Automatic temperature control electric control gas valve with ever-burning fire

Abstract

The utility model relates to an automatic temperature control electric control gas valve with ever-burning fire, which comprises a valve main body, a valve cover, a valve core, an ejector rod, a spring, a small valve core, a valve, an electromagnetic valve assembly and an electromagnetic switch valve, and the valve main body comprises a valve core cavity, an ever-burning fire pipe, an electric control gas channel, an electromagnetic valve seat, an electromagnetic valve cavity and a gas inlet interface, the electromagnetic valve seat comprises an air inlet cavity, a main air outlet pipe, a switch valve element seat, a sub air duct and a small valve element cavity. The valve element comprises a driving cavity, an air inlet and outlet cavity and a guide hole. The electromagnetic valve assembly is arranged in the electromagnetic valve cavity, the electromagnetic valve element is matched with the electromagnetic valve element seat, the valve element is arranged in the valve element cavity, and the ejector rod penetrates through the spring and the guide hole and extends into the electromagnetic valve element seat; the electromagnetic switch valve is arranged on the electromagnetic valve seat, and a switch valve core of the electromagnetic switch valve is matched with the switch valve core seat; the valve cover is buckled with the valve element cavity, the valve rod is rotationally matched with a valve rod channel of the valve cover, and the end of the valve rod extends into the driving cavity to be matched with the ejector rod. Due to the design and the layout, the valve body is integrally formed, and compared with the prior art, the valve body is small in size.

Description

Technical Field

[0001] The utility model relates to a gas valve, in particular to an automatic temperature-controlled electric-controlled gas valve with a pilot flame. Background Art

[0002] Currently, the existing technology, Chinese Patent 201410469795.0, describes an automatic temperature-controlled gas valve, comprising a gas source inlet, a solenoid valve, a pilot nozzle, an electrically controlled valve, and at least one main flame outlet. The solenoid valve comprises a solenoid valve body and a solenoid valve seat. The gas source inlet serves as the air inlet of the solenoid valve seat, while the pilot nozzle and the electrically controlled valve's air inlets are respectively connected to the solenoid valve seat's air outlet. The solenoid valve body controls the connection or closing of its valve seat's air inlet and outlet. The main flame outlet serves as the air outlet of the electrically controlled valve, which is used to control the opening and closing of the main flame outlet and the amount of gas discharged. The operation of the solenoid valve and the electrically controlled valve is controlled by a temperature sensing feedback device. Problems exist: the structure is complex, the valve body cannot be integrally molded, and it is bulky. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic temperature-controlled electric-controlled gas valve with a pilot flame, which has the characteristics of a valve body being formed in one piece and having a small volume.

[0004] The utility model is realized as follows: an automatic temperature-controlled electric gas valve with a pilot flame, which is special in that it includes a valve body, a valve cover, a valve core, a push rod, a spring, a small valve core, a valve, a solenoid valve assembly and a solenoid switch valve.

[0005] The valve body is integrally formed and includes a valve core cavity, a pilot-fire tube, an electrically controlled airway, a solenoid valve seat, a solenoid valve cavity located at the end of the valve core cavity, and an air inlet port. The valve core cavity, the pilot-fire tube, the electrically controlled airway, the solenoid valve seat, and the solenoid valve cavity are located in the same plane, and the air inlet port is perpendicular to the plane. The pilot-fire tube and the electrically controlled airway are located on either side of the valve core cavity, respectively. The air inlet port is connected to the solenoid valve cavity, and the solenoid valve core seat on the solenoid valve cavity is connected to the valve core cavity.

[0006] The solenoid valve seat includes an air inlet cavity, a main air outlet pipe, a switch valve core seat, a sub-air duct and a small valve core cavity. The switch valve core seat is arranged in the air inlet cavity. The air inlet cavity, the switch valve core seat and the main air outlet pipe are connected in sequence. The small valve core cavity is connected to the air inlet cavity. The sub-air duct is connected to the small valve core cavity and the main air outlet pipe.

[0007] The valve core includes a driving cavity with an opening at one end, an air inlet and outlet cavity with an opening at the other end, and a guide hole. The air inlet and outlet cavity is provided with an arc-shaped pilot flame air hole and a main air hole.

[0008] The solenoid valve assembly is arranged in the solenoid valve cavity, the solenoid valve core cooperates with the solenoid valve core seat, the valve core is arranged in the valve core cavity, and the push rod passes through the spring and the guide hole and extends into the solenoid valve core seat; the solenoid switch valve is arranged on the solenoid valve seat, and the switch valve core of the solenoid switch valve cooperates with the switch valve core seat; the valve cover is buckled with the valve core cavity, the valve stem and the valve stem channel of the valve cover are rotated and matched, and the end extends into the drive cavity and cooperates with the push rod.

[0009] The automatic temperature-controlled electrically controlled gas valve with a pilot flame is special in that the electromagnetic switch valve and the valve cover on the electromagnetic valve seat are located on one side.

[0010] The automatic temperature-controlled electrically controlled gas valve with a pilot flame is special in that the pilot flame tube comprises a transverse portion and a longitudinal portion, the transverse portion is connected to and perpendicular to the valve core cavity, and the longitudinal portion is parallel to the valve core cavity.

[0011] The special feature of the automatic temperature-controlled electric gas valve with a pilot flame is that the small valve core cavity includes a frustum-shaped valve core seat cavity, a gas guide cavity and a rotating cavity portion;

[0012] The small valve core includes a truncated cone core, a rod, a sealing rotating part, an axial air hole and a radial air hole;

[0013] The rotating cavity part is rotationally matched with the sealing rotating part, and the seal and the frustum-shaped valve core are matched with the frustum-shaped valve core seat cavity.

[0014] The special feature of the automatic temperature-controlled electric gas valve with a pilot flame is that the sub-airway includes a vertical sub-airway and a horizontal sub-airway,

[0015] The longitudinal sub-airway is perpendicular to and communicated with the small valve core cavity, and the transverse sub-airway is perpendicular to and communicated with the main air outlet pipe.

[0016] The utility model discloses an automatic temperature-controlled electric-controlled gas valve with a pilot flame. The valve body adopts such a design and layout to be integrally formed, and compared with the prior art, the valve has a smaller volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the present utility model.

[0018] Figure 2 yes Figure 1 A-A view.

[0019] Figure 3 yes Figure 1 B-B view.

[0020] Figure 4 yes Figure 1 C-C view of .

[0021] Figure 5It is a cross-sectional view of the small valve core of the utility model.

[0022] Figure 6 This is one of the three-dimensional exploded views of the present invention.

[0023] Figure 7 This is the second three-dimensional exploded view of the present invention. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0026] like Figure 1 As shown, an automatic temperature-controlled electric gas valve with a pilot flame is characterized by comprising a valve body 1, a valve cover 2, a valve core 3, a push rod 41, a spring 42, a small valve core 5, a valve stem 6, a solenoid valve assembly 7 and a solenoid switch valve 8.

[0027] The valve body 1 includes a valve core chamber 11, a long-fire tube 12, an electric-controlled airway 13, a solenoid valve seat 14, a solenoid valve chamber 15 and an air inlet interface 16 provided at the end of the valve core chamber 11. The valve core chamber 11, the long-fire tube 12, the electric-controlled airway 13, the solenoid valve seat 14 and the solenoid valve chamber 15 are in the same plane, and the air inlet interface 16 is perpendicular to the plane; the long-fire tube 12 and the electric-controlled airway 13 are respectively located on both sides of the valve core chamber, the air inlet interface 16 is connected to the solenoid valve chamber 15, and the solenoid valve core seat 151 on the solenoid valve chamber 15 is connected to the valve core chamber 11; the valve body 1 is made of one piece.

[0028] The solenoid valve seat 14 includes an air inlet chamber 141, a main air outlet pipe 142, a switch valve core seat 143, a sub-air passage 144, and a small valve core chamber 145. The switch valve core seat 143 is arranged in the air inlet chamber. The air inlet chamber, the switch valve core seat and the main air outlet pipe 142 are connected in sequence. The small valve core chamber is connected to the air inlet chamber. The sub-air passage is connected to the small valve core chamber and the main air outlet pipe 142.

[0029] The valve core 3 includes a driving chamber 31 with an opening at one end, an air inlet and outlet chamber 32 with an opening at the other end, and a guide hole 33 provided on a partition between the driving chamber and the air inlet and outlet chamber 32. The air inlet and outlet chamber 32 is provided with an arc-shaped pilot flame air hole 321 and a main air hole 322.

[0030] The solenoid valve assembly 7 is arranged in the solenoid valve chamber 15, the solenoid valve core 71 cooperates with the solenoid valve core seat 151, the valve core 3 is arranged in the valve core chamber 11, and the push rod 41 passes through the spring 42 and the guide hole 33 and extends into the solenoid valve core seat 151; the solenoid switch valve 8 is arranged on the solenoid valve seat 14, and the switch valve core 81 of the solenoid switch valve 8 cooperates with the switch valve core seat 143; the valve cover 2 is buckled with the valve core chamber 11, and the valve stem 6 is rotatably matched with the valve stem channel of the valve cover 2 and the end extends into the drive chamber 31 and cooperates with the push rod 41.

[0031] The electromagnetic switch valve 8 and the valve cover 2 on the electromagnetic valve seat 14 are located on one side.

[0032] As a further improvement of the present invention: the long open fire tube 12 includes a transverse portion 121 and a longitudinal portion 122 , the transverse portion 121 is connected to and perpendicular to the valve core cavity 11 , and the longitudinal portion 122 is parallel to the valve core cavity 11 .

[0033] The small valve core cavity 145 includes a frustum-shaped valve core seat cavity 1451, an air guide cavity 1452 and a sealing cavity portion 1453;

[0034] The small valve core 5 includes a frustoconical core 51, a stem 52, a sealing rotating portion 53, an axial air hole 54, and radial air holes 55. The air inlet end of the axial air hole 54 is located at the suspended end of the frustoconical core 51, and the radial air holes 55 are provided on the stem 52. The axial air holes 54 and the radial air holes 55 are connected.

[0035] The sealing rotating portion 53 rotates and seals with the sealing cavity portion 1453 , and the frustum-shaped valve core 51 cooperates with the frustum-shaped valve core seat cavity 1451 ;

[0036] With this structure, the amount of gas in the main gas outlet pipe in the ignition state can be adjusted. In the minimum gas state, the frustum-conical core 51 and the frustum-conical valve core seat cavity 1451 are engaged, and the gas flows through the air inlet cavity 141, the frustum-conical valve core seat cavity 1451, the axial air hole 54, and the radial air hole 55, and then from the radial air hole 55 to the air guide cavity 1452 and the sub-air passage 144 into the main gas outlet pipe 142.

[0037] By rotating the small valve core, a gap appears between the frustum-shaped core portion 51 and the frustum-shaped valve core seat cavity 1451, thereby realizing gas volume regulation; the gas enters the sub-air passage 144 from the frustum-shaped valve core seat cavity 1451 and the gas guide cavity 1452, and then enters the main gas outlet pipe.

[0038] like Figure 1As shown, the sub-airway 144 includes a longitudinal sub-airway 1441 and a transverse sub-airway 1442 and is perpendicular to each other.

[0039] The longitudinal sub-airway 1441 is perpendicular to and communicates with the small valve core cavity 145, and the transverse sub-airway 1442 is perpendicular to and communicates with the main air outlet pipe. With such a layout, machining and drilling are convenient and the processing efficiency is high.

[0040] When the utility model is used, Figure 1 、 Figure 6 In this state, the valve stem 6 is pressed, the valve stem drives the push rod 41 and compresses the spring 42, the push rod 41 drives the solenoid valve core 71 of the solenoid valve assembly 7 and leaves the solenoid valve core seat 151; the gas enters the inlet and outlet air cavity 32 of the valve core through the air inlet interface, the solenoid valve cavity, and the solenoid valve core seat 151; the valve stem drives the valve core 3 to rotate 90° counterclockwise, and the gas entering and exiting the air cavity 32 enters the long-fire tube 12 through the arc-shaped air guide hole 321; the valve stem drives the valve core 3 to rotate 180° counterclockwise, and the gas entering and exiting the air cavity 32 enters the main air outlet pipe through the main air hole 322, the electric control air channel 13, and the solenoid valve seat 14, while maintaining the long-fire air outlet.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic temperature-controlled, electrically controlled gas valve with a pilot flame, characterized in that: Including valve body, valve cover, valve core, push rod, spring, small valve core, valve, solenoid valve assembly and solenoid switch valve, The valve body is integrally formed and includes a valve core cavity, a pilot-fire tube, an electrically controlled airway, a solenoid valve seat, a solenoid valve cavity located at the end of the valve core cavity, and an air inlet port. The valve core cavity, the pilot-fire tube, the electrically controlled airway, the solenoid valve seat, and the solenoid valve cavity are located in the same plane, and the air inlet port is perpendicular to the plane. The pilot-fire tube and the electrically controlled airway are located on either side of the valve core cavity, respectively. The air inlet port is connected to the solenoid valve cavity, and the solenoid valve core seat on the solenoid valve cavity is connected to the valve core cavity. The solenoid valve seat includes an air inlet cavity, a main air outlet pipe, a switch valve core seat, a sub-air duct and a small valve core cavity. The switch valve core seat is arranged in the air inlet cavity. The air inlet cavity, the switch valve core seat and the main air outlet pipe are connected in sequence. The small valve core cavity is connected to the air inlet cavity. The sub-air duct is connected to the small valve core cavity and the main air outlet pipe. The valve core includes a driving cavity, an air inlet and outlet cavity with one end open, and a guide hole. The air inlet and outlet cavity is provided with an arc-shaped pilot flame air hole and a main air hole. The solenoid valve assembly is arranged in the solenoid valve cavity, the solenoid valve core cooperates with the solenoid valve core seat, the valve core is arranged in the valve core cavity, and the push rod passes through the spring and the guide hole and extends into the solenoid valve core seat; the solenoid switch valve is arranged on the solenoid valve seat, and the switch valve core of the solenoid switch valve cooperates with the switch valve core seat; the valve cover is buckled with the valve core cavity, the valve stem and the valve stem channel of the valve cover are rotated and matched, and the end extends into the drive cavity and cooperates with the push rod.

2. The automatic temperature-controlled electrically controlled gas valve with a pilot flame according to claim 1, characterized in that: The electromagnetic switch valve and the valve cover on the electromagnetic valve seat are located on one side.

3. The automatic temperature-controlled electrically controlled gas valve with a pilot flame according to claim 1, characterized in that: The long open fire tube includes a transverse portion and a longitudinal portion, the transverse portion is communicated with and perpendicular to the valve core cavity, and the longitudinal portion is parallel to the valve core cavity.

4. The automatic temperature-controlled electrically controlled gas valve with a pilot flame according to claim 1, characterized in that: The small valve core cavity includes a frustum-shaped valve core seat cavity, an air guide cavity and a rotating cavity portion; The small valve core includes a truncated cone core, a rod, a sealing rotating part, an axial air hole and a radial air hole; The rotating cavity part is rotationally matched with the sealing rotating part, and the seal and the frustum-shaped valve core are matched with the frustum-shaped valve core seat cavity.

5. An automatic temperature-controlled, electrically controlled gas valve with a pilot flame according to claim 1, 2, 3 or 4, characterized in that: The sub-airway includes a longitudinal sub-airway and a transverse sub-airway and is perpendicular to the longitudinal sub-airway. The longitudinal sub-airway is perpendicular to and communicated with the small valve core cavity, and the transverse sub-airway is perpendicular to and communicated with the main air outlet pipe.

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