Foam machine and hand washing device

DE202025104095U1Active Publication Date: 2025-09-04SHENZHEN ESHISHANG TECH CO LTD
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Patent Information

Application Number
DE202025104095
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2025-07-07
Filing Date
2025-07-16
Publication Date
2025-09-04
Estimated Expiration
2035-07-31

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Abstract

A foam machine, characterized in that the foam machine comprises a machine body (100), a liquid supply part (200), a first liquid drainage channel (300), a second liquid drainage channel (400), and a foam component (500), wherein the machine body (100) has an intermediate chamber (110) and an inlet (120) and outlet (130) connected to the intermediate chamber (110); the foam component (500) is detachably arranged in the intermediate chamber (110);the liquid outlet of the liquid supply part (200) is connected to one end of the first liquid drainage channel (300), the other end of the first liquid drainage channel (300) is connected to the inlet (120), and the outlet (130) is connected to one end of the second liquid drainage channel (400), so that the gas-liquid mixture provided by the liquid supply part (200) flows successively through the first liquid drainage channel (300), the inlet (120), the foam component (500), the outlet (130), and the second liquid drainage channel (400);
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Description

Technical area

[0001] The present utility model relates to the technical field of cleaning appliances, in particular a foam machine and a hand washing device. State of the art

[0002] With the improvement of living standards, an increasing number of families are beginning to use handwashing devices that automatically dispense handwashing liquid when users use them, making it easier for users to operate.

[0003] However, the foam components of handwashing devices often become clogged during practical use, which impairs the liquid dispensing and foam generation of the handwashing devices. Furthermore, the foam components of existing handwashing devices are usually designed as integrated components and cannot be repaired individually. Therefore, users frequently replace the handwashing devices, which also leads to a shorter service life of these handwashing devices. Content of the utility model

[0004] The present utility model aims to provide a foam machine and a hand washing device that facilitate the user to repair the foam components of the hand washing device.

[0005] According to one aspect of the present invention, a foam machine is provided. The foam machine comprises a machine body, a liquid supply part, a first liquid discharge channel, a second liquid discharge channel, and a foam component, wherein the machine body has an intermediate chamber and an inlet and outlet connected to the intermediate chamber; the foam component is detachably disposed in the intermediate chamber; the liquid outlet of the liquid supply part is connected to one end of the first liquid discharge channel, the other end of the first liquid discharge channel is connected to the inlet, and the outlet is connected to one end of the second liquid discharge channel, so that the gas-liquid mixture supplied by the liquid supply part flows sequentially through the first liquid discharge channel, the inlet, the foam component, the outlet, and the second liquid discharge channel.

[0006] The technical solution provided in the present utility model allows the foam component to be detachably arranged in the intermediate chamber of the machine body and the liquid drainage channel to be routed through the foam component. This not only allows the gas-liquid mixture supplied by the liquid supply part to be converted into foam by means of the foam component, but also allows the user to remove the foam component from the intermediate chamber for repair if the foam component becomes clogged. Thus, the user can easily repair the foam component of the hand washing device without having to replace the entire device, reducing repair costs for the user.

[0007] In a further embodiment of the above technical solution, the intermediate chamber further comprises a mounting opening, wherein the foam component is detachably mounted in the intermediate chamber via the mounting opening.

[0008] In a further embodiment of the above technical solution, the foam machine further comprises a closure lid, and the closure lid is detachably arranged on the mounting opening.

[0009] In a further embodiment of the above technical solution, the intermediate chamber comprises an interconnected first chamber and second chamber, wherein the inlet is connected to the outlet successively through the first chamber and the second chamber, the foam component is at least partially arranged in the second chamber and the assembly opening is directly connected to the first chamber.

[0010] In a further embodiment of the above technical solution, the end of the second chamber adjacent to the first chamber has a gripping groove; the end of the foam component adjacent to the second chamber has an outer flange, and the outer flange extends at least partially to the gripping groove and is spaced a predetermined distance from the groove base of the gripping groove. In a further embodiment of the above technical solution, a sealing element is arranged between the foam component and the inner wall surface of the second chamber.

[0011] In a further embodiment of the above technical solution, the machine body comprises a detachably connected upper body and lower body, wherein the liquid supply part, the first liquid drainage channel, the second liquid drainage channel, and the foam component are arranged on the upper body and the mounting opening is positioned on the underside of the upper body; when the upper body and lower body are connected, the lower body covers the mounting opening.

[0012] In a further embodiment of the above technical solution, the lower body has a liquid chamber, wherein the liquid outlet of the liquid supply part is connected to the liquid chamber.

[0013] In a further embodiment of the above technical solution, the foam component comprises a first foam net, a second foam net and a support ring, wherein the first foam net and the second foam net are arranged at the two ends of the support ring.

[0014] According to a further aspect of the present invention, a handwashing device is provided. The handwashing device comprises the foaming machine described above. Description of the attached drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings used in the description of the embodiments are briefly introduced below. Obviously, the drawings cited in the following description represent only a few embodiments of the present utility model. Further drawings based on these drawings are available to those skilled in the art without inventive effort. Fig. 1 shows a half-sectioned schematic view of a hand washing device according to an embodiment of the present utility model. Fig. 2 shows a schematic view of a part of the structure of the hand washing device according to an embodiment of the present utility model. Fig. Figure 3 shows a schematic view of the structure after removing the closure cap and the foam component of Fig. 2. Fig. Figure 4 shows an enlarged view of section A of Fig. 3. Fig. 5 shows a semi-sectional schematic view of a part of the structure of the hand washing device at the position of the foam component according to an embodiment of the present utility model. Fig. 6 shows a schematic view of the structure of the closure cap and the foam component according to an embodiment of the present utility model. Fig. 7 shows a half-sectioned schematic view of the foam component according to an embodiment of the present utility model. Designation of reference symbols:

[0016] 100-Machine body; 101-Upper body; 102-Lower body; 110-Intermediate chamber; 111-First chamber; 112-Second chamber; 113-Gripping groove; 120-Inlet; 130-Outlet; 140-Mounting opening; 200-liquid supply part; 300-first fluid drainage channel; 400-second fluid drainage channel; 500-Foam component; 510-Outer flange; 520-First foam net; 530-Second foam net; 540-Support ring; and 600-closure lid; Examples of implementation

[0017] In order to clarify the objectives, technical solutions, and advantages of the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model are described clearly and comprehensively below in conjunction with the drawings of the embodiments of the present utility model. Obviously, the described embodiments represent only a portion of the embodiments of the present utility model, not all of them.

[0018] As in Fig. 1 to Fig. As shown in Figure 7, the foam machine in this embodiment is a foam generating device that can be used as a hand washing device, but also as a foam mask device or other devices that need to generate foam. Specifically, the foam machine may include a machine body 100, a liquid supply part 200, a first liquid drainage channel 300, a second liquid drainage channel 400, and a foam component 500. The machine body 100 serves as the basic support of the foam machine to support other components. The machine body 100 has an intermediate chamber 110 and an inlet 120 and outlet 130 connected to the intermediate chamber 110. The foam component 500 is detachably arranged in the intermediate chamber 110. Thus, the user can remove the foam component 500 from the intermediate chamber 110 for repair when the foam component 500 becomes clogged.Thus, the user can easily repair the foam component 500 of the handwashing device without having to replace the entire device, reducing repair costs for the user. For example, the intermediate chamber 110 can be enclosed either by the body of the machine body 100 or by other components connected to the machine body 100, although there are no specific limitations.The liquid outlet of the liquid supply part 200 is connected to one end of the first liquid drainage channel 300, the other end of the first liquid drainage channel 300 is connected to the inlet 120, and the outlet 130 is connected to one end of the second liquid drainage channel 400, so that the gas-liquid mixture provided by the liquid supply part 200 flows sequentially through the first liquid drainage channel 300, the inlet 120, and the foam component 500 to form foam, and then exits through the outlet 130 and the second liquid drainage channel 400 for the user to use. For example, the first liquid drainage channel 300 and the second liquid drainage channel 400 may either be channels formed in the machine body 100, the first liquid drainage channel 300 may also be a pipe such as a PVC pipe or a metal pipe, etc.

[0019] It should be noted that the specific structure of the liquid supply part 200 may be based on the prior art. The principle it applies may be that a motor drives an internal diaphragm pump, gear pump, or other pumping device to pump liquid, and at the same time, the pump creates a negative pressure at the air inlet to suck in air, so that liquid and air are mixed in a certain ratio. In this case, the liquid supply part 200 also has an air inlet. The principle applied may also be that a motor drives a centrifugal rotor to rotate, and the hand washing liquid is thrown out and mixed with air, although there are no specific restrictions on this.

[0020] The intermediate chamber 110 further comprises a mounting opening 140, wherein the foam component 500 is detachably mounted in the intermediate chamber 110 via the mounting opening 140, so that it can also be easily removed from the mounting opening 140.

[0021] In some embodiments, the foam component 500 may seal the mounting opening 140 when the foam component 500 is mounted in the intermediate chamber 110 to prevent fluid from leaking from the intermediate chamber 110.

[0022] In some other embodiments, as in the Fig. 3 to Fig. 6, the foam machine further comprises a closure lid 600, and the closure lid 600 is detachably disposed on the mounting opening 140 such that the closure lid 600 seals the mounting opening 140 to prevent leakage of liquid from the intermediate chamber 110.

[0023] Furthermore, a sealing element can be arranged between the closure cover 600 and the mounting opening 140 in order to improve the sealing effect.

[0024] In some embodiments, as in the Fig. 3 to Fig. 5, the intermediate chamber 110 comprises an interconnected first chamber 111 and second chamber 112, wherein the inlet 120 is connected sequentially through the first chamber 111 and the second chamber 112 to the outlet 130, the foam component 500 is at least partially disposed in the second chamber 112, and the mounting opening 140 is directly connected to the first chamber 111. In this way, the gas-liquid mixture provided by the liquid supply part 200 flows through the inlet 120 into the first chamber 111, then through the foam component 500 to form foam, and finally exits through the outlet 130.

[0025] To conveniently remove the foam component 500 from the second chamber 112, in some embodiments, the end of the second chamber 112 adjacent to the first chamber 111 has a gripping groove 113; the end of the foam component 500 adjacent to the second chamber 112 has an outer flange 510, and the outer flange 510 extends at least partially to the gripping groove 113 and has a predetermined distance from the groove bottom of the gripping groove 113. In this way, a gripping tool or a finger can be placed at the predetermined distance between the outer flange 510 and the groove bottom of the gripping groove 113 to conveniently remove the foam component 500 from the second chamber 112 via the outer flange 510.

[0026] Furthermore, a sealing member is arranged between the foam component 500 and the inner wall surface of the second chamber 112 to prevent the gas-liquid mixture from flowing between the foam component 500 and the inner wall surface of the second chamber 112, so that the entire gas-liquid mixture flows through the foam component 500, thereby improving the foaming effect.

[0027] In some embodiments, the machine body 100 comprises a detachably connected upper body 101 and lower body 102, wherein the liquid supply part 200, the first liquid drainage channel 300, the second liquid drainage channel 400, and the foam component 500 are arranged on the upper body 101, and the mounting opening 140 is positioned on the underside of the upper body 101; when the upper body 101 and lower body 102 are connected, the lower body 102 covers the mounting opening 140 to prevent the area where the foam component 500 is mounted from being exposed and to improve aesthetics.

[0028] The fluid supply part can pump 200 fluids from the external environment.

[0029] Of course, the liquid supply part 200 can also pump liquid from the interior of the machine body 100. For example, the machine body 100 has a liquid chamber in which a hand washing solution is stored. Specifically, the liquid chamber can be arranged on the lower body 102, and the liquid outlet of the liquid supply part 200 is connected to the liquid chamber to pump liquid from the liquid chamber.

[0030] In some embodiments, the foam component 500 comprises a first foam net 520, a second foam net 530, and a support ring 540, wherein the first foam net 520 and the second foam net 530 are arranged at the two ends of the support ring 540. The aforementioned outer flange 510 is arranged on the support ring 540.

[0031] Furthermore, the first foam net 520 and the second foam net 530 are detachably connected to the support ring 540, so that if the first foam net 520 and the second foam net 530 become clogged or damaged, the first foam net 520 and the second foam net 530 can be cleaned or replaced, respectively. For example, the first foam net 520 and the second foam net 530 can be attached to the two ends of the support ring 540, or the first foam net 520 and the second foam net 530 can be press-fitted to the two ends of the support ring 540.

[0032] Based on the same inventive concept, the present utility model further provides a handwashing device. The handwashing device comprises the above-mentioned foaming machine.

[0033] It should be noted that the concrete structure of the foaming machine may refer to the contents described in detail in the above embodiments, and it will not be repeated here.

[0034] The terms used in this utility model, such as "top," "bottom," etc., refer to the relative positional relationship of the individual structures in the drawings. They serve only to clarify the description and do not limit the scope of this utility model. Changes or adjustments to their relative relationships also fall within the scope of this utility model, as long as there are no significant changes to the technical content.

[0035] It should be noted that in the present utility model, unless expressly stated and limited otherwise, a first feature "on" or "below" a second feature may mean either that the first and second features are in direct contact, or that the first and second features are in indirectly contact via an intermediate medium. Furthermore, "above," "over," and "on" a first feature with respect to a second feature may mean that the first feature is directly above or diagonally above the second feature, or merely that the horizontal height of the first feature is higher than that of the second feature. "At the bottom of," "below," and "below" a first feature with respect to a second feature may mean that the first feature is directly below or diagonally below the second feature, or merely that the horizontal height of the first feature is lower than that of the second feature.Furthermore, in the present utility model, unless expressly stated and limited otherwise, terms such as "assemble," "connected," "connect," "fix," etc., refer in a broad sense. For example, they may mean that they are firmly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected via an intermediate medium, and they may refer to the internal connection of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of these terms in the present utility model according to the specific situation.

[0036] In the description of the present utility model, reference to terms such as "an embodiment," "some embodiments," "schematic embodiment," "example," "concrete example," or "some examples" indicates that a particular feature, structure, material, or property described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present description, mentions of these terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific feature, structure, material, or property may be combined in one or more embodiments or examples as appropriate.

[0037] Finally, it should be noted that the above embodiments serve only to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they may still modify the technical solutions in the above embodiments or replace some or all of the technical features thereof with equivalent replacements.

Claims

[1] A foam machine, characterized bythat the foam machine comprises a machine body (100), a liquid supply part (200), a first liquid drainage channel (300), a second liquid drainage channel (400), and a foam component (500), wherein the machine body (100) has an intermediate chamber (110) and an inlet (120) and outlet (130) connected to the intermediate chamber (110); the foam component (500) is detachably arranged in the intermediate chamber (110);the liquid outlet of the liquid supply part (200) is connected to one end of the first liquid drainage channel (300), the other end of the first liquid drainage channel (300) is connected to the inlet (120), and the outlet (130) is connected to one end of the second liquid drainage channel (400), so that the gas-liquid mixture provided by the liquid supply part (200) flows successively through the first liquid drainage channel (300), the inlet (120), the foam component (500), the outlet (130), and the second liquid drainage channel (400); [2] The foam machine according to claim 1, characterized by that the intermediate chamber (110) further comprises a mounting opening (140), wherein the foam component (500) is detachably mounted in the intermediate chamber (110) via the mounting opening (140). [3] The foam machine according to claim 2, characterized bythat the foam machine further comprises a closure lid (600), and the closure lid (600) is detachably arranged on the mounting opening (140). [4] The foam machine according to claim 2 or 3, characterized by in that the intermediate chamber (110) comprises an interconnected first chamber (111) and second chamber (112), wherein the inlet (120) is connected to the outlet (130) successively through the first chamber (111) and the second chamber (112), the foam component (500) is at least partially arranged in the second chamber (112) and the mounting opening (140) is directly connected to the first chamber (111). [5] The foam machine according to claim 4, characterized bythat the end of the second chamber (112) adjacent to the first chamber (111) has a gripping groove (113); the end of the foam component (500) adjacent to the second chamber (112) has an outer flange (510), and the outer flange (510) extends at least partially to the gripping groove (113) and has a predetermined distance from the groove base of the gripping groove (113). [6] The foam machine according to claim 4, characterized by that a sealing element is arranged between the foam component (500) and the inner wall surface of the second chamber (112). [7] The foam machine according to claim 2, characterized byin that the machine body (100) comprises a detachably connected upper body (101) and lower body (102), wherein the liquid supply part (200), the first liquid drainage channel (300), the second liquid drainage channel (400), and the foam component (500) are arranged on the upper body (101) and the mounting opening (140) is positioned on the underside of the upper body (101); when the upper body (101) and lower body (102) are connected, the lower body (102) covers the mounting opening (140). [8] The foam machine according to claim 7, characterized by that the lower body (102) has a liquid chamber, wherein the liquid outlet of the liquid supply part (200) is connected to the liquid chamber. [9] The foam machine according to claim 1, characterized bythat the foam component (500) comprises a first foam net (520), a second foam net (530) and a support ring (540), wherein the first foam net (520) and the second foam net (530) are arranged at the two ends of the support ring (540). [10] A hand washing device, characterized by that the hand washing device comprises the foam machine according to one of claims 1 to 9.