Sand box device for unloading steel structure

Abstract

The utility model discloses a sand box device for unloading a steel structure, which comprises a pouring jacket and an inner box, the pouring jacket is matched with the inner box, the inner box is sleeved in the pouring jacket, an inner box top plate is arranged at the top of the inner box, a pouring jacket bottom plate is arranged at the bottom of the pouring jacket, a plurality of positioning guide pieces are arranged on one side, close to the inner box, of the inner box top plate, and the positioning guide pieces are matched with the inner box. A plurality of positioning guide rails are arranged on the side wall of the sleeve box and are in sliding fit with the positioning guide pieces. According to the sand box device of the steel structure, the limiting guide piece arranged on the inner box is matched with the limiting guide rail on the sleeve box, sand in the sand box is uniformly discharged from the sand outlet pipe in the process of unloading the steel structure, a positioning effect is achieved between the limiting guide piece and the limiting guide rail, and meanwhile friction can be reduced; the situation that the inner box is prone to being clamped in the moving process is avoided, the unloading stability is improved, the structural strength of the pouring jacket can be remarkably enhanced through the reinforcing rib plates, and the bearing capacity and the deformation resistance of the pouring jacket are improved.

Description

Technical Field

[0001] This utility model relates to the field of steel structure support technology, and in particular to a sand box device for unloading steel structures. Background Technology

[0002] During the installation of steel structures, sand box unloading devices can serve as temporary supports, providing a stable foundation for the steel structure and preventing deformation or collapse under its own weight, wind loads, etc. By controlling the amount of sand discharged, the steel structure can be unloaded smoothly, avoiding excessive stress concentration or deformation caused by sudden unloading.

[0003] Currently, most sand boxes rely solely on the gap fit between the inner and outer boxes, lacking precise positioning and constraint mechanisms. When the inner box carries the steel structure and moves, it is easily affected by uneven distribution of the steel structure, vibration, or impact, causing the inner box to tilt or collide with the inner wall of the outer box, resulting in jamming and seriously affecting unloading efficiency and equipment stability. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a steel structure unloading sand box device, which has a positioning effect, avoids the inner box from getting stuck during movement, and improves the stability of unloading.

[0005] This utility model provides a sand box device for unloading steel structures, including a sleeve box and an inner box, the sleeve box and the inner box being adapted to each other, the inner box being sleeved inside the sleeve box, the top of the inner box being provided with an inner box top plate, the bottom of the sleeve box being provided with a sleeve box bottom plate, the inner box top plate being provided with multiple positioning guides on the side near the inner box, and the side wall of the sleeve box being provided with multiple positioning guide rails, the positioning guide rails slidingly engaging with the positioning guides.

[0006] Preferably, the positioning guide includes two vertical plates, which are disposed at the bottom of the inner box top plate. Each of the two vertical plates is provided with a guide wheel on its opposite side, and the outer peripheral wall of the guide wheel is provided with an annular groove.

[0007] Preferably, the positioning guide rail includes multiple positioning plates, which are equidistantly arranged around the side wall of the housing. Two symmetrically distributed first guide plates are provided on the side of the positioning plates near the housing. The side wall of the housing is provided with second guide plates corresponding to the positions of the first guide plates. Both the first and second guide plates are adapted to the annular groove.

[0008] Preferably, the bottom of the side wall of the housing is provided with a plurality of reinforcing ribs that are equidistantly distributed around it, and the reinforcing ribs are located at the top of the bottom plate of the housing.

[0009] Preferably, the side wall of the casing is provided with multiple sand outlet pipes, which are arranged symmetrically on the left and right.

[0010] Preferably, the opposite side of the first guide plate and the second guide plate has an arc-shaped structure, and the cross-section of the positioning plate is T-shaped.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: by setting a limiting guide on the inner box and cooperating with the limiting guide rail on the outer box, the sand inside the sand box is evenly discharged from the sand outlet pipe during the unloading of the steel structure. The limiting guide and the limiting guide rail not only play a positioning role, but also reduce friction and avoid the inner box from getting stuck during the movement, thereby improving the stability of unloading. Attached Figure Description

[0012] Figure 1 This is a front view of the sand box device proposed in this utility model.

[0013] Figure 2 This is a schematic diagram showing the outer casing and inner casing separated as proposed in this utility model.

[0014] Figure 3 This is an enlarged view of the positioning guide proposed in this utility model.

[0015] Reference numerals in the attached drawings: 1. Bottom plate of the casing; 2. Casing; 3. Reinforcing rib; 4. Positioning guide rail; 41. Positioning plate; 42. First guide plate; 43. Second guide plate; 5. Inner box; 6. Top plate of the inner box; 7. Positioning guide; 71. Vertical plate; 72. Guide wheel; 721. Annular groove; 8. Sand outlet pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1-3 As shown, the present invention proposes a steel structure unloading sand box device, including a sleeve box 2 and an inner box 5. The sleeve box 2 and the inner box 5 are adapted to each other. The inner box 5 is sleeved inside the sleeve box 2. The top of the inner box 5 is provided with an inner box top plate 6, and the bottom of the sleeve box 2 is provided with a sleeve box bottom plate 1. Multiple positioning guides 7 are provided on the side of the inner box top plate 6 near the inner box 5. Multiple positioning guide rails 4 are provided on the side wall of the sleeve box 2. The positioning guide rails 4 and the positioning guides 7 are slidably engaged.

[0020] Please see Figure 3 In this embodiment, the positioning guide 7 includes two vertical plates 71, which are located at the bottom of the inner box top plate 6. Each of the two vertical plates 71 has a guide wheel 72 on its opposite side, and the outer peripheral wall of the guide wheel 72 has an annular groove 721.

[0021] By installing multiple positioning guides 7 on the side of the inner box top plate 6 near the inner box, and multiple positioning guide rails 4 on the side wall of the outer box 2, the inner box 5 can achieve a stable and precise sliding fit inside the outer box 2. This design can effectively prevent the inner box from tilting or shaking during use, ensuring the smooth unloading process of the steel structure.

[0022] Please see Figure 2 In this embodiment, the positioning guide rail 4 includes multiple positioning plates 41, which are equidistantly arranged around the side wall of the housing 2. Two symmetrically distributed first guide plates 42 are provided on the side of the positioning plate 41 near the housing 2. The side wall of the housing 2 is provided with a second guide plate 43 corresponding to the position of the first guide plate 42. Both the first guide plate 42 and the second guide plate 43 are adapted to the annular groove 721.

[0023] The guide wheel 72 is located between the first guide plate 42 and the second guide plate 43, and the guide wheel 72 can slide on the first guide plate 42 and the second guide plate 43.

[0024] Please see Figure 1 In this embodiment, the bottom of the side wall of the housing 2 is provided with a plurality of reinforcing ribs 3 distributed around it at equal intervals, and the reinforcing ribs 3 are located on the top of the bottom plate 1 of the housing.

[0025] The design of the reinforced rib plate 3 can significantly enhance the structural strength of the casing 2, improve its load-bearing capacity and resistance to deformation. This helps ensure that the sand box device can withstand large loads during use, and can also effectively prevent the casing 2 from deforming due to long-term use or heavy pressure.

[0026] In this embodiment, the side wall of the casing 2 is provided with multiple sand outlet pipes 8, which are arranged symmetrically on the left and right sides.

[0027] It is worth mentioning that the sand outlet on the sand outlet pipe 8 can be sealed and plugged with sealing bolts. This method is easy to install and disassemble, and can be easily opened when sand needs to be discharged, while remaining closed when sand is not needed to ensure that sand does not leak.

[0028] It should be noted that multiple sand discharge pipes 8 are symmetrically arranged on the side wall of the casing 2. This design facilitates the discharge of sand from the casing 2 when needed, thereby unloading the steel structure. The symmetrical arrangement of the sand discharge pipes 8 ensures the uniformity of sand discharge and avoids uneven stress on the steel structure caused by uneven sand discharge, thus ensuring a smooth and safe unloading process.

[0029] Please see Figure 2 In this embodiment, the opposite side of the first guide plate 42 and the second guide plate 43 is an arc-shaped structure, and the cross-section of the positioning plate 41 is T-shaped.

[0030] Working principle: When the steel structure needs to be unloaded, the sand in the casing 2 is evenly discharged through the sand discharge pipe 8. As the sand is discharged, the inner casing 5 gradually moves downward under its own weight and the pressure of the steel structure. The positioning guide 7 on the top plate 6 of the inner casing slides and engages with the positioning guide rail 4 on the side wall of the casing 2 to ensure that the inner casing 5 maintains a stable and accurate position during the movement, avoiding the inner casing 5 from tilting or colliding with the inner wall of the casing 2, thereby effectively preventing the occurrence of jamming.

[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A sand box device for unloading steel structure, comprising a sleeve box (2) and an inner box (5), the sleeve box (2) and the inner box (5) are matched, the inner box (5) is sleeved in the inside of the sleeve box (2), the top of the inner box (5) is provided with an inner box top plate (6), the bottom of the sleeve box (2) is provided with a sleeve box bottom plate (1), characterized in that, The top plate (6) of the inner box is provided with multiple positioning guides (7) on the side near the inner box (5), and the side wall of the sleeve (2) is provided with multiple positioning guide rails (4), and the positioning guide rails (4) and the positioning guides (7) slide together.

2. The sand box device for unloading steel structures according to claim 1, characterized in that: The positioning guide (7) includes two vertical plates (71), which are located at the bottom of the inner box top plate (6). Each of the two vertical plates (71) has a guide wheel (72) on its opposite side, and the outer peripheral wall of the guide wheel (72) has an annular groove (721).

3. The sand box device for unloading steel structures according to claim 2, characterized in that: The positioning guide rail (4) includes multiple positioning plates (41), which are equidistantly arranged around the side wall of the housing (2). Two symmetrically distributed first guide plates (42) are provided on the side of the positioning plate (41) near the housing (2). The side wall of the housing (2) is provided with a second guide plate (43) corresponding to the position of the first guide plate (42). Both the first guide plate (42) and the second guide plate (43) are adapted to the annular groove (721).

4. The sand box device for unloading steel structures according to claim 1, characterized in that: The bottom of the side wall of the housing (2) is provided with multiple reinforcing ribs (3) that are equidistantly distributed around it, and the reinforcing ribs (3) are located on the top of the bottom plate (1) of the housing.

5. A sand box device for unloading steel structures according to claim 1, characterized in that: The side wall of the casing (2) is provided with multiple sand outlet pipes (8), which are arranged symmetrically on the left and right.

6. A sand box device for unloading steel structures according to claim 3, characterized in that: The first guide plate (42) and the second guide plate (43) have an arc-shaped structure on opposite sides, and the positioning plate (41) has a T-shaped cross section.

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