Gear shifting gas valve

Abstract

A gear shifting gas valve comprises a valve body, a valve cover, a valve rod, a driving rod, a spring and a valve element, the valve rod penetrates through a valve rod channel, the driving rod is arranged at the driven end of the valve rod, the valve element is arranged in a valve element cavity, a driving sleeve extends out of a front transmission cavity, and the driving rod is in sliding fit with a radial driving groove. The driving sleeve is sleeved with the spring, and the two ends of the spring are matched with the driving rod and the valve element correspondingly; the two ends of the driving rod are in sliding fit with the arc-shaped protrusions and embedded into the gear grooves. When the default state is the first gear, the first air outlet pipe, the second air outlet pipe and the third air outlet pipe are communicated; in the second gear, the second air outlet pipe is communicated with the third air outlet pipe, and in the third gear, the first air outlet pipe is communicated with the third air outlet pipe; in the fourth gear, the second air outlet pipe is conducted; the valve rod rotates by 360 degrees anticlockwise or clockwise; when the valve rod is in a static state, the two ends of the driving rod are embedded into the clamping grooves respectively. Only one spring is used, the valve rod and the valve element can rotate clockwise and anticlockwise, gear shifting is achieved, and the hand feeling is obvious during gear shifting.

Description

Technical Field

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

[0002] At present, the existing technology, Chinese patent 201822207026.X, a gas valve with a clear and definite gear feel, includes a valve seat, a valve cover and a valve stem. The bottom is provided with a first spring that keeps the valve stem moving upward, and the side of the valve stem is provided with a raised driving column; the inner top surface of the valve cover is provided with a plurality of gear grooves arranged along the circumference; the valve stem is provided with a pressure cover that can move up and down with the valve stem, and the pressure cover is located above the valve cover; it is characterized in that: the valve stem is sleeved with a second spring, the second spring is supported between the pressure cover and the valve cover and keeps the valve stem moving upward, and the valve stem, under the joint action of the first spring and the second spring, keeps the driving column moving upward and can form a concave-convex matching structure with the gear groove. It has a switch function. The problem is that the structure is complex and can only rotate in the counterclockwise direction. Utility Model Content

[0003] The utility model aims to provide a shift gas valve which can rotate in both clockwise and counterclockwise directions and realize shifting.

[0004] The utility model is realized in this way: a shift gas valve, which is special in that it includes a valve body, a valve cover, a valve stem, a driving rod, a spring and a valve core.

[0005] The valve body comprises a valve core cavity with front and rear openings, a front transmission cavity, and a first air outlet pipe, a second air outlet pipe and a third air outlet pipe arranged in sequence from the back to the front. A countersunk hole is arranged on the front opening of the valve core cavity, and the rear opening end is an air inlet end. There is a spacing between the first air outlet pipe, the second air outlet pipe and the third air outlet pipe;

[0006] The valve cover includes a valve stem channel and four evenly distributed arc-shaped protrusions, and the gap between two adjacent arc-shaped protrusions constitutes a shifting groove;

[0007] The valve core has a rear opening and includes a drive sleeve and a first air outlet group, a second air outlet group and a third air outlet group arranged in sequence from the back to the front, and a radial drive groove is provided on the drive sleeve; the diameter of the front end of the valve core is larger than the diameter of the drive sleeve;

[0008] The valve stem passes through the valve stem channel, and the drive rod is arranged at the driven end of the valve stem, the valve core is arranged in the valve core cavity, the drive sleeve extends from the front transmission cavity, the drive rod slides with the radial drive groove, the spring is sleeved on the drive sleeve, and the two ends of the spring are respectively matched with the drive rod and the valve core; the two ends of the drive rod slide with the arc-shaped protrusions and are embedded in the gear groove; the default state is the first gear, the first air outlet pipe, the second air outlet pipe and the third air outlet pipe are connected; the second gear, the second air outlet pipe and the third air outlet pipe are connected, the third gear, the first air outlet pipe and the third air outlet pipe are connected; the fourth gear, the second air outlet pipe is connected; the valve stem rotates 360 degrees counterclockwise or clockwise; when the valve stem is stationary, the two ends of the drive rod are respectively embedded in the slot.

[0009] The shift gas valve is special in that the end surface of the axially suspended end of the arc-shaped protrusion is in an arc shape.

[0010] The shift gas valve is special in that the diameter of the circle where the arc-shaped protrusion is located is larger than the outer diameter of the drive sleeve.

[0011] The shift gas valve is special in that: the first gas outlet pipe faces downward, the second gas outlet pipe faces left, and the third gas outlet pipe faces upward;

[0012] The first air outlet group includes two first air outlets on a diameter line,

[0013] The second air outlet group includes a second arc-shaped air groove and three second air outlets arranged in the second arc-shaped air groove.

[0014] The third air outlet group includes a third arc-shaped air groove and three third air outlets arranged in the third arc-shaped air groove. The first air outlet is in a plane perpendicular to the horizontal plane, and the second arc-shaped air groove and the third arc-shaped air groove are located on both sides.

[0015] The utility model discloses a shift gas valve which uses only one spring. The valve stem and the valve core can rotate clockwise and counterclockwise to realize the shifting. When the gears are shifted, the hand feeling is obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model.

[0017] Figure 2 yes Figure 1 A-A view of.

[0018] Figure 3 yes Figure 1 B-B view.

[0019] Figure 4 yes Figure 1 C-C view of the .

[0020] Figure 5yes Figure 1 D-D view.

[0021] Figure 6 It is a stereogram of the utility model.

[0022] Figure 7 It is one of the three-dimensional exploded views of the utility model.

[0023] Figure 8 This is the second three-dimensional exploded view of the present utility model. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1 As shown, a shift gas valve comprises a valve body 1, a valve cover 2, a valve stem 3, a drive rod 4, a spring 5 and a valve core 6.

[0027] The valve body 1 comprises a valve core chamber 11 with front and rear openings, a front transmission chamber 12, and a first air outlet pipe 13, a second air outlet pipe 14 and a third air outlet pipe 15 arranged in sequence from back to front. A countersunk hole is arranged on the front opening of the valve core chamber 11, and the rear opening end is an air inlet end. There is a spacing between adjacent first air outlet pipes 13, second air outlet pipes 14 and third air outlet pipes 15.

[0028] The valve cover 2 includes a valve stem channel 21 and four evenly distributed arc-shaped protrusions 22, and the gap between two adjacent arc-shaped protrusions 22 forms a shifting groove 23;

[0029] The valve core 6 has a rear opening and includes a drive sleeve 61 and a first air outlet group 62, a second air outlet group 63 and a third air outlet group 64 arranged in sequence from the back to the front. The drive sleeve 61 is provided with a radial drive groove; the diameter of the front end of the valve core 6 is larger than the diameter of the drive sleeve 61;

[0030] The valve stem 3 passes through the valve stem channel 21, and the drive rod 4 is arranged at the driven end of the valve stem 3, the valve core 6 is arranged in the valve core cavity 11, the drive sleeve 61 extends from the front transmission cavity 12, the drive rod 4 is slidably matched with the radial drive groove, the spring 5 is sleeved on the drive sleeve 61, and the two ends of the spring 5 are respectively matched with the drive rod 4 and the valve core 6, and the two ends of the drive rod are slidably matched with the arc-shaped protrusions and are embedded in the gear groove; the first air outlet hole group 62, the second air outlet hole group 63 and the third air outlet hole group 64 respectively correspond to the air guide holes connected to the first air outlet pipe 13, the second air outlet pipe 14 and the third air outlet pipe 15 and the valve core cavity 11;

[0031] like Figure 2 , Figure 3 , Figure 4 As shown, the default state is the first gear, the first air outlet pipe 13, the second air outlet pipe 14 and the third air outlet pipe 15 are connected; the second gear, the second air outlet pipe 14 and the third air outlet pipe 15 are connected; the third gear, the first air outlet pipe 13 and the third air outlet pipe 15 are connected; the fourth gear, the second air outlet pipe 14 is connected; in the first gear state, rotate 90 degrees counterclockwise to switch to the second gear; continue to rotate 90 degrees to switch from the second gear to the third gear; continue to rotate 90 degrees to switch from the third gear to the fourth gear. Continue to rotate 90 degrees to return to the first gear state.

[0032] In the first gear state, turn it 90 degrees clockwise to change from first gear to fourth gear, then turn it another 90 degrees to change from fourth gear to third gear, then turn it another 90 degrees to change from third gear to second gear; then turn it another 90 degrees to change from second gear to first gear;

[0033] The valve stem 3 can be rotated 360 degrees counterclockwise or clockwise to achieve gear shifting; when the valve stem 3 is stationary, both ends of the driving rod 4 are respectively engaged with the slots.

[0034] As a further improvement of the utility model: the end surface of the axially suspended end of the arc-shaped protrusion 22 is arc-shaped. When the valve stem rotates, the drive rod first compresses the spring when sliding on the arc-shaped protrusion 22, and the valve stem moves toward the valve core. When sliding over a high point of the arc-shaped protrusion, the valve stem moves away from the valve core, and the compressed spring is gradually released. The drive rod enters another gear slot from one gear slot and makes a collision sound. The spring keeps the drive rod in the gear slot, and it has a good hand feel.

[0035] The diameter of the circle where the arc-shaped protrusion 22 is located is larger than the outer diameter of the drive sleeve 61 .

[0036] As a further improvement of the utility model: Figure 1 , Figure 6 As shown, the first air outlet pipe 13 faces downward, the second air outlet pipe 14 faces leftward, and the third air outlet pipe 15 faces upward; it can also be said that the first air outlet pipe 13 faces the negative direction of the Z axis, the second air outlet pipe 14 faces the positive direction of the Y axis, and the third air outlet pipe 15 faces the positive direction of the Z axis.

[0037] like Figure 3 , Figure 7 As shown, the first air outlet group 62 includes two first air outlet holes 621 on a diameter line, along the Z-axis direction;

[0038] like Figure 4 , Figure 7 As shown, the second air outlet hole group 63 includes a second arc-shaped air groove 631 and three second air outlet holes 632 arranged in the second arc-shaped air groove, and the second arc-shaped air groove 631 is located on the positive direction side of the Y axis;

[0039] like Figure 5 , Figure 7 As shown, the third air outlet hole group 64 includes a third arc-shaped air groove 641 and three third air outlet holes 642 arranged in the third arc-shaped air groove, and the third arc-shaped air groove 641 is located on the negative direction side of the Y axis;

[0040] The first air outlet is in a plane perpendicular to the horizontal plane, and the second arc-shaped air groove and the third arc-shaped air groove are located on both sides.

[0041] When the utility model is used, the gas inlet end of the valve core cavity 11 is connected to the gas source through the gas switch valve.

[0042] 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 shift gas valve, characterized by: Including valve body, valve cover, valve stem, drive rod, spring and valve core, The valve body includes a valve core cavity with front and rear openings, a front transmission cavity, and a first air outlet pipe, a second air outlet pipe, and a third air outlet pipe arranged in sequence from back to front. A countersunk hole is provided on the front opening of the valve core cavity, and the rear opening end is the air inlet end. There is a gap between adjacent first air outlet pipes, second air outlet pipes, and third air outlet pipes. The valve cover includes a valve stem channel and four evenly distributed arc-shaped protrusions, and the gap between two adjacent arc-shaped protrusions constitutes a shift groove; The valve core has a rear opening and includes a drive sleeve and a first air outlet hole group, a second air outlet hole group, and a third air outlet hole group arranged in sequence from back to front. The drive sleeve is provided with a radial drive groove. The diameter of the front end of the valve core is larger than the diameter of the drive sleeve. The valve stem passes through the valve stem channel, and the drive rod is arranged at the driven end of the valve stem, the valve core is arranged in the valve core cavity, the drive sleeve extends from the front transmission cavity, the drive rod slides with the radial drive groove, the spring is sleeved on the drive sleeve, and the two ends of the spring respectively cooperate with the drive rod and the valve core; the two ends of the drive rod slide with the arc-shaped protrusion and engage with the gear groove; the default state is the first gear, the first air outlet pipe, the second air outlet pipe and the third air outlet pipe are connected; the second gear, the second air outlet pipe and the third air outlet pipe are connected, the third gear, the first air outlet pipe and the third air outlet pipe are connected; the fourth gear, the second air outlet pipe is connected; the valve stem rotates 360 degrees counterclockwise or clockwise; when the valve stem is stationary, the two ends of the drive rod are respectively engaged with the card slot.

2. A shift gas valve according to claim 1, characterized in that: The end surface of the axially suspended end of the arc-shaped protrusion is in an arc shape.

3. The shift gas valve according to claim 1, characterized in that: The diameter of the circle where the arc-shaped protrusion is located is larger than the outer diameter of the drive sleeve.

4. A shift gas valve according to claim 1, 2 or 3, characterized in that: The first air outlet pipe is downward, the second air outlet pipe is leftward, and the third air outlet pipe is upward; The first air outlet group includes two first air outlets on a diameter line, The second air outlet group includes a second arc-shaped air groove and three second air outlet holes arranged in the second arc-shaped air groove. The third air outlet group includes a third arc-shaped air groove and three third air outlets arranged in the third arc-shaped air groove. The first air outlet is in a plane perpendicular to the horizontal plane, and the second arc-shaped air groove and the third arc-shaped air groove are located on both sides.

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