Sand box with safety guard

Abstract

The utility model discloses a sand box with safety device, including sand box main part and interval setting multiple first anti -falling board and multiple second anti -falling board at sand box main part top, sand box main part top is provided with multiple limiting recess, first anti -falling board and second anti -falling board bottom all are provided with the limiting boss of with limiting recess adaptation, first anti -falling board both sides are provided with connecting hole, second anti -falling board both sides are provided with with connecting hole adaptation connecting block. The utility model discloses through with the connecting block of second anti -falling board is inserted into the connecting hole on first anti -falling board, and the limiting boss of first anti -falling board and second anti -falling board bottom is inserted into the limiting recess on sand box main part top, forms the surrounding type anti -falling structure, and the mutual check between adjacent anti -falling board, and the anti -falling structure is stable, and is not easy to collapse.

Description

Technical Field

[0001] This utility model relates to the field of sand casting technology, specifically to a sand box with a safety protection device. Background Technology

[0002] In casting production, large sand boxes are widely used in sand mold making, often reaching several meters in height. Workers are required to perform mold closing, inspection, or cleaning operations at the top of the sand box. However, traditional sand box designs primarily focus on casting process requirements and lack effective fall protection measures, resulting in serious safety hazards for workers operating at heights. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a sandbox equipped with a safety protection device, the specific solution of which is as follows: A sandbox with safety protection devices includes a sandbox body and a plurality of first fall arresters and a plurality of second fall arresters spaced apart on the top of the sandbox body; The top of the sand box body is provided with multiple limiting grooves, and the bottom of the first and second anti-fall plates are provided with limiting protrusions that are adapted to the limiting grooves. The first fall arrestor plate has connecting holes on both sides, and the second fall arrestor plate has connecting blocks on both sides that are adapted to the connecting holes.

[0004] To accommodate sandboxes of different shapes, the sides of both the first and second fall arresters are curved surfaces; the sides of the connecting holes and connecting blocks are also curved surfaces.

[0005] To increase the strength of the sand box and facilitate workers' access, the main body of the sand box further includes reinforcing ribs, and multiple crossbars are arranged between the reinforcing ribs on one side of the main body of the sand box.

[0006] The advantages and beneficial effects of this utility model are as follows: 1. The connecting block on the second fall arrestor plate is inserted into the connecting hole on the first fall arrestor plate. The limiting bosses at the bottom of the first and second fall arrestor plates are inserted into the limiting groove at the top of the sand box body to form an enclosed fall arrestor structure. The adjacent fall arrestor plates restrain each other, making the fall arrestor structure stable and not easy to collapse.

[0007] 2. The sides of the first and second fall arresting plates, as well as the sides of their connecting holes and connecting blocks, are all designed with arc-shaped curved surfaces, so that they can form a compatible enclosed structure on the top surface of sandboxes of different shapes, which can enhance their versatility.

[0008] 3. The plate-shaped anti-fall surface can prevent tools from falling and affecting work efficiency and the safety of personnel on the ground.

[0009] 4. The horizontal bars between the reinforcing ribs allow workers to work directly up and down along them, eliminating the need for carrying and climbing ladders and improving construction efficiency. At the same time, workers can fasten their safety belts into the horizontal bars to prevent them from falling while climbing. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the sand box of this utility model; Figure 3 This is a schematic diagram of the first fall arrestor structure of this utility model; Figure 4 This is a schematic diagram of the second fall arrestor structure of this utility model; Figure 5 This is a schematic diagram of the insertion of the first and second fall arrestor plates of this utility model.

[0011] In the diagram: 1. Sand box body; 11. Limiting groove; 2. First anti-fall plate; 21. Connecting hole; 3. Second anti-fall plate; 31. Connecting block; 4. Limiting protrusion; 5. Reinforcing rib; 6. Crossbar. Detailed Implementation

[0012] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0013] Example 1 according to Figures 1-5 As shown, a sandbox with safety protection devices includes a sandbox body 1, a plurality of first fall arrest plates 2 and a plurality of second fall arrest plates 3.

[0014] The top of the sand box body 1 is provided with multiple limiting grooves 11, and the sand box body 1 is provided with reinforcing ribs 5 around its perimeter. Multiple crossbars 6 are provided between the reinforcing ribs 5 on one side of the sand box body 1.

[0015] The first fall arrestor plate 2 has connecting holes 21 on both sides, and the second fall arrestor plate 3 has connecting blocks 31 on both sides that are adapted to the connecting holes 21; the bottom of the first fall arrestor plate 2 and the second fall arrestor plate 3 are both provided with limiting bosses 4 that are adapted to the limiting grooves 11, and multiple first fall arrestor plates 2 and multiple second fall arrestor plates 3 are spaced apart on the top of the sand box body 1.

[0016] When working on top of the sand box, workers must wear a safety harness with two safety buckles. One buckle is fastened to a suitable crossbar 6. After climbing to a certain height, the other buckle is fastened to a higher crossbar 6. The first buckle is then removed, and after climbing to the top of the sand box, the first fall arrestor 2 and the second fall arrestor 3 are installed. During installation, the limiting protrusions 4 at the bottom of multiple first fall arrestors 2 are inserted into the limiting grooves 11 at intervals. Then, the limiting protrusions 4 at the bottom of multiple second fall arrestors 3 are inserted into the remaining limiting grooves 11. Simultaneously, the connecting blocks 31 on both sides of the second fall arrestors 3 are inserted into the connecting holes 21 of adjacent first fall arrestors 2, forming a surrounding fall arrest structure. When temporary access to or from the sand box is required, one of the second fall arrestors 3 on the upper part of the crossbar 6 can be removed, and then work can proceed up and down along the crossbar 6.

[0017] The first fall arrestor 2 and the second fall arrestor 3 are made of lightweight rigid materials, such as PVC plastic and carbon fiber composite materials.

[0018] The sides of the first fall arrestor plate 2 and the second fall arrestor plate 3, as well as the sides of their connecting holes 21 and connecting blocks 31, are all designed as curved surfaces. This ensures that regardless of the angle formed by adjacent first and second fall arrestor plates, the connecting holes 21 and connecting blocks 31 can be securely inserted together, and the sides of adjacent first and second fall arrestor plates 2 and 3 can fit tightly together. This design is suitable for sandboxes of various shapes and prevents tools from falling, thus maintaining work efficiency and the safety of personnel on the ground.

[0019] Example 2 Based on the above embodiments, multiple anti-fall plates can also be injection molded to fit the shape of the sand box body, and adjacent anti-fall plates can be connected by T-slots (or dovetail slots).

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sandbox equipped with a safety protection device, characterized in that: It includes a sand box body (1), and a plurality of first anti-fall plates (2) and a plurality of second anti-fall plates (3) spaced apart on the top of the sand box body (1); The top of the sand box body (1) is provided with multiple limiting grooves (11), and the bottom of the first anti-fall plate (2) and the second anti-fall plate (3) are provided with limiting bosses (4) that are compatible with the limiting grooves (11). The first fall arrestor (2) has connecting holes (21) on both sides, and the second fall arrestor (3) has connecting blocks (31) on both sides that are compatible with the connecting holes (21).

2. The sand box with safety protection device according to claim 1, characterized in that: The sides of the first fall arrestor plate (2) and the second fall arrestor plate (3) are both arc-shaped surfaces; the sides of the connecting hole (21) and the connecting block (31) are both arc-shaped surfaces.

3. The sand box with a safety protection device according to claim 1, characterized in that: The sand box body (1) includes reinforcing ribs (5), and multiple crossbars (6) are provided between the reinforcing ribs (5) on one side of the sand box body (1).

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