CN108704223B - Rope slowly lowering device - Google Patents
Rope slowly lowering device Download PDFInfo
- Publication number
- CN108704223B CN108704223B CN201810931664.8A CN201810931664A CN108704223B CN 108704223 B CN108704223 B CN 108704223B CN 201810931664 A CN201810931664 A CN 201810931664A CN 108704223 B CN108704223 B CN 108704223B
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- movable part
- rope
- base body
- right movable
- left movable
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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
-
- 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)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
Abstract
The utility model provides a rope slowly falls device, includes base member, left movable part, right movable part, load-bearing rope, elastomer, the base member is V font structure, including left spout and right spout, left spout and right spout use the V-arrangement central line of base member to be symmetry each other as the symmetry axis, all be equipped with the direction slider on left movable part and the right movable part, the direction slider of left movable part is installed in the left spout of base member, and through the elastomer with the base member is connected, the direction slider of right movable part is installed in the right spout of base member, and through the elastomer with the base member is connected. The invention relates to the field of security protection, in particular to a rope descent control device which has simple operation logic and reliable mechanical structure, is not easy to generate stress concentration on a descent control rope, can restrict the highest descending speed by means of the mechanical structure characteristic of the descent control device, does not generate sliding close to a free falling type, and is a reliable high-rise escape device.
Description
Technical Field
The invention relates to the field of security protection, in particular to a rope descent control device.
Background
In the process of urbanization, high-rise buildings are becoming more and more common. The higher the floor is, the greater the difficulty is when resisting various disasters, especially when natural or artificial disasters such as water, fire, poison, earthquake and the like occur, the elevator power failure or escape passage failure often occurs, the evacuation and rescue of people become very difficult at this time, the high-rise escape facilities are often needed, the high-rise escape facilities can help disaster-stricken people to escape from dangerous buildings in time, and the life and property safety of the masses is protected.
Rope descent control device is one of the hot research subjects of high-rise escape facilities, and good rope descent control device mainly has the following characteristics: firstly, the device is easy to use and learn, common people do not have special training, the device is usually in a mess in the actual escape process, and if the rope descent control device is very complicated to operate, the escape time is definitely delayed; secondly, the descending speed cannot be too fast, and the descending speed is easy to run away if too fast; thirdly, the mechanical structure of the descent control device is required to be reliable enough, the operation logic is required to be stable and reliable, and even if a certain operation error occurs, the descent control device can be saved through simple operation, so that the descent control device cannot slip down or fall at a very high speed; fourthly, the descent control device cannot generate overlarge stress concentration on the rope used during descent control, the contact area between the descent control device and the rope during deceleration or emergency braking is as large as possible, otherwise, the rope is easily broken or peeled, and danger is caused.
The present invention is based on the background that it is generally difficult to achieve all of the above characteristics in a conventional rope descent control device on the market.
Disclosure of Invention
The invention provides a rope descent control device, which has simple operation logic and reliable mechanical structure, is not easy to generate stress concentration on the descent control rope, can restrict the highest descending speed by means of the mechanical structure characteristic of the descent control device, does not generate sliding close to a free falling type, and is a reliable high-rise escape device.
In order to achieve the above object, the present invention has the following technical scheme:
the utility model provides a rope slowly falls device, includes base member, left movable part, right movable part, load-bearing rope, elastomer, the base member is V font structure, including left spout and right spout, left spout and right spout use the V-arrangement central line of base member to be symmetry each other as the symmetry axis, all be equipped with the direction slider on left movable part and the right movable part, the direction slider of left movable part is installed in the left spout of base member, and through the elastomer with the base member is connected, the direction slider of right movable part is installed in the right spout of base member, and through the elastomer with the base member is connected.
When the left movable part and the right movable part slide downwards simultaneously along the left sliding groove and the right sliding groove of the base body under the action of the tensile force of the elastic body, the left movable part and the right movable part can be in fit contact in the left-right direction, the fit surfaces of the left movable part and the right movable part are designed to be curved surfaces capable of being meshed with each other, and if the force-bearing rope is arranged between the fit surfaces of the left movable part and the right movable part, the force-bearing rope can be clamped between the fit surfaces under the action of the tensile force of the elastic body.
Preferably, the elastic body is a spring.
Preferably, the elastic body is a high-strength composite elastic rope, and the elastic rope is commonly used for bungee sports.
Preferably, the curved surface of the left movable part and the right movable part which are meshed with each other is formed by connecting a plurality of rough semi-elliptical surfaces in a reverse end-to-end mode in sequence. This is beneficial for clamping the load-bearing rope, increasing the contact area with the load-bearing rope, reducing stress concentration, and semi-elliptical surface engagement is not an equal line width engagement, the distance between the two engagement surfaces is narrowest at a position near the apex of the major axis of the ellipse, and when the two engagement surfaces approach or separate in the left-right direction, the rate of change of the distance is greatest at this position, facilitating effective clamping and unclamping.
The base body further comprises a grip hole, and the grip hole is positioned at the lower end of the base body.
The left movable part and the right movable part also comprise a bearing plate and bearing hanging holes, and the two bearing hanging holes on the left movable part and the right movable part are respectively positioned on the front surface and the rear surface of the bearing plate of the left movable part and the right movable part.
The base body further comprises a rope through hole and a rope guide strip, wherein the rope through hole vertically penetrates through the middle of the V-shaped bottom of the base body to the lowest end of the base body, the rope guide strip is provided with two opposite and parallel pieces, the two pieces of rope guide strip vertically extend upwards from the V-shaped bottom of the base body to a position close to the upper end of the V-shaped, and the distance between the two pieces of rope guide strip just allows the bearing plate to pass through and is larger than or equal to the diameter of the rope through hole.
The invention further provides a static suspension module which comprises four first hooks, four hanging ropes and a second hook, wherein the four first hooks are respectively hung on four bearing hanging holes of the left movable part and the right movable part, one ends of the four hanging ropes are respectively tied on the four first hooks, and the other ends of the four hanging ropes are homologous to the tail parts of the second hooks.
The initial state of the device is that the fixed end of the force-bearing rope is fixed at the firm position of the high building, and the free end of the force-bearing rope sequentially passes through the meshing surface between the left movable part and the right movable part and the rope through hole at the lower part of the basal body.
Based on the initial state, the operation method for slow descent escape by applying the invention and the working principle thereof are as follows:
step 1: the device is hung on the body and kept suspended and stationary. When the person needs to escape from the high building, the second hook is firstly hung on a firm position on the person to escape, such as an auxiliary force-bearing back belt, at the moment, if the person to escape is suspended, the gravity of the person to escape is applied to the left movable part and the right movable part through the static hanging module, the elastic body is not stretched due to external force, the meshing surface between the left movable part and the right movable part maintains the clamping of the force-bearing rope under the original tension of the elastic body, the person to escape can not slide downwards at the moment, and the whole device is in a static state relative to the force-bearing rope.
Step 2: descending. When slow descent is needed, only the escaper holds the grip Kong Yongli at the lower part of the base body by hands, so that the weight of the escaper is applied to the lower part of the base body instead of the left movable part and the right movable part, the downward pulling force applied to the lower part of the base body is applied to the elastic body, the elastic body is stretched, the base body slides downwards relative to the left movable part and the right movable part, the left movable part and the right movable part actually slide upwards relative to the base body along the left chute and the right chute of the base body according to the principle of relative motion, the meshing surfaces between the left movable part and the right movable part are separated, the clamping action on the force-bearing rope is released, and the escaper slides downwards along the force-bearing rope along the whole device.
Step 3: pulse type slow descent. The evacuator is in a weightlessness state in the sliding process, even if the evacuator grabs the grab handle hole, the evacuator can not apply force to the basal body any more, the elastic body tends to restore to an initial state under the action of self elasticity, so that the left movable part and the right movable part slide downwards relative to the basal body along the left sliding groove and the right sliding groove, the meshing surface between the left movable part and the right movable part is restored to be meshed, so as to clamp the force-bearing rope again, at the moment, if the evacuator does not loosen the grab handle hole, the gravity of the evacuator can be applied to the lower part of the basal body again, so that the evacuator is in a pulse descent process of descending-stopping … … all the time as long as the evacuator grabs the grab handle hole. Of course, if the elastic modulus of the elastomer is appropriate, the frequency of the left and right movable portions' engagement surface grip release is relatively high, and the pulsing process is not so pronounced as if it were descending at a relatively slow rate.
Step 4: the descent is stopped. If the descent is stopped, the evacuee only needs to release the handle hole, and the gravity of the evacuee is not applied to the lower part of the basal body any more, but is applied to the left movable part and the right movable part through the static suspension module, so that the state of the step 1 is returned, and the device can not descend any more.
It should be noted that the strength and the elastic coefficient of the elastomer are required to ensure the following two requirements:
first, the left and right sets of springs should be sufficient to withstand the weight of a normal adult, and should also leave sufficient safety margin.
Secondly, when the elastic body is not subjected to external tension, the meshing surfaces of the left movable part and the right movable part are enough to clamp the bearing rope under the tension of the elastic body; when the elastic body bears the weight of an evacuee, the elongation of the elastic body can ensure that the left movable part and the right movable part move upwards along the left chute and the right chute of the base body, and the meshing surfaces are fully separated so as to release the clamping of the force-bearing rope.
The specific strength and the elastic coefficient of the elastomer are selected according to actual needs.
The beneficial effects of the invention are as follows:
1. the operation logic is simple, the grip handle hole is gripped by force to enable the body weight to be exerted on the matrix to descend, and the grip handle hole is released to stop.
2. The bearing rope is clamped by adopting a plurality of rough semi-elliptic meshed curved surfaces, the structure is reliable, and stress concentration is not easy to occur on the bearing rope.
3. The mechanical structure characteristics and the working principle determine that the device can realize pulse descent control, and the highest descending speed depends on the self mechanical structure characteristics to restrict, so that the device cannot slide downwards in a manner of approaching to a free falling body.
4. The initial state is a static state, and the automatic stop is realized when the operation is not performed, so that the safety and reliability are realized, and the danger caused by misoperation is avoided.
Drawings
FIG. 1 is a schematic three-dimensional representation of a rope descent control device according to the present invention, with the upper right hand directional indicator indicating the orientation information that may be used in the description of the structure and principles of the invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of section A-A based on a top view;
fig. 4 is a schematic structural view of the left movable portion.
Detailed Description
The present invention will be further described with reference to examples of embodiments of the invention and the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, the rope descent control device of the invention comprises a base body 2, a left movable part 3, a right movable part 4, a force-bearing rope 1 and an elastic body 5, wherein the base body 2 is of a V-shaped structure and comprises a left chute 205 and a right chute 201, the left chute 205 and the right chute 201 are symmetrical with each other by taking the V-shaped central line of the base body 2 as a symmetrical axis, guide sliding blocks 303 are respectively arranged on the left movable part 3 and the right movable part 4, the guide sliding blocks 303 of the left movable part 3 are arranged in the left chute 205 of the base body 2 and are connected with the base body 2 through the elastic body 5, and the guide sliding blocks 403 of the right movable part 4 are arranged in the right chute 201 of the base body 2 and are connected with the base body 2 through the elastic body 5.
When the left movable part 3 and the right movable part 4 slide downwards along the left chute 205 and the right chute 201 of the base body 2 simultaneously under the action of the tension of the elastic body 5, the left movable part 3 and the right movable part 4 can be in contact with each other in the left-right direction, the contact surfaces of the left movable part 3 and the right movable part 4 are designed to be curved surfaces 301 which can be meshed with each other, and if the force-bearing rope 1 is already installed between the meshing surfaces of the left movable part 3 and the right movable part 4, the force-bearing rope 1 can be clamped between the meshing surfaces under the action of the tension of the elastic body 5.
Preferably, the elastic body 5 is a spring.
Preferably, the elastic body 5 is a high-strength composite elastic rope, and the elastic rope is commonly used for bungee sports.
Preferably, the curved surface 301 of the left movable portion 3 and the right movable portion 4 that are engaged with each other is formed by sequentially connecting a plurality of rough semi-elliptical surfaces end to end in a reverse direction. This is advantageous for clamping the load-bearing rope 5, increasing the contact area with the load-bearing rope 5, and reducing the stress concentration, and the semi-elliptical surface engagement is not an equal line width engagement, the distance between the two engagement surfaces is narrowest at a position near the apex of the major axis of the ellipse, and the rate of change of the distance is greatest at the position when the two engagement surfaces approach or separate in the left-right direction, so that effective clamping and unclamping can be achieved.
The base body 2 further comprises a grip hole 202, the grip hole 202 being located at the lower end of the base body 2.
The left movable part 3 and the right movable part 4 further comprise a bearing plate 304 and a bearing hanging hole 302, wherein two bearing hanging holes are respectively arranged on the left movable part 3 and the right movable part 4 and are respectively positioned on the front surface and the rear surface of the bearing plate of the left movable part 3 and the right movable part 4.
The base body 2 further comprises a rope through hole 203 and a rope guide strip 204, the rope through hole 203 vertically penetrates to the lowest end of the base body 2 from the middle of the V-shaped bottom of the base body 2, the rope guide strip 204 is provided with two opposite and parallel pieces, the two pieces of rope guide strip 204 vertically extend upwards from the V-shaped bottom of the base body 2 to a position close to the upper end of the V-shaped, and the distance between the two pieces of rope guide strip 204 just allows the bearing plate to pass through and is larger than or equal to the diameter of the rope through hole 203.
Furthermore, the invention also comprises a static suspension module, wherein the static suspension module comprises four first hooks 6, four hanging ropes 7 and four second hooks 8, the four first hooks are respectively hung on the four bearing hanging holes of the left movable part 3 and the right movable part 4, the number of the hanging ropes 7 is four, one ends of the four hanging ropes 7 are respectively tied on the four first hooks 6, and the other ends of the four hanging ropes are in the same family at the tail part of the second hooks 8.
Claims (1)
1. The slow-descending rope device is characterized by comprising a base body, a left movable part, a right movable part, a force-bearing rope and an elastic body, wherein the base body is of a V-shaped structure and comprises a left chute and a right chute, the left chute and the right chute are symmetrical with each other by taking the V-shaped central line of the base body as a symmetrical axis, guide sliding blocks are arranged on the left movable part and the right movable part, the guide sliding blocks of the left movable part are arranged in the left chute of the base body and are connected with the base body through the elastic body, and the guide sliding blocks of the right movable part are arranged in the right chute of the base body and are connected with the base body through the elastic body;
when the left movable part and the right movable part slide downwards along the left chute and the right chute of the base body simultaneously under the action of the tensile force of the elastic body, the left movable part and the right movable part can be in fit contact in the left-right direction, and the fit surfaces of the left movable part and the right movable part are designed to be curved surfaces capable of being meshed with each other;
the curved surfaces of the left movable part and the right movable part which are meshed with each other are formed by sequentially connecting a plurality of rough semi-elliptical surfaces in a reverse end-to-end manner;
the base body further comprises a grip handle hole, and the grip handle hole is positioned at the lower end of the base body;
the left movable part and the right movable part also comprise a bearing plate and bearing hanging holes, and the two bearing hanging holes on the left movable part and the right movable part are respectively positioned on the front surface and the rear surface of the bearing plate of the left movable part and the right movable part;
the base body further comprises a rope through hole and a rope guide strip, wherein the rope through hole vertically penetrates through the middle of the V-shaped bottom of the base body to the lowest end of the base body, the rope guide strip is provided with two opposite and parallel pieces, the two pieces vertically extend upwards from the V-shaped bottom of the base body to a position close to the upper end of the V-shaped, and the distance between the two pieces of rope guide strip just allows the bearing plate to pass through and is larger than or equal to the diameter of the rope through hole;
the device comprises a left movable part, a right movable part, a static suspension module, a first hanging hook, a second hanging hook, a first hanging rope and a second hanging hook, wherein the first hanging hook is four in number and is respectively hung on four bearing hanging holes of the left movable part and the right movable part, one ends of the four hanging ropes are respectively tied on the four first hanging hooks, and the other ends of the four hanging ropes are in common use at the tail parts of the second hanging hooks;
the working principle is as follows:
step 1, hanging the device on a body and keeping the device to be suspended and static; when the person needs to escape from the high building, the second hook is firstly hung at the solid position on the body of the person to escape, at the moment, if the person to escape is suspended, the gravity of the person to escape is applied to the left movable part and the right movable part through the static hanging module, the elastic body is not stretched due to external force, the meshing surface between the left movable part and the right movable part maintains the clamping of the force-bearing rope under the original tension of the elastic body, at the moment, the person to escape is not slid downwards, and the whole device is in a static state relative to the force-bearing rope;
step 2, descending; when slow descent is required, only the escaper holds the grip Kong Yongli at the lower part of the base body by hands, so that the weight of the escaper is applied to the lower part of the base body instead of the left movable part and the right movable part, the downward tensile force applied to the lower part of the base body is applied to the elastic body, the elastic body is stretched, the base body slides downwards relative to the left movable part and the right movable part, the left movable part and the right movable part actually slide upwards relative to the base body along the left chute and the right chute of the base body according to the principle of relative movement, the meshing surfaces between the left movable part and the right movable part are separated, the clamping action on the force-bearing rope is released, and the escaper slides downwards along the force-bearing rope along the whole device;
step 3, pulse descent control; the escaper is in a weightlessness state in the sliding process, even if the escaper grabs the grab handle hole, the escaper can not apply force to the matrix any more, the elastomer tends to restore to an initial state under the action of self elasticity, so that the left movable part and the right movable part slide downwards relative to the matrix along the left sliding groove and the right sliding groove, the meshing surface between the left movable part and the right movable part is restored to be meshed, the force-bearing rope is clamped again, at the moment, if the escaper does not loosen the grab handle hole, the gravity of the escaper can be applied to the lower part of the matrix again, and the state of the step 2 is restored, so that the escaper always grabs the grab handle hole and is in a pulse descent process all the time;
step 4, stopping descending; if the descent is stopped, the escaper only needs to release the handle hole, and the gravity of the escaper is not applied to the lower part of the basal body, but is applied to the left movable part and the right movable part through the static suspension module, so that the device can not descend continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810931664.8A CN108704223B (en) | 2018-08-15 | 2018-08-15 | Rope slowly lowering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810931664.8A CN108704223B (en) | 2018-08-15 | 2018-08-15 | Rope slowly lowering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108704223A CN108704223A (en) | 2018-10-26 |
| CN108704223B true CN108704223B (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810931664.8A Active CN108704223B (en) | 2018-08-15 | 2018-08-15 | Rope slowly lowering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108704223B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112075363B (en) * | 2020-09-08 | 2022-05-27 | 湖北峰鹤生态农业有限公司 | Honeydew collector for picking cliff bee cakes |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007012804U1 (en) * | 2007-09-13 | 2009-02-12 | Sperian Fall Protection Deutschland Gmbh & Co. Kg | Fall Protection System |
| CN102125733B (en) * | 2011-03-31 | 2012-07-04 | 浙江工业大学 | Mechanical type descent control device for escaping from high-rise building |
| CN203001710U (en) * | 2012-07-05 | 2013-06-19 | 唐守山 | Faultless automatic in-situ lifesaving slow descending device |
| CN102976180A (en) * | 2012-12-03 | 2013-03-20 | 福建省连江县迅捷技术孵化有限公司 | Anti-dropping system for construction elevator of building |
| CN104324453B (en) * | 2014-10-22 | 2017-04-19 | 徐振权 | High-rise automatic escape device |
| CN106798976A (en) * | 2015-11-26 | 2017-06-06 | 任树华 | Simple escaping device for high buildings |
| CN208865068U (en) * | 2018-08-15 | 2019-05-17 | 内蒙古工业大学 | A kind of rope ramp-down device |
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2018
- 2018-08-15 CN CN201810931664.8A patent/CN108704223B/en active Active
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| Publication number | Publication date |
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| CN108704223A (en) | 2018-10-26 |
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