CN219198305U - Plug valve for kitchen range - Google Patents

Abstract

The utility model discloses a plug valve for a kitchen range, which comprises: the top of the valve body is fixedly provided with a vertical shaft hole extending upwards, and the side wall of the vertical shaft hole is provided with an upper notch; the rotary shaft with a flat position is movably inserted into the vertical shaft hole, an annular control area positioned below the flat position is arranged at the position of the rotary shaft corresponding to the upper notch, the annular control area is divided into an outer wall surface section of the shaft and a groove opening towards the radial outer side of the rotary shaft along the circumferential direction, and the groove and the flat position are arranged in a staggered manner; the position switch is arranged on the outer side of the vertical shaft hole and provided with a contact head part transversely penetrating through the upper notch, the contact head part can move between the outer wall surface section of the abutting shaft and the groove, and when the contact head part is inserted into the groove and the contact head part is switched to a loosening state, the quick-frying function is activated. The plug valve disclosed by the utility model has a simple structure, can judge the rotation angle of the rotating shaft in a range, and can reliably activate the quick-frying function.

Description

Plug valve for kitchen range

Technical Field

The utility model relates to the technical field of kitchen ranges and plug valves, in particular to a plug valve for a kitchen range.

Background

The plug valve in the current gas kitchen range industry generally provides a valve opening and igniting function when rotating to 90 degrees, and the flow is at a maximum value at the moment, and the flow gradually becomes smaller when the plug valve continues to rotate anticlockwise. However, when the rotary shaft of the plug valve is rotated, the specific rotation angle and the current position of the plug valve cannot be judged by the general structure, and at the moment, the functions of smoke stove linkage, firepower display, quick-frying start and the like aiming at the rotation angle of the plug valve on a gas stove product cannot be realized.

In the industry, a plurality of micro switches are added in the plug valve to judge different positions, but only specific angle (maximum or minimum value) points can be judged, and the judgment of the rotation range between any angles cannot be realized.

In addition, the existing gas cooker activates the quick-frying function by independently setting a quick-frying key or pressing a rotating shaft to trigger a micro switch, and the mode can activate the quick-frying function, but can not judge the rotation range between any angles.

Disclosure of Invention

The utility model aims to solve one of the problems existing in the related art to at least a certain extent, and therefore, the utility model provides the plug valve for the kitchen range, which is simple in structure, can judge the rotation angle of the rotating shaft, and can reliably activate the quick-frying function.

According to the plug valve for the kitchen range, the plug valve is realized through the following technical scheme:

a plug valve for a cooktop, comprising: the valve body is provided with a valve chamber, a vertical shaft hole which extends upwards and is communicated with the valve chamber is fixedly arranged at the top of the valve body, and an upper notch which is communicated with the vertical shaft hole is arranged on the side wall of the vertical shaft hole; the rotary shaft with a flat position is movably inserted into the vertical shaft hole, an annular control area positioned below the flat position is arranged at the position of the rotary shaft corresponding to the upper notch, the annular control area is divided into a shaft outer wall section and a groove opening towards the radial outer side of the rotary shaft along the circumferential direction, and the groove and the flat position are arranged in a staggered mode; the position switch is arranged on the outer side of the vertical shaft hole and is provided with a contact head part transversely penetrating through the upper notch, the contact head part can move between the shaft outer wall surface section and the groove in a butting manner, and when the contact head part is inserted into the groove and the contact head part is switched to a loosening state, the quick-frying function is activated.

In some embodiments, the groove is located at the flat forward first angle, the first angle being any one of 90 degrees, 180 degrees, or 270 degrees.

In some embodiments, when the rotating shaft rotates to a second angle, the contact head is inserted into the groove and is switched to a release state, and the second angle is ±30 degrees of the first angle.

In some embodiments, the groove has a maximum cutting depth of 1mm in a radial direction, and the second angle is the first angle ± 15 degrees; or the maximum cutting depth of the groove in the radial direction is 1.5mm, and the second angle is the first angle plus or minus 25 degrees.

In some embodiments, a semicircular head is disposed at one end of the contact pressure head near the rotating shaft, a surface of the groove facing the opening of the contact pressure head is a vertical surface or an inner arc surface, and the inner arc surface is curved or recessed towards the inner part of the rotating shaft.

In some embodiments, an arcuate transition surface is formed at the junction of the shaft outer wall section and the groove, the arcuate transition surface curving or protruding radially outward of the shaft.

In some embodiments, the bottom surface of the groove is a lower horizontal surface; the top surface of the groove is an upper horizontal surface, or an upper guide surface which is inclined or bent outwards from bottom to top.

In some embodiments, a lower guide surface is formed on the underside of the upper guide surface that curves from bottom to top and inwardly.

In some embodiments, the groove has a width in the circumferential direction that is less than one-half the circumference of the shaft and greater than or equal to one-fourth the circumference of the shaft.

In some embodiments, the valve body is further provided with an outer ring air passage and a stir-frying air passage, the electromagnetic valve is arranged on the stir-frying air passage and used for opening or closing the stir-frying air passage, and the position switch is used for linking the electromagnetic valve.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. according to the plug valve, the annular control area positioned below the flat position is arranged on the rotating shaft and is divided into the shaft outer wall surface section and the groove along the circumferential direction, and the contact head part of the position switch can move between the abutting shaft outer wall surface section and the groove, so that the turning angle of the rotating shaft for triggering the closing or opening of the position switch can be adjusted according to the width and the cutting depth of the groove, and the range judgment of the turning angle of the rotating shaft is realized;

2. when the contact head part of the position switch is inserted into the groove and the contact head part is switched to a release state, the position switch is in an open state and activates the quick-frying function, so that the quick-frying function is activated by triggering the position switch through the groove of the rotating shaft, no quick-frying key is required to be additionally arranged on the cooker operation panel, and the cooker structure is simplified

3. Through being formed with the arc transitional surface in the juncture of axle outer wall section and recess, leave the contact head of position switch gradually when epaxial recess, slowly transition by the arc transitional surface and leave, reduce the transverse force of contact head, increased contact head lower pressure, make the rotation feel become good, promote the reliability.

Drawings

FIG. 1 is an exploded view of a plug valve according to example 1 of the present utility model;

FIG. 2 is a schematic diagram showing the structure of a plug valve according to embodiment 1 of the present utility model;

FIG. 3 is a schematic view showing the structure of a rotary shaft in embodiment 1 of the present utility model;

FIG. 4 is a schematic view of a part of the position switch in embodiment 1 of the present utility model;

FIG. 5 is a cross-sectional view of the plug valve of example 1 of the present utility model with the plug valve in a null position;

FIG. 6 is a cross-sectional view of the plug valve of example 1 of the present utility model with the plug valve in a first position;

FIG. 7 is a cross-sectional view of the plug valve of example 1 of the present utility model with the plug valve in a second position;

FIG. 8 is a cross-sectional view of the plug valve of example 1 of the present utility model with the plug valve in a third position;

FIG. 9 is a schematic view showing the structure of a rotary shaft in embodiment 2 of the present utility model;

fig. 10 is a cross-sectional view of the plug valve of embodiment 2 of the present utility model, the plug valve being shown in a second position.

In the figure: 1-a valve body, 11-a valve chamber, 111-a lower notch, 12-a vertical shaft hole, 121-an upper notch, 131-an outer ring air passage and 132-a stir-frying air passage; 2-rotating shaft, 21-flat position, 22-shaft outer wall surface section, 23-groove, 231-vertical surface, 232-inner arc surface, 233-arc transition surface, 234-lower horizontal surface, 235-upper guide surface, 236-lower guide surface; 3-position switch, 31-contact head, 311-semicircular head; 4-an electromagnetic valve; 5-a dial; 6-ignition switch, 61-shrapnel.

Detailed Description

The following examples illustrate the utility model, but the utility model is not limited to these examples. Modifications and equivalents of some of the technical features of the specific embodiments of the present utility model may be made without departing from the spirit of the present utility model, and they are all included in the scope of the claimed utility model.

Example 1

Referring to fig. 1-2, the present embodiment provides a plug valve for a kitchen range, comprising a valve body 1, a rotating shaft 2 and a position switch 3, wherein the valve body 1 is provided with a valve chamber 11, a vertical shaft hole 12 extending upwards and opening upwards is fixedly arranged at the top of the valve body 1, the lower end of the vertical shaft hole 12 is communicated with the valve chamber 11, and an upper notch 121 communicated with the vertical shaft hole 12 is arranged on the side wall of the vertical shaft hole 12. The rotating shaft 2 is movably inserted into the vertical shaft hole 12, a flat position 21 is arranged at the upper end of the rotating shaft 2, an annular control area (not shown in the figure) positioned below the flat position 21 is arranged at the position of the rotating shaft 2 corresponding to the upper notch 121, the annular control area is divided into an outer shaft wall surface section 22 and a groove 23 facing the radial outer side of the rotating shaft 2 along the circumferential direction of the rotating shaft 2, in the embodiment, the outer shaft wall surface section 22 is arc-shaped so as to reduce the transverse force of the contact head 31 of the position switch 3, the rotating hand feeling of the rotating shaft 2 is improved, and the reliability is improved. In addition, the recess 23 is offset from the flat 21, i.e. the side of the recess 23 facing the opening is oriented differently from the flat 21 and not on the same vertical plane.

The position switch 3 is arranged at the top of the valve body 1 and is positioned outside the vertical shaft hole 12, the position switch 3 is provided with a contact pressure head part 31 which transversely penetrates through the upper notch 121, and the contact pressure head part 31 can move between the contact shaft outer wall surface section 22 and the insertion groove 23. Referring to fig. 5, when the contact head 31 abuts against the shaft outer wall section 22, the contact head 311 is in a pressed state, that is, the contact head 311 of the position switch 3 is in a press fit state with the rotating shaft 2, and at this time, the position switch 3 is in a closed state, and the quick-frying function is standby; referring to fig. 6 to 8, when the contact pressure head 31 is inserted into the recess 23 and the contact pressure head 31 is switched to the released state, the contact pressure head 311 of the position switch 3 is in the released state, i.e., the contact pressure head 311 of the position switch 3 is in the released mating state with the rotation shaft 2, at which time the position switch 3 is in the opened state or the open state and the quick-frying function is activated.

Therefore, the plug valve of this embodiment is provided with the annular control area located below the flat position 21 on the rotating shaft 2, the annular control area is divided into the shaft outer wall surface section 22 and the groove 23 along the circumferential direction, the contact head 31 of the position switch 3 can move between the abutting shaft outer wall surface section 22 and the inserting groove 23, so that the limit of the groove 23 can act on the contact head 31 of the position switch 3 within a certain range, the rotating angle range of the rotating shaft 2 is controlled according to the width and the cutting depth of the groove 23, the rotating angle position of the rotating shaft 2 is judged to present a range change, and therefore the rotating angle of the rotating trigger position switch 3 is adjusted according to the width and the cutting depth of the groove 23, and further the rotating angle of the rotating shaft 2 is judged. In addition, when the contact head part 31 of the position switch 3 is inserted into the groove 23 and the contact head part 31 is switched to the loosening state, the position switch 3 is in the opening state and activates the stir-frying function, so that the stir-frying function is activated by triggering the position switch 3 through the groove 23 of the rotating shaft 2, the stir-frying key is not required to be additionally arranged on the cooker operation panel, and the cooker structure is facilitated to be simplified.

Referring to fig. 1-2, a lower notch 111 communicating with the valve chamber 11 is provided on the side wall of the valve body 1, in this embodiment, the lower notch 111 is located below the upper notch 121, and the lower notch 111 is arranged offset from the upper notch 121. The valve body 1 is also provided with an outer ring air passage 131 and a stir-frying air passage 132, wherein the outer ring air passage 131 is used for providing fuel gas required by combustion in a big fire area for the kitchen range, and the stir-frying air passage 132 is used for providing fuel gas required by stir-frying after the stir-frying function is activated for the kitchen range.

Referring to fig. 1-3, the groove 23 is located at a forward first angle of the flat 21, the first angle being any one of 90 degrees, 180 degrees, or 270 degrees, although the first angle may be designed to be any angle other than 0 degrees and 160 degrees. Specifically, the groove 23 is located at a first angle in the forward direction of the flat portion 21, specifically, the groove 23 is located in the counterclockwise direction of the flat portion 21, and the included angle between the groove 23 and the flat portion 21 is the first angle. Thus, when the rotating shaft 2 is at the first angle, the contact head 31 of the position switch 3 is located in the groove 23 of the rotating shaft 2, and at this time, the position switch 3 is in an open state or an open state. Therefore, by rotating the rotating shaft 2, the position of the groove 23 is driven to change, and when the position of the groove 23 is overlapped with the contact head 31 of the position switch, the contact head 31 of the position switch can be loosened due to the fact that the cutting depth of the groove 23 is larger than the movement stroke of the contact head 31 of the position switch 3, so that the position switch 3 is in an open state and the quick-frying function is activated.

When the rotating shaft 2 rotates to a second angle, the contact pressure head 31 is inserted into the groove 23 and is switched to a release state, and the second angle is the first angle ±30 degrees. Therefore, through the left-right limiting action of the groove 23 on the touch head 31, the position switch 3 is kept unchanged in the opening state within the range of the first angle +/-30 degrees, and the position switch 3 is kept unchanged in the closing state outside the range of the first angle +/-30 degrees, so that the purpose that the product function is still realized within the specific rotation angle is achieved, namely the quick-frying function is activated within the specific rotation angle range, and the product can identify and judge the rotation angle of the rotating shaft 2.

Alternatively, the maximum cutting depth d of the groove 23 in the radial direction is 1mm, and the second angle is the first angle ±15 degrees. Alternatively, the maximum cutting depth d of the groove 23 in the radial direction is 1.5mm, and the second angle is the first angle ±25 degrees.

Referring to fig. 3-4, the end of the contact pressure head 31 near the rotating shaft 2 is provided with a semicircular head 311, and the surface of the groove 23 facing the opening is an inner arc surface 232, and the inner arc surface 232 is curved or recessed toward the inside of the rotating shaft 2. Thus, by matching the semicircular head 311 with the inner arcuate surface 232, it is ensured that the semicircular head 311 of the position switch 3 is in the recess 23 of the spindle 2 when the spindle 2 is at the first angle, and the position switch 3 is in an open or open state. When the rotating shaft 2 needs to rotate to other angles, the groove 23 of the rotating shaft 2 gradually leaves the semicircular head 311 and is slowly transited to leave by the inner arc surface 232 of the groove 23, so that the transverse force of the semicircular head 311 is reduced, the rotating hand feeling of the rotating shaft 2 is improved, and the reliability is improved. In addition, the inner arcuate surface 232 can reduce the lateral force of the semicircular head 311 and improve the accuracy of the angle determination of the rotary valve shaft 2, as compared with the vertical surface 231 of the surface of the groove 23 facing the opening thereof.

An arc-shaped transition surface 233 is formed at the junction of the shaft outer wall surface section 22 and the groove 23, and the arc-shaped transition surface 233 is curved or projected toward the radial outside of the rotating shaft 2. Thus, when the groove 23 of the rotating shaft 2 moves toward the semicircular head 311 in the counterclockwise direction, the arc-shaped transition surface 233 on the left side of the groove 23 is slowly transitioned into the groove 23, referring to fig. 6; alternatively, as the groove 23 of the spindle 2 steps away from the semicircular head 311 in a counterclockwise direction, it slowly transitions away from the groove 23 by an arcuate transition surface 233 on the right side of the groove 23, see fig. 8. Through the setting of arc transitional surface 233 for semi-circular head 311 slowly passes through and gets into recess 23 or slowly passes through and leave recess 23, in this in-process, can reduce the transverse force of semi-circular head 311 of position switch 3, increased semi-circular head 311 down force to make the rotation feel of pivot 2 become good, promote the reliability.

Specifically, the two arc-shaped transition surfaces 233 may be left and right sides of the groove 23 in the circumferential direction, and at this time, the left and right sides of the inner arc-shaped surface 232 are fixedly connected to the shaft outer wall section 22 through the two arc-shaped transition surfaces 233, respectively, although the two arc-shaped transition surfaces 233 may not be left and right sides of the groove 23 in the circumferential direction, and at this time, the two arc-shaped transition surfaces 233 may be the junction between the groove 23 and the shaft outer wall section 22. Referring to fig. 6 and 8, when the arc-shaped transition surface 233 rotates to the semicircular head portion 311, the semicircular head portion 311 abuts against the arc-shaped transition surface 233, at which time the position switch 3 is switched to the closed state. Referring to fig. 6 to 8, when the semicircular head 311 is positioned on the inner arc surface 232 and between the two arc transition surfaces 233, the semicircular head 311 is released, and the position switch 3 is in an open state, so that the position switch 3 is kept unchanged in an open state and the quick-frying function is kept activated within a specific rotation angle range, so that the rotation angle of the rotating shaft 2 can be identified and judged conveniently.

Referring to fig. 3, the bottom surface of the recess 23 is a lower horizontal surface 234. The upper guide surface 235 of the groove 23 is inclined or curved from bottom to top and outwards, but it is of course also possible to design the upper surface of the groove 23 as an upper horizontal surface. In addition, a lower guide surface 236 is formed at a lower side of the upper guide surface 235 to be curved from bottom to top and inwardly. The lower side of the inner arcuate surface 232 is fixedly connected to a lower horizontal surface 234 and the upper side is fixedly connected to an upper guide surface 235 by a lower guide surface 236.

Alternatively, the width of the groove 23 in the circumferential direction is smaller than one-half the circumference of the rotation shaft 2 and is greater than or equal to one-fourth the circumference of the rotation shaft 2. The width of the inner arcuate surface 232 in the circumferential direction is greater than the radius of the rotating shaft 2 and less than the diameter of the rotating shaft 2. Therefore, the rotation angle of the rotation trigger position switch 3 which is closed or opened can be adjusted according to the width of the inner arc surface 232 of the groove 23, so that the range judgment of the rotation angle position of the rotation shaft 2 can be realized.

Referring to fig. 1-2, the plug valve further includes a solenoid valve 4, and the solenoid valve 4 is disposed on the quick-fried air passage 132 and is used to open or close the quick-fried air passage 132. The position switch 3 is linked with the electromagnetic valve 4, specifically, when the position switch 3 is in an open state, the electromagnetic valve 4 opens the stir-frying air channel 132 to provide fuel gas required by stir-frying for the kitchen range; when the position switch 3 is in the closed state, the electromagnetic valve 4 closes the stir-frying air passage 132, so that the closing or opening of the electromagnetic valve 4 is automatically controlled according to the closed or open state of the position switch 3.

Referring to fig. 1-2, the plug valve further comprises a driving plate 5 and an ignition switch 6, wherein the driving plate 5 is rotatably arranged in the valve chamber 11 and sleeved on the outer surface of the lower end of the rotating shaft 2. The ignition switch 6 is disposed outside the side wall of the valve body 1 and is disposed near the lower notch 111, the ignition switch 6 has contacts (not shown in the figure) for controlling on/off thereof and a spring piece 61 for controlling pressing or releasing the contacts, and the spring piece 61 is inserted into the lower notch 111 and is located below the dial 5. When the rotating shaft 2 is pressed down and rotated, the rotating shaft 2 can push the elastic sheet 61 to move towards the contact direction through the driving plate 5, so that the elastic sheet 61 presses the contact, and the ignition switch 6 is turned on and emits an ignition signal.

Example 2

Referring to fig. 9 to 10, this embodiment is different from embodiment 1 in that the face of the recess 23 facing the opening thereof is a vertical face 231, i.e., the inner arc face 232 is changed to the vertical face 231. When the contact pressure head of the position switch 3 is positioned in the groove 23 with the vertical surface 231, the simple scheme of judging the rotation angle control of the rotating shaft 2 is realized.

Specifically, when the surface of the groove 23 facing the opening is the vertical surface 231 and the diameter of the rotating shaft 2 is large, the deflection angle of the rotating shaft 2 is large, the angle deficiency of the rotating shaft 2 is serious, the rotating shaft 2 is deviated from the original angle greatly, and the accuracy of judging the rotating angle position of the rotating shaft 2 is low. In addition, since the recess 23 having the vertical surface 231 is engaged with the contact head of the position switch 3, the rotation of the rotation shaft 2 applies a lateral force to the contact head, which results in lowering of the position switch 3.

In other embodiments, an arc-shaped transition surface 233 may be added at the interface between the vertical surface 231 and the shaft outer wall section 22, where the arc-shaped transition surface 233 is curved or protruding toward the radial outer side of the rotating shaft 2, so that when the semicircular head 311 is slowly transited into the groove 23 with the vertical surface 231 or slowly transited out of the groove 23 with the vertical surface 231, the transverse force of the semicircular head 311 may be reduced, so that the rotating feel of the rotating shaft 2 is improved, and the reliability is improved.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. A plug valve for a kitchen range, comprising:

the valve comprises a valve body (1) with a valve chamber (11), wherein a vertical shaft hole (12) which extends upwards and is communicated with the valve chamber (11) is fixedly arranged at the top of the valve body (1), and an upper notch (121) which is communicated with the vertical shaft hole (12) is arranged on the side wall of the vertical shaft hole (12);

the rotating shaft (2) with the flat position (21) is movably inserted into the vertical shaft hole (12), an annular control area which is positioned below the flat position (21) is arranged at the position of the rotating shaft (2) corresponding to the upper notch (121), the annular control area is divided into a shaft outer wall surface section (22) and a groove (23) which is open towards the radial outer side of the rotating shaft (2) along the circumferential direction, and the groove (23) and the flat position (21) are arranged in a staggered mode;

the position switch (3) is arranged on the outer side of the vertical shaft hole (12), the position switch (3) is provided with a contact head (31) transversely penetrating through the upper notch (121), the contact head (31) can move between the shaft outer wall surface section (22) and the groove (23) in a butt joint mode, and when the contact head (31) is inserted into the groove (23) and the contact head (31) is switched to a loosening state, the quick-frying function is activated.

2. The plug valve for a kitchen range according to claim 1, characterized in that the groove (23) is located at a first angle forward of the flat (21), the first angle being any one of 90 degrees, 180 degrees or 270 degrees.

3. Plug valve for a kitchen range according to claim 2, characterized in that the contact head (31) is inserted in the recess (23) and switches to the released state when the shaft (2) is turned to a second angle, which is the first angle ± 30 degrees.

4. A plug valve for a kitchen range according to claim 3, characterized in that the maximum cutting depth of the groove (23) in the radial direction is 1mm, the second angle being the first angle ± 15 degrees; or the maximum cutting depth of the groove (23) in the radial direction is 1.5mm, and the second angle is the first angle plus or minus 25 degrees.

5. Plug valve for kitchen ranges according to claim 1, characterized in that the end of the contact head (31) close to the rotating shaft (2) is provided with a semicircular head (311), the surface of the groove (23) facing the opening is a vertical surface (231) or an inner arc surface (232), and the inner arc surface (232) is bent or recessed towards the inside of the rotating shaft (2).

6. Plug valve for a kitchen range according to claim 1 or 5, characterized in that an arc-shaped transition surface (233) is formed at the junction of the shaft outer wall section (22) and the groove (23), which arc-shaped transition surface (233) is curved or protruding towards the radial outside of the rotary shaft (2).

7. Plug valve for a kitchen range according to claim 1 or 5, characterized in that the bottom surface of the recess (23) is a lower horizontal surface (234); the top surface of the groove (23) is an upper horizontal surface, or an upper guiding surface (235) which is inclined or bent outwards from bottom to top of the groove (23).

8. The plug valve for a kitchen range according to claim 7, characterized in that a lower guide surface (236) is formed on the underside of the upper guide surface (235) which is curved from bottom to top and inwards.

9. Plug valve for a kitchen range according to claim 1 or 5, characterized in that the width of the groove (23) in the circumferential direction is smaller than one half the circumference of the spindle (2) and larger than or equal to one quarter the circumference of the spindle (2).

10. The plug valve for a kitchen range according to any one of claims 1-5, further comprising a solenoid valve (4), wherein the valve body (1) is further provided with an outer ring air passage (131) and a stir-frying air passage (132), the solenoid valve (4) is arranged on the stir-frying air passage (132) and is used for opening or closing the stir-frying air passage (132), and the position switch (3) is used for linking the solenoid valve (4).

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