Split type glue injection cover with glue injection port

Abstract

The split type glue injection cover comprises a base ring, a conical seat is fixedly installed at the top of the base ring, an installation mechanism is fixedly installed on one side of the conical seat, a glue injection cavity is formed in the conical seat, an insertion pipe is inserted in the glue injection cavity, and a glue injection opening is formed in the insertion pipe. When glue injection is needed in the application period of the device, glue is injected into the glue injection head from the glue injection nozzle, the internal pressure is increased to push the sealing plate to rotate around the rotating shaft, the telescopic spring is compressed, the glue injection channel is opened to enable the glue to flow into the inserting pipe, glue supply is stopped after glue injection is completed, the pressure of the glue injection head is reduced, and the glue injection head is closed. The telescopic spring resets to push the sealing plate to reversely rotate to cover the glue injection nozzle for sealing, the rotating shaft is matched with the hinge groove to ensure accurate resetting of the sealing plate, automatic closing and leakage prevention of the glue injection opening are achieved without manual operation, the inserting pipe can be rapidly disassembled and assembled, and overall replacement during overhaul and maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of glue injection cap technology, and in particular to a split glue injection cap with a glue injection port. Background Technology

[0002] Currently in the field of medical device manufacturing, dialyzers are key instruments for treating patients with kidney failure and uremia. The reliability of their manufacturing process is directly related to the safety of patients' lives. The dialyzer glue filling cap, as an important component in the dialyzer packaging process, undertakes the core functions of assisting glue filling and sealing.

[0003] Currently, most dialyzer filler caps on the market lack an automatic sealing structure at the filler port. This means that after filler injection, the filler port cannot be sealed promptly, leading to overflow. This not only contaminates production equipment and the dialyzer exterior, reducing product yield, but also requires additional manpower and time for cleaning and rework. Furthermore, in subsequent sterilization, transportation, and clinical use, the lack of an automatic sealing structure makes the filler port susceptible to leakage due to pressure changes and vibrations, compromising the dialyzer's seal and posing a significant risk of blood and dialysate leakage, seriously threatening patient health. In addition, the open filler port becomes a contaminant entry point for bacteria, dust, and other pollutants, increasing the initial contamination load before sterilization during production and affecting sterilization effectiveness. During storage and use, it also increases the risk of microbial growth and patient infection. Therefore, the existing technology has certain defects and shortcomings, necessitating design improvements. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a split-type glue-injection cap with a glue-injection port, which more accurately solves the problems described above.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a split-type glue injection cap with a glue injection port, including a base ring, a conical seat fixedly installed on the top of the base ring, an installation mechanism fixedly installed on one side of the conical seat, a glue injection cavity body opened inside the conical seat, a plug tube inserted inside the glue injection cavity body, and a self-sealing glue injection connection mechanism fixedly installed on the top of the plug tube body.

[0007] The self-sealing glue injection connection mechanism includes a glue injection head, a glue injection nozzle is fixedly connected to the top of the glue injection head, the bottom of the glue injection nozzle is connected to the inside of the glue injection head, an elastic sealing assembly is fixedly connected to one side of the internal cavity of the glue injection head, and the glue injection head is fixedly connected to the top of the insertion tube.

[0008] Furthermore, the mounting mechanism includes a side rail and a retaining frame. The side rail is fixedly mounted on one side of the conical seat. Limiting springs are fixedly connected to both ends of the side rail. A slider is fixedly connected to the outer end of the limiting spring. The slider is slidably connected to the inside of the side rail. A limiting arm is fixedly connected to the top of the slider. A limiting block is fixedly connected to the top of the limiting arm. The retaining frame is fixedly connected to the upper ends of both sides of the outer surface of the insertion tube. The limiting block is inserted into the inside of the retaining frame.

[0009] Furthermore, an adjusting arm is fixedly connected to the outer side of the slider, and an adjusting push plate is fixedly connected to the outer side of the adjusting arm.

[0010] Furthermore, the outer side of the base ring is provided with mounting holes arranged in a ring at equal intervals, and the mounting holes are countersunk holes.

[0011] Furthermore, the side surface of the slider is convex, and the cross-sectional shape of the internal cavity of the side rail is also convex.

[0012] Furthermore, the elastic sealing assembly includes a hinge groove, which is formed inside one side of the dispensing head. A rotating shaft is rotatably connected inside the hinge groove, and a sealing plate is fixedly connected to the outside of the rotating shaft. The sealing plate covers the output end of the dispensing nozzle, and a telescopic spring is fixedly connected to the bottom of the sealing plate. The outside of the telescopic spring is fixedly connected to one side of the dispensing head.

[0013] Furthermore, a covering sealing ring is fixedly connected to the middle of the outer surface of the insertion tube, and the covering sealing ring covers and seals the gap between the glue injection cavity and the insertion tube.

[0014] The beneficial effects of this utility model are:

[0015] 1. When installing the insertion tube and self-sealing glue injection connection mechanism, the limit spring is initially compressed, which pushes the adjusting push plate to drive the relevant components to move the limit block inward. After the insertion tube is inserted and aligned with the frame, the limit spring resets and the limit block is locked into the frame. When removing, the adjusting push plate is pushed to move the slider outward, the limit spring is compressed, and the limit block is released from the frame, allowing the insertion tube to be pulled out. This process uses the elastic reset of the limit spring and the adjustment of external force to achieve quick insertion and removal of the insertion tube, which facilitates the replacement and maintenance of the self-sealing glue injection connection mechanism.

[0016] 2. When glue needs to be injected during the application of this device, the glue is injected into the glue head from the glue nozzle. The internal pressure increases, pushing the sealing plate to rotate around the shaft and compressing the telescopic spring, opening the glue channel and allowing the glue to flow into the connector. After the glue injection is completed, the glue supply stops, the pressure of the glue head decreases, the telescopic spring returns to its original position, pushing the sealing plate to rotate in the opposite direction to cover the glue nozzle and seal it. The shaft and the hinge groove cooperate to ensure that the sealing plate is accurately reset. The glue port can be automatically closed to prevent leakage without manual operation, and the connector can be quickly disassembled and installed, making it convenient to replace the whole device during inspection and maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled connector of this utility model.

[0019] Figure 3 This is a schematic diagram of the limiting spring, slider, insertion tube, and clamping frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the elastic sealing assembly structure of this utility model.

[0021] In the diagram: 1. Base ring; 2. Conical seat; 3. Mounting mechanism; 31. Side rail; 32. Frame; 33. Limiting spring; 34. Slider; 35. Limiting arm; 36. Limiting block; 37. Adjusting arm; 38. Adjusting push plate; 4. Injection cavity; 5. Insertion pipe; 6. Self-sealing injection connection mechanism; 61. Injection head; 62. Injection nozzle; 63. Elastic sealing assembly; 631. Hinge groove; 632. Rotating shaft; 633. Sealing plate; 634. Telescopic spring; 7. Mounting hole; 8. Cover sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] A split-type glue injection cap with a glue injection port includes a base ring 1, a conical seat 2 fixedly installed on the top of the base ring 1, an installation mechanism 3 fixedly installed on one side of the conical seat 2, a glue injection cavity 4 opened inside the conical seat 2, a plug tube 5 inserted inside the glue injection cavity 4, and a self-sealing glue injection connection mechanism 6 fixedly installed on the top of the plug tube 5.

[0025] The self-sealing glue injection connection mechanism 6 includes a glue injection head 61, with a glue injection nozzle 62 fixedly connected to the top of the glue injection head 61. The bottom of the glue injection nozzle 62 is connected to the interior of the glue injection head 61. An elastic sealing assembly 63 is fixedly connected to one side of the internal cavity of the glue injection head 61. The glue injection head 61 is fixedly connected to the top of the insertion tube 5. During operation, the base ring 1 of this split-type glue injection cap with a glue injection port serves as the basic component to fix the entire device. The self-sealing glue injection connection mechanism 6 at the top of the conical seat 2 plays a key role. During glue injection, glue enters the glue injection head 61 through the glue injection nozzle 62. As the internal pressure of the glue injection head 61 increases, the sealing plate 633 in the elastic sealing assembly 63 rotates around the rotating shaft 632 under pressure and squeezes the telescopic spring 634, thereby opening the glue injection port. The channel allows glue to flow into the glue injection cavity 4 through the insertion tube 5 to achieve glue injection. After glue injection, the internal pressure of the glue injection head 61 decreases, the telescopic spring 634 resets and pushes the sealing plate 633 to rotate in the opposite direction, covering the glue injection nozzle 62 again to form a seal and prevent glue leakage. The installation mechanism 3 realizes quick assembly and disassembly of the insertion tube 5 and the conical seat 2 through the extension and retraction of the limit spring 33. When the adjusting push plate 38 is pushed to move the slider 34 inward, the limit block 36 inserts into the clip frame 32 on the outer surface of the insertion tube 5 to complete the installation. Conversely, pushing the slider 34 outward can remove the insertion tube 5, which facilitates the replacement and maintenance of the self-sealing glue injection connection mechanism 6. The whole system achieves efficient and automated operation of glue injection and sealing through the coordinated cooperation of the pressure-driven elastic sealing group 63 and the mechanical snap-fit ​​structure.

[0026] Combination Figures 1-3 As shown, the mounting mechanism 3 includes a side rail 31 and a frame 32. The side rail 31 is fixedly mounted on one side of the conical seat 2. Limiting springs 33 are fixedly connected to both ends of the side rail 31. A slider 34 is fixedly connected to the outer end of the limiting spring 33. The slider 34 is slidably connected to the inside of the side rail 31. A limiting arm 35 is fixedly connected to the top of the slider 34. A limiting block 36 is fixedly connected to the top of the limiting arm 35. The frame 32 is fixedly connected to the upper ends of both sides of the outer surface of the insertion tube 5. The limiting block 36 is inserted into the inside of the frame 32. An adjusting arm 37 is fixedly connected to the outer side of the slider 34. An adjusting push plate 38 is fixedly connected to the outer side of the adjusting arm 37. Mounting holes 7 are arranged in a ring at equal intervals on the outer side of the base ring 1. The mounting holes 7 are countersunk holes. The side shape of the slider 34 is convex. The cross-sectional shape of the internal cavity of the side rail 31 is also convex.

[0027] In the above-described embodiments of this application, during the application of this device, when the adjusting push plate 38 is pushed to cause the adjusting arm 37 to move the slider 34 inward along the side rail 31, the slider 34 compresses the limiting spring 33. At this time, the insertion tube 5 is inserted into the glue injection cavity 4, so that the frame 32 is aligned with the limiting block 36. Then, the adjusting push plate 38 is released, the limiting spring 33 returns to its original position, pushes the slider 34 outward, and causes the limiting block 36 on the limiting arm 35 to insert into the frame 32, thereby achieving a locking connection between the insertion tube 5 and the conical seat 2. During disassembly... Push the adjusting plate 38 again to move the slider 34 inward, and the limiting block 36 will disengage from the frame 32, allowing the insertion tube 5 to be pulled out. The convex slider 34 cooperates with the cavity of the side rail 31 to ensure that the slider 34 slides stably and will not come out. The countersunk hole 7 on the outer side of the base ring 1 can be used with the sealing screw to fix the entire glue filling cover on the dialyzer. Through the elastic force of the limiting spring 33 and the operation of the adjusting plate 38, this mechanism realizes the quick disassembly and assembly of the insertion tube 5, which facilitates the replacement and maintenance of the self-sealing glue filling connection mechanism 6.

[0028] Example 2

[0029] Combination Figure 4 As shown, the elastic sealing assembly 63 includes a hinge groove 631, which is formed inside one side of the dispensing head 61. A rotating shaft 632 is rotatably connected inside the hinge groove 631. A sealing plate 633 is fixedly connected to the outside of the rotating shaft 632. The sealing plate 633 covers the output end of the dispensing nozzle 62. A telescopic spring 634 is fixedly connected to the bottom of the sealing plate 633. The outside of the telescopic spring 634 is fixedly connected to one side of the dispensing head 61. A covering sealing ring 8 is fixedly connected to the middle of the outer surface of the insertion tube 5. The covering sealing ring 8 covers and seals the gap between the dispensing cavity 4 and the insertion tube 5.

[0030] In the above-described embodiments of this application, during the application of this device, when the glue is injected, the glue is injected from the glue nozzle 62 into the glue head 61. The increased internal pressure pushes the sealing plate 633 to rotate around the pivot 632 toward the inside of the hinge groove 631, compressing the telescopic spring 634 at the bottom, causing the sealing plate 633 to disengage from the output end of the glue nozzle 62, opening the glue injection channel. The glue flows into the glue injection cavity 4 through the insertion tube 5. After the glue injection is completed, the pressure inside the glue head 61 decreases, and the telescopic spring 634 returns to its original position due to elastic deformation, pushing the sealing plate 633 to rotate in the opposite direction around the pivot 632, so that it covers the output end of the glue nozzle 62 again. The rotational cooperation between the pivot 632 and the hinge groove 631 achieves precise reset sealing, preventing glue overflow or leakage. The sealing ring 8 on the outer surface of the insertion tube 5 tightly fits the glue injection cavity 4, further sealing the gap between the two, avoiding glue leakage during the glue injection process, and ensuring the sealing and reliability of the glue injection cap.

[0031] The working principle and advantages of this utility model are as follows: During the application of this device, when it is necessary to install the insertion tube 5 and its top self-sealing glue injection connection mechanism 6, the initial state of the limiting spring 33 is compressed, which pushes the adjusting plate 38 to drive the adjusting arm 37, causing the slider 34 to drive the limiting arm 35 and the limiting block 36 to move inward towards the center of the side rail 31. At this time, the insertion tube 5 is inserted into the glue injection cavity 4, and the retaining frame 32 on the outer surface of the insertion tube 5 is aligned with the limiting block 36. The limiting spring 33 returns to its original position and extends, causing the limiting block 36 to quickly insert into the retaining frame 32. A snap-fit ​​locking mechanism is formed, enabling the quick installation and fixation of the connector 5. If the connector 5 needs to be removed, simply push the adjusting plate 38 manually, which will move the adjusting arm 37 and the slider 34 to the outside of the side rail 31, compressing the limit spring 33 so that it is in an extended state. Simultaneously, the limit block 36 will disengage from the clip frame 32, allowing the connector 5 to be easily pulled out and the disassembly completed. This process, through the elastic reset of the limit spring 33 and the adjustment of the external force, achieves the quick snap-fit ​​and convenient disassembly of the connector 5, facilitating the replacement and maintenance of the self-sealing glue injection connection mechanism 6.

[0032] During use, when applying adhesive, the adhesive is injected into the dispensing head 61 through the dispensing nozzle 62. The internal pressure of the dispensing head 61 increases with the amount of adhesive, pushing the sealing plate 633 to rotate around the pivot 632 towards the inside of the hinge groove 631, compressing the telescopic spring 634. The sealing plate 633 gradually detaches from the output end of the dispensing nozzle 62, opening the dispensing channel. The adhesive flows through the dispensing head 61 into the insertion tube 5 and is finally injected into the dialyzer. After dispensing is complete, the dispensing stops, the internal pressure of the dispensing head 61 decreases, and the adhesive has not completely solidified. The adhesive is subjected to heavy force. The force influences the flow into the inside of the insertion tube 5. At this time, the telescopic spring 634 returns to its original position due to elastic deformation, pushing the sealing plate 633 to rotate in the opposite direction around the rotating shaft 632, so that it covers the output end of the glue injection nozzle 62 again, forming a seal. During this process, the rotational cooperation between the rotating shaft 632 and the hinge groove 631 ensures that the sealing plate 633 is accurately reset. The glue injection port can be automatically closed without manual operation, preventing glue from overflowing or leaking. At the same time, since the insertion tube 5 can be quickly disassembled and installed through the limit spring 33 structure, it can be completely disassembled and replaced when maintenance is required, improving maintenance efficiency.

[0033] During the application of this device, the base ring 1 and the conical seat 2 are made of medical-grade polypropylene (PP) or polycarbonate (PC), which has high strength and chemical corrosion resistance, with a wall thickness of 2-3mm; the side rail 31, the frame 32, the limiting arm 35, and the limiting block 36 are made of stainless steel 304 or aluminum alloy 6061 to ensure structural rigidity; the limiting spring 33 is made of stainless steel wire Φ1.2-1.8mm, with an elastic modulus of 180-200GPa and a pre-compression of 5-8mm; the slider 34 and the adjusting push plate 38 are made of polyoxymethylene (POM), with a surface roughness Ra0.8-1.6μm and a convex cross-sectional dimensional tolerance of ±0.05mm; the dispensing head 61 and the dispensing nozzle 62 are made of polysulfone (PSU), with a temperature resistance of 140-170°C. The inner wall surface roughness is Ra0.4-0.8μm; the sealing plate 633 is made of silicone rubber or fluororubber with a Shore hardness of 60-70A and a thickness of 2-3mm; the telescopic spring 634 is made of stainless steel wire Φ0.8-1.2mm with an elastic modulus of 190-210GPa and a pre-compression of 3-5mm; the insertion tube 5 is made of polyvinyl chloride (PVC) or polyurethane (PU) with an outer diameter of 8-12mm and a wall thickness of 1-1.5mm; the cover sealing ring 8 is made of ethylene propylene diene monomer (EPDM) rubber with a Shore hardness of 70-80A, a cross-sectional diameter of 3-5mm, and a compression ratio of 15-25%; the mounting hole 7 has a diameter of 5-8mm and a countersunk hole depth of 2-3mm; the outer diameter of the base ring 1 is designed to be 40-80mm according to the dialyzer specifications.

[0034] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A split type glue injection cover with a glue injection port, characterized in that, Includes a base ring (1), a conical seat (2) is fixedly installed on the top of the base ring (1), an installation mechanism (3) is fixedly installed on one side of the conical seat (2), an injection cavity (4) is opened inside the conical seat (2), an insertion tube (5) is inserted inside the injection cavity (4), and a self-sealing injection connection mechanism (6) is fixedly installed on the top of the insertion tube (5). The self-sealing glue injection connection mechanism (6) includes a glue injection head (61), a glue injection nozzle (62) is fixedly connected to the top of the glue injection head (61), the bottom of the glue injection nozzle (62) is connected to the inside of the glue injection head (61), an elastic sealing group (63) is fixedly connected to one side of the internal cavity of the glue injection head (61), and the glue injection head (61) is fixedly connected to the top of the insertion tube (5).

2. A split-type glue-injection cap with a glue-injection port according to claim 1, characterized in that, The installation mechanism (3) includes a side rail (31) and a frame (32). The side rail (31) is fixedly installed on one side of the conical seat (2). Limiting springs (33) are fixedly connected to both ends of the side rail (31). A slider (34) is fixedly connected to the outer end of the limiting spring (33). The slider (34) is slidably connected to the inside of the side rail (31). A limiting arm (35) is fixedly connected to the top of the slider (34). A limiting block (36) is fixedly connected to the top of the limiting arm (35). The frame (32) is fixedly connected to the upper ends of both sides of the outer surface of the insertion tube (5). The limiting block (36) is inserted into the inside of the frame (32).

3. The split injection port cover according to claim 2, wherein, An adjusting arm (37) is fixedly connected to the outside of the slider (34), and an adjusting push plate (38) is fixedly connected to the outside of the adjusting arm (37).

4. The split injection port cover of claim 1, wherein, The base ring (1) has mounting holes (7) arranged in a ring at equal intervals on its outer side, and the mounting holes (7) are countersunk holes.

5. The split glue-in cover with glue-in port according to claim 3, characterized in that, The side of the slider (34) is convex, and the internal cavity cross-section of the side rail (31) is also convex.

6. The split injection port cover of claim 1, wherein, The elastic sealing assembly (63) includes a hinge groove (631), which is located inside the glue injection head (61) on one side. A rotating shaft (632) is rotatably connected inside the hinge groove (631). A sealing plate (633) is fixedly connected to the outside of the rotating shaft (632). The sealing plate (633) covers the output end of the glue injection nozzle (62). A telescopic spring (634) is fixedly connected to the bottom of the sealing plate (633). The outside of the telescopic spring (634) is fixedly connected to one side inside the glue injection head (61).

7. The split injection port cover of claim 1, wherein, A cover sealing ring (8) is fixedly connected to the middle of the outer surface of the insertion tube (5), and the cover sealing ring (8) covers and seals the gap between the glue injection cavity (4) and the insertion tube (5).

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