CN102605942B - Falling protection device - Google Patents
Falling protection device Download PDFInfo
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- CN102605942B CN102605942B CN201210105256.XA CN201210105256A CN102605942B CN 102605942 B CN102605942 B CN 102605942B CN 201210105256 A CN201210105256 A CN 201210105256A CN 102605942 B CN102605942 B CN 102605942B
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- braking
- runner
- braked wheel
- turning cylinder
- proof device
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Abstract
The invention discloses a falling protection device, which comprises a guide track and a guide seat. Cross rods which are arranged uniformly at intervals are arranged on the guide track, a rotating wheel which is rotatably meshed with the cross rods is mounted on the guide seat, braking wheels, braking swing pins and resetting springs are coaxially arranged at two ends of the rotating wheel, wherein the braking wheels move along with the rotating wheel, the braking swing pins are hinged on the guide seat, and the braking swing pins and the braking wheels brake in a matched manner. A falling protector is disposed in the guide seat, the structure is compact, a falling brake distance is short, braking can be realized more effectively in a shorter distance, vibration and braking stress are reduced, braking is more balanced, and stability is better. The braking swing pins are excellent in structure, the braking wheels cannot be separated from the braking swing pins under any conditions, and braking reliability is guaranteed. Safety is not affected by movement of lifting equipment, and the falling protection device has a more convenient, safer and more effective use performance.
Description
Technical field
The invention belongs to Machine Design and manufacture field, especially belong to building machinery and manufacture and design field, particularly a kind of falling proof device of jacking equipment for building.
Background technology
Jacking equipment for building needs the accidental falling accident of falling proof device to prevent from occurring in the time using operation.Conventionally jacking equipment comprises Hoisting System, control system and lifting guide rail and the guide bracket that moves along guide rail etc.
Patent application 200810068257.5 discloses " a kind of rotating wheel falling prevention fall positioning type elevating jacking equipment and anti-drop method thereof ", it is by a guide rail and a guide bracket are set, guide bracket is connected with guide rail sliding sleeve, spaced cross bar is set on guide rail, on guide bracket, arrange one can with the anti-fall locating wheel of the cross bar engaged transmission at interval, between anti-fall fixed wheel position and anti-fall locating axle seat, arrangement of clutch is set.Jacking equipment is in slow lifting and slow decreasing process, support body tenesmus suddenly can cause anti-fall fixed wheel to produce the larger speed that rotates backward, automatic trigger triggers clutch apparatus work, make anti-fall fixed wheel can not continue to rotate backward anti-fall locating wheel and block the structure cross bar arranging on guide rail, prevent that jacking equipment from falling.This falling proof device structure is comparatively complicated, does not utilize and applies.
Patent application 200910106059.8 discloses " a kind of rotating wheel falling prevention dropping control device and method of work thereof of attaching lifting jacking equipment ", and patent CN2364133Y discloses " Novel swing pin type falling proof device ".It has described respectively a kind of falling proof device.But all existence and stability and operational issues, to making there is potential safety hazard in application.
Summary of the invention
The present invention discloses a kind of falling proof device according to the deficiencies in the prior art.The problem to be solved in the present invention is to provide a kind of safer, falling proof device that reliability is stronger, easy to operate.
The present invention is achieved through the following technical solutions:
Falling proof device, the guide bracket that comprises guide rail and move along guide rail, on described guide rail, there is even spaced cross bar, described guide bracket is provided with the runner with cross bar engagement in rotation, wherein: the coaxial two ends of described runner are provided with the braked wheel servo-actuated with runner, be hinged on the braking pendulum pin and the back-moving spring that on guide bracket, coordinate braking with braked wheel.
Described braking pendulum pin has turning cylinder; Turning cylinder surface is axially provided with rotates moving tooth and braking clamp, and the angle that rotates moving tooth radial centre lines and braking clamp radial centre lines is 90 degree; The upper surface of braking clamp is plane and perpendicular to braking clamp radial centre lines, upper surface is more than or equal to the distance on turning cylinder axle center and braked wheel surface to the minimum range in turning cylinder axle center.
The width of described braking clamp upper surface is more than or equal to turning cylinder diameter, and the right-angle side of braking clamp is that the angle of turning cylinder tangent to periphery, hypotenuse and upper surface is 60 degree.
Further described runner and servo-actuated braked wheel are fixed by a connection rotating shaft, and connection rotating shaft and runner connecting portion and braked wheel connecting portion cross section are square.
Described runner is provided with five runner teeth at even circumferential.
Described braked wheel is provided with five braking gear teeth at even circumferential, and each braking gear teeth cross section is trapezoidal, and trapezoidal upper plane and the angle of waist are 60 degree.
Above-mentioned falling proof device is usually applied in the jacking equipment of building machinery, and guide rail can adopt and share with jacking equipment or independent set-up mode, and guide bracket and lift platform are connected and fixed to realize anti-falling function.In running, jacking equipment is in the time slowly promoting, and runner tooth engages slowly and clockwise rotates with spaced cross bar on guide rail; When jacking equipment slow decreasing, runner tooth arranges cross bar with interval on guide rail and engages slowly inhour rotation; When jacking equipment slowly promotes, braked wheel slowly clockwise rotates with runner, the rotation moving tooth that the braking gear teeth are stirred braking pendulum pin rotates braking pendulum pin, braked wheel is rotated further, the braking gear teeth come to nothing with the rotation moving tooth of braking pendulum pin, braking pendulum pin resets under the effect of back-moving spring, so circulation; When jacking equipment slow decreasing, braked wheel is with slowly inhour rotation of runner, the rotation moving tooth that the braking gear teeth are stirred braking pendulum pin rotates braking pendulum pin, braked wheel is rotated further, the braking gear teeth come to nothing with the rotation moving tooth of braking pendulum pin, braking pendulum pin resets under the effect of back-moving spring, so circulation.
The fall arrest principle of anti-drop device is: jacking equipment is in slow lifting and slow decreasing process, the lift platform interlock guide bracket that drops suddenly, runner produces larger inhour and rotates speed, make the previous braking gear teeth of braked wheel that rotate with runner and adjacent rear braking gear teeth touch braking pendulum pin to rotate the time slot shortening of moving tooth, after rotating, braking pendulum pin can not reset in time, cause the braking clamp of braking pendulum pin to stop that the braking gear teeth rotation path of braked wheel can not be rotated further braked wheel, and then runner is stopped operating block the cross bar at the interval arranging on guide rail, prevent that jacking equipment from continuing to fall.
Helpfulness of the present invention is: the present invention is arranged on anti-drop device in guide bracket, and compact conformation has overcome because falling proof device moves the potential safety hazard that occurs the relative position brake fade that particularly change of distance occurs between brake assemblies; Braked wheel of the present invention and the setting of the braking gear teeth thereof have taken into full account the distance of the braking of falling in lifting process, can be more effectively, the more liftoff realization braking of short distance, reduce vibration and brake stressedly, simultaneously at the coaxial two ends of runner, braked wheel brake structure is set and also makes to brake more balance, stability is better; The present invention brakes pendulum latch structure excellence, adopts solid turning cylinder to bear to the maximum limit brake force, has improved safety; The angle that rotates moving tooth radial centre lines and braking clamp radial centre lines is the design and braking gear teeth exact matching of 90 degree, equally more effectively, the more liftoff realization of short distance is braked; It is higher that the top surface plane of braking clamp makes to brake stressed uniform strength perpendicular to braking clamp radial center line structure, braking clamp upper surface is more than or equal to the distance on turning cylinder axle center and braked wheel surface to the minimum range in turning cylinder axle center, while making to occur braking in any case, braked wheel can not come to nothing with braking pendulum pin, has ensured the reliability of braking; Braking pendulum pin and braked wheel are in the time of on-position, the braking of braking pendulum pin is subject to force direction to put pin turning cylinder by braking, overcome existing apparatus and braked the unsafe factor of the intensity of stressed dependence braking clamp, the bar shaped that existing apparatus braking is normally longer or other shape braking clamps and braked wheel or the braking of cross bar jam, the stressed generation security incident that easily fractures of braking clamp, equally due to the architectural feature of the braking gear teeth and with the coordinating of braking pendulum pin, the braking of the braking gear teeth is subject to force direction to pass through also to have strengthened in braked wheel security and stability.
Falling proof device compact conformation of the present invention, sensitive reliable, stability and safety, fall arrest distance is short, is not subject to its safety of jacking equipment moving influence, has more convenient functional performance safely and effectively.
Brief description of the drawings
Fig. 1 is falling proof device cross section structure schematic diagram of the present invention;
Fig. 2 is falling proof device guard mode cross section structure schematic diagram of the present invention;
Fig. 3 is Figure 1A A face structural representation;
Fig. 4 is falling proof device braked wheel plane structure schematic diagram of the present invention;
Fig. 5 is falling proof device braking gear teeth structure for amplifying schematic diagram of the present invention;
Fig. 6 is falling proof device runner plane structure schematic diagram of the present invention;
Fig. 7 is falling proof device runner BB cross section structure schematic diagram of the present invention;
Fig. 8 is falling proof device braking pendulum pin cross section structure schematic diagram of the present invention;
Fig. 9 is falling proof device braking pendulum pin Facad structure schematic diagram of the present invention;
Figure 10 is falling proof device connection rotating shaft Facad structure schematic diagram of the present invention;
Figure 11 is falling proof device connection rotating shaft cross section structure schematic diagram of the present invention;
Figure 12 is that falling proof device guard mode force structure of the present invention is analyzed schematic diagram.
In figure, the 1st, runner, 1a is runner tooth, 1b is runner connecting shaft square hole, the 2nd, braked wheel, 2a is the braking gear teeth, 2b is braked wheel connecting shaft square hole, 2g is the angle of the trapezoidal braking gear teeth, the 3rd, connection rotating shaft, 3a is connection rotating shaft braked wheel connecting portion, 3b is connection rotating shaft guide bracket articulated section, 3c is runner connecting portion, the 4th, cross bar, the 5th, guide rail, the 6th, back-moving spring, the 7th, guide bracket, the 8th, braking pendulum pin, 8a rotates moving tooth, 8b is braking clamp, 8c is upper surface, 8d is turning cylinder, 8e is right-angle side, 8f is hypotenuse, 8g is the angle that rotates moving tooth radial centre lines and braking clamp radial centre lines, 8h is the minimum range of upper surface to turning cylinder axle center, F is that guard mode is subject to force direction.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further described, and detailed description of the invention is to the further illustrating of the principle of the invention, and does not limit the present invention in any way, or similar techniques identical with the present invention all do not exceed the scope of protection of the invention.
Falling proof device, the guide bracket 7 that comprises guide rail 5 and move along guide rail 5, on guide rail 5, there is even spaced cross bar 4, guide bracket 7 is provided with the runner 1 with cross bar 4 engagement in rotation, the coaxial two ends of runner 1 are provided with the braked wheel 2 servo-actuated with runner 1, are hinged on the braking pendulum pin 8 and the back-moving spring 6 that on guide bracket 7, coordinate braking with braked wheel 2.
Braking pendulum pin 8 has turning cylinder 8d; Turning cylinder 8d surface is axially provided with rotates moving tooth 8a and braking clamp 8b, and the angle 8g that rotates moving tooth 8a radial centre lines and braking clamp 8b radial centre lines is 90 degree; The upper surface 8c of braking clamp 8b is plane and perpendicular to braking clamp 8b radial centre lines, upper surface 8c is more than or equal to the distance on turning cylinder 8d axle center and braked wheel 2 surfaces to the minimum range 8h in turning cylinder 8d axle center.
The width of braking clamp 8b upper surface 8c is more than or equal to turning cylinder 8d diameter, and the right-angle side 8e of braking clamp 8b is that the angle of turning cylinder 8d tangent to periphery, hypotenuse 8f and upper surface 8c is 60 degree.
Runner 1 is fixing by a connection rotating shaft 3 with servo-actuated braked wheel 2, and connection rotating shaft 3 is square with runner connecting portion 3c and braked wheel connecting portion 3a cross section.
Runner 1 is provided with five runner tooth 1a at even circumferential.
Braked wheel 2 is provided with five braking gear teeth 2a at even circumferential, and each braking gear teeth 2a cross section is trapezoidal, and trapezoidal upper plane and the angle 2g of waist are 60 degree.
In conjunction with Fig. 4 and Fig. 5, as shown in the figure, Fig. 4 is falling proof device braked wheel plane structure schematic diagram of the present invention; Fig. 5 is falling proof device braking gear teeth structure for amplifying schematic diagram of the present invention; This routine braked wheel 2 is provided with five braking gear teeth 2a at even circumferential, and each braking gear teeth 2a cross section is trapezoidal, and trapezoidal upper plane and the angle 2g of waist are 60 degree.The inclined design that braking gear teeth 2a trapezoidal waist 60 is spent mate with the upper surface 8c of braking clamp 8b on braking pendulum pin 8 and is designed stressed when fall arrest can be braked and accept to greatest extent, there will not be large braking component, makes that single unit system is safer to be stablized.Square braked wheel connecting shaft square hole 2b has also further strengthened connecting driving, has increased braking reliability and ability.
In conjunction with Fig. 6 and Fig. 7, as shown in the figure, this routine runner 1 adopts at runner 1 even circumferential and is provided with five runner tooth 1a.The square runner connecting shaft square hole 1b of same employing.
In conjunction with Fig. 8 and Fig. 9, as shown in the figure, braking pendulum pin 8 has turning cylinder 8d, turning cylinder 8d surface is axially provided with rotates moving tooth 8a and braking clamp 8b, and the angle 8g that rotates moving tooth 8a radial centre lines and braking clamp 8b radial centre lines is 90 degree, the upper surface 8c of braking clamp 8b is plane and perpendicular to braking clamp 8b radial centre lines, upper surface 8c is more than or equal to the distance on turning cylinder 8d axle center and braked wheel 2 surfaces to the minimum range 8h in turning cylinder 8d axle center, as shown in Figure 8, the minimum range of upper surface 8c to turning cylinder 8d axle center apart from 8h, upper other points of upper surface 8c are all greater than minimum range 8h to the distance in turning cylinder 8d axle center, further combined with Fig. 1 and Fig. 2, the distance on described turning cylinder 8d axle center and braked wheel 2 surfaces is the lines in turning cylinder 8d axle center and braked wheel 2 axle center under installment state, this line is the length distance to one section, braked wheel 2 surface by turning cylinder 8d axle center, therefore, the distance that upper surface 8c is more than or equal to turning cylinder 8d axle center and braked wheel 2 surfaces to the minimum range 8h in turning cylinder 8d axle center is the further guarantee that the present invention brakes reliability.
The width of braking clamp 8b upper surface 8c is identical with turning cylinder 8d diameter, and the right-angle side 8e of braking clamp 8b is that the angle of turning cylinder 8d tangent to periphery, hypotenuse 8f and upper surface 8c is 60 degree; Lifting surface area when above-mentioned braking clamp 8b structure has strengthened 8 braking of braking pendulum pin, has strengthened stability and the reliability of installing.
Braking pendulum pin 8 is hinged on guide bracket 7 by turning cylinder 8d, does not express for convenience of description hinged state in figure, in fact has the side plate of guide bracket 7 at turning cylinder 8d two ends, can be by hinged fixing braking pendulum pin 8 by hinge hole or increase bearing on side plate.
In conjunction with Figure 10 and Figure 11, runner 1 is fixing by a connection rotating shaft 3 with servo-actuated braked wheel 2, and connection rotating shaft 3 is square with runner connecting portion 3c and braked wheel connecting portion 3a cross section.As mentioned above, connecting portion cross section is that foursquare connection rotating shaft 3 has increased braking reliability and ability.
In conjunction with Figure 12, as shown in the figure, Figure 12 is that falling proof device guard mode force structure of the present invention is analyzed schematic diagram.Braking pendulum pin 8 and braked wheel 2 are in the time of braking guard mode; 8 brakings of braking pendulum pin are subject to force direction F to put pin 8 turning cylinder 8d by braking; overcome existing apparatus and braked the unsafe factor of the intensity of stressed dependence braking clamp; the bar shaped that existing apparatus braking is normally longer or other shape braking clamps and braked wheel or the braking of cross bar jam; the braking clamp generation security incident that easily fractures; equally due to the architectural feature of braking gear teeth 2a and with the coordinating of braking pendulum pin 8, braking gear teeth 2a braking is subject to force direction to pass through also to have strengthened in braked wheel 2 security and stability.
In conjunction with Fig. 1 to Fig. 3, as shown in the figure, Fig. 1 is falling proof device cross section structure schematic diagram of the present invention; Fig. 2 is falling proof device guard mode cross section structure schematic diagram of the present invention; Fig. 3 is Figure 1A A face structural representation; Falling proof device is usually applied in the jacking equipment of building machinery, and guide rail 5 can adopt and share with jacking equipment or independent set-up mode, and guide bracket 7 is connected and fixed to realize anti-falling function with lift platform.In running, jacking equipment is in the time slowly promoting, and runner tooth 1a engages slowly and clockwise rotates with spaced cross bar 4 on guide rail 5; When jacking equipment slow decreasing, runner tooth 1a arranges cross bar 4 with interval on guide rail 5 and engages slowly inhour rotation; When jacking equipment slowly promotes, braked wheel 2 slowly clockwise rotates with runner 1, the rotation moving tooth 8a that braking gear teeth 2a stirs braking pendulum pin 8 rotates braking pendulum pin 8, braked wheel 2 is rotated further, braking gear teeth 2a and the rotation moving tooth 8a of braking pendulum pin 8 come to nothing, braking pendulum pin 8 resets under the effect of back-moving spring 6, so circulation; When jacking equipment slow decreasing, braked wheel 2 is with slowly inhour rotation of runner 1, the rotation moving tooth 8a that braking gear teeth 2a stirs braking pendulum pin 8 rotates braking pendulum pin 8, braked wheel 2 is rotated further, braking gear teeth 2a and the rotation moving tooth 8a of braking pendulum pin 8 come to nothing, braking pendulum pin 8 resets under the effect of back-moving spring 6, so circulation.
The fall arrest principle of anti-drop device is: jacking equipment is in slow lifting and slow decreasing process, lift platform drop suddenly interlock guide bracket 7, runner 1 produces larger inhour and rotates speed, making the braked wheel 2 previous braking gear teeth 2a that rotates with runner 1 and an adjacent rear braking gear teeth 2a touch the time slots that braking pendulum pin 8 rotates moving tooth 8a shortens, after rotating, braking pendulum pin 8 can not reset in time, cause the braking clamp 8b of braking pendulum pin 8 to stop that the braking gear teeth 2a rotation path of braked wheel 2 can not be rotated further braked wheel 2, and then runner 1 is stopped operating block the cross bar 4 at the interval arranging on guide rail 5, prevent that jacking equipment from continuing to fall.
Claims (5)
1. a falling proof device, the guide bracket (7) that comprises guide rail (5) and move along guide rail (5), on described guide rail (5), there is even spaced cross bar (4), described guide bracket (7) is provided with the runner (1) with cross bar (4) engagement in rotation, it is characterized in that: the coaxial two ends of described runner (1) are provided with the braked wheel (2) servo-actuated with runner (1), be hinged on upper braking pendulum pin (8) and the back-moving spring (6) that coordinates braking with braked wheel (2) of guide bracket (7); Described braking pendulum pin (8) has turning cylinder (8d); Turning cylinder (8d) surface is axially provided with rotates moving tooth (8a) and braking clamp (8h), and the angle (8g) that rotates moving tooth (8a) radial centre lines and braking clamp (8h) radial centre lines is 90 degree; The upper surface (8c) of braking clamp (8h) is plane and perpendicular to braking clamp (8h) radial centre lines, and upper surface (8c) is more than or equal to the distance on turning cylinder (8d) axle center and braked wheel (2) surface to the minimum range (8h) in turning cylinder (8d) axle center.
2. falling proof device according to claim 1, it is characterized in that: the width of described braking clamp (8h) upper surface (8c) is more than or equal to turning cylinder (8d) diameter, the right-angle side (8e) of braking clamp (8h) is that turning cylinder (8d) tangent to periphery, hypotenuse (8f) are 60 degree with the angle of upper surface (8c).
3. falling proof device according to claim 1 and 2, it is characterized in that: described runner (1) is fixing by a connection rotating shaft (3) with servo-actuated braked wheel (2), connection rotating shaft (3) is square with runner connecting portion (3c) and braked wheel connecting portion (3a) cross section.
4. falling proof device according to claim 3, is characterized in that: described runner (1) is provided with five runner teeth (1a) at even circumferential.
5. falling proof device according to claim 3, it is characterized in that: described braked wheel (2) is provided with five braking gear teeth (2a) at even circumferential, each braking gear teeth (2a) cross section is trapezoidal, and the angle (2g) of trapezoidal upper plane and waist is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210105256.XA CN102605942B (en) | 2012-04-12 | 2012-04-12 | Falling protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210105256.XA CN102605942B (en) | 2012-04-12 | 2012-04-12 | Falling protection device |
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| Publication Number | Publication Date |
|---|---|
| CN102605942A CN102605942A (en) | 2012-07-25 |
| CN102605942B true CN102605942B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210105256.XA Expired - Fee Related CN102605942B (en) | 2012-04-12 | 2012-04-12 | Falling protection device |
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| CN (1) | CN102605942B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100077B (en) * | 2014-07-22 | 2017-01-18 | 江苏揽月工程科技发展股份有限公司 | Swing pointer type fall-protection wall attachment device |
| CN110259099A (en) * | 2017-09-20 | 2019-09-20 | 烟台知兴知识产权咨询服务有限公司 | A kind of falling proof device of construction attachment type raise scaffold |
| CN108643549B (en) * | 2018-08-02 | 2023-09-22 | 华西工程科技(深圳)股份有限公司 | Falling protector for attached lifting scaffold |
| CN108915235A (en) * | 2018-09-26 | 2018-11-30 | 北京千引力科技发展有限公司 | A kind of elevating scaffold anti-fall device |
| CN112814589B (en) * | 2020-12-30 | 2024-01-26 | 中曼石油装备集团有限公司 | Self-locking type drill rod lifter |
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| CN101302890A (en) * | 2008-06-30 | 2008-11-12 | 深圳市特辰科技有限公司 | Runner drop proof positioning type elevating scaffold and working method thereof |
| CN101519910A (en) * | 2009-03-20 | 2009-09-02 | 深圳市特辰科技有限公司 | Rotating wheel falling prevention device of attachment type raise scaffold and working method thereof |
| CA2638490A1 (en) * | 2008-07-31 | 2010-01-31 | 9020-4983 Quebec Inc. | Scaffolding safety device |
| CN202055503U (en) * | 2010-12-20 | 2011-11-30 | 江苏南通三建集团第十六建设发展有限公司 | Anti-falling device for adhesive elevating scaffold applied in building construction |
| CN202530738U (en) * | 2012-04-12 | 2012-11-14 | 四川省思培科技有限公司 | Fall-off prevention device |
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2012
- 2012-04-12 CN CN201210105256.XA patent/CN102605942B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2931466A (en) * | 1958-04-01 | 1960-04-05 | Allenbaugh Ralph | Safety locking mechanism |
| CN2364133Y (en) * | 1999-04-13 | 2000-02-16 | 沈海晏 | Balancing point type fall preventing device |
| CN101302890A (en) * | 2008-06-30 | 2008-11-12 | 深圳市特辰科技有限公司 | Runner drop proof positioning type elevating scaffold and working method thereof |
| CA2638490A1 (en) * | 2008-07-31 | 2010-01-31 | 9020-4983 Quebec Inc. | Scaffolding safety device |
| CN101519910A (en) * | 2009-03-20 | 2009-09-02 | 深圳市特辰科技有限公司 | Rotating wheel falling prevention device of attachment type raise scaffold and working method thereof |
| CN202055503U (en) * | 2010-12-20 | 2011-11-30 | 江苏南通三建集团第十六建设发展有限公司 | Anti-falling device for adhesive elevating scaffold applied in building construction |
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| CN102605942A (en) | 2012-07-25 |
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