CN106798977B - Braking device for rope traction - Google Patents
Braking device for rope traction Download PDFInfo
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- CN106798977B CN106798977B CN201710119551.3A CN201710119551A CN106798977B CN 106798977 B CN106798977 B CN 106798977B CN 201710119551 A CN201710119551 A CN 201710119551A CN 106798977 B CN106798977 B CN 106798977B
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- braking
- lever
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- brake
- rope
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a braking device for rope traction, which comprises a bracket, an automatic triggering structure fixed with the bracket, a handle structure hinged with the bracket and a braking structure, wherein the automatic triggering structure comprises a first braking structure body and a second braking structure body; the handle structure is provided with a handle and a lever and is used for driving the braking structure to rotate when the handle is broken off or returned; one end of the braking structure is hinged with the braking end of the lever, and the other end of the braking structure is movably connected with the automatic triggering structure and is provided with a braking part; the automatic triggering structure is used for bouncing the braking part when power is off. Braking can be generated at the moment of power failure, and meanwhile, an operator can operate to descend; and when the power is on, the braking device can also increase the friction force between the rope and the rotating wheel.
Description
Technical Field
The present invention relates to a rope pulling apparatus, and more particularly to a braking apparatus for rope pulling.
Background
In disaster relief places, high-altitude operation, field lifting and other occasions, rope traction devices are needed, the lifting speed and the operation simplicity are greatly improved from the initial purely mechanical manual traction to the current automatic motor traction, and the load capacity is improved. Most of the existing rope traction devices adopt a motor driving mode, so that time and labor are saved, and the rope traction devices are widely applied. However, due to the stability of the motor and the stability of the power supply, accidents may occur, for example, the motor is dead due to a problem in a circuit, for example, the motor is damaged, so that the motor loses the braking force of the motor, and if no additional mechanical brake is provided, the motor is out of control, and personal and property losses are caused. The invention patent with the publication number of CN101766873A discloses a brake device which utilizes the acting force of a transmission rope on a steering wheel at the steering position, amplifies the positive pressure between a pressure block and a rope by the lever principle to increase the friction force, thereby braking the transmission rope and ensuring that the device cannot fall out of control. However, the braking process requires a person to pull off the brake pin instead of braking immediately in case of emergency, and meanwhile, the structure of the brake pin generates great pressure on the brake pin under the condition of heavy load, and the brake pin is not easy to pull off. In addition, the braking principle is the friction force between the pressing block and the rope, the rope can be abraded in the safe descending process, the risk that the rope is broken when the rope is used next time is increased, and meanwhile, the pressing groove and the pressing block can be smooth due to friction, so that the next descending of the braking capacity is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel braking device for rope traction, which can immediately brake in an emergency, can simply and safely land and ensures the safety of personal and property.
The technical scheme of the invention is as follows: a braking device for rope traction is characterized by comprising a bracket, an automatic triggering structure fixed with the bracket, a handle structure hinged with the bracket and a braking structure; the handle structure is provided with a handle and a lever and is used for driving the braking structure to rotate when the handle is broken off or returned; one end of the braking structure is hinged with the braking end of the lever, and the other end of the braking structure is movably connected with the automatic triggering structure and is provided with a braking part; the automatic triggering structure is used for bouncing the braking part when power is off.
Preferably, the lever is bent to form an included angle larger than 90 degrees, and the handle is fixed with the lever.
Or one end of the handle is hinged with the lever and the middle part of the lever, and the handle structure is hinged with the bracket and the middle part of the handle.
Preferably, the braking device further comprises a rope pressing structure hinged to the support, one end of the rope pressing structure is hinged to the rope pressing end of the lever, and the other end of the rope pressing structure is movably provided with a rope pressing wheel.
Preferably, one end of the braking structure connected with the lever is provided with a second braking shaft hole.
Preferably, the braking end is provided with a first braking shaft hole, the first braking shaft hole is arranged in a bending mode, and the bending direction of the first braking shaft hole is opposite to that of the lever.
Preferably, the outer circumference of the rope pressing wheel is provided with teeth.
It is preferred. The automatic triggering structure is provided with a spring and an energizable coil.
Preferably, the braking side surface of the braking portion is provided with stripes at equal intervals.
By adopting the scheme, the braking device provided by the invention adopts the handle structure, the braking structure and the automatic triggering structure, the handle structure and the braking structure form two lever actions, the braking purpose can be achieved at the moment of power failure, meanwhile, manual operation can be implemented to brake and descend, the purpose of safe descending is achieved, the safety of people and property is ensured, the rope is not damaged, and in addition, the braking device can also increase the friction force between the rope and the rotating wheel when the power is on.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present invention.
Fig. 2 is a schematic diagram of another embodiment of the present invention.
Fig. 3 is a schematic view of the handle structure of the embodiment of fig. 1.
Fig. 4 is a schematic view of the braking structure of the embodiment of fig. 1.
Fig. 5 is a schematic view of yet another embodiment of the present invention.
Fig. 6 is a schematic diagram of yet another embodiment of the present invention.
Fig. 7 is a diagram illustrating an example of the operation of the handle in the handle-off state when power is applied to the electric motor according to the embodiment of the present invention.
Fig. 8 is an operation example view of the handle in the handle-returned state of the embodiment of fig. 7.
Fig. 9 is an operation diagram of the handle-off state when power is off according to another embodiment of the present invention.
Fig. 10 is an operational view of the handle of the embodiment of fig. 9 in a home position.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are provided for a more complete and thorough understanding of the present disclosure.
It will be understood that when an element is referred to as being "secured" or "secured" to another element, it can be directly secured to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For example, the braking device for rope traction is characterized by comprising a bracket, an automatic triggering structure fixed with the bracket, a handle structure hinged with the bracket and a braking structure; the handle structure is provided with a handle and a lever and is used for driving the braking structure to rotate when the handle is broken off or returned; one end of the braking structure is hinged with the braking end of the lever, and the other end of the braking structure is movably connected with the automatic triggering structure and is provided with a braking part; the automatic triggering structure is used for bouncing the braking part when power is off. The lever is bent to form an included angle larger than 90 degrees, and the handle is fixed with the lever. One end of the handle is hinged with the lever and the middle part of the lever, and the handle structure and the support are hinged with the middle part of the handle. The braking device further comprises a rope pressing structure hinged with the support, one end of the rope pressing structure is hinged with the rope pressing end of the lever, and the other end of the rope pressing structure is movably provided with a rope pressing wheel. One end of the brake structure connected with the lever is provided with a second brake shaft hole. The brake end is equipped with first braking shaft hole, the crooked setting in first braking shaft hole, the crooked orientation in first braking shaft hole with the crooked orientation of lever is opposite. The outer circumference of the rope pressing wheel is toothed. The automatic triggering structure is provided with a spring and an energizable coil. Stripes with equal intervals are arranged on the surface of the braking side of the braking portion.
One embodiment of the invention is, as shown in fig. 1 and 2, a braking device for rope traction, which comprises a bracket, an automatic triggering structure 3 fixed with the bracket, a handle structure 1 hinged with the bracket, and a braking structure 2; the handle structure is provided with a handle and a lever and is used for driving the braking structure to rotate when the handle is broken off or returned; one end of the braking structure is hinged with the braking end of the lever, and the other end of the braking structure is movably connected with the automatic triggering structure and is provided with a braking part; the automatic triggering structure is used for bouncing the braking part when power is off.
Preferably, as shown in fig. 2, one end of the handle and the lever are hinged to the middle of the lever, and the handle structure and the bracket are hinged to the middle of the handle. The middle part does not mean the central position of the handle, but the middle part of the body, which is not close to the two ends, can be one half, one third, one fourth or one fifth of the body, which is separated from one end of the body, so that the handle forms a lever structure, and the lever can be driven to move when the handle is broken off and returned.
Or the lever is bent to form an included angle larger than 90 degrees, and the handle is fixed with the lever.
Preferably, as shown in fig. 3 and 4, the lever is bent to form a first branch rod 122 and a second branch rod 121, the two branch rods form an included angle greater than 90 degrees, the first branch rod is provided with a fixed shaft 1221, and a first brake shaft hole 1222 is arranged at the end, and the handle and the lever are fixed on the second branch rod; one end of the brake structure and the first branch rod are hinged to the first brake shaft hole, the other end of the brake structure is provided with a brake part 23 and a trigger shaft hole 24, a brake fixed shaft 22 is arranged between the two ends of the brake structure, and the trigger shaft hole is oblong; the automatic triggering structure 3 and the braking structure are hinged to the triggering shaft hole and used for bouncing up the braking part when the automatic triggering structure is powered off; the handle structure and the braking structure are hinged with the bracket through the fixed shaft and the braking fixed shaft respectively; the automatic triggering structure is fixed on the bracket. Therefore, when the power failure accident of the rope traction device occurs, the braking device can perform braking action at the first time to prevent vertical falling. Meanwhile, the braking part can be pulled down or popped up to safely land by breaking or returning the handle. The second branch rod is provided with a rope pressing shaft hole 1211, and the rope pressing shaft hole is long round.
As shown in fig. 5 and 6, on the basis of any of the above embodiments, preferably, the braking device further includes a rope pressing structure 4 hinged to the bracket, one end of the rope pressing structure is hinged to the rope pressing end of the lever, and the other end is movably provided with a rope pressing wheel. Namely, one end of the lever is connected with the braking structure, and the other end of the lever is connected with the rope pressing structure.
Preferably, the rope pressing structure and the support are hinged to the middle of the rope pressing structure. Therefore, when the handle is broken off, the rope pressing wheel leans inwards, the external rope can be tightly pressed against the rotating wheel, the friction force between the rope and the rope pressing wheel is increased, and the rope pressing wheel cannot generate friction in the descending process, so that the abrasion of the rope cannot be caused. Meanwhile, under the condition of not powering down, the handle can be opened to increase the friction force between the rope and the rotating wheel no matter the rope traction device is lifted or descended, so that the friction displacement between the rope and the rotating wheel can not be generated, and the lifting or descending is faster and safer.
In order to make the sliding between the first branch lever and the braking structure smoother, on the basis of any of the above embodiments, it is preferable that one end of the braking structure connected to the first branch lever is provided with a second braking shaft hole 21, and the second braking shaft hole is oblong.
In order to make the braking structure pull down the braking portion when the handle is broken off, and the braking structure can freely rotate around the braking fixed shaft when the handle is returned to the original position, preferably, the first braking shaft hole is arranged in a bent way and has an angle larger than 90 degrees, the bending direction of the first braking shaft hole is opposite to that of the lever, namely the bending direction is the included angle direction formed by the bent parts, as shown in fig. 2, the bending direction of the first braking shaft hole is towards the left, and the bending direction of the lever is towards the right. The meaning of the bending direction is only explained by using fig. 2, and other technical solutions representing the present application are not limited thereto.
In order to increase the adhesion of the rope pressing structure to the rope, preferably, the outer circumference of the rope pressing wheel is toothed.
Preferably, the automatic triggering structure is provided with a coil, the braking part is made of magnetic metal, and when the automatic triggering structure is electrified, the braking part is pulled down by magnetic force generated by the electrified coil. Preferably, the automatic triggering structure is further provided with a spring, and the spring is used for bouncing the braking part. When the automatic triggering structure is electrified, the magnetic force generated by the coil is greater than the elastic force of the spring, so that the braking part is pulled down by the magnetic force and cannot be ejected, and the external rotating wheel cannot be braked.
Preferably, the braking side surface of the braking part is provided with stripes with uniform intervals. Therefore, a step surface is formed, and the handle can be loosened step by step when the lower braking part is pulled off.
On the basis of any one of the above embodiments, the hinged position between the lever, the brake structure and the rope pressing structure is provided with a long circular shaft hole, for example, the hinged position between the lever and the brake structure and the hinged position between the lever and the rope pressing structure can be arranged on any side hinged with the lever and the rope pressing structure, the long circular shaft hole is rectangular and is in a shape formed by two semicircles with the width as the diameter on the width of the two sides of the long circular shaft hole, the shape is similar to the shape of a court, the middle of the long circular shaft hole is rectangular, and the two sides of the long circular shaft hole are respectively a semicircle. Preferably, a bent axle hole is further formed at the hinge joint of the lever and the braking structure, so that the braking part can be freely bounced and pulled down by the automatic triggering structure when the handle is in a reset state. Specifically, the bent axle hole is disposed at one end of the lever or brake structure.
When the power is on, as shown in fig. 7 and 8, no matter the handle is in a state of being broken off or returning, the braking part is not bounced, the rotating wheel is not braked, and if the rope pressing structure is arranged, the main function of the handle structure is to drive the rope pressing structure to rotate, so that the rope pressing wheel presses towards or is far away from the rotating wheel, and the friction force between the rope and the rotating wheel is increased or reduced. Likewise, it can be seen that the structures of fig. 9, 10 have the same function.
When power is off, as shown in fig. 9 and 10, the braking part will be ejected when the handle is in the reset state, so as to brake the rotating wheel to rotate; when the handle is in an opening state, the brake part is pulled down, so that the rotating wheel cannot be braked to rotate. Likewise, it can be seen that the structures of fig. 7, 8 have the same function.
Therefore, the technical scheme of the application guarantees that the braking structure can control the rotation of the rotating wheel through the braking structure to emergently brake the rotating wheel when power is cut off, thereby realizing safe reduction. In addition, the friction force between the rope and the rotating wheel can be further enhanced when the power is supplied.
The combination of the above features to form various embodiments should be construed as being within the scope of the present invention.
It will be appreciated that modifications and variations are possible to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.
Claims (7)
1. A braking device for rope traction is characterized by comprising a bracket, an automatic triggering structure fixed with the bracket, a handle structure hinged with the bracket, a braking structure and a rope pressing structure;
the handle structure is provided with a handle and a lever and is used for driving the braking structure to rotate when the handle is broken off or returned;
one end of the braking structure is hinged with the braking end of the lever, and the other end of the braking structure is movably connected with the automatic triggering structure and is provided with a braking part;
the automatic trigger structure is used for bouncing the brake part when power is off; the automatic triggering structure is provided with a spring and an electrified coil;
one end of the rope pressing structure is hinged with the rope pressing end of the lever, and the other end of the rope pressing structure is movably provided with a rope pressing wheel.
2. The brake apparatus of claim 1, wherein said lever is bent to an included angle greater than 90 degrees, said handle is fixed to said lever, and said handle, said lever and said brake structure are in a common plane.
3. The brake apparatus of claim 1, wherein one end of said handle is hingedly connected to said lever, and wherein said handle, said lever and said brake structure are not in the same plane.
4. The brake apparatus of claim 1, wherein the end of said brake structure connected to said lever is provided with a second brake shaft hole.
5. The brake apparatus of claim 2, wherein the brake end is provided with a first brake shaft hole, the first brake shaft hole is curved, and the first brake shaft hole is curved in a direction opposite to the curved direction of the lever.
6. The braking device of claim 1, wherein an outer circumference of the pressure sheave is provided in a tooth shape.
7. The brake apparatus according to claim 1, wherein the braking-side surface of the braking portion is provided with stripes at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119551.3A CN106798977B (en) | 2017-03-02 | 2017-03-02 | Braking device for rope traction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119551.3A CN106798977B (en) | 2017-03-02 | 2017-03-02 | Braking device for rope traction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106798977A CN106798977A (en) | 2017-06-06 |
| CN106798977B true CN106798977B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710119551.3A Active CN106798977B (en) | 2017-03-02 | 2017-03-02 | Braking device for rope traction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217493A (en) * | 2018-03-14 | 2018-06-29 | 浙江弘安智能科技有限公司 | A kind of radial compaction mechanism and the lifting gear with the mechanism |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4084350B2 (en) * | 2004-12-21 | 2008-04-30 | 株式会社チルコーポレーション | Winch with manual driving safety mechanism |
| WO2006073462A2 (en) * | 2005-01-06 | 2006-07-13 | Quoin International, Inc. | Powered personnel ascender |
| CN100581978C (en) * | 2008-03-17 | 2010-01-20 | 清华大学 | Pressure roller locking dynamoelectric linkwork |
| CN101766873B (en) * | 2010-01-22 | 2011-12-21 | 北京龙灵科技有限公司 | Automatic braking device for rope driving |
| JP2012046348A (en) * | 2010-08-30 | 2012-03-08 | Kaho Seisakusho:Kk | Manual lowering mechanism of elevator |
| CN201985689U (en) * | 2011-03-18 | 2011-09-21 | 深圳市唯真电机有限公司 | Manually controlled permanent magnet direct current motor provided with electromagnetic brake apparatus and used for hospital bed |
| CN202044663U (en) * | 2011-03-22 | 2011-11-23 | 王泽思 | Escape device |
| CN102188796B (en) * | 2011-05-12 | 2013-07-10 | 杭州双华科技有限公司 | Portable dynamic rope climbing device and rope climbing method |
| CN103072928A (en) * | 2013-01-25 | 2013-05-01 | 东莞市天楠光电科技有限公司 | Multipurpose lifter |
| CN206745765U (en) * | 2017-03-02 | 2017-12-15 | 深圳威枫豪斯新能源科技有限公司 | A kind of brake apparatus for cable traction |
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2017
- 2017-03-02 CN CN201710119551.3A patent/CN106798977B/en active Active
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| CN106798977A (en) | 2017-06-06 |
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Effective date of registration: 20210707 Address after: No.2 Xiangshan Avenue, Ningxi street, Zengcheng District, Guangzhou, Guangdong 510000 Applicant after: Guangzhou younengda Technology Co.,Ltd. Address before: 518115 Room 201, A-2, yalika industrial plant, No. 87, Hengping Road, Henggang street, Longgang District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN WEIFENG HAOSI NEW ENERGY TECHNOLOGY Co.,Ltd. |
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