阅读说明：本技术 一种天然气管道专用入户阀门 (Special valve of registering one's residence of natural gas line ) 是由 李箐 于 2019-11-05 设计创作，主要内容包括：本发明涉及天然气应用领域,尤其是一种天然气管道专用入户阀门,包括机身以及设置于所述机身内的传动腔,所述传动腔前后两侧对称设置有滑动腔,所述滑动腔内可滑动的设置有滑动块,所述滑动块内转动的设置有螺纹套,所述螺纹套在所述滑动块内设置管道连接装置作用下边转动边移动,从而带动所述螺纹套内设置的螺纹孔与燃气管道上下两侧螺纹连接,从而将所述螺纹孔内螺纹连接的螺纹杆内的通气管连通的燃气管道内,本发明提供的一种天然气管道专用入户阀门,能够方便的实现燃气的接入,而且本发明的设备拆卸方便便于更换维护,设备内设置有燃气泄漏检测仪,能够有效防止燃气的泄漏,同时设备能够在欠费时自动停气,十分便捷,更加可靠。(The invention relates to the field of natural gas application, in particular to a special service valve for a natural gas pipeline, which comprises a machine body and a transmission cavity arranged in the machine body, wherein sliding cavities are symmetrically arranged at the front side and the rear side of the transmission cavity, sliding blocks are arranged in the sliding cavities in a sliding way, a threaded sleeve is arranged in the sliding blocks in a rotating way, and the threaded sleeve moves under the action of a pipeline connecting device arranged in the sliding blocks while rotating, so that a threaded hole arranged in the threaded sleeve is driven to be in threaded connection with the upper side and the lower side of a gas pipeline, and a vent pipe in a threaded rod connected with the threads in the threaded hole is communicated with the gas pipeline. The gas leakage can be effectively prevented, and meanwhile, the gas can be automatically stopped when the gas is not consumed, so that the gas leakage prevention device is very convenient and reliable.)

1. The utility model provides a special valve of registering one's residence of natural gas line, includes the fuselage and set up in transmission chamber in the fuselage, its characterized in that: the front side and the rear side of the transmission cavity are symmetrically provided with sliding cavities, sliding blocks are arranged in the sliding cavities in a sliding mode, thread sleeves are arranged in the sliding blocks in a rotating mode, the thread sleeves are arranged in the sliding blocks and move under the action of a pipeline connecting device, so that thread holes arranged in the thread sleeves are driven to be in threaded connection with the upper side and the lower side of a gas pipeline, and therefore the gas pipeline communicated with a vent pipe in a threaded rod in threaded connection with the thread holes is arranged in each thread sleeve, an outlet pipe communicated with the vent pipe is arranged in the right side end wall of the machine body, a flow meter used for monitoring gas flow is arranged in the inner fixing device, a quick pipe joint communicated with the outlet pipe is fixedly arranged on the right side end wall of the machine body, an indoor gas hose, a rotating cavity communicated with the gas outlet pipe is arranged in the bottom wall of the power cavity, a first rotating shaft is rotatably arranged between the rotating cavity and the power cavity, a rotating ball is rotatably arranged at the tail end of the first rotating shaft in the rotating cavity, a first gear is fixedly arranged at the tail end of the first rotating shaft in the power cavity, a torsion spring is arranged between the first rotating shaft and the bottom wall of the power cavity, a through hole which is communicated with the front and the back is arranged in the rotating ball, the rotating ball can drive the through hole to communicate the gas outlet pipes at the left side and the right side of the rotating cavity by rotating a quarter of the circumference, a first sliding chute with a right opening is arranged in the end wall at the right side of the machine body, a first sliding plate is slidably arranged in the first sliding chute, a clamping groove for placing a gas payment card is rightwards arranged in the opening of the first sliding plate, and a payment module which is arranged in, the first sliding plate is pushed leftwards, a power device arranged in the top wall of the power cavity can be driven to switch between the pipe connecting device and the rotating power of the rotating ball, a second sliding groove penetrating through the air outlet pipe is arranged in the end wall of the air outlet pipe, a second sliding plate is arranged in the second sliding groove in a sliding mode, a first spring is arranged between the second sliding plate and the top wall of the second sliding groove, and when the first sliding plate moves leftwards, the second sliding plate moves upwards to drive communicating holes which are arranged in the second sliding plate and run through left and right to communicate the air outlet pipes on two sides of the second sliding groove.

2. The valve as claimed in claim 1, wherein: the gas detection device is characterized in that a circular cavity communicated with the outlet pipe and the external space is arranged in the end wall of the right side of the second sliding groove, a second rotating shaft is rotatably arranged between the circular cavity and the second sliding groove, a second gear meshed with a first rack fixedly arranged on the bottom wall of the second sliding plate is fixedly arranged at the tail end of the second rotating shaft in the second sliding groove, the tail end of the second rotating shaft in the circular cavity is fixedly connected with a rotating disc rotatably arranged in the circular cavity, and a gas detection sensor is fixedly arranged on the upper end wall of the rotating disc.

3. The valve as claimed in claim 1, wherein: the connecting device comprises a gear cavity arranged in the sliding block, a spline housing is rotatably arranged in the gear cavity, a fourth gear meshed with a third gear fixedly arranged on the outer surface of the thread housing is fixedly arranged on the outer surface of the spline housing, a spline hole which is communicated up and down is arranged in the spline housing, a spline shaft which extends up and down is connected in the spline hole through splines, a first bevel gear is fixedly arranged on the outer surface of the spline shaft in the transmission cavity, a third rotating shaft is rotatably arranged between the transmission cavity and the power cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged at the tail end of the third rotating shaft in the transmission cavity, and a fifth gear is fixedly arranged at the tail end of the third rotating shaft in the power cavity.

4. The valve as claimed in claim 1, wherein: the power device comprises a third sliding groove with a downward opening, which is arranged in the top wall of the power cavity, a fixing frame is arranged in the third sliding groove in a sliding manner, a driving motor is fixedly arranged in the bottom wall of the fixing frame, the tail end of an output shaft of the driving motor is fixedly provided with a sixth gear meshed with the fifth gear, a fourth sliding groove which runs through the second sliding groove is arranged in the end wall of the right side of the third sliding groove, a second rack which is fixedly connected with the fixing frame is arranged in the fourth sliding groove in a sliding manner, a second spring is arranged between the fixing frame and the end wall of the right side of the third sliding groove, and when the second rack moves to the right, a first inclined hole which is through from left to right and is arranged in the second sliding plate is pushed, so that the first inclined hole is.

5. The valve as claimed in claim 1, wherein: first spout with the intercommunication is provided with the cavity between the fourth sliding tray, rotatable be provided with in the cavity with the second rack and the seventh gear of third rack toothing that first sliding plate diapire set up, the outside logical groove of intercommunication that sets up in the draw-in groove roof, first sliding plate moves to the left the drive lead to the left move with when deducting the module and lining up, it can respond to the gas of placing in the draw-in groove and collect fee the card to the gas and collect fee the card and deduct fee.

6. The valve as claimed in claim 1, wherein: a first sliding chute with a downward opening is arranged in the top wall of the first sliding chute, a locking rod matched with a locking groove arranged in the top wall of the first sliding plate is arranged in the first sliding chute in a sliding manner, a second inclined hole which is communicated with the left and the right is arranged in the locking rod, a third spring is arranged between the locking rod and the top wall of the first sliding hole, a first electromagnet matched with the locking rod is fixedly arranged in the top wall of the first sliding hole, a second sliding hole penetrating through the first sliding hole is arranged in the second sliding hole, a magnetic attraction rod is arranged in the second sliding hole in a sliding way, a second electromagnet matched with the magnetic attraction rod is fixedly arranged in the left end wall of the second sliding hole, the gas detection device is characterized in that a button for controlling the rotation of the fixing frame is arranged on the top wall of the machine body, and a warning lamp electrically connected with the gas detection sensor is arranged on the left side of the button.

Technical Field

The invention relates to the field of natural gas application, in particular to a special valve for a natural gas pipeline.

Background

In the process of connecting gas to a home, the traditional home valve has many problems of difficult connection and inconvenient maintenance, gas can not be automatically stopped when gas leaks, and warning can not be easily given out when an accident happens, so that the life safety of indoor personnel is threatened, and therefore, the problem needs to be improved by arranging the special home valve for the natural gas pipeline.

Disclosure of Invention

The invention aims to provide a special service valve for a natural gas pipeline, which can overcome the defects in the prior art, thereby improving the practicability of equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a special service valve for a natural gas pipeline, which comprises a machine body and a transmission cavity arranged in the machine body, wherein sliding cavities are symmetrically arranged at the front side and the rear side of the transmission cavity, sliding blocks are arranged in the sliding cavities in a sliding mode, threaded sleeves are arranged in the sliding blocks in a rotating mode, the threaded sleeves are sleeved with pipelines arranged in the sliding blocks, the lower sides of the threaded sleeves are driven to rotate and move under the action of pipeline connecting devices arranged in the sliding blocks, so that threaded holes arranged in the threaded sleeves are driven to be in threaded connection with the upper sides and the lower sides of a gas pipeline, the gas pipeline is communicated with vent pipes in threaded rods connected with the threaded holes in a threaded manner, an air outlet pipe communicated with the vent pipes is arranged in the right side end wall of the machine body in a rightward, the quick pipe joint is utilized to easily connect an indoor gas hose into equipment, a power cavity is arranged in the top wall of the transmission cavity, a rotating cavity communicated with the gas outlet pipe is arranged in the bottom wall of the power cavity, a first rotating shaft is rotatably arranged between the rotating cavity and the power cavity, a rotating ball is rotatably arranged at the tail end of the first rotating shaft in the rotating cavity, a first gear is fixedly arranged at the tail end of the first rotating shaft in the power cavity, a torsion spring is arranged between the first rotating shaft and the bottom wall of the power cavity, a through hole which is communicated from front to back is arranged in the rotating ball, the rotating ball can drive the through hole to communicate the gas outlet pipes on the left side and the right side of the rotating cavity by rotating a quarter of the circumference, a first sliding chute with an opening towards the right side is arranged in the end wall of the right side, the gas collecting device is characterized in that a clamping groove used for placing a gas payment card is arranged rightwards in an opening in the first sliding plate, a fee deducting module used for sensing the fee deducting gas payment card and arranged in the top wall of the first sliding groove is used for pushing the first sliding plate leftwards to drive a power device arranged in the top wall of the power cavity to switch between the connecting pipe device and the rotating power of the rotating ball, a second sliding groove penetrating through the gas outlet pipe is arranged in the end wall of the gas outlet pipe, a second sliding plate slidably arranged in the second sliding groove is arranged in the second sliding groove, a first spring is arranged between the second sliding plate and the top wall of the second sliding groove, and when the first sliding plate moves leftwards, the second sliding plate moves upwards to drive a communicating hole which is arranged in the second sliding plate and is communicated with the gas outlet pipe.

Beneficially, a circular cavity communicating the air outlet pipe with an external space is arranged in the end wall of the right side of the second chute, a second rotating shaft is rotatably arranged between the circular cavity and the second chute, a second gear meshed with a first rack fixedly arranged on the bottom wall of the second sliding plate is fixedly arranged at the tail end of the second rotating shaft in the second chute, the tail end of the second rotating shaft in the circular cavity is fixedly connected with a rotating disc rotatably arranged in the circular cavity, and a gas detection sensor is fixedly arranged on the upper end wall of the rotating disc.

Beneficially, the connecting device includes a gear cavity arranged in the sliding block, a spline housing is rotatably arranged in the gear cavity, a fourth gear meshed with a third gear fixedly arranged on the outer surface of the thread housing is fixedly arranged on the outer surface of the spline housing, a spline hole which is through up and down is arranged in the spline housing, a spline shaft which extends up and down is connected in the spline hole through a spline, a first bevel gear is fixedly arranged on the outer surface of the spline shaft in the transmission cavity, a third rotating shaft is rotatably arranged between the transmission cavity and the power cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged at the tail end of the third rotating shaft in the transmission cavity, and a fifth gear is fixedly arranged at the tail end of the third rotating shaft in the power cavity.

Beneficially, the power device includes a third sliding groove with a downward opening, which is arranged in the top wall of the power cavity, a fixed frame is slidably arranged in the third sliding groove, a driving motor is fixedly arranged in the bottom wall of the fixed frame, a sixth gear meshed with the fifth gear is fixedly arranged at the tail end of an output shaft of the driving motor, a fourth sliding groove penetrating through the second sliding groove is arranged in the right side end wall of the third sliding groove, a second rack fixedly connected with the fixed frame is slidably arranged in the fourth sliding groove, a second spring is arranged between the fixed frame and the right side end wall of the third sliding groove, and when the second rack moves to the right, a first inclined hole which is arranged in the second sliding plate and penetrates through the fixed frame from left to right is pushed, so that the first inclined hole is driven to move upwards.

Beneficially, a cavity is arranged between the first sliding groove and the fourth sliding groove in a communicated mode, a seventh gear meshed with the second rack and a third rack arranged on the bottom wall of the first sliding plate is rotatably arranged in the cavity, a through groove communicated with the outside is arranged in the top wall of the clamping groove, when the first sliding plate moves leftwards to drive the through groove to move leftwards to align with the fee deducting module, the fee deducting module can sense a gas fee paying card placed in the clamping groove and deduct the fee paying card.

Advantageously, a first sliding groove with a downward opening is arranged in the top wall of the first sliding groove, a locking rod is slidably arranged in the first sliding groove and is matched with a locking groove arranged in the top wall of the first sliding plate, a second inclined hole which is communicated with the left and the right is arranged in the locking rod, a third spring is arranged between the locking rod and the top wall of the first sliding hole, a first electromagnet matched with the locking rod is fixedly arranged in the top wall of the first sliding hole, a second sliding hole penetrating through the first sliding hole is arranged in the second sliding hole, a magnetic attraction rod is arranged in the second sliding hole in a sliding way, a second electromagnet matched with the magnetic attraction rod is fixedly arranged in the left end wall of the second sliding hole, the gas detection device is characterized in that a button for controlling the rotation of the fixing frame is arranged on the top wall of the machine body, and a warning lamp electrically connected with the gas detection sensor is arranged on the left side of the button.

The invention has the beneficial effects that: the special household valve for the natural gas pipeline can conveniently realize the access of gas, the equipment is convenient to disassemble and replace and maintain, the gas leakage detector is arranged in the equipment, the gas can be effectively prevented from leaking, and meanwhile, the equipment can automatically stop gas when the equipment is in short of charge, so that the special household valve is very convenient and more reliable.

Drawings

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

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of a valve dedicated for natural gas pipeline.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: 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.

With reference to fig. 1-4, the valve for admitting one's residence specially used for natural gas pipeline includes a body 10 and a transmission cavity 52 arranged in the body 10, sliding cavities 47 are symmetrically arranged on the front and back sides of the transmission cavity 52, a sliding block 49 is slidably arranged in the sliding cavity 47, a threaded sleeve 56 is rotatably arranged in the sliding block 49, the threaded sleeve 56 is arranged in the sliding block 49 and moves while rotating under the action of a pipeline connecting device 99, so as to drive a threaded hole 57 arranged in the threaded sleeve 56 to be in threaded connection with the upper side and the lower side of the gas pipeline, so as to connect a vent pipe 58 in a threaded rod 59 in threaded connection with the threaded hole 57, an opening in the end wall of the right side of the body 10 is provided with an outlet pipe 23 communicating the vent pipe 58 rightwards, a flow meter 19 for monitoring gas flow is fixedly arranged, a quick pipe joint 29 communicated with the air outlet pipe 23 is fixedly arranged on the end wall of the right side of the machine body 10, the indoor gas hose can be easily connected into the equipment by utilizing the quick pipe joint 29, a power cavity 73 is arranged in the top wall of the transmission cavity 52, a rotating cavity 22 communicated with the air outlet pipe 23 is arranged in the bottom wall of the power cavity 73, a first rotating shaft 75 is rotatably arranged between the rotating cavity 22 and the power cavity 73, a rotating ball 20 is rotatably arranged at the tail end of the first rotating shaft 75 in the rotating cavity 22, a first gear 74 is fixedly arranged at the tail end of the first rotating shaft 75 in the power cavity 73, a torsion spring 72 is arranged between the first rotating shaft 75 and the bottom wall of the power cavity 73, a through hole 21 is arranged in the rotating ball 20, the rotating ball 20 rotates a quarter of the circumference to drive the hole 21 to communicate the air outlet pipes 23 on the left side and the right side of the, a first sliding groove 39 with a rightward opening is formed in the end wall of the right side of the machine body 10, a first sliding plate 36 is slidably arranged in the first sliding groove 39, a clamping groove 37 for placing a gas payment card is formed in the rightward opening of the first sliding plate 36, a fee deducting module 42 which is arranged in the top wall of the first sliding groove 39 and used for sensing fee deducting of the gas payment card is arranged in the top wall of the first sliding groove 39, the first sliding plate 36 is pushed leftwards, a power device 98 which is arranged in the top wall of the power cavity 73 can be driven to switch between the pipe connecting device 99 and the rotating power of the rotating ball 20, a second sliding groove 76 which penetrates through the air outlet pipe 23 is arranged in the end wall of the air outlet pipe 23, a second sliding plate 28 which is slidably arranged in the second sliding groove 76, a first spring 34 is arranged between the second sliding plate 28 and the top wall of the second sliding groove 76, and when the first sliding plate 36 moves leftwards, the second 77 communicate the air outlet pipes 23 at both sides of the second chute 76.

Beneficially, a circular cavity 25 communicating the air outlet pipe 23 with an external space is disposed in a right end wall of the second sliding chute 76, a second rotating shaft 24 is rotatably disposed between the circular cavity 25 and the second sliding chute 76, a second gear 62 engaged with a first rack 63 fixedly disposed on a bottom wall of the second sliding plate 28 is fixedly disposed at an end of the second rotating shaft 24 in the second sliding chute 76, an end of the second rotating shaft 24 in the circular cavity 25 is fixedly connected with a rotating disc 26 rotatably disposed in the circular cavity 25, and a gas detection sensor 27 is fixedly disposed on an upper end wall of the rotating disc 26.

Advantageously, said connection means 99 comprise a gear chamber 50 provided in said sliding block 49, a spline housing 54 is rotatably arranged in the gear cavity 50, a fourth gear 51 meshed with a third gear 60 fixedly arranged on the outer surface of the thread housing 56 is fixedly arranged on the outer surface of the spline housing 54, a spline hole 55 which is penetrated up and down is arranged in the spline housing 54, a spline shaft 48 which extends up and down is connected in a spline way in the spline hole 55, a first bevel gear 53 is fixedly arranged on the outer surface of the spline shaft 48 in the transmission cavity 52, a third rotating shaft 15 is rotatably arranged between the transmission cavity 52 and the power cavity 73, a second bevel gear 16 engaged with the first bevel gear 53 is fixedly arranged at the tail end of the third rotating shaft 15 in the transmission cavity 52, a fifth gear 14 is fixedly arranged at the tail end of the third rotating shaft 15 in the power cavity 73.

Advantageously, said power means 98 comprise a third downwardly opening sliding channel 12 provided in the top wall of said power chamber 73, a fixed frame 11 is slidably arranged in the third sliding groove 12, a driving motor 13 is fixedly arranged in the bottom wall of the fixed frame 11, a sixth gear 18 meshed with the fifth gear 14 is fixedly arranged at the tail end of the output shaft of the driving motor 13, a fourth sliding groove 31 penetrating through the second sliding groove 76 is provided in the right side end wall of the third sliding groove 12, a second rack 45 fixedly connected with the fixed frame 11 is slidably arranged in the fourth sliding groove 31, a second spring 46 is arranged between the fixed frame 11 and the right end wall of the third sliding groove 12, when the second rack 45 moves to the right, the first inclined hole 30 penetrating left and right in the second sliding plate 28 is pushed, so that the first inclined hole 30 is driven to move upwards.

Advantageously, a cavity 33 is disposed between the first sliding groove 39 and the fourth sliding groove 31, a seventh gear 32 engaged with the second rack 45 and the third rack 35 disposed on the bottom wall of the first sliding plate 36 is rotatably disposed in the cavity 33, a through groove 41 disposed in the top wall of the clamping groove 37 and communicated with the outside is disposed, and when the first sliding plate 36 moves left to drive the through groove 41 to move left to align with the fee deducting module 42, the fee deducting module 42 can sense the gas payment card disposed in the clamping groove 37 and deduct the fee of the gas payment card.

Beneficially, a first sliding groove 39 with a downward opening is disposed in the top wall of the first sliding groove 39, a locking lever 67 engaged with the locking groove 43 disposed in the top wall of the first sliding plate 36 is slidably disposed in the first sliding groove 39, a second inclined hole 68 penetrating left and right is disposed in the locking lever 67, a third spring 70 is disposed between the locking lever 67 and the top wall of the first sliding hole 69, a first electromagnet 71 engaged with the locking lever 67 is fixedly disposed in the top wall of the first sliding hole 69, a second sliding hole 64 penetrating the first sliding hole 69 is disposed in the second sliding hole 64, a magnetic attraction rod 66 is slidably disposed in the second sliding hole 64, a second electromagnet 65 engaged with the magnetic attraction rod 66 is fixedly disposed in the left end wall of the second sliding hole 64, and a button 38 for controlling the rotation of the fixed frame 11 is disposed on the top wall of the body 10, a warning lamp 40 electrically connected with the gas detection sensor 27 is arranged on the left side of the button 38.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

Sequence of mechanical actions of the whole device:

1. when the device of the present invention is in operation, the vent pipe 58 is aligned with the gas pipeline of the installation device, and at this time, pressing the button 38 controls the driving motor 13 to rotate the sixth gear 18, thereby rotating the fifth gear 14, thereby rotating the second bevel gear 16, thereby rotating the first bevel gear 53, thereby rotating the spline shaft 48, thereby rotating the spline housing 54, thereby rotating the fourth gear 51, thereby rotating the third gear 60, thereby rotating the threaded sleeve 56, wherein the threaded sleeve 56 rotates and moves out of the sliding cavity 47, thereby driving the threaded hole 57 in the threaded sleeve 56 to be in threaded connection with the gas pipeline, and when the threaded sleeve 56 drives the sliding block 49 to move to abut against the end wall of the sliding cavity 47, the device is completely inserted into the gas pipeline, at this time, the indoor gas hose is connected into the quick pipe joint 29;

2. when the device needs to be used, the gas payment card after recharging is inserted into the slot 37, and the card is pushed leftwards to move leftwards, so as to drive the first sliding plate 36 to move leftwards, so as to rotate the seventh gear 32, so as to drive the second rack 45 to move rightwards, so as to drive the fixed frame 11 to move rightwards, so as to drive the sixth gear 18 to move rightwards to be engaged with the first gear 74, when the first sliding plate 36 moves to the leftmost side, the locking groove 43 is aligned with the first sliding hole 69, and the through groove 41 is aligned with the fee deducting module 42, at this time, the fee deducting module 42 senses and identifies the gas payment card, when recharging is identified in the gas payment card, the first electromagnet 71 is controlled to repel the locking rod 67 downwards to move downwards to be inserted into the locking groove 43, and when the second rack 45 moves rightwards, the second sliding plate 28 is driven to move upwards, thereby driving the communication hole 77 to move upwards to communicate the air outlet pipes 23 at the left and right sides of the second sliding chute 76, and when the second sliding plate 28 moves upwards, the first rack 63 is driven to move upwards, thereby driving the second gear 62 to rotate, thereby driving the rotating disc 26 to rotate for half a circle, and at this time, the gas detection sensor 27 is in contact with an external cavity;

3. when the gas is needed to be used, the button 38 is pressed to drive the sixth gear 18 to rotate, so as to drive the first gear 74 to rotate, so as to drive the rotating ball 20 to rotate, the rotating ball 20 rotates a quarter of a circle, so as to drive the perforation 21 to communicate the outlet pipes 23 on the left and right sides of the rotating cavity 22, at this time, the gas can enter the indoor gas pipeline through the outlet pipes 23, when the gas payment card is owed, the locking groove 43 controls the locking rod 67 to move up and out of the locking groove 43, at this time, the fixing frame 11 moves left under the action of the second spring 46, so as to drive the first sliding plate 36 to move right out of the device, at the same time, after the second rack 45 moves left, the second sliding plate 28 moves down under the action of the first spring 34, so as to interrupt the outlet pipe 23, and at the same time, after the sixth gear 18 moves right, the first gear 74 rotates reversely under the action of the torsion spring 72, so that the air outlet pipe 23 is interrupted, and gas cannot be used;

4. when the gas detection sensor 27 senses that there is gas leakage in the air, the second electromagnet 65 is controlled to push the magnetic attraction rod 66 to move right, so as to drive the locking rod 67 to move upward, at this time, the fixed frame 11 moves left under the action of the second spring 46, so as to drive the first sliding plate 36 to move right out of the device, at the same time, after the second rack 45 moves left, the second sliding plate 28 moves down under the action of the first spring 34, so as to interrupt the gas outlet pipe 23, at the same time, after the sixth gear 18 moves right, the first gear 74 rotates reversely under the action of the torsion spring 72, so as to interrupt the gas outlet pipe 23, at this time, the warning lamp 40 can not be used to give a warning sound, when the gas detection sensor 27 rotates to communicate with the gas outlet pipe 23 on the right side of the second chute 76, if the rotating chamber 22 and the second sliding plate 28 do not completely interrupt the gas outlet pipe 23, when the gas detection sensor 27 detects that gas leaks, an alarm is given.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.