CN102343385B - Manual pipe bender - Google Patents

Manual pipe bender Download PDF

Info

Publication number
CN102343385B
CN102343385B CN201110364579.6A CN201110364579A CN102343385B CN 102343385 B CN102343385 B CN 102343385B CN 201110364579 A CN201110364579 A CN 201110364579A CN 102343385 B CN102343385 B CN 102343385B
Authority
CN
China
Prior art keywords
bend pipe
manual
pipe
connector
dish
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
CN201110364579.6A
Other languages
Chinese (zh)
Other versions
CN102343385A (en
Inventor
张文龙
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.)
China Nuclear Industry 23 Construction Co Ltd
Original Assignee
China Nuclear Industry 23 Construction 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 China Nuclear Industry 23 Construction Co Ltd filed Critical China Nuclear Industry 23 Construction Co Ltd
Priority to CN201110364579.6A priority Critical patent/CN102343385B/en
Publication of CN102343385A publication Critical patent/CN102343385A/en
Application granted granted Critical
Publication of CN102343385B publication Critical patent/CN102343385B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

The invention relates to a manual pipe bender, which is applied to nuclear power construction and is used for solving the problems of operation inconvenience and labor wasting existing in the conventional manual pipe bender. The manual pipe bender provided by the invention comprises a pipe bending disk, a locking block, a screwing device and a fixing structure, wherein the pipe bending disk has a fan-shaped disk structure; the periphery of the fan-shaped disk structure is provided with a pipe bending groove; the locking block has a rectangular structure; the side face of the right end of the rectangular structure is fixedly connected with the section of the right side of the pipe bending disk; a U-shaped groove is formed at a position close to the left end of the locking block; the U-shaped groove is matched with the pipe bending groove for locking a pipe to be bent; the screwing device is combined with the pipe bending disk and can rotate around the pipe bending disk along the periphery of the pipe bending disk; the screwing device is provided with a working groove; the working groove is matched with the pipe bending groove to form a cavity for accommodating the bent pipe; and the fixing structure can be used for fixing the manual pipe bender on a scaffold or a fixing rod. The manual pipe bender can be operated by one person and is convenient to operate, and force is saved.

Description

Manual pipe bender
Technical field
The present invention relates to a kind of Manual pipe bender be applied in nuclear power construction process, particularly relate to the Manual pipe bender on a kind of scaffold being fixed on job site or on fixed bar.
Background technology
At present, as illustrated in fig. 1 and 2, this Manual pipe bender comprises bend pipe dish 01, puts base 02 conventional Manual pipe bender, operation block 03 and position fixing handle 04 and operating grip 05.Bend pipe dish 01 is fixedly connected to form entirety by the base 02 of putting having U-type groove with position fixing handle 04, and U-type groove can coordinate with the bend pipe groove 06 be positioned on bend pipe dish 01 periphery and operation block 03, locks tubulation to be curved.Operation block 03 with bend pipe dish 01 face in opposite directions have work nest, and this work nest can coordinate with bend pipe groove 06 cavity being formed and hold tubulation to be curved.Operation block 03 is connected by strip connector 07 with bend pipe dish 01, and is provided with operating grip 05 in operation block 03.When carrying out bend pipe and bending, staff one holds position fixing handle 04, one holds operating grip 05, and first pull operating grip 05 and operation block 03 is rotated near putting the position of base 02, then tubulation to be curved is inserted in U-type groove from the rear of operation block 03, pull operating grip 05 clockwise again, operation block 03 pipe dish 01 of going for a stroll along clockwise direction is rotated, tubulation to be curved is bent into bend pipe.When using such Manual pipe bender to bend bend pipe, need two staff to coordinate ability complete operation, operation is inconvenient and labour intensity that the is staff of responsible operation Manual pipe bender is large.
Summary of the invention
Operate inconvenient and that operation labour intensity is large problem for solving when existing Manual pipe bender bends bend pipe, the present invention proposes a kind of Manual pipe bender, this Manual pipe bender comprises bend pipe dish, latch segment, screwing device and fixed structure; Described bend pipe dish is fan-shaped disk-like structure, and the periphery of this fan-shaped disk-like structure is provided with bend pipe groove; Described latch segment is rectangular structure, and the side of this rectangular structure right-hand member is fixedly connected with the section on the right side of described bend pipe dish, and has U-type groove at the position of the left end near described latch segment, and tubulation to be curved locks by this U-type groove and described bend pipe slot fit; Described screwing device and described bend pipe dish combine and can rotate around described bend pipe dish along the periphery of described bend pipe dish, and described screwing device is provided with work nest, and this work nest and described bend pipe slot fit form the cavity holding and bend pipe; Described Manual pipe bender can be fixed on scaffold or fixed bar by described fixed structure.
When using such Manual pipe bender to bend bend pipe, only need first by scaffold at the construction field (site) fixed by snap for described Manual pipe bender or other fixed bars, then in U-type groove tubulation to be curved being placed to described latch segment and described bend pipe groove, by bend pipe dish, scratch diskette and latch segment, one end of tubulation to be curved is locked, pull handle again, make it rotate along clockwise direction, bend pipe can be bent out as required.Like this, what staff can complete separately bend pipe bends operation, and comparatively laborsaving, relative to existing dual-handle pipe bender, and can laborsaving more than 50%.
Preferably, described screwing device comprises scratch diskette, connector and handle, and described scratch diskette is disc structure, and described work nest is positioned on the periphery of this disc structure; Described connector is type platy structure or "-" type structure, and described connector is fixedly connected with described handle, and one end of described connector is provided with main rotary shaft, this main rotary shaft is contained in the connecting through hole being positioned at described bend pipe Pan Zhouxinchu, and the other end is provided with auxiliary turning cylinder; Described scratch diskette is arranged on described connector by auxiliary turning cylinder, and described scratch diskette can rotate around described auxiliary turning cylinder.Like this, in bend pipe process, scratch diskette can rotate around auxiliary bend pipe axle while rotating around bend pipe dish, more laborsaving.
Preferably, the left side wall of described U-type groove has the semicircle bend pipe locking slot of vertical through described latch segment front and back sides.
Preferably, when described connector is during type platy structure, the connecting portion of described handle and described connector is positioned at the outside of the corner of described connector, and described handle stretches out along the radial direction of described bend pipe dish; When described connector is "-" type structure, the connecting portion of described handle and described connector is positioned at the end of described connector, and described handle stretches out along the radial direction of described bend pipe dish.Like this, staff to pull handle comparatively laborsaving.
Further, the periphery of institute's bend pipe dish is provided with angle index.Like this, operating personnel, when carrying out bend pipe and bending, directly can bend bend pipe with reference to described angle index.
Preferably, described fixed structure comprises fixed block, buckle and snib, the bottom of described fixed block is semicircle curved surface, and in the bottom of described fixed block in opposite directions be provided with buckle and snib, and the bottom of described fixed block, described buckle and described snib coordinate and surround through hole; Described bend pipe tray bottom is fixedly connected with the top of described fixed block.
Preferably, described fixed block, for having certain thickness "+" type structure, "-" type structure or disc structure, described fixed block is provided with the through hole running through upper and lower bottom surface, to install described snib; Sheet projection is provided with, to install described buckle in the position that the bottom of described fixed block is corresponding with described through hole.Further, the bottom of described projection is circular arc structure.
Further, all have U-type groove in the end at described buckle two ends, and described buckle is flexibly connected with described projection by bearing pin, bolt or screw rod.Like this, described buckle with described bearing pin, bolt or screw rod for turning cylinder, can swing in the below of described fixed block, is more convenient for regulating the size of the through hole formed between described buckle and described fixed block.
Preferably, the material of described bend pipe dish, scratch diskette and latch segment is identical, and is stainless steel material.Like this, when bending bend pipe, tubulation to be curved can be avoided by Manual pipe bender carburizing, affect bending quality.
Accompanying drawing explanation
Fig. 1 is the perspective view of existing Manual pipe bender;
Fig. 2 is the decomposing schematic representation of the existing Manual pipe bender shown in Fig. 1;
Fig. 3 is the perspective view of Manual pipe bender of the present invention;
Fig. 4 is the perspective view of another angle of Manual pipe bender of the present invention;
Fig. 5 is the perspective view of the latch segment of Manual pipe bender of the present invention;
Fig. 6 is the schematic top plan view of the bend pipe structure of Manual pipe bender of the present invention;
Fig. 7 is the schematic perspective view of the fixed structure of Manual pipe bender of the present invention;
Fig. 8 is the perspective view of another angle of the fixed structure of Manual pipe bender of the present invention.
Detailed description of the invention
As shown in Figures 3 and 4, Manual pipe bender of the present invention comprises bend pipe structure 1 and fixed structure 2, wherein, bend pipe structure 1 comprises bend pipe dish 3, latch segment 4 and screwing device 5, fixed structure 2 comprises fixed block 6, buckle 7 and snib 8, and the top of fixed structure 2 is fixedly connected with by the mode of welding with the bottom of bend pipe structure 1.
As shown in Figures 3 and 4, bend pipe dish 3 is fan-shaped disk-like structure, and to be provided with cross section at its periphery be semicircular bend pipe groove 9, and is provided with connecting through hole at the axle center place of this fan-shaped disk-like structure, to hold the main rotary shaft 10 be fixedly mounted on screwing device 5.This main rotary shaft 10 bridge piece dish 3 and screwing device 5, and make screwing device 5 can go for a stroll pipe dish 3 arcuate flanks rotate.For alleviating the weight of Manual pipe bender, when meeting requirement of strength, scalloped recess can be offered at the middle part of this fan-shaped disk-like structure, also can be arranged to sectional wheel hub-like structure.Preferably, bend pipe dish 3 periphery is provided with angle value, like this, when carrying out bend pipe and bending, directly can rotate screwing device 5 to bend pipe to be bending, screwing device 5 can also be made as required to rotate different angles, bend out the bend pipe that angle of bend angle value is different.
As shown in Figures 3 and 5, latch segment 4 is rectangular structure, combine, and the faying face of the two is plane near the side of its right-hand member with the section on the right side of bend pipe dish 3, and by welding, latch segment 4 and bend pipe dish 3 is connected into entirety.U-shaped groove is had, the bottom of this U-shaped groove and the top surface being parallel of latch segment 4 at the position near latch segment 4 left end; The right side wall of this U-shaped groove is vertical with the end face of latch segment 4 and flush with the section in the left side of bend pipe dish 3.Certainly, this U-shaped groove also can be opened in the bottom of latch segment 4.Preferably, have at the middle part of the left side wall of this U-shaped groove run through former and later two sides of latch segment 4 semi-cylindrical recesses as bend pipe locking slot 11.Left end and the screwing device 5 of bend pipe locking slot 11 and the bend pipe groove 9 on bend pipe dish 3 coordinate, and tubulation to be curved can be locked on bend pipe structure 1.Like this, only need be rotated in a clockwise direction screwing device 5, tubulation to be curved can be bent into bend pipe.
Certainly, also latch segment 4 can be combined with the section in the left side of bend pipe dish 3 and form entirety.Like this, bend pipe locking slot 11 is opened on the position near latch segment 4 right-hand member, and need rotate screwing device 5 in the counterclockwise direction, and tubulation to be curved is bent into bend pipe.In addition, as shown in Figure 5, in order to coordinate the structure of the fixed block 6 of fixed structure 2, groove can also be offered in the bottom of latch segment 4 as required, mutually disturbing to avoid latch segment 4 and fixed block 6.
As shown in Figure 6, screwing device 5 comprises the connector 12 of type, scratch diskette 13 and handle 14.? position near its two ends on type connector 12 is respectively equipped with a through hole, and wherein, the through hole of right-hand member is installed with the main rotary shaft 10 of bearing pin as screwing device 5, and the through hole of left end is provided with bolt, screw rod or bearing pin as auxiliary turning cylinder 15.Certainly, connector 12 also can be "-" type platy structure.Scratch diskette 13 is complete disc structures, and is provided with work nest at the periphery of this disc structure, to coordinate with the bend pipe groove 9 on bend pipe dish 3.Be provided with positioning through hole at the circle centre position of scratch diskette 13, so that scratch diskette 13 is set on auxiliary turning cylinder 15, and then scratch diskette 13 be arranged on connector.When rotating screwing device 5, scratch diskette 13 can be made to rotate around main rotary shaft 10.Preferably, scratch diskette 13 can rotate around auxiliary turning cylinder 15.Handle 14 both can be solid hopkinson bar, and also can be hollow stem, its length can be determined according to specific needs.Connector 12 is fixedly connected with handle 14, and its connecting portion is positioned at the outside of the corner of connector 12.Preferably, handle 14 stretches out from the connecting portion of itself and connector 12 along the radial direction of bend pipe dish 3.Like this, when carrying out bend pipe and bending, the power expended required for handle 14 is pulled minimum.
When carrying out bend pipe and bending, first screwing device 5 can be taken off from bend pipe dish 5, then one end of tubulation to be curved is placed in bend pipe locking slot 11, then screwing device 5 is arranged on bend pipe dish 3, be inserted in the connecting through hole on bend pipe dish 3 by main rotary shaft 10, pulling handle 14 again makes scratch diskette 13 pipe dish 3 of going for a stroll rotate, and the tubulation to be curved be locked on bend pipe structure 1 is bent into bend pipe.Certainly, also can not take off screwing device 5, and directly tubulation to be curved to be inserted in bend pipe locking slot 11 and to be locked on bend pipe structure 1.In addition, scratch diskette 13 also can be hub-like structure.Bending in process, the radian that handle 14 rotates can adjusted as required, and after having bent, handle is circled round 25 ° ± 17 °, screwing device 5 is taken off, the bend pipe be bent into can be taken out from Manual pipe bender.
Certainly, screwing device also can be can coordinating with bend pipe dish 3 of commonly using of other those skilled in the art and pipe dish 3 of going for a stroll rotates structure tubulation to be curved being bent into bend pipe.
As shown in Fig. 3,7 and 8, fixed block 6 is "+" type structure, and its top is plane, and bottom is the curved surface in arc-shaped, and is provided with groove 16 at the end position of the left end at its top, and in this groove 16, be provided with the through hole of the upper and lower bottom surface of through fixed block 6; Position near right-hand member bottom it has been provided with certain thickness sheet projection 17, and is provided with the through slide opening in front and back at the central part of this projection 17.Buckle 7 and snib 8 are arranged on fixed block 6 opposite to each other, and wherein, buckle 7 is arranged on protruding 17, and snib 8 is arranged on fixed block 6 through through hole.Preferably, the bottom surface of protruding 17 bottoms is the curved surface in arc-shaped.Buckle 7 is can coordinate the conglobate arc structure of shape with the bottom surface of fixed block 6, all U-type groove is had in the end of its left end and right-hand member, and the relative position on two sidewalls of the U-type groove of right-hand member has the through hole running through sidewall, so that buckle 7 is arranged on protruding 17 by bearing pin.Like this, buckle 7 can swing around protruding 17 on fixed block 6.Snib 8 is arranged in the through hole of fixed block 6 left end, and the bolt cap of snib 8 or tightening latch (tightening latch is combined with hitching post and forms T-shape snib) are positioned at groove 16, and hitching post, through through hole, visits the below of fixed block 6.Like this, in use, the thickness of the scaffold or fixed bar that can be used for fixing Manual pipe bender according to job site adjusts the position of the nut on snib, and then the size of the internal diameter of circle that adjustment fixed block 6 is combined to form with buckle 7, to be fixed on scaffold or fixed bar by Manual pipe bender.Certainly, also can establish two identical projections 17 opposite to each other at the right-hand member of the bottom of fixed block 6, like this, the right-hand member of buckle 7 only need establish one with the projection of slide opening.U-type groove can certainly be opened at the right-hand member of buckle.In addition, fixed block 6 can also be disc structure or "-" type structure, as long as buckle 7 and snib 8 can be installed opposite to each other, and buckle 7 and the position of snib 8 connecting portion on snib 8 can be adjusted, make buckle 7 form a manhole with the cambered surface on fixed block 6.Certainly, the through hole that buckle 7 and fixed block 6 and snib 8 are formed also can be polygon or erose through hole.
Certainly, here the fixed structure being used for Manual pipe bender to be fixed on the scaffold of job site or fixed bar also can be that other those skilled in the art can without creative work and available fixed structure, as long as on the scaffold that Manual pipe bender can be fixed on job site by fixed structure or fixed bar.
In addition, when carrying out bend pipe and bending, can select according to the difference of the material of tubulation to be curved the Manual pipe bender being made up bend pipe dish, scratch diskette and latch segment of different materials.Such as, when will bend stainless steel tube, the Manual pipe bender of bend pipe dish, scratch diskette and the latch segment be made up of stainless steel can be selected; When carbon steel pipes is bent, the Manual pipe bender of bend pipe dish, scratch diskette and the latch segment be made up of carbon steel can be selected.That is, the bend pipe dish of Manual pipe bender, scratch diskette are preferably identical with the material of tubulation to be curved with the material of latch segment.Like this, just can avoid bending in process at bend pipe, tubulation opponent to be curved moves pipe bender carburizing or Manual pipe bender to pipe carburizing to be bending, and then affects service life and the bending quality of Manual pipe bender.

Claims (8)

1. a Manual pipe bender, is characterized in that, described Manual pipe bender comprises bend pipe dish, latch segment, screwing device and fixed structure;
Described bend pipe dish is fan-shaped disk-like structure, and the periphery of this fan-shaped disk-like structure is provided with bend pipe groove;
Described latch segment is rectangular structure, and the side of this rectangular structure right-hand member is fixedly connected with the section on the right side of described bend pipe dish, and has U-type groove at the position of the left end near described latch segment, and tubulation to be curved locks by this U-type groove and described bend pipe slot fit;
Described screwing device is fixedly installed main rotary shaft, and in this main rotary shaft is contained on described bend pipe dish connecting through hole, described screwing device and described bend pipe dish are combined and described screwing device is rotated around described bend pipe dish along the periphery of described bend pipe dish, and described screwing device is provided with work nest, this work nest and described bend pipe slot fit form the cavity holding and bend pipe;
Described fixed structure comprises fixed block, buckle and snib, and the bottom of described fixed block is semicircle curved surface, and in the bottom of described fixed block in opposite directions be provided with buckle and snib, and the bottom of described fixed block, described buckle and described snib coordinate and surround through hole; Described bend pipe tray bottom is fixedly connected with the top of described fixed block, described Manual pipe bender can be fixed on scaffold or fixed bar.
2. Manual pipe bender according to claim 1, is characterized in that, described screwing device comprises scratch diskette, connector and handle, and described scratch diskette is disc structure, and described work nest is positioned on the periphery of this disc structure; Described connector be " " type platy structure or " " type structure, and described connector is fixedly connected with described handle, and one end of described connector is provided with main rotary shaft, this main rotary shaft is contained in the connecting through hole being positioned at described bend pipe Pan Zhouxinchu, and the other end is provided with auxiliary turning cylinder; Described scratch diskette is arranged on described connector by auxiliary turning cylinder, and described scratch diskette can rotate around described auxiliary turning cylinder.
3. Manual pipe bender according to claim 1 and 2, is characterized in that, the left side wall of described U-type groove has the semicircle bend pipe locking slot of vertical through described latch segment front and back sides.
4. Manual pipe bender according to claim 2, is characterized in that, when described connector be " " type platy structure time, the connecting portion of described handle and described connector is positioned at the outside of the corner of described connector, and described handle stretches out along the radial direction of described bend pipe dish; When described connector be " " type structure time, the connecting portion of described handle and described connector is positioned at the end of described connector, and described handle stretches out along the radial direction of described bend pipe dish.
5. Manual pipe bender according to claim 1 and 2, is characterized in that, the periphery of institute's bend pipe dish is provided with angle index.
6. Manual pipe bender according to claim 1 or 2, is characterized in that, described fixed block for have certain thickness " " type structure, " " type structure or disc structure, described fixed block is provided with the through hole running through upper and lower bottom surface, to install described snib; Sheet projection is provided with, to install described buckle in the position that the bottom of described fixed block is corresponding with described through hole.
7. Manual pipe bender according to claim 6, is characterized in that, all has U-type groove in the end at described buckle two ends, and described buckle is flexibly connected with described projection by bearing pin, bolt or screw rod.
8. Manual pipe bender according to claim 2, is characterized in that, the material of described bend pipe dish, scratch diskette and latch segment is identical, and is stainless steel material.
CN201110364579.6A 2011-11-17 2011-11-17 Manual pipe bender Active CN102343385B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110364579.6A CN102343385B (en) 2011-11-17 2011-11-17 Manual pipe bender

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110364579.6A CN102343385B (en) 2011-11-17 2011-11-17 Manual pipe bender

Publications (2)

Publication Number Publication Date
CN102343385A CN102343385A (en) 2012-02-08
CN102343385B true CN102343385B (en) 2015-06-03

Family

ID=45542664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110364579.6A Active CN102343385B (en) 2011-11-17 2011-11-17 Manual pipe bender

Country Status (1)

Country Link
CN (1) CN102343385B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756024A (en) * 2012-07-27 2012-10-31 曹澍生 Multifunctional bending device
US9156075B2 (en) * 2013-01-25 2015-10-13 Irwin Industrial Tool Company Lever bender and related method of use
CN104249098A (en) * 2013-06-28 2014-12-31 中冶天工上海十三冶建设有限公司 Small-size manual pipe-stewing device
CN104646461B (en) * 2013-11-22 2016-11-16 上海微创电生理医疗科技有限公司 A kind of hand-held pipe bender
CN105834261A (en) * 2016-04-28 2016-08-10 黄斌 Hand-operated pipe bending device
CN106424349A (en) * 2016-08-26 2017-02-22 天津思为机器设备有限公司 Tool of manual rapid fire bending handle
CN110434204B (en) * 2019-07-10 2020-11-06 谢庆玲 Galvanized pipe bending machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US601403A (en) * 1898-03-29 Metal-bending machine
JPS5313784Y2 (en) * 1973-08-24 1978-04-13
CN2732377Y (en) * 2004-10-11 2005-10-12 赵通生 Pipe bender
US7143629B1 (en) * 2005-12-14 2006-12-05 Ching-Su Chiu Manual pipe bender

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354946A1 (en) * 1976-06-17 1978-01-13 Pk I INSTALLATION FOR THE TRANSPORT OF LOADS IN CONTAINERS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US601403A (en) * 1898-03-29 Metal-bending machine
JPS5313784Y2 (en) * 1973-08-24 1978-04-13
CN2732377Y (en) * 2004-10-11 2005-10-12 赵通生 Pipe bender
US7143629B1 (en) * 2005-12-14 2006-12-05 Ching-Su Chiu Manual pipe bender

Also Published As

Publication number Publication date
CN102343385A (en) 2012-02-08

Similar Documents

Publication Publication Date Title
CN102343385B (en) Manual pipe bender
US2578687A (en) Split ratchet socket wrench
US7959140B2 (en) Magnetic positioning device
EP2825495B1 (en) Clamp and trolley system
CN202110369U (en) Projector rack rotary head
ES2862138T3 (en) Brace assembly and fixing element to stiffen a suspension bar
KR101265857B1 (en) Clamp for architectural scaffold
CN209478063U (en) Spanner
CN205926710U (en) Hickey device
CN208168364U (en) A kind of chevron steel pipe strap for building
CN110158955A (en) A kind of fixed mechanism of building template
CN104096730A (en) Portable steel pipe bending device
CN202417000U (en) Door handle
CN104802771B (en) Car transferring device
US20120180606A1 (en) Plumbing tool
CN206780995U (en) Modified pipe bender for building intellectualization
CN207592678U (en) A kind of pile crown bar straightening tool
CN216801224U (en) Manual pipe bending tool
CN211437609U (en) Planet wheel labor-saving wire pipe bending machine
CN220483306U (en) Pipeline transportation handcart
CN201960497U (en) Special tool for installing coiling machine roller way motor bolt
CN207735384U (en) Instrument piping Portable pipe bender
CN210387341U (en) Manual reinforcing bar bending machine for building construction
CN210289097U (en) Fastening device for scaffold
CN210232829U (en) Multifunctional PE valve wrench

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant