Replaceable dispensing device

Abstract

A replaceable dispensing device, comprising: a replaceable assembly comprising a liquid storage container, wherein a first opening is formed in a first end of the liquid storage container, a sealing member used for sealing the first opening is arranged at the first opening, the sealing member comprises a first sheath part and a flow guide part connected to the first sheath part, the flow guide part comprises a plurality of flow guide flaps, the plurality of flow guide flaps are connected to each other to form a seal, a circle of thin-wall area is arranged at the connection between the first sheath part and the flow guide part, and the wall thickness of the thin-wall area is less than the wall thicknesses of the first sheath part and the flow guide flaps; and a dispensing mechanism comprising a puncture member used for puncturing the flow guide part. According to the device, the liquid storage container can be replaced safely and conveniently, the seal is released only when the liquid storage container is assembled on the dispensing mechanism, preventing material liquid from dumping and overflow. Additionally, the device can effectively reduce the risk of accidental cracking of the flow guide part by means of deformation buffering of the thin-wall area.

Description

A replaceable dispensing device Technical Field

[0001] The present invention relates to the technical field of daily chemical product packaging containers, and in particular to a replaceable dispensing device. Background Art

[0002] A dispensing device is a device used for dispensing and releasing liquids. It typically includes a liquid reservoir and a dispensing assembly. Pumps and valves are common examples of dispensing assemblies. Due to the long service life of dispensing assemblies, the reservoir is typically designed to be removable and replaceable. When the liquid is used up, the empty reservoir can be removed and a fresh, fully filled reservoir can be reassembled onto the dispensing assembly for continued use.

[0003] In the prior art, replacement liquid reservoir assemblies typically have a seal (such as a screw cap or sealant) at the opening. To replace a liquid reservoir assembly, the seal must be removed before the reservoir assembly and dispenser assembly are assembled. Removing the seal exposes the reservoir assembly's opening, making it prone to tipping or even overturning during assembly. This not only wastes or contaminates the liquid, but also can corrode metal components such as springs in the dispenser mechanism.

[0004] In addition, during transportation or accidental dropping, especially when encountering "violent express delivery", the seal at the opening of the liquid storage component is easily damaged due to the great impact force, causing unnecessary losses to merchants, consumers or couriers.

[0005] Summary of the Invention

[0006] In view of the above-mentioned defects of the prior art, the present invention provides a replaceable dispensing device, comprising:

[0007] A replaceable component includes a liquid storage container, wherein the liquid storage container has a first opening at a first end thereof, and a sealing member is provided at the first opening for sealing the first opening, the sealing member including a first sheath portion and a guide portion connected to the first sheath portion, the guide portion including a plurality of guide flaps, the plurality of guide flaps being connected to each other for sealing, a thin-walled area being provided at the connection between the first sheath portion and the guide portion, the wall thickness of the thin-walled area being less than the wall thickness of the first sheath portion and the guide flaps;

[0008] The dispensing mechanism includes a puncture member, and the puncture member is used to puncture the guide portion.

[0009] Furthermore, the puncture member includes a second sheath portion and a puncture portion connected to the second sheath portion, and the lower end portion of the puncture portion is conical to facilitate puncturing the guide membrane.

[0010] Furthermore, the second sheath can be inserted into the first sheath. A sealing ring is provided on the inner wall of the upper portion of the first sheath, protruding toward the axis of the first sheath. During replacement and use, the sealing ring prevents liquid from overflowing between the first and second sheaths, thereby corroding the dispensing mechanism. Because the lower portion of the first sheath can be easily pulled and deformed during replacement, especially when puncturing the guide, the sealing ring is positioned on the upper portion of the first sheath to ensure a seal between the first and second sheaths.

[0011] Furthermore, the first sheath portion extends downward along the axial direction of the liquid storage container so that at least a portion of the first sheath portion is accommodated in the liquid storage container, and the first sheath portion is in airtight connection with the inner wall of the liquid storage container to reduce the risk of liquid overflowing from between the first sheath portion and the inner wall of the liquid storage container, thereby protecting the dispensing mechanism.

[0012] Furthermore, the first end of the liquid storage container is provided with a first annular edge, the upper portion of the first sheath is provided with a second annular edge protruding away from the axis of the first sheath, and the outer edge of the second annular edge is provided with a downwardly folded buckle edge. The second annular edge is pressed and buckled above the first annular edge so that the buckle edge snaps into the outer edge of the first annular edge, thereby securing the sealing member to the first opening of the liquid storage container. In addition, the second annular edge further prevents liquid from overflowing from between the first sheath and the inner wall of the liquid storage container, thereby improving the sealing performance.

[0013] Furthermore, the replaceable component also includes a first shoulder sleeve, which is arranged on the outside of the first opening of the liquid storage container. The first shoulder sleeve is provided with a third annular edge, and the third annular edge is pressed above the second annular edge to further fix the seal at the first opening.

[0014] Furthermore, the dispensing mechanism also includes a second shoulder sleeve, a pump body that can be combined with the second shoulder sleeve, and an elastic mechanism arranged on the outside of the pump body. The second shoulder sleeve is detachably connected to the upper part of the liquid storage container, the puncture member is connected to the inner wall of the second shoulder sleeve and extends downward along the axial direction of the second shoulder sleeve. At least a portion of the pump body can be accommodated in the liquid storage container, and the dispensing mechanism is used to discharge the contents of the liquid storage container.

[0015] Furthermore, the seams between the guide flaps form a tearing zone, and the wall thickness of the tearing zone is smaller than the wall thickness of the guide flaps.

[0016] Furthermore, the outer surface of the guide flap is provided with reinforcing ribs protruding outward along the outer surface of the guide flap, and the reinforcing ribs are used to increase the rigidity of the guide flap and reduce the risk of accidental tearing of the tearing zone due to excessive deformation of the guide flap when it is subjected to unexpected impact forces such as collision.

[0017] Furthermore, a crack-stop rib is provided at the connection between the tearing zone and the thin-walled zone, the width of the crack-stop rib is greater than the width of the tearing zone, the wall thickness of the crack-stop rib is greater than the wall thickness of the tearing zone and the thin-walled zone, and the crack-stop rib is used to prevent the thin-walled zone from being torn.

[0018] Furthermore, the wall thickness of the thin-walled area is less than or equal to two-thirds of the wall thickness of the first sheath portion, so as to ensure that the thin-walled area can be deformed first to serve as a buffer when the guide portion is impacted.

[0019] Furthermore, the number of the guide flaps is n, 3≤n≤5, so as to simultaneously meet the requirements that the guide flaps can be opened radially when the guide portion is punctured and the tearing areas between the guide flaps can be fully torn.

[0020] Beneficial effects of the present invention:

[0021] 1. This device can be safely replaced without removing the seal first. The seal can be automatically released when the liquid storage container is assembled to the predetermined position. It is easy to operate and can effectively prevent the dumping and leakage of liquid during the replacement process. At the same time, it can effectively protect the parts in the dispensing mechanism from being corroded or contaminated by the leaked liquid.

[0022] 2. This device effectively reduces the risk of accidental seal failure on liquid storage containers during transportation or use, thereby increasing the reliability of the seal. This device incorporates a thin-walled area at the junction of the seal's flow guide and the first sheath. When the liquid storage container is subjected to external forces such as shock or a drop, the thin-walled area deforms first, acting as a buffer, effectively reducing the risk of accidental cracking of the flow guide.

[0023] 3. This device has a simple structure, stable function, and good sealing performance, and can provide consumers with a better user experience.

[0024] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic structural diagram of a replaceable dispensing device in an embodiment of the present invention;

[0026] FIG2 is an exploded view of an alternative dispensing device according to an embodiment of the present invention;

[0027] FIG3 is a cross-sectional view of a structure of a replaceable component of a replaceable dispensing device according to an embodiment of the present invention;

[0028] FIG4 is a cross-sectional view of the structure of an alternative dispensing device according to an embodiment of the present invention;

[0029] 5 is a cross-sectional view of the structure of a second shoulder sleeve of a replaceable dispensing device according to an embodiment of the present invention;

[0030] FIG6 is a schematic structural diagram of a seal of a replaceable dispensing device according to an embodiment of the present invention;

[0031] FIG7 is a perspective view of a seal of a replaceable dispensing device according to an embodiment of the present invention;

[0032] FIG8 is a second perspective view of the seal of the replaceable dispensing device according to an embodiment of the present invention.

[0033] Description of Reference Numerals

[0034] 1-Liquid storage container; 11-First opening; 12-Seal; 121-First sheath portion; 1211-Second annular edge; 1212-Buckle edge; 122-Flow guide portion; 1221-Guide flap; 1222-Tearing area; 1223-Reinforcing ribs: 1223a-Edge reinforcing rib; 1223b-Middle reinforcing rib; 1224-Seal ring; 123-Thin-walled area; 1231-Crack-stopping rib; 13-First annular edge; 14-First shoulder; 141-Third annular edge;

[0035] 2-dispensing mechanism; 21-second shoulder sleeve; 22-pump body; 23-elastic mechanism; 24-nozzle; 25-puncture member; 251-second sheath part; 252-puncture part. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects of the invention easier to understand, the invention is further described below with reference to specific diagrams. However, the invention is not limited to the following implementation cases.

[0037] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0038] As shown in FIG. 1 and FIG. 2 , the present invention discloses a replaceable dispensing device, including a replaceable component and a dispensing mechanism 2 . The replaceable component includes a liquid storage container 1 and a first shoulder sleeve 14 .

[0039] As shown in Figure 3, the first end of the liquid storage container 1 has a first opening 11, and a sealing member 12 for sealing the first opening 11 is provided at the first opening 11. A first annular edge 13 is provided at the first end of the liquid storage container 1, and a first shoulder sleeve 14 is provided on the outer side of the first opening 11 of the liquid storage container 1.

[0040] As shown in Figures 3, 6, and 7, the seal 12 includes a first sheath portion 121 and a flow guide portion 122 connected to the first sheath portion 121. The first sheath portion 121 extends downward from the first opening 11 along the axial direction of the liquid storage container 1 so that at least a portion is contained within the interior of the liquid storage container 1. The first sheath portion 121 is in airtight contact with the inner wall of the liquid storage container 1 to reduce the risk of liquid spilling from between the first sheath portion 121 and the inner wall of the liquid storage container 1, thereby preventing the dispensing mechanism 2 from being corroded or contaminated by the spilled liquid. A second annular edge 1211 is provided at the upper portion of the first sheath portion 121, projecting away from the axis of the first sheath portion 121. A downwardly folded buckle edge 1212 is provided at the outer edge of the second annular edge 1211. The second annular edge 1211 is buckled onto the upper portion of the first annular edge 13 so that the buckle edge 1212 buckles against the outer edge of the first annular edge 13, thereby securing the seal 12 to the first opening 11 of the liquid storage container 1. In addition, the second annular edge 1211 can further prevent the liquid from overflowing from between the first sheath portion 121 and the inner wall of the liquid storage container 1, thereby improving the sealing performance.

[0041] As shown in Figures 3, 6, 7, and 8, the guide portion 122 includes guide flaps 1221, which are three to five in number. The guide flaps 1221 are connected to each other to form a seal. The number of guide flaps is required to simultaneously meet the requirements that the guide flaps 1221 can expand radially when punctured and that the connections between the guide flaps 1221 can be fully torn. The seams between the guide flaps 1221 form a tearing zone 1222, and the wall thickness of the tearing zone 1222 is less than that of the guide flaps 1221 to facilitate tearing. The outer surface of the guide flap 1221 is provided with a reinforcing rib 1223 protruding outward along the surface of the guide flap 1221 to increase the rigidity of the guide flap 1221 and reduce the risk of accidental tearing of the tearing zone 1222 due to excessive deformation of the guide flap 1221 when subjected to unexpected impact forces such as collisions.

[0042] A thin-walled area 123 is provided at the junction of the first sheath 121 and the guide flap 122. The thickness of the thin-walled area 123 is less than that of the first sheath 121 and the guide flap 1221, and is less than or equal to two-thirds of the thickness of the first sheath 121. This ensures that when the guide flap 122 is impacted, the thin-walled area 123 deforms first to act as a buffer. Furthermore, when the thin-walled area 123 is thinner, it is more susceptible to elastic deformation. A crack-stop rib 1231 is provided at the junction of the thin-walled area 123 and the tear zone 1222. The width of the crack-stop rib 1231 is greater than that of the tear zone 1222, and the wall thickness of the crack-stop rib 1231 is greater than that of the tear zone 1222 and the wall thickness of the thin-walled area 123, preventing the thin-walled area 123 from tearing.

[0043] In more detail, as shown in Figures 6 and 7, the guide portion 122 is conical and is composed of multiple (for example, three) guide flaps 1221 connected together by multiple (for example, three) tear zones 1222, which converge at the top of the cone. Each guide flap 1221 is generally in the shape of a curved triangle, corresponding to multiple equal divisions (for example, three equal divisions) of the cone. Each guide flap 1221 has an upper curved base connected to the thin-walled area 123, and two rupture edges connected to the other two guide flaps through two tear zones 1222 respectively. The two rupture edges form edge reinforcement ribs 1223a, which converge at the top of the cone. The guide flap 1221 also forms an intermediate reinforcement rib 1223b, which connects the two edge reinforcement ribs 1223a at the top of the cone and ends before the thin-walled area 123. The width of the intermediate reinforcement rib 1223b is greater than the width of the edge reinforcement rib 1223a. The edge reinforcement ribs 1223a of the rupture edge extend parallel to the edge reinforcement ribs 1223a of the adjacent guide flap 1221, and the two edge reinforcement ribs 1223a are connected by a tear zone 1222 or a seam (in the tear zone 1222). The thickness of the edge reinforcement ribs 1223a is much greater than the thickness of the tear zone 1222 or the thin-walled region 123. These edge reinforcement ribs 1223a not only prevent the guide flap 1221 from tearing, but also provide a feed path during the injection molding process to ensure proper molding of the tear zone 1222. In effect, the edge reinforcement ribs 1223a act as a buffer reservoir, capable of providing sufficient molten plastic material to the thin mold space corresponding to the tear zone 1222. This ensures consistent and continuous formation of the tear zone 1222. The edge reinforcement ribs 1223a of two adjacent guide flaps 1221 are connected by a common crack stop rib 1231, which can be located in the thin-walled region 123, thereby dividing the thin-walled region 123 into multiple (e.g., three) circular (annular) sections.

[0044] As shown in FIG. 3 , a third annular edge 141 is provided at the first shoulder sleeve 14 . The third annular edge 141 is pressed onto the second annular edge 1211 to further fix the sealing member 12 at the first opening 11 .

[0045] As shown in Figures 1 and 4, the dispensing mechanism 2 is used to discharge the contents of the liquid storage container 1, and includes a second shoulder sleeve 21, a pump body 22 connectable to the second shoulder sleeve 21, an elastic mechanism 23 sleeved on the outside of the pump body 22, and a nozzle 24 located above the second shoulder sleeve 21. The elastic mechanism 23 acts between the first shoulder sleeve 14 and the second shoulder sleeve 21.

[0046] As shown in Figures 2, 4, and 5, the second shoulder sleeve 21 is connected to the upper portion of the liquid storage container 1. A piercing member 25 is housed within the second shoulder sleeve 22. The piercing member 25 comprises a second sheath portion 251 and a piercing portion 252 connected thereto. The lower end of the piercing portion 252 is tapered to facilitate piercing the diversion portion 122. The second sheath portion 251 is insertable into the first sheath portion 121. A sealing ring 1224 is provided on the inner wall of the upper portion of the first sheath portion 121, protruding toward the axis of the first sheath portion 121. During replacement and use, the sealing ring 1224 prevents liquid from overflowing between the first and second sheath portions 121, 251, and potentially corroding the dispensing mechanism. Because the lower portion of the first sheath portion 121 is easily deformed during replacement, especially when piercing the diversion portion 122, the sealing ring 1224 is positioned on the upper portion of the first sheath portion 121 to ensure a seal between the first and second sheath portions 121, 251.

[0047] The technical solution described in the above embodiment can be replaced and used as follows:

[0048] When replacement is required, the operator uses an empty liquid storage container 1 or the second shoulder sleeve 21 to remove the replaceable component, and then assembles the replaceable component consisting of the new liquid storage container 1 and the first shoulder sleeve 14 to the distribution mechanism 2. When assembled to the predetermined position, the puncture portion 252 of the puncture member 25 pierces the guide portion 122, causing the tearing area 1222 between the guide flaps 1221 to tear, and the guide flaps 1221 to open outward, so that the seal 12 is released. At this time, the replacement is completed and the distribution device of the present invention can be used normally.

[0049] When in use, the nozzle 24 is pressed to dispense the contents in the liquid storage container 1. When pressed, the elastic mechanism of the pump body 22 (which can be arranged inside or outside the pump body, not marked in the figure) is compressed, and a pressure difference is generated inside and outside the pump body 22. The one-way valve at the lower end of the pump body 22 opens, and the contents enter the pump body 22 and are pumped out through the nozzle 24 under the action of the pressure difference. When the hand is released, the elastic mechanism of the pump body 22 rebounds to reset the nozzle 24, and the one-way valve in the pump body 22 closes, and pumping stops.

[0050] When the device is subjected to external force due to shock or falling, the thin-walled area 123 will deform first due to its thin wall thickness and relatively low strength, thereby providing a buffer for the guide portion 122. Since the thin-walled area 123 is arranged in a circle at the connection between the first sheath portion 121 and the guide portion 122, even when subjected to a large impact force, the guide portion 122 is not prone to large local deformation and is more likely to move or deform as a whole, such as retracting into the first sheath portion 121 along the thin-walled area 123. In this way, the impact force that the guide portion 122 can bear is greatly increased, and the risk of accidental cracking and failure of the tearing zone 1222 due to excessive local deformation is also reduced.

[0051] Note that the flaps with edge stiffeners are connected together by a thin tear zone, which is itself a feature that can be protected independently of the thin wall area.

[0052] It should be noted that the above describes in detail the preferred embodiments of the present invention. It should be understood that numerous modifications and variations based on the concepts of the present invention can be made by those skilled in the art without inventive effort. Therefore, any technical solution that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

[0053] In the description of the present invention, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "socketing", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the conditions under which the present invention can be implemented, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

Claims

1. A replaceable dispensing device, characterized in that include: A replaceable component comprises a liquid storage container, wherein a first end of the liquid storage container has a first opening, a sealing member for sealing the first opening is provided at the first opening, the sealing member comprises a first sheath portion (121) and a flow guide portion (122) connected to the first sheath portion (121), the flow guide portion comprises a plurality of flow guide flaps (1221), the plurality of flow guide flaps (1221) are connected to each other to form a seal, a circle of thin-walled area (123) is provided at the connection between the first sheath portion (121) and the flow guide portion (122), and the wall thickness of the thin-walled area (123) is less than the wall thickness of the first sheath portion (121) and the flow guide flap (1221); A distribution mechanism, the distribution mechanism comprising a piercing member, the piercing member being used to pierce the guide portion (122).

2. The dispensing device according to claim 1, characterized in that The piercing member comprises a second sheath portion and a piercing portion connected to the second sheath portion, and the lower end portion of the piercing portion is in a cone shape to facilitate piercing the guide portion (122).

3. The dispensing device according to claim 2, characterized in that The second sheath part can be inserted into the first sheath part (121), and a sealing ring is provided on the inner wall of the upper part of the first sheath part (121) and protrudes toward the axial direction of the first sheath part.

4. The dispensing device according to claim 1, characterized in that The first sheath portion (121) extends downwardly along the axial direction of the liquid storage container so that at least a portion of the first sheath portion (121) is accommodated in the liquid storage container, and the first sheath portion (121) is in airtight connection with the liquid storage container.

5. The dispensing device according to claim 4, characterized in that A first annular edge is provided at the first end of the liquid storage container, a second annular edge protruding in a direction away from the axis of the first sheath portion (121) is provided at the upper portion of the first sheath portion (121), and a downwardly folded buckle edge is provided at the outer edge of the second annular edge. The second annular edge is pressed above the first annular edge so that the buckle edge is buckled into the outer edge side of the first annular edge, thereby fixing the seal at the first opening of the liquid storage container.

6. The dispensing device according to claim 5, characterized in that The replaceable component also includes a first shoulder sleeve, which is arranged on the outside of the first opening of the liquid storage container. The first shoulder sleeve has a third annular edge, and the third annular edge is pressed on top of the second annular edge to further fix the seal at the first opening.

7. The dispensing device according to claim 1, characterized in that The dispensing mechanism also includes a second shoulder sleeve, a pump body that can be combined with the second shoulder sleeve, and an elastic mechanism mounted on the outside of the pump body. The second shoulder sleeve is detachably connected to the upper part of the liquid storage container, the piercing member is connected to the inner wall of the second shoulder sleeve and extends downward along the axial direction of the second shoulder sleeve, at least a portion of the pump body can be accommodated in the liquid storage container, and the dispensing mechanism is used to discharge the contents of the liquid storage container.

8. The dispensing device according to claim 1, characterized in that The tear zone (1222) is formed by the seams between the guide flaps (1221), and the wall thickness of the tear zone (1222) is smaller than the wall thickness of the guide flaps (1221).

9. The dispensing device according to claim 8, characterized in that The outer surface of the guide flap (1221) is provided with a reinforcing rib (1223) protruding outward along the outer surface of the guide flap (1221), and the reinforcing rib (1223) is used to increase the rigidity of the guide flap (1221).

10. The fluid dispensing device according to claim 8, characterized in that: A crack-stopping rib (1231) is provided at the connection between the tear zone (1222) and the thin-walled zone (123); the width of the crack-stopping rib (1231) is greater than the width of the tear zone (1222); the wall thickness of the crack-stopping rib (1231) is greater than the wall thickness of the tear zone (1222) and the thin-walled zone (123); the crack-stopping rib (1231) is used to prevent the thin-walled zone (123) from being torn.

11. The dispensing device according to claim 1, characterized in that The wall thickness of the thin-walled area (123) is less than or equal to two-thirds of the wall thickness of the first sheath portion (121).

12. The dispensing device according to claim 1, characterized in that The number of the guide flaps (1221) is n, where n is greater than or equal to 3 and n is less than or equal to 5.

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