Gas quantity linear gas valve

Abstract

A linear gas valve for gas flow includes a valve cover, valve body, bottom cover, transmission component, valve core, valve stem, push rod, spring, auxiliary valve core, and solenoid valve assembly. The valve body includes a valve core cavity, a main gas flow channel, a main gas outlet port pipe, a secondary gas flow channel, a secondary valve core cavity, a secondary gas flow chamber, a solenoid valve core seat, a gas inlet port, and a bottom transmission gas flow chamber. The inlet and outlet chambers are provided with a longitudinal gas flow hole, a main arc-shaped gas flow groove, and a secondary arc-shaped gas flow groove. The counterclockwise ends of the main arc-shaped gas flow groove and the secondary arc-shaped gas flow groove are connected to the longitudinal gas flow hole. The depth of the main arc-shaped gas flow groove gradually increases from the beginning to the end in the counterclockwise direction. The valve stem is rotatably engaged with the valve stem channel, the end of the valve stem is engaged with the push rod, and the valve stem is engaged with the drive sleeve. The valve core is located in the valve core cavity, and the auxiliary valve core is located in the auxiliary valve core cavity. The inlet and outlet chambers are equipped with longitudinal air guide holes, main arc-shaped air guide grooves, and secondary arc-shaped air guide grooves. This structure achieves good linear performance of gas output.

Description

Technical Field

[0001] This utility model relates to a gas valve for a gas appliance. Background Technology

[0002] The existing technology, Chinese patent 202020254387.4, describes a single-outlet gas valve, including a valve stem, valve cover, valve body, valve core, push rod, pressure spring, transmission component, bottom cover, and solenoid valve core assembly. The valve body also has an arc-shaped air guide groove, a secondary air outlet passage adjacent to the main air outlet pipe, a regulating valve core cavity, an elongated air guide hole, and a connecting hole communicating with the main air outlet pipe and the elongated air outlet hole; the valve core cavity has a main air outlet hole. The clockwise side is provided with a main arc-shaped air guide groove; it also includes a regulating valve core; the regulating valve core cooperates with the regulating valve core cavity, and the main air outlet cooperates with the arc-shaped air guide groove. In one phase, the main air outlet is connected to the air outlet pipe; in another phase, the main air outlet is connected to the arc-shaped air guide groove, and the secondary air outlet, regulating valve core cavity, elongated air guide hole, connecting hole and air outlet pipe are sequentially connected; the bottom cover covers the suspended end of the elongated air outlet; the regulating valve core cooperates with the regulating valve core cavity. The problem is: the linear performance of the gas output is poor. Utility Model Content

[0003] The purpose of this invention is to provide a gas valve with linear gas flow, which features high linearity in gas output.

[0004] This utility model is implemented as follows: a gas valve with linear gas flow, characterized in that it includes a valve cover, valve body, bottom cover, transmission component, valve core, valve stem, push rod, spring, auxiliary valve core, and solenoid valve assembly.

[0005] The valve cover is provided with a valve stem passage;

[0006] The valve body includes a valve core cavity, a main air passage, a main air outlet pipe, a secondary air guide passage, a secondary valve core cavity, a secondary air guide cavity, a solenoid valve core seat, an air inlet, and a bottom transmission air guide cavity. The valve core cavity, the secondary air guide passage, the secondary valve core cavity, the secondary air guide cavity, and the main air outlet pipe are connected in sequence. The valve core cavity, the main air passage, and the main air outlet pipe are also connected in sequence.

[0007] The valve core includes an inlet / outlet chamber with one open end, a drive sleeve with a drive groove, and a top rod guide hole on the partition plate. The inlet / outlet chamber is provided with a longitudinal guide hole, a main arc-shaped guide groove, and a secondary arc-shaped guide groove. The counterclockwise ends of the main arc-shaped guide groove and the secondary arc-shaped guide groove are connected to the longitudinal guide hole. The depth of the main arc-shaped guide groove gradually increases from the beginning to the end in the counterclockwise direction.

[0008] The valve stem rotates with the valve stem passage, the end of the valve stem engages with the top rod, the valve stem engages with the drive sleeve, the valve core is located in the valve core cavity, and the auxiliary valve core is located in the auxiliary valve core cavity.

[0009] The gas valve with linear gas flow is characterized in that the longitudinal gas guide hole includes a square portion in the middle and arc-shaped portions at the upper and lower ends.

[0010] The gas valve with linear gas flow rate is characterized in that: the secondary valve core cavity is provided with a sealing cavity and an internal thread cavity from top to bottom; the secondary air guide passage is connected to the circumferential wall of the internal thread cavity; and the upper end of the internal thread cavity is connected to the secondary air guide cavity.

[0011] The auxiliary valve core includes a sealing part, an external thread part, and a guide rod part. The guide rod part includes radial air holes and axial air holes distributed in a circular pattern.

[0012] The sealing part and the sealing cavity are sealed, the external thread part and the internal thread cavity are fitted, and there is a gap between the air guide rod part and the internal thread cavity.

[0013] The gas valve with linear gas flow is characterized in that: the lower end of the internal threaded cavity is provided with an inverted frustum-shaped compression section and a cylindrical gas outlet section.

[0014] The gas valve with linear gas flow is characterized in that the radial air holes intersect on the axis of the guide rod.

[0015] The axial vent includes an axial cylindrical compression section and an axial cylindrical outlet section.

[0016] The gas valve with linear gas flow is characterized in that: the valve cover further includes an arc-shaped stop block, an arc-shaped guide rail, a valve closing groove, and several stop grooves on the arc-shaped guide rail, all disposed on the inner wall, with the valve closing groove, arc-shaped stop block, and arc-shaped guide rail arranged sequentially.

[0017] It also includes a stop lever, which is fixed to the valve stem, engages with the valve closing groove, slides with the arc-shaped guide rail, and moves in and out of the stop groove.

[0018] The gas valve with linear gas flow is characterized by having nine position slots.

[0019] The central angle between the valve closing groove and the starting end of the stop groove in the stop groove is 90 degrees, and the ending stop groove in the stop groove is adjacent to one end of the arc-shaped stop block.

[0020] This utility model discloses a gas valve with linear gas flow. The inlet and outlet gas chambers are provided with a longitudinal gas guide hole, a main arc-shaped gas guide groove, and a secondary arc-shaped gas guide groove. This structure achieves good linear performance of gas output. Attached Figure Description

[0021] Figure 1 This is one of the exploded perspective views of this utility model.

[0022] Figure 2 This is the second exploded perspective view of this utility model.

[0023] Figure 3 This is a cross-sectional view of the present invention.

[0024] Figure 4 yes Figure 3 A-A view.

[0025] Figure 5 yes Figure 3 B-B view.

[0026] Figure 6 This is an exploded plan view of this utility model.

[0027] Figure 7 This is a partial exploded perspective view of this utility model.

[0028] Figure 8 This is a partial sectional view of the present invention.

[0029] Figure 9 yes Figure 3 C-C view.

[0030] Figure 10 This is a perspective view of the valve cover of this utility model. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1 , Figure 2 As shown, a gas valve with linear gas flow includes a valve cover 1, a valve body 2, a bottom cover 3, a transmission component 4, a valve core 5, a valve stem 6, a push rod 71, a spring 72, a secondary valve core 8, and a solenoid valve assembly 9.

[0034] Valve cover 1 is provided with a valve stem channel;

[0035] The valve body 2 includes a valve core cavity 20, a main air passage 211, a main air outlet pipe 212, a secondary air guide passage 22, a secondary valve core cavity 23, a secondary air guide cavity 24, a solenoid valve core seat 25, an air inlet 26, and a bottom transmission air guide cavity 27. The valve core cavity 20, the secondary air guide passage 22, the secondary valve core cavity 23, the secondary air guide cavity 24, and the main air outlet pipe 212 are connected in sequence. The valve core cavity 20, the main air passage 211, and the main air outlet pipe 212 are connected in sequence. The air inlet, the solenoid valve core, the bottom transmission air guide cavity 27, and the valve core cavity 20 are connected in sequence.

[0036] The valve core 20 includes an inlet / outlet chamber 201 with one end open, a drive sleeve 202 with a drive groove, and a top rod guide hole 203 provided on the partition plate; the inlet / outlet chamber 201 is provided with a longitudinal guide hole 2011, a main arc-shaped guide groove 2012 and a secondary arc-shaped guide groove 2013, the counterclockwise ends of the main arc-shaped guide groove 2012 and the secondary arc-shaped guide groove 2013 are connected to the longitudinal guide hole 2011; the depth of the main arc-shaped guide groove 2012 gradually increases from the beginning to the end in the counterclockwise direction.

[0037] The valve stem 6 is rotatably engaged with the valve stem channel 1A, the end of the valve stem 6 is engaged with the push rod 71, the valve stem 6 is engaged with the drive sleeve, the valve core 5 is disposed in the valve core cavity 20, and the auxiliary valve core 8 is disposed in the auxiliary valve core cavity 23. This utility model is an improvement based on Chinese Patent 202020254387.4, entitled "A Single-Outlet Gas Pipe Gas Valve". Features not described in this embodiment have been disclosed in the aforementioned Chinese patent document.

[0038] As a further improvement of this utility model: the longitudinal air guide hole 2011 includes a square portion in the middle and arc-shaped portions at the upper and lower ends. Alternatively, the longitudinal air guide hole 2011 can be described as having an oblong shape.

[0039] As a further improvement to this utility model: such as Figure 7 As shown, the secondary valve core cavity 23 is provided with a sealing cavity 231 and a lower-opening internally threaded cavity 232 from top to bottom. The secondary air guide passage 22 communicates with the circumferential wall of the internally threaded cavity 232, and the lower end of the internally threaded cavity 232 communicates with the secondary air guide cavity 24.

[0040] The auxiliary valve core 8 includes a sealing part 81, an external thread part 82, and an air guide rod part 83. The air guide rod part 83 includes radial air holes 831 and axial air holes distributed in a circular pattern.

[0041] The sealing part 81 and the sealing cavity part 231 are sealed, the external thread part 82 and the internal thread cavity 232 are engaged, and there is a gap between the air guide rod part 83 and the internal thread cavity 232. By rotating the auxiliary valve core 8 and the size of the intersection between the external thread part 82 and the air outlet end of the auxiliary air guide passage 22, the air output can be adjusted.

[0042] As a further improvement of this utility model: the lower end of the internal thread cavity 232 is provided with an inverted frustum-shaped compression part 2321 and a cylindrical air outlet part 2322.

[0043] The radial air holes 831 intersect on the axis of the air guide rod portion 83.

[0044] The axial vent includes an axial cylindrical compression section 8321 and an axial cylindrical outlet section 8322. The diameter of the cylindrical compression section 8321 is smaller than the diameter of the axial cylindrical outlet section 8322.

[0045] like Figure 9 , Figure 10 As shown, the valve cover 1 also includes an arc-shaped stop block 1B, an arc-shaped guide rail 1C, a valve closing groove 1D, and several stop grooves 1E on the arc-shaped guide rail 1C, all disposed on the inner wall. The valve closing groove 1D, the arc-shaped stop block 1B, and the arc-shaped guide rail 1C are arranged sequentially.

[0046] It also includes a stop lever 10, which is fixed to the valve stem 6, engages with the valve closing groove 1D, slides with the arc-shaped guide rail 1C and engages with the stop groove 1E.

[0047] There are nine stop slots 1E.

[0048] The central angle of the starting end of the stop groove in the valve closing groove 1D and the stop groove 1E is 90°. The ending stop groove 1E in the stop groove 1E is adjacent to one end of the arc-shaped stop block 1B. The central angle of the arc-shaped stop block 1B is 90°.

[0049] When using this utility model, press down on the valve stem 6 and the stop rod 10 to disengage from the valve slot 1D. Then, rotate the valve stem 90 degrees counterclockwise, and the stop rod 10 slides on the arc-shaped guide rail, engaging with a stop groove 1E. The longitudinal air guide hole 2011 and the main air passage 211 are connected, and the gas flow is at its maximum. Continue rotating counterclockwise, and the stop rod 10 enters the next stop groove. As the intersection area of ​​the longitudinal air guide hole 2011 and the main air passage 211 decreases, the gas flow gradually decreases. Continue rotating the valve core, and the main arc-shaped air guide groove 2012 and the main air passage 211 are connected, achieving linear control of the gas flow. When the longitudinal air guide hole 2011 and the secondary air guide passage 22 intersect, the main arc-shaped air guide groove 2012 and the main air passage 211 separate.

[0050] As the valve core rotates, the gas flow changes, and there are nine positions.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gas valve with linear gas flow rate, characterized in that: Includes valve cover, valve body, bottom cover, transmission components, valve core, valve stem, push rod, spring, auxiliary valve core, and solenoid valve assembly. The valve cover is provided with a valve stem passage; The valve body includes a valve core cavity, a main air passage, a main air outlet pipe, a secondary air guide passage, a secondary valve core cavity, a secondary air guide cavity, a solenoid valve core seat, an air inlet, and a bottom transmission air guide cavity. The valve core cavity, the secondary air guide passage, the secondary valve core cavity, the secondary air guide cavity, and the main air outlet pipe are connected in sequence. The valve core cavity, the main air passage, and the main air outlet pipe are also connected in sequence. The valve core includes an inlet / outlet chamber with one open end, a drive sleeve with a drive groove, and a top rod guide hole on the partition plate. The inlet / outlet chamber is provided with a longitudinal guide hole, a main arc-shaped guide groove, and a secondary arc-shaped guide groove. The counterclockwise ends of the main arc-shaped guide groove and the secondary arc-shaped guide groove are connected to the longitudinal guide hole. The depth of the main arc-shaped guide groove gradually increases from the beginning to the end in the counterclockwise direction. The valve stem rotates with the valve stem passage, the end of the valve stem engages with the push rod, the valve stem engages with the drive sleeve, the valve core is located in the valve core cavity, and the auxiliary valve core is located in the auxiliary valve core cavity.

2. The gas valve with linear gas flow according to claim 1, characterized in that: The longitudinal air guide hole includes a square portion in the middle and arc-shaped portions at the upper and lower ends.

3. A gas valve with linear gas flow rate according to claim 1, characterized in that: The secondary valve core cavity is provided with a sealing cavity and an internal thread cavity from top to bottom. The secondary air guide passage is connected to the circumferential wall of the internal thread cavity, and the upper end of the internal thread cavity is connected to the secondary air guide cavity. The auxiliary valve core includes a sealing part, an external thread part, and a guide rod part. The guide rod part includes radial air holes and axial air holes distributed in a circular pattern. The sealing part and the sealing cavity are sealed, the external thread part and the internal thread cavity are fitted, and there is a gap between the air guide rod part and the internal thread cavity.

4. A gas valve with linear gas flow rate according to claim 3, characterized in that: The lower end of the internal threaded cavity is provided with an inverted frustum-shaped compression section and a cylindrical air outlet section.

5. A gas valve with linear gas flow rate according to claim 3, characterized in that: The radial air holes intersect on the axis of the air guide rod. The axial vent includes an axial cylindrical compression section and an axial cylindrical outlet section.

6. A gas valve with linear gas flow rate according to claim 1, 2, 3, 4 or 5, characterized in that: The valve cover also includes an arc-shaped stop block, an arc-shaped guide rail, a valve closing groove, and several stop grooves on the arc-shaped guide rail, all disposed on the inner wall. The valve closing groove, the arc-shaped stop block, and the arc-shaped guide rail are arranged sequentially. It also includes a stop lever, which is fixed to the valve stem, engages with the valve closing groove, slides with the arc-shaped guide rail, and moves in and out of the stop groove.

7. A gas valve with linear gas flow rate according to claim 6, characterized in that: There are nine gear slots. The central angle between the valve closing groove and the starting end of the stop groove in the stop groove is 90 degrees, and the ending stop groove in the stop groove is adjacent to one end of the arc-shaped stop block.

Images