CN213834160U

CN213834160U - Refuge ladder for conveying sickbed

Info

Publication number: CN213834160U
Application number: CN202022046688.0U
Authority: CN
Inventors: 汤博宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-07-30
Anticipated expiration: 2030-09-17

Abstract

The utility model relates to a ladder of taking refuge that sick bed carried, include: a gravity speed reducer provided with a speed reducer and a transmission shaft extending from the speed reducer, wherein the transmission shaft is further arranged in a driving wheel in a penetrating way; the upper end and the lower end of the two first circulating chains are respectively engaged with a first gear, and the first gears are engaged and linked with the driving wheel; the upper end and the lower end of the inner part of the two second circulating chains are respectively engaged with a second gear which is linked with the driving wheel through a transmission chain; the upper end and the lower end between the first circulating chain and the second circulating chain are respectively provided with two first guide rails and two second guide rails; the upper part of the plurality of load seats is provided with a load bearing surface, the load bearing surface is provided with two guide grooves for guiding and positioning four trundles of the sickbed, two sides of the plurality of load seats are respectively provided with a shaft lever, a roller and a buckling claw, the two shaft levers are fixedly penetrated in a preset buckling hole of the second circulating chain, and the two rollers of the load seats are abutted against the two first guide rails so as to enable the two buckling claws to be hooked in a hanging rod of the two first circulating chains for positioning.

Description

Refuge ladder for conveying sickbed

Technical Field

The utility model relates to a ladder of taking refuge that sick bed carried, it leads to the floor guide rail of the ladder entry to be equipped with on the floor of a building to indicate especially, and take refuge and be equipped with the two guide slots that supply the four truckles of sick bed to do a guide location on the loading end of the carrier seat of ladder of taking refuge to make the sick bed push the ladder of taking refuge fast and flee.

Background

Because the cities in which people live are narrow and dense and the land price is increasingly expensive at present, high-rise buildings on the floors of the cities are extremely common, the high-rise buildings specified by the current fire control laws and regulations also need to be provided with escape equipment with safety consideration as a reference, and the main reason of serious death injury caused by the fact that the buildings are not emergent to escape always at intervals in China is mainly that the escape measures are insufficient; in addition to the fact that public safety inspection cannot be completely implemented, the escape measures of the building itself are insufficient and difficult to blame, for example, a fire accident occurring in the jianian building in jiayi city, and some sufferers can be killed by the building jump because of the lack of escape and avoidance, so how to deal with various unexpected disasters such as: when disasters without early warning, such as fire, earthquake, and the like, occur, the escape problem of the accommodation personnel living in the high floor is obviously the person who is supposed to be looked at by the residents in the big building. The rope type vertical landing equipment and the escape ladder are the most commonly used in the existing common high-rise building escape equipment, and the rope type vertical landing equipment is not easy to operate and is not easy to try due to shaking generated in climbing and hanging, so that the rope type vertical landing equipment is not suitable for all people, and the device is particularly difficult to provide rapid guarantee for safe escape and escape for old people, patients, mobility-handicapped people and children; in fact, the general people do not have experience in using the vertical falling escape device, the vertical falling escape device cannot be used immediately in case of emergency, and most people are afraid of falling to high altitude directly in unfamiliar situations, and a falling accident with improper operation can also occur.

Furthermore, people know that water and fire are inexistent, particularly, the fire accident of buildings is more frequent, when the fire happens, in addition to the fatal crisis of flame, dense smoke and the like, the darkness generated after the power is lost is a big killer for preventing escape, and when the power is lost, people can be quickly taken away from the electric ladder of the fire scene and the electric ladder is the same as the nominal ladder. In view of this, general fire-fighting escape equipment must meet the principle of no electric power available, and therefore there are some existing escape equipment without electric power, such as escape slow-descent pipe (rescue bag) and slow-descent machine, in which the slow-descent machine is internally provided with a deceleration regulator to achieve the effect of emergency escape, and the principle of the slow-descent machine is the same as that of the ancient pulley-type old well, and the slow-descent machine utilizes a pulley device and performs centrifugal force braking to control the descent speed, and the equipment cost is low, but the operation is complicated, and the operating tables such as "hanging, losing, sleeving, binding, pushing" must be remembered, when in operation, the personnel must hang and slowly descend outside the outer wall of a high-rise building, and the personnel are directly exposed to the extremely high environment, and are very easy to operate, and on the other hand, the operation program and tables are too complicated, if the personnel (such as firefighters) are not trained for a long time, the escape efficiency is low (only one person is operating), so the use effect is poor.

In view of the above, the escape apparatus is the simplest in structure of the rescue bag, and is a funnel-shaped girdle with an elastic effect arranged at a proper position in a high tensile resistance distribution pipe, and the girdle has a slow descending effect, so that people can quickly slide to the lower part of the distribution pipe from the upper part of the distribution pipe for escape. For the evacuees who are inconvenient to move, the difficulty of using the rescue bag for escape is high, so the rescue bag still has defects in use.

Please refer to taiwan publication No. I652092, which discloses a refuge ladder for people to escape, and is limited by the small area of the carrying seat, and each carrying seat can provide several people for escaping people, or provide an escape for people who take a wheelchair and people who push a wheelchair. Therefore, the patient lying in bed can not escape by utilizing the escape ladder, and in order to avoid the regret, the utility model discloses be the escape ladder designed to the patient lying in bed, can effectively help it to escape and take refuge.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above problems and disadvantages, the present invention provides a refuge ladder for sickbed transportation, which is designed by collecting relevant data and evaluating and considering in multiple directions.

In order to achieve the above object, the utility model adopts the following technical scheme:

the refuge ladder for conveying sickbeds is arranged in a building and is characterized in that: the first floor of the building is provided with a first floor guide rail for leading a sickbed to an entrance of the refuge ladder, the refuge ladder is internally provided with a preset body, the top of the preset body is internally provided with a preset loading space, and the refuge ladder conveyed by the sickbed comprises:

the gravity speed reducer is arranged in the preset loading space of the preset body, is provided with a speed reducer and extends to form a transmission shaft, and the transmission shaft penetrates through a driving wheel;

two first circulating chains which are arranged at two opposite sides of the preset body, wherein the upper end and the lower end of the two first circulating chains are respectively meshed with a first gear, and the first gear at the upper end is meshed with the driving wheel of the gravity speed reducer;

two second circulating chains which are arranged at two opposite sides of the preset body and keep a preset distance with the two first circulating chains, and the upper end and the lower end of the two first circulating chains are respectively meshed with a second gear, and the second gear at the upper end is linked with the driving wheel of the gravity speed reducer through a transmission chain;

the first guide rail is arranged at the upper end position between the first circulating chain and the second circulating chain;

the second guide rail is arranged at the lower end position between the first circulating chain and the second circulating chain; and

the two rollers of the load seat are abutted against the two first guide rails so that the two buckling claws are hooked in a hanging rod of the two first circulating chains to form positioning; and the two rollers of the carrying seat are abutted against the second guide rail so that the two buckling claws are separated from the hanging rod of the first circulating chain and turn over and rise along with the two second circulating chains through the two shaft rods.

The refuge ladder conveyed by the sickbed comprises: the upper part of the plurality of load seats is provided with a load bearing surface, and the load bearing surface is provided with two guide grooves for the four casters of the sickbed to form guiding and positioning.

The refuge ladder conveyed by the sickbed comprises: the first guide rail also comprises an inclined rising part, a bending part, an inclined falling part and a joint abutting end; the second guide rail also comprises a separation abutting end and an arc-shaped part.

The refuge ladder conveyed by the sickbed comprises: the floor guide rails are arc-shaped rails which are symmetrical and have wide outer parts and narrow inner parts.

The refuge ladder conveyed by the sickbed comprises: the building is also provided with a slope plate at the exit of the refuge ladder on the first floor.

two first slide rails arranged on two opposite sides of the preset body;

the second sliding rails are arranged on two opposite sides of the preset body and keep a preset distance with the first sliding rails;

the two circulating chains are arranged in the two second sliding rails, the upper end and the lower end of the inside of each circulating chain are respectively meshed with a reduction gear set and a circulating gear, the reduction gear sets are meshed with the driven wheels on the two sides of a linkage gear set, the driven wheels in the middle of the linkage gear set are meshed and linked with the driving wheel of the gravity speed reducer through a transmission chain sleeved outside, and a connecting rod penetrating through the center is arranged between the driven wheels;

the first guide rail is arranged at the upper end position between the first slide rail and the second slide rail;

the second guide rail is arranged at the lower end position between the first slide rail and the second slide rail; and

the two oblique extending rollers of the load seat are abutted against the two first guide rails so that the two plate end rollers slide into the two first guide rails to form positioning; and the two plate end rollers of the carrying seat slide downwards on the second guide rail, and the two plate end rollers slide to the tail end of the second guide rail to be separated, so that the carrying seat turns over and rises along with the two circulating chains through the two shaft rods.

The refuge ladder conveyed by the sickbed comprises: the upper part of the plurality of load seats is provided with a load bearing surface, and the load bearing surface is provided with two limit guide rails for the four casters of the sickbed to form guiding and positioning.

The refuge ladder conveyed by the sickbed comprises: the reduction gear set comprises a small fluted disc meshed with the driven wheel on two sides of the linkage gear set, and one side of the small fluted disc opposite to the driven wheel is connected with a big fluted disc penetrating through the inside of the circulating chain.

By means of the structure, the floor guide rail for leading the sickbed to the entrance of the refuge ladder is arranged on the floor of the building, and the bearing surface of the carrying seat of the refuge ladder is provided with two guide grooves for guiding and positioning the four castors of the sickbed, so that the sickbed can be quickly pushed into the refuge ladder for escaping.

Drawings

Fig. 1 is a perspective view of an evacuation ladder according to a first embodiment of the sickbed guiding mechanism of the present invention.

FIG. 2 is a side view of the ladder according to the first embodiment of the present invention.

Fig. 3 is a first operation diagram of the first embodiment of the invention, in which the carrier seat of the ladder is engaged with the first circulation chain at the first guide rail.

FIG. 4 is a second operation diagram of the first embodiment of the invention, in which the carrier seat of the ladder is engaged with the first circulation chain at the first guide rail.

Fig. 5 is a first operation diagram of the first embodiment of the invention, in which the carrier seat of the ladder is separated from the first circulating chain at the second guide rail.

FIG. 6 is a second operation diagram of the first embodiment of the invention, in which the carrier base of the ladder is separated from the first circulating chain at the second guide rail.

Fig. 7 is a perspective view of an evacuation ladder according to a second embodiment of the sickbed guide mechanism of the present invention.

Fig. 8 is a first operation diagram of the refuge ladder according to the second embodiment of the present invention, in which the carriage is coupled to the first circulation chain at the first guide rail.

FIG. 9 is a second operation diagram of the refuge ladder according to the second embodiment of the present invention, in which the carrier base is coupled to the first circulation chain at the first guide rail.

FIG. 10 is a first operation diagram of the refuge ladder according to the second embodiment of the present invention, in which the carriage is separated from the first circulation chain at the second guide rail.

FIG. 11 is a second operation diagram of the refuge ladder according to the second embodiment of the present invention, in which the carrier base is separated from the first circulation chain at the second guide rail.

Description of reference numerals: 1-a building; 10-entrance of refuge ladder; 11-floor; 12-a hospital bed; 121-casters; 13-floor rail; 14-ramp plate; 2-refuge ladder; 21-gravity reduction means; 211-a reducer; 2111-drive shaft; 212-a drive wheel; 213-an electric motor; 22-a first endless chain; 221-a first gear; 222-a hanging rod; 23-a second endless chain; 231-a second gear; 24-a drive chain; 25-a first guide rail; 251-a ramp-up portion; 252-a bending section; 253-a ramp down portion; 254-engaging the retaining end; 26-a second guide rail; 261-disengagement abutment; 262-an arc; 27-a carrier seat; 271-bearing surface; 2710-a guide channel; 272-shaft; 273-roller; 274-snap claws; 3-a refuge ladder; 31-gravity deceleration means; 311-speed reducer; 3111-a drive shaft; 312-a driving wheel; 313-an electric motor; 32-a first slide rail; 33-a second slide rail; 34-an endless chain; 341-reduction gear set; 3411-a small fluted disc; 3412-big fluted disc; 342-a circulating gear; 35-linkage gear set; 351-driven wheel; 352-a drive chain; 353-a connecting rod; 36-a first guide rail; 361-a ramp; 362-a bending section; 363-a ramp down; 364-engaging the holding end; 37-a second guide rail; 371-release holding end; 372-an arc; 38-a carrier; 381-bearing surface; 382-a limit guide rail; 383-a shaft; 384-oblique extending rollers; 385-plate end rollers.

Detailed Description

Referring to fig. 1 to 6, there are shown a three-dimensional external view of a first embodiment of the invented ladder, a side view of the first embodiment, a first and a second schematic actions of the first embodiment of the ladder, wherein the first guide rail is joined to the first circulating chain, and the second guide rail is separated from the first circulating chain, as can be seen clearly from the drawings, the ladder for transporting the sickbed of the present invention is installed in a building 1, a first floor guide rail 13 for leading a sickbed 12 to an entrance 10 of the ladder is installed on a floor 11 of the building 1, the floor guide rail 13 is a two-symmetrical arc rail with an outer width and an inner width, a slope plate 14 is further installed at the exit of the ladder 1, a preset body (not shown) is installed in the ladder 2, a preset loading space (not shown) is provided in the top of the preset body, comprising:

a gravity speed reducer 21 disposed in the predetermined loading space of the predetermined body, the gravity speed reducer 21 having a speed reducer 211 and a transmission shaft 2111 extending therefrom, the transmission shaft 2111 further penetrating through a driving wheel 212. The gravity reduction device 21 includes an Alternating Current (AC) motor 213, a speed reducer 211, a drive (AC in/AC out and DC in/AC out), and a Direct Current (DC) battery pack or a generator.

Two first circulating chains 22 are disposed on two opposite sides of the preset body, and a first gear 221 is engaged with each of the upper and lower ends of the two first circulating chains 22, and the first gear 221 located at the upper end is engaged with the driving wheel 212 of the gravity speed reducer 21.

Two second circulating chains 23 disposed on opposite sides of the predetermined body and keeping a predetermined distance from the two first circulating chains 22, and a second gear 231 engaged with upper and lower ends of the two first circulating chains 22 respectively, and the second gear 231 at the upper end is linked with the driving wheel 212 of the gravity reduction device 21 via a transmission chain 24.

Two first guide rails 25 disposed at the upper end between the first endless chain 22 and the second endless chain 23, the first guide rails 25 further include a slant lifting portion 251, a bending portion 252, a slant lowering portion 253, and a joint abutting end 254.

Two second guide rails 26 disposed at the lower end between the first endless chain 22 and the second endless chain 23, the second guide rails 26 further include a separation abutting end 261 and an arc-shaped portion 262.

A plurality of loading seats 27, which have a bearing surface 271 on the top thereof and two guide grooves 2710 for guiding and positioning the four casters 121 of the patient's bed 12 on the bearing surface 271, so that the patient's bed 12 will not slide, and two sides of the plurality of loading seats 27 each have a shaft 272, a roller 273 and a pawl 274, the two shafts 272 are inserted and fixed in a predetermined fastening hole (not shown) of the second circulating chain 23, the two rollers 273 of the loading seats 27 are supported on the two first guide rails 25, so that the two pawls 274 are hooked on a hanging rod 222 of the two first circulating chains 22 for positioning; the two rollers 273 of the carrier 27 abut against the second guiding rail 26 to separate the two clasps 274 from the hanging rod 222 of the first endless chain 22, and turn over and lift up along with the second endless chain 23 via the two shafts 272.

As shown in fig. 3, when the shaft 272 of the carrier 27 is inserted into the predetermined buckling hole of the second endless chain 23 and circularly ascends to the high floor of the building 1, the shaft 272 of the carrier 27 is located at the top side of the second gear 231, and the roller 273 of the carrier 27 slides from the inclined portion 251 to the bent portion 252 of the first guiding rail 25. When the shaft 272 of the carriage 27 moves to an upper position slightly higher than the first guide rail 25, the roller 273 of the carriage 27 slides from the bent portion 252 of the first guide rail 25 to the descending portion 253. As shown in fig. 4, when the shaft 272 of the carrier 27 moves to a position about the bottom side of the first guide rail 25, the roller 273 of the carrier 27 slides from the inclined portion 253 of the first guide rail 25 to the engaging and holding end 254, and the catch 274 of the carrier 27 is located above the first endless chain 22, after the roller 273 slides from the engaging and holding end 254, the catch 274 of the carrier 27 hooks into the hanging rod 222 of the first endless chain 22 to be positioned, whereby the carrier 27 of the shelter ladder 2 is engaged with the first endless chain 22 at the first guide rail 25.

As shown in fig. 5, when a carriage 27 descends to the first floor and pushes the patient bed 12 to leave along the slope plate 14 at the exit of the evacuation ladder of the first floor, the shaft 272, the roller 273 and the latch 274 of the carriage 27 are located at about the center of the first gear 221 and the second gear 231, and the roller 273 of the carriage 27 abuts against the separation abutting end 261 of the second guiding rail 26. When the shaft 272 of the carrier 27 descends along with the second endless chain 23 to make the carrier 27 form an inclined state, the roller 273 of the carrier 27 forms a seesaw structure with the separation-holding end 261 as a fulcrum, and the latch 274 of the carrier 27 is rotated by a rotation stress to separate from the hanging rod 222 of the first endless chain 22. As shown in FIG. 6, the shaft 272 of the carrier 27 disengaged from the first endless chain 22 circularly ascends along with the second endless chain 23, and the carrier 27 of the evacuation ladder 2 is disengaged from the first endless chain 22 at the second guide rail 26 by the above-mentioned action. Of course, the carrier seat 27 will be in the state shown in FIG. 3 after it is raised to the highest position, so as to complete the circulation operation of the evacuation ladder 2.

Referring to fig. 7 to 11, there are shown a three-dimensional external view of a refuge ladder of a second embodiment with a sickbed guiding mechanism of the present invention, a first and a second schematic action diagrams of a carrier seat of the refuge ladder of the second embodiment joined to a first circulating chain at a first guide rail, and a first and a second schematic action diagrams of a carrier seat of the refuge ladder of the second embodiment separated from the first circulating chain at a second guide rail, as can be clearly seen from the drawings, the refuge ladder transported by the sickbed of the present invention is installed in a building 1, a floor guide rail 13 for leading a sickbed 12 to a ladder entrance 10 is installed on a floor 11 of the building 1, the floor guide rail 13 is an arc rail with two symmetrical shapes and narrow outside, a slope plate 14 is further installed at the refuge ladder exit of the floor of the building 1, a preset body (not shown) is installed in the refuge ladder 3, a preset loading space (not shown) is installed in the top of the preset body, the method comprises the following steps:

a gravity speed reducer 31 disposed in the predetermined loading space of the predetermined body, the gravity speed reducer 31 having a speed reducer 311 and a transmission shaft 3111 extending therefrom, the transmission shaft 3111 further passing through a driving wheel 312. The gravity reduction device 31 includes an Alternating Current (AC) motor 313, a reduction gear 311, a drive (AC in/AC out and DC in/AC out), and a Direct Current (DC) battery pack or a generator.

Two first slide rails 32 are disposed on two opposite sides of the predetermined body.

Two second slide rails 33 disposed on two opposite sides of the predetermined body and spaced from the first slide rails 32 by a predetermined distance.

Two circulating chains 34, which are disposed in the two second slide rails 33, wherein the upper and lower ends of the two circulating chains are respectively engaged with a reduction gear set 341 and a circulating gear 342, the reduction gear set 341 is engaged with the driven wheels 351 at two sides of a linkage gear set 35, the driven wheel 351 at the middle of the linkage gear set 35 is engaged with the driving wheel 312 of the gravity reduction device 31 through a transmission chain 352 sleeved outside, and a connecting rod 353 penetrating through the center is disposed between the driven wheels 351.

The reduction gear set 341 includes a small toothed disc 3411 engaged with the driven wheel 351 on both sides of the interlocking gear set 35, and a large toothed disc 3412 inserted into the circulating chain 34 is connected to the other side of the small toothed disc 3411.

Two first guide rails 36 are disposed at upper ends between the first slide rail 32 and the second slide rail 33. The first guiding rail 36 further includes a slant portion 361, a bending portion 362, a slant portion 363, and a joint abutting end 364.

Two second guide rails 37 disposed at the lower end between the first slide rail 32 and the second slide rail 33. The second guide rail 37 further includes a disengagement end 371 and an arc-shaped portion 372.

A plurality of carrier seats 38, wherein a carrying surface 381 is provided above the carrier seats 38, two limiting guide rails 382 for guiding and positioning the four casters 121 of the hospital bed 12 are provided on the carrying surface 381, and two sides of the carrier seats 38 are respectively provided with a shaft rod 383, an obliquely extending roller 384 and a board end roller 385, the shaft rod 383 is fixedly inserted into a preset buckling hole (not shown) of the two circulating chains 34, the obliquely extending rollers 384 of the carrier seats 38 abut against the two first guide rails 36, so that the board end rollers 385 slide into the two first slide rails 32 for positioning; the two board-end rollers 385 of the carriage 38 slide down on the second guide rail 37, and the two board-end rollers 385 slide to the end of the second guide rail 37 to disengage, so that the carriage 38 is turned over and lifted along with the two circulating chains 34 by the two shaft rods 383.

As shown in fig. 8, when the shaft 383 of the carrier 38 is inserted into the predetermined locking hole of the two-cycle chain 34 and then circularly ascends to the high floor of the building 1, the shaft 383 of the carrier 38 is located at the top side of the reduction gear set 341, and the tilting roller 384 of the carrier 38 slides from the tilting portion 361 of the first guide rail 36 to the bending portion 362. When the shaft 383 of the carriage 38 moves to an upper position slightly higher than the first rail 36, the tilting roller 384 of the carriage 38 slides from the bending part 362 of the first rail 36 to the tilting part 363. As shown in fig. 9, when the shaft 383 of the carriage 38 moves to a position about the bottom side of the first guide rail 36, the inclined roller 384 of the carriage 38 slides from the inclined portion 363 of the first guide rail 36 to the engaging and holding end 364, and the board-end roller 385 of the carriage 38 is located above the first slide rail 32, and after the inclined roller 384 slides from the engaging and holding end 364, the board-end roller 385 of the carriage 38 slides into the first slide rail 32 to be positioned, whereby the carriage 38 of the emergency ladder 3 is engaged with the first slide rail 32 at the first guide rail 36.

As shown in fig. 10, when a carriage 38 descends to a first floor and pushes the sickbed 12 to leave along the slope plate 14 at the exit of the evacuation ladder of the first floor, the shaft 383, the oblique roller 384 and the plate-end roller 385 of the carriage 38 are located at the bottom ends of the first slide rail 32 and the second slide rail 33, and the plate-end roller 385 of the carriage 38 abuts against the separation abutting end 371 of the second guide rail 37. As shown in fig. 11, when the plate-end roller 385 of the carriage 38 descends along the endless chain 34 to form an inclined state of the carriage 38, the roller 385 of the carriage 38 slides down to the arc-shaped portion 372 of the second guide rail 37. The shaft 383 of the carriage 38 which is separated from the first slide rail 32 circularly ascends along with the circulating chain 34, and the carriage 38 of the refuge ladder 3 is separated from the first slide rail 32 at the second guide rail 37 by virtue of the action. Of course, the carrier seat 38 will be in the state shown in FIG. 8 after it is raised to the highest position, so as to complete the circulation operation of the evacuation ladder 3.

With the disclosure of fig. 1 to 11, it can be understood that the present invention relates to a refuge ladder for conveying a sickbed, which is installed in a building, wherein a floor rail for guiding the sickbed to an entrance of the refuge ladder is provided on a floor of the building, a preset body is provided in the refuge ladder, and a preset loading space is provided in the top of the preset body, comprising: a gravity speed reducer provided with a speed reducer and a transmission shaft extending from the speed reducer, wherein the transmission shaft is further arranged in a driving wheel in a penetrating way; the upper end and the lower end of the two first circulating chains are respectively engaged with a first gear, and the first gear is engaged and linked with the driving wheel; the upper end and the lower end of the interior of the two second circulating chains are respectively engaged with a second gear which is linked with the driving wheel through a transmission chain; two first guide rails and two second guide rails are respectively arranged at the upper end and the lower end between the first circulating chain and the second circulating chain; a bearing surface is arranged above the plurality of load seats, two guide grooves for guiding and positioning four trundles of the sickbed are arranged on the bearing surface, two sides of each of the plurality of load seats are provided with a shaft lever, a roller and a buckling claw, the two shaft levers penetrate and are fixed in a preset buckling hole of the second circulating chain, and the two roller wheels of the load seats are abutted against the two first guide rails so that the two buckling claws are hooked in a hanging rod of the two first circulating chains for positioning; the two rollers of the carrying seat are abutted against the second guide rail so that the two buckling claws are separated from the hanging rod of the first circulating chain, and the two rollers are overturned and lifted along with the two second circulating chains through the two shaft levers, so that the floor guide rail for leading the sickbed to the entrance of the refuge ladder is arranged on the floor of the building, and the carrying surface of the carrying seat of the refuge ladder is provided with two guide grooves for guiding and positioning the four casters of the sickbed, so that the sickbed is quickly pushed into the refuge ladder for escaping. The refuge ladder disclosed by the utility model has excellent practicability when being applied to the fields of hospitals or health centers, so that patent application is provided to seek the protection of patent rights.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The refuge ladder for conveying sickbeds is arranged in a building and is characterized in that: the first floor of the building is provided with a first floor guide rail for leading a sickbed to an entrance of the refuge ladder, the refuge ladder is internally provided with a preset body, the top of the preset body is internally provided with a preset loading space, and the refuge ladder conveyed by the sickbed comprises:

2. A shelter ladder for hospital bed delivery as claimed in claim 1, wherein: the upper part of the plurality of load seats is provided with a load bearing surface, and the load bearing surface is provided with two guide grooves for the four casters of the sickbed to form guiding and positioning.

3. A shelter ladder for hospital bed delivery as claimed in claim 1, wherein: the first guide rail also comprises an inclined rising part, a bending part, an inclined falling part and a joint abutting end; the second guide rail also comprises a separation abutting end and an arc-shaped part.

4. A shelter ladder for hospital bed delivery as claimed in claim 1, wherein: the floor guide rails are arc-shaped rails which are symmetrical and have wide outer parts and narrow inner parts.

5. A shelter ladder for hospital bed delivery as claimed in claim 1, wherein: the building is also provided with a slope plate at the exit of the refuge ladder on the first floor.

6. The refuge ladder for conveying sickbeds is arranged in a building and is characterized in that: the first floor of the building is provided with a first floor guide rail for leading a sickbed to an entrance of the refuge ladder, the refuge ladder is internally provided with a preset body, the top of the preset body is internally provided with a preset loading space, and the refuge ladder conveyed by the sickbed comprises:

two first slide rails arranged on two opposite sides of the preset body;

7. A shelter ladder for hospital bed transport as claimed in claim 6, wherein: the upper part of the plurality of load seats is provided with a load bearing surface, and the load bearing surface is provided with two limit guide rails for the four casters of the sickbed to form guiding and positioning.

8. A shelter ladder for hospital bed transport as claimed in claim 6, wherein: the first guide rail also comprises an inclined rising part, a bending part, an inclined falling part and a joint abutting end; the second guide rail also comprises a separation abutting end and an arc-shaped part.

9. A shelter ladder for hospital bed transport as claimed in claim 6, wherein: the floor guide rails are arc-shaped rails which are symmetrical and have wide outer parts and narrow inner parts.

10. A shelter ladder for hospital bed transport as claimed in claim 6, wherein: the reduction gear set comprises a small fluted disc meshed with the driven wheel on two sides of the linkage gear set, and one side of the small fluted disc opposite to the driven wheel is connected with a big fluted disc penetrating through the inside of the circulating chain.