Rear electromagnetic valve and water purifier

Abstract

The utility model discloses a rear electromagnetic valve and a water purifier. The rear electromagnetic valve comprises a valve body, an electromagnetic valve body, a one-way valve assembly and a plug. The valve body is provided with a valve body, a water inlet pipe connector and a water outlet pipe connector, a valve port and a straight channel are formed in the valve body, and the water inlet pipe connector can be communicated with the water outlet pipe connector sequentially through the valve port and the straight channel. The electromagnetic valve main body is mounted on the valve main body and is used for controlling the opening / closing of the valve port; the one-way valve assembly is arranged in the straight channel, independently arranged relative to the valve body and used for controlling one-way connection of the water outlet pipe connector. The plug is arranged in the straight channel and is hermetically connected with the valve main body; the one-way valve assembly can be pressed and limited into the valve body through the plug. Therefore, when the rear electromagnetic valve is applied to the water purifier, the design of a water path can be simplified, and the function of reducing cost is achieved; in addition, the one-way valve assembly can be conveniently assembled in the valve body, and the water outlet pipe connector can be configured to be in the standard size so that the water outlet pipe connector can be conveniently assembled and connected with an external pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field related to electromagnetic valves, and particularly relates to a post-mounted electromagnetic valve and a water purifier. Background Art

[0002] At present, existing water purifiers usually install a one-way valve on the water outlet waterway of the rear solenoid valve, and use the one-way valve to control the one-way conduction of the water outlet waterway to prevent water in the water outlet waterway from flowing back to the solenoid valve and causing the solenoid valve to fail, thereby causing the entire water purifier to fail. However, since the rear solenoid valve and the one-way valve are independent of each other, this will increase the cost of the water purifier. Utility Model Content

[0003] In view of this, it is necessary to provide a post-solenoid valve and a water purifier for solving the above-mentioned technical problems.

[0004] A rear solenoid valve, the rear solenoid valve comprising:

[0005] The valve body comprises a valve main body, a water inlet pipe joint and a water outlet pipe joint, wherein a valve port and a straight channel are formed on the valve main body, and the water inlet pipe joint can be connected with the water outlet pipe joint through the valve port and the straight channel in sequence;

[0006] A solenoid valve body, mounted on the valve body, for controlling the on / off of the valve port;

[0007] A one-way valve assembly, arranged in the straight channel and independently arranged relative to the valve body, for controlling the one-way conduction of the water outlet pipe joint;

[0008] A plug, disposed in the straight channel and sealedly connected to the valve body;

[0009] Wherein, the one-way valve assembly can be pressed and limited into the valve body by the plug.

[0010] It can be understood that the one-way valve assembly is installed in the valve body so that the rear solenoid valve integrates the function of the one-way valve. In this way, when the rear solenoid valve is used in a water purifier, the water circuit design can be simplified, which has the effect of reducing costs. In addition, the one-way valve assembly is directly pressed and limited to the valve body with a plug. On the one hand, this can facilitate the assembly of the one-way valve assembly in the valve body, and on the other hand, the assembly and connection of the one-way valve assembly in the valve body will not affect the water outlet pipe joint, so that the water outlet pipe joint can be configured to a standard size for easy assembly and connection with an external pipeline.

[0011] In one of the embodiments, a step surface is formed on the valve body, and the step surface is arranged on a side of the one-way valve assembly away from the plug and abuts against the one-way valve assembly.

[0012] In one embodiment, the plug has an extended protruding ring, and the extended protruding ring can abut against the one-way valve assembly;

[0013] Wherein, the one-way valve assembly is communicated with the extended convex ring.

[0014] It can be understood that the abutment between the step surface and the one-way valve assembly is used to limit the insertion depth of the one-way valve assembly when it is assembled in the valve body, so that the assembly of the one-way valve assembly in the valve body can be facilitated.

[0015] In one embodiment, the plug further comprises a plug body, the plug body is sealedly connected to the valve body and communicated with the extended convex ring;

[0016] Wherein, a baffle is formed on the valve body, the plug body abuts against the baffle, and the valve port can be communicated with the extended convex ring through the plug body.

[0017] In one of the embodiments, the post-solenoid valve further includes a first sealing ring, which is disposed between the plug and the valve body and deformed under pressure.

[0018] It can be understood that the first sealing ring is deformed under pressure to achieve assembly sealing when the plug is assembled in the valve body, which can ensure the sealing performance of the plug when it is assembled in the valve body.

[0019] In one embodiment, the plug is connected to the valve body by ultrasonic welding.

[0020] It can be understood that the plug is connected to the valve body by ultrasonic welding, which can facilitate the assembly of the plug into the valve body on the one hand, and further ensure the sealing of the assembly between the plug and the valve body on the other hand.

[0021] In one of the embodiments, the post-mounted solenoid valve further includes a filter screen, and the filter screen is installed in the water inlet pipe joint.

[0022] It can be understood that, by utilizing the structural characteristics of the filter screen, the rear solenoid valve can be used in a water purifier to filter the water introduced through the water inlet pipe joint.

[0023] In one embodiment, the one-way valve assembly includes a first housing, a second housing, a one-way valve core and an elastic member, the first housing is sleeved on the second housing and fixedly connected to the second housing, and a medium channel is formed between the first housing and the second housing, the one-way valve core and the elastic member are both arranged in the medium channel;

[0024] The elastic member is pre-compressed and assembled between the one-way valve core and the second housing, and is used to push the one-way valve core to block the part of the medium channel located in the first housing, and control the one-way conduction of the medium channel.

[0025] In one embodiment, the solenoid valve body includes a pilot seat, a diaphragm and a pressure plate, the diaphragm portion is disposed between the valve body and the pilot seat and deformed under pressure, and the pressure plate is connected to the diaphragm;

[0026] The pressure plate and the diaphragm are respectively provided with mutually communicating pilot holes, and the pilot holes are communicated with the water inlet pipe joint.

[0027] It can be understood that, by utilizing the pilot effect of the pilot hole, the rear solenoid valve can be used in a high water pressure environment.

[0028] The present application also seeks to protect a water purifier, comprising the above-mentioned rear solenoid valve.

[0029] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0030] The rear solenoid valve and water purifier for which protection is sought in the present application integrate the one-way valve assembly into the valve body, so that the rear solenoid valve integrates the function of the one-way valve. In this way, when the rear solenoid valve is used in the water purifier, the water circuit design can be simplified, which has the effect of reducing costs. In addition, the one-way valve assembly is directly pressed and limited into the valve body by a plug. This can facilitate the assembly of the one-way valve assembly in the valve body on the one hand, and on the other hand, the assembly and connection of the one-way valve assembly in the valve body will not affect the water outlet pipe joint, so that the water outlet pipe joint can be configured to a standard size for easy assembly and connection with an external pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 A schematic diagram of the structure of a rear solenoid valve provided in one embodiment of the present application.

[0033] Figure 2 A schematic structural diagram of a rear solenoid valve from another perspective provided in an embodiment of the present application.

[0034] Figure 3A cross-sectional view of a rear solenoid valve provided in accordance with an embodiment of the present application.

[0035] Figure 4 It is a cross-sectional view of the one-way valve assembly in this application.

[0036] Figure 5 It is a schematic diagram of the structure of the plug in this application.

[0037] : Illustration numerals: 100, post-solenoid valve; 10, valve body; 11, valve main body; 111, valve port; 112, straight channel; 113, step surface; 114, baffle; 12, water inlet pipe joint; 13, water outlet pipe joint; 20, solenoid valve main body; 201, pilot hole; 21, pilot seat; 22, diaphragm; 23, pressure plate; 231, through hole; 24, core assembly; 25, coil assembly; 30, one-way valve assembly; 301, medium channel; 31, first shell; 32, second shell; 33, one-way valve core; 331, sealing ring; 34, elastic member; 40, plug; 41, extension convex ring; 42, plug main body; 50, filter screen; 101, first sealing ring; 102, second sealing ring. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] like Figures 1 to 3As shown, a post-mounted solenoid valve 100 provided in an embodiment of the present application includes a valve body 10, a solenoid valve body 20, a one-way valve assembly 30 and a plug 40; the valve body 10 has a valve body 11, an inlet pipe joint 12 and an outlet pipe joint 13, and a valve port 111 and a straight channel 112 are formed on the valve body 11, and the inlet pipe joint 12 can be connected to the outlet pipe joint 13 through the valve port 111 and the straight channel 112 in sequence; the solenoid valve body 20 is installed on the valve body 11, and is used to control the on / off of the valve port 111; the one-way valve assembly 30 is arranged in the straight channel 112 and is independently arranged relative to the valve body 11, and is used to control the one-way conduction of the outlet pipe joint 13; the plug 40 is arranged in the straight channel 112 and is sealed to the valve body 11; wherein the one-way valve assembly 30 can be compressed and limited to the valve body 11 by the plug 40. That is, the one-way valve assembly 30 and the plug 40 can be sequentially installed into the straight channel 112 , and the one-way valve assembly 30 and the plug 40 can be assembled and connected in the valve body 11 .

[0042] It can be understood that the one-way valve assembly 30 is integrated into the valve body 11, so that the rear solenoid valve 100 integrates the function of the one-way valve. In this way, when the rear solenoid valve 100 is used in a water purifier, the water circuit design can be simplified, which has the effect of reducing costs. In addition, the one-way valve assembly 30 is directly pressed and limited to the inside of the valve body 11 by the plug 40. On the one hand, this can facilitate the assembly of the one-way valve assembly 30 in the valve body 11, and on the other hand, the assembly connection of the one-way valve assembly 30 in the valve body 10 will not affect the water outlet pipe joint 13, so that the water outlet pipe joint 13 can be configured to a standard size for easy assembly and connection with an external pipeline.

[0043] like Figure 3 As shown, a step surface 113 is formed on the valve body 11, and the step surface 113 is arranged on a side of the one-way valve assembly 30 away from the plug 40 and abuts against the one-way valve assembly 30. That is to say, when the one-way valve assembly 30 is assembled in the valve body 11, the step surface 113 on the valve body 11 and the plug 40 can be used together to limit the one-way valve assembly 30, and when the one-way valve assembly 30 is assembled in the valve body 11, the step surface 113 on the valve body 11 can be used to limit the insertion depth of the one-way valve assembly 30 when assembled in the valve body 11, so that the assembly of the one-way valve assembly 30 in the valve body 10 can be facilitated.

[0044] like Figure 3As shown, the solenoid valve body 20 includes a pilot seat 21, a diaphragm 22 and a pressure plate 23. The diaphragm 22 is partially arranged between the valve body 11 and the pilot seat 21 and deformed by pressure. The pressure plate 23 is connected to the diaphragm 22; wherein, the pressure plate 23 and the diaphragm 22 are respectively provided with mutually connected pilot holes 201, and the pilot holes 201 are connected to the water inlet pipe joint 12. In other words, the solenoid valve body 20 is configured as a pilot valve structure, so that the post-mounted solenoid valve 100 can be used in a high water pressure environment. It should be noted that the solenoid valve body 20 also includes an iron core assembly 24 and a coil assembly 25. The iron core assembly 24 can realize the control of the opening / closing of the through hole 231 on the pressure plate 23 under the control of the coil assembly 25, and realize the control of the opening / closing of the valve port 111 when the solenoid valve body 20 is working. Of course, the working principle of the solenoid valve body 20 can adopt the conventional method of the existing pilot valve structure, which will not be elaborated here.

[0045] like Figure 4 As shown, the one-way valve assembly 30 includes a first shell 31, a second shell 32, a one-way valve core 33 and an elastic member 34. The first shell 31 is mounted on the second shell 32 and fixedly connected to the second shell 32. Specifically, the assembly connection between the first shell 31 and the second shell 32 can be achieved by a snap-fitting manner; and a medium channel 301 is formed between the first shell 31 and the second shell 32. The one-way valve core 33 and the elastic member 34 are arranged in the medium channel 301; wherein the elastic member 34 is assembled between the one-way valve core 33 and the second shell 32 in a pre-compressed manner, and is used to push the one-way valve core 33 to block the part of the medium channel 301 located in the first shell 31, and control the one-way conduction of the medium channel 301. In this way, the elastic push of the one-way valve core 33 by the elastic member 34 makes it possible for water to flow only from the first shell 31 to the second shell 32, but not from the second shell 32 to the first shell 31. Here, a sealing ring 331 is mounted on the one-way valve core 33, so that the one-way valve core 33 can drive the sealing ring 331 to abut against the first shell 31, and seal the part of the medium channel 301 located in the first shell 31; wherein, the elastic member 34 can be configured as a spring. Of course, for those skilled in the art, the elastic member 34 can also be configured as a bellows, a rubber sleeve with high elasticity, etc.

[0046] like Figure 4 As shown, a second sealing ring 102 is also mounted on the first shell 31 , and when the one-way valve assembly 30 is assembled into the valve body 11 , the second sealing ring 102 can be deformed under pressure and realize the assembly seal of the one-way valve assembly 30 when assembled in the valve body 11 .

[0047] like Figure 5As shown, the plug 40 has an extended protruding ring 41, and the extended protruding ring 41 can abut the one-way valve assembly 30. In other words, the one-way valve assembly 30 can be pressed and limited to the step surface 113 of the valve body 11 by the extended protruding ring 41 on the plug 40, and the one-way valve assembly 30 can be pressed and limited by the plug 40. Here, the extended protruding ring 41 is connected to the one-way valve assembly 30, so that the water introduced by the valve port 111 on the valve body 11 can flow to the one-way valve assembly 30 through the extended protruding ring 41.

[0048] like Figure 5 As shown, the plug 40 also has a plug body 42, which is sealed and connected to the valve body 11 and communicates with the extended protruding ring 41. Here, the plug body 42 and the extended protruding ring 41 are connected as one body.

[0049] like Figure 4 As shown, a baffle 114 is formed on the valve body 11, and the plug body 42 abuts against the baffle 114, so that the assembly position of the plug 40 when assembled in the valve body 11 can be limited, so as to facilitate the subsequent assembly connection between the plug 40 and the valve body 11; and the valve port 111 can be connected with the extended convex ring 41 through the plug body 42. In this way, the water introduced by the water inlet pipe joint 12 will first flow into the plug body 42 after passing through the valve port 111, and then flow to the one-way valve assembly 30 through the extended convex ring 41, so as to meet the use demand of water flowing in the valve body 11.

[0050] like Figure 3 As shown, the post-solenoid valve 100 also includes a first sealing ring 101, which is arranged between the plug 40 and the valve body 11 and deformed under pressure. Specifically, the first sealing ring 101 can be mounted on the plug body 42, so that the assembly seal of the plug 40 when assembled on the valve body 11 can be achieved, and the sealing performance of the plug 40 when assembled on the valve body 11 can be ensured.

[0051] Among them, the plug 40 is connected to the valve body 11 by ultrasonic welding, and the assembly connection of the plug 40 on the valve body 11 is realized. This can facilitate the assembly of the plug 40 to the valve body 11 on the one hand, and further ensure the sealing of the assembly between the plug 40 and the valve body 11 on the other hand.

[0052] like Figure 1 , Figure 3 As shown, the rear solenoid valve 100 further includes a filter screen 50, which is installed in the water inlet pipe joint 12, so that the rear solenoid valve 100 can be used in a water purifier to filter the water introduced by the water inlet pipe joint 12. Here, the filter screen 50 is independently arranged relative to the water inlet pipe joint 12, and the filter screen 50 can be detachably assembled into the water inlet pipe joint 12.

[0053] In addition, the present application also provides a water purifier, including the post-solenoid valve 100 described above.

[0054] 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.

[0055] 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 post-mounted solenoid valve, characterized in that: The rear solenoid valve (100) comprises: A valve body (10) comprises a valve main body (11), a water inlet pipe joint (12) and a water outlet pipe joint (13); a valve port (111) and a straight channel (112) are formed on the valve main body (11); the water inlet pipe joint (12) can be connected to the water outlet pipe joint (13) through the valve port (111) and the straight channel (112) in sequence; A solenoid valve body (20), mounted on the valve body (11), and used to control the on / off state of the valve port (111); A one-way valve assembly (30), arranged in the straight channel (112) and independently arranged relative to the valve body (11), and used for controlling the one-way conduction of the water outlet pipe joint (13); A plug (40) is disposed in the straight channel (112) and is sealed and connected to the valve body (11); The one-way valve assembly (30) can be compressed and limited into the valve body (11) by the plug (40).

2. The post-mounted solenoid valve according to claim 1, characterized in that: The plug (40) has an extended protruding ring (41), and the extended protruding ring (41) is capable of abutting against the one-way valve assembly (30); Wherein, the one-way valve assembly (30) is in communication with the extending protruding ring (41).

3. The post-mounted solenoid valve according to claim 2, characterized in that: The plug (40) further comprises a plug body (42), wherein the plug body (42) is sealingly connected to the valve body (11) and communicates with the extended protruding ring (41); A baffle (114) is formed on the valve body (11), the plug body (42) abuts against the baffle (114), and the valve port (111) can be connected to the extended protruding ring (41) through the plug body (42).

4. The post-mounted solenoid valve according to claim 1, characterized in that: A step surface (113) is formed on the valve body (11), and the step surface (113) is arranged on a side of the one-way valve assembly (30) away from the plug (40) and abuts against the one-way valve assembly (30).

5. The post-mounted solenoid valve according to claim 1, characterized in that: The post-mounted solenoid valve (100) further comprises a first sealing ring (101), wherein the first sealing ring (101) is arranged between the plug (40) and the valve body (11) and deformed under pressure.

6. The post-mounted solenoid valve according to claim 1, characterized in that: The plug (40) is connected to the valve body (11) by ultrasonic welding.

7. The post-mounted solenoid valve according to claim 1, characterized in that: The post-mounted solenoid valve (100) further comprises a filter screen cover (50), and the filter screen cover (50) is installed in the water inlet pipe joint (12).

8. The post-mounted solenoid valve according to claim 1, characterized in that: The one-way valve assembly (30) comprises a first housing (31), a second housing (32), a one-way valve core (33) and an elastic member (34); the first housing (31) is mounted on the second housing (32) and is fixedly connected to the second housing (32); a medium channel (301) is formed between the first housing (31) and the second housing (32); the one-way valve core (33) and the elastic member (34) are both arranged in the medium channel (301); The elastic member (34) is pre-compressed and assembled between the one-way valve core (33) and the second shell (32), and is used to push the one-way valve core (33) to block the part of the medium channel (301) located in the first shell (31), and control the one-way conduction of the medium channel (301).

9. The post-mounted solenoid valve according to claim 1, characterized in that: The solenoid valve body (20) comprises a pilot seat (21), a diaphragm (22) and a pressure plate (23); the diaphragm (22) is partially disposed between the valve body (11) and the pilot seat (21) and deformed under pressure; and the pressure plate (23) is connected to the diaphragm (22); The pressure plate (23) and the diaphragm (22) are respectively provided with mutually communicating pilot holes (201), and the pilot holes (201) are communicated with the water inlet pipe joint (12).

10. A water purifier, characterized in that: The invention comprises a post-solenoid valve (100) according to any one of claims 1 to 9.

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