Self-locking emulsion pump and emulsion bottle

Abstract

The invention discloses a self-locking emulsion pump and an emulsion bottle, the self-locking emulsion pump comprises a spring, a valve, a pump body, a liquid taking unit and a locking unit, the valve is installed on the pump body and used for opening or closing a liquid inlet channel of the pump body, the liquid taking unit is installed on the pump body, and the locking unit is installed on the pump body. The bottom of the liquid taking unit is installed in a pump body space of the pump body in a vertically movable mode so that a pump cavity can be formed between the liquid taking unit and the pump body, the locking unit comprises a locking part and an adjusting part, the locking part is located in the pump body space of the pump body and keeps unchanged relative to the height position of the pump body, and the adjusting part is located in the pump body space of the pump body and keeps unchanged relative to the height position of the pump body. The adjusting part is movably arranged in the middle of the liquid taking unit in a sleeved mode and can be locked at different height positions of the locking part, the bottom of the spring abuts against the adjusting part, and the top of the spring abuts against the liquid taking unit.

Description

TECHNICAL FIELD

[0001] The present application relates to lotion pump, in particular to a self-locking lotion pump and a lotion bottle. BACKGROUND

[0002] Lotion bottle has a wide range of applications in daily chemical field and medical field. When in use, the head cap of the lotion pump of the lotion bottle is pressed downward, the fluid in the pump cavity of the lotion pump can be discharged through the head cap channel of the head cap, and at this time, the spring of the lotion pump is compressed to accumulate elastic potential energy, and when the pressure applied to the head cap of the lotion pump is removed, the spring pushes the head cap upward in the process of returning to the original state to allow the fluid in the bottle body of the lotion bottle to supplement to the pump cavity of the lotion pump for discharge next time the head cap is pressed, thus realizing the pumping of the fluid. The lotion pump of the existing lotion bottle is usually in a pop-up state, in order to prevent the head cap of the lotion pump from being pressed by mistake and causing the problem of liquid leakage, the lotion bottle usually provides a cover for covering the head cap of the lotion pump, and the cover is removed before use to expose the head cap of the lotion pump, and the cover is covered on the head cap during transportation or carrying to avoid the head cap from being pressed by mistake. When the lotion bottle is transported or carried, although the head cap of the lotion pump can be avoided from being pressed by mistake by covering the cover on the head cap of the lotion pump, this method still has many defects, which are as follows. First, since the cover is needed to cover the head cap of the lotion pump, not only the cost of the lotion bottle is increased, but also how to reliably cover the cover on the outside of the head cap of the lotion pump to avoid the cover from falling off during the transportation or carrying of the lotion bottle needs to be considered, secondly, the height size of the lotion bottle is large when the lotion bottle is transported or stored in the way of covering the cover on the outside of the head cap of the lotion pump, which needs to occupy more space and increases the transportation cost and storage cost. SUMMARY

[0003] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein when the self-locking lotion pump is in a locked state, the liquid taking unit of the self-locking lotion pump is prevented from being pressed to avoid the self-locking lotion pump from being pressed by mistake and causing the problem of liquid leakage of the lotion bottle, and correspondingly, when the self-locking lotion pump is in a released state, the liquid taking unit of the self-locking lotion pump is allowed to be pressed to take liquid from the bottle body of the lotion bottle.

[0004] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein when the self-locking lotion pump is in a locked state, the height size of the self-locking lotion pump can be reduced to reduce the height size of the lotion bottle, thereby reducing the space occupied by the lotion bottle.

[0005] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein the self-locking lotion pump provides a locking unit, which is switched between a first locking position and a second locking position by changing the way of adjusting the locking position of an adjusting portion and a locking portion, and the self-locking lotion pump is switched between a locked state and a released state when the locking unit is in the first locking position and the second locking position, respectively, so that the self-locking lotion pump is switched between the locked state and the released state by changing the way of adjusting the locking position of the adjusting portion and the locking portion.

[0006] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein the locking unit is switched between a first locking position and a second locking position by driving the adjusting portion to rotate relative to the locking portion, and the self-locking lotion pump is switched between a locked state and a released state accordingly. Preferably, the liquid taking unit is configured to drive the adjusting portion to rotate relative to the locking portion for user operation.

[0007] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein the self-locking lotion pump provides a spring, and the opposite ends of the spring are respectively abutted against the liquid taking unit and the adjusting portion, so that the self-locking lotion pump can avoid over-compression of the spring when the self-locking lotion pump is in the locked state, to ensure the elasticity of the spring and improve the reliability of the self-locking lotion pump.

[0008] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein the self-locking lotion pump provides a spring, and the opposite ends of the spring are respectively abutted against the liquid taking unit and the adjusting portion, so that the spring is static relative to the liquid taking unit and the adjusting portion when the adjusting portion is driven to rotate relative to the locking portion, to avoid force on the spring and ensure the elasticity of the spring.

[0009] One object of the present application is to provide a self-locking lotion pump and a lotion bottle, wherein at least a part of the peripheral wall of the assembling seat of the liquid taking unit is fitted to the inner wall of the pump body when the self-locking lotion pump is in the locked state, to avoid liquid leakage.

[0010] According to one aspect of the present application, a self-locking lotion pump is provided, which comprises: a spring; a valve; a pump body having a pump body space and a liquid inlet channel communicated with the pump body space, wherein the valve is configured to open or close the liquid inlet channel of the pump body; A liquid extraction unit comprising a connecting rod, an assembly seat, a piston, and a fluid passage, wherein the connecting rod has a rod channel, the assembly seat is assembled to the bottom of the connecting rod, the fluid passage is formed between the connecting rod and the assembly seat, and the fluid passage and the rod channel are connected, the piston is movably mounted on the bottom of the connecting rod, wherein the bottom of the liquid extraction unit is movably mounted in the pump body space of the pump body in a manner that the peripheral wall of the piston is in contact with the inner wall of the pump body, and the self-locking lotion pump forms a pump chamber between the liquid extraction unit and the pump body, and the piston is configured to allow or prevent the fluid passage of the liquid extraction unit from being connected to the pump chamber; and A locking unit, which includes a locking portion and an adjusting portion, wherein the locking portion is located in the pump body space of the pump body, and the locking portion is constructed to remain unchanged in height position relative to the pump body, the adjusting portion is movably mounted on the middle portion of the connecting rod and can be locked at different height positions of the locking portion, and the adjusting portion is constructed to limit the maximum distance of upward movement of the connecting rod, wherein the bottom of the spring abuts against the adjusting portion, and the top of the spring abuts against the top of the connecting rod.

[0011] According to one embodiment of the present invention, the locking unit has a first locking position and a second locking position. The locking unit is switched between the first locking position and the second locking position by changing the locking positions of the adjusting portion and the locking portion. When the locking unit is in the first locking position, the pump chamber of the self-locking lotion pump has a minimum volume or tends to the minimum volume. When the locking unit is in the second locking position, the pump chamber of the self-locking lotion pump has a maximum volume or tends to the maximum volume.

[0012] According to one embodiment of the present invention, the locking unit has a first locking position and a second locking position. The locking unit switches between the first locking position and the second locking position by changing the locking positions of the adjusting portion and the locking portion. When the locking unit is in the first locking position, the assembly seat is against the pump body. When the locking unit is in the second locking position, the assembly seat is away from the pump body.

[0013] According to one embodiment of the present invention, the locking portion is fixedly mounted on the pump body, and the locking unit switches between the first locking position and the second locking position by driving the adjusting portion to slide relative to the locking portion in the height direction.

[0014] According to one embodiment of the present application, the locking portion is fixedly installed on the pump body, and has at least one first locking slot, at least one second locking slot, and at least one sliding slot, the first and second locking slots are located at different height positions of the locking portion, the sliding slot extends along the height direction of the locking portion, and the bottom and top of the sliding slot are communicated with the first and second locking slots, respectively, the bottom of the adjusting portion has at least one locking protrusion, the locking protrusion is arranged to slide along the sliding slot of the locking portion from the first locking slot to the second locking slot, when the locking protrusion of the adjusting portion is locked in the first locking slot of the locking portion, the locking unit is in the first locking position, and when the locking protrusion of the adjusting portion is locked in the second locking slot of the locking portion, the locking unit is in the second locking position.

[0015] According to one embodiment of the present application, the locking unit further comprises a fixed portion, the fixed portion is fixedly installed on the pump body space of the pump body, the fixed portion has a fixed cavity and a guide slot communicated with the fixed cavity, the guide slot extends along the height direction of the fixed portion in a spiral manner, the locking portion is rotatably installed in the fixed cavity of the fixed portion, the locking portion has at least one first locking slot, at least one second locking slot, and at least one sliding slot, the first and second locking slots are located at different height positions of the locking portion and correspond to different height positions of the guide slot of the fixed portion, respectively, the sliding slot extends along the height direction of the locking portion, and the bottom and top of the sliding slot are communicated with the first and second locking slots, respectively, the bottom of the adjusting portion has at least one locking protrusion, the locking protrusion extends to the guide slot of the fixed portion after passing through the first locking slot, the second locking slot, or the sliding slot of the locking portion, and the locking protrusion is arranged to slide along the sliding slot of the locking portion from the first locking slot to the second locking slot, when the locking protrusion of the adjusting portion is locked in the first locking slot of the locking portion, the locking unit is in the first locking position, and when the locking protrusion of the adjusting portion is locked in the second locking slot of the locking portion, the locking unit is in the second locking position.

[0016] According to one embodiment of the present application, from a top view, the projections of the first and second locking slots of the locking portion communicated with the same sliding slot on the same projection plane are staggered.

[0017] According to one embodiment of the present application, from a top view, the projections of the first and second locking slots of the locking portion communicated with the same sliding slot on the same projection plane are coincident.

[0018] According to one embodiment of the present application, the first locking slot and the second locking slot of the locking portion, which are connected to the same chute, are projected on different projection planes from a top view.

[0019] According to one embodiment of the present application, the distance between the locking protrusion of the adjusting portion and the central axis of the self-locking lotion pump is greater than the distance between the inner wall of the first locking slot of the locking portion and the central axis of the self-locking lotion pump.

[0020] According to one embodiment of the present application, the distance between the locking protrusion of the adjusting portion and the central axis of the self-locking lotion pump is less than or equal to the distance between the inner wall of the second locking slot of the locking portion and the central axis of the self-locking lotion pump, wherein the locking portion has a blocking block protruding from the inner wall of the locking portion for forming the second locking slot, for blocking the end surface of the locking protrusion of the adjusting portion.

[0021] According to one embodiment of the present application, the connecting rod has an abutting platform against which the top of the piston can abut, the assembly seat comprises a seat body portion and an insertion portion integrally extending upward from the seat body portion, the insertion portion is inserted into the rod body channel of the connecting rod, and the bottom of the piston can abut against the seat body portion, wherein when the bottom of the piston abuts against the seat body portion, the piston prevents the fluid channel and the pump cavity from being connected, and when the bottom of the piston is away from the seat body portion, the piston allows the fluid channel and the pump cavity to be connected.

[0022] According to one embodiment of the present application, the assembly seat comprises a seat body portion and a ring body portion integrally extending downward from the seat body portion, and the peripheral wall of the ring body portion can be attached to the inner wall of the pump body.

[0023] According to one embodiment of the present application, the connecting rod comprises a rod body and an extension arm surrounding the top of the rod body, the bottom of the extension arm has at least one arm protrusion, the adjusting portion has at least one movable slot extending along the height direction of the adjusting portion, and the movable slot does not extend to the top and the bottom of the adjusting portion, wherein the arm protrusion of the extension arm is movably installed in the movable slot of the adjusting portion, so that the adjusting portion is configured to limit the maximum distance of upward movement of the connecting rod.

[0024] According to one embodiment of the present application, the spring is a plastic spring, wherein the spring comprises at least three extension legs, each of which extends helically around a central axis of the spring, each of which has a plurality of quadrilateral hollowed-out portions distributed at intervals along a height direction of the extension leg, wherein side portions of adjacent extension legs are integral; wherein each of the extension legs comprises a top connecting portion, a bottom connecting portion, two leg portions arranged at intervals, opposite ends of the top connecting portion extending to and being connected to top portions of the two leg portions, opposite ends of the bottom connecting portion extending to and being connected to bottom portions of the two leg portions, and a plurality of traction portions, opposite ends of each of the traction portions extending to and being connected to different positions of middle portions of the two leg portions to form the hollowed-out portions between adjacent two traction portions and the two leg portions, the hollowed-out portions between an uppermost one of the traction portions, the top connecting portion and the two leg portions, and the hollowed-out portions between a lowermost one of the traction portions, the bottom connecting portion and the two leg portions, wherein one leg portion of one of the extension legs and one leg portion of an adjacent one of the extension legs are integral; wherein the top connecting portions of adjacent extension legs are integral and form a circular ring structure, and the bottom connecting portions of the extension legs are integral and form a circular ring structure; wherein the hollowed-out portions formed between adjacent two traction portions and the two leg portions are parallelogram structures; and wherein the thickness dimension of the traction portion is smaller than that of the leg portion.

[0025] According to another aspect of the present application, the present application further provides a lotion bottle, which comprises a bottle body and a self-locking lotion pump mounted on the bottle body, wherein the self-locking lotion pump comprises: a spring; a valve; a pump body having a pump body space and a liquid inlet channel connected to the pump body space, wherein the valve is configured to be capable of opening or closing the liquid inlet channel of the pump body; a liquid taking unit including a connecting rod, an assembly seat and a piston, and having a fluid passage, the connecting rod having a rod passage, the assembly seat being assembled at the bottom of the connecting rod, the fluid passage being formed between the connecting rod and the assembly seat, and the fluid passage and the rod passage being communicated, the piston being movably sleeved at the bottom of the connecting rod, wherein the bottom of the liquid taking unit is movably installed in the pump body space of the pump body in a manner that the peripheral wall of the piston is in contact with the inner wall of the pump body, and the self-locking emulsion pump forms a pump cavity between the liquid taking unit and the pump body, the piston is configured to allow or prevent the fluid passage of the liquid taking unit and the pump cavity from being communicated; and a locking unit including a locking part and an adjusting part, the locking part being located in the pump body space of the pump body, and the locking part being configured to keep the height position unchanged relative to the pump body, the adjusting part being movably sleeved at the middle part of the connecting rod and being lockable at different height positions of the locking part, and the adjusting part being configured to limit the maximum distance of upward movement of the connecting rod, wherein the bottom of the spring is in contact with the adjusting part, and the top of the spring is in contact with the top of the connecting rod.

[0026] According to an aspect of the present application, the present application provides a self-locking emulsion pump, which includes: a spring; a valve; a piston; an assembly seat; a head cap having a head cap passage; an adjusting part having at least one movable slot and at least one locking protrusion, the movable slot extending along the height direction of the adjusting part, and the movable slot not extending to the top and bottom of the adjusting part; a locking part having at least one first locking slot, at least one second locking slot and at least one sliding slot, the sliding slot extending along the height direction of the locking part, the first locking slot and the second locking slot being respectively communicated with the bottom and the top of the sliding slot; a connecting rod having a rod passage and an abutting table, wherein the head cap is installed at the top of the connecting rod in a manner that the head cap passage and the rod passage are communicated, wherein the assembly seat is assembled at the bottom of the connecting rod in a manner that a fluid passage is formed between the assembly seat and the connecting rod, wherein the piston is movably sleeved at the bottom of the connecting rod, the top of the piston being capable of abutting or moving away from the abutting table of the connecting rod, and the bottom of the piston being capable of abutting or moving away from the assembly seat; and a pump body having a pump body space and a liquid inlet channel communicated with the pump body space, wherein the valve is installed on the pump body for opening or closing the liquid inlet channel of the pump body, wherein the peripheral wall of the piston is fitted to the inner wall of the pump body to form a pump cavity between the pump body and the piston, wherein the locking portion is fixedly installed on the pump body space of the pump body, wherein the adjusting portion is movably sleeved on the middle portion of the connecting rod, and the locking protrusion of the adjusting portion can be locked in the first locking slot or the second locking slot of the locking portion, wherein the bottom of the spring abuts against the adjusting portion, and the top of the spring abuts against the top of the connecting rod.

[0027] According to one embodiment of the present application, the assembly seat comprises a seat body portion and a plug-in portion integrally extending upward from the seat body portion, the plug-in portion is plugged into the rod body channel of the connecting rod, and the bottom of the piston can abut against or be away from the seat body portion, wherein when the bottom of the piston abuts against the seat body portion, the piston prevents the fluid channel and the pump cavity from being communicated, and when the bottom of the piston is away from the seat body portion, the piston allows the fluid channel and the pump cavity to be communicated.

[0028] According to one embodiment of the present application, the assembly seat comprises a seat body portion and a ring body portion integrally extending downward from the seat body portion, and the peripheral wall of the ring body portion can be fitted to the inner wall of the pump body.

[0029] According to another aspect of the present application, the present application further provides a self-locking emulsion pump, which comprises: a spring; a valve; a piston; an assembly seat; a head cap having a head cap channel; an adjusting portion having at least one movable slot and at least one locking protrusion, the movable slot extends along the height direction of the adjusting portion, and the movable slot does not extend to the top and bottom of the adjusting portion; a locking portion having at least one first locking slot, at least one second locking slot and at least one sliding slot, the sliding slot extends along the height direction of the locking portion, and the first locking slot and the second locking slot are respectively communicated with the bottom and the top of the sliding slot; a fixing portion having a fixing cavity and a guide slot communicated with the fixing cavity, the guide slot extends along the height direction of the fixing portion in a spiral manner; a connecting rod having a rod passage and an abutting platform, wherein the head cap is mounted on the top of the connecting rod in a manner that the head cap passage and the rod passage are communicated, wherein the assembly seat is assembled on the bottom of the connecting rod in a manner that a fluid passage is formed between the assembly seat and the connecting rod, wherein the piston is movably sleeved on the bottom of the connecting rod, the top of the piston can abut against or be away from the abutting platform of the connecting rod, and the bottom of the piston can abut against or be away from the assembly seat; and a pump body having a pump body space and a liquid inlet passage communicated with the pump body space, wherein the valve is mounted on the pump body for opening or closing the liquid inlet passage of the pump body, wherein the peripheral wall of the piston is fitted on the inner wall of the pump body to form a pump cavity between the pump body and the piston, wherein the fixing part is fixedly mounted on the pump body space of the pump body, wherein the locking part is rotatably mounted on the fixing cavity of the fixing part, and the first locking slot and the second locking slot of the locking part correspond to different height positions of the guide slot of the fixing part respectively, wherein the lock protrusion of the adjusting part extends to the guide slot of the fixing part after passing through the first locking slot, the second locking slot or the sliding slot of the locking part, and the lock protrusion can be locked in the first locking slot or the second locking slot of the locking part, wherein the bottom of the spring abuts against the adjusting part, and the top of the spring abuts against the top of the connecting rod.

[0030] According to an embodiment of the present application, the assembly seat comprises a seat body part and a plug-in part integrally extending upward from the seat body part, the plug-in part is plugged into the rod passage of the connecting rod, and the bottom of the piston can abut against or be away from the seat body part, wherein when the bottom of the piston abuts against the seat body part, the piston prevents the fluid passage and the pump cavity from being communicated, and when the bottom of the piston is away from the seat body part, the piston allows the fluid passage and the pump cavity to be communicated.

[0031] According to an embodiment of the present application, the assembly seat comprises a seat body part and a ring body part integrally extending downward from the seat body part, and the peripheral wall of the ring body part can be fitted on the inner wall of the pump body. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a sectional view of a lotion bottle according to a preferred embodiment of the present application, when a self-locking lotion pump of the lotion bottle is in a locked state.

[0033] Figure 2 is a sectional view of the lotion bottle according to the above-mentioned preferred embodiment of the present application, when the self-locking lotion pump of the lotion bottle is in a released state.

[0034] Figure 3 is a perspective view of one view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application.

[0035] Figure 4 is a perspective view of another view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application.

[0036] Figure 5 is an exploded view of one view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application.

[0037] Figure 6 is an exploded view of another view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application.

[0038] Figure 7 is a sectional view of one direction of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a locked state.

[0039] Figure 8 is a sectional view of another direction of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a locked state.

[0040] Figure 9 is a sectional view of one direction of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a released state.

[0041] Figure 10 is a sectional view of another direction of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a released state.

[0042] Figure 11 is a partially sectional view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a locked state.

[0043] Figure 12 is a partially sectional view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a released state.

[0044] Figure 13 is a partially sectional view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in a switching from a self-locked state to a released state, which shows a first positional relationship between a locking portion and an adjusting portion of a locking unit of the self-locking lotion pump.

[0045] Figure 14is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a second positional relationship between the locking portion and the adjusting portion of the locking unit of the self-locking lotion pump.

[0046] Figure 15 is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a third positional relationship between the locking portion and the adjusting portion of the locking unit of the self-locking lotion pump.

[0047] Figure 16 is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a fourth positional relationship between the locking portion and the adjusting portion of the locking unit of the self-locking lotion pump.

[0048] Figure 17 is an exploded schematic view of another self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application from one perspective.

[0049] Figure 18 is an exploded schematic view of another self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application from another perspective.

[0050] Figure 19 is a schematic view of a cross section of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in the locking state from one direction.

[0051] Figure 20 is a schematic view of a cross section of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in the locking state from another direction.

[0052] Figure 21 is a schematic view of a cross section of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in the releasing state from one direction.

[0053] Figure 22 is a schematic view of a cross section of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application in the releasing state from another direction.

[0054] Figure 23 is an exploded schematic view of a partial structure of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application, describing a structural relationship between a fixing portion, a locking portion and an adjusting portion of a locking unit of the self-locking lotion pump.

[0055] Figure 24is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a first positional relationship of the fixing part, the locking part and the adjusting part of the locking unit of the self-locking lotion pump.

[0056] Figure 25 is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a second positional relationship of the fixing part, the locking part and the adjusting part of the locking unit of the self-locking lotion pump.

[0057] Figure 26 is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a third positional relationship of the fixing part, the locking part and the adjusting part of the locking unit of the self-locking lotion pump.

[0058] Figure 27 is a partial structural schematic view of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present application when switching from the self-locking state to the releasing state, showing a fourth positional relationship of the fixing part, the locking part and the adjusting part of the locking unit of the self-locking lotion pump. DETAILED DESCRIPTION

[0059] Before any embodiments of the application are explained in detail, it is to be understood that the application 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 application is capable of other embodiments and of being practiced or of 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.

[0060] And, in the disclosure of the present application, 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 based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application; 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 elements can be multiple, the term "one" cannot be understood as a limitation of the number.

[0061] Reference is made to the accompanying drawings of the present application Figure 1 And Figure 2 A lotion bottle according to a preferred embodiment of the present application will be disclosed and described in the following description, wherein the lotion bottle comprises a self-locking lotion pump 100 and a bottle body 200, the self-locking lotion pump 100 is installed on the bottle body 200, wherein the self-locking lotion pump 100 is used to pump fluid from the bottle body 200.

[0062] Attached Figures 3 to 16 The first specific example of the self-locking lotion pump 100 is shown, wherein the self-locking lotion pump 100 comprises a pump body 10, a valve 20, a liquid taking unit 30, a locking unit 40 and a spring 50.

[0063] Specifically, the pump body 10 has a pump body space 11 and a liquid inlet channel 12 and a top opening 13 respectively communicating with the pump body space 11. The valve 20 is configured to open or close the liquid inlet channel 12 of the pump body 10. The liquid taking unit 30 includes a connecting rod 31 having a rod body channel 311, an assembly seat 32 assembled at the bottom of the connecting rod 31, a piston 33 movably sleeved at the bottom of the connecting rod 31, and a fluid channel 34 formed between the connecting rod 31 and the assembly seat 32 and communicating with the rod body channel 311, wherein the bottom of the liquid taking unit 30 is movably installed in the pump body space 11 of the pump body 10 in a manner that the peripheral wall of the piston 33 abuts against the inner wall of the pump body 10, and the self-locking emulsion pump 100 forms a pump cavity 60 between the liquid taking unit 30 and the pump body 10, and the piston 33 is configured to allow or prevent the fluid channel 34 of the liquid taking unit 30 from communicating with the pump cavity 60. The locking unit 40 includes a locking portion 41 located in the pump body space 11 of the pump body 10 and configured to keep the height position unchanged relative to the pump body 10, and an adjusting portion 42 movably sleeved at the middle portion of the connecting rod 31 and lockable at different height positions of the locking portion 41, and the adjusting portion 42 is configured to limit the maximum distance of upward movement of the connecting rod 31. The bottom of the spring 50 abuts against the adjusting portion 42, and the top of the spring 50 abuts against the top of the connecting rod 31.

[0064] When the adjusting portion 42 is locked at the lower position of the locking portion 41, the self-locking emulsion pump 100 is in a locked state, and the liquid taking unit 30 is prevented from being pressed to avoid the problem of liquid leakage of the emulsion bottle caused by accidental pressing of the self-locking emulsion pump 100.

[0065] Specifically, the locking unit 40 has a first locking position and a second locking position, and the locking unit 40 switches between the first locking position and the second locking position by changing the locking position of the adjusting portion 42 and the locking portion 41. When the locking unit 40 is in the first locking position, the peripheral wall of the assembly seat 32 abuts against the inner wall of the pump body 10, and the liquid taking unit 30 is prevented from being pressed to avoid the problem of liquid leakage of the emulsion bottle caused by accidental pressing of the self-locking emulsion pump 100. Figure 1 、 Figure 7 and Figure 8At this time, the self-locking lotion pump 100 is in the locked state, and the liquid extraction unit 30 is prevented from being pressed, so as to avoid the self-locking lotion pump 100 being pressed by mistake and causing the lotion bottle to leak. When the locking unit 40 is in the second locked position, the peripheral wall of the assembly seat 32 is away from the inner wall of the pump body 10. Figure 2 、 Figure 9 and Figure 10 At this time, the self-locking lotion pump 100 is in the released state, and the liquid extraction unit 30 is allowed to be pressed to extract liquid from the bottle 200. In other words, by changing the locking positions of the adjustment portion 42 and the locking portion 41, the self-locking lotion pump 100 switches between the locked state and the released state.

[0066] It is understandable that further reference is made to the attached Figure 1 、 Figure 7 and Figure 8 When the locking unit 40 is in the first locking position, the pump chamber 60 of the self-locking lotion pump 100 has a minimum volume or tends to have a minimum volume. At this time, the self-locking lotion pump 100 is in the locked state, and the liquid collection unit 30 is prevented from being pressed, so as to avoid the self-locking lotion pump 100 being pressed by mistake and causing the lotion bottle to leak. Figure 2 、 Figure 9 and Figure 10 When the locking unit 40 is in the second locking position, the pump chamber 60 of the self-locking lotion pump 100 has a maximum volume or tends to have a maximum volume. At this time, the self-locking lotion pump 100 is in the released state, and the liquid extraction unit 30 is allowed to be pressed to extract liquid from the bottle 200.

[0067] Now go to the attached Figure 7 and Figure 8 , and combined with the attached Figure 1The locking unit 40 in the first locking position prevents the liquid taking unit 30 from being pressed, so that the fluid in the pump cavity 60 of the self-locking emulsion pump 100 and the bottle 200 cannot be discharged through the fluid channel 34 of the liquid taking unit 30 and the rod body channel 311 of the connecting rod 31, whether the emulsion bottle is being transported or carried. The peripheral wall of the assembly seat 32 of the liquid taking unit 30 reliably fits the inner wall of the pump body 10 when the locking unit 40 is in the first locking position, so that the fluid in the pump cavity 60 of the self-locking emulsion pump 100 and the bottle 200 cannot be discharged through the fluid channel 34 of the liquid taking unit 30 and the rod body channel 311 of the connecting rod 31, whether the emulsion bottle is being transported or carried, even if the emulsion bottle is tilted. The locking unit 40 in the first locking position reduces the height of the self-locking emulsion pump 100, thereby reducing the height of the emulsion bottle and the space occupied by the emulsion bottle, which helps to reduce the storage and transportation costs of the emulsion bottle. The spring 50 is located between the top of the connecting rod 31 and the adjusting portion 42 of the locking unit 40, so that the spring 50 is not excessively compressed when the locking unit 40 is in the first locking position, thereby ensuring the elasticity of the spring 50 and improving the reliability of the self-locking emulsion pump 100.

[0068] In particular, it is particularly important for the spring 50 made of plastic to be arranged between the top of the connecting rod 31 and the adjusting portion 42 to avoid excessive compression of the spring 50 when the locking unit 40 is in the first locking position. In other words, in some specific examples of the present application, the spring 50 is a plastic spring, and the specific structure of the spring 50 made of plastic will be further disclosed later.

[0069] Now turning to the drawings Figure 9 and Figure 10 and in conjunction with the drawings Figure 2, the locking unit 40 in the second locking position allows the liquid taking unit 30 to be pressed, and when the liquid taking unit 30 is pressed downward, the pump cavity 60 of the self-locking emulsion pump 100 is compressed, and the piston 33 allows the fluid passage 34 of the liquid taking unit 30 to communicate with the pump cavity 60 of the self-locking emulsion pump 100, so as to allow the fluid in the pump cavity 60 of the self-locking emulsion pump 100 to be discharged through the fluid passage 34 of the liquid taking unit 30 and the rod passage 311 of the connecting rod 31. It can be understood that when the liquid taking unit 30 is pressed downward, the spring 50 is compressed by the connecting rod 31 towards the adjusting portion 42 to generate elastic deformation and store elastic potential energy, and when the pressure applied to the liquid taking unit 30 is removed, the spring 50 pushes the connecting rod 31 upward in the process of returning to the original state, so as to make the connecting rod 31 return to the original position.

[0070] With reference to the accompanying drawings Figures 3 to 16 With reference to the accompanying drawings Figure 1 and Figure 2 The valve 20 further comprises a valve plate 21, a mounting ring 22 surrounding the valve plate 21, and at least one deformable connecting arm 23 integrally connecting the valve plate 21 and the mounting ring 22, wherein the mounting ring 22 is fixedly mounted in the pump body space 11 of the pump body 10, and the connecting arm 23 suspends the valve plate 21 in a position closing the liquid inlet passage 12 of the pump body 10. It can be understood that when the valve plate 21 moves upward to open the liquid inlet passage 12 of the pump body 10, the valve plate 21 pulls the connecting arm 23 upward, so that the connecting arm 23 is deformed in the height direction to store elastic potential energy, so as to be pulled back to the position closing the liquid inlet passage 12 of the pump body 10 by the connecting arm 23 subsequently.

[0071] In this specific example of the self-locking emulsion pump 100 of the present application, the connecting arm 23 has at least one bend between the valve plate 21 and the mounting ring 22, so as to allow the valve plate 21 to pull the connecting arm 23 to be deformed in the height direction when the valve plate 21 moves upward, and increase the stroke of the valve plate 21. Specifically, one end of the connecting arm 23 is connected to one side of the valve plate 21, and the other end of the connecting arm 23 is connected to the non-corresponding side of the mounting ring 22, so that the connecting arm 23 has at least one bend between the valve plate 21 and the mounting ring 22, so as to increase the stroke of the valve plate 21 in the height direction.

[0072] It is worth mentioning that the number of the connecting arm 23 of the valve 20 is not limited in the self-locking emulsion pump 100 of the present application. For example, in the accompanying drawings Figures 3 to 16In the specific example of the self-locking lotion pump 100 of the present invention, the valve 20 includes three connecting arms 23 , and the three connecting arms 23 are centrally symmetrically distributed between the valve plate 21 and the mounting ring 22 .

[0073] It is worth mentioning that the way in which the mounting ring 22 of the valve 20 is fixedly mounted on the pump body space 11 of the pump body 10 is not limited in the self-locking lotion pump 100 of the present invention. Figures 3 to 16 In the specific example of the self-locking lotion pump 100 shown, the shape and size of the outer wall of the mounting ring 22 match the shape and size of the inner wall of the pump body 10. After the mounting ring 22 is inserted into the pump body space 11 of the pump body 10 through the top opening 13 of the pump body 10, the valve 20 can be fixedly mounted in the pump body space 11 of the pump body 10 based on the friction force generated between the outer wall of the mounting ring 22 and the inner wall of the pump body 10.

[0074] Optionally, in other examples of the self-locking lotion pump 100 of the present invention, the valve 20 may be a ball valve, which opens the liquid inlet channel 12 of the pump body 10 by moving upward as a whole.

[0075] Continue to refer to the attached Figures 3 to 16 , and combined with the attached Figure 1 and Figure 2 The liquid taking unit 30 further includes a head cap 35, which has a head cap channel 351, wherein the head cap 35 is installed on the top of the connecting rod 31, and the head cap channel 351 of the head cap 35 is connected to the rod body channel 311 of the connecting rod 31, so that when the liquid taking unit 30 is pressed downward, the fluid in the pump chamber 60 of the self-locking lotion pump 100 is discharged through the fluid channel 34 of the liquid taking unit 30, the rod body channel 311 of the connecting rod 31 and the head cap channel 351 of the head cap 35.

[0076] It is worth mentioning that the installation method of the head cap 35 and the connecting rod 31 is not limited in the self-locking lotion pump 100 of the present invention. For example, in this specific example of the self-locking lotion pump 100 of the present invention, refer to the attached Figures 5 to 10The bottom of the head cap 35 has a head cap post 352, and the top of the connecting rod 31 has a post cavity 312. The head cap post 352 of the head cap 35 is securely installed in the post cavity 312 of the connecting rod 31 based on the friction force generated between the head cap post 352 of the head cap 35 and the connecting rod 31, so as to install the head cap 35 on the top of the connecting rod 31. Preferably, the top of the connecting rod 31 has two missing grooves 313, which are symmetrically distributed on opposite sides of the post cavity 312 of the connecting rod 31. The head cap 35 has a stopper 353 on each of the opposite sides of the head cap post 352. Each of the stoppers 353 of the head cap 35 is located in each of the missing grooves 313 of the connecting rod 31, so that the head cap 35 can drive the connecting rod 31 to rotate synchronously when the head cap 35 is rotated.

[0077] The connecting rod 31 has an abutting table 314, and the top of the piston 33 can abut against the abutting table 314 of the connecting rod 31, so as to allow the connecting rod 31 to drive the piston 33 to move downward. The assembly seat 32 includes a seat body part 321 and an insertion part 322 integrally extending upward from the seat body part 321. The insertion part 322 is inserted into the rod body passage 311 of the connecting rod 31, and the bottom of the piston 33 can abut against the seat body part 321. When the bottom of the piston 33 abuts against the seat body part 321, the piston 33 prevents the fluid passage 34 from being in communication with the pump cavity 60. When the bottom of the piston 33 is away from the seat body part 321, the piston 33 allows the fluid passage 34 to be in communication with the pump cavity 60.

[0078] Specifically, the inner wall of the connecting rod 31 has a first hooking table 315, and the insertion part 322 of the assembly seat 32 has at least a second hooking table 3221 and at least an extension groove 3222. When the insertion part 322 of the assembly seat 32 is inserted into the rod body passage 311 of the connecting rod 31, the second hooking table 3221 of the insertion part 322 and the first hooking table 315 of the connecting rod 31 are hooked with each other, so as to allow the assembly seat 32 to be assembled at the bottom of the connecting rod 31. The extension groove 3222 of the assembly seat 32 forms the fluid passage 34 between the assembly seat 32 and the connecting rod 31.

[0079] Continuing to refer to the accompanying drawings Figures 5 to 10The assembly seat 32 further comprises a ring portion 323 integrally extending downward from the seat body portion 321, wherein the peripheral wall of the ring portion 323 is capable of abutting against the inner wall of the pump body 10. Specifically, when the locking unit 40 is in the first locking position and the self-locking lotion pump 100 is in the locked state, the peripheral wall of the ring portion 323 of the assembly seat 32 abuts against the inner wall of the pump body 10 to prevent the liquid taking unit 30 from being pressed and to prevent fluid in the pump cavity 60 of the self-locking lotion pump 100 from leaking; when the locking unit 40 is in the second locking position and the self-locking lotion pump 100 is in the released state, the peripheral wall of the ring portion 323 of the assembly seat 32 is away from the inner wall of the pump body 10 to allow the liquid taking unit 30 to be pressed to take liquid.

[0080] With continued reference to the drawings Figures 5 to 10 The connecting rod 31 further comprises a rod body 316 and an extension arm 317 surrounding the top of the rod body 316, the bottom of the extension arm 317 is provided with at least one arm protrusion 3171, the adjusting portion 42 is provided with at least one movable slot 421, the movable slot 421 extends along the height direction of the adjusting portion 42, and the movable slot 421 does not extend to the top and bottom of the adjusting portion 42, wherein the arm protrusion 3171 of the extension arm 317 of the connecting rod 31 is movably retained in the movable slot 421 of the adjusting portion 42, so that the adjusting portion 42 is configured to limit the maximum distance of upward movement of the connecting rod 31. Specifically, in this specific example of the self-locking lotion pump 100 of the present application, the bottom of the extension arm 317 of the connecting rod 31 is provided with two symmetrically distributed arm protrusions 3171, and correspondingly, the adjusting portion 42 is provided with two symmetrically distributed movable slots 421, and each arm protrusion 3171 of the extension arm 317 of the connecting rod 31 is movably retained in each movable slot 421 of the adjusting portion 42, respectively.

[0081] It can be understood that, since the movable slot 421 of the adjusting portion 42 is designed not to extend to the top of the adjusting portion 42, the arm protrusion 3171 of the extension arm 317 of the connecting rod 31 is prevented from being detached upward from the adjusting portion 42, so that the adjusting portion 42 is configured to limit the maximum distance of upward movement of the connecting rod 31.

[0082] By means of movably setting the arm protrusion 3171 of the extension arm 317 of the connecting rod 31 in the movable slot 421 of the adjusting portion 42, on the one hand, the self-locking emulsion pump 100 enables the connecting rod 31 to move relative to the locking unit 40 in the height direction, and the adjusting portion 42 of the locking unit 40 limits the maximum distance of upward movement of the connecting rod 31, on the other hand, when rotating the connecting rod 31 in the circumferential direction, the connecting rod 31 can drive the adjusting portion 42 to rotate, so as to change the locking position of the adjusting portion 42 and the locking portion 41, thereby changing the state of the self-locking emulsion pump 100.

[0083] Now turning to the drawings Figures 7 to 10 , and in conjunction with the drawings Figure 1 and Figure 2 The connecting rod 31 forms an accommodating cavity 318 between the rod body 316 and the extension arm 317, the top of the spring 50 extends to the accommodating cavity 318 of the connecting rod 31, the adjusting portion 42 is tubular and is sleeved on the middle part of the connecting rod 31, the bottom of the spring 50 extends to the inside of the adjusting portion 42, so that the connecting rod 31 and the adjusting portion 42 cooperate with each other to hide the spring 50, so that the spring 50 is visually invisible. In addition, the opposite ends of the spring abut against the connecting rod 31 and the adjusting portion 42 respectively, so that when driving the adjusting portion 42 to rotate relative to the locking portion 41, the spring 50 is stationary relative to the connecting rod 31 and the adjusting portion 42, so as to avoid the spring 50 being stressed and ensure the elasticity of the spring 50.

[0084] The drawings Figure 5 and Figure 6The specific structure of the spring 50 is shown. The spring 50 further comprises at least three extension legs 51, each of which extends helically around the central axis of the spring 50, and each of which has a plurality of quadrilateral hollowed parts 510 distributed at intervals along the height direction of the extension leg 51. The side parts of adjacent extension legs 51 are integral. In this way, on the one hand, when the spring 50 is compressed, the extension legs 51 can be balanced to avoid tilting of the spring 50. On the other hand, the entire height direction of the spring 50 can be compressed to increase the deformation amount of the spring 50. On the other hand, when the spring 50 is compressed, the extension legs 51 can be prevented from bulging outward, i.e., the deformation direction of the spring 50 is limited to the height direction, to avoid the compressed spring 50 scratching the inner wall of the pump body 10 and / or the connecting rod 31, thereby ensuring the hand feeling and smoothness of the user when pressing the head cap 35 of the liquid taking unit 30, and avoiding the compressed spring 50 being stuck by the inner wall of the pump body 10 and / or the connecting rod 31 to cause failure, thereby improving the reliability of the self-locking spray pump 100.

[0085] With reference to the accompanying drawings Figure 5 and Figure 6 , and with reference to the accompanying drawings Figure 1 , Figure 2 , Figures 7 to 10, each of the extension legs 51 of the plastic spring 50 comprises a top connecting portion 511, a bottom connecting portion 512, two leg portions 513 and a plurality of traction portions 514, the two leg portions 513 are spaced apart from each other, opposite ends of the top connecting portion 511 extend to and are connected to the top of the two leg portions 513 respectively, opposite ends of the bottom connecting portion 512 extend to and are connected to the bottom of the two leg portions 513 respectively, opposite ends of each of the traction portions 514 extend to and are connected to different positions of the middle of the two leg portions 513 respectively, so as to form the hollow portion 510 between adjacent two traction portions 514 and the two leg portions 513, the hollow portion 510 is formed between the uppermost one of the traction portions 514, the top connecting portion 511 and the two leg portions 513, the hollow portion 510 is formed between the lowermost one of the traction portions 514, the bottom connecting portion 512 and the two leg portions 513, one of the leg portions 513 of one of the extension legs 51 and one of the leg portions 513 of the adjacent extension leg 51 are integrated, so that each of the extension legs 51 of the spring 50 has a plurality of quadrilateral hollow portions 510 spaced apart in the height direction, so that the entire height direction of the spring 50 can be compressed, so as to facilitate increasing the deformation amount of the spring 50. When the spring 50 is compressed, the traction portions 514 of the extension legs 51 can pull the two leg portions 513, so as to limit the deformation direction of the leg portions 513 in the height direction of the spring 50, thereby preventing the leg portions 513 from deforming to the side, and further preventing the spring 50 from expanding to the surrounding.

[0086] Preferably, the thickness dimension of the traction portion 514 of the extension leg 51 is smaller than the thickness dimension of the leg portion 513, so as to not only save materials to reduce the manufacturing cost of the spring 50 while ensuring that the traction portion 514 limits the deformation direction of the spring 50, but also reduce the resistance provided by the traction portion 514 when the head cap 35 of the liquid taking unit 30 is pressed, so as to facilitate the user to press the liquid taking unit 30 smoothly.

[0087] Preferably, the hollow portion 510 formed between the two leg portions 513 and the adjacent two traction portions 514 of the extension leg 51 is a parallelogram structure, so that the spring 50 can be deformed smoothly when the user presses the liquid taking unit 30.

[0088] With reference to the accompanying drawings Figure 5 and Figure 6, the top connecting portions 511 of the adjacent extension legs 51 of the spring 50 are integrated, and the top connecting portions 511 of the extension legs 51 form a circular ring structure, the bottom connecting portions 512 of the adjacent extension legs 51 are integrated, and the bottom connecting portions 512 of the extension legs 51 form a circular ring structure, so that the spring 50 can be stably arranged between the connecting rod 31 and the adjusting portion 42 to avoid lateral displacement of the spring 50.

[0089] With reference to the accompanying drawings Figures 3 to 16 , and in combination with the Figure 1 and Figure 2 In this specific example of the self-locking lotion pump 100 of the present application, the locking portion 41 is fixedly mounted on the pump body 10, and the locking unit 40 can be switched between the first locking position and the second locking position by driving the adjusting portion 42 to rotate relative to the locking portion 41, and accordingly, the self-locking lotion pump 100 can be switched between the locked state and the released state. Alternatively, in other examples of the self-locking lotion pump 100 of the present application, the locking portion 41 is fixedly mounted on the pump body 10, and the locking unit 40 can be switched between the first locking position and the second locking position by driving the adjusting portion 42 to slide relative to the locking portion 41 in the height direction.

[0090] Specifically, now turning to the accompanying Figure 5 , Figure 6 , Figures 11 to 16 The locking portion 41 has at least one first locking slot 411, at least one second locking slot 412, and at least one sliding slot 413, the first locking slot 411 and the second locking slot 412 are located at different height positions of the locking portion 41 respectively, the sliding slot 413 extends in the height direction of the locking portion 41, and the bottom and top of the sliding slot 413 are respectively communicated with the first locking slot 411 and the second locking slot 412, the bottom of the adjusting portion 42 has at least one locking protrusion 422, when the locking protrusion 422 of the adjusting portion 42 is locked in the first locking slot 411 of the locking portion 41, the locking unit 40 is in the first locking position, so that the self-locking lotion pump 100 remains in the locked state, when the locking protrusion 422 of the adjusting portion 42 is locked in the second locking slot 412 of the locking portion 41, the locking unit 40 is in the second locking position, so that the self-locking lotion pump 100 remains in the released state, wherein the locking protrusion 422 of the adjusting portion 42 can slide along the sliding slot 413 of the locking portion 41 between the first locking slot 411 and the second locking slot 412 to change the locking position of the locking portion 41 and the adjusting portion 42.

[0091] Specifically, when the lock protrusion 422 of the adjusting portion 42 is locked in the first lock slot 411 of the locking portion 41, first, the adjusting portion 42 is driven to rotate relative to the locking portion 41 in the circumferential direction, so that the lock protrusion 422 of the adjusting portion 42 is disengaged from the first lock slot 411 of the locking portion 41 and enters the slide slot 413 of the locking portion 41, second, the adjusting portion 42 is driven to slide relative to the locking portion 41 in the height direction, so that the lock protrusion 422 of the adjusting portion 42 slides from a position corresponding to the first lock slot 411 of the locking portion 41 to a position corresponding to the second lock slot 412 of the locking portion 41, third, the adjusting portion 42 is driven to rotate relative to the locking portion 41 in the circumferential direction, so that the lock protrusion 422 of the adjusting portion 42 enters the second lock slot 412 of the locking portion 41 from the slide slot 413 of the locking portion 41, so that the lock protrusion 422 of the adjusting portion 42 is locked in the second lock slot 412 of the locking portion 41, at this time, the self-locking emulsion pump 100 is switched from the locked state to the released state.

[0092] Correspondingly, when the lock protrusion 422 of the adjusting portion 42 is locked in the second lock slot 412 of the locking portion 41, first, the adjusting portion 42 is driven to rotate relative to the locking portion 41 in the circumferential direction, so that the lock protrusion 422 of the adjusting portion 42 is disengaged from the second lock slot 412 of the locking portion 41 and enters the slide slot 413 of the locking portion 41, second, the adjusting portion 42 is driven to slide relative to the locking portion 41 in the height direction, so that the lock protrusion 422 of the adjusting portion 42 slides from a position corresponding to the second lock slot 412 of the locking portion 41 to a position corresponding to the first lock slot 411 of the locking portion 41, third, the adjusting portion 42 is driven to rotate relative to the locking portion 41 in the circumferential direction, so that the lock protrusion 422 of the adjusting portion 42 enters the first lock slot 411 of the locking portion 41 from the slide slot 413 of the locking portion 41, so that the lock protrusion 422 of the adjusting portion 42 is locked in the first lock slot 411 of the locking portion 41, at this time, the self-locking emulsion pump 100 is switched from the released state to the locked state.

[0093] It is worth mentioning that, in some embodiments of the self-locking lotion pump 100, the first lock slot 411 and the second lock slot 412 of the locking portion 41 are staggered in the projection of the same projection plane from the top view, so that the first lock slot 411, the second lock slot 412 and the sliding slot 413 of the locking portion 41 form a "Z" shape from the side view. In other embodiments of the self-locking lotion pump 100, the first lock slot 411 and the second lock slot 412 of the locking portion 41 are coincided in the projection of the same projection plane from the top view, so that the first lock slot 411, the second lock slot 412 and the sliding slot 413 of the locking portion 41 form a "[" or "]" shape from the side view. In this specific example of the self-locking lotion pump 100, referring to the attached drawings, Figures 11 to 16 The locking portion 41 is tubular and is sleeved outside the adjusting portion 42. Preferably, the locking portion 41 has two first lock slots 411, two second lock slots 412 and two sliding slots 413, the two first lock slots 411 are symmetrical, the two second lock slots 412 are symmetrical, and the two sliding slots 413 are symmetrical, wherein the adjusting portion 42 has two lock protrusions 422, and the two lock protrusions 422 are symmetrical.

[0094] Referring to the attached drawings Figure 7 , Figure 11 and Figure 13 The distance between the lock protrusion 422 of the adjusting portion 42 and the central axis of the self-locking lotion pump 100 is greater than the distance between the inner wall of the first lock slot 411 of the locking portion 41 and the central axis of the self-locking lotion pump 100, so that when no force is applied to the adjusting portion 42 or the adjusting portion 42 is under a small force, the lock protrusion 422 of the adjusting portion 42 can be reliably locked in the first lock slot 411 of the locking portion 41, so that the locking unit 40 is reliably kept in the first locking position, so that the self-locking lotion pump 100 is reliably kept in the locked state, facilitating the transportation or carrying of the lotion bottle.

[0095] Referring to the attached drawings Figure 9 , Figure 12 and Figure 16, the distance between the lock protrusion 422 of the adjusting portion 42 and the central axis of the self-locking emulsion pump 100 is less than or equal to the distance between the inner wall of the second lock slot 412 of the locking portion 41 and the central axis of the self-locking emulsion pump 100, wherein the locking portion 41 further has at least one blocking block 414 protruding from the inner wall of the locking portion 41 for forming the second lock slot 412, for blocking the end surface of the lock protrusion 422 of the adjusting portion 42, so that when no force is applied to the adjusting portion 42 or the adjusting portion 42 is under a small force, the lock protrusion 422 of the adjusting portion 42 can be reliably locked in the second lock slot 412 of the locking portion 41, so that the locking unit 40 is reliably kept in the second locking position, and the self-locking emulsion pump 100 is reliably kept in the release state, for pumping the fluid in the bottle 200. Reference is made to the accompanying drawings that show by way of example Figures 7 to 16 When the lock protrusion 422 of the adjusting portion 42 is locked in the first lock slot 411 of the locking portion 41, the locking unit 40 is in the first locking position, and the self-locking emulsion pump 100 is in the locked state, at this time, on the one hand, the peripheral wall of the ring portion 323 of the mounting seat 32 is fitted to the inner wall of the pump body 10, and the pumping unit 30 is prevented from being pressed, so as to avoid the self-locking emulsion pump 100 being pressed by mistake and causing the emulsion bottle to leak, on the other hand, the peripheral wall of the ring portion 323 of the mounting seat 32 is fitted to the inner wall of the pump body 10, even if the emulsion bottle is tilted, the fluid in the pump cavity 60 of the self-locking emulsion pump 100 will not be discharged through the fluid passage 34 of the pumping unit 30, the rod passage 311 of the connecting rod 31 and the head passage 351 of the head cap 35, and on the other hand, the self-locking emulsion pump 100 has a low height dimension, so as to reduce the space occupied by the emulsion bottle, which is beneficial to reduce the storage cost and transportation cost of the emulsion bottle, and on the other hand, the spring 50 is located between the top of the connecting rod 31 and the pump body 10, so that the self-locking emulsion pump 100 can avoid the spring 50 being excessively compressed, so as to ensure the elasticity of the spring 50 and improve the reliability of the self-locking emulsion pump 100.

[0096] In the process of rotating the head cap 35, the head cap 35 drives the adjusting part 42 to rotate synchronously through the connecting rod 31, and the adjusting part 42 generates rotation relative to the locking part 41 in the circumferential direction, so that the locking protrusion 422 of the adjusting part 42 is separated from the first locking slot 411 of the locking part 41 and enters the sliding slot 413 of the locking part 41. In this process, the spring 50 is static relative to the connecting rod 31 and the adjusting part 42, so as to avoid the spring 50 being forced to ensure the elasticity of the spring 50. In the process of pulling the head cap 35 upward, the head cap 35 drives the adjusting part 42 to move upward synchronously through the connecting rod 31, and the adjusting part 42 generates sliding relative to the locking part 41 in the height direction, so that the locking protrusion 422 of the adjusting part 42 slides from the position corresponding to the first locking slot 411 of the locking part 41 to the position corresponding to the second locking slot 412 of the locking part 41. In the process of continuing to rotate the head cap 35, the adjusting part 42 is driven to generate rotation relative to the locking part 41 in the circumferential direction, so that the locking protrusion 422 of the adjusting part 42 enters the second locking slot 412 of the locking part 41 from the sliding slot 413 of the locking part 41, so that the locking protrusion 422 of the adjusting part 42 is locked in the second locking slot 412 of the locking part 41. At this time, the self-locking lotion pump 100 is switched from the locked state to the released state.

[0097] Further, with reference to the accompanying drawings Figures 3 to 10 , and in combination with the accompanying drawings Figure 1 and Figure 2 , the self-locking lotion pump 100 further comprises a cap 70, the cap 70 has a cap perforation 71, wherein the cap 70 is installed at the position of the top opening 13 of the pump body 10 in a manner that the connecting rod 31 is movably arranged in the cap perforation 71 of the cap 70, and the distance between the inner wall of the cap 70 and the central axis of the self-locking lotion pump 100 is less than the distance between the outer wall of the locking part 41 and the central axis of the self-locking lotion pump 100, so as to prevent the locking part 41 from generating movement relative to the pump body 10 in the height direction.

[0098] Further, with reference to the accompanying drawings Figures 3 to 10 , and in combination with the accompanying drawings Figure 1 and Figure 2The self-locking emulsion pump 100 further comprises a screw cap 80, which comprises a shoulder 81 and a screw thread 82 integrally extending downward from the shoulder 81, the shoulder 81 has a shoulder hole 811, the top of the pump body 10 is assembled in the shoulder hole 811 of the shoulder 81, and the screw thread 82 can be screwed on the bottle mouth of the bottle body 200 to realize the installation of the self-locking emulsion pump 100 and the bottle body 200.

[0099] The fluid taking process of the emulsion bottle pump of the present application is as follows: When the head cap 35 of the liquid taking unit 30 is pressed downward, on one hand, the connecting rod 31 of the liquid taking unit 30 compresses the spring 50 towards the adjusting part 42, so that the spring 50 is deformed to accumulate elastic potential energy, on the other hand, in the initial stage of pressing the head cap 35, the position of the piston 33 in the pump body 10 remains unchanged, the connecting rod 31 moves downward to the position where the abutting table 314 of the connecting rod 31 abuts against the top of the piston 33, at this time, the bottom of the piston 33 is away from the seat body part 321 of the assembly seat 32, so as to allow the fluid channel 34 of the liquid taking unit 30 and the pump cavity 60 of the self-locking emulsion pump 100 to be communicated, continuing to press the head cap 35, the connecting rod 31 drives the piston 33 to move downward to reduce the volume of the pump cavity 60 of the self-locking emulsion pump 100, the fluid in the pump cavity 60 of the self-locking emulsion pump 100 is compressed and then discharged through the fluid channel 34 of the liquid taking unit 30, the rod body channel 311 of the connecting rod 31 and the head cap channel 351 of the head cap 35. In this process, the valve 20 is kept in the state of closing the liquid inlet channel 12 of the pump body 10.

[0100] When the pressure on the head cap 35 of the liquid extraction unit 30 is no longer applied, the spring 50 pushes the connecting rod 31 and the assembly seat 32 upward in the process of restoring the initial state. In the initial stage, the position of the piston 33 in the pump body 10 remains unchanged, and the connecting rod 31 and the assembly seat 32 move upward until the bottom of the piston 33 abuts against the seat portion 321 of the assembly seat 32. At this time, the piston 33 prevents the fluid channel 34 of the liquid extraction unit 30 from being connected to the pump chamber 60 of the self-locking lotion pump 100. When the connecting rod 31 and the assembly seat 32 continue to move upward, the assembly seat 32 drives the piston 33 to move upward. It can be understood that as the piston 33 moves upward, the volume of the pump chamber 60 of the self-locking lotion pump 100 increases, causing the pressure in the pump chamber 60 to be lower than the pressure in the bottle 200. At this time, the valve 20 opens the liquid inlet channel 12 of the pump body 10, allowing the fluid in the bottle 200 to be replenished into the pump chamber 60 of the self-locking lotion pump 100. When the pressure in the pump chamber 60 of the self-locking lotion pump 100 is balanced with the pressure in the bottle 200, the valve 20 is maintained in a state of closing the pump body 10 and the liquid inlet channel 12.

[0101] Attachment Figures 17 to 27 The second specific example of the self-locking lotion pump 100 of the present invention is shown. Figures 3 to 16 The self-locking lotion pump 100 shown in the figure differs in the specific structure of the locking unit 40. Specifically, the locking unit 40 further includes a fixing portion 43, which is fixedly mounted in the pump body space 11 of the pump body 10. The fixing portion 43 has a fixing cavity 431 and a guide groove 432 connected to the fixing cavity 431. The guide groove 432 extends in a spiral manner along the height direction of the fixing portion 43. The locking portion 41 is rotatably mounted in the fixing cavity 431 of the fixing portion 43. The first locking groove 411 and the second locking groove 412 of the locking portion 41 correspond to different height positions of the guide groove 432 of the fixing portion 43, respectively. The locking protrusion 422 of the adjusting portion 42 is at a position corresponding to the fixing cavity 431 of the fixing portion 43. The locking unit 40 passes through the first locking groove 411, the second locking groove 412 or the sliding groove 413 of the locking portion 41 and then extends to the guide groove 432 of the fixing portion 43. When the locking protrusion 422 of the adjusting portion 42 is locked in the first locking groove 411 of the locking portion 41, the locking unit 40 is in the first locking position, so that the self-locking lotion pump 100 is maintained in the locked state. Correspondingly, when the locking protrusion 422 of the adjusting portion 42 is locked in the second locking groove 412 of the locking portion 41, the locking unit 40 is in the second locking position, so that the self-locking lotion pump 100 is maintained in the released state.

[0102] Reference Attachment Figures 17 to 27 When the locking protrusion 422 of the adjusting portion 42 is locked in the first locking groove 411 of the locking portion 41, the locking unit 40 is in the first locking position, and the self-locking lotion pump 100 is in the locked state. At this time, on the one hand, the peripheral wall of the annular portion 323 of the assembly seat 32 is in contact with the inner wall of the pump body 10, and the liquid taking unit 30 is prevented from being pressed, so as to avoid the self-locking lotion pump 100 from being accidentally pressed and causing the lotion bottle to leak. On the other hand, the peripheral wall of the annular portion 323 of the assembly seat 32 is in contact with the inner wall of the pump body 10, and even if the lotion bottle falls over, the self-locking lotion pump 100 is in contact with the inner wall of the pump body 10. 0 will not be discharged through the fluid channel 34 of the liquid taking unit 30, the rod channel 311 of the connecting rod 31 and the head cap channel 351 of the head cap 35. On the other hand, the self-locking lotion pump 100 has a lower height dimension to reduce the space occupied by the lotion bottle, which is beneficial to reduce the storage cost and transportation cost of the lotion. On the other hand, the spring 50 is located between the top of the connecting rod 31 and the pump body 10. The self-locking lotion pump 100 can avoid the spring 50 from being over-compressed to ensure the elasticity of the spring 50 and improve the reliability of the self-locking lotion pump 100.

[0103] When the head cap 35 of the liquid taking unit 30 is rotated, the head cap 35 is rotated synchronously by the connecting rod 31, and the adjusting portion 42 is rotated relative to the locking portion 41 in the circumferential direction, so that the locking protrusion 422 of the adjusting portion 42 is separated from the first locking slot 411 of the locking portion 41 and enters the sliding slot 413 of the locking portion 41. In this process, the spring 50 is static relative to the connecting rod 31 and the adjusting portion 42, so as to avoid the spring 50 being stressed and ensure the elasticity of the spring 50. Then, the head cap 35 of the liquid taking unit 30 is continuously rotated, the head cap 35 is rotated by the connecting rod 31 and the adjusting portion 42, and the locking portion 41 is rotated in the fixed cavity 431 of the fixed portion 43, the adjusting portion 42 is allowed to slide relative to the locking portion 41 in the height direction, so that the locking protrusion 422 of the adjusting portion 42 is slid from the position corresponding to the first locking slot 411 of the locking portion 41 to the position corresponding to the second locking slot 412 of the locking portion 41. Finally, the head cap 35 of the liquid taking unit 30 is continuously rotated, the head cap 35 is rotated by the connecting rod 31, and the adjusting portion 42 is rotated relative to the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 is separated from the sliding slot 413 of the locking portion 41 and enters the second locking slot 412 of the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 is locked in the second locking slot 412 of the locking portion 41, at this time, the self-locking emulsion pump 100 is switched from the locked state to the released state.

[0104] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. Self-locking lotion pump, characterized in that: include: a spring; a valve; a pump body having a pump body space and a liquid inlet passage communicating with the pump body space, wherein the valve is configured to open or close the liquid inlet passage of the pump body; A liquid extraction unit comprising a connecting rod, an assembly seat, a piston, and a fluid passage, wherein the connecting rod has a rod channel, the assembly seat is assembled to the bottom of the connecting rod, the fluid passage is formed between the connecting rod and the assembly seat, and the fluid passage and the rod channel are connected, the piston is movably mounted on the bottom of the connecting rod, wherein the bottom of the liquid extraction unit is movably mounted in the pump body space of the pump body in a manner that the peripheral wall of the piston is in contact with the inner wall of the pump body, and the self-locking lotion pump forms a pump chamber between the liquid extraction unit and the pump body, and the piston is configured to allow or prevent the fluid passage of the liquid extraction unit from being connected to the pump chamber; and A locking unit, which includes a locking portion and an adjusting portion, wherein the locking portion is located in the pump body space of the pump body, and the locking portion is constructed to remain unchanged in height position relative to the pump body, the adjusting portion is movably mounted on the middle portion of the connecting rod and can be locked at different height positions of the locking portion, and the adjusting portion is constructed to limit the maximum distance of upward movement of the connecting rod, wherein the bottom of the spring abuts against the adjusting portion, and the top of the spring abuts against the top of the connecting rod.

2. The self-locking lotion pump according to claim 1, wherein the locking unit has a first locking position and a second locking position, and the locking unit is switched between the first locking position and the second locking position by changing the locking positions of the adjusting portion and the locking portion; when the locking unit is in the first locking position, the assembly seat abuts against the pump body, and when the locking unit is in the second locking position, the assembly seat is away from the pump body.

3. The self-locking lotion pump according to claim 2, wherein the locking portion is fixedly mounted on the pump body, and the locking unit switches between the first locking position and the second locking position by driving the adjusting portion to slide relative to the locking portion in a height direction.

4. The self-locking lotion pump according to claim 2, wherein the locking portion is fixedly mounted on the pump body, and the locking portion has at least one first locking groove, at least one second locking groove, and at least one sliding groove, the first locking groove and the second locking groove are respectively located at different height positions of the locking portion, the sliding groove extends along the height direction of the locking portion, and the bottom and top of the sliding groove are respectively connected to the first locking groove and the second locking groove, wherein the bottom of the adjusting portion has at least one locking protrusion, the locking protrusion is configured to slide from the first locking groove to the second locking groove along the sliding groove of the locking portion, when the locking protrusion of the adjusting portion is locked in the first locking groove of the locking portion, the locking unit is in the first locking position, and when the locking protrusion of the adjusting portion is locked in the second locking groove of the locking portion, the locking unit is in the second locking position. 5 . The self-locking lotion pump according to claim 4 , wherein, viewed from a top view, the first locking groove and the second locking groove of the locking portion, which are connected to the same sliding groove, are staggered in projection on the same projection plane.

6. The self-locking lotion pump according to claim 4, wherein, viewed from a top view, projections of the first locking groove and the second locking groove of the locking portion, which are connected to the same sliding groove, on the same projection plane overlap.

7. The self-locking lotion pump according to claim 4, wherein a distance between the locking protrusion of the adjusting portion and a central axis of the self-locking lotion pump is greater than a distance between an inner wall of the locking portion defining the first locking groove and the central axis of the self-locking lotion pump.

8. The self-locking lotion pump according to claim 4, wherein a distance between the locking protrusion of the adjusting portion and a central axis of the self-locking lotion pump is less than or equal to a distance between an inner wall of the locking portion defining the second locking groove and the central axis of the self-locking lotion pump, wherein the locking portion comprises a blocking block protruding from an inner wall of the locking portion forming the second locking groove to block an end surface of the locking protrusion of the adjusting portion.

9. The self-locking lotion pump according to any one of claims 1 to 8, wherein the connecting rod has an abutment platform, the top of the piston can abut against the abutment platform of the connecting rod, the assembly seat includes a seat portion and an insertion portion integrally extending upward from the seat portion, the insertion portion is inserted into the rod channel of the connecting rod, and the bottom of the piston can abut against the seat portion, wherein when the bottom of the piston abuts against the seat portion, the piston prevents the fluid channel from communicating with the pump chamber, and when the bottom of the piston is away from the seat portion, the piston allows the fluid channel to communicate with the pump chamber.

10. The self-locking lotion pump according to any one of claims 1 to 8, wherein the assembly seat comprises a seat portion and an annular portion integrally extending downward from the seat portion, wherein a peripheral wall of the annular portion can be fitted to an inner wall of the pump body.

11. The self-locking lotion pump according to any one of claims 1 to 8, wherein the connecting rod comprises a rod body and an extension arm surrounding the top of the rod body, the bottom of the extension arm has at least one arm protrusion, the adjustment portion has at least one movable groove, the movable groove extends along the height direction of the adjustment portion, and the movable groove does not extend to the top and bottom of the adjustment portion, wherein the arm protrusion of the extension arm is movably mounted in the movable groove of the adjustment portion, so that the adjustment portion is configured to limit the maximum upward movement distance of the connecting rod.

12. The self-locking lotion pump according to any one of claims 1 to 8, wherein the spring is a plastic spring, wherein the spring comprises at least three extension legs, each of the extension legs extending spirally around the central axis of the spring, each of the extension legs having a plurality of quadrilateral hollow portions, the hollow portions being spaced apart from each other along the height direction of the extension leg, wherein the side portions of adjacent extension legs are integral; wherein each extension leg comprises a top connecting portion, a bottom connecting portion, two legs, and a plurality of traction portions, the two legs being spaced apart from each other, the opposite ends of the top connecting portion extending to and being connected to the tops of the two legs, the opposite ends of the bottom connecting portion extending to and being connected to the bottoms of the two legs, the opposite ends of the traction portions extending to and being connected to different positions in the middle of the two legs, so as to provide a locking mechanism between two adjacent legs. The hollow portion is formed between the traction part and the two legs, the hollow portion is formed between the uppermost traction part of these traction parts, the top connecting part and the two legs, and the hollow portion is formed between the lowermost traction part of these traction parts, the bottom connecting part and the two legs, wherein one leg of one extension leg and one leg of an adjacent extension leg are integral; wherein the top connecting parts of adjacent extension legs are integral, and the top connecting parts of these extension legs form a circular ring structure, and the bottom connecting parts of adjacent extension legs are integral, and the bottom connecting parts of these extension legs form a circular ring structure; wherein the hollow portion formed between two adjacent traction parts and two legs is a parallelogram structure; wherein the thickness dimension of the traction part is smaller than the thickness dimension of the leg.

13. Lotion bottle, characterized in that include: A bottle body; and The self-locking lotion pump according to any one of claims 1 to 12, wherein the self-locking lotion pump is mounted on the bottle.

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