Foldable dustproof awning for building deep foundation pit

Abstract

The utility model relates to the technical field of foundation pit construction dust prevention, and discloses a foldable dustproof awning for a building deep foundation pit, which comprises a plurality of support beams, the plurality of support beams are provided with the same folding top frame, the folding top frame is provided with a dustproof awning net, the folding top frame comprises a plurality of groups of folding units which are connected with one another, and the folding units are arranged on the same folding top frame. The folding unit comprises a plurality of movable supports, each movable support comprises a transverse frame, and the transverse frames are provided with an awning supporting frame; modular design is adopted for the folding top frame, the coverage range and height of the dustproof awning can be flexibly adjusted according to construction requirements, the dustproof requirements in different scenes are met, the folded dustproof awning is compact in structure, convenient to store and transport and capable of being recycled, the triangular supporting structures and the vertical supporting pieces are adopted, the overall stability and supporting strength are improved, and the dustproof awning is convenient to use. Strong wind and severe weather are effectively resisted, and the effects of high flexibility and stable structure are achieved.

Description

Technical Field

[0001] This application relates to the technical field of dust prevention in foundation pit construction, and particularly to a foldable dust-proof canopy for deep building foundation pits. Background Technique

[0002] In the construction industry, deep foundation pit construction is a common and important engineering link. However, during the excavation of deep foundation pits, a large amount of dust is often generated, which not only seriously affects the construction environment but also has an adverse impact on the living quality of surrounding residents and air quality. To solve this problem, currently, measures such as fixed dust-proof canopy nets and temporary sprinkling and spraying are usually taken to control dust. Although the existing dust-proof measures have alleviated the problem of dust to a certain extent, after the installation of the fixed dust-proof canopy net, it is difficult to flexibly adjust the coverage area according to the construction progress, unable to meet diverse construction needs, and affecting the use effect. Utility Model Content

[0003] In order to solve the problem that it is difficult to flexibly adjust the coverage area according to the construction progress after the installation of the fixed dust-proof canopy net, this application provides a foldable dust-proof canopy for deep building foundation pits.

[0004] The foldable dust-proof canopy for deep building foundation pits provided by this application adopts the following technical solutions:

[0005] A foldable dust-proof canopy for deep building foundation pits includes a number of support beams, and a same folding top frame is arranged on the number of support beams, and a dust-proof canopy net is arranged on the folding top frame;

[0006] The folding top frame includes a number of groups of interconnected folding units, the folding unit includes a number of moving brackets, the moving bracket includes a cross frame, a canopy support frame is arranged on the cross frame, a scissor frame is arranged between adjacent two cross frames, adjacent two scissor frames are hinged to each other, and a driving unit is arranged on one of the scissor frames for driving the scissor frame to drive the moving bracket to unfold and fold to realize the folding and storage of the dust-proof canopy net.

[0007] Preferably, a number of guide rails are arranged on the support beam, a number of moving wheels are arranged at the bottom of the cross frame, and the moving wheels are arranged on the corresponding guide rails.

[0008] Preferably, the canopy support frame includes an arch-shaped support frame arranged on the cross frame, triangular support frames are arranged on both sides of the arch-shaped support frame, and the triangular support frames on adjacent two folding units are fixedly connected to each other.

[0009] Preferably, the driving unit comprises two fixed pulleys mounted on a support beam, the same traction rope being sleeved on the two fixed pulleys, a slider being fixedly provided on the traction rope, the slider being connected to the end of one of the scissors-type frames, and two adjacent driving units being connected via a transmission unit, wherein the fixed pulley on one of the driving units is connected to an external driving motor via the transmission unit.

[0010] Preferably, a slide groove is provided on one end of the cross frame close to the slider, one end of the scissor-type frame away from the slider is hinged to the cross frame, and one end of the scissor-type frame close to the slider is slidably connected to the slide groove.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] Through the coordinated use of the folding top frame, dustproof canopy net, transmission wheels and moving wheels, and by adopting a modular design for the folding top frame, the coverage and height of the dustproof canopy can be flexibly adjusted according to construction needs to meet the dustproof needs in different scenarios. After folding, the structure is compact, easy to store and transport, and recyclable. It adopts a triangular support structure and vertical support parts to improve the overall stability and support strength, and effectively resist strong winds and bad weather. Compared with the existing technology, it has strong flexibility and stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0014] Figure 2 is a schematic diagram of a second perspective stereoscopic structure of an embodiment of the application;

[0015] Figure 3 is a schematic diagram of a three-dimensional structure from a third viewing angle of an embodiment of the application;

[0016] Figure 4 It is a schematic diagram of the stereoscopic structure from the fourth perspective of the embodiment of the application.

[0017] Explanation of the reference numerals: 1. Support beam; 2. Guide beam; 3. Folding top frame; 301. Moving bracket; 3011. Bow-shaped support frame; 3012. Triangular support frame; 30121. Cross bar; 30122. Diagonal bar; 30123. Vertical bar; 30124. Connecting piece; 3013. Cross frame; 302. Scissor frame; 303. Drive unit; 3031. Fixed pulley; 3032. Sliding block; 3033. Traction rope; 4. Dust-proof canopy net; 5. Transmission wheel; 6. Moving wheel. DETAILED DESCRIPTION

[0018] The following is combined with Figures 1-4 This application is described in further detail.

[0019] An embodiment of the present application discloses a foldable dust-proof canopy for a building deep foundation pit. Refer to Figures 1-4 , a foldable dust-proof canopy for a building deep foundation pit, including a plurality of support beams 1 installed on the top of the deep foundation pit through columns. A plurality of mutually parallel guide rails 2 are installed on the support beam 1. A folding top frame 3 is installed on the guide rail 2. The dust-proof canopy net 4 is fixed to the top of the folding top frame 3 through ropes. One end of the folding top frame 3 is fixed to the support beam 1, and the other end is slidably connected to the guide rail 2. The folding top frame 3 is driven by power to move along the guide rail 2 to realize the unfolding and folding of the folding top frame 3, so as to complete the spreading and folding storage of the dust-proof canopy net 4.

[0020] Refer to Figure 3 , the folding top frame 3 includes a plurality of groups of interconnected folding units. The folding unit includes a plurality of moving brackets 301 installed along the guide rail 2. By installing a plurality of moving wheels 6 at the bottom of the moving bracket 301 and placing the moving wheels 6 on the corresponding guide rail 2, the guide rail 2 is used to guide and support the moving wheels 6 to ensure the smooth movement of the moving bracket 301.

[0021] Refer to Figure 4 , the moving bracket 301 includes a cross frame 3013 installed on the moving wheel 6, and a canopy support frame is installed on the cross frame 3013. The canopy support frame includes an arched support frame 3011 installed on the cross frame 3013. Triangular support frames 3012 are installed on both sides of the arched support frame 3011. The triangular support frame 3012 includes a cross bar 30121 fixedly installed on both sides of the arched support frame 3011. A connecting piece 30124 with a screw hole is fixed at the end of the cross bar 30121. Two connecting pieces 30124 can be fixed by bolts to complete the connection of the moving brackets 301 on two adjacent folding units. The cross bar 30121 and the cross frame 3013 are supported by an inclined slant bar 30122 to form a large support triangular structure, improving the support strength of the slant bar 30122. Then a vertical vertical bar 30123 is installed inside the large support triangular structure to divide it into two small support triangular structures to prevent the arched support frame 3011 and the slant bar 30122 from deforming under stress. The moving bracket 301 can be transported or stored as a whole, reducing the on-site assembly workload. The whole of the moving bracket 301 can be made of lightweight and high-strength materials.

[0022] Refer to Figure 4A scissor frame 302 is installed between two adjacent horizontal frames 3013, and the two adjacent scissor frames 302 are hinged to each other. A driving unit 303 is installed on one of the scissor frames 302, and the driving unit 303 includes a fixed pulley 3031, a slider 3032, and a traction rope 3033. The main function of the driving unit is to transmit motion to the scissor frame 302 through the slider 3032 and the traction rope 3033. The two fixed pulleys 3031 are respectively installed on the support beam 1, and the same traction rope 3033 is fixed on the slider 3032. The slider 3032 is connected to the end of the scissor frame 302 to drive the scissor frame 302 to slide in the slide groove on the horizontal frame 3013. The transmission wheel 5 is connected to the external drive motor to convert the rotational motion of the motor into the drive of the pulley, thereby driving the motion of the traction rope 3033. The transmission wheel 5 and the fixed pulley 3031 are connected through the traction rope 3033 to realize the transmission of power.

[0023] Reference Figure 3 The scissor frame 302 is installed on the mobile bracket 301, and is mainly formed by connecting adjacent scissor frames 302 through hinges. One end of a scissor frame 302 away from 3032 is hinged to the cross frame 3013, and the other end is slidably connected to the slide. The slide is opened on the cross frame 3013, providing a sliding guide to ensure the stable movement of the scissor frame 302.

[0024] The implementation principle of a foldable dustproof canopy for a deep foundation pit of a building in the embodiment of the present application is as follows:

[0025] During installation, install the support beam 1 on the top of the deep foundation pit to ensure stability. Install the guide beam 2 on the support beam 1 to ensure that they are parallel and horizontal. Install the various components of the folding top frame 3, including the mobile bracket 301, the scissor frame 302 and the drive unit 303, on the guide beam 2 one by one. The mobile bracket 301 is placed on the guide beam 2 through the moving wheels 6 at the bottom to ensure smooth sliding. Fix the dustproof canopy net 4 to the top of the folding top frame 3 with ropes to ensure a tight connection.

[0026] When unfolding, start the external drive motor, and the motor drives the fixed pulley 3031 to rotate through the transmission wheel 5. The fixed pulley 3031 transmits power to the slider 3032 through the traction rope 3033, and the slider 3032 is connected to the end of the scissor frame 302. As the slider 3032 moves, the scissor frame 302 slides in the slide groove of the cross frame 3013 and gradually unfolds. Since the scissor frames 302 are connected by hinges, they will unfold at the same time to form a stable support structure. As the scissor frames 302 unfold, the various movable brackets 301 of the folding top frame 3 slide along the guide rail beam 2 until they are fully unfolded, and the dustproof canopy net 4 is also spread out to cover the entire deep foundation pit.

[0027] After the dust-proof canopy net 4 is unfolded, it effectively prevents dust from flying during the construction process, protecting the construction environment and the surrounding environment. During the construction process, the coverage range and height of the dust-proof canopy net 4 can be adjusted as needed by adjusting the unfolding degree of the scissor lift 302.

[0028] When folding and storing, when the construction is completed or the dust-proof canopy net 4 needs to be adjusted, the driving motor is operated in the reverse direction to gradually contract the scissor lift 302. As the scissor lift 302 contracts, the moving support 301 slides along the guide rail beam 2 to the initial position, and the dust-proof canopy net 4 is also folded and stored accordingly. The folded dust-proof canopy net 4 and the folding top frame 3 are structurally compact, facilitating storage and transportation, and can be recycled.

[0029] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second: In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0032] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A foldable dust-proof canopy for a deep foundation pit of a building, comprising a plurality of support beams (1), characterized in that: A same folding top frame (3) is arranged on a plurality of the support beams (1), and a dust-proof tent net (4) is arranged on the folding top frame (3); The folding top frame (3) comprises a plurality of groups of interconnected folding units. The folding unit comprises a plurality of moving brackets (301). The moving bracket (301) comprises a cross frame (3013). A tent support frame is arranged on the cross frame (3013). A scissors frame (302) is arranged between two adjacent cross frames (3013). Two adjacent scissors frames (302) are hinged to each other. A driving unit (303) is arranged on one of the scissors frames (302) and is used for driving the scissors frame (302) to drive the moving bracket (301) to unfold and fold so as to realize the folding and storage of the dust-proof tent net (4).

2. The foldable dust-proof canopy for deep foundation pits of buildings according to claim 1, characterized in that: A plurality of guide rail beams (2) are arranged on the support beam (1). A plurality of moving wheels (6) are arranged at the bottom of the cross frame (3013), and the moving wheels (6) are arranged on the corresponding guide rail beams (2).

3. The foldable dust-proof canopy for deep foundation pits of buildings according to claim 1, wherein: The tent support frame comprises an arc-shaped support frame (3011) arranged on the cross frame (3013). Triangular support frames (3012) are arranged on both sides of the arc-shaped support frame (3011), and the triangular support frames (3012) on two adjacent folding units are fixedly connected to each other.

4. A foldable dust-proof canopy for a deep foundation pit of a building according to claim 1, characterized in that: The driving unit (303) comprises two fixed pulleys (3031) mounted on the support beam (1). A same traction rope (3033) is sleeved on the two fixed pulleys (3031). A slider (3032) is fixedly arranged on the traction rope (3033). The slider (3032) is connected to the end of one of the scissors frames (302). Adjacent driving units are connected by a transmission unit in a transmission manner. The fixed pulley (3031) on one of the driving units is connected to an external driving motor through the transmission unit.

5. The foldable dust-proof canopy for a building deep foundation pit according to claim 4, characterized in that: A chute is arranged at one end of the cross frame (3013) close to the slider (3032). The end of the scissors frame (302) far from the slider (3032) is hinged to the cross frame (3013). The end of the scissors frame (302) close to the slider (3032) is slidably connected to the chute.

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