CN112879801A - Switch valve for liquefied gas cylinder with private-dismantling prevention effect - Google Patents

Switch valve for liquefied gas cylinder with private-dismantling prevention effect Download PDF

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Publication number
CN112879801A
CN112879801A CN202110229344.XA CN202110229344A CN112879801A CN 112879801 A CN112879801 A CN 112879801A CN 202110229344 A CN202110229344 A CN 202110229344A CN 112879801 A CN112879801 A CN 112879801A
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China
Prior art keywords
valve body
groove
hole
unlocking
unblock
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Granted
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CN202110229344.XA
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Chinese (zh)
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CN112879801B (en
Inventor
孔令坤
翟亚勇
朱文兵
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Jiangsu Minnuo Special Equipment Co ltd
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Jiangsu Minnuo Special Equipment Co ltd
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Priority to CN202110229344.XA priority Critical patent/CN112879801B/en
Publication of CN112879801A publication Critical patent/CN112879801A/en
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Publication of CN112879801B publication Critical patent/CN112879801B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The utility model relates to a switching valve for liquefied gas steel cylinder with prevent privately tearing effect, it includes the valve body of vertical setting, the bottom fixed connection of valve body is on the steel cylinder and communicate with each other rather than the inner chamber, the top end opening of valve body just communicates with each other with the sprue, the valve body is equipped with the dwang outward, the dwang extends to in the sprue and fixed cover is equipped with the thread piece, the circumference lateral wall of thread piece and the lateral wall threaded connection of sprue, it is equipped with the shutoff cover to be located the thread piece and rotate the cover on the dwang towards valve body bottom one side, the shutoff cover is hugged closely with the lateral wall of sprue, the diapire of shutoff cover is opened along its axis direction has the sliding tray, the top of sliding tray is sealed and the bottom is sealed through the shutoff piece, the sliding tray communicates with each other with the circumference lateral wall of shutoff cover, the sliding tray is interior slip had the sliding tray, the one side of sliding tray dorsad shutoff cover axis is opened. This application has the advantage that reduces the user and dismantle the ooff valve possibility privately.

Description

Switch valve for liquefied gas cylinder with private-dismantling prevention effect
Technical Field
The utility model relates to a field of liquefied gas steel bottle especially relates to a ooff valve for liquefied gas steel bottle with prevent privately tearing open effect.
Background
The cylinder is a bottle-shaped container for containing permanent gas, liquefied gas or mixed gas, and can be used for storing high-pressure oxygen, coal gas, liquefied petroleum gas and the like.
Chinese patent No. CN202001620U discloses a switch valve for a high-pressure gas cylinder, which comprises a valve body, wherein the bottom of the valve body is provided with a valve base, the periphery of the valve base is provided with external threads, and the valve base is connected to the cylinder through the external threads; the valve body is internally provided with a main flow passage, the valve body is radially communicated with a filling port communicated with the main flow passage, the top of the main flow passage is provided with an opening, the inner wall of the main flow passage is provided with internal threads, and the position of the valve body relative to the top of the main flow passage is connected with a control rod through the internal threads.
Because valve body and steel bottle, valve body and control lever all pass through threaded connection, consequently the user is at the in-process that uses the gas in the steel bottle, can dismantle foretell ooff valve privately, leads to the gas in the steel bottle to spill, and the gas that spills probably has toxicity, easily fires or pollutes the atmospheric environment easily, consequently has obvious not enough.
Disclosure of Invention
In order to improve the problem that the user can dismantle the ooff valve privately, this application provides a ooff valve for liquefied gas steel cylinder with prevent privately tearing open effect.
The application provides a switching valve for liquefied gas steel cylinder with prevent privately tearing effect adopts following technical scheme:
the utility model provides a switching valve for liquefied gas steel cylinder with prevent privately tearing effect, includes the valve body of vertical setting, the bottom fixed connection of valve body just communicates with each other rather than the inner chamber on the steel bottle, the open-top of valve body just communicates with each other with the sprue, the valve body is equipped with the dwang outward, the dwang extends to in the sprue and fixed cover is equipped with the thread piece, the circumference lateral wall of thread piece and the lateral wall threaded connection of sprue rotate on the dwang that is located thread piece towards valve body bottom one side and overlap and be equipped with the shutoff cover, the shutoff cover is hugged closely with the lateral wall of sprue, one end threaded connection that the dwang is located the sprue has the spacing bolt that is used for carrying out the bearing to the diapire of shutoff cover, the diapire of shutoff cover is opened along its axis direction has the sliding groove, the top of sliding groove is sealed and the bottom is sealed through the closure block, the sliding, the sliding groove is internally provided with a sliding block in a sliding manner, one side of the sliding block, which faces away from the axis of the plugging sleeve, is provided with a containing hole, a bolt slides in the containing hole, a pressure spring is supported between the bolt and the hole bottom of the containing hole, and the inner wall of the valve body is provided with an inserting hole for inserting the bolt.
Through adopting above-mentioned technical scheme, the steel bottle is in normal use, and operating personnel rotates the dwang and drives the screw thread piece and rotate, and screw thread piece and spacing bolt cooperation drive the shutoff cover and remove, and the in-process that the shutoff cover reciprocated can seal the filling mouth or open the filling mouth to this after gas uses up in the steel bottle, replenishment that can be timely. In the use, the bolt is inserted and is established in the spliced eye under the effect of pressure spring thrust to this in-process that the shutoff cover removed, the sliding block that is used for holding the bolt also slides in the sliding groove, and seals the bottom in sliding groove through the sealing block, thereby has carried out the restriction to the range of movement of shutoff cover, and the shutoff cover can't shift out the valve body, is favorable to reducing the possibility that the user detached the ooff valve privately.
Optionally, the valve body is further provided with a tamper assembly for pushing the plug pin back into the accommodating hole, the tamper assembly comprises a locking portion and an unlocking portion, the locking part comprises a fixed block connected on the outer side wall of the valve body, one side of the fixed block back to the valve body is provided with an unlocking hole, the side wall of the unlocking hole is provided with a ring-shaped transition groove, one side of the transition groove facing the valve body is provided with a second unlocking groove along the direction close to the valve body, a first unlocking groove is formed in one side, back to the valve body, of the transition groove along the direction far away from the valve body, the first unlocking groove and the second unlocking groove are arranged around the axis of the unlocking hole in a staggered mode, the first unlocking groove is communicated with one side of the fixed block back to the valve body, the inserting hole extends to the fixed block and is communicated with the second unlocking groove, the first unlocking groove, the second unlocking groove and the plug hole are communicated, and an unlocking pin sliding in the plug hole is supported at one end of the plug pin, which is back to the bottom of the accommodating hole; the unlocking part comprises an unlocking rod which is inserted into the unlocking hole and is in running fit with the unlocking hole, a pushing block which is used for pushing the unlocking pin to slide in the inserting hole is fixedly connected to the outer side wall of the unlocking rod, the pushing block is in running fit with the first unlocking groove and the second unlocking groove respectively, and the pushing block is in running fit with the transition groove.
By adopting the technical scheme, parts in the valve body may need to be replaced after being used for a long time, a user needs to deliver the steel cylinder to a professional worker, and the worker unlocks the switch valve by using the unlocking part matched with the locking part;
the staff inserts the unblock pole in the unblock hole, after the ejector pad moved to in the aqueduct from first unblock groove, rotated the unblock pole certain angle, continued to push the unblock pole, the ejector pad pushed the second unblock inslot from the aqueduct. The ejector pad will release the lockpin and push in the spliced eye from the second unlocking groove, and release the lockpin and push the bolt into the accommodation hole completely, and the face that the lockpin and bolt are hugged closely at this moment flushes in the lateral wall that the shutoff cover is hugged closely with the sprue, and under this condition, the staff can take out the valve body with the part in the valve body.
Optionally, the cross sections of the sliding block and the sliding groove are arranged in a dovetail shape.
Through adopting above-mentioned technical scheme, the swallow-tail shape sets up and plays limiting displacement to the sliding of sliding block in the groove that slides, has reduced sliding block and has taken place the slope, leads to the unable possibility of inserting in the spliced eye smoothly of bolt.
Optionally, a guide groove is formed in the side wall of the main flow passage at a position opposite to the plug pin, the guide groove is parallel to the length direction of the main flow passage, one end of the guide groove is communicated with the plug hole, and the other end of the guide groove extends to the top surface of the valve body.
By adopting the technical scheme, when an installer installs the plugging sleeve into the valve body, one end of the plug pin is inserted into the guide groove and slides along the length direction of the plug pin, when the plug pin slides to the bottom end of the guide groove, one end of the plug pin is inserted into the plug hole under the action of the pressure spring, so that the positioning of the plug pin and the plug hole is realized, and the plug pin can be smoothly inserted into the plug hole during installation. Meanwhile, due to the arrangement of the guide groove, when a specific worker dismantles the switch valve, the worker can take out the part from the valve body only by leveling the surface of the inserted pin, which is tightly attached to the unlocking pin, with the groove bottom of the guide groove.
Optionally, an annular sealing groove is formed in the outer side wall of the plugging sleeve, an O-shaped ring is placed in the sealing groove, and the O-shaped ring is tightly attached to the side wall of the main flow channel.
Through adopting above-mentioned technical scheme, O type circle has improved the sealing performance between shutoff cover and the valve body to the possibility that the gas in the steel bottle spills between shutoff cover and the valve body has been reduced.
Optionally, the two push blocks are symmetrically arranged about the axis of the unlocking rod.
Through adopting above-mentioned technical scheme, the ejector pad is provided with two to this bolt also corresponds and is provided with two, thereby has improved the locking degree between shutoff cover and the valve body.
Optionally, the insertion hole includes a first insertion hole and a second insertion hole which are coaxially arranged, the second insertion hole is located at one end of the first insertion hole facing the valve body, the diameter of the second insertion hole is larger than that of the first insertion hole, and the unlocking pin is assembled with the insertion hole in shape.
Through adopting above-mentioned technical scheme, first jack and second jack are the echelonment and set up and have realized spacingly to the release pin to reduce and know the lockpin under the effect of pressure spring thrust, the tip removes to crossing in the aqueduct, thereby leads to the ejector pad can't be at the possibility of crossing the aqueduct and rotating.
Optionally, the unlocking rod and the unlocking hole are arranged in a gap.
Through adopting above-mentioned technical scheme, the clearance sets up and makes that the staff can be more smooth and easy inserts the unblock pole in the unblock hole and rotate.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the use process, the plug pin is inserted into the plug hole under the action of the thrust of the pressure spring, so that in the moving process of the plugging sleeve, the sliding block for accommodating the plug pin also slides in the sliding groove, and the bottom end of the sliding groove is sealed by the sealing block, so that the moving range of the plugging sleeve is limited, the plugging sleeve cannot move out of the valve cover, and the possibility of the user to dismount the switch valve privately is reduced;
2. when the ooff valve need be maintained, the user need deliver the steel bottle for professional staff, and the staff uses the unblock portion that matches with locking portion to unblock the ooff valve, and the user does not have the unblock portion, consequently is difficult to realize dismantling the ooff valve privately.
Drawings
FIG. 1 is a schematic structural diagram for embodying the present application;
FIG. 2 is a cross-sectional view of an occluding sheath used in an embodiment of the present application;
FIG. 3 is a cross-sectional view of an unlocking pin used in embodiments embodying the present application;
fig. 4 is a cross-sectional view of a skid used to embody embodiments of the present application.
Fig. 5 is a schematic structural diagram of a push block used for embodying the embodiment of the present application.
Description of reference numerals: 1. a valve body; 11. a guide groove; 12. a main flow channel; 2. filling the opening; 3. sealing the cover; 41. rotating the rod; 42. a thread block; 43. plugging the sleeve; 431. a sliding groove; 432. a sealing groove; 44. a limit bolt; 45. sealing blocks; 46. a sliding block; 461. an accommodation hole; 47. a bolt; 48. a pressure spring; 51. a fixed block; 511. unlocking the hole; 512. a transition groove; 513. a first unlocking slot; 514. a second unlocking slot; 515. a first jack; 516. a second jack; 52. releasing the lock pin; 61. an unlocking lever; 62. a push block; 7. an O-shaped ring; 8. a handle.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a liquefied gas is ooff valve for steel cylinder with prevent privately tearing effect. Referring to fig. 1 and 2, the switching valve for a liquefied gas cylinder having an anti-tamper effect includes a valve body 1, a rotating rod 41, a thread block 42, a plugging sleeve 43, and a stopper bolt 44.
Referring to fig. 2, the valve body 1 is vertically arranged, a main flow passage 12 is arranged in the valve body 1, and the valve body 1 is further communicated with a filling opening 2 communicated with the main flow passage 12. The bottom welding of valve body 1 is on the steel bottle and communicates with each other with the inner chamber of steel bottle, realizes being connected of steel bottle and valve body 1 through the welded mode to reduced the possibility that the user personally pulled down valve body 1 from the steel bottle.
Referring to fig. 2, the top end of the valve body 1 is connected with a sealing cover 3 through bolts, and the arrangement of the sealing cover 3 reduces the possibility of foreign substances entering the main flow passage 12.
Referring to fig. 2, one end of the rotating rod 41 is located outside the valve body 1, and the other end rotates to pass through the cover 3 and extend into the main flow passage 12, and the cover 3 is coaxially disposed with the rotating rod 41. The handle 8 is fixedly connected to one end of the rotating rod 41 outside the valve body 1.
Referring to fig. 2, the screw block 42 is fixedly fitted on the shaft of the rotating rod 41 in the main flow channel 12, and the circumferential outer side wall of the screw block 42 is in threaded connection with the side wall of the main flow channel 12. The plugging sleeve 43 is rotatably sleeved on the rotating rod 41, the plugging sleeve 43 is positioned on one side of the thread block 42 back to the sealing block 45 and is tightly attached to the thread block, and the plugging sleeve 43 is tightly attached to the side wall of the main flow channel 12.
Referring to fig. 2, a limit bolt 44 is screwed to one end of the rotating rod 41 located in the main flow channel 12, and the limit bolt 44 is used for supporting the bottom wall of the plugging sleeve 43.
Referring to fig. 2, an operator rotates the handle 8, the handle 8 drives the rotating rod 41 to rotate, the rotating rod 41 drives the screw block 42 to rotate, and the sealing sleeve 43 can slide in the main flow channel 12 due to the screw fit between the screw block 42 and the main flow channel 12 and the supporting of the limiting bolt 44 on the sealing sleeve 43, so that the sealing sleeve 43 blocks the filling opening 2 or the filling opening 2 is communicated with the main flow channel 12.
Referring to fig. 2, an annular sealing groove 432 is formed in the outer side wall of the blocking sleeve 43, an O-ring 7 is placed in the sealing groove 432, the O-ring 7 is tightly attached to the side wall of the main flow passage 12, and the O-ring 7 is arranged to facilitate enhancing of the sealing performance between the blocking sleeve 43 and the valve body 1, so that the possibility that gas in the steel cylinder leaks out from between the blocking sleeve 43 and the valve body 1 is reduced.
Referring to fig. 2 and 3, the bottom wall of the plugging sleeve 43 is provided with a sliding groove 431 along the axial direction thereof, a sliding block 46 slides in the sliding groove 431, and the sliding groove 431 is communicated with the circumferential outer side wall of the plugging sleeve 43. The cross sections of the sliding block 46 and the sliding groove 431 are arranged in a dovetail shape, and the dovetail shape reduces the possibility that the sliding block 46 is inclined and twisted when sliding in the sliding groove 431.
Referring to fig. 3 and 4, the top end of the sliding groove 431 is closed and the bottom end is closed by a sealing block 45, and the sealing block 45 is welded in the sliding groove 431. The arrangement of the sealing block 45 has a limiting effect on the sliding block 46, so that the possibility that the sliding block 46 is separated from the sliding groove 431 is reduced.
Referring to fig. 2 and 3, two receiving holes 461 are formed in a side of the sliding block 46 facing away from the blocking sleeve 43, the two receiving holes 461 are symmetrically arranged about an axis of the filling opening 2, a connecting line between the two receiving holes 461 is horizontally arranged, and the receiving holes 461 are located on the other side of the blocking sleeve 43 opposite to the filling opening 2.
Referring to fig. 3, a plug 47 is inserted into and slidably engaged with the receiving hole 461, and a compression spring 48 is further disposed in the receiving hole 461. The compression spring 48 is supported between the plug 47 and the bottom of the accommodating hole 461, the inner wall of the valve body 1 is provided with plug holes for the plug 47 to insert, and one plug 47 corresponds to one plug hole.
Referring to fig. 3, the plug 47 is inserted into the insertion hole at one end and positioned in the receiving hole 461 at the other end under the urging force of the compression spring 48. The movement range of the plugging sleeve 43 is smaller than the length of the sliding groove 431 by the limiting action of the sliding block 46 on the plugging sleeve 43, so that a user cannot move the plugging sleeve 43 out of the valve body 1 through the rotating rod 41, and the user cannot disassemble the switch valve.
Referring to fig. 2 and 4, two guide grooves 11 are formed on the inner side wall of the valve body 1, and one guide groove 11 corresponds to one insertion hole. The guide groove 11 is parallel to the length direction of the main flow passage 12, one end of the guide groove 11 is communicated with the corresponding plug hole, and the other end extends to the top surface of the valve body 1.
Referring to fig. 4, when an installer installs the plugging sleeve 43 into the valve body 1, one end of the plug pin 47 is inserted into the guide groove 11 and slides along the length direction thereof, and when the plug pin 47 slides to the bottom end of the guide groove 11, one end of the plug pin 47 is inserted into the insertion hole under the action of the compression spring 48.
Referring to fig. 2 and 3, the valve body 1 is further provided with a tamper assembly for pushing the plug 47 back into the receiving hole 461, and the tamper assembly includes a locking portion and an unlocking portion. The locking part includes a fixing block 51 and a release pin 52. The fixed block 51 is connected to the other side of the valve body 1 opposite to the filling opening 2.
Referring to fig. 2 and 3, the side of the fixed block 51 facing away from the valve body 1 is provided with an unlocking hole 511, and the axis of the unlocking hole 511 is parallel to the axis of the filling opening 2. The side wall of the unlocking hole 511 is provided with a ring-shaped transition groove 512, one side of the transition groove 512 facing the valve body 1 is provided with a second unlocking groove 514 along the direction close to the valve body 1, one side of the transition groove 512 back to the valve body 1 is provided with a first unlocking groove 513 along the direction far away from the valve body 1, and the first unlocking groove 513 and the second unlocking groove 514 are arranged in a staggered way around the axis of the unlocking hole 511.
Referring to fig. 3, the first unlocking groove 513 is communicated with one side of the fixed block 51 opposite to the valve body 1, the first unlocking groove 513, the second unlocking groove 514 and the insertion hole are communicated, and one first unlocking groove 513 and one second unlocking groove 514 correspond to one insertion hole. The unlocking pin 52 is located at one end of the plug 47 opposite to the bottom of the hole of the receiving hole 461, and the unlocking pin 52 is inserted into the plug hole under the supporting action of the plug 47 and extends into the second unlocking groove 514.
Referring to fig. 3 and 5, the unlocking part includes an unlocking lever 61 and two pushing blocks 62, each of the two pushing blocks 62 is fixedly connected to an outer side wall of the unlocking lever 61 and is close to one end thereof, and the two unlocking levers 61 are symmetrically disposed about an axis of the unlocking lever 61. The push block 62 is in sliding fit with the first unlocking groove 513, the push block 62 is in sliding fit with the second unlocking groove 514, and the push block 62 is in rotating fit with the transition groove 512.
Referring to fig. 3 and 5, the unlocking portion is equivalent to a key and has an unlocking function, when a part in the valve body 1 needs to be replaced due to long-term use, a worker inserts the unlocking lever 61 into the unlocking hole 511, and after the push block 62 moves from the first unlocking groove 513 to the transition groove 512, the unlocking lever 61 is rotated by a certain angle and is continuously pushed into the unlocking lever 61, and the push block 62 is pushed into the second unlocking groove 514 from the transition groove 512.
Referring to fig. 3 and 5, the unlocking pin 52 is pushed into the insertion hole by the pushing block 62 from the second unlocking groove 514, and the plug 47 is pushed toward the receiving hole 461 by the unlocking pin 52, so that when the abutting surface of the unlocking pin 52 and the plug 47 is flush with the bottom of the guide groove 11, a worker can take out the components in the valve body 1 from the valve body 1.
Referring to fig. 3 and 5, since the unlocking part is worn by a specific worker, the locking part is small in size. And under the condition that the user does not have the unlocking part, the unlocking pin 52 is difficult to push to unlock the plugging sleeve 43, so that the possibility that the user personally detaches the switch valve is reduced.
Referring to fig. 3 and 5, the plug hole comprises a first plug hole 515 and a second plug hole 516 which are coaxially arranged, the second plug hole 516 is positioned at one end of the first plug towards the valve body 1, the diameter of the second plug hole 516 is larger than that of the first plug hole 515, and the unlocking pin 52 is matched with the shape of the plug hole.
Referring to fig. 3 and 5, the insertion hole and the unlocking pin 52 are in stepped fit, so as to limit the unlocking pin 52 and reduce the possibility that the unlocking pin 52 moves into the transition groove 512 under the thrust of the pressure spring 48, so that the push block 62 cannot rotate in the transition groove 512.
Referring to fig. 3 and 5, the lock release lever 61 is spaced apart from the lock release hole 511, and the spaced arrangement allows the lock release lever 61 to be more smoothly inserted into the lock release hole 511 and rotated.
The embodiment of the application provides a switching valve for liquefied gas steel cylinder's implementation principle with prevent privately tearing effect does: the steel bottle is in normal use in-process, and operating personnel rotates dwang 41 and drives screw block 42 and rotate, and screw block 42 and spacing bolt 44 cooperation drive shutoff cover 43 and remove, and the in-process that shutoff cover 43 reciprocated can seal filling mouth 2 or open filling mouth 2 to this after the gas in the steel bottle used up, replenishment that can be timely. In the using process, the plug pin 47 is inserted into the plug hole under the action of the thrust of the pressure spring 48, so that when the plugging sleeve 43 moves, the sliding block 46 for accommodating the plug pin 47 also slides in the sliding groove 431, and the bottom end of the sliding groove 431 is sealed through the sealing block 45, so that the moving range of the plugging sleeve 43 is limited, the plugging sleeve 43 cannot move out of the valve cover, and the possibility of the user of detaching the switch valve privately is reduced;
when the switch valve needs to be maintained after being used for a long time, a user delivers the steel cylinder to a professional worker, and the worker unlocks the switch valve by using the unlocking part matched with the locking part;
the worker inserts the unlocking rod 61 into the unlocking hole 511, and after the pushing block 62 moves from the first unlocking groove 513 to the transition groove 512, the unlocking rod 61 is rotated by a certain angle, the pushing block 62 continues to push the unlocking rod 61, and the pushing block 62 is pushed into the second unlocking groove 514 through the transition groove 512. The pushing block 62 pushes the unlocking pin 52 into the insertion hole from the second unlocking groove 514, and the unlocking pin 52 pushes the plug 47 into the receiving hole 461, so that when the abutting surface of the unlocking pin 52 and the plug 47 is flush with the bottom of the guide groove 11, the operator can take out the valve body 1 from the components in the valve body 1 and replace the components.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a switching valve for liquefied gas steel cylinder with prevent privately tearing effect, includes valve body (1) of vertical setting, its characterized in that: the bottom fixed connection of valve body (1) just communicates with each other rather than the inner chamber on the steel bottle, the top opening of valve body (1) just communicates with each other with sprue (12), valve body (1) is equipped with dwang (41) outward, dwang (41) extend to sprue (12) in and fixed cover be equipped with thread block (42), the circumference lateral wall of thread block (42) and the lateral wall threaded connection of sprue (12), be located thread block (42) and rotate the cover and be equipped with shutoff cover (43) towards dwang (41) of valve body (1) bottom one side, shutoff cover (43) are hugged closely with the lateral wall of sprue (12), one end threaded connection that dwang (41) are located sprue (12) has and is used for carrying out the spacing bolt (44) of bearing to the diapire of shutoff cover (43), the diapire of shutoff cover (43) is opened along its axis direction has sliding groove (431), the top of sliding groove (431) is sealed and the bottom is sealed through a sealing block (45), sliding groove (431) communicates with each other with the circumference lateral wall of shutoff cover (43), sliding block (46) has sliding block (431) in sliding groove (431), sliding block (46) is opened to one side of shutoff cover (43) axis dorsad and is had accommodation hole (461), sliding in accommodation hole (461) has bolt (47), the shore has pressure spring (48) between the hole bottom of bolt (47) and accommodation hole (461), it has confession bolt (47) male spliced eye to open on the inner wall of valve body (1).
2. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 1, wherein: still be equipped with on valve body (1) and be used for pushing back bolt (47) the subassembly of preventing tearing open in accommodation hole (461), prevent tearing open the subassembly and include locking portion and unblock portion, locking portion is including connecting fixed block (51) on valve body (1) lateral wall, open one side of fixed block (51) valve body (1) dorsad has unblock hole (511), it has transition groove (512) that is the loop-type to open on the lateral wall of unblock hole (511), it has second unblock groove (514) to open along the direction that is close to valve body (1) one side of crossing transition groove (512) orientation valve body (1), it has first unblock groove (513) to open along the direction of keeping away from valve body (1) one side of crossing transition groove (512) valve body (1), first unblock groove (513) and second unblock groove (514) are around the axis dislocation set of unblock hole (511), first unblock groove (513) communicates with each other with one side of fixed block (51) dorsad, the plug hole extends to the fixed block (51) and is communicated with the second unlocking groove (514), the first unlocking groove (513), the second unlocking groove (514) and the plug hole are communicated, and an unlocking pin (52) sliding in the plug hole is supported at one end of the plug pin (47) back to the hole bottom of the accommodating hole (461); the unblock portion includes and peg graft and normal running fit's unblock pole (61) with unblock hole (511), fixedly connected with is used for promoting and separates ejector pad (62) that lockpin (52) slided in the jack on the lateral wall of unblock pole (61), ejector pad (62) and first unblock groove (513) ejector pad (62) and second unblock groove (514) the cooperation of sliding respectively, ejector pad (62) and ferryboat (512) normal running fit.
3. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 1, wherein: the cross sections of the sliding block (46) and the sliding groove (431) are arranged in a dovetail shape.
4. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 1, wherein: a guide groove (11) is formed in the side wall of the main flow channel (12) in a position opposite to the plug pin (47), the guide groove (11) is parallel to the length direction of the main flow channel (12), one end of the guide groove (11) is communicated with the plug hole, and the other end of the guide groove extends to the top surface of the valve body (1).
5. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 1, wherein: an annular sealing groove (432) is formed in the outer side wall of the blocking sleeve (43), an O-shaped ring (7) is placed in the sealing groove (432), and the O-shaped ring (7) is tightly attached to the side wall of the main flow channel (12).
6. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 2, wherein: the push blocks (62) are symmetrically arranged in two relative to the axis of the unlocking rod (61).
7. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 2, wherein: the plug hole comprises a first plug hole (515) and a second plug hole (516) which are coaxially arranged, the second plug hole (516) is located at one end, facing the valve body (1), of the first plug, the diameter of the second plug hole (516) is larger than that of the first plug hole (515), and the unlocking pin (52) is assembled with the plug hole in shape.
8. The opening/closing valve for an liquefied gas cylinder having an effect of preventing private disassembly according to claim 2, wherein: the unlocking rod (61) and the unlocking hole (511) are arranged in a clearance mode.
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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860446A (en) * 1996-03-12 1999-01-19 Climax Portable Machine Tools, Inc. Method and apparatus for safely controlling fluid flow
FR2809476A1 (en) * 2000-05-29 2001-11-30 Senior Flexonics Ermeto Snc Method of making cryogenic fluid tank involves placing insulation around inner casing before mounting outer casing
WO2010120161A1 (en) * 2009-04-16 2010-10-21 Abdellah El Yabouri Regulator for a gas cylinder
CN202001620U (en) * 2010-12-30 2011-10-05 超群钢瓶有限公司 Switch valve for high-pressure gas steel cylinder
CN202834338U (en) * 2012-10-25 2013-03-27 中国石油化工股份有限公司 Anti-theft hand wheel and anti-theft valve using the same
CN104089056A (en) * 2014-07-22 2014-10-08 浙江金象科技有限公司 Novel non-repeated filling valve and obtaining method thereof
CN205979171U (en) * 2016-08-12 2017-02-22 深圳安博智控科技有限公司 Liquefied gas cylinder is with preventing tearing open valve
CN106641418A (en) * 2015-11-02 2017-05-10 江苏中昊船用阀门制造有限公司 High-temperature-resistant rapid switching-off type stop valve
CN207406835U (en) * 2017-09-29 2018-05-25 浙江镔利科技有限公司 One kind is anti-to fill tamper gas valve
CN210484654U (en) * 2019-08-13 2020-05-08 青海康讯交通工程有限公司 Threaded connection gate valve copper valve body
CN210890337U (en) * 2019-10-25 2020-06-30 温州市海格阀门有限公司 Prevent malicious operation high sealed stop valve

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860446A (en) * 1996-03-12 1999-01-19 Climax Portable Machine Tools, Inc. Method and apparatus for safely controlling fluid flow
FR2809476A1 (en) * 2000-05-29 2001-11-30 Senior Flexonics Ermeto Snc Method of making cryogenic fluid tank involves placing insulation around inner casing before mounting outer casing
WO2010120161A1 (en) * 2009-04-16 2010-10-21 Abdellah El Yabouri Regulator for a gas cylinder
CN202001620U (en) * 2010-12-30 2011-10-05 超群钢瓶有限公司 Switch valve for high-pressure gas steel cylinder
CN202834338U (en) * 2012-10-25 2013-03-27 中国石油化工股份有限公司 Anti-theft hand wheel and anti-theft valve using the same
CN104089056A (en) * 2014-07-22 2014-10-08 浙江金象科技有限公司 Novel non-repeated filling valve and obtaining method thereof
CN106641418A (en) * 2015-11-02 2017-05-10 江苏中昊船用阀门制造有限公司 High-temperature-resistant rapid switching-off type stop valve
CN205979171U (en) * 2016-08-12 2017-02-22 深圳安博智控科技有限公司 Liquefied gas cylinder is with preventing tearing open valve
CN207406835U (en) * 2017-09-29 2018-05-25 浙江镔利科技有限公司 One kind is anti-to fill tamper gas valve
CN210484654U (en) * 2019-08-13 2020-05-08 青海康讯交通工程有限公司 Threaded connection gate valve copper valve body
CN210890337U (en) * 2019-10-25 2020-06-30 温州市海格阀门有限公司 Prevent malicious operation high sealed stop valve

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