Square steel surface rust removal device for building construction

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a square steel surface derusting device for building construction, which comprises a base and a frame, the frame is fixedly connected to the top surface of the base, a plurality of rotating rods are respectively and rotatably connected to the inner walls of the periphery of the frame, and sliding grooves communicated with an inner cavity of the frame are formed in the rotating rods. A threaded rod is slidably connected into the sliding groove, one end of the threaded rod extends into an inner cavity of the frame, and a grinding disc is fixedly connected to one end of the threaded rod. The multiple first rotating grooves are formed in the inner walls of the multiple sliding grooves correspondingly, and threaded sleeves in threaded connection with the threaded rods are rotationally connected into the first rotating grooves; and the driving assembly is located in the frame and used for driving the multiple rotating rods to rotate. The square steel surface derusting device solves the problem that when the square steel surface derusting device is used, only one face of square steel can be polished, and the peripheral surfaces of the square steel cannot be comprehensively polished at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, in particular to a square steel surface rust removal device used in building construction. Background Art

[0002] The square steel surface rust removal device for construction is specially designed for construction sites and is used to remove rust and oxide layers on the surface of square steel. The square steel surface rust removal device usually uses a mechanical rust removal method to grind the rust on the square steel surface. Commonly used square steel surface rust removal devices include polishing machines, which use high-speed rotating grinding discs to grind the steel surface to remove the rust layer.

[0003] When the conventional square steel surface rust removal device is used, only one side of the square steel can be polished, and the surrounding surfaces of the square steel cannot be fully polished at the same time. In view of this, we propose a square steel surface rust removal device for construction. Utility Model Content

[0004] The utility model aims to provide a square steel surface rust removal device for construction to solve the problems raised in the above background technology.

[0005] In view of this, the utility model provides a square steel surface rust removal device for construction, comprising:

[0006] A base and a frame, wherein the frame is fixedly connected to the top surface of the base, and a plurality of rotating rods are rotatably connected to the inner walls of the four sides of the frame, wherein a slide groove connected to the inner cavity of the frame is provided in the rotating rod, a threaded rod is slidably connected in the slide groove, and one end of the threaded rod extends to the inner cavity of the frame, and one end of the threaded rod is fixedly connected to a grinding disc;

[0007] A plurality of first rotating grooves, wherein the plurality of first rotating grooves are respectively provided on the inner walls of the plurality of sliding grooves, and a threaded sleeve rotatably connected to the thread of the threaded rod is provided in the first rotating groove;

[0008] A driving assembly is located in the frame and is used to drive the multiple rotating rods to rotate.

[0009] Based on the above structure, by setting the frame and rotating rod, it is ensured that multiple rotating rods can rotate on the inner walls of the frame respectively, and by setting the slide groove, threaded rod and grinding disc, it is ensured that the threaded rod can drive the grinding disc to move along the slide groove, and by setting the first rotating groove and threaded sleeve, it is ensured that the threaded sleeve can rotate in the first rotating groove. When the threaded sleeve rotates, the threaded rod will be driven to move the grinding disc by the action of the thread of the threaded sleeve, ensuring that the user can adjust the positions of multiple grinding discs according to the size of the square steel, and by setting the driving assembly, it is ensured that the user can drive multiple rotating rods to rotate through the driving assembly, so that the multiple rotating rods can drive the multiple grinding discs to rotate through the multiple threaded rods respectively, so that the multiple grinding discs can fully grind the square steel, and by setting the support seat, it is ensured that the two support seats can support the two ends of the square steel.

[0010] In the above technical solution, further, the driving component includes:

[0011] Two first gear grooves, the two first gear grooves are symmetrically arranged in the frame, two first bevel gears are rotatably connected in the two first gear grooves, one end of the two first bevel gears extends to the inner cavity of the frame and is respectively fixed to two of the rotating rods, and a second bevel gear is meshed with one side of the first bevel gear;

[0012] a fifth bevel gear, the fifth bevel gear being rotatably connected in one of the first gear grooves and meshing with one of the first bevel gears;

[0013] A first movable groove, wherein the first movable groove is provided in the frame and communicates with the two first gear grooves, wherein two first sprockets are rotatably connected in the first movable groove, and one end of the two first sprockets respectively extends into the two first gear grooves and is respectively fixed to the two second bevel gears, and a first chain is meshed between the two first sprockets;

[0014] Two second movable grooves, the two second movable grooves are symmetrically arranged in the frame, two third sprockets are rotatably connected in the two second movable grooves, and one end of the two third sprockets respectively passes through the inner walls of the two second movable grooves, extends to the inner cavity of the frame and is respectively fixed to the other two rotating rods;

[0015] Two second sprockets, the two second sprockets are rotatably connected in the two second movable grooves respectively, and a second chain is meshed between the second sprocket and the third sprocket;

[0016] A second gear groove, the second gear groove is opened in the frame and communicated with the two second movable grooves, two third bevel gears are rotatably connected in the second gear groove, and one end of the two third bevel gears respectively extends into the two second movable grooves and is respectively fixed to the two second sprockets, a fourth bevel gear is meshed between the two third bevel gears, and one end of the fourth bevel gear penetrates the inner wall of the second gear groove and extends into one of the first gear grooves and is fixed to the fifth bevel gear;

[0017] The motor is fixedly connected to the top surface of the frame, and the output shaft of the motor passes through the top surface of the frame and extends into one of the first gear grooves and is fixed to one of the first bevel gears.

[0018] In this technical solution, it is ensured that the overall device can simultaneously grind away the rust around the square steel.

[0019] In the above technical solution, further, one end of the two first bevel gears is rotatably connected to the inner cavity of the frame, and the second bevel gear is located in the first gear groove and rotatably connected to the first gear groove.

[0020] In the technical solution, it is ensured that one end of the two first bevel gears can rotate normally in the inner cavity of the frame, and it is ensured that the second bevel gear can rotate normally in the first gear groove.

[0021] In the above technical solution, further, one end of the first sprocket is rotatably connected to the first gear groove, and one end of the two third sprockets is rotatably connected to the inner cavity of the frame.

[0022] In the technical solution, it is ensured that one end of the first sprocket can rotate normally in the first gear groove, and it is ensured that one end of the two third sprockets can rotate normally in the inner cavity of the frame.

[0023] In the above technical solution, further, one end of the third bevel gear is rotatably connected to the second movable groove, and the fourth bevel gear is located in the second gear groove and rotatably connected to the second gear groove.

[0024] In the technical solution, it is ensured that one end of the third bevel gear can rotate normally in the second movable groove, and it is ensured that the fourth bevel gear can rotate normally in the second gear groove.

[0025] In the above technical solution, further, one end of the fourth bevel gear is rotationally connected to one of the first gear grooves, and the output shaft of the motor is rotationally connected to the frame.

[0026] In the technical solution, it is ensured that one end of the fourth bevel gear can rotate normally in one of the first gear grooves, and it is ensured that the output shaft of the motor can rotate normally in the frame.

[0027] In the above technical solution, further, the top end of the threaded rod is a rectangular structure.

[0028] In this technical solution, it is ensured that the rotating rod can drive the grinding disc to rotate through the threaded rod.

[0029] In the above technical solution, further, an anti-sliding block is fixedly connected to the circumferential side of the threaded sleeve.

[0030] In this technical solution, it is ensured that the user can save more effort when rotating the threaded sleeve.

[0031] The beneficial effects of the utility model are:

[0032] The square steel surface rust removal device for construction construction ensures that the multiple rotating rods can rotate on the four inner walls of the frame respectively by providing a frame and a rotating rod, ensures that the threaded rod can drive the grinding disc to move along the sliding groove by providing a sliding groove, ensures that the threaded sleeve can rotate in the first rotating groove by providing a first rotating groove and a threaded sleeve, and drives the grinding disc to move by the action of the threaded sleeve thread when the threaded sleeve rotates, ensures that the user can adjust the positions of the multiple grinding discs according to the size of the square steel, ensures that the user can drive the multiple rotating rods to rotate by the driving assembly, and allows the multiple rotating rods to drive the multiple grinding discs to rotate respectively through the multiple threaded rods, so that the multiple grinding discs can fully grind the square steel, and ensures that the two supporting seats can support the two ends of the square steel by providing a supporting seat, thereby solving the problem that the square steel surface rust removal device can only grind one side of the square steel when in use, and cannot fully grind the four surfaces of the square steel at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a schematic diagram of the internal structure of the rotating rod of the utility model;

[0035] Figure 3 It is one of the internal structure schematic diagrams of the framework of the utility model;

[0036] Figure 4 This is the second schematic diagram of the internal structure of the framework of the utility model;

[0037] Figure 5 This is the third schematic diagram of the internal structure of the framework of the utility model.

[0038] The symbols in the figure are:

[0039] 1. Base; 2. Frame; 3. Rotating rod; 4. Slide groove; 5. Threaded rod; 6. Grinding disc; 7. First rotating groove; 8. Threaded sleeve; 9. Support seat; 10. First gear groove; 11. First bevel gear; 12. Second bevel gear; 13. First movable groove; 14. First sprocket; 15. First chain; 16. Second movable groove; 17. Second sprocket; 18. Second chain; 19. Second gear groove; 20. Third bevel gear; 21. Fourth bevel gear; 22. Fifth bevel gear; 23. Motor; 24. Third sprocket. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0044] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0045] Embodiment 1:

[0046] See also Figure 1 - Figure 5 As shown, this embodiment provides a square steel surface rust removal device for construction, comprising:

[0047] A base 1 and a frame 2, wherein the frame 2 is fixedly connected to the top surface of the base 1, and a plurality of rotating rods 3 are rotatably connected to the inner walls of the four sides of the frame 2, wherein a slide groove 4 communicating with the inner cavity of the frame 2 is provided in the rotating rod 3, and a threaded rod 5 is slidably connected in the slide groove 4, and one end of the threaded rod 5 extends to the inner cavity of the frame 2, and one end of the threaded rod 5 is fixedly connected to a grinding disc 6;

[0048] A plurality of first rotating grooves 7, wherein the plurality of first rotating grooves 7 are respectively provided on the inner walls of the plurality of sliding grooves 4, and a threaded sleeve 8 threaded with the threaded rod 5 is rotatably connected in the first rotating groove 7;

[0049] The driving assembly is located in the frame 2 and is used to drive the multiple rotating rods 3 to rotate.

[0050] Embodiment 2:

[0051] This embodiment provides a square steel surface rust removal device for construction, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0052] Two first gear grooves 10, the two first gear grooves 10 are symmetrically opened in the frame 2, two first bevel gears 11 are rotatably connected in the two first gear grooves 10, and one end of the two first bevel gears 11 extends to the inner cavity of the frame 2 and is respectively fixed to two of the rotating rods 3, and one side of the first bevel gear 11 is meshed with a second bevel gear 12;

[0053] A fifth bevel gear 22, the fifth bevel gear 22 is rotatably connected in one of the first gear grooves 10 and meshes with one of the first bevel gears 11;

[0054] A first movable groove 13, which is provided in the frame 2 and communicates with the two first gear grooves 10, wherein two first sprocket wheels 14 are rotatably connected in the first movable groove 13, and one end of the two first sprocket wheels 14 respectively extends into the two first gear grooves 10 and is respectively fixed to the two second bevel gears 12, and a first chain 15 is meshed between the two first sprocket wheels 14;

[0055] Two second movable grooves 16, the two second movable grooves 16 are symmetrically opened in the frame 2, and two third sprockets 24 are rotatably connected in the two second movable grooves 16, and one end of the two third sprockets 24 respectively penetrates the inner wall of the two second movable grooves 16 and extends to the inner cavity of the frame 2 and is respectively fixed to the other two rotating rods 3;

[0056] Two second sprockets 17, the two second sprockets 17 are rotatably connected in the two second movable grooves 16 respectively, and a second chain 18 is meshed between the second sprocket 17 and the third sprocket 24;

[0057] A second gear groove 19 is provided in the frame 2 and communicated with the two second movable grooves 16. Two third bevel gears 20 are rotatably connected in the second gear groove 19, and one end of the two third bevel gears 20 respectively extends into the two second movable grooves 16 and is respectively fixed to the two second sprocket wheels 17. A fourth bevel gear 21 is meshed between the two third bevel gears 20, and one end of the fourth bevel gear 21 passes through the inner wall of the second gear groove 19 and extends into one of the first gear grooves 10 and is fixed to the fifth bevel gear 22;

[0058] The motor 23 is fixedly connected to the top surface of the frame 2 , and the output shaft of the motor 23 passes through the top surface of the frame 2 and extends into one of the first gear grooves 10 and is fixed to one of the first bevel gears 11 .

[0059] Among them, the user starts the motor 23, and the output shaft of the motor 23 drives one of the first bevel gears 11 to rotate in one of the first gear grooves 10. When one of the first bevel gears 11 rotates, one of the first bevel gears 11 will drive one of the second bevel gears 12 to rotate, and one of the second bevel gears 12 drives one of the first sprockets 14 to rotate in the first movable groove 13. When one of the first sprockets 14 rotates, one of the first sprockets 14 will drive another first sprocket 14 to rotate through the first chain 15, and the other first sprocket 14 drives another second bevel gear 12 to rotate in another first gear groove 10. When the other second bevel gear 12 rotates, the other second bevel gear 12 will drive another first bevel gear 11 to rotate. Among them, when one of the first bevel gears 11 rotates, one of the first bevel gears 11 will also drive the fifth bevel gear 22 to rotate in one of the first gear grooves 10. When the fifth bevel gear 22 rotates, the fifth bevel gear 22 will drive the fourth bevel gear 2 1 rotates in the second gear groove 19, when the fourth bevel gear 21 rotates, the fourth bevel gear 21 will drive the two third bevel gears 20 to rotate in the second gear groove 19, so that the two third bevel gears 20 respectively drive the two second sprockets 17 to rotate in the two second movable grooves 16, when the two second sprockets 17 rotate, the two second sprockets 17 will respectively drive the two third sprockets 24 to rotate through the two second chains 18, when the two first bevel gears 11 and the two third sprockets 24 rotate, the two first bevel gears 11 and the two third sprockets 24 will respectively drive the multiple rotating rods 3 to rotate in the inner cavity around the base 1 of the frame 2, so that the multiple rotating rods 3 respectively drive the multiple grinding discs 6 to rotate through the multiple threaded rods 5, then the user places the square steel on one of the support seats 9, and then pushes the square steel, so that one end of the square steel passes through between the multiple grinding discs 6 and moves to another support seat 9, when the square steel completely passes through the multiple grinding discs 6, the rust around the square steel will be polished clean, ensuring that the overall device can simultaneously polish the rust around the square steel.

[0060] Embodiment 3:

[0061] The present embodiment provides a square steel surface rust removal device for construction. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: one end of the two first bevel gears 11 is rotatably connected to the inner cavity of the frame 2, and the second bevel gear 12 is located in the first gear groove 10 and is rotatably connected to the first gear groove 10.

[0062] Here, it is ensured that one end of the two first bevel gears 11 can rotate normally in the inner cavity of the frame 2 , and it is ensured that the second bevel gear 12 can rotate normally in the first gear groove 10 .

[0063] Embodiment 4:

[0064] The present embodiment provides a square steel surface rust removal device for construction. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: one end of the first sprocket 14 is rotatably connected to the first gear groove 10, and one end of the two third sprockets 24 is rotatably connected to the inner cavity of the frame 2.

[0065] Here, it is ensured that one end of the first sprocket 14 can rotate normally in the first gear slot 10 , and it is ensured that one end of the two third sprockets 24 can rotate normally in the inner cavity of the frame 2 .

[0066] Embodiment 5:

[0067] The present embodiment provides a square steel surface rust removal device for construction. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: one end of the third bevel gear 20 is rotatably connected to the second movable groove 16, and the fourth bevel gear 21 is located in the second gear groove 19 and rotatably connected to the second gear groove 19.

[0068] Here, it is ensured that one end of the third bevel gear 20 can rotate normally in the second movable groove 16 , and it is ensured that the fourth bevel gear 21 can rotate normally in the second gear groove 19 .

[0069] Embodiment 6:

[0070] The present embodiment provides a square steel surface rust removal device for construction. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: one end of the fourth bevel gear 21 is rotatably connected to one of the first gear grooves 10, and the output shaft of the motor 23 is rotatably connected to the frame 2.

[0071] Here, it is ensured that one end of the fourth bevel gear 21 can rotate normally in one of the first gear slots 10 , and it is ensured that the output shaft of the motor 23 can rotate normally in the frame 2 .

[0072] Embodiment 7:

[0073] This embodiment provides a square steel surface rust removal device for construction. In addition to the technical solutions of the above embodiments, it also has the following technical features: the top end of the threaded rod 5 is a rectangular structure.

[0074] Here, it is ensured that the rotating rod 3 can drive the grinding disc 6 to rotate through the threaded rod 5 .

[0075] Embodiment 8:

[0076] This embodiment provides a square steel surface rust removal device for construction. In addition to the technical solutions of the above embodiments, it also has the following technical features: an anti-sliding block is fixedly connected to the circumferential side of the threaded sleeve 8.

[0077] This ensures that the user can save more effort when rotating the threaded sleeve 8.

[0078] When in use, the user rotates the multiple threaded sleeves 8 by hand, so that the multiple threaded sleeves 8 rotate in the multiple first rotating grooves 7 respectively. When the multiple threaded sleeves 8 rotate, the multiple threaded rods 5 are acted upon by the threads of the multiple threaded sleeves 8 to move along the multiple sliding grooves 4 respectively, so that the multiple threaded rods 5 drive the multiple grinding discs 6 to move respectively. When the multiple grinding discs 6 move to the appropriate positions, the user stops rotating the multiple threaded sleeves 8, ensuring that the user can adjust the positions of the multiple grinding discs 6 according to the size of the square steel, so that the multiple grinding discs 6 can contact the four sides of the square steel at the same time. Then the user starts the motor 23, so that the output shaft of the motor 23 drives one of the first bevel gears 11 to move at its When one of the first bevel gears 11 rotates, one of the first bevel gears 11 will drive one of the second bevel gears 12 to rotate, so that one of the second bevel gears 12 drives one of the first sprockets 14 to rotate in the first movable groove 13. When one of the first sprockets 14 rotates, one of the first sprockets 14 will drive another first sprocket 14 to rotate through the first chain 15, so that the other first sprocket 14 drives another second bevel gear 12 to rotate in another first gear groove 10. When the other second bevel gear 12 rotates, the other second bevel gear 12 drives another first bevel gear 14 to rotate. The wheel 11 rotates, wherein when one of the first bevel gears 11 rotates, one of the first bevel gears 11 will also drive the fifth bevel gear 22 to rotate in one of the first gear slots 10, and when the fifth bevel gear 22 rotates, the fifth bevel gear 22 will drive the fourth bevel gear 21 to rotate in the second gear slot 19, and when the fourth bevel gear 21 rotates, the fourth bevel gear 21 will drive the two third bevel gears 20 to rotate in the second gear slot 19, so that the two third bevel gears 20 respectively drive the two second sprocket wheels 17 to rotate in the two second movable slots 16, and when the two second sprocket wheels 17 rotate, the two second sprocket wheels 17 will respectively drive the two second chains 18 to rotate. The two third sprockets 24 are driven to rotate. When the two first bevel gears 11 and the two third sprockets 24 rotate, the two first bevel gears 11 and the two third sprockets 24 will respectively drive the multiple rotating rods 3 to rotate in the inner cavity around the base 1 of the frame 2, so that the multiple rotating rods 3 respectively drive the multiple grinding discs 6 to rotate through the multiple threaded rods 5. Then the user places the square steel on one of the support seats 9, and then pushes the square steel to allow one end of the square steel to pass through between the multiple grinding discs 6 and move to another support seat 9. When the square steel completely passes through the multiple grinding discs 6, the rust around the square steel will be polished clean, ensuring that the overall device can polish the rust around the square steel clean at the same time.

[0079] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A device for removing rust from the surface of square steel for construction, characterized in that: include: A base (1) and a frame (2), wherein the frame (2) is fixedly connected to the top surface of the base (1), and a plurality of rotating rods (3) are rotatably connected to the inner walls of the frame (2) on all four sides, and a slide groove (4) connected to the inner cavity of the frame (2) is provided in the rotating rod (3), and a threaded rod (5) is slidably connected in the slide groove (4), and one end of the threaded rod (5) extends to the inner cavity of the frame (2), and one end of the threaded rod (5) is fixedly connected to a grinding disc (6); A plurality of first rotating grooves (7), wherein the plurality of first rotating grooves (7) are respectively arranged on the inner walls of the plurality of sliding grooves (4), and a threaded sleeve (8) which is threaded with the threaded rod (5) is rotatably connected in the first rotating groove (7); A driving assembly is located in the frame (2) and is used to drive the plurality of rotating rods (3) to rotate.

2. A device for removing rust from the surface of square steel for construction according to claim 1, characterized in that: The drive assembly comprises: Two first gear grooves (10), the two first gear grooves (10) are symmetrically arranged in the frame (2), two first bevel gears (11) are rotatably connected in the two first gear grooves (10), one end of the two first bevel gears (11) extends to the inner cavity of the frame (2) and is respectively fixed to two rotating rods (3), and a second bevel gear (12) is meshed on one side of the first bevel gear (11); a fifth bevel gear (22), the fifth bevel gear (22) being rotatably connected in one of the first gear grooves (10) and meshing with one of the first bevel gears (11); A first movable groove (13), the first movable groove (13) is provided in the frame (2) and is connected to the two first gear grooves (10), two first sprocket wheels (14) are rotatably connected in the first movable groove (13), one end of the two first sprocket wheels (14) respectively extends into the two first gear grooves (10) and is respectively fixed to the two second bevel gears (12), and a first chain (15) is meshed between the two first sprocket wheels (14); Two second movable grooves (16), the two second movable grooves (16) are symmetrically arranged in the frame (2), two third sprocket wheels (24) are rotatably connected in the two second movable grooves (16), and one end of the two third sprocket wheels (24) respectively penetrates the inner wall of the two second movable grooves (16) and extends to the inner cavity of the frame (2) and is respectively fixed to the other two rotating rods (3); Two second sprockets (17), the two second sprockets (17) are rotatably connected in the two second movable grooves (16) respectively, and a second chain (18) is meshed between the second sprockets (17) and the third sprocket (24); A second gear groove (19), wherein the second gear groove (19) is provided in the frame (2) and is connected to the two second movable grooves (16); two third bevel gears (20) are rotatably connected in the second gear groove (19); one end of the two third bevel gears (20) respectively extends into the two second movable grooves (16) and is respectively fixed to the two second sprocket wheels (17); a fourth bevel gear (21) is meshed between the two third bevel gears (20); one end of the fourth bevel gear (21) penetrates the inner wall of the second gear groove (19) and extends into one of the first gear grooves (10) and is fixed to the fifth bevel gear (22); A motor (23) is fixedly connected to the top surface of the frame (2), and an output shaft of the motor (23) passes through the top surface of the frame (2) and extends into one of the first gear grooves (10) and is fixed to one of the first bevel gears (11).

3. A device for removing rust from the surface of square steel for construction according to claim 2, characterized in that: One end of the two first bevel gears (11) is rotatably connected to the inner cavity of the frame (2), and the second bevel gear (12) is located in the first gear groove (10) and is rotatably connected to the first gear groove (10).

4. A device for removing rust from the surface of square steel for construction according to claim 2, characterized in that: One end of the first sprocket (14) is rotatably connected to the first gear groove (10), and one end of the two third sprockets (24) is rotatably connected to the inner cavity of the frame (2).

5. The device for removing rust from the surface of square steel for construction according to claim 2, characterized in that: One end of the third bevel gear (20) is rotatably connected to the second movable groove (16), and the fourth bevel gear (21) is located in the second gear groove (19) and rotatably connected to the second gear groove (19).

6. A device for removing rust from the surface of square steel for construction according to claim 2, characterized in that: One end of the fourth bevel gear (21) is rotationally connected to one of the first gear grooves (10), and the output shaft of the motor (23) is rotationally connected to the frame (2).

7. The device for removing rust from the surface of square steel for construction according to claim 1, characterized in that: The top end of the threaded rod (5) is in a rectangular structure.

8. The device for removing rust from the surface of square steel used in construction according to claim 1, characterized in that: An anti-sliding block is fixedly connected to the circumferential side of the threaded sleeve (8).

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