Distributor
By designing the sealing connection between the pump core assembly and the second reservoir in the dispenser and the sealing connection between the sealing piston and the second reservoir, a multi-channel sealing system is formed, which solves the problems of poor sealing of the double-storey bottle body and high pump core cost. , achieving efficient sealing and cost reduction effects.
Patent Information
- Application Number
- CN202411915117.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-02-14
AI Technical Summary
The existing double-storey bottles have poor sealing properties and high cost to use a specific pump core, so they cannot take into account both the sealing properties of the bin itself and the sealing properties between the bin and the bottle body.
A distributor is designed to form a sealing connection between the pump core assembly and the second reservoir through a sealing connection between the sealing piston and the second reservoir, and adopt multiple sealing measures on the upper and lower sides to form a complete closed-loop sealing system. At the same time, the common pump core assembly is used to achieve double-material mixing, reducing costs.
The second storage and its efficient sealing with the first storage are realized, reducing costs and improving the consumer's experience during use.
Smart Images

Figure CN119425996A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of dispensers, and in particular to a dispenser. Background Art
[0002] As consumers pay more and more attention to product quality and experience, the cosmetics, food and other industries have higher and higher requirements for product preservation and activity retention.
[0003] At present, double-compartment bottles are usually used in the market to protect against light or lock in freshness by adding an inner compartment to avoid weakening the activity of active substances in the aerobic ingredients and affecting the consumer experience. However, the existing double-compartment bottles cannot take into account the sealing of the silo itself and the sealing between the silo and the bottle at the same time, and a specific pump core is required to achieve mixing of the double-compartment materials, which is costly.
[0004] Therefore, there is an urgent need for a dispenser that can solve the above problems to improve the consumer experience when using it. Summary of the invention
[0005] The purpose of the present invention is to solve the technical problems of poor sealing of the existing double-compartment bottle and high cost of using a specific pump core. The present invention provides a dispenser with good sealing performance and can use a universal pump core to achieve dual-material mixing, thereby reducing costs and improving the consumer experience when using it.
[0006] To solve the above technical problems, an embodiment of the present invention discloses a dispenser, comprising: a first reservoir, extending along a first direction, having a first accommodating chamber for storing a first product; a second reservoir, extending along the first direction, having a second accommodating chamber for storing a second product different from the first product; a first end of the second reservoir is sealedly connected to the first end of the first reservoir, a first plug hole is provided at the first end of the second reservoir, and the first plug hole is communicated with the second accommodating chamber; a limiting member, fixedly arranged at the first end of the second reservoir; a pump assembly, comprising: a pump core assembly, the pump core assembly is inserted into the second accommodating chamber through the first plug hole along the first direction, and the pump core assembly is sealedly connected to the first end of the second reservoir along the second direction, the pump core assembly is configured to be able to move along the first direction relative to the first end of the second reservoir and the limiting member under the action of an external force, and the first direction and the second direction are connected. The two directions intersect; a sealing piston is connected to the pump core assembly and accommodated in the first accommodating chamber, the sealing piston is used to be sealed and connected to the second end of the second reservoir, and the sealing piston is configured to be able to move along the first direction under the drive of the pump core assembly; wherein the dispenser is configured to include a first state, a second state and a third state; in the first state, the pump core assembly is not pushed, and the first accommodating chamber and the second accommodating chamber are separated by the sealing piston; in the second state, the pump core assembly is pushed and drives the sealing piston to move along the first direction, so that the sealing piston is spaced apart from the second reservoir, so that the second product can enter the first accommodating chamber and form a mixture with the first product; in the third state, the pump core assembly is further pushed until it is connected to the limiter to limit the pump core assembly from driving the sealing piston to move along the first direction, and start the pump core assembly to dispense the mixture.
[0007] By adopting the above technical solution, on the one hand, the pump core assembly of the embodiment of the present application is inserted into the second accommodating cavity through the first plug hole, and is sealed and connected with the first end of the second reservoir along the second direction (i.e. radial direction). Compared with the sealing design of the prior art that uses an additional slidable piston as a seal of the second reservoir (e.g., the inner chamber), the sealing design of the embodiment of the present application that directly seals by combining the pump core assembly with the second reservoir has the advantages of simple structure, good sealing effect and high stability. In addition, the embodiment of the present application also forms a complete closed-loop sealing system by adopting upper and lower multi-pass sealing measures through the sealing connection between the sealing piston and the second reservoir, and the sealing connection between the first end of the second reservoir and the first end of the first reservoir, thereby improving the sealing effect of the second reservoir and between the second reservoir and the first reservoir.
[0008] On the other hand, the embodiment of the present application adopts the limiting design between the limiting member and the pump core assembly, so that when the consumer uses the dispenser of the embodiment of the present application, the pump core assembly can be linearly moved downward to connect with the limiting member by pressing to reach the limiting position, and the sealing piston connected to the pump core assembly is driven to move downward synchronously relative to the second end of the second reservoir, so that the first product in the second reservoir can be mixed with the second product in the first reservoir. Therefore, there is no need to select a pump core assembly with a special fixed design (for example, a pump inner ring that is limited by a threaded connection), and a universal pump core assembly can be used to achieve double-material mixing, so as to reduce costs and improve the consumer experience when using it.
[0009] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump assembly further comprises a pump outer ring, and along the first direction, the pump outer ring is connected to the first end of the first reservoir, the pump outer ring comprises a first shoulder located on the inner surface, and the second reservoir further comprises a first annular flange protruding from the outer surface of the second reservoir; along the first direction, the first shoulder and the first annular flange are arranged opposite to each other, the first annular flange is located between the first shoulder of the pump outer ring and the first end of the first reservoir, and is sealed and connected to the first end of the first storage portion along the first direction; a first sleeve is provided on the lower surface of the first annular flange and is spaced apart from the outer surface of the second reservoir along the second direction, and the first sleeve is interference-sealed and connected to the inner wall of the first reservoir along the second direction.
[0010] By adopting the above technical solution, the first shoulder of the pump outer ring of the embodiment of the present application is arranged opposite to the first annular flange, and the first annular flange is located between the first shoulder of the pump outer ring and the first end of the first reservoir, and the first sleeve is interference-sealed with the inner wall of the first reservoir, so that the second reservoir is fixed on the first reservoir and sealed with the first reservoir.
[0011] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the second reservoir further includes a first annular gasket, and along the first direction, the first annular gasket is located between the lower surface of the first annular flange and the first end of the first reservoir, so that the first annular flange is sealed and connected to the first end of the first reservoir along the first direction.
[0012] By adopting the above technical solution, the first annular gasket of the embodiment of the present application is located between the lower surface of the first annular flange and the first end of the first reservoir, so that the first annular flange is sealed and connected to the first end of the first reservoir, thereby improving the sealing effect between the second reservoir and the first reservoir.
[0013] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump assembly further comprises a pump outer ring, and along the first direction, the pump outer ring is connected to the first end of the first reservoir, the pump outer ring comprises a first shoulder located on the inner surface, and the second reservoir further comprises a second sleeve arranged on the outer surface of the second reservoir; along the second direction, the second sleeve is interference-sealed with the inner wall of the first reservoir, the inner end of the second sleeve is connected to the outer surface of the second reservoir, the outer end of the second sleeve is spaced apart from the first end of the second reservoir, and is provided with a second annular flange; along the first direction, the first shoulder and the second annular flange are arranged opposite to each other, the second annular flange is located between the first shoulder of the pump outer ring and the first end of the first reservoir, and is sealingly connected to the first end of the first storage portion along the first direction.
[0014] By adopting the above technical solution, the first shoulder of the pump outer ring of the embodiment of the present application is arranged opposite to the second annular flange, and the second annular flange is located between the first shoulder of the pump outer ring and the first end of the first reservoir, and the second sleeve is interference-sealed with the inner wall of the first reservoir, so that the second reservoir is fixed on the first reservoir and sealed with the first reservoir.
[0015] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the limit member includes a first mounting portion, the first end of the second reservoir includes a second mounting portion corresponding to the first mounting portion, the first mounting portion has a mounting space and a second socket corresponding to the first socket; wherein the first mounting portion is sealed and connected to the second mounting portion, and a portion of the second mounting portion is accommodated in the mounting space, and along the first direction, the pump core assembly is inserted into the second accommodating cavity through the second socket and the first socket in sequence.
[0016] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the first mounting portion includes a first annular groove, the inner side wall of the first annular groove extends downward from the bottom wall of the first annular groove and defines the second insertion hole, along the first direction, the pump core assembly passes through the second insertion hole, the inner side wall of the first annular groove, the bottom wall of the first annular groove and a portion of the inner wall of the limiting member jointly define the mounting space; the second mounting portion includes a second annular groove, the inner side wall of the second annular groove extends upward from the bottom wall of the second annular groove and defines the first insertion hole, a portion of the inner side wall of the second annular groove is accommodated in the mounting space and is sealed and connected to the inner wall of the limiting member.
[0017] By adopting the above-mentioned technical solution, in the embodiment of the present application, the inner side wall of the second annular groove is upwardly joined to the first annular groove along the first direction, so that the end of the inner side wall of the second annular groove is accommodated in the installation space and is sealedly connected to the inner wall of the limit member, thereby making the first end of the second reservoir sealedly connected to the limit member.
[0018] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a distributor, the limiting member also includes a second annular gasket corresponding to the first annular groove, the second annular gasket is accommodated in the installation space, and is located between the bottom wall of the first annular groove and the inner side wall of the second annular groove along the first direction, so that the bottom wall of the first annular groove and the inner side wall of the second annular groove are sealed and connected along the first direction.
[0019] By adopting the above technical solution, the second annular gasket of the embodiment of the present application is accommodated in the installation space and is located between the bottom wall of the first annular groove and the top surface of the inner wall of the second annular groove along the first direction, so that the first annular groove is sealed and connected with the second annular groove, thereby improving the sealing effect between the limit member and the first end of the second reservoir.
[0020] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump core assembly further includes: a pump core, which extends along the first direction and has an outlet and an inlet that are connected to each other, the inlet is connected to the first accommodating chamber, and the pump core is configured to be able to move relative to the limit member along the first direction under the action of an external force; a connecting member that passes through the first direction, and along the first direction, the inlet of the pump core extends into the connecting member and is connected to the connecting member, and the connecting member is configured to be able to move along the first direction under the drive of the pump core.
[0021] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump core is interference-sealed with the limit member along the second direction, and the first end of the second reservoir also includes a downwardly extending connecting portion, wherein the connecting portion is located in the second accommodating cavity, and the connecting portion has a free end inclined inwardly along a third direction, and the third direction surrounds the first direction; wherein, in the first state and the second state, the free end of the connecting portion is interference-sealed with the connecting member along the second direction; and in the third state, the free end of the connecting portion is spaced apart from the pump core along the second direction.
[0022] By adopting the above technical solution, when the dispenser of the embodiment of the present application is in the first state and the second state, along the first direction, the connecting piece passes through the first plug hole set at the first end of the second reservoir and extends into the second accommodating cavity, and is interference-sealed with the free end of the connecting part to improve the sealing effect between the connecting piece and the first end of the second reservoir.
[0023] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the first end of the second reservoir also includes a connecting portion extending downward, the connecting portion is located in the second accommodating cavity, and the connecting portion has a free end inclined inwardly along a third direction, and the third direction surrounds the first direction; wherein, in the first state, the second state and the third state, the free end of the connecting portion is interference-sealed with the connecting member along the second direction.
[0024] By adopting the above-mentioned technical solution, along the first direction, the connecting piece passes through the first socket provided at the first end of the second reservoir and extends into the second accommodating cavity, and is always (for example, when the dispenser of the embodiment of the present application is in the first state, the second state and the third state) interference-sealedly connected with the free end of the connecting part to improve the sealing effect between the connecting piece and the first end of the second reservoir.
[0025] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the sealing piston comprises: a piston body; an inner groove, which is provided in the piston body and extends along the third direction, the inner side wall of the inner groove extends downward along the first direction to define a connecting channel, the connecting channel passes through the piston body, the first end of the connecting member is accommodated in the inner groove, and is sleeved on the inner side wall of the inner groove, so that the connecting member is communicated with the first accommodating chamber through the connecting channel, and the inner groove is configured to be able to drive the piston body to move along the first direction under the drive of the connecting member; an outer groove, which is provided in the piston body and surrounds the inner groove, and the outer groove is spaced apart from the inner groove along the second direction; wherein, in the first state, the second end of the second reservoir is accommodated in the outer groove and is interference-sealed with the inner side wall of the outer groove along the second direction; in the second state and the third state, the second end of the second reservoir is spaced apart from the outer groove, so that the first accommodating chamber is communicated with the second accommodating chamber.
[0026] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump core assembly further includes: a pump inner ring, fixedly mounted on the pump core, the pump inner ring being configured to be able to follow the pump core to move along the first direction relative to the limit member, the outer wall of the limit member being provided with a first clamping portion, and the pump inner ring being provided with a second clamping portion corresponding to the first clamping portion; in the first state and the second state, along the first direction, the first clamping portion and the second clamping portion are spaced apart; in the third state, the first clamping portion is clamped with the second clamping portion to limit the movement of the pump inner ring along the first direction relative to the limit member.
[0027] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump inner ring includes a plurality of lower legs extending downward along the first direction, the inner wall of each of the lower legs is provided with the second clamping portion, and the pump inner ring also includes a second shoulder located on the inner surface, and the second shoulder is arranged opposite to the top surface of the limit member along the first direction; in the first state and the second state, along the first direction, the second shoulder of the pump inner ring is spaced apart from the top surface of the limit member, and the second clamping portion of each of the lower legs is spaced apart from the first clamping portion; in the third state, the second shoulder of each of the lower legs abuts against the top surface of the limit member, and the second clamping portion of each of the lower legs is clamped with the first clamping portion.
[0028] By adopting the above-mentioned technical solution, the embodiment of the present application engages the first clamping portion of the limit member with the second clamping portion of each lower leg, so that the limit member is engaged with the inner ring of the pump to limit the movement of the inner ring of the pump along the first direction relative to the limit member, thereby limiting the movement of the pump core assembly and the sealing piston along the first direction relative to the second reservoir, thereby achieving the limitation of the pump core assembly and the sealing piston.
[0029] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the first clamping portion includes a first external buckle rib, the second clamping portion includes a first internal buckle rib, the first external buckle rib and the first internal buckle rib both extend along a third direction, and the third direction surrounds the first direction.
[0030] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump outer ring is arranged to surround the pump inner ring, the inner wall of the pump outer ring is provided with a third clamping portion, and the outer wall of the pump inner ring is provided with a fourth clamping portion corresponding to the third clamping portion; in the first state and the second state, along the first direction, the third clamping portion and the fourth clamping portion are spaced apart; in the third state, the third clamping portion is clamped with the fourth clamping portion to limit the movement of the pump inner ring relative to the pump outer ring along the first direction.
[0031] By adopting the above technical solution, the embodiment of the present application utilizes the second clamping portion of the inner ring of the pump and the first clamping portion of the limiting member for clamping and limiting, and also utilizes the third clamping portion of the outer ring of the pump and the fourth clamping portion of the inner ring of the pump for clamping and limiting, thereby further strengthening the anti-return design and realizing double protection against retraction, thereby preventing the pump core assembly and the head assembly from accidentally returning.
[0032] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the third clamping portion includes a second inner buckle rib, the fourth clamping portion includes a second outer buckle rib, the second inner buckle rib and the second outer buckle rib both extend along a third direction, and the third direction surrounds the first direction.
[0033] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, wherein the pump assembly also includes a head assembly connected to the first end of the pump core assembly, and the head assembly is configured to drive the pump core assembly to move along the first direction under the push of an external force; the head assembly includes a discharge port and a discharge channel, the first end of the discharge channel is connected to the discharge port, and the second end of the discharge channel is connected to the outlet of the pump core, so that the discharge port is connected to the outlet.
[0034] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a dispenser, further comprising an elastic member, which is sleeved on the outside of the pump core. Along the first direction, the elastic member is located between the pump inner ring and the limit member to elastically connect the pump inner ring to the limit member. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1A A perspective view showing a dispenser according to a first embodiment of the present invention;
[0036] Figure 1B A cross-sectional view showing a dispenser according to a first embodiment of the present invention;
[0037] Figure 2A A perspective view showing a stopper, a pump assembly and a second reservoir of a dispenser according to a first embodiment of the present invention;
[0038] Figure 2B A cross-sectional view showing a stopper, a pump assembly and a second reservoir of a dispenser according to a first embodiment of the present invention;
[0039] Figure 3A A three-dimensional diagram showing a stopper, a pump core assembly, a sealing piston and a second reservoir of a dispenser according to a first embodiment of the present invention;
[0040] Figure 3BA cross-sectional view showing a stopper, a pump core assembly, a sealing piston and a second reservoir of a dispenser according to a first embodiment of the present invention;
[0041] Figure 4A A perspective view showing the inner ring of the pump of the dispenser according to the first embodiment of the present invention;
[0042] Figure 4B A cross-sectional view showing the inner ring of the pump of the dispenser according to the first embodiment of the present invention;
[0043] Figure 5A A three-dimensional diagram showing a stopper of a dispenser according to a first embodiment of the present invention;
[0044] Figure 5B A cross-sectional view showing a stopper and a second reservoir of a dispenser according to a first embodiment of the present invention;
[0045] Figure 6 A perspective view showing a sealing piston of a dispenser according to a first embodiment of the present invention;
[0046] Figure 7 A cross-sectional view showing the outer ring of the pump of the dispenser according to the first embodiment of the present invention;
[0047] Figure 8 Show Figure 1B A partial enlarged view of the middle A area;
[0048] Fig. 9 A cross-sectional view showing a cap assembly of a dispenser according to a first embodiment of the present invention;
[0049] Fig. 10A A cross-sectional view showing a dispenser according to a second embodiment of the present invention;
[0050] Fig. 10B Show Fig. 10A A partial enlarged view of area B.
[0051] Description of reference numerals:
[0052] 1. Distributor;
[0053] 10. Bottle body; 101. First end of the bottle body; 102. Second end of the bottle body; 103. First accommodating cavity; 104. Inner wall of the bottle body; 11. Bottom support; 12. Vacuum piston;
[0054] 20, inner bin; 201, first end of inner bin; 2011, second annular groove; 20111, inner side wall of second annular groove; 20112, bottom wall of second annular groove; 2012, first plug hole; 2013, connecting portion; 20131 free end; 202, second end of inner bin; 203, second accommodating cavity; 204, outer surface of inner bin; 21, first annular flange; 22, first sleeve; 23, first annular gasket; 24, second sleeve; 2401, outer end of second sleeve; 2402, inner end of second sleeve; 2403, middle portion of second sleeve; 25, second annular flange;
[0055] 30. Pump assembly;
[0056] 31. Pump core assembly; 3101. First end of the pump core assembly; 3102. Second end of the pump core assembly; 311. Pump core; 3111. Outlet; 3112. Inlet; 312. Pump inner ring; 3121. Lower leg; 3122. Second shoulder; 31211. Second clamping portion; 3123. Fourth clamping portion; 313. Connector; 3131. First end of the connector;
[0057] 32. Press head assembly; 321. Discharge port; 322. Discharge channel; 3221. First end of the discharge channel; 3222. Second end of the discharge channel;
[0058] 33, sealing piston; 331, piston body; 332, inner groove; 3321, inner side wall of the inner groove; 3322, outer side wall of the inner groove; 3323, supporting rib; 333, outer groove; 3331, inner side wall of the outer groove; 334, connecting channel; 335, annular edge;
[0059] 34, pump outer ring; 3401, first end of the pump outer ring; 341, opening; 342, inner wall of the pump outer ring; 343, third clamping portion; 344, first shoulder; 345, limiting rib;
[0060] 40. stopper; 401. top surface of the stopper; 41. first clamping portion; 42. first annular groove; 421. bottom wall of the first annular groove; 422. inner side wall of the first annular groove; 43. second insertion hole; 44. installation space; 45. second annular gasket;
[0061] 50. Elastic parts;
[0062] 60, cover assembly; 61, outer cover; 611, top sheet; 62, middle cover; 63, inner cover; 631, accommodation space; 632, vertical convex ribs;
[0063] 70. Decorative circle. DETAILED DESCRIPTION
[0064] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.
[0065] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0066] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0067] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.
[0068] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.
[0069] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0070] refer to Figure 1A and Figure 1BThe present application provides a dispenser 1. The dispenser 1 includes a first reservoir and a second reservoir. The first reservoir has a first accommodating cavity 103 for storing a first product (not shown in the figure), and the second reservoir has a second accommodating cavity 203 for storing a second product different from the first product (not shown in the figure).
[0071] Exemplarily, the dispenser 1 of the embodiment of the present application is applied to the field of cosmetics. Furthermore, the first reservoir is the bottle body 10, the second reservoir is the inner bin 20, and the first product and the second product are different types of fluids or powders. It can be understood that the embodiment of the present application does not limit the application field of the dispenser 1, the structure of the first reservoir and the second reservoir, and the types of the first product and the second product. For example, the dispenser 1 of the embodiment of the present application can also be applied to the field of fast-moving consumer goods such as food, the first reservoir and the second reservoir can also be inner bins, and the first product and the second product can also be different types of fluids and fluids, or different types of powders and powders, or different types of fluids and powders.
[0072] For the convenience of explanation, the following description is based on an example in which the first storage container is a bottle body and the second storage container is an inner bin.
[0073] Continue to refer Figure 1A and Figure 1B The dispenser 1 of the embodiment of the present application further includes a pump assembly 30 , a limiting member 40 , an elastic member 50 , a cover assembly 60 and a decorative ring 70 .
[0074] Specifically, Figure 1A and Figure 1B As shown, the pump assembly 30 includes a pump core assembly 31, a head assembly 32, a sealing piston 33 and a pump outer ring 34. The dispenser 1 has a housing formed by the pump outer ring 34 and the bottle body 10. For example, as Figure 2A As shown, the first end 3401 of the outer ring of the pump is provided with an opening 341. Figure 1A and Figure 1B The push head assembly 32 extends upward and passes through the opening 341 to the outside of the pump outer ring 34. The push head assembly 32 is configured to be able to move relative to the pump outer ring 34 along the first direction Z under the push of an external force (for example, the pressing force applied by the consumer on the push head assembly 32), and the push head assembly 32 includes a discharge port 321 for dispensing a product (for example, a mixture of a first product and a second product). The cover assembly 60 is sleeved on the pump outer ring 34 to protect the discharge port 321 and prevent the dispenser 1 from being accidentally actuated to affect the consumer's experience.
[0075] refer to Figure 2B Combined with Figure 1BThe first end 201 of the inner bin is sealed and connected to the first end 101 of the bottle body, and the first end 201 of the inner bin is provided with a first plug hole 2012. The first end 3101 of the pump core assembly passes through the first end 201 of the inner bin and the stopper 40 in sequence along the first direction Z and extends upward to the bottom of the head assembly 32. The pump core assembly 31 is respectively connected to the first end 201 of the inner bin and the stopper 40 along the second direction (such as Figure 2B The inner warehouse 20 is sealed and connected with the inner warehouse 20 (as shown in the X direction), thereby ensuring the sealing of the upper side of the inner warehouse 20. In addition, the second end 3102 of the pump core assembly is inserted into the first plug hole 2012 and extends downward into the second accommodating chamber 203. The sealing piston 33 is connected to the second end 3102 of the pump core assembly, and the sealing piston 33 is sealingly engaged with the second end 202 of the inner warehouse, thereby ensuring the sealing of the lower side of the inner warehouse 20. In other words, the sealing piston 33 and the inner warehouse 20 jointly define a second accommodating chamber 203 for storing the second product, so that the second product is surrounded by the inner warehouse 20, the limiter 40 and the sealing piston 33. Compared with the sealing design in the prior art that uses a slidable piston as the inner warehouse seal, the sealing design of the embodiment of the present application that directly seals by combining the pump core assembly 31 with the inner warehouse 20 has the advantages of simple structure, good sealing effect and high stability.
[0076] For example, Figure 1B As shown, the bottle body 10 of the embodiment of the present application further includes a base 11 and a slidable vacuum piston 12. Specifically, the base 11 is connected to the second end 102 of the bottle body, and the base 11 and the inner wall 104 of the bottle body jointly define a first accommodating cavity 103. The vacuum piston 12 is accommodated in the first accommodating cavity 103 and is connected to the inner wall 104 of the bottle body in an interference seal along the second direction X, so that the first product is enclosed between the inner wall 104 of the bottle body, the inner bin 20, the sealing piston 33 and the slidable vacuum piston 12.
[0077] Continue to refer Figure 1B Combined with Figure 2B The pump core assembly 31 is configured to be pushed by the push head assembly 32 to move relative to the inner bin 20 and the stopper 40 along the first direction Z, and the sealing piston 33 is configured to be driven by the pump core assembly 31 to move relative to the inner bin 20 along the first direction Z. In addition, the first end 201 of the inner bin is fixedly disposed on the first end 101 of the bottle body 10 and is connected to the first end 101 of the bottle body in an interference seal along the second direction X, and part of the inner bin 20 extends into the bottle body 10. In other words, the second end 202 of the inner bin is located in the bottle body 10, and the inner bin 20 and the bottle body 10 are separated by the sealing piston 33. In the embodiment of the present application, the inner bin 20 and the bottle body 10 can be connected to each other by moving the sealing piston 33.
[0078] Thus, the dispenser 1 of the embodiment of the present application utilizes the pump core assembly 31, the limit member 40 and the sealing piston 33 to be sealedly connected to the upper and lower sides of the inner warehouse 20 (i.e., the first end 201 of the inner warehouse and the second end 202 of the inner warehouse), respectively, and adopts upper and lower multi-pass sealing measures to form a complete closed-loop sealing system, thereby ensuring the sealing of the inner warehouse 20 itself and between the inner warehouse 20 and the bottle body 10 of the embodiment of the present application, so as to achieve an efficient sealing effect.
[0079] In addition, the pump core assembly 31 of the embodiment of the present application can move along the first direction Z under the drive of the head assembly 32, so that the dispenser 1 of the embodiment of the present application includes different states based on the movement of the pump core assembly 31 relative to the inner chamber 20 along the first direction Z, namely the first state, the second state and the third state.
[0080] Specifically, Figure 1B As shown, in the first state, the head assembly 32 is not pushed, that is, the head assembly 32 is not subjected to external force, the pump core assembly 31 is stationary relative to the inner chamber 20, and the sealing piston 33 is sealed with the second end 202 of the inner chamber, so that the bottle body 10 and the inner chamber 20 are separated by the sealing piston 33. At this time, the first product in the first accommodating chamber 103 and the second product in the second accommodating chamber 203 do not form a mixture.
[0081] In the second state, the push head assembly 32 is pushed, that is, the push head assembly 32 is subjected to an external force (for example, a downward pressing force in the first direction Z applied by the consumer) to drive the pump core assembly 31 to move downward in the first direction Z relative to the inner bin 20, and drive the sealing piston 33 to move downward in the first direction Z, so that the sealing piston 33 is spaced apart from the second end 202 of the inner bin, the inner bin 20 is connected to the bottle body 10, and the second product in the second accommodating chamber 203 can enter the first accommodating chamber 103 by gravity and form a mixture with the first product in the first accommodating chamber 103. Exemplarily, in the second state, the pump core 311 of the pump core assembly 31 is not yet started, in other words, the pump core 311 is not yet actuated.
[0082] Further, in the third state, the push head assembly 32 is further pushed until the pump core assembly 31 is connected to the stopper 40, that is, the push head assembly 32 is subjected to external force to continue to drive the pump core assembly 31 to move downward relative to the inner chamber 20 along the first direction Z. Since the stopper 40 of the embodiment of the present application is sleeved on the pump core assembly 31, and the stopper 40 is fixedly and sealedly arranged at the first end 201 of the inner chamber, when the pump core assembly 31 moves downward relative to the inner chamber 20 and the stopper 40 until the pump core assembly 31 is connected to the stopper 40, the stopper 40 limits the pump core assembly 31 to continue to move downward along the first direction Z, and limits the sealing piston 33 to move along the first direction Z. At this time, when the consumer continues to apply external force to the push head assembly 32, since the movement of the pump core assembly 31 in the first direction Z is limited, the external force applied by the consumer can act on the pump core 311 of the pump core assembly 31, thereby actuating the pump core 311, so that the pump core assembly 31 starts and distributes the mixture.
[0083] Therefore, on the one hand, the dispenser 1 of the embodiment of the present application utilizes the sealing connection between the stopper 40, the sealing piston 33 and the pump core assembly 31 and the inner bin 20, as well as the sealing connection between the inner bin 20 and the bottle body 10, and adopts upper and lower multi-pass sealing measures to form a complete closed-loop sealing system, thereby achieving the sealing between the inner bin 20 and the inner bin 20 and the bottle body 10. On the other hand, through the limiting design between the stopper 40 and the pump core assembly 31, when the consumer uses the dispenser 1 of the embodiment of the present application, the pump core assembly 31 can be linearly moved downward to connect with the stopper 40 and reach the limiting position by pressing the head assembly 32, and the sealing piston 33 connected to the pump core assembly 31 is driven to move downward synchronously relative to the inner bin 20, so that the first product in the inner bin 20 can be mixed with the second product in the bottle body 10.
[0084] The structure and working principle of the dispenser 1 of the embodiment of the present application will be described below with reference to the accompanying drawings.
[0085] refer to Figure 3A and Figure 3B The pump core assembly 31 of the dispenser 1 of the embodiment of the present application includes a pump core 311 and a pump inner ring 312 .
[0086] Specifically, Figure 3A and Figure 3B As shown, the pump core 311 moves in a first direction (eg Figure 3A and Figure 3B The pump core 311 extends in the first direction Z (as shown in the Z direction), and the pump core 311 has an inlet 3112 connected to the first accommodating chamber 103 and an outlet 3111 connected to the discharge port 321 of the head assembly 32. The pump inner ring 312 is fixedly sleeved on the pump core 311. In addition, the pump core 311 is configured to be able to move relative to the limiter 40 along the first direction Z under the drive of the head assembly 32. For example, as Figure 3BAs shown, the pump inner ring 312 is provided with a hole that passes through along the first direction Z, so that the pump core 311 can pass through the hole and connect with the pump inner ring 312. The inner surface of the pump inner ring 312 is provided with a convex portion, and the outer surface of the pump core 311 is provided with a concave portion matched with the convex portion. Along the first direction Z, the lower surface of the convex portion abuts against the lower side surface of the concave portion, and the upper surface of the convex portion abuts against the lower side surface of the concave portion, so that the pump inner ring 312 and the pump core 311 are connected through the concave-convex matching, so that the pump inner ring 312 can synchronously follow the pump core 311 to move along the first direction Z relative to the limit member 40.
[0087] In addition, continue to refer to Figure 3B Combined with Figure 4A and Figure 4B In the embodiment of the present application, the outer wall of the position-limiting member 40 is provided with a first clamping portion 41. Figure 4A As shown, the lower surface of the pump inner ring 312 of the embodiment of the present application further includes four lower legs 3121 extending downward along the first direction Z, and the inner wall of each lower leg 3121 is provided with a second clamping portion 31211. Figure 4B As shown, the pump inner ring 312 further includes a second shoulder 3122 located on the inner surface. Along the first direction Z, the second shoulder 3122 is arranged opposite to the top surface 401 of the limiting member.
[0088] Thus, when the dispenser 1 of the embodiment of the present application is in the first state and the second state, along the first direction Z, the second shoulder 3122 of the pump inner ring 312 is spaced from the top surface 401 of the stopper 40, and the first clamping portion 41 of the stopper 40 is spaced from the second clamping portion 31211 of each lower leg 3121. When the dispenser 1 of the embodiment of the present application is in the third state, the second shoulder 3122 of the pump inner ring 312 abuts against the top surface 401 of the stopper 40. That is to say, the distance of the sealing piston 33 of the embodiment of the present application moving relative to the second end 202 of the inner chamber to the above-mentioned limit position is limited by the stopper 40.
[0089] In addition, the first clamping portion 41 of the limit member 40 is clamped with the second clamping portion 31211 of each lower leg 3121, so that the limit member 40 is clamped with the pump inner ring 312 to limit the movement of the pump inner ring 312 relative to the limit member 40 along the first direction Z, thereby limiting the movement of the pump core assembly 31 and the sealing piston 33 along the first direction Z relative to the inner chamber 20 to achieve the limiting of the pump core assembly 31 and the sealing piston 33.
[0090] For example, Figure 5A As shown, the first clamping portion 41 of the embodiment of the present application is formed around the outer wall of the limiting member 40 along the third direction (i.e., the circumferential direction of the dispenser 1, such as Figure 5AThe second clamping portion 31211 is a first outer buckle rib extending along the third direction R, and the third direction R surrounds the first direction Z. However, the embodiment of the present application does not limit the specific structure of the first clamping portion 41 and the second clamping portion 31211, as long as the limiter 40 and the pump inner ring 312 can be clamped, for example, a buckle connection can also be used.
[0091] In addition, the embodiment of the present application does not limit the number of lower legs 3121 of the pump inner ring 312. For example, the number of lower legs 3121 of the pump inner ring 312 in the embodiment of the present application can also be two, three, five, six or more.
[0092] Continue to refer Figure 3B Combined with Figure 5B The limiting member 40 of the embodiment of the present application also includes a first mounting portion, and the first end 201 of the inner warehouse also includes a second mounting portion corresponding to the first mounting portion, and the first mounting portion is sealed and connected to the second mounting portion so that the limiting member 40 is sealed and installed on the first end 201 of the inner warehouse.
[0093] Exemplarily, the first mounting portion of the embodiment of the present application is the first annular groove 42, and the second mounting portion is the second annular groove 2011. However, the embodiment of the present application does not specifically limit the structures of the first mounting portion and the second mounting portion, as long as the stopper 40 can be sealed and connected to the inner bin 20.
[0094] For the convenience of description, the following description is made by taking the first mounting portion being the first annular groove and the second mounting portion being the second annular groove as an example.
[0095] Specifically, Figure 5A and Figure 5B As shown, the second annular groove 2011 is provided with a first plug hole 2012, and the inner side wall 20111 of the second annular groove extends upward from the bottom wall 20112 of the second annular groove and defines the first plug hole 2012. The first annular groove 42 has a second plug hole 43 corresponding to the first plug hole 2012, and the inner side wall 422 of the first annular groove extends downward from the bottom wall 421 of the first annular groove and defines the second plug hole 43. Along the first direction Z, the pump core 311 passes through the second plug hole 43 and the first plug hole 2012 in sequence, and is connected with the inner side wall 422 of the first annular groove in an interference seal along the second direction X. Exemplarily, the inner side wall 422 of the first annular groove of the embodiment of the present application is inclined toward the second plug hole 43 along the third direction R, so that the inner side wall 422 of the first annular groove is connected with the outer surface of the pump core 311 in an interference seal.
[0096] In addition, the first annular groove 42 also has an installation space 44, and the inner side wall 422 of the first annular groove, the bottom wall 421 of the first annular groove and the inner wall of the stopper 40 located below the bottom wall 421 of the first annular groove jointly define the installation space 44. The inner side wall 20111 of the second annular groove is upwardly joined to the first annular groove 42 along the first direction Z, so that the end of the inner side wall 20111 of the second annular groove is accommodated in the installation space 44 and is sealed and connected with the inner wall of the stopper 40. Exemplarily, the outer surface of the inner side wall 20111 of the second annular groove of the embodiment of the present application is provided with a convex rib, and the inner wall of the stopper 40 is also provided with a convex rib corresponding thereto. Along the first direction Z, the convex rib of the inner side wall 20111 of the second annular groove is clamped up and down with the convex rib of the inner wall of the stopper 40, so that the inner side wall 20111 of the second annular groove is tightly connected with the inner wall of the stopper 40.
[0097] For example, in some possible implementations, the stopper 40 of the embodiment of the present application further includes a second annular gasket 45 corresponding to the first annular groove 42. Figure 5B As shown, the second annular gasket 45 is accommodated in the installation space 44 and is located between the bottom wall 421 of the first annular groove and the top surface of the inner wall 20111 of the second annular groove along the first direction Z, so that the first annular groove 42 is sealed and connected with the second annular groove 2011 along the first direction Z, thereby improving the sealing effect between the limit member 40 and the first end 201 of the inner chamber.
[0098] The embodiment of the present application does not specifically limit the material of the second annular gasket 45. By way of example, the second annular gasket 45 in the embodiment of the present application is a polyethylene (PE) gasket, but is not limited thereto. For example, it may also be a rubber gasket.
[0099] Continue to refer Figure 3B The pump core assembly 31 of the embodiment of the present application also includes a first direction (such as Figure 3B The inner chamber comprises a first end portion 201 and a second end portion 202. The first end portion 201 of the inner chamber further comprises a connecting portion 2013 extending downward.
[0100] Specifically, Figure 3BAs shown, along the first direction Z, one end of the pump core 311 provided with an inlet 3112 extends into the connecting member 313, and the inlet 3112 is connected to the connecting member 313, so that the pump core 311 is connected to the connecting member 313. That is to say, the product (for example, a mixture of the first product and the second product) can pass through the connecting member 313 to enter the inlet 3112 of the pump core 311, and flow into the head assembly 32 from the outlet 3111 through the pump core 311. The connecting portion 2013 is located in the second accommodating cavity 203 and extends downward, and the connecting member 313 is configured to be able to move along the first direction Z relative to the first end 201 of the inner chamber under the drive of the pump core 311.
[0101] Exemplarily, the connecting portion 2013 has a free end 20131 that is inclined inwardly along the third direction R. When the dispenser 1 of the embodiment of the present application is in the first state and the second state, along the first direction Z, the connecting member 313 passes through the first end 201 of the inner bin and extends into the second accommodating chamber 203, and is connected to the free end 20131 of the connecting portion 2013 in an interference sealing manner along the second direction X, so as to improve the sealing effect between the connecting member 313 and the first end 201 of the inner bin. When the dispenser 1 of the embodiment of the present application is in the third state, the connecting member 313 is entirely accommodated in the second accommodating chamber 203, and the free end 20131 of the connecting portion 2013 and the pump core 311 are spaced apart along the second direction (not shown in the figure). However, it is not limited to this. The embodiment of the present application does not specifically limit the structure of the connecting portion 2013, as long as the connecting portion 2013 can be sealed and connected to the connecting member 313 to enhance the sealing performance between the pump core assembly 31 and the first end 201 of the inner bin.
[0102] refer to Figure 6 Combined with Figure 3B The sealing piston 33 of the embodiment of the present application includes a piston body 331, an inner groove 332, an outer groove 333 and a connecting channel 334. The inner groove 332 and the outer groove 333 are both provided on the piston body 331 and are both along the third direction (such as Figure 6 The outer groove 333 and the inner groove 332 extend in the second direction (ie, the radial direction of the distributor 1, as shown in the R direction). Figure 6 The two components are spaced apart outwardly (as shown in the X direction).
[0103] Specifically, Figure 6 and Figure 3BAs shown, the inner side wall 3321 of the inner groove extends downward along the first direction Z to define a connecting passage 334 that passes through the piston body 331, and the first end 3131 of the connecting member is accommodated in the inner groove 332 and sleeved on the inner side wall 3321 of the inner groove. In other words, the first end 3131 of the connecting member is tightly connected to the inner side wall 3321 of the inner groove, so that the connecting passage 334 extends into the connecting member 313. Thus, on the one hand, the inner groove 332 of the sealing piston 33 is configured to be able to drive the piston body 331 to move along the first direction Z under the drive of the connecting member 313, and on the other hand, the connecting passage 334 passes through the piston body 331, so that the connecting passage 334 is connected to the first accommodating chamber 103, and then the connecting member 313 is connected to the first accommodating chamber 103 through the connecting passage 334.
[0104] Exemplarily, the outer side wall 3322 of the inner groove is further provided with six supporting ribs 3323, each of which extends upward from the piston body 331 along the first direction Z, so that the inner side wall 3321 of the inner groove and the first end 3131 of the connecting member are more closely engaged. However, the embodiment of the present application does not specifically limit the number of supporting ribs 3323, for example, the number of supporting ribs 3323 can also be two, three, four, five, seven or more.
[0105] Exemplarily, the sealing piston 33 of the embodiment of the present application also includes an annular edge 335, and three annular edges 335 are arranged at intervals along the third direction R on the outer edge of the piston body 331, and extend upward from the outer side wall of the outer groove 333 to guide the second end 202 of the inner chamber into the outer groove 333.
[0106] When the dispenser 1 of the embodiment of the present application is in the first state, the second end 202 of the inner bin is accommodated in the outer groove 333, and is connected to the inner side wall 3331 of the outer groove in an interference seal along the second direction X, so that the sealing piston 33 can be slidably sealed and engaged to the second end 202 of the inner bin. Exemplarily, the second end 202 of the inner bin of the embodiment of the present application is connected to the inner side wall 3331 of the outer groove in an interference seal, but the embodiment of the present application does not limit the connection method between the second end 202 of the inner bin and the sealing piston 33, as long as the sealing piston 33 can be slidably sealed and engaged to the second end 202 of the inner bin.
[0107] When the dispenser 1 of the embodiment of the present application is in the second state and the third state, the second end 202 of the inner warehouse is spaced apart from the outer groove 333, that is, the sealing piston 33 is spaced apart from the second end 202 of the inner warehouse, so that the inner warehouse 20 and the bottle body 10 are connected to each other, that is, the first accommodating chamber 103 is connected to the second accommodating chamber 203, and the second product in the second accommodating chamber 203 can enter the first accommodating chamber 103 by the action of gravity.
[0108] refer to Figure 7 , along the first direction (such as Figure 7 In the embodiment of the present application, the outer ring 34 of the pump is connected to the first end 101 of the bottle body and surrounds the inner ring 312 of the pump. By way of example, the inner wall 342 of the outer ring of the pump and the outer surface of the first end 101 of the bottle body are provided with corresponding ribs. Along the first direction Z, the ribs of the inner wall 342 of the outer ring of the pump are engaged with the ribs of the outer surface of the first end 101 of the bottle body, so that when the outer ring 34 of the pump is connected to the first end 101 of the bottle body, the outer ring 34 of the pump is more firmly engaged with the bottle body 10. However, the embodiment of the present application does not specifically limit the connection method between the outer ring 34 of the pump and the first end 101 of the bottle body, and it can also be a threaded connection, etc.
[0109] like Figure 7 As shown, the inner wall 342 of the pump outer ring is provided with a third clamping portion 343, and the outer wall of the pump inner ring 312 is provided with a fourth clamping portion 3123 corresponding to the third clamping portion 343. Thus, when the dispenser 1 of the embodiment of the present application is in the first state and the second state, the third clamping portion 343 of the pump outer ring 34 and the fourth clamping portion 3123 of the pump inner ring 312 are arranged at intervals along the first direction Z. When the dispenser 1 of the embodiment of the present application is in the third state, the third clamping portion 343 of the pump outer ring 34 is clamped with the fourth clamping portion 3123 of the pump inner ring 312 to limit the movement of the pump inner ring 312 along the first direction Z relative to the pump outer ring 34.
[0110] Furthermore, the embodiment of the present application utilizes the second clamping portion 31211 of the pump inner ring 312 and the first clamping portion 41 of the limiting member 40 for clamping and limiting, and at the same time utilizes the third clamping portion 343 of the pump outer ring 34 and the fourth clamping portion 3123 of the pump inner ring 312 for clamping and limiting, thereby further strengthening the anti-return design and achieving double protection against retraction, thereby preventing the pump core assembly 31 and the head assembly 32 from accidentally returning.
[0111] For example, reference Figure 7 Combine Figure 3A The third clamping portion 343 of the embodiment of the present application is an inner wall 342 surrounding the outer ring of the pump along the third direction (i.e., the circumferential direction of the dispenser 1, such as Figure 3A The fourth clamping portion 3123 is a second inner buckle rib extending along the third direction R around the outer wall of the pump inner ring 312. However, the specific structure of the third clamping portion 343 and the fourth clamping portion 3123 is not limited in the embodiment of the present application, as long as the pump outer ring 34 and the pump inner ring 312 can be clamped, for example, a snap connection can also be used.
[0112] Illustratively, the inner wall 342 of the pump outer ring and the outer wall of the second annular groove 2011 of the embodiment of the present application are provided with vertical ribs that fit each other, so that when the pump outer ring 34 is sleeved on the first end 201 of the inner warehouse, the connection between the pump outer ring 34 and the inner warehouse 20 is more secure.
[0113] In addition, if Figure 7 As shown, the inner wall 342 of the pump outer ring of the embodiment of the present application is further provided with four limiting ribs 345 arranged at intervals along the third direction R. Each limiting rib 345 extends along the first direction Z, so that when the dispenser 1 of the embodiment of the present application is assembled with the pump core assembly 31, the limiting rib 345 can abut against the pump inner ring 312, which facilitates the assembly of the elastic member 50 and the pump core 311. However, the embodiment of the present application does not specifically limit the number of limiting ribs 345, for example, the number of limiting ribs 345 can also be two, three, five, six, seven or more.
[0114] Continue to refer Figure 8 and Figure 5B Combined with Figure 3A The inner chamber 20 of the embodiment of the present application further includes a first annular flange 21 protruding from the outer surface 204 of the inner chamber, and the outer ring 34 of the pump further includes a first shoulder 344 located on the inner surface. The lower surface of the first annular flange 21 is provided with a flange that is aligned with the outer surface 204 of the inner chamber in the second direction (such as Figure 3A The first sleeves 22 are arranged at intervals (as shown in the X direction).
[0115] Specifically, Figure 8 As shown, along the first direction (such as Figure 8 The first shoulder 344 is arranged opposite to the first annular flange 21, and the first annular flange 21 is located between the first shoulder 344 of the pump outer ring 34 and the first end 101 of the bottle body. The first sleeve 22 is sealed with the inner wall 104 of the bottle body, so that the inner chamber 20 is fixed on the bottle body 10 and is sealed with the bottle body 10. Figure 8 The first sleeve 22 is located between the circumferential side wall of the first annular flange 21 and the outer surface 204 of the inner bin, and the first sleeve 22 is connected to the inner wall 104 of the bottle body in an interference sealing manner.
[0116] For example, in some possible implementations, the inner chamber 20 of the embodiment of the present application further includes a first annular gasket 23. Figure 8As shown, along the first direction Z, the first annular gasket 23 is located between the lower surface of the first annular flange 21 and the first end 101 of the bottle body, so that the first annular flange 21 is sealed and connected with the first end 101 of the bottle body along the first direction Z, thereby improving the sealing effect between the inner bin 20 and the bottle body 10. The present embodiment of the application does not specifically limit the material of the first annular gasket 23. By way of example, the first annular gasket 23 of the present embodiment of the application is a PE gasket, but is not limited thereto, and may also be a rubber gasket, etc.
[0117] Continue to refer Figure 2B The head assembly 32 of the embodiment of the present application further includes a discharge channel 322. Specifically, as Figure 2B As shown, the first end 3221 of the discharge channel is connected to the discharge port 321, and the second end 3222 of the discharge channel is connected to the outlet 3111 of the pump core 311, so that the discharge port 321 is connected to the outlet 3111. Thus, when the dispenser 1 of the embodiment of the present application is in the third state, the mixture from the first accommodating chamber 103 can enter the connecting member 313 from the connecting channel 334, pass through the inlet 3112 of the pump core 311, and then pass through the outlet 3111 of the pump core 311 to enter the discharge channel 322 of the head assembly 32, and finally leave the dispenser 1 from the discharge port 321 to achieve the distribution of the mixture. However, the embodiment of the present application does not specifically limit the structure of the head assembly 32. For example, the head assembly 32 of the embodiment of the present application is composed of an aluminum cover, a nozzle and a pressure head. The aluminum cover is sleeved on the outside of the pressure head, the discharge channel 322 is arranged in the pressure head, and the nozzle has a discharge port 321.
[0118] The dispenser 1 of the embodiment of the present application further includes an elastic member 50, which is sleeved outside the pump core 311. Along the first direction Z, the elastic member 50 is located between the pump inner ring 312 and the limiter 40, so that the pump inner ring 312 is elastically connected to the limiter 40, so as to bias the pump inner ring 312 in the first direction Z. Exemplarily, the elastic member 50 of the embodiment of the present application is a spring, but the embodiment of the present application does not specifically limit the structure of the elastic member 50, as long as the pump inner ring 312 can be elastically connected to the limiter 40 to assist in adjusting the pressing force applied by the consumer so that the pressing feel is good, for example, it can also be a silicone member.
[0119] refer to Fig. 9 Combined with Figure 1B, the cover assembly 60 of the embodiment of the present application includes an outer cover 61, a middle cover 62 and an inner cover 63 which are sequentially sleeved from the outside to the inside. Exemplarily, the outer cover 61 has a top sheet 611 arranged on the side wall of the outer cover 61 along the first direction Z, and the top sheet 611 is snap-fitted with the side wall of the outer cover 61. Specifically, the inner cover 63 has a receiving space 631. When the cover assembly 60 is sleeved on the outer ring 34 of the pump, the head assembly 32 is accommodated in the receiving space 631 to protect the discharge port 321 of the head assembly 32 and prevent the dispenser 1 from being accidentally actuated to affect the consumer's experience. Exemplarily, the inner wall of the inner cover 63 is also provided with a plurality of vertical ribs 632 extending along the first direction Z. Along the third direction R, a plurality of vertical ribs 632 are spaced apart on the inner wall of the inner cover 63. When the cover assembly 60 is sleeved on the pump outer ring 34, the outer surface of the pump outer ring 34 accommodated in the accommodating space 631 abuts against the vertical ribs 632, so that the cover assembly 60 can be more firmly sleeved on the pump assembly 30.
[0120] In addition, for the purpose of aesthetics and convenient operation, the dispenser 1 of the embodiment of the present application further includes a decorative ring 70, and the decorative ring 70 is arranged between the bottle body 10 and the cap assembly 60 along the first direction Z. Exemplarily, the bottle body 10, the inner bin 20, the cap assembly 60 and the decorative ring 70 of the embodiment of the present application are made of plastic, but are not limited thereto, and may also be made of metal or alloy, for example.
[0121] The operation process of the first state, the second state and the third state of the dispenser 1 in the embodiment of the present application will be described in detail below. Specifically, it includes:
[0122] In the first state, the first product is stored in the bottle body 10, and the second product is stored in the inner bin 20. At this time, the head assembly 32 is not pushed, and the elastic member 50 biases the pump inner ring 312 upward. Under the action of the elastic member 50, each lower leg 3121 of the pump inner ring 312 is spaced apart from the stopper 40, the first clamping portion 41 of the stopper 40 is spaced apart from the second clamping portion 31211 of each lower leg 3121, and the third clamping portion 343 of the pump outer ring 34 is spaced apart from the fourth clamping portion 3123 of the pump inner ring 312. The pump core 311 is inserted into the inner warehouse through the first hole 2012 along the first direction Z, and the pump core 311 is sealedly connected to the limit member 40, the sealing piston 33 is sealingly engaged to the second end 202 of the inner warehouse, and the connecting member 313 is sealedly connected to the free end 20131 of the connecting portion 2013 of the first end 201 of the inner warehouse, so that the inner warehouse 20 is sealed closed, and the bottle body 10 and the inner warehouse 20 are separated by the sealing piston 33.
[0123] Among them, the first end 201 of the inner chamber of the embodiment of the present application is connected to the pump core assembly 31 along the second direction X through an interference seal, thereby realizing the sealing of the upper part of the inner chamber 20, and the second end 202 of the inner chamber is connected to the sealing piston 33 along the second direction X through an interference seal, thereby realizing the sealing of the lower part of the inner chamber 20. Compared with the dispenser in the prior art that realizes the inner chamber sealing design through two pistons that can slide up and down, the dispenser 1 of the embodiment of the present application realizes the upper and lower sealing design of the inner chamber 20 through the pump core assembly 31 and the sealing piston 33, and does not need to set an additional piston at the first end 201 of the inner chamber, and has the advantages of simple structure, good sealing effect and high stability.
[0124] In the second state, as the consumer pushes (for example, the consumer presses down) the head assembly 32, the head assembly 32 pushes the pump core 311. Since the pump inner ring 312 is fixedly arranged on the pump core 311, the pump core 311 drives the pump inner ring 312 to move synchronously along the first direction Z relative to the inner bin 20 and the stopper 40, and resists the biasing effect of the elastic member 50 located between the stopper 40 and the pump inner ring 312. The movement of the pump core 311 in the first direction Z pushes the connecting member 313 to move downward to push the sealing piston 33 to move downward synchronously, thereby opening the inner bin 20, so that the second product falls into the bottle body 10 containing the first product. At this time, the second product can enter the bottle body 10 by gravity for mixing, and the consumer can also shake the dispenser 1 to accelerate the mixing process, especially when the product is powder. Exemplarily, in the second state, the pump core 311 is still not started, in other words, the pump core 311 has not been actuated.
[0125] In the third state, the consumer further pushes (for example, the consumer presses downward) the head assembly 32, and the head assembly 32 continues to push the pump core 311 to move downward along the first direction Z until the pump inner ring 312 moves downward to a limited position. In this position, the second shoulder 3122 of each lower leg 3121 of the pump inner ring 312 abuts against the top surface 401 of the stopper, the first clamping portion 41 of the stopper 40 clamps with the second clamping portion 31211 of each lower leg 3121, and the third clamping portion 343 of the pump outer ring 34 clamps with the fourth clamping portion 3123 of the pump inner ring 312. The pump inner ring 312 is subject to the double anti-return restriction of the stopper 40 and the pump outer ring 34. As the pump inner ring 312 cannot be further displaced relative to the first end 201 of the inner chamber, the consumer further pushes the head assembly 32 to start the pump core 311, thereby dispensing the mixture of the first product and the second product in the bottle body 10.
[0126] In addition, in the third state, after the dispenser 1 has completed the dispensing of the mixture, the consumer releases the force (i.e., external force) applied to the head assembly 32, and the pump core 311 is not actuated. However, since the pump inner ring 312 is still subject to the double anti-return restrictions of the stopper 40 and the pump outer ring 34, the dispenser 1 can wait for the next dispensing operation again. In other words, when the dispenser 1 of the embodiment of the present application ends in the second state, i.e., after completing the mixing operation of the first product and the second product, the pump core 311 can be started multiple times in the third state to perform the dispensing operation.
[0127] Fig. 10A and Fig. 10B A second embodiment of the dispenser of the present invention is shown.
[0128] refer to Fig. 10A and Fig. 10B In the embodiment of the present application, the difference from the first embodiment is that the outer surface of the second reservoir (e.g., the outer surface 204 of the inner bin) of the embodiment of the present application is provided with a second sleeve 24, and the outer end 2401 of the second sleeve is provided with a second annular flange 25, and the connecting portion 2013 of the embodiment of the present application is always kept in a sealed connection with the connecting member 313. In addition, the remaining structures of the dispenser of the embodiment of the present application are the same as those of the first embodiment, such as the first reservoir (e.g., the bottle body 10), the stopper 40 and the pump assembly 30, etc., which will not be described in detail here.
[0129] For the convenience of explanation, the following description is based on an example in which the first storage container is a bottle body and the second storage container is an inner bin.
[0130] In the present application embodiment, Fig. 10A and Fig. 10B As shown, the inner bin 20 of the embodiment of the present application further includes a second sleeve 24 disposed on the outer surface 204 of the inner bin, along the second direction (such as Fig. 10A and Fig. 10B The second sleeve 24 is connected to the inner wall 104 of the bottle body in an interference-sealed manner, and a second annular flange 25 is provided at the outer end 2401 of the second sleeve.
[0131] Specifically, the second sleeve 24 of the embodiment of the present application includes an outer end, an inner end and a middle part. Among them, the inner end 2402 of the second sleeve is connected to the outer surface 204 of the inner warehouse, the outer end 2401 of the second sleeve is spaced apart from the first end 201 of the inner warehouse, and the middle part 2403 of the second sleeve is connected to the inner wall 104 of the bottle body in an interference seal along the second direction Y. That is, the opening of the second sleeve 24 of the embodiment of the present application is arranged upward along the first direction Z, and the opening of the second end 202 of the inner warehouse is arranged downward along the first direction Z, so as to facilitate the demoulding process of the inner warehouse 20 of the embodiment of the present application during the production process, which helps to improve the production efficiency and yield of the dispenser 1. However, it is not limited to this. The embodiment of the present application does not specifically limit the structure of the second sleeve 24, as long as the first end 201 of the inner warehouse can be sealed and connected with the first end 101 of the bottle body.
[0132] Along the first direction (such as Fig. 10A and Fig. 10B The first shoulder 344 of the pump outer ring 34 is arranged opposite to the second annular flange 25, and the second annular flange 25 is located between the first shoulder 344 of the pump outer ring 34 and the first end 101 of the bottle body, and is sealed and connected to the first end 101 of the bottle body along the first direction Z, so that the inner chamber 20 is fixed on the bottle body 10 and is sealed and connected to the bottle body 10.
[0133] In other words, in the embodiment of the present application, the first product is enclosed between the inner wall 104 of the bottle body, the inner bin 20, the sealing piston 33 and the slidable vacuum piston 12, and the inner wall 104 of the bottle body, the inner bin 20, the sealing piston 33 and the vacuum piston 12 together define the first accommodating chamber 103. The first end 201 of the inner bin is connected to the inner wall of the first end 101 of the bottle body in an interference seal, and the vacuum piston 12 is connected to the inner wall 104 of the bottle body in an interference seal, so that the bottle body 10 of the embodiment of the present application forms a cross-sectional view (see FIG. 1 ) through the first end 201 of the inner bin 20 and the vacuum piston 12. Fig. 10B ) The annular sealing structure is closed from top to bottom and from left to right, with a simple structure and guaranteed functionality.
[0134] Continue to refer Fig. 10A, the free end 20131 of the connection part 2013 of the embodiment of the present application is connected to the connection piece 313 of the pump core assembly 31 in an interference seal along the second direction Y. Exemplarily, the free end 20131 of the connection part 2013 extends downward along the first direction Z and extends into the inner groove 332 of the sealing piston 33, so that when the dispenser 1 of the embodiment of the present application is in the first state, the second state and the third state, along the first direction Z, the connection piece 313 passes through the first end 201 of the inner bin and extends into the second accommodating chamber 203, and is connected to the free end 20131 of the connection part 2013 in an interference seal along the second direction X. That is, the connection part 2013 of the embodiment of the present application always maintains a sealed connection with the connection piece 313, so as to ensure that the second product in the inner bin 20 will not leak from the first end 201 of the inner bin, and improve the sealing effect between the connection piece 313 and the first end 201 of the inner bin.
[0135] In other words, in the embodiment of the present application, the second product is enclosed between the inner wall of the inner bin 20, the sealing piston 33, the connecting portion 2013 and the connecting piece 313, and the inner wall of the inner bin 20, the sealing piston 33, the connecting portion 2013 and the connecting piece 313 jointly define the second accommodating chamber 203. The second end 202 of the inner bin is connected to the inner side wall 3331 of the outer groove of the sealing piston 33 by interference sealing, the free end 20131 of the connecting portion 2013 is connected to the outer side wall of the connecting piece 313 by interference sealing, and the inner side wall of the connecting piece 313 is connected to the inner side wall 3321 of the inner groove by interference sealing.
[0136] However, the embodiment of the present application does not specifically limit the structure of the connection part 2013, as long as the connection part 2013 can be sealed and connected with the connecting member 313. Based on this, it should be noted that the embodiment of the present application does not specifically limit the connection relationship between the stopper 40 and the pump core 311. In the first embodiment described above, the stopper 40 and the pump core 311 are connected in an interference seal along the second direction Y, but it is not limited thereto. Since the connection part 2013 always maintains a sealed connection with the connecting member 313, the stopper 40 of the embodiment of the present application can also be connected to the pump core 311 only by sliding. In addition, the embodiment of the present application can also be provided with the elastic member 50 in the first embodiment described above.
[0137] In summary, a dispenser 1 provided in an embodiment of the present application not only improves the sealing effect of the inner bin and between the inner bin and the bottle body through the upper and lower multi-sealing design between the inner bin and the bottle body, but also does not need to select a pump core with a special fixed design (for example, a pump inner ring that is limited by a threaded connection) and a pump core with a special sealing design (for example, a piston that is sealed with the first end of the inner bin by a slidable sealing method). A universal pump core can be used to achieve double-material mixing, thereby reducing costs and improving the consumer experience when using it.
[0138] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.
Claims
1. A dispenser, characterized in that: include: A first storage container extends along a first direction and has a first accommodating cavity for storing a first product; A second storage container extends along the first direction and has a second accommodating cavity for storing a second product different from the first product; The first end of the second reservoir is sealed and connected to the first end of the first reservoir, and a first plug hole is formed at the first end of the second reservoir, and the first plug hole is communicated with the second accommodating cavity; A limiting member, fixedly disposed at the first end of the second storage container; Pump assembly, comprising: A pump core assembly, wherein the pump core assembly is inserted into the second accommodating cavity through the first insertion hole along the first direction, and the pump core assembly is sealed and connected with the first end of the second reservoir along the second direction, and the pump core assembly is configured to be able to move along the first direction relative to the first end of the second reservoir and the stopper under the action of an external force, and the first direction intersects with the second direction; A sealing piston is connected to the pump core assembly and accommodated in the first accommodating chamber. The sealing piston is used to be sealed and connected to the second end of the second reservoir. The sealing piston is configured to be able to move along the first direction under the drive of the pump core assembly; wherein, The dispenser is configured to include a first state, a second state, and a third state; In the first state, the pump core assembly is not pushed, and the first accommodating chamber and the second accommodating chamber are separated by the sealing piston; In the second state, the pump core assembly is pushed and drives the sealing piston to move along the first direction, so that the sealing piston is spaced apart from the second reservoir, so that the second product can enter the first accommodating chamber and form a mixture with the first product; In the third state, the pump core assembly is further pushed until it is connected to the limiting member to limit the pump core assembly from driving the sealing piston to move along the first direction, and the pump core assembly is started to distribute the mixture.
2. The dispenser according to claim 1, characterized in that The pump assembly further comprises a pump outer ring, which is connected to a first end of the first reservoir along the first direction, the pump outer ring comprises a first shoulder on an inner surface, and the second reservoir further comprises a first annular flange protruding from an outer surface of the second reservoir; Along the first direction, the first shoulder is arranged opposite to the first annular flange, the first annular flange is located between the first shoulder of the pump outer ring and the first end of the first reservoir, and is sealed and connected to the first end of the first storage portion along the first direction; A first sleeve is disposed on the lower surface of the first annular flange and is spaced apart from the outer surface of the second reservoir along the second direction. The first sleeve is connected to the inner wall of the first reservoir in an interference sealing manner along the second direction.
3. The dispenser according to claim 2, characterized in that The second reservoir further includes a first annular gasket located between the lower surface of the first annular flange and the first end of the first reservoir along the first direction so that the first annular flange is sealed and connected to the first end of the first reservoir along the first direction.
4. The dispenser according to claim 1, characterized in that The pump assembly further comprises a pump outer ring, wherein the pump outer ring is connected to a first end of the first reservoir along the first direction, the pump outer ring comprises a first shoulder on an inner surface, and the second reservoir further comprises a second sleeve disposed on an outer surface of the second reservoir; Along the second direction, the second sleeve is connected to the inner wall of the first reservoir in an interference seal, the inner end of the second sleeve is connected to the outer surface of the second reservoir, the outer end of the second sleeve is spaced from the first end of the second reservoir and is provided with a second annular flange; Along the first direction, the first shoulder is arranged opposite to the second annular flange, the second annular flange is located between the first shoulder of the pump outer ring and the first end of the first reservoir, and is sealed and connected to the first end of the first storage portion along the first direction.
5. The dispenser according to claim 1, characterized in that The limiting member includes a first mounting portion, the first end of the second reservoir includes a second mounting portion corresponding to the first mounting portion, the first mounting portion has a mounting space and a second plug hole corresponding to the first plug hole; wherein, The first mounting portion is sealed and connected to the second mounting portion, and a portion of the second mounting portion is accommodated in the mounting space. Along the first direction, the pump core assembly is inserted into the second accommodating cavity through the second insertion hole and the first insertion hole in sequence.
6. The dispenser according to claim 5, characterized in that The first mounting portion comprises a first annular groove, the inner side wall of the first annular groove extends downward from the bottom wall of the first annular groove and defines the second insertion hole, along the first direction, the pump core assembly passes through the second insertion hole, and the inner side wall of the first annular groove, the bottom wall of the first annular groove and a part of the inner wall of the stopper jointly define the installation space; The second mounting portion includes a second annular groove, an inner side wall of which extends upward from the bottom wall of the second annular groove and defines the first insertion hole, and a portion of the inner side wall of the second annular groove is accommodated in the mounting space and is sealed and connected to the inner wall of the limiting member.
7. The dispenser according to claim 6, characterized in that The limiting member also includes a second annular gasket corresponding to the first annular groove, the second annular gasket is accommodated in the installation space, and is located between the bottom wall of the first annular groove and the inner wall of the second annular groove along the first direction, so that the bottom wall of the first annular groove and the inner wall of the second annular groove are sealed and connected along the first direction.
8. The dispenser according to claim 2 or 4, characterized in that The pump core assembly also includes: a pump core, the pump core extending along the first direction and having an outlet and an inlet communicating with each other, the inlet communicating with the first accommodating chamber, the pump core being configured to be able to move relative to the limiting member along the first direction under the action of an external force; A connecting piece passes through along the first direction, and along the first direction, the inlet of the pump core extends into the connecting piece and is connected with the connecting piece, and the connecting piece is configured to be able to move along the first direction under the drive of the pump core.
9. The dispenser according to claim 8, characterized in that The pump core is connected to the stopper in an interference seal along the second direction, the first end of the second reservoir further includes a connecting portion extending downward, the connecting portion is located in the second accommodating cavity, and the connecting portion has a free end inclined inwardly along a third direction, and the third direction surrounds the first direction; wherein, In the first state and the second state, the free end of the connecting portion is connected to the connecting member in an interference-sealed manner along the second direction; In the third state, the free end of the connecting portion is spaced apart from the pump core along the second direction.
10. The dispenser according to claim 8, characterized in that The first end of the second reservoir further includes a connecting portion extending downward, the connecting portion is located in the second accommodating cavity, and the connecting portion has a free end inclined inwardly along a third direction, and the third direction surrounds the first direction; wherein, In the first state, the second state and the third state, the free end of the connecting portion is connected to the connecting member in an interference sealing manner along the second direction.
11. The dispenser according to claim 8, characterized in that The sealing piston comprises: Piston body; an inner groove, which is provided in the piston body and extends along the third direction, wherein the inner side wall of the inner groove extends downward along the first direction to define a connecting channel, wherein the connecting channel passes through the piston body, wherein the first end of the connecting member is accommodated in the inner groove and sleeved on the inner side wall of the inner groove, so that the connecting member is connected with the first accommodating cavity through the connecting channel, and wherein the inner groove is configured to be able to drive the piston body to move along the first direction under the drive of the connecting member; An outer groove is provided on the piston body and surrounds the inner groove. Along the second direction, the outer groove and the inner groove are spaced apart from each other; wherein, In the first state, the second end of the second reservoir is accommodated in the outer groove and is interference-sealed with the inner side wall of the outer groove along the second direction; In the second state and the third state, the second end of the second reservoir is spaced apart from the outer groove so that the first accommodating cavity is communicated with the second accommodating cavity.
12. The dispenser according to claim 8, characterized in that The pump core assembly also includes: A pump inner ring, fixedly sleeved on the pump core, the pump inner ring is configured to be able to follow the pump core to move relative to the limiter along the first direction, the outer wall of the limiter is provided with a first clamping portion, and the pump inner ring is provided with a second clamping portion corresponding to the first clamping portion; In the first state and the second state, along the first direction, the first clamping portion and the second clamping portion are spaced apart; In the third state, the first clamping portion is clamped with the second clamping portion to limit the movement of the pump inner ring relative to the limiting member along the first direction.
13. The dispenser according to claim 12, characterized in that The pump inner ring includes a plurality of lower legs extending downwardly along the first direction, the inner wall of each of the lower legs is provided with the second clamping portion, and the pump inner ring also includes a second shoulder located on the inner surface, and the second shoulder is arranged opposite to the top surface of the limiter along the first direction; In the first state and the second state, along the first direction, the second shoulder of the inner ring of the pump is spaced apart from the top surface of the stopper, and the second clamping portion of each lower leg is spaced apart from the first clamping portion; In the third state, the second shoulder of each of the lower legs abuts against the top surface of the limiting member, and the second clamping portion of each of the lower legs is clamped with the first clamping portion.
14. The dispenser according to claim 13, characterized in that The first clamping portion includes a first outer buckle rib, and the second clamping portion includes a first inner buckle rib. The first outer buckle rib and the first inner buckle rib both extend along a third direction, and the third direction surrounds the first direction.
15. The dispenser according to claim 13, characterized in that The pump outer ring is arranged to surround the pump inner ring, the inner wall of the pump outer ring is provided with a third clamping portion, and the outer wall of the pump inner ring is provided with a fourth clamping portion corresponding to the third clamping portion; In the first state and the second state, along the first direction, the third clamping portion and the fourth clamping portion are spaced apart from each other; In the third state, the third engaging portion is engaged with the fourth engaging portion to restrict the pump inner ring from moving relative to the pump outer ring along the first direction.
16. The dispenser according to claim 15, characterized in that The third clamping portion includes a second inner buckle rib, and the fourth clamping portion includes a second outer buckle rib. The second inner buckle rib and the second outer buckle rib both extend along a third direction, and the third direction surrounds the first direction.
17. The dispenser according to claim 8, characterized in that The pump assembly further comprises a head assembly connected to the first end of the pump core assembly, wherein the head assembly is configured to drive the pump core assembly to move along the first direction under the push of an external force; The head assembly includes a discharge port and a discharge channel, a first end of the discharge channel is connected to the discharge port, and a second end of the discharge channel is connected to the outlet of the pump core, so that the discharge port is connected to the outlet.
18. The dispenser of claim 12, wherein: It also includes an elastic member, which is sleeved outside the pump core. Along the first direction, the elastic member is located between the pump inner ring and the limiting member, so that the pump inner ring is elastically connected to the limiting member.