Isolation shed for open cut foundation pit construction

Abstract

The utility model provides an isolation shed for open cut foundation pit construction. The isolation shed comprises a fence unit and a ceiling unit. The number of the ceiling units is one or more, and each ceiling unit comprises a telescopic main beam, a supporting frame installed on the main beam and a protection unit fixed to the supporting frame. The ceiling units are unfolded and folded under the action of stretching or folding of the main beams. The isolation shed for open-cut foundation pit construction has multiple working modes, can provide a shielding function, can meet the foundation pit isolation protection requirements under different working conditions in the whole construction process from whole foundation pit excavation to underground structure construction, and can be partially or completely stored through the telescopic shed roof assembly, so that the construction efficiency is improved. And therefore, the hoisting operation of large materials and components is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit construction, in particular to an isolation shed used for open excavation foundation pit construction. Background Art

[0002] Open excavation is a common construction method for building foundation pits. It is convenient to construct and has low engineering cost. It is the preferred construction method in the foundation pit field. However, open excavation is easily affected by precipitation, haze, strong wind and other weather conditions. In particular, the frequent rainy weather in the south will seriously affect the construction progress. In addition, the construction dust and noise pollution caused by the expansion excavation are difficult to control, which has a great impact on the surrounding environment. In recent years, with the increasing demand for low-carbon construction and green construction in the industry, and the continuous compression of construction period and cost by the construction party, it is an urgent problem to save the construction period and cost as much as possible while ensuring the green and safe construction of the foundation pit, and to ensure the normal construction of the foundation pit by taking reasonable measures.

[0003] At present, isolation sheds are often used in open excavation foundation pit construction in urban areas. Common isolation sheds can be divided into two categories. One is a simple dust-proof and sunshade canopy, which is mainly used to deal with the impact of construction dust on the surrounding environment. This canopy has a simple structure, low cost, and is easy to open and close, but it only has partial shading and dust-proof effects, and cannot guarantee normal construction of the foundation pit in rainy weather; the other is a customized awning, which uses a fixed steel frame structure and rainproof cloth to completely enclose the entire foundation pit, and cannot be opened and closed after installation. However, this awning has a high degree of customization, high cost, long manufacturing time, is not easy to disassemble, and cannot be opened and closed, which seriously affects the lifting operation of large component materials. It is currently only used in a few subway foundation pit scenes in the north. Utility Model Content

[0004] The main purpose of the utility model is to provide an isolation shed for open excavation foundation pit construction, which is intended to provide a shielding function while not affecting the hoisting operation of large materials and components.

[0005] To achieve the above-mentioned purpose, the utility model provides an isolation shed for open excavation foundation pit construction, the isolation shed comprising a fence unit and a ceiling unit; the ceiling unit is one or more, the ceiling unit comprising a retractable main beam, a support frame installed on the main beam, and a protective unit fixed on the support frame; the ceiling unit can be deployed and recovered under the action of the extension or recovery of the main beam.

[0006] Preferably, the ceiling unit further comprises a storage box, and the storage box is used to store the main beam, the support frame and the protection unit when the main beam is recovered.

[0007] Preferably, the protection unit is a rainproof cloth.

[0008] Preferably, a zipper is provided at the edge of the rainproof cloth, and the zipper is used to connect adjacent rainproof cloths; and the zipper is started and closed by an electric zipper device.

[0009] Preferably, the main beam is connected to a telescopic control mechanism, and the telescopic control mechanism controls the extension and retraction of the main beam.

[0010] Preferably, the enclosure unit is used to be supported on the retractable roof assembly and is located below the retractable roof assembly.

[0011] Preferably, a pitch adjustment mechanism is installed below the storage box to adjust the support angle of the main beam.

[0012] Preferably, the pitch adjustment mechanism is an electric telescopic rod, one section of the electric telescopic rod is fixed on the base, and the other section of the electric telescopic rod is supported below the storage box.

[0013] Preferably, a spray system is also installed on the enclosure unit.

[0014] Preferably, the enclosure unit comprises a front enclosure and a rear enclosure that are arranged opposite to each other and side enclosures connecting the front enclosure and the rear enclosure on both sides, and the front enclosure, the rear enclosure and the side enclosure are all assembled from a plurality of modular enclosure units.

[0015] The isolation shed for open excavation foundation pit construction proposed by the utility model has the following beneficial effects:

[0016] 1. This isolation shed has multiple working modes. It can provide shielding functions and cover the isolation and protection requirements of the foundation pit under different working conditions during the entire construction process from foundation pit excavation to underground structure construction. At the same time, it can be partially or completely stored through the retractable roof components, so as not to affect the lifting operation of large materials and components;

[0017] 2. The retractable roof components can be stored and the volume is small after being folded, which makes it easy to store and transport the isolation shed;

[0018] 3. The retractable roof unit is installed on one side of the foundation pit, and it will cover the entire foundation pit after being unfolded step by step. No other supporting structures such as ropes or frames are required above the foundation pit, so it is easy to install. When hoisting operations are required, only the roof units in the corresponding area need to be folded up. There will be no obstacles in the folded area, ensuring the convenience and safety of hoisting operations.

[0019] 4. This isolation shed has the advantages of simple structure, stable and reliable operation and easy implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an isolation shed used for open excavation foundation pit construction according to the utility model;

[0021] Figure 2 It is a structural schematic diagram of a ceiling unit in an isolation shed used for open excavation foundation pit construction according to the utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of the detailed enlarged structure at point A shown;

[0023] Figure 4 It is a structural schematic diagram of the ceiling unit in the isolation shed used for open excavation foundation pit construction of the utility model when it is stored;

[0024] Figure 5 It is a structural schematic diagram of the ceiling unit in the isolation shed used for open excavation foundation pit construction of the utility model when it is partially unfolded;

[0025] Figure 6 It is a structural schematic diagram of the ceiling unit in the isolation shed used for open excavation foundation pit construction of the utility model when it is fully unfolded;

[0026] Figure 7 It is a structural schematic diagram of the isolation shed used for open excavation foundation pit construction of the utility model when it is fully opened;

[0027] Figure 8 It is a structural schematic diagram of the isolation shed used for open excavation foundation pit construction of the utility model when it is partially opened;

[0028] Fig. 9 It is a schematic structural diagram of the isolation shed used for open excavation foundation pit construction of the utility model when it is fully covered;

[0029] Fig.10 It is a structural schematic diagram of the isolation shed used for open excavation foundation pit construction of the utility model in the shutter mode;

[0030] Fig.11 for Fig.10 A schematic diagram of the detailed enlarged structure of point B is shown.

[0031] In the figure, 1. ceiling unit; 2. front enclosure; 3. rear enclosure; 4. side enclosure; 5. sprinkler system; 6. main control device; 7. open excavation pit; 8. excavator; 9. dump truck; 101. main beam; 102. bracket; 103. rainproof cloth; 104. zipper; 105. electric zipper device; 106. pitch adjustment mechanism; 107. storage box; 108. base; 109. retraction control mechanism; 110. hinge; 201. access door.

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] Reference Figures 1 to 11 In the preferred embodiment, an isolation shed for open excavation foundation pit construction includes a fence unit and a ceiling unit; there are one or more ceiling units 1, and the ceiling unit 1 includes a retractable main beam 101, a support frame installed on the main beam 101 (the support frame in this embodiment is a bracket 102), and a protective unit fixed on the support frame; the ceiling unit 1 is extended or retracted under the action of the main beam 101.

[0036] Furthermore, the ceiling unit 1 further comprises a storage box 107, and the storage box 107 is used to store the main beam 101, the support frame, and the protection unit when the main beam 101 is recovered. In this embodiment, the protection unit is a rainproof cloth 103.

[0037] The number of roof units can be adjusted according to the length of the foundation pit 7. Specifically, in this embodiment, a plurality of brackets 102 extend outward from the top of the main beam 101, and the rainproof cloth 103 above the bracket 102 is fixed on the bracket 102. The bracket 102 and the main beam 101 form a fishbone structure to stably support the rainproof cloth 103 above it. The rainproof cloth 103 is rectangular.

[0038] Further, refer to Figure 3 A zipper 104 is provided at the edge of the rainproof cloth 103, and the zipper 104 is used to connect adjacent rainproof cloths 103; and the zipper 104 is started and closed by an electric zipper device (which can adopt a common structure in the prior art).

[0039] Adjacent waterproof tarpaulins 103 are connected by zippers 104. On the one hand, the two adjacent roof units 1 are sealed to prevent rainwater from entering the gap. On the other hand, when the isolation shed needs to be unfolded, the connection between the two adjacent roof units 1 can be easily cut off by pulling the zipper 104, thereby facilitating the adjustment of the unfolded area of ​​the isolation shed. For example, three or four roof units can be partially opened, and it is only necessary to pull the corresponding zipper 104 and then control the main beam 101 to be partially retracted, which is easy to operate.

[0040] Furthermore, the main beam 101 is connected to a retractable control mechanism 109, and the retractable control mechanism 109 controls the automatic retractability of the main beam 101. The main beam 101 and the retractable control mechanism 109 form a space folding and unfolding mechanism to achieve retraction or unfolding. The space folding and unfolding mechanism adopts a common structure in the prior art, and the utility model does not limit this. When the main beam 101 is extended too long, a support mechanism is provided under the main beam 101 to support it, thereby ensuring the stability of the overall structure. The support mechanism adopts a retractable structure to achieve quick storage.

[0041] The working process of the retractable roof assembly 1 is as follows: when it is necessary to store, the main beam 101 is driven to contract through the contraction control mechanism 109, and the main beam 101 contracts, which drives the bracket 102 and the rainproof cloth 103 to be stored together. When the storage is in place, the main beam 101, the rainproof cloth 103 and the bracket 102 will all be stored in the storage box 107. According to the different degrees of expansion of the retractable roof assembly 1, it can be completely folded (such as Figure 4 ), partially expanded (such as Figure 5 ), fully expanded (e.g. Figure 6 ).

[0042] Furthermore, a pitch adjustment mechanism 106 is installed below the storage box 107 to adjust the support angle of the main beam 101, and one side of the storage box 107 is hinged to the base 108 (hinged by a hinge 110). This embodiment proposes a specific structure of the pitch adjustment mechanism 106: the pitch adjustment mechanism 106 is an electric telescopic rod, one section of the electric telescopic rod is fixed to the base 108, and the other section of the electric telescopic rod is supported below the storage box 107.

[0043] The pitch adjustment mechanism 106 drives the storage box 107 to rotate around the hinge 110 as a whole by extending and shortening, so that the storage box 107, the main beam 101, the bracket 102, the rainproof cloth 103 and the ground are inclined at a certain angle, and the entire isolation shed forms a shutter working mode.

[0044] Further, refer to Figure 3The zipper 104 is connected to an electric zipper device 105 to start the zipping. The electric zipper device 105 can simplify manual operation. The electric zipper device 105 is located on the zipper 104 and can move along the zipper 104. The electric zipper device 105 can zip and connect the zippers 104 on the rainproof cloth 103 on two adjacent roof units to form a whole. Multiple unfolded roof units are connected in sequence through the zipper 104 to form a whole isolation shed roof.

[0045] Further, refer to Figure 1 A spray system 5 is also installed on the enclosure unit, which can be turned on to spray water mist as needed to suppress dust in the foundation pit 7 and reduce the temperature in the foundation pit.

[0046] In this embodiment, the contraction control mechanism 109, the spray system 5 and the electric zipper 104 are all connected to the main control device 6 to achieve automatic control. The main control device 6 can be installed around the foundation pit 7 or in other suitable remote control rooms, and the operation of the isolation shed can be remotely controlled through the main control device 6.

[0047] In this embodiment, the enclosure unit includes a front enclosure 2 and a rear enclosure 3 that are arranged opposite to each other, and a side enclosure 4 that connects the front enclosure 2 and the rear enclosure 3. The front enclosure 2, the rear enclosure 3 and the side enclosure 4 are all assembled from a plurality of modular enclosure units. The front enclosure 2 is installed at the front edge of the foundation pit 7, and the rear enclosure 3 is installed at the rear edge of the foundation pit 7.

[0048] Specifically, the number of modular enclosure units required can be adjusted according to the size of the foundation pit. The front enclosure 2 is provided with an access door 201 for personnel, materials, muck trucks 9, etc. to enter and exit.

[0049] The isolation shed adopts modular design and can be reused repeatedly. The same product can cover foundation pits of different sizes, which has good economic efficiency.

[0050] This isolation shed can provide four different levels of isolation protection for operations inside the foundation pit, meeting the protection needs under different working conditions of foundation pit construction.

[0051] 1. Fully open mode (such as Figure 7 As shown): The roof of the isolation shed is fully open, and there is no shielding above the foundation pit. It is suitable for hoisting of super-large objects, or in good weather without sunshade, rain protection, dust and noise reduction.

[0052] 2. Partially open mode (such as Figure 8 As shown in the figure): The roof of the isolation shed is partially open, and there is no shielding above the open part. It is suitable for lifting operations of small objects. The open area of ​​the isolation shed roof can be dynamically adjusted according to the lifting operation position, while other areas continue to be shaded, rainproof, dustproof, and noise-reducing.

[0053] 3. Full coverage mode (such as Fig. 9 As shown in the figure): The roof of the isolation shed is completely enclosed, providing a relatively closed working environment for foundation pit construction, preventing the impact of bad weather (rain, snow, strong wind, haze, etc.) on construction, ensuring construction progress, and reducing construction costs. At the same time, it isolates the noise, dust, light pollution, etc. in the foundation pit, reducing the impact of construction on the surrounding environment

[0054] 4. Shutter mode (such as Fig.10 As shown): The inclination angle of the isolation shed can be automatically adjusted according to the position of the sun, providing sunshade protection for the foundation pit in hot weather while maintaining air circulation inside and outside the foundation pit to avoid stuffiness inside the foundation pit.

[0055] The working principle of the isolation shed is as follows: the APP can be remotely connected to the main control device 6 for control, and the contraction control mechanism is controlled to drive the main beam 101 to unfold step by step. When the main beam 101 unfolds, the bracket 102 attached to the main beam 101 and the rainproof cloth 103 attached to the bracket 102 are simultaneously unfolded to form a single unfolded shed roof unit. According to the degree of unfolding of the shed roof unit, it can be completely folded (such as Figure 4 ), partially expanded (such as Figure 5 ), fully expanded (e.g. Figure 6 ) and other states. The electric zipper device 105 closes the zippers 104 on the adjacent partially or fully expanded roof units, so that the multiple roof units 1 form a whole to completely or partially cover the foundation pit. The pitch adjustment mechanism 106 can be remotely controlled by APP to form a certain angle between the roof and the ground, so that the isolation shed forms a shutter working mode.

[0056] The isolation shed for open excavation foundation pit construction proposed in this embodiment has the following beneficial effects:

[0057] 1. This isolation shed has multiple working modes. It can provide shielding functions and cover the isolation and protection requirements of the foundation pit under different working conditions during the entire construction process from foundation pit excavation to underground structure construction. At the same time, it can be partially or completely stored through the retractable roof component 1, so as not to affect the lifting operation of large materials and components;

[0058] 2. The retractable roof assembly 1 is retractable and has a small volume after being folded, so it is convenient for storage and transportation of the isolation shed;

[0059] 3. The retractable roof unit is installed on one side of the foundation pit, and it will cover the entire foundation pit after being unfolded step by step. No other supporting structures such as ropes or frames are required above the foundation pit, so it is easy to install. When hoisting operations are required, only the roof units in the corresponding area need to be folded up. There will be no obstacles in the folded area, ensuring the convenience and safety of hoisting operations.

[0060] 4. This isolation shed has the advantages of simple structure, stable and reliable operation and easy implementation.

[0061] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An isolation shed for open excavation foundation pit construction, the isolation shed comprising a fence unit and a ceiling unit; characterized in that: There are one or more ceiling units, and the ceiling units include a retractable main beam, a support frame installed on the main beam, and a protective unit fixed on the support frame; the ceiling units can be deployed and retracted under the action of the extension or retraction of the main beam.

2. The isolation shed for open excavation foundation pit construction according to claim 1, characterized in that: The ceiling unit also includes a storage box, which is used to store the main beam, the support frame and the protection unit when the main beam is recovered.

3. The isolation shed for open excavation foundation pit construction according to claim 1, characterized in that: The protection unit is a rainproof cloth.

4. The isolation shed for open excavation foundation pit construction according to claim 3, characterized in that: A zipper is arranged at the edge of the rainproof cloth, and the zipper is used to connect adjacent rainproof cloths; and the zipper is started and closed by an electric zipper device.

5. The isolation shed for open excavation foundation pit construction according to claim 1, characterized in that: The main beam is connected with a telescopic control mechanism, and the telescopic control mechanism controls the extension and contraction of the main beam.

6. The isolation shed for open excavation foundation pit construction according to claim 1, characterized in that: The enclosure unit is used to support the retractable roof assembly and is located below the retractable roof assembly.

7. The isolation shed for open excavation foundation pit construction according to claim 2, characterized in that: A pitch adjustment mechanism is installed below the storage box to adjust the support angle of the main beam.

8. The isolation shed for open excavation foundation pit construction according to claim 7, characterized in that: The pitch adjustment mechanism is an electric telescopic rod, one section of the electric telescopic rod is fixed on the base, and the other section of the electric telescopic rod is supported below the storage box.

9. The isolation shed for open excavation foundation pit construction according to claim 1, characterized in that: A spray system is also installed on the enclosure unit.

10. The isolation shed for open excavation construction according to claim 1, characterized in that: The enclosure unit includes a front enclosure and a rear enclosure that are arranged opposite to each other, and side enclosures that connect the front enclosure and the rear enclosure on both sides. The front enclosure, the rear enclosure and the side enclosures are all assembled from a plurality of modular enclosure units.

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