Test tube rack with test tube fixing device
By setting retractable tubes and arc-shaped fastening blocks on the test tube rack to keep the test tubes vertical, combined with the design of the base groove and connecting tube, the problems of test tube rack tilting and instability are solved, and the stable stacking and separation of test tubes are achieved, improving the testing efficiency and safety.
Patent Information
- Application Number
- CN202423134354.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The existing test tube rack's round hole design makes the test tubes prone to tilting, leading to them falling off or leaking, and they are unstable when stacked, affecting testing efficiency and safety.
A telescopic tube is installed on the outside of the fixed circular hole of the test tube rack, and an arc-shaped fastening block is provided at the end. The arc-shaped fastening block is used to fasten the middle section of the test tube to keep it in a vertical state. At the same time, the base is provided with grooves and embedding slots, and the test tube rack can be stacked and separated by connecting tubes and protrusions.
This allows for stable vertical placement of test tubes, preventing tilting and falling, facilitating stacking and separation, and improving testing efficiency and safety.
Smart Images

Figure CN223530447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary tools technology, and more specifically to a test tube rack with a test tube fixing device. Background Technology
[0002] In medical biological testing, test tubes are essential testing tools, and test tube racks are the most basic experimental instruments in chemical laboratories used to hold and dry test tubes. Test tube racks generally have a base and a support frame, with a corresponding number of fixing seats and round holes. Test tubes are placed on the fixing seats and secured in the middle through the round holes to maintain an upright position. Existing test tube racks typically have round holes on the support frame that are wider than the test tubes to facilitate placement and retrieval. However, this can lead to a situation where test tubes are placed at an angle, making them prone to wobbling and hindering the stacking of the test tube racks. Stacking can cause structural instability between the racks and even leakage of liquid from the test tubes. However, laboratories need to stack several test tube racks together for unified removal and testing to improve efficiency. To address this, the inventors propose a test tube rack with a test tube fixing device. The device uses round holes to secure the test tubes, keeping them upright. Additionally, a fixing connection device is added to the test tube rack to facilitate stacking and easy retrieval by staff, thereby improving testing efficiency.
[0003] To address the issue of test tubes tilting when placed in a test tube rack, leading to them falling off or leaking, China Patent Network (CN221433140U) discloses a test tube rack for biological detection. This utility model includes a support, a first partition, a second partition, and a base plate. The first partition is located on the upper side of the support, and the second partition is spaced apart below it. The base plate is also spaced apart below the second partition. A baffle is fixed to the front side of the outer side of the support. The first partition has a first positioning hole, and the second partition has a cavity. A second positioning hole is vertically penetrating the second partition. A detachable limiting plate is installed inside the cavity. This limiting plate can move back and forth within the cavity of the second partition, thereby locking the test tubes in place through the limiting hole and the second positioning hole. This improves the stability of the test tubes and effectively prevents them from slipping out and breaking when the test tube rack tilts.
[0004] The solution still has some shortcomings in its application. In actual laboratory testing, several test tube racks are often stacked together and taken away by staff for testing. This improves testing efficiency and prevents errors caused by taking them away separately. At the same time, after the test tube racks are stacked and taken away together, the issue of easy separation needs to be considered. Therefore, the structure of the test tube rack needs to be improved so that the test tubes can be kept vertical to avoid tilting and falling off. It should also be easy to stack and separate, making it convenient for staff to use and improving the practicality of the test tube rack. Utility Model Content
[0005] The present invention discloses a test tube rack with a test tube fixing device, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the prior art.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A test tube rack with a test tube fixing device includes a test tube rack and test tubes. The test tube rack includes an integrally formed base and a fixing frame. The fixing frame has several rows of fixing circular holes. A fixing circle is provided on the outer side of the bottom of each fixing circular hole. A telescopic tube is installed on the four sides of the fixing circle. An arc-shaped fastening block is installed at the end of the telescopic tube. The arc-shaped fastening block can fasten the middle section of the test tube through the telescopic tube. The bottom of the base has several rows of downward-opening grooves and an embedding groove is provided in the middle of the left and right sides. A pressing groove is installed in the embedding groove. A button is provided on the outer side of the pressing groove. A connecting tube is installed in the middle of the top two sides of the fixing frame. An opening is provided on one side of the connecting tube. A protrusion is provided in the opening. The upper part of the connecting tube is embedded in the embedding groove and fixed by the protrusion embedding the pressing groove.
[0008] Furthermore, the base is equipped with handles on both the left and right sides.
[0009] Furthermore, the telescopic tube includes a main tube and a telescopic tube, the main tube having a built-in first spring, and the telescopic tube being able to extend and retract along the main tube via the first spring.
[0010] Furthermore, there are four arc-shaped fastening blocks, which abut against each other to form a fastening ring, which is used to fasten the middle section of the test tube.
[0011] Furthermore, the groove has a built-in rubber sleeve, and the groove is adapted to cover the opening at the top of the test tube.
[0012] Furthermore, the arc-shaped fastening block has a right-angled trapezoidal structure that gradually rises from the middle to the outside.
[0013] Furthermore, the connecting tube has a built-in second spring, which is located on the rear side of the protrusion. The protrusion can extend and retract along the opening through the second spring. The protrusion is correspondingly arranged with the button and can retract inward by pressing the button.
[0014] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0015] This invention firstly features a fixing circle on the outer side of each fixing hole on the fixing frame. A telescopic tube is attached to the four sides of each fixing circle, and an arc-shaped fastening block is attached to the end of each telescopic tube. These four arc-shaped fastening blocks are arranged in a circle with a diameter smaller than the fixing circle. The arc-shaped fastening blocks secure the middle section of the test tube, keeping it vertical and preventing tilting, thus preparing it for subsequent stacking of the test tube rack. Next, the base of the test tube rack has corresponding grooves for embedding the openings at the top of the test tubes. Simultaneously, embedding slots are provided in the middle of both sides of the test tube rack. Connecting tubes are correspondingly installed on the fixing frame of the test tube rack. The stacking and fixing of two test tube racks is achieved by embedding the connecting tubes into the embedding slots and by embedding the protrusions on the connecting tubes into the pressing slots of the embedding slots. The structure is stable, will not fall off, and is easy for staff to remove as a whole. Finally, the test tube rack can be separated by pressing a button to retract the protrusions inward. The operation is simple and convenient. This invention has a novel structure and ingenious design, enabling vertical placement of test tubes and rapid stacking and separation of test tube racks. It is highly practical and suitable for widespread application. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present invention.
[0017] Figure 2 This is a front view structural diagram of the connection between the embedded groove and the connecting pipe of this utility model.
[0018] Figure 3 This is a bottom view of the mounting bracket of this utility model.
[0019] Figure 4 This is a bottom view of the fixing circle, telescopic tube, and arc-shaped fastening block on the fixing frame of this utility model. Figure 1 (Arc-shaped fasteners in merged state).
[0020] Figure 5 This is a bottom view of the fixing circle, telescopic tube, and arc-shaped fastening block on the fixing frame of this utility model. Figure 2 (The arc-shaped fastener is in the open state.) Detailed Implementation
[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0022] like Figures 1 to 5As shown, a test tube rack with a test tube fixing device includes a test tube rack 1 and test tubes 2. The test tube rack 1 includes an integrally formed base 3 and a fixing frame 4. The fixing frame 4 has several rows of fixing round holes 5. The bottom outer side of the fixing round holes 5 has a fixing circle 6. The four sides of the fixing circle 6 are equipped with telescopic tubes 7. The end of the telescopic tube 7 is equipped with an arc-shaped fastening block 8. The arc-shaped fastening block 8 can fasten the middle section of the test tube 2 through the telescopic tube 7. The bottom of the base 3 has several rows of downward-opening grooves 9 and the middle of the left and right sides has an embedding groove 10. The embedding groove 10 is equipped with a pressing groove 11. The outside of the pressing groove 11 is equipped with a button 12. The middle of the top two sides of the fixing frame 4 are equipped with connecting tubes 13. One side of the connecting tube 13 has an opening with a protrusion 14. The upper part of the connecting tube 13 is embedded in the embedding groove 10 and is fixed by embedding the pressing groove 11 through the protrusion 14.
[0023] Furthermore, the base 2 is provided with handles 15 on the left and right sides.
[0024] Furthermore, the telescopic tube 7 includes a main tube 71 and a telescopic tube 72. The main tube 71 has a built-in first spring 73, and the telescopic tube 72 can extend and retract along the main tube 71 via the first spring 73.
[0025] Furthermore, there are four arc-shaped fastening blocks 8, which abut against each other to form a fastening ring, which is used to fasten the middle section of the test tube 2.
[0026] Furthermore, the groove 9 has a built-in rubber sleeve, and the groove 9 is adapted to cover the opening at the top of the test tube 2.
[0027] Furthermore, the arc-shaped fastening block 8 has a right-angled trapezoidal structure that gradually rises from the middle to the outside.
[0028] Furthermore, the connecting tube 13 has a built-in second spring (not shown in the schematic diagram due to viewing angle). The second spring is located on the rear side of the protrusion 14. The protrusion 14 can extend and retract along the opening through the second spring. The protrusion 14 is correspondingly arranged with the button 12 and can retract inward by being squeezed by the button 12.
[0029] [Example]
[0030] First, several test tube racks 1 are placed separately, and test tubes 2 containing liquid are inserted downwards from the fixing rack 4 and placed on the base 3. When the test tube 2 is inserted, the arc-shaped fastening block 8 at the bottom of the fixing hole 5 is squeezed downwards and expands outwards. The telescopic tube 72 of the telescopic tube 7 is inserted into the main tube 71. At the same time, the first spring 73 is compressed and stores energy. After the test tube 2 is placed, the arc-shaped fastening block 8 clamps the test tube 2 through the first spring 73, and the compression is applied from all four sides simultaneously to ensure that the test tube 2 is in a vertical position. Next, after all the test tubes 2 are installed in the test tube rack 1, several test tube racks 1 are stacked. The connecting tube 13 on the fixing frame 4 is embedded into the embedding groove 10 of the base 3, and the protrusion 14 on the connecting tube 13 is embedded into the pressing groove 11 of the embedding groove 10 to fix it. At this time, the top of the test tube 2 is fitted into the groove 9 on the base 3 one by one to complete the stacking of the test tube rack 1. Finally, press the button 12 to press the protrusion 14 until it is flush with the outer wall of the connecting tube 13 to separate the test tube rack 1. The operation is simple and convenient.
[0031] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0032] This invention firstly features a fixing circle on the outer side of each fixing hole on the fixing frame. A telescopic tube is attached to the four sides of each fixing circle, and an arc-shaped fastening block is attached to the end of each telescopic tube. These four arc-shaped fastening blocks are arranged in a circle with a diameter smaller than the fixing circle. The arc-shaped fastening blocks secure the middle section of the test tube, keeping it vertical and preventing tilting, thus preparing it for subsequent stacking of the test tube rack. Next, the base of the test tube rack has corresponding grooves for embedding the openings at the top of the test tubes. Simultaneously, embedding slots are provided in the middle of both sides of the test tube rack. Connecting tubes are correspondingly installed on the fixing frame of the test tube rack. The stacking and fixing of two test tube racks is achieved by embedding the connecting tubes into the embedding slots and by embedding the protrusions on the connecting tubes into the pressing slots of the embedding slots. The structure is stable, will not fall off, and is easy for staff to remove as a whole. Finally, the test tube rack can be separated by pressing a button to retract the protrusions inward. The operation is simple and convenient. This invention has a novel structure and ingenious design, enabling vertical placement of test tubes and rapid stacking and separation of test tube racks. It is highly practical and suitable for widespread application.
[0033] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.
Claims
1. A test tube rack with a test tube fixing device, characterized in that: The device includes a test tube rack and test tubes. The test tube rack includes an integrally formed base and a fixing frame. The fixing frame has several rows of fixing holes, and a fixing circle is provided on the outer side of the bottom of each fixing hole. A telescopic tube is installed on the four sides of the fixing circle, and an arc-shaped fastening block is installed at the end of each telescopic tube. The arc-shaped fastening block can fasten the middle section of the test tube through the telescopic tube. The bottom of the base has several rows of downward-opening grooves, and there is an embedding groove in the middle of the left and right sides. A pressing groove is installed in the embedding groove, and a button is provided on the outer side of the pressing groove. A connecting tube is installed in the middle of the top two sides of the fixing frame. One side of the connecting tube has an opening with a protrusion. The upper part of the connecting tube is embedded in the embedding groove and is fixed by the protrusion embedding the pressing groove.
2. The test tube rack with a test tube fixing device according to claim 1, characterized in that: The base has handles on both the left and right sides.
3. The test tube rack with a test tube fixing device according to claim 1, characterized in that: The telescopic tube includes a main tube and a telescopic tube. The main tube has a built-in first spring, and the telescopic tube can extend and retract along the main tube by means of the first spring.
4. The test tube rack with a test tube fixing device according to claim 1, characterized in that: There are four arc-shaped fastening blocks, which abut against each other to form a fastening ring, which is used to fasten the middle section of the test tube.
5. A test tube rack with a test tube fixing device according to claim 1, characterized in that: The groove has a built-in rubber sleeve, and the groove is adapted to cover the opening at the top of the test tube.
6. A test tube rack with a test tube fixing device according to claim 1, characterized in that: The arc-shaped fastening block has a right-angled trapezoidal structure that gradually rises from the middle to the outside.
7. A test tube rack with a test tube fixing device according to claim 1, characterized in that: The connecting tube has a built-in second spring, which is located on the rear side of the protrusion. The protrusion can extend and retract along the opening through the second spring. The protrusion is correspondingly arranged with the button and can retract inward by pressing the button.
Citation Information
Patent Citations
Test tube rack for biological detection
CN221433140U