Cover assembly and tubular container

Abstract

The invention provides a cover assembly which comprises an outer cover and an inner cover, the outer cover comprises an upper cover, a lower cover and an anti-theft ring, the inner cover comprises an inner cover top face, an annular side wall extending downwards along the periphery of the inner cover top face and a skirt edge which is connected with the lower end of the annular side wall and protrudes outwards, and an inner cover limiting through groove is further formed in the inner cover top face. The overall shape of the inner cover limiting through groove is an arc extending in the circumferential direction, the inner cover limiting through groove comprises a locking section, a transition section and an unlocking section, and the width of the unlocking section is larger than that of the locking section; an upper cover limiting rib extending downwards is arranged at the bottom of the top face of the upper cover, a barb is arranged at the tail end of the upper cover limiting rib, when the upper cover rotates, the upper cover limiting rib slides in the inner cover limiting through groove, and when the upper cover limiting rib is located on the locking section, the barb hooks the lower end face of the inner cover limiting through groove to prevent the upper cover from being turned up relative to the lower cover. When the upper cover limiting rib is located on the unlocking section, the upper cover can be turned up relative to the lower cover.

Description

Technical Field

[0001] The present invention relates to the technical field of daily chemical products, and more particularly to a cap assembly and a tubular container using the cap assembly. Background Art

[0002] Existing cosmetic products such as facial cleansers, hand creams, and toothpastes typically use tube packaging with a flip-top lid. The lid and the tube nozzle are often connected by threads, and the liquid outlet of the tube nozzle is sealed with an aluminum foil sticker. Before use, the flip-top lid must be unscrewed, the aluminum foil sticker removed, and then tightened. Finally, the top cover of the flip-top lid is opened, and the tube body of the tube is squeezed. The liquid is then squeezed out of the liquid outlet of the flip-top lid and used. Because the interference fit between the plunger of the top cover of a conventional flip-top lid and the column hole of the bottom cover of the flip-top lid is not particularly tight due to the required opening force, when the tube is placed in a bag or pocket, the flip-top lid is easily opened when external force acts on the tube. The liquid then pushes through the plunger of the top cover of the flip-top lid, causing leakage, resulting in material waste and environmental pollution. Secondly, the conventional material tube and flip cover are connected by threads and have no anti-theft function. Anti-theft is generally achieved by adding an outer package. Consumers need to remove the outer package before use and then peel off the sealing sticker before normal use, which causes material waste and pollutes the environment. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a cover assembly, comprising an outer cover and an inner cover, the outer cover comprising an upper cover, a lower cover, and an anti-theft ring, wherein the upper cover and the lower cover are hinged at one end, the anti-theft ring is arranged below the lower cover, and an annular fracture bridge is formed between the anti-theft ring and the lower cover, the inner cover comprises an inner cover top surface, an annular side wall extending downward along the periphery of the inner cover top surface, and an outwardly protruding skirt connected to the lower end of the annular side wall, an inner cover limiting groove is further provided on the inner cover top surface, the overall shape of the inner cover limiting groove is a circular arc extending along the circumferential direction, the inner cover limiting groove comprises a locking section, a transition section, and an unlocking section, and the width of the unlocking section is greater than the width of the locking section;

[0004] The bottom of the top surface of the upper cover has an upper cover limiting rib extending downward, and a hook is provided at the end of the upper cover limiting rib. The thickness of the upper cover limiting rib is consistent with the width of the locking section, and the position of the upper cover limiting rib corresponds to the position of the inner cover limiting groove. When the upper cover rotates, the upper cover limiting rib slides in the inner cover limiting groove, and when the upper cover limiting rib is located in the locking section, the hook hooks the lower end surface of the inner cover limiting groove to prevent the upper cover from flipping up relative to the lower cover. When the upper cover limiting rib is located in the unlocking section, the upper cover can flip up relative to the lower cover.

[0005] Furthermore, a plurality of inner cover anti-theft teeth distributed along the circumferential direction are protrudingly provided on the outer peripheral surface of the lower part of the annular side wall, and a plurality of outer cover anti-theft teeth cooperating with the inner cover anti-theft teeth are provided on the circumference of the inner wall of the anti-theft ring. Before the annular fracture bridge breaks, the upper cover limiting rib moves from the locking section to the unlocking section, thereby preventing the anti-theft ring from rotating relative to the inner cover.

[0006] Furthermore, there are multiple inner cover limiting grooves and upper cover limiting ribs, and the multiple inner cover limiting grooves are symmetrically arranged relative to the center of the inner cover top surface, or arranged at different radii of a circle centered on the inner cover top surface.

[0007] Furthermore, on the annular side wall, text or graphic marks are provided, indicating "off" and "open" respectively, where "off" corresponds to the position of the locking section and "open" corresponds to the position of the unlocking section.

[0008] Furthermore, an observation window is provided on the side wall of the lower cover for observing some text or graphic marks on the inner cover.

[0009] Furthermore, at least one first fixing rib is provided on the outer circumferential surface of the middle portion of the annular side wall, and second fixing ribs are provided on both sides of the first fixing rib at a certain distance, the first fixing rib and the second fixing rib are located in the same horizontal plane and extend along the circumferential direction, so that first positioning notches and second positioning notches are formed between the two ends of the first fixing rib and the two adjacent second fixing ribs;

[0010] The inner wall of the lower cover is provided with a plurality of lower cover fixing grooves extending along the circumferential direction, and 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 it. When the lower cover rotates, the lower cover limiting rib can cross 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, an upper cover plunger is provided at the bottom center of the top surface of the upper cover, and an upper cover discharge pipe is provided at the upper center of the top surface of the inner cover. When the upper cover is buckled on the inner cover, the upper cover plunger is inserted into the upper cover discharge pipe, thereby blocking the upper cover discharge pipe.

[0012] The present invention also provides a tubular container, comprising a material tube and the above-mentioned cover assembly, wherein a cylindrical connecting portion is provided on the upper part of the material tube, a discharge hole is provided at the center thereof, an annular flange is provided on the upper outer periphery of the cylindrical connecting portion, and a positioning cylinder extending downward is provided at the lower end of the top surface of the inner cover, and an annular upper and lower limit ribs are provided on the inner periphery of the positioning cylinder. When the inner cover is buckled on the material tube, the upper and lower limit ribs are located below the annular flange.

[0013] Furthermore, a fixing notch is provided on the annular flange, and a rotation limiting rib extending up and down is provided on the inner periphery of the positioning cylinder. When the inner cover is buckled on the material tube, the rotation limiting rib passes through the fixing notch.

[0014] Furthermore, an inner cover discharge pipe extending downward is provided at the lower end of the inner cover top surface, and the inner cover discharge pipe and the discharge hole are in interference fit.

[0015] Furthermore, a downwardly extending annular rib is provided on the top surface of the inner cover. The annular rib is provided between the positioning cylinder and the inner cover discharge pipe, and its lower end abuts against the upper end surface of the discharge hole.

[0016] In the present invention, the cooperation between the upper cover limiting rib and the inner cover limiting groove enables the upper cover to be opened with a self-locking function, which can prevent the cover from opening when the material tube is subjected to external force, thereby preventing the material head from flowing out. Secondly, the above-mentioned self-locking function can be achieved by rotating the upper cover or the lower cover, which is simple and labor-saving to operate. A top cover plunger is provided inside the upper cover, which can directly prevent the material in the material tube from flowing out after the upper cover is buckled, eliminating the need to tear off the aluminum foil before using a conventional material tube, making it more convenient for consumers to use. Finally, by designing an annular fracture bridge, it has an anti-theft function, saves outer packaging, reduces the use of materials, and is environmentally friendly. In addition, by providing an observation window and text or graphic markings, users can easily identify the current switch status. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the appearance diagram of the assembled cover assembly and material tube;

[0018] Figure 2 This is the exterior view of the inner cover;

[0019] Figure 3 It is a top view of the inner cover;

[0020] Figure 4 This is the structure diagram of the outer cover Figure 1 ;

[0021] Figure 5 This is the structure diagram of the outer cover Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the cooperation between the anti-theft ring and the inner cover in the initial state;

[0023] Figure 7 It is a schematic diagram of the material tube structure;

[0024] Figure 8 This is the inside view of the inner cover;

[0025] Figure 9 This is a cross-sectional view of the assembled cap assembly and barrel. DETAILED DESCRIPTION

[0026] See Figure 1 , the lid assembly of the present invention includes an outer lid 1 and an inner lid 2. The inner lid 2 is fixedly connected to the material tube 3, and the material tube 3 can contain materials such as facial cleanser, hand cream, toothpaste, etc. The outer lid 1 includes an upper lid 4, a lower lid 5, and an anti-theft ring 6. Among them, one end of the upper lid 4 and the lower lid 5 is hinged, so that the upper lid 4 can be flipped open relative to the lower lid 5. The anti-theft ring 6 is arranged below the lower lid 5, and there is an annular fracture bridge 11 between the anti-theft ring 6 and the lower lid 5. When the lower lid 5 rotates relative to the anti-theft ring 6 to a certain angle, the annular fracture bridge 11 breaks, so that the lower lid 5 and the anti-theft ring 6 are separated.

[0027] See Figure 2-Figure 3 , the inner lid 2 includes an inner lid top surface 21, which is generally circular. An annular side wall 22 extends downward along the periphery of the inner lid top surface 21, and a skirt 23 protruding outward is connected to the lower end of the annular side wall 22.

[0028] Two inner lid limiting through slots 25 symmetrically centered on the inner lid top surface 21 are also provided on the inner lid top surface 21. The overall shape of the inner lid limiting through slots 25 is an arc extending along the circumference. The inner lid limiting through slots 25 include a locking section 251, a transition section 252, and an unlocking section 253. The width (the distance in the radial direction) of the unlocking section 253 is greater than the width of the locking section 251. Preferably, on the annular side wall 22, corresponding to the positions of the locking section 251 and the unlocking section 253, there are text or graphic marks 220 indicating "closed" and "open" respectively. For example, it can be Chinese characters "关 / 开", or English "OFF / ON", or patterns representing "closed" and "open".

[0029] At least one first fixing rib 221 is provided on the outer peripheral surface of the middle part of the annular side wall 22. Second fixing ribs 222 are respectively provided at a certain distance on both sides of the first fixing rib 221. The first fixing rib 221 and the second fixing rib 222 are located on the same horizontal plane and extend along the circumference, so that first positioning gaps 223 and second positioning gaps 224 are formed between the two ends of the first fixing rib 221 and the adjacent second fixing ribs 222. A plurality of inner lid anti-theft teeth 26 distributed along the circumference are also provided on the outer peripheral surface of the lower part of the annular side wall 22.

[0030] See Figure 4-Figure 5, is a schematic diagram of the outer cover structure, in which the inner wall of the anti-theft ring 6 is circumferentially provided with multiple outer cover anti-theft teeth 10. These outer cover anti-theft teeth 10 interact 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 is circumferentially provided with multiple lower cover fixing grooves 9 extending along the circumference. Lower cover limiting ribs 8 are located between adjacent lower cover fixing grooves 9. The widths of the first and second positioning notches 223, 224 are the same as those of the lower cover limiting ribs 8, thereby limiting their position. 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 and second positioning notches 223, 224.

[0031] The bottom of the top surface 41 of the upper cover 4 has two downwardly extending upper cover retaining ribs 7, with barbs 71 at their ends. The two upper cover retaining ribs 7 correspond to the two inner cover retaining slots 25 on the inner cover, allowing the upper cover 4 to slide along the two inner cover retaining slots 25 when it rotates. The thickness of the upper cover retaining ribs 7 is substantially the same as the width of the locking section 251. An observation window 12 may 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 viewed.

[0032] As the optimal embodiment, the inner cover limiting grooves 25 and the upper cover limiting ribs 7 are both two and are symmetrical relative to the center of the inner cover top surface 21. When the upper cover rotates relative to the inner cover, the force is evenly applied, and the rotation is relatively smooth. It will be understood by those skilled in the art that the inner cover limiting grooves 25 and the upper cover limiting ribs 7 can also be one, three, or more. When there are multiple inner cover limiting grooves 25, the inner cover limiting grooves 25 can also be arranged at different radii of a circle centered on the inner cover top surface 21, and do not have to be limited to a centrally symmetrical arrangement.

[0033] The following describes the coordination of the outer cover 1 and the inner cover 2. During assembly, the outer cover 1 is buckled onto the inner cover 2, wherein the upper cover limiting rib 7 passes through the locking section 251, and the barb 71 hooks onto the lower end face of the inner cover limiting groove 25. In this way, the upper cover 4 cannot flip relative to the lower cover 5, preventing the outer cover 1 from opening, thereby 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. In this way, the outer cover 1 cannot be pulled upward relative to the inner cover 2. The lower cover limiting rib 8 is located in the second positioning notch 224, which creates resistance to the rotation of the outer cover 1 relative to the inner cover 2. At the same time, the outer cover anti-theft teeth 10 and the inner cover anti-theft teeth 26 on the inner cover cooperate with each other to create rotation resistance. The observation window 12 also corresponds to the "off" in the text or graphic mark 220.

[0034] When consumers need to use it after purchasing it, they should turn it clockwise (relative to Figure 2Twist the outer cover 1 firmly. Since the outer cover anti-theft teeth 10 of the anti-theft ring 6 and the inner cover anti-theft teeth 26 on the inner cover abut against each other, the anti-theft ring 6 will not rotate, while the upper cover 4 and the lower cover 5 will rotate. At this time, the annular fracture bridge 11 breaks. Figure 6 In the initial state, the upper cover limiting rib 7 is located in the locking section 251. At this time, the upper cover 4, the lower cover 5 and the anti-theft ring 6 will not move freely in the counterclockwise direction, and the outer cover anti-theft teeth 10 and the inner cover anti-theft teeth 26 are against each other. In the absence of force, the upper cover 4, the lower cover 5 and the anti-theft ring 6 will not move freely in the clockwise direction.

[0035] Furthermore, the lower cover retaining rib 8 will elastically deform, disengaging from the second positioning notch 224 and sliding against the outside of the first fixing rib 221 until it reaches the first positioning notch 223. It then elastically recovers and falls into the first positioning notch 223, making a "click" sound indicating that the cover has been fully rotated. At this point, the observation window 12 also rotates to the "open" position indicated by the text or graphic marking 220. Simultaneously with the rotation of the outer cover 1, the upper cover retaining 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, and therefore greater than the thickness of the upper cover retaining rib 7, when the upper cover 4 is flipped over, the barb 71 at the lower end of the upper cover retaining rib 7 is no longer obstructed by the lower end surface of the inner cover retaining slot 25, allowing it to be opened normally. Therefore, for the upper cover 4 to be freely opened, the annular break bridge 11 must be broken. Thus, the rupture of the annular break bridge 11 can be used to determine whether the cover has been used, thereby providing an anti-theft function. After use, the upper cover 4 or lower cover 5 is rotated counterclockwise. At this time, the upper cover limiting rib 7 moves from the unlocking section 253 to the locking section 251. At this time, the barb 71 is again blocked by the lower end surface of the inner cover limiting groove 25, thereby preventing the upper cover 4 from flipping up. At the same time, the lower cover limiting rib 8 elastically deforms, disengaging from the first positioning notch 223, pressing against the outside of the first fixing rib 221 and sliding until it reaches the second positioning notch 224. It then elastically recovers and falls into the second positioning notch 224, making a "click" sound indicating that the rotation is in place.

[0036] See also Figure 7 The upper part of the material tube 3 is provided with a cylindrical connecting part 31, the center of which is provided with a discharge hole 32, and the upper outer periphery of the cylindrical connecting part 31 is provided with an annular flange 33. Furthermore, a fixing notch 34 is also provided on the annular flange 33. Figure 7The lower end of the inner lid top surface 21 is provided with a downwardly extending positioning tube 27 and an inner lid discharge tube 28. The inner periphery of the positioning tube 27 is provided with annular upper and lower limiting ribs 271. Preferably, a rotation limiting rib 272 extending vertically is also provided. When the inner lid 2 is fastened to the feed tube 3, the upper and lower limiting ribs 271 are located below the annular flange 33, thereby preventing the inner lid 2 and feed tube 3 from separating. The rotation limiting rib 272 extends through the fixing notch 34, thereby preventing the inner lid 2 and feed tube 3 from rotating or sliding. Furthermore, the inner lid discharge tube 28 and the feed hole 32 form an interference fit, forming a passage for the feed material.

[0037] See also Figure 9 as well as Figure 5 , a top cover plunger 42 is provided at the bottom center of the top surface 41 of the top cover 4, see Figure 8 as well as Figure 2 The upper center of the inner cover top surface 21 is provided with an upper cover discharge pipe 24. When the upper cover 4 is buckled onto 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, the material pipe 3 is squeezed, 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 of the upper cover discharge pipe 24.

[0038] Further, see Figure 9 A downward extending annular rib 29 is also provided on the top surface 21 of the inner cover. The annular rib 29 is provided between the positioning cylinder 27 and the inner cover discharge pipe 28, and its lower end abuts against the upper end surface of the discharge hole 32, thereby limiting the inner cover.

[0039] In the present invention, the cooperation between the upper cover limiting rib 7 and the inner cover limiting slot 25 provides a self-locking function when the upper cover 4 is opened, preventing the cover from opening when the material tube is subjected to external force, thereby preventing the material from flowing out. Secondly, the self-locking function can be achieved by rotating the upper cover 4 or the lower cover 5, which is simple and labor-saving to operate. A top cover plunger 42 is provided within the upper cover 4. Once the upper cover 4 is closed, it can directly prevent the material from flowing out of the material tube, eliminating the need to tear off the aluminum foil before using conventional material tubes, 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. In addition, the provision of an observation window and text or graphic markings 220 allows users to easily identify the current switch status.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cover assembly, characterized in that: The outer cover (1) comprises an upper cover (4), a lower cover (5), and an anti-theft ring (6), wherein the upper cover (4) and the lower cover (5) are hinged at one end, the anti-theft ring (6) is arranged below the lower cover (5), and a ring-shaped fracture bridge (11) is formed between the upper cover (4) and the lower cover (5). The inner cover (2) comprises an inner cover top surface (21), an annular side wall (22) extending downwardly along the periphery of the inner cover top surface (21), and an outwardly protruding skirt (23) connected to the lower end of the annular side wall (22); an inner cover limiting groove (25) is further provided on the inner cover top surface (21); the inner cover limiting groove (25) has an overall shape of an arc extending along the circumferential direction; the inner cover limiting groove (25) comprises 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 bottom of the top surface (41) of the upper cover (4) is provided with an upper cover limiting rib (7) extending downward, and 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 consistent with the width of the locking section (251), and the position of the upper cover limiting rib (7) corresponds to the position of the inner cover limiting slot (25). When the upper cover (4) rotates, the upper cover limiting rib (7) slides in the inner cover limiting slot (25), and when the upper cover limiting rib (7) is located in the locking section (251), the barb (71) hooks the lower end surface of the inner cover limiting slot (25) to prevent the upper cover (4) from turning 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 turn up relative to the lower cover (5).

2. The cover assembly according to claim 1, wherein: A plurality of inner cover anti-theft teeth (26) distributed along the circumferential direction are protrudingly provided on the outer peripheral surface of the lower portion of the annular side wall (22), and a plurality of outer cover anti-theft teeth (10) cooperating with the inner cover anti-theft teeth (26) are provided on the inner wall of the anti-theft ring (6) in the circumferential direction. Before the annular fracture bridge (11) fractures, when the upper cover limiting rib (7) moves from the locking section (251) to the unlocking section (253), the anti-theft ring (6) is prevented from rotating relative to the inner cover (2).

3. The cover assembly according to claim 1, wherein: There are multiple inner cover limiting grooves (25) and upper cover limiting ribs (7), and the multiple inner cover limiting grooves (25) are symmetrically arranged relative to the center of the inner cover top surface (21), or are arranged at different radii of a circle centered on the inner cover top surface (21).

4. The cover assembly according to claim 1, wherein: On the annular side wall (22), text or graphic marks (220) are provided, indicating "off" and "on", respectively, wherein "off" corresponds to the position of the locking section (251), and "on" corresponds to the position of the unlocking section (253).

5. The cover assembly according to claim 4, wherein: An observation window (12) is provided on the side wall of the lower cover (5) for observing part of the text or graphic mark (220) on the inner cover.

6. The cover assembly according to claim 1, wherein: At least one first fixing rib (221) is provided on the outer peripheral surface of the middle portion of the annular side wall (22), and second fixing ribs (222) are respectively provided at a certain distance on both sides of the first fixing rib (221), wherein the first fixing rib (221) and the second fixing rib (222) are located on the same horizontal plane and extend along the circumferential direction, so that a first positioning notch (223) and a second positioning notch (224) are formed between the two ends of the first fixing rib (221) and the two adjacent second fixing ribs (222); The inner wall of the lower cover (5) is provided with a plurality of lower cover fixing grooves (9) extending in the circumferential direction, and a lower cover limiting rib (8) is provided between adjacent lower cover fixing grooves (9). The widths of the first positioning notch (223) and the second positioning notch (224) are the same as the widths of the lower cover limiting rib (8), thereby limiting the position of the lower cover. 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, wherein: An upper cover plunger (42) is provided at the bottom center of the top surface (41) of the upper cover (4), and an upper cover discharge pipe (24) is provided at the upper center of the inner cover top surface (21). When the upper cover (4) is buckled onto 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).

8. A tubular container, characterized in that: The invention comprises a material tube (3) and a cover assembly according to any one of claims 1 to 7, wherein the upper portion of the material tube (3) is provided with a cylindrical connecting portion (31), the center of which is provided with a discharge hole (32), the upper outer periphery of the cylindrical connecting portion (31) is provided with an annular flange (33), the lower end of the inner cover top surface (21) is provided with a downwardly extending positioning tube (27), the inner periphery of the positioning tube (27) is provided with annular upper and lower limiting ribs (271), and when the inner cover (2) is buckled 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 rotation limiting rib (272) extending up and down is also provided on the inner periphery of the positioning cylinder (27). When the inner cover (2) is buckled on the material tube (3), the rotation 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 inner cover top surface (21) 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 provided between the positioning cylinder (27) and the inner cover discharge pipe (28), and its lower end abuts against the upper end surface of the discharge hole (32).

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