CN217272073U

CN217272073U - Safety gas valve

Info

Publication number: CN217272073U
Application number: CN202221189324.0U
Authority: CN
Inventors: 严格; 戴静; 欧吉林; 尹峡
Original assignee: Chongqing Xiangzhong Gas Equipment Co ltd
Current assignee: Chongqing Xiangzhong Gas Equipment Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-23
Anticipated expiration: 2032-05-17

Abstract

The utility model belongs to the technical field of gas valves and discloses a safe gas valve, which comprises a valve body, wherein both ends of the valve body are respectively provided with a gas inlet end and a gas outlet end, a rotatable valve core is arranged inside the valve body, and the upper end of the valve core is connected with a valve rod; the square groove has been seted up at the top of valve rod, and is in install corresponding to the position of valve rod on the valve body and support the cover the outside cover that supports the cover is equipped with rotatable spiral cover, just is in the inside of spiral cover is provided with the actuating lever with square groove matched with, the utility model discloses a spiral cover moves down along supporting the cover, drives the actuating lever and gets into the square inslot portion, under the drive of spiral cover, through the cooperation transmission between actuating lever and the square groove, and then drives the case at the valve body internal rotation, loosens behind the swing handle, under the effect of first spring, actuating lever and square groove separate once more to avoid changing the on-state of gas valve between accident.

Description

Safety gas valve

Technical Field

The utility model belongs to the technical field of the gas valve, concretely relates to safe gas valve.

Background

The gas valve is a novel safety matching device for gas pipeline engineering, is used for cutting, connecting and adjusting gas in pipelines, has good control characteristic and closing sealing performance, is suitable for various gas medium pipelines such as city gas, liquefied petroleum gas, natural gas and oxygen, and has higher and higher requirements on the manufacturing process of the gas valve along with the continuous development of science and technology.

In daily life, the gas valve generally does not need to be frequently started and stopped, but because the switch of the gas valve is exposed outside, misoperation is easy to occur, so that the valve is opened or closed under the unexpected condition, and the phenomenon of gas pressure reduction can occur sometimes in the peak period of gas use, so that residents can be influenced when cooking.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safe gas valve to the gas valve switch who provides among the above-mentioned background art of solution is easily by the mistake start-up and with the gas peak period take place the gas and supply the problem that the pressure reduces.

In order to achieve the above object, the utility model provides a following technical scheme: a safe gas valve comprises a valve body, wherein both ends of the valve body are respectively provided with a gas inlet end and a gas outlet end, a rotatable valve core is arranged inside the valve body, a valve hole is formed in the valve core, and the upper end of the valve core is connected with a valve rod; the top of the valve rod is provided with a square groove, a support sleeve is arranged on the valve body at a position corresponding to the valve rod, a rotatable screw cap is sleeved outside the support sleeve and can slide along the support sleeve, and a first spring is arranged between the screw cap and the support sleeve; the upper part of the rotary cover is connected with a rotary handle, and a driving rod matched with the square groove is arranged in the rotary cover.

Preferably, a plurality of sealing rings are arranged outside the air outlet end, and threads are arranged outside the air inlet end.

Preferably, a barometer is installed on one side of the valve body adjacent to the screw cap, and the barometer is close to the air outlet end.

Preferably, a control box is fixedly connected to one side of the support sleeve close to the air outlet end, a slidable ejector rod is connected to the inside of the control box, the ejector rod penetrates through the valve body, a second spring is mounted above the ejector rod, and a baffle attached to the outside of the valve body is arranged below the ejector rod;

the lower part of the valve body is connected with a pipeline, two ends of the pipeline are respectively positioned at two sides of the valve core, one end of the pipeline is positioned below the baffle, and a one-way valve with the flow direction opposite to that of the fuel gas is arranged between the other end of the pipeline and the valve body.

Preferably, an alarm is mounted on one side of the barometer, and the alarm is close to the air outlet end.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a spiral cover moves down along supporting the cover, drives the actuating lever and gets into the square groove inside, rotates the swing handle afterwards, under the drive of spiral cover, through the transmission that cooperates between actuating lever and the square groove, and then drives the case at the valve body internal rotation to whether switching on of control valve body, after loosening the swing handle moreover, under the effect of first spring, actuating lever and square groove separate once more, in order to avoid changing the on-state of gas valve between unintentionally.

(2) The utility model discloses after the inside atmospheric pressure of valve body reduced the certain degree, under the effort of second spring, drive the baffle through the ejector pin and remove to pipeline inside to make partial gas flow in the pipeline, this part gas removes in the pipeline, after through the check valve, inside discharging the valve body before the case once more, thereby form the differential acceleration, flow of the inside gas of valve body with higher speed, in order to compensate the not enough influence of atmospheric pressure.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a schematic structural view of the square groove of the present invention;

in the figure: 1-a valve body; 2-a valve core; 3-a valve stem; 4-a valve hole; 5-supporting the sleeve; 6-screwing a cover; 7-a first spring; 8-rotating the handle; 9-square groove; 10-a drive rod; 11-a control box; 12-a top rod; 13-a second spring; 14-a baffle; 15-a pipeline; 16-a one-way valve; 17-an air inlet end; 18-an air outlet end; 19-a sealing ring; 20-a barometer; 21-alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a safety gas valve comprises a valve body 1, wherein both ends of the valve body 1 are respectively provided with a gas inlet end 17 and a gas outlet end 18, a rotatable valve core 2 is arranged inside the valve body 1, a valve hole 4 is formed in the valve core 2, and the upper end of the valve core 2 is connected with a valve rod 3; the top of the valve rod 3 is provided with a square groove 9, a support sleeve 5 is arranged on the valve body 1 corresponding to the position of the valve rod 3, a rotatable screw cap 6 is sleeved outside the support sleeve 5, the screw cap 6 can slide along the support sleeve 5, and a first spring 7 is arranged between the screw cap 6 and the support sleeve 5; a rotary handle 8 is connected above the rotary cover 6, and a driving rod 10 matched with the square groove 9 is arranged in the rotary cover 6.

Specifically, the technical scheme disclosed above is utilized to control the gas delivery:

firstly, the valve body 1 is connected to a gas pipe through the gas inlet end 17, the gas outlet end 18 is connected with a gas pipe of a gas stove and other equipment, when the direction of the valve hole 4 is the same as the gas flow direction, the gas passes through the valve core 2 and is conveyed through the gas outlet end 18, when the direction of the valve hole 4 is vertical to the gas flow direction, the gas is stopped at one side of the valve core 2, the steering of the valve core 2 in the valve body 1 can be controlled through the valve rod 3, firstly, the screw cap 6 moves downwards along the support sleeve 5 to drive the drive rod 10 to enter the inside of the square groove 9, then, the screw handle 8 is rotated, the drive rod 10 is in matched transmission with the square groove 9 under the driving of the screw cap 6, the valve core 2 is further driven to rotate in the valve body 1, and after the screw handle 8 is loosened, the drive rod 10 is separated from the square groove 9 again under the action of the first spring 7;

the cross section shapes of the square groove 9 and the driving rod 10 are at least three sides, namely triangular, quadrangular, hexagonal and other cross sections can be formed according to different numbers of sides, and the cross sections are favorable for power transmission and are convenient and quick.

Further, a plurality of sealing rings 19 are disposed outside the air outlet end 18, and a thread is disposed outside the air inlet end 17. Preferably, when the air outlet end 18 is sleeved with the air conveying pipe, the sealing rings 19 with different diameters can be used for forming multi-stage sealing on the inside of the rubber pipe, so that the possibility of air leakage at the interface is reduced, and the threads on the outer parts of the two air inlet ends 17 are used for facilitating connection with the gas pipe.

Further, a barometer 20 is installed on one side of the valve body 1 adjacent to the screw cap 6, and the barometer 20 is close to the air outlet end 18. Preferably, the pressure gauge 20 can detect the pressure inside the valve body 1 in real time during the use of the fuel gas, when the valve core 2 leaks, the pressure can be observed from the pressure gauge 20, and the pressure measured by the pressure gauge 20 is the pressure after flowing through the valve core 2.

From the above, through the cooperation between the actuating lever 10 box square groove 9 in above-mentioned technical scheme with control gas and circulate or not in valve body 1 inside, further in the utility model discloses in still provide a further preferred processing structure:

a control box 11 is fixedly connected to one side of the support sleeve 5 close to the air outlet end 18, a slidable ejector rod 12 is connected to the inside of the control box 11, the ejector rod 12 penetrates through the valve body 1, a second spring 13 is installed above the ejector rod 12, and a baffle plate 14 attached to the outside of the valve body 1 is arranged below the ejector rod 12; a pipeline 15 is connected below the valve body 1, two ends of the pipeline 15 are respectively positioned at two sides of the valve core 2, one end of the pipeline 15 is positioned below the baffle 14, and a one-way valve 16 opposite to the flowing direction of the fuel gas is arranged between the other end of the pipeline and the valve body 1.

In the above further preferred process, a differential passage is formed outside the valve body 1 by connecting the two ends of the valve body 2 through the pipes 15, and the acceleration of the fuel gas is realized without increasing the power.

Specifically, after the air pressure in the valve body 1 is reduced to a certain degree, the pressure of the air pressure is not enough to support the second spring 13 to compress, then the ejector rod 12 drives the baffle plate 14 to move towards the inside of the pipeline 15, so that part of the fuel gas flows into the pipeline 15, the part of the fuel gas passes through the one-way valve 16 and then is discharged into the valve body 1 in front of the valve core 2 again, differential acceleration is formed, the flow of the fuel gas in the valve body 1 is accelerated to make up the influence of the insufficient air pressure, after the air pressure in the valve body 1 rises, the second spring 13 is compressed again, then the baffle plate 14 plugs up the hole position in the valve body 1 again, and thus the differential channel is disconnected.

In summary, further preferred structures are also provided for the specific processing structure disclosed above:

an alarm 21 is mounted on one side of the barometer 20, and the alarm 21 is located near the outlet end 18. When the inside of valve body 1 has the gas to pass through, siren 21 continuously sends ruddiness, if the gas pipe takes place ageing rupture and leads to the gas to leak and take place, must will make the gas use the tolerance of gas increase, takes place to overflow the phenomenon promptly, and siren 21 that is located on valve body 1 this moment then can frequently send alternative light to remind the user in time to detect the troubleshooting.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A safety gas valve is characterized in that: the valve comprises a valve body (1), wherein a gas inlet end (17) and a gas outlet end (18) are respectively arranged at two ends of the valve body (1), a rotatable valve core (2) is arranged inside the valve body (1), a valve hole (4) is formed in the valve core (2), and a valve rod (3) is connected to the upper end of the valve core (2);

a square groove (9) is formed in the top of the valve rod (3), a support sleeve (5) is installed on the valve body (1) corresponding to the position of the valve rod (3), a rotatable screw cap (6) is sleeved outside the support sleeve (5), the screw cap (6) can slide along the support sleeve (5), and a first spring (7) is arranged between the screw cap (6) and the support sleeve (5);

a rotary handle (8) is connected above the rotary cover (6), and a driving rod (10) matched with the square groove (9) is arranged in the rotary cover (6).

2. A safety gas valve as claimed in claim 1, wherein: a plurality of sealing rings (19) are arranged outside the air outlet end (18), and threads are arranged outside the air inlet end (17).

3. A safety gas valve as claimed in claim 1, wherein: and a barometer (20) is arranged on one side of the valve body (1) adjacent to the screw cap (6), and the barometer (20) is close to the air outlet end (18).

4. A safety gas valve as claimed in claim 1, wherein: a control box (11) is fixedly connected to one side, close to an air outlet end (18), of the support sleeve (5), a slidable ejector rod (12) is connected to the inside of the control box (11), the ejector rod (12) penetrates through the valve body (1), a second spring (13) is installed above the ejector rod (12), and a baffle (14) attached to the outside of the valve body (1) is arranged below the ejector rod (12);

the gas valve is characterized in that a pipeline (15) is connected below the valve body (1), two ends of the pipeline (15) are respectively positioned at two sides of the valve core (2), one end of the pipeline (15) is positioned below the baffle (14), and a one-way valve (16) opposite to the flowing direction of gas is arranged between the other end of the pipeline and the valve body (1).

5. A safety gas valve as claimed in claim 3, wherein: an alarm (21) is arranged on one side of the barometer (20), and the alarm (21) is close to the air outlet end (18).