Low-water-attack electromagnetic valve

Abstract

The utility model provides a low water attack solenoid valve, including valve body, valve seat and bonnet, the bonnet is installed on the valve body, the inside of valve body is horizontally provided with water inlet channel and water outlet channel, the inside of valve body is also provided with the valve port that is located between water inlet channel and water outlet channel and is perpendicular to water inlet channel and water outlet channel, the valve seat is installed on the valve port, and the bonnet is installed on the valve seat. The side wall of the valve seat is provided with a water outlet used for being communicated with the water inlet channel and the water outlet channel, the valve seat is provided with a water stop seat used for blocking the water outlet, the water stop seat is installed in the valve body in an up-down moving mode, and a pressure relief mechanism used for controlling the water stop seat to move up and down so as to control opening and closing of the water outlet is arranged in the valve body. The structure that the closing direction of the valve is opposite to the flowing direction of water flow is adopted, and therefore impact on the water stop seat when the water stop seat is closed can be effectively relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a low water hammer solenoid valve. Background Art

[0002] With the development of science and technology, the types of faucet structures have become more diverse, from the early mechanical type to the current electronic type, giving consumers more choices. The electronic type is more often controlled by a small-flow solenoid valve. However, these existing products have the same valve closing direction as the water flow direction, resulting in the valve being driven by both external force and water pressure when closed, which often severely impacts the valve body, resulting in a shortened product life.

[0003] In view of this, the inventors of this case conducted in-depth research on the above-mentioned issues, which led to the creation of this case. Utility Model Content

[0004] The purpose of the utility model is to address the above shortcomings and provide a low water hammer solenoid valve with a structure in which the valve closing direction is opposite to the water flow direction, thereby effectively alleviating the impact received when the water stop seat is closed.

[0005] The solution adopted by the utility model to solve the technical problem is: a low water hammer solenoid valve, including a valve body, a valve seat and a valve cover, the valve cover is installed on the valve body, the valve body is horizontally provided with an inlet channel and a water outlet channel, the valve body is also provided with a valve port located between the water inlet channel and the water outlet channel and perpendicular to the water inlet channel and the water outlet channel, the valve seat is installed on the valve port, the side wall of the valve seat is provided with a water outlet for connecting the water inlet channel and the water outlet channel, the valve seat is provided with a water stop seat for sealing the water outlet, the water stop seat is installed in the valve body in a movable manner, and the valve body is provided with a pressure relief mechanism for controlling the up and down movement of the water stop seat and thereby controlling the opening and closing of the water outlet.

[0006] Furthermore, in order to control the water stop seat to resist the water pressure and seal on the water outlet or move up under the action of water pressure; the pressure relief mechanism includes a pressure relief chamber, a pressure relief flow channel and a pressure relief hole, the pressure relief chamber is arranged in the valve body and above the valve seat, the pressure relief flow channel is arranged in the side wall of the valve body, one end of the pressure relief flow channel is the water inlet end, and the other end of the pressure relief flow channel is the water outlet end, the water inlet end is connected with the pressure relief chamber, the pressure relief hole is arranged on the side wall of the valve body, and the water outlet end is arranged next to the pressure relief hole. The valve body is provided with a controller for controlling the connection and disconnection of the water outlet end and the pressure relief hole, the pressure relief hole is connected with the water outlet channel so as to connect the pressure relief chamber and the water outlet channel by controlling the connection between the water outlet end and the pressure relief hole, thereby controlling the pressure relief of the pressure relief chamber to ensure that the water stop seat moves up under the action of the water pressure below to open the water outlet.

[0007] Furthermore, in order to guide the water stop seat to move up and down; a guide bracket is provided in the pressure relief chamber, and the guide bracket includes a main body mounted on the valve seat and a guide rod extending downward from the main body. A guide hole is provided on the water stop seat, and the guide rod is movably inserted into the guide hole to guide the water stop seat to move up and down, and the aperture of the guide hole is slightly larger than the rod diameter of the guide rod to ensure that a small part of the water in the water inlet channel flows into the pressure relief chamber through the gap between the guide rod and the guide hole.

[0008] Furthermore, in order to drive the water stop seat to reset downward and re-seal the water outlet, a reset spring for resetting the water stop seat downward is provided on the guide rod.

[0009] Furthermore, in order to install the guide bracket in the valve seat; a hook is provided on the side wall of the main body, and a slot is provided on the side wall of the valve seat, the hook is inserted into the slot to install the guide bracket in the valve seat, and a stop groove is provided on the upper side of the valve seat, and a flange extending radially outward is provided on the upper side of the main body, and the flange is mounted on the valve seat to install the guide bracket on the valve seat, and a stop plate is extended downward from the flange for embedding in the stop groove to lock the guide bracket from rotating.

[0010] Furthermore, in order to ensure that the water stop seat blocks the water outlet; the water stop seat includes a seat body, a rubber diaphragm, a water stop rubber sleeve and a snap ring, the guide hole is provided on the seat body, the rubber diaphragm includes a connecting portion for fixedly connected to the seat body, an elastic portion arranged around the outer periphery of the connecting portion for generating elasticity, and a mounting portion arranged around the outer periphery of the elastic portion for connecting to the valve body, the connecting portion is sleeved on the seat body, the upper side of the seat body is provided with a limiting flange extending radially outward, the lower side of the seat body is provided with an elastic hook extending downward, the snap ring is provided with a clamping hole, the elastic hook is clamped into the clamping hole, thereby cooperating with the limiting flange to limit the connection portion and mount it on the seat body;

[0011] The valve body is provided with an installation step located below the guide bracket, the installation part is installed between the guide bracket and the installation step, the outer periphery of the connecting part is provided with an annular groove, and the water-stop rubber sleeve is arranged in the annular groove so as to seal with the water outlet on the side wall of the valve seat.

[0012] Furthermore, in order to install the mounting part between the guide bracket and the mounting step; the inner side ring of the mounting step is provided with an upper protrusion, the lower side ring of the mounting part is provided with a lower groove for cooperating with the upper protrusion, the inner side ring of the lower side of the main body is provided with a lower protrusion, and the upper side ring of the mounting part is provided with an upper groove for cooperating with the lower protrusion.

[0013] Furthermore, in order to install the valve seat on the valve port, the valve seat is annular in structure, and a step portion is provided on the lower side of the valve seat for limiting the valve seat and installing it above the valve port.

[0014] Compared with the prior art, the utility model has the following advantages: the utility model adopts a structure in which the water inlet direction is opposite to the valve closing direction. When the pressure above the water stop seat increases and drives the water stop seat to move downward to close the water outlet, the water inlet direction can provide an opposite force, thereby effectively avoiding the violent impact caused by the sudden closing of the water stop seat, so that the service life of the product is guaranteed. In addition, the utility model has a simple structure. When in use, the water outlet end and the pressure relief hole are connected through the controller, so that the pressure relief chamber is connected to the external atmospheric pressure, thereby reducing the pressure in the pressure relief chamber. The water pressure below the water stop seat is greater than the pressure in the pressure relief chamber, and the water stop seat is lifted up. When the water outlet end is disconnected from the pressure relief hole, a small part of the water flow continues to flow into the pressure relief chamber through the gap between the guide rod and the guide hole, and the water pressure in the pressure relief chamber continues to increase. Cooperating with the rubber diaphragm to restore deformation, the water stop seat is driven to re-seal the water outlet, thereby completing water stopping. It is easy to use and has reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural sectional view of the utility model;

[0018] Figure 3 This is an exploded view of the structure of the present invention.

[0019] In the figure: valve body 1; water inlet channel 11; water outlet channel 12; valve port 13; valve seat 2; water outlet 21; step portion 22; anti-rotation groove 23; bayonet 24; mounting step 25; valve cover 3; water stop seat 4; seat body 41; guide hole 411; limiting flange 412; elastic hook 413; rubber diaphragm 42; connecting portion 421; elastic portion 422; mounting portion 423; water stop rubber sleeve 43; snap ring 44; pressure relief mechanism 5; pressure relief chamber 51; pressure relief flow channel 52; water inlet end 521; water outlet end 522; pressure relief hole 53; guide bracket 6; body 61; flange 611; anti-rotation plate 612; hook 613; guide rod 62. DETAILED DESCRIPTION

[0020] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments:

[0021] Example: Figure 1-3As shown, this embodiment provides a low water hammer solenoid valve, including a valve body 1, a valve seat 2 and a valve cover 3, the valve cover 3 is installed on the valve body 1, and a water inlet channel 11 and a water outlet channel 12 are horizontally provided in the valve body 1, and a valve port 13 is also provided in the valve body 1, which is located between the water inlet channel 11 and the water outlet channel 12 and perpendicular to the water inlet channel 11 and the water outlet channel 12, the valve seat 2 is installed on the valve port 13, and a water outlet 21 for connecting the water inlet channel 11 and the water outlet channel 12 is provided on the side wall of the valve seat 2, a water stop seat 4 for sealing the water outlet 21 is provided on the valve seat 2, the water stop seat 4 is movably installed in the valve body 1, and a pressure relief mechanism 5 is provided in the valve body 1 for controlling the up and down movement of the water stop seat 4 and thereby controlling the opening and closing of the water outlet 21.

[0022] In this embodiment, in order to control the water stop seat 4 to resist the water pressure and seal on the water outlet 21 or move up under the action of water pressure; the pressure relief mechanism 5 includes a pressure relief chamber 51, a pressure relief flow channel 52 and a pressure relief hole 53, the pressure relief chamber 51 is provided in the valve body 1 and is located above the valve seat 2, the pressure relief flow channel 52 is provided in the side wall of the valve body 1, one end of the pressure relief flow channel 52 is the water inlet end 521, and the other end of the pressure relief flow channel 52 is the water outlet end 522, and the water inlet end 521 is connected to the pressure relief chamber 51 The pressure relief hole 53 is provided on the side wall of the valve body 1, and the water outlet end 522 is provided next to the pressure relief hole 53. The valve body 1 is provided with a controller (not shown in the figure) for controlling the connection and disconnection of the water outlet end 522 and the pressure relief hole 53. The pressure relief hole 53 is connected with the water outlet channel 12 so that the pressure relief chamber 51 and the water outlet channel 12 are connected by controlling the connection between the water outlet end 522 and the pressure relief hole 53, thereby controlling the pressure relief of the pressure relief chamber 51 to ensure that the water stop seat 4 moves upward under the action of the water pressure below to open the water outlet 21.

[0023] In this embodiment, in order to guide the water stop seat 4 to move up and down, a guide bracket 6 is provided in the pressure relief chamber 51, and the guide bracket 6 includes a main body 61 mounted on the valve seat 2 and a guide rod 62 extending downward from the main body 61. A guide hole 411 is provided on the water stop seat 4, and the guide rod 62 is movably inserted into the guide hole 411 to guide the water stop seat 4 to move up and down, and the aperture of the guide hole 411 is slightly larger than the rod diameter of the guide rod 62 to ensure that a small part of the water in the water inlet channel 11 flows into the pressure relief chamber 51 through the gap between the guide rod 62 and the guide hole 411.

[0024] In this embodiment, in order to drive the water stop seat 4 to reset downward and reseal the water outlet 21, a reset spring (not shown in the figure) for resetting the water stop seat 4 downward is sleeved on the guide rod 62.

[0025] In this embodiment, in order to install the guide bracket 6 in the valve seat 2; a hook 613 is provided on the side wall of the main body 61, and a bayonet 24 is provided on the side wall of the valve seat 2. The hook 613 is inserted into the bayonet 24 to install the guide bracket 6 in the valve seat 2. A stop groove 23 is provided on the upper side of the valve seat 2. A flange 611 extending radially outward is provided on the upper side of the main body 61. The flange 611 is mounted on the valve seat 2 to install the guide bracket 6 on the valve seat 2. A stop plate 612 is extended downward from the flange 611 for embedding in the stop groove 23 to lock the guide bracket 6 from rotating.

[0026] In this embodiment, in order to ensure that the water stop seat 4 blocks the water outlet 21; the water stop seat 4 includes a seat body 41, a rubber diaphragm 42, a water stop rubber sleeve 43 and a snap ring 44, the guide hole 411 is provided on the seat body 41, the rubber diaphragm 42 includes a connecting portion 421 for fixedly connected to the seat body 41, an elastic portion 422 arranged around the outer periphery of the connecting portion 421 for generating elasticity, and a mounting portion 423 arranged around the outer periphery of the elastic portion 422 for connecting to the valve body 1, the connecting portion 421 is sleeved on the seat body 41, the upper side of the seat body 41 is provided with a limiting flange 412 extending radially outward, the lower side of the seat body 41 is provided with an elastic hook 413 extending downward, the snap ring 44 is provided with a clamping hole, the elastic hook 413 is clamped into the clamping hole, thereby cooperating with the limiting flange 412 to limit the connection portion 421 and install it on the seat body 41;

[0027] The valve body 1 is provided with an installation step 25 located below the guide bracket 6, and the installation portion 423 is installed between the guide bracket 6 and the installation step 25. The outer periphery of the connecting portion 421 is provided with an annular groove, and the water-stop rubber sleeve 43 is sleeved in the annular groove so as to seal with the water outlet 21 on the side wall of the valve seat 2.

[0028] In this embodiment, in order to install the mounting portion 423 between the guide bracket 6 and the mounting step 25; the inner side ring of the mounting step 25 is provided with an upper protrusion, and the lower side ring of the mounting portion 423 is provided with a lower groove for cooperating with the upper protrusion, the inner side ring of the lower side of the main body 61 is provided with a lower protrusion, and the upper side ring of the mounting portion 423 is provided with an upper groove for cooperating with the lower protrusion.

[0029] In this embodiment, in order to install the valve seat 2 on the valve port 13 , the valve seat 2 is annular in structure, and a step portion 22 is provided on the lower side of the valve seat 2 for limiting the valve seat 2 to be installed above the valve port 13 .

[0030] The utility model adopts a structure in which the water inlet direction is opposite to the valve closing direction. When the pressure above the water stop seat 4 increases, the water stop seat 4 is driven to move downward to close the water outlet 21. The water inlet direction can provide an opposite force, thereby effectively avoiding the violent impact caused by the sudden closing of the water stop seat 4, so that the service life of the product is guaranteed. In addition, the utility model has a simple structure. When in use, the water outlet end 522 and the pressure relief hole 53 are connected through the controller, so that the pressure relief chamber 51 is connected to the external atmospheric pressure, thereby reducing the pressure in the pressure relief chamber 51. The water pressure below the water stop seat 4 is greater than the pressure in the pressure relief chamber 51, and the water stop seat 4 is lifted up. When the water outlet end 522 is disconnected from the pressure relief hole 53, a small part of the water flow continues to flow into the pressure relief chamber 51 through the gap between the guide rod 62 and the guide hole 411. The water pressure in the pressure relief chamber 51 continues to increase, and the rubber diaphragm 42 recovers its deformation, driving the water stop seat 4 to re-seal the water outlet 21, thereby completing water stopping. It is easy to use and has reliable performance.

[0031] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present invention.

Claims

1. A low water hammer solenoid valve, characterized by: The closure of the valve body is constructed so that when the closure is closed, the valve body is closed and the closure is closed. The closure is constructed so that when the closure is closed, the valve body is closed and the closure is closed. When the closure is closed, the valve body is closed and the closure is closed.

2. The low water hammer solenoid valve according to claim 1, characterized in that: The pressure relief mechanism includes a pressure relief chamber, a pressure relief flow channel and a pressure relief hole. The pressure relief chamber is arranged in the valve body and above the valve seat. The pressure relief flow channel is arranged in the side wall of the valve body. One end of the pressure relief flow channel is a water inlet end, and the other end of the pressure relief flow channel is a water outlet end. The water inlet end is connected with the pressure relief chamber, the pressure relief hole is arranged on the side wall of the valve body, and the water outlet end is arranged next to the pressure relief hole. The valve body is provided with a controller for controlling the connection and disconnection of the water outlet end and the pressure relief hole. The pressure relief hole is connected with the water outlet channel so as to connect the pressure relief chamber and the water outlet channel by controlling the connection between the water outlet end and the pressure relief hole, thereby controlling the pressure relief of the pressure relief chamber to ensure that the water stop seat moves up under the action of the water pressure below to open the water outlet.

3. The low water hammer solenoid valve according to claim 2, characterized in that: A guide bracket is provided in the pressure relief chamber, and the guide bracket includes a main body mounted on the valve seat and a guide rod extending downward from the main body. A guide hole is provided on the water stop seat, and the guide rod is movably inserted into the guide hole to guide the water stop seat to move up and down, and the aperture of the guide hole is slightly larger than the rod diameter of the guide rod to ensure that a small part of the water in the water inlet channel flows into the pressure relief chamber through the gap between the guide rod and the guide hole.

4. The low water hammer solenoid valve according to claim 3, characterized in that: A reset spring for resetting the water stop seat downward is sleeved on the guide rod.

5. The low water hammer solenoid valve according to claim 3, characterized in that: A hook is provided on the side wall of the main body, and a slot is provided on the side wall of the valve seat. The hook is inserted into the slot to install the guide bracket in the valve seat. A stop groove is provided on the upper side of the valve seat. A flange extending radially outward is provided on the upper side of the main body. The flange is mounted on the valve seat to install the guide bracket on the valve seat. A stop plate is extended downward from the flange for embedding in the stop groove to lock the guide bracket from rotating.

6. The low water hammer solenoid valve according to claim 3, characterized in that: The water stop seat includes a seat body, a rubber diaphragm, a water stop rubber sleeve and a snap ring, the guide hole is provided on the seat body, the rubber diaphragm includes a connecting portion for fixedly connecting to the seat body, an elastic portion arranged around the outer periphery of the connecting portion for generating elasticity, and a mounting portion arranged around the outer periphery of the elastic portion for connecting to the valve body, the connecting portion is sleeved on the seat body, a limiting flange extending radially outward is provided on the upper side of the seat body, an elastic hook extending downward is provided on the lower side of the seat body, a clamping hole is provided on the snap ring, the elastic hook is clamped into the clamping hole, thereby cooperating with the limiting flange to limit the connection portion and mount it on the seat body; The valve body is provided with an installation step located below the guide bracket, the installation part is installed between the guide bracket and the installation step, the outer periphery of the connecting part is provided with an annular groove, and the water-stop rubber sleeve is arranged in the annular groove so as to seal with the water outlet on the side wall of the valve seat.

7. The low water hammer solenoid valve according to claim 6, characterized in that: The inner side ring of the installation step is provided with an upper protrusion, the lower side ring of the installation portion is provided with a lower groove for cooperating with the upper protrusion, the inner side ring of the lower side of the body is provided with a lower protrusion, and the upper side ring of the installation portion is provided with an upper groove for cooperating with the lower protrusion.

8. The low water hammer solenoid valve according to claim 1, characterized in that: The valve seat is annular in structure, and a step portion is provided on the lower side of the valve seat for limiting the valve seat and installing it above the valve port.

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