Moving rod and valve element integrated electromagnetic valve for water path control of gas water heater

Abstract

The invention discloses a moving rod and valve element integrated electromagnetic valve for water path control of a gas water heater. The moving rod and valve element integrated electromagnetic valve comprises an electromagnetic valve body with a water inlet and a water outlet. The water inlet and the water outlet are arranged in parallel, and a vertical valve port is arranged between the water inlet and the water outlet; the valve port is provided with a valve core integrated with the movable rod; the valve element integrated with the movable rod is made of corrosion-resistant metal and comprises a columnar movable rod structure, a first head-removed conical surface, a second head-removed conical surface and a cylindrical transition section, wherein the first head-removed conical surface and the second head-removed conical surface are coaxially arranged with the movable rod structure, and the cylindrical transition section is located between the first head-removed conical surface and the second head-removed conical surface. The circular bottom surface of the first head-removed conical surface and the circular bottom surface of the second head-removed conical surface are oppositely arranged and are respectively connected with the two ends of the transition section, and the gradually reduced conical surfaces face one side of the water inlet along the valve port; and the gradually reduced conical surface of the second head-removed conical surface faces one side of the water outlet along the valve port. The defects in the prior art are overcome, and the stability and durability of the sealing structure of the waterway control valve of the gas water heater are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of gas water heater manufacturing, and in particular to a solenoid valve with a movable rod and a valve core integrated for controlling a water channel of a gas water heater. Background Art

[0002] The solenoid valve of the gas water heater water circuit is a commonly used component to control the on-off of the gas water heater water circuit. Its performance directly affects the safety, reliability and service life of the water heater.

[0003] However, the valve core structure of the existing gas water heater water circuit solenoid valve mostly adopts the form of rubber seal and metal valve seat, so there are the following shortcomings in practical application:

[0004] First, the solenoid valve cannot open and close normally under high water pressure and large flow conditions;

[0005] Secondly, the solenoid valve that can open the valve under high water pressure conditions cannot guarantee the flow stability;

[0006] Finally, the rubber valve core is prone to aging and damage.

[0007] Therefore, how to overcome the defects of the prior art and enhance the stability and durability of the sealing structure of the water circuit control valve of the gas water heater has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0008] In view of the above-mentioned defects of the prior art, the present invention provides an integrated solenoid valve with a movable rod and a valve core for controlling the water circuit of a gas water heater, the purpose of which is to overcome the defects of the prior art and enhance the stability and durability of the sealing structure of the water circuit control valve of the gas water heater.

[0009] To achieve the above-mentioned purpose, the present invention discloses a solenoid valve with a movable rod and a valve core integrated for controlling a water circuit of a gas water heater, comprising a solenoid valve body with a water inlet and a water outlet.

[0010] Wherein, the water inlet and the water outlet are arranged in parallel, and a valve port is arranged between them and is perpendicular to the water inlet and the water outlet;

[0011] The valve port is provided with a valve core integrated with the moving rod;

[0012] The valve core integrated with the moving rod is made of corrosion-resistant metal, and includes a columnar moving rod structure, a first headless conical surface and a second headless conical surface coaxially arranged with the moving rod structure, and a cylindrical transition section located between the first headless conical surface and the second headless conical surface;

[0013] The circular bottom surface of the first truncated conical surface and the circular bottom surface of the second truncated conical surface are arranged opposite to each other and are respectively connected to two ends of the transition section, and the gradually narrowing conical surface is along the valve opening toward one side of the water inlet;

[0014] The gradually narrowing conical surface of the second truncated conical surface is along the valve opening toward the water outlet;

[0015] When the valve core integrated with the moving rod moves to the limit along the valve port axis along the valve port toward the water inlet, the transition section will not completely slide from the valve core to the water inlet;

[0016] When the valve core integrated with the moving rod moves to the limit along the valve port axis along the valve port toward the water outlet, the transition section completely slides from the valve core to the water outlet, and a water-passing gap is formed between the first truncated conical surface and the valve port.

[0017] Preferably, it also includes an electromagnetic drive device arranged in the axial direction of the valve port and located outside the water inlet or the water outlet, and a spring, wherein the valve core integrated with the moving rod is driven to move along the valve port by the electromagnetic drive device, and the valve core integrated with the moving rod is rebounded by the spring after the electromagnetic drive device loses power.

[0018] More preferably, a support frame is provided outside the water inlet or the water outlet, at a position facing away from the electromagnetic drive device;

[0019] The support frame is provided with a sliding hole at a position corresponding to the valve core integrated with the moving rod;

[0020] The sliding hole is a blind hole, which matches with a corresponding end of the valve core integrated with the movable rod, so that the corresponding end of the valve core integrated with the movable rod can reciprocate in the sliding hole.

[0021] Preferably, the water inlet is provided with a bypass.

[0022] Preferably, the angle formed between the generatrix of the first truncated conical surface and the axis is 45 degrees.

[0023] Preferably, the angle formed between the generatrix of the second truncated conical surface and the axis is 30 degrees.

[0024] Beneficial effects of the present invention:

[0025] The application of the present invention overcomes the defects that the sealing structure of the existing gas water heater water circuit control electromagnetic valve is mostly in the form of a rubber seal and a metal valve seat, and the rubber seal is prone to aging and corrosion and has poor durability.

[0026] The present invention integrates the moving rod and the valve core into one part, which is made of corrosion-resistant metal to enhance the stability and durability of the sealing structure.

[0027] The valve core part of the present invention adopts a conical structure moving rod and a main body valve port matching structure, which greatly enhances the opening and closing valve ability of the solenoid valve and improves the stability of the solenoid valve at large water flow rates, so that the solenoid valve can be applied to large flow specification water heaters.

[0028] The support frame with the sliding hole of the present invention axially fixes the moving rod structure to prevent the moving rod structure from tilting and causing the valve to be unable to close, thereby enhancing the operating stability of the solenoid valve.

[0029] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of an embodiment of the present invention is shown.

[0031] Figure 2 A schematic structural diagram of a valve core integrated with a moving rod in one embodiment of the present invention is shown. DETAILED DESCRIPTION

[0032] Example

[0033] like Figure 1 and Figure 2 As shown, a solenoid valve with an integrated moving rod and valve core for controlling the water circuit of a gas water heater comprises a solenoid valve body 3 with a water inlet 1 and a water outlet 2.

[0034] The water inlet 1 and the water outlet 2 are arranged in parallel, and a valve port 4 is arranged between them and is perpendicular to the water inlet 1 and the water outlet 2;

[0035] The valve port 4 is provided with a valve core 5 integrated with the moving rod;

[0036] The valve core 5 integrated with the moving rod is made of corrosion-resistant metal, and includes a columnar moving rod structure 51, a first headless conical surface 52 and a second headless conical surface 53 coaxially arranged with the moving rod structure 51, and a cylindrical transition section 54 located between the first headless conical surface 52 and the second headless conical surface 53;

[0037] The angle between the generatrix of the first truncated conical surface 52 and the axis is 45 degrees;

[0038] The angle between the generatrix of the second truncated conical surface 53 and the axis is 30 degrees;

[0039] The circular bottom surface of the first truncated conical surface 52 and the circular bottom surface of the second truncated conical surface 53 are arranged opposite to each other and are respectively connected to the two ends of the transition section 54. The gradually narrowing conical surface is along the valve port 4 toward the water inlet 1 side.

[0040] The second truncated conical surface 53 gradually shrinks along the valve port 4 toward the water outlet 2;

[0041] When the valve core 5 integrated with the moving rod moves to the limit along the axis of the valve port 4 toward the water inlet 1 along the valve port 4, the transition section 54 will not completely slide from the valve core 5 to the water inlet 1;

[0042] When the valve core 5 integrated with the movable rod moves to the limit along the axis of the valve port 4 toward the water outlet 2 along the valve port 4, the transition section 54 completely slides from the valve core 5 to the water outlet 2, and a water-passing gap is formed between the first truncated conical surface 52 and the valve port 4.

[0043] In some embodiments, it also includes an electromagnetic drive device 6 arranged in the axial direction of the valve port 4, located outside the water inlet 1 or the water outlet 2, and a spring 7. The electromagnetic drive device 6 drives the valve core 5 integrated with the moving rod to move along the valve port 4, and the spring 7 rebounds the valve core 5 integrated with the moving rod after the electromagnetic drive device 6 loses power.

[0044] In some embodiments, a support frame 8 is provided outside the water inlet 1 or the water outlet 2, facing away from the electromagnetic drive device 6;

[0045] The support frame 8 is provided with a sliding hole 81 at a position corresponding to the valve core 5 integrated with the moving rod;

[0046] The sliding hole 81 is a blind hole, which matches with a corresponding end of the valve core 5 integrated with the movable rod, so that the corresponding end of the valve core 5 integrated with the movable rod can reciprocate in the sliding hole 71 .

[0047] In some embodiments, the water inlet 1 is provided with a bypass 11 .

[0048] In some embodiments, the angle between the generatrix of the first truncated conical surface 52 and the axis is 45 degrees.

[0049] In some embodiments, the angle between the generatrix of the second truncated conical surface 53 and the axis is 30 degrees.

[0050] In actual application, when the electromagnetic drive device 6 is not powered on, the valve core 5 integrated with the moving rod and the valve port 4 are in a normally open state with a gap therebetween. When powered on, an electromagnetic force is generated to attract the valve core 5 integrated with the moving rod to move and cooperate with the valve port 4 to close the valve port 4.

[0051] The valve core 5 integrated with the moving rod integrates the moving rod and the valve core of the existing solenoid valve into a new part. The sealing part is designed to be conical in shape, which can reduce the resistance of water flow and make the solenoid valve easier to close. At the same time, there is a gap between the moving rod structure 51 and the valve port 4, which enhances the valve closing ability of the solenoid valve. In addition, the support frame 8 with the sliding hole 71 axially fixes the moving rod structure 51 to prevent the moving rod structure 51 from tilting and the inability to close the valve.

[0052] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A solenoid valve with an integrated moving rod and valve core for controlling the water circuit of a gas water heater, comprising a solenoid valve body (3) with a water inlet (1) and a water outlet (2); characterized in that: The water inlet (1) and the water outlet (2) are arranged in parallel, and a valve port (4) is arranged between them and is perpendicular to the water inlet (1) and the water outlet (2); The valve port (4) is provided with a valve core (5) integrated with the moving rod; The valve core (5) integrated with the moving rod is made of corrosion-resistant metal, and comprises a columnar moving rod structure (51), a first headless conical surface (52), a second headless conical surface (53) coaxially arranged with the moving rod structure (51), and a cylindrical transition section (54) located between the first headless conical surface (52) and the second headless conical surface (53); The circular bottom surface of the first truncated conical surface (52) and the circular bottom surface of the second truncated conical surface (53) are arranged opposite to each other and are respectively connected to the two ends of the transition section (54), and the gradually shrinking conical surface is along the valve port (4) toward one side of the water inlet (1); The gradually narrowing conical surface of the second truncated conical surface (53) is along the valve opening (4) toward one side of the water outlet (2); When the valve core (5) integrated with the moving rod moves to the limit along the axis of the valve port (4) toward the water inlet (1) along the valve port (4), the transition section (54) will not completely slide from the valve core (5) to the water inlet (1); When the valve core (5) integrated with the moving rod moves to the limit along the axis of the valve port (4) toward the water outlet (2) along the valve port (4), the transition section (54) completely slides from the valve core (5) to the water outlet (2), and a water-passing gap is formed between the first truncated conical surface (52) and the valve port (4).

2. The electromagnetic valve with integrated moving rod and valve core for controlling the water circuit of a gas water heater according to claim 1, characterized in that: It also includes an electromagnetic drive device (6) arranged in the axial direction of the valve port (4) and located outside the water inlet (1) or the water outlet (2), and a spring (7), wherein the electromagnetic drive device (6) drives the valve core (5) integrated with the moving rod to move along the valve port (4), and the spring (7) rebounds the valve core (5) integrated with the moving rod after the electromagnetic drive device (6) loses power.

3. The electromagnetic valve with integrated moving rod and valve core for controlling the water circuit of a gas water heater according to claim 2, characterized in that: A support frame (8) is provided on the outside of the water inlet (1) or the water outlet (2), at a position facing away from the electromagnetic drive device (6); The support frame (8) is provided with a sliding hole (81) at a position corresponding to the valve core (5) integrated with the moving rod; The sliding hole (81) is a blind hole, matched with a corresponding end of the valve core (5) integrated with the movable rod, so that the corresponding end of the valve core (5) integrated with the movable rod can reciprocate in the sliding hole (71).

4. The electromagnetic valve with integrated moving rod and valve core for controlling the water circuit of a gas water heater according to claim 1, characterized in that: The water inlet (1) is provided with a bypass (11).

5. The electromagnetic valve with integrated moving rod and valve core for controlling the water circuit of a gas water heater according to claim 1, characterized in that: The included angle between the generatrix of the first truncated conical surface (52) and the axis is 45 degrees.

6. The electromagnetic valve with integrated moving rod and valve core for controlling the water circuit of a gas water heater according to claim 1, characterized in that: The included angle between the generatrix of the second truncated conical surface (53) and the axis is 30 degrees.

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