CN109404489A - A kind of telescopic boom towing chain mechanism - Google Patents
A kind of telescopic boom towing chain mechanism Download PDFInfo
- Publication number
- CN109404489A CN109404489A CN201710708175.1A CN201710708175A CN109404489A CN 109404489 A CN109404489 A CN 109404489A CN 201710708175 A CN201710708175 A CN 201710708175A CN 109404489 A CN109404489 A CN 109404489A
- Authority
- CN
- China
- Prior art keywords
- support
- slot
- wire
- telescopic boom
- passing tube
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
- F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
-
- 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
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to a kind of telescopic boom towing chain mechanisms, the telescopic boom towing chain mechanism includes telescopic arm support and the drag chain support device that is arranged in telescopic arm support, the telescopic arm support includes the first cantilever crane, second cantilever crane and third cantilever crane, the drag chain support device included line component and bracket, the line component of crossing includes wire-passing tube and drag chain, one end of the drag chain is fixed on bracket, the other end is connected with wire-passing tube, the wire-passing tube is fixed on third cantilever crane, the drag chain support device further includes the support slot for being used to support line component, the line component of crossing is slidably matched with support slot, the support slot is fixed on the second cantilever crane by fixed bracket.It uses support slot to replace pipe sleeve as support, reduces the abrasion to drag chain in telescopic process, and use support slot as support, be also convenient for it when installing drag chain and be placed on support slot, it is time saving and energy saving.
Description
Technical field
The present invention relates to a kind of telescopic boom towing chain mechanisms.
Background technique
Currently, telescopic arm structure is widely used in the special equipments such as crane, high-altitude operation vehicle, at the end of telescopic arm cantilever crane
End can install the dedicated equipment such as suspension hook, job platform additional, to be applied to different workplaces.The row of certain telescopic arms
Journey is longer, for the needs for meeting its end Special working device, will use the drag chain of long stroke to electrical harness, water pipe, oil pipe
Etc. being drawn and protected.But after the stroke of drag chain reaches certain length, due to harness and pipeline in its self weight, drag chain
Gravity, overhanging portion will will appear obviously deform it is sagging, to cause not working for drag chain.
In response to this, the China that Authorization Notice No. CN201166089Y, authorized announcement date are 2008.12.17 is real
A kind of sleeve type towing chain mechanism is disclosed with new patent, which includes drag chain, bracket, wire-passing tube, cantilever crane one, cantilever crane
Two and cantilever crane three, cantilever crane one, cantilever crane two and cantilever crane three respectively constituted the first cantilever crane, the second cantilever crane and third cantilever crane,
One end of drag chain is fixed on the right end of bracket, and the right end of wire-passing tube is fixed on cantilever crane three, and guide rail, guide rail are equipped on cantilever crane one
It is equipped with the casing that can be moved on it, the other end of casing is fixed on cantilever crane two, and it is solid again that the other end of drag chain passes through casing
It is scheduled on wire-passing tube, the other end of wire-passing tube can be in set in-pipe.The towing chain mechanism ensure that cantilever crane is extended through full reduced to complete
The overhanging portion of any one of journey state, drag chain is all supported by supporting mechanism, is solved drag chain and is deformed and does not work
The problem of.But wear problem is produced simultaneously, drag chain will slide in casing, it is easy to abrasion is generated, the failure of drag chain is caused,
Drag chain is installed also more troublesome into casing simultaneously.
Summary of the invention
The purpose of the present invention is to provide a kind of telescopic boom towing chain mechanisms, can be generated with solving drag chain in telescopic process
Wear and do not allow problem easy to install.
To achieve the above object, the first technical solution of telescopic boom towing chain mechanism of the present invention is: a kind of telescopic boom
Towing chain mechanism, including telescopic arm support and the drag chain support device being arranged in telescopic arm support, the telescopic arm support includes
First cantilever crane, the second cantilever crane and third cantilever crane, the drag chain support device included line component and bracket, the line component packet excessively
Wire-passing tube and drag chain are included, one end of the drag chain is fixed on bracket, and the other end is connected with wire-passing tube, and the wire-passing tube is fixed on
On third cantilever crane, it is characterised in that: the drag chain support device further includes the support slot for being used to support line component, described to cross line
Component is slidably matched with support slot, and the support slot is fixed on the second cantilever crane by fixed bracket.
Second of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of a kind of technical solution, first cantilever crane is equipped with the sliding support to play a supportive role to support slot, sliding support
It is slidably matched with support slot.Not only slot sliding easy to support, but also support can be provided to support slot.
The third technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of two kinds of technical solutions, the support slot mounting hole passed through for support slot, support slot sliding are provided on the sliding support
It is assemblied in support slot mounting hole.Support slot mounting hole is convenient for limiting support slot in the vertical direction.
4th kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of three kinds of technical solutions, the sliding support includes the first fixed plate being fixed on the first cantilever crane, and described first is solid
Fixed board, which is equipped with, installs slot with support slot is slidably matched first, and described first installs to be equipped at the notch of slot and install slot with first
Surround the support slot limit plate of the support slot mounting hole.First installs the installation of slot slot easy to support, and support slot limit plate is used
In being limited in the vertical direction to support slot.
5th kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of four kinds of technical solutions, first fixed plate is U-shaped board, and described first, which installs slot, is provided in U-shaped board and U-shaped mouth
On opposite and adjacent face, the support slot limit plate is arranged on face adjacent with U-shaped opening in U-shaped board.U-shaped board was both convenient for
The sliding of support slot also mitigates the weight of sliding support.
6th kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of five kinds of technical solutions, the support slot limit plate is arranged on the inner wall of U-shaped board.Protection is played to support slot to make
With.
7th kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of one kind to the 6th kind of any one technical solution, the wire-passing tube passed through for wire-passing tube is provided on the fixed bracket and is worn
Fill hole.Wire-passing tube mounting hole is convenient for limiting wire-passing tube in the vertical direction.
8th kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of seven kinds of technical solutions, the fixed bracket includes the second fixed plate being fixed on the second cantilever crane, and described second is solid
Fixed board, which is equipped with, installs slot for wire-passing tube passes through second, and described second installs to be equipped at the notch of slot and install slot with second and surround
The wire-passing tube limit plate of the wire-passing tube mounting hole.Second install slot be convenient for wire-passing tube installation, wire-passing tube limit plate for pair
Wire-passing tube is limited in the vertical direction.
9th kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of eight kinds of technical solutions, second fixed plate is U-shaped board, and described second, which installs slot, is provided in U-shaped board and U-shaped mouth
On opposite and adjacent face, the wire-passing tube limit plate is arranged on face adjacent with U-shaped opening in U-shaped board.
Tenth kind of technical solution of telescopic boom towing chain mechanism of the present invention is: the of telescopic boom towing chain mechanism of the present invention
On the basis of nine kinds of technical solutions, the wire-passing tube limit plate is arranged on the inner wall of U-shaped board.Protection is played to support slot to make
With.
A kind of technical solution of the tenth of telescopic boom towing chain mechanism of the present invention is: in telescopic boom towing chain mechanism of the present invention
, on the basis of the 6th kind of any one technical solution, the support slot stretches out the bottom of the one end in direction away from telescopic arm for the first
Portion is equipped with flanging.Flanging can make drag chain motion smoothing on support slot, avoid the scratch of drag chain.
The beneficial effects of the present invention are: compared with prior art, replace pipe sleeve as support with support slot, reduce pair
Abrasion of the drag chain in telescopic process, and use support slot as support, it, which is also convenient for, when installing drag chain is placed on support slot,
It is time saving and energy saving.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is the full reduced state of telescopic boom towing chain mechanism of the present invention；
Fig. 2 is structural schematic diagram when telescopic boom towing chain mechanism of the present invention complete stretches state；
Fig. 3 is the support bracket fastened structural schematic diagram of telescopic boom towing chain mechanism of the present invention；
Fig. 4 is the structural schematic diagram of the sliding support of telescopic boom towing chain mechanism of the present invention；
Fig. 5 is the structural schematic diagram of the support slot of telescopic boom towing chain mechanism of the present invention；
Fig. 6 is the structural schematic diagram of the rolling wheel support of telescopic boom towing chain mechanism of the present invention；
Fig. 7 is the structural schematic diagram of the idler wheel of telescopic boom towing chain mechanism of the present invention.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of telescopic boom towing chain mechanism of the invention, as shown in Figures 1 to 7, a kind of telescopic boom drag chain
Mechanism, including telescopic arm support and the drag chain support device being arranged in telescopic arm support.Drag chain support device includes wire-passing tube
Support 14, wire-passing tube 13, fixed bracket 12, sliding support 11, support slot 10, support frame 5, rolling wheel support 9, idler wheel 8, bracket 7,
And limit plate 2.Wire-passing tube support 14 is welded on third cantilever crane 1, and the left end of wire-passing tube 13 is bolted on wire-passing tube
In support 14, the right end of wire-passing tube 13 is connected with the end B of drag chain 6, while wire-passing tube 13 can be with drag chain 6 together in support slot 10
Interior sliding, wherein support slot 10 is U-type groove；Fixed bracket 12 is welded on the second cantilever crane 3 comprising the second fixed plate, second
The cross section of fixed plate be it is U-shaped, be provided with second on the face opposite and adjacent with U-shaped mouth in U-shaped board and install slot, second, which installs slot, makes
Wire-passing tube 13 passes through and installs convenient for it, is equipped on the face adjacent with U-shaped opening for limiting wire-passing tube 13 vertically in U-shaped board
The limit plate 2 of direction displacement, the left end of support slot 10 is fixed by bolts on fixed bracket 12 flanging opposite with limit plate 2；
Sliding support 11 is welded on the first cantilever crane 4 comprising the first fixed plate, the cross section of the first fixed plate be it is U-shaped, in U-shaped board
First is provided on opposite and adjacent face with U-shaped mouth and installs slot, first, which installs slot, passes through support slot 10 and convenient for its installation, U
Limit plate 2 for limiting the displacement of 10 vertical direction of support slot, support slot 10 are installed on the face adjacent with U-shaped opening on template
It can install in the first of sliding support 11 and be slided on slot, sliding support 11 is equipped with nylon cushion block, is conducive to support slot 10
Sliding；Support frame 5 is also welded on first cantilever crane 4, the quantity of support frame 5 is two, and bracket 7 is welded on support frame 5；Bracket
7 left end is connected with the end A of drag chain 6, and drag chain 6 can slide in bracket 7, and the end B of drag chain 6 is connected by bolt and wire-passing tube 13
It connects, drag chain 6 can move in support slot 10, and lower end is equipped with idler wheel 8 at the C of support slot 10, and idler wheel 8 is solid by rolling wheel support 9
It is scheduled on support slot 10, idler wheel 8 can be avoided the cantilevered out too long generation movement that is sagging and influencing drag chain of C-terminal of support slot 10.
In the present solution, realizing that the key of the total travel support to drag chain is: the C-terminal of support slot 10 is curved with drag chain 6
Pars convoluta position relative position is constant always.The movement of telescopic arm is synchronous in this programme, i.e., third cantilever crane 1 is relative to the second cantilever crane
3 and second cantilever crane 3 relative to the first cantilever crane 4 speed be it is identical, so twice second cantilever crane 3 of the speed of wire-passing tube 13,
Twice second cantilever crane 3 of the speed at the end B of drag chain 6, the speed of support slot 10 is identical as the second cantilever crane 3, so the C of support slot 10
The speed of the crooked position of end and drag chain 6 is identical as the second cantilever crane 3, and the two relative position remains unchanged.To be dragged in realization
Chain total travel avoids the movement to drag chain from forming interference while support.
In described above, in order to effectively accommodate, support drag chain 6, the width of drag chain 6, bracket are wider than in bracket 7
7 are processed using sheet metal bending, and cross section is U-shaped, and U-lag can limit the lateral displacement of drag chain 6.
Preferably, in order to effectively accommodating, support harness, the pipeline at the end B for being pierced by drag chain 6, and easy to process, mistake
Spool 13 selects thin-walled rectangular tube.
Preferably, obtaining C-terminal bottom folding in support slot 10 has root face, and root face can guarantee that drag chain 6 in C-terminal motion smoothing, is kept away
Exempt from drag chain 6 to scratch in sliding process.
Preferably, the upper hem of fixed bracket 12 and the width of rebate of web are greater than the width of wire-passing tube 13, are convenient for line
The placement of pipe 13.
Preferably, the width of rebate of the upper hem of sliding support 11 and web is greater than the width of support slot 10, easy to support
The placement of slot 10.
In the present embodiment, the section of fixed bracket 12 and sliding support 11 is all U-shaped, and upper hem and web have slot
Mouthful, in other embodiments, fixed bracket and sliding support are only provided with notch in its web, it is possible to reduce the installation of limit plate.
In the present embodiment, support slot 10 is bolted on fixed bracket 12, in other embodiments, branch
Support slot is welded to by welding on fixed bracket.
In the present embodiment, the C-terminal of support slot 10 is by idler wheel 8 as mobile and support, in other embodiments,
Guide-track groove can be opened up on the side wall of the first cantilever crane, support slot is made to move and support on guide-track groove.
Claims (10)
1. a kind of telescopic boom towing chain mechanism, including telescopic arm support and the drag chain support device being arranged in telescopic arm support,
The telescopic arm support include the first cantilever crane, the second cantilever crane and third cantilever crane, the drag chain support device included line component and
Bracket, the line component of crossing includes wire-passing tube and drag chain, and one end of the drag chain is fixed on bracket, the other end and wire-passing tube phase
Even, the wire-passing tube is fixed on third cantilever crane, it is characterised in that: the drag chain support device further includes being used to support line group
The support slot of part, the line component of crossing are slidably matched with support slot, and the support slot is fixed on the second cantilever crane by fixed bracket
On.
2. telescopic boom towing chain mechanism according to claim 1, it is characterised in that: first cantilever crane is equipped with to support
The sliding support that slot plays a supportive role, sliding support are slidably matched with support slot.
3. telescopic boom towing chain mechanism according to claim 2, it is characterised in that: be provided on the sliding support for support
The support slot mounting hole that slot passes through, support slot are slidedly assemblied in support slot mounting hole.
4. telescopic boom towing chain mechanism according to claim 3, it is characterised in that: the sliding support includes being fixed on the
The first fixed plate on one cantilever crane, first fixed plate, which is equipped with, installs slot with support slot is slidably matched first, and described the
One installs to be equipped at the notch of slot and with first installs the support slot limit plate that slot surrounds the support slot mounting hole.
5. telescopic boom towing chain mechanism according to claim 4, it is characterised in that: first fixed plate is U-shaped board, institute
It states first and installs slot and be provided on face opposite and adjacent with U-shaped mouth in U-shaped board, the support slot limit plate is arranged in U-shaped board
On the upper face adjacent with U-shaped opening.
6. telescopic boom towing chain mechanism according to claim 5, it is characterised in that: the support slot limit plate is arranged in U
On the inner wall of template.
7. telescopic boom towing chain mechanism described in -6 any one according to claim 1, it is characterised in that: on the fixed bracket
It is provided with the wire-passing tube mounting hole passed through for wire-passing tube.
8. telescopic boom towing chain mechanism according to claim 7, it is characterised in that: the fixed bracket includes being fixed on the
The second fixed plate on two cantilever cranes, second fixed plate, which is equipped with, installs slot for wire-passing tube passes through second, and described second wears
It is equipped at the notch of tankage and installs the wire-passing tube limit plate that slot surrounds the wire-passing tube mounting hole with second.
9. telescopic boom towing chain mechanism according to claim 8, it is characterised in that: second fixed plate is U-shaped board, institute
It states second and installs slot and be provided on face opposite and adjacent with U-shaped mouth in U-shaped board, the wire-passing tube limit plate is arranged in U-shaped board
On the upper face adjacent with U-shaped opening.
10. telescopic boom towing chain mechanism according to claim 9, it is characterised in that: the wire-passing tube limit plate is arranged in U
On the inner wall of template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708175.1A CN109404489A (en) | 2017-08-17 | 2017-08-17 | A kind of telescopic boom towing chain mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708175.1A CN109404489A (en) | 2017-08-17 | 2017-08-17 | A kind of telescopic boom towing chain mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404489A true CN109404489A (en) | 2019-03-01 |
Family
ID=65455052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708175.1A Pending CN109404489A (en) | 2017-08-17 | 2017-08-17 | A kind of telescopic boom towing chain mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404489A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454199A (en) * | 2019-08-30 | 2019-11-15 | 徐州徐工施维英机械有限公司 | A kind of telescopic arm oil pipe towing chain device and the concrete spraying vehicle with it |
| CN111692287A (en) * | 2020-06-05 | 2020-09-22 | 南通润邦重机有限公司 | Special tow chain system of aerial working platform |
| CN111704043A (en) * | 2020-06-17 | 2020-09-25 | 柳州柳工挖掘机有限公司 | Telescopic boom structure, operation boom and engineering machinery |
| KR20220018695A (en) * | 2020-08-07 | 2022-02-15 | 이경임 | Cable moving apparatus |
| CN114877023A (en) * | 2022-04-15 | 2022-08-09 | 长沙中联重科环境产业有限公司 | Telescopic arm type drag chain structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339679Y (en) * | 2008-07-14 | 2009-11-04 | 湖南星邦重工有限公司 | Telescopic sleeve type tow chain device with mobile bracket |
| CN201507616U (en) * | 2009-06-22 | 2010-06-16 | 湖南星邦重工有限公司 | Sleeve telescopic drag chain device with ferrying function |
| CN202492290U (en) * | 2012-02-13 | 2012-10-17 | 徐州海伦哲专用车辆股份有限公司 | Drag chain mechanism with supporting and protecting functions |
| CN102829247A (en) * | 2012-08-16 | 2012-12-19 | 北京市三一重机有限公司 | Multi-level conveying system and high-altitude operation engineering machine |
| CN203790489U (en) * | 2014-01-28 | 2014-08-27 | 沈阳捷通消防车有限公司 | Oil electricity transportation flexible towing chain mechanism for fire fighting truck |
| CN207178580U (en) * | 2017-08-17 | 2018-04-03 | 河南森源重工有限公司 | Telescopic boom towing chain mechanism |
| CN217814782U (en) * | 2022-07-25 | 2022-11-15 | 四川蓝海智能装备制造有限公司 | Pipeline mounting structure and telescopic arm |
-
2017
- 2017-08-17 CN CN201710708175.1A patent/CN109404489A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339679Y (en) * | 2008-07-14 | 2009-11-04 | 湖南星邦重工有限公司 | Telescopic sleeve type tow chain device with mobile bracket |
| CN201507616U (en) * | 2009-06-22 | 2010-06-16 | 湖南星邦重工有限公司 | Sleeve telescopic drag chain device with ferrying function |
| CN202492290U (en) * | 2012-02-13 | 2012-10-17 | 徐州海伦哲专用车辆股份有限公司 | Drag chain mechanism with supporting and protecting functions |
| CN102829247A (en) * | 2012-08-16 | 2012-12-19 | 北京市三一重机有限公司 | Multi-level conveying system and high-altitude operation engineering machine |
| CN203790489U (en) * | 2014-01-28 | 2014-08-27 | 沈阳捷通消防车有限公司 | Oil electricity transportation flexible towing chain mechanism for fire fighting truck |
| CN207178580U (en) * | 2017-08-17 | 2018-04-03 | 河南森源重工有限公司 | Telescopic boom towing chain mechanism |
| CN217814782U (en) * | 2022-07-25 | 2022-11-15 | 四川蓝海智能装备制造有限公司 | Pipeline mounting structure and telescopic arm |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454199A (en) * | 2019-08-30 | 2019-11-15 | 徐州徐工施维英机械有限公司 | A kind of telescopic arm oil pipe towing chain device and the concrete spraying vehicle with it |
| CN110454199B (en) * | 2019-08-30 | 2024-05-28 | 徐州徐工施维英机械有限公司 | Concrete spraying vehicle with telescopic boom oil pipe drag chain device |
| CN111692287A (en) * | 2020-06-05 | 2020-09-22 | 南通润邦重机有限公司 | Special tow chain system of aerial working platform |
| CN111692287B (en) * | 2020-06-05 | 2021-07-09 | 江苏润邦工业装备有限公司 | Special tow chain system of aerial working platform |
| CN111704043A (en) * | 2020-06-17 | 2020-09-25 | 柳州柳工挖掘机有限公司 | Telescopic boom structure, operation boom and engineering machinery |
| KR20220018695A (en) * | 2020-08-07 | 2022-02-15 | 이경임 | Cable moving apparatus |
| KR102380347B1 (en) * | 2020-08-07 | 2022-03-30 | 이경임 | Cable moving apparatus |
| CN114877023A (en) * | 2022-04-15 | 2022-08-09 | 长沙中联重科环境产业有限公司 | Telescopic arm type drag chain structure |
| CN114877023B (en) * | 2022-04-15 | 2023-05-02 | 长沙中联重科环境产业有限公司 | Telescopic arm type drag chain structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109404489A (en) | A kind of telescopic boom towing chain mechanism | |
| CN207178580U (en) | Telescopic boom towing chain mechanism | |
| CN201857226U (en) | Crane oil cylinder groove entering auxiliary guide connecting rod device | |
| CN107117537A (en) | The cleaning Crane Rail frame of Mobile crane is installed | |
| CN102287151A (en) | Guide arch device suitable for coiled tubing unit or drilling machine pipe | |
| CN201817208U (en) | Simple lifting machine | |
| CN202834387U (en) | Pipe penetrating device | |
| CN201314203Y (en) | Fully hydraulic casing centralizer with safety device | |
| CN202638876U (en) | Roll changing device of side-out type mandrel pipe mill | |
| CN202322107U (en) | External drag chain device for telescopic boom | |
| CN204897325U (en) | A sister block mechanism for high -pressure rubber pipe | |
| CN201381201Y (en) | Built-in pipeline conveying system | |
| CN209497196U (en) | A kind of multi-functional branch-cut bridge bracket assembly | |
| CN205110424U (en) | Overhead pay -off of steel wire | |
| CN205275045U (en) | Trolley's cable junction device | |
| CN212101372U (en) | Ceramic fiber braided rope collecting device | |
| CN204281086U (en) | A kind of have suspender and subtract the hoisting crane shaking function | |
| CN202575628U (en) | Novel electric cable trolley | |
| CN203359827U (en) | Gantry crane with electric hoist | |
| CN202988576U (en) | Simple and easy chain hoist lifting support | |
| CN205274926U (en) | Overspeed governor wire rope fender bracket | |
| CN201704037U (en) | Adjustable hanging basket suspension mechanism | |
| CN110454199A (en) | A kind of telescopic arm oil pipe towing chain device and the concrete spraying vehicle with it | |
| CN204919525U (en) | Strong machine that rams and combination formula top arm frame structure thereof | |
| CN215048176U (en) | Hoisting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |