An angle valve and a concealed water tank

Abstract

This utility model discloses an angle valve and a concealed water tank. The angle valve includes a valve body, a fixed valve plate, a movable valve plate, and a knob. The valve body has a valve cavity, an inlet port, an outlet port, and a mounting port. The fixed valve plate is fixedly installed between the valve cavity and the outlet port and has a first water passage hole. The movable valve plate is located in the valve cavity and abuts against the fixed valve plate, and has a second water passage hole. The knob is embedded in the valve cavity through the mounting port, and one end of the knob is fixedly connected to the movable valve plate. The knob has a water passage cavity that connects to the inlet port and the second water passage hole. Through structural optimization, this utility model eliminates the need for metal parts. The fixed and movable valve plates, made of ceramic or special engineering plastics, are used for sealing, preventing corrosion and providing excellent durability and sealing reliability. The one-piece molded plastic valve body reduces the risk of leakage and increases reliability.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, and in particular to an angle valve and a concealed water tank. Background Technology

[0002] Early versions of concealed water tank products mostly used copper angle valves. While these valves offered stable quality, they also had drawbacks: higher cost and susceptibility to heavy metal contamination such as lead leaching. Furthermore, the high price of copper and the scarcity of copper ore resources in recent years have made copper angle valves less economical. A related technology discloses an angle valve combining metal and non-metal materials. This newer design involves numerous components and a complex manufacturing process. The assembled structure introduces multiple potential leakage points, particularly as the metal parts are susceptible to corrosion in long-term humid environments. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes an angle valve.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model also proposes a concealed water tank with the aforementioned angle valve.

[0006] The angle valve according to a first aspect embodiment of the present invention includes:

[0007] The valve body is made of plastic and has a valve cavity, an inlet port, an outlet port, and a mounting port. The inlet port, outlet port, and mounting port are all connected to the valve cavity. The outlet port and mounting port are respectively located at both ends of the valve cavity, and the inlet port is located on the side wall of the valve cavity.

[0008] A fixed valve plate is fixedly installed between the valve cavity and the water outlet, and the fixed valve plate is provided with a first water passage hole;

[0009] A movable valve plate is disposed in the valve cavity and abuts against the fixed valve plate, and the movable valve plate is provided with a second water passage hole;

[0010] A knob is embedded in the valve cavity through the mounting port. One end of the knob is fixedly connected to the moving valve plate. The knob is provided with a water passage cavity, which connects the water inlet and the second water passage hole. The knob can rotate between a first position and a second position. When the knob is rotated to the first position, the first water passage hole and the second water passage hole are connected. When the knob is rotated to the second position, the first water passage hole and the second water passage hole are not connected.

[0011] The angle valve according to the embodiment of this utility model has at least the following beneficial effects:

[0012] 1. The fixed valve plate is fixed relative to the valve body, while the fixed valve plate and the movable valve plate can rotate relative to each other. The movable valve plate and the knob are fixed relative to each other. During installation, the fixed valve plate, the movable valve plate, and the knob are sequentially installed into the valve body. After the entire assembly is completed, rotating the knob will cause the movable valve plate to rotate, thereby opening or closing the angle valve. When the angle valve is open, the knob is in the first position, and the first and second water passage holes are aligned and connected, allowing water in the water passage cavity to flow out of the outlet. When the angle valve is closed, the knob is in the second position, and the first and second water passage holes are misaligned and not connected. Water in the water passage cavity is blocked by the fixed and movable valve plates, preventing water flow.

[0013] 2. Through structural optimization, this utility model eliminates the need for metal components. It utilizes ceramic or special engineering plastic valve plates for sealing, preventing corrosion and offering excellent durability and sealing reliability. The ceramic valve plates, in particular, are resistant to aging, corrosion, and wear. The one-piece molded plastic valve body reduces leakage risk and increases reliability. It is suitable for ambient water, light-protected, and humid environments. When used in concealed water tanks, it avoids the problems of light and high-temperature aging of plastic parts, as well as the risks of corrosion and heavy metal leaching.

[0014] According to some embodiments of this utility model, a fixed partition is provided between the valve cavity and the water outlet, the fixed partition is integrally formed with the valve body, the fixed partition is provided with a water outlet hole, the fixed valve plate is fixedly connected to the fixed partition, and the first water passage hole communicates with the water outlet hole.

[0015] According to some embodiments of this utility model, the fixed partition is provided with a positioning post, the fixed valve plate is provided with a positioning hole, and the positioning post is embedded in the positioning hole.

[0016] According to some embodiments of this utility model, the outer periphery of the moving valve plate is provided with a limiting groove, and the inner wall of the valve cavity is provided with a limiting rib. The limiting rib is located in the limiting groove. When the knob is rotated to the first position, the limiting rib abuts against one end of the limiting groove. When the knob is rotated to the second position, the limiting rib abuts against the other end of the limiting groove.

[0017] According to some embodiments of the present invention, one end of the knob is provided with a positioning boss, and the moving valve plate is provided with a positioning groove, and the positioning boss is embedded in the positioning groove.

[0018] According to some embodiments of the present invention, the other end of the knob has a handwheel portion, which is located outside the valve body.

[0019] According to some embodiments of this utility model, it also includes a fixing nut, the inner side of which is provided with a circumferential flange, the flange forming a through hole, the outer peripheral wall of the knob is provided with a limiting step, the fixing nut is threaded to the outer peripheral wall of the mounting port, the limiting step abuts against the inner side of the flange, and the handwheel portion passes through the through hole.

[0020] According to some embodiments of the present invention, the outer peripheral wall of the knob is provided with a sealing groove along its circumference, and a sealing ring is fitted on the sealing groove, with the sealing ring abutting against the inner wall of the knob and the valve cavity.

[0021] The concealed water tank according to a second aspect of the present invention includes the angle valve.

[0022] According to some embodiments of this utility model, the concealed water tank includes a tank body, a water inlet connector, and a locking nut. The tank body is provided with an operating window, and the top of the operating window has a mounting hole. A flange groove is provided on the outer periphery of the mounting hole. A non-circular anti-rotation flange is fixed on the outer peripheral wall of the water inlet connector. The angle valve is located inside the operating window. The lower end of the water inlet connector is threadedly connected to the water inlet interface. The upper end of the water inlet connector passes through the mounting hole and exits the tank body. The locking nut is threadedly connected to the water inlet connector and abuts against the tank body. The anti-rotation flange is embedded in the flange groove to restrict the rotation of the water inlet connector.

[0023] 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

[0024] 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:

[0025] Figure 1 This is a schematic diagram of the overall structure of the angle valve of this utility model;

[0026] Figure 2 This is an exploded view of the angle valve of this utility model;

[0027] Figure 3 This is a cross-sectional view (open state) of the angle valve of this utility model;

[0028] Figure 4 This is a cross-sectional view of the valve body of this utility model;

[0029] Figure 5 This is a structural diagram of the fixed partition of this utility model;

[0030] Figure 6This is a structural diagram of the knob of this utility model;

[0031] Figure 7 This is a structural diagram of the valve plate of this utility model;

[0032] Figure 8 This is a structural diagram of the moving valve plate of this utility model;

[0033] Figure 9 This is a schematic diagram (first-person view) of the installation of the angle valve of this utility model in a hidden water tank;

[0034] Figure 10 This is a schematic diagram (second perspective) of the installation of the angle valve of this utility model in a hidden water tank.

[0035] Reference numerals: Valve body 100, Valve cavity 110, Limiting rib 111, Inlet port 120, Outlet port 130, Mounting port 140, Fixed partition 150, Outlet hole 151, Positioning column 152, Fixed valve plate 200, First water passage hole 210, Positioning hole 220, Moving valve plate 300, Second water passage hole 310, Limiting groove 320, Positioning groove 330, Knob 400, Water passage cavity 410, Positioning boss 420, Limiting step 430, Sealing groove 440, Handwheel part 450, Fixed nut 500, Edge retainer 510, Through hole 520, Sealing ring 600, Housing 700, Operating window 710, Flange groove 712, Inlet connector 800, Anti-rotation flange 810, Locking nut 900, Inlet valve 1000. Detailed Implementation

[0036] 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.

[0037] Reference Figure 1-8 An angle valve, comprising:

[0038] The valve body 100 is made of plastic and has a valve cavity 110, an inlet port 120, an outlet port 130, and a mounting port 140. The overall appearance of the valve body 100 is T-shaped and the valve body 100 is an integrated design. The inlet port 120, the outlet port 130, and the mounting port 140 are all connected to the valve cavity 110. The outlet port 130 and the mounting port 140 are respectively located at both ends of the valve cavity 110, and the inlet port 120 is located on the side wall of the valve cavity 110.

[0039] The fixed valve plate 200, made of ceramic, is fixedly installed between the valve cavity 110 and the water outlet 130. The fixed valve plate 200 is provided with a first water passage hole 210.

[0040] The movable valve plate 300, made of ceramic, is located in the valve cavity 110 and abuts against the fixed valve plate 200. The movable valve plate 300 is provided with a second water passage hole 310. The number of the first water passage hole 210 and the second water passage hole 310 is not limited, as long as the water passage area can meet the water inlet flow requirements of the inlet valve 1000.

[0041] The knob 400 is embedded in the valve cavity 110 through the mounting port 140. One end of the knob 400 is fixedly connected to the movable valve plate 300. The knob 400 is provided with a water passage cavity 410, which is connected to the water inlet 120 and the second water passage hole 310. The knob 400 can rotate between a first position and a second position. When the knob 400 is rotated to the first position, the first water passage hole 210 and the second water passage hole 310 are connected. When the knob 400 is rotated to the second position, the first water passage hole 210 and the second water passage hole 310 are not connected.

[0042] Working principle: The fixed valve plate 200 is fixed relative to the valve body 100, and the fixed valve plate 200 and the movable valve plate 300 can rotate relative to each other. The movable valve plate 300 and the knob 400 are fixed relative to each other. During installation, the fixed valve plate 200, the movable valve plate 300 and the knob 400 are installed into the valve body 100 in sequence. After the whole assembly, when the knob 400 is rotated, the rotation of the knob 400 can drive the movable valve plate 300 to rotate, so as to open or close the angle valve. When the angle valve is open, the knob 400 is in the first position, the first water passage hole 210 and the second water passage hole 310 are aligned and connected, and the water in the water passage cavity 410 can flow out of the water outlet 130. When the angle valve is closed, the knob 400 is in the second position, the first water passage hole 210 and the second water passage hole 310 are misaligned and not connected, and the water in the water passage cavity 410 is blocked by the fixed valve plate 200 and the movable valve plate 300, and the water cannot pass through.

[0043] In some embodiments of this utility model, a fixed partition 150 is provided between the valve cavity 110 and the water outlet 130. The fixed partition 150 is integrally formed with the valve body 100. The fixed partition 150 is provided with a water outlet hole 151. The fixed valve plate 200 is fixedly connected to the fixed partition 150, and the first water passage hole 210 communicates with the water outlet hole 151. The fixed partition 150 provides a stable installation position and connection base for the fixed valve plate 200, ensuring that the fixed valve plate 200 does not shift during the rotation of the moving valve plate 300. The fixed partition 150 is integrally formed with the valve body 100, reducing the number of parts and improving assembly efficiency.

[0044] In some embodiments of this utility model, a positioning post 152 is provided on the fixed partition 150, and a positioning hole 220 is provided on the fixed valve plate 200. The positioning post 152 is embedded in the positioning hole 220. The cooperation between the positioning post 152 and the positioning hole 220 can strictly limit the installation position of the fixed valve plate 200 relative to the fixed partition 150, ensuring that the first water passage hole 210 on the fixed valve plate 200 is precisely aligned with the water outlet hole 151 on the fixed partition 150.

[0045] In some embodiments of this utility model, a limiting groove 320 is provided on the outer periphery of the movable valve plate 300, and a limiting rib 111 is provided on the inner wall of the valve cavity 110. The limiting rib 111 is located within the limiting groove 320. When the knob 400 is rotated to the first position, the limiting rib 111 abuts against one end of the limiting groove 320. When the knob 400 is rotated to the second position, the limiting rib 111 abuts against the other end of the limiting groove 320. The cooperation between the limiting rib 111 and the limiting groove 320 can limit the rotation angle of the movable valve plate 300.

[0046] In some embodiments of this utility model, one end of the knob 400 is provided with a positioning boss 420, and the movable valve plate 300 is provided with a positioning groove 330, with the positioning boss 420 embedded in the positioning groove 330. Specifically, there are two positioning bosses 420, located on the outer peripheral edge of the knob 400, and the positioning groove 330 is located on the outer periphery of the movable valve plate 300. The engagement of the positioning boss 420 and the positioning groove 330 can strictly limit the relative circumferential position of the knob 400 and the movable valve plate 300, ensuring that there is no relative rotation after assembly, and ensuring that the knob 400 can synchronously and accurately drive the movable valve plate 300 to rotate when it rotates.

[0047] In some embodiments of this utility model, the other end of the knob 400 has a handwheel portion 450, which is located outside the valve body 100. The handwheel portion 450 is exposed outside the valve body 100 when the angle valve is installed, serving as the operating end that the user directly contacts, allowing the user to more easily apply rotational force and quickly and effortlessly turn the knob 400 to open or close the angle valve.

[0048] In some embodiments of this utility model, a fixing nut 500 is further included. A retaining edge 510 is provided circumferentially on the inner side of the fixing nut 500, forming a through hole 520. A limiting step 430 is provided on the outer peripheral wall of the knob 400. The fixing nut 500 is threadedly connected to the outer peripheral wall of the mounting port 140. The limiting step 430 abuts against the inner side of the retaining edge 510. The handwheel portion 450 passes through the through hole 520. After the fixing nut 500 is tightened by the threaded connection to the outer peripheral wall of the mounting port 140, the inner side of its retaining edge 510 abuts against the limiting step 430 of the knob 400, forming an axial constraint. This firmly locks the knob 400 within the valve cavity 110, preventing the knob 400 from axially loosening, shifting, or even falling off due to water flow impact, vibration, or external operating force, thus ensuring the stability of the overall structure. The threaded connection method facilitates the assembly of the angle valve: first, install the fixed valve plate 200, the moving valve plate 300, and the knob 400 into the valve body 100 in sequence, and then lock them with the fixing nut 500 to complete the assembly of the core components. If maintenance or replacement of internal parts is required later, simply unscrew the fixing nut 500 to remove the knob 400 and the moving valve plate 300, making the operation convenient.

[0049] In some embodiments of this utility model, a sealing groove 440 is provided on the outer peripheral wall of the knob 400 along its circumference, and a sealing ring 600 is fitted on the sealing groove 440. The sealing ring 600 abuts against the inner wall of the valve cavity 110. The sealing ring 600 forms an elastic sealing surface between the knob 400 and the inner wall of the valve cavity 110, which can effectively prevent water in the valve cavity 110 from leaking out of the valve body 100 through the gap between the knob 400 and the mounting port 140. Especially when the angle valve is open, it can prevent high-pressure water from overflowing along the outer periphery of the knob 400, ensuring the sealing reliability of the angle valve.

[0050] Reference Figure 9-10 A concealed water tank, including an angle valve.

[0051] In some embodiments of this utility model, the concealed water tank includes a tank body 700, a water inlet connector 800, and a locking nut 900. The tank body 700 has an operating window 710 with a mounting hole at its top. A flange groove 712 is provided around the mounting hole. A non-circular anti-rotation flange 810 is fixed to the outer wall of the water inlet connector 800. An angle valve is located inside the operating window 710. The lower end of the water inlet connector 800 is threadedly connected to the water inlet interface 120, and the upper end of the water inlet connector 800 extends out of the tank body 700 through the mounting hole. The locking nut 900 is threadedly connected to the water inlet connector 800 and abuts against the tank body 700. The anti-rotation flange 810 is embedded in the flange groove 712 to restrict the rotation of the water inlet connector 800. In existing ultra-thin concealed water tanks, during after-sales maintenance or disassembly of the water inlet valve 1000, due to the space obstruction of the angle valve, the angle valve must be disassembled before the water inlet valve 1000 can be removed. The installation sequence is reversed; the inlet valve 1000 must be installed first, followed by the angle valve. This is very inconvenient in confined spaces, resulting in low construction efficiency and high labor costs. The angle valve of this invention is smaller and installed at the top of the operating window 710, without interfering with the inlet valve 1000. It does not affect the removal and installation of the inlet valve 1000. When maintaining the concealed water tank, the inlet valve 1000 can be removed and installed without disassembling the angle valve, reducing the maintenance scope, reducing labor time, and improving efficiency. The angle valve is limited by the anti-rotation flange 810 and the flange groove 712, restricting the circumferential freedom.

[0052] 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. An angle valve, characterized in that, include: The valve body (100) is made of plastic and has a valve cavity (110), a water inlet (120), a water outlet (130), and a mounting port (140). The water inlet (120), the water outlet (130), and the mounting port (140) are all connected to the valve cavity (110). The water outlet (130) and the mounting port (140) are respectively located at both ends of the valve cavity (110), and the water inlet (120) is located on the side wall of the valve cavity (110). A fixed valve plate (200) is fixedly installed between the valve cavity (110) and the water outlet (130), and the fixed valve plate (200) is provided with a first water passage hole (210); A movable valve plate (300) is disposed in the valve cavity (110) and abuts against the fixed valve plate (200). The movable valve plate (300) is provided with a second water passage hole (310). A knob (400) is embedded in the valve cavity (110) through the mounting port (140). One end of the knob (400) is fixedly connected to the moving valve plate (300). The knob (400) is provided with a water passage cavity (410). The water passage cavity (410) is connected to the water inlet (120) and the second water passage hole (310). The knob (400) can rotate between a first position and a second position. When the knob (400) is rotated to the first position, the first water passage hole (210) and the second water passage hole (310) are connected. When the knob (400) is rotated to the second position, the first water passage hole (210) and the second water passage hole (310) are not connected.

2. The angle valve according to claim 1, characterized in that, A fixed partition (150) is provided between the valve cavity (110) and the water outlet (130). The fixed partition (150) is integrally formed with the valve body (100). A water outlet hole (151) is provided on the fixed partition (150). The fixed valve plate (200) is fixedly connected to the fixed partition (150). The first water passage hole (210) is connected to the water outlet hole (151).

3. The angle valve according to claim 2, characterized in that, The fixed partition (150) is provided with a positioning post (152), and the fixed valve plate (200) is provided with a positioning hole (220). The positioning post (152) is embedded in the positioning hole (220).

4. The angle valve according to claim 1, characterized in that, The outer periphery of the moving valve plate (300) is provided with a limiting groove (320), and the inner wall of the valve cavity (110) is provided with a limiting rib (111). The limiting rib (111) is located in the limiting groove (320). When the knob (400) is rotated to the first position, the limiting rib (111) abuts against one end of the limiting groove (320). When the knob (400) is rotated to the second position, the limiting rib (111) abuts against the other end of the limiting groove (320).

5. The angle valve according to claim 1, characterized in that, One end of the knob (400) is provided with a positioning boss (420), and the moving valve plate (300) is provided with a positioning groove (330), and the positioning boss (420) is embedded in the positioning groove (330).

6. The angle valve according to claim 1, characterized in that, The other end of the knob (400) has a handwheel portion (450), which is located outside the valve body (100).

7. The angle valve according to claim 6, characterized in that, It also includes a fixing nut (500), the inner side of which is provided with a retaining edge (510) along the circumferential direction, the retaining edge (510) forming a through hole (520), the outer peripheral wall of the knob (400) is provided with a limiting step (430), the fixing nut (500) is threaded to the outer peripheral wall of the mounting port (140), the limiting step (430) abuts against the inner side of the retaining edge (510), and the handwheel part (450) passes through the through hole (520).

8. The angle valve according to claim 1, characterized in that, The outer peripheral wall of the knob (400) is provided with a sealing groove (440) along its circumference, and a sealing ring (600) is fitted on the sealing groove (440). The sealing ring (600) abuts against the inner wall of the knob (400) and the valve cavity (110).

9. A concealed water tank, characterized in that, Includes the angle valve as described in any one of claims 1-8.

10. The concealed water tank according to claim 9, characterized in that, The device includes a housing (700), a water inlet connector (800), and a locking nut (900). The housing (700) has an operating window (710) with a mounting hole at the top. A flange groove (712) is provided on the outer periphery of the mounting hole. A non-circular anti-rotation flange (810) is fixed on the outer periphery of the water inlet connector (800). The angle valve is located inside the operating window (710). The lower end of the water inlet connector (800) is threadedly connected to the water inlet interface (120). The upper end of the water inlet connector (800) passes through the mounting hole and exits the housing (700). The locking nut (900) is threadedly connected to the water inlet connector (800) and abuts against the housing (700). The anti-rotation flange (810) is embedded in the flange groove (712) to restrict the rotation of the water inlet connector (800).

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