Push-to-switch for push-to-dispense multi-product systems

Abstract

The present invention relates to a push switch for a push-type multi-product dispensing system, the push switch comprising: a push switch body; a nozzle fixed on the push switch body, the push switch body and the nozzle forming a subassembly, a plurality of liquid outlets being arranged on the nozzle, each of which is connected to a product. The push switch comprises a first channel, the first channel passes through the push switch body and the nozzle, a first product enters a first cavity of the push switch body through the first channel, and flows out through the first liquid outlet of the nozzle. The push switch further comprises a second channel, the second channel only passes through the nozzle, a second product enters a cavity connected to the nozzle through the second channel, and flows out through the second liquid outlet of the nozzle, the second liquid outlet being suspended above the first liquid outlet.

Description

Technical Field

[0001] The invention relates to a push switch of a push-type multi-product dispensing system and the push-type multi-product dispensing system.

[0002] In a specific application range, a dispensing system is provided in a perfume bottle, a cosmetic bottle or a medicine bottle. In actual situations, the above bottles are filled with liquid products, which can be taken out or reset by a pressurized access device of the dispensing system, and the dispensing system is driven by a push switch to control the ejection of the product. The pressurized access device includes a liquid suction pump, or a liquid suction valve manually controlled by a push switch.

[0003] In the present invention, the distribution system can distribute multiple products, each of which is contained in a specific container. A specific liquid outlet is provided in the push switch, and each product flows out through the liquid outlet. Therefore, in the distribution system, the number of liquid outlets is equal to the number of products. When taking a certain product, it must be ensured that other products cannot be mixed with it. Therefore, in the distribution system, each product flows along its own liquid channel and flows out from its own liquid outlet.

[0004] The dispensing system is driven by a single push switch, which can take out one pump of product through the suction pump each time the push switch is activated. The number of suction pumps is equal to the number of liquid outlets. Background Art

[0005] A known dispensing system comprises two liquid reservoirs, each containing a liquid product. A push switch comprises two liquid outlets, each corresponding to a product. In this case, the liquids are mixed only at the outlet.

[0006] In the first embodiment, the push switch includes a push switch body, wherein the push switch body is provided with two liquid channels, wherein one side of the two liquid channels is connected to two liquid reservoirs, and the other side of the two liquid channels is connected to two liquid outlets directly provided on the push switch body.

[0007] In the second embodiment, the push switch includes a push switch body, which is composed of two parts, namely a left half and a right half, each of which is connected to the liquid reservoir and each of which is provided with a liquid outlet.

[0008] In the third embodiment, the push switch includes a push switch body and a dispensing nozzle. The push switch body is provided with two liquid channels, one side of which is connected to two liquid reservoirs and the other side is connected to the nozzle. The nozzle is provided with two liquid outlets.

[0009] In each of the above embodiments, the two liquid reservoirs are always placed side by side in the same direction, and the push switch is always located between the two liquid reservoirs, and the two liquid outlets are arranged in a straight line, parallel to the arrangement direction of the liquid reservoirs. Therefore, the distribution system is provided with a liquid channel on the right side that communicates with the right liquid reservoir and the right liquid outlet, and a liquid channel on the left side that communicates with the left liquid reservoir and the left liquid outlet, and the two liquid channels will not intersect.

[0010] The object of the present invention is to provide a liquid dispenser, which includes three liquid reservoirs (three-tank system) arranged non-aligned, each liquid reservoir is equipped with a suction pump, and the three suction pumps are controlled by a push switch. In addition, the push switch is provided with three liquid outlets distributed in a triangle (such as an equilateral triangle), one of which is suspended above the other two liquid outlets. The three liquid reservoirs are distributed in a triangle, one of which is arranged perpendicular to the liquid outlet of the push switch (called the front liquid reservoir or the front liquid reservoir), and the other two liquid reservoirs are located at the rear, that is, on the side opposite to the liquid outlet. The front liquid reservoir must be connected to the upper liquid outlet, so the liquid channels extending from each suction pump to each liquid outlet intersect at the push switch. In this case, the pins of the injection mold must cross each other, so the manufacturing process of the qualified integrated spray head is very complicated. In addition, the space between the two lower liquid outlets is smaller than the diameter of the upper liquid outlet.

[0011] In the dual-reservoir system, the three reservoirs mentioned above are replaced with two reservoirs, but the technical challenges are the same. In the dual-reservoir system, the front reservoir is connected to the upper outlet, and the rear reservoir is connected to the lower outlet. The upper outlet is suspended above the lower outlet, and the two outlets are vertically aligned. Similar to the three-reservoir system, the pins of the one-piece nozzle injection mold must also be crossed, so the manufacturing process is also complicated. Summary of the invention

[0012] The object of the present invention is to provide a push switch for a push-type multi-product dispensing system, the push switch comprising:

[0013] -Press the switch body;

[0014] - A spray head fixed on the push switch body, the push switch body and the spray head form a subassembly, and the spray head is provided with a plurality of liquid outlet holes, each of which is connected to the product.

[0015] The push switch includes a first channel, which passes through the push switch body and the nozzle. The first product enters the first cavity of the push switch body through the first channel and flows out through the first liquid outlet of the nozzle.

[0016] The push switch also includes a second channel, which only passes through the nozzle. The second product enters the cavity connected to the nozzle through the second channel and flows out through the second liquid outlet of the nozzle. The second liquid outlet is suspended above the first liquid outlet.

[0017] The main idea of ​​the present invention is to connect the nozzle directly to the liquid reservoir, without the need to pass through the push switch body as in the traditional technical solution. This method can easily bypass the push switch body. Since the second channel only passes through the nozzle and bypasses the push switch body, the liquid channel is very short. The push switch body is connected to the rear liquid reservoir. The two liquid outlets are not aligned in the horizontal direction, but are arranged at different heights in the nozzle. Therefore, one liquid channel needs to pass over the other liquid channel in the nozzle, and the two liquid channels intersect in the nozzle.

[0018] The present invention provides the following multiple embodiments, which can be implemented independently or in combination:

[0019] - A push switch, comprising a third channel, the third channel passing through the push switch body and the spray head, through which a third product enters the second cavity of the push switch body and flows out through the third liquid outlet of the spray head: in this case, only two of the three channels pass through the push switch body, and the push switch body enables the spray head to communicate with the two rear liquid reservoirs of the dispensing system.

[0020] - The three liquid outlet holes are distributed in a triangle shape, and the second liquid outlet hole is suspended above the other two liquid outlet holes: This solution is a traditional distribution form of the nozzle, which can make the three products flowing out of the three liquid outlet holes gather together as much as possible. When the user takes it, it is a large drop of liquid after the collection, rather than three continuous small drops of liquid.

[0021] - Each channel includes an axial portion and a transverse portion perpendicular to the axial portion: in actual design, there is an axial portion between the suction pump and the push switch to connect the two, and the axial portion is formed by extending the transverse portion so that it is connected to the corresponding liquid outlet.

[0022] -The transverse parts of the first channel and the third channel are distributed on the same transverse plane, on which the first liquid outlet hole and the third liquid outlet hole of the nozzle are distributed: therefore, the height of the transverse parts of the first channel and the third channel is the same as the height of the corresponding liquid outlet hole in the push switch.

[0023] - An axial portion of the second channel passes through the transverse plane and between the two transverse portions of the first channel and the third channel located in the spray head: therefore, the transverse portion of the second channel is not in the same transverse plane as the transverse portions of the first channel and the third channel, but is located at a higher position, at the same height as the second liquid outlet.

[0024] -The transverse parts of the first and third channels are separated from the liquid outlet, leaving enough space for the axial part of the second channel: Since the space between the two lower channels (the first and third channels) is smaller than the diameter of the second channel, more space needs to be left between the first and third channels to allow the second channel to pass, that is, to allow the axial part of the second channel to pass. This arrangement allows different channels to intersect in the nozzle while maintaining mutual sealing.

[0025] -The spray head and the push switch body are assembled into the subassembly from two separate parts.

[0026] - The first channel and the third channel contain matching hollow parts, and the spray head and the push switch body are assembled by assembling the hollow parts: the spray head and the push switch body are assembled by sealing each channel separately.

[0027] The spray head and the push switch body consist of a single piece forming the subassembly, the spray head being fixed to the push switch body by overmolding: for example by double injection molding.

[0028] The present invention also relates to a push-type multi-product dispensing system, comprising the push switch described above.

[0029] Preferably, the distribution system is composed of three liquid reservoirs, each of which is equipped with a liquid suction pump, and each of which is connected to the liquid outlet of the spray head.

[0030] The distribution system includes a front part and a rear part opposite to the front part, the liquid outlet of the nozzle opens to the front part, the first liquid reservoir of the three liquid reservoirs is located at the front part and connected to the second channel, and the other two liquid reservoirs are located at the rear part and connected to the first channel and the third channel.

[0031] In practical applications, the dispensing system includes a sleeve mounted on the liquid reservoir, and a push switch body of the push switch is mounted on the sleeve.

[0032] The push switch body of the push switch comprises a slot tube which can be sleeved on the central cavity of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features and advantages of the present invention will become more apparent by reading the detailed description of the preferred embodiments below, and the accompanying drawings are helpful for further understanding of the present invention. In the accompanying drawings:

[0034] Figure 1 The present invention is an exploded schematic diagram of a dispensing system including the push switch provided by the present invention.

[0035] Figure 2 yes Figure 1 A cross-sectional view of the dispensing system is shown.

[0036] Figure 3 is a front view of the dispensing system with the push switch highlighted.

[0037] Figure 4 is a perspective view of a push switch subassembly, which consists of a push switch body and a spray head.

[0038] Figure 5 yes Figure 4 Exploded schematic diagram of the subassembly shown.

[0039] Figure 6 It is a perspective view of the push switch provided by the present invention, and the push switch includes a push switch body, a spray head and a bottle cap.

[0040] Figure 7 It is a top view showing the push switch body, the spray head and various liquid channels passing therethrough.

[0041] Figure 8 It is a perspective cross-sectional view of the subassembly in a transverse plane through the two lower liquid outlet holes of the nozzle, as shown in the schematic diagram on the left side of the figure.

[0042] Fig. 9 It is a perspective cross-sectional view of the subassembly passing through the upper liquid outlet of the nozzle in the transverse plane, as shown in the schematic diagram on the left side of the figure.

[0043] Fig.10 is a perspective view of a sleeve for securing a push switch to a dispensing system bottle.

[0044] Fig.11 A dual liquid reservoir system provided by the present invention is shown. DETAILED DESCRIPTION

[0045] As shown in the accompanying drawings, a push switch 1 for a dispensing system for pressurized liquid products is described below. The product can be of any type, such as perfume, cosmetics or medicines.

[0046] like Figures 1 to 3 As shown, the dispensing system comprises a push switch 1 protected by a cover 5 and connected to a dispensing device mounted on a bottle 11 containing the product to be dispensed.

[0047] The taking device may include a manually operated liquid suction pump 6 as shown in the figure, and may also include a manually operated liquid taking valve if the product is pressurized in the bottle 11. Therefore, when the push switch 1 is manually operated, the liquid suction pump 6 or the liquid taking valve is driven to deliver the product to the push switch 1 by pressurization.

[0048] In this case, the bottle 11 includes three liquid reservoirs 10 respectively containing different products, and each liquid reservoir 10 is connected to a liquid suction pump 6. Therefore, there are three liquid suction pumps 6, three pistons 9 and three purge rings 8 in the sleeve 7, and the sleeve 7 is fixed on the bottle 11. The push switch 1 is directly connected to the three liquid suction pumps 6 through three cavities 17a, 17b, and 18, and liquid can flow between the liquid reservoir 10 and the push switch 1.

[0049] The push switch 1 mainly includes three parts, namely:

[0050] - A push switch body 3 , which in this case comprises two cavities 17 a , 17 b , which are fixed by product pressurizing liquid extraction pipes in two liquid suction pumps 6 .

[0051] - A spray head 4 fixed on the push switch body 3 and in fluid communication with the cavities 17a, 17b, the spray head 4 also comprising a cavity 18, the cavity 18 being fixed by a product pressurizing liquid extraction pipe in the third liquid suction pump 6.

[0052] - A bottle cap 2 is arranged around the push switch body 3 and the spray head 4, wherein the bottle cap 2 comprises an upper support area 21, and a user can manually press and control the push switch 1 in the upper support area 21 to make the push switch 1 move axially.

[0053] The push switch body 3 and the spray head 4 form a subassembly, which is inserted into the bottle cap 2 .

[0054] In this case, if Figure 3 As shown, the spray head 4 includes three liquid outlets 22 for dispensing three products contained in three liquid reservoirs 10. Each liquid outlet 22 is independently connected to the liquid suction pump 6 and the corresponding liquid reservoir 10 through an independent liquid channel.

[0055] In this case, if Figure 4 and Figure 5 As shown, the spray head 4 is fixed on the push switch body 3 by a nesting device of corresponding shape. The rear surface of the spray head 4 is provided with two hollow cylindrical parts 30, and the hollow cylindrical parts 30 are nested in two other larger hollow cylindrical parts 31. Each hollow cylindrical part 31 of the push switch body 3 extends vertically through the above-mentioned cavity 17a or 17b.

[0056] Therefore, the spray head 4 and the push switch body 3 are two independent components that are joined to each other to form a subassembly.

[0057] Therefore, in the second molding stage, it can be considered that the spray head 4 is covered on the push switch body 3. In this case, the spray head 4 and the push switch body 3 will become one part and constitute a subassembly.

[0058] like Figure 5 As shown, the bottle cap 2 is a hollow cylindrical rotating component, the top of which is closed by the supporting surface 21 and a window-like opening 20 is formed at the outer peripheral wall 29 thereof.

[0059] The nozzle 19 of the spray head 4 extends out from the window-shaped opening 20, and the nozzle 19 constitutes the front part of the spray head 4, where three liquid outlet holes 22a, 22b, 22c are arranged.

[0060] In the illustrated embodiment, Figure 2 As shown, the front part (AV) of the dispensing system is constituted by the nozzle of the spray head 4. A front reservoir 10 is provided at the front part (AV) directly below the spray head 4. The front reservoir 10 is directly connected to the spray head 4 through the central cavity 18 of the spray head 4. Two rear reservoirs 10 are located at the rear part (AR) of the dispensing system, specifically, the left rear reservoir 10 is connected to the push switch body 3 through the left rear cavity 17a, and the right rear reservoir 10 is connected to the push switch body 3 through the right rear cavity 17b. Finally, viewed from above, the three reservoirs 10 are arranged in a triangle, wherein the front reservoir 10 is below the spray head 4, and the two rear reservoirs 10 are located below the push switch body 3.

[0061] like Figure 6 As shown, it can be clearly seen that the nozzle 4 includes three liquid outlet holes 22a, 22b, and 22c, which are distributed in a triangular shape, and in this example, are equilateral triangles. The upper liquid outlet hole 22b is suspended above the two lower liquid outlet holes 22a and 22c. To make the description clearer, the lower left liquid outlet hole 22a is called the first liquid outlet hole, the upper liquid outlet hole 22b is called the second liquid outlet hole, and the lower right liquid outlet hole 22c is called the third liquid outlet hole.

[0062] Figure 6 Two fluid pathways are shown, indicated by arrows.

[0063] Specifically, one of the fluid channels flows in from the cavity 17b of the push switch body 3, passes through the push switch body 3, enters the nozzle 4, and flows out through one of the lower liquid outlet holes 22c. Another fluid channel flows in from the cavity 18 of the nozzle 4, passes through the nozzle 4, and flows out through the upper liquid outlet hole 22b. This embodiment also includes a third fluid channel. Due to the position distribution, Figure 6 The third fluid channel is not shown in FIG. Figure 7 Shown in. Figure 7It is a top view of the push switch body 3 and the nozzle 4 of the push switch 1 subassembly, and three fluid channels are shown in the figure, and the fluid channels are composed of related pipes. Specifically, the subassembly includes a first channel 47, which is located on the right side of the push switch body 3, passes through the push switch body 3, passes through the nozzle 4, and is finally connected to the first liquid outlet 22a. The subassembly includes a second channel 48, which is directly located at the nozzle 4 without passing through the push switch body 3, and is connected to the second liquid outlet 22b. Finally, the subassembly includes a third channel 49, which is located on the left side of the push switch body 3, passes through the push switch body 3, passes through the nozzle 4, and is finally connected to the third liquid outlet 22c. It can be clearly seen that the second channel 48 is located between the first channel 47 and the third channel 49.

[0064] As described above, each channel 47, 48, 49 holds one product. At the outlet of the spray head 4, each liquid outlet hole 22a, 22b, 22c outputs one pump of product, and the user takes out a total product consisting of three products. The three liquid outlet holes 22a, 22b, 22c are very close to each other, so the user takes out a drop of uniform liquid instead of three small independent drops of liquid.

[0065] Each channel 47, 48, 49 comprises an axial portion and a transverse portion perpendicular to the axial portion. The axial portion is the portion extending along the installation axis of the distribution system.

[0066] Figure 8 The first channel 47 and the third channel 49 are shown, and in particular, a transverse plane including the transverse portion 44 of the first channel 47 and the transverse portion 46 of the third channel 49 is shown. The left side of the figure specifically shows the transverse plane. It can be seen that the transverse plane passes through the two lower liquid outlet holes 22a, 22c. The axial portions 41, 42, 43 of the three channels 47, 48, 49 can also be seen from the figure.

[0067] The first channel 47 is located on the left side of the subassembly. As can be seen from the figure, the axial portion 41 of the first channel 47 passes through the cavity 17a, extends vertically from the transverse portion 44, first passes through the push switch body 3, then passes through the nozzle 4, and finally opens at the first liquid outlet 22a.

[0068] The third channel 49 is located on the right side of the subassembly. As can be seen from the figure, the axial portion 43 of the third channel 49 passes through the cavity 17b, extends vertically from the transverse portion 46, first passes through the push switch body 3, then passes through the nozzle 4, and finally opens at the third liquid outlet 22c.

[0069] The transverse portion 44 of the first channel 47 and the transverse portion 46 of the third channel 49 approach each other toward the direction of the nozzle 4 and the liquid outlet holes 22a, 22c. Therefore, the interval between the transverse portions 44 and 46 is the largest at the cavities 17a, 17b and the smallest at the nozzle 19 of the nozzle 4, and the first liquid outlet hole 22a and the third liquid outlet hole 22c are very close.

[0070] Figure 8 Also shown is a portion of the axial portion 42 of the second channel 48, which traverses the entire nozzle 4 longitudinally from the central cavity 18 of the nozzle 4, passing between the transverse portion 44 of the first channel and the transverse portion 46 of the third channel 49. Therefore, the axial portion 42 of the second channel 48 needs to intersect with the axial portions 44, 46 of the other two channels 47, 49. In fact, there is a certain offset between the cavity 18 of the nozzle 4 and the nozzle 19 of the nozzle 4, so that the distance between the transverse portion 44 of the first channel 47 and the transverse portion 46 of the third channel 49 is sufficient to allow the axial portion 42 of the second channel 48 to pass, while ensuring the sealing of the above-mentioned transverse and axial portions 44, 46, 42, while avoiding reducing the cross-sectional area of ​​the channels 47, 49, 48.

[0071] Fig. 9 The end of the axial portion 42 of the second channel 48 is shown, and the end is vertically extended by the transverse portion 45 located at the opening of the second liquid outlet 22b. As shown in the left-hand inset of the figure, the end can be clearly seen at the second liquid outlet 22b in cross section.

[0072] The push switch 1 is fixed on the bottle of the dispensing system by the sleeve 7. Specifically, the push switch body 3 of the push switch 1 includes a central cavity 40, and the central cavity 40 is adapted to the central axis 50 of the sleeve 7. The sleeve 7 also includes three hollow cylindrical parts 51, 52, 53, in which three suction pumps 6 of the dispensing system are installed. Among the three hollow cylindrical parts 51, 52, 53, one cylindrical part is located at the front of the dispensing system and is adapted to the front liquid reservoir 10, and the other two cylindrical parts are located at the rear of the dispensing system and are adapted to the two rear liquid reservoirs 10.

[0073] Fig.11 for Fig.11 a. Fig.11 b and Fig.11 c, which together illustrate the dual tank system provided by the present invention. The reference numerals used in the figure are the same as those of the three tank system described above. Fig.11 a is a perspective view, Fig.11 b is the front view facing the nozzle, Fig.11 c is along Fig.11 Section view of AA in b.

[0074] like Fig.11 a and Fig.11 As shown in FIG. 2 b, the nozzle includes a lower liquid outlet 22a (first liquid outlet) and an upper liquid outlet 22b (second liquid outlet).

[0075] like Fig.11 As shown in FIG. 3 , the push switch includes a first channel 47 , which passes through the push switch body 3 and the nozzle 4 . The first product enters the first cavity 17a of the push switch body 3 through the first channel 47 and flows out through the first liquid outlet 22a of the nozzle 4 .

[0076] The push switch also includes a second channel 48, which only passes through the nozzle 4. The second product enters the cavity 18 connected to the nozzle 4 through the second channel 48 and flows out through the second liquid outlet 22b of the nozzle 4. The second liquid outlet 22b is suspended above the first liquid outlet 22a.

[0077] In this case, the second passage 48 is concentric with the first passage 47 , and the second passage 48 surrounds the first passage 47 .

[0078] Specifically, the axial portion 42 of the second passage 48 is concentric with a portion of the lateral portion 44 of the first passage 47 .

[0079] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Ordinary technicians in the technical field to which the present invention belongs can make various modifications and changes within the scope of the technical idea of ​​the present invention.

Claims

1. A push switch (1) for a push-type multi-product dispensing system, the push switch (1) comprising: - press the switch body (3); - a spray head (4) fixed on the push switch body (3), the push switch body (3) and the spray head (4) forming a subassembly, the spray head (4) being provided with a plurality of liquid outlet holes (22a, 22b, 22c), each of the liquid outlet holes (22a, 22b, 22c) being connected to the product; The push switch (1) comprises a first channel (47), the first channel passing through the push switch body (3) and the spray head (4), the first product enters the first cavity (17a) of the push switch body (3) through the first channel, and flows out through the first liquid outlet (22a) of the spray head (4); The push switch (1) is characterized in that the push switch (1) further comprises a second channel (48), the second channel only passes through the nozzle (4), the second product enters the cavity (18) connected to the nozzle (4) through the second channel, and flows out through the second liquid outlet (22b) of the nozzle (4), the second liquid outlet is suspended above the first liquid outlet (22a), The push switch (1) comprises a third channel (49), the third channel passing through the push switch body (3) and the nozzle (4), the third product entering the second cavity (17b) of the push switch body (3) through the third channel, and flowing out through the third liquid outlet (22c) of the nozzle (4).

2. The push switch (1) of the push-type multi-product dispensing system according to claim 1, characterized in that: The three liquid outlet holes (22a, 22b, 22c) are distributed in a triangle shape, and the second liquid outlet hole (22b) is suspended above the other two liquid outlet holes (22b, 22c).

3. The push switch (1) of the push-type multi-product dispensing system according to claim 2, characterized in that: Each channel (47, 48, 49) comprises an axial portion (41, 42, 43) and a transverse portion (44, 45, 46) perpendicular to the axial portion (41, 42, 43).

4. The push switch (1) of the push-type multi-product dispensing system according to claim 3, characterized in that: The transverse parts (44, 46) of the first channel (47) and the third channel (49) are distributed on the same transverse plane, and the first liquid outlet hole (22a) and the third liquid outlet hole (22c) of the spray head (4) are distributed on the transverse plane.

5. The push switch (1) of the push-type multi-product dispensing system according to claim 4, characterized in that: The axial portion (42) of the second channel (48) passes through the transverse plane and between the two transverse portions (44, 46) of the first channel (47) and the third channel (49) located in the spray head (4).

6. The push switch (1) of the push-type multi-product dispensing system according to claim 5, characterized in that: The transverse portions (44, 46) of the first channel (47) and the third channel (49) are separated from the liquid outlet holes (22a, 22b, 22c), leaving enough space for the axial portion (42) of the second channel (48).

7. The push switch (1) of the push-type multi-product dispensing system according to any one of the preceding claims, characterized in that: The spray head (4) and the push switch body (3) are assembled into the subassembly from two independent parts.

8. The push switch (1) of the push-type multi-product dispensing system according to claim 7, characterized in that: The first passage (47) and the third passage (49) contain matching hollow parts (30, 31), and the spray head (4) and the push switch body (3) are assembled by assembling the hollow parts.

9. The push switch of the push-type multi-product dispensing system according to any one of claims 1 to 6, characterized in that: The spray head (4) and the push switch body (3) are composed of a single piece constituting the subassembly, and the spray head (4) is fixed to the push switch body (3) by overmolding.

10. A push-type multi-product dispensing system, comprising the push switch (1) according to any one of the preceding claims.

11. The push-type multi-product dispensing system according to claim 10, characterized in that: The distribution system comprises three liquid reservoirs (10), each of which is equipped with a liquid suction pump (6), and each of which is connected to a liquid outlet (22a, 22b, 22c) of a spray head (4).

12. The push-type multi-product dispensing system according to claim 11, characterized in that: The distribution system comprises a front part and a rear part opposite to the front part, the liquid outlet holes (22a, 22b, 22c) of the nozzle (4) are open to the front part, the first liquid reservoir (10) of the three liquid reservoirs (10) is located at the front part and connected to the second channel (48), and the other two liquid reservoirs (10) are located at the rear part and connected to the first channel (47) and the third channel (49).

13. The push-type multi-product dispensing system according to claim 11 or 12, characterized in that: The dispensing system comprises a sleeve (7) mounted on a liquid reservoir (10), and a push switch body (3) of a push switch (1) is mounted on the sleeve (7).

14. The push-type multi-product dispensing system according to claim 13, characterized in that: The push switch body (3) of the push switch (1) comprises a groove tube (40) which can be sleeved on the central cavity (50) of the sleeve (7).

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