CN117208699A - Fire escape system of vertical lift - Google Patents

Abstract

The application discloses a fire escape system of a vertical lift elevator, which belongs to the technical field of elevator escape, wherein an elevator body is arranged in an elevator shaft, a climbing ladder is arranged in an escape space in the elevator shaft, and a suspension bracket can communicate a wellhead with the climbing ladder so as to increase an escape route. The first emergency button is used for forcedly opening a first switch door at the elevator shaft, and the second emergency button is used for forcedly opening an emergency escape door at one side of the elevator body towards the escape space. When the fire escape system of the vertical lift disclosed by the application encounters a fire, the emergency escape door of the lift body towards one side of the escape space can be forcedly opened by the second emergency button, and at the moment, a person trapped in the lift can leave the lift and leave the building along the escape space, so that the lift goes to a safe position. In addition, the first switch door at the wellhead can be forcedly opened through the first emergency button, and then the danger-avoiding personnel can climb to the escape space to escape through the suspension frame.

Description

Fire escape system of vertical lift

Technical Field

The application relates to the technical field of elevator escape, in particular to a fire escape system of a vertical lift.

Background

The existing elevator has no escape equipment, so that the accident that personnel are closed in the elevator can occur whenever the elevator fails, particularly when a fire disaster or a power failure accident occurs, the situation that the personnel are closed in the elevator is critical and life is dangerous; and when a fire disaster happens, the elevator can not be used, so that escape means are fewer.

Disclosure of Invention

The application discloses a fire escape system of a vertical lift elevator, which aims to solve the problems.

The technical scheme adopted by the application for solving the technical problems is as follows:

based on the above object, the present application discloses a fire escape system for a lift elevator, which is installed at an elevator shaft of a building, wherein one side of the elevator shaft is provided with a plurality of shaft heads, the shaft heads are arranged at intervals along the height direction of the elevator shaft, each shaft head is provided with a first switch door, the bottom of the other side of the elevator shaft is provided with an escape opening, one side of the elevator shaft corresponding to the escape opening is provided with an escape space, and the escape space extends to the escape opening, and the fire escape system comprises

The elevator body is positioned in the elevator shaft, the elevator body can slide up and down along the elevator shaft, a second switch door is arranged on one side of the elevator body, which faces the wellhead, and an emergency escape door is arranged on one side of the elevator body, which faces the escape space;

a cat ladder, which is arranged in the escape space;

the suspension is installed at the wellhead and is rotationally connected with the building, when the suspension rotates downwards, the suspension can rotate to connect the wellhead with the ladder stand, and when the suspension rotates upwards, the suspension can rotate to a position which does not affect the normal lifting of the elevator;

the first emergency button is arranged at the wellhead and used for opening the first switch door; and

the second emergency button is arranged in the elevator body and is used for opening the emergency escape door.

Optionally: a rest platform is arranged at the position corresponding to each suspension in the escape space, the rest platform is arranged adjacent to the cat ladder, the bottom of rest platform is provided with the locking groove, the free end of suspension can with the locking groove forms joint cooperation.

Optionally: the utility model discloses a mechanical structure, including the rest platform, be provided with locking structure on the rest platform, locking structure includes first slider, second slider and first elastic component, first slider with the second slider all with rest platform sliding connection, first slider can be followed the direction of height of rest platform slides, just the first end of first slider extends to in the locking groove, so that the suspension gets into can promote when the locking groove first slider moves down, the second slider can be followed rest platform orientation the direction of well head moves, just the second slider is located the locking groove deviates from one side of well head, first elastic component is located the second slider deviates from one side of locking groove, the first end of first slider extends to the second slider is towards the one end of locking groove, works as first slider moves down and leaves when the second slider, first elastic component can promote the second slider is towards the locking groove moves.

Optionally: the lower surface of the second slider is provided with a slope so that the height of the second slider is gradually reduced toward the locking groove.

Optionally: the resting platform is provided with a first chute, a second chute and a third chute, the first chute and the second chute are respectively arranged on two side walls of the locking groove, the first chute and the second chute are oppositely arranged, the first chute is positioned on one side of the locking groove, which is away from the wellhead, the second chute is positioned on one side of the locking groove, which is towards the wellhead, and one end of the second chute, which is away from the locking groove, extends to the end face of the resting platform in the length direction, the third chute is positioned at the bottom of the locking groove, and the third chute extends downwards along the height of the resting platform;

the first sliding block and the first elastic piece are both located in the first sliding groove, the first elastic piece enables the first sliding block to have a trend of moving towards the second sliding groove, the second sliding block is located in the third sliding groove, and the second sliding block can enter or leave the first sliding groove and the locking groove.

Optionally: the suspension comprises a first support, a second support and a connecting shaft, wherein the first support and the second support are both installed on the connecting shaft, the first support and the second support are arranged at intervals along the connecting shaft, the connecting shaft is connected with the building in a rotating mode, the connecting shaft is arranged in the moving direction of the first switch door, and the first support and the second support are matched with one locking structure respectively.

Optionally: a clamping groove is formed in the first bracket, and the first bracket faces one side of the second bracket;

be provided with backup pad and second elastic component on the second support, the backup pad with the second support rotates to be connected, the axis of rotation of backup pad with the length direction of second support is parallel, and works as the backup pad orientation when the first support rotates the backup pad can block into in the draw-in groove, the both ends of second elastic component respectively with the second support with the backup pad is connected, the second elastic component makes the backup pad has orientation first support pivoted trend.

Optionally: the locking structure further comprises a first control block, and the first control block is connected with the rest platform;

the second support is provided with a second control block at a position corresponding to the first control block, the second control block is in sliding connection with the second support, the second control block is located on a rotation path of the support plate, and when the second slider moves towards the locking groove, the first control block can push the second control block to release the restriction on the support plate.

Optionally: and a notch is arranged at the position of the supporting plate corresponding to the steel rope of the elevator body.

Optionally: the device also comprises a transmission structure, wherein the transmission structure comprises a rack, a first gear, a sliding rod, a second gear, a third elastic piece, a worm wheel and a worm;

the rack is arranged at the bottom of the first switch door, the first gear is rotationally connected with the building, and the first gear is meshed with the rack;

the worm is connected with the connecting shaft, the worm wheel is rotationally connected with the building, the worm wheel is meshed with the worm, and the worm wheel and the first gear are coaxially arranged;

the sliding rod is in sliding connection with the worm wheel, the second gear is installed in the first end of sliding rod, the second end of sliding rod can get into or leave the elevator shaft, the both ends of third elastic component respectively with the building with the sliding rod is connected, the third elastic component makes the sliding rod has the trend of getting into the elevator shaft, when the connecting rod gets into the elevator shaft, the second gear with first gear engagement, when the elevator body removes to corresponding well head, the elevator body promotes the sliding rod is left the elevator shaft, and at this moment the second gear with first gear separation.

Compared with the prior art, the application has the beneficial effects that:

the application discloses a fire escape system of a vertical lift elevator, which is used for being installed at an elevator shaft of a building. It includes elevator body, cat ladder, suspension, first emergency button and second emergency button. The elevator body is installed in the elevator shaft, the cat ladder is installed at the escape space in the elevator shaft, and the suspension frame can be used for communicating the wellhead with the cat ladder, so that an escape route is increased. The first emergency button is used for forcedly opening a first switch door at the elevator shaft, and the second emergency button is used for forcedly opening an emergency escape door at one side of the elevator body towards the escape space.

When the fire escape system of the vertical lift disclosed by the application encounters a fire, the emergency escape door of the lift body towards one side of the escape space can be forcedly opened by the second emergency button, and at the moment, a person trapped in the lift can leave the lift and leave the building along the escape space, so that the lift goes to a safe position. In addition, the first switch door at the wellhead can be forcedly opened through the first emergency button, and then the danger-avoiding personnel can climb to the escape space to escape through the suspension frame. The fire escape system of the vertical lift elevator can effectively avoid the situation that dangerous persons are trapped in the elevator when encountering dangerous situations, and the escape path is increased, so that the dangerous persons at other positions in the building are easier to leave the building.

Drawings

Fig. 1 illustrates a front cross-sectional view of a fire escape system of a vertical lift disclosed in an embodiment of the present application;

fig. 2 illustrates a right side view of the fire escape system of the elevator disclosed in the embodiment of the present application;

fig. 3 illustrates a left side view of a fire escape system of a lift up elevator disclosed in an embodiment of the present application;

FIG. 4 illustrates a close-up view of FIG. 3 in accordance with an embodiment of the present application;

fig. 5 is a schematic view of a transmission structure according to an embodiment of the present application, in which a seafloor pole extends into an elevator shaft;

fig. 6 is a schematic view of a sea floor lever in a transmission structure according to an embodiment of the present application when the sea floor lever is moved away from an elevator shaft;

FIG. 7 shows a schematic diagram of a resting platform disclosed in an embodiment of the present application;

FIG. 8 illustrates a schematic view of a suspension disclosed in an embodiment of the present application rotated onto a resting platform;

fig. 9 shows a left side view of fig. 8 as disclosed in an embodiment of the present application.

In the figure:

100-building, 110-elevator shaft, 120-wellhead, 130-escape space, 140-escape opening, 150-first switch door, 200-elevator body, 210-second switch door, 220-emergency escape door, 300-cat ladder, 400-suspension, 410-first bracket, 420-connecting shaft, 430-second bracket, 440-supporting plate, 441-gap, 442-stopper, 450-second control block, 500-rest platform, 510-locking slot, 520-first chute, 530-second chute, 540-third chute, 600-transmission structure, 610-rack, 620-second gear, 630-slide bar, 640-first gear, 650-turbine, 660-worm, 700-locking structure, 710-first slider, 720-second slider, 730-first elastic piece, 740-first control block.

Detailed Description

The application will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.

Examples:

referring to fig. 1 to 3, an embodiment of the present application discloses a fire escape system of a vertical lift for installation at an elevator shaft 110 of a building 100. Which includes an elevator body 200, a ladder 300, a hanger 400, a first panic button, and a second panic button. The elevator body 200 is installed in the elevator shaft 110, the cat ladder 300 is installed at the escape space 130 in the elevator shaft 110, and the hanger 400 can communicate the wellhead 120 with the cat ladder 300, thereby increasing an escape route. The first emergency button is used to forcibly open the first opening and closing door 150 at the elevator shaft 110, and the second emergency button is used to forcibly open the emergency escape door 220 of the elevator body 200 toward the side of the escape space 130.

When the fire disaster escape system of the vertical lift disclosed in this embodiment encounters a fire disaster, the emergency escape door 220 on the side of the escape space 130 facing the elevator body 200 can be forcibly opened by the second emergency button, and at this time, a person trapped in the elevator can leave the elevator along the escape space 130 and leave the building 100, thereby going to a safe position. In addition, the first switch door 150 at the wellhead 120 can be forcibly opened by the first emergency button, and then the danger-avoidance personnel can climb into the escape space 130 to escape by the suspension 400. The fire escape system of the vertical lift elevator can effectively prevent the danger avoidance personnel from being trapped in the elevator when encountering dangerous situations, and the escape path is increased, so that the danger avoidance personnel at other positions in the building 100 can leave the building 100 more easily.

Referring to fig. 1 to 3, the fire escape system of the elevator in the vertical direction disclosed in the present embodiment requires a certain modification of the elevator shaft 110 of the general building 100. A plurality of wellheads 120 are disposed on one side of a typical elevator shaft 110, and the wellheads 120 are disposed at intervals along the height direction of the elevator shaft 110, each of the wellheads 120 corresponds to a floor, and a first switch door 150 for protection is disposed at each of the wellheads 120. The modification of the elevator shaft 110 of this embodiment is: an escape space 130 and an escape opening 140 are provided at a side of the elevator shaft 110 opposite to the wellhead 120, and the escape opening 140 is located at a bottom of the elevator shaft 110, which communicates with the first floor or the second floor. Escape space 130 is vertically disposed, and escape opening 140 is in communication with elevator shaft 110 through escape space 130. Generally, the width of the escape space 130 may be smaller than the width of the elevator shaft 110 so that the side wall of the elevator shaft 110 may be installed with a rail for ensuring smooth movement of the elevator body 200.

Referring to fig. 1, the fire escape system of the ascending elevator disclosed in the present embodiment includes an elevator body 200, a ladder 300, a hanger 400, a first emergency button, and a second emergency button.

The elevator body 200 is located within the elevator hoistway 110, and the elevator body 200 can slide up and down along the elevator hoistway 110. A second opening and closing door 210 is provided at a side of the elevator body 200 facing the wellhead 120, and an emergency escape door 220 is provided at a side of the elevator body 200 facing the escape space 130. A first emergency button is installed at the wellhead 120 for forcibly opening the first switch door 150 at the elevator shaft 110. A second emergency button is installed in the elevator body 200, the second emergency button being for forcibly opening the emergency escape door 220 of the elevator body 200 toward the escape space 130 side.

The cat ladder 300 is installed in the escape space 130, and the bottom of the cat ladder 300 extends to the escape opening 140. A rest platform 500 is further disposed at each position corresponding to the wellhead 120 in the escape space 130, and the rest platform 500 is spaced from the ladder 300, so that a user can temporarily drop his/her foot or rest.

One end of the suspension 400 is rotatably connected to the building 100, and the rotational axis of the suspension 400 is located below the wellhead 120. When the suspension 400 rotates, the free end of the suspension 400 can be rested on the rest platform 500, so that the suspension 400 is fixed, and a person can move to the rest platform 500 through the suspension 400 and enter the escape opening 140 through the ladder 300.

Referring to fig. 7, a locking groove 510, a first sliding groove 520, a second sliding groove 530, and a third sliding groove 540 are provided on each rest platform 500. The locking groove 510 is disposed at the top of the rest platform 500, and the locking groove 510 extends along the width direction of the rest platform 500, and both ends of the locking groove 510 extend to both end surfaces of the rest platform 500, respectively. The first sliding groove 520 and the second sliding groove 530 are respectively disposed on two sidewalls of the locking groove 510, and the first sliding groove 520 and the second sliding groove 530 are disposed opposite to each other. The first sliding groove 520 is located at a side of the locking groove 510 facing away from the wellhead 120, the second sliding groove 530 is located at a side of the locking groove 510 facing towards the wellhead 120, and one end of the second sliding groove 530 facing away from the locking groove 510 extends onto an end surface of the rest platform 500 in the length direction. The third sliding groove 540 is located at the bottom of the locking groove 510, and the third sliding groove 540 extends downward along the height of the rest platform 500.

A locking structure 700 is further provided on the rest platform 500, and the locking structure 700 includes a first slider 710, a second slider 720, and a first elastic member 730, and the first slider 710 and the second slider 720 are slidably connected to the rest platform 500. The first slider 710 is located in the third runner 540, the first slider 710 being movable in the height direction of the rest platform 500, a portion of the first slider 710 extending into the first locking slot 510 and a portion of the first slider 710 extending into the first runner 520, the respective two portions of the first slider 710 simultaneously exiting the locking slot 510 and the first runner 520 as the first slider 710 moves down the third runner 540. The second slider 720 is positioned within the first chute 520, and the second slider 720 is movable along the first chute 520 and can enter or leave the second chute 530. The first elastic member 730 is also located in the first sliding slot 520, and two ends of the first elastic member 730 are respectively connected with the rest platform 500 and the first slider 710, and the first elastic member 730 makes the first slider 710 have a tendency to move towards the second sliding slot 530.

Wherein the lower surface of the second slider 720 may be provided as a slope such that the height of the second slider 720 is gradually reduced toward the locking groove 510. Thus, the suspension 400 can be locked more firmly, so that the suspension 400 is more stable, and the safety of related personnel walking on the suspension is improved.

In addition, the locking structure 700 further includes a first control block 740, the first control block 740 being located in the second slide groove 530, and the first slider 710 being capable of pushing the first control block 740 to move outwardly when the first slider 710 is extended into the second slide groove 530.

Referring to fig. 4 to 6, the suspension 400 includes a first bracket 410, a second bracket 430 and a connection shaft 420, wherein the first bracket 410 and the second bracket 430 are mounted on the connection shaft 420, the first bracket 410 and the second bracket 430 are spaced along the connection shaft 420, and the first bracket 410 and the second bracket 430 are respectively located at two sides of the wellhead 120. The connection shaft 420 is rotatably connected with the building 100, and the connection shaft 420 is disposed along the moving direction of the first opening and closing door 150, and the first bracket 410 and the second bracket 430 are respectively engaged with one locking structure 700.

The connection shaft 420 is connected with the first opening and closing door 150 through a driving structure 600, wherein the driving structure 600 includes a rack 610, a first gear 640, a sliding bar 630, a second gear 620, a third elastic member, a worm wheel and a worm 660.

The rack 610 is installed at the bottom of the first switch door 150, and the rack 610 can move along with the first switch door 150, the first gear 640 is rotationally connected with the building 100, and the first gear 640 is meshed with the rack 610, so that when the first switch door 150 moves, the first gear 640 can be driven to rotate.

The worm 660 is connected with the connecting shaft 420, and the worm 660 is coaxially arranged with the connecting shaft 420, and the worm 660 can drive the connecting shaft 420 to rotate together when rotating. The worm gear is rotatably coupled to the building 100 and is engaged with the worm 660, the worm gear being coaxially disposed with the first gear 640.

The slide bar 630 is slidably connected to the worm wheel, the slide bar 630 is movable in the axial direction of the worm wheel, and the worm wheel and the slide bar 630 are rotatable in synchronization. The second gear 620 is mounted to a first end of the sliding bar 630, and the second gear 620 and the sliding bar 630 can rotate synchronously, and a second end of the sliding bar 630 can enter or leave the elevator shaft 110. Both ends of the third elastic member are connected to the building 100 and the sliding bar 630, respectively, and the third elastic member makes the sliding bar 630 have a tendency to enter the elevator shaft 110. When the second end of the connecting rod enters the elevator shaft 110, the second gear 620 is engaged with the first gear 640, and when the elevator body 200 moves to the corresponding shaft mouth 120, the elevator body 200 pushes the sliding rod 630 out of the elevator shaft 110, and at this time, the second gear 620 is separated from the first gear 640.

Referring to fig. 4 and fig. 7 to 9, a clamping groove is provided on the first bracket 410, and the clamping groove faces one side of the second bracket 430 on the first bracket 410. The second bracket 430 is provided with a support plate 440, a second elastic member and a second control block 450, the support plate 440 is rotatably connected with the second bracket 430, the rotation axis of the support plate 440 is parallel to the length direction of the second bracket 430, and the support plate 440 can be clamped into the clamping groove when the support plate 440 rotates towards the first bracket 410. The second elastic member is connected to the second bracket 430 and the support plate 440 at both ends thereof, respectively, and the second elastic member makes the support plate 440 have a tendency to rotate toward the first bracket 410. When the first bracket 410 and the second bracket 430 are snapped into the locking groove 510, the position of the second control block 450 corresponds to the position of the first control block 740, i.e. the first control block 740 can be pushed to move when moving in a direction away from the locking groove 510. The second control block 450 is initially positioned on the rotational path of the support plate 440, and the first control block 740 can push the second control block 450 to release the restriction of the support plate 440 when the second slider 720 moves toward the locking groove 510. At this time, the supporting plate 440 can rotate to be clamped into the clamping groove on the first bracket 410, and the supporting plate 440 is stably limited by the clamping groove, so that a related person can move from the wellhead 120 to the rest platform 500 through the supporting plate 440, and leave the building 100 through the ladder stand 300.

Specifically, the support plate 440 is provided with a stop block 442, the stop block 442 is bent, so that a limit groove can be formed between the stop block 442 and the support plate 440, the second control block 450 is located in the limit groove, and the height of the second control block 450 is greater than the width of the limit groove. The sliding position of the first control block 740 is staggered from the stop 442. Initially, the second control block 450 is clamped in the limiting groove to limit the support plate 440, so that the support plate 440 cannot rotate inwards along the paper surface in the figure; when the first control block 740 pushes the second control block 450, the second control block 450 leaves the limit groove, but the first control block 740 is not contacted with the stop block 442, and at this time, the support plate 440 can rotate inwards along the paper surface in the figure and is clamped into the clamping groove on the first bracket 410.

Since the top and bottom of the elevator are generally provided with the wire ropes, a gap 441 may be provided at the middle position of the support plate 440 to avoid the position of the wire ropes, while not affecting the movement of the related person.

The fire escape system of the elevator disclosed by the embodiment works as follows:

when the elevator body 200 moves to the corresponding shaft mouth 120, the elevator body 200 pushes the sliding rod 630 at the corresponding shaft mouth 120 to leave the elevator shaft 110, and at this time, when the elevator door is normally opened, the first gear 640 is not meshed with the second gear 620, so that the operation of the first door will not drive the subsequent structural operation.

When the elevator body 200 is separated from the corresponding shaft mouth 120, the sliding rod 630 is returned to the elevator shaft 110 by the pushing force of the third elastic member and the first gear 640 is engaged with the second gear 620.

When the elevator encounters a fault, a person in the elevator can forcedly open the emergency escape door 220 on the elevator body 200 through the second button, and at this time, the person in the elevator can reach the rest platform 500 from the emergency escape door 220, and then can move downward through the cat ladder 300 and escape through the escape opening 140.

When the building 100 is in danger such that the elevator cannot operate, a person outside the elevator can forcibly open the first opening and closing door 150 at the wellhead 120 through the first emergency button. In the process of opening the first opening and closing door 150, since the first gear 640 and the second gear 620 are in the engaged state, the sliding rod 630 and the worm wheel can be driven to rotate by the first gear 640 and the second gear 620, and the worm 660 can be driven to rotate. The worm 660 rotates to drive the suspension 400 to rotate downwards, and when the free end of the suspension 400 is clamped into the locking groove 510, the free end of the suspension 400 pushes the second slider 720 to move downwards. When the second slider 720 descends to the lowest position, the second slider 720 just leaves the locking groove 510 and the first sliding groove 520 completely, and at this time, the first slider 710 moves towards the second sliding groove 530 under the pushing force of the first elastic member 730 and pushes the first control block 740 in the second sliding groove 530 to move, so that the second control block 450 releases the restriction on the supporting plate 440. Then, the supporting book can rotate towards the first bracket 410 under the action of the second elastic piece and be clamped into the clamping groove on the first bracket 410, at this time, a channel through which a person can pass is formed on the first bracket 410 and the second bracket 430, and related persons can enter the corresponding rest platform 500 through the channel and leave the building 100 through the ladder stand 300.

When people crawl on the ladder 300, the people can choose to rest at the next rest platform 500 for a certain time after crawling at a certain height due to different physique of each person.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a lift elevator conflagration escape system for install in the elevator shaft department of building, one side of elevator shaft is provided with a plurality of well heads, and a plurality of the well heads are followed the direction of height interval setting of elevator shaft, just the elevator shaft is at every the first switch door is all installed to the well head, the bottom of the opposite side of elevator shaft is provided with the escape mouth, just the elevator shaft with the corresponding one side of escape mouth is provided with the escape space, just the escape space extends to escape mouth department, its characterized in that includes:

the elevator body is positioned in the elevator shaft, the elevator body can slide up and down along the elevator shaft, a second switch door is arranged on one side of the elevator body, which faces the wellhead, and an emergency escape door is arranged on one side of the elevator body, which faces the escape space;

a cat ladder, which is arranged in the escape space;

the suspension is installed at the wellhead and is rotationally connected with the building, when the suspension rotates downwards, the suspension can rotate to connect the wellhead with the ladder stand, and when the suspension rotates upwards, the suspension can rotate to a position which does not affect the normal lifting of the elevator;

the first emergency button is arranged at the wellhead and used for opening the first switch door; and

the second emergency button is arranged in the elevator body and is used for opening the emergency escape door.

2. The fire escape system of claim 1, wherein a rest platform is arranged at a position corresponding to each suspension in the escape space, the rest platform is arranged adjacent to the ladder stand, a locking groove is arranged at the bottom of the rest platform, and the free ends of the suspensions can form clamping fit with the locking grooves.

3. The lift fire escape system according to claim 2, wherein the rest platform is provided with a locking structure, the locking structure comprises a first slider, a second slider and a first elastic member, the first slider and the second slider are both in sliding connection with the rest platform, the first slider can slide along the height direction of the rest platform, the first end of the first slider extends into the locking groove, so that the first slider can be pushed to move downwards when the suspension enters the locking groove, the second slider can move along the rest platform towards the wellhead, the second slider is located on the side of the locking groove away from the wellhead, the first elastic member is located on the side of the second slider away from the locking groove, the first end of the first slider extends to the end of the second slider towards the locking groove, and the first elastic member can push the second slider to move towards the locking groove when the first slider moves downwards and leaves the second slider.

4. A fire escape system for a lift elevator according to claim 3, wherein a lower surface of the second slider is provided with a slope such that a height of the second slider is gradually reduced toward the locking groove.

5. The fire escape system of claim 3, wherein the rest platform is provided with a first chute, a second chute and a third chute, the first chute and the second chute are respectively arranged on two side walls of the locking groove, the first chute and the second chute are oppositely arranged, the first chute is positioned on one side of the locking groove, which faces away from the wellhead, the second chute is positioned on one side of the locking groove, which faces towards the wellhead, and one end of the second chute, which faces away from the locking groove, extends to an end face of the rest platform in the length direction, the third chute is positioned at the bottom of the locking groove, and the third chute extends downwards along the height of the rest platform;

the first sliding block and the first elastic piece are both located in the first sliding groove, the first elastic piece enables the first sliding block to have a trend of moving towards the second sliding groove, the second sliding block is located in the third sliding groove, and the second sliding block can enter or leave the first sliding groove and the locking groove.

6. The lift fire escape system of claim 3, wherein the suspension includes a first bracket, a second bracket, and a connecting shaft, the first bracket and the second bracket are both mounted on the connecting shaft, the first bracket and the second bracket are disposed along the connecting shaft at intervals, the connecting shaft is rotatably connected with the building, the connecting shaft is disposed along the moving direction of the first switch door, and the first bracket and the second bracket are respectively engaged with one of the locking structures.

7. The fire escape system of claim 6, wherein the first bracket is provided with a clamping groove, and the clamping groove is formed on one side of the first bracket facing the second bracket;

be provided with backup pad and second elastic component on the second support, the backup pad with the second support rotates to be connected, the axis of rotation of backup pad with the length direction of second support is parallel, and works as the backup pad orientation when the first support rotates the backup pad can block into in the draw-in groove, the both ends of second elastic component respectively with the second support with the backup pad is connected, the second elastic component makes the backup pad has orientation first support pivoted trend.

8. The lift fire escape system of claim 7 wherein the locking structure further comprises a first control block, the first control block coupled to the rest platform;

the second support is provided with a second control block at a position corresponding to the first control block, the second control block is in sliding connection with the second support, the second control block is located on a rotation path of the support plate, and when the second slider moves towards the locking groove, the first control block can push the second control block to release the restriction on the support plate.

9. The fire escape system of claim 7, wherein the support plate is provided with a notch at a position corresponding to a wire rope of the elevator body.

10. The lift fire escape system of claim 6, further comprising a transmission structure including a rack, a first gear, a sliding bar, a second gear, a third elastic member, a worm gear, and a worm;

the rack is arranged at the bottom of the first switch door, the first gear is rotationally connected with the building, and the first gear is meshed with the rack;

the worm is connected with the connecting shaft, the worm wheel is rotationally connected with the building, the worm wheel is meshed with the worm, and the worm wheel and the first gear are coaxially arranged;

the sliding rod is in sliding connection with the worm wheel, the second gear is installed in the first end of sliding rod, the second end of sliding rod can get into or leave the elevator shaft, the both ends of third elastic component respectively with the building with the sliding rod is connected, the third elastic component makes the sliding rod has the trend of getting into the elevator shaft, when the connecting rod gets into the elevator shaft, the second gear with first gear engagement, when the elevator body removes to corresponding well head, the elevator body promotes the sliding rod is left the elevator shaft, and at this moment the second gear with first gear separation.