CN110980478B

CN110980478B - Construction lifting system

Info

Publication number: CN110980478B
Application number: CN201911389743.1A
Authority: CN
Inventors: 李湖兵; 龚吉祥; 吴劲松; 杨海燕; 张晓梅; 张鑫亭
Original assignee: Jiangsu Alpha Lift Manufacturing Co ltd
Current assignee: Jiangsu Alpha Lift Manufacturing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-04-20
Anticipated expiration: 2039-12-30
Also published as: CN110980478A

Abstract

The invention relates to a construction lifting system, which comprises four side walls and a lift car which is arranged in the side walls and can lift up and down, wherein the lift car is driven by a steel wire rope to lift, the tail end of the steel wire rope is also connected with a balance weight, one side wall of the four side walls is opposite to the indoor, a plurality of layer door openings which correspond to each floor one by one are formed in the side wall, protective doors are arranged on the outer sides of the layer door openings, the protective doors are electrically interlocked, and a hoistway door front side plate is also arranged on the side wall, which is positioned at the lower side of the door opening; a construction platform assembly; a return rope wheel frame assembly; a machine room assembly; a chain storage assembly. The invention has the advantages that: the construction lifting system provided by the invention changes the fixing mode and the mounting position of the construction platform assembly, the rope return wheel frame assembly, the machine room assembly and the chain storage assembly, so that the construction platform assembly, the rope return wheel frame assembly, the machine room assembly and the chain storage assembly are convenient to mount, and the whole construction is convenient.

Description

Construction lifting system

Technical Field

The invention relates to a construction elevator, in particular to a construction lifting system.

Background

The construction elevator is also called as a construction elevator for buildings, and can also be used as an outdoor elevator for lifting a cage in a construction site. The construction elevator is mainly used in various buildings of high-rise and super-high-rise in cities, because the height of the buildings is very difficult to finish operation by using a derrick and a portal frame, the construction elevator is a manned cargo-carrying construction machine frequently used in the buildings and is mainly used for the construction of buildings such as internal and external decoration of the high-rise buildings, bridges, chimneys and the like. Due to the unique box body structure, constructors can sit comfortably and safely. The construction elevator is usually matched with a tower crane to be used on a construction site.

The simple construction elevator consists of a lift car, a driving mechanism, a standard knot, an attached wall, a chassis, a fence, an electrical system and the like, is a manned cargo-carrying construction machine frequently used in buildings, is comfortable and safe to ride due to the unique box body structure, is usually matched with a tower crane to use on a construction site, generally has the carrying capacity of 0.3-3.6 tons, and has the running speed of 1-96M/min and the like. Construction elevators produced in China are more and more mature and gradually move to the international world. At present, there is certain defect at the in-process of construction elevator installation:

1. the top end of the construction elevator is provided with a rope returning wheel frame matched with the lifting of the lift car and parts such as a rope returning wheel arranged on the rope returning wheel frame, and the parts such as the rope returning wheel frame and the rope returning wheel are arranged in the installation process. The traditional platform erection mode is as follows: the platform is required to be dismantled after the installation of the parts such as the rope returning wheel frame and the rope returning wheel is finished, namely the platform cannot be directly integrated with the attached wall, and subsequent erection is required. The above-mentioned erection mode needs to be drilled on the two side walls, which is very troublesome, and during construction, the wall with one side drilled faces the indoor, and inevitably, the other side wall is exposed to the outdoor, so the hole on the side wall needs to be repaired, otherwise, external rainwater and sundries can enter the whole construction elevator from the through hole of the side wall, and the holes on the two side walls can be drilled along with the phenomenon of wind channeling, which causes the bad phenomena of the swinging of the steel wire rope and the like, and influences the smooth use of the car.

2. The top end of the construction elevator is provided with a rope returning wheel frame matched with the lifting of the lift car and parts such as a rope returning wheel arranged on the rope returning wheel frame, and the parts such as the rope returning wheel frame and the rope returning wheel are arranged in the installation process. The traditional installation mode of the rope returning wheel carrier is as follows: the two mutually opposite attaching walls are respectively provided with a hole for installing the return rope wheel frame, then the return rope wheel frame penetrates through the two holes, so that the return rope wheel frame spans the two attaching walls, and the return rope wheel frame and the attaching walls are fixed by using auxiliary pieces such as bolts and the like, thereby completing the installation of the return rope wheel frame. The installation method needs to drill holes on two side walls, which is very troublesome, in the construction process, the wall with one side drilled is required to face the indoor, but the other side wall is exposed to the outdoor, so the hole on the side wall needs to be repaired, otherwise, external rainwater and sundries can enter the whole construction elevator from the through hole of the side wall, and the holes on the two side walls can be opened along with the phenomenon of wind channeling, which causes the bad phenomena of the steel wire rope, such as shaking and the like, and influences the smooth use of the car.

3. The machine room assembly is usually arranged inside an attached wall of the car and below the car, namely at the bottom end of the attached wall, and the machine room assembly is distributed at such a position that the machine room is very inconvenient to install.

4. In the process of up-down lifting of the car, the matching of the steel wire rope and the traction machine is usually adopted, and in order to compensate the weight of the steel wire rope, the elevator runs stably, a compensation chain is additionally arranged, so that the weight requirement of the steel wire rope is met. And the mode of traditional compensation chain storage sets up a storage cylinder in attaching the bottom in the wall and comes to save the compensation chain, however, such position distributes, make very inconvenient when carrying out the storage cylinder installation, at first, it is located subaerial usually to attach the wall bottom, this part position four sides all are the confined wall of attaching, external light can't shine, consequently the shade of comparison, constructor need get into and attach the wall bottom and install, very inconvenient, and, there is not the vent on attaching the wall, be similar to semi-enclosed space, constructor is not suitable for long-term construction.

Disclosure of Invention

The invention aims to provide a construction lifting system convenient for construction.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a construction operating system which innovation point lies in: comprises that

The four-side wall is arranged in the wall and can be lifted up and down, the four-side wall is matched with each other to form a space for lifting the car up and down, the inner wall of the wall is also provided with a lifting guide rail matched with the car, the car is also provided with a lifting slide block matched with the lifting guide rail, the car is driven by a steel wire rope to lift, the tail end of the steel wire rope is also connected with a balance weight, one of the four-side wall is opposite to the room, the wall is provided with a plurality of layer door holes corresponding to each floor one by one, the outer side of each layer door hole is provided with a protective door, the protective door is interlocked by electricity, the top end of the wall is also provided with a first door hole, the lower side of the door hole on the wall is also provided with a hoistway door front side plate extending horizontally towards the room, the bottom position of the wall opposite to the wall provided with the layer door holes is provided with a hoistway door extending horizontally outwards, meanwhile, a second door opening is formed in the side wall above the rear side plate of the hall door;

the construction platform assembly comprises a door opening frame which is arranged in the door opening and is jointed and connected with the inner wall of the door opening; the platform assembly is connected with the door opening frame and comprises a pair of supporting steel plates supported on the door opening frame, one sides of the pair of supporting steel plates are connected with the door opening frame and the hoistway door front side plate through expansion bolts, the other sides of the pair of supporting steel plates are connected with the inner wall of the attaching wall on the side opposite to the attaching wall with the door opening through expansion bolts, and a platform plate is supported on the two supporting steel plates; the auxiliary connecting assembly is used for connecting the supporting steel plates and the door opening frame and comprises a pair of auxiliary steel wire ropes which are correspondingly connected with the two supporting steel plates one by one, one side of each auxiliary steel wire rope is connected with one side of each supporting steel plate, which is far away from the door opening frame, and the other side of each auxiliary steel wire rope is connected with the top end of the door opening frame, so that the auxiliary steel wire ropes, the door opening frame and the supporting steel plates are distributed in a triangular shape;

the rope returning wheel frame assembly comprises a horizontally arranged rope returning wheel frame, one side of the rope returning wheel frame extends into the top end of a door opening of an attached wall, is connected and fixed with the inner wall of the attached wall on the side opposite to the attached wall with the door opening through the matching of a side main supporting plate and an expansion bolt, and the other side of the rope returning wheel frame extends out of the door opening and is fixed on a front side plate of a hall door through a vertically arranged supporting column; the first rope returning wheel assembly is arranged on the rope returning wheel frame and comprises a plurality of rope returning wheels arranged on one side of the rope returning wheel frame, and rope blocking plates are also arranged on the rope returning wheel frame at the positions of the rope returning wheels; the rope head assembly is arranged on the rope return wheel frame and comprises a car rope head plate arranged on the rope return wheel frame and a counterweight rope head plate arranged beside the rope return wheel, and a plurality of rope wheels are arranged on the car rope head plate and the counterweight rope head plate;

the machine room assembly comprises a machine room support, wherein the machine room support comprises a first support which is horizontally arranged, the first support is formed by jointly assembling four C-shaped channel steels which are distributed in a rectangular shape, and the bottom ends of four edges of the first support are supported on a rear side plate of the hoistway door through a vertically arranged supporting leg; the second rope returning wheel assembly is arranged on the first support and comprises a first rope returning wheel, a second rope returning wheel and a third rope returning wheel, the first rope returning wheel and the second rope returning wheel are positioned on the same horizontal plane, the second rope returning wheel and the third rope returning wheel are positioned on the same vertical plane, the third rope returning wheel and the second rope returning wheel are sequentially distributed from top to bottom, and the end parts of the third rope returning wheel and the second rope returning wheel are positioned on the inner side of a door opening on an attached wall; a driving assembly mounted on the first support, the driving assembly including a traction machine;

the chain storage assembly comprises a chain storage support arranged below the lift car, the chain storage support comprises a pair of turntable frames arranged on two sides of the bottom end of the lift car, two sides of each turntable frame are connected with the bottom end of the lift car through turntable car bottom connecting plates, the middle positions of the two turntable frames are fixedly connected through a reinforcing connecting plate, and the top end of the reinforcing connecting plate is connected with the bottom end of the lift car through a buffer plate; the pair of rotary drum assemblies are installed on the rotary disc frames and located on two sides of the reinforcing connecting plate, each rotary drum assembly comprises a pair of rotary discs installed on the inner sides of the two rotary disc frames respectively, the two rotary discs are connected through a rotary disc shaft, a plurality of storage chain shafts distributed in a cylindrical mode are further arranged on the outer side of the circumference of each rotary disc shaft, each storage chain shaft is matched with the rotary drum formed by accommodating and compensating chains to be wound together, and a rope blocking plate is further arranged on each rotary disc.

Furthermore, the connection between the supporting steel plate, the door opening frame and the hall door front side plate is as follows: the contact parts of the support steel plate, the door opening frame and the hall door front side plate are both connected with an L-shaped floor plate, the side end of the floor plate is fixed with the support steel plate through a bolt, and the bottom end of the floor plate is fixed with the door opening frame or the hall door front side plate through an expansion bolt;

the connection between the supporting steel plate and the attached wall is as follows: the inner side of one side of the supporting steel plate adjacent to the attached wall is also connected with a vertically arranged reinforcing plate, the platform plate is also provided with a pair of grooves for the reinforcing plate to pass through, the reinforcing plate is fixedly connected with the supporting steel plate, the upper side end of the reinforcing plate is also connected with an L-shaped reinforcing frame through a bolt, and the L-shaped reinforcing frame is fixed with the attached wall through an expansion bolt;

still be provided with the footboard between landing slab and the supporting steel board, the footboard has the several, distributes side by side along the major axis direction of supporting steel board, and the both sides of footboard support respectively on two supporting steel boards to link to each other through bolt and supporting steel board, the landing slab covers all footboards, and supports on the footboard.

Further, the rope returning wheel frame of the rope returning wheel frame assembly is connected with the attached wall as follows: the bottom end of one side of the rope return wheel frame close to the wall is provided with a side main supporting plate, the side main supporting plate is a 7-shaped plate formed by a horizontally arranged side main supporting panel and a vertically arranged side main supporting bottom plate, a plurality of side main supporting reinforcing rib plates are further arranged between the side main supporting panel and the side main supporting bottom plate, and a plurality of expansion bolts are arranged on the side main supporting bottom plate;

lightening holes are formed in the side main supporting panel, the side main supporting bottom plate and the side main supporting reinforcing rib plate;

return the rope sheave frame and include girder, front joint, both sides are connected with preceding shrouding, back shrouding respectively around the girder, and front joint is connected fixedly through preceding shrouding and girder, the girder comprises a pair of parallel arrangement's girder main part jointly, leaves the clearance of holding back rope sheave, rope sheave installation between two girder main parts, still installs a car lifting hook at the middle part position of two girder main parts, and car rope hitch plate and the both sides that return the rope sheave and be located car lifting hook respectively, front joint supports on the support column to link to each other with the support column through the bolt.

Further, the connection between the second return rope wheel component and the first support is as follows: the three return rope wheels are arranged on a second support, the second support comprises a pair of first wheel seats which are horizontally arranged, one side of each first wheel seat is fixed with the bottom end of the first support, the other side of each first wheel seat extends into the door opening, the first return rope wheel and the second return rope wheel are arranged on the first wheel seats in parallel, a vertically arranged second wheel seat is also respectively arranged on one section of each first wheel seat extending out of the first support, the third return rope wheel is arranged on the second wheel seat, and rope blocking plates corresponding to the first return rope wheel, the second return rope wheel and the third return rope wheel are respectively arranged on the first wheel seat and the second wheel seat;

the top ends of the two second wheel seats are also connected with a machine room reinforcing assembly, the machine room reinforcing assembly comprises a machine room guide plate fixed with the top ends of the two second wheel seats, the upper end of the machine room guide plate is connected with a vertically arranged I-shaped machine room strut, the top end and the two upper side ends of the machine room strut are both connected with a machine room strut joint, and the machine room strut joint is fixed with the inner wall of a door opening on the attached wall through expansion bolts;

the connection between the traction machine and the first support is as follows: the third support is arranged on the upper end face of the first support and comprises a pair of traction machine fixing plates connected with the top end of the first support, two sides of the two traction machine fixing plates are fixedly connected through a pair of sealing plates, and two sides of the bottom end of the traction machine are respectively fixed on the two traction machine fixing plates through a traction machine seat plate.

Furthermore, a reinforcing rib plate is arranged on the outer side of the turntable frame;

the chain storage shaft is installed as follows: the turntables are provided with chain storage shaft mounting through holes which correspond to the chain storage shafts one to one, two sides of each chain storage shaft respectively penetrate through the chain storage shaft mounting through holes on the two turntables, a section of each chain storage shaft extending out of the turntables is provided with an external thread structure, and the outer sides of the two turntables are respectively in threaded fit with the chain storage shafts through nuts, so that the chain storage shafts and the turntables are fixed; the chain shaft mounting through holes are distributed in a circular shape and are in one-to-one correspondence with the chain shafts, and the chain shaft mounting through holes are distributed on the turntable from inside to outside in a concentric mode.

The invention has the advantages that: the construction lifting system provided by the invention changes the fixing mode and the mounting position of the construction platform assembly, the rope return wheel frame assembly, the machine room assembly and the chain storage assembly, so that the construction platform assembly, the rope return wheel frame assembly, the machine room assembly and the chain storage assembly are convenient to mount, and the whole construction is convenient.

When the construction platform is installed, the door opening frame, the platform assembly and the auxiliary connecting assembly are matched with each other, so that the construction platform can be installed only by arranging the through hole on the wall attached to one side, the bad phenomena of rain leakage and wind channeling are avoided, the wall is not required to be subsequently supplemented, and great convenience is achieved.

To the supporting steel plate with attach being connected between the wall, adopt the cooperation between gusset plate, the reinforcement frame, need not to punch in addition, realized the fixed of supporting steel plate tip, strengthened the fixed of supporting steel plate tip, avoid only adopting supplementary wire rope fixed and lead to the supporting steel plate phenomenon that rocks to appear.

To the footboard that sets up between landing slab and the supporting steel board, then be in order to support the bottom of landing slab, avoid the landing slab to directly support on the supporting steel board, and the middle most position that leads to the landing slab all is unsettled state, in case the landing slab intermediate strut can not live in this way and direct fracture, and cause the incident.

Return the rope sheave frame assembly when installing, utilize the cooperation between the side main tributary fagging, the support column of returning rope sheave frame both sides to only need set up the through-hole on the one side attaches the wall and can realize returning the installation of rope sheave frame assembly, just also avoided appearing leaking rain, scurring the bad phenomenon of wind, also need not follow-up mend the wall, unusual convenience.

For the connection between the return rope wheel frame and the attached wall, the side main supporting panel, the side main supporting bottom plate and the expansion bolts are matched, so that the connection between the return rope wheel frame and the inner wall of the attached wall is realized, holes do not need to be drilled on the attached wall, and the side main supporting reinforcing rib plate is arranged to reinforce the connection between the side main supporting panel and the side main supporting bottom plate, so that the stability of the whole side main supporting plate is ensured.

Lightening holes are formed in the side main supporting panel, the side main supporting bottom plate and the side main supporting reinforcing rib plate, so that the weight of the whole side main supporting plate is lightened on the basis of ensuring the structural strength of the side main supporting plate.

For the design of the rope returning wheel frame, the main beam adopts a mode of matching the two main beam bodies, thereby facilitating the installation of parts such as the rope returning wheel, the rope wheel and the like.

The machine room assembly is matched with the hall door rear side plate and the door opening on the wall, so that the whole machine room assembly is installed on the outer side of the wall, the whole machine room assembly is exposed to the outside through the design, and the construction environment is good and very convenient when the machine room assembly is installed and constructed in subsequent maintenance and the like.

To returning the cooperation between the wheel seat of rope sheave subassembly, adopting first wheel seat and the second wheel seat for partly return the rope sheave and can stretch into in the door opening, lie in the wire rope who attaches the wall with the cooperation, thereby install outside for whole computer lab assembly and provide the basis.

For the arrangement of the machine room reinforcing component, the machine room guide plate, the machine room support frame joint and other parts are matched, so that the machine room assembly is connected with the attached wall in a reinforcing mode, and the stability of the installation of the whole machine room assembly is ensured.

When installing storing up the chain assembly, directly will store up the chain assembly and install the bottom at the car to along with the car is installed the entering together and attaches the wall in, need not get into when the construction such as whole installation and subsequent maintenance attaches the wall bottom, construction environment is better, unusual convenience.

The arrangement of the reinforcing rib plate on the outer side of the turntable frame is used for reinforcing the structure of the whole turntable frame and ensuring the stability of the structure of the turntable frame.

To the installation of storing up the chain axle, the cooperation that adopts storage chain axle installation through-hole on the carousel, store up the external screw thread structure of chain axle and nut to realize storing up the quick detach formula installation of chain axle, easy to assemble and subsequent change.

The chain shaft mounting through holes which are distributed concentrically are arranged in the plurality of groups on the turntable, so that the corresponding chain shaft mounting through holes can be selected to be mounted according to actual working conditions, the size of the rotary drum formed by each chain shaft can be changed, and the requirements of various sizes can be met.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic view of a construction hoist system according to the present invention.

FIG. 2 is a schematic view of a construction platform assembly according to the present invention.

Fig. 3 is a front view of the construction platform assembly of the present invention.

FIG. 4 is a side view of the construction platform assembly of the present invention.

FIG. 5 is a bottom view of the construction platform assembly of the present invention.

Fig. 6 and 7 are schematic diagrams of the return rope pulley frame assembly in different directions.

Fig. 8 is a front view of the return sheave frame assembly of the present invention.

Fig. 9 and 10 are bottom views of the return sheave bracket assembly in different directions.

Fig. 11 and 12 are schematic views of the machine room assembly of the present invention in different directions.

Fig. 13 is a front view of the machine room assembly of the present invention.

Fig. 14 is a schematic view of the installation position of the machine room assembly of the present invention.

Fig. 15 and 16 are schematic views of the storage chain assembly in different directions.

FIG. 17 is a top view of the storage chain assembly of the present invention.

FIG. 18 is a side view of a storage chain assembly of the present invention.

FIG. 19 is a schematic view of the installation position of the chain storage assembly of the present invention.

Detailed Description

The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.

A construction hoist system as shown in fig. 1-19 includes

The four-side wall 5 and the car 10 which is arranged in the wall 5 and ascends and descends, the four-side wall 5 is matched with each other to form a space for the car 10 to ascend and descend, the inner wall of the wall 5 is also provided with a lifting guide rail 11 matched with the car 10, meanwhile, the car 10 is provided with a lifting slider matched with the lifting guide rail 11, the car 10 is driven by a steel wire rope to ascend and descend, the tail end of the steel wire rope is also connected with a counterweight 12, the specific structure of the car 10 and the specific connection and winding modes among the car 10, the steel wire rope and the counterweight 12 are common structures of elevators in the existing market, the detailed description is omitted, one of the four-side wall 5 is facing the indoor, the wall 5 is provided with a plurality of layer door holes 8 corresponding to each floor one by one, and the outer side of each layer door hole 8 on the wall 5 is provided with a protective door covering the door hole 8, the protective door is electrically interlocked, a first door opening is formed in the top end of the attaching wall 5, a hall door front side plate 6 horizontally extending towards the indoor is further arranged on the attaching wall 5 and located on the lower side of the door opening, a hall door rear side plate 7 horizontally extending outwards is arranged on the bottom of the attaching wall on the side opposite to the attaching wall 5 with the layer door opening 8, and a second door opening 9 is further formed in the attaching wall 5 and located above the hall door rear side plate 7.

A construction platform assembly 1, as can be seen from the schematic illustrations shown in FIGS. 2-5, comprises

A door opening frame 101 which is arranged in the door opening and is jointed with the inner wall of the door opening, wherein the door opening frame 101 is of a cuboid frame type structure.

A platform subassembly that is connected with door opening frame 101, the platform subassembly includes a pair of supporting steel plate 102 of support on door opening frame 101, supporting steel plate 102 is a U-shaped groove steel construction that constitutes jointly by two horizontal plates that distribute from top to bottom and a vertical board that connects two horizontal plates, and two supporting steel plate 102 set up mutually in the opposite directions, the opening side of two supporting steel plate 102 all outwards promptly, should be to one side and door opening frame 101 of supporting steel plate 102, the preceding curb plate of room door passes through expansion bolts and links to each other, should be to the opposite side of supporting steel plate 102 and the wall that attaches that has the relative one side of wall that attaches the door opening link to each other through expansion bolts, support a platform board 106 on two supporting steel plate 102.

The connection between the supporting steel plate 102, the door opening frame 101 and the hall door front side plate is as follows: the supporting steel plate 102 is connected with a floor plate 103 at the contact part of the door opening frame 101 and the front side plate of the hall door, the floor plate 103 is an L-shaped plate formed by a vertical plate and a horizontal plate, the side end of the vertical plate of the floor plate 103 is fixed with the supporting steel plate 102 through a pair of horizontally distributed bolts, the vertical plate of the floor plate 103 is also provided with a plurality of pairs of waist-shaped through hole groups which are arranged from top to bottom and can allow the bolts to pass through, each pair of waist-shaped through hole groups is formed by a pair of waist-shaped through holes which are arranged in parallel and are in one-to-one correspondence with the two bolts, the supporting steel plate 102 is provided with a pair of threaded blind holes which are matched with the bolts, the design of the waist-shaped through hole groups is adopted, so that the relative position of the floor plate 103 and the supporting steel plate 102 in the vertical direction can be adjusted, and the vertical height of the floor plate 103 can be adjusted according to the height, the universality is stronger, the bottom end of the horizontal plate of the floor plate 103 is fixedly connected with the inner wall of the bottom side of the door opening frame 101 or the top surface of the hall door front side plate through expansion bolts, and blind holes for installing the expansion bolts are arranged on the door opening frame 101 and the hall door front side plate.

The connection between the supporting steel plate 102 and the attached wall is as follows: the inner side of one side, adjacent to the wall, of the supporting steel plate 102 is further connected with a vertically arranged reinforcing plate 104, and meanwhile, the platform plate 106 is further provided with a pair of grooves for allowing the reinforcing plate 104 to penetrate through. For the connection between the supporting steel plate 102 and the attached wall, the reinforcing plate 104 and the reinforcing frame 105 are matched without additional punching, so that the end part of the supporting steel plate 102 is fixed, the fixing of the end part of the supporting steel plate 102 is enhanced, and the phenomenon that the supporting steel plate 102 shakes due to the fact that only the auxiliary steel wire rope is used for fixing is avoided.

Still be provided with footboard 108 between platform board 106 and the supporting steel plate 102, footboard 108 has the several, long axis direction along supporting steel plate 102 distributes side by side, the both sides of footboard 108 support respectively on two supporting steel plate 102, and realize the fixed connection between footboard 108 and the supporting steel plate 102 through the bolt, footboard 108 is an inverted U-shaped groove steel sheet, still all have a pair of horizontal turn-ups structure in the both sides of footboard 108, thereby make whole footboard 108 be type omega structure, platform board 106 covers all footboard 108, and directly support on all footboard 108. The tread 108 disposed between the platform plate 106 and the support steel plate 102 is to support the bottom of the platform plate 106, avoid the platform plate 106 from being directly supported on the support steel plate 102, and most of the middle position of the platen 106 is suspended, so that the platen 106 may be directly broken once it is not supported in the middle, causing safety accidents and, through the cooperation of the footplates 108, the platform plate 106 does not need to be directly fixed with the supporting steel plate 102, this design, allows the entire platform deck 106 to be widened for ease of standing by the builder, if the platform plate 106 is directly fixed to the support steel plate 102, it is necessary to fix the platform plate 106 to the support steel plate 102, and then passes through the door opening frame 101, otherwise, the subsequent fixing of the platform board 106 is troublesome, and thus the width of the platform board 106 is limited by the door opening frame 101.

An auxiliary connection assembly for connecting the supporting steel plates 102 and the door opening frame 101, wherein the auxiliary connection assembly comprises a pair of auxiliary steel wire ropes 107 which are correspondingly connected with the two supporting steel plates 102 one by one, one side of each auxiliary steel wire rope 107 is connected with the reinforcing plate 104, the other side of each auxiliary steel wire rope 107 is connected with the top end of the door opening frame 102, so that the auxiliary steel wire ropes 107, the door opening frame 101 and the supporting steel plates 102 are distributed in a triangular shape, stable installation of the platform plates 106 is ensured by utilizing the characteristic of triangular stability, steel wire rope installation rings are connected to two sides of each auxiliary steel wire rope 107, meanwhile, through holes for allowing the steel wire rope installation rings to pass through are formed in the reinforcing plate 104, a Z-shaped installation plate 109 for allowing the steel wire rope installation rings to pass through is formed in the door opening frame 101, and through holes for allowing the steel.

When the construction platform is installed, firstly, the door opening frame 101 and the door opening on the attached wall are fixed by cement pouring or other methods, then each pedal 108 is respectively connected with two supporting steel plates 102 through bolts, then a reinforcing plate 104, a reinforcing frame 105, a baseboard 103 and expansion bolts are installed on the end parts of the supporting steel plates 102, the construction platform is preformed, then two ends of an auxiliary steel wire rope 107 are respectively installed on the reinforcing plate 104 on the door opening frame 101, then the two supporting steel plates 102 penetrate through the door opening frame 101 until the end surfaces of the supporting steel plates 102 are propped against the attached wall, then the supporting steel plates 102 are fixed with the door opening frame 101 and the front side plate of the hoistway door by the expansion bolts, the supporting steel plates 102 are preliminarily fixed, then the platform plates 106 are supported on the pedals 108, and then a constructor stands on the platform plates 106 to match and fix the expansion bolts on the reinforcing frame 105 at the other ends of the supporting steel plates 102 with the installation holes reserved on the inner wall in advance The final reinforcement of the support steel plate 102 is then completed, and a completed erection of the construction platform is also formed.

A return sheave frame assembly 2, as shown schematically in fig. 6-10, includes

The rope returning wheel frame is horizontally arranged and comprises a main beam and a front joint, the main beam is jointly composed of a pair of main beam bodies 201 which are arranged in parallel, the main beam bodies 201 are of a C-shaped groove steel plate structure jointly formed by a pair of horizontal plates which are distributed up and down and a vertical plate which is connected with the two horizontal plates, the opening sides of the two main beam bodies 201 are positioned at the outer side, and a gap for accommodating the rope returning wheel and the rope wheel is reserved between the two main beam bodies 201, so that the installation of parts such as the rope returning wheel and the rope wheel is convenient, the front sealing plate 202 and the rear sealing plate 203 are respectively connected with the front side and the rear side of the main beam, the front sealing plate 202 and the rear sealing plate 203 are fixedly welded with the two main beam bodies 201, the two main beam bodies 201 are connected to form a whole, a lifting hook cage is also arranged at the middle position of the two main beam bodies 201, the two sides of the bottom end of the U-shaped groove steel plate 206 are respectively provided with a pair of pressure guide plates 207, one side of each pressure guide plate 207 is attached to the side end of the main beam main body 201, one side of each pressure guide plate 207, which is attached to the main beam main body 201, is provided with a step-shaped concave surface attached to the profile of the main beam main body 201, the pressure guide plates 207 and the U-shaped groove steel plate 206 are respectively provided with a through hole for allowing a bolt to pass through, the bolts sequentially pass through the through holes on the pressure guide plates 207 and the U-shaped groove steel plate 206 and are locked by nuts, so that the U-shaped groove steel plate 206 and the main beam main body 201 are fixed, the bottom end of the U-shaped groove steel plate 206, which is positioned between the two main beam main bodies 201, is also provided with a hook plate, the hook plate is an I-shaped plate formed by a pair of vertical plates 209 and a transverse plate 208 connecting the two vertical, the relative position between the car lifting hook and the main beam main body 201 is positioned, the car lifting hook is convenient to install quickly, and a lifting hook hole is formed in the transverse plate 208.

The front joint comprises a pair of front joint main part 204 jointly, and front joint main part 204 is by the C word groove steel sheet structure that constitutes jointly to the horizontal plate that distributes from top to bottom and the vertical board that links two horizontal plates, and the opening side of two front joint main parts 204 all is located the outside, and two front joint main parts 204 are close to one side of girder and pass through another preceding shrouding 202 welded fastening, and the opposite side of two front joint main parts 204 is through a C word groove steel sheet welded fastening, and the connection between front joint and the girder is: a plurality of bolt connecting holes which are in one-to-one correspondence are formed in the two front sealing plates 202, and the bolts sequentially penetrate through the bolt connecting holes in the two front sealing plates 202 and then are locked by nuts, so that the front joint and the main beam are fixed.

One side of returning the rope wheel carrier stretches into from the top of attaching the door opening of wall 5 to be connected fixedly through the cooperation of side main tributary fagging and expansion bolts with the inner wall that opens attaching wall 5 of the relative one side of wall 5 that has the door opening, its connection structure specifically is: the bottom end of one side of the return rope pulley frame close to the wall is provided with a side main supporting plate, the side main supporting plate is a 7-shaped plate formed by a side main supporting panel 213 arranged horizontally and a side main supporting bottom plate 211 arranged vertically, two sides of the side main supporting panel 213 respectively extend out of the outer sides of the two main beam bodies 201, so that the two main beam bodies 201 are supported together, the side main supporting panel 213 is fixed with the main beam bodies 201 through the matching of bolts and nuts, the side main supporting bottom plate 211 and the side main supporting panel 213 are welded and fixed, a plurality of side main supporting reinforcing rib plates are further arranged between the side main supporting panel 213 and the side main supporting bottom plate 211, each side main supporting reinforcing rib plate comprises a plurality of first reinforcing rib plates 212 distributed in parallel along the distribution direction of the two main beam bodies 201 and a second reinforcing rib plate 214 connected with each first reinforcing rib plate 212, a plurality of expansion bolts are mounted on the side main support bottom plate 211. For the connection between the rope returning wheel frame and the attached wall 5, the side main supporting panel 213, the side main supporting bottom plate 211 and the expansion bolts are matched, so that the connection between the rope returning wheel frame and the inner wall of the attached wall 5 is realized, holes do not need to be drilled on the attached wall 5, and the side main supporting reinforcing rib plates are arranged to reinforce the connection between the side main supporting panel 213 and the side main supporting bottom plate 211, so that the stability of the whole side main supporting plate is ensured.

Lightening holes are formed in the side main supporting panel 213, the side main supporting bottom plate 211 and the side main supporting reinforcing plate. The weight of the whole side main supporting plate is reduced on the basis of ensuring the structural strength of the side main supporting plate by arranging lightening holes on the side main supporting panel 213, the side main supporting bottom plate 211 and the side main supporting reinforcing rib plates.

The other side of the rope returning wheel frame extends out of the door opening and is fixed on the hoistway door front side plate 6 through a vertically arranged support column, the support column comprises a pair of vertically arranged support column main bodies 210, the support column main bodies 210 are of U-shaped channel steel structures, the opening sides of the two support column main bodies 210 are distributed oppositely, the middle positions of the two support column main bodies 210 are welded and fixed through a connecting channel steel 216, the connecting channel steel 206 is in an n shape, the bottom sides of the two support column main bodies 210 are connected with a connecting bottom plate 217, the connecting bottom plate 217 is fixed with the hoistway door front side plate 6 through bolts, the top ends of the two support column main bodies 210 are also welded with an n-shaped transitional connecting channel steel 218, the front joints are supported on the transitional connecting channel steel 218, the two front joint main bodies 204 are locked through nuts after penetrating through the transitional connecting channel steel 218 through bolts, and the, and then realized returning and fixing between rope sheave frame and the support column.

Install the first rope sheave subassembly that returns on returning the rope sheave frame, first return the rope sheave subassembly and include that the several is installed at the rope sheave 218 that returns rope sheave frame one side, still all be provided with one in the upper and lower both sides of two girder main parts 201 simultaneously and return rope sheave installing support 220, return the both sides of rope sheave 218 and pass through the cooperation of bearing and bearing frame and install on returning rope sheave installing support 220 or girder main part 201, it still installs rope blocking plate 219 to lie in each rope sheave 218 department of returning on returning the rope sheave frame, every rope blocking plate 219 that returns that rope sheave 218 corresponds all has two, rope blocking plate 219 is an L shaped plate.

The rope head assembly is arranged on the rope return wheel frame, the rope head assembly comprises a car rope hitch plate 221 arranged on the rope return wheel frame and a counterweight rope hitch plate 222 arranged at the side of the rope return wheel 218, the car rope hitch plate 221 and the counterweight rope hitch plate 218 are respectively positioned at two sides of a car hook, the car rope hitch plate 221 and the counterweight rope hitch plate 222 are also fixed on the main beam body 201 through a pressure guide plate, a plurality of rope wheels 223 are respectively arranged on the car rope hitch plate 221 and the counterweight rope hitch plate 222, each rope wheel 223 is arranged through an independent pull rod seat 224, two sides of the rope wheels 223 are arranged on the pull rod seats 224 through the matching of a bearing and a bearing seat, a groove for installing the rope wheels 223 is arranged at the bottom side of the pull rod seat 224, so that the pull rod seat 224 is n-shaped as a whole, the pull rod seat 224 is positioned below the car rope hitch plate 221 or the counterweight rope hitch plate 222, the top end of the pull rod seat 224 is connected with a pull, a pin shaft is connected with the top end of the pull rod 225, a rope end spring 226 is sleeved on the outer side of a section of the pull rod 225 above the car rope hitch plate 221 or the counterweight rope hitch plate 222, a rope end snapping piece is arranged on the top side of the rope end spring 226, the top end of the rope end snapping piece is positioned below the pin shaft, a rubber cushion cover is arranged on the bottom side of the rope end spring 226, the bottom surface of the rubber cushion cover is attached to the upper end surface of the car rope hitch plate 221 or the counterweight rope hitch plate 222,

when the return rope pulley frame assembly is installed, a construction platform is arranged in the wall, preparation is made, then the main beam, the return rope pulley 218, the front connector, the side main support plate, the expansion bolt, the support column and the like are assembled and fixed to form the whole return rope pulley frame assembly, then the whole return rope pulley frame assembly enters from the door opening of the wall 5 until the side main support plate is attached to the wall 5, then the side main support plate and the wall 5 are fixed through the expansion bolt, and then the support column is fixed to the top end of the hoistway door front side plate 6 through the bolt, so that the installation of the return rope pulley frame assembly is completed.

A machine room assembly 3, as can be seen from the schematic illustrations shown in FIGS. 11-14, comprises

A computer lab support, the computer lab support includes a first support 301 that the level set up, this first support 301 is assembled the welding together by four C type channel-section steels that are rectangle form and distribute and forms, and the opening side of four C type channel-section steels is all outwards, still weld a plurality of deep floor that distribute side by side along the major axis direction of opening side on the opening side inner wall of C type channel-section steel, thereby make whole C type channel-section steel construction more firm, the bottom of four edges and corners of first support 301 all supports on room door rear side board 7 through a supporting legs 302 of vertical setting, supporting legs 302 is a C type channel-section steel construction, and the opening side of supporting legs 302 is all inwards, the top of supporting legs 302 is fixed with the C type channel-section steel that constitutes first support 301, still be connected with reinforcing plate 303 between supporting legs 302 and C type channel-section steel, reinforcing plate 303 is right angle triangle-shaped, and reinforcing plate 303 and 302, All welded fastening between the C type channel bar, setting through reinforcing plate 303, thereby consolidate being connected between supporting legs 302 and the first support 301, ensure firm of whole structure, still be connected with a lower margin 304 in the bottom of supporting legs 302, lower margin 304 is one by a riser, a diaphragm is L form welding and forms, still be connected with a triangle-shaped strengthening rib in the both sides of the junction of riser and diaphragm, thereby strengthen the structural strength of whole lower margin 304, the riser of lower margin 304 is fixed through the bolted connection of a pair of upper and lower distribution with the bottom side end of supporting legs 302, it has the waist shape through-hole that the bolt passed to open on lower margin 304, the horizontal plate of lower margin 304 stretches out the bottom of supporting legs 302, still be connected with the deep floor that flushes with the horizontal plate simultaneously in the bottom of supporting legs 302, the horizontal plate of lower margin 304 is fixed mutually with room door rear side board 7 through expansion bolts.

The second that installs on first support 301 returns the rope sheave bearing member, the second returns the rope sheave bearing member and includes that first returning rope sheave 305, second returning rope sheave 306 and third return rope sheave 307, first returning rope sheave 305 returns the rope sheave 306 with the second and is located same horizontal plane, second returning rope sheave 306 and third return rope sheave 307 are located same vertical plane, third returning rope sheave 307 is located the upside, second returning rope sheave 306 is located the downside, the third returns the rope sheave 307 and the second and returns the tip of rope sheave 306 and all be located the door opening inboard on attaching the wall, with the cooperation be located the wire rope who attaches in the wall, thereby install in the outside for whole computer lab assembly and provide the basis.

The connection between the return sheave assembly and the first bracket 301 is: the three return rope wheels are arranged on a second support, the second support comprises a pair of first wheel seats 308 which are horizontally arranged, the first wheel seats 308 are of a C-shaped groove steel structure, the opening sides of the first wheel seats 308 are all outward, a plurality of reinforcing rib plates which are distributed in parallel along the long axis direction of the opening sides are welded on the inner wall of the opening sides of the first wheel seats 308, so that the structure of the whole first wheel seats 308 is more stable, one sides of the two first wheel seats 308 are fixed with the bottom end of the first support 301 through the matching of bolts and nuts, a gap for installing the return rope wheels is reserved between the two first wheel seats 308, the other sides of the two first wheel seats 308 extend into the door opening 8, the first return rope wheels 305 and the second return rope wheels 306 are arranged on the first wheel seats 308 in parallel, a vertically arranged second wheel seat 309 is respectively arranged on the sections of the two first wheel seats 308 which extend out of the first support 301, the second wheel seat 309 is also of a C-shaped groove steel structure, and outside the open side of the second wheel seat 309, a plurality of reinforcing rib plates distributed in parallel along the long axis direction of the open side are welded on the inner wall of the open side of the second wheel seat 309, so that the structure of the whole second wheel seat 309 is more stable, the bottom end of the second wheel seat 309 is welded and fixed with the top end of the first wheel seat 308, the third return rope wheel 307 is installed on the second wheel seat 309, rope blocking plates 310 corresponding to the first return rope wheel 305, the second return rope wheel 306 and the third return rope wheel 307 are respectively installed on the first wheel seat 308 and the second wheel seat 309, two rope blocking plates 310 corresponding to each return rope wheel are provided, and each rope blocking plate 310 is in an L shape.

The top ends of the two second wheel seats 309 are further connected with a machine room reinforcing component, the machine room reinforcing component comprises a machine room guide plate 311 welded and fixed with the top ends of the two second wheel seats 309, the upper end of the machine room guide plate 311 is connected with an I-shaped machine room support 313 vertically arranged, a machine room support plate 312 is further arranged between the machine room support 313 and the machine room guide plate 311, the machine room support 313 and the machine room support plate 312 are welded and fixed, two sides of the machine room support plate 312 extend out of the machine room support 313, a section of the machine room support plate 312 extending out of the machine room support 313 is fixed with the machine room guide plate 311 through matching of bolts and nuts, the top end and two upper side ends of the machine room support 313 are connected with a machine room support joint 314, the machine room support joint 314 is an L-shaped plate formed by a transverse plate and a vertical plate, and a transverse plate of the machine room support joint 314 positioned at the top end of the machine room, The vertical plate is arranged on the upper portion, the transverse plate is welded and fixed with the top end of the machine room support frame 313, the transverse plates of the machine room support frame joint 314 positioned at two upper side ends of the machine room support frame 313 are arranged on the upper portion and the vertical plate is arranged on the lower portion, the vertical plates are welded and fixed with the upper side end of the machine room support frame 313, the transverse plates are flush with the top end of the machine room support frame 313, and the machine room support frame joint 314 is fixed with the inner wall of the door opening 9 on the attached wall. For the arrangement of the machine room reinforcing component, the machine room guide plate 311, the machine room support frame 313, the machine room support frame joint 314 and other components are matched, so that the reinforcing connection between the machine room assembly and the attached wall 5 is realized, and the stability of the installation of the whole machine room assembly is ensured.

A drive assembly is mounted on the first bracket 301 and includes a machine 315 mounted on the first bracket.

The connection between the traction machine 315 and the first support 301 is: install the third support on the up end of first support 301, the third support includes a pair of hauler fixed plate 316 that is connected with first support 301 top, hauler fixed plate 316 is a C type groove steel construction, and outside the opening side homogeneous phase of hauler fixed plate 316, still weld on the opening side inner wall of hauler fixed plate 316 a plurality of deep floor that distribute side by side along the major axis direction of opening side, thereby make the structure of whole hauler fixed plate 316 more firm, the both sides of two hauler fixed plates 316 are connected fixedly through a pair of shrouding 317, the bottom of hauler fixed plate 316 and the top welded fastening of first support 301, the both sides of the bottom of hauler 315 are fixed on two hauler fixed plates 316 through a hauler bedplate 318 respectively.

When the machine room assembly is installed, firstly, the components of the machine room assembly, such as the first support 301, the return rope wheel, the traction machine 315, the second support, the third support and the like, are connected by welding, matching of bolts and nuts and the like to form a whole machine room assembly, then the whole machine room assembly is conveyed to the hall door rear side plate 7, the position of the machine room assembly is positioned by the mode that the three machine room support frame joints 314 are attached to the inner wall of the door opening 9, and finally, each expansion bolt is screwed, so that the installation of the machine room assembly is realized.

A chain assembly 4, as shown schematically in FIGS. 15-19, includes

The utility model provides an install and store up chain support in car 10 below, store up chain support and include a pair of carousel frame 401 that sets up in the both sides of car 10 bottom, carousel frame 401 is a C shape channel-section steel structure, and the opening side of two carousel frames 401 all outwards sets up, has all welded first deep floor 212 in the both sides of carousel frame 401, and it has second deep floor 403 still to weld on the outer wall of one side that two carousel frames 401 carried on the back mutually. The first reinforcing rib plate 212 and the second reinforcing rib plate 403 are additionally arranged on the outer side of the turntable frame 401, so that the structure of the whole turntable frame 401 is reinforced, and the stability of the structure of the turntable frame 401 is ensured.

The both sides of carousel frame 401 are connected with car 10's bottom through carousel sedan-chair bottom connecting plate 404, the bottom of carousel sedan-chair bottom connecting plate 404 is fixed mutually with first deep floor 212 through the cooperation of bolt and nut, the cooperation through bolt and nut of carousel sedan-chair bottom connecting plate 404 is connected with sedan-chair bottom deep floor angle iron 405, welded fastening between the top of sedan-chair bottom deep floor angle iron 405 and car 10's bottom, the middle part position of two carousel frames 401 is connected fixedly through a reinforced connection board 406, reinforced connection board 406 is a C type groove steel construction, both sides and the middle part position at the opening part of reinforced connection board 406 have all welded shrouding 407, reinforced connection board 406's top is connected with car 10's bottom through the buffer board, reinforced connection board 406, the buffer board, realize fixing between the three through the cooperation of bolt and nut between the car 10.

The pair of rotary drum assemblies are arranged on the rotary disc frames 401 and located on two sides of the reinforcing connecting plate 406, each rotary drum assembly comprises a pair of rotary discs 408 which are respectively arranged on the inner sides of the two rotary disc frames 401, the two rotary discs 408 are connected through rotary disc shafts 409, two sides of each rotary disc 409 penetrate through the two rotary disc frames 401 and then are fixed through reinforcing plates 410, grooves for embedding the reinforcing plates are formed in the rotary disc shafts 409, the reinforcing plates 410 are fixed with the rotary disc frames 401 through matching of bolts and nuts, T-shaped shaft sleeves 414 are respectively sleeved on two sides of each rotary disc shaft 409 located in the corresponding rotary disc 408, a bearing is further arranged between each shaft sleeve 414 and each rotary disc shaft 409, and the rotary discs 408 are fixed on the outer sides of the shaft sleeves 414, so that the rotary discs 408 and the rotary disc shafts 409 rotate relatively.

A plurality of cylindrically distributed chain storage shafts 411 are further arranged on the outer side of the circumference of the turntable shaft 409, each chain storage shaft 411 is matched with a rotary drum for accommodating the compensation chain to wind, a rope blocking plate 412 is further arranged on the turntable 408, the rope blocking plate 412 is L-shaped, one side of the rope blocking plate 412 is fixed with the turntable frame 401 through the matching of bolts and nuts, and the other side of the rope blocking plate 412 extends into the outer side of the rotary drum.

The chain storage shaft 411 is installed as follows: the turntable 408 is provided with chain storage shaft mounting through holes 413 which correspond to the chain storage shafts 411 one by one, two sides of each chain storage shaft 411 respectively penetrate through the chain storage shaft mounting through holes 413 on the two turntables 408, and one section of each chain storage shaft 411 extending out of the turntable 408 is provided with an external thread structure, and the outer sides of the two turntables 408 are respectively in threaded fit with the chain storage shafts through nuts, so that the fixation of the chain storage shafts 411 and the turntables 408 is realized. To the installation of storing up chain axle 411, the cooperation that adopts storage chain axle mounting through hole 413 on carousel 408, the external screw thread structure and the nut of storing up chain axle 411 to realize storing up the quick detach formula installation of chain axle 411, easy to assemble and subsequent change.

The chain shaft mounting through holes 413 opened on the turntable 408 are provided in a plurality of groups, each group of chain shaft mounting through holes is composed of the chain shaft mounting through holes 413 which are distributed in a circular shape and correspond to the chain shafts 411 one by one, and each group of chain shaft mounting through holes is concentrically distributed on the turntable 408 from inside to outside. Through set up the chain axle installation through-hole group that stores up that the array distributes with one heart on carousel 408 to can select the chain axle installation through-hole that stores up that corresponds to install according to the operating condition needs, thereby realized the change of the size of the rotary drum that each stores up chain axle 411 and form, in order to satisfy multiple not unidimensional demand.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A construction hoist system which characterized in that: comprises that

2. The construction hoist system of claim 1, wherein: the connection between the supporting steel plate and the door opening frame and between the hoistway door front side plate is as follows: the contact parts of the support steel plate, the door opening frame and the hall door front side plate are both connected with an L-shaped floor plate, the side end of the floor plate is fixed with the support steel plate through a bolt, and the bottom end of the floor plate is fixed with the door opening frame or the hall door front side plate through an expansion bolt;

3. The construction hoist system of claim 1, wherein: the connection between the rope returning wheel frame and the attached wall in the rope returning wheel frame assembly is as follows: the bottom end of one side of the rope return wheel frame close to the wall is provided with a side main supporting plate, the side main supporting plate is a 7-shaped plate formed by a horizontally arranged side main supporting panel and a vertically arranged side main supporting bottom plate, a plurality of side main supporting reinforcing rib plates are further arranged between the side main supporting panel and the side main supporting bottom plate, and a plurality of expansion bolts are arranged on the side main supporting bottom plate;

return the rope sheave frame and include girder, front joint, both sides are connected with preceding shrouding, back shrouding respectively around the girder, and front joint is connected fixedly through preceding shrouding and girder, the girder comprises a pair of parallel arrangement's girder main part jointly, leaves the clearance that holds the installation of returning the rope sheave between two girder main parts, still installs a car lifting hook at the middle part position of two girder main parts, and car rope hitch plate and the both sides that return the rope sheave and be located car lifting hook respectively, the front joint supports on the support column to link to each other with the support column through the bolt.

4. The construction hoist system of claim 1, wherein: the second returns and is connected between rope sheave subassembly and the first support for: the three return rope wheels are arranged on a second support, the second support comprises a pair of first wheel seats which are horizontally arranged, one side of each first wheel seat is fixed with the bottom end of the first support, the other side of each first wheel seat extends into the door opening, the first return rope wheel and the second return rope wheel are arranged on the first wheel seats in parallel, a vertically arranged second wheel seat is also respectively arranged on one section of each first wheel seat extending out of the first support, the third return rope wheel is arranged on the second wheel seat, and rope blocking plates corresponding to the first return rope wheel, the second return rope wheel and the third return rope wheel are respectively arranged on the first wheel seat and the second wheel seat;

5. The construction hoist system of claim 1, wherein: a reinforcing rib plate is arranged on the outer side of the turntable frame;

the chain storage shaft is installed as follows: the turntables are provided with chain storage shaft mounting through holes which correspond to the chain storage shafts one to one, two sides of each chain storage shaft respectively penetrate through the chain storage shaft mounting through holes on the two turntables, a section of each chain storage shaft extending out of the turntables is provided with an external thread structure, and the outer sides of the two turntables are respectively in threaded fit with the chain storage shafts through nuts, so that the chain storage shafts and the turntables are fixed;

the chain shaft mounting through holes are distributed in a circular shape and are in one-to-one correspondence with the chain shafts, and the chain shaft mounting through holes are distributed on the turntable from inside to outside in a concentric mode.