Waste water valve

Abstract

The waste water valve comprises a pipeline piece, the pipeline piece comprises a water inlet pipe section, a water outlet pipe section and a flow adjusting pipe section, the interior of the flow adjusting pipe section comprises a first cavity and a second cavity which can be opened and closed and are separated through a partition wall, the first cavity is communicated with the water inlet pipe section, and the second cavity is communicated with the water outlet pipe section; the connecting piece is fixedly connected with the pipeline piece to form a containing cavity; the valve element assembly is arranged in the containing cavity and can abut against or be separated from the partition wall. The connecting piece is arranged on the driving piece in a sleeving mode, the driving piece can rotate relative to the connecting piece, and the driving piece is in transmission connection with the valve element assembly; the driving piece can convert the rotating motion stroke into the linear motion stroke of the valve element assembly under driving force, and the separation distance between the valve element assembly and the partition wall is adjusted and controlled so as to adjust and control the communication amount between the first cavity and the second cavity. The driving piece is in transmission connection with the valve element assembly, the separation distance between the valve element assembly and the partition wall is regulated and controlled, the flow is effectively regulated and controlled, and the blocking risk in the waste water valve is also reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and particularly relates to a waste water valve. Background Art

[0002] At present, the flow rate of waste water solenoid valves on the market is basically constant under the nominal pressure and cannot be adjusted. When the raw water quality is good or poor, it is very difficult to adjust the overall recovery rate of the filtration device; moreover, the inner core of the existing waste water valve is generally a small hole, and the small hole is easily blocked when the raw water quality is poor. Summary of the Invention

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a waste water valve, which can effectively adjust the flow rate of water and reduce the risk of blockage inside the waste water valve.

[0004] A waste water valve provided by the present invention includes:

[0005] A pipe member, including an inlet pipe section, an outlet pipe section, and a flow rate adjustment pipe section disposed between the inlet pipe section and the outlet pipe section. The inside of the flow rate adjustment pipe section includes a first cavity and a second cavity that can be switched on and off. The first cavity is communicated with the inlet pipe section, the second cavity is communicated with the outlet pipe section, and the first cavity and the second cavity are separated by a partition wall;

[0006] A connecting member, which forms a receiving cavity after being fixedly connected to the pipe member;

[0007] A valve core assembly, disposed in the receiving cavity, capable of abutting against or separating from the partition wall;

[0008] A driving member, the connecting member is sleeved on the driving member and the driving member can rotate relative to the connecting member, and the driving member is in transmission connection with the valve core assembly;

[0009] The driving member can convert the rotational movement stroke into a linear movement stroke of the valve core assembly under the driving force, so as to make the valve core assembly abut against the partition wall, or adjust the separation distance between the valve core assembly and the partition wall to adjust the communication amount between the first cavity and the second cavity.

[0010] Further, the valve core assembly includes a valve core body and an elastic seal member, and the elastic seal member is sleeved on one end of the valve core body close to the first cavity and the second cavity.

[0011] Further, the valve core body includes an anti-disengagement structure, and the anti-disengagement structure is clamped with the elastic seal member to limit the position of the elastic seal member relative to the valve core body.

[0012] Further, the anti - detachment structure includes a first limiting section, a clamping section and a second limiting section. After the clamping section connects the first limiting section and the second limiting section, a clamping groove is formed between the first limiting section and the second limiting section.

[0013] The elastic seal includes a clamping portion with a notch. After the elastic seal is assembled with the valve core body, the clamping portion is in sealing cooperation with the clamping groove, and the notch is sleeved outside the clamping section.

[0014] The first limiting section and the second limiting section can limit the position of the elastic seal relative to the valve core body when the valve core assembly moves linearly.

[0015] Further, the valve core body is provided with at least one first guiding portion, and one side of the connecting piece facing the valve core body is provided with at least one second guiding portion. The at least one first guiding portion is in limiting connection with the at least one second guiding portion to limit the movement direction of the valve core assembly.

[0016] Further, at least one convex portion is provided on the outer peripheral surface of the elastic seal, and the convex portion is in interference fit with the inner side surface of the accommodating cavity.

[0017] Further, the driving member is threadedly connected to the valve core assembly, and the driving member and the valve core assembly can rotate relative to each other through the threaded connection to drive the valve core assembly to move linearly.

[0018] Further, the waste water valve further includes a motor fixedly connected to the connecting piece, and the output end of the motor is connected to the driving member, and the output end is used to drive the driving member to rotate synchronously.

[0019] Further, the driving member includes a first threaded section and a limiting connection end driven by the motor. The diameter of the limiting connection end is larger than the diameter of the first threaded section.

[0020] A through - hole is provided inside the connecting piece. The first threaded section passes through the through - hole and is threadedly connected to the second threaded section of the valve core assembly. A limiting boss extending towards the limiting connection end is provided on the side wall of the through - hole, and the limiting boss can abut against the limiting connection end.

[0021] Further, at least one buffer member is provided in the first cavity, and the height of the buffer member in the axial direction of the driving member is less than the height of the partition wall in the axial direction of the driving member.

[0022] Implementing the present invention has the following beneficial effects:

[0023] 1. The driving member of the present invention is drivingly connected to the valve core assembly, capable of converting the rotational movement stroke of the driving member into the linear movement stroke of the valve core assembly, regulating the separation distance between the valve core assembly and the partition wall separating the first cavity and the second cavity, thereby regulating the communication amount between the first cavity and the second cavity, so that the water flow rate flowing through the waste water valve can be effectively regulated; moreover, no small holes are provided in the first cavity and the second cavity inside the waste water valve, which can greatly reduce the risk of blockage inside the waste water valve, extend the service life of the waste water valve, and is beneficial to improving the reliability and operation stability of the waste water valve and the device having the waste water valve.

[0024] 2. The valve core body is clamped with the elastic seal through an anti-detachment structure, which can limit the relative displacement of the elastic seal in the linear movement direction, so that the elastic seal remains relatively stationary with the valve core body during the linear movement, effectively preventing the elastic seal from falling off, and improving the structural reliability of the valve core assembly and the waste water valve.

[0025] 3. The first guiding part and the second guiding part capable of limiting connection are respectively arranged on the valve core body and the connecting part, effectively limiting the linear movement direction of the valve core assembly, avoiding the situation that the overall structure is stuck due to misalignment during the movement of the valve core body, reducing the risk of failure of the flow regulation function of the waste water valve, and greatly improving the operation stability of the waste water valve.

[0026] 4. The buffer can increase the buoyancy of the water flow entering the first cavity through the water inlet section on the elastic seal and the valve core assembly, making the linear movement of the valve core assembly more convenient and labor-saving, which is beneficial to saving the motor power. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the present invention, the drawings used in the embodiments will be briefly introduced below, where the same components are denoted by the same reference numerals. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts.

[0028] Figure 1 It is a cross-sectional view of the internal structure of a waste water valve provided by the present invention;

[0029] Figure 2 It is Figure 1 a cross-sectional view of the waste water valve in the closed state;

[0030] Figure 3 It is Figure 1 a cross-sectional view of the waste water valve in the open state;

[0031] Figure 4 It is a schematic structural diagram of a pipe fitting provided by the present invention;

[0032] Figure 5 is Figure 4 a schematic cross-sectional view of the pipeline component in

[0033] Figure 6 a schematic structural view of a valve core main body provided by the present invention;

[0034] Figure 7 a half-sectional view of an elastic seal provided by the present invention;

[0035] Figure 8 a schematic structural view of a connecting member provided by the present invention;

[0036] Figure 9 is Figure 8 a schematic structural view of the connecting member facing the motor side in

[0037] Figure 10 a schematic structural view of a motor provided by the present invention;

[0038] Figure 11 a schematic structural view of a driving member provided by the present invention.

[0039] Among them, the reference numerals in the figure correspond to: 1 - pipeline component, 11 - water inlet pipe section, 12 - water outlet pipe section, 13 - flow regulating pipe section, 130 - first cavity, 131 - second cavity, 132 - partition wall, 133 - accommodating cavity, 134 - buffer member, 135 - mounting portion, 2 - connecting member, 21 - second guiding portion, 22 - through hole, 23 - limiting boss, 24 - first fixing portion, 25 - second fixing portion, 26 - annular reinforcing rib, 3 - valve core assembly, 31 - valve core main body, 310 - first limiting section, 311 - clamping section, 312 - second limiting section, 313 - clamping groove, 314 - first guiding portion, 315 - second threaded section, 32 - elastic seal, 320 - clamping portion, 321 - notch, 322 - protruding portion, 4 - driving member, 41 - first threaded section, 42 - limiting connection end, 43 - first clamping portion, 5 - motor, 51 - output end, 52 - second clamping portion, 53 - connecting portion. Detailed implementation manners

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention; moreover, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0041] An embodiment of the present invention provides a wastewater valve, as Figure 1-11 shown. The wastewater valve includes a pipe member 1, and the pipe member 1 includes an inlet pipe section 11, an outlet pipe section 12, and a flow regulation pipe section 13 disposed between the inlet pipe section 11 and the outlet pipe section 12. The inside of the flow regulation pipe section 13 includes a first cavity 130 and a second cavity 131 that can be opened and closed. The first cavity 130 is communicated with the inlet pipe section 11, the second cavity 131 is communicated with the outlet pipe section 12, and the first cavity 130 and the second cavity 131 are separated by a partition wall 132.

[0042] As Figure 1 shown, the wastewater valve further includes a connecting member 2, a valve core assembly 3, a driving member 4, and a motor 5. Among them, after the connecting member 2 is fixedly connected to the pipe member 1, a receiving cavity 133 is formed. The valve core assembly 3 is disposed in the receiving cavity 133; the driving member 4 is embedded in the connecting member 2 and can rotate relative to the connecting member 2. The driving member 4 is also in transmission connection with the valve core assembly 3. The motor 5 is drivingly connected to the driving member 4, so that the driving member 4 can convert its rotational movement stroke into a linear movement stroke of the valve core assembly 3 under the driving force, driving the valve core assembly 3 to move in the receiving cavity 133, so that the valve core assembly 3 can abut against or separate from the partition wall 132, thereby regulating the separation distance between the valve core assembly 3 and the partition wall 132 to regulate the communication amount between the first cavity 130 and the second cavity 131, and further regulating the on-off and flow rate between the inlet pipe section 11 and the outlet pipe section 12.

[0043] Among them, in the wastewater valve, the axial direction of the first cavity 130 and the axial direction of the second cavity 131 are parallel to the axial direction of the driving member 4, that is, the axial direction of the flow regulation cavity 13 is parallel to the axial direction of the driving member 4, and the linear movement direction of the valve core assembly 3 is parallel to the axial direction of the driving member 4, that is, the valve core assembly 3 moves linearly along the axial direction of the driving member 4.

[0044] Specifically, the separation distance is greater than or equal to zero; as Figure 2 shown, when the separation distance is zero, the valve core assembly 3 abuts against the partition wall 132, the first cavity 130 is separated from the second cavity 131, and the waste water valve is in the closed state; as Figure 3 shown, when the separation distance is greater than zero, the valve core assembly 3 is separated from the partition wall 132, the first cavity 130 is communicated with the second cavity 131 to form a water flow channel. At this time, the waste water valve is in the open state. In the open state, by regulating the linear movement stroke of the valve core assembly 3, the change amount of the separation distance can be accurately regulated, so as to regulate the communication amount between the first cavity 130 and the second cavity 131, so as to regulate the flow rate of the water flow through the flow rate regulating pipe section 13. The regulation is accurate and effective. Compared with the traditional waste water valve provided with small holes, there are no small holes in the water flow channel formed between the valve core assembly 3 and the flow rate regulating pipe section 13, which can greatly reduce the risk of blockage, extend the service life of the waste water valve, and is also beneficial to improving the operation stability during the use of the waste water valve and the stability of water flow transportation.

[0045] Specifically, as Figure 4 shown, the first cavity 130 and the second cavity 131 are located at one end of the flow rate regulating pipe section 13 away from the connecting member 2 (or the driving member 4). In an alternative embodiment, the first cavity 130 is an annular cavity, and the second cavity 131 is a cylindrical cavity located inside the annular cavity; in another alternative embodiment, the first cavity 130 is a cylindrical cavity, and the second cavity 131 is an annular cavity located outside the cylindrical cavity. The setting method is flexible, the application range is wide, and the assembly tolerance rate can also be improved.

[0046] Specifically, as Figure 5 shown, in the present embodiment, the accommodating cavity 133 is located between one end of the flow rate regulating pipe 13 having the first cavity 130 and the second cavity 131 and the connecting member 2. The height of the partition wall 132 is less than the height of the flow rate regulating pipe section 13 in the axial direction of the driving member 4, leaving enough moving space for the valve core assembly 3, avoiding the situation that the linear movement stroke of the valve core assembly 3 is too small due to the partition wall 132 overly restricting the linear movement stroke of the valve core assembly 3 and unable to be effectively regulated, which is beneficial to improving the regulation effectiveness and also beneficial to expanding the flow rate regulation range.

[0047] Specifically, as Figure 1As shown, the valve core assembly 3 includes a valve core body 31 and an elastic seal 32. The elastic seal 32 is sleeved on one end of the valve core body 31 close to the first cavity 130 and the second cavity 131, so as to form a sealed space among the elastic seal 32, the first cavity 130 and the second cavity 131. On the one hand, it can avoid the situation that the flow rate of the water outlet pipe section 12 is too low due to accidental water leakage, resulting in the failure of the regulation function. On the other hand, it can also prevent the water flow from contacting the driving part 4 and the motor 5 connected to the valve core assembly 3, avoiding corrosion or damage to the driving part 4 and the motor 5. In addition, when the elastic seal 32 moves, it can also apply pressure or suction to the water flow, which is beneficial to press out the large particle residues existing in the water flow along with the water flow from the flow regulating pipe section 13, avoiding the large particle residues remaining in the first cavity 130 and the second cavity 131 and weakening the regulation effectiveness and sensitivity of the waste water valve to the flow rate, and also greatly reducing the risk of blockage of the waste water valve.

[0048] Specifically, the valve core body 31 includes an anti - detachment structure, which is clamped with the elastic seal 32 and used to limit the position of the elastic seal 32 relative to the valve core body 31, avoiding the situation that the elastic seal 32 falls off during the linear movement of the valve core assembly 3, resulting in the failure of regulation.

[0049] Specifically, as Figure 6 shown, the anti - detachment structure includes a first limiting section 310, a clamping section 311 and a second limiting section 312. After the clamping section 311 connects the first limiting section 310 and the second limiting section 312, a clamping groove 313 is formed between the first limiting section 310 and the second limiting section 312, that is, the first limiting section 310 and the second limiting section 312 respectively extend radially outward from the central axis of the valve core body 31. Optionally, in the direction perpendicular to the axial direction of the valve core body 31, the cross - section of the first limiting section 310 includes at least one of a radial shape and a circular shape, and the cross - section of the second limiting section 312 includes at least one of a radial shape and a circular shape.

[0050] In some alternative embodiments, the cross - section of the valve core body 31 with the anti - detachment structure can be in the shape of "tu", that is, the extension length of the first limiting section 310 of the valve core body 31 in the radial direction of the driving part 4 is less than that of the second limiting section 312, or the extension lengths of the first limiting section 310 and the second limiting section 312 of the valve core body 31 in the radial direction of the driving part 4 are equal. The cross - section of the valve core body 31 with the anti - detachment structure can also be in the shape of "shi", that is, the extension length of the first limiting section 310 of the valve core body 31 in the radial direction of the driving part 4 is greater than that of the second limiting section 312. It has good structural stability and can further improve the limiting effectiveness of the elastic seal 32.

[0051] Specifically, as Figure 7As shown in the figure, the elastic seal 32 includes a clamping portion 320 formed with a notch 321. After the elastic seal 32 is assembled with the valve core body 31, the clamping portion 320 is in sealing fit with the clamping groove 313. The notch 321 is sleeved outside the clamping section 311. The cross-section of the elastic seal 32 is generally in the shape of a "mouth" with a notch at the top, so that the elastic seal 32 is integrally sleeved on the clamping section 311 and the second limiting section 312 of the valve core body 31. This enables the bottom of the valve core body 3 to be assembled into the elastic seal 32, and also enables the first limiting section 310 and the second limiting section 312 to effectively limit the position of the elastic seal 32 relative to the valve core body 31 during the linear movement of the valve core assembly 3. When the elastic seal 32 has a tendency to move towards the connecting member 2 relative to the valve core assembly 3, at this time, the valve core assembly 3 is pressed downwards towards the first cavity 130 and the second cavity 131. The side of the first limiting section 310 facing the clamping groove 313 can abut against the side of the clamping portion 320 facing the connecting member 2, thereby assisting in offsetting the friction between the elastic seal 32 and the inner wall of the accommodating cavity 133, enabling the elastic seal 32 to smoothly move towards the first cavity 130 and the second cavity 131, which is beneficial to restricting the extrusion deformation of the elastic seal 32 and extending the service life of the elastic seal 32. When the elastic seal 32 has a tendency to move towards the first cavity 130 and the second cavity 131 relative to the valve core assembly 3, at this time, the valve core assembly 3 is lifted upwards towards the connecting member 2 or the driving member 4. The side of the second limiting section 312 facing the clamping groove 313 can abut against the side of the clamping portion 320 facing the first cavity 130 and the second cavity 131, thereby assisting in offsetting the friction between the elastic seal 32 and the inner wall of the accommodating cavity 133, enabling the elastic seal 32 to remain relatively stationary with respect to the valve core body 31, and avoiding the situation of water leakage at the valve core assembly 3 due to the elastic seal 32 falling off from the valve core body 31. On the one hand, it improves the accuracy of flow regulation, and on the other hand, it also protects the motor 5, avoiding short-circuit damage of the motor 5 caused by water leakage during use, and improving reliability and use safety.

[0052] Specifically, as Figure 1 shown, the connecting member 2 is fixedly connected to the flow regulating pipe section 13. Among them, as Figure 8 shown, at least one first fixing portion 24 is provided on one side of the connecting member 2 facing the flow regulating pipe section 13, as Figure 4As shown in the figure, at least one mounting portion 135 is provided on the flow rate regulating pipe section 13. The mounting portion 135 is fixedly connected to the first fixing portion 24, so as to fixedly connect the connecting member 2 and the flow rate regulating pipe section 13, and the connection is firm and stable. Optionally, the connecting member 2 is provided with a plurality of first fixing portions 24, and the flow rate regulating pipe section 13 is provided with a plurality of mounting portions 135. The distance between two adjacent first fixing portions 24 is equal to the distance between two adjacent mounting portions 135, so that a plurality of first fixing portions 24 and a plurality of mounting portions 135 are connected in a one-to-one correspondence, further improving the connection reliability. Exemplarily, the connecting member 2 is evenly provided with four first fixing portions 24, and the flow rate regulating pipe section 13 is evenly provided with four mounting portions 135. The four first fixing portions 24 and the four mounting portions 135 are respectively fixedly connected, with good fixing uniformity, high reliability and not easy to loosen.

[0053] Specifically, as Figure 6 shown, the valve core main body 31 is provided with at least one first guiding portion 314. As Figure 8 shown, on the side of the connecting member 2 facing the valve core main body 31, at least one second guiding portion 21 is provided. At least one first guiding portion 314 is in limiting connection with at least one second guiding portion 21, and is used for limiting the movement direction of the valve core assembly 3.

[0054] Optionally, the valve core main body 31 is provided with a first guiding portion 314, and the connecting member 2 is provided with a second guiding portion 21. The first guiding portion 314 is in limiting connection with the second guiding portion 21, so that the valve core assembly 3 performs a linear motion along the axial direction of the driving member 4, that is, the linear motion direction of the valve core assembly 3 is parallel or coaxial with the axial direction of the driving member 4. The structure is simple, the processing difficulty of the valve core main body 31 and the connecting member is reduced, and the assembly requirement for the valve core assembly 3 is also low.

[0055] Optionally, the valve core main body 31 is provided with a plurality of first guiding portions 314 and the connecting member 2 is provided with a first guiding portion 21, or the valve core main body 31 is provided with a first guiding portion 314 and the connecting member 2 is provided with a plurality of first guiding portions 21; alternatively, the valve core main body 31 is provided with a plurality of first guiding portions 314 and the connecting member 2 is provided with a plurality of first guiding portions 21, or the valve core main body 31 is provided with a plurality of first guiding portions 314 and the connecting member 2 is provided with a plurality of first guiding portions 21, wherein at least one first guiding portion 314 and at least one second guiding portion 21 can be in limiting connection, so as to effectively guide and limit the linear motion direction of the valve core assembly 3; preferably, a plurality of first guiding portions 314 and a plurality of second guiding portions 21 are in guiding connection in a one-to-one correspondence, with high matching degree, good guiding property and high error tolerance rate.

[0056] Optionally, the number of the plurality of first guiding portions 314 may be 2 to 6. Exemplarily, the plurality of first guiding portions 314 may be set to 2, 3, 4, 5, or 6. Optionally, the number of the plurality of second guiding portions 21 may be 2 to 6. Exemplarily, the second guiding portion 21 may be set to 2, 3, 4, 5, or 6. In this way, not only can the processing difficulty and structural complexity of the valve core body 31 and the connecting member 2 be reduced, but also the guiding reliability can be greatly improved, avoiding damage to some structures and affecting the overall function of the wastewater valve, with a high error tolerance rate, greatly prolonging the service life of the wastewater valve having the valve core body 31 and the connecting member 2, and thus reducing the maintenance and replacement costs.

[0057] In some alternative embodiments, as Figure 2 shown, the first guiding portion 314 is a convex structure, and the first guiding portion 314 protrudes from the first limiting section 310 towards the connecting member 2. The second guiding portion 21 is a guiding groove, or the first guiding portion 314 is a guiding groove, and the second guiding portion 21 is a convex structure, and the convex structure can extend into the guiding groove for sliding, so as to effectively limit the linear movement direction of the valve core body 31. Optionally, the second guiding portion 21 is a hollow convex structure, and the hollow convex structure protrudes from the connecting member 2 towards the flow regulating pipe section 13, so that the second guiding portion 21 forms a hollow guiding groove, and the first guiding portion 314 can extend into the guiding groove to form a sliding connection, or the shapes of the first guiding portion 314 and the second guiding portion 21 are swapped, effectively limiting the linear movement direction of the valve core body 31.

[0058] In some preferred embodiments, the extending end of the second guiding portion 21 is flush with the end face of the connecting member 2 towards the flow regulating pipe section 13, or the extending end of the second guiding portion 21 protrudes from the end face of the connecting member 2 towards the flow regulating pipe section 13, so that the first guiding portion 314 and the second guiding portion 21 are in contact, improving the guiding reliability and enabling the valve core assembly 3 to move linearly more smoothly. In some other preferred embodiments, in the closed state of the wastewater valve, the protruding end of the first guiding portion 314 protrudes from the end face of the flow regulating pipe section 13, improving the guiding reliability.

[0059] Specifically, as Figure 7 shown, at least one protruding portion 322 is provided on the outer peripheral surface of the elastic seal 32, and the protruding portion 322 is in interference fit with the inner side surface of the accommodating cavity 133, so as to further improve the sealing performance of the flow regulating pipe section 13, avoid water leakage, and also isolate the connecting member 2, the driving member 4, and the motor 5 from the water flow, greatly improving the overall effectiveness and use safety of the wastewater valve.

[0060] In some alternative embodiments, the elastic seal 32 is provided with a protrusion 322; in some other alternative embodiments, the elastic seal 32 is provided with a plurality of protrusions 322, which on the one hand improves the sealing performance between the valve core assembly 3 and the flow regulating pipe section 13, and on the other hand avoids excessive frictional force between the elastic seal 32 and the inner wall of the flow regulating pipe section 13, resulting in inconvenient movement or even wear of the valve core assembly 3, avoiding increasing the load on the motor 5, and also prolonging the service life of the valve core assembly 3.

[0061] In some embodiments, as Figure 7 shown, the protrusion 322 is an annular protrusion, and the outer peripheral surface of the elastic seal 32 is provided with a plurality of annular protrusions uniformly distributed along the axial direction of the driving member 4, greatly improving the sealing uniformity and reliability; in some other alternative embodiments, the inner side surface of the accommodation cavity 133 is provided with concave and convex grooves, which are correspondingly arranged with the protrusions 322, facilitating the positioning and installation of the elastic seal 32 and the valve core assembly 3, and also being beneficial to improving the sealing performance during the linear movement of the valve core assembly 3.

[0062] Specifically, as Figure 1 shown, the driving member 4 is threadedly connected to the valve core assembly 3, and the driving member 4 and the valve core assembly 3 can rotate relative to each other through the threaded connection method to drive the valve core assembly 3 to perform linear motion. The driving structure is simple, the driving path is short, the driving efficiency is high, and moreover, when the driving member 4 rotates to drive the valve core assembly 3 to perform linear motion, it can improve the continuity of the regulation of the moving stroke of the valve core assembly 3, thereby improving the continuity of the flow rate change during the flow rate regulation process. The flow rate regulation accuracy is high, and it can be applied to the continuous regulation of a variety of different required flow rates, greatly improving the regulation sensitivity.

[0063] Specifically, as Figure 1 shown, the motor 5 is fixedly connected to the connecting member 2. Among them, as Figure 9 shown, at least one second fixing portion 25 is provided on the side of the connecting member 2 facing away from the flow regulating pipe section 13. As Figure 10 shown, at least one connecting portion 53 is provided on the motor 5, and the connecting portion 53 is fixedly connected to the second fixing portion 25 to fixedly connect the connecting member 2 and the motor 5, and the connection is firm and stable; optionally, the connecting member 2 is provided with a plurality of second fixing portions 25, the motor 5 is provided with a plurality of connecting portions 53, and the distance between two adjacent second fixing portions 25 is equal to the distance between two adjacent connecting portions 53, so that the plurality of second fixing portions 25 are connected to the plurality of connecting portions 53 in one-to-one correspondence, further improving the connection reliability; exemplarily, the connecting member 2 is evenly provided with four second fixing portions 25, the motor 5 is evenly provided with four connecting portions 53, and the four second fixing portions 25 are respectively fixedly connected to the four connecting portions 53, with good fixing uniformity and high reliability, and are not easily loosened.

[0064] In addition, between the first fixing portion 24 and the mounting portion 135, and between the second fixing portion 25 and the connecting portion 53, bolt connection or pin connection can be selected. The connection method is simple and convenient, the fixation is reliable, and the applicability is good.

[0065] In some alternative embodiments, annular reinforcing ribs 26 are provided between adjacent first fixing portions 24; in some other alternative embodiments, annular reinforcing ribs 26 are provided between adjacent second fixing portions 25; in this way, the structural strength of the first fixing portion 24, the second fixing portion 25 and the connecting member 2 is improved, the structural strength of the wastewater valve is improved, and the service life of the connecting member 2 and the wastewater valve is prolonged.

[0066] Specifically, as Figure 1 shown, the output end 51 of the motor 5 is connected to the driving member 4, and the output end 51 is used to drive the driving member 4 to rotate synchronously; wherein, the driving member 4 is provided with a first clamping portion 43, and the output end 51 is provided with a second clamping portion 52. The first clamping portion 43 and the second clamping portion 52 are clamped with each other to generate a transmission effect, so that the driving member 4 can rotate synchronously with the output end 51; in some alternative embodiments, as Figure 10 shown in Figure 11 shown, the first clamping portion 43 is a boss structure and the second clamping portion 52 is a groove structure, or the first clamping portion 43 is a groove structure and the second clamping portion 52 is a boss structure. Optionally, the driving member 4 is provided with a groove body drivingly connected to the output end 51, and the boss structure of the second clamping portion 52 is arranged in the groove body, so that after the output end 51 is inserted into the groove body, the first clamping portion 51 can be correspondingly clamped with the boss structure to generate a transmission effect, improving the clamping reliability between the first clamping portion 43 and the second clamping portion 52, and also improving the reliability and stability of the rotation of the driving member 4, thereby improving the reliability and stability of the linear motion of the valve core assembly 3 and the flow rate regulation of the wastewater valve.

[0067] Specifically, as Figure 11 shown, the driving member 4 includes a first threaded section 41 and a limit connection end 42 drivingly connected to the motor 5; as Figure 9 shown, the connecting member 2 is internally provided with a through hole 22, and the first threaded section 41 passes through the through hole 22 and is threadedly connected to the second threaded section 315 of the valve core assembly 3. Wherein, the diameter of the limit connection end 42 is greater than the diameter of the first threaded section 41, and the diameter of the first threaded section 41 is less than the inner diameter of the through hole 22, and the diameter of the limit connection end 42 is greater than the inner diameter of the through hole 22, so that the first threaded section 41 can smoothly pass through the through hole 22, and at the same time, the driving member 4 is prevented from falling out of the through hole 22 as a whole, improving the assembly reliability of the driving member 4.

[0068] Optionally, the first threaded section 41 is an internal thread structure, and the second threaded section 315 is an external thread structure; alternatively, the first threaded section 41 is an external thread structure, and the second threaded section 315 is an internal thread structure, with flexible connection, diverse setting methods, and stable and reliable transmission.

[0069] Specifically, the first clamping portion 43 is arranged at the limit connection end 42, so that the limit connection end 42 is reliably clamped with the output end 51 of the motor 5 to achieve effective transmission; a limit boss 23 extending towards the limit connection end 42 is provided on the side wall of the through hole 22, and the limit boss 23 can abut against the limit connection end 42, which can effectively limit the position of the driving member 4. The limit boss 23 greatly reduces the contact area between the driving member 4 and the internal structure of the connecting member 2, can greatly weaken the rotational resistance during the rotation of the driving member 4, and improve the driving efficiency; in some alternative embodiments, the limit boss 23 is at least one of an annular boss, an arc-shaped boss, and a plurality of dot-shaped bosses.

[0070] Specifically, the number of rotation turns of the motor 5 is proportional to the flow rate change in the water inlet pipe section 11 and the water outlet pipe section 12. In some embodiments, during the process of switching the waste water valve from the closed state to the open state, for each rotation of the motor 5, the flow rate in the flow rate adjustment pipe section 13 increases by a preset flow rate. When the motor 5 rotates in one direction by the maximum number of rotation turns, the flow rate in the flow rate adjustment pipe section 13 increases to the maximum flow rate, and the maximum flow rate is the product of the preset flow rate and the maximum number of rotation turns; conversely, during the process of switching the waste water valve from the maximum flow rate state to the closed state, the motor 5 rotates in the reverse direction. For each rotation of the motor 5, the flow rate in the flow rate adjustment pipe section 13 decreases by the preset flow rate until the flow rate in the flow rate adjustment pipe section 13 is zero when the motor 5 rotates in the reverse direction by the maximum number of rotation turns, and the waste water valve is completely closed.

[0071] In some alternative embodiments, the maximum number of rotation turns of the motor 5 is 4 - 10 turns; it can be understood that the maximum number of rotation turns is any integer within 4 - 10 turns. Exemplarily, the maximum number of rotation turns can be 4 turns, 5 turns, 6 turns, 8 turns, 10 turns, etc.; within this range of the maximum number of rotation turns, the load of the motor 5 is small, and the regulation is simple and convenient, with good regulation efficiency and accuracy.

[0072] In some embodiments, the preset flow rate corresponding to each rotation of the motor 5 increasing or decreasing is 100 - 500 mL / min; it can be understood that the preset flow rate can be any point value within 100 - 500 mL / min. For example, 100 mL / min, 300 mL / min, 500 mL / min, etc., which is beneficial to improving the accuracy of flow rate control; however, the present invention does not make specific limitations on this, and the preset flow rate can also be selected as other values to meet the requirements of the actual pipeline flow rate.

[0073] Specifically, as Figure 4As shown, at least one buffer member 134 is provided in the first cavity 130. The height of the buffer member 134 in the axial direction of the driving member 4 is less than the height of the partition wall 132 in the axial direction of the driving member 4, and the first cavity 130 is not completely separated. The buffer member 134 can play a role in buffering and blocking the water flow, increasing the buoyancy of the elastic seal 32 when the water flow enters the first cavity 130, making the valve core assembly 3 easier to drive, which is beneficial to saving the power of the motor 5 and energy consumption, and also helps to prevent the accidental detachment of the elastic seal 32, improving the structural reliability and movement stability of the valve core assembly 3 and the whole wastewater valve.

[0074] Optionally, one buffer member 134 is provided in the first cavity 130, with a simple structure; preferably, two buffer members 134 are provided in the first cavity 130. The two buffer members 134 are symmetric about the axial direction of the water inlet pipe section 11, that is, the two buffer members 134 are respectively located on both sides of the water inlet pipe section 11, so that the water flow can be evenly blocked after entering the first cavity 130, improving the uniformity of the buoyancy of the water flow on the elastic seal 32 and the valve core assembly 3, and avoiding the deformation or even detachment of the elastic seal 32 from the valve core body 31 due to different frictions of the inner wall of the receiving cavity 133 at various places during the linear movement, greatly improving the stability of the overall structure.

[0075] The embodiment of the present invention also provides a filtering device, including the above-mentioned wastewater valve. The rotational movement of the driving member 4 in the wastewater valve drives the valve core assembly 3 to perform a linear movement relative to the pipeline member 1. By changing the linear movement stroke of the valve core assembly, the flow rate of the wastewater can be effectively adjusted, and the recovery rate regulation of the filtering device can be realized, with effective and reliable regulation and good operation stability.

[0076] The following introduces the specific embodiments of the present invention based on the above technical solutions.

[0077] Embodiment 1

[0078] This embodiment provides a wastewater valve, including a pipeline member 1, a connecting member 2, a valve core assembly 3, a driving member 4 and a motor 5. Among them, as Figure 1As shown in the figure, the pipe fitting 1 includes a water inlet pipe section 11, a flow regulating pipe section 13, and a water outlet pipe section 12 that are connected in sequence. Among them, a water flow direction indicator is provided at the bottom of the flow regulating pipe section 13 to facilitate the operator to identify the water flow direction. The flow regulating pipe section 13 includes a first cavity 130 and a second cavity 131 that can be connected in a switched-on or off manner. The first cavity 130 is communicated with the water inlet pipe section 11, and the second cavity 131 is communicated with the water outlet pipe section 12. The first cavity 130 and the second cavity 131 are separated by a partition wall 132; after the connecting piece 2 is fixedly connected to the flow regulating pipe section 13, a receiving cavity 133 is formed. The valve core assembly 3 is arranged in the receiving cavity 133; the driving member 4 is inserted into the connecting piece 2 and can rotate relative to the connecting piece 2. The motor 5 is drivingly connected to the driving member 4, and the driving member 4 is also drivingly connected to the valve core assembly 3, so that the driving member 4 can convert its rotational movement stroke into a linear movement stroke of the valve core assembly 3 under the driving force, driving the valve core assembly 3 to move in the receiving cavity 133, enabling the valve core assembly 3 to abut against or separate from the partition wall 132, thereby regulating the communication amount between the first cavity 130 and the second cavity 131 by controlling the separation distance between the valve core assembly 3 and the partition wall 132, and further regulating the on-off and flow rate between the water inlet pipe section 11 and the water outlet pipe section 12.

[0079] Specifically, the first cavity 130, the second cavity 131, and the partition wall 132 are located at the bottom of the flow regulating pipe section 13. The receiving cavity 133 is located above the first cavity 130 and the second cavity 131, and the height of the partition wall 132 is less than the total height of the flow regulating pipe section 13, so as to reserve enough movement space for the valve core assembly 3 installed in the receiving cavity 133 to achieve flow regulation.

[0080] Specifically, as Figure 1 shown, the valve core assembly 3 includes a valve core body 31 and an elastic seal 32. The valve core body 31 includes an anti-detachment structure, and the anti-detachment structure is clamped with the elastic seal 32 to limit the position of the elastic seal 32 relative to the valve core body 31 and prevent the elastic seal 32 from falling off.

[0081] Specifically, as Figure 6 shown, the anti-detachment structure includes a first limiting section 310, a clamping section 311, and a second limiting section 312. The clamping section 311 connects the first limiting section 310 and the second limiting section 312 to form a clamping groove 313 between the first limiting section 310 and the second limiting section 312; as Figure 7As shown, the elastic seal 32 includes a clamping portion 320 formed with a notch 321. After the elastic seal 32 is assembled with the valve core body 31, the clamping portion 320 is in sealing fit with the clamping groove 313, and the notch 321 is sleeved outside the clamping section 311, so that the elastic seal 32 is integrally sleeved on the clamping section 311 and the second limiting section 312 of the valve core body 31, enabling the first limiting section 310 and the second limiting section 312 to limit the position of the elastic seal 32 relative to the valve core body 31 when the valve core assembly 3 moves linearly, thereby improving the sealing performance and use safety.

[0082] Specifically, as Figure 8 shown, on one side of the connecting piece 2 facing the valve core body 31, there are four first fixing portions 24 evenly distributed along the circumferential direction of the driving member 4. The flow regulating pipe section 13 is provided with four mounting portions 135 evenly distributed along the circumferential direction of the driving member 4. The first fixing portions 24 are connected to the mounting portions 135 in one-to-one correspondence, making the connection between the connecting piece 2 and the flow regulating pipe section 13 firm.

[0083] Specifically, as Figure 6 and Figure 8 shown, on the first limiting section 131 of the valve core body 31, there are four first guiding portions 314 protruding towards the connecting piece 2. On the connecting piece 2, there are four second guiding portions 21 evenly distributed. The second guiding portions 21 extend towards the flow regulating pipe section 13, and the middle of the second guiding portion is a hollow guiding groove. Then the first guiding portions 314 can extend into the corresponding guiding grooves one by one, effectively restricting the linear movement direction of the valve core body 31.

[0084] Specifically, as Figure 7 shown, the outer peripheral surface of the elastic seal 32 is provided with three annular protruding portions 322. The protruding portions 322 are in interference fit with the inner side surface of the accommodating cavity 133 to improve the sealing performance of the flow regulating pipe section 13 and also improve the use safety of the entire wastewater valve.

[0085] Specifically, as Figure 1 shown, the driving member 4 is threadedly connected to the valve core assembly 3. The driving member 4 and the valve core assembly 3 can rotate relative to each other through the threaded connection method to drive the valve core assembly 3 to move linearly; as Figure 11 shown, the driving member 4 includes a first threaded section 41 provided with an external thread structure, and the valve core assembly 3 includes a second threaded section 315 provided with an internal thread structure. The first threaded section 41 is threadedly connected to the second threaded section 315, thereby effectively driving the valve core body 31 and the entire valve core assembly 3 to move linearly and improving the reliability of the flow regulation of the wastewater valve.

[0086] Specifically, the motor 5 is fixedly connected to the connecting piece 2. As Figure 9 shown, on the side of the connecting piece 2 facing away from the flow regulating pipe section 13, there are four second fixing portions 25 evenly distributed.Figure 10 As shown, the motor 5 includes four evenly distributed connection parts 53, and the connection parts 53 are fixedly connected with the second fixing parts 25 in a one-to-one correspondence, so as to fix the connection between the connecting member 2 and the motor 5, and the connection is firm and stable.

[0087] Specifically, Figure 10 and Figure 11 As shown, the motor 5 adopts 24V direct current and has a wide range of applications; the output end 51 of the motor 5 is connected to the driving member 4, and the output end 51 is used to drive the driving member 4 to rotate synchronously; wherein the driving member 4 is provided with a first clamping portion 43, which is a boss structure, and the output end 51 is provided with a second clamping portion 52, which is a groove structure, and the first clamping portion 43 and the second clamping portion 52 are mutually clamped to produce a transmission effect, so that the driving member 4 can rotate synchronously with the output end 51, and the driving reliability is high.

[0088] Specifically, Figure 11 As shown, the driving member 4 includes a first threaded section 41 and a limiting connection end 42 which is drivingly connected to the motor 5; Figure 9 As shown, a through hole 22 is provided inside the connecting member 2, and the first thread segment 41 passes through the through hole 22 and is threadedly connected to the second thread segment 315 of the valve core assembly 3, wherein the diameter of the limiting connection end 42 is larger than the diameter of the first thread segment 41, and the diameter of the first thread segment 41 is smaller than the inner diameter of the through hole 22, and the diameter of the limiting connection end 42 is larger than the inner diameter of the through hole 22, so that the first thread segment 41 can smoothly pass through the through hole 22, and at the same time prevent the driving member 4 from falling from the through hole 22 as a whole, thereby improving the assembly reliability of the driving member 4.

[0089] Specifically, Figure 9 As shown, a limiting boss 23 extending toward the limiting connection end 42 is provided on the side wall of the through hole 22, and the limiting boss 23 can abut against the limiting connection end 42. The limiting boss 23 greatly reduces the contact area between the driving member 4 and the connecting member 2, and can greatly reduce the rotational resistance of the driving member 4 during rotation.

[0090] Specifically, Figure 4 As shown, two buffer members 134 are provided in the first cavity 130 , and the two buffer members 134 are symmetrical about the axial direction of the water inlet pipe section 11 , so as to increase the buoyancy of the water flow on the elastic sealing member 32 and the valve core assembly 3 .

[0091] During regulation, the motor 5 is powered on, and a preset flow rate flowing through the wastewater valve is determined according to the inlet water pressure, which is the flow rate that the wastewater valve can adjust per revolution of the motor 5 under the condition of this inlet water pressure. According to the target flow rate of the filtering device, the rotation direction and the number of rotation circles of the motor 5 are controlled; in this embodiment, the maximum number of rotation circles of the motor 5 in a single direction is 6 circles. When the flow rate does not reach the target flow rate, for example, the preset flow rate is 300 ml / min when the inlet water pressure is 0.55 Mpa, and the target flow rate is 600 ml / min, then the motor 5 is controlled to rotate right, and the driving member 4 is driven to rotate synchronously for two circles through the output end 51, and the driving force is transmitted to the second threaded section 315 of the valve core assembly 3, driving the whole valve core assembly 3 to move upward, that is, increasing the separation distance between the valve core assembly 3 and the partition wall 133, increasing the communication amount between the first cavity 130 and the second cavity 131, thereby increasing the real-time flow rate flowing through the wastewater valve. When the real-time flow rate is close to the target flow rate, the motor 5 stops; on the contrary, if the target flow rate is less than the real-time flow rate, the motor 5 is controlled to rotate left until the motor 5 is shut down when the real-time flow rate is close to the target flow rate. The adjustment is simple and convenient, and the accuracy is good.

[0092] Embodiment 2

[0093] The difference between this embodiment and Embodiment 1 is that three annular concave and convex grooves are provided on the inner wall of the accommodating cavity 133, and each concave and convex groove is correspondingly arranged with an annular protrusion 322, which is convenient for the positioning and installation of the elastic seal 32 and the valve core assembly 3, and also improves the sealing performance during the linear movement of the valve core assembly 3; the rest is the same as Embodiment 1.

[0094] The above description only shows some embodiments of the present invention and is not used to limit the present invention. Those skilled in the art should understand that the present invention will have various changes and improvements. Any modifications, equivalent replacements, and improvements made in accordance with the present invention fall within the scope of protection required by the present invention.

Claims

1. A wastewater valve, characterized in that, include: A pipe member (1), comprising an inlet pipe section (11), an outlet pipe section (12), and a flow regulating pipe section (13) disposed between the inlet pipe section (11) and the outlet pipe section (12); the flow regulating pipe section (13) comprises a first cavity (130) and a second cavity (131) which can be switched on and off; the first cavity (130) is communicated with the inlet pipe section (11), the second cavity (131) is communicated with the outlet pipe section (12), and the first cavity (130) and the second cavity (131) are separated by a partition wall (132); A connecting member (2) is fixedly connected to the pipeline member (1) to form a receiving cavity (133); A valve core assembly (3) is disposed in the accommodating cavity (133) and is capable of abutting against or separating from the partition wall (132); A driving member (4), the connecting member (2) is sleeved on the driving member (4) and the driving member (4) is rotatable relative to the connecting member (2), and the driving member (4) is drivingly connected to the valve core assembly (3); The driving member (4) is capable of converting the rotational motion stroke into the linear motion stroke of the valve core assembly (3) under the driving force, thereby making the valve core assembly (3) abut against the partition wall (132), or adjusting the separation distance between the valve core assembly (3) and the partition wall (132) to adjust the communication volume between the first cavity (130) and the second cavity (131).

2. The wastewater valve according to claim 1, characterized in that The valve core assembly (3) comprises a valve core body (31) and an elastic sealing member (32), wherein the elastic sealing member (32) is sleeved on one end of the valve core body (31) close to the first cavity (130) and the second cavity (131).

3. The wastewater valve according to claim 2, characterized in that, The valve core body (31) comprises an anti-slip structure, and the anti-slip structure is engaged with the elastic sealing member (32) and is used to limit the position of the elastic sealing member (32) relative to the valve core body (31).

4. The wastewater valve according to claim 3, wherein The anti-drop structure comprises a first limiting section (310), a clamping section (311) and a second limiting section (312); the clamping section (311) connects the first limiting section (310) and the second limiting section (312) to form a clamping groove (313) between the first limiting section (310) and the second limiting section (312); The elastic sealing member (32) comprises a clamping portion (320) formed with a notch (321); after the elastic sealing member (32) and the valve core body (31) are assembled, the clamping portion (320) and the clamping groove (313) are sealed and matched; the notch (321) is sleeved on the outside of the clamping section (311); The first limiting section (310) and the second limiting section (312) are capable of limiting the position of the elastic sealing component (32) relative to the valve core body (31) when the valve core assembly (3) moves linearly.

5. The wastewater valve according to claim 2, characterized in that, The valve core body (31) is provided with at least one first guiding portion (314), and at least one second guiding portion (21) is provided on one side of the connecting member (2) facing the valve core body (31). The at least one first guiding portion (314) is in limiting connection with the at least one second guiding portion (21) to limit the movement direction of the valve core assembly (3).

6. The wastewater valve according to claim 2, characterized in that, At least one convex portion (322) is provided on the outer peripheral surface of the elastic seal (32), and the convex portion (322) is in interference fit with the inner side surface of the accommodating cavity (133).

7. The wastewater valve according to any one of claims 1 to 6, characterized in that, The driving member (4) is in threaded connection with the valve core assembly (3), and the driving member (4) and the valve core assembly (3) can rotate relative to each other through the threaded connection to drive the valve core assembly (3) to perform linear motion.

8. The wastewater valve according to any one of claims 1-6, characterized in that, The waste water valve further includes a motor (5) fixedly connected to the connecting member (2). The output end (51) of the motor (5) is connected to the driving member (4), and the output end (51) is used to drive the driving member (4) to rotate synchronously.

9. The wastewater valve according to any one of claims 1-6, characterized in that, The driving member (4) includes a first threaded section (41) and a limiting connection end (42) drivingly connected to the motor (5), and the diameter of the limiting connection end (42) is greater than the diameter of the first threaded section (41). A through hole (22) is provided inside the connecting member (2). The first threaded section (41) passes through the through hole (22) and is in threaded connection with the second threaded section (315) of the valve core assembly (3). A limiting boss (23) extending towards the limiting connection end (42) is provided on the side wall of the through hole (22), and the limiting boss (23) can abut against the limiting connection end (42).

10. The wastewater valve according to any one of claims 1-6, characterized in that, At least one buffer member (134) is provided in the first cavity (130), and the height of the buffer member (134) in the axial direction of the driving member (4) is less than the height of the partition wall (132) in the axial direction of the driving member (4).

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