CN209012595U - A kind of effective connection structure of plastic coated composite steel - Google Patents

A kind of effective connection structure of plastic coated composite steel Download PDF

Info

Publication number
CN209012595U
CN209012595U CN201821878121.6U CN201821878121U CN209012595U CN 209012595 U CN209012595 U CN 209012595U CN 201821878121 U CN201821878121 U CN 201821878121U CN 209012595 U CN209012595 U CN 209012595U
Authority
CN
China
Prior art keywords
composite steel
steel tube
fixedly installed
located remotely
card slot
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.)
Expired - Fee Related
Application number
CN201821878121.6U
Other languages
Chinese (zh)
Inventor
邹继明
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.)
Tianjin Haoli Composite Steel Pipe Manufacturing Co Ltd
Original Assignee
Tianjin Haoli Composite Steel Pipe Manufacturing 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 Tianjin Haoli Composite Steel Pipe Manufacturing Co Ltd filed Critical Tianjin Haoli Composite Steel Pipe Manufacturing Co Ltd
Priority to CN201821878121.6U priority Critical patent/CN209012595U/en
Application granted granted Critical
Publication of CN209012595U publication Critical patent/CN209012595U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The utility model discloses a kind of effective connection structures of plastic coated composite steel, including the first composite steel tube, the second composite steel tube is slidably fitted in first composite steel tube, one end of second composite steel tube extends to the outside of the first composite steel tube, the top and bottom of second composite steel tube are fixedly installed with fixed block, fixed block offers the first card slot close to the side of the first composite steel tube, the top and bottom of first composite steel tube are fixedly installed with limited block, one end that two limited blocks are located remotely from each other is fixedly installed with sliding bar, and two sliding bars extend respectively to mutually clamp in corresponding first card slot and with corresponding first card slot.The utility model structure is simple, easy to operate, and quickly and easily the first composite steel tube and the second composite steel tube can link together, and processing technology is simple, can effectively ensure that the quality of steel pipe connection, so meeting the demand of people.

Description

A kind of effective connection structure of plastic coated composite steel
Technical field
The utility model relates to technical field of pipeline connection more particularly to a kind of effective connection structures of plastic coated composite steel.
Background technique
Pipeline is that pumped (conveying) medium is most quick, cheap and reliable method, and natural gas and water, petroleum, coal cinder etc. can pass through Pipeline conveys, and currently used pipeline includes plastic tube, pipe of cement, cast iron pipe, steel pipe etc., especially steel pipe, due to its property Energy quality is significantly better than other tubing, therefore is widely used, with the continuous development of social productive forces, at present in industrial application The pipe diameter used is increasing, and the interface of steel pipe installs existing complex process, inefficient, construction cost height, influences to connect The weakness such as mouthful qualitative factor is more are also just more obvious, become the most important factor for restricting steel pipeline development, steel pipe connects at present Degree of lip-rounding formula mainly has the modes such as threaded connection, flanged joint and welded connecting, is only applicable to minor-diameter steel-tube wherein being threadedly coupled, Although and flanged joint is appropriate reliable and is suitable for large diameter steel pipe, needs to increase the accessories such as flange, cost is very high-leveled and difficult with general All over application, be welded to connect due to being live manual operation, even more exist complex process fall behind large labor intensity, construction efficiency it is low, Therefore how the defect that weldquality is affected by environment, weather and operator's level provides a kind of easy for installation, quality Reliable steel pipe connection structure becomes those skilled in the art's urgent problem to be solved.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of plastic coated composite steel proposed Effective connection structure.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of effective connection structure of plastic coated composite steel, including the first composite steel tube, the interior sliding peace of first composite steel tube Equipped with the second composite steel tube, one end of the second composite steel tube extends to the outside of the first composite steel tube, the top of the second composite steel tube Portion and bottom are fixedly installed with fixed block, and fixed block offers the first card slot close to the side of the first composite steel tube, and first is multiple The top and bottom for closing steel pipe are fixedly installed with limited block, and one end that two limited blocks are located remotely from each other is fixedly installed with sliding Bar, and two sliding bars extend respectively to mutually clamp in corresponding first card slot and with corresponding first card slot, two the Limiting groove is offered on the side inner wall that one card slot is located remotely from each other, and gag lever post, two cunnings are slidably fitted in limiting groove The side that lever is located remotely from each other offers the second card slot, and two gag lever posts one end close to each other is respectively with corresponding Two draw-in groove mutually clamps, and the side that two fixed blocks are located remotely from each other offers mounting hole, and mounting hole is connected with limiting groove, peace Dress is slidably fitted with pull rod in hole, what two pull rods one end close to each other was located remotely from each other with corresponding two gag lever posts respectively One end is fixedly connected, and one end that two gag lever posts are located remotely from each other is fixedly installed with the installation spring being set on the outside of pull rod, and two One end that a installation spring is located remotely from each other is fixedly installed in respectively in the top inner wall and bottom interior wall of corresponding limiting groove, One end that two pull rods are located remotely from each other extends respectively to the outside of corresponding fixed block and is fixedly installed with portable pillar, and two solid Determine the side that block is located remotely from each other to open up there are two locating slot, locating rod be slidably fitted in locating slot, and be located at it is same vertical One end that two locating rods on axis are located remotely from each other is fixed with corresponding two portable pillars side close to each other respectively to be connected It connects, two on same vertical axis locating rod one end close to each other offers loose slot, sliding peace in loose slot Equipped with motion bar, and two motion bars one end close to each other respectively with the top inner wall of corresponding locating slot and bottom interior wall It is fixedly connected.
Preferably, two locating rod one end close to each other on same vertical axis, which are fixedly installed with, is set in Retaining spring on the outside of motion bar, two retaining springs one end close to each other respectively with the top inner wall of corresponding locating slot It is fixedly connected with bottom interior wall.
Preferably, limit sliding chutes, the fixed peace in the two sides of gag lever post are offered on the two sides inner wall of the limiting groove Equipped with position limiting slide block, and two position limiting slide blocks are slidably connected with corresponding limit sliding chutes respectively.
Preferably, through-hole is offered on two position limiting slide blocks, support rod, and the top of support rod is slidably fitted in through-hole End and bottom end are fixedly connected with the top inner wall of corresponding limit sliding chutes and bottom interior wall respectively.
Preferably, one end that two position limiting slide blocks are located remotely from each other is embedded with multiple balls, and multiple balls respectively with phase Corresponding limit sliding chutes roll connection.
Preferably, be fixedly installed with sealing ring in first composite steel tube, and the second composite steel tube by sealing ring with The sealing cooperation of first composite steel tube.
The utility model has the beneficial effects that
By the first composite steel tube, the second composite steel tube, fixed block, the first card slot, limited block, sliding bar, limiting groove, Gag lever post, the second card slot, mounting hole, pull rod, installation spring, portable pillar, locating slot, locating rod, loose slot, sliding bar and positioning Under the mutual cooperation of spring, quickly and easily the first composite steel tube and the second composite steel tube can be linked together, process work Skill is simple, can effectively ensure that the quality of steel pipe connection, so the demand of people is met, in use, pulling portable pillar, portable pillar Locating rod is driven to be moved, locating rod stretching retaining spring, retaining spring energy-absorbing, meanwhile, portable pillar drives pull rod to be moved Dynamic, pull rod drives gag lever post to be moved, and gag lever post compression installation spring installs spring energy-absorbing, gag lever post is made to remove the second card In slot, sliding bar is then pulled, removes sliding bar in the first card slot, to realize the first composite steel tube and second is compound Steel pipe is separated, and when needing for the first composite steel tube and the second composite steel tube to be attached, the second composite steel tube is caught in It in first composite steel tube, is caught in sliding bar in the first card slot, then unclamps portable pillar, pass through installation spring and retaining spring Under recoil of spring active force, it is caught in gag lever post in the second card slot, the utility model structure is simple, and it is easy to operate, it can be quick Easily the first composite steel tube and the second composite steel tube are linked together, processing technology is simple, can effectively ensure that steel pipe connects Quality, so meeting the demand of people.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of effective connection structure of plastic coated composite steel schematic view of the front view;
Fig. 2 be the utility model proposes a kind of effective connection structure of plastic coated composite steel part A structural schematic diagram.
In figure: 1 first composite steel tube, 2 second composite steel tubes, 3 fixed blocks, 4 first card slots, 5 limited blocks, 6 sliding bars, 7 Limiting groove, 8 gag lever posts, 9 second card slots, 10 mounting holes, 11 pull rods, 12 installation springs, 13 portable pillars, 14 locating slots, 15 are determined Position bar, 16 loose slots, 17 sliding bars, 18 retaining springs.
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.
Referring to Fig.1-2, the effective connection structure of a kind of plastic coated composite steel, including the first composite steel tube 1, the first composite steel tube 1 It is inside slidably fitted with the second composite steel tube 2, one end of the second composite steel tube 2 extends to the outside of the first composite steel tube 1, and second is multiple The top and bottom for closing steel pipe 2 are fixedly installed with fixed block 3, and fixed block 3 offers the close to the side of the first composite steel tube 1 One card slot 4, the top and bottom of the first composite steel tube 1 are fixedly installed with limited block 5, two limited blocks 5 be located remotely from each other one End is fixedly installed with sliding bar 6, and two sliding bars 6 extend respectively in corresponding first card slot 4 and with it is corresponding First card slot, 4 phase clamps, and offers limiting groove 7, limiting groove 7 on the side inner wall that two the first card slots 4 are located remotely from each other It is inside slidably fitted with gag lever post 8, the side that two sliding bars 6 are located remotely from each other offers the second card slot 9, and two gag lever posts 8 One end close to each other is clamped with corresponding second card slot, 9 phase respectively, and the side that two fixed blocks 3 are located remotely from each other offers Mounting hole 10, mounting hole 10 are connected with limiting groove 7, and pull rod 11 is slidably fitted in mounting hole 10, and two pull rods 11 are mutual One end that close one end is located remotely from each other with corresponding two gag lever posts 8 respectively is fixedly connected, and two gag lever posts 8 are located remotely from each other One end be fixedly installed with the installation spring 12 for being set in the outside of pull rod 11, one end point that two installation springs 12 are located remotely from each other It is not fixedly installed in the top inner wall and bottom interior wall of corresponding limiting groove 7, one end that two pull rods 11 are located remotely from each other It extends respectively to the outside of corresponding fixed block 3 and is fixedly installed with portable pillar 13, the side that two fixed blocks 3 are located remotely from each other It opens up there are two locating slot 14, locating rod 15, and two be located on same vertical axis is slidably fitted in locating slot 14 One end that locating rod 15 is located remotely from each other is fixedly connected with corresponding two portable pillars 13 side close to each other respectively, is located at same Two locating rods 15 on one vertical axis one end close to each other offers loose slot 16, is slidably fitted in loose slot 16 Motion bar 17, and two motion bars 17 one end close to each other is respectively and in the top inner wall and bottom of corresponding locating slot 14 Wall is fixedly connected, by the first composite steel tube 1, the second composite steel tube 2, fixed block 3, the first card slot 4, limited block 5, sliding bar 6, Limiting groove 7, gag lever post 8, the second card slot 9, mounting hole 10, pull rod 11, installation spring 12, portable pillar 13, locating slot 14, positioning Bar 15, loose slot 16, sliding bar 17 and retaining spring 18 mutual cooperation under, can be quickly and easily by the first composite steel tube 1 It links together with the second composite steel tube 2, processing technology is simple, can effectively ensure that the quality of steel pipe connection, so meeting people Demand, in use, pull portable pillar 13, portable pillar 13 drive locating rod 15 moved, locating rod 15 stretch positioning bullet Spring 18,18 energy-absorbing of retaining spring, meanwhile, portable pillar 13 drives pull rod 11 to be moved, and pull rod 11 drives gag lever post 8 to be moved Dynamic, the compression installation spring 12 of gag lever post 8 installs 12 energy-absorbing of spring, removes gag lever post 8 in second card slot 9, then pulls sliding Bar 6 removes sliding bar 6 in first card slot 4, is divided the first composite steel tube 1 and the second composite steel tube 2 to realize From it is compound that the second composite steel tube 2 is caught in first when needing for the first composite steel tube 1 and the second composite steel tube 2 to be attached It in steel pipe 1, is caught in sliding bar 6 in first card slot 4, then unclamps portable pillar 13, pass through installation spring 12 and retaining spring 18 Recoil of spring active force under, be caught in gag lever post 8 in second card slot 9, the utility model structure is simple, easy to operate, can Quickly and easily the first composite steel tube 1 and the second composite steel tube 2 are linked together, processing technology is simple, can effectively ensure that steel The quality of pipe connection, so meeting the demand of people.
In the utility model, two locating rods 15 on same vertical axis one end close to each other is fixedly mounted Have a retaining spring 18 for being set in the outside of motion bar 17, two retaining springs 18 one end close to each other respectively with it is corresponding fixed The top inner wall of position slot 14 is fixedly connected with bottom interior wall, offers limit sliding chutes on the two sides inner wall of limiting groove 7, is limited The two sides of bar 8 are fixedly installed with position limiting slide block, and two position limiting slide blocks are slidably connected with corresponding limit sliding chutes respectively, and two Offer through-hole on a position limiting slide block, be slidably fitted with support rod in through-hole, and the top of support rod and bottom end respectively with phase The top inner wall of corresponding limit sliding chutes is fixedly connected with bottom interior wall, and one end that two position limiting slide blocks are located remotely from each other is embedded with Multiple balls, and multiple balls roll with corresponding limit sliding chutes connect respectively, are fixedly installed in the first composite steel tube 1 close Seal, and the second composite steel tube 2 is cooperated by sealing ring and the sealing of the first composite steel tube 1, passes through the first composite steel tube 1, second Composite steel tube 2, fixed block 3, the first card slot 4, limited block 5, sliding bar 6, limiting groove 7, gag lever post 8, the second card slot 9, installation Hole 10, pull rod 11, installation spring 12, portable pillar 13, locating slot 14, locating rod 15, loose slot 16, sliding bar 17 and retaining spring Under 18 mutual cooperation, quickly and easily the first composite steel tube 1 and the second composite steel tube 2 can be linked together, process work Skill is simple, can effectively ensure that the quality of steel pipe connection, so the demand of people is met, in use, portable pillar 13 is pulled, and activity Column 13 drives locating rod 15 to be moved, the stretching retaining spring 18 of locating rod 15,18 energy-absorbing of retaining spring, meanwhile, portable pillar 13 Pull rod 11 is driven to be moved, pull rod 11 drives gag lever post 8 to be moved, and the compression installation spring 12 of gag lever post 8 installs spring 12 Energy-absorbing removes gag lever post 8 in second card slot 9, then pulls sliding bar 6, removes sliding bar 6 in first card slot 4, thus real Show and separated the first composite steel tube 1 and the second composite steel tube 2, when needing the first composite steel tube 1 and the second clad steel When pipe 2 is attached, the second composite steel tube 2 is caught in the first composite steel tube 1, is caught in sliding bar 6 in first card slot 4, so Portable pillar 13 is unclamped afterwards, by making gag lever post 8 be caught in second under installation spring 12 and the recoil of spring active force of retaining spring 18 In card slot 9, the utility model structure is simple, easy to operate, can be quickly and easily by the first composite steel tube 1 and the second clad steel Pipe 2 links together, and processing technology is simple, can effectively ensure that the quality of steel pipe connection, so meeting the demand of people.
Working principle: in use, pulling portable pillar 13, portable pillar 13 drives locating rod 15 to be moved, and locating rod 15 is drawn Stretch retaining spring 18,18 energy-absorbing of retaining spring, meanwhile, portable pillar 13 drives pull rod 11 to be moved, and pull rod 11 drives gag lever post 8 It is moved, the compression installation spring 12 of gag lever post 8 installs 12 energy-absorbing of spring, removes gag lever post 8 in second card slot 9, then draw Dynamic sliding bar 6 removes sliding bar 6 in first card slot 4, thus realize by the first composite steel tube 1 and the second composite steel tube 2 into Row separation, when needing for the first composite steel tube 1 and the second composite steel tube 2 to be attached, is caught in first for the second composite steel tube 2 It in composite steel tube 1, is caught in sliding bar 6 in first card slot 4, then unclamps portable pillar 13, pass through installation spring 12 and positioning bullet Under the recoil of spring active force of spring 18, it is caught in gag lever post 8 in second card slot 9, is quickly and easily answered first to realize It closes steel pipe 1 and the second composite steel tube 2 links together, processing technology is simple, can effectively ensure that the quality of steel pipe connection, so full The foot demand of people.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of effective connection structure of plastic coated composite steel, including the first composite steel tube (1), which is characterized in that described first is compound It is slidably fitted with the second composite steel tube (2) in steel pipe (1), one end of the second composite steel tube (2) extends to the first composite steel tube (1) Outside, the top and bottom of the second composite steel tube (2) are fixedly installed with fixed block (3), and fixed block (3) is compound close to first The side of steel pipe (1) offers the first card slot (4), and the top and bottom of the first composite steel tube (1) are fixedly installed with limited block (5), one end that two limited blocks (5) are located remotely from each other is fixedly installed with sliding bar (6), and two sliding bars (6) each extend over It is mutually clamped in corresponding first card slot (4) and with corresponding first card slot (4), two the first card slots (4) are located remotely from each other Side inner wall on offer limiting groove (7), is slidably fitted with gag lever post (8) in limiting groove (7), two sliding bars (6) side being located remotely from each other offers the second card slot (9), and two gag lever posts (8) one end close to each other is respectively and relatively The second card slot (9) answered mutually clamps, and the side that two fixed blocks (3) are located remotely from each other offers mounting hole (10), mounting hole (10) it is connected with limiting groove (7), is slidably fitted with pull rod (11) in mounting hole (10), two pull rods (11) are close to each other One end that one end is located remotely from each other with corresponding two gag lever posts (8) respectively is fixedly connected, what two gag lever posts (8) were located remotely from each other One end is fixedly installed with the installation spring (12) being set on the outside of pull rod (11), two installations spring (12) be located remotely from each other one End is fixedly installed in respectively in the top inner wall and bottom interior wall of corresponding limiting groove (7), and two pull rods (11) are mutually remote From one end extend respectively to the outside of corresponding fixed block (3) and be fixedly installed with portable pillar (13), two fixed blocks (3) The side being located remotely from each other is opened up there are two locating slot (14), and locating slot (14) is interior to be slidably fitted with locating rod (15), and is located at One end that two locating rods (15) on same vertical axis are located remotely from each other is mutual with corresponding two portable pillars (13) respectively Close side is fixedly connected, and two on same vertical axis locating rod (15) one end close to each other offers work Dynamic slot (16), loose slot (16) is interior to be slidably fitted with motion bar (17), and one end difference that two motion bars (17) are close to each other It is fixedly connected with the top inner wall of corresponding locating slot (14) and bottom interior wall.
2. the effective connection structure of a kind of plastic coated composite steel according to claim 1, which is characterized in that be located at same vertical axes Two locating rod (15) one end close to each other on line are fixedly installed with the retaining spring being set on the outside of motion bar (17) (18), two retaining springs (18) one end close to each other is respectively and in the top inner wall and bottom of corresponding locating slot (14) Wall is fixedly connected.
3. the effective connection structure of a kind of plastic coated composite steel according to claim 1, which is characterized in that the limiting groove (7) limit sliding chutes are offered on two sides inner wall, the two sides of gag lever post (8) are fixedly installed with position limiting slide block, and two limits Position sliding block is slidably connected with corresponding limit sliding chutes respectively.
4. the effective connection structure of a kind of plastic coated composite steel according to claim 3, which is characterized in that on two position limiting slide blocks Through-hole is offered, support rod is slidably fitted in through-hole, and the top of support rod and bottom end are slided with corresponding limit respectively The top inner wall of slot is fixedly connected with bottom interior wall.
5. the effective connection structure of a kind of plastic coated composite steel according to claim 3, which is characterized in that two position limiting slide block phases Mutually separate one end is embedded with multiple balls, and multiple balls roll with corresponding limit sliding chutes connect respectively.
6. the effective connection structure of a kind of plastic coated composite steel according to claim 1, which is characterized in that first clad steel Sealing ring is fixedly installed in pipe (1), and the second composite steel tube (2) is cooperated by sealing ring and the first composite steel tube (1) sealing.
CN201821878121.6U 2018-11-15 2018-11-15 A kind of effective connection structure of plastic coated composite steel Expired - Fee Related CN209012595U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821878121.6U CN209012595U (en) 2018-11-15 2018-11-15 A kind of effective connection structure of plastic coated composite steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821878121.6U CN209012595U (en) 2018-11-15 2018-11-15 A kind of effective connection structure of plastic coated composite steel

Publications (1)

Publication Number Publication Date
CN209012595U true CN209012595U (en) 2019-06-21

Family

ID=66842443

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821878121.6U Expired - Fee Related CN209012595U (en) 2018-11-15 2018-11-15 A kind of effective connection structure of plastic coated composite steel

Country Status (1)

Country Link
CN (1) CN209012595U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283478A (en) * 2020-10-10 2021-01-29 天长市云联管道有限公司 Steel-plastic composite pipe connecting mechanism
CN112600142A (en) * 2020-12-09 2021-04-02 泰州三福船舶工程有限公司 Bridge type cable pipe
CN112664603A (en) * 2020-12-21 2021-04-16 丁金念 Stepless speed regulation air spring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283478A (en) * 2020-10-10 2021-01-29 天长市云联管道有限公司 Steel-plastic composite pipe connecting mechanism
CN112283478B (en) * 2020-10-10 2022-08-23 天长市云联管道有限公司 Steel-plastic composite pipe connecting mechanism
CN112600142A (en) * 2020-12-09 2021-04-02 泰州三福船舶工程有限公司 Bridge type cable pipe
CN112664603A (en) * 2020-12-21 2021-04-16 丁金念 Stepless speed regulation air spring

Similar Documents

Publication Publication Date Title
CN209012595U (en) A kind of effective connection structure of plastic coated composite steel
CN208886136U (en) A kind of municipal administration sewer pipe support device
CN208185551U (en) A kind of air conditioner refrigerating bidirectional throttling valve of install convenient
CN204754881U (en) Double -barrelled gas well flow string parallels
CN204510926U (en) Recover the oil note nitrogen machine assembled moving sound insulation and noise reduction room
CN209671825U (en) A kind of MPVE double-wall corrugated pipe
CN208587129U (en) Blowout of petroleum well pipeline fixing device
CN202045870U (en) Flaring machine for plastic-steel composite pressure tube
CN207213414U (en) A kind of attachment means of copper pipe
CN209164242U (en) A kind of hydraulic cylinder drum flange and cylinder barrel built-in structure
CN208129086U (en) A kind of afforestation water-storing device
CN203330181U (en) Oil drum repair device
CN105201194A (en) Scaffold system for dismantling large gas holder
CN202493236U (en) Separate type double-barreled hanger assembly
CN205217532U (en) Circular pipeline sediment removal device
CN204168829U (en) Multifunctional demountable formula plantation frame
CN207946193U (en) A kind of box culvert closed-water test conduit
CN203750253U (en) Semiautomatic backwash filter device
CN204401904U (en) Siphon rainwater suspension pipe fixing device
CN209620002U (en) A kind of construction stable suspension device of cast-in-place concrete pile
CN201794557U (en) Ultrasonic atomization drainer for gas well
CN201588581U (en) Injection, production and monitoring multi-pipe string thermal production well head device
CN208221060U (en) A kind of extracting device of oil eddy flow bar
CN205400689U (en) Steel band clamping mechanism
CN221100146U (en) Ore pulp sampling device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190621