A dual-control multi-speed valve

Abstract

A dual-control multi-speed valve includes a valve stem, a return spring, a valve body, a valve cover, a switch valve core, a gear dial, a gear valve seat, and a truncated cone-shaped pressure spring. The valve cover engages with the valve core cavity, the valve stem's drive rod slides with the axial groove of the drive sleeve, and the return spring engages with the valve stem and the closed end of the drive sleeve. The switch valve core rotates with the valve core cavity, the gear valve seat is sealed with the outlet cavity of the valve core cavity, the air intake transmission pipe is inserted into the air inlet and outlet portions, and the radial tongue engages with the radial groove. The bottom round end of the conical pressure spring engages with the end of the valve core cavity, and the top round end engages with the gear dial. The gear dial slides and seals with the end plate of the gear valve seat. The switch valve core acts as a switch transmission mechanism, and the gear dial and gear valve seat slide together to achieve switching and shifting. The flat sliding fit is wear-resistant, and the truncated cone-shaped pressure spring ensures a tight fit between the two, improving sealing performance.

Description

Technical Field

[0001] The invention relates to a gas valve. Background Art

[0002] The prior art, PCT / EP2017 / 054028, is a regulating valve for a gas cooking device, comprising a valve body having an inlet duct and at least one outlet duct, and a rotating disc (20) arranged between the inlet duct and the outlet duct, comprising a plurality of connection holes for regulating the gas flow, more than one connection hole overlapping with the outlet hole (15) of the outlet duct (12), and the rotating disc (20) comprising a main series (311, .., 3Ln) of connection holes whose sizes increase in the direction of increasing gas flow. Between adjacent holes in the main series (311, .., 3Ln) and after each hole in the main series (311, .., 3Ln) there is an insert hole, and the size of each insert hole is smaller than the previous adjacent hole (311) in the main series. The inner cavity 13 of the valve 100 is formed in a void in the valve body 10. A series of protrusions forming a contact surface 14 are arranged at the bottom of the void. The outlet opening 15 of the inner cavity 13 includes an elastic seal. When the rotating disk 20 is supported in the outlet opening 15, the elastic seal allows the rotating disk 20 to be fluidically isolated from the outlet pipe 12 during contact between the surface 21 of the rotating disk 20. However, there is a problem: when the rotating disk 20 rotates to achieve switching and shifting, the provision of the elastic seal leads to poor sealing after use.

[0003] Chinese Patent 202220231073.1 discloses a multi-speed adjustable gas valve comprising a valve body, a gas distribution member, and a drive assembly. The valve body comprises an inlet channel, an outlet channel, and a gas distribution cavity therebetween. The inlet channel and the outlet channel intersect with the gas distribution cavity to form an inlet and an outlet, respectively, on the side walls of the gas distribution cavity. The gas distribution member is a disc-shaped structure that abuts against the inner wall of the gas distribution cavity and is rotatable about an axis. The gas distribution member comprises a gas distribution hole that docks with the outlet. The gas distribution hole comprises a gas regulating section extending circumferentially along the gas distribution member. The gas regulating section comprises a first edge and a second edge defining its radial width. The first edge comprises a plurality of arc segments with different radii of curvature, centered about the axis. The problem is that there is a hidden danger of gas leakage. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-control multi-speed valve, which has the characteristics of double switching of switch and shift device and high sealing performance.

[0005] The present invention is realized as follows: a dual-control multi-speed valve, which is special in that it includes a valve stem, a return spring, a valve body, a valve cover, a switch valve core, a gear rotary disk, a gear valve seat and a frustum-shaped pressure spring.

[0006] The valve body includes a valve core cavity, an air inlet interface and an air outlet cavity. The switch valve core includes a drive sleeve and an air inlet and outlet portion. One end of the air inlet and outlet portion is open and includes an air inlet hole provided on the circumferential wall and a radial groove provided at the open end.

[0007] The gear dial includes a plurality of gear holes and an intake transmission pipe distributed in a circumferential manner. The intake transmission pipe is provided with radial air guide holes and radial latches.

[0008] One end of the gear valve seat is open, and a radial air guide groove and an air outlet pipe are provided on the end plate;

[0009] The valve cover is buckled with the valve core cavity, the driving rod of the valve stem is slidably matched with the axial groove of the driving sleeve, and the reset spring is matched with the closed end of the valve stem and the driving sleeve; the switch valve core is rotatably matched with the valve core cavity, the gear valve seat is sealed with the air outlet cavity of the valve core cavity, the air intake transmission pipe is inserted into the air inlet and outlet parts, and the radial tongue is engaged with the radial groove; the bottom round end of the conical pressure spring is matched with the end of the valve core cavity, and the top round end is matched with the gear dial, and the gear dial is slidably matched with the end plate of the gear valve seat and is sealed.

[0010] The double-control multi-speed valve is special in that it also includes a micro switch and a pressure plate.

[0011] The pressing plate includes a circular seat plate, a horizontal plate portion and a vertical pressing plate portion, wherein the horizontal plate portion and the vertical pressing plate portion are perpendicular to each other;

[0012] a guide groove on the valve cover;

[0013] The micro switch is arranged on the valve cover, and the circular seat plate rotates with the valve stem to move along the axis of the valve stem; the horizontal plate part slides with the guide groove, and the vertical pressure plate part cooperates with the micro switch.

[0014] The dual-control multi-speed valve is special in that: the valve stem is provided with two retaining ring grooves;

[0015] The clamping spring is engaged with the clamping spring groove, the valve stem between the circular seat plate and the clamping spring is rotationally matched, and the clamping spring drives the circular seat plate.

[0016] The dual-control multi-speed valve is special in that the air inlet holes on the air inlet and outlet parts include an arc-shaped groove and radial holes located at both ends of the arc-shaped groove.

[0017] The present invention provides a dual-control multi-speed valve. Due to the adoption of such a structure, the switch valve core plays the role of switching transmission, the gear dial and the gear valve seat slide together to realize switching and shifting, and the plane sliding cooperation is wear-resistant, and the frustum-shaped pressure spring makes the two fit tightly, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the present invention.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3 It is a partial planar exploded view of the present invention.

[0021] Figure 4 It is one of the three-dimensional exploded views of the present invention.

[0022] Figure 5 This is the second exploded perspective view of the present invention. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1 As shown, a dual-control multi-speed valve includes a valve stem 1, a return spring 2, a valve body 3, a valve cover 8, a switch valve core 4, a gear dial 5, a gear valve seat 6 and a frustum-shaped pressure spring 7.

[0025] The valve body 3 includes a valve core cavity 31, an air inlet port 32 and an air outlet cavity 33. The valve core cavity 31 and the air outlet cavity 33 are in a straight line, and the air outlet cavity 33 is located at the end of the valve core cavity 31.

[0026] The switch valve core 4 includes a driving sleeve 41 and an air inlet and outlet portion 42. One end of the air inlet and outlet portion 42 is open and includes an air inlet hole 421 provided on the circumferential wall and a radial groove 422 provided at the open end.

[0027] The gear dial 5 includes a plurality of gear holes 51 distributed in a circumferential manner and an air intake transmission pipe 52. The air intake transmission pipe 52 is provided with radial air guide holes 521 and radial latches 522.

[0028] One end of the gear valve seat 6 is open, and a radial air guide groove 61 and an air outlet pipe 62 are provided on the end plate, and the radial air guide groove and the air outlet pipe 62 are connected;

[0029] The valve cover 8 engages with the valve core chamber 31, the valve stem 1 rotates with the valve stem passage on the valve cover, the drive rod 1A of the valve stem 1 slides with the axial groove 411 of the drive sleeve 41, and the return spring 2 engages with the closed ends of the valve stem 1 and the drive sleeve 41. The switch valve core 4 rotates with the valve core chamber 31, and its outlet end extends into the outlet chamber 33. The shift valve seat 6 is sealed with the outlet chamber 33 of the valve core chamber 31. The intake transmission pipe 52 is inserted into the intake and outlet portion 42, and the radial tongue 522 engages with the radial groove 422. The bottom circular end of the conical pressure spring 7 engages with the annular groove at the end of the outlet chamber 33, and the top circular end engages with the shift dial 5. The shift dial 5 slides and seals with the end plate of the shift valve seat 6. The conical pressure spring 7 ensures a tight fit between the shift dial 5 and the end plate of the shift valve seat 6, maintaining sealing performance even under wear, and extending its service life.

[0030] As a further improvement of the present invention: it also includes a micro switch 9 and a pressure plate 10,

[0031] The pressing plate 10 includes a circular base plate 101, a horizontal plate portion 102 and a vertical pressing plate portion 103. The circular base plate 101 is provided with a circular rotation hole; the horizontal plate portion 102 and the vertical pressing plate portion 103 are perpendicular;

[0032] The guide groove 81 on the valve cover 8;

[0033] The micro switch 9 is provided on the valve cover 8 , and the circular seat plate 101 rotates with the valve stem 1 and moves along the axis with the valve stem 1 ; the horizontal plate portion 102 slides with the guide groove 81 , and the vertical pressure plate portion 103 cooperates with the micro switch 9 .

[0034] As a further improvement of the present invention: the valve stem 1 is provided with two retaining ring grooves and also includes two retaining rings 11;

[0035] The circlip 11 is engaged with the circlip groove, the valve stem 1 is rotationally matched between the circular seat plate 101 and the circlip 11 , and the circlip 11 drives the circular seat plate 101 .

[0036] The air inlet hole 421 on the air inlet and outlet portion 42 includes an arc-shaped groove 4211 and radial holes 4212 located at both ends of the arc-shaped groove.

[0037] When the present invention is used, Figure 1 、 Figure 2As shown, the valve stem 1 is pressed, the valve stem 1 moves to the right, the drive rod 1A enters the axial groove 411 of the drive sleeve 41, the horizontal plate portion 102 of the pressure plate 10 moves in the guide groove 81, and the vertical plate portion 103 drives the micro switch 9; then the valve stem 1 is rotated counterclockwise, the valve core 4 and the gear dial 5 rotate together, the air inlet hole 421 on the valve core 4 is connected to the air inlet interface 32, and the gas enters the inlet and outlet air cavity 42 through the air inlet interface 32 and the air inlet hole 421, and then enters the air outlet cavity 33 and the air intake transmission pipe 52, and finally enters the gear valve seat 6; through the gear hole 51 and the radial groove 61 on the gear dial 5, it is ejected from the nozzle at the end of the outlet pipe 62.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A dual-control multi-speed valve, characterized by: It includes valve stem, return spring, valve body, valve cover, switch valve core, gear turntable, gear valve seat and frustum-shaped pressure spring. The valve body includes a valve core cavity, an air inlet interface and an air outlet cavity. The switch valve core includes a drive sleeve and an air inlet and outlet portion. One end of the air inlet and outlet portion is open and includes an air inlet hole provided on the circumferential wall and a radial groove provided at the open end. The gear dial includes a plurality of gear holes and an intake transmission pipe distributed in a circumferential manner. The intake transmission pipe is provided with radial air guide holes and radial latches. One end of the gear valve seat is open and a radial air guide groove and an air outlet pipe are provided on the end plate; The valve cover is buckled with the valve body, the driving rod of the valve stem is slidably matched with the axial groove of the driving sleeve, and the two ends of the return spring are respectively matched with the closed ends of the valve stem and the driving sleeve; the switch valve core is rotatably matched with the valve core cavity, the gear valve seat is sealed with the air outlet cavity of the valve core cavity, the air intake transmission pipe is inserted into the air inlet and outlet parts, and the radial tongue is embedded in the radial groove; the bottom round end of the conical pressure spring is matched with the end of the valve core cavity, and the top round end is matched with the gear dial, and the gear dial is slidably matched with the end plate of the gear valve seat and sealed; Also includes micro switches and pressure plates, The pressing plate includes a circular seat plate, a horizontal plate portion and a vertical pressing plate portion, wherein the horizontal plate portion and the vertical pressing plate portion are perpendicular to each other; The valve cover is provided with a guide groove; The micro switch is installed on the valve cover. The circular seat plate rotates with the valve stem and moves along the axis with the valve stem. The horizontal plate part slides with the guide groove, and the vertical pressure plate part cooperates with the micro switch. Press the valve stem, the valve stem moves, the drive rod enters the axial groove of the drive sleeve, the horizontal plate part of the pressure plate moves in the guide groove, and the vertical plate part drives the micro switch; Then rotate the valve stem counterclockwise, the switch valve core and the gear dial rotate together, the air inlet hole on the switch valve core is connected to the air inlet interface, and the gas enters the air inlet and outlet part through the air inlet interface and the air inlet hole, then enters the air outlet cavity and the air intake transmission pipe, and finally enters the gear valve seat; through the gear hole and radial air guide groove on the gear dial, it is sprayed out from the nozzle at the end of the outlet pipe.

2. A dual-control multi-speed valve according to claim 1, characterized in that: The valve stem is provided with two retaining ring grooves, and further comprises two retaining ring grooves; The retaining ring is engaged with the retaining ring groove, and the valve stem between the circular seat plate and the retaining ring is rotationally matched.

3. A dual-control multi-speed valve according to claim 1 or 2, characterized in that: The air inlet hole on the air inlet and outlet portion includes an arc-shaped groove and radial holes located at both ends of the arc-shaped groove.

Images