Device for carrying rectangular steel pipes based on meshing and interpenetrating mode

Abstract

The utility model discloses a device for carrying rectangular steel pipes based on meshing and penetrating, and belongs to the technical field of rectangular steel pipe production auxiliary equipment. The device comprises a first support, a second support, four third supports, four fourth supports, four rotating shafts, forty screws, two rack plates, eight gears, two supporting plates, eight rolling bearings, four wheels and twenty hinges. The device can achieve the purpose of carrying horizontally-arranged rectangular steel pipes and has the advantages of being low in manufacturing cost, easy to operate and good in using effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary equipment for rectangular steel pipe production, and particularly relates to a device for transporting rectangular steel pipes based on meshing and interpenetrating type. Background Art

[0002] Compared with profiles of other cross-sections, steel pipes have relatively high resistance to bending and torsion; compared with circular steel pipes, rectangular steel pipes have a larger stress area and stable structural performance. Therefore, rectangular steel pipes are widely used in the fields of mechanical manufacturing and structural engineering. At present, large steel pipes are mostly transported by lifting equipment, and steel wire ropes or nylon belts are also used. If the position of bundling the steel pipes deviates to a certain extent, the steel pipes are prone to safety accidents such as tilting and even falling off during transportation; small steel pipes are mostly transported by transport trolleys. Since the structure of the transport trolleys is usually designed relatively simply, the production efficiency of the transport trolleys is relatively low, and there are also certain safety problems. The above-mentioned handling devices are all designed for circular steel pipes, and there are few handling devices designed for rectangular steel pipes. Therefore, it is necessary to develop a device for transporting rectangular steel pipes.

[0003] After retrieval, it is found that there are three literature patents most relevant to the technology of the present utility model, and the specific contents are described as follows:

[0004] Document CN 206984081 U discloses a trolley for transporting steel pipes. The device mainly consists of a front vehicle body, a base, a side vehicle body, a rear vehicle body, a fixing plate, a middle sealing plate, a bottom plate and universal wheels. The device can fix the position of the steel pipes and prevent the steel pipes from being knocked during transportation, but the mechanization degree of the device is relatively low and it requires the physical strength of the operator. Therefore, the production efficiency of the device is relatively low.

[0005] Document CN 208802024 U discloses a trolley for transporting steel pipes. The device mainly consists of a bottom plate, rollers, a first baffle, a second baffle, a trolley handle, a stop rod and an elastic cord. Since the device is provided with a fixing device, it can effectively prevent the steel pipes from falling during transportation, but the mechanization degree of the device is relatively low and it requires the physical strength of the operator. Therefore, the production efficiency of the device is relatively low.

[0006] Document CN 217260079 U discloses a small trolley for clamping and transporting steel pipes. The device mainly consists of an upper clamp support, a lower clamp pressure rod, a pin rod and rollers. Since the design structure of the device is relatively simple, the manufacturing cost is relatively low. At the same time, the mechanization degree of the device is relatively low and it requires the physical strength of the operator. Therefore, the production efficiency of the device is relatively low. Content of the Utility Model

[0007] In order to overcome one or more of the problems existing in the prior art, the present utility model provides a device for transporting rectangular steel pipes based on meshing and interpenetrating. The present utility model is designed based on a symmetric structure. The use of screws can not only realize the linkage between the third bracket and the second bracket, but also realize the linkage between the first bracket and the rack plate; the combined use of the third bracket, the rolling bearing, the rotating shaft and the gear can realize the vertical movement of the rack plate; the combined use of the first bracket, the support plate and the fourth bracket can realize the clamping of the rectangular steel pipe; the use of the second bracket cart can not only realize the relative setting of the third bracket, but also realize the horizontal movement of the device, thereby realizing the transportation of the rectangular steel pipe. Therefore, the use effect of the device of the present utility model is relatively good.

[0008] The technical solution adopted by the present utility model to solve its technical problems is described as follows.

[0009] The device for transporting rectangular steel pipes based on meshing and interpenetrating provided by the present utility model includes: a first bracket, a second bracket, four third brackets, four fourth brackets, four rotating shafts, forty screws, two rack plates, eight gears, two support plates, eight rolling bearings, four wheels and twenty hinges;

[0010] The first bracket is connected and composed of a first body, two first bosses and four second bosses. The first body, the first boss and the second boss are all symmetric structures in the shape of a cuboid. The two first bosses are simultaneously located on the upper end surface of the first body, and the four second bosses are simultaneously located on the lower end surface of the first body; four first screw holes are symmetrically opened on the first boss, and the screws are screwed into the first screw holes; a first through hole in the shape of a cuboid is opened on the second boss, and the support plate is penetrated through the first through hole;

[0011] The second bracket is connected and composed of a second body, four third bosses and four fourth bosses. The second body, the third boss and the fourth boss are all symmetric structures in the shape of a cuboid. The four third bosses are simultaneously located on the lower end surface of the second body, and the four fourth bosses are respectively located on the lower end surfaces of the four third bosses; a third through hole in the shape of a cuboid is opened at the middle position of the second body, and the first bracket and the rack plate are penetrated through the third through hole; a first groove in the shape of a cuboid is opened on the lower end surface of the fourth boss, and the wheel is penetrated through the first groove; a fourth through hole in the shape of a cylinder is respectively opened on the front and rear sides of the first groove, and the hinge is penetrated through the fourth through hole; four second screw holes are symmetrically opened on the fourth boss, and the screws are screwed into the second screw holes;

[0012] The third bracket is composed of a fourth body, two sixth bosses and a seventh boss connected together. The fourth body, the sixth bosses and the seventh boss are all symmetric structures in the shape of a cuboid. The two sixth bosses are both located on the left end face of the fourth body, and the seventh boss is located on the right end face of the fourth body. A through groove in the shape of a cuboid can be formed between the two sixth bosses, and the fourth boss of the second bracket is inserted into the through groove. Four cylindrical fifth through holes are symmetrically formed in the sixth boss, and screws are inserted into the fifth through holes. Two cylindrical second grooves are symmetrically formed on the rear end face of the seventh boss, and rolling bearings are inserted into the second grooves. A cylindrical sixth through hole is formed at the axial position of the second groove, and the bearing section of the rotating shaft is inserted into the sixth through hole.

[0013] The fourth bracket is composed of a sixth body and an eighth boss connected together. The sixth body and the eighth boss are both symmetric structures in the shape of a cuboid. The eighth boss is located on the lower end face of the sixth body. The eighth boss is inserted into the ninth through hole of the support plate to ensure the positioning connection between the support plate and the first bracket.

[0014] The rack plate is composed of a fifth body and multiple first racks connected together. The fifth body is a symmetric structure in the shape of a cuboid, and multiple first racks are evenly located on the left end face of the fifth body. Four cylindrical seventh through holes are symmetrically formed in the fifth body, and screws are inserted into the seventh through holes.

[0015] The gear is a symmetric structure in the shape of a cylinder. An octahedron-shaped eighth through hole is formed at the axial position of the gear, and the clamping section of the rotating shaft is inserted into the eighth through hole. Multiple second racks are evenly arranged on the gear along the circumferential direction for meshing with the first racks of the rack plate.

[0016] In some embodiments, the rotating shaft is composed of bearing sections at both ends and a clamping section in the middle. The bearing sections are symmetric structures in the shape of a cylinder for inserting the rolling bearings. The clamping section is a symmetric structure in the shape of a regular octahedron for inserting the eighth through hole of the gear. Two groups of four cylindrical second through holes are symmetrically formed in the clamping section, and hinges are inserted into the second through holes.

[0017] In some embodiments, the screw is composed of a third body and a fifth boss connected coaxially. The third body and the fifth boss are both symmetric structures in the shape of a cylinder. The fifth boss is located on the right end face of the third body. Threads are provided at the end of the fifth boss for screwing into the first screw hole of the first bracket or the second screw hole of the second bracket.

[0018] In some embodiments, the support plate is a symmetric cuboid structure, and two cuboid-shaped ninth through holes are symmetrically formed in the support plate, and the eighth boss of the fourth support is inserted through the ninth through hole.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1) The device for transporting rectangular steel pipes based on meshing and interpenetrating provided by the present utility model includes a first support, a second support, four third supports, four fourth supports, four rotating shafts, forty screws, two rack plates, eight gears, two support plates, eight rolling bearings, four wheels and twenty hinges. Since the materials are common and easy to process and form, the manufacturing cost of the device of the present utility model is relatively low.

[0021] 2) When the present utility model is in use, four fourth supports are drawn out from the ninth through holes of the two support plates, and two support plates are drawn out from the first through holes of the first support. The second support cart is horizontally moved, and at the same time, the four rotating shafts are rotated reversely to lower the first support; the two support plates are inserted through the first through holes of the first support, and the eighth bosses of the four fourth supports are inserted through the ninth through holes of the two support plates. At the same time, the four rotating shafts are rotated forward to raise the first support and the rectangular steel pipe, and the second support cart is horizontally moved. Therefore, the operation of the device of the present utility model is relatively simple.

[0022] 3) The present utility model is designed based on a symmetric structure. The use of screws can not only realize the linkage between the third support and the second support, but also realize the linkage between the first support and the rack plate; the combined use of the third support, the rolling bearing, the rotating shaft and the gear can realize the vertical movement of the rack plate; the combined use of the first support, the support plate and the fourth support can realize the positioning of the rectangular steel pipe; the use of the second support cart can not only realize the relative setting of the third support, but also realize the horizontal movement of the device, thereby realizing the transportation of the rectangular steel pipe. Therefore, the use effect of the device of the present utility model is relatively good.

[0023] Through the device for transporting rectangular steel pipes based on meshing and interpenetrating provided by the present utility model, the purpose of transporting horizontally arranged rectangular steel pipes can be achieved. The device of the present utility model has the characteristics of low manufacturing cost, simple operation and good use effect. Description of the Drawings

[0024] Figure 1 It is the front view structural schematic diagram of the device for transporting rectangular steel pipes based on meshing and interpenetrating of the present utility model when the first support is in the low position and centered on the rectangular steel pipe;

[0025] Figure 2 It is the left view structural schematic diagram of the device for transporting rectangular steel pipes based on meshing and interpenetrating of the present utility model when the first support is in the low position and centered on the rectangular steel pipe;

[0026] Figure 3 The front view structural schematic diagram of the device for transporting rectangular steel pipes based on meshing and interpenetrating type of the present utility model when the first bracket is in the low position and penetrates the support plate;

[0027] Figure 4 The front view structural schematic diagram of the device for transporting rectangular steel pipes based on meshing and interpenetrating type of the present utility model when the first bracket is in the high position and lifts the rectangular steel pipe;

[0028] Figure 5 The left view structural schematic diagram of the device for transporting rectangular steel pipes based on meshing and interpenetrating type of the present utility model when the first bracket is in the high position and lifts the rectangular steel pipe;

[0029] Figure 6 The top view structural schematic diagram of the device for transporting rectangular steel pipes based on meshing and interpenetrating type of the present utility model when the first bracket is in the high position and lifts the rectangular steel pipe;

[0030] Figure 7 The front view structural schematic diagram of the first bracket of the present utility model;

[0031] Figure 8 The left view structural schematic diagram of the first bracket of the present utility model;

[0032] Figure 9 The left view structural schematic diagram of the rotating shaft of the present utility model;

[0033] Figure 10 The front view structural schematic diagram of the second bracket and the wheel after assembly of the present utility model;

[0034] Figure 11 The left view structural schematic diagram of the second bracket and the wheel after assembly of the present utility model;

[0035] Figure 12 The bottom view structural schematic diagram of the second bracket and the wheel after assembly of the present utility model;

[0036] Figure 13 The front view structural schematic diagram of the screw of the present utility model;

[0037] Figure 14 The front view structural schematic diagram of the third bracket of the present utility model;

[0038] Figure 15 The top view structural schematic diagram of the third bracket of the present utility model;

[0039] Figure 16 The left view structural schematic diagram of the rack plate of the present utility model;

[0040] Figure 17 The front view structural schematic diagram of the gear of the present utility model;

[0041] Figure 18 It is a schematic top view structure diagram of the support plate of the present utility model;

[0042] Figure 19 It is a schematic front view structure diagram of the fourth support of the present utility model;

[0043] Figure 20 It is a schematic diagram of the forward rotation of the rotating shaft when the first support of the present utility model changes from a low position to a high position;

[0044] Figure 21 It is a schematic diagram of the reverse rotation of the rotating shaft when the first support of the present utility model changes from a high position to a low position.

[0045] Explanation of reference numerals: 1 - First support; 101 - First body; 102 - First boss; 103 - Second boss; 104 - First screw hole; 105 - First through hole; 2 - Rotating shaft; 201 - Clamping section; 202 - Bearing section; 203 - Second through hole; 3 - Second support; 301 - Second body; 302 - Third boss; 303 - Fourth boss; 304 - Third through hole; 305 - Second screw hole; 306 - Fourth through hole; 307 - First groove; 4 - Screw; 401 - Third body; 402 - Fifth boss; 5 - Third support; 501 - Fourth body; 502 - Sixth boss; 503 - Seventh boss; 504 - Fifth through hole; 505 - Second groove; 506 - Sixth through hole; 507 - Through groove; 6 - Rack plate; 601 - Fifth body; 602 - First rack; 603 - Seventh through hole; 7 - Gear; 701 - Second rack; 702 - Eighth through hole; 8 - Support plate; 801 - Ninth through hole; 9 - Fourth support; 901 - Sixth body; 902 - Eighth boss; 10 - Rolling bearing; 11 - Wheel; 12 - Hinge; 13 - Rectangular steel pipe. Detailed implementation manners

[0046] The content of the present utility model will be described in detail below through embodiments and drawings. The embodiments are only for understanding the present utility model and do not limit the content of the present utility model.

[0047] Combined with Figures 1 to 6As shown in the figure, the present utility model provides a device for transporting rectangular steel pipes based on meshing and interpenetrating type, which comprises a first bracket 1, a second bracket 3, four third brackets 5, four fourth brackets 9, four rotating shafts 2, forty screws 4, two rack plates 6, eight gears 7, two support plates 8, eight rolling bearings 10, four wheels 11 and twenty hinges 12; wherein, four fourth bosses 303 of the second bracket 3 are inserted into four through grooves 507 of the four third brackets 5 and are connected by thirty-two of the screws 4; eight rolling bearings 10 are installed in eight second grooves 505 of the four third brackets 5, and eight bearing sections 202 of the four rotating shafts 2 are inserted into the eight rolling bearings 10; four clamping sections 201 of the four rotating shafts 2 are inserted through eight of the gears 7 and are positioned by sixteen of the hinges 12; the eight gears 7 and the two rack plates 6 are meshed through second racks 701 and first racks 602, two first bosses 102 of the first bracket 1 are inserted between the two rack plates 6 and are connected by eight of the screws 4; two support plates 8 are inserted through four first through holes 105 of the first bracket 1, and four eighth bosses 902 of the four fourth brackets 9 are inserted through four ninth through holes 801 of the two support plates 8; four wheels 11 are inserted through four first grooves 307 of the second bracket 3 and are hinged by four of the hinges 12.

[0048] The assembly process of the device for transporting rectangular steel pipes based on meshing and interpenetrating type provided by the present utility model:

[0049] Combined with Figures 1 to 19 As shown in the figure, first, four wheels 11 are inserted through four first grooves 307 of a second bracket 3, and the four center holes of the four wheels 11 are aligned with four fourth through holes 306 of the second bracket 3. Then, four hinges 12 are installed in four groups of aligned through holes. In this way, a second bracket vehicle can be assembled from a second bracket 3 and four wheels 11.

[0050] Then, the eight gears 7 are arranged in pairs opposite to each other. Then, four clamping sections 201 of the four rotating shafts 2 are inserted into eight eighth through holes 702 of the eight gears 7. Then, sixteen hinges 12 are installed in sixteen second through holes 203 of the four rotating shafts 2. In this way, the four rotating shafts 2 and the eight gears 7 can be assembled.

[0051] Then, eight of the rolling bearings 10 are installed within the eight second grooves 505 of the four third brackets 5. Next, the four third brackets 5 are arranged in pairs facing each other. Then, the eight bearing sections 202 of the four rotating shafts 2 are inserted into the eight rolling bearings 10. In this way, the four third brackets 5, the eight rolling bearings 10, and the four rotating shafts 2 can be assembled;

[0052] Then, the four through grooves 507 of the four third brackets 5 are sleeved outside the four fourth bosses 303 of the second bracket 3, and the thirty-two fifth through holes 504 of the four third brackets 5 are aligned with the sixteen second screw holes 305 of the second bracket 3. Then, the thirty-two screws 4 are passed through the thirty-two fifth through holes 504 and screwed into the sixteen second screw holes 305. In this way, the four third brackets 5 and the second bracket 3 can be assembled by the thirty-two screws 4;

[0053] Then, the two rack plates 6 are respectively arranged outside the left and right end faces of the two first bosses 102 of the first bracket 1, and the eight seventh through holes 603 of the two rack plates 6 are aligned with the eight first screw holes 104 of the first bracket 1. Then, the eight screws 4 are passed through the eight seventh through holes 603 and screwed into the eight first screw holes 104. In this way, the two rack plates 6 and the first bracket 1 can be assembled by the eight screws 4;

[0054] Then, the four rotating shafts 2 are simultaneously rotated forward to mesh the eight gears 7 with the two rack plates 6. Then, the two support plates 8 are respectively inserted into the four first through holes 105 of the first bracket 1. Finally, the four eighth bosses 902 of the four fourth brackets 9 are inserted into the four ninth through holes 801 of the two support plates 8. In this way, the entire set of devices is assembled and can be put into use.

[0055] The setting principle of the rotation direction of the rotating shafts of the device for transporting rectangular steel pipes based on meshing and interpenetrating provided by the present utility model:

[0056] As Figure 3 and Figure 4 shown, since the four positioning sections 201 of the four rotating shafts 2 are inserted into the eight eighth through holes 702 of the eight gears 7, therefore, by rotating the four rotating shafts 2, the eight gears 7 can be driven to rotate, thereby driving the two rack plates 6 and the first bracket 1 to perform synchronous lifting movements; the two rotating shafts 2 located on the left side of the rack plate 6 are respectively designated as A and B, and the two rotating shafts 2 located on the right side of the rack plate 6 are respectively designated as C and D;

[0057] AsFigure 20 As shown, by rotating A and B counterclockwise simultaneously and rotating C and D clockwise simultaneously, the two rack plates 6 and the first bracket 1 can be driven to rise simultaneously. This rotation direction of the rotating shaft 2 is defined as the forward rotation; conversely, as Figure 21 shown, by rotating A and B clockwise simultaneously and rotating C and D counterclockwise simultaneously, the two rack plates 6 and the first bracket 1 can be driven to descend simultaneously. This rotation direction of the rotating shaft 2 is defined as the reverse rotation.

[0058] Usage method of the device for transporting rectangular steel pipes based on meshing and interpenetrating type provided by the present utility model:

[0059] Step 1: First, pull out the four fourth brackets 9 from the four ninth through holes 801 of the two support plates 8, then pull out the two support plates 8 from the four first through holes 105 of the first bracket 1, then move the second bracket cart horizontally so that the first bracket 1 is directly above the rectangular steel pipe 13, and then rotate the four rotating shafts 2 in the reverse direction simultaneously to lower the first bracket 1 and make the first through hole 105 lower than the rectangular steel pipe 13, as Figure 1 and Figure 2 shown;

[0060] Step 2: Then insert the two support plates 8 into the four first through holes 105 of the first bracket 1, then insert the four eighth bosses 902 of the four fourth brackets 9 into the four ninth through holes 801 of the two support plates 8, then rotate the four rotating shafts 2 in the forward direction simultaneously to raise the first bracket 1 and the rectangular steel pipe 13, and then move the second bracket cart horizontally to transport the rectangular steel pipe 13 to a suitable position, as Figures 4 to 6 shown.

[0061] Supplementary description: The device for transporting rectangular steel pipes based on meshing and interpenetrating type provided by the present utility model is designed with a symmetric structure. First, multiple specifications of the device of the present utility model should be designed and manufactured to match according to the outer diameter specification of the rectangular steel pipe, the installation height of the rectangular steel pipe, and the fixed-length of the rectangular steel pipe.

[0062] It can be seen from the embodiments that by using the device for transporting rectangular steel pipes based on meshing and interpenetrating type provided by the present utility model, the purpose of transporting horizontally arranged rectangular steel pipes can be achieved. The device of the present utility model has the characteristics of low manufacturing cost, simple operation, and good use effect.

[0063] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features thereof.

Claims

1. A device for transporting rectangular steel pipes based on meshing and interlacing, characterized in that: The device for transporting rectangular steel pipes based on meshing and interlacing comprises: a first bracket (1), a second bracket (3), four third brackets (5), four fourth brackets (9), four rotating shafts (2), forty screws (4), two rack plates (6), eight gears (7), two support plates (8), eight rolling bearings (10), four wheels (11) and twenty hinges (12), wherein: The first bracket (1) is composed of a first body (101), two first bosses (102) and four second bosses (103) connected together; the first body (101), the first boss (102) and the second boss (103) are all rectangular parallelepiped symmetrical structures; the two first bosses (102) are simultaneously located on the upper end surface of the first body (101), and the four second bosses (103) are simultaneously located on the lower end surface of the first body (101); the first boss (102) is symmetrically provided with four first screw holes (104), and the screws (4) are screwed into the first screw holes (104); the second boss (103) is provided with a first rectangular parallelepiped through hole (105), and the support plate (8) is penetrated into the first through hole (105); The second bracket (3) is composed of a second body (301), four third bosses (302) and four fourth bosses (303) connected together; the second body (301), the third bosses (302) and the fourth bosses (303) are all rectangular parallelepiped symmetrical structures; the four third bosses (302) are simultaneously located on the lower end surface of the second body (301); the four fourth bosses (303) are respectively located on the lower end surfaces of the four third bosses (302); a third rectangular through hole (304) is provided in the middle of the second body (301); The first bracket (1) and the rack plate (6) are inserted into the through hole (304); a first rectangular groove (307) is formed on the lower end surface of the fourth boss (303), and the wheel (11) is inserted into the first groove (307); a fourth cylindrical through hole (306) is formed on the front and rear sides of the first groove (307), and the hinge (12) is inserted into the fourth through hole (306); four second screw holes (305) are symmetrically formed on the fourth boss (303), and the screws (4) are screwed into the second screw holes (305); The third bracket (5) is composed of a fourth body (501), two sixth bosses (502) and a seventh boss (503) connected together; the fourth body (501), the sixth boss (502) and the seventh boss (503) are all rectangular parallelepiped symmetrical structures; the two sixth bosses (502) are simultaneously located on the left end surface of the fourth body (501), and the seventh boss (503) is located on the right end surface of the fourth body (501); a rectangular parallelepiped through groove (507) can be formed between the two sixth bosses (502), and the through groove (507) is penetrated by the seventh boss (503). The fourth boss (303) of the second bracket (3) is provided; the sixth boss (502) is symmetrically provided with four cylindrical fifth through holes (504), and the screw (4) is passed through the fifth through holes (504); the rear end surface of the seventh boss (503) is symmetrically provided with two cylindrical second grooves (505), and the rolling bearing (10) is passed through the second grooves (505); the axial position of the second groove (505) is provided with a cylindrical sixth through hole (506), and the bearing section (202) of the rotating shaft (2) is passed through the sixth through hole (506); The fourth bracket (9) is composed of a sixth body (901) and an eighth boss (902) connected together; the sixth body (901) and the eighth boss (902) are both rectangular parallelepiped symmetrical structures; the eighth boss (902) is located on the lower end surface of the sixth body (901); the eighth boss (902) is inserted into the ninth through hole (801) of the support plate (8) to ensure the positioning connection between the support plate (8) and the first bracket (1); The rack plate (6) is composed of a fifth body (601) and a plurality of first racks (602) connected together; the fifth body (601) is a rectangular parallelepiped symmetrical structure; the plurality of first racks (602) are evenly located on the left end surface of the fifth body (601); the fifth body (601) is symmetrically provided with four cylindrical seventh through holes (603); the screws (4) are inserted into the seventh through holes (603); The gear (7) is a cylindrical symmetrical structure, an eighth through hole (702) in the shape of a regular octagon is provided at the axis position of the gear (7), and a locking section (201) of the rotating shaft (2) is inserted into the eighth through hole (702); the gear (7) is evenly provided with a plurality of second racks (701) along the circumferential direction, which are used to mesh with the first rack (602) of the rack plate (6).

2. The device for transporting rectangular steel pipes based on meshing and interlacing according to claim 1 is characterized in that: The rotating shaft (2) is composed of bearing sections (202) located at both ends and a locking section (201) located in the middle, wherein the bearing section (202) is a cylindrical symmetrical structure, and is used to penetrate the rolling bearing (10); the locking section (201) is a regular octagonal symmetrical structure, and is used to penetrate the eighth through hole (702) of the gear (7); the locking section (201) is symmetrically provided with two groups of four cylindrical second through holes (203) in total, and the hinge (12) is penetrated in the second through holes (203).

3. The device for transporting rectangular steel pipes based on meshing and interlacing according to claim 1 is characterized in that: The screw (4) is composed of a coaxial third body (401) and a fifth boss (402), the third body (401) and the fifth boss (402) are both cylindrical symmetrical structures, and the fifth boss (402) is located on the right end surface of the third body (401); the end of the fifth boss (402) is provided with a thread for screwing into the first screw hole (104) of the first bracket (1) or the second screw hole (305) of the second bracket (3).

4. The device for transporting rectangular steel pipes based on meshing and interlacing according to claim 1 is characterized in that: The support plate (8) is a rectangular parallelepiped symmetrical structure, and the support plate (8) is symmetrically provided with two rectangular parallelepiped ninth through holes (801), and the eighth boss (902) of the fourth bracket (9) is penetrated in the ninth through hole (801).

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