CN113653841A - Safety valve - Google Patents

Safety valve Download PDF

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Publication number
CN113653841A
CN113653841A CN202110894543.2A CN202110894543A CN113653841A CN 113653841 A CN113653841 A CN 113653841A CN 202110894543 A CN202110894543 A CN 202110894543A CN 113653841 A CN113653841 A CN 113653841A
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CN
China
Prior art keywords
pipe
groove
ring
arc
safety valve
Prior art date
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Granted
Application number
CN202110894543.2A
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Chinese (zh)
Other versions
CN113653841B (en
Inventor
谢宙鹏
孔令超
胡宏伟
孙超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI BAOLIN EXPLOSIONPROOF ELECTRIC CO Ltd
Original Assignee
SHANGHAI BAOLIN EXPLOSIONPROOF ELECTRIC CO Ltd
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Application filed by SHANGHAI BAOLIN EXPLOSIONPROOF ELECTRIC CO Ltd filed Critical SHANGHAI BAOLIN EXPLOSIONPROOF ELECTRIC CO Ltd
Priority to CN202110894543.2A priority Critical patent/CN113653841B/en
Publication of CN113653841A publication Critical patent/CN113653841A/en
Application granted granted Critical
Publication of CN113653841B publication Critical patent/CN113653841B/en
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    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0486—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with mechanical actuating means
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/12—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe using attaching means embracing the pipe

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

Abstract

The invention discloses a safety valve, which comprises a conveying pipe, wherein the upper end of the pipe surface of the conveying pipe is provided with a connecting groove, an adjusting pipe is movably sleeved in the connecting groove, the rear end of the pipe surface of the adjusting pipe is communicated with a pressure relief pipe, the outer pipe surface of the conveying pipe is provided with a limiting mechanism, two lantern rings are respectively positioned at the front side and the rear side of the connecting groove, and the upper end of the adjusting pipe is provided with an elastic mechanism. The force is more easily applied by using the turntable, and the parts can be taken down only by integrally disassembling the turntable.

Description

Safety valve
Technical Field
The application relates to the technical field of valves, in particular to a safety valve.
Background
The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation. The injection safety valve can be used only after a pressure test;
the conventional safety valve for gas transmission pipeline has the following problems: the connecting part for connecting the gas pipe and the pressure relief pipe is in threaded connection by using a screw and a nut, so that connection looseness is easily caused due to the looseness of the screw, connection instability and gas leakage are caused, a large number of screws are required to be disassembled and assembled, time and labor are consumed when disassembly and assembly are carried out, and the large number of screws and connecting parts are easily confused and lost, so that the disassembly and assembly efficiency is influenced;
therefore, the safety valve is provided, compared with a common mode of fixing by utilizing screws and helicoids, the safety valve is not easy to loosen, is simple to operate and high in operation speed, small parts cannot be disorderly lost in the dismounting process, the safety valve effect is prevented from being influenced due to part deletion, the situation that the position of a moving block deviates due to the fact that a screw rod deflects in a thread groove is avoided, the stability is improved, and the risk that parts are stolen is effectively reduced.
Disclosure of Invention
The present invention is directed to a safety valve to solve the problems of the prior art.
The embodiment of the application adopts the following technical scheme:
the utility model provides a safety valve, includes the conveyer pipe, the spread groove has been seted up to the face of pipe upper end of conveyer pipe, the regulating tube has been cup jointed to the spread groove internalization, the face of pipe rear end switch-on of regulating tube has the pressure release pipe, the outer pipe face of conveyer pipe is provided with limiting mechanism, limiting mechanism includes two lantern rings, two the lantern ring is located both sides around the spread groove respectively, two the interior anchor ring of the lantern ring all cup joints with the conveyer pipe outer wall is fixed, the upper end of regulating tube is provided with elastic mechanism.
Preferably, the lower end of the outer pipe wall of the adjusting pipe is fixedly connected with two first limiting rods, the upper end of the front side of the outer pipe wall of the adjusting pipe is uniformly and fixedly provided with a group of rectangular blocks with equal intervals, a vertical groove penetrates through the upper end of the rear side of the outer pipe surface of the adjusting pipe, the height of the vertical groove is matched with the height of the rectangular blocks, a check ring is fixedly arranged on the lower groove opening of the adjusting pipe, a circular ring is movably sleeved on the outer pipe surface of the adjusting pipe, the front end and the rear end of the outer ring surface of the circular ring are fixedly connected with second limiting rods, and the movable range of the circular ring is between the first limiting rods and the pressure relief pipe.
Preferably, the upper end of the outer ring surface of each lantern ring is provided with an arc-shaped groove, the front and rear groove walls of each arc-shaped groove are provided with sliding grooves, the middle part of the groove surface of each arc-shaped groove is provided with a clamping groove, and an arc-shaped plate is movably arranged in each arc-shaped groove.
Preferably, every the arc is all fixed with the draw runner around two sides, every the draw runner activity respectively sets up in the spout that corresponds, every two limiting plates of equal fixedly connected with of last cambered surface middle part of arc, two three connecting rod of fixedly connected with between the lantern ring, it is three the lower three-terminal of controlling of two relative two sides of lantern ring of fixed connection respectively at the both ends of connecting rod.
Preferably, when the lower end of the adjusting pipe is inserted into the connecting groove, the two limiting rods are respectively located in the two clamping grooves, the rod heights of the two limiting rods are the same as the groove depths of the clamping grooves, and the distance between the limiting plates is the same as the rod width of the first limiting rod.
Preferably, the elastic mechanism comprises a top plate, the bottom surface of the top plate is fixedly connected with the top surface of the adjusting pipe, the diameter of the top plate is larger than the outer diameter of the adjusting pipe, a thread groove is formed in the middle of the plate surface of the top plate, a screw rod is connected in the thread groove through threads, the bottom end of the screw rod is a spherical surface, a turntable is fixedly connected to the upper end of the screw rod, a moving block is attached to the bottom end of the screw rod, a connecting block is fixedly connected to the rear end of the moving block, and a through groove is formed in the surface of the connecting block.
Preferably, the lower surface of the moving block is fixedly connected with a spring, the lower end of the spring is fixedly connected with a piston block, and the annular surfaces of the piston block and the moving block are attached to the inner wall of the adjusting pipe.
Preferably, the outer surface activity of regulating pipe has cup jointed the spacing ring, the spacing ring surface is equipped with the breach, the size and the rectangular block size of spacing ring surface breach match, the ring footpath of spacing ring matches with the groove footpath of logical groove, and the interval of two adjacent rectangular blocks from top to bottom is the same with the ring height of spacing ring, the front end activity of connecting block sets up in erecting the inslot.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
firstly, an operator inserts the lower end of the regulating pipe into the connecting groove until the bottom surfaces of the two first limiting rods are respectively attached to the groove bottoms of the two clamping grooves, at the moment, the lower end of the regulating pipe can not move downwards to enable the regulating pipe to be communicated with the conveying pipe, the two arc-shaped plates can respectively slide in the two arc-shaped grooves by stirring the limiting plates, the slide bar slides in the sliding groove to prevent the arc-shaped plates from being separated from the arc-shaped grooves, when the arc-shaped plates move to the middle part of the arc-shaped grooves, the bottom surfaces of the arc-shaped plates can shield the clamping grooves to enable the first limiting rods to be separated from the clamping grooves, the first limiting rods can not move again, namely, the regulating pipe can not move any more, the primary fixing effect is achieved, at the moment, the two second limiting rods are respectively clamped between the pair of limiting plates by downwards sliding the circular ring, the two arc-shaped plates can not be separated from each other, the position stability of the first limiting rods is indirectly improved by fixing the positions of the arc-shaped plates, the fixing effect is increased, and the two limiting rods can not easily separated from the limiting plates due to naturally droop under the gravity, utilize restriction each other between arc, the gag lever post, reach the effect of stably connecting conveyer pipe and control tube, compare the common mode that utilizes screw and helicoidal to fix, difficult not hard up and easy operation operating speed is fast.
And secondly, the whole device for connecting the conveying pipe and the adjusting pipe does not have independent parts, all the parts are connected to the conveying pipe or the adjusting pipe, so that the parts are not easy to lose, small parts cannot be disorderly lost in the process of disassembly and assembly, and the effect of the safety valve is prevented from being influenced due to the loss of the parts.
Thirdly, after the adjusting pipe is connected with the conveying pipe, the turntable is rotated to lead the screw to ascend and descend under the rotation according to the property of the gas conveyed in the conveying pipe, the screw ascends and descends to drive the movable block contacted with the screw to ascend and descend, because the retainer ring is used for limiting the piston block, the pressure required for jacking the piston block from the conveying pipe can be adjusted by adjusting the position of the moving block, because the limit ring moves along with the moving block in the through groove, the position of the notch of the limit ring is staggered with the position of the rectangular block by rotating the limit ring, the limit ring can not lift any more, and the friction force between the limit ring and the joint part of the rectangular block is increased due to the elastic force of the spring, thereby reducing the probability of sliding deviation of the limit ring, the fixing of the position of the moving block is further improved through the limiting of the limiting ring, the moving block is prevented from deviating due to the deflection of the screw rod in the thread groove, and the stability is improved.
Fourthly, the mode that the carousel was earlier utilized to adjust movable block position reuse spacing ring restriction movable block position for when the lift movable block, because the elasticity of safety valve inner spring is great, use the carousel to change the application of force, if direct pulling connecting block carries out the removal of movable block, the point of application of force is less, is difficult for the application of force.
Fifthly, the diameter ratio of the top plate is larger than the outer diameter of the adjusting pipe, so that the limiting ring is not easy to break away from the upper part of the adjusting pipe, the loss of parts is further avoided, the parts can be taken down only by integrally disassembling due to the fact that the parts cannot be disassembled, and the risk that the parts are stolen is effectively reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the connecting slot of the present invention;
FIG. 3 is a schematic view of the structure of the collar of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the structure of the regulator tube of the present invention;
FIG. 6 is a schematic structural view of a vertical groove in the present invention;
FIG. 7 is a schematic view of the structure of the stop lever of the present invention;
FIG. 8 is a schematic view of the retainer ring according to the present invention;
FIG. 9 is a schematic structural view of the elastic mechanism of the present invention;
in the figure: 1. a delivery pipe; 2. a collar; 3. an adjusting tube; 4. a top plate; 5. connecting grooves; 6. an arc-shaped plate; 7. a connecting rod; 8. an arc-shaped slot; 9. a card slot; 10. a chute; 11. a slide bar; 12. a rectangular block; 13. a first limiting rod; 14. a second limiting rod; 15. a circular ring; 16. a retainer ring; 17. a pressure relief pipe; 18. a vertical slot; 19. a moving block; 20. a spring; 21. a piston block; 22. connecting blocks; 23. a through groove; 24. a limiting ring; 25. a thread groove; 26. a turntable; 27. a screw; 28. and a limiting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 8, the present invention provides a safety valve, which comprises: comprises a conveying pipe 1, a connecting groove 5 is arranged at the upper end of the pipe surface of the conveying pipe 1, an adjusting pipe 3 is movably sleeved in the connecting groove 5, the rear end of the pipe surface of the adjusting pipe 3 is communicated with a pressure relief pipe 17, a limiting mechanism is arranged on the outer pipe surface of the conveying pipe 1, the limiting mechanism comprises two lantern rings 2, the two lantern rings 2 are respectively arranged at the front side and the rear side of the connecting groove 5, the inner ring surfaces of the two lantern rings 2 are fixedly sleeved with the outer wall of the conveying pipe 1, the lower end of the outer pipe wall of the adjusting pipe 3 is fixedly connected with two limiting rods 13, the upper end of the front side of the outer pipe wall of the adjusting pipe 3 is uniformly and fixedly provided with a group of equidistant rectangular blocks 12, a vertical groove 18 penetrates through the upper end of the rear side of the outer pipe surface of the adjusting pipe 3, the height of the vertical groove 18 is matched with the height of the group of the rectangular blocks 12, a retaining ring 16 is fixedly arranged at the lower notch of the adjusting pipe 3, a circular ring 15 is movably sleeved on the outer pipe surface of the adjusting pipe 3, two limiting rods 14 are fixedly connected at the front end and the rear end of the outer ring surface of the circular ring 15, the movable range of the ring 15 is between a first limiting rod 13 and a pressure relief pipe 17, the upper end of the outer ring surface of each lantern ring 2 is provided with an arc-shaped groove 8, the front and back groove walls of each arc-shaped groove 8 are provided with sliding grooves 10, the middle part of the groove surface of each arc-shaped groove 8 is provided with a clamping groove 9, each arc-shaped groove 8 is internally movably provided with an arc-shaped plate 6, the front and back surfaces of each arc-shaped plate 6 are fixedly provided with sliding strips 11, each sliding strip 11 is respectively and movably arranged in the corresponding sliding groove 10, the middle part of the upper arc surface of each arc-shaped plate 6 is fixedly connected with two limiting plates 28, three connecting rods 7 are fixedly connected between the two lantern rings 2, two ends of each connecting rod 7 are respectively and fixedly connected with the left and right three lower ends of the two opposite surfaces of the two lantern rings 2, when the lower end of the adjusting pipe 3 is inserted into the connecting groove 5, the two second limiting rods 14 are respectively positioned in the two clamping grooves 9, the rod heights of the two limiting rods 14 are the same as the groove depths of the clamping grooves 9, an operator inserts the lower end of the adjusting pipe 3 into the connecting groove 5 until the bottom surfaces of the two first limiting rods 13 are respectively attached to the bottoms of the two clamping grooves 9, at the moment, the lower end of the adjusting pipe 3 cannot move downwards to connect the adjusting pipe 3 with the conveying pipe 1, the two arc-shaped plates 6 respectively slide in the two arc-shaped grooves 8 by shifting the limiting plates 28, the slide bar 11 slides in the sliding groove 10 to prevent the arc-shaped plates 6 from separating from the arc-shaped grooves 8, when the arc-shaped plates 6 move to the middle parts of the arc-shaped grooves 8, the bottom surfaces of the arc-shaped plates 6 shield the clamping grooves 9 to prevent the first limiting rods 13 from separating from the clamping grooves 9, the first limiting rods 13 cannot move any more, namely, the adjusting pipe 3 cannot move any more, so as to achieve the effect of primary fixation, at the moment, the two second limiting rods 14 are respectively clamped between the pair of limiting plates 28 by downwards sliding the circular ring 15, so that the two arc-shaped plates 6 cannot deflect any more, and indirectly promote the position stability of the first limiting rods 13 by fixing the positions of the arc-shaped plates 6, the fixing effect is increased, the ring 15 naturally droops under the gravity, so that the two second limit rods 14 are not easy to separate from the limit plates 28, and the distance between the two limit plates 28 on the same arc-shaped plate 6 is the same as the rod width of the first limit rod 13.
Specifically, in use: an operator inserts the lower end of the adjusting pipe 3 into the connecting groove 5 until the bottom surfaces of the two first limiting rods 13 are respectively attached to the bottoms of the two clamping grooves 9, at the moment, the lower end of the adjusting pipe 3 cannot move downwards to connect the adjusting pipe 3 with the conveying pipe 1, the two arc-shaped plates 6 respectively slide in the two arc-shaped grooves 8 by shifting the limiting plates 28, the slide bar 11 slides in the sliding groove 10 to prevent the arc-shaped plates 6 from separating from the arc-shaped grooves 8, when the arc-shaped plates 6 move to the middle parts of the arc-shaped grooves 8, the bottom surfaces of the arc-shaped plates 6 shield the clamping grooves 9 to prevent the first limiting rods 13 from separating from the clamping grooves 9, the first limiting rods 13 cannot move any more, namely, the adjusting pipe 3 cannot move any more, so as to achieve the effect of primary fixation, at the moment, the two second limiting rods 14 are respectively clamped between the pair of limiting plates 28 by downwards sliding the circular ring 15, so that the two arc-shaped plates 6 cannot deflect any more, and indirectly promote the position stability of the first limiting rods 13 by fixing the positions of the arc-shaped plates 6, the fixing effect is increased, and the ring 15 naturally droops under the gravity, so that the two second limit rods 14 are not easy to separate from the limit plate 28.
Example 2
On the basis of embodiment 1, please refer to fig. 9, an elastic mechanism is disposed at the upper end of the adjusting tube 3, the elastic mechanism includes a top plate 4, the bottom surface of the top plate 4 is fixedly connected with the top surface of the adjusting tube 3, the diameter of the top plate 4 is greater than the outer diameter of the adjusting tube 3, a threaded groove 25 is disposed at the middle portion of the plate surface of the top plate 4, a screw 27 is connected in the threaded groove 25 through a thread, the bottom end of the screw 27 is spherical, a rotating disc 26 is fixedly connected at the upper end of the screw 27, a moving block 19 is attached to the bottom end of the screw 27, a connecting block 22 is fixedly connected at the rear end of the moving block 19, a through groove 23 is disposed on the surface of the connecting block 22, a spring 20 is fixedly connected to the lower surface of the moving block 19, a piston block 21 is fixedly connected to the lower end of the spring 20, the annular surfaces of the piston block 21 and the moving block 19 are both attached to the inner wall of the adjusting tube 3, a limit ring 24 is movably sleeved on the outer surface of the adjusting tube 3, the surface of the limiting ring 24 is provided with a gap, the gap on the surface of the limiting ring 24 is matched with the size of the rectangular block 12, the ring diameter of the limiting ring 24 is matched with the groove diameter of the through groove 23, the distance between the two vertically adjacent rectangular blocks 12 is the same as the ring height of the limiting ring 24, after the adjusting pipe 3 is connected with the conveying pipe 1, the rotary table 26 is rotated to enable the screw 27 to rotate and lift according to the property of gas conveyed in the conveying pipe 1, the screw 27 lifts to drive the moving block 19 in contact with the screw 27 to lift, because the retainer ring 16 limits the piston block 21, the pressure required for jacking the piston block 21 from the conveying pipe 1 can be adjusted by adjusting the position of the moving block 19, after adjustment is completed, because the limiting ring 24 moves along with the moving block 19 in the through groove 23, at the moment, the gap of the limiting ring 24 is staggered with the position of the rectangular block 12 by rotating the limiting ring 24, the limiting ring 24 can not lift any more, and because the elastic force of the spring 20 enables the friction force of the joint part of the limiting ring 24 and the rectangular blocks 12 to be increased, the probability of sliding deviation of the limiting ring 24 is reduced, the position of the moving block 19 is further lifted through limiting of the limiting ring 24, the situation that the position of the moving block 19 deviates due to deflection of the screw 27 in the thread groove 25 is avoided, stability is improved, and the front end of the connecting block 22 is movably arranged in the vertical groove 18.
Specifically, in use: after the adjusting pipe 3 is connected with the conveying pipe 1, the rotary table 26 is rotated to enable the screw 27 to ascend and descend under rotation according to the property of gas conveyed in the conveying pipe 1, the screw 27 ascends and descends to drive the moving block 19 contacted with the screw to ascend and descend, the pressure required for jacking the piston block 21 from the conveying pipe 1 can be adjusted by adjusting the position of the moving block 19 due to the limitation of the retainer ring 16 on the piston block 21, after the adjustment is completed, the friction force of the joint part of the limiting ring 24 and the rectangular block 12 is increased due to the elastic force of the spring 20, the probability of sliding deviation of the limiting ring 24 is reduced, the position of the moving block 19 is further lifted by the limitation of the limiting ring 24 to be fixed, and the position deviation of the moving block 19 caused by the deflection of the screw 27 in the thread groove 25 is avoided, the stability is improved.
The working principle is as follows: an operator inserts the lower end of the adjusting pipe 3 into the connecting groove 5 until the bottom surfaces of the two first limiting rods 13 are respectively attached to the bottoms of the two clamping grooves 9, at the moment, the lower end of the adjusting pipe 3 cannot move downwards to connect the adjusting pipe 3 with the conveying pipe 1, the two arc-shaped plates 6 respectively slide in the two arc-shaped grooves 8 by shifting the limiting plates 28, the slide bar 11 slides in the sliding groove 10 to prevent the arc-shaped plates 6 from separating from the arc-shaped grooves 8, when the arc-shaped plates 6 move to the middle parts of the arc-shaped grooves 8, the bottom surfaces of the arc-shaped plates 6 shield the clamping grooves 9 to prevent the first limiting rods 13 from separating from the clamping grooves 9, the first limiting rods 13 cannot move any more, namely, the adjusting pipe 3 cannot move any more, so as to achieve the effect of primary fixation, at the moment, the two second limiting rods 14 are respectively clamped between the pair of limiting plates 28 by downwards sliding the circular ring 15, so that the two arc-shaped plates 6 cannot deflect any more, and indirectly promote the position stability of the first limiting rods 13 by fixing the positions of the arc-shaped plates 6, the fixing effect is increased, the circular ring 15 naturally droops under the gravity to ensure that the two second limit rods 14 are not easy to separate from the limit plates 28, after the adjusting pipe 3 is connected with the conveying pipe 1, the rotary table 26 is rotated to ensure that the screw 27 ascends and descends under rotation according to the property of gas conveyed in the conveying pipe 1, the screw 27 ascends and descends to drive the moving block 19 contacted with the screw, the position of the moving block 19 can be adjusted due to the limit of the check ring 16 on the piston block 21, the pressure required for jacking the piston block 21 from the conveying pipe 1 can be adjusted, after the adjustment is finished, the limit ring 24 moves along with the moving block 19 in the through groove 23 due to the fact that the limit ring 24 rotates to ensure that the gap of the limit ring 24 is staggered with the position of the rectangular block 12, the limit ring 24 can not ascend and descend any more, the friction force of the joint part of the limit ring 24 and the rectangular block 12 is increased due to the elastic force of the spring 20, and the probability of sliding deviation of the limit ring 24 is reduced, the position of the moving block 19 is further lifted and fixed through the limiting of the limiting ring 24, so that the moving block 19 is prevented from deviating due to the deflection of the screw 27 in the thread groove 25, and the stability is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied in the medium.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A safety valve comprising a delivery pipe (1), characterized in that: the pipe surface upper end of the conveying pipe (1) is provided with a connecting groove (5), an adjusting pipe (3) is movably sleeved in the connecting groove (5), the rear end of the pipe surface of the adjusting pipe (3) is communicated with a pressure relief pipe (17), the outer pipe surface of the conveying pipe (1) is provided with a limiting mechanism, the limiting mechanism comprises two lantern rings (2), the two lantern rings (2) are respectively positioned at the front side and the rear side of the connecting groove (5), and the inner ring surfaces of the two lantern rings (2) are fixedly sleeved with the outer wall of the conveying pipe (1);
the upper end of the adjusting pipe (3) is provided with an elastic mechanism.
2. A safety valve according to claim 1, wherein: two gag lever post (13) of outer pipe wall lower extreme fixedly connected with of control tube (3), the upper end of control tube (3) outer pipe wall front side is evenly fixed and is provided with rectangular block (12) of a set of equidistance, the upper end of control tube (3) outer pipe face rear side is run through and is had perpendicular groove (18), the height and this group of perpendicular groove (18) rectangular block (12) high matching.
3. A safety valve according to claim 1, wherein: the adjustable pipe is characterized in that a check ring (16) is fixedly arranged on a lower notch of the adjusting pipe (3), a circular ring (15) is movably sleeved on the outer surface of the adjusting pipe (3), the front end and the rear end of the outer circular surface of the circular ring (15) are fixedly connected with a second limiting rod (14), and the movable range of the circular ring (15) is between the first limiting rod (13) and the pressure relief pipe (17).
4. A safety valve according to claim 1, wherein: arc-shaped grooves (8) are formed in the upper end of the outer ring surface of each lantern ring (2), sliding grooves (10) are formed in the front and rear groove walls of each arc-shaped groove (8), clamping grooves (9) are formed in the middle of the groove surface of each arc-shaped groove (8), and arc-shaped plates (6) are movably arranged in each arc-shaped groove (8).
5. A safety valve according to claim 4, wherein: every both sides are all fixed around arc (6) are provided with draw runner (11), every draw runner (11) activity respectively sets up in spout (10) that correspond, every two limiting plates (28) of the equal fixedly connected with in last cambered surface middle part of arc (6), two fixedly connected with three connecting rod (7), three between the lantern ring (2) the both ends of connecting rod (7) are the lower three-terminal of controlling of two relative two sides of lantern ring (2) of fixed connection respectively.
6. A safety valve according to claim 3, wherein: when adjusting tube (3) lower extreme inserts in spread groove (5), two gag lever post two (14) are located two draw-in grooves (9) respectively, the rod height of gag lever post two (14) is the same with the groove depth of draw-in groove (9), two on same arc (6) the interval of limiting plate (28) is the same with the pole width of gag lever post (13).
7. A safety valve according to claim 1, wherein: the elastic mechanism comprises a top plate (4), the bottom surface of the top plate (4) is fixedly connected with the top surface of the adjusting pipe (3), the diameter of the top plate (4) is larger than the outer pipe diameter of the adjusting pipe (3), and a thread groove (25) is formed in the middle of the plate surface of the top plate (4).
8. A safety valve according to claim 7, wherein: the screw rod (27) is connected into the thread groove (25) through threads, the bottom end of the screw rod (27) is a spherical surface, a turntable (26) is fixedly connected to the upper end of the screw rod (27), a moving block (19) is attached to the bottom end of the screw rod (27), a connecting block (22) is fixedly connected to the rear end of the moving block (19), and a through groove (23) is formed in the surface of the connecting block (22).
9. A safety valve according to claim 8, wherein: the lower surface of the moving block (19) is fixedly connected with a spring (20), the lower end of the spring (20) is fixedly connected with a piston block (21), and the annular surfaces of the piston block (21) and the moving block (19) are attached to the inner wall of the adjusting pipe (3).
10. A safety valve according to claim 1, wherein: spacing ring (24) have been cup jointed in the surface activity of control tube (3), spacing ring (24) surface is equipped with the breach, the size and the rectangular block (12) size of spacing ring (24) surface breach match, the ring footpath of spacing ring (24) matches with the groove footpath of logical groove (23), and the interval of two upper and lower adjacent rectangular blocks (12) is the same with the ring height of spacing ring (24), the front end activity of connecting block (22) sets up in erecting groove (18).
CN202110894543.2A 2021-08-05 2021-08-05 Safety valve Active CN113653841B (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN114235265A (en) * 2022-02-23 2022-03-25 东营鼎洪石油技术开发有限公司 Oil field is with oil pressure seat that can install manometer fast
CN115325307A (en) * 2022-07-29 2022-11-11 安徽德锐迈液压机械有限公司 Hydraulic valve
CN117967845A (en) * 2024-03-28 2024-05-03 靖江市亚泰物流装备有限公司 Tank safety valve

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CN210566489U (en) * 2019-07-25 2020-05-19 太原市三力工控工程有限公司 Safety valve with protection structure for liquid transportation
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CN114235265A (en) * 2022-02-23 2022-03-25 东营鼎洪石油技术开发有限公司 Oil field is with oil pressure seat that can install manometer fast
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CN117967845A (en) * 2024-03-28 2024-05-03 靖江市亚泰物流装备有限公司 Tank safety valve
CN117967845B (en) * 2024-03-28 2024-06-25 靖江市亚泰物流装备有限公司 Tank safety valve

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