CN111054088B - Fall-preventing Weiya device - Google Patents
Fall-preventing Weiya device Download PDFInfo
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- CN111054088B CN111054088B CN201911363735.XA CN201911363735A CN111054088B CN 111054088 B CN111054088 B CN 111054088B CN 201911363735 A CN201911363735 A CN 201911363735A CN 111054088 B CN111054088 B CN 111054088B
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- Prior art keywords
- rod
- control
- plate
- pressure plate
- wire rope
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
- A63J5/00—Auxiliaries for producing special effects on stages, or in circuses or arenas
- A63J5/12—Apparatus for raising or lowering persons
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Abstract
The invention relates to the technical field of film and television props and discloses a falling prevention Weiya device which comprises a connecting base plate and fixed pulleys. This prevent wire device of falling, when wire rope breaks, locating plate and fixed pulley extrude each other under the effect of pull rod, utilize frictional force to tie wire rope in the recess, and the compensation through the ejector pin, make final resistance be greater than people's gravity, prevent that the actor from continuing to fall, pressure between locating plate and the pressure plate all the time with human gravity adaptation simultaneously, make the fag end of disconnection can remove, avoid the rope to break once more, when sliding to disconnected opening, increase frictional force, make the fag end totally tied, at this in-process, utilize frictional force as far as energy dissipation, tie the fag end again, reduce wire rope and collapse the kinetic energy of actor when disconnected once more.
Description
Technical Field
The invention relates to the technical field of film and television props, in particular to a Fall-proof Weiya device.
Background
During movie & TV shoot or stage performance, often use wire ya in order to realize complicated action, wire rope is after repetitious usage, and its life can reduce, and wire rope breaks off when hanging wire ya, and the actor falls also common incident by accident, and during movie & TV play shoot hanging wire ya, usually can place the cushion below wire ya to the actor that the protection is unexpected to fall, but stage play and outdoor usually can not fill up the cushion, consequently the problem that needs to solve is promptly protected the actor to be unexpected to fall at wire rope disconnection.
Further, since there are likely to be other points near the location where the broken wire rope breaks, the device for preventing a fall may not achieve the desired effect, and the fall may still occur, and the need for cushioning may not be met by the mat alone, a device is needed to eliminate some of the kinetic energy of the fall to better protect the actor.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a technical scheme of a Fall-preventing Weiya device, which has the advantages of fall prevention, small impact force and the like and solves the problems in the background technology.
The invention provides the following technical scheme: a Fall-preventing Weiya device comprises a connecting base plate and a fixed pulley, wherein a positioning plate is arranged at the upper end of the connecting base plate, a pressure plate is arranged at the upper end of the positioning plate, the fixed pulley is fixedly arranged at two sides of the pressure plate, the lowest point of the fixed pulley, which slides, is higher than the highest point of a groove, meanwhile, a steel wire rope is not in contact with the lowest point of the groove, the positioning plate is connected with the pressure plate through a tension spring, the fixed pulley is connected with the positioning plate through a limiting rod which moves in a single direction, a pull rod is arranged on the lower end face of the pressure plate and penetrates through the positioning plate and the pressure plate, a compressible spring is arranged between the pull rod and the lower end face of the connecting base plate, a mandril is sleeved on the positioning plate and the connecting base plate, a tension spring in an extending state is arranged between the mandril and the lower end face of the connecting base plate, a control rod for preventing the mandril from moving upwards is arranged in the connecting base plate, the control rod can move to a position where the control rod does not obstruct the top rod from moving upwards.
Preferably, the lateral wall of gag lever post begins to have the spacing tooth of vertical range, the position that connection substrate and the spacing tooth of gag lever post correspond is equipped with the locating pin, be equipped with the No. two springs that make the locating pin be close to the gag lever post on the locating pin, the one end that the locating pin is close to the gag lever post is equipped with the decurrent wedge in inclined plane, the one end that the locating pin is located the outside is equipped with the handle.
Preferably, the ejector rod is provided with a control opening corresponding to the position of the control rod, and two sides of the control rod, which are close to the ejector rod, are provided with movable grooves which are concave upwards.
Preferably, both ends of the control rod are provided with limiting grooves, vertical trigger rods are arranged in the limiting grooves of the control rod, two ends of the control rod are provided with three springs in a compression state, the upper ends of the trigger rods prop against the steel wire rope, the outer side wall of each trigger rod is provided with a four spring which enables the trigger rod to move upwards, and a hook which hooks the three springs is arranged on each trigger rod.
Preferably, the upper end of the control opening is provided with a first concave tooth, and the pressure plate is provided with staggered grooves at the position corresponding to the control opening.
The invention has the following beneficial effects:
1. according to the anti-falling Weiya device, when a steel wire rope is broken, the positioning plate and the fixed pulley are mutually extruded under the action of the pull rod, the steel wire rope is bound in the groove by utilizing friction force, the final resistance is larger than the gravity of a person through the compensation effect of the ejector rod, and an actor is prevented from continuously falling.
2. This prevent wire device of falling, because the gag lever post is following pressure plate unidirectional movement, make pressure between locating plate and the pressure plate all the time with human gravity adaptation, make the fag end of disconnection can remove, avoid too big impact force, avoid the rope to break once more, when sliding to the disconnection mouth, under the effect of ejector pin, further strengthen frictional force, make the fag end be retrained completely, at this in-process, utilize frictional force energy dissipation as far as, retrain the fag end again, reduce the kinetic energy of actor when wire rope collapses absolutely once more, reduce the injury that unexpected emergence.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of a control lever of the present invention;
FIG. 4 is a schematic view of a stop lever according to the present invention;
FIG. 5 is an enlarged view of A of FIG. 1 according to the present invention.
In the figure: 1. connecting the substrates; 2. a fixed pulley; 3. positioning a plate; 4. a pressure plate; 5. a first tension spring; 6. a limiting rod; 7. positioning pins; 8. a pull rod; 9. a top rod; 10. a control port; 11. a control lever; 12. a trigger lever; 13. a steel cord.
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.
Referring to fig. 1-5, a fall-preventing Weiya device comprises a connecting base plate 1 and a fixed pulley 2, a positioning plate 3 is arranged at the upper end of the connecting base plate 1, a pressure plate 4 is arranged at the upper end of the positioning plate 3, a groove matched with a steel wire rope 13 in size is arranged between the positioning plate 3 and the pressure plate 4, the fixed pulley 2 is fixedly arranged at the position of the groove, the fixed pulley 2 is fixedly arranged at two sides of the pressure plate 4, the lowest point of the sliding of the fixed pulley 2 is higher than the highest point of the groove, the steel wire rope 13 is not contacted with the lowest point of the groove, the positioning plate 3 is connected with the pressure plate 4 through a tension spring 5, the pressure plate 4 drives the positioning plate 3 to move through the tension spring 5, the positioning plate 3 and the pressure plate 4 are not influenced to be close to each other, the fixed pulley 2 is connected with the positioning plate 3 through a limiting rod 6 moving in a single direction, the upper end of the limiting rod 6 is fixedly connected with the positioning plate 3, the lower extreme of gag lever post 6 is equipped with the stopper of avoiding gag lever post 6 to dash roll-off in the connection substrate 1, the lower terminal surface of pressure plate 4 is equipped with pull rod 8, pull rod 8 runs through locating plate 3 and pressure plate 4, be equipped with compressible spring between the lower terminal surface of pull rod 8 and connection substrate 1, locating plate 3 overlaps with connection substrate 1 and is equipped with ejector pin 9, be equipped with the extension spring No. two that is the extension state between the lower terminal surface of ejector pin 9 and connection substrate 1, the inside of connection substrate 1 is equipped with the control lever 11 that hinders ejector pin 9 rebound, control lever 11 can move to the position that does not hinder ejector pin 9 rebound.
Wherein, the lateral wall of gag lever post 6 begins to have the spacing tooth of vertical range, the position that connection substrate 1 and gag lever post 6's spacing tooth correspond is equipped with locating pin 7, be equipped with No. two springs that make locating pin 7 be close to gag lever post 6 on the locating pin 7, the one end that locating pin 7 is close to gag lever post 6 is equipped with the wedge that the inclined plane is downward, the inclined plane upward movement of extrusion locating pin 7 when gag lever post 6 rebound, gag lever post 6 downward movement is stopped by the horizontal plane of locating pin 7, the locating pin 7 is located outside one end and is equipped with the handle, be convenient for liberate the constraint of locating pin 7 to gag lever post 6.
Wherein, the ejector pin 9 is equipped with control mouth 10 corresponding to the position of control lever 11, and the both sides that control lever 11 is close to ejector pin 9 are equipped with the activity groove of upwards sinking, and when control lever 11 moved left or right, all can make the activity groove card go into in the control mouth 10, make ejector pin 9 resume upward movement.
Wherein, the both ends of control lever 11 all are equipped with the spacing groove, be equipped with vertical trigger lever 12 in the spacing groove of control lever 11, control lever 11 is by the 12 limited position at both ends of trigger lever, the both ends of control lever 11 all are equipped with the No. three springs that are compression state, wire rope 13 is being pushed against to the upper end of trigger lever 12, the lateral wall of trigger lever 12 is equipped with the No. four springs that make trigger lever 12 upward movement, wire rope 13 when the upper end of trigger lever 12 removes away, 12 upward movements of trigger lever, make the one end of control lever 11 released, be equipped with the couple that colludes No. three springs on trigger lever 12, make No. three springs of this side drop when 12 upward movements of trigger lever, make the whole this side of trigger lever 12 move to this side.
Wherein, the upper end of control mouth 10 is equipped with concave tooth No. one, and the pressure plate 4 is equipped with crisscross recess with the position that control mouth 10 corresponds, strengthens the ability of constraint wire rope 13.
The working principle and the working principle of the invention are as follows:
when the wire rope 13 is used, the wire rope 13 penetrates through a groove between the positioning plate 3 and the pressure plate 4 and lifts the pressure plate 4 through the fixed pulleys 2 at two ends, the wire rope 13 of an actor is arranged between the positioning plate 3 and the pressure plate 4, the pressure plate 4 and the positioning plate 3 are far away from the connecting base plate 1 under the action of the gravity of the actor, when one end of the wire rope 13 is broken, the pressure plate 4 loses the action of the gravity of the actor and is close to the positioning plate 3 under the action of the pull rod 8, the positioning plate 3 is kept still in situ under the action of the limiting rod 6, the pressure between the positioning plate 3 and the pressure plate 4 is the same as the gravity, the friction force borne by the wire rope 13 is matched with the gravity of the actor, the wire rope 13 slides along the groove between the positioning plate 3 and the pressure plate 4, in the process, the friction force reduces the kinetic energy of the falling actor, when the rope head of the wire rope 13 slides over the position of the trigger rod 12, the trigger rod 12 moves upwards, the control rod 11 moves under the action of the spring on the other side by hooking the spring III on the side, the movable groove is aligned with the control opening 10, the ejector rod 9 moves upwards to prop against the steel wire rope 13 upwards, the friction force borne by the steel wire rope 13 is increased, the steel wire rope 13 is completely bound, and the kinetic energy and the potential energy of the actor are lowest when the actor is broken off again.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A Fall arrest Weiya device comprising a connection base plate (1) and a fixed pulley (2), characterized in that: the upper end of the connecting substrate (1) is provided with a positioning plate (3), the upper end of the positioning plate (3) is provided with a pressure plate (4), two sides of the pressure plate (4) are fixedly provided with fixed pulleys (2), the positioning plate (3) and the pressure plate (4) are connected through a tension spring (5), the fixed pulleys (2) and the positioning plate (3) are connected through a limiting rod (6) with one-way movement, the lower end face of the pressure plate (4) is provided with a pull rod (8), the pull rod (8) penetrates through the positioning plate (3) and the pressure plate (4), a compressible spring is arranged between the pull rod (8) and the lower end face of the connecting substrate (1), the positioning plate (3) and the connecting substrate (1) are sleeved with a push rod (9), and a tension spring with two tension springs in an extension state is arranged between the push rod (9) and the lower end face of the connecting substrate (1), a control rod (11) for preventing the ejector rod (9) from moving upwards is arranged in the connecting base plate (1), and the control rod (11) can move to a position where the ejector rod (9) is not prevented from moving upwards;
a control opening (10) is formed in the position, corresponding to the control rod (11), of the ejector rod (9), and two sides, close to the ejector rod (9), of the control rod (11) are provided with upward-concave movable grooves;
the upper end of the control opening (10) is provided with a number one of concave teeth, and staggered grooves are formed in the positions, corresponding to the control opening (10), of the pressure plate (4); the lowest point of the fixed pulley (2) in sliding is higher than the highest point of the groove, and meanwhile, the steel wire rope (13) is not contacted with the lowest point of the groove.
2. A fall arrest wiya device as claimed in claim 1, wherein: the utility model discloses a spacing structure of safety device, including gag lever post (6), the lateral wall of gag lever post (6) begins to have the spacing tooth of vertical range, the position that connection base plate (1) and the spacing tooth of gag lever post (6) correspond is equipped with locating pin (7), be equipped with No. two springs that make locating pin (7) be close to gag lever post (6) on locating pin (7), the one end that locating pin (7) are close to gag lever post (6) is equipped with the decurrent wedge in inclined plane, the one end that locating pin (7) are located the outside is equipped with the handle.
3. A fall arrest wiya device as claimed in claim 1, wherein: the both ends of control lever (11) all are equipped with the spacing groove, be equipped with vertical trigger lever (12) in the spacing groove of control lever (11), the both ends of control lever (11) all are equipped with the No. three springs that are compression state, wire rope (13) are being pushed against to the upper end of trigger lever (12), the lateral wall of trigger lever (12) is equipped with the No. four springs that make trigger lever (12) upward movement, be equipped with the couple that colludes No. three springs on trigger lever (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363735.XA CN111054088B (en) | 2019-12-26 | 2019-12-26 | Fall-preventing Weiya device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363735.XA CN111054088B (en) | 2019-12-26 | 2019-12-26 | Fall-preventing Weiya device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111054088A CN111054088A (en) | 2020-04-24 |
| CN111054088B true CN111054088B (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911363735.XA Expired - Fee Related CN111054088B (en) | 2019-12-26 | 2019-12-26 | Fall-preventing Weiya device |
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| Country | Link |
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| CN (1) | CN111054088B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569617B (en) * | 2020-12-03 | 2022-12-27 | 浙江大丰实业股份有限公司 | Safety device is used in air performance of stage actor |
Citations (9)
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| KR100950436B1 (en) * | 2009-12-04 | 2010-04-02 | (주)유성스테이지 | Safety and guide apparatus of wire rope for stage setting |
| CN201545571U (en) * | 2009-11-23 | 2010-08-11 | 杭州昌易轴承有限公司 | Progressive wedge anti-falling safety device |
| CN102249165A (en) * | 2011-07-08 | 2011-11-23 | 洛阳涧光石化设备有限公司 | Fall protection device |
| CN103848305A (en) * | 2012-12-03 | 2014-06-11 | 吴旭榕 | Anti-drop system of construction elevator |
| CN203728361U (en) * | 2014-03-12 | 2014-07-23 | 邢海峰 | Buffer device with stabilizing rope |
| CN104477725A (en) * | 2014-12-31 | 2015-04-01 | 中国矿业大学 | Centrifugal transmission mechanism based wire rope overspeed capturing device of aerial passenger device |
| CN107899256A (en) * | 2017-11-28 | 2018-04-13 | 华强方特（芜湖）文化科技有限公司 | A kind of annular wire system for possessing protection mechanism |
| CN107930158A (en) * | 2017-11-11 | 2018-04-20 | 华强方特（芜湖）文化科技有限公司 | A kind of single-point crane system for possessing separation and protection mechanism |
| CN109985327A (en) * | 2019-04-16 | 2019-07-09 | 郑淳予 | A kind of falling prevention device ascended a height for power test and its application method |
-
2019
- 2019-12-26 CN CN201911363735.XA patent/CN111054088B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201545571U (en) * | 2009-11-23 | 2010-08-11 | 杭州昌易轴承有限公司 | Progressive wedge anti-falling safety device |
| KR100950436B1 (en) * | 2009-12-04 | 2010-04-02 | (주)유성스테이지 | Safety and guide apparatus of wire rope for stage setting |
| CN102249165A (en) * | 2011-07-08 | 2011-11-23 | 洛阳涧光石化设备有限公司 | Fall protection device |
| CN103848305A (en) * | 2012-12-03 | 2014-06-11 | 吴旭榕 | Anti-drop system of construction elevator |
| CN203728361U (en) * | 2014-03-12 | 2014-07-23 | 邢海峰 | Buffer device with stabilizing rope |
| CN104477725A (en) * | 2014-12-31 | 2015-04-01 | 中国矿业大学 | Centrifugal transmission mechanism based wire rope overspeed capturing device of aerial passenger device |
| CN107930158A (en) * | 2017-11-11 | 2018-04-20 | 华强方特（芜湖）文化科技有限公司 | A kind of single-point crane system for possessing separation and protection mechanism |
| CN107899256A (en) * | 2017-11-28 | 2018-04-13 | 华强方特（芜湖）文化科技有限公司 | A kind of annular wire system for possessing protection mechanism |
| CN109985327A (en) * | 2019-04-16 | 2019-07-09 | 郑淳予 | A kind of falling prevention device ascended a height for power test and its application method |
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| Publication number | Publication date |
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| CN111054088A (en) | 2020-04-24 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211129 Address after: 251600 No. 77, Keyuan street, Shanghe County, Jinan City, Shandong Province Applicant after: Shanghe industrial investment and Development Group Co.,Ltd. Address before: 330000 No. 66 Jingdong Avenue, Qingshanhu District, Nanchang City, Jiangxi Province Applicant before: Jun Jun Chen |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 Termination date: 20211226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |