WO2023213143A1 - 塑胶活塞、塞杆组合及旋动出料容器 - Google Patents

塑胶活塞、塞杆组合及旋动出料容器 Download PDF

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Publication number
WO2023213143A1
WO2023213143A1 PCT/CN2023/081514 CN2023081514W WO2023213143A1 WO 2023213143 A1 WO2023213143 A1 WO 2023213143A1 CN 2023081514 W CN2023081514 W CN 2023081514W WO 2023213143 A1 WO2023213143 A1 WO 2023213143A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic piston
screw
main body
container
plastic
Prior art date
Application number
PCT/CN2023/081514
Other languages
English (en)
French (fr)
Inventor
杨海英
Original Assignee
洽兴包装工业（中国）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 洽兴包装工业（中国）有限公司 filed Critical 洽兴包装工业（中国）有限公司
Publication of WO2023213143A1 publication Critical patent/WO2023213143A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/054—Means for supplying liquid to the outlet of the container
    • A45D2200/055—Piston or plunger for supplying the liquid to the applicator

Definitions

  • the embodiments of the present application relate to the field of cosmetic packaging materials, and in particular to a plastic piston, stopper rod combination and a rotating discharge container.
  • the plastic piston and screw can be made into a stopper-rod combination.
  • the stopper-rod combination can be installed in the container body.
  • the plastic piston moves into the container through the rotation of the screw, and then the material body is squeezed through the hollow screw. Press to the outside of the container.
  • the plug-rod assembly when the plug-rod assembly is assembled, after the contact end surface between the plastic piston and the screw rod interferes, when the assembly machine continues to rotate the plastic piston, the meshing relationship between the plastic piston and the screw rod will is damaged, resulting in the stopper-rod combination being unable to properly squeeze the material to the outside of the container body during use.
  • the embodiment of the present application provides a plastic piston, stopper rod combination and a rotating discharge container.
  • the technical solutions are as follows:
  • a plastic piston includes: a screw thread portion and a main body.
  • the main body is annular.
  • the screw thread portion is disposed inside the annular structure of the main body. ;
  • the screw thread portion is made of a first material
  • the main body is made of a second material
  • the hardness of the first material is greater than the hardness of the second material
  • a plug rod assembly includes: a plastic piston and a screw rod; the plastic piston includes a screw thread portion and a main body, the main body is annular, and the screw rod The thread portion is arranged inside the annular structure of the main body; the thread portion is made of a first material, the main body is made of a second material, and the hardness of the first material is greater than that of the second material. hardness;
  • the plastic piston engages with the screw through the screw thread portion, and the plastic piston is sleeved on the screw.
  • a rotating discharging container which includes: a stopper rod assembly, a container body and an applicator head;
  • the plug rod assembly includes: a plastic piston and a screw rod;
  • the plastic piston includes a screw thread portion and a main body, the main body is annular, and the screw thread portion is arranged inside the annular structure of the main body;
  • the screw thread portion The tooth part is made of a first material, the main body is made of a second material, and the hardness of the first material is greater than the hardness of the second material;
  • the plastic piston engages with the screw through the thread part. , the plastic piston is sleeved on the screw;
  • the stopper rod assembly is plugged and installed in the container body, the material is filled in the cavity surrounded by the plastic piston and the container body, and the screw seals the container mouth of the container body;
  • the first end of the screw is equipped with the applicator head, and the first end is an end located outside the container body; the second end of the screw is provided with a feed port, and the second end is located outside the container body.
  • One end in the container body; the plastic piston is clamped in the container body;
  • the screw includes an extension portion exposed outside the container body, and the extension portion is used to drive the plastic piston to rotate toward the inside of the container body while rotating around the screw.
  • the plastic piston provided by this application includes a main body made of softer material and a threaded portion made of harder material, wherein the threaded portion is located inside the annular main body, so the plastic piston Can be assembled to parts equipped with external threads. Due to the increased hardness of the threaded portion, the plastic piston reduces the risk of damaging the threads during assembly, while maintaining airtightness through the body of a softer material. At the same time, this application also provides a plug-rod combination and a rotating discharge container using the above-mentioned plastic piston. Due to the enhanced hardness of the thread part in the plastic piston, the risk of force damage between the thread part of the piston and the thread of the screw is reduced, thus reducing the defective rate of the plug-rod combination in industrial production. Material waste is reduced.
  • Figure 1 is a schematic cross-sectional view of a plastic piston provided by an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of a plastic piston provided based on the embodiment shown in FIG. 1 .
  • FIG. 3 is a schematic diagram of the first end face of a plastic piston provided based on the embodiment shown in FIG. 1 .
  • Figure 4 is an exploded view of the structure of a stopper rod assembly provided by an embodiment of the present application.
  • FIG. 5 is a schematic end view of a stopper rod assembly based on the embodiment shown in FIG. 4 .
  • FIG. 6 is a schematic diagram of another stopper rod assembly based on the embodiment shown in FIG. 4 .
  • FIG. 7 is a schematic diagram of a second substructure provided based on the embodiment shown in FIG. 6 .
  • Figure 8 is an exploded view of the structure of a rotating discharging container provided by an embodiment of the present application.
  • FIG. 9 is a cross-sectional view of the rotating discharge container provided based on the embodiment shown in FIG. 8 .
  • FIG. 10 is a perspective view of a rotating discharging container provided based on the embodiment shown in FIG. 8 .
  • reference signs plastic piston 100, screw thread part 120, main body 140, scraper part 160, screw 200, extension part 210, first end face 30, first substructure 31, contact end face 500, second end face 50,
  • the second substructure 51 includes an arched bump 711, a square bump 712, a trapezoidal bump 713, a rotating discharge container 800, a container body 810, an applicator head 820, and an outer cover 830.
  • plural means two or more unless otherwise specified.
  • “And/or” describes the relationship between associated objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. character “/” generally indicates that the related objects are an "or” relationship.
  • the "instruction” mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.
  • correlate can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.
  • Plastic piston A piston that can be formed through a plastic molding process.
  • the plastic piston is an annular structure with a hole in the middle.
  • the plastic piston includes a screw thread portion and a main body, and the screw thread portion is arranged inside the opening.
  • Material body refers to the cosmetic material body itself, and the material state of the material body can be fluid.
  • the fluid may be a liquid with good fluidity or a paste-like substance with a relatively viscous state, which is not limited in the embodiments of the present application.
  • the material body can be a highly volatile substance.
  • the material may be liquid foundation, essence, facial cream or toner, etc.
  • the material body may be a highly volatile substance.
  • the material body can still be filled in the rotating discharge container provided by this application and can be used normally by the user.
  • the cosmetic product when this application is applied in the European region, can be in compliance with the regulations of the European Parliament (the European Parliament and of the Council, EC) on November 30, 2009 related to cosmetics. product.
  • the material mentioned in this application can be understood as another name for cosmetics.
  • cosmetic material body can also be regarded as a term for cosmetics.
  • Plug rod assembly includes a plastic piston and a screw rod.
  • the outer edge of the screw rod is provided with a first screw thread.
  • the plastic piston is provided with an opening in the center.
  • the inner edge of the opening is provided with a second screw thread.
  • the first thread meshes with the second thread so that the plastic piston is sleeved on the screw rod and then assembled into a plug-rod assembly.
  • the plastic piston includes a threaded part and a main body, the main body is annular, and the threaded part is arranged on the ring of the main body. inside of the structure.
  • the screw thread part is made of a first material
  • the main body is made of a second material.
  • the hardness of the first material is greater than the hardness of the second material.
  • the screw can also be made by plastic molding process.
  • Plastic molding process can include injection molding process, injection molding process (Injection Molding) (also known as injection molding process), insert injection molding process (Insert Molding), two-color injection molding process, micro-foam injection molding process, nano injection molding (Nano Molding Technology) , NMT), at least one of a blow molding process and an extrusion molding process.
  • injection Molding injection molding process
  • Insert injection molding process Insert injection molding process
  • two-color injection molding process two-color injection molding process
  • micro-foam injection molding process micro-foam injection molding process
  • nano injection molding Nano Molding Technology
  • Applicator head elastically deformable and permeable to liquids.
  • the applicator head can infiltrate the cosmetic material stored in the container body. After the applicator head is infiltrated into the cosmetic material body, the user can apply the cosmetic material body to the user's face or other body surface parts.
  • the applicator head can be an applicator fabric, and the applicator fabric can be made of woven fabric, non-woven fabric or another non-woven material (such as foam or sponge). Structurally speaking, the applicator head can be sleeved on the first end of the screw rod.
  • the applicator head may also include a discharge port connected to the first end.
  • the applicator head can also be a plastic applicator head or a metal applicator head.
  • the metal applicator head can be zinc alloy, aluminum alloy or stainless steel.
  • the stainless steel may be food-grade steel, such as 316 model stainless steel or 304 model stainless steel.
  • the applicator head may be a sponge head made of sponge.
  • Figure 1 is a schematic cross-sectional view of a plastic piston provided by an embodiment of the present application.
  • the plastic piston 100 includes a thread portion 120 and a main body 140 .
  • the main body 140 is located on the outer layer of the thread portion 120 .
  • the thread portion 120 is located on the inner layer of the main body 140 .
  • the main body 140 is annular, and a screw thread portion 120 is provided inside the annular structure.
  • the thread portion 120 is embedded inside the main body 140 .
  • the thread portion 120 is made of a first material, and the main body 140 is made of a second material. At the same time, the hardness of the first material is greater than the hardness of the second material.
  • both the first material and the second material are plastic materials that can be processed through a plastic molding process.
  • the manufacturing methods of the plastic piston 100 include the following two methods.
  • the first method is snap-in assembly
  • the second method is two-shot injection molding.
  • the screw thread portion 120 and the main body 140 are two independent injection molded parts. Each independent injection molded part corresponds to a set of molds. After the above two injection molded parts are produced, the screw thread portion 120 and the main body 140 are assembled into one body by snapping.
  • the worker can insert the threaded portion 120 into the hole of the main body 140 so that the threaded portion 120 is locked inside the main body 140 .
  • the factory produces special jigs.
  • the worker uses a jig to press the threaded portion 120 into the main body 140, so that the threaded portion 120 and the main body 140 are assembled into one body through snap-fitting.
  • the screw thread portion 120 and the main body 140 can be a fused component obtained through two injection moldings in a mold, that is, the plastic piston 100 .
  • the same set of molds first uses a first material to inject the thread portion 120; and then uses a second material to inject the main body 140.
  • the same set of molds first uses the second material to inject the main body 140; and then uses the first material to inject the thread portion 120.
  • the thread portion 120 is injection molded through a first mold. Subsequently, the injection-molded thread portion 120 is moved to a second mold, and the second material is used to inject the main body 140 in the second mold, so that the thread portion 120 and the main body 140 are fused, and the plastic piston 100 is obtained.
  • the main body 140 is injection molded through a third mold. Subsequently, the injection-molded main body 140 is moved to a fourth mold, and the first material is used to inject the threaded portion 120 into the fourth mold, so that the threaded portion 120 and the main body 140 are fused, and the plastic piston 100 is obtained.
  • this molding method is called transfer injection molding or insert injection molding.
  • the embodiment of the present application provides a plastic piston, which includes a threaded portion and a main body, wherein the threaded portion is disposed inside the annular main body, the threaded portion is made of the first material, and the main body Made of a second material, the hardness of the first material is greater than the hardness of the second material. Since the hardness of the threaded part is greater than the hardness of the main body, this application can ensure that the plastic piston body is airtight through softer materials while improving the strength between the threaded part and other meshed accessories, making the threaded part The parts will not be damaged due to excessive assembly torque.
  • Figure 2 is a schematic cross-sectional view of a plastic piston provided based on the embodiment shown in Figure 1.
  • the plastic piston 100 includes a thread portion 120 , a main body 140 and a scraper portion 160 .
  • the scraping part 160 is disposed on a side of the thread part 120 that contacts the material body in the axial direction of the plastic piston 100 .
  • the scraping part 160 may be concentric circles surrounding the axial direction of the plastic piston 100 , and the number of the concentric circles may be one or multiple. Wherein, the plane of the concentric circles of the concentric scraping portion 160 may be perpendicular to the axis of the plastic piston 100 , or may not be perpendicular to the axis of the plastic piston 100 . This application does not limit this.
  • the scraping part 160 may also be a single-turn thread, which is not limited in the embodiment of the present application.
  • the inwardly protruding flange of the scraper portion 160 may be in an arch shape, a square shape, a trapezoid shape or other irregular shapes, which is not limited in this application.
  • FIG. 3 is a schematic diagram of the first end surface of a plastic piston provided based on the embodiment shown in FIG. 1 .
  • a first substructure 31 is provided on the first end surface 30 of the plastic piston.
  • the first substructure 31 is used to limit the distance between the first end surface 30 and the second end surface to be greater than or equal to a preset threshold.
  • the preset threshold is the value preset before the plastic piston is used with the corresponding accessories.
  • the function of this preset threshold is to ensure that a reasonable distance is maintained between the first end face 30 and the second end face of the plastic piston, and to prevent locking between the plastic piston and the screw where the second end face is located. That is, the second end surface is the surface on the screw rod that the plastic piston meshes with, facing the first end surface.
  • the diameter of the circle enclosed by the scraper part that is, the inner diameter of the scraper part is smaller than the outer diameter of the screw thread part.
  • the scraper part can appropriately interfere with the threads on other accessories that are engaged with the thread part, thereby achieving the effect of scraping out the material body on the threads on other accessories.
  • Figure 4 is an exploded view of the structure of a plug-rod assembly provided by an embodiment of the present application.
  • the plug-rod assembly includes a plastic piston 100 and a screw rod 200 .
  • the plastic piston 100 includes a threaded portion and a main body.
  • the main body is annular.
  • the threaded portion is arranged inside the annular structure of the main body.
  • the threaded portion is made of a first material.
  • the main body is made of a second material.
  • the first material is The hardness is greater than the hardness of the second material.
  • the plastic piston 100 is engaged with the screw rod 200 through the screw thread portion, and the plastic piston 100 is sleeved on the screw rod 200 .
  • the outer surface of the screw rod 200 is provided with threads that match the thread portion.
  • the screw 200 includes an extension 210 .
  • the extension part 210 and the screw body can be combined into an integral accessory for processing.
  • the extension part 210 and the screw body can be processed separately to facilitate industrial production and improve production efficiency. It should be noted that in industrial production, in order to improve efficiency, facilitate processing or save materials, this A single component shown in the application can be composed of multiple sub-components, and multiple components can also be combined into one component for processing. This application does not limit this.
  • the plug rod assembly disclosed in the embodiment of the present application includes a plastic piston and a screw rod. Since the plastic piston engages with the screw rod through the screw thread portion, and the piston is sleeved on the screw rod, the piston can generate relative motion with the screw rod. Rotate, thereby realizing the function of the piston extruding the material body. Among them, since the hardness of the thread part is greater than the hardness of the main body of the plastic piston, the plastic piston can reduce the risk of damaging the thread during assembly and reduce the risk of force damage between the thread part of the piston and the thread of the screw. , thereby reducing the defective rate of the plug-rod combination in industrial production and reducing material waste.
  • FIG. 5 is a schematic end view of a plug rod assembly based on the embodiment shown in FIG. 4 .
  • the contact end surface 500 is used to indicate the contact end surface between the plastic piston and the screw rod, and the contact end surface is perpendicular to the axis of the screw rod.
  • the contact end surface 500 includes a first end surface 30 and a second end surface 50 .
  • the first end surface 30 is located in the plastic piston 100
  • the second end surface 50 is located in the screw body. That is, the second end surface 50 is located in the screw 200 middle.
  • the first end surface 30 and the second end surface 50 are arranged opposite to each other. In other words, the first end surface 30 and the second end surface 50 are arranged facing each other.
  • FIG. 6 is a schematic diagram of another stopper rod combination provided based on the embodiment shown in FIG. 4 .
  • the second end surface 50 of the screw 200 is provided with a second substructure 51
  • the first end surface 30 of the plastic piston 100 is provided with a first substructure 31.
  • the first end surface 30 and the second end surface 50 are arranged opposite to each other.
  • the first substructure 31 is used to block each other from the second substructure 51
  • the first substructure 31 is used to limit the distance between the first end surface 30 and the second end surface 50 to be greater than or equal to a preset threshold.
  • the first end surface 30 and the first substructure 31 both belong to the main body 140 of the plastic piston.
  • the first substructure 31 and the second substructure 51 block each other, and the hardness of the first substructure 31 is smaller than the hardness of the second substructure 51 .
  • the plastic piston in the plug-rod assembly is engaged with the screw through threads, the plastic piston is assembled onto the screw from the second end of the screw.
  • the plastic piston engages with the screw and rotates until the first substructure and the second substructure block each other, the plastic piston stops precessing. It can be seen that the assembly method provided by method one can avoid locking caused by the excessive contact area between the screw and the plastic piston.
  • the first substructure and/or the second substructure may be damaged. Furthermore, the first substructure and/or the second substructure will continue to approach the end surface they face.
  • the first substructure may be in contact with the second end surface.
  • the second substructure may be in contact with the first end surface.
  • the mutual blocking scheme between the first substructure and the second substructure can provide at least two measures to prevent the contact area between the plastic piston and the screw from being too large.
  • the debris generated by the collision between the first substructure and the second substructure will also be blocked by the plastic piston on the side away from the material body, ensuring the cleanliness of the material body.
  • both the first end surface and the second end surface may be annular. If 360° of the ring is taken as the total range of distribution. Then the first substructure on the first end face can be evenly distributed, and the second substructure on the second end face can also be evenly distributed.
  • first substructures are evenly distributed on the first end face, and the number of the first substructures is at least two; the second substructures are evenly distributed on the second end face, and the number of the second substructures is at least two.
  • the angle corresponding to the arc between each substructure is 180°.
  • the angle corresponding to the arc between each substructure is 120°.
  • the angle corresponding to the arc between each substructure is 90°.
  • the distribution rule of the second substructure on the second end face can also be the same as the distribution of the first substructure on the first end face.
  • first substructures on the first end surface may be equal to the number of second substructures on the second end surface.
  • the number of the first substructures is an even number, and/or the number of the second substructures is an even number.
  • the plug rod assembly provided by this application simultaneously provides a first substructure on the first end face and a second substructure on the second end face. Since the first substructure can block each other when the first end face is close to the second end face, measures such as excessive contact area between the plastic piston and the screw are avoided, and the possibility of locking between the plastic piston and the screw is reduced. possibility.
  • FIG. 7 is a schematic diagram of the second substructure provided based on the embodiment shown in FIG. 6 .
  • the shape of the second substructure 51 located on the screw 200 can be flexibly set according to actual needs.
  • the shape of the second substructure 51 includes but is not limited to at least one of arched bumps 711 , square bumps 712 and/or trapezoidal bumps 713 .
  • the second son The shape of the structure 521 may also include other shapes. The above shapes are only schematic illustrations and do not constitute a limitation.
  • the shape of the first substructure includes but is not limited to at least one of arched bumps, square bumps and/or trapezoidal bumps.
  • the plug rod assembly provided by the embodiment of the present application increases the hardness through the screw thread part of the plastic piston. Therefore, the plastic piston can reduce the risk of damaging the screw thread during assembly, and improves the plug rod assembly's resistance to oversize during assembly. The influence of torque reduces the defective rate of plug-rod combinations in industrial production and reduces material waste.
  • FIG. 8 is an exploded view of the structure of a rotating discharging container provided by an embodiment of the present application.
  • the rotating discharging container 800 includes an outer cover 830 , an applicator head 820 , an extension 210 , a screw 200 , a plastic piston 100 and a container body 810 .
  • the stopper rod assembly includes: a plastic piston 100 and a screw rod 200; the plastic piston 100 includes a threaded portion 120 and a main body 140.
  • the main body 140 is annular, and the threaded portion 120 is disposed on the annular structure of the main body 140.
  • the screw thread portion 120 is made of the first material
  • the main body 140 is made of the second material, and the hardness of the first material is greater than the hardness of the second material
  • the plastic piston 100 engages with the screw rod 200 through the thread portion 120, and the plastic piston 100 Sleeved on the screw 200.
  • the stopper rod assembly is plugged and installed in the container body 810, the material is filled in the cavity surrounded by the plastic piston 100 and the container body 810, and the screw rod 200 seals the container mouth of the container body 810; the first end of the screw rod 200 is installed There is an applicator head 820, the first end of which is located outside the container body 810; the second end of the screw 200 is provided with a feed port, and the second end is located within the container body 810; the plastic piston 100 is clamped on the container body 810 middle.
  • the screw rod 200 includes an extension portion 210 exposed outside the container body 810 .
  • the extension portion 210 is used to drive the plastic piston 100 to rotate toward the inside of the container body 810 while rotating around the screw rod 200 .
  • the feed port can be provided at the bottom end of the screw 200 .
  • the feed port may be an opening upwardly facing the container body 810 , that is, an opening formed by a hollow bottom surface of the screw 200 .
  • the screw can also be provided with an anti-volatilization structure in the first end, and the anti-volatilization structure is arranged in the tubular cavity of the screw.
  • the anti-volatilization structure can function as a one-way valve, allowing the material to pass through when extruding the container body; at the same time, allowing the material to close the discharge channel provided by the screw when not extruding from the container body.
  • the anti-volatility structure can be a one-way valve.
  • the one-way valve can be a combination of a ball and a spring.
  • the applicator head includes a discharge port connected to the first end of the screw, and a convex plug is provided on the inside of the outer cover.
  • the convex plug is used to block the discharge port when the outer cover is closed with the rotating discharge container.
  • Figure 9 is a cross-sectional view of a rotating discharging container provided based on the embodiment shown in Figure 8.
  • it includes an outer cover 830, an applicator head 820, an extension part 210, a screw 200, a plastic piston 100 and a container body 810.
  • the plastic piston 100 includes a thread portion 120 and a main body 140 .
  • the plastic piston is screwed into the screw from the first end during the assembly stage of rotating the discharging container until the rotational torque between the plastic piston and the screw reaches the first torque threshold.
  • the plastic piston and screw are two separate and independent parts before the assembly stage. In order to achieve the effect during the use stage, when the plastic piston rotates and moves downward into the container body, the material body is pressed into the feed hole at the lower end of the screw and flows out from the applicator head. When assembling the rotating discharge container, you need to rotate the plastic piston to the position where the upper end is close to the screw.
  • the plastic piston provided by this application can enhance the strength of the screw thread portion of the plastic piston during the assembly process to prevent the screw thread portion of the plastic piston from being damaged when the rotational torque between the plastic piston and the screw reaches the first torque threshold. Damaged due to insufficient strength.
  • the plastic piston is provided with airtightness through the soft and elastic body 140 .
  • FIG. 10 is a perspective view of a rotating discharging container provided based on the embodiment shown in FIG. 8 .
  • the rotating discharging container includes an outer cover 830 , an extension 210 and a container body 810 .
  • the extension part 210 can be rotated so that the material body is extruded from the container body 810, and is applied on the user's body surface through the applicator head, thereby smearing the material body on the user's body surface.
  • the rotary discharging container provided by the embodiment of the present application can reduce the damage to the thread portion of the plastic piston in the rotary discharging container through the pre-designed structure of the plastic piston during the assembly process. risk, thereby ensuring the normal function of the rotating discharge container during use, thereby reducing the defective rate of the plug-rod combination in industrial production and reducing material waste.
  • first feature and second feature may include one or more of these features.
  • plural means two or more than two.
  • a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in direct contact with each other. additional characteristic contacts between.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is horizontally higher than Second characteristic.

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Abstract

本申请实施例公开了一种塑胶活塞、塞杆组合及旋动出料容器，属于化妆品包材领域，本申请实施例提供的一种塑胶活塞，包括螺牙部和主体，其中螺牙部设置在形为环状的主体的内侧，螺牙部采用第一材料制成，而主体采用第二材料制成，第一材料的硬度大于第二材料的硬度。由于螺牙部的硬度大于主体的硬度，因此本申请能够在保证塑胶活塞本体通过较软材料实现气密性的同时，提高了螺牙部与所啮合的其他配件之间的强度，使得螺牙部不会因装配扭力过大而损坏。

Description

塑胶活塞、塞杆组合及旋动出料容器 技术领域
本申请实施例涉及化妆品包材领域，特别涉及一种塑胶活塞、塞杆组合及旋动出料容器。
背景技术
在化妆品包材领域中，塑胶活塞和螺杆可以制成塞杆组合，该塞杆组合能够将安装在容器本体中，通过螺杆转动使得塑胶活塞向容器内部移动，进而将料体通过中空的螺杆挤压到容器外部。
在一些可选的使用方式中，塞杆组合在装配时，塑胶活塞和螺杆之间的接触端面发生过盈后，在装配机器继续旋动塑胶活塞时，塑胶活塞和螺杆之间的啮合关系将被破坏，导致塞杆组合在使用时无法正常将料体挤压到容器本体外部。
发明内容
本申请实施例提供了一种塑胶活塞、塞杆组合及旋动出料容器。所述技术方案如下：
根据本申请的一方面内容，提供了一种塑胶活塞，所述塑胶活塞包括：螺牙部和主体，所述主体为环状，所述螺牙部设置于所述主体的环状结构的内侧；
所述螺牙部由第一材料制成，所述主体由第二材料制成，所述第一材料的硬度大于所述第二材料的硬度。
根据本申请的另一方面内容，提供了一种塞杆组合，所述塞杆组合包括：塑胶活塞和螺杆；所述塑胶活塞包括螺牙部和主体，所述主体为环状，所述螺牙部设置于所述主体的环状结构的内侧；所述螺牙部由第一材料制成，所述主体由第二材料制成，所述第一材料的硬度大于所述第二材料的硬度；
所述塑胶活塞通过所述螺牙部与所述螺杆啮合，所述塑胶活塞套接于所述螺杆上。
根据本申请的另一方面内容，提供了一种旋动出料容器，所述旋动出料容器包括：塞杆组合、容器本体和涂抹头；
所述塞杆组合包括：塑胶活塞和螺杆；所述塑胶活塞包括螺牙部和主体，所述主体为环状，所述螺牙部设置于所述主体的环状结构的内侧；所述螺牙部由第一材料制成，所述主体由第二材料制成，所述第一材料的硬度大于所述第二材料的硬度；所述塑胶活塞通过所述螺牙部与所述螺杆啮合，所述塑胶活塞套接于所述螺杆上；
所述塞杆组合插接安装于所述容器本体中，料体灌装于所述塑胶活塞与所述容器本体围成的空腔中，且所述螺杆封住所述容器本体的容器口；所述螺杆的第一端安装有所述涂抹头，所述第一端是位于所述容器本体外的一端；所述螺杆的第二端设有进料口，所述第二端是位于所述容器本体内的一端；所述塑胶活塞卡接于所述容器本体中；
所述螺杆包括暴露在所述容器本体外的延展部，所述延展部用于在绕所述螺杆转动的状态中带动所述塑胶活塞向所述容器本体内部旋动。
本申请的有益效果是：本申请提供的塑胶活塞包括由较软材料制成的主体和由较硬材料制成的螺牙部，其中，螺牙部位于环状的主体的内侧，因此塑胶活塞可以装配到配有外螺牙的部件上。由于螺牙部增加了硬度，因此塑胶活塞可以降低在装配时损坏螺牙的风险，同时通过较软材料的主体保持气密性。同时本申请还提供了应用上述塑胶活塞的塞杆组合以及旋动出料容器。由于塑胶活塞中的螺牙部的硬度增强，因此实现了降低了活塞的螺牙部和螺杆的螺牙之间的受力损坏的风险，从而降低了塞杆组合在工业化生产中的不良率，降低了物料浪费。
附图说明
为了更清楚地介绍本申请实施例中的技术方案，下面将对本申请实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是本申请实施例提供的一种塑胶活塞的剖面示意图。
图2是基于图1所示实施例提供的一种塑胶活塞的剖面示意图。
图3是基于图1所示实施例提供的一种塑胶活塞的第一端面的示意图。
图4是本申请实施例提供的一种塞杆组合的结构爆炸图。
图5是基于图4所示实施例提供的一种塞杆组合的端面示意图。
图6是基于图4所示实施例提供的另一种塞杆组合的示意图。
图7是基于图6所示实施例提供的第二子结构的示意图。
图8是本申请实施例提供的一种旋动出料容器的结构爆炸图。
图9是基于图8所示实施例提供的旋动出料容器的剖面图。
图10是基于图8所示实施例提供的一种旋动出料容器的立体视图。
其中，附图标记：塑胶活塞100，螺牙部120，主体140，刮料部160，螺杆200，延展部210，第一端面30，第一子结构31，接触端面500，第二端面50，第二子结构51，拱状凸块711，方形凸块712，梯形凸块713，旋动出料容器800，容器本体810，涂抹头820，外盖830。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请的描述中，需要理解的是，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。此外，在本申请的描述中，除非另有说明，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符 “/”一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
为了便于理解，下面对本申请出现的名词进行介绍，详情如下。
塑胶活塞：可以通过塑料成型工艺成型得到的活塞。在本申请中，该塑胶活塞是中部开孔的环状结构。塑胶活塞包括螺牙部和主体，螺牙部设置在该开孔的内侧。
料体：指化妆品料体本身，该料体的物质状态可以是流体。在详细的分类中，流体可以是流动性较好的液体，也可以是状态较为粘稠的糊状物质，本申请实施例对此不做限定。
可选的，在一种可能的应用方式中，料体可以是挥发性较强的物质。例如，作为一种用于化妆的料体，该料体可以是粉底液、精华水、面霜或爽肤水等等物质。在上述物质中，料体可以是具有较强挥发性的物质。当料体具备较强的挥发性时，该料体仍然可以灌装在本申请提供的旋动出料容器中，能够正常被用户所使用。
可选的，当本申请应用在欧洲地区时，化妆品(cosmetic product)可以是符合欧洲议会(the European Parliament and of the Council，EC)在2009年11月30日与化妆品有关的议会中的规定的产品。其中，本申请提及的料体可被理解为化妆品的另一种称呼。本申请中，化妆品料体同样可以被视作为化妆品的一种称呼。
塞杆组合：包括塑胶活塞和螺杆，螺杆的外侧边缘上具有第一螺牙，塑胶活塞中央设有开孔，开孔的内侧边缘中设置有第二螺牙。其中，第一螺牙和第二螺牙啮合，使得塑胶活塞套接在螺杆上，进而装配成为塞杆组合。
其中，塑胶活塞包括螺牙部和主体，主体为环状，螺牙部设置于主体的环 状结构的内侧。螺牙部由第一材料制成，主体由第二材料制成，第一材料的硬度大于第二材料的硬度。需要说明的是，塑胶活塞通过螺牙部与螺杆啮合，塑胶活塞套接于螺杆上。
其中，螺杆也可以通过塑料成型工艺制成。塑料成型工艺可以包括注塑成型工艺注射成型工艺(Injection Molding)(又称注塑成型工艺)、嵌件注塑工艺(Insert Molding)、双色注塑工艺、微发泡注塑成型工艺、纳米注塑成型(Nano Molding Technology，NMT)、吹塑成型工艺和挤出成型工艺中的至少一种。
涂抹头：可弹性形变且可渗透液态物。涂抹头可以浸润容器本体中存储的化妆品料体。当涂抹头浸润化妆品料体后，使用者可以将化妆品料体施加在使用者的面部或者其他体表部位。针对涂抹头的材质而言，该涂抹头可以是涂抹织物，涂抹织物可以是由机织织物制成、也可以由非机织物或另一种非纺织材料(例如泡沫或海绵)制成。从结构上而言，涂抹头可以套接在螺杆的第一端上。可选的，涂抹头上还可以包括与第一端连通的出料口。
在另一种可能的实施方式中，涂抹头还可以是塑料涂抹头或者金属涂抹头。其中，金属涂抹头可以是锌合金、铝合金或不锈钢等。需要说明的是，不锈钢可以是食品级钢材，例如316型号的不锈钢材或304型号的不锈钢材。
可选的，在一种可能的实现方式中，涂抹头可以是由海绵制成的海绵头。
请参见图1，图1是本申请实施例提供的一种塑胶活塞的剖面示意图。在图1中，塑胶活塞100包括螺牙部120和主体140。若按照通俗的相对位置关系来看，主体140位于螺牙部120的外层。换言之，螺牙部120位于主体140的内层。
主体140为环状，环状结构的内侧设置有螺牙部120。螺牙部120内嵌在主体140的内侧。其中，螺牙部120由第一材料制成，主体140由第二材料制成。同时，第一材料的硬度大于第二材料的硬度。
需要说明的是，由于塑胶活塞100的整体材质是塑料。因此，第一材料和第二材料均属于可以通过塑料成型工艺处理的塑料材料。
从制造方式上来看，塑胶活塞100的制造方式包括以下两种。第一种方式是卡接组装的方式，第二种方式是两次注塑的方式。
在卡接组装的实现过程中，螺牙部120和主体140为两个独立的注塑件。 每一个独立的注塑件均对应一套模具。当上述两个注塑件制作完成之后，螺牙部120和主体140通过卡接的方式组装为一体。
在一种可能的卡接组装方式中，工人可将螺牙部120从主体140的孔中塞入，使得螺牙部120卡接在主体140内侧。
在另一种可能的卡接组装方式中，工厂生产专用的治具。工人使用治具将螺牙部120压入主体140中，使得螺牙部120和主体140通过卡接的方式组装为一体。
在两次注塑的实现过程中，螺牙部120和主体140可以是一个模具中经过两次注塑得到的融合在一起的组件，也即塑胶活塞100。
在一种可能的实现方式中，同一套模具首先使用第一材料注塑螺牙部120；然后再使用第二材料注塑主体140。或者，在另一种可能的实现方式中，同一套模具首先使用第二材料注塑主体140；然后再使用第一材料注塑螺牙部120。
在另一种可能的实现方式中，螺牙部120通过第一模具注塑而成。随后，注塑成型后的螺牙部120被移动至第二模具中，在第二模具中使用第二材料注塑主体140，从而实现螺牙部120和主体140融合，成型得到塑胶活塞100。
在另一种可能的实现方式中，主体140通过第三模具注塑而成。随后，注塑成型后的主体140被移动至第四模具中，在第四模具中使用第一材料注塑螺牙部120，从而实现螺牙部120和主体140融合，成型得到塑胶活塞100。在一种可能的称呼中，该成型方式被称为移模注塑或者嵌入式注塑。
综上所述，本申请实施例提供的一种塑胶活塞，包括螺牙部和主体，其中螺牙部设置在形为环状的主体的内侧，螺牙部采用第一材料制成，而主体采用第二材料制成，第一材料的硬度大于第二材料的硬度。由于螺牙部的硬度大于主体的硬度，因此本申请能够在保证塑胶活塞本体通过较软材料实现气密性的同时，提高了螺牙部与所啮合的其他配件之间的强度，使得螺牙部不会因装配扭力过大而损坏。
请参见图2，图2是基于图1所示实施例提供的一种塑胶活塞的剖面示意图。在图2中，塑胶活塞100包括螺牙部120、主体140和刮料部160。
可选的，刮料部160在塑胶活塞100的轴向上设置于螺牙部120的接触料体的一侧。
需要说明的是，刮料部160可以是围绕塑胶活塞100的轴向的同心圆，该同心圆的数量既可以是一个，也可以是多个。其中，形状为同心圆的刮料部160的同心圆所在的平面，既可以与塑胶活塞100的轴垂直，也可以与塑胶活塞100的轴不垂直。本申请对此不做限定。
在另一种可能的实现方式中，刮料部160还可以是单圈的螺纹，本申请实施例对此不做限定。
可选的，刮料部160向内突出的凸缘可以是拱形状、方形状、梯形状或其他不规则状，本申请对此不做限定。
请参见图3，图3是基于图1所示实施例提供的一种塑胶活塞的第一端面的示意图。在图3中，塑胶活塞的第一端面30上设置有第一子结构31。其中，该第一子结构31用于限制第一端面30和第二端面之间的距离大于等于预设阈值。需要说明的是，预设阈值是塑胶活塞在和相应的配件配合使用前预设的数值。该预设阈值的作用是为了保证塑胶活塞的第一端面30和第二端面之间的保持合理的距离，防止塑胶活塞和第二端面所在的螺杆之间锁死。也即，第二端面是塑胶活塞啮合的螺杆上面向第一端面的面。
在一种可能的实施方式中，在设置有刮料部的塑胶活塞中，刮料部所围成的圆的直径，也即刮料部的内径小于螺牙部的外径。在该设计中，刮料部能够适当与螺牙部啮合的其他配件上的螺牙过盈，实现将其他配件上的螺牙上的料体刮出的效果。
请参见图4，图4是本申请实施例提供的一种塞杆组合的结构爆炸图。在图4中，塞杆组合包括塑胶活塞100和螺杆200。塑胶活塞100包括螺牙部和主体，主体为环状，螺牙部设置于主体的环状结构的内侧，螺牙部由第一材料制成，主体由第二材料制成，第一材料的硬度大于第二材料的硬度。
在图4中，塑胶活塞100通过螺牙部与螺杆200啮合，塑胶活塞100套接于螺杆200上。相应地，螺杆200的外表面上设置有与螺牙部相配合的螺牙。
可选的，在图4中，螺杆200包括延展部210。在一种可能的设计方案中，延展部210和螺杆本体可以组合成一件整体的配件来加工。在另一种可能的设计方案中，延展部210和螺杆本体可以分别加工，便于工业生产提高生产效率。需要说明的是，工业生产中为了提高效率、便于加工或者节省物料等目的，本 申请中示出的单个部件可以由多个子部件组合而成，而多个部件也可以被合成为一个部件进行加工，本申请对此不做限定。
综上所述，本申请实施例公开的塞杆组合，包括塑胶活塞和螺杆，由于塑胶活塞通过螺牙部与螺杆啮合，活塞套接于所述螺杆上，因此活塞可以与螺杆之间产生相对转动，进而实现活塞挤压料体的功能。其中，由于螺牙部的硬度大于塑胶活塞的主体的硬度，因此塑胶活塞可以降低在装配时损坏螺牙的风险，降低了活塞的螺牙部和螺杆的螺牙之间的受力损坏的风险，从而降低了塞杆组合在工业化生产中的不良率，降低了物料浪费。
请参见图5，图5是基于图4所示实施例提供的一种塞杆组合的端面示意图。在图5中，接触端面500用于指示塑胶活塞和螺杆之间接触的端面，该接触端面垂直于螺杆的轴线。在一种可能的实施方式中，接触端面500包括第一端面30和第二端面50，第一端面30位于塑胶活塞100中，第二端面50位于螺杆本体，也即第二端面50位于螺杆200中。
其中，第一端面30和第二端面50相向设置。换言之，第一端面30和第二端面50是面对面设置的。
请参见图6，图6是基于图4所示实施例提供的另一种塞杆组合的示意图。在图6中，螺杆200的第二端面50上设置有第二子结构51，塑胶活塞100的第一端面30上设置有第一子结构31，第一端面30和第二端面50相向设置，第一子结构31用于和第二子结构51互相阻挡，且第一子结构31用于限制第一端面30和第二端面50之间的距离大于等于预设阈值。
示意性的，第一端面30和第一子结构31都属于塑胶活塞的主体140。
其中，第一子结构31与第二子结构51相互阻挡，第一子结构31的硬度小于第二子结构51的硬度。
需要说明的是，由于塞杆组合中的塑胶活塞是通过螺牙与螺杆啮合，塑胶活塞从螺杆的第二端装配至螺杆上。当塑胶活塞与螺杆啮合并旋转至第一子结构和第二子结构互相阻挡时，塑胶活塞停止旋进。由此可见，方式一提供的装配方式能够避免螺杆和塑胶活塞的接触面积过大造成的锁死。
在进一步的方式中，倘若装配的扭力过大，第一子结构和/或第二子结构发生破损。进而，第一子结构和/或第二子结构将继续向其所面向端面接近。可选 的，第一子结构可能与第二端面触碰。可选的，第二子结构可能与第一端面触碰。
由此可见，本申请提供的第一子结构与第二子结构互相阻挡的方案，能够有至少两道阻止塑胶活塞和螺杆的接触面积过大的措施。同时，对于第一子结构可能和第二子结构碰撞产生的碎屑，也会被塑胶活塞阻挡在远离料体的一侧，保证了料体的洁净。
在一种可能的方式中，第一端面和第二端面均可以是圆环状。若以圆环的360°为分布总的范围。则第一端面上的第一子结构可以均匀分布，且第二端面上的第二子结构也可以均匀分布。
也即，第一子结构在第一端面上均匀分布，第一子结构的数量为至少两个；第二子结构在第二端面上均匀分布，第二子结构的数量为至少两个。
例如，第一端面上设置2个第一子结构，则每个子结构之间的圆弧对应的角度是180°。再例如，第一端面上设置3个第一子结构，则每个子结构之间的圆弧对应的角度是120°。又例如，第一端面上设置4个第一子结构，则每个子结构之间的圆弧对应的角度是90°。
类似的，第二子结构在第二端面上的分布规则，也可以与第一子结构在第一端面上的分布相同。
需要说明的是，第一端面上的第一子结构的个数可以与第二端面上的第二子结构的个数相等。
在一种可能的方式中，第一子结构的个数为偶数个，和/或，第二子结构的个数为偶数个。
综上所述，本申请提供的塞杆组合，同时在第一端面上设置第一子结构，并在第二端面上设置第二子结构。由于，第一子结构可以在第一端面接近第二端面时与第二子结构互相阻挡，从而避免了塑胶活塞和螺杆的接触面积过大的措施，降低了塑胶活塞和螺杆之间锁死的可能性。
请参见图7，图7是基于图6所示实施例提供的第二子结构的示意图。
在图7中，位于螺杆200上的第二子结构51的形状可以根据实际需要而灵活设置。在一种可能的方式中，第二子结构51的形状包括但不限于拱状凸块711、方形凸块712和/或梯形凸块713中的至少一种。需要说明的是，第二子 结构521的形状还可以包括其他形状，上述形状仅为示意性说明，并不构成限定。
类似的，第一子结构的形状包括但不限于拱状凸块、方形凸块和/或梯形凸块中的至少一种。
综上所述，本申请实施例提供的塞杆组合，通过塑胶活塞的螺牙部增加了硬度，因此塑胶活塞可以降低在装配时损坏螺牙的风险，提高了塞杆组合抵抗组装时过大扭力的影响，从而降低了塞杆组合在工业化生产中的不良率，降低了物料浪费。
请参见图8，图8是本申请实施例提供的一种旋动出料容器的结构爆炸图。在图8中，该旋动出料容器800包括外盖830、涂抹头820、延展部210、螺杆200、塑胶活塞100和容器本体810。
在本申请实施例中，塞杆组合包括：塑胶活塞100和螺杆200；塑胶活塞100包括螺牙部120和主体140，主体140为环状，螺牙部120设置于主体140的环状结构的内侧；螺牙部120由第一材料制成，主体140由第二材料制成，第一材料的硬度大于第二材料的硬度；塑胶活塞100通过螺牙部120与螺杆200啮合，塑胶活塞100套接于螺杆200上。
塞杆组合插接安装于容器本体810中，料体灌装于塑胶活塞100与容器本体810围成的空腔中，且螺杆200封住容器本体810的容器口；螺杆200的第一端安装有涂抹头820，第一端是位于容器本体810外的一端；螺杆200的第二端设有进料口，第二端是位于容器本体810内的一端；塑胶活塞100卡接于容器本体810中。
螺杆200包括暴露在容器本体810外的延展部210，延展部210用于在绕螺杆200转动的状态中带动塑胶活塞100向容器本体810内部旋动。
需要说明的是，进料口可以设置在螺杆200的底端。该进料口可以上朝向容器本体810的开口，也即螺杆200的底面镂空形成的开口。
可选的，螺杆在第一端中还可以设置有防挥发结构，该防挥发结构设置于螺杆的管状空腔中。该防挥发结构可以起到单向阀的作用，令料体在挤出容器本体时能够通过；同时，令料体在不挤出容器本体时封闭螺杆提供的出料通道。一种可能的实现方式中，防挥发结构可以是一个单向阀。作为一种落地的实现 方式，该单向阀可以是球体加弹簧组合而成。
可选的，涂抹头包括与螺杆的第一端连通的出料口，外盖内侧设置有凸塞，凸塞用于在外盖盖合于旋动出料容器时封堵出料口。
请参见图9，图9是基于图8所示实施例提供的旋动出料容器的剖面图。在图9中，包括外盖830、涂抹头820、延展部210、螺杆200、塑胶活塞100和容器本体810。其中，塑胶活塞100包括螺牙部120和主体140。
在落地应用的场景中，塑胶活塞在旋动出料容器的装配阶段从第一端旋入螺杆，直至塑胶活塞和螺杆之间的旋动扭力达到第一扭力阈值。需要说明的是，塑胶活塞和螺杆在装配阶段之前是分离的独立两个部件。为了在使用阶段能够实现，塑胶活塞向容器本体内部旋转下移时将料体从螺杆下端的进料孔中压入，并从涂抹头中流出的效果。旋动出料容器在装配时需要将塑胶活塞旋转至上端靠近螺杆的位置。而本申请提供的塑胶活塞则能够在该装配过程中发挥增强塑胶活塞的螺牙部的强度，避免塑胶活塞和螺杆之间的旋动扭力达到第一扭力阈值时，由于塑胶活塞的螺牙部强度不足而损坏。与此同时，通过硬度较软且具有弹性的主体140为塑胶活塞提供气密性。
请参考图10，图10是基于图8所示实施例提供的一种旋动出料容器的立体视图。在图10中，旋动出料容器包括外盖830、延展部210和容器本体810。当用户拔开外盖830后，可以旋转延展部210，使得料体从容器本体810中被挤出，通过涂抹头在用户体表敷涂，实现将料体涂抹在用户体表的作用。
综上所述，本申请实施例提供的一种旋动出料容器，能够在装配的过程中，通过预先设计的塑胶活塞的结构，降低旋动出料容器中的塑胶活塞的螺牙部损坏的风险，从而保证了旋动出料容器在使用时的正常功能，进而降低了塞杆组合在工业化生产中的不良率，降低了物料浪费。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指 示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请的描述中，“第一特征”、“第二特征”可以包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上。在本申请的描述中，第一特征在第二特征“之上”或“之下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。在本申请的描述中，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。
以上所述仅为本申请的能够实现的示例性的实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种塑胶活塞，其特征在于，所述塑胶活塞包括：螺牙部和主体，所述主体为环状，所述螺牙部设置于所述主体的环状结构的内侧；
    所述螺牙部由第一材料制成，所述主体由第二材料制成，所述第一材料的硬度大于所述第二材料的硬度。
  2. 根据权利要求1所述的塑胶活塞，其特征在于，所述螺牙部和所述主体通过卡接的方式组装为一体，或，所述螺牙部和所述主体通过两次注塑的方式制为一体。
  3. 根据权利要求2所述的塑胶活塞，其特征在于，所述塑胶活塞还包括刮料部，所述刮料部在所述塑胶活塞的轴向上设置于所述螺牙部的接触料体的一侧。
  4. 根据权利要求3所述的塑胶活塞，其特征在于，所述塑胶活塞的第一端面上设置有第一子结构，所述第一子结构用于限制所述第一端面和第二端面之间的距离大于等于预设阈值，所述第二端面是所述塑胶活塞啮合的螺杆上面向所述第一端面的面。
  5. 根据权利要求3所述的塑胶活塞，其特征在于，所述刮料部的内径小于所述螺牙部的外径。
  6. 一种塞杆组合，其特征在于，所述塞杆组合包括：塑胶活塞和螺杆；所述塑胶活塞包括螺牙部和主体，所述主体为环状，所述螺牙部设置于所述主体的环状结构的内侧；所述螺牙部由第一材料制成，所述主体由第二材料制成，所述第一材料的硬度大于所述第二材料的硬度；
    所述塑胶活塞通过所述螺牙部与所述螺杆啮合，所述塑胶活塞套接于所述螺杆上。
  7. 根据权利要求6所述的塞杆组合，其特征在于，所述螺杆的第二端面上设置有第二子结构，所述塑胶活塞的第一端面上设置有第一子结构，所述 第一端面和所述第二端面相向设置，所述第一子结构用于和所述第二子结构互相阻挡，且所述第一子结构用于限制所述第一端面和第二端面之间的距离大于等于预设阈值。
  8. 一种旋动出料容器，其特征在于，所述旋动出料容器包括：塞杆组合、容器本体和涂抹头；
    所述塞杆组合包括：塑胶活塞和螺杆；所述塑胶活塞包括螺牙部和主体，所述主体为环状，所述螺牙部设置于所述主体的环状结构的内侧；所述螺牙部由第一材料制成，所述主体由第二材料制成，所述第一材料的硬度大于所述第二材料的硬度；所述塑胶活塞通过所述螺牙部与所述螺杆啮合，所述塑胶活塞套接于所述螺杆上；
    所述塞杆组合插接安装于所述容器本体中，料体灌装于所述塑胶活塞与所述容器本体围成的空腔中，且所述螺杆封住所述容器本体的容器口；所述螺杆的第一端安装有所述涂抹头，所述第一端是位于所述容器本体外的一端；所述螺杆的第二端设有进料口，所述第二端是位于所述容器本体内的一端；所述塑胶活塞卡接于所述容器本体中；
    所述螺杆包括暴露在所述容器本体外的延展部，所述延展部用于在绕所述螺杆转动的状态中带动所述塑胶活塞向所述容器本体内部旋动。
  9. 根据权利要求8所述的旋动出料容器，其特征在于，所述螺杆在所述第一端中设置有防挥发结构，所述防挥发结构设置于所述螺杆的管状空腔中。
  10. 根据权利要求8或9所述的旋动出料容器，其特征在于，所述旋动出料容器还包括外盖，所述涂抹头包括与所述第一端连通的出料口，所述外盖内侧设置有凸塞，所述凸塞用于在所述外盖盖合于所述旋动出料容器时封堵所述出料口。
PCT/CN2023/081514 2022-05-05 2023-03-15 塑胶活塞、塞杆组合及旋动出料容器 WO2023213143A1 (zh)

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