Freeze-drying film-covering double-fork rubber plug
By reducing the leg height of the lyophilized coated double fork plug and increasing the R-angle arc surface, combined with the design of the material extraction unit, the problem of easy breakage and easy contamination during the production process is solved, achieving higher stability and more accurate removal effect.
Patent Information
- Application Number
- CN202411989658.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-18
AI Technical Summary
The existing freeze-dried coated double-fork glue plugs are prone to rupture during the production process, resulting in the inability to mass production. When removing the freeze-dried medicines, it is easy to cause multiple freeze-dried and pour out at the same time, resulting in contamination.
A freeze-dried coated double-fork glue plug is designed. By reducing the height of the legs of the glue plug and increasing the R-angle arc surface, the extrusion and tensile force of the membrane material are reduced, and a material extraction unit is installed at the end of the glue plug main body, and a single freeze-dried removal is achieved using a spring piece and a sealing plate to avoid contamination.
It reduces the overall weight and deformation of the rubber plug, improves structural stability and durability, reduces the cracking of the membrane material, and realizes accurate removal of single freeze-dried, avoiding contamination.
Smart Images

Figure CN119637257A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rubber materials, in particular to a freeze-dried film-coated double-pronged rubber plug. Background Art
[0002] Freeze-dried coated rubber stoppers are upgraded products of freeze-dried rubber stoppers. By coating the surface of butyl rubber stoppers with a layer of ethylene-tetrafluoroethylene copolymer film (ETFE), it can effectively block the direct contact between the drug and the rubber stopper, prevent the release of active substances in the rubber stopper, and have better compatibility with the drug.
[0003] The double-fork structure has a faster rate in the freeze-drying sublimation process of freeze-dried drugs. However, the double-fork structure is relatively less stable than the single-fork structure during the machine operation, and the double-fork structure is more prone to membrane breakage during the production process, making it impossible to carry out large-scale production. At the same time, after the existing double-fork rubber stopper is inserted into the bottle mouth of the drug, if the freeze-dried drug needs to be taken out, the double-fork rubber stopper needs to be pulled out, and then the freeze-dried drug needs to be poured out, which can easily cause multiple freeze-dried drugs to be poured out at the same time, thereby causing contamination. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides a freeze-dried coated double-pronged rubber stopper, which solves the problem that the double-pronged structure is more prone to membrane breakage during the production process, making it impossible to carry out mass production. At the same time, after the existing double-pronged rubber stopper is inserted into the bottle mouth of the medicine, if the freeze-dried medicine needs to be taken out, the double-pronged rubber stopper needs to be pulled out, and then the freeze-dried medicine needs to be poured out, which can easily cause multiple freeze-dried medicines to be poured out at the same time, thereby causing pollution.
[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a freeze-dried film-coated double-pronged rubber plug, comprising:
[0006] The rubber plug unit comprises:
[0007] A rubber stopper body, which can be installed on the mouth of a glass bottle containing freeze-dried food;
[0008] The plug leg is arranged at the end of the plug body and is integrally formed with the plug body, and the bottom of the plug leg is provided with an R-angle arc surface;
[0009] The material taking unit is installed at the end of the rubber plug body, and the material taking unit comprises:
[0010] Install the sleeve;
[0011] A discharge sleeve, which is arranged at the end of the mounting sleeve;
[0012] A material taking rack, which is arranged between the material discharging sleeve and the installation sleeve and can be used for taking out a single freeze-dried product;
[0013] The spring member is arranged between the material taking rack and the material discharging sleeve and is used for fixing the position of the material taking rack.
[0014] Preferably, positioning blocks are provided on the outer walls of the plug body and the plug legs.
[0015] Preferably, a feed port is provided at the bottom of the plug body, and a mounting hole communicating with the feed port is provided at the top of the plug body.
[0016] Preferably, the bottom of the mounting sleeve is threadedly connected to the inner wall of the mounting hole, and the top of the mounting sleeve is threadedly connected to the inner wall of the discharge sleeve.
[0017] Preferably, a discharge cavity is provided inside the discharge sleeve, and a discharge port communicating with the discharge cavity is provided on the outside of the discharge sleeve, and a sealing groove is provided at the bottom of the discharge sleeve.
[0018] Preferably, the material taking rack comprises:
[0019] A sealing plate, which is tightly fitted with the inner wall of the sealing groove;
[0020] The material taking barrel is fixedly installed at the bottom of the sealing plate, and a plurality of material taking openings are opened on the outer side of the material taking barrel.
[0021] Preferably, a material taking cavity is provided inside the material taking barrel, and the material taking cavity is communicated with a plurality of material taking ports.
[0022] Preferably, the spring member comprises:
[0023] The spring outer sleeve has an end portion fixedly connected to the sealing plate;
[0024] The spring inner sleeve has one end movably plugged into the inner wall of the spring outer sleeve, and the other end of the spring inner sleeve is fixedly connected to the inner top wall of the discharge cavity;
[0025] The two ends of the positioning spring are respectively fixedly connected to the inner walls of the spring outer sleeve and the spring inner sleeve.
[0026] Preferably, a pull rod is movably inserted inside the positioning spring, one end of the pull rod is fixedly connected to the inner wall of the spring outer sleeve, and the other end of the pull rod passes through the top of the spring inner sleeve and the top of the discharge sleeve and extends outward.
[0027] Preferably, a pull block is fixedly connected to the top end of the pull rod.
[0028] The present invention discloses a freeze-dried film-coated double-pronged rubber plug, which has the following beneficial effects:
[0029] 1. Compared with the existing double-pronged rubber plugs, the freeze-dried double-pronged rubber plug has a lower height of the rubber plug legs and an R-angle arc surface at the bottom of the rubber plug legs to achieve a rounded effect, reduce the force of extrusion and stretching of the film material, and make it more convenient to coat the outer side of the rubber plug body and the rubber plug legs, reducing the possibility of film material rupture. The new rubber plug design reduces the height of the rubber plug legs. This change not only reduces the overall weight of the rubber plug, but also makes the rubber plug unit more flexible and convenient during installation and use. Lowering the height also helps to reduce the deformation of the rubber plug unit when it is stressed, thereby improving its structural stability and durability. Due to the reduction in the height of the rubber plug legs and the increase in the R-angle arc surface, the new rubber plug design makes it easier to coat the outer side of the rubber plug body and the rubber plug legs. The rounded corners and reduced force allow the film material to fit more closely to the surface of the rubber plug, improving the quality and aesthetics of the coating.
[0030] 2. The freeze-dried coated double-pronged rubber stopper is provided with a material taking unit at the end of the rubber stopper body, and the mounting sleeve is connected to the rubber stopper body. When taking materials from a glass bottle containing freeze-dried products, the glass bottle and the rubber stopper unit are turned upside down to allow the freeze-dried products to enter the material taking rack, and then the material taking rack is pulled toward the discharge sleeve to compress the spring part until the material taking rack enters the discharge sleeve, and then the freeze-dried products in the material taking rack are poured out. After the material taking rack is released, the material taking rack is reset under the action of the spring part, thereby facilitating the taking of a single freeze-dried product and avoiding contamination of other freeze-dried products.
[0031] 3. The freeze-dried coated double-pronged rubber plug uses a sealing plate. Under normal conditions, the sealing plate is tightly fitted with the inner wall of the sealing groove under the action of a spring member, thereby sealing the installation sleeve and the discharge sleeve. After the sealing plate is pulled to separate the sealing plate from the inner wall of the sealing groove, the bottom of the material taking frame can still seal the lower half of the sealing groove, thereby still sealing the installation sleeve and the discharge sleeve.
[0032] 4. The freeze-dried food coated double-pronged rubber plug, under the action of multiple feeding ports, allows the freeze-dried food entering the installation sleeve to enter the feeding cavity, and the internal space of the feeding cavity is limited, so that only a single freeze-dried food can be present, and then the single freeze-dried food can be taken out. After the freeze-dried food is brought into the discharging cavity by using the feeding rack, the discharging port can be used to take out the freeze-dried food in the feeding rack. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0035] Figure 2 It is a cross-sectional view of the overall structure of the present invention;
[0036] Figure 3 It is a structural schematic diagram of the rubber plug unit of the present invention;
[0037] Figure 4 It is a structural schematic diagram of the material taking unit of the present invention;
[0038] Figure 5 It is a structural cross-sectional view of the material taking unit of the present invention;
[0039] Figure 6 It is a structural schematic diagram of the discharge sleeve of the present invention;
[0040] Figure 7 It is a schematic structural diagram of the material taking frame, spring member and pull rod of the present invention.
[0041] In the figure: 1. rubber plug unit; 11. rubber plug body; 12. rubber plug leg; 13. R-angle arc surface; 14. positioning block; 15. feed port; 16. mounting hole; 2. material taking unit; 21. mounting sleeve; 22. material discharging sleeve; 221. material discharging cavity; 222. material discharging port; 223. sealing groove; 23. material taking frame; 231. sealing plate; 232. material taking barrel; 233. material taking cavity; 234. material taking port; 24. spring part; 241. spring outer sleeve; 242. spring inner sleeve; 243. positioning spring; 25. pull rod; 251. pull block. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0043] The embodiment of the present application provides a freeze-dried film-coated double-pronged rubber stopper, which solves the problem that the double-pronged structure is more prone to film breakage during the production process, making it impossible to carry out large-scale production. At the same time, after the existing double-pronged rubber stopper is inserted into the bottle mouth of the medicine, if the freeze-dried medicine needs to be taken out, the double-pronged rubber stopper needs to be pulled out, and then the freeze-dried medicine needs to be poured out, which can easily cause multiple freeze-dried medicines to be poured out at the same time, thereby causing pollution.
[0044] Compared with the existing double-pronged rubber plug, the height of the rubber plug leg 12 is lowered, and an R-angle arc surface 13 is added at the bottom of the rubber plug leg 12 to achieve a rounded effect, reduce the force of extrusion and stretching of the film material, and make it more convenient to coat the outer side of the rubber plug body 11 and the rubber plug leg 12, thereby reducing the possibility of film rupture.
[0045] The new plug design reduces the height of the plug leg 12. This change not only reduces the overall weight of the plug, but also makes the plug unit 1 more flexible and convenient during installation and use. Lowering the height also helps to reduce the deformation of the plug unit 1 when subjected to force, thereby improving its structural stability and durability.
[0046] A material taking unit 2 is provided at the end of the plug body 11, and the mounting sleeve 21 is connected to the plug body 11. When taking materials from a glass bottle containing freeze-dried food, the glass bottle and the plug unit 1 are turned upside down to allow the freeze-dried food to enter the material taking rack 23, and then the material taking rack 23 is pulled to move toward the discharge sleeve 22, compressing the spring member 24 until the material taking rack 23 enters the discharge sleeve 22, and then the freeze-dried food in the material taking rack 23 is poured out. After loosening the material taking rack 23, the material taking rack 23 is reset under the action of the spring member 24, thereby facilitating the taking of a single freeze-dried food and avoiding contamination of other freeze-dried food.
[0047] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0048] Embodiment 1
[0049] The embodiment of the invention discloses a freeze-dried film-coated double-pronged rubber plug.
[0050] According to the attached Figure 1-7 As shown, including:
[0051] The rubber plug unit 1 comprises:
[0052] The plug body 11 can be installed on the mouth of a glass bottle containing freeze-dried food;
[0053] The plug leg 12 is disposed at the end of the plug body 11 and is integrally formed with the plug body 11, and an R-shaped arc surface 13 is formed at the bottom of the plug leg 12;
[0054] The material taking unit 2 is installed at the end of the rubber plug body 11, and the material taking unit 2 includes:
[0055] Install sleeve 21;
[0056] A discharge sleeve 22, which is arranged at the end of the mounting sleeve 21;
[0057] A material taking rack 23, which is arranged between the material discharging sleeve 22 and the installation sleeve 21, and can be used for taking out a single freeze-dried product;
[0058] The spring member 24 is disposed between the material taking frame 23 and the material discharging sleeve 22 and is used to fix the position of the material taking frame 23 .
[0059] Furthermore, positioning blocks 14 are provided on the outer walls of the plug body 11 and the plug legs 12 .
[0060] Compared with the existing double-pronged rubber plug, the height of the rubber plug leg 12 is lowered, and an R-angle arc surface 13 is added at the bottom of the rubber plug leg 12 to achieve a rounded effect, reduce the force of extrusion and stretching of the film material, and make it more convenient to coat the outside of the rubber plug body 11 and the rubber plug leg 12, thereby reducing the possibility of film rupture. The outer edges and corners of the positioning block 14 are rounded to achieve a rounded effect.
[0061] The new plug design reduces the height of the plug leg 12. This change not only reduces the overall weight of the plug, but also makes the plug unit 1 more flexible and convenient during installation and use. Lowering the height also helps to reduce the deformation of the plug unit 1 when subjected to force, thereby improving its structural stability and durability;
[0062] Due to the reduced height of the plug leg 12 and the increased R-angle arc surface 13, the new plug design makes it easier to coat the outer side of the plug body 11 and the plug leg 12. The rounded corners and reduced stress allow the film material to fit more closely to the plug surface, improving the quality and aesthetics of the coating.
[0063] Embodiment 2
[0064] The embodiment of the invention discloses a freeze-dried film-coated double-pronged rubber plug.
[0065] According to the attached Figure 1-7 As shown, including:
[0066] The rubber plug unit 1 comprises:
[0067] The plug body 11 can be installed on the mouth of a glass bottle containing freeze-dried food;
[0068] The plug leg 12 is disposed at the end of the plug body 11 and is integrally formed with the plug body 11, and an R-shaped arc surface 13 is formed at the bottom of the plug leg 12;
[0069] The material taking unit 2 is installed at the end of the rubber plug body 11, and the material taking unit 2 includes:
[0070] Install sleeve 21;
[0071] A discharge sleeve 22, which is arranged at the end of the mounting sleeve 21;
[0072] A material taking rack 23, which is arranged between the material discharging sleeve 22 and the installation sleeve 21, and can be used for taking out a single freeze-dried product;
[0073] The spring member 24 is disposed between the material taking frame 23 and the material discharging sleeve 22 and is used to fix the position of the material taking frame 23 .
[0074] A material taking unit 2 is provided at the end of the plug body 11, and the mounting sleeve 21 is connected to the plug body 11. When taking materials from a glass bottle containing freeze-dried food, the glass bottle and the plug unit 1 are turned upside down to allow the freeze-dried food to enter the material taking rack 23, and then the material taking rack 23 is pulled to move toward the discharge sleeve 22, compressing the spring member 24 until the material taking rack 23 enters the discharge sleeve 22, and then the freeze-dried food in the material taking rack 23 is poured out. After loosening the material taking rack 23, the material taking rack 23 is reset under the action of the spring member 24, thereby facilitating the taking of a single freeze-dried food and avoiding contamination of other freeze-dried food.
[0075] Furthermore, a feed port 15 is provided at the bottom of the plug body 11 , and a mounting hole 16 communicating with the feed port 15 is provided at the top of the plug body 11 .
[0076] The feed inlet 15 is provided to facilitate the freeze-dried food to enter the material taking unit 2 through the feed inlet 15 .
[0077] Furthermore, the bottom of the mounting sleeve 21 is threadedly connected to the inner wall of the mounting hole 16 , and the top of the mounting sleeve 21 is threadedly connected to the inner wall of the discharge sleeve 22 .
[0078] The installation hole 16 is provided to facilitate installation of the installation sleeve 21 . Meanwhile, the top of the installation sleeve 21 is threadedly connected to the inner wall of the discharge sleeve 22 , and the installation sleeve 21 and the discharge sleeve 22 can be installed and disassembled.
[0079] Furthermore, a discharge cavity 221 is provided inside the discharge sleeve 22 , and a discharge port 222 communicating with the discharge cavity 221 is provided outside the discharge sleeve 22 , and a sealing groove 223 is provided at the bottom of the discharge sleeve 22 .
[0080] After the freeze-dried food is brought into the discharging cavity 221 by using the discharging rack 23 , the freeze-dried food in the discharging rack 23 can be taken out by using the discharging port 222 .
[0081] Particularly disclosed, the material taking frame 23 comprises:
[0082] The sealing plate 231 is tightly fitted with the inner wall of the sealing groove 223; the sealing plate 231 is set, and under normal conditions, the sealing plate 231 is tightly fitted with the inner wall of the sealing groove 223 under the action of the spring member 24, so that the installation sleeve 21 and the discharge sleeve 22 can be sealed, and after the sealing plate 231 is pulled to separate the sealing plate 231 from the inner wall of the sealing groove 223, the bottom of the material taking frame 23 can still seal the lower half of the sealing groove 223, so that the installation sleeve 21 and the discharge sleeve 22 can still be sealed;
[0083] The material taking barrel 232 is fixedly mounted on the bottom of the sealing plate 231 , and a plurality of material taking ports 234 are formed on the outer side of the material taking barrel 232 .
[0084] Furthermore, a material taking cavity 233 is provided inside the material taking barrel 232 , and the material taking cavity 233 is communicated with a plurality of material taking ports 234 .
[0085] With the help of multiple material extraction ports 234, the freeze-dried food entering the installation sleeve 21 can enter the material extraction cavity 233. However, the internal space of the material extraction cavity 233 is limited, so that only a single freeze-dried food can be present, and thus the single freeze-dried food can be extracted.
[0086] Specifically disclosed, the spring member 24 comprises:
[0087] The spring outer sleeve 241 has an end portion fixedly connected to the sealing plate 231;
[0088] The spring inner sleeve 242 has one end movably inserted into the inner wall of the spring outer sleeve 241, and the other end of the spring inner sleeve 242 is fixedly connected to the inner top wall of the discharge cavity 221;
[0089] The two ends of the positioning spring 243 are fixedly connected to the inner walls of the spring outer sleeve 241 and the spring inner sleeve 242 respectively.
[0090] The outer spring sleeve 241 and the inner spring sleeve 242 are provided so as to protect and shield the positioning spring 243 , and the sealing plate 231 can be positioned under the action of the positioning spring 243 .
[0091] Furthermore, a pull rod 25 is movably inserted inside the positioning spring 243, one end of the pull rod 25 is fixedly connected to the inner wall of the spring outer sleeve 241, and the other end of the pull rod 25 passes through the top of the spring inner sleeve 242 and the top of the discharge sleeve 22 and extends outward.
[0092] Furthermore, a pull block 251 is fixedly connected to the top end of the pull rod 25 .
[0093] By providing the pull rod 25 and the pull block 251 , it is convenient to pull the spring outer sleeve 241 from the outside, thereby being able to pull the sealing plate 231 .
[0094] A material taking unit 2 is provided at the end of the plug body 11, and the mounting sleeve 21 is connected to the plug body 11. When taking materials from a glass bottle containing freeze-dried food, the glass bottle and the plug unit 1 are turned upside down to allow the freeze-dried food to enter the material taking rack 23, and then the material taking rack 23 is pulled to move toward the discharge sleeve 22, compressing the spring member 24 until the material taking rack 23 enters the discharge sleeve 22, and then the freeze-dried food in the material taking rack 23 is poured out. After loosening the material taking rack 23, the material taking rack 23 is reset under the action of the spring member 24, thereby facilitating the taking of a single freeze-dried food and avoiding contamination of other freeze-dried food.
[0095] By using the provided sealing plate 231, under normal conditions, the sealing plate 231 is tightly fitted with the inner wall of the sealing groove 223 under the action of the spring member 24, thereby being able to seal between the installation sleeve 21 and the discharge sleeve 22, and after the sealing plate 231 is pulled to separate the sealing plate 231 from the inner wall of the sealing groove 223, the bottom of the material taking frame 23 can still seal the lower half of the sealing groove 223, thereby still being able to seal between the installation sleeve 21 and the discharge sleeve 22;
[0096] Under the action of multiple feeding ports 234, the freeze-dried food entering the installation sleeve 21 can enter the feeding cavity 233, and the internal space of the feeding cavity 233 is limited, so that only a single freeze-dried food can exist, and then the single freeze-dried food can be taken out. After the freeze-dried food is brought into the discharging cavity 221 by using the feeding rack 23, the discharging port 222 can be used to take out the freeze-dried food in the feeding rack 23.
[0097] The outer spring sleeve 241 and the inner spring sleeve 242 are provided so as to protect and shield the positioning spring 243 , and the sealing plate 231 can be positioned under the action of the positioning spring 243 .
[0098] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A freeze-dried film-coated double-pronged rubber plug, characterized in that: include: The rubber plug unit (1) comprises: A rubber plug body (11) which can be installed on the mouth of a glass bottle containing freeze-dried food; The plug leg (12) is arranged at the end of the plug body (11) and is integrally formed with the plug body (11), and the bottom of the plug leg (12) is provided with an R-angle arc surface (13); A material taking unit (2) is installed at the end of the rubber plug body (11), and the material taking unit (2) comprises: Installing sleeve (21); A discharge sleeve (22) disposed at the end of the mounting sleeve (21); A material taking rack (23), which is arranged between the material discharging sleeve (22) and the installation sleeve (21), and can be used for taking out a single freeze-dried product; The spring member (24) is arranged between the material taking frame (23) and the material discharging sleeve (22) and is used to fix the position of the material taking frame (23).
2. A freeze-dried film-coated double-pronged rubber plug according to claim 1, characterized in that: Positioning blocks (14) are provided on the outer walls of the rubber plug body (11) and the rubber plug legs (12).
3. A freeze-dried film-coated double-pronged rubber plug according to claim 1, characterized in that: A feed port (15) is provided at the bottom of the rubber plug body (11), and a mounting hole (16) connected to the feed port (15) is provided at the top of the rubber plug body (11).
4. A freeze-dried film-coated bifurcated rubber plug according to claim 3, characterized in that: The bottom of the installation sleeve (21) is threadedly connected to the inner wall of the installation hole (16), and the top of the installation sleeve (21) is threadedly connected to the inner wall of the discharge sleeve (22).
5. The freeze-dried film-coated bifurcated rubber plug according to claim 1, characterized in that: A discharge cavity (221) is provided inside the discharge sleeve (22), and a discharge port (222) communicating with the discharge cavity (221) is provided on the outside of the discharge sleeve (22), and a sealing groove (223) is provided at the bottom of the discharge sleeve (22).
6. A freeze-dried film-coated bifurcated rubber plug according to claim 5, characterized in that: The material taking frame (23) comprises: A sealing plate (231) which is tightly fitted to the inner wall of the sealing groove (223); The material taking barrel (232) is fixedly mounted on the bottom of the sealing plate (231), and a plurality of material taking openings (234) are provided on the outer side of the material taking barrel (232).
7. A freeze-dried film-coated bifurcated rubber plug according to claim 6, characterized in that: A material taking cavity (233) is provided inside the material taking cylinder (232), and the material taking cavity (233) is communicated with a plurality of material taking ports (234).
8. The freeze-dried film-coated bifurcated rubber plug according to claim 6, characterized in that: The spring member (24) comprises: A spring outer sleeve (241), an end of which is fixedly connected to the sealing plate (231); The spring inner sleeve (242) has one end movably inserted into the inner wall of the spring outer sleeve (241), and the other end of the spring inner sleeve (242) is fixedly connected to the inner top wall of the discharge cavity (221); The two ends of the positioning spring (243) are respectively fixedly connected to the inner walls of the spring outer sleeve (241) and the spring inner sleeve (242).
9. A freeze-dried film-coated bifurcated rubber plug according to claim 8, characterized in that: A pull rod (25) is movably inserted inside the positioning spring (243), one end of the pull rod (25) is fixedly connected to the inner wall of the spring outer sleeve (241), and the other end of the pull rod (25) passes through the top of the spring inner sleeve (242) and the top of the discharge sleeve (22) and extends outward.
10. A freeze-dried film-coated bifurcated rubber plug according to claim 9, characterized in that: A pull block (251) is fixedly connected to the top end of the pull rod (25).