Cleanable fluid product dispenser

Abstract

The present invention relates to the field of fluid dispensing. Disclosed is a cleanable fluid product dispenser, comprising an actuating cap and a pump body which are detachably and fixedly connected to each other, so that when the actuating cap and the pump body are separated from each other, a fluid channel of the dispenser is exposed. An outer cap in the pump body moves axially relative to a threaded cap; the threaded cap is connected to a bladder pump, the actuating cap is connected to a sealing sheet, and the sealing sheet and the bladder pump together define a metering cavity having a variable volume; the actuating cap is provided with a nozzle; the threaded cap is provided with a fluid storage cavity, and the fluid storage cavity is provided with a valve; and the bladder pump is communicated with the fluid storage cavity, and the sealing sheet is provided with a sealing member structure for controlling the opening / closing state of a channel between the bladder pump and the fluid storage cavity. After use of the product of the present invention, the actuating cap and the pump body can be disassembled, so as to expose a material channel, and the actuating cap and the pump body are cleaned, respectively, to remove residual material; and after cleaning, reassembly is convenient, and the purpose of reusing the apparatus is achieved.

Description

A cleanable fluid product dispenser TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid dispensing, and in particular to a cleanable fluid product dispenser. BACKGROUND

[0002] Document WO2009139015A1 discloses a fluid product dispenser comprising a dispensing head and a threaded cap capable of axial relative movement with respect to each other, the dispensing head comprising a metering chamber obtained inside the dispensing head and a dispensing nozzle allowing the outflow of the fluid product, the metering chamber having a containment volume which can vary between a maximum volume configuration and a minimum volume configuration when the metering chamber is isolated; the fluid product dispenser further comprises a deformable diaphragm (also known as a bladder pump) fastened to the threaded cap and a deformable disc-shaped body (also known as a sealing sheet) fastened to the dispensing head and defining the metering chamber together with the deformable diaphragm.

[0003] In use, pressing the dispensing head causes the dispensing head to slide axially with respect to the threaded cap, then the volume of the metering chamber defined by the deformable diaphragm and the deformable disc-shaped body decreases, the fluid stored therein is pressed out and flows out through the dispensing nozzle; when the pressing force is released, the metering chamber returns to the maximum volume and a negative pressure is generated, under the action of which the fluid in the fluid product container is sucked into the metering chamber.

[0004] Although the fluid product dispenser can bring a better experience in use, it is inconvenient to disassemble, clean and reassemble. When disassembling, the deformable diaphragm fixed on the threaded cap and the deformable disc-shaped body fixed on the dispensing head can be cleaned only after the threaded cap is separated from the dispensing head.

[0005] However, since the peripheral band of the deformable diaphragm has a certain assembly relationship with the circumferential inner wall of the dispensing head, the disassembly and reassembly of the threaded cap and the dispensing head will be hindered, and frequent disassembly and assembly will also affect the sealing effect between the peripheral band of the deformable diaphragm and the circumferential inner wall of the dispensing head.

[0006] With the continuous promotion of cost reduction and efficiency improvement and environmental protection concepts, the requirement for repeated use of fluid product dispensers is increasingly mentioned, but the fluid product dispenser disclosed in the above document is not suitable for repeated use. SUMMARY

[0007] In view of the problem that the fluid product dispenser in the prior art is not suitable for repeated use, the purpose of the present application is to provide a cleanable fluid product dispenser to at least partially solve the above problems.

[0008] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0009] A cleanable fluid product dispenser includes an actuating cap and a pump body removably secured to each other such that when the actuating cap is separated from the pump body, a fluid passage of the dispenser is exposed.

[0010] In some preferred embodiments, the pump body includes an outer cap, a threaded cap and a bladder pump; the threaded cap is configured to be connected to a container, the outer cap is axially slidable relative to the threaded cap, the bladder pump is secured to the threaded cap and / or the outer cap, a sealing sheet is further secured to the actuating cap, the sealing sheet and the bladder pump together define a metering chamber having a volume that varies with movement of the outer cap, and a nozzle is further provided on the actuating cap to allow fluid product to flow out of the metering chamber.

[0011] In some preferred embodiments, the threaded cap is further provided with a fluid storage chamber, the fluid storage chamber is configured with a valve for controlling the flow of fluid product from a container into the fluid storage chamber, the bladder pump is in communication with the fluid storage chamber, and a closure is further formed on the sealing sheet to control the communication state between the bladder pump and the fluid storage chamber.

[0012] In some preferred embodiments, the sealing sheet is formed with an extension extending towards the interior of the bladder pump, and the closure is formed on an end of the extension away from the actuating cap.

[0013] In some preferred embodiments, a sealing flange is formed on the extension, and the sealing flange constitutes the closure.

[0014] In some preferred embodiments, an inner top wall of the actuating cap is provided with a support column extending towards the interior of the bladder pump, a groove is formed on the extension to match the support column, and the sealing sheet is connected to the support column of the actuating cap through the groove formed on the extension.

[0015] In some preferred embodiments, one of the actuating cap and the outer cap is provided with a sealing flange, and the other is provided with a sealing groove.

[0016] In some preferred embodiments, a clamping protrusion is provided at an outer edge of an upper end of the bladder pump to prevent the bladder pump from sliding off the outer cap.

[0017] In some preferred embodiments, an opening is formed on the bladder pump to communicate with the fluid storage chamber, and a sealing flange is provided at the opening to cooperate with the sealing flange.

[0018] In some preferred embodiments, the valve includes a sealing ball and a retainer, the retainer is secured in the fluid storage chamber, the retainer is configured to limit movement of the sealing ball within a defined range, and the sealing ball is configured to seal a fluid inlet provided on the fluid storage chamber.

[0019] With the technical scheme, the beneficial effects of the present application are as follows: compared with the prior art, the fluid product dispenser disclosed by the present application can be cleaned after use, only the screw cap is separated from the container storing the fluid product, then the actuating cap and the pump body are disassembled, and the actuating cap, the pump body and the fluid channel can be cleaned respectively, and after cleaning, the actuating cap and the pump body are reconnected, so that the fluid product dispenser in the present application is suitable for repeated use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a structural schematic view of the fluid product dispenser according to the present application.

[0021] Fig. 2 is a front view of the fluid product dispenser according to the present application.

[0022] Fig. 3 is a left view of the fluid product dispenser according to the present application.

[0023] Fig. 4 is a sectional view along line A-A in Fig. 2.

[0024] Fig. 5 is a sectional view along line B-B in Fig. 3.

[0025] Fig. 6 is a sectional view of the bladder pump according to the present application.

[0026] Fig. 7 is a sectional view of the actuating cap according to the present application.

[0027] Fig. 8 is a sectional view of the outer cap according to the present application.

[0028] Fig. 9 is a sectional view of the sealing sheet according to the present application.

[0029] In the drawings: 1-actuating cap, 101-sealing convex ring, 2-pump body, 3-outer cap, 301-sealing ring groove, 4-screw cap, 5-bladder pump, 51-opening, 52-clamping convex, 6-sealing sheet, 7-fluid storage cavity, 8-annular wall, 9-valve, 91-ball, 92-retainer, 10-tubular wall, 11-suction pipe, 12-metering cavity, 13-nozzle, 14-elongated member, 15-closing member, 16-supporting column. DETAILED DESCRIPTION

[0030] The specific embodiments of the present application will be further described in conjunction with the drawings. It should be noted that the description of the embodiments is used to help understand the present application, but does not constitute a limitation of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship of the structure of the present application based on the drawings shown, and are only for the convenience of describing the present application simply, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] For "first" and "second" in the technical solution, it is only a distinction for the same or similar structure, or the corresponding structure with similar function, and it is not the arrangement of the importance of these structures, nor the order, or the comparison of size, or other meanings.

[0033] In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, the connection can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the communication inside two structures. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the overall idea of the present application and the specific circumstances of the present solution.

[0034] Embodiment

[0035] A cleanable fluid product dispenser, as shown in Figures 1-5, comprises an actuating cap 1 and a pump body 2, which are detachably fixedly connected to each other, for example, by screwing, and when the actuating cap 1 and the pump body 2 are separated from each other, the entire fluid passage of the dispenser is exposed to facilitate cleaning, and after cleaning is completed, the actuating cap 1 and the pump body 2 are connected again, and the dispenser can be reused.

[0036] The pump body 2 comprises an outer cap 3, a threaded cap 4 and a bladder pump 5, and the side of the actuating cap 1 facing the pump body 2 is fixed with a sealing sheet 6.

[0037] The inner wall of the lower end of the threaded cap 4 has internal threads, so that the threaded cap 4 can be connected to the external threads on the container by screwing. The center of the threaded cap 4 is also coaxially provided with a fluid storage cavity 7, which is in the form of a cylindrical cylinder, and the two are connected by an annular wall 8. It is easy to understand that the threaded cap 4, the fluid storage cavity 7 and the annular wall 8 are usually integrally formed. Usually, a sealing structure, such as a sealing gasket or a sealing ring, is also provided between the annular wall 8 and the fluid product container.

[0038] The upper end of the fluid storage cavity 7 is configured in an open form to facilitate the flow of fluid product therefrom. The lower end of the fluid storage cavity 7 has a medium inlet provided with a valve seat configured to cooperate with a valve 9 for controlling whether the fluid product can flow from the fluid product container into the fluid storage cavity 7 via the medium inlet. The valve 9 includes a ball 91 positioned on the valve seat, which can be configured as a spherical surface or a conical surface that is adapted to the ball 91, and in addition, the inner wall of the fluid storage cavity 7 is further provided with a holder 92 for controlling the ball 91 to float within a certain range.

[0039] In addition, the lower end of the fluid storage cavity 7 is integrally formed with a tubular wall 10 that is in communication with the fluid storage cavity 7, and the tubular wall 10 is used to connect a suction pipe 11 that is used to extend into the fluid product container.

[0040] At the same time, the bladder pump 5 is provided with an opening 51 for communication with the fluid storage cavity 7, as shown in FIG. 6.

[0041] The outer cover 3 is generally configured in a cylindrical form with both ends open, and the upper end of the outer cover 3 is provided with external threads. The actuating cover 1 is generally configured in a cylindrical form with the upper end closed and the lower end open, and the inner wall of the lower end of the actuating cover 1 is provided with internal threads, so that the outer cover 3 and the actuating cover 1 are connected to each other by threads.

[0042] In addition, a sealing structure is provided between the actuating cover 1 and the outer cover 3, for example, a sealing protruding ring 101 is formed on the actuating cover 1, as shown in FIG. 7, and a corresponding sealing ring groove 301 is provided on the outer cover 3, as shown in FIG. 8.

[0043] The outer cover 3 can also slide axially relative to the threaded cover 4, for example, the lower end of the outer cover 3 is sleeved on the outside of the threaded cover 4, and there is a certain gap between them, so that they can move relative to each other in the axial direction.

[0044] The interior space surrounded by the actuating cap 1 and the pump body 2 is provided with a metering chamber 12, which has a variable holding volume, and the holding volume of the metering chamber 12 can be changed between a maximum volume and a minimum volume. When the metering chamber 12 is in the maximum volume state, it is isolated from the outside. The metering chamber 12 is jointly defined by a bladder pump 5 made of a deformable elastic material and a sealing sheet 6, and the bladder pump 5 is fixedly connected to the threaded cap 4. When the outer cap 3 is axially slid on the threaded cap 4, the outer cap 3 can drive the sealing sheet 6 to move towards the bladder pump 5, so that the holding volume of the metering chamber 12 changes. Of course, the bladder pump 5 can also be fixed to the outer cap 3. In this way, when the outer cap 3 is axially slid on the threaded cap 4, the outer cap 3 can drive the sealing sheet 6 and the bladder pump 5 to move together, and when the metering chamber 12 formed by the two is extruded, the holding volume of the metering chamber 12 changes. In addition, the bladder pump 5 can also be fixedly connected to both the outer cap 3 and the threaded cap 4. In this way, when the outer cap 3 is axially slid on the threaded cap 4, the holding volume of the metering chamber 12 formed by the sealing sheet 6 and the bladder pump 5 changes.

[0045] It is easy to understand that the change of the holding volume of the metering chamber 12 is caused by the axial movement of the actuating cap 1 (and the outer cap 3 fixed thereto) relative to the threaded cap 4, that is, the actuating cap 1 can move between a first position and a second position. When the actuating cap 1 is in the first position, the bladder pump 5 is away from the sealing sheet 6, and the metering chamber 12 is in the maximum volume state. When the actuating cap 1 is in the second position, the bladder pump 5 is close to the sealing sheet 6, and the metering chamber 12 is in the minimum volume state.

[0046] Among them, the actuating cap 1 is also provided with a nozzle 13 allowing the fluid product to flow out of the metering chamber 12.

[0047] Among them, the outer edge of the bladder pump 5 is in contact with the inner wall of the outer cap 3, so as to realize sealing. In addition, the outer edge of the bladder pump 5 is provided with a clamping protrusion 52 at the upper end, which is clamped at the upper end of the outer cap 3, so as to prevent the bladder pump 5 from sliding off the outer cap 3 and to strengthen the sealing effect, as shown in FIG. 6.

[0048] In addition, as shown in FIG. 9, the side of the sealing sheet 6 towards the bladder pump 5 is also formed with an extension piece 14 extending into the interior of the bladder pump 5, the extension piece 14 is in the shape of a long strip and is substantially parallel to the sliding direction of the actuating cap 1, the extension piece 14 is opposite to the opening 51 formed on the bladder pump 5, and the end of the extension piece 14 away from the actuating cap 1 is formed with a closing piece 15, which is used to close the communication state between the bladder pump 5 and the fluid storage chamber 7 when the metering chamber 12 is in the maximum volume state (that is, when the actuating cap 1 is in the first position), that is, the closing piece 15 can just close the opening 51 at this position, on the contrary, when the actuating cap 1 is not in the first position, the closing piece 15 no longer closes the opening 51.

[0049] In this embodiment, the closure 15 is configured as a sealing flange shaped on the extension 14 and in a ring-like configuration, and the opening 51 is provided with a sealing flange ring used in cooperation with the sealing flange. It is easy to understand that, since the bladder pump 5 and the sealing sheet 6 are both made of deformable elastic material, a sealing contact surface can be formed between the sealing flange and the sealing flange ring through mutual extrusion therebetween.

[0050] In addition, as shown in Fig. 7, a support column 16 extending towards the inside of the bladder pump 5 is integrally formed on the inner top wall of the actuating cover 1, and a groove adapted to the support column 16 is formed on the side of the extension 14 facing the actuating cover 1, the support column 16 is inserted into the groove, and the length of the support column 16 is configured to be substantially equal to the depth of the groove, and the support column 16 is fixed in the groove in the form of screw thread or buckle. In this way, the sealing sheet 6 can be conveniently fixed on the actuating cover 1, and the structural strength of the extension 14 can be enhanced by the support column 16 to prevent deformation or bending of the extension 14 during use, thereby ensuring the sealing effect of the closure 15.

[0051] The use process of the washable fluid product dispenser disclosed in the embodiment of the present application is as follows:

[0052] In use, the screw cap 4 is connected to the fluid product container, and then the actuating cover 1 is pressed, on the one hand, the metering cavity 12 is deformed under pressure to reduce its containing volume, and on the other hand, the extension 14 extends into the fluid storage cavity 7, so that the closure 15 no longer hinders the communication state between the bladder pump 5 and the fluid storage cavity 7, but due to the presence of the valve 9, the fluid product cannot flow through the valve 9 to the fluid product container, so the fluid product can only finally flow out of the nozzle 13.

[0053] When the actuating cover 1 is released, the metering cavity 12 resets, thereby forming a negative pressure inside the metering cavity 12, and the fluid storage cavity 7 connected to the metering cavity 12 also has a negative pressure state, under the action of the negative pressure, the valve 9 is opened, the fluid product in the fluid product container is sucked into the fluid storage cavity 7, and continues to enter the metering cavity 12 to supplement the consumption of the fluid product therein, until the metering cavity 12 returns to the maximum volume state, at this time the closure 15 re-seals the communication state between the bladder pump 5 and the fluid storage cavity 7, at this time the metering cavity 12 and the fluid storage cavity 7 are both in a closed state, and the fluid products stored inside them will not overflow, and after the actuating cover 1 is pressed again, the above process can be repeated.

[0054] Compared with the prior art, after use of the washable fluid product dispenser disclosed in the present application, only the screw cap 4 needs to be separated from the container loaded with fluid product, and then the actuating cover 1 and the outer cover 3 are detached, and the bladder pump 5, the sealing sheet 6 and the flow channel can be cleaned respectively, and after cleaning, the actuating cover 1 and the outer cover 3 are reconnected.

[0055] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, replacements, and variations of the embodiments can be made without departing from the principles and spirit of the present application, and such changes, modifications, replacements, and variations fall within the scope of the present application.

Claims

1. A cleanable fluid product dispenser characterized by: The actuating cap and the pump body are detachably connected to each other, so that the fluid channel of the dispenser is exposed when the actuating cap and the pump body are separated from each other.

2. The washable fluid product dispenser of claim 1, wherein: The pump body comprises an outer cap, a screw cap and a bag pump, the screw cap is used to connect with a container, the outer cap axially slides relative to the screw cap, the bag pump is fixed on the screw cap and / or the outer cap, a sealing sheet is further fixed on the actuating cap, the sealing sheet and the bag pump jointly define a metering cavity with a volume changing with the movement of the outer cap, and a nozzle is further arranged on the actuating cap to allow the fluid product to flow out of the metering cavity.

3. The washable fluid product dispenser of claim 2, wherein: A fluid storage cavity is further arranged on the screw cap, the fluid storage cavity is configured with a valve for controlling the flow of fluid product from the container into the fluid storage cavity, the bag pump is in communication with the fluid storage cavity, and a closure is further formed on the sealing sheet, the closure is used to control the communication state between the bag pump and the fluid storage cavity.

4. The washable fluid product dispenser of claim 3, wherein: An extension extending towards the interior of the bag pump is formed on the sealing sheet, and the closure is formed on an end of the extension away from the actuating cap.

5. The washable fluid product dispenser of claim 4, wherein: A sealing flange is formed on the extension, and the sealing flange constitutes the closure.

6. The washable fluid product dispenser of claim 5, wherein: A support column extending towards the interior of the bag pump is arranged on the inner top wall of the actuating cap, a groove adapted to the support column is formed on the extension, and the sealing sheet is connected to the support column of the actuating cap through the groove formed on the extension.

7. The washable fluid product dispenser of claim 2, wherein: One of the actuating cap and the outer cap is provided with a sealing protruding ring, and the other is provided with a sealing ring groove.

8. The washable fluid product dispenser of claim 2, wherein: A clamping protrusion is arranged at the outer edge of the upper end of the bag pump to prevent the bag pump from sliding off the outer cap.

9. The washable fluid product dispenser of claim 3, wherein: An opening for communicating with the fluid storage cavity is formed on the bag pump, and a sealing protruding ring cooperating with the sealing flange is arranged at the opening.

10. The washable fluid product dispenser of claim 3, wherein: The valve comprises a sealing ball and a retainer, the retainer is fixed in the fluid storage cavity, the retainer is used to limit the movement of the sealing ball within a defined range, and the sealing ball is used to seal a fluid inlet arranged on the fluid storage cavity.

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