Drain valve

Abstract

The drainage valve comprises a valve body, a diaphragm and an iron core assembly, a water inlet connecting pipe, a partition and a water outlet connecting pipe are formed on the valve body, a valve port is formed in the partition, and the water inlet connecting pipe can communicate with the water outlet connecting pipe through the valve port; the diaphragm is mounted on the valve body and is provided with a sealing convex part; the iron core assembly is mounted on the valve body and is in transmission connection with the sealing convex part, so that the opening / closing of the valve port is controlled under the driving of the iron core assembly; and one end surface, facing the iron core assembly, of the baffle is configured to be a plane. When the drain valve controls sewage discharge, foreign matters in sewage can be prevented from being detained on the baffle, so that normal work of the drain valve can be ensured, and the drain valve can be suitable for being used in sewage occasions with foreign matters.

Description

Technical Field

[0001] The utility model belongs to the technical field related to flow valves, and particularly relates to a drainage valve. Background Art

[0002] At present, the edge of the valve port in the existing drain valve is convex compared to the surrounding area. When the drain valve is used in sewage with foreign objects such as impurities and wool, the convex part of the drain valve at the valve port is easy to cause foreign objects passing through the valve port to get stuck, thereby affecting the normal opening / closing of the valve port and causing the drain valve to fail. Utility Model Content

[0003] In view of this, it is necessary to provide a drain valve for solving the above technical problems.

[0004] A drain valve, the drain valve comprising:

[0005] The valve body is formed with a water inlet pipe, a baffle and a water outlet pipe, the baffle is provided with a valve port, and the water inlet pipe can be connected with the water outlet pipe through the valve port;

[0006] A diaphragm is mounted on the valve body, and the diaphragm has a sealing convex portion;

[0007] An iron core assembly is mounted on the valve body and is drivingly connected to the sealing protrusion to control the on / off state of the valve port under the drive of the iron core assembly;

[0008] Wherein, one end surface of the baffle facing the core assembly is configured as a plane.

[0009] It can be understood that the end surface of the partition with a valve opening facing the core assembly is configured as a plane. By utilizing the structural characteristics of the plane, the drain valve can prevent foreign matter in the sewage from being retained on the partition when controlling the discharge of sewage. This can ensure the normal operation of the drain valve, that is, the drain valve can be suitable for use in sewage situations with foreign matter.

[0010] In one of the embodiments, an end surface of the sealing protrusion away from the core assembly is configured as an arc surface, and the sealing protrusion can abut against the plane through the arc surface to seal the valve port.

[0011] It can be understood that the sealing convex portion blocks the valve port by abutting between the arc surface and the plane, which can ensure the sealing performance of the diaphragm when blocking the valve port during operation and ensure the normal operation of the drain valve.

[0012] In one embodiment, the core assembly includes a movable core, and the movable core is partially inserted into the sealing protrusion and connected to the sealing protrusion;

[0013] Wherein, the drain valve further comprises a cushion cup, which is sleeved on the sealing protrusion and abuts against the movable iron core.

[0014] It can be understood that when the movable iron core drives the sealing protrusion to seal the valve port, the movable iron core can also use the gasket cup to push the sealing protrusion, which can facilitate the driving of the movable iron core to seal the valve port and improve the stability of the valve port seal when the sealing protrusion seals the valve port.

[0015] In one of the embodiments, a position interference portion is provided between the spacer cup and the sealing protrusion on the moving path of the movable iron core, and the spacer cup is configured to push the sealing protrusion against the plane in response to the squeezing of the position interference portion.

[0016] In one embodiment, the drain valve further comprises a pressing plate, and the pressing plate is used to press the diaphragm tightly and limit it to the valve body;

[0017] The pressing plate is provided with a vent hole, and the chamber formed by the pressing plate and the diaphragm can be ventilated with the external environment through the vent hole.

[0018] It is understandable that the vent holes on the pressure plate are used to achieve air exchange between the chamber formed by the pressure plate and the diaphragm and the external environment, which can reduce the air resistance encountered when the movable iron core drives the sealing protrusion to seal the valve port.

[0019] In one embodiment, the core assembly includes a movable core, which is telescopically mounted on the pressure plate and is drivingly connected to the sealing protrusion;

[0020] Wherein, a plurality of convex ribs are formed on the pressure plate, and the plurality of convex ribs are arranged at intervals along the circumferential direction of the movable iron core and are respectively slidably matched with the movable iron core.

[0021] It can be understood that by utilizing the sliding fit between multiple ribs and the movable iron core, the pressure plate can, on the one hand, guide the movement of the movable iron core, and on the other hand, can use the gap between two adjacent ribs to exchange air with the external environment, ensuring that the air in the chamber does not hinder the movement of the movable iron core.

[0022] In one embodiment, the pressure plate is disposed inside the valve body;

[0023] Wherein, the drain valve further comprises a magnetic conductive plate, which covers the valve body and is connected to the valve body, and is used to limit the pressure plate assembled in the valve body.

[0024] In one embodiment, an extended protrusion is formed on the pressing plate, and the extended protrusion is connected to the vent hole;

[0025] Wherein, the extending protrusion can be plug-fitted with the valve body.

[0026] It can be understood that, through the structural setting of the above-mentioned extended protrusion, on the one hand, it can play a fool-proof role when the pressure plate is assembled on the valve body, and on the other hand, it can play a guiding role for the exchanged air.

[0027] In one embodiment, the core assembly includes a fixed core, a movable core and an elastic member, and the elastic member is assembled between the fixed core and the movable core in a pre-compression manner;

[0028] Wherein, a magnetic separation ring is embedded on one end of the fixed iron core facing the movable iron core.

[0029] It can be understood that, by embedding the magnetic ring on the fixed iron core, the drain valve can be directly applicable to AC power occasions and the operation of the drain valve is noiseless.

[0030] In one of the embodiments, an end surface of the fixed iron core facing the movable iron core is set as a ferromagnetic surface;

[0031] The area of ​​the ferromagnetic surface located on the inner side of the magnetic separation ring is equal to the area of ​​the ferromagnetic surface located on the outer side of the magnetic separation ring.

[0032] It can be understood that, through the above-mentioned structural arrangement, the magnetic quantity that can be generated by the magnetic separation ring can be further increased, thereby ensuring that the drain valve does not generate noise when working under alternating current.

[0033] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0034] The drain valve for which protection is sought in the present application configures one end surface of the partition with a valve opening facing the core assembly as a plane, and utilizes the structural characteristics of the plane to prevent foreign matter in the sewage from being retained on the partition when controlling the discharge of sewage, thereby ensuring the normal operation of the drain valve, that is, the drain valve can be suitable for use in situations where sewage contains foreign matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A schematic diagram of the structure of a drain valve provided in one embodiment of the present application.

[0037] Figure 2 A cross-sectional view of a drain valve provided in accordance with an embodiment of the present application.

[0038] Figure 3 It is a structural schematic diagram of the valve body in this application.

[0039] Figure 4 It is a schematic diagram of the structure of the pressure plate in this application.

[0040] : 100, drain valve; 10, valve body; 11, water inlet pipe; 12, baffle; 121, plane; 13, water outlet pipe; 20, diaphragm; 21, sealing convex part; 211, arc surface; 30, core assembly; 31, fixed core; 311, ferromagnetic surface; 32, movable core; 33, elastic part; 34, magnetic ring; 40, coil assembly; 50, pad cup; 501, position interference part; 60, pressure plate; 61, vent hole; 62, extension convex part; 63, convex rib; 64, slot; 70, magnetic plate; 71, screw; 80, magnetizer; 90, spring; 101, valve mouth; 102, chamber. DETAILED DESCRIPTION

[0041] 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.

[0042] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] like Figures 1 to 3 As shown, a drain valve 100 provided in an embodiment of the present application includes a valve body 10, a diaphragm 20 and a core assembly 30. A water inlet pipe 11, a baffle 12 and a water outlet pipe 13 are formed on the valve body 10. A valve port 101 is provided on the baffle 12, and the water inlet pipe 11 can be connected to the water outlet pipe 13 through the valve port 101; the diaphragm 20 is installed on the valve body 10, and the diaphragm 20 has a sealing protrusion 21; the core assembly 30 is installed on the valve body 10 and is transmission-connected with the sealing protrusion 21 to control the on / off of the valve port 101 under the drive of the core assembly 30; wherein, an end surface of the baffle 12 facing the core assembly 30 is configured as a plane 121. That is to say, the drain valve 100 of the present application has a plane 121 at the edge of the valve port 101, which is not convex, so that when the drain valve 100 controls the discharge of sewage, it can prevent foreign matter in the sewage from being retained on the baffle 12, which can ensure the normal operation of the drain valve 100, that is, the drain valve 100 can be used in sewage occasions with foreign matter. Here, the water inlet pipe 11, the baffle 12 and the water outlet pipe 13 are connected as a whole, and can be specifically prepared as a whole by injection molding. It should be noted that the end face of the baffle 12 away from the core assembly 30 is also configured as a planar structure.

[0045] like Figure 2 As shown, one end face of the sealing protrusion 21 away from the core assembly 30 is configured as a circular arc surface 211, and the sealing protrusion 21 can abut the plane 121 through the circular arc surface 211 to block the valve port 101. In this way, by utilizing the structural characteristics of the circular arc surface 211, when the sealing protrusion 21 blocks the valve port 101 driven by the core assembly 30, the sealing performance of the sealing protrusion 21 when blocking the valve port 101 can be ensured. In this process, the movement stroke required for the sealing protrusion 21 to block the valve port 101 can be reduced, and the normal operation of the drain valve 100 can be ensured. Here, when the sealing protrusion 21 presses against the baffle 12, the elastic deformation of the sealing protrusion 21 can be utilized to achieve effective sealing of the valve port. It should be noted that the sealing protrusion 21 is connected to the diaphragm 20 as a whole, and can be specifically made of rubber or silicone. Of course, in other embodiments, the end surface of the sealing protrusion 21 away from the core assembly 30 can also be configured as a plane or other irregular shapes, as long as the movement stroke of the sealing protrusion 21 driven by the core assembly 30 is large enough.

[0046] like Figure 2As shown, the core assembly 30 includes a fixed core 31, a movable core 32 and an elastic member 33, and the elastic member 33 is pre-compressed and assembled between the fixed core 31 and the movable core 32. When the drain valve 100 is working and the coil assembly 40 is energized, the magnetic field generated by the energization of the coil assembly 40 can be used to drive the movable core 32 to compress the elastic member 33 and move toward the fixed core 31. Here, the movable core 32 is partially inserted into the sealing protrusion 21 and connected to the sealing protrusion 21; wherein the elastic member 33 is configured as a core spring, a bellows, or other rubber sleeves with high elasticity.

[0047] like Figure 2 As shown, a magnetic ring 34 is embedded on one end of the fixed iron core 31 facing the movable iron core 32, so that the drain valve 100 can be directly applied to AC power occasions and the operation of the drain valve 100 is noiseless. It should be noted that the working principle of embedding the magnetic ring 34 on the fixed iron core 31 so that the drain valve 100 can be applied to AC power occasions can be adopted in the existing conventional manner, which will not be elaborated here.

[0048] like Figure 2 As shown, one end surface of the fixed core 31 facing the movable core 32 is set as a ferromagnetic surface 311, wherein the area of ​​the ferromagnetic surface 311 located on the inner side of the magnetic dividing ring 34 is equal to the area of ​​the ferromagnetic surface 311 located on the outer side of the magnetic dividing ring. This can further increase the magnetic amount that the magnetic dividing ring 34 can generate and ensure that the drain valve 100 does not generate noise when working under alternating current.

[0049] like Figure 2 As shown, the drain valve 100 further includes a cushion cup 50, which is sleeved on the sealing protrusion 21 and abuts against the movable iron core 32. When the movable iron core 32 drives the sealing protrusion 21 to block the valve port 101, the movable iron core 32 can also use the cushion cup 50 to push the sealing protrusion 21, which can facilitate the driving of the sealing protrusion 21 to block the valve port 101 by the movable iron core 32 and improve the stability of the sealing of the valve port 101 when the sealing protrusion 21 blocks the valve port 101.

[0050] On the moving path of the movable iron core 32, there is a position interference portion 501 between the cushion cup 50 and the sealing protrusion 21, and the cushion cup 50 is configured to push the sealing protrusion 21 against the plane 121 in response to the compression of the position interference portion 501. Here, the position interference portion 501 is a planar structure arranged parallel to the plane 121.

[0051] like Figure 2 , Figure 4As shown, the drain valve 100 further includes a pressing plate 60, which is used to press the diaphragm 20 to limit the position on the valve body 10, and specifically realize the assembly connection of the diaphragm 20 on the valve body 10. Here, the diaphragm 20 is deformed under pressure, so that an independent chamber for sewage to flow can be formed between the valve body 10 and the diaphragm 20, which can also prevent the sewage conducted in the valve body 10 from entering the iron core assembly 30 and causing corrosion to the iron core assembly 30.

[0052] like Figure 4 As shown, a vent hole 61 is provided on the pressure plate 60, and a chamber 102 formed between the pressure plate 60 and the diaphragm 20 can be ventilated with the external environment through the vent hole 61, so that when the sealing protrusion 21 on the diaphragm 20 is telescopically moved relative to the baffle 12 by the action of the movable iron core 32, the air in the chamber 102 can be exchanged with the external environment, thereby preventing the movement of the sealing protrusion 21 from being hindered.

[0053] like Figure 4 As shown, an extended protrusion 62 is formed on the pressing plate 60, and the extended protrusion 62 is connected to the vent hole 61; wherein the extended protrusion 62 can be plugged and matched with the valve body 10, so that the structure of the extended protrusion 62 on the pressing plate 60 can, on the one hand, play a foolproof role when the pressing plate 60 is assembled on the valve body 10, and on the other hand, can play a guiding role for the exchanged air, so as to facilitate the exchange of the air in the chamber 102 with the external environment. Here, the number of the vent holes 61 is 4, and the number of the extended protrusions 62 is two, and the two extended protrusions 62 are symmetrically arranged on both sides of the pressing plate 60 and are respectively connected to the corresponding vent holes 61.

[0054] like Figure 4 As shown, a plurality of convex ribs 63 are formed on the pressing plate 60, and the plurality of convex ribs 63 are arranged at intervals along the circumferential direction of the movable iron core 32 and respectively slide with the movable iron core 32, so that the pressing plate 60 can guide the movement of the movable iron core 32 through the plurality of convex ribs 63. In addition, the gap between two adjacent convex ribs 63 can be used to exchange air with the external environment to ensure that the air in the chamber 102 does not hinder the movement of the movable iron core 32. Here, a notch 64 is also provided on the pressing plate 60, and the air conducted through the gap between two adjacent convex ribs 63 can be exchanged with the external environment through the notch 64.

[0055] like Figure 1 , Figure 2 As shown, the pressure plate 60 is arranged inside the valve body 10; wherein, the drain valve 100 further includes a magnetic conductive plate 70, which covers the valve body 10 and is connected to the valve body 10, and is used to press and limit the pressure plate 60 assembled in the valve body 10, so that the pressure plate 60 can be assembled and connected to the valve body 10. Here, the magnetic conductive plate 70 can be assembled to the valve body 10 by screws 71.

[0056] In addition, it should be noted that the drain valve 100 of the present application also includes a magnet 80 and a spring 90. The magnet 80 is connected and fixed to the magnetic plate 70, and the coil assembly 40 is assembled between the magnet 80 and the magnetic plate 70; the spring 90 is sleeved on the part of the movable iron core 32 inserted into the pressure plate 60, one end of the spring 90 abuts against the pressure plate 60, and the other end of the spring 90 abuts against the pad cup 50.

[0057] In summary, the coil assembly 40 of the drain valve 100 of the present application can be directly connected to alternating current, and the magnetic field generated after the coil assembly 40 is energized is used to control the movement of the movable iron core 32 toward the fixed iron core 31. In this process, the elastic member 33 and the spring 90 are used to enable the sealing protrusion 21 on the diaphragm 20 to control the on / off of the valve port 101, thereby achieving the purpose of controlling the sewage flow.

[0058] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A drain valve, characterized in that: The drain valve (100) comprises: The valve body (10) is formed with a water inlet pipe (11), a baffle (12) and a water outlet pipe (13); the baffle (12) is provided with a valve port (101), and the water inlet pipe (11) can be connected to the water outlet pipe (13) through the valve port (101); A diaphragm (20) is mounted on the valve body (10), and the diaphragm (20) has a sealing protrusion (21); An iron core assembly (30) is mounted on the valve body (10) and is drivingly connected to the sealing protrusion (21) so as to control the on / off state of the valve port (101) under the drive of the iron core assembly (30); Wherein, an end surface of the baffle (12) facing the core assembly (30) is configured as a plane (121).

2. The drain valve according to claim 1, characterized in that: An end surface of the sealing protrusion (21) away from the core assembly (30) is configured as an arc surface (211), and the sealing protrusion (21) can abut against the plane (121) through the arc surface (211) to seal the valve port (101).

3. The drain valve according to claim 1, characterized in that: The core assembly (30) comprises a movable core (32), wherein a portion of the movable core (32) is inserted into the sealing protrusion (21) and connected to the sealing protrusion (21); Wherein, the drain valve (100) further comprises a cushion cup (50), wherein the cushion cup (50) is sleeved on the sealing protrusion (21) and abuts against the movable iron core (32).

4. The drain valve according to claim 3, characterized in that: On the moving path of the movable iron core (32), a position interference portion (501) is provided between the cushion cup (50) and the sealing protrusion (21), and the cushion cup (50) is configured to push the sealing protrusion (21) against the plane (121) in response to the squeezing of the position interference portion (501).

5. The drain valve according to claim 1, characterized in that: The drain valve (100) further comprises a pressing plate (60), wherein the pressing plate (60) is used to press the diaphragm (20) to limit its position on the valve body (10); The pressing plate (60) is provided with a vent hole (61), and the chamber (102) formed between the pressing plate (60) and the diaphragm (20) can be ventilated with the external environment through the vent hole (61).

6. The drain valve according to claim 5, characterized in that: The core assembly (30) comprises a movable core (32), wherein the movable core (32) is telescopically mounted on the pressure plate (60) and is drivingly connected to the sealing protrusion (21); Wherein, a plurality of convex ribs (63) are formed on the pressure plate (60), and the plurality of convex ribs (63) are arranged at intervals along the circumferential direction of the movable iron core (32) and are respectively slidably matched with the movable iron core (32).

7. The drain valve according to claim 5, characterized in that: The pressure plate (60) is arranged inside the valve body (10); The drain valve (100) further comprises a magnetic conductive plate (70), which covers the valve body (10) and is connected to the valve body (10) and is used to limit the pressure plate (60) assembled in the valve body (10).

8. The drain valve according to claim 7, characterized in that: An extended protrusion (62) is formed on the pressing plate (60), and the extended protrusion (62) is communicated with the vent hole (61); The extending protrusion (62) can be plug-fitted into the valve body (10).

9. The drain valve according to claim 1, characterized in that: The iron core assembly (30) comprises a fixed iron core (31), a movable iron core (32) and an elastic member (33), wherein the elastic member (33) is assembled between the fixed iron core (31) and the movable iron core (32) in a pre-pressed manner; A magnetic separation ring (34) is embedded on one end of the fixed iron core (31) facing the movable iron core (32).

10. The drain valve according to claim 9, characterized in that: An end surface of the fixed iron core (31) facing the movable iron core (32) is set as a ferromagnetic surface (311); The area of ​​the ferromagnetic surface (311) located on the inner side of the magnetic dividing ring (34) is equal to the area of ​​the ferromagnetic surface (311) located on the outer side of the magnetic dividing ring (34).

Images