CN217927292U

CN217927292U - Plug valve and gas stove

Info

Publication number: CN217927292U
Application number: CN202221639489.3U
Authority: CN
Inventors: 徐宏远; 刘雁云; 陈六明; 蒋磊; 张仕君
Original assignee: Zhejiang Bodun Gas Appliance Technology Co ltd
Current assignee: Zhejiang Bodun Gas Appliance Technology Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-29
Anticipated expiration: 2032-06-28

Abstract

The utility model provides a plug valve and gas-cooker relates to cooking utensils spare part technical field. A plug valve, comprising: the valve body is provided with an air inlet channel; the valve core is arranged in the valve body, the bottom of the valve core is provided with an air inlet and a first slot, and the air inlet is communicated with the air inlet channel; the rotating plate is provided with a convex block which is inserted into the first slot, and the rotating plate is provided with a vent hole; the gear plate is arranged on one side of the rotating plate, which is far away from the valve core, and abuts against the rotating plate, and an air inlet hole is formed in the gear plate; wherein, the valve core is rotated, the valve core drives the rotating plate to rotate, the overlapping area of the vent hole and the air inlet hole is gradually changed, and the air input of the valve core is gradually changed. The utility model discloses because of the air current passes through the gear board earlier and gets into the case again, the rethread case transmits away, can guarantee simultaneously that big fire small fire passway gives vent to anger simultaneously and goes out the fire to the air input through control gear board comes the accurate control flame size.

Description

Plug valve and gas stove

Technical Field

The utility model belongs to the technical field of cooking utensils spare part, concretely relates to plug valve and gas-cooker.

Background

The plug valve of gas stove is the core part of household gas stove, and the existing mechanical gas stove is ignited, fire power is regulated and flameout is carried out through the plug valve. The household gas cooker generally has an inner ring fire and an outer ring fire, and the fire intensity of a main fire and a secondary fire is adjusted by rotating a valve core.

Chinese patent publication No. CN110953364A discloses a plug valve, which comprises: the valve body is provided with an air inlet channel, a main fire channel and a secondary fire channel; the case, it is installed in the valve body, and the case is valve body rotatory relatively, runs through on the case and sets up the valve chamber, is provided with the blow vent of blocking with the valve chamber on the case periphery wall, the blow vent includes: the fire-fighting gas inlet comprises a gas inlet communicated with a gas inlet channel, a main fire gas outlet hole communicated with a main fire channel and a secondary fire gas outlet hole communicated with a secondary fire channel; the peripheral wall of the valve core is also provided with an air guide groove blocked with the valve cavity; the air inlet, the main fire air outlet hole and the secondary fire air outlet hole are respectively communicated with the air guide groove.

The plug valve adjusts the air input through the overlapping area of the air outlet hole of the rotary valve core adjusting valve core and the corresponding channel so as to control the flame size, and the air inlet hole area of the valve core is large, so that the air input of the rotary valve core is slightly changed, and the flame size is difficult to accurately control.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a plug valve that can accurate control flame size.

The purpose of the utility model can be realized by the following technical proposal: a plug valve, comprising:

the air inlet valve comprises a valve body, wherein an air inlet channel is formed in the valve body;

the valve core is arranged in the valve body, the bottom of the valve core is provided with an air inlet and a first slot, and the air inlet is communicated with the air inlet channel;

the rotating plate is provided with a convex block, the convex block is inserted into the first slot, and the rotating plate is provided with a vent hole;

the gear plate is arranged on one side, away from the valve core, of the rotating plate and abuts against the rotating plate, and an air inlet hole is formed in the gear plate;

the valve core is rotated, the valve core drives the rotating plate to rotate, the overlapping area of the vent hole and the air inlet hole is gradually changed, and the air inflow of the valve core is gradually changed.

As a further improvement of the utility model, the radial dimension of the vent hole is along the circumferential variation of the gear plate.

As a further improvement of the utility model, the vent hole is arranged as a circular arc fan-shaped hole.

As a further improvement, the utility model also comprises a valve needle, the valve needle set up in the case, the rotor plate with the gear plate cover is located on the valve needle.

As a further improvement, the utility model also includes first sealing washer and second sealing washer, first sealing washer cover is located on the needle, the rotor plate with the gear board cover is located on the first sealing washer, the second sealing washer set up in the outside of rotor plate and with the gear board offsets.

As a further improvement, the utility model discloses a knob pole is still included, the knob pole is inserted and is located in the valve body, be provided with the bolt on the knob pole, be provided with the second slot on the case, the bolt is inserted and is located in the second slot, knob pole bottom is provided with the recess, the one end of needle set up in the recess.

As a further improvement, the utility model discloses a be provided with the mount that can dismantle the connection on the valve body, the knob pole passes the mount is inserted and is located in the valve body, one side of valve body is provided with micro-gap switch, the cover is equipped with the clamp plate on the knob pole, pushes down the knob pole, the clamp plate triggers micro-gap switch.

As a further improvement, the valve body is further provided with a main fire channel and a secondary fire channel, the main fire channel and the secondary fire channel are arranged in the two sides of the air inlet channel, and the air inlet channel is provided with a solenoid valve.

As a further improvement, the utility model also comprises a bottom cover and a lever, the bottom cover with the bottom of valve body is connected, the lever set up in the bottom, be provided with the plectrum on the lever, the needle pushes down the promotion the plectrum, thereby the lever rotates the promotion the solenoid valve is opened.

The utility model also provides a gas stove, including above-mentioned arbitrary plug valve.

Based on the technical scheme, the utility model discloses can produce following technological effect at least:

1. the air inflow of the valve core is adjusted by arranging the gear plate and the rotating plate, and because the air flow firstly passes through the gear plate and then enters the valve core, and then is transmitted out through the valve core, the air inlet hole on the gear plate is far smaller than the air outlet hole on the valve core, so that the flame size is mainly determined by the air inflow of the gear plate, the flame size can be accurately controlled by controlling the air inflow of the gear plate through the rotating plate, and meanwhile, the synchronous air outlet and fire outlet of the large-fire channel hole and the small-fire channel hole are ensured;

2. the valve core is provided with the first groove, the rotating plate is provided with the lug, the lug is inserted into the first groove, and the valve core is in concave-convex fit with the rotating plate, so that the rotating plate can be directly driven to rotate when the valve core rotates, the use of parts is reduced, and the cost is reduced;

3. by setting the radial size of the vent hole on the rotating plate to change along the circumferential direction of the rotating plate, the change of the air inflow is nonlinear when the rotating plate rotates, and more accurate control can be realized at the position where the air inflow is changed slightly;

4. the first sealing ring is arranged and used for sealing mounting holes in a rotating plate and a gear plate which are sleeved on the valve needle; the second sealing ring is arranged and used for sealing the joint of the rotating plate and the gear plate after the rotating plate and the gear plate are jointed;

5. the plug pin is arranged on the knob rod, and the second groove is formed in the valve core, so that the valve core can be driven to rotate when the knob rod rotates.

Drawings

Fig. 1 is a schematic structural diagram of the plug valve of the present invention.

Fig. 2 is a front view of the plug valve of the present invention.

Fig. 3 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 2.

Fig. 4 is an exploded view of the plug valve of the present invention.

Fig. 5 is a schematic structural view of a rotation plate in the plug valve of the present invention.

Fig. 6 is a schematic structural view of a gear plate in the plug valve of the present invention.

In the figure, 100, valve body; 110. an air intake passage; 111. an electromagnetic valve; 120. a main fire channel; 130. a secondary fire channel; 140. a fixed mount; 141. pressing a plate; 150. a microswitch; 200. a valve core; 210. an air inlet; 220. a first slot; 230. a second slot; 300. a gear plate; 310. an air inlet; 400. a rotating plate; 410. a vent hole; 420. a bump; 510. a first seal ring; 520. a second seal ring; 600. a knob stem; 610. a bolt; 620. a groove; 700. a valve needle; 800. a bottom cover; 900. a lever; 910. a shifting sheet.

Detailed Description

It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The following is a detailed embodiment of the present invention, and the technical solution of the present invention is further described with reference to the accompanying fig. 1-6, but the present invention is not limited to the following embodiment.

A plug valve comprising: a valve body 100, a valve spool 200, a rotation plate 400, and a gear plate 300. The valve body 100 is provided with an air inlet passage 110; the valve core 200 is arranged in the valve body 100, the bottom of the valve core 200 is provided with an air inlet 210 and a first slot 220, the air inlet 210 is communicated with the air inlet channel 110, and the air inlet channel 110 is arranged on one side of the valve body 100 close to the valve core 200; the rotating plate 400 is provided with a projection 420, the projection 420 is inserted into the first slot 220, and the rotating plate 400 is provided with a vent 410; the gear plate 300 is arranged on one side of the rotating plate 400 far away from the valve core 200 and is abutted against the rotating plate 400, and an air inlet 310 is arranged on the gear plate 300; wherein, the valve core 200 is rotated, the valve core 200 drives the rotating plate 400 to rotate, the overlapping area of the vent hole 410 and the air inlet hole 310 is gradually changed, and the air input of the valve core 200 is gradually changed. The air inflow of the valve core 200 is adjusted by arranging the gear plate 300 and the rotating plate 400, and because the air flow firstly passes through the gear plate 300 and then enters the valve core 200 and then is transmitted out through the valve core 200, the air inlet holes 310 on the gear plate 300 are far smaller than the air outlet holes on the valve core 200, so that the flame size is mainly determined by the air inflow of the gear plate 300, the air inflow of the gear plate 300 can be controlled through the rotating plate 400 to accurately control the flame size, and meanwhile, the main fire channel 120 and the secondary fire channel 130 are simultaneously ensured to synchronously give out air and fire. Meanwhile, the first groove 620 is formed in the valve core 200, the protrusion 420 is formed in the rotating plate 400, the protrusion 420 is inserted into the first groove 620, and the rotating plate 400 can be directly driven to rotate when the valve core 200 rotates, so that the use of parts is reduced, and the cost is reduced.

Specifically, the valve body 100 is further provided with a main fire passage 120 and a secondary fire passage 130, the main fire passage 120 and the secondary fire passage 130 are disposed at two sides of the intake passage 110, and the intake passage 110 is provided with an electromagnetic valve 111 for controlling the opening and closing of the intake passage 110. The valve core 200 is installed in the valve body 100, the valve core 200 can rotate relative to the valve body 100, a valve cavity is arranged in the valve core 200 in a penetrating mode, and a main fire air outlet communicated with the main fire channel 120 and a secondary fire air outlet communicated with the secondary fire channel 130 are arranged on the outer peripheral wall of the valve core 200. After the electromagnetic valve 111 is opened, the fuel gas reaches the bottom of the valve core 200 through the air inlet channel 110, sequentially enters the valve cavity through the air inlet 310 on the gear plate 300 and the vent hole 410 on the rotating plate 400, and then enters the main fire channel 120 and the secondary fire channel 130 from the main fire outlet and the secondary fire outlet respectively. The main fire passage 120 and the sub fire passage 130 are provided at both sides of the intake passage 110 in order to be adapted to the installation manner of the gas range.

Preferably, the radial size of the vent holes 410 varies along the circumference of the rotating plate 400. In the present embodiment, the vent holes 410 are provided as circular arc-shaped holes, and the radial dimension of the circular arc-shaped holes continuously changes in the circumferential direction of the rotating plate 400. The air inlet holes 310 are formed in a plurality of round holes which are circumferentially arranged along the gear plate 300, the sizes of the round holes are divided into three types, a round hole with a medium size is 1mm in diameter at the initial position, a plurality of small round holes with the diameter of 0.3mm are arranged in the middle of the gear plate, an oval hole is formed in the position of 300 degrees of the gear plate, and the area of the oval hole is about twice that of the first round hole. This is based on the consideration that in the initial position, the ignition of the plug valve needs to ensure a certain air inflow so that the size of the first hole is slightly larger to meet the ignition requirement, the middle part needs to be designed smaller to meet the purpose of accurately controlling the air inflow change, the fire power is maximum at 90 degrees, and therefore the maximum air inlet hole 310 is arranged. In the rotating process of the rotating plate 400, the overlapping area of the vent hole 410 and the air inlet hole 310 is gradually increased, the air intake amount of the valve core 200 is gradually increased, but the vent hole 410 is arranged to be an arc fan-shaped hole, the radial dimension of the vent hole is gradually increased along the rotating direction, the increasing speed of the overlapping area is gradually increased, the increasing speed of the air intake amount of the valve core 200 is gradually increased, accurate flame size control near the initial position can be realized, when the rotating plate 400 rotates to 90 degrees, the air intake amount reaches the maximum, the rotating plate 400 continues to rotate, the air intake amount is gradually reduced, and the radial dimension of the vent hole 410 on the rotating plate 400 is arranged to change along the circumferential direction of the rotating plate 400, so that when the rotating plate 400 rotates, the air intake amount changes nonlinearly, and the flame size near the initial position can be controlled more accurately.

The utility model discloses plug valve still includes needle 700, first sealing washer 510 and second sealing washer 520, and needle 700 sets up in case 200, and rotor plate 400 and gear board 300 cover are located on needle 700. The first sealing ring 510 is sleeved on the valve needle 700, the rotating plate 400 and the gear plate 300 are sleeved on the first sealing ring 510, and the second sealing ring 520 is disposed on the outer side of the rotating plate 400 and abuts against the gear plate 300. The first sealing ring 510 is arranged for sealing the mounting holes in the rotating plate 400 and the gear plate 300 sleeved on the valve needle 700; by providing the second sealing ring 520, the joint between the rotating plate 400 and the shift lever plate 300 is sealed.

The utility model discloses still include knob pole 600 and bottom 800, knob pole 600 is inserted and is located valve body 100, is provided with bolt 610 on the knob pole 600, sets up second slot 230 on the case 200, and bolt 610 is inserted and is located second slot 230, and knob pole 600 bottom is provided with recess 620. The bottom cover 800 seals the valve body 100 from the bottom of the valve body 100, a rotatable lever 900 is arranged in the bottom cover 800, and a shifting piece 910 is arranged on the lever 900. One end of valve needle 700 is inserted into groove 620 at the bottom of knob stem 600 and there is a gap between the other end of valve needle 700 and paddle 910. When opening the plug valve, an operator needs to press the knob rod 600 downwards to drive the valve needle 700 to move downwards, the valve needle 700 presses the poking piece 910 downwards to drive the poking piece 910 to rotate the lever 900, and after the lever 900 rotates, the electromagnetic valve 111 is opened to open the air inlet channel 110.

The valve body 100 is provided with a detachable fixing frame 140, and the knob stem 600 is inserted into the valve body 100 through the fixing frame 140. The knob rod 600 is sleeved with a spring, the fixing frame 140 is sleeved with a pressing plate 141 towards one side of the valve body 100, and the pressing plate 141 is abutted against the micro switch 150. The micro switch 150 is fixedly provided at one side of the valve body 100. When knob lever 600 is pressed downward, pressure plate 141 simultaneously presses microswitch 150, which causes the stopcock to fire.

The working principle of the plug valve is as follows:

and (3) ignition: the knob rod 600 is pressed downwards, the knob rod 600 drives the valve needle 700 to move downwards, the valve needle 700 pushes the shifting piece 910, the shifting piece 910 drives the lever 900 to rotate, and the lever 900 rotates to open the electromagnetic valve 111, so that the air inlet channel 110 is opened; when the knob rod 600 moves, the pressure plate 141 is driven to move, the pressure plate 141 presses the microswitch 150, and the plug valve is ignited.

Adjusting the fire: the knob lever 600 is rotated, the knob lever 600 drives the valve core 200 and the valve needle 700 to rotate, the valve needle 700 drives the rotating plate 400 to rotate through the convex block 420, the overlapping area of the vent hole 410 and the air inlet hole 310 is gradually changed, the air inflow of the valve core 200 is gradually changed, as the air flow firstly passes through the gear plate 300 and then enters the valve core 200 and then is transmitted out through the valve core 200, the air inlet hole 310 on the gear plate 300 is far smaller than the air outlet hole on the valve core 200, so that the flame size is mainly determined by the air inflow of the gear plate 300, the flame size can be accurately controlled by controlling the air inflow of the gear plate 300 through the rotating plate 400, and meanwhile, the passage holes for big fire and small fire can be simultaneously synchronously discharged and discharged.

The utility model also provides a gas-cooker includes above-mentioned plug valve. The utility model discloses a set up gear plate 300 and rotor plate 400 and adjust case 200 air input, set up rotor plate 400 air vent 410 size to change along circumference, case 200 and rotor plate 400 unsmooth cooperation, drive rotor plate 400 when case 200 rotates and rotate, the air input of control gear plate 300 comes the accurate control flame size.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A plug valve, comprising:

the valve body is provided with an air inlet channel;

2. A plug valve according to claim 1 wherein the radial dimension of said vent holes varies circumferentially of said rotatable plate.

3. A plug valve according to claim 2 wherein said vent holes are provided as circular arc scallops.

4. The plug valve of claim 1, further comprising a valve needle disposed in the valve core, wherein the rotating plate and the shift plate are sleeved on the valve needle.

5. The plug valve of claim 4, further comprising a first sealing ring and a second sealing ring, wherein the first sealing ring is sleeved on the valve needle, the rotating plate and the gear plate are sleeved on the first sealing ring, and the second sealing ring is arranged on the outer side of the rotating plate and abuts against the gear plate.

6. The plug valve according to claim 4, further comprising a knob rod inserted into the valve body, wherein a plug is disposed on the knob rod, a second slot is disposed on the valve core, the plug is inserted into the second slot, a groove is disposed at the bottom of the knob rod, and one end of the valve needle is disposed in the groove.

7. The plug valve according to claim 6, wherein a fixing frame is arranged on the valve body, the fixing frame can be detachably connected with the valve body, the knob rod penetrates through the fixing frame and is inserted into the valve body, a micro switch is arranged on one side of the valve body, a pressing plate is sleeved on the knob rod, the knob rod is pressed downwards, and the pressing plate triggers the micro switch.

8. The plug valve of claim 4, wherein the valve body is further provided with a main fire channel and a secondary fire channel, the main fire channel and the secondary fire channel are arranged on two sides of the air inlet channel, and the air inlet channel is provided with an electromagnetic valve.

9. The plug valve of claim 8, further comprising a bottom cap connected to a bottom of the valve body and a lever disposed in the bottom cap, wherein the lever has a pull tab, the needle pushes the pull tab downward, and the lever rotates to open the solenoid valve.

10. A gas burner comprising a plug valve according to any one of claims 1 to 9.