A centrifuge tube rack to prevent incorrect or missing additions

Abstract

This utility model relates to the field of centrifuge rack technology, specifically a centrifuge tube rack to prevent incorrect or missing addition of centrifuge tubes. It includes a tube groove, a self-locking structure, a locking head, and locking posts. The self-locking structure includes a button and a base. The lower end of the button is inserted into the base, and the button is located below the tube groove. The tube groove applies force to the button to change its height, thereby changing the height of the placed centrifuge tubes. The upper end of the locking head has a locking groove with a V-shaped structure, used to lock and fix the tube groove, changing the height of the tube groove and centrifuge tubes. The locking posts are engaged at different positions on the locking head to change the state of the tube groove, placing it at different heights. This utility model can easily distinguish between centrifuge tubes without samples and centrifuge tubes with samples.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge tube technology, specifically a centrifuge tube rack to prevent incorrect or missing addition of centrifuge tubes. Background Technology

[0002] In scientific research experiments, samples or reagents are often placed individually in centrifuge tubes, which are typically placed on centrifuge tube racks. Each time samples or reagents are retrieved or added, the uniformity of the centrifuge tubes and the large quantity often lead to errors such as incorrect addition or omission. To avoid experimental failures caused by these operational errors, operators often devise ingenious methods, such as writing down the sample or reagent number on paper and checking off the corresponding number after each addition. However, such methods are often ineffective because they do not address the root cause. The fundamental problem lies in the fact that the centrifuge tube racks are so neatly arranged that it is difficult to visually distinguish between identical centrifuge tubes with and without samples added. Utility Model Content

[0003] The purpose of this utility model is to provide a centrifuge tube rack that prevents incorrect or missing additions, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge tube rack to prevent incorrect or missing additions, comprising a tube groove, the upper end of which is used to place centrifuge tubes, to support the centrifuge tubes, and to adjust their height; the centrifuge tube rack to prevent incorrect or missing additions further includes: The self-locking structure includes a button and a base. The lower end of the button is inserted into the base. The button is located below the tube groove. The tube groove applies a force to the button to change the height of the button and thus the height of the centrifuge tube. The locking head has a locking groove at its upper end. The locking groove has a V-shaped structure and is used to lock and fix the tube groove, thereby changing the height of the tube groove and the centrifuge tube. The locking pin is engaged at different positions on the locking head to change the state of the pipe groove, so that the pipe groove is located at different heights.

[0005] Preferably, the lower end of the tube groove is provided with a button slot, and the upper end of the button is provided with a protrusion. The upper protrusion of the button in the button slot engages with each other to position and fix the button and the tube groove to each other.

[0006] Preferably, a spring is provided between the button and the base. When a force is applied to the tube groove, the button compresses the spring, causing the spring to deform and changing the position of the locking pin.

[0007] Preferably, a guide block is fixedly connected inside the button. The guide block has a triangular structure and is used to guide the movement of the locking pin, so that the locking pin moves in a single direction.

[0008] Preferably, the centrifuge tube rack for preventing incorrect or missing additions further includes a base plate and a cover plate. The self-locking structure and the tube groove are located between the base plate and the cover plate. The base plate has multiple tube grooves in the middle. The lower end of each tube groove has a self-locking structure groove. The lower end of the self-locking structure is inserted into the self-locking structure groove. The tube groove is inserted into the tube groove. The cover plate has a tube hole in the middle. The inner wall of the tube hole has a limiting groove. The middle of the tube groove has a limiting boss. The limiting boss is engaged with the limiting groove. Screw holes A are distributed around the base plate and in the middle. Screw holes B are distributed around the cover plate and in the middle.

[0009] Preferably, the button has a locking cavity inside, a support plate is fixedly connected inside the base, the locking head is fixedly connected to the upper end of the support plate, the locking head is located inside the locking cavity, the width of the locking head is greater than the width of the support plate, and the guide block is fixedly connected to the upper inner wall of the locking cavity.

[0010] Preferably, the lower end of the guide block is located at the locking groove, and there is an offset between the bottom of the guide block and the corner of the locking groove, which is used to change the moving direction of the locking pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by pressing the centrifuge tube, the height of the centrifuge tube can be changed. When a sample is added to the centrifuge tube, the height of the centrifuge tube is changed, thereby creating a height difference between the centrifuge tube without sample and the centrifuge tube with sample, thus separating the two and achieving a better separation effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional connection of the centrifuge tube rack.

[0013] Figure 2 These are the three views of a centrifuge tube rack.

[0014] Figure 3 This is a schematic diagram of the internal connections of the centrifuge tube rack.

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the base plate.

[0016] Figure 5 This is a diagram showing the connection between the button and the base.

[0017] Figure 6 These are the three views of the pipe trench.

[0018] Figure 7 This is a schematic diagram of the three-dimensional structure of the base plate.

[0019] Figure 8 This is a schematic diagram of the 3D structure of the button.

[0020] In the diagram: 1. Base plate, 2. Self-locking structure, 3. Pipe groove, 4. Cover plate, 5. Self-locking structure groove, 6. Pipe groove groove, 7. Screw hole A, 8. Base, 9. Button, 10. Spring, 11. Self-locking buckle, 111. Support plate, 112. Locking head, 113. Locking groove, 114. Guide block, 115. Locking post, 12. Centrifugal tube groove, 13. Button slot, 14. Limiting boss, 15. Pipe groove hole, 16. Limiting groove, 17. Screw hole B. Detailed Implementation

[0021] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Please see Figure 1-8 This utility model provides a technical solution: a centrifuge tube rack to prevent incorrect or missing additions, including a tube groove 3. The upper end of the tube groove 3 is used to place centrifuge tubes, to support the centrifuge tubes, and to adjust the height. The centrifuge tube rack to prevent incorrect or missing additions also includes: The self-locking structure 2 includes a button 9 and a base 8. The lower end of the button 9 is inserted into the base 8. The button 9 is located below the tube groove 3. The tube groove 3 applies a force to the button 9 to change the height of the button 9 and to change the height of the placed centrifuge tube. The locking head 112 has a locking groove 113 at its upper end. The locking groove 113 has a V-shaped structure and is used to lock and fix the tube groove 3, thereby changing the height of the tube groove 3 and the centrifuge tube. Locking pin 115 is engaged at different positions on locking head 112 to change the state of pipe groove 3 so that pipe groove 3 is located at different heights.

[0023] The lower end of the tube groove 3 is provided with a button slot 13, and the upper end of the button 9 is provided with a protrusion. The upper end protrusion of the button 9 in the button slot 13 is engaged with each other to fix the button 9 and the tube groove 3 in a mutually positioning manner.

[0024] A spring 10 is provided between the button 9 and the base 8. When a force is applied to the tube groove 3, the button 9 squeezes the spring 10, causing the spring 10 to deform and change the position of the locking post 115. A guide block 114 is fixedly connected inside the button 9. The guide block 114 has a triangular structure and is used to guide the movement of the locking post 115, so that the locking post 115 moves in a single direction. When the centrifuge tube is filled with a sample, the locking post 115 moves by pressing the centrifuge tube. The guide block 114 restricts the movement direction of the locking post 115, so that the centrifuge tube can return to its original position after being pressed a second time.

[0025] The centrifuge tube rack for preventing incorrect or missing additions also includes a base plate 1 and a cover plate 4. A self-locking structure 2 and a tube groove 3 are located between the base plate 1 and the cover plate 4. The base plate 1 has multiple tube grooves 6 in the middle. The lower end of the tube groove 6 has a self-locking structure groove 5. The lower end of the self-locking structure 2 is inserted into the self-locking structure groove 5. The tube groove 3 is inserted into the tube groove 6. The cover plate 4 has a tube hole 15 in the middle. The centrifuge tube passes through the tube hole 15 and is inserted into the tube groove 3. The inner wall of the tube hole 15 has a limiting groove 16. The tube groove 3 has a limiting boss 14 in the middle. The limiting boss 14 is engaged with the limiting groove 16. The base plate 1 has screw holes A7 distributed around its perimeter and in the middle. The cover plate 4 has screw holes B17 distributed around its perimeter and in the middle. The base 8 is inserted into the self-locking structure groove 5. The tube groove 3 and the button 9 are then engaged with each other. The base plate 1 and the cover plate 4 are installed together through the screw holes A7 and B17.

[0026] Button 9 has a locking cavity inside. A support plate 111 is fixedly connected inside the base 8. A locking head 112 is fixedly connected to the upper end of the support plate 111 and is located inside the locking cavity. The width of the locking head 112 is greater than the width of the support plate 111. A guide block 114 is fixedly connected to the upper inner wall of the locking cavity. The lower end of the guide block 114 is located at the locking groove 113. There is an offset between the lowermost part of the guide block 114 and the corner of the locking groove 113 to change the moving direction of the locking pin 115. When button 9 is pressed, locking pin 115 moves along the side wall of locking head 112. When the centrifuge tube is pressed for the first time, locking pin 115 moves above locking groove 113. Due to the reset of spring 10, locking pin 115 locks into groove 113. When the centrifuge tube is pressed again, due to the guide limit of guide block 114, locking pin 115 moves in a single direction, thereby resetting locking pin 115. Thus, pressing the centrifuge tube can change the height of button 9 and centrifuge tube.

[0027] Place the centrifuge tube in the centrifuge tube slot 12. While adding the sample using a pipette, align your left hand with the centrifuge tube to be added, open the centrifuge tube and press it down. The slot 3 will forcefully act on the self-locking structure 2, the spring 10 will contract, and the self-locking buckle 11 will lock in the low position. The slot 3 will also fall to the low position. Therefore, after adding the sample to the centrifuge tube, it will appear to be a small step lower than other centrifuge tubes. After adding all the centrifuge tubes in sequence, all centrifuge tubes will be in the low position. When adding another sample, press the centrifuge tube again. The slot 3 will transmit the force to the self-locking structure 2, and the spring 10 and the self-locking buckle 11 will rebound. The button 9 and the slot 3 will return to their original positions. At this time, the centrifuge tube with the sample added will be a small step higher than the centrifuge tubes without the sample added.

[0028] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mistake-proofing, tip-proofing, and off-centering rack for centrifuge tubes, comprising a tube slot, an upper end of the tube slot being used to place a centrifuge tube, used to support the centrifuge tube, and capable of changing height, characterized in that: The centrifuge tube rack for preventing incorrect or missing additions also includes: ​ The self-locking structure includes a button and a base. The lower end of the button is inserted into the base. The button is located below the tube groove. The tube groove applies a force to the button to change the height of the button and thus the height of the centrifuge tube. The locking head has a locking groove at its upper end. The locking groove has a V-shaped structure and is used to lock and fix the tube groove, thereby changing the height of the tube groove and the centrifuge tube. The locking pin is engaged at different positions on the locking head to change the state of the pipe groove, so that the pipe groove is located at different heights.

2. The mistake-proofing, misloading, and mispiping centrifuge tube rack of claim 1, wherein: The lower end of the tube groove is provided with a button slot, the upper end of the tube groove is provided with a centrifugal tube groove, the upper end of the button is provided with a protrusion, and the upper protrusion of the button in the button slot is engaged with each other to position and fix the button and the tube groove to each other.

3. The mistake-proofing, skip-addition, centrifuge tube rack of claim 1, wherein: A spring is provided between the button and the base. When a force is applied to the tube groove, the button compresses the spring, causing the spring to deform and changing the position of the locking pin.

4. The mistake-proofing, skip-addition, skip- centrifuge tube rack of claim 3, wherein: The button has a guide block fixedly connected inside. The guide block has a triangular structure and is used to guide the movement of the locking pin, so that the locking pin moves in a single direction.

5. The mistake-proofing, skip-addition, skip- centrifuge tube rack of claim 1, wherein: The centrifuge tube rack for preventing incorrect or missing additions also includes a base plate and a cover plate. The self-locking structure and the tube groove are located between the base plate and the cover plate. The base plate has multiple tube grooves in the middle. The lower end of each tube groove has a self-locking structure groove. The lower end of the self-locking structure is inserted into the self-locking structure groove. The tube groove is inserted into the tube groove. The cover plate has a tube hole in the middle. The inner wall of the tube hole has a limiting groove. The tube groove has a limiting boss in the middle. The limiting boss is engaged with the limiting groove. Screw holes A are distributed around the base plate and in the middle. Screw holes B are distributed around the cover plate and in the middle.

6. The mistake-proofing, skip-addition, skip- subtraction, centrifuge tube rack of claim 4, wherein: The button has a locking cavity inside, and a support plate is fixedly connected inside the base. The locking head is fixedly connected to the upper end of the support plate and is located inside the locking cavity. The width of the locking head is greater than the width of the support plate, and the guide block is fixedly connected to the upper inner wall of the locking cavity.

7. The mistake-proofing, skip-addition, skip- subtraction, centrifuge tube rack of claim 4, wherein: The lower end of the guide block is located at the locking groove, and there is an offset between the bottom of the guide block and the corner of the locking groove, which is used to change the moving direction of the locking pin.

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