A push-out discharge type double-cabin secondary throwing pipe and a use method thereof

Abstract

The application discloses a push-out discharging type double-cabin secondary throwing pipe and a use method. The pipe comprises a first cabin pipe assembly and a second cabin pipe assembly. The first cabin pipe assembly comprises a first cabin pipe, an inner plug and a push rod. The first cabin pipe is used for containing a first cosmetic. The inner plug is arranged in the upper end of the first cabin pipe. The inner plug is provided with a sealing diaphragm. The push rod is inserted into the first cabin pipe and can push from bottom to top. The second cabin pipe assembly comprises a second cabin pipe and a cabin pipe cover. The second cabin pipe is provided with an inner pipe body. The cabin pipe cover is detachably arranged on the upper end of the second cabin pipe. The inner pipe body is used for containing a second cosmetic. The lower end of the inner pipe body is inserted into the inner plug. The lower end of the inner pipe body is provided with a puncture part used for puncturing the sealing diaphragm. The outer pipe body is connected to the outer side of the inner pipe body. The outer pipe body is sleeved on the outer side of the upper end of the first cabin pipe. The lower end of the outer pipe body is connected with a positioning ring which is easy to tear off. The upper end of the push rod is further connected with a secondary push rod. The application is convenient to use, can seal the discharging port for multiple times, can push the cosmetic solution with high viscosity and reduce the residue.

Description

Technical Field

[0001] This invention relates to the field of cosmetics technology, and in particular to a push-out type dual-chamber secondary discharge tube and its usage method. Background Technology

[0002] "Single-use" refers to disposable packaging, typically preservative-free single-use cosmetics. In current technology, single-use cosmetics are usually aseptically filled using blow-fill-seal (BFS) technology, employing medical-grade packaging materials such as low-density polyethylene, and requiring no added preservatives. However, current single-use cosmetics often involve pre-mixing different cosmetic ingredients and packaging them together in a single-use tube. This pre-mixing can lead to the deactivation of active substances, significantly reducing the skin-repairing effect of the single-use product.

[0003] With technological advancements, dual-compartment jettisoning systems capable of compartmentalized storage have gradually emerged. See Chinese patent document CN224320365U, which discloses a dual-compartment single-use container, including a first compartment and a second compartment. The first compartment has an insertion end at one end and a first cavity within it. An outlet is located at the insertion end, communicating with the first cavity. A sealing element is provided at the outlet to seal the first cavity. The second compartment has a second cavity within it, and an insertion port matching the insertion end of the first compartment is located at one end. A piercing element is located within the second cavity, allowing the first compartment to move towards it. The piercing element pierces the sealing element, connecting the first and second cavities. A separation section is located at the end of the second compartment away from the insertion port, containing a separation chamber. A separation port is located on the separation section, communicating with the second cavity through the separation port. A notch is provided between the separation section and the second compartment. The separation section separates the two materials when they need to be poured out after mixing, allowing the material in the second compartment to be poured out through the separation port.

[0004] However, the dual-compartment single-use cosmetic disclosed in Chinese patent document CN224320365U has the following defects: (1) Inconvenience in using cosmetic materials: When consumers use cosmetics, they need to separate the separation part from the second compartment before pouring out the cosmetic materials. It is difficult to control the amount of material poured out, and it is easy to pour out too much or too little. Furthermore, when consumers release the dual-compartment single-use cosmetic and place it on the table, the cosmetic may spill out naturally, resulting in the problem of scattered cosmetic materials; (2) The separation part cannot reseal the second compartment: After the separation part and the second compartment are separated by the groove, the separation part cannot reseal the outlet of the second compartment; (3) It is difficult to pour out cosmetic solutions with high viscosity directly or in a short time; (4) After the cosmetic materials are poured out, there are often still a lot of cosmetic materials remaining in the first and second compartments. The higher the viscosity of the cosmetic solution, the more cosmetic materials remain in the first and second compartments, resulting in waste of cosmetic materials. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a push-discharge type dual-chamber secondary throwing tube that is easy to use, can seal the outlet multiple times, can push highly viscous cosmetic solutions, and can significantly reduce cosmetic residues. At the same time, the present invention also provides a method for using the aforementioned push-discharge type dual-chamber secondary throwing tube.

[0006] To solve the above-mentioned technical problems, the present invention provides a push-out type dual-chamber secondary discharge tube, including a first chamber tube assembly and a second chamber tube assembly; the first chamber tube assembly includes a first chamber tube, an inner plug, and a push rod. The first chamber tube is used to contain a first cosmetic product. The inner plug is inserted into the upper end of the first chamber tube and is provided with a sealing diaphragm. The upper end of the push rod is inserted into the first chamber tube from the lower end and can be pushed from bottom to top; the second chamber tube assembly includes a second chamber tube and a chamber tube cover. The second chamber tube is provided with an inner tube body. The chamber tube cover is detachably placed on the upper end of the second chamber tube and can seal the upper end of the inner tube body when closed. The inner tube body is used to contain a second cosmetic product. The lower end of the inner tube body is inserted into the inner plug. The device includes a piercing part for piercing the sealing diaphragm. An outer tube is connected to the inner tube and is fitted over the upper end of the first compartment tube. The lower end of the outer tube is connected to an easily removable positioning ring, which abuts against and positions itself against the first compartment tube. When the positioning ring is removed and the second compartment tube assembly is pressed down, the outer tube can slide downwards outside the upper end of the first compartment tube. The piercing part of the inner tube can pierce the sealing diaphragm of the inner plug, allowing the second cosmetic inside the inner tube to fall into the first compartment tube and mix with the first cosmetic to form a cosmetic mixture. The upper end of the push rod is also connected to an upwardly extending auxiliary push rod, which is adapted to the shape of the inner tube. When the push rod is pushed from bottom to top, the auxiliary push rod can be inserted into the inner tube and pushed upwards.

[0007] In a preferred embodiment of the present invention, the first cosmetic is a cosmetic liquid and the second cosmetic is a cosmetic powder.

[0008] In a preferred embodiment of the present invention, the upper end of the push rod is integrally connected to an upwardly extending skirt piston, which slides in contact with the inner wall of the first chamber tube; an annular slot is provided between the skirt piston and the lower end of the auxiliary push rod, so that when the push rod is pushed upward to the end position, the lower end of the inner tube can be inserted into the annular slot. A sealing ring is integrally connected to the outer wall of the upper end of the push rod, which is located below the skirt piston and slides in contact with the inner wall of the first chamber tube; the push rod is a cylindrical push rod, the auxiliary push rod is a cylindrical auxiliary push rod, and both the push rod and the auxiliary push rod have central holes; a push rod cap is installed at the lower end of the push rod.

[0009] In a preferred embodiment of the present invention, the inner plug includes an inner plug body, which is cylindrical in shape. An annular flange is integrally connected to the upper end of the inner plug body, and the annular flange abuts against the upper end of the first chamber tube. An inner plug retaining ring is integrally connected to the outer side of the inner plug body, and an annular retaining groove is provided on the inner wall of the upper end of the first chamber tube, into which the inner plug retaining ring is engaged. An inner plug cavity is provided within the inner plug body, and the lower end of the inner tube can move downwards through the inner plug cavity. The sealing diaphragm is integrally connected to the lower end of the inner plug body.

[0010] In a preferred embodiment of the present invention, the upper end of the outer tube is integrally connected to the outer wall of the inner tube, and an annular receiving cavity is provided between the outer tube and the inner tube, with the upper end of the first compartment tube housed within the annular receiving cavity. The lower inner wall of the outer tube is integrally connected with a first positioning ring and a second positioning ring spaced apart, the first positioning ring being located above the second positioning ring. The upper outer wall of the first compartment tube is integrally connected with a third positioning ring and a fourth positioning ring spaced apart, the third positioning ring being located above the fourth positioning ring. When the positioning rings abut against the first compartment tube for positioning, the first and third positioning rings are engaged with each other, while the second and fourth positioning rings are not in contact. When the positioning rings are torn off and the second compartment tube assembly is pressed down to the end position, the first and third positioning rings disengage, and the second and fourth positioning rings engage with each other.

[0011] In a preferred embodiment of the present invention, the upper end of the second compartment tube is provided with a connecting cylinder, the connecting cylinder is provided with an external thread, the compartment tube cover is provided with an internal thread, and the compartment tube cover and the connecting cylinder are screwed together by the external thread and the internal thread; the upper inner wall of the compartment tube cover is provided with a sealing ring, the sealing ring is inserted downward into the upper end of the inner tube body and seals the inner tube body.

[0012] This invention provides a method for using the aforementioned push-out type dual-chamber secondary discharge pipe, comprising the following steps: S1. Tear off the positioning ring at the lower end of the outer tube of the second compartment; S2. Press the second chamber tube assembly down to the end position, and the piercing part of the inner tube body pierces the sealing diaphragm of the inner plug downward; S3. The second cosmetic inside the inner tube of the second compartment falls into the first compartment, and the second cosmetic and the first cosmetic are shaken and mixed to form a cosmetic mixture; S4. Open the chamber cover, push the push rod to let the cosmetic mixture enter the inner tube of the second chamber from the first chamber, and then push it out from the upper end of the inner tube of the second chamber.

[0013] The beneficial effects of the present invention are: (1) Convenient to use: On the one hand, it is convenient to mix two cosmetics. Consumers only need to tear off the positioning ring and press down the second chamber tube assembly to the end position. The piercing part of the inner tube body will pierce the sealing film of the inner plug, so that the second cosmetic falls into the first chamber tube. At this time, the second cosmetic and the first cosmetic can be shaken and mixed to form a cosmetic mixture. On the other hand, it is convenient to use the cosmetic mixture. Consumers only need to open the chamber tube cover and push the push rod to push the cosmetic mixture from the upper end of the inner tube body of the second chamber tube. The push rod is easy to control. The amount of cosmetic mixture needed can be pushed out, avoiding the situation of pushing too much or too little cosmetic mixture. In addition, when the consumer releases the double chamber secondary disposal tube with both hands and places the double chamber secondary disposal tube on the table, the cosmetic mixture will not flow out naturally, avoiding the problem of cosmetic mixture scattering. (2) It can seal the outlet multiple times: Although the secondary disposal is a disposable cosmetic, during the use of the secondary disposal, it is often This invention can be used intermittently multiple times a day. Because the cap of the first chamber can be detachably placed on the upper end of the second chamber and can seal the upper end of the inner tube when closed, the cap can be tightened again after each push of the cosmetic mixture, thereby achieving the technical purpose of resealing the outlet. (3) Because this invention adopts the method of pushing out the material, when the push rod is pushed, the cosmetic mixture in the first chamber will enter the inner tube of the second chamber and then exit from the upper end of the inner tube of the second chamber. Therefore, no matter how viscous the cosmetic mixture is, it can be pushed out, thereby achieving the technical purpose of pushing out a viscous cosmetic solution. (4) Also, because this invention adopts the method of pushing out the material, when the push rod is pushed, the cosmetic mixture in the first chamber will enter the inner tube of the second chamber and then exit from the upper end of the inner tube of the second chamber. Therefore, the cosmetic mixture is not easy to stick to the inner wall of the first or second chamber, which can greatly reduce cosmetic residue and achieve the technical purpose of avoiding cosmetic waste. Attached Figure Description

[0014] Figure 1 This is one of the overall structural diagrams of the initial state of the dual-chamber secondary ejection system.

[0015] Figure 2 This is the second overall structural diagram of the initial state of the dual-chamber secondary ejection system.

[0016] Figure 3 This is a longitudinal sectional view of the initial state of the dual-chamber secondary ejection system.

[0017] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0018] Figure 5 This is a diagram showing the distributed structure of the dual-chamber secondary ejection system.

[0019] Figure 6 This is a structural diagram of the dual-chamber secondary ejection tube in the pressing and puncturing state.

[0020] Figure 7 This is a longitudinal sectional view of the dual-chamber secondary ejection tube in a pressed and punctured state.

[0021] Figure 8 for Figure 7 A magnified view of part B in the middle section.

[0022] Figure 9 This is an overall structural diagram of the dual-chamber secondary ejection system in the state where the push rod has been pushed to the end point.

[0023] Figure 10 This is a longitudinal sectional view of the dual-chamber secondary ejection system in the state where the push rod has been pushed to the end point. Detailed Implementation

[0024] The structural and working principles of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-10As shown, the present invention provides a push-discharge type dual-chamber secondary discharge tube, including a first chamber tube assembly 100 and a second chamber tube assembly 200; the first chamber tube assembly 100 includes a first chamber tube 1, an inner plug 2, and a push rod 3. The first chamber tube 1 is used to contain a first cosmetic product. In this embodiment, the first cosmetic product is a cosmetic liquid. The inner plug 2 is inserted into the upper end of the first chamber tube 1. The inner plug 2 is provided with a sealing diaphragm 21. In this embodiment, the material of the inner plug and its sealing diaphragm is PE material. The upper end of the push rod 3 is inserted into the first chamber tube 1 from the lower end and can be pushed from bottom to top; the second chamber tube assembly 200 includes a second chamber tube 4 and a chamber tube cover 5. The second chamber tube 4 is provided with an inner tube body 41. The chamber tube cover 5 is detachably placed on the upper end of the second chamber tube 4 and can seal the upper end of the inner tube body 41 when closed. The inner tube body 41 is used to contain a second cosmetic product. In this embodiment, the second cosmetic product is a cosmetic powder. The lower end of the inner tube body 41 is inserted into the inner plug 2. The inner tube 41 has a piercing part 411 at its lower end for piercing the sealing diaphragm 21. An outer tube 42 is connected to the inner tube 41 and is fitted over the upper end of the first chamber tube 1. A easily removable positioning ring 421 is connected to the lower end of the outer tube 42. The positioning ring 421 abuts against and positions itself against the first chamber tube 1. When the positioning ring 421 is removed and the second chamber tube assembly 200 is pressed down, the outer tube 42 can slide downwards outside the upper end of the first chamber tube 1. The puncture part 411 of 41 can puncture the sealing membrane 21 of the inner plug 2 downwards, so that the second cosmetic inside the inner tube 41 falls into the first compartment tube 1 and mixes with the first cosmetic to form a cosmetic mixture. In this embodiment, the cosmetic mixture is a cosmetic mixing solution. The upper end of the push rod 3 is also connected to an upwardly extending auxiliary push rod 31. The auxiliary push rod 31 is adapted to the shape of the inner tube 41. When the push rod 3 is pushed from bottom to top, the auxiliary push rod 31 can be inserted into the inner tube 41 and pushed from bottom to top.

[0026] The method of using the push-out type dual-chamber secondary throwing pipe of the present invention includes the following steps: S1. Tear off the positioning ring 421 at the lower end of the outer tube 42 of the second compartment tube 4 to eliminate the abutting positioning effect of the positioning ring; S2. Press the second compartment tube assembly 200 down to the end position, and the piercing part 411 of the inner tube body 41 pierces the sealing diaphragm 21 of the inner plug 2 downward; in step S2, when the second compartment tube assembly 200 moves downward, the outer tube body 42 of the second compartment tube 4 slides downward outside the upper end of the first compartment tube 1; when the second compartment tube assembly 200 moves downward to the end position, the outer tube body 42 of the second compartment tube 4 is engaged and fixed with the outer side of the upper end of the first compartment tube 1; S3. The second cosmetic inside the inner tube 41 of the second compartment 4 falls into the first compartment 1, and the second cosmetic and the first cosmetic are shaken and mixed to form a cosmetic mixture. S4. Open the chamber cover 5, push the push rod 3, and let the cosmetic mixture enter the inner tube 41 of the second chamber 4 from the first chamber 1, and then push it out from the upper end of the inner tube 41 of the second chamber 4 for use.

[0027] This invention is convenient to use: On the one hand, it is convenient to mix two cosmetics. Consumers only need to tear off the positioning ring 421 and press down the second chamber tube assembly 200 to the end position. The piercing part 411 of the inner tube body 41 will pierce the sealing membrane 21 of the inner plug 2, allowing the second cosmetic to fall into the first chamber tube 1. At this time, the second cosmetic and the first cosmetic can be shaken to mix them to form a cosmetic mixture. On the other hand, it is convenient to use the cosmetic mixture. Consumers only need to open the chamber tube cover 5 and push the push rod 3 to push the cosmetic mixture out from the upper end of the inner tube body 41 of the second chamber tube 4. The push rod 3 is easy to control. The amount of cosmetic mixture pushed out is the amount needed, avoiding the situation of pushing too much or too little cosmetic mixture. Furthermore, when the consumer releases both hands from the double chamber tube and places the double chamber tube on the table, the cosmetic mixture will not flow out naturally, avoiding the problem of cosmetic mixture scattering. This invention can seal the outlet multiple times: Although single-use cosmetics are disposable, they are often applied intermittently multiple times a day during use. Since the cap 5 is detachably placed on the upper end of the second cap 4 and can seal the upper end of the inner tube 41 when closed, the cap 5 can be tightened again after each delivery of the cosmetic mixture, thereby achieving the technical purpose of resealing the outlet. Because this invention uses a push-discharge method, when the push rod 3 is pushed, the cosmetic mixture inside the first chamber 1 will enter the inner tube 41 of the second chamber 4, and then exit from the upper end of the inner tube 41 of the second chamber 4. Therefore, regardless of the viscosity of the cosmetic mixture, it can be pushed out, thereby achieving the technical purpose of pushing highly viscous cosmetic solutions. Furthermore, because this invention uses a push-discharge method, when the push rod 3 is pushed, the cosmetic mixture inside the first chamber 1 will enter the inner tube 41 of the second chamber 4, and then exit from the upper end of the inner tube 41 of the second chamber 4. Therefore, the cosmetic mixture is less likely to adhere to the inner wall of the inner tube 41 of the first chamber 1 or the second chamber 4, which can significantly reduce cosmetic residue and achieve the technical purpose of avoiding cosmetic waste.

[0028] like Figure 3 , Figure 5 , Figure 7 and Figure 10As shown, the upper end of the push rod 3 is integrally connected to an upwardly extending skirt piston 32, which slides in contact with the inner wall of the first chamber tube 1; an annular slot 33 is provided between the skirt piston 32 and the lower end of the auxiliary push rod 31, and when the push rod 3 is pushed upward to the end position, the lower end of the inner tube 41 can be inserted into the annular slot 33. The skirt piston of this invention is integrally connected with the push rod, eliminating connection gaps and the risk of loosening. It has strong resistance to eccentric loads and more stable piston posture during reciprocating motion. The skirt piston of this invention can slide and contact the inner wall of the first chamber tube 1, providing good sealing performance and uniform guiding support in the entire circumferential contact, suppressing radial swaying of the push rod, ensuring good linearity of movement, and preventing cosmetic liquid from flowing out of the first chamber tube. This invention provides an annular slot 33 between the skirt piston 32 and the auxiliary push rod 31. When the push rod 3 is pushed upward to the end position, the lower end of the inner tube 41 can just be inserted into the annular slot 33, preventing the lower end of the inner tube 41 from being blocked by the skirt piston and preventing cosmetic residue in the first chamber tube from remaining on the outer periphery of the lower end of the inner tube 41.

[0029] like Figure 3 , Figure 5 , Figure 7 and Figure 10 As shown, a sealing ring 34 is integrally connected to the upper outer wall of the push rod 3. The sealing ring 34 is located below the skirt piston 32 and slides in contact with the inner wall of the first chamber tube 1. The push rod 3 is a cylindrical push rod 3, and the auxiliary push rod 31 is a cylindrical auxiliary push rod 31. Both the push rod 3 and the auxiliary push rod 31 have a central hole 35 inside. A push rod cover 36 is installed at the lower end of the push rod 3. By sliding in contact with the inner wall of the first chamber tube 1 through the sealing ring 34, the sealing effect between the push rod and the first chamber tube can be further improved, preventing cosmetic liquid from flowing out of the first chamber tube.

[0030] like Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 10As shown, the inner plug 2 includes an inner plug body 22, which is cylindrical. An annular flange 23 is integrally connected to the upper end of the inner plug body 22, and the annular flange 23 abuts against the upper end of the first chamber tube 1. An inner plug retaining ring 24 is integrally connected to the outer side of the inner plug body 22. An annular groove 11 is provided on the inner wall of the upper end of the first chamber tube 1, and the inner plug retaining ring 24 is inserted into the annular groove 11. The abutment between the annular flange 23 and the upper end of the first chamber tube 1 provides a top positioning function, and the engagement between the inner plug retaining ring 24 and the annular groove 11 provides a side positioning function. Under this dual positioning function, the inner plug can be prevented from moving up and down within the upper end of the first chamber tube 1, resulting in good stability. An inner plug cavity 25 is provided inside the inner plug body 22, and the lower end of the inner tube body 41 can move downwards through the inner plug cavity 25. The sealing diaphragm 21 is integrally connected to the lower end of the inner plug body 22.

[0031] like Figure 3 , Figure 7 and Figure 10 As shown, the upper end of the outer tube 42 is integrally connected to the outer wall of the inner tube 41, and an annular receiving cavity 43 is provided between the outer tube 42 and the inner tube 41. The upper end of the first compartment tube 1 is accommodated within the annular receiving cavity 43. The integral connection between the outer tube 42 and the inner tube 41 of the present invention eliminates connection gaps and the risk of loosening, has strong resistance to off-center loads, good stability, and can be integrally formed; the annular receiving cavity 43 of the present invention can accommodate the upper end of the first compartment tube 1, and during the process of pressing down the second compartment tube assembly, the upper end of the first compartment tube 1 can move upward within the annular receiving cavity 43.

[0032] like Figure 4 and Figure 10As shown, the lower inner wall of the outer tube 42 is integrally connected with a first positioning ring 422 and a second positioning ring 423 spaced apart. The first positioning ring 422 is located above the second positioning ring 423. The upper outer wall of the first compartment tube 1 is integrally connected with a third positioning ring 12 and a fourth positioning ring 13 spaced apart. The third positioning ring 12 is located above the fourth positioning ring 13. When the positioning ring 421 abuts against the first compartment tube 1 for positioning, the first positioning ring 422 and the third positioning ring 12 are engaged with each other, and the second positioning ring 423 and the fourth positioning ring 13 are not in contact. When the positioning ring 421 is torn off and the second compartment tube assembly 200 is pressed down to the end position, the first positioning ring 422 and the third positioning ring 12 are disengaged, and the second positioning ring 423 and the fourth positioning ring 13 are engaged with each other. This structure has the following advantages: (1) When the double-chamber sub-throwing tube is in the pressing and piercing state, the first positioning ring 422 and the third positioning ring 12 are engaged with each other to prevent the outer tube body 42 of the second chamber tube from being loosened from the upper end of the first chamber tube 1; (2) When the double-chamber sub-throwing tube is in the initial state, the second positioning ring 423 and the fourth positioning ring 13 are engaged with each other to prevent the outer tube body 42 of the second chamber tube from being loosened from the upper end of the first chamber tube 1.

[0033] like Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10 As shown, the upper end of the second compartment tube 4 is provided with a connecting cylinder 44, the connecting cylinder 44 is provided with external threads, and the compartment tube cover 5 is provided with internal threads. The compartment tube cover 5 and the connecting cylinder 44 are screwed together by the external and internal threads. The upper inner wall of the compartment tube cover 5 is provided with a sealing ring 51, which is inserted downward into the upper end of the inner tube body 41 and seals the inner tube body 41. The connecting cylinder 44 and the compartment tube cover 5 of the second compartment tube 4 of the present invention are detachably connected by the cooperation of external and internal threads, and the sealing ring 51 of the compartment tube cover 5 can form a good sealing effect on the upper end of the inner tube body 41.

[0034] The above description is merely a preferred embodiment of the present invention. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A push-out type dual-chamber secondary discharge pipe, characterized in that: Including the first and second tube assemblies; The first compartment assembly includes a first compartment, an inner plug, and a push rod. The first compartment is used to contain a first cosmetic product. The inner plug is inserted into the upper end of the first compartment and is provided with a sealing diaphragm. The upper end of the push rod is inserted into the first compartment from the lower end and can be pushed from bottom to top. The second compartment assembly includes a second compartment and a compartment cover. An inner tube is located inside the second compartment. The compartment cover is detachably placed over the upper end of the second compartment and seals the upper end of the inner tube when closed. The inner tube is used to hold a second cosmetic product. The lower end of the inner tube is inserted into an inner plug. The lower end of the inner tube has a piercing portion for piercing the sealing membrane. An outer tube is connected to the outside of the inner tube. The outer tube is fitted over the upper end of the first compartment. The lower end of the outer tube is connected to an easily removable positioning ring. The positioning ring abuts against and positions itself against the first compartment. When the positioning ring is removed and the second compartment assembly is pressed down, the outer tube can slide downwards outside the upper end of the first compartment. The piercing portion of the inner tube can pierce the sealing membrane of the inner plug, allowing the second cosmetic product inside the inner tube to fall into the first compartment and mix with the first cosmetic product, forming a cosmetic mixture. The upper end of the push rod is also connected to an upwardly extending auxiliary push rod. The auxiliary push rod is adapted to the shape of the inner tube. When the push rod is pushed from bottom to top, the auxiliary push rod can be inserted into the inner tube and pushed from bottom to top.

2. The push-out type dual-chamber secondary throwing pipe according to claim 1, characterized in that: The first cosmetic product is a liquid cosmetic product, and the second cosmetic product is a powder cosmetic product.

3. The push-out type dual-chamber secondary throwing pipe according to claim 1, characterized in that: The upper end of the push rod is integrally connected to an upwardly extending skirt piston, which slides in contact with the inner wall of the first chamber tube. An annular slot is provided between the skirt piston and the lower end of the auxiliary push rod. When the push rod is pushed upward to the end position, the lower end of the inner tube can be inserted into the annular slot.

4. The push-out type dual-chamber secondary throwing pipe according to claim 3, characterized in that: A sealing ring is integrally connected to the upper outer wall of the push rod. The sealing ring is located below the skirt piston and slides in contact with the inner wall of the first chamber tube. The push rod is a cylindrical push rod, and the auxiliary push rod is a cylindrical auxiliary push rod. The push rod and the auxiliary push rod are respectively provided with a central hole. A push rod cover is installed at the lower end of the push rod.

5. The push-out type dual-chamber secondary throwing pipe according to claim 1, characterized in that: The inner plug includes an inner plug body, which is cylindrical in shape. An annular flange is integrally connected to the upper end of the inner plug body, and the annular flange abuts against the upper end of the first compartment tube. An inner plug retaining ring is integrally connected to the outer side of the inner plug body, and an annular retaining groove is provided on the inner wall of the upper end of the first compartment tube. The inner plug retaining ring is inserted into the annular retaining groove.

6. The push-out type dual-chamber secondary throwing pipe according to claim 5, characterized in that: The inner plug body has an inner plug cavity inside, and the lower end of the inner tube can move downward through the inner plug cavity. The sealing diaphragm is integrally connected to the lower end of the inner plug body.

7. The push-out type dual-chamber secondary throwing pipe according to claim 1, characterized in that: The upper end of the outer tube is integrally connected to the outer wall of the inner tube, and there is an annular cavity between the outer tube and the inner tube, with the upper end of the first compartment tube housed within the annular cavity.

8. The push-out type dual-chamber secondary throwing pipe according to claim 7, characterized in that: The lower inner wall of the outer tube is integrally connected with a first positioning ring and a second positioning ring spaced apart, with the first positioning ring located above the second positioning ring. The upper outer wall of the first compartment tube is integrally connected with a third positioning ring and a fourth positioning ring spaced apart, with the third positioning ring located above the fourth positioning ring. When the positioning rings abut against the first compartment tube for positioning, the first and third positioning rings are engaged with each other, while the second and fourth positioning rings are not in contact. When the positioning rings are torn off and the second compartment tube assembly is pressed down to the end position, the first and third positioning rings disengage, and the second and fourth positioning rings engage with each other.

9. The push-out type dual-chamber secondary throwing pipe according to claim 1, characterized in that: The upper end of the second compartment tube is provided with a connecting cylinder, the connecting cylinder is provided with external threads, the compartment tube cover is provided with internal threads, and the compartment tube cover and the connecting cylinder are screwed together by the external threads and the internal threads; the upper inner wall of the compartment tube cover is provided with a sealing ring, the sealing ring is inserted downward into the upper end of the inner tube body and seals the inner tube body.

10. The method of using the push-out type dual-chamber secondary throwing pipe according to any one of claims 1-9, characterized in that, The methods and steps include the following: S1. Tear off the positioning ring at the lower end of the outer tube of the second compartment; S2. Press the second chamber tube assembly down to the end position, and the piercing part of the inner tube body pierces the sealing diaphragm of the inner plug downward; S3. The second cosmetic inside the inner tube of the second compartment falls into the first compartment, and the second cosmetic and the first cosmetic are shaken and mixed to form a cosmetic mixture; S4. Open the chamber cover, push the push rod to let the cosmetic mixture enter the inner tube of the second chamber from the first chamber, and then push it out from the upper end of the inner tube of the second chamber.

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