CN114476956B - Hoist and mount hoist safety arrangement - Google Patents
Hoist and mount hoist safety arrangement Download PDFInfo
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- CN114476956B CN114476956B CN202210401121.1A CN202210401121A CN114476956B CN 114476956 B CN114476956 B CN 114476956B CN 202210401121 A CN202210401121 A CN 202210401121A CN 114476956 B CN114476956 B CN 114476956B
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- braking
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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
- B66C15/00—Safety gear
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- Control And Safety Of Cranes (AREA)
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Abstract
The invention relates to the technical field of hoisting cranes, in particular to a safety protection device of a hoisting crane. A safety protection device of a hoisting crane comprises a support, a pulley, a first transmission mechanism, two first tight braking mechanisms, two second tight braking mechanisms, a second transmission mechanism, two push plates and a third transmission mechanism. The first tight mechanism of stopping sets up on the support, including stopping the pole subassembly. Stop rod subassembly includes two hinge posts, two stop rods, telescopic link and two cardboards. The second tight mechanism of stopping includes fixed column, two rotor plates and second drive mechanism. The second transmission mechanism is used for enabling the included angle between the two rotating plates to be enlarged or reduced. The pushing plate is arranged on the bracket and is propped against the right side of the telescopic rod. The third transmission mechanism is used for pushing the pushing plate to move leftwards. The invention provides a safety protection device for a hoisting crane, which aims to solve the problem that a lifting rope is broken to cause safety accidents when an existing hoisting crane lifts heavy objects.
Description
Technical Field
The invention relates to the technical field of hoisting cranes, in particular to a safety protection device of a hoisting crane.
Background
In the production and construction process, hoisting equipment is often needed, a hoisting crane is the most common hoisting tool, and the hoisting crane has the danger of breakage of a hoisting rope in the process of lifting and lowering heavy objects, and is divided into a plurality of situations with considerable danger.
Disclosure of Invention
The invention provides a safety protection device for a hoisting crane, which aims to solve the problem that a lifting rope is broken to cause safety accidents when an existing hoisting crane lifts heavy objects.
The safety protection device for the hoisting crane adopts the following technical scheme: a safety protection device of a hoisting crane comprises a support, a pulley, a first transmission mechanism, two first tight braking mechanisms, two second tight braking mechanisms, a second transmission mechanism, two push plates and a third transmission mechanism. The pulley is rotatably mounted to the bracket. The first transmission mechanism comprises two rotating wheels and two transmission shafts. Two runners set up respectively in the left and right sides of pulley, and every runner rotationally sets up on the support and links to each other with the pulley through a transmission shaft.
The first tight mechanism of stopping sets up on the support, including stopping the pole subassembly. Stop rod subassembly includes two hinge posts, two stop rods, telescopic link and two cardboards. The vertical setting of articulated post is on the support, and joint about two articulated posts, but and relative rotation. A through hole is formed in each hinged column, and the through holes in the upper hinged column and the lower hinged column are arranged in a staggered mode. The brake levers extend in a horizontal direction, and each brake lever is slidably inserted into one of the through holes. Two ends of the telescopic rod are respectively hinged with the right end of one brake rod. Two cardboard set up in the front and back both sides of a runner, and install in the support along fore-and-aft direction slidable, the upper end of every cardboard is connected with half a left portion of stopping the pole, and the stopping pole can be followed the cardboard and slided.
The second tight mechanism of stopping includes fixed column, two rotor plates and second drive mechanism. The fixed column is located the right side of articulated post, and is in between two stop levers. The left end of each rotating plate is hinged to the fixing column, and the right end of each braking rod is slidably arranged along the side wall of one corresponding rotating plate. The second transmission mechanism is used for enabling the included angle between the two rotating plates to be enlarged or reduced. The second transmission mechanism comprises two transmission assemblies, and each transmission assembly comprises a sleeve shaft, a second bevel gear, a first bevel gear, a second rack, a third gear, a third rack, a first gear, a second gear and two first racks. One end of the sleeve shaft is sleeved on the transmission shaft. The second bevel gear is fixedly connected with the sleeve shaft. The first bevel gear is fixedly arranged on the bracket and meshed with the second bevel gear. The second rack is slidably arranged on the bracket. The third gear is rotatably disposed on the bracket. The left end of the second rack is meshed with the first bevel gear, and the right end of the second rack is meshed with the third gear. The third rack is slidably arranged on the bracket and meshed with the third gear. The gear shaft is vertically arranged on the support, the first gear is arranged below the gear shaft, and the second gear is arranged above the gear shaft. The first gear is meshed with the third rack. The two first racks are arranged on the left side and the right side of the second gear and meshed with the second gear. One end of each first rack is connected with the right end of the rotating plate.
The pushing plate is arranged on the bracket and is propped against the right side of the telescopic rod. The third transmission mechanism is used for pushing the pushing plate to move leftwards and comprises two motors and two spiral shafts, the motors are arranged on the support, one end of each spiral shaft is connected with a motor shaft on each motor, and the other end of each spiral shaft is connected with the pushing plate in a spiral mode.
Furthermore, a gasket is arranged on one side, in contact with the rotating wheel, of each clamping plate, a second spring is arranged inside each clamping plate, one end of each second spring is connected with the corresponding clamping plate, and the other end of each second spring abuts against the corresponding gasket.
Further, one end of the sleeve shaft is provided with a sleeve, and a clamping groove is formed in the sleeve. One end of the transmission shaft is provided with a first clamping hole, and a first clamping plate and a first spring are arranged in the first clamping hole. The first clamping plate is used for being clamped in the clamping groove. The first spring is propped against the first clamping plate.
Further, a motor switch is arranged on the support. The rotating wheel is provided with a second clamping hole, and a second clamping plate is arranged in the second clamping hole. The second screens board is used for triggering motor switch.
Furthermore, a hinge groove is arranged on the left half part of the braking rod. The upper end of cardboard is provided with the connector, and the connector sets up in the hinge inslot.
Further, be provided with the spout on the lateral wall of rotor plate, the right-hand member of stopping the pole is provided with the hinge post, and hinge post slidable ground sets up in the spout.
The beneficial effects of the invention are: when the safety protection device for the hoisting crane is used for hoisting a heavy object, if the lifting rope is broken, the braking rods can move leftwards, an included angle formed by the two braking rods is reduced in the process that the braking rods move leftwards, and the included angle is combined with the conical surface formed by the two rotating plates, so that the braking effect is enhanced.
The invention realizes two processes of slow braking and fast braking by utilizing the difference of pulley steering and the reduction of the included angle of the conical surface formed by the two rotating plates when the included angle of the braking rod is reduced in the process of moving leftwards.
The invention utilizes the increase of the rotating speed of the broken pulley of the lifting rope and the increase of the rotating centrifugal force to trigger the driving motor, so that the whole device can be automatically triggered when the lifting rope is broken.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a safety protection device of a hoisting crane according to the invention;
FIG. 2 is a partial top view of an embodiment of a safety protection device for a hoisting crane according to the invention;
FIG. 3 is a partial bottom view of an embodiment of a safety shield for a hoist crane of the present invention;
FIG. 4 is a partial schematic structural view of the embodiment of the safety protection device for a hoisting crane according to the present invention, when the angle between the rotating plates is reduced;
fig. 5 is a partial structural schematic view when the angle between the rotating plates of the safety protection device for a hoisting crane according to the embodiment of the invention is increased;
FIG. 6 is a schematic structural diagram of a braking rod of the safety protection device of the hoisting crane according to the invention;
fig. 7 is a schematic structural diagram of a pulley of the safety protection device of the hoisting crane of the invention.
In the figure: 1. a support; 2. a motor; 3. a screw shaft; 4. a push plate; 5. a telescopic rod; 6. a rotating plate; 7. fixing a column; 8. a brake lever; 81. a hinge slot; 82. connecting holes; 83. a bump; 9. a pulley; 10. a rotating wheel; 101. a first spring; 102. a first clamping plate; 103. a first clamp hole; 104. a drive shaft; 105. a second capture aperture; 11. clamping a plate; 111. a second spring; 12. a first rack; 13. sleeving a shaft; 14. a second rack; 15. a first bevel gear; 16. a second bevel gear; 17. a first fixing lever; 18. a first gear; 181. a second gear; 19. a third gear; 20. a hinged column; 21. a second fixing bar; 22. a third rack; 23. and (6) switching a motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, the safety protection device for the hoisting crane according to the embodiment of the invention comprises a support 1, a pulley 9, a first transmission mechanism, two first tightening braking mechanisms, two second tightening braking mechanisms, a second transmission mechanism, two push plates 4 and a third transmission mechanism.
The pulley 9 is rotatably mounted to the bracket 1. The first transmission comprises two wheels 10 and two drive shafts 104. Two rotating wheels 10 are respectively arranged at the left side and the right side of the pulley 9, and each rotating wheel 10 is rotatably arranged on the bracket 1 and is connected with the pulley 9 through a transmission shaft 104.
The first tight mechanism of stopping sets up on support 1, including stopping the pole subassembly. The stop lever subassembly includes two hinge posts 20, two stop levers 8, telescopic link 5 and two cardboard 11. The hinge columns 20 are vertically arranged on the support 1, and the two hinge columns 20 are clamped up and down and can rotate relatively. Each hinge post 20 is provided with a through hole, and the through holes on the upper hinge post 20 and the lower hinge post 20 are arranged in a staggered manner. The brake levers 8 extend in a horizontal direction, and each brake lever 8 is slidably inserted into one through hole. The right end of the brake rod 8 is provided with a connecting hole 82, and two ends of the telescopic rod 5 are respectively inserted into one connecting hole 82 and hinged with the right end of the brake rod 8. Two cardboard 11 set up in the front and back both sides of a runner 10, and install in support 1 along fore-and-aft direction slidable, and the upper end of every cardboard 11 is connected with half one on the left of the stop lever 8, and the stop lever 8 can be followed cardboard 11 and slided.
The second tight mechanism of stopping includes fixed column 7, two rotor plates 6 and second drive mechanism. The fixed post 7 is on the right side of the hinge post 20 and between the two brake levers 8. The left end of each rotating plate 6 is hinged to the fixing column 7, and the right end of each braking rod 8 is slidably arranged along the side wall of the corresponding rotating plate 6. The second transmission mechanism is used for enabling the included angle between the two rotating plates 6 to be enlarged or reduced. The second transmission mechanism comprises two transmission assemblies, each of which comprises a coupling shaft 13, a second bevel gear 16, a first bevel gear 15, a second rack 14, a third gear 19, a third rack 22, a first gear 18, a second gear 181 and two first racks 12. One end of the sleeve shaft 13 is sleeved on the transmission shaft 104. The second bevel gear 16 is fixedly connected with the sleeve shaft 13. The first bevel gear 15 is fixedly arranged on the bracket 1 and is meshed with the second bevel gear 16. The second rack 14 is slidably disposed on the bracket 1. The third gear 19 is rotatably arranged on the carrier 1. The second rack 14 has a left end engaged with the first bevel gear 15 and a right end engaged with the third gear 19. The third rack 22 is slidably disposed on the bracket 1 and engaged with the third gear 19. The gear shaft is vertically disposed on the bracket 1, the first gear 18 is disposed below the gear shaft, and the second gear 181 is disposed above the gear shaft. The first gear 18 is engaged with the third rack 22. The two first racks 12 are disposed on left and right sides of the second gear 181, and are engaged with the second gear 181. One end of each first rack 12 is connected to the right end of the rotating plate 6. The bracket 1 is further provided with a second fixing rod 21 and a first fixing rod 17, the second fixing rod 21 is used for fixing the first bevel gear 15, and the first fixing rod 17 is used for fixing the second rack 14.
The pushing plate 4 is arranged on the bracket 1 and is propped against the right side of the telescopic rod 5. The third transmission mechanism is used for pushing the pushing plate 4 to move leftwards, the third transmission mechanism comprises two motors 2 and two screw shafts 3, the motors 2 are arranged on the support 1, one end of each screw shaft 3 is connected with a motor shaft on the motor 2, and the other end of each screw shaft is connected with the pushing plate 4 in a screw mode. The motor 2 rotates to drive the screw shaft 3 to rotate through the motor shaft, and the screw shaft 3 rotates to enable the pushing plate 4 to move leftwards.
In the present embodiment, as shown in fig. 1 and 2, a spacer is disposed on one side of each card plate 11 contacting with the wheel 10, a second spring 111 is disposed inside the card plate 11, one end of the second spring 111 is connected to the card plate 11, and the other end of the second spring is abutted against the spacer. The spacers serve to reduce the pressure with the wheel 10 and thereby protect the wheel 10.
In the present embodiment, as shown in fig. 3 and 7, one end of the sleeve shaft 13 is provided with a sleeve, and a clamping groove is provided inside the sleeve. One end of the transmission shaft 104 is provided with a first locking hole 103, and a first locking plate 102 and a first spring 101 are arranged in the first locking hole 103. The first spring 101 abuts against the first locking plate 102. The first locking plate 102 is thrown out by a certain length under the action of centrifugal force and then locked in the locking groove, so that the sleeve shaft 13 rotates along with the transmission shaft 104.
In the present embodiment, as shown in fig. 2 and 7, the stand 1 is provided with a motor switch 23. The rotating wheel 10 is provided with a second clamping hole 105, and a second clamping plate is arranged in the second clamping hole 105. The second blocking plate is thrown out for a certain length under the action of centrifugal force and then triggers the motor switch 23.
In the present embodiment, as shown in fig. 1 and 6, a hinge groove 81 is provided on the left half of the brake lever 8. The upper end of cardboard 11 is provided with the connector, and the connector sets up in articulated groove 81 to make cardboard 11 move to runner 10 when stopping pole 8 moves left.
In this embodiment, as shown in fig. 2 and fig. 6, a sliding slot is disposed on the side wall of the rotating plate 6, a protrusion 83 is disposed at the right end of the braking rod 8, and the protrusion 83 is slidably disposed in the sliding slot, so that the included angle is reduced when the braking rod 8 moves leftwards.
When the invention works, the lifting rope is wound on the pulley 9, one end of the lifting rope is connected with the bracket 1, and the other end of the lifting rope is connected with a heavy object. The crane has the broken possibility of lifting rope when promoting and transferring the heavy object, divides into multiple condition, if B department lifting rope fracture when the hoist promotes the heavy object, because the hoist breaks away from the load this moment, the rotational speed of B upper end pulley 9 can increase suddenly, and the cracked lifting rope of B department can be whipped fast in the space this moment, has certain danger, needs the pulley 9 of stopping fast this moment. When the crane descends a heavy object, if the lifting rope at the position A is broken, the rotating speed of the pulley 9 is suddenly increased under the action of the heavy object, but if the pulley 9 is rapidly braked, the tension of the lifting rope at the position B is suddenly changed, so that the lifting rope at the end B is broken, the heavy object falls and certain danger is caused, and at the moment, the pulley 9 needs to be slowly braked.
When the crane works normally to lift a heavy object, the whole protection device does not work, when a lifting rope at the end B is broken, the pulley 9 rotates clockwise, the rotating speed of the pulley 9 suddenly increases, and the pulley 9 needs to be quickly stopped. At this time, the rotating speed of the rotating wheel 10 increases suddenly, the second clamping plate located in the second clamping hole 105 can be thrown out for a certain length, the second clamping plate rotates together with the rotating wheel 10 after being thrown out, when the second clamping plate rotates to the position of the motor switch 23, the motor switch 23 is triggered, the motor 2 starts to rotate to drive the screw shaft 3 to rotate, the screw shaft 3 rotates to drive the pushing plate 4 to move leftwards, the pushing plate 4 pushes the telescopic rod 5 to move leftwards, namely, the braking rod 8 is pushed to move leftwards, but because the right end of the braking rod 8 is connected with the rotating plate 6 in a sliding mode, the included angle of the braking rod 8 in the process of moving leftwards becomes smaller. The catch plate 11 is pushed to move toward the wheel 10 and compresses the second spring 111, applying a force to the wheel 10 for stopping. At the same time, the accelerated clockwise rotation of the rotating wheel 10 makes the first clamping plate 102 in the transmission shaft 104 throw out a certain length to clamp the clamping groove on the sleeve shaft 13, the sleeve shaft 13 starts to rotate to drive the second bevel gear 16 to rotate, the second bevel gear 16 drives the first bevel gear 15 to rotate, the second rack 14 drives the third gear 19 to rotate, the third rack 22 drives the first gear 18 to rotate, the first gear 18 drives the second gear 181 to rotate, the second gear 181 drives the two first racks 12 to move inwards, so that the two rotating plates 6 approach each other, at this time, the conical surfaces formed by the two rotating plates 6 can be contracted, the integral braking rod 8 moves leftwards to reduce the angle thereof, meanwhile, the contraction of the conical surfaces increases the degree of reducing the angle of the braking rod 8, and meanwhile, in the process that the braking rod 8 moves leftwards, the vertical distance between the braking position is reduced, the braking effect is further enhanced.
When the crane normally works to lower a heavy object, when the lifting rope at the end A is broken, the pulley 9 rotates anticlockwise, the rotating speed of the pulley 9 suddenly increases, and the pulley 9 needs to be quickly stopped. At this moment, the rotating speed of the rotating wheel 10 increases suddenly, the second clamping plate located in the second clamping hole 105 can be thrown out for a certain length and rotates together with the rotating wheel 10 after being thrown out, when the second clamping plate rotates to the position of the motor switch 23, the motor switch 23 is triggered, the motor 2 starts to rotate to drive the screw shaft 3 to rotate, the screw shaft 3 rotates to drive the pushing plate 4 to move leftwards, the pushing plate 4 pushes the telescopic rod 5 to rotate to move leftwards, namely, the braking rod 8 is pushed to move leftwards, but because the right end of the braking rod 8 is connected with the rotating plate 6 in a sliding mode, the included angle of the braking rod 8 in the process of moving leftwards becomes smaller. The catch plate 11 is pushed to move toward the wheel 10 and compresses the second spring 111, applying a force to the wheel 10 for stopping. At the same time, however, the accelerated counterclockwise rotation of the rotating wheel 10 makes the first blocking plate 102 in the transmission shaft 104 throw out, so that it is blocked with the blocking slot on the sleeve shaft 13, the sleeve shaft 13 starts to rotate, the second bevel gear 16 is driven to rotate, the second bevel gear 16 drives the first bevel gear 15 to rotate, the third gear 19 is driven to rotate by the second rack 14, the first gear 18 is driven to rotate by the third rack 22, the second gear 181 is driven to rotate by the first gear 18, the second gear 181 rotates the two first racks 12 to move outwards, so that the two rotating plates 6 are far away from each other, at this time, the conical surfaces formed by the two rotating plates 6 expand, the whole brake rod 8 moves leftwards, the angle of the whole brake rod 8 is increased, meanwhile, the expansion of the conical surface slows down the degree of the angle reduction of the braking rod 8, and at the moment, the degree of the angle reduction of the braking rod 8 is offset by the expansion of the conical surface, so that the braking speed is slow.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a hoist and mount hoist safety arrangement which characterized in that:
the device comprises a bracket, pulleys, a first transmission mechanism, two first braking mechanisms, two second braking mechanisms, a second transmission mechanism, two pushing plates and a third transmission mechanism; the pulley is rotatably arranged on the bracket; the first transmission mechanism comprises two rotating wheels and two transmission shafts; the two rotating wheels are respectively arranged on the left side and the right side of the pulley, and each rotating wheel is rotatably arranged on the bracket and is connected with the pulley through a transmission shaft;
the first braking mechanism is arranged on the bracket and comprises a braking rod assembly; the braking rod assembly comprises two hinge columns, two braking rods, a telescopic rod and two clamping plates; the hinged columns are vertically arranged on the bracket, and the two hinged columns are vertically clamped and can rotate relatively; each hinge column is provided with a through hole, and the through holes on the upper hinge column and the lower hinge column are arranged in a staggered manner; the brake rods extend along the horizontal direction, and each brake rod can be inserted into one through hole in a sliding mode; two ends of the telescopic rod are respectively hinged with the right end of one braking rod; the two clamping plates are arranged on the front side and the rear side of one rotating wheel and are slidably arranged on the bracket along the front-rear direction, the upper end of each clamping plate is connected with the left half part of the braking rod, and the braking rod can slide along the clamping plates;
the second tight mechanism of stopping includes fixed column, two rotating plates and second drive mechanism; the fixed column is positioned on the right side of the hinge column and between the two braking rods; the left end of each rotating plate is hinged to the fixed column, and the right end of each braking rod is slidably arranged along the side wall of one corresponding rotating plate; the second transmission mechanism is used for enabling the included angle between the two rotating plates to be enlarged or reduced; the second transmission mechanism comprises two transmission assemblies, and each transmission assembly comprises a sleeve shaft, a second bevel gear, a first bevel gear, a second rack, a third gear, a third rack, a first gear, a second gear and two first racks; one end of the sleeve shaft is sleeved on the transmission shaft; the second bevel gear is fixedly connected with the sleeve shaft; the first bevel gear is fixedly arranged on the bracket and meshed with the second bevel gear; the second rack is slidably arranged on the bracket; the third gear is rotatably arranged on the bracket; the left end of the second rack is meshed with the first bevel gear, and the right end of the second rack is meshed with the third gear; the third rack is slidably arranged on the bracket and is meshed with the third gear; the gear shaft is vertically arranged on the bracket, the first gear is arranged below the gear shaft, and the second gear is arranged above the gear shaft; the first gear is meshed with the third rack; the two first racks are arranged on the left side and the right side of the second gear and meshed with the second gear; one end of each first rack is connected with the right end of the rotating plate;
the pushing plate is arranged on the bracket and is abutted against the right side of the telescopic rod; the third transmission mechanism is used for pushing the pushing plate to move leftwards and comprises two motors and two spiral shafts, the motors are arranged on the support, one end of each spiral shaft is connected with a motor shaft on each motor, and the other end of each spiral shaft is connected with the pushing plate in a spiral mode.
2. The safety protection device of the hoisting crane according to claim 1, characterized in that:
one side of every cardboard and runner contact is provided with the gasket, and the inside of cardboard is provided with the second spring, and the cardboard is connected to second spring one end, and the other end offsets with the gasket.
3. The safety protection device of the hoisting crane according to claim 1, characterized in that:
one end of the sleeve shaft is provided with a sleeve, and a clamping groove is formed in the sleeve; one end of the transmission shaft is provided with a first clamping hole, and a first clamping plate and a first spring are arranged in the first clamping hole; the first clamping plate is used for being clamped in the clamping groove; the first spring is propped against the first clamping plate.
4. The safety protection device of the hoisting crane according to claim 1, characterized in that:
a motor switch is arranged on the bracket; the rotating wheel is provided with a second clamping hole, and a second clamping plate is arranged in the second clamping hole; the second screens board is used for triggering motor switch.
5. The safety protection device of the hoisting crane according to claim 1, characterized in that:
a hinge groove is arranged on the left half part of the braking rod; the upper end of cardboard is provided with the connector, and the connector sets up in the hinge inslot.
6. The safety protection device of the hoisting crane according to claim 1, characterized in that:
be provided with the spout on the lateral wall of rotor plate, the right-hand member of stopping the pole is provided with the hinge post, and hinge post slidable ground sets up in the spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401121.1A CN114476956B (en) | 2022-04-18 | 2022-04-18 | Hoist and mount hoist safety arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401121.1A CN114476956B (en) | 2022-04-18 | 2022-04-18 | Hoist and mount hoist safety arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114476956A CN114476956A (en) | 2022-05-13 |
| CN114476956B true CN114476956B (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210401121.1A Active CN114476956B (en) | 2022-04-18 | 2022-04-18 | Hoist and mount hoist safety arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114476956B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151123Y (en) * | 1993-02-23 | 1993-12-29 | 聊城市起重机械厂 | Self safety unit of lifting basket for construction |
| CN2444577Y (en) * | 2000-09-30 | 2001-08-29 | 林口仪器工业股份有限公司 | Push-pull two-used miniature brake |
| CN106744446A (en) * | 2016-12-01 | 2017-05-31 | 郑州航空工业管理学院 | The electric block of plant equipment is transported for workshop manufacture scheduling process |
| CN209797336U (en) * | 2019-04-25 | 2019-12-17 | 上海万润达机电科技发展有限公司 | Anti-stall mechanism of window cleaning elevator |
| CN211035003U (en) * | 2019-09-12 | 2020-07-17 | 长江水利委员会水文局荆江水文水资源勘测局（长江水利委员会水文局荆江水环境监测中心） | Self-locking device for lifting ship anchor throwing and winching |
-
2022
- 2022-04-18 CN CN202210401121.1A patent/CN114476956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151123Y (en) * | 1993-02-23 | 1993-12-29 | 聊城市起重机械厂 | Self safety unit of lifting basket for construction |
| CN2444577Y (en) * | 2000-09-30 | 2001-08-29 | 林口仪器工业股份有限公司 | Push-pull two-used miniature brake |
| CN106744446A (en) * | 2016-12-01 | 2017-05-31 | 郑州航空工业管理学院 | The electric block of plant equipment is transported for workshop manufacture scheduling process |
| CN209797336U (en) * | 2019-04-25 | 2019-12-17 | 上海万润达机电科技发展有限公司 | Anti-stall mechanism of window cleaning elevator |
| CN211035003U (en) * | 2019-09-12 | 2020-07-17 | 长江水利委员会水文局荆江水文水资源勘测局（长江水利委员会水文局荆江水环境监测中心） | Self-locking device for lifting ship anchor throwing and winching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114476956A (en) | 2022-05-13 |
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