Push-rotate ceramic valve core capable of automatically discharging residual water in pipe
By designing a press-rotating ceramic valve core that automatically drains residual water from pipes, the problems of residual water dripping and clogging in water pipes are solved, achieving automatic drainage and filtration functions and extending the service life of the valve core.
Patent Information
- Application Number
- CN202521672237.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-07
AI Technical Summary
The existing push-button valve core cannot automatically drain residual water from the water pipe, resulting in dripping, freezing and scaling problems, and it is easily blocked by mud and debris.
A press-to-drain ceramic valve core was designed to automatically discharge residual water from the pipe. The water is automatically discharged by rotating the ceramic disc, and impurities are filtered when the valve is closed. The ceramic disc is used as a water sealing element to extend its service life.
It enables automatic discharge of residual water from water pipes, avoiding problems such as freezing and scaling, and also has a filtration function, extending the service life of the valve core.
Smart Images

Figure CN224680152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve core technology, specifically to a press-rotary ceramic valve core for automatically draining residual water from a pipe. Background Technology
[0002] The push-button valve core, a common accessory for faucets, is used to turn the faucet on and off, providing stable control over the inlet and outlet water flow. However, existing exposed shower faucets, concealed shower faucets, floor-standing bathtub faucets, and bathtub-side faucets suffer from problems such as residual water dripping from the pipes after the control valve is closed. This dripping continues until all the water in the pipes has drained, leading to issues like the pipes freezing and cracking at extremely low temperatures, and scaling on the silicone nozzles of overhead and handheld showerheads due to the retained water. Furthermore, existing push-button valve cores cannot automatically remove sediment and debris, easily causing blockages. They are also highly sensitive to water quality, resulting in unsatisfactory performance. Therefore, to avoid these shortcomings, improvements to the existing technology are necessary. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and to provide a press-rotary ceramic valve core for automatically draining residual water from pipes.
[0004] This utility model is achieved through the following technical solution:
[0005] A press-rotary ceramic valve core for automatically draining residual water from a pipe includes an upper outer shell and a lower outer shell mounted at the bottom of the upper outer shell. A press-rotary device is installed on the inner side of the upper outer shell, and a rotating ceramic disc wheel is connected to the bottom of the press-rotary device. A rotating ceramic disc is installed at the bottom of the rotating ceramic disc wheel. A fixed ceramic disc is installed on the inner side of the lower outer shell, which contacts the rotating ceramic disc. A water inlet is provided on the outer side of the rotating ceramic disc, and a water outlet corresponding to the water inlet is provided on the fixed ceramic disc. A drain hole corresponding to the water outlet is provided on the inner side of the rotating ceramic disc. A water inlet corresponding to the water inlet is provided on the outer side of the lower part of the lower outer shell. A drain channel communicating with the drain hole is provided on the rotating ceramic disc wheel. A drain outlet communicating with the drain channel is provided on the outer side of the upper part of the lower outer shell. A filter screen is provided at the bottom of the lower outer shell.
[0006] Furthermore, the pressing and rotating device includes a pressing rod, a rotating rod connected to the bottom of the pressing rod, a toggle rod connected to the bottom of the rotating rod, the bottom of the toggle rod connected to the rotating ceramic disc wheel, an outer spring abutting against the rotating rod installed on the top of the lower housing, and an inner spring abutting against the rotating rod installed on the inner side of the toggle rod.
[0007] Furthermore, an upper wear-resistant ring is provided at the contact point between the outer spring and the rotating rod.
[0008] Furthermore, a wear-resistant ring is provided at the contact point between the toggle lever and the lower housing.
[0009] Furthermore, a lower wear-resistant ring is provided at the contact point between the rotating ceramic disc wheel and the lower outer shell.
[0010] Furthermore, a V-shaped sealing ring is provided at the connection between the rotating ceramic disc wheel and the lower outer shell.
[0011] Furthermore, the bottom of the lower housing is provided with a bottom sealing ring for installing the filter screen.
[0012] Furthermore, a first O-ring is fitted on the outer side of the upper outer shell, a second O-ring is fitted on the outer side of the lower outer shell, and a third O-ring is provided at the connection between the upper and lower outer shells.
[0013] Furthermore, a fourth O-ring is provided on the outer side of the rotating ceramic disc wheel.
[0014] Furthermore, a sealing ring is provided at the connection between the rotating ceramic disc wheel and the rotating ceramic disc.
[0015] Compared to existing technologies, this utility model features a water inlet on the outer side of a rotating ceramic disc, a water outlet corresponding to the water inlet on a fixed ceramic disc, a drain hole corresponding to the water outlet on the inner side of the rotating ceramic disc, a water inlet on the outer side of the lower outer shell corresponding to the water inlet, a drain channel communicating with the drain hole on the rotating ceramic disc wheel, a drain outlet communicating with the drain channel on the outer side of the upper outer shell, and a filter screen at the bottom of the lower outer shell. When the pressing and rotating device is pressed, the rotating ceramic disc wheel and the rotating ceramic disc rotate 90 degrees. Cyclic pressing achieves the opening and closing function. When the water inlet and water outlet are connected, it is in normal water output mode; when the drain hole and water outlet are connected, it is in drain mode, simultaneously closing the water outlet channel. Due to the weight of the water, residual water in the pipe is automatically and quickly discharged, resulting in good performance and the following beneficial effects:
[0016] 1. Using ceramic discs as sealing components can extend the service life of the valve core.
[0017] 2. The requirements for water quality are not very high.
[0018] 3. It has a drainage function, which can drain residual water in the pipe, effectively solving the problem of water pipe freezing and cracking at extremely low temperatures, as well as the problem of scaling on the silicone water outlets of overhead and handheld shower heads caused by residual water not being drained.
[0019] 4. When the switch is turned on, the bottom is equipped with a filter screen, which will filter out the mud, sand and debris in the water. When the valve core is closed to drain water, the mud, sand and debris that were blocked by the filter screen when the water entered will be discharged out of the product, thus playing an automatic cleaning role. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of the press-rotary ceramic valve core for automatically draining residual water from the pipe according to this utility model;
[0022] Figure 2 This is an exploded view of the structure of the press-rotary ceramic valve core for automatically draining residual water from the pipe according to this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the automatic discharge pipe of the present invention when the ceramic valve core of the press-rotary ceramic valve core is in the water inlet state.
[0024] Figure 4 This is a schematic diagram of the structure of the automatic drain pipe of this utility model when the ceramic valve core is in the draining state of the press-rotated ceramic valve core.
[0025] Figure 5 This is a schematic diagram of the connection structure between the fixed ceramic plate and the rotating ceramic plate when the automatic discharge pipe for residual water in the pipe is in the water inlet state.
[0026] Figure 6 This is a schematic diagram of the connection structure between the fixed ceramic plate and the rotating ceramic plate when the automatic draining pipe of this utility model is in the draining state of the press-rotating ceramic valve core.
[0027] In the diagram: 1-Upper outer shell; 2-Lower outer shell; 3-Rotating ceramic disc wheel; 4-Rotating ceramic disc; 5-Fixed ceramic disc; 6-Water inlet; 7-Water outlet; 8-Drain hole; 9-Water inlet; 10-Drainage channel; 11-Drain outlet; 12-Filter screen; 13-Pressing rod; 14-Rotating rod; 15-Actuating rod; 16-Outer spring; 17-Inner spring; 18-Upper wear-resistant ring; 19-Middle wear-resistant ring; 20-Lower wear-resistant ring; 21-V-shaped sealing ring; 22-Bottom sealing ring; 23-First O-ring sealing ring; 24-Second O-ring sealing ring; 25-Third O-ring sealing ring; 26-Fourth O-ring sealing ring; 27-Sealing ring. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figures 1 to 6 The present invention discloses a press-rotating ceramic valve core for automatically draining residual water from a pipe, comprising an upper outer shell 1 and a lower outer shell 2 installed at the bottom of the upper outer shell 1. A press-rotating device is installed on the inner side of the upper outer shell 1, and a rotating ceramic disc wheel 3 is connected to the bottom of the press-rotating device. A rotating ceramic disc 4 is installed at the bottom of the rotating ceramic disc wheel 3. A fixed ceramic disc 5 is installed on the inner side of the lower outer shell 2, which contacts the rotating ceramic disc 3. A water inlet hole 6 is provided on the outer side of the rotating ceramic disc 2. A water outlet hole 7 corresponding to the water inlet hole 6 is provided on the fixed ceramic disc 5. A drain hole 8 corresponding to the water outlet hole 7 is provided on the inner side of the rotating ceramic disc 3. A water inlet 9 corresponding to the water inlet hole 6 is provided on the outer side of the lower part of the lower outer shell 2. A drain channel 10 communicating with the drain hole 8 is provided on the outer side of the upper part of the lower outer shell 2. A drain outlet 11 communicating with the drain channel 10 is provided on the outer side of the upper part of the lower outer shell 2. A filter screen 12 is provided at the bottom of the lower outer shell 2. When the pressing and rotating device is pressed, it drives the rotating ceramic disc wheel 3 and the rotating ceramic disc 4 to rotate 90 degrees. Cyclic pressing achieves the opening and closing function. The water inlet hole 6 is connected to the water outlet hole 7 in the normal water outlet state; the drain hole 8 is connected to the water outlet hole 7 in the draining state, simultaneously closing the water outlet channel. Due to the water's own gravity, residual water in the pipe is automatically and quickly discharged. It has good performance and the following beneficial effects:
[0030] 1. Using ceramic discs as sealing components can extend the service life of the valve core.
[0031] 2. The requirements for water quality are not very high.
[0032] 3. It has a drainage function, which can drain residual water in the pipe, effectively solving the problem of water pipe freezing and cracking at extremely low temperatures, as well as the problem of scaling on the silicone water outlets of overhead and handheld shower heads caused by residual water not being drained.
[0033] 4. When the switch is turned on, the bottom is equipped with a filter screen 12, which will filter out the mud, sand and debris in the water. When the valve core is closed to drain water, the mud, sand and debris that were blocked by the filter screen 12 when the water enters will be discharged out of the product, thus playing an automatic cleaning role.
[0034] In one specific implementation, the pressing and rotating device includes a pressing rod 13, a rotating rod 14 connected to the bottom of the pressing rod 13, a toggle rod 15 connected to the bottom of the rotating rod 14, and the bottom of the toggle rod 15 connected to the rotating ceramic disc wheel 3. An outer spring 16 is installed on the top of the lower outer casing 2 to abut against the rotating rod 14, and an inner spring 17 is installed on the inner side of the toggle rod 15 to abut against the rotating rod 14. The pressing rod 13 and the rotating rod 14 adopt a ratchet structure. When the pressing rod 13 is pressed and rebounds, the rotating rod 14 is subjected to the elastic force of the spring, which drives the toggle rod 15 to drive the rotating ceramic disc wheel 3 and the rotating ceramic disc 4 to rotate 90 degrees. Cyclic pressing can achieve the opening and closing function.
[0035] An upper wear-resistant ring 18 is provided at the contact point between the outer spring 16 and the rotating rod 14 to prevent excessive friction between the outer spring 16 and the rotating rod 14, which would affect the smooth rotation of the rotating rod 14.
[0036] A wear-resistant ring 19 is provided at the contact point between the lever 15 and the lower housing 2 to reduce the friction between the lever 15 and the lower housing 2, making the lever 15 rotate more smoothly.
[0037] A lower wear-resistant ring 20 is provided at the contact point between the rotating ceramic wheel 3 and the lower outer shell 2 to reduce the friction between the rotating ceramic wheel 3 and the lower outer shell 2, making the rotating ceramic wheel 3 rotate more smoothly.
[0038] A V-shaped sealing ring 21 is provided at the connection between the rotating ceramic disc wheel 3 and the lower outer shell 2 to improve the sealing performance of the connection between the rotating ceramic disc wheel 3 and the lower outer shell 2.
[0039] The bottom of the lower housing 2 is provided with a bottom sealing ring 22 for installing the filter screen 12, which facilitates the installation of the filter screen 12 and improves the sealing performance of the valve core installation.
[0040] The outer side of the upper housing 1 is fitted with a first O-ring seal 23, and the outer side of the lower housing 2 is fitted with a second O-ring seal 24 to improve the sealing performance of the valve core installation. A third O-ring seal 25 is provided at the connection between the upper housing 1 and the lower housing 2 to improve the sealing performance of the connection between the upper housing 1 and the lower housing 2.
[0041] A fourth O-ring 26 is provided on the outer side of the rotating ceramic disc wheel 3 to improve the sealing performance of the connection between the rotating ceramic disc wheel 3 and the lower housing 2.
[0042] A sealing ring 27 is provided at the connection between the rotating ceramic disc wheel 3 and the rotating ceramic disc 4 to improve the sealing performance of the connection between the rotating ceramic disc wheel 3 and the rotating ceramic disc 4.
[0043] In one specific implementation, there are two water inlet holes 6 arranged symmetrically, two water outlet holes 7 arranged symmetrically, and two water drain holes 8 arranged symmetrically. Rotating the ceramic plate 4 by 90 degrees allows for cyclical control of water inlet and outlet, making it more convenient to use.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A push-to-drain rotary ceramic valve core for automatically discharging residual water from a pipe, characterized in that: The device includes an upper outer shell and a lower outer shell mounted on the bottom of the upper outer shell. A pressing and rotating device is installed on the inner side of the upper outer shell. A rotating ceramic disc is connected to the bottom of the pressing and rotating device. A rotating ceramic disc is installed on the bottom of the rotating ceramic disc. A fixed ceramic disc is installed on the inner side of the lower outer shell, which contacts the rotating ceramic disc. A water inlet is provided on the outer side of the rotating ceramic disc. A water outlet is provided on the fixed ceramic disc, which corresponds to the water inlet. A drain hole is provided on the inner side of the rotating ceramic disc, which corresponds to the water outlet. A water inlet is provided on the outer side of the lower part of the lower outer shell, which corresponds to the water inlet. A drain channel is provided on the rotating ceramic disc, which communicates with the drain hole. A drain outlet is provided on the outer side of the upper part of the lower outer shell, which communicates with the drain channel. A filter screen is provided at the bottom of the lower outer shell.
2. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 1, characterized in that: The pressing and rotating device includes a pressing rod, a rotating rod connected to the bottom of the pressing rod, a toggle rod connected to the bottom of the rotating rod, the bottom of the toggle rod connected to the rotating ceramic disc wheel, an outer spring abutting against the rotating rod installed on the top of the lower housing, and an inner spring abutting against the rotating rod installed on the inner side of the toggle rod.
3. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 2, characterized in that: The outer spring is provided with an upper wear-resistant ring at the contact point with the rotating rod.
4. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 2, characterized in that: A wear-resistant ring is provided at the contact point between the toggle lever and the lower housing.
5. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 1, characterized in that: A lower wear-resistant ring is provided at the contact point between the rotating ceramic disc wheel and the lower outer shell.
6. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 1, characterized in that: A V-shaped sealing ring is provided at the connection between the rotating ceramic disc wheel and the lower outer shell.
7. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 1, characterized in that: The bottom of the lower housing is provided with a bottom sealing ring for installing the filter screen.
8. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 1, characterized in that: The outer side of the upper outer shell is fitted with a first O-ring seal, the outer side of the lower outer shell is fitted with a second O-ring seal, and a third O-ring seal is provided at the connection between the upper outer shell and the lower outer shell.
9. The press-rotary ceramic valve core for automatically draining residual water from the pipe according to claim 1, characterized in that: The outer side of the rotating ceramic disc wheel is provided with a fourth O-ring seal.
10. The press-rotary ceramic valve core for automatically draining residual water from a pipe according to claim 1, characterized in that: A sealing ring is provided at the connection between the rotating ceramic disc wheel and the rotating ceramic disc.