Single-pump-core double-bin cavity

Abstract

The utility model discloses a single-pump-core double-bin cavity, and relates to the field of container pumps. The liquid storage bottle is provided with the outer bottle body and the inner cavity body, so that two different types of liquid can be isolated and stored; an outer bottle and an inner cavity share a button assembly and a pump core assembly, a puncturing piece is arranged on the inner cavity in a sliding mode, and after the puncturing piece slides upwards along the inner cavity to puncture a sealing layer at the bottom of the inner cavity, contents in the outer bottle and the inner cavity are squeezed out at the same time by pressing the button assembly downwards. 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 single-pump core double-chamber cavity. Background Art

[0002] With the development of society, cosmetics are rapidly popularized in people's lives. As daily consumables, people have higher and higher requirements for the functional use of cosmetics during use. Sometimes they need to mix two products. For this reason, many manufacturers have launched two-in-one container bottles. At present, many two-in-one container bottles have two pump cores that discharge materials separately, or two pump cores that discharge materials together. There are cumbersome liquid discharge parts and complex structures. More parts are required to achieve the same effect, and the cost is higher. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a single pump core double chamber cavity, which can store two different types of liquids in isolation, has a simple structure, is easy to operate, and has good sealing performance.

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

[0005] A single pump core double chamber cavity, comprising an outer bottle, an inner cavity having a lower end placed in the cavity of the outer bottle, and an upper end of the inner cavity being rotatably connected to an opening on the top surface of the outer bottle; the inner cavity is provided with a through hole-shaped inner cavity through tube, a sealing layer is provided from the bottom end surface of the inner cavity to the outer peripheral surface of the inner cavity through tube, and a piercing member is slidably sleeved on the outer surface of the lower end of the inner cavity; when the inner cavity is rotated, the piercing member can slide upward along the outer surface of the inner cavity;

[0006] The upper end of the outer bottle is rotatably sleeved on the lower end of a hollow bottle shoulder, and the upper end of the inner cavity is fixedly sleeved in the upper end of the bottle shoulder;

[0007] A pump core assembly capable of pumping the contents of the outer bottle upward is fixedly connected to the opening at the upper end of the bottle shoulder, the lower end of the pump core assembly extends into the inner cavity through pipe, the bottom of the pump core assembly is connected to a liquid suction tube, and the top surface of the pump core assembly is connected to a button assembly;

[0008] When the button assembly is pressed downward, the pump core assembly can be driven to squeeze out the contents in the outer bottle.

[0009] Furthermore, the inner cavity comprises a coaxially arranged outer ring and an inner ring whose height is greater than that of the outer ring, the top surface of the outer ring to the outer peripheral surface of the inner ring is a horizontal sealing surface, and a sealing layer is disposed from the bottom surface of the outer ring to the outer peripheral surface of the inner ring;

[0010] The inner ring is the inner cavity through tube, the upper end of the inner ring is higher than the outer ring and is fixedly connected to the bottle shoulder, the outer peripheral surface of the outer ring is provided with a plurality of arc-shaped slide grooves with gradually increasing slopes from bottom to top, and the piercing member is slidably placed on the arc-shaped slide grooves.

[0011] Furthermore, the piercing member is a hollow cylinder, a ring bracket is provided inside the bottom end surface of the piercing member, and a plurality of sharp spikes are fixedly connected to the surface of the ring bracket facing the sealing layer; a plurality of cylindrical protrusions are symmetrically provided on the inner wall of the piercing member, and each protrusion (303) is slidably connected to the outer surface of the inner cavity.

[0012] Furthermore, the pump core assembly includes an outer tube, the opening of the outer tube is fixedly connected to the opening of the upper end of the bottle shoulder, and the lower end of the outer tube is placed in the inner cavity through tube;

[0013] 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; a one-way pump core is coaxially fixed inside the push tube, and a suction tube is connected to the bottom end of the one-way pump core.

[0014] 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 on the top of the pump core assembly.

[0015] Furthermore, the outer peripheral surface of the upper end of the bottle shoulder is rotatably sleeved in the lower end of a hollow outer shoulder sleeve, and the button assembly is sleeved in the upper end of the outer shoulder sleeve.

[0016] Furthermore, the outer surface of the outer shoulder sleeve is provided with a stepped groove, a bottle cap is sleeved on the stepped groove, and the button assembly is wrapped in the bottle cap.

[0017] Furthermore, the surface of the bottom end face of the outer bottle is a concave liquid storage groove facing the center plane of the lower opening of the pipette, and the lower opening of the pipette is an arc-shaped structure with its opening facing the liquid storage groove.

[0018] The beneficial technical effect of the utility model is as follows: the utility model provides a single-pump core dual-chamber cavity, which can store two different types of liquids in isolation, and the contents in the dual chambers are discharged through the same button assembly and the same pump core assembly. The utility model has a simple structure, is easy to operate, has good sealing performance, and has low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the utility model in its initial state, when the sealing layer is not punctured;

[0020] Figure 2 This is a schematic diagram of the punctured state of the sealing layer of the utility model;

[0021] Figure 3 It is a schematic diagram of the piercing member of the utility model;

[0022] Figure 4 It is a schematic diagram of the inner cavity of the utility model;

[0023] Figure 5This is a schematic diagram of the inner cavity of the utility model from another angle;

[0024] Figure 6 This is a schematic diagram of the assembly of the button assembly, the pump core assembly and the liquid pipette of the utility model;

[0025] Figure 7 yes Figure 6 A cross-sectional view of

[0026] Figure 8 This is a practical diagram of the bottle shoulder of the utility model.

[0027] in:

[0028] 100-outer bottle, 101-liquid storage groove;

[0029] 200-inner cavity, 201-sealing layer, 200-1-outer ring, 200-2-inner ring, 202-arc sliding groove, 202-1-positioning strip, 202-2-limiting platform part, 203-arc clamping block, 204-rectangular clamping block;

[0030] 300-piercing member, 302-annular bracket, 301-spike portion, 303-convex column;

[0031] 400-bottle shoulder, 401-inner rotation groove, 402-arc-shaped snap-fit ​​groove, 403-two rectangular snap-fit ​​grooves;

[0032] 500-pump core assembly, 501-outer tube, 502-push tube, 504-piston, 503-conduit, 5031-feeding hole, 5032-limiting plate, 505-reset spring, 506-guide groove, 5011-pump core connecting edge, 507-sealed cavity for extractable material, 508-check valve;

[0033] 600 - suction tube, 700 - button assembly, 701 - button cover, 702 - vertical connecting pipe, 703 - horizontal water outlet pipe, 800 - outer shoulder sleeve, 900 - bottle cap. DETAILED DESCRIPTION

[0034] 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.

[0035] like Figure 1-2As shown, the utility model provides a single pump core double chamber cavity, including an outer bottle 100, the outer bottle 100 is a cylindrical cavity with an open top surface. The inner wall surface of the upper end of the outer bottle 100 shrinks inward toward its central axis to form a ring-shaped outer bottle inner edge, and an inner cavity 200 is horizontally rotated on the outer bottle inner edge. The inner cavity 200 is placed in the outer bottle 100, and the space between the outer wall of the inner cavity 200 and the inner wall of the outer bottle 100 is the first storage cavity.

[0036] In addition, an annular rotation convex strip is provided on the outer circumferential surface of the upper end of the outer bottle 100 for rotationally connecting with the bottle shoulder 400 .

[0037] like Figure 4-5 As shown, the inner cavity 200 includes a coaxially arranged outer ring 200-1 and an inner ring 200-2 whose height is greater than that of the outer ring. The outer ring 200-1 and the bottom surface of the inner ring 200-2 are located in the same plane. The top surface of the outer ring 200-1 to the outer peripheral surface of the inner ring 200-2 is a horizontal sealing surface, and the bottom end surface of the sealing surface is placed on the inner edge of the outer bottle. At this time, the upper end of the inner ring 200-2 of the inner cavity 200 grows out of the top surface of the outer ring 200-1 and the top surface of the outer bottle 100. A horizontal sealing layer 201 is provided on the bottom surface between the bottom surface of the outer ring 200-1 and the outer peripheral surface of the inner ring 200-2. Therefore, the sealed cavity between the inner ring 200-2 and the outer ring 200-1 is the closed storage cavity of the inner cavity 200, that is, the second storage cavity.

[0038] The inner ring 200-2 serves as the inner cavity channel of the inner cavity 200, accommodating the pump core assembly 500 and the liquid suction tube 600. Two arc-shaped slide grooves 202 with increasing slopes from bottom to top are symmetrically arranged on the outer circumference of the outer ring 200-1. A positioning strip 202-1 is arranged at the lowest point of each arc-shaped slide groove 202. A limiting platform portion 202-2 is extended parallel to the annular surface of the outer ring 200-1 at the top end with the largest slope of each arc-shaped slide groove 202.

[0039] The outer peripheral surface of the lower end of the outer ring 200-1 is slidably sleeved in a piercing member 300. Figure 3As shown, the piercing member 300 is a hollow cylinder with a diameter greater than the diameter of the inner cavity 200. An annular bracket 302 is provided on the bottom end surface of the piercing member 300, and the annular bracket 302 is fixedly connected to the inner wall of the bottom end of the piercing member 300 through a plurality of symmetrically distributed horizontal connecting blocks. A plurality of spikes 301 are symmetrically distributed on the upper surface of the annular bracket 302 facing the sealing layer 201. In the utility model, five spikes are symmetrically arranged along the annular surface of the annular bracket 302. Preferably, a plurality of spikes 301 are also provided on the connecting block to further facilitate piercing the sealing layer 201. In order to achieve connection with the outer ring 200-1, two cylindrical bosses 303 are symmetrically arranged on the inner wall of the upper end of the piercing member 300. When the utility model is in the initial state, that is, when the sealing layer 201 is not punctured, the two protrusions 303 are respectively placed on the positioning strips 202-1 on the two arc-shaped slide grooves 202. At this time, the inner cavity 200 is sleeved in the piercing member 300, and the sealing layer 201 is placed above the spike 301. When the inner cavity 200 is rotated counterclockwise, the two protrusions 303 each slide upward along the arc-shaped slide groove 202 with the piercing member 300. When it slides to the limiting platform part 202-2 of the arc-shaped slide groove 202, the piercing member 300 slides into place and stops on the limiting platform part 202-2. At this time, the spike 301 punctures the sealing layer 201, and the content in the inner cavity 200 flows into the cavity of the outer bottle 100 under the action of gravity.

[0040] In addition, a plurality of snap-in blocks are provided on the outer surface of the upper end portion of the inner ring 200-2 extending beyond the top surface of the outer ring 200-1. In the present invention, two arc-shaped snap-in blocks 203 and two rectangular snap-in blocks 204 are provided, and the two arc-shaped snap-in blocks 203 are symmetrically distributed at intervals, and the two rectangular snap-in blocks 204 are symmetrically distributed at intervals.

[0041] like Figure 1-2 As shown, the upper end of the outer bottle 100 is rotatably sleeved into the lower end of a bottle shoulder 400 , and the upper end of the outer ring 200 - 1 of the inner cavity 200 is fixedly connected to the inner wall of the upper end of the bottle shoulder 400 .

[0042] The bottle shoulder 400 of the utility model is a hollow tube with an upper end and a lower end connected, and the diameter of the lower end is larger than the diameter of the upper end. An annular inner rotation groove 401 is provided on the inner wall of the lower end of the bottle shoulder 400. The rotation convex strip on the outer circumference of the outer bottle 100 is clamped in the inner rotation groove 401, thereby realizing horizontal rotation connection between the bottle shoulder 400 and the outer bottle 100.

[0043] The inner wall of the upper end of the bottle shoulder 400 is provided with a plurality of snap-fit ​​grooves. In the present invention, four snap-fit ​​grooves are provided, two arc snap-fit ​​grooves 402 and two rectangular snap-fit ​​grooves 403. The distribution positions of the two arc snap-fit ​​grooves 402 and the two rectangular snap-fit ​​grooves 403 correspond to the above-mentioned two arc snap-fit ​​blocks 203 and two rectangular snap-fit ​​blocks 204. The two arc snap-fit ​​blocks 203 on the inner ring 200-2 are respectively snapped into the two arc snap-fit ​​grooves 402, and the two rectangular snap-fit ​​blocks 204 are distributed and snapped into the two rectangular snap-fit ​​grooves 403, thereby realizing the fixed connection between the inner cavity 200 and the bottle shoulder 400.

[0044] like Figure 1-2 As shown, a pump core assembly 500 capable of pumping the contents in the outer bottle 100 upwards is fixedly connected to the upper end of the bottle shoulder 400, and the lower end of the pump core assembly 500 extends into the inner ring 200-2.

[0045] like Figure 6-7 As shown, the pump core assembly 500 of the utility model has the same structure as the pump core in the prior art CN 207046039 U, including an outer tube 501, a push tube 502, a piston 504, a conduit 503, a limit plate 5032, a return spring 505, a guide groove 506, and a one-way valve 508, wherein the piston 504 includes an outer ring, an inner ring and a connecting ring, and a feed through hole 5031 is provided on the side wall of the conduit 503, and the specific connection relationship thereof is not repeated here.

[0046] In addition, the outer surface of the opening of the outer tube 501 in the pump core assembly 500 of the utility model protrudes in a direction away from the central axis thereof to form a pump core connection edge 5011, which is fixedly connected to the top surface of the upper port of the bottle shoulder 400, and the lower end of the outer tube 501 is located in the inner ring 200-2 of the inner cavity 200. A liquid pipette 600 is coaxially sleeved at the lower end of the outer tube 501, and the one-way valve 508 is placed at the connection between the outer tube 501 and the liquid pipette 600, and is blocked at the top surface of the liquid pipette 600. At this point, a sealed cavity 507 for the material to be extracted is formed from the abutment between the piston 204 in the cavity of the outer tube 501 and the limit plate 2032 to the connection between the one-way valve 508 and the outer tube 501.

[0047] Preferably, an annular gasket is further provided at the place where the pump core connecting edge 5011 is fixed to the top surface of the upper end of the bottle shoulder 400 .

[0048] like Figure 6-7 As shown, a button assembly 700 is clamped on the push tube 502. The button assembly 700 of the utility model comprises a button cover 701 and a water outlet end located in the button cover 701.

[0049] The open end of the button cover 701 faces the pump core assembly 500, and the water outlet end includes a vertical connecting pipe 702 and a horizontal water outlet pipe 703 perpendicular to the vertical connecting pipe and located at the upper end of the vertical connecting pipe, and the horizontal water outlet pipe 703 is connected to the outside. The vertical connecting pipe 702 and the horizontal water outlet pipe 703 form a mirrored "7"-shaped water outlet channel. The vertical connecting pipe 702 is coaxially sleeved on the upper end of the inner wall of the push tube 502, and when the utility model is in the initial state, there is a distance "H" between the bottom end of the button cover 701 facing the pump core assembly 500 and the upper surface of the pump core connection edge 5011, and the distance "H" is the stroke of the button assembly 700 driving the pump core assembly 500 to operate.

[0050] In addition, the outer circumference of the upper port of the bottle shoulder 400 is rotatably and slidably sleeved in the lower end of a hollow outer shoulder sleeve 800, and the button cover 701 is sleeved in the upper end of the outer shoulder sleeve 800. The inner wall of the lower end of the outer shoulder sleeve 800 is provided with a thread, and correspondingly, the outer circumference of the upper port of the bottle shoulder 400 is provided with a thread groove suitable for the inner wall of the lower end of the outer shoulder sleeve 800, thereby realizing the rotational sliding connection between the bottle shoulder 400 and the outer shoulder sleeve 800.

[0051] Preferably, the outer surface of the outer shoulder sleeve 800 is provided with a stepped groove, the bottle cap 900 is sleeved on the stepped groove, and the button assembly 700 is wrapped in the bottle cap 900, so that when the utility model is not in use, the water outlet end of the button assembly 700 is protected from external contamination.

[0052] Preferably, the upper surface of the bottom end surface of the outer bottle 100 is concave downwardly facing the lower opening of the pipette 600 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. The lower opening of the pipette 600 is an arc-shaped structure with the opening facing the liquid storage groove 101, so this design is more conducive to sucking out the contents in the outer bottle.

[0053] The operating principle and operation process of the utility model are:

[0054] Puncture and mixing stage:

[0055] Open the upper cover, rotate the bottle shoulder 400 counterclockwise, and the inner cavity 200 fixed to the bottle shoulder 400 rotates counterclockwise synchronously. At the same time, the piercing member 300 slides upward along the arc-shaped slide groove 202. When it slides to the limiting platform part 202-2, the piercing member 300 slides into place and stops on the limiting platform part 202-2. At this time, the sharp thorn part 301 pierces the sealing layer 201, and the contents in the inner cavity 200 flow into the cavity of the outer bottle 100 under the action of gravity.

[0056] Exhaust stage:

[0057] When the button cover 701 is pressed downward, the push tube 502 is subjected to a downward force, which synchronously drives the conduit 503 to move downward. While the conduit 503 is moving downward, when the bottom of the push tube 502 moves to the upper surface of the connecting ring, the piston 504 is subjected to a downward thrust and moves downward synchronously with the push tube 502. Since the downward movement time of the piston 504 and the limiting plate 5032 connected to the bottom end of the conduit 503 is inconsistent, a gap is slowly formed between the two during the downward movement, and the gas inside the pump core assembly 500 is discharged from the gap between the limiting plate 5032 and the piston 504.

[0058] Extraction stage:

[0059] After the exhaust is completed, the button cover 701 is released, and the push tube 502 is driven by the return spring 505 to move downward, and the push tube 502 simultaneously drives the guide tube 503 and the limit plate 5032 to move upward. When the limit plate 5032 rises to the lower surface of the connecting ring, the limit plate 5032 drives the piston 504 to move upward and reset, thereby the limit plate 5032 and the piston 504 are closed; at the same time, the limit plate 5032 drives the piston 504 to continue to move upward, and the cavity volume of the sealed cavity 507 of the object to be extracted changes from small to large, and negative pressure is generated in the cavity. The one-way valve 508 jumps upward under the action of the negative pressure, and a gap is generated with the pipette 600. Under the continuous negative pressure generated by the pump core assembly 500, the contents in the outer bottle 100 enter the sealed cavity 507 of the object to be extracted through the gap between the one-way valve 508 and the pipette 600.

[0060] Discharging stage:

[0061] When the sealed chamber 507 for the object to be extracted is filled with contents, the button cover 701 is pressed, and the push tube 502 drives the conduit 503 to move downward. When the bottom end of the push tube 502 abuts against the connecting ring, the push tube 502 drives the piston 504 to move downward. At this time, the volume of the sealed chamber 507 for the object to be extracted becomes smaller, and a positive pressure is formed in the chamber. The one-way valve 508 is sealed with the top surface of the pipette 600 under the action of the positive pressure. The contents in the sealed chamber 507 for the object to be extracted pass through the gap between the piston 504 and the limit plate 5032, and enter the conduit 503 through the feed through hole 5031 on the conduit 503, and finally enter the vertical connecting tube and the horizontal connecting tube in the button assembly 700 in turn, and finally flow out from the horizontal connecting tube.

[0062] 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 single pump core double chamber cavity, characterized in that: The invention comprises an outer bottle (100), a lower end of an inner cavity (200) is placed in the cavity of the outer bottle (100), and the upper end of the inner cavity (200) is rotatably connected to the opening of the top surface of the outer bottle (100); the inner cavity (200) is provided with a through-hole-shaped inner cavity through tube, a sealing layer (201) is provided from the bottom end surface of the inner cavity (200) to the outer peripheral surface of the inner cavity through tube, and a piercing member (300) is slidably sleeved on the outer surface of the lower end of the inner cavity (200); when the inner cavity (200) is rotated, the piercing member (300) can slide upward along the outer surface of the inner cavity (200); The upper end of the outer bottle (100) is rotatably sleeved on the lower end of a hollow bottle shoulder (400), and the upper end of the inner cavity (200) is fixedly sleeved inside the upper end of the bottle shoulder (400); A pump core assembly (500) capable of pumping the contents of the outer bottle (100) upward is fixedly connected to the upper opening of the bottle shoulder (400), the lower end of the pump core assembly (500) extends into the inner cavity through tube, the bottom of the pump core assembly (500) is connected to a liquid suction tube (600), and the top surface of the pump core assembly (500) is connected to a button assembly (700); When the button assembly (700) is pressed downward, the pump core assembly (500) can be driven to squeeze out the contents in the outer bottle (100).

2. The single pump core double chamber chamber according to claim 1, characterized in that: The inner cavity (200) comprises a coaxially arranged outer ring (200-1) and an inner ring (200-2) whose height is greater than that of the outer ring; a horizontal sealing surface is formed from the top surface of the outer ring (200-1) to the outer peripheral surface of the inner ring (200-2); and a sealing layer (201) is disposed from the bottom surface of the outer ring (200-1) to the outer peripheral surface of the inner ring (200-2); The inner ring (200-2) is the inner cavity through tube. The upper end of the inner ring (200-2) is higher than the outer ring (200-1) and is fixedly connected to the bottle shoulder (400). The outer peripheral surface of the outer ring (200-1) is provided with a plurality of arc-shaped sliding grooves (202) with a gradually increasing slope from bottom to top, and the piercing member (300) is slidably placed on the arc-shaped sliding grooves (202).

3. The single pump core double chamber chamber according to claim 1, characterized in that: The piercing member (300) is a hollow cylinder. An annular support (302) is provided inside the bottom end surface of the piercing member (300). A plurality of sharp spikes (301) are fixedly connected to the surface of the annular support (302) facing the sealing layer (201). A plurality of cylindrical protrusions (303) are symmetrically provided on the inner wall of the piercing member (300). Each protrusion (303) is slidably connected to the outer surface of the inner cavity (200).

4. The single pump core double chamber chamber according to claim 1, characterized in that: The pump core assembly (500) comprises an outer tube (501), the opening of the outer tube (501) is fixedly connected to the upper opening of the bottle shoulder (400), and the lower end of the outer tube (501) is placed in the inner cavity through tube; The push tube (502) is slidably sleeved in the inner cavity of the outer tube (501) along the vertical direction, and a return spring (505) is sleeved on the part of the push tube (502) placed above the opening of the outer bottle (100), and the top surface of the push tube (502) is connected to the button assembly (700); a one-way pump core is coaxially fixed inside the push tube (502), and the bottom end of the one-way pump core is connected to a suction tube (600).

5. The single pump core double chamber chamber according to claim 1, characterized in that: The button assembly (700) comprises a button cover (701) and a water outlet located in the button cover (701), the water outlet is provided with a pipeline connected to the outside, and the lower opening of the water outlet is sleeved on the top of the pump core assembly (500).

6. The single pump core double chamber chamber according to claim 1, characterized in that: The outer peripheral surface of the upper end of the bottle shoulder (400) is rotatably sleeved in the lower end of a hollow outer shoulder sleeve (800), and the button assembly (700) is sleeved in the upper end of the outer shoulder sleeve (800).

7. The single pump core double chamber chamber according to claim 6, characterized in that: The outer surface of the outer shoulder sleeve (800) is provided with a stepped groove, a bottle cap (900) is sleeved on the stepped groove, and the button assembly (700) is enclosed in the bottle cap (900).

8. The single pump core double chamber chamber according to claim 1, characterized in that: The surface of the bottom end surface of the outer bottle (100) is directly opposite to the center plane of the lower opening of the pipette (600) and is a concave liquid storage groove (101). The lower opening of the pipette (600) is an arc-shaped structure with its opening facing the liquid storage groove.

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