CN110410619B - Expansion joint protection tube - Google Patents
Expansion joint protection tube Download PDFInfo
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- CN110410619B CN110410619B CN201910747346.0A CN201910747346A CN110410619B CN 110410619 B CN110410619 B CN 110410619B CN 201910747346 A CN201910747346 A CN 201910747346A CN 110410619 B CN110410619 B CN 110410619B
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- 238000007789 sealing Methods 0.000 claims description 87
- 239000007788 liquid Substances 0.000 claims description 68
- 238000003780 insertion Methods 0.000 claims description 32
- 230000037431 insertion Effects 0.000 claims description 32
- 230000001681 protective effect Effects 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000006378 damage Effects 0.000 abstract description 18
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 14
- 230000008859 change Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Classifications
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L7/00—Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
- F16L7/02—Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic and sealing the pipes or cables inside the other pipes, cables or sleeves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
An expansion joint protection tube comprises a joint, a corrugated tube, a protection tube and a protection tube key; the number of the joints is two, and the inner diameter of the left joint is smaller than that of the right joint; the corrugated pipe is fixedly connected between the two joints; the number of the protection tubes is two, and the protection tubes are respectively inserted into the corresponding connectors; first grooves which are uniformly distributed are formed in the two joints; the diameter of the first groove is reduced from the joint to the direction of the corrugated pipe; the clamping shafts are fixedly connected in the grooves through springs; one end of the clamping shaft, which is close to the protection tube, is designed to be a spherical surface, and the clamping shaft is designed to be tightly attached to the inner wall of the corresponding first groove; the surfaces of the two protection pipes are provided with second grooves which are uniformly distributed; the expansion joint is mainly used for solving the problems that the existing expansion joint cannot be found in time when damaged and is easy to damage and replace in time and is troublesome to replace.
Description
Technical Field
The invention belongs to the technical field of expansion joint application, and particularly relates to an expansion joint protection pipe.
Background
Expansion joints are also conventionally called compensators, or expansion joints. It is composed of bellows, end pipe, support, flange and pipe. The expansion joint is a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses due to temperature differences and mechanical vibrations. The effective telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. And can also be used for noise reduction and vibration reduction. In order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the heating pipeline is heated, a compensator is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure are reduced.
The expansion joint that has now is most all damaged easily and whether unable accurate definite expansion joint damages, needs often to overhaul the expansion joint, and the damage of expansion joint just can be discover to the large-scale leakage appearing in the expansion joint itself, and it is more troublesome to change when the expansion joint damages, and the hardness of the material of expansion joint itself is not strong easily corroded, leads to the short maintenance of current expansion joint life to change frequently, and is laborious in time-consuming.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides an expansion joint protection pipe. The invention is mainly used for solving the problems that the existing expansion joint is damaged and cannot be found in time, is easy to damage, cannot be replaced in time and is troublesome to replace.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an expansion joint protection tube which comprises a joint, a corrugated tube, a protection tube and a protection tube key; the number of the joints is two, and the inner diameter of the left joint is smaller than that of the right joint; the corrugated pipe is fixedly connected between the two joints; the number of the protection tubes is two, and the protection tubes are respectively inserted into the corresponding connectors; first grooves which are uniformly distributed are formed in the two joints; the diameters of the first grooves are sequentially reduced from the joint to the corrugated pipe; the clamping shafts are fixedly connected in the grooves through springs; one end of the clamping shaft, which is close to the protection tube, is designed to be a spherical surface, and the clamping shaft is designed to be tightly attached to the inner wall of the corresponding first groove; the surfaces of the two protection pipes are provided with second grooves which are uniformly distributed; the second grooves correspond to the first grooves one by one, and the diameters of the openings of the second grooves are equal to the diameters of the corresponding first grooves; when the expansion joint works, the protection pipe is firstly inserted into the corresponding joint when the expansion joint is installed, in the process that the protection pipe is inserted into the corresponding joint, because the diameters of the clamping shafts are unequal and the second grooves are designed corresponding to the diameters of the clamping shafts, after the protection pipe is completely inserted into the corresponding joint, the clamping shafts are inserted into the corresponding second grooves under the action of the springs, the clamping of the joint and the protection pipe is realized, the operation is simple and convenient, the fastening degree of the clamped protection pipe is high, after the protection pipe is clamped, the expansion joint is installed on the joint through the protection pipe, the quick installation of the expansion joint is realized, the manpower and material resources are saved, meanwhile, after the protection pipe is fixed with the corresponding joint, the left side joint is an inlet, the right side joint is an outlet, because the diameter of the protection pipe in the right side joint is larger than the diameter of the protection pipe in the left side joint, after the, therefore, when liquid or gas flows through the expansion joint, the impact of the liquid or the gas on the side wall of the right protection pipe can be reduced, the service life of the protection pipe is prolonged, meanwhile, the protection pipe can prevent the liquid or the gas from directly impacting the inner wall of the corrugated pipe to cause the damage of the corrugated pipe, the corrugated pipe is protected, the service life of the corrugated pipe is prolonged, and the cost is saved.
Preferably, the joints are provided with uniformly arranged key slots; the key slot passes through the corresponding first groove design; key holes are formed in the clamping shafts; when the clamping shaft is clamped into the second groove, the inner wall of one side of the key hole, which is far away from the protection tube, is horizontal to the inner wall of one side of the key groove, which is far away from the protection tube, and the diameter of the key hole is larger than that of the key groove; the protection tube key comprises an air bag and an insertion rod; the air bag is fixedly connected with one end of the insertion rod; the diameter of the insertion rod is smaller than that of the key slot; the surface of the insertion rod is provided with third grooves which are uniformly distributed; a sliding block is connected in the third groove in a sliding manner; the sliding blocks in sliding connection with the third grooves correspond to the key holes in the clamping shafts one to one; the air bag is connected to the bottom of the third groove through an air passage formed in the inserting pipe; when the expansion joint needs to be detached or the protection pipe needs to be replaced, the insertion rod is manually inserted into the corresponding key groove, the sliding block faces to the direction of the first groove in the insertion process of the insertion rod, when the insertion pipe cannot be inserted continuously, the sliding block is located in the corresponding key hole, the air bag is pressed, air in the air bag flows into the bottom of the third groove through the air passage, the sliding block moves towards the direction of the first groove, the inner wall of the corresponding key hole is extruded in the moving process of the sliding block, the clamping shaft moves towards the direction of the first groove, the clamping shaft is separated from the second groove, the protection pipe is manually pulled out, after the protection pipe is separated from the corresponding joint, a new protection pipe is inserted into the corresponding joint, the air bag is loosened, the clamping shaft is clamped into the second groove again, the insertion rod is pulled out, the expansion joint is connected onto the pipeline, quick installation and replacement of the protection pipe are achieved, and, the material resources of using manpower sparingly need not to change other parts of expansion joint simultaneously, saves the cost, improves the life of expansion joint.
Preferably, a rubber layer is fixedly connected in the second groove; the two protection tubes are different in diameter; the inner diameter of the left protection pipe is smaller than that of the right protection pipe; the left protection tube can be inserted into the right protection tube; the outer surface of the part, inserted into the right protective pipe, of the left protective pipe is provided with a first sliding groove; the inner wall of the right protection tube is provided with a second sliding chute; the first sliding groove and the second sliding groove are both provided with sealing rings; cavities are formed in the rubber layers; the cavity is communicated with the bottom space of the first groove or the second groove and communicated with the air passage in the protection pipe; after the left protection tube is inserted into the right protection tube, the two sealing rings are arranged in a staggered mode; when in work, the clamping shaft is inserted into the corresponding second groove and then extrudes the rubber layer at the bottom of the second groove, so that the gas in the cavity of the rubber layer enters the corresponding chute through the air passage, thereby expanding and sliding the sealing ring in the chute, leading the sealing ring on the surface of the left protection tube to be tightly attached to the inner wall of the right protection tube, leading the sealing ring on the inner wall of the right protection tube to be tightly attached to the outer wall of the left protection tube, thereby effectively sealing the connection between the protection tubes, preventing the liquid or gas flowing in the protection tubes from flowing out of the protection tubes through the gaps between the protection tubes and contacting with the inner wall of the corrugated pipe, the corrugated pipe is extruded or corroded, thereby further protecting the corrugated pipe, prolonging the service life of the corrugated pipe, avoiding the waste of industrial materials caused by gas or liquid leakage, meanwhile, the compression strength of the protection tubes can be improved by mutually clinging the protection tubes, so that the service life of the protection tubes is prolonged.
Preferably, a first sealing ring is arranged between the outer wall of the protection pipe and the inner wall of the joint, and the first sealing ring is slidably connected with the outer wall of the protection pipe; the first sealing ring is positioned on one side of the second groove, which is far away from the corrugated pipe; first air holes are uniformly distributed on the surface of the first sealing ring; a sound generating sheet is fixedly connected in the first air hole; during operation, when the protective tube fracture or damaged, when the damaged department that the liquid or the gas that flow in the protective tube passes through the protective tube flows in the space between protective tube and the bellows, atmospheric pressure in the clearance between protective tube and the bellows rises, gaseous passes through the protective tube and corresponds and connects between the clearance outflow bellows outside, when the gas flows the first gas pocket on in-process gas through first sealing washer surface, drive the vibrations of pronunciation piece, thereby send the warning, remind the protective tube in the staff expansion joint to take place the damage, remind the staff in time to change, avoid causing too much gas or liquid to leak, avoid the leakage of gas or liquid to cause the influence to staff's personal safety when causing economic loss, it is long when the harm of gas or liquid to the bellows can be reduced to in time to change the protective tube, thereby improve the life of bellows.
Preferably, a second sealing ring is arranged on one side, away from the corrugated pipe, of the first sealing ring; the second sealing ring is fixedly connected to the outer wall of the protection pipe; the surface of the second sealing ring is provided with second air holes which are uniformly distributed, and the second air holes and the first air holes are arranged in a one-to-one correspondence manner; the first air holes and the second air holes are arranged in a staggered manner; a liquid sac is fixedly connected in the second air hole, and red liquid is filled in the liquid sac; the side surface of one side of the first sealing ring close to the second sealing ring is fixedly connected with a steel needle, and the steel needle can be inserted into the corresponding second air hole; in operation, when the protection tube takes place to leak, gaseous in-process that makes pronunciation piece vibrations sound production, promote first sealing washer to slide to second sealing washer direction, thereby make first sealing washer and second sealing washer laminate each other, thereby seal up first gas pocket through the second sealing washer, prevent the lasting leakage of gas or liquid, resources are saved in the time of reduce cost, first sealing washer removes the in-process to the second sealing washer, the steel needle inserts in the second gas pocket, make the sac damaged, red liquid outflow connects in the sac, avoid gaseous or liquid's continuation to leak when further reminding the staff to change the protection tube, and the cost is saved.
Preferably, the inner wall of one side of the second air hole, which is far away from the first air hole, is designed in an arc shape, and the arc-shaped edge extends to the joint of the liquid bag and the second air hole; the outer wall of the protection pipe and the inner wall of the joint are connected with the second sealing ring, and an arc-shaped opening is formed in one side, far away from the corrugated pipe, of the protection pipe; the during operation, keep away from one side inner wall arc design of first gas pocket through the second gas pocket, when the liquid bag is damaged, during red liquid flows, red liquid can flow outside to connecting along the arc mouth because the action of gravity, can avoid red liquid to be detained in protection tube and joint clearance, can't remind the staff, lead to the bellows to last the pressurized and receive the corruption, cause the damage of bellows, cause the damage of first sealing washer and second sealing washer simultaneously, can't prevent the leakage of gas or liquid, cause the outflow in a large number of gas or liquid, and resources are wasted, the polluted environment.
The invention has the following beneficial effects:
1. according to the expansion joint protection pipe, the protection pipe is arranged, when the protection pipe is inserted into the joint, the clamping shaft in the first groove is clamped on the second groove through the acting force of the spring, the left protection pipe is inserted into the right protection pipe, and the first sealing ring and the second sealing ring are arranged in a staggered mode, so that when liquid or gas flows through the expansion joint, the impact of the liquid or the gas on the side wall of the right protection pipe can be reduced, the service life of the protection pipe is prolonged, and the phenomenon that the liquid or the gas in the protection pipe overflows from gaps between the joint and the heat preservation pipe to cause resource waste and harm to a human body is avoided.
2. According to the expansion joint protection tube, the protection tube key is arranged and comprises the air bag, the insertion rod, the third groove, the air passage and the sliding block, when the insertion rod is inserted into the bottom of the key groove, the air bag is manually extruded, and when the sliding block drives the clamping shaft to be completely separated from the second groove, a new protection tube can be replaced, so that the time required for replacing an expansion joint can be saved, the service life of the expansion joint can be prolonged, and the replacement frequency of the expansion joint can be reduced.
3. According to the expansion joint protection tube, the sounding sheet is arranged, when the protection tube damages gas and passes through the first air hole in the surface of the first sealing ring, the sounding sheet is driven to vibrate, so that an alarm is given, a worker is reminded to replace the protection tube in time, excessive gas or liquid leakage is avoided, the influence of the gas or liquid leakage on the personal safety of the worker is avoided while economic loss is avoided, the damage duration of the gas or liquid to the corrugated tube can be reduced by replacing the protection tube in time, and the service life of the corrugated tube is prolonged.
4. According to the expansion joint protection tube, the second sealing ring is arranged, in the process that the sounding sheet vibrates to generate sound, the first sealing ring slides towards the second sealing ring and is attached to the second sealing ring to seal, meanwhile, the steel needle pierces the liquid bag and the liquid flows out of the joint, continuous leakage of gas or liquid is prevented, cost is reduced, resources are saved, workers are further reminded to replace the protection tube, continuous leakage of gas or liquid is avoided, and cost is saved.
Drawings
FIG. 1 is a body diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
figure 3 is a cross-sectional view of a protective tube key,
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
in the figure: the connecting piece comprises a joint 1, a first groove 11, a spring 12, a clamping shaft 13, a second groove 14, a key groove 15, a key hole 16, an arc-shaped opening 17, a corrugated pipe 2, a protection pipe 3, a rubber layer 31, an air channel 32, a first sliding chute 33, a second sliding chute 34, a sealing ring 35, a first sealing ring 36, a second sealing ring 36a, a sounding sheet 37, a liquid bag 37a, a first air hole 38, a second air hole 38a, a steel needle 39, a protection pipe key 4, an air bag 41, an insertion rod 42, a third groove 43, a sliding block 44 and an air channel 45.
Detailed Description
An expansion joint protection pipe according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1 to 4, the expansion joint protection tube 3 of the present invention includes a joint 1, a corrugated tube 2, a protection tube 3, and a protection tube key 4; the number of the joints 1 is two, and the inner diameter of the left joint is smaller than that of the right joint; the corrugated pipe 2 is fixedly connected between the two joints 1; the number of the protection tubes 3 is two, and the protection tubes are respectively inserted into the corresponding connectors 1; first grooves 11 which are uniformly distributed are formed in the two joints 1; the diameters of the first grooves 11 are sequentially reduced from the joint 1 to the corrugated pipe 2; the grooves are fixedly connected with clamping shafts 13 through springs 12; one end of the clamping shaft 13 close to the protection tube 3 is designed to be spherical, and the clamping shaft 13 is designed to be tightly attached to the inner wall of the corresponding first groove 11; the surfaces of the two protection pipes 3 are provided with second grooves 14 which are uniformly distributed; the second grooves 14 correspond to the first grooves 11 one by one, and the opening diameter of each second groove 14 is equal to the diameter of the corresponding first groove 11; when the expansion joint works, the protection pipe 3 is firstly inserted into the corresponding joint 1, in the process that the protection pipe 3 is inserted into the corresponding joint 1, due to the unequal diameters of the clamping shafts 13 and the design that the second grooves 14 correspond to the diameters of the clamping shafts 13, after the protection pipe 3 is completely inserted into the corresponding joint 1, the clamping shafts are inserted into the corresponding second grooves 14 under the action of the springs 12, the clamping of the joint 1 and the protection pipe 3 is realized, the operation is simple and convenient, the fastening degree of the clamped protection pipe 3 is high, after the protection pipe 3 is clamped, the expansion joint is installed on the joint 1 through the protection pipe 3, the quick installation of the expansion joint is realized, manpower and material resources are saved, meanwhile, after the protection pipe 3 is fixed with the corresponding joint 1, the left side joint 1 is an inlet, the right side joint 1 is an outlet, and because the diameter of the protection pipe 3 in the right side joint 1 is larger than the diameter of the protection pipe 3, after 3 chucking of protective tube, left side protective tube 3 inserts in the right side protective tube 3 to when flowing liquid or gas in the expansion joint, can reduce the impact of liquid or gas to 3 lateral walls of right side protective tube, thereby improve the life of protective tube 3, simultaneously through setting up protective tube 3, can prevent that liquid or gas from directly impacting 2 inner walls of bellows, cause bellows 2's damage, protect bellows 2, improve bellows 2 life, practice thrift the cost.
As an embodiment of the present invention, the joints 1 are all provided with evenly arranged key slots 15; the key slot 15 is designed to pass through the corresponding first groove 11; key holes 16 are formed in the clamping shafts 13; when the clamping shaft 13 is clamped into the second groove 14, the inner wall of one side of the key hole 16, which is far away from the protective tube 3, is horizontal to the inner wall of one side of the key groove 15, which is far away from the protective tube 3, and the inner wall of one side of the key hole 16, which is close to the protective tube 3, is horizontal to the inner wall of one side of the key groove 15, which is close to the protective tube 3, after the clamping shaft 13 is separated from the second groove 14; the protective tube key 4 includes an air bag 41 and an insertion rod 42; the air bag 41 is fixedly connected with one end of the insertion rod 42; the diameter of the insertion rod 42 is smaller than that of the key slot 15; the surface of the insertion rod 42 is provided with third grooves 43 which are uniformly distributed; a sliding block 44 is connected in the third groove 43 in a sliding manner; the sliding blocks 44 slidably connected with the third grooves 43 correspond to the key holes 16 in the clamping shaft 13 one by one; the air bag 41 is connected to the bottom of the third groove 43 through an air passage 45 formed in the insertion pipe; when the expansion joint needs to be detached or the protection pipe 3 needs to be replaced, the insertion rod 42 is manually inserted into the corresponding key slot 15, the slide block 44 faces the direction of the first groove 11 in the insertion process of the insertion rod 42, when the insertion pipe cannot be inserted continuously, the slide block 44 is positioned in the corresponding key hole 16, the air bag 41 is pressed, air in the air bag 41 flows into the bottom of the third groove 43 through the air passage 45, the slide block 44 moves towards the direction of the first groove 11, the inner wall of the corresponding key hole 16 is pressed in the moving process of the slide block 44, the clamping shaft 13 moves towards the direction of the first groove 11, the clamping shaft 13 is separated from the second groove 14, the protection pipe 3 is manually pulled out, after the protection pipe 3 is separated from the corresponding joint 1, a new protection pipe 3 is inserted into the corresponding joint 1, the air bag 41 is released, the clamping shaft 13 is clamped into the second groove 14 again, the insertion rod 42 is pulled out, and the expansion joint is connected to the pipeline, realize the quick installation and the change of protection tube 3, and change process convenient and fast, the material resources of using manpower sparingly need not to change other parts of expansion joint simultaneously, saves the cost, improves the life of expansion joint.
As an embodiment of the present invention, a rubber layer 31 is fixedly connected inside the second groove 14; the two protection tubes 3 have different diameters; the inner diameter of the left protection tube 3 is smaller than that of the right protection tube 3; the left protection tube 3 can be inserted into the right protection tube 3; the outer surface of the part of the left protection tube 3 inserted into the right protection tube 3 is provided with a first sliding chute 33; a second sliding groove 34 is formed in the inner wall of the right protection tube 3; the first sliding chute 33 and the second sliding chute 34 are both provided with a sealing ring 35; cavities are formed in the rubber layers 31; the cavity is communicated with the bottom space of the first groove 11 or the second groove 14 and is communicated with the air passage 32 in the protection tube 3; after the left protection tube is inserted into the right protection tube, the two sealing rings 35 are arranged in a staggered manner; when the corrugated pipe 2 protecting device works, after the clamping shaft 13 is inserted into the corresponding second groove 14, the rubber layer 31 at the bottom of the second groove 14 is extruded, gas in the cavity of the rubber layer 31 enters the corresponding sliding groove through the air passage 32, so that the sealing ring 35 in the sliding groove expands and slides, the sealing ring 35 on the surface of the left protecting pipe 3 is tightly attached to the inner wall of the right protecting pipe 3, the sealing ring 35 on the inner wall of the right protecting pipe 3 is tightly attached to the outer wall of the left protecting pipe 3, so that the joint between the protecting pipes 3 is effectively sealed, liquid or gas flowing in the protecting pipes 3 is prevented from flowing out of the protecting pipes 3 through gaps between the protecting pipes 3 and contacting with the inner wall of the corrugated pipe 2, extrusion or corrosion is caused to the corrugated pipe 2, so that the corrugated pipe 2 is further protected, the service life of the corrugated pipe 2, the compressive strength of the protective tube 3 can be improved, thereby improving the service life of the protective tube 3.
As an embodiment of the invention, a first sealing ring 36 is arranged between the outer wall of the protection tube 3 and the inner wall of the joint 1, and the first sealing ring 36 is slidably connected on the outer wall of the protection tube 3; the first sealing ring is positioned on one side of the second groove 14 far away from the corrugated pipe 2; the surface of the first sealing ring 36 is provided with first air holes 38 which are uniformly distributed; a sound generating sheet 37 is fixedly connected in the first air hole 38; when the protection tube 3 is broken or damaged during operation, when the liquid or gas flowing in the protection tube 3 flows into the gap between the protection tube 3 and the corrugated tube 2 through the damaged part of the protection tube 3, the air pressure in the gap between the protection tube 3 and the corrugated tube 2 rises, the gas flows out of the corrugated tube 2 through the gap between the protection tube 3 and the corresponding joint 1, when the gas passes through the first air hole 38 on the surface of the first sealing ring 36 during the gas flowing process, the sound-producing sheet 37 is driven to vibrate, thereby send the warning, remind protection tube 3 in the staff expansion joint to take place the damage, remind the staff in time to change, avoid causing too much gas or liquid to leak, avoid the leakage of gas or liquid to cause the influence to staff's personal safety when causing economic loss, it is long when the harm of bellows 2 can be reduced to in time changing protection tube 3, thereby improve the life of bellows 2.
As an embodiment of the present invention, a second sealing ring 36a is disposed on a side of the first sealing ring 36 away from the corrugated pipe 2; the second sealing ring 36a is fixedly connected to the outer wall of the protection tube 3; the surface of the second sealing ring 36a is provided with second air holes 38a which are uniformly distributed, and the second air holes 38a and the first air holes 38 are arranged in a one-to-one correspondence manner; the first air hole 38 is arranged in a staggered manner with the second air hole 38 a; a liquid sac 37a is fixedly connected in the second air hole 38a, and red liquid is filled in the liquid sac 37 a; the side surface of one side of the first sealing ring 36 close to the second sealing ring 36a is fixedly connected with a steel needle 39, and the steel needle 39 can be inserted into the corresponding second air hole 38 a; in operation, when the protection tube 3 leaks, gaseous in-process that makes the sound production piece 37 vibrations sound, promote first sealing washer 36 and slide to second sealing washer 36a direction, thereby make first sealing washer 36 and second sealing washer 36a laminate each other, thereby seal first gas pocket 38 through second sealing washer 36a, prevent the continuous leakage of gas or liquid, resources are saved when reduce cost, in first sealing washer 36 to second sealing washer 36a removal process, steel needle 39 inserts in the second gas pocket 38a, make liquid bag 37a damaged, red liquid outflow joint 1 in the liquid bag 37a, avoid the continuous leakage of gas or liquid when further reminding the staff to change protection tube 3, cost is saved.
As an embodiment of the present invention, the inner wall of the second air hole 38a on the side away from the first air hole 38 is designed to be arc-shaped, and the arc-shaped edge extends to the connection between the liquid bag 37a and the second air hole 38 a; the outer wall of the protection tube 3 and the inner wall of the joint 1 are connected with the second sealing ring 36a, and an arc-shaped opening 17 is arranged on one side, far away from the corrugated tube 2, of the protection tube; the during operation, keep away from one side inner wall arc design of first gas pocket 38 through second gas pocket 38a, after liquid bag 37a is damaged, during red liquid flows out, red liquid can flow out to connecting 1 outside along arc mouth 17 because of the action of gravity, can avoid red liquid to be detained in protection tube 3 and connecting 1 clearance, can't remind the staff, lead to bellows 2 to continue the pressurized and receive the corruption, cause the damage of bellows 2, cause the damage of first sealing washer 36 and second sealing washer 36a simultaneously, can't prevent the leakage of gas or liquid, cause the outflow in a large number of gas or liquid, and resources are wasted, the polluted environment.
The specific working process is as follows:
when the expansion joint works, firstly, the protection pipe 3 is inserted into the corresponding joint 1, in the process that the protection pipe 3 is inserted into the corresponding joint 1, because the diameters of the clamping shafts 13 are different, and the second grooves 14 are designed corresponding to the diameters of the clamping shafts 13, after the protection pipe 3 is completely inserted into the corresponding joint 1, the clamping shafts are inserted into the corresponding second grooves 14 under the action of the springs 12, so that the clamping of the joint 1 and the protection pipe 3 is realized, meanwhile, after the protection pipe 3 is fixed with the corresponding joint 1, the left side joint 1 is an inlet, the right side joint 1 is an outlet, because the diameter of the protection pipe 3 in the right side joint 1 is larger than the diameter of the protection pipe 3 in the left side joint 1, after the protection pipe 3 is clamped, the left side protection pipe 3 is inserted into the right side protection pipe 3, therefore, when liquid or gas flows through the expansion joint, the impact of the liquid or gas on the side wall of the right side protection pipe 3 can be reduced, when, by manually inserting the insertion rod 42 into the corresponding key slot 15, the slider 44 is moved towards the first groove 11 during the insertion of the insertion rod 42, when the insertion tube cannot be inserted any more, the slider 44 is positioned in the corresponding key hole 16, the air bag 41 is pressed, the air in the air bag 41 flows into the bottom of the third groove 43 through the air passage, the slider 44 is moved towards the first groove 11, the inner wall of the corresponding key hole 16 is pressed during the movement of the slider 44, the latch shaft 13 is moved towards the first groove 11, the latch shaft 13 is separated from the second groove 14, the protection tube 3 is manually pulled out, after the protection tube 3 is separated from the corresponding joint 1, a new protection tube 3 is inserted into the corresponding joint 1, the air bag 41 is released, the latch shaft 13 is re-latched into the second groove 14, the insertion rod 42 is pulled out, the expansion joint is connected to the tube, the rubber layer 31 at the bottom of the second groove 14 is pressed after the latch shaft 13 is inserted into the corresponding second groove 14, the gas in the cavity of the rubber layer 31 enters the corresponding sliding groove through the gas passage, so that the sealing ring 35 in the sliding groove expands and slides, the sealing ring 35 on the surface of the left protection tube 3 is tightly attached to the inner wall of the right protection tube 3, the sealing ring 35 on the inner wall of the right protection tube 3 is tightly attached to the outer wall of the left protection tube 3, so that the joint between the protection tubes 3 is effectively sealed, when the protection tube 3 is broken or damaged, the liquid or gas flowing in the protection tube 3 flows into the gap between the protection tube 3 and the corrugated tube 2 through the damaged part of the protection tube 3, the gas pressure in the gap between the protection tube 3 and the corrugated tube 2 rises, the gas flows out of the corrugated tube 2 through the gap between the protection tube 3 and the corresponding joint 1, when the gas flows through the first gas hole 38 on the surface of the first sealing ring 36, the sounding sheet 37 is driven to, in the process of making the sound generating piece 37 vibrate and generate sound by air, the first sealing ring 36 is pushed to slide towards the second sealing ring 36a, so that the first sealing ring 36 and the second sealing ring 36a are attached to each other, the first air hole 38 is sealed by the second sealing ring 36a, in the process of moving the first sealing ring 36 towards the second sealing ring 36a, the steel needle 39 is inserted into the second air hole 38a, the liquid bag 37a is damaged, the red liquid in the liquid bag 37a flows out of the joint 1, the inner wall of one side, far away from the first air hole 38, of the second air hole 38a is designed in an arc shape, and when the red liquid flows out after the liquid bag 37a is damaged, the red liquid can flow out of the joint 1 along the arc-shaped opening 17 under the action of gravity.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An expansion joint protection tube comprises a joint (1), a corrugated tube (2), a protection tube (3) and a protection tube key (4); it is characterized in that; the number of the joints (1) is two, and the inner diameter of the left joint (1) is smaller than that of the right joint (1); the corrugated pipe (2) is fixedly connected between the two joints (1); the number of the protection tubes (3) is two, and the protection tubes are respectively inserted into the corresponding connectors (1); first grooves (11) which are uniformly distributed are formed in the two joints (1); the diameters of the first grooves (11) are sequentially reduced from the joint (1) to the corrugated pipe (2); the grooves are fixedly connected with clamp shafts (13) through springs (12); one end, close to the protection tube (3), of the clamping shaft (13) is designed to be spherical, and the clamping shaft (13) is designed to be tightly attached to the inner wall of the corresponding first groove (11); the surfaces of the two protection pipes (3) are respectively provided with second grooves (14) which are uniformly distributed; the second grooves (14) correspond to the first grooves (11) one by one, and the diameters of the openings of the second grooves (14) are equal to the diameters of the corresponding first grooves (11);
the joints (1) are provided with uniformly arranged key grooves (15); the key slot (15) is designed to pass through the corresponding first groove (11); key holes (16) are formed in the clamping shafts (13); when the clamping shaft (13) of the key hole (16) is clamped into the second groove (14), the inner wall of one side, away from the protective tube (3), of the key hole (16) is horizontal to the inner wall of one side, away from the protective tube (3), of the key groove (15), meanwhile, the diameter of the key hole (16) is larger than that of the key groove (15), and after the clamping shaft (13) is separated from the second groove (14), the inner wall of one side, close to the protective tube (3), of the key hole (16) is horizontal to the inner wall of one side, close to the protective tube (3), of the key groove (15); the protection tube key (4) comprises an air bag (41) and an insertion rod (42); the air bag (41) is fixedly connected with one end of the insertion rod (42); the diameter of the insertion rod (42) is smaller than that of the key slot (15); the surface of the insertion rod (42) is provided with third grooves (43) which are uniformly distributed; a sliding block (44) is connected in the third groove (43) in a sliding manner; the air bag (41) is connected to the bottom of the third groove (43) through an air passage (45) formed in the insertion pipe.
2. An expansion joint protection pipe according to claim 1, wherein: a rubber layer (31) is fixedly connected in the second groove (14); the two protection tubes (3) have different diameters; the inner diameter of the left protection tube (3) is smaller than that of the right protection tube (3); the left protection tube (3) can be inserted into the right protection tube (3); a first sliding groove (33) is formed in the outer surface of the part, inserted into the right protection tube (3), of the left protection tube (3); a second sliding groove (34) is formed in the inner wall of the right protection tube (3); the first sliding groove (33) and the second sliding groove (34) are both provided with a sealing ring (35); cavities are formed in the rubber layers (31); the cavity is communicated with the bottom space of the first groove (11) or the second groove (14), and the cavity is communicated with an inner air passage (32) of the protection tube (3); after the left protection tube is inserted into the right protection tube, the two sealing rings (35) are arranged in a staggered mode.
3. An expansion joint protection pipe according to claim 1, wherein: a first sealing ring (36) is arranged between the outer wall of the protection tube (3) and the inner wall of the joint (1), and the first sealing ring (36) is connected to the outer wall of the protection tube (3) in a sliding manner; the first sealing ring is positioned on one side, far away from the corrugated pipe (2), of the second groove (14); first air holes (38) are uniformly formed in the surface of the first sealing ring (36); the first air hole (38) is fixedly connected with a sound producing sheet (37).
4. The expansion joint protection pipe according to claim 3, wherein: a second sealing ring (36a) is arranged on one side, away from the corrugated pipe (2), of the first sealing ring (36); the second sealing ring (36a) is fixedly connected to the outer wall of the protection tube (3); the surface of the second sealing ring (36a) is provided with second air holes (38a) which are uniformly distributed, and the second air holes (38a) and the first air holes (38) are arranged in a one-to-one correspondence manner; the first air hole (38) and the second air hole (38a) are arranged in a staggered mode; a liquid sac (37a) is fixedly connected in the second air hole (38a), and red liquid is filled in the liquid sac (37 a); and the side surface of one side of the first sealing ring (36) close to the second sealing ring (36a) is fixedly connected with a steel needle (39), and the steel needle (39) can be inserted into the corresponding second air hole (38 a).
5. The expansion joint protection pipe according to claim 4, wherein: the inner wall of one side of the second air hole (38a), which is far away from the first air hole (38), is designed in an arc shape, and the arc edge extends to the joint of the liquid bag (37a) and the second air hole (38 a); the outer wall of the protection pipe (3) is connected with the inner wall of the joint (1), and an arc-shaped opening (17) is arranged on one side, away from the corrugated pipe (2), of the second sealing ring (36 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747346.0A CN110410619B (en) | 2019-08-14 | 2019-08-14 | Expansion joint protection tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747346.0A CN110410619B (en) | 2019-08-14 | 2019-08-14 | Expansion joint protection tube |
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| Publication Number | Publication Date |
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| CN110410619A CN110410619A (en) | 2019-11-05 |
| CN110410619B true CN110410619B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910747346.0A Active CN110410619B (en) | 2019-08-14 | 2019-08-14 | Expansion joint protection tube |
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| CN (1) | CN110410619B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112610759B (en) * | 2020-12-14 | 2022-06-24 | 湖北卓腾机电有限公司 | Sealing ring and connecting piece for pipeline reducing connection and use method |
| CN114256681B (en) * | 2022-03-01 | 2022-05-27 | 灏讯电缆连接器制造(常州)有限公司 | Sealing structure and quick plugging connector with same |
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| DE1775487A1 (en) * | 1968-08-17 | 1971-09-16 | Berghoefer Hans Dipl Kfm | Multi-walled pipe expansion joint |
| CN201462306U (en) * | 2009-07-28 | 2010-05-12 | 石家庄巨力科技有限公司 | High temperature resistant anti-explosion auto-alarm corrugated compensator capable of being monitored |
| KR20120098009A (en) * | 2011-02-28 | 2012-09-05 | 주식회사 진흥기공 | Bellows type joint using function safety and alarm |
| CN202629426U (en) * | 2012-05-08 | 2012-12-26 | 中国海洋石油总公司 | Quick self-locking connector of marine riser |
| CN202733298U (en) * | 2012-06-12 | 2013-02-13 | 金川集团股份有限公司 | Pipeline ripple compensator |
| CN203847892U (en) * | 2014-05-06 | 2014-09-24 | 江苏晨光波纹管有限公司 | Corrugated pipe expansion joint with warning device |
| CN204805795U (en) * | 2015-06-09 | 2015-11-25 | 象山普精金属制品厂 | Pipe fitting is connected in stainless steel screens |
| CN105156826A (en) * | 2015-09-29 | 2015-12-16 | 江苏广通管业制造有限公司 | Expansion joint with function of warning |
| CN106051470A (en) * | 2016-05-18 | 2016-10-26 | 沈阳化工大学 | Ripple compensator wireless monitoring system based on internet of things |
| CN206563149U (en) * | 2017-03-07 | 2017-10-17 | 鞍钢民企金属软管厂 | Blanking expansion joint |
| CN106885088A (en) * | 2017-03-16 | 2017-06-23 | 沈向东 | Internal leakage early warning type sleeve expansion joint |
| CN206637171U (en) * | 2017-04-05 | 2017-11-14 | 洛阳双瑞特种装备有限公司 | A kind of external pressure bellows expansion joint with leak detection and safeguard function |
| CN108591662A (en) * | 2017-11-10 | 2018-09-28 | 江苏飞天管道设备有限公司 | A kind of pipeline connection expansion joint |
| CN207906251U (en) * | 2018-02-01 | 2018-09-25 | 温州职业技术学院 | A kind of intelligent power distribution teaching equipment assembling structure |
| CN108662314B (en) * | 2018-05-28 | 2019-12-06 | 宁波恒元精工管阀科技有限公司 | Pipe joint |
| CN208687211U (en) * | 2018-06-25 | 2019-04-02 | 湖州贝德流体设备有限公司 | A kind of connection structure for hot fluid pipeline |
| CN208417891U (en) * | 2018-07-13 | 2019-01-22 | 惠州市兴强达管业有限公司 | A kind of spigot-and-socket PE feed pipe |
| CN209130372U (en) * | 2018-11-02 | 2019-07-19 | 苗光明 | A kind of oil extraction pipeline leak-proof device |
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Inventor after: Lu Yong Inventor after: Wang Lu Inventor after: Ding Yongfeng Inventor after: Hu Kunpeng Inventor after: Wang Peng Inventor after: LAN Feng Inventor before: Request for anonymity |
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Effective date of registration: 20201210 Address after: Industrial concentration zone (Loudong Village), Louzhuang Town, Jiangyan District, Taizhou City, Jiangsu Province Applicant after: JIANGSU SUCHUANG PIPE INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 230000 Room 408, science and technology innovation center, Taohua Industrial Park, intersection of Fanfu Avenue and feicui Road, economic development zone, Hefei City, Anhui Province Applicant before: Hu Kunpeng |
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Denomination of invention: A type of expansion joint protective tube Granted publication date: 20210101 Pledgee: Agricultural Bank of China Limited Taizhou Jiangyan Branch Pledgor: JIANGSU SUCHUANG PIPE INDUSTRY TECHNOLOGY CO.,LTD. Registration number: Y2024980041510 |