Cage structure for hoisting tray material used at bottom
By designing an adjustable-spacing support mechanism and a linkage control mechanism, the problems of low efficiency and poor stability of traditional lifting cages when transporting pallet materials are solved, achieving efficient and safe pallet material lifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG DAXIN ENG
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional hoisting cages are inefficient when transporting palletized materials, requiring manual handling of each piece, which leads to material damage, poor transport stability, and safety hazards.
A cage structure was designed, which includes an adjustable spacing support rod mechanism and a linkage control mechanism. It can directly connect to the pallet material and ensure stability through a locking mechanism, thereby reducing manual intervention and material loss.
It improved hoisting efficiency, reduced the risk of material damage, enhanced the stability and safety of transportation, and simplified the operation process.
Smart Images

Figure CN224147494U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting technology, specifically a cage structure for hoisting equipment with a pallet material at the bottom. Background Technology
[0002] During the construction of high-rise buildings, after the main structure is demolded, masonry and decoration processes are required. At this time, construction elevators are often not yet installed on the corresponding floors, and some multi-story villas do not even have construction elevators. Therefore, the vertical transportation of materials mainly relies on tower cranes in conjunction with hoisting cages. Traditional hoisting cages use a bottom and four-sided enclosed structure, which is suitable for hoisting bulk materials, but has significant shortcomings when transporting palletized packaged materials (such as blocks, precast components, etc.).
[0003] Existing hoisting cages require manual handling of materials piece by piece, which is not only inefficient but also prone to damage, chipping, and breakage due to repeated loading and unloading, affecting construction quality and increasing material waste. Furthermore, traditional hoisting cages cannot accommodate pallets of different sizes, resulting in poor transport stability and posing safety hazards. Therefore, there is an urgent need for a hoisting cage solution that can quickly adapt to different pallet materials, reduce manual intervention, and has a reliable structure. Utility Model Content
[0004] The present invention aims to solve the above problems and thus provide a cage structure for lifting materials using a pallet at the bottom, which improves lifting efficiency.
[0005] The technical solution adopted by this utility model to solve the aforementioned problem is:
[0006] A cage structure for hoisting materials with pallets at the bottom includes a cage body, which includes an upper positioning frame and a lower positioning frame. A vertical rod is provided between the corners of the upper and lower positioning frames. Two sets of adjustable-spaced support rod mechanisms are arranged parallel to each other on the inner bottom of the cage body. A control linkage mechanism connected to the two sets of support rod mechanisms is provided on the outer side of the cage body. A locking mechanism is provided between the control linkage mechanism and the cage body.
[0007] Compared with the prior art, the present utility model adopting the above technical solution has the following outstanding features:
[0008] By incorporating an adjustable-spacing support rod mechanism and a linkage control mechanism, this solution addresses the inefficiency and material damage issues caused by manual material handling in existing hoisting cages. This structure allows for direct connection to a complete pallet, and the linkage mechanism quickly controls the two support rods to move in opposite or relative directions, directly supporting the bottom of the pallet. This avoids material loss from multiple handling operations and significantly improves loading and unloading efficiency. Compared to traditional enclosed hoisting cages, this solution maintains transportation safety while enabling the overall hoisting of palletized materials, reducing manual intervention and making operation simpler and more reliable. The locking mechanism ensures stability during hoisting, making the entire process safer and more controllable.
[0009] As a preferred embodiment, a further technical solution of this utility model is:
[0010] Furthermore, the support rod mechanism includes a support rod straddling the lower positioning frame. Crossbars are positioned on the lower sides of the cage body, opposite each other, above the ends of the support rods. The ends of the crossbars are fixed to the uprights, and the ends of the support rods are connected to a control linkage mechanism. This movable support rod design allows the cage to flexibly adapt to pallet materials of different sizes. The adjustable movement of the support rods between the crossbars and the lower positioning frame helps maintain stable support of the pallet during hoisting. Before hoisting, the support rods can move outwards to allow the cage to fit over the material, and then move inwards to support the bottom of the pallet, reducing manual handling, improving loading and unloading efficiency, and lowering the risk of material damage.
[0011] Furthermore, a first reinforcing round steel bar is provided between the bottom of the upper positioning frame and the crossbars on both sides. On the other two sides without crossbars, a second reinforcing round steel bar is provided between the upper positioning frame and the lower positioning frame to enhance the overall structural rigidity of the cage, distribute the force, reduce the risk of deformation caused by uneven load, and ensure the structural reliability during hoisting.
[0012] Furthermore, two limiting stops are provided between the middle of the crossbar and the lower positioning frame. The support rod moves between the column and the adjacent limiting stops, limiting the range of movement of the support rod and preventing excessive displacement that could cause the tray to tilt or dislodge.
[0013] Furthermore, reinforcing bars are installed between the top two sides of the crossbar and the upper positioning frame. The top of the reinforcing bars is equipped with lifting lugs to enhance the strength of the top load-bearing area and optimize the force distribution of the lifting points. The reinforcing bars connect the crossbar and the upper positioning frame, and the lifting lugs serve as the connection points for the lifting equipment, jointly ensuring the balance and safety during lifting.
[0014] Furthermore, the control linkage mechanism includes four diagonal tie rods. One end of each tie rod is hinged to the end of a support rod. A connecting rod is hinged to the ends of two tie rods on the same side. The ends of the connecting rods extend horizontally to the outside of the upright and are connected to an operating rod. The middle of the connecting rod is hinged to the opposite reinforcing rod. The tie rods hinge the support rods to the connecting rods. The operating rod drives the support rods on both sides to move in coordination through the connecting rods, simplifying the adjustment steps, improving the ease of operation, realizing the synchronous adjustment of the support rod position, and making the operation labor-saving and with strong linkage.
[0015] Furthermore, the locking mechanism includes locking holes that are oppositely opened between the connecting rod and the upright, with pins inserted into the locking holes to provide a detachable fixing method, preventing accidental displacement of the support rod during hoisting. The relative positions of the connecting rod and the upright are locked by inserting the pins into the locking holes, ensuring the stability of the support rod during the hoisting stage.
[0016] Furthermore, a positioning platform is provided between the upper part of the upright and the adjacent reinforcing bar. The positioning platforms are arranged in pairs facing each other. Adjustment holes are horizontally spaced on the positioning platforms. Limiting rods are connected between the positioning platforms in the same group. The end of the limiting rod has a limiting hole that cooperates with the limiting hole. When the limiting hole and the adjustment hole are aligned, a pin is inserted. The positioning platform is provided with adjustment holes to achieve position adjustment in conjunction with the limiting rod. The limiting rod is fixed by the pin, providing additional positioning protection for both sides of the material, which helps to stabilize the material during the hoisting operation. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0018] Figure 2 This is a side view of the structure of this utility model when it is not in operation;
[0019] Figure 3 This is a side view of the structure of the present invention during operation.
[0020] Figure 4 This is a schematic diagram of the structure of a set of positioning platforms according to an embodiment of the present invention;
[0021] The following are marked in the diagram: Upper positioning frame 1, Lower positioning frame 2, Upright rod 3, Support rod 4, Horizontal rod 5, First reinforcing round steel 6, Second reinforcing round steel 7, Limiting stop rod 8, Reinforcing rod 9, Diagonal tie rod 10, Connecting rod 11, Operating rod 12, Locking hole 13, Positioning platform 14, Adjusting hole 15, Limiting rod 16. Detailed Implementation
[0022] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0023] A cage structure for hoisting materials with a pallet at the bottom includes a cage body, which includes an upper positioning frame 1 and a lower positioning frame 2. A vertical rod 3 is provided between the corners of the upper positioning frame 1 and the lower positioning frame 2. Two sets of adjustable support rod mechanisms are arranged parallel to each other on the inner bottom of the cage body. A control linkage mechanism connected to the two sets of support rod mechanisms is provided on the outer side of the cage body. A locking mechanism is provided between the control linkage mechanism and the cage body.
[0024] Furthermore, the support mechanism includes a support rod 4 spanning the lower positioning frame 2. Horizontal bars 5 are positioned on opposite sides of the lower part of the cage body, located above the ends of the support rod 4. The support rod 4 is a cylindrical tube and slides between the horizontal bar 5 and the lower positioning frame 2. The distance between the horizontal bar 5 and the lower positioning frame 2 is 100mm. The end of the horizontal bar 5 is fixed to the upright 3, and the end of the support rod 4 is connected to the control linkage mechanism. The movable support rod 4 design allows the cage to flexibly adapt to pallet materials of different sizes. The adjustable movement of the support rod 4 between the horizontal bar 5 and the lower positioning frame 2 helps maintain stable support of the pallet during hoisting. Before hoisting, the support rod 4 can move outwards to allow the cage to fit over the material, and then move inwards to support the bottom of the pallet, reducing manual handling, improving loading and unloading efficiency, and reducing the risk of material damage.
[0025] Furthermore, a first reinforcing round steel 6 is provided between the bottom of the upper positioning frame 1 and the crossbars 5 on both sides. On the other two sides without crossbars 5, a second reinforcing round steel 7 is provided between the upper positioning frame 1 and the lower positioning frame 2 to enhance the overall structural rigidity of the cage, distribute the force, reduce the risk of deformation caused by uneven load, and ensure the structural reliability during the hoisting process.
[0026] Furthermore, two limiting rods 8 are provided between the middle of the crossbar 5 and the lower positioning frame 2. The distance between the limiting rod 8 and the adjacent upright 3 is 200mm. The support rod 4 moves between the upright 3 and the adjacent limiting rod 8, limiting the range of movement of the support rod 4 and avoiding excessive displacement that could cause the tray to tilt or dislodge.
[0027] Furthermore, reinforcing rods 9 are provided between the top two sides of the crossbar 5 and the upper positioning frame 1. Lifting lugs are provided at the top of the reinforcing rods 9 to enhance the strength of the top load-bearing area and optimize the force distribution at the lifting points. The reinforcing rods 9 connect the crossbar 5 and the upper positioning frame 1, and the lifting lugs serve as connection points for the lifting equipment, jointly ensuring balance and safety during lifting.
[0028] Furthermore, the control linkage mechanism includes four diagonal tie rods 10. One end of each tie rod 10 is hinged to the end of a support rod 4. A connecting rod 11 is hinged to the ends of two tie rods 10 on the same side. The ends of the connecting rods 11 extend horizontally to the outside of the upright 3 and are connected to an operating rod 12. The middle of the connecting rod 11 is hinged to the opposite reinforcing rod 9. The tie rods 10 hinge the support rod 4 to the connecting rods 11. The operating rod 12 drives the two support rods 4 on both sides to move collaboratively through the connecting rods 11, simplifying the adjustment steps, improving operational convenience, achieving synchronous adjustment of the support rod 4 position, and providing effortless operation with strong linkage.
[0029] Furthermore, the locking mechanism includes a locking hole 13 located between the connecting rod 11 and the upright rod 3, with a pin inserted into the locking hole 13 to provide a detachable fixing method and prevent accidental displacement of the support rod 4 during hoisting. By inserting the pin into the locking hole 13, the relative positions of the connecting rod 11 and the upright rod 3 are locked, ensuring the stability of the support rod 4 during the hoisting stage.
[0030] Furthermore, a positioning platform 14 is provided between the upper part of the upright 3 and the adjacent reinforcing rod 9. The positioning platform 14 is made of angle steel. The positioning platforms 14 are arranged in pairs facing each other. Adjustment holes 15 are horizontally spaced on the positioning platforms 14. Limiting rods 16 overlap between the positioning platforms 14 in the same group. The end of the limiting rod 16 has a limiting hole that cooperates with the limiting hole. When the limiting hole and the adjustment hole 15 are aligned, a pin is inserted. The positioning platform 14 is provided with adjustment holes 15, which, together with the limiting rod 16, allows for position adjustment. The limiting rod 16 is fixed by pins, providing additional positioning protection on both sides of the material, which helps to stabilize the material during the hoisting operation.
[0031] When it is necessary to hoist building materials with pallets, the operator first lifts and pulls the operating rod 12, which drives the four diagonal tie rods 10 to move in tandem through the connecting rod 11, so that the two sets of support rod mechanisms move towards each other to the maximum spacing position. After the entire cage is lowered and placed on the outside of the pallet, the operator presses down the operating rod 12 to move the support rod 4 inward to support the bottom of the pallet. The pin is inserted into the locking hole 13 between the connecting rod 11 and the upright 3 to fix the position. At the same time, the limiting rod 16 on the positioning platform 14 is adjusted according to the width of the material above the pallet and locked with the pin. Finally, the hoisting is carried out through the lifting lug at the top of the reinforcing rod 9.
[0032] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A sling structure for hoisting a bottom using a pallet material, comprising a sling body including opposite upper and lower positioning frames, and a vertical pole provided between opposite corners of the upper and lower positioning frames, characterized in that: The two groups of adjustable distance supporting rod mechanisms are arranged in parallel on the inner bottom of the cage body, and the control linkage mechanism connected with the two groups of supporting rod mechanisms is arranged on the outer side of the cage body.
2. The skip structure for hoisting the bottom using the pallet material according to claim 1, wherein: The supporting rod mechanism comprises a supporting rod arranged on the lower positioning frame, and the two sides of the lower part of the cage body are oppositely provided with a cross rod above the end of the supporting rod, and the end of the supporting rod is connected with the control linkage mechanism.
3. The skip structure for hoisting the bottom using the pallet material according to claim 2, characterized in that: The first reinforcing round steel is arranged between the bottom of the upper positioning frame and the cross rod on the two sides, and the second reinforcing round steel is arranged between the upper positioning frame and the lower positioning frame on the other two sides without the cross rod.
4. The skip structure for hoisting the bottom using the pallet material according to claim 2, wherein: Two limiting stop rods are arranged between the middle part of the cross rod and the lower positioning frame, and the supporting rod is movable between the vertical column and the adjacent limiting stop rod.
5. The skip structure for hoisting the bottom using the pallet material according to claim 2, wherein: The reinforcing rod is arranged between the top of the cross rod and the upper positioning frame on the two sides, and the top of the reinforcing rod is provided with an eye.
6. The skip construction for hoisting bottom using pallet material as claimed in claim 5 wherein: The control linkage mechanism comprises four inclined rods, one end of each of the inclined rods is hingedly connected with the end of the supporting rod, the end of the two inclined rods on the same side is commonly hingedly connected with a connecting rod, the end of the connecting rod extends horizontally to the outside of the vertical column and is commonly connected with an operating rod, and the middle part of the connecting rod is hingedly connected with the opposite reinforcing rod.
7. The skip construction for hoisting bottom using pallet material as claimed in claim 6 wherein: The locking mechanism comprises a locking hole oppositely arranged between the connecting rod and the vertical column, and a pin is inserted into the locking hole.
8. The skip structure for hoisting the bottom using the pallet material according to claim 5, wherein: The positioning table is arranged between the upper part of the vertical column and the adjacent reinforcing rod, and the positioning tables are oppositely arranged in pairs, the adjusting holes are horizontally and spacedly arranged on the positioning table, the limiting rods are overlapped between the positioning tables in the same group, the end of the limiting rod is provided with a limiting hole matched with the limiting hole, and the pin is inserted into the limiting hole and the adjusting hole.