Self-locking lotion pump and lotion bottle

Abstract

The present invention discloses a self-locking lotion pump and a lotion bottle, wherein the self-locking lotion pump includes a spring, a valve, a pump body, a liquid dispensing unit, and a locking unit. The valve is installed on the pump body for opening or closing the liquid inlet channel of the pump body. The bottom of the liquid dispensing unit is movably installed in the pump body space of the pump body to form a pump chamber between the liquid dispensing unit and the pump body. The locking unit includes a locking portion and an adjusting portion. The locking portion is located in the pump body space of the pump body and maintains a constant height relative to the pump body. The adjusting portion is movably fitted on the middle part of the liquid dispensing unit and can be locked at different height positions of the locking portion. The bottom of the spring abuts against the adjusting portion, and the top of the spring abuts against the liquid dispensing unit.

Description

Technical Field

[0001] The present invention relates to a lotion pump, in particular to a self-locking lotion pump and a lotion bottle. Background Art

[0002] Lotion bottles are widely used in the fields of daily chemicals and medicine. When in use, the head cap of the lotion pump of the lotion bottle is pressed downward, and the fluid in the pump chamber of the lotion pump can be discharged through the head cap channel of the head cap. At this time, the spring of the lotion pump is compressed and accumulates elastic potential energy. 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 its initial state, allowing the fluid in the bottle body of the lotion bottle to be replenished into the pump chamber of the lotion pump for discharge when the head cap is pressed next time, thereby achieving fluid pumping. The lotion pump of an existing lotion bottle is usually in a pop-up state. When transporting or carrying the lotion bottle, in order to prevent the head cap of the lotion pump from being accidentally pressed and causing leakage, the lotion bottle usually provides a cover to cover the head cap of the lotion pump. The cover is removed before use to expose the head cap of the lotion pump. When transporting or carrying, the cover is covered with the head cap to prevent the head cap from being accidentally pressed. While using a cover to cover the pump cap during transportation or carrying can prevent the pump cap from being accidentally pressed, this approach still has several drawbacks, specifically the following: First, the need to provide a cover to cover the pump cap not only increases the cost of the bottle, but also requires consideration of how to reliably cover the pump cap to prevent it from falling off during transportation or carrying. Second, using the cover to cover the pump cap increases the height of the bottle during transportation or storage, requiring more space and increasing transportation and storage costs. Summary of the Invention

[0003] An object of the present invention is to provide a self-locking lotion pump and a lotion bottle, wherein when the self-locking lotion pump is in a locked state, a liquid dispensing unit of the self-locking lotion pump is prevented from being pressed, thereby preventing the self-locking lotion pump from being accidentally pressed and causing leakage from the lotion bottle. Correspondingly, when the self-locking lotion pump is in a released state, the liquid dispensing unit of the self-locking lotion pump is allowed to be pressed to dispense liquid from the bottle body of the lotion bottle.

[0004] An object of the present invention 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 of the self-locking lotion pump can be reduced to reduce the height of the lotion bottle, thereby reducing the space occupied by the lotion bottle.

[0005] One object of the present invention is to provide a self-locking lotion pump and a lotion bottle, wherein the self-locking lotion pump is provided with a locking unit, and the locking unit is switched between a first locking position and a second locking position by changing the locking positions of an adjusting portion and a locking portion of the locking unit. When the locking unit is in the first locking position, the self-locking lotion pump is in a locked state, and when the locking unit is in the second locking position, the self-locking lotion pump is in a released state. Thus, by changing the locking positions of the adjusting portion and the locking portion, the self-locking lotion pump is switched between the locked state and the released state.

[0006] One object of the present invention is to provide a self-locking lotion pump and lotion bottle, wherein the locking unit can be switched between a first locked position and a second locked position by driving the adjustment portion to rotate relative to the locking portion. Accordingly, the self-locking lotion pump can be switched between a locked state and a released state. Preferably, the liquid extraction unit is configured to drive the adjustment portion to rotate relative to the locking portion to facilitate user operation.

[0007] An object of the present invention is to provide a self-locking lotion pump and a lotion bottle, wherein opposite ends of a spring of the self-locking lotion pump respectively abut against the liquid extraction unit and the adjustment portion, so that when the self-locking lotion pump is in a locked state, the self-locking lotion pump can prevent the spring from being over-compressed, thereby ensuring the elasticity of the spring and improving the reliability of the self-locking lotion pump.

[0008] An object of the present invention is to provide a self-locking lotion pump and lotion bottle, wherein opposite ends of the spring of the self-locking lotion pump respectively abut against the liquid extraction unit and the adjustment portion, so that when the adjustment portion is driven to rotate relative to the locking portion, the spring remains stationary relative to the liquid extraction unit and the adjustment portion, thereby preventing the spring from being subjected to force and ensuring the elasticity of the spring.

[0009] An object of the present invention is to provide a self-locking lotion pump and lotion bottle, wherein when the self-locking lotion pump is in a locked state, at least a portion of the peripheral wall of the assembly seat of the liquid extraction unit is in contact with the inner wall of the pump body to prevent liquid leakage.

[0010] According to one aspect of the present invention, the present invention provides a self-locking lotion pump, comprising:

[0011] a spring;

[0012] a valve;

[0013] 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;

[0014] 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

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] According to one embodiment of the present invention, 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, and 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.

[0020] According to one embodiment of the present invention, the locking unit further includes a fixing portion, which is fixedly mounted on the pump body space of the pump body, the fixing portion having a fixing cavity and a guide groove connected to the fixing cavity, the guide groove extending in a spiral manner along the height direction of the fixing portion, wherein the locking portion is rotatably mounted in the fixing cavity of the fixing portion, the locking portion having 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 and different height positions corresponding to the guide groove of the fixing portion, and 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, and the locking protrusion extends to the guide groove of the fixing portion after passing through the first locking groove, the second locking groove or the sliding groove of the locking portion, and 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, and 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.

[0021] According to an embodiment of the present invention, 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 their projections on the same projection plane.

[0022] According to an embodiment of the present invention, from a top view, the 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.

[0023] According to an embodiment of the present invention, 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 their projections on the same projection plane.

[0024] According to one embodiment of the present invention, 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 locking portion defining the first locking groove and the central axis of the self-locking lotion pump.

[0025] According to one embodiment of the present invention, 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 locking portion defining the second locking groove 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 forming the second locking groove, so as to block the end face of the locking protrusion of the adjusting portion.

[0026] According to one embodiment of the present invention, the connecting rod has a rest platform, the top of the piston can rest against the rest platform of the connecting rod, the assembly seat includes a seat body portion and an insertion portion extending upward from the seat body portion as a whole, the insertion portion is inserted into the rod body channel of the connecting rod, and the bottom of the piston can rest against the seat body portion, wherein when the bottom of the piston rests against the seat body portion, the piston prevents the fluid channel and the pump chamber 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 chamber to be connected.

[0027] According to one embodiment of the present invention, the assembly seat includes a seat portion and an annular portion integrally extending downward from the seat portion, and a peripheral wall of the annular portion can be fitted to the inner wall of the pump body.

[0028] According to one embodiment of the present invention, the connecting rod includes 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 part has at least one movable groove, the movable groove extends along the height direction of the adjustment part, and the movable groove does not extend to the top and bottom of the adjustment part, wherein the arm protrusion of the extension arm is movably mounted on the movable groove of the adjustment part, so that the adjustment part is constructed to limit the maximum distance that the connecting rod moves upward.

[0029] According to one embodiment of the present invention, the spring is a plastic spring, wherein the spring includes at least three extension legs, each of the extension legs extends spirally around the central axis of the spring, and each of the extension legs has a plurality of quadrilateral hollow parts, which are distributed at intervals along the height direction of the extension legs, wherein the side portions of adjacent extension legs are integral; wherein each of the extension legs includes a top connecting portion, a bottom connecting portion, two legs and a plurality of traction portions, and the two legs are arranged at intervals from each other, and the opposite ends of the top connecting portion extend to and are connected to the tops of the two legs, and the opposite ends of the bottom connecting portion extend to and are connected to the bottoms of the two legs, and the opposite ends of the traction portions extend to and are connected to different positions in the middle of the two legs, so as to form a connection between the two adjacent traction portions and the two traction portions. The hollow portion is formed between the legs, the hollow portion is formed between the uppermost traction portion of the traction portions, the top connecting portion and the two legs, and the hollow portion is formed between the lowermost traction portion of the traction portions, the bottom connecting portion 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 portions of adjacent extension legs are integral, and the top connecting portions of these extension legs form a circular ring structure, and the bottom connecting portions of adjacent extension legs are integral, and the bottom connecting portions of these extension legs form a circular ring structure; wherein the hollow portion formed between two adjacent traction portions and two legs is a parallelogram structure; wherein the thickness dimension of the traction portion is smaller than the thickness dimension of the leg.

[0030] According to another aspect of the present invention, the present invention further provides a lotion bottle, comprising a bottle body and a self-locking lotion pump mounted on the bottle body, wherein the self-locking lotion pump comprises:

[0031] a spring;

[0032] a valve;

[0033] 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;

[0034] 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

[0035] 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.

[0036] According to one aspect of the present invention, the present invention provides a self-locking lotion pump, comprising:

[0037] a spring;

[0038] a valve;

[0039] a piston;

[0040] an assembly seat;

[0041] a head cap having a head cap channel;

[0042] an adjusting portion having at least one movable groove and at least one locking protrusion, wherein the movable groove extends along the height direction of the adjusting portion and does not extend to the top and bottom of the adjusting portion;

[0043] a locking portion having at least one first locking groove, at least one second locking groove, and at least one sliding groove, wherein the sliding groove extends along the height direction of the locking portion, and the first locking groove and the second locking groove are respectively connected to the bottom and the top of the sliding groove;

[0044] A connecting rod having a rod body channel and an abutment platform, wherein the head cap is mounted on the top of the connecting rod in a manner that the head cap channel and the rod body channel are connected, wherein the assembly seat is assembled to the bottom of the connecting rod in a manner that a fluid channel is formed between the assembly seat and the connecting rod, wherein the piston is movably mounted on the bottom of the connecting rod, the top of the piston can abut against or away from the abutment platform of the connecting rod, and the bottom of the piston can abut against or away from the assembly seat; and

[0045] A pump body having a pump body space and a liquid inlet channel connected to 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 against the inner wall of the pump body to form a pump chamber between the pump body and the piston, wherein the locking portion is fixedly installed in the pump body space of the pump body, wherein the adjusting portion is movably fitted on the middle portion of the connecting rod, and the locking protrusion of the adjusting portion can be locked in the first locking groove or the second locking groove 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.

[0046] According to one embodiment of the present invention, the assembly seat includes a seat body portion and an insertion portion extending upward from the seat body portion as a whole, the insertion portion is inserted into the rod body channel of the connecting rod, and the bottom of the piston can abut against or move 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 chamber from being connected, and when the bottom of the piston moves away from the seat body portion, the piston allows the fluid channel and the pump chamber to be connected.

[0047] According to one embodiment of the present invention, the assembly seat includes a seat portion and an annular portion integrally extending downward from the seat portion, and a peripheral wall of the annular portion can be fitted to the inner wall of the pump body.

[0048] According to another aspect of the present invention, the present invention further provides a self-locking lotion pump, comprising:

[0049] a spring;

[0050] a valve;

[0051] a piston;

[0052] an assembly seat;

[0053] a head cap having a head cap channel;

[0054] an adjusting portion having at least one movable groove and at least one locking protrusion, wherein the movable groove extends along the height direction of the adjusting portion and does not extend to the top and bottom of the adjusting portion;

[0055] a locking portion having at least one first locking groove, at least one second locking groove, and at least one sliding groove, wherein the sliding groove extends along the height direction of the locking portion, and the first locking groove and the second locking groove are respectively connected to the bottom and the top of the sliding groove;

[0056] a fixing portion having a fixing cavity and a guide groove communicating with the fixing cavity, wherein the guide groove extends in a spiral manner along a height direction of the fixing portion;

[0057] A connecting rod having a rod body channel and an abutment platform, wherein the head cap is mounted on the top of the connecting rod in a manner that the head cap channel and the rod body channel are connected, wherein the assembly seat is assembled to the bottom of the connecting rod in a manner that a fluid channel is formed between the assembly seat and the connecting rod, wherein the piston is movably mounted on the bottom of the connecting rod, the top of the piston can abut against or away from the abutment platform of the connecting rod, and the bottom of the piston can abut against or away from the assembly seat; and

[0058] 20. The liquid dispensing system of claim 19, wherein the piston is mounted on a pivotal portion of the pump body and adapted to engage a piston reciprocatingly to engage with the piston in the pump body to form a pump chamber. The piston is mounted on a pivotal portion of the pump body to engage with the piston in the pump chamber. The piston is mounted on a pivotal portion of the pump body to engage with the piston in the pump chamber. The piston is mounted on a pivotal portion of the pump body to engage with the piston in the pump chamber. The piston is mounted on a pivotal portion of the pump body to engage with the piston in the pump chamber. The piston is mounted on a pivotal portion of the pump body to engage with the piston in the pump chamber. The piston is mounted on a pivotal portion of the pump body to engage with the piston in the pump chamber.

[0059] According to one embodiment of the present invention, the assembly seat includes a seat body portion and an insertion portion extending upward from the seat body portion as a whole, the insertion portion is inserted into the rod body channel of the connecting rod, and the bottom of the piston can abut against or move 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 chamber from being connected, and when the bottom of the piston moves away from the seat body portion, the piston allows the fluid channel and the pump chamber to be connected.

[0060] According to one embodiment of the present invention, the assembly seat includes a seat portion and an annular portion integrally extending downward from the seat portion, and a peripheral wall of the annular portion can be fitted to the inner wall of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 The present invention is a cross-sectional schematic diagram of a lotion bottle according to a preferred embodiment of the present invention, wherein a self-locking lotion pump of the lotion bottle is in a locked state.

[0062] Figure 2 1 is a schematic cross-sectional view of the lotion bottle according to the preferred embodiment of the present invention when the self-locking lotion pump of the lotion bottle is in a released state.

[0063] Figure 3 It is a three-dimensional schematic diagram from one perspective of the self-locking lotion pump of the lotion bottle according to the above preferred embodiment of the present invention.

[0064] Figure 4 2 is a three-dimensional schematic diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention from another perspective.

[0065] Figure 5 1 is an exploded schematic diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention from one perspective.

[0066] Figure 6 1 is a schematic exploded view of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention from another perspective.

[0067] Figure 7 1 is a schematic cross-sectional view of the self-locking lotion pump of the lotion bottle in a locked state according to the preferred embodiment of the present invention, taken in one direction.

[0068] Figure 8 1 is a cross-sectional view of the self-locking lotion pump of the lotion bottle in the locked state according to the preferred embodiment of the present invention, viewed from another direction.

[0069] Figure 9 1 is a schematic cross-sectional view of the self-locking lotion pump of the lotion bottle in a released state according to the preferred embodiment of the present invention, taken in one direction.

[0070] Figure 10 1 is a schematic cross-sectional view of the self-locking lotion pump of the lotion bottle in the above preferred embodiment of the present invention in another direction in a released state.

[0071] Figure 111 is a partially cutaway schematic diagram of the self-locking lotion pump of the lotion bottle in the preferred embodiment of the present invention in a locked state.

[0072] Figure 12 1 is a partially cutaway schematic diagram of the self-locking lotion pump of the lotion bottle in the preferred embodiment of the present invention in a released state.

[0073] Figure 13 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking 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.

[0074] Figure 14 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows a second positional relationship between the locking portion and the adjusting portion of the locking unit of the self-locking lotion pump.

[0075] Figure 15 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows the third positional relationship between the locking portion and the adjusting portion of the locking unit of the self-locking lotion pump.

[0076] Figure 16 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows the fourth positional relationship between the locking portion and the adjusting portion of the locking unit of the self-locking lotion pump.

[0077] Figure 17 1 is an exploded schematic diagram from one perspective of another self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention.

[0078] Figure 18 1 is a schematic exploded view of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention from another perspective.

[0079] Figure 19 1 is a schematic cross-sectional view of the self-locking lotion pump of the lotion bottle in a locked state according to the preferred embodiment of the present invention, taken in one direction.

[0080] Figure 20 1 is a cross-sectional view of the self-locking lotion pump of the lotion bottle in the locked state according to the preferred embodiment of the present invention, viewed from another direction.

[0081] Figure 211 is a schematic cross-sectional view of the self-locking lotion pump of the lotion bottle in a released state according to the preferred embodiment of the present invention, taken in one direction.

[0082] Figure 22 1 is a schematic cross-sectional view of the self-locking lotion pump of the lotion bottle in the above preferred embodiment of the present invention in another direction in a released state.

[0083] Figure 23 1 is an exploded schematic diagram of a partial structure of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention, which describes the structural relationship between a fixing portion, a locking portion and an adjusting portion of a locking unit of the self-locking lotion pump.

[0084] Figure 24 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows a first positional relationship between the fixing portion, the locking portion, and the adjusting portion of the locking unit of the self-locking lotion pump.

[0085] Figure 25 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows a second positional relationship between the fixing portion, the locking portion, and the adjusting portion of the locking unit of the self-locking lotion pump.

[0086] Figure 26 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows the third positional relationship between the fixing portion, the locking portion, and the adjusting portion of the locking unit of the self-locking lotion pump.

[0087] Figure 27 1 is a partial structural diagram of the self-locking lotion pump of the lotion bottle according to the preferred embodiment of the present invention when switching from a self-locking state to a released state, which shows the fourth positional relationship between the fixing portion, the locking portion, and the adjusting portion of the locking unit of the self-locking lotion pump. DETAILED DESCRIPTION

[0088] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the parts set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "including", "comprising" or "having" and their variations herein is intended to cover the items and their equivalents as well as additional items set forth below. Unless otherwise specified or limited, the terms "mount", "connect", "support" and "couple" and their variations are used broadly and cover direct mounting and indirect mounting, connection, support and coupling. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings.

[0089] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in other embodiments, the number of elements may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0090] Reference is made to the accompanying drawings of the present invention. Figure 1 and Figure 2 A lotion bottle according to a preferred embodiment of the present invention will be disclosed and illustrated in the following description, wherein the lotion bottle includes a self-locking lotion pump 100 and a bottle body 200, wherein the self-locking lotion pump 100 is installed in the bottle body 200, wherein the self-locking lotion pump 100 is used to pump fluid from the bottle body 200.

[0091] Attachment Figures 3 to 16 A first specific example of the self-locking lotion pump 100 is shown, wherein the self-locking lotion pump 100 includes a pump body 10 , a valve 20 , a liquid extraction unit 30 , a locking unit 40 and a spring 50 .

[0092] Specifically, the pump body 10 has a pump body space 11 and a liquid inlet channel 12 and a top opening 13 respectively connected to 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 extraction unit 30 includes a connecting rod 31, an assembly seat 32, a piston 33, and a fluid channel 34. The connecting rod 31 has a rod channel 311. The assembly seat 32 is assembled to the bottom of the connecting rod 31. The fluid channel 34 is formed between the connecting rod 31 and the assembly seat 32, and the fluid channel 34 and the rod channel 311 are connected. The piston 33 is movably mounted on the bottom of the connecting rod 31. The bottom of the liquid extraction unit 30 is movably mounted in the pump body space 11 of the pump body 10 in such a manner that the peripheral wall of the piston 33 is in contact with the inner wall of the pump body 10. The self-locking lotion pump 100 forms a pump chamber 60 between the liquid extraction unit 30 and the pump body 10. The piston 33 is configured to allow or prevent the fluid channel 34 of the liquid extraction unit 30 from communicating with the pump chamber 60. The locking unit 40 includes a locking portion 41 and an adjusting portion 42. The locking portion 41 is located in the pump body space 11 of the pump body 10 and is configured to maintain a constant height relative to the pump body 10. The adjusting portion 42 is movably mounted on the middle portion of the connecting rod 31 and can be locked at different heights of the locking portion 41. The adjusting portion 42 is configured to limit the maximum upward movement distance 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.

[0093] When the adjustment portion 42 is locked in the lower position of the locking portion 41, the self-locking lotion pump 100 is in a locked state, and the liquid collection unit 30 is prevented from being pressed, thereby preventing the self-locking lotion pump 100 from being accidentally pressed and causing the lotion bottle to leak. When the adjustment portion 42 is locked in the upper position of the locking portion 41, the self-locking lotion pump 100 is in a released state, and the liquid collection unit 30 is allowed to be pressed to collect liquid from the bottle body 200.

[0094] Specifically, the locking unit 40 has a first locking position and a second locking position. The locking unit 40 switches between the first locking position and the second locking position by changing the locking positions 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 is in contact with the inner wall of the pump body 10. 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.

[0095] 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.

[0096] 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 dispensing unit 30 from being pressed. Thus, whether transporting the lotion bottle or carrying the lotion bottle, even if force is applied to the liquid dispensing unit 30, the fluid in the pump chamber 60 of the self-locking lotion pump 100 and the bottle body 200 will not be discharged through the fluid passage 34 of the liquid dispensing unit 30 and the rod passage 311 of the connecting rod 31. The locking unit 40 in the first locking position ensures that the peripheral wall of the assembly seat 32 of the liquid dispensing unit 30 securely adheres to the inner wall of the pump body 10. Thus, whether transporting the lotion bottle or carrying the lotion bottle, even if the lotion bottle falls over, the fluid in the pump chamber 60 of the self-locking lotion pump 100 and the bottle body 200 will not be discharged through the fluid passage 34 of the liquid dispensing unit 30 and the rod passage 311 of the connecting rod 31. When the locking unit 40 is in the first locking position, the height of the self-locking lotion pump 100 is reduced, thereby reducing the height of the lotion bottle and the space occupied by the lotion bottle. This helps reduce the storage and transportation costs of the lotion bottle. The spring 50 is located between the top of the connecting rod 31 and the adjustment portion 42 of the locking unit 40. When the locking unit 40 is in the first locking position, the self-locking lotion pump 100 can prevent the spring 50 from being over-compressed, thereby ensuring the elasticity of the spring 50 and improving the reliability of the self-locking lotion pump 100.

[0097] In particular, disposing the spring 50 between the top of the connecting rod 31 and the adjusting portion 42 to prevent the spring 50 from being over-compressed when the locking unit 40 is in the first locking position is particularly important for the spring 50 to be made of plastic. In other words, in some specific examples of the present invention, the spring 50 is a plastic spring. The specific structure of the plastic spring 50 will be further disclosed in the following.

[0098] Now go to the attached Figure 9 and Figure 10 , and combined with the attached Figure 2The locking unit 40 in the second locking position allows the liquid dispensing unit 30 to be pressed downward. When the liquid dispensing unit 30 is pressed downward, the pump chamber 60 of the self-locking lotion pump 100 is compressed, and the piston 33 allows the fluid passage 34 of the liquid dispensing unit 30 to communicate with the pump chamber 60 of the self-locking lotion pump 100, allowing the fluid in the pump chamber 60 of the self-locking lotion pump 100 to be discharged through the fluid passage 34 of the liquid dispensing unit 30 and the rod passage 311 of the connecting rod 31. It can be understood that when the liquid dispensing unit 30 is pressed downward, the spring 50 is compressed by the connecting rod 31 in a direction toward the adjustment portion 42, generating elastic deformation to accumulate elastic potential energy. When the pressure applied to the liquid dispensing unit 30 is released, the spring 50 pushes the connecting rod 31 upward during the process of returning to its original state, causing the connecting rod 31 to return to its original position.

[0099] Continue to refer to the attached Figures 3 to 16 , and combined with the attached Figure 1 and Figure 2 The valve 20 further includes a valve disc 21, a mounting ring 22 surrounding the valve disc 21, and at least one deformable connecting arm 23 integrally connecting the valve disc 21 and the mounting ring 22, wherein the mounting ring 22 is fixedly mounted on the pump body space 11 of the pump body 10, and the connecting arm 23 suspends the valve disc 21 in a position that closes the liquid inlet channel 12 of the pump body 10. It can be understood that when the valve disc 21 moves upward to open the liquid inlet channel 12 of the pump body 10, the valve disc 21 pulls the connecting arm 23 upward, causing the connecting arm 23 to deform in the height direction and accumulate elastic potential energy, so that the connecting arm 23 can subsequently pull the valve disc 21 back to the position that closes the liquid inlet channel 12 of the pump body 10.

[0100] In this specific example of the self-locking lotion pump 100 of the present invention, the connecting arm 23 has at least one bend between the valve disc 21 and the mounting ring 22. This allows the valve disc 21 to pull the connecting arm 23 to deform in the height direction when the valve disc 21 moves upward, thereby increasing the stroke of the valve disc 21. Specifically, one end of the connecting arm 23 is connected to one side of the valve disc 21, and the other end of the connecting arm 23 is connected to a non-corresponding side of the mounting ring 22, so that the connecting arm 23 has at least one bend between the valve disc 21 and the mounting ring 22, thereby increasing the stroke of the valve disc 21 in the height direction.

[0101] It is worth mentioning that the number of the connecting arms 23 of the valve 20 is not limited in the self-locking lotion pump 100 of the present invention. 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 .

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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 column 352, and the top of the connecting rod 31 has a column cavity 312. Based on the friction generated between the head cap column 352 of the head cap 35 and the connecting rod 31, the head cap column 352 of the head cap 35 is reliably installed in the column cavity 312 of 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 notches 313, and the two notches 313 are symmetrically distributed on opposite sides of the column cavity 312 of the connecting rod 31. The opposite sides of the head cap column 352 of the head cap 35 are respectively provided with a stopper 353, and each of the stoppers 353 of the head cap 35 is respectively located in each of the notches 313 of the connecting rod 31. In this way, when the head cap 35 is rotated, the head cap 35 can drive the connecting rod 31 to rotate synchronously.

[0106] The connecting rod 31 has a resting platform 314, and the top of the piston 33 can rest against the resting platform 314 of the connecting rod 31, allowing the connecting rod 31 to drive the piston 33 to move downward. The assembly seat 32 includes a seat portion 321 and an insertion portion 322 extending upward from the seat portion 321. The insertion portion 322 is inserted into the rod channel 311 of the connecting rod 31. The bottom of the piston 33 can rest against the seat portion 321. When the bottom of the piston 33 rests against the seat portion 321, the piston 33 prevents the fluid channel 34 from communicating with the pump chamber 60. When the bottom of the piston 33 is away from the seat portion 321, the piston 33 allows the fluid channel 34 to communicate with the pump chamber 60.

[0107] Specifically, the inner wall of the connecting rod 31 has a first hook platform 315, and the insertion part 322 of the assembly seat 32 has at least one second hook platform 3221 and at least one extension groove 3222. After the insertion part 322 of the assembly seat 32 is inserted into the rod body channel 311 of the connecting rod 31, the second hook platform 3221 of the insertion part 322 and the first hook platform 315 of the connecting rod 31 are hooked with each other to allow the assembly seat 32 to be assembled at the bottom of the connecting rod 31, and the extension groove 3222 of the assembly seat 32 forms the fluid channel 34 between the assembly seat 32 and the connecting rod 31.

[0108] Continue to refer to the attached Figures 5 to 10The assembly seat 32 further includes an annular portion 323 that integrally extends downward from the seat portion 321, wherein the peripheral wall of the annular 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 annular portion 323 of the assembly seat 32 abuts against the inner wall of the pump body 10 to prevent the liquid extraction unit 30 from being pressed and prevent fluid leakage from the pump chamber 60 of the self-locking lotion pump 100. 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 annular portion 323 of the assembly seat 32 is away from the inner wall of the pump body 10 to allow the liquid extraction unit 30 to be pressed to extract liquid.

[0109] Continue to refer to the attached Figures 5 to 10 The connecting rod 31 further includes a rod body 316 and an extension arm 317 surrounding the top of the rod body 316, the bottom of the extension arm 317 has at least one arm protrusion 3171, the adjustment portion 42 has at least one movable groove 421, the movable groove 421 extends along the height direction of the adjustment portion 42, and the movable groove 421 does not extend to the top and bottom of the adjustment portion 42, wherein the arm protrusion 3171 of the extension arm 317 of the connecting rod 31 is movably retained in the movable groove 421 of the adjustment portion 42, so that the adjustment portion 42 is constructed 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 invention, the bottom of the extension arm 317 of the connecting rod 31 has two symmetrically distributed arm protrusions 3171. Correspondingly, the adjustment portion 42 has two symmetrically distributed movable grooves 421. Each arm protrusion 3171 of the extension arm 317 of the connecting rod 31 is movably retained in each movable groove 421 of the adjustment portion 42.

[0110] It can be understood that since the movable groove 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 disengaging from the adjusting portion 42 upward, so that the adjusting portion 42 is constructed to limit the maximum distance of upward movement of the connecting rod 31.

[0111] By movably disposing the arm protrusion 3171 of the extension arm 317 of the connecting rod 31 in the movable groove 421 of the adjusting portion 42, on the one hand, the self-locking lotion pump 100 enables the connecting rod 31 to move relative to the locking unit 40 in the height direction, and the maximum upward movement distance of the connecting rod 31 is limited by the adjusting portion 42 of the locking unit 40. On the other hand, when the connecting rod 31 is rotated in the circumferential direction, the connecting rod 31 can drive the adjusting portion 42 to rotate, thereby changing the locking position of the adjusting portion 42 and the locking portion 41, thereby changing the state of the self-locking lotion pump 100.

[0112] Now go to the attached Figures 7 to 10 , and combined with the attached Figure 1 and Figure 2 The connecting rod 31 forms a receiving cavity 318 between the rod body 316 and the extension arm 317. The top of the spring 50 extends into the receiving cavity 318 of the connecting rod 31. The adjusting portion 42 is tubular and is fitted into the middle of the connecting rod 31. The bottom of the spring 50 extends into the interior of the adjusting portion 42. In this way, the connecting rod 31 and the adjusting portion 42 cooperate with each other to conceal the spring 50, making it visually invisible. In addition, the opposite ends of the spring respectively abut against the connecting rod 31 and the adjusting portion 42. Therefore, when the adjusting portion 42 is driven to rotate relative to the locking portion 41, the spring 50 remains stationary relative to the connecting rod 31 and the adjusting portion 42, thereby preventing the spring 50 from being subjected to force and ensuring the elasticity of the spring 50.

[0113] Attachment Figure 5 and Figure 6The specific structure of the spring 50 is shown in FIG. The spring 50 further includes at least three extension legs 51, each of which extends spirally around the central axis of the spring 50, and each of which has a plurality of quadrilateral hollow portions 510. These hollow portions 510 are spaced apart from each other along the height direction of the extension legs 51, and the sides 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 evenly stressed to prevent the spring 50 from tilting, and on the other hand, the entire height direction of the spring 50 can be compressed. On the one hand, the spring 50 can be compressed to increase the deformation of the spring 50. On the other hand, the spring 50 can prevent the extension legs 51 from expanding to the surroundings when compressed, that is, the deformation direction of the spring 50 is limited to the height direction to avoid the compressed spring 50 from scratching the pump body 10 and / or the inner wall of the connecting rod 31, thereby ensuring the user's feel and smoothness when pressing the head cap 35 of the liquid extraction unit 30, and avoiding the compressed spring 50 from being stuck by the inner wall of the pump body 10 and / or the connecting rod 31 to cause failure problems, thereby improving the reliability of the self-locking spray pump 100.

[0114] Continue to refer to the attached Figure 5 and Figure 6 , and combined with the attached Figure 1 、 Figure 2 、 Figures 7 to 10Each of the extension legs 51 of the plastic spring 50 includes a top connecting portion 511, a bottom connecting portion 512, two legs 513, and a plurality of traction portions 514. The two legs 513 are spaced apart from each other. The opposite ends of the top connecting portion 511 extend to and are connected to the tops of the two legs 513, and the opposite ends of the bottom connecting portion 512 extend to and are connected to the bottoms of the two legs 513. The opposite ends of the traction portions 514 extend to and are connected to different positions in the middle of the two legs 513 to form the hollow portion 510 between the two adjacent traction portions 514 and the two legs 513. The hollow portion 510 is formed between the uppermost traction portion 514, the top connecting portion 511, and the two legs 513. The hollow portion 510 is also formed between the lowermost traction portion 514, the bottom connecting portion 512, and the two legs 513. One leg 513 of one extension leg 51 and one leg 513 of an adjacent extension leg 51 are integrally formed. Thus, each extension leg 51 of the spring 50 has a plurality of quadrilateral hollow portions 510 spaced apart along the height direction, allowing the entire height direction of the spring 50 to be compressed, thereby increasing the deformation of the spring 50. When the spring 50 is compressed, the traction portions 514 of the extension leg 51 can pull the two legs 513, limiting the deformation direction of the legs 513 in the height direction of the spring 50, thereby preventing the legs 513 from deforming laterally and, in turn, preventing the spring 50 from expanding in all directions.

[0115] Preferably, the thickness of the traction portion 514 of the extension leg 51 is smaller than the thickness of the leg portion 513, so that while ensuring that the traction portion 514 has the function of limiting the deformation direction of the spring 50, it can not only save materials to reduce the manufacturing cost of the spring 50, but also reduce the resistance provided by the traction portion 514 when pressing the head cap 35 of the liquid taking unit 30, so that the user can press the liquid taking unit 30 smoothly.

[0116] Preferably, the hollow portion 510 formed between the two leg portions 513 and the two adjacent traction portions 514 of the extension leg 51 is a parallelogram structure, so that when the user presses the liquid extraction unit 30 , the spring 50 can be smoothly squeezed and deformed.

[0117] Continue to refer to the attached Figure 5 and Figure 6The top connecting parts 511 of the adjacent extension legs 51 of the spring 50 are integral, and the top connecting parts 511 of these extension legs 51 form a circular ring structure, and the bottom connecting parts 512 of the adjacent extension legs 51 are integral, and the bottom connecting parts 512 of these 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 part 42 to avoid lateral displacement of the spring 50.

[0118] Continue to refer to the attached Figures 3 to 16 , and combined with the attached Figure 1 and Figure 2 In this specific example of the self-locking lotion pump 100 of the present invention, the locking portion 41 is fixedly mounted on the pump body 10. By driving the adjustment portion 42 to rotate relative to the locking portion 41, the locking unit 40 can switch between the first locking position and the second locking position. Accordingly, the self-locking lotion pump 100 can switch between the locked state and the released state. Alternatively, in other examples of the self-locking lotion pump 100 of the present invention, the locking portion 41 is fixedly mounted on the pump body 10. By driving the adjustment portion 42 to slide relative to the locking portion 41 in the height direction, the locking unit 40 can switch between the first locking position and the second locking position.

[0119] Specifically, now turn to the attached Figure 5 、 Figure 6 、 Figures 11 to 16 The locking portion 41 has at least one first locking groove 411, at least one second locking groove 412 and at least one sliding groove 413. The first locking groove 411 and the second locking groove 412 are respectively located at different height positions of the locking portion 41. The sliding groove 413 extends along the height direction of the locking portion 41, and the bottom and top of the sliding groove 413 are respectively connected to the first locking groove 411 and the second locking groove 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 groove 411 of the locking portion 41, the locking protrusion 422 is locked in the first locking groove 411 of the locking portion 41. The locking unit 40 is in the first locking position to keep the self-locking lotion pump 100 in the locked state. 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 to keep the self-locking lotion pump 100 in the released state. The locking protrusion 422 of the adjusting portion 42 can slide along the sliding groove 413 of the locking portion 41 between the first locking groove 411 and the second locking groove 412 to achieve the change of the locking positions of the locking portion 41 and the adjusting portion 42.

[0120] Specifically, when the locking protrusion 422 of the adjusting portion 42 is locked in the first locking groove 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 locking protrusion 422 of the adjusting portion 42 is disengaged from the first locking groove 411 of the locking portion 41 and enters the sliding groove 413 of the locking portion 41; secondly, the adjusting portion 42 is driven to slide relative to the locking portion 41 in the height direction, so that the locking protrusion 422 of the adjusting portion 42 is disengaged from the first locking groove 411 corresponding to the locking portion 41 The first locking groove 411 slides to a position corresponding to the second locking groove 412 of the locking portion 41. Then, the adjusting portion 42 is driven to rotate relative to the locking portion 41 in the circumferential direction, so that the locking protrusion 422 of the adjusting portion 42 enters the second locking groove 412 of the locking portion 41 from the sliding groove 413 of the locking portion 41. As a result, the locking protrusion 422 of the adjusting portion 42 is locked in the second locking groove 412 of the locking portion 41. At this time, the self-locking lotion pump 100 switches from the locked state to the released state.

[0121] Correspondingly, when the locking protrusion 422 of the adjusting portion 42 is locked in the second locking groove 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 locking protrusion 422 of the adjusting portion 42 is disengaged from the second locking groove 412 of the locking portion 41 and enters the sliding groove 413 of the locking portion 41; secondly, the adjusting portion 42 is driven to slide relative to the locking portion 41 in the height direction so that the locking protrusion 422 of the adjusting portion 42 is disengaged from the second locking groove 412 corresponding to the locking portion 41 The second locking groove 412 slides to a position corresponding to the first locking groove 411 of the locking portion 41. Then, the adjusting portion 42 is driven to rotate relative to the locking portion 41 in the circumferential direction, so that the locking protrusion 422 of the adjusting portion 42 enters the first locking groove 411 of the locking portion 41 from the sliding groove 413 of the locking portion 41. As a result, the locking protrusion 422 of the adjusting portion 42 is locked in the first locking groove 411 of the locking portion 41. At this time, the self-locking lotion pump 100 switches from the released state to the locked state.

[0122] It is worth mentioning that in some embodiments of the self-locking lotion pump 100 of the present invention, from a top view, the first locking groove 411 and the second locking groove 412 of the locking portion 41 are misaligned in projection on the same projection plane, so that from a side view, the first locking groove 411, the second locking groove 412 and the sliding groove 413 of the locking portion 41 are in a "Z" shape. In other embodiments of the self-locking lotion pump 100 of the present invention, from a top view, the first locking groove 411 and the second locking groove 412 of the locking portion 41 are in a "[" or "]" shape. In this specific example of the self-locking lotion pump 100 of the present invention, refer to the attached Figures 11 to 16 The locking portion 41 is tubular and is sleeved onto the outside of the adjusting portion 42. Preferably, the locking portion 41 has two first locking grooves 411, two second locking grooves 412, and two sliding grooves 413. The two first locking grooves 411 are symmetrical, the two second locking grooves 412 are symmetrical, and the two sliding grooves 413 are symmetrical. The adjusting portion 42 has two locking protrusions 422, and the two locking protrusions 422 are symmetrical.

[0123] Reference Attachment Figure 7 、 Figure 11 and Figure 13 The distance between the locking 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 locking portion 41 defining the first locking groove 411 and the central axis of the self-locking lotion pump 100. In this way, when no force is applied to the adjusting portion 42 or the force applied to the adjusting portion 42 is small, the locking protrusion 422 of the adjusting portion 42 can be reliably locked in the first locking groove 411 of the locking portion 41, so that the locking unit 40 is reliably maintained in the first locking position, thereby reliably maintaining the self-locking lotion pump 100 in the locked state, making it easier for the lotion bottle to be transported or carried.

[0124] Reference Attachment Figure 9 、 Figure 12 and Figure 16The distance between the locking protrusion 422 of the adjusting portion 42 and the central axis of the self-locking lotion pump 100 is less than or equal to the distance between the inner wall of the locking portion 41 defining the second locking groove 412 and the central axis of the self-locking lotion 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 forming the second locking groove 412 to block the end surface of the locking protrusion 422 of the adjusting portion 42. In this way, when no force is applied to the adjusting portion 42 or the force applied to the adjusting portion 42 is small, the locking protrusion 422 of the adjusting portion 42 can be reliably locked in the second locking groove 412 of the locking portion 41, so that the locking unit 40 is reliably maintained in the second locking position, thereby ensuring that the self-locking lotion pump 100 is reliably maintained in the released state for pumping the fluid in the bottle 200.

[0125] Reference Attachment Figures 7 to 16 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.

[0126] When the head cap 35 of the liquid extraction unit 30 is rotated, the head cap 35 drives the adjusting portion 42 to rotate synchronously via the connecting rod 31, and the adjusting portion 42 rotates in the circumferential direction relative to the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 disengages from the first locking groove 411 of the locking portion 41 and enters the sliding groove 413 of the locking portion 41. During this process, the spring 50 remains stationary relative to the connecting rod 31 and the adjusting portion 42, so as to prevent the spring 50 from being subjected to force and ensure the elasticity of the spring 50. When the head cap 35 is pulled upward, the head cap 35 drives the adjusting portion 42 to move upward synchronously via the connecting rod 31, and the adjusting portion 42 slides in the height direction relative to the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 slides from a position corresponding to the first locking groove 411 of the locking portion 41 to a position corresponding to the second locking groove 412 of the locking portion 41. When the head cap 35 continues to rotate, the adjusting portion 42 is driven to rotate in the circumferential direction relative to the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 enters the second locking groove 412 of the locking portion 41 from the sliding groove 413 of the locking portion 41, thereby the locking protrusion 422 of the adjusting portion 42 is locked in the second locking groove 412 of the locking portion 41. At this time, the self-locking lotion pump 100 switches from the locked state to the released state.

[0127] Further, refer to the attached Figures 3 to 10 , and combined with the attached Figure 1 and Figure 2 The self-locking lotion pump 100 further includes a cap 70 having a cap through-hole 71, wherein the cap 70 is mounted on the top opening 13 of the pump body 10 in such a manner that the connecting rod 31 is movably disposed in the cap through-hole 71 of the cap 70, and a distance between an inner wall of the cap 70 and the central axis of the self-locking lotion pump 100 is smaller than a distance between an outer wall of the locking portion 41 and the central axis of the self-locking lotion pump 100, so as to prevent the locking portion 41 from moving relative to the pump body 10 in the height direction.

[0128] Further, please refer to the attached Figures 3 to 10 , and combined with the attached Figure 1 and Figure 2The self-locking lotion pump 100 further includes a screw cap 80, which includes a shoulder 81 and a screw thread 82 integrally extending downward from the shoulder 81. The shoulder 81 has a shoulder through-hole 811. The top of the pump body 10 is assembled into the shoulder through-hole 811 of the shoulder 81. The screw thread 82 can be screwed onto the bottle mouth of the bottle body 200 to achieve the installation of the self-locking lotion pump 100 and the bottle body 200.

[0129] The process of pumping fluid in the lotion bottle of the present invention is:

[0130] When the head cap 35 of the liquid taking unit 30 is pressed downward, on the one hand, the connecting rod 31 of the liquid taking unit 30 compresses the spring 50 toward the direction of the regulating portion 42, so that the spring 50 is deformed and accumulates 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, and the connecting rod 31 moves downward to the position where the abutment 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 assembly seat 32. The seat portion 321 allows the fluid channel 34 of the liquid extraction unit 30 to communicate with the pump chamber 60 of the self-locking lotion pump 100. Continuing to press the head cap 35, the connecting rod 31 drives the piston 33 downward, reducing the volume of the pump chamber 60 of the self-locking lotion pump 100. The fluid in the pump chamber 60 of the self-locking lotion pump 100 is compressed and discharged sequentially through the fluid channel 34 of the liquid extraction unit 30, the rod channel 311 of the connecting rod 31, and the head cap channel 351 of the head cap 35. During this process, the valve 20 remains in a state of sealing the liquid inlet channel 12 of the pump body 10.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] When the head cap 35 of the liquid extraction unit 30 is rotated, the head cap 35 drives the adjusting portion 42 to rotate synchronously via the connecting rod 31, and the adjusting portion 42 rotates circumferentially relative to the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 disengages from the first locking groove 411 of the locking portion 41 and enters the sliding groove 413 of the locking portion 41. During this process, the spring 50 remains stationary relative to the connecting rod 31 and the adjusting portion 42, thereby preventing the spring 50 from being subjected to force and ensuring the elasticity of the spring 50. Next, continue to rotate the head cap 35 of the liquid collection unit 30, and the head cap 35 drives the locking part 41 to rotate in the fixed cavity 431 of the fixed part 43 through the connecting rod 31 and the adjusting part 42. The adjusting part 42 is allowed to slide 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 groove 411 of the locking part 41 to the position corresponding to the second locking groove 412 of the locking part 41. Finally, continue to rotate the head cap 35 of the liquid collection unit 30, and the head cap 35 drives the adjusting portion 42 to rotate relative to the locking portion 41 through the connecting rod 31, so that the locking protrusion 422 of the adjusting portion 42 enters the second locking groove 412 of the locking portion 41 from the sliding groove 413 of the locking portion 41, so that the locking protrusion 422 of the adjusting portion 42 is locked in the second locking groove 412 of the locking portion 41. At this time, the self-locking lotion pump 100 switches from the locked state to the released state.

[0135] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

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, 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 and the inner wall of the pump body are in contact with each other, 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; a cap, wherein the cap has a cap through-hole, wherein the cap is mounted at the top opening of the pump body, and the connecting rod is movably disposed in the cap through-hole of the cap; as well as a locking unit comprising a locking portion and an adjusting portion, wherein the locking portion is located in the pump body space of the pump body and is configured to maintain a constant height 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 configured to limit a 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; The locking unit has a first locking position and a second locking position, and 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 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. The locking unit further includes a fixing portion, wherein the fixing portion is fixedly mounted on the pump body space of the pump body, the fixing portion has a fixing cavity and a guide groove connected to the fixing cavity, and the guide groove extends in a spiral manner along the height direction of the fixing portion, wherein the locking portion is rotatably mounted in the fixing cavity of the fixing portion, 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 and different height positions corresponding to the guide groove of the fixing portion, the sliding groove extends along the height direction of the locking portion, and the The bottom and top of the slide 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, and the locking protrusion extends to the guide groove of the fixing portion after passing through the first locking groove, the second locking groove or the slide groove of the locking portion, and the locking protrusion is configured to slide from the first locking groove to the second locking groove along the slide groove of the locking portion, and 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.

2. The self-locking lotion pump according to claim 1, wherein 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 have a minimum volume, and 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 have a maximum volume.

3. The self-locking lotion pump according to claim 1, wherein, when 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.

4. The self-locking lotion pump according to any one of claims 1 to 3, 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 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.

5. The self-locking lotion pump according to any one of claims 1 to 3, wherein the assembly seat comprises a seat portion and an annular portion integrally extending downward from the seat portion, and a peripheral wall of the annular portion can be fitted to an inner wall of the pump body.

6. The self-locking lotion pump according to any one of claims 1 to 3, 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.

7. The self-locking lotion pump according to any one of claims 1 to 3, 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 of the extension legs 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 space between the adjacent two 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 the 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 the two legs is a parallelogram structure; wherein the thickness dimension of the traction part is smaller than the thickness dimension of the leg.

8. Lotion bottle, characterized in that include: A bottle body; and The self-locking lotion pump according to any one of claims 1 to 7, wherein the self-locking lotion pump is mounted on the bottle.

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