CN207260943U - A kind of cat ladder - Google Patents
A kind of cat ladder Download PDFInfo
- Publication number
- CN207260943U CN207260943U CN201721214272.7U CN201721214272U CN207260943U CN 207260943 U CN207260943 U CN 207260943U CN 201721214272 U CN201721214272 U CN 201721214272U CN 207260943 U CN207260943 U CN 207260943U
- Authority
- CN
- China
- Prior art keywords
- fixed link
- connecting rod
- terraced body
- rod
- cat ladder
- 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
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Abstract
The utility model discloses a kind of cat ladder, including terraced body and the handrail being symmetricly set at left and right sides of terraced body, the handrail includes some fixed links that are vertical with terraced body and being fixedly connected, the supporting rod that can be slided along its length is arranged with the fixed link, the supporting rod includes gag lever post and fender rod, described gag lever post one end is located in fixed link and its end is with its anti-drop block separated with fixed link of prevention, described fender rod one end is rotatablely connected with gag lever post along terraced body width, the fender rod is equipped with it and the fixation kit for fixing the fender rod of terraced body both sides when vertical with fixed link is turned to terraced side in vivo；By the protective action of fender rod, during worker is by lower platform on cat ladder, worker back is contradicted with fender rod, prevents worker from occurring rubber sleeve or body is poured off cat ladder backward when foot is slided, raising uses security during cat ladder.
Description
Technical field
A kind of hydraulic climbing formwork crawling tool is the utility model is related to, more specifically, it relates to a kind of cat ladder.
Background technology
At present, building trade development is swift and violent, and building structure reaches its maturity, and skyscraper, high-rise building are also more and more,
Application for the hydraulic climbing formwork system of skyscraper is also more and more extensive.Hydraulic climbing formwork system mainly by supporting body, guide rail, climb
Mould bases body, hydraulic system, template system, operating platform, cat ladder etc. form.In Practical Project, hydraulic climbing formwork has multilayer operation
Platform, need between adjacent two layers platform a set of cat ladder come for worker up and down.
Patent announcement number is to disclose a kind of hydraulic climbing formwork in the Chinese patent of CN205012636U to be climbed with lightgage steel joist formula
Ladder, including cat ladder body, the top of the cat ladder body are equipped with hydraulic climbing formwork upper platform connection structure, the bottom of cat ladder body
Equipped with hydraulic climbing formwork lower platform connection structure, the cat ladder body include symmetrical two lightgage steel joists tilt curb girder and
Some lightgage steel joist crossbeams being fixedly connected between two lightgage steel joists inclination curb girders, two lightgage steel joists are tilted on curb girders
It is fixedly connected with symmetrical two cat ladder handrails；Its overall structure is relatively easy, low manufacture cost, and manufacture craft is simple.
But, however it remains problems with：Its gradient is larger when general cat ladder uses, and worker passes through lower platform on cat ladder
During, body is easily toppled over backward, if there is a situation where when rubber sleeve or foot cunning, worker easily drops from cat ladder, safety
Property is poor.
Utility model content
The purpose of this utility model is to provide a kind of cat ladder, by the protective action of fender rod, worker by cat ladder above and below
During platform, worker back and fender rod contradict, and prevent that body is toppled over backward when worker from occurring rubber sleeve or foot cunning
Drop cat ladder, improves security when using cat ladder.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of cat ladder, including terraced body and the handrail being symmetricly set at left and right sides of terraced body, the handrail with terraced body including hanging down
Some fixed links that are straight and being fixedly connected, are arranged with the supporting rod that can be slided along its length, the branch in the fixed link
Strut includes gag lever post and fender rod, and described gag lever post one end is located in fixed link and its end carries and prevents itself and fixed link point
From anti-drop block, described fender rod one end and gag lever post be rotatablely connected along terraced body width, the fender rod be equipped with its to
Terraced side in vivo turns to the fixation kit for fixing the fender rod of terraced body both sides when vertical with fixed link.
By using above-mentioned technical proposal, it is necessary to using during lower platform, pulling upwardly on the gag lever post in fixed link on cat ladder
And fender rod, when fender rod is completely disengaged with fixed link to terraced side in vivo turn to it is vertical with gag lever post after, spacing bar portion at this time
Divide and be still located in fixed link, fixed the fender rod of terraced body both sides by fixation kit, fender rod can not be to the external side of ladder at this time
Rotate, worker is using during lower platform, the guard circle surrounded by fender rod, gag lever post and the fixed link of terraced body both sides can on cat ladder
Protection is supported to worker, back props up fender rod when worker's body is toppled over backward, prevents in worker's crawling process due to hand
Sliding or foot cunning drops from cat ladder, and security performance is high；When transporting or cat ladder being stored in warehouse, the fixation of fixation kit is released,
By in gag lever post and fender rod insertion fixed link, convenient and efficient, the space that reduction cat ladder is occupied, is readily transported and pacifies
Dress.
Preferably, be fixed with the fender rod or gag lever post fender rod to it is terraced side turns to vertical with fixed link in vivo when
Limitation fender rod continues to the terraced limited block that side rotates in vivo.
By using above-mentioned technical proposal, fender rod to it is terraced side turns to vertical with fixed link in vivo when, limited block with
Gag lever post, which abuts, prevents fender rod from continuing to rotate to terraced side in vivo, easy to the fixation of first connecting rod and second connecting rod.
Preferably, the fixation kit includes the first connecting rod and second connecting rod set along terraced body length direction, and described the
One connecting rod is fixedly connected with all fender rods of terraced body side, and all fender rods of the second connecting rod and terraced body opposite side are fixed
Connect, the first locking part is provided with the first connecting rod, fender rod is provided with the second connecting rod and is rotated to terraced side in vivo
Coordinate, with sealed between first connecting rod and second connecting rod part or solution sealed the with the first locking part when vertical to fixed link
Two locking parts.
By using above-mentioned technical proposal, the fender rod of terraced body both sides is turned to terraced side in vivo vertical with fender rod
When, by the first locking part and the second locking part is sealed fixes first connecting rod and second connecting rod, so that fixed protection bar.
Preferably, first locking part includes several fixture blocks being arranged on along terraced body length direction on first connecting rod,
The fixture block and first connecting rod are slidably connected along terraced body length direction, second locking part include being arranged on second connecting rod and
Fender rod turns to the sliding slot being caught in fixed link when vertical for fixture block in second connecting rod, the sliding slot and fixture block to terraced side in vivo
Equivalent, the sliding slot bottom are vertically provided with the card slot for communicating therewith and being slided for fixture block along terraced body length direction.
By using above-mentioned technical proposal, the fender rod of terraced body both sides is turned to terraced side in vivo vertical with fender rod
When, fixture block is slipped into second connecting rod by sliding slot, after fixture block slides into slideable base, fixture block is downward along terraced body length direction
Slide into card slot and be clamped with it, so that first connecting rod and second connecting rod be fixed, fender rod cannot turn to terraced external side at this time
It is dynamic, it is convenient and efficient.
Preferably, the slide bar for being fixedly connected with all fixture blocks, institute are provided with the first connecting rod along terraced body length direction
State and fender rod is provided with second connecting rod the groove for encompassing slide bar when vertical with fixed link, the groove are turned to terraced side in vivo
Connected with all card slots, the fender rod to it is terraced side turns to vertical with fixed link in vivo when the slide bar be located in groove
And it will be slided along terraced body length direction.
By using above-mentioned technical proposal, first the fender rod of second connecting rod side is turned to terraced side in vivo and is hung down with gag lever post
After straight, first connecting rod side fender rod is turned to terraced side in vivo vertical with gag lever post, fixture block is caught in sliding slot at this time, sliding at the same time
Bar is encompassed by groove, by pulling slide bar slide downward to drive all fixture blocks to be caught in card slot along terraced body length direction slide downward
In, so that first connecting rod and second connecting rod are fixed, it is easy to operate, it is time saving and energy saving.
Preferably, the bolt for fixing it with second connecting rod is provided with the slide bar.
By using above-mentioned technical proposal, after fixture block is caught in card slot, slide bar and second connecting rod are fixed by bolt, prevented
Slide bar is artificially touched during cat ladder use makes slide bar upward sliding, so as to drive fixture block upward sliding and exact separation.
Preferably, fender rod is fixed with the gag lever post its consolidating to terraced external side rotation is limited when parallel with fixed link
Determine block.
By using above-mentioned technical proposal, it is not necessary to during using cat ladder, when fender rod is turned to parallel with fixed link, prevent
Guard bar is abutted with fixed block, convenient and efficient easy to be stored in fender rod and gag lever post insertion fixed link.
Preferably, the gag lever post sidepiece is equipped with threaded hole, and the screw being threadedly coupled with it, institute are set in the threaded hole
State and the first through hole being inserted into for screw corresponding with threaded hole when fender rod is located in fixed link is provided with fixed link.
By using above-mentioned technical proposal, first through hole is inserted into by screw and is threadedly coupled with threaded hole, prevents cat ladder from depositing
Put and skidded off with gag lever post in transportational process with supporting rod from fixed link, avoid gag lever post and supporting rod in storage and transportational process
Damage.
Preferably, it is corresponding so that screw is inserted with threaded hole when the fixed link is completely disengaged equipped with fender rod with fixed link
The second through hole entered.
By using above-mentioned technical proposal, the second through hole is inserted into by screw and is threadedly coupled with threaded hole, using on cat ladder
Supporting rod and fixed link are fixed during lower platform, so that more preferable supporting role is played to fender rod, enhancing protection energy
Power.
In conclusion the utility model has the advantages that：
When the 1st, using cat ladder, good protective action is played by fender rod, prevents that worker from dropping cat ladder, it is safe；
2nd, fixed protection bar is coordinated by fixture block and card slot, it is convenient and efficient；
3rd, drive all fixture blocks to slide by slide bar and be caught in card slot, so that fixed protection bar, easy to operate；
When the 4th, transporting or cat ladder need not be used, fender rod and gag lever post are inserted into fixed link, easy to the transport of cat ladder
And storage.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present embodiment；
Fig. 2 is the structure diagram of fixation kit in the present embodiment；
Fig. 3 is enlarged diagram at A in Fig. 2；
Fig. 4 is fixed link and the attachment structure schematic diagram of gag lever post and fender rod in the present embodiment.
Reference numeral：1st, terraced body；2nd, handrail；3rd, fixed link；4th, supporting rod；41st, gag lever post；42nd, fender rod；5th, fixed group
Part；51st, first connecting rod；52nd, second connecting rod；53rd, the first locking part；531st, fixture block；54th, the second locking part；541st, sliding slot；542、
Card slot；6th, slide bar；7th, groove；8th, bolt；9th, limited block；10th, fixed block；11st, anti-drop block；12nd, threaded hole；13rd, screw；
14th, first through hole；15th, the second through hole.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of cat ladder, as shown in Figure 1, including the terraced body 1 being arranged between upper platform and lower platform, terraced body 1 or so
Both sides are symmetrically arranged with handrail 2, and handrail 2 includes 5 fixed links 3 that are vertical with terraced body 1 and being fixedly connected；People pass through on stair
It can be supported during lower platform by handrail 2.
Supporting rod 4 is slidably connected in fixed link 3 along its length, supporting rod 4 includes gag lever post 41 and fender rod 42,
41 lower part of gag lever post is located in fixed link 3, and 42 one end of fender rod is rotatablely connected with 41 top of gag lever post along terraced 1 width of body,
Fender rod 42, which is equipped when it turns to vertical with fixed link 3 to the inner side of terraced body 1, to be consolidated what the fender rod 42 of terraced 1 both sides of body was fixed
Determine component 5；When needing to use lower platform on cat ladder, the gag lever post 41 and fender rod 42 in fixed link 3, fender rod 42 are pulled upwardly on
When being completely disengaged with fixed link 3 to the inner side of terraced body 1 turn to it is vertical with gag lever post 41 after, 41 part of gag lever post is still located at consolidating at this time
In fixed pole 3, the fender rod 42 of terraced 1 both sides of body is fixed by fixation kit 5, fender rod 42 can not turn to the terraced outside of body 1 at this time
Dynamic, worker uses protection during lower platform, surrounded on cat ladder by fender rod 42, gag lever post 41 and the fixed link 3 of terraced 1 both sides of body
Circle can be supported worker protection, and back props up fender rod 42 when worker's body is toppled over backward, prevents in worker's crawling process
Since rubber sleeve or foot cunning drop from cat ladder, security performance is high；When transporting or cat ladder being stored in warehouse, fixation kit 5 is released
Fixation, gag lever post 41 and fender rod 42 are inserted into fixed link 3, it is convenient and efficient, reduce the space occupied of cat ladder, just
In transport.
As shown in Figures 2 and 3, fixation kit 5 includes setting along terraced 1 length direction of body and prevents with terraced all of the right side of body 1
The first connecting rod 51 that guard bar 42 is fixedly connected, the terraced left side of body 1 are provided with all fender rods 42 with left side along terraced 1 length direction of body
The second connecting rod 52 being fixedly connected, is provided with the first locking part 53 on first connecting rod 51, fender rod is provided with second connecting rod 52
42 coordinate, with first connecting rod 51 and second connecting rod with the first locking part 53 when turning to vertical with fixed link 3 to the inner side of terraced body 1
Sealed or sealed the second locking part 54 of solution between 52.
5 fixture blocks 531 that first locking part 53 includes being arranged on first connecting rod 51 and arranged along terraced 1 length direction of body,
Fixture block 531 is plugged on the one end of first connecting rod 51 away from fixed link 3 and it can be slidably connected along terraced 1 length direction of body, and second
Card is supplied when locking part 54 includes being arranged on second connecting rod 52 and fender rod 42 turns to vertical with fixed link 3 to the terraced inner side of body 1
Block 531 is caught in the sliding slot 541 in second connecting rod 52, sliding slot 541 and 531 equivalent of fixture block, and 541 bottom of sliding slot is along terraced 1 length side of body
Communicated therewith and for the card slot 542 of the slip of fixture block 531 to being vertically provided with；By the fender rod 42 of terraced 1 both sides of body into terraced body 1
When side turns to vertical with fender rod 42, fixture block 531 is slipped into second connecting rod 52 by sliding slot 541, and fixture block 531 slides into slip
Behind bottom, fixture block 531 is slid down in card slot 542 along terraced 1 length direction of body and is clamped with it, so that by first connecting rod 51
Fixed with second connecting rod 52, fender rod 42 cannot be rotated to the terraced outside of body 1 at this time, convenient and efficient.
The slide bar 6 for being fixedly connected with all fixture blocks 531 is provided with first connecting rod 51 along terraced 1 length direction of body, second connects
Be provided with the groove 7 that slide bar 6 is encompassed when fender rod 42 turns to vertical with fixed link 3 to the inner side of terraced body 1 on bar 52, groove 7 with
All card slots 542 connect, fender rod 42 to the inner side of terraced body 1 turn to vertical with fixed link 3 when slide bar 6 be located in groove 7 and general
Slided along 1 length direction of terraced body；First the fender rod 42 of 52 side of second connecting rod is turned to the terraced inner side of body 1 vertical with gag lever post 41
Afterwards, 51 side fender rod 42 of first connecting rod is turned to the inner side of terraced body 1 vertical with gag lever post 41, fixture block 531 is caught in sliding slot at this time
In 541, while slide bar 6 is encompassed by groove 7, by pulling 6 slide downward of slide bar to drive all fixture blocks 531 along terraced 1 length of body
Direction slide downward is caught in card slot 542, so that first connecting rod 51 and second connecting rod 52 are fixed, it is easy to operate, it is time saving and energy saving.
The bolt 8 for fixing it with second connecting rod 52 is provided with slide bar 6；After fixture block 531 is caught in card slot 542, pass through spiral shell
Bolt 8 fixes slide bar 6 and second connecting rod 52, prevent from artificially touching during cat ladder use slide bar 6 make 6 upward sliding of slide bar,
So as to drive 531 upward sliding of fixture block to be separated with card slot 542.
Turned to as shown in figure 4, being fixed with fender rod 42 on fender rod 42 or gag lever post 41 to the inner side of terraced body 1 and fixed link
3 limit the limited block 9 that fender rod 42 continues to rotate to the terraced inner side of body 1 when vertical；Fender rod 42 to the inner side of terraced body 1 turn to
When fixed link 3 is vertical, limited block 9 is abutted with gag lever post 41 prevents fender rod 42 from continuing to rotate to the terraced inner side of body 1, easy to first
The fixation of connecting rod 51 and second connecting rod 52.
Be fixed with gag lever post 41 fender rod 42 it is parallel with fixed link 3 when limit its fixed block rotated to the outside of terraced body 1
10；When need not use cat ladder, when fender rod 42 is turned to parallel with fixed link 3, fender rod 42 is abutted with fixed block 10, just
Stored in fender rod 42 and gag lever post 41 are inserted into fixed link 3, it is convenient and efficient.
41 one end of gag lever post is located in fixed link 3 and its end is with its anti-drop block 11 separated with fixed link 3 of prevention；It is anti-
Gag lever post 41 is separated with fixed link 3 when only pulling out gag lever post 41 and fender rod 42.
41 sidepiece of gag lever post is equipped with threaded hole 12, sets the screw 13 being threadedly coupled with it in threaded hole 12, in fixed link 3
It is provided with the first through hole 14 being inserted into for screw 13 corresponding with threaded hole 12 and protection when fender rod 42 is located in fixed link 3
It is corresponding for the second through hole 15 of the insertion of screw 13 with threaded hole 12 when bar 42 is completely disengaged with fixed link 3；Inserted by screw 13
Enter first through hole 14 to be threadedly coupled with threaded hole 12, prevent that gag lever post 41 and supporting rod 4 are from admittedly in cat ladder storage and transportational process
Skidded off in fixed pole 3, avoid gag lever post 41 and supporting rod 4 in storage and transportational process from damaging；Second through hole is inserted into by screw 13
15 are threadedly coupled with threaded hole 12, fix supporting rod 4 and fixed link 3 during using lower platform on cat ladder, so as to anti-
Guard bar 42 plays more preferable supporting role, strengthens protective capacities.
Specific work process：Cat ladder is inserted into fixed link 3 during transport and storage, by fender rod 42 and gag lever post 41
In, and be threadedly coupled by screw 13 with insertion first through hole 14 with threaded hole 12, so that fixed gag lever post 41 and fender rod 42.
When needing to use cat ladder, back-out screw 13, pull up out gag lever post 41 and fender rod 42, pass through the insertion of screw 13 the
Two through holes 15 are threadedly coupled with threaded hole 12, so that fixed gag lever post 41, first by the fender rod 42 of 52 side of second connecting rod to terraced body 1
Inner side turn to it is vertical with gag lever post 41 after, 51 side fender rod 42 of first connecting rod is turned to and gag lever post 41 to the inner side of terraced body 1
Vertically, fixture block 531 is caught in sliding slot 541 at this time, while slide bar 6 is encompassed by groove 7, by pulling 6 slide downward of slide bar to drive
All fixture blocks 531 are caught in card slot 542 along terraced 1 length direction slide downward of body, so that by first connecting rod 51 and second connecting rod
After 52 fix, slide bar 6 and second connecting rod 52 are fixed by bolt 8, it is convenient and efficient.
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (9)
1. a kind of cat ladder, including terraced body (1) and the handrail (2) that is symmetricly set at left and right sides of terraced body (1), it is characterized in that：It is described
Handrail (2) includes and some fixed links (3) that are fixedly connected vertical with terraced body (1), in the fixed link (3) along its length
Supporting rod (4) is slidably connected, the supporting rod (4) includes gag lever post (41) and fender rod (42), the gag lever post (41) one
End is in fixed link (3) and its end is with its anti-drop block (11) separated with fixed link (3) of prevention, the fender rod (42)
One end is rotatablely connected with gag lever post (41) along terraced body (1) width, and the fender rod (42) is equipped with it to terraced body (1) inner side
The fixation kit (5) for fixing the fender rod (42) of terraced body (1) both sides when turning to vertical with fixed link (3).
2. a kind of cat ladder according to claim 1, it is characterized in that：It is fixed with the fender rod (42) or gag lever post (41)
Fender rod (42) limits fender rod (42) when turning to vertical with fixed link (3) to terraced body (1) inner side to be continued on the inside of terraced body (1)
The limited block (9) of rotation.
3. a kind of cat ladder according to claim 1 or 2, it is characterized in that：The fixation kit (5) includes long along terraced body (1)
First connecting rod (51) and second connecting rod (52) that direction is set are spent, the first connecting rod (51) is all anti-with terraced body (1) side
Guard bar (42) is fixedly connected, and the second connecting rod (52) is fixedly connected with all fender rods (42) of terraced body (1) opposite side, described
The first locking part (53) is provided with first connecting rod (51), fender rod (42) is provided with the second connecting rod (52) to terraced body
(1) coordinate, with first connecting rod (51) and second connecting rod with the first locking part (53) when inner side turns to vertical with fixed link (3)
(52) the second locking part (54) sealed between part or that solution is sealed.
4. a kind of cat ladder according to claim 3, it is characterized in that：First locking part (53) includes being arranged on the first company
Several fixture blocks (531) on bar (51), the fixture block (531) is slided with first connecting rod (51) along terraced body (1) length direction to be connected
Connect, second locking part (54) includes being arranged on second connecting rod (52) and fender rod (42) is turned to terraced body (1) inner side
Fixture block (531) is supplied to be caught in the sliding slot (541) in second connecting rod (52), the sliding slot (541) and fixture block when vertical with fixed link (3)
(531) equivalent, sliding slot (541) bottom is vertically provided with along terraced body (1) length direction to be communicated therewith and is slided for fixture block (531)
Dynamic card slot (542).
5. a kind of cat ladder according to claim 4, it is characterized in that：Along terraced body (1) length side on the first connecting rod (51)
To the slide bar (6) that is fixedly connected with all fixture blocks (531) is provided with, be provided with the second connecting rod (52) fender rod (42) to
Encompass the groove (7) of slide bar (6) when turning to vertical with fixed link (3) on the inside of terraced body (1), the groove (7) with it is all described
Card slot (542) connects.
6. a kind of cat ladder according to claim 5, it is characterized in that：It is provided with the slide bar (6) by itself and second connecting rod
(52) fixed bolt (8).
7. a kind of cat ladder according to claim 1, it is characterized in that：Be fixed with the gag lever post (41) fender rod (42) with
Fixed link (3) limits it to the fixed block (10) of rotation on the outside of terraced body (1) when parallel.
8. a kind of cat ladder according to claim 1 or 7, it is characterized in that：Gag lever post (41) sidepiece is equipped with threaded hole
(12), the screw (13) being threadedly coupled with it is set in threaded hole (12), fender rod is provided with the fixed link (3)
(42) it is corresponding with threaded hole (12) for the first through hole (14) of screw (13) insertion when being located in fixed link (3).
9. a kind of cat ladder according to claim 8, it is characterized in that：The fixed link (3) is equipped with fender rod (42) and admittedly
It is corresponding with threaded hole (12) for the second through hole (15) of screw (13) insertion when fixed pole (3) completely disengages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214272.7U CN207260943U (en) | 2017-09-20 | 2017-09-20 | A kind of cat ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214272.7U CN207260943U (en) | 2017-09-20 | 2017-09-20 | A kind of cat ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207260943U true CN207260943U (en) | 2018-04-20 |
Family
ID=61918110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721214272.7U Expired - Fee Related CN207260943U (en) | 2017-09-20 | 2017-09-20 | A kind of cat ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207260943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019374A (en) * | 2018-10-14 | 2018-12-18 | 张家港市天运建筑机械有限公司 | A kind of collapsible climbing device for derrick crane |
-
2017
- 2017-09-20 CN CN201721214272.7U patent/CN207260943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019374A (en) * | 2018-10-14 | 2018-12-18 | 张家港市天运建筑机械有限公司 | A kind of collapsible climbing device for derrick crane |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20190920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |