A toilet upper ring water cut-off flow energy-saving component

Abstract

The utility model discloses a toilet upper circle water outlet flow limiting energy -conserving component belongs to toilet technical field, including the water outlet pipeline connected with toilet upper circle, water outlet pipeline installs on the water storage tank, the axial water flow adjusting assembly is provided in the water outlet pipeline, when water pressure increases, the water outlet gap of axial water flow adjusting assembly reduces, based on water pressure self -adaptation and adjust the flow size, make keep relatively constant water flow output, should not water pressure increase and jetting nature flush upper circle, throttle and guarantee flush silence. Water outlet pipeline is perpendicular to the axial water flow adjusting assembly and is provided with negative pressure adjusting part, negative pressure adjusting part is provided with the pressure release mouth connected with water storage tank, the pressure release mouth is provided with sealing plug and compression spring, the compression spring is with sealing plug and is opposite, and sealing plug closes pressure release mouth when normal drainage, when water outlet pipeline drainage closes, sealing plug extrudes compression spring under the action of pressure, opens pressure release mouth.

Description

Technical Field

[0001] This utility model relates to the field of toilet technology, and in particular to a water flow limiting and energy-saving component for the upper ring of a toilet. Background Technology

[0002] Chinese patent publication CN114411898A discloses a tankless mechanical valve flushing system, belonging to the field of toilet flushing systems. The system features a main control chamber with a first drain pipe, a second drain pipe, and a water inlet pipe on one side. A flow channel switching mechanism connects the first and second drain pipes. When the main control piston moves towards the activation chamber, the first drain pipe connects to the water inlet pipe. A water passage chamber is provided on the main control piston, and a switching control water channel is connected to the other end of the main control chamber. When the main control piston resets, the water passage chamber connects the switching control water channel to the water inlet pipe, driving the flow channel switching mechanism to connect the second drain pipe to the water inlet pipe. A delay setting in the activation chamber allows a single trigger to control the main control piston to complete one reciprocating motion. During this motion, the main control piston controls the flow channel switching mechanism to switch the water outlet pipe, thereby driving the water flow to complete the entire process of outer ring flushing, jet flushing, and outer ring secondary flushing and water storage. The entire process is completed through mechanical force and does not rely on the electricity of a water tank.

[0003] Purely mechanical flush valves rely on water pressure for operation. When the flow channel is switched, the water flow may be suddenly stopped, which can easily cause problems such as water hammer or negative pressure backflow. Summary of the Invention

[0004] To address the aforementioned problems, this utility model aims to solve the problems described above. One objective of this utility model is to provide a toilet seat flushing water flow limiting and energy-saving component that solves the above problems.

[0005] The solution adopted by this utility model is: a toilet seat water flow limiting and energy saving component, including a water outlet pipe connected to the toilet seat, the water outlet pipe being installed on a water storage tank, and an axial water flow regulating component being provided in the water outlet pipe, wherein when the water pressure increases, the water outlet gap of the axial water flow regulating component decreases. The water outlet pipe is provided with a negative pressure regulating component perpendicular to the axial direction. The negative pressure regulating component is provided with a pressure relief nozzle connected to the water storage tank. The pressure relief nozzle is provided with a sealing plug and a compression spring. The compression spring abuts against the sealing plug. During normal drainage, the sealing plug closes the pressure relief nozzle. When the water outlet pipe is closed for drainage, the sealing plug squeezes the compression spring under pressure, opening the pressure relief nozzle.

[0006] A preferred technical solution is that the water outlet pipe is provided with a pressure relief opening perpendicular to the axis direction, the negative pressure regulating component includes a mounting column, the mounting column passes through the pressure relief opening, a sealing ring is provided at the connection between the mounting column and the side wall of the water outlet pipe, the pressure relief nozzle is located at one end of the mounting column, the diameter of the pressure relief nozzle is larger than the diameter of the pressure relief opening, the other end of the mounting column is provided with a locking thread, a fixing nut is installed on the locking thread, and the water outlet pipe is clamped between the fixing nut and the pressure relief nozzle.

[0007] The preferred technical solution is that the mounting post is provided with a water passage gap communicating with the pressure relief nozzle, the pressure relief nozzle is provided with an installation cavity, the end of the pressure relief nozzle is provided with a limit ring, the middle of the limit ring is provided with a connecting hole communicating with the water storage tank, the end of the sealing plug is slidably connected to the connecting hole, the other end of the sealing plug is provided with a sealing rubber ring, when closed, the sealing rubber ring abuts against the limit ring, one end of the compression spring abuts against the mounting post, and the other end abuts against the sealing plug.

[0008] A preferred technical solution is that the axial water flow regulating component includes a flow limiting column, a flow limiting piston, and a flow limiting spring. The flow limiting column is fixed to the end of the water outlet pipe, the flow limiting piston is slidably connected in the water outlet pipe, one end of the flow limiting spring abuts against the flow limiting column, and the other end of the flow limiting spring abuts against the flow limiting piston. When the water pressure increases, the flow limiting piston moves towards the flow limiting column, and the water outlet gap between the two decreases.

[0009] A preferred technical solution is that the flow-limiting column includes a fixing part and a flow-limiting rod part. The fixing part is installed and fixed at the outlet of the water pipe, and the flow-limiting rod part is located at the center of the fixing part. The fixing part has an outlet hole at its edge. The flow-limiting spring is sleeved on the flow-limiting rod part. One end of the flow-limiting spring abuts against the fixing part. The flow-limiting piston has a receiving groove on the side near the flow-limiting rod part, and the other end of the flow-limiting spring is located in the receiving groove.

[0010] A preferred technical solution is that a guide slope is provided at one end of the flow-limiting rod near the flow-limiting piston, and the diameter of the flow-limiting rod gradually decreases along the direction close to the flow-limiting piston; a flow-limiting hole is provided in the middle of the flow-limiting piston, and the diameter of the flow-limiting hole gradually decreases along the direction away from the flow-limiting rod, and the diameter of the flow-limiting hole is larger than the diameter of the flow-limiting rod; when the water pressure increases, the flow-limiting rod is inserted into the flow-limiting hole.

[0011] Compared with existing technologies, the water flow limiting and energy-saving component for the toilet upper ring of this utility model has the following technical effects: 1. The toilet seat water flow limiting energy-saving component of this application includes a water outlet pipe connected to the toilet seat. The water outlet pipe is installed on a water storage tank. An axial water flow regulating component is provided in the water outlet pipe. When the water pressure increases, the water outlet gap of the axial water flow regulating component decreases. Based on the water pressure adaptive adjustment of the flow rate, a relatively constant water flow output is maintained, and the toilet seat will not be jet-flushed in response to increased water pressure, thus saving water and ensuring quiet flushing.

[0012] A negative pressure regulating component is installed perpendicular to the axial direction on the water outlet pipe. This component includes a pressure relief nozzle connected to a water storage tank. The nozzle contains a sealing plug and a compression spring. The compression spring abuts against the sealing plug. During normal drainage, the sealing plug closes the nozzle. When the water outlet pipe is closed, the sealing plug, under pressure, squeezes the compression spring, opening the nozzle. When switching flushing channels, a momentary negative pressure is generated in the flushing pipe. The negative pressure regulating component simultaneously draws water from the water storage tank to balance the pressure, ensuring stable flushing.

[0013] Other features and advantages of the present invention will become clear when reading the following description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the toilet upper ring water flow limiting energy-saving component provided in a specific embodiment of this utility model; In the picture: 1. Water outlet pipe; 11. Pressure relief opening; 2. Water storage tank; 3. Axial water flow adjustment component; 4. Negative pressure adjustment component; 41. Pressure relief nozzle; 42. Sealing plug; 43. Compression spring; 44. Mounting column; 441. Sealing ring; 442. Locking thread; 443. Fixing nut; 444. Water passage gap; 411. Mounting cavity; 412. Limiting ring; 413. Connecting hole; 421. Sealing rubber ring; 31. Flow limiting column; 32. Flow limiting piston; 33. Flow limiting spring; 311. Fixing part; 312. Flow limiting rod part; 313. Water outlet; 314. Guide slope; 321. Receiving groove; 322. Flow limiting hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0017] The following description, in conjunction with the accompanying drawings and embodiments, details the water flow limiting and energy-saving component for the toilet's upper ring.

[0018] like Figure 1 As shown, a toilet seat water flow limiting and energy-saving component includes a water outlet pipe 1 connected to the toilet seat. The water outlet pipe 1 is installed on a water storage tank 2. An axial water flow regulating component 3 is installed in the water outlet pipe 1. When the water pressure increases, the water outlet gap of the axial water flow regulating component 3 decreases. A negative pressure regulating component 4 is arranged perpendicular to the axial direction of the water outlet pipe 1. The negative pressure regulating component 4 is provided with a pressure relief nozzle 41 connected to the water storage tank 2. A sealing plug 42 and a compression spring 43 are provided in the pressure relief nozzle 41. The compression spring 43 abuts against the sealing plug 42. During normal drainage, the sealing plug 42 closes the pressure relief nozzle 41. When the water outlet pipe 1 is closed for drainage, the sealing plug 42 squeezes the compression spring 43 under pressure, opening the pressure relief nozzle 41. The main body of this component is a section of water outlet pipe 1, with its two ends connected to the water outlet of a control valve and the annular water distribution pipe of the toilet seat, respectively. The axial flow regulating component 3 is integrated into the main flow channel inside the pipe. It dynamically changes the cross-sectional area of ​​the flow channel in response to changes in inlet water pressure through the displacement of its internal moving parts. The negative pressure regulating component 4 is installed vertically on the pipe sidewall in a bypass configuration. Its internal pressure relief nozzle 41 is connected to the water storage tank 2 via a pipeline, forming a controlled air intake channel. The axial regulating component achieves automatic flow stabilization, maintaining a relatively constant flushing flow rate regardless of the inlet water pressure, avoiding water waste under high pressure and achieving energy conservation. The negative pressure regulating component 4 acts as a mechanical vacuum breaker, specifically designed to address siphon risks and ensure water supply safety. The components can be directly connected in series in existing pipelines, making installation simple and the modification cost low.

[0019] The technical solution for the installation and sealing structure of the negative pressure regulating component 4 is as follows: A pressure relief opening 11 is provided perpendicular to the axis of the water outlet pipe 1. The negative pressure regulating component 4 includes a mounting post 44, which passes through the pressure relief opening 11. A sealing ring 441 is provided at the connection between the mounting post 44 and the side wall of the water outlet pipe 1. A pressure relief nozzle 41 is located at one end of the mounting post 44, and the diameter of the pressure relief nozzle 41 is larger than the diameter of the pressure relief opening 11. A locking thread 442 is provided at the other end of the mounting post 44, and a fixing nut 443 is installed on the locking thread 442. The water outlet pipe 1 is clamped between the fixing nut 443 and the pressure relief nozzle 41. A circular pressure relief opening 11 is machined on the side wall of the water outlet pipe 1. The mounting post 44 is designed as a stepped shaft, with one end being a pressure relief nozzle 41 with a larger diameter and the other end being a rod with external threads. During installation, the mounting post 44 is passed through the pressure relief opening 11 from the inside of the pipe outwards, so that the pressure relief nozzle 41 fits against the outer wall of the pipe. A sealing ring 441 and a fixing nut 443 are fitted onto the threaded rod on the outside of the pipe, and the fixing nut 443 is tightened. The tightening force of the threads tightly clamps the pipe wall between the pressure relief nozzle 41 and the fixing nut 443, forming a reliable radial seal with the sealing ring 441. This installation method eliminates the need for welding or complex adhesives, achieving secure installation and effective sealing through mechanical clamping. The assembly process is simple, highly reliable, and easy for later maintenance or replacement. The diameter of the pressure relief nozzle 41 is larger than the opening, ensuring reliable positioning and coverage within the pipe and preventing it from falling off. The installation method, perpendicular to the outlet pipe 1, significantly reduces the space occupied by the device, making it more compact.

[0020] The internal operating principle of the negative pressure regulating component 4 is as follows: A water passage 444 is provided on the mounting column 44, communicating with the pressure relief nozzle 41. The pressure relief nozzle 41 has an installation cavity 411. A limit ring 412 is provided at the end of the pressure relief nozzle 41, and a connecting hole 413 is provided in the middle of the limit ring 412, communicating with the water storage tank 2. The end of the sealing plug 42 is slidably connected to the connecting hole 413, and the other end of the sealing plug 42 is provided with a sealing rubber ring 421. When closed, the sealing rubber ring 421 abuts against the limit ring 412. One end of the compression spring 43 abuts against the mounting column 44, and the other end abuts against the sealing plug 42. The water passage 444 is a small channel arranged axially or radially along the mounting column 44, allowing water in the pipe to enter the installation cavity 411 of the pressure relief nozzle 41, ensuring that the bottom of the sealing plug 42 always bears the water pressure from the pipe. The top of the sealing plug 42 is exposed to the atmosphere of the water storage tank 2 through the connecting hole 413. The preload of the compression spring 43 pushes the sealing plug 42 toward the connecting hole 413, causing the sealing rubber ring 421 to fit tightly against the limiting ring 412, thus closing the ventilation path.

[0021] During normal drainage, the pipe is under positive pressure. This pressure acts on the bottom of the sealing plug 42, further strengthening the seal between the sealing ring 421 and the limiting ring 412, keeping the device closed. When closed, negative pressure is generated. When the upstream valve closes rapidly, the water in the pipe is emptied due to inertia, creating a momentary negative pressure. The pressure at the bottom of the sealing plug 42 is lower than the atmospheric pressure at the top. Under the influence of this atmospheric pressure difference, the sealing plug 42 compresses the spring 43 and moves inward into the pipe. The sealing ring 421 disengages from the limiting ring 412, and external air quickly enters the pipe through the connecting hole 413, the mounting cavity 411, and the water passage gap 444, immediately breaking the vacuum. This design utilizes the pressure difference to directly drive the sealing plug 42, resulting in an extremely fast response time. It can instantly eliminate harmful negative pressure, effectively preventing siphoning and protecting the toilet water seal and water supply pipeline. The spring preload can be set as needed to adjust the sensitivity of the negative pressure trigger.

[0022] The axial flow regulating assembly 3 comprises a flow-limiting column 31, a flow-limiting piston 32, and a flow-limiting spring 33. The flow-limiting column 31 is fixed to the end of the outlet pipe 1. The flow-limiting piston 32 is slidably connected in the outlet pipe 1. One end of the flow-limiting spring 33 abuts against the flow-limiting column 31, and the other end abuts against the flow-limiting piston 32. When the water pressure increases, the flow-limiting piston 32 moves towards the flow-limiting column 31, reducing the outlet gap between them. The flow-limiting column 31 is fixedly installed at the outlet end of the outlet pipe 1 as a static reference. The flow-limiting piston 32 can slide along the pipe axis and is sealed to the inner wall of the pipe. The flow-limiting spring 33 is supported between the flow-limiting piston 32 and the flow-limiting column 31, providing the flow-limiting piston 32 with a thrust away from the flow-limiting column 31. Water flows in from one side of the flow-limiting piston 32, and its pressure acts on the end face of the flow-limiting piston 32, forming a thrust opposite to the direction of the spring force. At low water pressure, the water flow thrust is less than the spring preload, pushing the flow-limiting piston 32 away from the flow-limiting column 31. The annular gap between them is large, allowing water to flow smoothly. At high water pressure, the water flow thrust increases, overcoming the spring force and pushing the flow-limiting piston 32 towards the flow-limiting column 31. This narrows the annular water passage gap 444 between them, increasing flow resistance and thus suppressing flow rate growth. This is an automatic, mechanical feedback constant flow valve. Through the dynamic balance between spring force and water pressure, the flow area adjusts in the opposite direction to pressure changes, ultimately stabilizing the output flow within a set range. This achieves intelligent water-saving effects, automatically throttling at high pressure and ensuring flow rate at low pressure. The structure is simple and requires no external control.

[0023] The flow-limiting column 31 includes a fixing part 311 and a flow-limiting rod part 312. The fixing part 311 is fixed to the inlet of the water outlet pipe 1, and the flow-limiting rod part 312 is located at the center of the fixing part 311. A water outlet hole 313 is provided on the edge of the fixing part 311. A flow-limiting spring 33 is sleeved on the flow-limiting rod part 312, with one end of the spring abutting against the fixing part 311. A receiving groove 321 is provided on the side of the flow-limiting piston 32 near the flow-limiting rod part 312, and the other end of the spring 33 is located in the receiving groove 321. The fixing part 311 is used to install the entire flow-limiting column 31 at the end of the pipe, and the water outlet hole 313 on its edge is the final outlet for the water flow. The flow-limiting rod part 312 extends into the pipe. The flow-limiting spring 33, sleeved on the flow-limiting rod part 312, obtains good radial guidance, ensuring that it will not bend or become unstable during operation. One end of the spring rests against the fixed part 311, while the other end extends into the receiving groove 321 of the flow-limiting piston 32, resting against the bottom of the groove. This arrangement ensures that the spring is always centered, resulting in stable force transmission. The integrated flow-limiting column 31 facilitates processing and installation. The flow-limiting rod part 312 provides precise guidance for the spring, ensuring the linearity and smoothness of the movement of the flow-limiting piston 32 and preventing jamming or wear caused by spring misalignment. The design of the receiving groove 321 protects the end of the spring and clearly defines the force point, making the mechanical characteristics of the entire regulating system more stable and reliable.

[0024] A precise flow regulation interface ensures stable flow control. The flow-limiting rod 312 has a guide slope 314 at one end near the flow-limiting piston 32, and its diameter gradually decreases along the direction approaching the piston 32. A flow-limiting orifice 322 is provided in the middle of the flow-limiting piston 32, and its diameter gradually decreases along the direction away from the flow-limiting rod 312. The diameter of the orifice 322 is larger than that of the flow-limiting rod. When the water pressure increases, the flow-limiting rod 312 inserts into the orifice 322. The front end of the flow-limiting rod 312 is conical, and the orifice 322 on the flow-limiting piston 32 is a matching inverted conical orifice. When they are not in contact, water flows through the annular space between the orifice 322 and the flow-limiting rod 312. When the water pressure increases, as the flow-limiting piston 32 moves towards the flow-limiting rod 312, the conical flow-limiting rod 312 gradually penetrates into the inverted conical orifice 322. As the insertion depth increases, the annular flow area between the two conical surfaces decreases rapidly and non-linearly. The conical fit design enables precise and sensitive control of the water flow channel area. Even a small piston displacement can cause a significant change in the flow area, resulting in rapid flow regulation and accurate control. This design allows the component to maintain stable flow over a wider range of water pressures, leading to better water conservation. Simultaneously, the conical guide helps with piston alignment, reduces wear, and extends service life.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes that element.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. The utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A toilet seat top ring water flow limiting and energy-saving component, characterized in that: Includes a water outlet pipe connected to the toilet seat, the water outlet pipe is installed on a water storage tank, and an axial water flow regulating component is provided in the water outlet pipe. When the water pressure increases, the water outlet gap of the axial water flow regulating component decreases. The water outlet pipe is provided with a negative pressure regulating component perpendicular to the axial direction. The negative pressure regulating component is provided with a pressure relief nozzle connected to the water storage tank. The pressure relief nozzle is provided with a sealing plug and a compression spring. The compression spring abuts against the sealing plug. During normal drainage, the sealing plug closes the pressure relief nozzle. When the water outlet pipe is closed for drainage, the sealing plug squeezes the compression spring under pressure, opening the pressure relief nozzle.

2. The toilet seat water flow limiting and energy-saving component as described in claim 1, characterized in that: The water outlet pipe is provided with a pressure relief opening perpendicular to the axis direction. The negative pressure regulating component includes a mounting column that passes through the pressure relief opening. A sealing ring is provided at the connection between the mounting column and the side wall of the water outlet pipe. The pressure relief nozzle is located at one end of the mounting column, and the diameter of the pressure relief nozzle is larger than the diameter of the pressure relief opening. The other end of the mounting column is provided with a locking thread, and a fixing nut is installed on the locking thread. The water outlet pipe is clamped between the fixing nut and the pressure relief nozzle.

3. The toilet seat water flow limiting and energy-saving component as described in claim 2, characterized in that: The mounting post is provided with a water passage gap communicating with the pressure relief nozzle. The pressure relief nozzle has an installation cavity. A limit ring is provided at the end of the pressure relief nozzle. A connecting hole is provided in the middle of the limit ring communicating with the water storage tank. The end of the sealing plug is slidably connected to the connecting hole. A sealing rubber ring is provided at the other end of the sealing plug. When closed, the sealing rubber ring abuts against the limit ring. One end of the compression spring abuts against the mounting post, and the other end abuts against the sealing plug.

4. The toilet seat water flow limiting and energy-saving component as described in claim 1, characterized in that: The axial water flow regulating assembly includes a flow-limiting column, a flow-limiting piston, and a flow-limiting spring. The flow-limiting column is fixed to the end of the water outlet pipe, and the flow-limiting piston is slidably connected in the water outlet pipe. One end of the flow-limiting spring abuts against the flow-limiting column, and the other end of the flow-limiting spring abuts against the flow-limiting piston. When the water pressure increases, the flow-limiting piston moves towards the flow-limiting column, and the water outlet gap between the two decreases.

5. The toilet seat water flow limiting and energy-saving component as described in claim 4, characterized in that: The flow-limiting column includes a fixing part and a flow-limiting rod part. The fixing part is installed and fixed at the pipe opening of the water outlet pipe. The flow-limiting rod part is located at the center of the fixing part, and the edge of the fixing part is provided with a water outlet hole. The flow-limiting spring is sleeved on the flow-limiting rod part. One end of the flow-limiting spring abuts against the fixing part. The flow-limiting piston is provided with a receiving groove on the side near the flow-limiting rod part, and the other end of the flow-limiting spring is located in the receiving groove.

6. The toilet seat water flow limiting and energy-saving component as described in claim 5, characterized in that: The flow-limiting rod has a guide slope at one end near the flow-limiting piston, and the diameter of the flow-limiting rod gradually decreases along the direction near the flow-limiting piston. The flow-limiting piston has a flow-limiting hole in the middle, and the diameter of the flow-limiting hole gradually decreases along the direction away from the flow-limiting rod. The diameter of the flow-limiting hole is larger than the diameter of the flow-limiting rod. When the water pressure increases, the flow-limiting rod is inserted into the flow-limiting hole.

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