Elevator shaft opening edge protection device

Abstract

The edge protection device comprises a base and a protection frame, a first insertion stick and a second insertion stick are fixedly inserted into the front end and the rear end of the lower side of the base, the first insertion stick and the second insertion stick are arranged in parallel in a spaced mode, the first insertion stick can extend leftwards, and a first supporting leg sleeve is perpendicularly welded to the lower side of the left end of the first insertion stick; a first supporting leg sleeve is vertically welded to the lower side of the right end of the first inserting rod, a first steel bar supporting leg is sleeved with the first supporting leg sleeve, the second inserting rod can extend rightwards, a second supporting leg sleeve is vertically welded to the lower side of the right end of the second inserting rod, a second steel bar supporting leg is sleeved with the second supporting leg sleeve, and the protection frame is detachably connected with the base. All the components are detachably connected, the installation process is simplified, during normal use, the first insertion stick and the second insertion stick are pulled out and installed on the first steel bar supporting leg and the second steel bar supporting leg which are embedded in a floor slab, during hoisting, the first insertion stick and the second insertion stick are retracted into the base, a tower crane is used for hoisting the whole body upwards, and the hoisting efficiency is improved. Therefore, the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator shaft opening protection. More specifically, the utility model provides an edge protection device for elevator shaft openings. Background Art

[0002] In modern building construction, elevator shaft protection is not only a guarantee for the safe operation of workers, but also the key to improving construction efficiency and accelerating the project progress. With the rapid development of building technology, the limitations of traditional elevator shaft protection methods have gradually emerged, such as the cumbersome installation process, the susceptibility to restrictions during transportation, and the lack of flexibility to adapt to changing construction environments. These problems have become bottlenecks restricting the improvement of construction efficiency.

[0003] Traditional protection methods often require reinstalling the elevator shaft protection during the construction of each floor slab. This process not only consumes time and effort but also involves a large amount of human and material resources. Workers need to carefully install in a high-altitude working environment, which not only increases the operation difficulty but also raises the safety risk. In addition, the frequent disassembly and assembly process may lead to increased material loss and construction costs. More seriously, this inefficient protection method directly leads to an extended construction period and affects the overall project schedule. Content of the Utility Model

[0004] To solve the technical problem of the complex and cumbersome protection of existing elevator shaft openings, from the perspective of standardization and modularization, the utility model innovatively provides an edge protection device for elevator shaft openings, which is easy to install, disassemble, and transport. Through standardized and modular design, rapid assembly and reuse of the protection device are realized, greatly improving construction efficiency.

[0005] To achieve the above technical purpose, the utility model discloses an edge protection device for elevator shaft openings, including a base and a protection frame. At both the front and rear ends of the lower side of the base, a first insertion rod and a second insertion rod are inserted and fixed. The first insertion rod and the second insertion rod are arranged in parallel at intervals. The first insertion rod can extend leftward, and a first leg sleeve is vertically welded to the lower side of the left end of the first insertion rod. A first steel bar leg is sleeved in the first leg sleeve. The second insertion rod can extend rightward, and a second leg sleeve is vertically welded to the lower side of the right end of the second insertion rod. A second steel bar leg is sleeved in the second leg sleeve. The protection frame is detachably connected to the base.

[0006] Furthermore, for the edge protection device for elevator shaft openings of the utility model, a plug-in sleeve is vertically welded to the upper side of the base. The protection frame includes a front protection railing, a rear protection railing, a left protection railing, and a right protection railing. The front protection railing, the rear protection railing, the left protection railing, and the right protection railing are sleeved on the plug-in sleeve and fixed by bolts to form a barrel-shaped protection structure.

[0007] Furthermore, for an edge protection device for the opening of an elevator shaft according to the present utility model, the front guardrail, rear guardrail, left guardrail, and right guardrail each include a guardrail frame and a protective net welded inside the guardrail frame. The guardrail frame includes three spaced-apart columns, and first threaded mounting holes are provided on the lower halves of the three columns. First bolts are screwed into the threaded mounting holes, and the columns are sleeved on the insertion sleeves, and the columns are fixed to the insertion sleeves by tightening the first bolts in the first threaded mounting holes.

[0008] Furthermore, for an edge protection device for the opening of an elevator shaft according to the present utility model, a toe board is welded to the lower half of the guardrail frame.

[0009] Furthermore, for an edge protection device for the opening of an elevator shaft according to the present utility model, the base includes a cross beam and a longitudinal beam welded to the upper surface of the cross beam. First guiding and fixing sleeves and second guiding and fixing sleeves are welded to the lower surface of the longitudinal beam. A second threaded mounting hole is provided in the middle of the first guiding and fixing sleeve. The first insertion rod is inserted into the first guiding and fixing sleeve and fixed by screwing a second bolt into the second threaded mounting hole. A third threaded mounting hole is provided in the middle of the second guiding and fixing sleeve. The second insertion rod is inserted into the second guiding and fixing sleeve and fixed by screwing a third bolt into the third threaded mounting hole.

[0010] Furthermore, for an edge protection device for the opening of an elevator shaft according to the present utility model, the longitudinal beam includes a first longitudinal beam, a second longitudinal beam, and an intermediate longitudinal beam. The intermediate longitudinal beam is evenly spaced between the first longitudinal beam and the second longitudinal beam. Two first guiding and fixing sleeves are provided, one of the first guiding and fixing sleeves is welded to the lower surface of the first longitudinal beam, and the other first guiding and fixing sleeve is welded to the lower surface of the intermediate longitudinal beam. Two second guiding and fixing sleeves are provided, one of the guiding and fixing sleeves is welded to the lower surface of the second longitudinal beam, and the other second guiding and fixing sleeve is welded to the lower surface of the intermediate longitudinal beam.

[0011] Furthermore, for an edge protection device for the opening of an elevator shaft according to the present utility model, a falling prevention net is welded to the upper surfaces of the first longitudinal beam, the second longitudinal beam, and the intermediate longitudinal beam.

[0012] Furthermore, for an edge protection device for the opening of an elevator shaft according to the present utility model, the lengths of the first insertion rod and the second insertion rod are both the same as the width of the base.

[0013] Furthermore, for a temporary edge protection device for elevator shaft openings of the present utility model, the shapes of the first steel bar leg and the second steel bar leg are both in the shape of a Chinese character 'tu'. The first leg sleeve is sleeved on the upper end of the Chinese character 'tu'-shaped first steel bar leg, and the lower surface of the first leg sleeve supports on the short side of the Chinese character 'tu'-shaped first steel bar leg. The second leg sleeve is sleeved on the upper end of the Chinese character 'tu'-shaped second steel bar leg, and the lower surface of the second leg sleeve supports on the short side of the Chinese character 'tu'-shaped second steel bar leg.

[0014] Furthermore, for a temporary edge protection device for elevator shaft openings of the present utility model, the first insertion rod, the second insertion rod, the first leg sleeve, the second leg sleeve, the insertion sleeve, the column, the first guiding and fixing sleeve, the second guiding and fixing sleeve, the cross beam, the first longitudinal beam, the second longitudinal beam, and the middle longitudinal beam are all made of square steel pipes.

[0015] The beneficial effects of the present utility model are as follows: The present utility model has excellent convenience, which is clearly reflected in the high efficiency of installation, disassembly, and transportation. Relying on the standardized and modular design, the device realizes the rapid combination and reuse of the base and the protection frame, which significantly optimizes the construction process and improves the overall working efficiency. Compared with the traditional method, the device can save about 30% of the installation time and effectively reduce about 20% of the construction cost, thus accelerating the project progress while significantly alleviating the pressure on human resources and material allocation at the construction site. During the specific construction process, workers only need to transport the prefabricated modular components to the operation area, and then through simple operation steps, install the first insertion rod and the second insertion rod on the first steel bar leg and the second steel bar leg pre-buried in the floor slab respectively, and quickly complete the installation by using a convenient splicing and fixing mechanism. After the formwork support operation for the top slab is completed, workers can easily retract the insertion rods into the base, and then use a tower crane to hoist the whole device upward for the continuous construction of the upper floor slab, effectively improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a temporary edge protection device for elevator shaft openings of the present utility model.

[0017] Figure 2 It is a front view structural schematic diagram of a temporary edge protection device for elevator shaft openings of the present utility model.

[0018] Figure 3 It is a bottom view structural schematic diagram of a temporary edge protection device for elevator shaft openings of the present utility model.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the base in a temporary edge protection device for elevator shaft openings of the present utility model.

[0020] Figure 5This is a three-dimensional structural schematic diagram of another angle of the base in a kind of edge protection device for the elevator shaft opening of the utility model. Specific implementation mode

[0021] The following combines the description drawings of the specification to conduct a detailed explanation and illustration of a kind of edge protection device for the elevator shaft opening of the utility model.

[0022] As Figure 1 shown, the utility model discloses a kind of edge protection device for the elevator shaft opening, including a base 1 and a protection frame 2. At the front and rear ends of the lower side of the base 1, a first insertion rod 3 and a second insertion rod 4 are firmly inserted. The two (the first insertion rod 3 and the second insertion rod 4) are parallel and arranged at intervals. The first insertion rod 3 is set to be able to extend to the left side, and a first leg sleeve 5 is vertically welded to the lower side of the left end of it (the first insertion rod 3). A first steel bar leg 7 is nested in the first leg sleeve 5 for fixation; the second insertion rod 4 extends to the right side, and a second leg sleeve 6 is also vertically welded to the lower side of the right end of it (the second insertion rod 4). A second steel bar leg 8 is nested in the second leg sleeve 6. The protection frame 2 and the base 1 are set with detachable connection to ensure flexibility and stability. It should be noted that the lengths of the first insertion rod 3 and the second insertion rod 4 are exactly matched with the width of the base 1, so that the first insertion rod 3 and the second insertion rod 4 can be completely retracted into the base 1. Through the standardized and modular settings, the device shows high efficiency in the installation, disassembly and transportation processes. It not only realizes the rapid combination and reuse of the base 1 and the protection frame 2, but also significantly optimizes the construction process and improves the overall work efficiency. Compared with the traditional method, the device can save about 30% of the installation time and effectively reduce about 20% of the construction cost. This improvement not only accelerates the project progress, but also effectively reduces the pressure on the construction site in terms of human resources and material allocation. During the actual construction process, the workers only need to transport the prefabricated modular components to the designated area, and then complete the installation through simple operation steps, that is, fix the first insertion rod 3 and the second insertion rod 4 on the first steel bar leg 7 and the second steel bar leg 8 pre-embedded in the floor slab respectively, and can quickly build the protection of the elevator shaft opening through convenient splicing. When the formwork operation of the top plate is completed, the workers can easily retract the insertion rods back into the interior of the base 1, and then use the tower crane to hoist the whole device upward, providing convenience for the continuous construction of the floor slab of the upper floor and further improving the construction efficiency.

[0023] As Figure 2As shown, in an embodiment of the present utility model, a socket sleeve 11 is vertically welded to the upper side of the base 1. The protective frame 2 includes a front protective rail 21, a rear protective rail 22, a left protective rail 23 and a right protective rail 24. The front protective rail 21, the rear protective rail 22, the left protective rail 23 and the right protective rail 24 are sleeved on the socket sleeve 11 and fixed by bolts to form a barrel-shaped protective structure. The front protective rail 21, the rear protective rail 22, the left protective rail 23 and the right protective rail 24 each include a guardrail frame and a protective net 25 welded inside the guardrail frame. The guardrail frame includes three spaced-apart columns 26. A horizontal railing is welded to the upper ends of the three columns 26, and a disconnected horizontal railing is welded between adjacent columns 26. First threaded mounting holes are provided in the lower halves of the three columns 26, and first bolts 27 are screwed into the threaded mounting holes. The columns 26 are sleeved on the socket sleeve 11, and the columns 26 are fixed to the socket sleeve 11 by tightening the first bolts 27 in the first threaded mounting holes. Since the columns 26 and the socket sleeve 11 are connected by the first bolts 27, the entire installation process becomes extremely simple and fast. Compared with the traditional welding or riveting methods, this connection method not only improves work efficiency, but also reduces labor intensity and cost investment. Under the same conditions, the installation time of the protective structure can be shortened by more than 30%, greatly improving the overall progress and benefits of the project. A toe board 28 is welded to the lower half of the guardrail frame. The toe board 28 can not only prevent people from accidentally tripping or stepping into the void, but also reduce the impact of noise and vibration on the surrounding environment to a certain extent.

[0024] As Figures 3 - 5As shown in the figure, in an embodiment of the present utility model, the base 1 includes a cross beam 12 and a longitudinal beam welded to the upper surface of the cross beam 12. The first guiding and fixing sleeve 13 and the second guiding and fixing sleeve 14 are welded to the lower surface of the longitudinal beam. The first guiding and fixing sleeve 13 can ensure the accurate insertion and fixation of the first insertion rod 3, and the second guiding and fixing sleeve 14 can ensure the accurate insertion and fixation of the second insertion rod 4. A second threaded mounting hole is provided in the middle of the first guiding and fixing sleeve 13. When the first insertion rod 3 is inserted therein, the first insertion rod 3 is firmly fixed by screwing the second bolt 15 into this hole. Similarly, the second guiding and fixing sleeve 14 is also equipped with a third threaded mounting hole for fixing the second insertion rod 4 to ensure that it will not loosen or shift during operation. More specifically, the longitudinal beam includes a first longitudinal beam 17, a second longitudinal beam 18, and an intermediate longitudinal beam 19. The intermediate longitudinal beam 19 is evenly spaced between the first longitudinal beam 17 and the second longitudinal beam 18. Two first guiding and fixing sleeves 13 are provided, and the two first guiding and fixing sleeves 13 are respectively welded to the lower surfaces of the first longitudinal beam 17 and the intermediate longitudinal beam 19, providing two solid support points for the first insertion rod 3 and making its insertion more stable and reliable. Similarly, two second guiding and fixing sleeves 14 are provided, and the two second guiding and fixing sleeves 14 are also respectively welded to the lower surfaces of the second longitudinal beam 18 and the intermediate longitudinal beam 19, providing the same double support guarantee for the second insertion rod 4. This double support setting not only enhances the stability of the insertion rod but also improves the load-bearing capacity and anti-deformation ability of the entire base 1. To further enhance the safety of the base 1, a fall prevention net 9 is welded to the upper surfaces of the first longitudinal beam 17, the second longitudinal beam 18, and the intermediate longitudinal beam 19. The fall prevention net 9 can not only effectively prevent the injuries caused by accidental falls of personnel but also prevent the items above from falling from this layer to the lower layer, thus avoiding potential safety risks.

[0025] In an embodiment of the present utility model, the shapes of the first steel bar leg 7 and the second steel bar leg 8 are both in the shape of a Chinese character 'tu'. The first leg sleeve 5 is sleeved on the upper end of the Chinese character 'tu'-shaped first steel bar leg 7, and the lower surface of the first leg sleeve 5 supports on the short side of the Chinese character 'tu'-shaped first steel bar leg 7. The second leg sleeve 6 is sleeved on the upper end of the Chinese character 'tu'-shaped second steel bar leg 8, and the lower surface of the second leg sleeve 6 supports on the short side of the Chinese character 'tu'-shaped second steel bar leg 8. Setting the first steel bar leg 7 and the second steel bar leg 8 in the shape of a Chinese character 'tu' makes it easier to connect with the bottom steel bars and top steel bars of the working surface floor slab, and the base 1 is supported by the upper end of the Chinese character 'tu' shape for subsequent pouring of the floor slab concrete.

[0026] Based on the above embodiments, as an optimized solution, the first insertion rod 3, the second insertion rod 4, the first leg sleeve 5, the second leg sleeve 6, the insertion sleeve 11, the column 26, the first guiding and fixing sleeve 13, the second guiding and fixing sleeve 14, the cross beam 12, the first longitudinal beam 17, the second longitudinal beam 18, and the middle longitudinal beam 19 are all made of square steel pipes. With its uniform cross-sectional shape, the square steel pipe provides extremely high bending strength and torsional stiffness, enabling the structure to maintain good stability and durability when bearing complex loads. In terms of processing, the standardized production of square steel pipes makes processes such as cutting and welding simpler and more efficient, greatly reducing the construction cost and time.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the description of this specification, the description with reference to terms such as "this embodiment", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0030] Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and simple improvements made to the substantial content of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An elevator shaft opening edge protection device, characterized in that: It includes a base and a protective frame. At the front and rear ends of the lower side of the base, a first insertion rod and a second insertion rod are inserted and fixed respectively. The first insertion rod and the second insertion rod are arranged in parallel at intervals. The first insertion rod can extend leftward. A first leg sleeve is vertically welded to the lower side of the left end of the first insertion rod. A first steel bar leg is sleeved in the first leg sleeve. The second insertion rod can extend rightward. A second leg sleeve is vertically welded to the lower side of the right end of the second insertion rod. A second steel bar leg is sleeved in the second leg sleeve. The protective frame is detachably connected to the base.

2. The elevator shaft opening edge protection device according to claim 1, characterized in that: A plug-in sleeve is vertically welded to the upper side of the base. The protective frame includes a front protective fence, a rear protective fence, a left protective fence and a right protective fence. The front protective fence, the rear protective fence, the left protective fence and the right protective fence are sleeved on the plug-in sleeve and fixed by bolts to form a barrel-shaped protective structure.

3. The elevator shaft opening edge protection device according to claim 2, characterized in that: The front protective fence, the rear protective fence, the left protective fence and the right protective fence all include a fence frame and a protective net welded inside the fence frame. The fence frame includes three columns arranged at intervals. First threaded mounting holes are provided on the lower halves of the three columns. First bolts are screwed into the threaded mounting holes. The columns are sleeved on the plug-in sleeve, and the columns are fixed to the plug-in sleeve by tightening the first bolts in the first threaded mounting holes.

4. The elevator shaft opening edge protection device according to claim 3 is characterized in that: A footrest is welded to the lower half of the fence frame.

5. The elevator shaft opening edge protection device according to claim 3, characterized in that: The base includes a cross beam and longitudinal beams welded to the upper surface of the cross beam. First guiding and fixing sleeves and second guiding and fixing sleeves are welded to the lower surface of the longitudinal beams. A second threaded mounting hole is provided in the middle of the first guiding and fixing sleeve. The first insertion rod is inserted into the first guiding and fixing sleeve and fixed by a second bolt screwed into the second threaded mounting hole. A third threaded mounting hole is provided in the middle of the second guiding and fixing sleeve. The second insertion rod is inserted into the second guiding and fixing sleeve and fixed by a third bolt screwed into the third threaded mounting hole.

6. The elevator shaft opening edge protection device according to claim 5, characterized in that: The longitudinal beams include a first longitudinal beam, a second longitudinal beam and a middle longitudinal beam. The middle longitudinal beam is evenly arranged at intervals between the first longitudinal beam and the second longitudinal beam. Two first guiding and fixing sleeves are provided. One of the first guiding and fixing sleeves is welded to the lower surface of the first longitudinal beam, and the other first guiding and fixing sleeve is welded to the lower surface of the middle longitudinal beam. Two second guiding and fixing sleeves are provided. One of the guiding and fixing sleeves is welded to the lower surface of the second longitudinal beam, and the other second guiding and fixing sleeve is welded to the lower surface of the middle longitudinal beam.

7. The elevator shaft opening edge protection device according to claim 6, characterized in that: An anti-falling net is welded to the upper surfaces of the first longitudinal beam, the second longitudinal beam and the middle longitudinal beam.

8. The elevator shaft opening edge protection device according to claim 1, characterized in that: The lengths of the first insertion rod and the second insertion rod are both the same as the width of the base.

9. The elevator shaft opening edge protection device according to claim 6, characterized in that: The shapes of the first steel bar leg and the second steel bar leg are both in the shape of a Chinese character 'tu'. The first leg sleeve is sleeved on the upper end of the 'tu'-shaped first steel bar leg, and the lower surface of the first leg sleeve supports on the short side of the 'tu'-shaped first steel bar leg. The second leg sleeve is sleeved on the upper end of the 'tu'-shaped second steel bar leg, and the lower surface of the second leg sleeve supports on the short side of the 'tu'-shaped second steel bar leg.

10. The elevator shaft opening edge protection device according to claim 9, characterized in that: The first plug rod, the second plug rod, the first leg sleeve, the second leg sleeve, the plug sleeve, the column, the first guide fixing sleeve, the second guide fixing sleeve, the cross beam, the first longitudinal beam, the second longitudinal beam and the middle longitudinal beam are all made of square steel pipes.

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