Mixer for fluid components
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- HENKEL KGAA
- Filing Date
- 2023-07-26
- Publication Date
- 2026-06-03
AI Technical Summary
Existing mixers for generating hair dye from two fluid components are often manual, inefficient, and prone to quality issues due to uneven mixing, exposure to air, and dependence on human experience.
A compact mixer design featuring a mixing head with releasable cartridges and a sliding mixing assembly with upstream and downstream mixing pathway branches, equipped with mixing rods that ensure even and quick mixing of fluid components without human intervention.
The mixer ensures even and quick mixing of fluid components, preventing exposure to air and maintaining product quality, while being compact and suitable for direct application, thus improving the efficiency and consistency of hair dye production.
Smart Images

Figure CN2023109299_30012025_PF_FP_ABST
Abstract
Description
Mixer for Fluid ComponentsFIELD
[0001] The present disclosure generally relates to a mixer for fluid components or fluid agents, especially a mixer for generating a hair dye by mixing the fluid components or fluid agents.BACKGROUND
[0002] Sometimes, a composite fluid material, prior to be used or distributed, may be produced by mixing at least two fluid components. In the field of cosmetics, a hair dye is considered as such a composite fluid material. Usually, the hair dye is comprised of two fluid components, such as fluid agents. Before the hair dye will be applied or distributed onto a person's hair, the two fluid components or fluid agents are separately stored in their respective cartridges. This is because the fluid components or fluid agents are chemically active. Therefore, prior to being mixed with each other to generate the hair dye, they have to be hermetically stored in the cartridges. When necessary, the fluid components or fluid agents will be discharged from their respective cartridges and be mixed with each other to generate the hair dye. In order to guarantee the quality of the generated hair dye, they need be mixed evenly and quickly. Conventionally, the fluid components or fluid agents may be manually discharged from the cartridges onto a plane or into a container and mixed with each other manually by a rod which is used to stir the discharged fluid components or fluid agents. In this case, the discharged fluid components or fluid agents are exposure to air and smell pungent, thus discomforting a worker. Moreover, the quality of the hair dye generated by manual stirring will greatly depend on the worker's experience.
[0003] Furthermore, the hair dye generated by mixing needs to be applied or distributed onto a person's hair in a shorter time. Otherwise, the hair dye exposure to air for a long term before its application or distribution onto the hair will be deteriorated and thus the final hair coloration effect will be negatively affected.
[0004] Although there are some mixers for generating a hair dye from two fluid components or fluid agents found in the market, some of them do not mix the fluid components or fluid agents, some of them cannot mix the fluid components or fluid agents evenly, some of them can be used only once, and the others of them are not compact enough for usage.SUMMARY
[0005] In order to solve the above issues, the present disclosure is aimed at proposing a novel and compact mixer for fluid components such that the fluid components when passing the mixer can be mixed with each other evenly and quickly without human experience and thus the mixed final product after being discharged out of the mixer can be for direct usage.
[0006] According to one aspect, the present disclosure proposes a mixer for fluid components, comprising:
[0007] a mixing head having a body and configured to releasably receive at least two cartridges for storing different pressurized fluid components therein; and
[0008] a mixing assembly slidably installed in the body of the mixing head, wherein a mixing pathway is defined in the mixing assembly at a plane substantially perpendicular to a lateral direction of the mixing assembly, the mixing pathway comprises an upstream mixing pathway branch and a downstream mixing pathway branch, a mixing rod for mixing fluid components is arranged in each of the upstream and downstream mixing pathway branches, and the mixing assembly is configured to be longitudinally slid between a first state, in which fluid components to be mixed are prevented from flowing through the mixing pathway from the cartridges, and a second state, in which fluid components to be mixed are allowed to flow through the mixing pathway.
[0009] Because in the first state of the mixing assembly the fluid components to be mixed are prevented from flowing sequentially through the upstream and downstream mixing pathway branches from the cartridges, the fluid components can be safely stored in the cartridges. Therefore, the quality of the fluid components will not be deteriorated by contacting ambient air. Moreover, only in the second state of the mixing assembly, the fluid components can be mixed by the mixing rods when they flow through the mixing pathway. This enables the finally mixed product to be used or distributed directly after its discharging from the mixing head. This will also ensure that the quality of the finally mixed product will not be deteriorated by contacting ambient air. Moreover, defining the mixing pathway in the mixing assembly will enable the whole mixer to be more compact and the lengths of the mixing pathway branches to be maximized, facilitating complete mixing of the fluid components.
[0010] In an embodiment, the mixing assembly comprises a seat slidable in the body of the mixing head, a mixing member at least partially inserted in a basin part of the seat, and a discharge member at least partially inserted between the mixing member and the basin part, and the upper mixing pathway branch is defined in the basin part only and the downstream mixing pathway branch is defined in both of the basin part and the discharge member.
[0011] In an embodiment, each mixing rod has a central shaft and a plurality of petals extending radially outwards therefrom, longitudinally spaced from each other along the central shaft, and rotated relative to each other about the shaft by identical or different angles in alternate reverse spiral manner such that fluid components, when passing through them, will be mixed with each other.
[0012] In an embodiment, the seat comprises two tubular tubes and a bucket part all protruding longitudinally from a supporting side of the basin part, the bucket part is between the two tubular tubes, the upstream mixing pathway branch and a portion of the downstream mixing pathway is defined in the bucket part, the tubular tubes are configured to receive the pressurized fluid components from the cartridges in the second state of the mixing assembly.
[0013] In an embodiment, the mixing member comprises an insertion part formed on a distal end thereof, the insertion part is inserted in the bucket part to form two cylinder-shaped hollow spaces, one of which is configured to form the upstream mixing pathway branch and the other of which is configured to form said portion of the downstream mixing pathway branch, the insertion part is longitudinally shorter than the bucket part such that when the distal end of the mixing member is in fluid-tight contact with the supporting side of the basin part, a fluid communication location is left at a distal closed end of the bucket part where the upstream mixing pathway branch and said portion of the downstream mixing pathway branch are connected to each other by the fluid communication location.
[0014] In an embodiment, between the distal end of the mixing member and the supporting side of the basin part, two connection channels are defined to fluidly connect the two cylinder-shaped hollow spaces respectively with the upstream mixing pathway branch only.
[0015] In an embodiment, the two connection channels are substantially identical to each other in length.
[0016] In an embodiment, the mixing member is formed with a hollow cylinder part which aligns with the respective cylinder-shaped hollow space to define the downstream mixing pathway branch when the mixing member is inserted in the seat.
[0017] In an embodiment, the insertion part is inserted in the bucket part in an interference fit manner.
[0018] In an embodiment, the discharge member is provided with a spray port configured to protrude from the body of the mixing head and in fluid communication with the mixing pathway.
[0019] In an embodiment, a cover is installed in the body of the mixing head and is provided with a cantilever part to contact the discharge member of the mixing assembly, and the mixing assembly can be slid from the first state to the second state by pressing the cantilever part.
[0020] In an embodiment, the cantilever part is formed with several bulges spaced from each other, such that the cover (5) is in contact with the discharge member via the bulges only.
[0021] In an embodiment, the mixing head is provided with a base releasably connected to the body longitudinally opposite to the cover, and configured to receive the cartridges.
[0022] In an embodiment, the mixer further comprises a cartridge receiving compartment releasably connected to the body of the mixing head, in which cartridge receiving compartment the cartridges are releasably installable.
[0023] In an embodiment, the tubular tubes of the seat are configure to contact the respective cartridges in the base such that in the second state of the mixing assembly the tubular tubes of the seat are driven to longitudinally press the respective cartridges such that the pressurized fluid components can be discharged from the cartridges into the tubular tubes.
[0024] In an embodiment, the tubular tubes of the seat are arranged side-by-side in the lateral direction of the mixing assembly.
[0025] In an embodiment, the mixer is configured to generate a hair dye by mixing two fluid components.
[0026] Using the technical means as disclosed here, the mixer can be designed in a compact way and thus the fluid components, when are flowing through the mixing head of the mixer, can be automatically and more evenly mixed with each other. Besides, although the mixer is compact in shape, the length of the mixing pathways can be maximized in the mixing head such that the mixing effect can be improved. Moreover, as the mixing occurs in the interior of the mixing head, no odor discomforting a worker may be smelt during the mixing. Especially when the mixer is used a mixer for generating a hair dye, the hair dye discharged from the mixer can be directly distributed onto one's hairs, to avoid deterioration of the hair dye due to exposure to air.BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The principles and the other aspects of the present disclosure will be explained in the following description with reference to the drawings. In the drawings of the present disclosure, the features having the same configuration or same functions may be represented by the same reference numerals respectively. In the drawings:
[0028] Fig. 1 is a perspective view schematically illustrating a mixer for two fluid components or fluid agents according to an embodiment of the present disclosure, in which the mixer is connected with two cartridges;
[0029] Fig. 2 is an exploded and perspective view schematically illustrating the mixer of Fig. 1;
[0030] Fig. 3 is a perspective view schematically illustrating a base of the mixer according to an embodiment of the present disclosure, wherein the based will be installed in the mixing head;
[0031] Fig. 4 is a perspective view schematically illustrating a seat of the mixer according to an embodiment of the present disclosure, wherein the seat will be installed in the mixing head;
[0032] Fig. 5 is a perspective view schematically illustrating a mixing member of the mixer according to an embodiment of the present disclosure, wherein the mixing member will be installed in the seat;
[0033] Fig. 6 is a perspective view schematically illustrating a cover of the mixer according to an embodiment of the present disclosure, wherein the cover will be installed in a body of the mixing head;
[0034] Fig. 7 is a partially cross-sectional and perspective view schematically illustrating the assembled mixer according to the embodiment of the present disclosure, in which the cartridges have been connected to the mixer;
[0035] Fig. 8 is also a partially cross-sectional and perspective view schematically illustrating the assembled mixer according to the embodiment of the present disclosure, in which the cartridges have been connected to the mixer;
[0036] Fig. 9 is a cross-sectional and perspective view illustrating the assembled mixer according to the embodiment of the present disclosure, in which the section cutting plane is substantially perpendicular to a lateral direction of the mixer; and
[0037] Fig. 10 is a cross-sectional and perspective view illustrating the assembled mixer according to the embodiment of the present disclosure, in which the section cutting plane is substantially parallel to a lateral direction of the mixer.DETAILED DESCRIPTION OF EMBODIMENTS
[0038] A mixer for fluid components or fluid agents according to an embodiment of the present disclosure will be explained below. Here, the mixer as explained is used to mix two fluid components or fluid agents therein. However, it could be conceived by a person skilled in the art that the mixer as explained here can be used to mix three or more fluid components or fluid agents by revising the mixer in a reasonable way which is well-known in the art. Moreover, although the mixer will be explained here as a mixer for generating a hair dye through two fluid components or fluid agents thereof for example, the mixer according to the present disclosure can be used to generate any other composite fluid material which is formed by mixing at least two fluid components or fluid agents.
[0039] As shown by Fig. 1, the mixer 100 according to the embodiment of the present disclosure generally comprises a mixing head 3 configured to releasably receive two or more cartridges 4. In Fig. 1, only two cartridges 4 are shown side-by-side along a lateral direction of the mixer 100 for example. Each cartridge 4 is substantially cylinder-shaped, configured to store a pressurized fluid component or fluid agent for generating the hair dye therein, and provided with an outlet tube 4a (see Fig. 7) protruding from an end of the cartridge 4. The cartridge 4 is configured such that when a resilient part around the outlet tube 4a or the outlet tube 4a itself is axially pressed, the pressurized fluid component or fluid agent will be sprayed out of the cartridge 4 via the outlet tube 4a. Therefore, the resilient part can be regarded as an activation part of the cartridge 4 for selectively discharging the pressurized fluid component or fluid agent therefrom. In an alternative embodiment, the resilient part or the activation part of the cartridge 4 can be the outlet tube 4a itself. In this case, when the outlet tube 4a is axially pressed, the pressurized fluid component or fluid agent will be sprayed out of the cartridge 4 via the outlet tube 4a. When the two cartridges 4 are connected to the mixing head 3 in place, their outlet tubes 4a can be exposed in the mixing head 3.
[0040] Fig. 2 schematically illustrates the mixing head 3 in an exploded and perspective view. As shown, the mixing head 3 generally comprises a body 1. The body 1 is formed or defined with a central hollow space in which a seat 35 is slidably receivable. As shown by Fig. 2, the central hollow space is surrounded by a circumferential wall 1a of the body 1. The circumferential wall 1a of the body 1 is accessible by a user when the entire mixer 100 is assembled in place. The circumferential wall 1a is formed with a gripping zone 12 on its exposure face; especially on its opposite faces (only one being visible in Fig. 2) respectively. For instance, the gripping zone 12 is defined by a rectangle-shaped wall part which is cut from the major portion of the circumferential wall 1a by a gap and is connected to the same at opposite points only. Besides, in the gripping zone 12, several (three, as shown) straight ridges are also formed to protrude from an exposure face of the gripping zone 12 to facilitate the user gripping the mixing head 3. Besides, a first notch 1c and a second notch 1d are formed in the circumferential wall 1a of the body 1 of the mixing head 3. The first notch 1c is sized larger than the second notch 1d. The first notch 1c is configured to leave a space for containing a continent part of the mixing head 3 which will be explained below. The second notch 1d is configured to leave a space allowing movement of another continent part of the mixing head 3 which will be explained below.
[0041] According to the embodiment as shown, a base 2 of the mixing head 3 is connectable to, for example insertable into, the body 1 of the mixing head 3 longitudinally opposite to the seat 35. The body 1 of the mixing head 3 is configured such that when the base 2 is inserted into the body 1, the base 2 will be in the central hollow space of the body 1 and thus hidden by the body 1, thus contributing to aesthetic appearance of the assembled mixer 100. That is to say, the base 2 is configured such that when it is inserted into the body 1, it will not protrude longitudinally from the body 1.
[0042] As shown by Figs. 2 and 3, the base 2 is integrally formed with two annular parts 22 which are spaced from each other. It can be seen that the base 2 in Fig. 2 is shown in an angle of view different than Fig. 3. An opening 21 is formed between the two annular parts 22 in the base 2. The two annular parts 22 and the opening 21 are surrounded by a circumferential wall 26 of the base 2. In a hollow interior of the base 2 defined by the circumferential wall 26, with respect to each annular part 22, there are two opposite curved wings 23 extending from the circumferential wall 26. Therefore, four curved wings 23 are shown in Fig. 3 for example. Two opposite curved wings 23 and a part of the circumferential wall 26 therebetween partially surround a respective annular part 22. Additionally, a partial circumferential slot 24 is formed in the two opposite curved wings 23 and the part of the circumferential wall 26 therebetween to releasably receive an end edge of a respective cartridge 4. As shown, the base 2 is formed with two opposite lugs 25 on the circumferential wall 26, only one of which is visible in Fig. 2. Correspondingly, two opposite slots 11 (only one being visible in Fig. 2) are formed in the wall 1a of the body 1 of the mixing head 3, especially in the gripping zone 12 of the body 1 such that when the base 2 is inserted in the body 1, the two opposite lugs 25 can be releasably held in the two opposite slots 11 respectively. In this way, the base 2 can be secured in the body 1 in place. In an additional embodiment, the mixer may comprise a cartridge receiving compartment (not shown) which is releasably connected to the mixing head 3. For instance, the cartridge receiving compartment is configured to be partially insertable into the body 1 of the mixing head 3. The cartridge receiving compartment is substantially shaped as a double-hollow cylinder, especially a side-by-side double-hollow cylinder such that two cartridges 4 can be removably installed in the cartridge receiving compartment side-by-side. When the cartridge receiving compartment is inserted in the mixing head 3, the cartridges 4 in the cartridge receiving compartment can be naturally connected to the base 2 of the mixing head 3. This design of the cartridge receiving compartment will also contribute to aesthetic appearance of the assembled mixer.
[0043] As shown by Figs. 2 and 4, the seat 35 comprises a basin part 353 having a supporting side and an open side longitudinally opposing the supporting side. The seat 35 also comprises two tubular parts 351 (only one being visible in Fig. 2) protruding longitudinally from the supporting side of the basin part 353, and a bucket part 354 between the two tubular parts 351 and also protruding longitudinally from the supporting side of the basin part 353. As shown, the seat 35 has a circumferential wall 35a which together with the supporting side defines a hollow interior space for accommodating a mixing member 36 of the mixer 100 explained later. The basin part 353, the tubular parts 351, and the bucket part 354 are integrally formed with each other. The seat 35 is configured to be slidably installed in the central hollow space of the body 1. For this purpose, there are several straight ribs 35b longitudinally formed on an outer surface of the wall 35a of the seat 35 which can be configured to cooperate with straight grooves (not visible) formed in an inner surface of the wall 1a of the body 1 facing the seat 35. In this way, the seat 35 can be guided to be slidable in the body 1. Each of the tubular pars 351 is configured to define a channel 31.
[0044] The bucket part 354 is formed with a proximal open end and a distal closed end longitudinally opposite to the proximal open end. The proximal open end of the bucket part 354 is connected to the supporting side of the basin part 353. Between the proximal open end and the distal closed end, the bucket part 354 defines a reception hollow space comprised of two cylinder-shaped hollow spaces 33 and a rectangular-cube shaped hollow space 352 in fluid communication between the two cylinder-shaped hollow spaces 33. The reception hollow space is configured to extend along or substantially parallel to a longitudinal direction of the mixer 100. As shown in Fig. 4, the channels 31 of the tubular parts 351 are at both sides of the reception hollow space of the bucket part 354 respectively, and spaced from the reception hollow space by the same distance. In other words, measured along the lateral direction of the mixer 100, the bucket part 354 is just in the middle position between the two tubular parts 351. Between each channel 31 and the reception hollow space, a connection groove 35c is formed by being recessed from the supporting side of the basin part 353 such that the connection groove 35c is in fluid communication with both of only one cylinder-shaped hollow space 33 and the rectangular-cube shaped hollow space 352. It can be seen that two connection grooves 35c for the channels 31 are formed as connection channels to be in fluid communication with only one of the cylinder-shaped hollow spaces 33at the same time. Therefore, the cylinder-shaped hollow space 33 (the upper one in Fig. 4) in fluid communication with both of the channels 31 directly via the connection grooves 35c can be regarded as an upstream cylinder-shaped hollow space, and the other cylinder-shaped hollow space 33 can be regarded as a downstream cylinder-shaped hollow space.
[0045] As shown by Figs. 2 and 5, the mixing member 36 has a proximal open end 363 and a distal end 362 longitudinally opposite to the proximal open end. Between the proximal open end 363 and the distal end 362, a circumferential wall 364 of the mixing member 36 surrounds a hollow space. An insertion part 361 is formed on the distal end 362 such that it protrudes longitudinally from the distal end 362. The insertion part 361 has a cross-section complementary to that of the rectangular-cube shaped hollow space 352 and slightly larger than the same. The mixing member 36 is configured such that when it is inserted into the hollow interior space of the seat 35 in place, the distal end 362 is in fluid-tight contact with the supporting side of the seat 35 and each channel 31 is in fluid communication with the upstream hollow space 33 via the respective connection groove 35c. In the meanwhile, the insertion part 361 can be inserted into the rectangular-cube shaped hollow space 352 in an interference fit manner. However, the insertion part 361 is longitudinally shorter than the rectangular-cube shaped hollow space 352 such that when it is inserted in the rectangular-cube shaped hollow space 352, the two cylinder-shaped hollow spaces 33 are isolated from each other by the insertion part 361 except at a fluid communication location 351a (see Fig. 9) left at or adjacent to the distal closed end of the bucket part 354 by the length difference between the rectangular-cube shaped hollow space 352 and the insertion part 361.
[0046] In the hollow space of the mixing member 36, a hollow cylinder part 366 is formed onto the circumferential wall 364 of the mixing member 36. The hollow cylinder part 366 has an inlet opening 366a at the distal end 362 of the mixing member 36. When the mixing member 36 is inserted in the seat 35 in place, the inlet opening 366a longitudinally aligns with the downstream hollow space 33. The inlet opening 366a is at one end of the hollow cylinder part 366 and the other end thereof is closed. At or adjacent to the proximal open end 363 and the closed end of the hollow cylinder part 366, an outlet opening 366b is formed in the circumferential wall 364 of the mixing member 36 to be in fluid communication with an hollow interior space of the hollow cylinder part 366. The hollow interior space of the hollow cylinder part 366 is formed to have a cross-section identical to that of the downstream hollow spaces 33.
[0047] When the mixing member 36 is being inserted into the seat 35, a shorter mixing rod 371 can be inserted into the upstream hollow space 33 and a longer mixing rod 372 can be inserted into the downstream hollow 31. In an embodiment of the present disclosure, the shorter mixing rod 371 is substantially identical to the upstream hollow space 33 in length, and the longer mixing rod 372 is substantially identically to the downstream hollow space 33 plus the hollow cylinder part 366 in length. In this way, a mixing pathway is formed between the seat 35 and the mixing member 36. The mixing pathway is substantially at a plane perpendicular to the lateral direction of the mixer 100, especially between the two tubular parts 351 of the seat 35. The mixing pathway is generally comprised of an upstream mixing pathway branch and a downstream pathway branch longer than the upstream mixing pathway branch. The upstream mixing pathway branch is constituted by the upstream hollow space 33 of the seat 35 when the mixing member 36 is inserted in the seat 35 in place. The downstream pathway branch is constituted by the downstream hollow space 33 and the hollow interior space of the hollow cylinder part 366, which align with each other, when the mixing member 36 is inserted in the seat 35. The upstream mixing pathway branch is connected to the downstream mixing pathway branch only at the fluid communication location 351a of the seat 35 when the mixing member 36 is inserted in the seat 35 in place. The upstream mixing pathway branch and the downstream mixing pathway branch are both straight and parallel to each other.
[0048] Each of the mixing rods 371 and 372 has a plurality of petals which extend radially outwards from a central shaft of the mixing rod. Those petals are angled relative to the central shaft, longitudinally spaced from each other along the central shaft, and rotated relative to each other about the central shaft by identical or different angles such that they are distributed in an alternate reverse spiral or other suitable regular or even irregular manner. For example, the shorter mixing rod 371 can be supported in the hollow space 33 of the upstream mixing pathway by its petals, and the longer mixing rod 372 can be supported in the downstream hollow space 33 and the hollow interior space of the hollow cylinder part 366 by its petals. In this way, when fluid components or fluid agents are flowing through the mixing pathway, the fluid components or fluid agents will be continuously stirred or mixed by the petals of the mixing rods 371 and 372 although the mixing rods may be stationary in the mixing pathway.
[0049] In order to guarantee the fluid-tight contact between the distal end 362 and the supporting side of the seat 35 such that any fluid components or fluid agents in-fed from the channels 31 of the seat 35 can flow into the upstream mixing pathway or the upstream hollow space 33 of the seat 35 through the respective connection groove 35c only, a continuous ridge 367 is formed on the distal end 362 of the mixing member 36 to surround the insertion part 361 and the inlet opening 366a such that the continuous ridge 367 can also completely surround the hollow spaces 33 and the connection grooves 35c when the mixing member 36 is inserted in the seat 35 in place. As a force will be longitudinally applied between the supporting side of the seat 35 and the distal end 362 of the mixing member 36 to secure the mixing member 36 in the seat 35 in place, the annular continuous ridge 367 will be pressed and slightly deformed to provide a fluid-proof effect for the hollow spaces 33, the connection grooves 35c and the inlet opening 366a of the hollow cylinder part 366.
[0050] As shown by Figs. 2, 7 and 8, a discharge member 38 can be releasably installed onto the seat 35 to cover its proximal open end. There is a step 365 formed in the circumferential wall 364 of the mixing member 36, such that when the discharge member 38 is installed onto the seat 35, a circumferential wall of the discharge member 38 can be partially inserted between the circumferential wall 35a of the seat 35 and the circumferential wall 364 of the mixing member 36 and stopped by the step 365. This will improve fluid-tightness therebetween. The discharge member 38 is formed with a spray port 32 which is for example in the form of a tube. When the discharge member 38 is installed onto the seat 35, the spray port 32 aligns with the outlet opening 366b of the mixing member 36.
[0051] It is conceivable by a person skilled in the art that the seat 35, the mixing member 36 and the discharge member 38 can be secured to each other by any suitable mechanical means, for example bonding or ultrasonic welding, to ensure fluid-tightness therebetween. In this case, the seat 35, the mixing member 36, the mixing rods 371 and 372, and the discharge member 38 can be regarded to constitute a mixing assembly in which the mixing pathway is provided. The mixing assembly is selectively slidable in the body 1 of the mixing head 3 between a first state and a second state.
[0052] As shown by Figs. 7 and 8, the tubular parts 351 of the seat 35 are configured to receive the outlet tubes 4a of the cartridges 4 when they are installed into the base 2. In the illustrated embodiment, the outlet tubes 4a are used as the resilient or activation parts of the cartridges 4. In the first state of the mixing assembly, the outlet tubes 4a of the cartridges 4 are not pressed and thus pressurized fluid components or fluid agents are reliably stored in the cartridges 4 respectively. In the second state of the mixing assembly, the outlet tubes 4a of the cartridges 4 are pressed by the tubular parts 351 such that the pressurized fluid components or fluid agents can be discharged out of the cartridges 4 into the channels 31 of the seat 35. In this case, as shown by Fig. 9, the pressurized fluid components or fluid agents will flow first through the upstream mixing pathway branch, then though the downstream pathway branch, and finally exit at the outlet opening 366b. During this, the fluid components or fluid agents will be continuously stirred or mixed by the petals of the mixing rods 371 and 372 although the mixing rods may be stationary in the mixing pathway. Finally, the well mixed fluid components or fluid agents as a final product can be sprayed out of the spray port 32 for direct usage, such as hair coloration.
[0053] As shown by Figs. 2 and 6, a cover 5 can be installed in the body 1 of the mixing head 3 longitudinally opposing the base 2. The cover 5 is formed with several tabs 53 (for example four, as shown by Fig. 9) which are distributed along an outer circumferential edge of the cover 5. Those tabs 53 are configured to be snapped into the body 1 of the mixing head 3, especially into an opening edge of the body 1 of the mixing head 3 such that an exposure side of the cover 5 flushes with the opening edge of the body 1, resulting in both securing of the cover 5 relative to the body 1 and aesthetic appearance of the assembled mixer. The cover 5 is integrally formed with a cantilever part 51 which is accessible from the exposure side of the cover 5 and is configured to contact the discharge member 38 when the cover 5 is installed in the body 1 of the mixing head 3. In an alternative embodiment, the cantilever part 51 can be formed with two or more bulges 54, which are spaced from each other, such that the cover 5 is in contact with the discharge member 38 only via the bulges 54 when the cover 5 is installed in the body 1 of the mixing head 3. The cantilever part 51 is integrally formed with a button part 52 which is in the second notch 1d of the body 1 when the cover 5 is installed in the body 1 of the mixing head 3. The second notch 1d is sized that when the button part 52 is pressed, the button part 52 is freely movable in the second notch 1d. A groove-shaped shelter part 55 is formed in the cover 5 opposing the button part 52 and is configured to be located in the first notch 1c when the cover 5 is installed in the body 1 of the mixing head 3, not affecting protrusion of the spray port 32 from the body 1 of the mixing head 3. The existence of the groove-shaped shelter part 55 will visually conceal the majority portion of the discharge member 38 and / or the basin part 353, thus contributing to aesthetic appearance of the assembled mixer 100.
[0054] In the assembled mixer 100, the seat 35 of the mixing assembly is slidable in the body 1 of the mixing head. The first notch 1c of the body 1 is sized such that the spray port 32 of the discharge member 38 can be freely moved in the first notch 1c when the mixer 100 has been assembled. Therefore, in the assembled mixer 100, when the cantilever part 51 or the button part 52 is not pressed, the mixing assembly is in its first state. As the cantilever part 51 or the button part 52 is pressed by a user, it will drive the mixing assembly via the discharge member 38 to slide from the first state to the second state. With the cantilever part 51 or the button part 52 being pressed, the mixing assembly can be held in its second state during which the pressurized fluid components or fluid agents can be discharged out of the cartridges 4 due to the face that the resilient or activation parts thereof are pressed by the tubes 371 of the seat 35, and the discharged fluid components or fluid agents will flow through the upstream and downstream mixing pathway branches sequentially and be stirred or mixed with each other by the mixing rods 371 and 372 arranged therein such that the well stirred or mixed fluid components or fluid agents can be finally sprayed from the spray port 32. When the cantilever part 51 or the button part 52 is released, the resilient or activation parts are also released such that the pressurized fluid components or fluid agents are prevented from discharging out of the cartridges 4 respectively and thus under the action of the resilient or activation parts the mixing assembly is able to return to its first state. According to the embodiment of the present disclosure, as the connection grooves 35c are identical to each other in length, different fluid components or fluid agents can be fed into the upstream mixing pathway branch from the channels 31 at the same time in the mixing assembly, thus contributing to even mixing of the fluid components or fluid agents.
[0055] In a preferred embodiment, the discharge member 38 is formed with receptacles 381 on a side thereof facing the cantilever part 51 of the cover 5. The receptacles 381 are configure to hold the bulges 54 respectively, to reinforce coupling between the discharge member 38 and the cover 5. In a preferred embodiment, the bucket part 354 is configured to be inserted through the opening 21 of the base 2. This will enable the bucket part 354 to have an extended length, thus resulting in maximizing the mixing pathway's length. In an alternative embodiment, the connection grooves 35c can be provided in the distal end 362 of the mixing member 36. Therefore, when the mixing member 36 is inserted in the basin part 353 of the seat 35 such that the distal end 362 is in fluid-tight contact with the supporting side of the basin part 353, the connection grooves 35c can be as connection channels between the mixing member 36 and the seat 35 to fluidly connect the cylinder-shaped hollow spaces 33 of the tubular parts 351 with the upstream mixing pathway branch only.
[0056] Although some specific embodiments and / or examples of the present disclosure are described here, they are given for illustrative purposes only and cannot be deemed to constrain the scope of the present disclosure in any way. Furthermore, it should be understood by a skilled person in the art that the embodiments and / or examples described here can be combined with each other. Without departing from the spirit and scope of the present disclosure, various replacements, modifications, and alternations can be carried out.
Claims
1.A mixer (100) for fluid components, comprising:a mixing head (3) having a body (1) and configured to releasably receive at least two cartridges (4) for storing different pressurized fluid components therein; anda mixing assembly slidably installed in the body (1) of the mixing head (3) , wherein a mixing pathway is defined in the mixing assembly at a plane substantially perpendicular to a lateral direction of the mixing assembly, the mixing pathway comprises an upstream mixing pathway branch and a downstream mixing pathway branch, a mixing rod for mixing fluid components is arranged in each of the upstream and downstream mixing pathway branches, and the mixing assembly is configured to be longitudinally slid between a first state, in which fluid components to be mixed are prevented from flowing through the mixing pathway from the cartridges (4) , and a second state, in which fluid components to be mixed are allowed to flow through the mixing pathway.2.The mixer for fluid components as recited in claim 1, wherein the mixing assembly comprises a seat (35) slidable in the body (1) of the mixing head (3) , a mixing member (36) at least partially inserted in a basin part (353) of the seat (35) , and a discharge member (38) at least partially inserted between the mixing member (36) and the basin part (353) , and the upper mixing pathway branch is defined in the basin part (353) only and the downstream mixing pathway branch is defined in both of the basin part (353) and the discharge member (38) .3.The mixer for fluid components as recited in claim 1 or 2, wherein each mixing rod has a central shaft and a plurality of petals extending radially outwards therefrom, longitudinally spaced from each other along the central shaft, and rotated relative to each other about the shaft by identical or different angles in alternate reverse spiral manner such that fluid components, when passing through them, will be mixed with each other.4.The mixer for fluid components as recited in claim 3, wherein the seat (35) comprises two tubular tubes (351) and a bucket part (354) all protruding longitudinally from a supporting side of the basin part (353) , the bucket part (354) is between the two tubular tubes (351) , the upstream mixing pathway branch and a portion of the downstream mixing pathway is defined in the bucket part (354) , the tubular tubes (351) are configured to receive the pressurized fluid components from the cartridges (4) in the second state of the mixing assembly.5.The mixer for fluid components as recited in claim 4, wherein the mixing member (36) comprises an insertion part (361) formed on a distal end (362) thereof, the insertion part (361) is inserted in the bucket part (354) to form two cylinder-shaped hollow spaces (33) , one of which is configured to form the upstream mixing pathway branch and the other of which is configured to form said portion of the downstream mixing pathway branch, the insertion part (361) is longitudinally shorter than the bucket part (354) such that when the distal end (362) of the mixing member (36) is in fluid-tight contact with the supporting side of the basin part (353) , a fluid communication location (351a) is left at a distal closed end of the bucket part (354) where the upstream mixing pathway branch and said portion of the downstream mixing pathway branch are connected to each other by the fluid communication location (351a) .6.The mixer for fluid components as recited in claim 5, wherein between the distal end (362) of the mixing member (36) and the supporting side of the basin part (353) , two connection channels are defined to fluidly connect the two cylinder-shaped hollow spaces (33) respectively with the upstream mixing pathway branch only.7.The mixer for fluid components as recited in claim 6, wherein the two connection channels are substantially identical to each other in length.8.The mixer for fluid components as recited in claim 7, wherein the mixing member (36) is formed with a hollow cylinder part (366) which aligns with the respective cylinder-shaped hollow space (33) to define the downstream mixing pathway branch when the mixing member (36) is inserted in the seat (35) .9.The mixer for fluid components as recited in claim 8, wherein the insertion part (361) is inserted in the bucket part (354) in an interference fit manner.10.The mixer for fluid components as recited in claim 9, wherein the discharge member (38) is provided with a spray port (32) configured to protrude from the body (1) of the mixing head (3) and in fluid communication with the mixing pathway.11.The mixer for fluid components as recited in claim 10, wherein a cover (5) is installed in the body (1) of the mixing head (3) and is provided with a cantilever part (51) to contact the discharge member (38) of the mixing assembly, and the mixing assembly can be slid from the first state to the second state by pressing the cantilever part (51) .12.The mixer for fluid components as recited in claim 11, wherein the cantilever part (51) is formed with several bulges (54) spaced from each other, such that the cover (5) is in contact with the discharge member (38) via the bulges (54) only.13.The mixer for fluid components as recited in claim 12, wherein the mixing head (3) is provided with a base (2) releasably connected to the body (1) longitudinally opposite to the cover (5) , and configured to receive the cartridges (4) .14.The mixer for fluid components as recited in claim 13, wherein it further comprises a cartridge receiving compartment releasably connected to the body (1) of the mixing head (3) , in which cartridge receiving compartment the cartridges (4) are releasably installable.15.The mixer for fluid components as recited in claim 14, wherein the tubular tubes (351) of the seat (35) are configure to contact the respective cartridges (4) in the base (2) such that in the second state of the mixing assembly the tubular tubes (351) of the seat (35) are driven to longitudinally press the respective cartridges (4) such that the pressurized fluid components can be discharged from the cartridges (4) into the tubular tubes (351) .16.The mixer for fluid components as recited in claim 15, wherein the tubular tubes (351) of the seat (35) are arranged side-by-side in the lateral direction of the mixing assembly.17.The mixer for fluid components as recited in any one of claims 1 to 16, wherein the mixer is configured to generate a hair dye by mixing two fluid components.