Seamless galvanized pipe for agricultural greenhouse

Abstract

The seamless galvanized pipe for the agricultural greenhouse comprises a galvanized steel pipe body and limiting lantern rings, the galvanized steel pipe body comprises a pipe body, an outer oxidation protection layer is arranged on the outer surface of the pipe body, an outer galvanized layer is arranged on the outer surface of the outer oxidation protection layer, and a glue layer is arranged on the outer surface of the outer galvanized layer. A self-lubricating material layer is arranged on the outer surface of the rubber layer, an inner oxidation protection layer is arranged on the inner surface of the pipe body, and an inner zinc coating is arranged on the inner surface of the inner oxidation protection layer. The steel pipe achieves the functions that punching, welding and bending are not needed, clamping positions are arranged, the structure of the steel pipe is kept complete, friction force is reduced, and disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a seamless galvanized pipe for agricultural greenhouses. Background Art

[0002] Seamless steel pipe is made of a whole round steel with holes. There is no weld on the surface of the steel pipe, which is called seamless steel pipe. Seamless steel pipe has a variety of uses and is also widely used in agricultural greenhouses. Seamless steel pipe is mostly used as the material for building the greenhouse frame. When building a greenhouse, ordinary seamless steel pipes are mostly made by drilling holes on the surface of the steel pipe and connecting it with bolts, or by welding. Pipe fittings or fixings are welded to the steel pipe to overlap with other steel pipes. However, drilling holes on the circumferential surface of the round pipe is more difficult and time-consuming. The punched holes are easily damaged, the welding method is easy to damage the steel pipe, and the welds are easy to break.

[0003] Therefore, designing a steel pipe that does not require punching, welding, bending and setting of clamping positions and maintains the integrity of the steel pipe structure is exactly the problem that the inventor wants to solve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a seamless galvanized pipe for agricultural greenhouses, which can achieve the function of maintaining the integrity of the steel pipe structure without the need for punching, welding, bending and setting positions.

[0005] The technical solution adopted by the utility model device is: a seamless galvanized pipe for agricultural greenhouses, which includes a galvanized steel pipe body and a limiting ring. The galvanized steel pipe body includes a pipe body, the outer surface of the pipe body is provided with an outer oxidation protection layer, the outer surface of the outer oxidation protection layer is provided with an outer galvanized layer, the outer surface of the outer galvanized layer is provided with a glue layer, the outer surface of the glue layer is provided with a self-lubricating material layer, the inner surface of the pipe body is provided with an inner oxidation protection layer, and the inner surface of the inner oxidation protection layer is provided with an inner galvanized layer;

[0006] The pipe body comprises an arc top section, a vertical section and a horizontal section, both ends of the arc top section are connected with a vertical section, the lower end of the vertical section is connected with a horizontal section, the arc top section and the vertical section have a rounded transition, and the vertical section and the horizontal section have a rounded transition, a first curved groove is arranged in the middle of the arc top section, two second curved grooves are arranged on both sides of the first curved groove, two third curved grooves are arranged on both sides of the two second curved grooves, two fourth curved grooves are arranged on the vertical section, and a fifth curved groove is arranged on the horizontal section, the first curved groove, the second curved groove, the third curved groove, the fourth curved groove and the fifth curved groove have the same structure and are all U-shaped grooves, and the outer sides of the second curved groove, the third curved groove, the fourth curved groove and the fifth curved groove are all slidably provided with a limiting collar, the opening directions of the first curved groove, the second curved groove, the third curved groove and the fourth curved groove are all toward the outer side of the galvanized steel pipe body, and the opening direction of the fifth curved groove is toward the inner side of the galvanized steel pipe body, and a crossbeam steel pipe is respectively arranged between the second curved groove, the third curved groove, the fourth curved groove and the fifth curved groove and the contacting limiting collar.

[0007] Furthermore, a limiting collar is slidably arranged on the outer side of the first groove arranged on the main body of the galvanized steel pipe, and a crossbeam steel pipe is respectively arranged between the first curved groove and the contacting limiting collar.

[0008] Furthermore, a supporting square tube is inserted and arranged on the outer side of the first curved groove, and a rectangular base is arranged on the bottom of the supporting square tube.

[0009] Furthermore, a positioning hole is opened on the end surface of the supporting square tube, and a crossbeam steel pipe is arranged inside the positioning hole, and the crossbeam steel pipe is arranged inside the first curved groove.

[0010] Furthermore, the cross section of the supporting square tube is rectangular, and the supporting square tube and the outer side wall of the first curved groove have a clearance fit and the clearance is no greater than 2 mm.

[0011] Furthermore, the two horizontal sections are arranged opposite to each other, a bottom square tube is arranged between the two horizontal sections, and two ends of the bottom square tube are respectively inserted into the outer sides of the two horizontal sections.

[0012] Furthermore, both ends of the bottom square tube are provided with limiting holes, limiting bolts are arranged inside the limiting holes, and the outer side of the tail of the limiting bolt is threadedly connected with a limiting nut.

[0013] Furthermore, the limiting bolt is in contact with the end of the horizontal section, and the inner wall height of the bottom square tube is greater than the outer diameter of the horizontal section and the difference is no greater than 2 mm.

[0014] The beneficial effects of the utility model device are:

[0015] 1. The utility model adopts a bending method to bend the galvanized seamless steel pipe for multiple times, and bends the pipe body to form a slot for setting the crossbeam steel pipe, and cooperates with a rectangular ring for limiting the position, thereby achieving the function of bending and setting the position without punching and welding, and maintaining the integrity of the steel pipe structure.

[0016] 2. The outer layer of the galvanized steel pipe of the utility model is provided with a self-lubricating layer, which greatly reduces the friction coefficient of the steel pipe surface. When the pipe is inserted or the tarpaulin is rolled up, the friction force can be reduced, thereby achieving the function of reducing the friction force and improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural view of the pipe body of the utility model.

[0018] Figure 2 This is a structural view of the first embodiment of the utility model.

[0019] Figure 3 This is a structural view of the second embodiment of the present utility model.

[0020] Figure 4 This is a structural view of the third embodiment of the present utility model.

[0021] Explanation of the reference numerals: 1-arc top section; 2-vertical section; 3-horizontal section; 4-first curved groove; 5-second curved groove; 6-third curved groove; 7-limiting collar; 8-fourth curved groove; 9-fifth curved groove; 10-supporting square tube; 11-positioning hole; 12-bottom square tube; 13-limiting bolt; 14-limiting nut; 15-limiting hole; 16-tube body; 17-inner oxidation protective layer; 18-outer oxidation protective layer; 19-inner galvanized layer; 20-outer galvanized layer; 21-rubber layer; 22-self-lubricating material layer; 23-galvanized steel tube body. DETAILED DESCRIPTION

[0022] The following is a further description of the present invention in conjunction with specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0023] Example 1: See Figures 1 to 2It is a structural view of the pipe body 16 of the utility model and a structural view of the first embodiment of the utility model. A seamless galvanized pipe for agricultural greenhouses includes a galvanized steel pipe body 23 and a limiting ring 7. The galvanized steel pipe body 23 includes a pipe body 16. The outer surface of the pipe body 16 is provided with an outer oxidation protective layer 18, and the inner surface of the pipe body 16 is provided with an inner oxidation protective layer 17. An oxidation protective film is formed on the inner and outer surfaces of the pipe body 16 by pickling, which is convenient for protecting the pipe body and extending its service life. The outer surface of the outer oxidation protective layer 18 is provided with an outer galvanized layer 20, and the inner oxidation protective layer 17 is provided with an outer galvanized layer 20. An inner galvanized layer 19 is provided on the inner surface. Galvanizing is a commonly used technology in the seamless steel pipe industry. The inner and outer surfaces of the seamless steel pipe can be galvanized at one time to increase corrosion resistance. The galvanized steel pipe main body 23 of the utility model needs to undergo friction with the pipe body during use. In order to better protect the pipe body 16, a rubber layer 21 is provided on the outer surface of the outer galvanized layer 20, and a self-lubricating material layer 22 is provided on the outer surface of the rubber layer 21. The self-lubricating material can effectively reduce the friction on the surface of the pipe body 16, and can reduce wear when the pipe bodies are in contact and move rubbingly.

[0024] The pipe body 16 includes an arc top section 1, a vertical section 2, and a horizontal section 3. Both ends of the arc top section 1 are connected to the vertical section 2, and the lower end of the vertical section 2 is connected to the horizontal section 3. There is a rounded transition between the arc top section 1 and the vertical section 2, and there is a rounded transition between the vertical section 2 and the horizontal section 3. The galvanized steel pipe body 23 is bent into a shape suitable for the greenhouse frame by bending. A first curved groove 4 is provided in the middle of the arc top section 1, and two second curved grooves 5 are respectively provided on both sides of the first curved groove 4, and two third curved grooves 6 are respectively provided on both sides of the two second curved grooves 5. Two fourth curved grooves 8 are provided on the vertical section 2, and a fifth curved groove 9 is provided on the horizontal section 3. The first curved groove 4, the second curved groove 5, the third curved groove 6, the fourth curved groove 8, and the fifth curved groove 9 have the same structure and are all U-shaped grooves. The outer sides of the second curved groove 5, the third curved groove 6, the fourth curved groove 8, and the fifth curved groove 9 are all slidably provided with a limiting collar 7. The opening directions of the third bend groove 6 and the fourth bend groove 8 are both toward the outside of the galvanized steel pipe main body 23, and the opening direction of the fifth bend groove 9 is toward the inside of the galvanized steel pipe main body 23. A crossbeam steel pipe is respectively arranged between the second bend groove 5, the third bend groove 6, the fourth bend groove 8, the fifth bend groove 9 and the contacting limiting ring 7. A limiting ring 7 is slidingly arranged on the outer side of the first groove arranged on the galvanized steel pipe main body 23, and a crossbeam steel pipe is respectively arranged between the first bend groove 4 and the contacting limiting ring 7. The fifth bend groove 9 and the horizontal section 3 can be buried underground to increase the stability of the frame. The crossbeam steel pipe is clamped by multiple bend grooves and limited by the limiting ring 7. The galvanized steel pipe main body 23 and the crossbeam steel pipe can be effectively assembled and limited. The end of the crossbeam steel pipe can be threadedly connected to the inner wall of the end of the crossbeam steel pipe using a threaded limiting flange for limiting. The crossbeam steel pipe will not fall off under the restriction of the limiting ring 7.

[0025] Example 2: See Figure 3 According to the structural view of the second embodiment of the utility model, for the greenhouse that needs support, it is necessary to set up support at the roof position. Therefore, further, a supporting square tube 10 is inserted and arranged on the outside of the first curved groove 4, and a rectangular base is arranged at the bottom of the supporting square tube 10. The rectangular base can be supported on the ground or buried underground. A positioning hole 11 is opened on the end face of the supporting square tube 10, and a crossbeam steel pipe is passed through the inner side of the positioning hole 11 and the crossbeam steel pipe is arranged on the inner side of the first curved groove 4. The cross section of the supporting square tube 10 is rectangular, and the gap between the supporting square tube 10 and the outer wall of the first curved groove 4 is matched and the gap is not more than 2mm. The crossbeam steel pipe passes through the positioning hole 11 and passes through the first curved groove 4 so that the first curved groove 4 and the supporting square tube 10 are combined together, that is, the crossbeam steel pipe is supported and fixed, and the galvanized steel pipe body 23 is connected to the supporting square tube 10, which is convenient and quick.

[0026] Example 3: See Figure 4 This is a structural view of the third embodiment of the utility model. In order to prevent the frame of the greenhouse from deforming inward, the two horizontal sections 3 are arranged opposite to each other, and a bottom square tube 12 is arranged between the two horizontal sections 3. The two ends of the bottom square tube 12 are respectively inserted into the outsides of the two horizontal sections 3, and the two ends of the bottom square tube 12 are provided with limiting holes 15. The inner side of the limiting hole 15 is provided with a limiting bolt 13. The outer side of the tail of the limiting bolt 13 is threadedly connected with a limiting nut 14. The limiting bolt 13 contacts with the end of the horizontal section 3. The inner wall height of the bottom square tube 12 is greater than the outer diameter of the horizontal section 3 and the difference is not greater than 2 mm. The bottom square tube 12 can effectively prevent the vertical sections 2 at both ends of the galvanized steel pipe body 23 from deforming inward.

[0027] The limiting hole 15 can also be processed into a threaded hole, and the bottom square tube 12 and the horizontal section 3 arranged on the inner side are tightly fixed together by a top screw to increase the stability of the greenhouse frame.

[0028] The utility model adopts a bending method to bend the galvanized seamless steel pipe for multiple times, and bends the pipe body to form a slot for setting the crossbeam steel pipe, and cooperates with a rectangular ring for limiting the position, thereby achieving the function of bending and setting the position without punching and welding, and maintaining the integrity of the steel pipe structure. A self-lubricating layer is provided on the outer layer of the galvanized steel pipe, which greatly reduces the friction coefficient of the steel pipe surface. When inserting the pipe or rolling up the tarpaulin, the friction force can be reduced, thereby achieving the function of reducing friction and improving the disassembly and assembly efficiency.

Claims

1. A seamless galvanized pipe for agricultural greenhouses, characterized by: It comprises a galvanized steel pipe body (23) and a limiting collar (7), wherein the galvanized steel pipe body (23) comprises a pipe body (16), the outer surface of the pipe body (16) is provided with an outer oxidation protective layer (18), the outer surface of the outer oxidation protective layer (18) is provided with an outer galvanized layer (20), the outer surface of the outer galvanized layer (20) is provided with a rubber layer (21), the outer surface of the rubber layer (21) is provided with a self-lubricating material layer (22), the inner surface of the pipe body (16) is provided with an inner oxidation protective layer (17), and the inner surface of the inner oxidation protective layer (17) is provided with an inner galvanized layer (19); The tube body (16) comprises an arc top section (1), a vertical section (2), and a horizontal section (3); both ends of the arc top section (1) are connected to the vertical section (2); the lower end of the vertical section (2) is connected to the horizontal section (3); a rounded transition is formed between the arc top section (1) and the vertical section (2); a rounded transition is formed between the vertical section (2) and the horizontal section (3); a first curved groove (4) is provided in the middle of the arc top section (1); two second curved grooves (5) are respectively provided on both sides of the first curved groove (4); two third curved grooves (6) are respectively provided on both sides of the two second curved grooves (5); two fourth curved grooves (8) are provided on the vertical section (2); a fifth curved groove (9) is provided on the horizontal section (3); The first curved groove (4), the second curved groove (5), the third curved groove (6), the fourth curved groove (8) and the fifth curved groove (9) have the same structure and are all U-shaped grooves. The outer sides of the second curved groove (5), the third curved groove (6), the fourth curved groove (8) and the fifth curved groove (9) are all slidably provided with limit collars (7). The opening directions of the first curved groove (4), the second curved groove (5), the third curved groove (6) and the fourth curved groove (8) are all oriented toward the outer side of the galvanized steel pipe body (23). The opening direction of the fifth curved groove (9) is oriented toward the inner side of the galvanized steel pipe body (23). A crossbeam steel pipe is respectively provided between the second curved groove (5), the third curved groove (6), the fourth curved groove (8) and the fifth curved groove (9) and the contacting limit collars (7).

2. The seamless galvanized pipe for agricultural greenhouses according to claim 1, characterized in that: A limiting collar (7) is slidably disposed on the outer side of the first groove disposed on the galvanized steel pipe body (23), and a crossbeam steel pipe is disposed between the first curved groove (4) and the contacting limiting collar (7).

3. The seamless galvanized pipe for agricultural greenhouses according to claim 1, characterized in that: A supporting square tube (10) is inserted and arranged on the outside of the first curved groove (4), and a rectangular base is arranged at the bottom of the supporting square tube (10).

4. A seamless galvanized pipe for agricultural greenhouses according to claim 3, characterized in that: A positioning hole (11) is provided on the end surface of the supporting square tube (10), and a crossbeam steel tube is provided inside the positioning hole (11), and the crossbeam steel tube is provided inside the first curved groove (4).

5. The seamless galvanized pipe for agricultural greenhouses according to claim 4, characterized in that: The cross section of the supporting square tube (10) is rectangular, and the gap between the supporting square tube (10) and the outer side wall of the first curved groove (4) is matched and the gap is not greater than 2 mm.

6. The seamless galvanized pipe for agricultural greenhouses according to claim 2, characterized in that: The two horizontal sections (3) are arranged opposite to each other, a bottom square tube (12) is arranged between the two horizontal sections (3), and two ends of the bottom square tube (12) are respectively plugged into the outsides of the two horizontal sections (3).

7. A seamless galvanized pipe for agricultural greenhouses according to claim 6, characterized in that: Both ends of the bottom square tube (12) are provided with limit holes (15), the inner sides of the limit holes (15) are provided with limit bolts (13), and the outer sides of the tail ends of the limit bolts (13) are threadedly connected to limit nuts (14).

8. The seamless galvanized pipe for agricultural greenhouses according to claim 7, characterized in that: The limiting bolt (13) contacts the end of the horizontal section (3), and the inner wall height of the bottom square tube (12) is greater than the outer diameter of the horizontal section (3) and the difference is no greater than 2 mm.

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