A mechanism for directing uniform distribution of a liquid onto an absorbable material

The clamping assembly consisting of a fixed plate, a movable plate, and an arc-shaped rubber pad solves the problem of unstable fixing of the scribing head, achieving stable clamping and improving work efficiency.

CN224553284UActive Publication Date: 2026-07-24SHANGHAI JIENING BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JIENING BIOTECH CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to precisely control the engagement force of the locking screw in the fixing device of the marking head, which can easily lead to the marking head being blocked or not being fixed securely, thus affecting work efficiency.

Method used

The clamping assembly, consisting of a fixed plate, a movable plate, and an arc-shaped rubber pad, secures the marking head by compression through the arc-shaped groove and the rubber pad, and achieves stable clamping through the cooperation of the connecting assembly and the spring.

Benefits of technology

This effectively avoids problems such as the marking head getting clogged or the screw not being securely fixed due to improper control of the locking screw force, thus improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a mechanism for guiding liquid to be uniformly distributed on absorbable material, relates to the medical field, and comprises a fixing seat, a through hole for mounting an infusion tube is formed in the upper surface of the fixing seat, and a clamping assembly for mounting a marking head is arranged on the fixing seat; the clamping assembly comprises a connecting plate fixedly connected to the lower surface of the fixing seat; the fixing plate, the moving plate and the arc-shaped rubber pad are cooperatively arranged; in use, the marking head is placed in the first arc-shaped groove, then the moving plate is attached to the fixing plate, the marking head is partially located in the second arc-shaped groove, the marking head is clamped in the first arc-shaped groove and the second arc-shaped groove through extrusion of the arc-shaped rubber pad, and the moving plate is attached to the fixing plate through the connecting assembly, so that the moving plate is prevented from moving, the abutting force of the locking screw is difficult to control, the marking head is easily blocked or the abutting force is small, the marking head cannot be fixed, multiple adjustments are required, and the working efficiency is reduced.
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Description

Technical Field

[0001] This application relates to the field of medicine, and in particular to a mechanism for guiding liquid to be uniformly distributed onto an absorbable material. Background Technology

[0002] In the production of rapid diagnostic test strips, it is generally necessary to fix the corresponding antibodies or antigens on a nitrocellulose membrane to form two lines: a detection line and a control line. The previously used semi-contact scribing method had a very long scribing tip, lacked a sufficiently precise and stable fixing device, and the connection between liquid lines was also relatively complex.

[0003] The utility model patent with announcement number CN203981677U proposes a device for guiding liquid to be evenly distributed onto an absorbable material, including an upper fixed base and a lower fixed head. The fixed base has a vertical through hole, and the fixed head has a forward-facing arc-shaped groove. When the fixed head is fixed below the fixed base, the vertical through hole and the arc-shaped groove in the fixed head form a continuous channel for installing the scribing head.

[0004] One of the aforementioned devices for guiding liquid to be evenly distributed onto absorbable material involves placing the marking head into an arc-shaped groove and then fixing it in place by rotating a locking screw. A certain amount of space is left to prevent obstruction of liquid flow through the marking head. However, when rotating the locking screw, it is difficult to control the clamping force, which can easily block the marking head or result in insufficient clamping force, making it impossible to fix. This necessitates multiple adjustments, leading to reduced work efficiency. Utility Model Content

[0005] To address the aforementioned problems, this application provides a mechanism for guiding liquid to be uniformly distributed onto an absorbable material.

[0006] The mechanism for guiding liquid to be uniformly distributed onto an absorbable material provided in this application adopts the following technical solution:

[0007] A mechanism for guiding liquid to be evenly distributed onto an absorbable material includes a fixed base. The upper surface of the fixed base has a through hole for installing an infusion tube. The fixed base is provided with a clamping assembly for installing a marking tip. The clamping assembly includes a connecting plate fixedly connected to the lower surface of the fixed base. A fixed plate is fixedly connected to one side of the bottom end of the connecting plate. A movable plate is provided on one side of the fixed plate. A first arc-shaped groove is formed on the side wall of the fixed plate near the movable plate. A second arc-shaped groove adapted to the first arc-shaped groove is formed on the side wall of the movable plate near the fixed plate. An arc-shaped rubber pad is fixedly connected to the inner wall of the second arc-shaped groove. A connecting assembly for adhering to the fixed plate is provided on the movable plate.

[0008] By adopting the above technical solution, during use, the infusion tube is installed on the through hole, and then the marking head is placed in the first arc-shaped groove, allowing the marking head to be inserted into the infusion tube. The bottom part of the marking head extends out of the first arc-shaped groove. Then, the moving plate is attached to the fixed plate, so that the marking head is located in the second arc-shaped groove. The marking head is squeezed by the arc-shaped rubber pad, clamping the marking head in the first and second arc-shaped grooves. Finally, the moving plate is attached to the fixed plate by the connecting assembly to prevent the moving plate from moving and to fix the marking head in place. This avoids the problem of difficult-to-control locking screw abutment force, which can easily block the marking head or result in insufficient abutment force, making it impossible to fix and requiring multiple adjustments, thus reducing work efficiency.

[0009] Preferably, the connecting assembly includes positioning rods fixedly connected to four ends of one side wall of the movable plate. The ends of the positioning rods away from the movable plate all penetrate the fixed plate and are slidably arranged. A sliding groove is formed on the side wall of the movable plate away from the fixed plate. A slider is slidably arranged in the sliding groove. Multiple insertion rods are fixedly connected to the upper surface of the slider. Multiple insertion holes adapted to the insertion rods are formed on the lower surface of the connecting plate. The ends of the insertion rods away from the slider penetrate the sliding groove and are inserted into the insertion holes. Multiple springs are fixedly connected to the lower surface of the slider. The bottom ends of the springs are fixedly connected to the bottom wall of the sliding groove.

[0010] By adopting the above technical solution, pressing the slider causes it to slide down in the groove, compressing the spring and moving the insertion rod into the groove. Then, the positioning rod moves the moving plate close to the fixed plate, aligning the second arc groove with the first arc groove. Releasing the slider causes the spring to rebound, pushing the insertion rod into the insertion hole and fixing the moving plate. The scribing head is then fixed in the first and second arc grooves.

[0011] Preferably, each spring is provided with a telescopic rod, one end of which is fixedly connected to the bottom wall of the slide groove, and the other end of which is fixedly connected to the slider.

[0012] By adopting the above technical solution, the stability of the spring can be improved by using a telescopic rod, preventing the spring from bending when it contracts and thus breaking.

[0013] Preferably, a baffle for blocking the slide groove is fixedly connected to the lower surface of the slider.

[0014] By adopting the above technical solution, the baffle can block the slide groove, preventing dust and debris from entering the slide groove and getting stuck in the spring, thus affecting the use of the spring.

[0015] Preferably, the upper surface of the fixing seat is provided with a fixing bolt, the screw end of the fixing bolt is fitted with a washer, and the screw end of the fixing bolt passes through the fixing seat and forms a sliding arrangement.

[0016] By adopting the above technical solution, the fixing bolt is passed through the fixing seat and threadedly connected to the external instrument, making it convenient to install the fixing seat onto the instrument.

[0017] Preferably, the end of the positioning rod away from the moving plate is fixedly connected to a limiting plate.

[0018] By adopting the above technical solution, the limiting plate can prevent the positioning rod from being pulled out of the fixed plate, which would cause the moving plate to fall.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. This application utilizes a combination of a fixed plate, a movable plate, and an arc-shaped rubber pad. In use, the infusion tube is installed on the through hole, and the marking head is placed in the first arc-shaped groove, allowing it to insert into the infusion tube. The bottom end of the marking head extends out of the first arc-shaped groove. The movable plate is then attached to the fixed plate, positioning the marking head in the second arc-shaped groove. The arc-shaped rubber pad presses against the marking head, clamping it between the first and second arc-shaped grooves. Finally, a connecting assembly attaches the movable plate to the fixed plate, preventing movement and securing the marking head. This design minimizes the problems associated with controlling the locking screw's contact force, which can easily clog the marking head or result in insufficient contact force, requiring multiple adjustments and reducing work efficiency.

[0021] 2. When the slider moves to the top of the slide, the baffle can block the slide to prevent dust and debris from entering the slide, getting stuck in the spring, and affecting the use of the spring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a mechanism for guiding liquid to be evenly distributed onto an absorbable material, according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram illustrating the first arc-shaped groove structure, which is the main feature of this application embodiment;

[0024] Figure 3 This is a schematic diagram illustrating the second arc-shaped groove structure, which is the main feature of this application embodiment;

[0025] Figure 4 This is a schematic diagram illustrating the internal structure of the chute, which is the main feature of this application.

[0026] Reference numerals in the attached drawings: 1. Fixed base; 2. Through hole; 3. Connecting plate; 4. Fixed plate; 5. Moving plate; 6. First arc-shaped groove; 7. Second arc-shaped groove; 8. Arc-shaped rubber pad; 9. Positioning rod; 10. Slide groove; 11. Slider; 12. Insert rod; 13. Insertion hole; 14. Spring; 15. Telescopic rod; 16. Baffle; 17. Fixing bolt; 18. Washer; 19. Limiting plate. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0028] This application discloses a mechanism for guiding liquid to be uniformly distributed onto an absorbable material.

[0029] Reference Figure 1 , Figure 2 and Figure 3 A mechanism for guiding liquid to be evenly distributed onto an absorbable material includes a fixed base 1, a through hole 2 for installing an infusion tube on the upper surface of the fixed base 1, and a clamping assembly for installing a scribing head on the fixed base 1. The clamping assembly includes a connecting plate 3, a fixed plate 4, a movable plate 5, a first arc groove 6, a second arc groove 7, and an arc rubber pad 8.

[0030] The connecting plate 3 is fixedly connected to the lower surface of the fixed base 1, the fixed plate 4 is fixedly connected to one side of the bottom of the connecting plate 3, the movable plate 5 is disposed on one side of the fixed plate 4, the first arc-shaped groove 6 is opened on the side wall of the fixed plate 4 near the movable plate 5, the second arc-shaped groove 7 is opened on the side wall of the movable plate 5 near the fixed plate 4 and is adapted to the first arc-shaped groove 6. When the fixed plate 4 and the movable plate 5 are attached, the first arc-shaped groove 6 and the second arc-shaped groove 7 are attached to form a circular groove. The circular groove is connected to the through hole 2. The arc-shaped rubber pad 8 is fixedly connected to the inner wall of the second arc-shaped groove 7. The movable plate 5 is provided with a connecting component for attaching to the fixed plate 4.

[0031] Reference Figure 1 , Figure 3 and Figure 4The connecting assembly includes positioning rods 9 fixedly connected to the four ends of one side wall of the movable plate 5. The ends of the positioning rods 9 away from the movable plate 5 all pass through the fixed plate 4 and are slidably arranged. A sliding groove 10 is provided on the side wall of the movable plate 5 away from the fixed plate 4. A slider 11 is slidably arranged in the sliding groove 10. Multiple insertion rods 12 are fixedly connected to the upper surface of the slider 11. Multiple insertion holes 13 adapted to the insertion rods 12 are provided on the lower surface of the connecting plate 3. The ends of the insertion rods 12 away from the slider 11 pass through the sliding groove 10 and are inserted into the insertion holes 13. The lower surface of the slider 11... Multiple springs 14 are fixedly connected, with the bottom end of each spring 14 fixedly connected to the bottom wall of the slide groove 10. By pressing the slider 11, the slider 11 slides down in the slide groove 10, compressing the springs 14 and moving the insertion rod 12 into the slide groove 10. Then, the positioning rod 9 moves the moving plate 5 close to the fixed plate 4, aligning the second arc groove 7 with the first arc groove 6. By releasing the slider 11, the springs 14 rebound, pushing the insertion rod 12 into the insertion hole 13, fixing the moving plate 5, and fixing the scribing head in the first arc groove 6 and the second arc groove 7.

[0032] Reference Figure 4 Each spring 14 is equipped with a telescopic rod 15. One end of the telescopic rod 15 is fixedly connected to the bottom wall of the slide groove 10, and the other end of the telescopic rod 15 is fixedly connected to the slider 11. The telescopic rod 15 can improve the stability of the spring 14 and prevent the spring 14 from bending when it contracts, which would cause the spring 14 to break.

[0033] Reference Figure 1 and Figure 4 A baffle 16 is fixedly connected to the lower surface of the slider 11 to block the slide groove 10. The baffle 16 can block the slide groove 10 to prevent dust and debris from entering the slide groove 10 and getting stuck in the spring 14, thus affecting the use of the spring 14.

[0034] Reference Figure 1 The upper surface of the fixed base 1 is provided with a fixing bolt 17. The screw end of the fixing bolt 17 is fitted with a washer 18. The screw end of the fixing bolt 17 passes through the fixed base 1 and forms a sliding setting. By passing the fixing bolt 17 through the fixed base 1, it is threadedly connected to the external instrument, making it convenient to install the fixed base 1 onto the instrument.

[0035] Reference Figure 3 The end of the positioning rod 9 away from the moving plate 5 is fixedly connected to the limiting plate 19. The limiting plate 19 can prevent the positioning rod 9 from being pulled out of the fixed plate 4, causing the moving plate 5 to fall.

[0036] The implementation principle of a mechanism for guiding liquid to be evenly distributed onto absorbable material according to an embodiment of this application is as follows: In use, the infusion tube is installed on the through hole 2, and then the scribing head is placed in the first arc-shaped groove 6, so that the scribing head is inserted into the infusion tube and the bottom part of the scribing head extends out of the first arc-shaped groove 6. Then, by pressing the slider 11, the slider 11 slides down in the slide groove 10, compressing the spring 14 and moving the insertion rod 12 into the slide groove 10. Then, the positioning rod 9 moves the moving plate 5 closer to the fixed plate 4, and the second... The arc-shaped groove 7 fits into the first arc-shaped groove 6, placing the scribing head in the second arc-shaped groove 7. The arc-shaped rubber pad 8 squeezes the scribing head, clamping it in the first arc-shaped groove 6 and the second arc-shaped groove 7. Then, by releasing the slider 11, the spring 14 rebounds and pushes the insertion rod 12 into the insertion hole 13, fixing the moving plate 5. This avoids the problem of the locking screw's abutment force being difficult to control, which could easily block the scribing head or have insufficient abutment force, making it impossible to fix and requiring multiple adjustments, thus reducing work efficiency.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mechanism for guiding liquid to be evenly distributed onto an absorbable material, comprising a fixing base (1), wherein the upper surface of the fixing base (1) is provided with a through hole (2) for installing an infusion tube, and the fixing base (1) is provided with a clamping assembly for installing a scribing head, characterized in that: The clamping assembly includes a connecting plate (3) fixedly connected to the lower surface of the fixed base (1). A fixed plate (4) is fixedly connected to one side of the bottom end of the connecting plate (3). A movable plate (5) is provided on one side of the fixed plate (4). A first arc-shaped groove (6) is provided on the side wall of the fixed plate (4) near the movable plate (5). A second arc-shaped groove (7) adapted to the first arc-shaped groove (6) is provided on the side wall of the movable plate (5) near the fixed plate (4). Both the first arc-shaped groove (6) and the second arc-shaped groove (7) are connected to the through hole (2). An arc-shaped rubber pad (8) is fixedly connected to the inner wall of the second arc-shaped groove (7). A connecting assembly for fitting onto the fixed plate (4) is provided on the movable plate (5).

2. The mechanism for guiding liquid to be uniformly distributed onto an absorbable material according to claim 1, characterized in that: The connecting assembly includes positioning rods (9) fixedly connected to the four ends of one side wall of the movable plate (5). The end of the positioning rod (9) away from the movable plate (5) passes through the fixed plate (4) and forms a sliding arrangement. A sliding groove (10) is provided on the side wall of the movable plate (5) away from the fixed plate (4), and a slider (11) is slidably arranged in the sliding groove (10).

3. The mechanism for guiding liquid to be uniformly distributed onto an absorbable material according to claim 2, characterized in that: Multiple insert rods (12) are fixedly connected to the upper surface of the slider (11). Multiple insertion holes (13) adapted to the insert rods (12) are opened on the lower surface of the connecting plate (3). The end of the insert rod (12) away from the slider (11) passes through the slide groove (10) and is inserted into the insertion hole (13). Multiple springs (14) are fixedly connected to the lower surface of the slider (11). The bottom end of the spring (14) is fixedly connected to the bottom wall of the slide groove (10).

4. The mechanism for guiding liquid to be uniformly distributed onto an absorbable material according to claim 3, characterized in that: Each spring (14) is provided with a telescopic rod (15). One end of the telescopic rod (15) is fixedly connected to the bottom wall of the slide groove (10), and the other end of the telescopic rod (15) is fixedly connected to the slider (11).

5. The mechanism for guiding liquid to be uniformly distributed onto an absorbable material according to claim 4, characterized in that: A baffle (16) for blocking the slide groove (10) is fixedly connected to the lower surface of the slider (11).

6. The mechanism for guiding liquid to be uniformly distributed onto an absorbable material according to claim 5, characterized in that: The upper surface of the fixed seat (1) is provided with a fixing bolt (17), and a washer (18) is sleeved on the screw end of the fixing bolt (17). The screw end of the fixing bolt (17) passes through the fixed seat (1) and forms a sliding arrangement.

7. The mechanism for guiding liquid to be uniformly distributed onto an absorbable material according to claim 6, characterized in that: The end of each positioning rod (9) away from the moving plate (5) is fixedly connected to a limiting plate (19).