CN111795406A

CN111795406A - Gas cooking bench device capable of simultaneously controlling gas main valve and gas cooking bench valve

Info

Publication number: CN111795406A
Application number: CN202010711003.1A
Authority: CN
Inventors: 高兴林
Original assignee: Zhuji Taipu Kitchen Technology Co ltd
Current assignee: Zhuji Taipu Kitchen Technology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-10-20

Abstract

The invention discloses a gas cooking bench device capable of simultaneously controlling a gas main valve and a cooking bench valve, which comprises a cooking bench body, wherein a gear transmission groove is arranged in the cooking bench body, a valve device is arranged in the gear transmission groove, the valve device comprises a bevel gear transmission groove arranged on the lower side of the gear transmission groove, a central shaft capable of moving up and down is rotatably matched with a wall body between the bevel gear transmission groove and the gear transmission groove, the central shaft extends upwards to the outer side of the cooking bench body and is fixedly connected with a rotating block, the gear transmission groove is positioned in the gear transmission groove and is fixedly connected with a rotating gear, and a transmission shaft positioned on the right side of the central shaft is rotatably arranged on the top wall of the gear transmission groove.

Description

Gas cooking bench device capable of simultaneously controlling gas main valve and gas cooking bench valve

Technical Field

The invention relates to the technical field of gas equipment, in particular to a gas cooking bench device capable of simultaneously controlling a gas main valve and a gas cooking bench valve.

Background

The gas burning can give out heat, thereby be used by many residents, when current gas is as the fuel of cooking and dish, the top of a kitchen range generally need to install gas main valve and top of a kitchen range valve, after using, because the gas pipeline still persists certain gas, once the pipeline reveals will become very dangerous, people need close the gas valve earlier, close the top of a kitchen range valve after burning the gas in the pipeline, thereby cause the waste, and many residents use and can forget or bother to close the gas main valve, only close the top of a kitchen range valve, so invent a can retrieve the gas of these persisting pipelines, and a switch can control switch top of a kitchen range valve and the convenient resident's of gas main valve and use device is very important.

Disclosure of Invention

The present invention is directed to a gas cooktop device capable of simultaneously controlling a main gas valve and a cooktop valve, which overcomes the above-mentioned drawbacks of the prior art.

The gas cooking bench device capable of simultaneously controlling the gas main valve and the cooking bench valve comprises a cooking bench body, wherein a gear transmission groove is arranged in the cooking bench body, a valve device is arranged in the gear transmission groove, the valve device comprises a bevel gear transmission groove arranged on the lower side of the gear transmission groove, a central shaft capable of moving up and down is rotatably matched on a wall body between the bevel gear transmission groove and the gear transmission groove, the central shaft extends upwards to the outer side of the cooking bench body and is fixedly connected with a rotating block, the gear transmission groove is fixedly connected with a rotating gear in the gear transmission groove, a transmission shaft positioned on the right side of the central shaft is rotatably arranged on the top wall of the gear transmission groove, the transmission shaft is fixedly connected in the gear transmission groove and can be meshed with the rotating gear, a matching groove is arranged on the lower side of the gear transmission groove, the transmission shaft is positioned in the matching groove and is fixedly connected with a ratchet wheel, a torsional spring is connected between the transmission shaft and the bottom wall of the matching groove, a pawl ring groove is formed in the central shaft, the bottom wall of the matching groove is fixedly connected with a pawl sliding block positioned on the right side of the central shaft, a pawl sliding groove is formed in the pawl sliding block, a pawl which is rotatably connected with the pawl ring groove and is matched with the ratchet wheel of the ratchet wheel is slidably connected in the sliding groove, a bevel gear transmission groove is formed in the side of the gear transmission groove, the central shaft is positioned in the bevel gear transmission groove and is fixedly connected with a transmission bevel gear, a bevel gear meshing groove is formed in the left side of the bevel gear transmission groove, a rotating shaft is rotatably matched with a wall body between the bevel gear transmission groove and the bevel gear transmission groove, when the operator rotates rotatory piece, through the gas volume size and the switching of gear pair control top of a kitchen range, press down when the operator rotatory piece breaks away from with the ratchet pawl through bevel gear pair, closes the top of a kitchen range valve and controls the switching of gas main valve, bevel gear meshing groove upside has seted up the collection chamber, it is equipped with recovery unit to collect the intracavity.

On the basis of the technical scheme, the valve manufacturing device further comprises a reset groove arranged on the upper side of the gear transmission groove, the central shaft is positioned on a rotating block fixedly connected with the reset groove and in rotating fit with the reset groove, the central shaft is positioned on a rotating ring groove arranged in the reset groove, the rotating ring groove is in sliding connection with a rotating connecting block in rotating fit with the reset groove, an abutting spring is connected between the rotating connecting block and the rotating block, the rear side of the gear transmission groove is communicated with a sliding groove, a rotating shaft is in rotating fit with the top wall of the sliding groove, the rotating shaft is positioned in the sliding groove and is fixedly connected with a rotating gear meshed with the transmission gear, a cooking bench valve meshed with the wire groove is in sliding connection with the sliding groove, and the rear side of the sliding groove is provided with one side of a gas pipeline of a vertical part fixedly installed, the gas pipeline is internally provided with a gas channel, the gas channel can be blocked or opened by the back and forth movement of the hearth valve so as to control the hearth switch, the left side of the bevel gear meshing groove is provided with a belt pulley groove, the left wall of the belt pulley groove is in running fit with a connecting screw rod positioned on the upper side of the rotating shaft, the connecting screw rod is connected with a belt pulley pair positioned in the belt pulley groove by the rotating shaft, the left side of the upper end of the belt pulley groove is provided with a gas main valve moving groove, and the connecting screw rod is positioned in the gas main valve moving groove and is in threaded connection with the gas main valve moving groove in a sliding manner and can block the vertical part of the other side of the gas channel.

On the basis of the technical scheme, the recovery device comprises an air pump fixedly installed on the top wall of the collection cavity, the right side of the collection cavity is communicated with a rack moving groove, a sliding rack is connected in the rack moving groove in a sliding manner, a wire wheel groove is formed in the lower side of the rack moving groove, a wall body between the wire wheel groove and the rack moving groove is in rotating fit with a wire wheel shaft, the wire wheel shaft extends upwards to the tail end and is connected with a power motor embedded in the wall body in a power connection manner, the wire wheel shaft is positioned in the rack moving groove and is fixedly connected with an engaging gear engaged with the sliding rack, the wire wheel shaft is positioned in the wire wheel groove and is fixedly connected with a wire wheel, the left side of the wire wheel groove is provided with a baffle plate groove, a vertical pipeline is fixedly installed on the lower side of the wall body of the collection cavity, the baffle groove is internally and slidably connected with a baffle, a connecting spring is connected between the baffle and the right wall of the baffle groove, a wire groove is communicated between the wire wheel groove and the baffle groove, a wire is wound around the wire wheel and is provided with a fine wire which is connected with the right side of the baffle through the same wire groove, the left side of the sliding rack is positioned in a collection cavity fixedly connected with sealing blocks, the left side of the collection cavity is provided with a gas storage cavity communicated with the vertical part of the gas channel, the gas storage cavity is communicated with the collection cavity and is provided with a connecting channel, a one-way valve is fixedly arranged in the connecting channel, a block groove is arranged on the upper side of the bevel gear meshing groove, the block groove is rotatably matched with the wall body between the bevel gear meshing grooves and is provided with a rotating lead screw, the rotating lead screw is matched with an inner bevel gear pair in the bevel gear meshing groove through the rotating lead screw, and the rotating lead screw The interface blocks the block.

The invention has the beneficial effects that: switch that can control the top of a kitchen range valve through pressing down or rotating rotatory piece can also control the switching of gas main valve simultaneously with opening the size, and the person of facilitating the use operates switching gas main valve and top of a kitchen range valve, and the user forgets to close the gas main valve and causes the dangerous emergence that the pipeline revealed when having avoided using, can retrieve the remaining gas in the pipeline after closing the gas main valve simultaneously, has strengthened the rational utilization of resource.

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 an overall schematic structural view of a gas cooktop device that can control a gas main valve and a cooktop valve simultaneously;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure in the direction B-B in FIG. 2;

fig. 4 is a schematic view of the structure in the direction of C-C in fig. 2.

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 gas cooktop device capable of simultaneously controlling a main gas valve and a cooktop valve according to an embodiment of the present invention includes a cooktop body 10, a gear transmission groove 42 is provided in the cooktop body 10, a valve device is provided in the gear transmission groove 42, the valve device includes a bevel gear transmission groove 46 provided at a lower side of the gear transmission groove 42, a central shaft 64 capable of moving up and down is rotatably fitted to a wall body between the bevel gear transmission groove 46 and the gear transmission groove 42, the central shaft 64 extends upward to an outer side of the cooktop body 10 and is fixedly connected with a rotation block 55, the gear transmission groove 42 is located in the gear transmission groove 42 and is fixedly connected with a rotation gear 41, a transmission shaft 53 located at a right side of the central shaft 64 is rotatably provided on a top wall of the gear transmission groove 42, a transmission gear 52 capable of meshing with the rotation gear 41 is fixedly connected to the transmission shaft 53 located in the gear transmission, a matching groove 48 is formed in the lower side of the gear transmission groove 42, a ratchet 50 is fixedly connected in the matching groove 48 through the transmission shaft 53, a torsion spring 65 is connected between the transmission shaft 53 and the bottom wall of the matching groove 48, a pawl ring groove 43 is formed in the center shaft 64, a pawl sliding block 47 positioned on the right side of the center shaft 64 is fixedly connected to the bottom wall of the matching groove 48, a pawl sliding groove 56 is formed in the pawl sliding block 47, a pawl 51 which is rotatably connected with the pawl ring groove 43 and is matched with the ratchet of the ratchet 50 is slidably connected in the pawl sliding groove 56, a bevel gear transmission groove 46 is formed in the side of the gear transmission groove 42, a transmission bevel gear 45 is fixedly connected in the bevel gear transmission groove 46 through the center shaft 64, a bevel gear meshing groove 12 is formed in the left side of the bevel gear transmission groove 46, and a rotating shaft 11 is rotatably matched with, the rotating shaft 11 is positioned in the bevel gear transmission groove 46 and is fixedly connected with a meshing bevel gear 44 which can be meshed with the bevel gear transmission groove 46, when an operator rotates the rotating block 55, the gas quantity and the opening and closing of a cooking bench are controlled through a gear pair, when the operator presses down the rotating block 55, the rotating block is separated from a ratchet pawl through the bevel gear pair, a cooking bench valve is closed, the opening and closing of a gas main valve are controlled, the upper side of the bevel gear meshing groove 12 is provided with a collecting cavity 26, and a recovery device is arranged in the collecting cavity 26.

In addition, in an embodiment, the valve is made and is still including seting up the groove 39 that resets of gear drive groove 42 upside, center pin 64 is located reset groove 39 fixedly connected with reset groove 39 normal running fit's turning block 37, center pin 64 is located reset and has seted up the rotation annular 54 in the groove 39, rotation annular 54 sliding connection have with reset groove 39 normal running fit's rotation connecting block 40, rotation connecting block 40 with be connected with butt spring 38 between the turning block 37, gear drive groove 42 rear side intercommunication has spout 63, spout 63 roof normal running fit has rotation axis 60, rotation axis 60 is located fixedly connected with in the spout 63 with the slewing gear 62 of drive gear 52 meshing, sliding connection in the spout 63 with the top of a kitchen range valve 61 of 6 wire grooves 32 meshing, spout 63 rear side be equipped with one side of the gas pipeline 17 of the vertical part of top of a kitchen range organism 10 fixed mounting A gas channel 16 is formed in the gas pipeline 17, the gas channel 16 can be blocked or opened by moving the cooking bench valve 61 back and forth, so as to control the cooking bench switch, a pulley groove 13 is formed in the left side of the bevel gear meshing groove 12, a connecting screw rod 19 positioned on the upper side of the rotating shaft 11 is matched with the left wall of the pulley groove 13 in a rotating manner, the connecting screw rod 19 is connected with a pulley pair positioned in the pulley groove 13 of the rotating shaft 11, a gas main valve moving groove 18 is formed in the left side of the upper end of the pulley groove 13, the connecting screw rod 19 is positioned in the gas main valve moving groove 18, and a gas main valve moving groove 21 which is in sliding connection with the gas main valve moving groove 18 and can block the vertical part on the other side of the gas channel 16 is connected in a threaded manner, so as to press the rotary block 55 and rotate the gas main valve.

In addition, in one embodiment, the recycling device comprises an air pump 25 fixedly mounted on the top wall of the collection chamber, a rack moving groove 29 is arranged on the right side of the collection chamber 26 in a communicating manner, a sliding rack 28 is slidably connected in the rack moving groove 29, a wire wheel groove 32 is formed on the lower side of the rack moving groove 29, a wire wheel shaft 31 is rotatably matched with the wall body between the wire wheel groove 32 and the rack moving groove 29, the wire wheel shaft 31 extends upwards to the tail end and is in power connection with a power motor 70 embedded in the wall body, an engaging gear 30 engaged with the sliding rack 28 is fixedly connected in the rack moving groove 29, a wire wheel 33 is fixedly connected in the wire wheel groove 32 by the wire wheel shaft 31, a baffle groove 68 is formed on the left side of the wire wheel groove 32, a vertical pipe 66 is fixedly mounted on the lower side wall body of the collection chamber 26, a vertical passage 67 capable of communicating with the horizontal part on one side of the gas passage 16 is formed in the, the baffle plate groove 68 is internally and slidably connected with a baffle plate 36, a connecting spring 35 is connected between the baffle plate 36 and the right wall of the baffle plate groove 68, a wire groove is communicated between the wire wheel groove 32 and the baffle plate groove 68, the wire wheel 33 is wound with a thin wire 34 connected with the right side of the baffle plate 36 through the wire groove, the left side of the sliding rack 28 is positioned in the collection cavity 26 and is fixedly connected with a sealing block 27, the left side of the collection cavity 26 is provided with a gas storage cavity 22 communicated with the vertical part of the gas channel 16, a connecting channel 24 is communicated between the gas storage cavity 22 and the collection cavity 26, a one-way valve 23 is fixedly arranged in the connecting channel 24, the upper side of the bevel gear meshing groove 12 is provided with a block groove 69, the wall body between the block groove 69 and the bevel gear meshing groove 12 is in rotating fit with a rotating screw rod 14, and the rotating screw rod 14 and the rotating shaft 11 are positioned in the bevel gear, the rotary screw rod 14 is located in the block groove 69, the connector blocking block 15 capable of blocking the connector of the vertical channel 67 and the connector of the gas channel 16 is connected with the inner thread, when the gas valve and the cooking bench valve are closed, the connector blocking block 15 opens the vertical channel 67 of the handle and the gas channel 16, the collecting cavity 26 is in a negative pressure state, and gas in the gas channel 16 is collected.

In an initial state, the air pump 25 works to pump air, the collecting cavity 26 is in a negative pressure state, the connector blocking block 15 opens the connector of the gas channel 16 and the vertical channel 67, the gas main valve moving groove 21 blocks the gas channel 16, the thin wire 34 is in a wire winding state, the rotary screw 14 is not meshed with the transmission bevel gear 45, and the pawl 51 is abutted to the ratchet 50.

When gas needs to be opened, an operator presses the rotating block 55 to enable the transmission bevel gear 45 to be meshed with the meshing bevel gear 44, the rotating block 55 is rotated, at the moment, the pawl 51 is separated from abutting contact with the pawl ratchet 50, the transmission bevel gear 45 drives the meshing bevel gear 44 to rotate, the rotating shaft 11 drives the connecting screw rod 19 to rotate, the gas main valve moving groove 21 moves rightwards, gas stored in the gas storage cavity 22 enters the gas channel 16 to be conveyed, meanwhile, the rotating shaft 11 drives the rotating screw rod 14 to rotate to enable the interface blocking block 15 to move upwards to block the vertical channel 67, at the moment, the rotating block 55 is released, the rotating block 55 returns to the original position under the action of the abutting spring 38, the rotating block 55 enables the rotating gear 41 to drive the transmission gear 52 to rotate to enable the rotating gear 62 to rotate, the cooking bench valve 61 moves forwards to enable the control cooking bench valve 61 to be, after ignition, cooking is started, then the rotating block 55 is released, if the size of the fire is adjusted, the rotating gear 41 can be rotated clockwise to drive the transmission gear 52 to rotate or the rotating block 55 is pressed down until the meshing bevel gear 44 and the transmission bevel gear 45 are not meshed with the pawl 51 and are separated from and abutted against the ratchet wheel 50, but the transmission gear 52 and the rotating gear 41 are still meshed to rotate anticlockwise, so that the opening area of the gas channel 16 leading to the cooking bench is controlled by controlling the valve 61 of the cooking bench to control the gas inlet and outlet, and the purpose of controlling the fire is achieved.

The user needs to close the cooking bench valve 61 after cooking, but cooking is carried out at intervals, the rotating block 55 is pressed to enable the pawl 51 and the ratchet 50 to be separated from abutting contact with the transmission gear 52 and the rotating gear 41 to be separated from meshing, the pawl 51 and the ratchet 50 are separated from abutting contact, under the action of the torsion spring 65, the transmission shaft 53 rotates reversely to drive the rotating gear 62 to rotate reversely, the cooking bench valve 61 is reset to close the gas channel 16 at the gas stove, at the moment, the gas main valve moving groove 21 in the gas channel 16 is still opened, the interface blocking block 15 still seals the interface between the gas channel 16 and the vertical channel 67, at the moment, the gas channel 16 is still filled with gas, and when the rotating block 55 is rotated again, burning can be started.

When a user finishes cooking and does not need to cook any more, the gas valve needs to be closed, the rotating block 55 is pressed downwards to enable the transmission bevel gear 45 to be meshed with the meshing bevel gear 44, at the moment, the pawl 51 is separated from and abutted against the ratchet wheel 50, the cooking stove valve is closed, meanwhile, the rotating block 55 is rotated to enable the gas main valve moving groove 21 to close the gas channel 16, the interface blocking block 15 opens the interface between the vertical channel 67 and the gas channel 16, at the moment, gas still remaining in the gas channel 16 is sucked into the collecting cavity 26, the power motor 70 is started, the line shaft 31 drives the sliding rack 28 to move leftwards, the line wheel 33 conducts a line, the baffle plate 36 moves leftwards to block the collecting cavity 26, the sealing block 27 moves leftwards to re-press the gas into the gas storage cavity 22 through the connecting channel 24, and then the power.

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 but gas top of a kitchen range device of simultaneous control gas main valve and top of a kitchen range valve, includes the top of a kitchen range organism, its characterized in that: a gear transmission groove is arranged in the cooking bench machine body, a valve device is arranged in the gear transmission groove, the valve device comprises a bevel gear transmission groove arranged on the lower side of the gear transmission groove, a central shaft capable of moving up and down is arranged between the bevel gear transmission groove and the gear transmission groove in a rotating fit manner, the central shaft upwards extends to the outer side of the cooking bench machine body and is fixedly connected with a rotating block, the gear transmission groove is fixedly connected with a rotating gear in the gear transmission groove, the top wall of the gear transmission groove is rotatably provided with a transmission shaft on the right side of the central shaft, the transmission shaft is fixedly connected with a transmission gear capable of being meshed with the rotating gear in the gear transmission groove, a matching groove is arranged on the lower side of the gear transmission groove, the transmission shaft is fixedly connected with a ratchet in the matching groove, and a torsion spring is connected between the, a pawl ring groove is formed in the center shaft, the bottom wall of the matching groove is fixedly connected with a pawl sliding block positioned on the right side of the center shaft, a pawl sliding groove is formed in the pawl sliding block, the sliding groove is connected with the pawl ring groove in a rotating manner and is matched with a pawl of a ratchet wheel, a bevel gear transmission groove is formed in the side of the gear transmission groove, the center shaft is positioned in the bevel gear transmission groove and is fixedly connected with a transmission bevel gear, a bevel gear meshing groove is formed in the left side of the bevel gear transmission groove, a rotating shaft is matched with a wall body between the bevel gear meshing groove and the bevel gear transmission groove in a rotating manner, the rotating shaft is positioned in the bevel gear transmission groove and is fixedly connected with a meshing bevel gear which can be meshed with the bevel gear transmission groove, when an operator rotates the rotating, when an operator presses down the rotating block to be separated from the ratchet wheel pawl through the bevel gear pair, the cooking bench valve is closed and the opening and closing of the gas main valve are controlled, a collecting cavity is formed in the upper side of the bevel gear meshing groove, and a recovery device is arranged in the collecting cavity.

2. A gas cooktop apparatus capable of controlling a main gas valve and a cooktop valve simultaneously according to claim 1, wherein: the valve is manufactured by further comprising a reset groove arranged on the upper side of the gear transmission groove, the central shaft is positioned on a rotating block fixedly connected with the reset groove and in rotating fit with the reset groove, the central shaft is positioned on a rotating ring groove arranged in the reset groove, the rotating ring groove is in sliding connection with a rotating connecting block in rotating fit with the reset groove, an abutting spring is connected between the rotating connecting block and the rotating block, the rear side of the gear transmission groove is communicated with a sliding groove, the top wall of the sliding groove is in rotating fit with a rotating shaft, the rotating shaft is positioned in the sliding groove and is fixedly connected with a rotating gear meshed with the transmission gear, a cooking bench valve meshed with the wire wheel groove is in sliding connection with the sliding groove, the rear side of the sliding groove is provided with one side of a gas pipeline of a vertical part fixedly installed on the cooking bench body, and a, the gas range is characterized in that the gas channel can be blocked or opened by the back-and-forth movement of the gas range valve so as to control the gas range switch, a belt wheel groove is formed in the left side of the bevel gear meshing groove, a connecting screw rod positioned on the upper side of the rotating shaft is matched with the left wall of the belt wheel groove in a rotating mode, the connecting screw rod is connected with a belt wheel pair positioned in the belt wheel groove through the rotating shaft, a gas main valve moving groove is formed in the left side of the upper end of the belt wheel groove, and the connecting screw rod is positioned in the gas main valve moving groove and is in threaded connection with the gas main valve moving groove in a sliding mode and can block the vertical part of.

3. A gas cooktop apparatus capable of simultaneously controlling a main gas valve and a cooktop valve according to claim 1, wherein: the recovery device comprises an air pump fixedly mounted on the top wall of the collecting cavity, a rack moving groove is communicated with the right side of the collecting cavity, a sliding rack is connected in the rack moving groove in a sliding manner, a wire wheel groove is formed in the lower side of the rack moving groove, a wire wheel shaft is rotatably matched with a wall body between the wire wheel groove and the rack moving groove, the wire wheel shaft extends upwards to the tail end and is connected with a power motor embedded in the wall body in a power mode, the wire wheel shaft is positioned in the rack moving groove and is fixedly connected with an engaging gear meshed with the sliding rack, the wire wheel shaft is positioned in the wire wheel groove and is fixedly connected with a wire wheel, a baffle groove is formed in the left side of the wire wheel groove, a vertical pipeline is fixedly mounted on the lower side wall body of the collecting cavity, the vertical pipeline is provided with a vertical channel capable of being communicated, a connecting spring is connected between the baffle plate and the right wall of the baffle plate groove, a wire groove is communicated between the wire wheel groove and the baffle plate groove, the wire wheel is wound with a fine wire which is connected with the right side of the baffle plate through the wire groove, the left side of the sliding rack is positioned in the collecting cavity and is fixedly connected with a sealing block, a fuel gas storage cavity communicated with the vertical part of the fuel gas channel is arranged at the left side of the collecting cavity, a connecting channel is communicated between the fuel gas storage cavity and the collecting cavity, a one-way valve is fixedly arranged in the connecting channel, a block slot is arranged on the upper side of the bevel gear meshing slot, a rotary screw rod is rotationally matched with a wall body between the block groove and the bevel gear meshing groove, the rotary screw rod is matched with an inner bevel gear pair of which the rotary shaft is positioned in the bevel gear meshing groove, the rotary screw rod is positioned in the blocking block groove, and the inner thread of the blocking block groove is connected with a connector blocking block which can block the vertical channel and the gas channel connector.