Device for spraying water to outer surface of rectangular steel pipe based on swing mode

Abstract

The utility model discloses a device for spraying water to the outer surface of a rectangular steel pipe based on a swing mode, and belongs to the technical field of steel pipe water spraying cooling. The device for spraying water to the outer surface of the rectangular steel pipe based on the swing type comprises a first support, eight second supports, four third supports, four fourth supports, two fifth supports, four sixth supports, sixty-four screws, four first connecting rods, eight second connecting rods, four wheels and twenty-eight hinges. The device can achieve the purpose of spraying water to the outer surface of the rectangular steel pipe moving horizontally, 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 steel pipe water spray cooling, and in particular relates to a device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion. Background Art

[0002] At present, enterprises usually adopt the method of hot rolling perforation + continuous pipe rolling to produce steel pipes; compared with profiles of other sections, steel pipes have relatively high resistance to bending and torsion; compared with circular steel pipes, rectangular steel pipes have relatively high force-bearing area and stable structural performance. Therefore, rectangular steel pipes are widely used in the fields of mechanical manufacturing and structural engineering. In order to improve the hardness and wear resistance of the outer surface of rectangular steel pipes, it is usually necessary to spray water on the outer surface of rectangular steel pipes to reduce component segregation, uniform structure and refine grains; there are relatively more devices for spraying water on the outer surface of circular steel pipes, but there is no report of devices for spraying water on the outer surface of rectangular steel pipes in the prior art.

[0003] For example: Patent document CN200620081755.X discloses a water spray quenching device for the outer surface of a red-hot steel pipe, which includes a main water pipe, a main valve, a cooling water pipe, a water collecting cylinder, a connecting rod, a base, a regulating valve, a spring, a quenching stand and a supporting wheel. Although the patented device can reuse the refluxed cooling water, the patented device is only suitable for water spray cooling of circular steel pipes, but not for water spray cooling of rectangular steel pipes. Patent document CN201910723610.7 discloses a water spray cooling device for seamless steel pipes, which includes a fixing plate, a connecting shaft, a cooler bracket, a cold water storage tank, a water pump, a connecting seat, a support frame, a waterproof cover and a filter. The working efficiency of the patented device is relatively high, and it can spray water to cool multiple steel pipes, but the patented device is only suitable for water spray cooling of circular steel pipes, but not for water spray cooling of rectangular steel pipes. Patent document CN202121238403.1 discloses a water spray cooling device for steel pipe production with environmental protection function. The patented device includes a device body, a water storage tank, a water inlet pipe, a water pump, a water outlet pipe, a four-way water pipe, a mounting plate and a waste water tank. Although the patented device can reuse the recycled water, the patented device is only suitable for water spray cooling of circular steel pipes, but not for water spray cooling of rectangular steel pipes. Utility Model Content

[0004] In order to overcome one or more problems existing in the prior art, the utility model provides a device for spraying water on the outer surface of a rectangular steel pipe based on a swinging manner. The device of the utility model is designed based on a symmetrical structure. The use of screws can realize both the connection between the second bracket and the third bracket and the connection between the second bracket and the fourth bracket; the use of the first connecting rod can realize the relative setting of the third bracket, and the use of the second connecting rod can realize the relative setting of the fourth bracket; the combined use of the first bracket, the fifth bracket and the hinge can realize the upright swing of the first connecting rod, and then realize the tilting movement of the third bracket and the second bracket; the combined use of the first bracket, the sixth bracket and the hinge can realize the horizontal swing of the second connecting rod, and then realize the tilting movement of the fourth bracket and the second bracket; the use of the second bracket can realize spraying water on the outer surface of the rectangular steel pipe. Therefore, the use effect of the device of the utility model is relatively good.

[0005] The technical solution adopted by the utility model to solve its technical problem is as follows.

[0006] The utility model provides a device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method, comprising: a first bracket, eight second brackets, four third brackets, four fourth brackets, two fifth brackets, four sixth brackets, sixty-four screws, four first connecting rods, eight second connecting rods, four wheels and twenty-eight hinges;

[0007] The first bracket is composed of a first body, four first bosses, sixteen second bosses, eight third bosses and four fourth bosses. The first body, the first boss, the second boss, the third boss and the fourth boss are all rectangular parallelepiped symmetrical structures. The four first bosses are simultaneously located on the upper end surface of the first body, the sixteen second bosses are respectively located on the left end surface or the right end surface of the four first bosses, the eight third bosses are simultaneously located on the upper end surface of the first body, and the four fourth bosses are simultaneously located on the lower end surface of the first body; the sixteen second bosses are divided into eight groups, and a rectangular parallelepiped-shaped third boss can be formed between the two second bosses in each group. a through slot, the second connecting rod is penetrated in the first through slot; the second boss is provided with a first cylindrical through hole, the hinge is penetrated in the first through hole; the eight third bosses are divided into four groups, and a second rectangular through slot can be formed between the two third bosses in each group, the first connecting rod is penetrated in the second through slot; the third boss is provided with a second cylindrical through hole, the hinge is penetrated in the second through hole; the lower end surface of the fourth boss is provided with a rectangular groove, the wheel is penetrated in the groove; the left and right sides of the groove are respectively provided with a third cylindrical through hole, the hinge is penetrated in the third through hole;

[0008] The second bracket is composed of a second body, four fifth bosses and two sixth bosses connected together. The second body and the fifth boss are both rectangular parallelepiped symmetrical structures. The four fifth bosses are respectively located on the left end face and the right end face of the second body, and the two sixth bosses are simultaneously located on the upper end face of the second body; a rectangular parallelepiped cavity is provided inside the second body, and the cavity is used to hold water; two rows of cylindrical fourth through holes are evenly provided on the lower end face of the second body, which are used as water outlet holes; the fifth boss is symmetrically provided with two screw holes, and the screws are screwed into the screw holes; the sixth boss is a cylindrical symmetrical structure, and a cylindrical fifth through hole is provided at the axis position of the sixth boss, which is used as a water inlet hole, and the fifth through hole also runs through the second body;

[0009] The third bracket is composed of two fourth bodies, two eighth bosses and two ninth bosses connected together. The fourth body, the eighth boss and the ninth boss are all rectangular parallelepiped symmetrical structures. The two fourth bodies are arranged opposite to each other, the two eighth bosses are respectively located outside the two fourth bodies, and the two ninth bosses are simultaneously located between the two fourth bodies; a third rectangular through groove can be formed between the two ninth bosses, and the second bracket is penetrated in the third through groove; the ninth boss is symmetrically provided with four cylindrical sixth through holes, and the screws are penetrated in the sixth through holes;

[0010] The fourth bracket is composed of two fifth bodies, two tenth bosses and two eleventh bosses connected together. The fifth body, the tenth boss and the eleventh boss are all rectangular parallelepiped symmetrical structures. The two fifth bodies are arranged opposite to each other, the two tenth bosses are respectively located outside the two fifth bodies, and the two eleventh bosses are simultaneously located between the two fifth bodies; a fourth rectangular through groove can be formed between the two eleventh bosses, and the second bracket is penetrated in the fourth through groove; the eleventh boss is symmetrically provided with four cylindrical ninth through holes, and the screw is penetrated in the ninth through hole;

[0011] The fifth bracket is composed of a sixth body and four twelfth bosses connected together, the sixth body and the twelfth boss are both rectangular parallelepiped symmetrical structures, and the four twelfth bosses are simultaneously located on the lower end surface of the sixth body; the four twelfth bosses are divided into two groups, and a fifth rectangular through groove can be formed between the two twelfth bosses in each group, and the first connecting rod is penetrated in the fifth through groove; the twelfth boss is provided with a tenth cylindrical through hole, and the hinge is penetrated in the tenth through hole;

[0012] The sixth bracket is composed of a seventh body and four thirteenth bosses connected together, the seventh body and the thirteenth bosses are both rectangular parallelepiped symmetrical structures, and the four thirteenth bosses are simultaneously located on the left end surface of the seventh body; the four thirteenth bosses are divided into two groups, and a sixth rectangular through groove can be formed between the two thirteenth bosses in each group, and the second connecting rod is penetrated in the sixth through groove; the thirteenth boss is provided with an eleventh cylindrical through hole, and the hinge is penetrated in the eleventh through hole;

[0013] The first connecting rod is a rectangular parallelepiped symmetrical structure, and a cylindrical seventh through hole is respectively formed at both ends of the first connecting rod, and the hinge is penetrated in the seventh through hole; two rectangular parallelepiped eighth through holes are symmetrically formed in the middle part of the first connecting rod, and the eighth boss of the third bracket is penetrated in the eighth through hole;

[0014] The second connecting rod is a symmetrical rectangular structure, with a cylindrical twelfth through hole respectively provided at both ends of the second connecting rod, and the hinge is penetrated through the twelfth through hole; a rectangular thirteenth through hole is provided in the middle part of the second connecting rod, and the tenth boss of the fourth bracket is penetrated through the thirteenth through hole.

[0015] In some embodiments, the screw is composed of a coaxial third body and a seventh boss, the third body and the seventh boss are both cylindrical symmetrical structures, and the seventh boss is located on the rear end face of the third body; the end of the seventh boss is provided with a thread for screwing into the screw hole of the second bracket.

[0016] In some embodiments, the wheels and the hinges are standard parts.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1) The device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion provided by the utility model comprises a first bracket, eight second brackets, four third brackets, four fourth brackets, two fifth brackets, four sixth brackets, sixty-four screws, four first connecting rods, eight second connecting rods, four wheels and twenty-eight hinges. Since the material is common and easy to process and shape, the manufacturing cost of the device of the utility model is relatively low.

[0019] 2) When the utility model is used, the four third brackets and the four fourth brackets are placed opposite to the ports of the horizontally arranged rectangular steel pipe, and water is injected into the sixteen fifth through holes of the eight second brackets at the same time. The rectangular steel pipe is moved backward at a uniform speed in the horizontal direction so that the rectangular steel pipe is inserted between the four third brackets and the four fourth brackets. With point E and point F as the base axis, the eight second connecting rods are swung at the same time to twist the four second parallelogram frames to control the spray direction of water on the left and right sides of the rectangular steel pipe; with point A and point B as the base axis, the four first connecting rods are swung at the same time to twist the two first parallelogram frames to control the spray direction of water on the upper and lower sides of the rectangular steel pipe. Therefore, the operation of the device of the utility model is relatively simple.

[0020] 3) The utility model is designed based on a symmetrical structure. The use of screws can realize the connection between the second bracket and the third bracket, and also realize the connection between the second bracket and the fourth bracket; the use of the first connecting rod can realize the relative setting of the third bracket, and the use of the second connecting rod can realize the relative setting of the fourth bracket; the combined use of the first bracket, the fifth bracket and the hinge can realize the upright swing of the first connecting rod, and then realize the tilting movement of the third bracket and the second bracket; the combined use of the first bracket, the sixth bracket and the hinge can realize the horizontal swing of the second connecting rod, and then realize the tilting movement of the fourth bracket and the second bracket; the use of the second bracket can realize the spraying of water on the outer surface of the rectangular steel pipe. Therefore, the use effect of the device of the utility model is relatively good.

[0021] The device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion provided by the utility model can achieve the purpose of spraying water on the outer surface of a horizontally moving rectangular steel pipe. The device of the utility model has the characteristics of low manufacturing cost, simple operation and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method according to the utility model;

[0023] Figure 2 It is a left-side structural schematic diagram of a device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method according to the utility model;

[0024] Figure 3 It is a schematic diagram of the top view of the structure of the device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method of the utility model;

[0025] Figure 4 This is a schematic diagram of the main structure of the first bracket and the wheel after being assembled in the utility model;

[0026] Figure 5 It is a left-side structural schematic diagram of the first bracket and the wheel of the utility model after being assembled;

[0027] Figure 6 It is a schematic diagram of the top view of the structure after the first bracket and the wheel of the utility model are assembled;

[0028] Figure 7 It is a bottom view structural schematic diagram of the first bracket and the wheel of the utility model after being assembled;

[0029] Figure 8 This is a schematic diagram of the main structure of the second bracket of the utility model;

[0030] Fig. 9 It is a schematic cross-sectional structural diagram of the second bracket of the utility model along the MM plane;

[0031] Fig.10 It is a schematic diagram of the top view of the second bracket of the utility model;

[0032] Fig.11 It is a bottom view structural schematic diagram of the second bracket of the utility model;

[0033] Fig.12 It is a left-side structural schematic diagram of the screw of the utility model;

[0034] Fig.13 This is a schematic diagram of the main structure of the third bracket of the utility model;

[0035] Fig.14 It is a schematic diagram of the top view of the structure of the third bracket of the utility model;

[0036] Fig.15 It is a left-side structural schematic diagram of the first connecting rod of the utility model;

[0037] Fig.16 This is a schematic diagram of the main structure of the fourth bracket of the utility model;

[0038] Fig.17 It is a left-side structural schematic diagram of the fourth bracket of the utility model;

[0039] Fig.18 This is a schematic diagram of the main structure of the fifth bracket of the utility model;

[0040] Fig.19 It is a left-side structural schematic diagram of the fifth bracket of the utility model;

[0041] Fig. 20 This is a schematic diagram of the main structure of the sixth bracket of the utility model;

[0042] Fig.21 It is a schematic diagram of the top view of the sixth bracket of the utility model;

[0043] Fig. 22It is a schematic diagram of the top view of the second connecting rod of the utility model;

[0044] Fig.23 It is a structural schematic diagram of the first parallelogram frame of the utility model;

[0045] Fig.24 It is a structural schematic diagram of the second parallelogram frame of the utility model.

[0046] Explanation of the reference numerals: 1-first bracket; 101-first body; 102-first boss; 103-second boss; 104-third boss; 105-fourth boss; 106-first through groove; 107-first through hole; 108-second through groove; 109-second through hole; 110-groove; 111-third through hole; 2-second bracket; 201-second body; 202-fifth boss; 203-sixth boss; 204-cavity; 205-fourth through hole; 206-screw hole; 207-fifth through hole; 3-screw; 301-third body; 302-seventh boss; 4-third bracket; 401-fourth body; 402-eighth boss; 403-ninth boss Platform; 404-third through slot; 405-sixth through hole; 5-first connecting rod; 501-seventh through hole; 502-eighth through hole; 6-fourth bracket; 601-fifth body; 602-tenth boss; 603-eleventh boss; 604-fourth through slot; 605-ninth through hole; 7-fifth bracket; 701-sixth body; 702-twelfth boss; 703-fifth through slot; 704-tenth through hole; 8-sixth bracket; 801-seventh body; 802-thirteenth boss; 803-sixth through slot; 804-eleventh through hole; 9-second connecting rod; 901-twelfth through hole; 902-thirteenth through hole; 10-wheel; 11-hinge; 12-rectangular steel pipe. DETAILED DESCRIPTION

[0047] The content of the utility model is described in detail below through examples and drawings. The examples are only used to understand the utility model, but are not intended to limit the content of the utility model.

[0048] Combination Figures 1 to 3As shown, the utility model provides a device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method, which includes a first bracket 1, eight second brackets 2, four third brackets 4, four fourth brackets 6, two fifth brackets 7, four sixth brackets 8, sixty-four screws 3, four first connecting rods 5, eight second connecting rods 9, four wheels 10 and twenty-eight hinges 11; wherein, four wheels 10 are inserted into the four grooves 110 of the first bracket 1 and are hinged by the four hinges 11; eight ends of eight second connecting rods 9 are inserted into the eight first through grooves 106 of the first bracket 1 and are hinged by the eight hinges 11; the other eight ends of the eight second connecting rods 9 are inserted into the eight sixth through grooves 803 of the four sixth brackets 8 and are hinged by the eight hinges 11; the .... The eight tenth bosses 602 of the four fourth brackets 6 are penetrated in the thirteenth through holes 902, and the four second brackets 2 are penetrated in the four fourth through grooves 604 of the four fourth brackets 6, and are connected by the thirty-two screws 3; the four ends of the four first connecting rods 5 are penetrated in the four second through grooves 108 of the first bracket 1, and are hinged by the four hinges 11; the other four ends of the four first connecting rods 5 are penetrated in the four fifth through grooves 703 of the two fifth brackets 7, and are hinged by the four hinges 11; the eight eighth bosses 402 of the four third brackets 4 are penetrated in the eight eighth through holes 502 of the four first connecting rods 5, and the other four second brackets 2 are penetrated in the four third through grooves 404 of the four third brackets 4, and are connected by the thirty-two screws 3.

[0049] The assembly process of the device provided by the utility model for spraying water on the outer surface of a rectangular steel pipe based on a swinging method is as follows:

[0050] Combination Figures 1 to 22 As shown, firstly, four wheels 10 are inserted into the four grooves 110 of the first bracket 1, and the four axial holes of the four wheels 10 are aligned with the four third through holes 111 of the first bracket 1, and then a hinge 11 is installed in each of the four groups of aligned through holes, so that the first bracket 1 and the four wheels 10 can be assembled into a first bracket vehicle;

[0051] Then, the four second brackets 2 are respectively inserted into the four fourth through slots 604 of the four fourth brackets 6, and the thirty-two screw holes 206 of the four second brackets 2 are aligned with the thirty-two ninth through holes 605 of the four fourth brackets 6, and then the thirty-two screws 3 are passed through the thirty-two ninth through holes 605 and screwed into the thirty-two screw holes 206, so that the four second brackets 2 and the four fourth brackets 6 can be assembled;

[0052] Then, the eight second connecting rods 9 are arranged opposite to each other in pairs, and then the eight tenth bosses 602 of the four fourth brackets 6 are inserted into the eight thirteenth through holes 902 of the eight second connecting rods 9, so that the four fourth brackets 6 and the eight second connecting rods 9 can be assembled;

[0053] Then, one end of the eight second connecting rods 9 is inserted into the eight first through slots 106 of the first bracket 1, and the eight twelfth through holes 901 of the eight second connecting rods 9 are aligned with the sixteen first through holes 107 of the first bracket 1, and then one hinge 11 is installed in each of the eight groups of aligned through holes, so that one end of the eight second connecting rods 9 can be assembled with the first bracket 1;

[0054] Then, the other ends of the eight second connecting rods 9 are inserted into the eight sixth through slots 803 of the four sixth brackets 8, and the other eight twelfth through holes 901 of the eight second connecting rods 9 are aligned with the sixteen eleventh through holes 804 of the four sixth brackets 8, and then one hinge 11 is installed in each of the eight groups of aligned through holes, so that the other ends of the eight second connecting rods 9 and the four sixth brackets 8 can be assembled;

[0055] Then, the other four second brackets 2 are respectively inserted into the four third through slots 404 of the four third brackets 4, and the thirty-two screw holes 206 of the four second brackets 2 are aligned with the thirty-two sixth through holes 405 of the four third brackets 4, and then the thirty-two screws 3 are passed through the thirty-two sixth through holes 405 and screwed into the thirty-two screw holes 206, so that the other four second brackets 2 and the four third brackets 4 can be assembled;

[0056] Then, the four first connecting rods 5 are arranged opposite to each other in pairs, and then the eight eighth bosses 402 of the four third brackets 4 are inserted into the eight eighth through holes 502 of the four first connecting rods 5, so that the four third brackets 4 and the four first connecting rods 5 can be assembled;

[0057] Then, one end of the four first connecting rods 5 is inserted into the four second through slots 108 of the first bracket 1, and the four seventh through holes 501 of the four first connecting rods 5 are aligned with the eight second through holes 109 of the first bracket 1, and then one hinge 11 is installed in each of the four groups of aligned through holes, so that one end of the four first connecting rods 5 and the first bracket 1 can be assembled;

[0058] Then, the other ends of the four first connecting rods 5 are inserted into the four fifth through grooves 703 of the two fifth brackets 7, and the other four seventh through holes 501 of the four first connecting rods 5 and the eight tenth through holes 704 of the two fifth brackets 7 are aligned, and then one hinge 11 is installed in each of the four groups of aligned through holes. In this way, the whole device is assembled and can be put into use.

[0059] The working principle of the device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method provided by the utility model is as follows:

[0060] Combination Figure 2 and Fig.23 As shown, since the device of the utility model is designed with a symmetrical structure, for the convenience of description, the eight second through holes 109 of the first bracket 1 are respectively set as point A and point B, and the eight tenth through holes 704 of the two fifth brackets 7 are respectively set as point C and point D, and point A, point B, point C and point D are connected in sequence to form two first parallelogram frames ABCD: according to the instability of the parallelogram, with the line segment AB as the fixed side, the four first connecting rods 5 can be swung upright, and can drive the line segment CD to move back and forth in the vertical plane, thereby driving the four third brackets 4 and the four second brackets 2 to move tilted, thereby changing the spray direction of water on the upper and lower sides of the rectangular steel pipe 12;

[0061] Combination Figure 3 and Fig.24 As shown, since the device of the utility model is designed with a symmetrical structure, for the convenience of description, the sixteen first through holes 107 of the first bracket 1 are respectively set as points E and F, and the sixteen eleventh through holes 804 of the four sixth brackets 8 are respectively set as points G and H, and point E, point F, point G and point H are connected in sequence to form four second parallelogram frames EFGH: according to the instability of the parallelogram, with the line segment EF as the fixed side, the eight second connecting rods 9 can swing horizontally and can drive the line segment GH to move back and forth in the horizontal plane, thereby driving the four fourth brackets 6 and the four second brackets 2 to tilt and move, thereby changing the spray direction of water on the left and right sides of the rectangular steel pipe 12.

[0062] The utility model provides a method for using a device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method:

[0063] Combination Figures 1 to 3As shown, first, the device for spraying water on the outer surface of a rectangular steel pipe based on a swinging method provided by the utility model is set on a horizontal ground, and it is ensured that the four third brackets 4 and the four fourth brackets 6 are directly opposite to the port of the horizontally set rectangular steel pipe 12, and then water is injected into the sixteen fifth through holes 207 of the eight second brackets 2 at the same time, and then the rectangular steel pipe 12 is moved backward at a uniform speed in the horizontal direction so that the rectangular steel pipe 12 is passed between the four third brackets 4 and the four fourth brackets 6. In this process, with point E and point F as the base axis, the eight second connecting rods 9 are swung at the same time to twist the four second parallelogram frames EFGH to control the spray direction of water on the left and right sides of the rectangular steel pipe 12; with point A and point B as the base axis, the four first connecting rods 5 are swung at the same time to twist the two first parallelogram frames ABCD to control the spray direction of water on the upper and lower sides of the rectangular steel pipe 12.

[0064] Supplementary explanation: The device provided by the utility model for spraying water on the outer surface of a rectangular steel pipe based on a swinging manner is designed with a symmetrical structure. First, according to the outer diameter specifications of the rectangular steel pipe, the setting height of the rectangular steel pipe and the wall thickness specifications of the rectangular steel pipe, multiple specifications of the utility model device should be designed and manufactured to match them.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein.

Claims

1. A device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion, characterized in that: The device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion comprises: a first bracket (1), eight second brackets (2), four third brackets (4), four fourth brackets (6), two fifth brackets (7), four sixth brackets (8), sixty-four screws (3), four first connecting rods (5), eight second connecting rods (9), four wheels (10) and twenty-eight hinges (11), wherein: The first bracket (1) is composed of a first body (101), four first bosses (102), sixteen second bosses (103), eight third bosses (104) and four fourth bosses (105), the first body (101), the first boss (102), the second boss (103), the third boss (104) and the fourth boss (105) are all rectangular parallelepiped symmetrical structures, the four first bosses (102) are simultaneously located on the upper end surface of the first body (101), the sixteen second bosses (103) are respectively located on the left end surface or the right end surface of the four first bosses (102), the eight third bosses (104) are simultaneously located on the upper end surface of the first body (101), and the four fourth bosses (105) are simultaneously located on the lower end surface of the first body (101); the sixteen second bosses (103) are divided into eight groups, and a rectangular parallelepiped first through groove (104) can be formed between the two second bosses (103) in each group. 06), the first through groove (106) is provided with the second connecting rod (9); the second boss (103) is provided with a first cylindrical through hole (107), the hinge (11) is provided in the first through hole (107); the eight third bosses (104) are divided into four groups, and a second rectangular through groove (108) can be formed between the two third bosses (104) in each group, the first connecting rod (5) is provided in the second through groove (108); The third boss (104) is provided with a cylindrical second through hole (109), and the hinge (11) is penetrated in the second through hole (109); the lower end surface of the fourth boss (105) is provided with a rectangular groove (110), and the wheel (10) is penetrated in the groove (110); the left and right sides of the groove (110) are respectively provided with a cylindrical third through hole (111), and the hinge (111) is penetrated in the third through hole (111); The second bracket (2) is composed of a second body (201), four fifth bosses (202) and two sixth bosses (203) connected together; the second body (201) and the fifth bosses (202) are both rectangular parallelepiped symmetrical structures; the four fifth bosses (202) are respectively located on the left end surface and the right end surface of the second body (201); the two sixth bosses (203) are simultaneously located on the upper end surface of the second body (201); a rectangular parallelepiped cavity (204) is provided inside the second body (201); the cavity (2 04) is used to hold water; the lower end surface of the second body (201) is evenly provided with two rows of cylindrical fourth through holes (205) used as water outlet holes; the fifth boss (202) is symmetrically provided with two screw holes (206), and the screws (3) are screwed into the screw holes (206); the sixth boss (203) is a cylindrical symmetrical structure, and the axis position of the sixth boss (203) is provided with a cylindrical fifth through hole (207) used as a water inlet hole, and the fifth through hole (207) also runs through the second body (201); The third bracket (4) is composed of two fourth bodies (401), two eighth bosses (402) and two ninth bosses (403) connected together. The fourth body (401), the eighth boss (402) and the ninth boss (403) are all rectangular parallelepiped symmetrical structures. The two fourth bodies (401) are arranged opposite to each other. The two eighth bosses (402) are respectively located outside the two fourth bodies (401), and the two ninth bosses (403) are simultaneously located between the two fourth bodies (401); a third rectangular through groove (404) can be formed between the two ninth bosses (403), and the second bracket (2) is penetrated in the third through groove (404); the ninth boss (403) is symmetrically provided with four cylindrical sixth through holes (405), and the screws (3) are penetrated in the sixth through holes (405); The fourth bracket (6) is composed of two fifth bodies (601), two tenth bosses (602) and two eleventh bosses (603) connected together; the fifth body (601), the tenth boss (602) and the eleventh boss (603) are all rectangular parallelepiped symmetrical structures; the two fifth bodies (601) are arranged opposite to each other; the two tenth bosses (602) are respectively located outside the two fifth bodies (601); the two eleventh bosses (603) are simultaneously located between the two fifth bodies (601); a fourth rectangular through groove (604) can be formed between the two eleventh bosses (603); the second bracket (2) is penetrated in the fourth through groove (604); the eleventh boss (603) is symmetrically provided with four cylindrical ninth through holes (605); the screw (3) is penetrated in the ninth through hole (605); The fifth bracket (7) is composed of a sixth body (701) and four twelfth bosses (702) connected together. The sixth body (701) and the twelfth boss (702) are both rectangular parallelepiped symmetrical structures. The four twelfth bosses (702) are simultaneously located on the lower end surface of the sixth body (701); the four twelfth bosses (702) are divided into two groups, and a rectangular fifth through groove (703) can be formed between the two twelfth bosses (702) in each group, and the first connecting rod (5) is penetrated in the fifth through groove (703); the twelfth boss (702) is provided with a cylindrical tenth through hole (704), and the hinge (11) is penetrated in the tenth through hole (704); The sixth bracket (8) is composed of a seventh body (801) and four thirteenth bosses (802) connected together. The seventh body (801) and the thirteenth bosses (802) are both rectangular parallelepiped symmetrical structures. The four thirteenth bosses (802) are simultaneously located on the left end surface of the seventh body (801); the four thirteenth bosses (802) are divided into two groups, and a sixth rectangular through groove (803) can be formed between the two thirteenth bosses (802) in each group, and the second connecting rod (9) is penetrated in the sixth through groove (803); the thirteenth boss (802) is provided with an eleventh cylindrical through hole (804), and the hinge (11) is penetrated in the eleventh through hole (804); The first connecting rod (5) is a rectangular parallelepiped symmetrical structure, and a cylindrical seventh through hole (501) is respectively formed at both ends of the first connecting rod (5), and the hinge (11) is penetrated in the seventh through hole (501); two rectangular parallelepiped eighth through holes (502) are symmetrically formed in the middle part of the first connecting rod (5), and the eighth boss (402) of the third bracket (4) is penetrated in the eighth through hole (502); The second connecting rod (9) is a rectangular parallelepiped symmetrical structure, and a cylindrical twelfth through hole (901) is respectively provided at both ends of the second connecting rod (9), and the hinge (11) is penetrated in the twelfth through hole (901); a rectangular thirteenth through hole (902) is provided in the middle portion of the second connecting rod (9), and the tenth boss (602) of the fourth bracket (6) is penetrated in the thirteenth through hole (902).

2. The device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion according to claim 1 is characterized in that: The screw (3) is composed of a coaxial third body (301) and a seventh boss (302), the third body (301) and the seventh boss (302) are both cylindrical symmetrical structures, and the seventh boss (302) is located on the rear end surface of the third body (301); the end of the seventh boss (302) is provided with a thread for screwing into the screw hole (206) of the second bracket (2).

3. The device for spraying water on the outer surface of a rectangular steel pipe based on a swinging motion according to claim 1 or 2, characterized in that: The wheel (10) and the hinge (11) are both standard parts.

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