Dropper cap

Abstract

The application relates to a dropper cover which is combined with a container, wherein the dropper cover comprises a cover combination, an upper button, a side button, a piston, an elastic member and a dropper, the upper button is fixedly connected with the piston, the piston is movably installed in the cover combination, the side button is embedded in the outer wall of the cover combination, the elastic member is installed between the upper button and the cover combination, the first end of the dropper is airtightly installed in the cover combination, the second end of the dropper is inserted into the container, and the elastic member is in a compressed state when the dropper cover is combined with the bottle opening cover of the container; in response to the inward displacement of the side button under force, the elastic member is converted into a relaxed state to cause the movement of the piston, so that the material in the container is sucked into the dropper, and the dropper cover is separated from the bottle opening cover of the container. The two actions of automatic material sucking and separation from the container are sequentially completed by pressing the side button, and the use is very convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of packaging, in particular to a dropper cover with automatic material suction function. BACKGROUND

[0002] In the field of cosmetic packaging, droppers are widely used due to their convenience. In the structure of a dropper cover, the dropper cover is screwed with the bottle body. When a user needs to use the dropper to suck the cosmetic material in the bottle, the user needs to unscrew the dropper cover first, so that the dropper cover is separated from the bottle. Then, the user squeezes the rubber cap of the dropper, so that the dropper sucks the cosmetic material. After use, the user screws the dropper cover on the bottle. Therefore, the whole operation process is relatively complicated.

[0003] SUMMARY

[0004] In order to overcome the above-mentioned defects, the present application provides a dropper cover. When the dropper cover is used, the automatic material suction and the separation from the container are completed in sequence by pressing the pressing piece of the side button, so that the operation steps are reduced, and the use is very convenient.

[0005] The technical scheme adopted by the present application to solve the technical problems is as follows:

[0006] A dropper cover is combined with a container, and the dropper cover comprises a cover assembly, an upper button, a side button, a piston, an elastic member and a dropper. The upper button is fixedly connected with the piston. The piston is movably installed in the cover assembly. The side button is embedded in the outer wall of the cover assembly. The elastic member is installed between the upper button and the cover assembly. The first end of the dropper is airtightly installed in the cover assembly. The second end of the dropper is inserted into the container when the dropper cover is combined with the bottle opening of the container. The elastic member is in a compressed state when the dropper cover is combined with the bottle opening of the container. In response to the inward displacement of the side button under force, the elastic member changes to a relaxed state, causing the movement of the piston to suck the material in the container into the dropper, and the dropper cover and the bottle opening of the container are separated.

[0007] Optionally, when the dropper cover is combined with the bottle opening of the container, the upper button and the side button are mutually hooked to make the upper button in a retracted state, and the side button and the bottle opening of the container are mutually clamped to make the dropper cover locked with the container.

[0008] When the side button is displaced inward by a first distance L1 under force, the upper button is separated from the side button, and the elastic member changes to a relaxed state to eject the upper button.

[0009] When the side button is displaced inward by a second distance L2 under force, the side button is separated from the bottle opening of the container to unlock the dropper cover from the container.

[0010] wherein the first distance L1 is less than or equal to the second distance L2.

[0011] Optionally, the side button comprises a pressing piece and a side arm fixedly connected to the pressing piece, the pressing piece extends along its axial direction to form a spring piece, the spring piece is provided with a hook, the bottle mouth of the container is provided with a convex edge, the upper button is provided with a second side hole, when the dropper cover and the bottle mouth cover of the container are closed, the hook is clamped into the second side hole, and the side arm is clamped on the convex edge of the container.

[0012] Optionally, the cover assembly comprises an outer cover and an inner cover fixedly installed in the outer cover, the first end of the dropper is airtightly and fixedly installed in the inner cover, and the piston is airtightly and movably installed in the inner cover.

[0013] Optionally, the upper button is installed in the outer cover and can move along the axial direction of the outer cover, the upper button comprises a pressing part and a clamping part fixedly connected to the pressing part, the clamping part protrudes from part of the pressing part along the radial direction to form a second convex platform, and the second side hole is arranged on the clamping part, and the inner surface of the top of the pressing part extends axially to the inside of the pressing part to form a connecting rod, and the connecting rod is inserted into the connecting barrel of the piston.

[0014] Optionally, the outer cover is a hollow cylindrical structure with openings at both the top and bottom, the top surface of the outer cover is provided with a top hole, and the side surface is provided with a first side hole, the side button is sleeved on the inner cover, the pressing piece is arranged in the first side hole, the pressing part is arranged in the top hole, the top opening of the outer cover extends radially inward to form a ring of first convex platforms, the first convex platforms are used to limit the stroke of the upper button, and the inner side wall of the lower end of the outer cover is provided with a clamping groove used to fix the inner cover.

[0015] Optionally, the inner cover comprises a sleeve, a first mounting part and a second mounting part fixedly connected in sequence, the upper surface of the first mounting part extends radially inward to form a third convex platform, and a limiting groove is arranged between the first mounting part and the second mounting part.

[0016] Optionally, the sleeve, the first mounting part and the second mounting part are all hollow cylindrical structures, the diameter of the sleeve is smaller than the diameter of the first mounting part, the diameter of the first mounting part is smaller than the diameter of the second mounting part, the second mounting part protrudes from the first mounting part to form a step, the outer surface of the second mounting part is formed with a convex rib along the circumferential direction, the elastic member is sleeved on the sleeve, the first end of the elastic member abuts against the upper button, the second end of the elastic member abuts against the third convex platform, and the outer surface of the sleeve is an anti-skid surface to increase the friction between the elastic member and the sleeve.

[0017] Optionally, the convex edge is a ring structure arranged on a radially outward extension of the bottle mouth of the container, an inner plug is arranged in the bottle mouth, and the inner cap is sleeved on the bottle mouth of the container and a gasket is arranged between the inner cap and the inner plug.

[0018] Optionally, the side button comprises two pressing pieces and two side arms, two ends of the two pressing pieces are fixedly connected with the two side arms respectively, the side arms are arranged obliquely, and upper edges of the side arms are inclined towards the inner side of the side button, one hook is arranged on each pressing piece, and one elastic piece is arranged on each hook.

[0019] The beneficial effects of the present application are:

[0020] 1) In the present application, the convex rib of the inner cap is clamped into the clamping groove of the outer cap to fix the inner cap and the outer cap together, the pressing piece of the side button is arranged in the first side hole of the outer cap, the hook of the side button hooks the second side hole of the upper button to make the elastic member in a compressed state, the side arm of the side button is stopped on the convex edge on the container to limit the dropper cover on the container, when in use, the user presses the pressing piece inward, the hook of the pressing piece is disengaged from the second side hole, that is, the upper button is disengaged from the constraint of the side button, the elastic member starts to relax without the restraint of the upper button to push the upper button and the piston upward to complete the material suction of the dropper, further pressing the pressing piece, the side arm is extruded to expand along the radial outer side to disengage from the convex edge, so that the entire dropper cover is disengaged from the container. Therefore, the present application completes the two actions of automatic material suction and disengagement from the container in sequence by pressing the pressing piece of the side button, which is very convenient to use.

[0021] 2) During the unlocking process, first, the hook is disengaged from the second side hole, at the same time, the upper button and the piston move upward under the action of the restoring force of the elastic member until the second convex platform of the upper button is stopped by the first convex platform of the outer cap to complete the material suction of the dropper, then the pressing piece of the side button is continuously pressed to disengage the side arm from the container, at this time, the dropper cover can be removed, that is, when the side arm is disengaged from the container, the upper button has completed the upward movement process, thereby ensuring that the dropper has completed the material suction when the dropper cover is removed, so as to meet the use requirements of customers.

[0022] 3) When in use, the dropper cover is taken out and the upper button is pressed downward to discharge the material, when the pressing stroke of the upper button reaches the maximum distance, the material in the dropper is completely extruded, and the hook on the side button hooks the second side hole of the upper button again to avoid the upper button from sucking a large amount of dust in the air when being repeatedly pressed to cause the pollution of the material. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an exploded view of the present application;

[0024] Figure 2 It is a side view of the present application from one perspective;

[0025] Figure 3 For Figure 2 Sectional view along A-A;

[0026] Figure 4 For another perspective side view of the application;

[0027] Figure 5 For Figure 4 Sectional view along B-B

[0028] Figure 6 For the structure diagram of the outer cover in the application;

[0029] Figure 7 For the structure diagram of the upper button in the application;

[0030] Figure 8 For the structure diagram of the side button in the application;

[0031] Figure 9 For the structure diagram of the inner cover in the application;

[0032] Figure 10 For the structure diagram of the piston in the application;

[0033] Figure 11 For the structure diagram of the connecting sleeve in the application;

[0034] Figure 12 For the structure diagram of the inner plug in the application;

[0035] Figure 13 For the unlocking state diagram of the dropper cover and the container in the application;

[0036] Figure 14 For the state diagram of the dropper cover and the container separated and the upper button in the unlocking state in the application;

[0037] Figure 15 For the state diagram of the dropper cover and the container separated and the upper button in the locking state in the application;

[0038] In the figure: 10-outer cover, 11-top hole, 12-first side hole, 13-clamping groove, 14-first boss, 20-upper button, 21-pressing part, 22-clamping part, 23-second side hole, 24-second boss, 25-connecting rod, 30-side button, 31-pressing piece, 32-side arm, 33-elastic piece, 34-hook, 40-inner cover, 41-third boss, 42-step, 43-limiting groove, 44-convex rib, 45-sleeve, 50-piston, 51-connecting cylinder, 60-connecting sleeve, 70-elastic member, 80-dropper, 81-dropper nozzle, 90-container, 91-bottle body, 92-shoulder sleeve, 93-convex edge, 94-inner plug, 95-gasket, 96-convex rib. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0040] It should be noted that the terms "first", "second", and the like in the description and claims of the present application and the following drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to the process, method, product, or device.

[0041] For ease of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0042] Embodiment: As Figures 1-15As shown in the figure, a drip tube cover is combined with the container 90, and the drip tube cover comprises a cover assembly, an upper button 20, a side button 30, a piston 50, an elastic member 70 and a drip tube 80. The upper button 20 is fixedly connected with the piston 50, the piston 50 is movably installed in the cover assembly, the side button 30 is embedded in the outer wall of the cover assembly, the elastic member 70 is installed between the upper button 20 and the cover assembly, the first end of the drip tube 80 is airtightly installed in the cover assembly, the second end of the drip tube 80 is inserted into the container 90 when the drip tube cover is combined with the bottle opening of the container 90, and the elastic member 70 is in a compressed state when the drip tube cover is combined with the bottle opening of the container 90. In response to the inward displacement of the side button 30 under force, the elastic member 70 changes to a relaxed state to cause the movement of the piston 50 to suck the material in the container 90 into the drip tube 80, and the drip tube cover and the bottle opening of the container 90 are separated.

[0043] When assembled, the side button 30 is installed on the cover assembly, the first end of the drip tube 80 is airtightly assembled with the cover assembly, the piston 50 is airtightly installed in the cover assembly, and the piston and the cover assembly are not fixed in the axial, radial and other directions. The piston can slide in multiple directions relative to the cover assembly in the cover assembly, or the cover assembly limits the axial or radial position of the piston, and the piston can only slide in a single direction relative to the cover assembly in the radial or axial direction. When the drip tube cover is locked on the bottle opening of the container 90, the upper button 20 is in a retracted state, the elastic member 70 is compressed by the upper button and is in a compressed state. The elastic member 70 can be a spring or a high polymer elastic body, and the piston 50 is close to the first end of the drip tube. When in use, the user squeezes the side button 30, the upper button 20 is separated from the side button 30, the elastic member starts to relax and pushes the upper button and the piston to move upward without the restraint of the upper button, and the material in the drip tube is sucked. Further squeeze the side button 30, the side button 30 is separated from the bottle opening of the container, that is, the drip tube cover is unlocked and separated from the container. Therefore, by pressing the side button, the two actions of automatic material sucking and separation from the container are completed in sequence, and the use is very convenient.

[0044] When the drip tube cover is combined with the bottle opening of the container 90, the upper button 20 and the side button 30 are hooked with each other to make the upper button 20 in a retracted state, as shown in the figure, the side button 30 and the bottle opening of the container 90 are clamped with each other to make the drip tube cover locked on the container 90; Figure 2

[0045] When the side button 30 is displaced inward by a first distance L1 under force, the upper button 20 is separated from the side button 30, the elastic member changes to a relaxed state to push out the upper button 20, as shown in the figure, the upper button 20 synchronously operates with the piston 50 to complete the material sucking of the drip tube; Figure 13

[0046] When the side button 30 is displaced inward by a second distance L2 under force, the side button 30 is separated from the bottle opening of the container 90 to make the drip tube cover unlocked from the container;

[0047] ​​Wherein, the first distance L1 is less than or equal to the second distance L2. That is, the dropper cover can be removed from the container 90, as shown in Figure 14 When the material in the dropper 80 is completely squeezed out, the upper button 20 is again hooked with the side button 30, as shown in Figure 15 Thus, the upper button 20 is prevented from absorbing a large amount of dust in the air when repeatedly pressed, thereby preventing the material from being contaminated.

[0048] As shown in Figure 5 , Figure 7 and Figure 8 , the side button 30 includes a pressing piece 31 and a side arm 32 fixedly connected to the pressing piece. The pressing piece 31 extends along the axial direction thereof to form a spring piece 33, and the spring piece 33 is provided with a hook 34. The bottle mouth of the container 90 is provided with a convex edge 93, and the upper button 20 is provided with a second side hole 23. When the dropper cover is combined with the bottle mouth of the container 90, the hook 34 is clamped into the second side hole 23, and the side arm 32 is clamped to the convex edge 93 of the container 90. The clamping of the hook 34 into the second side hole 23 causes the upper button 20 to be in a retracted state, and the pressing portion 21 presses the elastic member 70 so that the elastic member is in a compressed state. When the pressing piece 31 is forced to move inward, the second side hole 23 is separated from the hook 34, and the elastic member 70 is converted to a relaxed state. The elastic member 70 pushes the upper button 20 and the piston 50 to operate to suck the material from the container 90 through the dropper 80, and the side arm 32 is separated from the convex edge 93 to unlock the dropper cover from the container.

[0049] As shown in Figure 5 , the cover assembly includes an outer cover 10 and an inner cover 40 fixedly installed in the outer cover. The first end of the dropper 80 is airtightly and fixedly installed in the inner cover 40, and the piston 50 is airtightly and movably installed in the inner cover 40. The piston 50 and the first end of the dropper 80 are both arranged in the inner cover 40, the connecting sleeve 60 is sealingly arranged on the first end of the dropper, and the connecting sleeve 60 is airtightly installed with the inner cover 40. When the piston 50 moves upward, the material in the container can be sucked into the dropper 80, and when the piston moves downward, the material in the dropper 80 can be squeezed out.

[0050] The upper button 20 is installed in the outer cover 10 and can move along the axial direction of the outer cover, as shown in Figure 7 The upper button 20 includes a pressing portion 21 and a clamping portion 22 fixedly connected to the pressing portion. The clamping portion 22 protrudes along the radial direction from the portion of the pressing portion 21 to form a second boss 24, and the second side hole 23 is arranged on the clamping portion 22. The inner surface of the top of the pressing portion 21 extends axially to the inside of the pressing portion 21 to form a connecting rod 25, and the connecting rod 25 is inserted into the connecting cylinder 51 of the piston 50 to fixedly connect the piston with the upper button.

[0051] As shown in Figure 6As shown, the outer cover 10 is a cylindrical structure with openings at both ends and a hollow interior, and a top hole 11 is provided on the top surface of the outer cover 10 and a first side hole 12 is provided on the side. The side button 30 is sleeved on the inner cover 40 and the pressing piece 31 is placed in the first side hole 12, and the pressing portion 21 is placed in the top hole 11. The opening at the upper end of the outer cover extends radially inward to form a circle of first bosses 14. The first bosses 14 are used to limit the stroke of the upper button 20. The inner side wall of the lower end of the outer cover 10 is provided with a card groove 13 and the card groove 13 is used to fix the inner cover 40.

[0052] Among them, the locking portion and the pressing portion are both hollow cylindrical structures, and the diameter of the locking portion is larger than the diameter of the pressing portion 21. The part of the locking portion protruding from the pressing portion is the second boss 24. When the elastic member is in the natural state, the second boss 24 abuts against the first boss 14 of the outer cover. Therefore, the arrangement of the first boss and the second boss is used to limit the upward stroke of the upper button and effectively prevent the upper button from being ejected from the outer cover. When the user presses the upper button downward, the upper button 20 pushes the piston to complete the material operation; the outer cover 10 is sleeved on the upper button 20, the side button 30 and the inner cover 40 arranged from top to bottom, and the upper button 20 and the piston 50 can move up and down relative to the outer cover 10. The pressing piece 31 of the side button 30 is placed on the first The side button 30 is exposed to the outside in the side hole 12 and is convenient for the user to press. Similarly, the pressing portion 21 of the upper button is placed in the top hole 11 of the outer cover and is exposed to the outside. When the side arm 32 engages with the ridge 93 of the container to lock the dropper cap to the bottle mouth of the container, the upper button 20 is hooked by the side button 30 and is in a retracted state, and the elastic member 70 is constrained by the upper button and is in a compressed state. During use, the user presses the pressing piece 31 inward, and the side arm 32 is squeezed and expanded radially outward. The hook on the pressing piece first disengages from the upper button. The elastic member, freed from the restraint of the upper button, begins to relax and pushes the upper button and piston upward, completing the material suction of the dropper. The side arm further expands outward and disengages from the ridge 93, causing the entire dropper cap to be detached from the container. Therefore, the present application can simultaneously complete the two actions of automatic material suction and detachment from the container by pressing the pressing piece of the side button, which is very convenient to use.

[0053] like Figure 9 As shown, the inner cap 40 includes a sleeve 45, a first mounting portion, and a second mounting portion, which are fixedly connected in sequence. The upper surface of the first mounting portion extends radially inward to form a third boss 41. A retaining groove 43 is provided between the first and second mounting portions. The third boss 41 is positioned on the container's bottle mouth, and a gasket 95 and an inner plug 94 are provided between the third boss and the bottle mouth, sealing the dropper cap to the container. The container's ridge 93 is positioned in the retaining groove 43, which is used to limit the spatial position of the side button side arm during deformation. The outer circumferential wall of the piston 50 fits against the inner circumferential wall of the sleeve, so the piston can only slide along the sleeve's axial direction.

[0054] like Figure 9As shown, the sleeve 45, the first mounting portion and the second mounting portion are all hollow cylindrical structures, and the diameter of the sleeve 45 is smaller than the diameter of the first mounting portion, the diameter of the first mounting portion is smaller than the diameter of the second mounting portion, the second mounting portion protrudes from the first mounting portion to form a step 42, and the outer surface of the second mounting portion forms a rib 44 along the circumferential direction. The elastic member 70 is sleeved on the sleeve 45 and the first end of the elastic member 70 abuts against the upper button 20, and the second end of the elastic member 70 abuts against the third boss 41. The outer surface of the sleeve 45 is a non-slip surface for increasing the friction between the sleeve 45 and the elastic member 70. For example, a plurality of anti-slip ribs are provided on the outer surface of the sleeve 45 along its axial direction, or the outer surface of the sleeve is set to an uneven structure such as a grid, pattern, or frosted shape, so that a small amount of interference fit is produced between the outer surface of the sleeve and the elastic member 70, which is convenient for fixing the elastic member; a circle of card grooves 13 are provided on the lower inner wall of the outer cover along its circumferential direction, and when installed, the ribs 44 of the inner cover are engaged in the card grooves 13 of the outer cover so that the outer cover and the inner cover are locked to each other, and the step 42 is used to limit the inward pressing stroke of the pressing piece of the side button.

[0055] The convex edge 93 is an annular structure arranged at the radially outer portion of the bottle mouth of the container 90. An inner plug 94 is installed in the bottle mouth. The inner cover 40 is sleeved on the bottle mouth of the container 90 and a gasket 95 is provided between the inner cover 40 and the inner plug 94.

[0056] Optionally, when the connecting sleeve 60 is made of soft rubber material, the connecting sleeve 60 and the gasket 95 are an integrally formed part; when the connecting sleeve 60 is made of hard rubber material, the connecting sleeve 60 and the gasket 95 are two independent parts, and the gasket 95 is made of soft rubber material; the container 90 includes a bottle body 91 and a shoulder sleeve 92, and the bottle body and the shoulder sleeve can be integrally formed or formed into two parts respectively, and then glued together to form a container, the convex edge 93 is provided at the bottle mouth of the shoulder sleeve 92, and the inner plug 94 is provided with a convex ridge 96 protruding radially outwardly thereof, and the convex ridge is used to improve the airtight effect by interference fit with the bottle mouth, such as Figure 14 As shown, a drip nozzle 81 is provided at the second end of the drip tube 80 , and the drip nozzle is arranged at an angle with respect to the drip tube.

[0057] like Figure 8 As shown, the side button 30 includes two pressing pieces 31 and two side arms 32. The two ends of the two pressing pieces are fixedly connected to the two side arms respectively. The side arms 32 are arranged at an angle and the upper edges of the side arms are inclined toward the inner side of the side button. Each pressing piece 31 is provided with a spring piece 33, and each spring piece 33 is provided with a hook 34. The pressing pieces and the side arms are spaced in sequence and fixedly connected end to end to form a ring. During assembly, the pressing pieces are not subjected to force, the inner cover 40 is inserted into the ring of the side buttons, and the upper edges of the side arms 32 are bent into the ring surrounded by the side buttons, and the upper edges of the side arms are pressed against the convex edge 93 of the container (as shown in FIG. Figure 5When in use, the pressing piece 31 is pressed inwardly, and the hook 34 on the pressing piece is first disengaged from the second side hole 23 of the upper button. The pressing piece is further pressed to expand the side arm 32 along its radial outer side and disengage from the protruding edge 93, so that the entire dropper cap is separated from the container. The inclined side arm 32 facilitates locking and unlocking of the side button.

[0058] The process of using this application includes the following steps:

[0059] Step 1: After the dropper cap and container are installed, Figure 2 In this state, the pressing piece 31 of the side button 30 is placed in the first side hole 12 and is substantially flush with the side wall of the outer cover 10. The pressing portion 21 of the upper button is placed in the top hole 11 and is substantially flush with the top surface of the outer cover. The hook 34 on the side button hooks the second side hole 23 of the upper button, that is, the upper button is in the retracted state, the elastic member 70 is in the compressed state, and the piston 50 is close to the first end of the dropper 80.

[0060] Step 2: When using, the user presses the pressing pieces 31 on both sides at the same time, and the hooks of the pressing pieces 31 are disengaged from the second side holes 23, that is, the upper button 20 is disengaged from the constraints of the side buttons 30. The elastic member 70 begins to relax without the constraints of the upper button and pushes the upper button and the piston upward to complete the suction of the dropper. The pressing piece 31 is further pressed, and the side arms 32 are squeezed and expanded along their radial outer sides to separate from the ridges 93, so that the entire dropper cap is separated from the container. Figure 13 As shown, at this time, the pressing portion 21 of the upper button protrudes from the outer cover 10;

[0061] Step 3: Remove the dropper cap from the container 90. Figure 14 As shown, the dropper 80 is now full of material. When the user uses it, the material in the dropper is squeezed out by pressing the pressing portion 21 of the upper button, and the material flows out through the drip nozzle 81 of the dropper;

[0062] Step 4: When the upper button 20 is pressed to the maximum distance, the material in the dropper 80 is completely squeezed out, and the hook 34 on the side button hooks the second side hole 23 of the upper button again, and the upper button is in a retracted state, as shown in FIG. Figure 15 As shown, this prevents the upper button from being repeatedly pressed and causing a large amount of dust in the air to be sucked in, thereby preventing the material from being contaminated.

[0063] It should be noted that those skilled in the art may make a number of modifications and improvements without departing from the concept of this application, and these modifications and improvements are all within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be based on the appended claims.

Claims

1. A dropper cap, which is fitted onto a container (90), characterized in that: The dropper cover comprises a cover assembly, an upper button (20), a side button (30), a piston (50), an elastic member (70) and a dropper (80), wherein the upper button (20) is fixedly connected to the piston (50), the piston (50) is movably installed in the cover assembly, the side button (30) is embedded in the outer wall of the cover assembly, the elastic member (70) is installed between the upper button (20) and the cover assembly, the first end of the dropper (80) is airtightly installed in the cover assembly, and the dropper ( The second end of the piston (80) is inserted into the container (90) when the dropper cap is closed with the bottle mouth of the container (90), and the elastic member (70) is in a compressed state when the dropper cap and the bottle mouth of the container (90) are closed. In response to the side button (30) being forced to move inward, the elastic member (70) is converted to a relaxed state, causing the movement of the piston (50) to suck the material in the container (90) into the dropper (80), and the dropper cap and the bottle mouth of the container (90) are separated; When the dropper cap and the bottle opening of the container (90) are closed, the upper button (20) and the side button (30) are hooked with each other so that the upper button (20) is in a retracted state, and the side button (30) and the bottle opening of the container (90) are engaged with each other so that the dropper cap is locked to the container (90); When the side button (30) is displaced inward by a first distance L1 under force, the upper button (20) is separated from the side button (30), and the elastic member (70) turns to the relaxed state to push the upper button (20) out; When the side button (30) is forced to move inward by a second distance L2, the side button (30) is separated from the bottle mouth of the container (90), thereby unlocking the dropper cap from the container; Wherein, the first distance L1 is less than or equal to the second distance L2; when the material in the dropper (80) is completely squeezed out, the upper button (20) is hooked with the side button (30) again.

2. The dropper cap according to claim 1, characterized in that: The side button (30) includes a pressing piece (31) and a side arm (32) fixedly connected to the pressing piece. The pressing piece (31) extends along its axial direction to form a spring piece (33). The spring piece (33) is provided with a hook (34). The bottle mouth of the container (90) is provided with a convex edge (93). The upper button (20) is provided with a second side hole (23). When the dropper cover and the bottle mouth of the container (90) are covered, the hook (34) is inserted into the second side hole (23), and the side arm (32) is engaged with the convex edge (93) of the container (90).

3. The dropper cap according to claim 2, characterized in that: The cover assembly comprises an outer cover (10) and an inner cover (40) fixedly mounted in the outer cover, the first end of the dropper (80) is airtightly and fixedly mounted on the inner cover (40) through a connecting sleeve (60), and the piston (50) is airtightly and movably mounted on the inner cover (40).

4. The dropper cap according to claim 3, characterized in that: The upper button (20) is installed in the outer cover (10) and the upper button (20) can move along the axial direction of the outer cover (10). The upper button (20) includes a pressing portion (21) and a clamping portion (22) fixedly connected to the pressing portion. The clamping portion (22) protrudes from the pressing portion (21) in the radial direction to form a second boss (24), and the second side hole (23) is provided on the clamping portion (22). The inner surface of the top of the pressing portion (21) extends axially toward the inner side of the pressing portion (21) to form a connecting rod (25), and the connecting rod (25) is inserted into the connecting cylinder (51) of the piston (50).

5. The dropper cap according to claim 4, characterized in that: The outer cover (10) is a cylindrical structure with openings at both ends and a hollow interior, and a top hole (11) is provided on the top surface of the outer cover (10) and a first side hole (12) is provided on the side surface. The side button (30) is sleeved on the inner cover (40) and the pressing piece (31) is placed in the first side hole (12). The pressing portion (21) is placed in the top hole (11). The opening at the upper end of the outer cover extends radially inward to form a circle of first bosses (14). The first bosses (14) are used to limit the stroke of the upper button (20). The inner side wall of the lower end of the outer cover (10) is provided with a card slot (13) and the card slot (13) is used to fix the inner cover (40).

6. The dropper cap according to claim 3, characterized in that: The inner cover (40) comprises a sleeve (45), a first mounting portion, and a second mounting portion that are fixedly connected in sequence. The upper surface of the first mounting portion extends radially inward to form a third boss (41). A limiting groove (43) is provided between the first mounting portion and the second mounting portion.

7. The dropper cap according to claim 6, characterized in that: The sleeve (45), the first mounting portion and the second mounting portion are all hollow cylindrical structures, and the diameter of the sleeve (45) is smaller than the diameter of the first mounting portion, the diameter of the first mounting portion is smaller than the diameter of the second mounting portion, the second mounting portion protrudes from the first mounting portion to form a step (42), and the outer surface of the second mounting portion forms a rib (44) along the circumferential direction. The elastic member (70) is sleeved on the sleeve (45) and the first end of the elastic member (70) abuts against the upper button (20), and the second end of the elastic member (70) abuts against the third boss (41). The outer surface of the sleeve (45) is a non-slip surface for increasing the friction between the sleeve and the elastic member (70).

8. The dropper cap according to claim 3, characterized in that: The convex edge (93) is an annular structure arranged at the radially outer extension of the bottle mouth of the container (90), an inner plug (94) is installed in the bottle mouth, the inner cover (40) is sleeved on the bottle mouth of the container (90), and a gasket (95) is provided between the inner cover (40) and the inner plug (94).

9. The dropper cap according to claim 2, characterized in that: The side button (30) includes two pressing pieces (31) and two side arms (32), the two ends of the two pressing pieces are fixedly connected to the two side arms respectively, the side arms (32) are arranged obliquely and the upper edges of the side arms are inclined toward the inner side of the side button, each pressing piece (31) is provided with a spring piece (33), and each spring piece (33) is provided with a hook (34).

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