A cap assembly and a tubular container
By designing a self-locking cap assembly, the problems of easy leakage and theft in cosmetic tube flip caps are solved, achieving the effects of preventing leakage and saving packaging, providing a simple user experience and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIRAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-23
AI Technical Summary
Existing cosmetic tubular containers with flip-top lids are easily opened by external force, leading to leakage, and lack anti-theft features, making conventional packaging a waste of resources.
A cover assembly was designed, including an outer cover, an inner cover, and an anti-theft ring. The self-locking function is achieved by the cooperation of the upper cover limiting rib and the inner cover limiting groove. The anti-theft function is achieved by combining the annular fracture bridge. The design of the inner cover limiting groove and the upper cover limiting rib ensures that the flip cover is not easy to open. The cooperation of the outer cover anti-theft teeth and the inner cover anti-theft teeth prevents unauthorized opening.
It effectively prevents cosmetic tubes from leaking under external force, reduces packaging waste, and provides a convenient user experience and environmental benefits.
Smart Images
Figure CN224393425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily chemical products technology, and more specifically, to a cap assembly and a tubular container using the cap assembly. Background Technology
[0002] Existing cosmetic products such as facial cleansers, hand creams, and toothpaste typically use packaging with flip-top caps. The cap and dispensing nozzle are usually connected by threads, and the dispensing nozzle has an aluminum foil seal at the outlet. Before use, the cap must be unscrewed, the foil seal removed, the cap tightened, and finally the top cover opened. Squeezing the dispensing tube forces the product out of the outlet. Because the interference fit between the upper cap plunger and the lower cap plunger in conventional flip-top caps is not particularly tight due to the required opening force, the cap can easily open when the dispensing tube is placed in a bag or pocket. External force can then force open the cap, causing leakage, wasting product and polluting the environment. Secondly, conventional material tubes and flip-tops are connected by threads and do not have anti-theft features. Anti-theft measures are usually achieved by adding an outer packaging. Consumers need to remove the outer packaging before use and then peel off the seal before normal use, which results in material waste and environmental pollution. Summary of the Invention
[0003] To address the aforementioned problems, this utility model provides a cover assembly, including an outer cover and an inner cover. The outer cover includes an upper cover, a lower cover, and an anti-theft ring. The upper cover and the lower cover are hinged at one end. The anti-theft ring is located below the lower cover and forms an annular fracture bridge with the lower cover. The inner cover includes a top surface, an annular sidewall extending downward along the periphery of the top surface, and an outwardly protruding skirt connected to the lower end of the annular sidewall. An inner cover limiting groove is also provided on the top surface of the inner cover. The overall shape of the inner cover limiting groove is an arc extending circumferentially. The inner cover limiting groove includes a locking section, a transition section, and an unlocking section. The width of the unlocking section is greater than the width of the locking section.
[0004] The top surface of the cover has a downwardly extending upper cover limiting rib at its bottom. A barb is provided at the end of the upper cover limiting rib. The thickness of the upper cover limiting rib is the same as the width of the locking section. The position of the upper cover limiting rib corresponds to the position of the inner cover limiting through groove. When the upper cover rotates, the upper cover limiting rib slides in the inner cover limiting through groove. When the upper cover limiting rib is in the locking section, the barb hooks onto the lower end face of the inner cover limiting through groove to prevent the upper cover from flipping up relative to the lower cover. When the upper cover limiting rib is in the unlocking section, the upper cover can flip up relative to the lower cover. The outer side of the upper cover is also provided with a concave surface or protruding buckle to facilitate flipping up. The concave surface or protruding buckle is set opposite to the hinge position.
[0005] Furthermore, multiple inner cover anti-theft teeth are also provided on the outer circumferential surface of the lower part of the annular sidewall. Multiple outer cover anti-theft teeth that cooperate with the inner cover anti-theft teeth are provided on the inner circumferential surface of the anti-theft ring. Before the annular fracture bridge breaks, when the upper cover limiting rib moves from the locking section to the unlocking section, it prevents the anti-theft ring from rotating relative to the inner cover.
[0006] Furthermore, there are multiple inner cover limiting slots and upper cover limiting ribs, and the multiple inner cover limiting slots are arranged symmetrically with respect to the center of the top surface of the inner cover, or arranged at different radii of a circle centered on the top surface of the inner cover.
[0007] Furthermore, text or graphic markings are provided on the annular sidewall to indicate "closed" and "open," respectively, where "closed" corresponds to the location of the locking section and "open" corresponds to the location of the unlocking section.
[0008] Furthermore, an observation window is provided on the side wall of the lower cover for observing some of the text or graphic markings on the inner cover.
[0009] Furthermore, at least one first fixed rib is provided on the outer circumferential surface of the middle part of the annular sidewall, and a second fixed rib is provided on both sides of the first fixed rib at a certain distance. The first fixed rib and the second fixed rib are located on the same horizontal plane and extend along the circumferential direction, so that a first positioning notch and a second positioning notch are formed between the two ends of the first fixed rib and the two adjacent second fixed ribs.
[0010] The inner wall of the lower cover is provided with a plurality of circumferentially extending lower cover fixing grooves. A lower cover limiting rib is provided between adjacent lower cover fixing grooves. The width of the first positioning notch and the second positioning notch is the same as the width of the lower cover limiting rib, thereby limiting its position. When the lower cover rotates, the lower cover limiting rib can pass over the first fixing rib and switch between the first positioning notch and the second positioning notch. The lower cover fixing groove is used to accommodate the first fixing rib and the second fixing rib.
[0011] Furthermore, a cap plunger is provided at the center of the bottom of the top surface of the cap, and a cap discharge pipe is provided at the center of the upper part of the top surface of the inner cap. When the cap is fastened to the inner cap, the cap plunger is inserted into the cap discharge pipe, thereby blocking the cap discharge pipe.
[0012] This utility model also provides a tubular container, including a material tube and the above-mentioned cover assembly. The upper part of the material tube is provided with a cylindrical connecting part, and a discharge hole is provided in the center. The upper outer periphery of the cylindrical connecting part is provided with an annular flange. The lower end of the top surface of the inner cover is provided with a downwardly extending positioning cylinder. The inner periphery of the positioning cylinder is provided with annular upper and lower limiting ribs. When the inner cover is fastened on the material tube, the upper and lower limiting ribs are located below the annular flange.
[0013] Furthermore, a fixing notch is provided on the annular flange, and a rotating limiting rib extending vertically is provided on the inner periphery of the positioning cylinder. When the inner cover is fastened on the material tube, the rotating limiting rib passes through the fixing notch.
[0014] Furthermore, the lower end of the top surface of the inner cover is provided with a downwardly extending inner cover discharge pipe, which is interference-fitted with the discharge hole.
[0015] Furthermore, a downward-extending annular rib is provided on the top surface of the inner cover. The annular rib is located between the positioning cylinder and the inner cover discharge pipe, and its lower end abuts against the upper surface of the discharge hole.
[0016] In this invention, the cooperation between the upper cover limiting rib and the inner cover limiting groove enables the upper cover to open with a self-locking function, preventing the cover from opening under external force and causing material to flow out. Secondly, the self-locking function can be achieved by rotating the upper or lower cover, making operation simple and effortless. An upper cover plunger is installed inside the upper cover; once the upper cover is closed, it directly prevents material from flowing out of the material tube, reducing the need to tear off the aluminum foil label before use, thus simplifying user convenience. Finally, the design of a ring-shaped fracture bridge provides anti-theft functionality, saves on outer packaging, reduces material usage, and is environmentally friendly. Furthermore, the observation window and text or graphic markings allow users to easily identify the current opening and closing status. Attached Figure Description
[0017] Figure 1 This is a view of the assembled cover assembly and feed tube;
[0018] Figure 2 This is the outer view of the inner cover;
[0019] Figure 3 This is a top view of the inner cover;
[0020] Figure 4 This is a schematic diagram of the outer cover structure. Figure 1 ;
[0021] Figure 5 This is a schematic diagram of the outer cover structure. Figure 2 ;
[0022] Figure 6 This is a schematic diagram showing the anti-theft ring and inner cover in their initial state.
[0023] Figure 7 This is a schematic diagram of the material pipe structure;
[0024] Figure 8 This is an internal view of the inner cover;
[0025] Figure 9 This is a cross-sectional view of the cover assembly and the feed tube after assembly. Detailed Implementation
[0026] See Figure 1 The cover assembly of this utility model includes an outer cover 1 and an inner cover 2. The inner cover 2 is fixedly connected to a material tube 3, which can hold substances such as facial cleanser, hand cream, and toothpaste. The outer cover 1 includes an upper cover 4, a lower cover 5, and an anti-theft ring 6. The upper cover 4 and the lower cover 5 are hinged at one end, so that the upper cover 4 can be flipped open relative to the lower cover 5. The anti-theft ring 6 is located below the lower cover 5, and there is an annular fracture bridge 11 between the lower cover 5 and the lower cover 5. When the lower cover 5 rotates to a certain angle relative to the anti-theft ring 6, the annular fracture bridge 11 breaks, thereby separating the lower cover 5 and the anti-theft ring 6.
[0027] See Figures 2-3 The inner cover 2 includes an inner cover top surface 21, which is generally circular, an annular sidewall 22 extending downward along the periphery of the inner cover top surface 21, and an outwardly protruding skirt 23 connected to the lower end of the annular sidewall 22.
[0028] The top surface 21 of the inner cover is also provided with two inner cover limiting grooves 25 symmetrical to the center of the top surface 21. The overall shape of the inner cover limiting grooves 25 is an arc extending along the circumference. The inner cover limiting grooves 25 include a locking section 251, a transition section 252, and an unlocking section 253. The width (radial distance) of the unlocking section 253 is greater than the width of the locking section 251. Preferably, on the annular sidewall 22, corresponding to the positions of the locking section 251 and the unlocking section 253, text or graphic markings 220 are provided to indicate "closed" and "open" respectively. For example, it can be the Chinese characters for "closed" / "open", the English words "OFF / ON", or patterns representing "closed" and "open".
[0029] At least one first fixing rib 221 is provided on the outer circumferential surface of the middle part of the annular sidewall 22. Second fixing ribs 222 are respectively provided on both sides of the first fixing rib 221 at a certain distance. The first fixing rib 221 and the second fixing ribs 222 are located on the same horizontal plane and extend circumferentially, thereby forming a first positioning notch 223 and a second positioning notch 224 between the two ends of the first fixing rib 221 and the two adjacent second fixing ribs 222. Multiple inner cover anti-theft teeth 26 distributed circumferentially are also provided on the outer circumferential surface of the lower part of the annular sidewall 22.
[0030] See Figures 4-5The diagram shows the structure of the outer cover. The inner wall of the anti-theft ring 6 has multiple outer cover anti-theft teeth 10 arranged circumferentially. These outer cover anti-theft teeth 10 cooperate with the inner cover anti-theft teeth 26 on the inner cover to prevent the anti-theft ring from rotating clockwise relative to the inner cover during the first unlocking process. The inner wall of the lower cover 5 has multiple circumferentially extending lower cover fixing grooves 9. A lower cover limiting rib 8 is provided between adjacent lower cover fixing grooves 9. The width of the first positioning notch 223 and the second positioning notch 224 is the same as the width of the lower cover limiting rib 8, thus limiting its movement. When the lower cover 5 rotates, the lower cover limiting rib 8 can pass over the first fixing rib 221 and switch between the first positioning notch 223 and the second positioning notch 224.
[0031] The top surface 41 of the upper cover 4 has two downwardly extending upper cover limiting ribs 7, with barbs 71 at the ends of the upper cover limiting ribs 7. The two upper cover limiting ribs 7 correspond to two inner cover limiting through grooves 25 on the inner cover, respectively. When the upper cover 4 rotates, it can slide along the two inner cover limiting through grooves 25. The thickness of the upper cover limiting ribs 7 is basically the same as the width of the locking section 251. An observation window 12 can also be provided on the side wall of the lower cover 5, through which some text or graphic markings 220 on the inner cover can be seen.
[0032] In the optimal implementation, there are two inner cover limiting slots 25 and two upper cover limiting ribs 7, which are symmetrical with respect to the top surface 21 of the inner cover. When the upper cover rotates relative to the inner cover, the force is evenly distributed, and the rotation is relatively stable. Those skilled in the art will understand that there can also be one, three, or more inner cover limiting slots 25 and upper cover limiting ribs 7. When there are multiple slots, the inner cover limiting slots 25 can also be arranged at different radii of a circle centered on the top surface 21 of the inner cover, and are not necessarily limited to a centrally symmetrical arrangement.
[0033] Furthermore, a concave surface 44 is provided on the outer side of the top cover to facilitate flipping it open. The concave surface is located on the opposite side of the hinge position of the top and bottom covers. When it is necessary to flip open the top cover, the fingers can be pressed into the concave surface 44 for easy application of force. Alternatively, the concave surface 44 can be replaced with a protruding buckle. When flipping open the top cover, the fingers can be pressed against the protruding buckle to apply force, which is also a common flip-cover method.
[0034] The following describes the fit between the outer cover 1 and the inner cover 2. During assembly, the outer cover 1 is snapped onto the inner cover 2, with the upper cover limiting rib 7 passing through the locking section 251 and the barb 71 hooking the lower end face of the inner cover limiting through groove 25. This prevents the upper cover 4 from flipping relative to the lower cover 5, thus preventing the outer cover 1 from opening and achieving the purpose of preventing opening. The first fixing rib 221 and the second fixing rib 222 on the inner cover are embedded in the lower cover fixing groove 9, preventing the outer cover 1 from being pulled upward relative to the inner cover 2. The lower cover limiting rib 8 is located within the second positioning notch 224, creating resistance to the rotation of the outer cover 1 relative to the inner cover 2. Simultaneously, the anti-theft teeth 10 on the outer cover and the anti-theft teeth 26 on the inner cover also create rotational resistance. The observation window 12 also corresponds to the "closed" text or graphic mark 220.
[0035] When consumers purchase and need to use it, they should rotate clockwise (relative to...). Figure 2 (Viewed from above as a reference circumference) When the outer cover 1 is screwed on forcefully, the anti-theft ring 6 will not rotate because the anti-theft teeth 10 on the outer cover and the anti-theft teeth 26 on the inner cover abut against each other. The upper cover 4 and lower cover 5 will rotate, at which point the annular fracture bridge 11 will break. See also... Figure 6 In the initial state, the upper cover limiting rib 7 is located within the locking section 251. At this time, the upper cover 4, lower cover 5 and anti-theft ring 6 will not move freely in the counterclockwise direction, while the outer cover anti-theft tooth 10 and the inner cover anti-theft tooth 26 abut against each other. Without force, the upper cover 4, lower cover 5 and anti-theft ring 6 will not move freely in the clockwise direction.
[0036] Furthermore, the lower cover limiting rib 8, due to elastic deformation, will disengage from the second positioning notch 224 and slide against the outside of the first fixing rib 221 until it reaches the position of the first positioning notch 223. It will then elastically recover and fall into the first positioning notch 223, producing a "click" sound to indicate that it has rotated to the correct position. At this time, the observation window 12 also rotates to the "open" position of the text or graphic mark 220. Simultaneously with the rotation of the outer cover 1, the upper cover limiting rib 7 also rotates from the locking section 251 to the unlocking section 253. Since the width of the unlocking section 253 is greater than the width of the locking section 251, which is also greater than the thickness of the upper cover limiting rib 7, when the upper cover 4 is flipped, the barb 71 at the lower end of the upper cover limiting rib 7 will no longer be obstructed by the lower end face of the inner cover limiting groove 25, allowing it to be flipped open normally. Therefore, for the upper cover 4 to open freely, the annular fracture bridge 11 must break. Thus, whether the annular fracture bridge 11 is broken can be used to determine whether it has been used, thereby achieving an anti-theft function. After use, rotate the upper cover 4 or the lower cover 5 counterclockwise. At this time, the upper cover limiting rib 7 moves from the unlocking section 253 to the locking section 251. The barb 71 is then obstructed by the lower end face of the inner cover limiting groove 25, thus preventing the upper cover 4 from flipping up. At the same time, the lower cover limiting rib 8 will elastically deform, disengage from the first positioning notch 223, and slide on the outside of the first fixing rib 221 until it reaches the second positioning notch 224. Then, it elastically recovers and falls into the second positioning notch 224, making a "click" sound to indicate that it has been rotated into place.
[0037] See Figure 7 The upper part of the feed pipe 3 is provided with a cylindrical connecting part 31, and a discharge hole 32 is provided in the center of the connecting part 31. An annular flange 33 is provided on the upper outer periphery of the cylindrical connecting part 31. Furthermore, a fixing notch 34 is also provided on the annular flange 33. See also... Figure 7 The lower end of the top surface 21 of the inner cover is provided with a downwardly extending positioning cylinder 27 and an inner cover discharge pipe 28. The inner periphery of the positioning cylinder 27 is provided with annular upper and lower limiting ribs 271. Preferably, it is also provided with vertically extending rotational limiting ribs 272. When the inner cover 2 is fastened onto the material pipe 3, the upper and lower limiting ribs 271 are located below the annular flange 33, thereby preventing the inner cover 2 and the material pipe 3 from detaching. The rotational limiting ribs 272 pass through the fixing notch 34, thereby preventing the inner cover 2 and the material pipe 3 from rotating and sliding. In addition, the inner cover discharge pipe 28 and the discharge hole 32 are interference-fitted to form a material passage.
[0038] See Figure 9 as well as Figure 5 A cap plunger 42 is provided at the center of the bottom of the top surface 41 of the cap 4, see [reference]. Figure 8 as well as Figure 2The upper center of the top surface 21 of the inner cover is provided with an upper cover discharge pipe 24. When the upper cover 4 is fastened on the inner cover 2, the upper cover plunger 42 is inserted into the upper cover discharge pipe 24, thereby blocking the upper cover discharge pipe 24. After the upper cover 4 is opened, it squeezes the material pipe 3, and the material in the material pipe 3 flows into the inner cover discharge pipe 28 through the discharge hole 32, and finally flows out from the upper cover discharge pipe 24.
[0039] Further, see Figure 9 An annular rib 29 extending downward is provided on the top surface 21 of the inner cover. The annular rib 29 is located between the positioning cylinder 27 and the inner cover discharge pipe 28, and its lower end abuts against the upper surface of the discharge hole 32, thereby limiting the inner cover.
[0040] In this invention, the upper cover limiting rib 7 and the inner cover limiting through groove 25 work together to enable the upper cover 4 to open with a self-locking function, preventing the cover from opening under external force and causing the material head to flow out. Secondly, the self-locking function can be achieved by rotating the upper cover 4 or the lower cover 5, making operation simple and effortless. An upper cover plunger 42 is provided inside the upper cover 4; when the upper cover 4 is closed, it directly prevents the material from flowing out of the material tube, reducing the need to tear off the aluminum foil label before using conventional material tubes, thus making it more convenient for consumers. Finally, the design of the annular fracture bridge 11 provides an anti-theft function, saves on outer packaging, reduces material usage, and is environmentally friendly. Furthermore, the observation window and text or graphic markings 220 allow users to easily identify the current opening and closing status.
[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A cover assembly, characterized in that, The device includes an outer cover (1) and an inner cover (2). The outer cover (1) includes an upper cover (4), a lower cover (5), and an anti-theft ring (6). The upper cover (4) and the lower cover (5) are hinged at one end. The anti-theft ring (6) is located below the lower cover (5) and forms an annular fracture bridge (11) between it and the lower cover (5). The inner cover (2) includes an inner cover top surface (21), an annular sidewall (22) extending downward along the periphery of the inner cover top surface (21), and a ring connecting the inner cover top surface (21) to the outer cover (22). The lower end of the annular sidewall (22) is connected to an outwardly protruding skirt (23), and the top surface (21) of the inner cover is also provided with an inner cover limiting groove (25). The inner cover limiting groove (25) is an arc extending along the circumference. The inner cover limiting groove (25) includes a locking section (251), a transition section (252), and an unlocking section (253). The width of the unlocking section (253) is greater than the width of the locking section (251). The top surface (41) of the upper cover (4) has a downwardly extending upper cover limiting rib (7) at the bottom. A barb (71) is provided at the end of the upper cover limiting rib (7). The thickness of the upper cover limiting rib (7) is the same as the width of the locking section (251). The position of the upper cover limiting rib (7) corresponds to the position of the inner cover limiting through groove (25). When the upper cover (4) rotates, the upper cover limiting rib (7) slides in the inner cover limiting through groove (25), and when the upper cover limiting rib (4) rotates, the upper cover limiting rib (7) slides in the inner cover limiting through groove (25). When the positioning rib (7) is located in the locking section (251), the barb (71) hooks the lower end face of the inner cover limiting groove (25) to prevent the upper cover (4) from flipping up relative to the lower cover (5). When the upper cover limiting rib (7) is located in the unlocking section (253), the upper cover (4) can flip up relative to the lower cover (5). The outer side of the upper cover (4) is also provided with a concave surface (44) or a protruding buckle that facilitates flipping up. The concave surface (44) or the protruding buckle is set opposite to the hinge position.
2. The cover assembly according to claim 1, characterized in that, On the outer circumferential surface of the lower part of the annular sidewall (22), there are also a number of inner cover anti-theft teeth (26) distributed along the circumferential direction. On the inner circumferential direction of the anti-theft ring (6), there are a number of outer cover anti-theft teeth (10) that cooperate with the inner cover anti-theft teeth (26). Before the annular fracture bridge (11) breaks, when the upper cover limiting rib (7) moves from the locking section (251) to the unlocking section (253), it prevents the anti-theft ring (6) from rotating relative to the inner cover (2).
3. The cover assembly according to claim 1, characterized in that, There are multiple inner cover limiting grooves (25) and upper cover limiting ribs (7), and the multiple inner cover limiting grooves (25) are arranged symmetrically with respect to the center of the inner cover top surface (21), or arranged at different radii of a circle centered on the inner cover top surface (21).
4. The cover assembly according to claim 1, characterized in that, On the annular sidewall (22), there are text or graphic markings (220) indicating "closed" and "open" respectively, where "closed" corresponds to the location of the locking section (251) and "open" corresponds to the location of the unlocking section (253).
5. The cover assembly according to claim 4, characterized in that, An observation window (12) is provided on the side wall of the lower cover (5) for observing some text or graphic markings (220) on the inner cover.
6. The cover assembly according to claim 1, characterized in that, At least one first fixed rib (221) is provided on the outer circumferential surface of the middle part of the annular sidewall (22). A second fixed rib (222) is provided on both sides of the first fixed rib (221) at a certain distance. The first fixed rib (221) and the second fixed rib (222) are located on the same horizontal plane and extend along the circumferential direction, so that the two ends of the first fixed rib (221) and the two adjacent second fixed ribs (222) form a first positioning notch (223) and a second positioning notch (224). The inner wall of the lower cover (5) is provided with a plurality of circumferentially extending lower cover fixing grooves (9), and a lower cover limiting rib (8) is provided between adjacent lower cover fixing grooves (9). The width of the first positioning notch (223) and the second positioning notch (224) is the same as the width of the lower cover limiting rib (8), thereby limiting it. When the lower cover (5) rotates, the lower cover limiting rib (8) can pass over the first fixing rib (221) and switch between the first positioning notch (223) and the second positioning notch (224). The lower cover fixing groove (9) is used to accommodate the first fixing rib (221) and the second fixing rib (222).
7. The cover assembly according to claim 1, characterized in that, A cap plunger (42) is provided at the bottom center of the top surface (41) of the top cover (4), and a cap discharge pipe (24) is provided at the upper center of the top surface (21) of the inner cover. When the top cover (4) is fastened to the inner cover (2), the cap plunger (42) is inserted into the cap discharge pipe (24) to block the cap discharge pipe (24).
8. A tubular container, characterized in that, The device includes a material tube (3) and a cover assembly as described in any one of claims 1-7. The upper part of the material tube (3) is provided with a cylindrical connecting part (31) and a discharge hole (32) is provided at its center. The upper outer periphery of the cylindrical connecting part (31) is provided with an annular flange (33). The lower end of the top surface (21) of the inner cover is provided with a downwardly extending positioning cylinder (27). The inner periphery of the positioning cylinder (27) is provided with annular upper and lower limiting ribs (271). When the inner cover (2) is fastened on the material tube (3), the upper and lower limiting ribs (271) are located below the annular flange (33).
9. The tubular container according to claim 8, characterized in that, A fixing notch (34) is also provided on the annular flange (33), and a rotating limiting rib (272) extending vertically is also provided on the inner periphery of the positioning cylinder (27). When the inner cover (2) is fastened on the material tube (3), the rotating limiting rib (272) passes through the fixing notch (34).
10. The tubular container according to claim 8, characterized in that, The lower end of the top surface (21) of the inner cover is also provided with an inner cover discharge pipe (28) extending downward, and the inner cover discharge pipe (28) and the discharge hole (32) are interference fit.
11. The tubular container according to claim 10, characterized in that, A downwardly extending annular rib (29) is also provided on the top surface (21) of the inner cover. The annular rib (29) is located between the positioning cylinder (27) and the inner cover discharge pipe (28), and its lower end abuts against the upper surface of the discharge hole (32).