CN220470705U - Sectional valve - Google Patents

Abstract

The utility model provides a section valve which is applied to a kitchen range; the segment valve comprises a valve body and a closure member, wherein the closure member is rotatably arranged in the valve body and is provided with a first limit position and a second limit position; the valve body comprises an inner ring air supply channel, an outer ring air supply channel and a middle ring air supply channel; the closure comprises an inner circulation flow hole, an outer circulation flow hole and a middle ring flow hole which are arranged along the axial direction of the closure; when the cooker is in a big fire stop, the inner circulation flow hole and the outer ring flow hole are respectively communicated with the inner ring air supply channel and the outer ring air supply channel, and the middle circulation flow hole is communicated with or misplaced with the outer ring air supply channel; the middle circulation flow hole is also used for communicating with the middle ring air supply channel in the process that the closure is rotated from the first limit position to the second limit position. The structure of the three-section gas flow channel enlarges the range of the range fire, improves the peak value of the maximum fire of the section valve through multiplexing or avoiding the middle circulation flow holes, and also avoids the influence on the installation and popularization of the section valve due to the overhigh valve body.

Description

Sectional valve

Technical Field

The utility model relates to the field of combustors, in particular to a segment valve.

Background

The section valve is a device for controlling the fire power of the burner, and the section valve realizes section adjustment (gas flow adjustment) by arranging a plurality of flow holes with different sizes at intervals on the side part of a valve body closure and correspondingly connecting the flow holes with different sizes with a gas channel of an inner ring or an outer ring when the valve rod is rotated to drive the closure to rotate. The existing segment valve has the defects that the number of firepower gears corresponding to the segment valve is small due to the limitation of the size of a closure and the number of gas channels, or the valve body is too high due to the addition of the gas channels, so that the valve body is difficult to adapt to various environments, and the popularization of products is first caused. The variety of food on user's dining table is increasing now, under the condition that the firepower that the culinary art used is also different to different food, current firepower gear has not enough satisfied user's culinary art demand, so because of the firepower gear is not enough when the user has to adopt lower gear to cook, both wasted the gas, make the food that cooks out lose the taste that should have originally again, and then cause user's use to experience poor problem.

Disclosure of Invention

The utility model aims to overcome the defects that the adjustable gear range is smaller and the valve body is too high to install and popularize in the prior art.

The utility model solves the technical problems by the following technical scheme:

a segment valve, which is applied to a kitchen range; the segment valve comprises a valve body and a closure member, wherein the closure member is rotatably arranged in the valve body and is provided with a first limit position and a second limit position; the valve body comprises an inner ring air supply channel, an outer ring air supply channel and a middle ring air supply channel; the closure comprises an inner circulation flow hole, an outer circulation flow hole and a middle ring flow hole which are arranged along the axial direction of the closure; when the cooker is in a big fire stop, the inner circulation flow hole and the outer ring flow hole are respectively communicated with the inner ring air supply channel and the outer ring air supply channel, and the middle circulation flow hole is communicated with or misplaced with the outer ring air supply channel; the middle circulation flow hole is also used for communicating with the middle ring air supply channel in the process that the closure is rotated from the first limit position to the second limit position.

In the scheme, the gas flow can be effectively controlled by controlling the rotation angle of the closure member in the valve body; the valve body is provided with an inner ring air supply channel, an outer ring air supply channel and a middle ring air supply channel, and three sections of gas circulation channels are provided for the section valve, so that the rotation of the closing element to different angles can be controlled more flexibly, for example, the gas flow corresponding to the section valve can rotate from a first limit position to a second limit position, and the three sections of air supply can expand the range of the gas flow and increase the quantity of gas circulation during the maximum fire. When the kitchen range is in a big fire gear, the segment valve provides two ends of fires, inner ring fires and outer ring fires, if in this moment circulation flow hole and outer ring air feed channel intercommunication, outer ring air feed channel simultaneously with outer circulation flow hole and middle ring flow hole intercommunication, also can improve the gas flow under the structure that does not enlarge outer circulation flow hole, on the one hand improved the peak value of the biggest fire of segment valve, on the other hand also avoided the too high drawback of valve body that produces through setting up the mode that great outer circulation flow hole improved the gas flow through the multiplexing mode of middle ring flow hole. The gas flow range of the closure in the rotating process is enlarged, if the middle circulation flow hole is not communicated with the outer ring gas supply channel, the height of the closure does not need to be increased along the axial direction of the closure, the height of the section valve is reduced, the installation of the section valve is facilitated, and the application range of the section valve can be enlarged.

Preferably, the outer ring flow hole extends along the axis direction of the closure by a preset distance, the preset distance is matched with the caliber of the outer ring air supply channel, and the projection part of the middle circulation flow hole and the outer circulation flow hole in the axis direction of the closure is overlapped; when the kitchen range is in a big fire stop, the middle circulation flow hole is staggered with the outer ring air supply channel.

In the scheme, the size of the outer circulation flow hole in the axis direction of the closure is larger and is matched with the caliber of the outer ring air supply channel, so that the gas flow flux when the outer ring flow hole is communicated with the outer ring air supply channel is improved, the projection parts of the middle circulation flow hole and the outer ring flow hole are overlapped, the superposition height of the middle circulation flow hole and the outer ring flow hole in the axis direction of the closure is reduced, the height of the segment valve is reduced, and the middle circulation flow hole and the outer ring air supply channel are not communicated due to dislocation of the middle circulation flow hole and the outer circulation flow hole, and the middle ring air supply channel, the outer ring air supply channel and the inner ring air supply channel on the valve body are in one-to-one correspondence communication, so that the segment valve is more accurate in gas flow flux control.

Preferably, a gap distance exists between the middle circulation flow hole and the outer ring air supply channel in the process of rotating from the first limit position to the second limit position; and when the middle ring flow hole rotates to be closest to the outer ring air supply channel, a sealing distance is arranged between the middle ring flow hole and the outer ring air supply channel so as to enable the middle ring flow hole and the outer ring air supply channel to be blocked relatively.

In the scheme, the interval distance is additionally arranged between the middle ring flow hole and the outer ring air supply channel, so that the middle ring flow hole cannot be communicated with the outer ring air supply channel in the process of rotating the closure from the first limit position to the second limit position, the reliability of fluid circulation between each flow hole and each air supply channel is improved, the height of the closure is reduced, and meanwhile, the one-to-one correspondence relation between each flow hole and each air supply channel can be still maintained, and the fluid circulation can be regulated and controlled more accurately.

Preferably, openings at two ends of the middle circulation flow hole are respectively arranged on the inner side wall and the outer side wall of the closure member and used for penetrating the closure member, and an opening at one end of the inner side wall of the closure member is lower than an opening at one end of the outer side wall of the closure member.

In this scheme, the inclination of middle ring flow hole both ends opening can adjust the velocity of flow and the flow of fluid in the pipeline to optimize fluid distribution and flow effect, more accurate and efficient fluid flow and distribution control. Therefore, the design can effectively control the direction and the speed of the fluid flow, and realize more accurate and efficient fluid control effect.

Preferably, the inner circulation flow holes and the outer ring flow holes are respectively arranged in a plurality, and the middle ring flow hole is arranged in one; the inner circulation flow holes are arranged at intervals along the circumferential direction of the closure, the outer circulation flow holes are arranged at intervals along the circumferential direction of the closure, and the interval distances are arranged among the middle circulation flow holes, the inner circulation flow holes and the outer circulation flow holes; the central angle corresponding to the inner circulation flow holes is larger than the central angle corresponding to the outer ring flow holes, and the central angle corresponding to the inner ring flow holes is partially overlapped with the central angle corresponding to the outer circulation flow holes; the middle ring flow hole is arranged outside the central angle corresponding to the outer ring flow hole.

In the scheme, the number of the middle circulation flow holes is smaller than the number of the outer circulation flow holes and the inner circulation flow holes, so that the middle circulation fire only occurs at a specific angle, and the range of the angle is smaller; on the one hand, the middle circulation flow hole and the outer circulation flow hole are partially overlapped in the axial direction of the closure, so that the condition that the middle circulation flow hole is communicated with the outer ring air supply channel is avoided in the rotation process of the closure, on the other hand, the middle circulation flow hole is arranged outside a central angle corresponding to the outer circulation flow hole, when the outer circulation flow hole is communicated with the outer ring air supply channel, the middle circulation flow hole is positioned at the outer side of the outer ring flow hole, the middle circulation flow hole is prevented from being communicated with the outer ring air supply channel, and the effect can be further improved by matching with the spacing distance. Thereby achieving the optimal flow regulating effect. A more accurate and efficient fluid flow control effect is achieved.

Preferably, the middle ring flow holes occupy a middle ring area in the circumferential direction of the closure, and the outer ring flow holes occupy an outer ring area in the circumferential direction of the closure; along the axis direction of the closure, the projection of the middle ring region is positioned in the outer ring region; the common extension length of the middle circulation flow hole and the outer circulation flow hole in the axial direction of the closure is matched with the caliber of the outer ring air supply channel; when the kitchen range is in a big fire stop, the middle circulation flow hole is communicated with the outer ring air supply channel.

In this scheme, the projection in middle ring region is located the regional in outer loop and makes well circulation flow hole and outer loop flow hole correspond, and when the closed son rotated preset angle, well circulation flow hole and outer loop flow hole can communicate with outer loop air feed channel simultaneously, also can improve gas flow under the structure that does not enlarge outer circulation flow hole this moment, has improved the peak value of the biggest fire of section position valve on the one hand, on the other hand also avoided the too high drawback of valve body height that produces through setting up the mode that great outer circulation flow hole improved gas flow through middle ring flow hole multiplexing mode.

Preferably, the number of the outer circulation flow holes is a plurality, and the number of the middle circulation flow holes is at least one; the central angle corresponding to the middle ring flow hole is smaller than the central angles corresponding to the plurality of outer ring flow holes; the central angles corresponding to the middle ring flow holes are positioned at the middle parts of the central angles corresponding to the outer ring flow holes.

In the scheme, based on the arrangement of the circular rings, the central angle corresponds to the included angle between the connecting lines of the flow holes at the two far ends and the central point. The concept of a lower central angle of an intermediate ring flow orifice compared to the surrounding plurality of outer ring flow orifices means that the angle (range) covered by the outer ring flow orifice is greater, and by applying this design to different positions and numbers of flow orifices, a more accurate and efficient fluid control effect can be achieved.

In the scheme, because the middle ring flow holes are multiplexed and can be communicated with the middle ring air supply channel and the outer ring air supply channel, the central angles of the middle ring flow holes are positioned at the middle parts of the central angles corresponding to the outer ring flow holes, so that the middle ring flow holes and the openings of the outer ring air supply channels are ensured to move simultaneously when part of the outer ring flow holes move to the outer ring air supply channel, and different gas flow rates and corresponding fire discharging sizes can be controlled by controlling different rotation angles of the closure members through adjusting the positions and angles of the corresponding middle parts during manufacturing, so that more accurate and efficient gas control and gas flow optimizing effects are realized.

In the scheme, the middle circulation flow holes and the outer ring flow holes are arranged at intervals along the axial direction of the closure member; or the middle circulation flow hole and the outer ring flow hole are communicated along the axial direction of the closure to form a maximum hole.

In this solution, the arrangement of the flow holes allows finer control of the distribution and velocity of the fluid in the flow direction. If the middle circulation flow holes and the outer ring flow holes are arranged at intervals, vortex and energy loss can be reduced to a certain extent, the interval distance can influence the height of the closure, and the fluid flows in the same axial direction can be mutually coordinated and balanced. If the flow holes are communicated in the axial direction into one maximum hole, a larger fluid flow passage may be formed, so that the fluid flow is smoother and more stable. Thus, both configurations can optimize fluid flow and improve the efficiency of fluid control.

Preferably, the interval between the middle ring flow hole and the outer ring flow hole closest to the middle ring flow hole is smaller than the diameter of the outer ring air supply channel port; or the projection of the largest hole in the axial direction of the closure member is partially positioned in the projection range of the outer ring air supply channel in the axial direction of the closure member, and the projection of the largest hole in the axial direction of the closure member is partially positioned in the projection range of the middle ring air supply channel in the axial direction of the closure member.

In the scheme, when the interval between the middle ring flow hole and the nearest outer ring flow hole is smaller than the diameter of the outer ring air supply channel opening, the middle ring flow hole and the outer ring flow hole can simultaneously fall into the opening of the outer ring air supply channel when the closure rotates to a preset angle; the other scheme is that the maximum hole is positioned in the projection range in the axial direction of the closed valve, namely, when the middle ring flow hole and the outer ring flow hole are communicated into a maximum hole along the axial direction, the maximum hole can be communicated with the outer ring air supply channel and the middle ring air supply channel, and the multiplexing effect of the middle ring flow hole is ensured while the fluid channel is enlarged.

Preferably, the closure is an outer closure, the outer side wall of the outer closure is arranged in the accommodating cavity of the valve body, and the inner circulation flow hole, the outer circulation flow hole and the middle ring flow hole penetrate through the outer side wall of the outer closure; or the closure comprises an inner closure and an outer closure, wherein the inner closure is arranged in the cavity of the outer closure, the outer side wall of the inner closure is attached to the inner side wall of the outer closure, and the length of the inner closure is not greater than that of the outer closure.

In the scheme, the closure member can directly select the outer closure member, and the outer closure member is arranged in the accommodating cavity of the valve body and is abutted with the inner side wall of the accommodating cavity of the valve body, so that fuel gas cannot flow out from a gap between the outer closure member and the valve body; the sealing between the inner closure and the outer closure forms a structure capable of effectively controlling the gas flow and the pressure, the outer side wall of the inner closure is attached to the inner side wall of the outer closure, and the design not only can effectively isolate the gas flow, but also can prevent the gas leakage and the energy consumption and prevent the flow hole from being blocked; meanwhile, the length of the inner closure is not greater than that of the outer closure, so that the other component for controlling the rotation of the closure can be conveniently abutted with the closure without independently arranging a structure on the outer closure or the outer part or the upper part of the outer closure for being abutted with a control component, the overall height of the closure is reduced, the height of the valve body is further reduced, the installation is convenient, and the requirements under different use environments can be met.

Preferably, when the closure includes an inner closure and an outer closure, the inner closure includes a plurality of inner flow holes, the outer closure includes a plurality of outer flow holes, the plurality of inner flow holes and the plurality of outer flow holes are in one-to-one correspondence and communicate, and form an inner circulation flow hole, an outer circulation flow hole, and a middle ring flow hole; the inner flow holes penetrate through the side wall of the inner closure, the outer flow holes penetrate through the side wall of the outer closure, and part of the inner flow holes on the inner closure are close to the edges of the corresponding outer flow holes on the outer closure along the axial direction of the closure; or, the side wall of the inner closure is provided with a plurality of grooves, the grooves of the inner closure are arranged along the circumferential direction, the inner flow holes are arranged on the bottom wall or the side wall of the groove, and the outer flow holes are communicated with the groove.

In the scheme, the design of the plurality of flow holes further enhances the accuracy and flexibility of gas control; the inner flow holes and the outer flow holes are in one-to-one correspondence and are connected, so that the flow direction and the flow rate of the gas can be effectively controlled. The inner flow holes and the outer flow holes which respectively penetrate through the inner and outer closure members are at least partially overlapped, and in this case, the inner flow holes and the outer flow holes are communicated through the overlapped parts, so that the design mode has a simple structure, and the complex manufacturing process of the inner closure members is avoided; or, through be equipped with the recess in the lateral wall of inner closure and arrange in the interior flow hole of recess diapire and realize with outer flow hole intercommunication, the gas in interior flow hole can gather in the recess, again by recess and outer flow hole intercommunication, this kind of structure can improve the circulation rate of gas, can improve the precision of gas control, accords with the demand of user under different service environment, realizes more efficient gas utilization and control.

Preferably, the middle ring air supply channel and the outer ring air supply channel have a spacing distance in the projection of the axial direction of the accommodating cavity; or, the middle ring air supply channel and the projection part of the outer ring air supply channel in the axial direction of the accommodating cavity are overlapped.

The gas supply channels in the axial direction of the accommodating cavity can be sequentially arranged and spaced at intervals, so that the flow direction of gas can be well controlled, a better flow adjusting effect is achieved, and energy loss is reduced.

The utility model has the positive progress effects that:

the gas flow can be effectively controlled by controlling the rotation angle of the closure member in the valve body; the valve body is provided with an inner ring air supply channel, an outer ring air supply channel and a middle ring air supply channel, and three sections of gas circulation channels are provided for the section valve, so that the rotation of the closing element to different angles can be controlled more flexibly, for example, the gas flow corresponding to the section valve can rotate from a first limit position to a second limit position, and the three sections of air supply can expand the range of the gas flow and increase the quantity of gas circulation during the maximum fire. When the kitchen range is in a big fire gear, the segment valve provides two ends of fires, inner ring fires and outer ring fires, if in this moment circulation flow hole and outer ring air feed channel intercommunication, outer ring air feed channel simultaneously with outer circulation flow hole and middle ring flow hole intercommunication, also can improve the gas flow under the structure that does not enlarge outer circulation flow hole, on the one hand improved the peak value of the biggest fire of segment valve, on the other hand also avoided the too high drawback of valve body that produces through setting up the mode that great outer circulation flow hole improved the gas flow through the multiplexing mode of middle ring flow hole. The gas flow range of the closure in the rotating process is enlarged, if the middle circulation flow hole is not communicated with the outer ring gas supply channel, the height of the closure does not need to be increased along the axial direction of the closure, the height of the section valve is reduced, the installation of the section valve is facilitated, and the application range of the section valve can be enlarged.

Drawings

FIG. 1 is a schematic diagram of a closure in embodiment 1 of the present utility model;

FIG. 2 is a schematic view of the structure of the closure in accordance with another embodiment 1 of the present utility model;

FIG. 3 is a schematic view of the internal structure of FIG. 2 along the line B-B;

FIG. 4 is a schematic view of the internal structure of FIG. 2 along the line D-D;

FIG. 5 is a schematic view showing the structure of the inner closure in embodiment 1 of the present utility model;

FIG. 6 is a schematic view showing the structure of the inner closure in accordance with another embodiment 1 of the present utility model;

FIG. 7 is a schematic diagram showing the structure of the closure member and the valve stem according to embodiment 1 of the present utility model;

FIG. 8 is a schematic diagram of a segment valve according to the present utility model;

FIG. 9 is a schematic view of the structure of the valve body and the closure member of the present utility model;

FIG. 10 is a schematic view of the structure of the valve body of the present utility model;

FIG. 11 is a schematic view of another angle of the valve body of the present utility model;

FIG. 12 is a cross-sectional view taken along line A-A of FIG. 9;

FIG. 13 is a cross-sectional view taken along line C-C of FIG. 11;

FIG. 14 is a cross-sectional view taken along line D-D of FIG. 11;

FIG. 15 is a schematic view of the internal structure of FIG. 8 (including the outer ring air supply channel);

FIG. 16 is a schematic view showing the structure of a closure in embodiment 2 of the present utility model;

FIG. 17 is a schematic view showing the structure of the closure in accordance with another embodiment 2 of the present utility model;

FIG. 18 is a schematic view of the internal structure of FIG. 2 along the line B-B;

FIG. 19 is a schematic view of the internal structure of FIG. 2 along the line D-D;

FIG. 20 is a schematic view showing the structure of the inner closure in embodiment 2 of the present utility model;

FIG. 21 is a schematic view showing the structure of the inner closure in accordance with another embodiment 2 of the present utility model;

FIG. 22 is a schematic diagram showing the structure of the closure member and the valve stem according to embodiment 2 of the present utility model.

Drawings

100. Sectional valve

10. Closure

11. Inner closure

110. Abutment portion

111. Inner flow orifice

112. Groove

12. External closure

120. Outflow orifice

13. Internal circulation flow orifice

14. External circulation flow hole

15. Middle circulation flow hole

20. Valve body

201. Inner ring air supply channel

2010. Inner ring passage opening

202. Outer ring air supply channel

2020. Outer ring passage opening

203. Middle ring air supply channel

2030 middle ring channel opening

204 receiving cavity

30 valve rod

31 projection

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and thus the present utility model is not limited to the scope of the described embodiments.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Example 1

Referring to fig. 1 to 15, embodiment 1 of the present utility model provides a segment valve 100, wherein the segment valve 100 is applied to a kitchen range; the segment valve 100 comprises a valve body 20 and a closure member 10, wherein the closure member 10 is rotatably arranged in the valve body 20 and has a first limit position and a second limit position; the valve body 20 includes an inner ring air supply passage 201, an outer ring air supply passage 202, and an intermediate ring air supply passage 203; the closure 10 includes an inner circulation flow hole 13, an outer circulation flow hole 14 and a middle circulation flow hole 15 provided along an axial direction thereof; when the cooker is in a big fire gear, the inner ring flow hole 13 and the outer ring flow hole 14 are respectively communicated with the inner ring air supply channel 201 and the outer ring air supply channel 202, and the middle ring flow hole 15 is staggered with the outer ring air supply channel 202; the middle ring flow orifice 15 is also adapted to communicate with the middle ring air supply channel 203 during rotation of the closure 10 from the first limit position to the second limit position.

In this embodiment, the first limit position is the initial position of the closure 10 when the stove is open, and the second limit position is the position of the closure 10 when the maximum angle that can be rotated in the valve body 20 is reached. The flow rate of the gas can be effectively controlled by controlling the angle at which the shutter 10 rotates in the valve body 20; the valve body 20 is provided with an inner ring air supply channel 201, an outer ring air supply channel 202 and an intermediate ring air supply channel 203, and three sections of gas circulation channels are provided for the segment valve 100, so that the rotation of the closure 10 to different angles, such as the gas flow corresponding to the segment valve 100 when the closure rotates from a first limit position to a second limit position, can be controlled more flexibly, and the three sections of air supply can expand the range of the gas flow and increase the quantity of gas circulation when the fire is at maximum.

In this embodiment, when the stove is in a large fire range, the segment valve 100 provides two ends of fire, and the two ends of fire are composed of an inner ring fire and an outer ring fire, as shown in fig. 1 to 6, although the middle ring flow hole 15 and the outer ring flow hole 14 are partially overlapped in the height direction, the effect of reducing the heights of the closure 10 and the segment valve 100 is achieved, but because the angles of the middle ring flow hole 15 and the outer ring flow hole 14 in the circumferential direction of the closure 10 are different, at this time, the outer ring air supply channel 202 is only communicated with the outer ring flow hole 14, and the middle ring flow hole 15 is not communicated with the outer ring air supply channel 202 by mistake, so that the gas flow and the fire outlet size of the stove can still be accurately controlled.

As shown in fig. 1, the outer circulation flow hole 14 extends along the axis direction of the closure 10 by a preset distance, the preset distance is adapted to the caliber of the outer ring air supply channel 202, and the middle ring flow hole 15 overlaps with the projection part of the outer circulation flow hole 14 in the axis direction of the closure 10; when the kitchen range is in a big fire stop, the middle ring flow hole 15 and the outer ring air supply channel 202 are misplaced. The size of the outer circulation flow hole 14 in the axis direction of the closure 10 is larger and is matched with the caliber of the outer ring air supply channel 202, so that the gas flow rate when the outer ring flow hole 14 is communicated with the outer ring air supply channel 202 is improved, the projection parts of the middle ring flow hole 15 and the outer circulation flow hole 14 are overlapped, the overlapped height of the middle ring flow hole 15 and the outer ring flow hole 14 in the axis direction of the closure 10 is reduced, the height of the segment valve 100 is reduced, and the middle ring flow hole 15 and the outer ring air supply channel 202 are not communicated in a dislocation manner, so that the one-to-one communication relation between the middle ring flow hole 15, the outer ring flow hole 14 and the inner ring flow hole 13 and the middle ring air supply channel 203, the outer ring air supply channel 202 and the inner ring air supply channel 201 on the valve body 20 is ensured, and the segment valve 100 can control the gas flow rate more accurately.

The middle circulation flow hole 15 has a spacing distance with the outer ring air supply channel 202 in the process of rotating from the first limit position to the second limit position; and when the middle ring flow hole 15 rotates to be closest to the outer ring air supply channel 202, a sealing distance is arranged between the middle ring flow hole 15 and the outer ring air supply channel 202 so as to enable the middle ring flow hole 15 and the outer ring air supply channel 202 to be blocked relatively. The additional arrangement of the interval distance between the middle ring flow hole 15 and the outer ring air supply channel 202 ensures that the middle ring flow hole 15 is not communicated with the outer ring air supply channel 202 in the process of rotating the closure 10 from the first limit position to the second limit position, and improves the reliability of fluid circulation between each flow hole and each air supply channel, so that the height of the closure 10 is reduced, and meanwhile, the one-to-one correspondence relation between each flow hole and each air supply channel can be maintained, and the fluid circulation can be regulated and controlled more accurately.

As shown in fig. 1 and 2, openings at two ends of the middle ring flow hole 15 are respectively disposed on an inner side wall and an outer side wall of the closure 10 to penetrate the closure 10, and an opening at one end of the middle ring flow hole 15 located on the inner side wall of the closure 10 is lower than an opening at one end of the middle ring flow hole 15 located on the outer side wall of the closure 10. The inclination angles of the openings at the two ends of the middle circulation flow holes 15 can adjust the flow speed and the flow rate of the fuel gas in the pipeline, so that the fuel gas distribution and the flow effect are optimized, and the fuel gas flow and the distribution are controlled more accurately and efficiently. Therefore, the design can effectively control the direction and speed of the gas flow, and realize more accurate and efficient gas control effect.

As shown in fig. 1 to 6, in embodiment 1, the inner ring flow holes 13 and the outer ring flow holes 14 are provided in plurality, respectively, and the middle ring flow holes 15 are provided in one; the plurality of inner circulation flow holes 13 are arranged at intervals along the circumferential direction of the closure 10, the plurality of outer circulation flow holes 14 are arranged at intervals along the circumferential direction of the closure 10, and the interval distance is arranged between the middle ring flow hole 15 and the inner ring flow holes 13 and the outer circulation flow holes 14; the central angle corresponding to the inner circulation flow holes 13 is larger than the central angle corresponding to the outer ring flow holes 14, and the central angle corresponding to the inner circulation flow holes 13 is partially overlapped with the central angle corresponding to the outer circulation flow holes 14; the middle circulation flow hole 15 is arranged outside the central angle corresponding to the outer circulation flow hole 14. The number of the middle circulation flow holes 15 is smaller than the number of the outer circulation flow holes 14 and the inner circulation flow holes 13, so that the middle circulation fire only occurs at a specific angle, and the range of the angle is smaller; on the one hand, the middle circulation flow hole 15 and the outer circulation flow hole 14 are partially overlapped in height in the axial direction of the closure 10, so that the condition that the middle circulation flow hole 15 is communicated with the outer ring air supply channel 202 is avoided in the rotation process of the closure 10, on the other hand, the middle circulation flow hole 15 is arranged outside the central angle corresponding to the outer circulation flow hole 14, and when the outer ring flow hole 14 is communicated with the outer ring air supply channel 202, the middle circulation flow hole 15 is positioned at the outer side of the outer ring flow hole 14, so that the middle circulation flow hole 15 is prevented from being communicated with the outer ring air supply channel 202, and the above-mentioned interval distance is matched, so that the effect can be further improved. Thereby achieving the optimal flow regulating effect. A more accurate and efficient fluid flow control effect is achieved.

Example 2

Referring to fig. 8 to 22, embodiment 2 of the present utility model provides another segment valve 100, in which the structure of the closure 10 is different from that of the closure 10 of embodiment 1, and the structure of the closure 10 of embodiment 2 is shown in fig. 16 to 21, and the middle ring flow hole 15 of the closure 10 and the ring flow hole 15 of the outer ring flow hole 14 are not overlapped in height and are partially or completely overlapped in angle. A middle ring region occupied in the circumferential direction of the closure 10, and an outer ring region occupied in the circumferential direction of the closure 10 by the outer ring flow holes 14; along the axial direction of the closure 10, the projection of the middle ring region is located within the outer ring region; the common extension length of the middle circulation flow holes 15 and the outer circulation flow holes 14 in the axial direction of the closure 10 is matched with the caliber of the outer ring air supply channel 202; when the stove is in a big fire gear, the middle ring flow hole 15 is communicated with the outer ring air supply channel 202. The projection of the middle ring area is located in the outer ring area, so that the middle ring flow hole 15 corresponds to the outer ring flow hole 14, when the closure 10 rotates to a preset angle, the middle ring flow hole 15 and the outer ring flow hole 14 can be simultaneously communicated with the outer ring air supply channel 202, at the moment, the gas flow can be improved under the structure without expanding the outer ring flow hole 14, on one hand, the peak value of the maximum fire of the segment valve 100 is improved, and on the other hand, the defect of overhigh height of the valve body 20 caused by the mode of arranging a larger outer ring flow hole 14 to improve the gas flow is avoided by the mode of multiplexing the middle ring flow hole 15.

As shown in fig. 16 to 20, the number of the outer circulation flow holes 14 is plural, and the number of the middle circulation flow holes 15 is at least one; the central angle corresponding to the middle circulation flow holes 15 is smaller than the central angles corresponding to the outer circulation flow holes 14; the central angle corresponding to the middle circulation flow holes 15 is located at the middle part of the central angles corresponding to the plurality of outer circulation flow holes 14. Based on the circular arrangement, the central angle corresponds to the included angle between the connecting line of the two flow holes at the far ends and the center of the circle. The concept of a smaller central angle of one medium annular flow orifice 15 compared to the surrounding plurality of outer annular flow orifices 14 means that the outer annular flow orifice 14 covers a larger angle (range), and by applying this design in different positions and numbers of flow orifices, a more accurate and efficient fluid control effect can be achieved.

In this embodiment, since the middle circulation flow holes 15 are multiplexed and can be communicated with the middle circulation gas supply channel 203 and the outer ring gas supply channel 202, the central angles of the middle circulation flow holes 15 are located at the middle parts of the central angles corresponding to the outer circulation flow holes 14, so that when part of the outer ring flow holes 14 move to the outer ring gas supply channel 202, the middle circulation flow holes 15 move to the opening of the outer ring gas supply channel 202 simultaneously, and by adjusting the positions and angles of the corresponding middle parts during manufacturing, different gas flow rates and corresponding fire discharging sizes can be controlled by controlling different rotation angles of the closure 10, so that more accurate and efficient gas control and gas flow optimization effects are realized.

In the present embodiment, as shown in fig. 16 and 17, the middle ring flow holes 15 are provided at a distance from the outer ring flow holes 14 along the axial direction of the closure 10. The arrangement of the flow apertures allows finer control over the distribution and velocity of the fluid in the direction of flow. If the middle circulation flow holes 15 and the outer ring flow holes 14 are spaced apart, the vortex and energy loss can be reduced to some extent, and the spacing distance can affect the height of the closure 10, the fluid flows in the same axial direction can be mutually coordinated and balanced.

In other alternative embodiments, the middle circulation flow hole 15 and the outer ring flow hole 14 are communicated along the axial direction of the closure 10 to form a maximum hole. If the flow holes are communicated in the axial direction into one maximum hole, a larger fluid flow passage may be formed, so that the fluid flow is smoother and more stable. Thus, both configurations can optimize fluid flow and improve the efficiency of fluid control.

In this embodiment, the interval between the middle ring flow hole 15 and the outer ring flow hole 14 closest thereto is smaller than the diameter of the mouth of the outer ring gas supply passage 202; or the projection of the largest hole in the axial direction of the shutter 10 is partially located in the projection range of the outer ring air supply channel 202 in the axial direction of the shutter 10, and the projection of the largest hole in the axial direction of the shutter 10 is partially located in the projection range of the middle ring air supply channel 203 in the axial direction of the shutter 10. As shown in fig. 9 and 16, when the interval between the middle ring flow hole 15 and the nearest outer ring flow hole 14 is smaller than the diameter of the opening of the outer ring air supply channel 202, and the middle ring flow hole 15 and the outer ring flow hole 14 can simultaneously fall into the opening of the outer ring air supply channel 202 when the closure 10 rotates to a preset angle; another solution is that the maximum hole is located at a position within the projection range of the axial direction of the shutter 10, that is, when the middle and outer circulation flow holes 14 are communicated into one maximum hole along the axial direction, the maximum hole can be communicated with the outer ring air supply channel 202 and the middle ring air supply channel 203, so that the multiplexing effect of the middle circulation flow holes 15 is ensured while the fluid channel is enlarged.

In some embodiments, the closure 10 includes only the outer closure 12, the outer side wall of the outer closure 12 is disposed within the receiving cavity 204 of the valve body 20, and the inner ring flow hole 13, the outer ring flow hole 14, and the middle ring flow hole 15 all extend through the outer side wall of the outer closure 12; the closure 10 may directly select the outer closure 12, and the outer closure 12 is disposed in the accommodating cavity 204 of the valve body 20 and abuts against the inner sidewall of the accommodating cavity 204 of the valve body 20, so that the fuel gas does not flow out from the gap between the outer closure 12 and the valve body 20, and the inner ring flow hole 13, the outer ring flow hole 14 and the middle ring flow hole 15 penetrating the outer closure 12 are respectively communicated with the inner ring channel opening 2010, the outer ring channel opening 2020 and the middle ring channel opening 2030.

As shown in fig. 17 and 20, in the present embodiment, the closure 10 includes an inner closure 11 and an outer closure 12, the inner closure 11 is disposed in a chamber of the outer closure 12, and an outer side wall of the inner closure 11 is bonded to an inner side wall of the outer closure 12, and a length of the inner closure 11 is not greater than a length of the outer closure 12. The sealing between the inner closure element 11 and the outer closure element 12 and between the two closure elements 10 forms a structure capable of effectively controlling the gas flow and pressure, and the outer side wall of the inner closure element 11 is attached to the inner side wall of the outer closure element 12; meanwhile, the length of the inner closure member 11 is not greater than that of the outer closure member 12, so that the other component for controlling the rotation of the closure member 10 can be conveniently abutted with the closure member 10 without independently arranging a structure on the outer closure member 12 or on the outer portion or the upper portion of the outer closure member 12 for being abutted with the control component, thereby reducing the overall height of the closure member 10, further reducing the height of the valve body 20, facilitating the installation and being applicable to the requirements under different use environments.

As shown in fig. 16 to 21, when the closure 10 includes the inner closure 11 and the outer closure 12, the inner closure 11 includes a plurality of inner flow holes 111, the outer closure 12 includes a plurality of outer flow holes 120, the plurality of inner flow holes 111 and the plurality of outer flow holes 120 are in one-to-one correspondence and communicate, and an inner circulation flow hole 13, an outer circulation flow hole 14, and an intermediate circulation flow hole 15 are formed; the inner flow holes 111 penetrate through the side wall of the inner closure 11, the outer flow holes 120 penetrate through the side wall of the outer closure 12, and along the axial direction of the closure 10, part of the inner flow holes 111 on the inner closure 11 are close to the edges of the corresponding outer flow holes 120 on the outer closure 12; or, the side wall of the inner closure 11 is provided with a plurality of grooves 112, the grooves 112 of the inner closure 11 are arranged along the circumferential direction, the inner flow holes 111 are arranged on the bottom wall or the side wall of the grooves 112, and the outer flow holes 120 are communicated with the grooves 112. The design of the plurality of flow holes further enhances the accuracy and flexibility of gas control; the inner and outer flow holes 120 are one-to-one and connected, and can effectively control the flow direction and flow rate of the gas. The inner flow holes 111 and the outer flow holes 120 which respectively penetrate through the inner and outer closure members 12 are at least partially overlapped, in this case, the inner flow holes 111 and the outer flow holes 120 are communicated through the overlapped parts, and the design mode has a simple structure, so that the complicated manufacturing process of the inner closure members 11 is avoided; or, through the lateral wall that is equipped with recess 112 and arranges in the interior flow hole 111 of recess 112 diapire and realize with outer flow hole 120 intercommunication, the gas in interior flow hole 111 can gather in recess 112, again by recess 112 and outer flow hole 120 intercommunication, this kind of structure can improve the circulation rate of gas, can improve the precision of gas control, accords with the demand of user under different service environment, realizes more efficient gas utilization and control.

As shown in fig. 9 to 15, the valve body 20 of the segment valve 100 is provided to be respectively adapted to the structures of the closure 10 in embodiment 1 and embodiment 2, and as shown in fig. 13, the middle ring air supply channel 203 and the outer ring air supply channel 202 are projected in the axial direction of the accommodating chamber 204 with a spacing distance; the sequential arrangement and spacing of the gas supply channels in the axial direction of the receiving chamber 204 can better control the flow direction of the gas, thereby achieving a better flow regulation effect and reducing energy losses.

The valve body 20 is not easily installed when the height is too high, thereby affecting its practicality. As shown in fig. 12, the middle ring air supply passage 203 overlaps with the projection of the outer ring air supply passage 202 in the axial direction of the accommodation chamber 204. At this time, the height of the valve body 20 can be reduced, so that the sectional position valve 100 is convenient to install and use in a kitchen range. When the segment valve 100 is required to be adjusted to the maximum fire of the fuel gas, the segment valve consists of an inner ring and an outer ring, namely, when the closure 10 rotates by a first angle, the fuel gas is in the maximum fire state, at the moment, the outer ring and the inner ring are out of fire, and because the middle circulation flow holes 15 are multiplexed, the middle circulation flow holes 15 are not communicated with the middle ring air supply channel 203 at the moment, but are communicated with the outer circulation flow holes 14 together with the outer ring air supply channel 202, at the moment, the middle ring flow holes 15 and the outer circulation flow holes 14 on the closure 10 fall into the opening of the outer ring channel, and the structure does not need to be provided with a larger flow hole on the closure 10 for providing the required fuel gas flow flux during the maximum fire, so that the segment valve 100 is prevented from being excessively high. The first angle at maximum fire may be specifically set to a numerical range according to a specific installation and use scenario, for example, the first angle at maximum fire in the present utility model is 90 °, and may be other alternative angles.

As shown in fig. 7 and 22, fig. 7 is a schematic structural diagram of the cooperation between the closure member and the valve stem in embodiment 1 of the present utility model, and fig. 22 is a schematic structural diagram of the cooperation between the closure member and the valve stem in embodiment 2 of the present utility model; the end of the closure 10, which is close to the valve rod 30, is provided with a plurality of abutting parts 110, the number of the abutting parts 110 can be one or a plurality, the segment valve 100 also comprises a valve rod 30, the valve rod 30 penetrates through the closure 10, and a bulge 31 is arranged on the circumferential bulge of the valve rod 30; during the movement of the valve rod 30, the end of the protruding portion 31 abuts against the abutting portion 110, so that the closure 10 rotates along with the valve rod 30. The valve rod 30 is used for controlling the rotation of the closure member 10 in the valve body 20, so that the communication relation between the flow hole on the closure member 10 and the air supply channel on the valve body 20 is changed, and reasonable air flow can be realized under different sections, so that more efficient air utilization and control are realized. Based on the design, the convex part 31 protruding in the circumferential direction of the valve rod 30 is combined with the plurality of abutting parts 110 of the closure member 10, so that the position of the closure member 10 can be more stable, and unsmooth movement caused by friction force and other factors is avoided, thereby influencing the flow and control effect of gas. In addition, the valve rod 30 controls the shutter 10 to rotate, which is also beneficial to realizing rapid adjustment of the gas flow. The design can be widely applied to gas control occasions requiring high accuracy and high stability.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (12)

1. A segment valve, characterized in that it is applied to a kitchen range; the segment valve comprises a valve body and a closure member, wherein the closure member is rotatably arranged in the valve body and is provided with a first limit position and a second limit position;

the valve body comprises an inner ring air supply channel, an outer ring air supply channel and a middle ring air supply channel; the closure comprises an inner circulation flow hole, an outer circulation flow hole and a middle ring flow hole which are arranged along the axial direction of the closure;

when the cooker is in a big fire gear, the inner ring flow hole and the outer ring flow hole are respectively communicated with the inner ring air supply channel and the outer ring air supply channel, and the middle ring flow hole is communicated with or misplaced with the outer ring air supply channel;

the middle ring flow hole is also used for communicating with the middle ring air supply channel in the process that the closure is rotated from the first limit position to the second limit position.

2. The segment valve of claim 1, wherein the outer ring flow bore extends a predetermined distance along the axial direction of the closure, the predetermined distance being adapted to the caliber of the outer ring gas supply passage, the middle ring flow bore overlapping a projected portion of the outer ring flow bore in the axial direction of the closure;

when the kitchen range is in a big fire gear, the middle ring flow hole is staggered with the outer ring air supply channel.

3. The segment valve of claim 2, wherein a clearance distance exists between the middle ring flow orifice and the outer ring gas supply passage during rotation from the first limit position to the second limit position;

and when the middle ring flow hole rotates to be closest to the outer ring air supply channel, a sealing distance is arranged between the middle ring flow hole and the outer ring air supply channel so that the middle ring flow hole and the outer ring air supply channel are blocked relatively.

4. The segment valve of claim 2, wherein openings at both ends of the middle circulation flow hole are respectively formed in an inner side wall and an outer side wall of the closure member to penetrate the closure member, and an opening at one end of the middle circulation flow hole located in the inner side wall of the closure member is lower than an opening at one end of the middle circulation flow hole located in the outer side wall of the closure member.

5. The segment valve of claim 2, wherein said inner annular flow orifice and said outer annular flow orifice are each provided in plurality, and said middle annular flow orifice is provided in one;

the inner ring flow holes are arranged at intervals along the circumferential direction of the closure member, the outer ring flow holes are arranged at intervals along the circumferential direction of the closure member, and the middle ring flow holes, the inner ring flow holes and the outer ring flow holes are all provided with interval distances;

the central angles corresponding to the inner circulation flow holes are larger than the central angles corresponding to the outer circulation flow holes, and the central angles corresponding to the inner circulation flow holes are partially overlapped with the central angles corresponding to the outer circulation flow holes;

the middle ring flow hole is arranged outside the central angle corresponding to the outer ring flow hole.

6. The segment valve of claim 1, wherein the middle ring flow holes occupy a middle ring area in the circumferential direction of the closure and the outer ring flow holes occupy an outer ring area in the circumferential direction of the closure; along the axis direction of the closure, the projection of the middle ring region is located in the outer ring region;

the common extension length of the middle circulation flow hole and the outer ring flow hole in the axial direction of the closure is matched with the caliber of the outer ring air supply channel; when the kitchen range is in a big fire gear, the middle ring flow hole is communicated with the outer ring air supply channel.

7. The segment valve of claim 6, wherein the number of outer ring flow holes is a plurality and the number of middle ring flow holes is at least one; the central angles corresponding to the middle ring flow holes are smaller than the central angles corresponding to the outer ring flow holes;

and the central angles corresponding to the middle ring flow holes are positioned at the middle parts of the central angles corresponding to the outer ring flow holes.

8. The segment valve of claim 7, wherein said middle ring flow orifice is spaced from said outer ring flow orifice along the axial direction of said closure member;

or the middle ring flow hole and the outer ring flow hole are communicated along the axial direction of the closure to form a maximum hole.

9. The segment valve of claim 8, wherein the spacing between the middle ring flow orifice and its nearest outer ring flow orifice is less than the diameter of the outer ring gas supply passage port;

or, the projection of the maximum hole in the axial direction of the closure member is partially located in the projection range of the outer ring air supply channel in the axial direction of the closure member, and the projection of the maximum hole in the axial direction of the closure member is partially located in the projection range of the middle ring air supply channel in the axial direction of the closure member.

10. The segment valve of claim 1, wherein the closure is an outer closure, an outer sidewall of the outer closure being disposed within a receiving cavity of the valve body, the inner circulation flow orifice, the outer circulation flow orifice, and the middle ring flow orifice all extending through the outer sidewall of the outer closure;

or, the closure comprises an inner closure and an outer closure, the inner closure is arranged in the cavity of the outer closure, the outer side wall of the inner closure is attached to the inner side wall of the outer closure, and the length of the inner closure is not greater than that of the outer closure.

11. The closure of claim 10, wherein when said closure comprises said inner closure and said outer closure, said inner closure comprises a plurality of inner flow apertures and said outer closure comprises a plurality of outer flow apertures, said plurality of inner flow apertures and said plurality of outer flow apertures being in one-to-one correspondence and communication and forming said inner circulation flow aperture, said outer circulation flow aperture and said middle circulation flow aperture;

the inner flow holes penetrate through the side wall of the inner closure, the outer flow holes penetrate through the side wall of the outer closure, and along the axial direction of the closure, part of the inner flow holes on the inner closure are close to the edges of the corresponding outer flow holes on the outer closure;

Or, the side wall of the inner closure is provided with a plurality of grooves, the grooves of the inner closure are arranged along the circumferential direction, the inner flow holes are arranged on the bottom wall or the side wall of the groove, and the outer flow holes are communicated with the grooves.

12. The segment valve of claim 11, wherein the middle ring air supply channel is spaced from the projection of the outer ring air supply channel in the axial direction of the receiving cavity;

or, the middle ring air supply channel is overlapped with the projection part of the outer ring air supply channel in the axial direction of the accommodating cavity.