Perfume bottle filling structure

Abstract

The present invention discloses a liquid filling structure for a perfume bottle, which comprises an inner bottle and a lower shell, wherein the upper end of the inner bottle is provided with a spray head assembly, the lower shell is sleeved on the outer side of the inner bottle, the bottom end of the lower shell is fixedly connected with a liquid inlet assembly, the lower end of the spray head assembly is connected with a piston assembly, a one-way valve assembly is provided on the piston assembly, and a liquid filling rod is provided downwardly on the piston assembly, the liquid filling rod passes through the lower end of the inner bottle and docks with the liquid inlet assembly. The present invention connects the piston assembly to the lower end of the spray head assembly, arranges the liquid filling rod under the piston assembly, and docks the lower end of the liquid filling rod with the liquid inlet assembly fixed in the lower shell, drives the liquid filling rod and the piston assembly to move downward through the lower shell, and then discharges the gas between the piston assembly and the bottom end of the inner bottle through the one-way valve assembly, and finally utilizes the negative pressure between the piston assembly and the bottom end of the inner bottle to fill the liquid in the liquid filling mother bottle into the inner bottle, so that the liquid filling is simple and convenient, and the liquid filling efficiency of the product is improved.

Description

Technical Field

[0001] The invention relates to the technical field of perfume bottles, in particular to a liquid filling structure for a perfume bottle. Background Art

[0002] With the development of economy and the improvement of people's living standards, people pay more and more attention to the quality of life. In order to attract more attention, especially women, they often use perfume. As a high-end daily necessity, the outer packaging of perfume is relatively exquisite. At present, perfume bottles generally include a bottle body, a bottle cap, and a spray head mechanism. Some bottles are composed of an inner bottle and an outer bottle, so that the perfume is not easy to volatilize and better protect the perfume in the bottle.

[0003] When the perfume bottle is used up, liquid can be filled into the perfume bottle through the filling mother bottle. However, when the perfume bottle is filled with liquid, the filling nozzle of the filling mother bottle is prone to deviation, and a large pressing force is required to fill the liquid into the perfume bottle, which is not conducive to improving the filling efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a perfume bottle filling structure that is convenient and efficient in filling liquid in view of the shortcomings of the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a perfume bottle filling structure, which includes an inner bottle and a lower shell, the upper end of the inner bottle is provided with a spray head assembly, the lower shell is sleeved on the outer side of the inner bottle, the bottom end of the lower shell is fixedly connected with a liquid inlet assembly, the lower end of the spray head assembly is connected with a piston assembly, the piston assembly is provided with a one-way valve assembly, the piston assembly is provided with a filling rod downward, the filling rod passes through the lower end of the inner bottle and is connected to the liquid inlet assembly.

[0006] In one of the embodiments, a first suction pipe is connected to the lower end of the spray head assembly, and the first suction pipe runs through the piston assembly.

[0007] In one embodiment, the piston assembly includes a piston seat and a vacuum piston fixed on the piston seat, the filling rod is connected to the lower middle part of the piston seat, the one-way valve assembly is placed on the vacuum piston, a first exhaust hole is opened on the piston seat, and the one-way valve assembly is matched with the first exhaust hole.

[0008] In one embodiment, the spray head assembly includes an end cover, a pressing head, a pump body and a pump seat, the end cover is fixedly arranged on the upper end of the inner bottle, the pressing head is connected to the pump body, the pump body is fixed in the pump seat, the pump seat is fixed on the end cover, the first liquid suction tube is connected to the lower end of the pump seat, and the first liquid suction tube passes through the vacuum piston and the piston seat and then extends to the bottom end of the inner bottle.

[0009] In one embodiment, the spray head assembly is integrally connected to the piston assembly, and a second liquid suction tube is connected to the lower end of the piston assembly.

[0010] In one embodiment, the one-way valve assembly includes a first movable pressure plate, a limit block and a floating valve ball. The limit block is fitted above the piston assembly, the first movable pressure plate is arranged above the limit block, an exhaust chamber is formed between the limit block and the piston assembly, the floating valve ball is clamped in the exhaust chamber, a second exhaust hole is opened at the piston assembly matching the exhaust chamber, and the floating valve ball is placed above the second exhaust hole.

[0011] In one embodiment, the spray head assembly includes an end cover, a pressing head, a pump body and a pump seat, the lower end of the pump seat is integrally connected to the piston assembly, the end cover is fixedly arranged on the upper end of the inner bottle, the pressing head is connected to the pump body, the pump body is fixed in the pump seat, one end of the second pipette is connected to the lower end of the piston assembly, the second pipette is of a spiral structure, and the other end of the second pipette extends to the bottom end of the inner bottle.

[0012] In one embodiment, the one-way valve assembly includes a second movable pressure plate and a floating valve core, the second movable pressure plate is arranged above the piston assembly, a third exhaust hole is opened on the piston assembly, and the floating valve core is clamped in the third exhaust hole.

[0013] In one embodiment, the spray head assembly includes an end cover, a pressing head, a pump body and a pump seat, the lower end of the pump seat is integrally connected to the piston assembly, the end cover is fixedly arranged on the upper end of the inner bottle, the pressing head is connected to the pump body, the pump body is fixed in the pump seat, one end of the second pipette is connected to the lower end of the piston assembly, the second pipette is of a spiral structure, and the other end of the second pipette extends to the bottom end of the inner bottle.

[0014] In one of the embodiments, it also includes an upper shell, which is sleeved on the outer side of the spray head assembly.

[0015] In one of the embodiments, a liquid filling pipe is provided in the liquid filling rod, and a liquid filling transverse hole penetrating through the side wall of the liquid filling rod is opened at the upper end of the liquid filling pipe.

[0016] In one of the embodiments, a docking portion is provided at the lower end of the inner bottle, a docking groove is provided in the middle of the docking portion, and the filling rod is arranged through the docking groove.

[0017] In one of the embodiments, a second sealing ring is fixedly provided on the lower end of the inner bottle and the inner wall of the docking groove, and the outer side of the filling rod is arranged in contact with the second sealing ring.

[0018] In one embodiment, the liquid inlet assembly includes a tail cover, and the lower end of the liquid filling rod is connected to the tail cover.

[0019] In one of the embodiments, a dynamic sealing ring is provided at the bottom end of the tail cover, a liquid inlet hole is provided on the dynamic sealing ring, a liquid inlet rod is provided above the dynamic sealing ring, a liquid inlet pipe is provided on the liquid inlet rod, the liquid inlet hole is connected to the liquid inlet pipe, a liquid inlet horizontal hole is provided at the upper end of the liquid inlet pipe and passes through the side wall of the liquid inlet rod, a liquid filling groove is provided at the lower end of the liquid filling rod, the liquid filling groove is connected to the liquid filling pipe, a return spring is sleeved on the outer side of the liquid inlet rod, a static sealing ring is provided below the liquid filling rod, and the static sealing ring is sleeved on the outer side of the upper end of the liquid inlet rod.

[0020] In one embodiment, a threaded portion is provided on the outer side of the tail cover, a fixing groove is provided below the docking portion, a threaded protrusion is provided on the inner side wall of the fixing groove, and the tail cover is buckled on the inner bottle through the threaded portion and the threaded protrusion.

[0021] In summary, the liquid filling structure of the perfume bottle of the present invention connects the piston assembly to the lower end of the spray head assembly, arranges a liquid filling rod under the piston assembly, and docks the lower end of the liquid filling rod with the liquid inlet assembly fixed in the lower shell. The liquid filling rod and the piston assembly are driven downward by the lower shell, and the gas between the piston assembly and the bottom end of the inner bottle is discharged through the one-way valve assembly. Finally, the negative pressure between the piston assembly and the bottom end of the inner bottle is used to fill the liquid in the liquid filling mother bottle into the inner bottle. The filling is simple and convenient, and the filling efficiency of the product is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a first embodiment of the liquid filling structure of a perfume bottle of the present invention;

[0023] Figure 2 It is a structural cross-sectional view of the first embodiment of the liquid filling structure of a perfume bottle of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the first embodiment of the liquid filling structure of the perfume bottle of the present invention after the upper shell, the inner bottle and the lower shell are hidden;

[0025] Figure 4 This is a schematic diagram of the structure of the first embodiment of the liquid filling structure of the perfume bottle of the present invention after the upper shell, the inner bottle, the lower shell and the static sealing ring are hidden;

[0026] Figure 5 It is a schematic structural diagram of the upper shell in the first embodiment of the liquid filling structure of the perfume bottle of the present invention;

[0027] Figure 6 It is a structural schematic diagram of a second embodiment of the liquid filling structure of a perfume bottle of the present invention;

[0028] Figure 7 It is a structural cross-sectional view of a second embodiment of the liquid filling structure of a perfume bottle of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the second embodiment of the liquid filling structure of a perfume bottle of the present invention after the upper shell, the inner bottle and the lower shell are hidden;

[0030] Fig. 9 It is a schematic structural diagram of the inner bottle in the second embodiment of the liquid filling structure of the perfume bottle of the present invention;

[0031] Fig.10 It is a schematic structural diagram of the lower shell in the second embodiment of the liquid filling structure of the perfume bottle of the present invention;

[0032] Fig.11 It is a structural cross-sectional view of a third embodiment of the liquid filling structure of a perfume bottle of the present invention;

[0033] Fig.12 This is a schematic diagram of the structure of the third embodiment of the liquid filling structure of a perfume bottle of the present invention after the upper shell, the inner bottle and the lower shell are hidden;

[0034] Fig.13 It is a schematic structural diagram of the inner bottle in the third embodiment of the liquid filling structure of the perfume bottle of the present invention;

[0035] Fig.14 It is a schematic structural diagram of the end cover in the third embodiment of the liquid filling structure of a perfume bottle of the present invention;. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figures 1 to 14 As shown, the liquid filling structure of the perfume bottle of the present invention comprises an upper shell 100, an inner bottle 200 and a lower shell 300. The upper end of the inner bottle 200 is provided with a nozzle assembly 400, and the nozzle assembly 400 is used to spray perfume; the upper shell 100 is sleeved on the outer side of the nozzle assembly 400, and the lower shell 300 is sleeved on the outer side of the inner bottle 200. The bottom end of the lower shell 300 is fixedly connected with a liquid inlet assembly 500, and the liquid inlet assembly 500 is used to dock with an external liquid filling mother bottle, so as to replenish perfume or other liquid into the inner bottle 200; the lower end of the nozzle assembly 400 is connected with a piston assembly 600, and the piston assembly 600 is provided with a piston assembly 600. A one-way valve assembly 700 is arranged, and a filling rod 610 is arranged downwardly in the middle of the piston assembly 600. The filling rod 610 passes through the lower end of the inner bottle 200 and is connected to the liquid inlet assembly 500. A filling pipe 611 is arranged in the filling rod 610, and a filling transverse hole 612 that passes through the side wall of the filling rod 610 is opened at the upper end of the filling pipe 611; the lower shell 300 moves downwardly relative to the inner bottle 200, thereby driving the filling rod 610 to move downwardly, so that the piston assembly 600 moves downwardly along the direction of the inner bottle 200, so that the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged from the one-way valve assembly 700.

[0040] The lower end of the spray head assembly 400 is connected to a first suction pipe 710 , which passes through the piston assembly 600 and extends to the bottom end of the inner bottle 200 to spray the perfume in the inner bottle 200 through the spray head assembly 400 .

[0041] In another embodiment, the spray head assembly 400 is integrally connected to the piston assembly 600, and a second liquid suction tube 720 is connected to the lower end of the piston assembly 600. The second liquid suction tube 720 extends to the bottom end of the inner bottle 200 to spray the perfume in the inner bottle 200 through the spray head assembly 400.

[0042] In one of the embodiments, a first sealing ring 620 is fixedly connected to the periphery of the piston assembly 600, so that when the piston assembly 600 moves downward or upward along the inner bottle 200, the first sealing ring 620 can ensure the sealing between the piston assembly 600 and the inner bottle 200, and prevent the gas in the inner bottle 200 or the gas outside the inner bottle 200 from passing through the gap between the piston assembly 600 and the inner bottle 200.

[0043] In one embodiment, a docking portion 210 is provided at the lower end of the inner bottle 200, a docking groove 211 is opened in the middle of the docking portion 210, the filling rod 610 is arranged through the docking groove 211, and a second sealing ring 220 is fixedly provided on the inner side wall of the docking groove 211 at the lower end of the inner bottle 200, and the outer side of the filling rod 610 is arranged in contact with the second sealing ring 220. When the filling rod 610 moves downward or upward, the second sealing ring 220 ensures the sealing between the filling rod 610 and the lower end of the inner bottle 200, thereby preventing external gas from entering the space between the piston assembly 600 and the bottom end of the inner bottle 200.

[0044] In one embodiment, the liquid inlet assembly 500 includes a tail cover 510, the lower end of the liquid filling rod 610 is connected to the tail cover 510, the tail cover 510 is a hollow cavity, the bottom end of the tail cover 510 is provided with a dynamic sealing ring 520, the dynamic sealing ring 520 is provided with a liquid inlet hole 521, and a liquid inlet rod 530 is provided above the dynamic sealing ring 520. The cross-section of the liquid inlet rod 530 is an inverted "T"-shaped structure, and the liquid inlet rod 530 is provided with a liquid inlet pipe 531. The liquid inlet hole 521 is connected to the liquid inlet pipe 531, and the upper end of the liquid inlet pipe 531 is provided with a liquid inlet transverse hole 532 that penetrates the side wall of the liquid inlet rod 530. The lower end of the liquid filling rod 610 is provided with a liquid filling groove 613, and the liquid filling groove 613 is connected to the liquid filling pipe 611. The outer side of the liquid inlet rod 530 is sleeved with a return spring 540, and a static sealing ring 550 is provided below the liquid filling rod 610. The static sealing ring 550 is sleeved on the outer side of the upper end of the liquid inlet rod 530. When the product is in a non-liquid-filled state, the static sealing ring 550 is arranged in close contact with the liquid inlet transverse hole 532, so that external gas or liquid will not enter the liquid filling rod 610 through the liquid inlet rod 530, and at the same time, it is prevented that the perfume in the inner bottle 200 will not enter the liquid inlet rod 530 through the liquid filling rod 610 to cause product leakage; when the product is in a liquid-filled state, the liquid-filled mother bottle applies force to the dynamic sealing ring 520, so that the liquid inlet rod 530 moves upward, and the return spring 540 is in a compressed state. The liquid inlet transverse hole 532 at the upper end of the liquid inlet rod 530 is separated from the static sealing ring 550 and enters the liquid filling groove 613, so that the perfume in the liquid filling mother bottle enters the inner bottle 200 through the liquid inlet pipe 531, the liquid inlet transverse hole 532, the liquid filling pipe 611 and the liquid filling transverse hole 612; when the liquid filling mother bottle is separated from the liquid inlet and outlet assembly 500, the liquid inlet rod 530 returns to its original position under the restoring force of the return spring 540, so that the liquid inlet transverse hole 532 is sealed by the static sealing ring 550 again.

[0045] In one embodiment, a threaded portion 511 is provided on the outer side of the tail cover 510, a fixing groove 212 is provided below the docking portion 210, and a threaded protrusion 213 is provided on the inner side wall of the fixing groove 212. The tail cover 510 is buckled on the inner bottle 200 through the threaded portion 511 and the threaded protrusion 213, so that the lower shell 300 can be firmly fixed to the inner bottle 200 when the product is in a non-liquid filling state; when the product needs to be filled with liquid, the lower shell 300 is rotated so that the tail cover 510 is gradually separated from the bottom end of the inner bottle 200, and the lower shell 300 continues to move downward, so that the lower shell 300 drives the filling rod 610 to move downward, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged to facilitate the filling operation.

[0046] When the present invention is specifically filling with liquid, the liquid-filled mother bottle is aligned with the liquid-filling assembly 500 and the liquid-filling rod 530 is pushed into the liquid-filling groove 613 of the liquid-filling rod 610. The lower shell 300 moves upward to drive the liquid-filling rod 610 to move upward, so that the piston assembly 600 moves away from the bottom end of the inner bottle 200. Through the negative pressure between the piston assembly 600 and the bottom end of the inner bottle 200, the perfume in the liquid-filled mother bottle enters the space between the piston assembly 600 and the bottom end of the inner bottle 200 through the liquid-filling rod 530 and the liquid-filling rod 610. When the lower shell 300 moves upward to abut against the lower end of the inner bottle 200, the liquid-filling operation of the inner bottle 200 is completed, thereby effectively improving the liquid-filling efficiency of the product.

[0047] In order to make the technical solution of the present invention more clear, several preferred embodiments are described below.

[0048] Embodiment 1

[0049] The liquid filling structure of the perfume bottle of the present invention comprises an upper shell 100, an inner bottle 200 and a lower shell 300. The upper end of the inner bottle 200 is provided with a nozzle assembly 400, and the nozzle assembly 400 is used to spray perfume; the upper shell 100 is sleeved on the outer side of the nozzle assembly 400, and the lower shell 300 is sleeved on the outer side of the inner bottle 200. The bottom end of the lower shell 300 is fixedly connected with a liquid inlet assembly 500, and the liquid inlet assembly 500 is used to dock with an external liquid filling mother bottle, so as to replenish perfume into the inner bottle 200; the lower end of the nozzle assembly 400 is connected with a piston assembly 600, and the piston assembly 600 is provided with The one-way valve assembly 700, the piston assembly 600 includes a piston seat 601 and a vacuum piston 602 fixed on the piston seat 601, the filling rod 610 is connected to the lower middle part of the piston seat 601, the one-way valve assembly 700 is placed on the vacuum piston 602, and a first exhaust hole 6011 is opened on the piston seat 601. The one-way valve assembly 700 is matched with the first exhaust hole 6011, and a first sealing ring 620 is fixedly connected to the periphery of the vacuum piston 602, so that when the vacuum piston 602 moves downward or upward, the sealing performance between the vacuum piston 602 and the inner bottle 200 is guaranteed.

[0050] The spray head assembly 400 includes an end cover 411, a pressing head 421, a pump body 431 and a pump seat 441. The end cover 411 is fixedly arranged on the upper end of the inner bottle 200. The pressing head 421 is connected to the pump body 431. The pump body 431 is fixed in the pump seat 441. The pump seat 441 is fixed on the end cover 411. The first liquid suction pipe 710 is connected to the lower end of the pump seat 441. The first liquid suction pipe 710 extends to the bottom end of the inner bottle 200 after passing through the vacuum piston 602 and the piston seat 601. The piston assembly 600 is provided with a third sealing ring 603 on the periphery of the first liquid suction pipe 710. The third sealing ring 603 ensures that the sealing performance between the first liquid suction pipe 710 and the piston assembly 600 can be ensured when the piston assembly 600 moves back and forth along the direction of the first liquid suction pipe 710, so as to prevent external gas from entering the space between the piston assembly 600 and the bottom end of the inner bottle 200.

[0051] In this embodiment, the outer side of the tail cover 510 does not have a threaded portion 511 structure, and an annular first buckle 231 is provided on the upper end of the outer side of the inner bottle 200, and an annular first groove 311 is opened on the inner upper end of the lower shell 300. The first buckle 231 is clamped in the first groove 311, so that the lower shell 300 can be firmly connected to the inner bottle 200 when the product is in a non-liquid filling state; when the product needs to be filled with liquid, the first groove 311 of the lower shell 300 is disengaged from the first buckle 231 of the inner bottle 200 by external force, and the lower shell 300 continues to move downward, thereby causing the lower shell 300 to drive the filling rod 610 to move downward, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged from the one-way valve assembly 700 to facilitate the filling operation.

[0052] Embodiment 2

[0053] The liquid filling structure of the perfume bottle of the present invention comprises an upper shell 100, an inner bottle 200 and a lower shell 300. The upper end of the inner bottle 200 is provided with a nozzle assembly 400, and the nozzle assembly 400 is used to spray perfume; the upper shell 100 is sleeved on the outer side of the nozzle assembly 400, and the lower shell 300 is sleeved on the outer side of the inner bottle 200. The bottom end of the lower shell 300 is fixedly connected with a liquid inlet assembly 500, and the liquid inlet assembly 500 is used to dock with an external liquid filling mother bottle, so as to replenish perfume into the inner bottle 200; the lower end of the nozzle assembly 400 is connected with a piston assembly 600, and the piston assembly 600 is provided with a one-way valve assembly 7 00, the spray head assembly 400 is integrally connected to the piston assembly 600, the spray head assembly 400 includes an end cover 412, a pressing head 422, a pump body 432 and a pump seat 442, the lower end of the pump seat 442 is integrally connected to the piston assembly 600, the end cover 412 is fixedly arranged on the upper end of the inner bottle 200, the pressing head 422 is connected to the pump body 432, the pump body 432 is fixed in the pump seat 442, the lower end of the piston assembly 600 is connected to a second liquid suction tube 720, the second liquid suction tube 720 is a spiral structure, and the other end of the second liquid suction tube 720 extends to the bottom end of the inner bottle 200.

[0054] The one-way valve assembly 700 includes a first movable pressure plate 711, a limit block 721 and a floating valve ball 731. The limit block 721 is fitted above the piston assembly 600. The first movable pressure plate 711 is arranged above the limit block 721. An exhaust chamber 701 is formed between the limit block 721 and the piston assembly 600. The floating valve ball 731 is clamped in the exhaust chamber 701. A second exhaust hole 604 is opened at the piston assembly 600 matching the exhaust chamber 701. The floating valve ball 731 is placed above the second exhaust hole 604. The specific gravity of the floating valve ball 731 is greater than the specific gravity of the perfume in the inner bottle 200 to prevent the one-way valve assembly 700 from being flushed open by the perfume remaining in the inner bottle 200 to open the second exhaust hole 604 and cause perfume leakage when the piston assembly 600 moves downward to the bottom of the inner bottle 200.

[0055] In this embodiment, the outer side of the tail cover 510 does not have a threaded portion 511 structure, the lower end of the inner bottle 200 is provided with a docking portion 210, the bottom end of the inner bottle 200 and the surrounding side of the docking portion 210 are surrounded by an annular accommodating groove 240, and the second liquid pipette 720 is matched and arranged above the accommodating groove 240; the upper end of the outer side of the inner bottle 200 is provided with an annular second clip 232, and the upper end of the inner side of the lower shell 300 is provided with an annular second clip groove 312, and the second clip 232 is clamped in the second clip groove 312, so that when the product is in a non-liquid-filled state, the lower shell 300 can be stably fixed to the inner bottle 200. When the product needs to be filled with liquid, the second slot 312 of the lower shell 300 is disengaged from the second buckle 232 of the inner bottle 200 by external force, and the lower shell 300 continues to move downward, thereby causing the lower shell 300 to drive the filling rod 610 to move downward, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged from the floating valve ball 731 to facilitate the filling operation. At the same time, one end of the second liquid pipette 720 will be compressed into the accommodating groove 240, and the residual perfume in the accommodating groove 240 will enter the second liquid pipette 720, thereby preventing external gas from entering the space between the piston assembly 600 and the bottom end of the inner bottle 200.

[0056] Specifically, in this embodiment, a port (not shown) is provided at the lower end of the end cover 412, and the cross-sectional diameter of the pump seat 442 is smaller than the diameter of the port, so that the pressing head 422, the pump body 432 and the pump seat 442 can move back and forth through the port as the piston assembly 600 moves. The first movable pressure plate 711 is an annular structure, and the outer diameter of the first movable pressure plate 711 is larger than the diameter of the port, so that when the first movable pressure plate 711 moves upward, the lower end of the end cover 412 can limit the first movable pressure plate 711 to prevent the first movable pressure plate 711 from continuing to move upward and affecting the tightness of the docking with the limit block 721; when the product needs to be filled with liquid , the filling rod 610 drives the piston assembly 600 to move downward. At this time, there is a gap between the first movable pressing plate 711 of the one-way valve assembly 700 and the limit block 721, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged from the exhaust chamber 701 to facilitate the filling operation; when the filling rod 610 drives the piston assembly 600 to move upward to complete the filling, at this time, the upper end of the first movable pressing plate 711 abuts against the lower end of the end cover 412, and the lower end of the first movable pressing plate 711 is close to the limit block 721, thereby sealing the exhaust chamber 701, so that the perfume in the inner bottle 200 cannot leak out from the exhaust chamber 701, thereby improving product stability.

[0057] Embodiment 3

[0058] The liquid filling structure of the perfume bottle of the present invention comprises an upper shell 100, an inner bottle 200 and a lower shell 300. The upper end of the inner bottle 200 is provided with a nozzle assembly 400, and the nozzle assembly 400 is used to spray perfume; the upper shell 100 is sleeved on the outer side of the nozzle assembly 400, and the lower shell 300 is sleeved on the outer side of the inner bottle 200. The bottom end of the lower shell 300 is fixedly connected with a liquid inlet assembly 500, and the liquid inlet assembly 500 is used to dock with an external liquid filling mother bottle, so as to replenish perfume into the inner bottle 200; the lower end of the nozzle assembly 400 is connected with a piston assembly 600, and the piston assembly 600 is provided with a one-way valve assembly 700. The nozzle assembly 400 is integrally connected with the piston assembly 600, and the nozzle assembly 400 comprises an end cover 413, a pressing head 42 3. Pump body 433 and pump seat 443. The lower end of the pump seat 443 is integrally connected to the piston assembly 600. The end cover 413 is fixedly arranged on the upper end of the inner bottle 200. The pressing head 423 is connected to the pump body 433. The pump body 433 is fixed in the pump seat 443. The lower end of the piston assembly 600 is connected with a second suction pipe 720. The second suction pipe 720 is a spiral structure. The other end of the second suction pipe 720 extends to the bottom end of the inner bottle 200. An annular third clip 4131 is convexly provided on the inner side of the lower end of the end cover 413. An annular third clip groove 250 is provided on the outer side of the upper end of the inner bottle 200. The third clip 4131 is clamped in the third clip groove 250, so that the end cover 413 is firmly fixed on the inner bottle 200.

[0059] The one-way valve assembly 700 includes a second movable pressing plate 712 and a floating valve core 722. The second movable pressing plate 712 is arranged above the piston assembly 600. The piston assembly 600 is provided with a third exhaust hole 605. The floating valve core 722 is clamped in the third exhaust hole 605. The specific gravity of the floating valve core 722 is smaller than the specific gravity of the perfume in the inner bottle 200, so as to prevent the one-way valve assembly 700 from being flushed open by the perfume remaining in the inner bottle 200 when the piston assembly 600 moves downward to the bottom of the inner bottle 200, thereby preventing the perfume from leaking. The floating valve core 722 includes a floating rod 7221 and a sealing sleeve 7222 covering the outer side of the floating rod 7221. The floating rod 7221 can be constructed of a foam material to facilitate the floating valve core 722 to float on the perfume in the inner bottle 200. The sealing sleeve 7222 can be constructed of a silicone material to facilitate sealing the third exhaust hole 605 and ensure the sealing performance of the inner bottle 200.

[0060] A threaded portion 511 is provided on the outer side of the tail cover 510, a fixing groove 212 is provided below the docking portion 210, and a threaded protrusion 213 is provided on the inner side wall of the fixing groove 212. The tail cover 510 is buckled with the threaded protrusion 213 through the threaded portion 511, so that the lower shell 300 can be firmly fixed to the inner bottle 200 when the product is in a non-liquid filling state; when the product needs to be filled with liquid, the lower shell 300 is rotated so that the tail cover 510 is gradually separated from the bottom end of the inner bottle 200, and the lower shell 300 continues to move downward, so that the lower shell 300 drives the filling rod 610 to move downward, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged from the floating valve core 722 to facilitate the filling operation.

[0061] Specifically, in the present embodiment, a limiting convex ring 4132 is provided on the inner side of the end cover 413, and the pump seat 443 penetrates the limiting convex ring 4132. The cross-sectional diameter of the pump seat 443 is smaller than the inner diameter of the limiting convex ring 4132, so that the pressing head 423, the pump body 433 and the pump seat 443 can move back and forth with the movement of the piston assembly 600. The second movable pressure plate 712 is an annular structure, and the outer diameter of the second movable pressure plate 712 is larger than the inner diameter of the limiting convex ring 4132, so that when the second movable pressure plate 712 moves upward, the lower end of the limiting convex ring 4132 can limit the second movable pressure plate 712, so as to prevent the second movable pressure plate 712 from continuing to move upward and affecting the tight connection with the piston assembly 600. When the product needs to be filled with liquid, the filling rod 610 drives the piston assembly 600 to move downward. At this time, there is a gap between the second movable pressure plate 712 of the one-way valve assembly 700 and the piston assembly 600, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged from the floating valve core 702 to facilitate the filling operation; when the filling rod 610 drives the piston assembly 600 to move upward to complete the filling, at this time, the upper end of the second movable pressure plate 712 abuts against the lower end of the limiting convex ring 4132, and the lower end of the second movable pressure plate 712 is close to the piston assembly 600, thereby sealing the third exhaust hole 605, so that the perfume in the inner bottle 200 cannot leak out from the third exhaust hole 605, thereby improving the stability of the product.

[0062] In summary, the liquid filling structure of the perfume bottle of the present invention connects the piston assembly 600 to the lower end of the spray head assembly 400, and sets a liquid filling rod 610 below the piston assembly 600, and connects the lower end of the liquid filling rod 610 with the liquid inlet assembly 500 fixed in the lower shell 300. The liquid filling rod 610 and the piston assembly 600 are driven downward by the lower shell 300, and the gas between the piston assembly 600 and the bottom end of the inner bottle 200 is discharged through the one-way valve assembly 700. Finally, the negative pressure between the piston assembly 600 and the bottom end of the inner bottle 200 is used to fill the liquid in the liquid filling mother bottle into the inner bottle 200. The filling is simple and convenient, and the filling efficiency of the product is effectively improved.

[0063] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A perfume bottle filling structure, characterized in that: The invention comprises an inner bottle and a lower shell, the upper end of the inner bottle is provided with a spray head assembly, the lower shell is sleeved on the outer part of the inner bottle, the bottom end of the lower shell is fixedly connected with a liquid inlet assembly, the lower end of the spray head assembly is connected with a piston assembly, the piston assembly is provided with a one-way valve assembly, the piston assembly is downwardly provided with a liquid filling rod, the liquid filling rod passes through the lower end of the inner bottle and is connected with the liquid inlet assembly, the spray head assembly and the piston assembly are integrally connected, the lower end of the piston assembly is connected with a second liquid suction pipe, the one-way valve assembly comprises a first movable pressing plate, a limit block and a floating valve ball, the limit block is fitted above the piston assembly, the first movable pressing plate is arranged above the limit block, an exhaust chamber is formed between the limit block and the piston assembly, the floating valve ball is clamped in the exhaust chamber, a second exhaust hole is opened at the matching exhaust chamber of the piston assembly, the floating valve ball is placed above the second exhaust hole, the spray head assembly comprises an end cover, a pressing head, a pump body and a pump seat, the lower end of the pump seat is integrally connected with the piston assembly, the end The cap is fixedly arranged at the upper end of the inner bottle, the pressing head is connected to the pump body, the pump body is fixed in the pump seat, one end of the second liquid suction pipe is communicated with the lower end of the piston assembly, the second liquid suction pipe is a spiral structure, the other end of the second liquid suction pipe extends to the bottom end of the inner bottle, the lower end of the inner bottle is provided with a docking portion, the middle of the docking portion is provided with a docking groove, the filling rod is arranged through the docking groove, the liquid inlet assembly comprises a tail cover, the lower end of the filling rod is connected with the tail cover, the bottom end of the tail cover is provided with a dynamic sealing ring, the dynamic sealing ring is provided with a liquid inlet hole, the liquid inlet rod is provided above the dynamic sealing ring, the liquid inlet pipe is provided on the liquid inlet rod, the liquid inlet hole is communicated with the liquid inlet pipe, the upper end of the liquid inlet pipe is provided with a liquid inlet horizontal hole that passes through the side wall of the liquid inlet rod, the lower end of the liquid filling rod is provided with a liquid filling groove, the liquid filling groove is communicated with the liquid filling pipe, a return spring is sleeved on the outer side of the liquid inlet rod, a static sealing ring is provided below the liquid filling rod, and the static sealing ring is sleeved on the outer side of the upper end of the liquid inlet rod.

2. The perfume bottle filling structure according to claim 1, characterized in that: It also includes an upper shell, which is sleeved on the outer side of the spray head assembly.

3. The perfume bottle filling structure according to claim 1, characterized in that: A liquid filling pipe is arranged inside the liquid filling rod, and a liquid filling transverse hole penetrating through the side wall of the liquid filling rod is opened at the upper end of the liquid filling pipe.

4. The perfume bottle filling structure according to claim 1, characterized in that: A second sealing ring is fixedly arranged at the lower end of the inner bottle on the inner side wall of the docking groove, and the outer side of the liquid filling rod is arranged in contact with the second sealing ring.

5. The perfume bottle filling structure according to claim 1, characterized in that: The outer side of the tail cover is provided with a threaded portion, a fixing groove is provided below the docking portion, a threaded convex portion is provided on the inner side wall of the fixing groove, and the tail cover is buckled on the inner bottle through the threaded portion and the threaded convex portion.

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