes 5 are opened on both of the two placing plates 4. Placing blocks 6 are rotatably connected to the inner walls of the eight round holes 5. Placing holes 7 are opened on the eight placing blocks 6. Clamping airbags 8 are embedded in the inner walls of the eight placing holes 7. Conduits 9 are fixedly connected between adjacent two placing blocks 6. Motors 10 are fixedly connected to both of the two placing plates 4. The output shafts of the four motors 10 are respectively fixedly connected to the four placing blocks 6.

[0028] In the present utility model, when centrifuging the solution in the test tube, first insert the test tube into the placing hole 7, and the clamping airbag 8 will play a role in clamping the test tube. Then the user turns on the motor 10, and the motor 10 will drive the four placing blocks 6 on the back to rotate. After the placing blocks 6 rotate, they will then drive the four placing blocks 6 on the front to rotate through the conduit 9. All the placing blocks 6 will drive the tops of all the test tubes to tilt towards the rotating block 2. At this time, the placing hole 7 will be closed by the round hole 5. Then the user can start the driving device located inside the base 1 to drive the rotating block 2 to rotate. After the rotating block 2 rotates, it will drive the placing plate 4 to rotate through the frame 3, thereby driving the test tube to rotate to perform the centrifugal separation work on the solution inside it. Until the separation of the solution in the test tube is completed, turn off the driving device on the base 1 to stop driving the test tube. Then the user reversely turns on the motor 10 to drive the placing hole 7 to face upwards, and the user can then draw out the test tube from the placing hole 7 to complete the effect of separating the solution in the test tube.

[0029] Please refer to Figures 3-5, wherein: both ends of the conduit 9 penetrate through two storage blocks 6 respectively and are respectively communicated with two clamping air bags 8. A cavity 11 is formed on the storage plate 4, and two air delivery pipes 12 rotatably connected to the inner wall of the cavity 11 are communicated with the inner wall of the cavity 11. One ends of the two air delivery pipes 12 penetrate through two storage blocks 6 respectively and are respectively communicated with two clamping air bags 8. An inflation mechanism 13 is arranged on the storage plate 4; the inflation mechanism 13 includes a lead screw 131, both ends of the lead screw 131 are rotatably connected to the inner wall of the cavity 11, a piston plate 132 threadedly connected to the lead screw 131 is sleeved on the lead screw 131, the outer side of the piston plate 132 is slidably connected to the inner wall of the cavity 11, one end of the lead screw 131 is inserted into the storage plate 4 and rotatably connected to the storage plate 4, and a driving wheel 133 is fixedly connected to one end of the lead screw 131. The outer side of the driving wheel 133 is rotatably connected to the storage plate 4.

[0030] In the present utility model, after the test tube is placed inside the storage hole 7, the user rotates the driving wheel 133, and the driving wheel 133 drives the lead screw 131 to rotate. Since the lead screw 131 is threadedly connected to the piston plate 132, the piston plate 132 slides along the inner wall of the cavity 11. At this time, the air inside the cavity 11 is pressed into the corresponding clamping air bag 8 through the air delivery pipe 12, and then the gas flows into the remaining clamping air bags 8 through the conduit 9. Since gas is supplemented into the clamping air bag 8, the clamping air bag 8 will expand to a certain extent, and the inner side of the clamping air bag 8 will approach the test tube, thereby improving the clamping effect of the clamping air bag 8 on the test tube and further improving the clamping stability of the test tube.

[0031] Please refer to Figure 2 , wherein: a buffer pad 14 is fixedly connected to the inner wall of the storage hole 7, and the buffer pad 14 is a rubber layer.

[0032] In the present utility model, the arrangement of the buffer pad 14 can buffer the bottom of the test tube and avoid the situation of damage to the bottom end of the test tube, thereby improving the practicability of the device.

[0033] Please refer to Figure 1 and 3 , wherein: annularly distributed rotating rods 15 are embedded in the rotating block 2, both ends of the rotating rod 15 are rotatably connected to the rotating block 2, and the outer side of the rotating rod 15 is in contact with the base 1.

[0034] In the present utility model, the arrangement of the rotating rod 15 can reduce the friction between the rotating block 2 and the base 1, improve the smoothness of the device operation, and improve the practicability of the device.

[0035] Please refer to Figure 2 and 4 , wherein: an anti-collision pad 16 fixedly connected to the inner wall of the round hole 5 is embedded in the inner wall of the round hole 5, and the shape of the anti-collision pad 16 is arc-shaped.

[0036] In the present utility model, the anti-collision pad 16 is provided to protect the top of the test tube during the centrifugation process of the test tube. When the test tube moves upward, the top of the test tube will collide with the anti-collision pad 16, thereby avoiding the breakage of the test tube and improving the practicability of the device.

[0037] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, making equivalent substitutions or changes, should be covered by the protection scope of the present utility model.

Claims

1. A frame-type centrifugal swing arm, comprising a base (1), characterized in that: A rotating block (2) rotatably connected to the top of the base (1) is sleeved thereon. Frame (3) is fixedly connected to both the left and right sides of the rotating block (2). Object placing plates (4) are fixedly connected to both the left and right sides of the frame (3). Four circular holes (5) are formed in each of the two object placing plates (4). Object placing blocks (6) are rotatably connected to the inner walls of the eight circular holes (5). Object placing holes (7) are formed in each of the eight object placing blocks (6). Clamping air bags (8) are embedded in the inner walls of the eight object placing holes (7). A conduit (9) is fixedly connected between adjacent two object placing blocks (6). Motors (10) are fixedly connected to both the object placing plates (4). The output shafts of the four motors (10) are respectively fixedly connected to the four object placing blocks (6).

2. The frame-type centrifugal swing arm according to claim 1, characterized in that: Both ends of the conduit (9) respectively penetrate through the two object placing blocks (6) and are respectively communicated with the two clamping air bags (8). A cavity (11) is formed in the object placing plate (4). Two air delivery pipes (12) rotatably connected to the inner wall of the cavity (11) are communicated therewith. One ends of the two air delivery pipes (12) respectively penetrate through the two object placing blocks (6) and are respectively communicated with the two clamping air bags (8). An inflation mechanism (13) is arranged on the object placing plate (4).

3. The frame-type centrifugal rotating arm according to claim 2, characterized in that: The inflation mechanism (13) includes a lead screw (131). Both ends of the lead screw (131) are rotatably connected to the inner wall of the cavity (11). A piston plate (132) threadedly connected to the lead screw (131) is sleeved thereon. The outer side of the piston plate (132) is slidably connected to the inner wall of the cavity (11). One end of the lead screw (131) is inserted into the object placing plate (4) and rotatably connected thereto. A driving wheel (133) is fixedly connected to one end of the lead screw (131). The outer side of the driving wheel (133) is rotatably connected to the object placing plate (4).

4. A frame-type centrifugal rotating arm according to claim 1, characterized in that: A buffer pad (14) is fixedly connected to the inner wall of the object placing hole (7). The buffer pad (14) is a rubber layer.

5. A frame-type centrifugal swing arm according to claim 1, characterized in that: Rotating rods (15) distributed annularly are embedded in the rotating block (2). Both ends of the rotating rod (15) are rotatably connected to the rotating block (2). The outer side of the rotating rod (15) is in contact with the base (1).

6. The frame-type centrifugal rotating arm according to claim 1, characterized in that: An anti-collision pad (16) fixedly connected thereto is embedded in the inner wall of the circular hole (5). The shape of the anti-collision pad (16) is arc-shaped.

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