CN211315184U

CN211315184U - Knob structure of plug valve and plug valve

Info

Publication number: CN211315184U
Application number: CN201922320767.3U
Authority: CN
Inventors: 徐宏远; 刘雁云
Original assignee: Zhejiang Bodun Gas Appliance Technology Co ltd
Current assignee: Zhejiang Bodun Gas Appliance Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-21
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a knob structure of plug valve relates to gas-cooker accessory technical field. Turning a knob structure of a plug valve, comprising: the valve body is provided with an air inlet channel, a main fire channel and a secondary fire channel; the valve core is arranged in the valve body, and a main fire air outlet hole and a secondary fire air outlet hole are formed in the side wall of the valve core; the valve core can rotate relative to the valve body, the valve cavity is arranged on the valve core in a penetrating mode, and a first groove is formed in the upper end of the valve core; and a convex rod is arranged at one end of the knob rod, which faces the valve body, the convex rod is arranged along the direction vertical to the knob rod, and the convex rod is inserted in a first groove at the upper end of the valve core. The knob rod drives the valve core to rotate, so that the on-off of the main fire air outlet hole and the main fire channel and the on-off of the secondary fire air outlet hole and the secondary fire channel are controlled. The convex rod is inserted into the first groove at the upper end of the valve core, so that the connection between the knob rod and the valve core is realized, the whole structure is simple, the installation is convenient, and the rotation angle is large.

Description

Knob structure of plug valve and plug valve

Technical Field

The utility model belongs to the technical field of the gas-cooker accessory, a knob structure and plug valve of plug valve is related to.

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.

Domestic gas cooking utensils generally have interior ring fire and outer ring fire, ordinary binary channels gas valve generally has inlet channel including inside, main fire outlet channel and time fire outlet channel's valve body, be equipped with the case that can rotate in the valve body, case upper portion has the spring chamber, the case lower part is equipped with the chamber of ventilating, wear to be equipped with on the valve body and to drive the rotatory valve rod of case, the lower extreme top of valve rod is held to make the valve rod keep shifting up and break away from the spring of being connected the trend with the case, this spring is located the spring intracavity on the case, it has the main fire venthole that is used for communicateing inlet channel and main fire outlet channel to open on the chamber lateral wall of ventilating of case, and be used for communicateing inlet channel and the time fire venthole of giving.

The fire regulation of the main fire and the secondary fire is realized by the rotation of the valve core, and the rotation of the valve core is driven by a knob structure. In the prior art, the knob structure usually has a large number of parts, a complex structure, inconvenient installation and a small rotation angle, and usually only can select between 165 and 170 degrees, so that the fire behavior variation amplitude is large in the adjustment process, and the adjustment by a user is not needed.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a knob structure of a plug valve with simple structure, convenient installation and large rotation angle.

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

the valve body is provided with an air inlet channel, a main fire channel and a secondary fire channel;

the valve core is arranged in the valve body, and a main fire air outlet hole and a secondary fire air outlet hole are formed in the side wall of the valve core; the valve core can rotate relative to the valve body, the valve cavity is arranged on the valve core in a penetrating mode, and a first groove is formed in the upper end of the valve core;

and a convex rod is arranged at one end of the knob rod, which faces the valve body, the convex rod is arranged along the direction vertical to the knob rod, and the convex rod is inserted in a first groove at the upper end of the valve core.

As a further improvement of the utility model, the knob rod can drive the valve core to rotate to control the on-off of the main fire air outlet hole and the main fire channel and the on-off of the secondary fire air outlet hole and the secondary fire channel.

As a further improvement of the utility model, the valve body fixing device further comprises a fixing frame which is fixedly arranged on the valve body, and the knob rod passes through the fixing frame and is inserted into the first groove.

As a further improvement of the utility model, a clamping spring, a positioning plate and a spring are sleeved on a knob rod between the fixing frame and the valve body in sequence from one side of the fixing frame to one side of the valve body; the clamp spring is clamped on the knob rod; a positioning groove is formed in the positioning plate, a positioning boss is arranged on the fixing frame, and the positioning boss is inserted in the positioning groove; the spring is abutted between the positioning plate and the valve body.

As a further improvement of the utility model, be provided with the clamp plate between jump ring and the locating plate, the valve body side is provided with micro-gap switch, clamp plate butt micro-gap switch.

As a further improvement, the valve body comprises a top cover, the side of the top cover is fixedly provided with a micro switch, and the fixing frame and the top cover are fixedly connected on the valve body through screws.

As a further improvement, the number of the screws is two, and the two sides of the valve body are respectively arranged.

As a further improvement, the number of the positioning bosses and the number of the positioning grooves are respectively 1.

As a further improvement of the utility model, a first side parallel to the axis of the knob rod is formed on the knob rod, a through hole matched with the first side is arranged on the positioning plate, and the knob rod can drive the positioning plate to rotate.

The utility model discloses still protect a plug valve, contain the knob structure of above-mentioned plug valve.

Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least: the utility model discloses a knob pole drives the case and rotates, controls the break-make of main fire venthole and main fire passageway, the break-make of secondary fire venthole and secondary fire passageway. The convex rod is inserted into the first groove at the upper end of the valve core, so that the connection between the knob rod and the valve core is realized, the whole structure is simple, the installation is convenient, and the rotation angle is large.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is an exploded schematic view of the knob structure of the plug valve of the present invention.

Fig. 2 is a schematic view of the structure of fig. 1 from another view angle.

Fig. 3 is a schematic view showing a structure of a cock valve to which the knob structure of fig. 1 is applied.

Fig. 4 is a schematic view of the structure of fig. 3 from another view angle.

Fig. 5 is a sectional view of the structure of fig. 3.

Fig. 6 is a structural sectional view of fig. 3 from another perspective.

Fig. 7 is a structural sectional view of fig. 3 from another perspective.

Fig. 8 is a schematic view of the structure of fig. 3 from another view angle.

In the figure, 100, valve body; 110. an air intake passage; 120. a main fire channel; 130. a secondary fire channel; 200. a valve core; 212. a main fire air outlet hole; 213. secondary fire air outlet holes; 215. a first groove; 221. A first boss; 222. a spring cavity; 223. a vent lumen; 231. a valve needle; 232. a valve housing; 233. an electromagnetic valve; 234. a first gas port; 235. a second gas port; 300. a knob stem; 310. a second groove; 330. a microswitch; 340. a nose bar; 350. a first side surface; 410. a fixed mount; 411. positioning the boss; 420. a clamp spring; 430. pressing a plate; 440. positioning a plate; 441. positioning a groove; 450. a spring; 500. a bottom cover; 510. a lever; 511. a shifting sheet; 512. an arm portion; 600. and a top cover.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 8.

A knob structure of a plug valve, as shown in fig. 1 to 5, comprising: the valve comprises a valve body 100, a valve core 200, a knob rod 300 and a fixing frame 410, wherein a clamp spring 420, a pressure plate 430, a positioning plate 440 and a spring 450 are sleeved on the knob rod 300 from one side of the fixing frame 410 to one side of the valve body 100 in sequence.

The valve body 100 is provided with an intake passage 110, a main fire passage 120, and a sub fire passage 130.

The valve core 200 is arranged in the valve body 100, and the side wall of the valve core 200 is provided with a main fire vent hole 212 and a secondary fire vent hole 213; the valve core 200 can rotate relative to the valve body 100, a valve cavity is arranged on the valve core 200 in a penetrating way, and a first groove 215 is arranged at the upper end of the valve core 200.

The knob rod 300 is provided with a protruding rod 340 at one end facing the valve body 100, the protruding rod 340 is arranged along a direction perpendicular to the knob rod 300, and the protruding rod 340 is inserted into the first groove 215 at the upper end of the valve core 200.

The knob rod 300 can drive the valve core 200 to rotate, and control the on-off of the main fire air outlet hole 212 and the main fire channel 120 and the on-off of the secondary fire air outlet hole 213 and the secondary fire channel 130.

The knob structure further comprises a fixing frame 410, the fixing frame 410 is fixedly installed on the valve body 100, and the knob rod 300 passes through the fixing frame 410 and is inserted into the first groove 215.

The clamping spring 420, the positioning plate 440 and the spring 450 are sleeved on the knob stem 300 between the fixing frame 410 and the valve body 100 in sequence from one side of the fixing frame 410 to one side of the valve body 100; the clamp spring 420 is clamped on the knob stem 300; a positioning groove is formed in the positioning plate 440, a positioning boss 411 is arranged on the fixing frame 410, and the positioning boss 411 is inserted into the positioning groove; spring 450 abuts between positioning plate 440 and valve body 100.

After the above-mentioned structure is established in proper order, the installation mount 410 can, whole part is small in quantity, simple structure, installation are convenient, can not like the too much structure of prior art, too much spring, lead to the installation complicated.

Further, a pressing plate 430 is arranged between the clamp spring 420 and the positioning plate 440, a microswitch 330 is arranged on the side edge of the valve body 100, the pressing plate 430 abuts against the microswitch 330, and when the microswitch 330 is pressed by the pressing plate 430, the plug valve starts to ignite.

Further, the valve body 100 comprises a top cover 600, the micro switch 330 is fixedly arranged on the side of the top cover 600, and the fixing frame 410 and the top cover 600 are fixedly connected to the valve body 100 through screws. The screw fixing mode has simple structure and convenient installation. Specifically, a pair of screws respectively disposed at two sides of the valve body 100 can be fixedly installed.

Furthermore, a first side 350 parallel to the axis of the knob shaft 300 is formed on the knob shaft 300, a through hole matching with the first side 350 is formed on the positioning plate 440, and the knob shaft 300 can drive the positioning plate 440 to rotate.

During ignition, the knob rod 300 is pressed towards the valve body 100, the convex rod 340 abuts against the bottom of the first groove 215, the positioning boss 411 is separated from the positioning groove, then the knob rod 300 is rotated to drive the valve core 200 to rotate until the main fire air outlet hole 212 is communicated with the main fire channel 120 and the secondary fire air outlet hole 213 is communicated with the secondary fire channel 130, and ignition is achieved.

When the fire is adjusted, the valve core 200 is driven to rotate by rotating the knob rod 300, the size of the overlapped area of the main fire air outlet hole 212 and the main fire channel 120 and the size of the overlapped area of the secondary fire air outlet hole 213 and the secondary fire channel 130 are adjusted, and the adjustment of the fire is further realized.

Further, the number of the positioning bosses 411 and the number of the positioning grooves are respectively 1. In the prior art, the number of the positioning bosses 411 and the positioning grooves is set to 2 in number. The problem is that the rotation angle of the knob shaft 300 is limited, and can only be selected between 165 and 170 degrees, while the rotation angle can reach 230 and 350 degrees by adopting the technical scheme of the embodiment. For the user, the adjusting range of the fire is larger, the change of the fire is more stable, and the use is more convenient and safer.

Further, the valve device further comprises a valve needle 231, wherein a second groove 310 is formed at one end of the knob rod 300 facing the valve body 100, and the valve needle 231 is inserted into the second groove 310 and penetrates through the valve cavity.

Further, the inner wall of the valve chamber extends circumferentially inward to form a first boss 221, which divides the valve chamber into a spring chamber 222 located at the upper part and a vent chamber 223 located at the lower part. A spring is sleeved between the valve needle 231 and the first boss 221 in the spring cavity 222, and the knob rod 300 is inserted through the valve body 100 and connected with the valve needle. The first boss 221 is provided with a valve sleeve 232 and a sealing ring on the side facing the spring chamber 222, so as to further improve the sealing effect and fix the spring. Vent chamber 223 extends all the way to the bottom of valve body 100 forming a second gas port 235, and valve needle 231 may extend through second gas port 235 to the outside of valve body 100 when valve needle 231 is pressed downward.

The utility model also provides a plug valve, including above-mentioned knob structure.

As shown in fig. 3 to 7, the plug valve further includes a solenoid valve 233, and the solenoid valve 233 is inserted into the valve body 100. Specifically, the intake passage 110 is not a straight passage and has a corner, the solenoid valve 233 is inserted into the corner of the intake passage 110, and the solenoid valve 233 is movable relative to the valve body 100 to control the on/off state of the intake passage 110. The solenoid valve 233 functions as a misfire protector. The electromagnetic valve 233 can move between a first ignition position and a second flameout position, so that in an initial state, the electromagnetic valve 233 is located at the second flameout position, the air inlet passage 110 is disconnected, gas cannot enter from the bottom of the valve body 100 through the air inlet passage 110, and the plug valve cannot ignite, thereby playing a role in flameout protection; when the electromagnetic valve 233 is at the first position, the electromagnetic valve 233 is pushed open, the air inlet passage 110 is communicated, the gas can be fed from the bottom of the valve body 100 through the air inlet passage 110, and the plug valve can be normally ignited.

A first air port 234 opened toward the bottom is provided in the valve body 100 at a corner position where the solenoid valve 233 communicates with the intake passage 110.

As shown in fig. 8, the valve body 100 further includes a bottom cover 500 sealing the valve body 100 from the bottom of the valve body 100, the bottom cover 500 is fixed to the valve body 100 by screws, a rotatable lever 510 is disposed in the bottom cover 500, and a paddle 511 capable of abutting against the needle 231 and an arm 512 capable of pushing the solenoid valve 233 to move between the first position and the second position are disposed on the lever 510. The arm 512 is inserted into the first air port 234 and abuts against the solenoid valve 233. When the plug valve is opened, an operator needs to press the knob rod 300 downwards to drive the valve needle 231 to move downwards, the valve needle 231 penetrates through the second air port 235 to be abutted to the shifting piece 511, and the shifting piece 511 is pressed downwards to enable the shifting piece 511 to drive the lever 510 to rotate, further drive the arm 512 to move, push the electromagnetic valve 233, enable the electromagnetic valve 233 to reach the first position, and enable the plug valve to be ignited successfully.

The working principle of the plug valve is as follows:

1. and (3) ignition: the knob rod 300 is pressed downwards and rotated, the knob rod 300 drives the valve needle 231 to move downwards, the valve needle 231 props against the shifting piece 511 and presses the shifting piece 511 downwards, the shifting piece 511 drives the lever 510 to rotate, the arm part 512 is driven to move, the electromagnetic valve 233 is pushed, and the electromagnetic valve 233 reaches a first position; the valve core 200 is driven by the knob rod 300 to rotate, the air inlet channel 110 is communicated with the bottom of the valve core 200, the main fire air outlet hole 212 is communicated with the main fire channel 120, and the secondary fire air outlet hole 213 is communicated with the secondary fire channel 130, so that the gas is conveyed; the pressure plate 430 synchronously presses the microswitch 330 to cause the cock valve to fire.

2. Adjusting the fire: the knob lever 300 rotates the valve core 200, and when the overlapping area of the main fire outlet hole 212 and the main fire channel 120 and the overlapping area of the secondary fire outlet hole 213 and the secondary fire channel 130 reach the maximum, the fire behavior is the maximum. When the valve core 200 is rotated to the overlapping area of the main fire outlet hole 212 and the main fire channel 120 and the overlapping area of the secondary fire outlet hole 213 and the secondary fire channel 130 are both reduced, the fire behavior is correspondingly reduced.

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 knob structure of a plug valve, comprising:

2. The knob structure of a plug valve according to claim 1, wherein the knob rod can drive the valve core to rotate to control the on-off of the main fire air outlet hole and the main fire channel and the on-off of the secondary fire air outlet hole and the secondary fire channel.

3. The knob structure of the plug valve according to claim 2, further comprising a fixing frame fixedly mounted on the valve body, wherein the knob rod is inserted into the first groove through the fixing frame.

4. The knob structure of the plug valve according to claim 3, wherein the snap spring, the positioning plate and the spring are sleeved on the knob rod between the fixing frame and the valve body in sequence from one side of the fixing frame to one side of the valve body; the clamp spring is clamped on the knob rod; a positioning groove is formed in the positioning plate, a positioning boss is arranged on the fixing frame, and the positioning boss is inserted in the positioning groove; the spring is abutted between the positioning plate and the valve body.

5. The knob structure of the plug valve according to claim 4, wherein a pressing plate is arranged between the clamp spring and the positioning plate, a microswitch is arranged on the side of the valve body, and the pressing plate abuts against the microswitch.

6. The knob structure of a plug valve according to claim 3, wherein the valve body comprises a top cover, a microswitch is fixedly arranged on the side edge of the top cover, and the fixing frame and the top cover are fixedly connected on the valve body through screws.

7. The knob structure of a plug valve according to claim 6, wherein the number of the screws is two, and the screws are respectively arranged on two sides of the valve body.

8. The knob structure of a plug valve according to claim 4, wherein the number of the positioning bosses and the number of the positioning grooves are 1 respectively.

9. The knob structure of a stop cock according to claim 4, wherein the knob rod has a first side surface formed thereon parallel to the axis of the knob rod, and the positioning plate has a through hole formed therein matching with the first side surface, and the knob rod drives the positioning plate to rotate.

10. A plug valve comprising a knob structure of the plug valve according to any one of claims 1 to 9.