Rapid mounting tool for filter membrane of injector
By designing a quick-installation tool for syringe filter membranes, and utilizing the sliding connection of a push plate and a pull plate, the time-consuming and labor-intensive problems in existing technologies are solved, enabling rapid installation of syringe filter membranes and improving operational efficiency.
Patent Information
- Application Number
- CN202520413366.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The installation process of existing syringe filter membranes is time-consuming and laborious, requiring manual removal and installation of the piston rod, which makes operation inconvenient.
A syringe filter membrane quick installation tool was designed, including a base, a lower mold and an upper mold. Through the cooperation of the limiting groove and the connecting plate, and the sliding connection of the push plate and the pull plate, the piston rod can be automatically pulled out and the filter membrane can be quickly installed.
It enables rapid installation of syringe filter membranes, is simple to operate, saves time and effort, and improves installation efficiency.
Smart Images

Figure CN223790393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of assembly tool technology, specifically to a syringe filter membrane quick installation tool. Background Technology
[0002] Currently, when using syringe filter membranes, the syringe plunger must first be pulled out, and the syringe filter membrane must be manually connected to the syringe connector. A tight seal must be applied to ensure a good seal and prevent leakage or detachment when the sample is ejected. Then, liquid is poured into the syringe, the plunger is reattached, and the liquid is pressed through the syringe filter membrane before flowing out. Manually pulling out the plunger and installing the syringe filter membrane is time-consuming and laborious; therefore, a tool that allows for rapid installation of syringe filter membranes is urgently needed. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a quick installation tool for syringe filter membranes.
[0004] To solve the above-mentioned technical problems, the present invention provides a quick-installation tool for a syringe filter membrane: comprising a base, a lower mold, and an upper mold; the lower mold includes a lower module one and a lower module two, and the upper mold includes an upper module one and an upper module two; the lower module one and the upper module one have mutually cooperating limiting grooves on their respective inner sides, which are adapted to the syringe filter membrane; the lower module two and the upper module two have mutually cooperating limiting grooves on their respective inner sides, which are adapted to the syringe tubing; and a space is left between the lower module one and the lower module two. The length of the lower module 2 is less than the length of the syringe tube. Multiple limiting grooves are provided, and the number of limiting grooves 2 is the same as the number of limiting grooves 1, with each corresponding to the other. One end of the lower mold is rotatably connected to one end of the upper mold. The upper module 1 and upper module 2 are fixedly connected together by a connecting plate. A push plate is slidably connected to the connecting plate, and the lower end of the push plate has a groove 1 that mates with the ear plate on the syringe tube. A pull plate is slidably connected to the connecting plate, and the lower end of the pull plate has a groove 2 that mates with the pressure plate on the syringe rod.
[0005] Furthermore, a sliding rod is symmetrically slidably connected to one end of the connecting plate from the middle to both sides. One end of the sliding rod is fixedly connected to the push plate. A spring is sleeved on the sliding rod. One end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the push plate.
[0006] A sliding rod 2 is symmetrically slidably connected to one end of the connecting plate along the middle to both sides. One end of the sliding rod 2 is fixedly connected to the pull plate. A spring 2 is sleeved on the sliding rod 2. One end of the spring 2 is fixedly connected to the connecting plate, and the other end of the spring 2 is fixedly connected to the pull plate.
[0007] Furthermore, an L-shaped plate is fixedly connected to the upper end of the push plate, and an L-shaped plate is fixedly connected to the upper end of the pull plate. The vertical plates of the L-shaped plate and the L-shaped plate are both arranged to face outwards.
[0008] The advantages of this utility model compared with the prior art are as follows: This utility model only requires placing the syringe filter membrane and syringe on the lower mold, and after closing the upper mold, multiple piston rods can be pulled out at one time by pulling the pull plate, and multiple syringe filter membranes can be installed at the same time by pushing the push plate. The operation is simple and convenient, saving time and effort. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of a syringe filter membrane quick installation tool according to this utility model. Figure 1 .
[0010] Figure 2 This is a schematic diagram of the structure of a syringe filter membrane quick installation tool according to this utility model. Figure 2 .
[0011] As shown in the figure:
[0012] 1. Base, 2. Lower Module 1, 3. Lower Module 2, 4. Upper Module 1, 5. Upper Module 2, 6. Limiting Groove 1, 7. Limiting Groove 2, 8. Connecting Plate, 9. Push Plate, 10. Groove 1, 11. Pull Plate, 12. Groove 2, 13. Slide Rod 1, 14. Spring 1, 15. Slide Rod 2, 16. Spring 2, 17. L-shaped Plate 1, 18. L-shaped Plate 2. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0014] Example 1, in conjunction with Appendix Figure 1-2A quick-installation tool for a syringe filter membrane includes a base 1, a lower mold, and an upper mold. The lower mold includes a lower module 2 and a lower module 3, and the upper mold includes an upper module 4 and an upper module 5. The lower module 2 and the upper module 4 have mutually cooperating limiting grooves 6 on their respective inner sides, which are adapted to the syringe filter membrane. The lower module 3 and the upper module 5 have mutually cooperating limiting grooves 7 on their respective inner sides, which are adapted to the syringe tubing. A distance is left between the lower module 2 and the lower module 3, and the lower module 3 has a shorter length. For the length of the syringe tube, multiple limiting grooves 6 are provided, and the number of limiting grooves 7 is the same as that of limiting grooves 6 and they correspond one-to-one; one end of the lower mold is rotatably connected to one end of the upper mold, and the upper module 4 and the upper module 5 are fixed together by a connecting plate 8; a push plate 9 is slidably connected to the connecting plate 8, and the lower end of the push plate 9 is provided with a groove 10 that cooperates with the ear plate on the syringe tube; a pull plate 11 is slidably connected to the connecting plate 8, and the lower end of the pull plate 11 is provided with a groove 12 that cooperates with the pressure plate on the syringe rod.
[0015] In use, place the syringe filter membrane in the limiting groove 6 of the lower module 1, and the syringe tube in the limiting groove 7 of the lower module 2. Close the upper mold and apply pressure with one hand, while pulling the pull plate 11 outward with the other hand. The pull plate 11 moves. Initially, the piston rod is in the groove 12. When the pull plate 11 moves to the piston rod pressure plate position, the pull plate 11 will contact the piston rod pressure plate. Continue pulling the pull plate 11 to pull the piston rod out of the syringe tube. Similarly, use the thumb or other fingers of the hand pressing the upper mold to press the push plate 9. When the push plate 9 moves to the ear plate position on the syringe tube, the push plate 9 contacts the ear plate on the syringe tube. Continue pressing to move the syringe tube, thus achieving quick installation of the syringe tube and syringe filter membrane.
[0016] In this specific embodiment, a slide rod 13 is symmetrically slidably connected to one end of the connecting plate 8 along the middle to both sides. One end of the slide rod 13 is fixedly connected to the push plate 9. A spring 14 is sleeved on the slide rod 13. One end of the spring 14 is fixedly connected to the connecting plate 8, and the other end of the spring 14 is fixedly connected to the push plate 9.
[0017] A sliding rod 15 is symmetrically slidably connected to one end of the connecting plate 8 along its center to both sides. One end of the sliding rod 15 is fixedly connected to the pull plate 11. A spring 16 is sleeved on the sliding rod 15. One end of the spring 16 is fixedly connected to the connecting plate 8, and the other end of the spring 16 is fixedly connected to the pull plate 11. Thus, after installation, when the finger is loosened, the push plate 9 returns to its original position under the elastic force of the spring 14, and the pull plate 11 returns to its original position under the pulling force of the spring 16, facilitating the next round of work.
[0018] Furthermore, an L-shaped plate 17 is fixedly connected to the upper end of the push plate 9, and an L-shaped plate 18 is fixedly connected to the upper end of the pull plate 11. The vertical plates of the L-shaped plate 17 and the L-shaped plate 18 are both arranged to face outwards, which facilitates the application of force and makes operation convenient.
[0019] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0020] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0021] In the description of the embodiments of this utility model, "a plurality of" means at least two.
[0022] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A syringe filter quick installation tool characterized by: Base (1), lower die, upper die are included; The opposite inner side of the lower die module one (2) and the upper die module one (4) is equipped with the limit slot one (6) which is matched with each other and matched with the filter membrane of the syringe, the opposite inner side of the lower die module two (3) and the upper die module two (5) is equipped with the limit slot two (7) which is matched with each other and matched with the tube body of the syringe, the distance is left between the lower die module one (2) and the lower die module two (3), the length of the lower die module two (3) is less than the length of the tube body of the syringe, the limit slot one (6) is equipped with multiple, the number of the limit slot two (7) is same with the number of the limit slot one (6) and they are one-to-one corresponding; The one end of the lower die and the one end of the upper die are rotationally connected, the upper die module one (4) and the upper die module two (5) are fixedly connected through the connecting plate (8); The connecting plate (8) is slidably connected with the push plate (9), the lower end of the push plate (9) is equipped with the recess one (10) matched with the ear plate on the tube body of the syringe, the connecting plate (8) is slidably connected with the pull plate (11), the lower end of the pull plate (11) is equipped with the recess two (12) matched with the pressing plate on the rod body of the syringe.
2. A syringe filter quick-mount tool according to claim 1, wherein: The one end of the connecting plate (8) is slidably connected with the slide rod one (13) along the middle part to the both sides, the one end of the slide rod one (13) is fixedly connected with the push plate (9), the slide rod one (13) is sleeved with the spring one (14), the one end of the spring one (14) is fixedly connected with the connecting plate (8), the other end of the spring one (14) is fixedly connected with the push plate (9); The one end of the connecting plate (8) is slidably connected with the slide rod two (15) along the middle part to the both sides, the one end of the slide rod two (15) is fixedly connected with the pull plate (11), the slide rod two (15) is sleeved with the spring two (16), the one end of the spring two (16) is fixedly connected with the connecting plate (8), the other end of the spring two (16) is fixedly connected with the pull plate (11).
3. A syringe filter quick-mount tool according to claim 1, wherein: The upper end of the push plate (9) is fixedly connected with the L-shaped plate one (17), the upper end of the pull plate (11) is fixedly connected with the L-shaped plate two (18), the vertical plate of the L-shaped plate one (17) and the vertical plate of the L-shaped plate two (18) are both outwardly arranged.