Bayonet spray pump and fluid container with bayonet spray pump

Abstract

The utility model discloses a bayonet atomizing pump and a fluid container with the bayonet atomizing pump, and the bayonet atomizing pump comprises an atomizing nozzle, a pump body, a valve body, a valve rod, a valve needle, a piston, a spring and a buckle, the valve body is arranged to be used for opening and closing a bottom channel of the pump body, the atomizing nozzle is installed on the top of the valve rod, a channel of the atomizing nozzle and a channel of the valve rod are communicated, the valve needle comprises a base and a needle rod extending upwards from the base, the needle rod is installed on the valve rod, and a fluid channel is formed between the needle rod and the valve rod. The piston is movably arranged at the bottom of the valve rod in a sleeved mode, the piston can be contained in a pump cavity of the pump body in an up-down moving mode, the bottom and the top of a first spring body of the spring abut against the piston and the middle of the valve rod respectively, and the bottom and the top of a second spring body of the spring are hooked to the middle of the valve rod and the top of the pump body respectively. The buckle is fixedly installed on the top of the pump body and used for clamping the bottle body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spray pump, especially a bayonet spray pump and a fluid container with the same. BACKGROUND

[0002] Perfume is one of the most important cosmetics in daily life, which is contained in a bottle with a spray pump. Users can pump out the perfume by pressing the spray pump, and the perfume is atomized to form a spray when being pumped out. For example, a perfume opening spray pump is disclosed in a Chinese utility model patent with the authorization announcement number CN212530684U, which comprises a pump body having a pump chamber, an aspirating assembly capable of moving up and down in the pump chamber, a locking cover at the pump body for preventing the aspirating assembly from falling out of the pump chamber, a buckle at the pump body for fixing the pump body on the bottle, a liquid suction channel having a sealing ball at the top end, the aspirating assembly comprising a valve rod and a valve needle, the valve rod having a liquid outlet channel, the valve needle inserted into the liquid outlet channel of the valve rod and capable of closing or opening the liquid outlet channel, the valve needle having a piston fixed at the bottom end, the pump chamber having a suction plug capable of slidingly sealing with the inner wall of the pump chamber, an upper spring between the suction plug and the valve rod, a blocking mechanism above the sealing ball, a lower spring connected between the blocking mechanism and the piston, a head cap provided on the valve rod, and a liquid outlet port on the head cap in communication with the liquid outlet channel. In the prior art, the upper and lower specifications of the upper spring between the suction plug and the valve rod are consistent, the bottom thereof abuts against the inner flange of the suction plug, and the bottom thereof abuts against the outer flange of the valve rod. When the user presses the head cap to move the valve rod downward, the valve rod compresses the upper spring in the direction of the suction plug to deform and accumulate elastic potential energy. When the user releases the pressure on the head cap, the upper spring pushes the valve rod to move in the direction away from the suction plug in the process of returning to the initial state. Due to the characteristics of the upper spring, the existing perfume bayonet spray pump has the problem that in the same pressing process, the upper spring that is not in the compressed state is easily compressed, so the user only needs to apply a small pressure to the head cap to deform the upper spring. Since the upper spring in the compressed state is difficult to accumulate compression, the user needs to apply a large pressure to the head cap to deform the upper spring, resulting in a poor hand feeling when the user presses the head cap, especially in the second half of the pressing process in the same pressing process, the hand feeling of the perfume bayonet spray pump is hard, and the experience is poor. SUMMARY

[0003] One object of the present application is to provide a bayonet spray pump and a fluid container with the bayonet spray pump, wherein the bayonet spray pump can provide a user with a consistent feeling throughout when the user presses the bayonet spray pump.

[0004] One object of the present application is to provide a bayonet spray pump and a fluid container with the bayonet spray pump, wherein the bayonet spray pump can provide a user with a consistent feeling throughout when the user presses the bayonet spray pump.

[0005] One object of the present application is to provide a bayonet spray pump and a fluid container with the bayonet spray pump, wherein the bayonet spray pump can provide a user with a consistent feeling throughout when the user presses the bayonet spray pump.

[0006] According to one aspect of the present application, the present application provides a bayonet spray pump, which comprises:

[0007] An atomizing nozzle, wherein the atomizing nozzle has a nozzle passage;

[0008] A pump body, wherein the pump body has a pump cavity and a bottom passage communicated with the pump cavity;

[0009] A valve body, wherein the valve body is arranged to open and close the bottom passage of the pump body;

[0010] A valve rod, wherein the valve rod has a valve rod passage, the atomizing nozzle is mounted on the top of the valve rod, and the nozzle passage and the valve rod passage are communicated;

[0011] A valve needle, wherein the valve needle comprises a base and a needle rod extending upward from the base, the needle rod is mounted on the valve rod in a manner of extending into the valve rod passage, and a fluid passage is formed between the valve rod and the valve needle;

[0012] A piston, wherein the piston is movably sleeved on the bottom of the valve rod, the piston can abut against and move away from the base, and the piston is movably arranged in the pump cavity of the pump body in a manner that the peripheral wall of the piston is fitted to the inner wall of the pump body;

[0013] A spring, wherein the spring comprises a first spring body and a second spring body, the bottom and the top of the first spring body abut against the piston and the middle of the valve rod respectively, and the bottom and the top of the second spring body hook the middle of the valve rod and the top of the pump body respectively; and

[0014] A buckle, wherein the buckle is fixedly arranged on the top of the pump body.

[0015] According to one embodiment of the present application, the first spring body and the second spring body are integrated.

[0016] According to one embodiment of the present application, the middle part of the valve stem has an abutting platform, the top part of the first spring body abuts against the abutting platform of the valve stem, so that the top part of the first spring body abuts against the middle part of the valve stem and the bottom part of the second spring body hooks the middle part of the valve stem.

[0017] According to one embodiment of the present application, the top part of the pump body has a hooking platform, the top part of the second spring body hooks the hooking platform of the pump body, so that the top part of the second spring body hooks the top part of the pump body.

[0018] According to one embodiment of the present application, the bayonet spray pump comprises a cap, the cap has a cap through hole, the cap is fixedly installed on the top opening of the pump body, wherein the outer diameter size of the top part of the valve stem is smaller than the inner diameter size of the cap through hole of the cap, the top part of the valve stem is installed with the atomizing nozzle after passing through the cap through hole of the cap.

[0019] According to one embodiment of the present application, the bayonet spray pump comprises a sealing ring, the sealing ring is sleeved on the top part of the valve stem and can abut against the bottom part of the cap.

[0020] According to one embodiment of the present application, the outer diameter size of the needle stem is smaller than the inner diameter size of the valve stem channel of the valve stem, the middle part of the needle stem has an assembly groove, the middle part of the valve stem has a plurality of assembly platforms, the assembly platforms extend from the inner wall of the valve stem to the assembly groove of the needle stem in a mutually spaced manner to install the needle stem on the valve stem, and the bayonet spray pump forms the fluid passage between the valve stem and the valve needle.

[0021] According to one embodiment of the present application, the bottom part of the valve stem abuts against the base, the base has a notch, and the notch is communicated with the fluid passage.

[0022] According to one embodiment of the present application, the bottom part of the valve stem abuts against the base, and the bottom part of the valve stem has a notch, and the notch is communicated with the fluid passage.

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

[0024] an atomizing nozzle, wherein the atomizing nozzle has a nozzle channel;

[0025] a pump body, wherein the pump body has a pump cavity and a bottom channel communicating with the pump cavity;

[0026] a valve body, wherein the valve body is arranged for opening and closing the bottom channel of the pump body;

[0027] a valve stem, wherein the valve stem has a stem channel, the atomizing head is mounted on the top of the valve stem, the head channel and the stem channel communicate with each other;

[0028] a valve needle, wherein the valve needle comprises a base and a needle stem extending upward from the base, the needle stem is mounted on the valve stem in a way that the needle stem extends into the stem channel, a fluid passage is formed between the valve stem and the valve needle;

[0029] a piston, wherein the piston is movably sleeved on the bottom of the valve stem, the piston can abut against and move away from the base, the piston is arranged in the pump cavity of the pump body in a way that the peripheral wall of the piston abuts against the inner wall of the pump body;

[0030] a spring, wherein the spring comprises a first spring body and a second spring body, the bottom and the top of the first spring body abut against the piston and the middle of the valve stem respectively, the bottom and the top of the second spring body are hooked on the middle of the valve stem and the top of the pump body respectively; and

[0031] a buckle, wherein the buckle is fixedly arranged on the top of the pump body, the buckle is buckled on the mouth of the bottle body; BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a sectional view of a fluid container with a bayonet spray pump according to a preferred embodiment of the present application.

[0033] Figure 2 is a perspective view of a bayonet spray pump of the fluid container according to the preferred embodiment of the present application from one view angle.

[0034] Figure 3 is a perspective view of the bayonet spray pump of the fluid container according to the preferred embodiment of the present application from another view angle.

[0035] Figure 4 is an exploded view of the bayonet spray pump of the fluid container according to the preferred embodiment of the present application.

[0036] Figure 5 is a sectional view of the bayonet spray pump of the fluid container according to the preferred embodiment of the present application.

[0037] Figure 6is a perspective view of a valve stem of the bayonet spray pump of the fluid container according to the preferred embodiment of the present utility model.

[0038] Figure 7 is a perspective view of a valve needle of the bayonet spray pump of the fluid container according to the preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0039] Before any embodiments of the present utility model are explained in detail, it is to be understood that the present 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 present 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.

[0040] Also, in the disclosure of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate directions or positional relationships based on the directions or positional relationships as shown by the drawings, which are constructed only by way of example and are merely conducive to describing the present utility model and simplifying the description, and therefore cannot be interpreted as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms cannot be understood as limiting the present 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, while in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as limiting the number.

[0041] Reference is made to the drawings of the present utility model Figures 1 to 7 A fluid container with a bayonet spray pump according to a preferred embodiment of the present utility model will be disclosed and described in the following description, wherein the fluid container comprises a bottle body 10 and a bayonet spray pump 20 clamped to the rim of the bottle body 10, and a fluid such as perfume can be contained in the bottle body 10, when a user presses the bayonet spray pump 20, the bayonet spray pump 20 can pump out the fluid and atomize it to form a spray, wherein the bayonet spray pump 20 comprises a pump body 21, a valve body 22, a valve needle 23, a valve stem 24, a piston 25, a spring 26, an atomizing nozzle 27, and a buckle 28.

[0042] Specifically, the pump body 21 has a pump cavity 211 and a bottom passage 212 communicating with the pump cavity 211, wherein the valve body 22 is arranged for opening and closing 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.

[0043] In the accompanying drawings Figures 1 to 7 In this specific example of the fluid container of the present utility model, the valve body 22 is a ball valve, which is arranged to be movable up and down at the bottom of the pump cavity 211 of the pump body 21, when the valve body 22 is moved up, the valve body 22 opens the bottom passage 212 of the pump body 21, when the valve body 22 is moved down, the valve body 22 closes the bottom passage 212 of the pump body 21. Alternatively, in other examples of the fluid container of the present 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 is deformed up, the valve body 22 opens the bottom passage 212 of the pump body 21, when the middle part of the valve body 22 is deformed down, the valve body 22 closes the bottom passage 212 of the pump body 21.

[0044] Referring to the accompanying drawings Figure 4 , Figure 5 and Figure 7 , the valve needle 23 comprises a base 231 and a needle stem 232 extending upward from the base 231. In the fluid container of the present utility model, the outer diameter size of the base 231 is greater than the outer diameter size of the needle stem 232, the central axis of the base 231 and the central axis of the needle stem 232 coincide, that is, the needle stem 232 extends upward from the middle part of the base 231. Preferably, the base 231 and the needle stem 232 of the valve needle 23 are integral, for example, plastic can be made into the integral valve needle 23 by injection molding process.

[0045] The valve stem 24 has a valve stem passage 241 extending through opposite ends of the valve stem 24. The needle stem 232 of the valve needle 23 is mounted to the valve stem 24 in a manner that the needle stem 232 extends into the valve stem passage 241, i.e. the valve needle 23 and the valve stem 24 are mounted as a whole. The bayonet spray pump 20 forms a fluid passage 100 between the valve needle 23 and the valve stem 24, through which fluid is allowed to flow through the bayonet spray pump 20 when pumping fluid.

[0046] Specifically, the needle stem 232 of the valve needle 23 has an outer diameter smaller than an inner diameter of the valve stem passage 241 of the valve stem 24, the needle stem 232 has a middle portion with a fitting groove 2321, and the valve stem 24 has a plurality of fitting platforms 242 extending from an inner wall of the valve stem 24 to the fitting groove 2321 of the needle stem 232 in a spaced-apart manner, so that the needle stem 232 is mounted to the valve stem 24 to mount the valve needle 23 and the valve stem 24 as a whole. It can be understood that, due to the outer diameter of the needle stem 232 of the valve needle 23 being smaller than the inner diameter of the valve stem passage 241 of the valve stem 24, and the fitting platforms 242 of the valve stem 24 being spaced apart from each other, the bayonet spray pump 20 forms the fluid passage 100 between the valve stem 24 and the valve needle 23, and the fluid passage 100 and the valve stem passage 241 of the valve stem 24 are communicated through gaps between adjacent fitting platforms 242 of the valve stem 24.

[0047] Reference is made to the accompanying drawings that show by way of example Figures 5 to 7The needle stem 232 of the valve needle 23 comprises a stem bottom 2322, a stem middle 2323 and a plug head 2324. The bottom of the stem bottom 2322 extends to and is connected to the base 231. The bottom and top of the stem middle 2323 extend to and are connected to the top of the stem bottom 2322 and the bottom of the plug head 2324 respectively. The diameter of the stem middle 2323 is smaller than the diameters of the stem bottom 2322 and the plug head 2324, so that the fitting groove 2321 is formed at the corresponding position of the stem middle 2323. The number of the fitting tables 242 of the valve stem 24 can be three. The three fitting tables 242 are spaced from each other. The diameter of the hole surrounded by the three fitting tables 242 is smaller than the diameter of the plug head 2324 and greater than or equal to the diameter of the stem middle 2323. During the installation of the valve needle 23 and the valve stem 24, when the plug head 2324 starts to pass through the hole surrounded by the three fitting tables 242, the three fitting tables 242 are deformed by the plug head 2324. After the plug head 2324 passes through the hole surrounded by the three fitting tables 242, the three fitting tables 242 return to the original state and extend to the fitting groove 2321 of the needle stem 232, thus completing the installation of the valve needle 23 and the valve stem 24.

[0048] Preferably, the plug head 2324 of the needle stem 232 is a cone. The size of the part adjacent to the top of the stem middle 2323 is greater than the size of the part away from the top of the stem middle 2323, so that the plug head 2324 can smoothly pass through the hole surrounded by the three fitting tables 242 of the valve stem 24.

[0049] Reference is made to the accompanying drawings that show Figure 5 and Figure 7 The bottom of the valve stem 24 abuts against the base 231 of the valve needle 23, so that the valve stem 24 and the valve needle 23 can be reliably installed and the relative movement of the valve needle 23 and the valve stem 24 in the height direction is avoided. The base 231 has at least one notch 2311 which is communicated with the fluid passage 100. Fluid is allowed to flow into the fluid passage 100 through the notch 2311 of the base 231. Preferably, the number of the notches 2311 of the base 231 is two. The two notches 2311 are symmetrical to each other. Alternatively, in other examples of the fluid container of the present application, the notch 2311 can be provided at the bottom of the valve stem 24 and communicated with the fluid passage 100, so that fluid is allowed to flow into the fluid passage 100 through the notch 2311 of the valve stem 24.

[0050] The piston 25 is movably sleeved at the bottom of the valve rod 24, that is, the piston 25 can move relative to the valve rod 24 in the height direction, and when the piston 25 moves relative to the valve rod 24 in the height direction, the piston 25 can abut against or move away from the base 231 of the valve needle 23. When the piston 25 abuts against the base 231, the piston 25 blocks the gap 2311 of the base 231, and at this time, the fluid is prevented from flowing into the fluid passage 100 of the bayonet spray pump 20 through the gap 2311 of the base 231. When the piston 25 moves away from the base 231, the piston 25 opens the gap 2311 of the base 231, and at this time, the fluid is allowed to flow into the fluid passage 100 of the bayonet spray pump 20 through the gap 2311 of the base 231. It can be understood that after the piston 25 is sleeved on the valve rod 24, the piston 25 provides a small binding force in the circumferential direction, so that not only can the gap between the bottom and the top of the piston 25 be prevented from being generated between the piston 25 and the valve rod 24, but also the piston 25 can move up and down along the valve rod 24.

[0051] The piston 25 is movably sleeved at the bottom of the valve rod 24, that is, the piston 25 can move relative to the valve rod 24 in the height direction, and when the piston 25 moves relative to the valve rod 24 in the height direction, the piston 25 can abut against or move away from the base 231 of the valve needle 23. When the piston 25 abuts against the base 231, the piston 25 blocks the gap 2311 of the base 231, and at this time, the fluid is prevented from flowing into the fluid passage 100 of the bayonet spray pump 20 through the gap 2311 of the base 231. When the piston 25 moves away from the base 231, the piston 25 opens the gap 2311 of the base 231, and at this time, the fluid is allowed to flow into the fluid passage 100 of the bayonet spray pump 20 through the gap 2311 of the base 231. It can be understood that after the piston 25 is sleeved on the valve rod 24, the piston 25 provides a small binding force in the circumferential direction, so that not only can the gap between the bottom and the top of the piston 25 be prevented from being generated between the piston 25 and the valve rod 24, but also the piston 25 can move up and down along the valve rod 24.

[0052] The spring 26 includes a first spring body 261 and a second spring body 262, the bottom and top of the first spring body 261 abut against the piston 25 and the middle of the valve rod 24 respectively, the bottom and top of the second spring body 262 are hooked to the middle of the valve rod 24 and the top of the pump body 21 respectively. Preferably, the first spring body 261 and the second spring body 262 of the spring 26 are integrated, for example, by bending a wire to form the first spring body 261 and the second spring body 262 in an integrated manner. Preferably, the outer diameter of the first spring body 261 is smaller than that of the second spring body 262, in this way, it is beneficial to make the bottom and top of the first spring body 261 abut against the piston 25 and the middle of the valve rod 24 respectively and the bottom and top of the second spring body 262 are hooked to the middle of the valve rod 24 and the top of the pump body 21 respectively.

[0053] The atomizing nozzle 27 has a nozzle channel 271, the atomizing nozzle 27 is installed on the top of the valve rod 24, the nozzle channel 271 of the atomizing nozzle 27 and the valve rod channel 241 of the valve rod 24 are communicated. In the attached Figures 1 to 7 In this specific example of the fluid container of the utility model, the top of the valve rod 24 extends into the nozzle channel 271 of the atomizing nozzle 27, based on the friction force generated between the outer wall of the valve rod 24 and the inner wall of the atomizing nozzle 27, the atomizing nozzle 27 is reliably installed on the top of the valve rod 24.

[0054] The buckle 28 is fixedly arranged on the top of the pump body 21, wherein the buckle 28 can be buckled on the mouth along of the bottle body 10, so that the cartridge pump 20 is installed on the bottle body 10.

[0055] Referring to the attached Figure 4 And Figure 5 The middle of the valve rod 24 has an abutting table 243, the top of the first spring body 261 abuts against the abutting table 243 of the valve rod 24, so that the top of the first spring body 261 abuts against the middle of the valve rod 24 and the bottom of the second spring body 262 is hooked to the middle of the valve rod 24. It can be understood that in the case that the top of the first spring body 261 abuts against the middle of the valve rod 24, the bottom of the second spring body 262 is hooked to the middle of the valve rod 24 because the first spring body 261 and the second spring body 262 are integrated. That is to say, the connecting position of the first spring body 261 and the second spring body 262 not only abuts against the abutting table 243 of the valve rod 24, but also is hooked to the abutting table 243 of the valve rod 24.

[0056] Continuing to refer to the attachedFigure 5 The top of the pump body 21 has a hooking platform 213, and the top of the second spring body 262 hooks the hooking platform 213 of the pump body 21, so that the top of the second spring body 262 is hooked on the top of the pump body 21.

[0057] With reference to the accompanying drawings Figure 5 The bayonet spray pump 20 further comprises a plug 29, which has a plug hole 291, and the plug 29 is fixedly installed on the top opening of the pump body 21, wherein the outer diameter of the top of the valve rod 24 is smaller than the inner diameter of the plug hole 291 of the plug 29, and the top of the valve rod 24 is installed with the atomizing head 27 after passing through the plug hole 291 of the plug 29, so that the valve rod 24 can move up and down relative to the plug 29.

[0058] With reference to the accompanying drawings Figure 5 In this specific example of the fluid container, the outer diameter of the plug 29 is consistent with the inner diameter of the pump body 21 at the top opening, and when the plug 29 is inserted into the top opening of the pump body 21, the plug 29 can be reliably installed at the top opening of the pump body 21 based on the friction force generated between the inner wall of the pump body 21 and the peripheral wall of the plug 29. Further, the peripheral wall of the plug 29 and the inner wall of the pump body 21 can be buckled to each other to more reliably install the plug 29 on the pump body 21.

[0059] Preferably, the bayonet spray pump 20 comprises a sealing ring 2110, which is sleeved on the top of the valve rod 24 and can abut against the bottom of the plug 29, and the sealing ring 2110 is used to prevent sundries from entering the space between the pump body 21 and the valve rod 24, avoid the problem of "jamming" of the spring 26, and ensure the reliability of the bayonet spray pump.

[0060] With reference to the accompanying drawings Figure 5The buckle 28 includes an assembling ring 281, a shielding ring 282, a shoulder ring 283 and a buckle ring 284. The shielding ring 282 is integrally extended inward from the top of the assembling ring 281, the shoulder ring 283 is integrally extended outward from the bottom of the assembling ring 281, and the buckle ring 284 is integrally extended downward from the outer edge of the shoulder ring 284. The assembling ring 281 is assembled on the top of the pump body 21, the shielding ring 282 is used to shield the cap 29 so that the cap 29 is visually invisible, and the shoulder ring 283 is used to make the buckle ring 284 away from the pump body 21, so as to facilitate the installation of the screw-on spray 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 assembling ring 281 and the circumferential wall at the opening of the top of the pump body 21. Further, the inner wall of the assembling ring 281 and the circumferential wall of the pump body 21 can be buckled with each other to more reliably install the buckle 28 on the pump body 21.

[0061] Preferably, the screw-on spray pump 20 includes a suction pipe 2111, the top of which is inserted into the bottom of the pump body 21, and the bottom of the suction pipe 2111 can extend to the bottom of the bottle body 10 after the open spray pump 20 is installed on the bottle body 10.

[0062] The use process of the fluid container is:

[0063] When starting to press the atomizing nozzle 27, the atomizing nozzle 27, the valve rod 24 and the valve needle 23 move downward, and the piston 25 remains stationary due to the large friction force between the circumferential wall of the piston 25 and the inner wall of the pump body 21, at this time the piston 25 opens the notch 2311 of the base 231 of the valve needle 23. At this stage, the first spring body 261 of the spring 26 is compressed and the second spring body 262 is stretched, and the valve body 22 remains in a position closing the bottom passage 212 of the pump body 21.

[0064] When the atomizing nozzle 27 is pressed down, the atomizing nozzle 27, the valve stem 24 and the valve needle 23 move down and push the piston 25 to move down, the space of the cavity formed between the pump body 21, the base 231 and the piston 25 becomes smaller and the pressure becomes larger, the liquid in the space flows through the gap 2311 of the base 231, the fluid passage 100 of the bayonet spray pump 20, the valve stem passage 241 of the valve stem 24 and the nozzle passage 271 of the atomizing nozzle 27 in sequence and is sprayed out through the atomizing nozzle 27. In this process, the first spring body 261 of the spring 26 is continuously compressed and the second spring body 262 is continuously stretched, and the valve body 22 continues to keep in the position of closing the bottom passage 212 of the pump body 21. During the whole pressing process, the first spring body 261 and the second spring body 262 of the spring 26 cooperate with each other to provide approximately the same resistance, so that the bayonet spray pump 20 provides consistent feeling throughout the process and allows the bayonet spray pump 20 to provide a more gentle feeling to the user.

[0065] When the atomizing nozzle 27 is just released, the first spring body 261 and the second spring body 262 of the spring 26 drive the atomizing nozzle 27, the valve stem 24 and the valve needle 23 to move up in the process of restoring the initial state, and the piston 25 remains stationary due to the large friction between the peripheral wall of the piston 25 and the inner wall of the pump body 21, at this time, the piston 25 closes the gap 2311 of the base 231 of the valve needle 23.

[0066] Subsequently, the first spring body 261 and the second spring body 262 of the spring 26 drive the atomizing nozzle 27, the valve stem 24, the valve needle 23 and the piston 25 to move up in the process of restoring the initial state, the space of the cavity formed between the pump body 21, the base 231 and the piston 25 becomes larger and the pressure becomes smaller, and the valve body 22 opens the bottom passage 212 of the pump body 21 to allow the fluid contained in the bottle body 10 to be replenished to the space through the suction tube 2111 and the bottom passage 212 of the pump body 21. After the pressure in the space and the pressure in the bottle body 10 are balanced, the valve body 22 closes the bottom passage 212 of the pump body 21 again.

[0067] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the implementation of the utility model can be any deformation or modification without departing from the principle.

Claims

1. A bayonet spray pump characterized in that, comprising: an atomizing head, wherein the atomizing head has a head passage; a pump body, wherein the pump body has a pump cavity and a bottom passage communicating with the pump cavity; a valve body, wherein the valve body is arranged to open and close the bottom passage of the pump body; a valve stem, wherein the valve stem has a stem passage, the atomizing head is mounted on a top of the valve stem, the head passage and the stem passage communicate with each other; a valve needle, wherein the valve needle comprises a base and a needle stem extending upwardly from the base, the needle stem is mounted on the valve stem in a manner that the needle stem extends into the stem passage, a fluid passage is formed between the valve stem and the valve needle; a piston, wherein the piston is movably sleeved on a bottom of the valve stem, the piston is capable of abutting against and moving away from the base, the piston is arranged in the pump cavity of the pump body in a manner that a peripheral wall of the piston abuts against an inner wall of the pump body; a spring, wherein the spring comprises a first spring body and a second spring body, a bottom and a top of the first spring body abut against the piston and a middle of the valve stem respectively, a bottom and a top of the second spring body are hooked on the middle of the valve stem and a top of the pump body respectively; and a buckle, wherein the buckle is fixedly arranged on the top of the pump body.

2. The luer spray pump according to claim 1, wherein the first spring body and the second spring body are integrated.

3. The luer spray pump according to claim 2, wherein the middle of the valve stem has an abutting platform, the top of the first spring body abuts against the abutting platform of the valve stem, so that the top of the first spring body abuts against the middle of the valve stem and the bottom of the second spring body is hooked on the middle of the valve stem.

4. The luer spray pump according to claim 2, wherein the top of the pump body has a hooking platform, the top of the second spring body is hooked on the hooking platform of the pump body, so that the top of the second spring body is hooked on the top of the pump body.

5. The luer spray pump according to any one of claims 1 to 4, wherein the luer spray pump comprises a cap, the cap has a cap through hole, the cap is fixedly mounted on a top opening of the pump body, wherein an outer diameter of the top of the valve stem is smaller than an inner diameter of the cap through hole of the cap, the atomizing head is mounted on the top of the valve stem after passing through the cap through hole of the cap.

6. The luer spray pump according to claim 5, wherein the luer spray pump comprises a sealing ring, the sealing ring is sleeved on the top of the valve stem and is capable of abutting against a bottom of the cap.

7. The luer spray pump according to any one of claims 1 to 4, wherein an outer diameter of the needle stem is smaller than an inner diameter of the stem passage of the valve stem, a middle of the needle stem has a fitting groove, a middle of the valve stem has a plurality of fitting platforms, the fitting platforms extend from an inner wall of the valve stem to the fitting groove of the needle stem in a manner that the fitting platforms are spaced from each other, the needle stem is mounted on the valve stem by means of the fitting platforms, and the luer spray pump forms the fluid passage between the valve stem and the valve needle.

8. The bayonet spray pump of claim 7 wherein the bottom of the valve stem abuts the base, the base having an aperture that is in communication with the fluid passageway.

9. The bayonet spray pump of claim 7 wherein the bottom of the valve stem abuts the base, the bottom of the valve stem having an aperture that is in communication with the fluid passageway.

10. A fluid container with a bayonet spray pump, characterized in that, comprising: a bottle body; and the bayonet spray pump of any one of claims 1 to 9, wherein the bayonet is snapped onto a mouth rim of the bottle body.

Images