Valve element assembly, gas proportional valve and gas water heater

Abstract

According to the valve element assembly, the gas proportional valve and the gas water heater, the valve element assembly comprises a valve plug, a leather film, a tray, a fixing base and a magnet, and the valve plug comprises an extending convex column; the leather membrane comprises a leather membrane main body and a connecting convex part, the leather membrane main body is arranged on the periphery of the connecting convex part and is connected with the connecting convex part to form an integrated structure, and the connecting convex part sleeves the extending convex column and is connected with the extending convex column; the tray is arranged on one side of the leather membrane main body, is in interference fit with the connecting convex part and is used for supporting the leather membrane main body; the fixed seat is arranged on the other side of the leather membrane main body and is in interference fit with the connecting convex part; and the magnet is arranged on the fixed seat. Therefore, the structure required for assembling the tray and the fixing seat can be omitted, the integral structure of the valve core assembly is simplified, the integral assembly of the valve core assembly is facilitated, and the effect of reducing the cost is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of gas valve, especially relates to a valve core subassembly, gas proportional valve and gas water heater. BACKGROUND

[0002] Valve core subassembly, for gas proportional valve's important component part, is used for controlling the opening of gas proportional valve in gas passage / close and flow stability.

[0003] At present, the magnet fixed seat in the valve core subassembly of existing gas proportional valve usually adopts screw rod fixed to the valve plug, specifically, the one end of screw rod is wrapped in the valve plug, the other end of screw rod is fixed to the magnet fixed seat in the way of spin riveting after passing through tray, skin film in proper order, wherein, tray needs to be fixed to skin film by the aid of gasket, clasp spring and other connecting pieces. However, limited by the structure of above-mentioned valve core subassembly, make the overall structure of this valve core subassembly complex, assembly complex and more working hours, like this can increase the overall manufacturing cost of this valve core subassembly, can not satisfy the use demand of gas proportional valve cost reduction. SUMMARY

[0004] Therefore, it is necessary to provide a valve core subassembly, gas proportional valve and gas water heater for solving the above technical problems.

[0005] A valve core subassembly is applied to a gas proportional valve, and the valve core subassembly comprises:

[0006] The valve plug comprises an extension protruding column;

[0007] The skin film comprises a skin film main body and a connecting protruding part, the skin film main body is arranged at the periphery of the connecting protruding part and is connected with the connecting protruding part as an integral structure, the connecting protruding part is sleeved on the extension protruding column and is connected with the extension protruding column;

[0008] The tray is arranged on one side of the skin film main body and is in interference fit with the connecting protruding part, and is used for supporting the skin film main body;

[0009] The fixed seat is arranged on the other side of the skin film main body and is in interference fit with the connecting protruding part;

[0010] The magnet is installed on the fixed seat.

[0011] It can be understood that the tray and the fixed seat are connected with the connecting protruding part on the skin film in the interference fit mode, and the assembly of the tray and the fixed seat in the valve core subassembly is realized in this way, so that the structure required for the assembly of the tray and the fixed seat can be saved, the overall structure of the valve core subassembly is simplified, the overall assembly of the valve core subassembly is facilitated, and the cost is reduced.

[0012] In one of the embodiments, a first clamping portion is formed on the connecting protrusion, and the first clamping portion is capable of clamping with the tray and making the first clamping portion and the tray in interference fit;

[0013] The extending protrusion is arranged through the first clamping portion.

[0014] It can be understood that the extending protrusion is used to support the first clamping portion on the connecting protrusion, and the first clamping portion on the connecting protrusion and the tray are clamped in interference fit at the same time, so that the tray is facilitated to be assembled on the connecting protrusion.

[0015] In one of the embodiments, a second clamping portion is formed on the connecting protrusion, and the second clamping portion is capable of clamping with the fixing base and making the second clamping portion and the fixing base in interference fit;

[0016] The extending protrusion is arranged through the second clamping portion.

[0017] It can be understood that the extending protrusion is used to support the second clamping portion on the connecting protrusion, and the second clamping portion on the connecting protrusion and the fixing base are clamped in interference fit at the same time, so that the fixing base is facilitated to be assembled on the connecting protrusion.

[0018] In one of the embodiments, the extending protrusion is connected with the connecting protrusion in clamping mode.

[0019] It can be understood that the extending protrusion and the connecting protrusion are connected in clamping mode, so that the assembly between the skin film and the extending protrusion is facilitated.

[0020] In one of the embodiments, a ring groove is formed on the extending protrusion, a third clamping portion is formed on the connecting protrusion, and the third clamping portion is capable of clamping with the ring groove.

[0021] In one of the embodiments, a guide cone head is formed on the extending protrusion, the guide cone head is arranged on one side of the ring groove in the extending direction of the extending protrusion, and is used to guide the extending protrusion to be inserted into the connecting protrusion;

[0022] The connecting protrusion is inwardly surrounded to form a conical cavity, and the connecting protrusion is capable of accommodating the guide cone head through the conical cavity.

[0023] It can be understood that the guide cone head is used to guide the insertion of the extending protrusion into the connecting protrusion, so that the assembly between the extending protrusion and the connecting protrusion is further facilitated.

[0024] In one of the embodiments, the valve plug further comprises a valve plug body, the extension post is arranged at one end of the valve plug body and is connected with the valve plug body as an integral structure.

[0025] The valve core assembly further comprises a sealing ring, the sealing ring is sleeved on the end of the valve plug body away from the extension post and is in abutting position limiting with the valve plug body.

[0026] It can be understood that the valve plug is configured as an integral structure, so that the valve plug is convenient to manufacture, and the manufacturing cost of the valve plug is reduced.

[0027] In one of the embodiments, the fixing seat is provided with a plurality of clamping claws, and the plurality of clamping claws are arranged along the circumferential direction of the fixing seat.

[0028] The magnet is accommodated in the fixing seat and is in abutting position limiting with the plurality of clamping claws.

[0029] It can be understood that the magnet accommodated in the fixing seat is fixed by the clamping claw, so that the magnet is assembled and fixed in the fixing seat.

[0030] The application further provides a gas proportional valve comprising the valve core assembly.

[0031] The application further provides a gas water heater comprising the gas proportional valve.

[0032] Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0033] The valve core assembly, the gas proportional valve and the gas water heater claimed in the application are connected with the film upper connecting convex part in an interference fit manner by the tray and the fixing seat, and the assembly of the tray and the fixing seat in the valve core assembly is realized, so that the structure required for the assembly of the tray and the fixing seat is saved, the overall structure of the valve core assembly is simplified, the overall assembly of the valve core assembly is facilitated, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 The structure diagram of the valve core assembly provided by the application.

[0036] Figure 2 A sectional view of the valve core assembly provided in the present application.

[0037] Figure 3 A sectional view of the valve core assembly provided in the present application. Figure 2 An enlarged view of the middle P part.

[0038] Figure 4 A structural schematic view of the valve plug in the present application.

[0039] Figure 5 A structural schematic view of the skin film in the present application.

[0040] Figure 6 A sectional view of the gas proportional valve provided in the present application.

[0041] Reference signs: 1000, gas proportional valve; 1100, gas passage; 100, valve core assembly; 110, sealing ring; 10, valve plug; 11, extended protrusion; 111, ring groove; 112, guide cone head; 12, valve plug body; 20, skin film; 21, skin film body; 22, connecting protrusion; 221, first clamping part; 222, second clamping part; 223, third clamping part; 224, conical cavity; 30, tray; 40, fixed seat; 41, clamping jaw; 50, magnet; 200, valve body; 210, valve port; 300, normally closed electromagnetic valve; 400, electromagnetic assembly. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] It should be noted that when an element is referred to as "provided on" another element, it can be directly provided on the other element or there can be a middle element. When an element is referred to as "provided on" another element, it can be directly provided on the other element or there can be a middle element. When an element is referred to as "fixed on" another element, it can be directly fixed on the other element or there can be a middle element.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "therefore" and "because" are used interchangeably with the term "as a result of."

[0045] The valve core assembly 100 claimed in the present application, in particular the valve core structure applied to the gas proportional valve 1000 of the gas water heater.

[0046] As shown in Figures 1 to 5 , the valve core assembly 100 provided by the present application includes a valve plug 10, a diaphragm 20, a tray 30, a fixed seat 40 and a magnet 50, the valve plug 10 includes an extension protrusion 11; the diaphragm 20 includes a diaphragm body 21 and a connecting protrusion 22, the diaphragm body 21 is arranged on the periphery of the connecting protrusion 22 and connected with the connecting protrusion 22 as an integral structure, the connecting protrusion 22 is sleeved on the extension protrusion 11 and connected with the extension protrusion 11; the tray 30 is arranged on one side of the diaphragm body 21 and interference fits with the connecting protrusion 22, for supporting the diaphragm body 21; the fixed seat 40 is arranged on the other side of the diaphragm body 21 and interference fits with the connecting protrusion 22; the magnet 50 is installed on the fixed seat 40.

[0047] As can be seen from the above, the tray 30 and the fixed seat 40 of the valve core assembly 100 are connected with the connecting protrusion 22 of the diaphragm 20 in the form of interference fit, and the assembly of the tray 30 and the fixed seat 40 in the valve core assembly 100 is realized in this way, which not only saves the structure required for the assembly of the tray 30 and the fixed seat 40, and simplifies the overall structure of the valve core assembly 100, but also facilitates the overall assembly of the valve core assembly 100, and has the effect of reducing cost.

[0048] As shown in Figure 2 , Figure 3 , in an embodiment, the extension protrusion 11 is connected with the connecting protrusion 22 in the form of clamping, and the assembly connection between the diaphragm 20 and the valve plug 10 is realized in this way, which facilitates the assembly between the diaphragm 20 and the extension protrusion 11.

[0049] As shown in Figure 3 , Figure 4 , in the embodiment, a ring groove 111 is formed on the extension protrusion 11, and a third clamping portion 223 is formed on the connecting protrusion 22, the third clamping portion 223 can be clamped and matched with the ring groove 111, and the clamping and matching between the extension protrusion 11 and the connecting protrusion 22 is realized.

[0050] As shown in Figure 3 , Figure 4As shown in the drawings, in an embodiment, the extension protrusion 11 is formed with a guide cone head 112, which is arranged on one side of the ring groove 111 in the extension direction of the extension protrusion 11, and is used to guide the insertion of the extension protrusion 11 into the connecting protrusion 22; correspondingly, the connecting protrusion 22 is inwardly surrounded by a conical cavity 224, and the connecting protrusion 22 can accommodate the guide cone head 112 through the conical cavity 224. That is, the extension protrusion 11 of the valve plug 10 in this embodiment can use the guide cone head 112 to guide the insertion of the extension protrusion 11 into the connecting protrusion 22 of the diaphragm 20, which can further facilitate the assembly between the extension protrusion 11 and the connecting protrusion 22.

[0051] As shown in the drawings, Figure 1 , Figure 2 and Figure 4 , in an embodiment, the valve plug 10 further comprises a valve plug body 12, and the extension protrusion 11 is arranged at one end of the valve plug body 12 and connected integrally with the valve plug body 12. That is, the valve plug 10 is configured in an integral structure, which can facilitate the manufacturing of the valve plug 10 and reduce the manufacturing cost of the valve plug 10.

[0052] As shown in the drawings, Figure 1 , Figure 2 , in this embodiment, the valve plug assembly 100 further comprises a sealing ring 110, which is sleeved on the end of the valve plug body 12 away from the extension protrusion 11 and abuts against the valve plug body 12. When the valve plug assembly 100 is applied to the gas proportional valve 1000, the valve plug 10 can control the opening / closing of the gas passage 1100 in the gas proportional valve 1000 through the sealing ring 110.

[0053] As shown in the drawings, Figure 2 , Figure 3 , in an embodiment, the connecting protrusion 22 is formed with a first clamping portion 221, which can be clamped with the tray 30 and make the first clamping portion 221 interference fit with the tray 30; wherein the extension protrusion 11 of the valve plug 10 penetrates through the first clamping portion 221. That is, the valve plug assembly 100 of this embodiment can use the extension protrusion 11 to support the first clamping portion 221 on the connecting protrusion 22, and realize the clamping and interference fit of the first clamping portion 221 on the connecting protrusion 22 with the tray 30 at the same time, which can facilitate the assembly of the tray 30 on the connecting protrusion 22. Here, the first clamping portion 221 is arranged on the area of the ring groove 111 on the extension protrusion 11, so that the first clamping portion 221 on the connecting protrusion 22 can be deformed towards the ring groove 111 on the extension protrusion 11, which can facilitate the clamping of the tray 30 to the first clamping portion 221 on the connecting protrusion 22.

[0054] As shown in the drawings, Figure 2 ,Figure 3 As shown in the drawings, in an embodiment, the connecting protrusion 22 is formed with a second clamping portion 222, the second clamping portion 222 is capable of clamping with the fixing seat 40, and the second clamping portion 222 is in interference fit with the fixing seat 40; wherein the extending protrusion 11 penetrates through the second clamping portion 222. That is, the valve core assembly 100 of this embodiment can use the extending protrusion 11 to support the second clamping portion 222 on the connecting protrusion 22, and realize the interference fit of the second clamping portion 222 on the connecting protrusion 22 and the fixing seat 40 at the same time, so as to facilitate the assembly of the fixing seat 40 on the connecting protrusion 22. Here, the second clamping portion 222 is arranged on the extending protrusion 11 in the area of the annular groove 111, so that the second clamping portion 222 on the connecting protrusion 22 can be deformed to the annular groove 111 of the extending protrusion 11, so as to facilitate the clamping of the fixing seat 40 to the second clamping portion 222 of the connecting protrusion 22.

[0055] As shown in the drawings, Figure 1 , Figure 2 In an embodiment, the fixing seat 40 is provided with a plurality of clamping claws 41, the plurality of clamping claws 41 are arranged at intervals along the circumferential direction of the fixing seat 40; wherein the magnet 50 is accommodated in the fixing seat 40 and abuts against and is limited by the plurality of clamping claws 41, so as to realize the assembly of the magnet 50 in the fixing seat 40, so as to facilitate the assembly of the magnet 50 in the fixing seat 40. Here, the magnet 50 can be a magnet, a strong magnet or other magnetic substance. It can be understood that in other embodiments, the magnet 50 can also be assembled in the fixing seat 40 by interference fit, which will not be described here.

[0056] As shown in the drawings, Figure 6 The application also provides a gas proportional valve 1000, which comprises the valve core assembly 100 described above.

[0057] As shown in the drawings, Figure 6 In this embodiment, the gas proportional valve 1000 further comprises a valve body 200, a normally closed electromagnetic valve 300 and an electromagnet assembly 400, the valve core assembly 100 and the electromagnet assembly 400 are installed on one side of the valve body 200, and the normally closed electromagnetic valve 300 is installed on the other side of the valve body 200. When the gas proportional valve 1000 works, the control of the on-off of the sealing ring 110 on the valve core assembly 100 to the valve port 210 on the valve body 200 can be realized by controlling the on-off of the electromagnet assembly 400, and the opening / closing of the gas passage 1100 in the gas proportional valve 1000 can be achieved by using the magnetism between the electromagnet assembly 400 and the magnet 50 on the valve core assembly 100.

[0058] In addition, the application also provides a gas water heater, which comprises the gas proportional valve 1000 described above.

[0059] Any technical features of the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is considered to be within the scope of the present disclosure.

[0060] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation of the present application, and any appropriate changes and variations to the above embodiments within the spirit and principles of the present application are within the scope of the present application.

Claims

1. A spool assembly for use in a gas proportional valve (1000), characterized in that, The valve core assembly (100) comprises: a valve plug (10) comprising an extension column (11); a skin film (20) comprising a skin film body (21) and a connecting protrusion (22), the skin film body (21) is arranged on the periphery of the connecting protrusion (22) and connected with the connecting protrusion (22) as an integral structure, the connecting protrusion (22) is sleeved on the extension column (11) and connected with the extension column (11); a tray (30) arranged on one side of the skin film body (21) and in interference fit with the connecting protrusion (22), used for supporting the skin film body (21); a fixed seat (40) arranged on the other side of the skin film body (21) and in interference fit with the connecting protrusion (22); a magnet (50) installed on the fixed seat (40).

2. The valve trim assembly of claim 1, wherein, A first clamping part (221) is formed on the connecting protrusion (22), which can be clamped with the tray (30) and make the first clamping part (221) in interference fit with the tray (30); wherein the extension column (11) passes through the first clamping part (221).

3. The valve trim assembly of claim 1, wherein, A second clamping part (222) is formed on the connecting protrusion (22), which can be clamped with the fixed seat (40) and make the second clamping part (222) in interference fit with the fixed seat (40); wherein the extension column (11) passes through the second clamping part (222).

4. The valve trim assembly of claim 1, wherein, The extension column (11) is connected with the connecting protrusion (22) in a clamped manner.

5. The valve trim assembly of claim 4, wherein, A ring groove (111) is opened on the extension column (11), a third clamping part (223) is formed on the connecting protrusion (22), which can be clamped with the ring groove (111).

6. The valve trim assembly of claim 5, wherein, A guide cone head (112) is formed on the extension column (11), which is arranged on one side of the ring groove (111) in the extension direction of the extension column (11), used for guiding the extension column (11) to be inserted into the connecting protrusion (22); wherein the connecting protrusion (22) inwardly surrounds to form a tapered cavity (224), and the connecting protrusion (22) can accommodate the guide cone head (112) through the tapered cavity (224).

7. The valve trim assembly of claim 1, wherein, The valve plug (10) further comprises a valve plug body (12), the extension column (11) is arranged on one end of the valve plug body (12) and connected with the valve plug body (12) as an integral structure; wherein the valve core assembly (100) further comprises a sealing ring (110), the sealing ring (110) is sleeved on the end of the valve plug body (12) away from the extension column (11) and abuts against the valve plug body (12) for limiting.

8. The valve trim assembly of claim 1, wherein, A plurality of clamping claws (41) are arranged on the fixed seat (40) and spaced along the circumferential direction of the fixed seat (40); wherein the magnet (50) is accommodated in the fixed seat (40) and abuts against the plurality of clamping claws (41) for limiting.

9. A gas proportional valve characterized by The valve core assembly (100) according to any one of claims 1 to 8.

10. A gas water heater, characterized by, The gas proportional valve (1000) according to claim 9.

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