Safety steel structure construction rack

Abstract

The utility model discloses a safe steel structure construction rack relates to steel structure construction technical field, including the main frame of bottom, the top of main frame is provided with the pedal, and the pedal includes the base plate fixed in the top of main frame, and the top of base plate is installed with the expansion plate of the position of being able to adjust along its left and right direction, and the front and back sides of expansion plate are installed with a folding protection frame respectively. The utility model discloses adjustable pedal structure adaptability is strong, and realizes expansion plate range adjustment through dovetail guide block and guide groove cooperation, and pedal total width extension, and adapt bigger steel structure construction of span, and do not have to move main frame, more convenient and easy, and protection frame can fold, reduce the space of whole rack occupation, and protection frame moves along with expansion plate movement, and the suitability is better.

Description

Technical Field

[0001] This utility model relates to the field of steel structure construction technology, specifically a safe steel structure construction platform. Background Technology

[0002] Construction platforms are one of the core pieces of equipment for ensuring the safety and efficiency of workers operating at heights. A search revealed that, for example, Chinese patent (application number: CN202321646130.3) discloses a steel structure construction platform with an anti-slip mechanism. Through the coordinated use of casters, connecting plates, fixing sleeves, threaded rods, a throttle, and anti-slip blocks, the casters can push the device to the designated construction location. After movement, the worker rotates the throttle, causing the threaded rod to rotate and lower the anti-slip blocks until all the anti-slip blocks are firmly in contact with the ground. This prevents the support frame from slipping during use, improving construction safety.

[0003] However, the above-mentioned patent has obvious defects: the pedal adopts an integrated fixed structure with a fixed width. When the span of the construction object is large, the workers need to move the entire device, which is very troublesome, time-consuming and labor-intensive. At the same time, its protective frame is a welded fixed frame structure that cannot be folded, resulting in the platform occupying a large space. Therefore, the above-mentioned existing technology needs to be restructured. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a safe steel structure construction platform, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A safe steel structure construction platform includes a main frame at the bottom, a footboard at the top of the main frame, the footboard including a base plate fixed to the top of the main frame, an expansion plate that can be adjusted in the left and right direction installed on the top of the base plate, and a foldable protective frame installed on the front and rear sides of the expansion plate respectively.

[0006] To enable the sliding of the expansion plate, a guide block is fixed on the top of the base plate near its front and rear sides. The vertical cross-section of the guide block is dovetail-shaped. A guide groove is opened on the front and rear sides of the bottom of the expansion plate. The guide groove slides with the guide block. The two ends of the guide groove are closed. To facilitate the rotation of the protective frame while standing on the pedal, a gap is left between the left and right ends of the expansion plate and the left and right ends of the base plate.

[0007] Specifically, in this utility model, the protective frame includes a handrail, with several equally spaced stops fixed on one side of the handrail. The free ends of the stops are rotatably mounted on the side of the expansion plate. Several equally spaced locking structures for locking the protective frame are provided on the base plate.

[0008] To accommodate the protective frame, a main slot is provided in the middle of the top of the expansion plate. The handrails on the two protective frames are locked in the main slot. Several secondary slots are provided at equal intervals from the main slot to the side of the expansion plate. The secondary slots cooperate with the stop bars on the protective frame. To facilitate the rotation of the protective frame, both ends of the handrails extend out of the ends of the main slots. The free end of each stop bar extends out of the secondary slot and is connected to its corresponding locking structure.

[0009] To lock the protective frame, the locking structure includes an L-shaped mounting plate. The free end of the horizontal plate of the mounting plate is fixed to the base plate, and the free end of the vertical plate is arranged upward. Two symmetrically arranged fixing plates are provided at the outer end of each sub-slot. A round shaft is fixed between the two fixing plates. A round hole is provided on the end of the stop rod that extends out of the sub-slot. The round hole is rotatably engaged with the round shaft. A horizontally placed screw hole is provided on the side plate of the mounting plate. A screw hole is also provided on the end of the stop rod that extends out of the sub-slot. After the stop rod is rotated to vertical, the screw hole on it is arranged opposite to the screw hole on the mounting plate. It also includes a screw that is threaded into the screw hole.

[0010] Compared with the prior art, this utility model has the following advantages: the adjustable pedal structure has strong adaptability. The expansion range can be adjusted by the cooperation of the dovetail guide block and the guide groove. The total width of the pedal is expanded, which can adapt to the construction of steel structures with larger spans. It is more convenient and saves time without having to move the main frame. The protective frame can be folded to reduce the space occupied by the entire platform. At the same time, the protective frame moves with the expansion plate, making it more applicable. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the main view of this utility model; Figure 2 This is a partial structural schematic diagram of the side view of this utility model; Figure 3 This is a perspective view of the pedal of this utility model; Figure 4 This is a partial perspective view of the pedal of this utility model; Figure 5 This is a perspective view of the substrate of this utility model; Figure 6 The three-dimensional expansion plate of this utility model Figure 1 ; Figure 7 The three-dimensional expansion plate of this utility model Figure 2 ; Figure 8 This is a partial perspective view of the protective frame of this utility model; Figure 9 This is a partial sectional view of the side view of the protective frame of this utility model when it is folded. Figure 10 This is a partial sectional view of the side view of the protective frame of this utility model when it is in operation.

[0012] Reference numerals in the attached drawings: 1. Main frame; 2. Base plate; 3. Expanding plate; 3-1. Guide groove; 3-2. Main slot; 3-3. Secondary slot; 4. Guide block; 5. Support rod; 6. Stop bar; 7. Mounting plate; 8. Fixing plate; 9. Round shaft; 10. Screw. Detailed Implementation

[0013] The following will refer to the appendix in the embodiments of this utility model. Figure 1-10 The technical solutions in the embodiments of this utility model will be clearly and completely described. Example

[0014] A safe steel structure construction platform includes a main frame 1 at the bottom. The main frame 1 is a prior art material, made of Q355B low-alloy high-strength structural steel and includes 4 vertical support columns, 2 bottom horizontal connecting rods, and 2 top horizontal connecting rods. The support columns are 2.5m-3.0m high, and the bottom and top horizontal connecting rods are both 2.0m long. The overall load-bearing capacity of the main frame 1 is not less than 5kN / m². It also includes climbing poles and other structures. The more specific principles are not described in this utility model, but can be found in Chinese patents (application numbers: CN202321646130.3 and CN202420095227.8). The top of the main frame 1 is provided with a footboard, which includes a base plate 2 fixed to the top of the main frame 1. The top of the base plate 2 is equipped with an expansion plate 3 that can be adjusted in the left and right directions. Both the base plate 2 and the expansion plate 2 are made of Q235 carbon structural steel. A foldable protective frame is installed on the front and rear sides of the expansion plate 3.

[0015] To enable the sliding of the expansion plate 3, a guide block 4 is fixed on the top of the base plate 2 near its front and rear sides. The vertical cross section of the guide block 4 is dovetail-shaped. A guide groove 3-1 is opened on the front and rear sides of the bottom of the expansion plate 3. The guide groove 3-1 slides with the guide block 4. The two ends of the guide groove 3-1 are closed to prevent the expansion plate 3 from detaching from the base plate 2 during the sliding process. In order to facilitate the rotation of the protective frame while standing on the pedal, a gap is left between the left and right ends of the expansion plate 3 and the left and right ends of the base plate 2, so that the operator can stand on the pedal to rotate the protective frame.

[0016] The main frame 1 is in contact with the ground through the bottom support feet to form a stable support foundation. The base plate 2 is fixed to the top of the main frame 1 with high-strength bolts to provide a basic platform for operation. The expansion plate 3 can slide left and right along the base plate 2 to expand the total width of the platform and adapt to construction of different spans. The protective frame is installed on the front and rear sides of the expansion plate 3 to provide protection for workers and prevent them from falling from height. Example

[0017] Based on the first embodiment, the protective frame includes a handrail 5, and a number of equally spaced stop bars 6 are fixed on one side of the handrail 5. Both the handrail 5 and the stop bars 6 are made of seamless steel pipes. The free end of the stop bar 6 is rotatably installed on the side of the expansion plate 3. A number of equally spaced locking structures for locking the protective frame are provided on the base plate 2.

[0018] The protective frame is rotatably connected to the circular shaft 9 on the side of the expansion plate 3 via the stop bar 6, and can be folded and unfolded around the circular shaft 9. The stop bars 6 on the handrail 5 are evenly distributed to ensure the protective density of the protective frame and prevent workers from falling from the edge of the footboard. The locking structure on the base plate 2 corresponds one-to-one with the stop bar 6. When the protective frame is unfolded to the vertical state, the locking structure can lock each stop bar 6 to ensure the stability of the protective frame and prevent the protective frame from tipping over due to the failure of a single locking point. Example

[0019] Based on the second embodiment, in order to realize the storage of the protective frame, a main slot 3-2 is provided in the middle of the top of the expansion plate 3. The support rods 5 on the two protective frames are locked in the main slot 3-2. The main slot 3-2 is provided with several secondary slots 3-3 arranged at equal intervals in the direction of the expansion plate 3. The secondary slots 3-3 cooperate with the stop rods 6 on the protective frame. In order to facilitate the rotation of the protective frame, both ends of the support rods 5 extend out of both ends of the main slot 3-2. The free end of each stop rod 6 extends out of the secondary slot 3-3 and is connected to its corresponding locking structure.

[0020] When the platform is not in operation, the operator holds the end of the handle 5 that extends out of the main slot 3-2 and rotates the protective frame downward around the circular shaft 9 so that the handle 5 is inserted into the main slot 3-2 and the stop bar 6 is inserted into the corresponding secondary slot 3-3, thus realizing the storage of the protective frame. The two ends of the handle 5 extend out of the main slot 3-2, providing the operator with a point of force, making the folding and unfolding operation easier. Example

[0021] Based on the third embodiment, in order to lock the protective frame, the locking structure includes an L-shaped mounting plate 7. The free end of the horizontal plate of the mounting plate 7 is fixed on the base plate 2, and the free end of the vertical plate is arranged upward. Two symmetrically arranged fixing plates 8 are provided at the outer end of each sub-slot 3-3. A round shaft 9 is fixed between the two fixing plates 8. A round hole is opened on the end of the stop rod 6 that extends out of the sub-slot 3-3. The round hole is rotatably engaged with the round shaft 9. A horizontally placed screw hole is opened on the side plate of the mounting plate 7. A screw hole is also opened on the end of the stop rod 6 that extends out of the sub-slot 3-3. After the stop rod 6 is rotated to vertical, the screw hole on it is arranged opposite to the screw hole on the mounting plate 7. It also includes a screw 10 that is threadedly engaged with the screw hole.

[0022] When the protective frame needs to be unfolded, the operator holds the end of the handle 5 and rotates the protective frame upward around the circular shaft 9 until the stop bar 6 is in a vertical position. At this time, the screw hole on the stop bar 6 is aligned with the screw hole on the vertical plate of the mounting plate 7. The screw 10 is screwed into the aligned screw hole until the screw 10 passes through the stop bar 6 and the mounting plate 7, thereby locking the stop bar 6 and the mounting plate 7. Since each stop bar 6 is locked by an independent screw 10, even if one screw 10 is loose, the other screws 10 can still maintain the stability of the protective frame, greatly improving the safety of protection. When the protective frame needs to be folded, the screw 10 is unscrewed, and the stop bar 6 is rotated downward around the circular shaft 9 and inserted into the secondary slot 3-3.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safe steel structure construction platform, comprising a main frame (1) at the bottom, and a treadmill at the top of the main frame (1), characterized in that: The pedal includes a base plate (2) fixed to the top of the main frame (1), and an expansion plate (3) that can be adjusted in the left and right directions is installed on the top of the base plate (2). A foldable protective frame is installed on the front and rear sides of the expansion plate (3). The protective frame includes a support rod (5), and a number of equally spaced stop bars (6) are fixed on one side of the support rod (5). The free end of the stop bar (6) is rotatably installed on the side of the expansion plate (3). A number of equally spaced locking structures for locking the protective frame are provided on the base plate (2). A main slot (3-2) is provided in the middle of the top of the expansion plate (3). The support rods (5) on the two protective frames are locked in the main slot (3-2). The main slot (3-2) has several secondary slots (3-3) arranged at equal intervals in the direction of the expansion plate (3). The secondary slots (3-3) cooperate with the stop rods (6) on the protective frame. The free end of each stop rod (6) extends out of the secondary slot (3-3) and is connected to its corresponding locking structure.

2. The safety steel structure construction platform according to claim 1, characterized in that: The top of the substrate (2) is fixed with a guide block (4) near its front and rear sides respectively. The vertical cross section of the guide block (4) is dovetail-shaped. A guide groove (3-1) is opened on the front and rear sides of the bottom of the expansion plate (3). The guide groove (3-1) slides with the guide block (4). The two ends of the guide groove (3-1) are closed.

3. A safe steel structure construction platform according to claim 2, characterized in that: There is a gap between the left and right ends of the expansion plate (3) and the left and right ends of the substrate (2).

4. A safe steel structure construction platform according to claim 3, characterized in that: Both ends of the handrail (5) extend out of the two ends of the main slot (3-2).

5. A safe steel structure construction platform according to claim 4, characterized in that: The locking structure includes an L-shaped mounting plate (7), with the horizontal free end of the mounting plate (7) fixed on the base plate (2) and the vertical free end arranged upward. Two symmetrically arranged fixing plates (8) are provided at the outer end of each sub-slot (3-3), and a round shaft (9) is fixed between the two fixing plates (8). A round hole is provided on the end of the stop rod (6) that extends out of the sub-slot (3-3), and the round hole is rotatably engaged with the round shaft (9). A horizontally placed screw hole is provided on the side plate of the mounting plate (7), and a screw hole is also provided on the end of the stop rod (6) that extends out of the sub-slot (3-3). After the stop rod (6) is rotated to vertical, the screw hole on it is arranged opposite to the screw hole on the mounting plate (7). It also includes a screw rod (10) that is threadedly engaged with the screw hole.

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