An assembled elevator shaft opening horizontal protection device

Abstract

The utility model discloses an assembled elevator shaft opening horizontal protection device, including two frame column mechanism and set up on frame column mechanism horizontal protection plate mechanism, every frame column mechanism includes rectangular square tube crossbeam, support stand and rectangular square tube limit support leg and with rectangular square tube crossbeam plug in and the support crossbeam of in -out in elevator shaft, horizontal protection plate mechanism includes a plurality of rectangular horizontal board and convex protection board of splicing with the rectangular horizontal board of being close to elevator floor door hole department of being spliced in two support crossbeam, and the wide side of a plurality of rectangular horizontal boards all have first side face protection flap through the hinge connection, and the long side of the rectangular horizontal board of being away from elevator floor door hole department has second side face protection flap through the hinge connection. The utility model discloses simple structure, and installation and disassembly convenient and fast, and the safety of four -corner protection is tight, has guaranteed the safety of the edge and the opening, can turn over and use to reduce the use cost.

Description

Technical Field

[0001] This utility model belongs to the field of horizontal protection technology for elevator shaft openings, and in particular relates to a prefabricated horizontal protection device for elevator shaft openings. Background Technology

[0002] During the construction of high-rise building structures, elevator shafts are required. Elevator shafts are structures specifically designed for elevator installation, and their core function is to provide a safe vertical passage for elevator operation. However, elevator shafts that run vertically through the floors put pressure on the construction team's work in ensuring safe and civilized construction. These openings are usually protected by erecting longitudinal and transverse steel pipes and laying formwork and square timber on top. The protective platform made by this method is usually unstable and the protection is not thorough, posing safety hazards.

[0003] Some projects use standardized elevator shaft protection platforms, which are usually manufactured by welding. They are heavy and require tower cranes for transportation, and the installation and dismantling operations are complicated. They also have low adaptability and cannot be reused.

[0004] Therefore, there is a need for a well-designed prefabricated horizontal protection device for elevator shaft openings that is easy and quick to install and disassemble, thus expanding its applicability. It provides robust protection on all sides, ensuring the safety of edges and openings, and the protective platform can be reused to reduce operating costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a prefabricated elevator shaft opening horizontal protection device that addresses the shortcomings of the prior art. It has a simple structure, reasonable design, and is easy and quick to install and disassemble, thus improving its applicability. It provides solid protection on all four sides, ensuring the safety of the edges and openings. Furthermore, the protection platform can be reused, thereby reducing the cost of use.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a prefabricated elevator shaft opening horizontal protection device, including two frame column mechanisms that are locked at the elevator floor door opening and a horizontal protection plate mechanism that is set on the frame column mechanisms and located in the elevator shaft; Each of the frame-column mechanisms includes a rectangular tube beam, a support column vertically fixed to the upper part of the rectangular tube beam, a rectangular tube limiting leg vertically fixed to the lower part of the rectangular tube beam, and a support beam that is inserted into the rectangular tube beam and extends into the elevator shaft. The horizontal protective plate mechanism includes multiple rectangular horizontal plates sequentially inserted into two supporting beams and convex protective plates inserted into the two supporting beams and close to the rectangular horizontal plates at the elevator floor door opening. The long sides of the multiple rectangular horizontal plates are arranged along the width direction inside the elevator shaft. The wide sides of the multiple rectangular horizontal plates are connected to a first side protective flap via hinges. The long sides of the rectangular horizontal plates away from the elevator floor door opening are connected to a second side protective flap via hinges.

[0007] In the above-mentioned prefabricated elevator shaft opening horizontal protection device, the bottom of the rectangular square tube beam is attached to the floor slab where the elevator landing door is located, and the rectangular square tube limiting leg is attached to the shaft wall that connects the floor slab and the interior of the elevator shaft. The support columns are vertically arranged and attached to the wall where the elevator floor doorway is located, with the top of the support columns higher than the top of the elevator floor doorway.

[0008] In the aforementioned prefabricated elevator shaft opening horizontal protection device, an upper reinforcing steel plate is fixed at the connection between the supporting column and the rectangular square tube beam, and a lower reinforcing steel plate is fixed at the connection between the rectangular square tube limiting leg and the rectangular square tube beam. Both the upper and lower reinforcing steel plates are triangular, and the supporting column and the rectangular square tube limiting leg are arranged vertically in parallel.

[0009] In the aforementioned prefabricated elevator shaft opening horizontal protection device, the rectangular square tube beam is provided with multiple external connecting holes arranged along its length direction, one end of the supporting beam is inserted into the rectangular square tube beam, and one end of the supporting beam is provided with multiple internal connecting holes arranged along its length direction. High-strength connecting bolts are inserted into the external connecting holes and the corresponding internal connecting holes.

[0010] The above-mentioned prefabricated elevator shaft opening horizontal protection device further includes two supporting beams, with each supporting beam and the rectangular square tube beam corresponding to one another. Multiple iron block slides are fixed on the supporting beam along its length direction. A rectangular frame is fixed around the bottom of the rectangular horizontal plate, and a convex frame is fixed around the bottom of the convex protective plate. The convex frame and the rectangular frame are provided with two outer square tube reinforcement sections and an inner square tube reinforcement section. The inner square tube reinforcement section is located between the two outer square tube reinforcement sections. The bottom of the outer square tube reinforcement section is arranged close to the supporting crossbeam. The outer square tube reinforcement section is provided with a sliding plug hole for inserting an iron block.

[0011] The aforementioned prefabricated elevator shaft opening horizontal protection device further includes an iron block sliding plug comprising a bottom iron plate welded to a supporting crossbeam, an iron column integrally formed with the bottom iron plate, and an iron plug head integrally formed with the iron column. The sliding plug hole includes an elongated hole and a circular through hole communicating with the elongated hole, and the iron plug head can pass through the circular through hole.

[0012] In the aforementioned prefabricated elevator shaft opening horizontal protection device, an anti-slip pad is further provided at the other end of the supporting beam, and the anti-slip pad is tightly attached to the shaft wall of the elevator shaft.

[0013] The aforementioned prefabricated elevator shaft opening horizontal protection device further includes a convex protective plate comprising an integrally formed large rectangular plate and a small rectangular plate.

[0014] This utility model has the following advantages compared with the prior art: 1. This utility model is equipped with two frame column mechanisms, which can not only realize the splicing of the horizontal protective plate mechanism, but also be fixed to the wall and floor slab at the elevator landing door opening. In this way, when the horizontal protective plate mechanism bears the load and presses down, the supporting column acts on the wall, thereby balancing the load and realizing the load-bearing protection of the horizontal protective plate mechanism.

[0015] 2. This utility model features multiple rectangular horizontal plates sequentially spliced ​​onto a supporting beam, making installation and disassembly convenient and quick. This allows for the addition or removal of rectangular horizontal plates when the depth of the elevator shaft varies by a multiple of the width of the plates, accommodating different depths within the elevator shaft wall. Furthermore, without adding or removing rectangular horizontal plates, the rotation angle of the second side protective flap can be adjusted to accommodate changes in elevator shaft depth. Additionally, the rotation angle of the first side protective flap can be adjusted to accommodate changes in elevator shaft width, thus expanding its applicability.

[0016] 3. This utility model sets up multiple first side protective flaps along the inner wall of the elevator shaft to seal the gaps between the wide sides of multiple rectangular horizontal plates and the inner wall of the elevator shaft; it also sets up second side protective flaps along the inner wall of the elevator shaft to seal the gaps between the long sides of the rectangular horizontal plates and the inner wall of the elevator shaft. The convex protective plates seal the connection between the inner wall of the elevator shaft and the floor slab. Compared with the traditional steel pipe plate construction, this provides solid protection on all four sides, ensuring the safety of the edges and openings.

[0017] In summary, this utility model is easy and quick to install and disassemble, which improves its applicability. It provides solid protection on all four sides, ensuring the safety of edges and openings. Furthermore, the protective platform can be reused, thereby reducing the cost of use.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a diagram showing the usage state of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model.

[0021] Figure 3 This is a structural schematic diagram of the frame column mechanism of this utility model.

[0022] Figure 4 This is a structural schematic diagram of the rectangular square tube beam, iron block slide, and anti-slip pad of this utility model.

[0023] Figure 5 This is a schematic diagram of the iron block sliding plug of this utility model.

[0024] Figure 6 This is a schematic diagram of the rectangular horizontal plate, the outer square tube reinforcement section, and the sliding plug hole of this utility model.

[0025] Figure 7 This is a schematic diagram of the convex protective plate of this utility model.

[0026] Figure 8 This is a schematic diagram of the structure of the sliding plug hole of this utility model.

[0027] Explanation of reference numerals in the attached figures: 1—Support column; 2—Rectangular tube limiting leg; 3—High-strength connecting bolt; 4—Supporting beam; 5—Anti-slip mat; 6—Rectangular horizontal plate; 6-1—Rectangular frame; 6-2—Outer square tube reinforcement section; 6-3—Inner square tube reinforcement section; 7—First side protective flap; 8—Hinge; 9—Second side protective flap; 10—Iron block slide; 10-1—Bottom iron plate; 10-2—Iron pillar; 10-3—Iron plug head; 11—Rectangular square tube crossbeam; 12—Upper reinforcing steel plate; 13—Lower reinforcing steel plate; 14—Sliding plug hole; 14-1—Elongated hole; 14-2—Circular through hole; 15—Convex protective plate; 15-1—Large rectangular plate; 15-2—Small rectangular plate; 16—Elevator shaft; 17—Elevator landing doorway; 18—Wall; 19—Floor slab. Detailed Implementation

[0028] like Figure 1 and Figure 2 As shown, this utility model includes two frame column mechanisms that are fixed at the elevator floor doorway 17 and a horizontal protective plate mechanism that is installed on the frame column mechanisms and located inside the elevator shaft 16. Each of the frame column mechanisms includes a rectangular tube beam 11, a support column 1 vertically fixed to the upper part of the rectangular tube beam 11, a rectangular tube limiting leg 2 vertically fixed to the lower part of the rectangular tube beam 11, and a support beam 4 inserted into the rectangular tube beam 11 and extending into the elevator shaft 16. The horizontal protective plate mechanism includes multiple rectangular horizontal plates 6 sequentially inserted into two supporting beams 4 and a convex protective plate 15 inserted into the two supporting beams 4 and close to the rectangular horizontal plates 6 at the elevator floor door opening 17. The long sides of the multiple rectangular horizontal plates 6 are arranged along the width direction inside the elevator shaft 16. The wide sides of the multiple rectangular horizontal plates 6 are connected to a first side protective flap 7 by a hinge 8. The long sides of the rectangular horizontal plates 6 away from the elevator floor door opening 17 are connected to a second side protective flap 9 by a hinge 8.

[0029] In this embodiment, the bottom of the rectangular square tube beam 11 is attached to the floor slab 19 where the elevator floor doorway 17 is located, and the rectangular square tube limiting leg 2 is attached to the shaft wall that connects the floor slab 19 and the elevator shaft 16. The support column 1 is vertically arranged and attached to the wall 18 where the elevator floor doorway 17 is located, and the top of the support column 1 is higher than the top of the elevator floor doorway 17.

[0030] like Figure 3 As shown, in this embodiment, an upper reinforcing steel plate 12 is fixed at the connection between the supporting column 1 and the rectangular tube beam 11, and a lower reinforcing steel plate 13 is fixed at the connection between the rectangular tube limiting leg 2 and the rectangular tube beam 11. Both the upper reinforcing steel plate 12 and the lower reinforcing steel plate 13 are triangular, and the supporting column 1 and the rectangular tube limiting leg 2 are arranged vertically in parallel.

[0031] In this embodiment, the rectangular square tube beam 11 is provided with a plurality of external connecting holes arranged along its length direction, one end of the supporting beam 4 is inserted into the rectangular square tube beam 11, and one end of the supporting beam 4 is provided with a plurality of internal connecting holes arranged along its length direction. High-strength connecting bolts 3 are inserted through the external connecting holes and the corresponding internal connecting holes.

[0032] like Figure 6 As shown, in this embodiment, there are two supporting beams 4. The supporting beams 4 and the rectangular square tube beams 11 correspond one-to-one. Multiple iron block slides 10 are fixed on the supporting beams 4 along their length. A rectangular frame 6-1 is fixed around the bottom of the rectangular horizontal plate 6. A convex frame is fixed around the bottom of the convex protective plate 15. The convex frame and rectangular frame 6-1 are provided with two outer square tube reinforcement sections 6-2 and inner square tube reinforcement sections 6-3. The inner square tube reinforcement section 6-3 is located between the two outer square tube reinforcement sections 6-2. The bottom of the outer square tube reinforcement section 6-2 is close to the supporting beam 4. The outer square tube reinforcement section 6-2 is provided with a sliding plug hole 14 for inserting the iron block sliding plug 10.

[0033] like Figure 5 and Figure 8 As shown, in this embodiment, the iron block slide 10 includes a bottom iron plate 10-1 welded to the supporting crossbeam 4, an iron column 10-2 integrally formed with the bottom iron plate 10-1, and an iron plug head 10-3 integrally formed with the iron column 10-2. The sliding plug hole 14 includes an elongated hole 14-1 and a circular through hole 14-2 communicating with the elongated hole 14-1, and the iron plug head 10-3 can pass through the circular through hole 14-2.

[0034] like Figure 4 As shown in this embodiment, the other end of the supporting beam 4 is provided with an anti-slip pad 5, which is tightly attached to the shaft wall of the elevator shaft 16.

[0035] like Figure 7 As shown, in this embodiment, the convex protective plate 15 includes an integrally formed large rectangular plate 15-1 and a small rectangular plate 15-2.

[0036] In this embodiment, in actual use, the long sides of the large rectangular plate 15-1 and the small rectangular plate 15-2 are arranged along the width direction inside the elevator shaft 16.

[0037] In this embodiment, during actual use, the upper reinforcing steel plate 12 is located on the front side of the connection between the supporting column 1 and the rectangular tube beam 11, and the lower reinforcing steel plate 13 is located on the rear side of the connection between the rectangular tube limiting leg 2 and the rectangular tube beam 11. The front side of the rectangular tube beam 11 is attached to the shaft wall that connects the floor slab 19 and the elevator shaft 16. The bottom of the rectangular tube beam 11 is attached to the floor slab 19 near the elevator shaft 16, thereby forming an L-shaped locking limit at the bottom.

[0038] In this embodiment, during actual use, the spacing between the multiple iron block slides 10 is the same, so that the multiple rectangular horizontal plates 6 are evenly distributed along the supporting beam 4, and the multiple rectangular horizontal plates 6 are close together to avoid displacement changes.

[0039] In this embodiment, in actual use, two frame column mechanisms are set up, which can not only realize the splicing of the horizontal protective plate mechanism, but also be fixed to the wall and floor slab at the elevator landing door 17. In this way, when the horizontal protective plate mechanism bears the load and presses down, the supporting column 1 acts on the wall 18, thereby balancing the load and realizing the load-bearing protection of the horizontal protective plate mechanism.

[0040] In this embodiment, multiple rectangular horizontal plates 6 are sequentially spliced ​​on the supporting beam 4. In this way, when the depth of the inner shaft wall of the elevator shaft 16 changes by a multiple of the width of the rectangular horizontal plates 6, the rectangular horizontal plates 6 can be increased or decreased to adapt to different depths of the inner shaft wall of the elevator shaft 16.

[0041] In this embodiment, multiple first side protective flaps 7 are arranged along the inner shaft wall of the elevator shaft 16, thereby sealing the gap between the wide side of multiple rectangular horizontal plates 6 and the inner shaft wall of the elevator shaft 16. The rotation angle of the second side protective flaps is adjusted to adapt to changes in the width of the elevator shaft. The second side protective flap 9 is installed along the inner wall of the elevator shaft 16 to seal the gap between the long side of the rectangular horizontal plate 6 and the inner wall of the elevator shaft 16. The rotation angle of the second side protective flap can be adjusted to adapt to changes in the depth of the elevator shaft. By sealing the connection between the inner shaft wall of the elevator shaft 16 and the floor slab 19 with the convex protective plate 15, compared with the traditional steel pipe plate construction, the surrounding protection is more solid, ensuring the safety of the edges and openings.

[0042] In this embodiment, the width of the elevator floor doorway 17 is smaller than the width of the elevator shaft 16, so that the connection between the inner shaft wall of the elevator shaft 16 and the floor slab 19 forms a convex shape.

[0043] In this embodiment, the rectangular tube limiting leg 2 is set to be positioned inside the elevator shaft 16 to ensure that the device is installed in place by means of the rectangular tube limiting leg 2, thereby ensuring that the supporting column 1 is installed in place. The support column 1 is attached to the upper limit of the wall 18 where the elevator landing doorway 17 is located. When the horizontal protective plate mechanism bears the load and presses down, the support column 1 acts on the wall 18 to balance the load and realize the load-bearing protection of the horizontal protective device.

[0044] In this embodiment, an upper reinforcing steel plate 12 and a lower reinforcing steel plate 13 are provided to strengthen the connection between the supporting column 1 and the rectangular tube beam 11, as well as the connection between the rectangular tube limiting leg 2 and the rectangular tube beam 11, thereby improving the overall stability of the frame column mechanism.

[0045] In this embodiment, a support beam 4 is inserted into a rectangular square tube beam 11, thereby adjusting the length of the support beam 4 extending into the elevator shaft 16 to accommodate different depths of the elevator shaft 16.

[0046] In actual use, it should be noted that the gap between two adjacent external connecting holes is the same as the gap between two adjacent internal connecting holes. As long as the connection requirements are met, the gap can be adjusted according to actual requirements and is not specifically limited. In addition, there are three corresponding external and internal connecting holes. The connection stability is improved by three high-strength connecting bolts 3. The number of these connecting bolts can be adjusted according to actual requirements and is not specifically limited.

[0047] like Figure 6 As shown, in this embodiment, the rectangular frame 6-1 and the rectangular horizontal plate 6 are adapted to each other in shape. Similarly, the convex frame and the convex protective plate 15 are adapted to each other in shape. The convex frame is not shown in the figure.

[0048] In this embodiment, both the rectangular frame 6-1 and the convex frame are welded from square tubes. In this embodiment, during specific implementation, the top and bottom of the outer square tube reinforcement section 6-2 are provided with sliding plug holes 14. During actual insertion, the iron block sliding plug 10 is inserted through the circular through hole 14-2 in the bottom sliding plug hole 14 and slides along the elongated hole 14-1 of the sliding plug hole 14, so that the iron post 10-2 of the iron block sliding plug 10 is stuck in the semi-circular hole at the end of the elongated hole 14-1, and the iron plug head 10-3 is located inside the outer square tube reinforcement section 6-2.

[0049] In this embodiment, for example, the bottom iron plate 10-1 is a circular iron plate with a diameter of 40mm, the iron column 10-2 has a diameter of 14mm, and the maximum diameter of the iron plug head 10-3 is 25mm. The diameter of the circular through hole 14-2 is 30mm, the width of the elongated hole 14-1 is 16mm, and the diameter of the semi-circular hole at the end of the elongated hole 14-1 is 16mm; the distance between the center of the circular through hole 14-2 and the center of the semi-circular hole is 60mm.

[0050] In this embodiment, the diameter of the circular through hole 14-2 is slightly larger than the maximum diameter of the iron plug head 10-3, so that the iron plug head 10-3 of the iron block slide plug 10 can be inserted through the circular through hole 14-2 in the bottom slide plug hole 14; the width of the elongated hole 14-1 is slightly larger than the diameter of the iron pillar 10-2, so that after the iron plug head 10-3 of the iron block slide plug 10 is inserted, the iron pillar 10-2 slides along the elongated hole 14-1 of the slide plug hole 14, and the iron pillar 10-2 is stuck in the semi-circular hole at the end of the elongated hole 14-1.

[0051] In this embodiment, during specific implementation, the iron block 10 is inserted into the slid hole 14, thereby enabling multiple rectangular horizontal plates 6 and convex protective plates 15 to be spliced ​​onto the support beam 4. The splicing assembly method is convenient and quick to install and disassemble, and facilitates size adjustment.

[0052] In this embodiment, the width of the elevator shaft 16 is greater than the width of the elevator floor doorway 17, so a convex protective plate 15 is set so that the large rectangular plate 15-1 in the convex protective plate 15 is located inside the elevator shaft 16 to block it, and the small rectangular plate 15-2 is located at the elevator floor doorway 17 connected to the elevator shaft 16, and the small rectangular plate 15-2 extends to the floor slab 19 to block it tightly.

[0053] In this embodiment, when the width of the elevator shaft opening in a high-rise residential building is 2000mm to 2200mm and the depth is 2200mm to 2600mm, the length of the rectangular horizontal plate 6 can be 2000mm. The rotation angle of the first side protective flaps on both sides can be adjusted to adapt to the change in the width of the elevator shaft from 2000mm to 2200mm.

[0054] The width of the rectangular horizontal plate 6 can be selected as 300mm. After splicing 6 rectangular horizontal plates 6 and adding the convex protective plate 15, it can meet the requirements of an elevator shaft depth of 2200mm. If the elevator shaft depth is greater than 2200mm, rectangular horizontal plates can be added for every 300mm increase to accommodate different depths of the elevator shaft wall. Alternatively, after splicing 7 rectangular horizontal plates 6 and adding the convex protective plate 15, it can meet the requirements of an elevator shaft depth of 2500mm. If the elevator shaft depth is less than 2500mm, rectangular horizontal plates can be reduced for every 300mm decrease to accommodate different depths of the elevator shaft wall. In addition, when the change is less than 300mm, the second side protective flap can be rotated to adjust the angle without adding or removing rectangular horizontal plates to adapt to changes in elevator shaft depth.

[0055] In this embodiment, the width and length of the rectangular horizontal plate 6, the length and width of the first side protective flap and the second side protective flap, and the width and length of the convex protective plate 15 are not specifically limited, as long as they meet the actual elevator shaft size assembly requirements.

[0056] In practical use, multiple rectangular horizontal plates 6 and a convex protective plate 15 are sequentially inserted onto the supporting beam 4. Then, the horizontal protective device is moved and tilted so that the rectangular square tube limiting legs 2 are first attached to the shaft wall connecting the floor slab 19 and the elevator shaft 16. The supporting columns 1 are vertically arranged and attached to the wall 18 where the elevator floor door 17 is located. In this way, when the horizontal protective plate mechanism bears the load and presses down, the supporting columns 1 act on the wall 18 to balance the load and realize the load-bearing protection of the horizontal protective plate mechanism. Compared with the standardized elevator shaft protection platform, the installation and disassembly are convenient and quick. The first side protective flap 7 is flipped over, and multiple first side protective flaps 7 are arranged along the long side of the inner shaft wall of the elevator shaft 16, thereby sealing the gap between the wide side of multiple rectangular horizontal plates 6 and the inner shaft wall of the elevator shaft 16; the second side protective flap 9 is flipped over, thereby sealing the gap between the long side of the rectangular horizontal plate 6 and the inner shaft wall of the elevator shaft 16, and the connection between the inner shaft wall of the elevator shaft 16 and the floor slab 19 is sealed by the convex protective plate 15. Compared with the traditional steel pipe plate construction, this kind of protection is solid all around, ensuring the safety of the edges and openings.

[0057] In summary, this utility model has a simple structure, reasonable design, convenient and quick installation and disassembly, improved applicability, and provides solid protection on all sides, ensuring the safety of edges and openings. Furthermore, the protective platform can be reused, thereby reducing usage costs.

[0058] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A prefabricated elevator shaft opening horizontal protection device, characterized by: It includes two frame column mechanisms that are fixed at the elevator landing doorway (17) and a horizontal protective plate mechanism that is installed on the frame column mechanisms and located in the elevator shaft (16); Each of the frame column mechanisms includes a rectangular tube beam (11), a support column (1) vertically fixed to the upper part of the rectangular tube beam (11), a rectangular tube limiting leg (2) vertically fixed to the lower part of the rectangular tube beam (11), and a support beam (4) inserted into the rectangular tube beam (11) and extending into the elevator shaft (16). The horizontal protective plate mechanism includes multiple rectangular horizontal plates (6) sequentially inserted on two supporting beams (4) and a convex protective plate (15) inserted on the two supporting beams (4) and close to the rectangular horizontal plates (6) at the elevator floor door opening (17). The long sides of the multiple rectangular horizontal plates (6) are arranged along the width direction inside the elevator shaft (16). The wide sides of the multiple rectangular horizontal plates (6) are connected to a first side protective flap (7) by a hinge (8). The long sides of the rectangular horizontal plates (6) away from the elevator floor door opening (17) are connected to a second side protective flap (9) by a hinge (8).

2. An assembled elevator shaft opening horizontal protection device according to claim 1, characterized in that: The bottom of the rectangular square tube beam (11) is attached to the floor slab (19) where the elevator floor door opening (17) is located, and the rectangular square tube limiting leg (2) is attached to the shaft wall that connects the floor slab (19) and the elevator shaft (16). The support column (1) is vertically arranged and attached to the wall (18) where the elevator floor doorway (17) is located. The top of the support column (1) is higher than the top of the elevator floor doorway (17).

3. An assembled elevator shaft opening horizontal protection device according to claim 1, characterized in that: An upper reinforcing steel plate (12) is fixed at the connection between the supporting column (1) and the rectangular tube beam (11), and a lower reinforcing steel plate (13) is fixed at the connection between the rectangular tube limiting leg (2) and the rectangular tube beam (11). Both the upper reinforcing steel plate (12) and the lower reinforcing steel plate (13) are triangular, and the supporting column (1) and the rectangular tube limiting leg (2) are arranged vertically in parallel.

4. An assembled elevator shaft opening horizontal protection device according to claim 3, characterized in that: The rectangular square tube beam (11) is provided with a plurality of external connecting holes arranged along its length direction. One end of the supporting beam (4) is inserted into the rectangular square tube beam (11). One end of the supporting beam (4) is provided with a plurality of internal connecting holes arranged along its length direction. High-strength connecting bolts (3) are inserted through the external connecting holes and the corresponding internal connecting holes.

5. An assembled elevator shaft opening horizontal protection device according to claim 1, characterized in that: There are two support beams (4). The support beams (4) and the rectangular square tube beams (11) correspond one-to-one. Multiple iron block plugs (10) are fixed on the support beams (4) along their length direction. A rectangular frame (6-1) is fixed around the bottom of the rectangular horizontal plate (6). A convex frame is fixed around the bottom of the convex protective plate (15). The convex frame and the rectangular frame (6-1) are provided with two outer square tube reinforcement sections (6-2) and an inner square tube reinforcement section (6-3). The inner square tube reinforcement section (6-3) is located between the two outer square tube reinforcement sections (6-2). The bottom of the outer square tube reinforcement section (6-2) is arranged close to the supporting beam (4). The outer square tube reinforcement section (6-2) is provided with a sliding plug hole (14) for inserting an iron block sliding plug (10).

6. An assembled elevator shaft opening horizontal protection device according to claim 5, characterized in that: The iron block slide (10) includes a bottom iron plate (10-1) welded to the support beam (4), an iron column (10-2) integrally formed with the bottom iron plate (10-1), and an iron plug head (10-3) integrally formed with the iron column (10-2). The sliding plug hole (14) includes an elongated hole (14-1) and a circular through hole (14-2) communicating with the elongated hole (14-1), and the iron plug head (10-3) can pass through the circular through hole (14-2).

7. An assembled elevator shaft opening horizontal protection device according to claim 4, characterized in that: The other end of the supporting beam (4) is provided with an anti-slip pad (5), which is tightly attached to the shaft wall of the elevator shaft (16).

8. An assembled elevator shaft opening horizontal protection device according to claim 5, characterized in that: The convex protective plate (15) includes an integrally formed large rectangular plate (15-1) and a small rectangular plate (15-2).

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