CN108756199A - Attached lifting scaffold lifting gear - Google Patents

Abstract

An attached lifting scaffold lifting device, which includes a scaffold main body, is characterized in that it also includes a lifting device, a fixing member and a tensioning device for attaching to a building structure and fixing it to a wall, and the fixing member includes a first fixing member and a tensioning device. The second fixture, the lifting device and the tensioning device are respectively connected to the scaffold main body, the lifting device includes a driving motor and a chain, the chain is driven by the driving motor, the chain is connected to the first fixed part and the second fixing part, and the first fixing part and the second fixing part are connected by a transmission rope tensioned on the tensioning device, and the tensioning device, the first fixing part, the second fixing part, A pulley structure is formed between the transmission rope and the chain. When in use, the first fixing piece and the second fixing piece can be attached to the building structure in turn and fixed on the wall, and the first fixing piece and the second fixing piece can be placed on the Under the action of the lifting device, it goes up and down in turn.

Description

Attached Lifting Scaffold Lifting Device

【Technical field】

The invention relates to building construction hoisting equipment, in particular to an attached lifting scaffold lifting device.

【Background technique】

At present, attached lifting scaffolds (commonly known as climbing frames) are often used in the construction of high-rise and super high-rise buildings. Attached lifting scaffold refers to the construction scaffold that adopts various forms of frame structure and attached support structure, and relies on special lifting equipment installed on the frame or engineering structure to realize lifting. The lifting equipment attached to the lifting scaffold is usually a slow-rising chain hoist. Its principle is shown in Figure 5: the chain 22 of the chain hoist forms a pulley structure with a wall fixing 70 and a tensioning device 40. When working, the The wall-attached fixture 70 is attached to the wall and fixed to the building structure. When the chain hoist is working, the chain 22 drives the scaffold to go up and down, and when the scaffold goes up and down, the chain hoist also goes up and down synchronously. After lifting one level, when lifting next time, just need to take off this wall-attached fixing part 70 from current position, then it is fixed on the position of higher level. When re-fixing the wall-attached fixture 70, not only need to manually disassemble the wall-attached fixture 70, but also need to reverse the chain, and the chain hoist will be returned to a suitable distance before it can be promoted next time. In actual application, it is time-consuming and laborious, which is not conducive to improving efficiency. In addition, accurate control cannot be performed during the chain-rewinding process, and the chain hoist is heavy. If it is not operated properly, the chain hoist may damage the scaffolding, thereby causing safety accidents or potential safety hazards.

【Content of invention】

The present invention aims at solving the above-mentioned problems, and provides a novel attached lifting scaffold lifting device.

In order to achieve the above object, the present invention provides a lifting device for attached lifting scaffold, which includes a scaffold main body, and is characterized in that it also includes a lifting device, a fixing member and a tensioning device for attaching to a building structure and fixing it to a wall. The fixing member includes a first fixing member and a second fixing member, the lifting device and the tensioning device are respectively connected with the scaffold main body, the lifting device includes a driving motor and a chain, and the chain is driven by the driving motor, The chain is connected with the first fixing piece and the second fixing piece, and the first fixing piece and the second fixing piece are connected by a transmission rope tensioned on the tensioning device. The tensioning device, the second fixing piece A pulley structure is formed between the first fixing part, the second fixing part, the transmission rope and the chain. When in use, the first fixing part and the second fixing part can be fixed to the building structure in turn, and the first fixing part , The second fixing member can be lifted and lowered in turn under the action of the lifting device.

The lifting device includes a main sprocket, a first slave sprocket, and a second slave sprocket, and the first slave sprocket and the second slave sprocket are respectively arranged on both sides of the main sprocket. A first coaxial gear is provided on a fixed part, a second coaxial gear is provided on the second fixed part, the chain is sheathed on the main sprocket, and one end of the chain goes around the The first coaxial gear and the first slave sprocket are connected to one end of the transmission rope, and the other end of the chain is sequentially passed around the second coaxial gear and the second slave sprocket to connect with the transmission rope. Connect the other end.

The tensioning device includes a first fixed pulley, a second fixed pulley and a third fixed pulley, one end of the transmission rope is connected to one end of the chain, and the other end of the transmission rope goes around the first fixed pulley in turn , the first coaxial gear, the second fixed pulley, the second coaxial gear, and the third fixed pulley are connected with the other end of the chain.

The tensioning device is provided with a base, a first hook is provided on the base, and a first hanging point is provided at the top or bottom of the scaffold main body, the first hook is connected to the The first suspension point is connected.

A second hanging point is provided at the other end of the scaffold body opposite to the tensioning device, and a second hook is provided on the lifting device, and the second hook is connected to the second hanging point.

The first fixed pulley, the second fixed pulley and the third fixed pulley are respectively arranged on the base, and the second fixed pulley is located between the first fixed pulley and the third fixed pulley.

The first coaxial gear includes a first transmission wheel and a second transmission wheel coaxially arranged, the second coaxial gear includes a third transmission wheel and a fourth transmission wheel coaxially arranged, and the chain passes around the first transmission wheel When the coaxial gear and the second coaxial gear are used, it is wound on the first transmission wheel and the third transmission wheel; when the transmission rope is wound around the first coaxial gear and the second coaxial gear, its Set on the second transmission wheel and the fourth transmission wheel.

The beneficial contribution of the present invention is that it effectively solves the above-mentioned problems. The attached lifting scaffold lifting device of the present invention is provided with two fixing parts-the first fixing part and the second fixing part. When working, one of the fixing parts is attached to the building structure and fixed on the wall, and the other fixing part can be fixed with the whole body. Lifting and lifting to the next fixed point of the attached wall, so as to facilitate the next round of lifting, the original fixing part can be directly removed and the other fixing part can be directly fixed at the next fixed point of the attached wall, without repeated disassembly of the same fixing part installed, and there is no need to manually rewind the lifting device. Since the lifting device for attached lifting scaffold of the present invention is provided with two fixing parts, it can be fixed and lifted in turn. It only needs to control the forward and reverse rotation of the drive motor, and the other fixing part that is not fixed can be lifted while lifting the scaffold. It can be lifted to a suitable position to facilitate the next round of lifting, so it is very convenient to use and can save a lot of manpower and time. In addition, the attached lifting scaffold lifting device of the present invention does not need to be chained down, and the distance between the lifting device and the scaffold body is relatively constant, so the lifting device cannot hit the scaffold body, thereby improving safety. The attached lifting scaffold lifting device of the present invention has a novel structure, is convenient to use, and has high safety. It has strong practicability and should be vigorously promoted.

【Description of drawings】

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the principle of the present invention.

Fig. 3 is a schematic diagram of the principle of the present invention.

Fig. 4 is a schematic diagram of the principle of the present invention.

Fig. 5 is a schematic diagram of the principle of the background technology.

Among them, the scaffold body 10, the first hanging point 11, the second hanging point 12, the vertical main frame 13, the horizontal support truss 14, the lifting device 20, the driving motor 21, the chain 22, the main sprocket 23, the first slave Sprocket 24, the second from the sprocket 25, the second hook 26, the first fixed piece 30, the first coaxial gear 31, the first transmission wheel 311, the second transmission wheel 312, the tensioning device 40, the first fixed Pulley 41, second fixed pulley 42, third fixed pulley 43, base 44, first hook 45, second fixing member 50, second coaxial gear 51, third transmission wheel 511, fourth transmission wheel 512, Drive rope 60, attached wall fixture 70.

【Detailed ways】

The following examples are further explanations and supplements to the present invention, and do not constitute any limitation to the present invention.

As shown in Figures 1 to 4, the main point of the attached lifting scaffold lifting device of the present invention is that it is provided with two fixing parts: the first fixing part 30 and the second fixing part 50, which can be lifted and lowered in turn, and can be rotated It is attached to the wall and fixed to the building structure, so during the lifting process, the entire installation device can be lifted and lowered by taking turns fixing and lifting the two fixing parts.

The attached lifting scaffold lifting device of the present invention includes a scaffold main body 10 , a lifting device 20 , a fixing piece and a tensioning device 40 . The fixing parts include a first fixing part 30 and a second fixing part 50 .

As shown in Figures 1 to 4, the scaffold body 10 is a raised and lowered structure, which needs to be climbed or lowered layer by layer along with the construction project, and its specific structure and structural requirements can refer to known technologies. Normally, the scaffold body 10 includes three parts: a vertical main frame 13 , a horizontal support truss 14 and a frame frame. The vertical main frame 13 is perpendicular to the facade of the building structure and connected with the attached support structure, which is a vertical frame mainly bearing and transmitting vertical and horizontal loads. The horizontal support truss 14 is parallel to the building wall, and it mainly bears the vertical load of the frame body, which is a horizontal support structure that transmits the vertical load to the vertical main frame 13 . The rack body frame is the rack body between two adjacent vertical main frames 13 and on the horizontal support truss 14 .

As shown in Figures 1 to 4, for the convenience of setting and connecting the tensioning device 40 and the lifting device 20, a first hanging point 11 and a second hanging point are respectively provided at the top and bottom of the scaffold body 10. 12. Wherein, the first hanging point 11 is used for connecting the tensioning device 40 , and the second hanging point 12 is used for connecting the lifting device 20 . For the structures and requirements of the first suspension point 11 and the second suspension point 12, reference may be made to known technologies, and the two are arranged opposite to each other. In this embodiment, the first hanging point 11 is set at the top of the scaffold body 10 , and the second hanging point 12 is set at the bottom of the scaffold body 10 . In other embodiments, the first hanging point 11 can also be set at the bottom of the scaffold body 10 , and the second hanging point 12 can also be set at the top of the scaffold body 10 .

As shown in FIGS. 1 to 4 , the lifting device 20 includes a driving motor 21 , a chain 22 , a main sprocket 23 , a first slave sprocket 24 , a second slave sprocket 25 , and a second hook 26 .

As shown in FIGS. 1 to 4 , the drive motor 21 is used to provide lifting power, and a known drive motor 21 can be used, such as a conical rotor motor.

As shown in FIGS. 1 to 4 , the main sprocket 23 is driven by the driving motor 21 , and its specific driving structure can refer to known technologies. For example, in actual implementation, the lifting device 20 can be an electric chain hoist, and its drive motor 21 and main sprocket 23 can be arranged with reference to the internal structure of a known electric hoist. The main sprocket 23 can be driven to rotate after being powered by the drive motor 21 .

As shown in FIGS. 1 to 4 , the first slave sprocket 24 and the second slave sprocket 25 are symmetrically arranged on both sides of the main sprocket 23 , and are used to arrange the chain 22 to form a pulley structure.

As shown in FIGS. 1 to 4 , the second hook 26 is disposed on the lifting device 20 and connected to the second hanging point 12 . For the structure and load-bearing requirements of the second hook 26, reference may be made to known technologies.

As shown in FIGS. 1 to 4 , the lifting device 20 is except the drive motor 21 , the chain 22 , the main sprocket 23 , the first slave sprocket 24 , the second slave sprocket 25 , and the second hook 26 . Other internal electrical structures can refer to known technologies, for example, braking unit, control unit, deceleration unit, etc. In this embodiment, the lifting device 20 is a chain hoist.

As shown in Figures 1 to 4, the first fixing part 30 and the second fixing part 50 are used for wall-attached fixing with the building structure, and their specific shapes and structures can be set according to needs, for example, they can be set to be directly It can be fixed on the building structure, and can also be fixedly connected with the wall support fixed on the building structure. When in use, one of the first fixing part 30 and the second fixing part 50 is fixed on the building structure, and the other fixing part moves up and down with the whole.

As shown in Figures 1 to 4, in order to facilitate the connection of the chain 22 and the transmission rope 60, a first coaxial gear 31 is provided on the first fixing member 30, and a first coaxial gear 31 is provided on the second fixing member 50. The second coaxial gear 51 . The first coaxial gear 31 includes a first transmission wheel 311 and a second transmission wheel 312 arranged coaxially, and the second coaxial gear 51 includes a third transmission wheel 511 and a fourth transmission wheel 512 arranged coaxially. The first transmission wheel 311 and the third transmission wheel 511 are used to set the chain 22 , and the sprockets matching the chain 22 can be selected. The second transmission wheel 312 and the fourth transmission wheel 512 are used to set the transmission rope 60, which can be selected as a transmission wheel that can be sleeved with the transmission rope 60, and its specific type can be determined according to the type of the transmission rope 60, for example, It can choose the sheave with steel wire rope for use.

The transmission rope 60 is used for transmission, and in this embodiment, it is a steel wire rope. In other embodiments, it can also be replaced by objects with similar functions.

As shown in FIGS. 1 to 4 , the tensioning device 40 includes a base 44 , a first hook 45 , a first fixed pulley 41 , a second fixed pulley 42 and a third fixed pulley 43 . The shape of the base 44 can be set as required, and it is used for setting the first hook 45 , the first fixed pulley 41 , the second fixed pulley 42 and the third fixed pulley 43 . The first hook 45 is connected to the first hanging point 11 , and its specific structure and load-bearing requirements can refer to known technologies. The first fixed pulley 41 , the second fixed pulley 42 and the third fixed pulley 43 are used to tension the transmission rope 60 to form a pulley structure for transmission. The first fixed pulley 41 , the second fixed pulley 42 and the third fixed pulley 43 are arranged at intervals, wherein the second fixed pulley 42 is arranged between the first fixed pulley 41 and the third fixed pulley 43 .

Described chain 22 and described transmission rope 60 are used for transmission, and its setting mode is as follows:

As shown in Figures 1 to 4, the middle part of the chain 22 is sheathed on the main sprocket 23, and one end of the chain 22 goes around the first transmission wheel 311 and the first slave sprocket 24 in sequence to connect with One end of the transmission rope 60 is connected; the other end of the chain 22 goes around the fourth transmission wheel 512 and the second slave sprocket 25 in turn to connect with the other end of the transmission rope 60 . When one end of the transmission rope 60 was connected with the chain 22, its other end walked around the first fixed pulley 41, the second transmission pulley 312, the second fixed pulley 42, the fourth transmission pulley 512, and the third fixed pulley 43 successively. The other end of the chain 22 is connected so that a closed chain pulley structure is formed between the tensioning device 40, the chain 22, the transmission rope 60, the first fixing member 30, the second fixing member 50 and the lifting device 20, which can be used for transmission.

During work, one of the fixing parts in the fixing parts, such as the first fixing part 30, is fixed to the wall with the building structure, and then the lifting device 20 is started, and under the action of the driving motor 21, the chain 22, The driving rope 60 is driven to make the whole device except the first fixing part 30 go up and down, and at the same time, another fixing part in the fixing parts, such as the second fixing part 50 is also lifted up and down synchronously. When the overall device is lifted to the required height, separate the original fixing part - the first fixing part 30 from the building structure, and then attach the other fixing part - the second fixing part 50 to the building structure, and then start Lifting device 20 just can realize layer by layer lifting.

In order to describe its working principle in more detail, this embodiment uses promotion as an example to illustrate:

As shown in Figure 2, the entire device is currently on a lower floor, for example, the lowest place is located at 1F. At this point, the first fixture 30 is attached to the building structure and fixed to the wall, and the first fixture 30 is fixed at a higher position, such as the 3F position shown in Figure 2; at this time, start the drive motor 21 to drive Motor 21 forward rotation, clockwise direction as shown in Figure 2, chain 22, transmission rope 60 carry out transmission along the mode shown in Figure 2, thereby drive lifting device 20, second fixing part 50, scaffold main body 10, tensioning device 40 uplift.

When the lifting device 20, the second fixing member 50, the scaffold body 10, and the tensioning device 40 are lifted to one floor, their overall state is as shown in Figure 3: the lowest point of the whole device is at the 2F position, and the second fixing member 50 is at the 4F position; at this time, separate the first fixing part 30 from the building structure, then fix the second fixing part 50 on the building structure at the 4F position, and then drive the motor 21 to reverse in the counterclockwise direction as shown in Figure 3 , so that the chain 22 and the transmission rope 60 are driven in the direction shown in FIG. 3 , driving the lifting device 20 , the first fixing member 30 , the scaffold main body 10 , and the tensioning device 40 to lift upward.

When the lifting device 20, the first fixing member 30, the scaffold body 10, and the tensioning device 40 are lifted to one floor, their overall state is shown in Figure 4: the lowest point of the whole device is at the 3F position, and the first fixing member 30 is at the 5F position, at this time, the second fixing part 50 is separated from the building structure, and then the first fixing part 30 is fixed at the 5F position, and then the above steps are repeated sequentially to carry out layer-by-layer lifting. In this process, the basic idea is to fix the first fixing part 30 and the second fixing part 50 in turn, and then by controlling the forward rotation and reverse rotation of the driving motor 21, the other fixing part and the scaffold main body 10 which are not fixed are lifted in turn. , so as to achieve the purpose of layer-by-layer improvement.

When it is necessary to perform a descending operation, its basic principle is the same as above, and only need to control the direction of rotation of the drive motor 21 when descending is opposite to the direction of rotation during lifting.

Although the present invention has been disclosed through the above embodiments, the scope of the present invention is not limited thereto. Without departing from the concept of the present invention, the above components can be replaced by similar or equivalent elements understood by those skilled in the art.

Claims (7)

1. a kind of attached lifting scaffold lifting gear comprising scaffold main body (10), which is characterized in that it further includes lifting Device (20) is used to carry out the fixed fixing piece of attached wall and tensioning apparatus (40) with building structure, and the fixing piece includes first Fixing piece (30) and the second fixing piece (50), the lifting gear (20) and tensioning apparatus (40) respectively with the scaffold main body (10) it connects, the lifting gear (20) includes driving motor (21) and chain (22), and the chain (22) is by driving electricity Machine (21) drives, and the chain (22) connect with first fixing piece (30) and the second fixing piece (50), and described first fixes Part (30) and the second fixing piece (50) are connected by the transmission rope (60) being stretched on the tensioning apparatus (40), the tensioning dress Set (40), the first fixing piece (30), the second fixing piece (50), transmission rope (60), chain form pulley structure between (22), use When, first fixing piece (30), the second fixing piece (50) can carry out attached wall with building structure by turns and fix, and described first is solid Determining part (30), the second fixing piece (50) can by turns lift under the lifting gear (20) effect.

2. the attached lifting scaffold lifting gear as described in claim 1, which is characterized in that the lifting gear (20) includes Head sprocket (23), the first accessary sprocket wheel (24), the second accessary sprocket wheel (25), first accessary sprocket wheel (24) and the second accessary sprocket wheel (25) point Not She Yu the head sprocket (23) both sides, on first fixing piece (30) be equipped with the first in-line gears (31), described Second fixing piece (50) is equipped with the second in-line gears (51), and the chain (22) is sheathed on the head sprocket (23), and should One end of chain (22) bypass first in-line gears (31) and the first accessary sprocket wheel (24) successively and with the transmission rope (60) One end connection, the other end of the chain (22) bypass second in-line gears (51) and the second accessary sprocket wheel (25) successively and with The other end of the transmission rope (60) connects.

3. the attached lifting scaffold lifting gear as described in claim 2, which is characterized in that the tensioning apparatus (40) includes First fixed pulley (41), the second fixed pulley (42) and third fixed pulley (43), one end and the chain of the transmission rope (60) (22) one end connection, the other end of the transmission rope (60) bypass first fixed pulley (41), the first in-line gears successively (31), the second fixed pulley (42), the second in-line gears (51), third fixed pulley (43) and with the other end of the chain (22) connect It connects.

4. the attached lifting scaffold lifting gear as described in claim 3, which is characterized in that the tensioning apparatus (40) is equipped with Pedestal (44) is equipped with the first suspension hook (45) on the pedestal (44), is set on the top of the scaffold main body (10) or bottom end There are the first sling point (11), first suspension hook (45) to be connect with first sling point (11).

5. the attached lifting scaffold lifting gear as described in claim 4, which is characterized in that in the scaffold main body (10) The other end opposite with tensioning apparatus (40) be equipped with the second sling point (12), the lifting gear (20) be equipped with the second suspension hook (26), second suspension hook (26) connect with second sling point (12).

6. the attached lifting scaffold lifting gear as described in claim 4, which is characterized in that first fixed pulley (41), Second fixed pulley (42) and third fixed pulley (43) are respectively arranged on the pedestal (44), and the second fixed pulley (42) is positioned at described Between first fixed pulley (41) and third fixed pulley (43).

7. the attached lifting scaffold lifting gear as described in claim 2, which is characterized in that first in-line gears (31) The first driving wheel (311) including coaxial arrangement and the second driving wheel (312), second in-line gears (51) include coaxially setting The third driving wheel (511) and the 4th driving wheel (512) set, the chain (22) are same around the first in-line gears (31) and second When shaft gear (51), it is set around on first driving wheel (311) and third driving wheel (511)；The transmission rope (60) around When crossing the first in-line gears (31) and the second in-line gears (51), haves mercy on and be set to the second driving wheel (312) and the 4th driving wheel (512) on.