Valve-controlled slow-dispensing cosmetic container
By designing a valve-controlled slow-discharge cosmetic container, the flow rate of the cosmetic material is controlled by the fluid channel between the valve body and the discharge sleeve. This solves the problems of splashing and sealing when the cosmetic container is pumped out, improves the user experience and sealing effect, and extends the shelf life of the cosmetic.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI YINGYU PLASTIC PROD
- Filing Date
- 2023-11-29
- Publication Date
- 2026-04-24
AI Technical Summary
Existing cosmetic containers have a high flow rate when pumping out cosmetic materials, which can easily cause splashing and waste. In addition, the sealing effect is poor, which can easily lead to material contamination and oxidation.
A valve-controlled slow-discharge cosmetic container was designed. By setting up a base, material bag, pump core seat, pump core, panel, valve body and outer cover, the flow rate of cosmetic material is controlled by the fluid channel between the sealing ring of the valve body and the discharge sleeve, so as to achieve slow discharge. A soft rubber bag is used to improve the sealing effect.
It allows for slow flow of cosmetic ingredients, preventing splashing and backflow, improving the user experience, and extending the shelf life of cosmetics.
Smart Images

Figure CN117719784B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cosmetic container technology, specifically to a valve-controlled slow-discharge cosmetic container. Background Technology
[0002] Cosmetics are important items that people use to care for their skin.
[0003] Cosmetics come in various forms, such as solid creams and liquids with a certain viscosity. Cosmetic ingredients are generally sealed in airtight containers and then pumped out for use.
[0004] The inventors of this application have discovered that in existing cosmetic containers, the cosmetic material flows too quickly when pumped out, causing it to splash outwards, resulting in material waste and affecting the user experience; moreover, the sealing effect of the material is poor, which easily leads to material contamination and oxidation. Summary of the Invention
[0005] The purpose of this invention is to provide a valve-controlled slow-discharge cosmetic container that prevents splashing when the material is pumped out, thereby solving the problems mentioned in the background art.
[0006] This invention provides a valve-controlled slow-discharge cosmetic container, comprising: a base, a material bag, a pump core seat, a pump core, a panel, a valve body, and an outer cover;
[0007] The material bag includes: a rigid fixing ring and a soft rubber bag, wherein the fixing ring is disposed at the top of the soft rubber bag and is fastened to the base;
[0008] The pump core seat covers the soft plastic bag, thus sealing the soft plastic bag;
[0009] The pump core is mounted on the pump core seat and extends into the soft plastic bag;
[0010] The panel is a single piece, including: a side wall, a top cover, and a pressure plate. The side wall and the pressure plate are made of hard plastic, and the top cover is made of soft plastic.
[0011] The sidewall portion is fastened to the fixing ring and abuts against the pump core seat;
[0012] The top cover is provided with a discharge hole;
[0013] The outer diameter of the pressure plate is smaller than the outer diameter of the top cover, and it is disposed on the top cover. The pressure plate is provided with a discharge sleeve that communicates with the discharge hole. The discharge sleeve is fastened to the pump core and is used to drive the pump core to move up and down.
[0014] The inner wall of the discharge sleeve is provided with multiple protrusions at intervals;
[0015] The valve body is made of elastic material and is equipped with a sealing ring.
[0016] The valve body passes through the discharge hole and extends into the discharge sleeve. The sealing ring is embedded in the discharge hole and abuts against the discharge sleeve. A fluid channel is formed between the valve body and the discharge sleeve. The valve body is used to block the discharge hole. When the top cover is pressed, the valve body moves up and down with the top cover to open the discharge hole.
[0017] The outer cover is fastened to the side wall portion to cover the panel.
[0018] Based on the above scheme, the valve-controlled slow-discharge cosmetic container of the present invention comprises a base, a material bag, a pump core seat, a pump core, a panel, a valve body, and an outer cover. The material bag is disposed within the base and includes a retaining ring and a soft plastic bag. The pump core seat covers the soft plastic bag, and the pump core passes through the pump core seat. The panel includes a side wall, a top cover, and a pressure plate. The side wall is fastened to the retaining ring. The top cover has a discharge hole. The pressure plate is disposed on the top cover, and the discharge sleeve of the pressure plate is connected to the pump core. A protrusion is provided inside the discharge sleeve. The valve body has a sealing ring and passes through the discharge hole of the top cover, forming a fluid channel between the valve body and the discharge sleeve. The outer cover is fastened to the side wall. In the valve-controlled slow-discharge cosmetic container of the present invention, the suction channel of the pump core, the discharge sleeve of the pressure plate, the fluid channel between the valve body and the discharge sleeve, and the discharge hole of the panel are connected to form a continuous discharge channel. The sealing ring of the valve body seals the discharge hole of the top cover. Pressing the soft rubber cap on the panel moves the pump core up and down, pumping out the material. The material is blocked by the valve body, slowing its flow rate. Then, the material continues to flow upward through the fluid channel between the valve body and the discharge sleeve. Under the pressure of the material, the sealing ring of the valve body is pushed upward, and the material slowly flows out from the gap between the sealing ring and the cap onto the cap, adhering to the top surface of the cap without splashing. When the soft rubber cap on the panel is released, the sealing ring of the valve body quickly returns to its original position due to its elasticity, sealing the discharge hole of the cap and preventing backflow of the material. The inner liner of the container is made of a soft rubber bag, which provides better airtightness and extends the service life of the material.
[0019] In one feasible solution, the protrusion is provided with a snap-fit protrusion;
[0020] The valve body is provided with a snap-fit groove for the snap-fit protrusion to be inserted.
[0021] In one feasible embodiment, the bottom surface of the sealing ring is conical, and the outer thickness of the sealing ring is less than the inner thickness.
[0022] In one feasible solution, the top end face of the soft plastic bag is flat;
[0023] The pump core seat is provided with a limiting step, and the shoulder of the limiting step is provided with a sealing protrusion ring. The small end of the limiting step extends into the soft rubber bag, and the sealing protrusion ring is pressed into the top end face to form an interference fit.
[0024] In one feasible solution, the top cover is provided with a material-stopping protrusion.
[0025] In one feasible embodiment, the top cover is a concave arc shape inside the retaining ring.
[0026] In one feasible solution, the base is provided with a limiting groove;
[0027] The fixing ring is provided with a first protrusion, which is embedded in the limiting groove and abuts against the shoulder of the limiting groove.
[0028] In one feasible solution, the retaining ring is provided with a second convex ring;
[0029] The inner wall of the side wall is provided with multiple bayonet grooves for the second convex ring to be inserted.
[0030] Compared with the prior art, the present invention has the following beneficial effects:
[0031] 1. By reducing the flow rate of the material through the valve body, the material flows out of the top cover of the panel slowly, preventing splashing.
[0032] 2. Pressing the soft rubber panel top cover causes the pump core to move up and down, providing a better tactile experience when pressing.
[0033] 3. The valve body is an elastic body, which can automatically close the discharge hole to prevent material backflow.
[0034] 4. The material is packaged in a soft plastic bag, which provides a better seal between the bag and the pump core seat, resulting in a more airtight seal. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 This is a cross-sectional schematic diagram of a valve-controlled slow-discharge cosmetic container according to an embodiment of the present invention.
[0037] Figure 2 As described in the embodiments of the present invention Figure 1 Enlarged view of point A in the image;
[0038] Figure 3 This is an exploded view of the cosmetic container in an embodiment of the present invention;
[0039] Figure 4 This is a schematic diagram of the material bag in an embodiment of the present invention;
[0040] Figure 5 This is a front view schematic diagram of the panel in an embodiment of the present invention;
[0041] Figure 6 This is a perspective view of the panel in an embodiment of the present invention;
[0042] Figure 7 As described in the embodiments of the present invention Figure 6 Enlarged view of point B in the image;
[0043] Figure 8 This is a schematic diagram of the panel from another angle in an embodiment of the present invention;
[0044] Figure 9 This is a schematic diagram of the valve body in an embodiment of the present invention;
[0045] Figure 10 This is a schematic diagram of the discharging state of the cosmetic container in an embodiment of the present invention.
[0046] Numbering on the map:
[0047] 1. Base; 11. Limiting groove; 2. Material bag; 21. Fixing ring; 211. First convex ring; 212. Second convex ring; 22. Soft plastic bag; 3. Pump core seat; 31. Limiting step; 32. Sealing convex ring; 4. Pump core; 5. Panel; 51. Side wall; 511. Bayonet groove; 52. Top cover; 521. Discharge hole; 522. Material blocking convex ring; 53. Pressure plate; 531. Discharge sleeve; 5311. Protrusion block; 5312. Snap-fit protrusion; 6. Valve body; 61. Sealing convex ring; 62. Snap-fit groove; 7. Outer cover; 100. Material body. Detailed Implementation
[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0051] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0052] As described in the background section of this application, cosmetic ingredients are generally sealed in a sealed container and then pumped out for use.
[0053] The inventors of this application have discovered that in existing cosmetic containers, the cosmetic material flows too quickly when pumped out, causing it to splash outwards, resulting in material waste and affecting the user experience; moreover, the sealing effect of the material is poor, which easily leads to material contamination and oxidation.
[0054] To address the aforementioned problems, the inventors of this application have proposed a technical solution, the specific embodiments of which are as follows:
[0055] Figure 1 This is a cross-sectional schematic diagram of a valve-controlled slow-discharge cosmetic container according to an embodiment of the present invention. Figure 2 As described in the embodiments of the present invention Figure 1 Enlarged view of point A in the image. Figure 3 This is an exploded view of the cosmetic container in an embodiment of the present invention. Figure 4 This is a schematic diagram of the material bag in an embodiment of the present invention. Figure 5 This is a front view schematic diagram of the panel in an embodiment of the present invention. Figure 6 This is a perspective view of the panel in an embodiment of the present invention. Figure 7As described in the embodiments of the present invention Figure 6 Enlarged view of point B in the image. Figure 8 This is another schematic diagram of the panel in an embodiment of the present invention. Figure 9 This is a schematic diagram of the valve body in an embodiment of the present invention. Figure 10 This is a schematic diagram of the discharging state of the cosmetic container in an embodiment of the present invention.
[0056] like Figures 1 to 10 As shown, the valve-controlled slow-discharge cosmetic container of this embodiment includes: a base 1, a material bag 2, a pump core seat 3, a pump core 4, a panel 5, a valve body 6, and an outer cover 7.
[0057] The material bag 2 is a one-piece structure, including a rigid rubber retaining ring 21 and a soft rubber bag 22, with the top of the soft rubber bag 22 fixed to the retaining ring 21. The soft rubber bag 22 has the required flexibility and elasticity. The cosmetic material is stored inside the soft rubber bag 22. As the material is pumped out, the soft rubber bag 22 will continuously shrink inward. The retaining ring 21 has the required rigidity and hardness, facilitating the installation and fixation of the material bag 2.
[0058] The material bag 2 is placed inside the base 1, and the fixing ring 21 of the material bag 2 is provided with a buckle to fasten the material bag 2 to the base 1.
[0059] The pump core seat 3 covers the soft plastic bag 22 of the material bag 2, and the pump core seat 3 seals the soft plastic bag 22 of the material bag 2.
[0060] The pump core 4 is mounted on the pump core seat 3, and the bottom end of the pump core 4 extends into the soft plastic bag 22 of the material bag 2.
[0061] Panel 5 is a one-piece structure, including: side wall 51, top cover 52 and pressure plate 53. The side wall 51 and pressure plate 53 of panel 5 are made of hard plastic material, which has the required rigidity and hardness. The top cover 52 of panel 5 is made of soft plastic material, which has the required flexibility and elasticity.
[0062] The bottom end of the side wall portion 51 of the panel 5 is connected to the fixing ring 21 of the material bag 2, and the side wall portion 51 of the panel 5 abuts against the top surface of the pump core seat 3, pressing and fixing the pump core seat 3 onto the soft plastic bag 22 of the material bag 2.
[0063] The top cover 52 has a through discharge hole 521 at its center.
[0064] The outer diameter of the pressure plate 53 is smaller than the outer diameter of the top cover 52. The pressure plate 53 is set on the bottom surface of the top cover 52 and located at the center of the top cover 52. The central axis of the pressure plate 53 coincides with the central axis of the top cover 52. The pressure plate 53 is provided with a discharge sleeve 531 that communicates with the discharge hole 521 of the top cover 52. The discharge sleeve 531 extends away from the top cover 52. The bottom end of the discharge sleeve 531 is inserted into the suction channel of the pump core 4 and is fastened to the pump core 4. When the top cover 52 of the panel 5 is pressed, the pressure plate 53 drives the pump core 4 to move up and down together, and the pump core 4 pumps out the cosmetic material in the soft plastic bag 22.
[0065] Multiple protrusions 5311 are spaced apart on the inner circumference of the discharge sleeve 531, and the multiple protrusions 5311 are evenly distributed along the circumference of the discharge sleeve 531.
[0066] The valve body 6 is a solid part made of elastic material and has the required elasticity. The top of the valve body 6 is provided with a sealing protrusion 61 extending outward, which is adapted to the discharge hole 521 of the top cover 52.
[0067] The valve body 6 is inserted into the discharge hole 521 of the top cover 52. The sealing ring 61 of the valve body 6 is embedded in the discharge hole 521 of the top cover 52 and abuts against the top end face of the discharge sleeve 531. The bottom end of the valve body 6 extends into the discharge sleeve 531 of the pressure plate 53. The circumferential side wall of the valve body 6 abuts against the arc-shaped side wall of the protrusion 5311. The circumferential inner wall of the discharge sleeve 531, the circumferential outer wall of the valve body 6, and the side walls of the two adjacent protrusions 5311 form a fluid channel through which the feed body passes.
[0068] When the outer cover 7 is closed, it is connected to the side wall portion 51 of the panel 5 and is fastened to the side wall portion 51 of the panel 5, thus completing the covering and sealing of the panel 5.
[0069] In this embodiment, as Figure 10 As shown, the pump core's suction channel, the pressure plate's discharge sleeve, the fluid channel between the valve body and the discharge sleeve, and the panel's discharge hole form a continuous discharge channel. The valve body passes through the discharge hole of the top cover, and the valve body's sealing ring seals the top cover's discharge hole and the fluid channel.
[0070] Pressing the soft rubber cover on the panel causes the cover to move the valve body and pump core up and down together, pumping out material 100. The pumped material flows at a relatively fast speed, but is blocked by the valve body when it encounters it, slowing down the flow rate of material 100. Then, the material continues to flow upward through the fluid channel between the valve body and the discharge sleeve. Under the pressure of the material, the sealing ring of the valve body is pushed upward, and the material slowly flows out from the gap between the sealing ring of the valve body and the cover onto the top cover, adhering to the top surface of the cover, preventing material 100 from splashing. When the soft rubber cover on the panel is released, the cover moves the pressure plate and pump core upward to reset, and the sealing ring of the valve body quickly resets under its own elasticity, sealing the discharge hole of the cover and preventing the outflowing material 100 from flowing back, achieving the effect of a one-way valve.
[0071] As can be seen from the above, the valve-controlled slow-discharge cosmetic container of this embodiment comprises a base, a material bag, a pump core seat, a pump core, a panel, a valve body, and an outer cover. The material bag, located inside the base, includes a retaining ring and a soft plastic bag. The pump core seat covers the soft plastic bag, and the pump core passes through the pump core seat. The panel includes a side wall, a top cover, and a pressure plate. The side wall is fastened to the retaining ring. The top cover has a discharge hole. The pressure plate is located on the top cover, and the discharge sleeve of the pressure plate is connected to the pump core. A protrusion is provided inside the discharge sleeve. The valve body has a sealing ring and passes through the discharge hole of the top cover, forming a fluid channel between the valve body and the discharge sleeve. The outer cover is fastened to the side wall. In this valve-controlled slow-discharge cosmetic container, the pump core's suction channel, the pressure plate's discharge sleeve, the fluid channel between the valve body and the discharge sleeve, and the panel's discharge hole form a continuous discharge channel. The sealing ring of the valve body seals the discharge hole of the top cover. Pressing the soft rubber cap on the panel moves the pump core up and down, pumping out the material. The material is blocked by the valve body, slowing its flow rate. Then, the material continues to flow upward through the fluid channel between the valve body and the discharge sleeve. Under the pressure of the material, the sealing ring of the valve body is pushed upward, and the material slowly flows out from the gap between the sealing ring and the cap onto the cap, adhering to the top surface of the cap without splashing. When the soft rubber cap on the panel is released, the sealing ring of the valve body quickly returns to its original position due to its elasticity, sealing the discharge hole of the cap and preventing backflow of the material. The inner liner of the container is made of a soft rubber bag, which provides better airtightness and extends the service life of the material.
[0072] Optional, such as Figure 5 , Figure 6 , Figure 7 , Figure 8 ,as well as Figure 9 As shown, in this embodiment, the valve-controlled slow-discharge cosmetic container has a snap-fit protrusion 5312 extending inward at the bottom end of the protrusion 5311 inside the discharge sleeve 531 of the pressure plate 53.
[0073] The bottom circumferential side wall of the valve body 6 is provided with a snap-fit groove 62. The bottom end of the valve body 6 extends into the discharge sleeve 531. The snap-fit protrusion 5312 of the discharge sleeve 531 is embedded in the snap-fit groove 62 of the valve body 6, so that the valve body 6 is more firmly fixed on the panel 5. When the top cover 52 of the panel 5 is stopped, the sealing protrusion 61 of the valve body 6 can be reset more quickly.
[0074] Furthermore, in this embodiment of the valve-controlled slow-discharge cosmetic container, the bottom surface of the sealing ring 61 of the valve body 6 is conical, and the outer thickness of the sealing ring 61 is less than the inner thickness of the center. Of course, the top end face of the discharge sleeve 531 of the pressure plate 53 is adapted to the bottom surface of the sealing ring 61.
[0075] In this embodiment, when the top cover of the panel is pressed, the sealing ring of the valve body rises upward more quickly, and when the pressing stops, the sealing ring also resets more quickly, ensuring that the pumped material does not flow back.
[0076] Optional, such as Figure 1 , Figure 2 As shown, in this embodiment, the top end face of the soft plastic bag 22 of the material bag 2 is flat.
[0077] The pump core seat 3 is provided with a limiting step 31, and a sealing protrusion ring 32 is provided on the bottom surface of the step shoulder of the limiting step 31. The small end of the limiting step 31 of the pump core seat 3 extends into the soft plastic bag 22 of the material bag 2, and there is an interference fit between the limiting step 31 and the soft plastic bag 22. The step shoulder of the limiting step 31 of the pump core seat 3 abuts against the top end face of the soft plastic bag 22, and the sealing protrusion ring 32 is pressed into the top end face of the soft plastic bag 22, forming an interference fit with the soft plastic bag 22, so that the pump core seat 3 and the soft plastic bag 22 of the material bag 2 are more sealed.
[0078] Optionally, in this embodiment, the valve-controlled slow-discharge cosmetic container has a baffle ring 522 on the top cover 52 of the panel 5.
[0079] The baffle ring 522 is located on the outer circumference of the discharge hole 521 of the top cover 52, and the center of the baffle ring 522 coincides with the center of the discharge hole 521. The baffle ring 522 blocks the pumped material and prevents the material flowing out of the discharge hole 521 of the top cover 52 from spreading outward and leaving the top cover 52 during use.
[0080] Furthermore, such as Figure 10 As shown, in this embodiment, the valve-controlled slow-discharge cosmetic container has a top cover 52 that is concave to the inside of the baffle ring 522, which makes the pumped material 100 concentrated around the discharge hole 521 of the top cover 52, making it more convenient for users to use and reducing material waste.
[0081] Optional, such as Figure 2 , Figure 4 As shown, in this embodiment, the valve-controlled slow-discharge cosmetic container has a limiting groove 11 at the top of the base 1.
[0082] The fixing ring 21 of the material bag 2 is provided with an outwardly extending first protrusion 211. The first protrusion 211 of the fixing ring 21 is embedded in the limiting groove 11 of the base 1 and abuts against the shoulder of the limiting groove 11, making the material bag 2 more stable on the base 1.
[0083] Furthermore, in this embodiment, the upper end of the fixing ring 21 of the material bag 2 of the valve-controlled slow-discharge cosmetic container is provided with a second protrusion 212.
[0084] The inner wall of the side wall portion 51 of the panel 5 is provided with a plurality of snap-fit grooves 511. The snap-fit grooves 511 of the side wall portion 51 are engaged with the second protrusion 212 of the fixing ring 21, so that the panel 5 and the fixing ring 21 are detachably fastened together, which facilitates the connection and fixation of the panel 5 and the material bag 2.
[0085] In this invention, unless otherwise explicitly specified and limited, the first feature being "on" or "under" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium.
[0086] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "under," and "beneath" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0087] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A valve-controlled slow-discharge cosmetic container, characterized in that, include: Base, material bag, pump core seat, pump core, panel, valve body, and outer cover; The material bag includes: a rigid fixing ring and a soft rubber bag, wherein the fixing ring is disposed at the top of the soft rubber bag and is fastened to the base; The pump core seat covers the soft plastic bag, thus sealing the soft plastic bag; The pump core is mounted on the pump core seat and extends into the soft plastic bag; The panel is a single piece, including: a side wall, a top cover, and a pressure plate. The side wall and the pressure plate are made of hard plastic, and the top cover is made of soft plastic. The sidewall portion is fastened to the fixing ring and abuts against the pump core seat; The top cover is provided with a discharge hole; The outer diameter of the pressure plate is smaller than the outer diameter of the top cover, and it is disposed on the top cover. The pressure plate is provided with a discharge sleeve that communicates with the discharge hole. The discharge sleeve is fastened to the pump core and is used to drive the pump core to move up and down. The inner wall of the discharge sleeve is provided with a plurality of protrusions at intervals, and the protrusions are provided with snap-fit protrusions; The valve body is made of elastic material and is equipped with a sealing protrusion and a snap-fit groove. The snap-fit groove is used for the snap-fit protrusion to be inserted, the bottom surface of the sealing protrusion is conical, and the outer thickness of the sealing protrusion is less than the inner thickness. The valve body passes through the discharge hole and extends into the discharge sleeve. The sealing ring is embedded in the discharge hole and abuts against the discharge sleeve. A fluid channel is formed between the valve body and the discharge sleeve. The valve body is used to block the discharge hole. When the top cover is pressed, the valve body moves up and down with the top cover to open the discharge hole. The outer cover is fastened to the side wall portion to cover the panel.
2. The valve-controlled slow-discharge cosmetic container according to claim 1, characterized in that, The top end face of the soft plastic bag is flat; The pump core seat is provided with a limiting step, and the shoulder of the limiting step is provided with a sealing protrusion ring. The small end of the limiting step extends into the soft rubber bag, and the sealing protrusion ring is pressed into the top end face to form an interference fit.
3. The valve-controlled slow-discharge cosmetic container according to claim 1, characterized in that, The top cover is provided with a material-stopping protrusion.
4. The valve-controlled slow-discharge cosmetic container according to claim 3, characterized in that, The top cover is a concave arc shape inside the retaining ring.
5. The valve-controlled slow-discharge cosmetic container according to claim 1, characterized in that, The base is provided with a limiting groove; The fixing ring is provided with a first protrusion, which is embedded in the limiting groove and abuts against the shoulder of the limiting groove.
6. The valve-controlled slow-discharge cosmetic container according to claim 1, characterized in that, The fixing ring is provided with a second convex ring; The inner wall of the side wall is provided with multiple bayonet grooves for the second convex ring to be inserted.
Citation Information
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