Deep foundation pit slope protection warm shed

Abstract

The utility model relates to the technical field of deep foundation pit construction, in particular to a slope protection warm shed for a deep foundation pit. The warm shed support is adopted as a supporting structure of the warm shed, the heat preservation quilt is arranged on the warm shed support to preserve heat of the concrete structure, the C-shaped fixing plate is arranged at the outer end of the warm shed support, and the locking pieces are arranged on the supporting legs at the bottom end of the warm shed support. One end of the heat preservation quilt and the outer end of the warm shed support are clamped and fixed through the C-shaped fixing plate, the other end of the heat preservation quilt and the outer side supporting legs are fixed through the locking pieces, the two supporting legs are elastically connected, and therefore it is guaranteed that the bottom ends of the outer side supporting legs abut against the bottom face of the deep foundation pit, and the other end of the heat preservation quilt bypasses the bottoms of the outer side supporting legs to be fixed to the locking pieces. The heat preservation quilt abuts against the bottom face of the deep foundation pit, so that the heat preservation quilt is prevented from being lifted, and the heat preservation effect is improved.

Description

Technical Field

[0001] This application relates to the field of deep foundation pit construction technology, and in particular to a deep foundation pit slope protection shed. Background Technology

[0002] During the construction of underground infrastructure, deep foundation pits are usually excavated. Because the excavation of deep foundation pits disturbs the original soil, slope protection is required to prevent the slopes from collapsing. The conventional method is to lay a steel mesh on the slope and then spray a layer of concrete to form a slope protection. Since the cold winter environment is not conducive to the solidification of concrete, a heated shed needs to be built on the outside of the slope protection. Most existing heated sheds are built with simple supports. For example, a combined deep foundation pit heated shed device disclosed in patent number CN213741099U uses a frame as the support for the heated shed and lays an insulation blanket on the frame to insulate the slope concrete. However, in the above solution, the insulation blanket is only fixed to the upper end of the frame with a hook at one end. In windy weather, the bottom of the insulation blanket is easily lifted, resulting in poor insulation effect. Summary of the Invention

[0003] The present invention aims to solve the problem that the above-mentioned deep foundation pit warm shed device is easily blown away in strong winds, resulting in a reduction in heat preservation effect, and thus provides a warm shed that can increase the heat preservation effect.

[0004] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0005] A deep foundation pit slope protection warm shed includes several warm shed supports and insulation blankets. The warm shed supports are arranged in a ring at equal intervals in the deep foundation pit on the inner side of the slope protection. The insulation blankets are used to fix and overlap the warm shed supports, and the outer ends of each warm shed support abut against the soil above the slope protection. Each warm shed support has a C-shaped fixing plate snapped onto its outer end. One end of the insulation blanket is clamped to the outer end of the warm shed support through the C-shaped fixing plate. Each warm shed support has a support leg hinged to its inner and outer sides at the bottom end, and the two support legs are elastically connected. A locking device is provided on the lower side of the support leg on the outer side of the warm shed support. The other end of the insulation blanket is used to wrap around and cover the bottom of the outer support leg, and is fixedly connected to the outer support leg through the locking device.

[0006] Compared with the prior art, the advantages of this utility model, which adopts the above technical solution, are as follows:

[0007] This utility model uses a greenhouse frame as the supporting structure for the greenhouse, and sets an insulation blanket on the greenhouse frame to insulate the concrete structure. The utility model has a C-shaped fixing plate at the outer end of the greenhouse frame, and a locking device on the bottom leg of the greenhouse frame. One end of the insulation blanket is clamped to the outer end of the greenhouse frame by the C-shaped fixing plate, and the other end of the insulation blanket is fixed to the outer leg by the locking device. The two legs are elastically connected, ensuring that the bottom of the outer leg abuts against the bottom surface of the deep foundation pit. The other end of the insulation blanket is designed to bypass the bottom of the outer leg and be fixed to the locking device, so that the insulation blanket abuts against the bottom surface of the deep foundation pit, thus preventing the insulation blanket from being lifted and increasing the insulation effect.

[0008] As a preferred embodiment, a further technical solution of this utility model is:

[0009] The greenhouse support frame is designed in an L-shape, and the bottom of the L-shaped greenhouse support frame is equipped with casters. The casters facilitate the movement of the greenhouse support frame.

[0010] The outer end of the greenhouse frame has a vertical through hole. A T-shaped pin is elastically connected to the upper edge of the C-shaped fixing plate. The lower end of the T-shaped pin passes through the upper edge of the C-shaped fixing plate, the insulation blanket, the through hole of the greenhouse frame, the insulation blanket, and the lower edge of the C-shaped fixing plate, extending downwards towards the greenhouse frame. In use, one end of the insulation blanket is folded back to cover the outer end of the greenhouse frame, and the automatic rebound of the T-shaped pin secures the insulation blanket and the C-shaped fixing plate to the greenhouse frame.

[0011] The greenhouse support frame has a first fixed shaft at the bottom, and the tops of the two legs are respectively rotatably connected to the first fixed shaft. The two legs are elastically connected by springs.

[0012] The locking mechanism includes a C-shaped pin and a second fixed shaft. The second fixed shaft is located at the lower part of the outer support leg. The upper clamping edge of the C-shaped pin is rotatably sleeved on the second fixed shaft, and a torsion spring is provided between the upper clamping edge of the C-shaped pin and the second fixed shaft. The lower clamping edge of the C-shaped pin is used to extend through the insulation blanket and the outer support leg to the top of the insulation blanket. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a greenhouse set up in a deep foundation pit according to an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of the greenhouse support structure installed in a deep foundation pit according to an embodiment of this application;

[0015] Figure 3 This is a schematic diagram of the connection between the greenhouse support frame and the insulation blanket in an embodiment of this application;

[0016] Figure 4 yes Figure 3 A magnified view of part A in the image;

[0017] Figure 5 This is a schematic diagram of the lower structure of the support rod according to an embodiment of this application.

[0018] In the diagram: 1. Deep foundation pit; 11. Slope protection; 2. Greenhouse; 3. Greenhouse support frame; 31. Sleeve; 32. Telescopic rod; 33. C-shaped fixing plate; 34. T-shaped pin; 341. Circular insert plate; 342. Second spring; 343. Pin; 35. Support rod; 36. Inner support leg; 361. First spring; 37. Caster wheel; 38. Outer support leg; 381. C-shaped pin; 4. Insulation blanket. Detailed Implementation

[0019] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] Reference Figure 1-5 This application discloses a deep foundation pit slope protection warm shed, including several warm shed supports 3 and insulation blankets 4. The several warm shed supports 3 are arranged in a ring at equal intervals in the deep foundation pit 1 inside the slope 11. The insulation blankets 4 are used to fix and overlap each warm shed support 3, and the outer end of each warm shed support 3 abuts against the soil above the concrete of the slope 11. The outer end of each warm shed support 3 is clamped with a C-shaped fixing plate 33. One end of the insulation blanket 4 is clamped to the outer end of the warm shed support 3 through the C-shaped fixing plate 33. The inner and outer sides of the bottom end of each warm shed support 3 are respectively hinged with an outer support leg 38 and an inner support leg 36. The two support legs are elastically connected by a first spring 361. When the first spring 361 is in the natural state, the bottom end of the two support legs is lower than the bottom end of the warm shed support 3 and is hinged with a locking member to the lower side of the outer support leg 38. The other end of the insulation blanket 4 is used to bypass and cover the bottom of the outer support leg 38 and is fixedly connected to the outer support leg 38 through the locking member.

[0021] In this embodiment, the greenhouse support 3 is made of steel pipe and is configured as an L-shaped structure. Specifically, the greenhouse support 3 includes a sleeve 31, a telescopic rod 32, and a support rod 35. Both the telescopic rod 32 and the sleeve 31 are horizontally arranged. The telescopic rod 32 is movably inserted into the sleeve 31. The telescopic rod 32 and the sleeve 31 are fixed in position by bolts. A C-shaped fixing plate 33 is clamped on the outer end of the telescopic rod 32. The inner end of the sleeve 31 is vertically fixed to the top end of the support rod 35. The bottom of the support rod 35 is provided with a caster wheel 37 to facilitate the movement of the greenhouse support 3. Preferably, the caster wheel 37 is a locking caster wheel 37. When the greenhouse support 3 moves to the corresponding position, the caster wheel 37 is locked to prevent the greenhouse support 3 from moving.

[0022] In this embodiment, the outer end of the telescopic rod 32 is provided with a vertical first through hole. The upper and lower clamping edges of the C-shaped fixing plate 33 are both provided with through holes corresponding to the positions of the first through hole. A T-shaped pin 34 is elastically connected to the top of the upper clamping edge of the C-shaped fixing plate 33 via a second spring 342. Specifically, the T-shaped pin 34 includes a circular insert plate 341 and a pin 343 fixed to the bottom of the circular insert plate 341. The second spring 342 is sleeved on the pin 343, with its upper end fixed to the bottom of the circular insert plate 341 and its lower end fixed to the top of the upper clamping edge of the C-shaped fixing plate 33. When the second spring 342 is in its natural state, the pin 343 is inserted into... In the first through hole and through hole; when in use, first pull the T-shaped pin 34 upward to release the position restriction between the C-shaped fixing plate 33 and the telescopic rod 32, fold one end of the insulation blanket 4 back to cover the outer end of the greenhouse support 3, and use the C-shaped fixing plate 33 to clamp the folded position of the insulation blanket 4 and the outer end of the greenhouse support 3. After aligning the positions of the through hole and the first through hole, release the pin. The T-shaped pin 34 will automatically spring back under the action of the second spring 342. The pin 343 will pass through the upper clamping edge of the C-shaped fixing plate 33, the insulation blanket 4, the first through hole of the greenhouse support 3, the insulation blanket 4 and the lower clamping edge of the C-shaped fixing plate 33 in sequence and extend downward to the greenhouse support 3, thereby fixing one end of the insulation blanket 4 to the telescopic rod 32.

[0023] In this embodiment, a first fixed shaft is provided at the bottom of the greenhouse support 3. The tops of the inner support leg 36 and the outer support leg 38 are respectively rotatably sleeved on the first fixed shaft. The inner support leg 36 mainly serves as a support, and the outer support leg 38 is used to fix the other end of the insulation blanket 4. The locking component includes a C-shaped pin 381 and a second fixed shaft. The lower side of the C-shaped pin 381 is a slender pointed cone. The second fixed shaft is fixed to the lower part of the outer support leg 38. The upper side of the C-shaped pin 381 is rotatably sleeved on the second fixed shaft. A second through hole is provided on the outer support leg 38 below the second fixed shaft. A torsion spring is provided between the upper side of the C-shaped pin 381 and the second fixed shaft. The torsion spring is sleeved on the second fixed shaft. One leg of the torsion spring is fixed to the second fixed shaft, and the other leg of the torsion spring is fixed to the upper side of the C-shaped pin 381. When the torsion spring is in its natural state, the lower side of the C-shaped pin 381 is inserted into the second through hole. In use, first bend the lower edge of the C-shaped pin 381 downwards to release the positional constraint between the C-shaped pin 381 and the outer support leg 38. Then, fold the other end of the insulation blanket 4 around the bottom of the outer support leg 38, covering the inside of the outer support leg 38. The folded-back position is between the C-shaped pin 381 and the outer support leg 38. Release the pressure, and the C-shaped pin 381 will automatically spring back under the action of the torsion spring, passing through the folded-back position of the insulation blanket 4, the second through hole, and extending upwards towards the outer support leg 38, thereby fixing the other end of the insulation blanket 4 to the outer support leg 38. Preferably, if the lower edge of the C-shaped pin 381 does not pass through the insulation blanket 4, manual assistance can be used. Under the action of the torsion spring, the lower edge of the C-shaped pin 381 is ensured to be inserted into the second through hole, thus stably fixing the insulation blanket 4.

[0024] The insulation blanket 4 of this utility model is an integrated insulation blanket 4. Each greenhouse support 3 is pre-clamped with the insulation blanket 4 at equal intervals. A certain length of insulation blanket 4 is reserved on the head and tail greenhouse supports 3. During on-site construction, the first deep foundation pit 1 is excavated first, followed by the installation of steel mesh and spraying of concrete. The greenhouse 2 of this utility model is moved into the deep foundation pit 1. The head and tail greenhouse supports 3 are pulled respectively, and the insulation blanket 4 is gradually stretched and formed into a ring through the greenhouse supports 3. Then, each greenhouse support 3 is pushed radially so that the outer end of each greenhouse support 3 abuts against the soil above the concrete of the deep foundation pit 1 slope protection 11. The insulation blankets 4 reserved on the two end warm shed supports 3 are overlapped to form a closed warm shed 2. If the insulation blankets 4 are too long, they can be removed from the two end warm shed supports 3 and the excess insulation blankets 4 can be overlapped to ensure that the insulation blankets 4 between the two adjacent warm shed supports 3 are flat, thus ensuring that there are no gaps on the underside of the insulation blankets 4. After the first layer of slope protection 11 concrete has completely solidified, the two end warm shed supports 3 are pulled back to shrink each warm shed support 3 and the warm shed 2 is moved out of the deep foundation pit 1. The second layer of deep foundation pit 1 is excavated and the above warm shed 2 raising and lowering process is repeated until the construction of deep foundation pit 1 is completed.

[0025] This utility model uses a greenhouse support frame 3 as the supporting structure for the greenhouse 2, and sets an insulation blanket 4 on the greenhouse support frame 3 to insulate the concrete structure. This utility model sets a C-shaped fixing plate 33 at the outer end of the greenhouse support frame 3, and sets a locking member on the bottom support leg of the greenhouse support frame 3. One end of the insulation blanket 4 is clamped to the outer end of the greenhouse support frame 3 by the C-shaped fixing plate 33, and the other end of the insulation blanket 4 is fixed to the support leg by the locking member. The two support legs are elastically connected, thereby ensuring that the bottom end of the outer support leg 38 abuts against the bottom surface of the deep foundation pit 1. The other end of the insulation blanket 4 is set to bypass the bottom of the outer support leg 38 and be fixed to the locking member, so that the insulation blanket 4 abuts against the bottom surface of the deep foundation pit 1, thereby preventing the insulation blanket 4 from being lifted and increasing the insulation effect.

[0026] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A heated shed for deep foundation pit slope protection, characterized in that: It includes several heated shed supports and insulation blankets. The heated shed supports are arranged in a ring at equal intervals in the deep foundation pit on the inner side of the slope protection. The insulation blanket is used to fix and overlap the heated shed supports, and the outer end of each heated shed support abuts against the soil above the slope protection. Each heated shed support has a C-shaped fixing plate clamped to its outer end. One end of the insulation blanket is clamped to the outer end of the heated shed support through the C-shaped fixing plate. Each heated shed support has a support leg hinged to its inner and outer sides at the bottom end. The two support legs are elastically connected. A locking device is provided on the lower side of the support leg on the outer side of the heated shed support. The other end of the insulation blanket is used to go around and cover the bottom of the outer support leg, and is fixedly connected to the outer support leg through the locking device.

2. The deep foundation pit slope protection warm shed according to claim 1, characterized in that: The greenhouse support frame is designed in an L-shape, and the bottom of the L-shaped greenhouse support frame is equipped with casters.

3. The deep foundation pit slope protection greenhouse according to claim 1, characterized in that: The outer end of the greenhouse support has a vertical through hole. A T-shaped pin is elastically connected to the upper edge of the C-shaped fixing plate. The lower end of the T-shaped pin is used to pass through the upper edge of the C-shaped fixing plate, the insulation blanket, the through hole of the greenhouse support, the insulation blanket and the lower edge of the C-shaped fixing plate in sequence and extend downwards to the greenhouse support.

4. The deep foundation pit slope protection warm shed according to claim 1, characterized in that: The greenhouse support frame has a first fixed shaft at the bottom, and the tops of the two legs are respectively rotatably connected to the first fixed shaft. The two legs are elastically connected by springs.

5. The deep foundation pit slope protection warm shed according to claim 1, characterized in that: The locking mechanism includes a C-shaped pin and a second fixed shaft. The second fixed shaft is located at the lower part of the outer support leg. The upper clamping edge of the C-shaped pin is rotatably sleeved on the second fixed shaft, and a torsion spring is provided between the upper clamping edge of the C-shaped pin and the second fixed shaft. The lower clamping edge of the C-shaped pin is used to extend through the insulation blanket and the outer support leg to the top of the insulation blanket.

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