Pressing pump, lotion bottle and plastic spring

Abstract

The utility model discloses a kind of pressing pump, emulsion bottle and plastic spring, wherein the pressing pump includes pump shell, first valve body, connecting rod, piston, second valve body, lock cover, elastic element, head cap and pump cover, the pump shell has pump cavity and liquid inlet hole, the first valve body can open and close the liquid inlet hole, the connecting rod has stem passage and lock convex, the piston has transverse flow channel and longitudinal flow channel, the piston is installed in the connecting rod and is movably installed in the pump cavity, and the piston is attached to the inner wall of the pump shell, the second valve body can open and close the longitudinal flow channel, the lock cover has track and retaining groove, the lock cover is sleeved in the connecting rod and installed in the pump cavity, the lock convex protrudes into the track, and the lock convex slides into the retaining groove from the track, the elastic element is abutted to the pump shell and the lock cover, the head cap has head cap passage, the head cap is installed in the connecting rod, and the pump cover is installed in the top of the pump shell.

Description

Technical Field

[0001] This utility model relates to a pump body, and more particularly to a press pump, a lotion bottle, and a plastic spring. Background Technology

[0002] A push-button pump is a device that dispenses fluids such as emulsions from a bottle by pressing a cap, and it has a wide range of applications in daily life. For example, in Chinese utility model patent CN212354969U, the inventor discloses a push-button pump, which includes a push-button, a connecting column, a thread, a locking cap, a body, a main column, a secondary column, a piston, and a pressure spring. The push-button includes an inlet channel, an outlet channel, and a cylindrical sleeve surrounding the inlet channel. A guide sleeve communicating with the inner cavity of the thread is provided on the top plate of the thread. The locking cap is inserted into the body, and the piston is located in the piston position of the secondary column. The secondary column is inserted into the main column. The upper end of the connecting column is inserted into the inlet channel, and the lower end of the connecting column is inserted into the main column. The main column and the locking cap are slidably fitted. The locking cap has an annular seat plate, which includes a guide hole located in the center, an arc-shaped through hole communicating with the guide hole, and two guide protrusions. The main column includes a cavity with a lower opening at the bottom, an axial guide groove, a through-hole groove above the axial guide groove, two locking grooves, and two arc-shaped seat plates. The connecting column has two locking protrusions. The main column slides into the guide hole, the guide protrusions slide into the axial guide groove, the lower end of the pressure spring engages with the annular seat plate, and the upper end engages with the arc-shaped seat plate. The locking protrusions engage with the locking grooves. In the locked state, the piston engages with the lower end of the lock cover, the lower part of the connecting column extends into the main column, the locking protrusion engages with the lower end of the locking groove, and the pressure spring is in its initial preload state. In the working state, the locking protrusion engages with the upper end of the locking groove, the lower end of the connecting column engages with the upper end of the main column, and a liquid seal is formed. When the pump switches from the working state to the locking state, firstly, rotate the pusher head clockwise. The connecting column rotates with the pusher head, and the locking protrusion leaves the upper locking groove and aligns with the axial groove. Next, press the pusher head down, and the connecting column and pusher head move downward together. When the locking protrusion aligns with the lower locking groove, rotate the pusher head clockwise again, and the locking protrusion locks with the lower locking groove. During the movement, the main column remains relatively stationary. When the pump switches from the locking state to the working state, firstly, rotate the pusher head counterclockwise, and the connecting column rotates with the pusher head. The locking protrusion leaves the lower locking groove and aligns with the axial groove. Next, pull the pusher head up, and the connecting column and pusher head move upward together. When the locking protrusion aligns with the upper locking groove, rotate the pusher head counterclockwise again, and the locking protrusion locks with the upper locking groove. The drawback of existing press heads is that switching the press head from the open state to the locked state requires multiple actions, including rotating the press head clockwise, pressing down the press head, and rotating the press head clockwise again. Switching from the locked state to the open state also requires multiple actions, including rotating the press head counterclockwise, pulling up the press head, and rotating the press head counterclockwise again. This not only makes the operation process cumbersome, but also requires the locking protrusion to be aligned with the upper or lower locking groove before the press head can be rotated, resulting in a poor feel. Utility Model Content

[0003] One objective of this invention is to provide a press pump, a lotion bottle, and a plastic spring, wherein the user only needs to rotate the cap to switch the press pump from a locked state to an unlocked state. Compared with the existing press pumps that require multiple actions such as "rotating the press head counterclockwise, pulling up the press head, and rotating the press head counterclockwise" to unlock, the operation process of the press pump of this invention is more in line with the user's habits and is more convenient for the user.

[0004] One objective of this invention is to provide a press pump, a lotion bottle, and a plastic spring, wherein the user only needs to press the cap and then rotate the cap to switch the press pump from an unlocked state to a locked state. Compared to the existing press pumps that require multiple actions such as "rotating the press head clockwise, pressing down the press head, and rotating the press head clockwise" to achieve locking, the operation process of the press pump of this invention is more in line with the user's habits and is more convenient for the user.

[0005] According to one embodiment of the present invention, a push-button pump is provided, comprising: A pump housing having a pump chamber and an inlet port communicating with the bottom of the pump chamber; A first valve body is configured to open and close the inlet port of the pump housing; A connecting rod having a rod body channel and a locking lug located in the middle of the connecting rod; A piston having a transverse flow channel and a longitudinal flow channel extending upward from the transverse flow channel, the piston being fixedly mounted to the bottom of the connecting rod and movably mounted to the pump chamber of the pump housing, and the outer wall of the piston being in contact with the inner wall of the pump housing; The second valve body is configured to open and close the longitudinal flow channel of the piston; A locking cover has an inner wall having a track extending spirally along the height direction and a retaining groove located at the top of the track. The locking cover is fitted onto the connecting rod and the pump chamber is movably mounted on the pump housing. The locking protrusion of the connecting rod protrudes into the track of the locking cover, and the locking protrusion of the connecting rod can slide from the track of the locking cover into the retaining groove. An elastic element, with its opposite ends abutting against the pump housing and the lock cover respectively; A cap having a cap channel, the cap being mounted on the top of the connecting rod in a manner that connects the cap channel and the rod body channel; and The pump cover is mounted on top of the pump housing in a manner that fits into the middle of the connecting rod.

[0006] According to one embodiment of the present invention, the track of the pump housing is a groove.

[0007] According to one embodiment of the present invention, the bottom of the retaining groove of the lock cover is lower than the top of the track.

[0008] According to one embodiment of the present invention, the inner wall of the pump housing has a limiting groove extending along the height direction, and the top of the locking cover has a limiting ear, the limiting ear of the locking cover protruding into the limiting groove of the pump housing.

[0009] According to one embodiment of the present invention, the second valve body and the connecting rod are integral.

[0010] According to one embodiment of the present invention, the pump cover has a spirally extending abutment surface, an upwardly extending clearance groove from the abutment surface, and a locking groove located at the bottom of the abutment surface. The connecting rod has an abutment ring and an abutment post in the middle. When the press pump is in the locked state, the locking protrusion of the connecting rod is located at the bottom of the track of the lock cover, and the top of the abutment post of the connecting rod abuts against the abutment surface of the pump cover and is located in the locking groove. When the press pump is in the unlocked state, the locking protrusion of the connecting rod is located in the retaining groove of the lock cover, the abutment ring of the connecting rod abuts against the abutment surface of the pump cover, and the abutment post of the connecting rod is located in the clearance groove of the pump cover.

[0011] According to one embodiment of the present invention, the elastic element is a plastic spring.

[0012] According to one embodiment of the present invention, the elastic element includes a top ring, a middle ring, a bottom ring, a plurality of top extension legs, a plurality of inclined top traction legs, a plurality of bottom extension legs, and a plurality of inclined bottom traction legs. The top ring, the middle ring, and the bottom ring are spaced apart from each other and arranged parallel to each other. Each of the top extension legs extends spirally between the top ring and the middle ring. The opposite ends of each of the top traction legs are respectively connected to two adjacent top extension legs, and the inclination direction of the top traction legs is opposite to that of the top extension legs. Each of the bottom extension legs extends spirally between the middle ring and the bottom ring. The opposite ends of each of the bottom traction legs are respectively connected to two adjacent bottom extension legs, and the inclination direction of the bottom traction legs is opposite to that of the bottom extension legs.

[0013] According to one embodiment of the present invention, the spiral direction of the top extension leg is opposite to that of the bottom extension leg.

[0014] According to another aspect of the present invention, the present invention further provides a lotion bottle, which includes a bottle body and a pump, the pump being mounted on the bottle body, wherein the pump includes: A pump housing having a pump chamber and an inlet port communicating with the bottom of the pump chamber; A first valve body is configured to open and close the inlet port of the pump housing; A connecting rod having a rod body channel and a locking lug located in the middle of the connecting rod; A piston having a transverse flow channel and a longitudinal flow channel extending upward from the transverse flow channel, the piston being fixedly mounted to the bottom of the connecting rod and movably mounted to the pump chamber of the pump housing, and the outer wall of the piston being in contact with the inner wall of the pump housing; The second valve body is configured to open and close the longitudinal flow channel of the piston; A locking cover has an inner wall having a track extending spirally along the height direction and a retaining groove located at the top of the track. The locking cover is fitted onto the connecting rod and the pump chamber is movably mounted on the pump housing. The locking protrusion of the connecting rod protrudes into the track of the locking cover, and the locking protrusion of the connecting rod can slide from the track of the locking cover into the retaining groove. An elastic element, with its opposite ends abutting against the pump housing and the lock cover respectively; A cap having a cap channel, the cap being mounted on the top of the connecting rod in a manner that connects the cap channel and the rod body channel; and The pump cover is mounted on top of the pump housing in a manner that fits into the middle of the connecting rod.

[0015] According to another aspect of the present invention, a plastic spring is further provided, comprising a top ring, a middle ring, a bottom ring, a plurality of top extension legs, a plurality of inclined top traction legs, a plurality of bottom extension legs, and a plurality of inclined bottom traction legs. The top ring, the middle ring, and the bottom ring are spaced apart from each other and arranged parallel to each other. Each of the top extension legs extends spirally between the top ring and the middle ring. The opposite ends of each of the top traction legs are respectively connected to two adjacent top extension legs, and the inclination direction of the top traction legs is opposite to that of the top extension legs. Each of the bottom extension legs extends spirally between the middle ring and the bottom ring. The opposite ends of each of the bottom traction legs are respectively connected to two adjacent bottom extension legs, and the inclination direction of the bottom traction legs is opposite to that of the bottom extension legs.

[0016] According to one embodiment of the present invention, the spiral direction of the top extension leg is opposite to that of the bottom extension leg. Attached Figure Description

[0017] Figure 1This is a cross-sectional schematic diagram of a lotion bottle in a preferred embodiment of the present invention.

[0018] Figure 2 This is a cross-sectional schematic diagram of another state of the emulsion bottle according to the above-described preferred embodiment of the present invention.

[0019] Figure 3 This is a perspective view of a pump on a lotion bottle in a locked state according to the above-described preferred embodiment of the present invention.

[0020] Figure 4 This is a perspective view of the pump of the lotion bottle in the locked state according to the above-described preferred embodiment of the present invention.

[0021] Figure 5 This is an exploded view of the pump of the lotion bottle according to the above-described preferred embodiment of the present invention.

[0022] Figure 6 This is an exploded view of the pump of the lotion bottle according to the above-described preferred embodiment of the present invention.

[0023] Figure 7 This is a cross-sectional view of the pump of the lotion bottle in the locked state according to the above-described preferred embodiment of the present invention.

[0024] Figure 8 This is a three-dimensional cross-sectional view of the pump of the lotion bottle in the locked state according to the above-described preferred embodiment of the present invention.

[0025] Figure 9 This is a three-dimensional cross-sectional view of the pump of the lotion bottle in the unlocked state according to the above-described preferred embodiment of the present invention.

[0026] Figure 10 This is a perspective view of a partial location of the pump on the lotion bottle according to the above-described preferred embodiment of the present invention.

[0027] Figure 11 This is an exploded view of a partial location of the pump on the lotion bottle according to the above-described preferred embodiment of the present invention.

[0028] Figure 12 This is a perspective view of the partial position of the pump of the lotion bottle according to the above-described preferred embodiment of the present invention when the pump is in the locked state.

[0029] Figure 13This is a perspective view of the partial position of the pump of the lotion bottle according to the above-described preferred embodiment of the present invention during the unlocking process of the pump.

[0030] Figure 14 This is a perspective view of the partial position of the pump of the lotion bottle according to the above-described preferred embodiment of the present invention when the pump is in the unlocked state.

[0031] Figure 15 This is a three-dimensional cross-sectional view of the pump of the lotion bottle in the locked state according to the above-described preferred embodiment of the present invention.

[0032] Figure 16 This is a perspective view of the pump cap of the emulsion bottle according to the above-described preferred embodiment of the present invention.

[0033] Figure 17 This is a perspective view of a partial location of the pump on the lotion bottle according to the above-described preferred embodiment of the present invention.

[0034] Figure 18 This is a perspective view of the partial position of the pump of the lotion bottle according to the above-described preferred embodiment of the present invention during the unlocking process of the pump.

[0035] Figure 19 This is a three-dimensional cross-sectional view of the pump of the lotion bottle in the locked state according to the above-described preferred embodiment of the present invention. Detailed Implementation

[0036] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0037] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0038] Refer to the accompanying drawings of the specification of this utility model. Figures 1 to 19 A preferred embodiment of the present invention will be disclosed and described in the following description, wherein the emulsion bottle includes a pump 10 and a bottle body 20, the pump 10 being mounted on the bottle body 20, the pump 10 being used to pump out fluids such as emulsion contained in the bottle body 20.

[0039] Specifically, the press pump 10 includes a pump housing 11, a first valve body 12, a connecting rod 13, a piston 14, a second valve body 15, a locking cover 16, an elastic element 17, a head cap 18, and a pump cover 19.

[0040] The pump housing 11 has a pump chamber 111 and a liquid inlet 112, the liquid inlet 112 being connected to the bottom of the pump chamber 111. The first valve body 12 is configured to open and close the liquid inlet 112 of the pump housing 11. When the first valve body 12 opens the liquid inlet 112 of the pump housing 11, fluids such as emulsions in the bottle 20 are allowed to enter the pump chamber 111 of the pump housing 11. When the first valve body 12 closes the liquid inlet 112 of the pump housing 11, fluids such as emulsions in the pump chamber 111 of the pump housing 11 are prevented from entering the bottle 20.

[0041] It is worth mentioning that the specific type of the first valve body 12 is not limited in the emulsion bottle of this utility model. For example, in the appendix Figures 1 to 19In this specific example of the emulsion bottle of the present invention, the first valve body 12 includes a first valve plate 121, a valve ring 122 surrounding the first valve plate 121, and a plurality of first valve legs 123 extending between the first valve plate 121 and the valve ring 122. The valve ring 122 is fixedly mounted to the pump housing 11 such that the first valve body 12 is disposed in the pump chamber 111 of the pump housing 11. For example, the valve ring 122 can be engaged with the bottom of the pump housing 11 so that the valve ring 122 is fixedly mounted to the pump housing 11. When the pressure inside the pump chamber 111 of the pump housing 11 is equal to the pressure inside the bottle 20, the first valve plate 121 is held closed to the inlet port 112 of the pump housing 11. When the pressure inside the pump chamber 111 of the pump housing 11 is less than the pressure inside the bottle 20, the first valve plate 121 is pushed away from the bottom of the pump housing 11 by the emulsion or other fluid inside the bottle 20, thereby opening the inlet port 112 of the pump housing 11. At this time, each of the first valve legs 123 is stretched and deformed to accumulate elastic potential energy. When the pressure inside the pump chamber 111 of the pump housing 11 and the pressure inside the bottle 20 returns to the same level, each of the first valve legs 123 pulls back the first valve plate 121 during the process of returning to the initial state, so that the first valve plate 121 resets and closes the inlet port 112 of the pump housing 11. Optionally, in other specific examples of the emulsion bottle of this utility model, the first valve body 12 can be a ball valve.

[0042] The connecting rod 13 has a rod body channel 131 and at least one locking protrusion 132, the locking protrusion 132 being located in the middle of the connecting rod 13. Preferably, the locking protrusion 132 of the connecting rod 13 is cylindrical. The piston 14 has a transverse flow channel 141 and a longitudinal flow channel 142 extending upward from the transverse flow channel 141, wherein the piston 14 is fixedly mounted to the bottom of the connecting rod 131, and the piston 14 is movably mounted to the pump chamber 111 of the pump housing 11 such that the outer wall of the piston 14 is in contact with the inner wall of the pump housing 11, the transverse flow channel 141 of the piston 14 and the pump chamber 111 of the pump housing 11 are connected. The second valve body 15 is configured to open and close the longitudinal flow channel 142 of the piston 14. When the second valve body 15 opens the longitudinal flow channel 142 of the piston 14, fluids such as emulsions in the pump chamber 111 of the pump housing 11 are allowed to enter the rod passage 131 of the connecting rod 13 through the transverse flow channel 141 and the longitudinal flow channel 142 of the piston 14.

[0043] Preferably, the piston 14 has a top-opening mounting groove 143 and a column tube 144 extending upward from the bottom of the mounting groove 143. The bottom of the connecting rod 13 is inserted into the mounting groove 143 of the piston 14, and the column tube 144 protrudes into the rod body channel 131 of the connecting rod 13, so that the piston 14 is fixedly mounted on the bottom of the connecting rod 13.

[0044] It is worth mentioning that the specific type of the second valve body 15 is not limited in the emulsion bottle of this utility model; for example, in the attached... Figures 1 to 19 In this specific example of the emulsion bottle of the present invention shown, the second valve body 15 includes a second valve plate 151 and a plurality of second valve legs 152. The second valve plate 151 is located in the rod channel 131 of the connecting rod 13. Each of the second valve legs 152 extends between the second valve plate 151 and the connecting rod 13. In its natural state, the second valve legs 152 are used to keep the second valve plate 151 in contact with the end face of the column tube 144 of the piston 14, so that the second valve body 15 prevents the longitudinal flow channel 142 of the piston 14 and the rod channel 131 of the connecting rod 13 from communicating, thereby reducing the pressure within the pump chamber 111 of the pump housing 11. When the pressure is greater than that in the rod channel 131 of the connecting rod 13, the second valve plate 151 is pushed away from the end face of the column tube 144 of the piston 14 by the fluid such as emulsion, so as to open the longitudinal flow channel 142 of the piston 14. At this time, each of the second valve legs 152 is stretched and deformed to accumulate elastic potential energy. When the pressure in the pump chamber 111 of the pump housing 11 and the pressure in the rod channel 131 of the connecting rod 13 return to the same level, each of the second valve legs 152 pulls back the second valve plate 151 in the process of returning to the initial state, so that the second valve plate 151 closes and prevents the longitudinal flow channel 142 of the piston 14 and the rod channel 131 of the connecting rod 13 from connecting.

[0045] The locking cover 16 has a locking cover through hole 161, at least one track 162, and at least one retaining groove 163. Both the track 162 and the retaining groove 163 are formed on the inner wall of the locking cover 16, with the track 162 extending spirally along the height direction of the locking cover 16. The retaining groove 163 is located at the top of the track 162. One end of the connecting rod 13 passes through the locking cover through hole 161 of the locking cover 16, so that the locking cover 16 is fitted onto the connecting rod 13. The locking protrusion 132 of the connecting rod 13 protrudes into the track 162 of the locking cover 16 and can slide from the track 162 into the retaining groove 163. The locking cover 16 is movably mounted vertically on the pump chamber 111 of the pump housing 11. Preferably, the track 162 of the lock cover 16 is a groove, and the locking protrusion 132 of the connecting rod 13 protrudes into the groove of the lock cover 16 to prevent the locking protrusion 132 of the connecting rod 13 from generating undesirable movement relative to the lock cover 16.

[0046] The bottom of the elastic element 17 abuts against the pump housing 11, and the top of the elastic element 17 abuts against the locking cover 16. When the locking cover 16 moves downward within the pump chamber 111 of the pump housing 11, the locking cover 16 and the pump housing 11 compress the elastic element 17, causing the elastic element 17 to deform and accumulate elastic potential energy. During the process of the elastic element 17 returning to its initial state, the elastic element 17 pushes the locking cover 16 upward.

[0047] The cap 18 has a cap channel 181, and the cap 18 is installed on the top of the connecting rod 13. The cap channel 181 of the cap 18 is connected to the rod body channel 131 of the connecting rod 13. Specifically, the cap 18 has an insertion post 182, through which the cap channel 181 passes. The insertion post 182 of the cap 18 is inserted into the top of the connecting rod 13 to install the cap 18 on the top of the connecting rod 13.

[0048] The pump cover 19 has a pump cover channel 191. After one end of the connecting rod 13 passes through the pump cover channel 191 of the pump cover 19, the pump cover 19 is fitted onto the middle of the connecting rod 13, and the pump cover 19 is installed on the top of the pump housing 11. Specifically, the pump cover 19 has an insertion slot 194, and the top of the pump housing 11 is inserted into the insertion slot 194 of the pump cover 19 to install the pump cover 19 on the top of the pump housing 11.

[0049] The press pump 10 has a locked state and an unlocked state, and the press pump 10 can switch between the locked state and the unlocked state. When the press pump 10 is in the locked state, the locking protrusion 132 of the connecting rod 13 is located at the bottom of the track 162 of the lock cover 16. At this time, the pump cover 19 abuts against the cap 18 to prevent the cap 18 from being pressed. When the cap 18 is rotated in one direction, the cap 18 drives the connecting rod 13 to rotate synchronously. The locking protrusion 132 of the connecting rod 13 slides along the track 162 of the lock cover 16 and slides into the retaining groove 163 at the top of the track 162 to switch the press pump 10 to the unlocked state. At this time, the cap 18 is away from the pump cover 19 to allow the cap 18 to be pressed. In other words, the user only needs to rotate the head cap 18 to switch the press pump 10 from the locked state to the unlocked state. Compared with the existing press pumps that require multiple actions such as "rotating the press head counterclockwise, pulling up the press head, and rotating the press head counterclockwise" to unlock, the operation process of the press pump 10 of this utility model is more in line with the user's usage habits and is more convenient for the user.

[0050] Preferably, refer to the appendix Figure 11 and Figure 14 The bottom of the retaining groove 163 of the lock cover 16 is lower than the top of the track 162. When the cap 18 is pressed and released, the lock cover 16 can prevent the locking protrusion 132 of the connecting rod 13 from exiting the retaining groove 163 of the lock cover 16, so that the pressing pump 10 can be reliably held in the unlocked state.

[0051] In the appendix Figures 1 to 19 In this specific example of the emulsion bottle of the present invention shown, the connecting rod 13 has two locking protrusions 132, which are symmetrically arranged on opposite sides of the connecting rod 13. Correspondingly, the locking cap 16 has two tracks 162 and two retaining grooves 163. Thus, when the press pump 10 is switched to the unlocked state and the cap 18 is pressed, the two locking protrusions 132 of the connecting rod 13 can apply pressure to the locking cap 16 on opposite sides, so that the locking cap 16 is evenly stressed.

[0052] Furthermore, the inner wall of the pump housing 11 has at least one limiting groove 113 extending along the height direction. Correspondingly, the top of the locking cover 16 has at least one limiting ear 164, which protrudes into the limiting groove 113 of the pump housing 11. In this way, the movement of the locking cover 16 within the pump chamber 111 of the pump housing 11 is limited to the height direction. In other words, the locking cover 16 can only move along the height direction within the pump chamber 111 of the pump housing 11 and cannot rotate relative to the pump housing 11.

[0053] Preferably, in the appendix Figures 1 to 19 In this specific example of the emulsion bottle of the present invention shown, the pump housing 11 has two limiting grooves 113, which are arranged symmetrically. Correspondingly, the locking cap 16 has two limiting ears 164, which are also arranged symmetrically. Each limiting ear 164 of the locking cap 16 protrudes into each limiting groove 113 of the pump housing 11.

[0054] Continue to refer to the appendix Figure 11 , Figures 15 to 19 The pump cover 19 has a spirally extending abutment surface 192, an upwardly extending clearance groove 193 from the abutment surface 192, and a retaining groove 195 located at the bottom of the abutment surface 192. The connecting rod 13 has an abutment ring 133 and an abutment post 134 at its middle portion. When the press pump 10 is in the locked state, the top of the abutment post 134 of the connecting rod 13 abuts against the abutment surface 192 of the pump cover 19 and is engaged in the retaining groove 195. When the press pump 10 is in the unlocked state, the abutment ring 133 of the connecting rod 13 abuts against the abutment surface 192 of the pump cover 19, and the abutment post 134 is located in the clearance groove 193 of the pump cover 19.

[0055] In the appendix Figures 1 to 19 In this specific example of the emulsion bottle of the present invention shown, the elastic element 17 is a plastic spring, so that the emulsion bottle can be all plastic, which facilitates the overall recycling of the emulsion bottle.

[0056] Specifically, see the attached document. Figure 5 and Figure 6The elastic element 17 includes a top ring 171, a middle ring 172, a bottom ring 173, a plurality of top extension legs 174, a plurality of inclined top traction legs 175, a plurality of bottom extension legs 176, and a plurality of inclined bottom traction legs 177. The top ring 171, the middle ring 172, and the bottom ring 173 are spaced apart and arranged parallel to each other. Each of the top extension legs 174 extends spirally between the top ring 171 and the middle ring 172. The opposite ends of each of the top traction legs 175 are connected to two adjacent top extension legs 174, and the tilt direction of the top traction legs 175 is opposite to the tilt direction of the top extension legs 174. Each of the bottom extension legs 176 extends spirally between the middle ring 172 and the bottom ring 173. The opposite ends of each of the bottom traction legs 177 are connected to two adjacent bottom extension legs 176, and the tilt direction of the bottom traction legs 177 is opposite to the tilt direction of the bottom extension legs 176.

[0057] When the elastic element 17 is pressed, on the one hand, the top extension legs 174 and the top traction legs 175 cooperate to prevent them from expanding circumferentially towards the elastic element 17 as the top ring 171 and the middle ring 172 approach each other. On the other hand, the bottom extension legs 176 and the bottom traction legs 177 cooperate to prevent them from expanding circumferentially towards the elastic element 17 as the middle ring 172 and the bottom ring 173 approach each other. This prevents the elastic element 17 from scraping against the inner wall of the pump housing 11. On the other hand, the elastic element 17 prevents the top ring 171 and the bottom ring 173 from rotating. Preferably, the helical direction of the top extension legs 174 is opposite to that of the bottom extension legs 176.

[0058] Furthermore, the press pump 10 includes a thread 110, which is installed on the top of the pump housing 11 and can be screwed onto the rim of the bottle body 20 to install the press pump 10 onto the bottle body 20.

[0059] Preferably, the press pump 10 further includes a sealing ring 120, which is disposed on the top of the pump housing 11. When the thread 110 is screwed onto the rim of the bottle body 20, the sealing ring 120 is clamped between the pump housing 11 and the rim of the bottle body 20.

[0060] Preferably, the press pump 10 further includes a straw 130, the top of which is inserted into the bottom of the pump housing 11, and the straw 130 can extend to the bottom of the bottle body 20 after the press pump 10 is installed on the bottle body 20.

[0061] When the press pump 10 is in the locked state, the locking protrusion 132 of the connecting rod 13 is located at the bottom of the track 162 of the lock cover 16, the top of the abutment post 134 of the connecting rod 13 abuts against the abutment surface 192 of the pump cover 19 and is engaged in the slot 195 of the pump cover 19, the pump cover 19 abuts against the cap 18 to prevent the cap 18 from being pressed, and the piston 14 is located at the bottom of the pump chamber 111 of the pump housing 11. It can be understood that because the top of the abutment post 134 of the connecting rod 13 is engaged in the slot 195 of the pump cover 19, the press pump 10 is reliably held in the locked state.

[0062] Reference Appendix Figures 12 to 14 When the connecting rod 13 of the cap 18 is rotated in one direction, the top of the abutment post 134 of the connecting rod 13 can disengage from the slot 195 of the pump cover 19. As the cap 18 and the connecting rod 13 continue to rotate, the locking protrusion 132 of the connecting rod 13 slides along the track 162 of the lock cover 16. During this process, the connecting rod 13 drives the lock cover 16 to move downward and compress the elastic element 17. At the same time, the top of the abutment post 134 of the connecting rod 13 slides along the abutment surface 192 of the pump cover 19 and can slide to the position corresponding to the relief groove 193 of the pump cover 19. Then the elastic element 17 returns to its initial state to push the cap 18, the connecting rod 13 and the piston 14 upward, so that the press pump 10 switches to the unlocked state. It is understood that when the press pump 10 is in the unlocked state, a portion of the abutment post 134 of the connecting rod 13 is engaged in the clearance groove 193 of the pump cover 19. That is, the abutment post 134 of the connecting rod 13 protrudes into the clearance groove 193 of the pump cover 19, preventing the connecting rod 13 from rotating relative to the pump cover 19. The piston 14 is located in the middle of the pump chamber 111 of the pump housing 11. The user can press the cap 18 to make the press pump 10 pump out the emulsion or other fluids in the bottle 20. In other words, the user only needs to rotate the cap 18 to switch the press pump 10 from the locked state to the unlocked state. Compared with the existing press pumps that require multiple actions such as "rotating the press head counterclockwise, pulling up the press head, and rotating the press head counterclockwise" to unlock, the operation process of the press pump 10 of this utility model is more in line with the user's usage habits and is more convenient for the user.

[0063] Pressing down on the cap 18 and the connecting rod 13 causes the top of the abutment post 134 of the connecting rod 13 to exit the clearance groove 193 of the pump cover 19 and causes the piston 14 to return to the bottom of the pump chamber 111 of the pump housing 11. The locking cover 16 moves downward and compresses the elastic element 17. The cap 18 and the connecting rod 13 are rotated in the opposite direction. The locking protrusion 132 of the connecting rod 13 slides along the track 162 of the locking cover 16 to the bottom of the track 162. During this process, the elastic element 17 returns to its initial state. At the same time, the top of the abutment post 134 of the connecting rod 13 slides along the abutment surface 192 of the pump cover 19 to the bottom of the abutment surface 192 and engages with the slot 195, so that the press pump 10 switches to the locked state. In other words, the user only needs to press the head cap 18 and then rotate the head cap 18 to switch the press pump 10 from the unlocked state to the locked state. Compared with the existing press pumps that require multiple actions such as "rotating the press head clockwise, pressing down the press head, and rotating the press head clockwise" to achieve locking, the operation process of the press pump 10 of this utility model is more in line with the user's usage habits and is more convenient for the user.

[0064] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A push-button pump, characterized in that, include: A pump housing having a pump chamber and an inlet port communicating with the bottom of the pump chamber; A first valve body is configured to open and close the inlet port of the pump housing; A connecting rod having a rod body channel and a locking lug located in the middle of the connecting rod; A piston having a transverse flow channel and a longitudinal flow channel extending upward from the transverse flow channel, the piston being fixedly mounted to the bottom of the connecting rod and movably mounted to the pump chamber of the pump housing, and the outer wall of the piston being in contact with the inner wall of the pump housing; The second valve body is configured to open and close the longitudinal flow channel of the piston; A locking cover has an inner wall having a track extending spirally along the height direction and a retaining groove located at the top of the track. The locking cover is fitted onto the connecting rod and the pump chamber is movably mounted on the pump housing. The locking protrusion of the connecting rod protrudes into the track of the locking cover, and the locking protrusion of the connecting rod can slide from the track of the locking cover into the retaining groove. An elastic element, with its opposite ends abutting against the pump housing and the lock cover respectively; A cap having a cap channel is mounted on the top of the connecting rod in such a way that the cap channel and the rod channel are connected; as well as The pump cover is mounted on top of the pump housing in a manner that fits into the middle of the connecting rod.

2. The push pump according to claim 1, wherein the track of the pump housing is a groove.

3. The press pump according to claim 2, wherein the bottom of the retaining groove of the locking cover is lower than the top of the track.

4. The push pump according to claim 1, wherein the inner wall of the pump housing has a limiting groove extending along the height direction, the top of the locking cover has a limiting ear, and the limiting ear of the locking cover protrudes into the limiting groove of the pump housing.

5. The press pump according to claim 1, wherein the second valve body and the connecting rod are integral.

6. The push-button pump according to any one of claims 1 to 5, wherein the pump cover has a helically extending abutment surface, an upwardly extending clearance groove from the abutment surface, and a retaining groove located at the bottom of the abutment surface; the connecting rod has an abutment ring and an abutment post at its middle portion; when the push-button pump is in a locked state, the locking protrusion of the connecting rod is located at the bottom of the track of the lock cover, the top of the abutment post of the connecting rod abuts against the abutment surface of the pump cover and is located in the retaining groove; when the push-button pump is in an unlocked state, the locking protrusion of the connecting rod is located in the retaining groove of the lock cover, the abutment ring of the connecting rod abuts against the abutment surface of the pump cover, and the abutment post of the connecting rod is located in the clearance groove of the pump cover.

7. The push pump according to any one of claims 1 to 5, wherein the elastic element is a plastic spring.

8. The press pump according to claim 7, wherein the elastic element comprises a top ring, a middle ring, a bottom ring, a plurality of top extension legs, a plurality of inclined top traction legs, a plurality of bottom extension legs, and a plurality of inclined bottom traction legs, the top ring, the middle ring, and the bottom ring being spaced apart from each other and arranged parallel to each other, each of the top extension legs extending helically between the top ring and the middle ring, each of the top traction legs having opposite ends connected to two adjacent top extension legs, and the inclination direction of the top traction legs being opposite to the inclination direction of the top extension legs, each of the bottom extension legs extending helically between the middle ring and the bottom ring, each of the bottom traction legs having opposite ends connected to two adjacent bottom extension legs, and the inclination direction of the bottom traction legs being opposite to the inclination direction of the bottom extension legs.

9. The press pump of claim 8, wherein the helical direction of the top extension leg is opposite to the helical direction of the bottom extension leg.

10. A lotion bottle, characterized in that, include: Bottle body; and The press pump according to any one of claims 1 to 9, wherein the press pump is mounted on the bottle body.

11. A plastic spring, characterized in that, The device includes a top ring, a middle ring, a bottom ring, multiple top extension legs, multiple inclined top traction legs, multiple bottom extension legs, and multiple inclined bottom traction legs. The top ring, the middle ring, and the bottom ring are spaced apart and arranged parallel to each other. Each top extension leg extends spirally between the top ring and the middle ring. The opposite ends of each top traction leg are connected to two adjacent top extension legs, and the inclination direction of the top traction leg is opposite to that of the top extension leg. Each bottom extension leg extends spirally between the middle ring and the bottom ring. The opposite ends of each bottom traction leg are connected to two adjacent bottom extension legs, and the inclination direction of the bottom traction leg is opposite to that of the bottom extension leg.

12. The plastic spring of claim 11, wherein the helical direction of the top extension leg is opposite to the helical direction of the bottom extension leg.

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