A construction site protection device
Patent Information
- Application Number
- CN202522249404.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-24
AI Technical Summary
[0003]然而,在实践中,传统的护栏通常采用焊接、多螺栓紧固等固定方式,在更换时需拆卸大量螺栓或切割焊点,操作步骤多,耗费人力和时间,而且施工现场不同宽度的通道需求,需专门定制对应尺寸的门框,导致使用成本较高
[0016] 1. This utility model uses bolts to fix the mounting base plate to the location requiring protection. Then, depending on the actual conditions of the construction site, a closed baffle or a perforated protective plate can be selected. Alternatively, a closed baffle and a perforated protective plate can be used together. The closed baffle and the perforated protective plate are placed between two columns, and the triangular plugs at both ends of the closed baffle and the perforated protective plate are inserted into the positioning slots at appropriate positions to fix the closed baffle or the perforated protective plate to the fixed support column. Finally, the end baffle is covered on the top of the column and fixed with locking bolts. This plug-in connection makes it convenient for workers to replace the closed baffle and the perforated protective plate at any time, reducing the cost of use.
Smart Images

Figure CN224859331U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of construction site protection technology, and more specifically to a construction site protection device. Background Technology
[0002] Construction site safety devices are various facilities that ensure the safety of personnel and equipment and prevent accidents such as falls and falling objects. They are the core barrier for construction safety. Among them, protective fences are the most widely used. The core function of construction site protective fences is to delineate dangerous areas from safe areas, physically preventing unauthorized personnel from entering the work area, while protecting the safety of workers and equipment. Fences not only provide external protection but also provide safety guarantees for internal construction workers. Setting up fences at foundation pits, slopes, and edges can effectively prevent workers from accidentally falling. Some fences can also prevent tools and materials from falling from heights, reducing the risk of falling objects.
[0003] However, in practice, traditional guardrails are usually fixed by welding and multiple bolts. When replacing them, a large number of bolts need to be removed or welds need to be cut. The operation is complicated, which consumes manpower and time. Moreover, the different widths of passages required on the construction site require specially customized door frames of corresponding sizes, resulting in high usage costs. Utility Model Content
[0004] The purpose of this utility model is to provide a protective device for construction sites. Utilizing a sliding fit between the right and left door frames, the width of the adjustable door frame can be adjusted, making it suitable for various size applications. This eliminates the need for custom-made baffles, reducing operating costs. Furthermore, it allows for the selection of either enclosed or perforated protective panels based on site conditions, enhancing its protective effect. This addresses the technical problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A construction site safety device includes fixed support columns arranged in a rectangular array, wherein an adjustable door frame is provided between any two of the fixed support columns.
[0007] The adjustable door frame has a right door frame and a left door frame that are staggered together, and the ends of the right door frame and the left door frame that are far apart from each other are both equipped with a positioning rod.
[0008] As a further technical solution of this utility model, a closed baffle and / or a hollow protective plate are installed in a rectangular array between the two fixed support columns, wherein both ends of the closed baffle and the hollow protective plate are integrally provided with triangular insert rods.
[0009] As a further technical solution of this utility model, the fixed support column includes a column with positioning slots arranged in a ring array on the column. One end of the column is integrally provided with a mounting base plate, while the other end of the column is provided with bolt connection holes.
[0010] As a further technical solution of this utility model, the right door frame is provided with a symmetrical dovetail-shaped sliding protrusion on the side near the left door frame, and the left door frame is provided with a dovetail-shaped groove corresponding to the dovetail-shaped sliding protrusion on the side near the right door frame, and the dovetail-shaped sliding protrusion and the dovetail-shaped groove slide together.
[0011] As a further technical solution of this utility model, the triangular plug and the positioning plug are respectively inserted into the positioning slot, and an end baffle is placed at the top of the column, and a locking bolt passes through the inner side of the end baffle, and the end of the locking bolt is threaded into the bolt connection hole.
[0012] As a further technical solution of this utility model, the inner side of the adjustable door frame is provided with a switch protection door, wherein the switch protection door includes a right door panel in the right door frame and a left door panel in the left door frame, and the right door panel and the left door panel are parallel to each other.
[0013] As a further technical solution of this utility model, both ends of the right door panel and the left door panel are fixedly connected with cross guard nets, and a through locking groove is opened in the middle position of both the right door panel and the left door panel.
[0014] As a further technical solution of this utility model, the right door panel and the left door panel are symmetrically fixedly connected to the ends of the doors that are far apart from each other, and the right door panel and the left door panel are rotatably engaged with the right door frame and the left door frame respectively through the positioning shafts.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model uses bolts to fix the mounting base plate to the location requiring protection. Then, depending on the actual conditions of the construction site, a closed baffle or a perforated protective plate can be selected. Alternatively, a closed baffle and a perforated protective plate can be used together. The closed baffle and the perforated protective plate are placed between two columns, and the triangular plugs at both ends of the closed baffle and the perforated protective plate are inserted into the positioning slots at appropriate positions to fix the closed baffle or the perforated protective plate to the fixed support column. Finally, the end baffle is covered on the top of the column and fixed with locking bolts. This plug-in connection makes it convenient for workers to replace the closed baffle and the perforated protective plate at any time, reducing the cost of use.
[0017] 2. According to the distance between the two columns, the distance between the right and left door frames is adjusted on both sides. The positioning rods at the ends of the right and left door frames are inserted into the positioning slots on the sides of the corresponding columns, so that the adjustable door frame can be adjusted according to the width of the passage reserved at the construction site without the need for special customization, which further reduces the cost of use. In addition, the right and left door panels are fixedly connected to the inside of the right and left door frames, respectively, which increases the protective effect during use.
[0018] 3. In this utility model, a dovetail-shaped sliding protrusion is provided on the side of the left door frame near the right door frame, and a dovetail-shaped sliding groove is provided at the corresponding position on the left door frame. The left door frame and the right door frame are connected together through the sliding cooperation between the dovetail-shaped sliding grooves. At the same time, the left door frame and the right door frame can be limited to slide horizontally, thereby improving the protective effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model in use.
[0020] Figure 2 This utility model Figure 1 Enlarged schematic diagram of part A.
[0021] Figure 3 This is a schematic diagram showing the disassembled structure of the adjustable door frame and the switchable safety door in this utility model.
[0022] Figure 4 This utility model Figure 3 Enlarged schematic diagram of part B.
[0023] Figure 5 This utility model Figure 1 A partial structural diagram.
[0024] Figure 6 This utility model Figure 5 Enlarged schematic diagram of part C.
[0025] Figure 7 This utility model Figure 5 Enlarged schematic diagram of part D.
[0026] Figure 8 This is a three-dimensional structural diagram of the adjustable door frame in this utility model.
[0027] Figure 9 This utility model Figure 8 Enlarged schematic diagram of part E.
[0028] In the picture:
[0029] 1-Fixed support column, 11-Column, 12-Mounting base plate, 13-Positioning slot, 14-Bolt connection hole, 2-Enclosed baffle, 3-Hollowed protective plate, 4-Adjustable door frame, 41-Right side door frame, 42-Left side door frame, 43-Positioning rod, 44-Dovetail sliding protrusion, 45-Dovetail sliding groove, 5-Opening and closing protective door, 51-Right side door panel, 52-Cross protective net, 53-Left side door panel, 54-Positioning shaft, 55-Through locking groove, 6-End baffle, 7-Locking bolt, 8-Triangular rod. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figure 1-9 This utility model provides a construction site protection device, including fixed support columns 1 arranged in a rectangular array, wherein an adjustable door frame 4 is provided between any two of the fixed support columns 1;
[0032] The adjustable door frame 4 has a right door frame 41 and a left door frame 42 that are arranged in an interleaved manner. The right door frame 41 and the left door frame 42 are both provided with a positioning rod 43 at the ends that are far apart from each other. The right door frame 41 and the left door frame 42 can be fixed to the side of the right door frame 41 by means of the positioning rod 43.
[0033] This plug-in connection is more stable than the existing pin-and-pin connection, and the connection will not loosen under upward force, thus improving the stability of the connection.
[0034] Furthermore, a closed baffle 2 and / or a hollow protective plate 3 are installed in a rectangular array between the two fixed support columns 1, wherein both ends of the closed baffle 2 and the hollow protective plate 3 are integrally provided with triangular insert rods 8.
[0035] By adopting the above technical solution, the closed baffle 2 or the perforated protective plate 3 can be selected according to the actual situation of the construction site. Alternatively, the closed baffle 2 and the perforated protective plate 3 can be used together and placed between the two columns 11. Through the cooperation of the closed baffle 2 and the perforated protective plate 3, the applicability of the equipment can be increased. Either the fully enclosed closed baffle 2 or the perforated protective plate 3 which is easy to hang safety ropes can be selected, thus increasing the functionality.
[0036] Furthermore, the fixed support column 1 includes a column 11, on which positioning slots 13 are arranged in a ring array. One end of the column 11 is integrally provided with a mounting base plate 12, while the other end of the column 11 is provided with bolt connection holes 14.
[0037] More specifically, the right door frame 41 is symmetrically provided with a dovetail-shaped sliding protrusion 44 on the side near the left door frame 42, while the left door frame 42 is provided with a dovetail-shaped groove 45 corresponding to the dovetail-shaped sliding protrusion 44 on the side near the right door frame 41, and the dovetail-shaped sliding protrusion 44 and the dovetail-shaped groove 45 slide in cooperation.
[0038] Furthermore, the triangular plug 8 and the positioning plug 43 are respectively inserted into the positioning slot 13. An end baffle 6 is placed at the top of the column 11, and a locking bolt 7 passes through the inner side of the end baffle 6. The end of the locking bolt 7 is threaded into the bolt connection hole 14.
[0039] By adopting the above technical solution, the mounting base plate 12 is fixed to the position requiring protection by bolts. Then, the triangular plugs 8 at both ends of the closed baffle 2 and the hollow protective plate 3 are inserted into the positioning slots 13 at appropriate positions to fix the closed baffle 2 or the hollow protective plate 3 to the fixed support column 1. Finally, the end baffle 6 is covered on the top of the column 11 and fixed with locking bolts 7. This plug-in connection makes it convenient for workers to replace the closed baffle 2 and the hollow protective plate 3 at any time, reducing the cost of use.
[0040] Furthermore, the adjustable door frame 4 is provided with a switchable protective door 5 on its inner side. The switchable protective door 5 includes a right door panel 51 in the right door frame 41 and a left door panel 53 in the left door frame 42, and the right door panel 51 and the left door panel 53 are parallel to each other.
[0041] Furthermore, both ends of the right door panel 51 and the left door panel 53 are fixedly connected with cross guard nets 52, and a through locking groove 55 is provided in the middle position of both the right door panel 51 and the left door panel 53.
[0042] More specifically, the right door panel 51 and the left door panel 53 are symmetrically fixedly connected to the ends of each other, and the right door panel 51 and the left door panel 53 are rotatably engaged with the right door frame 41 and the left door frame 42 respectively through the positioning shafts 54.
[0043] By adopting the above technical solution, the distance between the right door frame 41 and the left door frame 42 is adjusted according to the distance between the two columns 11. The positioning rods 43 at the ends of the right door frame 41 and the left door frame 42 are respectively inserted into the positioning slots 13 on the sides of the corresponding columns 11. This allows the adjustable door frame 4 to be adjusted according to the width of the passage reserved at the construction site without the need for additional special customization, further reducing the cost of use. In addition, the right door panel 51 and the left door panel 53 are respectively fixedly connected to the inner sides of the right door frame 41 and the left door frame 42, increasing the protective effect during use.
[0044] Furthermore, the closed baffle 2 has grooves arranged in a rectangular array on both sides to reduce its own weight, and reinforcing ribs are formed between two adjacent grooves to reduce the weight of the closed baffle 2 without affecting its structural strength.
[0045] Furthermore, the right door frame 41 and the left door frame 42, as well as the right door panel 51 and the left door panel 53, are respectively arranged in an alternating manner, wherein the positioning rods 43 at the ends of the right door frame 41 and the left door frame 42 are arranged symmetrically to each other.
[0046] By adopting the above technical solution, a dovetail-shaped sliding protrusion 44 is provided on the side of the left door frame 42 near the right door frame 41, and a dovetail-shaped groove 45 is provided at the corresponding position of the left door frame 42. Through the sliding cooperation between the dovetail-shaped groove 45 and the right door frame 41, the left door frame 42 and the right door frame 41 are connected together. At the same time, the left door frame 42 and the right door frame 41 can be limited, so that the left door frame 42 and the right door frame 41 can only slide horizontally, thereby improving the protection effect.
[0047] The working principle of this utility model is as follows: First, the mounting base plate 12 is fixed to the position requiring protection using bolts. Then, depending on the actual conditions of the construction site, either a closed baffle 2 or a perforated protective plate 3 is selected. Alternatively, closed baffle 2 and perforated protective plate 3 can be used in combination. The closed baffle 2 and perforated protective plate 3 are placed between two columns 11, and the triangular inserts 8 at both ends of the closed baffle 2 and perforated protective plate 3 are inserted into the appropriate positioning slots 13. The closed baffle 2 or perforated protective plate 3 is then fixed to the fixed support column 1. Finally, the end baffle 6 is placed over the top of the column 11, and the end of the locking bolt 7 is threaded through the end baffle 6 and then threaded into the bolt connection hole 14. The top of the positioning slot 13 is blocked by the end baffle 6. At the same time, the width between the right door frame 41 and the left door frame 42 is adjusted according to the reserved channel width. When the left door frame 42 slides on the side of the right door frame 41, the dovetail sliding protrusion 44 on the side of the left door frame 42 and the dovetail sliding groove 45 on the side of the right door frame 41 slide in only one direction. The right door panel 51 and the cross guard net 52 are respectively rotated and fitted on the inner side of the right door frame 41 and the left door frame 42, forming a double protective door structure to improve the protective effect. The structure is simple, the operation is very convenient, and the manual labor intensity is effectively reduced.
[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A protective device for construction sites, characterized in that: It includes fixed support columns (1) arranged in a rectangular array, wherein an adjustable door frame (4) is provided between any two of the fixed support columns (1); The adjustable door frame (4) has a right door frame (41) and a left door frame (42) that are staggered together, and the right door frame (41) and the left door frame (42) are both provided with a positioning rod (43) at the ends that are far apart from each other. The right door frame (41) is symmetrically provided with a dovetail-shaped sliding protrusion (44) on the side near the left door frame (42), while the left door frame (42) is provided with a dovetail-shaped groove (45) corresponding to the dovetail-shaped sliding protrusion (44) on the side near the right door frame (41), and the dovetail-shaped sliding protrusion (44) and the dovetail-shaped groove (45) slide together.
2. The construction site protection device according to claim 1, characterized in that: Between the two fixed support columns (1), a closed baffle (2) and / or a hollow protective plate (3) are installed in a rectangular array. Both ends of the closed baffle (2) and the hollow protective plate (3) are integrally provided with triangular inserts (8).
3. The construction site protection device according to claim 2, characterized in that: The fixed support column (1) includes a column (11), and the column (11) has positioning slots (13) arranged in a ring array. One end of the column (11) is integrally provided with a mounting base plate (12), and the other end of the column (11) is provided with bolt connection holes (14).
4. The construction site protection device according to claim 3, characterized in that: The triangular plug (8) and the positioning plug (43) are respectively inserted into the positioning slot (13). The top of the column (11) is provided with an end baffle (6), and the inner side of the end baffle (6) is penetrated by a locking bolt (7), and the end of the locking bolt (7) is threaded into the bolt connection hole (14).
5. The construction site protection device according to claim 1, characterized in that: The adjustable door frame (4) is provided with a switch protection door (5) on its inner side. The switch protection door (5) includes a right door panel (51) in the right door frame (41) and a left door panel (53) in the left door frame (42), and the right door panel (51) and the left door panel (53) are parallel to each other.
6. The construction site protection device according to claim 5, characterized in that: Both ends of the right door panel (51) and the left door panel (53) are fixedly connected with cross guard nets (52), and both the right door panel (51) and the left door panel (53) have through locking grooves (55) in the middle.
7. The construction site protection device according to claim 6, characterized in that: The right door panel (51) and the left door panel (53) are symmetrically fixedly connected to the ends of the doors that are far apart from each other, and the right door panel (51) and the left door panel (53) are rotatably engaged with the right door frame (41) and the left door frame (42) respectively through the positioning shafts (54).