Steel springboard lap joint structure

Abstract

The utility model discloses a steel springboard lap joint structure, which relates to the field of steel springboards and comprises a fixed box, two sliding blocks used for clamping the steel springboard are slidably connected to two sides in the fixed box, the top end of each sliding block extends out of the top surface of the fixed box, and one side of each sliding block is rotatably connected with a rotating block extending out of the side surface of the fixed box. The two rotating blocks on the same side of the fixed box are mutually connected through bolts, the device further comprises second racks, the second racks are arranged on the two sides of the fixed box, the rotating blocks can be clamped between two adjacent teeth of the second racks when naturally hanging down, and the rotating blocks can be separated from the second racks when rotating upwards. According to the steel springboard lap joint structure, the steel springboards which are in lap joint with the fixing box are connected into a whole, meanwhile, the positions of the steel springboards are positioned, the steel springboards are effectively prevented from sliding after being in lap joint with the fixing box, and the stability when the steel springboards are in lap joint through the steel springboard lap joint structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel scaffolding, specifically a steel scaffolding overlapping structure. Background Technology

[0002] Steel scaffolding planks are widely used construction tools in fields such as building, shipbuilding, and oil platforms. They are mainly used to erect scaffolding or temporary work platforms, providing workers with safe working passages and material transportation support.

[0003] Chinese patent CN217949723U discloses a steel scaffolding plank overlapping structure, including a first steel scaffolding plank, a second steel scaffolding plank, and a steel scaffolding plank overlapping plate. The two ends of the steel scaffolding plank overlapping plate in the length direction are respectively connected to two scaffolding crossbars. The short sides of the first steel scaffolding plank and the second steel scaffolding plank are in contact. The steel scaffolding plank overlapping plate is set below the short sides of the first steel scaffolding plank and the second steel scaffolding plank to support the first steel scaffolding plank and the second steel scaffolding plank.

[0004] Regarding the aforementioned technologies, existing steel plank overlapping structures only provide support to the ends of the steel planks. The steel planks overlapping on these structures are not properly secured, and during use, multiple planks are prone to slippage, affecting the stability of the overlapping position and increasing the risk of planks detaching from the structure. In summary, existing steel planks are not easily and stably attached to steel plank overlapping structures. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a steel scaffolding board overlapping structure to solve the technical problem that existing steel scaffolding boards are not easy to be stably overlapped on the steel scaffolding board overlapping structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel scaffolding board overlapping structure, including a fixed box, with two sliding blocks for clamping the steel scaffolding board slidably connected to both sides of the fixed box. The top of each sliding block extends out of the top surface of the fixed box, and a rotating block extending out of the side of the fixed box is rotatably connected to one side. The two rotating blocks on the same side of the fixed box are connected to each other by bolts. The structure also includes a second rack, which is disposed on both sides of the fixed box. When the rotating block hangs down naturally, it can engage with two adjacent teeth of the second rack, and when the rotating block rotates upward, it can disengage from the second rack.

[0007] By adopting the above technical solution, the steel scaffolding boards that are overlapped on the fixed box are connected as a whole, and the position of the steel scaffolding boards is also positioned, which effectively prevents the steel scaffolding boards from sliding after they are overlapped on the fixed box, thus improving the stability of the steel scaffolding board overlap structure when the steel scaffolding boards are overlapped.

[0008] The present invention is further configured such that telescopic boxes are slidably connected to both ends of the fixed box, and an overlapping block is fixedly connected to the end of the telescopic box away from the fixed box.

[0009] Preferably, the telescopic box is adjusted by sliding to accommodate frames of different widths.

[0010] The present invention is further configured such that a third toothed rack is provided on the top surface of the outer wall of the telescopic box, and a first toothed rack for cooperating with the third toothed rack is provided on the top surface of the inner walls at both ends of the fixed box. When the bottom surface of the telescopic box contacts the bottom surface of the inner wall of the fixed box, the first toothed rack and the third toothed rack disengage from contact.

[0011] Preferably, the telescopic box is positioned by utilizing the engagement between the first and third racks.

[0012] The present invention is further configured such that two parallel guide rods are fixedly connected inside the fixed box, and the sliding block is slidably connected to the guide rods.

[0013] Preferably, a guide rod is used to guide the sliding block.

[0014] The present invention is further provided in that the top surface of the fixing box is provided with a second opening above the guide rod for the sliding block to slide.

[0015] Preferably, the second opening allows the sliding block to pass through the fixing box.

[0016] The present invention is further configured such that a first opening is provided on the side of the fixing box along the length direction of the guide rod, and the height of the first opening in the vertical direction is greater than the height of the rotating block.

[0017] Preferably, the first opening allows the rotating block to extend out of the fixed box.

[0018] The present invention is further configured such that the tooth pitch of the second rack is the same as the width of the rotating block.

[0019] Preferably, this effectively prevents the rotating block from slipping after it gets stuck in the second rack.

[0020] In summary, the present invention has the following main advantages:

[0021] 1. This utility model provides a sliding block that can slide in opposite directions on a fixing box used for overlapping steel scaffolding planks. When the steel scaffolding plank is overlapped on the fixing box, the bolts move in opposite directions and clamp the protruding part of the bottom surface of the steel scaffolding plank. At the same time, the locking structure between the fixing box and the sliding block restricts the sliding of the sliding block. This connects the steel scaffolding planks overlapping on the fixing box into a whole and also positions the steel scaffolding planks. This effectively prevents the steel scaffolding planks from sliding after they are overlapped on the fixing box, thus improving the stability of the steel scaffolding plank overlapping structure when overlapping steel scaffolding planks.

[0022] 2. This utility model provides telescopic boxes that can extend from both ends of the fixed box. When the fixed box is installed, the telescopic boxes can be slidably pulled out to adapt to frames of different widths. The toothed belt structure between the telescopic box and the inner wall of the fixed box automatically completes sliding locking when the top surface of the fixed box is subjected to downward pressure, preventing the telescopic box from sliding relative to the fixed box after it is connected to the steel scaffold, thus further improving the stability of the fixed box during use. Attached Figure Description

[0023] Figure 1 This is a perspective view of the overlapping steel scaffolding of this utility model;

[0024] Figure 2 This is a perspective view of the overlapping steel scaffolding from another angle.

[0025] Figure 3 For the present utility model Figure 2 Enlarged view of A in the middle;

[0026] Figure 4 This is a perspective view of the internal structure of the fixing box of this utility model;

[0027] Figure 5 For the present utility model Figure 4 Enlarged view of B in the middle;

[0028] Figure 6 This is a perspective view of the fixing box of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Fixed box; 101. First rack; 102. Second rack; 103. First opening; 104. Second opening; 2. Telescopic box; 201. Third rack; 202. Overlapping block; 3. Guide rod; 4. Sliding block; 5. Rotating block; 6. Bolt; 7. Steel scaffolding; 8. Frame. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] First embodiment:

[0034] Please refer to the following: A steel scaffolding plank overlapping structure. Figure 1-6 The device includes a fixed box 1. Two sliding blocks 4 for clamping steel planks are slidably connected to both sides of the fixed box 1. The top of the sliding block 4 extends out of the top surface of the fixed box 1, and a rotating block 5 extending out of the side of the fixed box 1 is rotatably connected to one side. The two rotating blocks 5 on the same side of the fixed box 1 are connected to each other by bolts 6. Specifically, in this embodiment, the bolts 6 are extended long rod bolts.

[0035] It also includes a second rack 102, which is disposed on both sides of the fixed box 1, specifically on the bottom surface of the first opening 103. When the rotating block 5 hangs down naturally, it can engage with the adjacent teeth of the second rack 102. When the rotating block 5 rotates upward, it can disengage from the second rack 102. When adjusting the distance between the sliding blocks 4 by adjusting the nut on the rotating bolt 6, the bolt 6 needs to be lifted first to separate the rotating block 5 from the teeth on the second rack 102.

[0036] Furthermore, two parallel guide rods 3 are fixedly connected inside the fixed box 1, and the sliding block 4 is slidably connected to the guide rods 3, using the guide rods 3 to guide the sliding of the sliding block 4.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 4-6 The top surface of the fixed box 1 is provided with a second opening 104 above the guide rod 3 for the sliding block 4 to slide. The second opening 104 allows the sliding block 4 to pass through the fixed box 1.

[0038] Specifically, most existing steel scaffolding planks 7 contain a rectangular frame, with a sheet metal covering the top surface of the rectangular frame. Therefore, the bottom surface of the steel scaffolding plank 7 has a downward flange. When the sliding block 4 moves in opposite directions to clamp the steel scaffolding plank 7, it specifically clamps the flanges at the bottom of two steel scaffolding planks 7 near the two sides among multiple parallel steel scaffolding planks 7, causing the steel scaffolding planks 7 on both sides to move closer to the center. The friction between the steel scaffolding planks 7 causes them to combine into a whole. In this embodiment, when there are three steel scaffolding planks 7, the two sliding blocks 4 respectively push the first and third steel scaffolding planks 7 to slide towards the middle steel scaffolding plank 7.

[0039] Furthermore, a first opening 103 is provided on the side of the fixed box 1 along the length of the guide rod 3. The height of the first opening 103 in the vertical direction is greater than the height of the rotating block 5, providing sufficient space for the rotation of the rotating block 5. The first opening 103 allows the rotating block 5 to extend out of the fixed box 1.

[0040] Second embodiment:

[0041] Please refer to the following: A steel scaffolding plank overlapping structure. Figure 1-6 Based on the first embodiment, the difference from the first embodiment is that both ends of the fixed box 1 are slidably connected to the telescopic box 2, and the end of the telescopic box 2 away from the fixed box 1 is fixedly connected to the overlapping block 202. The telescopic box 2 can be adjusted by sliding to adapt to the frame 8 of different widths.

[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 , Figure 4-6 The top surface of the outer wall of the telescopic box 2 is provided with a third rack 201, and the top surfaces of the inner walls at both ends of the fixed box 1 are provided with a first rack 101 for cooperating with the third rack 201. Specifically, the first rack 101 and the third rack 201 have the same tooth height. When the bottom surface of the telescopic box 2 contacts the bottom surface of the inner wall of the fixed box 1, the first rack 101 and the third rack 201 disengage. The positioning of the telescopic box 2 is achieved by the cooperation between the first rack 101 and the third rack 201.

[0043] Furthermore, the pitch of the second rack 102 is the same as the width of the rotating block 5, which effectively prevents the rotating block 5 from slipping after it gets stuck in the second rack 102.

[0044] In practical use, this utility model is as follows:

[0045] Lift the fixed box 1 so that the telescopic box 2 adheres to the bottom surface of the inner wall of the fixed box 1 under its own weight. At this time, since the first rack 101 and the third rack 201 are separated from each other, the telescopic box 2 can be freely slid and adjusted to adapt to the frame 8 of different widths. Then, place the whole consisting of the fixed box 1 and the telescopic box 2 on the frame 8. The overlapping block 202 contacts the frame, and the fixed box 1 falls under its own weight, so that the first rack 101 and the third rack 201 resume their engagement. This completes the placement of the fixed box 1 in a convenient way.

[0046] Then, place the steel planks 7 to be overlapped one by one on the top surface of the fixing box 1, lift the bolt 6 to disengage the rotating block 5 from the second rack 102, rotate the nut on the bolt 6 to bring the two rotating blocks 5 closer to each other. Since the rotating block 5 is rotatably connected to the sliding block 4, the sliding blocks 4 on both sides of the fixing box 1 can be brought closer to each other and gradually clamp the flange on the bottom surface of the steel plank 7. Then, loosen the bolt 6 to let the rotating block 5 hang down naturally and engage between the teeth of the second rack 102, thus conveniently completing the stable overlap of the steel planks.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A steel ramp lap joint structure characterized by, include: The fixed box (1) has two sliding blocks (4) for clamping steel planks slidably connected on both sides. The top of the sliding block (4) extends out of the top surface of the fixed box (1), and a rotating block (5) extending out of the side of the fixed box (1) is rotatably connected on one side. The two rotating blocks (5) on the same side of the fixed box (1) are connected to each other by bolts (6). The second rack (102) is disposed on both sides of the fixed box (1). When the rotating block (5) hangs down naturally, it can be engaged between two adjacent teeth of the second rack (102). When the rotating block (5) rotates upward, it can disengage from the second rack (102).

2. The steel dock board lap joint structure according to claim 1, characterized by: Both ends of the fixed box (1) are slidably connected to telescopic boxes (2), and the end of the telescopic box (2) away from the fixed box (1) is fixedly connected to an overlapping block (202).

3. The steel dock board lap joint structure according to claim 2, characterized by: The top surface of the outer wall of the telescopic box (2) is provided with a third rack (201), and the top surfaces of the inner walls at both ends of the fixed box (1) are provided with a first rack (101) for cooperating with the third rack (201). When the bottom surface of the telescopic box (2) contacts the bottom surface of the inner wall of the fixed box (1), the first rack (101) and the third rack (201) disengage.

4. The steel dock board lap joint structure according to claim 1, characterized by: The fixed box (1) has two parallel guide rods (3) fixedly connected inside, and the sliding block (4) is slidably connected to the guide rods (3).

5. The steel scaffolding overlap structure according to claim 4, characterized in that: The top surface of the fixed box (1) is provided with a second opening (104) above the guide rod (3) for the sliding block (4) to slide.

6. The steel dock board lap joint structure according to claim 5, characterized by: The side of the fixed box (1) is provided with a first opening (103) along the length of the guide rod (3), and the height of the first opening (103) in the vertical direction is greater than the height of the rotating block (5).

7. The steel dock board lap joint structure according to claim 1, characterized by: The pitch of the second rack (102) is the same as the width of the rotating block (5).

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