CN109025388B - A construction device and construction method for a movable and expandable canopy that can be opened - Google Patents

Abstract

The invention provides a construction device and a construction method for a movable and expandable openable canopy. The device includes: an intermediate roof truss system, an extended roof truss system, an intermediate rail system and a free movement system, wherein: the intermediate roof truss system consists of an intermediate rail The system supports and moves along the middle track in the middle track system along with the middle track system; the extended roof truss system is fixed on the free moving system, overlapped on the middle roof truss system, and moves telescopically along the middle roof truss system; the method is based on all the The device, through which a movable and openable canopy equipment can be built on the construction site, the impact of high temperature in summer on the construction progress can be reduced, and the impact of rainwater on the foundation pit and construction personnel and equipment on both sides of the foundation pit can be reduced. In addition, it can also provide convenience for the gantry crane lifting equipment by controlling the opening of the canopy, solve the problem of affecting the operation of the gantry crane after the installation of the canopy, improve the efficiency and shorten the construction period.

Description

A construction device and construction method for a movable and expandable canopy that can be opened

technical field

The invention relates to a construction device and a construction method in the technical field of construction engineering, in particular to a construction device and a construction method of a movable and expandable canopy that can be opened.

Background technique

Construction operations such as excavation of foundation pits are usually required in the process of urban underground space development. Due to the advantages of low construction cost and mature technology, the open cut method has gradually become one of the most commonly used methods in foundation pit excavation. Because the open-cut foundation pit excavation is often carried out outdoors, it is more obviously affected by factors such as weather. In areas with abundant rainfall such as the southeast coast, the annual precipitation is often more than 1000mm and the rainy season lasts for a long time, which is easy to cause water accumulation in the pit and thus affect the safety of the foundation pit. In addition, the high temperature in summer also exposes the open-cut foundation pit to the scorching sun, which will significantly affect the operation time and reduce the construction efficiency. Therefore, setting up a canopy above the open-cut foundation pit for rain protection and shading can effectively improve the construction environment. However, the erection of the canopy will affect the operation of the gantry crane. Therefore, in order to ensure the safe and efficient implementation of the excavation of the foundation pit, it is necessary to develop a device that adapts to the specific difficulties in the excavation process.

After searching the prior art documents, it is found that the Chinese patent number is: 201620580731.2, the patent publication number is: 205713167U, and the patent name is: a movable canopy for the construction of the main structure of a subway station. The patent reads as: "A movable canopy for the construction of the main structure of a subway station to reduce the impact of the external environment on the construction work and ensure the starting conditions of the shield. It includes a canopy and a track. The shed includes at least one inner canopy and an outer canopy composed of a steel truss and a top rain-shielding layer, and the rails include parallel inner and outer rails fixed on the reinforced concrete crown beams on both sides of the foundation pit. The lower ends of the steel trusses on both sides of the canopy and the outer canopy are fixedly provided with rollers corresponding to the inner track and the outer track respectively." Although the above-mentioned patent solves the disadvantage that the traditional canopy cannot be moved, it saves the cost of assembling and moving the canopy. However, when the construction sites on both sides of the foundation pit require rain protection or shading, additional canopies still need to be built separately, which is time-consuming and labor-intensive, and will cause trouble when large machinery is hoisted in and out of the foundation pit through the gantry.

SUMMARY OF THE INVENTION

Aiming at the defects in the prior art, the purpose of the patent of the present invention is to provide a construction device and method that utilizes a movable openable canopy for sunshade and rain protection without affecting the work of the gantry crane. The movable and openable canopy equipment can reduce the impact of high temperature in summer on the construction progress, and reduce the impact of rainwater on the foundation pit and the construction personnel and equipment on both sides of the foundation pit. The lifting equipment provides convenience, solves the problem of affecting the operation of the gantry crane after the installation of the canopy, improves the efficiency and shortens the construction period.

According to one aspect of the present invention, there is provided a construction device for a movable and expandable openable canopy, the construction device includes: an intermediate roof truss system, an extended roof truss system, an intermediate rail system and a free movement system, wherein the intermediate roof truss system is composed of The middle track system is supported and moves along the middle track in the middle track system along with the middle track system; the extended roof truss system is fixed on the free moving system and overlapped on the middle roof truss system, the The extended roof truss system is telescopically moved along the intermediate roof truss system through the free movement system;

The middle roof truss system is composed of steel columns, fixed roofs and movable roofs, the expanded roof truss system is composed of inner steel columns, outer steel columns and expanded trusses, and the middle rail system is composed of middle rails, middle rail beams and It consists of intermediate track wheels, and the free movement system consists of extended track beams, extended track wheels and sliding supports; among which:

The lower end of the steel column of the middle roof truss system is fixedly connected with the middle rail wheel of the middle rail system, the upper end of the steel column is welded and fixed with the fixed roof, and the movable roof is arranged on the fixed roof and can move in the parallel direction of the fixed roof, so as to realize the opening or closing of the canopy;

The lower end of the inner steel column of the expanded roof truss system is fixedly connected to the expanded track wheel, the lower end of the outer steel column is welded and fixed to the sliding support of the free moving system, and the two ends of the expanded truss are welded and fixed to the the upper ends of the inner steel column and the outer steel column;

The middle track wheel of the middle track system is in engagement with the middle track, and the middle track is fixed on the middle track beam;

The two ends of the extended rail beam of the free-moving system are welded to the middle position of the two steel columns, the extended rail wheel is engaged with the extended rail beam, and the extended rail wheel at the lower end of the inner steel column is in contact with the outer side. The sliding support at the lower end of the steel column cooperates to realize the horizontal and vertical movement of the expansion truss. The movement in the horizontal direction of the entire construction device is realized.

Preferably, in the intermediate roof truss system: the fixed roof is composed of a fixed transverse canopy steel frame beam, a driving part, a driving gear, a transmission gear, a transmission chain, and a fixed roof panel; the movable roof is composed of a follower gear, a movable Steel frame beams and movable roof panels; of which:

The driving component is installed on the upper end of the fixed transverse canopy steel frame beam, and has a locking function; the driving gear is hingedly connected with the driving component; the driving gear and the transmission chain are in meshing contact; The lower end of the horizontal canopy steel frame beam is engaged with the transmission chain; the fixed roof panel is fixed on the fixed horizontal canopy steel frame beam; At the end, the follower gear is engaged with the transmission chain; the movable roof panel is installed on the upper side of the movable steel frame beam;

The driving component drives the driving gear, the driving gear drives the transmission gear through the transmission chain, the transmission gear drives the follower gear through the transmission chain, and then drives the movable steel frame beam and the movable roof panel to realize the opening/closing of the canopy.

Preferably, in the middle roof truss system: steel columns are selected from the same size of corbel columns, and a corbel column platform is welded at the same height as the inner steel column of the extended roof truss system for welding the extended track beams.

More preferably, a hook for pulling the cable is installed on the corbel column.

Preferably, in the middle roof truss system: the top of the upper steel pipe for fixing the transverse canopy steel frame beam is welded with a bracket for installing the driving component, and the bottom end of the fixed transverse canopy steel frame beam is welded with a bracket and a bearing for installing the transmission gear .

Preferably, in each group of the intermediate roof truss systems: the fixed roof is in the shape of a herringbone as a whole, the two branches of the herringbone are at an angle of 2 to 5° with the ground, and the horizontal span of the fixed roof is the same as the distance between the crown beams of the foundation pit. adapt.

Preferably, in the extended roof truss system: the extended truss is at an angle of 2 to 5° with the ground, the length of the extended truss is less than half the span of the steel frame beam of the fixed transverse canopy; the extended truss is parallel to the adjacent branch of the fixed roof.

Preferably, in the extended roof truss system: the extended track beam is made of galvanized high carbon steel, and the length of the extended track beam is the same as the span of the fixed transverse canopy steel frame beam.

Preferably, in the intermediate rail system: the intermediate rail wheel is provided with a brake locking mechanism.

Preferably, the free movement system is composed of sliding supports on the outer steel columns, extended track beams and extended track wheels erected on the middle roof truss, wherein:

The sliding support is used as a base for expanding the roof truss system by combining a plurality of universal wheels and a flat plate, wherein the flat plate is a square steel thick plate with a length of 200-400 mm, and the thickness of the flat plate is 20-40 mm.

More preferably, at the four corners of the bottom of the flat plate, each corner is welded and fixed with a small universal wheel that meets the requirements of load-bearing and movement and has a locking mechanism.

Preferably, the middle track beam is a crown beam in an open-cut foundation pit, the middle track is made of heavy-duty steel track, the lower side of the middle track is anchored on the track beam as a base, and the upper side of the middle track is connected to the matching track wheel connect.

Preferably, a group of the roof truss system and the moving system as a whole, namely the extended roof truss system, the intermediate roof truss system, the free movement system and the intermediate rail system as a whole, the spacing between each group is 3000-6000mm, and multiple groups are used.

The working principle of the construction device of the present invention is:

The middle track system is installed on the middle track beam foundation to support the middle roof truss system and provide the track required for the middle roof truss system to move; the middle track wheel is installed on the middle steel column and connected with the middle track to fix the middle The role of the roof truss system and the entire construction device moving on the rails, under the condition that the expansion truss is received to fix the roof, the traction cable in the project pulls the entire construction device to move; the sliding bearings in the expansion rail system and the expansion rail beam support Expand the roof truss system, expand the track wheel and expand the track beam, and the expand track wheel at the lower end of the inner steel column cooperates with the sliding bearing at the lower end of the outer steel column to realize the horizontal and vertical movement of the expanded truss. The sliding support at the lower end of the steel column cooperates with the middle rail wheel at the lower end of the steel column to realize the horizontal movement of the entire construction device. Control the driving components on the steel frame beams of the fixed horizontal canopy, so that the movable roof moves in the parallel direction with the steel frame beams of the fixed horizontal canopy, so as to facilitate the use of gantry cranes to hoist large equipment in and out, and make the whole construction work. The device is driven by engineering machinery.

According to another aspect of the present invention, there is provided a construction method based on the above-mentioned device, wherein the method defaults that the extended roof truss system is opened, the movable roof is in a closed state, and the driving components are in a locked state;

The construction method includes the following steps:

The first step is to move the intermediate roof truss system and the extended roof truss system of the canopy to the construction position, specifically:

1) Open the brake locking mechanism of the sliding support;

2) Push the extended roof truss system to the innermost side of the intermediate roof truss system, so that the extended truss and the fixed roof overlap;

3) Install the cable driven by the construction machinery on the hook of the corbel column;

4) Open the brake locking mechanism of the middle rail wheel;

5) Adjust the cable to be parallel to the middle track to ensure that the entire construction device translates in the parallel direction of the middle track;

6) Pull the corbel column through the cable parallel to the middle track, so that the whole construction device moves along the middle track;

7) After reaching the designated position, release the cable connected with the corbel column, and lock the brake locking mechanism of the middle rail wheel;

The second step is to adjust the extended roof truss system to the specified position, specifically:

1) When the rainfall is less than 10mm/24h and the temperature is lower than 30 degrees, and there is no need to use a gantry crane to hoist out and hoist external equipment, move the extension truss to the innermost side of the intermediate roof truss system, and then lock the brake of the sliding bearing. locking mechanism;

2) When the rainfall is greater than 10mm/24h or the temperature is greater than 30 degrees, and the extended roof truss system needs to protect from rain or summer, pull the extended truss outward to the outermost that the extended track wheel can reach, and finally lock the sliding support. The brake locking mechanism of the seat;

3) When the external equipment is hoisted in or hoisted out, pull the extended roof truss system to the outermost side, and lock the brake locking mechanism of the sliding support;

4) When the extended roof truss system needs to pass vehicles and the gantry crane does not need to be hoisted in or out, push the extended roof truss system to the innermost side, and lock the brake locking mechanism of the sliding bearing;

The third step is to adjust the movable roof to the specified position, specifically:

1) When the external equipment needs to be hoisted in and out by the gantry crane, first move the expansion truss to the 3) position of the second step, turn on the driving parts, and control the rotation direction of the two driving parts on the steel frame beam of the horizontal canopy, Make the left and right movable roofs move down in parallel and cover the fixed roof panels respectively. When the movable roof completely covers the fixed roof panels, lock the driving parts and stop the driving parts;

2) When the rainfall is greater than 10mm/24h or the air temperature is greater than 30 degrees, and there is no need to hoist in or out the external equipment, first adjust the rotation direction of the driving part to the reverse of the third step 1), release the motor lock and open it The driving part makes the left and right movable roofs move up and covers their initial positions respectively, locks the driving part and stops the driving part.

Compared with the prior art, the present invention has the following beneficial effects:

Aiming at the characteristics of long outdoor construction time, high requirements on construction period and great influence by weather, the present invention realizes a canopy without loading and unloading during construction on a continuous section by making a movable and expandable canopy, except covering the main construction area. It can also cover the expansion area, and can be folded under the middle roof truss when the vehicle is passing. Through the movement of the roof panel, it can provide space for the hoisting and hoisting of large equipment.

The invention also provides sunshade for construction personnel in outdoor projects such as foundation pits and its expansion area, reduces the impact of rainfall on construction personnel and equipment during the construction process, reduces the construction time used for loading and unloading the canopy, and facilitates the hoisting of equipment. It can be lifted out to reduce potential safety hazards, improve production efficiency, meet the needs of engineering construction and vehicle transportation, and meet the requirements of construction equipment on the construction site, and has a good engineering application prospect.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is the front view of the whole structure of the movable expansion opening type canopy of a preferred embodiment of the present invention;

2 is a front view of a fixed roof and a movable roof of an intermediate roof truss system according to a preferred embodiment of the present invention;

3 is a top view of a fixed roof and a movable roof of a preferred embodiment of the present invention;

Fig. 4 is the structural representation of the extended track beam and the extended track wheel of a preferred example of the present invention;

FIG. 5 is a schematic diagram of the structure of the sliding support of the free movement system according to a preferred example of the present invention.

In the picture:

1 is the sliding bearing, 2 is the outer steel column, 3 is the expansion truss, 4 is the corbel column, 5 is the middle rail wheel and the middle rail, 6 is the middle rail beam, 7 is the extension rail beam, 8 is the transmission gear, 9 is the motor, 10 is the movable roof, 11 is the transmission chain, 12 is the fixed roof, 13 is the inner steel column, 14 is the one-way sliding support, 15 is the follow-up gear, 16 is the transverse canopy steel frame beam, 17 is the movable roof panel, 18 is the driving gear, 19 is the roof panel of the fixed roof, 20 is the track wheel on the one-way sliding support.

Detailed ways

The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

As shown in Figures 1-5, a movable and expandable construction device for an openable canopy includes: a sliding support 1, an outer steel column 2, an expansion truss 3, a corbel column 4, an intermediate rail wheel and an intermediate rail 5. Intermediate track beam 6, extended track beam 7, transmission gear 8, motor 9, movable roof 10, transmission chain 11, fixed roof 12, inner steel column 13, one-way sliding support 14, follow-up gear 15 , transverse canopy steel frame beam 16, movable roof panel 17, driving gear 18, roof panel 19 for fixed roof, track wheel 20 on the one-way sliding bearing; the link relationship is:

The sliding support 1 is welded on the lower end of the outer steel column 2; the two ends of the expansion truss 3 are respectively welded on the outer steel column 2 and the inner steel column 13; the lower end of the corbel column 4 is welded on the middle rail wheel, and the middle rail wheel is engaged On the middle track; the middle track is installed on the middle track beam 6 through road spikes; the two ends of the extended track beam 7 are respectively fixed on the two corbel columns 4 by bolts; the one-way sliding support 14 is welded on the inner steel column 13 The lower end of the frame is engaged with the extended track beam 7 through the track wheel 20 on the one-way sliding support; the fixed roof 12 is welded and connected to the upper end of the corbel column 5; the transmission gear 8 and the motor 9 are fixed on the fixed roof by screws. 12; the movable roof 10 is connected with the transmission chain 11 through the follower gear 15, and the transmission chain 11 is engaged with the transmission gear 8 and the driving gear 18, and the driving gear 18 is fixed with the motor 9.

As a preferred embodiment, in each set of the intermediate roof truss systems, the fixed roof 12 forming the top of the roof truss is in a herringbone shape as a whole, and the two branches of the herringbone are respectively 3 degrees from the ground, and the level of the fixed roof 12 is The span is 8000mm; the vertical steel columns of the middle roof truss system are all I-beam corbel columns 4 of the same size. The bottom column of corbel column 4 is 3000mm long and 450mm wide, and the height is the same as that of the inner steel column 13 of the extended roof truss system. There is a right-angled trapezoidal corbel column platform with a width of 100mm and a length equal to the width of the corbel column 4; the extended rail beam 7 made of galvanized high carbon steel is welded on the corbel column platform, and the length of the extended rail beam 7 is fixed and fixed. The roof 12 has the same span and a width of 30mm. The upper part of the corbel column 4 is made of I-beam with a length of 1200mm and the same width and lower end. The upper and lower ends are connected by welding. The total height of the corbel column 4 is 4500mm. Steel plates are reinforced every 300mm in the height direction of the corbel column 4, and a hook for installing the traction cable is provided at the outermost corbel column 4 of the overall roof frame at a height of 1000mm.

As a preferred embodiment, the upper and lower parts of the transverse canopy steel frame beam 16 are made of steel pipes with a diameter of 70 mm to form a skeleton for fixing the upper and lower parts of the roof, wherein: the upper part of the transverse canopy steel frame beam 16 is The top end is welded with the bracket for installing the motor 9, the bottom end of the lower part of the transverse canopy steel frame beam 16 is welded with the bracket and the bearing for installing the transmission gear 8, and the middle of the transverse canopy steel frame beam 16 is made of a longitudinal steel pipe with a diameter of 40mm and a length of 100mm and a bearing. Diameter 40mm, length 200mm oblique steel pipe, and each oblique steel pipe corresponds to a longitudinal steel pipe, two oblique steel pipes and a longitudinal steel pipe form an isosceles triangle with the longitudinal steel pipe as the center line, this combination forms a horizontal The web of the canopy steel frame beam 16.

As a preferred embodiment, the power of the motor 9 is above 2200kw, and its speed can be adjusted and the rotation direction can be adjusted, and it can be locked;

The motor 9 is welded on the bracket on the top of the upper end of the steel frame beam 16 of the transverse canopy for installing the motor 9 .

As a preferred embodiment, the driving gear 18 adopts a gear with a radius of 60 mm, and the specification of the number of teeth is adapted to the transmission chain 11 .

As a preferred embodiment, the radius and the number of teeth of the transmission gear 8 are the same as those of the driving gear 18 .

As a preferred embodiment, the roof panel 19 of the fixed roof adopts a 12mm thick color steel plate roof panel, and the middle of the roof panel is reinforced with 400mm galvanized high carbon steel crimped channel purlins; the roof panel 19 of the fixed roof is reinforced. The covering length is half the length of the transverse canopy steel frame beam 16 .

As a preferred embodiment, the movable steel frame beams of the movable roof 10 are parallel to the transverse canopy steel frame beams 16 of the fixed roof 12, and are installed above the fixed roof 12; the movable roof 10 The form is the same as the transverse canopy steel frame beam 16 , and the size is half of the transverse canopy steel frame beam 16 .

As a preferred embodiment, the movable roof panel 17 is a color steel plate roof, and its thickness is 10mm;

The middle of the movable roof panel 17 is reinforced with 400mm long galvanized high carbon steel crimping channel steel purlins; the upper and lower ends of the side surfaces of the movable roof panel 17 are respectively installed with follower gears 15 .

As a preferred embodiment, the parameters of the radius and the number of teeth of the driven gear 15 are the same as those of the driving gear 18 .

As a preferred embodiment, a set of roof truss system and moving system as a whole, namely extended roof truss system, intermediate roof truss system, free movement system and whole intermediate rail system, the distance between each set is 6000mm, and 4 sets are used.

As a preferred embodiment, the expansion truss 3 is at an angle of 3 degrees to the ground and is parallel to the adjacent herringbone branch of the fixed roof 12 , and the length of the expansion truss 3 is less than half of the span of the transverse canopy steel beam 16 , the specific length L has the following relationship from the farthest horizontal distance S and the inclination angle θ between the sliding support 1 and the middle rail beam 6 on the adjacent side:

As a preferred embodiment, the inner steel column 13 is selected from a cylindrical steel pipe with a diameter of 20 mm and a length of 1300 mm.

As a preferred embodiment, the outer steel column 2 is a hollow circular tube with a diameter of 150 mm and a height of 3500 mm.

As a preferred embodiment, the expansion truss adopts the same form as the steel frame beam 16 of the transverse canopy.

As a preferred embodiment, the middle track beam 6 is a crown beam in the open-cut foundation pit as the track beam, the middle track selects a heavy-duty steel track, and the lower side of the middle track is anchored on the middle track beam 6 as a base, and the middle track is anchored on the middle track beam 6 as a base. The upper side of the track is connected with the matching middle track wheel, and the middle track wheel can be locked.

As a preferred embodiment, the free movement system is composed of a sliding support 1 on the outer steel column 2, an extended track beam 7 erected on the corbel column 4 in the intermediate roof truss system, and a one-way sliding support 14; wherein :

The sliding support 1 adopts a combination of a plurality of universal wheels and a flat plate as the base of the expansion part, and the flat plate is a square metal thick plate with a length of 200 mm and a thickness of 30 mm; Fillet welding to fix a small universal wheel that meets the requirements;

Described expansion track beam 7 selects galvanized high carbon steel slide rail, and its length and horizontal canopy steel frame beam 16 span the same, and its width is 20-30mm;

The one-way sliding support 14 is welded on the lower end of the inner steel column 13, and the track wheels 20 on the one-way sliding support adopt four groups to form an extended track wheel, the diameter of the track wheels 20 is 15mm, and each track wheel 20 All have rubber treads, and the extended track wheel bears more than 400kg and is equipped with a locking device.

Further, adopt the construction method of the above-mentioned construction device, comprising the following steps:

(The default is that the extended roof truss system is open, the movable roof is closed, and the motor is locked)

When the construction of a certain section is completed, move the construction device to the next construction position,

The first step is to move the intermediate roof truss system and extension roof truss system of the canopy to the construction position, specifically:

1) Open the brake locking mechanism of the sliding support 1;

2) Use manpower to push the extension roof truss system to coincide with the middle roof truss system;

3) Install the cable driven by the construction machinery on the hook of the corbel column 4;

4) Open the brake locking mechanism of the middle rail wheel;

5) The adjustment cable is parallel to the middle rail 5 to ensure that the entire device translates in the parallel direction of the middle rail 5;

6) Pull the corbel column 4 of the middle roof truss through the cable parallel to the middle track 5, so that the whole device moves along the middle track 5;

7) After reaching the designated position, release the cable connected with the corbel column 4, and lock the brake of the middle rail wheel;

The second step is to adjust the extended roof truss system to the specified position, specifically:

1) When the rainfall is less than 10mm/24h and the temperature is lower than 30 degrees, and the gantry crane is not required to be lifted out of the lifting device, lock the brake locking mechanism of the sliding support 1;

2) When the rainfall is greater than 10mm/24h or the temperature is greater than 30 degrees, and the expansion truss 3 needs to protect from rain or summer, push the expansion truss 3 to a suitable position by manpower, and finally lock the brake of the sliding bearing 1. mechanism;

3) When there is a hoisting and hoisting device, adjust the extension truss 3 to the outermost side, and lock the brake of the sliding support 1;

4) When the expansion truss 3 needs to pass vehicles and does not need to be hoisted in and out of the gantry crane, push the expansion truss 3 to the innermost side, and lock the brake locking mechanism of the sliding support 1;

The third step, adjust the movable roof panel 17 to the designated position, specifically:

1) When the equipment needs to be hoisted in and out by the gantry crane, first move the expansion truss 3 to the 3) position of the second step, turn on the motor 9, and control the rotation of the two motors 9 on the transverse canopy steel frame beam 16. The left and right movable roofs 10 are moved downward in parallel and cover the fixed roof panel 19 respectively. When the movable roof 10 completely covers the fixed roof panel 19, the motor 9 is locked. and stop motor 9;

2) When the rainfall is greater than 10mm/24h or the temperature is greater than 30 degrees, and there is no need to hoist in and out of the device, first adjust the rotation direction of the motor 9 to the reverse of the third step 1), lock the motor 9 into contact and turn on the motor. 9. Make the left and right movable roofs 10 move up and cover their initial positions respectively, lock the motor 9 and stop the motor 9 .

The working principle of the present invention is:

The middle track system is installed on the middle track beam 6, supports the middle roof truss system and provides the track required for the middle roof truss system to move. The middle track wheel is installed on the middle corbel column 4 and connected with the middle track 5 to fix the middle roof truss system. And the effect of the whole construction device moving on the middle rail 5, when the expansion truss 3 is received into the intermediate roof truss system, the traction cable in the project pulls the entire construction device to move, and the sliding bearing 1 and the expansion rail beam 7 in the expansion rail system are moved. Support the extended roof truss system and allow the extended roof truss system to move in both horizontal and vertical directions; after reaching the designated construction position, push the extended truss 3 and let it reach the designated construction position; by controlling the horizontal canopy steel frame The motor 9 on the beam 16 allows the movable roof panel 17 to move in a parallel direction with the transverse canopy steel frame beam 16, so as to facilitate the lifting and lifting of large equipment, and allow the entire construction device to be driven by engineering machinery .

Aiming at the characteristics of long outdoor construction time, high requirements on construction period and great influence by weather, the present invention realizes a canopy without loading and unloading during construction on a continuous section by making a movable and expandable canopy, except covering the main construction area. It can also cover the expansion area, and can be folded under the middle roof truss when the vehicle is passing. Through the movement of the roof panel, it can provide space for the hoisting and hoisting of large equipment. This patent also provides sunshade for construction personnel in outdoor projects such as foundation pits and its expansion areas, reduces the impact of rainfall on construction personnel and equipment during the construction process, reduces the construction time for canopy loading and unloading, and facilitates the hoisting of equipment. It can be lifted out to reduce potential safety hazards, improve production efficiency, meet the needs of engineering construction and vehicle transportation, and meet the requirements of construction equipment on the construction site, and has a good engineering application prospect.

All the drawings of the above-mentioned embodiments are only for the convenience of explaining the technical content of the present invention; the technical features such as the numbers, the positions of the parts, the interrelationships between the parts, and the dimensions of the parts used to constitute the best embodiment do not constitute the The limitation on the technical solution itself should extend to the entire field covered by the technical field.

The specific embodiments of the present invention are described above. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and those skilled in the art can make various variations or modifications within the scope of the claims, which do not affect the essential content of the present invention.

Claims (9)

1. The utility model provides a construction equipment of canopy can be opened to portable expansion, its characterized in that, construction equipment includes: the roof truss system comprises a middle roof truss system, an expanded roof truss system, a middle track system and a free moving system, wherein the middle roof truss system is supported by the middle track system and moves along a middle track in the middle track system along with the middle track system; the expandable roof truss system is fixed on the free moving system and is lapped on the middle roof truss system, and the expandable roof truss system moves telescopically along the middle roof truss system through the free moving system;

the middle roof truss system consists of steel upright posts, fixed roof roofs and movable roof roofs, the expanded roof truss system consists of inner side steel upright posts, outer side steel upright posts and expanded trusses, the middle track system consists of middle tracks, middle track beams and middle track wheels, and the free moving system consists of expanded track beams, expanded track wheels and sliding supports; wherein:

the lower end of a steel upright post of the middle roof truss system is fixedly connected with a middle track wheel of the middle track system, the upper end of the steel upright post is fixedly welded with the fixed roof, and the movable roof is arranged on the fixed roof and can move in the direction parallel to the fixed roof, so that the opening or closing of the canopy is realized;

the lower end of an inner steel upright post of the expansion roof truss system is fixedly connected with the expansion track wheel, the lower end of the outer steel upright post is fixedly welded with a sliding support of the free movement system, and two ends of the expansion truss are respectively fixedly welded to the upper ends of the inner steel upright post and the outer steel upright post; the sliding support is provided with a brake locking mechanism;

the middle rail wheel of the middle rail system is in meshed contact with the middle rail, and the middle rail is fixed on the middle rail beam; the middle rail wheel is provided with a brake locking mechanism;

the two ends of an expanded track beam of the free moving system are welded at the middle positions of two steel stand columns, expanded track wheels are meshed and contacted with the expanded track beam, the expanded track wheels at the lower ends of the inner steel stand columns are matched with sliding supports at the lower ends of the outer steel stand columns so as to realize the horizontal and vertical movements of the expanded truss, and meanwhile, the sliding supports at the lower ends of the outer steel stand columns are matched with middle track wheels at the lower ends of the steel stand columns so as to realize the horizontal movement of the whole construction device;

the free moving system comprises an extended track beam and an extended track wheel, wherein the extended track beam and the extended track wheel are erected on a sliding support on an outer steel upright post and a middle roof truss, and the free moving system comprises: the sliding support is used as a base for expanding a roof truss system in a mode of combining a plurality of universal wheels and a flat plate, and the four corners of the bottom of the flat plate are respectively welded with a small universal wheel which meets the bearing and moving requirements and is provided with a locking mechanism.

2. A mobile expandable weather shelter construction apparatus as claimed in claim 1 wherein in the intermediate roof truss system: the fixed roof consists of a fixed transverse canopy steel frame beam, a driving part, a driving gear, a transmission chain and a fixed roof panel, and the movable roof consists of a follow-up gear, a movable steel frame beam and a movable roof panel; wherein:

the driving part is arranged at the upper end of the fixed transverse canopy steel frame beam and has a locking function; the driving gear is hinged with the driving part; the driving gear is meshed and contacted with the transmission chain; the transmission gear is hinged to the lower end of the fixed transverse canopy steel frame beam and is meshed and contacted with the transmission chain; the fixed roof board is fixed on the fixed transverse canopy steel frame beam; the follow-up gears are mounted at the upper end and the lower end of the movable steel frame beam in a hinged mode and are in meshed connection with the transmission chain; the movable roof panel is arranged on the upper side of the movable steel frame beam;

the driving component drives the driving gear, the driving gear drives the transmission gear through the transmission chain, the transmission gear drives the follow-up gear through the transmission chain, and then the movable steel frame beam and the movable roof panel are driven, and the opening/closing of the canopy is achieved.

3. A mobile expandable weather shelter construction apparatus as claimed in claim 1 wherein in the intermediate roof truss system: the steel upright posts are bracket posts with the same size, and bracket post platforms are welded at the equal heights of the steel upright posts on the inner side of the expansion roof truss system and used for welding expansion track beams; and the cow leg column is provided with a hook for pulling a cable.

4. A mobile expandable weather shelter construction apparatus as claimed in claim 1 wherein in the intermediate roof truss system: the top end of the upper steel pipe for fixing the transverse canopy steel frame beam is welded with a support for installing a driving part, and the bottom end of the transverse canopy steel frame beam is welded with a support and a bearing for installing a transmission gear.

5. A mobile expandable weather shelter as claimed in any one of claims 1 to 4, wherein each of the intermediate roof truss systems is: the whole fixed roof is in a herringbone shape, two branches of the herringbone shape are respectively in an angle of 2-5 degrees with the ground, and the horizontal span of the fixed roof is adapted to the distance between the top beams of the foundation pit.

6. A movable expandable canopy construction device as claimed in claim 5, wherein in the expandable roof truss system: the expansion truss and the ground form an angle of 2-5 degrees, and the length of the expansion truss is less than half of the span of the fixed transverse canopy steel frame beam; the expansion truss is parallel to the branch of the adjacent fixed roof.

7. A mobile expandable canopy construction device as claimed in any one of claims 1 to 4 wherein in the expandable roof truss system: the expanded track beam is made of galvanized high-carbon steel, and the length of the expanded track beam is the same as the span of the fixed transverse canopy steel frame beam.

8. A construction equipment of movable expandable weather shed according to claim 1, wherein the sliding support is a base of an expandable roof truss system by a plurality of universal wheels and flat plate combinations, wherein: the flat plate is made of a square steel thick plate, and the thickness of the flat plate is 20 mm-40 mm.

9. A method of constructing a movable expandable openable canopy using the construction apparatus as claimed in any one of claims 1 to 8, wherein the method defaults to an expanded roof truss system expanded with the movable roof in a closed state and the driving means in a locked state;

the method comprises the following steps:

the method comprises the following steps of firstly, moving a middle roof truss system and an expansion roof truss system of the canopy to a construction position, specifically:

1) opening a brake locking mechanism of the sliding support;

2) pushing the expansion roof truss system to the innermost side of the middle roof truss system to enable the expansion truss and the fixed roof to be overlapped;

3) mounting a cable rope driven by an engineering machine on a hook of the cow leg column;

4) opening a brake locking mechanism of the middle rail wheel;

5) the adjusting cable is parallel to the middle rail so as to ensure that the whole construction device translates in the direction parallel to the middle rail;

6) the cow leg column is pulled by the cable parallel to the middle rail, so that the whole construction device moves along the middle rail;

7) after the track wheel reaches a designated position, a cable connected with the bracket column is released, and a brake locking mechanism of the middle track wheel is locked;

secondly, adjusting the expansion roof truss system to a specified position, specifically:

1) when the rainfall is less than 10mm/24h and the air temperature is lower than 30 ℃, and external equipment does not need to be hoisted out or into by using a gantry crane, moving the expansion truss to the innermost side of the middle roof truss system, and then locking a brake locking mechanism of the sliding support;

2) when the rainfall is more than 10mm/24h or the air temperature is more than 30 ℃, and the expanding roof truss system has the requirement of rain shielding or summer heat shielding, the expanding truss is pulled outwards to the outermost side where the expanding track wheels can reach, and finally the brake locking mechanism of the sliding support is locked;

3) when external equipment is hoisted in or out, the expanded roof truss system is pulled outwards to the outermost side, and the brake locking mechanism of the sliding support is locked;

4) when the expanded roof truss system needs to pass through vehicles and does not need to be hoisted in and out by a gantry crane, the expanded roof truss system is pushed to the innermost side, and a brake locking mechanism of the sliding support is locked;

thirdly, adjusting the movable roof to a specified position, specifically:

1) when external equipment needs to be hoisted in and out through a gantry crane, firstly moving the expansion truss to the position 3) in the second step, starting the driving part, respectively enabling the left movable roof and the right movable roof to move downwards in parallel and cover the fixed roof by controlling the rotating directions of the two driving parts on the transverse canopy steel frame beam, and locking the driving part and stopping the driving part when the movable roof completely covers the fixed roof;

2) when the rainfall is more than 10mm/24h or the air temperature is more than 30 ℃ and the external equipment does not need to be hung in or out, the rotating direction of the driving part is firstly adjusted to be the reverse direction of the third step 1), the motor is locked and released, the driving part is opened, the left and the right movable roofs are respectively enabled to move upwards and cover the initial positions of the movable roofs, and the driving part is locked and stopped.

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