CN208886201U - A kind of natural gas line attachment device - Google Patents

A kind of natural gas line attachment device Download PDF

Info

Publication number
CN208886201U
CN208886201U CN201821423920.4U CN201821423920U CN208886201U CN 208886201 U CN208886201 U CN 208886201U CN 201821423920 U CN201821423920 U CN 201821423920U CN 208886201 U CN208886201 U CN 208886201U
Authority
CN
China
Prior art keywords
shaped frame
fuel gas
guide tube
gas
natural gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201821423920.4U
Other languages
Chinese (zh)
Inventor
杨济东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Songhui Pipeline Co Ltd
Original Assignee
Qingdao Songhui Pipeline Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Songhui Pipeline Co Ltd filed Critical Qingdao Songhui Pipeline Co Ltd
Priority to CN201821423920.4U priority Critical patent/CN208886201U/en
Application granted granted Critical
Publication of CN208886201U publication Critical patent/CN208886201U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to natural gas line technical fields, and disclose a kind of natural gas line attachment device, including particle size fuel gas conduit, the two sides up and down of one end of the particle size fuel gas conduit are fixedly connected to U-shaped frame I, the inner wall of the U-shaped frame I is equipped with the ring type seal being located in particle size fuel gas conduit, and the two sides up and down of the particle size fuel gas conduit are fixedly connected to the fixed ring positioned at ring type seal side.The natural gas line attachment device, pass through rotary U-type frame II, it is moved towards using different height difference Compressive activities bar of the steel ball in limiting slot and dashpot, and then extruding fixation is carried out to thin footpath fuel gas conduit using curved tablet, repositioning pin is clamped and is fixed with location hole, thin footpath fuel gas conduit is avoided to shake after a protracted use, and then lead to the leakage of natural gas, improve the safety and leakproofness of pipeline connection, simultaneously convenient for being attached using the pipeline of different-diameter, the practicability of device is improved.

Description

A kind of natural gas line attachment device
Technical field
The utility model relates to natural gas line technical field, specially a kind of natural gas line attachment device.
Background technique
Natural gas refers to a naturally occurring tangential gas in nature, including in atmospheric thermodynamics, hydrosphere and lithosphere it is various from Gas that right process is formed (including casing-head gas, reservoir gas, gas of mud volcano, coal bed gas and biology generate gas etc..
Natural gas has been widely used in daily life as the energy, and people utilize pipeline by natural gas transportation To formulation region, then uniformly it is delivered to every household, it may be said that natural gas has been one of resource for the survival of mankind, and Connection between natural gas line is often attached using specific assembling pipe joint, and these existing connection dresses Set and mostly use valve to be attached greatly, and these valves be commonly connected same size pipeline or designated diameter it is natural Feed channel needs to be attached using specific pipeline when natural gas line damage, and practicability is poor, thus it is proposed that A kind of natural gas line attachment device.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of natural gas line attachment device, has convenient for inciting somebody to action The advantages that natural gas line of different-diameter size is attached, and practicability is higher solves when repairing natural gas line, needs The natural gas line of designated diameter is wanted, the problem of narrow scope of application.
(2) technical solution
Above-mentioned convenient for the natural gas line of different-diameter size to be attached, the purpose more practical to realize, this Utility model provides the following technical solutions: a kind of natural gas line attachment device, including particle size fuel gas conduit, the particle size fuel gas conduit The two sides up and down of one end be fixedly connected to U-shaped frame I, the inner wall of the U-shaped frame I is equipped with the ring being located in particle size fuel gas conduit Shape sealing ring, the two sides up and down of the particle size fuel gas conduit are fixedly connected to the fixed ring positioned at ring type seal side, described Particle size fuel gas conduit is located at fixing sleeve on one end of U-shaped I side of frame and connection frame is housed, and the connection frame is set close to the side of U-shaped frame I There are connecting tube, the other side of the connecting tube and ring type seal pivot bush unit, the two sides up and down of the connection frame are welded with The top of mounting blocks, the mounting blocks is threadedly coupled by clamping screw with U-shaped frame I, the fixed peace in the other side of the connection frame Equipped with gas-guide tube, the inner cavity of the gas-guide tube is fixedly installed with mounting plate, and gas port is offered in the middle part of the mounting plate, described Mounting plate is fixedly installed with locating rack far from the side of particle size fuel gas conduit, and the outer wall of the other end of the gas-guide tube passes through two axis It holds and is rotatablely connected with the inner wall of U-shaped frame II, one end of the gas-guide tube is equipped with the fixed block positioned at U-shaped II side of frame, described solid The middle part for determining block is clamped by positioning device with U-shaped II phase of frame, offers limiting slot, and U-shaped frame on the inner wall of the U-shaped frame II The dashpot to connect with limiting slot is offered simultaneously on II inner wall, one end of the gas-guide tube is movably installed with positioned at two Pressing device between bearing offers location hole compatible with positioning device on the end face of U-shaped II side of frame, described The inner wall of one end of gas-guide tube is equipped with sealing-plug, and one end of gas-guide tube is movably installed with thin footpath fuel gas conduit.
Preferably, the positioning device includes positioning pin, and the positioning pin movable set is described fixed at the middle part of fixed block Position sells one end far from U-shaped frame II and is fixedly connected with pulling block, and the side of the pulling block passes through the tension spring that is located on positioning pin and solid Determine the side transmission connection of block.
Preferably, the pressing device includes motion bar, and the motion bar movable set is in one end of gas-guide tube, the work One end that lever is located at airway lumen is equipped with curved tablet, the intrados of the curved tablet and one end of thin footpath fuel gas conduit It is flexibly connected, the middle part regulation that the motion bar is located at airway lumen is set with link block, and the bottom of the link block passes through The inner wall of pressure spring and gas-guide tube on motion bar is sequentially connected, and the motion bar is located at the fixed company in the bottom end outside gas-guide tube It is connected to connecting sleeve, the bottom end of the connecting sleeve is movably installed with steel ball, and the steel ball is adapted with limiting slot and dashpot.
Preferably, the material of the ring type seal is rubber material, and the side of ring type seal offers annular Groove, the ring type seal between annular groove and fixed ring using interference fit by being connected.
Preferably, the groove width value of the limiting slot and dashpot is respectively greater than the outer diameter value of steel ball, the arc of the limiting slot Slot length is quadrant, and the dashpot is located at the middle of limiting slot quadrant length.
Preferably, the aperture value of the location hole is equal with the outer diameter value of positioning pin, and the quantity of location hole is set as three, And three location holes are uniformly and equidistantly distributed in a ring on the end face of U-shaped frame II, distance two-by-two between three location holes Greater than the flute length of dashpot.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of natural gas line attachment device, has following beneficial to effect Fruit:
1, the natural gas line attachment device, by rotary U-type frame II, using steel ball in limiting slot and dashpot not It is moved towards with difference in height Compressive activities bar, and then extruding fixation, repositioning pin is carried out to thin footpath fuel gas conduit using curved tablet It is clamped and is fixed with location hole, avoided thin footpath fuel gas conduit and shake after a protracted use, and then cause The leakage of natural gas improves the safety and leakproofness of pipeline connection, while convenient for being connected using the pipeline of different-diameter It connects, improves the practicability of device.
2, the natural gas line attachment device ensure that particle size fires by the sealing function of ring type seal and sealing-plug Sealing effect at tracheae switching avoids the leakage of natural gas, U-shaped convenient for preferably adjusting using the rotating effect of bearing Frame II rotates, and then facilitates and be clamped using positioning device to U-shaped frame II, improves the fluency that U-shaped frame II rotates.
Detailed description of the invention
Fig. 1 is the utility model structure front cut-away illustration;
Fig. 2 is the side schematic view of the U-shaped frame II of the utility model structure;
Fig. 3 is the utility model airframe bearing side schematic view;
Fig. 4 is the utility model structure positioning schematic device;
Fig. 5 is the utility model structure pressing device schematic diagram;
Fig. 6 is partial enlargement diagram at the B of the utility model structure chart 1;
Fig. 7 is partial enlargement diagram at the A of the utility model structure chart 1.
In figure: 1 particle size fuel gas conduit, 2 U-shaped framves I, 3 ring type seals, 4 fixed rings, 5 connection frames, 6 connecting tubes, 7 installations Block, 8 clamping screws, 9 gas-guide tubes, 10 mounting plates, 11 gas ports, 12 locating racks, 13 bearings, 14 U-shaped framves II, 15 fixed blocks, 16 Positioning device, 161 positioning pins, 162 pulling blocks, 163 tension springs, 17 limiting slots, 18 dashpots, 19 pressing devices, 191 motion bars, 192 Curved tablet, 193 link blocks, 194 pressure springs, 195 connecting sleeves, 196 steel balls, 20 location holes, 21 sealing-plugs, 22 thin footpath combustion gas Pipe.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-7, a kind of natural gas line attachment device, including particle size fuel gas conduit 1, one end of particle size fuel gas conduit 1 Two sides up and down be fixedly connected to U-shaped frame I 2, the inner wall of U-shaped frame I 2 is equipped with the ring packing being located in particle size fuel gas conduit 1 Circle 3, the material of ring type seal 3 is rubber material, and the side of ring type seal 3 offers the groove of annular, ring packing Using interference fit connection between the groove and fixed ring 4 that circle 3 passes through annular, the leakproofness of pipeline junction ensure that, improve The safety and reliability of natural gas transportation, the two sides up and down of particle size fuel gas conduit 1 are fixedly connected to positioned at ring type seal 3 The fixed ring 4 of side, particle size fuel gas conduit 1 are located at fixing sleeve on one end of U-shaped I 2 side of frame and connection frame 5 are housed, and connection frame 5 is close The side of U-shaped frame I 2 is equipped with connecting tube 6, the other side of connecting tube 6 and 3 pivot bush unit of ring type seal, and up and down the two of connection frame 5 Side is welded with mounting blocks 7, and the top of mounting blocks 7 is threadedly coupled by clamping screw 8 with U-shaped frame I 2, the other side of connection frame 5 It is fixedly installed with gas-guide tube 9, the inner cavity of gas-guide tube 9 is fixedly installed with mounting plate 10, and the middle part of mounting plate 10 offers gas port 11, mounting plate 10 is fixedly installed with locating rack 12 far from the side of particle size fuel gas conduit 1, and the outer wall of the other end of gas-guide tube 9 passes through The inner wall of two bearings 13 and U-shaped frame II 14 is rotatablely connected, and one end of gas-guide tube 9 is equipped with the fixation positioned at U-shaped II 14 side of frame The middle part of block 15, fixed block 15 is clamped by positioning device 16 with U-shaped II 14 phase of frame, and positioning device 16 includes positioning pin 161, fixed For position 161 movable set of pin at the middle part of fixed block 15, positioning pin 161 is fixedly connected with pulling block far from one end of U-shaped frame II 14 162, the side of pulling block 162 is sequentially connected by the side of the tension spring 163 and fixed block 15 that are located on positioning pin 161, by setting It sets positioning pin 161 to be clamped with 20 phase of location hole, guarantees that U-shaped frame II 14 will not rotate in the case where being subject to external force, in turn Guarantee that curved tablet 192 will not shift, guarantees the fixed stability of thin footpath fuel gas conduit 22, opened on the inner wall of U-shaped frame II 14 Equipped with limiting slot 17, the groove width value of limiting slot 17 and dashpot 18 is respectively greater than the outer diameter value of steel ball 196, the arc slot of limiting slot 17 Length is quadrant, and dashpot 18 is located at the middle of 17 quadrant length of limiting slot, is limited by setting 17 groove depth of slot is equidistant intensification, and then facilitates and squeeze the movement that steel ball 196 carries out arbitrary dimension, final to realize to different-diameter Thin footpath fuel gas conduit 22 grips, and improves the practicability of device, and offers and limit simultaneously on the inner wall of U-shaped frame II 14 The dashpot 18 that slot 17 connects, one end of gas-guide tube 9 are movably installed with the pressing device 19 between two bearings 13, pressure Tight device 19 includes motion bar 191, and 191 movable set of motion bar is located in gas-guide tube 9 in one end of gas-guide tube 9, motion bar 191 One end of chamber is equipped with curved tablet 192, and the intrados of curved tablet 192 is flexibly connected with one end of thin footpath fuel gas conduit 22, living The middle part regulation that lever 191 is located at 9 inner cavity of gas-guide tube is set with link block 193, and the bottom of link block 193 is by being located at motion bar The inner wall of pressure spring 194 and gas-guide tube 9 on 191 is sequentially connected, and the bottom end that motion bar 191 is located at outside gas-guide tube 9 is fixedly connected There is connecting sleeve 195, the bottom end of connecting sleeve 195 is movably installed with steel ball 196, steel ball 196 and limiting slot 17 and dashpot 18 It is adapted, by the setting of curved tablet 192, is accommodated convenient for the thin footpath fuel gas conduit 22 to different-diameter, thin footpath is avoided to fire Tracheae 22 shifts after a protracted use, and then natural gas transportation is caused to be hindered, or lets out in junction Phenomenon is leaked, the safety of pipeline connection is improved, is offered on the end face of U-shaped II 14 side of frame compatible with positioning device 16 Location hole 20, the aperture value of location hole 20 and the outer diameter value of positioning pin 161 are equal, and the quantity of location hole 20 is set as three, and Three location holes 20 are uniformly and equidistantly distributed in a ring on the end face of U-shaped frame II 14, distance two-by-two between three location holes 20 Greater than the flute length of dashpot 18, it is clamped by the cooperation of setting location hole 20 and positioning pin 161, U-shaped frame II 14 is fixed, Guarantee the stability of pipeline connection installation, the inner wall of one end of gas-guide tube 9 is equipped with sealing-plug 21, and one end of gas-guide tube 9 is living It is dynamic to be set with thin footpath fuel gas conduit 22.
When natural gas line needs to be serviced, it is first shut off the total valve port of natural gas, then pulls out pulling block 162, So that positioning pin 161 is separated with location hole 20, U-shaped frame II 14 is then rotated, when steel ball 196 drops down onto 18 inside of dashpot, is led to The restitution of pressure spring 194 is crossed, driving curved tablet 192, pop-up is separated with thin footpath fuel gas conduit 22 outward, then by thin footpath combustion gas Pipe 22 is extracted out, changes new pipeline, position is mixed up, then opposite direction rotates U-shaped frame II 14, is squeezed using the inner wall of U-shaped frame II 14 Motion bar 191 is pressed, is clamped pipeline by curved tablet 192, and adjust the position of location hole 20 Yu positioning pin 161, finally Pulling block 162 is unclamped, allows positioning pin 161 and location hole 20 to block and leads.
In conclusion the natural gas line attachment device, by rotary U-type frame II 14, using steel ball 196 in limiting slot 17 It is moved towards with the different height difference Compressive activities bar 191 in dashpot 18, and then using curved tablet 192 to thin footpath fuel gas conduit 22 carry out extruding fixation, and repositioning pin 161 carries out clamping with location hole 20 and is fixed, and avoid thin footpath fuel gas conduit 22 when long Between use after shake, and then lead to the leakage of natural gas, improve the safety and leakproofness of pipeline connection, while just It is attached in using the pipeline of different-diameter, improves the practicability of device;Pass through the close of ring type seal 3 and sealing-plug 21 Envelope effect, ensure that the sealing effect at 1 switching of particle size fuel gas conduit, avoids the leakage of natural gas, utilize the rotation of bearing 13 Effect is rotated convenient for preferably adjusting U-shaped frame II 14, and then facilitates and be clamped using positioning device 16 to U-shaped frame II 14, is mentioned The fluency that high U-shaped frame II 14 rotates, solves when repairing natural gas line, needs the natural gas line of designated diameter, The problem of narrow scope of application.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of natural gas line attachment device, including particle size fuel gas conduit (1), it is characterised in that: the particle size fuel gas conduit (1) The two sides up and down of one end are fixedly connected to U-shaped frame I (2), and the inner wall of the U-shaped frame I (2), which is equipped with, is located at particle size fuel gas conduit (1) two sides up and down of the ring type seal (3) on, the particle size fuel gas conduit (1) are fixedly connected to positioned at ring type seal (3) The fixed ring (4) of side, the particle size fuel gas conduit (1) are located at fixing sleeve on one end of U-shaped frame I (2) side and connection frame are housed (5), the connection frame (5) is equipped with connecting tube (6) close to the side of U-shaped frame I (2), the other side of the connecting tube (6) and annular The two sides up and down of sealing ring (3) pivot bush unit, the connection frame (5) are welded with mounting blocks (7), the top of the mounting blocks (7) Portion is threadedly coupled by clamping screw (8) with U-shaped frame I (2), and the other side of the connection frame (5) is fixedly installed with gas-guide tube (9), the inner cavity of the gas-guide tube (9) is fixedly installed with mounting plate (10), offers gas port in the middle part of the mounting plate (10) (11), the mounting plate (10) is fixedly installed with locating rack (12) far from the side of particle size fuel gas conduit (1), the gas-guide tube (9) The outer wall of the other end be rotatablely connected by the inner wall of two bearings (13) and U-shaped frame II (14), one end of the gas-guide tube (9) Equipped with the fixed block (15) for being located at U-shaped frame II (14) side, the middle part of the fixed block (15) by positioning device (16) with it is U-shaped Frame II (14) is mutually clamped, and offers limiting slot (17) on the inner wall of the U-shaped frame II (14), and on the inner wall of U-shaped frame II (14) The dashpot (18) to connect with limiting slot (17) is offered simultaneously, and one end of the gas-guide tube (9) is movably installed with positioned at two Pressing device (19) between a bearing (13) offers on the end face of U-shaped frame II (14) side and positioning device (16) The inner wall of compatible location hole (20), one end of the gas-guide tube (9) is equipped with sealing-plug (21), and the one of gas-guide tube (9) End is movably installed with thin footpath fuel gas conduit (22).
2. a kind of natural gas line attachment device according to claim 1, it is characterised in that: positioning device (16) packet It includes positioning pin (161), positioning pin (161) movable set is at the middle part of fixed block (15), and the positioning pin (161) is far from U One end of type frame II (14) is fixedly connected with pulling block (162), and the side of the pulling block (162) is by being located on positioning pin (161) Tension spring (163) and fixed block (15) side be sequentially connected.
3. a kind of natural gas line attachment device according to claim 1, it is characterised in that: pressing device (19) packet It includes motion bar (191), in one end of gas-guide tube (9), the motion bar (191) is located at leads motion bar (191) movable set One end of tracheae (9) inner cavity is equipped with curved tablet (192), the intrados and thin footpath fuel gas conduit of the curved tablet (192) (22) one end is flexibly connected, and the middle part regulation that the motion bar (191) is located at gas-guide tube (9) inner cavity is set with link block (193), the bottom of the link block (193) passes through the pressure spring (194) being located on motion bar (191) and the inner wall of gas-guide tube (9) Transmission connection, the motion bar (191) are located at the external bottom end of gas-guide tube (9) and are fixedly connected with connecting sleeve (195), the company The bottom end of female connector pipe (195) is movably installed with steel ball (196), the steel ball (196) and limiting slot (17) and dashpot (18) phase Adaptation.
4. a kind of natural gas line attachment device according to claim 1, it is characterised in that: the ring type seal (3) Material be rubber material, and the side of ring type seal (3) offers the groove of annular, and the ring type seal (3) passes through Using interference fit connection between the groove and fixed ring (4) of annular.
5. a kind of natural gas line attachment device according to claim 1, it is characterised in that: the limiting slot (17) is gentle The groove width value of jet-bedding (18) is respectively greater than the outer diameter value of steel ball (196), and the arc slot length of the limiting slot (17) is a quarter Circumference, the dashpot (18) are located at the middle of limiting slot (17) quadrant length.
6. a kind of natural gas line attachment device according to claim 1, it is characterised in that: the hole of the location hole (20) Diameter value is equal with the outer diameter value of positioning pin (161), and the quantity of location hole (20) is set as three, and three location holes (20) are in ring Shape is uniformly and equidistantly distributed on the end face of U-shaped frame II (14), and distance is greater than buffering two-by-two between three location holes (20) The flute length of slot (18).
CN201821423920.4U 2018-08-31 2018-08-31 A kind of natural gas line attachment device Active CN208886201U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821423920.4U CN208886201U (en) 2018-08-31 2018-08-31 A kind of natural gas line attachment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821423920.4U CN208886201U (en) 2018-08-31 2018-08-31 A kind of natural gas line attachment device

Publications (1)

Publication Number Publication Date
CN208886201U true CN208886201U (en) 2019-05-21

Family

ID=66510698

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821423920.4U Active CN208886201U (en) 2018-08-31 2018-08-31 A kind of natural gas line attachment device

Country Status (1)

Country Link
CN (1) CN208886201U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173670A (en) * 2019-07-02 2019-08-27 上海罗曼照明科技股份有限公司 Adjustable clip
CN114368121A (en) * 2021-12-22 2022-04-19 刘文香 Energy-saving consumption-reducing injection molding machine
CN115163948A (en) * 2022-07-14 2022-10-11 山西天然气有限公司 Natural gas pipeline communicating vessel convenient for replacing different diameters and installation method thereof
CN115930013A (en) * 2022-11-09 2023-04-07 高道密封科技(苏州)有限公司 Mechanical seal connecting device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173670A (en) * 2019-07-02 2019-08-27 上海罗曼照明科技股份有限公司 Adjustable clip
CN110173670B (en) * 2019-07-02 2024-03-12 上海罗曼照明科技股份有限公司 Adjustable clamp
CN114368121A (en) * 2021-12-22 2022-04-19 刘文香 Energy-saving consumption-reducing injection molding machine
CN114368121B (en) * 2021-12-22 2023-11-03 鸿利达精密组件(中山)有限公司 Energy-saving consumption-reducing injection molding machine
CN115163948A (en) * 2022-07-14 2022-10-11 山西天然气有限公司 Natural gas pipeline communicating vessel convenient for replacing different diameters and installation method thereof
CN115163948B (en) * 2022-07-14 2024-01-19 山西天然气有限公司 Natural gas pipeline communicating vessel convenient to replace different diameters and installation method thereof
CN115930013A (en) * 2022-11-09 2023-04-07 高道密封科技(苏州)有限公司 Mechanical seal connecting device
CN115930013B (en) * 2022-11-09 2023-11-28 高道密封科技(苏州)有限公司 Mechanical seal connecting device

Similar Documents

Publication Publication Date Title
CN208886201U (en) A kind of natural gas line attachment device
CN207112150U (en) A kind of natural gas line connects support meanss
CN109211481A (en) Welding bellows device for detecting leak point
CN106122639B (en) A kind of hose connection device
CN208090114U (en) A kind of natural gas line switching jointing
CN205745740U (en) A kind of conduit coupling of good airproof performance
CN209705481U (en) A kind of high intensity flange
CN112728169A (en) Check valve with adjusting function
CN203732107U (en) Glass float flowmeter
CN204302107U (en) The pressure testing device of inspection tubing and bend pipe tools
CN208579051U (en) A kind of sewage treatment Pipe couplings
CN207729081U (en) A kind of sandblasting pipeline
CN110043724A (en) A kind of flaring hoop type pipeline connector
CN206862586U (en) Single steel pipe hydrostatic testing tank
CN108106793A (en) A kind of pressure-detecting device of pipe end
CN206002263U (en) Pipe end pressure-detecting device
CN114776900A (en) Self-locking sealing pipeline connecting device
CN213018212U (en) Pipeline butt joint device
CN210830844U (en) Metal flange joint
CN209068005U (en) A kind of stainless steel tube connection component
CN208968753U (en) Welding bellows device for detecting leak point
CN209164839U (en) A kind of copper pipe connector of high reliablity
CN208651897U (en) A kind of multi-faceted vacuum device of press
CN215026582U (en) Filter equipment for municipal administration pipeline
CN219453186U (en) Vacuum pipeline suitable for vacuum furnace

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant