Pressing type dropper

Abstract

The utility model relates to a push type dropper which comprises a spiral ring, a rubber head and an outer cover, the top of the spiral ring is provided with a top wall which is transversely arranged, the center of the top wall extends downwards to form a vertically-through suction pipe, and the top wall is further provided with a surrounding wall which extends upwards from the periphery of an upper end opening of the suction pipe. The rubber head is buckled on the top of the enclosure wall, a pressing cavity is defined by the rubber head and the enclosure wall, and the outer cover is arranged on the periphery of the spiral ring and the rubber head and used for restraining the rubber head on the spiral ring. According to the utility model, the number and the assembly relation of each component are simplified, the rubber head is directly arranged on the coil in a close-fitting manner, and the connection reliability of the rubber head and the coil is enhanced by using the outer cover, so that the assembly is very convenient and the sealing performance is good; meanwhile, all the parts with the simplified structure can be made of the same material and can be directly recycled after being used, all the parts do not need to be disassembled, and convenience is provided for unified recycling.

Description

TECHNICAL FIELD

[0001] The utility model relates to cosmetic packing technical field, specifically point to a kind of pressing type dropper. BACKGROUND

[0002] At present, the dropper bottle for solution cosmetic packaging sold on the market usually includes a dropper dispenser and a bottle body.

[0003] For example, the Chinese utility model patent "dropper" (application number: CN202421438732.4) with the authorization announcement number CN222098440U discloses a structure, which includes a rubber tube, an outer cover, an inner cover and a tube body. The top of the rubber tube is a hemispherical structure, the middle position is a hollow cylindrical structure, the bottom gradually expands outward to form a horn structure, and the lower part of the horn structure is an inwardly recessed annular groove structure. The lower part of the annular groove is a hollow annular mounting structure. The inner part of the outer cover is hollow, and the whole is a circular shaft body structure. The top has an annular pad groove matched with the horn structure of the rubber tube. The inner wall of the outer cover has a plurality of vertically arranged vertical strip structures. The inner part of the inner cover is hollow, and the top and bottom are open structures. The whole is a circular shaft body mechanism, and the outer wall has a plurality of vertical groove structures matched with the vertical strips. The inner cover is arranged in the outer cover.

[0004] Although the above structure has been optimized for the poor sealing problem of the existing dropper structure, due to the limitation of the overall assembly structure, the rubber tube is usually made of rubber or silicone material, and the outer cover, inner cover and other parts are usually made of other plastic materials, which makes it necessary to disassemble the product before recycling, and it cannot be recycled uniformly, which is very inconvenient. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of the prior art, and provides a pressing type dropper with good sealing effect and convenient unified recycling.

[0006] The utility model solves the above technical problems by adopting the following technical scheme:

[0007] A pressing type dropper includes a coil, a rubber head and an outer cover. The top of the coil is provided with a transversely arranged top wall, the central part of the top wall extends downward to form a suction tube that penetrates up and down, the top wall is also provided with a surrounding wall that extends upward from the periphery of the suction tube upper port, the rubber head is buckled on the top of the surrounding wall and cooperates with the surrounding wall to form a pressing cavity, and the outer cover is arranged on the outer periphery of the coil and the rubber head and is used to constrain the rubber head on the coil.

[0008] Preferably, an annular wall is arranged on the top wall and located at the periphery of the surrounding wall, the annular wall is arranged close to the edge of the top wall, and a slot is formed between the annular wall and the surrounding wall, and the edge of the rubber head extends downward to form a plug-in sleeve capable of being connected with the slot. With such a structure, the rubber head can be directly and tightly connected with the top of the spiral.

[0009] Preferably, an assembly rib capable of being pressed on the top edge of the annular wall is arranged on the outer periphery of the plug-in sleeve. Such a structure is advantageous to improve the connection and sealing between the rubber head and the spiral, and provides a high sealing environment for the pressing cavity to prevent pressure relief during the process of sucking liquid and improve the reliability of sucking liquid.

[0010] Preferably, the main body of the outer cover is sleeved on the periphery of the spiral and the plug-in sleeve, an opening is formed on the top of the outer cover to allow the plug-in sleeve to pass through and expose the top of the rubber head above the outer cover, and the top wall of the outer cover on the outside of the opening is located above the assembly rib. Such a structure is advantageous to improve the connection reliability between the rubber head and the spiral.

[0011] Preferably, a sealing groove is arranged on the inner surface of the annular wall in a circumferential direction, and a sealing ring capable of being clamped with the sealing groove is arranged on the outer surface of the plug-in sleeve. Such a structure is advantageous to further improve the connection and sealing between the rubber head and the spiral.

[0012] Preferably, a slope is formed on the top of the inner surface of the annular wall and gradually inclines inward in a radial direction from top to bottom, and the slope constitutes a guide part for the sealing ring to slide into the slot from top to bottom. Such a structure can facilitate the assembly of the rubber head and the spiral.

[0013] Preferably, a gear ring is arranged on the outer surface of the spiral in a circumferential direction, and a convex rib capable of being frictionally connected with the gear ring is arranged on the inner surface of the outer cover; the convex rib is arranged on the lower part of the inner surface of the outer cover, and a limiting rib extending from top to bottom and abutting against the top wall of the spiral is arranged on the upper part of the inner surface of the outer cover. With such a structure, the assembly reliability between the outer cover and the spiral is improved, and the circumferential and vertical displacement between the outer cover and the spiral is prevented.

[0014] Preferably, the rubber head and the spiral are integrally formed. With such a structure, the sealing between the rubber head and the spiral is maximized, and the assembly is facilitated.

[0015] Preferably, the top of the rubber head is provided with a head arched upward from the upper edge of the plug-in sleeve, the height of the head is 0.8-4mm; the thickness of the central part of the head is greater than that of the peripheral part, and the thickness of the peripheral part is 0.3-0.7mm. The height of the head is mainly used for adjusting the liquid taking amount, and the height is too large to affect the hand feeling and the rebound fatigue resistance, so that the rubber head cannot rebound, and the height is too small to cause the liquid taking amount to be too small, and it is very troublesome to press the liquid taking multiple times, the height of the head is set to 0.8-4mm in the utility model, and the single liquid taking amount and the rebound fatigue resistance requirements can be well balanced; the thickening design of the central part of the head is beneficial to further improve the elasticity of the rubber head and meet the fatigue resistance requirements of the rubber head.

[0016] Preferably, the diameter of the head is D, and the diameter of the upper end of the suction pipe is d, and D=(2-4)d. By adopting such a structure, the width of the rubber head is designed to be large, and at the same time, the height of the rubber head can be small, and correspondingly, the pressing cavity volume is large, and the rubber head can be smoothly taken liquid by small deformation in the up-down direction.

[0017] Compared with the prior art, the utility model has the advantages that: the number of components and the assembly relationship are simplified, the rubber head is directly and tightly installed on the spiral, and the connection reliability of the two is strengthened by using the outer cover, so that the assembly is very convenient, and the sealing performance is good; at the same time, the parts after simplifying the structure can be made of the same material, and after use, they can be directly recycled without disassembling each part, which provides convenience for unified recycling. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the pressing type dropper of the utility model embodiment;

[0019] Figure 2 It is a sectional view of Figure 1

[0020] Figure 3 It is an exploded view of Figure 2

[0021] Figure 4 It is a bottle body with a pressing type dropper of the utility model embodiment;

[0022] Figure 5 It is a sectional view of Figure 4 DETAILED DESCRIPTION

[0023] The utility model will be further described in detail in combination with the embodiment of the drawings.

[0024] As Figures 1 to 3 ​​​As shown, the pressing type dropper of the embodiment comprises a coil 1, a rubber head 2 and an outer cover 3. The top of the coil 1 is provided with a transversely arranged top wall 11, the central part of the top wall 11 extends downward to form a vertically penetrating suction pipe 12, the top wall 11 is further provided with a surrounding wall 13 extending upward from the periphery of the upper end of the suction pipe 12, the rubber head 2 is buckled on the top of the surrounding wall 13 and cooperates with the surrounding wall 13 to enclose a pressing cavity 100, and the outer cover 3 is arranged on the periphery of the coil 1 and the rubber head 2 and is used to constrain the rubber head 2 on the coil 1.

[0025] The top wall 11 is further provided with a ring wall 14 located on the periphery of the surrounding wall 13, the ring wall 14 is arranged close to the edge of the top wall 11, and the ring wall 14 and the surrounding wall 13 form a slot 15 therebetween, and the edge of the rubber head 2 extends downward to form a plug-in sleeve 21 capable of being connected with the slot 15. With such a structure, the rubber head 2 can be directly and tightly connected on the top of the coil 1.

[0026] In the embodiment, the outer periphery of the plug-in sleeve 21 is provided with an assembly rib 211 capable of being pressed on the top edge of the ring wall 14. Such a structure is conducive to improving the connection sealing between the rubber head 2 and the coil 1, providing a high sealing environment for the pressing cavity 100, preventing pressure relief during liquid suction, and improving the reliability of liquid suction.

[0027] The main body of the outer cover 3 is sleeved on the periphery of the coil 1 and the plug-in sleeve 21, the top of the outer cover 3 is provided with an opening 31 through which the plug-in sleeve 21 passes to expose the top of the rubber head 2 above the outer cover 3, and the top wall 11 of the outer cover 3 outside the opening 31 is located above the assembly rib 211. Such a structure is conducive to improving the connection reliability between the rubber head 2 and the coil 1.

[0028] The inner surface of the ring wall 14 is provided with a circumferentially arranged sealing groove 141, and correspondingly, the outer surface of the plug-in sleeve 21 is provided with a sealing ring 212 capable of being connected with the sealing groove 141. Such a structure is conducive to further improving the connection sealing between the rubber head 2 and the coil 1.

[0029] The top of the inner surface of the ring wall 14 is formed with a downwardly and radially inwardly inclined inclined surface 142, which constitutes a guide portion for the sealing ring 211 to slide into the slot 15 from top to bottom. Such a structure can facilitate the assembly of the rubber head 2 and the coil 1.

[0030] The outer surface of the coil 1 is formed with a circumferentially arranged gear ring 16, and correspondingly, the inner surface of the outer cover 3 is formed with a convex rib 32 frictionally connected with the gear ring 16; the convex rib 32 is arranged on the lower part of the inner surface of the outer cover 3, and the upper part of the inner surface of the outer cover 3 is provided with a limiting rib 33 extending from top to bottom and abutting against the top wall 11 of the coil 1 at the lower end. With such a structure, the assembly reliability between the outer cover 3 and the coil 1 is improved, and the circumferential and vertical displacement between the outer cover 3 and the coil 1 is prevented.

[0031] The rubber head 2 of the embodiment is integrally formed with the spiral 1. With such a structure, the sealing between the rubber head 2 and the spiral 1 is maximized, and the assembly is facilitated.

[0032] In the embodiment, the top of the rubber head 2 is provided with a head 22 arched upward from the upper edge of the insertion sleeve 21, the height of the head 22 is 0.8-4 mm, preferably 0.8-3.5 mm; the thickness of the central part 221 of the head 22 is greater than that of the peripheral part 222, the thickness of the peripheral part is 0.3-0.7 mm, preferably 0.4-0.7 mm. The peripheral part 222 can be a conical sleeve structure, the lower surface of the central part 221 is horizontally arranged as a screen, and the upper surface of the central part 221 forms an upwardly arched circular surface.

[0033] The height of the head 22 is mainly used to adjust the liquid taking amount, too large height will affect the hand feeling and the resilience fatigue, thus the rubber head 2 cannot be resilient, too small height will result in too small liquid taking amount, and it is very troublesome to press the rubber head 2 for taking liquid many times. In the embodiment, the height of the head 22 is set to 0.8-4 mm, which can well balance the single liquid taking amount and the resilience fatigue requirement; the thickened design of the central part of the head 22 is beneficial to further improve the elasticity of the rubber head 2 and meet the fatigue requirement of the rubber head 2.

[0034] In the embodiment, the diameter of the head 22 is D, the diameter of the upper port of the suction tube 12 is d, and D=(2-4)d. With such a structure, the width of the rubber head 2 is designed to be large, and at the same time, the height of the rubber head 2 can be small, correspondingly, the volume of the pressing cavity 100 is large, and the rubber head 2 can be smoothly taken liquid with small deformation in the up-down direction.

[0035] In the embodiment, the number of components and the assembly relationship are simplified, the rubber head 2 is directly and tightly fitted on the spiral 1, and the connection reliability of the two is strengthened by the outer cover 3, so that the assembly is very convenient and the sealing performance is good; at the same time, the parts after the structure is simplified can be made of the same material, and after use, they can be directly recycled without disassembling, which provides convenience for unified recycling.

[0036] As shown in Figure 4 , 5 , it is the assembly drawing of the dropper and the bottle body of the embodiment. When using it, the head 22 of the rubber head 2 is pressed downward, the central part 221 and the peripheral part 222 of the head 22 of the rubber head 2 are displaced inside and outside, respectively, to generate a reaction force, the pulling of the reaction force makes the rubber head 2 return to the original position to generate suction, and the liquid in the bottle body is sucked into the dropper, and when pressed again, the liquid is output from the dropper.

[0037] In the description and claims of the present application, terms are used to generally identify the conceptual aspects of the embodiments. The use of these terms is intended to be illustrative and not restrictive. There can be many different examples that implement the concepts in accordance or in disagreement with the language of this description and the associated drawings, and such examples do not depart from the spirit and scope of the application.

Claims

1. A squeeze dropper characterized by: The screw ring is provided with a top wall arranged transversely at the top of the screw ring, a central part of the top wall extends downward to form a suction pipe, the top wall is further provided with a surrounding wall extending upward from the periphery of the upper end of the suction pipe, the rubber head is buckled on the top of the surrounding wall and forms a pressing cavity together with the surrounding wall, and the outer cover is arranged on the periphery of the screw ring and the rubber head and is used for restraining the rubber head on the screw ring.

2. The push-drop pipette of claim 1, wherein: The top wall is further provided with a ring wall arranged near the edge of the top wall, a slot is formed between the ring wall and the surrounding wall, and the edge of the rubber head extends downward to form a plug-in sleeve capable of being connected with the slot.

3. The push-drop tube of claim 2, wherein: The outer periphery of the plug-in sleeve is provided with an assembly rib capable of being pressed on the top edge of the ring wall.

4. The push-drop tube of claim 3, wherein: The main body of the outer cover is sleeved on the periphery of the screw ring and the plug-in sleeve, the top of the outer cover is provided with an opening for the plug-in sleeve to pass through so that the top of the rubber head is exposed above the outer cover, and the top wall of the outer cover outside the opening is located above the assembly rib.

5. The push-drop tube of claim 2, wherein: The inner surface of the ring wall is provided with a sealing groove arranged circumferentially, and the outer surface of the plug-in sleeve is provided with a sealing ring capable of being connected with the sealing groove.

6. The push-drop tube of claim 5, wherein: The top of the inner surface of the ring wall is formed with a slope gradually inclined inward along the radial direction from top to bottom, and the slope constitutes a guide part for the sealing ring to slide into the slot from top to bottom.

7. The push-drop tube according to any one of claims 1 to 6, characterized in that: The outer surface of the screw ring is formed with a gear ring arranged circumferentially, and the inner surface of the outer cover is formed with a convex rib capable of being frictionally connected with the gear ring; the convex rib is arranged at the lower part of the inner surface of the outer cover, and the upper part of the inner surface of the outer cover is provided with a limiting rib extending downward and abutting against the top wall of the screw ring.

8. The push-drop tube according to any one of claims 1 to 6, characterized in that: The rubber head is integrally formed with the screw ring.

9. The push-drop tube according to any one of claims 2 to 6, characterized in that: The top of the rubber head is provided with a head part arched upward from the upper edge of the plug-in sleeve, the height of the head part is 0.8-4 mm, the thickness of the central part of the head part is greater than the thickness of the peripheral part of the head part, and the thickness of the peripheral part of the head part is 0.3-0.7 mm.

10. The push-drop tube of claim 9, wherein: The diameter of the head part is D, the diameter of the upper end of the suction pipe is d, and D=(2-4)d.

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