A lotion pump includes a movable portion and a stationary portion. A shifting mechanism is formed on the movable portion and the stationary portion, which shifts the elastic restoring mechanism of the lotion pump between a standby state and a non-standby state as the movable portion rotates or moves
A lotion pump includes a movable portion and a stationary portion. A shifting mechanism is formed on the movable portion and the stationary portion, which shifts the elastic restoring mechanism of the lotion pump between a standby state and a non-standby state as the movable portion rotates or moves up and down. The structure of the lotion pump can prevent the spring from yielding due to compressed for a long time, while can also realize a form of locking at lower position.
대표청구항▼
1. A lotion pump, which is mounted on a container for dispensing product in the container, the lotion pump includes a movable portion and a stationary portion, when used, the movable portion is movable relative to the container, and the stationary portion remains station relative to the container, w
1. A lotion pump, which is mounted on a container for dispensing product in the container, the lotion pump includes a movable portion and a stationary portion, when used, the movable portion is movable relative to the container, and the stationary portion remains station relative to the container, wherein the lotion pump further comprises: a spring assembly, one end of which contacts or connects to the movable portion and the other end of which is fixed to the stationary portion; and a shifting mechanism having at least a first mating part and a second mating part, the first mating part comprising at least one from the group consisting of a helical rib, a helical slot, a guide strip, a cutout, and a snap ring and the second mating part comprising at least one from the group consisting of the helical rib, the helical slot, the guide strip, the cutout, and the snap ring, the first mating part and the second mating part being provided on the movable portion or the stationary portion, and the shifting mechanism is provided to mate with the spring assembly, so that when the movable portion of at least one from the group consisting of rotates in a first direction and moves upwardly, the one end of the spring assembly moves relative to the movable portion to a first position, so that the spring assembly is loaded to be brought into a standby state, and when the movable portion of at least one from the group consisting of rotates in a second direction opposite to the first direction and moves downwardly, the one end of the spring assembly moves relative to the movable portion to a second position, thus a compress force is applied on the spring assembly is reduced or goes to zero, so that the spring assembly is brought into a non-standby state. 2. The lotion pump of claim 1, wherein the shifting mechanism is provided on the movable portion. 3. The lotion pump of claim 2, wherein the second mating part of the shifting mechanism is formed on the spring assembly, when the movable portion moves relative to the container, the first mating part cooperates with the second mating part, so that the one end of the spring assembly is moved between the first position and the second position. 4. The lotion pump of claim 3, wherein the spring assembly includes a spring and a spring supporting seat, the spring supporting seat is positioned at the one end of the spring, and the second mating part is formed on the spring supporting seat. 5. The lotion pump of claim 4, wherein one of the first mating part and the second mating part is the helical rib, the other one of the first mating part and the second mating part is the helical slot, the helical rib can mate into the helical slot, so that when the movable portion rotates, the helical slot and the helical rib act with each other, so that the one end of the spring assembly moves between the first position and the second position. 6. The lotion pump of claim 5, wherein the stationary portion includes a toothed sleeve and a cylinder, the movable portion includes a press head and a piston rod, wherein the cylinder is connected to the toothed sleeve, a piston is provided on the piston rod, and at least a portion provided with the piston of the piston rod extends into inside of the cylinder, wherein one of the one end of the spring assembly and an outer wall of the cylinder includes a guide block, and the other of the one end of the spring assembly and the outer wall of the cylinder is formed with a trough, the guide block is at least partially received in the trough. 7. The lotion pump of claim 5, wherein the movable portion includes a press head, a piston rod and a piston, wherein the piston rod is connected at a lower part of the press head, and the piston is provided on the piston rod, wherein the first mating part is formed on a peripheral surface of at least one from the group consisting of the piston rod and of the piston. 8. The lotion pump of claim 5, wherein the movable portion includes a press head, a piston rod, a piston and a casing, wherein the piston rod is connected at a lower part of the press head, and the piston is provided on the piston rod, wherein the casing is sleeved outside at least one from the group consisting of the piston rod and the piston, and the first mating part is formed on an outer surface of the casing. 9. The lotion pump of claim 2, wherein the second mating part is formed on the spring assembly and wherein the first mating part is a reversed snap ring, by pulling the movable portion upwardly, the second mating part can move through the reversed snap ring so as to move from a first position to a second position, and is held in the second position by the reversed snap ring. 10. The lotion pump of claim 2, wherein the spring assembly includes at least one elastic strip. 11. The lotion pump of claim 10, wherein the spring assembly further includes at least one from the group consisting of: an annular upper spring seat, on which an upper end of the elastic strip is connected; and an annular lower spring seat, on which a lower end of the elastic strip is connected. 12. The lotion pump of claim 11, wherein the elastic strip is connected to at least one from the group consisting of the upper spring seat and the lower spring seat by a pivot, wherein when the spring assembly is compressed, the pivot pivots and folds. 13. The lotion pump of claim 11, wherein at least one from the group consisting of a first guide slot is formed on one of an inner side of the upper spring seat and the stationary portion, a first guide strip is formed on the other of the inner side of the upper spring seat and the stationary portion, and the first guide slot mates with the first guide strip; and a second guide slot is formed on one of the inner side of the lower spring seat and the stationary portion, a second guide strip is formed on the other of the inner side of the lower spring seat and the stationary portion, and the second guide slot mates with the second guide strip. 14. The lotion pump of claim 11, wherein a reversed snap part is provided at a lower part of the stationary portion, the reversed snap part secures the lower spring seat of the spring. 15. The lotion pump of claim 10, wherein the movable portion includes a press head, a piston rod and a piston, wherein the piston rod is connected at a lower part of the press head, and the piston is provided on the piston rod, the stationary portion includes a toothed sleeve and a cylinder, wherein the cylinder is connected to the toothed sleeve, and at least the portion of the piston rod provided with the piston extends into inside of the cylinder, as seen in an axial direction of the lotion pump, the elastic strip extends around at least a portion of a peripheral surface of the cylinder of the lotion pump. 16. The lotion pump of claim 3, wherein the first mating part is the guide strip, and the second mating part is the cutout, by means of rotation of the movable portion, the guide strip aligns to the cutout, thus in turn allowing the one end of the spring assembly to move between the first position and the second position. 17. The lotion pump of claim 16, wherein at least one from the group consisting of an upper locking block is provided above the guide strip and a lower locking block is provided below the guide strip; and a stop is formed at least one from the group consisting of above and below the second mating part, the stop mates with at least one from the group consisting of the upper locking block and the lower locking, so that the movable portion can only rotate in a preset direction. 18. The lotion pump of claim 1, wherein the movable portion includes a press head, a piston rod and a piston, wherein the piston rod is connected at a lower part of the press head, and the piston is provided on the piston rod, the stationary portion includes a toothed sleeve and a cylinder, wherein the cylinder is connected to the toothed sleeve, and at least the portion of the piston rod provided with the piston extends into inside of the cylinder. 19. The lotion pump of claim 18, wherein a locking block is formed at one of a peripheral surface of the piston rod and a top of the toothed sleeve, and a cutout is formed at the other of the peripheral surface of the piston rod and the top of the toothed sleeve, thus by rotating the piston rod, the locking block aligns with the cutout, thus allowing the press head and the piston rod to move upwardly. 20. The lotion pump of claim 19, wherein the second mating part of the shifting mechanism is formed on the spring assembly, one of the first mating part and the second mating part is the helical rib, and the other one of the first mating part and the second mating part is the helical slot, as the movable portion rotates, the helical rib can disengage from the helical slot, and a size and a relative position of the helical rib and the helical slot are set such that as the movable portion rotates, the helical rib disengages from the helical slot prior to alignment of the locking block to the cutout.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.