CN102408059B - Unhooking device - Google Patents
Unhooking device Download PDFInfo
- Publication number
- CN102408059B CN102408059B CN 201110338138 CN201110338138A CN102408059B CN 102408059 B CN102408059 B CN 102408059B CN 201110338138 CN201110338138 CN 201110338138 CN 201110338138 A CN201110338138 A CN 201110338138A CN 102408059 B CN102408059 B CN 102408059B
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- trip mechanism
- mating holes
- stay bearing
- bearing plate
- suspension bracket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides an unhooking device which comprises a fixed lifting bracket and a movable lifting bracket, wherein the fixed lifting bracket comprises a bottom plate and a support plate arranged on the bottom plate, the support plate is provided with a mating hole, the movable lifting bracket comprises a main plate, a lifting device arranged on the main plate and a connecting plate arranged below the main plate, and the connecting plate is provided with a mating hole. The unhooking device also comprises a mating hole which can be inserted into the support plate on the fixed lifting bracket and a plunger of the mating hole on the connecting plate of the movable lifting bracket, as well as a lifting jack which can be arranged on the fixed lifting bracket or the movable lifting bracket, can abut against the top end of the lifting bracket and can push out the mating hole accommodated on the support plate of the fixed lifting bracket and the plunger in the mating hole on the connecting plate of the movable lifting bracket. By adopting the unhooking device, the heavy weight lifted by a crane can be ensured to fall vertically when being unhooked, thus the security of unhooking operation can be improved.
Description
Technical field
The invention relates to instantaneous discharging gear field, and particularly about a kind of trip mechanism.
Background technology
Often need use trip mechanism in the process of the utilization of construction machinery and equipments such as hoisting crane and test, trip mechanism can be realized the unexpected unloading of weight, and operating personal can be near weight, thereby avoids dangerous generation.Existing trip mechanism mostly is the unhook function that realizes trip mechanism by its certain movable part of control pulling with the stability that changes trip mechanism master suspension hook.But Just because of this, existing trip mechanism needs extraneous additional pulling force just can finish in the unhook process, lifting appliance also need bear additional pulling force in the unhook process, and the unhook direction mostly is one-sided side direction greatly and breaks off relations, weight drops and can bear certain side force, cause danger easily, can not satisfy the requirement that construction machinery and equipment uses and tests.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of trip mechanism, can avoid the weight of lifting appliance and crane loading to bear side force effectively, thereby improve the safety of unhook operation.
A kind of trip mechanism of the present invention, described trip mechanism comprises fixedly suspension bracket and travelling cradle, described fixedly suspension bracket comprises base plate, and be arranged on stay bearing plate on the described base plate, offer mating holes at described stay bearing plate, described travelling cradle comprises mainboard, be arranged on the lifting appliance on the described mainboard, and the connecting panel that is arranged on described mainboard below, offer mating holes at described connecting panel, described trip mechanism also comprises the mating holes that can insert on the described fixedly hanger supports plate and the plunger of the mating holes on the described travelling cradle connecting panel, and being arranged on described fixedly suspension bracket or the described travelling cradle, and its support end jack that the plunger that is contained in mating holes on the described fixedly hanger supports plate and the mating holes on the described travelling cradle connecting panel can be ejected.
In one embodiment of the invention, aforesaid trip mechanism also comprises the pinch plate that the connecting panel of the stay bearing plate of described fixedly suspension bracket and described travelling cradle can be fastened togather at described mating holes axial direction.
In one embodiment of the invention, aforesaid trip mechanism comprises two pinch plates, and described pinch plate comprises connecting wall, and vertically extends next clamp in the same way from the connecting wall two ends.
In one embodiment of the invention, aforesaid pinch plate is fixed on the stay bearing plate of described fixedly suspension bracket or is fixed on the connecting panel of described travelling cradle.
In one embodiment of the invention, the lifting appliance of aforesaid travelling cradle has the plane of symmetry, and the contact surface of the connecting panel of the stay bearing plate of described fixedly suspension bracket and described travelling cradle and the described plane of symmetry are coplanar.
In one embodiment of the invention, aforesaid fixedly suspension bracket also comprises the jack pad assembly that is fixed on the described base plate, and described jack is fixed on the described jack pad assembly, and is fixed on the described base plate by described jack pad assembly.
In one embodiment of the invention, aforesaid fixedly suspension bracket also comprises the tailgate that is arranged on the described base plate, described jack pad assembly is arranged between described stay bearing plate and the described tailgate, expose from described jack pad assembly at described jack two ends, an one end i.e. end relative with its support end is replaced described tailgate, and its other end is that its support end is over against the mating holes of described stay bearing plate.
In one embodiment of the invention, the lifting appliance of aforesaid travelling cradle comprises two support plates that are arranged on the described travelling cradle mainboard, and be arranged between described two support plates, and by the rotating suspension ring that are installed on described two support plates of suspension ring axle.
In one embodiment of the invention, aforesaid plunger is the taper cylinder, the mating holes on the described fixedly hanger supports plate, and the mating holes on the described travelling cradle connecting panel is the taper cylindrical hole.
In one embodiment of the invention, aforesaid trip mechanism also comprises the protection rope, and described plunger ties up on described fixedly suspension bracket or the described travelling cradle movably by described protection rope.
The invention has the beneficial effects as follows that adopt the trip mechanism method of operation of the embodiment of the invention easy, applicability is strong, and when breaking off relations, the weight of lifting appliance and crane loading does not all bear side force, can guarantee the weight vertical drop, has improved the safety of unhook operation.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification sheets, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is that the master of the preferred embodiment of trip mechanism of the present invention looks scheme drawing.
Fig. 2 is the schematic top plan view of the preferred embodiment of trip mechanism of the present invention.
Fig. 3 is that scheme drawing is looked on the right side of the preferred embodiment of trip mechanism of the present invention.
Fig. 4 is that the master of base plate, stay bearing plate and the tailgate of the preferred embodiment of trip mechanism of the present invention looks scheme drawing.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the specific embodiment, structure, feature and the effect thereof of a kind of trip mechanism that foundation the present invention is proposed are described in detail as follows:
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of the specific embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, the present invention is limited.
Please refer to Fig. 1, Fig. 2 and shown in Figure 3, the trip mechanism of the embodiment of the invention comprises fixedly suspension bracket 1, travelling cradle 3, and two pinch plates 5.
Please in the lump with reference to shown in Figure 4, fixedly suspension bracket 1 comprises base plate 12, is arranged on stay bearing plate 14, tailgate 16 on the base plate 12, is arranged on the jack pad assembly 18 between stay bearing plate 14 and the tailgate 16, and by the jack 19 of jack pad assembly 18 supports.Base plate 12, stay bearing plate 14 and tailgate 16 are roughly rectangular, have certain thickness tabular body.Two ends at base plate 12 evenly are furnished with some fixed orifices 122 respectively.Stay bearing plate 14 and tailgate 16 generally perpendicularly are arranged on the base plate 12, stay bearing plate 14 and tailgate 16 almost parallel settings, and the certain distance in interval.Offer the mating holes 142 of perforation at stay bearing plate 14, the axis of mating holes 142 is roughly parallel to base plate 12 upper surfaces, and perpendicular to tailgate 16.Mating holes 142 is taper cylindrical holes, and its stomidium footpath towards tailgate 16 is less, and is bigger away from the stomidium footpath of tailgate 16.Stay bearing plate 14 is the boundary with the axis of mating holes 142, and bottom thickness is bigger, and top thickness is less, and namely its not relative with tailgate 16 one side is stepped, is defined as fitting surface 144 here, comprises fitting surface 146 and following fitting surface 148.Also offer fixed orifice (figure is mark not) in stay bearing plate 14 both sides, so that with screw 149 pinch plate 5 is fixed on stay bearing plate 14 both sides.Fixedly the base plate 12 of suspension bracket 1, stay bearing plate 14 and tailgate 16 can be to be made of one piece, and also can be to be welded to each other fixedly by three tabular bodys to form.
Jack 19 is ccontaining and be fixed on by screw 186 in the jack holding part 182 of jack pad assembly 18, and expose from jack holding part 182 at its two ends, the mating holes 142 coaxial settings of jack 19 and stay bearing plate 14.Jack 19 1 ends are replaced tailgate 16, and the other end is over against the mating holes 142 of stay bearing plate 14.
Please refer to illustrated in figures 1 and 2ly, travelling cradle 3 comprises mainboard 30, is arranged at connecting panel 32 and the plunger 34 of mainboard 30 belows, and the lifting appliance that is arranged at mainboard 30 tops, and lifting appliance comprises two support plates 36 and suspension ring 38.Mainboard 30, connecting panel 32 and support plate 36 are roughly rectangular, have certain thickness tabular body.Connecting panel 32 is vertically extended by mainboard 30 lower surfaces, offers the jack 322 of perforation on it, and the axis of jack 322 is roughly parallel to the lower surface of mainboard 30, perpendicular to connecting panel 32.Also be provided with axle bush 324 in the jack 322 of connecting panel 32, axle bush 324 can be the copper hollow tubular body, and it is fixed on the connecting panel 32 by the screw (not shown).Be provided with the mating holes 325 of perforation in the axle bush 324, mating holes 325 is taper cylindrical holes, and its stomidium footpath towards stay bearing plate 14 is less, and is bigger away from the stomidium footpath of stay bearing plate 14.Plunger 34 links together by the lower surface of protection rope 326 with mainboard 30, and plunger 34 is taper cylinders, and namely the one end diameter of axle is less, and the other end diameter of axle is bigger.End face at the bigger end of plunger 34 diameters is provided with snap ring 342.Lower surface at mainboard 30 also is provided with snap ring 302.Protection rope 326 1 ends tie up on the snap ring 302 of mainboard 30 lower surfaces, and the other end ties up on the snap ring 342 on plunger 34 end faces, thereby plunger 34 is fixed on the mainboard 30 movably.Two support plates 36 are vertically extended by mainboard 30 upper surfaces, are parallel to each other and certain distance at interval.Suspension ring 38 are installed between two support plates 36 rotationally by suspension ring axle 382.Suspension ring 38 are cylinder, are provided with annular recess 384 at its outer peripheral face.The mainboard 30 of travelling cradle 3, connecting panel 32 and support plate 36 can be to be made of one piece, and also can be to be welded to each other fixedly by four tabular bodys to form.
The cross section of pinch plate 5 roughly is " C " type, comprises connecting wall 52, and vertically extends next clamp 54 in the same way from connecting wall 52 two ends.Be provided with the screw hole (not shown) at connecting wall 52, by screw 149 pinch plate 5 is fixed on the stay bearing plate 14 of fixing suspension bracket 1.
Concrete installation and the using method of the trip mechanism of the embodiment of the invention are described in detail in detail below.
At first fixedly suspension bracket 1 is fixed on the weight that need sling by hoisting crane, because fixedly the base plate 12 of suspension bracket 1 is provided with fixed orifice 122, can base plate 12 be fixed on the weight center of top position that need sling or pass its center of gravity by screw or bolt etc., and with Hydraulically Operated Equipment, for example be that the hydraulic tubing of the Hydraulically Operated Equipment of hoisting crane is connected on the jack 19 on the fixing suspension bracket 1.Lifting appliance with travelling cradle 3 is hung on the steel rope 7 of hoisting crane then, steel rope 7 can be looped around in the groove 384 of suspension ring 38 peripheries of travelling cradle 3 lifting appliances, and fasten.Generally, this steel rope 7 hangs on the suspension hook of hoisting crane, to realize lifting.
When needs are sling weight with hoisting crane, at first handle hoisting crane, make travelling cradle 3 near the fixedly suspension bracket 1 that is fixed on the weight that to sling by hoisting crane, and make the mating holes 142 on mating holes 325 secured in alignment suspension brackets 1 stay bearing plate 14 of travelling cradle 3 connecting panels 32 jacks 322 internal axle bushings 324, aim at that the back will hang over by the operator that plunger 34 on travelling cradle 3 mainboards 30 inserts the mating holes 325 of travelling cradles 3 axle bushes 324 and fixedly in the mating holes 142 on suspension bracket 1 stay bearing plate 14, and plunger 34 is inserted into the end, namely is inserted into the less end of its diameter and replaces jack 19 towards an end of stay bearing plate 14.At last, by the operator two pinch plates 5 are clipped in the connecting panel 32 of travelling cradle 3 and fixing stay bearing plate 14 both sides of suspension bracket 1 respectively, make the connecting panel 32 of travelling cradle 3 and fixedly the stay bearing plate 14 of suspension bracket 1 be stuck between the clamp 54 of two pinch plates 5, and by the operator two pinch plates 5 are fixed on by screw 149 on the stay bearing plate 14 of fixing suspension bracket 1, namely fixedly the stay bearing plate 14 of suspension bracket 1 and the connecting panel 32 of travelling cradle 3 are fastened togather at the axial direction of mating holes 142 and mating holes 325 pinch plate 5.Like this, namely finished the dead work of lifting operation.This moment travelling cradle 3 tops two support plates 36 and the plane of symmetry of suspension ring 38 and travelling cradle 3 connecting panels, 32 internal axle bushings 324 and the fixing contact surface of suspension bracket 1 stay bearing plate 14, that is the following fitting surface 148 of stay bearing plate 14 is coplanar, and this coplanar requirement mainly is coplanar in order to guarantee steel rope 7 and described contact surface.
When the operator handles hoisting crane and slings weight, the fixedly suspension bracket 1 that hoisting crane is sling travelling cradle 3 and fixed together with travelling cradle 3 by steel rope 7, thus sling weight.Under the effect of gravity, the effect that plunger 34 respectively and fixedly produces power between the connecting panel 32 of the stay bearing plate 14 of suspension bracket 1 and travelling cradle 3, but because it is subjected to force direction and plunger 34 axis normal, plunger 34 can not deviate from the connecting panel 32 of the stay bearing plate 14 of fixing suspension bracket 1 and travelling cradle 3, and weight is along with steel rope 7 is upwards mentioned together.
The trip mechanism of the embodiment of the invention need thrown off, when weight is fallen, by the hydraulic pressure Hydraulically Operated Equipment that operator's operation links to each other with jack 19, make the support end poker piston 34 of jack 19, force plunger 34 to move along its axis direction.In the support end of jack 19 poker piston 34 moves to mating holes 142 on the stay bearing plate 14, when also not stretching out mating holes 142, plunger 34 can withdraw from the mating holes 325 of axle bush 324 on the connecting panel 32, thereby remove the fixedly marriage relation of suspension bracket 1 and travelling cradle 3, again because the connecting panel 32 of travelling cradle 3 and fixedly the stay bearing plate 14 of suspension bracket 1 be stuck between the clamp 54 of two pinch plates 5, weight can only be together with fixedly suspension bracket 1 and pinch plate 5 together with respect to travelling cradle 3 vertical drops.Like this, namely finished the unhook operation.
Because the shape of the mating holes 325 of axle bush 324 is taper on the mating holes 142 of plunger 34 and the stay bearing plate 14 that cooperates with plunger 34 and the connecting panel 32, be easy between them closely cooperate, and when the poker piston 34 of the support end of jack 19, because the support end ejection of jack 19 is the less ends of plunger 34 diameters, plunger 34 is easy to deviate from the mating holes 325 of axle bush 324 on the mating holes 142 of stay bearing plate 14 and the connecting panel 32, thereby reduces the needed propelling thrust of this process.The purpose that protection rope 326 is set is when deviating from the mating holes 325 of plunger 34 axle bush 324 on the mating holes 142 of stay bearing plate 14 and the connecting panel 32, still keeps being suspended on the mainboard 30 of travelling cradle 3, and can not fly out.Fixedly the fitting surface 144 of suspension bracket 1 stay bearing plate 14 is arranged to steppedly, is in order to guarantee that after plunger 34 is deviate from the connecting panel 32 of travelling cradle 3 can successfully break away from pinch plate 5, and avoids the support end of jack 19 to contact with the connecting panel 32 of travelling cradle 3.Two support plates 36 on travelling cradle 3 tops and the plane of symmetry of suspension ring 38 and travelling cradle 3 connecting panels 32 internal axle bushings 324 and the fixing contact surface of suspension bracket 1 stay bearing plate 14, that is the following fitting surface 148 of stay bearing plate 14 is coplanar, make the lifting force of steel rope 7 by travelling cradle 3 and the fixing junction of suspension bracket 1, the lifting force that has reduced steel rope 7 is to fixing suspension bracket 1 moment with the junction generation of plunger 34.
When needing to sling this weight with hoisting crane next time, because pinch plate 5 has been fixed on the stay bearing plate 14 of fixing suspension bracket 1, handling hoisting crane, when making travelling cradle 3 near the fixedly suspension bracket 1 that is fixed on the weight that to sling by hoisting crane, the connecting panel 32 of travelling cradle 3 is inserted between the clamp 54 of the stay bearing plate 14 of fixing suspension bracket 1 and pinch plate 5, and make the mating holes 142 on mating holes 325 secured in alignment suspension brackets 1 stay bearing plate 14 of travelling cradle 3 connecting panels 32 jacks 322 internal axle bushings 324, aim at the back by the operator will hang in the jack 322 that plunger 34 on travelling cradle 3 mainboards 30 inserts travelling cradles 3 connecting panels 32 axle bush 324 and fixedly in the mating holes 142 on suspension bracket 1 stay bearing plate 14, can carry out lifting operation.
Trip mechanism of the present invention be applicable to more dynamic compaction machinery this same weight need be sling continuously, is broken off relations and discharge weight, the machine of the work of slinging.
Like this, adopt the trip mechanism method of operation of the embodiment of the invention easy, applicability is strong, and when breaking off relations, the weight of lifting appliance and lifting does not all bear side force, can guarantee the weight vertical drop, has improved the safety of unhook operation.
Be appreciated that, in the trip mechanism of the embodiment of the invention, at fixing suspension bracket 1 tailgate 16 being set is location for the ease of jack 19, and in other embodiment of trip mechanism of the present invention, tailgate 16 also can omit, jack 19 also can be fixed on by the jack pad assembly 18 of other shape on the base plate 12 of fixing suspension bracket 1, even jack 19 also can not be to be fixed on fixedly on the suspension bracket 1, but be fixed on the travelling cradle 3, as long as the mating holes 142 on the stay bearing plate 14 is aimed in the support end of jack 19, can with plunger 34 from the stay bearing plate 14 mating holes 142 and the mating holes 325 in the axle bush 324 in eject and get final product.Jack 19 is industry fluid pressure type jacks commonly used, and its support end is the end that jack is used to replace weight.
Be appreciated that equally, in other embodiment of trip mechanism of the present invention, the plunger 34 and fixedly mating holes 142 on suspension bracket 1 stay bearing plate 14, the mating holes 325 of travelling cradle 3 connecting panels 32 jacks 322 internal axle bushings 324 can not be tapers also, but cylindrical, can reach technique effect of the present invention equally.Even also can not establish axle bush 324 on the travelling cradle 3, directly with the jack 322 of connecting panel 32 as the mating holes that cooperates with plunger 34.Lifting appliance on travelling cradle 3 mainboards 30 can not be suspension ring 38 also, but is fixed on the device that suspension hook on the mainboard 30 etc. can be sling travelling cradle 3 for hoisting crane.Plunger 34 also can be connected on the base plate 12 of fixing suspension bracket 1, perhaps neither is connected with travelling cradle 3, also is not connected with fixing suspension bracket 1.Pinch plate 5 also can not be to be fixed on the stay bearing plate 14 of fixing suspension bracket 1, but is fixed on the connecting panel 32 of travelling cradle 3.
The above, only be embodiments of the invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (11)
1. trip mechanism, it is characterized in that, described trip mechanism comprises fixedly suspension bracket and travelling cradle, described fixedly suspension bracket comprises base plate, and be arranged on stay bearing plate on the described base plate, offer mating holes at described stay bearing plate, described travelling cradle comprises mainboard, be arranged on the lifting appliance on the described mainboard, and the connecting panel that is arranged on described mainboard below, offer mating holes at described connecting panel, described trip mechanism also comprises the mating holes that can insert on the described fixedly hanger supports plate and the plunger of the mating holes on the described travelling cradle connecting panel, and is arranged on the described fixedly suspension bracket, and its support end is over against the mating holes of described stay bearing plate, can replace the mating holes and the interior plunger of the mating holes on the described travelling cradle connecting panel that are contained on the described fixedly hanger supports plate, and with its jack that ejects; The face that the stay bearing plate of described fixedly suspension bracket is relative with the connecting panel of described travelling cradle is fitting surface; Described fitting surface is stepped, is the boundary with the axis of described mating holes, and described fitting surface bottom is for contacting the following fitting surface of described connecting panel, and described fitting surface top is for contacting the last fitting surface of described connecting panel.
2. trip mechanism according to claim 1 is characterized in that: described jack and the coaxial setting of the mating holes of described stay bearing plate.
3. trip mechanism according to claim 1 is characterized in that: described trip mechanism also comprises the pinch plate that the connecting panel of the stay bearing plate of described fixedly suspension bracket and described travelling cradle can be fastened togather at described mating holes axial direction.
4. trip mechanism according to claim 3, it is characterized in that: described trip mechanism comprises two pinch plates, and described pinch plate comprises connecting wall, and vertically extends the clamp that comes in the same way from the connecting wall two ends.
5. trip mechanism according to claim 4 is characterized in that: described pinch plate is fixed on the stay bearing plate of described fixedly suspension bracket or is fixed on the connecting panel of described travelling cradle.
6. trip mechanism according to claim 1, it is characterized in that: the lifting appliance of described travelling cradle has the plane of symmetry, and the contact surface of the connecting panel of the stay bearing plate of described fixedly suspension bracket and described travelling cradle and the described plane of symmetry are coplanar.
7. trip mechanism according to claim 1, it is characterized in that: described fixedly suspension bracket also comprises the jack pad assembly that is fixed on the described base plate, and described jack is fixed on the described jack pad assembly, and is fixed on the described base plate by described jack pad assembly.
8. trip mechanism according to claim 7, it is characterized in that: described fixedly suspension bracket also comprises the tailgate that is arranged on the described base plate, described jack pad assembly is arranged between described stay bearing plate and the described tailgate, expose from described jack pad assembly at described jack two ends, an one end i.e. end relative with its support end is replaced described tailgate, and its other end is that its support end is over against the mating holes of described stay bearing plate.
9. trip mechanism according to claim 1, it is characterized in that: the lifting appliance of described travelling cradle comprises two support plates that are arranged on the described travelling cradle mainboard, and be arranged between described two support plates, and by the rotating suspension ring that are installed on described two support plates of suspension ring axle.
10. trip mechanism according to claim 1, it is characterized in that: described plunger is the taper cylinder, the mating holes on the described fixedly hanger supports plate, and the mating holes on the described travelling cradle connecting panel is the taper cylindrical hole.
11. trip mechanism according to claim 1 is characterized in that: described trip mechanism also comprises the protection rope, and described plunger ties up on described fixedly suspension bracket or the described travelling cradle movably by described protection rope.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110338138 CN102408059B (en) | 2011-10-31 | 2011-10-31 | Unhooking device |
| PCT/CN2012/082096 WO2013063992A1 (en) | 2011-10-31 | 2012-09-26 | Hook-releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110338138 CN102408059B (en) | 2011-10-31 | 2011-10-31 | Unhooking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102408059A CN102408059A (en) | 2012-04-11 |
| CN102408059B true CN102408059B (en) | 2013-08-28 |
Family
ID=45910468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110338138 Active CN102408059B (en) | 2011-10-31 | 2011-10-31 | Unhooking device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102408059B (en) |
| WO (1) | WO2013063992A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408059B (en) * | 2011-10-31 | 2013-08-28 | 中联重科股份有限公司 | Unhooking device |
| CN103048156B (en) * | 2013-01-15 | 2015-11-18 | 锦州万达矿山机器制造有限公司 | Unhook test detacher |
| CN105066795B (en) * | 2015-07-03 | 2016-12-07 | 北京航天发射技术研究所 | A kind of adapter rotates docking Automatic-falling retracting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201151610Y (en) * | 2007-11-20 | 2008-11-19 | 中国船舶重工集团公司第七一○研究所 | Releasing device for hoisting |
| CN201610347U (en) * | 2010-02-08 | 2010-10-20 | 施尧尧 | Unlocking and locking device of lifting appliance |
| CN101973483A (en) * | 2010-09-26 | 2011-02-16 | 江苏省电力设计院 | Tong-type automatic unhooking device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5470555A (en) * | 1977-11-16 | 1979-06-06 | Hitachi Ltd | Pin releasing apparatus |
| JPH01169589U (en) * | 1988-05-20 | 1989-11-30 | ||
| AU632226B2 (en) * | 1990-05-11 | 1992-12-17 | Totetu Mfg. Co., Ltd. | Dismounting device for heavy load hoisting member |
| JP2694098B2 (en) * | 1993-01-29 | 1997-12-24 | 戸田建設株式会社 | How to install heavy objects |
| JP2000026068A (en) * | 1998-07-08 | 2000-01-25 | Giken Seisakusho Co Ltd | Hanging holder |
| CN101736729B (en) * | 2009-12-28 | 2011-04-27 | 中化岩土工程股份有限公司 | Lifting mechanism of free dropping type forced ramming machine with hammer |
| CN201737583U (en) * | 2010-07-09 | 2011-02-09 | 宝山钢铁股份有限公司 | Automatic decoupling device of chain spreader |
| CN102408059B (en) * | 2011-10-31 | 2013-08-28 | 中联重科股份有限公司 | Unhooking device |
-
2011
- 2011-10-31 CN CN 201110338138 patent/CN102408059B/en active Active
-
2012
- 2012-09-26 WO PCT/CN2012/082096 patent/WO2013063992A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201151610Y (en) * | 2007-11-20 | 2008-11-19 | 中国船舶重工集团公司第七一○研究所 | Releasing device for hoisting |
| CN201610347U (en) * | 2010-02-08 | 2010-10-20 | 施尧尧 | Unlocking and locking device of lifting appliance |
| CN101973483A (en) * | 2010-09-26 | 2011-02-16 | 江苏省电力设计院 | Tong-type automatic unhooking device |
Non-Patent Citations (3)
| Title |
|---|
| JP平1-169589U 1989.11.30 |
| JP昭54-70555A 1979.06.06 |
| JP特开2000-26068A 2000.01.25 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013063992A1 (en) | 2013-05-10 |
| CN102408059A (en) | 2012-04-11 |
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