Suspension cell sampling device
By installing adjustment and protection devices on the dropper, the problem of inserting the dropper to the bottom of the bottle was solved, enabling reliable sampling of suspended cells and preventing liquid leakage, thus improving the effectiveness of the sampling device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NOXIDARON (TIANJIN) BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-21
AI Technical Summary
Existing droppers are prone to being inserted to the bottom of the bottle when sampling suspended cells, making it impossible to sample suspended cells.
A suspended cell sampling device was designed, including an adjustment device and a protective device. The adjustment device increases the friction between the dropper and the bottle wall through a threaded rod and an arc plate, and the protective device prevents liquid from flowing out through a spring and a protective cover.
This effectively avoids inserting the dropper to the bottom of the bottle, ensuring successful sampling of suspended cells and preventing liquid from flowing out after sampling, thus improving sampling efficiency and accuracy.
Smart Images

Figure CN224148047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of suspended cell sampling devices, and in particular to a suspended cell sampling device. Background Technology
[0002] A dropper is a device used to draw a portion of liquid from a larger volume of liquid. It is often used to sample suspended cells by inserting the dropper into the suspended cell solution to draw the sample.
[0003] The inventors discovered during their daily use of droppers that, when using ordinary droppers, they usually insert them directly into the liquid. If not careful, the dropper may drip to the bottom of the bottle, making it impossible to sample the liquid in the middle of the bottle. This could result in the inability to sample suspended cells, thus causing problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a suspended cell sampling device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a suspended cell sampling device, comprising a dropper, an adjustment device and a protective device provided on the surface of the dropper, the adjustment device comprising a rectangular groove formed on the surface of the dropper, a fixing rod fixedly connected to the inner wall of the rectangular groove, a slider slidably connected to the surface of the fixing rod, a groove formed on the side of the slider, a rectangular rod rotatably connected to the inside of the groove, a rectangular plate fixedly connected to the side of the slider, a threaded rod threadedly connected to the side of the rectangular plate, and an arc-shaped plate rotatably connected to one end of the threaded rod.
[0006] The effect achieved by the above components is as follows: under the action of the threaded rod, the arc plate is pressed against the surface of the dropper, thereby achieving the function of fixation. When it is necessary to sample the suspended cells, the dropper is inserted into the interior of the suspension to absorb the suspended cells suspended in the suspension, thereby achieving the function of sampling.
[0007] Preferably, a round rod is fixedly connected to the side of the arc-shaped plate, and the round rod is slidably connected to the surface of the rectangular plate.
[0008] The effect achieved by the above components is that, under the action of the round rod, the arc-shaped plate will not rotate with the rotation of the threaded rod.
[0009] Preferably, a round strip, which is a rubber strip, is fixedly connected to the side of the arc-shaped plate.
[0010] The effect achieved by the above components is that, under the action of the circular strip, the friction between the arc plate and the dropper increases, thereby achieving the effect of fixing.
[0011] Preferably, a locking rod is inserted into the side of the slider, and the locking rod is inserted into the interior of the rectangular rod.
[0012] The effect achieved by the above components is that the rectangular rod is fixed by the action of the clamp, thereby limiting the distance at which the dropper is inserted into the bottle.
[0013] Preferably, a first spring is sleeved on the surface of the lever, and the two ends of the first spring are fixedly connected to the side of the lever and the side of the slider, respectively.
[0014] The aforementioned components achieve the following effects: Under the action of the first spring, the locking lever is inserted into the rectangular rod in a self-locking manner. When sampling is required, the slider slides on the surface of the fixed rod. When the slider reaches the appropriate position, the threaded rod is turned, causing the arc-shaped plate to press against the surface of the dropper under the action of the round rod. Under the action of the round rod, the friction between the arc-shaped plate and the dropper increases, thereby achieving a fixing effect. The rectangular rod is rotated inside the groove, so that the rectangular rod and the slider are on the same plane. Under the action of the first spring, the locking lever is inserted into the rectangular rod in a self-locking manner, thus preventing the dropper from hitting the bottom of the bottle during sampling, thereby achieving an adjustment effect.
[0015] Preferably, the protective device includes a long groove formed on the surface of the dropper, a long rod fixedly connected inside the long groove, and a protective cover slidably connected to the surface of the long rod.
[0016] The effect achieved by the above-mentioned components is that, under the action of the protective cover, the liquid inside the dropper will not flow out after the sampling is completed, thereby avoiding the phenomenon of the sampled suspended cells flowing out.
[0017] Preferably, a second spring is sleeved on the surface of the long rod, and the two ends of the second spring are fixedly connected to the side of the protective cover and the inner wall of the long groove, respectively.
[0018] The effect achieved by the above components is that, under the action of the second spring, the protective cover can independently protect one end of the dropper, preventing the dropper from being squeezed and causing the liquid to flow out.
[0019] Preferably, a pad, which is a rubber plate, is fixedly connected to the inner wall of the long groove.
[0020] The aforementioned components achieve the following effects: the pad prevents the protective cover from impacting the inner wall of the long trough, thus avoiding rigid contact. After sampling, the second spring causes the protective cover to slide inside the long trough, covering one end of the dropper and preventing suspended cells from flowing out. The pad prevents the protective cover from impacting the inner wall of the long trough, thus avoiding rigid contact and achieving a protective effect.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting an adjustment device, when sampling is required, the slider slides on the surface of the fixed rod. When the slider reaches the appropriate position, the threaded rod is turned, causing the arc-shaped plate to press against the surface of the dropper under the action of the round rod. Under the action of the round rod, the friction between the arc-shaped plate and the dropper increases, thereby achieving the fixing effect. The rectangular rod is rotated inside the groove, so that the rectangular rod and the slider are on the same plane. Under the action of the first spring, the locking rod is inserted into the interior of the rectangular rod in a self-locking manner, thereby preventing the dropper from hitting the bottom of the bottle during sampling. This achieves the adjustment effect and solves the problem that the dropper may be inserted into the bottom of the bottle during use, making it impossible to sample suspended cells. Attached Figure Description
[0023] Figure 1 This invention provides a three-dimensional structural diagram of a suspended cell sampling device;
[0024] Figure 2 This invention provides a schematic diagram of the adjustment device for a suspended cell sampling device;
[0025] Figure 3 This invention provides a partial schematic diagram of the protective device for a suspended cell sampling device.
[0026] Figure 4 This is a schematic diagram of a protective device for a suspended cell sampling device proposed in this utility model.
[0027] Legend: 1. Dropper; 2. Adjusting device; 21. Rectangular groove; 22. Fixing rod; 23. Slider; 24. Rectangular rod; 25. Threaded rod; 26. Arc plate; 27. Round rod; 28. Clamping rod; 29. First spring; 210. Round bar; 3. Protective device; 31. Protective cover; 32. Long groove; 33. Second spring; 34. Pad. Detailed Implementation
[0028] Example 1, such as Figure 1-4As shown, a suspended cell sampling device includes a dropper 1, an adjustment device 2 and a protective device 3 on the surface of the dropper 1. When it is necessary to sample suspended cells, the dropper 1 is inserted into the interior of the suspension to draw up the suspended cells suspended in the suspension, thereby achieving the sampling function.
[0029] Reference Figure 2-3 The adjusting device 2 includes a rectangular groove 21 formed on the surface of the dropper 1. A fixing rod 22 is fixedly connected to the inner wall of the rectangular groove 21. A slider 23 is slidably connected to the surface of the fixing rod 22. A groove is formed on the side of the slider 23. A rectangular rod 24 is rotatably connected inside the groove. A rectangular plate is fixedly connected to the side of the slider 23. A threaded rod 25 is threadedly connected to the side of the rectangular plate. An arc-shaped plate 26 is rotatably connected to one end of the threaded rod 25. Under the action of the threaded rod 25, the arc-shaped plate 26 abuts against the surface of the dropper 1, thereby achieving a fixing effect. When it is necessary to adjust the suspended cells... During sampling, the dropper 1 is inserted into the suspension to absorb the suspended cells, thus achieving the sampling function. A round rod 27 is fixedly connected to the side of the arc-shaped plate 26. The round rod 27 slides on the surface of the rectangular plate. Under the action of the round rod 27, the arc-shaped plate 26 will not rotate with the rotation of the threaded rod 25. A round strip 210, which is a rubber strip, is fixedly connected to the side of the arc-shaped plate 26. Under the action of the round strip 210, the friction between the arc-shaped plate 26 and the dropper 1 increases, thus achieving the fixing function. Slider 2... A locking lever 28 is inserted into the side of the 3rd section of the rectangular rod 24. The locking lever 28 is inserted into the interior of the rectangular rod 24, fixing the rectangular rod 24 and limiting the distance the dropper 1 can be inserted into the bottle. A first spring 29 is fitted onto the surface of the locking lever 28. The two ends of the first spring 29 are fixedly connected to the side of the locking lever 28 and one side of the slider 23, respectively. Under the action of the first spring 29, the locking lever 28 is self-locking and inserted into the interior of the rectangular rod 24. When sampling is required, the slider 23 slides on the surface of the fixed rod 22. After positioning, the threaded rod 25 is turned, causing the arc-shaped plate 26 to press against the surface of the dropper 1 under the action of the round rod 27. Under the action of the round bar 210, the friction between the arc-shaped plate 26 and the dropper 1 increases, thereby achieving a fixing effect. The rectangular rod 24 is rotated inside the groove, so that the rectangular rod 24 and the slider 23 are on the same plane. Under the action of the first spring 29, the locking rod 28 is inserted into the rectangular rod 24 in a self-locking manner, thereby preventing the dropper 1 from hitting the bottom of the bottle when taking samples, thus achieving the adjustment effect.
[0030] Reference Figure 4The protective device 3 includes a long groove 32 formed on the surface of the dropper 1. A long rod is fixedly connected inside the long groove 32, and a protective cover 31 is slidably connected to the surface of the long rod. Under the action of the protective cover 31, the liquid inside the dropper 1 will not flow out after sampling, thus avoiding the phenomenon of sampled suspended cells flowing out. A second spring 33 is sleeved on the surface of the long rod. The two ends of the second spring 33 are fixedly connected to the side of the protective cover 31 and the inner wall of the long groove 32, respectively. Under the action of the second spring 33, the protective cover 31 can independently protect one end of the dropper 1, preventing the dropper 1 from being squeezed. To prevent liquid from flowing out, a pad 34 is fixedly connected to the inner wall of the long trough 32. The pad 34 is a rubber plate. Under the action of the pad 34, the protective cover 31 will not hit the inner wall of the long trough 32, avoiding rigid contact. After sampling, under the action of the second spring 33, the protective cover 31 slides inside the long trough 32, thereby covering one end of the dropper 1 and preventing the suspended cells inside the dropper 1 from flowing out. Under the action of the pad 34, the protective cover 31 will not hit the inner wall of the long trough 32, avoiding rigid contact, thus achieving the protective function.
[0031] Working principle: When the suspended cell sampling device is needed, the dropper 1 is inserted into the suspension to absorb the suspended cells, thus achieving the sampling function. When sampling is required, the slider 23 slides on the surface of the fixed rod 22. Once the slider reaches the appropriate position, the threaded rod 25 is turned, causing the arc-shaped plate 26 to press against the surface of the dropper 1 under the action of the round rod 27. Under the action of the round bar 210, the friction between the arc-shaped plate 26 and the dropper 1 increases, thus achieving a fixing effect. The rectangular rod 24 is then rotated inside the groove. The rectangular rod 24 and the slider 23 are on the same plane. Under the action of the first spring 29, the locking rod 28 is inserted into the rectangular rod 24 in a self-locking manner, thereby preventing the dropper 1 from hitting the bottom of the bottle during sampling, thus achieving the adjustment function. After sampling is completed, under the action of the second spring 33, the protective cover 31 slides inside the long groove 32, thereby covering one end of the dropper 1 and preventing the suspended cells inside the dropper 1 from flowing out. Under the action of the pad 34, the protective cover 31 will not hit the inner wall of the long groove 32, avoiding the phenomenon of rigid contact, thus achieving the protection function.
Claims
1. A suspended cell sampling device comprising a dropper (1), characterized in that: The surface of the dropper (1) is provided with an adjustment device (2) and a protective device (3). The adjustment device (2) includes a rectangular groove (21) formed on the surface of the dropper (1). A fixing rod (22) is fixedly connected to the inner wall of the rectangular groove (21). A slider (23) is slidably connected to the surface of the fixing rod (22). A groove is formed on the side of the slider (23). A rectangular rod (24) is rotatably connected inside the groove. A rectangular plate is fixedly connected to the side of the slider (23). A threaded rod (25) is threadedly connected to the side of the rectangular plate. An arc plate (26) is rotatably connected to one end of the threaded rod (25).
2. The suspended cell sampling device of claim 1, wherein: A round rod (27) is fixedly connected to the side of the arc-shaped plate (26), and the round rod (27) is slidably connected to the surface of the rectangular plate.
3. The suspended cell sampling device of claim 2, wherein: A round strip (210) is fixedly connected to the side of the arc plate (26), and the round strip (210) is a rubber strip.
4. The suspended cell sampling device of claim 3, wherein: A locking rod (28) is inserted into the side of the slider (23), and the locking rod (28) is inserted into the interior of the rectangular rod (24).
5. The suspended cell sampling device according to claim 4, characterized in that: A first spring (29) is sleeved on the surface of the lever (28), and the two ends of the first spring (29) are fixedly connected to the side of the lever (28) and the side of the slider (23).
6. The suspended cell sampling device of claim 5, wherein: The protective device (3) includes a long groove (32) formed on the surface of the dropper (1), a long rod is fixedly connected inside the long groove (32), and a protective cover (31) is slidably connected to the surface of the long rod.
7. The suspended cell sampling device of claim 6, wherein: A second spring (33) is sleeved on the surface of the long rod, and the two ends of the second spring (33) are fixedly connected to the side of the protective cover (31) and the inner wall of the long groove (32).
8. The suspended cell sampling device of claim 7, wherein: The inner wall of the long groove (32) is fixedly connected with a pad (34), which is a rubber plate.