Double-spring bayonet pump and fluid container with double-spring bayonet pump

Abstract

The utility model discloses a double-spring bayonet pump and a fluid container with the double-spring bayonet pump. The double-spring bayonet pump comprises a pump body, a valve body, a piston unit, a flow channel forming unit, an inner side spring, an outer side spring and an atomizing nozzle. The valve body is arranged to be used for opening and closing a bottom channel of the pump body, the piston unit is installed in a pump cavity of the pump body in a vertically movable mode, the bottom of the pump body can stretch into the piston channel, and the flow channel forming unit is installed in the piston channel of the piston unit in a vertically movable mode. The bottom of the flow channel forming unit can be attached to and separated from the piston unit, the bottom and the top of the inner side spring abut against the piston unit and the flow channel forming unit respectively, the bottom of the outer side spring is kept still relative to the pump body, the top of the outer side spring abuts against the flow channel forming unit, and the atomizing nozzle is installed on the flow channel forming unit. A nozzle channel of the atomizing nozzle is communicated with the fluid channel, and the buckle is fixedly arranged on the pump body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spray pump, in particular to a double-spring bayonet pump and a fluid container with the double-spring bayonet pump. BACKGROUND

[0002] In the daily chemical and pharmaceutical industries, spray pumps are widely used, and they are installed on bottle bodies to form packaging bottles. For example, a spray pump is disclosed in a Chinese utility model patent with the authorization announcement number CN219111941U, which is installed on a bottle body, and when a user presses the spray pump, the spray pump pumps out perfume in the bottle body. The overall height size of the existing spray pump is relatively large, which leads to a high height size of the packaging bottle, and it is difficult to be miniaturized. In addition, the bottom of the pump chamber of the spray pump is mostly exposed to the outside of the bayonet part, and when the bayonet part installs the spray pump on the bottle opening of the bottle body, the user can see the obvious pump chamber through the bottle body, which affects the overall appearance of the packaging bottle. SUMMARY

[0003] One object of the utility model is to provide a double-spring bayonet pump and a fluid container with the double-spring bayonet pump, wherein the double-spring bayonet pump has a smaller height size.

[0004] One object of the utility model is to provide a double-spring bayonet pump and a fluid container with the double-spring bayonet pump, wherein the size of the bottom of the pump body of the double-spring bayonet pump exposed to the buckle is smaller, which is beneficial to improve the appearance of the fluid container.

[0005] One object of the utility model is to provide a double-spring bayonet pump and a fluid container with the double-spring bayonet pump, wherein the inner spring and the outer spring of the double-spring bayonet pump cooperate with each other, which is beneficial to improve the explosive force of the double-spring bayonet pump.

[0006] According to one aspect of the utility model, the utility model provides a double-spring bayonet pump, which comprises:

[0007] A pump body has a pump cavity and a bottom channel communicated with the pump cavity;

[0008] A valve body is arranged to open and close the bottom channel of the pump body;

[0009] A piston unit is movably installed in the pump cavity of the pump body, wherein the piston unit has a piston channel, and the bottom of the pump body can extend into the piston channel;

[0010] a flow passage forming unit movably installed in the piston passage of the piston unit, wherein the flow passage forming unit has a fluid passage, a bottom of the flow passage forming unit is capable of abutting and leaving the piston unit, when the bottom of the flow passage forming unit abuts the piston unit, the fluid passage and the pump cavity are prevented from being communicated, when the bottom of the flow passage forming unit leaves the piston unit, the fluid passage and the pump cavity are allowed to be communicated;

[0011] an inner side spring, a bottom and a top of which abut the piston unit and the flow passage forming unit respectively;

[0012] an outer side spring, a bottom of which is kept stationary relative to the pump body, and a top of which abuts the flow passage forming unit;

[0013] an atomizing nozzle having a nozzle passage, wherein the atomizing nozzle is installed in the flow passage forming unit, and the nozzle passage and the fluid passage are communicated; and

[0014] a buckle, wherein the buckle is fixedly arranged in the pump body.

[0015] According to an embodiment of the present application, the flow passage forming unit comprises a flow passage forming part and a flow control part, the flow passage forming part comprises a main rod body and a shoulder body extending outward from a middle part of the main rod body, the main rod body has a rod body passage, the flow control part comprises a flow control seat and an assembly rod extending upward from the flow control seat, wherein the main rod body extends into the piston passage of the piston unit from top to bottom, the assembly rod is inserted into the rod body passage of the main rod body from bottom to top in a manner that the fluid passage is formed between the assembly rod and the main rod body, the flow passage forming unit is movably installed in the piston unit, the flow control seat is capable of abutting and leaving the piston unit, wherein the top of the inner side spring and the top of the outer side spring both abut the shoulder body.

[0016] According to an embodiment of the present application, the piston unit comprises a piston main body, a piston rod and a flow control ring, the piston rod extends upward from the piston main body, the piston passage penetrates through the piston main body and the piston rod, the flow control ring protrudes into the piston passage from a middle part of the piston rod, an inner diameter of the flow control ring is smaller than an outer diameter of the flow control seat, the flow control seat is capable of abutting and leaving the flow control ring, wherein the bottom of the inner side spring abuts the flow control ring.

[0017] According to an embodiment of the present application, the bottom of the main rod body extends to the flow control seat, and an inner wall of the flow control ring abuts an outer wall of the main rod body.

[0018] According to an embodiment of the present application, the flow channel forming portion comprises a protective ring, the protective ring extends downward from the periphery of the shoulder body.

[0019] According to an embodiment of the present application, the double-spring bayonet pump comprises a pump plug, the pump plug has a pump plug channel, the pump plug is installed in the top opening of the pump body, the outer diameter size of the piston body is greater than the inner diameter size of the pump plug channel of the pump plug, the outer diameter size of the piston rod is smaller than the inner diameter size of the pump plug channel of the pump plug, the top of the piston rod passes through the pump plug channel of the pump plug, the bottom of the outer side spring abuts against the pump plug, so that the bottom of the outer side spring is kept stationary relative to the pump body.

[0020] According to an embodiment of the present application, the flow channel forming portion comprises a protective ring, the protective ring extends downward from the periphery of the shoulder body, wherein the double-spring bayonet pump comprises a pump plug, the pump plug has an avoiding groove and a pump plug channel communicated with the avoiding groove, the pump plug is installed in the top opening of the pump body, the outer diameter size of the piston body is greater than the inner diameter size of the pump plug channel of the pump plug, the outer diameter size of the piston rod is smaller than the inner diameter size of the pump plug channel of the pump plug, wherein the top of the piston rod passes through the pump plug channel of the pump plug, wherein the protective ring extends into the avoiding groove of the pump plug, wherein the bottom of the outer side spring abuts against the pump plug, so that the bottom of the outer side spring is kept stationary relative to the pump body.

[0021] According to an embodiment of the present application, the pump plug comprises a leaning ring, an extending cylinder extending downward from the inner side of the leaning ring, and an abutting ring extending inward from the bottom of the extending cylinder, the avoiding groove is formed in the extending cylinder, and the pump plug channel is formed in the abutting ring, wherein the leaning ring leans against the edge of the top opening of the pump body, the extending cylinder and the abutting ring extend into the pump cavity of the pump body, and the bottom of the outer side spring abuts against the abutting ring.

[0022] According to an embodiment of the present application, the pump plug has an avoiding notch, the avoiding notch is located at the connection position of the extending cylinder and the abutting ring, and the piston body can extend into the avoiding notch of the pump plug.

[0023] According to another aspect of the present application, the present application further provides a fluid container with a double-spring bayonet pump, which comprises a bottle body and a double-spring bayonet pump, wherein the double-spring bayonet pump comprises:

[0024] a pump body having a pump cavity and a bottom channel communicated with the pump cavity;

[0025] a valve body arranged to open and close the bottom channel of the pump body.

[0026] a piston unit movably installed in the pump chamber of the pump body, wherein the piston unit has a piston passage, and a bottom of the pump body is capable of extending into the piston passage;

[0027] a flow passage forming unit movably installed in the piston passage of the piston unit, wherein the flow passage forming unit has a fluid passage, and a bottom of the flow passage forming unit is capable of abutting and leaving the piston unit, when the bottom of the flow passage forming unit abuts the piston unit, the fluid passage and the pump chamber are prevented from being communicated, and when the bottom of the flow passage forming unit leaves the piston unit, the fluid passage and the pump chamber are allowed to be communicated;

[0028] an inner side spring, a bottom and a top of which abut the piston unit and the flow passage forming unit, respectively;

[0029] an outer side spring, a bottom of which is kept stationary relative to the pump body, and a top of which abuts the flow passage forming unit;

[0030] an atomizing nozzle having a nozzle passage, wherein the atomizing nozzle is installed in the flow passage forming unit, and the nozzle passage and the fluid passage are communicated; and

[0031] a snap, wherein the snap is fixedly provided in the pump body, and the snap is snapped to a mouth of the bottle body. BRIEF DESCRIPTION OF DRAWINGS

[0032] FIG. 1A and FIG. 1B are respectively different direction sectional view schematics of a fluid container with a double spring snap pump according to a preferred embodiment of the present application.

[0033] FIG. 2A and FIG. 2B are respectively different perspective view schematics of a double spring snap pump of the fluid container according to the preferred embodiment of the present application.

[0034] FIG. 3A and FIG. 3B are respectively exploded view schematics of the double spring snap pump of the fluid container according to the preferred embodiment of the present application.

[0035] FIG. 4A and FIG. 4B are respectively sectional view schematics of one of the operation processes of the double spring snap pump of the fluid container according to the preferred embodiment of the present application.

[0036] FIG. 5A and FIG. 5BRespectively, the cross-sectional view schematic diagram of the second operation process of the double-spring bayonet pump of the fluid container of the above preferred embodiment of the utility model is shown.

[0037] FIG. 6A And FIG. 6B Respectively, the cross-sectional view schematic diagram of the third operation process of the double-spring bayonet pump of the fluid container of the above preferred embodiment of the utility model is shown.

[0038] FIG. 7A And FIG. 7B Respectively, the cross-sectional view schematic diagram of the fourth operation process of the double-spring bayonet pump of the fluid container of the above preferred embodiment of the utility model is shown.

[0039] FIG. 8A And FIG. 8B Respectively, the cross-sectional view schematic diagram of the fifth operation process of the double-spring bayonet pump of the fluid container of the above preferred embodiment of the utility model is shown. DETAILED DESCRIPTION

[0040] Before any embodiments of the utility model are explained in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The utility model is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0041] Also, in the disclosure of the utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the utility model; secondly, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, the term "one" cannot be understood as limiting the number.

[0042] Reference is made to the drawings of the utility modelFIGS. 1A-8B A fluid container with a double-spring bayonet pump according to a preferred embodiment of the present application will be disclosed and described in the following description, wherein the fluid container includes a bottle body 10 and a double-spring bayonet pump 20 mounted on a mouth rim of the bottle body 10, a fluid such as perfume can be contained in the bottle body 10, when a user presses the double-spring bayonet pump 20, the double-spring bayonet pump 20 can pump out and atomize the fluid to form a spray, wherein the double-spring bayonet pump 20 includes a pump body 21, a valve body 22, a piston unit 23, a flow passage forming unit 24, an inner side spring 25, an outer side spring 26, an atomizing nozzle 27 and a buckle 28.

[0043] Specifically, the pump body 21 has a pump cavity 211 and a bottom passage 212 communicated with the pump cavity 211, wherein the valve body 22 is arranged to open and close the bottom passage 212 of the pump body 21, when the valve body 22 opens the bottom passage 212 of the pump body 21, the fluid such as perfume is allowed to enter the pump cavity 211 through the bottom passage 212 of the pump body 21, when the valve body 22 closes the bottom passage 212 of the pump body 21, the fluid such as perfume is prevented from entering the pump cavity 211 through the bottom passage 212 of the pump body 21.

[0044] More specifically, the pump body 21 includes a pump body bottom 213 and a pump body peripheral portion 214, the pump body peripheral portion 214 extends upward from the periphery of the pump body bottom 213 to form the pump cavity 211 between the pump body bottom 213 and the pump body peripheral portion 214, the bottom passage 212 is formed in the pump body bottom 213. In the specific example of the fluid container of the present application shown in the accompanying drawings, the pump body bottom 213 of the pump body 21 protrudes into the pump cavity 211. That is, the pump cavity 211 of the pump body 21 forms an annular groove 215 around the pump body bottom 213. FIGS. 1A-8B

[0045] In the specific example of the fluid container of the present application shown in the accompanying drawings, the pump body bottom 213 of the pump body 21 protrudes into the pump cavity 211. That is, the pump cavity 211 of the pump body 21 forms an annular groove 215 around the pump body bottom 213. FIGS. 1A-8B ​In the specific example of the fluid container shown in the utility model, the valve body 22 is a ball valve which is movably arranged at the bottom of the pump cavity 211 of the pump body 21. When the valve body 22 moves upward, the valve body 22 opens the bottom passage 212 of the pump body 21. When the valve body 22 moves downward, the valve body 22 closes the bottom passage 212 of the pump body 21. Alternatively, in other examples of the fluid container in the utility model, the valve body 22 can also be a valve sheet which is deformable and arranged at the bottom of the pump cavity 211 of the pump body 21. When the middle part of the valve body 22 deforms upward, the valve body 22 opens the bottom passage 212 of the pump body 21. When the middle part of the valve body 22 deforms downward, the valve body 22 closes the bottom passage 212 of the pump body 21.

[0046] Further, the piston unit 23 has a piston passage 231, and the piston unit 23 is movably arranged in the pump cavity 211 of the pump body 21. The flow passage forming unit 24 has a fluid passage 241, and the flow passage forming unit 24 is movably arranged in the piston passage 231 of the piston unit 23. The bottom of the flow passage forming unit 24 can be attached to and separated from the piston unit 23. When the bottom of the flow passage forming unit 24 is attached to the piston unit 23, the fluid passage 241 of the flow passage forming unit 24 and the pump cavity 211 of the pump body 21 are blocked. When the bottom of the flow passage forming unit 24 is separated from the piston unit 23, the fluid passage 241 of the flow passage forming unit 24 and the pump cavity 211 of the pump body 21 are allowed to communicate.

[0047] It can be understood that the bottom of the flow passage forming unit 24 can be switched between the position of being attached to the piston unit 23 and the position of being separated from the piston unit 23 by changing the relative position of the flow passage forming unit 24 and the piston unit 23. Specifically, when the flow passage forming unit 24 moves downward relative to the piston unit 23, the bottom of the flow passage forming unit 24 is switched from the position of being attached to the piston unit 23 to the position of being separated from the piston unit 23, at which time the fluid passage 241 of the flow passage forming unit 24 and the pump cavity 211 of the pump body 21 are allowed to communicate. When the flow passage forming unit 24 moves upward relative to the piston unit 23, the bottom of the flow passage forming unit 24 is switched from the position of being separated from the piston unit 23 to the position of being attached to the piston unit 23, at which time the fluid passage 241 of the flow passage forming unit 24 and the pump cavity 211 of the pump body 21 are blocked.

[0048] The bottom of the inner side spring 25 is abutted against the piston unit 23, and the top of the inner side spring 25 is abutted against the flow passage forming unit 24. After the flow passage forming unit 24 is moved downward relative to the piston unit 23, the inner side spring 25 is compressed and deformed to accumulate elastic potential energy. In the process of returning to the original state, the inner side spring 25 can push the flow passage forming unit 24 to move upward relative to the piston unit 23.

[0049] The bottom of the outer side spring 26 is kept stationary relative to the pump body 21, and the top of the outer side spring 26 is abutted against the flow passage forming unit 24. After the flow passage forming unit 24 and the piston unit 23 are moved downward relative to the pump body 21, the outer side spring 26 is compressed and deformed to accumulate elastic potential energy. In the process of returning to the original state, the outer side spring 26 can push the flow passage forming unit 24 and the piston unit 23 to move upward relative to the pump body 21.

[0050] The atomizing nozzle 27 has a nozzle passage 271, and is installed on the flow passage forming unit 24. The fluid passage 241 of the flow passage forming unit 24 and the nozzle passage 271 of the atomizing nozzle 27 are communicated. The fluid entering the fluid passage 241 of the flow passage forming unit 24 can further enter the nozzle passage 271 of the atomizing nozzle 27, and is atomized to form spray when sprayed from the atomizing nozzle 27.

[0051] The buckle 28 is fixedly arranged on the pump body 21. The buckle 28 is buckled on the mouth rim of the bottle body 10 to install the double-spring bayonet pump 20 on the bottle body 10.

[0052] In the fluid container, when starting to press the atomizing nozzle 27, the piston unit 23 remains stationary due to the large friction force between the piston unit 23 and the pump body 21, the atomizing nozzle 27 and the flow channel forming unit 24 move downward relative to the piston unit 23, so that the inner side spring 25 is compressed and deformed by the flow channel forming unit 24 and the piston unit 23 to accumulate elastic potential energy, the fluid channel 241 of the flow channel forming unit 24 and the pump cavity 211 of the pump body 21 are communicated, and the valve body 22 remains in a position closing the bottom channel 212 of the pump body 21. Then, when the atomizing nozzle 27 is pressed downward, the atomizing nozzle 27, the flow channel forming unit 24 and the piston unit 23 move downward, the space of the cavity formed between the piston unit 23 and the pump body 21 becomes smaller and the pressure becomes larger, the fluid in the space flows through the fluid channel 241 of the flow channel forming unit 24 and the nozzle channel 271 of the atomizing nozzle 27 in turn and is sprayed out through the atomizing nozzle 27, in this process, the outer side spring 26 is compressed and deformed to accumulate elastic potential energy, the inner side spring 25 is kept in a compressed state, and the valve body 22 continues to remain in a position closing the bottom channel 212 of the pump body 21. When the piston unit 23 moves to the bottom of the pump cavity 211 of the pump body 21, the bottom of the pump body 21 can extend into the piston channel 231 of the piston unit 23, and a part of the piston unit 23 extends into the annular groove 215 of the pump body 21. When the atomizing nozzle 27 is just started to be pressed, the inner side spring 25 pushes the atomizing nozzle 27 and the flow channel forming unit 24 to move upward relative to the piston unit 23 in the process of returning to the initial state, so as to prevent the fluid channel 241 of the flow channel forming unit 24 and the pump cavity 211 of the pump body 21 from being communicated, and the piston unit 23 remains stationary due to the large friction force between the piston unit 23 and the pump body 21. Subsequently, the outer side spring 26 pushes the atomizing nozzle 27, the flow channel forming unit 24 and the piston unit 23 to move upward in the process of returning to the initial state, the space of the cavity formed between the piston unit 23 and the pump body 21 becomes larger and the pressure becomes smaller, the valve body 22 opens the bottom channel 212 of the pump body 21, so as to allow the fluid in the bottle body 1 to be supplemented to the space through the bottom channel 212 of the pump body 21. After the pressure in the space and the pressure in the bottle body 10 return to balance, the valve body 22 closes the bottom channel 212 of the pump body 21 again.

[0053] That is to say, in the fluid container, the double-spring bayonet pump 20 allows the pump body bottom 213 of the pump body 21 to extend into the piston channel 231 of the piston unit 23 and allows the piston unit 23 to extend into the annular groove 215 of the pump body 21, in this way, the height dimension of the double-spring bayonet pump 20 can be effectively reduced, which is beneficial to the miniaturization of the fluid container, and meanwhile, the size of the bottom of the pump body 21 exposed to the buckle 28 can be reduced, or even the bottom of the pump body 21 can not be exposed to the buckle 28, after the buckle 28 is buckled to the rim of the bottle body 10 to install the double-spring bayonet pump 20 on the bottle body 10, which is beneficial to improve the appearance of the fluid container. Moreover, the inner side spring 25 and the outer side spring 26 cooperate with each other, which is beneficial to improve the explosive force of the double-spring bayonet pump 20.

[0054] Reference is made to the accompanying drawings FIGS. 3A-8B The flow channel forming unit 24 comprises a flow channel forming portion 242 and a flow control portion 243, wherein the flow channel forming portion 242 comprises a main rod body 2421 and a shoulder body 2422 extending outward from the middle part of the main rod body 2421, and the main rod body 2421 is provided with a rod body channel 24211; the flow control portion 243 comprises a flow control seat 2431 and an assembly rod 2432 extending upward from the flow control seat 2431. The main rod body 2421 of the flow channel forming portion 242 extends downward into the piston channel 231 of the piston unit 23, the assembly rod 2432 of the flow control portion 243 is inserted into the rod body channel 24211 of the main rod body 2421 from bottom to top in a manner that the fluid channel 241 is formed between the assembly rod 2432 and the main rod body 2421, and the top of the inner side spring 25 and the top of the outer side spring 26 abut against the shoulder body 2422 of the flow channel forming portion 242, so that the flow channel forming unit 24 is movably installed in the piston channel 231 of the piston unit 23. When the user presses the atomizing nozzle 27 of the double-spring bayonet pump 20, the flow control seat 2431 of the flow control portion 243 can abut against and depart from the piston unit 23, so that the fluid channel 241 of the flow channel forming unit 24 can block and allow the pump cavity 211 of the pump body 21 to communicate. The top of the main rod body 2421 of the flow channel forming portion 242 is inserted into the nozzle channel 271 of the atomizing nozzle 27, so as to install the atomizing nozzle 27 on the main rod body 2421.

[0055] It is worth mentioning that the assembly mode of the main rod body 2421 of the flow channel forming portion 242 and the assembly rod 2432 of the flow control portion 243 is not limited in the fluid container, as long as they can be reliably assembled. For example, in the accompanying drawingsFIGS. 1A-8B In this specific example of the fluid container of the present application, the main rod body 2421 of the flow passage forming portion 242 has a plurality of assembly platforms 24212 which are arranged on the inner wall of the main rod body 2421 for defining the rod passage 24211 in a mutually spaced manner, the assembly rod 2432 of the flow control portion 243 comprises a rod bottom portion 24321, a rod middle portion 24322 and an insertion head 24323, the bottom of the rod bottom portion 24321 extends to and is connected to the flow control seat 2431, the bottom and top of the rod middle portion 24322 extend to and are connected to the rod bottom portion 24321 and the insertion head 24323 respectively, the diameter size of the rod middle portion 24322 is smaller than that of the rod bottom portion 24321 and the insertion head 24323, so that the assembly rod 2432 forms an assembly groove 24324 at the corresponding position of the rod middle portion 24322, during the assembly of the assembly rod 2432 on the main rod body 2421, when the insertion head 24323 passes through the assembly platforms 24212 of the main rod body 2421, the assembly platforms 24212 of the main rod body 2421 are extruded and deformed, after the insertion head 24323 passes through the assembly platforms 24212 of the main rod body 2421, the assembly platforms 24212 of the main rod body 2421 return to the original state and extend to the assembly groove 24324 of the assembly rod 2432, so that the main rod body 2421 and the assembly rod 2432 are reliably assembled.

[0056] Preferably, the insertion head 24323 of the assembly rod 2432 of the flow control portion 243 is a cone body, the size adjacent to the top of the rod middle portion 24322 is larger than that away from the top of the rod middle portion 24322, so that the insertion head 24323 can smoothly pass through the assembly platforms 24212 of the main rod body 2421.

[0057] With reference to the accompanying drawings FIGS. 3A-8B, the piston unit 23 comprises a piston body 232, a piston rod 233 and a flow control ring 234, the piston rod 233 extends upward from the piston body 232, the piston channel 231 penetrates through the piston body 232 and the piston rod 233, the flow control ring 234 protrudes into the piston channel 231 from the middle part of the piston rod 233, wherein the inner diameter size of the flow control ring 234 is smaller than the outer diameter size of the flow control seat 2431, so that when the user presses the atomizing nozzle 27 of the double-spring bayonet pump 20, the flow control seat 2431 can be attached to and separated from the flow control ring 234, so that the fluid channel 241 of the flow channel forming unit 24 can prevent and allow the pump cavity 211 of the pump body 21 to communicate.

[0058] In this specific example of the fluid container of the utility model, the bottom of the main rod body 2421 of the flow channel forming part 242 extends to the flow control seat 2431, and the inner wall of the flow control ring 234 is attached to the outer wall of the main rod body 2421, so that fluid is prevented from entering the space between the main rod body 2421 and the piston rod 233, not only can avoid fluid leakage, but also can isolate the fluid and the inner side spring 25, and avoid the case that the inner side spring 25 is corroded by the fluid.

[0059] In this specific example of the fluid container of the utility model, the flow channel forming part 242 comprises a protective ring 2423, the protective ring 2423 extends downward from the periphery of the shoulder body 2322, and the top of the outer side spring 26 extends into the protective ring 2423, so that the outer side spring 26 can be hidden, and the reliability of the fluid container can be ensured.

[0060] Reference is made to the accompanying drawings FIGS. 1A-8B The double-spring bayonet pump 20 comprises a pump plug 29, the pump plug 29 has a pump plug channel 291, the pump plug 29 is installed at the top opening of the pump body 21, the outer diameter size of the piston body 232 of the piston unit 23 is greater than the inner diameter size of the pump plug channel 291 of the pump plug 29, the outer diameter size of the piston rod 233 is smaller than the inner diameter size of the pump plug channel 291 of the pump plug 29, and the top of the piston rod 233 penetrates through the pump plug channel 291 of the pump plug 29, so that the pump plug 29 can prevent the piston unit 23 from being separated from the pump body 21. The bottom of the outer side spring 26 abuts against the pump plug 29, so that the bottom of the outer side spring 26 remains stationary relative to the pump body 21.

[0061] Further, the pump plug 29 comprises a resting ring 292, an extension cylinder 293 extending downwardly from the inner side of the resting ring 292, and a resting ring 294 extending inwardly from the bottom of the extension cylinder 293. The pump plug 29 further comprises an avoiding slot 295 formed in the extension cylinder 293, and a pump plug channel 291 formed in the resting ring 294. After the pump plug 29 is installed in the top opening of the pump body 21, the resting ring 292 rests on the edge of the top opening of the pump body 21, the extension cylinder 293 and the resting ring 294 extend into the pump cavity 211 of the pump body 21, the guard ring 2423 of the flow channel forming part 242 extends to the avoiding slot 295 of the pump plug 29, and the bottom of the outer spring 26 rests on the resting ring 294. Preferably, the peripheral wall of the extension cylinder 293 of the pump plug 29 has at least one clamping ring, and the inner wall of the pump body 21 for defining the pump cavity 211 is provided with at least one clamping groove, and the clamping groove of the extension cylinder 293 is clamped into the clamping groove of the pump body 21 to reliably install the pump plug 29 in the pump body 21.

[0062] Preferably, the pump plug 29 further comprises an avoiding gap 296 located at the connection position of the extension cylinder 293 and the resting ring 294, and the piston body 232 of the piston unit 23 can extend into the avoiding gap 296 of the pump plug 29.

[0063] Continuing to refer to the drawings, FIG. 1A And FIG. 1B The buckle 28 comprises a fitting ring 281, a shielding ring 282, a shoulder ring 283, and a buckle ring 284. The shielding ring 282 extends inwardly from the top of the fitting ring 281, the shoulder ring 283 extends outwardly from the bottom of the fitting ring 281, and the buckle ring 284 extends downwardly from the outer edge of the shoulder ring 283. The fitting ring 281 is fitted on the top of the pump body 21, the shielding ring 282 is used to shield the pump plug 29 so that the pump plug 29 is not visually visible, and the shoulder ring 283 is used to make the buckle ring 284 away from the pump body 21 to facilitate the installation of the double-spring bayonet pump 20 on the mouth edge of the bottle body 10 by the buckle ring 284. It can be understood that the buckle 28 can be reliably installed on the pump body 21 based on the friction force generated between the inner wall of the fitting ring 281 and the peripheral wall at the top opening of the pump body 21. Further, the inner wall of the fitting ring 281 and the peripheral wall of the pump body 21 can be buckled with each other to more reliably install the buckle 28 on the pump body 21.

[0064] Preferably, the double-spring bayonet pump 20 comprises a suction pipe 210, the top of which is inserted into the bottom of the pump body 21, and the bottom of the suction pipe 210 can extend to the bottom of the bottle body 10 after the double-spring bayonet pump 20 is installed in the bottle body 10, so that the fluid contained in the bottle body 10 can enter the pump cavity 211 through the bottom passage 212 of the pump body 21.

[0065] It will be understood by those skilled in the art that the above-described embodiments of the present application shown in the description and drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application have been shown and described in the embodiments, and the implementation of the present application can be any modification or modification without departing from the principle.

Claims

1. A double-spring bayonet pump, characterized in that, include: A pump body having a pump chamber and a bottom channel communicating with the pump chamber; A valve body, configured to open and close the bottom channel of the pump body; A piston unit is movably mounted vertically in the pump chamber of the pump body, wherein the piston unit has a piston channel into which the bottom of the pump body can extend; A flow channel forming unit is movably mounted on the piston channel of the piston unit, wherein the flow channel forming unit has a fluid channel, and the bottom of the flow channel forming unit is capable of engaging and disengaging from the piston unit. When the bottom of the flow channel forming unit is engaged with the piston unit, the fluid channel and the pump chamber are prevented from communicating; when the bottom of the flow channel forming unit is disengaged from the piston unit, the fluid channel and the pump chamber are allowed to communicate. The inner spring abuts against the piston unit and the flow channel forming unit at its bottom and top, respectively; An outer spring, the bottom of which remains stationary relative to the pump body, and the top of which abuts against the flow channel forming unit; An atomizing nozzle having a nozzle channel, wherein the atomizing nozzle is mounted on the flow channel forming unit, and the nozzle channel is in communication with the fluid channel; and A snap fastener, wherein the snap fastener is fixedly disposed on the pump body.

2. The dual-spring bayonet pump according to claim 1, wherein the flow channel forming unit includes a flow channel forming portion and a flow control portion, the flow channel forming portion includes a main rod body and a shoulder body extending outward from the middle of the main rod body, the main rod body has a rod body channel, the flow control portion includes a flow control seat and an assembly rod extending upward from the flow control seat, wherein the main rod body extends downward into the piston channel of the piston unit, the assembly rod is inserted upward into the rod body channel of the main rod body in such a way as to form the fluid channel between the assembly rod and the main rod body, the flow channel forming unit is mounted on the piston unit so as to be movable up and down, the flow control seat is capable of fitting and disengaging from the piston unit, wherein the top of the inner spring and the top of the outer spring both abut against the shoulder body.

3. The dual-spring bayonet pump according to claim 2, wherein the piston unit includes a piston body, a piston rod, and a flow control ring, the piston rod extends upward from the piston body, the piston channel passes through the piston body and the piston rod, the flow control ring protrudes into the piston channel from the middle of the piston rod, the inner diameter of the flow control ring is smaller than the outer diameter of the flow control seat, the flow control seat can fit against and separate from the flow control ring, wherein the bottom of the inner spring abuts against the flow control ring.

4. The dual-spring bayonet pump according to claim 3, wherein the bottom of the main rod extends to the flow control seat, and the inner wall of the flow control ring is attached to the outer wall of the main rod.

5. The dual-spring bayonet pump according to claim 2, wherein the flow channel forming portion includes a protective ring extending downward from the periphery of the shoulder body.

6. The dual-spring bayonet pump according to claim 3 or 4, wherein the dual-spring bayonet pump includes a pump plug having a pump plug channel, the pump plug being mounted in a top opening of the pump body, the outer diameter of the piston body being larger than the inner diameter of the pump plug channel of the pump plug, the outer diameter of the piston rod being smaller than the inner diameter of the pump plug channel of the pump plug, wherein the top of the piston rod passes through the pump plug channel of the pump plug, and wherein the bottom of the outer spring abuts against the pump plug to keep the bottom of the outer spring stationary relative to the pump body.

7. The dual-spring bayonet pump according to claim 3 or 4, wherein the flow channel forming portion includes a protective ring extending downward from the periphery of the shoulder body, wherein the dual-spring bayonet pump includes a pump plug having a clearance groove and a pump plug channel communicating with the clearance groove, the pump plug being mounted in a top opening of the pump body, the outer diameter of the piston body being larger than the inner diameter of the pump plug channel of the pump plug, the outer diameter of the piston rod being smaller than the inner diameter of the pump plug channel of the pump plug, wherein the top of the piston rod passes through the pump plug channel of the pump plug, wherein the protective ring extends into the clearance groove of the pump plug, wherein the bottom of the outer spring abuts against the pump plug to keep the bottom of the outer spring stationary relative to the pump body.

8. The dual-spring bayonet pump according to claim 7, wherein the pump plug includes an abutment ring, an extension cylinder extending downward from the inner side of the abutment ring, and an abutment ring extending inward from the bottom of the extension cylinder, the clearance groove is formed in the extension cylinder, the pump plug channel is formed in the abutment ring, wherein the abutment ring abuts against the edge of the top opening of the pump body, the extension cylinder and the abutment ring extend into the pump cavity of the pump body, and the bottom of the outer spring abuts against the abutment ring.

9. The dual-spring bayonet pump according to claim 8, wherein the pump plug has a clearance notch located at the connection position of the extension tube and the abutment ring, and the piston body is capable of extending into the clearance notch of the pump plug.

10. A fluid container equipped with a double-spring bayonet pump, characterized in that, include: Bottle body; and The dual-spring bayonet pump according to any one of claims 1 to 9, wherein the buckle is snapped onto the rim of the bottle body.

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