Foundation pit protection device for earth excavation in building construction
By designing a construction safety device that is easy to fold quickly, and using a retractable main rod to uniformly control the limiting rod, the problems of large size and complicated operation of traditional safety devices are solved, thereby improving construction efficiency and reducing management costs.
Patent Information
- Application Number
- CN202520045186.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Traditional construction safety devices are large in size and complex to operate, resulting in inconvenience in transportation, large space occupation, increased management costs, and reduced construction efficiency.
Design a building construction earthwork excavation pit protection device that is easy to fold quickly. The device can quickly unlock and lock by uniformly controlling the limit rod through the retracting main rod, thus simplifying the operation process.
It improves construction efficiency, reduces space occupation, lowers management costs, and ensures rapid completion of paving and dismantling work in emergency situations.
Smart Images
Figure CN223813963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of building construction technology, specifically related to a building construction earthwork excavation foundation pit protection device. BACKGROUND
[0002] In today's construction field, earthwork excavation foundation pit operation is a basic and highly dangerous link, and the foundation pit protection device plays a crucial role. Among them, the protective fence or protective net frame set at the edge of the foundation pit, as the key barrier to prevent personnel from accidentally falling into the foundation pit, has become a standard facility in the construction site.
[0003] Traditional protective fences and protective net frames, due to stability and protection strength considerations, are mostly constructed with large-sized pipes, connecting pieces and net frame structures. This makes their overall volume quite considerable, whether in the frequent handling process within the construction site or in the storage stage after construction, which brings great inconvenience to the construction team. Large protective devices require more manpower and resources to move, and occupy a large amount of valuable construction site storage space, increasing construction management costs and site coordination difficulties.
[0004] To cope with this dilemma, some improved designs introduce the folding concept, aiming to reduce the occupied volume of the device in the non-use state. To some extent, this innovation does indeed alleviate the storage problem, however, these folding protective devices often need to implement multiple locking or unlocking steps when switching between use and storage. Workers not only have to accurately operate the complex lock and release mechanism under the busy construction rhythm, but also need to repeatedly confirm whether each component is in place, otherwise it may cause the protective device to fail to function properly or damage the device when stored. Such a cumbersome operation process directly slows down the construction progress and reduces the work efficiency, which is contrary to the current pursuit of efficient and convenient construction concept. UTILITY MODEL CONTENTS
[0005] The utility model provides a kind of building construction earthwork excavation foundation pit protection device, with the characteristics that it is convenient to quickly fold and unfold protective fence.
[0006] The utility model provides following technical scheme: including two main support bars, be provided with the enclosure folding component between two main support bars, the enclosure folding component includes two fixed baffle and movable baffle, movable baffle is hinged between two fixed baffle, two fixed baffle are installed respectively in corresponding main support bar one side, movable baffle inner wall rotationally connected has winding main rod, winding main rod side wall is installed with a plurality of traction ropes, a plurality of traction ropes end all are installed with limiting insertion rod, a plurality of limiting insertion rod all are slidingly connected in movable baffle inner wall, two fixed baffle one side all are set up with a plurality of limiting insertion hole, limiting insertion rod is inserted in corresponding limiting insertion hole inner wall.
[0007] Among them, the movable baffle is internally provided with a plurality of inner sliding grooves and a plurality of yield inner grooves, one end of the plurality of limiting insertion rods is fixedly connected with a limiting ring, and the limiting ring and the inner sliding grooves are provided with a spring.
[0008] Among them, the winding main rod top end is installed with a six edge rod, the six edge rod side wall is slidingly connected with a rotating disc, the six edge rod top end is fixedly connected with a six edge plate, and the six edge rod side wall is provided with a damping coating.
[0009] Among them, the movable baffle top end is fixedly connected with a fixed top disc, the winding main rod is rotationally connected with the fixed top disc inner wall, a plurality of butt joints are formed in the fixed top disc, two lock rods are fixedly connected with the rotating disc bottom end, and the lock rods are inserted into the butt joint inner wall.
[0010] Among them, the top end of the two fixed baffles is provided with a top opening, and the two lock rods are respectively inserted into the top opening inner wall.
[0011] Among them, three ventilation openings are formed in the two fixed baffles and the movable baffle, and a surrounding fence net plate is mounted in the ventilation opening inner wall.
[0012] The utility model has the advantages that the control center is concentrated on the top of the movable baffle through the winding main rod, the winding main rod simultaneously pulls the plurality of limiting insertion rods through the plurality of traction ropes, thereby completing the synchronous recovery unlocking action of the plurality of limiting insertion rods, so that the traditional dispersed locking points can be uniformly controlled through the winding main rod, the fixed baffle and the movable baffle can be quickly unlocked and locked, the operation is simple and convenient, the work efficiency is improved, the paving and removal work can be quickly completed in an emergency, and the construction progress is not affected.
[0013] The parts not involved in the device are the same as or can be realized by the prior art. DRAWINGS
[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.
[0015] Figure 2 As Figure 1 enlarged view of the middle A part;
[0016] Figure 3 As
[0017] Figure 4 As
[0018] Figure 5 As Figure 4 enlarged view of the middle B part.
[0019] In the figure: 1, main support rod; 2, fence folding part; 21, fixed baffle; 211, limiting insertion hole; 212, top opening; 22, movable baffle; 221, inner sliding groove; 222, give way to the inner groove; 23, fixed top disc; 231, butt joint hole; 24, ventilation opening; 25, fence net plate; 3, winding main rod; 31, traction rope; 32, limiting insertion rod; 321, limiting ring; 33, spring; 34, six-ribbed rod; 341, six-ribbed plate; 35, turntable; 351, locking rod. DETAILED DESCRIPTION
[0020] Please refer to Figures 1-5 , the utility model provides the following technical scheme: including two main support rods 1, two main support rods 1 between being provided with fence folding part 2, fence folding part 2 includes two fixed baffle 21 and movable baffle 22, movable baffle 22 is hinged between two fixed baffles 21, two fixed baffles 21 are installed respectively in corresponding main support rod 1 one side, movable baffle 22 inner wall rotationally connected with winding main rod 3, winding main rod 3 side wall is installed with a plurality of traction ropes 31, a plurality of traction ropes 31 end portion is all installed with limiting insertion rod 32, a plurality of limiting insertion rods 32 are all slidingly connected in movable baffle 22 inner wall, two fixed baffles 21 one side is all set up with a plurality of limiting insertion holes 211, limiting insertion rod 32 is inserted in corresponding limiting insertion hole 211 inner wall.
[0021] In the embodiment: two main support rods 1 support each component of the device, the fence folding part 2 can be folded and unfolded between the two main support rods 1, the two fixed baffles 21 maintain a fixed angle with the corresponding main support rod 1, and the movable baffle 22 is opposite to the hinge direction of the two fixed baffles 21, so that the three baffles of the two fixed baffles 21 and the movable baffle 22 can be folded and clung together, reducing the space occupation during storage, facilitating storage and transfer, reducing construction management cost and site coordination difficulty, when the two fixed baffles 21 are pulled apart under stress, the corresponding side of the two fixed baffles 21 and the movable baffle 22 is butted, so that the two fixed baffles 21 and the movable baffle 22 can form an integrated fence plane, the winding main rod 3 is connected with the fixed baffle 21 through a plurality of limiting insertion rods 32, the limiting insertion rod 32 extends outwardly from the movable baffle 22, so that the limiting insertion rod 32 can be inserted into the corresponding limiting insertion hole 211, so that the fixed baffle 21 and the movable baffle 22 can be locked, the winding main rod 3 simultaneously pulls a plurality of limiting insertion rods 32 through a plurality of traction ropes 31, thereby completing the synchronous recovery unlocking action of a plurality of limiting insertion rods 32, so that the traditional dispersed locking points can be uniformly controlled by the winding main rod 3, the unlocking between the fixed baffle 21 and the movable baffle 22 can be quickly completed, and the folding and storage are simple and convenient, improving the work efficiency, the paving and removal transfer work can be quickly completed in an emergency, and the influence on the construction progress is avoided.
[0022] The movable baffle 22 is internally provided with a plurality of inner sliding grooves 221 and a plurality of yielding inner grooves 222, one end of the plurality of limiting insertion rods 32 is fixedly connected with a limiting ring 321, and the limiting ring 321 is provided with a spring 33 between the inner sliding groove 221; the inner sliding groove 221 guides and limits the limiting ring 321, preventing the limiting insertion rod 32 from being accidentally separated due to excessive extension length, the spring 33 pushes the limiting ring 321, so that the limiting insertion rod 32 can be automatically extended under the driving of the spring 33, facilitating the automatic locking work of the fixed baffle 21 and the movable baffle 22 after expansion and butt joint, and the yielding inner groove 222 yields the winding of the traction rope 31.
[0023] The winding main rod 3 is provided with a six-rib rod 34 at the top end, the six-rib rod 34 is slidably connected with a turntable 35 on the side wall, the six-rib rod 34 is fixedly connected with a six-rib plate 341 at the top end, and the six-rib rod 34 is provided with a damping coating on the side wall; the six-rib rod 34 is located at the top of the winding main rod 3, and the six-rib rod 34 extends out of the top of the movable baffle 22, the six-rib rod 34 is rotationally driven through the turntable 35, so that the winding main rod 3 can be rotationally regulated.
[0024] The top end of the movable baffle 22 is fixedly connected with a fixed top disc 23, the winding main rod 3 is rotationally connected to the inner wall of the fixed top disc 23, a plurality of butt joint holes 231 are formed in the fixed top disc 23, the bottom end of the rotating disc 35 is fixedly connected with two lock rods 351, and the lock rods 351 are inserted into the inner walls of the butt joint holes 231; the fixed top disc 23 is located in the butt joint range of the movable baffle 22 and the rotating disc 35, the rotating disc 35 can drive the lock rods 351 to slide upward by lifting the rotating disc 35, so that the unlocking is completed, the recovery and unlocking work of the plurality of limiting insertion rods 32 are completed by rotating the rotating disc 35, and when the locking work is performed, the rotating disc 35 drives the rotating disc 35 to be inserted into the corresponding butt joint hole 231, so that the rotating disc 35 can be limited by the fixed top disc 23, and then the locking of the winding main rod 3 and other components is completed.
[0025] The top end of each of the two fixed baffles 21 is provided with a top opening 212, and the two lock rods 351 are respectively inserted into the inner walls of the corresponding top openings 212; when the device is folded and stored, the two fixed baffles 21 and the movable baffle 22 are folded and abutted together, the rotating disc 35 drives the lock rods 351 to pass through the corresponding two butt joint holes 231 and continue to descend, at this time, the two rotating discs 35 can be inserted into the two top openings 212, the storage and fixing work between the two fixed baffles 21 and the movable baffle 22 is completed, the stability is improved, and the damping coating on the side wall of the six-ribbed rod 34 can prevent the rotating disc 35 from shaking randomly, and the stability of the lock rod 351 in the locked state is improved.
[0026] Three ventilation openings 24 are formed in each of the two fixed baffles 21 and the movable baffle 22, and a surrounding net 25 is mounted on the inner wall of the ventilation opening 24; the fixed baffle 21 and the movable baffle 22 are ventilated through the corresponding ventilation openings 24, so that the influence of airflow on the stability of the device is reduced, the surrounding net 25 shields and protects the space of the ventilation opening 24, and the passability of the ventilation opening 24 is closed.
[0027] The utility model discloses a working principle and use flow: initial, two main support pole 1 make support, and the enclosure folding part 2 is in the folding storage state, and the limiting insertion rod 32 is shrunk in the movable baffle 22, and the lock rod 351 of carousel 35 inserts the top 212 fixed structure, and when laying, first, main support pole 1 is placed to the edge fixed of foundation pit, then, the fixed baffle 21 is pulled open, and the movable baffle 22 is unfolded, and the three are connected into the enclosure plane. The spring 33 pushes the limiting insertion rod 32 along the inner slide groove 221 and is guided to stretch out in the final stage of unfolding, and is inserted into the limiting insertion hole 211 to complete the preliminary locking. If necessary, the lock rod 351 is separated from the butt joint hole 231 by lifting the carousel 35, and the carousel 35 is rotated, and the winding main rod 3 is rotated, and the limiting insertion rod 32 is unlocked or locked through the traction rope 31. The unlocking between the fixed baffle 21 and the movable baffle 22 can be quickly completed, and the folding storage is followed, and the operation is simple and convenient, and the work efficiency is improved, and the paving and removal work can be quickly completed under the emergency condition, the influence on the construction progress is avoided, and in use, the air vent 24 can balance air pressure, and the air flow impact is reduced, and the enclosure net plate 25 controls the passability of the air vent 24 as required, and the protection is guaranteed, and the environment is adapted, and the convenience and efficiency are combined.
Claims
1. A device for protecting a building construction earthwork excavation pit, comprising two main support rods (1), characterized in that: Two main supporting rods (1) are provided with a surrounding folding part (2), the surrounding folding part (2) comprises two fixed baffles (21) and a movable baffle (22), the movable baffle (22) is hinged between the two fixed baffles (21), the two fixed baffles (21) are respectively installed on one side of the corresponding main supporting rod (1), the inner wall of the movable baffle (22) is rotatably connected with a winding main rod (3), the side wall of the winding main rod (3) is provided with a plurality of traction ropes (31), the end of the plurality of traction ropes (31) is provided with a limiting plug rod (32), the plurality of limiting plug rods (32) are slidably connected to the inner wall of the movable baffle (22), and the two fixed baffles (21) are provided with a plurality of limiting insertion holes (211) on one side.
2. A device for protecting an excavation in earthworks construction according to claim 1, characterised in that: A plurality of inner sliding grooves (221) and a plurality of accommodating inner grooves (222) are formed in the movable baffle (22), one end of the plurality of limiting plug rods (32) is fixedly connected with a limiting ring (321), and the limiting ring (321) and the inner sliding groove (221) are provided with a spring (33).
3. The building construction earthwork excavation foundation pit protection device according to claim 1, characterized in that: The winding main rod (3) is provided with a six-rib rod (34) at the top end, the six-rib rod (34) is slidably connected with a rotating disc (35), the six-rib rod (34) is fixedly connected with a six-rib plate (341) at the top end, and the six-rib rod (34) is provided with a damping coating.
4. A device for protecting an excavation in earthworks construction according to claim 3, characterised in that: The movable baffle (22) is fixedly connected with a fixed top disc (23) at the top end, the winding main rod (3) is rotatably connected to the inner wall of the fixed top disc (23), a plurality of butt joint holes (231) are formed in the fixed top disc (23), the bottom end of the rotating disc (35) is fixedly connected with two lock rods (351), and the lock rods (351) are inserted into the inner wall of the butt joint holes (231).
5. A device for protecting an excavation in earthworks construction according to claim 4, characterised in that: The top end of the two fixed baffles (21) is provided with a top opening (212), and the two lock rods (351) are respectively inserted into the inner wall of the corresponding top opening (212).
6. A device for protecting a building construction excavation according to claim 1, characterized in that: Three ventilation openings (24) are formed in the two fixed baffles (21) and the movable baffle (22), and a surrounding mesh plate (25) is mounted in the inner wall of the ventilation opening (24).