CN102259783A - Mechanical device stopping in case of overspeed - Google Patents
Mechanical device stopping in case of overspeed Download PDFInfo
- Publication number
- CN102259783A CN102259783A CN2011101332320A CN201110133232A CN102259783A CN 102259783 A CN102259783 A CN 102259783A CN 2011101332320 A CN2011101332320 A CN 2011101332320A CN 201110133232 A CN201110133232 A CN 201110133232A CN 102259783 A CN102259783 A CN 102259783A
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- ratchet
- centering block
- swing arm
- shut down
- hypervelocity
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Abstract
The invention relates to a mechanical device stopping in case of overspeed. The device is arranged on a curved guide rail climbing robot and comprises a floating swing block sleeved on an output shaft of a motor, an angular momentum swing arm arranged on the floating swing block, a ratchet release swing block combination which coaxially rotates with the angular momentum swing arm, an installation seat, a triangular friction wheel arranged on the installation seat, a ratchet component, and a starting connecting rod component, wherein the ratchet component is provided with a notch; the side of the ratchet component, which is close to a combined rail, comprises a ratchet and a smooth curved surface; a first transmission strip is arranged above the angular momentum swing arm and is contacted with the ratchet release swing block combination; a second transmission strip is arranged above the ratchet release swing block combination; a triangular part of the triangular friction wheel is in sliding contact with the second end of the angular momentum swing arm; and a roller part of the triangular friction wheel is tightly attached to a cylindrical rail and rolls along the cylindrical rail. The device can safely brake the curved guide rail climbing robot, has a high safety level and low part processing cost, and is simply and quickly maintained subsequently.
Description
Technical field
The present invention relates to a kind of hypervelocity of the moment of momentum realization safety arrestment of rotating object of utilizing and promptly shut down the tool device.
Background technology
In the prior art, a kind of curvilinear guide climbing robot of the user's of help stair activity is arranged, shown in accompanying drawing 1, the curvilinear guide climbing robot is moved along curvilinear guide by driven by motor.But this curvilinear guide climbing robot actv. solves handicapped people, and for example the elderly's stair activity problem of difficult is widely used in family and rehabilitation, endowment place.
Above-mentioned curvilinear guide climbing robot exists because the danger that the electrical control accident is out of control or situation such as track accidental damage glides the curvilinear guide climbing robot rapidly easily causes user's casualty accident in the process of motion.
Summary of the invention
The purpose of this invention is to provide a kind of hypervelocity of safety arrestment that realizes and promptly shut down the tool device.
For achieving the above object, the technical solution used in the present invention is:
A kind of hypervelocity is promptly shut down the tool device, be installed on the curvilinear guide climbing robot, described curvilinear guide climbing robot comprises motor, be installed on the indent roller on the output shaft of described motor, be installed on the gear on the output shaft of described motor, combined track, described combined track comprises cylindrical rails, the tooth bar that is axially disposed within the one side along described cylindrical rails, described indent roller of described driven by motor and described gear rotate and move along described combined track, described indent roller and described cylindrical rails fit, described gear is meshed with described tooth bar, and described hypervelocity is promptly shut down the tool device and comprised unsteady centering block on the output shaft that is set in described motor, the rotating moment of momentum swing arm that is installed on the described unsteady centering block, be installed on the described unsteady centering block and discharge the centering block combination with the ratchet of described moment of momentum swing arm coaxial rotation, be installed in the mount pad of described unsteady centering block below, be installed on the described mount pad and rotating triangle friction wheel, be installed in the ratchet assemblies on the described indent roller, one end is connected the other end on the described ratchet assemblies and is fixedly connected on startup connecting rod assembly on the described unsteady centering block;
Described ratchet assemblies top is provided with a breach, and a side of the close described combined track of described ratchet assemblies comprises one section ratchet and one section smooth surface;
Described moment of momentum swing arm, described ratchet discharge the centering block combination and comprise first end, second end respectively, the top of described moment of momentum swing arm is provided with along it changes the axial first transmission bar, the described first transmission bar discharges the centering block combination with described ratchet and contacts, and the top that described ratchet discharges the centering block combination is provided with the second transmission bar;
Described triangle friction wheel comprises triangular portions, roller portion, second end moving contact mutually of described triangular portions and described moment of momentum swing arm, and described roller portion is adjacent on described cylindrical rails and along described cylindrical rails and rolls;
Described hypervelocity is promptly shut down the tool device and is comprised first state and second state, when the kinematic velocity of described curvilinear guide climbing robot surpasses predefined value, during described curvilinear guide climbing robot uniform movement, described hypervelocity is promptly shut down the tool device and is in described first state, edge along described triangular portions slides second end of described moment of momentum swing arm with the rotation of described triangle friction wheel, the described second transmission bar is arranged in described breach, and the smooth surface of described ratchet assemblies is near described cylindrical rails; When described curvilinear guide climbing robot hypervelocity is moved; described hypervelocity is promptly shut down the tool device and is in described second state; second end of described moment of momentum swing arm breaks away from the edge of described triangular portions owing to the fast rotational of described triangle friction wheel; the described first transmission bar drives described ratchet and discharges together rotation of centering block combination; the described second transmission bar is by skidding off in the described breach; described ratchet assemblies rotates to described ratchet and contacts with described cylindrical rails, and described curvilinear guide climbing robot is realized safety arrestment by described ratchet.
Preferably, the middle part of described indent roller offers groove, and described ratchet assemblies is arranged in the described groove.
Preferably, described ratchet assemblies comprises ratchet sheet, the ratchet connecting strap that is connected by screw, forms a through hole between described ratchet sheet and the described ratchet connecting strap, and described indent roller is arranged in the described through hole; The close described ratchet that described breach is arranged on described ratchet connecting strap discharges the side that centering block makes up; Described ratchet, described smooth surface are arranged on the below of described ratchet sheet.
Preferably, described mount pad is provided with spring, and described spring is adjacent on described cylindrical rails the roller portion of described triangle friction wheel.
Preferably, described startup connecting rod assembly comprise start connecting rod, with the spring assembly of the perpendicular setting of described startup connecting rod, one end of described startup connecting rod is connected on the described ratchet assemblies, the other end of described startup connecting rod is connected with an end of described spring assembly, and the other end of described spring assembly is fixedly connected on the described unsteady centering block.
Preferably, described unsteady centering block is provided with the first cross track roller, described mount pad is provided with the second cross track roller, the described first cross track roller is adjacent to the top of described cylindrical rails and rotates along described cylindrical rails, and the described second cross track roller is adjacent to the below of described cylindrical rails and rotates along described cylindrical rails.
Preferably, described unsteady centering block is provided with two vertical track rollers, and described vertical track roller is adjacent to the side of described cylindrical rails and rotates along described cylindrical rails.
Preferably, the rotating shaft of described moment of momentum swing arm and described ratchet release centering block combination lays respectively at first end of described moment of momentum swing arm, described ratchet discharges first end that centering block makes up.
Further preferred, first end of described moment of momentum swing arm offers shaft hole, first end that described ratchet discharges the centering block combination is provided with S. A., and described S. A. passes described shaft hole the combination of described ratchet release centering block, described moment of momentum swing arm are installed on the described unsteady centering block.
Preferably, described moment of momentum swing arm, described ratchet discharge the centering block combination and are respectively arranged with counterweight part.
Because the technique scheme utilization, the present invention compared with prior art has following advantage: 1, the present invention can realize the safety arrestment of curvilinear guide climbing robot, has avoided the danger of moving and being brought rapidly, has higher safe class; 2, because the present invention is pure mechanical device, and the part processing cost is lower, be easy to realize, and the later maintenance simple and fast.
Description of drawings
Accompanying drawing 1 is the scheme drawing of curvilinear guide climbing robot.
Accompanying drawing 2 is promptly shut down the decomposing schematic representation of tool device for hypervelocity of the present invention.
Accompanying drawing 3 is promptly shut down the schematic perspective view of tool device for hypervelocity of the present invention.
Accompanying drawing 4 is promptly shut down the schematic perspective view of tool device for hypervelocity of the present invention.
Accompanying drawing 5 is promptly shut down the part schematic perspective view of tool device for hypervelocity of the present invention.
Accompanying drawing 6 is promptly shut down the operating principle scheme drawing of tool device when being in first state for hypervelocity of the present invention.
Accompanying drawing 7 is promptly shut down the operating principle scheme drawing of tool device when being in first state for hypervelocity of the present invention.
Accompanying drawing 8 is promptly shut down the operating principle scheme drawing of tool device when being in second state for hypervelocity of the present invention.
In the above accompanying drawing: 1, motor; 2, indent roller; 3, gear; 4, combined track; 5, cylindrical rails; 6, tooth bar; 7, cover plate mounting screw; 8, gear cover plate; 9, unsteady centering block; 10, moment of momentum swing arm; 11, ratchet discharges the centering block combination; 12, mount pad; 13, triangle friction wheel; 14, ratchet assemblies; 15, start connecting rod assembly; 16, the first cross track roller; 17, the second cross track roller; 18, vertical track roller; 19, screw; 20, ratchet sheet; 21, ratchet connecting strap; 22, through hole; 23, breach; 24, ratchet; 25, smooth surface; 26, shaft hole; 27, S. A.; 28, counterweight part; 29, the first transmission bar; 30, the second transmission bar; 31, spring; 32, triangular portions; 33, roller portion; 34, start connecting rod; 35, spring assembly.
The specific embodiment
Below in conjunction with embodiment shown in the drawings the present invention is further described.
Embodiment one: referring to accompanying drawing 2 to shown in the accompanying drawing 5.
A kind of hypervelocity is promptly shut down the tool device, is installed on the curvilinear guide climbing robot.The curvilinear guide climbing robot comprises motor 1, be installed on indent roller 2 on the output shaft of motor 1, be installed on gear 3, combined track 4 on the output shaft of motor 1.Combined track 4 comprises cylindrical rails 5, along the tooth bar that is axially disposed within the one side 6 of cylindrical rails 5.Motor 1 drive indent roller 2 and gear 3 rotate and move along combined track 4.Indent roller 2 fits with cylindrical rails 5, and gear 3 is meshed with tooth bar 6.The outside of gear 3 is equipped with gear cover plate 8 by cover plate mounting screw 7.
Hypervelocity is promptly shut down the tool device and is comprised unsteady centering block 9 on the output shaft that is set in motor 1; the rotating moment of momentum swing arm 10 that is installed on the centering block 9 that floats; be installed on the centering block 9 that floats and discharge centering block combination 11 with the ratchet of moment of momentum swing arm 10 coaxial rotation; be installed in the mount pad 12 of centering block 9 belows of floating; be installed on the mount pad 12 and rotating triangle friction wheel 13; be installed in the ratchet assemblies 14 on the indent roller 2; one end is connected the other end on the ratchet assemblies 14 and is fixedly connected on startup connecting rod assembly 15 on the centering block 9 that floats.
The centering block 9 that floats is provided with the first cross track roller 16, mount pad 12 is provided with the second cross track roller 17, the first cross track roller 16 is adjacent to the top of cylindrical rails 5 and rotates along cylindrical rails 5, and the second cross track roller 17 is adjacent to the below of cylindrical rails 5 and rotates along cylindrical rails 5.The centering block 9 that floats is provided with two vertical track rollers 18, and vertical track roller 18 is adjacent to the side of cylindrical rails 5 and rotates along cylindrical rails 5.
The middle part of indent roller 2 offers groove, and ratchet assemblies 14 is arranged in the groove.Ratchet assemblies 14 comprises ratchet sheet 20, the ratchet connecting strap 21 that is connected by screw 19.Form a through hole 22 between ratchet sheet 20 and the ratchet connecting strap 21, the groove of indent roller 2 is fastened in the through hole 22.The side that the close ratchet of ratchet connecting strap 21 discharges centering block combination 11 is provided with breach 23; The below of ratchet sheet 20 comprises one section ratchet 24, one section smooth surface 25.
Moment of momentum swing arm 10, ratchet discharge centering block combination 11 and comprise first end, second end respectively, first end of moment of momentum swing arm 10 offers shaft hole 26, first end that ratchet discharges centering block combination 11 is provided with S. A. 27, S. A. 27 pass shaft hole 26 with ratchet discharge centering block combination 11, moment of momentum swing arm 10 is installed on the centering block 9 that floats.The middle part that the middle part of moment of momentum swing arm 10, ratchet discharge centering block combination 11 is respectively arranged with fan-shaped counterweight part 28.The top of moment of momentum swing arm 10 is provided with along the axial first transmission bar 29 of rotation.The first transmission bar 29 discharges centering block combination 11 with ratchet and contacts.The top that ratchet discharges centering block combination 11 is provided with the second transmission bar 30.
Start connecting rod assembly 15 comprise start connecting rod 34, with the spring assembly 35 that starts connecting rod 34 perpendicular settings, an end that starts connecting rod 34 is connected on the ratchet assemblies 14, the other end that starts connecting rod 34 is connected with an end of spring assembly 35, and the other end of spring assembly 35 is fixedly connected on the centering block 9 that floats.
Above-mentioned hypervelocity is promptly shut down the tool device and is comprised first state and second state.
Shown in accompanying drawing 6 and accompanying drawing 7.For example the curvilinear guide climbing robot climbs from left to right along combined track 4.When the kinematic velocity of curvilinear guide climbing robot surpasses predefined value, during curvilinear guide climbing robot uniform movement, hypervelocity is promptly shut down the tool device and is in first state.Edge along triangular portions 32 slides second end of moment of momentum swing arm 10 with the rotation of triangle friction wheel 13, and the second transmission bar 30 is arranged in breach 23, and the smooth surface 25 of ratchet assemblies 14 is near cylindrical rails 5.
Shown in accompanying drawing 8.When the curvilinear guide climbing robot runs into fault and when combined track 4 glides from right to left, the motion of curvilinear guide climbing robot hypervelocity, hypervelocity is promptly shut down the tool device and is in second state.Second end of moment of momentum swing arm 10 breaks away from the edge of triangular portions 32 owing to the fast rotational of triangle friction wheel 13, the first transmission bar 29 drives ratchet and discharges together rotation of centering block combination 11, the second transmission bar 30 is by skidding off in the breach 23, ratchet assemblies 14 rotates to ratchet 24 and contacts with cylindrical rails 5, and the curvilinear guide climbing robot is realized safety arrestment by ratchet 24.
Behind the trouble-shooting, can make this hypervelocity promptly shut down the tool device by startup connecting rod assembly 15 and return back to first state.Pulling starts connecting rod assembly 15, ratchet assemblies 14 rotations, and ratchet 24 breaks away from cylindrical rails 5, and moment of momentum swing arm 10, ratchet discharge centering block combination 11 and rotate under the action of gravity of counterweight part 28, and the second transmission bar 30 returns back in the breach 23 of ratchet connecting strap 21.
Because combined track 4 is a curve track, therefore, the centering block 9 that floats can change its angle along with the angle of combined track 4, and realization cooperates with track.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a hypervelocity is promptly shut down the tool device, be installed on the curvilinear guide climbing robot, described curvilinear guide climbing robot comprises motor, be installed on the indent roller on the output shaft of described motor, be installed on the gear on the output shaft of described motor, combined track, described combined track comprises cylindrical rails, the tooth bar that is axially disposed within the one side along described cylindrical rails, described indent roller of described driven by motor and described gear rotate and move along described combined track, described indent roller and described cylindrical rails fit, described gear is meshed with described tooth bar, it is characterized in that: described hypervelocity is promptly shut down the tool device and is comprised unsteady centering block on the output shaft that is set in described motor, the rotating moment of momentum swing arm that is installed on the described unsteady centering block, be installed on the described unsteady centering block and discharge the centering block combination with the ratchet of described moment of momentum swing arm coaxial rotation, be installed in the mount pad of described unsteady centering block below, be installed on the described mount pad and rotating triangle friction wheel, be installed in the ratchet assemblies on the described indent roller, one end is connected the other end on the described ratchet assemblies and is fixedly connected on startup connecting rod assembly on the described unsteady centering block;
Described ratchet assemblies top is provided with a breach, and a side of the close described combined track of described ratchet assemblies comprises one section ratchet and one section smooth surface;
Described moment of momentum swing arm, described ratchet discharge the centering block combination and comprise first end, second end respectively, the top of described moment of momentum swing arm is provided with along it changes the axial first transmission bar, the described first transmission bar discharges the centering block combination with described ratchet and contacts, and the top that described ratchet discharges the centering block combination is provided with the second transmission bar;
Described triangle friction wheel comprises triangular portions, roller portion, second end moving contact mutually of described triangular portions and described moment of momentum swing arm, and described roller portion is adjacent on described cylindrical rails and along described cylindrical rails and rolls;
Described hypervelocity is promptly shut down the tool device and is comprised first state and second state, when the kinematic velocity of described curvilinear guide climbing robot surpasses predefined value, during described curvilinear guide climbing robot uniform movement, described hypervelocity is promptly shut down the tool device and is in described first state, edge along described triangular portions slides second end of described moment of momentum swing arm with the rotation of described triangle friction wheel, the described second transmission bar is arranged in described breach, and the smooth surface of described ratchet assemblies is near described cylindrical rails; When described curvilinear guide climbing robot hypervelocity is moved; described hypervelocity is promptly shut down the tool device and is in described second state; second end of described moment of momentum swing arm breaks away from the edge of described triangular portions owing to the fast rotational of described triangle friction wheel; the described first transmission bar drives described ratchet and discharges together rotation of centering block combination; the described second transmission bar is by skidding off in the described breach; described ratchet assemblies rotates to described ratchet and contacts with described cylindrical rails, and described curvilinear guide climbing robot is realized safety arrestment by described ratchet.
2. hypervelocity according to claim 1 is promptly shut down the tool device, it is characterized in that: the middle part of described indent roller offers groove, and described ratchet assemblies is arranged in the described groove.
3. hypervelocity according to claim 1 is promptly shut down the tool device, it is characterized in that: described ratchet assemblies comprises ratchet sheet, the ratchet connecting strap that is connected by screw, form a through hole between described ratchet sheet and the described ratchet connecting strap, described indent roller is arranged in the described through hole; The close described ratchet that described breach is arranged on described ratchet connecting strap discharges the side that centering block makes up; Described ratchet, described smooth surface are arranged on the below of described ratchet sheet.
4. hypervelocity according to claim 1 is promptly shut down the tool device, it is characterized in that: described mount pad is provided with spring, and described spring is adjacent on described cylindrical rails the roller portion of described triangle friction wheel.
5. hypervelocity according to claim 1 is promptly shut down the tool device; it is characterized in that: described startup connecting rod assembly comprise start connecting rod, with the spring assembly of the perpendicular setting of described startup connecting rod; one end of described startup connecting rod is connected on the described ratchet assemblies; the other end of described startup connecting rod is connected with an end of described spring assembly, and the other end of described spring assembly is fixedly connected on the described unsteady centering block.
6. hypervelocity according to claim 1 is promptly shut down the tool device; it is characterized in that: described unsteady centering block is provided with the first cross track roller; described mount pad is provided with the second cross track roller; the described first cross track roller is adjacent to the top of described cylindrical rails and rotates along described cylindrical rails, and the described second cross track roller is adjacent to the below of described cylindrical rails and rotates along described cylindrical rails.
7. hypervelocity according to claim 1 is promptly shut down the tool device, it is characterized in that: described unsteady centering block is provided with two vertical track rollers, and described vertical track roller is adjacent to the side of described cylindrical rails and rotates along described cylindrical rails.
8. hypervelocity according to claim 1 is promptly shut down the tool device, it is characterized in that: the rotating shaft that described moment of momentum swing arm and described ratchet discharge the centering block combination lays respectively at first end of described moment of momentum swing arm, described ratchet discharges first end that centering block makes up.
9. hypervelocity according to claim 8 is promptly shut down the tool device; it is characterized in that: first end of described moment of momentum swing arm offers shaft hole; first end that described ratchet discharges the centering block combination is provided with S. A., and described S. A. passes described shaft hole the combination of described ratchet release centering block, described moment of momentum swing arm are installed on the described unsteady centering block.
10. hypervelocity according to claim 1 is promptly shut down the tool device, it is characterized in that: described moment of momentum swing arm, described ratchet discharge the centering block combination and are respectively arranged with counterweight part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110133232 CN102259783B (en) | 2011-03-17 | 2011-05-23 | Mechanical device stopping in case of overspeed |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110064683.3 | 2011-03-17 | ||
| CN201110064683 | 2011-03-17 | ||
| CN 201110133232 CN102259783B (en) | 2011-03-17 | 2011-05-23 | Mechanical device stopping in case of overspeed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102259783A true CN102259783A (en) | 2011-11-30 |
| CN102259783B CN102259783B (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110133232 Active CN102259783B (en) | 2011-03-17 | 2011-05-23 | Mechanical device stopping in case of overspeed |
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| CN (1) | CN102259783B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355084A (en) * | 2014-10-20 | 2015-02-18 | 浙江埃克摩包装科技股份有限公司 | Security ensuring device of scraping device |
| CN105174129A (en) * | 2015-10-19 | 2015-12-23 | 崔会斌 | Lifting device for oxygen acetylene cylinder detection |
| CN106458509A (en) * | 2014-06-16 | 2017-02-22 | 斯坦纳座椅电梯有限公司 | Improvements in or relating to stairlifts |
| CN106744144A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Jacking equipment electromagnetic propulsion rack-and-pinion safety catch |
| CN106744138A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Rack-and-pinion jacking equipment levels electromagnetic promotes safety catch |
| CN106744192A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | A kind of safety catch of pinion and-rack jacking equipment |
| CN106744143A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Jacking equipment electromagnetic lever flat bed controls safety catch |
| CN106744194A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Jacking equipment levels electromagnetic lever-rack flat bed controls safety catch |
| CN107032252A (en) * | 2016-12-27 | 2017-08-11 | 廖忠民 | Pinion and-rack jacking equipment levels electromagnetic pulls safety catch |
| CN107032251A (en) * | 2016-12-27 | 2017-08-11 | 廖忠民 | Rack-and-pinion jacking equipment horizontal safety catch |
| CN110790112A (en) * | 2019-12-06 | 2020-02-14 | 青岛长永机械工程有限公司 | Folding platform gravity carrying system for taking in existing building with additionally-installed elevator split-level corridor |
| CN111762654A (en) * | 2020-08-11 | 2020-10-13 | 江苏安全技术职业学院 | Elevator detection device with remote control function |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106458509A (en) * | 2014-06-16 | 2017-02-22 | 斯坦纳座椅电梯有限公司 | Improvements in or relating to stairlifts |
| US10479649B2 (en) | 2014-06-16 | 2019-11-19 | Stannah Stairlifts Limited | Over-speed detection device for stairlifts |
| CN106458509B (en) * | 2014-06-16 | 2019-05-10 | 斯坦纳座椅电梯有限公司 | In stair lift or improvement relevant to stair lift |
| EP3403974A1 (en) * | 2014-06-16 | 2018-11-21 | Stannah Stairlifts Limited | Improvements in or relating to stairlifts |
| CN104355084A (en) * | 2014-10-20 | 2015-02-18 | 浙江埃克摩包装科技股份有限公司 | Security ensuring device of scraping device |
| CN105174129A (en) * | 2015-10-19 | 2015-12-23 | 崔会斌 | Lifting device for oxygen acetylene cylinder detection |
| CN106744143A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Jacking equipment electromagnetic lever flat bed controls safety catch |
| CN106744194A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Jacking equipment levels electromagnetic lever-rack flat bed controls safety catch |
| CN107032252A (en) * | 2016-12-27 | 2017-08-11 | 廖忠民 | Pinion and-rack jacking equipment levels electromagnetic pulls safety catch |
| CN107032251A (en) * | 2016-12-27 | 2017-08-11 | 廖忠民 | Rack-and-pinion jacking equipment horizontal safety catch |
| CN106744192A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | A kind of safety catch of pinion and-rack jacking equipment |
| CN106744138A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Rack-and-pinion jacking equipment levels electromagnetic promotes safety catch |
| CN106744144A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Jacking equipment electromagnetic propulsion rack-and-pinion safety catch |
| CN110790112A (en) * | 2019-12-06 | 2020-02-14 | 青岛长永机械工程有限公司 | Folding platform gravity carrying system for taking in existing building with additionally-installed elevator split-level corridor |
| CN111762654A (en) * | 2020-08-11 | 2020-10-13 | 江苏安全技术职业学院 | Elevator detection device with remote control function |
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| Publication number | Publication date |
|---|---|
| CN102259783B (en) | 2013-04-10 |
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