A fluid dispenser and a method for manufacturing the same

Abstract

The present invention provides a fluid dispenser and a manufacturing method thereof, wherein the fluid dispenser comprises a conveying component, a coating component and a conveying opening, wherein the conveying component comprises a stepped support base, a conveying cavity penetrating the support base and a plurality of connection structures formed by extending outward from the outer surface of the support base, wherein the coating component is integrally injection-molded and covers the outer surface of the support base, wherein the extending end of the connection structure is constructed in a hook shape, and the bending direction of the extending end is opposite to the connection stress direction between the coating component and the support base; the coating component is made of a material with good biocompatibility, high elasticity and good softness, and the coating component and the conveying component have strong connection stability, and no additional fixing structure is required; the coating component and the conveying component have good compatibility based on the manufacturing raw materials and can be recycled together, thereby realizing full plasticization of the fluid dispenser to meet the requirements of recycling and regenerating the fluid dispenser.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging containers, and in particular to a fluid dispenser and a manufacturing method thereof. Background Art

[0002] The fluid dispenser can be used to convey fluids of daily chemical products and medicines. It has a fluid reservoir and a conveying opening, wherein the fluid reservoir is used to store the fluid before conveying, and the fluid can be discharged to the environment along the conveying direction through the conveying opening.

[0003] In order to allow users to apply fluid directly to the part to be used without manual application, many products have been provided with an application component at the delivery opening end of the fluid reservoir over the years to apply the fluid discharged into the environment through the application component. For skin care products such as eye cream and essence, the existing application components are mostly made of hard materials such as metal or ceramics, for example, a metal ball is provided inside the delivery opening, or an iron-shaped metal or ceramic application rod is set between the fluid reservoir and the delivery opening end.

[0004] Metal materials and ceramic materials have high raw material and manufacturing costs. In addition, metal materials and ceramic materials are hard, and have poor skin-friendliness and softness. When users apply improper force, they are prone to irritation or damage to the skin. Especially for users with sensitive skin or those who need gentle care, they prefer soft and comfortable application parts.

[0005] In addition, from an environmental perspective, for fluid storage devices made of plastic as raw materials, when the application parts are made of metal or ceramic materials, the entire fluid dispenser needs to be disassembled and then sorted for recycling.

[0006] In view of this, it is necessary to improve the fluid dispenser with a smear component and the manufacturing method thereof in the prior art to solve the above problems.

[0007] It should be noted that the above introduction to the background technology is only for the convenience of providing a clear and complete description of the technical solutions of the present application and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0008] The object of the present invention is to provide a fluid dispenser and a manufacturing method thereof, so as to solve the problems of the application component of the existing fluid dispenser having high raw material cost and manufacturing cost, poor skin-friendliness, and being difficult to recycle.

[0009] To achieve the above object, the present invention provides a fluid dispenser, the fluid dispenser having a conveying component, a coating component and a conveying opening, the fluid can flow through the conveying opening along a conveying direction to the outer surface of the coating component, and be coated by the coating component;

[0010] The conveying component includes a support base, a conveying cavity penetrating the support base, and a plurality of connection structures formed by extending outward from the outer surface of the support base, the support base is configured in a step shape, the smearing component is integrally injection-molded and covered on the outer surface of the support base, the extending end of the connection structure is configured in a hook shape, the bending direction of the extending end is opposite to the connection stress direction of the smearing component and the support base, and the conveying opening communicates the conveying cavity and the outer surface of the smearing component;

[0011] The transport member is made of a first thermoplastic resin, and the application member is made of a thermoplastic elastomer and a second thermoplastic resin. The second thermoplastic resin has the same polarity as the first thermoplastic resin.

[0012] As a further improvement of the present invention, the raw materials for manufacturing the conveying component include a first thermoplastic resin and a barrier material, wherein the weight proportion of the first thermoplastic resin in the conveying component is not less than 30%; and the weight proportion of the thermoplastic elastomer in the smearing component is not less than 70%.

[0013] As a further improvement of the present invention, the first thermoplastic resin is polyethylene, the barrier material is ethylene-vinyl alcohol copolymer, and the second thermoplastic resin is low-density polyethylene.

[0014] As a further improvement of the present invention, the smearing component includes an elastic body and a functional coating coated on the outer surface of the elastic body, and the functional coating includes at least one of an antibacterial layer, an anti-aging layer and a wear-resistant layer.

[0015] As a further improvement of the present invention, the application component includes an elastic body, which is formed by at least two elastic body units covering or enclosing each other layer by layer, and each of the elastic body units adjusts the ratio of manufacturing raw materials according to different installation locations.

[0016] As a further improvement of the present invention, the outer surface of the application component is constructed as an application surface connected with the delivery opening, and the application surface includes a first application unit surface constructed as a convex curved surface, a second application unit surface constructed as a concave curved surface, and a third application unit surface formed on the periphery of the second application unit surface.

[0017] As a further improvement of the present invention, a discharge hole is arranged at the output end of the conveying cavity, the conveying opening is communicated with the discharge hole, the fluid distributor also includes a cover body, the cover body has a blocking portion cooperating with the discharge hole; when the cover body is connected to the conveying component, the blocking portion passes through the conveying opening and blocks the discharge hole, and on the same cross-section, the radial distance between the two opposite ends of the conveying opening is slightly larger than the radial distance between the two opposite ends of the blocking portion.

[0018] As a further improvement of the present invention, a one-way valve is arranged in the delivery chamber, and the one-way valve is configured to allow positive delivery of the fluid along the delivery direction. The one-way valve includes a valve seat with a through hole, and a valve cover arranged in the valve seat for opening or closing the through hole.

[0019] As a further improvement of the present invention, the fluid dispenser is configured as a squeeze-type dispenser and has a squeeze tube as the fluid dispenser, which can be manually compressed for delivery purposes, or the fluid dispenser is configured as a pump dispenser and has a manually actuatable pump device having a pump chamber and an inlet valve and an outlet valve.

[0020] To achieve the above object, the present invention also provides a method for manufacturing the above fluid dispenser, comprising: integrally forming the delivery component by injection molding, and then integrally covering the application component on the outer surface of the delivery component by injection molding.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] First, thermoplastic elastomer has good biocompatibility, high elasticity and good softness, and is suitable for manufacturing products that need to contact the skin. The application component uses thermoplastic elastomer as the main raw material and adds materials that have common properties with the first thermoplastic material, so that the application component and the conveying component can be made into an integrated structure by injection molding, so that the connection stability between the application component and the conveying component is strong without the need for additional fixing structures. On the other hand, the hardness of the application component can be adjusted;

[0023] Secondly, by setting the support base in a step shape, the contact area between the support base and the application member can be increased, thereby enhancing the connection stability between the inner surface of the application member and the outer surface of the support base; and the direction of the step is opposite to the reaction force (for example, the reaction force generated by the skin and subcutaneous tissue) to which the user is subjected when applying the fluid, thereby providing a more stable support for the application member;

[0024] Thirdly, the outer surface of the support base extends outward to form a connection structure embedded in the application member, and the extension end of the connection structure is constructed into a hook shape, and the bending direction of the extension end is opposite to the connection stress direction of the application member and the support base, so as to further enhance the connection stability between the application member and the support base; on the other hand, the hooking direction of the connection structure is opposite to the rebound direction of the application member after the user applies the fluid, so as to provide a hooking force when the application member rebounds, and further enhance the connection stability between the application member and the support base when rebounding;

[0025] Finally, the coating component and the conveying component can be recycled together due to the good compatibility of the manufacturing materials, thereby achieving full plasticization of the fluid dispenser to meet the requirements for recycling and regenerating the fluid dispenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic longitudinal section diagram of a fluid distributor provided by the present invention;

[0027] Figure 2 Based on Figure 1 An enlarged schematic diagram of a delivery component in a fluid distributor is shown;

[0028] Figure 3 A schematic longitudinal section diagram of an embodiment of the combination of the conveying component, the smearing component and the cover body provided by the present invention;

[0029] Figure 4 A schematic longitudinal section diagram of an embodiment of the combination of the conveying component and the applying component provided by the present invention;

[0030] Figure 5 A schematic longitudinal section diagram of another embodiment of the combination of the conveying component and the applying component provided by the present invention;

[0031] Figure 6 A schematic top view of an embodiment of the application component provided by the present invention;

[0032] Figure 7 The present invention is a schematic longitudinal section diagram of another embodiment of the combination of the conveying component and the applying component provided by the present invention. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0034] It should be understood that, in the present application, the terms "vertical", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present technical solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technical solution.

[0035] Figure 1 Taking the fluid dispenser 10 placed vertically and forwardly as an illustration, the fluid dispenser 10 extending linearly in the direction of the main extension axis X is shown, and the conveying direction X1 of the fluid in the fluid dispenser 10 is shown. The fluid dispenser 10 has a fluid reservoir 20, a conveying component 30, an application component 40, and a conveying opening 401 provided in the application component 40. The fluid stored in the fluid reservoir 20 can be discharged to the environment along the conveying direction X1 through the conveying opening 401, and applied through the application component 40. The fluid dispenser 10 also has a cover body 50 detachably connected to the conveying component 30, so as to protect the application component 40 through the covering of the cover body 50, and at the same time close the conveying opening 401 to prevent the outflow of the fluid.

[0036] The fluid dispenser 10 may be configured as an extrusion type dispenser and have an extrusion tube as the fluid dispenser 10, which can be manually compressed for delivery purposes. For example, in one embodiment, the fluid reservoir 20 is an extrusion tube body, which may be a plastic hose extruded from a molten plastic resin, or a laminated tube formed by laminating materials with different properties, or a multi-layer composite tube formed by an extruded tube covering a laminated tube, or an aluminum hose.

[0037] In other alternative embodiments, the fluid dispenser 10 may also be configured as a pump dispenser (not shown) and have a manually actuable pump device, the pump device having a pump chamber and an inlet valve and an outlet valve. For example, in one embodiment, the delivery component 30 is provided with an accommodating space for accommodating the pump device, and the fluid stored in the fluid reservoir 20 is pumped to the delivery opening 401 by the pump device and discharged to the environment through the delivery opening 401.

[0038] Combination Figure 1 and Figure 2As shown, the conveying component 30 includes a tube shoulder 31, a first connecting portion 32 and a support base 33 which are sequentially connected along the conveying direction X1. The tube shoulder 31, the first connecting portion 32 and the support base 33 enclose a conveying cavity 34, and a discharge hole 333 is provided at the output end of the support base 33. The conveying component 30 is injection molded by an injection molding process. The conveying component 30 uses a first thermoplastic resin as the main raw material, preferably polyethylene (PE). In order to improve the barrier property, barrier materials such as ethylene-vinyl alcohol copolymer (EVOH) can be added to the polyethylene to achieve a barrier effect. For example, the addition ratio of ethylene-vinyl alcohol copolymer is 30~70%. According to application requirements, additives with other properties can also be added to the main raw materials to achieve corresponding functions.

[0039] Thermoplastic elastomer (TPE) has good biocompatibility, high elasticity and good softness, and is suitable for making products that need to contact the skin. The application component 40 uses thermoplastic elastomer as the main raw material and is integrally covered on the outer surface of the support base 33 by injection molding. Due to the difference in molecular structure and polarity between thermoplastic elastomer and polyethylene, the molecular chain of thermoplastic elastomer often contains flexible segments and polar groups, while polyethylene is a non-polar polymer. The compatibility between the two is poor, resulting in limited connection stability. Therefore, in this embodiment, a second thermoplastic resin with the same polarity as the first thermoplastic resin is also added to the application component 40 to enhance the connection compatibility between the application component 40 and the conveying component 30, so that the application component 40 and the conveying component 30 can be made into an integrated structure by injection molding, so that the application component 40 and the conveying component 30 have a strong connection stability without the need for additional fixed structures. For example, low-density polyethylene (LDPE) is used as the second thermoplastic resin, that is, the smearing member 40 uses a thermoplastic elastomer as a raw material and adds low-density polyethylene. In addition to enhancing the connection stability between the smearing member 40 and the conveying member 30, the softness and hardness of the smearing member 40 can also be adjusted by adding low-density polyethylene. The weight proportion of the thermoplastic elastomer in the smearing member 40 is preferably not less than 70%. When the proportion of low-density polyethylene is higher, the smearing member 40 formed by injection molding is harder.

[0040] In other alternative embodiments, the second thermoplastic resin may also be linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE), ethylene-vinyl acetate copolymer (EVA), metallocene polyethylene (MPE), etc. In addition to the thermoplastic elastomer and the second thermoplastic resin, some appropriate additives may be added to the coating member 40 to improve its performance, such as a toughening agent, an antioxidant, a light stabilizer, a filler, etc.

[0041] When the fluid reservoir 20 is an extruded tube body, the tube shoulder 31 is preferably integrally formed at the output end of the fluid reservoir 20 by injection molding. The first connection portion 32 is used to connect and limit the cover body 50. The cover body 50 is also preferably injection molded by injection molding, for example, made of polypropylene (PP) by injection molding. The cover body 50 has a second connection portion 51, and the second connection portion 51 and the first connection portion 32 can be detachably connected by, for example, threaded connection, snap connection, etc.

[0042] In this embodiment, the support base 33 is constructed by connecting a plurality of connection units 331 in a step-like shape, and a connection structure 332 is formed by the outer surface of the connection unit 331 extending outward. Compared with the existing circular tubular or conical tubular support base, the present invention increases the contact area between the support base 33 and the application member 40 by configuring the shape of the support base 33 in a step-like shape, thereby enhancing the connection stability between the inner surface of the application member 40 and the outer surface of the support base 33; and when the user applies the fluid and the application member 40 is subjected to the reaction force exerted by the environment (for example, the reaction force generated by the skin and subcutaneous tissue), the step-shaped support base 33 can provide a more stable support for the application member 40.

[0043] Combination Figure 2 and Figure 3 As shown, further, a plurality of connection structures 332 formed by extending the outer surface of the connection unit 331 outward are provided, and the extension end 3321 of the connection structure 332 is constructed into a hook shape, and the bending direction of the extension end 3321 is opposite to the connection stress direction of the smearing member 40 and the support base 33, so as to further enhance the connection stability between the smearing member 40 and the support base 33. For example, in this embodiment, the connection stress direction of the smearing member 40 and the support base 33 is perpendicular to the outer surface of the connection unit 331 and outward, and the bending direction of the extension end 3321 is inward toward the outer surface of the connection unit 331. On the other hand, the hooking direction of the connection structure 332 is opposite to the rebound direction of the smearing member 40 after the user has applied the fluid, so as to provide a certain degree of hooking force when the smearing member 40 rebounds, thereby enhancing the connection stability between the smearing member 40 and the support base 33 when rebounding.

[0044] The purpose of continuously connecting multiple connection units 331 in a step-like manner is to increase the contact area between the support base 33 and the coating component 40, and to provide a connection surface morphology with stronger supporting performance. The structural morphology of the connection unit 331 in the support base 33 protected by the present invention is not limited to a conventional planar annular structure comprising a radially extending annular plane and an axially extending annular plane. For example, the connection unit 331 can also be a curved annular structure, or a broken line annular structure, etc.

[0045] A one-way valve 35 is provided in the delivery cavity 34. The one-way valve 35 is configured to allow the fluid to be delivered in the forward direction X1, prevent the fluid from flowing back, and play a role of fresh-keeping seal. In this embodiment, the one-way valve 35 is fixed to the inner side of the bottom step (not shown) of the support base 33, and the one-way valve 35 is clamped and connected with the inner wall of the bottom step. The one-way valve 35 includes a valve seat 351 having a through hole 3511, and a valve cover 3521 provided in the valve seat 351 for opening or closing the through hole 3511. For example, a limiting cavity (not shown) for positioning the valve body 352 is provided in the valve seat 351, and the valve body 352 is installed and limited in the limiting cavity. The valve cover 3521 is integrally connected to the central area of ​​the valve body 352 through a plurality of elastic connecting ribs (not shown), and a gap is formed between adjacent connecting ribs. The valve cover 3521 is adapted to the through hole 3511. In the natural state, the valve cover 3521 closes the through hole 3511 under the action of external pressure and the connecting ribs. When the fluid in the fluid storage device 20 is pressurized and flows forward along the conveying direction X1, the pressure below the valve cover 3521 is greater than the pressure above the valve cover 3521, and the valve cover 3521 moves away from the through hole 3511. The through hole 3511 is opened, and the fluid flows out through the gap between the connecting ribs after passing through the through hole 3511 and flows in the direction of the discharge hole 333. When the pressure on the fluid storage device 20 stops, the valve cover 3521 naturally falls back and recloses the through hole 3511 under the action of external pressure and the connecting ribs. The valve body 352 is preferably made of thermoplastic elasticity so that the connecting ribs are greatly deformed by the pressure of the fluid squeezing upward, so as to increase the gap between adjacent connecting ribs and allow the fluid to be conveyed faster.

[0046] In other alternative embodiments, the one-way valve 35 may also adopt other valve structures that can achieve one-way flow.

[0047] Combination Figures 1 to 3 As shown, the smearing member 40 is integrally covered on the outer surface of the support base 33 by an injection molding process, wherein the inner surface of the smearing member 40 is integrally connected with the outer surface of the support base 33, and the connection structure 332 extends from the inner surface of the smearing member 40 and is embedded in the interior of the smearing member 40. The delivery opening 401 is constructed on the smearing member 40 and penetrates the smearing member 40. Specifically, the delivery opening 401 extends outwardly from the output end of the support base 33 along the delivery direction X1 for a distance to the outer surface of the smearing member 40, so that the delivery opening 401 connects the delivery cavity 34 and the outer surface of the smearing member 40, and the fluid can flow to the outer surface of the smearing member 40 along the delivery direction X1 through the delivery opening 401. The outer surface of the smearing member 40 forms a smearing surface 402 connected with the delivery opening 401. In this embodiment, the top end of the smearing surface 402 is connected with the delivery opening 401, and the bottom end of the smearing surface 402 is connected with the outer periphery of the bottom surface of the support base 33.

[0048] Ginseng Figure 3 As shown, the cover body 50 is connected to the first connecting portion 32 of the conveying member 30 to form a receiving space (not shown), and the support base 33 and the smearing member 40 are both received in the receiving space. The cover body 50 has a blocking portion 52 for closing the conveying opening 401. The blocking portion 52 extends from the central area of ​​the inner wall surface of the cover body 50 in a direction opposite to the conveying direction X1, and the blocking portion 52 is adapted to the discharge hole 333 of the support base 33. The cover body 50 is connected to the support base 33, and the blocking portion 52 penetrates the conveying opening 401 to block the discharge hole 333 to prevent the fluid from flowing out of the discharge hole 333.

[0049] It should be noted that, in this embodiment, after the cover 50 is connected to the support base 33, there is a gap between the delivery opening 401 and the blocking portion 52, so as to avoid the problem that the blocking portion 52 and the inner wall of the delivery opening 401 formed by the application member 40 are difficult to separate due to the pressure change caused by the fluid dispenser 10 not being used for a long time. That is, the diameter of the delivery opening 401 and the diameter of the blocking portion 52 are configured as follows: when the cover 50 is connected to the support base 33, on the same cross section, the radial distance between the two opposite ends of the delivery opening 401 is slightly larger than the radial distance between the two opposite ends of the blocking portion 52. Preferably, the delivery opening 401 is constructed as an inverted cone, and the blocking portion 52 is also constructed as an inverted cone, and the taper of the delivery opening 401 is set to be slightly larger than the taper of the blocking portion 52.

[0050] Ginseng Figure 3 As shown, in one embodiment, the application component 40 has a hemispherical elastic body 41 as the main structure, and the application surface 402 is a hemispherical curved surface, and its smooth surface can slide easily on the skin to achieve uniform application of the fluid.

[0051] Ginseng Figure 4As shown, the smearing member 40 has an elastic body 41 as the main structure. In order to improve the performance of the smearing surface 402, the smearing member 40 also includes a functional coating 42 coated on the outer surface of the elastic body 41, and the smearing surface 402 is the outer surface of the functional coating 42. Since skin care products such as eye cream and facial essence have high nutrients, in order to avoid the growth of bacteria on the smearing surface 402, for example, the functional coating 42 is made into an antibacterial layer using nano silver antibacterial material, which has good antibacterial properties and has a strong inhibitory and killing effect on dozens of pathogenic microorganisms such as Escherichia coli, gonococci, and Chlamydia trachomatis; or, the functional coating 42 is made into an antibacterial layer using organic silicon quaternary ammonium salt, which has antibacterial, mildew-proof and anti-corrosion properties and has the properties of being non-toxic, mild, soft and smooth to the human body. In order to prevent the aging of the smearing member 40, the functional coating 42 can be made into an anti-aging coating using compounds such as hindered phenols, amines, anti-ultraviolet coatings or silicone coatings. The silicone coating can also reduce the friction coefficient of the surface of the thermoplastic elastomer, reduce the wear of the coating member 40 during use, further increase the service life of the coating member 40, and also play an anti-wall effect, that is, less fluid residue is left on the coating surface 402 after coating. A layer of functional coating 42 can be provided on the outer surface of the elastic body 41, or different functional coatings 42 can be covered layer by layer.

[0052] Since the application component 40 is made of thermoplastic elastomer and a second thermoplastic resin is added, in addition to enhancing the connection stability between the application component 40 and the conveying component 30, the hardness of the application component 40 can also be adjusted by adding the second thermoplastic resin. From the perspective of enhancing the connection stability of the connection surface between the application component 40 and the conveying component 30, the higher the proportion of the second thermoplastic resin added, the more stable the connection, but the harder the application component 40 will be; and from the perspective of the user's demand for the application component 40 to be more skin-friendly, the application component 40 close to the application surface 402 is required to have higher elasticity. Therefore, Figure 5 As shown, in one embodiment, the elastic body 41 is composed of a first elastic body unit 411 and a second elastic body unit 412, the first elastic body unit 411 is integrally covered on the outer surface of the support base 33 by an injection molding process, and the second elastic body unit 412 is integrally covered on the outer surface of the first elastic body unit 411 by an injection molding process, and the manufacturing materials of the first elastic body unit 411 and the second elastic body unit 412 both include thermoplastic elastomer and a second thermoplastic resin, wherein the weight proportion of the thermoplastic elastomer in the second elastic body unit 412 is greater than the weight proportion of the thermoplastic elastomer in the first elastic body unit 411.

[0053] Ginseng Figure 6As shown, in one embodiment, the elastic body 41 is composed of a third elastic body unit 413 and a fourth elastic body unit 414, and the third elastic body unit 413 and the fourth elastic body unit 414 are respectively and integrally covered on the outer surface of the support base 33 by an injection molding process, and the third elastic body unit 413 and the fourth elastic body unit 414 are enclosed to form the elastic body 41, and the third elastic body unit 413 and the fourth elastic body unit 414 are preferably symmetrically arranged on the support base 33. Among them, the weight proportion of the thermoplastic elastomer in the third elastic body unit 413 is greater than the weight proportion of the thermoplastic elastomer in the fourth elastic body unit 414. Since the third elastic body unit 413 and the fourth elastic body unit 414 are both made of thermoplastic elastomer, the hardness of the third elastic body unit 413 and the fourth elastic body unit 414 can be adjusted by adding the second thermoplastic resin. The weight of the thermoplastic elastomer in the fourth elastic body unit 414 is greater than the weight ratio of the thermoplastic elastomer in the third elastic body unit 413, so that the third elastic body unit 413 can be relatively soft and the fourth elastic body unit 414 can be relatively hard. During injection molding, different pigments can be added to visually distinguish the third elastic body unit 413 and the fourth elastic body unit 414, so that two coating surfaces 402 with different hardness and softness can be integrated on the same coating component 40, so as to broaden the elasticity range of the coating component 40 and meet the needs of different users for coating comfort or the usage needs in different scenarios.

[0054] When the fluid dispenser 10 is used to package eye skin care products, since the eye area mainly includes the lower eyelid and the upper eyelid, the lower eyelid is a concave structure and the subcutaneous tissue is harder. When applying to the upper eyelid, the eyes need to be closed so that the lower eyelid is supported by the eyeball and becomes a spherical shape. In order to make the application component 40 more suitable for applying eye skin care products, the application component 40 is preferably used to apply eye skin care products. Figure 7 As shown, in one embodiment, the application surface 402 includes a first application unit surface 402a configured as a convex curved surface, a second application unit surface 402b configured as a concave curved surface, and a third application unit surface 402c formed in the circumference of the second application unit surface 402b, and the second application unit surface 402b and the first application unit surface 402a are preferably arranged opposite to each other on the support base 33. The first application unit surface 402a is configured as a convex curved surface to be suitable for application to the lower eyelid; the second application unit surface 402b is configured as a concave curved surface to be suitable for application to the upper eyelid, wherein the curvature radius of the second application unit surface 402b is preferably 6.8mm-7.8mm. The third application unit surface 402c formed in the circumference of the second application unit surface 402b is a convex curved surface, and the curvature of the third application unit surface 402c is small, that is, the bending amplitude is large, so that the acupuncture points around the eyes can be massaged through the third application unit surface 402c.

[0055] The fluid dispenser 10 provided by the present invention can be applied to skin care products such as care essences and creams, cosmetics such as foundations, daily necessities such as cleaning agents, and fluid or cream-like medicines. The components in the fluid dispenser 10 can all be made of plastic materials, and the fluid dispenser 10 can be recycled as a whole without being disassembled by classification.

[0056] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fluid dispenser, characterized in that: The fluid dispenser comprises a conveying component, an application component and a conveying opening, and the fluid can flow through the conveying opening along a conveying direction to the outer surface of the application component and be applied by the application component; The conveying component includes a support base, a conveying cavity penetrating the support base, and a plurality of connection structures formed by extending outward from the outer surface of the support base, the support base is configured in a step shape, the smearing component is integrally injection-molded and covered on the outer surface of the support base, the extending end of the connection structure is configured in a hook shape, the bending direction of the extending end is opposite to the connection stress direction of the smearing component and the support base, and the conveying opening communicates the conveying cavity and the outer surface of the smearing component; The transport member is made of a first thermoplastic resin, and the application member is made of a thermoplastic elastomer and a second thermoplastic resin. The second thermoplastic resin has the same polarity as the first thermoplastic resin.

2. The fluid dispenser according to claim 1, characterized in that: The raw materials for manufacturing the conveying component include a first thermoplastic resin and a barrier material, wherein the weight proportion of the first thermoplastic resin in the conveying component is not less than 30%; and the weight proportion of the thermoplastic elastomer in the smearing component is not less than 70%.

3. The fluid dispenser according to claim 2, characterized in that: The first thermoplastic resin is polyethylene, the barrier material is ethylene-vinyl alcohol copolymer, and the second thermoplastic resin is low-density polyethylene.

4. The fluid dispenser according to claim 1, characterized in that: The smearing component comprises an elastic body and a functional coating coated on the outer surface of the elastic body, wherein the functional coating comprises at least one of an antibacterial layer, an anti-aging layer and a wear-resistant layer.

5. The fluid dispenser according to claim 1, characterized in that: The smearing component comprises an elastic body, and the elastic body is formed by covering or enclosing at least two elastic body units layer by layer, and each of the elastic body units adjusts the ratio of manufacturing raw materials accordingly according to different setting positions.

6. The fluid dispenser according to claim 1, characterized in that: The outer surface of the application component is constructed as an application surface connected with the delivery opening, and the application surface includes a first application unit surface constructed as a convex curved surface, a second application unit surface constructed as a concave curved surface, and a third application unit surface formed on the periphery of the second application unit surface, and the third application unit surface is a convex curved surface.

7. The fluid dispenser according to claim 1, characterized in that: A discharge hole is arranged at the output end of the delivery cavity, the delivery opening is communicated with the discharge hole, and the fluid distributor further comprises a cover body, wherein the cover body has a blocking portion matched with the discharge hole; When the cover body is connected to the conveying component, the blocking portion penetrates the conveying opening and blocks the discharge hole. On the same cross section, the radial distance between the two opposite ends of the conveying opening is slightly larger than the radial distance between the two opposite ends of the blocking portion.

8. The fluid dispenser according to claim 1, characterized in that: A one-way valve is disposed in the delivery chamber, and the one-way valve is configured to allow the fluid to be delivered in the forward direction along the delivery direction; The one-way valve comprises a valve seat with a through hole, and a valve cover arranged in the valve seat for opening or closing the through hole.

9. The fluid dispenser according to claim 1, characterized in that: The fluid dispenser is configured as a squeeze dispenser and has a squeeze tube as the fluid dispenser, the squeeze tube being capable of being manually compressed for delivery purposes, or The fluid dispenser is configured as a pump dispenser and has a manually actuatable pump device having a pump chamber and an inlet valve and an outlet valve.

10. A method for manufacturing the fluid dispenser according to any one of claims 1 to 9, characterized in that: include: The conveying component is integrally formed by an injection molding process, and then the coating component is integrally covered on the outer surface of the conveying component by an injection molding process.

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