Double-bin aluminum film sealing puncture cavity

Abstract

The utility model discloses a double-bin aluminum film sealing piercing cavity which is provided with an outer bottle and an inner bottle, so that two different types of liquid can be stored in an isolated mode, the outer bottle and the inner bottle share a button assembly and a pump core assembly, the pump core assembly can be driven to transmit force to a piercing piece by pressing the button assembly downwards, and the piercing piece can be separated from the outer bottle and the inner bottle. After the sealing layer on the bottom surface of the inner bottle is punctured, contents in the outer bottle and the inner bottle can be extruded out at the same time; in addition, the sealing device is simple in structure, convenient to operate and good in sealing performance.

Description

Technical Field

[0001] The utility model relates to the field of container pumps, in particular to a double-bin aluminum film sealing puncture cavity. Background Art

[0002] With the development of society and concepts, and with the rapid popularization of cosmetics in life, people have higher and higher requirements for the protection of cosmetic contents. In practical applications, it is often necessary to store two different types of liquids in isolation. At present, double-compartment containers for isolating and storing two different types of liquids are double-pump head and double-pump core structures or single-pump head and double-pump core double-compartment containers, which have the disadvantages of cumbersome liquid outlet parts and complex assembly, which also leads to easy leakage and leakage caused by relatively poor sealing performance. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a double-chamber aluminum film sealed puncture cavity, which can isolate and store two different types of liquids, and the outer bottle and the inner bottle share a button assembly and a pump core assembly, which has a simple structure, easy operation and good sealing performance.

[0004] The technical solution of the utility model is:

[0005] A double-chamber aluminum film sealed puncture cavity, characterized in that it includes an outer bottle, a pump core assembly capable of pumping the contents of the outer bottle upwards is clamped at the opening of the outer bottle, and the pump core assembly includes a fixed part fixedly connected to the outer bottle, and a sliding part slidably disposed in the inner cavity of the fixed part;

[0006] The lower end of the fixed part of the pump core assembly extends to the inner cavity of the outer bottle, and the upper end of the sliding part of the pump core assembly is placed above the opening of the outer bottle; the top of the sliding part of the pump core assembly is connected to a button assembly, and the button assembly has a liquid outlet channel communicating with the outside;

[0007] An inner bottle is fixedly connected to the outer peripheral surface of the lower end of the fixed part of the pump core assembly, and a liquid inlet tube is connected to the bottom of the sliding part of the pump core assembly. A piercing member is provided at the bottom of the liquid inlet tube, and the piercing member is located in the inner cavity of the inner bottle. A pierceable sealing layer is provided on the bottom end surface of the inner bottle;

[0008] When the button assembly is pressed downward, the force transmission piercing member of the pump core assembly can be driven to pierce the sealing layer and squeeze out the contents in the inner bottle and the outer bottle.

[0009] Furthermore, a flow trough is provided at the lower end of the liquid guide tube, and the piercing member is provided on the bottom surface of the flow trough.

[0010] Furthermore, the center portion of the top surface of the inner bottle facing the button assembly is concave along its center axis, and a cylindrical inner bottle conduit is integrally formed, the inner bottle conduit has upper and lower openings that pass through, and the lower end of the fixed portion of the pump core assembly (200) is sleeved in the inner bottle conduit; the sliding portion of the pump core assembly is slidably placed in the inner bottle conduit.

[0011] Furthermore, the fixed part of the pump core assembly includes an outer tube, which is sleeved on the opening of the outer bottle, and the lower end of the outer tube is fixedly sleeved in the inner bottle;

[0012] The sliding part of the pump core assembly includes: a push tube and a one-way pump core; the push tube is slidably sleeved in the inner cavity of the outer tube along the vertical direction, a return spring is sleeved on the part of the push tube placed above the opening of the outer bottle, and the top surface of the push tube is connected to the button assembly;

[0013] A one-way pump core is coaxially fixed in the push tube, and the bottom of the one-way pump core is connected to the piercing piece.

[0014] Further, the one-way pump core comprises a conduit, a piston and a one-way transmission valve stem;

[0015] The piston is slidably sleeved on the push tube and is located between the bottom surface of the push tube and the bottom surface of the guide tube;

[0016] The upper end of the one-way transmission valve stem is slidably sleeved in the lower end of the catheter along the vertical direction, and the bottom surface of the one-way transmission valve stem is placed above the top surface of the liquid guide tube.

[0017] Furthermore, the button assembly includes a button cover and a water outlet located in the button cover, the water outlet is provided with a pipeline connected to the outside, and the lower opening of the water outlet is sleeved in the inner cavity of the upper end of the push tube.

[0018] Furthermore, the outer bottle is fixedly connected to a shoulder sleeve, and the shoulder sleeve is provided with an upper shoulder sleeve opening and a lower shoulder sleeve opening which pass through the upper and lower sides. The outer wall of the outer bottle opening is fixedly connected to the lower shoulder sleeve opening, and the button assembly is fixedly connected to the upper shoulder sleeve opening.

[0019] Furthermore, a stepped groove is provided on the outer surface of the shoulder sleeve, the upper cover is sleeved on the stepped groove, and the button assembly is enclosed in the upper cover.

[0020] Furthermore, the surface of the bottom end of the outer bottle is directly opposite to the center plane of the lower opening of the liquid introduction tube to form a concave liquid storage groove, and the lower opening of the liquid introduction tube is an arc-shaped structure with its opening facing the liquid storage groove.

[0021] The beneficial technical effects of the utility model are as follows: the utility model provides a double-chamber aluminum film sealed puncture cavity. First, it has an outer bottle and an inner bottle, which can store two different types of liquids in isolation;

[0022] Secondly, the outer bottle and the inner bottle share a button assembly and a pump core assembly. By pressing the button assembly in the utility model downward, the force transmission piercing member of the pump core assembly can be driven to pierce the sealing layer on the bottom surface of the inner bottle, thereby squeezing out the contents of the outer bottle and the inner bottle at the same time;

[0023] In addition, the utility model has a simple structure, is easy to operate and has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a half-section view of the utility model in a state where the sealing layer is not punctured;

[0025] Figure 2 It is a half-section view of the utility model after puncturing the sealing layer;

[0026] Figure 3 It is a half-section view of the inner bottle of the utility model;

[0027] Figure 4 Schematic diagram of the assembly of the liquid guide tube, the flow trough and the piercing member in the first embodiment;

[0028] Figure 5 It is a half-section view of the button assembly of the utility model;

[0029] Figure 6 It is a half-section view of the pump core assembly of the utility model;

[0030] Figure 7 It is a schematic diagram of a one-way transmission valve stem of the utility model;

[0031] Figure 8 It is a half-section view of the one-way transmission valve stem of the utility model;

[0032] Fig. 9 Schematic diagram of the liquid guide tube and the flow channel piercing member assembly of the second embodiment;

[0033] Fig.10 is a schematic diagram of the liquid guide tube and the flow channel piercing member assembly of the second embodiment from another angle;

[0034] Fig.11 It is a half-section view of the liquid guide tube and flow trough piercing member assembly of the second embodiment.

[0035] in:

[0036] 100-outer bottle, 101-liquid storage groove;

[0037] 200-pump core assembly, 201-outer tube, 202-push tube, 203-conduit, 2031-feeding hole, 2032-limiting plate, 204-piston, 205-reset spring, 206-guide groove, 204-1-outer ring, 204-2-inner ring, 204-3-connecting ring, 2011-pump core connecting edge, 2012-annular gasket, 2021-push tube receiving platform, 207-sealed chamber for pumping;

[0038] 300-button assembly, 301-button cover, 302-vertical connecting pipe, 303-horizontal water outlet pipe;

[0039] 400-inner bottle, 401-inner bottle conduit, 402-sealing layer, 401-1-upper opening of inner bottle, 403-inner bottle receiving platform;

[0040] 500-liquid introduction tube, 501-puncture piece, 502-flow trough;

[0041] 600-one-way transmission valve stem, 601-sliding connecting rod, 602-valve stem cap, 602-1 liquid guide tube accommodating chamber, 603-valve stem push platform;

[0042] 700-shoulder cover, 800-upper cover. DETAILED DESCRIPTION

[0043] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0044] The utility model provides a double-chamber aluminum film sealing puncture cavity, which includes an outer bottle 100 and an inner bottle 400. The outer bottle 100 and the inner bottle 400 share a button assembly 300 and a pump core assembly 200. By pressing the button assembly 300 in the utility model downward, the force transmission puncture component of the pump core assembly 200 can be driven to puncture the sealing layer 402 on the bottom surface of the inner bottle 400, so as to realize the simultaneous extrusion of the contents of the outer bottle 100 and the inner bottle 400.

[0045] Example 1

[0046] like Figure 1-2 As shown, the outer bottle 100 of the first embodiment is a cylindrical cavity with an opening on the top surface. A pump core assembly 200 capable of pumping the contents of the bottle upward is clamped at the opening of the outer bottle 100, and the lower end of the pump core assembly 200 passes through the opening of the outer bottle 100 and extends to the inner cavity of the outer bottle 100.

[0047] like Figure 6As shown, the pump core assembly 200 of this embodiment 1 is the same as the pump core structure in the prior art CN 207046039 U, which includes: a fixed part of the pump core assembly 200, namely the outer tube 201, a sliding part of the pump core assembly 200, namely the push tube 202 and a one-way valve core part, the one-way valve core part includes: a piston 203, a conduit 203, a limit plate 2032, a return spring 205, and a guide groove 206, wherein the piston 204 includes an outer ring 204-1, an inner ring 204-2 and a connecting ring 204-3, and a feed through hole 2031 is provided on the side wall of the conduit 203, and its specific connection relationship is not repeated here.

[0048] In addition, the utility model replaces the valve ball in CN 207046039 U with a one-way transmission valve stem 600 .

[0049] In addition, the outer surface of the upper opening of the outer tube 201 in the pump core assembly 200 of the first embodiment protrudes in a direction away from the central axis thereof to form a pump core connection edge 2011, and the pump core connection edge 2011 is fixedly connected to the top surface of the upper opening of the outer bottle 100, so as to realize the fixing of the pump core assembly 200 in the outer bottle 100. Furthermore, an annular gasket 2012 is also provided at the fixed connection between the pump core connection edge 2011 and the top surface of the upper opening of the outer bottle 100.

[0050] The outer tube 201 is placed in the inner cavity of the outer bottle 100, and the lower end of the outer tube 201 is fixedly connected to an inner bottle, and the length and diameter of the inner bottle are smaller than the length and diameter of the outer bottle. In this embodiment 1, the outer surface of the lower end of the outer tube 201 is provided with an external thread, and is fixedly connected to the inner bottle 400 by a threaded connection.

[0051] like Figure 3 As shown, the bottom end surface of the inner bottle 400 is provided with a puncturable sealing layer 402, and the sealing layer of this embodiment 1 is an aluminum film. The center portion of the top surface of the inner bottle 400 facing the button assembly is concave along its central axis, and a cylindrical inner bottle conduit 401 is integrally formed. The inner bottle conduit 401 is opened from top to bottom, and the length of the inner bottle conduit 401 is less than the length of the inner bottle. Thus, a first content holding chamber is formed in the inner cavity of the outer bottle 100, and a second content holding chamber is formed in the inner cavity of the inner bottle 400.

[0052] In order to facilitate the fixed connection with the lower end of the outer tube 201, the upper opening of the inner bottle guide tube 401 is a funnel-shaped inner bottle upper opening 401-1, and the bottom surface of the funnel-shaped inner bottle upper opening 401-1 is inwardly contracted toward the central axis thereof to form an annular inner bottle receiving platform 403; in addition, a plurality of mutually matching and applicable convex rings and annular grooves are provided on the inner wall of the inner bottle upper opening 401-1 and the outer peripheral wall of the lower end of the outer tube 201. Thus, the outer tube 201 and the inner bottle 400 are fixedly connected by the engagement between the convex ring and the annular groove, and the bottom end surface of the lower opening of the outer tube 201 stops on the upper surface of the inner bottle receiving platform 403. In addition, the outer tube 201 and the inner bottle 400 are fixedly connected by the engagement between the convex ring and the annular groove, which is beneficial to the airtightness between the two and ensures the pulling force between the two.

[0053] The outer wall of a liquid guide tube 500 is closely attached to the inner wall of the inner bottle guide tube 401 and is slidably placed in the inner bottle guide tube 401. The upper end of the liquid guide tube 500 passes through the lower opening of the outer tube 201 and extends into the inner channel of the outer tube 201. The inner wall of the lower opening of the outer tube 201 is closely attached to the outer wall of the liquid guide tube 500. The lower end of the liquid guide tube 500 protrudes from the bottom surface of the inner bottle guide tube 401. A piercing member 501 is also provided at the bottom end of the liquid guide tube 500. The piercing member 501 of this embodiment 1 is an inverted triangle sawtooth. When the utility model is in the initial state, that is, when the sealing layer 402 is not pierced, the piercing member 501 is located above the sealing layer 402 and can slide along the outer tube 201 and the inner bottle guide tube 401 under force.

[0054] Preferably, a flow groove 502 is further provided on the outer peripheral surface of the lower end of the liquid inlet tube 500 extending out of the bottom surface of the inner bottle conduit 401. Figure 4 As shown, the flow trough 502 has a material guide step surface and a material flow outlet, and the material guide step surface faces the material flow outlet. The flow trough 502 surrounds the liquid guide tube 500, and the liquid guide tube 500 is its central support axis. The outer peripheral surface of the flow trough 502 lightly touches the inner wall of the inner bottle 400. Furthermore, a piercing member 501 is also provided at the bottom of the flow trough 502. Preferably, the piercing member 501 can be provided on the bottom surface of the material flow outlet of the flow trough 502. On the one hand, the above-mentioned flow trough 502 is conducive to the discharge of the contents in the inner bottle 400 after the sealing layer 402 of the inner bottle 400 is pierced; on the other hand, it increases the stability of the liquid guide tube 500 in the inner bottle conduit 401.

[0055] like Figure 8As shown, a one-way transmission valve stem 600 includes a sliding connecting rod 601 and a valve stem cap 602 fixed to the lower end of the sliding connecting rod. A liquid introduction tube accommodating chamber 602-1 is provided in the valve stem cap 602, and the opening of the liquid introduction tube accommodating chamber 602-1 faces the bottom surface of the outer bottle 100. The outer surface of the upper end of the liquid introduction tube accommodating chamber 602-1 and the intersection of the sliding connecting rod 601 and the sliding connecting rod 601 are convex toward the central axis to form a valve stem push platform 603. The upper end of the sliding connecting rod 601 passes through the limit plate 2032 and is slidably connected to the conduit 203. When the utility model is in the initial state, the bottom surface of the limit plate 2032 located at the bottom end of the conduit 203 abuts against the upper surface of the valve stem push platform 603, and the top opening of the liquid introduction tube 500 is sleeved in the liquid introduction tube accommodating chamber 602-1 and abuts against the inner wall of the liquid introduction tube accommodating chamber 602-1. At this point, the piston 204 in the cavity of the outer tube 201 abuts against the limiting plate 2032 until the bottom end surface of the lower opening of the outer tube 201 stops on the upper surface of the inner bottle receiving platform 403 to form a sealed cavity 207 for the object to be extracted.

[0056] like Figure 1-2 As shown, a button assembly 300 is clamped on the push tube 202. The button assembly 300 of this embodiment 1 includes a button cover 301 and a water outlet end located in the button cover 301, and the water outlet end is communicated with the outside.

[0057] The open end of the button cover 301 faces the pump core assembly 200, and the water outlet end includes a vertical connecting pipe 302 and a horizontal water outlet pipe 303 perpendicular to the vertical connecting pipe 302 and located at the upper end of the vertical connecting pipe 302. The horizontal water outlet pipe 303 is connected to the outside, and the vertical connecting pipe 302 and the horizontal water outlet pipe 303 form a mirrored "7"-shaped water outlet channel. The vertical connecting pipe 302 is coaxially sleeved on the upper end of the inner wall of the push tube 202, and when the utility model is in the initial state, there is a distance "H" between the bottom end of the button cover 301 facing the pump core assembly 200 and the upper surface of the pump core connection edge 2011, and the distance "H" is the stroke of the button assembly 300 driving the pump core assembly 200 to operate.

[0058] In order to fix the vertical connecting tube 302 on the upper end of the inner wall of the push tube 202, an annular push tube supporting platform 2021 is provided on the upper end of the inner wall of the push tube 202, the bottom end surface of the vertical connecting tube 302 is placed on the upper surface of the push tube supporting platform 2021, and the inner channel of the push tube 202 is coaxially arranged with the inner channel of the vertical connecting tube 302.

[0059] In addition, the outer bottle 100 is fixedly connected to a shoulder sleeve 700, and the shoulder sleeve 700 is provided with an upper shoulder sleeve opening and a lower shoulder sleeve opening that are connected from top to bottom, and the intersection of the lower shoulder sleeve opening and the upper shoulder sleeve opening is inwardly contracted toward the central axis thereof, forming a shoulder sleeve annular surface. The outer wall of the top opening of the outer bottle 100 is sleeved in the lower shoulder sleeve opening, and the button cover 301 is sleeved in the upper shoulder sleeve opening. The shoulder sleeve annular surface is placed on the upper surface of the pump core connecting edge 2011, and the inner wall of the annular surface just abuts against the outer wall of the guide groove 206. Preferably, the outer surface of the shoulder sleeve 700 is provided with a stepped groove, and the upper cover 800 is sleeved on the stepped groove, and the button assembly 300 is enclosed in the upper cover 800, so that when the utility model is not in use, the water outlet end of the button assembly is protected from external pollution.

[0060] Preferably, the upper surface of the bottom end surface of the outer bottle 100 is concave downward facing the lower opening of the liquid guide tube 500 to form a liquid storage groove 101. This design allows the contents to be concentrated in the liquid storage groove 101 when there is less content left in the bottle, so that they can be easily sucked out. Furthermore, the bottom surface of the lower opening of the liquid guide tube 500 is an arc-shaped structure with the opening facing the liquid storage groove 101. This design is more conducive to sucking out the contents of the outer bottle 100.

[0061] The operating principle and operating process of this embodiment 1 are as follows:

[0062] Puncture and exhaust phase:

[0063] Open the upper cover 800, press the button cover 301 downward, the push tube 202 is subjected to a downward force, and synchronously drives the catheter 203 to move downward. The catheter 203 simultaneously pushes the one-way transmission valve stem 600 to move downward, and the liquid introduction tube 500 abutting against the one-way transmission valve stem 600 moves downward synchronously along the inner bottle catheter 401. After the piercing member 501 pierces the sealing layer 402, the liquid introduction tube 500 continues to move into the liquid storage groove 101 under the thrust pressure of the button assembly. At the same time, when the catheter 203 moves downward, when the bottom of the push tube 202 moves to the upper surface of the connecting ring 204-2, the piston 204 is subjected to a downward thrust and synchronously moves downward with the push tube 202. Since the piston 204 and the limiting plate 2032 connected to the bottom end of the catheter 203 move downward at different times, a gap is slowly formed between the two during the downward movement, and the gas inside the pump core assembly 200 is discharged from the gap between the limiting plate 2032 and the piston 204.

[0064] Mixing and extraction stage:

[0065] After the sealing layer 402 is punctured, the content in the inner bottle 400 flows into the outer bottle along the flow groove 502, thereby achieving mixing of the content in the outer bottle and the content in the inner bottle.

[0066] After exhaust and mixing are completed, the button cover 301 is released, and the push tube 202 is driven to move upward by the return spring 205, and the push tube 202 simultaneously drives the guide tube 203 and the limit plate 2032 to move upward. When the limit plate 2032 rises to the lower surface of the connecting ring 204-2, the limit plate 2032 drives the piston 204 to move upward and reset, thereby the limit plate 2032 and the piston 204 are closed; at the same time, as the limit plate 2032 drives The piston 204 continues to move upward, and the volume of the sealed chamber 207 for the material to be extracted increases from small to large, and negative pressure is generated in the chamber. Under the action of the negative pressure, the one-way transmission valve stem 600 slides upward along the catheter 203, thereby creating a gap between the valve stem cap 602 and the top surface of the opening on the drainage tube 500, that is, the one-way transmission valve stem 600 is opened. As a result, the contents in the bottle enter the sealed chamber 207 for the material to be extracted through the gap between the one-way transmission valve stem and the drainage tube under the continuous negative pressure generated by the pump core assembly.

[0067] Discharging stage:

[0068] When the sealed chamber 207 of the object to be extracted is filled with contents, the button cover 301 is pressed, and the push tube 202 drives the conduit 203 to move downward. When the bottom end of the push tube 202 abuts against the connecting ring 204-2, the push tube 202 drives the piston 204 to move downward. At this time, the volume of the sealed chamber 207 of the object to be extracted becomes smaller, and a positive pressure is formed in the chamber. The one-way transmission valve stem 600 is sealed with the liquid guide tube 500 under the action of the positive pressure. The contents in the sealed chamber 207 of the object to be extracted pass through the gap between the piston 204 and the limit plate 2032, through the feed through hole 2031 on the conduit 203, enter the conduit 203, and finally enter the vertical connecting tube 302 and the horizontal connecting tube 303 in the button assembly, and finally flow out from the horizontal connecting tube 303.

[0069] Example 2

[0070] Compared with Example 1, in Example 2, only the shape of the flow trough 5 is different, and the structures, connection relationships, operating processes and operating principles of the remaining components are the same, which will not be repeated here.

[0071] Adjust the structure of the flow trough according to the filling situation and assembly sequence of the inner bottle. Figure 9-11As shown, the flow trough 503 of this embodiment 2 includes a flow trough inner ring 503-1, a flow trough outer ring 503-2 and a flow isolation column 503-3 placed between the flow trough inner ring and the flow trough outer ring. A flow trough gap is formed between the flow isolation column and the flow trough inner ring and the flow trough outer ring. The inner wall of the flow trough inner ring 503-1 is tightly wrapped around the outer wall of the liquid guide tube 500, with the liquid guide tube 500 as the center of gravity support axis; the bottom surface of the flow trough outer ring 503-2 facing the bottom surface of the outer bottle 100 is an oblique ring, and a piercing member 501 is provided at the lowest point of the oblique ring. After the piercing member 501 pierces the sealing layer, the contents above the flow trough in the inner bottle 400 flow along the flow trough gap to the outer bottle, playing a role in guiding the flow direction of the contents.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A double-chamber aluminum film seal puncture cavity, It is characterized in that The invention comprises an outer bottle (100), wherein a pump core assembly (200) capable of pumping the contents of the outer bottle (100) upwards is clamped at the opening of the outer bottle (100), and the pump core assembly (200) comprises a fixing portion fixedly connected to the outer bottle (100), and a sliding portion slidably disposed in an inner cavity of the fixing portion; The lower end of the fixed part of the pump core assembly (200) extends to the inner cavity of the outer bottle (100), and the upper end of the sliding part of the pump core assembly (200) is placed above the opening of the outer bottle (100); the top end of the sliding part of the pump core assembly (200) is connected to a button assembly (300), and the button assembly (300) has a liquid outlet channel communicating with the outside; An inner bottle (400) is fixedly connected to the outer peripheral surface of the lower end of the fixed part of the pump core assembly (200), and a liquid inlet tube (500) is connected to the bottom of the sliding part of the pump core assembly (200). A piercing member (501) is provided at the bottom of the liquid inlet tube (500), and the piercing member (501) is located in the inner cavity of the inner bottle (400). A pierceable sealing layer (402) is provided on the bottom end surface of the inner bottle (400); When the button assembly (300) is pressed downward, the force transmission piercing member (501) of the pump core assembly (200) can be driven to pierce the sealing layer (402) and squeeze out the contents in the inner bottle and the outer bottle.

2. The double-chamber aluminum film sealing puncture cavity according to claim 1, It is characterized in that The lower end of the liquid guide tube (500) is also provided with a flow trough (502), and the piercing member (501) is arranged on the bottom surface of the flow trough (502).

3. The double-chamber aluminum film sealing puncture cavity according to claim 1, Features: The center portion of the top surface of the inner bottle (400) facing the button assembly (300) is concave along its center axis, and is integrally formed with a cylindrical inner bottle conduit (401). The inner bottle conduit (401) has upper and lower openings that pass through, and the lower end of the fixed portion of the pump core assembly (200) is sleeved in the inner bottle conduit (401); the sliding portion of the pump core assembly (200) is slidably placed in the inner bottle conduit (401).

4. The double-chamber aluminum film sealing puncture cavity according to claim 1, It is characterized in that The fixed portion of the pump core assembly (200) comprises an outer tube (201), the outer tube (201) is sleeved on the opening of the outer bottle (100), and the lower end of the outer tube (201) is fixedly sleeved in the inner bottle (400); The sliding part of the pump core assembly (200) comprises: a push tube (202) and a one-way pump core; the push tube (202) is slidably sleeved in the inner cavity of the outer tube (201) along the vertical direction, a return spring (205) is sleeved on the part of the push tube (202) located above the opening of the outer bottle (100), and the top surface of the push tube (202) is connected to the button assembly (300); A one-way pump core is coaxially fixedly connected inside the push tube (202), and the bottom of the one-way pump core is connected to the piercing member (501).

5. The double-chamber aluminum film sealing puncture cavity according to claim 4, It is characterized in that The one-way pump core comprises a guide tube (203), a piston (204) and a one-way transmission valve stem (600); The piston (204) is slidably sleeved on the push tube (202) and is located between the bottom surface of the push tube (202) and the bottom surface of the guide tube (203); The upper end of the one-way transmission valve stem (600) is slidably sleeved in the lower end of the catheter (203) along the vertical direction, and the bottom surface of the one-way transmission valve stem (600) is placed above the top surface of the liquid guide tube (500).

6. The double-chamber aluminum film sealing puncture cavity according to claim 1, It is characterized in that The button assembly (300) comprises a button cover (301) and a water outlet located in the button cover (301), the water outlet is provided with a pipeline connected to the outside, and the lower opening of the water outlet is sleeved in the inner cavity of the upper end of the push tube (202).

7. The double-chamber aluminum film sealing puncture cavity according to claim 1, It is characterized in that The outer bottle (100) is fixedly connected to a shoulder sleeve (700), and the shoulder sleeve (700) is provided with an upper shoulder sleeve opening and a lower shoulder sleeve opening which are connected from top to bottom. The outer wall at the opening of the outer bottle (100) is sleeved and fixedly connected to the opening of the lower shoulder sleeve, and the button assembly (300) is sleeved and fixedly connected to the opening of the upper shoulder sleeve.

8. The double-chamber aluminum film sealing puncture cavity according to claim 7, It is characterized in that The outer surface of the shoulder sleeve (700) is provided with a stepped groove, the upper cover (800) is sleeved on the stepped groove, and the button assembly (300) is enclosed in the upper cover.

9. The double-chamber aluminum film sealing puncture cavity according to claim 1, It is characterized in that The surface of the bottom end of the outer bottle (100) is directly opposite to the center plane of the lower opening of the liquid guide tube (500) and is a concave liquid storage groove (101). The lower opening of the liquid guide tube (500) is an arc-shaped structure with its opening facing the liquid storage groove (101).

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