Load reducing box
By employing a fixed plate, plug-in rod, and plug-in hole design in the load-bearing box, the misalignment problem during assembly is solved, improving stability and pressure resistance, while reducing weight and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-13
AI Technical Summary
Existing load-bearing boxes are prone to misalignment during assembly, resulting in poor stability and pressure resistance.
The design employs a fixing plate, a connecting rod, and a connecting hole between the upper and lower housings. By using fasteners and the cooperation of the connecting rod and the connecting hole, the fixing plate of the upper and lower housings is secured, thus solving the problems in the background technology.
The pressure resistance and overall stability of the load-bearing box have been improved, the overall weight has been reduced, and the service life has been extended.
Smart Images

Figure CN223991496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of load-reducing boxes, and in particular to load-reducing boxes. Background Technology
[0002] Cast-in-place hollow core slabs with combined grid load-bearing boxes are used in buildings with large spans, large spaces, and heavy loads. Compared with traditional methods, they can save on concrete quality and reduce overall costs. Hollow core slab molds are mainly suitable for schools, bridges, reading rooms, office buildings, shopping malls, factories, underground parking lots, and large-scale bay-side residential projects.
[0003] During the construction process using composite grid plastic core molds, the amount of steel bars, formwork, and concrete used is reduced, the structural self-weight is lowered, and the project cost is reduced. Compared with ordinary floor slabs, it has no secondary beams or uneven parts, and the top surface is completely flat, while meeting structural requirements. It has the characteristics of large space, high rigidity, and good seismic performance. However, existing load-bearing boxes are prone to misalignment during assembly, resulting in poor stability and compressive strength during subsequent use.
[0004] Therefore, it is necessary to provide a load-bearing box to solve the above-mentioned technical problems. Utility Model Content
[0005] This utility model provides a weight-reducing box, which solves the problems in the background art.
[0006] To solve the above-mentioned technical problems, the present invention provides a load-reducing box, including a load-reducing box body, which is composed of an upper box and a lower box. A first fixing plate is provided at the bottom of the upper box, and a second fixing plate is provided at the bottom of the lower box. Fixing holes are provided on the surfaces of the first and second fixing plates. The first and second fixing plates are fixed by fasteners passing through the fixing holes. A plug-in rod is provided on the surface of the first fixing plate, and a plug-in hole is provided on the surface of the second fixing plate. By using the first fixing plate, the second fixing plate, the plug-in rod, and the plug-in hole in cooperation, when the upper and lower boxes are combined, the plug-in rod will be inserted into the plug-in hole. Then, the first and second fixing plates are fixed by fasteners passing through the fixing holes, thereby completing the fixation of the load-reducing box body. At the same time, the cooperation of the plug-in rod and the plug-in hole facilitates the limiting of the first and second fixing plates, improving the pressure resistance and overall stability of the load-reducing box body.
[0007] Preferably, the upper housing has a first weight-reducing groove inside, and a first reinforcing rib is provided inside the first weight-reducing groove. The lower housing has a second weight-reducing groove inside, and a second reinforcing rib is provided inside the second weight-reducing groove. By providing the first weight-reducing groove and the second weight-reducing groove, the overall weight of the weight-reducing box body can be reduced. At the same time, the first reinforcing rib and the first reinforcing rib inside the first weight-reducing groove and the second weight-reducing groove can improve the overall pressure resistance of the weight-reducing box body and increase its service life.
[0008] Preferably, the top surfaces of the upper and lower housings are provided with weight-reducing slides, and one end of each weight-reducing slide is provided with an adapter hole. By providing weight-reducing slides, the overall weight of the weight-reducing housing body can be increased. By providing adapter holes, it is easy to connect external parts to the weight-reducing housing body.
[0009] Preferably, multiple plug rods are provided, and multiple plug holes are installed at equal intervals on the surface of the first fixed plate. The number of plug holes is equal to the number of plug rods. By providing multiple plug rods, the overall stability of the load-reducing box body can be improved.
[0010] Preferably, the outer diameter of the plug rod is equal to the inner diameter of the plug hole. By setting the outer diameter of the plug rod to be equal to the inner diameter of the plug hole, the stability of the first fixing plate and the second fixing plate when they are closed is improved.
[0011] Compared with related technologies, the weight-reducing box provided by this utility model has the following beneficial effects:
[0012] Compared with existing technologies, by using a first fixing plate, a second fixing plate, a connecting rod, and a connecting hole in combination, the connecting rod is inserted into the connecting hole when the upper and lower boxes are assembled. Then, the first and second fixing plates are fixed by fasteners passing through the fixing holes, thus completing the fixation of the weight-reducing box body. At the same time, the cooperation of the connecting rod and the connecting hole facilitates the limiting of the first and second fixing plates, improving the pressure resistance and overall stability of the weight-reducing box body. By setting the first and second weight-reducing grooves, the overall weight of the weight-reducing box body is reduced. In addition, the first and second reinforcing ribs are set inside the first and second weight-reducing grooves, which helps to improve the overall pressure resistance of the weight-reducing box body and extend its service life.
[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0014] Figure 1 A schematic diagram of the structure of the load-reducing box provided by this utility model;
[0015] Figure 2 A schematic diagram of the weight-reducing slide structure of the weight-reducing box provided by this utility model;
[0016] Figure 3 A schematic diagram of the plug-in rod structure of the load-reducing box provided by this utility model;
[0017] Figure 4 A schematic diagram of the insertion hole structure of the load-reducing box provided by this utility model.
[0018] Numbering on the map:
[0019] 1. Weight-reducing box body; 2. Upper box body; 3. Lower box body; 4. Fixing hole; 5. First fixing plate; 6. Weight-reducing slide; 7. First reinforcing rib; 8. Connecting rod; 9. First weight-reducing groove; 10. Second fixing plate; 11. Connecting hole; 12. Second weight-reducing groove; 13. Second reinforcing rib; 14. Adaptor hole. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example
[0021] Please refer to the following: Figure 1-4 The weight-reducing box includes a weight-reducing box body 1, which is composed of an upper box body 2 and a lower box body 3. A first fixing plate 5 is provided at the bottom of the upper box body 2, and a second fixing plate 10 is provided at the bottom of the lower box body 3. Fixing holes 4 are provided on the surfaces of the first fixing plate 5 and the second fixing plate 10. The first fixing plate 5 and the second fixing plate 10 are fixed by fasteners passing through the fixing holes 4. A connecting rod 8 is provided on the surface of the first fixing plate 5, and a connecting hole 11 is provided on the surface of the second fixing plate 10. The first fixing plate 5, the second fixing plate 10, the plug-in rod 8, and the plug-in hole 11 are designed to work together so that when the upper box 2 and the lower box 3 are combined, the plug-in rod 8 will be inserted into the plug-in hole 11. Then, the first fixing plate 5 and the second fixing plate 10 are fixed by fasteners passing through the fixing hole 4, thereby completing the fixation of the load-reducing box body 1. At the same time, the cooperation of the plug-in rod 8 and the plug-in hole 11 facilitates the limiting of the first fixing plate 5 and the second fixing plate 10, improving the pressure resistance and overall stability of the load-reducing box body 1.
[0022] The working principle of the load-reducing box provided by this utility model is as follows:
[0023] By using the first fixing plate 5, the second fixing plate 10, the plug-in rod 8, and the plug-in hole 11 in cooperation, when the upper box 2 and the lower box 3 are combined, the plug-in rod 8 will be inserted into the plug-in hole 11. Then, the first fixing plate 5 and the second fixing plate 10 will be fixed by fasteners passing through the fixing hole 4, thereby completing the fixation of the weight-reducing box body 1. At the same time, the cooperation of the plug-in rod 8 and the plug-in hole 11 facilitates the limiting of the first fixing plate 5 and the second fixing plate 10, improving the pressure resistance and overall stability of the weight-reducing box body 1. By setting the first weight-reducing groove 9 and the second weight-reducing groove 12, it is easy to reduce the overall weight of the weight-reducing box body 1. At the same time, the first reinforcing rib 7 and the second reinforcing rib 13 are set inside the first weight-reducing groove 9 and the second weight-reducing groove 12, which helps to improve the overall pressure resistance of the weight-reducing box body 1 and increase its service life.
[0024] Compared with related technologies, the weight-reducing box provided by this utility model has the following beneficial effects:
[0025] By using the first fixing plate 5, the second fixing plate 10, the plug-in rod 8, and the plug-in hole 11 in cooperation, when the upper box 2 and the lower box 3 are combined, the plug-in rod 8 will be inserted into the plug-in hole 11. Then, the first fixing plate 5 and the second fixing plate 10 will be fixed by fasteners passing through the fixing hole 4, thereby completing the fixation of the weight-reducing box body 1. At the same time, the cooperation of the plug-in rod 8 and the plug-in hole 11 facilitates the limiting of the first fixing plate 5 and the second fixing plate 10, improving the pressure resistance and overall stability of the weight-reducing box body 1. By setting the first weight-reducing groove 9 and the second weight-reducing groove 12, it is easy to reduce the overall weight of the weight-reducing box body 1. At the same time, the first reinforcing rib 7 and the second reinforcing rib 13 are set inside the first weight-reducing groove 9 and the second weight-reducing groove 12, which helps to improve the overall pressure resistance of the weight-reducing box body 1 and increase its service life. Example
[0026] Please refer to the following: Figure 1-4 Based on the load-reducing box provided in the first embodiment of this application, the second embodiment of this application proposes an additional load-reducing box. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0027] Based on Example 1, see [link / reference] Figure 1-4 The upper housing 2 has a first weight-reducing groove 9 inside, and a first reinforcing rib 7 is provided inside the first weight-reducing groove 9. The lower housing 3 has a second weight-reducing groove 12 inside, and a second reinforcing rib 13 is provided inside the second weight-reducing groove 12. By setting the first weight-reducing groove 9 and the second weight-reducing groove 12, it is easy to reduce the overall weight of the weight-reducing box body 1. At the same time, the first reinforcing rib 7 and the second reinforcing rib 13 inside the first weight-reducing groove 9 and the second weight-reducing groove 12 are provided to improve the overall pressure resistance of the weight-reducing box body 1 and increase its service life.
[0028] Based on Example 1, see [link / reference] Figure 1-4 The upper box 2 and the lower box 3 are provided with a weight-reducing slide 6 on their top surfaces. One end of the weight-reducing slide 6 is provided with an adapter hole 14. By providing the weight-reducing slide 6, it is easy to increase the overall weight of the weight-reducing box body 1. By providing the adapter hole 14, it is easy to connect external parts to the weight-reducing box body 1.
[0029] Based on Example 1, see [link / reference] Figure 1-4 The plug rods 8 are provided in multiple ways, and multiple plug holes 11 are installed at equal intervals on the surface of the first fixing plate 5. The number of plug holes 11 is equal to the number of plug rods 8. By providing multiple plug rods 8, the overall stability of the load-reducing box body 1 can be improved.
[0030] Based on Example 1, see [link / reference] Figure 1-4 The outer diameter of the plug rod 8 is equal to the inner diameter of the plug hole 11. By setting the outer diameter of the plug rod 8 to be equal to the inner diameter of the plug hole 11, the stability of the first fixing plate 5 and the second fixing plate 10 when they are closed is improved.
[0031] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.
[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A weight reduction box comprising a weight reduction box body (1), characterized in that, The relief box body (1) is composed of an upper box body (2) and a lower box body (3), the upper box body (2) is provided with a first fixed plate (5) at the bottom end, the lower box body (3) is provided with a second fixed plate (10) at the bottom end, the first fixed plate (5) and the second fixed plate (10) are provided with fixing holes (4) on the surface, the first fixed plate (5) and the second fixed plate (10) are fixed by fasteners penetrating the fixing holes (4), the first fixed plate (5) is provided with a plug-in rod (8) on the surface, and the second fixed plate (10) is provided with a plug-in hole (11) on the surface.
2. The relief box of claim 1, wherein, The upper box body (2) is internally provided with a first lightening groove (9), and the first lightening groove (9) is internally provided with a first reinforcing rib (7).
3. The relief box of claim 1, wherein, The lower box body (3) is internally provided with a second lightening groove (12), and the second lightening groove (12) is internally provided with a second reinforcing rib (13).
4. The relief box of claim 1, wherein, The upper box body (2) and the lower box body (3) are provided with a lightening slide (6) on the top surface, and one end of the lightening slide (6) is provided with an adaptive hole (14).
5. The relief box of claim 1, wherein, The plug-in rod (8) is provided with a plurality of plug-in holes (11) which are equidistantly arranged on the surface of the first fixed plate (5), and the number of the plug-in holes (11) is equal to that of the plug-in rods (8).
6. The relief box of claim 1, wherein, The outside diameter of the plug-in rod (8) is equal to the inside diameter of the plug-in hole (11).