CN110131584B

CN110131584B - Safety conveying method for high-risk chemical fluid with inflammability, high corrosivity and the like

Info

Publication number: CN110131584B
Application number: CN201910415820.XA
Authority: CN
Inventors: 张继美; 其他发明人请求不公开姓名
Original assignee: Allchemy Co ltd
Current assignee: ALLCHEMY Co.,Ltd.
Priority date: 2019-05-18
Filing date: 2019-05-18
Publication date: 2020-11-24
Anticipated expiration: 2039-05-18
Also published as: CN110131584A

Abstract

The invention discloses a safe conveying method of high-risk chemical fluids with inflammability, high corrosivity and the like, which comprises the following steps: connecting the flow-through nipple to a utilization system; inserting the inserting mechanism into the first movable cylinder; decrypting the first encrypted component by the decryption lock teeth; the plug-in mechanism rotates positively and pulls the movable cylinder to rotate positively synchronously, so that the limit member cancels the limitation on the sub-body, and the second encryption member is decrypted completely; the plug-in mechanism continues to rotate positively until the guide bulge and the guide groove are positioned on the same straight line, the sub-body is popped out from the parent body and positioned in the second movable cylinder, and the third encryption component is decrypted completely; decrypting the fourth encrypted component by the first/second magnetic blocks; the plug-in mechanism is continuously positively rotated and the movable cylinder is pulled to be synchronously positively rotated, so that the sub-body is locked by the locking member, the transition member is communicated with the connecting member, and the chemical harmful fluid in the storage system flows into the utilization system through the connecting member, the transition member, the sub-body, the circulation pipeline and the circulation nozzle.

Description

Safety conveying method for high-risk chemical fluid with inflammability, high corrosivity and the like

Technical Field

The invention relates to the field of chemical industry, in particular to an encryption butt joint method for chemical hazardous fluid.

Background

In the operation of welding and cutting equipment, chemical substances such as acetylene and the like are required to be used as a combustion source, but most of the chemical substances such as acetylene and the like are harmful or dangerous goods, a worker inserts a pipeline for connecting, welding and the like utilization equipment into storage equipment such as a storage tank for storing the chemical substances such as acetylene and the like, and then opens a valve on the storage equipment, but if the worker introduces wrong connection between the utilization equipment and the storage equipment due to various accidental factors, chemical substances in the utilization system and the storage system are not matched, slight leakage of the chemical substances is caused slightly, and a series of accidents such as corrosion damage and explosion of the utilization equipment are caused seriously, so that the inventor designs a device for forming an encrypted insertion channel between the utilization equipment and the storage equipment by adopting a mechanical encryption mode, and if the insertion is not matched, the utilization equipment and the storage equipment cannot be connected, namely, the chemical substances can not circulate, thereby achieving the purposes of encryption butt joint and leakage prevention.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide an encryption butt joint method for chemical harmful fluid, wherein an encryption mechanism adopts quadruple encryption mainly adopting a magnetic encryption mode, and any one of the quadruple encryption modes cannot be decrypted by a plug-in mechanism, so that the plug-in mechanism cannot be communicated with a connecting mechanism, namely, the harmful fluid in a storage system cannot circulate, thereby achieving the purpose of encryption butt joint circulation, and effectively preventing the occurrence of a series of adverse effects caused by harmful gas leakage due to mistaking a utilization system and the storage system by a user.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The safe conveying method of high-risk chemical fluid with inflammability, high corrosivity and the like comprises the following steps:

a preparation stage;

s1: connecting the plugging mechanism with a utilization system;

the plug-in mechanism comprises a connecting component, a first decryption component and a second decryption component, wherein the connecting component comprises a circulation pipeline, one end of the circulation pipeline is a connecting end, the other end of the circulation pipeline is provided with a circulation connecting nozzle in a matching way, the circulation connecting nozzle is used for being connected and communicated with a utilization system, the first decryption component comprises a parent body, the parent body is a circular cylinder with openings at two ends, the parent body is coaxially fixed at the connecting end of the circulation pipeline, the second decryption component comprises a daughter body and a spring, the daughter body is a circular cylinder with openings at two ends and is coaxially arranged with the parent body, one end of the daughter body is positioned in the circulation pipeline, the other end of the daughter body is positioned in the parent body, the spring is, the daughter is driven to move away from the circulation nozzle by the elasticity of the ejection spring and is ejected out of the parent body, and a limiting component used for limiting the daughter to be ejected out of the parent body is arranged between the daughter and the parent body;

the user connects the circulation nozzle with the utilization system;

s2: inserting the plugging mechanism into the mounting housing;

the mounting cover is fixed on the outer surface of the storage system through a fastener, the mounting cover is of a circular cylinder structure with openings at two ends, a fixed cylinder of the circular cylinder structure with openings at two ends is coaxially and fixedly arranged in the mounting cover, a movable cylinder I and a movable cylinder II of the circular cylinder structure with openings at two ends are arranged in the fixed cylinder, the movable cylinder I and the movable cylinder II are coaxially and movably sleeved in the fixed cylinder, and the movable cylinder I is positioned on one side of the movable cylinder II, which is far away from the storage system;

the encryption mechanism is arranged in the mounting housing and comprises a first encryption component, a second encryption component, a third encryption component, a fourth encryption component and a locking component;

the user correspondingly inserts the inserting mechanism into the first movable cylinder;

(II) a decryption stage;

s3: the fixed cylinder is provided with a first encryption hole penetrating through the radial thickness of the fixed cylinder, and the movable cylinder is provided with a second encryption hole penetrating through the radial thickness of the movable cylinder and communicated with the first encryption hole;

the first encryption component is arranged between the fixed barrel and the movable barrel I and comprises an encryption piece I, and the encryption piece I comprises a top rod I, an encryption rod I and an encryption spring I;

the outer circle surface of the parent body is provided with a decryption lock tooth matched with the first encryption component;

after the inserting mechanism is inserted into the first movable cylinder, the decryption lock tooth is in contact with the first encryption member and pushes the whole first encryption member to move away from the axial center line of the first movable cylinder, finally, the first ejector rod is integrally positioned in the second encryption hole, the first encryption rod is integrally positioned in the first encryption hole, the first encryption member is decrypted, and the first movable cylinder can axially rotate around the first movable cylinder;

s4: the second encryption component is arranged between the fixed cylinder and the first movable cylinder, the second encryption component comprises a trigger rod and a trigger groove arranged on the end face of the fixed cylinder, which is far away from the storage system, the trigger groove can be sequentially divided into two sections along the forward rotation direction of the plugging mechanism, the two sections are respectively a trigger section and a rotating section, the distance between the trigger section and the circle center of the first movable cylinder decreases progressively along the forward rotation direction of the plugging mechanism, and the rotating section and the first movable cylinder are coaxially arranged;

the outer circular surface of the first movable cylinder is provided with an avoiding hole penetrating through the radial thickness of the first movable cylinder, the avoiding hole is close to the end surface of the first movable cylinder, which is far away from the second movable cylinder, one end of the trigger rod is positioned in the avoiding hole, the other end of the trigger rod is opposite to the trigger groove, and the end is provided with a linkage protrusion, the free end of which is positioned in the trigger groove, in a matching way, when the first movable cylinder rotates in accordance with the forward rotation direction of the splicing mechanism, the linkage protrusion is matched with the trigger section of the trigger groove to enable the trigger rod to move close to the axial center line of the first movable cylinder, and when the linkage protrusion rotates forward to the rotating section of the trigger groove, the trigger rod stops moving close to the;

a user rotates the plug-in mechanism positively and pulls the movable cylinder to rotate synchronously, so that the trigger rod moves close to an axial center line of the movable cylinder, namely the trigger rod is contacted with the limiting component and the limiting component integrally moves close to an axial center line of the daughter, the limiting component cancels the limitation on the daughter, the second encryption component is decrypted completely, and the daughter can be popped out of the mother body but is not popped out;

s5: the third encryption component comprises a guide bulge arranged on the inner circular surface of the second movable cylinder, the extending direction of the guide bulge is parallel to the axial direction of the second movable cylinder, the outer circular surface of the sub-body is provided with a guide groove penetrating through the axial length of the sub-body, and the guide bulge is positioned right ahead of the guide groove which rotates along the positive rotation direction of the plug-in mechanism when the second encryption component completes decryption;

after the second encryption component is decrypted, the plug-in mechanism continues to rotate forwards until the guide protrusion and the guide groove are positioned on the same straight line, the daughter is ejected out of the mother body under the action of the elastic force of the ejection spring and positioned in the second movable cylinder, and the third encryption component is decrypted;

s6: the fixed cylinder is provided with a third encryption hole/a fourth encryption hole which penetrates through the radial thickness of the fixed cylinder, and the movable cylinder is provided with a fifth encryption hole/a sixth encryption hole which penetrates through the radial thickness of the movable cylinder and is coaxially arranged with and communicated with the third encryption hole/the fourth encryption hole;

the fourth encryption component is arranged between the fixed barrel and the movable barrel II and comprises an encryption piece II and an encryption piece III, the encryption piece II comprises an encryption spring II and an encryption rod II made of magnetic materials, and the encryption piece III comprises an encryption spring III, an encryption rod III and a push rod II made of magnetic materials;

the outer circle surface of the daughter is also provided with a magnetic block matched with the fourth encryption component, and the magnetic block is divided into a first magnetic block which enables the second encryption component to decrypt in a magnetic attraction mode and a second magnetic block which enables the third encryption component to decrypt in a magnetic repulsion mode;

after the third component is decrypted and the whole sub-body is positioned in the second movable cylinder, the first magnetic block enables the whole encryption rod II to be positioned in the fifth encryption hole in a magnetic attraction mode, the second magnetic block enables the whole ejector rod II to be positioned in the sixth encryption hole in a magnetic repulsion mode, the whole encryption rod III is positioned in the fourth encryption hole, the fourth encryption component is decrypted, and meanwhile, the second movable cylinder can rotate around the self axial direction;

(III) a connection stage;

s7: the connecting mechanism is arranged on one side, away from the first movable cylinder, of the second movable cylinder and comprises a communicating component communicated with the storage system and a transition component communicated with the second movable cylinder;

and continuing to rotate the plug-in mechanism forwardly and pull the movable cylinder II to rotate forwardly synchronously, wherein in the process of rotating forwardly, the locking component locks the sub-body and limits the sub-body to displace along the self axial direction, then the movable cylinder II rotates forwardly and pulls the transition component to be communicated with the communicating component, and the chemical harmful fluid in the storage system flows into the sub-body through the communicating component and the transition component and flows into the utilization system through the sub-body, the circulation pipeline and the circulation nozzle.

As a further improvement of the present solution.

The limiting component comprises a limiting block and a limiting spring, the limiting block is arranged in the limiting groove, part of the limiting block is positioned in the limiting hole, the limiting spring is arranged between the bottom of the limiting groove and the limiting block, and the elastic force of the limiting spring drives the limiting block to move away from the bottom of the limiting groove;

the coaxial sleeve is coaxially and fixedly arranged in the fixed cylinder and coaxially sleeved between the first movable cylinder and the second movable cylinder, the first movable cylinder/the second movable cylinder are movably connected with the coaxial sleeve, and the first movable cylinder and the second movable cylinder rotate without interference.

As a further improvement of the present solution.

A fastening bolt is arranged at the orifice of the first encryption hole, which is far away from the first movable cylinder, and a built-in step I is arranged at the orifice of the second encryption hole, which is far towards the axial center line of the first movable cylinder;

the first ejector rod is arranged in the first encryption hole, a decryption protrusion is arranged at one end of the first ejector rod, which is far away from the fixed cylinder, the free end of the decryption protrusion penetrates through the inner circular surface of the built-in step I and is positioned in the first movable cylinder, the first encryption rod is arranged in the first encryption hole, one end of the first encryption rod, which is far away from the fastening bolt, is positioned in the second encryption hole and is in contact with the first ejector rod, one end of the first encryption spring is fixedly connected with the fastening bolt, the other end of the first encryption rod is fixedly connected with the first encryption rod, and the first encryption rod/the first ejector rod are driven by the elasticity of the first encryption spring to move close;

the first encryption member is provided with a plurality of groups in an array manner along the axial direction of the fixed cylinder, the first encryption member is provided with a plurality of groups in an array manner along the circumferential direction of the fixed cylinder, and the decryption lock teeth are correspondingly provided with a plurality of groups;

the second encryption components are arranged in a plurality of groups along the circumferential direction of the fixed cylinder in an array manner, and the limiting components are correspondingly arranged in a plurality of groups;

the guide protrusions are provided with a plurality of groups along the two circumferential directions of the movable cylinder in an array mode, and the guide grooves are correspondingly provided with a plurality of groups.

As a further improvement of the present solution.

A limiting bolt is mounted at the orifice of the encryption hole III/IV deviating from the movable cylinder II in a matching manner, and a built-in step II is arranged at the orifice of the encryption hole V/VI deviating from the fixed cylinder II;

the encryption rod II is arranged in the encryption hole V, the end part of the encryption rod II facing the fixed cylinder is positioned in the encryption hole III, the end of the encryption rod II is provided with a limiting step, the limiting step and the encryption hole III/V are in sliding guide fit, the encryption spring II is arranged outside the encryption rod II, one end of the encryption spring II is fixedly connected with the limiting step, the other end of the encryption spring II is fixedly connected with the built-in step II arranged in the encryption hole V, and the elasticity of the encryption spring II enables the encryption rod II to move away from the axial center line of the movable cylinder II;

the second ejector rod is arranged in the sixth encryption hole, the third encryption rod is arranged in the fourth encryption hole, the end part, facing the second movable barrel, of the third encryption rod is located in the sixth encryption hole and is in contact with the second ejector rod, one end of the third encryption spring is fixedly connected with a limiting bolt arranged in the fourth encryption hole, the other end of the third encryption spring is fixedly connected with the third encryption rod, and the third encryption rod moves close to the axial center line of the second movable barrel due to the elasticity of the third encryption spring;

the second encryption component and the third encryption component are arranged in the fixed cylinder in an axial direction at intervals, the fourth encryption component is arranged in the fixed cylinder in an array mode in the circumferential direction, and the magnetic blocks are correspondingly arranged in the groups.

As a further improvement of the present solution.

The locking component is used for locking the daughter into the second movable cylinder after the encryption mechanism is completely decrypted, and an avoidance groove penetrating through the radial thickness of the end face, deviating from the first movable cylinder, of the second movable cylinder is arranged on the end face of the first movable cylinder;

the locking component comprises an insertion rod and a locking groove arranged on the end face of the fixed cylinder, which is far away from the second encryption component, the locking groove is sequentially divided into two sections along the positive rotation direction of the insertion mechanism and respectively comprises a locking section and a coaxial section, the distance between the locking section and the two axial center lines of the movable cylinder decreases progressively along the positive rotation direction of the insertion mechanism, and the coaxial section and the second movable cylinder are coaxially arranged;

one end of the inserted rod is positioned in the avoiding groove, the other end of the inserted rod is opposite to the locking groove, the end is provided with a traction bulge of which the free end is positioned in the locking groove, when the second movable cylinder rotates in accordance with the positive rotation of the inserting mechanism, the inserted rod moves close to the axial center line of the second movable cylinder through the matching of the traction bulge and the locking section of the locking groove, and when the traction bulge rotates forwards to the coaxial section of the locking groove, the inserted rod stops moving close to the axial center line of the second movable cylinder;

the locking components are arranged in a plurality of groups along the circumferential direction of the fixed cylinder in an array manner;

the outer circle surface of the sub-body is provided with slots corresponding to the locking members, and the slots are correspondingly provided with a plurality of groups.

As a further improvement of the present solution.

The connecting component comprises a connecting cover shell and a connecting core, the connecting cover shell is of a shell structure with one open end and one closed end, the open end is matched with the cover shell, and the closed end of the connecting cover shell is provided with a connecting nozzle which is used for being connected and communicated with the storage system;

the connecting core is a circular cylinder with openings at two ends and is coaxially fixed in the connecting cover shell, and a plurality of assembling through holes are formed in the outer circular surface of the connecting core in an array manner;

the transition member comprises a transition core and a transition pipeline, the transition core is of a circular cylinder structure with two closed ends, the transition core is arranged in the connection core, the transition core and the connection core form sealed rotation fit, the outer circular surface of the transition core is also provided with a plurality of groups of transition holes corresponding to the connection through holes, and the connection through holes are positioned right ahead the transition holes along the positive rotation direction of the plug-in mechanism;

a through hole is formed in the middle of the cover cap, a connecting hole is coaxially formed in the end face, facing the cover cap, of the transition core, one end of the transition pipeline is connected and communicated with the connecting hole, the other end of the transition pipeline penetrates through the through hole and is connected and communicated with the opening end, away from the first movable cylinder, of the second movable cylinder, and a sealing ring is further arranged at the connection position of the transition pipeline and the second movable cylinder in a matched mode;

one end of the sub-body, which is far away from the connecting component, is matched with the connecting part of the transition pipeline and the second movable cylinder.

Compared with the prior art, the invention has the advantages that the encryption mechanism adopts quadruple encryption mainly based on a magnetic encryption mode, any one of the quadruple encryption modes cannot be decrypted by the plug-in mechanism, the plug-in mechanism cannot be communicated with the connecting mechanism, namely harmful fluid in the storage system cannot circulate, thereby achieving the purpose of encryption, butt joint and circulation, effectively preventing the occurrence of the situation that harmful gas leaks and generates a series of adverse effects due to the mistake of the utilization system and the storage system of a user, simultaneously, the quadruple encryption modes have more arrangement and combination modes, the user can disable the original storage connecting mechanism by changing the arrangement and combination mode of any one of the quadruple encryption modes, the arrangement and combination mode is simpler to replace, the user can carry out encryption modification according to the requirement of the user, in addition, the fourth encryption component takes magnetic attraction/repulsion as the principle basis, and the magnetism can not be obtained by visual observation, thereby greatly enhancing the difficulty of deciphering the encryption mode and preventing lawless persons from stealing the fluid in the storage system.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the plugging mechanism of the present invention.

Fig. 3 is a cross-sectional view of the plugging mechanism of the present invention.

Fig. 4 is a diagram of the connection means and the first decryption means according to the invention.

Fig. 5 is a diagram of the connection means and the second decryption means according to the invention.

Fig. 6 is a schematic structural view of a stop member of the present invention.

Fig. 7 is a schematic structural diagram of the encryption connecting device of the present invention.

Fig. 8 is a schematic view of the structure of the mounting case of the present invention.

Fig. 9 is a view of the mounting cover and the encryption mechanism of the present invention.

Fig. 10 is a view of the mounting case and the encryption mechanism of the present invention in combination.

Fig. 11 is a matching view of the first movable cylinder, the coaxial sleeve and the second movable cylinder of the invention.

FIG. 12 is a drawing showing the combination of the first movable encryption member, the fixed cylinder and the second encryption member according to the present invention.

Fig. 13 is a combination view of the fixed cylinder, the first movable cylinder and the first encryption member of the present invention.

Fig. 14 is a schematic structural diagram of a first encryption component of the present invention.

Fig. 15 is a view showing the combination of the fixed cylinder, the movable cylinder, and the fourth encryption member according to the present invention.

Fig. 16 is a schematic structural diagram of a fourth encryption component of the present invention.

Fig. 17 is a fitting view of the fixed cylinder, the second movable cylinder, and the locking member of the present invention.

Fig. 18 is a schematic structural view of the connection mechanism of the present invention.

Fig. 19 is a schematic structural view of a transition member of the present invention.

FIG. 20 is a cross-sectional view of a transition member of the present invention.

FIG. 21 is a cross-sectional mating view of a transition member and a transition member of the present invention.

Detailed Description

a preparation stage;

s1: connecting the plugging mechanism 100 with the utilization system;

the plug-in mechanism 100 comprises a connecting member 110, a first decryption member 120 and a second decryption member 130, wherein the connecting member 110 comprises a circulation pipe 111, one end of the circulation pipe 111 is a connecting end, the other end is provided with a circulation nozzle 112 in a matching way, the circulation nozzle 112 is used for connecting and communicating with a utilization system, the first decryption member 120 comprises a parent body 121, the parent body 121 is a circular cylinder body with openings at two ends, the parent body 121 is coaxially fixed at the connecting end of the circulation pipe 111, the second decryption member 130 comprises a child body 131 and an ejection spring 132, the child body 131 is a circular cylinder body with openings at two ends and coaxially arranged with the parent body 121, one end of the child body 131 is positioned in the circulation pipe 111, the other end of the child body 131 is positioned in the parent body 121, the ejection spring 132 is sleeved in a part of the circulation pipe 111 positioned between the child body 131 and the circulation nozzle 112, and the child body 131 is driven by elasticity, a limiting component 140 for limiting the daughter 131 to be ejected out of the parent body 121 is arranged between the daughter 131 and the parent body 121;

the user connects the flow-through nipple 112 to the utilization system;

s2: inserting the plugging mechanism 100 into the mounting housing 200;

the mounting cover shell 200 is fixed on the outer surface of the storage system through a fastener, the mounting cover shell 200 is of a circular cylinder structure with openings at two ends, a fixed cylinder 210 of the circular cylinder structure with openings at two ends is coaxially and fixedly arranged in the mounting cover shell 200, a movable cylinder I220 and a movable cylinder II 230 of the circular cylinder structure with openings at two ends are arranged in the fixed cylinder 210, the movable cylinder I220 and the movable cylinder II 230 are coaxially and movably sleeved in the fixed cylinder 210, and the movable cylinder I220 is positioned on one side of the movable cylinder II 230, which is far away from the storage system;

the encryption mechanism 300 is arranged in the installation cover 200, and the encryption mechanism 300 comprises a first encryption member 310, a second encryption member 320, a third encryption member, a fourth encryption member 330 and a locking member 340;

the user correspondingly inserts the plugging mechanism 100 into the first movable cylinder 220;

(II) a decryption stage;

s3: the fixed cylinder 210 is provided with a first encryption hole penetrating through the radial thickness of the fixed cylinder, and the movable cylinder 220 is provided with a second encryption hole penetrating through the radial thickness of the movable cylinder and communicated with the first encryption hole;

the first encryption member 310 is arranged between the fixed cylinder 210 and the movable cylinder 220, the first encryption member 310 comprises an encryption piece I, and the encryption piece I comprises a top rod I311, an encryption rod I312 and an encryption spring I313;

the outer circular surface of the parent body 121 is provided with a decryption lock tooth 122 matched with the first encryption member 310;

after the plugging mechanism 100 is inserted into the first movable cylinder 220, the decryption lock teeth 122 contact with the first encryption member 310 and push the whole first encryption member to move away from the axial center line of the first movable cylinder 220, and finally the first ejector rod 311 is wholly positioned in the second encryption hole, the first encryption rod 312 is wholly positioned in the first encryption hole, the first encryption member 310 is decrypted, and the first movable cylinder 220 can axially rotate around the first encryption member at the moment;

s4: the second encryption member 320 is arranged between the fixed cylinder 210 and the first movable cylinder 220, the second encryption member 320 comprises a trigger rod 322 and a trigger groove 321 arranged on the end face of the fixed cylinder 210, which is far away from the storage system, the trigger groove 321 can be sequentially divided into two sections along the forward rotation direction of the plugging mechanism 100, the two sections are respectively a trigger section and a rotating section, the distance between the trigger section and the center of the first movable cylinder 220 is gradually reduced along the forward rotation direction of the plugging mechanism 100, and the rotating section and the first movable cylinder 220 are coaxially arranged;

the outer circular surface of the first movable cylinder 220 is provided with an avoidance hole penetrating through the radial thickness of the first movable cylinder, the avoidance hole is close to the end surface of the first movable cylinder 220, which is far away from the second movable cylinder 230, one end of the trigger rod 322 is positioned in the avoidance hole, the other end of the trigger rod 322 is opposite to the trigger groove 321, and the end is provided with a linkage protrusion, the free end of which is positioned in the trigger groove 321 in a matching manner, when the first movable cylinder 220 rotates in accordance with the forward rotation direction of the plugging mechanism 100, the trigger rod 322 is enabled to move close to the axial center line of the first movable cylinder 220 through the matching of the linkage protrusion and the trigger section of the trigger groove 321, and when the linkage protrusion rotates forward to the rotating section of the trigger groove 321, the trigger rod 322 stops moving close to the axial;

the user rotates the plug-in mechanism 100 forward and pulls the first movable cylinder 220 to rotate forward synchronously, so that the trigger rod 322 moves close to the axial center line of the first movable cylinder 220, namely the trigger rod 322 contacts with the limiting member 140 and enables the limiting member 140 to move integrally close to the axial center line of the daughter 131, the limiting member 140 cancels the limitation on the daughter 131, the second encryption member 320 is decrypted, and the daughter 131 can be popped out of the mother body 121 but is not popped out at the moment;

s5: the third encryption member comprises a guide protrusion 231 arranged on the inner circular surface of the second movable cylinder 230, the extending direction of the guide protrusion 231 is parallel to the axial direction of the second movable cylinder 230, the outer circular surface of the sub-body 131 is provided with a guide groove 134 penetrating the axial length of the sub-body, and when the second encryption member 320 completes decryption, the guide protrusion 231 is positioned right ahead of the guide groove 134 rotating in the positive direction along the plug-in mechanism 100;

after the second encryption member 320 is decrypted, the plug-in mechanism 100 continues to rotate forward until the guide protrusion 231 and the guide groove 134 are positioned on the same straight line, the sub-body 131 is ejected from the main body 121 and positioned in the second movable cylinder 230 under the elastic force of the ejection spring 132, and the third encryption member is decrypted;

s6: the fixed cylinder 210 is provided with an encryption hole III/IV which penetrates through the radial thickness of the fixed cylinder, and the movable cylinder 230 is provided with an encryption hole V/VI which penetrates through the radial thickness of the movable cylinder and is coaxially arranged with and communicated with the encryption hole III/IV;

the fourth encryption member 330 is arranged between the fixed cylinder 210 and the movable cylinder 230, the fourth encryption member 330 comprises an encryption piece II and an encryption piece III, the encryption piece II comprises an encryption spring II 332 and an encryption rod II 331 made of magnetic materials, and the encryption piece III comprises an encryption spring III 335, an encryption rod III 334 and a push rod II 333 made of magnetic materials;

the outer circular surface of the sub-body 131 is further provided with a magnetic block 133 matched with the fourth encryption member 330, and the magnetic block 133 is divided into a first magnetic block for decrypting the second encryption part in a magnetic attraction manner and a second magnetic block for decrypting the third encryption part in a magnetic repulsion manner;

after the third component is decrypted and the whole sub-body 131 is positioned in the second movable cylinder 230, the magnetic block I enables the whole second encryption rod 331 to be positioned in the fifth encryption hole in a magnetic attraction mode, the magnetic block II enables the whole second ejector rod 333 to be positioned in the sixth encryption hole in a magnetic repulsion mode, the whole third encryption rod 334 is positioned in the fourth encryption hole, the fourth encryption component 330 is decrypted, and meanwhile, the second movable cylinder 230 can rotate around the self axial direction;

(III) a connection stage;

s7: the connecting mechanism 400 is arranged on one side of the second movable cylinder 230, which is far away from the first movable cylinder 220, and the connecting mechanism 400 comprises a connecting member 410 which is connected and communicated with the storage system and a transition member 420 which is connected and communicated with the second movable cylinder 230;

the plug-in mechanism 100 continues to rotate forwards and pulls the second movable cylinder 230 to rotate forwards synchronously, during the process of rotating forwards, the locking member 340 locks the sub-body 131 and limits the sub-body 131 to move along the axial direction of the sub-body, then the second movable cylinder 230 rotates forwards and pulls the transition member 420 to be communicated with the communicating member 410, and the chemical harmful fluid in the storage system flows into the sub-body 131 through the communicating member 410 and the transition member 420 and flows into the utilization system through the sub-body 131, the circulation pipeline 111 and the circulation connector 112.

The invention adopts the mechanical encryption mode to encrypt the circulation use process of the harmful fluid, and has the advantages that the encryption mechanism adopts quadruple encryption mainly adopting a magnetic encryption mode, any one of the quadruple encryption modes can not be decrypted by the plug-in mechanism, the plug-in mechanism can not be communicated with the connecting mechanism, namely the harmful fluid in the storage system can not circulate, thereby achieving the purpose of encryption butt joint circulation, effectively preventing the occurrence of the condition that harmful gas leaks and generates a series of adverse effects because a user mistakenly uses the system and the storage system, simultaneously, the quadruple encryption modes have more arrangement combination modes, the user can disable the connecting mechanism of the original storage device by changing any one of the quadruple encryption modes, the arrangement combination mode is simpler to replace, and the user can carry out encryption modification according to the self requirement, in addition, the fourth encryption component is based on the principle that magnetism attracts/repels each other, and magnetism cannot be obtained through visual observation, so that the difficulty of decoding the encryption mode is greatly enhanced, and fluid in the storage system is prevented from being stolen by lawless persons.

The butt joint device comprises a plug device for connecting with a utilization system such as welding utilizing harmful fluid such as acetylene and a ciphering connecting device for connecting with a storage system such as a storage tank for storing the harmful fluid such as acetylene.

The plug device comprises a plug mechanism 100 for connecting with a welding utilization system and the like, the plug mechanism 100 can be inserted into the encryption connecting device, and the plug mechanism 100 enables the encryption connecting device to decrypt and rotate in a forward direction.

The encryption connecting device comprises a mounting cover shell 200, an encryption mechanism 300 and a connecting mechanism 400, wherein the connecting mechanism 400 is mounted on the mounting cover shell 200, the connecting mechanism 400 is used for being connected and communicated with storage systems such as storage tanks, the encryption mechanism 300 is mounted in the mounting cover shell 200, the encryption mechanism 300 is matched with the plug-in mechanism 100, and the plug-in mechanism 100 is plugged in a quadruple encryption mode.

The user inserts the grafting mechanism 100 into the encryption mechanism 300, if the grafting mechanism 100 is matched with the encryption mechanism 300, the grafting mechanism 100 can be smoothly inserted into the encryption mechanism 300 and is connected and communicated with the connecting mechanism 400, fluid in storage systems such as storage tanks flows into utilization systems such as welding and the like through the connecting mechanism 400 and the grafting mechanism 100, if the grafting mechanism 100 is not matched with the encryption mechanism 300, the grafting mechanism 100 cannot be inserted into the encryption mechanism 100, namely, fluid in the storage systems such as the storage tanks cannot flow out, so that the aim of encrypted butt joint circulation is fulfilled, and the situation that harmful gas leaks and a series of adverse consequences are caused by the fact that the utilization systems and the storage systems are mistakenly used by the user is effectively prevented.

The plug-in mechanism 100 comprises a connecting member 110 for connecting with the utilization system, a first decryption member 120 and a second decryption member 130 corresponding to the encryption mechanism 300.

The connecting component 110 comprises a flow pipeline 111, one end of the flow pipeline 111 is a connecting end, the other end is provided with a flow connection nozzle 112 in a matching way, and the flow connection nozzle 112 is used for connecting and communicating with a utilization system.

The first decryption component 120 comprises a parent body 121, wherein the parent body 121 is a circular cylinder with two open ends, and the parent body 121 is coaxially fixed at the connecting end of the flow pipeline 111.

The second decryption member 130 includes a sub-body 131 and an ejection spring 132, the sub-body 131 is a circular cylinder with two open ends and is coaxially disposed with the main body 121, one end of the sub-body 131 is located in the circulation pipe 111, the other end is located in the main body 121, the ejection spring 132 is sleeved in the part of the circulation pipe 111 located between the sub-body 131 and the circulation nozzle 112, and the elastic force of the ejection spring 132 drives the sub-body 131 to move away from the circulation nozzle 112 and eject from the main body 121.

Be provided with between daughter 131 and the parent 121 and be used for restricting daughter 131 by the internal stop component 140 who pops out of parent 121, specifically, daughter 131's outside is provided with the spacing groove, parent 121's outside is seted up and is run through its radial thickness and with the spacing hole of spacing groove switch-on, stop component 140 include stopper 141, spacing spring 142, stopper 141 sets up in the spacing groove and its part is located the spacing hole, spacing spring 142 sets up between spacing groove bottom and stopper 141 and the elasticity of spacing spring 142 drives stopper 141 and does the motion of keeping away from the spacing groove bottom.

When the external force drives the stopper 141 to move close to the bottom of the stopper groove and finally the stopper 141 is entirely located in the stopper groove, the sub-body 131 is ejected from the main body 121 under the driving of the elastic force of the ejection spring 132.

A fastener is arranged between the mounting cover 200 and the storage system, the mounting cover 200 is fixed on the outer surface of the storage system through the fastener, and the mounting cover 200 is a circular cylinder structure with two open ends.

The mounting cover 200 is internally coaxially and fixedly provided with a fixed cylinder 210 which is of a circular cylinder structure with openings at two ends, a first movable cylinder 220 and a second movable cylinder 230 which are of a circular cylinder structure with openings at two ends are arranged in the fixed cylinder 210, the first movable cylinder 220 and the second movable cylinder 230 are coaxially and movably sleeved in the fixed cylinder 210, and the first movable cylinder 220 is positioned on one side of the second movable cylinder 230, which deviates from the storage system.

Preferably, a coaxial sleeve 240 for keeping coaxial arrangement of the fixed cylinder 210, the first movable cylinder 220 and the second movable cylinder 230 is further arranged among the three, the coaxial sleeve 240 is a circular cylinder structure formed by two sets of sleeves with semicircular cylinder structures, the coaxial sleeve 240 is coaxially and fixedly installed in the fixed cylinder 210, the coaxial sleeve 240 is arranged between the first movable cylinder 220 and the second movable cylinder 230, the first movable cylinder 220/the second movable cylinder 230 and the coaxial sleeve 240 are movably connected, and the rotation between the first movable cylinder 220 and the second movable cylinder 230 is not interfered with each other; the fixed barrel 210, the first movable barrel 220 and the second movable barrel 230 can be always coaxially arranged through the coaxial sleeve 240, so that the coaxiality deviation among the fixed barrel 210, the first movable barrel 220 and the second movable barrel 230 caused by the influence of external accidental factors is prevented, and the influence on the subsequent insertion process of the plugging mechanism 100 is avoided.

The encryption mechanism 300 is disposed in the mounting case 200, and the encryption mechanism 300 includes a first encryption member 310, a second encryption member 320, a third encryption member and a fourth encryption member 330.

The first encryption member 310 is disposed between the fixed cylinder 210 and the first movable cylinder 220, and the first encryption member 310 includes a first encryption member.

The fixed cylinder 210 is provided with a first encryption hole penetrating through the radial thickness of the fixed cylinder, a fastening bolt is arranged at an orifice of the first encryption hole, which deviates from the first movable cylinder 220, the first movable cylinder 220 is provided with a second encryption hole penetrating through the radial thickness of the first encryption hole and communicated with the first encryption hole, and a first built-in step is arranged at an orifice of the second encryption hole, which faces the axial center line of the first movable cylinder 220.

The first encryption piece comprises a first ejector rod 311, a first encryption rod 312 and a first encryption spring 313, the first ejector rod 311 is arranged in the second encryption hole, a decryption protrusion is arranged at one end, away from the fixed cylinder 210, of the first ejector rod 311, the free end of the decryption protrusion penetrates through the inner circular surface of the first built-in step and is located in the first movable cylinder 220, the first encryption rod 312 is arranged in the first encryption hole, one end, away from the fastening bolt, of the first encryption rod 312 is located in the second encryption hole and is in contact with the first ejector rod 311, one end of the first encryption spring 313 is fixedly connected with the fastening bolt, the other end of the first encryption spring 313 is fixedly connected with the first encryption rod 312, and the first encryption rod 312/the first ejector rod 311 are driven by elasticity of the first encryption spring 313 to move close to the.

The first encryption members are arranged in a plurality of groups along the axial direction of the fixed cylinder 210, and the first encryption members 310 are arranged in a plurality of groups along the circumferential direction of the fixed cylinder 210.

The outer circumferential surface of the parent body 121 is provided with a decryption locking tooth 122 matched with the first encryption member 310.

The user inserts the plug-in mechanism 100 into the first movable cylinder 220 after the decryption lock teeth 122 and the first encryption member 310 are positioned on the same straight line, the decryption lock teeth 122 contact with the decryption protrusion and push the first push rod 311 to move away from the axial center line of the first movable cylinder 220, finally, the first push rod 311 is integrally positioned in the second encryption hole, the first encryption rod 312 is integrally positioned in the first encryption hole, the first encryption member 310 is decrypted, and at the moment, the first movable cylinder 220 can rotate around the axial direction of the first encryption member.

The encryption mode of the first encryption member 310 can be changed by changing the number of the first encryption members 310, changing the number and the spacing of the first encryption members in a group of the first encryption members 310 and changing the distance of the first encryption rods 312 in the second encryption holes, and the decryption lock teeth 122 matched with the first encryption members 310 are changed accordingly.

The second encryption member 320 is disposed between the first fixed cylinder 210 and the first movable cylinder 220, and the second encryption member 320 includes a trigger rod 322 and a trigger slot 321 disposed on an end surface of the first fixed cylinder 210 facing away from the storage system.

The triggering groove 321 can be sequentially divided into two sections along the forward rotation direction of the plugging mechanism 100, the two sections are respectively a triggering section and a rotating section, the distance between the triggering section and the circle center of the first movable cylinder 220 decreases progressively along the forward rotation direction of the plugging mechanism 100, and the rotating section and the first movable cylinder 220 are coaxially arranged.

The outer circular surface of the first movable cylinder 220 is provided with an avoiding hole penetrating through the radial thickness of the first movable cylinder, the avoiding hole is close to the end surface of the first movable cylinder 220 deviating from the second movable cylinder 230, one end of the trigger rod 322 is located in the avoiding hole, the other end of the trigger rod 322 is right opposite to the trigger groove 321, the linkage protrusion with the free end located in the trigger groove 321 is arranged at the end in a matching mode, when the first movable cylinder 220 rotates in the same direction as the forward rotation of the plugging mechanism 100, the trigger rod 322 is enabled to move close to the axial center line of the first movable cylinder 220 through the matching of the linkage protrusion and the trigger section of the trigger groove 321, and when the linkage protrusion rotates forward to the rotating section of the trigger groove 321, the trigger rod 322 stops moving close to the axial center line of the first movable.

The second encryption members 320 are arranged in a plurality of groups in an array along the circumferential direction of the fixed cylinder 210.

The limiting members 140 are correspondingly provided with a plurality of groups.

After the first encryption member 310 is decrypted, the user rotates the plug-in mechanism 100 forward and pulls the first movable cylinder 220 to rotate forward synchronously, so that the trigger rod 322 moves close to the axial center line of the first movable cylinder 220, that is, the trigger rod 322 passes through the limiting hole and contacts with the limiting block 141, finally the trigger rod 322 pushes the limiting block 141 to move close to the bottom of the limiting groove and the limiting block 141 is integrally located in the limiting groove, the second encryption member 320 is decrypted, and the sub-body 131 can be ejected from the main body 121 but is not ejected yet.

The encryption manner of the second encryption member 320 can be changed by changing the number and installation position of the second encryption member 320.

The third encryption member comprises guide protrusions 231 arranged on the inner circular surface of the second movable cylinder 230, the extending direction of the guide protrusions 231 is parallel to the axial direction of the second movable cylinder 230, and a plurality of groups of the guide protrusions 231 are arranged in an array along the circumferential direction of the second movable cylinder 230.

The outer circumferential surface of the sub-body 131 is provided with a guide groove 134 penetrating the axial length of the sub-body, and when the second encryption member 320 completes decryption, the guide protrusion 231 is located right in front of the guide groove 134 rotating forward along the plug-in mechanism 100, and the guide groove 134 is correspondingly provided with a plurality of groups.

After the second encryption member 320 is decrypted, the plug mechanism 100 continues to rotate forward until the guide protrusion 231 and the guide slot 134 are aligned, the sub-body 131 is ejected from the main body 121 and located in the second movable cylinder 230 under the elastic force of the ejection spring 132, and the third encryption member is decrypted.

The encryption manner of the third encryption member can be changed by changing the number of arrays of the guide protrusions 231.

The fourth encryption component 330 is disposed between the fixed cylinder 210 and the movable cylinder 230, and the fourth encryption component 330 includes an encryption element two and an encryption element three.

The fixed cylinder 210 is provided with an encryption hole III/IV penetrating through the radial thickness of the fixed cylinder, a position of an orifice of the encryption hole III/IV, which deviates from the movable cylinder II 230, is provided with a limit bolt in a matching way, the movable cylinder II 230 is provided with an encryption hole V/VI penetrating through the radial thickness of the movable cylinder II and coaxially arranged and communicated with the encryption hole III/IV, and a position of the orifice of the encryption hole V/VI, which deviates from the fixed cylinder 210, is provided with a built-in step II.

The second encryption piece comprises a second encryption spring 332 and a second encryption rod 331 made of a magnetic material, the second encryption rod 331 is arranged in the fifth encryption hole, the end part of the second encryption rod 331, facing the fixed cylinder 210, is positioned in the third encryption hole, a limiting step is arranged at the end of the second encryption rod 331, the limiting step and the third/fifth encryption hole are in sliding guide fit, the second encryption spring 332 is sleeved outside the second encryption rod 331, one end of the second encryption spring 332 is fixedly connected with the limiting step, the other end of the second encryption spring 332 is fixedly connected with the second built-in step arranged in the fifth encryption hole, and the second encryption rod 331 is made to move away from the axial center line of the second movable cylinder 230 by the elasticity of the second encryption spring 332.

The third encryption piece comprises a third encryption spring 335, a third encryption rod 334 and a second ejector rod 333 made of magnetic materials, the second ejector rod 333 is arranged in the sixth encryption hole, the third encryption rod 334 is arranged in the fourth encryption hole, the end, facing the second movable cylinder 230, of the third encryption rod is located in the sixth encryption hole and is in contact with the second ejector rod 333, one end of the third encryption spring 335 is fixedly connected with a limiting bolt arranged in the fourth encryption hole, the other end of the third encryption rod is fixedly connected with the third encryption rod 334, and the third encryption rod 334 moves close to the axial center line of the second movable cylinder 230 due to the elastic force of the third encryption spring 335.

The second/third encryption members are arranged in groups at intervals along the axial direction of the fixed cylinder 210, and the fourth encryption members 330 are arranged in groups along the circumferential direction of the fixed cylinder 210.

The outer circular surface of the sub-body 131 is further provided with a magnetic block 133 matched with the fourth encryption member 330, and the magnetic block 133 is divided into a first magnetic block for decrypting the second encryption member in a magnetic attraction manner and a second magnetic block for decrypting the third encryption member in a magnetic repulsion manner.

After the third component is decrypted and the whole sub-body 131 is positioned in the second movable cylinder 230, the magnetic block I enables the whole second encryption rod 331 to be positioned in the fifth encryption hole in a magnetic attraction mode, the magnetic block II enables the whole second ejector rod 333 to be positioned in the sixth encryption hole in a magnetic repulsion mode, the whole third encryption rod 334 is positioned in the fourth encryption hole, the fourth encryption component 330 is decrypted, and meanwhile, the second movable cylinder 230 can rotate around the self axial direction.

The encryption mode of the fourth encryption member 330 can be changed by changing the number of arrays of the fourth encryption member 330, changing the number and arrangement of the encryption pieces two/three in a group of the fourth encryption member 330, changing the distance of the encryption rod two 331 in the encryption hole three, and changing the distance of the encryption rod three 334 in the encryption hole six.

More specifically, in order to prevent the plug mechanism 100 from being displaced along the axial direction of the fixed cylinder 210 due to the influence of external factors after the plug mechanism 100 is inserted and the encryption mechanism 300 is completely decrypted, which may cause the fluid in the storage system to leak into the movable cylinder two/one through the connection mechanism 400 and further leak into the outside, in order to avoid this situation, the encryption mechanism 300 further includes a locking member 340, and the locking member 340 is configured to lock the sub-body 131 into the movable cylinder two 230 after the encryption mechanism 300 is completely decrypted.

The end face of the second movable cylinder 230, which is far away from the first movable cylinder 220, is provided with an avoidance groove which penetrates through the radial thickness of the first movable cylinder.

The locking member 340 comprises an insertion rod 342 and a locking groove 341 arranged on the end face of the fixed cylinder 210, which is far away from the second encryption member 320, the locking groove 341 is sequentially divided into two sections along the forward rotation direction of the insertion mechanism 100, the two sections are respectively a locking section and a coaxial section, the distance between the locking section and the axial center line of the second movable cylinder 230 decreases progressively along the forward rotation direction of the insertion mechanism 100, and the coaxial section and the second movable cylinder 230 are coaxially arranged.

One end of the inserted rod 342 is positioned in the avoiding groove, the other end of the inserted rod 342 is right opposite to the locking groove 341, the end is provided with a traction protrusion with a free end positioned in the locking groove 341, when the second movable barrel 230 rotates in the same direction with the forward rotation of the plugging mechanism 100, the inserted rod 342 moves close to the axial center line of the second movable barrel 230 through the matching of the traction protrusion and the locking section of the locking groove 341, and when the traction protrusion rotates forward to the coaxial section of the locking groove 341, the inserted rod 342 stops moving close to the axial center line of the second movable barrel 230.

The locking members 340 are arranged in several groups in an array along the circumferential direction of the fixed cylinder 210.

The outer circumferential surface of the sub-body 131 is provided with slots corresponding to the locking members 340, and the slots are correspondingly provided with a plurality of groups.

After the fourth encryption member 330 is decrypted, the user continues to rotate the plug-in mechanism 100 forward and pulls the second movable cylinder 230 to rotate forward synchronously, so that the plug rod 342 moves close to the axial center line of the second movable cylinder 230, and finally the plug rod 342 is inserted into the slot, and at this time, the sub-body 131 is restricted from moving along the axial direction of the fixed cylinder 210.

The connecting mechanism 400 is arranged on the side of the second movable cylinder 230, which is far away from the first movable cylinder 220, and the connecting mechanism 400 comprises a connecting member 410 which is connected and communicated with the storage system and a transition member 420 which is connected and communicated with the second movable cylinder 230.

The connection member 410 includes a connection cover case and a connection core 411, the connection cover case is a shell structure with an opening at one end, a closed end and a matched opening end, the cover case is provided with a connection nozzle at the closed end, and the connection nozzle is used for being connected and connected with the storage system.

The connecting core 411 is arranged in the connecting housing, the connecting core 411 is a circular cylinder with two open ends, the connecting core 411 is coaxially fixed in the connecting housing, and a plurality of assembling through holes 412 are further formed in the outer circular surface of the connecting core 411 in an array mode.

The transition member 420 includes a transition core 421 and a transition pipeline 422, the transition core 421 is a circular cylinder structure with two closed ends, the transition core 421 is disposed in the connection core 411 and forms a sealed rotation fit therebetween, the outer circular surface of the transition core 421 is further provided with a plurality of sets of transition holes 423 corresponding to the connection holes 412, and the connection holes 412 are located right ahead of the transition holes 423 along the forward rotation direction of the plugging mechanism 100.

The middle position of the cover cap is provided with a through hole, the end face of the transition core 421 facing the cover cap is coaxially provided with a connecting hole, one end of the transition pipeline 422 is connected and communicated with the connecting hole, the other end of the transition pipeline passes through the through hole and is connected and communicated with the opening end of the second movable cylinder 230 deviating from the first movable cylinder 220, and the connecting position of the transition pipeline 422 and the second movable cylinder 230 is further provided with a sealing ring in a matching manner.

The end of the sub-body 131, which faces away from the connecting member 110, is matched with the connecting part of the transition pipe 422 and the second movable cylinder 230.

When the sub-body 131 is wholly positioned in the second movable cylinder 230, one end of the sub-body 131, which is far away from the connecting member 110, is connected and communicated with the transition pipeline 422, then in the process that the sub-body 131 rotates forwards and is locked by the locking member 340, the transition member 420 rotates forwards synchronously, the connecting hole 412 is not connected with the transition hole 423, then the sub-body 131 rotates forwards continuously until the connecting hole 412 is connected and communicated with the transition hole 423, at the moment, the circulation in the storage system can flow into the sub-body 131 through the connecting nozzle, the connecting casing, the connecting hole 412, the transition hole 423 and the transition pipeline 422, and flows into the utilization system through the sub-body 131, the circulation pipeline 111 and the circulation connecting nozzle 112.

Claims

1. The safe conveying method of the high-risk chemical fluid comprises the following steps:

a preparation stage;

s1: connecting the plug device with a utilization system; the encryption connecting device is connected with a storage system for storing high-risk chemical fluid;

the plug-in device comprises a plug-in mechanism for connecting with the utilization system, the plug-in mechanism can be inserted into the encryption connecting device, and the plug-in mechanism enables the encryption connecting device to decrypt the rotation of the encryption connecting device to be positive rotation;

the encryption connecting device comprises a mounting housing, an encryption mechanism and a connecting mechanism, wherein the connecting mechanism is mounted on the mounting housing and is used for being connected and communicated with the storage system, the encryption mechanism is mounted in the mounting housing and is matched with the plug-in mechanism and is plugged with the plug-in mechanism in a quadruple encryption mode;

the user connects the circulation nozzle with the utilization system;

s2: inserting the plugging mechanism into the mounting housing;

(II) a decryption stage;

(III) a connection stage;

2. The safe conveying method of high-risk chemical fluid according to claim 1, wherein the sub body is provided with a limiting groove at the outer part thereof, the parent body is provided with a limiting hole penetrating through the radial thickness thereof and communicated with the limiting groove at the outer part thereof, the limiting member comprises a limiting block and a limiting spring, the limiting block is arranged in the limiting groove and a part of the limiting block is positioned in the limiting hole, the limiting spring is arranged between the bottom of the limiting groove and the limiting block, and the elastic force of the limiting spring drives the limiting block to move away from the bottom of the limiting groove;

3. The safety conveying method for the high-risk chemical fluid according to claim 1 or 2, wherein a fastening bolt is arranged at a port of the first encryption hole, which is far away from the first movable cylinder, and a built-in step I is arranged at a port of the second encryption hole, which is far towards the axial center line of the first movable cylinder;

the first ejector rod is arranged in the first encryption hole, one end, deviating from the fixed cylinder, of the first ejector rod is provided with a decryption protrusion, the free end of the decryption protrusion penetrates through the inner circular surface of the first built-in step and is located in the first movable cylinder, the first encryption rod is arranged in the first encryption hole, one end, deviating from the fastening bolt, of the first encryption rod is located in the second encryption hole and is in contact with the first ejector rod, one end of the first encryption spring is fixedly connected with the fastening bolt, the other end of the first encryption rod is fixedly connected with the first encryption rod, and the first encryption rod/the first ejector rod is driven by elasticity of the first encryption rod to move close to the axial center line of.

4. The safe conveying method of high-risk chemical fluid according to claim 3, wherein the first encryption members are arranged in a plurality of groups along the axial direction of the fixed cylinder in an array manner, the first encryption members are arranged in a plurality of groups along the circumferential direction of the fixed cylinder in an array manner, and the decryption locking teeth are correspondingly arranged in a plurality of groups;

5. The safety conveying method for the high-risk chemical fluid according to claim 4, wherein a limiting bolt is mounted at a position, away from the orifice of the movable cylinder II, of the third/fourth encryption hole in a matched manner, and a built-in step II is arranged at a position, away from the orifice of the fixed cylinder, of the fifth/sixth encryption hole;

the second encryption rod is arranged in the fifth encryption hole, the end part of the second encryption rod, facing the fixed cylinder, is positioned in the third encryption hole, a limiting step is arranged at the end of the second encryption rod, sliding guide fit is formed between the limiting step and the third/fifth encryption hole, the second encryption spring is arranged outside the second encryption rod, one end of the second encryption spring is fixedly connected with the limiting step, the other end of the second encryption spring is fixedly connected with the second built-in step arranged in the fifth encryption hole, and the second encryption rod moves away from the axial center line of the second movable cylinder due to the elasticity of the second encryption spring.

6. The safe conveying method of high-risk chemical fluid according to claim 5, wherein the second ejector rod is arranged in the encryption hole six, the third encryption rod is arranged in the encryption hole four, the end part, facing the second movable cylinder, of the third encryption rod is positioned in the encryption hole six and is in contact with the second ejector rod, one end of the third encryption spring is fixedly connected with a limiting bolt arranged in the encryption hole four, the other end of the third encryption spring is fixedly connected with the third encryption rod, and the third encryption rod moves close to the axial center line of the second movable cylinder due to the elastic force of the third encryption spring;

7. The safe conveying method of high-risk chemical fluid according to claim 6, wherein the locking member is used for locking the sub-body into the second movable cylinder after the encryption mechanism is completely decrypted, and an avoiding groove penetrating through the radial thickness of the end face of the second movable cylinder, which is far away from the first movable cylinder, is formed in the end face of the second movable cylinder;

the locking member comprises an insertion rod and a locking groove arranged on the end face of the fixed barrel, which deviates from the second encryption member, the locking groove is sequentially divided into two sections along the positive rotation direction of the insertion mechanism and is respectively a locking section and a coaxial section, the distance between the locking section and the two axial center lines of the movable barrel decreases progressively along the positive rotation direction of the insertion mechanism, and the coaxial section and the movable barrel are coaxially arranged.

8. The safe conveying method of high-risk chemical fluid according to claim 7, wherein one end of the inserted rod is positioned in the avoiding groove, the other end of the inserted rod is opposite to the locking groove, and the other end of the inserted rod is provided with a traction bulge of which the free end is positioned in the locking groove;

9. The safe transportation method of high-risk chemical fluid according to claim 1, wherein the connection means comprises a connection cover case and a connection core, the connection cover case is a shell structure with one open end and one closed end, the open end is matched with the cover case, the closed end of the connection cover case is provided with a connection nozzle, and the connection nozzle is used for connecting and connecting with a storage system;

the switch-on core is arranged in the switch-on housing, the switch-on core is a circular cylinder with openings at two ends, the switch-on core is coaxially fixed in the switch-on housing, and a plurality of assembly through holes are further formed in the outer circular surface of the switch-on core in an array mode.

10. The safe conveying method of high-risk chemical fluid according to claim 9, wherein the transition member comprises a transition core and a transition pipeline, the transition core is a circular cylinder structure with two closed ends, the transition core is arranged in the connection core, a sealed rotation fit is formed between the transition core and the connection core, a plurality of groups of transition holes corresponding to the connection holes are further arranged on the outer circular surface of the transition core, and the connection holes are positioned right ahead of the transition holes along the positive rotation direction of the plug-in mechanism;