Drainage system, shower valve and shower unit

Abstract

This utility model discloses a drainage device, a shower valve, and a shower device, including a main body and a piston assembly. The main body has a water inlet, a water passage cavity, a drainage channel, and a water outlet for communicating with the shower rod. The piston assembly is movably disposed in the water passage cavity. The piston assembly includes a piston and a spring. The piston is movably disposed between the water inlet and the drainage channel. The two ends of the spring abut against the inner wall of the water passage cavity and the piston, respectively. When no water flows in from the water inlet, the spring pushes against the piston to close the water inlet. The drainage channel and the water outlet are both connected to the water passage cavity. When water flows in from the water inlet, the piston compresses the spring and blocks the drainage channel. The water inlet and the water outlet are both connected to the water passage cavity. According to the drainage device of this utility model, when the user finishes using the shower device, the water remaining in the shower rod will re-enter the water passage cavity through the water outlet due to its own weight and be automatically drained away through the drainage channel, preventing water accumulation in the shower rod.

Description

Technical Field

[0001] This utility model relates to the field of bathroom equipment, and in particular to a drainage device, a shower valve, and a shower device. Background Technology

[0002] Existing shower systems typically include a shower valve, shower head, and overhead shower. The shower valve and overhead shower are connected by an internal water-permeable shower rod to supply water to the overhead shower. After showering, the switch on the shower valve is turned off. At this time, a certain amount of water remains inside the shower rod. This not only causes limescale buildup and bacterial growth, but also, in winter, the water cools down after the user has used hot water. When the user uses the shower again, the cooled water will be the first to flow out, resulting in a poor user experience. Summary of the Invention

[0003] This utility model proposes a drainage device, a shower valve, and a shower device, aiming to solve the technical problem that water accumulation inside the shower rod in the prior art leads to a poor user experience.

[0004] To achieve the above objectives, a first aspect of this utility model provides a drainage device, comprising: The main body includes a water inlet, a water passage cavity, a drainage channel, and a water outlet for communication with a shower rod. In the water inlet direction, the water inlet, the water passage cavity, and the drainage channel are connected in sequence, and the water passage cavity is also connected to the water outlet. A piston assembly is movably disposed in the water passage cavity. The piston assembly includes a piston and a spring. The piston is movably disposed between the water inlet and the drainage channel. One end of the spring abuts against the side of the piston facing away from the water inlet, and the other end abuts against the inner wall of the water passage cavity. When no water flows in from the inlet, the spring pushes against the piston to close the inlet. The drainage channel and the outlet are both connected to the water passage cavity. When water flows in from the inlet, the piston compresses the spring and blocks the drainage channel. The inlet and the outlet are both connected to the water passage cavity.

[0005] According to the first aspect of the present invention, when the user finishes using the shower device, the piston returns to the position of closing the inlet, and the drain device returns to the state where the drain channel and the outlet are connected to the water passage cavity. Therefore, the water remaining in the shower rod will re-enter the water passage cavity through the outlet due to its own weight, and will be automatically drained away through the drain channel, so that no water will accumulate in the shower rod.

[0006] According to some embodiments of the present invention, a limiting groove is provided on the side of the piston near the drainage channel, and the end of the spring that abuts against the piston is disposed in the limiting groove.

[0007] According to some embodiments of the present invention, a stopper rod is provided on the side of the piston near the drainage channel, and the spring is sleeved on the stopper rod.

[0008] According to some embodiments of the present invention, a guide cylinder is provided in the drainage channel, and the plug rod is slidably inserted in the guide cylinder.

[0009] According to some embodiments of this utility model, in the sliding direction of the stopper rod, at least one of the outer peripheral wall of the stopper rod and the inner peripheral wall of the guide cylinder is provided with ribs, or... In the sliding direction of the stopper rod, one of the projections of the stopper rod and the inner wall of the guide cylinder is a circle, and the other is a polygon.

[0010] According to some embodiments of the present invention, the piston assembly further includes a temperature sensing element disposed between the piston and the water inlet. When hot water flows in from the water inlet, the temperature sensing element extends along the moving direction of the piston and abuts against the piston, and the force exerted by the temperature sensing element on the piston is greater than the elastic force of the spring on the piston.

[0011] According to some embodiments of the present invention, the main body includes a first shell and a second shell, the water inlet and the water outlet are disposed on the first shell, the drainage channel is disposed on the second shell, and the first shell and the second shell enclose the water passage cavity.

[0012] According to some embodiments of the present invention, the main body includes a first housing, the first housing includes a bottom wall and a side wall, the water inlet is disposed on the bottom wall and / or side wall of the first housing, the water outlet is disposed on the side wall of the first housing, and the temperature sensing element is disposed between the piston and the bottom wall.

[0013] A second aspect of this utility model provides a shower valve, including the aforementioned drainage device.

[0014] A third aspect of this utility model provides a shower device, including: the aforementioned drainage device or shower valve, and further including: A shower rod, wherein the shower rod is connected to the drainage device through the water outlet.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 An assembly diagram of the shower valve and shower rod provided in an embodiment of the present invention is shown; Figure 2 A schematic diagram of the drainage device provided in an embodiment of the present invention is shown; Figure 3 It shows Figure 2 The diagram shows the structure of the drainage device. Figure 4 It shows Figure 2 An exploded view of the drainage device is shown. Figure 5 A schematic diagram of the piston structure provided in an embodiment of the present invention is shown; Figure 6 A schematic diagram of the structure of the second housing provided in an embodiment of the present invention is shown; Figure 7 A schematic diagram of a drainage device provided in another embodiment of the present invention is shown; Figure 8 It shows Figure 7 The diagram shows the structure of the drainage device. Figure 9 It shows Figure 7 An exploded view of the drainage device is shown. Figure label: 1000. Drainage device; 100. First shell; 110. Bottom wall; 111. Inlet; 120. Side wall; 121. Outlet; 130. Water passage cavity; 200, Second housing; 210, Drainage channel; 220, Guide cylinder; 230, Connecting plate; 300. Piston assembly; 310. Piston; 311. Annular rib; 312. Limiting groove; 313. Plug rod; 320. Spring; 330. Temperature sensing spring; 2000, Shower valve; 3000, Shower rod. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] refer to Figure 1 and Figure 2 In some specific embodiments of this utility model, a drainage device 1000 is provided, which can be installed in the shower valve 2000. The shower valve 2000 can be a component of the shower device, cooperating with the shower rod 3000, shower head, etc. to complete water output. Specifically, water can enter the shower valve 2000, and then enter the shower rod 3000 through the drainage device 1000, finally spraying out from the shower head for user use. When the shower device is finished and the water inlet 111 is closed, the water remaining in the shower rod 3000 can move downwards by its own weight and be drained away through the drainage device 1000, avoiding the growth of scale and bacteria from residual water, or the water becoming cold in winter and affecting the user experience.

[0019] refer to Figure 2-4 The drainage device 1000 of this utility model embodiment includes a main body and a piston assembly 300, the piston assembly 300 being movably disposed in the main body.

[0020] Specifically, the main body is equipped with a water inlet 111, a water passage 130, a drainage channel 210, and a water outlet 121. The water inlet 111 can be connected to a water source such as a municipal water pipe or a water heater outlet. The water outlet 121 is connected to the shower rod 3000, and the water flowing out of the water outlet 121 can flow into the shower rod 3000. In the water inlet direction of the water inlet 111, the water inlet 111, the water passage 130, and the drainage channel 210 are connected in sequence, and the water passage 130 is also connected to the water outlet 121. Thus, the water flowing in from the water inlet 111 can flow into the water passage 130, and after flowing through the water outlet 121, it enters the shower rod 3000. The water in the water passage 130 can also be drained away through the drainage channel 210.

[0021] The piston assembly 300 is movably disposed in the water passage cavity 130. The piston assembly 300 includes a piston 310 and a spring 320. The piston 310 is disposed between the water inlet 111 and the drain channel 210. One end of the spring 320 abuts against the side of the piston 310 facing away from the water inlet 111, and the other end abuts against the inner wall of the water passage cavity 130.

[0022] When no water flows in from the inlet 111, the piston 310 closes the inlet 111 under the elastic force of the spring 320. At this time, the drain channel 210 and the outlet 121 are both connected to the water passage 130. When water flows in from the inlet 111, the water pressure drives the piston 310 to compress the spring 320. The piston 310 moves towards the drain channel 210 and finally blocks the drain channel 210. At this time, the inlet 111 and the outlet 121 are both connected to the water passage 130. Thus, the water flowing in from the inlet 111 can enter the shower rod 3000 from the outlet 121 and be sprayed out by the top spray for the user.

[0023] It should be noted here that "when no water flows in from inlet 111" includes at least the following two situations: 1. In the initial state (such as never being used or not being used for a long time), the spring 320 is in a compressed state, so it continuously provides elastic force to the piston 310 to close the inlet 111; 2. When the user finishes using the shower device, the water flow stops. At this time, the spring 320 is no longer affected by the water pressure. The piston 310, which blocks the drain channel 210, is reset to the position of closing the inlet 111 by the elastic force of the spring 320. At this time, the drain device 1000 returns to the state where both the drain channel 210 and the outlet 121 are connected to the water passage 130.

[0024] According to the drainage device 1000 provided in this utility model embodiment, after the user finishes using the shower device, the piston 310 returns to the position of closing the inlet 111, and the drainage device 1000 returns to the state where both the drainage channel 210 and the outlet 121 are connected to the water passage chamber 130. Therefore, the water remaining in the shower rod 3000 will fall back into the water passage chamber 130 through the outlet 121 due to its own weight, and will be automatically drained away through the drainage channel 210, so that no water will accumulate in the shower rod 3000.

[0025] Understandably, the other end of the drainage channel 210 can be connected to a water storage and water use device such as a wastewater tank or toilet tank to reuse the accumulated water, or it can be connected to a water source connected to the inlet 111 to recycle the accumulated water.

[0026] refer to Figure 5 In some specific embodiments of this utility model, a limiting groove 312 is provided on the side of the piston 310 near the drainage channel 210, and the end of the spring 320 that abuts against the piston 310 is disposed in the limiting groove 312. Specifically, an annular rib 311 may extend from the surface of the piston 310 near the drainage channel 210 to form the limiting groove 312. This prevents slippage between the spring 320 and the piston 310, thus avoiding affecting the normal movement and function of the piston 310.

[0027] refer to Figure 5 In some specific embodiments of this utility model, a long, narrow rod 313 extends from the side of the piston 310 near the drain channel 210, and a spring 320 is sleeved on the rod 313. Thus, the spring 320 can be radially limited during deformation, preventing skewing that could affect the normal movement and function of the piston 310.

[0028] In some other specific embodiments of this utility model, the limiting groove 312 and the stopper rod 313 are simultaneously provided on the piston 310. For example, the annular rib 311 surrounds the stopper rod 313 in the circumferential direction and together with the stopper rod 313 forms the limiting groove 312.

[0029] refer to Figure 6 In some specific embodiments of this utility model, a guide cylinder 220 is provided in the drainage channel 210, and the stopper rod 313 slides through the guide cylinder 220. Thus, the piston 310 can also be limited and guided during the movement process, preventing the piston 310 from deviating from the preset path and affecting the opening and closing of the inlet 111 or the outlet channel.

[0030] refer to Figure 6 In this embodiment, several connecting plates 230 may extend from the inner peripheral wall of the drainage channel 210, and the guide cylinder 220 may be connected to several connecting plates 230 and fixed in the drainage channel 210.

[0031] Furthermore, the spring 320 abuts against one end of the inner wall of the water passage cavity 130, specifically it can abut against one end wall of the guide cylinder 220 or against the connecting plate 230, which is not limited here.

[0032] In some specific embodiments of this utility model, in the sliding direction of the stopper rod 313, at least one of the outer peripheral wall of the stopper rod 313 and the inner peripheral wall of the guide cylinder 220 is provided with ribs (not shown). By providing ribs, the contact area between the outer peripheral wall of the stopper rod 313 and the inner peripheral wall of the guide cylinder 220 can be reduced, thereby reducing the friction and resistance when the stopper rod 313 slides in the guide cylinder 220.

[0033] refer to Figure 3 and Figure 6 In other specific embodiments of the utility model, in the sliding direction of the stopper rod 313, one of the projections of the stopper rod 313 and the inner wall of the guide cylinder 220 is a circle, and the other is a polygon, such as a triangle or a polygon in a positive direction. This shape setting can also reduce the contact area between the outer peripheral wall of the stopper rod 313 and the inner peripheral wall of the guide cylinder 220, thereby reducing the friction and resistance when the stopper rod 313 slides in the guide cylinder 220.

[0034] refer to Figure 7-9In other specific embodiments of the utility model, the piston assembly 300 further includes a temperature sensing element, such as a temperature sensing spring 330 or a temperature sensing bulb. The temperature sensing element is disposed between the piston 310 and the water inlet 111, specifically, between the inner wall of the main body where the water inlet 111 is located and the piston 310. When hot water flows in from the water inlet 111, the water pressure pushes the piston 310 to the position of blocking the drain channel 210. Both the water inlet 111 and the water outlet 121 are connected to the water passage 130, and hot water can flow into the shower rod 3000. At this time, under the action of hot water, the temperature sensing element gradually deforms and extends along the moving direction of the piston 310 and finally abuts against the piston 310. At this time, the force exerted by the temperature sensing element on the piston 310 is greater than the elastic force of the spring 320 on the piston 310.

[0035] In this embodiment of the present invention, when the user uses hot water, after the water inlet of the shower device is closed, the water remaining in the shower device for a period of time is still hot. At this time, although the water pressure no longer acts on the piston 310 and the spring 320, and the spring 320 provides the piston 310 with the elastic force to reset it, the drain channel 210 is still closed because the force of the temperature sensing element on the piston 310 is greater than the elastic force of the spring 320. The temperature sensing element will gradually return to its original shape and length until the residual water in the shower device gradually cools down, and the spring 320 can push the piston 310 to reset and connect the drain channel 210 to realize drainage.

[0036] Therefore, when the shower device temporarily stops supplying water (such as temporarily turning off the water to use shower gel or shampoo), it will not immediately drain the water after stopping the supply, thus avoiding water waste and making it more convenient to use.

[0037] refer to Figure 2-4 7-9 In some specific embodiments of this utility model, the main body includes a first shell 100 and a second shell 200, an inlet 111 and an outlet 121 are both provided on the first shell 100, a drainage channel 210 is provided on the second shell 200, and the first shell 100 and the second shell 200 form a water passage cavity 130.

[0038] refer to Figure 2-47-9. In some specific embodiments of this utility model, the first housing 100 includes a bottom wall 110 and a side wall 120. An outlet 121 is disposed on the side wall 120, and an inlet 111 can be disposed on the bottom wall 110 and / or the side wall 120. It is understood that there can be multiple inlets 111, with some inlets disposed on the bottom wall 110 and others on the side wall 120, which helps to increase the water inlet area and ensure water supply flow. The outlet 121 is disposed on the side wall 120 of the first housing 100. A temperature sensing element is disposed between the piston 310 and the bottom wall 110. Thus, when water flows in through the inlet 111, it wets the temperature sensing element. When the temperature sensing element deforms and extends, one end abuts against the bottom wall 110 as a point of force, and the other end extends to abut against the piston 310. Therefore, even if water intake is temporarily stopped, the temperature sensing element can still keep the piston 310 in the closed drainage channel 210 position.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A drainage device, characterized in that, include: The main body includes a water inlet, a water passage cavity, a drainage channel, and a water outlet for communication with a shower rod. In the water inlet direction, the water inlet, the water passage cavity, and the drainage channel are connected in sequence, and the water passage cavity is also connected to the water outlet. A piston assembly is movably disposed in the water passage cavity. The piston assembly includes a piston and a spring. The piston is movably disposed between the water inlet and the drainage channel. One end of the spring abuts against the side of the piston facing away from the water inlet, and the other end abuts against the inner wall of the water passage cavity. When no water flows in from the inlet, the spring pushes against the piston to close the inlet. The drainage channel and the outlet are both connected to the water passage cavity. When water flows in from the inlet, the piston compresses the spring and blocks the drainage channel. The inlet and the outlet are both connected to the water passage cavity.

2. The drainage device according to claim 1, characterized in that, A limiting groove is provided on the side of the piston near the drainage channel, and the end of the spring that abuts against the piston is located in the limiting groove.

3. The drainage device according to claim 1, characterized in that, A stopper rod is provided on the side of the piston near the drainage channel, and the spring is sleeved on the stopper rod.

4. The drainage device according to claim 3, characterized in that, A guide cylinder is provided in the drainage channel, and the plug rod slides through the guide cylinder.

5. The drainage device according to claim 4, characterized in that, In the sliding direction of the stopper rod, at least one of the outer peripheral wall of the stopper rod and the inner peripheral wall of the guide cylinder is provided with ribs, or... In the sliding direction of the stopper rod, one of the projections of the stopper rod and the inner wall of the guide cylinder is a circle, and the other is a polygon.

6. The drainage device according to claim 1, characterized in that, The piston assembly also includes a temperature sensing element disposed between the piston and the water inlet. When hot water flows in from the water inlet, the temperature sensing element extends along the movement direction of the piston and abuts against the piston, and the force exerted by the temperature sensing element on the piston is greater than the elastic force of the spring on the piston.

7. The drainage device according to any one of claims 1-6, characterized in that, The main body includes a first shell and a second shell. The water inlet and the water outlet are disposed on the first shell, and the drainage channel is disposed on the second shell. The first shell and the second shell enclose the water passage cavity.

8. The drainage device according to claim 6, characterized in that, The main body includes a first housing, the first housing includes a bottom wall and a side wall, the water inlet is disposed on the bottom wall and / or side wall of the first housing, the water outlet is disposed on the side wall of the first housing, and the temperature sensing element is disposed between the piston and the bottom wall.

9. A shower valve, characterized in that, Includes the drainage device as described in any one of claims 1-8.

10. A shower device, characterized in that, Including the drainage device as described in any one of claims 1-8, or the shower valve as described in claim 9, further comprising: A shower rod, wherein the shower rod is connected to the drainage device through the water outlet.

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