CN111059317A

CN111059317A - Self-locking gas valve

Info

Publication number: CN111059317A
Application number: CN202010038853.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Fuzhou Cangshan Weichao Commodity Co ltd
Current assignee: Ningbo Zhiqing Intelligent Control Technology Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-04-24
Anticipated expiration: 2040-01-14
Also published as: CN111059317B

Abstract

The invention discloses a self-locking gas valve which comprises a valve body, wherein a pipe wall which is communicated from left to right is fixedly arranged inside the valve body, a right air duct extending rightwards and a left air duct extending leftwards are fixedly arranged inside the pipe wall, a ball valve which is positioned in the middle of the right air duct and the left air duct is fixedly arranged inside the pipe wall, an upper cavity which is positioned on the upper side end face of the pipe wall is arranged inside the valve body, a lower cavity which is positioned on the lower side end face of the pipe wall is arranged inside the valve body, a manual control device is arranged inside the upper cavity, and an electric control device is arranged inside the lower cavity. The invention has simple structure and convenient use, realizes manual and electric control of the valve, has a self-locking device, ensures that the valve cannot be easily opened after being closed, increases the safety and reliability of the valve, can detect the concentration of fuel gas in the air, can be automatically closed, is beneficial to troubleshooting, and plays an important role in the safety production of the fuel gas industry.

Description

Self-locking gas valve

Technical Field

The invention relates to the technical field of valves, in particular to a self-locking gas valve.

Background

The valve is a device for controlling flow on a pipeline, and is various, in recent years, in order to increase the safety of the valve, novel valves such as a self-locking valve and an automatic detection valve are appeared, but the traditional self-locking valve is usually locked by using a single self-locking device, the self-locking effect is poor, the self-locked valve can be manually opened at will and loses the self-locking significance, the automatic detection valve can be automatically closed when gas leakage occurs, but the detection device can automatically open the valve when detecting that the gas concentration is reduced and does not represent that the fault is completely eliminated, the valve is still dangerous when being opened, the most reliable method is to manually open the valve after manually determining that the fault is eliminated, so that the valve with self-locking and detection functions needs to be designed to realize that the valve can be automatically closed and cannot be automatically opened after detecting the fault, and the self-locking device needs to be opened by a key, so that the valve cannot be opened manually after being closed.

Disclosure of Invention

The invention aims to provide a self-locking gas valve which is used for overcoming the defects in the prior art.

The self-locking gas valve comprises a valve body, wherein a left-right through pipe wall is fixedly arranged inside the valve body, a right air duct extending rightwards and a left air duct extending leftwards are fixedly arranged inside the pipe wall, a ball valve positioned in the middle of the right air duct and the left air duct is fixedly arranged inside the pipe wall, a communicating air duct is fixedly arranged inside the ball valve, a group of sealing blocks in sliding connection with the outer side end face of the ball valve are fixedly arranged on the upper top wall and the lower bottom wall of the right air duct and the communicating air duct, an upper cavity positioned on the upper side end face of the pipe wall is arranged inside the valve body, a lower cavity positioned on the lower side end face of the pipe wall is arranged inside the valve body, a detection cavity is fixedly arranged on the inner wall of the left side of the lower cavity, a manual control device is arranged inside the upper cavity, and an electric control, a detection control device is arranged in the detection cavity;

the manual control device comprises a first shaft which is fixedly arranged on the upper side end face of the ball valve and penetrates through the upper top wall of the upper cavity and extends upwards, a handle is fixedly arranged at the tail end of the upper side of the first shaft, a first rod which extends forwards is fixedly arranged on the front side end face of the first shaft, a limiting rod which is positioned on the right side of the first rod and extends upwards is fixedly arranged on the lower bottom wall of the upper cavity, a first slide way is fixedly arranged on the lower bottom wall of the upper cavity, a first slide block is slidably connected with the upper side end face of the first slide way, a lock block is fixedly arranged on the upper side end face of the first slide block, the tail end of the right side of the lock block is in an inclined plane shape, a second rod which extends upwards is fixedly arranged on the upper side end face of the lock block, and a first spring is fixedly arranged between;

on the basis of the technical scheme, a key hole extending backwards is fixedly formed in the inner wall of the front side of the upper cavity, a second shaft extending forwards is rotatably arranged on the inner wall of the rear side of the upper cavity, a rotating block is fixedly arranged at the tail end of the front side of the second shaft, a square hole is fixedly formed in the end face of the front side of the rotating block, a third rod which is located on the right side of the second rod and extends downwards is fixedly arranged on the end face of the lower side of the rotating block, a second slide way extending forwards is fixedly arranged on the inner wall of the rear side of the upper cavity, a second slide block is slidably arranged in the second slide way, and a second spring is fixedly arranged between the end face of the rear side of the second slide block and the lower bottom;

on the basis of the technical scheme, the electric control device comprises a small motor fixedly arranged on the lower bottom wall of the lower cavity, the upper side end face of the small motor is rotatably provided with a third shaft which extends upwards and is fixedly arranged on the lower side end face of the ball valve, the rear side end face of the third shaft is fixedly provided with a first clamping groove, the left side end face of the third shaft is fixedly provided with a fourth rod which extends leftwards, the rear side end face of the fourth rod is fixedly provided with a first pressing block which extends backwards, the lower bottom wall of the lower cavity is fixedly provided with a cushion block, the upper side end face of the cushion block is fixedly provided with a connecting rod box, the inside of the connecting rod box is fixedly provided with a first block, the right side end face of the first block is fixedly provided with a connecting rod cavity, the rear side of the first block is movably provided with a fifth rod which extends leftwards and rightwards, the left end of the fifth rod is fixedly provided with a second pressing block, the right, the tail end of the upper side of the first rotating shaft is fixedly provided with a sixth rod, the lower bottom wall of the connecting rod cavity is rotatably provided with a second rotating shaft extending upwards, a torsion spring is fixedly arranged in the second rotating shaft, the middle of the sixth rod is fixedly arranged at the tail end of the upper side of the second rotating shaft, the tail end of the front side of the sixth rod is rotatably provided with a third rotating shaft, the third rotating shaft is fixedly provided with a seventh rod extending leftwards, an eighth rod extending leftwards is slidably arranged in the seventh rod, the eighth rod is connected with the seventh rod through a connecting spring, and the seventh rod and the eighth rod are slidably arranged in the first block;

on the basis of the technical scheme, a second clamping groove is fixedly formed in the lower side end face of the fifth rod, an electromagnet box located on the front side of the fifth rod is fixedly arranged in the first block, an electromagnet cavity is fixedly arranged in the electromagnet box, an electromagnet is fixedly arranged between the inner walls of the left side and the right side of the electromagnet cavity, a first sliding groove located on the front side of the electromagnet is fixedly arranged on the inner walls of the left side and the right side of the electromagnet cavity, a third sliding block is slidably arranged in the first sliding groove, an eighth rod which extends backwards and penetrates through the electromagnet is fixedly arranged on the rear side end face of the third sliding block, the eighth rod is slidably connected with the electromagnet, a third spring is fixedly arranged between the rear side end face of the third sliding block and the front side end face of the electromagnet, a clamping block is fixedly arranged at the tail end of the rear side of the electromagnet, and the clamping block can be;

on the basis of the technical scheme, the detection control device comprises a battery fixedly arranged in the detection cavity, an air-sensitive switch is fixedly arranged on the end face of the upper side of the battery, an air inlet hole is fixedly arranged on the inner wall of the left side of the detection cavity, a lamp switch is fixedly arranged on the end face of the right side of the connecting rod box, a cold light lamp is fixedly arranged on the end face of the front side, the battery is electrically connected with the air-sensitive switch, the small motor, the cold light lamp and the electromagnet, the air-sensitive switch is electrically connected with the small motor and the electromagnet, and the lamp switch is electrically connected with the cold light lamp;

the invention has the beneficial effects that: the invention has simple structure and convenient use, realizes manual and electric control of the valve, has a self-locking device, ensures that the valve cannot be easily opened after being closed, increases the safety and reliability of the valve, can detect the concentration of fuel gas in the air, can be automatically closed, is beneficial to troubleshooting, and plays an important role in the safety production of the fuel gas industry.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a self-locking gas valve of the present invention;

FIG. 2 is a schematic view of the structure at A-A in FIG. 1;

FIG. 3 is a schematic view of the structure at B-B in FIG. 1;

fig. 4 is a schematic diagram of the structure at C in fig. 3.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1 to 4, a self-locking gas valve according to an embodiment of the present invention includes a valve body 10, a left-right through pipe wall 12 is fixedly disposed inside the valve body 10, a right air duct 13 extending rightward and a left air duct 26 extending leftward are fixedly disposed inside the pipe wall 12, a ball valve 25 positioned in the middle of the right air duct 13 and the left air duct 26 is fixedly disposed inside the pipe wall 12, a communicating air duct 14 is fixedly disposed inside the ball valve 25, a set of sealing blocks 24 slidably connected to an outer end surface of the ball valve 25 is fixedly disposed on an upper top wall and a lower bottom wall of the right air duct 13 and the communicating air duct 14, an upper cavity 63 positioned on an upper end surface of the pipe wall 12 is disposed inside the valve body 10, a lower cavity 64 positioned on a lower end surface of the pipe wall 12 is disposed inside the valve body 10, a detection cavity 23 is fixedly disposed on a left inner wall of the lower cavity 64, a manual control device is arranged in the upper cavity 63, an electric control device is arranged in the lower cavity 64, and a detection control device is arranged in the detection cavity 23;

the manual control device comprises a first shaft 33 fixedly arranged on the upper end face of the ball valve 25, penetrating through the upper top wall of the upper cavity 63 and extending upwards, a handle 34 is fixedly arranged at the tail end of the upper side of the first shaft 33, a first rod 32 extending forwards is fixedly arranged on the front end face of the first shaft 33, a limiting rod 44 located on the right side of the first rod 32 and extending upwards is fixedly arranged on the lower bottom wall of the upper cavity 63, a first slide 28 is fixedly arranged on the lower bottom wall of the upper cavity 63, a first slide 27 is slidably connected with the upper end face of the first slide 28, a lock block 31 is fixedly arranged on the upper end face of the first slide 27, the tail end of the right side of the lock block 31 is in an inclined plane shape, a second rod 29 extending upwards is fixedly arranged on the upper end face of the lock block 31, and a first spring 47 is fixedly arranged between the left end face of the lock block 31 and the left;

in addition, in one embodiment, a key hole 45 extending backwards is fixedly arranged on the inner wall of the front side of the upper cavity 63, a second shaft 49 extending forwards is rotatably arranged on the inner wall of the rear side of the upper cavity 63, a rotating block 48 is fixedly arranged at the tail end of the front side of the second shaft 49, a square hole 46 is fixedly arranged on the end face of the front side of the rotating block 48, a third rod 30 located on the right side of the second rod 29 and extending downwards is fixedly arranged on the end face of the lower side of the rotating block 48, a second slide way 52 extending forwards is fixedly arranged on the inner wall of the rear side of the upper cavity 63, a second slide block 50 is slidably arranged inside the second slide way 52, and a second spring 51 is fixedly arranged between the end face of the rear side of the second slide block 50 and the lower bottom wall of the second;

in addition, in one embodiment, the electric control device comprises a small motor 17 fixedly arranged on the lower bottom wall of the lower cavity 64, the upper side end face of the small motor 17 is rotatably provided with a third shaft 18 extending upwards and fixedly arranged on the lower side end face of the ball valve 25, the rear side end face of the third shaft 18 is fixedly provided with a first clamping groove 35, the left side end face of the third shaft 18 is fixedly provided with a fourth rod 19 extending leftwards, the rear side end face of the fourth rod 19 is fixedly provided with a first pressing block 66 extending backwards, the lower bottom wall of the lower cavity 64 is fixedly provided with a cushion block 16, the upper side end face of the cushion block 16 is fixedly provided with a connecting rod box 15, the inside of the connecting rod box 15 is fixedly provided with a first pressing block 65, the right side end face of the first pressing block 65 is fixedly provided with a connecting rod cavity 40, the rear side of the first pressing block 65 is movably provided with a fifth rod 37 extending leftwards and rightwards, the right end of the fifth rod 37 is located in the connecting rod cavity 40 and is rotatably provided with a first rotating shaft 38 extending upwards, the upper end of the first rotating shaft 38 is fixedly provided with a sixth rod 39, the lower bottom wall of the connecting rod cavity 40 is rotatably provided with a second rotating shaft 41 extending upwards, a torsion spring is fixedly arranged in the second rotating shaft 41, the middle of the sixth rod 39 is fixedly arranged at the upper end of the second rotating shaft 41, the front end of the sixth rod 39 is rotatably provided with a third rotating shaft 42, the third rotating shaft 42 is fixedly provided with a seventh rod 43 extending leftwards, an eighth rod 67 extending leftwards is slidably arranged in the seventh rod, the eighth rod 67 is connected with the seventh rod 43 through a connecting spring 68, and the seventh rod 43 and the eighth rod 67 are slidably arranged in the first block 65;

in addition, in one embodiment, a second engaging groove 62 is fixedly arranged on the lower end surface of the fifth rod 37, an electromagnet box 56 positioned on the front side of the fifth rod 37 is fixedly arranged inside the first block 65, an electromagnet cavity 57 is fixedly arranged inside the electromagnet box 56, an electromagnet 60 is fixedly arranged between the inner walls of the left side and the right side of the electromagnet cavity 57, a first sliding groove 59 positioned on the front side of the electromagnet 60 is fixedly arranged on the inner walls of the left side and the right side of the electromagnet cavity 57, a third sliding block 55 is slidably arranged in the first sliding groove 59, an eighth rod 58 extending backwards and penetrating through the electromagnet 60 is fixedly arranged on the rear end surface of the third sliding block 55, the eighth rod 58 is slidably connected with the electromagnet 60, a third spring 54 is fixedly arranged between the rear end surface of the third sliding block 55 and the front end surface of the electromagnet 60, a second engaging groove 61 is fixedly arranged at the rear end of the electromagnet 60, the fixture block 61 can be in sliding fit with the second fixture groove 62;

in addition, in an embodiment, the detection control device includes a battery 20 fixedly disposed in the detection chamber 23, an upper side end face of the battery 20 is fixedly provided with a gas sensitive switch 21, a left side inner wall of the detection chamber 23 is fixedly provided with an air inlet 22, a right side end face of the connecting rod box 15 is fixedly provided with a lamp switch 53, a front side end face of the detection device 10 is fixedly provided with a cold light lamp 11, the battery 20 is electrically connected with the gas sensitive switch 21, the small motor 17, the cold light lamp 11 and the electromagnet 60, the gas sensitive switch 21 is electrically connected with the small motor 17 and the electromagnet 60, and the lamp switch 53 is electrically connected with the cold light lamp 11.

In an initial state, the right air duct 13 is communicated with the left air duct 26 through the communicating air duct 14, the first spring 47 is in a semi-compression state, the first sliding block 27 and the locking block 31 are located at the right end of the first sliding way 28, the second spring 51 is in a relaxed state, the electromagnet 60 is powered off, the electromagnet 60 is in a relaxed state, and the cold light lamp 11 is in an extinguished state.

When the gas-sensitive switch 21 detects that gas leaks and the gas concentration exceeds the standard, the small-sized motor 17 is started, the third shaft 18 rotates and drives the fourth rod 19, the pressing block 66 and the ball valve 25 to rotate, the right air duct 13 is not communicated with the left air duct 26, the pressing block 66 presses the second pressing block 36, the second pressing block 36 drives the fifth rod 37 to move backwards, the fifth rod 37 drives the sixth rod 39 to rotate, the sixth rod 39 drives the pressing block 43 to move leftwards, the left end of the pressing block 43 slides into the first clamping groove 35, meanwhile, the electromagnet 60 is electrified and magnetized, the third sliding block 55 is attracted and moves upwards, the third spring 54 compresses, the eighth rod 58 and the clamping block 61 move upwards, the clamping block 61 slides into the second clamping groove 62 to lock the fifth rod 37, and meanwhile, the whole electric control device is locked.

Work as No. three the axle 18 drives ball valve 25 rotates, or rotates handle 34, a shaft 33 drives ball valve 25 rotates, a pole 32 rotate and with the terminal inclined plane contact in locking piece 31 right side, locking piece 31 rearward movement, a spring 47 compression, a pole 32 continue to rotate and with No. two sliders 50 contact, No. two sliders 50 rearward movement, No. two springs 51 are compressed, work as a pole 32 has rotated behind the position that locking piece 31 was located, a spring 47 will relax, locking piece 31 moves right, blocks and is in a pole 32 front side reaches the dead effect of lock.

After the fault is eliminated, the gas concentration is reduced, the electromagnet 60 is powered off, the third spring 54 is loosened, the fifth rod 37 is not locked any more, but the whole device still cannot be reset at the moment, a matched key is required to be inserted into the square hole 46 through the key hole 45, the key is rotated, the square hole 46 rotates and drives the third rod 30 to rotate, the third rod 30 contacts the second rod 29 and drives the second rod 29 and the lock block 31 to move leftwards, meanwhile, the first rod 32 is not limited any more, the second spring 51 is loosened, the second sliding block 50 moves forwards and drives the first rod 32 to move forwards, the first rod 32 moves to the front side of the lock block 31 and is not limited any more, the handle 34 is rotated at the moment, the valve can be reset integrally, and the principle of manually switching the valve is the same as the principle.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a auto-lock gas valve, includes the valve body, its characterized in that: a left-right through pipe wall is fixedly arranged inside the valve body, a right air duct extending rightwards and a left air duct extending leftwards are fixedly arranged inside the pipe wall, a ball valve located in the middle of the right air duct and the left air duct is fixedly arranged inside the pipe wall, a communicated air duct is fixedly arranged inside the ball valve, a group of sealing blocks in sliding connection with the outer end face of the ball valve are fixedly arranged on the upper top wall and the lower bottom wall of the right air duct and the communicated air duct, an upper cavity located on the upper end face of the pipe wall is arranged inside the valve body, a lower cavity located on the lower end face of the pipe wall is arranged inside the valve body, a detection cavity is fixedly arranged on the inner wall of the left side of the lower cavity, a manual control device is arranged inside the upper cavity, an electric control device is arranged inside the lower cavity, and a detection control;

hand control device locates including fixed ball valve upside terminal surface just passes go up the cavity and go up a roof and a shaft of upwards extending, the terminal fixed handle that is equipped with of a side of epaxial side, a fixed pole that is equipped with forward extension of axle front end face, the fixed restriction pole that is equipped with of diapire under the cavity is gone up and is located a pole right side and upwards extending, the fixed slide that is equipped with of diapire under the cavity, slide upside terminal surface sliding connection is equipped with the slider No. one, the fixed locking piece that is equipped with of slider upside terminal surface, the terminal inclined plane form that is in locking piece right side, the fixed No. two poles that are equipped with upwards extending of locking piece upside terminal surface, locking piece left side terminal surface with go up the fixed spring that is equipped with between the cavity left side inner wall.

2. The self-locking gas valve of claim 1, wherein: the fixed keyhole that is equipped with backward extension of upper chamber front side inner wall, upper chamber rear side inner wall rotates and is equipped with the No. two axles that extend forward, No. two axle front side end fixes and is equipped with rotatory piece, the fixed quad slit that is equipped with on the rotatory piece front side end face, rotatory piece downside terminal surface is fixed to be equipped with and is located No. two pole right sides and downwardly extending's No. three poles, the fixed slide that extends forward that is equipped with of upper chamber rear side inner wall, No. two inside slides of slide are equipped with No. two sliders, No. two slider rear side end faces with fixed No. two springs that are equipped with between the diapire under No. two slides.

3. The self-locking gas valve of claim 1, wherein: the electric control device comprises a small motor fixedly arranged on the lower bottom wall of the lower cavity, the upper side end face of the small motor is rotatably provided with a third shaft which extends upwards and is fixedly arranged on the lower side end face of the ball valve, the rear side end face of the third shaft is fixedly provided with a first clamping groove, the left side end face of the third shaft is fixedly provided with a fourth rod which extends leftwards, the rear side end face of the fourth rod is fixedly provided with a first pressing block which extends backwards, the lower bottom wall of the lower cavity is fixedly provided with a cushion block, the upper side end face of the cushion block is fixedly provided with a connecting rod box, the inside of the connecting rod box is fixedly provided with a first block, the right side end face of the first block is fixedly provided with a connecting rod cavity, the rear side of the first block is slidably provided with a fifth rod which extends leftwards and rightwards, the left end of the fifth rod is fixedly provided with a second pressing block, the right end, a pivot upside end is fixed and is equipped with No. six poles, the diapire rotates and is equipped with the pivot No. two that upwards extend under the connecting rod chamber, the fixed torsional spring that is equipped with in the pivot No. two, No. six pole middle parts are fixed to be located No. two pivot upside ends, No. six pole front side end rotates and is equipped with the pivot No. three, fixed No. seven poles that extend left that are equipped with in the pivot No. three, seven pole inside slides and is equipped with the No. eight pole that extends left, No. eight pole with No. seven poles pass through coupling spring and link to each other, No. seven poles with No. eight pole slides and locates in the piece No. one.

4. The self-locking gas valve of claim 1, wherein: the fixed draw-in groove No. two that is equipped with of No. five pole downside end faces, a piece internal fixation is equipped with and is located the electromagnetic box of No. five pole front sides, the inside fixed electro-magnet chamber that is equipped with of electromagnetic box, the fixed electro-magnet that is equipped with between the electro-magnet chamber left and right sides inner wall, fixed being equipped with on the electro-magnet chamber left and right sides inner wall is located the spout of electro-magnet front side, it is equipped with No. three sliders to slide in the spout, No. three slider rear end face is fixed to be equipped with backward extension and passes No. eight poles of electro-magnet, No. eight poles with electro-magnet sliding connection, No. three slider rear end face with fixed No. three springs that are equipped with between the electro-magnet front end face, the terminal fixed fixture block that is equipped with of electro-magnet rear side, the fixture block can.

5. The self-locking gas valve of claim 1, wherein: the detection control device is including fixed locating detect the battery in the chamber, the fixed gas sensitive switch that is equipped with of side end face on the battery, detect the fixed inlet port that is equipped with of chamber left side inner wall, the fixed lamp switch that is equipped with of connecting rod case right side end face, the fixed cold light lamp that is equipped with of front end face, the battery with gas sensitive switch with the small-size motor with the cold light lamp and the electro-magnet electricity federation, gas sensitive switch with the small-size motor and the electro-magnet electricity federation, the lamp switch with the cold light lamp electricity federation.