Universal pipettor for connecting various containers
By incorporating an inverted frustum-shaped docking ring and an adjustable clamping ring, the design solves the problem that existing sample dispensers can only connect to a single container diameter, enabling universal connection to various containers and improving the adaptability of the sample dispenser.
Patent Information
- Application Number
- CN202522294841.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-30
AI Technical Summary
When connecting to different containers, the versatility of existing pipettes is limited to a single diameter, making it difficult to adapt to a universal quantitative pipette suitable for multiple containers.
A universal quantitative sampler that can connect to various containers was designed. It achieves tight connection to the ports of different containers through an inverted frustum-shaped docking ring, an adjustable clamping ring, and multiple elastic clamping components.
This allows the dispenser to adapt to various container ports, improving its flexibility and versatility.
Smart Images
Figure CN224926136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipettes, and more particularly to a universal quantitative pipette that can be connected to various containers. Background Technology
[0002] Existing piston-type samplers generally include a cylinder, handle, piston, and liquid inlet tube. When adding liquid samples, the piston is moved by the handle to achieve the function of liquid aspiration or sample addition.
[0003] However, when performing liquid aspiration or sample addition, it may be necessary to connect sample tubes of different diameters, such as blood vacuum tubes or fecal preservation tubes. Existing piston-type samplers generally can only connect to one type of sample tube, which limits their use.
[0004] Therefore, it is necessary to provide a new universal quantitative pipette that can connect to multiple containers to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a universal quantitative sampler that can be connected to various containers.
[0006] This utility model provides a universal quantitative sampler that can connect to multiple containers, including a syringe. A liquid inlet tube is fixedly connected to the end of the syringe. An inverted frustum-shaped docking ring is fixedly sleeved on the liquid inlet tube. A flexible sealing gasket is fixed to the outer wall of the docking ring. An installation ring is fixed on the docking ring and is coaxially arranged with the docking ring. A moving device is provided on the installation ring, and a clamping ring is installed on the moving device. The moving device can drive the clamping ring to move along the axis of the installation ring. A driving device is installed on the clamping ring, and multiple elastic clamping members distributed in a ring shape also movably pass through the clamping ring. The driving device can drive the multiple elastic clamping members to move towards the inlet tube.
[0007] Preferably, the moving device includes a first threaded ring, a first driven ring, and a plurality of support plates. The first threaded ring is threadedly sleeved on the mounting ring. The first driven ring is rotatably connected to the first threaded ring and is coaxial with the first threaded ring. A first guide block is fixed on the inner wall of the first driven ring and is slidably disposed in a first groove opened on the outer wall of the mounting ring. One end of each of the plurality of support plates is fixed on the first driven ring, and the other end of each of the plurality of support plates is fixed on a clamping ring.
[0008] Preferably, the driving device includes a second threaded ring, a second driven ring, and a plurality of first inclined plates. The second threaded ring is threadedly sleeved on the clamping ring. The second threaded ring is rotatably connected to the second driven ring and is coaxially arranged with the second threaded ring. A second guide block is fixed to the inner wall of the second driven ring. The second guide block is slidably arranged in a second groove opened on the outer wall of the clamping ring. One end of each of the plurality of first inclined plates is fixed to the second driven ring, and the other end of each of the plurality of first inclined plates is an inclined surface. The plurality of first inclined plates are respectively arranged corresponding to a plurality of elastic clamping elements.
[0009] Preferably, the elastic clamping member includes a second inclined plate, a spring, and an end plate. The second inclined plate movably passes through the outer wall of the clamping ring. One end of the second inclined plate is an inclined surface, and the inclined surface of the second inclined plate is in contact with the inclined surface of the first inclined plate. The end plate is fixed on the second inclined plate, and the two ends of the spring are respectively fixed on the end plate and the inner wall of the clamping ring.
[0010] Preferably, a plurality of hemispherical rubber blocks are fixed to the end of the second inclined plate away from the first inclined plate.
[0011] Preferably, the syringe includes a barrel, a handle, and a piston. The barrel is provided with graduation lines, the barrel is fixedly connected to the liquid inlet tube, the piston is movably disposed in the barrel, and the handle is fixedly connected to the piston.
[0012] Compared with related technologies, the universal quantitative sampler that can be connected to various containers provided by this utility model has the following advantages: The liquid inlet tube is placed inside the corresponding container. Since the docking ring has an inverted frustum-shaped structure, the flexible sealing gasket on the docking ring is in close contact with the container port. Then, according to the position of the port, the position of the clamping ring is adjusted by the moving device so that the clamping ring is located at the container port. Then, the driving device drives multiple elastic clamping elements to move towards the container port, thereby pressing one end of the elastic clamping element against the outer wall of the container. This application, through the inverted frustum-shaped docking ring, the position-adjustable clamping ring, and the multiple elastic clamping elements, enables the sampler to be connected to containers with multiple radius ports. Attached Figure Description
[0013] Figure 1 A schematic diagram of the structure of the universal quantitative sampler that can be connected to multiple containers provided by this utility model; Figure 2 for Figure 1 A cross-sectional structural diagram of the structure shown; Figure 3 for Figure 2 The diagram shows the structure at point A.
[0014] Labels in the diagram: 1. Fluid inlet pipe; 2. Connecting ring; 3. Flexible sealing gasket; 4. Mounting ring; 5. Piston; 6. Clamping ring; 7. First threaded ring; 8. First driven ring; 9. Support plate; 10. First guide block; 11. First slide groove; 12. Second threaded ring; 13. Second driven ring; 14. First inclined plate; 15. Second guide block; 16. Second slide groove; 17. Second inclined plate; 18. Spring; 19. End plate; 20. Rubber block; 21. Cylinder; 22. Handle. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Please refer to the following: Figures 1-3 ,in, Figure 1 A schematic diagram of the structure of the universal quantitative sampler that can be connected to multiple containers provided by this utility model; Figure 2 for Figure 1 A cross-sectional structural diagram of the structure shown; Figure 3 for Figure 2 The diagram shows the structure at point A.
[0017] In the specific implementation process, such as Figures 1-3 As shown, the device includes a syringe with a fluid inlet tube 1 fixedly connected to its end. An inverted frustum-shaped docking ring 2 is fixedly fitted onto the fluid inlet tube 1. A flexible sealing gasket 3 is fixed to the outer wall of the docking ring 2. A mounting ring 4 is fixed to the docking ring 2, coaxially arranged with the docking ring 2. A moving device is provided on the mounting ring 4, and a clamping ring 6 is mounted on the moving device. The moving device can drive the clamping ring 6 to move along the axis of the mounting ring 4. A driving device is mounted on the clamping ring 6, and multiple elastic clamping elements arranged in a ring shape movably pass through the clamping ring 6. The driving device can drive the multiple elastic clamping elements to move towards the inlet tube. In use, this device... The liquid inlet tube 1 is placed in the corresponding container. Since the docking ring 2 has an inverted frustum structure, the flexible sealing gasket 3 on the docking ring 2 is in close contact with the container port. Then, according to the position of the port, the position of the clamping ring 6 is adjusted by the moving device so that the clamping ring 6 is located at the container port. Then, the driving device drives multiple elastic clamping members to move towards the container port, thereby pressing one end of the elastic clamping member against the outer wall of the container. This application, through the inverted frustum-shaped docking ring 2, the position-adjustable clamping ring 6, and multiple elastic clamping members, enables the sampler to be connected to containers with multiple radius ports. It should be noted that the flexible sealing gasket 3 used in this application is made of butyl rubber or halogenated butyl rubber. The moving device includes a first threaded ring 7, a first driven ring 8, and multiple support plates 9. The first threaded ring 7 is threadedly sleeved on the mounting ring 4. The first driven ring 8 is rotatably connected to the first threaded ring 7 and is coaxial with the first threaded ring 7. A first guide block 10 is fixed on the inner wall of the first driven ring 8. The first guide block 10 is slidably disposed in the first groove 11 opened on the outer wall of the mounting ring 4. One end of each of the multiple support plates 9 is fixed on the first driven ring 8, and the other end of each of the multiple support plates 9 is fixed on the clamping ring 6. When the first threaded ring 7 is rotated, the first driven ring 8 moves along the axis of the mounting ring 4 because the first driven block is limited by the first guide block 10. The driving device includes a second threaded ring 12, a second driven ring 13, and a plurality of first inclined plates 14. The second threaded ring 12 is threadedly sleeved on the clamping ring 6. The second threaded ring 12 is rotatably connected to the second driven ring 13 and is coaxially arranged with the second threaded ring 12 and the second driven ring 13. A second guide block 15 is fixed on the inner wall of the second driven ring 13. The second guide block 15 is slidably arranged in the second groove 16 opened on the outer wall of the clamping ring 6. One end of each of the plurality of first inclined plates 14 is fixed on the second driven ring 13, and the other end of each of the plurality of first inclined plates 14 is an inclined surface. The plurality of first inclined plates 14 are respectively arranged corresponding to a plurality of elastic clamping elements. By rotating the second threaded ring 12, the second driven ring 13 is limited by the second guide block 15, so that the second driven ring 13 can drive the plurality of first inclined plates 14 to move along the axis of the clamping ring 6. The elastic clamping component includes a second inclined plate 17, a spring 18, and an end plate 19. The second inclined plate 17 movably passes through the outer wall of the clamping ring 6. One end of the second inclined plate 17 is an inclined surface, which is in contact with the inclined surface of the first inclined plate 14. The end plate 19 is fixed on the second inclined plate 17. The two ends of the spring 18 are respectively fixed on the end plate 19 and the inner wall of the clamping ring 6. A plurality of hemispherical rubber blocks 20 are fixed at the end of the second inclined plate 17 away from the first inclined plate 14. When the first inclined plate 14 moves, since the inclined surface of the second inclined plate 17 is in contact with the inclined surface of the first inclined plate 14, the first inclined plate 14 squeezes the second inclined plate 17, causing one end of the second inclined plate 17 to move toward the container port. The spring 18 is stretched, which facilitates the docking of the sampler with the container port. The syringe includes a barrel 21, a handle 22, and a piston 5. The barrel 21 is provided with graduation lines and is fixedly connected to the liquid inlet tube 1. The piston 5 is movably disposed inside the barrel 21, and the handle 22 is fixedly connected to the piston 5. The sampler can quantitatively aspirate or add samples through the graduation lines. By pulling the handle 22, the handle 22 drives the piston 5 to move, thereby realizing the function of aspirating or adding samples.
[0018] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A universal quantitative sampler that can be connected to various containers, including a syringe, wherein a liquid inlet tube (1) is fixedly connected to the end of the syringe, characterized in that, The inlet tube (1) is fixedly fitted with an inverted frustum-shaped docking ring (2), and a flexible sealing gasket (3) is fixed on the outer wall of the docking ring (2). An installation ring (4) is fixed on the docking ring (2), and the installation ring (4) is coaxially arranged with the docking ring (2). A moving device is provided on the installation ring (4), and a clamping ring (6) is installed on the moving device. The moving device can drive the clamping ring (6) to move along the axis of the installation ring (4). A driving device is installed on the clamping ring (6), and multiple elastic clamping members distributed in a ring shape also move through the clamping ring (6). The driving device can drive the multiple elastic clamping members to move towards the inlet tube.
2. The universal quantitative sampler capable of connecting to multiple containers according to claim 1, characterized in that, The moving device includes a first threaded ring (7), a first driven ring (8), and multiple support plates (9). The first threaded ring (7) is threaded onto the mounting ring (4). The first driven ring (8) is rotatably connected to the first threaded ring (7). The first driven ring (8) is coaxial with the first threaded ring (7). A first guide block (10) is fixed on the inner wall of the first driven ring (8). The first guide block (10) is slidably disposed in the first groove (11) opened on the outer wall of the mounting ring (4). One end of each of the multiple support plates (9) is fixed on the first driven ring (8), and the other end of each of the multiple support plates (9) is fixed on the clamping ring (6).
3. The universal quantitative sampler capable of connecting to multiple containers according to claim 1, characterized in that, The driving device includes a second threaded ring (12), a second driven ring (13), and a plurality of first inclined plates (14). The second threaded ring (12) is threaded onto the clamping ring (6). The second threaded ring (12) is rotatably connected to the second driven ring (13), and the second threaded ring (12) and the second driven ring (13) are coaxially arranged. A second guide block (15) is fixed on the inner wall of the second driven ring (13). The second guide block (15) is slidably arranged in the second slide groove (16) opened on the outer wall of the clamping ring (6). One end of each of the plurality of first inclined plates (14) is fixed on the second driven ring (13), and the other end of each of the plurality of first inclined plates (14) is an inclined surface. Each of the plurality of first inclined plates (14) is respectively arranged with a plurality of elastic clamping components.
4. The universal quantitative sampler capable of connecting to multiple containers according to claim 3, characterized in that, The elastic clamping member includes a second inclined plate (17), a spring (18), and an end plate (19). The second inclined plate (17) movably passes through the outer wall of the clamping ring (6). One end of the second inclined plate (17) is an inclined surface. The inclined surface of the second inclined plate (17) is in contact with the inclined surface of the first inclined plate (14). The end plate (19) is fixed on the second inclined plate (17). The two ends of the spring (18) are respectively fixed on the end plate (19) and the inner wall of the clamping ring (6).
5. The universal quantitative sampler capable of connecting to multiple containers according to claim 4, characterized in that, The second inclined plate (17) has a plurality of hemispherical rubber blocks (20) fixed at one end away from the first inclined plate (14).
6. The universal quantitative sampler capable of connecting to multiple containers according to claim 1, characterized in that, The syringe includes a barrel (21), a handle (22), and a piston (5). The barrel (21) is provided with scale lines. The barrel (21) is fixedly connected to the liquid inlet tube (1). The piston (5) is movably disposed inside the barrel (21). The handle (22) is fixedly connected to the piston (5).