CN106474636B

CN106474636B - Belt type high-rise escape device

Info

Publication number: CN106474636B
Application number: CN201611067498.9A
Authority: CN
Inventors: 吴昭乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-28
Filing date: 2016-11-28
Publication date: 2022-03-18
Anticipated expiration: 2036-11-28
Also published as: CN106474636A

Abstract

The invention discloses a belt type high-rise escape device which comprises a constant speed device and a bearing belt, wherein the constant speed device comprises a shell, a transmission mechanism and an escapement mechanism are arranged in the shell, the transmission mechanism comprises a driving wheel and a driving wheel, the driving wheel is in linkage arrangement with the driving wheel, the driving wheel is meshed with the bearing belt, the escapement mechanism comprises a first gear set, a second gear set and an escape plate arranged between the first gear set and the second gear set, the first gear set comprises a first gear and a first escape wheel, the first gear is in linkage arrangement with the first escape wheel, the first gear is in meshed connection with the driving wheel, the second gear set comprises a second gear and a second escape wheel, the second gear is in linkage arrangement with the second escape wheel, the second gear is in meshed connection with the driving wheel, and the pitch of the first escape wheel is the same as that of the second escape wheel. By adopting the structure, the parts in the constant speed device have small abrasion and long service life.

Description

Belt type high-rise escape device

Technical Field

The invention belongs to the technical field of fire-fighting and refuge safety, and particularly relates to a belt type high-rise escape device.

Background

Nowadays, when people's life and workplaces develop to high altitude more and more, the means of fleing after meeting sudden disasters becomes more difficult along with the increase of the number of stories of buildings, and because of the restriction of the functions of some existing fire rescue equipment, a large number of trapped people are difficult to rescue by rescuers at the same time. The traditional single descent control device has great potential safety hazards, water, fire and oil are feared, if water or oil and other liquid enter the descent control device, the friction force of a friction block in a centrifugal mechanism can be instantly reduced, a descent control person can suddenly drop to cause casualties, and the product has the potential safety hazards of low reliability and safety during storage.

In order to overcome the defects in the prior art, Chinese patent CN201320114154.4 discloses a chain type high-rise fire escape device, which comprises a bearing chain and a plurality of constant speed devices for escape, and the method solves the defects of the traditional descent control device, but the bearing chain comprises a plurality of chain sheets, the connection of two adjacent chain sheets is unstable, the bearing chain is easy to break, a descent control person falls, the bearing chain is overweight, the unreasonable chain pitch size causes the easy occurrence of the clamping failure of the constant speed device in the work, and meanwhile, the speed control part in the constant speed device has the defects of short service life, large abrasion, quick heating and the like.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the belt type high-rise escape device which is used for meshing the bearing belt with the constant speed device to accurately avoid the constant speed device from being blocked, has small abrasion of parts in the constant speed device and has long service life.

In order to achieve the purpose, the invention adopts the technical scheme that: a belt-type high-rise escape device comprises a constant-speed device and a bearing belt, wherein the constant-speed device comprises a shell, a transmission mechanism and an escapement mechanism are arranged in the shell, the transmission mechanism comprises a driving wheel and a driving wheel, the driving wheel is in linkage arrangement with the driving wheel, the driving wheel is meshed with the bearing belt, the escapement mechanism comprises a first gear set, a second gear set and an escape plate arranged between the first gear set and the second gear set, the first gear set comprises a first gear and a first escape wheel, the first gear is in linkage arrangement with the first escape wheel, the first gear is in meshing connection with the driving wheel, the second gear set comprises a second gear and a second escape wheel, the second gear is in linkage arrangement with the second escape wheel, the pitch of the first escape wheel is the same as that of the second escape wheel, the escape plate is arranged between the first escape wheel and the second escape wheel and is guided to be arranged on the inner wall of the shell, the both ends symmetry of escape plate is provided with first bump and second bump, and when the tooth addendum butt of first lobe and first escape wheel, the second bump of escape plate falls into the tooth's socket of second escape wheel, when the tooth addendum butt of second lobe and second escape wheel, the first bump of escape plate falls into the tooth's socket of first escape wheel, thereby first escape wheel and second escape wheel drive the first bump and the second bump of escape plate when rotating in step switch in proper order in tooth's socket and realize the control of driving wheel rotational speed.

In the technical scheme, the driving wheel is meshed with the bearing belt to rotate under the action of gravity, the driving wheel is driven to rotate by the driving wheel, the first gear and the second gear are driven to rotate by the driving wheel, and the first gear and the second gear respectively drive the first escape wheel and the second escape wheel to rotate, so that the driving wheel, the first gear, the first escape wheel, the second gear and the second escape wheel all synchronously rotate, the falling speed of the driving wheel under the action of gravity is too high, and escapers are easy to generate danger during use, so that the constant speed escape mechanism needs to decelerate to ensure that the constant speed escape device can descend within a specified speed, the falling speed is controlled by the size ratio among the driving wheel, the first gear, the first escape wheel, the second gear and the second escape wheel, and the pitch of the first escape wheel and the second escape wheel is consistent to ensure that the escape plate smoothly reciprocates between the first escape wheel and the second escape wheel, the first salient point or the second salient point continuously falls into the next tooth groove from the previous tooth groove through the tooth crest through the rotation of the first escape wheel or the second escape wheel, when the first escape wheel or the second escape wheel rotates to push the side edge of the first salient point or the side edge of the second salient point to move, the gear teeth of the first escape wheel or the gear teeth of the second escape wheel rub against the side edge of the first salient point or the side edge of the second salient point, the falling speed of the constant speed device is effectively controlled, the danger of escapers caused by too fast speed in the falling process is avoided, the first escape wheel, the second escape wheel and the escape plate collide through rotation and sliding, the abrasion is small, and the service life is long.

As a further arrangement of the invention, a guide plate is arranged on the inner wall of the shell, the escapement plate and the guide plate are arranged in a guiding manner, the first escapement wheel and the second escapement wheel are arranged up and down relative to the transmission wheel, the center lines of the first escapement wheel, the transmission wheel and the second escapement wheel are positioned on the same straight line, and the first escapement wheel and the second escapement wheel are identical in size and shape and are symmetrically arranged.

In the above technical solution, the escapement plate reciprocates between the first escapement wheel and the second escapement wheel, the guide plate is arranged to make the escapement plate move along the axial direction between the first escapement wheel and the second escapement wheel, and the escapement plate, the first escapement wheel and the second escapement wheel can be arranged along the inner wall of the housing, so that the volume of the constant speed device can be reduced and the stability of the escapement mechanism can be enhanced, but the friction between the inner wall of the housing of the escapement plate, the first escapement wheel and the second escapement wheel is larger and easy to wear, so that a shim plate is arranged between the inner wall of the housing and the escapement mechanism, the shim plate is a steel plate through heat treatment, the hardness is large, the wear resistance is good, the service life is long, the up and down arrangement of the first escapement wheel and the second escapement wheel is that the two ends of the same diameter of the transmission wheel, and the centers of the first escapement wheel, the transmission wheel and the second escapement wheel are all on the same straight line, therefore, the force of the meshing linkage of the driving wheel and the first escape wheel and the second escape wheel is more balanced, the structure is more stable, the situation of error or clamping is not easy to occur, and the constant speed device is safer and more reliable in use.

As a further arrangement of the invention, the driving wheel and the driving wheel are coaxially linked, the middle part of the escapement plate is provided with a guide through hole, the connecting shaft between the driving wheel and the driving wheel passes through the guide through hole to extend, the first gear and the first escapement wheel are fixed or integrally arranged, and the second gear and the second escapement wheel are fixed or integrally arranged.

Among the above-mentioned technical scheme, the volume that action wheel and drive wheel coaxial arrangement can reduce the constant speed device, action wheel and drive wheel can be integrative setting, also can be the components of a whole that can function independently setting, preferred for the components of a whole that can function independently setting, thus more easy to assemble, preferred first gear sets up with first escape wheel is integrative, second gear sets up with second escape wheel is integrative, can make linkage complex transmission efficiency higher like this, avoid first escape wheel and second escape wheel asynchronous, the action wheel is located the terminal surface of drive wheel, first escape wheel, the pallet and second escape wheel are in the other terminal surface of drive wheel, first gear and second gear are in the coplanar with the drive wheel, wholly become left side center right structure, compact structure, and small in size.

As a further arrangement of the invention, a cover plate is arranged on the shell, one side of the cover plate is hinged on the shell to form a fixed side, the other side of the cover plate is a movable side, a fixed safety mechanism is arranged between the movable side and the shell, after the movable side is connected with the shell through the fixed safety mechanism, a channel for a bearing belt to pass through is formed between the cover plate and the shell, the bearing belt is of a sheet-shaped integrated structure, a tooth hole matched with the gear teeth of the driving wheel is arranged on the bearing belt, and the bearing belt passes through the channel to enable the tooth hole to be meshed with the gear teeth of the driving wheel.

Among the above-mentioned technical scheme, fixed safety mechanism means that some make the removable structure of the activity side of apron and the activity of being connected of casing, the apron makes things convenient for the carrier tape installation through articulated upset, during the use, remove fixed safety mechanism, make the activity side of apron rotate along fixed side and open the apron, lay the carrier tape, make the tooth hole on the carrier tape align with the teeth of a cogwheel meshing with the action wheel, cover the activity side with the apron and be connected with the casing through fixed safety mechanism, the carrier tape grows up the bar, it forms to directly punch by alloy steel band or stainless steel band, the tooth hole evenly distributed is on the carrier tape, the processing is convenient, therefore, the cost is low, the shape size of passageway all with the carrier tape adaptation, make constant speed device at the decline in-process, the carrier tape can not rock at will, reinforcing stability and security.

As a further arrangement of the invention, the shell is provided with a brake piece, the brake piece comprises an operation end positioned outside the shell and a clamping end positioned in the shell, the operation end and the clamping end are fixedly or integrally arranged, the brake piece is hinged on the shell, the end part of the clamping end is provided with a clamping joint, and the clamping joint can be matched with the tooth socket of the driving wheel to limit the rotation of the driving wheel when the brake piece swings.

Among the above-mentioned technical scheme, the constant speed device is when using, need to take cooperation rear with the carrier and can descend, when the constant speed device with the carrier is taking when the combination, need earlier the perforation of bearing the weight of area and the teeth of a cogwheel meshing of action wheel, then with apron and casing connection locking, the time that this process needs to remove, and when the aggregate erection, the action wheel rotates easily, not only bring the degree of difficulty for the installation, and waste time, and the constant speed device will slide down under the action of gravity, cause easily that the apron does not have the locking good or the condition that the flee person is not prepared the constant speed device and just descends, danger easily takes place like this, after setting up the brake piece, when the constant speed device does not use or when aggregate erection with the carrier, it forms the joint cooperation with the teeth of a cogwheel to rotate the brake piece messenger joint head, reach the mesh of restriction action wheel pivoted, the security improves.

As a further arrangement of the invention, the housing is further provided with a hook mechanism, the hook mechanism comprises a hanging plate fixed with or integrally arranged with the housing, and a limiting part arranged on the housing, hanging grooves are arranged on two sides of the end part of the hanging plate far away from the housing, the limiting part comprises a limiting sheet and a limiting hole arranged on the hanging plate, the limiting hole is positioned above the hanging grooves, one end of the limiting sheet is hinged on the housing, the other end of the limiting sheet is bent towards the hanging plate to form a limiting end, and the limiting end can pass through the limiting hole and be arranged above the hanging grooves through rotation.

Among the above-mentioned technical scheme, in the use, the person of fleing need tie up a safety belt on one's body, is provided with the safety button that is used for connecting the constant speed device chain on the safety belt, then descends through the constant speed device, and the setting of locating part is in order to prevent that the safety button from with hang the groove cooperation back in the use roll-off, causes the condition that the person of fleing falls midway, improves the safety in utilization of constant speed device.

Adopt above-mentioned scheme, the falling speed of constant speed device is controlled through the cooperation of first escape wheel, escape plate and second escape wheel, makes the falling speed of constant speed device accord with national standard, and compares with prior art, and the wearing and tearing are little between each part of escapement, long service life, and is small, and is with low costs, conveniently places and uses.

The invention is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a brake member, a limiting member and a cover plate all in an open state according to an embodiment of the present invention;

FIG. 3 is an elevation view of a transmission and escapement mechanism in accordance with an embodiment of the present invention;

FIG. 4 is a rear view of the transmission and escapement of an embodiment of the present invention;

FIG. 5 is a schematic diagram of the construction of an escapement plate and a guide plate according to an embodiment of the present invention;

FIG. 6 is an exploded view of an embodiment of the present invention;

FIG. 7 is an exploded view of the drive mechanism according to the preferred embodiment of the present invention;

FIG. 8 is a top view of the overall structure of an embodiment of the present invention;

FIG. 9 is an enlarged partial view of a latch member according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of a structure of an embodiment A-A of the present invention;

FIG. 11 is a schematic view of a constant velocity device in cooperation with a carrier tape according to an embodiment of the present invention.

Detailed Description

The invention is described in detail below with reference to examples, which are intended to be illustrative only and not to be construed as limiting the scope of the invention, and many insubstantial modifications and variations of the invention can be made by an engineer skilled in the art based on the teachings of the invention.

Detailed description of the inventionas shown in fig. 1 to 11, a belt type high-rise escape apparatus includes a constant speed device 1 and a carrier belt 2, the constant speed device 1 includes a housing 11, a transmission mechanism 12 and an escapement mechanism 13 are disposed in the housing 11, the transmission mechanism 12 includes a driving wheel 121 and a transmission wheel 122, the driving wheel 121 is disposed in linkage with the transmission wheel 122, the driving wheel 121 is engaged with the carrier belt 2, the escapement mechanism 13 includes a first gear set 131, a second gear set 132, and an escape plate 133 disposed between the first gear set 131 and the second gear set 132, the first gear set 131 includes a first gear 1311 and a first escape wheel 1312, the first gear 1311 is disposed in linkage with the first escape wheel 1312, and the first gear 1311 is engaged with the transmission wheel 122, the second gear set 132 includes a second gear 1321 and a second escape wheel 1322, the second gear 1321 is disposed in linkage with the second escape wheel 1322, and the second gear 1321 is engaged with the driving wheel 122, the first escape wheel 1312 and the second escape wheel 1322 are identical in size and shape and are symmetrically arranged, the escapement plate 133 is arranged between the first escape wheel 1312 and the second escape wheel 1322 and is guided and arranged on the inner wall of the shell 1, a first salient point 1331 and a second salient point 1332 are symmetrically arranged at two ends of the escape lever 133, when the first protruding point 1331 abuts the tooth crest of the tooth of the first escape wheel 1312, the second protruding point 1332 of the escape plate 133 falls into the tooth slot of the second escape wheel 1322, when the second protruding point 1332 abuts against the tooth crest of the second escape wheel 1322, the first protruding point 1331 of the escape wheel 133 falls into the tooth trough of the first escape wheel 1312, and the first protruding point 1331 and the second protruding point 1332 that drive the escape wheel 133 when the first escape wheel 1312 and the second escape wheel 1322 rotate synchronously are sequentially switched between the tooth crest and the tooth trough, thereby controlling the rotation speed of the capstan 121. The driving wheel 121 is meshed with the carrier belt 2 to rotate under the action of gravity, the driving wheel 121 drives the driving wheel 122 to rotate, the driving wheel 122 drives the first gear 1311 and the second gear 1321 to rotate, the first gear 1311 and the second gear 1321 drive the first escape wheel 1312 and the second escape wheel 1322 to rotate respectively, so that the driving wheel 121, the driving wheel 122, the first gear 1311, the first escape wheel 1312, the second gear 1321 and the second escape wheel 1322 rotate synchronously, and the escape person is easy to have danger when using the escape person because the falling speed of the driving wheel 121 under the action of gravity is too fast, so that the escape mechanism 13 is required to decelerate, the constant speed device 1 can descend within a specified speed, the descending speed is controlled by the proportion among the driving wheel 121, the driving wheel 122, the first gear 1311, the first escape wheel 1312, the second escape wheel 1321 and the second escape wheel 1322, and the tooth pitches of the first escape wheel 1312 and the second escape wheel are consistent to ensure that the escape wheel 1322 is positioned between the first escape wheel 1311 and the second escape wheel 1322 The first and

second protrusions

1331 and 1332 are continuously dropped into the next tooth space from the previous tooth space through the tooth top by the rotation of the first escape wheel 1312 or the second escape wheel 1322, when the first escape wheel 1312 or the second escape wheel 1322 rotates and pushes the side edge of the first protrusion 1331 or the side edge of the second protrusion 1332 to move, the gear teeth of the first escape wheel 1312 or the gear teeth of the second escape wheel 1322 rub against the side edge of the first protrusion 1331 or the side edge of the second protrusion 1332, the falling speed of the constant speed device 1 is effectively controlled, the danger of an escaper caused by over-high speed in the falling process is avoided, and the first escape wheel 1312, the second escape wheel 1322 and the escape plate 133 collide through rotation and slippage, so that the abrasion is small, and the service life is long.

The inner wall of the housing 11 is provided with guide plates 111 disposed opposite to each other at positions corresponding to the escapement plate 133, the escapement plate 133 is disposed between the two guide plates 111, the inner side surfaces of the two guide plates 111 opposite to each other are provided with guide grooves 1111, two sides of the escapement plate 133 are provided with guide ribs 1333 guiding and cooperating with the guide grooves 1111, the first protruding points 1331 and the second protruding points 1332 may be triangular or semicircular, the teeth of the first escapement wheel 1312 and the second escapement wheel 1322 may be triangular or semicircular, of course, the first protruding points 1331, the second protruding points 1332, the teeth of the first escapement wheel 1312 and the teeth of the second escapement wheel may be of other shapes as long as the side edges of the first protruding points 1322 1331 and the side edges of the teeth of the first escapement wheel 1312 are in contact friction, the side edges of the second protruding points 1332 and the side edges of the teeth of the second escapement wheel 1322 are in contact friction, and the first escapement wheel 1312 and the second escapement wheel 1322 are disposed up and down with respect to the driving wheel 122, the center lines of the first escape wheel 1312, the transmission wheel 122 and the second escape wheel 1322 are aligned. The escapement plate 133 is reciprocally moved between the first escapement wheel 1312 and the second escapement wheel 1322, the guide plate 111 is disposed so as to move the escapement plate 133 in the axial direction between the first escapement wheel 1312 and the second escapement wheel 1322, and the escapement plate 133, the first escapement wheel 1312 and the second escapement wheel 1322 are disposed to abut against the inner wall of the housing 11, so that the volume of the constant velocity device 1 can be reduced and the stability of the escapement mechanism 13 can be enhanced, but so that the escapement plate 133, the first escapement wheel 1312 and the second escapement wheel 1322 have a large friction against the inner wall of the housing 11 and are easily worn, and therefore, a pallet 112 is disposed between the inner wall of the housing 11 and the escapement mechanism 13, the pallet 112 is a steel plate through heat treatment, has high hardness and wear resistance, and a long service life, the first escapement wheel 1312 and the second escapement wheel 1322 are disposed up and down, i.e. at both ends of the same diameter of the driving wheel 122, and the centers of the first escapement wheel 1312, the driving wheel 122 and the second escapement wheel 1322 are all located on the same straight line, thus, the force of the meshing linkage of the transmission wheel 122 and the first escape wheel 1312 and the second escape wheel 1322 is more balanced, the structure is more stable, errors or jamming are not easy to occur, and the constant velocity device 1 is safer and more reliable in use.

The driving wheel 121 and the driving wheel 122 are coaxially arranged in a linkage manner, a linkage structure 123 is arranged between the driving wheel 121 and the driving wheel 122, the linkage structure 123 includes a clamping block 1231 arranged on the driving wheel 121, a clamping groove 1232 which is in clamping fit with the clamping block 1231 is arranged on the driving wheel 122, a guide through hole 1334 is arranged in the middle of the escape board 133, a connecting shaft 124 between the driving wheel 121 and the driving wheel 122 passes through the guide through hole 1334 to extend, two ends of the connecting shaft 124 respectively extend outwards to penetrate out of the housing 11, a handle portion 1241 which is gripped by an escaper is formed at a portion exposed out of the housing 11, the connecting shaft 124 is fixed on the housing 11, the first gear 1311 and the first escape wheel 1312 are fixed or integrally arranged, and the second gear 1321 and the second escape wheel 1322 are fixed or integrally arranged. The coaxial arrangement of the driving wheel 121 and the driving wheel 122 can reduce the volume of the constant velocity device 1, the driving wheel 121 and the driving wheel 122 can be integrally arranged or can be separately arranged, preferably, the separate arrangement is adopted, so that the installation is more convenient, preferably, the first gear 1311 and the first escape wheel 1312 are integrally arranged, the second gear 1321 and the second escape wheel 1322 are integrally arranged, so that the transmission efficiency of linkage matching is higher, the first escape wheel 1312 and the second escape wheel 1322 are prevented from being out of synchronization, the driving wheel 121 is positioned on one end face of the driving wheel 122, the first escape wheel 1312, the escape plate 133 and the second escape wheel 1322 are positioned on the other end face of the driving wheel 122, the first gear 1311 and the second gear 1321 are positioned on the same plane with the driving wheel 122, and the whole structure is a left-middle-right structure, the structure is compact, and the volume is small.

Be provided with apron 113 on above-mentioned casing 11, one side of apron 113 articulates and forms fixed side 1131 on casing 11, and the opposite side is activity side 1132, is provided with fixed arrears between activity side 1132 and the casing 11, and fixed arrears include bolt 114 and locking part 116, and bolt 114 is used for connecting activity side 1132 and the casing 11 of apron 113, the junction of activity side 1132 and the casing 11 of apron 113 is provided with the bolt passageway 115 that supplies bolt 114 to pass, is equipped with through-hole 1151 on the inner wall of bolt passageway 115, and activity side 1132 is connected the back with casing 11, forms the passageway 117 that supplies carrier band 2 to pass between apron 113 and the casing 11, is provided with the perforation 21 with the adaptation teeth of action wheel 121 on the carrier band 2, and carrier band 2 passes the tooth meshing that passageway 117 made perforation 21 and action wheel 121. The apron 113 makes things convenient for the installation of carrier band 2 through articulated upset, in the use, remove locking part 116, make the activity side 1132 of apron 113 rotate along fixed side 1131 and open apron 113, lay carrier band 2, make the tooth hole 21 on the carrier band 2 and the teeth of a cogwheel of action wheel 121 align and mesh, cover activity side 1132 and be connected with casing 11 through bolt 115 with apron 113, rethread locking part 116 fixed bolt 115, avoid bolt 115 roll-off to lead to the apron 113 to open, cause carrier band 2 and action wheel 121 to break away from, cause the person of fleing to fall, carrier band formula structure as an organic whole, adopt alloy steel band or stainless steel band preparation, the shape size of passageway 117 all with carrier band 2 adaptation, make constant velocity unit 1 in the in-process that descends, carrier band 2 can not rock at will, reinforcing stability and security.

The locking member 116 includes an insertion groove 1161 formed on an outer peripheral surface of the plug 115, an elastic insertion element disposed on the housing 11, and a reset element of the elastic insertion element, the elastic insertion element is aligned with the through hole 1151, the insertion groove 1161 is also aligned with the through hole 1151 after the plug 114 is inserted into the plug channel 115, and the elastic insertion element passes through the through hole 1151 and is inserted into the insertion groove 1161. The insertion groove 1161 is preferably annular, so that the insertion pin 114 is inserted into the insertion pin channel 115 to move the insertion groove 1161 to the position of the through hole 1151, the insertion groove 1161 is aligned with the through hole 1151 without rotating the insertion pin 114, locking time is saved, the insertion pin 114 can be prevented from being separated upwards or downwards after the elastic insertion pin is locked with the insertion pin 114, connection stability of the cover plate 113 and the housing 11 is guaranteed, and safety is improved.

The elastic plug connector comprises a plug post 1162 and a plug post channel 1163 which is arranged on the shell 11 and matched with the plug post 1162, the plug post channel 1163 is arranged in the direction perpendicular to the plug pin channel 115, the plug post 1162 axially reciprocates in the plug post channel 1163, a spring 1164 is arranged on the bottom surface of the plug post channel 1163, the spring 1164 is connected with the plug post 1162 and drives the plug post 1162 to penetrate through a through hole 1151 and be connected with the plug groove 1161 through the elastic force of the spring 1164, the reset piece comprises a strip-shaped through hole 1165 arranged on the inner wall of the plug post channel 1163, a shifting block 1166 which penetrates through the strip-shaped through hole 1165 and extends out of the shell 11 is arranged on the side surface, facing the strip-shaped through hole 1165, of the strip-shaped through hole 1165 is longer than the width of the shifting block 1166, and the shifting block 1166 reciprocates in the length direction of the strip-shaped through hole 1165. Because the spring 1164 acts to push the pin 1162 along the direction of the through hole 1151, when the pin 114 is inserted into the pin channel 115, the pin 1162 is urged in a direction away from the through hole 1151, and at this time, the end surface of the pin 1162 facing the through hole 1151 is preferably an inclined surface 1162a, which facilitates the pin 114 to urge the pin 1162, when the slot 1161 on the pin 114 is coaxial with the pin 1162, the pin 1162 is inserted into the slot 1161 under the action of the spring 1164, i.e. the pin 1162 and the pin 114 form a spacing fit relationship, when the pin 1162 and the slot 1161 are in different axes, the pin 1162 abuts against the outer circumferential surface of the pin 114 under the action of the spring 1164, so that the pin 1162 is coaxial with the slot 1161, the pin 1162 is automatically inserted into the slot 1161, without manual reset assistance, the structure is simple, stable and convenient to operate, when the pin 114 needs to be pulled out, the escaper pushes the shifting block 1166 with a hand to move the inserting column 1162 in a direction away from the through hole 1151, namely the inserting column 1162 is pushed back into the inserting column channel 1163, the bolt 114 can be smoothly pulled out, the moving distance of the shifting block 1166 on the bar-shaped through hole 1165 is required to be met, the inserting column 1162 is pushed out from the inserting groove 1161, the inserting column 1162 can only play a role in locking and unlocking, the shape and the size of the shifting block 1166 are matched with the bar-shaped through hole 1165, the outer peripheral surface of the shifting block 1166 is in clearance fit with the inner wall of the bar-shaped through hole 1165, friction can be reduced, and resetting is convenient.

The brake piece 118 is arranged on the housing 11, the brake piece 118 includes an operation end 1181 located outside the housing 11 and a clamping end 1182 located inside the housing 11, the operation end 1181 and the clamping end 1182 are fixed or integrally arranged, the brake piece 118 is hinged to the housing 11, a clamping head 1182a is arranged at an end of the clamping end 1182, and the clamping head 1182a can be matched with a tooth socket of the driving wheel 121 to limit the rotation of the driving wheel 121 when the brake piece 118 swings. When the constant speed device 1 is used, the constant speed device 1 needs to be matched with the carrier belt 2 and then can descend, when the constant speed device 1 and the carrier belt 2 are combined, the tooth holes 21 of the carrier belt 2 need to be meshed with the gear teeth of the driving wheel 121, then the cover plate 113 is connected and locked with the shell 11, the moving time is needed in the process, in addition, when the constant speed device 1 and the carrier belt 2 are combined and installed, the driving wheel 121 is easy to rotate, not only is the installation difficulty brought to the installation, but also the time is wasted, in addition, the constant speed device 1 can slide downwards under the action of gravity, the situation that the cover plate 113 is not locked or an escaper is not ready for the constant speed device 1 to descend is easily caused, so that danger is easy to happen, after the brake piece 118 is arranged, when the constant speed device 1 is not used or is combined and installed with the carrier belt 2, the brake piece 118 is rotated to enable the clamping joint 1182a to fall into the tooth grooves of the driving wheel 121 to form clamping and matching with the gear teeth, and the purpose of limiting the rotation of the driving wheel 121 is achieved, the safety is improved, the brake 118 is of a structure similar to an L shape, when the brake 118 is not braked, the inner wall of the operation end 1181 abuts against the outer wall of the shell 11, and the magnet 1183 is arranged at a position, corresponding to the operation end 1181, of the outer wall of the shell 11, so that the brake 118 cannot rotate randomly, and the constant speed device 1 cannot brake suddenly in the descending process.

Still be provided with couple mechanism 119 on above-mentioned casing 11, couple mechanism 119 includes link plate 1191 fixed or integrative setting with casing 11, set up locating part 1192 on casing 11, link plate 1191 is kept away from casing 11's tip both sides and is equipped with hanging groove 1193, link plate 1191's the other end extends the cover to casing 11 and establishes on the back shaft 1323 of second gear train 132, locating part 1192 includes spacing piece 1192a and sets up spacing hole 1192b on link plate 1191, spacing hole 1192b is located the top of hanging groove 1193, the one end of spacing piece 1192a articulates on casing 11, the other end is bent towards link plate 1191 and is set up and constitute spacing end 1191a, spacing end 1191a can pass spacing hole 1192b through rotating and arrange the top of hanging groove 1193 in. In the use, the person of fleing need tie up a safety belt on one's body, be provided with the safety buckle that is used for connecting constant speed device 1 on the safety belt, then descend through constant speed device 1, the safety buckle becomes the slice of T type, hang groove 1193 and safety buckle adaptation joint, the inner wall of hanging groove 1193 is equipped with the draw-in groove 1193a that supplies the safety buckle card to go into, the setting of locating part 1192 is in order to prevent safety buckle and hang groove 1193 cooperation back roll-off in the use, cause the condition that the person of fleing falls midway, improve the safety in utilization of constant speed device 1.

Claims

1. A belt type high-rise escape device comprises a constant speed device and a bearing belt, and is characterized in that: the constant speed device comprises a shell, a transmission mechanism and an escapement mechanism are arranged in the shell, the transmission mechanism comprises a driving wheel and a transmission wheel, the driving wheel is in linkage with the transmission wheel, the driving wheel is meshed with a bearing belt, the escapement mechanism comprises a first gear set, a second gear set and an escape plate arranged between the first gear set and the second gear set, the first gear set comprises a first gear and a first escape wheel, the first gear is in linkage with the first escape wheel, the first gear is in meshed connection with the transmission wheel, the second gear set comprises a second gear and a second escape wheel, the second gear is in linkage with the second escape wheel, the second gear is in meshed connection with the transmission wheel, the pitch of the first escape wheel is the same as that of the second escape wheel, the escape plate is arranged between the first escape wheel and the second escape wheel and is guided and arranged on the inner wall of the shell, and first salient points and second salient points are symmetrically arranged at two ends of the escape plate, when the first salient point is abutted with the tooth top of the first escape wheel, the second salient point of the escape plate falls into the tooth slot of the second escape wheel, when the second salient point is abutted with the tooth top of the second escape wheel, the first salient point of the escape plate falls into the tooth slot of the first escape wheel, and the first salient point and the second salient point which drive the escape plate when the first escape wheel and the second escape wheel rotate synchronously are sequentially switched in the tooth top and the tooth slot to realize the control of the rotating speed of the driving wheel.

2. The belt-type high-rise escape device according to claim 1, wherein: the inner wall of the shell is provided with a guide plate, the escapement plate and the guide plate are arranged in a guiding mode, the first escapement wheel and the second escapement wheel are arranged up and down relative to the driving wheel, the center lines of the first escapement wheel, the driving wheel and the second escapement wheel are located on the same straight line, and the first escapement wheel and the second escapement wheel are identical in size and shape and are arranged symmetrically.

3. The belt type high-rise escape device according to claim 1 or 2, wherein: the driving wheel and the driving wheel are coaxially linked, a guide through hole is formed in the middle of the escape board, a connecting shaft between the driving wheel and the driving wheel penetrates through the guide through hole to extend, the first gear and the first escape wheel are fixed or integrally arranged, and the second gear and the second escape wheel are fixed or integrally arranged.

4. The belt type high-rise escape device according to claim 1 or 2, wherein: the bearing belt is of a sheet integrated structure, a tooth hole matched with the gear of the driving wheel is formed in the bearing belt, and the bearing belt penetrates through the channel to enable the tooth hole to be meshed with the gear of the driving wheel.

5. The belt type high-rise escape device according to claim 1 or 2, wherein: the brake piece is arranged on the shell and comprises an operating end and a clamping end, the operating end and the clamping end are located outside the shell, the clamping end and the clamping end are fixed or integrally arranged, the brake piece is hinged to the shell, a clamping connector is arranged at the end of the clamping end, and the clamping connector can be matched with a tooth groove of the driving wheel to limit rotation of the driving wheel when the brake piece swings.

6. The belt-type high-rise escape device according to claim 3, wherein: the brake piece is arranged on the shell and comprises an operating end and a clamping end, the operating end and the clamping end are located outside the shell, the clamping end and the clamping end are fixed or integrally arranged, the brake piece is hinged to the shell, a clamping connector is arranged at the end of the clamping end, and the clamping connector can be matched with a tooth groove of the driving wheel to limit rotation of the driving wheel when the brake piece swings.

7. The belt-type high-rise escape device according to claim 4, wherein: the brake piece is arranged on the shell and comprises an operating end and a clamping end, the operating end and the clamping end are located outside the shell, the clamping end and the clamping end are fixed or integrally arranged, the brake piece is hinged to the shell, a clamping connector is arranged at the end of the clamping end, and the clamping connector can be matched with a tooth groove of the driving wheel to limit rotation of the driving wheel when the brake piece swings.

8. The belt type high-rise escape device according to claim 1 or 2, wherein: still be provided with couple mechanism on the casing, couple mechanism includes the link plate of fixed or integrative setting with the casing, sets up the locating part on the casing, and the tip both sides that the casing was kept away from to the link plate are equipped with the hanging groove, and the locating part includes spacing piece and the spacing hole of setting on the link plate, and spacing hole site is in the top of hanging groove, and the one end of spacing piece articulates on the casing, and the other end is bent towards the link plate and is set up and constitute spacing end, and spacing end can pass spacing hole through rotating and arrange the top in hanging groove in.