CN212772803U - Aluminum alloy rectangular pipe individual layer net shell bolted connection node - Google Patents
Aluminum alloy rectangular pipe individual layer net shell bolted connection node Download PDFInfo
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- CN212772803U CN212772803U CN202021254766.XU CN202021254766U CN212772803U CN 212772803 U CN212772803 U CN 212772803U CN 202021254766 U CN202021254766 U CN 202021254766U CN 212772803 U CN212772803 U CN 212772803U
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- rectangular pipe
- strength bolt
- washer
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Abstract
The patent discloses an aluminum alloy rectangular pipe individual layer net shell bolted connection node, including the node body, high strength bolt, nut, lock washer, shrouding, angle steel or flat board and blind rivet. The rod piece connected with the rod piece is an aluminum alloy rectangular tube. The node body is connected with the aluminum alloy rectangular pipe, a material with good weldability is introduced for transition, and the node body is riveted with the aluminum alloy rectangular pipe through a blind rivet, so that the node is basically equal in strength; adopt four independent angle steel or dull and stereotyped and aluminum alloy rectangular pipe to connect, can adapt to the aluminum alloy rectangular pipe of different size deviations, guarantee its riveted reliability to the riveting is accomplished in the mill, in site operation, only need rotate high strength bolt polygon section, twists the little screw thread section into the node body, again to nut direction swivel nut, and it is tight to nut, lock washer and shrouding top, and the installation is simple convenient, has reduced the site operation degree of difficulty, easily guarantees the time limit for a project.
Description
Technical Field
The patent relates to an aluminum alloy individual layer latticed shell structure, more specifically says, relates to an aluminum alloy rectangular pipe individual layer latticed shell bolted connection node.
Background
The aluminum alloy space latticed shell structure is a novel space grid structure which is rapidly developed in recent years. The aluminum alloy material has the advantages of light weight, high strength, good corrosion resistance, convenient processing, integrated molding and the like, and is widely applied to garden greenhouses, large-scale dry coal bunker top covers, oil storage tank arch items, roofs of sewage treatment plants and the like. At present, the common form is a plate type node connection H-shaped rod piece single-layer latticed shell structure, and the structure form and the node connection have the following defects: the single-layer reticulated shell rod piece is usually a bending component, and because the elastic modulus of the aluminum alloy material is only one third of that of steel and the out-of-plane inertia moment of the H-shaped section is relatively small, the stability of the aluminum alloy H-shaped rod piece is poor, so that the strength of the material cannot be fully exerted; in the traditional plate type node of the H-shaped rod piece, only the flange part is connected with the upper cover plate and the lower cover plate through a plurality of bolts or rivets, so that the strength of the node is greatly weakened compared with that of the rod piece; meanwhile, a large amount of riveting operation needs to be carried out on the node at a high-altitude site, so that the construction period is long and the safety risk of construction and installation personnel is high; in addition, such nodes often require the rod sections to have the same height, so that some rod sections cannot fully exert their material properties.
Compared with an H-shaped rod piece, the rectangular tube has the advantages of better torsion resistance, plane external stability and the like, so that the single-layer latticed shell of the rectangular tube has better mechanical property than the single-layer latticed shell of the H-shaped rod piece. In order to avoid the defects of the prior art, the patent provides a bolt connection node of an aluminum alloy rectangular pipe single-layer latticed shell.
Disclosure of Invention
The purpose of this patent is in order to overcome prior art's not enough, provides an aluminum alloy rectangular pipe individual layer latticed shell bolted connection node. To rectangle steel pipe individual layer latticed shell structure, the bolt connection node of present comparatively ripe passes the shrouding and the node body connected form of welding at rectangle member tip for two upper and lower bolts, but to aluminum alloy rectangular pipe, because the weldability of aluminum alloy is relatively poor, if the shrouding is direct with the rectangular pipe welding, welded joint's intensity will greatly reduced (joint strength is about 0.5 ~ 0.7 of aluminum alloy parent metal), this will seriously influence the make full use of member intensity. Consequently, combine comparatively ripe aluminum alloy riveting connection technique, this patent has proposed the connection mode that adopts better shrouding of weldability, angle steel or dull and stereotyped to carry out the transition. The technical scheme of the invention is as follows:
the utility model provides an aluminum alloy rectangular pipe individual layer net shell bolted connection node, includes the node body, high strength bolt, nut, lock washer, shrouding, angle steel or flat board and blind rivet. The rod connected with the rod is an aluminum alloy rectangular tube. Wherein, the node body is provided with a plurality of bolt holes; the sealing plate is provided with an upper round hole and a lower round hole; the screw rod of the high-strength bolt is sequentially divided into a large thread section, a polygonal section and a small thread section from the screw cap to the other end, and the thread directions of the large thread section and the small thread section are opposite; the nut is matched with the large thread section of the high-strength bolt, and the bolt hole of the node body is matched with the small thread section of the corresponding high-strength bolt; the anti-loosening washer is a set consisting of two identical washers, a round hole is formed in the middle of each washer, different sawteeth are arranged on the upper surface and the lower surface of each washer, one surface of each washer is a cam-shaped large tooth, the slope angle of each washer is larger than the thread angle of the bolt, and the other surface of each washer is a dense small tooth; the sealing plate and the node body are connected through a high-strength bolt and a nut; a rivet hole through which a blind rivet can pass is formed in the angle steel or the flat plate; a rivet hole through which a blind rivet can pass is formed in the aluminum alloy rectangular tube; the sealing plate and the angle steel or the flat plate are made of non-aluminum alloy materials with good weldability, such as steel, stainless steel and the like.
The construction and installation method comprises the following steps: (1) firstly, processing and manufacturing each part and an aluminum alloy rectangular tube in a factory, and then welding an angle steel or a flat plate with a sealing plate; (2) and the high-strength bolt penetrates through the welding side of the sealing plate, penetrates out of the corresponding round hole and then penetrates through the round holes of the anti-loosening gaskets, wherein the large tooth surfaces of the two gaskets are opposite. Screwing a nut into the large thread section of the high-strength bolt, and riveting the welded sealing plate and the angle steel or flat plate with the aluminum alloy rectangular pipe through a blind rivet; (3) during on-site construction, the polygonal section of the high-strength bolt is rotated to screw the small thread section of the high-strength bolt into the corresponding bolt hole of the node body until the polygonal section and the node body are tightly pressed, and then the nut is rotated towards the nut direction until the nut, the anti-loose washer and the sealing plate are tightly pressed.
The invention has the beneficial effects that:
the node and the aluminum alloy rectangular pipe are transited by adopting a material with better weldability, and are riveted with the aluminum alloy rectangular pipe through a blind rivet, so that the node is basically equal in strength; the riveting is carried out in a factory, so that high-altitude connection on a construction site is avoided, the installation time is reduced, the construction period is guaranteed, and the safety of constructors is improved; in site construction, only the bolts are screwed into the node bodies, and then the nuts are screwed, so that the installation is rapid; the combination of the nut and the anti-loose washer can effectively resist the loosening of joints caused by vibration caused by wind or earthquake and the like, and the construction quality is easy to ensure; the node does not contain a sleeve, the high-strength bolt is exposed, whether the high-strength bolt is screwed can be judged visually only by observing whether the polygonal section of the high-strength bolt is in contact with the node body, and engineering supervision is facilitated; because sizes such as the height of actual aluminum alloy rectangular pipe, width, wall thickness compare with the design value and have certain deviation of allowwing, this patent adopts four independent angle steel or dull and stereotyped and aluminum alloy rectangular pipe to connect, consequently can adapt to the aluminum alloy rectangular pipe of different size deviations, guarantees its riveted reliability.
Drawings
Fig. 1 is a schematic view of a built-in angle iron type connection (embodiment one).
Fig. 2 is an external angle steel type connection diagram (embodiment two).
Fig. 3 is a schematic view of a built-in flat plate connection (embodiment three).
FIG. 4 is a schematic diagram of an external flat connection (embodiment four).
Wherein 1 is the node body, 2 is high strength bolt, 3 is the nut, 4 is lock washer, 5 is the shrouding, 6 is aluminum alloy rectangular pipe, 7 is the angle steel or flat board, 8 is blind rivet.
Detailed Description
As shown in fig. 1-4, an aluminum alloy rectangular pipe single-layer latticed shell bolt connection node comprises a node body 1, a high-strength bolt 2, a nut 3, a lock washer 4, a sealing plate 5, an aluminum alloy rectangular pipe 6, an angle steel or a flat plate 7 and a blind rivet 8. The node body 1 is in a hexagonal frustum overall shape, the angle of each edge surface is determined according to the space angle of a rod piece connected with the node, and the axis of a bolt hole of each edge surface is perpendicular to the edge surface; the closing plate 5 is provided with an upper round hole and a lower round hole; the screw rod of the high-strength bolt 2 is sequentially divided into a large thread section, a regular hexagon section and a small thread section from the screw cap to the other end; the nut 3 is matched with the large thread section of the high-strength bolt 2, and the bolt hole of the node body 1 is matched with the small thread section of the corresponding high-strength bolt 2; the anti-loosening washer 4 is composed of two identical washers, a round hole is formed in the middle of each washer, different sawteeth are arranged on the upper surface and the lower surface of each washer, one surface of each washer is a cam-shaped large tooth, the slope angle of each washer is larger than the thread angle of the bolt, and the other surface of each washer is a dense small tooth. The shrouding 5 and angle steel or dull and stereotyped 7 welding are connected through high strength bolt 2 and nut 3 with the node body 1, and angle steel or dull and stereotyped 7 are riveted through blind rivet 8 with aluminum alloy rectangular pipe 6.
The first implementation mode comprises the following steps:
(1) firstly, processing and manufacturing each part and an aluminum alloy rectangular tube in a factory, and welding an angle steel 7 and a sealing plate 5; (2) the high-strength bolt 2 penetrates through the welding side of the closing plate 5, penetrates out of the corresponding round hole and then penetrates through the round holes of the anti-loosening washers 4, wherein the large tooth surfaces of the two washers are opposite. Screwing the nut 3 into the large-thread section of the high-strength bolt 2, extending the sealing plate 5 and the angle steel 7 into the aluminum alloy rectangular tube 6, aligning the sealing plate with the rivet hole, and riveting by using a blind rivet 8; (3) the polygonal section of the high-strength bolt 2 is rotated on a construction site, the small thread section of the high-strength bolt 2 is screwed into the corresponding bolt hole of the node body 1 until the polygonal section and the node body 1 are tightly pressed, and then the nut 3 is rotated towards the nut direction until the nut 3, the anti-loose washer 4 and the seal plate 5 are tightly pressed.
The second embodiment:
(1) firstly, processing and manufacturing each part and an aluminum alloy rectangular tube in a factory, and welding an angle steel 7 and a sealing plate 5; (2) the high-strength bolt 2 penetrates through the welding side of the closing plate 5, penetrates out of the corresponding round hole and then penetrates through the round holes of the anti-loosening washers 4, wherein the large tooth surfaces of the two washers are opposite. Screwing the nut 3 into the large-thread section of the high-strength bolt 2, aligning the rivet holes on the inner sides of the sealing plate 5 and the angle steel 7 with the rivet holes formed in the outer wall of the aluminum alloy rectangular tube 6, and riveting by using a blind rivet 8; (3) the polygonal section of the high-strength bolt 2 is rotated on a construction site, the small thread section of the high-strength bolt 2 is screwed into the corresponding bolt hole of the node body 1 until the polygonal section and the node body 1 are tightly pressed, and then the nut 3 is rotated towards the nut direction until the nut 3, the anti-loose washer 4 and the seal plate 5 are tightly pressed.
The third embodiment is as follows:
(1) firstly, processing and manufacturing each part and an aluminum alloy rectangular tube in a factory, and welding a flat plate 7 and a sealing plate 5; (2) the high-strength bolt 2 penetrates through the welding side of the closing plate 5, penetrates out of the corresponding round hole and then penetrates through the round holes of the anti-loosening washers 4, wherein the large tooth surfaces of the two washers are opposite. Screwing the nut 3 into the large thread section of the high-strength bolt 2, extending the sealing plate 5 and the flat plate 7 into the aluminum alloy rectangular tube 6, and riveting the rivet holes by using blind rivets 8; (3) the polygonal section of the high-strength bolt 2 is rotated on a construction site, the small thread section of the high-strength bolt 2 is screwed into the corresponding bolt hole of the node body 1 until the polygonal section and the node body 1 are tightly pressed, and then the nut 3 is rotated towards the nut direction until the nut 3, the anti-loose washer 4 and the seal plate 5 are tightly pressed.
The fourth embodiment:
(1) firstly, processing and manufacturing each part and an aluminum alloy rectangular tube in a factory, and welding a flat plate 7 and a sealing plate 5; (2) the high-strength bolt 2 penetrates through the welding side of the closing plate 5, penetrates out of the corresponding round hole and then penetrates through the round holes of the anti-loosening washers 4, wherein the large tooth surfaces of the two washers are opposite. Screwing the nut 3 into the large-thread section of the high-strength bolt 2, aligning the rivet holes on the inner sides of the sealing plate 5 and the flat plate 7 with the rivet holes formed in the outer wall of the aluminum alloy rectangular tube 6, and riveting by using a blind rivet 8; (3) the polygonal section of the high-strength bolt 2 is rotated on a construction site, the small thread section of the high-strength bolt 2 is screwed into the corresponding bolt hole of the node body 1 until the polygonal section and the node body 1 are tightly pressed, and then the nut 3 is rotated towards the nut direction until the nut 3, the anti-loose washer 4 and the seal plate 5 are tightly pressed.
Claims (4)
1. A single-layer latticed shell bolt connection node of an aluminum alloy rectangular pipe comprises a node body, a high-strength bolt, a nut, a check washer, a sealing plate, an angle steel or a flat plate and a blind rivet, wherein a rod piece connected with the node body is an aluminum alloy rod piece; the node body is characterized in that a plurality of bolt holes are formed in the node body; the sealing plate is provided with an upper round hole and a lower round hole; the screw rod of the high-strength bolt is sequentially divided into a large thread section, a polygonal section and a small thread section from the screw cap to the other end; the nut is matched with the large thread section of the high-strength bolt, and the bolt hole of the node body is matched with the small thread section of the corresponding high-strength bolt; the anti-loosening washer is a set consisting of two identical washers, a round hole is formed in the middle of each washer, different sawteeth are arranged on the upper surface and the lower surface of each washer, one surface of each washer is a cam-shaped large tooth, the slope angle of each washer is larger than the thread angle of the high-strength bolt, and the other surface of each washer is a dense small tooth; the sealing plate and the angle steel or the flat plate are made of non-aluminum alloy materials such as steel, stainless steel and the like with good weldability; the angle steel or the flat plate is provided with a rivet hole through which a blind rivet can pass; a rivet hole through which a blind rivet can pass is formed in the aluminum alloy rod piece; the sealing plate is welded with angle steel or a flat plate, then the high-strength bolt penetrates out from the welding side, and is riveted with the blind rivet for the aluminum alloy rectangular pipe after being connected with the anti-loose washer and the nut.
2. The aluminum alloy rectangular pipe single-layer latticed shell bolt connection joint as claimed in claim 1, wherein: the thread directions of the large thread section and the small thread section of the high-strength bolt screw are opposite.
3. The aluminum alloy rectangular pipe single-layer latticed shell bolt connection joint as claimed in claim 1, wherein: the diameter of the round hole on the sealing plate is 0.5-2mm larger than the major diameter of the corresponding high-strength bolt large thread section.
4. The aluminum alloy rectangular pipe single-layer latticed shell bolt connection joint as claimed in claim 1, wherein: the length of the blind rivet is 2-5mm longer than the sum of the thickness of the angle steel or the flat plate and the thickness of the aluminum alloy rod piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254766.XU CN212772803U (en) | 2020-07-01 | 2020-07-01 | Aluminum alloy rectangular pipe individual layer net shell bolted connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254766.XU CN212772803U (en) | 2020-07-01 | 2020-07-01 | Aluminum alloy rectangular pipe individual layer net shell bolted connection node |
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| Publication Number | Publication Date |
|---|---|
| CN212772803U true CN212772803U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021254766.XU Active CN212772803U (en) | 2020-07-01 | 2020-07-01 | Aluminum alloy rectangular pipe individual layer net shell bolted connection node |
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| CN (1) | CN212772803U (en) |
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