Throttle valve and water purification equipment

Abstract

The utility model discloses a throttle valve and water purification equipment, the throttle valve comprises a valve body, a driving assembly, a throttle element and a diaphragm assembly, a valve cavity is formed in the valve body, and a mounting seat is arranged in the valve body; the driving assembly comprises a valve element seat and a valve element, the valve element seat is connected to the valve body, and the valve element is located in the valve element seat; the throttling element is arranged in the valve cavity, the throttling element and the installation base are matched in a sealed mode to divide the valve cavity into a high-pressure cavity and a low-pressure cavity, and when the throttling valve is in a throttling mode, the valve element abuts against the diaphragm assembly on the two protruding ribs and the sealing rib. According to the technical scheme, the two protruding ribs and the sealing rib are arranged on the throttling piece, the throttling channels are formed when the diaphragm assembly abuts against the two protruding ribs, the supporting rib is arranged between the throttling channels in a protruding mode, and therefore the diaphragm assembly is supported, the diaphragm assembly is prevented from being excessively deformed to extrude the throttling channels, and the service life of the diaphragm assembly is prolonged. Therefore, the pre-membrane pressure of the reverse osmosis membrane is improved, and the service life of the water purification equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a throttle valve and water purification equipment. Background Art

[0002] The throttle valve uses an open-and-closed throttling channel to replace the wastewater in the throttling channel with raw water when the solenoid valve is flushed, thereby achieving an anti-blocking effect. However, under high pressure, the rubber diaphragm with low rigidity will deform in the direction of the throttling channel, resulting in a decrease in the cross-sectional area of ​​the channel and an increase in the local resistance coefficient of the wastewater solenoid valve. This will increase the pre-mold pressure of the reverse osmosis membrane in the water purifier, significantly reduce the life of the reverse osmosis membrane, and thus reduce the service life of the water purification equipment. Utility Model Content

[0003] The main purpose of the utility model is to provide a throttle valve, aiming to increase the service life of water purification equipment.

[0004] To achieve the above-mentioned purpose, the throttle valve proposed by the utility model comprises:

[0005] A valve body, a valve cavity is formed inside the valve body, and a mounting seat is arranged inside the valve body;

[0006] A driving assembly, comprising a valve core seat and a valve core, wherein the valve core seat is connected to the valve body, and the valve core is located in the valve core seat;

[0007] A throttling member is arranged in the valve cavity, the throttling member and the mounting seat are sealed to separate the valve cavity into a high-pressure cavity and a low-pressure cavity, a water outlet channel is opened in the middle of the throttling member, the throttling member has a first end face close to the valve core, the first end face is provided with two convex ribs and a sealing rib, a throttling channel connected to the water outlet channel is formed between the two convex ribs, the sealing rib is located at the outer edge of the water outlet channel, a notch is opened on the outer periphery of the sealing rib, and the two convex ribs are respectively connected to the sealing ribs on both sides of the notch;

[0008] A diaphragm assembly is arranged between the throttling element and the valve core;

[0009] When the throttle valve is in the throttling mode, the valve core presses the diaphragm assembly against the two convex ribs and the sealing rib;

[0010] Wherein, the first end surface is protrudingly provided with a support rib, and the support rib is located between the two convex ribs.

[0011] In one embodiment, a height of the supporting rib relative to the first end surface is less than or equal to a height of the convex rib relative to the first end surface.

[0012] In one embodiment, a height of the supporting rib relative to the first end surface is H1, a height of the convex rib relative to the first end surface is H2, and H1 and H2 satisfy 0≤H2-H1≤15mm.

[0013] In one embodiment, a plurality of partition ribs are protrudingly provided on the first end surface, the plurality of partition ribs are respectively connected to the outer periphery of the sealing rib, and the plurality of partition ribs are distributed on the first end surface at intervals.

[0014] In one embodiment, a height of the separation rib relative to the first end surface is smaller than a height of the sealing rib relative to the first end surface.

[0015] In one embodiment, a reinforcing platform is provided on a side of the convex rib away from the throttling channel, and the reinforcing platform extends from a middle portion of the convex rib toward the first end surface.

[0016] In one embodiment, a height of the convex rib relative to the first end surface is consistent with a height of the sealing rib relative to the first end surface.

[0017] In one embodiment, the distances between the supporting rib and the two convex ribs are equal.

[0018] In one embodiment, the diaphragm assembly includes a diaphragm bracket and a diaphragm body, a limiting column is arranged in the middle of the diaphragm bracket, a limiting groove is arranged on the outer periphery of the limiting column, a center hole is arranged on the diaphragm body, and the limiting column passes through the center hole to limit the diaphragm body in the limiting groove.

[0019] In one embodiment, the diaphragm body includes a sealing portion, a deformation portion and a pressing portion which are connected in sequence, the pressing portion presses against the first end face, a sleeve is provided in the valve core seat, the valve core is located in the sleeve, the sealing portion is sealed and connected to the sleeve to separate the high-pressure chamber into a first chamber and a second chamber, the diaphragm bracket is provided with a connecting hole, the connecting hole is used to connect the first chamber and the second chamber, and when the throttle valve is in the flushing mode, the deformation portion is deformed by the water pressure to separate the diaphragm assembly from the first end face.

[0020] In one embodiment, the throttling element is integrally formed.

[0021] The utility model also proposes a water purification device, which includes a throttle valve, which includes a valve body, a drive assembly, a throttling member and a diaphragm assembly, a valve cavity is formed inside the valve body, and a mounting seat is arranged in the valve body; the drive assembly includes a valve core seat and a valve core, the valve core seat is connected to the valve body, and the valve core is located in the valve core seat; the throttling member is arranged in the valve cavity, and the throttling member and the mounting seat are sealed to separate the valve cavity into a high-pressure cavity and a low-pressure cavity, a water outlet channel is opened in the middle of the throttling member, and the throttling member has a first end face close to the valve core, and the throttling member has a first end face close to the valve core. The first end face is provided with two convex ribs and a sealing rib, a throttling channel connected to the water outlet channel is formed between the two convex ribs, the sealing rib is located at the outer edge of the water outlet channel, a notch is opened on the outer periphery of the sealing rib, and the two convex ribs are respectively connected to the sealing ribs on both sides of the notch; a diaphragm assembly is arranged between the throttling part and the valve core; when the throttle valve is in the throttling mode, the valve core presses the diaphragm assembly against the two convex ribs and the sealing rib; wherein, the first end face is protrudingly provided with a supporting rib, and the supporting rib is located between the two convex ribs.

[0022] The technical solution of the utility model adopts the method of arranging two convex ribs and sealing ribs on the throttling part, so that the diaphragm assembly forms a throttling channel when pressing the two convex ribs, and supporting ribs are protrudingly provided between the throttling channels to support the diaphragm assembly, thereby preventing the diaphragm assembly from excessively deforming and squeezing the throttling channel, thereby increasing the membrane front pressure of the reverse osmosis membrane, and further increasing the service life of the water purification equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a structural schematic diagram of the throttle valve of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the throttle valve of the utility model in a cross-sectional view;

[0026] Figure 3 It is a schematic diagram of the structure of a throttling device in one embodiment;

[0027] Figure 4 It is a structural schematic diagram of the throttle valve of the utility model in another cross-sectional view;

[0028] Figure 5 It is a structural schematic diagram of the diaphragm assembly;

[0029] Figure 6 is a schematic diagram of the structure of the diaphragm bracket;

[0030] Figure 7 Schematic diagram of the structure of the diaphragm body.

[0031] Description of Figure Numbers:

[0032]

[0033]

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] In a drinking water purification device with a reverse osmosis membrane structure, a throttle valve is required to throttle and flush the front end of the reverse osmosis membrane. The throttling channel of the existing throttle valve is usually a small hole in the valve body or a metal capillary.

[0039] However, when the throttle valve is throttling, the liquid passing through the throttle channel is wastewater with a high concentration of calcium and magnesium ions. The existing throttle valve has a throttle channel with a small diameter. After the throttle valve is turned on in the flushing mode, the water flow is blocked and cannot pass through the throttle channel. Therefore, the wastewater in the flow channel cannot be discharged, which makes the throttle channel easy to clog, making the throttle valve ineffective; the existing metal capillary is also easy to clog because the metal material is easy to adsorb calcium and magnesium ions and form crystals, which makes the throttle valve ineffective. The service life of the drinking water purification equipment is reduced.

[0040] In order to solve the above problems, an open-and-close flow channel scheme with a diaphragm covering the flow channel disc has emerged. This scheme can replace the wastewater in the throttling flow channel with raw water when the solenoid valve is flushed, thereby achieving an anti-blocking effect. However, under high pressure, the rubber diaphragm with lower stiffness will deform in the direction of the throttling flow channel, resulting in a decrease in the cross-sectional area of ​​the flow channel and an increase in the local resistance coefficient of the wastewater solenoid valve, which is the high-pressure resistance-increasing effect. The high-pressure resistance-increasing effect will increase the pre-mold pressure of the reverse osmosis membrane in the water purifier, which is particularly obvious when the reverse osmosis membrane begins to decay. When the pre-mold pressure increases too high, it will significantly reduce the life of the reverse osmosis membrane.

[0041] In view of this, the utility model proposes a throttle valve 10 .

[0042] The utility model provides a throttle valve 10, such as Figure 1 , Figure 2 and Figure 5 As shown, it is used in a water purification device, and is specifically arranged in the water system of the water purification device, wherein the throttle valve 10 of the utility model is connected to the wastewater waterway, so it can also be called a wastewater valve. The throttle valve 10 includes an inlet pipe 600 and an outlet pipe 700, which are respectively arranged on the valve body 100. The wastewater waterway is divided into two sections, one of which is connected to the inlet pipe 600, and the other is connected to the outlet pipe 700, so the water in the wastewater waterway flows through the throttle valve 10 for throttling. The inlet pipe 600 and the outlet pipe 700 can be connected to the valve body 100, or can be formed integrally with the valve body 100, which is not specifically limited here.

[0043] Mainly, see Figure 2The throttle valve 10 includes a valve body 100, a drive assembly 200, a throttle member 300 and a diaphragm assembly 400. A valve chamber 110 is formed in the valve body 100, wherein the valve chamber 110 is divided into a high-pressure chamber 111 and a low-pressure chamber 112 by components in the valve body 100. The water inlet pipe 600 is connected to the high-pressure chamber 111, and the water outlet pipe 700 is connected to the low-pressure chamber 112. The throttle valve 10 of the utility model is a throttle valve 10 of constant throttling. The specific type of the throttle valve 10 can be a mechanical valve or a solenoid valve. In the present embodiment, the throttle valve 10 is configured as a solenoid valve. At this time, the drive assembly 200 is equivalent to a coil assembly. By energizing the coil assembly of the solenoid valve, the movement of the valve core 210 is controlled. At this time, the valve core 210 in the drive assembly 200 is equivalent to a moving iron core.

[0044] For more details, please refer to Figure 2 , wherein a mounting seat 120 is arranged in the valve body 100, and the mounting seat 120 is a ring platform protruding from the bottom wall of the valve body 100, and a chamber is enclosed inside the mounting seat 120, and the chamber is connected to the water outlet pipe 700, and the throttling member 300 cooperates with the mounting seal to separate the valve cavity 110 into a high-pressure cavity 111 and a low-pressure cavity 112, wherein the low-pressure cavity 112 is located inside the enclosed portion of the mounting seat 120 and the throttling member 300, and the high-pressure cavity 111 is located between the mounting seat 120 and the valve body 100. The throttle 300 and the mounting seat 120 are sealed by a sealing ring 800, the throttle 300 partially extends into the mounting seat 120, and the sealing ring 800 is located between the outer wall of the throttle 300 and the inner wall of the mounting seat 120. In order to better assemble the sealing ring 800 between the throttle 300 and the mounting seat 120, an annular groove is provided on the outer wall of the throttle 300, and the sealing ring 800 is arranged in the annular groove, and the sealing ring 800 is partially exposed in the annular groove, and then the throttle 300 is installed in the mounting seat 120. Of course, an annular groove for placing the sealing ring 800 can also be provided on the inner wall of the mounting seat 120.

[0045] See also Figure 3The throttling member 300 is roughly configured as a special-shaped disc structure, with the side close to the valve core 210 being disc-shaped, and the side close to the mounting seat 120 being tubular. A water hole is opened in the middle of the throttling member 300. The throttling member 300 has a first end face 310, and two convex ribs 340 and a sealing rib 350 are protrudingly provided on the first end face 310, and the heights of the two convex ribs 340 and the sealing rib 350 relative to the first end face 310 are substantially consistent. When in the normal throttling mode, the diaphragm assembly 400 is pressed against the two convex ribs 340 and the sealing rib 350 by the valve core 210, so that a throttling channel 320 is formed between the two convex ribs 340 and the diaphragm assembly 400. Therefore, at this time, the high-pressure chamber 111 and the low-pressure chamber 112 can only be connected to each other through the throttling channel 320. The throttling channel 320 can be arranged in an arc shape, or it can be a straight channel opened in the radial direction of the first end face 310. The shape of the throttling channel 320 depends on the shape of the two convex ribs 340. The two convex ribs 340 can be arranged in an arc shape, or they can be arranged in a straight plate shape, which is not specifically limited here.

[0046] like Figure 2 As shown, the driving assembly 200 mainly includes a valve core seat 220 and a valve core 210, wherein the valve core seat 220 is connected and matched with the valve body 100, and the specific connection method can be screw connection or welding, which is not specifically limited here. The valve core 210 is movably arranged in the valve core seat 220, so the valve core 210 has a first position when the coil assembly is not energized and a second position when energized.

[0047] After the throttle valve 10 is installed in the water inlet system, there are two operating modes, one is the normal throttling mode, and the other is the flushing mode. When the throttle valve 10 is in the normal throttling mode, the throttle valve 10 is not powered, and the valve core 210 is in the first position, the valve core 210 presses against the diaphragm assembly 400, and the diaphragm assembly 400 is also affected by the high pressure of the chamber between it and the coil assembly to press against the two convex ribs 340 and the sealing rib 350, so at this time, the water flow in the high-pressure chamber 111 can only flow into the water outlet channel 330 in the middle of the throttling member 300 through the throttling channel 320 in the throttling member 300. When the throttle valve 10 is in the flushing mode, the throttle valve 10 is energized, and under the influence of the coil assembly, the valve core 210 moves in the direction away from the diaphragm assembly 400. At this time, the valve core 210 is in the second position. At this time, the diaphragm assembly 400 is affected by the high-pressure chamber 111 and separated from the throttling channel 320, so that a flushing channel 500 is formed between the diaphragm assembly 400 and the throttling member 300, so that the water flow can directly flow from the flushing channel 500 into the low-pressure chamber 112 in the mounting seat 120. Among them, the flushing channel 500 is located between the diaphragm assembly 400 and the throttling member 300, and the accompanying drawings illustrate Figure 3 The drawings are only for better illustrating the structure of the present invention.

[0048] It should be noted that when the flushing mode is turned on, it is no longer waste water but raw water (tap water) that enters the throttle valve 10. The raw water flows through the valve cavity 110 and the throttle channel 320 to flush the inside of the throttle valve 10. Generally speaking, in other embodiments, the throttling type is a throttling channel 320 of small hole throttling or capillary throttling. In the flushing mode, the raw water will flow directly out of the flushing channel 500 with smaller resistance, and will not flow into the throttling channel 320 with larger resistance, which makes the throttling channel 320 unable to be flushed. However, the throttling channel 320 in this embodiment is arranged between two ribs 340, so that the raw water will flow through the throttling channel 320 while flowing through the flushing channel 500, flushing the dirt in the throttling channel 320, which can effectively prevent the throttling channel 320 from being blocked.

[0049] It should be noted that when the throttle valve 10 is in the throttling mode, the diaphragm assembly 400 is affected by the fluid in the high-pressure chamber 111, so that it is pressed toward the throttling member 300. In addition, considering that the throttling channel 320 has an opening toward the diaphragm assembly 400, according to the above-mentioned high-pressure resistance-increasing effect, in order to prevent the diaphragm assembly 400 from excessively deforming toward the throttling channel 320, a support rib 360 is also protrudingly provided on the first end surface 310, and the support rib 360 is located between the two convex ribs 340. The diaphragm assembly 400 is supported by the support rib 360 to prevent the diaphragm assembly 400 from excessively deforming and squeezing the throttling channel 320, thereby preventing the reverse osmosis membrane from having an excessively high pressure in front of the membrane, thereby improving the service life of the reverse osmosis membrane.

[0050] The technical solution of the utility model adopts the method of providing two convex ribs 340 and a sealing rib 350 on the throttling member 300, so that the diaphragm assembly 400 forms a throttling channel 320 when pressing against the two convex ribs 340, and a supporting rib 360 is protrudingly provided between the throttling channels 320 to support the diaphragm assembly 400 and prevent the diaphragm assembly 400 from excessively deforming and squeezing the throttling channel 320, thereby increasing the membrane front pressure of the reverse osmosis membrane and further increasing the service life of the water purification equipment.

[0051] In one embodiment, see Figure 3 , a height of the supporting rib 360 relative to the first end surface 310 is less than or equal to a height of the convex rib 340 relative to the first end surface 310 .

[0052] It should be noted that the height of the support rib 360 should not be set too high, otherwise the support rib 360 will lift up the diaphragm assembly 400, thereby causing the sealing effect around the throttling channel 320 to deteriorate, and further causing the throttling effect of the throttling channel 320 to deteriorate. Therefore, the height of the support rib 360 relative to the first end face 310 can be set equal to the height of the convex rib 340 relative to the first end face 310. At this time, the support rib 360 has the best supporting effect, and the degree of deformation of the diaphragm assembly 400 under pressure into the throttling channel 320 is also the lowest. Secondly, the height of the support rib 360 relative to the first end face 310 can also be less than the height of the convex rib 340 relative to the first end face 310. At this time, the support rib 360 has a good supporting effect. However, the height of the support rib 360 relative to the first end face 310 can only be slightly less than the height of the convex rib 340 relative to the first end face 310, otherwise the height of the support rib 360 relative to the first end face 310 is too small and the support rib 360 cannot play its supporting effect on the diaphragm assembly 400.

[0053] Further, in one embodiment, see Figure 3 The height of the support rib 360 relative to the first end surface 310 is H1, and the height of the convex rib 340 relative to the first end surface 310 is H2, and H1 and H2 satisfy 0≤H2-H1≤15mm.

[0054] According to the above embodiment, the height of the support rib 360 relative to the first end face 310 is less than or equal to the height of the convex rib 340 relative to the first end face 310. Herein, the height of the support rib 360 relative to the first end face 310 is further defined as H1, the height of the convex rib 340 relative to the first end face 310 is H2, and the difference between H2 and H1 is in the range of 0 to 15 mm. Within this range, the support rib 360 can maintain a good supporting effect on the diaphragm assembly 400, prevent the diaphragm assembly 400 from excessively deforming into the throttling channel 320, thereby squeezing the flow area of ​​the throttling channel 320.

[0055] In one embodiment, see Figure 3 The first end surface 310 is also protrudingly provided with a plurality of partition ribs 370 , and the plurality of partition ribs 370 are respectively connected to the outer periphery of the sealing rib 350 , and the plurality of partition ribs 370 are distributed at intervals on the first end surface 310 .

[0056] Specifically, when the diaphragm assembly 400 presses against the convex rib 340 and the sealing rib 350, the adjacent dividing ribs 370 and the diaphragm assembly 400 enclose a balance chamber, which is connected to the high-pressure chamber 111 and is not connected to the low-pressure chamber 112. As a result, the fluid in the balance chamber exerts pressure on the diaphragm assembly 400 to keep it away from the throttling device 300, offsetting part of the pressure of the diaphragm assembly 400 and reducing the water pressure on the diaphragm assembly 400. As a result, the deformation of the diaphragm assembly 400 under pressure toward the throttling channel 320 becomes smaller, thereby weakening the high-pressure resistance-increasing effect and improving the life of the reverse osmosis membrane.

[0057] Optionally, see Figure 3 , a height of the separation rib 370 relative to the first end surface 310 is smaller than a height of the sealing rib 350 relative to the first end surface 310 .

[0058] It should be noted that, according to the previous embodiment, a plurality of partition ribs 370 are spaced and distributed on the periphery of the sealing rib 350. Furthermore, the height of the partition rib 370 relative to the first end face 310 should be less than the height of the sealing rib 350 relative to the first end face 310. In this way, a good sealing effect can be ensured between the sealing rib 350 and the diaphragm assembly 400. Of course, the height of the partition rib 370 relative to the first end face 310 can also be equal to the height of the sealing rib 350 relative to the first end face 310. In addition, considering that the heights of the convex rib 340 and the sealing rib 350 relative to the first end face 310 are substantially the same, the height of the partition rib 370 relative to the first end face 310 should be less than or equal to the height of the convex rib 340 relative to the first end face 310.

[0059] In one embodiment, see Figure 3 A reinforcing platform 341 is provided on one side of the convex rib 340 away from the throttling channel 320 , and the reinforcing platform 341 extends from the middle of the convex rib 340 toward the first end surface 310 .

[0060] It should be noted that a reinforcing platform 341 is provided on the side of the rib 340 away from the throttling channel 320, and the reinforcing platform 341 is used to strengthen the connection strength between the rib 340 and the throttling disk to prevent the rib 340 from being deformed due to a large water pressure.

[0061] In one embodiment, see Figure 3 The height of the convex rib 340 relative to the first end surface 310 is consistent with the height of the sealing rib 350 relative to the first end surface 310 .

[0062] Considering that, in the throttling mode, the throttling channel 320 should have a good sealing effect, the convex rib 340 should abut against the diaphragm assembly 400 to seal the throttling channel 320; in addition, the water outlet channel 330 should also have a good sealing effect, so the sealing rib 350 should abut against the diaphragm assembly 400 to seal the water outlet channel 330. Therefore, the height of the convex rib 340 relative to the first end face 310 is set to be consistent with the height of the sealing rib 350 relative to the first end face 310, which can ensure that both the throttling channel 320 and the water outlet channel 330 are sealed.

[0063] In one embodiment, see Figure 3 The distances between the support rib 360 and the two convex ribs 340 are equal.

[0064] Specifically, in order to make the support rib 360 have a better supporting effect on the throttling channel 320, the support rib 360 is set in the middle of the throttling channel 320, that is, the distance between the support rib 360 and the two convex ribs 340 is equal, so that the throttling channel 320 is divided into two by the support rib 360, and the water flows from the opposite sides of the support rib 360 into the water outlet channel 330.

[0065] In one embodiment, see Figure 5 and Figure 7 The diaphragm assembly 400 includes a diaphragm support 410 and a diaphragm body 420. The diaphragm support 410 is closer to the valve core 210 than the diaphragm body 420. A limiting column 411 is arranged in the middle of the diaphragm body 420, and a limiting groove 411a is arranged on the periphery of the limiting column 411. The diaphragm body 420 is provided with a center hole 421 corresponding to the limiting column 411. The limiting column 411 passes through the center hole 421 and limits the diaphragm body 420 in the limiting groove 411a.

[0066] The diaphragm support 410 is used to support the diaphragm body 420. The diaphragm body 420 is generally made of rubber material, and the diaphragm support 410 is made of plastic material. The diaphragm body 420 is provided with a limiting groove 411a on the limiting column 411. Since the diaphragm body 420 is made of rubber material and has a strong deformation ability, it can first deform and expand to be sleeved on the limiting column 411, move into the limiting groove 411a, and then shrink and return to be limited in the limiting groove 411a. When the valve core 210 is powered on and moved away from the diaphragm assembly 400, the diaphragm assembly 400 will be affected by a large water pressure shock and move away from the throttling member 300.

[0067] In one embodiment, see Figure 7The diaphragm body 420 includes a sealing portion 422, a deformation portion 423 and a pressing portion 424 which are connected in sequence, the pressing portion 424 presses the first end face 310, a sleeve 230 is arranged in the valve core seat 220, the valve core 210 is located in the sleeve 230, the sealing portion 422 is sealedly connected with the sleeve 230 to separate the high-pressure chamber 111 into a first chamber 111a and a second chamber 111b, the diaphragm bracket 410 is provided with a connecting hole 412, the connecting hole 412 is used to connect the first chamber 111a and the second chamber 111b, when the throttle valve 10 is in the flushing mode, the deformation portion 423 is deformed by the water pressure to separate the diaphragm assembly 400 from the first end face 310.

[0068] Specifically, the diaphragm body 420 is integrally formed, wherein the diaphragm body 420 comprises a sealing portion 422, a deformation portion 423 and a pressing portion 424 from its periphery to the center, wherein the sealing portion 422 protrudes from the pressing portion 424, and the sealing portion 422 is used to seal with the sleeve 230 in the valve core seat 220 to fix the relative position of the periphery of the diaphragm body 420, wherein a deformation portion 423 is arranged between the sealing portion 422 and the pressing portion 424, and the deformation portion 423 is arranged in the shape of the letter n, so that when the diaphragm body 420 is subjected to a large water pressure impact, the deformation portion 423 is deformed, so that the diaphragm body 420 is separated from the throttling member 300. Among them, when the drive assembly 200 is not energized, the valve core 210 presses against the diaphragm assembly 400, and then presses the pressing part 424 against the throttling member 300. When the coil assembly is energized, the valve core 210 moves toward the side away from the diaphragm assembly 400, and the diaphragm body 420 is subjected to a large water pressure impact, and its deformation part 423 is deformed by force, so that the pressing part 424 is separated from the throttling member 300, so that a flushing channel 500 is formed between the diaphragm body 420 and the throttling member 300, so that a large flow of raw water can enter the outlet section from the flushing channel 500, and when the raw water passes through the flushing channel 500, it can also pass through the throttling channel 320 to flush the dirt in the throttling channel 320 and prevent the throttling channel from being blocked.

[0069] See also Figure 2It should be noted that the high-pressure chamber 111 is divided into a first chamber 111a and a second chamber 111b, wherein the first chamber 111a is directly connected to the water inlet pipe 600, and the water in the water inlet pipe 600 has a high pressure after being pressurized by the water pump, and the water flow can enter the second chamber 111b through the connecting hole 412, so the water pressure in the second chamber 111b also gradually increases and approaches the pressure in the first chamber 111a, and the high-pressure environment in the second chamber 111b will also make the diaphragm assembly 400 and the throttling member 300 seal and cooperate, so that the side of the throttling channel 320 close to the diaphragm assembly 400 is sealed by the diaphragm body 420, so that the wastewater passing through the throttling channel 320 will not overflow. In this embodiment, the number of connecting holes 412 is set to two, of course, the number of connecting holes 412 can also be set to one, and the number of connecting holes 412 can also be set to multiple, which is not specifically limited here.

[0070] In addition, a mounting column 414 is provided on one side of the diaphragm bracket 410 close to the throttling member 300, and a card groove 414a is provided on the outer periphery of the mounting column 414. The card groove 414a and the limit groove 411a together limit the diaphragm body 420, so that the fixing relationship between the diaphragm body 420 and the bracket is more firmly fixed, and the connecting hole 412 is provided in the mounting column 414.

[0071] In one embodiment, see Figure 1 and Figure 6 A water passage 411b is provided inside the limiting column 411, and a boss 413 is provided on the side of the diaphragm bracket 410 away from the limiting column 411. The boss 413 is provided with a pressure relief port 413a connected to the water passage 411b.

[0072] It should be noted that when the drive assembly 200 is not energized, the valve core 210 presses against the diaphragm assembly 400 and blocks the pressure relief port 413a. When the drive assembly 200 is energized, the valve core 210 moves away from the diaphragm assembly 400 to open the pressure relief port 413a, causing the pressure in the second chamber 111b to drop instantly. The high-pressure environment in the second chamber 111b will instantly impact the diaphragm assembly 400, causing the diaphragm assembly 400 to deform in a direction away from the throttling member 300. It should be noted that the diaphragm bracket 410 is recessed on one side close to the valve core 210. Therefore, in the present embodiment, the pressure relief port 413a is disposed on the boss 413. The boss 413 is disposed here in order to better cooperate with the valve core 210. Of course, the boss 413 may not be disposed, and only the pressure relief port 413a may be provided on the diaphragm bracket 410, wherein the pressure relief port 413a is connected with the water passage 411b, so that when the pressure relief port 413a is opened, the second chamber 111b is connected with the low-pressure chamber 112, so that the pressure in the second chamber 111b is gradually reduced.

[0073] The utility model also proposes a water purification device, which includes a throttle valve 10. The specific structure of the throttle valve 10 refers to the above embodiment. Since the water purification device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0074] The water purification device in the utility model can be a water purifier, a drinking purifier, a soft-purifier all-in-one machine, a purifier-heater all-in-one machine and other devices with water purification function.

[0075] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A throttle valve, characterized in that: include: A valve body, a valve cavity is formed inside the valve body, and a mounting seat is arranged inside the valve body; A driving assembly, comprising a valve core seat and a valve core, wherein the valve core seat is connected to the valve body, and the valve core is located in the valve core seat; A throttling member is arranged in the valve cavity, the throttling member and the mounting seat are sealed to separate the valve cavity into a high-pressure cavity and a low-pressure cavity, a water outlet channel is opened in the middle of the throttling member, the throttling member has a first end face close to the valve core, the first end face is provided with two convex ribs and a sealing rib, a throttling channel connected to the water outlet channel is formed between the two convex ribs, the sealing rib is located at the outer edge of the water outlet channel, a notch is opened on the outer periphery of the sealing rib, and the two convex ribs are respectively connected to the sealing ribs on both sides of the notch; A diaphragm assembly is arranged between the throttling element and the valve core; When the throttle valve is in the throttling mode, the valve core presses the diaphragm assembly against the two convex ribs and the sealing rib; Wherein, the first end surface is protrudingly provided with a support rib, and the support rib is located between the two convex ribs.

2. The throttle valve according to claim 1, characterized in that A height of the supporting rib relative to the first end surface is less than or equal to a height of the convex rib relative to the first end surface.

3. The throttle valve according to claim 2, characterized in that A height of the supporting rib relative to the first end surface is H1, a height of the convex rib relative to the first end surface is H2, and H1 and H2 satisfy 0≤H2-H1≤15mm.

4. The throttle valve according to claim 1, characterized in that The first end surface is also protrudingly provided with a plurality of partition ribs, the plurality of partition ribs are respectively connected to the outer periphery of the sealing rib, and the plurality of partition ribs are distributed at intervals on the first end surface.

5. The throttle valve according to claim 4, characterized in that A height of the separation rib relative to the first end surface is smaller than a height of the sealing rib relative to the first end surface.

6. The throttle valve according to claim 1, characterized in that A reinforcing platform is provided on a side of the convex rib away from the throttling channel, and the reinforcing platform extends from the middle of the convex rib toward the first end surface.

7. The throttle valve according to claim 1, characterized in that A height of the convex rib relative to the first end surface is consistent with a height of the sealing rib relative to the first end surface.

8. The throttle valve according to claim 7, characterized in that The distances between the supporting ribs and the two convex ribs are equal.

9. The throttle valve according to claim 1, characterized in that The diaphragm assembly includes a diaphragm bracket and a diaphragm body. A limiting column is arranged in the middle of the diaphragm bracket. A limiting groove is arranged on the periphery of the limiting column. A center hole is arranged in the diaphragm body. The limiting column passes through the center hole to limit the diaphragm body in the limiting groove.

10. The throttle valve according to claim 9, characterized in that The diaphragm body includes a sealing portion, a deformation portion and a pressing portion which are connected in sequence, the pressing portion presses against the first end face, a sleeve is provided in the valve core seat, the valve core is located in the sleeve, the sealing portion is sealed and connected to the sleeve to separate the high-pressure chamber into a first chamber and a second chamber, the diaphragm bracket is provided with a connecting hole, the connecting hole is used to connect the first chamber and the second chamber, when the throttle valve is in the flushing mode, the deformation portion is deformed by the water pressure to separate the diaphragm assembly from the first end face.

11. The throttle valve according to claim 1, characterized in that The throttling element is integrally formed.

12. A water purification device, characterized in that: Comprising a throttle valve as claimed in any one of claims 1 to 11.

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