Vacuum pneumatic water valve

Abstract

The utility model relates to a vacuum pneumatic type water valve which comprises a valve body, a first elastic membrane, a water inlet pipeline and a water outlet pipeline, the first elastic membrane covers the upper end of the valve body, and the water inlet pipeline and the water outlet pipeline are both arranged at the lower end of the valve body; a key and a valve element are arranged in the valve body, the valve element is movably installed in the valve body, the top of the key is fixedly connected to the middle of a first elastic membrane, the first elastic membrane deforms to drive the key to move in the valve body, the key is provided with a permanent magnet, and the permanent magnet moves in the valve body along with the key and can be in linkage with the valve element to correspondingly move. Further, the water inlet pipeline and the water outlet pipeline are controlled to be switched off and switched on; the valve body is further provided with a control end. Differential pressure driving in the valve body is realized by adopting a pure mechanical structure, so that the on-off of the water valve is controlled, the normal use of a vacuum blowdown system can be ensured under the condition of power on or power off, the vacuum blowdown valve can also be used for a traditional flush toilet system, and the application scene is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum systems, in particular to a vacuum pneumatic water valve. Background Art

[0002] A vacuum toilet is a toilet that creates a vacuum in the entire toilet system. There is a flush valve on the passage leading to each toilet that isolates it from the system. When the toilet is flushed, this valve opens, relying on the pressure difference between the atmospheric pressure to clean the excrement in the toilet. Most of the flushing valves in the prior art use electromagnetic valve technology, and electromagnetic valve technology generally has the following problems: the cost of use is too high, because the electromagnetic valve needs to use a power supply, and the power source of the power supply generally includes the following situations: first, the use of battery packs has the disadvantage that the batteries need to be replaced regularly. If the batteries are not replaced for a long time, the battery pack will be out of power and the corresponding equipment will be unusable; second, the use of AC power has the limitations of leakage and unstable power supply of nearby power grid voltage, and also increases the investment cost to a certain extent; third, the use of solar power is limited by many factors such as season, weather, installation location, cleanliness of solar panels, etc., which leads to unstable charging and its cost is relatively high; fourth, the use of wind power generation is affected by the surrounding wind energy and also has the problem of unstable charging; furthermore, it also includes other energy sources, such as fuel cell power supply, its consumables are very expensive, the gain does not outweigh the loss, and it is not convenient to be used in the control of electromagnetic water valves.

[0003] Therefore, in view of the electricity consumption problem in the prior art, the utility model develops a vacuum pneumatic water valve to solve the problem in the prior vacuum technology. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a vacuum pneumatic water valve, which adopts a purely mechanical structure to realize the pressure difference drive in the valve body, so as to control the on and off of the water valve, and can ensure the normal use of the vacuum sewage discharge system in the case of electricity or no electricity, and can also be used in the traditional flush toilet system, expanding the applicable scenarios.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a vacuum pneumatic water valve, comprising a valve body, a first elastic diaphragm, a water inlet pipe and a water outlet pipe, wherein the elastic diaphragm cover is arranged at the upper end of the valve body, and the water inlet pipe and the water outlet pipe are both arranged at the lower end of the valve body;

[0006] The valve body is provided with a button and a valve core, the valve core is movably installed on the valve body, the top of the button is fixedly connected to the middle part of the first elastic diaphragm, the first elastic diaphragm is deformed to drive the button to move in the valve body, the button is provided with a permanent magnet, the permanent magnet moves up and down in the valve body with the button and can link the valve core to move accordingly, thereby controlling the cut-off and conduction between the water inlet pipe and the water outlet pipe;

[0007] The valve body is also provided with a control port for driving the first elastic diaphragm to deform and restore the deformation.

[0008] Furthermore, a flow channel structure is provided between the water inlet pipe and the water outlet pipe, and the flow channel structure includes a second elastic diaphragm and a water flow port and a valve port provided on the second elastic diaphragm. A transition cavity is formed between the valve body and the second elastic diaphragm. The water flow port is provided between the transition cavity and the water inlet pipe, and the valve port is provided between the transition cavity and the water outlet pipe. The valve core can move away from or closer to the valve port under the action of a button.

[0009] Furthermore, the bottom center of the valve body is concave to form a valve core cavity with a circular cross section, the valve core is movably installed in the valve core cavity, and the valve core cavity is connected to the transition cavity.

[0010] Furthermore, a first spring is provided in the valve core cavity. The first spring is provided at one end of the valve core away from the valve port, and the first spring is squeezed when the valve core moves upward.

[0011] Furthermore, the diameter of the water flow port is smaller than the diameter of the valve port.

[0012] Furthermore, a second spring is provided in the valve body. The second spring is sleeved on the outer periphery of the valve core cavity and is located below the button. When the button moves downward, the second spring is squeezed.

[0013] Furthermore, the valve body and the first elastic diaphragm form a closed cavity, and the control port is connected to the closed cavity.

[0014] Furthermore, the exterior of the valve core is wrapped with a carbon steel layer.

[0015] Furthermore, the permanent magnet is installed at the lower end of the key through a magnet seat.

[0016] Furthermore, the valve body includes an upper shell, the lower end of which is sealed and connected to a lower shell, and the button, the permanent magnet, the control port, the first elastic diaphragm, the first spring, the valve core, and the second spring are all arranged on the upper shell; the second elastic diaphragm, the water inlet pipe, and the water outlet pipe are all arranged on the lower shell.

[0017] The beneficial effects of the utility model are:

[0018] The utility model forms or eliminates the pressure difference between the inside and outside of the valve body by evacuating or maintaining normal pressure at the control port, thereby driving the button to move, and then driving the valve core to move, thereby opening or closing the valve port, that is, connecting or disconnecting the water inlet pipe and the water outlet pipe, thereby realizing the control of the on and off of the water valve. The entire vacuum pneumatic water valve adopts a purely mechanical structure to realize the pressure difference drive in the valve body, thereby controlling the on and off of the water valve. It can ensure the normal use of the vacuum sewage system in the case of power or no power, and can also be used in traditional flush toilet systems, expanding the applicable scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 (valve port closed state);

[0020] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 (valve port conduction status).

[0021] In the figure:

[0022] Valve body C1, control port C2, first elastic diaphragm C3, water inlet pipe C4, water outlet pipe C5, button C6, valve core C7, permanent magnet C8, second elastic diaphragm C9, water flow port C91, valve port C92, transition chamber C11, valve core chamber C12, first spring C13, second spring C14, upper shell C111 and lower shell C122. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 2A vacuum pneumatic water valve is shown, comprising a valve body C1, a first elastic diaphragm C3, an inlet pipe C4 and an outlet pipe C5, wherein the elastic diaphragm cover is arranged at the upper end of the valve body, and the inlet pipe and the outlet pipe are both arranged at the lower end of the valve body; a button C6 and a valve core C7 are arranged in the valve body, and the valve core is movably installed on the valve body, the top of the button is fixedly connected to the middle part of the first elastic diaphragm, and the button protrudes from the upper end of the valve body, and the deformation of the first elastic diaphragm can drive the button to move in the valve body; the button is provided with a permanent magnet C8, and the permanent magnet moves up and down in the valve body with the button and can link the valve core to move accordingly, thereby controlling the cutting off and conduction between the inlet pipe and the outlet pipe; the valve body is also provided with a control port C2, which is used to drive the first elastic diaphragm to deform and restore the deformation.

[0025] The valve body is started, that is, vacuum negative pressure is applied to the control port, and an air pressure difference is formed between the outside and inside of the valve body. The first elastic diaphragm is deformed toward the inside of the valve body and drives the button to move downward. Since a permanent magnet is provided on the button, as the button moves downward, the magnetic adsorption force of the permanent magnet on the valve core (in this embodiment, a carbon steel layer is wrapped around the outside of the valve core, so it can be adsorbed by the permanent magnet) increases. The magnetic adsorption force gradually increases to a certain extent (the magnetic adsorption force can overcome the resistance of the valve core to move upward) to drive the valve core to move upward. The valve core moves upward instantly under the action of a larger magnetic adsorption force, and stops after being adsorbed by the permanent magnet across the valve core cavity.

[0026] Specifically, a flow channel structure is provided between the water inlet pipe and the water outlet pipe, and the flow channel structure includes a second elastic diaphragm C9 and a water flow port C91 and a valve port C92 provided on the second elastic diaphragm. A sealed transition chamber C11 is formed between the valve body and the second elastic diaphragm. The water flow port is provided between the transition chamber and the water inlet pipe, that is, the tap water in the water inlet pipe can freely enter the transition chamber. The valve port is provided between the transition chamber and the water outlet pipe, that is, when the valve port is opened, the tap water in the transition chamber can freely enter the water outlet pipe; the valve core can move away from or close to the valve port under the linkage of the button; since the tap water can freely enter the transition chamber from the water inlet pipe along the water flow port, when the valve port is connected, the tap water in the transition chamber flows from the valve port into the water outlet pipe.

[0027] Specifically, the specific structure of the valve core movably installed on the valve body is: the bottom center of the valve body is concave to form a valve core cavity C12 with a circular cross-section, the valve core is movably installed in the valve core cavity, and the valve core cavity is connected to the transition cavity.

[0028] In this embodiment, the diameter of the water flow port is smaller than the diameter of the valve port.

[0029] Specifically, a first spring C13 is further provided in the valve core cavity. The first spring is provided at one end of the valve core away from the valve port. When the valve core moves upward and away from the valve port, the first spring is squeezed to make the valve port conductive.

[0030] Specifically, a second spring C14 is further provided in the valve body. The second spring is sleeved on the outer periphery of the valve core cavity and is located below the button. When the button moves downward, the second spring is compressed.

[0031] The control port is evacuated, and an air pressure difference is formed between the inside and the outside of the valve body. The first elastic diaphragm is deformed toward the inside of the valve body, driving the button to move downward with the permanent magnet and squeezing the second spring at the same time. The valve core moves upward instantly under the magnetic adsorption force of the permanent magnet, and stops after being adsorbed by the permanent magnet across the valve core cavity. At this time, the water outlet pipe and the water inlet pipe are connected, and tap water in the water outlet pipe flows out to the outside; the control port stops evacuating, and under the action of the rebound force of the second spring and the rebound force of the first spring respectively, the button is separated from the valve core, and the button resets and moves back to the initial position, the valve core moves down to the valve port position, the water outlet pipe and the water inlet pipe are not connected, and no water flows out of the water outlet pipe.

[0032] Specifically, the valve body and the first elastic diaphragm form a closed cavity, and the control port is connected to the closed cavity; when the control port is evacuated, the closed cavity is in a vacuum negative pressure state, the first elastic diaphragm is deformed inwardly, and the button is driven to squeeze the second spring downward; when the control port stops evacuating and is in a normal air pressure state, the closed cavity is in a normal air pressure state, the first elastic diaphragm recovers its deformation outward, and under the combined action of the rebound force of the second spring and the deformation recovery force of the first elastic diaphragm, the button moves up and resets.

[0033] In this embodiment, preferably, the permanent magnet is installed at the lower end of the button through a magnet seat, and the permanent magnet is used to generate a magnetic adsorption force on the valve core to drive the valve core to move upward.

[0034] In some embodiments, the valve body includes an upper shell C111, the lower end of the upper shell is sealed and connected to a lower shell C122, the button, the permanent magnet, the control port, the first elastic diaphragm, the first spring, the valve core, the valve core cavity, and the second spring are all arranged in the upper shell; the second elastic diaphragm, the water inlet pipe, and the water outlet pipe are all arranged in the lower shell.

[0035] The first elastic diaphragm cover is arranged at the upper end of the upper shell, and the first elastic diaphragm and the upper shell form a closed cavity, the button is arranged in the upper shell and the top thereof is fixedly connected to the middle part of the first elastic diaphragm, the permanent magnet is installed at the lower end of the button through the magnet seat, the bottom center of the upper shell is concave to form a valve core cavity, the second spring sleeve is arranged on the outer periphery of the valve core cavity, the valve core is arranged in the valve core cavity and is located outside the closed cavity, the first spring is arranged in the valve core cavity and is located at the end of the valve core away from the valve port, that is, it is arranged between the valve core and the bottom of the valve core cavity;

[0036] The water inlet pipe and the water outlet pipe are arranged in the lower shell body, the second elastic diaphragm is arranged in the lower shell body, and forms a sealed transition chamber with the upper shell body, the transition chamber is connected with the valve core chamber, the valve core can move back and forth in the valve core chamber and the transition chamber, the second elastic diaphragm is provided with a water flow port and a valve port, the water flow port is arranged between the transition chamber and the water inlet pipe, the valve port is arranged between the transition chamber and the water outlet pipe, the tap water enters the transition chamber from the water inlet pipe through the water flow port, and when the valve port is opened, the tap water in the transition chamber flows into the water outlet pipe through the valve port.

[0037] The action process of the utility model is:

[0038] The utility model forms a pressure difference between the inside and outside of the valve body or releases the pressure difference by evacuating a vacuum or maintaining a normal pressure at the control port, thereby driving a key to move, and then driving the valve core to move, thereby opening or closing the valve port, that is, connecting or disconnecting the water inlet pipe and the water outlet pipe, thereby realizing the on-off control of the water valve.

[0039] Valve port conduction action process: the control port is vacuumed, and a pressure difference is formed between the valve body and the outside. The first elastic diaphragm is deformed toward the inside of the valve body, and the driving button moves the permanent magnet downward, squeezing the second spring at the same time. The magnetic adsorption force of the permanent magnet on the valve core gradually increases during the downward movement. When the magnetic adsorption force increases to overcome the resistance of the valve core to move upward, the valve core moves upward instantly and stops after being adsorbed by the permanent magnet across the valve core cavity. At this time, the water outlet pipe is connected to the water inlet pipe, and tap water in the water outlet pipe flows out to the outside;

[0040] The valve port closing action process: the control port stops vacuuming, and under the joint action of the rebound force of the second spring and the rebound force of the first spring, the button is separated from the valve core, the button resets and moves back to the initial position, the valve core moves down to the valve port position, the water outlet pipe and the water inlet pipe are not connected, and no water flows out of the water outlet pipe.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0044] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

Claims

1. A vacuum pneumatic water valve, characterized in that: It comprises a valve body, a first elastic diaphragm, a water inlet pipe and a water outlet pipe, wherein the first elastic diaphragm cover is arranged at the upper end of the valve body, and the water inlet pipe and the water outlet pipe are both arranged at the lower end of the valve body; The valve body is provided with a button and a valve core, the valve core is movably installed on the valve body, the top of the button is fixedly connected to the middle part of the first elastic diaphragm, the first elastic diaphragm is deformed to drive the button to move in the valve body, the button is provided with a permanent magnet, the permanent magnet moves up and down in the valve body with the button and can link the valve core to move accordingly, thereby controlling the cut-off and conduction between the water inlet pipe and the water outlet pipe; The valve body is also provided with a control port for driving the first elastic diaphragm to deform and restore the deformation.

2. The vacuum pneumatic water valve according to claim 1, characterized in that: A flow channel structure is provided between the water inlet pipe and the water outlet pipe, and the flow channel structure includes a second elastic diaphragm and a water flow port and a valve port provided on the second elastic diaphragm. A transition cavity is formed between the valve body and the second elastic diaphragm. The water flow port is provided between the transition cavity and the water inlet pipe, and the valve port is provided between the transition cavity and the water outlet pipe. The valve core can move away from or close to the valve port under the action of a button.

3. The vacuum pneumatic water valve according to claim 2, characterized in that: The bottom center of the valve body is concave to form a valve core cavity with a circular cross section. The valve core is movably installed in the valve core cavity, and the valve core cavity is communicated with the transition cavity.

4. The vacuum pneumatic water valve according to claim 3, characterized in that: A first spring is also arranged in the valve core cavity. The first spring is arranged at one end of the valve core away from the valve port, and the first spring is compressed when the valve core moves upward.

5. The vacuum pneumatic water valve according to claim 2, characterized in that: The diameter of the water flow port is smaller than the diameter of the valve port.

6. The vacuum pneumatic water valve according to claim 3, characterized in that: The valve body is further provided with a second spring, which is sleeved on the outer periphery of the valve core cavity and is located below the button. When the button moves downward, the second spring is compressed.

7. The vacuum pneumatic water valve according to claim 1, characterized in that: The valve body and the first elastic diaphragm form a closed cavity, and the control port is connected to the closed cavity.

8. The vacuum pneumatic water valve according to claim 1, characterized in that: The valve core is wrapped with a carbon steel layer on the outside.

9. The vacuum pneumatic water valve according to claim 1, characterized in that: The permanent magnet is installed at the lower end of the key through a magnet seat.

10. The vacuum pneumatic water valve according to claim 1, characterized in that: The valve body includes an upper shell, the lower end of which is sealed and connected to a lower shell; the button, the permanent magnet, the control port, the first elastic diaphragm, the first spring, the valve core, and the second spring are all arranged on the upper shell; the second elastic diaphragm, the water inlet pipe, and the water outlet pipe are all arranged on the lower shell.

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