Bottle gas security alarm disconnecting device
Technical field
The present invention relates to the technical field of gas-fired equipment, is especially a kind of bottle gas security alarm cut-out dress
Put.
Background technology
Bottle gas due to its portability to the life of people bring conveniently, possess substantial amounts of use at home
Family, and considerably long in the period of in will not reduce usage amount.But in recent years, the explosion fire of bottle gas
Calamity accident occurs again and again, and the security of the lives and property to people causes great harm.Trace it to its cause the old of mainly rubber tube
Change causes rupture, or rubber tube to come off, and cylinder valve or pressure regulator valve are leaked etc. caused by causing gas leak.Therefore,
Occur some leakage warning devices for being used for bottled gas in the prior art.
Such as " a kind of Intelligent gas switch " of disclosed Publication No. CN104062936A on State Intellectual Property Office website
Patent, the gas switch pass to microcontroller for sensor unit by information is gathered, and microcontroller connects alarm, motor at the same time;
Microcontroller judges flame combustion state by the switching-state information collected of sensor unit, gas concentration information, controls
Motor drives gas switch to be automatically closed and alarm.But it there are the problem of be:First, which opened in coal gas
Shut and be provided with cutting mechanism, such as control motor, sensor unit, microcontroller and timer, numerous parts to be installed in
On gas cooker switch so that the volume of gas switch becomes huge, and gas switch is provided on the table top of gas stove, because
This, occupies space more on table top, so that the inconvenience used is caused, in addition also easily by artificial destruction;Second, the device
What is closed is the gas switch on gas stove table top, and the valve for the bottle that liquefies is still in opening, that is to say, that coal gas gas
Source is still not turned off, therefore still remains security risk.
And for example on State Intellectual Property Office website disclosed Publication No. CN204301143U " coal can be automatically closed in one kind
The device of gas tank valve " patent, wherein servomotor are fixed by screws on sleeve, and pass through shaft coupling and the valve of gas tank
Door be connected, the gas outlet of gas tank is connected with pressure reducing valve, and pressure sensor is fixed on buffer pocket, the side of buffer pocket and
The gas outlet of pressure reducing valve is connected, and the opposite side of buffer pocket is connected by leather hose with gas stove, and gas stove is revolved equipped with source of the gas
Button and button.Being electrically connected by button and servomotor when it is used, to control rotating and reverse for servomotor, so as to control
The closing and unlatching of coal gas tank valve processed.But it there are the problem of be:First, servomotor is directly just installed on gas tank
Switch on, when servomotor starts, can moment swivel gas tank switch, either rotate forward or invert, all can not essence
The really rotating cycle of control gas bottle switch, in this way, excessive rotating phenomenon occurs in gas bottle switch, so as to cause gas tank
The damage of switch, causes the security incident of bigger on the contrary;Second, which is gas pressure in gas pipe, and nothing
The gas concentration of leakage of the accumulation in use environment in method monitoring daily life, therefore, when there is no gas pressure in gas pipe
Change and when gas concentration reaches dangerous degree in surrounding environment, which can not monitor and can not take cut-out
The action of gas passage.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of bottle gas security alarm disconnecting device, it
Structure it is simple, easy to operate, can carry out automatically cutting off source of the gas in the case where detecting gas leak, and send report
It is alert.
In order to solve the above technical problems, bottle gas security alarm disconnecting device provided by the invention, including adjust
Depressor, gas concentration detector and alarm, one end of the pressure regulator are connected with liquefied gas bottle, the other end by ball valve with
Gas-cooker connects, and the gas concentration detector and alarm are installed on the space wall body where liquefied gas bottle, and
Gas concentration detector is electrically connected with alarm;The device further includes gas cut off valve, and the gas cut off valve is connected to ball
The drive end of valve, and be electrically connected with alarm, gas cut off valve is electrically-controlled valve.
The gas cut off valve includes housing, motor, wiring board, upper cover, base, bottom plate, drive shaft and transmission mechanism;
The bottom plate is connected on the valve body of ball valve, and housing is in inverted U-shaped, and open end edge is connected on bottom plate, base connection
On bottom plate in housing, drive shaft turns are connected on base, and the lower end of drive shaft and the valve rod of ball valve connect, and upper end is located at
Outside base;The upper cover is connected on bottom plate and has the space of accommodating transmission mechanism, motor and wiring board between bottom plate
The top of upper cover, motor and circuit board electrical connection are both connected to, wiring board is connected with external power supply electric wire, and the output shaft of motor leads to
Transmission mechanism is crossed to be connected with drive shaft upper end.
The transmission mechanism includes driving gear, support shaft, multiple duplicate gears and driven gear, driving gear connection
On the output shaft of motor, multiple duplicate gears are socketed in support shaft, and driven gear is connected to drive shaft upper end, driving gear
It is connected by the engagement transmission of multiple duplicate gears with driven gear.
Multiple duplicate gears are four, are followed successively by since driving gear to the power transmission driven gear
First duplicate gear, the second duplicate gear, the 3rd duplicate gear and the 4th duplicate gear, support shaft are two, are respectively first
Support shaft and the second support shaft;Be connected with support plate on the base, the upper end of two support shafts be socketed in upper cover and with
Motor offsets, and through close-fitting after support plate on base, the lower end close-fitting of the second support shaft is supporting for the lower end of the first support shaft
On plate;First duplicate gear and the 3rd duplicate gear is socketed in the second support shaft, the second duplicate gear and the 4th pair
Connection gear is socketed in the first support shaft.
The support plate includes the L-shaped short slab being connected as a single entity and long slab composition, and wherein short slab is vertically arranged, lower end
It is connected on base, long slab is horizontally disposed with and above drive shaft, the lower end close-fitting of the second support shaft is on long slab.
The bottom plate includes the first bottom plate and the second bottom plate, and the first bottom plate and the second bottom plate are sequentially overlapped put from top to bottom
Put and be fixedly connected with the valve body of ball valve, housing and base are both connected on the first bottom plate.
The gas cut off valve further includes manual driving device, which includes handle, driving plate and driving lever;
The driving lever includes the horizon bar and vertical bar of L-shaped setting and connection, and one end of horizon bar and the top of drive shaft connect
And it is circumferential spacing, one end of vertical bar is connected through base with driving plate, and base position has to be lacked for the resigning of vertical bar activity
Mouthful;First bottom plate is equipped with notch, and one end of driving plate is located at the space between the second bottom plate and base of indentation, there
It is interior and be socketed with drive shaft, the other end of driving plate be located at housing it is outer and with handle rotation connection.
Closure has sealing glue, wiring board and external power supply electric wire connection point in gap between the base and housing
Housing on also closure have sealing glue.
The ball valve further includes sphere, ball seal seat and fittings body, and the lower end of valve rod is connected with sphere, and fittings body connects
It is connected on one end of valve body;Ball seal seat is two, is and sphere phase positioned at the both sides of sphere, one end of ball seal seat respectively
The sphere of the indent of cooperation, the other end are plane;One of ball seal seat close-fitting in valve body, ball seal seat one end
Sealing ring is equipped between plane and valve body;Another ball seal seat close-fitting in fittings body, put down by ball seal seat one end
Sealing ring also is provided between face and fittings body.
The pressure regulator is hermetically sealed pressure regulator.
After above structure, compared with prior art, the present invention having the following advantages that:
1) due to being mounted with gas concentration detector and alarm on the space wall body around LP gas cylinder, and
Gas stop valve is mounted with ball valve, it is therefore, automatic to send letter when the gas concentration of gas cylinder surrounding environment reaches warning value
Number gas cut off valve is given, start the valve that motor closes ball valve under the action of gas cut off valve, realized and close blast tube
Purpose, while alarm sends alarm, reminds people to fix a breakdown;In addition, gas cut off valve is connected on ball valve, it is real
On border it ball valve has been served one it is automatically controlled, therefore, it does not directly carry out on and off to the switch of gas cylinder, prevents gas cylinder
The damage of switch, more securely and reliably;
2) motor by stage-geared, makes the rotating speed that motor exports reach driving after successively decreasing step by step in gas cut off valve
Rotating speed at axis, can meet the rotating speed needed for people, make the switch control of ball valve sensitiveer and accurate;
3) manual driving device is also provided with gas cut off valve, is in order to prevent in the case of motor failure, can and
When the mode that manually drives ball valve is controlled, accordingly, it is capable to adapt to various service conditions, ensure that the peace that gas cylinder uses
Full property and reliability;
4) gap between housing and base, the gap of outlet is sealed by sealing glue on housing, make combustion
The overall tightness of gas stop valve is more preferable, ensure that its inner body avoids humid air or the corrosion of other gases, because
This ensure that the normal use of gas cut off valve, improve security;
5) end face of two ball seal seats is additionally arranged sealing ring inside ball valve, adds the leakproofness in ball valve,
It more ensure that the safety in utilization of fuel gas ball valve, further ensure the security of the present apparatus when in use.
Brief description of the drawings
Fig. 1 is the structure diagram of bottle gas security alarm disconnecting device of the present invention.
Fig. 2 is the structure diagram of gas cut off valve and ball valve in the present invention.
Fig. 3 is the enlarged structure schematic diagram of gas cut off valve internal structure in the present invention.
Fig. 4 is the structure diagram of ball valve in the present invention.
Wherein:1st, gas concentration detector;2nd, alarm;3rd, ball valve;3-1, valve body;3-2, valve rod;3-3, sphere;3-4、
Ball seal seat;3-5, fittings body;3-6, sealing ring;4th, pressure regulator;5th, gas cut off valve;6th, housing;7th, wiring board;8th, on
Lid;9th, driving lever;10th, drive shaft;11st, base;12nd, motor;13rd, the second support shaft;14th, the first support shaft;15th, driving gear;
16th, driven gear;17th, support plate;18th, glue is sealed;19th, the first bottom plate;20th, the second bottom plate;21st, notch;22nd, driving plate;
23rd, handle, the 24, first duplicate gear;25th, the second duplicate gear;26th, the 3rd duplicate gear;27th, the 4th duplicate gear.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
The structure diagram of liquefied petroleum gas security alarm disconnecting device is filled from the present invention shown in Fig. 1~Fig. 4, it
Including pressure regulator 4, gas concentration detector 1 and alarm 2, one end of the pressure regulator 4 is connected with liquefied gas bottle, the other end
It is connected by ball valve 3 with gas-cooker, the gas concentration detector 1 and alarm 2 are installed in the sky where liquefied gas bottle
Between on wall body, and gas concentration detector 1 is electrically connected with alarm 2.The device further includes gas cut off valve 5, the combustion
Gas stop valve 5 is connected to the drive end of ball valve 3, and is electrically connected with alarm 2, and gas cut off valve 5 is electrically-controlled valve.
The gas cut off valve includes housing 6, motor 12, wiring board 7, upper cover 8, base 11, bottom plate, 10 and of drive shaft
Transmission mechanism.The bottom plate is connected on the valve body 3-1 of ball valve 3, and housing 6 is in inverted U-shaped, and open end edge is connected to bottom
On plate, base 11 is connected on the bottom plate in housing 6, and drive shaft 10 is rotatablely connected on the pedestal 11, the lower end of drive shaft 10 with
The valve rod 3-2 connections of ball valve 3, upper end are located at outside base 11.The upper cover 8, which is connected on bottom plate and has between bottom plate, to be held
The space of transmission mechanism is put, motor 12 and wiring board 7 are both connected to the top of upper cover 8, and motor 12 is electrically connected with wiring board 7, line
Road plate 7 is connected with 2 electric wire of alarm, and the output shaft of motor 12 is connected by transmission mechanism with 10 upper end of drive shaft.
The transmission mechanism includes driving gear 15, support shaft, multiple duplicate gears and driven gear 16, driving gear
15 are connected on the output shaft of motor 12, and multiple duplicate gears are socketed in support shaft, and driven gear 16 is connected to drive shaft 10
Upper end, driving gear 15 are connected by the engagement transmission of multiple duplicate gears with driven gear 16.
Multiple duplicate gears be four, since driving gear 15 to the power transmission driven gear 16 according to
Secondary is the first duplicate gear 24, the second duplicate gear 25, the 3rd duplicate gear 26 and the 4th duplicate gear 27, support shaft two
Root, is respectively the first support shaft 14 and the second support shaft 13.It is connected with support plate 17 on the base 11, two support shafts
Upper end is socketed in upper cover 8 and offsets with motor 12, and close-fitting is in base 11 after the lower end of the first support shaft 14 passes through support plate 17
On, the lower end close-fitting of the second support shaft 13 is in support plate 17.26 sets of first duplicate gear 24 and the 3rd duplicate gear
It is connected in the second support shaft 13, the second duplicate gear 25 and the 4th duplicate gear 27 are socketed in the first support shaft 14.
The support plate 17 includes the L-shaped short slab being connected as a single entity and long slab composition, and wherein short slab is vertically arranged, under
On the pedestal 11, long slab is horizontally disposed with and positioned at the top of drive shaft 10, the lower end close-fitting of the second support shaft 13 is in long slab for end connection
On.
The bottom plate includes the first bottom plate 19 and the second bottom plate 20, the first bottom plate 19 and the second bottom plate 20 from top to bottom according to
Secondary superposition is placed and is fixedly connected with the valve body 3-1 of ball valve 3, and housing 6 and base 11 are both connected on the first bottom plate 19.
The gas cut off valve further includes manual driving device, which includes handle 23,22 and of driving plate
Driving lever 9.The driving lever 9 includes the horizon bar and vertical bar of L-shaped setting and connection, one end and the drive shaft 10 of horizon bar
Top connection is simultaneously circumferential spacing, and one end of vertical bar is connected through base 11 with driving plate 22, is had at base 11 for vertical
The resigning breach of bar activity.First bottom plate 19 is equipped with notch 21, and one end of driving plate 22 is located at notch 21
Be socketed in space between two bottom plates 20 and base 11 and with drive shaft 10, the other end of driving plate 22 be located at housing 6 it is outer and with
Handle 23 is rotatablely connected.
Closure has sealing glue 18, wiring board 7 and external power supply electric wire in gap between the base 11 and housing 6
Also closure has sealing glue 18 on the housing 6 of junction.
The ball valve 3 further includes sphere 3-3, ball seal seat 3-4 and fittings body 3-5, the lower end of valve rod 3-2 and sphere
3-3 connections, fittings body 3-5 are connected to one end of valve body 3-1.Ball seal seat 3-4 is two, respectively positioned at the two of sphere 3-3
Side, one end of ball seal seat 3-4 is the sphere with the matched indents of sphere 3-3, and the other end is plane.One of sphere
Seal receptacle 3-4 close-fittings are equipped with sealing ring 3-6 in valve body 3-1 between the plane and valve body 3-1 of ball seal seat 3-4 one end.Separately
Outer ball seal seat 3-4 close-fittings are in fittings body 3-5, between the plane and fittings body 3-5 of ball seal seat 3-4 one end
Equipped with sealing ring 3-6.
The pressure regulator 4 is hermetically sealed pressure regulator.
The course of work of the present invention is as follows:Under normal use, motor 12 is started, motor output shaft drives actively successively
Gear 15, the first duplicate gear 24, the second duplicate gear 25, the 3rd duplicate gear 26, the 4th duplicate gear 27 and driven gear
After 16, driving drive shaft 10 rotates, and the rotation of sphere 3-3 in ball valve 3 is driven, so as to fulfill the opening and closing of ball valve 3.Work as combustion
When gas concentration detector 1 detects warning value, aut sign is opened to gas cut off valve 5 under the action of gas cut off valve 5
Dynamic motor 12 closes the valve of ball valve 3, realizes the purpose for closing blast tube, while alarm 2 sends alarm, reminds people to come
Fix a breakdown.Just in case after motor failure, can manually driving device, that is, stir handle 23, make to be connected in driving plate 22
Driving lever 9 swing, manual actuation drive shaft 10 rotates, closing and opening so as to fulfill ball valve 3.
The above, is only preferably feasible implementation example of the invention, it is impossible to therefore limit to the interest field of the present invention,
For those skilled in the art, it is all made with technical scheme and technical concept other are various corresponding
Change should all belong within the protection domain of the claims in the present invention.