Fluid dispenser

Abstract

The present invention discloses a fluid distribution device comprising a storage assembly, a matching assembly, and a replacement assembly, wherein the storage assembly stores contents; the matching assembly includes a locking mechanism; and the replacement assembly includes a first member having at least one guide projection and a second member having at least one guide groove, wherein the first member and the second member are provided coaxially, and the first member can perform axial and rotational movements relative to the second member so as to enable coupling or separation between the first member and the second member by the guide projection entering or separating from the guide groove; and the locking mechanism selectively restricts relative axial movement between the first member and the second member. The present invention ensures that the replacement of the storage assembly is easy and that contents do not spill or overflow during the replacement process, effectively prevents accidental touching, and prevents the storage assembly from being unexpectedly separated during use.

Description

Technology Field

[0001] The present invention relates to the field of fluid product packaging technology, and specifically to a fluid distribution device. Background Technology

[0002] A distribution device refers to a device used for distribution and discharge; among these, a fluid distribution device is a tool primarily used for fluid distribution and discharge. A fluid distribution device generally includes a storage assembly and a distribution mechanism, and pumps and valves are common distribution mechanisms. Since distribution mechanisms have a relatively long lifespan, conventional technology is generally designed to allow the storage assembly to be disassembled and replaced. When the material liquid is completely consumed, the empty storage assembly is disassembled, and a new storage assembly filled with material liquid is assembled into the distribution mechanism to allow for continued use.

[0003] In conventional technology, to implement the connection or disassembly of a storage assembly, detachment is generally achieved using a buckle connection method between the distribution mechanism and the storage assembly; however, the existing buckle connection replacement method has several disadvantages.

[0004] Buckle connections require "alignment" during replacement and assembly, which is not convenient and can cause the storage assembly to be unexpectedly detached due to accidental touch. Generally, when assembling a buckle connection, the relative position between the storage assembly and the distribution mechanism must be adjusted so that the buckles can be aligned and joined. This "alignment" process makes assembly inconvenient and reduces consumer satisfaction; although the buckle can be detached with a single button operation, accidental touch can easily cause the storage assembly to detach unexpectedly, affecting normal use.

[0005] In addition, there is a problem where the solution inside the storage assembly easily spills or overflows during the replacement process. The problem to be solved

[0006] Considering the disadvantages of the prior art mentioned above, the present invention provides a fluid distribution device comprising a storage assembly, a replacement assembly, and a matching assembly. means of solving the problem

[0007] The above storage assembly stores contents;

[0008] The above-described replacement assembly comprises a first member having at least one guide projection and a second member having at least one guide groove, wherein the first member and the second member are provided coaxially, and the first member can perform axial and rotational movements with respect to the second member so as to enable coupling or separation between the first member and the second member by the guide projection entering or separating from the guide groove; wherein one of the first member and the second member is coupled to the storage assembly;

[0009] The above-described matching assembly includes a locking mechanism capable of selectively restricting relative movement in the axial direction between the first member and the second member.

[0010] In the fluid distribution device described above, the storage assembly includes an inner container that stores the contents therein, and a neck portion is formed on the upper part of the inner container; the neck portion of the inner container is coupled to the first member or the second member;

[0011] The above locking mechanism includes a first locking member connected to at least one relief portion and a second locking member connected to at least one limit portion;

[0012] The first end of the relief portion is connected to a first locking member, the second end of the relief portion is a free end, and a relief gap is provided between the second end of the relief portion and the side wall of the first locking member;

[0013] The second locking member is movable relative to the first locking member so that the limit portion enters the relief gap or separates from the relief gap;

[0014] When the limit portion is separated from the relief gap, the second end of the relief portion can run out due to the action of an external force, providing a space for movement for relative movement between the first member and the second member; when the limit portion enters the relief gap, the second end of the limit portion cannot run out due to the action of an external force and thus restricts relative movement between the first member and the second member.

[0015] In the fluid distribution device described above, a first rotating body is formed with either the first member or the second member, and a second rotating body is formed with the other of the first locking member and the second locking member. When the second rotating body rotates in a first direction, the limit member may enter the relief gap and restrict the second end of the relief member from running out in a direction away from the inner container.

[0016] When the second rotating body rotates in the second direction, the limit part can be separated from the relief gap.

[0017] In the fluid distribution device described above, the matching assembly includes an external container, and the member among the first member and the second member that is not coupled to the storage assembly is connected to the external container, wherein the connection includes a direct connection or an indirect connection, and in the case of an indirect connection, the external container may be connected through other members.

[0018] A replacement opening is provided at the bottom of the outer container, and the inner container can be inserted into the outer container or separated from the outer container through the replacement opening.

[0019] In the above-described fluid distribution device, the matching assembly includes a distribution mechanism, and the distribution mechanism is fixed to the outer container, wherein the fixing includes direct fixing or indirect fixing, and in the case of indirect fixing, the distribution mechanism can be fixed to the outer container through other members; the distribution mechanism is detachably coupled to the storage assembly through the replacement assembly, and the distribution mechanism is used to discharge contents inside the storage assembly.

[0020] In the fluid distribution device described above, the distribution mechanism includes a pump body, and when the distribution mechanism and the storage assembly are combined, at least a portion of the pump body can be received inside the neck portion of the inner container;

[0021] The above-described matching assembly further includes an elastic mechanism, the elastic mechanism is sleeved to the outside of the pump body, and the elastic mechanism can apply a force to push the inner container in the direction of the replacement opening to the mechanism connected to the inner container among the first member and the second member.

[0022] In the fluid distribution device described above, the guide groove comprises a cam slide rail and a lock slide rail, wherein the cam slide rail comprises a first slide rail and a second slide rail, wherein a first bottom dead center is provided in the lower concave portion of the first slide rail and a second bottom dead center is provided in the lower concave portion of the second slide rail, and wherein the first bottom dead center and the second bottom dead center are each the lowest points of the lower concave portion of the first slide rail and the lower concave portion of the second slide rail, respectively, and the lock slide rail is provided above the first bottom dead center and the second bottom dead center, and a lock top dead center is provided in the portion protruding upward from the lock slide rail;

[0023] Each of the above guide projections can slide along the guide groove by the action of a first axial thrust and a second axial thrust, wherein the first axial thrust is a force provided by the elastic mechanism that pushes the inner container toward the replacement opening, and the second axial thrust is a force acting on the bottom of the inner container that pushes the inner container toward the interior of the outer container.

[0024] In the fluid distribution device described above, when the first member and the second member are separated, the elastic mechanism may be compressed by the action of the second axial thrust so that the guide projection enters the first slide rail and slides along the first slide rail to the first bottom dead center; when the compression of the elastic mechanism is released, the first axial thrust is generated so that the guide projection enters the locking slide rail and is fixed at the locking top dead center, thereby coupling the first member and the second member;

[0025] When the first member and the second member are combined, the elastic mechanism is compressed by the action of the second axial thrust so that the guide projection enters the second slide rail and slides along the second slide rail to the second bottom dead center; when the compression of the elastic mechanism is released, the first axial thrust is generated so that the guide projection slides along the second slide rail and separates from the guide groove, thereby separating the first member and the second member.

[0026] In the fluid distribution device described above, the guide groove is provided with at least one inclined rail, and the inclined rail allows the guide projection to enter the cam slide rail.

[0027] In the fluid distribution device described above, the first member is an annular body, the first member is rotatably sleeved to the outside of the second member, and the second member is sleeved to the neck portion of the inner container and coupled to the neck portion of the inner container.

[0028] In the fluid distribution device described above, the storage assembly further comprises a sealing member, the neck portion of the inner container is provided with a discharge passage, the upper portion of the neck portion of the inner container is provided with a first annular edge, the sealing member seals the discharge passage, the sealing member comprises a perforable guide film, the guide film is provided in the neck portion of the inner container and extends in a direction away from the first annular edge;

[0029] The above-described matching assembly further includes a perforating member penetrating the guide film, and the perforating member and the distribution mechanism are coupled to each other, and the perforating member includes a first sheath portion and a perforating portion provided at the lower end of the first sheath portion.

[0030] In the fluid distribution device described above, the sealing member further includes a second sheath portion extending downward along the axial direction of the discharge passage from the first annular edge, the guide film is connected to the lower end of the second sheath portion, the second sheath portion is hermetically connected to the inner wall of the discharge passage, and the first sheath portion and the inner wall of the second sheath portion are hermetically connected.

[0031] In the fluid distribution device described above, the locking mechanism comprises a first locking member connected to at least one first pressurizing part and a third locking member connected to at least one second pressurizing part, wherein each of the first locking member and the third locking member is connected to the first member and the second member;

[0032] The first end of the first pressure member is connected to the first locking member, the second end of the first pressure member can be in contact with the second pressure member, and avoidance spaces are provided on both sides of the second pressure member;

[0033] When the first locking member rotates relative to the third locking member, the first pressing member may move to the upper part of the second pressing member or the avoidance space according to the rotation; when the first pressing member moves to the upper part of the second pressing member, the second pressing member restricts the first pressing member from moving its position in the axial direction due to the action of an external force, and further restricts the relative movement in the axial direction between the first locking member and the third locking member, thereby restricting the relative movement in the axial direction between the connected first member and the second member; when the first pressing member moves to the upper part of the avoidance space, the avoidance space provides a movement space for the axial movement of the first pressing member, and further allows relative movement in the axial direction to occur between the first member and the second member. Effects of the invention

[0034] 1. By pushing the bottom surface of the inner container upward, the inner container can be connected to or disconnected from the matching assembly, allowing for replacement of the inner container; since replacement is convenient and operation is simple, consumer satisfaction with the product is excellent;

[0035] 2. The locking structure can be rotated to switch between the locked and unlocked states, and in the locked state, the inner container cannot be replaced even if pushed upward, thereby preventing touch errors;

[0036] 3. During replacement work. The contents of the inner container can be effectively prevented from spilling or overflowing, and a sealing member is provided at the opening of the inner container so that after assembling the inner container and the matching assembly, the sealing member can be penetrated by the perforation member of the matching assembly.

[0037] In the following, the concept, specific structure, and technical effects of the present invention are explained in detail with reference to the attached drawings so that the purpose, features, and effects of the present invention can be fully understood. Brief explanation of the drawing

[0038] Figure 1 is an exploded view of the fluid distribution device of Example 1 of the present invention. FIG. 2 is a schematic structural diagram of the fluid distribution device of Example 1 of the present invention when it is in a locked state. Figure 3 is a structural cross-sectional view of part AA of Figure 2. FIG. 4 is a perspective view of the locking mechanism of the fluid distribution device of Example 1 of the present invention. FIG. 5 is a perspective view of the inner container and replacement assembly of the fluid distribution device of Example 1 of the present invention. FIG. 6 is a schematic structural diagram of the fluid distribution device of Example 1 of the present invention when it is in an unlocked state. Figure 7 is a structural cross-sectional view of the BB portion of Figure 6. FIG. 8 is a schematic structural diagram of the fluid distribution device of Example 2 of the present invention. Figure 9 is a structural cross-sectional view of the CC portion of Figure 8. FIG. 10 is a perspective view of the locking mechanism of the fluid distribution device of Example 2 of the present invention. FIG. 11 is a schematic structural diagram of the fluid distribution device of Example 3 of the present invention when it is in a locked state. FIG. 12 is a schematic structural diagram of the fluid distribution device of Example 3 of the present invention when it is in an unlocked state. FIG. 13 is a perspective view of the locking mechanism of the fluid distribution device of Example 3 of the present invention. Specific details for implementing the invention

[0039] The present invention is described in more detail with specific drawings to facilitate an easy understanding of the technical means, creative features, purpose, and effects of the invention. However, the present invention is not limited to the following embodiments.

[0040] Example 1

[0041] As illustrated in FIGS. 1 to 7, the present invention discloses a fluid distribution device, and as illustrated in FIGS. 1 and 2, the fluid distribution device comprises a storage assembly (1), a matching assembly (2), and a replacement assembly (3). The replacement assembly (3) comprises a first member (31) and a second member (32), wherein the second member (32) is coupled to the storage assembly (1) and the first member (31) is coupled to the matching assembly (2).

[0042] As illustrated in FIG. 7, the storage assembly (1) includes an inner container (11) and a sealing member (12); a second member (32) is sleeved to the outside of the neck portion of the inner container (11), and the sealing member (12) is provided inside the neck portion of the inner container (11), and a discharge passage (111) is provided in the neck portion of the inner container (11), and a first annular edge (1111) is provided at the upper portion of the neck portion of the inner container (11), and the sealing member (12) seals the discharge passage (111).

[0043] Here, the sealing member (12) includes a second sheath portion (121) and a perforable guide film (122). Here, the second sheath portion (121) extends downward from the first annular edge (1111) along the axial direction of the discharge passage (111) to the lower part of the discharge passage (111), the outer wall of the second sheath portion (121) is hermetically connected to the inner wall of the discharge passage (111), and the guide film (122) is connected to the lower part of the second sheath portion (121).

[0044] Here, as illustrated in FIG. 5, a guide groove (321) is provided on the outer wall of the second member (32), and the guide groove (321) includes a cam slide rail, a locking slide rail (3213) and an inclined rail (3214), and the cam slide rail includes a first slide rail (3211) and a second slide rail (3212), a first bottom dead center (3215) is provided in the lower concave portion of the first slide rail (3211) and a second bottom dead center (3216) is provided in the lower concave portion of the second slide rail (3212), and each of the first bottom dead center (3215) and the second bottom dead center (3216) is the lowest point of the lower concave portion of the first slide rail (3211) and the lower concave portion of the second slide rail (3212); A locking slide rail (3213) is installed above the first bottom dead center (3215) and the second bottom dead center (3216), and a locking top dead center (3217) is provided at the portion protruding above the locking slide rail (3213); and an inclined rail (3214) guides the guide projection (311) to enter the first slide rail (131) when the inner container (11) and the second member (32) coupled to the inner container are inserted.

[0045] As illustrated in FIGS. 1, 2, 3, 6 and 7, the matching assembly (2) includes a distribution mechanism (21), an outer container (22), a locking mechanism (23), an elastic mechanism (24), and a perforating member (25).

[0046] The distribution mechanism (21) includes a pump body (211) and a nozzle (212), wherein the pump body (211) is located at the top of the inner container (11) and the lower part of the pump body (211) is accessible to the discharge passage (111); the nozzle (212) is located at the top of the pump and the lower part of the nozzle (212) is connected to the pump body (211) to discharge the solution.

[0047] The bottom of the outer container (22) is provided with a replacement opening (221) through which the inner container (11) can be inserted or removed, and the upper part of the outer container (22) forms a neck portion, and the outer wall of the neck portion of the outer container is provided with a mark, the mark includes a locked state mark (233) and an unlocked state mark (234), and the mark indicates that the fluid distribution device is in a locked state or an unlocked state.

[0048] The elastic mechanism (24) is sleeved to the outside of the pump body (211), and the elastic mechanism (24) can be compressed by an external force acting on the bottom of the inner container (11), and after being released from compression, a force is applied to the second member (32) to push the inner container (11) toward the replacement opening (221).

[0049] The first member (31) of the replacement assembly (3) (see FIG. 5, FIG. 6 and FIG. 7) is an annular body connected to the inner side of the neck portion of the outer container (22) and is provided coaxially with the second member (32) and is rotatably sleeved to the outer side of the second member (32), and the first member (31) is capable of axial movement and rotational movement relative to the second member (32); the first member (31) is provided with a guide projection (311), and depending on the relative movement between the first member (31) and the second member (32), the guide projection (311) may enter the guide groove (321) or separate from the guide groove (321) to enable coupling or separation between the first member (31) and the second member (32).

[0050] As illustrated in FIGS. 2, 3 and 4, the locking mechanism (23) can selectively restrict relative movement in the axial direction of the first member (31) and the second member (32), and the locking mechanism (23) includes a first locking member (231) and a second locking member (232), wherein the first locking member (231) is rotatably sleeved to the outside of the neck portion of the outer container (22) and the second locking member (232) is connected to the inside of the neck portion of the outer container (22).

[0051] A relief portion (2311) is provided in the first locking member (231), and the first end of the relief portion (2311) is connected to the first locking member (231), and the second end of the relief portion (2311) is a free end, and a relief gap (2312) is provided between the second end of the relief portion (2311) and the side wall of the first locking member (231), and the second end of the relief portion (2311) can run out according to the action of an external force to provide a movement space for relative movement between the first member (31) and the second member (32).

[0052] The second locking member (232) is provided with a limit portion (2321), and when the first locking member (231) rotates in a first direction, the limit portion (2321) enters the relief gap (2312) to prevent the second end of the relief portion (2311) from running out in a direction away from the inner container (11), thereby limiting the relative movement between the first member (31) and the second member (32); and when the first locking member (231) rotates in a second direction, the limit portion (2321) can be separated from the relief gap (2312).

[0053] The outer wall of the first locking member (231) is provided with a display window (235) (see FIG. 2 and FIG. 6), and the display mark on the outer wall of the neck portion of the outer container (22) can pass through the display window (235), and the lower cross-section of the first locking member (231) is connected to the perforating member (25).

[0054] A perforating member (25) (see FIG. 4, FIG. 6 and FIG. 7) is for penetrating a guide film (122), and the perforating member (25) includes a first sheath (251) and a perforating part (252) located at the bottom of the first sheath (251), and the outer wall of the first sheath (251) and the inner wall of the second sheath (121) are hermetically connected.

[0055] The technical solution described in the above examples is used in the following manner:

[0056] When the fluid distribution device of the present invention is in an unlocked state, the display window (235) on the outer wall of the first locking member (231) indicates an unlocked state mark (234). At this time, the limit portion (2321) of the second locking member (232) is separated from the relief gap (2312) between the second end of the relief portion (2311) and the side wall of the first locking member (231), and the second end of the relief portion (2311) is freely run-out, thereby providing a movement space for relative movement in the axial direction between the first member (31) and the second member (231).

[0057] In the unlocked state, the inner container (11) and the second member (32) coupled to the inner container can be replaced. Specifically, when disassembling, if thrust is applied in the second axial direction to push the bottom of the inner container (11) upward and push the inner container (11) into the interior of the outer container (22), the inner container (11) moves upward in the axial direction with respect to the first member (31) together with the second member (32), so that the upper end of the second member (32) and the second end of the relief portion (2311) of the first locking member (231) come into contact with each other, and the second end of the relief portion (2311) receives force in a direction away from the inner container (11), causing it to run out and provide space. When the second member (32) moves axially with respect to the first member (31), it compresses the elastic mechanism (24) upward, and at the same time, the first member rotates with respect to the second member. At this time, due to the relative movement of the first member (31) and the second member (32), the guide projection (311) of the first member (31) slides downward from the locking top dead center (3217) of the locking slide rail (3213) within the guide groove (321) to the second slide rail (3212), and continues to slide along the second slide rail (3212) to the second bottom dead center (3216). When the thrust in the second axial direction is stopped, the elastic mechanism (24) is released and provides thrust in the first axial direction that pushes the second member (32) and the inner container (11) toward the replacement opening (221). Due to the action of the first axial thrust, the guide projection (311) slides upward along the second slide rail (3212) and is separated from the guide groove (321), thereby separating the first member (31) and the second member (32). At this time, the inner container (11) and the second member coupled to the inner container (11) can be separated from the replacement opening (112).

[0058] When assembling, if thrust is applied in the second axial direction to the bottom of the inner container (11), the first member (31) and the second member (32) move axially so that the guide projection (311) of the first member (31) enters the first slide rail (3211), and at this time, the first member (31) is rotatably sleeved to the outside of the second member (32) so that the two are successfully connected; by the action of thrust in the second axial direction, the first member (31) and the second member (32) continue to perform axial movement and rotational movement so that the guide projection (311) continues to slide downward along the first slide rail (3211) to the first bottom dead center (3215). When thrust is stopped in the second axial direction, the elastic mechanism (24) is released and thrust is provided in the first axial direction so that the guide projection (311) slides upward to the locking slide rail (3213) and slides along the locking slide rail (3213) to the locking top dead center (3217), thereby causing the locking slide rail (3213) to restrict the upward sliding of the guide projection (311).

[0059] When the replacement of the inner bottle assembly is completed, the fluid distribution device can be switched to a locked state by rotating the first locking member (231) in the first direction until a locking state mark (233) is displayed on the display window (235), and at this time, the limit portion (2321) of the second locking member (232) rotates to move to the relief gap (2312), thereby restricting axial movement between the first member (31) and the second member (32).

[0060] In the locked state, the fluid distribution device can be used normally, that is, the contents stored in the inner container (11) can be discharged by pressing the nozzle (212), and the storage assembly cannot be replaced. If the bottom of the inner container (11) is pushed upward along the axial direction of the inner container (11) so that the top of the second member (32) comes into contact with the second end of the relief portion (2311) of the first locking member (231), the relief portion (2311) cannot run out in a direction away from the inner container (11) due to the action of the limit portion (2321), so that space cannot be yielded, and therefore the inner container (11) can no longer move upward together with the second member (32) to compress the elastic mechanism (24).

[0061] If the inner bottle assembly needs to be replaced again, the fluid distribution device can be switched to an unlocked state by rotating the first locking member (231) in a second direction opposite to the first direction until an unlocked state mark (234) is displayed on the display window (235).

[0063] Example 2

[0064] As illustrated in FIGS. 8, 9 and 10, in Example 2, the first locking member (231) is connected to the inner wall of the upper part of the outer container (22), and the second locking member (232) is sleeved to the outside of the first locking member (231). A display window (235) is provided on the outer wall of the second locking member, and a display mark is provided on the outer wall of the first locking member, namely, a locking state mark (233) and an unlocking state mark (234); the display mark is observable through the display window (235). The lower surface of the second locking member (232) is connected to the perforation member (25). Other configurations are the same as in Example 1.

[0065] In terms of usage, rotating the second locking member (232) in the first direction can switch the fluid distribution device to a locked state, at which time the display window on the outer wall of the second locking member (232) displays a locked state mark (233); rotating the second locking member (232) in the second direction can switch the fluid distribution device to an unlocked state, at which time the display window on the outer wall of the second locking member (232) displays an unlocked state mark (234). Other usage methods are the same as in Example 1. A preferred embodiment of the present invention has been described in detail above. A person skilled in the art should understand that various modifications and changes can be made based on the concept of the present invention without the cost of creative labor. Therefore, all technical solutions that a person skilled in the art can obtain through logical analysis, inference, or limited experimentation based on prior art based on the concept of the present invention should be included within the scope of protection determined by the claims.

[0067] Example 3

[0068] As illustrated in FIGS. 11 to 13, in Example 3, the locking mechanism (23) includes a first locking member (231) and a third locking member (236), the first locking member (231) is rotatably sleeved to the outside of the neck portion of the outer container (22), and the first member (31) and the inside of the neck portion of the outer container (22) are coupled, that is, the first locking member (231) and the first member (31) are connected. The first locking member (231) is provided with a first pressure portion (2313), and the first end of the first pressure portion (2313) is connected to the first locking member (231).

[0069] The third locking member (236) is sleeved to the outer side of the upper portion of the second member (32), and the third locking member (236) is provided with a second pressing portion (2361), the second end of the first pressing portion (2313) can be in contact with the second pressing portion (2361), and avoidance spaces (2362) are provided on both sides of the second pressing portion (2361). Other configurations are the same as in Example 1.

[0070] Regarding the method of use:

[0071] When the first locking member (231) is rotated in the first direction to switch the fluid distribution device to a locked state, the first pressurizing member (2313) is located above the second pressurizing member (2361). When the bottom of the inner container (11) is pushed upward by the mutual pressurizing action between the first pressurizing member (2313) and the second pressurizing member (2361), it is difficult for the inner container (11) and the second member (32) connected thereto to move upward, and therefore it is difficult to implement replacement by the relative movement in the axial direction between the first member (31) and the second member (32).

[0072] When the first locking member (231) is rotated in the second direction to switch the fluid distribution device to an unlocked state, the first pressurizing member (2313) is positioned at the top of the avoidance space (2362), and when the bottom of the inner container (11) is pushed upward, the inner container (11) moves upward together with the second member (32) and the third locking member (236), and the first locking member (231) moves downward relative to the third locking member (236) so that the first pressurizing member (2313) enters the avoidance space (2362), and at this time, replacement can be implemented by the relative movement in the axial direction between the first member (31) and the second member (32). Other usage methods are the same as in Example 1.

[0073] In the description of the present invention, the directional or positional relationships indicated by terms such as "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "other end" are based on the directions or positions depicted in the drawings and are intended merely to facilitate the description of the present invention; it should be understood that this does not indicate or imply that the referred device or element necessarily has a specific direction or is configured and operates in a specific direction, nor does it limit the present invention. Furthermore, the terms "first" and "second" are used solely for illustrative purposes and should not be interpreted as specifying or implying relative importance.

[0074] It should be noted that in this invention, terms such as “mounting,” “installation / sleeving installation,” “sleeving connection,” and “connection” should be interpreted in a broad sense unless otherwise explicitly defined or limited. For example, “connection” may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through a medium; and it may be an internal connection between two elements. Persons skilled in the art will understand the specific meaning of the aforementioned terms in this invention depending on the specific circumstances. Structures, proportions, sizes, etc., shown in the drawings attached to this specification are used solely to align with the content disclosed in this specification and to facilitate the understanding and reading of those familiar with the art; they are not intended to limit the implementable limitations of this invention and therefore have no substantial technical significance. Furthermore, structural changes, changes in proportional relationships, and adjustments in size fall within the scope of the technical content disclosed in this invention, provided that they do not affect the effects that can be created or the objectives that can be achieved by this invention. Explanation of the symbols

[0075] 1: Storage assembly 11: Inner container 111: Discharge passage 1111: 1st annular edge 12: Sealing member 121: Second Sheath 122: Guide Film 2: Matching assembly 21: Distribution mechanism 211: Pump body 212: Nozzle 22: Outer container 221: Replacement opening 23: Locking mechanism 231: First locking member 2311: Relief Section 2312: Relief Gap 2313: First pressurizing part 232: Second locking member 2321: Limitbu 233: Locked status mark 234: Unlocked status mark 235: Display window 236: Third locking component 2361: Second pressurization unit 2362: Evasion space 24: Elastic mechanism 25: Drilling Incomplete 251: 1st Sisbu 252: Celestial Bu 3: Replacement assembly 31: First component 311: Guide projection 32: Second Part 321: Guide Home 3211: 1st slide rail 3212: 2nd slide rail 3213: Locking slide rail 3214: Inclined rail 3215: 1st bottom dead center 3216: 2nd bottom dead center 3217: Lock Top Dead Center

Claims

Claim 1 A fluid dispensing device comprising a storage assembly, a replacement assembly, and a matching assembly, wherein the storage assembly stores contents; the replacement assembly comprises a first member having at least one guide projection and a second member having at least one guide groove, wherein the first member and the second member are provided coaxially, and the first member is capable of axial movement and rotational movement with respect to the second member so as to enable coupling or separation between the first member and the second member by the guide projection entering or separating from the guide groove; wherein one of the first member and the second member is coupled to the storage assembly; the matching assembly comprises a locking mechanism capable of selectively restricting relative movement in the axial direction between the first member and the second member, and the storage assembly comprises an inner container storing contents inside, wherein the upper portion of the inner container forms a neck portion; A fluid distribution device characterized in that the neck portion of the inner container is coupled to the first member or the second member; the first member is an annular body, the first member is rotatably provided on the outer side of the second member, and the second member is sleeved to the neck portion of the inner container and coupled to the neck portion of the inner container. Claim 2 A fluid distribution device according to claim 1, wherein the locking mechanism comprises a first locking member connected to at least one relief member and a second locking member connected to at least one limit member; wherein the first end of the relief member is connected to the first locking member, the second end of the relief member is a free end, and a relief gap is provided between the second end of the relief member and the side wall of the first locking member; wherein the second locking member is movable relative to the first locking member so that the limit member may enter the relief gap or be removed from the relief gap; wherein when the limit member is separated from the relief gap, the second end of the relief member may run out by the action of an external force and provide a space for movement for relative movement between the first member and the second member; wherein when the limit member enters the relief gap, the limit member restricts the runout of the second end of the relief member by the action of an external force, thereby restricting relative movement between the first member and the second member. Claim 3 A fluid distribution device according to claim 2, wherein a first rotating body is formed with one of the first member or the second member, and a second rotating body is formed with the other of the first locking member and the second locking member, and when the second rotating body rotates in a first direction, the limit member may enter the relief gap and restrict the second end of the relief member from running out in a direction away from the inner container; and when the second rotating body rotates in a second direction, the limit member may move and be separated from the relief gap. Claim 4 A fluid distribution device according to paragraph 2, wherein the matching assembly includes an external container, and the member among the first member and the second member that is not coupled to the storage assembly is connected to the external container, and the bottom of the external container is provided with a replacement opening, and the internal container can be inserted into the external container or separated from the external container through the replacement opening. Claim 5 A fluid distribution device according to claim 4, wherein the matching assembly includes a distribution mechanism, the distribution mechanism is fixed to the outer container, the distribution mechanism is detachably coupled to the storage assembly through the replacement assembly, and the distribution mechanism is used to discharge contents inside the storage assembly. Claim 6 A fluid distribution device according to claim 5, wherein the distribution mechanism comprises a pump body, and when the distribution mechanism and the storage assembly are combined, at least a portion of the pump body may be received inside the neck portion of the inner container; and the matching assembly further comprises an elastic mechanism, wherein the elastic mechanism is sleeved to the outside of the pump body, and the elastic mechanism is capable of applying a force to push the inner container toward the direction of the replacement opening to the mechanism connected to the inner container among the first member and the second member. Claim 7 In claim 6, the guide groove comprises a cam slide rail and a lock slide rail, wherein the cam slide rail comprises a first slide rail and a second slide rail, wherein a first bottom dead center is provided in the lower concave portion of the first slide rail and a second bottom dead center is provided in the lower concave portion of the second slide rail, and wherein the first bottom dead center and the second bottom dead center are each the lowest points of the lower concave portion of the first slide rail and the lower concave portion of the second slide rail, respectively; wherein the lock slide rail is provided above the first bottom dead center and the second bottom dead center, and a lock top dead center is provided in the portion protruding upward from the lock slide rail; and wherein each of the guide projections can slide along the guide groove by the action of a first axial thrust and a second axial thrust, wherein the first axial thrust is a force provided by the elastic mechanism that pushes the inner container toward the direction of the replacement opening, and the second axial thrust is a force acting on the bottom of the inner container that pushes the inner container toward the interior of the outer container. Fluid distribution device characterized by Claim 8 A fluid distribution device according to claim 7, wherein when the first member and the second member are separated, the elastic mechanism may be compressed by the action of the second axial thrust so that the guide projection enters the first slide rail and slides along the first slide rail to the first bottom dead center; when the compression of the elastic mechanism is released, the first axial thrust is generated so that the guide projection enters the locking slide rail and is fixed at the locking top dead center, thereby connecting the first member and the second member; and when the first member and the second member are coupled, the elastic mechanism may be compressed by the action of the second axial thrust so that the guide projection enters the second slide rail and slides along the second slide rail to the second bottom dead center; and when the compression of the elastic mechanism is released, the first axial thrust is generated so that the guide projection slides along the second slide rail and separates from the guide groove, thereby separating the first member and the second member. Claim 9 A fluid distribution device according to claim 8, wherein the guide groove is further provided with at least one inclined rail, and the inclined rail guides the guide projection to enter the cam slide rail. Claim 10 A fluid distribution device according to claim 5, wherein the storage assembly further comprises a sealing member, the neck portion of the inner container is provided with a discharge passage, the upper portion of the neck portion of the inner container is provided with a first annular edge, the sealing member seals the discharge passage, the sealing member comprises a perforable guide film, the guide film is provided in the neck portion of the inner container and extends in a direction away from the first annular edge; and the matching assembly further comprises a perforating member penetrating the guide film, the perforating member and the distribution mechanism are coupled to each other, and the perforating member comprises a first sheath portion and a perforation portion provided at the lower portion of the first sheath portion. Claim 11 A fluid distribution device according to claim 10, wherein the sealing member further comprises a second sheath portion extending downward along the axial direction of the discharge passage from the first annular edge, the guide film is connected to the lower end of the second sheath portion, the second sheath portion is hermetically connected to the inner wall of the discharge passage, and the first sheath portion and the inner wall of the second sheath portion are hermetically connected. Claim 12 In claim 1, the locking mechanism comprises a first locking member connected to at least one first pressure member and a third locking member connected to at least one second pressure member, wherein each of the first locking member and the third locking member is connected to the first member and the second member; a first end of the first pressure member is connected to the first locking member, and a second end of the first pressure member may abut the second pressure member, and an avoidance space is provided on both sides of the second pressure member; when the first locking member rotates relative to the third locking member, the first pressure member may move toward the upper part of the second pressure member or the avoidance space according to the rotation; and when the first pressure member moves toward the upper part of the second pressure member, the second pressure member restricts the first pressure member from moving its position in the axial direction due to the action of an external force. A fluid distribution device characterized in that when the first pressurizing part moves to the upper part of the avoidance space, the avoidance space provides a movement space for axial positional movement of the first pressurizing part. Claim 13 delete

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