CN218294505U - Gas proportional valve - Google Patents

Abstract

The utility model discloses a gas proportional valve, which comprises an electromagnetic generating device and a valve seat, wherein the top of the valve seat is provided with a component mounting port, the inside of the valve seat is provided with a valve core cavity, and a gas circulation valve core seat and an elastic magnetic control valve core device which are separately assembled are arranged in the valve core cavity; the bottom of the gas flow valve core seat is hermetically connected with the lower part of the valve core cavity and is pressed and fixed by the electromagnetic generating device; the bottom of the gas flow valve core seat is provided with a gas flow hole for movably connecting the elastic magnetic control valve core device in a penetrating way; the electromagnetic generating device is used for controlling the elastic magnetic control valve core device to move up and down through the magnetic force to adjust the size of a gap of a gas flowing hole, so that the gas flowing proportion is adjusted; the parts of the elastic magnetic control valve core device of the product can be preassembled by adopting an automatic production line; and then, the elastic magnetic control valve core device and the gas flow valve core seat are preassembled to form an integrated valve core device assembly, and then the integrated valve core device assembly is installed in the valve core cavity to form automatic assembly, so that the production efficiency is improved, and the labor cost is reduced.

Description

Gas proportional valve

Technical Field

The utility model relates to a gas circulation proportional control valve especially relates to a gas proportional valve.

Background

Chinese patent publication No. CN216768361U discloses a gas solenoid valve, which comprises a gas circulation control casing a, one side of the gas circulation control casing a is connected with a gas inlet joint A1, a first chamber A2 and a second chamber A3 are arranged inside the gas circulation control casing a, a gas outlet flange joint A4 is arranged on the side wall of the other end, the gas inlet joint A1 is communicated with the first chamber A2 through an internal gas channel, the gas inlet joint A1, the first chamber A2, the second chamber A3 and the gas outlet flange joint A4 are sequentially communicated through the internal gas channel, an electromagnetic switch valve B is hermetically installed on the first chamber A2, the specific structure of the electromagnetic switch valve B is the prior art, the electromagnetic switch valve B is used for opening and closing the internal gas channel port at the bottom of the first chamber A2 to control the on/off of gas;

the second cavity A3 comprises an upper cavity A31 and a lower cavity A33, the upper cavity A31 vertically corresponds to the lower cavity A33, a neck ring wall A32 with a reduced diameter is arranged between the upper cavity A31 and the lower cavity A33, a gas passing hole A321 is formed in the middle of the neck ring wall A32, the upper cavity A31 is communicated with the first cavity A2 through an internal gas channel, and the lower cavity A33 is communicated with a gas outlet flange joint A4 through the internal gas channel;

the second chamber A3 is hermetically provided with a gas proportional control valve C, the gas proportional control valve C comprises a return spring C1, a movable core C2, a rubber sealing ring C3, a sealing diaphragm 1, a top bracket seat C4, a clamp spring C5, a magnet C6, a non-magnetic-conductive sealing valve cover C7 and a magnetic induction device C8, and the magnetic induction device C8 is in the prior art;

the movable core C2 is integrally formed by injection molding; the movable core C2 comprises a circular valve plug C21, a main rod body C22 and a central through rod C23, the diameter of the circular valve plug is larger than that of the gas through hole A321, the bottom end of the main rod body is connected with the circular valve plug, the upper end of the main rod body is connected with the central through rod C23, the top section of the main rod body C21 is provided with a surrounding groove C24 around the central through rod, the peripheral wall body of the circular valve plug C21 is inlaid with a rubber sealing ring C3, and the circular valve plug C21 and the rubber sealing ring C3 are arranged in the lower cavity A33 in the center and correspond to the central hole of the gas through hole A321; a return spring C1 is fixedly embedded in the middle of the inner bottom of the circular valve plug in an embedded mode, the bottom of the return spring C1 is supported on the bottom wall of the lower cavity A33, the return spring C1 always jacks up the movable core C2 in a normal state to enable the rubber sealing ring C3 to seal the fuel gas through hole A321, an inner convex positioning piece A331 extends from the bottom wall of the lower cavity A33, and the inner convex positioning piece A331 is inserted into the inner bottom of the return spring C1 to position and fix the return spring C1;

the whole sealing diaphragm 1 is circular, the sealing diaphragm 1 is integrally formed, is made of rubber or silica gel, has elasticity and good tensile and resetting properties, and a thickened clamping ring 11 is arranged along the edge of the sealing diaphragm 1; a positioning column 12 extends and protrudes from the right middle of the sealing diaphragm 1, and a moving core C2 penetrating hole 121 penetrates through the middle of the positioning column 12; a thickened top wall 13 extends from the top column root of the positioning column 12 along the annular edge, and a mounting platform 131 is arranged at the relative outer top of the thickened top wall 13; a circumferential flexible arched wall 14 is arranged between the thickened top wall 13 and the thickened clamping ring 11, the top of the flexible arched wall 14 is convex, the opposite reverse side is a groove, and a circular concave part 15 is formed in the middle of the top of the flexible arched wall 14 surrounding the thickened top wall 13;

the central through rod tightly penetrates through the moving core C2 through hole 121 upwards, the positioning column 12 is tightly inserted into the surrounding groove, the diameter of the thickened top wall 13 is slightly larger than that of the positioning column 12, and the circumferential section of the positioning column 12 is pressed against the lower bottom of the thickened top wall 13; a top support seat C4 is fixedly connected to the top of the central penetrating rod in a penetrating mode, the top support seat C4 is embedded into the concave portion 15 and presses down the mounting platform 131 of the thickened top wall 13, the diameter of the top support seat C4 is equal to that of the thickened top wall 13, and the clamp spring C5 is inserted into the central penetrating rod and presses down the top support seat C4 tightly, so that the sealing diaphragm 1 is clamped, sealed and fixed in the middle; a magnet C6 is fixed at the topmost part of the top bracket seat C4; the sealing membrane 1 isolates the fuel gas from the magnet C6, and the fuel gas cannot contact the magnet C6 and is too close to a magnetic field; the edge of the sealing diaphragm 1 is thickened, a clamping ring 11 is embedded in a groove at the top cavity opening edge of the second cavity A3, a non-magnetic-conductive sealing valve cover C7 is tightly pressed on the thickened clamping ring 11 and then screwed on the gas circulation control shell A through screws, a magnetic induction device C8 is fixedly connected to the outer top of the non-magnetic-conductive sealing valve cover C7, and the magnetic induction device C8 is also fixedly connected with the gas circulation control shell A;

the magnetic induction device C8 comprises an electromagnetic coil device C81 and a support C82, the support C82 is fixedly connected with the electromagnetic coil device C81, the electromagnetic coil device C81 is fixedly connected to the outer top of the non-magnetic-conductive sealing valve cover C7, and the support C81 is fixedly connected with the gas circulation control shell component A.

The gas electromagnetic valve also comprises a gas proportional control valve C, an upper cavity A31, a neck ring wall A32, a gas through hole A321 and a lower cavity A33 are arranged in the gas circulation control shell A, and then a return spring C1, a movable core C2, a rubber sealing ring C3, a top bracket seat C4, a clamp spring C5, a magnet C6, a bottom plate 1331, an inner convex positioning piece A331, a circular valve plug C21, a main rod body C22, a central through rod C23 and a surrounding groove C24 are jointly arranged on the upper cavity A31, the neck ring wall A32, the gas through hole A321 and the lower cavity A33 to form a gas flow rate regulating proportional valve core device.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a with the part of gas circulation case seat and elasticity magnetic control case device in advance through the automatic production equipment pre-assembly after again with the assembly valve core intracavity, provide production efficiency's gas proportional valve.

The scheme for solving the technical problems is as follows:

a gas proportional valve comprises an electromagnetic generating device and a valve seat, wherein the electromagnetic generating device is used for generating magnetic force by electrifying, the top of the valve seat is provided with a component mounting port, the inside of the valve seat is provided with a valve core cavity, the upper side wall of the valve seat is provided with a gas inlet hole, and the bottom of the valve seat is provided with a gas outlet hole; the electromagnetic generating device is fixedly connected with the top of the valve seat and seals the component mounting port, the electromagnetic generating device is arranged in the component mounting port in the middle, and a fuel gas circulation valve core seat and an elastic magnetic control valve core device which can be assembled in a separable mode are arranged in the valve core cavity;

the bottom circumference of the gas flowing valve core seat is fixedly and hermetically connected with the circumference of the lower part of the valve core cavity;

the electromagnetic generating device compresses and fixes the gas flow valve core seat;

the bottom of the gas flow valve core seat is provided with a gas flow hole; the gas flow-through hole is in penetrating type and movably connected with an elastic magnetic control valve core device in a penetrating way; the fuel gas can only flow through the fuel gas flowing hole and then flow to the fuel gas outlet hole after entering from the fuel gas inlet hole;

the electromagnetic generating device is used for controlling the elastic magnetic control valve core device to move up and down through the magnetic force of the electromagnetic generating device so as to adjust the size of a gap of a gas flowing hole;

the elastic magnetic control valve core device is used for elastically adjusting the size of a gap of a gas flow through hole so as to adjust the gas flow flux and form gas flow proportion adjustment.

The utility model discloses a gas proportional valve beneficial effect does: 1. the gas circulation valve core seat and the elastic magnetic control valve core device which are assembled in a separable mode are arranged in the valve core cavity of the gas circulation valve core device, and an automatic production line (automatic production equipment or a robot) is conveniently adopted for pre-assembly;

the convenient elastic magnetic control valve core device which is provided with a separable assembly is convenient for pre-assembling the accessories of the device by adopting an automatic production line (automatic production equipment or a robot);

the purpose of the gas flow valve core seat provided with the detachable assembly (detachable/detachable) is to conveniently adopt an automatic production line (automatic production equipment or a robot) to pre-assemble the elastic magnetic control valve core device and the gas flow valve core seat to form an integrated valve core device assembly, and then the integrated valve core device assembly is assembled into the valve core cavity to form automatic assembly, so that the production efficiency is improved, and the labor cost is reduced. 2. The sealing effect is good after the integral assembly, the gas circulation proportion is stably adjusted,

drawings

Fig. 1 and 2 are perspective views of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4, 5 and 6 are split views of the present invention;

fig. 7 is a perspective view of the valve seat of the present invention;

fig. 8 is a cross-sectional view of the valve seat of the present invention;

FIG. 9 is a disassembled view of the valve seat and the electromagnetic generating device, the gas flow valve core seat and the elastic magnetic control valve core device of the present invention;

fig. 10 is a perspective view of the valve seat of the present invention.

The electromagnetic generating device comprises an electromagnetic generating device 1, a mounting hole 11, a recessed cavity 12, a valve seat 2, a component mounting port 21, a valve core cavity 22, a gas inlet hole 23, a gas outlet hole 24, a valve seat screw hole 25 and a positioning column 26

The gas flow through valve core seat 3, the elastic magnetic control valve core device 4, the gas flow through hole 31, the surrounding sealing groove 32, the gas flow channel 3A, the gas flow through cavity 3A1, the gas flow surrounding groove 3A2, the gas inlet hole 3A3, the magnet separation flexible elastic sheet 4A, the central magnet 4B, the middle elastic valve plug device 4C, the magnet movement sealing cavity 4D, the upper positioning hole 4E, the positioning spring 4F, the lower positioning step 4G, the reset spring 4C1, the rubber plug 4C2, the spring upper positioning step 4C21, the undercut cavity 4C22, the moving core rod 4C3, the undercut hook 4C31 magnet locking core rod 4C4, the recessed hole 4C5, the core penetrating hole 4A1, and the thickened wall ring 4A2.

Detailed Description

A fuel gas proportional valve comprises an electromagnetic generating device 1 and a valve seat 2, wherein the electromagnetic generating device 1 is used for electrifying to generate magnetic force (generating a magnetic field), and the electromagnetic generating device 1 is an electromagnetic generator; the top of the valve seat 2 is provided with a component mounting port 21, the inside of the valve seat is provided with a valve core cavity 22, the upper side wall of the valve seat is provided with a gas inlet hole 23, and the bottom of the valve seat is provided with a gas outlet hole 24; the valve core cavity 22 is funnel-shaped; the bottom edge of the electromagnetic generating device 1 is screwed and fixedly connected with the top of the valve seat 2 through a screw assembly and seals the component mounting opening 21, the purpose of sealing the component mounting opening 21 is to prevent gas leakage, and the sealing material of the component mounting opening 21 is generally a rubber sealing ring, a silica gel sealing ring, a sealant or the like. The electromagnetic generating device 1 is centrally arranged in the component mounting opening 21 and is used for centrally aligning the elastic magnetic control valve core device 4. A valve seat screw hole 25 is formed in one diagonal of four corners at the top of the valve seat 2, two valve seat screw holes 25 are formed, the other diagonal extends upwards to protrude out of two positioning columns 26, and the number of the positioning columns 26 is two; mounting holes 11 are formed in four corner positions at the bottom of the electromagnetic generating device 1, after the electromagnetic generating device 1 is mounted on the top of the valve seat 2, two positioning columns 26 are inserted into the mounting holes 11 for positioning, and the other two mounting holes 11 and the two valve seat screw holes 25 vertically correspond to each other and are screwed and fixed on the top of the valve seat 2 through two screw assemblies. Therefore, the automatic production robot can install the electromagnetic generating device 1 on the top of the valve seat 2, position the electromagnetic generating device firstly and then screw the electromagnetic generating device, and automatic assembly production is facilitated.

The technical improvement of the product lies in that: the valve core cavity 22 is internally provided with a gas flow valve core seat 3 and an elastic magnetic control valve core device 4 which can be separately assembled (the valve core cavity 22 is internally provided with the gas flow valve core seat 3 and the elastic magnetic control valve core device 4); the gas flow valve core seat 3 can be just arranged in the valve core cavity 22 and is not loose; the gas flow valve core seat 3 is used for installing an elastic magnetic control valve core device 4;

the detachable (separated) gas flow valve core seat 3 is arranged, so that an automatic production line is conveniently adopted to preassemble the elastic magnetic control valve core device 4 and the gas flow valve core seat 3 to form an integrated valve core device assembly, and then the integrated valve core device assembly is arranged in the valve core cavity 22;

the detachable gas flow valve core seat 3 is arranged to conveniently adopt an automatic robot to install the integrated valve core device assembly into the valve core cavity 22;

the bottom circumference of the gas flow valve core seat 3 is fixed and hermetically connected with the lower circumference of the valve core cavity 22, the sealing mode is not limited, and a rubber sealing ring or a silica gel sealing ring or a sealant can be adopted;

the periphery of the gas flow valve core seat 3 is tightly pressed and fixed by the electromagnetic generating device 1, the bottom edge of the electromagnetic generating device 1 is screwed on the top of the valve seat 2 through a screw assembly, the gas flow valve core seat 3 can be tightly pressed and fixed, and the gas flow valve core seat 3 can be easily assembled and fixed by a robot;

the bottom of the gas flow valve core seat 3 is provided with a gas flow hole 31; the gas flow through hole 31 is in penetrating type and movably connected with an elastic magnetic control valve core device 4 in a penetrating manner, the elastic magnetic control valve core device 4 is also arranged in the middle of the gas flow through valve core seat 3, and the elastic magnetic control valve core device 4 is used for elastically adjusting the gap size of the gas flow through hole 31;

the bottom circumference of the gas flow valve core seat 3 is fixed and hermetically connected with the lower circumference of the valve core cavity 22, so that gas can only flow through the gas flow hole 31 and then flow to the gas outlet hole 24 after entering from the gas inlet hole 23; the gas leakage between the bottom periphery of the gas flow valve core seat 3 and the lower periphery of the valve core cavity 22 is prevented, and the gas proportion adjustment is prevented from being influenced;

the electromagnetic generating device 1 is used for controlling the elastic magnetic control valve core device 4 to move up and down through the magnetic force thereof so as to adjust the size of a gap of a gas flowing through the hole 31;

the elastic magnetic control valve core device 4 is used for elastically adjusting the size of the gap of the gas flowing hole 31, so as to adjust the gas flow flux, and thus form the gas flow proportion adjustment.

Under normal state, the electromagnetic generating device 1 is not powered on, the elastic magnetic control valve core device 4 magnetically attracts the electromagnetic generating device 1 through the self elastic force resetting property and the elastic magnetic control valve core device 4 to close the gas flowing hole 31; the working principle of the gas proportion regulation of the product is as follows: the principle of like-polarity repulsion and opposite-polarity attraction of a magnetic field is utilized. After the electromagnetic generating device 1 is electrified to generate a magnetic field, the elastic magnetic control valve core device 4 obtains a magnetic field (magnetic force) with the same polarity as that of the electromagnetic generating device 1, so that the electromagnetic generating device 1 is electrified to generate the magnetic field to control the elastic magnetic control valve core device 4 to move up and down; the larger the power-on quantity of the electromagnetic generating device 1 is, the more the generated magnetic field quantity is, the larger the magnetic field repulsive force is, the farther the elastic magnetic control valve core device 4 is away from the electromagnetic generating device 1, the larger the gap of the gas flow through the hole 31 is opened by the pushing-down movement of the elastic magnetic control valve core device 4, and the larger the gas flow flux is; conversely, the smaller the current of the electromagnetic generating device 1, the less the generated magnetic field amount and the less the magnetic field repulsive force, the closer the elastic magnetic control valve core device 4 is to the electromagnetic generating device 1, and the smaller the gap between the gas flow holes 31 opened by the downward movement of the elastic magnetic control valve core device 4, the less the gas flow amount.

The preferred technical scheme is as follows: the elastic magnetic control valve core device 4 comprises a magnet separation flexible elastic sheet 4A, a central magnet 4B and a middle elastic valve plug device 4C; the magnet separation flexible elastic sheet 4A is round and made of rubber material; the magnetic field of the central magnet 4B is the same as the magnetic field generated by electrifying the electromagnetic generating device 1, and the electromagnetic generating device 1 is fixedly installed, so the elastic magnetic control valve core device 4 is repelled to move up and down;

the periphery of the magnet separation flexible elastic sheet 4A is clamped between the electromagnetic generating device 1 and the gas flow valve core seat 3, and the magnet separation flexible elastic sheet 4A seals the component mounting port 21; a magnet movement sealing cavity 4D is formed between the magnet separation flexible elastic sheet 4A and the inner bottom of the electromagnetic generating device 1, the magnet movement sealing cavity 4D provides a space for the magnet separation flexible elastic sheet 4A and the central magnet 4B to move up and down, the central magnet 4B is fixed in the middle of the top of the magnet separation flexible elastic sheet 4A, the central magnet 4B is arranged in the magnet movement sealing cavity 4D, the top of the middle elastic valve plug device 4C is fixedly connected with the middle of the magnet separation flexible elastic sheet 4A, and the middle elastic valve plug device 4C is movably connected with the gas flowing hole 31 in a penetrating mode;

the magnet separation flexible elastic sheet 4A is used for positioning the center of the center magnet 4B and the center elastic valve plug device 4C; the middle elastic valve plug device 4C is arranged in the middle of the gas flow valve core seat 3 in the middle, and the top of the middle elastic valve plug device 4C is fixedly connected with the middle of the magnet separation flexible elastic sheet 4A so that the upper part of the middle elastic valve plug device 4C cannot be eccentrically deviated; the central magnet 4B and the middle elastic valve plug device 4C are concentrically and vertically corresponding to each other, so that the central magnet 4B and the middle elastic valve plug device 4C are centered in gravity, the central magnet 4B and the middle elastic valve plug device 4C move linearly up and down when being pulled/pushed by a magnetic field, and the gas flows through the holes 31, so that the gas is adjusted to be uniform integrally without eccentric deviation;

the magnet movement sealing cavity 4D is arranged for isolating the central magnet 4B from the fuel gas and preventing the central magnet 4B from being adhered to the fuel gas impurities and preventing the fuel gas from being chemically corroded and oxidizing the central magnet 4B; meanwhile, the magnet movement sealing cavity 4D provides a space for the magnet to separate the flexible elastic sheet 4A and the central magnet 4B from moving up and down and provides a space for the middle elastic valve plug device 4C to adjust the size of the gap of the gas flow through the hole 31 to move up and down;

the magnetic field generated by electrifying the electromagnetic generating device 1 is the same as the magnetic field of the central magnet 4B to generate repulsive force, the central magnet 4B is repelled, and the central magnet 4B synchronously drives the middle elastic valve plug device 4C to move up and down to adjust the gap size of the fuel gas flowing through the hole 31; namely: the larger the power-on quantity of the electromagnetic generating device 1 is, the more the generated magnetic field quantity is, the larger the magnetic field repulsive force is, the farther the central magnet 4B is away from the electromagnetic generating device 1 is, the larger the gap between the central magnet 4B and the middle elastic valve plug device 4C which are pushed down to open the gas flow through hole 31 is, and the larger the gas flow flux is; conversely, the smaller the amount of current supplied to the electromagnetic generator 1, the smaller the amount of magnetic field generated, and the smaller the repulsive force of the magnetic field, the more the ferrous metal of the central magnet 4B attracts the electromagnetic generator 1 and the intermediate elastic valve plug device 4C rises by its own repulsive force, and thus the closer the central magnet 4B is to the electromagnetic generator 1, the more the intermediate elastic valve plug device 4C rises, and the smaller the gap between the intermediate elastic valve plug device 4C and the opening gas flow holes 31 is, the smaller the gas flow rate is.

The central magnet 4B and the ferrous metal of the electromagnetic generating device 1 are magnetic fields attracted by opposite phases, in a normal state, the electromagnetic generating device 1 is not powered on, and the middle elastic valve plug device 4C is lifted by the self elastic force resetting property and the magnetic force of the central magnet 4B and the ferrous metal magnetic attraction of the electromagnetic generating device 1 so as to close the gas flowing hole 31;

the magnet separation flexible elastic sheet 4A, the central magnet 4B and the middle elastic valve plug device 4C can be assembled by a robot, and the production efficiency is improved.

The preferable technical scheme is as follows: the middle elastic valve plug device 4C at least comprises a return spring 4C1, a rubber plug 4C2 and a movable core rod 4C3, and the diameter of the rubber plug 4C2 is larger than that of the gas flow hole 31, so that the gas flow hole 31 can be closed and the gap size of the gas flow hole 31 can be adjusted; the return spring 4C1 is pressed between the rubber plug 4C2 and the bottom of the valve core cavity 22, and the rubber plug 4C2 is arranged at a hole below the gas flowing hole 31; the lower section of the movable core rod 4C3 is connected in the middle of the gas flowing hole 31 in a penetrating way, the lower end of the movable core rod 4C3 is fixedly connected with the rubber plug 4C2, and the upper end of the movable core rod 4C3 is fixedly connected with the middle of the magnet separation flexible elastic sheet 4A; the reset spring 4C1 jacks up the rubber plug 4C2 and the movable core rod 4C3 all the time through the self-rebound property, and the movable core rod 4C3 jacks up the magnet separation flexible elastic sheet 4A, so that the rubber plug 4C2 can close the gas flow hole 31; when the central magnet 4B moves up and down, the core rod 4C3 is driven to move up and down synchronously, so that the rubber plug 4C2 adjusts the gap size of the gas flow through the hole 31 to adjust the gas flow flux.

The up-and-down motion of the central magnet 4B synchronously drives the movable core rod 4C3 to move up-and-down, the up-and-down motion of the movable core rod 4C3 drives the rubber plug 4C2 to move up-and-down, and the gap size of the gas flow hole 31 is adjusted through the rubber plug 4C 2.

In a normal state, the electromagnetic generating device 1 is not electrified, when the central magnet 4B upwards magnetically attracts ferrous metal of the electromagnetic generating device 1, the movable core rod 4C3 and the rubber plug 4C2 are pulled and lifted, and the return spring 4C1 is used for assisting to jack the rubber plug 4C2 up through the self-elastic force return property to close the gas flow hole 31; the gas flowing hole 31 is round, and the rubber plug 4C2 is conical;

an upper spring positioning step 4C21 is arranged at the bottom of the rubber plug 4C2, a lower spring positioning step 225 is arranged at the bottom of the valve core cavity 22, the lower spring positioning step 225 is just suitable for the return spring 4C1, and two ends of the return spring 4C1 are propped against the corresponding upper spring positioning step 4C21 and the lower spring positioning step 225 for positioning; when the return spring 4C1 is assembled by using the automatic equipment, the return spring 4C1 is grabbed and placed in the valve core cavity 22, and then can fall to the spring lower positioning step 225 to erect the return spring 4C1; when the gas flow valve core seat 3 and the elastic magnetic control valve core device 4 are grabbed by automation equipment and put into the valve core cavity 22, the positioning step 4C21 on the spring at the bottom of the rubber plug 4C2 is inserted into the top of the return spring 4C1 for positioning; the return spring 4C1 is assembled by an automatic device (robot), and the production efficiency is improved.

The lower end of the movable core rod 4C3 extends to form a reverse-buckling hook 4C31, the top of the rubber plug 4C2 is provided with a reverse-buckling cavity 4C22, the lower end of the movable core rod 4C3 is inserted into the reverse-buckling cavity 4C22 from an insertion hole in the top of the rubber plug 4C2, and the cavity wall is tightly hooked through the reverse-buckling hook 4C31 to form fixed connection; the robot grabs and moves behind the core bar 4C3 and assembles in inserting its lower extreme in the overhead kick chamber 4C22 of rubber buffer 4C2, improves production efficiency.

The preferable technical scheme is as follows: the middle elastic valve plug device 4C further comprises a magnet lock pin 4C4 for fixing the center magnet 4B; the central magnet 4B is a central magnetic ring; a core penetrating hole 4A1 is formed in the middle of the magnet separation flexible elastic sheet 4A, a thickened wall ring 4A2 extends along the reverse side hole of the core penetrating hole 4A1, and the thickened wall ring 4A2 is used for increasing the sealing area and is clamped, fixed and connected more firmly; the top of the movable core rod 4C3 is provided with a concave hole 4C5, the thickened wall ring 4A2 can be just inserted into the concave hole 4C5, the top of the movable core rod 4C3 is connected with the magnet separation flexible elastic sheet 4A more firmly, the anti-falling capacity is better, the up-and-down movement pulling anti-falling capacity of the magnet separation flexible elastic sheet 4A is better, the central magnetic ring is fixed in the middle of the top of the magnet separation flexible elastic sheet 4A, the ring hole of the central magnetic ring, the core penetrating hole 4A1 and the concave hole 4C5 vertically correspond to each other, and the magnet core locking rod 4C4 is connected with the center of the ring hole of the central magnetic ring, the core penetrating hole 4A1 and the concave hole 4C5 in a penetrating and sealing mode; the magnet lock core rod 4C4 and the movable core rod 4C3 are fixed in a clamping way; the preferred technical scheme is as follows: a concave cavity 12 is formed in the inner bottom of the electromagnetic generating device 1; after the circumferential edge of the magnet separation flexible elastic sheet 4A is clamped on the edge between the electromagnetic generating device 1 and the gas flow valve core seat 3, the concave cavity 12 becomes a magnet movement sealing cavity 4D. Concave cavity 12 provides more spaces for setting up magnet motion seal chamber 4D, and simultaneously, central magnet 4B is closer to the magnetic induction coil of electromagnetism generating device 1, and electromagnetism generating device 1's magnetic field is better to central magnet 4B transmission, and the magnetic distance is closer, and the upper and lower motion of adjusting middle elastic valve plug device 4C is more stable.

In the assembling process, a robot firstly grabs the magnet separation flexible elastic sheet 4A, so that the thickened wall ring 4A2 is inserted into the concave hole 4C5 for positioning, then grabs the central magnetic ring and places the central magnetic ring in the middle of the magnet separation flexible elastic sheet 4A, then grabs the magnet lock core rod 4C4, so that the magnet lock core rod 4C4 is inserted downwards through the central magnetic ring and the core penetrating hole 4A1 and then inserted into the concave cavity 12, and the bottom of the magnet lock core rod 4C4 is clamped and fixed with the inner wall of the concave cavity 12, therefore, the magnet lock core rod 4C4 is connected with the movable core rod 4C3 and then clamps the central magnetic ring and the magnet separation flexible elastic sheet 4A tightly, and the gap between the magnet separation flexible elastic sheet 4A and the thickened wall ring 4A2 is sealed through the magnet separation flexible elastic sheet 4A; the structure ensures that the magnet lock core rod 4C4, the magnet separation flexible elastic sheet 4A and the movable core rod 4C3 are connected firmly and stably; the magnet lock core rod 4C4, the magnet separation flexible elastic sheet 4A and the movable core rod 4C3 are connected by a robot to complete assembly.

The preferable technical scheme is as follows: the middle elastic valve plug device 4C further comprises an upper positioning hole 4E, a positioning spring 4F and a lower positioning step 4G, the upper positioning hole 4E is formed in the inner top of the concave cavity 12, the lower positioning step 4G is formed in the top of the magnet lock core rod 4C4, the positioning spring 4F is arranged in the magnet movement sealing cavity 4D, the upper end of the positioning spring 4F is inserted into the upper positioning hole 4E, and the lower end of the positioning spring 4F is inserted into the lower positioning step 4G; because the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 have certain gravity, and the magnet separation flexible elastic sheet 4A is thinner, when the machine vibrates/shakes in the use process, the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 shake slightly, the rubber plug 4C2 follows up, the gas flow through gap is adjusted to be unstable, and the gas flow is unstable; after the positioning spring 4F is installed, when the machine vibrates/shakes in the use process, the positioning spring 4F can enable the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 to be more centered and stable, the eccentric shaking of the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 is greatly reduced, the size of a gas circulation gap is adjusted to be more stable, and the gas flow passes through a relatively stable constant flow;

meanwhile, after the positioning spring 4F is installed, the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 move up and down slowly and stably, and the rubber plug 4C2 adjusts the transition of the gas circulation gap size to be more stable and orderly.

The preferred technical scheme is as follows: the top edge of the gas flow valve core seat 3 is provided with a surrounding sealing groove 32, the periphery edge of the flexible elastic sheet 4A separated by the magnet is embedded in the surrounding sealing groove 32 along a ring body, and the periphery edge of the flexible elastic sheet 4A separated by the magnet is tightly pressed at the inner bottom of the electromagnetic generating device 1 to be sealed along the ring body.

When the robot for automatic production is used for assembly, the surrounding sealing groove 32 provides positioning for mounting the magnet separation flexible elastic sheet 4A, the magnet separation flexible elastic sheet 4A is grabbed and then placed at the top of the gas flow valve core seat 3, and the periphery of the magnet separation flexible elastic sheet 4A falls into the surrounding sealing groove 32 along a ring body to complete the mounting and positioning, so that the robot for automatic production is convenient to assemble and position, and the assembly efficiency is improved; meanwhile, the up-and-down movement pulling anti-falling performance of the magnet separation flexible elastic sheet 4A is better, and the magnet separation flexible elastic sheet 4A is prevented from possibly falling off.

The preferred technical scheme is as follows: the wall body of the gas flow valve core seat 3 is provided with a gas flow channel 3A, a gas inlet hole 23, the gas flow channel 3A, a gas flow hole 31 and a gas outlet hole 24 are communicated, and gas enters the gas flow channel 3A after entering from the gas inlet hole 23 and then only flows through the gas flow hole 31 to the gas outlet hole 24; according to the structure of the gas circulation valve core seat 3, a gas circulation path is reasonably arranged.

The preferable technical scheme is as follows: the lower wall body of the valve core cavity 22 is provided with a lower annular wall step 221, a lower sealing ring 222 is embedded on the lower annular wall step 221, the lower sealing ring 222 is made of rubber, and the bottom annular periphery of the gas flow valve core seat 3 presses the lower sealing ring 222, so that the bottom annular periphery of the gas flow valve core seat 3 is fixedly connected with the lower annular periphery of the valve core cavity 22 in a sealing manner.

The lower annular wall step 221 is provided to facilitate positioning of the gas flow valve core seat 3 after being installed in the valve core cavity 22, facilitate installation and positioning of the lower sealing ring 222, and facilitate sealing of the bottom annular periphery of the gas flow valve core seat 3 and the lower annular periphery of the valve core cavity 22 by pressing the lower sealing ring 222 against the bottom annular periphery of the gas flow valve core seat 3.

The robot for assembling the gas flow valve core seat 3 and positioning the lower sealing ring 222 is convenient for automatic production.

Preferably: a lower sealing ring groove is formed in the lower annular wall step 221, a robot which is automatically produced grabs the lower sealing ring 222 and then automatically guides the lower sealing ring to flow into the lower sealing ring groove through the lower annular wall step 221 to perform positioning, anti-dropping and anti-deviation after the lower sealing ring 222 is placed in the valve core cavity 22, and the lower sealing ring 222 is assembled more accurately and in place;

the preferred technical scheme is as follows: an upper annular wall step 223 is formed on the upper wall body of the valve core cavity 22, an upper sealing ring 224 is embedded on the upper annular wall step 223, and the upper sealing ring 224 is pressed on the upper peripheral edge of the gas flow valve core seat 3, so that the upper peripheral edge of the gas flow valve core seat 3 is hermetically and fixedly connected with the cavity opening wall of the valve core cavity 22.

The upper annular wall step 223 is provided to facilitate positioning of the gas flow valve core seat 3 after being installed in the valve core cavity 22, facilitate installation and positioning of the upper seal ring 224, and facilitate sealing of the upper annular periphery of the gas flow valve core seat 3 and the cavity opening annular periphery of the valve core cavity 22 by compressing the upper seal ring 224 at the upper annular periphery of the gas flow valve core seat 3.

The robot convenient for automatic production is used for assembling the core seat 3 of the gas flow valve and positioning the upper sealing ring 224.

Preferably: an upper seal ring groove is formed in the upper annular wall step 223, a robot which is automatically produced grabs the upper seal ring 224 and places the upper seal ring into the valve core cavity 22, then the upper seal ring is automatically guided to flow into the upper seal ring groove through the upper annular wall step 223 for positioning, preventing the falling and the deviation, and the upper seal ring 224 is assembled more accurately and in place;

the preferable technical scheme is as follows: a gas circulation cavity 3A1 is formed in the gas circulation valve core seat 3, the gas circulation cavity 3A1 provides space for installing the elastic magnetic control valve core device 4 and gas circulation, and a magnet separates the flexible elastic sheet 4A to seal a top cavity opening of the gas circulation cavity 3A 1; the outer side wall of the gas circulation valve core seat 3 is provided with a gas circulation surrounding groove 3A2, the gas circulation surrounding groove 3A2 is horizontally and correspondingly communicated with a gas inlet hole 23, the gas circulation surrounding groove 3A2 is used for being in butt joint communication with the gas inlet hole 23 to provide a wider gas flow channel 3A and adjust and balance gas flow ventilation pressure, the inner concave wall of the gas circulation surrounding groove 3A2 is provided with a gas inlet hole 3A3, one to three gas inlet holes 3A3 can be arranged, and the gas circulation surrounding groove 3A2, the gas inlet hole 3A3 and the gas circulation cavity 3A1 form a gas flow channel 3A; the gas inlet hole 23, the gas circulation surrounding groove 3A2, the gas inlet hole 3A3, the gas circulation cavity 3A1, the gas flow hole 31 and the gas outlet hole 24 are communicated. The gas circulation chamber 3A1 can adjust the gas circulation pressure balance, and the gas entering the gas circulation chamber 3A1 can pass through the gas flow holes 31 in a relatively balanced manner.

The preferred technical scheme is as follows: the gas circulation valve core seat 3 is integrally formed by plastic machinery through injection molding and is hard, and therefore, the gas circulation surrounding groove 3A2, the gas inlet hole 3A3, the gas circulation cavity 3A1, the gas flowing hole 31 and the surrounding sealing groove 32 are integrally formed through injection molding. The valve seat 2 is made of aluminum, and the valve seat 2 is integrally die-cast by an aluminum die-casting machine, whereby the component mounting port 21, the valve element cavity 22, the gas inlet hole 23, the gas outlet hole 24, the lower annular wall step 221, and the upper annular wall step 223 are integrally die-cast.

The concrete structure of this product is as follows:

a fuel gas proportional valve comprises an electromagnetic generating device 1 and a valve seat 2, wherein the electromagnetic generating device 1 is used for generating magnetic force (generating a magnetic field) by electrifying, and the electromagnetic generating device 1 is an electromagnetic generator; the top of the valve seat 2 is provided with a component mounting port 21, the inside of the valve seat is provided with a valve core cavity 22, the upper side wall of the valve seat is provided with a gas inlet hole 23, and the bottom of the valve seat is provided with a gas outlet hole 24; the valve core cavity 22 is funnel-shaped; the electromagnetic generating device 1 is centrally arranged at the component mounting port 21 and is used for centering the elastic magnetic control valve core device 4; the gas proportional valve is mainly suitable for a gas water heater; the shape/outer structure of the valve seat 2 is not limited to the shape or outer structure of the existing drawings.

A valve seat screw hole 25 is formed in one diagonal of four corners at the top of the valve seat 2, two valve seat screw holes 25 are formed, the other diagonal extends upwards to protrude out of two positioning columns 26, and the number of the positioning columns 26 is two; mounting holes 11 are formed in four corner positions at the bottom of the electromagnetic generating device 1, after the electromagnetic generating device 1 is mounted on the top of the valve seat 2, two positioning columns 26 are inserted into the mounting holes 11 for positioning, and the other two mounting holes 11 and the two valve seat screw holes 25 vertically correspond to each other and are screwed and fixed on the top of the valve seat 2 through two holes by screw assemblies. Therefore, the automatic production robot can install the electromagnetic generating device 1 on the top of the valve seat 2, then position the electromagnetic generating device and screw the electromagnetic generating device, and automatic assembly production is facilitated.

The valve core cavity 22 is internally provided with a gas flow valve core seat 3 and an elastic magnetic control valve core device 4 which are assembled in a separable way; the valve core cavity 22 and the gas flow valve core seat 3 are circular, and the gas flow valve core seat 3 can be just arranged in the valve core cavity 22 and cannot be loose; the gas flow valve core seat 3 is used for installing an elastic magnetic control valve core device 4;

the elastic magnetic control valve core device 4 comprises a magnet separation flexible elastic sheet 4A, a central magnet 4B, a return spring 4C1, a rubber plug 4C2, a movable core rod 4C3, a magnet lock core rod 4C4, an upper positioning hole 4E, a positioning spring 4F and a lower positioning step 4G,

the inner bottom of the electromagnetic generating device 1 is provided with a concave cavity 12; after the circumferential edge of the magnet separation flexible elastic sheet 4A is clamped on the edge between the electromagnetic generating device 1 and the gas flow valve core seat 3, the concave cavity 12 becomes a magnet movement sealing cavity 4D. The magnet movement sealed cavity 4D provides space for the magnet to separate the flexible elastic sheet 4A and the central magnet 4B to move up and down, the central magnet 4B is fixed in the middle of the top of the magnet separation flexible elastic sheet 4A, and the central magnet 4B is arranged in the magnet movement sealed cavity 4D. The concave cavity 12 provides more space for arranging the magnet movement sealing cavity 4D, meanwhile, the central magnet 4B is closer to a magnetic induction coil of the electromagnetic generating device 1, the magnetic field of the electromagnetic generating device 1 is better transmitted to the central magnet 4B, the magnetic distance is closer, and the middle elastic valve plug device 4C is adjusted to move up and down more stably;

the diameter of the rubber plug 4C2 is larger than that of the gas flowing hole 31, so that the gas flowing hole 31 can be closed and the size of the gap of the gas flowing hole 31 can be adjusted; the return spring 4C1 is pressed between the rubber plug 4C2 and the bottom of the valve core cavity 22, and the rubber plug 4C2 is arranged at a hole below the gas flowing hole 31; the lower section of the movable core rod 4C3 is connected with the gas flowing hole 31 in a penetrating way, the lower end of the movable core rod 4C3 is fixedly connected with the rubber plug 4C2, and the upper end of the movable core rod 4C3 is fixedly connected with the middle of the magnet separation flexible elastic sheet 4A; the reset spring 4C1 jacks up the movable core rod 4C3 through the rubber plug 4C2 all the time, and the movable core rod 4C3 jacks up the magnet separation flexible elastic sheet 4A; when the central magnet 4B moves up and down, the core rod 4C3 is driven to move up and down synchronously, so that the rubber plug 4C2 adjusts the gap size of the gas flow through the hole 31 to adjust the gas flow flux.

The central magnet 4B is a central magnetic ring; a core penetrating hole 4A1 is formed in the middle of the magnet separation flexible elastic sheet 4A, a thickened wall ring 4A2 extends along the reverse side hole of the core penetrating hole 4A1, and the thickened wall ring 4A2 is used for increasing the sealing area and is clamped and fixedly connected more firmly; the top of the movable core rod 4C3 is provided with a concave hole 4C5, the thickened wall ring 4A2 can be just inserted into the concave hole 4C5, the top of the movable core rod 4C3 is connected with the magnet separation flexible elastic sheet 4A more firmly, the anti-falling capacity is better, the up-and-down movement pulling anti-falling capacity of the magnet separation flexible elastic sheet 4A is better, the central magnetic ring is fixed in the middle of the top of the magnet separation flexible elastic sheet 4A, the ring hole, the core penetrating hole 4A1 and the concave hole 4C5 of the central magnetic ring vertically correspond to each other, and the magnet core locking rod 4C4 is connected with the centers of the central magnetic ring, the core penetrating hole 4A1 and the concave hole 4C5 in a penetrating and sealing mode; the magnet lock core rod 4C4 is connected with the movable core rod 4C3 through screw thread screwing, clamping, inverted buckle hook 4C31 connection and the like; after the magnet lock core rod 4C4 is connected with the movable core rod 4C3, the central magnetic ring and the magnet separation flexible elastic sheet 4A are clamped tightly, and the gap between the central magnetic ring and the magnet separation flexible elastic sheet 4A is sealed by the magnet separation flexible elastic sheet 4A and the thickened wall ring 4A 2; the structure ensures that the magnet lock core rod 4C4, the magnet separation flexible elastic sheet 4A and the movable core rod 4C3 are connected firmly and stably; the connection of the magnet lock core rod 4C4, the magnet separation flexible elastic sheet 4A and the movable core rod 4C3 can be completed by a robot.

The upper positioning hole 4E is formed in the inner top of the concave cavity 12, the lower positioning step 4G is formed in the top of the magnet lock core rod 4C4, the positioning spring 4F is arranged in the magnet movement sealing cavity 4D, the upper end of the positioning spring 4F is inserted into the upper positioning hole 4E, and the lower end of the positioning spring 4F is inserted into the lower positioning step 4G; because the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 have certain gravity, and the magnet separating flexible elastic thin sheet 4A is thinner, when the machine vibrates/shakes in the use process, the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 shake slightly, the rubber plug 4C2 follows up, the gas flow through gap is adjusted to be unstable, and the gas flow is unstable; after the positioning spring 4F is installed, when the machine vibrates/shakes in the use process, the positioning spring 4F can enable the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 to be more centered and stable, the eccentric shaking of the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 is greatly reduced, the size of a gas circulation gap is adjusted to be more stable, and the gas flow passes through a relatively stable constant flow; simultaneously, after installation positioning spring 4F, at central magnet 4B, magnet lock core pole 4C4, move core pole 4C3 up-and-down motion in-process more slowly, stabilize a bit, the rubber buffer 4C2 adjusts the gas circulation gap size transition more steadily orderly.

The lower wall body of the valve core cavity 22 is provided with a lower annular wall step 221, a lower sealing ring 222 is embedded on the lower annular wall step 221, the lower sealing ring 222 is made of rubber, and the lower sealing ring 222 is pressed on the bottom peripheral edge of the gas flow valve core seat 3, so that the bottom peripheral edge of the gas flow valve core seat 3 is fixedly connected with the lower annular wall of the valve core cavity 22 in a sealing manner.

The lower annular wall step 221 is provided to facilitate positioning of the gas flow valve core seat 3 after being installed in the valve core cavity 22, facilitate installation and positioning of the lower sealing ring 222, and facilitate sealing of the bottom periphery of the gas flow valve core seat 3 and the lower periphery of the valve core cavity 22 by pressing the lower sealing ring 222 against the bottom periphery of the gas flow valve core seat 3. The robot convenient for automatic production is used for assembling the core seat 3 of the gas flow valve and positioning the lower sealing ring 222.

An upper annular wall step 223 is formed on the upper wall body of the valve core cavity 22, an upper sealing ring 224 is embedded on the upper annular wall step 223, and the upper sealing ring 224 is pressed on the upper peripheral edge of the gas flow valve core seat 3, so that the upper peripheral edge of the gas flow valve core seat 3 is hermetically and fixedly connected with the cavity opening wall of the valve core cavity 22.

The upper annular wall step 223 is provided to facilitate positioning of the gas flow valve core seat 3 after being installed in the valve core cavity 22, facilitate installation and positioning of the upper seal ring 224, and facilitate sealing of the upper annular periphery of the gas flow valve core seat 3 and the cavity opening annular periphery of the valve core cavity 22 by compressing the upper seal ring 224 at the upper annular periphery of the gas flow valve core seat 3. The robot convenient for automatic production is provided with the gas flow valve core seat 3 and the upper sealing ring 224 for positioning.

The top edge of the gas flow valve core seat 3 is provided with a surrounding sealing groove 32, and the periphery edge of the magnet separation flexible elastic sheet 4A is embedded in the surrounding sealing groove 32 along a ring body

The surrounding sealing groove 32 provides positioning for mounting the magnet separation flexible elastic sheet 4A, and the mounting and positioning are completed when the periphery of the magnet separation flexible elastic sheet 4A falls into the surrounding sealing groove 32 along a ring body, so that the robot assembly and positioning in automatic production are facilitated, the assembly efficiency is improved, and errors or poor positioning are prevented; meanwhile, the up-and-down movement pulling anti-falling performance of the magnet separation flexible elastic sheet 4A is better, and the magnet separation flexible elastic sheet 4A is prevented from being possibly separated.

The bottom of the gas flow valve core seat 3 is provided with a gas flow hole 31; a gas circulation cavity 3A1 is formed in the gas circulation valve core seat 3, the gas circulation cavity 3A1 provides space for installing a movable core rod 4C3 and gas circulation, a valve core seat cavity opening is formed in the top of the gas circulation cavity 3A1, the top cavity opening of the gas circulation cavity 3A1 is sealed by the flexible elastic magnet separation sheet 4A, and a space is provided for the flexible elastic magnet separation sheet 4A to move up and down; the outer side wall of the gas circulation valve core seat 3 is provided with a gas circulation surrounding groove 3A2, the gas circulation surrounding groove 3A2 is horizontally and correspondingly communicated with a gas inlet hole 23, the gas circulation surrounding groove 3A2 is used for being communicated with the gas inlet hole 23 in a butt joint mode to provide a wider gas flow channel 3A and adjust and balance gas flow ventilation pressure, the inner concave wall of the gas circulation surrounding groove 3A2 is provided with two gas inlet holes 3A3, and the gas circulation surrounding groove 3A2, the gas inlet holes 3A3 and the gas circulation cavity 3A1 form a gas flow channel 3A; the gas inlet hole 23, the gas circulation surrounding groove 3A2, the gas inlet hole 3A3, the gas circulation cavity 3A1, the gas flow hole 31 and the gas outlet hole 24 are communicated. After entering from the gas inlet hole 23, the gas flows through the gas circulation surrounding groove 3A2, the gas inlet hole 3A3 and the gas circulation cavity 3A1, and then only flows through the gas flow holes 31 and then flows to the gas outlet hole 24; the gas leakage between the bottom circumference of the gas flow valve core seat 3 and the circumference of the lower part of the valve core cavity 22 is prevented, and the gas proportion regulation is influenced; the gas circulation chamber 3A1 can adjust the gas circulation pressure balance, and the gas entering the gas circulation chamber 3A1 can pass through the gas flow holes 31 in a relatively balanced manner.

The bottom peripheral bottom wall edge of the electromagnetic generating device 1 is screwed on the top of the valve seat 2 through a screw assembly, the bottom peripheral bottom wall of the electromagnetic generating device 1 is simultaneously pressed on the peripheral edge ring body of the magnet separation flexible elastic sheet 4A and the top of the peripheral edge of the gas flow valve core seat 3, the electromagnetic generating device 1 can press and fix the gas flow valve core seat 3, and the gas flow valve core seat 3 simultaneously transmits the pressure to the upper sealing ring 224 and the lower sealing ring 222, so that the upper peripheral edge of the gas flow valve core seat 3 is sealed with the cavity opening peripheral wall of the valve core cavity 22, and the bottom peripheral edge of the gas flow valve core seat 3 is sealed with the lower peripheral edge of the valve core cavity 22; thus, the magnet partitions the flexible elastic sheet 4A to seal the component mounting opening 21, and eventually seals the entire component mounting opening 21, and the purpose of sealing the component mounting opening 21 is to prevent gas leakage. The gas flowing valve core seat 3 and the magnet separation flexible elastic sheet 4A are easy to position and install through the corresponding matching of the valve core cavity 22, each step and the groove; the detachable (separable) gas flow valve core seat 3 is arranged to conveniently adopt an automatic robot to install the integrated valve core device assembly into the valve core cavity 22; the detachable gas flow valve core seat 3 is arranged, so that the elastic magnetic control valve core device 4 and the gas flow valve core seat 3 are conveniently preassembled by adopting an automatic production line to form an integrated valve core device assembly;

the magnetic field of the central magnet 4B is the same as the magnetic field generated by electrifying the electromagnetic generating device 1, and the electromagnetic generating device 1 is fixedly installed, so the elastic magnetic control valve core device 4 is repelled to move;

in a normal state, the electromagnetic generating device 1 is not powered on, the reset spring 4C1 jacks up the rubber plug 4C2 through the self elastic reset property, the magnetic force of the central magnet 4B and the ferrous metal magnetic attraction of the electromagnetic generating device 1 pull the magnet lock core rod 4C4 and the movable core rod 4C3 to be lifted, and therefore the rubber plug 4C2 closes the gas flow through the hole 31; the working principle of the gas proportion regulation of the product is as follows: the principle of like-pole repulsion and opposite-pole attraction of magnetic field is utilized. After the electromagnetic generating device 1 is electrified to generate a magnetic field, the central magnet 4B obtains a magnetic field (magnetic force) which is the same as that of the electromagnetic generating device 1, so that the electromagnetic generating device 1 is electrified to generate the magnetic field to control the central magnet 4B to move up and down; the up-and-down motion (motion) of the central magnet 4B synchronously drives the movable core rod 4C3 to move up-and-down, the up-and-down motion (motion) of the movable core rod 4C3 drives the rubber plug 4C2 to move up-and-down, and the gap size of the gas flow through the hole 31 is adjusted through the rubber plug 4C2, so that the gas flow flux is adjusted, and the gas flow proportion adjustment is formed.

The larger the power-on quantity of the electromagnetic generating device 1 is, the more the generated magnetic field quantity is, the larger the magnetic field repulsive force is, the farther the central magnet 4B is away from the electromagnetic generating device 1, the larger the gap between the gas flow through hole 31 opened by the rubber stopper 4C2 is, and the larger the gas flow quantity is, as the central magnet 4B, the magnet lock core rod 4C4 and the movable core rod 4C3 are pushed down to move; on the contrary, the smaller the energization amount of the electromagnetic generating device 1 is, the smaller the generated magnetic field amount is, the smaller the magnetic field repulsive force is, the more the magnetic force of the central magnet 4B attracts the ferrous metal of the electromagnetic generating device 1 and the return spring 4C1 thereof to jack up the rubber stopper 4C2 and the movable core rod 4C3 all the time by its own rebound property, the more the rubber stopper 4C2 rises, the closer the central magnet 4B is to the electromagnetic generating device 1, the more the central magnet 4B, the magnet lock core rod 4C4, the movable core rod 4C3 and the rubber stopper 4C2 rise integrally, and the smaller the gap between the rubber stopper 4C2 and the gas flowing hole 31 is opened, and the smaller the gas flowing amount is.

Claims (10)

1. A gas proportional valve comprises an electromagnetic generating device and a valve seat, wherein the electromagnetic generating device is used for generating magnetic force by electrifying, the top of the valve seat is provided with a component mounting port, the inside of the valve seat is provided with a valve core cavity, the upper side wall of the valve seat is provided with a gas inlet hole, and the bottom of the valve seat is provided with a gas outlet hole; electromagnetism generating device and the top fixed connection of disk seat and sealed part installing port, electromagnetism generating device sets up between two parties at part installing port, its characterized in that: the valve core cavity is internally provided with a gas flow valve core seat and an elastic magnetic control valve core device which can be assembled separately;

the bottom circumference of the gas circulation valve core seat is fixedly and hermetically connected with the lower circumference wall of the valve core cavity;

the electromagnetic generating device compresses and fixes the gas flow valve core seat;

the bottom of the gas flow valve core seat is provided with a gas flow hole; the gas flow-through hole is in penetrating type and movably connected with an elastic magnetic control valve core device in a penetrating way; the fuel gas can only flow through the fuel gas flowing hole and then flow to the fuel gas outlet hole after entering from the fuel gas inlet hole;

the electromagnetic generating device is used for controlling the elastic magnetic control valve core device to move up and down through the magnetic force of the electromagnetic generating device so as to adjust the size of a gap of a gas flowing hole;

the elastic magnetic control valve core device is used for elastically adjusting the size of a gap of a gas flow through hole so as to adjust the gas flow flux and form gas flow proportion adjustment.

2. A gas proportioning valve according to claim 1 wherein: the elastic magnetic control valve core device comprises a magnet separation flexible elastic sheet, a central magnet and a middle elastic valve plug device;

the periphery of the magnet separation flexible elastic sheet is clamped between the electromagnetic generating device and the gas circulation valve core seat, and the magnet separation flexible elastic sheet seals the component mounting opening; a magnet movement sealing cavity is formed between the flexible elastic sheet separated by the magnet and the inner bottom of the electromagnetic generating device and provides a space for the magnet to separate the flexible elastic sheet and the central magnet to move up and down;

the electromagnetic generating device is used for controlling the central magnet to move up and down through the magnetic force of the electromagnetic generating device, and the central magnet synchronously drives the middle elastic valve plug device to move up and down to adjust the gap size of a gas flowing hole.

3. A gas proportioning valve according to claim 2 wherein: the middle elastic valve plug device at least comprises a reset spring, a rubber plug and a movable core rod, the diameter of the rubber plug is larger than that of the gas flowing hole, the reset spring is propped between the rubber plug and the bottom of the valve core cavity, the rubber plug is arranged at an orifice below the gas flowing hole, the lower section of the movable core rod penetrates through the gas flowing hole, the lower end of the movable core rod is fixedly connected with the rubber plug, and the upper end of the movable core rod is fixedly connected with the middle of the flexible elastic sheet separated from the magnet; the reset spring jacks up the rubber plug and the movable core rod all the time through the self-rebound property, and the movable core rod jacks up the magnet separation flexible elastic sheet; when the central magnet moves up and down, the movable core rod is synchronously driven to move up and down so that the rubber plug adjusts the size of the gap of the gas flowing hole to adjust the gas flow flux.

4. A gas proportioning valve according to claim 3 wherein: the middle elastic valve plug device also comprises a magnet lock core rod for fixing the central magnet; the central magnet is a central magnetic ring; a core penetrating hole is formed in the middle of the magnet separation flexible elastic sheet, and a thickened wall ring extends along the reverse side hole of the core penetrating hole; the top of the movable core rod is provided with a concave hole, the thickened wall ring is inserted into the concave hole, the central magnetic ring is fixed in the middle of the top of the flexible elastic sheet separated by the magnet, and the magnet lock core rod is connected with the central magnetic ring, the core penetrating hole and the center of the concave hole in a penetrating mode in a fixed and sealed mode.

5. A gas proportioning valve according to claim 2 wherein: a concave cavity is formed in the inner bottom of the electromagnetic generating device; the peripheral edge of the flexible elastic sheet separated by the magnet is clamped on the edge between the electromagnetic generating device and the gas flow valve core seat, so that the concave cavity becomes a magnet movement sealing cavity.

6. A gas proportioning valve according to claim 2 wherein: the top edge of the gas circulation valve core seat is provided with a surrounding sealing groove, the periphery edge of the flexible elastic sheet separated by the magnet is embedded into the surrounding sealing groove along a ring body, and the periphery edge of the flexible elastic sheet separated by the magnet is pressed at the inner bottom of the electromagnetic generating device and is sealed along the ring body.

7. A gas proportioning valve according to claim 1 wherein: the wall body of the gas flow valve core seat is provided with a gas flow channel, the gas inlet hole, the gas flow channel, the gas flow hole and the gas outlet hole are communicated, and gas enters the gas flow channel after entering from the gas inlet hole and then only flows through the gas flow hole and then flows to the gas outlet hole.

8. The gas proportioning valve of any of claims 1 to 7 wherein: the lower wall body of the valve core cavity is provided with a lower annular wall step, a lower sealing ring is embedded on the lower annular wall step, and the lower sealing ring is pressed at the edge of the bottom periphery of the gas circulation valve core seat, so that the bottom periphery of the gas circulation valve core seat is fixedly connected with the lower annular wall of the valve core cavity in a sealing manner.

9. A gas proportioning valve according to any one of claims 1 to 7 wherein: the upper wall body of the valve core cavity is provided with an upper annular wall step, an upper sealing ring is embedded on the upper annular wall step, and the upper sealing ring is pressed at the periphery of the upper part of the gas circulation valve core seat, so that the periphery of the upper part of the gas circulation valve core seat is in sealing and fixed connection with the periphery of the cavity opening wall of the valve core cavity.

10. A gas proportioning valve according to any one of claims 1 to 7 wherein: a gas circulation cavity is formed in the gas circulation valve core seat; the outer side wall of the gas circulation valve core seat is provided with a gas circulation surrounding groove, the gas circulation surrounding groove is horizontally and correspondingly communicated with a gas inlet hole, the inner concave wall of the gas circulation surrounding groove is provided with a gas inlet hole, and the gas circulation surrounding groove, the gas inlet hole and the gas circulation cavity form a gas flow channel; the gas inlet hole, the gas circulation surrounding groove, the gas inlet hole, the gas circulation cavity, the gas flow hole and the gas outlet hole are communicated.

Images