An over-weight control belt for a steel pipe unloading platform and a method of use

Abstract

The application discloses a kind of steel pipe unloading platform with overweight control belt and use method, belong to steel pipe unloading platform technical field.It includes unloading platform, the top end of the unloading platform is inserted with overweight control belt, one end of overweight control belt is fixed with limit load identification end, the other end of overweight control belt is movably connected with control end, and signboard is arranged on limit load identification end and control end.The application solves the problem of low safety factor of existing unloading platform, sets the second steel pipe between the first steel pipe, connects the third steel pipe between each group of first steel pipe to form the unloading platform, reduces the production cost;limit load identification end is inserted at the top of first steel pipe, if 6 meters steel pipe is stacked, 6 meters control end is inserted into the top of another first steel pipe, and so on;if the steel pipe is flush with the horizontal line of first steel pipe, it means that the weight of steel pipe is equal to the load limit, if it exceeds the horizontal line, it is opposite, and the safety factor of unloading platform use is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel pipe unloading platform, in particular to a steel pipe unloading platform super heavy control belt and using method. BACKGROUND

[0002] The unloading platform is a kind of temporary operation table and operation frame commonly set up on construction site, generally used for material turnover, and is divided into mobile unloading platform, floor unloading platform and cantilever unloading platform; the unloading platform is frequently used in the existing building construction process, in order to ensure the safety of the unloading platform, each unloading platform has a load requirement; the steel pipe is not only used for conveying fluid and powder solid, exchanging heat energy, manufacturing mechanical parts and containers; and the steel pipe is used to manufacture building structure net rack, support and mechanical support, which can reduce weight and save metal by 20-40%, and realize factory mechanization construction; and the steel pipe as the main building construction turnover material has relatively heavy weight, therefore, in the unloading process, the following two disadvantages exist:

[0003] 1. In the prior art, in order to ensure the stability of the steel pipe unloading, the existing unloading platform has more structures and more complicated procedures during assembly, and the user investment cost is high;

[0004] 2. In the prior art, due to the large number of steel pipes used in building engineering, the existing unloading platform is difficult to control the number of steel pipes stacked, thereby increasing the operation difficulty for construction personnel, and it is difficult to ensure the construction safety and the safety factor of the unloading platform. SUMMARY

[0005] The purpose of the present application is to provide a steel pipe unloading platform super heavy control belt and using method, by setting a second steel pipe between each first steel pipe, connecting a third steel pipe between each group of first steel pipes to form an unloading platform, which reduces the production cost; the load limit identification end is inserted into the top of the first steel pipe, if 6-meter steel pipes are stacked, the 6-meter control end is inserted into the top of the other first steel pipe, and so on; if the steel pipe is flush with the horizontal line of the first steel pipe, it means that the weight of the steel pipe is equal to the load limit, if it exceeds the horizontal line, it is the opposite; in this way, the safety factor of the unloading platform use and the construction efficiency are improved, the production cost is reduced, and the problems in the above background technology are solved.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme: a steel pipe unloading platform super heavy control belt, comprising: an unloading platform, a super heavy control belt for detecting whether the load of the unloading platform is overloaded is inserted into the top end of the unloading platform, one end of the super heavy control belt is fixedly sleeved with a load limit identification end, the other end of the super heavy control belt is movably sleeved with a control end, and identification boards are arranged on the surfaces of the load limit identification end and the control end respectively.

[0007] Further, the unloading platform comprises first steel pipes, slots, second steel pipes, third steel pipes and fourth steel pipes, the first steel pipes are vertically provided in three groups, each group has two first steel pipes, a slot is formed at the top of each first steel pipe, two second steel pipes are transversely arranged between each two first steel pipes, two third steel pipes are symmetrically connected between each two groups of first steel pipes, and a fourth steel pipe is obliquely inserted between each two third steel pipes.

[0008] Further, the limit load identification end and the control end are consistent in structure and comprise a clamping block, a control band socket and a fixed end rod, the signboards of the limit load identification end and the control end are respectively arranged at the upper end of the surface of the clamping block, the control band socket is arranged below the signboard close to the signboard, the clamping block is sleeved on the overload control band through the control band socket, and the fixed end rod is arranged below the control band socket.

[0009] Further, the control end is sectional and comprises a 1.5-meter control end, a 2.5-meter control end, a 4-meter control end and a 6-meter control end, wherein the 1.5-meter control end is fixedly sleeved on the other end of the overload control band, the 2.5-meter control end is arranged on one side of the 1.5-meter control end at intervals, the 4-meter control end is arranged on one side of the 2.5-meter control end at intervals, and the 6-meter control end is arranged on one side of the 4-meter control end at intervals.

[0010] Further, the signboard on the surface of the limit load identification end is a weight sign, and the signboard on the surface of the control end is a distance sign.

[0011] Further, the limit load identification end and the control end are respectively inserted into the slots at the top ends of the first steel pipes, and the inner diameters of the slots are matched with the outer diameters of the limit load identification end and the control end.

[0012] Further, the inner diameter of the control band socket is matched with the thickness of the overload control band.

[0013] A use method of an overload control band for a steel pipe unloading platform, comprising the following steps:

[0014] S1: three groups of first steel pipes are formed by dividing six first steel pipes into three groups, each two first steel pipes form a group and are oppositely and vertically arranged, two second steel pipes are transversely arranged between each two first steel pipes, two third steel pipes are symmetrically connected between each two groups of first steel pipes, and a fourth steel pipe is obliquely inserted between each two third steel pipes, so as to form a stable unloading platform;

[0015] S2: three overload control bands are placed on the top of each group of first steel pipes, and the clamping blocks of the limit load identification ends on each overload control band are sequentially inserted into the slots at the top of the first steel pipes;

[0016] S3: according to the actual demand, the overload control belt is selected to limit the load, if the steel pipe is stacked for 6 meters, the 6-meter control end in the control end is inserted into the slot at the top of the first steel pipe on the other side; if the steel pipe is stacked for 4 meters, the 4-meter control end in the control end is inserted into the slot at the top of the first steel pipe on the other side; if the steel pipe is stacked for 2.5 meters, the 2.5-meter control end in the control end is inserted into the slot at the top of the first steel pipe on the other side; if the steel pipe is stacked for 1.5 meters, the 1.5-meter control end in the control end is inserted into the slot at the top of the first steel pipe on the other side;

[0017] S4: after adjusting the overload control belt to limit the load, the steel pipe is stacked on the overload control belt, and whether the stacked steel pipe is flush with the horizontal line of the first steel pipe in the unloading platform is observed; if the stacked steel pipe is flush with the horizontal line of the first steel pipe in the unloading platform, it means that the weight of the stacked steel pipe is equal to the overload control belt limit load; if the stacked steel pipe exceeds the horizontal line of the first steel pipe in the unloading platform, it means that the weight of the stacked steel pipe exceeds the overload control belt limit load.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1. The present application divides six first steel pipes into three groups, with each two first steel pipes as a group, arranged in opposite vertical positions, two second steel pipes are arranged transversely between each two first steel pipes, two third steel pipes are symmetrically connected between each two groups of first steel pipes, and a fourth steel pipe is obliquely inserted between each two third steel pipes, and finally each overload control belt is inserted into the slot at the top of each group of first steel pipes in turn, to form a stable unloading platform; the above method has reasonable structure, convenient and fast assembly, and effectively reduces the production cost.

[0020] 2. The clamping block at the upper limit load identification end of each overload control belt is inserted into the slot at the top of the first steel pipe in turn, and the limit load of the overload control belt is selected according to the actual demand, wherein the control end is divided into: 1.5-meter control end, 2.5-meter control end, 4-meter control end and 6-meter control end; if the steel pipe is stacked for 6 meters, the 6-meter control end is inserted into the slot of the first steel pipe on the other side, if the steel pipe is stacked for 4 meters, the 4-meter control end is inserted into the slot of the first steel pipe on the other side, and so on; after adjusting the limit load of the overload control belt, the steel pipe is stacked on the overload control belt; if the steel pipe is flush with the horizontal line of the first steel pipe, it means that the weight of the steel pipe is equal to the limit load of the overload control belt; if the steel pipe exceeds the horizontal line of the first steel pipe, it means that the weight of the steel pipe exceeds the limit load of the overload control belt; thus it is judged whether the steel pipe stacked on the unloading platform is within the reasonable load bearing range, and this method controls the load of the unloading platform simply and effectively improves the safety factor and construction efficiency of the unloading platform. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 Figure is a schematic diagram of the steel pipe over-weight control belt for the unloading platform of the present application connected with a belt;

[0022] Fig. 2 Figure is a schematic diagram of the front view of the steel pipe over-weight control belt for the unloading platform of the present application;

[0023] Fig. 3 Figure is a schematic diagram of the over-load identification end and the control end for the unloading platform of the present application.

[0024] In the figure: 1, unloading platform; 2, over-weight control belt; 3, over-load identification end; 4, control end; 5, identification board; 11, first steel pipe; 12, slot; 13, second steel pipe; 14, third steel pipe; 15, fourth steel pipe; 31, clamping block; 32, control belt clamping opening; 33, fixed end rod; 41, 1.5-meter control end; 42, 2.5-meter control end; 43, 4-meter control end; 44, 6-meter control end. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0026] In order to solve the problems of complicated assembly and high investment cost of the existing unloading platform 1, please refer to Figs. 1-3 The technical solutions provided in the embodiments are as follows:

[0027] The over-weight control belt for the steel pipe unloading platform, the unloading platform 1, the top end of the unloading platform 1 is inserted with the over-weight control belt 2 for detecting whether the load capacity of the unloading platform 1 is over-weight, one end of the over-weight control belt 2 is fixedly sleeved with the over-load identification end 3, the other end of the over-weight control belt 2 is movably sleeved with the control end 4, the identification board 5 is arranged on the surface of the over-load identification end 3 and the control end 4 respectively; wherein the identification board 5 on the surface of the over-load identification end 3 is a weight identification, and the identification board 5 on the surface of the control end 4 is a distance identification.

[0028] Specifically, by inserting the overload limit identification end 3 at one end of the overload control belt 2 into the top end on one side of the unloading platform 1, and adjusting the overload limit of the overload control belt 2 according to the actual length of the stacked steel pipes, by dividing the control end 4 at the other end of the overload control belt 2 into four sections, and inserting a section corresponding to the actual length of the steel pipe into the top end on the other side of the unloading platform 1, the entire overload control belt 2 is inserted into the top of the unloading platform 1, thereby completing the assembly of the entire unloading platform 1; then the steel pipes are stacked on the overload control belt 2, and it is observed whether the stacked steel pipes exceed the horizontal line at the top end of the unloading platform 1, and then it is observed whether the stacked steel pipes are flat with the horizontal line, which indicates that the weight of the steel pipes is equal to the overload limit of the overload control belt 2; if the steel pipes exceed the horizontal line at the top end of the unloading platform 1, it indicates that the weight of the steel pipes exceeds the overload limit of the overload control belt 2; thereby determining whether the steel pipes stacked on the unloading platform 1 are within a reasonable load range, effectively improving the safety factor and construction efficiency of the unloading platform 1.

[0029] The unloading platform 1 comprises a first steel pipe 11, a slot 12, a second steel pipe 13, a third steel pipe 14 and a fourth steel pipe 15. The first steel pipe 11 is vertically arranged in three groups, each group having two first steel pipes 11. The top of each first steel pipe 11 is provided with a slot 12. Two second steel pipes 13 are transversely arranged between each two first steel pipes 11. Two third steel pipes 14 are symmetrically connected between each two groups of first steel pipes 11. One fourth steel pipe 15 is obliquely inserted between each two third steel pipes 14. The slot 12 at the top end of the first steel pipe 11 is respectively inserted with the overload limit identification end 3 and the control end 4, and the inner diameter of the slot 12 is matched with the outer diameter of the overload limit identification end 3 and the control end 4.

[0030] Specifically, the six first steel pipes 11 are divided into three groups, each two first steel pipes 11 forming a group and being oppositely and vertically arranged. Two second steel pipes 13 are transversely arranged between each two first steel pipes 11. Two third steel pipes 14 are symmetrically connected between each two groups of first steel pipes 11. One fourth steel pipe 15 is obliquely inserted between each two third steel pipes 14. Each overload control belt 2 is sequentially inserted into the slot 12 at the top of each group of first steel pipes 11, thereby forming a stable unloading platform 1. The above method has a reasonable structure, is easy and fast to assemble, and effectively reduces the production cost.

[0031] To solve the problem that the bearing capacity of the existing unloading platform 1 is not easy to control, and the safety factor and construction efficiency of the unloading platform 1 are reduced, please refer to Figs. 1-3 The embodiment provides the following technical solutions:

[0032] The structure of the load limit identification end 3 and the control end 4 is consistent, including a clamping block 31, a control band clamping opening 32 and a fixed end rod 33, the identification plate 5 of the load limit identification end 3 and the control end 4 is arranged on the upper end of the surface of the clamping block 31, the control band clamping opening 32 is arranged below the identification plate 5 of the clamping block 31, and the clamping block 31 is sleeved on the overweight control band 2 through the control band clamping opening 32, the inner diameter of the control band clamping opening 32 is matched with the thickness of the overweight control band 2, and the fixed end rod 33 is arranged below the control band clamping opening 32.

[0033] The control end 4 is segmented, including a 1.5-meter control end 41, a 2.5-meter control end 42, a 4-meter control end 43 and a 6-meter control end 44, wherein the 1.5-meter control end 41 is fixedly sleeved on the other end of the overweight control band 2, the 2.5-meter control end 42 is arranged on one side of the 1.5-meter control end 41, the 4-meter control end 43 is arranged on one side of the 2.5-meter control end 42, and the 6-meter control end 44 is arranged on one side of the 4-meter control end 43.

[0034] Specifically, the clamping block 31 of the load limit identification end 3 is fixedly sleeved on one end of the overweight control band 2, and then the 1.5-meter control end 41, the 2.5-meter control end 42, the 4-meter control end 43 and the 6-meter control end 44 of the control end 4 are sequentially sleeved on the other end of the overweight control band 2 according to the distance; the clamping block 31 of the load limit identification end 3 on each overweight control band 2 is sequentially inserted into the insertion slot 12 at the top of the first steel pipe 11, and then the load limit of the overweight control band 2 is selected according to actual needs; if the steel pipes are stacked by 6 meters, the 6-meter control end 44 is inserted into the insertion slot 12 of the first steel pipe 11 on the other side; if the steel pipes are stacked by 4 meters, the 4-meter control end 43 is inserted into the insertion slot 12 of the first steel pipe 11 on the other side; if the steel pipes are stacked by 2.5 meters, the 2.5-meter control end 42 is inserted into the insertion slot 12 at the top of the first steel pipe 11 on the other side; if the steel pipes are stacked by 1.5 meters, the 1.5-meter control end 41 is inserted into the insertion slot 12 at the top of the first steel pipe 11 on the other side; and so on; after the load limit of the overweight control band 2 is adjusted to be appropriate, the steel pipes are stacked on the overweight control band 2; if the steel pipes are flush with the horizontal line of the first steel pipe 11, it means that the weight of the steel pipes is equal to the load limit of the overweight control band 2; if the steel pipes exceed the horizontal line of the first steel pipe 11, it means that the weight of the steel pipes exceeds the load limit of the overweight control band 2; thus it is determined whether the steel pipes stacked on the unloading platform 1 are within a reasonable load bearing range, the method for controlling the load of the unloading platform 1 is simple and clear, and the safety factor and construction efficiency of the unloading platform 1 are effectively improved.

[0035] A use method of the steel pipe unloading platform overweight control band, including the following steps:

[0036] S1: by six first steel pipe 11 into three groups, every two first steel pipe 11 for a group, opposite vertical set, between every two first steel pipe 11 transverse two second steel pipe 13, then between every two first steel pipe 11 symmetrically connecting two third steel pipe 14, and between every two third steel pipe 14 oblique one fourth steel pipe 15, so as to constitute a stable unloading platform 1;

[0037] S2: by three overweight control belt 2 placed on the top of every group of first steel pipe 11, and every overweight control belt 2 on the load limit identification end 3 of the block 31 is inserted into the slot 12 on the top of the first steel pipe 11 in turn;

[0038] S3: according to the actual demand to select the overload control belt 2 limit load, if the stacking 6 meters of steel pipe, can control end 4 in 6 meters of control end 44 inserted in the other side of the first steel pipe 11 top end of the slot 12; If the stacking 4 meters of steel pipe, can control end 4 in 4 meters of control end 43 inserted in the other side of the first steel pipe 11 top end of the slot 12; If the stacking 2.5 meters of steel pipe, can control end 4 in 2.5 meters of control end 42 inserted in the other side of the first steel pipe 11 top end of the slot 12; If the stacking 1.5 meters of steel pipe, can control end 4 in 1.5 meters of control end 41 inserted in the other side of the first steel pipe 11 top end of the slot 12;

[0039] S4: after adjusting the overload control belt 2 limit load, and then the steel pipe stacking on the overload control belt 2, and observe whether the stacking of steel pipe with unloading platform 1 in the first steel pipe 11 level; If the stacking of steel pipe is just with unloading platform 1 in the first steel pipe 11 level, then represent the weight of the stacking of steel pipe is just with the overload control belt 2 limit load equal; If the stacking of steel pipe exceeds the unloading platform 1 in the first steel pipe 11 level, then represent the weight of the stacking of steel pipe exceeds the overload control belt 2 limit load.

[0040] Working principle: in the use of unloading platform 1, according to Fig. 1 、 Fig. 2 and Fig. 3It can be known that, by arranging every two first steel pipes 11 in opposite vertical positions, connecting two second steel pipes 13 between every two first steel pipes 11, symmetrically arranging two third steel pipes 14 between every two groups of first steel pipes 11, and obliquely inserting a fourth steel pipe 15 between every two third steel pipes 14, finally inserting every super-heavy control belt 2 into the top of every group of first steel pipes 11 in turn, a stable unloading platform 1 is formed; by inserting the load limit identification end 3 into the top of the first steel pipe 11, if the steel pipes are stacked for 6 meters, the 6-meter control end 44 is inserted into the top of the first steel pipe 11 on the other side, and so on; after adjusting the load limit of the super-heavy control belt 2, the steel pipes are stacked on the super-heavy control belt 2; if the steel pipes are just in line with the horizontal line of the first steel pipe 11, it means that the weight of the steel pipes is just equal to the load limit of the super-heavy control belt 2; if the steel pipes exceed the horizontal line, it is the opposite; this method is convenient and fast to assemble, reduces the production cost, and simply and clearly controls the load of the unloading platform 1, improves the safety factor and construction efficiency.

[0041] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply that these entities or actions are in any way mutually exclusive or in any way arranged in a sequence. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0042] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A superheavy control tape for a steel pipe unloading platform, comprising: The unloading platform (1) is characterized in that the top end of the unloading platform (1) is inserted with an overload control belt (2) for detecting whether the load of the unloading platform (1) is overweight, one end of the overload control belt (2) is fixedly sleeved with a load limit identification end (3), the other end of the overload control belt (2) is movably sleeved with a control end (4), and the load limit identification end (3) and the control end (4) are respectively provided with signboards (5) on the surfaces thereof. The unloading platform (1) comprises first steel pipes (11), insertion grooves (12), second steel pipes (13), third steel pipes (14) and fourth steel pipes (15), three groups of first steel pipes (11) are vertically arranged, each group has two first steel pipes (11), the top of each first steel pipe (11) is provided with an insertion groove (12), two second steel pipes (13) are transversely arranged between each two first steel pipes (11), two third steel pipes (14) are symmetrically connected between each two groups of first steel pipes (11), and one fourth steel pipe (15) is obliquely inserted between each two third steel pipes (14). The load limit identification end (3) and the control end (4) are identical in structure and comprise clamping blocks (31), control belt clamping mouths (32) and fixed end rods (33), the signboards (5) of the load limit identification end (3) and the control end (4) are respectively arranged at the upper end of the surface of the clamping block (31), the control belt clamping mouth (32) is arranged below the signboard (5) and close to the clamping block (31), the clamping block (31) is sleeved on the overload control belt (2) through the control belt clamping mouth (32), and the fixed end rod (33) is arranged below the control belt clamping mouth (32). The control end (4) is sectional and comprises a 1.5-meter control end (41), a 2.5-meter control end (42), a 4-meter control end (43) and a 6-meter control end (44), wherein the 1.5-meter control end (41) is fixedly sleeved at the other end of the overload control belt (2), the 2.5-meter control end (42) is arranged on one side of the 1.5-meter control end (41) at intervals, the 4-meter control end (43) is arranged on one side of the 2.5-meter control end (42) at intervals, and the 6-meter control end (44) is arranged on one side of the 4-meter control end (43) at intervals.

2. A super weight control belt for a steel pipe unloading platform according to claim 1, characterized in that: The steel pipes are stacked on the overload control belt (2), and whether the stacked steel pipes are flush with the horizontal line of the first steel pipe (11) in the unloading platform (1) is observed; if the stacked steel pipes are flush with the horizontal line of the vertical first steel pipe (11) in the unloading platform (1), it represents that the weight of the stacked steel pipes is equal to the load limit of the overload control belt (2); if the stacked steel pipes exceed the horizontal line of the vertical first steel pipe (11) in the unloading platform (1), it represents that the weight of the stacked steel pipes exceeds the load limit of the overload control belt (2).

3. A super weight control belt for a steel pipe unloading platform according to claim 2, characterized in that: The signboard (5) on the surface of the load limit identification end (3) is a weight identification, and the signboard (5) on the surface of the control end (4) is a distance identification. The insertion grooves (12) at the top ends of the first steel pipes (11) are respectively inserted with the load limit identification end (3) and the control end (4), and the inner diameter of the insertion groove (12) is matched with the outer diameter of the load limit identification end (3) and the control end (4).

4. A super weight control belt for a steel pipe unloading platform according to claim 3, characterized in that: The inner diameter of the control belt buckle (32) is matched with the thickness of the overweight control belt (2).

5. A method of using the excess weight control belt for a steel pipe unloading platform according to claim 4, characterized in that: The method comprises the following steps: S1: by dividing six first steel pipes (11) into three groups, every two first steel pipes (11) as a group, opposite vertical setting, two second steel pipes (13) are arranged transversely between every two first steel pipes (11), two third steel pipes (14) are symmetrically connected between every two groups of first steel pipes (11), and a fourth steel pipe (15) is obliquely inserted between every two third steel pipes (14), so as to form a stable unloading platform (1); S2: by placing three overweight control belts (2) on the top of every group of first steel pipes (11), and inserting the clamping block (31) of the load limit identification end (3) on every overweight control belt (2) into the slot (12) on the top of the first steel pipe (11) in sequence; S3: according to the actual demand, the load limit of the overweight control belt (2) is selected, if the steel pipes of 6 meters are stacked, the 6-meter control end (44) in the control end (4) is inserted into the slot (12) on the top of the first steel pipe (11) on the other side; if the steel pipes of 4 meters are stacked, the 4-meter control end (43) in the control end (4) is inserted into the slot (12) on the top of the first steel pipe (11) on the other side; if the steel pipes of 2.5 meters are stacked, the 2.5-meter control end (42) in the control end (4) is inserted into the slot (12) on the top of the first steel pipe (11) on the other side; if the steel pipes of 1.5 meters are stacked, the 1.5-meter control end (41) in the control end (4) is inserted into the slot (12) on the top of the first steel pipe (11) on the other side; S4: after adjusting the load limit of the overweight control belt (2), the steel pipes are stacked on the overweight control belt (2), and whether the stacked steel pipes are flush with the horizontal line of the first steel pipe (11) in the unloading platform (1) is observed; if the stacked steel pipes are flush with the horizontal line of the vertical first steel pipe (11) in the unloading platform (1), it means that the weight of the stacked steel pipes is equal to the load limit of the overweight control belt (2); if the stacked steel pipes exceed the horizontal line of the vertical first steel pipe (11) in the unloading platform (1), it means that the weight of the stacked steel pipes exceeds the load limit of the overweight control belt (2).

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