CN212297783U - Overheating excessive open-circuit gas valve - Google Patents
Overheating excessive open-circuit gas valve Download PDFInfo
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- CN212297783U CN212297783U CN202020629439.1U CN202020629439U CN212297783U CN 212297783 U CN212297783 U CN 212297783U CN 202020629439 U CN202020629439 U CN 202020629439U CN 212297783 U CN212297783 U CN 212297783U
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Abstract
The utility model relates to the technical field of gas valves, in particular to an excessive overheating breaking gas valve, which comprises a main channel, a valve seat, a floating ball, a ball chamber, an elastic restoring piece, a pressure regulating channel, a breakable connecting body, a blocking net, an elastic pipe body, a nozzle, a slow storage chamber and a restoring mechanism, wherein a first annular blocking part and a second annular blocking part are arranged between the ball chamber and the main channel, and an air inlet and an air outlet are respectively arranged on the first annular blocking part and the second annular blocking part; the slow storage chamber is arranged on one side of the ball chamber and is communicated with the ball chamber; the floating ball is movably arranged in the ball chamber, the elastic pipe body is sequentially provided with an insertion part and a round platform shoulder part along the axial direction, the outer diameter of the insertion part is smaller than that of the round platform shoulder part, the insertion part is arranged in the main channel, the round platform shoulder part is abutted against the end face of the valve seat, and the barrier net is arranged in the main channel and is located between the air inlet and the elastic pipe body. When the temperature of the valve body exceeds a certain value or the gas passing through the valve body exceeds a certain flow, the valve body is automatically switched off.
Description
Technical Field
The utility model relates to a gas valve technical field especially relates to an overheated excessive gas valve that opens circuit.
Background
The gas valve is widely applied as a device for controlling the on-off of gas, and is often used between a household gas pipeline and a gas stove connecting hose to control the on-off of gas. The general process of gas leakage, which is highly susceptible to fires and explosions, is generally that gas slowly leaking into a space reaches the ignition point and then starts to catch fire, after which the high temperature causes the connecting hose to melt or the gas valve to leak and then more gas to leak, and then an explosion or a more severe fire occurs. For solving this problem, current can be at the gas valve of automatic circuit break under high temperature, nevertheless this gas valve can only suffer to burn at gas valve itself, temperature rise after can play a role, the situation that the mounted position of gas valve is difficult for being burnt by the fire often appears in the actual conditions, leads to even the gas leaks and leads to catching fire, and because the gas valve is not burnt by the fire leads to its temperature to fail to reach the value of circuit break, leads to the phenomenon that this automatic circuit break's gas valve still became invalid under the high temperature.
Therefore, there is a need for an overheat excessive shutoff gas valve that can automatically shut off when the temperature of the valve body itself exceeds a certain value or when the flow rate of gas passing through the valve body exceeds a certain flow rate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an overheated gas valve that opens circuit excessively to prior art not enough, when the temperature of valve body itself surpassed a definite value or the gas through the valve body surpassed certain flow, the gas valve automatic disconnection.
In order to achieve the purpose, the utility model discloses an excessive overheat breaking gas valve, which comprises a main channel and a valve seat, and also comprises a floating ball, a ball chamber, an elastic restoring piece, a pressure regulating channel, a breakable connecting body, a blocking net, an elastic pipe body, a nozzle, a slow storage chamber, a rotary connecting piece and a restoring mechanism for restoring the floating ball, wherein the main channel, the ball chamber and the slow storage chamber are all arranged on the valve seat; the ball chamber is provided with an air inlet and an air outlet, the air inlet and the air outlet are communicated with the main channel, and the caliber of the air outlet is smaller than the diameter of the floating ball; an annular baffle part I and an annular baffle part II are arranged between the ball chamber and the main channel, and an air inlet and an air outlet are respectively arranged on the annular baffle part I and the annular baffle part II; the ball chamber and the buffer chamber are arranged between the first annular baffle part and the second annular baffle part; the slow storage chamber is arranged on one side of the ball chamber and is communicated with the ball chamber; the pressure regulating channel is arranged on the first annular blocking part and is arranged in parallel with the air inlet, and the diameter of the pressure regulating channel is smaller than that of the air inlet; the floating ball is movably arranged in the ball chamber, the diameter of the floating ball is larger than the caliber of the buffer chamber, and the floating ball is connected with the recovery mechanism through the elastic recovery piece; the connecting nozzle is connected to one end of the main channel close to the air outlet through a breakable connecting body; the elastic pipe body is arranged in the main channel and located on the outer side of the air inlet, the elastic pipe body is sequentially provided with an inserting portion and a round platform shoulder portion along the axial direction, the outer diameter of the inserting portion is smaller than that of the round platform shoulder portion, the inserting portion is arranged in the main channel, the round platform shoulder portion is abutted to the end face of the valve seat, and the blocking net is arranged in the main channel and located between the air inlet and the elastic pipe body.
Preferably, the breakable connecting body is tubular, one end of the breakable connecting body is provided with a connecting thread connected with the valve seat, the other end of the breakable connecting body is provided with a hollow retaining ring portion, the nozzle is provided with an annular connecting portion and a connecting pipe portion, the connecting pipe portion is arranged through the hollow retaining ring portion, and the annular connecting portion is located between the hollow retaining ring portion and the end face of the valve seat.
Preferably, the open end of slow reservoir is provided with the butt cambered surface that is used for with the floater contact, and the position that the butt cambered surface is close to the air inlet is provided with a breach, and when the floater butt was in the butt cambered surface, the air current accessible breach from the pressure regulating channel flow direction slow reservoir got into the ball room.
Preferably, the outer surface of the end of the rotary connecting piece is provided with a hexahedral part, a connecting thread and an abutting oblique/arc surface are arranged inside the rotary connecting piece, one end, away from the insertion part, of the circular truncated cone shoulder part is smaller than the other end of the circular truncated cone shoulder part, and one end, away from the insertion part, of the circular truncated cone shoulder part abuts against the abutting oblique/arc surface.
Preferably, the recovery mechanism comprises a pressing cap, a supporting tube arranged on the valve seat, and a spring for recovering the position of the pressing cap, the pressing cap is arranged on the supporting tube in a reciprocating manner, two ends of the spring are respectively connected with the supporting tube and the pressing cap, and two ends of the elastic recovery member are respectively connected with the floating ball and the pressing cap.
Preferably, the pressing part comprises a pressing cap, a telescopic pipe and an adjusting pin for adjusting the compression amount of the elastic recovery part, one end of the telescopic pipe is arranged in the middle of the supporting pipe body in a telescopic mode, the pressing cap is arranged between the pressing cap and the supporting pipe body in a telescopic mode, a spring is arranged between the pressing cap and the supporting pipe body, the pressing cap is covered at one end of the supporting pipe body, the adjusting pin is in threaded connection with the middle of the telescopic pipe, and two ends of the elastic recovery part are respectively abutted to the floating ball and the.
Preferably, the melting point temperature of the elastic tube body is 110-500 ℃.
Preferably, the diameter of the pressure regulating channel is 0.1-0.45 times of the diameter of the air inlet.
Preferably, the breakable connecting body is a breakable connecting body made of plastic.
Preferably, the fusing temperature of the breakable connection body is 150 to 500 ℃.
The utility model has the advantages that: the utility model discloses an overheated excessive gas valve that opens circuit, when the gas through the main entrance is excessive, the gas through pressure regulating channel flow direction slow storage chamber can promote the floater and overcome the effort of elastic recovery piece to the floater and the gravity of floater self in vertical direction for the floater come-up promotes the floater and laminates in the gas outlet through the gas promotion floater of air inlet flow direction ball room on the horizontal direction simultaneously, makes the gas can't form through the gas outlet discharge and opens circuit. When the overheating excessive open-circuit gas valve of the utility model is subjected to high temperature, the elastic tube body is melted into a molten state to block the separation net to form open circuit. The utility model discloses an overheated gas valve that opens circuit excessively can take place to open circuit under overflowing, the overheated condition, can avoid the gas further to leak and cause more serious accident.
Drawings
Fig. 1 is a schematic view of the partial cross-sectional structure of the present invention.
Fig. 2 is a schematic view of the structure of the present invention viewed from the right.
Fig. 3 is a schematic sectional view in the direction of a-a in fig. 2.
Fig. 4 is a schematic view of the local three-dimensional decomposition structure of the present invention.
The reference numerals include:
1-valve seat
11-annular first retaining part 12-annular second retaining part
2-main channel 3-floating ball
4-ball chamber 41-air inlet 42-air outlet
5-elastic restoring piece 6-pressure regulating channel
7-buffer reservoir 71-gap
8-recovery mechanism 81-supporting tube 82-pressing cap
83-telescopic tube 84-adjusting pin
9-elastic tube 91-insertion tube 92-tube shoulder
10-rotating connecting piece
101-breakable connecting body 102-hollow retaining ring part
103-barrier net.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model discloses an excessive overheat break-off gas valve, including main channel 2 and valve seat 1, still include floater 3, ball room 4, elasticity restore 5, pressure regulating channel 6, can cut off connector 101, block net 103, elasticity body 9, connector, slow reservoir 7, swivel joint spare 10 and be used for making the recovery mechanism 8 that the floater 3 resets, main channel 2, ball room 4, slow reservoir 7 all set up in valve seat 1; the ball chamber 4 is provided with an air inlet 41 and an air outlet 42, the air inlet 41 and the air outlet 42 are communicated with the main channel 2, and the caliber of the air outlet 42 is smaller than the diameter of the floating ball 3; an annular baffle part I11 and an annular baffle part II 12 are arranged between the ball chamber 4 and the main channel 2, and the air inlet 41 and the air outlet 42 are respectively arranged on the annular baffle part I11 and the annular baffle part II 12; the ball chamber 4 and the buffer chamber 7 are arranged between the first annular baffle part 11 and the second annular baffle part 12; the slow storage chamber 7 is arranged at one side of the ball chamber 4 and is communicated with the ball chamber 4; the pressure regulating channel 6 is arranged on the first annular blocking part 11 and is arranged in parallel with the air inlet 41, and the diameter of the pressure regulating channel 6 is smaller than that of the air inlet 41; the floating ball 3 is movably arranged in the ball chamber 4, the diameter of the floating ball 3 is larger than the caliber of the buffer chamber 7, and the floating ball 3 is connected with the recovery mechanism 8 through the elastic recovery piece 5; the nozzle is connected to one end of the main channel 2 close to the air outlet 42 through a breakable connecting body 101; the elastic tube body 9 is arranged in the main channel 2 and located outside the air inlet 41, the elastic tube body 9 is sequentially provided with an insertion portion 91 and a circular truncated cone shoulder portion 92 along the axial direction, the outer diameter of the insertion portion 91 is smaller than that of the circular truncated cone shoulder portion 92, the insertion portion 91 is arranged in the main channel 2, the circular truncated cone shoulder portion 92 abuts against the end face of the valve seat 1, and the blocking net 103 is arranged in the main channel 2 and located between the air inlet 41 and the elastic tube body 9. The utility model discloses an overheated excessive gas valve that opens circuit, when the gas through main entrance 2 is excessive, the gas through pressure regulating channel 6 flow direction slow storage chamber 7 can promote floater 3 and overcome the effort of elastic recovery piece 5 to floater 3 and the gravity of floater 3 self in vertical direction for floater 3 come-up, promote floater 3 and laminate in gas outlet 42 through the gas of air inlet 41 flow direction ball room 4 on the horizontal direction simultaneously, make the gas can't form the broken circuit through gas outlet 42 discharge. When the overheating excessive open-circuit gas valve of the utility model is subjected to high temperature, the elastic tube body 9 is melted into a molten state to block the blocking net 103 to form open circuit. The utility model discloses an overheated gas valve that opens circuit excessively can take place to open circuit under overflowing, the overheated condition, can avoid the gas further to leak and cause more serious accident.
In addition, the rotary connector 10 can be connected with a gas pipeline or a hose, due to the existence of the elastic tube body 9, the angular rotation allowance of the valve seat 1 and the rotary connector 10 for connection and fastening is larger, meanwhile, the circular truncated cone shoulder 92 is pressed on the end face of the end of the threaded connection tube, gas enters the main channel 2 of the valve seat 1 through the middle of the elastic tube body 9 and is connected tightly, and when the relative angle of the valve seat 1 and the rotary connector 10 is adjusted, the gas is not easy to leak, so that the rotary connector is convenient to adapt to the rotation requirement.
Preferably, the breakable connecting body 101 is tubular, one end of the breakable connecting body 101 is provided with a connecting thread connected with the valve seat 1, the other end of the breakable connecting body 101 is provided with a hollow retainer part 102, the nipple is provided with an annular connecting part and a connecting pipe part, the connecting pipe part is arranged through the hollow retainer part 102, and the annular connecting part is located between the hollow retainer part 102 and the end surface of the valve seat 1. The utility model discloses a breakable connector 101 is receiving radial effort and is easily taking place the fracture, causes the flow grow in the twinkling of an eye through main entrance 2 to trigger 3 come-up of floater and block up gas outlet 42. The utility model discloses an overheated excessive gas valve that opens circuit, when needing to open circuit fast under the emergency, can beat disconnected connector 101 for but disconnected connector 101 breaks off, thereby realizes opening circuit fast.
Preferably, an abutting arc surface for contacting with the floating ball 3 is arranged at the opening end of the buffer storage chamber 7, a notch 71 is arranged at a position of the abutting arc surface close to the air inlet 41, and when the floating ball 3 abuts against the abutting arc surface, the air flow flowing from the pressure regulating channel 6 to the buffer storage chamber 7 can enter the ball chamber 4 through the notch 71. The utility model discloses an overheated gas valve that opens circuit excessively, control is sensitive, when the flow of the gas of main entrance 2 was excessive, realization that can be quick opened circuit.
Preferably, the outer surface of the end of the rotary joint 10 is provided with a hexahedral portion, the rotary joint 10 is internally provided with a connecting thread and an abutting inclined/arc surface, one end of the circular truncated cone shoulder 92 far away from the insertion portion 91 is smaller than the other end thereof, and one end of the circular truncated cone shoulder 92 far away from the insertion portion 91 abuts against the abutting inclined/arc surface. The utility model discloses an overheated gas valve that opens circuit excessively, the stable performance easily connects and adjusts the angle between swivel connected coupler 10 and the disk seat 1.
Preferably, the restoring mechanism 8 includes a pressing cap 82, a supporting tube 81 disposed on the valve seat 1, and a spring for restoring the position of the pressing cap 82, the pressing cap 82 is disposed on the supporting tube 81 in a reciprocating manner, two ends of the spring are respectively connected to the supporting tube 81 and the pressing cap 82, and two ends of the elastic restoring member 5 are respectively connected to the floating ball 3 and the pressing cap 82. The utility model discloses an overheated gas valve that opens circuit excessively, when floater 3 blockked up gas outlet 42, can push down and press cap 82, make floater 3 reply to the open end of slow storage chamber 7 to form the route. The utility model discloses an overheated excessive open circuit gas valve excessively causes the back accessible that opens circuit to press down and press cap 82 to form the route.
Preferably, the pressing member includes a pressing cap 82, a telescopic tube 83 and an adjusting pin 84 for adjusting the compression amount of the elastic restoring member 5, one end of the telescopic tube 83 is disposed on the pressing cap 82 and telescopically disposed in the middle of the supporting tube 81, a spring is disposed between the pressing cap 82 and the supporting tube 81, the pressing cap 82 covers one end of the supporting tube 81, the adjusting pin 84 is in threaded connection with the middle of the telescopic tube 83, and two ends of the elastic restoring member 5 are respectively abutted to the floating ball 3 and the adjusting pin 84. Specifically, the adjusting pin 84 has a connecting portion screwed to the pressing cap 82 at one end thereof and an abutting bowl portion for abutting against the elastic restoring member 5 at the other end thereof. The utility model discloses an overheated gas valve that opens circuit excessively, adjustable dynamics that acts on floater 3 to the flow through main entrance 2 when the regulation needs to take place the open circuit.
Preferably, the melting point temperature of the elastic tube body 9 is 110 ℃ to 500 ℃. The utility model discloses an overheated gas valve that opens circuit excessively, elasticity body 9 can form when taking place the melting and open circuit.
Preferably, the diameter of the pressure regulating channel 6 is 0.1 to 0.45 times of the diameter of the air inlet 41. The utility model discloses an overheated excessive circuit break gas valve, it is sensitive to take place to respond when opening circuit when excessive.
Preferably, the breakable connecting body 101 is a breakable connecting body 101 made of plastic. The utility model discloses an overheated gas valve that opens circuit excessively can take place the fusing when the high temperature, forms excessively to trigger 3 come-up formation of floater and open circuit. Specifically, the fusing temperature of the breakable connection body 101 is 150 ℃ to 500 ℃.
In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the effectiveness of the prior art and has practicability, and thus it is a product with practical value.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. An overheating excessive shutoff gas valve comprising a valve seat and a main passage, characterized in that: the ball valve also comprises a floating ball, a ball chamber, an elastic restoring piece, a pressure regulating channel, a breakable connecting body, a blocking net, an elastic pipe body, a connecting nozzle, a slow storage chamber, a rotary connecting piece and a restoring mechanism for restoring the floating ball, wherein the main channel, the ball chamber and the slow storage chamber are arranged on a valve seat;
the ball chamber is provided with an air inlet and an air outlet, the air inlet and the air outlet are communicated with the main channel, and the caliber of the air outlet is smaller than the diameter of the floating ball; an annular baffle part I and an annular baffle part II are arranged between the ball chamber and the main channel, and an air inlet and an air outlet are respectively arranged on the annular baffle part I and the annular baffle part II; the ball chamber and the buffer chamber are arranged between the first annular baffle part and the second annular baffle part;
the slow storage chamber is arranged on one side of the ball chamber and is communicated with the ball chamber;
the pressure regulating channel is arranged on the first annular blocking part and is arranged in parallel with the air inlet, and the diameter of the pressure regulating channel is smaller than that of the air inlet;
the floating ball is movably arranged in the ball chamber, the diameter of the floating ball is larger than the caliber of the buffer chamber, and the floating ball is connected with the recovery mechanism through the elastic recovery piece;
the connecting nozzle is connected to one end of the main channel close to the air outlet through a breakable connecting body;
the elastic pipe body is arranged in the main channel and located outside the air inlet, the elastic pipe body is sequentially provided with an insertion part and a circular truncated cone shoulder part along the axial direction, the outer diameter of the insertion part is smaller than that of the circular truncated cone shoulder part, the insertion part is arranged in the main channel, the rotary connecting piece is connected to the valve seat through threads and abuts against the circular truncated cone shoulder part on the end face of the valve seat, and the blocking net is arranged in the main channel and located between the air inlet and the elastic pipe body.
2. An overheating excessive shutoff gas valve according to claim 1, wherein: the connecting device is characterized in that the breakable connecting body is tubular, one end of the breakable connecting body is provided with a connecting thread connected with the valve seat, the other end of the breakable connecting body is provided with a hollow retaining ring portion, the connecting nozzle is provided with an annular connecting portion and a connecting pipe portion, the connecting pipe portion penetrates through the hollow retaining ring portion, and the annular connecting portion is located between the hollow retaining ring portion and the end face of the valve seat.
3. An overheating excessive shutoff gas valve according to claim 1, wherein: the open end of slow reservoir is provided with the butt cambered surface that is used for with the floater contact, and the position that the butt cambered surface is close to the air inlet is provided with a breach, and when the floater butt was in the butt cambered surface, the air current accessible breach from the pressure regulating channel flow direction slow reservoir got into the ball room.
4. An overheating excessive shutoff gas valve according to claim 1, wherein: the outer surface of the end part of the rotary connecting piece is provided with a hexahedron part, a connecting thread and an abutting oblique/arc surface are arranged in the rotary connecting piece, one end, away from the inserting part, of the circular truncated cone shoulder part is smaller than the other end of the circular truncated cone shoulder part, and one end, away from the inserting part, of the circular truncated cone shoulder part abuts against the abutting oblique/arc surface.
5. An overheating excessive shutoff gas valve according to claim 1, wherein: the recovery mechanism comprises a pressing cap, a supporting pipe body arranged on the valve seat and a spring used for recovering the position of the pressing cap, the pressing cap can be arranged on the supporting pipe body in a reciprocating mode, two ends of the spring are respectively connected with the supporting pipe body and the pressing cap, and two ends of the elastic recovery piece are respectively connected with the floating ball and the pressing cap.
6. An overheating excessive shutoff gas valve according to claim 1, wherein: the recovery mechanism still includes according to cap, flexible pipe and the adjusting pin that is used for adjusting the compression capacity of elasticity recovery piece, and the one end of flexible pipe sets up in according to the cap and scalable the setting in the middle part that supports the body, is provided with the spring according to between cap and the support body, presses the cap cover in the one end that supports the body, and adjusting pin threaded connection is in the middle part of flexible pipe, the both ends of elasticity recovery piece respectively with floater, adjusting pin butt.
7. An overheating excessive shutoff gas valve according to claim 1, wherein: the melting point temperature of the elastic tube body is 110-500 ℃.
8. An overheating excessive shutoff gas valve according to claim 1, wherein: the diameter of the pressure regulating channel is 0.1-0.45 times of the diameter of the air inlet.
9. An overheating excessive shutoff gas valve according to any one of claims 1 to 8, wherein: the breakable connecting body is made of plastic.
10. An overheating excessive shutoff gas valve according to any one of claims 1 to 8, wherein: the fusing temperature of the breakable connecting body is 150-500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020629439.1U CN212297783U (en) | 2020-04-24 | 2020-04-24 | Overheating excessive open-circuit gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020629439.1U CN212297783U (en) | 2020-04-24 | 2020-04-24 | Overheating excessive open-circuit gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297783U true CN212297783U (en) | 2021-01-05 |
Family
ID=73974153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020629439.1U Active CN212297783U (en) | 2020-04-24 | 2020-04-24 | Overheating excessive open-circuit gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297783U (en) |
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2020
- 2020-04-24 CN CN202020629439.1U patent/CN212297783U/en active Active
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