CN109552992A - A kind of synchronization lifting telescopic device for crane - Google Patents
A kind of synchronization lifting telescopic device for crane Download PDFInfo
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- CN109552992A CN109552992A CN201910104252.1A CN201910104252A CN109552992A CN 109552992 A CN109552992 A CN 109552992A CN 201910104252 A CN201910104252 A CN 201910104252A CN 109552992 A CN109552992 A CN 109552992A
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- expansion bracket
- section expansion
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- segment
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 14
- 230000003028 elevating effect Effects 0.000 abstract description 5
- 230000033764 rhythmic process Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of synchronization lifting telescopic devices for crane, including first segment expansion bracket, the second section expansion bracket, third section expansion bracket, upper synchronization steering mechanism and lower synchronous guiding mechanism, upper synchronization steering mechanism includes synchronization steering component on two groups, upper synchronization steering component includes the upper directive wheel and upper synchronous piece set on the second section expansion bracket top, upper synchronous piece one end connects first segment expansion bracket, and the other end connects third section expansion bracket；Lower synchronous guiding mechanism includes synchronous guidance set under two groups, and lower synchronous guidance set includes the lower directive wheel and lower synchronous piece set on the second section expansion bracket lower part, and lower synchronous piece one end connects first segment expansion bracket, and the other end connects third section expansion bracket.Synchronization lifting telescopic device provided by the invention, when carrying out elevating movement, each structure motion is synchronized unanimously, stable, smooth, no shaking, pause and transition in rhythm or melody or unexpected the phenomenon that landing, is finally reached flexible purpose.
Description
Technical field
The present invention relates to crane field more particularly to a kind of synchronization lifting telescopic devices for crane.
Background technique
Currently, being applied to the Telescopic rod structure on crane, due to the limitation of structure, there are idler wheels and guide clearance mistake
Greatly or the problem of guide rail injustice, therefore, each section telescopic bar movement is asynchronous when causing to go up and down, steel construction shake it is severe,
Phenomena such as pause and transition in rhythm or melody or suddenly landing, very big influence is brought to the normal use of crane.
Summary of the invention
In view of the above deficiencies, the purpose of the present invention is to provide a kind of synchronization lifting telescopic device for crane,
When carrying out elevating movement, each structure motion absolute synchronization is consistent, stable, smooth, no shaking, pause and transition in rhythm or melody or lands suddenly
Phenomenon occurs, and is finally reached flexible purpose.
The technical scheme adopted by the invention to achieve the purpose is as follows:
A kind of synchronization lifting telescopic device for crane, which is characterized in that set including at least a first segment expansion bracket, sliding
One second section expansion bracket being placed on the inside of first segment expansion bracket, the third section being slideably positioned on the inside of the second section expansion bracket stretch
Frame is set on the second section expansion bracket and is respectively connected to synchronization steering machine on first segment expansion bracket and the one of third section expansion bracket
Structure and the synchronization steering once for being set on the second section expansion bracket and being respectively connected to first segment expansion bracket Yu third section expansion bracket
Mechanism, wherein the upper synchronization steering mechanism includes synchronization steering component on two groups be relatively arranged on the second section expansion bracket,
On this synchronization steering component include on be set to the second section expansion bracket top one directive wheel and be located on directive wheel one
Upper synchronous piece, synchronous piece one end is connected to first segment expansion bracket on this, and the other end is connected to third section expansion bracket；The lower synchronization
Guiding mechanism include under be relatively arranged on the second section expansion bracket two groups synchronous guidance set, the lower synchronous guidance set include
The synchronous piece once for being set to the directive wheel once of the second section expansion bracket lower part and being located on lower directive wheel, the lower synchronous piece
One end is connected to first segment expansion bracket, and the other end is connected to third section expansion bracket.
As a further improvement of the present invention, the first segment expansion bracket, the second section expansion bracket and third section expansion bracket are equal
For square frame structure, which is protruded into first segment expansion bracket by first segment expansion bracket lower end, which stretches
Contracting frame is protruded into the second section expansion bracket by the second section expansion bracket lower end.
As a further improvement of the present invention, it is provided on the first segment expansion bracket lower inside side and is stretched for the second section
Several first roller groups that contracting frame outer side edges slide, meanwhile, it is provided on the second section expansion bracket lower inside side for
Several second roller groups that three section expansion bracket outer side edges slide.
As a further improvement of the present invention, at each right angle corner on the inside of the first segment expansion bracket on be respectively provided with
First roller group described in having two groups, two group of first roller group are distributed setting up and down；It is every on the inside of the second section expansion bracket
Second roller group described in being provided with two groups in one right angle corner, two group of second roller group are distributed setting up and down.
As a further improvement of the present invention, first roller group is mainly by being set to first segment expansion bracket inside corner
One on one first upper roller and another right-angle side for being set at first segment expansion bracket inside corner on one right-angle side at place
Second upper roller composition, wherein first upper roller fits with the right-angle side at the second section expansion bracket external corners, this
Two upper rollers fit with another right-angle side at the second section expansion bracket external corners；Second roller group is mainly by being set to
One first bottom roller on a right-angle side at second section expansion bracket inside corner and it is set to the second section expansion bracket corner
One second bottom roller composition on another right-angle side, wherein one at first bottom roller and third section expansion bracket external corners
Right-angle side fits, which fits with another right-angle side at third section expansion bracket external corners.
As a further improvement of the present invention, it is respectively arranged on the opposite two sides in first segment expansion bracket lower part
Link block on one first is respectively arranged with one first lower connecting block on the opposite two sides in the third section expansion bracket top,
Described upper synchronous piece one end is connect with link block on first, and the other end is connect with the first lower connecting block；It is flexible in the first segment
It is respectively arranged with link block on one second on the opposite other two sides in frame lower part, is connected on described lower synchronous piece one end and second
Block connection, the other end are connect with the upper end of third section expansion bracket.
As a further improvement of the present invention, on described second the position of link block than first on link block position it is high,
The position of first lower connecting block is set low than the upper-end part of driving of third section expansion bracket.
As a further improvement of the present invention, the part in the inner side edge of link block on link block and second on described first
It is not convexly equipped with interconnecting piece on one, projection is distinguished in the middle part of the outer side edges of first lower connecting block Yu third section expansion bracket upper end
There is interconnecting piece.
As a further improvement of the present invention, the upper directive wheel is set on the upper end of the second section expansion bracket；Institute
It states and is respectively arranged with a mounting blocks on the opposite two sides in the second section expansion bracket lower part, the lower directive wheel is set to mounting blocks
On.
As a further improvement of the present invention, the upper synchronous piece is synchronous rope or synchronization chain, the lower synchronous piece are
Synchronous rope or synchronization chain.
The invention has the benefit that carrying out the upper synchronization steering mechanism of special connection under with each expansion bracket by adding
Synchronization steering mechanism is stretched by combining with the upper synchronization steering mechanism that special construction designs with lower synchronous guiding mechanism by several
Contracting frame is connected in one, when carrying out elevating movement, it is ensured that the movement absolute synchronization of each expansion bracket is consistent, and each structure operation is steady
It is fixed, smooth, no shaking, pause and transition in rhythm or melody or unexpected the phenomenon that landing, it is finally reached flexible purpose.
Above-mentioned is the general introduction of inventive technique scheme, below in conjunction with attached drawing and specific embodiment, is done further to the present invention
Explanation.
Detailed description of the invention
Fig. 1 is a side structural schematic diagram of the invention；
Fig. 2 is another side structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of first segment expansion bracket of the present invention；
Fig. 4 is the structural schematic diagram of the second section expansion bracket of the invention；
Fig. 5 is the structural schematic diagram of third section expansion bracket of the present invention.
Specific embodiment
Further to illustrate the present invention to reach the technical means and efficacy that predetermined purpose is taken, below in conjunction with attached drawing
And preferred embodiment, detailed description of specific embodiments of the present invention.
Fig. 1 and Fig. 2 are please referred to, the embodiment of the present invention provides a kind of synchronization lifting telescopic device for crane, at least
Including a first segment expansion bracket 1, the one second section expansion bracket 2 that is slideably positioned in the inside of first segment expansion bracket 1, it is slideably positioned in the
One third section expansion bracket 3 of two section expansion brackets, 2 inside is set on the second section expansion bracket 2 and is respectively connected to first segment and stretches
It synchronization steering mechanism 4 and is set on the second section expansion bracket 2 on the one of frame 1 and third section expansion bracket 3 and is respectively connected to first
Save the mechanism of synchronization steering once 5 of expansion bracket 1 and third section expansion bracket 3.
Specifically, as shown in Figure 1, the upper synchronization steering mechanism 4 includes two be relatively arranged on the second section expansion bracket 2
Synchronization steering component 41 in group, synchronization steering component 41 includes directive wheel on be set to 2 top of the second section expansion bracket one on this
411 and be located on directive wheel 411 one on synchronous piece 412,412 one end of synchronous piece is connected to first segment expansion bracket on this
1, the other end is connected to third section expansion bracket 3.Simultaneously, it should be noted that the structure phase of synchronization steering component 41 on this two groups
Together.And for upper synchronous piece 412, it can be the strip structures such as synchronous rope or synchronization chain, synchronization steering component 41 on this two groups
In 412 equal length of upper synchronous piece.
Meanwhile as shown in Fig. 2, the lower synchronous guiding mechanism 5 includes two groups be relatively arranged on the second section expansion bracket 2
Lower synchronous guidance set 51, the lower synchronous guidance set 51 include the directive wheel once for being set to 2 lower part of the second section expansion bracket
511 and synchronous piece 512 once that are located on lower directive wheel 511, which is connected to first segment expansion bracket
1, the other end is connected to third section expansion bracket 3.Simultaneously, it should be noted that the structure phase of synchronous guidance set 51 under this two groups
Together.And for lower synchronous piece 512, it can be the strip structures such as synchronous rope or synchronization chain, synchronous guidance set 51 under this two groups
In 512 equal length of lower synchronous piece.
In stationary state, upper synchronous piece 412 and lower synchronous piece 512 are in tension, and when hoist crane (or volume
Raise machine) driving third section expansion bracket 3 when rising on the inside of the second section expansion bracket 2, is connected to the upper synchronization of third section expansion bracket 3
One end of part 412 shortens, correspondingly, the one end for being connected to the upper synchronous piece 412 of first segment expansion bracket 1 is elongated；Simultaneously,
Three section expansion brackets 3 pull up lower synchronous piece 512, so that the one end for being connected to the lower synchronous piece 512 of third section expansion bracket 3 becomes
It is long, correspondingly, the one end for being connected to the lower synchronous piece 512 of first segment expansion bracket 1 shortens, and first segment expansion bracket 1 is pulled downward on,
So that first segment expansion bracket 1 declines along 2 periphery of the second section expansion bracket；In the process, first segment expansion bracket 1 is stretched with third section
3 synchronizing moving of contracting frame, and the height that first segment expansion bracket 1 declines is equal to the height that third section expansion bracket 3 rises, and reaches as a result,
It shortens to synchronization lifting telescopic device entire length, that is, the purpose shunk.
Correspondingly, when hoist crane (or hoist engine) driving third section expansion bracket 3 declines on the inside of the second section expansion bracket 2
When, the second section expansion bracket 2 pulls downward on synchronous piece 412, then is connected to one end of the upper synchronous piece 412 of third section expansion bracket 3
Elongated, correspondingly, the one end for being connected to the upper synchronous piece 412 of first segment expansion bracket 1 shortens, i.e., upper synchronous piece 412 pulls up
First segment expansion bracket 1, so that first segment expansion bracket 1 rises along 2 periphery of the second section expansion bracket；Simultaneously, it is connected to third
The one end for saving the lower synchronous piece 512 of expansion bracket 3 shortens, correspondingly, being connected to the one of the lower synchronous piece 512 of first segment expansion bracket 1
It holds elongated；In the process, first segment expansion bracket 1 and 3 synchronizing moving of third section expansion bracket, and first segment expansion bracket 1 rises
Height be equal to the height that third section expansion bracket 3 declines, it is elongated to reach synchronization lifting telescopic device entire length as a result, that is, stretches
Long purpose.
In the present embodiment, the first segment expansion bracket 1, the second section expansion bracket 2 and third section expansion bracket 3 are square box
Frame structure, the second section expansion bracket 2 are protruded into first segment expansion bracket 1 by 1 lower end of first segment expansion bracket, the third section expansion bracket 3
It is protruded into the second section expansion bracket 2 by 2 lower end of the second section expansion bracket.By first segment expansion bracket 1, the second section expansion bracket 2 and third section
3 three of expansion bracket combines, the telescopic device for forming variable length, shortening, it is, of course, also possible to according to specific needs, increase several
Expansion bracket, formation is extending to arrive greater length of telescopic device structure, meets greater demand.
In the present embodiment, for the ease of first segment expansion bracket 1, the second section expansion bracket 2 and 3 three of third section expansion bracket it
Between move up and down more smooth, and can be always along linear movement, without generating tilt phenomenon, the present embodiment is in the first segment
Several first roller groups 6 slided for 2 outer side edges of the second section expansion bracket are provided on 1 lower inside side of expansion bracket, meanwhile, in institute
State several second roller groups 7 for being provided on 2 lower inside side of the second section expansion bracket and sliding for 3 outer side edges of third section expansion bracket.
Specifically, first described in being provided with two groups at each right angle corner of 1 inside of the first segment expansion bracket
Roller group 6, about 6 two group of first roller group distribution setting；At each right angle corner of 2 inside of the second section expansion bracket
On be provided with two groups described in the second roller group 7, about 7 two group of second roller group distribution setting.
Specifically, as shown in figure 3, first roller group 6 is mainly by being set to 1 inside corner of first segment expansion bracket
One first upper roller 61 on one right-angle side and one on another right-angle side being set at 1 inside corner of first segment expansion bracket
Second upper roller 62 composition, wherein first upper roller 61 is affixed with the right-angle side at 2 external corners of the second section expansion bracket
It closes, which fits with another right-angle side at 2 external corners of the second section expansion bracket.It can make the second section as a result,
2 outer side edges of expansion bracket the first roller group of multiple groups 6 the first upper roller 61 under the drive that the second upper roller 62 combines, along
Make straight line elevating movement on the inside of first segment expansion bracket 1, and movement is smooth.
Correspondingly, as shown in figure 4, second roller group 7 is mainly by being set to 2 inside corner of the second section expansion bracket
One first bottom roller 71 on one right-angle side and be set on another right-angle side of 2 corner of the second section expansion bracket one second
Bottom roller 72 forms, wherein first bottom roller 41 fits with the right-angle side at 3 external corners of third section expansion bracket, should
Second bottom roller 72 fits with another right-angle side at 3 external corners of third section expansion bracket.It can make third section expansion bracket as a result,
3 outer side edges the second roller group of multiple groups 7 the first bottom roller 71 under the drive that the second bottom roller 72 combines, along the second section
Make straight line elevating movement on the inside of expansion bracket 2, and movement is smooth.
In the present embodiment, as shown in Fig. 3 and Fig. 5, for the specific connection type of upper synchronous piece 412, the present embodiment exists
1 lower part of first segment expansion bracket is respectively arranged with link block 11 on one first on opposite two sides, stretches in the third section
One first lower connecting block 31 is respectively arranged on the opposite two sides in 3 top of contracting frame, on described upper 412 one end of synchronous piece and first
Link block 11 connects, and the other end is connect with the first lower connecting block 31.Meanwhile for the specific connection type of lower synchronous piece 512, originally
Embodiment is respectively arranged with link block 12 on one second, institute on the opposite other two sides in 1 lower part of first segment expansion bracket
It states lower 512 one end of synchronous piece to connect with link block 12 on second, the other end is connect with the upper end of third section expansion bracket 3.As a result,
It is combined by upper synchronous piece 412 with lower synchronous piece 512, plays and drive first segment expansion bracket 1 is synchronous with 3 work of third section expansion bracket to rise
The purpose of movement drops.
Meanwhile in order to keep stretching motion more accurate, on the present embodiment second position of link block 12 than first on link block
11 position is high, and the position of first lower connecting block 31 is set low than the upper-end part of driving of third section expansion bracket 3.
Meanwhile for the connection more convenient for upper synchronous piece 412 and lower 512 both ends of synchronous piece, as shown in Fig. 3 and Fig. 5,
The present embodiment is convexly equipped with interconnecting piece on one respectively on described first in the middle part of the inner side edge of link block 12 on link block 11 and second
(111,121) are convexly equipped with respectively in the middle part of the outer side edges of first lower connecting block 31 and 3 upper end of third section expansion bracket
Interconnecting piece (311,32).Specifically, one end of upper synchronous piece 412 is connected to the upper interconnecting piece 111 of link block 11 on first, it is another
End is connected to the lower interconnecting piece 311 of the first lower connecting block 31；One end of lower synchronous piece 512 is connected to the upper of link block 12 on second
Interconnecting piece 121, the other end are connected to the lower interconnecting piece 32 of 3 upper end of third section expansion bracket.
In the present embodiment, for the ease of the installation of upper directive wheel 411 and lower directive wheel 511, and upper directive wheel 411 is played
With the guiding role of lower directive wheel 511, directive wheel 411 is set on the upper end of the second section expansion bracket 2 on the present embodiment；Together
When, a mounting blocks 21, the lower directive wheel 511 are respectively arranged on the opposite two sides in 2 lower parts of the second section expansion bracket
It is set on mounting blocks 21.
The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention,
Therefore technical characteristic same as or similar to the above embodiments of the present invention is used, and obtained other structures, in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of synchronization lifting telescopic device for crane, which is characterized in that include at least a first segment expansion bracket, sliding
It is set to one second section expansion bracket on the inside of first segment expansion bracket, the third section being slideably positioned on the inside of the second section expansion bracket is stretched
Contracting frame is set on the second section expansion bracket and is respectively connected to synchronization steering on first segment expansion bracket and the one of third section expansion bracket
Mechanism and be set on the second section expansion bracket and be respectively connected to first segment expansion bracket and third section expansion bracket once synchronize lead
To mechanism, wherein the upper synchronization steering mechanism includes synchronization steering group on two groups be relatively arranged on the second section expansion bracket
Part, synchronization steering component includes directive wheel and being located on directive wheel on be set to the second section expansion bracket top one on this
One on synchronous piece, synchronous piece one end is connected to first segment expansion bracket on this, and the other end is connected to third section expansion bracket；Under described
Synchronization steering mechanism includes synchronous guidance set, lower synchronous guidance set under be relatively arranged on the second section expansion bracket two groups
Including the synchronous piece once for being set to the directive wheel once of the second section expansion bracket lower part and being located on lower directive wheel, this is similarly hereinafter
Step part one end is connected to first segment expansion bracket, and the other end is connected to third section expansion bracket.
2. the synchronization lifting telescopic device according to claim 1 for crane, which is characterized in that the first segment is stretched
Contracting frame, the second section expansion bracket and third section expansion bracket are square frame structure, and the second section expansion bracket is by first segment expansion bracket
Lower end is protruded into first segment expansion bracket, which is protruded into the second section expansion bracket by the second section expansion bracket lower end.
3. the synchronization lifting telescopic device according to claim 2 for crane, which is characterized in that in the first segment
Several first roller groups slided for the second section expansion bracket outer side edges are provided on expansion bracket lower inside side, meanwhile, described
Several second roller groups slided for third section expansion bracket outer side edges are provided on second section expansion bracket lower inside side.
4. the synchronization lifting telescopic device according to claim 3 for crane, which is characterized in that in the first segment
First roller group described in being provided with two groups at each right angle corner on the inside of expansion bracket, two group of first roller group are divided up and down
Cloth setting；Second roller group described in being provided with two groups at each right angle corner on the inside of the second section expansion bracket, should
Two group of second roller group is distributed setting up and down.
5. the synchronization lifting telescopic device according to claim 4 for crane, which is characterized in that first idler wheel
It organizes one first upper roller on the mainly right-angle side by being set to first segment expansion bracket inside corner and is set to first segment
One second upper roller composition on another right-angle side at expansion bracket inside corner, wherein first upper roller is stretched with the second section
A right-angle side at contracting frame external corners fits, another right angle at second upper roller and the second section expansion bracket external corners
While fitting；Second roller group mainly on the right-angle side by being set to the second section expansion bracket inside corner one first
Bottom roller and one second bottom roller being set on another right-angle side of the second section expansion bracket corner composition, wherein this first
Bottom roller fits with the right-angle side at third section expansion bracket external corners, on the outside of second bottom roller and third section expansion bracket
Another right-angle side of corner fits.
6. the synchronization lifting telescopic device according to claim 2 for crane, which is characterized in that in the first segment
Expansion bracket lower part is respectively arranged with link block on one first on opposite two sides, opposite on the third section expansion bracket top
One first lower connecting block is respectively arranged on two sides, described upper synchronous piece one end is connect with link block on first, the other end with
The connection of first lower connecting block；It is respectively arranged on one second and connects on the opposite other two sides in first segment expansion bracket lower part
Block is connect, described lower synchronous piece one end is connect with link block on second, and the other end is connect with the upper end of third section expansion bracket.
7. the synchronization lifting telescopic device according to claim 6 for crane, which is characterized in that connect on described second
Connect the position of block than first on link block position it is high, the upper end of the position of first lower connecting block than third section expansion bracket
Position is low.
8. the synchronization lifting telescopic device according to claim 6 for crane, which is characterized in that on described first
It is convexly equipped with interconnecting piece on one respectively in the middle part of the inner side edge of link block on link block and second, in first lower connecting block and third
It saves and is convexly equipped with interconnecting piece respectively in the middle part of the outer side edges of expansion bracket upper end.
9. the synchronization lifting telescopic device according to claim 1 for crane, which is characterized in that the upper directive wheel
It is set on the upper end of the second section expansion bracket；One is respectively arranged on the opposite two sides in the second section expansion bracket lower part
Mounting blocks, the lower directive wheel are set on mounting blocks.
10. the synchronization lifting telescopic device according to claim 1 for crane, which is characterized in that the upper synchronization
Part is synchronous rope or synchronization chain, and the lower synchronous piece is synchronous rope or synchronization chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104252.1A CN109552992A (en) | 2019-02-01 | 2019-02-01 | A kind of synchronization lifting telescopic device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104252.1A CN109552992A (en) | 2019-02-01 | 2019-02-01 | A kind of synchronization lifting telescopic device for crane |
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| Publication Number | Publication Date |
|---|---|
| CN109552992A true CN109552992A (en) | 2019-04-02 |
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ID=65874153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910104252.1A Pending CN109552992A (en) | 2019-02-01 | 2019-02-01 | A kind of synchronization lifting telescopic device for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109552992A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272660Y (en) * | 2008-07-10 | 2009-07-15 | 彭洪 | Tower frame of floor suspension-paving machine |
| JP2015030618A (en) * | 2013-08-06 | 2015-02-16 | 株式会社コシハラ | Floor crane |
| CN205662303U (en) * | 2015-08-13 | 2016-10-26 | 哈尔滨绿长城森林防护装备有限公司 | Forest fire prevention surveys automatic rising tower |
| CN107055351A (en) * | 2016-11-30 | 2017-08-18 | 内蒙动力机械研究所 | A kind of telescopic arm |
| CN209455953U (en) * | 2019-02-01 | 2019-10-01 | 欧彩虹 | A kind of synchronization lifting telescopic device for crane |
-
2019
- 2019-02-01 CN CN201910104252.1A patent/CN109552992A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272660Y (en) * | 2008-07-10 | 2009-07-15 | 彭洪 | Tower frame of floor suspension-paving machine |
| JP2015030618A (en) * | 2013-08-06 | 2015-02-16 | 株式会社コシハラ | Floor crane |
| CN205662303U (en) * | 2015-08-13 | 2016-10-26 | 哈尔滨绿长城森林防护装备有限公司 | Forest fire prevention surveys automatic rising tower |
| CN107055351A (en) * | 2016-11-30 | 2017-08-18 | 内蒙动力机械研究所 | A kind of telescopic arm |
| CN209455953U (en) * | 2019-02-01 | 2019-10-01 | 欧彩虹 | A kind of synchronization lifting telescopic device for crane |
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Application publication date: 20190402 |