CN105833437B - Rope descending device - Google Patents
Rope descending device Download PDFInfo
- Publication number
- CN105833437B CN105833437B CN201610372633.4A CN201610372633A CN105833437B CN 105833437 B CN105833437 B CN 105833437B CN 201610372633 A CN201610372633 A CN 201610372633A CN 105833437 B CN105833437 B CN 105833437B
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- rope
- shaped
- adjusting
- speed
- descender
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 230000009194 climbing Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- 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
- A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention relates to a rope descender, in particular to a rock climbing and high-rise escape descending device. The rope braking device comprises a body, a U-shaped lever adjusting mechanism, a speed adjusting button, a rope braking block and a rope braking shaft, and is mainly realized by applying a lever principle in physics, and the double stopping force is provided for a rope through the speed adjusting button, so that a user can effectively control the gliding speed of the body with the minimum force in the descending process. The design has simple structure and simple operation, can control the descending speed, is safe and reliable, and is a necessary tool for rock climbing and high-rise escape.
Description
Technical Field
The invention relates to a descender, in particular to a descender which takes the weight of a human body as gravity and is manually controlled.
Background
In "the safe technical specification of the seat plate type single-person sling for cleaning the outer wall of the building", the types of the descenders nowadays include: rod type, multi-plate type, 8-shaped ring type and buckle type. When the 8-shaped ring type descender is adopted, an operator must lift the rope at the free end upwards when descending; when the rope length is very long, the gravity is very big, and the problem of even appearing lifting the rope sometimes brings very big trouble for construction and operation. In addition, shackle-type descenders are not currently advocated due to safety issues. Although the rod type is safe, in practical use, the operation of an operator is inconvenient when the operator descends; when the descending device is used, an operator winds the free end of the working rope in the lower sliding rope opening to lock the descending device, unlocks the working rope from the lower sliding rope opening to realize descending, but the operator needs to pay attention to pull the working rope downwards to prevent descending when the working rope is unlocked, and great inconvenience is brought to the user due to the operation.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides the safe descender which has the advantages of simple structure, convenient operation and controllable descending speed. It is suitable for climbing rock and descending or escaping from high-altitude trapped people.
The descending device comprises a lever adjusting mechanism and a speed controller, wherein the lever adjusting mechanism and the speed controller are arranged in an inner cavity of a body, a cable penetrates through a cable through hole in the body and winds around a cable stop pin in the middle of the body for one circle, the more the number of the wound circles is, the larger the deceleration acceleration is, the smaller the downward sliding speed is, and then the rope passes through a cable through hole in a lower beam of the body to complete the installation of the cable.
The invention comprises the following contents: a rope descender comprises a body and a rope adjusting structure, wherein the rope adjusting structure is arranged in the body and comprises a U-shaped lever adjusting mechanism, a speed adjusting button, a rope brake block and a rope brake shaft; the body is divided into two hinges, wherein one hinge is internally provided with a U-shaped groove, and the other hinge is internally provided with an adjusting groove matched with the speed adjusting button and the rope brake block; the U-shaped lever adjusting mechanism comprises a U-shaped adjusting rod, two deceleration strips and two force arm rods; two ends of the U-shaped adjusting rod are movably connected with the two deceleration strips through a force arm rod respectively; two ends of the rope stop shaft are connected with the speed reducing strips, and are fixed with one side of the body through bearings, and matched threads are uniformly distributed on the contact side surfaces of the rope stop shaft and the speed reducing strips; the U-shaped lever adjusting mechanism is fixed in the U-shaped groove; the speed adjusting button is arranged on a cross shaft at the bottom of the U-shaped adjusting rod, and one side of the bottom of the speed adjusting button is in contact with the rope brake block.
In the rope descender, the force arm rod is fixed on the two cylindrical bosses in the U-shaped groove of the hinge through the central hole and can rotate around the circle centers of the bosses.
In the rope descender, two ends of the bottom of the cross shaft of the U-shaped adjusting rod are respectively provided with the supporting spring, and the supporting springs are fixed with the body to provide an upward supporting force.
The rope descender is characterized in that the middle position of the upper end of the body is provided with two rope through holes which are matched with each other, the circle center of the rope through hole at the lower end is positioned on the end face of the adjusting groove, and when the rope passes through the rope, the rope can pass through the middle position and pass out from one side, so that the rope is prevented from influencing the operation of a user in the using process.
In the rope descender, one side of the bottom surface of the speed adjusting button is provided with the clamping groove and clamped on the transverse shaft of the U-shaped adjusting rod, so that the rope descender is better positioned on the transverse shaft; a supporting spring is arranged on the middle line of the other side and used for supporting the U-shaped adjusting rod to keep the U-shaped adjusting rod in an upward state all the time; a key groove is formed in the center of the front side face and the center of the rear side face of the speed adjusting button and used for limiting the up-and-down moving distance of the speed adjusting button, and the length range of the key groove is 4-8 mm.
According to the rope descender, one side of the deceleration strip, which is in contact with the rope locking shaft, is an asymmetric chamfer, and small cylindrical patterns are arranged on the chamfer, so that friction force generated when the surface of the rope descender is in relative friction with the rope locking shaft is increased.
When the speed adjusting button is pressed downwards, the rope brake block can move towards the other side of the inclined plane and is in extrusion relation with a rope in a rope through hole at the lower end, a semicircular arc surface is recessed at the position where the other end of the rope brake block is in contact with the rope through hole in the hinge, and the radius of the semicircular arc surface is the same as that of the rope through hole, so that the contact area of the rope brake block and the rope through hole is increased.
In the rope descender, the surface of the rope stopping shaft is provided with knurls.
According to the rope descender, the body is made of aluminum alloy, the rope stopping shaft and the U-shaped lever adjusting mechanism are made of stainless steel, and the rope descender cannot be easily broken or damaged if acting force is large, so that the operation safety is ensured.
In the rope descender, the vertical movement range of the U-shaped adjusting rod is 0-8 mm.
The invention has the beneficial effects that: the rope descender is designed by using a lever principle and a friction force theory in physics as a mechanical basis, has the advantages of simple structure, simple operation, strong practicability, controllable descending speed, safety and reliability, and is a necessary tool for rock climbing and high-rise escape.
Drawings
FIG. 1 perspective view of a rope descender of the invention
FIG. 2 internal structure view of the left leaf of the rope descender body of the present invention
Fig. 3a perspective view of the lever adjustment mechanism of the rope descender of the present invention
FIG. 4 internal structure view of the right page of the rope descender body of the present invention
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings
As shown in fig. 1 and 2, the rope descender is a rectangular frame, and comprises a body 1 and a rope adjusting structure, wherein the rope adjusting structure is arranged inside the body 1 and comprises a U-shaped lever adjusting mechanism 3, a speed adjusting button 2, a rope brake block 4 and a rope brake shaft 5; the body 1 consists of two hinges, a U-shaped groove 1a1 is arranged in the hinge 1a, and a U-shaped lever adjusting mechanism 3 is arranged in the groove through two supporting points at two sides; as shown in fig. 3, a speed adjusting button 2 is arranged at the center of the transverse shaft of the U-shaped lever adjusting mechanism 3; as shown in fig. 4, one end of the speed adjusting button 2 is in contact with the rope brake block 4 and is embedded in the adjusting groove 1b1 in the right hinge 1b, and the space is matched with the sizes of the rope brake block 4 and the speed adjusting button 2, so that the rope brake block is not too tight or too loose; and a rope stop shaft 5 with a knurled surface is arranged at a corresponding position in the middle of the body through bearings at two sides, and two ends of the rope stop shaft are in contact with two tail ends of the U-shaped lever adjusting mechanism 3.
Furthermore, two matched rope through holes are formed in the middle of the upper end of the body 1, one identical rope through hole is formed in one end of the balance beam below the hinge 1b, and the circle center of the rope through hole is located at one end of the adjusting groove 1b 1.
Furthermore, one side of the bottom surface of the speed adjusting button 2 is provided with a clamping groove 2b and clamped on the U-shaped adjusting rod 3a, the optimal matching mode of the two is interference fit, and the middle line of the other side is provided with a supporting spring 7 which always provides upward acting force for the speed adjusting button 2; the center of the front side surface and the rear side surface of the speed adjusting button 2 is provided with a key groove 2a, the length range of the key groove is 4-8 mm, and a rivet penetrates through the middle of the key groove to play a role in positioning the speed adjusting button 2 to move up and down.
Further, the U-shaped lever adjusting mechanism 3 is composed of a U-shaped adjusting rod 3a, a deceleration strip 3b and a force arm rod 3c, and the optimal ratio of the power arm to the resistance arm is 3: 1; two ends of the two arm-of-force rods 3c are respectively rotatably connected with the U-shaped adjusting rod 3a and the speed reducing bar 3b through rivets; one side of the other end of the deceleration strip 3b, which is contacted with the rope stop shaft 5, is provided with an asymmetric chamfer, and a small cylindrical pattern is arranged on the chamfer, so that the friction force during the relative friction with the chamfer is increased; the arm lever 3c is fixed on two cylindrical bosses in the U-shaped groove 1a1 of the hinge 1a through a central hole and can rotate around the center of the boss, and the optimal rotation angle is 60 degrees; two ends of the bottom surface of the U-shaped adjusting rod 3a are respectively provided with a supporting spring 8, which provides upward acting force for the U-shaped adjusting rod 3a to keep the U-shaped adjusting rod in an upward movement state, and the U-shaped adjusting rod can automatically return to the initial position when the speed adjusting button 2 is pressed down.
Furthermore, one end face of the rope brake block 4, which is in contact with the speed adjusting button 2, is provided with an outward extending inclined surface 4b from a central line, the inclined surface extends outwards for 5-10 mm, a concave semi-circular arc surface 4a is arranged at the position, matched with the rope through hole in the hinge 1b, of the other end of the rope brake block, and the radius of the semi-circular arc surface 4a is the same as that of the rope through hole.
When the device is used, the rope only needs to be wound for one circle around the rope stop shaft 5 after passing through the rope through hole at the top end of the device (the larger the number of winding circles generates larger friction force), and then the rope is pulled out through the rope through hole at the bottom; when the speed adjusting button 2 is held by one hand and pressed down during climbing and descending or high-rise escape, two acting forces are generated simultaneously, one force the rope brake block 4 to move to one side of the rope to force the rope to generate friction with the rope so as to slow down or stop the downward sliding of the rope; the other force acts on the U-shaped lever adjusting mechanism 3 to make the U-shaped adjusting rod 3a of the U-shaped lever adjusting mechanism 3 slide downwards, and the inclined surface of the decelerating strip 3b is directly extruded with the rope stopping shaft 5 in a narrow inner cavity of the body 1 by the minimum force through the lever action to generate friction, so that the rope stopping shaft 5 stops rotating, and the rope stopping shaft 5 are forced not to relatively slide or the speed of relative sliding is reduced to realize the speed reduction of the sliding downwards. If the force is well held, the gliding speed can be freely changed, so that the user can glide from high altitude easily and land safely.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited by the foregoing examples, which are provided for purposes of illustration only and are not intended to limit the scope of the invention.
Claims (5)
1. A rope descender comprises a body (1) and a rope adjusting structure, wherein the rope adjusting structure is arranged in the body (1) and comprises a U-shaped lever adjusting mechanism (3), a speed adjusting button (2), a rope brake block (4) and a rope brake shaft (5); the body (1) is divided into two hinges, wherein one hinge is internally provided with a U-shaped groove, and the other hinge is internally provided with an adjusting groove matched with the speed adjusting button (2) and the rope brake block (4); the U-shaped lever adjusting mechanism (3) comprises a U-shaped adjusting rod (3a), two speed reducing strips (3b) and two force arm rods (3c), wherein two ends of the U-shaped adjusting rod (3a) are movably connected with the two speed reducing strips (3b) through the force arm rods (3c) respectively; two ends of the bottom of the transverse shaft of the U-shaped adjusting rod (3a) are respectively provided with a supporting spring (8), and the supporting springs (8) are fixed with the body (1); the arm lever (3c) is fixed on two cylindrical bosses in a U-shaped groove (1a1) of the hinge (1a) through a central hole and can rotate around the circle center of the bosses; two ends of the rope stop shaft (5) are connected with the deceleration strip (3b) and fixed with the body (1) through bearings, and the contact side surfaces of the rope stop shaft (5) and the deceleration strip (3b) are uniformly distributed with matched threads; the U-shaped lever adjusting mechanism (3) is fixed in the U-shaped groove; the speed adjusting button (2) is arranged on a transverse shaft at the bottom of the U-shaped adjusting rod (3a), and one side of the bottom of the speed adjusting button (2) is in contact with the rope brake block (4); the middle position of the upper end of the body (1) is provided with two matched rope through holes, and the circle center of the rope through hole at the lower end is positioned on the end surface of the adjusting groove; the center line of one end face, in contact with the speed adjusting button (2), of the rope brake block (4) starts to be provided with a downward extending inclined plane which extends outwards by 5-10 mm, and the other end of the rope brake block is recessed into a semicircular arc surface at the position in contact with a rope through hole in the hinge (1b), and the radius of the semicircular arc surface is the same as that of the rope through hole; one side of the bottom surface of the speed adjusting button (2) is provided with a clamping groove and is clamped on the transverse shaft of the U-shaped adjusting rod (3), and the middle line of the other side is provided with a supporting spring (7).
2. A rope descender as claimed in claim 1, wherein: one side of the deceleration strip (3b) contacted with the rope stop shaft (5) is an asymmetric chamfer, and small cylindrical patterns are arranged on the chamfer slope.
3. A rope descender as claimed in claim 1, wherein: the surface of the rope stop shaft (5) is provided with knurls.
4. A rope descender as claimed in claim 1, wherein: the rope stopping mechanism is characterized in that the body (1) is made of aluminum alloy, and the rope stopping shaft (5) and the U-shaped lever adjusting mechanism (3) are made of stainless steel.
5. A rope descender as claimed in claim 1, wherein: the range of the up-and-down movement of the U-shaped adjusting rod (3a) is 0-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372633.4A CN105833437B (en) | 2016-05-30 | 2016-05-30 | Rope descending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372633.4A CN105833437B (en) | 2016-05-30 | 2016-05-30 | Rope descending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105833437A CN105833437A (en) | 2016-08-10 |
| CN105833437B true CN105833437B (en) | 2021-05-14 |
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ID=56594996
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610372633.4A Expired - Fee Related CN105833437B (en) | 2016-05-30 | 2016-05-30 | Rope descending device |
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| Country | Link |
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| CN (1) | CN105833437B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823170A (en) * | 2017-02-27 | 2017-06-13 | 湖北阳超机电科技有限公司 | A kind of slow drop escape device of building |
| CN108273203A (en) * | 2017-12-22 | 2018-07-13 | 金华市鸿讯机械工程技术有限公司 | The high building escape equipment of adjustable whereabouts speed per hour |
| CN111544784A (en) * | 2020-05-11 | 2020-08-18 | 河南理工大学 | High-rise fire emergency escape device |
| CN114558254A (en) * | 2022-03-24 | 2022-05-31 | 徐州工程学院 | High-altitude fire-fighting emergency rescue equipment |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2558878B1 (en) * | 1984-01-26 | 1988-09-09 | Koch Albert | ANTI-FALL DEVICE FOR FAST INSERTION AND REMOVAL OF THE ROPE AT ANY PLACE IN THE LATTER |
| WO2003025586A2 (en) * | 2001-09-14 | 2003-03-27 | Safe Stop Systems, Inc. | Descent control device |
| CN2684865Y (en) * | 2004-03-23 | 2005-03-16 | 黄石坤 | Escape lowering device from building |
| CN2738828Y (en) * | 2004-04-22 | 2005-11-09 | 王延杰 | High-building fire-fighting life-saving device |
| JP5030441B2 (en) * | 2006-03-09 | 2012-09-19 | オリンパスメディカルシステムズ株式会社 | Endoscope device |
| JP5250913B2 (en) * | 2010-02-05 | 2013-07-31 | 文治 桝田 | lift device |
| CN201658758U (en) * | 2010-03-18 | 2010-12-01 | 武汉工程大学 | High-rise automatic speed regulation emergency descent device |
| CN201692532U (en) * | 2010-05-19 | 2011-01-05 | 金来兴 | Fire escape device |
| FR3011475B1 (en) * | 2013-10-07 | 2016-03-04 | Simond Ets | DESCENDOR-INSURER AUTOBLOQUANT |
| CN204619206U (en) * | 2015-04-07 | 2015-09-09 | 张亚晨 | A kind of simple and easy limiter of speed |
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2016
- 2016-05-30 CN CN201610372633.4A patent/CN105833437B/en not_active Expired - Fee Related
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| CN105833437A (en) | 2016-08-10 |
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Granted publication date: 20210514 |
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