Airtight powder box

By adopting a combined structure of the rotating shaft and the opening and closing lid movable cavity in the airtight powder box, combined with the outer ring and internal rotation structure, the problems of cumbersome operation and poor stability in the prior art are solved, and a higher firm lid closure is achieved Sex and airtightness improve user experience.

CN119302508APending Publication Date: 2025-01-14东莞俪宝塑胶制品有限公司
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Patent Information

Application Number
CN202411694790.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

The existing air-tight powder box has complicated operation steps during use, poor stability of the inner cover and outer cover, easy to shake, affecting users' convenient makeup and resulting in poor user experience.

Method used

An air-tight powder box is designed, adopting a combined structure of the rotating shaft and the movable cavity of the opening and closing cover. Through the movement of the rotating shaft between the cover and the opening and opening cover, the stable opening and closing of the box cover, the inner cover and the inner cover are achieved. The tight cover of the box, the outer ring and internal rotation structure improve rotation stability, and the sealing gasket and slot structure enhance airtightness.

Benefits of technology

It improves the firmness and airtightness of the cover, simplifies opening and closing operations, ensures the packaging stability and convenience of the items, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of cosmetic containers, in particular to an airtight powder box which comprises a bottom box, a box cover, a rotating shaft, an inner cover and an inner box, a rotating groove is formed in one side of the bottom box, an adapter block is arranged on the bottom face of one side of the box cover, an opening and closing cover moving cavity is formed in the middle of the adapter block, and the rotating shaft is arranged on the bottom box, penetrates through the rotating groove and penetrates through the opening and closing cover moving cavity. The opening and closing cover movable cavity comprises a covering clamping hole, a through groove and an uncovering clamping hole which are communicated in sequence, the rotating shaft can be connected with the covering clamping hole or the uncovering clamping hole in a clamped mode, the inner diameter of the covering clamping hole is equal to the inner diameter of the uncovering clamping hole, the diameter of the rotating shaft is not larger than the inner diameter of the covering clamping hole, the groove width of the through groove is smaller than the diameter of the rotating shaft, and the adapter block is movably arranged in the rotating groove; when the rotating shaft is clamped in the covering clamping hole, the inner box is covered with the inner cover, the bottom box is covered with the box cover, and the covering face of the box cover is tightly attached to the top end face of the bottom box. Through the cooperation of the opening and closing cover moving cavity and the rotating shaft, the stability of the opening and closing cover is good, and the air tightness in the covering state is good.
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Description

Technical Field

[0001] The invention relates to the technical field of cosmetic containers, in particular to an airtight powder box. Background Art

[0002] A powder box is used to hold powder materials for facial beauty in daily life. Generally, a powder box includes a bottom box, a receiving cavity is provided on the bottom box, an inner cover for sealing the receiving cavity is rotatably connected to the bottom box, and an outer cover is rotatably provided outside the bottom box. The receiving cavity is used to load powder materials. For example: In the existing patents, the Chinese patent document with application number 201620609365.9 discloses a cosmetic powder box, including an outer box, an outer cover that cooperates with the outer box to form a receiving cavity, an inner powder box arranged in the receiving cavity, and an inner cover that cooperates with the inner powder box to form a cavity; the outer box and the inner powder box are respectively provided with mutually cooperating clamping parts; the bottom of the outer box is provided with a through hole. In addition, a Chinese patent document with application number 202322929199.3 discloses an airtight powder box, including an inner liner assembly, wherein the inner liner assembly includes a flip cover plate, a pull ring, a pull block, a sealing ring, two grooves, an inner liner bottom, a mounting groove, a silicone gasket, a sealing ring, a slope, an inner cover and a mounting ring; the upper surface of the sealing ring is fixedly connected to the lower surface of the flip cover plate, the slope is opened at the bottom of the inner side wall of the sealing ring, the pull block is fixedly connected to the inner side wall of the pull ring, the two grooves are symmetrically opened on the outer side wall of the sealing ring, the mounting groove is opened on the upper surface of the inner liner bottom, the lower surface of the mounting ring is fixedly connected to the inner bottom wall of the mounting groove, the inner cover is clamped to the inner side wall of the mounting groove, the lower surface of the silicone gasket is fixedly connected to the upper surface of the mounting ring, the sealing ring is fixedly connected to the upper surface of the mounting ring, and the lower surface of the flip cover plate is attached to the upper surface of the inner liner bottom.

[0003] Although the above-mentioned patent documents have good airtightness through the closing of the inner cover, during use, when the cover needs to be opened, the outer cover needs to be opened first and then the inner cover; when the cover needs to be closed, the inner cover needs to be closed first and then the outer cover; the operation steps during the entire use process are cumbersome, and the inner and outer covers have poor stability after opening, are easy to shake, and even closed or opened accidentally, which is not conducive to users' convenient makeup application and leads to a poor user experience.

[0004] Therefore, the defects are very obvious and a solution is urgently needed. Summary of the invention

[0005] In order to solve the above technical problems, an object of the present invention is to provide an airtight powder box.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts.

[0008] Furthermore, the outer wall of the inner cover and the inner wall of the box cover are arranged to form an outer annular groove, the adapter block is integrally connected with the outer annular ring, the outer annular ring is accommodated in the outer annular groove, and the outer annular ring is rotatably connected to the box cover.

[0009] Furthermore, the inner wall of the inner cover is provided with an inner rotation structure, and the outer wall of the inner box is provided with an outer rotation structure, and the inner rotation structure is used for screwing together with the outer rotation structure.

[0010] Furthermore, the inward rotating structure includes at least two inward rotating blocks arranged in a circular array on the inner wall of the inner cover, and the outward rotating structure includes at least two outward rotating blocks arranged in a circular array on the outer wall of the inner box, and one inward rotating block is screwed together with one outward rotating block.

[0011] Furthermore, a downwardly inclined guide surface is provided on the bottom surface of the external rotation block, and a blocking block is protruding downward from the bottom end of the guide surface, and the blocking block is used to block the internal rotation block; a covering space for the internal rotation block to pass through is formed between two adjacent external rotation blocks, and the internal rotation block rotates between the blocking blocks of the two adjacent external rotation blocks.

[0012] Furthermore, a card slot is concavely provided in the middle of the inner rotation block, and a card protrusion is provided on the outer side wall of the inner box. The card protrusion is located below the guide rotation surface, and a spacing is set between the card protrusion and the corresponding blocking block, and the card slot is used to engage with the card protrusion.

[0013] Furthermore, an inner annular groove and a rotating groove connected to the inner annular groove and the outer annular groove are provided inside the box cover. The inner annular groove and the outer annular groove are coaxial and of equal diameter. An inner annular groove is provided with an inner annular ring. A connecting piece is provided on the top of the outer annular ring. The connecting piece passes through the rotating groove and is connected to the inner annular ring. The connecting piece can rotate along the rotating groove.

[0014] Furthermore, the box cover includes a cover body and a cover plate, the top surface of the cover body is concavely provided with a cavity, the inner annular groove is concavely provided from the bottom wall of the cavity, the cover plate is embedded in the cavity, and the cover plate seals the inner ring in the inner annular groove.

[0015] Furthermore, a sealing gasket is attached to the inner top surface of the inner cover, and the sealing gasket is used to seal the top port of the inner box.

[0016] Furthermore, the adapter block is provided with a mounting hole, a disassembly block is detachably mounted in the mounting hole, and the movable cavity of the opening and closing cover is provided in the disassembly block.

[0017] The beneficial effects of the present invention are as follows: in practical applications, when the airtight powder box is in a closed state, the closed card hole is located above the open card hole, the inner cover closes the inner box to encapsulate the items loaded in the inner box, the box cover closes the bottom box, the closed surface of the box cover is tightly fitted with the top surface of the bottom box, the rotating shaft is clamped in the closed card hole, the closed card hole tightens the rotating shaft, and because the diameter of the rotating shaft is larger than the slot width of the through slot, the rotating shaft will not easily shake up and down, thereby improving the firmness and tightness of the closed state, and making the airtightness of the items loaded in the powder box good. When opening the box cover, the box cover can be pulled upward, and the box cover moves upward relative to the bottom box, so that the rotating shaft is separated from the closed card hole, and then moves along the through slot to the open card hole, and the rotating shaft is clamped in the open card hole. At this time, the box cover is flipped outward, so that the adapter block rotates around the rotating shaft in the rotating slot, so that the box cover opens the bottom box. The invention has good stability of the opening and closing cover and good air tightness in the closed state through the cooperation between the opening and closing cover movable cavity and the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in a closed state.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the box cover, the adapter block, the inner cover and the outer ring of the present invention.

[0021] Figure 4 It is a schematic diagram of the exploded structure of the box cover, the adapter block, the inner cover, the inner ring and the outer ring of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the rotating shaft, the bottom box and the inner box of the present invention.

[0023] Description of reference numerals:

[0024] 1. Bottom box; 2. Box cover; 3. Rotating shaft; 4. Inner cover; 5. Inner box; 6. Rotating groove; 7. Adapter block; 8. Opening and closing cover movable cavity; 9. Cover closing hole; 10. Through groove; 11. Opening and closing cover hole; 12. Outer annular groove; 13. Outer ring; 14. Inner rotating block; 15. Outer rotating block; 16. Rotating guide surface; 17. Stop block; 18. Slot; 19. Boss; 20. Inner annular groove; 21. Rotating groove; 22. Inner ring; 23. Connector; 24. Cover body; 25. Cover plate; 26. Receptacle; 27. Sealing gasket; 28. Mounting hole; 29. ​​Disassembly block; 30. Slot; 31. Insert block. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0026] like Figures 1 to 5 As shown, the present invention provides an airtight powder box, which includes a bottom box 1, a box cover 2, a rotating shaft 3, an inner cover 4 and an inner box 5. The inner box 5 is embedded in the center of the bottom box 1, the inner cover 4 is arranged at the center of the inner wall of the box cover 2, and the inner cover 4 is used to cover the inner box 5. A rotating groove 6 is arranged on one side of the bottom box 1, and a transfer block 7 is arranged on the bottom surface of one side of the box cover 2. An opening and closing cover movable cavity 8 is arranged in the middle of the transfer block 7. The rotating shaft 3 is installed on the bottom box 1 and passes through the rotating groove 6. The rotating shaft 3 passes through the opening and closing cover movable cavity 8. The opening and closing cover movable cavity 8 includes It includes a cover-closing hole 9, a through groove 10 and an open-cover hole 11 which are connected in sequence, the rotating shaft 3 can be engaged with the cover-closing hole 9 or the open-cover hole 11, the inner diameter of the cover-closing hole 9 is equal to the inner diameter of the open-cover hole 11, the diameter of the rotating shaft 3 is not larger than the inner diameter of the cover-closing hole 9, the groove width of the through groove 10 is smaller than the diameter of the rotating shaft 3, and the adapter block 7 is movably arranged in the rotating groove 6; when the rotating shaft 3 is engaged in the cover-closing hole 9, the inner cover 4 covers the inner box 5, the box cover 2 covers the bottom box 1, and the covering surface of the box cover 2 is tightly fitted with the top end surface of the bottom box 1.

[0027] In actual application, when the airtight powder box is in a closed state, the closing card hole 9 is located above the opening card hole 11, the inner cover 4 covers the inner box 5 to seal the items loaded in the inner box 5, the box cover 2 covers the bottom box 1, the closing surface of the box cover 2 is tightly fitted with the top surface of the bottom box 1, the rotating shaft 3 is clamped in the closing card hole 9, and the closing card hole 9 tightens the rotating shaft 3. Since the diameter of the rotating shaft 3 is larger than the slot width of the through slot 10, the rotating shaft 3 will not easily swing up and down, which improves the firmness and tightness of the closing, and makes the airtightness of the items loaded in the powder box good. When opening the box cover 2, the box cover 2 can be pulled upward, and the box cover 2 moves upward relative to the bottom box 1, so that the rotating shaft 3 is separated from the cover-closing clamping hole 9, and then moves along the through groove 10 to the cover-opening clamping hole 11, and the rotating shaft 3 is clamped in the cover-opening clamping hole 11. At this time, the box cover 2 is turned outward, so that the adapter block 7 rotates around the rotating shaft 3 in the rotating groove 6, so that the box cover 2 opens the bottom box 1. The present invention has good stability of the opening and closing cover through the cooperation between the opening and closing cover movable cavity 8 and the rotating shaft 3, and good airtightness in the closed state.

[0028] In this embodiment, the outer wall of the inner cover 4 and the inner wall of the box cover 2 are arranged to form an outer annular groove 12, and the adapter block 7 is integrally connected with an outer annular groove 13, which is accommodated in the outer annular groove 12 and is rotatably connected to the box cover 2; when the rotating shaft 3 is engaged in the cover engagement hole 9, the outer annular groove 13 is tightly fitted with the top surface of the bottom box 1. This structural design enables the box cover 2 to rotate relative to the outer annular groove 13, the adapter block 7 and the bottom box 1 after the box cover 2 covers the bottom box 1, and the box cover 2 will not be opened even if the user rotates the box cover 2 accidentally.

[0029] In this embodiment, the inner wall of the inner cover 4 is provided with an inner rotation structure, and the outer wall of the inner box 5 is provided with an outer rotation structure, and the inner rotation structure is used for the outer rotation structure to be screwed together. After the box cover 2 is closed with the bottom box 1, the box cover 2 is rotated so that the box cover 2 drives the inner cover 4 to rotate, and the inner rotation structure of the rotating inner box 5 is screwed together with the outer rotation structure of the inner box 5 on the bottom box 1, so that the box cover 2 and the bottom box 1 are tightly and firmly closed together, further improving the firmness and airtightness of the closing. When it is necessary to open the box cover 2, the box cover 2 is first turned to make the inner rotation structure rotate away from the outer rotation structure, and then the box cover 2 is pulled upward to make the box cover 2 move upward relative to the bottom box 1, so that the rotating shaft 3 moves from the closing card hole 9 to the opening card hole 11, and then the box cover 2 is turned outward.

[0030] In this embodiment, the inner rotation structure includes at least two inner rotation blocks 14 arranged in a circular array on the inner side wall of the inner cover 4, and the outer rotation structure includes at least two outer rotation blocks 15 arranged in a circular array on the outer side wall of the inner box 5, and one inner rotation block 14 is screwed together with one outer rotation block 15. With this structural design, the structures of the inner rotation structure and the outer rotation structure are simple, and the screwing firmness of the two is good.

[0031] In this embodiment, a downwardly inclined guide surface 16 is provided on the bottom surface of the external rotation block 15, and a blocking block 17 is protruding downward from the bottom end of the guide surface 16. The blocking block 17 is used to block the internal rotation block 14; a covering space for the internal rotation block 14 to pass through is formed between two adjacent external rotation blocks 15, and the internal rotation block 14 rotates between the blocking blocks 17 of the two adjacent external rotation blocks 15. When the box cover 2 needs to be closed with the base box 1, the box cover 2 is flipped downward so that the inner rotating block 14 passes through the closing space, and then the box cover 2 is rotated so that the inner rotating block 14 of the inner cover 4 moves along the guide rotating surface 16 of the outer rotating block 15, so that the inner rotating block 14 and the outer rotating block 15 are gradually screwed together, and under the extrusion of the downwardly inclined guide rotating surface 16, the box cover 2 moves downward relative to the base box 1, so that the rotating shaft 3 moves from the cover opening hole 11 to the through groove 10, and when one end of the inner rotating block 14 conflicts with the blocking block 17 of the guide rotating surface 16, the rotating shaft 3 moves from the through groove 10 to the closing hole 9, and the rotating shaft 3 is clamped in the closing hole 9. At this time, the box cover 2 completely covers the base box 1, and the closing is strong and airtight. When it is necessary to open the box cover 2, the box cover 2 is rotated in the opposite direction so that the inner rotating block 14 rotates away from the outer rotating block 15. When the inner rotating block 14 is located in the covering space and contacts the blocking block 17 of the guide surface 16 of the other outer rotating block 15, the box cover 2 is pulled upward so that the box cover 2 moves upward relative to the bottom box 1, and the rotating shaft 3 moves from the covering card hole 9 through the through groove 10 to the opening card hole 11, and the box cover 2 is flipped outward to complete the opening action.

[0032] In this embodiment, a slot 18 is concavely provided in the middle of the inner rotation block 14, and a protrusion 19 is provided on the outer side wall of the inner box 5. The protrusion 19 is located below the guide surface 16, and the protrusion 19 is spaced apart from the corresponding blocking block 17, and the slot 18 is used to engage with the protrusion 19. When the box cover 2 is rotated into place, one end of the inner rotation block 14 contacts the blocking block 17 of the guide surface 16, and the slot 18 is just engaged with the protrusion 19, so that the box cover 2 is prevented from easily rotating relative to the bottom box 1, thereby improving the stability and reliability of the cover. When the slot 18 is engaged with the protrusion 19, the user feels a sense of frustration, which proves that the cover is in place.

[0033] In this embodiment, the inner ring groove 20 and the rotation groove 21 connected to the inner ring groove 20 and the outer ring groove 12 are provided inside the box cover 2. The inner ring groove 20 and the outer ring groove 12 are coaxial and equal in diameter. The inner ring groove 20 is provided with an inner ring 22. The top of the outer ring 13 is provided with a connecting piece 23. The connecting piece 23 penetrates the rotation groove 21 and is connected to the inner ring 22. The connecting piece 23 can rotate along the rotation groove 21. This structural design prevents the outer ring 13 from being easily separated from the box cover 2, and ensures that the box cover 2 and the outer ring 13 can rotate relatively. The track length of the rotation groove 21 limits the rotation angle of the box cover 2, so that the box cover 2 can only rotate within a preset angle range.

[0034] In this embodiment, the box cover 2 includes a cover body 24 and a cover plate 25. The top surface of the cover body 24 is concavely provided with a cavity 26. The inner circular groove 20 is concavely provided from the bottom wall of the cavity 26. The cover plate 25 is embedded in the cavity 26. The cover plate 25 seals the inner circular ring 22 in the inner circular groove 20. This structural design realizes modular assembly of the box cover 2, is convenient for production and manufacturing, and is convenient for disassembly and assembly of the box cover 2, the inner circular ring 22 and the outer circular ring 13.

[0035] In this embodiment, a sealing gasket 27 is attached to the inner top surface of the inner cover 4, and the sealing gasket 27 is used to seal the top end of the inner box 5. When the box cover 2 covers the bottom box 1 and the inner cover 4 covers the inner box 5, the sealing gasket 27 covers and seals the top end of the inner box 5, further improving the airtightness after covering.

[0036] In this embodiment, the adapter block 7 is provided with a mounting hole 28, in which a disassembly block 29 is detachably mounted, and the opening and closing cover movable cavity 8 is provided in the disassembly block 29. With this structural design, the adapter block 7 and the disassembly block 29 are detachably connected, which is convenient for the production and manufacturing of the adapter block 7 and the disassembly block 29, the processing and forming of the opening and closing cover movable cavity 8, and the disassembly and replacement of the disassembly block 29. When the disassembly block 29 is damaged, only the disassembly block 29 needs to be replaced, thereby reducing the maintenance cost. Of course, the adapter block 7 and the disassembly block 29 can also be set as an integral structure.

[0037] Specifically, a slot 30 is concavely provided on the inner wall of the mounting hole 28, and an insert block 31 is convexly provided on the outer wall of the disassembly block 29, and the insert block 31 is inserted into the slot 30; the number of the slots 30 and the number of the insert blocks 31 are both at least two, and one insert block 31 is correspondingly provided to one slot 30. The insert block 31 and the slot 30 are assembled by concave and convex fitting, which has a simple structure and is convenient for disassembly and assembly.

[0038] Specifically, the disassembly block 29 is made of plastic, so that the opening and closing cover movable cavity 8 itself can undergo recoverable elastic deformation, which not only ensures that the rotating shaft 3 moves between the cover closing hole 9, the through groove 10 and the cover opening hole 11, but also ensures that the rotating shaft 3 is clamped in the cover closing hole 9 or the cover opening hole 11.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. An airtight powder box, characterized in that: The invention comprises a bottom box (1), a box cover (2), a rotating shaft (3), an inner cover (4) and an inner box (5), wherein the inner box (5) is embedded in the center of the bottom box (1), the inner cover (4) is arranged at the center of the inner wall of the box cover (2), the inner cover (4) is used to cover the inner box (5), a rotating groove (6) is arranged on one side of the bottom box (1), a transfer block (7) is arranged on the bottom surface of one side of the box cover (2), an opening and closing cover movable cavity (8) is arranged in the middle of the transfer block (7), the rotating shaft (3) is arranged on the bottom box (1) and passes through the rotating groove (6), the rotating shaft (3) passes through the opening and closing cover movable cavity (8), and the opening and closing cover movable cavity (8) comprises a cover connected in sequence The cover is provided with a locking hole (9), a through groove (10) and a cover opening locking hole (11); the rotating shaft (3) can be locked with the cover locking hole (9) or the cover opening locking hole (11); the inner diameter of the cover locking hole (9) is equal to the inner diameter of the cover opening locking hole (11); the diameter of the rotating shaft (3) is not larger than the inner diameter of the cover locking hole (9); the slot width of the through groove (10) is smaller than the diameter of the rotating shaft (3); and the adapter block (7) is movably arranged in the rotating groove (6); when the rotating shaft (3) is locked in the cover locking hole (9), the inner cover (4) is locked with the inner box (5), the box cover (2) is locked with the bottom box (1), and the locking surface of the box cover (2) is tightly fitted with the top surface of the bottom box (1).

2. The airtight powder box according to claim 1, characterized in that: The outer wall of the inner cover (4) and the inner wall of the box cover (2) are arranged to form an outer annular groove (12); the adapter block (7) is integrally connected with an outer annular ring (13); the outer annular ring (13) is accommodated in the outer annular groove (12); and the outer annular ring (13) is rotatably connected to the box cover (2).

3. The airtight powder box according to claim 2, characterized in that: The inner wall of the inner cover (4) is provided with an inner rotation structure, and the outer wall of the inner box (5) is provided with an outer rotation structure, and the inner rotation structure is used for screwing together with the outer rotation structure.

4. The airtight powder box according to claim 3, characterized in that: The inwardly rotating structure comprises at least two inwardly rotating blocks (14) arranged in a circular array on the inner side wall of the inner cover (4), and the outwardly rotating structure comprises at least two outwardly rotating blocks (15) arranged in a circular array on the outer side wall of the inner box (5), and one inwardly rotating block (14) is screwed together with one outwardly rotating block (15).

5. The airtight powder box according to claim 4, characterized in that: The bottom surface of the external rotation block (15) is provided with a downwardly inclined guide surface (16), and a blocking block (17) is protruding downward from the bottom end of the guide surface (16), and the blocking block (17) is used to block the internal rotation block (14); a covering space for the internal rotation block (14) to pass through is formed between two adjacent external rotation blocks (15), and the internal rotation block (14) rotates between the blocking blocks (17) of the two adjacent external rotation blocks (15).

6. The airtight powder box according to claim 5, characterized in that: A clamping groove (18) is concavely provided in the middle of the inner rotation block (14), and a clamping protrusion (19) is provided on the outer side wall of the inner box (5). The clamping protrusion (19) is located below the rotation guide surface (16), and the clamping protrusion (19) is spaced apart from the corresponding blocking block (17). The clamping groove (18) is used for clamping with the clamping protrusion (19).

7. The airtight powder box according to claim 2, characterized in that: The box cover (2) is provided with an inner annular groove (20) and a rotation groove (21) communicating with the inner annular groove (20) and the outer annular groove (12); the inner annular groove (20) and the outer annular groove (12) are coaxial and have equal diameters; an inner annular ring (22) is provided inside the inner annular groove (20); a connecting piece (23) is provided on the top of the outer annular ring (13); the connecting piece (23) penetrates the rotation groove (21) and is connected to the inner annular ring (22); and the connecting piece (23) can rotate along the rotation groove (21).

8. The airtight powder box according to claim 7, characterized in that: The box cover (2) comprises a cover body (24) and a cover plate (25); a cavity (26) is concavely formed on the top surface of the cover body (24); an inner circular groove (20) is concavely formed on the bottom wall of the cavity (26); the cover plate (25) is embedded in the cavity (26); and the cover plate (25) seals the inner circular ring (22) in the inner circular groove (20).

9. The airtight powder box according to claim 1, characterized in that: A sealing gasket (27) is attached to the inner top surface of the inner cover (4), and the sealing gasket (27) is used to seal the top port of the inner box (5).

10. The airtight powder box according to claim 1, characterized in that: The adapter block (7) is provided with a mounting hole (28), a disassembly block (29) is detachably mounted in the mounting hole (28), and the opening and closing cover movable cavity (8) is provided in the disassembly block (29).

Citation Information

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