CN111396654A - Natural gas conveying pipe joint - Google Patents
Natural gas conveying pipe joint Download PDFInfo
- Publication number
- CN111396654A CN111396654A CN202010182803.9A CN202010182803A CN111396654A CN 111396654 A CN111396654 A CN 111396654A CN 202010182803 A CN202010182803 A CN 202010182803A CN 111396654 A CN111396654 A CN 111396654A
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- China
- Prior art keywords
- head
- female
- male head
- fastening screw
- male
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000003345 natural gas Substances 0.000 title claims abstract description 27
- 239000010985 leather Substances 0.000 claims description 23
- 210000002445 nipple Anatomy 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention belongs to the technical field of pipe connectors, and particularly relates to a natural gas conveying pipe connector which comprises a male connector and a female connector; a concave part is arranged on the male head outer ring; the concave part is arranged close to one end of the male head, and one end of the male head is connected with the female head; the female head outer ring is symmetrically provided with a buckle structure; the buckle structure comprises an elastic plate, a sliding block, a sliding groove and a fastening screw; the sliding groove is formed in the outer ring of the female head, a sliding block is arranged in the sliding groove, one end of the elastic plate is connected to the side wall of the sliding block, and a fastening screw is arranged at the other end of the elastic plate; when the male head extends into the female head, the elastic plate is attached to the outer ring of the concave part, and one end of the fastening screw extends into the concave part; through the cooperation between public head, female head and the buckle structure, realize being connected of public head and female head.
Description
Technical Field
The invention belongs to the technical field of pipe connectors, and particularly relates to a natural gas conveying pipe connector.
Background
The pipe joint is a sealed pipe joint suitable for non-corrosive or corrosive media such as oil, water, gas and the like, has the characteristics of flexible specification requirements of an aluminum plastic pipe, firm connection, good sealing performance and the like after being connected with a pipeline, and is widely applied to systems such as oil refining, chemical engineering, light industry, spinning, national defense, metallurgy, aviation, ships and the like; it is also suitable for hydraulic transmission pipelines of various mechanical engineering, machine tool equipment and the like.
For natural gas pipe joints, the natural gas pipe joints are various in varieties and are irregular at present, and generally are connected by threads, if a female head and a male head of the pipe joint are connected with a pipeline for conveying natural gas in advance, and then the female head and the male head are connected in a threaded rotating manner, the trouble of connecting the pipe joints of operators is caused, and the pipeline for conveying the natural gas and the female head or the male head need to rotate simultaneously; for clamping type natural gas pipe joints, the market is very few at present, and for this reason, the company invented a natural gas pipe joint connected by a clamping manner.
The utility model provides a petroleum and gas industry pipe thread joint which is provided in application number 2010102184548, this pipe thread joint is formed by having the body of external screw thread and having the coupling of internal screw thread to connect, at body and coupling connection in-process, need to body and coupling both reverse rotations for in the rotatory collar that gets into of body, still need fastening tool to carry out last fastening to both simultaneously, and the length of body also can give the operation workman and carry out the trouble of fastening to both.
Disclosure of Invention
To remedy the deficiencies of the prior art and to solve the problems described in the background, the present invention proposes a natural gas delivery nipple.
The technical scheme adopted by the invention for solving the technical problems is as follows: the natural gas conveying pipe connector comprises a male connector and a female connector; a concave part is arranged on the male head outer ring; the concave part is arranged close to one end of the male head, and one end of the male head is connected with the female head; the female head outer ring is symmetrically provided with a buckle structure; the buckle structure comprises an elastic plate, a sliding block, a sliding groove and a fastening screw; the sliding groove is formed in the outer ring of the female head, a sliding block is arranged in the sliding groove, one end of the elastic plate is connected to the side wall of the sliding block, and a fastening screw is arranged at the other end of the elastic plate; when the male head extends into the female head, the elastic plate is attached to the outer ring of the concave part, and one end of the fastening screw extends into the concave part; the male head and the female head are connected through the matching of the male head, the female head and the buckle structure; when the device works, the male head is inserted into the female head, the other ends of the two elastic plates are buckled in the concave part, meanwhile, one sections of the two elastic plates pull the sliding blocks to slide upwards in the sliding grooves, after the other ends of the elastic plates are buckled in the concave part, the sliding blocks are located at the inner upper ends of the sliding grooves at the moment, the sliding blocks are tightly attached to and extrude the side walls of the sliding grooves, then the fastening screws are rotated, one ends, attached to the concave part, of the elastic plates are gradually far away from the concave part, meanwhile, the sliding blocks pull the female head, the female head is enabled to be extruded by the female head, and then the female head and the male head are tightly attached together; if the male head and the female head are loosened, the end part of the elastic plate can move upwards along the fastening screw by rotating the fastening screw, and meanwhile, the female head is pulled by the elastic plate through the sliding block, so that the firmness between the female head and the male head is enhanced again; simultaneously through buckle structure with the fastening between female head and the public head together, when having avoided passing through threaded connection between female head and the public head, because of receiving the workspace limit, can't be to carrying out the emergence of screw fastening phenomenon between female head and the female head.
Preferably, the other end of the male head is provided with a lantern ring, the lantern ring is sleeved on an outer ring of the male head, a pipeline for conveying natural gas is sleeved between the inner ring of the lantern ring and the outer ring of the male head, pull rods are symmetrically arranged on the outer ring of the lantern ring, one ends of the pull rods are L-shaped, one ends of the pull rods extend into the concave portions, when the male head is connected with the female head, one ends of the pull rods are arranged at the lower ends of the fastening screws, the pipeline sleeved on the male head is fastened through the lantern ring, the pull rods and the fastening screws, in the process of fastening the male head and the female head through the fastening screws, the outer ring sleeved on the outer ring of the male head moves towards the female head, meanwhile, the pipeline sleeved between the inner ring of the lantern ring and the outer ring of the male head is gradually extruded on the outer ring of the male head, meanwhile, the fastening screws can be rotated, after the fastening screws rotate, the lower ends of the fastening screws extrude the pull rods to enable the pull rods to approach the inner bottom surfaces of the concave portions, so that the lantern ring moves towards the direction of the concave portions, and.
Preferably, a tension spring is arranged in the sliding groove; the tension spring is connected between the sliding block and the sliding groove; the firmness between the male head and the female head is enhanced through the tension spring; the during operation, fastening screw fasten the elastic plate when the concave part, and the slider is dragged to the elastic plate, then the female head of slider extrusion, female head presses public head after that, and the slider is dragged to the extension spring simultaneously, and the elastic plate is dragged to the slider, and the concave part is pressed again to the elastic plate for mutual extrusion force between public head and the female head strengthens once more, thereby increases the fastness between public head and the female head.
Preferably, a rubber leather pad is arranged at the joint between the male head and the female head, a circular ring is arranged on the outer ring of the male head, and the circular ring is arranged close to the joint between the male head and the female head; the air tightness between the male head and the female head is enhanced through the matching between the circular ring and the rubber leather pad; during operation, public head stretches into female inside back, and the ring on the public head outer lane is attached and extrudees the rubber leather pad, extrudees the rubber leather pad when public head for the rubber leather pad outer lane is bloated, then the ring can extrude the rubber leather pad once more, makes the rubber leather pad can stabilize the attached department between public head and female head, thereby increases the gas tightness between public head and the female head.
Preferably, the upper end of each fastening screw is provided with a through hole, a first rod is arranged in each through hole, and the first rods are in clearance fit with the through holes; the first rod is matched with the fastening screw to realize the rotary fastening of the fastening screw; when the tool is used, the first rod can rotate in the radial direction of the fastening screw in the absence of a tool for rotating the fastening screw, the first rod is pushed to rotate around the central axis of the fastening screw, when the first rod rotates to touch the elastic plate, the first rod can slide in the through hole, so that the first rod does not touch the elastic plate any more, and then the first rod is pushed to rotate the fastening screw, so that the purpose of rotating the fastening screw in the radial direction under the condition of not using an external tool is achieved; meanwhile, after the fastening screw rotates well, one end of the first rod can be abutted against one side of the elastic plate, and the fastening screw can be prevented from rotating automatically.
Preferably, the side wall of the concave part is symmetrically provided with stop blocks; the central position of the stop block is inclined like the concave part, and when the male head is connected with the female head, the pull rod is arranged between the stop block and the inner bottom surface of the concave part; the male head is prevented from being separated from the pipeline by the stop block after the fastening screw is loosened; the during operation, if when lax appears in the fastening screw, the fastening screw is no longer extrudeed the pull rod promptly, the pipeline is under natural gas's effect this moment for there is the trend of kind mutual separation between pipeline and the public head, the pipeline breaks away from public head when serious, under the effect of pull rod on the lantern ring, the pull rod is detained in the dog, make the pull rod be difficult to break away from inside the concave part, and simultaneously, the lantern ring is withheld to the pull rod, make the lantern ring can be always with the pipeline extrusion on the outer lane of public head, thereby avoid the pipeline to break away from the emergence of public head outer lane phenomenon.
The invention has the technical effects and advantages that:
1. according to the natural gas conveying pipe connector, the fastening screw is rotated, the elastic plate moves upwards along the fastening screw, the female head is pulled by the elastic plate through the sliding block, the female head is attached to the male head in a clinging mode, connection between the male head and the female head is achieved, meanwhile, the female head and the male head are fastened together through the buckle structure, and the phenomenon that the female head and the female head cannot be fastened in a threaded mode due to the fact that working space is limited when the female head and the male head are connected in a threaded mode is avoided.
2. According to the natural gas conveying pipe connector, after the male head extends into the female head, the circular ring on the outer ring of the male head is attached to and extrudes the rubber leather pad, when the male head extrudes the rubber leather pad, the outer ring of the rubber leather pad is expanded, then the circular ring can extrude the rubber leather pad again, and the rubber leather pad can be stably attached to the position between the male head and the female head, so that the air tightness between the male head and the female head is improved.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is an enlarged view of a portion of FIG. 3 at C;
in the figure: male head 1, concave part 11, stop 111, lantern ring 12, pull rod 121, ring 13, female head 2, rubber cushion 21, buckle structure 3, elastic plate 31, slider 32, spout 33, extension spring 331, fastening screw 34, first pole 341.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
As shown in fig. 1 to 5, the natural gas delivery connector according to the present invention includes a male connector 1 and a female connector 2, wherein a concave portion 11 is provided on an outer ring of the male connector 1; the concave part 11 is arranged close to one end of the male head 1, and one end of the male head 1 is connected with the female head 2; the outer ring of the female head 2 is symmetrically provided with a buckle structure 3; the buckle structure 3 comprises an elastic plate 31, a sliding block 32, a sliding groove 33 and a fastening screw 34; the sliding groove 33 is formed in the outer ring of the female head 2, a sliding block 32 is arranged in the sliding groove 33, one end of the elastic plate 31 is connected to the side wall of the sliding block 32, and a fastening screw 34 is arranged at the other end of the elastic plate 31; when the male head 1 extends into the female head 2, the elastic plate 31 is attached to the outer ring of the concave part 11, and one end of the fastening screw 34 extends into the concave part 11; the male head 1 and the female head 2 are connected through the matching among the male head 1, the female head 2 and the buckle structure 3; when the device works, the male head 1 is inserted into the female head 2, the other ends of the two elastic plates 31 are buckled in the concave part 11, meanwhile, one section of each of the two elastic plates 31 pulls the sliding block 32 to slide upwards in the sliding groove 33, after the other ends of the elastic plates 31 are buckled in the concave part 11, the sliding block 32 is located at the inner upper end of the sliding groove 33, the sliding block 32 is tightly attached to and extrudes the side wall of the sliding groove 33, then the fastening screw 34 is rotated, then, one end, attached to the concave part 11, of each elastic plate 31 is gradually far away from the concave part 11, meanwhile, the elastic plates 31 pull the sliding block 32, the female head 2 is pulled by the sliding block 32, so that the female head 2 extrudes the male head 1, and then, the female; if the male head 1 and the female head 2 are loosened, the fastening screw 34 can be rotated to enable the end of the elastic plate 31 to move upwards along the fastening screw 34, and meanwhile, the elastic plate 31 pulls the female head 2 through the sliding block 32, so that the firmness between the female head 2 and the male head 1 is enhanced again; simultaneously through buckle structure 3 with female 2 and public 1 between the fastening together, when having avoided passing through threaded connection between female 2 and the public 1, because of receiving the workspace limit, can't carry out the emergence of screw fastening phenomenon between female 2 and the female 2.
As a specific embodiment of the invention, the other end of the male head 1 is provided with a lantern ring 12, the lantern ring 12 is sleeved on the outer ring of the male head 1, a pipeline for conveying natural gas is sleeved between the inner ring of the lantern ring 12 and the outer ring of the male head 1, the outer ring of the lantern ring 12 is symmetrically provided with pull rods 121, one ends of the pull rods 121 are L-shaped, one ends of the pull rods 121 extend into the concave part 11, when the male head 1 is connected with the female head 2, one ends of the pull rods 121 are arranged at the lower end of fastening screws 34, the fastening of the pipeline sleeved on the male head 1 is realized through the cooperation between the lantern ring 12, the pull rods 121 and the fastening screws 34, in the working process, the lantern ring 12 sleeved on the outer ring of the male head 1 moves towards the female head 2 through the fastening screws 34, meanwhile, the pipeline sleeved between the inner ring of the lantern ring 12 and the outer ring of the male head 1 is gradually extruded on the outer ring of the male head 1, and simultaneously, when the pipeline is loosened from the male head 1 to the male head 1, the fastening screws 34 can rotate, the fastening screws 34 extrude the pull rods 34 to enable the pull rods to move towards the concave part 11, and further press the inner bottom surface of the lantern ring 12 of the outer ring 12, thereby preventing the pipeline from pressing the outer ring.
As a specific embodiment of the present invention, a tension spring 331 is disposed in the sliding groove 33; the tension spring 331 is connected between the slide block 32 and the sliding groove 33; the firmness between the male head 1 and the female head 2 is enhanced through the tension spring 331; the during operation, fastening screw 34 fastens elastic plate 31 when concave part 11, and slider 32 is dragged to elastic plate 31, then slider 32 extrudees female head 2, and female head 2 presses public first 1 after that, and extension spring 331 drags slider 32 simultaneously, and slider 32 drags elastic plate 31, elastic plate 31 and presses concave part 11 again for mutual extrusion force between public first 1 and the female head 2 strengthens once more, thereby increases the fastness between public first 1 and the female head 2.
As a specific embodiment of the invention, a rubber cushion 21 is arranged at the joint between the male head 1 and the female head 2, a circular ring 13 is arranged on the outer ring of the male head 1, and the circular ring 13 is arranged close to the joint between the male head 1 and the female head 2; the air tightness between the male head 1 and the female head 2 is enhanced through the matching between the circular ring 13 and the rubber cushion 21; during operation, public first 1 stretches into female 2 inside backs, and the ring 13 on public first 1 outer lane is attached and extrudees rubber leather pad 21, works as public first 1 extrusion rubber leather pad 21 for rubber leather pad 21 outer lane is bloated, then ring 13 can extrude rubber leather pad 21 once more, makes rubber leather pad 21 can stabilize the attached department between public first 1 and female 2, thereby increases the gas tightness between public first 1 and the female 2.
As a specific embodiment of the present invention, a through hole is formed at the upper end of each fastening screw 34, a first rod 341 is disposed in the through hole, and the first rod 341 is in clearance fit with the through hole; the first rod 341 is matched with the fastening screw 34 to realize the rotary fastening of the fastening screw 34; in operation, in the absence of a tool for rotating the fastening screw 34, the first rod 341 can rotate the fastening screw 34 in the radial direction to push the first rod 341 to rotate around the central axis of the fastening screw 34, and when the first rod 341 rotates to touch the elastic plate 31, the first rod 341 can slide in the through hole to make the first rod 341 not touch the elastic plate 31 any more, and then the first rod 341 is pushed to rotate the fastening screw 34, so that the purpose of rotating the fastening screw 34 in the radial direction without using an external tool is achieved; meanwhile, after the fastening screw 34 is rotated, one end of the first rod 341 can be abutted against one side of the elastic plate 31, so that the fastening screw 34 can be prevented from rotating by itself.
As a specific embodiment of the present invention, the side wall of the concave portion 11 is symmetrically provided with stoppers 111; the stopper 111 is inclined like the center of the concave part 11, and when the male head 1 is connected with the female head 2, the pull rod 121 is arranged between the stopper 111 and the inner bottom surface of the concave part 11; the stop block 111 prevents the male head 1 from separating from the pipeline after the fastening screw 34 is loosened; in operation, if fastening screw 34 appears when lax, fastening screw 34 no longer extrudeing pull rod 121 promptly, the pipeline is under natural gas's effect this moment, make the trend of planting the alternate segregation between pipeline and the public head 1, the pipeline breaks away from public head 1 when serious, under the effect of pull rod 121 on lantern ring 12, pull rod 121 is detained in dog 111, make pull rod 121 be difficult to break away from inside recess 11, and simultaneously, lantern ring 12 is pulled to pull rod 121, make lantern ring 12 can extrude the pipeline on public head 1's outer lane always, thereby avoid the pipeline to break away from the emergence of public head 1 outer lane phenomenon.
When the device works, the male head 1 is inserted into the female head 2, the other ends of the two elastic plates 31 are buckled in the concave part 11, meanwhile, one section of each of the two elastic plates 31 pulls the sliding block 32 to slide upwards in the sliding groove 33, after the other ends of the elastic plates 31 are buckled in the concave part 11, the sliding block 32 is located at the inner upper end of the sliding groove 33, the sliding block 32 is tightly attached to and extrudes the side wall of the sliding groove 33, then the fastening screw 34 is rotated, then, one end, attached to the concave part 11, of each elastic plate 31 is gradually far away from the concave part 11, meanwhile, the elastic plates 31 pull the sliding block 32, the female head 2 is pulled by the sliding block 32, so that the female head 2 extrudes the male head 1, and then, the female; if the male head 1 and the female head 2 are loosened, the fastening screw 34 can be rotated to enable the end of the elastic plate 31 to move upwards along the fastening screw 34, and meanwhile, the elastic plate 31 pulls the female head 2 through the sliding block 32, so that the firmness between the female head 2 and the male head 1 is enhanced again; meanwhile, the female head 2 and the male head 1 are fastened together through the buckle structure 3, so that the phenomenon that the female head 2 and the male head 2 cannot be fastened through threads due to limited working space when the female head 2 is connected with the male head 1 through the threads is avoided; in the process of fastening the male head 1 and the female head 2 through the fastening screw 34, the lantern ring 12 sleeved on the outer ring of the male head 1 moves towards the female head 2, meanwhile, the pipeline sleeved between the inner ring of the lantern ring 12 and the outer ring of the male head 1 is gradually extruded on the outer ring of the male head 1, meanwhile, if the pipeline is loosened from the male head 1, the fastening screw 34 can be rotated, after the fastening screw 34 rotates, the lower end of the fastening screw 34 extrudes the pull rod 121, so that the pull rod 121 approaches to the inner bottom surface of the concave part 11, the lantern ring 12 moves towards the direction of the concave part 11, and then the lantern ring 12 more tightly presses the pipeline on the outer ring of the male head 1, thereby avoiding the phenomenon that the pipeline is separated from the outer ring of the male head 1; when the fastening screw 34 fastens the elastic plate 31 in the concave portion 11, the elastic plate 31 pulls the sliding block 32, then the sliding block 32 extrudes the female head 2, then the female head 2 presses the male head 1, meanwhile, the tension spring 331 pulls the sliding block 32 through the tension spring 331, the sliding block 32 pulls the elastic plate 31, and the elastic plate 31 presses the concave portion 11 again, so that the mutual extrusion force between the male head 1 and the female head 2 is enhanced again, and the firmness between the male head 1 and the female head 2 is increased; after the male head 1 extends into the female head 2, the circular ring 13 on the outer ring of the male head 1 is attached to and extrudes the rubber leather pad 21, when the male head 1 extrudes the rubber leather pad 21, the outer ring of the rubber leather pad 21 is expanded, then the circular ring 13 can extrude the rubber leather pad 21 again, so that the rubber leather pad 21 can be stably attached to the position between the male head 1 and the female head 2, and the air tightness between the male head 1 and the female head 2 is improved; in the absence of a tool for rotating the fastening screw 34, the fastening screw 34 can be radially rotated by the first rod 341, the first rod 341 is pushed to rotate around the central axis of the fastening screw 34, when the first rod 341 rotates to touch the elastic plate 31, the first rod 341 can slide in the through hole, so that the first rod 341 does not touch the elastic plate 31 any more, and then the first rod 341 is pushed to rotate the fastening screw 34, thereby achieving the purpose of radially rotating the fastening screw 34 without using an external tool; meanwhile, after the fastening screw 34 is rotated, one end of the first rod 341 can be abutted against one side of the elastic plate 31, so that the fastening screw 34 can be prevented from rotating automatically; if fastening screw 34 appears lax, fastening screw 34 no longer extrudeing pull rod 121 promptly, the pipeline is under natural gas's effect this moment for there is the trend of mutual separation between pipeline and the public head 1, the pipeline breaks away from public head 1 when serious, under the effect of pull rod 121 on lantern ring 12, pull rod 121 detains in dog 111, make pull rod 121 be difficult to break away from inside recess 11, and simultaneously, pull rod 121 withstands lantern ring 12, make lantern ring 12 can extrude the pipeline on the outer lane of public head 1 always, thereby avoid the pipeline to break away from the emergence of public head 1 outer lane phenomenon.
The foregoing illustrates and describes the principles, essential features and advantages of the invention in operation. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a natural gas conveying connector, includes public head (1) and female head (2), its characterized in that: a concave part (11) is arranged on the outer ring of the male head (1); the concave part (11) is arranged close to one end of the male head (1), and one end of the male head (1) is connected with the female head (2); the outer ring of the female head (2) is symmetrically provided with a buckle structure (3); the buckle structure (3) comprises an elastic plate (31), a sliding block (32), a sliding groove (33) and a fastening screw (34); the sliding groove (33) is formed in the outer ring of the female head (2), a sliding block (32) is arranged in the sliding groove (33), one end of the elastic plate (31) is connected to the side wall of the sliding block (32), and a fastening screw (34) is arranged at the other end of the elastic plate (31); when the male head (1) extends into the female head (2), the elastic plate (31) is attached to the outer ring of the concave part (11), and one end of the fastening screw (34) extends into the concave part (11); through the cooperation between public head (1), female head (2) and buckle structure (3), realize being connected of public head (1) and female head (2).
2. The natural gas conveying pipe joint according to claim 1, characterized in that a lantern ring (12) is arranged at the other end of the male head (1), the lantern ring (12) is sleeved on an outer ring of the male head (1), a pipeline for conveying natural gas is sleeved between an inner ring of the lantern ring (12) and the outer ring of the male head (1), pull rods (121) are symmetrically arranged on the outer ring of the lantern ring (12), one end of each pull rod (121) is L-shaped, one end of each pull rod (121) extends into the corresponding concave portion (11), when the male head (1) is connected with the female head (2), one end of each pull rod (121) is arranged at the lower end of the corresponding fastening screw (34), and the pipeline sleeved on the male head (1) is fastened through cooperation among the lantern ring (12), the pull rods (121) and the fastening screws (34).
3. A natural gas delivery nipple according to claim 1, wherein: a tension spring (331) is arranged in the sliding groove (33); the tension spring (331) is connected between the slide block (32) and the sliding groove (33); the firmness between the male head (1) and the female head (2) is enhanced through the tension spring (331).
4. A natural gas delivery nipple according to claim 3, wherein: a rubber leather pad (21) is arranged at the joint between the male head (1) and the female head (2), a circular ring (13) is arranged on the outer ring of the male head (1), and the circular ring (13) is arranged close to the joint between the male head (1) and the female head (2); the air tightness between the male head (1) and the female head (2) is enhanced through the matching between the circular ring (13) and the rubber cushion (21).
5. A natural gas delivery nipple according to claim 2, wherein: a through hole is formed in the upper end of each fastening screw (34), a first rod (341) is arranged in each through hole, and the first rods (341) are in clearance fit with the through holes; the first rod (341) is matched with the fastening screw (34) to realize the rotary fastening of the fastening screw (34).
6. A natural gas delivery nipple according to claim 2, wherein: the side wall of the concave part (11) is symmetrically provided with a stop block (111); the central position of the stop block (111) is inclined like the concave part (11), and when the male head (1) is connected with the female head (2), the pull rod (121) is arranged between the stop block (111) and the inner bottom surface of the concave part (11); the male head (1) is prevented from being separated from the pipeline after the fastening screw (34) is loosened by the stop block (111).
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| CN202010182803.9A CN111396654B (en) | 2020-03-16 | 2020-03-16 | Natural gas conveying pipe joint |
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| CN202010182803.9A CN111396654B (en) | 2020-03-16 | 2020-03-16 | Natural gas conveying pipe joint |
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| CN111396654A true CN111396654A (en) | 2020-07-10 |
| CN111396654B CN111396654B (en) | 2021-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126953A (en) * | 2022-09-01 | 2022-09-30 | 江苏铭德金属制品有限公司 | Hydraulic pipe joint of machine tool |
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| Publication number | Publication date |
|---|---|
| CN111396654B (en) | 2021-10-26 |
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Effective date of registration: 20210930 Address after: 400000 22-3, No. 80, Hongxing Road, Jiangbei District, Chongqing Applicant after: CHONGQING BEIJIANG MACHINERY MFG Co.,Ltd. Address before: 234000 Suzhou Yifu normal college, Xuefu Avenue, Yongqiao District, Suzhou City, Anhui Province Applicant before: Sun Long |
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