CN203845727U - Safety tower crane - Google Patents
Safety tower crane Download PDFInfo
- Publication number
- CN203845727U CN203845727U CN201420253640.9U CN201420253640U CN203845727U CN 203845727 U CN203845727 U CN 203845727U CN 201420253640 U CN201420253640 U CN 201420253640U CN 203845727 U CN203845727 U CN 203845727U
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- cable
- frame plate
- lifting rope
- rope
- porcelain wheel
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Abstract
The utility model relates to a safety tower crane which comprises a tower body, a support seat and a tower cap, wherein a hanging arm is arranged on the support seat, a hanging rope is arranged on one end part of the hanging arm, a lifting device is connected to the lower part of the hanging rope, a balance arm is arranged on the opposite side of the hanging arm, and a balance weight is arranged on one end part of the balance arm; a lifting cable is arranged along the tower body, and the cable is connected with the tower body by virtue of a cable fixing device at an altitude of three to ten standard knots; the cable fixing device comprises a frame plate, wherein one side of the frame plate is fixed on a cross beam by virtue of a hoop, a one-way ceramic wheel is installed at one side in the frame plate by virtue of a fixed shaft, a compaction ceramic wheel is installed on the side opposite to the side on which the one-way ceramic wheel is arranged, and a cable channel is formed between the one-way ceramic wheel and the compaction ceramic wheel; the lifting device comprises a lifting hook and a lifting hook seat, wherein pulleys which are matched with the hanging rope are arranged on both sides of the inner bottom of the lifting hook seat, fixed brackets are arranged on both sides of the lifting hook seat, and a rope breaking trigger mechanism and a brake mechanism are arranged on the inlet side of the hanging rope from top to bottom. By using the safety tower crane, the service life of the cable can be prolonged, the object falling from high altitudes is avoided, and the on-site safety is guaranteed.
Description
Technical field
The utility model relates to a kind of safe tower crane, belongs to vehicle for construction field.
Background technology
Tower crane is transportation device important in engineering construction, and along with China's expanding economy, high level and high-rise building are more and more, and the height of tower crane is also more and more higher.At present, there is the potential safety hazard of two aspects in tower crane hoisting crane, the one, along with the increase of tower crane height, tower crane is also more and more longer with the length of electric cable, and along with the increase of cable deadweight, the pulling force that cable bears is very large, and a lot of random cables do not have corresponding anchor fitting at present, under the factor impacts such as deadweight and wind, cable is easy to rupture, and to construction, brings potential safety hazard.The 2nd, along with the period of service growth of tower crane, steel rope easily occurs aging, and in the process of lift heavy, the phenomenon of fracture appears in steel rope sometimes.Existing tower crane comprises steel rope, pulley, suspension hook; corresponding rope broken protector is not set; once there is steel rope one side fracture, one end of disconnection will be along the rapid slippage of pulley, and the weight of falling from high altitude is by serious threat site operation personnel's personal safety and property safety.
Utility model content
According to above the deficiencies in the prior art, the purpose of this utility model is: a kind of safe tower crane is provided, in the time of the random cable of support, can freely rise with the rising of tower machine, improve cable service life, when fracture occurs the lifting rope of lifting appliance, can brake in time simultaneously, avoid occurring falling object from high altitude, guarantee site safety.
Tower crane wire fixing device described in the utility model, comprise tower body, supporting seat, tower cap, supporting seat is provided with arm, arm end is provided with lifting rope, lifting rope below connecting hoisting device, arm offside is provided with equilibrium arm, equilibrium arm end is provided with counterweight, along tower body, be provided with rising cable, 3～10 standard knots of the every rising of cable, by a wire fixer, be connected with tower body, wire fixer comprises frame plate, frame plate one side is fixed on crossbeam by hoop, one unidirectional porcelain wheel is arranged on the inner side of frame plate by anchor shaft, its opposite side is provided with and compresses porcelain wheel, between unidirectional porcelain wheel and compression porcelain wheel, form cable passage, unidirectional porcelain wheel is provided with ratchet near the cylindrical at two ends, ratchet be arranged on the click-fit on frame plate, ratchet one end is hinged on fixed knot, compressing porcelain wheel is slidably mounted on frame plate by anchor shaft, between its two sliding end and frame plate, support spring is housed, lifting appliance comprises suspension hook, suspension hook seat, suspension hook seat inner bottom part both sides are provided with the pulley coordinating with lifting rope, suspension hook seat both sides are provided with fixed support, the side of entering of lifting rope arranges disconnected rope trigger mechanism and braking mechanism from top to bottom, disconnected rope trigger mechanism comprises the pinch roller coordinating with lifting rope, pinch roller connects a pipe link by pinch roller support, on pipe link, cover has Compress Spring, Compress Spring one end is connected with the pressing plate being fixed on pipe link, the other end is connected with guide holder inner side, pipe link passes guide holder and connects a movable guide card away from one end of pinch roller, the guide holder outside corresponding with movable guide card is provided with non-conduction fixedly guide card, fixedly guide card is connected with battery component and electromagnetic valve respectively by wire, electromagnetic valve connects band-type brake by control assembly.
By wire fixer is set, make cable at a certain distance be bound in tower body place, make cable gravity segment bearing, avoid rupturing.Wherein, be arranged on the ratchet of unidirectional porcelain wheel along same circumferential rotation, when cable rises, unidirectional porcelain wheel left-hand revolution, ratchet is inoperative, when cable is slack, ratchet is stuck in the end of hook tooth, limits the contrarotation of unidirectional porcelain wheel, by unidirectional porcelain wheel, coordinates with compression porcelain wheel, cable is blocked, cable is played to support.Unidirectional porcelain wheel all adopts insulating ceramics to make with compressing porcelain wheel, avoids cable to cross quick-wearing, even if cable electric leakage simultaneously also can be played insulating effect, avoids causing safety misadventure.In lifting appliance, the two ends of pinch roller are slidably mounted on suspension hook seat, corresponding suspension hook seat is provided with chute, by pinch roller is set, when lifting rope normally passes through, pinch roller pressurized, thus by pressing plate, make spring pressurized produce elastic force, the movable guide card of pipe link end is open simultaneously, avoids and fixedly guide card connection; When lifting rope skids off, the elastic force by Compress Spring ejects pinch roller, and the movable guide card of pipe link end contacts with the fixedly guide card on guide holder simultaneously, and circuit is switched on, and electromagnetic valve moves band-type brake by control assembly, thereby will break to restrict, embraces, and avoids landing.
The anchor shaft two ends of described compression porcelain wheel are connected with slide block through frame plate, slide block is arranged on the slide rail of frame plate, along slide block direction of slip, support spring is housed, support spring one end is connected with slide block, the other end is fixed on frame plate, when cable is installed, promote backward to compress porcelain wheel, compressing porcelain wheel moves on slide rail by slide block, pack into after cable, compressing porcelain wheel presses down on cable in the effect of support spring elastic force, cable is played to support effect, support spring has self-regulation ability simultaneously, when cable adipping pulls, support spring by compression, cable is by increasing, avoid rigid compression to cause damage to cable.
Described unidirectional porcelain wheel, the middle part of compression porcelain wheel are the thick dumb-bell shape in middle thin two, and cable is loaded to waist, avoid cable to skid off, good positioning effect.
Described unidirectional porcelain wheel one section of thinner edge of mid diameter is circumferentially with the friction layer that strengthens friction, and friction layer is comprised of some semicircle small embossments, by friction layer, increases the static friction force between cable and unidirectional porcelain wheel, plays better carrying effect.
Described frame plate is that a side is provided with the three-back-shaped of opening, and breach spacing is greater than cable diameter, and cable can be entered smoothly.
Described both sides, hoop upper end are provided with the two auxiliary plates that are connected with frame plate, by auxiliary plate, make frame plate and beam surface upper keep vertical, make cable vertical.
Described fixed support is provided with and the pinch roller wheel that is relatively fixed, and tight pulley and pinch roller clamp lifting rope jointly, and the friction force when reducing lifting rope and normally hanging thing, reduces consumption of power.
Described control assembly comprises the push rod being connected with band-type brake, on push rod, cover has band-type brake spring, band-type brake spring one end is connected with the block seat rear side being fixed on push rod, the other end is against on control assembly pedestal, one backing pin is stuck in block seat front side, and backing pin is connected with electromagnetic valve, and solenoid control backing pin is opened, rapidly push rod is released with the band-type brake spring of compression, thereby made band-type brake action.
Described band-type brake is comprised of two brake linings, and two brake lining one end are hinged, and wherein the non-pin jointed end of a brake lining is connected with push rod, and lifting rope is through between two brake linings, and during action, two brake linings embrace lifting rope in centre, by friction force, stop lifting rope landing.
Described block seat rear side is provided with the guide part of inclination, and corresponding backing pin front side is provided with the guide part of inclination, during reset, by two guide parts, can reset rapidly.
Described lifting rope goes out side disconnected rope trigger mechanism and braking mechanism is set from top to bottom, lifting rope enters side and goes out side disconnected rope trigger mechanism and battery component formation circuit parallel, by setting up circuit parallel, when there is fracture in any one end of lifting rope, as long as the disconnected rope trigger mechanism of this side is triggered, the braking mechanism of both sides moves simultaneously, no matter this breaking-down point is above or below disconnected rope trigger mechanism, must guarantee that at least one group of braking mechanism works, guarantee the reliability of brake.
In wire fixer, frame plate is fixed on the crossbeam of standard knot by two hoops, cable is packed into unidirectional porcelain wheel and compressed the middle thin segment of porcelain wheel by frame plate indentation, there, under the effect of support spring predetermincd tension, cable is compressed, when cable makes progress, unidirectional porcelain wheel is along rotating counterclockwise, ratchet is inoperative, cable can freely rise, when cable is static, ratchet acts on the end face of hook tooth, limit unidirectional porcelain wheel along clockwise rotating, between cable and unidirectional porcelain wheel, by friction of rolling, be converted to static friction force, simultaneously under the effect of friction layer, static friction force increases greatly, cable is played to good support effect.
When lifting rope normally moves, two lateral pressure wheels are subject to the pressure of lifting rope to promote pipe link, make movable guide card and fixedly guide card is separated, while Compress Spring pressurized, when there is fracture in lifting rope, first the lifting rope of a certain side departs from pinch roller, now under the effect of Compress Spring screen resilience, pinch roller ejects, by pipe link drive activity guide card, retract simultaneously and contact with fixing guide card, circuit is switched on, the electromagnetic valve action of both sides, by backing pin pull-up, push rod ejects rapidly under the effect of band-type brake spring, band-type brake is closed a floodgate rapidly, owing to breaking, rope trigger mechanism and braking mechanism leave a segment distance, brake rapidly before lifting rope is deviate from, avoid occurring pendant thing.
Compared with prior art, the beneficial effect the utlity model has is:
Safety tower crane, by wire fixer is set, makes cable at a certain distance be bound in tower body place, makes cable gravity segment bearing, avoids rupturing; Unidirectional porcelain wheel is taken turns with compressing porcelain, and vertical cable is played to good support and position-limiting action, makes cable freely increase with tower machine simultaneously; Extend cable service life, by unidirectional porcelain wheel and the insulating effect that compresses porcelain wheel, improve safety factor; By friction layer is set, strengthen the static friction force of unidirectional porcelain wheel and cable, improve support effect; In lifting appliance, by disconnected rope trigger mechanism and braking mechanism are set, when fracture occurs steel rope, can brake in time, avoid occurring falling object from high altitude, guarantee site safety.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is wire fixer structural representation;
The unidirectional porcelain wheel of Fig. 3 and click-fit schematic diagram;
Fig. 4 is wire fixer lateral plan;
Fig. 5 is lifting appliance structural representation;
Fig. 6 is lifting appliance schematic circuit diagram.
In figure: 1, tower body; 2, cable; 3, wire fixer; 4, supporting seat; 5, counterweight; 6, equilibrium arm; 7, tower cap; 8, arm; 9, lifting rope; 10, lifting appliance; 11, frame plate; 12, crossbeam; 13, auxiliary plate; 14, hoop; 15, fixed knot; 16, ratchet; 17, ratchet; 18, unidirectional porcelain wheel; 19, slide block; 20, support spring; 21, slide rail; 22, compress porcelain wheel; 23, anchor shaft; 24, suspension hook; 25, pulley; 26, suspension hook seat; 27, fixed support; 28, tight pulley; 29, pinch roller; 30, pinch roller support; 31, pressing plate; 32, Compress Spring; 33, guide holder; 34, movable guide card; 35, fixing guide card; 36, pipe link; 37, electromagnetic valve; 38, band-type brake; 39, backing pin; 40, block seat; 41, band-type brake spring; 42, push rod; 43, battery component.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, safety tower crane comprises tower body 1, supporting seat 4, tower cap 7, supporting seat 4 is provided with arm 8, arm 8 ends are provided with lifting rope 9, lifting rope 9 below connecting hoisting devices 10, arm 8 offsides are provided with equilibrium arm 6, equilibrium arm 6 ends are provided with counterweight 5, along tower body 1, be provided with rising cable 2,3～10 standard knots of the every rising of cable 2, are connected with tower body 1 by a wire fixer 3, make cable 2 at a certain distance be bound in tower body 1 place, make cable 2 gravity segment bearings, avoid rupturing.
As shown in Figure 2, wire fixer 3 comprises frame plate 11, frame plate 11 1 sides are fixed on crossbeam 12 by hoop 14, the upper and lower side of hoop 14 is bolted on respectively on frame plate 11, hoop 14 both sides, upper end are provided with two auxiliary plates 13, two auxiliary plates 13 are fixedly connected with frame plate 11, by two auxiliary plates 13, make frame plate 11 vertical with crossbeam 12 upper surfaces, thereby cable is kept vertically.One unidirectional porcelain wheel 18 is arranged on the inner side of frame plate 11 by anchor shaft 23, its opposite side is provided with and compresses porcelain wheel 22, between unidirectional porcelain wheel 18 and compression porcelain wheel 22, form cable passage, unidirectional porcelain wheel 18, compression porcelain wheel 22 all adopt insulating ceramics to make, both middle parts are the thick dumb-bell shape in middle thin two, and cable 2 is arranged between two thin segments.Unidirectional porcelain is taken turns one section of edge that 18 mid diameters are thinner and is circumferentially with the friction layer that strengthens friction, and friction layer is comprised of some semicircle small embossments.Frame plate 11 is that a side is provided with the three-back-shaped of opening, and breach spacing is greater than cable 2 diameters, and cable 2 is packed into by this breach.
As shown in Figure 3, unidirectional porcelain wheel 18 cylindricals near two ends are provided with ratchet 17, the end face of ratchet 17 is along circumferentially towards unanimously, and coordinate with one end of ratchet 16, this cooperation makes unidirectional porcelain take turns 18 can only be around backwards rotation, the other end of ratchet 16 is hinged on fixed knot 15, and fixed knot 15 is fixed on frame plate 11.
As shown in Figure 4, compressing porcelain wheel 22 is slidably mounted on frame plate 11 by anchor shaft 23, anchor shaft 23 two ends that compress porcelain wheel 22 are connected with slide block 19 through frame plate 11, slide block 19 is arranged on the slide rail 21 of frame plate 11, and slide block 19 is provided with through hole, is perforate in the middle of slide rail 21, so that anchor shaft 23 passes through, along slide block 19 direction of slips, support spring 20 is housed, support spring 20 one end are connected with slide block 19, and the other end is fixed on frame plate 11.
As shown in Figure 5, lifting appliance 10 comprises suspension hook 24, suspension hook seat 26, suspension hook seat 26 inner bottom part both sides are provided with the pulley 25 coordinating with lifting rope 9, suspension hook seat 26 both sides are provided with fixed support 27, entering side and going out side of lifting rope 9 all arranges disconnected rope trigger mechanism and braking mechanism from top to bottom, disconnected rope trigger mechanism comprises the pinch roller 29 coordinating with lifting rope 9, pinch roller 29 connects a pipe link 36 by pinch roller support 30, on pipe link 36, cover has Compress Spring 32, Compress Spring 32 one end are connected with the pressing plate 31 being fixed on pipe link 36, the other end is connected with guide holder 33 inner sides, pipe link 36 passes guide holder 33 and connects a movable guide card 34 away from one end of pinch roller 29, guide holder 33 outsides corresponding with movable guide card 34 are provided with non-conduction fixedly guide card 35, pinch roller 29 is subject under lifting rope 9 oppression states, movable guide card 34 and fixedly guide card 35 leave certain distance, this distance is less than the diameter of lifting rope 9.Fixed support 27 is provided with and pinch roller 29 wheel 28 that is relatively fixed, and tight pulley 28 and the common clamping lifting rope 9 of pinch roller 29, reduce the friction drag under the normal work of lifting rope 9.Fixedly guide card 35 is connected with battery component 43 and electromagnetic valve 37 respectively by wire, and electromagnetic valve 37 connects band-type brake 38 by control assembly.Control assembly comprises the push rod 42 being connected with band-type brake 38, band-type brake 42 is comprised of two brake linings, two brake lining one end are hinged, wherein the non-pin jointed end of a brake lining is connected with push rod 42, lifting rope 9 is through between two brake linings, on push rod 42, cover has band-type brake spring 41, band-type brake spring 41 one end are connected with block seat 40 rear sides that are fixed on push rod 42, the other end is against on control assembly pedestal, one backing pin 39 is stuck in block seat 40 front sides, backing pin 39 is connected with electromagnetic valve 37, block seat 40 rear sides are provided with the guide part of inclination, corresponding backing pin 39 front sides are provided with the guide part of inclination, by two guide parts are convenient, reset.
As shown in Figure 6, after the electromagnetic valve of two braking mechanisms 37 is in parallel, connects with the disconnected rope trigger mechanism of both sides parallel connection, when the disconnected rope trigger mechanism conducting of any side, two electromagnetic valves 37 all move, and have guaranteed the reliability braking.
Principle of work:
By frame plate 11 indentation, there, pack cable 2 into unidirectional porcelain wheel 18 and the middle thin segment that compresses porcelain wheel 22, under support spring 20 predetermincd tension effects, cable 2 is compressed, when cable 2 makes progress, unidirectional porcelain wheel 22 is along rotating counterclockwise, ratchet 16 is inoperative, cable 2 can freely rise, when cable 2 is static, ratchet 16 acts on the end face of hook tooth, limit unidirectional porcelain wheel 18 along clockwise rotating, between cable 2 and unidirectional porcelain wheel 18, by friction of rolling, be converted to static friction force, simultaneously under the effect of friction layer, static friction force increases greatly, cable 2 is played to good support effect.
During lifting rope 9 normal operation, two lateral pressure wheels 29 are subject to the pressure of lifting rope 9 to promote pipe link 36, make movable guide card 34 and fixedly guide card 35 is separated, while Compress Spring 32 pressurizeds, when there is fracture in lifting rope 9, first the lifting rope 9 of a certain side departs from pinch roller 29, now under the effect of Compress Spring 32 screen resiliences, pinch roller 29 ejects, by pipe link 36 drive activity guide cards 34, retract simultaneously and contact with fixing guide card 35, circuit is switched on, electromagnetic valve 37 actions of both sides, by backing pin 39 pull-ups, push rod 42 ejects rapidly under the effect of band-type brake spring 41, band-type brake 38 is closed a floodgate rapidly, owing to breaking, rope trigger mechanism and braking mechanism leave a segment distance, brake rapidly before lifting rope 9 is deviate from, avoid occurring pendant thing.
Claims (6)
1. a safe tower crane, comprise tower body (1), supporting seat (4), tower cap (7), supporting seat (4) is provided with arm (8), arm (8) end is provided with lifting rope (9), lifting rope (9) below connecting hoisting device (10), arm (8) offside is provided with equilibrium arm (6), equilibrium arm (6) end is provided with counterweight (5), along tower body (1), be provided with rising cable (2), it is characterized in that: 3～10 standard knots of the every rising of cable (2), by a wire fixer (3), be connected with tower body (1), wire fixer (3) comprises frame plate (11), frame plate (11) one sides are fixed on crossbeam (12) by hoop (14), one unidirectional porcelain wheel (18) is arranged on the inner side of frame plate (11) by anchor shaft (23), its opposite side is provided with and compresses porcelain wheel (22), between unidirectional porcelain wheel (18) and compression porcelain wheel (22), form cable passage, unidirectional porcelain wheel (18) is provided with ratchet (17) near the cylindrical at two ends, ratchet (17) coordinates with the ratchet (16) being arranged on frame plate (11), ratchet (16) one end is hinged on fixed knot (15), compressing porcelain wheel (22) is slidably mounted on frame plate (11) by anchor shaft (23), between its two sliding end and frame plate (11), support spring (20) is housed, lifting appliance comprises suspension hook (24), suspension hook seat (26), suspension hook seat (26) inner bottom part both sides are provided with the pulley (25) coordinating with lifting rope (9), suspension hook seat (26) both sides are provided with fixed support (27), the side of entering of lifting rope (9) arranges disconnected rope trigger mechanism and braking mechanism from top to bottom, disconnected rope trigger mechanism comprises the pinch roller (29) coordinating with lifting rope (9), pinch roller (29) connects a pipe link (36) by pinch roller support (30), the upper cover of pipe link (36) has Compress Spring (32), Compress Spring (32) one end is connected with the pressing plate (31) being fixed on pipe link (36), the other end is connected with guide holder (33) inner side, pipe link (36) passes guide holder (33) and connects a movable guide card (34) away from one end of pinch roller (29), guide holder (33) outside corresponding with movable guide card (34) is provided with non-conduction fixedly guide card (35), fixedly guide card (35) is connected with battery component (43) and electromagnetic valve (37) respectively by wire, electromagnetic valve (37) connects band-type brake (38) by control assembly.
2. safe tower crane according to claim 1, it is characterized in that: anchor shaft (23) two ends of described compression porcelain wheel (22) are connected with slide block (19) through frame plate (11), slide block (19) is arranged on the slide rail (21) of frame plate (11), along slide block (19) direction of slip, support spring (20) is housed, support spring (20) one end is connected with slide block (19), and the other end is fixed on frame plate (11).
3. safe tower crane according to claim 1, is characterized in that: described unidirectional porcelain wheel (18), the middle part of compression porcelain wheel (22) are the thick dumb-bell shape in middle thin two.
4. safe tower crane according to claim 1, it is characterized in that: described fixed support (27) is provided with and pinch roller (29) wheel (28) that is relatively fixed, and tight pulley (28) clamps lifting rope (9) jointly with pinch roller (29).
5. safe tower crane according to claim 1, it is characterized in that: described control assembly comprises the push rod (42) being connected with band-type brake (38), the upper cover of push rod (42) has band-type brake spring (41), band-type brake spring (41) one end is connected with block seat (40) rear side being fixed on push rod (42), the other end is against on control assembly pedestal, one backing pin (39) is stuck in block seat (40) front side, and backing pin (39) is connected with electromagnetic valve (37).
6. according to the safe tower crane described in claim 4 or 5, it is characterized in that: described lifting rope (9) goes out side disconnected rope trigger mechanism and braking mechanism are set from top to bottom, lifting rope (9) enters side and goes out side disconnected rope trigger mechanism and battery component formation circuit parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253640.9U CN203845727U (en) | 2014-05-16 | 2014-05-16 | Safety tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253640.9U CN203845727U (en) | 2014-05-16 | 2014-05-16 | Safety tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203845727U true CN203845727U (en) | 2014-09-24 |
Family
ID=51558768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253640.9U Expired - Fee Related CN203845727U (en) | 2014-05-16 | 2014-05-16 | Safety tower crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN203845727U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395625A (en) * | 2016-11-08 | 2017-02-15 | 芜湖市长江起重设备制造有限公司 | Cantilever crane lifting appliance swing-relieving device capable of preventing wind drag swing |
| CN106688709A (en) * | 2017-03-03 | 2017-05-24 | 骑士（上海）农业技术有限公司 | Side `rolling weight compensation stabilization system |
| CN106809739A (en) * | 2015-11-30 | 2017-06-09 | 邹界 | A kind of special electro-magnetic crane of cargo transport |
| CN107128805A (en) * | 2017-06-12 | 2017-09-05 | 无锡石油化工起重机有限公司 | The derrick crane of Multifunction advertising displaying is installed |
| CN107235422A (en) * | 2017-07-20 | 2017-10-10 | 无锡石油化工起重机有限公司 | It is exclusively used in the crane device of lifting steel pipes and welding |
| CN114732222A (en) * | 2022-04-15 | 2022-07-12 | 戴晓晨 | Self-locking type enclosing desk |
-
2014
- 2014-05-16 CN CN201420253640.9U patent/CN203845727U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106809739A (en) * | 2015-11-30 | 2017-06-09 | 邹界 | A kind of special electro-magnetic crane of cargo transport |
| CN106395625A (en) * | 2016-11-08 | 2017-02-15 | 芜湖市长江起重设备制造有限公司 | Cantilever crane lifting appliance swing-relieving device capable of preventing wind drag swing |
| CN106688709A (en) * | 2017-03-03 | 2017-05-24 | 骑士（上海）农业技术有限公司 | Side `rolling weight compensation stabilization system |
| CN107128805A (en) * | 2017-06-12 | 2017-09-05 | 无锡石油化工起重机有限公司 | The derrick crane of Multifunction advertising displaying is installed |
| CN107235422A (en) * | 2017-07-20 | 2017-10-10 | 无锡石油化工起重机有限公司 | It is exclusively used in the crane device of lifting steel pipes and welding |
| CN114732222A (en) * | 2022-04-15 | 2022-07-12 | 戴晓晨 | Self-locking type enclosing desk |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20150516 |
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| EXPY | Termination of patent right or utility model |