CN101670994A - Lifting working platform for construction - Google Patents

Abstract

The invention discloses a construction elevating work platform, which belongs to a high-altitude operation device. In the prior art, it is inconvenient and inefficient to carry out high-altitude operations on the outer walls of existing buildings. A lifting and crawling device and a supporting structure and a lifting device are arranged above the lifting and crawling device, and the working platform is connected to the lifting and crawling device through a horizontal telescopic mechanism. Such a structure does not have a permanent foundation and is not limited by the foundation conditions of the site. It can cross obstacles, is easy to build on the construction site, and has high operating efficiency. Therefore, no matter how irregular the surface of the construction object is, the working platform can reach it for operation.

Description

construction elevating work platform

technical field

The invention belongs to a high-altitude operation device, in particular to a high-altitude construction elevating work platform.

Background technique

In order to achieve the strategic goal of energy conservation and emission reduction, the country has put forward mandatory regulations for adding insulation layers to the exterior walls of buildings. However, construction equipment has become a bottleneck in the promotion of this project. At present, scaffolding is mainly used for construction, which has serious potential safety hazards. Safety accidents caused by scaffolding collapse occur from time to time, and none of the traditional construction equipment can meet the requirements of construction characteristics. The main difficulties are as follows:

1. Many buildings adopt a sloping roof structure, and it is impossible to hang the lifting working device from the roof for construction work, or it is barely suspended but the mobile installation is very difficult, labor-intensive and time-consuming, and the operating efficiency is extremely low.

2. Due to the short period of the external wall insulation construction, it is impossible to set up a permanent foundation by using equipment that is lifted from the ground, and the installation can only be performed on the basis of the site;

3. The external wall insulation construction is the final stage of wall surface construction. Wall support devices connected by bolts and other methods are generally not allowed on the wall. For construction equipment with a height of more than 10 meters, it is difficult to maintain the stability of the whole machine;

4. The work site is relatively complex, with soft ground, hard ground, and ground that may change at any time;

5. For the external wall insulation construction of existing buildings, there are still obstacles such as seedlings, flowers and steps on the ground;

6. The shape of the building is complex, especially where there are recesses and protrusions on the wall, and the requirements for construction equipment are higher.

In addition, similar problems also exist in the renewal of highway billboards, hull welding, rust removal, painting in the shipbuilding industry, and wall renovation of old houses along the street.

Contents of the invention

The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects of inconvenient construction, low efficiency and even difficult implementation of the existing technology for high-altitude operations on the outer walls of existing buildings, and to provide a construction lifting work platform, In order to carry out high-altitude operations on the exterior walls of existing buildings. For this reason, the present invention adopts following technical scheme:

The construction elevating work platform includes a chassis, a column and a working platform, and is characterized in that: the column is fixed on the chassis in an inclined shape, and the column is provided with a lifting and crawling device and a lifting and crawling device above the lifting and crawling device. The supporting structure and the lifting device, the working platform is connected to the lifting and crawling device through a horizontal telescopic mechanism.

The beneficial effects of the present invention are:

1. Use the chassis to support the column, ensure the stability of the lower end of the column, make the column inclined, and lean on the building through the support structure at the upper end of the column, so as to ensure the stability of the column and the center of gravity only shifts to one direction, and the column's The force is always controlled in a specified direction, and it is easy to maintain the stability of the column; such a structure does not set a permanent foundation, is not limited by the foundation conditions of the site, can cross obstacles, is easy to build on the construction site, and has high operating efficiency.

2. The working platform is connected to the lifting and crawling device on the column through the horizontal telescopic mechanism, which can be lifted to an appropriate working height during operation, and can be stretched horizontally, so no matter how irregular the surface of the construction object is, the working platform can reach it , in order to carry out the work.

3. The material can be lifted by the lifting device.

Description of drawings

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

Fig. 2 is the right side view of Fig. 1 .

Fig. 3 is a view along the line A-A of Fig. 1 .

FIG. 4 is an enlarged view of part B of FIG. 1 .

Explanation of symbols in the figure: 1-chassis, 2-column, 3-working platform, 4-lifting and crawling device, 5-supporting structure, 6-lifting device, 7-transverse telescopic mechanism, 8-far end, 9-proximal end , 10-stay cable, 11-rigid support rod, 12-connecting slope, 13-positioning structure, 14-fixing slope, 15-loading part, 16-front support, 17-rear support, 18-intermediate connecting frame , 19-leveling legs, 20-lift block, 21-base section, 22-top section, 23-middle section, 24-fastener.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings of the description.

As shown in Figures 1 and 2, the construction elevating work platform of the present invention includes a chassis 1, a column 2 and a working platform 3. The device 4 and the supporting structure 5 and the lifting device 6 located above the lifting and crawling device 4 , and the working platform 3 are connected to the lifting and crawling device 4 through a transverse telescopic mechanism 7 .

When working, use the chassis 1 to support the column 2 to ensure that the lower end of the column 2 is stable, so that the column 2 is inclined, and the upper end of the column 2 is leaned against the building through the support structure 5, thereby ensuring the stability of the column 2 and the center of gravity. Move to one direction, always control the force of the column 2 in a specified direction, easy to maintain the stability of the column; such a structure does not set a permanent foundation, is not limited by the foundation conditions of the site, can cross obstacles, and is easy to construct On-site construction, high operating efficiency; the working platform 3 is connected to the lifting and crawling device 4 on the column 2 through the horizontal telescopic mechanism 7, which can be lifted to an appropriate working height during operation, and can be stretched horizontally, so no matter the surface of the construction object No matter how irregular, the working platform 3 can be reached for operation; the material can be lifted by the lifting device 6 .

The supporting structure 5 wherein, after the column 2 is installed, utilizes the characteristic that the column 2 is force-controlled to the side of the working surface, allowing the top of the column 2 to lean against the fixed building through the supporting structure 5, as an additional measure for safety. The length of the support structure 5 is adjustable (as an adjustable support screw rod), determined according to the distance between the installed complete machine and the wall.

The lifting device 6 is mainly used to transport materials from the ground to the high altitude. The lifting device 6 is suspended on the I-beam, and the front and rear positions can be adjusted as required.

As a further improvement and supplement to the above-mentioned technical solution, the present invention also includes the following additional technical features, so that when implementing the above-mentioned fundamental concept of the present invention, it can be selected according to requirements to enhance the function of the construction elevating work platform:

The chassis 1 includes a far end 8 and a proximal end 9, and the column 2 is fixed on the proximal end 9 of the chassis. At the same time, the column is better supported by the chassis 1, and a stay cable 10 is pulled between the column 2 and the chassis 1 or/and a rigid support rod 11 is connected between the column 2 and the chassis 1 to strengthen the column. stability.

The working platform 3, the supporting structure 5 and the lifting device 6 are located on the side of the column 2 facing away from the far end 8 of the chassis, so that the working platform 3 and the lifting device 6 can be closer to the building for construction, especially if the operator needs to This position is more convenient when working while standing on the work platform.

As shown in Figure 4, the lower end of the column 2 is provided with a connecting inclined surface 12, and the lower end of the connecting inclined surface 12 is fixed with a positioning structure 13 (such as a horizontal round tube welded on the column), and the chassis 1 is provided with a fixed inclined surface 14. The bearing portion 15 at the lower end of the inclined surface 14 , the positioning structure 13 is located on the bearing portion 15 , the connecting inclined surface 12 is attached to the fixed inclined surface 14 and connected by a fastener 24 . During installation, the positioning structure 13 is first placed on the load-bearing part 15, then lifted, and the column 2 is turned around the positioning structure 13 in the load-bearing part until the column is righted, the connecting slope 12 and the fixed slope 14 are fitted together, and finally the fastening 24 is connected, and once connected, the degree of freedom of the column is completely restricted. Such a mechanism facilitates installation and connection.

The chassis 1 is composed of a front support 16, a rear support 17, and an intermediate connection frame 18 connected between the front and rear support. They form an "I" shape (see Figure 3), and the intermediate connection frame 18 is connected in a suspended state. Between the front and rear supports, the upper and lower positions of the intermediate connecting frame 18 can be set according to ground conditions. When there are obstacles such as seedlings on the ground, the intermediate connecting frame 18 is connected with the front and rear supports at a high position as far as possible. When the ground condition is limited, it can be connected with the front and rear supports at a low position, and the intermediate connecting frame can also be made into a telescopic type. When the ground conditions are limited, the distance between the front and rear supports can be changed by telescopic. The rear support also acts as a stabilizer, and counterweights are placed in the rear support according to the stability requirements of the whole machine. The front support and the rear support are provided with leveling legs 19 so as to level the entire chassis. When the leveling legs are used on soft ground, the flange at the lower end of the leveling legs is replaced with a Snap ring, place two circular steel pipes whose length is greater than the width of the whole machine on the ground under the semicircular snap ring. Safe to use on the ground.

The column 2 is provided with a lifting block 20, and the supporting structure 5 and the lifting device 6 are connected to the lifting block 20, so that the supporting structure 5 and the lifting device 6 can be lifted together with the lifting block 20, and during operation, due to the support The structure 5 leans against the building and has a stabilizing effect on the column 2, so the shaking when the hoisting device 6 works can be reduced as much as possible. The height position of the lifting tackle 20 on the column 2 can be fixed in any position according to the height of the building by the track clamping device.

The column 2 is formed by connecting the base section 21, the top section 22 and the middle section 23, and each column section can also be made into a standard section type as required.

Above-mentioned lifting and crawling device 4 and lifting tackle 20 can be arranged according to the hoisting device of the cage of the construction hoist, as the device has a base plate parallel to the column, and a guide wheel is housed on the base plate near the column side (Fig. 1 left side) , the guide wheel and the column cooperate to form the friction pair of the lifting track, and the other side (the right side of Figure 1) is equipped with a lifting motor as the power device for lifting, and the gear on the lifting motor passes through the bottom plate and meshes with the rack on the column, so as to realize Lifting action; install a horizontal telescopic mechanism on the front and rear sides of the lifting mechanism to meet the need for the working platform to work close to the wall; a speed limiter is installed under the lifting motor on the lifting mechanism. Horizontal telescopic mechanism is a scissors type mechanism, is installed on the hoisting mechanism, carries out telescopic control (but according to the horizontal telescopic function of horizontal telescopic mechanism, it can also be other structural forms) with hydraulic oil cylinder.

In addition, the construction elevating work platform of the present invention is equipped with safety monitoring such as overall machine tilt monitoring, light material lifting and load limit monitoring, and rising monitoring when the working platform is extended horizontally, etc., and the functional requirements are realized through sensors and controllers to ensure work safety. .

Claims (8)

1, lifting working platform for construction, comprise chassis (1), column (2) and workplatform (3), it is characterized in that: described column (2) is skewed and is fixed on the described chassis (1), described column (2) is provided with lifting crawling device (4) and is positioned at holding up of this lifting crawling device (4) top and leans on structure (5) and bont (6), and described workplatform (3) is connected on the described lifting crawling device (4) by transversal stretching mechanism (7).

2, lifting working platform for construction according to claim 1, it is characterized in that described chassis (1) comprises far-end (8) and near-end (9), the upper end of described column (2) tilts to the direction away from the far-end (8) of described chassis (1), and drawing between described column (2) and chassis (1) has suspension cable (10) or/and be connected rigid supporting rod (11) between described column (2) and chassis (1).

3, lifting working platform for construction according to claim 2 is characterized in that described column (2) is fixed on the near-end (9) of described chassis (1).

4,, it is characterized in that described workplatform (3), hold up a side that is positioned at described column (2) described dorsad chassis far-end (8) by structure (5) and bont (6) according to claim 2 or 3 described lifting working platform for construction.

5, lifting working platform for construction according to claim 1 and 2, the lower end that it is characterized in that described column (2) is provided with connection inclined-plane (12), the lower end on described connection inclined-plane (12) is fixed with location structure (13), described chassis (1) is provided with constant inclined surface (14) and is positioned at the supporting part (15) of constant inclined surface (14) lower end, described location structure (13) places described supporting part (15), and described connection inclined-plane (12) fits with constant inclined surface (14) and is connected with fastener (24).

6, lifting working platform for construction according to claim 1, it is characterized in that described chassis (1) by preceding bearing (16), rear support (17) and be connected described before middle link span (18) formation between the bearing (16), rear support (17), be provided with leveling supporting leg (19) on bearing before described (16), the rear support (17).

7, lifting working platform for construction according to claim 1 is characterized in that described column (2) is provided with fall block (20), and described holding up by structure (5) and bont (6) is connected on the described fall block (20).

8, lifting working platform for construction according to claim 1 is characterized in that described column (2) is formed by connecting by base section (21), top joint (22) and middle segmentum intercalaris (23).

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