A standard segment packing and shipping device for a tower crane

Abstract

The utility model provides a kind of standard section packing and shipping device of tower crane, comprising: multiple first support structure, multiple second support structure, multiple third support structure, multiple locking structure, multiple buffer structure, multiple buffer structure is respectively clamped between first support structure and standard section piece, between second support structure and flanging, between locking structure and standard section piece, for separating the contact of first support structure, second support structure, locking structure and standard section piece flanging;Multiple fourth support structure, multiple fourth support structure is set between the bottom of shipping unit and transport equipment, to reduce standard section piece transport goods damage rate, reduce paint scratch and structural damage, guarantee standard section piece structural strength and security, improve transport efficiency and allocation rate, and guarantee overall transport stability, avoid standard section piece misplacement and stacking inclination and shipping unit offset, reduce additional cost.

Description

Technical Field

[0001] This utility model relates to the field of crane equipment packaging technology, and more specifically, to a standard section packaging and shipping device for tower cranes. Background Technology

[0002] In the transportation system of tower cranes, standard sections are a core component. A standard section of a single tower crane accounts for nearly half of the overall structural space. Whether transported by flatbed truck or exported via container, the packaging and shipping method of standard sections directly impacts transportation costs. To optimize costs, the industry generally adopts a transportation model of packaging multiple standard sections into a single unit. Furthermore, provided it complies with road transport regulations, the more concentrated the packaging units, the lower the overall shipping cost. However, wear and tear on standard sections during transportation has long plagued the industry, with standard section structural components exhibiting the highest probability of wear and tear among all types of components. Minor wear can be repaired with routine paint touch-ups; however, severe wear not only directly affects the overall strength and safety of the standard section but also requires additional costs and time for structural component replacement, re-inspection, and subsequent painting, resulting in double losses.

[0003] Currently, the industry still mainly uses the conventional method of combining wooden blocks and steel straps to pack standard sections. However, due to the differences in structure and size of standard sections of tower cranes of different brands and models, the conventional packing method is difficult to form a stable and compatible protective effect, which means that the problem of wear and tear on standard sections can never be completely avoided.

[0004] Based on the above situation, there is an urgent need for a standard section packaging and shipping device for tower cranes to solve the problems in the existing technology. Utility Model Content

[0005] The main objective of this invention is to provide a standard section packing and shipping device for tower cranes, which at least solves the problem that conventional packing with wooden blocks and steel straps in the prior art is difficult to adapt to the differences between different standard sections and leads to easy wear and tear of the standard section structural components during transportation.

[0006] To achieve the above objectives, this utility model provides a standard section packing and shipping device for a tower crane. Each shipping unit includes multiple packing units stacked vertically. Each packing unit includes four standard sections stacked on top of each other. The device includes: multiple first support structures disposed between the flanges of two adjacent standard sections in each packing unit, supporting the flanges at the larger ends of the two adjacent standard sections; and multiple second support structures, each cooperating with a connecting hole at the smaller end of each standard section to secure the smaller end of each standard section within the packing unit to the larger end of the adjacent standard sections. The packaging unit is supported on the flange at one end; multiple third support structures are disposed between adjacent packaging units to support the packaging units; multiple locking structures are used to fix two adjacent standard sections; multiple buffer structures are respectively sandwiched between the first support structure and the standard section, between the second support structure and the flange, and between the locking structure and the standard section to separate the contact between the first support structure, the second support structure, the locking structure and the flange of the standard section; multiple fourth support structures are disposed between the bottom of the shipping unit and the transport equipment.

[0007] Optionally, the first support structure includes:

[0008] Main connection board;

[0009] Two side wing plates are symmetrically arranged on both sides of the main connecting plate; each side wing plate has an upward-opening strip groove at its top, the width of which matches the flange thickness of the large end of the standard section; the bottom end of each side wing plate is flush with the bottom of the main connecting plate on one side, and the other side of the bottom end of each side wing plate extends beyond the bottom of the main connecting plate.

[0010] The two side wing plates have parallel and corresponding strip grooves, and the side of the strip groove closest to the main connecting plate has a chamfered edge.

[0011] Optionally, the second support structure includes:

[0012] A steel pipe, the height of which is less than the height of the flange at the large end of the standard segment, and the steel pipe matches the connecting hole at the small end of the standard segment; a retaining ring, the retaining ring being sleeved on the steel pipe, and the size of the retaining ring being larger than the size of the connecting hole;

[0013] In the packaged state, the steel pipe is inserted into the connecting hole, and the retaining ring is located at the bottom of the small end of the standard segment, supporting the small end of the standard segment.

[0014] Optionally, the third support structure includes:

[0015] The first pad is a square block and is disposed between adjacent packaging units; the bottom and top of the first pad are in contact with the flanges of the adjacent packaging units, respectively.

[0016] Optionally, the locking structure includes:

[0017] Steel cable ties, used to bind two adjacent standard segments.

[0018] Optionally, the cushioning structure includes: PVC corrugated board.

[0019] Optionally, the fourth support structure includes:

[0020] The second pad is a square block, with its bottom in contact with the transport equipment and its top in contact with the bottom of the shipping unit.

[0021] Optionally, the horizontal and vertical cross-sectional dimensions of the second pad are both larger than those of the first pad.

[0022] This utility model discloses a standard section packing and shipping device for a tower crane. Each shipping unit includes multiple packing units stacked vertically. Each packing unit includes four standard sections stacked on top of each other. The device comprises: multiple first support structures disposed between the flanges of two adjacent standard sections in each packing unit, supporting the flanges at the larger ends of the two adjacent standard sections; multiple second support structures, each cooperating with a connecting hole at the smaller end of each standard section to support the smaller end of each standard section in each packing unit on the flange of the larger end of the adjacent standard section; and multiple third support structures disposed between adjacent packing units to support the packing. The unit includes: multiple locking structures, each used to fix two adjacent standard segments; multiple buffer structures, each sandwiched between the first support structure and the standard segment, between the second support structure and the flange, and between the locking structures and the standard segment, to prevent contact between the first support structure, the second support structure, the locking structure, and the flange of the standard segment; and multiple fourth support structures, disposed between the bottom of the shipping unit and the transport equipment, thereby reducing the damage rate of standard segment transportation, reducing paint scratches and structural damage, ensuring the structural strength and safety of the standard segments, improving transportation efficiency and loading rate, ensuring overall transportation stability, preventing standard segment misalignment and stacking tilt, and shipping unit offset, and reducing additional costs. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the packaging effect of the standard section packaging and shipping device for a tower crane, which is optional according to an embodiment of this utility model.

[0025] Figure 2 This is a schematic diagram of the first optional support structure according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of an optional second support structure according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the packaging effect of an optional packaging unit according to an embodiment of the present utility model.

[0028] Figure label:

[0029] 11. Main connecting plate; 12. Side wing plate; 13. Groove edge chamfer; 21. Steel pipe; 22. Snap ring; 30. First pad block; 40. Steel cable tie; 50. PVC corrugated board; 60. Second pad block. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 , Figure 4As shown, a standard section packing and shipping device for a tower crane is disclosed. Each shipping unit includes multiple packing units stacked vertically, and each packing unit includes four standard sections stacked on top of each other. The device is characterized by comprising: multiple first support structures disposed between the flanges of two adjacent standard sections in each packing unit, the multiple first support structures supporting the flanges at the larger ends of the two adjacent standard sections; and multiple second support structures, each second support structure engaging with a connecting hole at the smaller end of each standard section for securing the flanges at the larger ends of the adjacent standard sections in each packing unit. The packaging unit is supported by multiple third support structures, which are disposed between adjacent packaging units to support the packaging units; multiple locking structures, each of which is used to fix two adjacent standard sections; multiple buffer structures, which are respectively sandwiched between the first support structure and the standard section, between the second support structure and the flange, and between the locking structure and the standard section to prevent contact between the first support structure, the second support structure, the locking structure and the flange of the standard section; and multiple fourth support structures, which are disposed between the bottom of the shipping unit and the transport equipment.

[0032] Specifically, the number of first support structures is set according to the matching requirements of the flanges of adjacent standard sections. They are installed between the flanges of two adjacent standard sections in each packaging unit. This not only stably supports the flanges at the large ends of the two adjacent standard sections, but also limits the relative horizontal displacement of the adjacent standard sections through their matching with the flanges, ensuring the positional accuracy of the two standard sections when stacked. The flanges are the angle steel on the standard sections.

[0033] Each second support structure is adapted to the connection hole at the small end of the corresponding standard segment, which can stably support the small end of each standard segment in the packaging unit on the flange of the large end of the adjacent standard segment, avoiding the small end being placed randomly without support and unstable, thereby improving the stability of a single standard segment in the packaging unit.

[0034] The third support structure is used to provide spaced support between adjacent packing units. It is set between two adjacent packing units, which can not only prevent the upper packing unit from directly squeezing the lower packing unit, but also ensure the overall flatness of multiple packing units when stacked vertically, thus laying the foundation for the stable stacking of shipping units.

[0035] Each locking structure corresponds to fixing two adjacent standard segments. By applying constraint force, the relative displacement of adjacent standard segments in the vertical and horizontal directions is restricted, ensuring that the four standard segments are stacked to form a stable packaging unit, and further preventing the standard segments from loosening during transportation.

[0036] The buffer structures are respectively sandwiched between the first support structure and the standard segment, between the second support structure and the flange, and between the locking structure and the standard segment. Through physical spacing, the direct contact between the support structure, the locking structure and the flange of the standard segment is blocked, thus avoiding damage caused by hard contact.

[0037] Multiple fourth support structures are installed between the bottom of the shipping unit and the transport equipment to provide uniform bottom support for the entire shipping unit, reduce direct friction between the shipping unit and the bearing surface of the transport equipment during transportation, and limit the lateral sliding of the shipping unit on the transport equipment to prevent the shipping unit from shifting or tilting.

[0038] This application reduces the damage rate of standard segment during transportation, minimizes paint scratches and structural damage, ensures the structural strength and safety of standard segments, improves transportation efficiency and loading rate, guarantees overall transportation stability, avoids misalignment and stacking tilt of standard segments and displacement of shipping units, and reduces additional costs by setting up a first support structure to stably support the large end of the standard segment, a second support structure to stably support the small end of the standard segment, a third support structure to support adjacent packaging units at intervals, a locking structure to fix adjacent standard segments, a buffer structure to prevent direct contact between components and standard segments, and a fourth support structure to ensure the stability of the shipping unit on the transportation equipment.

[0039] In one possible implementation, the first support structure includes: a main connecting plate 11; two side wing plates 12, the two side wing plates 12 being symmetrically arranged on both sides of the main connecting plate 11; each side wing plate 12 has an upward-opening strip groove at its top end, the width of the strip groove matching the flange thickness of the large end of the standard section; the bottom end of each side wing plate 12 is flush with the bottom of the main connecting plate 11 on one side, and the other side of the bottom end of each side wing plate 12 extends beyond the bottom of the main connecting plate 11; wherein the strip grooves on the two side wing plates 12 are parallel and corresponding, and the side of the strip groove closest to the main connecting plate 11 has a chamfered edge 13.

[0040] Specifically, such as Figure 2As shown, the first support structure uses the main connecting plate 11 as the core load-bearing foundation, with two symmetrically arranged side wing plates 12 forming an overall support frame. Each side wing plate 12 has an upward-opening strip groove at its top. The width of this strip groove matches the thickness of the large end flange (angle steel) of the standard segment, specifically used to engage one side of the angle steel of an adjacent standard segment, achieving precise positioning. Simultaneously, the bottom of each side wing plate 12 is divided into two parts: one side, connected to the main connecting plate 11, remains flush with the bottom of the main connecting plate 11, while the other side... Extending beyond the bottom of the main connecting plate 11, these two parts together fit against the outer surface of the angle steel of another standard section in the adjacent standard section, thereby firmly locking the first support structure onto the angle steel of the upper and lower adjacent standard sections, thus limiting the relative displacement of the upper and lower adjacent standard sections in the horizontal and vertical directions, and ensuring that the large end flange of the adjacent standard sections is stably supported; in addition, a chamfer 13 is opened on the side of the strip groove near the main connecting plate 11, which can not only prevent the edge of the strip groove from scratching the surface of the angle steel of the standard section, but also guide the angle steel to be smoothly inserted into the groove, improving the ease of assembly.

[0041] In one possible implementation, the second support structure includes:

[0042] Steel pipe 21, the height of which is less than the height of the flange at the large end of the standard segment, and the steel pipe 21 matches the connecting hole at the small end of the standard segment; clasp 22, the clasp 22 is sleeved on the steel pipe 21, and the size of the clasp 22 is larger than the size of the connecting hole;

[0043] In the packaged state, the steel pipe 21 is inserted into the connecting hole, and the retaining ring 22 is located at the bottom of the small end of the standard segment, supporting the small end of the standard segment.

[0044] Specifically, such as Figure 2 As shown, the height of steel pipe 21 is less than the height of the flange at the large end of the standard segment, and the outer diameter of steel pipe 21 precisely matches the size of the connection hole at the small end of the standard segment, ensuring that steel pipe 21 can be smoothly inserted into the connection hole. Clamping ring 22 is welded onto steel pipe 21, and its outer diameter is larger than the size of the connection hole, preventing clamping ring 22 from being inserted into the connection hole along with steel pipe 21. In the packaged state, steel pipe 21 is inserted from the top end of the connection hole at the small end of the standard segment and exits from the bottom end. Clamping ring 22 fitted onto steel pipe 21 is precisely engaged at the bottom of the small end of the standard segment. The clamping ring 22 supports the small end of the standard segment, while the top of steel pipe 21 contacts the flange at the large end of the adjacent standard segment, ultimately providing stable support to the small end of the standard segment on the flange of the large end of the adjacent standard segment. This prevents instability due to lack of support and ensures the flatness of the stacked standard segments.

[0045] In one possible implementation, the third support structure includes: a first pad 30, which is a square body, and is disposed between adjacent packaging units; the bottom and top of the first pad 30 respectively contact the flange of the adjacent packaging unit.

[0046] Specifically, when multiple packing units are stacked vertically to form a shipping unit, the first pad 30 is placed between two adjacent packing units. Its bottom directly contacts the flange of the standard section at the top of the lower packing unit, and its top contacts the flange of the standard section at the bottom of the upper packing unit. Through its regular square structure, it provides stable support for the upper and lower packing units. This not only prevents the weight of the upper packing unit from directly squeezing the standard section of the lower packing unit and preventing the standard section from deforming due to excessive force, but also ensures a uniform spacing between adjacent packing units through the spacing effect of the pad, ensuring the overall flatness of the entire shipping unit when stacked, and avoiding the impact of packing unit stacking offset on transportation stability.

[0047] In one possible implementation, the locking structure includes a steel cable tie 40 for binding two adjacent standard segments.

[0048] Specifically, after two adjacent standard sections are supported by a first support structure and positioned at their small ends by a second support structure, steel cable ties 40 are wrapped around their outer perimeter. Then, the two ends of the steel cable ties 40 are overlapped and inserted into steel buckles. A special tool is used to tighten the steel cable ties 40 to ensure a tight fit against the standard sections. Finally, the steel buckle locking structure is pressed to secure the two ends of the steel cable ties 40. This method tightly binds adjacent standard sections, limiting relative displacement during transportation. Furthermore, the high strength of the steel cable ties 40 and steel buckles allows them to withstand weight and impact, ensuring packaging stability. The steel cable ties 40 are existing technology and will not be described in detail here.

[0049] In one possible implementation, the buffer structure includes: PVC corrugated board 50.

[0050] Specifically, a PVC corrugated plate 50 is sandwiched between the first support structure and the standard segment to isolate the main connecting plate 11, the side wing plate 12 from direct metal contact with the large end flange of the standard segment, thus avoiding scratching the surface of the standard segment during the support process; a PVC corrugated plate is placed between the second support structure and the flange (i.e., between the bottom of the steel pipe 21 and the flange of the large end of the adjacent standard segment), and the buffering characteristics of the PVC corrugated plate 50 absorb the local pressure of the steel pipe 21 on the flange, preventing the bottom of the steel pipe 21 from damaging the flange surface.

[0051] A PVC corrugated sheet is sandwiched between the locking structure and the standard section. This corrugated sheet serves two purposes: firstly, it prevents the steel cable tie 40 from directly rubbing against the surface of the standard section during binding and tightening, reducing paint scratches or structural damage to the standard section; secondly, it isolates the steel cable tie 40 from direct contact with the metal edges of the standard section, preventing the sharp edges of the standard section from wearing down the steel cable tie 40 during transportation bumps and tensile stress, thus avoiding the steel cable tie 40 breaking and causing locking failure. At the same time, the toughness of the PVC corrugated sheet itself can absorb some of the impact force from transportation vibrations, further reducing the risk of damage between the standard section and various structural components.

[0052] In one possible implementation, the fourth support structure includes:

[0053] The second pad 60 is a square block. The bottom of the second pad 60 contacts the transport equipment, and the top of the second pad 60 contacts the bottom of the shipping unit.

[0054] Specifically, before shipment, a second pad 60 is placed on the bearing surface of the transport equipment, and then the shipping unit is placed on top of the second pad 60, so that the bottom of the second pad 60 contacts the bearing surface of the transport equipment and the top contacts the bottom of the shipping unit. Its regular square structure can provide uniform and stable bottom support for the shipping unit, distribute the weight of the shipping unit to avoid bottom deformation, and at the same time limit the lateral sliding of the shipping unit on the transport equipment to prevent deviation or tilting during transportation and ensure the stability of the shipping unit.

[0055] In one possible implementation, the horizontal and vertical cross-sectional dimensions of the second pad 60 are both larger than those of the first pad 30.

[0056] Specifically, the second pad 60 has larger horizontal and vertical cross-sectional dimensions than the first pad 30, enabling it to more stably bear the weight of the entire shipping unit, more fully distribute pressure, provide more reliable bottom support for the shipping unit, and enhance the ability to restrict lateral displacement of the shipping unit, further ensuring the stability of the shipping unit on the transport equipment. Both the first pad 30 and the second pad 60 are made of wood.

[0057] In practical use, the packing and shipping device of this application requires four first support structures for each standard section, or each packing unit, with two on each side. Each first support structure requires two PVC corrugated sheets (50mm) placed in contact with the standard section. Five steel cable ties (40mm each) are needed for binding. Figure 1As shown. Each steel cable tie 40 requires 4 PVC corrugated sheets 50 to be placed at the contact point with the standard section. The center hole at the small end of the standard section is inserted into the second support structure, and one PVC corrugated sheet 50 is placed at the bottom of the steel pipe 21 of the second support structure where it contacts the flange of the standard section. The first pad 30 has dimensions of 70mm*100mm*200mm. For each shipping unit, 4 second pads 60 are required, with dimensions of 200mm*200mm*240mm.

[0058] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A standard section packing and shipping device for a tower crane, each shipping unit comprising multiple packing units stacked vertically, each packing unit comprising four standard section pieces stacked on top of each other, characterized in that, include: Multiple first support structures are disposed between the flanges of two adjacent standard segments in each packaging unit, and the multiple first support structures are used to support the flanges of the large ends of the two adjacent standard segments. Multiple second support structures, each second support structure cooperating with the connection hole at the small end of each standard segment, are used to support the small end of each standard segment in each packaging unit on the flange of the adjacent large end of the standard segment; Multiple third support structures are disposed between adjacent packaging units to support the packaging units; Multiple locking structures, each of which is used to fix two adjacent standard segments; Multiple buffer structures are respectively sandwiched between the first support structure and the standard segment, between the second support structure and the flange, and between the locking structure and the standard segment, to separate the contact between the first support structure, the second support structure, the locking structure and the flange of the standard segment; Multiple fourth support structures are disposed between the bottom of the shipping unit and the transport equipment.

2. The standard section packing and shipping device for tower cranes according to claim 1, characterized in that, The first support structure includes: Main connection board; Two side wing plates are symmetrically arranged on both sides of the main connecting plate; each side wing plate has an upward-opening strip groove at its top, the width of which matches the flange thickness of the large end of the standard section; the bottom end of each side wing plate is flush with the bottom of the main connecting plate on one side, and the other side of the bottom end of each side wing plate extends beyond the bottom of the main connecting plate. The two side wing plates have parallel and corresponding strip grooves, and the side of the strip groove closest to the main connecting plate has a chamfered edge.

3. The standard section packing and shipping device for tower cranes according to claim 1, characterized in that, The second support structure includes: The steel pipe has a height less than the height of the flange at the large end of the standard segment, and the steel pipe matches the connection hole at the small end of the standard segment. A retaining ring is fitted onto the steel pipe, and the size of the retaining ring is larger than the size of the connecting hole; In the packaged state, the steel pipe is inserted into the connecting hole, and the retaining ring is located at the bottom of the small end of the standard segment, supporting the small end of the standard segment.

4. The standard section packing and shipping device for tower cranes according to claim 1, characterized in that, The third support structure includes: The first pad is a square block and is disposed between adjacent packaging units; the bottom and top of the first pad are in contact with the flanges of the adjacent packaging units, respectively.

5. The standard section packing and shipping device for tower cranes according to claim 1, characterized in that, The locking structure includes: Steel cable ties, used to bind two adjacent standard segments.

6. The standard section packing and shipping device for tower cranes according to claim 1, characterized in that, The buffer structure includes: PVC corrugated board.

7. The standard section packing and shipping device for tower cranes according to claim 4, characterized in that, The fourth support structure includes: The second pad is a square block, with its bottom in contact with the transport equipment and its top in contact with the bottom of the shipping unit.

8. The standard section packing and shipping device for tower cranes according to claim 7, characterized in that, The horizontal and vertical cross-sectional dimensions of the second pad are both larger than those of the first pad.

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