Valve ever-burning fire device

Abstract

The utility model discloses a valve ever-burning fire device which comprises an ever-burning fire assembly and a valve body assembly, the ever-burning fire assembly comprises a support, an ever-burning fire burner and an ignition needle, the support is provided with a gas baffle, and the gas baffle, the ignition needle and the ever-burning fire burner are sequentially arranged at intervals in the left-right direction; the valve body assembly comprises a valve body and an adjusting screw, the valve body is provided with a fuel gas channel and an ever-burning fire output channel, and the adjusting screw is rotatably installed on the valve body and extends into the ever-burning fire output channel; according to the pilot flame burner, the adjusting screw is arranged on the pilot flame output channel, so that the flow of the pilot flame output channel can be adjusted, gas conveyed to the pilot flame burner can be ignited by the ignition needle, the success rate of ignition is improved, and the gas baffle is arranged on one side of the ignition needle, so that the ignition efficiency is improved. And the gas is fully mixed with the air under the blocking of the gas baffle, so that the ignition needle can ignite the gas more easily, and the ignition success rate of the ignition needle is further improved.

Description

Technical Field

[0001] The utility model relates to the field of gas valves, in particular to a valve permanent flame device. Background Art

[0002] The valve body of the gas valve is provided with a pilot flame channel connected to the pilot flame assembly, but the flow of the pilot flame channel cannot be adjusted, and thus the gas concentration sprayed from the burner of the pilot flame assembly cannot be adjusted. If the gas concentration is low, this may cause the pilot flame assembly to fail multiple times during ignition. In addition, the pilot flame assembly itself lacks an optimized design to improve the ignition success rate. Therefore, the existing gas valve may require multiple attempts during ignition. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a valve long-open flame device.

[0004] According to the first aspect of the present invention, the valve pilot flame device comprises a pilot flame assembly and a valve body assembly, the pilot flame assembly comprises a bracket, a pilot flame burner and an ignition needle, the bracket has an air baffle, the pilot flame burner and the ignition needle are both mounted on the bracket, the air baffle, the ignition needle and the pilot flame burner are sequentially spaced apart along the left and right directions of the bracket, the pilot flame burner has a gas supply channel and a gas inlet and a gas outlet connected to the gas supply channel, the gas outlet is arranged on the pilot flame burner on the side wall, the air baffle and the ignition needle are arranged opposite to the gas outlet, and the extension height of the air baffle in the up and down direction at least partially coincides with the height of the gas outlet; the valve body assembly includes a valve body, an adjusting screw and a valve core, the valve body has a gas channel and a long-fire output channel, the long-fire output channel is respectively connected to the gas channel and the gas inlet, the adjusting screw is rotatably mounted on the valve body and extends into the long-fire output channel; the valve body assembly is used to control the on-off and flow rate of the gas in the gas channel.

[0005] The valve ever-burning flame device according to the embodiment of the utility model has at least the following technical effects: by providing an adjusting screw on the ever-burning flame output channel, the flow rate of the ever-burning flame output channel can be adjusted, thereby ensuring that the gas delivered to the ever-burning flame burner can be ignited by the ignition needle, thereby improving the success rate of ignition, and by providing an air baffle plate on the side of the ignition needle away from the ever-burning flame burner, when the gas is sprayed out of the gas outlet, the gas is blocked by the air baffle plate, and a vortex is formed between the air baffle plate and the ever-burning flame burner, so that the gas and air are fully mixed, making it easier for the ignition needle to ignite the gas, thereby further improving the ignition success rate of the ignition needle.

[0006] According to some embodiments of the present invention, the ignition needle includes a needle body, the needle body includes a vertical section and an inclined section, the lower end of the inclined section is connected to the upper end of the vertical section, and the inclined section is inclined toward the direction close to the long flame burner.

[0007] According to some embodiments of the present invention, the distance between the upper end of the ignition needle and the air baffle is defined as L1, and the distance between the upper end of the ignition needle and the gas ejection port is defined as L2, and L1>L2.

[0008] According to some embodiments of the utility model, the pilot flame assembly also includes a mounting frame, which is detachably mounted on the bracket, and the mounting frame includes a vertical plate and a horizontal plate, the vertical plate is mounted on the rear side of the pilot flame burner and the rear side of the ignition needle, the horizontal plate is connected to the upper end of the vertical plate and is located above the pilot flame burner and above the ignition needle, and the air baffle is connected to the left side of the horizontal plate.

[0009] According to some embodiments of the utility model, a connecting hole is provided at the position of the adjusting screw corresponding to the ever-open flame output channel, and the two ends of the connecting hole are respectively connected with the air inlet and the air outlet of the ever-open flame output channel; when the outer side of the adjusting screw is in contact and sealed with the ever-open flame output channel, the adjusting screw separates the ever-open flame output channel into a first connecting channel and a second connecting channel, and the first connecting channel can be connected with the second connecting channel through the connecting hole.

[0010] According to some embodiments of the present invention, the gas passage includes a first mounting hole for mounting the valve core, the valve body has a second mounting hole arranged on the same side as the first mounting hole, and the adjusting screw is installed in the second mounting hole.

[0011] According to some embodiments of the present invention, the adjusting screw can pass through the first communicating channel and can extend into the second communicating channel to contact and seal therewith.

[0012] According to some embodiments of the present invention, the inlet end of the second connecting channel has a circular arc chamfer, and the end of the adjusting screw close to the second connecting channel has a conical surface for abutting against the circular arc chamfer.

[0013] According to some embodiments of the present utility model, the valve body assembly also includes a solenoid valve, the gas channel also includes an air intake chamber for installing the solenoid valve, the valve body has a gas input port connected to the air intake chamber and a gas output port connected to the first mounting hole, the gas output port and the gas input port are respectively located at the upper and lower ends of the valve body, and the gas input port and the gas output port partially overlap and are connected in the upper and lower directions.

[0014] According to some embodiments of the present utility model, the gas input port has an inclined communication section inclined toward the solenoid valve, and the gas input port is connected with the air intake chamber through the inclined communication section.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a valve pilot light device from a certain perspective;

[0018] Figure 2 is a cross-sectional view of a pilot flame assembly;

[0019] Figure 3 is a cross-sectional view of a valve body assembly at a certain viewing angle;

[0020] Figure 4 It is the left view of the pilot flame assembly;

[0021] Figure 5 It is a structural schematic diagram of the valve pilot flame device from another perspective;

[0022] Figure 6 It is a structural schematic diagram of the pilot flame assembly;

[0023] Figure 7 It is a structural schematic diagram of the valve body assembly;

[0024] Figure 8 is a cross-sectional view of the valve body assembly from another perspective;

[0025] Fig. 9 for Figure 3 The enlarged view of point A in the middle;

[0026] Fig.10 It is a schematic diagram of the structure of the adjusting screw;

[0027] Fig.11 is a cross-sectional view of the adjusting screw;

[0028] Fig.12 It is a schematic diagram of the structure of the valve body;

[0029] Fig.13 This is a schematic diagram of the structure in which the pilot flame assembly is installed on the burner.

[0030] Reference numerals: pilot flame assembly 100, bracket 110, air baffle 111, pilot flame burner 120, gas supply channel 121, gas inlet 122, gas outlet 123, ignition needle 130, needle body 131, vertical section 132, inclined section 133, mounting frame 140, vertical plate 141, transverse plate 142, valve body assembly 200, valve body 210, second mounting hole 211, gas inlet 212, inclined connecting section 2121, gas outlet 213, adjusting screw 220, connecting Hole 221, first hole section 2211, second hole section 2212, conical surface 222, gas channel 230, first mounting hole 231, air intake chamber 232, long-open flame output channel 240, air inlet 241, air outlet 242, first connecting channel 243, second connecting channel 244, arc chamfer 2441, first connecting section 2442, second connecting section 2443, plug 245, valve core 250, solenoid valve 260, burner head 300, gas mixing chamber 310, thermocouple 400, first tube 500. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figure 1, 2 As shown in FIG. 3 , the valve pilot light device according to the embodiment of the utility model comprises a pilot light assembly 100 and a valve body assembly 200; Figure 2 As shown, the ever-open flame assembly 100 includes a bracket 110, a ever-open flame burner 120 and an ignition needle 130, the bracket 110 has an air baffle 111, the ever-open flame burner 120 and the ignition needle 130 are both mounted on the bracket 110, the air baffle 111, the ignition needle 130 and the ever-open flame burner 120 are sequentially spaced along the left and right directions of the bracket 110, the ever-open flame burner 120 has a gas supply channel 121 and a gas inlet 122 and a gas outlet 123 connected to the gas supply channel 121, the gas outlet 123 is arranged on the left side wall of the ever-open flame burner 120, the air baffle 111 and the ignition needle 130 are both arranged opposite to the gas outlet 123, and the lower end surface of the air baffle 111 is located below the gas outlet 123; as shown Figure 4 As shown, the vertical extension height of the air baffle 111 at least partially coincides with the height of the gas outlet 123, so as to ensure that the air baffle 111 can block at least part of the gas ejected from the gas outlet 123 from moving to the left; Figure 1 , 3 As shown, the valve body assembly 200 includes a valve body 210, an adjusting screw 220 and a valve core 250. The valve body 210 has a gas channel 230 and a pilot light output channel 240. The adjusting screw 220 is rotatably mounted on the valve body 210 and extends into the pilot light output channel 240. Figure 2 , 3 As shown in FIGS. 5 and 5 , the ever-open flame output channel 240 is respectively connected to the gas channel 230 and the gas inlet 122. Specifically, the gas outlet 242 of the ever-open flame output channel 240 is connected to the gas inlet 122 through the first tube 500; the gas channel 230 is also respectively connected to the external gas supply equipment and the gas mixing chamber 310 of the burner head 300. The valve core 250 is rotatably installed in the gas channel 230. The valve core 250 is used to switch the gas path so that the gas is supplied to the gas mixing chamber 310 and / or the ever-open flame burner 120. The valve body assembly 200 is used to control the on-off and flow rate of the gas in the gas channel 230.

[0036] By providing an adjusting screw 220 on the ever-burning flame output channel 240, the flow rate of the ever-burning flame output channel 240 can be adjusted, and then the gas concentration can be adjusted, thereby ensuring that the gas delivered to the ever-burning flame burner 120 can be ignited by the ignition needle 130, thereby improving the ignition success rate of the ignition needle 130, and by providing an air baffle plate 111 on the side of the ignition needle 130 away from the ever-burning flame burner 120, when the gas is ejected from the gas outlet 123, the gas is blocked by the air baffle plate 111, and a vortex is formed between the air baffle plate 111 and the ever-burning flame burner 120, so that the gas and air are fully mixed, making it easier for the ignition needle 130 to ignite the gas, thereby further improving the ignition success rate of the ignition needle 130.

[0037] like Fig.12 As shown, when working, in the gas channel 230 of the external gas input valve body 210, the gas enters the ever-open flame output channel 240 through the gas channel 230, and then enters the ever-open flame burner 120 through the gas inlet 122, and then is ejected from the gas outlet 123 of the ever-open flame burner 120, the air baffle 111 blocks part of the gas from moving to the left, the ignition needle 130 ignites the ejected gas, and the ever-open flame burner 120 continues to burn; wherein, during or before the gas delivery process, the output flow of the ever-open flame output channel 240 can be adjusted by twisting the adjusting screw 220, thereby adjusting the gas concentration.

[0038] Specifically, Figure 8 , 13 As shown, a valve core 250 and a solenoid valve 260 are installed in the gas channel 230, the valve body 210 has a gas input port 212 and a gas output port 213, the gas output port 213 is connected to the gas mixing chamber 310 (outer ring ejector pipe and inner ring ejector pipe) of the burner head 300, the solenoid valve 260 is used to block the gas from the gas input port 212 from entering the valve core 250, and the valve core 250 is used to switch the gas path so that the gas input port 212 is connected to the gas output port 213 and / or the long-open flame output channel 240, as shown in FIG. Figure 1 As shown, a thermocouple 400 is provided on one side of the pilot flame burner 120 , and the solenoid valve 260 is electrically connected to the thermocouple 400 .

[0039] During operation, when the valve core 250 switches to the ignition position, the valve core 250 moves the sealing plug of the solenoid valve 260 so that the gas input port 212 is connected to the valve core 250, so that the gas is delivered to the long-fire output channel 240 and the gas output port 213, so that the long-fire burner 120 can obtain gas for ignition and can ignite the outer ring fire cover and the inner ring fire cover of the burner head 300. After ignition, the thermocouple 400 on one side of the long-fire burner 120 detects the flame, thereby generating electrical energy to drive the solenoid valve 260 to maintain the state, so that the gas is kept supplied. If the flame is extinguished, the solenoid valve 260 will lose electrical energy, and the solenoid valve 260 will cut off the gas supply again under the action of the reset spring; after the long-fire burner 120 continues to burn, the valve core 250 switches its position, so that the gas is delivered to the gas output port 213, so that the outer ring fire cover and the inner ring fire cover of the burner head 300 obtain gas, thereby achieving a large fire or a small fire.

[0040] In some embodiments of the present invention, Figure 2 , 6 As shown, the ignition needle 130 includes a needle body 131, and the needle body 131 includes a vertical section 132 and an inclined section 133. The lower end of the inclined section 133 is connected to the upper end of the vertical section 132, and the inclined section 133 is inclined toward the direction close to the long-fire burner 120, so that the upper end of the ignition needle 130 is close to the gas outlet 123 of the long-fire burner 120, further improving the ignition success rate of the ignition needle 130.

[0041] In some embodiments of the present invention, Figure 2 As shown, the distance between the upper end of the ignition needle 130 and the air baffle 111 is defined as L1, and the distance between the upper end of the ignition needle 130 and the gas outlet 123 is defined as L2, L1>L2. The ignition needle 130 is made close to the gas outlet 123 of the pilot burner 120, further improving the ignition success rate of the ignition needle 130.

[0042] In some embodiments of the present invention, Figure 6 As shown, the ever-open flame assembly 100 also includes a mounting frame 140, which is detachably mounted on the bracket 110. The mounting frame 140 includes a vertical plate 141 and a horizontal plate 142. The vertical plate 141 is mounted on the rear side of the ever-open flame burner 120 and the rear side of the ignition needle 130. The horizontal plate 142 is connected to the upper end of the vertical plate 141 and is located above the ever-open flame burner 120 and the ignition needle 130. The air baffle 111 is connected to the left side of the horizontal plate 142.

[0043] The vertical plate 141 , the horizontal plate 142 and the air baffle plate 111 are used to enclose the long flame burner 120 and the ignition needle 130 to further improve the ignition success rate of the ignition needle 130 ; the mounting frame 140 is detachably mounted on the bracket 110 to facilitate the installation and removal of the air baffle plate 111 .

[0044] Specifically, Figure 4 As shown, the orthographic projections of the air baffle 111 and the gas outlet 123 on the plane where the gas outlet 123 is located partially overlap, so that part of the gas is not blocked by the air baffle 111, and can be normally ejected outward to mix with the air, thereby improving the ignition success rate of the ignition needle 130.

[0045] In some embodiments of the present invention, Figure 3 As shown, a connecting hole 221 is provided at the position of the adjusting screw 220 corresponding to the ever-burning flame output channel 240, and the inlet and outlet ends of the connecting hole 221 are respectively connected with the air inlet 241 and the air outlet 242 of the ever-burning flame output channel 240; when the outer side of the adjusting screw 220 is in contact and sealed with the ever-burning flame output channel 240, the adjusting screw 220 separates the ever-burning flame output channel 240 into a first connecting channel 243 and a second connecting channel 244, and the first connecting channel 243 can be connected with the second connecting channel 244 through the connecting hole 221.

[0046] The utility model provides a connecting hole 221 on the adjusting screw 220. When the minimum flame of the ever-open flame is required, the adjusting screw 220 is tightened to the tightest, so that the side of the adjusting screw 220 is sealed and connected with the ever-open flame output channel 240. The gas in the ever-open flame output channel 240 can only be discharged to the outside through the connecting hole 221, so that the gas flow rate is constant, thereby ensuring that the minimum flame of the ever-open flame after each adjustment is the same each time, ensuring that the flame can trigger the thermocouple 400 on the ever-open flame assembly 100, so that the gas valve can continuously transport gas.

[0047] In a further embodiment of the present invention, Figure 3 , 7 As shown, the gas channel 230 includes a first mounting hole 231 for mounting the valve core 250, the valve body 210 has a second mounting hole 211 arranged on the same side as the first mounting hole 231, and the adjusting screw 220 is installed in the second mounting hole 211. The adjusting screw 220 and the valve core 250 are designed on the same side, so that when the size of the pilot flame needs to be adjusted, the user can adjust it from the front side of the burner instead of adjusting it from the side of the burner, thereby avoiding the inability to adjust the size of the pilot flame when the side of the burner is closed, and achieving the technical effect of convenient adjustment.

[0048] Specifically, Figure 3 , 7 As shown, the axis of the second mounting hole 211 is parallel to the axis of the first mounting hole 231 , so that the adjusting screw 220 can be adjusted horizontally, allowing the user to easily adjust the adjusting screw 220 .

[0049] In a further embodiment of the present invention, Figure 3As shown, the adjusting screw 220 can pass through the first communicating channel 243 and can extend into the second communicating channel 244 to be in contact and sealed therewith. That is, when the adjusting screw 220 is tightened, the adjusting screw 220 extends into the second communicating channel 244 and is sealedly connected to the second communicating channel 244, and the gas in the first communicating channel 243 enters the second communicating channel 244 through the communicating hole 221 and is then discharged from the second communicating channel 244, so as to achieve a constant flow rate.

[0050] In a further embodiment of the present invention, Fig. 9 As shown, the inlet end of the second connecting channel 244 has a circular chamfer 2441, and the end of the adjusting screw 220 close to the second connecting channel 244 has a conical surface 222 for abutting against the circular chamfer 2441. When the adjusting screw 220 is tightened, the conical surface 222 of the adjusting screw 220 abuts against the circular chamfer 2441 of the second connecting channel 244 to achieve a sealed connection, thereby ensuring that the gas in the first connecting channel 243 is only discharged from the connecting hole 221, ensuring a constant gas flow rate, and ensuring continuous gas supply to the valve body.

[0051] In a further embodiment of the present invention, Figure 8 As shown, the valve body assembly 200 further includes a solenoid valve 260, and the gas passage 230 further includes an air intake chamber 232 for installing the solenoid valve 260. The solenoid valve 260 is used to seal the air intake chamber 232 so that the air intake chamber 232 is not connected to the first installation hole 231. The valve core 250 is used to make the sealing plug of the solenoid valve 260 not seal the air intake chamber 232 and switch the gas path. When igniting, the valve core 250 makes the sealing plug of the solenoid valve 260 open the air intake chamber 232 so that the air intake chamber 232 is connected to the first installation hole 231. When extinguishing the flame, the solenoid valve 260 can seal the air intake chamber 232 through the sealing plug.

[0052] The valve body 210 has a gas input port 212 connected to the air intake chamber 232 and a gas output port 213 connected to the first mounting hole 231. The gas output port 213 and the gas input port 212 are respectively located at the upper and lower ends of the valve body 210. The gas input port 212 and the gas output port 213 partially overlap and communicate with each other in the upper and lower directions. Since the installation position of the existing gas valve on the furnace is limited, the utility model makes the gas input port 212 and the gas output port 213 partially overlap, so that the gas input port 212 and the gas output port 213 can be conveniently connected to other structures.

[0053] In a further embodiment of the present invention, Figure 8As shown, the gas input port 212 has an inclined connecting section 2121 inclined toward the solenoid valve 260, and the gas input port 212 is connected to the air intake chamber 232 through the inclined connecting section 2121; the gas input port 212 is provided with the inclined connecting section 2121 to ensure that the gas input port 212 and the gas output port 213 partially overlap in the up and down directions.

[0054] Specifically, Figure 3 As shown, the axis of the first connecting channel 243 is parallel to the horizontal plane, and the two ends of the first connecting channel 243 are respectively connected to the gas channel 230 and the outside of the valve body 210. A plug 245 is provided at one end of the first connecting channel 243 connected to the outside of the valve body 210, and the second connecting channel 244 is located between the two ends of the first connecting channel 243. The first connecting channel 243 extends from the outside of the valve body 210 to the gas channel 230, which is convenient for drilling the first connecting channel 243. By providing a plug, it is ensured that the gas in the first connecting channel 243 flows to the second connecting channel 244.

[0055] Specifically, the second connecting channel 244 includes a first connecting section 2442 and a second connecting section 2443. The axis of the first connecting section 2442 is colinear with the axis of the second mounting hole 211, so that the first connecting section 2442 can be processed together when the second mounting hole 211 is processed, which is convenient for processing. There is an angle between the axis of the second connecting section 2443 and the axis of the first connecting channel 243, so that the first connecting section 2442 and the second connecting section 2443 can be processed separately. Specifically, the second mounting hole 211 and the second connecting section 2443 are relatively arranged, so that the second connecting section 2443 is convenient for connecting to the pipeline of the burner and convenient for processing.

[0056] Specifically, Fig. 9 , 10 As shown in Figures 11, the connecting hole 221 includes a first hole section 2211 and a second hole section 2212. The first hole section 2211 penetrates the adjusting screw 220 along the radial direction of the adjusting screw 220, and the second hole section 2212 extends along the axial direction of the adjusting screw 220. One end of the second hole section 2212 is connected with the middle part of the first hole section 2211, and the other end of the second hole section 2212 is connected with the second connecting channel 244. The first hole section 2211 penetrates the adjusting screw 220 along the radial direction, so that the gas can enter the interior of the first hole section 2211 from both ends and then be discharged from the second hole section 2212, so that the gas can enter the connecting hole 221 conveniently and ensure smooth gas flow.

[0057] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A valve long-fire device, characterized in that: include: A pilot flame assembly, comprising a bracket, a pilot flame burner and an ignition needle, wherein the bracket has an air baffle, the pilot flame burner and the ignition needle are both mounted on the bracket, the air baffle, the ignition needle and the pilot flame burner are sequentially spaced along the left-right direction of the bracket, the pilot flame burner has a gas supply channel and a gas inlet and a gas outlet communicated with the gas supply channel, the gas outlet is arranged on the side wall of the pilot flame burner, the air baffle and the ignition needle are both arranged opposite to the gas outlet, and the extending height of the air baffle in the up-down direction at least partially coincides with the height of the gas outlet; A valve body assembly comprises a valve body, an adjusting screw and a valve core, wherein the valve body has a gas passage and a pilot flame output passage, wherein the pilot flame output passage is respectively connected to the gas passage and the gas inlet, and the adjusting screw is rotatably mounted on the valve body and extends into the pilot flame output passage; the valve body assembly is used to control the on-off and flow rate of the gas in the gas passage.

2. The valve pilot light device according to claim 1, characterized in that: The ignition needle comprises a needle body, wherein the needle body comprises a vertical section and an inclined section, wherein the lower end of the inclined section is connected to the upper end of the vertical section, and the inclined section is inclined toward the direction approaching the pilot flame burner.

3. The valve pilot light device according to claim 1, characterized in that: The distance between the upper end of the ignition needle and the air baffle is defined as L1, and the distance between the upper end of the ignition needle and the gas ejection port is defined as L2, L1>L2.

4. The valve pilot light device according to claim 1, characterized in that: The pilot flame assembly also includes a mounting frame, which is detachably mounted on the bracket, and the mounting frame includes a vertical plate and a horizontal plate, the vertical plate is mounted on the rear side of the pilot flame burner and the rear side of the ignition needle, the horizontal plate is connected to the upper end of the vertical plate and is located above the pilot flame burner and the ignition needle, and the air baffle is connected to the left side of the horizontal plate.

5. The valve pilot light device according to claim 1, characterized in that: A connecting hole is provided at the position of the adjusting screw corresponding to the ever-burning flame output channel, and the two ends of the connecting hole are respectively connected with the air inlet and the air outlet of the ever-burning flame output channel; when the outer side of the adjusting screw is in contact and sealed with the ever-burning flame output channel, the adjusting screw separates the ever-burning flame output channel into a first connecting channel and a second connecting channel, and the first connecting channel can be connected with the second connecting channel through the connecting hole.

6. The valve pilot light device according to claim 1 or 5, characterized in that: The valve body assembly also includes a valve core, the gas channel includes a first mounting hole for mounting the valve core, the valve body has a second mounting hole arranged on the same side as the first mounting hole, and the adjusting screw is installed in the second mounting hole.

7. The valve pilot light device according to claim 5, characterized in that: The adjusting screw can pass through the first communicating passage and can extend into the second communicating passage to contact and seal therewith.

8. The valve pilot light device according to claim 7, characterized in that: The inlet end of the second communication channel has a circular arc chamfer, and the end of the adjusting screw close to the second communication channel has a conical surface for abutting against the circular arc chamfer.

9. The valve pilot light device according to claim 6, characterized in that: The valve body assembly also includes a solenoid valve, and the gas channel also includes an air intake chamber for installing the solenoid valve. The valve body has a gas input port connected to the air intake chamber and a gas output port connected to the first mounting hole. The gas output port and the gas input port are respectively located at the upper and lower ends of the valve body, and the gas input port and the gas output port partially overlap and communicate with each other in the upper and lower directions.

10. The valve pilot light device according to claim 9, characterized in that: The gas input port has an inclined communication section inclined toward the solenoid valve, and the gas input port is communicated with the air intake chamber through the inclined communication section.

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