CN219362930U - Automatic lifter device for building - Google Patents

Abstract

The utility model relates to the technical field of elevators, in particular to an automatic building elevator device, which has the advantages that compared with a single-box elevator, the safety is not reduced, the elevator device can load and unload simultaneously, the waiting time is reduced, and the working efficiency is high; the system comprises a main winding machine, a steel cable and a first cargo box, wherein the main winding machine is arranged at the top of a lifting channel of a building, a driving roller is arranged on the main winding machine, and the steel cable is fixedly connected with the first cargo box; still include lower running roller, second goods railway carriage or compartment, second steel cable and swing joint spare, the bottom at the elevating channel of building is installed to lower running roller, the steel cable is annular, the upper end suit of steel cable is on the drive roller of main rolling machine, the lower extreme suit of steel cable is on lower running roller, the second goods railway carriage or compartment is located the offside of first goods railway carriage or compartment, the second goods railway carriage or compartment is connected with the steel cable through swing joint spare, the second rolling machine is installed on the second goods railway carriage or compartment, the lower extreme roll-up of second steel cable is on the second rolling machine, the upper end and the steel cable of second steel cable are connected.

Description

Automatic lifter device for building

Technical Field

The utility model relates to the technical field of elevators, in particular to an automatic elevator device for a building.

Background

The elevator is a hoisting machine for vertically transporting people or objects, and is widely applied to industries such as building decoration and the like. In the prior art, various elevators are proposed, and a conventional elevator is generally provided with a box for delivering goods and a counterweight, wherein the box is connected with the counterweight through a steel cable, and the weights of the box and the goods are balanced through the counterweight, so that the power equipment can smoothly lift the box and the goods to a specified floor and height by outputting less power, for example, the safety elevator proposed by the Chinese patent with patent number ZL 202021848693.7.

Because there is only one delivery box in the conventional single-box lifter, when the delivery box is loaded, the staff at the receiving floor needs to wait for a long time, and the working efficiency is low, so that a double-box lifter is required to be provided, and the double boxes are loaded and unloaded alternately and are counter weights mutually, so that the working efficiency and the practicability are improved.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the building automatic lifter device which has no reduction in safety, can load and unload simultaneously, reduces waiting time and has high working efficiency compared with a single-box lifter.

The utility model relates to an automatic lifter device for a building, which comprises a main winding machine, a steel cable and a first cargo box, wherein the main winding machine is arranged at the top of a lifting channel of the building, a driving roller is arranged on the main winding machine, and the steel cable is fixedly connected with the first cargo box; the lower roller is installed at the bottom of a lifting channel of a building, the steel cable is annular, the upper end of the steel cable is sleeved on a driving roller of the main winding machine, the lower end of the steel cable is sleeved on the lower roller, the second cargo box is positioned at the opposite side of the first cargo box, the second cargo box is connected with the steel cable through the movable connecting piece, the second winding machine is installed on the second cargo box, the lower end of the second steel cable is wound on the second winding machine, and the upper end of the second steel cable is connected with the steel cable; the first goods railway carriage or compartment and second goods railway carriage or compartment are connected in annular steel cable's both sides, first goods railway carriage or compartment and second goods railway carriage or compartment constitute double-box system, first goods railway carriage or compartment and second goods railway carriage or compartment are the counter weight each other, when needing to go up and down the goods, main roll-up machine drives the drive roller and rotates, the drive roller drives the steel cable and rotates, make first goods railway carriage or compartment rise and second goods railway carriage or compartment decline, when first goods railway carriage or compartment reaches the loading floor, the swing joint piece on the second goods railway carriage or compartment is opened, the second roll-up machine roll-up or release second steel cable, make the second goods railway carriage or compartment reach the unloading floor, reach the back of unloading floor, swing joint on the second goods railway carriage or compartment and steel cable locking connection again, at this moment, first goods railway carriage or compartment and second goods railway carriage or compartment can be simultaneously relatively gone up and down, and first goods railway carriage or compartment and second goods railway carriage or compartment reach simultaneously and the unloading floor, realize simultaneously going up goods and unloading, compare single case lift, the security does not reduce, latency, work efficiency has been improved.

Preferably, the movable connecting piece comprises a square, a connecting column, two wedges, two inclined sliding blocks, two sliding strips and two electromagnets, wherein the square is arranged on the second cargo compartment through the connecting column, a through hole is formed in the middle of the square, a steel cable penetrates through the through hole of the square, two wedges and sliding grooves are formed in the inner walls opposite to the through hole of the square, wedge faces of the two wedges face towards the lower inner side of the through hole of the square, the sliding strips are respectively arranged on the two inclined sliding blocks, the magnetic blocks are respectively arranged at the bottoms of the two inclined sliding blocks, the two sliding strips are respectively in sliding connection with the two sliding grooves, guide slopes are respectively arranged on the two inclined sliding blocks and face the upper side of the outer side of the through hole of the square, the guide slopes of the two inclined sliding blocks are respectively in sliding fit with the wedge faces of the two wedges, the two electromagnets are arranged on the lower end faces of the square, and the two electromagnets are respectively located below the two inclined sliding blocks; the weight of second goods railway carriage or compartment is through spliced pole and square effect on two oblique sliders, the inboard and the steel cable frictional contact of two oblique sliders, under the weight effect of second goods railway carriage or compartment, square and two oblique sliders are the dislocation from top to bottom, under the guide effect of the wedge face of two voussoirs and the guide slope of two oblique sliders, make two oblique sliders inwards extrude, thereby make two oblique sliders press from both sides tightly on the steel cable, thereby make the second goods railway carriage or compartment can go up and down under the drive of steel cable, when the relative height of first goods railway carriage or compartment and second goods railway carriage or compartment needs to be adjusted, the second coiler rolls up a section second steel cable, make the square improve a little section height, make two voussoirs and two oblique sliders become flexible, two electro-magnet circular telegram produce magnetic force, two oblique sliders are adsorbed down by two electro-magnet, make two oblique sliders break away from with the steel cable, at this moment the second goods railway carriage or compartment can be at the traction lower lift of second coiler and second steel cable, thereby make first goods railway carriage or compartment and second goods railway carriage or compartment arrive appointed floor respectively, when the relative height of first goods railway carriage or compartment and second goods railway carriage or compartment, the second goods railway carriage or compartment is high, two oblique aircraft or compartment and two oblique sliders change the magnetic force is reached, two oblique slider, and two wire rope magnetic force is down, thereby the second goods railway carriage or compartment is down, and two oblique goods railway carriage or compartment is down, and the slider is down, and vice down.

Preferably, the device further comprises a steel cable connector, wherein one end of the steel cable connector is connected with the steel cable, and the other end of the steel cable connector is connected with the upper end of the second steel cable; the upper end of the second steel cable is connected with the steel cable through a steel cable connector, so that the installation is convenient.

Preferably, the main winding machine further comprises a first guide groove and a second guide groove, wherein the first guide groove and the second guide groove are arranged on the driving roller of the main winding machine, the first guide groove is used for guiding the second steel cable, and the second guide groove is used for guiding the steel cable; the first guide groove and the second guide groove guide the second steel cable and the steel cable, so that the second steel cable and the steel cable can be stably driven, the dislocation of the second steel cable and the steel cable can be avoided, and the lifting stability of the first cargo box and the second cargo box is improved.

Preferably, the elevator further comprises a guide rail and a guide part, wherein the guide rail is arranged in a lifting channel of the building, the guide rail is positioned between a first cargo box and a second cargo box, and the first cargo box and the second cargo box are both in sliding connection with the guide rail through the guide part; first goods railway carriage or compartment and second goods railway carriage or compartment pass through guide assembly and guide rail sliding connection for first goods railway carriage or compartment and second goods railway carriage or compartment can be along the guide rail lift, avoid first goods railway carriage or compartment and second goods railway carriage or compartment to rock, improve stability.

Preferably, the guide member includes a wheel frame mounted on the first cargo compartment and the second cargo compartment, and a plurality of rail wheels rotatably mounted on the wheel frame, the plurality of rail wheels being in rolling contact with front and rear end surfaces of the guide rail, respectively; the plurality of rail wheels are respectively in rolling contact with the front end face and the rear end face of the guide rail, so that when the first cargo box and the second cargo box are lifted, the wheel frame drives the plurality of rail wheels to roll up and down along the front end face and the rear end face of the guide rail, and the wheel frame and the plurality of rail wheels vertically guide the first cargo box and the second cargo box, so that the structure is simple, and the stability is good.

Preferably, the first and second cargo compartments are each provided with a front door and a rear door, the front doors of the first and second cargo compartments facing the interior of the building, the rear doors of the first and second cargo compartments facing the exterior of the building; the front door and the rear door of the first cargo compartment and the second cargo compartment enable staff to load cargo in the first cargo compartment and the second cargo compartment outside the building, and unload cargo in the building, so that loading and unloading are facilitated, and work efficiency is improved.

Compared with the prior art, the utility model has the beneficial effects that: the first goods railway carriage or compartment and second goods railway carriage or compartment are connected in annular steel cable's both sides, first goods railway carriage or compartment and second goods railway carriage or compartment constitute double-box system, first goods railway carriage or compartment and second goods railway carriage or compartment are the counter weight each other, when needing to go up and down the goods, main roll-up machine drives the drive roller and rotates, the drive roller drives the steel cable and rotates, make first goods railway carriage or compartment rise and second goods railway carriage or compartment decline, when first goods railway carriage or compartment reaches the loading floor, the swing joint piece on the second goods railway carriage or compartment is opened, the second roll-up machine roll-up or release second steel cable, make the second goods railway carriage or compartment reach the unloading floor, reach the back of unloading floor, swing joint on the second goods railway carriage or compartment and steel cable locking connection again, at this moment, first goods railway carriage or compartment and second goods railway carriage or compartment can be simultaneously relatively gone up and down, and first goods railway carriage or compartment and second goods railway carriage or compartment reach simultaneously and the unloading floor, realize simultaneously going up goods and unloading, compare single case lift, the security does not reduce, latency, work efficiency has been improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of an axially measured structure of the present utility model;

FIG. 3 is a schematic diagram of the front view of the present utility model;

FIG. 4 is a schematic illustration of the construction of the main retractor, cable, second cargo box and guide members;

FIG. 5 is an exploded enlarged schematic view of the structure of the guide member and the like;

the reference numerals in the drawings: 1. a main coiler; 2. a wire rope; 3. a first cargo compartment; 4. a lower roller; 5. a second cargo compartment; 6. a second coiler; 7. a second wire rope; 8. a square block; 9. a connecting column; 10. wedge blocks; 11. an inclined slide block; 12. a slide bar; 13. an electromagnet; 14. a wire rope connector; 15. a first guide groove; 16. a second guide groove; 17. a guide rail; 18. a wheel carrier; 19. and a rail wheel.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

As shown in fig. 1 to 5, an automatic building lifter device comprises a main coiler 1, a steel cable 2 and a first cargo box 3, wherein the main coiler 1 is arranged at the top of a lifting channel of a building, a driving roller is arranged on the main coiler 1, and the steel cable 2 is fixedly connected with the first cargo box 3; the system further comprises a lower roller 4, a second cargo box 5, a second rolling machine 6, a second steel cable 7 and a movable connecting piece, wherein the lower roller 4 is arranged at the bottom of a lifting channel of a building, the steel cable 2 is annular, the upper end of the steel cable 2 is sleeved on a driving roller of the main rolling machine 1, the lower end of the steel cable 2 is sleeved on the lower roller 4, the second cargo box 5 is positioned at the opposite side of the first cargo box 3, the second cargo box 5 is connected with the steel cable 2 through the movable connecting piece, the second rolling machine 6 is arranged on the second cargo box 5, the lower end of the second steel cable 7 is rolled on the second rolling machine 6, and the upper end of the second steel cable 7 is connected with the steel cable 2; the movable connecting piece comprises a square 8, a connecting column 9, two wedges 10, two inclined sliding blocks 11, two sliding strips 12 and two electromagnets 13, wherein the square 8 is arranged on the second cargo compartment 5 through the connecting column 9, a through hole is formed in the middle of the square 8, a steel cable 2 passes through the through hole of the square 8, two wedges 10 and sliding grooves are formed in the inner walls opposite to the through hole of the square 8, wedge faces of the two wedges 10 face to the lower part of the inner side of the through hole of the square 8, the sliding strips 12 are arranged on the two inclined sliding blocks 11, magnetic blocks are arranged at the bottoms of the two inclined sliding blocks 11, the two sliding strips 12 are respectively connected with the two sliding grooves in a sliding manner, guide slopes are arranged on the two inclined sliding blocks 11 and face to the upper part of the outer side of the through hole of the square 8, the guide slopes of the two inclined sliding blocks 11 are respectively in sliding fit with the wedge faces of the two wedges 10, the two electromagnets 13 are arranged on the lower end face of the square 8, and the two electromagnets 13 are respectively located below the two inclined sliding blocks 11; the first cargo compartment 3 and the second cargo compartment 5 are each provided with a front door and a rear door, the front doors of the first cargo compartment 3 and the second cargo compartment 5 facing the interior of the building, and the rear doors of the first cargo compartment 3 and the second cargo compartment 5 facing the outside of the building.

The first goods box 3 and the second goods box 5 are connected at two sides of the annular steel cable 2, the first goods box 3 and the second goods box 5 form a double-box system, the first goods box 3 and the second goods box 5 are mutually balanced, when goods need to be lifted, the main winding machine 1 drives the driving roller to rotate, the driving roller drives the steel cable 2 to rotate, the first goods box 3 lifts while the second goods box 5 descends, when the relative heights of the first goods box 3 and the second goods box 5 need to be adjusted, after the first goods box 3 reaches a goods loading floor, the second winding machine 6 winds a section of the second steel cable 7, the square 8 is lifted by a small section of height, the two wedges 10 and the two oblique sliders 11 loosen, the two electromagnets 13 are electrified to generate magnetic force, the two oblique sliders 11 are downwards absorbed by the two electromagnets 13, the two oblique sliders 11 are separated from the steel cable 2, the second winding machine 6 winds or releases the second steel cable 7, the second goods box 5 reaches the goods floor, after reaching the unloading floor, the two electromagnets 13 change the magnetic pole direction, push the two inclined slide blocks 11 upwards, so that the two inclined slide blocks 11 clamp the steel cable 2, the second coiler 6 loosens one end of the second steel cable 7, the weight of the second cargo box 5 acts on the two inclined slide blocks 11 through the connecting column 9 and the square block 8, the inner sides of the two inclined slide blocks 11 are in friction contact with the steel cable 2, the square block 8 and the two inclined slide blocks 11 move up and down, under the guiding action of the wedge-shaped surfaces of the two wedge blocks 10 and the guiding slopes of the two inclined slide blocks 11, the two inclined slide blocks 11 are pressed inwards, so that the two inclined slide blocks 11 are clamped on the steel cable 2, so that the second cargo box 5 can be lifted under the driving of the steel cable 2, at the moment, the first cargo box 3 and the second cargo box 5 can be lifted relatively, and the first cargo box 3 and the second cargo box 5 reach the loading floor and the unloading floor simultaneously, the staff is loaded to the first cargo box 3 and the second cargo box 5 in the outside of building, realizes loading simultaneously and unloading simultaneously, compares single case lift, and the security does not reduce, has reduced latency, has improved work efficiency.

Example 2

As shown in fig. 1 to 4, an automatic building lifter device comprises a main coiler 1, a steel cable 2 and a first cargo box 3, wherein the main coiler 1 is arranged at the top of a lifting channel of a building, a driving roller is arranged on the main coiler 1, and the steel cable 2 is fixedly connected with the first cargo box 3; the system further comprises a lower roller 4, a second cargo box 5, a second rolling machine 6, a second steel cable 7 and a movable connecting piece, wherein the lower roller 4 is arranged at the bottom of a lifting channel of a building, the steel cable 2 is annular, the upper end of the steel cable 2 is sleeved on a driving roller of the main rolling machine 1, the lower end of the steel cable 2 is sleeved on the lower roller 4, the second cargo box 5 is positioned at the opposite side of the first cargo box 3, the second cargo box 5 is connected with the steel cable 2 through the movable connecting piece, the second rolling machine 6 is arranged on the second cargo box 5, the lower end of the second steel cable 7 is rolled on the second rolling machine 6, and the upper end of the second steel cable 7 is connected with the steel cable 2; the device further comprises a steel cable connector 14, wherein one end of the steel cable connector 14 is connected with the steel cable 2, and the other end of the steel cable connector 14 is connected with the upper end of the second steel cable 7; the main winding machine 1 is provided with a driving roller, and also comprises a first guiding groove 15 and a second guiding groove 16, wherein the driving roller of the main winding machine 1 is provided with the first guiding groove 15 and the second guiding groove 16, the first guiding groove 15 is used for guiding the second steel cable 7, and the second guiding groove 16 is used for guiding the steel cable 2; the elevator also comprises a guide rail 17 and a guide part, wherein the guide rail 17 is arranged in a lifting channel of a building, the guide rail 17 is positioned between the first cargo box 3 and the second cargo box 5, and the first cargo box 3 and the second cargo box 5 are both in sliding connection with the guide rail 17 through the guide part; the guide member includes a wheel frame 18 and a plurality of rail wheels 19, the wheel frame 18 is mounted on the first cargo box 3 and the second cargo box 5, the plurality of rail wheels 19 are rotatably mounted on the wheel frame 18, and the plurality of rail wheels 19 are respectively in rolling contact with front and rear end surfaces of the guide rail 17.

The upper end of second steel cable 7 is connected with steel cable 2 through steel cable connector 14, easy to assemble, first guide way 15 and second guide way 16 direction second steel cable 7 and steel cable 2, make second steel cable 7 and steel cable 2 can stable drive, and avoid second steel cable 7 and steel cable 2 to float dislocation, improve the stability of lifting of first goods railway carriage or compartment 3 and second goods railway carriage or compartment 5, first goods railway carriage or compartment 3 and second goods railway carriage or compartment 5 pass through guiding assembly and guide rail 17 sliding connection, make first goods railway carriage or compartment 3 and second goods railway carriage or compartment 5 can lift along guide rail 17, avoid first goods railway carriage or compartment 3 and second goods railway carriage or compartment 5 to rock, a plurality of rail wheels 19 respectively with the front and back terminal surface rolling contact of guide rail 17, when making first goods railway carriage or compartment 3 and second goods railway carriage or compartment 5 lift, wheel carrier 18 drives a plurality of rail wheels 19 and rolls from top to bottom along the front and back terminal surface of guide rail 17, make wheel carrier 18 and a plurality of rail wheels 19 to first goods railway carriage or compartment 3 and second goods railway carriage or compartment 5 vertical direction, improve the stability of equipment.

As shown in fig. 1 to 5, in the automatic lifter device for building according to the present utility model, when the automatic lifter device works, firstly, when lifting cargoes, the main coiler 1 drives the driving roller to rotate, the driving roller drives the steel cable 2 to rotate, so that the first cargo box 3 ascends while the second cargo box 5 descends, then when the first cargo box 3 reaches the loading floor, the second coiler 6 coils a section of the second steel cable 7, so that the square 8 is raised by a small section of height, the two wedge blocks 10 and the two inclined sliding blocks 11 are loosened, the two electromagnets 13 are electrified to generate magnetic force, the two inclined sliding blocks 11 are absorbed downwards by the two electromagnets 13, so that the two inclined sliding blocks 11 are separated from the steel cable 2, then the second coiler 6 coils or releases the second steel cable 7, so that the second cargo box 5 reaches the unloading floor, after the unloading floor is reached, the two inclined sliding blocks 11 are reversely pushed up by the magnetic poles of the two electromagnets 13, the second coiler 6 releases a section of the second steel cable 7, so that the two inclined sliding blocks 11 are locked and connected again, and finally, the first cargo box 3 and the second cargo box 5 can be lifted and unloaded simultaneously, and the cargo box can be lifted and unloaded simultaneously.

The main functions realized by the utility model are as follows:

1. compared with a single-box lifter, the safety is not reduced, the lifting device can load and unload simultaneously, the waiting time is reduced, and the working efficiency is high;

2. the double-box system is mutually a counterweight, and the lifting is smooth and stable.

The building automatic lifter device has the advantages that the installation mode, the connection mode or the setting mode are all common mechanical modes, and the building automatic lifter device can be implemented as long as the beneficial effects can be achieved; the main winding machine 1, the steel cable 2, the first cargo box 3, the lower roller 4, the second cargo box 5, the second winding machine 6, the second steel cable 7, the electromagnet 13 and the rail wheel 19 of the building automatic lifter device are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached using instruction without creative labor of the person skilled in the art.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (7)

1. An automatic lifter device for a building comprises a main winding machine (1), a steel cable (2) and a first cargo box (3), wherein the main winding machine (1) is arranged at the top of a lifting channel of the building, a driving roller is arranged on the main winding machine (1), and the steel cable (2) is fixedly connected with the first cargo box (3); the novel lifting device is characterized by further comprising a lower roller (4), a second cargo box (5), a second winding machine (6), a second steel cable (7) and a movable connecting piece, wherein the lower roller (4) is arranged at the bottom of a lifting channel of a building, the steel cable (2) is annular, the upper end of the steel cable (2) is sleeved on a driving roller of the main winding machine (1), the lower end of the steel cable (2) is sleeved on the lower roller (4), the second cargo box (5) is positioned on the opposite side of the first cargo box (3), the second cargo box (5) is connected with the steel cable (2) through the movable connecting piece, the second winding machine (6) is arranged on the second cargo box (5), and the lower end of the second steel cable (7) is wound on the second winding machine (6), and the upper end of the second steel cable (7) is connected with the steel cable (2).

2. The building automation elevator device according to claim 1, wherein the movable connecting piece comprises a square block (8), a connecting column (9), two wedges (10), two inclined sliding blocks (11), two sliding strips (12) and two electromagnets (13), the square block (8) is installed on the second cargo compartment (5) through the connecting column (9), a through hole is formed in the middle of the square block (8), a steel cable (2) penetrates through the through hole of the square block (8), two wedges (10) and sliding grooves are formed in the inner wall, opposite to the through hole, of the square block (8), wedge faces of the two wedges (10) face to the inner lower side of the through hole of the square block (8), sliding strips (12) are arranged on the two inclined sliding blocks (11), the bottoms of the two inclined sliding blocks (11) are respectively connected with the two sliding grooves in a sliding mode, guide slopes are respectively arranged on the two inclined sliding blocks (11), the guide slopes face to the upper side of the through hole of the square block (8), the two inclined sliding blocks (11) face to the inner side of the through hole of the square block (8), the two inclined sliding blocks (11) face to the two wedge faces of the two inclined sliding blocks (13) are respectively arranged on the two inclined sliding blocks (11).

3. A building automation elevator arrangement according to claim 1, further comprising a cable connector (14), one end of the cable connector (14) being connected to the cable (2) and the other end of the cable connector (14) being connected to the upper end of the second cable (7).

4. A building automation elevator arrangement according to claim 1, further comprising a first guide groove (15) and a second guide groove (16), the first guide groove (15) and the second guide groove (16) being provided on the drive roller of the main retractor (1), the first guide groove (15) being for guiding the second wire rope (7) and the second guide groove (16) being for guiding the wire rope (2).

5. A building automation elevator arrangement according to claim 1, further comprising a guide rail (17) and a guide member, the guide rail (17) being mounted in the elevator shaft of the building, the guide rail (17) being located between the first cargo compartment (3) and the second cargo compartment (5), the first cargo compartment (3) and the second cargo compartment (5) being each slidably connected to the guide rail (17) by means of the guide member.

6. A building automation elevator apparatus according to claim 5, wherein the guide member comprises a wheel frame (18) and a plurality of rail wheels (19), the wheel frame (18) being mounted on the first cargo bed (3) and the second cargo bed (5), the plurality of rail wheels (19) being rotatably mounted on the wheel frame (18), the plurality of rail wheels (19) being in rolling contact with the front and rear end surfaces of the guide rail (17), respectively.

7. A building automation elevator arrangement according to claim 1, characterized in that the first (3) and the second (5) cargo compartments are each provided with a front door and a rear door, the front doors of the first (3) and the second (5) cargo compartments being directed towards the interior of the building and the rear doors of the first (3) and the second (5) cargo compartments being directed towards the outside of the building.