Combination of inner cap and bottle cap of penicillin bottle

Abstract

The invention relates to the technical field of medicine packaging, and provides an inner cap of a penicillin bottle, the inner cap comprises a main body and a toggle clip part, the main body is provided with a groove for accommodating a rubber plug, and the bottom wall of the groove is provided with a through hole; one end of the toggle clip part is arranged on the inner wall of the groove, and the other end of the toggle clip part extends towards the bottom wall of the groove. The invention further provides a penicillin bottle cap combination which comprises an inner cap, an outer cap sleeve and a top cap, the inner cap can be inserted into the outer cap sleeve, an opening is formed in the upper end face of the outer cap sleeve, and an insertion opening communicated with the opening is formed in the side wall of the outer cap sleeve; a positioning piece capable of being inserted into the outer cover sleeve is arranged at the lower end of the top cover, and the top cover can seal the opening after the positioning piece is inserted into the outer cover sleeve. And the top cover can be deformed and separated from the opening after being subjected to external force away from the outer cover sleeve. By means of the technical scheme, the technical problem that in the prior art, a traditional tamper-proof bottle cap is not easy to open is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of pharmaceutical packaging technology, and in particular, to an inner cap of a syringe bottle and a bottle cap assembly. Background Art

[0002] In the field of pharmaceutical packaging, in the prior art, as a commonly used drug storage container for injectables, biologics and other drugs, the sealing performance and opening convenience of the bottle cap of the vial are crucial to the safety and user experience of the drug. Traditional vial cap structures mostly use a single sealing component, which fixes the rubber stopper and the bottle mouth by simple pressing or threaded connection. This design has many disadvantages. On the one hand, the rubber stopper is easily loosened or aged due to external force during long-term storage, resulting in a decrease in sealing performance, which in turn causes drug contamination or failure; on the other hand, the bottle cap often requires the assistance of tools when opening, which is cumbersome to operate and there is a risk of scratching fingers. It is difficult to meet the needs of quick access, especially in emergency drug use scenarios. In addition, the traditional bottle cap structure requires multiple processes during assembly, with low production efficiency and high cost. In order to solve the above problems, it is urgent to develop a vial cap structure that can achieve reliable sealing and is easy to open and install quickly. Summary of the Invention

[0003] To overcome the above-mentioned defects, the embodiments of the present disclosure provide a syringe bottle inner cap and bottle cap combination, which solves the technical problem in the prior art that traditional tamper-proof bottle caps are difficult to open.

[0004] According to one aspect, at least one embodiment of the present disclosure provides an inner cap for a syringe bottle, which is used to install a rubber stopper on the bottle mouth of the syringe bottle, wherein the rubber stopper has a blocking portion extending into the bottle mouth and a pressing portion abutting against the end surface of the bottle mouth, and the inner cap comprises: A main body, the main body having a groove, a bottom wall of the groove having a through hole, and the groove is used to accommodate the rubber stopper; The clamping portion has at least one clamping portion, one end of which is arranged on the inner wall of the groove and the other end extends toward the bottom wall of the groove, and the clamping portion is used to abut against the lower end surface of the outer wall of the bottle mouth.

[0005] For example, in a syringe bottle inner cap provided by at least one embodiment of the present disclosure, it also includes: a buckle portion, the buckle portion has at least one buckle portion, one end of the buckle portion is arranged on the inner wall of the groove, and the other end extends toward the bottom wall of the groove, and the buckle portion is used to press the pressure cover portion toward the bottom wall of the groove.

[0006] For example, in a syringe bottle inner cap provided in at least one embodiment of the present disclosure, at least one through hole is opened in the side wall of the groove, and the through hole extends to the bottom wall of the groove, and a clip portion and a buckle portion are correspondingly provided in one of the through holes.

[0007] For example, in a vial inner cap provided by at least one embodiment of the present disclosure, a plurality of through holes are provided, and the plurality of through holes are spaced apart along the circumference of the main body.

[0008] For example, in an inner cap of a vial provided in at least one embodiment of the present disclosure, the outer side wall of the main body is provided with a clamping portion, and the clamping portion is used to clamp with the inner wall of the outer cap sleeve. According to another aspect, at least one embodiment of the present disclosure further provides a vial cap assembly, comprising the aforementioned vial inner cap, and further comprising: An outer cover sleeve, wherein the inner cover of the vial is inserted into the outer cover sleeve, an opening is provided on the upper end surface of the outer cover sleeve, and an insertion port communicating with the opening is provided on the side wall; The top cover is provided with a positioning piece at the lower end thereof, and the positioning piece can enter the outer cover sleeve through the insertion port to close the opening. When the top cover is subjected to an external force away from the outer cover sleeve, the positioning piece can be deformed and fall out of the opening.

[0009] For example, in the syringe bottle cap combination provided in at least one embodiment of the present disclosure, a connecting portion is provided at the lower end of the top cover, the positioning piece is arranged on the connecting portion, a positioning groove is formed between the positioning piece and the top cover, and the width of the insertion port is greater than the width of the opening so that an insert is formed at one end of the opening close to the insertion port, and the insert is used to be inserted into the positioning groove.

[0010] For example, in the vial cap assembly provided in at least one embodiment of the present disclosure, a stress groove is provided on a side of the insert away from the opening, and the stress groove is used to reduce resistance to deformation of the insert when opening the cap.

[0011] For example, in the syringe bottle cap assembly provided in at least one embodiment of the present disclosure, the outer side wall of the main body is provided with a clamping portion, and the inner wall of the outer cover sleeve is provided with a clamping groove, and the clamping groove is used to clamp with the clamping portion.

[0012] For example, in the vial cap assembly provided by at least one embodiment of the present disclosure, the top cap further includes A pull ring is provided with a raised portion, and the raised portion is used to lift the pull ring when opening the bottle cap.

[0013] For example, in the vial cap assembly provided in at least one embodiment of the present disclosure, a limiting groove is provided on the side wall of the outer cover sleeve, a limiting plate is provided on the top cover, and after the positioning piece enters the outer cover sleeve, the limiting plate abuts against the limiting groove.

[0014] For example, in the vial cap assembly provided in at least one embodiment of the present disclosure, a protrusion is provided at the lower end of the top cover, and the protrusion is used to be inserted into the through hole to constrain the position of the top cover in the horizontal direction.

[0015] For example, in the vial cap assembly provided in at least one embodiment of the present disclosure, a through hole is provided on the top of the outer cover sleeve, and the through hole is used to pass the protrusion.

[0016] For example, in the vial cap assembly provided in at least one embodiment of the present disclosure, the positioning piece includes: A positioning front piece is provided on the top cover, and the protrusion is located at the lower end of the positioning front piece; The positioning rear piece is arranged on the top cover and is spaced apart from the positioning front piece, and is used to reduce resistance when opening the bottle cap.

[0017] The beneficial effects of the embodiments of the present disclosure are: The present disclosure proposes an inner cap for a syringe bottle, which includes a main body and a clip portion. The clip portion can abut against the lower end surface of the outer wall of the bottle mouth, and the main body is provided with a groove for accommodating a rubber stopper. The inner cap can accommodate the rubber stopper and be buckled on the bottle body. The present disclosure also proposes a bottle cap assembly, which includes an inner cap, an outer cap sleeve, and a top cap. The inner cap can be inserted into the outer cap sleeve; a positioning piece can be inserted into the outer cap sleeve at the lower end of the top cap, and the top cap can be inserted into the outer cap sleeve through an insertion port connected to the opening. After the positioning piece is inserted into the outer cap sleeve, the top cap can close the opening. When the top cap is subjected to an external force away from the outer cap sleeve, it can be deformed and then fall out of the opening. After falling out, both the top cap and the outer cap sleeve are deformed by the external force and cannot be reinstalled, making the bottle cap opening process more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for describing the embodiments of the present disclosure. Obviously, the drawings described below are merely some exemplary embodiments of the present disclosure. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present disclosure and these drawings.

[0019] Figure 1 This is a schematic structural diagram of an inner cap of a vial in one embodiment of the present disclosure; Figure 2 This is a schematic diagram of the top cover structure of the bottle cap assembly in one embodiment of the present disclosure; Figure 3 This is a schematic structural diagram of an inner cap and a rubber stopper of a vial in one embodiment of the present disclosure; Figure 4 This is a schematic structural diagram of an outer cover sleeve of a bottle cap assembly in one embodiment of the present disclosure; Figure 5 This is a schematic diagram of the top cover structure of the bottle cap assembly in one embodiment of the present disclosure; Figure 6 is a cross-sectional view of a bottle cap assembly in one embodiment of the present disclosure; Figure 7 This is a cross-sectional view of a bottle cap assembly in one embodiment of the present disclosure mounted on a vial; Figure 8 The figure is a schematic structural diagram of a bottle cap assembly installed on a vial in one embodiment of the present disclosure.

[0020] In the figure: 100, inner cover, 110, main body, 111, groove, 1110, through hole, 1120, through hole, 120, clip part, 130, buckle part, 140, holding part, 200, rubber plug, 210, blocking part, 220, pressure cover part, 300, outer cover sleeve, 310, opening, 320, insertion port, 330, limiting groove, 340, through hole, 350, insert, 360, stress groove, 370, slot, 400, top cover, 410, positioning piece, 411, positioning front piece, 412, positioning rear piece, 420, connecting part, 430, positioning groove, 440, pull ring, 441, raised part, 450, limiting plate, 460, bump. DETAILED DESCRIPTION

[0021] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0022] To simplify the drawings, only the parts relevant to the disclosure are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0023] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0024] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present disclosure.

[0026] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] like Figure 1~Figure 2 As shown, it shows an inner cap of a syringe bottle in one embodiment of the present disclosure, and the inner cap 100 is used to install the rubber stopper 200 on the bottle mouth of the syringe bottle, and can be made of plastic. The blocking portion 210 of the rubber stopper 200 extends into the bottle mouth, and the pressure cover portion 220 abuts against the end face of the bottle mouth. The inner cap 100 is composed of a main body 110 and a clip portion 120. The main body 110 is cylindrical and has a groove 111 provided inside. The groove 111 is a cylindrical cavity and is located at the center of the main body 110. A through hole 1110 is provided on the bottom wall of the groove 111, and the pressure cover portion 220 of the rubber stopper 200 can be placed in the groove 111. One end of the clip portion 120 is connected to the inner wall of the groove 111, and the other end extends toward the bottom wall of the groove 111 to form a free end. During installation, the inner cover 100 is put onto the bottle mouth, and the clip part 120 is squeezed by the outer wall of the bottle mouth to produce elastic deformation. After passing the lower end surface of the bottle mouth, the elastic restoring force makes the free end abut against the lower end surface of the outer wall of the bottle mouth, thereby fixing the inner cover 100.

[0028] The inner cover 100 is also provided with a buckle portion 130, one end of which is connected to the inner wall of the groove 111, and the other end extends inward at an angle and has a pressing surface at the end. After the rubber stopper 200 is installed, the pressing surface of the buckle portion 130 contacts the pressure cover portion 220 of the rubber stopper 200, and the pressure generated by elastic deformation presses the pressure cover portion 220 tightly against the bottom wall of the groove 111. Through holes 1120 are provided on the side wall of the groove 111, extending from the side wall to the bottom wall of the groove 111. A clip portion 120 and a buckle portion 130 are correspondingly arranged in each through hole 1120, and the through holes 1120 are spaced along the circumference of the main body 110, providing space for the deformation of the clip portion 120 and the buckle portion 130 to avoid interference with other parts of the main body 110.

[0029] The through-hole 1120 in the side wall of the groove 111 is elongated, extending from the top of the side wall to the bottom wall of the groove 111. Its width is slightly larger than the width of the clip portion 120 and the buckle portion 130. The main body 110 of the clip portion 120 and the buckle portion 130 is partially located within the through-hole 1120, with only the free ends extending out of the through-hole 1120 and located within the groove 111. The provision of the through-hole 1120 not only provides deformation space for the clip portion 120 and the buckle portion 130, but also limits their radial displacement, ensuring that both deform in a predetermined direction when subjected to force. Multiple through-holes 1120 are evenly distributed along the circumference of the main body 110, and the angles between adjacent through-holes 1120 are equal, so that the forces acting on the clip portion 120 and the buckle portion 130 are evenly distributed around the bottle mouth. The synergistic effect of the buckle portion 130 and the clip portion 120 forms a dual fixing mechanism. The clip portion 120 abuts against the lower end of the outer wall of the bottle mouth, preventing the inner cap 100 from falling axially. The buckle portion 130 applies pressure to the rubber stopper 200, pressing the cap portion 220, to ensure a tight fit between the rubber stopper 200 and the bottle mouth. This dual fixing mechanism significantly improves the sealing performance of the vial, especially during drug storage, effectively resisting the effects of external factors such as temperature fluctuations and vibration, and reducing the risk of drug contamination.

[0030] The outer wall of the main body 110 is provided with an annularly raised retaining portion 140, and the inner wall of the outer cover sleeve 300 is provided with a cooperating retaining groove 370. The retaining portion 140 on the outer wall of the main body 110 is a continuous annular protrusion, while the retaining groove 370 on the inner wall of the outer cover sleeve 300 is a corresponding annular groove 111. When the inner cover 100 is inserted into the outer cover sleeve 300, as the inner cover 100 is inserted axially along the outer cover sleeve 300, the retaining portion 140 elastically deforms and slightly contracts due to the force. Once it reaches the retaining groove 370, it relies on its elastic restoring force to embed into it, achieving a secure connection between the inner cover 100 and the outer cover sleeve 300. From a functional perspective, the cooperating annular retaining portion 140 and retaining groove 370 between the inner cover 100 and the outer cover sleeve 300 can provide more uniform circumferential restraining force and axial positioning force compared to traditional single-point or multi-point clamping. This design creates a tighter connection, effectively resisting external forces such as vibration and squeezing during transportation and preventing the cap assembly from loosening when not in use, thereby ensuring a tight seal and safety during drug storage. Furthermore, the annular snap-fit ​​structure assembles simply and efficiently, eliminating the need for complex alignment operations and contributing to improved production efficiency.

[0031] like Figures 3 to 7As shown, it shows a bottle cap assembly in one embodiment of the present disclosure, wherein the upper end surface of the outer cover sleeve 300 has an opening 310, and the side wall is provided with an insertion port 320 connected to the opening 310. The width of the insertion port 320 of the outer cover sleeve 300 is greater than the width of the opening 310; one side of the insertion port 320 is connected to the opening 310, so that an insert 350 is formed at one end of the opening 310 close to the insertion port 320, and two inserts 350 are provided, symmetrically arranged on both sides of the opening 310, for inserting into the positioning groove 430. The lower end connecting portion 420 of the top cover 400 is connected to a positioning piece 410 spaced apart from the main body of the top cover 400. The positioning piece 410 includes a positioning front piece 411 and a positioning rear piece 412. The positioning rear piece 412 and the positioning front piece 411 are spaced apart on the top cover 400. This structural design plays a key role in reducing drag during the opening of the bottle cap. When the pull ring 440 of the top cover 400 is pulled upward, the front positioning piece 411 first contacts the edge of the opening 310 and undergoes elastic deformation. At this point, a gap exists between the rear positioning piece 412 and the edge of the opening 310, preventing the two from being subjected to simultaneous force and forming double frictional resistance. As the front positioning piece 411 gradually separates from the opening 310, the rear positioning piece 412 begins to contact the edge of the opening 310. This phased force pattern significantly reduces the overall opening resistance. In addition, this spaced layout ensures that the overall force on the positioning piece 410 is more evenly distributed, reducing deformation and jamming caused by localized stress concentration, ensuring that the positioning piece 410 can be removed from the opening 310 more smoothly, further improving the fluency and convenience of the lid opening operation. The protrusion 460 at the lower end of the front positioning piece 411 can be inserted through the through hole 340 at the top of the outer cover sleeve 300, facilitating the opening of the bottle cap. The protrusion 460 can also be inserted into the through hole 1110 of the inner cover 100, limiting the displacement of the top cover 400 in the horizontal direction. The through-hole 340 is typically a circular hole. The circumferential contour of a circular hole lacks stress concentration points. When the protrusion 460 is inserted, the load is evenly distributed along the circumference of the hole wall, preventing material fatigue fracture caused by stress concentration at corners. The stress groove 360 ​​on the side of the insert 350, away from the opening 310, facilitates deformation of the insert 350 during lid opening. The retaining groove 330 on the sidewall of the outer cover sleeve 300 abuts against the retaining plate 450 on the top cover 400, further securing the top cover 400. When the positioning piece 410 is inserted into the outer cover sleeve 300, the retaining plate 450 fits neatly into the retaining groove 330, restricting the circumferential rotation of the top cover 400. The pull ring 440 on the top cover 400 is equipped with a raised portion 441. When the pull ring 440 is pulled, the positioning piece 410 is deformed and released from the opening 310, allowing the lid to be opened. Both the top cover 400 and the outer cover sleeve 300 are made of plastic, and deformation cannot be restored. The raised portion 441 on the pull ring 440 increases the contact area between the finger and the pull ring 440, providing a better point for applying force, making the lid opening operation more convenient, especially when medications need to be quickly accessed. The raised portion 441 increases the friction between the finger and the pull ring 440, preventing slipping when pulling. Its shape design facilitates the user's application of force, making the lid opening operation easier and smoother.The dual limiting structure of the limiting groove 330 and limiting plate 450, and the protrusion 460 and through-hole 1110, provides three-dimensional constraints on the top cover 400 in both the circumferential and horizontal directions, forming a stable positioning system. This multi-dimensional limiting design not only improves the stability of the bottle cap assembly in the assembled state, but also ensures the precise fit between the positioning piece 410 and the insert 350 during use, effectively preventing problems such as seal failure or difficulty in opening caused by deviation of the top cover 400, significantly improving the reliability and durability of the overall structure.

[0032] In this structure, the groove 111 and the through hole 1110 of the main body 110 provide positioning support for the rubber stopper 200, ensuring accurate fit with the bottle mouth; the clip portion 120 secures the inner cap 100 through an elastic clamping force, which is more stable than traditional connection methods; the buckle portion 130 and the clip portion 120 form a double fixation, the former ensuring that the rubber stopper 200 fits tightly to the bottle mouth, and the latter ensuring the connection between the inner cap 100 and the bottle mouth, jointly improving the sealing performance of the syringe bottle. The through hole 1120 allows the clip portion 120 and the buckle portion 130 to deform normally when subjected to force. The even distribution of multiple through holes 1120 makes the force more balanced and improves installation stability. The snap connection structure between the main body 110 and the outer cap sleeve 300 simplifies the assembly process and improves production efficiency. The positioning and limiting structure of the top cover 400 and the outer cover sleeve 300 ensure that the bottle cap is stable when it is not opened; the pull ring 440, positioning piece 410 and other designs make the opening operation simple and tool-free, meeting emergency use needs; the stress groove 360 ​​reduces deformation resistance, reduces the risk of component damage, and extends the service life of the bottle cap.

[0033] During use, the groove 111 of the main body 110 is aligned with the gland portion 220 of the rubber stopper 200, so that the gland portion 220 is inserted into the groove 111. The buckle portion 130 of the inner cover 100 extends inwardly from the inner wall of the groove 111, and its end contacting the gland portion 220. The buckle portion 130 generates upward pressure due to elastic deformation, pressing the gland portion 220 tightly against the bottom wall of the groove 111.

[0034] The second step is to insert the positioning piece 410 of the top cover 400 (including the front positioning piece 411 and the rear positioning piece 412) through the insertion opening 320 of the outer cover sleeve 300. The insertion opening 320 is wider than the opening 310 and is connected to the opening 310 on one side, facilitating the tilted insertion of the positioning piece 410. The limiting plate 450 of the top cover 400 engages with the limiting groove 330 on the side wall of the outer cover sleeve 300 to prevent the top cover 400 from rotating circumferentially.

[0035] In the third step, the inner cap 100 is axially inserted into the outer cap sleeve 300. The retaining portion 140 is squeezed by the inner wall of the outer cap sleeve 300, causing it to elastically contract. When inserted into the retaining slot 370, the retaining portion 140 recovers its shape and engages the retaining slot 370. Simultaneously, the protrusion 460 engages the through-hole 1110 of the inner cap 100, limiting the horizontal displacement of the top cap 400. This forms an annular snap-fit ​​connection, securing the outer cap sleeve 300 and the inner cap 100 circumferentially and axially. This structure eliminates the need for precise alignment, improving assembly efficiency, and the annular snap-fit ​​connection resists transport vibration and prevents loosening. Finally, the inner cap 100 is aligned with the vial's mouth and pressed downward to fit over it. The clip portion 120 is squeezed outward by the outer wall of the mouth, causing it to elastically deform. Once the clip portion 120 passes over the lower end of the mouth, the elastic restoring force causes its free end to rebound inward, contacting the lower end of the mouth's outer wall, creating an axial snap-fit ​​connection and preventing the inner cap 100 from falling off. At this point, the plugging portion 210 of the rubber stopper 200 is inserted into the mouth of the vial, and the capping portion 220 abuts against the end surface of the mouth, forming a seal to prevent leakage of the drug within the bottle. The through-holes 1120 provide radial space for the clipping portion 120 to deform, preventing interference with the main body 110. Multiple clipping portions 120 are evenly distributed along the circumference, ensuring a uniform clamping force on the bottle mouth.

[0036] To open the bottle cap, a finger hooks the pull ring 440 of the top cover 400 and applies an upward pull. The raised portion 441 on the pull ring 440 increases the contact area between the finger and the pull ring, providing a stable point for force application while also increasing friction to prevent slipping. At this point, the top cover 400 is subjected to axial tension, driving the positioning pieces 410 (the front positioning piece 411 and the rear positioning piece 412) upward. The protrusion 460 at the lower end of the front positioning piece 411 originally passed through the through hole 340 of the outer cover sleeve 300 and inserted into the through hole 1110 of the inner cover 100. When the top cover 400 moves upward, the front positioning piece 411 first contacts the edge of the opening 310 on the upper end face of the outer cover sleeve 300. Because the width of the opening 310 is smaller than the expanded width of the positioning piece 410, the front positioning piece 411 is forced to bend outward and produce elastic deformation. As the top cover 400 continues to move upward, the front positioning piece 411 gradually separates from the opening 310, and the rear positioning piece 412 begins to contact the edge of the opening 310, repeating the above deformation process. This design of spaced positioning pieces allows the top cover 400 to release the force in stages when opening, which reduces the overall opening resistance compared to traditional synchronous force structures.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all of these should be included in the scope of the claims of the present disclosure.

Claims

1. A cillin bottle inner cap, used for installing a rubber stopper (200) on the bottle mouth of a cillin bottle, wherein the rubber stopper (200) comprises a blocking portion (210) extending into the bottle mouth and a pressing portion (220) abutting against the end surface of the bottle mouth, characterized in that: The inner cover (100) comprises: A main body (110), the main body (110) having a groove (111), a bottom wall of the groove (111) being provided with a through hole (1110), and the groove (111) being used to accommodate a rubber stopper (200); The clamping portion (120) has at least one clamping portion (120), one end of the clamping portion (120) is arranged on the inner wall of the groove (111), and the other end extends toward the bottom wall of the groove (111), and the clamping portion (120) is used to abut against the lower end surface of the outer wall of the bottle mouth.

2. The inner cap of the vial according to claim 1, characterized in that: Also includes: A buckling portion (130), the buckling portion (130), the buckling portion (130), having at least one, one end of the buckling portion (130) being arranged on the inner wall of the groove (111), and the other end extending toward the bottom wall of the groove (111), the buckling portion (130) being used to press the pressing cover portion (220) toward the bottom wall of the groove (111).

3. The inner cap of the vial according to claim 2, characterized in that: At least one through hole (1120) is formed on the side wall of the groove (111), and the through hole (1120) extends to the bottom wall of the groove (111). A clip portion (120) and a buckling portion (130) are correspondingly provided in one of the through holes (1120).

4. The inner cap of the vial according to claim 3, characterized in that: A plurality of through holes (1120) are provided, and the plurality of through holes (1120) are arranged at intervals along the circumference of the main body (110).

5. The inner cap of a vial according to claim 1, characterized in that: The outer side wall of the main body (110) is provided with a clamping portion (140), and the clamping portion (140) is used to clamp with the inner wall of the outer cover sleeve (300).

6. A vial cap assembly, characterized in that: The inner cover (100) comprises the inner cover (100) according to any one of claims 1 to 5, and further comprises: An outer cover sleeve (300), wherein the inner cover (100) of the vial is inserted into the outer cover sleeve (300), an opening (310) is provided on the upper end surface of the outer cover sleeve (300), and an insertion port (320) communicating with the opening (310) is provided on the side wall; A top cover (400) is provided with a positioning piece (410) at the lower end of the top cover (400), and the positioning piece (410) can enter the outer cover sleeve (300) through the insertion port (320) to close the opening (310), and when the top cover (400) is subjected to an external force away from the outer cover sleeve (300), the positioning piece (410) can be deformed and fall out of the opening (310).

7. The vial cap assembly according to claim 6, characterized in that: A connecting portion (420) is provided at the lower end of the top cover (400), the positioning piece (410) is provided on the connecting portion (420), a positioning groove (430) is formed between the positioning piece (410) and the top cover (400), the width of the insertion port (320) is greater than the width of the opening (310) so that an inserting piece (350) is formed at one end of the opening (310) close to the insertion port (320), and the inserting piece (350) is used to be inserted into the positioning groove (430).

8. The vial cap assembly according to claim 7, characterized in that: A stress groove (360) is provided on a side of the inserting piece (350) away from the opening (310), and the stress groove (360) is used to reduce the resistance to deformation of the inserting piece (350) when the cover is opened.

9. The vial cap assembly according to claim 6, characterized in that: A clamping portion (140) is provided on the outer wall of the main body (110), and a clamping groove (370) is provided on the inner wall of the outer cover sleeve (300), wherein the clamping groove (370) is used for clamping with the clamping portion (140).

10. The vial cap assembly according to claim 6, characterized in that: The top cover (400) also includes A pull ring (440) is provided with a raised portion (441) on the pull ring (440), and the raised portion (441) is used to lift the pull ring (440) when opening the bottle cap.

11. The vial cap assembly according to claim 6, characterized in that: A limiting groove (330) is provided on the side wall of the outer cover sleeve (300), and a limiting plate (450) is provided on the top cover (400). After the positioning piece (410) enters the outer cover sleeve (300), the limiting plate (450) abuts against the limiting groove (330).

12. The vial cap assembly according to claim 6, characterized in that: A protrusion (460) is provided at the lower end of the top cover (400), and the protrusion (460) is used to be inserted into the through hole (1110) to constrain the position of the top cover (400) in the horizontal direction.

13. The vial cap assembly according to claim 12, characterized in that: A through hole (340) is provided on the top of the outer cover sleeve (300), and the through hole (340) is used for passing the protrusion (460).

14. The vial cap assembly according to claim 13, characterized in that: The positioning piece (410) includes: A positioning front piece (411) is provided on the top cover (400), and the protrusion (460) is located at the lower end of the positioning front piece (411); The positioning rear plate (412) is arranged on the top cover (400) and is spaced apart from the positioning front plate (411) to reduce resistance when opening the bottle cap.

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