CN115638304A - HDPE natural gas pipeline connecting piece for preventing leakage - Google Patents
HDPE natural gas pipeline connecting piece for preventing leakage Download PDFInfo
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- CN115638304A CN115638304A CN202211367821.XA CN202211367821A CN115638304A CN 115638304 A CN115638304 A CN 115638304A CN 202211367821 A CN202211367821 A CN 202211367821A CN 115638304 A CN115638304 A CN 115638304A
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Abstract
The invention relates to the technical field of pipeline connecting pieces, and discloses a leakage-proof HDPE natural gas pipeline connecting piece which comprises a pressing piece, wherein a sealing ring is arranged on the outer side of the joint of the pressing piece and a hollow pipeline, the size of the pressing piece is matched with a small hole formed in the limiting block, the outer side of the bottom of the pressing piece is sleeved with the limiting block, the limiting block is hollow, gas is filled in the limiting block, the limiting block is provided with a small hole of which the size is matched with that of the pressing piece, and the limiting block is also provided with a through hole of which the size is matched with that of a driven piece; this prevent HDPE natural gas pipe connection spare of leakage can realize pegging graft respectively in the space that forms between mounting and voussoir through two sections HDPE natural gas line that the staff will be connected, mounting and the laminating of HDPE natural gas line outer wall this moment, sealed rubber ring and the laminating of HDPE natural gas line inner wall, and the pressing part is pushed down, and the pressing part can be towards the direction motion of stopper, extrudees the stopper inside gas.
Description
Technical Field
The invention relates to the technical field of pipeline connecting pieces, in particular to a leakproof HDPE natural gas pipeline connecting piece.
Background
Need use the conduit coupling to communicate two sections pipelines when natural gas line lays, conduit coupling today is mostly metal product, bury for a long time and probably receive steam corrosion underground, influence conduit coupling's life, still probably cause the natural gas to leak after corroding to the certain degree, conduit coupling needs the staff to fix two sections pipelines respectively at the connecting piece both ends when using, rethread nut and bolt are with conduit coupling and pipeline position fixed, cross in numerous and diverse, when installing pipeline and conduit coupling, if fixed insecure still probably leads to the natural gas to leak, under some special environment, for example, ground vibrations, can probably cause the influence to the department of being connected of pipeline and conduit coupling, it is not hard up to make conduit coupling appear.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a leakage-proof HDPE natural gas pipeline connecting piece, which has the advantages of being convenient for installing and disassembling a natural gas pipeline, protecting the metal pipeline connecting piece, prolonging the service life and preventing natural gas from leaking at the pipeline connecting piece, and solves the problems that the pipeline and the pipeline connecting piece need to be aligned and positioned too complexly and are inconvenient to install and disassemble when being installed, the corrosion of the pipeline connecting piece can be accelerated when the metal pipeline connecting piece is used in an underground environment for a long time, and the looseness of the joint of the pipeline connecting piece and the natural gas pipeline can be caused by the influence of the local vibration on the natural gas pipeline.
(II) technical scheme
In order to realize the purposes of conveniently mounting and dismounting the natural gas pipeline, protecting the pipeline connecting piece made of metal, prolonging the service life and preventing the natural gas from leaking at the pipeline connecting piece, the invention provides the following technical scheme: a leakproof HDPE natural gas pipeline connecting piece comprises a pressing piece, wherein a sealing ring is arranged on the outer side of the joint of the pressing piece and a hollow pipeline, the size of the pressing piece is matched with a small hole formed in a limiting block, the outer side of the bottom of the pressing piece is sleeved with a limiting block, the limiting block is hollow, gas is filled in the limiting block, the limiting block is provided with a small hole with the size matched with the pressing piece, the limiting block is also internally provided with a through hole with the size matched with a driven piece, two driven pieces which are axially symmetrical are inserted into the limiting block at the end far away from the pressing piece, the size of the outer side of each driven piece is matched with the circular hole formed in the limiting block, the size of the inner part of each driven piece is provided with a through hole with the size matched with a positioning rod, a positioning rod is inserted into the inner part of each driven piece, the size of the positioning rod is matched with the through hole formed in the driven piece, two axisymmetric the outside of the relative end of follower articulates there is the connecting rod that the several uses the follower to be centrosymmetric to the outside of follower, connecting rod size and follower are to the distance looks adaptation between the voussoir inner wall, the connecting rod is kept away from follower one end and is articulated to have two voussoirs in opposite directions, and the voussoir is laminated with sealed rubber ring mutually, two in opposite directions the outside of voussoir has cup jointed two sealed rubber rings in opposite directions, and sealed rubber ring has certain ductility, and two in opposite directions the outside fixedly connected with two fixings that are axisymmetric of voussoir opposite end, the spout that supplies the motion of limiting member is seted up in the fixing piece outside, and the space that forms between mounting and the voussoir is adapted with natural gas line's thickness, and two are axisymmetric the opposite side fixedly connected with cavity pipeline of fixing piece, set up the through-hole of size and pressing piece looks adaptation on the cavity pipeline.
Preferably, the pressing piece is inserted into the hollow pipeline, and the middle position of the positioning rod is arranged inside the limiting block.
Preferably, the outer side of the positioning ring is hinged with two opposite connecting rods, the size of each connecting rod is matched with the distance between the positioning ring and each driven block, one end, far away from the positioning ring, of each opposite connecting rod is hinged with two opposite driven blocks, one end, far away from the connecting rod, of each opposite driven block is fixedly connected with two axially symmetric limiting pieces, each limiting piece is attached to one corresponding fixing piece, the inner size of each limiting piece is matched with a sliding groove formed in the outer side of each fixing piece, one end, far away from the driven blocks, of each limiting piece is fixedly connected with two opposite silica gel rings, the initial positions of the silica gel rings are located on the fixing pieces, and the silica gel rings are in a stretched state.
Preferably, the positioning ring is sleeved on the outer side of the pressing part, the limiting part is arranged on the outer side of the fixing part, and the silica gel ring is arranged on the outer side of the fixing part.
Preferably, the outer sides of the clamping blocks are provided with two opposite clamping blocks, the clamping blocks are provided with grooves matched with the pressing piece in size, the outer sides of the two opposite clamping blocks are hinged with two opposite positioning blocks, the positioning blocks are provided with through holes matched with the clamping blocks in size, and the insides of the top ends of the positioning blocks are provided with grooves matched with the baffle in size.
Preferably, two opposite sides of the clamping block are fixedly connected with positioning springs, two ends of each positioning spring are fixedly connected with the clamping block and the hollow pipeline respectively, the size of each positioning spring is matched with the distance between the clamping block and the hollow pipeline, a baffle is inserted into the top end of one positioning block, the size of the baffle is matched with a groove formed in the top end of the positioning block, and the transverse distance between the baffle and the distance between the two opposite positioning blocks are matched.
Preferably, the fixture block is fixedly connected with the pressing piece.
(III) advantageous effects
Compared with the prior art, the invention provides a leakproof HDPE natural gas pipeline connecting piece, which has the following beneficial effects:
1. this prevent HDPE natural gas pipe connecting piece of leakage can realize pegging graft respectively in the space that forms between mounting and voussoir through two sections HDPE natural gas line that the staff will need to connect, mounting and HDPE natural gas line outer wall laminating this moment, sealing rubber ring and HDPE natural gas line inner wall laminating, push down the pressing piece, the direction motion of pressing piece can be towards the stopper, extrude the inside gas of stopper, force two followers of pegging graft inside the stopper towards the direction motion of keeping away from each other on the locating lever, thereby drive the connecting rod motion, under the effect of connecting rod and follower, the voussoir can expand towards the outside with the one end that the connecting rod is connected, thereby make the voussoir produce deformation towards HDPE natural gas line inner wall, and then make the sealing rubber ring who cup joints in the voussoir outside press close to HDPE natural gas line inner wall more, need overhaul or when dismantling HDPE natural gas line, only need upwards extract the pressing piece, the voussoir can loosen the natural gas line inner wall with sealing rubber ring, thereby reach the purpose of convenient installation and dismantling HDPE natural gas line connecting piece.
2. This HDPE natural gas pipe connection spare of preventing leakage can realize through pushing down the pressing part, the holding ring that cup joints with the pressing part can push down along with it, and then promote and the articulated connecting rod of holding ring moves towards the direction of keeping away from each other, thereby drive the motion of driven piece, can be under the effect of connecting rod with driven piece fixed connection's limiting piece, the spout internal movement of seting up on the mounting, make the silica gel circle that sets up in the mounting outside move towards the direction of the natural gas pipe who is blocked by the mounting, until breaking away from the mounting surface, at this moment, originally, the silica gel circle that is in by the state of strutting can kick-backing, press from both sides HDPE natural gas pipe outer wall tightly, the device is when using, limiting piece and silica gel circle can protect the device surface, thereby reach the purpose of protecting metal system HDPE natural gas pipe connection spare.
3. This prevent HDPE natural gas pipe connection spare of leakage can realize through pushing down the pressing part, fixture block with pressing part fixed connection can push down thereupon, and then the clamp splice that drives and the fixture block laminating mutually uses the pin joint with the locating piece as the fulcrum rotation, two clamp splices in opposite directions move in opposite directions, until the rigidity to the pressing part, insert the recess of seting up on the locating piece with the baffle this moment inside, connect two locating pieces, the pressing part rigidity under the state of will pushing down, prevent to press the pressing part because the reason of external force kick-backs, thereby reach and prevent reasons such as ground vibrations and lead to HDPE natural gas pipe connection spare and the not hard up purpose of pipeline.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the position relationship of the wedge according to the present invention;
FIG. 3 is a schematic cross-sectional view of the internal structure of the fixing member of the present invention;
FIG. 4 is a schematic view of the position relationship of the internal structure of the wedge of the present invention;
FIG. 5 is a schematic view of the position relationship of the pressing member according to the present invention;
FIG. 6 is a schematic sectional view of the inner structure of the hollow pipe according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 6 at A in accordance with the present invention.
In the figure: 101. a pressing member; 102. a limiting block; 103. a driven member; 104. positioning a rod; 105. a connecting rod; 106. a wedge block; 107. sealing the rubber ring; 108. a fixing member; 109. a hollow conduit; 201. a positioning ring; 202. a connecting rod; 203. a driven block; 204. a limiting member; 205. a silica gel ring; 301. a clamping block; 302. a clamping block; 303. positioning blocks; 304. a positioning spring; 305. and a baffle plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Example one
Referring to fig. 1 to 7, a leak-proof HDPE natural gas pipeline connecting piece comprises a pressing piece 101, wherein the pressing piece 101 is inserted into a hollow pipeline 109, a sealing ring is arranged at the outer side of the joint of the pressing piece 101 and the hollow pipeline 109, the size of the pressing piece 101 is matched with a small hole formed in a limiting block 102, the pressing piece 101 defines the positions of a positioning ring 201 and a fixture block 301, the fixture block 301 and the positioning ring 201 are driven to move synchronously by pressing down the pressing piece 101, and the limiting block 102 is squeezed by pressing down the pressing piece 101 to further force a driven piece 103 to move;
a limiting block 102 is sleeved on the outer side of the bottom of the pressing piece 101, the limiting block 102 is hollow, gas is filled in the limiting block 102, a small hole with the size matched with that of the pressing piece 101 is formed in the limiting block 102, a through hole with the size matched with that of the driven piece 103 is formed in the limiting block 102, the limiting block 102 limits the positions of the pressing piece 101 and the driven piece 103, the gas in the limiting block 102 is pressed by the pressing piece 101, and then the driven piece 103 inserted in the limiting block 102 is forced to move towards the direction away from each other;
two driven members 103 which are axisymmetric are inserted into the end, far away from the pressing part 101, of the limiting block 102, the outside size of each driven member 103 is matched with a round hole formed in the limiting block 102, the inside size of each driven member 103 is provided with a through hole matched with the positioning rod 104, the driven members 103 limit the position of the connecting rod 105, and the driven members 103 are pressed by gas in the limiting block 102 to drive the connecting rod 105 hinged with the driven members 103 to move;
a positioning rod 104 is inserted into the driven member 103, the middle position of the positioning rod 104 is arranged in the limiting block 102, the size of the positioning rod 104 is matched with a through hole formed in the driven member 103, and the positioning rod 104 limits the position and the motion track of the driven member 103;
the outer sides of opposite ends of the two axisymmetric driven members 103 are hinged with a plurality of centrosymmetric connecting rods 105 taking the driven members 103 as a symmetric center, the size of each connecting rod 105 is matched with the distance between each driven member 103 and the inner wall of the wedge 106, the connecting rods 105 are connected with the driven blocks 203 and the wedges 106, and the connecting rods 105 move under the action of the driven members 103 so as to force the wedges 106 to move towards the inner wall of the HDPE natural gas pipeline;
one end of the connecting rod 105, which is far away from the driven part 103, is hinged with two opposite wedges 106, the wedges 106 are attached to a sealing rubber ring 107, the wedges 106 limit the position of the sealing rubber ring 107, and the wedges 106 deform under the action of the connecting rod 105, so that the sealing rubber ring 107 sleeved on the outer side of the wedges 106 deforms and is further attached to the inner wall of the HDPE natural gas pipeline, and the HDPE natural gas pipeline is fixed while natural gas leakage is prevented;
two opposite sealing rubber rings 107 are sleeved on the outer sides of the two opposite wedge blocks 106, the sealing rubber rings 107 have certain ductility, the sealing rubber rings 107 are attached to the inner wall of the HDPE natural gas pipeline, and the sealing rubber rings 107 deform under the action of the wedge blocks 106 and are further attached to the inner wall of the HDPE natural gas pipeline, so that natural gas leakage is prevented;
two fixing pieces 108 which are axially symmetrical are fixedly connected to the outer sides of the opposite ends of the two opposite wedge blocks 106, sliding grooves for the movement of the limiting pieces 204 are formed in the outer sides of the fixing pieces 108, a gap formed between each fixing piece 108 and the corresponding wedge block 106 is matched with the thickness of the HDPE natural gas pipeline, the limiting pieces 204 and the positions of the silicon rubber rings 205 are limited by the corresponding fixing pieces 108, and the gaps between the corresponding fixing pieces 108 and the corresponding wedge blocks 106 can fix the positions of the HDPE natural gas pipelines;
two fixing piece 108 that are axial symmetry's opposite side fixedly connected with cavity pipeline 109, the through-hole of seting up size and pressing part 101 looks adaptation on the cavity pipeline 109, two HDPE natural gas pipelines are connected to cavity pipeline 109, make the inside intercommunication of HDPE natural gas pipeline.
Example two
Referring to fig. 1 to 3 and 5 to 7, a leak-proof HDPE natural gas pipeline connecting member includes a positioning ring 201, the positioning ring 201 is sleeved on the outer side of a pressing member 101, a circular hole with a size matched with that of the pressing member 101 is formed in the positioning ring 201, the positioning ring 201 defines the position of a connecting rod 202, and the positioning ring 201 moves under the action of the pressing member 101 to drive the connecting rod 202 to move;
the outer side of the positioning ring 201 is hinged with two opposite connecting rods 202, the size of each connecting rod 202 is matched with the distance between the positioning ring 201 and the driven block 203, the connecting rods 202 are connected with the positioning ring 201 and the driven block 203, and the connecting rods 202 move towards the direction away from each other under the action of the positioning ring 201 to further drive the driven block 203 hinged with the connecting rods to move;
one ends of the two opposite connecting rods 202, which are far away from the positioning ring 201, are hinged with two opposite driven blocks 203, and the driven blocks 203 move under the driving of the connecting rods 202, so that the limiting pieces 204 fixedly connected with the driven blocks move on a sliding groove formed in the outer side of the fixing piece 108;
two opposite driven blocks 203 are fixedly connected with two axially symmetric limiting pieces 204 at ends far away from the connecting rod 202, the limiting pieces 204 are arranged outside the fixed piece 108, the limiting pieces 204 are attached to the fixed piece 108, the internal size of the limiting pieces 204 is matched with a chute arranged outside the fixed piece 108, the limiting pieces 204 limit the position of the silica gel ring 205, the limiting pieces 204 move towards the direction far away from each other in the chute arranged outside the fixed piece 108 under the action of the driven blocks 203, so as to drive the position of the silica gel ring 205 to change, the limiting pieces 204 simultaneously protect the fixed piece 108, and the service life of the fixed piece 108 is prolonged;
two opposite silica gel rings 205 are fixedly connected to one ends, far away from the driven block 203, of the two opposite limiting pieces 204, the silica gel rings 205 are arranged on the outer sides of the fixing pieces 108, the initial positions of the silica gel rings 205 are located on the fixing pieces 108, the silica gel rings 205 are in a spread state, the silica gel rings 205 are separated from the fixing pieces 108 under the action of the limiting pieces 204, so that the silica gel rings are in contact with the outer wall of the HDPE natural gas pipeline inserted into the fixing pieces 108, at the moment, the silica gel rings 205 shrink to coat the outer wall of the inner wall of the HDPE natural gas pipeline, and natural gas leakage is further prevented.
EXAMPLE III
Referring to fig. 1 and 5 to 7, a leak-proof HDPE natural gas pipe connector includes a fixture block 301, the fixture block 301 is fixedly connected to a pressing member 101, and the fixture block 301 moves under the action of the pressing member 101 to drive a clamping block 302 to move toward each other;
two opposite clamping blocks 302 are arranged on the outer side of the clamping block 301, grooves matched with the pressing piece 101 in size are formed in the clamping blocks 302, and the clamping blocks 302 rotate under the action of the clamping block 301 by taking a hinge point with the positioning block 303 as a fulcrum, so that the position of the pressing piece 101 is fixed;
the outer sides of the two opposite clamping blocks 302 are hinged with two opposite positioning blocks 303, the positioning blocks 303 are fixedly connected with the hollow pipeline 109, through holes with sizes matched with the clamping blocks 302 are formed in the positioning blocks 303, grooves with sizes matched with the baffle 305 are formed in the top ends of the positioning blocks 303, and the positions and movement tracks of the clamping blocks 302 are limited by the positioning blocks 303;
positioning springs 304 are fixedly connected to opposite sides of the two opposite clamping blocks 302, two ends of each positioning spring 304 are fixedly connected with the clamping block 302 and the hollow pipeline 109 respectively, the size of each positioning spring 304 is matched with the distance between the clamping block 302 and the hollow pipeline 109, and the positioning springs 304 limit the positions of the clamping blocks 302;
the inside of the top of one of the locating piece 303 is pegged graft and is had baffle 305, and the baffle 305 size matches with the recess that the locating piece 303 top was inside seted up, and the horizontal interval of baffle 305 matches with the distance between two locating pieces 303 in opposite directions, and baffle 305 pegs graft on two locating pieces 303, prevents that clamp splice 302 and pressing piece 101 from kick-backing.
The working process and principle are as follows: referring to fig. 1 to 7, two sections of HDPE natural gas pipes to be connected are respectively inserted into a gap formed between a fixing member 108 and a wedge 106 by a worker, at this time, the fixing member 108 is attached to the outer wall of the HDPE natural gas pipe, a sealing rubber ring 107 is attached to the inner wall of the HDPE natural gas pipe, the pressing member 101 is pressed downward, the pressing member 101 moves toward the direction of a limiting block 102 to squeeze gas inside the limiting block 102, two driven members 103 inserted into the limiting block 102 are forced to move in the direction away from each other on a positioning rod 104, so as to drive a connecting rod 105 to move, under the action of the connecting rod 105 and the driven members 103, one end of the wedge 106 connected with the connecting rod 105 expands toward the outside, so that the wedge 106 deforms toward the inner wall of the HDPE natural gas pipe, and the sealing rubber ring 107 sleeved outside the wedge 106 is closer to the inner wall of the HDPE natural gas pipe, and when the HDPE natural gas pipe is required to be repaired or disassembled, the wedge 106 and the sealing rubber ring 107 release the inner wall of the HDPE natural gas pipe;
the pressing piece 101 is pressed downwards, the positioning ring 201 sleeved with the pressing piece 101 is pressed downwards along with the pressing piece, and then the connecting rod 202 hinged with the positioning ring 201 is pushed to move towards the direction away from each other, so that the driven block 203 is driven to move, the limiting piece 204 fixedly connected with the driven block 203 moves in the sliding groove formed in the fixing piece 108 under the action of the connecting rod 202, so that the silicon rubber ring 205 arranged on the outer side of the fixing piece 108 moves towards the direction of the natural gas pipeline clamped by the fixing piece 108 until the silicon rubber ring is separated from the outer surface of the fixing piece 108, and at the moment, the silicon rubber ring 205 which is originally in a stretched state can rebound to clamp the outer wall of the HDPE natural gas pipeline;
the pressing piece 101 is pressed downwards, the clamping block 301 fixedly connected with the pressing piece 101 is pressed downwards, the clamping blocks 302 attached to the clamping blocks 301 are driven to rotate by taking hinge points with the positioning blocks 303 as pivot points, the two opposite clamping blocks 302 move oppositely until the position of the pressing piece 101 is fixed, the baffle plate 305 is inserted into a groove formed in the positioning blocks 303 at the moment, the two positioning blocks 303 are connected, the position of the pressing piece 101 in a pressing state is fixed, and the pressing piece 101 is prevented from rebounding due to external force.
In conclusion, the leakproof HDPE natural gas pipeline connecting piece can realize that two sections of HDPE natural gas pipelines to be connected are respectively inserted into a gap formed between the fixing piece 108 and the wedge block 106 by a worker, at the moment, the fixing piece 108 is attached to the outer wall of the HDPE natural gas pipeline, the sealing rubber ring 107 is attached to the inner wall of the HDPE natural gas pipeline, the pressing piece 101 is pressed downwards, the pressing piece 101 can move towards the direction of the limiting block 102 to extrude the gas in the limiting block 102, two driven pieces 103 inserted into the limiting block 102 are forced to move towards the direction away from each other on the positioning rod 104, so that the connecting rod 105 is driven to move, under the action of the connecting rod 105 and the driven pieces 103, one end of the wedge block 106, which is connected with the connecting rod 105, can expand towards the outer side, so that the wedge block 106 deforms towards the inner wall of the HDPE natural gas pipeline, and further the sealing rubber ring 107 sleeved on the outer side of the wedge block 106 is closer to the inner wall of the HDPE natural gas pipeline, when the HDPE natural gas pipeline needs to be overhauled or dismantled, only by pulling out the pressing piece 101, and the wedge block 106 and the sealing rubber ring 107 can loosen the inner wall of the HDPE natural gas pipeline, so as to achieve the purpose of conveniently installing and dismantling the natural gas pipeline connecting piece;
the positioning ring 201 sleeved with the pressing piece 101 can be pressed downwards along with the pressing piece 101, so that the connecting rod 202 hinged to the positioning ring 201 is pushed to move towards the direction away from each other, the driven block 203 is driven to move, the limiting piece 204 fixedly connected with the driven block 203 moves inside the sliding groove formed in the fixing piece 108 under the action of the connecting rod 202, the silicone ring 205 arranged on the outer side of the fixing piece 108 moves towards the direction of the natural gas pipeline clamped by the fixing piece 108 until the limiting piece is separated from the outer surface of the fixing piece 108, at the moment, the silicone ring 205 originally in a stretched state can rebound to clamp the outer wall of the HDPE natural gas pipeline, and when the device is used, the limiting piece 204 and the silicone ring 205 can protect the outer surface of the device, so that the purpose of protecting the metal HDPE natural gas pipeline connecting piece is achieved;
can realize through pushing down pressing part 101, fixture block 301 with pressing part 101 fixed connection can push down thereupon, and then drive the anchor block 302 of laminating mutually with fixture block 301 and use the pin joint with locating piece 303 as the fulcrum rotation, two relative anchor blocks 302 move in opposite directions, until the rigidity with pressing part 101, insert baffle 305 inside the recess of seting up on locating piece 303 this moment, connect two locating pieces 303, pressing part 101 rigidity under the state of will pushing down, prevent pressing part 101 because the reason of external force is kick-backed, thereby reach and prevent that reasons such as ground vibrations from leading to the not hard up purpose of HDPE day gas pipeline connecting piece and pipeline.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A HDPE natural gas pipe connection spare of preventing leaking, includes pressing piece (101), its characterized in that: the outer side of the bottom of the pressing piece (101) is sleeved with a limiting block (102), two driven pieces (103) which are axisymmetric are inserted into the limiting block (102) far away from one end of the pressing piece (101), a positioning rod (104) is inserted into the driven piece (103), a plurality of connecting rods (105) which are centrosymmetric and use the driven pieces (103) as symmetric centers are hinged to the outer sides of opposite ends of the two driven pieces (103), two opposite wedge blocks (106) are hinged to one end, far away from the driven piece (103), of the connecting rod (105), two opposite sealing rubber rings (107) are sleeved on the outer sides of the two opposite wedge blocks (106), two opposite fixing pieces (108) which are axisymmetric are fixedly connected to the outer sides of opposite ends of the two opposite wedge blocks (106), and hollow pipelines (109) are fixedly connected to opposite sides of the two opposite fixing pieces (108) which are axisymmetric.
2. A leak resistant HDPE natural gas pipe connection as claimed in claim 1 wherein: the pressing piece (101) is inserted into the hollow pipeline (109), and the middle position of the positioning rod (104) is arranged inside the limiting block (102).
3. A leak resistant HDPE natural gas pipe connection according to claim 1, characterized in that: still include holding ring (201), the outside of holding ring (201) articulates there are two connecting rod (202) in opposite directions, and holding ring (201) one end is kept away from in two connecting rod (202) in opposite directions articulates there are two driven pieces (203) in opposite directions, and connecting rod (202) one end fixedly connected with two limiting piece (204) that are axisymmetric are kept away from in two driven pieces (203) in opposite directions limiting piece (204) keep away from driven piece (203) one end fixedly connected with two silica gel circles (205) in opposite directions.
4. A leak resistant HDPE natural gas pipe connection according to claim 3, characterized in that: the positioning ring (201) is sleeved on the outer side of the pressing piece (101), the limiting piece (204) is arranged on the outer side of the fixing piece (108), and the silica gel ring (205) is arranged on the outer side of the fixing piece (108).
5. A leak resistant HDPE natural gas pipe connection according to claim 1, characterized in that: the fixture comprises a fixture block (301), wherein two opposite clamping blocks (302) are arranged on the outer side of the fixture block (301), and two opposite positioning blocks (303) are hinged to the outer sides of the two opposite clamping blocks (302).
6. A leak resistant HDPE natural gas pipe connection according to claim 5, wherein: positioning springs (304) are fixedly connected to opposite sides of the two opposite clamping blocks (302), and a baffle (305) is inserted into the top end of one positioning block (303).
7. A leak resistant HDPE natural gas pipe connection according to claim 5, wherein: the fixture block (301) is fixedly connected with the pressing piece (101).
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| CN202211367821.XA CN115638304A (en) | 2022-11-03 | 2022-11-03 | HDPE natural gas pipeline connecting piece for preventing leakage |
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| CN202211367821.XA CN115638304A (en) | 2022-11-03 | 2022-11-03 | HDPE natural gas pipeline connecting piece for preventing leakage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398712A (en) * | 2023-06-08 | 2023-07-07 | 太仓濂辉液压器材有限公司 | Leak-proof explosion-proof high-pressure oil pipe |
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| GB1279689A (en) * | 1968-07-22 | 1972-06-28 | Industriebedarf Ges M B H | Pipe socket joint |
| KR20120038745A (en) * | 2010-10-14 | 2012-04-24 | 정규호 | Apparatus for connecting plastic pipes |
| CN105825621A (en) * | 2015-01-27 | 2016-08-03 | 罗伯特·博世有限公司 | Method and device for driving motor vehicle able to be driven in an at least partially automated manner |
| CN208804386U (en) * | 2018-09-21 | 2019-04-30 | 湖南诚路管业科技有限公司 | A kind of plastic conduit connecting pipe |
| CN210566880U (en) * | 2019-07-16 | 2020-05-19 | 青岛正然工贸有限公司 | Quick joint for cross-linking pipe |
| CN211371619U (en) * | 2020-01-19 | 2020-08-28 | 天津圣杰汽车零件制造有限公司 | PVF pipe with direction mounting structure |
| CN212929070U (en) * | 2020-05-27 | 2021-04-09 | 冯波 | Natural gas line prevents leaking device |
| CN216112647U (en) * | 2021-07-19 | 2022-03-22 | 峡江新奥燃气有限公司 | Natural gas conveying pipeline |
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| CN116398712A (en) * | 2023-06-08 | 2023-07-07 | 太仓濂辉液压器材有限公司 | Leak-proof explosion-proof high-pressure oil pipe |
| CN116398712B (en) * | 2023-06-08 | 2023-09-01 | 太仓濂辉液压器材有限公司 | Leak-proof explosion-proof high-pressure oil pipe |
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