A soft pack bottle and method of use thereof

Abstract

The application discloses a soft packaging bottle and a use method thereof, which comprises a bottle body and a bottle cap, the bottle cap comprises a bottom cap, the bottom cap is connected with a top cap, the bottle body comprises an inner layer body and an outer layer body, a cavity is formed between the inner side of the outer layer body and the outer side of the inner layer body, the cavity contains air, a circular ring cylinder is inserted and arranged on the upper end of the bottom cap, the bottom of the circular ring cylinder is provided with an opening, the bottom of the bottom cap is provided with a through hole, the bottom of the through hole is communicated with the upper end of the cavity, the upper end of the through hole is connected with the opening of the bottom of the circular ring cylinder, the circular ring cylinder, the through hole and the cavity are communicated with each other and form a sealed cavity, a guide pipe is arranged on the inner side of the bottom cap, the bottom of the guide pipe is communicated with the inside of the inner layer body, a pressing plate is arranged on the outer side of the guide pipe, the bottom of the pressing plate is abutted with the upper end of the circular ring cylinder, when the pressing plate moves downward and presses the circular ring cylinder downward, the circular ring cylinder is compressed, the air pressure in the cavity is increased, when the pressing plate moves upward, the circular ring cylinder rebounds, and the air pressure in the cavity is decreased. The application provides a soft packaging bottle, which is easy to squeeze, is not easy to cause leakage after use, and can avoid pollution and waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging bottles, in particular to a soft packaging bottle and a use method thereof. BACKGROUND

[0002] At present, most of the packaging bottles with soft material bottle bodies are used for storing viscous liquid or colloid. During use, the bottle body is squeezed to make the liquid in the bottle extrude from the bottle opening of the bottle cap. After use, the liquid at the bottle opening remains at the bottle opening. Since the liquid is viscous, the remaining liquid is easy to extend to the outer end of the bottle opening, which causes the liquid to be squeezed outwards when the bottle opening is capped, resulting in pollution and waste. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a soft packaging bottle and a use method thereof, which is easy to squeeze and does not easily cause leakage after use, thereby avoiding pollution and waste.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0005] A soft packaging bottle comprises a bottle body and a bottle cap. The bottle cap comprises a bottom cap, and a top cap is threadedly connected to the outer wall of the bottom cap. The bottom cap is sealingly connected to the upper end of the bottle body. The bottle body comprises an inner layer body and an outer layer body located outside the inner layer body. A cavity is formed between the inner side of the outer layer body and the outer side of the inner layer body, and air is stored in the cavity. A circular ring cylinder is inserted and mounted at the upper end of the bottom cap. The bottom of the circular ring cylinder is open. A through hole is provided at the bottom of the bottom cap. The bottom of the through hole is in communication with the upper end of the cavity, and the upper end of the through hole is connected to the opening at the bottom of the circular ring cylinder. The circular ring cylinder, the through hole and the cavity are in communication and form a sealed cavity. A conduit is mounted on the inner side of the bottom cap, and the bottom of the conduit is in communication with the inside of the inner layer body. A pressing plate is provided on the outer side of the conduit, and the pressing plate can move up and down along the axis of the conduit. The bottom of the pressing plate abuts against the upper end of the circular ring cylinder. When the pressing plate moves downward and presses the circular ring cylinder, the circular ring cylinder is compressed, the air pressure in the cavity is increased, and when the pressing plate moves upward, the circular ring cylinder rebounds and the air pressure in the cavity is reduced.

[0006] The upper end of the bottom cap is provided with a ring groove one. The circular ring cylinder comprises a ring part two located below, and the ring part two is inserted into the ring groove one. The bottom surface of the ring part two abuts against the bottom surface of the ring groove one to form a seal. The upper end of the through hole is in communication with the bottom of the ring groove one.

[0007] The bottom of the ring groove one is provided with a hook groove on both sides, and the bottom of the ring part two is provided with an extension part two. The extension part two is inserted into the corresponding hook groove.

[0008] The circular ring cylinder comprises a ring part one located at the upper end. The top of the ring part one is provided with an extension part one. The bottom of the pressing plate is provided with a groove, and the extension part one is clamped into the groove.

[0009] The pressing plate comprises a convex ring located at the bottom. The bottom cap comprises a circular ring located above. The inner circular surface of the ring part one is attached to the outer circular surface of the convex ring, and the outer circular surface of the ring part one is attached to the inner circular surface of the circular ring.

[0010] The bottom cover upper end is provided with a ring groove II, and the convex ring can be extended into and out of the ring groove II inner wall up and down.

[0011] The catheter outer wall is sleeved with a spring, the spring upper end abuts against the pressing plate bottom, and the spring lower end abuts against the bottom cover top.

[0012] The top cover comprises a lower top cover, the catheter is inserted into the lower top cover, the catheter upper part is provided with a flange, the flange is located above the lower top cover, and the lower top cover can abut against the flange lower end face when moving upwards.

[0013] The catheter bottom is connected with a connecting plate, and the connecting plate upper end face is attached to the bottom cover bottom surface.

[0014] A soft packaging bottle using method, comprising a soft packaging bottle, and the using method is as follows:

[0015] ① Turn the top cover downward, the top cover bottom abuts against the pressing plate and pushes the pressing plate downward, the pressing plate bottom compresses the circular ring cylinder, the circular ring cylinder is deformed to be shrunk, so that the gas pressure in the closed cavity formed by the mutual communication of the circular ring cylinder, the through hole and the cavity is increased;

[0016] ② Turn the top cover upward to the limit position, the pressing plate moves upward, and the circular ring cylinder returns to the original state, so that the gas pressure in the closed cavity formed by the mutual communication of the circular ring cylinder, the through hole and the cavity is reduced.

[0017] The beneficial effects of the present application are:

[0018] By changing the volume of the closed cavity formed by the mutual communication of the circular ring cylinder, the through hole and the cavity, the gas pressure change is formed, so that when the inner layer body is extruded, the liquid is more labor-saving. And after the use is completed, the liquid at the catheter upper end outlet is easy to flow back to the catheter under the action of the external atmospheric pressure, so as to avoid pollution and waste caused by liquid leakage. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view of the embodiment;

[0020] Figure 2 It is Figure 1 It is an enlarged view of A in the middle;

[0021] Figure 3 It is Figure 1 It is an enlarged view of B in the middle;

[0022] Figure 4 It is Figure 1 It is a sectional view of the circular ring cylinder M-M in the middle;

[0023] Figure 5 It is a partial sectional view of the top cover in the embodiment in an open state.

[0024] In the diagram: Bottle body 1, Inner layer 11, Outer layer 12, Cavity 13, Bottom cap 2, Ring groove 1 21, Hook groove 211, Through hole 22, Ring groove 2 23, Circular ring 24, Circular ring cylinder 3, Ring part 1 31, Extension part 1 311, Ring part 2 32, Extension part 2 321, Pressure plate 4, Protruding ring 41, Groove 42, Limiting plate 5, Top cap 6, Upper top cap 61, Protruding block 611, Extension ring 612, Lower top cap 62, Cylinder ring 621, Disc 622, Guide tube 7, Flange 71, Spring 8, Connecting plate 9. Detailed Implementation

[0025] The technical solution of the present invention will be further described below through embodiments and in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown, a flexible packaging bottle includes a bottle body 1 and a bottle cap. The bottle cap includes a bottom cap 2, which is sealed to the upper end of the bottle body 1. Specifically, the bottle body 1 includes an inner layer 11 and an outer layer 12 located outside the inner layer 11. Both the inner layer 11 and the outer layer 12 are made of flexible plastic, and the upper ends of both the inner layer 11 and the outer layer 12 are sealed to the bottom of the bottom cap 2. The inner layer 11 is used to store liquids, and the outer layer 12 surrounds the outer side of the inner layer 11. A cavity 13 is formed between the inner side of the outer layer 12 and the outer side of the inner layer 11, and the cavity 13 contains air.

[0027] like Figure 2 As shown, the upper end of the bottom cover 2 is provided with an annular groove 21, which is a ring groove and is recessed downward along the upper surface of the bottom cover 2. The bottom of the bottom cover 2 is provided with a through hole 22, the upper end of which communicates with the bottom of the annular groove 21. Specifically, the through hole 22 extends downward along the bottom surface of the annular groove 21 and penetrates the bottom of the bottom cover 2. Figure 4 As shown, multiple through holes 22 are evenly distributed in the circumferential direction.

[0028] like Figure 1 , Figure 3 As shown, a circular ring 3, made of rubber, is inserted and installed at the upper end of the bottom cover 2. Figure 4 As shown, the annular cylinder 3 has a circular structure with an open bottom and a closed top. Specifically, the annular cylinder 3 includes a first ring portion 31 and a second ring portion 32 located below the first ring portion 31. The bottom of the second ring portion 32 is the opening of the annular cylinder 3. The second ring portion 32 is inserted into the first annular groove 21. The bottom surface of the second ring portion 32 abuts against the bottom surface of the first annular groove 21 to form a seal. The inner and outer outer walls of the second ring portion 32 are respectively attached to the inner and outer outer walls of the first annular groove 21.

[0029] like Figure 3As shown, the bottom of the first ring groove 21 is provided with hook grooves 211 on both sides. The hook grooves 211 are circular annular grooves. Correspondingly, the bottom of the second ring 32 is provided with extensions 321 on both sides. The extensions 321 are inserted into the corresponding hook grooves 211. During installation, sealant is pre-applied to the hook grooves 211, and then the extensions 321 are inserted to achieve a better sealing effect.

[0030] The bottom of the through hole 22 is connected to the upper end of the cavity 13, and the upper end of the through hole 22 is connected to the bottom opening of the second ring 32. Therefore, the annular cylinder 3, the through hole 22, and the cavity 13 are interconnected and form a sealed cavity. The initial state of the annular cylinder 3 is as follows. Figure 3 As shown, when the annular cylinder 3 is compressed, the air pressure inside the sealed cavity increases; when the compressed annular cylinder 3 returns to its initial state, the air pressure inside the sealed cavity decreases.

[0031] like Figure 2 As shown, the bottom cover 2 includes an upper ring 24, which is a cylindrical structure. The ring 24 extends upward along the outer periphery of the upper end of the bottom cover 2. A pressure plate 4 is slidably connected to the inner side of the ring 24. The outer peripheral wall of the pressure plate 4 is in clearance fit with the inner peripheral wall of the ring 24, and the pressure plate 4 can move up and down along the inner wall of the ring 24. The bottom of the pressure plate 4 abuts against the upper end of the ring portion 31. When the pressure plate 4 moves downward, it can squeeze the ring portion 31 downward, thereby increasing the air pressure in the cavity 13.

[0032] like Figure 3 As shown, to prevent the ring portion 31 from failing to spring back after being pressed down, an extension portion 311 is provided at the top of the ring portion 31. The extension portion 311 is annular, and the bottom of the pressure plate 4 has a corresponding groove 42. The extension portion 311 is inserted into the groove 42. The upper cross-section of the extension portion 311 is arc-shaped, and the bottom of the groove 42 is constricted, making it difficult for the extension portion 311 to separate after it is inserted into the groove 42. When the pressure plate 4 moves upward, the groove 42 of the pressure plate 4 clamps the extension portion 311, so that the ring portion 31 can spring back normally.

[0033] like Figure 3 As shown, the pressure plate 4 includes a convex ring 41 located at the bottom. The convex ring 41 extends downward along the bottom surface of the pressure plate 4 to form a ring-shaped structure. The inner circular surface of the ring portion 31 fits against the outer circular surface of the convex ring 41, and the outer circular surface of the ring portion 31 fits against the inner circular surface of the ring 24. This creates a limit on the outer periphery of the ring portion 31, preventing it from deforming under downward pressure and causing only a small change in the volume of the inner cavity due to outward expansion, thus resulting in insignificant changes in air pressure within the cavity 13. By creating a limit on the outer periphery of the ring portion 31, this problem is effectively solved.

[0034] like Figure 3As shown, the upper end of the bottom cover 2 is provided with a ring groove 23, and the convex ring 41 can move up and down along the inner wall of the ring groove 23. The height of the convex ring 41 matches the height of the ring part 31 and the depth of the ring groove 23.

[0035] As shown in the drawings, Figure 1 , Figure 2 The bottom cover 2 is provided with a conduit 7, and the bottom of the conduit 7 is threadedly connected through the bottom cover 2 and extends into the inner layer body 11, so that the bottom of the conduit 7 is in communication with the inside of the inner layer body 11. The upper end of the conduit 7 passes through the pressing plate 4, and the moving direction of the pressing plate 4 is the axial direction of the conduit 7. The outer wall of the conduit 7 is sleeved with a spring 8, the upper end of the spring 8 abuts against the bottom of the pressing plate 4, and the lower end of the spring 8 abuts against the top of the bottom cover 2.

[0036] A limiting plate 5 is fixedly arranged on the inner side of the circular ring 24, and the limiting plate 5 is located above the pressing plate 4. The limiting plate 5 serves to limit the upward movement of the pressing plate 4.

[0037] As shown in the drawings, Figure 1 The outer wall of the bottom cover 2 is threadedly connected with a top cover 6, and the top cover 6 is made of hard plastic material. The top cover 6 includes an upper top cover 61 and a lower top cover 62 located below the upper top cover 61. The lower top cover 62 and the upper top cover 61 are integrally formed and can be flipped over. Figure 1 As shown in the drawings, the lower top cover 62 and the upper top cover 6 are in a pressed state. Figure 5 As shown in the drawings, the lower top cover 62 and the upper top cover 6 are in an open state.

[0038] As shown in the drawings, Figure 2 The lower top cover 62 includes a cylindrical ring 621 and a disc 622, and the cylindrical ring 621 is located outside the disc 622. The cylindrical ring 621 extends downward along the outer periphery of the bottom of the lower top cover 62 to form a cylindrical shape, and the cylindrical ring 621 is threadedly connected with the outer wall of the bottom cover 2. The disc 622 extends downward along the center of the bottom of the lower top cover 62, and the bottom of the disc 622 abuts against the upper end of the pressing plate 4. When the lower top cover 62 is rotated downward, the disc 622 moves downward to push the pressing plate 4 to move downward, thereby compressing the ring part 31.

[0039] The upper end of the conduit 7 passes through the lower top cover 62, and the upper part of the conduit 7 is provided with a flange 71 located above the lower top cover 62. When the lower top cover 62 moves upward, the lower end surface of the flange 71 can be abutted. The bottom of the conduit 7 is connected with a connecting plate 9, and the upper end surface of the connecting plate 9 is attached to the bottom surface of the bottom cover 2. A sealing gasket is arranged between the upper end surface of the connecting plate 9 and the bottom surface of the bottom cover 2. When the lower top cover 62 is rotated upward to abut against the flange 71, the upward stroke of the lower top cover 62 is terminated. A gasket is arranged between the lower top cover 62 and the flange 71 to enable the lower top cover 62 to be tightened after being rotated upward, thereby preventing the lower top cover 62 from being loosened after being rotated to the limit position.

[0040] As shown in the drawings, Figure 1 , Figure 5As shown, the upper cover 61 is provided with a protruding block 611 on one side, and the lower cover 62 is provided with a corresponding groove on one side, the protruding block 611 can be clamped into the groove of the lower cover 62, so that the upper cover 61 and the lower cover 62 are buckled to form a cover.

[0041] The inner side of the upper cover 61 is provided with an extension ring 612, which is a cylindrical structure, when the cover is closed, the extension ring 612 is sleeved into the upper end of the catheter 7, the upper end surface of the catheter 7 is attached to the upper wall surface of the upper cover 61, and the upper end of the catheter 7 is closed.

[0042] The specific use method is:

[0043] ①Open the upper cover 61, the protruding block 611 is separated from the corresponding groove on the upper cover 62, and the extension ring 612 is separated from the upper end of the catheter 7.

[0044] ②Rotate the lower cover 62 downward, the top of the lower cover 62 is separated from the flange 71, the disc 622 is pressed against the upper end of the pressing plate 4 and pushes the pressing plate 4 downward, the pressing plate 4 moves downward and compresses the spring 8, the top of the pressing plate 4 is separated from the bottom of the limiting plate 5, the bottom of the pressing plate 4 compresses the ring part one 31, the ring part one 31 is pressed and deformed, the volume of the closed cavity formed by the circular ring cylinder 3, the through hole 22 and the cavity 13 is reduced, and the air pressure is increased. The outer layer body 12 is extruded outside, and the liquid in the inner layer body 11 is extruded along the catheter 7. Because the air pressure in the cavity 13 is increased, the air pressure in the cavity 13 also forms an extrusion force on the outer wall of the inner layer body 11, so that the extrusion is easier.

[0045] ③Rotate the cover 62 upward until the top of the cover 62 is attached to the bottom of the flange 71, in the process, the pressing plate 4 moves upward under the restoring force of the spring 8, the groove 42 of the pressing plate 4 pulls the extension part one 311 of the ring part one 31 to make the ring part one 31 return to the original state, the volume of the closed cavity formed by the circular ring cylinder 3, the through hole 22 and the cavity 13 is increased, and the air pressure is reduced. The air pressure in the cavity 13 is reduced, so that the inner layer body 11 appears to expand outward, the volume of the inner layer body 11 is increased, the air pressure is reduced, so that the air pressure outside the opening at the upper end of the catheter 7 and the air pressure in the inner layer body 11 form a pressure difference, which helps the liquid at the opening at the upper end of the catheter 7 to flow back into the catheter 7 under the action of atmospheric pressure.

[0046] ④Close the upper cover 61, the protruding block 611 is clamped into the corresponding groove on the lower cover 62, and the extension ring 612 is sleeved into the catheter 7.

[0047] The above only describes the preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A soft pack bottle comprising a bottle body (1) and a cap, characterized in that: The bottle cap comprises a bottom cover (2), a top cover (6) is threadedly connected to the outer wall of the bottom cover (2), the bottom cover (2) is sealingly connected to the upper end of the bottle body (1), the bottle body (1) comprises an inner layer body (11) and an outer layer body (12) located outside the inner layer body (11), a cavity (13) is formed between the inner side of the outer layer body (12) and the outer side of the inner layer body (11), the cavity (13) contains air, a circular ring cylinder (3) is inserted and mounted at the upper end of the bottom cover (2), the bottom of the circular ring cylinder (3) is open, a through hole (22) is arranged at the bottom of the bottom cover (2), the bottom of the through hole (22) is in communication with the upper end of the cavity (13), the upper end of the through hole (22) is connected with the bottom opening of the circular ring cylinder (3), the circular ring cylinder (3), the through hole (22) and the cavity (13) are in communication and form a sealed cavity, a guide pipe (7) is mounted inside the bottom cover (2), the bottom of the guide pipe (7) is in communication with the inside of the inner layer body (11), a pressing plate (4) is arranged outside the guide pipe (7), the pressing plate (4) can move up and down along the axis of the guide pipe (7), the bottom of the pressing plate (4) abuts against the upper end of the circular ring cylinder (3), when the pressing plate (4) moves downward and presses the circular ring cylinder (3), the circular ring cylinder (3) is compressed, the air pressure in the cavity (13) is increased, when the pressing plate (4) moves upward, the circular ring cylinder (3) rebounds, and the air pressure in the cavity (13) is reduced.

2. A soft pack bottle as defined in claim 1, wherein: An annular groove one (21) is arranged at the upper end of the bottom cover (2), the circular ring cylinder (3) comprises an annular part two (32) located below, the annular part two (32) is inserted into the annular groove one (21), the bottom surface of the annular part two (32) abuts against the bottom surface of the annular groove one (21) to form a seal, and the upper end of the through hole (22) is in communication with the bottom of the annular groove one (21).

3. A soft pack bottle as defined in claim 2, wherein: Hook grooves (211) are arranged at both sides of the bottom of the annular groove one (21), and extension parts two (321) are arranged at both sides of the bottom of the annular part two (32), the extension parts two (321) are inserted into the corresponding hook grooves (211).

4. A soft pack bottle as defined in claim 1, wherein: The circular ring cylinder (3) comprises an annular part one (31) located at the upper end, an extension part one (311) is arranged at the top of the annular part one (31), a recess (42) is arranged at the bottom of the pressing plate (4), and the extension part one (311) is clamped into the recess (42).

5. A soft pack bottle as defined in claim 4, wherein: The pressing plate (4) comprises a convex ring (41) located at the bottom, the bottom cover (2) comprises a circular ring (24) located above, the inner circular surface of the annular part one (31) is attached to the outer circular surface of the convex ring (41), and the outer circular surface of the annular part one (31) is attached to the inner circular surface of the circular ring (24).

6. A soft pack bottle as defined in claim 5, wherein: An annular groove two (23) is arranged at the upper end of the bottom cover (2), and the convex ring (41) can extend in and out along the inner wall of the annular groove two (23).

7. A soft pack bottle as defined in claim 1, wherein: A spring (8) is sleeved on the outer wall of the guide pipe (7), the upper end of the spring (8) abuts against the bottom of the pressing plate (4), and the lower end of the spring (8) abuts against the top of the bottom cover (2).

8. A soft pack bottle as defined in claim 1, wherein: The top cover (6) comprises a lower top cover (62), the conduit (7) is inserted into the lower top cover (62), the upper portion of the conduit (7) is provided with a flange (71), the flange (71) is located above the lower top cover (62), and the lower top cover (62) can abut against the lower end surface of the flange (71) when being moved upward.

9. A soft pack bottle as defined in claim 1, wherein: The bottom of the conduit (7) is connected with a connecting plate (9), and the upper end surface of the connecting plate (9) is attached to the bottom surface of the bottom cover (2).

10. A method of using a soft pack bottle comprising the soft pack bottle of any one of claims 1-9, characterized by: The use method is as follows: ①The top cover (6) is rotated downward, the bottom of the top cover (6) abuts against the pressing plate (4) and pushes the pressing plate (4) downward, the bottom of the pressing plate (4) compresses the circular ring cylinder (3), the circular ring cylinder (3) is deformed to be shrunk, so that the air pressure in the closed cavity formed by the circular ring cylinder (3), the through hole (22) and the cavity (13) is increased; ②The top cover (6) is rotated upward to the limit position, the pressing plate (4) is moved upward, and the circular ring cylinder (3) returns to the original state, so that the air pressure in the closed cavity formed by the circular ring cylinder (3), the through hole (22) and the cavity (13) is reduced.

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