CN208840444U - A kind of flange forging apparatus of rapid cooling - Google Patents

A kind of flange forging apparatus of rapid cooling Download PDF

Info

Publication number
CN208840444U
CN208840444U CN201821690439.1U CN201821690439U CN208840444U CN 208840444 U CN208840444 U CN 208840444U CN 201821690439 U CN201821690439 U CN 201821690439U CN 208840444 U CN208840444 U CN 208840444U
Authority
CN
China
Prior art keywords
slideway
pedestal
flange
rapid cooling
fixed block
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
CN201821690439.1U
Other languages
Chinese (zh)
Inventor
费新海
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.)
Wuxi Xingda Petrochemical Fittings Co Ltd
Original Assignee
Wuxi Xingda Petrochemical Fittings 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 Wuxi Xingda Petrochemical Fittings Co Ltd filed Critical Wuxi Xingda Petrochemical Fittings Co Ltd
Priority to CN201821690439.1U priority Critical patent/CN208840444U/en
Application granted granted Critical
Publication of CN208840444U publication Critical patent/CN208840444U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Forging (AREA)

Abstract

The utility model discloses a kind of flange forging apparatus of rapid cooling, including pedestal, motor, compressed spring and third slideway, the pedestal left end is provided with forge furnace, hydraulic stem is provided on the hydraulic cylinder, first slideway both ends are connected with pedestal, the motor setting is in mobile box, described second slideway or so end is provided with fixed block, the compressed spring covers on the outside of pillar, the limitation ring is arranged in the second groove, and second groove be provided with pedestal upper surface, the third slideway is arranged in pedestal right end, and spray head is provided on third slideway, the connecting tube runs through pedestal, and connecting tube lower end is provided with water pump, the pedestal bottom righthand side is provided with water tank, and bottom is provided with water pump in water tank.The flange forging apparatus of the rapid cooling, under the action of third slideway, mobile spray head makes spray head alignment flange, subsequent start-up water pump, water is spread across on flange by spray head, achievees the effect that fast cooling.

Description

A kind of flange forging apparatus of rapid cooling
Technical field
The utility model relates to forged flange technical field, the flange forging apparatus of specially a kind of rapid cooling.
Background technique
Flange is called flange flange disk or flange, and flange is part interconnected between axis and axis, between pipe end Connection;Also have with the flange on equipment is imported and exported, for the connection between two equipment, such as speed reducer flange, flange connects It connects or bump joint, refers to and releasable connection as one group of combined sealing structure is connected with each other by flange, gasket and bolt three, Pipe flange means in plumbing installation with effective flange, with the inlet and outlet flange for meaning equipment in equipment, has hole on flange Eye, bolt are close to two flanges, with liner sealing between flange.Flange point is threadedly coupled flange, welded flange and clip flange, method Orchid all uses in pairs, and an acting flange, the use welded flange of four kilograms of pressure above, two panels method can be used in low pressure pipeline Gasket is added between blue disk, then uses bolt fastening, and the flange thicknesses of different pressures is different, and the bolt that they are used is not yet Together, water pump and valve, when connecting with pipeline, corresponding flange shape is also made, also referred to as in the part of these equipment facilities Flanged joint, all to be bolted while closed union piece in two planar perimeter uses, general referred to as flange.
Present market uses traditional flange forging apparatus, is not easy to the rapid cooling of flange, thus reduces forging effect Rate, therefore, it is necessary to a kind of flange forging apparatus of rapid cooling to improve the above problem.
Utility model content
The purpose of this utility model is to provide a kind of flange forging apparatus of rapid cooling, to solve above-mentioned background technique Traditional flange forging apparatus of middle proposition, is not easy to the rapid cooling of flange, thus reduces the problem of forging efficiency.
To achieve the above object, the utility model provides the following technical solutions: a kind of flange forging apparatus of rapid cooling, Including pedestal, motor, compressed spring and third slideway, the pedestal left end is provided with forge furnace, and base bottom is provided with leakage Net, while bottom is provided with hydraulic cylinder in pedestal, hydraulic stem is provided on the hydraulic cylinder, and hydraulic stem upper end is provided with movement Box, while mobile box left and right ends are arranged in the first slideway, first slideway both ends are connected with pedestal, and first Slideway is arranged on the outside of hydraulic cylinder, while the setting of the first slideway, in inside of slipping through the net, the motor setting is in mobile box, and motor On be provided with motor shaft, while motor shaft upper end is provided with the second slideway, and described second slideway or so end is provided with fixed block, And fixed block inner sidewall offers the first groove, while pillar is provided in the first groove, the compressed spring covers outside pillar Side, and compressed spring both ends are each attached to fixed block inner sidewall, while being provided with limitation ring on the outside of fixed block, the limitation ring is set It sets in the second groove, and the second groove is provided with pedestal upper surface, the third slideway setting is in pedestal right end, and third is sliding Spray head is provided on road, while spray head lower end is provided with connecting tube, the connecting tube runs through pedestal, and connecting tube lower end is provided with Water pump, the pedestal bottom righthand side is provided with water tank, and bottom is provided with water pump in water tank.
Preferably, described to slip through the net in circular ring shape, and the spacing between greater than two the first slideways of internal diameter of slipping through the net.
Preferably, the mobile box and the first slideway constitute sliding equipment, and there are two the settings of the first slideway.
Preferably, second slideway and fixed block constitute sliding equipment, and fixed block is symmetrical about motor shaft central axes There are two settings.
Preferably, first groove length is less than the half of strut lengths, and strut lengths are greater than the second slideway length.
Preferably, the third slideway and spray head constitute sliding equipment, and third slideway length is greater than limitation ring outer diameter Half.
Preferably, the bottom of the third slideway, which is additionally provided with, is collected by filtration bucket, and the bucket that is collected by filtration is located at the third The output end of slideway, and the bucket that is collected by filtration is fixedly connected with the third slideway.
Preferably, described be collected by filtration on bucket has filter screen, and the filter screen is in plane, described that the defeated of bucket is collected by filtration Outlet stretches in the water tank.
Compared with prior art, the utility model has the beneficial effects that the flange forging apparatus of the rapid cooling,
(1) be provided with hydraulic cylinder, limitation ring, fixed block, compressed spring and the second slideway makes under the action of hydraulic cylinder Motor shaft moves up, and limitation ring elder generation and flange contact push down flange, moves up the fixed block on the inside of limitation ring, and Being detached from limitation ring moves fixed block outward under the action of compressed spring and the second slideway, and withstands flange, reaches Convenient for fixed purpose;
(2) it is provided with motor, under the action of motor, so that motor shaft is driven fixed block rotation, so that flange be made to rotate, adds Fast air flowing, plays the effect of cooling;
(3) it is provided with third slideway, spray head and water pump, under the action of third slideway, mobile spray head makes spray head be directed at method Orchid, subsequent start-up water pump, water are spread across on flange by spray head, achieve the effect that fast cooling.
(4) bucket is collected by filtration by the setting in the bottom of third slideway, after the flushing water for being used to cool down being filtered, Be recycled to inside water tank, reused, can biggish saving water resource, avoid the waste at water source.
Detailed description of the invention
Fig. 1 is the utility model schematic view of the front view;
Fig. 2 is part A structural schematic diagram in the utility model Fig. 1;
Fig. 3 is the second slideway of the utility model, fixed block, the first groove, compressed spring, pillar connect vertical view with limitation ring Structural schematic diagram.
In figure: 1, pedestal, 2, forge furnace, 3, slip through the net, 4, hydraulic cylinder, 5, mobile box, the 6, first slideway, 7, motor, 8, electricity Arbor, the 9, second slideway, 10, fixed block, the 11, first groove, 12, compressed spring, 13, pillar, 14, limitation ring, 15, second is recessed Slot, 16, third slideway, 17, spray head, 18, connecting tube, 19, water pump, 20, water tank, 21, hydraulic stem, 22, bucket is collected by filtration.
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.
If occurring electric elements etc. in this article, it is electrically connected with extraneous main controller and 220V alternating current, and master control Device can play the conventionally known equipment of control for computer etc., if while occurring motor, water pump, dehvery pump and hydraulic cylinder in text Deng then it is existing known device.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of flange forging apparatus of rapid cooling, packet It includes pedestal 1, forge furnace 2,3, hydraulic cylinder 4 of slipping through the net, mobile box 5, the first slideway 6, motor 7, motor shaft 8, the second slideway 9, fix Block 10, the first groove 11, compressed spring 12, pillar 13, limitation ring 14, the second groove 15, third slideway 16, spray head 17, connection Pipe 18, water pump 19, water tank 20 and hydraulic stem 21,1 left end of pedestal are provided with forge furnace 2, and 1 bottom of pedestal is provided with and slips through the net 3, Bottom is provided with hydraulic cylinder 4 in pedestal 1 simultaneously, hydraulic stem 21 is provided on hydraulic cylinder 4, and 21 upper end of hydraulic stem is provided with movement Box 5, while mobile 5 left and right ends of box are arranged in the first slideway 6,6 both ends of the first slideway are connected with pedestal 1, and the The setting of one slideway 6 is in 4 outside of hydraulic cylinder, while the setting of the first slideway 6, in 3 insides of slipping through the net, motor 7 is arranged in mobile box 5, and Motor shaft 8 is provided on motor 7, while 8 upper end of motor shaft is provided with the second slideway 9, the second slideway 9 or so end is provided with solid Determine block 10, and 10 inner sidewall of fixed block offers the first groove 11, while being provided with pillar 13, compressed spring in the first groove 11 12 sets in the outside of pillar 13, and 12 both ends of compressed spring are each attached to 10 inner sidewall of fixed block, while being arranged on the outside of fixed block 10 Restricted ring 14, limitation ring 14 is arranged in the second groove 15, and the second groove 15 is provided with 1 upper surface of pedestal, third slideway 16 are arranged in 1 right end of pedestal, and spray head 17 are provided on third slideway 16, while 17 lower end of spray head is provided with connecting tube 18, even Adapter tube 18 runs through pedestal 1, and 18 lower end of connecting tube is provided with water pump 19, and 1 bottom righthand side of pedestal is provided with water tank 20, and water tank Bottom is provided with water pump 19 in 20, is provided with hydraulic cylinder 4, limitation ring 14, fixed block 10, compressed spring 12 and the second slideway 9, Under the action of hydraulic cylinder 4, move up motor shaft 8,14 elder generation of limitation ring and flange contact are pushed down flange, made in limitation ring 14 The fixed block 10 of side moves up, and is detached from limitation ring 14, under the action of compressed spring 12 and the second slideway 9, makes to fix Block 10 moves outward, and withstands flange, achievees the purpose that be provided with motor convenient for fixation, under the action of motor, make electricity Arbor drives fixed block rotation, so that flange be made to rotate, accelerates air flowing, plays the effect of cooling;It is provided with third slideway 16, spray head 17 and water pump 19, under the action of third slideway 16, mobile spray head 17 makes 17 alignment flange of spray head, subsequent start-up water Pump, water are spread across on flange by spray head, achieve the effect that fast cooling, are collected by filtration by the setting in the bottom of third slideway Bucket can be recycled to after the flushing water filtering for being used to cool down inside water tank, be reused, can biggish section About water resource avoids the waste at water source.
This example slips through the net 3 in circular ring shape, and the spacing between greater than two the first slideways 6 of 3 internal diameters of slipping through the net, and is slipping through the net 3 Under effect, the water penetrated into pedestal 1 is made to pass through 3 outflow pedestals 1 of slipping through the net.
Mobile box 5 and the first slideway 6 constitute sliding equipment, and there are two the settings of the first slideway 6, limit in the first slideway 6 Under, make mobile box 5 is straight to move up and down.
Second slideway 9 constitutes sliding equipment with fixed block 10, and fixed block 10 is symmetrically arranged with about 8 central axes of motor shaft Two, under the action of the second slideway 9, fixed block 10 is avoided to be detached from the upper end of motor shaft 8 under the action of compressed spring 12, if It is equipped with third slideway 16, spray head 17 and water pump 19, under the action of third slideway 16, mobile spray head 17 makes 17 alignment method of spray head Orchid, subsequent start-up water pump, water are spread across on flange by spray head, achieve the effect that fast cooling.
First groove, 11 length is less than the half of 13 length of pillar, and 13 length of pillar is greater than 9 length of the second slideway, is propping up Under the limitation of column 13, fixed block 10 can only be moved left and right, and fixed block 10 is made more effectively to fix flange.
Third slideway 16 and spray head 17 constitute sliding equipment, and 16 length of third slideway is greater than the one of 14 outer diameter of limitation ring Half, under the action of third slideway 16, in order to mobile spray head 17, make 17 alignment flange of spray head, by third slideway 16 Bucket is collected by filtration in bottom setting, can be recycled to inside water tank by after the flushing water filtering for being used to cool down, carry out repeating benefit With, can biggish saving water resource, avoid the waste at water source.
Working principle: when using the flange forging apparatus of the rapid cooling, the flange forged in forge furnace 2 needs to drop Flange is taken out and is placed on the first groove 11 by Wen Shi, and hydraulic cylinder 4, motor 7 and water pump 19 are connected external power supply, starting Hydraulic cylinder 4, hydraulic cylinder 4 drive hydraulic stem 21 to move up, and move up mobile box 5 on the first slideway 6, make motor shaft 8 It drives fixed block 10 and limitation ring 14 to move upwardly together, continues the process moved upwardly together in fixed block 10 and limitation ring 14 In, be provided with hydraulic cylinder 4, limitation ring 14, fixed block 10, compressed spring 12 and the second slideway 9 makes under the action of hydraulic cylinder 4 Motor shaft 8 moves up, and 14 elder generation of limitation ring and flange contact push down flange, makes the fixed block 10 of the inside of limitation ring 14 to moving up It is dynamic, and it is detached from limitation ring 14, under the action of compressed spring 12 and the second slideway 9, move fixed block 10 outward, and Flange is withstood, is achieved the purpose that convenient for fixation, when limitation ring 14 is blocked by flange, then the disengaging limitation ring of fixed block 10 slowly 14, fixed block 10 be detached from limitation ring 14 after, under the action of compressed spring 12, make two fixed blocks 10 in the second slideway 9 to Outside is mobile, and is pressed against flange, to play the role of fixing flange, fixed block 10 is continued to move up, and makes flange There are one section of spacing between pedestal 1, to reduce friction of the flange in rotation, under the action of third slideway 16, mobile spray First 17, make the upper surface of 17 alignment flange of spray head, start motor 7 and water pump 19, motor 7 drives motor shaft 8 to rotate, makes fixed block 10 drive flange rotation, and water is spread across on flange by water pump 19 and spray head 17 at this time, is played the purpose of fast cooling, is provided with electricity Machine makes motor shaft drive fixed block rotation under the action of motor, so that flange be made to rotate, accelerates air flowing, plays cooling Effect;It is provided with third slideway 16, spray head 17 and water pump 19, under the action of third slideway 16, mobile spray head 17 makes spray head 17 alignment flanges, subsequent start-up water pump, water are spread across on flange by spray head, achieve the effect that fast cooling, by sliding in third Bucket is collected by filtration in the bottom setting in road, can be recycled to inside water tank by after the flushing water filtering for being used to cool down, carry out weight It is multiple to utilize, can biggish saving water resource, the waste at water source is avoided, wherein the water penetrated into pedestal 1 can pass through 3 streams of slipping through the net It goes out, the content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after End ", " both ends ", " one end ", " other end ", "center", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " being provided with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect It connects, or is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition Understand the concrete meaning of above-mentioned term in the present invention.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (8)

1. a kind of flange forging apparatus of rapid cooling, including pedestal (1), motor (7), compressed spring (12) and third slideway (16), it is characterised in that: pedestal (1) left end is provided with forge furnace (2), and pedestal (1) bottom is provided with slip through the net (3), together When pedestal (1) interior bottom be provided with hydraulic cylinder (4), be provided with hydraulic stem (21) on the hydraulic cylinder (4), and on hydraulic stem (21) End is provided with mobile box (5), while mobile box (5) left and right ends are arranged in the first slideway (6), first slideway (6) Both ends are connected with pedestal (1), and the first slideway (6) is arranged on the outside of hydraulic cylinder (4), while the first slideway (6) setting exists It slips through the net on the inside of (3), motor (7) setting is provided with motor shaft (8), while motor in mobile box (5) on motor (7) Axis (8) upper end is provided with the second slideway (9), and the second slideway (9) left and right end is provided with fixed block (10), and fixed block (10) inner sidewall offers the first groove (11), while being provided with pillar (13), the compressed spring in the first groove (11) (12) it covers on the outside of pillar (13), and compressed spring (12) both ends are each attached to fixed block (10) inner sidewall, while fixed block (10) outside is provided with limitation ring (14), and limitation ring (14) setting is in the second groove (15), and the second groove (15) is opened It is located at pedestal (1) upper surface, the third slideway (16), which is arranged in pedestal (1) right end, and on third slideway (16), is provided with spray Head (17), while spray head (17) lower end is provided with connecting tube (18), the connecting tube (18) runs through pedestal (1), and connecting tube (18) lower end is provided with water pump (19), and pedestal (1) bottom righthand side is provided with water tank (20), and water tank (20) interior bottom is set It is equipped with water pump (19).
2. the flange forging apparatus of rapid cooling according to claim 1, it is characterised in that: described slip through the net (3) are in annulus Shape, and the spacing between greater than two the first slideways (6) of (3) internal diameter of slipping through the net.
3. a kind of flange forging apparatus of rapid cooling according to claim 1, it is characterised in that: the mobile box (5) Sliding equipment is constituted with the first slideway (6), and there are two the first slideway (6) settings.
4. the flange forging apparatus of rapid cooling according to claim 1, it is characterised in that: second slideway (9) with Fixed block (10) constitute sliding equipment, and fixed block (10) about motor shaft (8) central axes be symmetrical arranged there are two.
5. the flange forging apparatus of rapid cooling according to claim 1, it is characterised in that: first groove (11) is long Degree is less than the half of pillar (13) length, and pillar (13) length is greater than the second slideway (9) length.
6. the flange forging apparatus of rapid cooling according to claim 1, it is characterised in that: the third slideway (16) with Spray head (17) constitutes sliding equipment, and third slideway (16) length is greater than the half of limitation ring (14) outer diameter.
7. the flange forging apparatus of rapid cooling according to claim 1, it is characterised in that: the third slideway (16) Bottom, which is additionally provided with, to be collected by filtration bucket (22), the output end that bucket (22) are collected by filtration and are located at the third slideway (16), and institute It states and bucket (22) is collected by filtration is fixedly connected with the third slideway (16).
8. the flange forging apparatus of rapid cooling according to claim 7, it is characterised in that: described that bucket (22) are collected by filtration Upper to have filter screen, the filter screen is in plane, and the output end that bucket (22) is collected by filtration stretches to the water tank (20) It is interior.
CN201821690439.1U 2018-10-18 2018-10-18 A kind of flange forging apparatus of rapid cooling Active CN208840444U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821690439.1U CN208840444U (en) 2018-10-18 2018-10-18 A kind of flange forging apparatus of rapid cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821690439.1U CN208840444U (en) 2018-10-18 2018-10-18 A kind of flange forging apparatus of rapid cooling

Publications (1)

Publication Number Publication Date
CN208840444U true CN208840444U (en) 2019-05-10

Family

ID=66375753

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821690439.1U Active CN208840444U (en) 2018-10-18 2018-10-18 A kind of flange forging apparatus of rapid cooling

Country Status (1)

Country Link
CN (1) CN208840444U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109014013A (en) * 2018-10-18 2018-12-18 无锡市星达石化配件有限公司 A kind of flange forging apparatus of rapid cooling
CN112517819A (en) * 2020-11-18 2021-03-19 浙江瑞朗锻造有限公司 High quick forging equipment of security

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109014013A (en) * 2018-10-18 2018-12-18 无锡市星达石化配件有限公司 A kind of flange forging apparatus of rapid cooling
CN109014013B (en) * 2018-10-18 2024-03-22 无锡市星达石化配件有限公司 Quick refrigerated flange forging device
CN112517819A (en) * 2020-11-18 2021-03-19 浙江瑞朗锻造有限公司 High quick forging equipment of security

Similar Documents

Publication Publication Date Title
CN208840444U (en) A kind of flange forging apparatus of rapid cooling
CN202137546U (en) Opening-to-opening centralizer for welding of pipelines
CN202687930U (en) False cup mechanism
CN110017162B (en) Colliery is movable spraying dust device in pit
CN209491900U (en) Horizontal automatic assembly and disassembly stairway die
CN204611345U (en) A kind of synchronous revolving oil gas combined transportation device
CN105421786A (en) Large steel formwork firewall concrete pumping auxiliary equipment
CN109014013A (en) A kind of flange forging apparatus of rapid cooling
CN205276887U (en) Hot wall concrete pumping auxiliary assembly is prevented to large -scale steel form
CN205008205U (en) A rotatory rubber coating platform of 6 -degree of freedom for production of cavity glass
CN110355628A (en) A kind of inner wall of the pipe arrangement for grinding
CN201949706U (en) Filtering device and locomotive
CN202045870U (en) Flaring machine for plastic-steel composite pressure tube
CN208614676U (en) Assist disassemblerassembler
CN209040777U (en) A kind of continuous sand flushing well-flushing tool
CN204239172U (en) A kind of vertical reciprocating piston type BOG gas compressor
CN206522122U (en) A kind of direct-drive type weight balancing energy-saving oil pumping machine
CN205659587U (en) Oil recovery well is with annotating agent mixing arrangement
CN203901213U (en) Tool special for detaching elastic pin coupling
CN207034323U (en) The dual-purpose flow controller of hand-electric for oilfield injection operation
CN207348829U (en) Hydraulic double-arm balance oil extractor
CN204128902U (en) A kind of clamping of the tubing for multitube high pressure water pressure test machine and drawing mechanism
CN221248667U (en) Cylinder sleeve hydraulic pressure quick dismounting device
CN205479959U (en) Emergent extrusion cut -off equipment of heavy -calibre steel pipeline
CN216843675U (en) Turnover device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant