Paste packaging container with improved driving structure

The improved driving structure in the paste packaging container addresses space and efficiency issues by using a dual-screw mechanism to extend the vertical stroke of the lifting rod, ensuring precise cream dispensing and maximizing container capacity.

CN119111935APending Publication Date: 2024-12-13SUMIN (SHANGHAI) BIOMATERIALS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411494445.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

Existing paste packaging containers face challenges in accurately controlling the amount of cream dispensed and efficiently utilizing space, leading to potential waste due to difficulty in extracting remaining cream and limited capacity when the container is nearly empty.

Method used

A paste packaging container with an improved driving structure featuring a first screw rod that rotates and moves axially, coupled with a second screw rod to extend the vertical stroke of the lifting rod, allowing for a larger accommodating space while maintaining a compact design.

Benefits of technology

The improved driving structure enables precise control over cream dispensing and maximizes the container's capacity by extending the vertical stroke of the lifting rod, reducing waste and enhancing usability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119111935A_ABST
    Figure CN119111935A_ABST
Patent Text Reader

Abstract

The invention relates to a paste packaging container with an improved driving structure. The paste packaging container comprises a shell which is vertically through; the inner shell vertically penetrates through the outer shell and is located in the outer shell; the movable plate is transversely arranged in the inner shell and can move up and down relative to the inner shell, and the inner shell and the movable plate define a containing space which is provided with an opening in the top and used for containing paste; the driving structure comprises a first screw rod which vertically extends; the driving assembly can drive the first screw rod to axially move while driving the first screw rod to rotate in the circumferential direction; and the first lifting rod is arranged on the first screw in a sleeving mode and is in threaded connection with the first screw, so that the first lifting rod can move in the vertical direction, and the top of the first lifting rod abuts against or is connected with the movable plate. Under the condition that the size of the packaging container is fixed, the containing space can be made to be large, and more paste can be contained.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of cosmetic packaging, and in particular to a paste packaging container with an improved driving structure. Background Art

[0002] Paste cosmetics such as body cream and lipstick are easy to carry and can be used anytime and anywhere. They can be applied to the hands, ears, mouth and other parts of the human body to emit a fresh and pleasant fragrance, beautifying people's lives and images. Cosmetic creams are usually stored in closed bottles or tubes. It is difficult to accurately control the amount of cream squeezed out each time when taking it out. At the same time, when there is less cream in the bottle, it is difficult to take out the remaining cream, which easily causes waste.

[0003] In response to the above problems, the Chinese utility model patent with patent number CN202322282748.2 (publication number CN220616556U) discloses "Fragrance cream packaging that is convenient for post-consumer disassembly and recycling". The inner sleeve includes a cylinder that passes through from top to bottom and a bottom plate that is horizontally arranged in the cylinder. The bottom plate and the cylinder together enclose a storage space. The lifting mechanism includes a lifting platform that is horizontally arranged above the bottom plate and a driving component that drives the lifting platform to move up and down in the inner sleeve.

[0004] The driving assembly includes a lifting rod, a screw rod and a gripping part. The top of the lifting rod passes through a through hole on the bottom plate and is connected to the lifting platform. The screw rod is inserted into the lifting rod and the two are threadedly connected. The gripping part is arranged at the bottom of the screw rod for rotating the screw rod. The screw rod is rotated by the gripping part, so that the lifting rod moves upward, and the lifting platform moves upward accordingly, so as to push the cream upward for users to take it.

[0005] In this patent, the lifting platform is raised and lowered by rotating the screw to squeeze the cream. Due to the rotation of the screw, the cream rises slowly, which makes it easier to control the extrusion amount. When the remaining amount of cream is small, the cream is squeezed to a position near the bottle mouth, which is also convenient for users to take.

[0006] The lifting stroke of the lifting platform (equivalent to the lifting plate below) in this patent depends on the length of the threaded fit of the lifting rod and the screw. This means that in order for the lifting platform to have a larger stroke to take out the cream in the container, the length of the threaded fit of the lifting rod and the screw needs to be longer. As can be seen from the figure, the lifting rod and the screw are located below the accommodating space of the inner sleeve. If the length of the lifting rod and the screw is longer, the height of the perfume cream packaging will be larger, which will be inconvenient to carry; if the size of the package is certain, the space occupied by the drive component is larger, which will result in a smaller accommodating space for the cream, and a smaller amount of cream can be contained. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a paste packaging container with an improved driving structure capable of containing a large amount of paste in view of the current status of the prior art.

[0008] The technical solution adopted by the present invention to solve the above technical problems is: a paste packaging container with an improved driving structure, comprising

[0009] Shell, vertically penetrated;

[0010] An inner shell, vertically penetrating and located in the outer shell;

[0011] A movable plate is disposed transversely in the inner shell and can move up and down relative to the inner shell, wherein the inner shell and the movable plate enclose a receiving space with an open top for receiving the paste;

[0012] A driving structure, located below the moving plate;

[0013] Characterized in that the driving structure includes

[0014] A first screw rod extending vertically;

[0015] A driving assembly, which drives the first screw to rotate circumferentially and can also drive the first screw to move axially;

[0016] The first lifting rod is sleeved on the first screw rod and the two are threadedly connected, so that the first lifting rod can move vertically, and the top of the first lifting rod is against or connected to the moving plate.

[0017] The driving assembly can have a variety of structural forms, such as configuring a push rod motor and a gear motor at the same time, the push rod motor drives the first screw rod to move axially, and the gear motor drives the first screw rod to rotate circumferentially, but such a structure is complex and costly. Preferably, the driving assembly includes a second screw rod and a second lifting rod;

[0018] The second screw extends vertically and can rotate about its axis;

[0019] The second lifting rod is sleeved on the outside of the second screw rod and the two are threadedly connected, so that the inner shell of the second lifting rod can move vertically;

[0020] The first screw has a stopper that can abut against the second lifting rod and be pushed upward by the second lifting rod, and the first screw is also sleeved outside the second screw, and the first screw and the second screw are constrained together in the circumferential direction, and the first lifting rod and the second lifting rod are constrained together in the circumferential direction. When the second screw rotates, the second lifting rod moves vertically, pushing the first screw to move vertically, and the first screw is relatively fixed with the second screw in the circumferential direction, so the second screw drives the first screw to rotate, so that the first screw can rotate circumferentially and move axially at the same time.

[0021] It can be seen from the above that the second lifting rod and the first screw rod are relatively fixed in the vertical direction, but can produce relative displacement in the circumferential direction. In order to realize this scheme, the first screw rod includes a small diameter part and a large diameter part which are arranged and connected in sequence from top to bottom. The inner diameter of the large diameter part is larger than the inner diameter of the small diameter part, so as to form a step between the two. The step surface is the stopper. The second lifting rod is inserted into the large diameter part and abuts against the stopper. The peripheral wall of the large diameter part is provided with a slide groove extending along its circumference. The second lifting rod is provided with a slider sliding along the slide groove, and the slider is vertically constrained in the slide groove.

[0022] In order to facilitate the first lifting rod and the second lifting rod to move only vertically, a limiting cylinder connected to the second lifting rod is provided on its outer periphery, and the limiting cylinder, the first lifting rod, the first screw and the second screw are arranged in sequence from the outside to the inside, and a connecting piece located below the inner shell is provided in the outer shell, and the limiting cylinder is inserted into the connecting piece and fixed relative to the connecting piece in the circumferential direction, and the first lifting rod and the limiting cylinder are relatively fixed in the circumferential direction.

[0023] In order to achieve relative fixation of the limiting cylinder and the connecting piece in the circumferential direction, the structure is simple. A first limiting groove is provided on one of the limiting cylinder and the connecting piece, and a first limiting block is provided on the other of the limiting cylinder and the connecting piece. The first limiting groove extends vertically, and the first limiting block is embedded in the first limiting groove.

[0024] In order to achieve relative fixation of the first lifting rod and the limiting cylinder in the circumferential direction, the structure is simple. A third limiting groove is provided on one of the first lifting rod and the limiting cylinder, and a third limiting block is provided on the other of the first lifting rod and the limiting cylinder. The third limiting groove extends vertically, and the third limiting block is embedded in the third limiting groove.

[0025] In order to achieve relative fixation of the first screw and the second screw in the circumferential direction, the structure is simple. A second limiting groove is provided on one of the first screw and the second screw, and a second limiting block is provided on the other of the first screw and the second screw. The second limiting groove extends vertically, and the second limiting block is embedded in the second limiting groove.

[0026] In order to facilitate driving the second screw to rotate, the driving structure also includes a rotating seat located below the shell, the bottom of the second screw is fixedly connected to the rotating seat, the rotating seat is located below the shell as a base, and the rotating seat can rotate relative to the shell around the axis of the second screw. The setting of the rotating seat is not only convenient for driving the second screw to rotate, but also can serve as the base of the paste packaging container.

[0027] In order to save costs, the movable plate and the first lifting rod are detachably constrained together, and the inner shell is detachably located in the outer shell. In this way, after the paste is used up, the outer shell is removed first, and the movable plate and the inner shell can be removed from the outer shell. After new paste is loaded, it is matched with the first lifting rod, and then the outer shell is installed. The paste packaging container can be reused, saving costs.

[0028] In order to make the first lifting rod and the moving plate detachable, preferably, a connecting tube is connected to the top of the first lifting rod, and a vertically extending annular body is formed at the bottom of the moving plate, and a buckle groove penetrating the bottom edge thereof is provided on the annular body, and the annular body surrounds the outer circumference of the connecting tube, and a buckle block that can be inserted into or removed from the buckle groove is provided on the peripheral wall of the connecting tube. The inner shell and the moving plate are installed downward toward the connecting tube until the buckle block is buckled in the buckle groove, and the installation of the first lifting rod and the moving plate is realized; when it is necessary to detach, the inner shell and the moving plate are moved upward.

[0029] Compared with the prior art, the advantages of the present invention are as follows: the driving assembly of the present invention can drive the first screw to rotate circumferentially and drive the first screw to move axially at the same time. When the first screw rotates circumferentially to lift the first lifting rod, the first screw itself can also move axially, thereby further extending the moving stroke of the first lifting rod. Compared with the solution in which the first screw can only rotate circumferentially, when the length of the first screw is the same, the first lifting rod of the present invention has a longer moving stroke. Specifically, in the paste packaging container of the present application, the length of the first lifting rod and the first screw of the present application is shorter, which not only has sufficient moving stroke, but also occupies less space. In this way, when the size of the packaging container is certain, the accommodating space can be made larger to hold more paste. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0031] Figure 2 for Figure 1 Longitudinal sectional view (movable plate is at the lower limit position);

[0032] Figure 3 for Figure 1 A transverse cross-sectional view of

[0033] Figure 4 for Figure 2 Schematic diagram of the decomposition of

[0034] Figure 5 for Figure 2 Schematic diagram of the drive structure;

[0035] Figure 6 for Figure 2A schematic structural diagram of the first screw in FIG.

[0036] Figure 7 for Figure 2 A schematic structural diagram of the first lifting rod in FIG.

[0037] Figure 8 for Figure 2 A schematic diagram of the structure of the second lifting rod and the limiting cylinder;

[0038] Fig. 9 for Figure 8 A cross-sectional view of

[0039] Fig.10 for Figure 2 A schematic diagram of the structure of the rotating seat and the second screw;

[0040] Fig.11 for Figure 1 Longitudinal sectional view (movable plate near upper limit position);

[0041] Fig.12 This is a schematic structural diagram of the rotating seat and the second screw rod of Example 2 of the present invention. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below with reference to the accompanying drawings.

[0043] like Figures 1 to 11 As shown, the paste packaging container with improved driving structure of this preferred embodiment includes an inner shell 12, a connecting piece 11, a driving structure, a top cover 9 and an outer shell 7.

[0044] The outer shell 7 is vertically penetrated, the inner shell 12 is vertically penetrated and is located in the outer shell 7, the top of the outer shell 7 is provided with a pressing portion 71 that can press against the top of the inner shell 12, and the outer shell 7 is provided with a connecting piece 11 located below the inner shell 1. The top cover 9 can be detachably covered on the top of the outer shell 7, and the top cover 9 and the outer shell 7 can be detachably connected together by the existing clamping protrusion 70 and the clamping groove 91.

[0045] The movable plate 2 is transversely arranged in the inner shell 12. The movable plate 2 can move up and down relative to the inner shell 12. The inner shell 1 and the movable plate 2 enclose a receiving space 21 with an open top for receiving the paste.

[0046] The driving structure is located below the moving plate 2, and is connected to the moving plate 2 for driving the moving plate 2 to move up and down. The driving structure includes a first screw rod 31, a first lifting rod 32, a driving assembly and a rotating seat 33, and the driving assembly includes a second screw rod 34 and a second lifting rod 35.

[0047] The first screw rod 31 extends vertically, the axial direction of the first screw rod 31 is vertical, and the circumferential direction is the direction around its axis. The driving assembly drives the first screw rod 31 to rotate circumferentially and can drive the first screw rod 31 to move axially at the same time, which is specifically achieved in the following manner: the second screw rod 34 extends vertically and can rotate around its axis, the second lifting rod 35 is sleeved on the outside of the second screw rod 34 and the two are threadedly connected, the second lifting rod 35 can only move vertically, the first screw rod 31 has a stopper 311 that can resist the second lifting rod 35 and be pushed upward by the second lifting rod 35, and the first screw rod 31 is also sleeved on the outside of the second screw rod 34, and the first screw rod 31 and the second screw rod 34 are constrained together in the circumferential direction. The threaded connection between the aforementioned screw rod and the lifting rod can refer to the screw nut transmission method.

[0048] Specifically, the first screw 31 includes a small diameter portion 312 and a large diameter portion 313 which are arranged and connected in sequence from top to bottom. The inner diameter of the large diameter portion 313 is larger than the inner diameter of the small diameter portion 312, thereby forming a step therebetween. The step surface is the stopper 311. The second lifting rod 35 is inserted into the large diameter portion 313 and abuts against the stopper 311. A slide groove 314 extending along the circumferential direction is provided on the peripheral wall of the large diameter portion 313. A slider 351 sliding along the slide groove 314 is provided on the second lifting rod 35. In this way, the second lifting rod 35 and the first screw 31 can produce relative displacement in the circumferential direction, and the slider 351 is vertically constrained in the slide groove 314 to realize that the second lifting rod 35 and the first screw 31 are relatively fixed in the vertical direction, thereby driving the first screw 31 to move in the vertical direction.

[0049] The first lifting rod 32 is sleeved on the first screw rod 31 and the two are threadedly connected, so that the first lifting rod 32 can move vertically. The top of the first lifting rod 32 is against or connected to the movable plate 2 to drive the movable plate 2 to move vertically. The first lifting rod 32 and the second lifting rod 35 are constrained together in the circumferential direction.

[0050] The specific working process is as follows: when the second screw 34 rotates, the second lifting rod 35 moves vertically, pushing the first screw 31 to move vertically, and the first screw 31 is relatively fixed with the second screw 34 in the circumferential direction, so the second screw 34 drives the first screw 31 to rotate, thus realizing the simultaneous circumferential rotation and axial movement of the first screw 31. In this way, while the first screw 31 rotates circumferentially to lift and lower the first lifting rod 32, the first screw 31 itself can also move axially, further extending the movement stroke of the first lifting rod 32. Compared with the solution in which the first screw 31 can only rotate circumferentially, when the length of the first screw 31 is the same, the first lifting rod 32 of the present invention has a longer movement stroke, which is specifically applied in the paste packaging container of the present application. When the size of the packaging container is certain, the accommodating space 21 can be made larger to hold more paste.

[0051] The outer periphery of the second lifting rod 35 is provided with a limiting cylinder 352 connected to it. The limiting cylinder 352, the first lifting rod 32, the first screw 31 and the second screw 34 are arranged in sequence from the outside to the inside. The limiting cylinder 352 is inserted into the connecting member 11 and is fixed relative to the connecting member 11 in the circumferential direction so that the second lifting rod 35 can only move vertically. The first lifting rod 32 and the limiting cylinder 352 are relatively fixed in the circumferential direction so that the first lifting rod 32 can only move vertically.

[0052] In order to achieve relative fixation of the limiting cylinder 352 and the connecting member 11 in the circumferential direction, a first limiting groove 41 is provided on one of the limiting cylinder 352 and the connecting member 11, and a first limiting block 42 is provided on the other of the limiting cylinder 352 and the connecting member 11. The first limiting groove 41 extends vertically, and the first limiting block 42 is embedded in the first limiting groove 41. In this embodiment, the first limiting groove 41 is provided on the connecting member 11, and the first limiting block 42 is provided on the limiting cylinder 352, so that the limiting cylinder 352 can only move vertically, and the second lifting rod 35 can also only move up and down.

[0053] A third limiting groove 51 is provided on one of the first lifting rod 32 and the limiting cylinder 352, and a third limiting block 52 is provided on the other of the first lifting rod 32 and the limiting cylinder 352. The third limiting groove 51 extends vertically, and the third limiting block 52 is embedded in the third limiting groove 51. In this embodiment, the third limiting groove 51 is provided on the limiting cylinder 352, and the third limiting block 52 is provided on the first lifting rod 32. Because the limiting cylinder 352 can only move vertically, the first lifting rod 32 can only move vertically, that is, both the first lifting rod 32 and the second lifting rod 35 can only move vertically, and the two are relatively fixed in the circumferential direction.

[0054] One of the first screw rod 31 and the second screw rod 34 is provided with a second limiting groove 61, and the other of the first screw rod 31 and the second screw rod 34 is provided with a second limiting block 62, the second limiting groove 61 extends vertically, and the second limiting block 62 is embedded in the second limiting groove 61. In this embodiment, the second limiting block 62 is provided on the first screw rod 31, and the second limiting groove 61 is provided on the second screw rod 34.

[0055] The rotating seat 33 is located below the housing 7, and the bottom of the second screw 34 is fixedly connected to the rotating seat 33. The rotating seat 33 is located below the housing 7 as a base, and the rotating seat 33 can rotate relative to the housing 7 around the axis of the second screw 34. The setting of the rotating seat 33 is not only convenient for driving the second screw 34 to rotate, but also can serve as the base of the paste packaging container.

[0056] The rotating seat 33 is also provided with a connecting portion 331 connected to the connecting member 11. The outer wall surface of the connecting portion 331 is a first inclined surface 332 inclined outward from top to bottom. A limiting rib 113 is provided on the inner circumferential wall of the connecting member 11. The inner wall surface of the limiting rib 113 is inclined outward from top to bottom to cooperate with the first inclined surface 332, so that the connecting portion 331 can pass over the limiting rib 113 and be placed on the limiting rib 113, and the connecting portion 331 can slide along the limiting rib 113.

[0057] The moving plate 2 and the first lifting rod 32 are detachably restrained together, and the inner shell 12 is detachably located in the outer shell 7 .

[0058] This embodiment enables the first lifting rod 32 and the movable plate 2 to be detached in the following manner: the top of the first lifting rod 32 is connected to a connecting tube 8, the bottom of the movable plate 2 is formed with a vertically extending annular body 22, the annular body 22 is provided with a buckle groove 221 penetrating the bottom edge thereof, the annular body 22 surrounds the outer periphery of the connecting tube 8, and the peripheral wall of the connecting tube 8 is provided with a buckle block 82 that can be inserted into the buckle groove 221 or removed from the buckle groove 221. The inner shell 12 and the movable plate 2 are installed downward toward the connecting tube 8 until the buckle block 82 is buckled in the buckle groove 221, and the installation of the first lifting rod 32 and the movable plate 2 is realized; when it is necessary to detach, the inner shell 12 and the movable plate 2 are moved upward.

[0059] There is no connection between the outer shell 7 and the inner shell 12, and the outer shell 7 can be detached from the inner shell 12. However, the outer shell 7 and the connecting member 11 of this embodiment are detachably connected: a groove 72 is provided on the inner peripheral wall of the outer shell 7, and a block 111 that can be stuck in the groove 72 is provided on the connecting member 11. The outer wall surface of the block 111 is an inclined surface 112 inclined outward from top to bottom so as to be able to enter or escape from the groove 72. The block 111 can be in the form of a buckle foot that can be deflected inwardly and outwardly relative to the connecting member 11, and the block 111 maintains a tendency to deflect outward.

[0060] After the paste is used up, unplug the top cover 9, forcefully remove the outer shell 7, remove the original inner shell 12 and the movable plate 2, place the new inner shell 12 with the paste on the connecting piece 11, buckle the buckle block 82 in the buckle groove 221, and then install the outer shell 7, and it can be reused without scrapping the entire packaging container, thus saving costs.

[0061] like Fig. 9 , 10 As shown, the limiting cylinder 352 and the bottom of the second lifting rod 35 are connected by a connecting plate 353, and an arc-shaped guide groove 3531 is provided on the connecting plate 353. A guide block 333 sliding along the guide groove 3531 is provided on the bottom plate of the rotating seat 33 to limit the rotation trajectory and stroke of the rotating seat 33.

[0062] The inner wall of the inner shell 12 is provided with a limiting rib 121, and the movable plate 2 can be placed on the limiting rib 121. At this time, the movable plate 2 is in the lower limit position. Figure 2 When the movable plate 2 is at the top opening of the inner shell 12, the movable plate 2 is in the upper limit position, as shown Fig.11 The movable plate 2 is shown adjacent to the top opening of the inner shell 12 .

[0063] In this embodiment, the rotating seat 33 includes a bottom plate 334 and a barrel 335 extending upward from the periphery of the bottom plate 334, the connecting portion 331 is arranged at the top of the barrel 335, the second screw 34 is arranged at the central part of the bottom plate 334, and the barrel 335 and the bottom plate 334 are fixedly connected. Because the second screw 34 is the main force-bearing part, if the connection between the barrel 335 and the bottom plate 334 is not firm and detachment occurs, it will affect the working reliability of the second screw 34, so the following structure of embodiment 2 is designed.

[0064] Example 2

[0065] The difference between Example 2 and Example 1 is that the structure of the rotating seat in this example is different from that in Example 1.

[0066] like Fig.12 As shown, in this embodiment, the cylinder 335 and the bottom plate 334 are integrally formed, the connecting portion 331 is provided on the mounting member 336 , and the mounting member 336 is mounted on the cylinder 335 .

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A paste packaging container with an improved driving structure, comprising: The housing (7) is vertically penetrated; An inner shell (12) vertically penetrates and is located in the outer shell (7); A movable plate (2) is disposed transversely in the inner shell (12) and is movable up and down relative to the inner shell (12); the inner shell (12) and the movable plate (2) enclose a receiving space (21) with an open top for receiving the paste; A driving structure, located below the moving plate (2); It is characterized in that The driving structure includes A first screw (31) extending vertically; A driving assembly, which drives the first screw rod (31) to rotate circumferentially and can also drive the first screw rod (31) to move axially; The first lifting rod (32) is sleeved on the first screw rod (31) and the two are threadedly connected, so that the first lifting rod (32) can move in the vertical direction, and the top of the first lifting rod (32) is against or connected to the movable plate (2).

2. The paste packaging container according to claim 1, Features: The driving assembly comprises a second screw rod (34) and a second lifting rod (35); The second screw (34) extends vertically and can rotate around its axis; The second lifting rod (35) is sleeved on the outside of the second screw rod (34) and the two are threadedly connected, so that the second lifting rod (35) can move vertically; The first screw rod (31) has a stopper (311) that can abut against the second lifting rod (35) and be pushed upward by the second lifting rod (35), and the first screw rod (31) is also sleeved outside the second screw rod (34), and the first screw rod (31) and the second screw rod (34) are constrained together in the circumferential direction, and the first lifting rod (32) and the second lifting rod (35) are constrained together in the circumferential direction.

3. The paste packaging container according to claim 2, Features: The first screw rod (31) includes a small diameter portion (312) and a large diameter portion (313) which are arranged in sequence from top to bottom and connected to each other. The inner diameter of the large diameter portion (313) is larger than the inner diameter of the small diameter portion (312) so as to form a step between the two. The step surface is the stopper (311). The second lifting rod (35) is inserted into the large diameter portion (313) and abuts against the stopper (311). The peripheral wall of the large diameter portion (313) is provided with a slide groove (314) extending along its circumference. The second lifting rod (35) is provided with a slider (351) sliding along the slide groove (314), and the slider (351) is vertically constrained in the slide groove (314).

4. The paste packaging container according to claim 2, Features: A limiting cylinder (352) connected to the second lifting rod (35) is provided on its outer periphery; the limiting cylinder (352), the first lifting rod (32), the first screw rod (31) and the second screw rod (34) are arranged in sequence from the outside to the inside; a connecting piece (11) located below the inner shell (12) is provided in the outer shell (7); the limiting cylinder (352) is inserted into the connecting piece (11) and is fixed relative to the connecting piece (11) in the circumferential direction; and the first lifting rod (32) and the limiting cylinder (352) are relatively fixed in the circumferential direction.

5. The paste packaging container according to claim 4, Features: One of the limiting cylinder (352) and the connecting member (11) is provided with a first limiting groove (41), and the other of the limiting cylinder (352) and the connecting member (11) is provided with a first limiting block (42), the first limiting groove (41) extends vertically, and the first limiting block (42) is embedded in the first limiting groove (41).

6. The paste packaging container according to claim 4, Features: A third limiting groove (51) is provided on one of the first lifting rod (32) and the limiting cylinder (352), and a third limiting block (52) is provided on the other of the first lifting rod (32) and the limiting cylinder (352). The third limiting groove (51) extends vertically, and the third limiting block (52) is embedded in the third limiting groove (51).

7. The paste packaging container according to claim 2, Features: One of the first screw rod (31) and the second screw rod (34) is provided with a second limiting groove (61), the other of the first screw rod (31) and the second screw rod (34) is provided with a second limiting block (62), the second limiting groove (61) extends vertically, and the second limiting block (62) is embedded in the second limiting groove (61).

8. The paste packaging container according to any one of claims 2 to 7, Features: The driving structure further comprises a rotating seat (33) located below the outer shell (7); the bottom of the second screw rod (34) is fixedly connected to the rotating seat (33); the rotating seat (33) is located below the outer shell (7) as a base; and the rotating seat (33) can rotate relative to the outer shell (7) around the axis of the second screw rod (34).

9. The paste packaging container according to any one of claims 2 to 7, Features: The movable plate (2) and the first lifting rod (32) are detachably restrained together, and the inner shell (12) is detachably located in the outer shell (7).

10. The paste packaging container according to claim 9, Features: The top of the first lifting rod (32) is connected to a connecting tube (8), and the bottom of the movable plate (2) is formed with a vertically extending annular body (22), and the annular body (22) is provided with a buckle groove (221) passing through its bottom edge, and the annular body (22) surrounds the outer periphery of the connecting tube (8), and the peripheral wall of the connecting tube (8) is provided with a buckle block (82) that can be inserted into the buckle groove (221) or removed from the buckle groove (221).