CN107572361A - A kind of fast releasing apparatus for the experiment of container vertical impact - Google Patents
A kind of fast releasing apparatus for the experiment of container vertical impact Download PDFInfo
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- CN107572361A CN107572361A CN201710953044.XA CN201710953044A CN107572361A CN 107572361 A CN107572361 A CN 107572361A CN 201710953044 A CN201710953044 A CN 201710953044A CN 107572361 A CN107572361 A CN 107572361A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Abstract
The invention discloses a kind of fast releasing apparatus for the experiment of container vertical impact, its structure includes driving motor, take-up roller, movable bolt, quick release harness, support arm, clamp nut, improved mat, standing screw, steel wire rope, fixed cranse, drive link, bolt hole, rod, container suspension hook.Beneficial effects of the present invention：The quick release harness that this practicality is provided with shares two, and the both sides of support arm are installed on by movable bolt, container lifting rope is sling by container suspension hook, then by fixed cranse connecting steel wire ropes both ends, folding and unfolding control is carried out by take-up roller, when steel wire rope lengthens, then container suspension hook tilts, the effect that both ends are put with speed per hour is served, ensure that the depth of parallelism of vertical impact contact surface significantly, improves the accuracy of test data.
Description
Technical field
The present invention is a kind of fast releasing apparatus for the experiment of container vertical impact, belongs to container fast releasing apparatus field.
Background technology
A whole set of transportation system that the maximum success of container is the standardization of its product and thus established.It can allow
The huge monster of one tens tons of load-carrying realizes standardization, and be done step-by-step based on this in global range ship, port
The logistics system that mouth, course line, highway, terminal, bridge, tunnel, multimodal transport match, this can be rated as since the dawn of human civilization really
One of great miracle of creation.
Offshore container needs to test it by vertical impact experiment, and after analog unit is sling and ground is not into
Angle less than 5 ° is fallen suddenly.This, which just needs one, to sling container, the device that and can rapidly discharges container
To complete vertical impact experiment.
Prior art discloses Application No.：201520768993.7 it is a kind of for container vertical impact experiment speed
Put device, bag is linked with the suspension rod of hook on hole, and the bottom of suspension rod is fixed with flap seat, and first rotating shaft and the are provided with the flap seat
Two rotating shafts, hook being provided with first rotating shaft, draw bar being provided with the second rotating shaft, the front end of hook stretches out flap seat and forms lanyard
Portion, forms bayonet socket between the rear end of hook and flap seat, the side of draw bar is provided with dop, the position of dop and the position of bayonet socket
It is corresponding.Its simple in construction, easy to make, dependable performance, utilization is can be repeated several times, practicality and operability are good, Ji Nengwen
Fixed slings container, and and can rapidly discharges container, can meet the requirement of vertical impact experiment completely.Existing skill
Art can not ensure the depth of parallelism at container both ends, cause vertical impact contact surface unequal, have impact on test data.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of speed for the experiment of container vertical impact
Device is put, to solve the depth of parallelism that existing technology can not ensure container both ends, causes vertical impact contact surface unequal, shadow
The problem of having rung test data.
To achieve these goals, the present invention is to realize by the following technical solutions：It is vertical that one kind is used for container
The fast releasing apparatus of impact test, its structure include driving motor, take-up roller, movable bolt, quick release harness, support arm, fastening spiral shell
Mother, improved mat, standing screw, steel wire rope, described support arm middle part are provided with the thread groove of activity installing standing screw, institute
The standing screw stated is that columnar structured and top is interlocked with take-up cylinder bottom, and described driving motor lower end passes through insertion
Mode is installed at the top of take-up roller, and described quick release harness is provided with two and is installed on a support arm left side by movable bolt respectively altogether
Right both sides, described steel wire rope both ends are connected with quick release harness top and middle part is by wrapping mode in the middle part of take-up roller,
Described standing screw bottom is threadedly coupled with clamp nut in the middle part of the support arm, described improved mat for circular configuration and
It is installed between clamp nut and support arm, described quick release harness includes fixed cranse, drive link, bolt hole, rod, container
Suspension hook, described fixation cranse bottom are located at drive link upper end, described drive link lower end right side and rod by welding manner
It is connected by welding manner, described bolt hole is located at rod right side central and the structure that is formed in one, described container
Suspension hook is U-shaped structure and groove is located on the right side of rod by welding manner.
Further, described driving motor includes pin hole, power transmission shaft, motor mounting plate, mounting hole, terminal box, machine
Body, motor shield.
Further, described pin hole is provided with two or more and is evenly distributed on power transmission shaft left side and the knot that is formed in one
Structure, on the right side of described power transmission shaft by embedded mode on the left of body, described body is columnar structured and right side and electricity
Machine protective cover is connected by fit mode.
Further, for described terminal box by manner in the middle part of body, described motor mounting plate passes through weldering
Connect mode and be located at organism bottom, described motor mounting plate both sides are provided with mounting hole and the structure that is formed in one, described transmission
Axle is connected by pin hole with take-up roller.
Further, described take-up roller includes fastening hole, guide shaft, take-up groove, cylinder.
Further, described guide shaft is circular configuration with cylinder and is connected by fit mode, described fastening
Hole is on the left of guide shaft and the structure that is formed in one, described take-up groove are located at cylinder middle part and the structure that is formed in one.
Further, described standing screw includes fixed card buckle, alignment pin, fixing axle, flank.
Further, described flank and fixing axle are nested the molding structure that merges into a single whole, described fixing axle top
Be connected by welding manner with alignment pin, described fixed card buckle be circular configuration and with alignment pin at the top of phase fit.
Further, described support arm upper end both sides are provided with installs fixture, and described installs fixture includes nut, first
Pressing plate, indent, fastening screw, the second pressing plate.
Further, described indent is provided with two and is respectively arranged on the first pressing plate and the second pressing plate middle inside and is altogether
Integrated formed structure, described fastening screw are provided with two and are connected through the first pressing plate both sides with the second pressing plate both sides altogether,
Nut is provided with the top of described fastening screw and is connected through a screw thread, the second described pressing plate passes through welding manner phase with support arm
Connection.
Beneficial effect
A kind of fast releasing apparatus for the experiment of container vertical impact of the present invention：As shown in figure 1, driven by driving motor
Take-up roller is rotated, and so as to carry out folding and unfolding to steel wire rope, and steel wire rope both ends are fixed with two quick release harness respectively, and
It is used to support arm and driving motor, take-up roller being fixed by standing screw afterwards, the quick release harness being provided with is by movable bolt
Support arm both sides are fixed on, angle adjustment can be carried out to quick release harness by steel wire rope folding and unfolding, after steel wire rope lengthens, then speed is put
Frame angle is outside, so that container suspension hook tilts, the driving motor being provided with drives drive link to carry out forward and reverse rotation by body
Turn, and drive link is fixed by pin hole and take-up roller, so as to drive take-up roller to be rotated, in addition, receiving
Take-up groove is provided with the middle part of line roller, can prevent that the situation that steel wire rope slides occurs during take-up, serve protective action, then lead to
Cross fastening hole to be fastened guide shaft and the fixed card buckle on standing screw top, serve fixation, and do not influence take-up rolling
Cylinder take-up, reduces resistance, and the standing screw being provided with is run through fixing axle in the middle part of support arm by flank, then by anti-skidding
Pad is threadedly coupled with clamp nut to flank, the situation for preventing standing screw from being fallen off with support arm, this practicality
The quick release harness being provided with shares two, and the both sides of support arm are installed on by movable bolt, by container suspension hook by container
Lifting rope is sling, and then by fixed cranse connecting steel wire ropes both ends, folding and unfolding control is carried out by take-up roller, when steel wire rope is put
Long, then container suspension hook tilts, and serves the effect that both ends are put with speed per hour, ensure that the parallel of vertical impact contact surface significantly
Degree, improve the accuracy of test data.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural representation of fast releasing apparatus for the experiment of container vertical impact of the present invention.
Fig. 2 is the quick release harness structural representation of the present invention.
Fig. 3 is the driving motor structural representation of the present invention.
Fig. 4 is the take-up roller frame schematic diagram of the present invention.
Fig. 5 is the standing screw structural representation of the present invention.
Fig. 6 is the structural representation of A in Fig. 1.
Fig. 7 is the driving motor circuit diagram of the present invention.
Fig. 8 is the installs fixture structural representation of the present invention.
In figure：It is driving motor -1, take-up roller -2, movable bolt -3, quick release harness -4, support arm -5, clamp nut -6, anti-
Skidding piece -7, standing screw -8, steel wire rope -9, fixed cranse -401, drive link -402, bolt hole -403, rod -404, packaging
Case suspension hook -405, pin hole -101, power transmission shaft -102, motor mounting plate -103, mounting hole -104, terminal box -105, body -
106th, motor shield -107, fastening hole -201, guide shaft -202, take-up groove -203, cylinder -204, fixed card buckle -801, positioning
It is pin -802, fixing axle -803, flank -804, installs fixture -10, nut -1001, the first pressing plate -1002, indent -1003, tight
Gu screw rod -1004, the second pressing plate -1005.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Embodiment 1
Fig. 1-Fig. 7 is referred to, the present invention provides a kind of fast releasing apparatus for the experiment of container vertical impact:Its structure bag
Include driving motor 1, take-up roller 2, movable bolt 3, quick release harness 4, support arm 5, clamp nut 6, improved mat 7, standing screw
8th, steel wire rope 9, the described middle part of support arm 5 are provided with the thread groove of activity installing standing screw 8, and described standing screw 8 is
Columnar structured and top is interlocked with the bottom of take-up roller 2, and the described lower end of driving motor 1 is installed on receipts by embedded mode
The top of line roller 2, described quick release harness 4 are provided with two and are installed on the left and right sides of support arm 5 by movable bolt 3 respectively altogether,
The described both ends of steel wire rope 9 are connected with the top of quick release harness 4 and middle part is by wrapping mode located at the middle part of take-up roller 2, described
The bottom of standing screw 8 be threadedly coupled through the middle part of support arm 5 with clamp nut 6, described improved mat 7 for circular configuration and
It is installed between clamp nut 6 and support arm 5, described quick release harness 4 includes fixed cranse 401, drive link 402, bolt hole
403rd, rod 404, container suspension hook 405, the described bottom of fixation cranse 401 are located at the upper end of drive link 402 by welding manner,
It is connected on the right side of the described lower end of drive link 402 with rod 404 by welding manner, described bolt hole 403 is located at rod 404
Right side central and the structure that is formed in one, described container suspension hook 405 is U-shaped structure and groove is located at by welding manner
The right side of rod 404, described driving motor 1 include pin hole 101, power transmission shaft 102, motor mounting plate 103, mounting hole 104, connect
Line box 105, body 106, motor shield 107, described pin hole 101 are provided with two or more and are evenly distributed on power transmission shaft
102 left sides and the structure that is formed in one, the described right side of power transmission shaft 102 is located at the left side of body 106 by embedded mode, described
Body 106 is that columnar structured and right side is connected with motor shield 107 by fit mode, and described terminal box 105 is logical
Manner is crossed located at the middle part of body 106, described motor mounting plate 103 is located at the bottom of body 106 by welding manner, described
The both sides of motor mounting plate 103 be provided with mounting hole 104 and the structure that is formed in one, described power transmission shaft 102 passes through pin hole 101
It is connected with take-up roller 2, described take-up roller 2 includes fastening hole 201, guide shaft 202, take-up groove 203, cylinder 204, described
Guide shaft 202 be circular configuration with cylinder 204 and be connected by fit mode, described fastening hole 201 is located at guide shaft 202
Left side and the structure that is formed in one, located at the middle part of cylinder 204 and the structure that is formed in one, described consolidates described take-up groove 203
Determining screw rod 8 includes fixed card buckle 801, alignment pin 802, fixing axle 803, flank 804, described flank 804 and fixing axle
803 are nested the molding structure that merges into a single whole, and the described top of fixing axle 803 is connected by welding manner with alignment pin 802, institute
The fixed card buckle 801 stated be circular configuration and with the top phase fit of alignment pin 802.
The present invention provides a kind of fast releasing apparatus for the experiment of container vertical impact, and its operation principle is：Such as Fig. 1 institutes
Show, drive take-up roller 2 to be rotated by driving motor 1, so as to carry out folding and unfolding to steel wire rope 9, and the both ends of steel wire rope 9 are distinguished
It is fixed with two quick release harness 4, then is used to carry out support arm 5 and driving motor 1, take-up roller 2 by standing screw 8
Fixed, the quick release harness 4 being provided with is fixed on the both sides of support arm 5 by movable bolt 3, quick release harness 4 can be entered by the folding and unfolding of steel wire rope 9
Row angle adjustment, after steel wire rope 9 lengthens, then the angle of quick release harness 4 is outside, so that container suspension hook 405 tilts, the biography being provided with
Dynamic motor 1 drives drive link 402 to carry out forward and reverse rotation by body 106, and drive link 402 passes through pin hole 101 and take-up
Roller 2 is fixed, so as to drive take-up roller 2 to be rotated, in addition, the middle part of take-up roller 2 is provided with take-up groove 203,
The situation that steel wire rope 9 slides occurs when can prevent take-up, serves protective action, then by fastening hole 201 by guide shaft 202
Fastened with the fixed card buckle 801 on the top of standing screw 8, serve fixation, and do not influence the take-up of take-up roller 2, dropped
Low resistance, the standing screw 8 being provided with by flank 804 by fixing axle 803 through the middle part of support arm 5, then by anti-skidding
Pad 7 is threadedly coupled with clamp nut 6 to flank 804, the situation for preventing standing screw 8 from being fallen off with support arm 5.
Embodiment 2
Fig. 1-Fig. 8 is referred to, the present invention provides a kind of fast releasing apparatus for the experiment of container vertical impact：Described branch
The upper end both sides of brace 5 are provided with installs fixture 10, and described installs fixture 10 includes nut 1001, the first pressing plate 1002, indent
1003rd, fastening screw 1004, the second pressing plate 1005, described indent 1003 are provided with two and are respectively arranged on the first pressing plate 1002 altogether
With the middle inside of the second pressing plate 1005 and the structure that is formed in one, described fastening screw 1004 is provided with two and through first altogether
The both sides of pressing plate 1002 are connected with the both sides of the second pressing plate 1005, and the described top of fastening screw 1004 is provided with nut 1001 and passed through
Threaded connection, the second described pressing plate 1005 are connected with support arm 5 by welding manner.
Steel wire rope 9 of the present invention is according to certain rule by mechanical property and the satisfactory steel wire of physical dimension
The helical form steel tendon being twisted together, steel wire rope is by steel wire, wire rope core and grease composition.Steel wire rope is first to be twisted with the fingers by multilayer steel wire
Into stock, then centered on wire rope core, helically wound rope is twisted with the fingers by certain amount stock.
It is the driving motor 1 of the present invention, take-up roller 2, movable bolt 3, quick release harness 4, support arm 5, clamp nut 6, anti-skidding
Pad 7, standing screw 8, steel wire rope 9, fixed cranse 401, drive link 402, bolt hole 403, rod 404, container suspension hook
405th, pin hole 101, power transmission shaft 102, motor mounting plate 103, mounting hole 104, terminal box 105, body 106, motor shield
107th, fastening hole 201, guide shaft 202, take-up groove 203, cylinder 204, fixed card buckle 801, alignment pin 802, fixing axle 803, screw thread
Face 804, installs fixture 10, nut 1001, the first pressing plate 1002, indent 1003, fastening screw 1004, the second pressing plate 1005, portion
The part that part is universal standard part or those skilled in the art know, its structure and principle all can pass through for this technology personnel
Technical manual learns or known by normal experiment method the present invention solves the problems, such as it is that existing technology can not ensure container
The depth of parallelism at both ends, cause vertical impact contact surface unequal, have impact on test data, the present invention passes through the mutual of above-mentioned part
Combination, ensure that the depth of parallelism of vertical impact contact surface, improves the accuracy of test data significantly, described in detail below：
The described bottom of fixation cranse 401 is located at the upper end of drive link 402 by welding manner, under described drive link 402
End right side is connected with rod 404 by welding manner, and described bolt hole 403 is located at the right side central of rod 404 and is integrated
Molding structure, described container suspension hook 405 is U-shaped structure and groove is located at the right side of rod 404 by welding manner.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Which point therefore, no matter from the point of view of, all should incite somebody to action
Embodiment regards exemplary as, and be it is nonrestrictive, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (8)
1. it is a kind of for container vertical impact experiment fast releasing apparatus, its structure include driving motor (1), take-up roller (2),
Movable bolt (3), quick release harness (4), support arm (5), clamp nut (6), improved mat (7), standing screw (8), steel wire rope
(9), it is characterised in that：
The thread groove of activity installing standing screw (8) is provided with the middle part of described support arm (5), described standing screw (8) is
Columnar structured and top is interlocked with take-up roller (2) bottom, and described driving motor (1) lower end is installed by embedded mode
At the top of take-up roller (2), described quick release harness (4) is provided with two and is installed on support arm by movable bolt (3) respectively altogether
(5) left and right sides, described steel wire rope (9) both ends are connected with quick release harness (4) top and middle part is by wrapping mode located at receipts
In the middle part of line roller (2), described standing screw (8) bottom is threadedly coupled in the middle part of support arm (5) with clamp nut (6), institute
The improved mat (7) stated is circular configuration and is installed between clamp nut (6) and support arm (5)；
Described quick release harness (4) includes fixed cranse (401), drive link (402), bolt hole (403), rod (404), container
Suspension hook (405), described fixation cranse (401) bottom are located at drive link (402) upper end, described drive link by welding manner
(402) it is connected on the right side of lower end with rod (404) by welding manner, described bolt hole (403) is on the right side of rod (404)
Middle part and the structure that is formed in one, described container suspension hook (405) is U-shaped structure and groove is located at by welding manner and chosen
On the right side of bar (404).
A kind of 2. fast releasing apparatus for the experiment of container vertical impact according to claim 1, it is characterised in that：It is described
Driving motor (1) include pin hole (101), power transmission shaft (102), motor mounting plate (103), mounting hole (104), terminal box
(105), body (106), motor shield (107).
A kind of 3. fast releasing apparatus for the experiment of container vertical impact according to claim 2, it is characterised in that：It is described
Pin hole (101) be provided with two or more and be evenly distributed on the left of power transmission shaft (102) and the structure that is formed in one, described biography
On the right side of moving axis (102) by embedded mode on the left of body (106), described body (106) is columnar structured and right side
It is connected with motor shield (107) by fit mode.
A kind of 4. fast releasing apparatus for the experiment of container vertical impact according to claim 2, it is characterised in that：It is described
Terminal box (105) by manner in the middle part of the body (106), described motor mounting plate (103) passes through welding manner
Located at body (106) bottom, described motor mounting plate (103) both sides are provided with mounting hole (104) and the structure that is formed in one, institute
The power transmission shaft (102) stated is connected by pin hole (101) with take-up roller (2).
A kind of 5. fast releasing apparatus for the experiment of container vertical impact according to claim 1, it is characterised in that：It is described
Take-up roller (2) include fastening hole (201), guide shaft (202), take-up groove (203), cylinder (204).
A kind of 6. fast releasing apparatus for the experiment of container vertical impact according to claim 5, it is characterised in that：It is described
Guide shaft (202) be circular configuration with cylinder (204) and be connected by fit mode, described fastening hole (201) is located at
On the left of guide shaft (202) and the structure that is formed in one, described take-up groove (203) are located in the middle part of cylinder (204) and are formed in one
Structure.
A kind of 7. fast releasing apparatus for the experiment of container vertical impact according to claim 1, it is characterised in that：It is described
Standing screw (8) include fixed card buckle (801), alignment pin (802), fixing axle (803), flank (804).
A kind of 8. fast releasing apparatus for the experiment of container vertical impact according to claim 1, it is characterised in that：It is described
Flank (804) and fixing axle (803) be nested the molding structure that merges into a single whole, described fixing axle (803) top passes through weldering
Mode is connect with alignment pin (802) to be connected, described fixed card buckle (801) be circular configuration and with alignment pin (802) at the top of phase
Fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953044.XA CN107572361B (en) | 2017-10-13 | 2017-10-13 | Quick release device for vertical impact test of container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953044.XA CN107572361B (en) | 2017-10-13 | 2017-10-13 | Quick release device for vertical impact test of container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107572361A true CN107572361A (en) | 2018-01-12 |
| CN107572361B CN107572361B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710953044.XA Active CN107572361B (en) | 2017-10-13 | 2017-10-13 | Quick release device for vertical impact test of container |
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| CN (1) | CN107572361B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973210A (en) * | 2018-01-22 | 2018-05-01 | 张家港市盛达冶金吊具制造有限公司 | A kind of metallurgical suspender with lift protection side panel |
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| CN106429810A (en) * | 2016-11-24 | 2017-02-22 | 芜湖新兴铸管有限责任公司 | Electric lifting tool |
| CN106429818A (en) * | 2016-11-24 | 2017-02-22 | 芜湖新兴铸管有限责任公司 | Electric lifting device |
| CN206288856U (en) * | 2016-11-24 | 2017-06-30 | 芜湖新兴铸管有限责任公司 | Electric lifting tool |
| CN106672783A (en) * | 2016-12-16 | 2017-05-17 | 上海大学 | Automatic lifting hook and lifting ring separation and reunion device for lifting |
| CN207596310U (en) * | 2017-10-13 | 2018-07-10 | 常德市武陵区正达厢式冷藏车厢厂 | A kind of fast releasing apparatus for the experiment of container vertical impact |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973210A (en) * | 2018-01-22 | 2018-05-01 | 张家港市盛达冶金吊具制造有限公司 | A kind of metallurgical suspender with lift protection side panel |
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