CN110585613A - High-rise escape device - Google Patents
High-rise escape device Download PDFInfo
- Publication number
- CN110585613A CN110585613A CN201910722306.0A CN201910722306A CN110585613A CN 110585613 A CN110585613 A CN 110585613A CN 201910722306 A CN201910722306 A CN 201910722306A CN 110585613 A CN110585613 A CN 110585613A
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- friction
- friction block
- end plate
- disc
- spring
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- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- A62B1/08—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
- A62B1/10—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
Abstract
The invention discloses a high-rise escape device which comprises a transmission mechanism, a self-speed-limiting mechanism and an automatic rope recovery mechanism. The transmission mechanism comprises a rope wheel disc, a low-speed gear, a fixed shaft, a high-speed gear, a connecting shaft, a first end plate and a second end plate; the self-speed limiting mechanism comprises a friction disc, a pre-tightening friction block, a centrifugal friction block, a first spring and a second spring; the automatic recovery mechanism comprises a volute spiral spring, a volute spiral spring fixing ring and a volute spiral spring fixing block. The self-speed limiting mechanism can automatically adjust the descending speed of descending personnel by generating friction resistance with the friction disc through the pre-tightening friction block and the centrifugal friction block respectively, ensures the descending safety of escape personnel, and can drive the safety rope to be automatically recovered through the reverse torque of the volute spiral spring after the escape personnel land and wind the safety rope on the rope wheel disc to prepare for the use of next personnel.
Description
Technical Field
The invention relates to the technical field of high-rise escape devices, in particular to a high-rise escape device.
Background
With the development of times, high buildings in various cities stand. Accidents such as fire disasters and earthquakes also occur occasionally, the internal channels of common high-rise buildings are complicated, once a fire disaster occurs, the ventilation openings in the buildings can rapidly expand fire and smoke, the fire and smoke can be rapidly diffused to all corners, once the smoke is covered, the people can feel difficult to walk, and the people can not get out of the building when being trapped on the building.
In order to solve the problems, the escape device is produced. However, at present, the initial lowering speed of the rope in the escape apparatus is too fast, and the speed is unstable during the falling process.
Therefore, how to avoid the too fast initial descending speed of the rope in the escape apparatus and improve the speed stability in the descending process of the rope is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a high-rise escape apparatus, which can prevent an initial lowering speed of a rope in the escape apparatus from being too fast, and improve speed stability of the rope in a descending process.
In order to achieve the above object, the present invention provides the following solutions:
a high-rise escape apparatus, comprising:
the safety rope is wound on the rotating part and can be wound and unwound along with the rotation of the rotating part;
the self-speed limiting mechanism comprises a friction disc, a pre-tightening friction block and a centrifugal friction block, the pre-tightening friction block and the centrifugal friction block are both connected with the rotating part,
the friction disc is arranged on the mounting part and covers the pre-tightening friction block and the centrifugal friction block,
the pre-tightening friction block and the inner wall of the friction disc have a preset pre-tightening friction force, and the centrifugal friction block and the inner wall of the friction disc can generate friction torque under the action of centrifugal force.
In a specific embodiment, the self-limiting mechanism further comprises a first screw, a first spring, a second screw and a second spring;
the bottom end of the pre-tightening friction block is provided with a first mounting groove, the first spring is arranged in the first mounting groove, the screw thread of the first screw penetrates through the pre-tightening friction block, the screw of the first screw is internally sleeved in the first spring and is rotatably connected with the rotating part along the axial lead of the first screw, and the first spring is pressed on the rotating part;
the second mounting groove has been seted up on the top of centrifugal friction piece, the second spring is arranged in the second mounting groove, the screw rod slidable of second screw passes in proper order the second spring with centrifugal friction piece, with rotation portion threaded connection, the nut of second screw will the second spring pressure is established in the second mounting groove.
In another specific embodiment, the number of the pre-tightening friction blocks and the centrifugal friction blocks is at least 2, and the pre-tightening friction blocks and the centrifugal friction blocks are arranged around the rotating part at intervals;
and/or
The pre-tightening friction block is provided with a first heat dissipation stripe groove;
and/or
And a second heat dissipation stripe groove is formed in the centrifugal friction block.
In another specific embodiment, the mounting portion includes a first end plate and a second end plate;
the first end plate and the second end plate are separated from each other by a preset distance and are connected through bolts;
the friction disk is mounted on the second end plate.
In another specific embodiment, the mounting portion further comprises a housing distance sleeve;
the housing distance sleeve is fixed between the first end plate and the second end plate by bolts.
In another specific embodiment, the rotating part includes:
the two ends of the fixed shaft are respectively fixed on the first end plate and the second end plate;
the rope wheel disc is rotatably arranged on the fixed shaft, and the safety rope can be wound on the rope wheel disc;
the low-speed gear is rotatably arranged on the fixed shaft and is fixedly connected with the rope wheel disc;
a high speed gear engaged with the low speed gear, the high speed gear having a radius smaller than a radius of the low speed gear;
the connecting shaft is rotatably arranged on the second end plate and extends into the friction disc, one end of the connecting shaft is fixedly connected with the high-speed gear, and the other end of the connecting shaft is used for connecting the pre-tightening friction block and the centrifugal friction block.
In another particular embodiment, the sheave disc includes:
the rope wheel disc middle shaft is rotatably arranged on the fixed shaft and used for winding the safety rope;
the rope sheave disc baffle is fixed on two sides of the central shaft of the rope sheave disc.
In another specific embodiment, the high-rise escape apparatus further comprises an automatic recovery mechanism;
the automatic recovery mechanism is installed on the installation part, and the automatic recovery mechanism is used for automatically recovering and winding the safety rope on the rotating part.
In another embodiment, the automatic recovery mechanism comprises a volute spring;
the inner ring of the volute spiral spring is fixedly connected with the rope pulley disc;
the outer end of the volute spiral spring is fixedly connected with the first end plate.
In another specific embodiment, the automatic recovery mechanism further comprises a scroll spring fixing ring and a scroll spring fixing block;
the scroll spring fixing ring is fixed on the first end plate, and the outer end of the scroll spring fixing ring is connected;
the volute spiral spring fixing block is fixed with the rope wheel disc, and the inner ring of the volute spiral spring is connected with the volute spiral spring fixing block.
The various embodiments according to the invention can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the invention and are part of the specific embodiments of the invention.
Without being limited to any theory, it can be seen from the above disclosure that, the high-rise escape device disclosed by the invention has a certain pretightening friction force between the pretightening friction block and the inner wall of the friction disc, and the pretightening friction block is connected with the rotating part, so that the pretightening friction block gives a torque to the rotating part to prevent the rotating part from rotating, and the safety rope is prevented from being quickly lowered in an initial state. Along with the transfer of safety rope, because centrifugal friction piece can produce friction torque with the inner wall of friction disk under the effect of centrifugal force, consequently, when the speed that safety rope transferred was too fast, centrifugal friction piece can produce friction torque with the inner wall of friction disk, and centrifugal friction piece is connected with rotation portion, consequently, can give rotation portion one and hinder its pivoted friction torque, reduces the speed of transferring of safety rope to improve the stability that safety rope transferred.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic sectional view of a high-rise escape apparatus according to the present invention;
FIG. 2 is a schematic cross-sectional view of a self-speed limiting mechanism of the high-rise escape apparatus according to the present invention;
fig. 3 is a schematic three-dimensional structure diagram of the high-rise escape apparatus provided by the invention.
Wherein, in fig. 1-3:
the automatic transmission mechanism comprises a transmission mechanism 1, a mounting portion 101, a rotating portion 102, a self-speed limiting mechanism 2, a friction disc 201, a pre-tightening friction block 202, a centrifugal friction block 203, a first screw 204, a first spring 205, a second screw 206, a second spring 207, a first mounting groove 2021, a second mounting groove 2031, a first heat dissipation groove 2022, a second heat dissipation groove 2032, a first end plate 1011, a second end plate 1012, a shell distance sleeve 1013, a fixed shaft 1021, a rope pulley 1022, a low-speed gear 1023, a high-speed gear 1024, a connecting shaft 1025, a rope pulley central shaft 10221, a rope pulley baffle 10222, an automatic recovery mechanism 4, a volute spring 401, a volute spring volute fixing ring 402 and a spring fixing block 403.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides a high-rise escape device which controls the descending speed of a safety rope through friction torque generated between a pre-tightening friction block and a centrifugal friction block and a friction disc respectively, and the friction torque generated between the pre-tightening friction block and the friction disc enables the speed of a person to be controlled within a reasonable range when the person just begins to fall; when the falling speed exceeds the limit value, the spring in the centrifugal friction block expands outwards due to centrifugal force, the centrifugal friction block is in contact with the friction disc to generate friction torque, the falling speed is reduced, after the falling speed is reduced, the centrifugal force of the centrifugal friction block and the spring is reduced, the safety rope continuously falls, and therefore the falling speed of the safety rope is always kept within a safety range. And because the spiral spring is the tensioning energy storage of in-process that falls, personnel are after the safety is descended, and spiral spring kick-backs, drives the rope and twines on the rope sheave again simultaneously to next personnel use.
Example one
As shown in figures 1-3, the invention discloses a high-rise escape device. The high-rise escape device comprises a transmission mechanism 1 and a self-speed limiting mechanism 2.
The transmission mechanism 1 is used for installing a safety rope. Specifically, the transmission mechanism 1 includes a mounting portion 101 and a rotating portion 102. The mounting portion 101 provides a mounting space for the rotating portion 102.
The mounting part 101 may be two plates connected together, and the rotating part 102 may be rotatably mounted between the two plates; the rotating part 102 may be a housing, and may be rotatably installed in the housing.
The rotating part 102 is rotatably installed on the installation part 101, the safety rope is wound on the rotating part 102 and can be wound and unwound along with the rotation of the rotating part 102, and the safety rope is smoothly transferred.
The self-speed limiting mechanism 2 comprises a friction disc 201, a pre-tightening friction block 202 and a centrifugal friction block 203, wherein the pre-tightening friction block 202 and the centrifugal friction block 203 are connected with the rotating part 102.
The friction disc 201 is mounted on the mounting portion 101, and covers the pre-tightening friction block 202 and the centrifugal friction block 203, the pre-tightening friction block 202 and the inner wall of the friction disc 201 have a preset pre-tightening friction force, and the centrifugal friction block 203 can generate friction torque with the inner wall of the friction disc 201 under the action of a centrifugal force.
Specifically, the shape of the contact portion of the preloaded friction block 202 and the friction disk 201 is matched, and the shape of the contact portion of the centrifugal friction block 203 and the friction disk 201 is also matched.
According to the high-rise escape device disclosed by the invention, as the pre-tightening friction block 202 and the inner wall of the friction disc 201 have certain pre-tightening friction force, and the pre-tightening friction block 202 is connected with the rotating part 102, the pre-tightening friction block 202 can provide a torque for preventing the rotating part 102 from rotating, and the safety rope is prevented from being placed too fast in the initial state. Along with the transfer of safety rope, because centrifugal friction piece 203 can produce friction torque with the inner wall of friction disc 201 under the effect of centrifugal force, consequently, when the speed that safety rope transferred was too fast, centrifugal friction piece 203 can produce friction torque with the inner wall of friction disc 201, and centrifugal friction piece 203 is connected with rotation portion 102, consequently, can give rotation portion 102 a friction torque that hinders its pivoted, reduces the transfer speed of safety rope to improve the stability that safety rope transferred.
Example two
In the second embodiment of the present invention, the high-rise escape apparatus in this embodiment has a similar structure to the high-rise escape apparatus in the first embodiment, and the same parts are not repeated, and only differences will be described.
In the present embodiment, the present invention specifically discloses that mounting portion 101 includes a first end plate 1011 and a second end plate 1012, first end plate 1011 and second end plate 1012 are spaced apart by a predetermined distance and are bolted together, and friction disc 201 is mounted on second end plate 1012. Specifically, the friction disc 201 is fastened to the second end plate 1012, and the outer edge of the friction disc 201 is attached to the second end plate 1012 and fixed by a bolt.
In order to facilitate the first end plate 1011 and the second end plate 1012 to be parallel and spaced apart by a preset distance, the invention discloses that the mounting part 101 further comprises a housing distance sleeve 1013, the housing distance sleeve 1013 is fixed between the first end plate 1011 and the second end plate 1012 by bolts, namely, one end of the housing distance sleeve 1013 abuts against the first end plate 1011, and the other end of the housing distance sleeve 1013 abuts against the second end plate 1012.
The distance between the first end plate 1011 and the second end plate 1012 is a preset distance, which means that the distance between the first end plate 1011 and the second end plate 1012 can be any distance, and is specifically set according to needs.
Further, the present invention discloses that the rotating part 102 includes a fixed shaft 1021, a sheave disc 1022, a low-speed gear 1023, a high-speed gear 1024, and a connecting shaft 1025.
Both ends of the fixed shaft 1021 are fixed to the first end plate 1011 and the second end plate 1012, respectively, i.e., the first end plate 1011 and the second end plate 1012 provide support for the fixed shaft 1021. Specifically, one end of the fixed shaft 1021 is fixed to the first end plate 1011 by a screw.
The sheave wheel 1022 is rotatably mounted on the fixed shaft 1021, the safety rope can be wound around the sheave wheel 1022, and specifically, the sheave wheel 1022 is mounted on the fixed shaft 1021 by an angular contact ball bearing.
The low-speed gear 1023 is rotatably mounted on the fixed shaft 1021 and is fixedly connected with the rope sheave disc 1022, that is, the rope sheave disc 1022 rotates along with the lowering of the safety rope, and then the low-speed gear 1023 is driven to rotate.
High-speed gear 1024 meshes with low-speed gear 1023, so that low-speed gear 1023 rotates high-speed gear 1024. Since the radius of the high-speed gear 1024 is smaller than that of the low-speed gear 1023, the rotation speed of the high-speed gear 1024 is higher than that of the low-speed gear 1023, so that the centrifugal friction block 203 and the second spring 207 generate friction torque with the friction disc 201 under the action of centrifugal force.
The connecting shaft 1025 is rotatably mounted on the second end plate 1012 and extends into the friction disc 201, one end of the connecting shaft 1025 is fixedly connected with the high-speed gear 1024, and the connecting shaft 1025 is driven to rotate along with the rotation of the high-speed gear 1024. The other end of the connecting shaft 1025 connects the first screw 204 and the second screw 206.
The ratio of the radius of the high speed gear 1024 to the radius of the low speed gear 1023 can be set as desired. It should be noted that the low-speed gear 1023 and the high-speed gear 1024 may be replaced by other gear sets, for example, a transition gear for transmitting power may be disposed between the low-speed gear 1023 and the high-speed gear 1024 to drive the connecting shaft 1025 to rotate, so that the centrifugal friction block 203 and the friction disc 201 can generate friction torque.
In order to further improve the stability of the connecting shaft 1025, the invention discloses that the end of the friction disc 201 far away from the second end plate 1012 is also provided with a mounting position for mounting a bearing, and the bearing is used for supporting the connecting shaft 1025.
Specifically, the high-speed gear 1024 and the connecting shaft 1025 may be integrally connected or may be fixedly connected by screws.
The descending speed of the safety rope is controlled by friction torque generated between the pre-tightening friction block 202 and the centrifugal friction block 203 and the friction disc 201 respectively, and pre-tightening force is applied to the first spring 205 to enable pre-tightening friction torque to exist between the pre-tightening friction block 202 and the friction disc 201, so that the speed of a person just beginning to fall is controlled within a reasonable range; when the falling speed exceeds the limit value, the second spring 207 expands outwards due to centrifugal force, the centrifugal friction block 203 contacts the friction disc 201 to generate friction torque, the falling speed of the safety rope is reduced, and after the falling speed is reduced, the centrifugal force of the centrifugal friction block 203 and the second spring 207 is reduced, so that the falling speed of the safety rope is always kept in a safe range.
Further, the present invention discloses that the sheave disc 1022 includes a sheave disc central axis 10221 and a sheave disc baffle 10222. The rope sheave disc center shaft 10221 is rotatably mounted on the fixed shaft 1021 and used for winding of a safety rope, and the rope sheave disc baffle plates 10222 are fixed on two sides of the rope sheave disc center shaft 10221 and used for limiting of the safety rope. Specifically, the sheave disc damper 10222 includes a thick damper and a thin damper, wherein the thickness of the thin damper is smaller than that of the thick damper, and the thick damper abuts against the end face of the low-speed gear 1023.
Further, the invention discloses that the self-speed limiting mechanism 2 further comprises a first screw 204, a first spring 205, a second screw 206 and a second spring 207.
The bottom end of the pre-tightening friction block 202 is provided with a first mounting groove 2021, the first spring 205 is disposed in the first mounting groove 2021, the screw thread of the first screw 204 penetrates through the pre-tightening friction block 202, and the screw of the first screw 204 is sleeved in the first spring 205 and is rotatably connected with the rotating part 102 along the axial lead of the first screw 204, so that the first spring 205 is pressed on the rotating part 102. Specifically, a first sinking groove, a first threaded hole and a first mounting groove 2021 are sequentially formed along the direction from the top end to the bottom end of the pre-tightening friction block 202, the first sinking groove and the first mounting groove 2021 are communicated through the first threaded hole, and the nut of the first screw 204 is located in the first sinking groove, so that the nut is prevented from being exposed out of the pre-tightening friction block 202. The screw of the first screw 204 is in threaded connection with the first threaded hole, the bottom end of the screw is sleeved in the first spring 205, and the screw is rotatably mounted on the connecting shaft 1025 of the rotating part 102, where rotatable means that the screw can rotate along the axis of the screw.
The top end of the centrifugal friction block 203 is provided with a second mounting groove 2031, the second spring 207 is arranged in the second mounting groove 2031, the screw of the second screw 206 can slide to pass through the second spring 207 and the centrifugal friction block 203 in turn and is in threaded connection with the rotating part 102, and the nut of the second screw 206 presses the second spring 207 in the second mounting groove 2031. Specifically, the centrifugal friction block 203 is sequentially provided with a second mounting groove 2031 and a smooth hole along the direction from the top end to the bottom end thereof, the second screw 206 is sleeved in the second spring 207, and the screw of the second screw 206 passes through the smooth hole and is in threaded connection with the connecting shaft 1025 of the rotating portion 102.
It should be noted that the bottom end of the pre-tightening friction block 202 refers to the end of the pre-tightening friction block 202 close to the connecting shaft 1025 of the rotating part 102, and the top end of the pre-tightening friction block 202 refers to the end of the pre-tightening friction block 202 away from the connecting shaft 1025 of the rotating part 102. The bottom end of the centrifugal friction block 203 refers to the end of the centrifugal friction block 203 close to the connecting shaft 1025 of the rotating part 102, and the top end of the centrifugal friction block 203 refers to the end of the centrifugal friction block 203 far from the connecting shaft 1025 of the rotating part 102.
In order to further improve the descending stability of the safety rope, the invention discloses that the number of the pre-tightening friction blocks 202 and the centrifugal friction blocks 203 is at least 2, and the pre-tightening friction blocks and the centrifugal friction blocks are arranged around the rotating part 102 at intervals. In the present embodiment, the number of the pre-tightening friction blocks 202 and the number of the centrifugal friction blocks 203 are 2.
Specifically, the cross sections of the pre-tightening friction block 202 and the centrifugal friction block 203 are fan-shaped, and the first screw 204 and the second screw 206 are respectively arranged on the axial center lines of the pre-tightening friction block 202 and the centrifugal friction block 203 and point to the axial center line of the rotating shaft.
In order to facilitate timely heat dissipation from the pre-tightening friction block 202 and the centrifugal friction block 203, the invention discloses that a first heat dissipation stripe groove 2022 is formed in the pre-tightening friction block 202, and a second heat dissipation stripe groove 2032 is formed in the centrifugal friction block 203. In order to improve the heat dissipation efficiency of the pre-tightening friction block 202 and the centrifugal friction block 203, the number of the first heat dissipation stripe grooves 2022 and the number of the second heat dissipation stripe grooves 2032 are multiple and are uniformly distributed on the circumferential surfaces of the pre-tightening friction block 202 and the centrifugal friction block 203, so that the friction force is increased.
Furthermore, the invention discloses a high-rise escape device which further comprises an automatic recovery mechanism 4, wherein the automatic recovery mechanism 4 is arranged on the installation part 101, and the automatic recovery mechanism 4 is used for automatically recovering the safety rope and winding the safety rope on the rotating part 102, so that the safety rope is convenient to recover.
Specifically, the automatic recovery mechanism 4 comprises a scroll spring 401, wherein an inner ring of the scroll spring 401 is fixedly connected with a rope pulley disc 1022, and an outer end of the scroll spring 401 is fixedly connected with a first end plate 1011. Because the spiral spring 401 is tensioned and stored energy in the falling process of the safety rope, after a person falls safely, the spiral spring 401 rebounds and drives the safety rope to be wound on the rope wheel 1022 again for the next person to use.
Further, the invention discloses that the automatic recovery mechanism 4 further comprises a scroll spring fixing ring 402 and a scroll spring fixing block 403. The scroll spring fixing ring 402 is fixed on the first end plate 1011, the outer end of the scroll spring fixing ring 402 is connected, the scroll spring fixing block 403 is fixed with the sheave 1022, and the inner ring of the scroll spring 401 is connected with the scroll spring fixing block 403. The scroll spring fixing ring 402 and the scroll spring fixing block 403 are provided to facilitate the installation of the scroll spring 401.
Specifically, the scroll spring fixing block 403, the sheave 1022 and the low-speed gear 1023 are fixed together by bolts, the inner ring of the scroll spring 401 is fixed to the scroll spring fixing block 403 by bolts, and the outer end of the scroll spring 401 is connected to the scroll spring fixing ring 402 by screws.
The terms "first", "second", and the like in the present invention are used for descriptive distinction and have no other special meaning.
In the description of the present invention, it is to be understood that the terms "bottom end" and the like indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims (10)
1. A high-rise escape device is characterized by comprising:
the safety rope winding device comprises a transmission mechanism (1), wherein the transmission mechanism (1) comprises an installation part (101) and a rotating part (102) which is rotatably installed on the installation part (101), and a safety rope is wound on the rotating part (102) and can be wound and unwound along with the rotation of the rotating part (102);
the self-speed-limiting mechanism (2), the self-speed-limiting mechanism (2) comprises a friction disc (201), a pre-tightening friction block (202) and a centrifugal friction block (203),
the pre-tightening friction block (202) and the centrifugal friction block (203) are both connected with the rotating part (102),
the friction disc (201) is arranged on the mounting part (101) and covers the pre-tightening friction block (202) and the centrifugal friction block (203),
the pre-tightening friction block (202) and the inner wall of the friction disc (201) have a preset pre-tightening friction force, and the centrifugal friction block (203) can generate friction torque with the inner wall of the friction disc (201) under the action of centrifugal force.
2. The high-rise escape device according to claim 1, wherein the self-speed-limiting mechanism (2) further comprises a first screw (204), a first spring (205), a second screw (206) and a second spring (207);
a first mounting groove (2021) is formed in the bottom end of the pre-tightening friction block (202), the first spring (205) is arranged in the first mounting groove (2021), the screw thread of the first screw (204) penetrates through the pre-tightening friction block (202), the screw of the first screw (204) is sleeved in the first spring (205) and rotatably connected with the rotating part (102) along the axial lead of the first screw (204), and the first spring (205) is pressed on the rotating part (102);
the top end of the centrifugal friction block (203) is provided with a second mounting groove (2031), the second spring (207) is arranged in the second mounting groove (2031), a screw rod of the second screw (206) can slide to sequentially pass through the second spring (207) and the centrifugal friction block (203) and is in threaded connection with the rotating part (102), and a nut of the second screw (206) presses the second spring (207) to be arranged in the second mounting groove (2031).
3. The high-rise escape device according to claim 2, wherein the pre-tightening friction blocks (202) and the centrifugal friction blocks (203) are at least 2 in number and are arranged at intervals around the rotating part (102);
and/or
A first heat dissipation stripe groove (2022) is formed in the pre-tightening friction block (202);
and/or
And a second heat dissipation stripe groove (2032) is formed in the centrifugal friction block (203).
4. A high-rise escape apparatus according to claim 2 wherein the mounting portion (101) comprises a first end plate (1011) and a second end plate (1012);
the first end plate (1011) and the second end plate (1012) are separated by a preset distance and are connected through bolts;
the friction disc (201) is mounted on the second end plate (1012).
5. A high-rise escape device according to claim 4, wherein the mounting portion (101) further comprises a housing distance sleeve (1013);
the housing distance sleeve is fixed between the first end plate (1011) and the second end plate (1012) by bolts.
6. The high-rise escape device according to claim 4 or 5, wherein the rotating part (102) comprises:
a fixed shaft (1021), both ends of the fixed shaft (1021) being fixed to the first end plate (1011) and the second end plate (1012), respectively;
a rope wheel disc (1022), wherein the rope wheel disc (1022) is rotatably mounted on the fixed shaft (1021), and the safety rope can be wound on the rope wheel disc (1022);
the low-speed gear (1023) is rotatably arranged on the fixed shaft (1021) and is fixedly connected with the rope wheel disc (1022);
a high speed gear (1024) meshed with the low speed gear (1023), and a radius of the high speed gear (1024) is smaller than a radius of the low speed gear (1023);
the connecting shaft (1025) is rotatably mounted on the second end plate (1012) and extends into the friction disc (201), one end of the connecting shaft (1025) is fixedly connected with the high-speed gear (1024), and the other end of the connecting shaft (1025) is connected with the first screw (204) and the second screw (206).
7. The high-rise escape apparatus of claim 6 wherein the cable sheave (1022) comprises:
the rope wheel disc middle shaft (10221) is rotatably arranged on the fixed shaft (1021) and used for winding the safety rope;
the rope sheave disc baffle plate (10222), the rope sheave disc baffle plate (10222) is fixed on two sides of the rope sheave disc central shaft (10221).
8. The high-rise escape device according to claim 7, further comprising an automatic recovery mechanism (4);
the automatic recovery mechanism (4) is installed on the installation part (101), and the automatic recovery mechanism (4) is used for automatically recovering and winding the safety rope on the rotating part (102).
9. A high-rise escape apparatus according to claim 8 wherein the automatic recovery mechanism (4) comprises a volute spring (401);
the inner ring of the scroll spring (401) is fixedly connected with the rope wheel disc (1022);
the outer end of the scroll spring (401) is fixedly connected with the first end plate (1011).
10. The high-rise escape device according to claim 9, wherein the automatic recovery mechanism (4) further comprises a spiral spring fixing ring (402) and a spiral spring fixing block (403);
the scroll spring fixing ring (402) is fixed on the first end plate (1011), and the outer end of the scroll spring fixing ring (402) is connected;
the scroll spring fixing block (403) is fixed with the rope wheel disc (1022), and the inner ring of the scroll spring (401) is connected with the scroll spring fixing block (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722306.0A CN110585613B (en) | 2019-08-06 | 2019-08-06 | High-rise escape device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114306974A (en) * | 2020-09-30 | 2022-04-12 | 振锋企业股份有限公司 | Falling protector |
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