CN102258831A - Rope brake descender and rope reeving method - Google Patents
Rope brake descender and rope reeving method Download PDFInfo
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- CN102258831A CN102258831A CN2010101922126A CN201010192212A CN102258831A CN 102258831 A CN102258831 A CN 102258831A CN 2010101922126 A CN2010101922126 A CN 2010101922126A CN 201010192212 A CN201010192212 A CN 201010192212A CN 102258831 A CN102258831 A CN 102258831A
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- 238000000034 method Methods 0.000 title claims description 17
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000004804 winding Methods 0.000 description 8
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses a rope brake descender. The descender comprises a fixed side board, a movable side board, a movable wheel disk and a control handle, wherein, the fixed side board is rotationally connected with the movable side board through a first pin shaft; a fixed wheel disk is fixedly arranged on the fixed side board at the upper part of the movable wheel disk through a second pin shaft; an arched brake swinging sheet is rotationally connected on the fixed side board at the upper part of the fixed wheel disk through a third pin shaft; a connecting arm is arranged on a connecting end of the control handle and the first pin shaft; and the end part of the connecting arm and the corresponding end of the brake swinging sheet are respectively hinged on two ends of a connecting rod so that the connecting rod drives the brake swinging sheet to rotate back and forth around the third pin shaft and meanwhile one of two ends of the brake swinging sheet abuts against the periphery of the fixed wheel disk as the control handle swings back and forth. The rope brake descender has the characteristics of reasonable design and high safety, and is practical and convenient.
Description
Technical Field
The invention relates to a high-altitude slow descending device, in particular to a rope braking descending device. The device can be suitable for outdoor sports, fire rescue, military rescue, high-altitude operation and the like. The invention also relates to a rope threading method of the rope stopping descender.
Background
Fig. 1 shows a conventional general descender, which includes a fixed side plate 100 and a movable side plate 200 rotatably connected to the fixed side plate 100 by a first pin 302, wherein the first pin 302 is sleeved with a movable wheel 300 and a control handle 400, the eccentric cam 300 is located between the fixed side plate 100 and the movable side plate 200, the control handle 400 is located between the fixed side plate 100 and the movable wheel 300, and the control handle 400 is linked with the movable wheel 300; a fixed wheel disc 500 is fixedly arranged on the fixed side plate 100 at the upper part of the movable wheel disc 300 through a second pin shaft 501; the movable sheave 300 has a projection 301, and the fixed sheave 500 has a flat stopper 502 on the outer peripheral surface on one side of the movable sheave 300. In use, the descending rope 600 is wound from the descending suspension point (not shown), sequentially from the lower part of the movable sheave 300 upwards through the protruding part 301 of the movable sheave 300 to the upper part of the fixed sheave 500 and downwards to remain as the movable end of the rope, and the whole rope is wound in an "S" shape. When the rope descends, a user who is trained professionally can control the descending speed by pulling the rope with hands. As shown in fig. 1, when the human body moves downward, the rope 600 moves upward with respect to the descender, and the movable sheave 300 rotates upward due to the frictional force between the rope 600 and the movable sheave 300, the protruding portion 301 thereof abuts against the stopper 502 provided on the fixed sheave 500 to slow down or automatically stop the rope 600; the downward sliding motion can be resumed by pressing the control handle 400.
Through the whole descending process, the existing descenders have the function of automatic stopping, but have strict requirements on users, particularly on the aspect of psychology. Because a user in a sudden descent is most likely to be conscious of gripping the control handle 400 and most likely unaware of releasing it due to human instinct in the face of an emergency or emergency. However, depending on the configuration of the prior descender, the rope 600 may instead be able to pass through the descender more quickly if the control handle 400 is grasped, which may also be self evident as a result.
In addition, as can be seen from fig. 1, in the prior descender, in use, the winding of the descent rope 600 is strictly and exclusively specified, namely, the descent rope passes through the movable sheave 300 from the side of the protruding part 301 of the movable sheave 300 downwards and then passes through the fixed sheave 500 upwards; on the contrary, if the user is not strictly trained or carelessly winds the descending rope reversely, the friction force between the rope 600 and the movable sheave 300 during descending cannot automatically stop the rope, but increases the difficulty of stopping the rope artificially, and the possibility of accidents is greatly increased.
Disclosure of Invention
In view of the safety issues with existing descenders in use, it is an object of the present invention to provide a rope stop descender that automatically catches the rope during use, ensuring that the user does not fall quickly along the rope, even if the user accidentally grips or releases the control handle in a hurry, or inadvertently installs the rope in the descender in error.
Another object of the present invention is to provide a rope threading method of the rope stop descender.
In order to achieve the first purpose, the rope braking descender provided by the invention comprises a fixed side plate and a movable side plate which is rotationally connected with the fixed side plate through a first pin shaft, wherein a movable wheel disc and a control handle are sleeved on the first pin shaft, the periphery of the movable wheel disc is provided with a groove and can rotate along with the movement of a rope, the movable wheel disc is positioned between the fixed side plate and the movable side plate, and the control handle is linked with the movable wheel disc; a fixed wheel disc with a groove on the periphery is fixedly arranged on the fixed side plate at the upper part of the movable wheel disc through a second pin shaft; wherein,
the fixed side plate on the upper portion of the fixed wheel disc is rotatably connected with an arched braking and stopping swinging piece through a third pin shaft, a connecting arm is arranged at the connecting end of the control handle and the first pin shaft, the end portion of the connecting arm and the corresponding end of the braking and stopping swinging piece are respectively hinged to two ends of a connecting rod, so that along with the reciprocating swing of the control handle, the connecting rod drives the braking and stopping swinging piece to rotate around the third pin shaft in a reciprocating mode, and one end of two ends of the braking and stopping swinging piece abuts against the periphery of the fixed wheel disc.
The movable wheel disc is provided with a first straight part on the half circumference far away from the fixed wheel disc.
The movable wheel disc is also provided with a second straight part which is symmetrically arranged with the first straight part on the half circumference close to the fixed wheel disc.
The control handle set up in the outside of fixed curb plate, be provided with a connecting hole on the linking arm, control handle through pass the fourth round pin axle of connecting hole with eccentric cam is connected as an organic wholely.
A clamping groove is formed in the edge of the fixed side plate between the first pin shaft and the fourth pin shaft, and the fourth pin shaft is located in the clamping groove and can move in the clamping groove along with the action of the control handle.
And a nylon sleeve is arranged between the movable wheel disc and the first pin shaft.
In order to achieve the second object of the present invention, the present invention provides a rope threading method of the rope stop descender, including:
a rope for descending passes through the lower part of the movable wheel disc from top to bottom anticlockwise, then passes through the upper part of the fixed wheel disc clockwise and then passes through the upper part of the fixed wheel disc downwards, and the whole rope is wound in an S shape; or the rope for descending passes through the lower part of the movable wheel disc from top to bottom clockwise, then passes through the upper part of the fixed wheel disc anticlockwise, and then passes through the fixed wheel disc downwards, and the whole body is wound in an inverse S shape.
The rope stopping descender provided by the invention at least has the following beneficial effects:
the bow-shaped stopping swinging piece arranged on the upper part of the fixed wheel disc can stop the rope on both sides of the fixed wheel disc. Therefore, in the using process, even if a user accidentally grips the control handle or looses the control handle in a hurry or carelessly installs the rope on the descender wrongly, the rope braking descender automatically clamps the rope, the user is prevented from falling along the rope quickly, and the safety is high.
The rope threading and winding method of the rope stopping descender provided by the invention at least has the following beneficial effects:
the rope penetrating and winding method of the rope stopping descender provided by the invention has the advantages that the rope penetrating and winding is not limited to only one mode, the use is convenient and simple, and meanwhile, the occurrence of safety accidents caused by incorrect rope penetrating and winding modes is avoided.
Drawings
FIG. 1 is a schematic diagram of a prior art check descender.
Fig. 2 is a schematic front view of a rope stop descender in an embodiment of the invention.
Fig. 3 is a rear view of a rope stop descender in an embodiment of the present invention.
Fig. 4 is a schematic view of a fixed side plate structure of a rope stop descender in an embodiment of the present invention.
Fig. 5 is a schematic view of the control handle structure of the rope stop descender in an embodiment of the present invention.
Fig. 6 is a front view of the movable sheave of the rope stop descender in an embodiment of the present invention.
Fig. 7 is a rear view of the movable sheave of the rope stop descender in an embodiment of the present invention.
Fig. 8 is a schematic diagram of rope reeving for the rope stop descender in an embodiment of the present invention.
Fig. 9 is a schematic diagram of the rope stop descender of an embodiment of the present invention showing completion of rope reeving.
Fig. 10 is an enlarged view of a rope stop descender in an embodiment of the invention attached to a user.
Fig. 11 is a view showing a state of use in which a single person descends using the rope stop descender in the embodiment of the present invention.
Fig. 12 is a diagram showing a state of use of a rope stop descender for two persons who use the embodiment of the present invention for descending.
Fig. 13 is a diagram of the use of the rope brake descender in the embodiment of the invention for rescuing the injured person to evacuate downwards.
Fig. 14 is a diagram showing a state of use of the rope stop descender in operation suspended at high altitude.
Fig. 15 is a flow chart of a process for producing the rope stop descender of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 2 and 3, the rope-made stopper descending device provided by the invention comprises a fixed side plate 1 and a movable side plate 2 rotatably connected with the fixed side plate 1 through a first pin shaft 32, wherein a movable wheel disc 3 and a control handle 4 which are provided with a groove (not shown) at the periphery and can rotate along with the movement of a rope are sleeved on the first pin shaft 32, the movable wheel disc 3 is positioned between the fixed side plate 1 and the movable side plate 2, and the control handle 4 is linked with the movable wheel disc 3; a fixed wheel disc 5 with a groove on the periphery is fixedly arranged on the fixed side plate 1 at the upper part of the movable wheel disc 3 through a second pin shaft 51; the fixed side plate 1 on the upper portion of the fixed wheel disc 5 is rotatably connected with an arched braking and stopping swing piece 8 through a third pin shaft 11, a connecting arm 42 is arranged at the connecting end of the control handle 4 and the first pin shaft 32, the end portion of the connecting arm 42 and the corresponding end 82 of the braking and stopping swing piece 8 are respectively hinged to two ends of a connecting rod 9, so that along with the reciprocating swing of the control handle 4, the connecting rod 9 drives the braking and stopping swing piece 8 to rotate around the third pin shaft 11 in a reciprocating mode, and one end of two ends 81 and 82 of the braking and stopping swing piece 8 abuts against the periphery of the fixed wheel disc 5.
As shown in fig. 2, the descending rope 6 passes through the lower portion of the movable wheel disc 3 counterclockwise from top to bottom, then passes through the upper portion of the fixed wheel disc 5 counterclockwise, and then passes through the upper portion of the fixed wheel disc 5 clockwise, and then remains as the movable end of the rope downward, when descending, the braking descender slides down along with the human body, the rope 6 moves upward relative to the braking descender, because friction exists between the rope 6 and the movable wheel disc 3, in the rope winding method and the view display shown in fig. 2, the movable wheel disc 3 rotates clockwise, thereby driving the control handle 4 to open upward, further, the control handle 4 pulls the end 82 of the braking pendulum 8 downward through the driving link 9 until touching the rope 6, and the continuous extrusion force of the end 82 to the rope 6 will cause continuous friction until stopping descending, that is, the braking descender of the present invention also has an automatic braking function. In addition, when a user accidentally grasps and grips the control handle 4 when falling in a cluttered situation, the control handle 4 pushes the end part 82 upwards through the connecting rod 9, at the moment, the braking swing sheet 8 rotates around the third pin shaft 11, meanwhile, the end part 81 sinks until touching the rope, and similarly to the end part 82, the end part 81 can also directly brake the rope to prevent the user from further falling, and the safety precaution effect is achieved. It is envisaged that if the user winds the cable in the other, opposite direction, it is foreseen that the movable sheave 3 will rotate anticlockwise, which is similar to the situation in which the user grips the control handle 4 in panic, the end 81 will continuously press the cable 6 against the fixed sheave 5, due to the friction of the cable 6, slowing down the cable until it stops.
From the above discussion, the rotational force of the rope 6 applied to the movable sheave 3 directly affects the braking force of the braking pendulum 8, and therefore, as an improvement, the movable sheave 3 may be considered to be processed into an irregular disk type, and specifically, as shown in fig. 2, the movable sheave 3 has a first flat portion 21 on a half circumference away from the fixed sheave 5. The first flat portion 21 is provided to preferably increase the rotational force applied to the movable disk 3 by the rope 6, thereby preferably stopping the rope by driving the stopping pendulum 8 by means of the link 9. Also, as a further modification, the movable sheave 3 has a second flat portion 22 disposed symmetrically with the first flat portion 21 on a half circumference near the fixed sheave 5.
Similar to the prior art, in the present invention, the control handle 4 must be interlocked with the movable wheel 3, that is, when the user pulls the control handle 4, the movable wheel 3 can also rotate or stop, which requires the control handle 4 and the movable wheel 3 to be fixedly connected together. In the invention, the control handle 4 and the movable wheel disc 3 can be simultaneously positioned between the fixed side plate 1 and the movable side plate 2 and fixedly connected together. However, the connecting arm 42 and the check pendulum 8 of the above structure must have a longitudinal length larger than the diameter of the fixed wheel disc 5, otherwise the connecting rod 9 may collide with the fixed wheel disc 5 to affect the use, and therefore, as a further improvement of the present invention, as shown in fig. 3, 5 and 7, the control handle 4 is disposed at the outer side of the fixed side plate 1, the connecting arm 42 is provided with a connecting hole 44, and the control handle 4 is connected to the movable wheel disc 3 through the fourth pin shaft 17 passing through the connecting hole 44. The hole 35 in fig. 7 is intended to cooperate with said fourth pin 17.
When the control handle 4 is located at the outer side of the fixed side plate 1, the fourth pin 17 passes through the outer side of the edge of the fixed side plate 1 and is connected to the movable wheel disc 3, so that when the control handle 4 is opened and closed, the fourth pin 17 may collide with the edge of the fixed side plate 1, and therefore, as a further improvement of the present invention, as shown in fig. 3 and 4, a slot 16 is provided on the edge of the fixed side plate 1 between the first pin 32 and the fourth pin 17, and the fourth pin 17 is located in the slot 16 and can move in the slot 16 with the action of the control handle 4. Fig. 4 also shows that the fixed side plate 1 is respectively used for connecting with the first pin shaft 32
Preferably, a nylon sleeve is arranged between the movable wheel 4 and the first pin 32. As shown in fig. 6, a nylon sleeve 34 for preventing abrasion is disposed on the inner side of the hole 33 of the movable wheel disc 4 for passing through the pin shaft 32.
In addition, the invention also provides a rope threading and winding method of the rope stopping descender, which comprises the following steps:
fig. 8 is a schematic diagram of rope reeving for the rope stop descender in an embodiment of the present invention. Fig. 9 is a schematic diagram of the rope stop descender of an embodiment of the present invention showing completion of rope reeving. Fig. 10 is an enlarged view of a rope stop descender in an embodiment of the invention attached to a user. As shown in the figure, when in use, the rope stopping descender a is connected to a safety belt c on the body of a user through a safety buckle b, and when the rope is specifically threaded and wound, firstly, the rope 6 for descending passes through the lower part of the movable wheel disc 4 from top to bottom, anticlockwise, then passes through the upper part of the fixed wheel disc 5 upwards, then passes through the upper part of the fixed wheel disc 5 downwards, and is integrally wound in an S shape. The rope stopping descender of the invention is used by a single person in the most basic use and descends from a high place by a single rope, and fig. 11 is a using state diagram of the rope stopping descender in the embodiment of the invention used by a single person. In addition, the device can also be used by two persons for rescue operation, fire-fighting operation and the like, as shown in fig. 12; or for use in rescuing injured persons for evacuation downwardly, as shown in fig. 13; or for hovering the user for work at altitude, as shown in fig. 14.
The rope stopping descender of the invention has another penetrating and winding method, namely, a rope 6 for descending passes through the lower part of the movable wheel disc 4 from top to bottom clockwise, then passes through the upper part of the fixed wheel disc 5 anticlockwise and then passes through downwards, and the whole rope is wound in an inverse S shape.
Fig. 15 is a flow chart of a production process of the rope stopping descender, and as shown in the figure, the main material of the rope stopping descender is No. 7075 aviation aluminum, and the rope stopping descender is manufactured by the procedures of stamping forming, heat treatment, edge cutting forming, polishing, anti-oxidation treatment and the like, so that the rope stopping descender is good in quality.
While there has been described what are believed to be the preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the principles of the invention, and it is intended to cover all such changes and modifications as fall within the true scope of the invention.
Claims (8)
1. A rope braking descender comprises a fixed side plate and a movable side plate which is rotationally connected with the fixed side plate through a first pin shaft, wherein a movable wheel disc and a control handle are sleeved on the first pin shaft, the periphery of the movable wheel disc is provided with a groove and can rotate along with the movement of a rope, the movable wheel disc is positioned between the fixed side plate and the movable side plate, and the control handle is linked with the movable wheel disc; a fixed wheel disc with a groove on the periphery is fixedly arranged on the fixed side plate at the upper part of the movable wheel disc through a second pin shaft; the method is characterized in that:
the fixed side plate on the upper portion of the fixed wheel disc is rotatably connected with an arched braking and stopping swinging piece through a third pin shaft, a connecting arm is arranged at the connecting end of the control handle and the first pin shaft, the end portion of the connecting arm and the corresponding end of the braking and stopping swinging piece are respectively hinged to two ends of a connecting rod, so that along with the reciprocating swing of the control handle, the connecting rod drives the braking and stopping swinging piece to rotate around the third pin shaft in a reciprocating mode, and one end of two ends of the braking and stopping swinging piece abuts against the periphery of the fixed wheel disc.
2. The rope stop descender of claim 1 wherein the movable sheave has a first flat portion on a half of the circumference away from the fixed sheave.
3. The rope stop descender of claim 2 wherein the movable sheave also has a second straight portion disposed symmetrically with the first straight portion on a half of the circumference adjacent the fixed sheave.
4. The rope stop descender of claim 1 wherein the control handle is disposed outside the fixed side plate, the connecting arm having a connecting hole formed therein, the control handle being integrally connected to the eccentric cam by a fourth pin passing through the connecting hole.
5. The rope brake descender of claim 4 wherein a slot is provided in an edge of the fixed side plate between the first pin and the fourth pin, the fourth pin being located in the slot and movable within the slot in response to actuation of the control handle.
6. A rope brake descender as claimed in any one of claims 1 to 5 wherein a nylon sleeve is provided between the movable sheave and the first pin.
7. A rope reeving method for a rope stop descender of any of claims 1 to 6, comprising: and (3) a rope for descending passes through the lower part of the movable wheel disc from top to bottom anticlockwise, then passes through the upper part of the fixed wheel disc clockwise and then passes through the upper part of the fixed wheel disc downwards, and the whole rope is wound in an S shape.
8. A rope reeving method for a rope stop descender of any of claims 1 to 6, comprising: and (3) passing a rope for descending from top to bottom, passing the rope for descending clockwise through the lower part of the movable wheel disc, then passing the rope for descending upwards, then passing the rope for descending anticlockwise through the upper part of the fixed wheel disc, and then descending downwards, wherein the whole rope is wound in an inverse S shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192212 CN102258831B (en) | 2010-05-28 | 2010-05-28 | Rope brake descender and rope reeving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192212 CN102258831B (en) | 2010-05-28 | 2010-05-28 | Rope brake descender and rope reeving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102258831A true CN102258831A (en) | 2011-11-30 |
| CN102258831B CN102258831B (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010192212 Active CN102258831B (en) | 2010-05-28 | 2010-05-28 | Rope brake descender and rope reeving method |
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| Country | Link |
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| CN (1) | CN102258831B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014015552A1 (en) * | 2012-07-26 | 2014-01-30 | He Shaodun | Suspension device |
| CN103566493A (en) * | 2012-08-03 | 2014-02-12 | 何少敦 | Suspension device |
| CN103785122A (en) * | 2012-10-26 | 2014-05-14 | 何少敦 | Cross-section-variable rope reel and hanging device thereof |
| CN105056416A (en) * | 2015-09-15 | 2015-11-18 | 福建省东山县辉永泰体育用品实业有限公司 | Lifting-controllable protector |
| CN106193778A (en) * | 2015-12-10 | 2016-12-07 | 国家电网公司 | Slack rope device |
| CN107308562A (en) * | 2017-07-07 | 2017-11-03 | 湖北文理学院 | It is a kind of can swelling fixation pricker and fulcrum stringer equipped with the fixation pricker |
| CN107320865A (en) * | 2017-07-07 | 2017-11-07 | 马兵 | The quick rope closing tensioning apparatus of rope for crossing rescue for fire-fighting |
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| EP0303388A1 (en) * | 1987-08-12 | 1989-02-15 | Boris Rogelja | Descender for abseiling |
| US5597052A (en) * | 1995-08-15 | 1997-01-28 | Rogleja; Boris | Descender |
| EP1259300A1 (en) * | 1999-12-15 | 2002-11-27 | Boris Rogelja | Descender with two-way locking lever |
| CN201727854U (en) * | 2010-05-28 | 2011-02-02 | 刘文辉 | Rope brake descender |
-
2010
- 2010-05-28 CN CN 201010192212 patent/CN102258831B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303388A1 (en) * | 1987-08-12 | 1989-02-15 | Boris Rogelja | Descender for abseiling |
| US5597052A (en) * | 1995-08-15 | 1997-01-28 | Rogleja; Boris | Descender |
| EP1259300A1 (en) * | 1999-12-15 | 2002-11-27 | Boris Rogelja | Descender with two-way locking lever |
| EP1259300A4 (en) * | 1999-12-15 | 2003-03-19 | Boris Rogelja | Descender with two-way locking lever |
| CN201727854U (en) * | 2010-05-28 | 2011-02-02 | 刘文辉 | Rope brake descender |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014015552A1 (en) * | 2012-07-26 | 2014-01-30 | He Shaodun | Suspension device |
| CN103566492A (en) * | 2012-07-26 | 2014-02-12 | 何少敦 | Suspension device |
| CN103566492B (en) * | 2012-07-26 | 2015-10-07 | 何少敦 | A kind of suspender |
| CN103566493A (en) * | 2012-08-03 | 2014-02-12 | 何少敦 | Suspension device |
| CN103566493B (en) * | 2012-08-03 | 2015-09-23 | 何少敦 | A kind of suspender |
| CN103785122A (en) * | 2012-10-26 | 2014-05-14 | 何少敦 | Cross-section-variable rope reel and hanging device thereof |
| CN105056416A (en) * | 2015-09-15 | 2015-11-18 | 福建省东山县辉永泰体育用品实业有限公司 | Lifting-controllable protector |
| CN106193778A (en) * | 2015-12-10 | 2016-12-07 | 国家电网公司 | Slack rope device |
| CN107308562A (en) * | 2017-07-07 | 2017-11-03 | 湖北文理学院 | It is a kind of can swelling fixation pricker and fulcrum stringer equipped with the fixation pricker |
| CN107320865A (en) * | 2017-07-07 | 2017-11-07 | 马兵 | The quick rope closing tensioning apparatus of rope for crossing rescue for fire-fighting |
| CN107308562B (en) * | 2017-07-07 | 2022-08-23 | 湖北文理学院 | Expansible fixing drill rod and fulcrum erecting device provided with same |
| CN107320865B (en) * | 2017-07-07 | 2022-09-30 | 马一兵 | A rope overspeed device tensioner is received fast for fire control cross rescue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102258831B (en) | 2013-07-10 |
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Application publication date: 20111130 Assignee: FUJIAN DONGSHAN COUNTY HUIYONGTAI SPORTS GOODS CO., LTD. Assignor: Liu Wenhui Contract record no.: 2013350000170 Denomination of invention: Rope brake descender and rope reeving method Granted publication date: 20130710 License type: Exclusive License Record date: 20131219 |
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