A synchronous switch valve core with pressure stabilization function

Abstract

The present invention relates to the field of bathroom accessories, and in particular to a synchronous switch valve core with a pressure stabilizing function, comprising: a valve core housing, a valve core base, a flow regulating module and a balanced hydraulic module. The flow regulating module can cut off the hot and cold water circuits before water enters the pressure balancing module, so that high-temperature water cannot soak the constant temperature valve core, and scale generation is eliminated, thereby protecting the valve core and extending its service life. At the same time, water can enter the pressure balancing module only after passing through the flow regulating module, which can prevent hot and cold water from leaking. There is no need to install a one-way valve at the water inlet bend. By optimizing the design of the synchronous switch valve core components, the synchronous valve core is changed from a single flow switch that can only adjust the flow to a function that can adjust the flow and synchronize the switch, and can also balance the pressure in the two channels. This structural change changes the complex channel of the product equipped with the valve core into a simple channel, so that the product does not need to separately set up a balancing module component, the valve body structure is simple, the water circuit is shortened, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of bathroom equipment, and in particular to a synchronous switch valve core with a pressure stabilizing function. Background Art

[0002] With the development of society, people have higher and higher requirements for life. Existing valves can only switch the passage and adjust the flow. When assembled on the main body, a pressure balance module is required to balance the pressure. On the main body without synchronous switch, it is normal to install a one-way check valve at the front end of the two channels to prevent the two channels from connecting. The one-way check valve needs to be set at the front end of the product pipeline, so the component size is required to be small and the water outlet must be tightly sealed. In actual applications, the one-way check valve has defects such as being easily stuck by impurities, poor sealing, large flow resistance affecting internal flow, and short life. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a synchronous switch valve core with a pressure stabilizing function.

[0004] The present invention is achieved through the following technical solutions:

[0005] A synchronous switch valve core with a pressure stabilizing function, characterized in that it includes: a valve core housing, a valve core base, a flow regulating module and a balanced hydraulic module, the valve core housing and the valve core base are clamped together to form a valve core cavity, the valve core housing and the valve core base are clamped together to form a valve core cavity, the flow regulating module and the balanced hydraulic module are coaxially arranged in the valve core cavity, water enters the valve core cavity from one end of the valve core cavity, passes through the flow regulating module and then enters the balanced hydraulic module, the valve core base is provided with a bottom water outlet and two water inlets at one end close to the water flow entry, and an upper water outlet is provided on the side wall of the valve core housing away from the water flow entry end, two water flow paths are formed in the valve core, one of which is connected to one of the water inlets, the flow regulating module, the balanced hydraulic module and the upper water outlet, and the other is connected to the other inlet. The water inlet, flow regulating module, balanced hydraulic module and bottom water outlet are connected. The flow regulating module first switches the passage and controls the flow, and then enters the pressure balancing module. The pressure in the channel is balanced and controlled under the action of the pressure balancing module. The flow regulating module can cut off the hot and cold water circuits before the water enters the pressure balancing module. High-temperature water cannot soak the thermostatic valve core, thus preventing scale formation and protecting the valve core to extend its service life. At the same time, water can enter the pressure balancing module only after passing through the flow regulating module, thus preventing hot and cold water from seeping out. There is no need to install a one-way valve at the water inlet bend, thus simplifying the valve body water circuit and reducing the installation cost. After testing, the traditional valve core has a cold and hot water inlet pressure difference of 3:1, while the valve core in the present invention can achieve a cold and hot water inlet pressure difference of 20:1 after pressure adjustment in the pressure balancing module.

[0006] Preferably, the valve core base is provided with a bottom water outlet and two water inlets, and the side wall of the valve core housing is provided with two upper water outlets.

[0007] The balancing hydraulic module is arranged in the flow regulating module, and the flow regulating module is provided with a first water channel and a second water channel, the first water channel and the second water channel are respectively connected with two water inlets, the balancing hydraulic module includes a static balancing plate and a dynamic balancing plate, the static balancing plate is sealed and connected with the inner cavity of the flow regulating module, the dynamic balancing plate is sealed and slidably connected with the inner wall of the static balancing plate, a baffle plate which divides the inner cavity of the dynamic balancing plate into an upper cavity and a lower cavity is fixedly connected to the middle part of the dynamic balancing plate, the upper cavity is connected with the upper water outlet, and the lower cavity is connected with the bottom water outlet, the upper cavity side wall is provided with an upper water hole, the lower cavity side wall is provided with a lower water hole, and the static balancing plate is provided with through holes which connect the upper flow hole with the first water channel and connect the lower flow hole with the second water channel, the outer wall of the through hole connecting the first water channel and the outer wall of the upper water hole block each other to form an upper flow channel, and the outer wall of the through hole connecting the second water channel and the outer wall of the lower water hole block each other to form a lower flow channel The dynamic balancing plate moves up and down in the static balancing plate to change the water flow area of ​​the upper flow channel and the lower flow channel. Two routes for liquid circulation are formed in the valve core, one is the first water channel-upper cavity-upper water outlet, and the other is the second water channel-lower cavity-bottom water outlet. When liquid flows through the two routes, the pressure of the liquid produces a certain stress on the baffle plate in the middle of the dynamic balancing plate. When the liquid pressure in the two routes is the same, the baffle plate is located in the center of the balanced hydraulic module. At this time, the water flow area of ​​the upper flow channel and the lower flow channel is the same. When the liquid pressure in the two routes is different, the stress of the liquid on the baffle plate in the route with a large flow rate is greater than the stress on the baffle plate in the route with a low flow rate. Therefore, the baffle plate will be pushed to move the dynamic balancing plate to the end with a low flow rate, reduce the water flow area in the route with a large flow rate, and increase the water flow area in the route with a small flow rate until the liquid pressure in the two routes is balanced again.

[0008] Preferably, the flow regulating module includes a valve stem, a water pressure chamber housing, an upper switch sealing sheet and a lower switch sealing sheet, the upper end of the valve stem passes through the upper end of the valve core housing, the valve stem and the upper end of the water pressure chamber housing are detachably connected, a through hole is opened on the side wall of the valve stem to connect the upper water hole with the upper water outlet, a boss is provided on the valve core base, the middle part of the boss is connected with the bottom water outlet, the upper switch sealing sheet and the lower switch sealing sheet are sleeved on the boss from top to bottom, the upper switch sealing sheet is clamped with the water pressure chamber housing, the lower switch sealing sheet is clamped with the valve core base, two symmetrically arranged liquid inlet holes are respectively opened on the upper switch sealing sheet and the lower switch sealing sheet, and the valve stem is rotated to drive the water pressure chamber housing and the upper switch sealing sheet clamped with the water pressure chamber housing. Rotate, the upper switch sealing sheet and the lower switch sealing sheet are misaligned, which can change the overlapping area between the liquid inlet holes on the corresponding sides of the upper switch sealing sheet and the lower switch sealing sheet, that is, the water flow area between the upper switch sealing sheet and the lower switch sealing sheet, to achieve adjustment or switching of the liquid flow rate. A first channel and a second channel are provided in the shell of the water pressure chamber. The first channel and the second channel are respectively connected to the two liquid inlet holes on the upper switch sealing sheet, and the first channel and the liquid inlet holes on the upper switch sealing sheet and the lower switch sealing sheet connected to the first channel form a first water path, and the second channel and the liquid inlet holes on the upper switch sealing sheet and the lower switch sealing sheet connected to the second channel form a second water path, and the two water paths are isolated from each other.

[0009] The beneficial effects of the present invention are:

[0010] The flow regulating module can cut off the hot and cold water circuits before water enters the pressure balancing module. High-temperature water cannot soak the thermostatic valve core, thus preventing scale from forming and protecting the valve core to extend its service life. At the same time, water can enter the pressure balancing module only after passing through the flow regulating module, which can prevent hot and cold water from seeping into the water. There is no need to install a one-way valve at the water inlet bend. By optimizing the design of the synchronous switch valve core components, the synchronous valve core is changed from a single flow switch that can only adjust the flow to a switch that can adjust the flow and switch synchronously, and can also balance the pressure in the two channels. This structural change changes the product equipped with the valve core from a complex channel to a simple channel, so that the product does not need to set up a balancing module component separately, the valve body structure is simple, the water circuit is shortened, and the cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0012] Figure 2 It is a schematic diagram of the assembly structure of the present invention.

[0013] Figure 3 It is a cross-sectional structural schematic diagram of the present invention.

[0014] Figure 4 It is a partial enlarged cross-sectional view of the balanced hydraulic module.

[0015] Figure 5 It is a schematic diagram of the assembly structure of the flow regulation module.

[0016] Figure 6 It is a structural schematic diagram of an embodiment of a balanced hydraulic module.

[0017] Figure 7 It is a structural schematic diagram of an embodiment of a balanced hydraulic module.

[0018] In the figure: 1. valve core housing, 2. valve core base, 3. bottom water outlet, 4. water inlet, 5. upper water outlet, 6. static balance plate, 7. dynamic balance plate, 8. upper cavity, 9. lower cavity, 10. baffle plate, 11. upper water hole, 12. lower water hole, 13. through hole, 14. valve stem, 15. water pressure chamber housing, 16. upper switch sealing plate, 17. lower switch sealing plate, 18. boss, 19. liquid inlet hole, 20. first channel, 21. second channel, 22. sealing gasket, 23. sealing ring, 24. first opening gap, 25. second opening gap. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and the best embodiments.

[0020] As shown in the figure, the present invention includes: a valve core housing 1, a valve core base 2, a flow regulating module and a balanced hydraulic module. The valve core housing and the valve core base are clamped together to form a valve core cavity. The flow regulating module and the balanced hydraulic module are coaxially arranged in the valve core cavity. Water flows into the valve core cavity from one end of the valve core cavity and enters the balanced hydraulic module after passing through the flow regulating module. The valve core base is provided with a bottom water outlet 3 and two water inlets 4 at the end close to the water flow inlet, and an upper water outlet 5 is provided on the side wall of the valve core housing away from the water flow inlet. Two water flow paths are formed in the valve core, one of which is connected to one of the water inlets, the flow regulating module, the balanced hydraulic module and the upper water outlet, and the other is connected to the other water inlet, the flow regulating module and the balanced hydraulic module. The module is connected to the bottom water outlet. The flow regulating module first switches the passage and controls the flow, and then enters the pressure balancing module. Under the action of the pressure balancing module, the pressure in the channel is balanced and controlled. The flow regulating module can cut off the hot and cold water circuits before water enters the pressure balancing module. High-temperature water cannot soak the thermostatic valve core, eliminating scale formation, protecting the valve core and extending its service life. At the same time, water can enter the pressure balancing module only after passing through the flow regulating module, which can prevent hot and cold water from leaking. There is no need to install a one-way valve at the water inlet bend, which simplifies the valve body water circuit and reduces the installation cost. After testing, the traditional valve core has a cold and hot water inlet pressure difference of 3:1, while the valve core in the present invention can achieve a cold and hot water inlet pressure difference of 20:1 after pressure adjustment in the pressure balancing module.

[0021] Preferably, the balancing hydraulic module is arranged in the flow regulating module, and the flow regulating module is provided with a first water channel and a second water channel, the first water channel and the second water channel are respectively connected with two water inlets, the balancing hydraulic module comprises a static balancing plate 6 and a dynamic balancing plate 7, the static balancing plate is sealed and connected with the inner cavity of the flow regulating module, the dynamic balancing plate is sealed and slidably connected with the inner wall of the static balancing plate, a baffle plate 10 is fixedly connected to the middle part of the dynamic balancing plate, which divides the inner cavity of the dynamic balancing plate into an upper cavity 8 and a lower cavity 9, the upper cavity is connected with the upper water outlet, and the lower cavity is connected with the bottom water outlet, an upper water hole 11 is opened on the side wall of the upper cavity, and a lower water hole 12 is opened on the side wall of the lower cavity, and through holes 13 are respectively opened on the static balancing plate to connect the upper flow hole with the first water channel and to connect the lower flow hole with the second water channel, the outer wall of the through hole connecting the first water channel and the outer wall of the upper water hole mutually block each other to form an upper flow channel, and the outer wall of the through hole connecting the second water channel and the outer wall of the lower water hole mutually block each other The lower flow channel is blocked and the dynamic balancing plate moves up and down in the static balancing plate to change the water flow area of ​​the upper flow channel and the lower flow channel. Two routes for liquid circulation are formed in the valve core, one is the first water channel-upper cavity-upper water outlet, and the other is the second water channel-lower cavity-bottom water outlet. When liquid flows through the two routes, the pressure of the liquid produces a certain stress on the baffle plate in the middle of the dynamic balancing plate. When the liquid pressure in the two routes is the same, the baffle plate is located in the center of the balanced hydraulic module. At this time, the water flow area of ​​the upper flow channel and the lower flow channel is the same. When the liquid pressure in the two routes is different, the stress of the liquid on the baffle plate in the route with a large flow rate is greater than the stress on the baffle plate in the route with a low flow rate. Therefore, the baffle plate will be pushed to move the dynamic balancing plate to the end with low flow, reducing the water flow area in the route with a large flow rate and increasing the water flow area in the route with a small flow rate until the liquid pressure in the two routes is re-balanced.

[0022] like Figure 6 As shown in the figure, when the water inlet pressure P1in<P2in, the adjustment principle of the balancing hydraulic module is: the dynamic balancing plate will move to the left, the first opening gap 24 will become larger, and the second opening gap 25 will become smaller. Since the fluid will have pressure decay when passing through the gap, the dynamic balancing plate will remain balanced until the condition S*P1out=S*P2out is met, that is, the water outlet pressures on both sides are equal, P1out=P2out; Figure 7 As shown, when the water inlet pressure P1in>P2in, the adjustment principle of the balancing hydraulic module is: the dynamic balancing plate will move to the right, the first opening gap 24 will become smaller, and the second opening gap 25 will become larger. Since the fluid will have pressure attenuation when passing through the gap, the dynamic balancing plate will remain balanced until the condition S*P1out=S*P2out is met, that is, the water outlet pressures on both sides are equal, P1out=P2out.

[0023] Preferably, the flow regulating module includes a valve stem 14, a water pressure chamber housing 15, an upper switch sealing plate 16 and a lower switch sealing plate 17, the upper end of the valve stem passes through the upper end of the valve core housing, the valve stem and the upper end of the water pressure chamber housing are detachably connected, a through hole is opened on the side wall of the valve stem to connect the upper water hole with the upper water outlet, a boss 18 is provided on the valve core base, the middle part of the boss is connected with the bottom water outlet, the upper switch sealing plate and the lower switch sealing plate are sleeved on the boss from top to bottom, the upper switch sealing plate is clamped with the water pressure chamber housing, the lower switch sealing plate is clamped with the valve core base, two liquid inlet holes 19 arranged symmetrically with the center are respectively opened on the upper switch sealing plate and the lower switch sealing plate, rotating the valve stem drives the water pressure chamber housing and the upper switch sealing plate clamped with the water pressure chamber housing to rotate, and a liquid is generated between the upper switch sealing plate and the lower switch sealing plate. Misalignment can change the overlapping area between the liquid inlet holes on the corresponding sides of the upper switch sealing plate and the lower switch sealing plate, that is, the water flow area between the upper switch sealing plate and the lower switch sealing plate, to achieve adjustment or switching of the liquid flow rate. The opening sizes of the two overlapping areas are always equal, ensuring that the opening areas of cold and hot water are the same. Rotating to adjust the flow does not affect the temperature of the water outlet of the thermostatic valve core. A first channel 20 and a second channel 21 are provided in the shell of the water pressure chamber. The first channel and the second channel are respectively connected to the two liquid inlet holes on the upper switch sealing plate. The first channel and the liquid inlet holes on the upper switch sealing plate and the lower switch sealing plate connected to the first channel form a first water path. The second channel and the liquid inlet holes on the upper switch sealing plate and the lower switch sealing plate connected to the second channel form a second water path. The two water paths are isolated from each other.

[0024] In order to ensure the sealing between the components in the embodiment, sealing gaskets are provided between the water pressure chamber housing and the upper switch sealing plate and between the lower switch sealing plate and the valve core base, and sealing rings 23 are provided on the valve stem and the dynamic balance plate.

[0025] In this embodiment, the synchronous switching valve core component is optimized in design so that the synchronous valve core is changed from a single switch that can only adjust the flow to one that can both adjust the flow and switch synchronously, and can also balance the pressure in the two channels. This structural change changes the product equipped with the valve core from a complex channel to a simple channel, so that the product does not need to set up a separate balancing module component, the valve body structure is simple, the water path is shortened, and the cost is reduced. In addition, since the switching method of the synchronous switching valve core with a pressure stabilizing function is to synchronously shut off the two channels entering the valve core, the product equipped with the valve core does not need to install a one-way check valve at the product inlet, which overcomes the disadvantage that the one-way check valve is prone to failure.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A synchronous switch valve core with a pressure stabilizing function, characterized in that: include: Valve core housing, valve core base, flow control module and balanced hydraulic module, The valve core housing is clamped with the valve core base to form a valve core cavity, the flow regulating module and the balanced hydraulic module are coaxially arranged in the valve core cavity, water flows into the valve core cavity from one end of the valve core cavity, passes through the flow regulating module, and then enters the balanced hydraulic module, the valve core base is provided with a bottom water outlet and two water inlets at one end close to the water flow inlet, and an upper water outlet is provided on the side wall of the valve core housing away from the water flow inlet, one of the water inlets is connected to the upper water outlet, and the other water inlet is connected to the bottom water outlet; The balancing hydraulic module is arranged in the flow regulating module, and the flow regulating module is provided with a first water channel and a second water channel, and the first water channel and the second water channel are respectively communicated with two water inlets, and the balancing hydraulic module includes a static balancing plate and a dynamic balancing plate, and the static balancing plate is sealed and connected with the inner cavity of the flow regulating module, and the dynamic balancing plate is sealed and slidably connected with the inner wall of the static balancing plate, and a baffle plate is fixedly connected to the middle of the dynamic balancing plate to divide the inner cavity of the dynamic balancing plate into an upper cavity and a lower cavity, and the upper cavity is communicated with the upper water outlet, and the lower cavity is connected with the lower cavity. The bottom water outlet is connected, the upper cavity side wall is provided with an upper water hole, the lower cavity side wall is provided with a lower water hole, the static balance sheet is provided with through holes for connecting the upper water hole with the first water channel and for connecting the lower water hole with the second water channel, the outer wall of the through hole connecting the first water channel and the outer wall of the upper water hole cover each other to form an upper flow channel, the outer wall of the through hole connecting the second water channel and the outer wall of the lower water hole cover each other to form a lower flow channel, and the dynamic balance sheet moves up and down in the static balance sheet to change the water flow area of ​​the upper flow channel and the lower flow channel; The flow regulating module includes a valve stem, a water pressure chamber housing, an upper switch sealing sheet and a lower switch sealing sheet. The upper end of the valve stem passes through the upper end of the valve core housing, and the valve stem is detachably connected to the upper end of the water pressure chamber housing. A through hole is opened on the side wall of the valve stem to connect the upper water hole with the upper water outlet. A boss is provided on the valve core base, and the middle part of the boss is connected with the bottom water outlet. The upper switch sealing sheet and the lower switch sealing sheet are sleeved on the boss from top to bottom, the upper switch sealing sheet is clamped with the water pressure chamber housing, and the lower switch sealing sheet is clamped with the valve core base. Two liquid inlet holes arranged symmetrically are opened on the upper switch sealing sheet and the lower switch sealing sheet respectively, and a first channel and a second channel are provided in the water pressure chamber housing. The first channel and the second channel are respectively connected with the two liquid inlet holes on the upper switch sealing sheet.

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