CN209833505U - Rotary stair structure made of aluminum alloy material - Google Patents
Rotary stair structure made of aluminum alloy material Download PDFInfo
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- CN209833505U CN209833505U CN201920628642.4U CN201920628642U CN209833505U CN 209833505 U CN209833505 U CN 209833505U CN 201920628642 U CN201920628642 U CN 201920628642U CN 209833505 U CN209833505 U CN 209833505U
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model discloses a rotary stair structure made of aluminum alloy materials, which comprises a bottom layer sweep, an upper layer sweep and a lower layer side guard wall, wherein the top part of the bottom layer sweep is provided with a mounting frame, the upper layer sweep is arranged above the bottom layer sweep, the bottom end of the mounting frame is fixedly arranged on the top surface of the bottom layer sweep, the top end of the mounting frame is fixedly arranged on the bottom surface of the upper layer sweep, the whole structure is divided into a supporting tube and a fixed support, the supporting tube is made of aluminum alloy materials, the pipes are connected by adopting fixed supports, the fixed supports and the pipes are connected by adopting riveting or other non-welding modes, the fixed supports are made of alloy steel materials, the reliability of connection is improved, the supporting tube adopts square tubes with different sizes according to the position and the space structure, the fixed supports adopt different structures and angles according to the position and structure, or adopt the forms of flat plate structures and the, the stability of whole stair structure is improved.
Description
Technical Field
The utility model relates to a vehicular equipment field specifically is an aluminum alloy material's rotatory stair structure.
Background
The traditional double-layer city passenger car is made of steel structures, but with the social requirement on low energy consumption, the whole car light weight is considered more and more in the design. Among them, an aluminum alloy material is a material which is considered first for the purpose of weight reduction of the skeleton.
Due to the fact that the aluminum alloy materials cannot be welded due to different welding performances and the influence of strength, a new structure needs to be considered for connection, particularly in a stair area, due to the fact that the stair area is complex in structure and level, connection of the aluminum alloy has certain difficulty, and the connection of the aluminum alloy needs to be achieved through innovation structures and various connection structures.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an aluminum alloy material's rotatory stair structure to solve because aluminum alloy material's welding property's difference to and the influence of intensity, the aluminum alloy material at key position can not weld, and this just need consider new structure and connect, especially in the stair region, because stair regional structure and level are complicated, the connection of aluminum alloy has certain degree of difficulty, need be through the problem that innovative structure and multiple connection structure realized.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides an aluminum alloy material's rotatory stair structure, including bottom sweep, upper sweep and lower floor's lateral part revetment, the top of bottom sweep is equipped with the mounting bracket, the top of bottom sweep is equipped with the upper sweep, the bottom mounting of mounting bracket sets up on the top surface of bottom sweep, the top of mounting bracket is fixed to be set up on the bottom surface of upper sweep, the top of mounting bracket is equipped with lower floor's lateral part revetment, be equipped with lower floor's rear part revetment between the bottom sweep of mounting bracket one side and the upper sweep, the stair entry has been seted up on the upper sweep, stair entry one side is equipped with upper floor's lateral part revetment, one side of upper floor's lateral part revetment is equipped with upper front portion revetment, it marks time to be equipped with the first level on the mounting bracket in proper order from bottom to top, the second level is marked time, the third level is marked time, the fourth level is marked.
The first-stage step comprises three first supporting tubes and a first cross beam, the three first supporting tubes are connected end to form a triangular structural frame, a fixing support is arranged at the joint of every two first supporting tubes, the three first supporting tubes are connected through the fixing support, the first cross beam is arranged between the two first supporting tubes, the fixing supports are respectively arranged at the two ends of the first cross beam, the first supporting tubes are connected with the two ends of the first cross beam through the fixing supports, the fixing supports are arranged on the outer side walls at the two ends of one first supporting tube, the first supporting tubes are respectively connected with the car body and a lower rear protection wall through the fixing supports on the side walls at the two ends, the mounting rack above the first-stage step is provided with a second-stage step, the second-stage step has the same structure as the first-stage step, the second-stage step comprises three first supporting tubes and the first cross beam, and a third-stage step is arranged above the second-stage step, the third stage step comprises two second supporting tubes and an inner frame, wherein both ends of the two second supporting tubes are respectively provided with a short tube and a long tube, the short tube and the long tube are respectively connected with the two second supporting tubes through a fixed support, the inner frame is arranged on the inner sides of the two second supporting tubes, four corners of the inner frame are respectively provided with a connecting plate, one side of the connecting plate is connected with the inner frame, the other side of the connecting plate is provided with a second supporting tube for connection, a fourth step is arranged above the third stage step and comprises two second supporting tubes and three transverse tubes, the two transverse tubes are connected with the two second supporting tubes end to form a rectangular structure, the other transverse tube is arranged in the middle position between the two second supporting tubes, the two second supporting tubes and the three transverse tubes are connected through the fixed supports, the structures of the fourth step and the fifth step are the same, and a sixth step, the sixth-stage step comprises two second supporting tubes and a second cross beam, a transverse tube is arranged at one end between the two second supporting tubes, the second cross beam is obliquely arranged at the middle position between the two second supporting tubes, a reinforcing tube is riveted at one side of the second cross beam, a seventh-stage step is arranged above the sixth-stage step and comprises two third supporting tubes, an outer tube and an arc tube, the two transverse tubes are arranged between the two third supporting tubes, fixing supports are arranged at the two ends of the two third supporting tubes, the two third supporting tubes are respectively connected with the mounting rack and the side wall of the vehicle body through the fixing supports, one side of one of the third supporting tubes is riveted with an outer tube, one side of the other third supporting tube is fixedly connected with an arc tube, one end of the arc tube is provided with a fixed support, the fixed support is fixedly connected with a mounting rack, the arc tube is positioned right above the second cross beam, and three branch tubes are arranged between the arc tube and the second cross beam.
As a further aspect of the present invention: be provided with the exit gate between upper strata side revetment and the anterior revetment of upper strata, the bottom of upper strata side revetment and the anterior revetment of upper strata is all fixed the one side that sets up the stair entry on the upper deck sweep for the passenger can get into the carriage upper strata from the exit gate between upper strata side revetment and the anterior revetment of upper strata, and the passenger can be avoided falling in the setting of upper strata side revetment and the anterior revetment of upper strata.
As a further aspect of the present invention: the fixing support is provided with a plurality of through holes, the side walls of the first supporting tube and the first cross beam are provided with a plurality of threaded holes at positions corresponding to the through holes of the fixing support, and the fixing support can be fixed on the side walls of the first supporting tube and the first cross beam through bolts, so that the fixing support is convenient to mount and dismount.
As a further aspect of the present invention: the bottom of a first supporting pipe in the second stage is equipped with three fixed bolster, has seted up the fixed orifices on the lateral wall of three fixed bolster respectively, has seted up spacing hole on the automobile body lateral wall that corresponds the position with the fixed orifices, steps on the automobile body lateral wall with the second stage through the rivet, improves the stability of structure.
As a further aspect of the present invention: the top surface both sides border position of connecting plate is equipped with a plurality of through-holes, and the inside of a plurality of through-holes all is equipped with the rivet, can be through rivet with the bottom surface both sides of connecting plate respectively with second stay tube and internal frame connection, when two second stay tubes received pressure, will take place deformation to inboard or outside, and the internal frame provides reverse effort to two second stay tubes, avoids the second level to mark time and takes place deformation.
As a further aspect of the present invention: the bottom surface both ends that the both sides were violently managed are marked time to the fourth level all are equipped with fixed bolster, and the bottom surface both ends that the both sides were violently managed are marked time to the fifth level also all are equipped with fixed bolster, and the fourth level is marked time and the fifth level is marked time all through the fixed bolster and the automobile body lateral wall and the mounting bracket fixed connection of both sides.
As a further aspect of the present invention: the first supporting tube, the second supporting tube and the third supporting tube are all made of aluminum alloy materials, the fixing support is made of alloy steel materials, the connection reliability is improved, the stability of the whole structure is enhanced, and the service life is prolonged.
The utility model has the advantages that:
1. in the utility model, the stepping rooms at all levels adopt a layered layout structure, thereby realizing high-strength connection and stair steering and saving the space in the vehicle;
2. the utility model is divided into five parts, namely, a stair step, a lower rear retaining wall, a lower side retaining wall, an upper front retaining wall and an upper side retaining wall, wherein the lower rear retaining wall provides protection and also provides a corresponding position for connecting the stair step;
3. the utility model discloses in, overall structure divide into two major structure of stay tube and fixed bolster, aluminium alloy material is adopted to used stay tube, the connection between tubular product adopts the fixed bolster to connect, the fixed bolster adopts riveting or other non-welding mode with being connected of tubular product, the fixed bolster adopts alloy steel material to make, the reliability of connecting is improved, the stay tube adopts the square pipe of size difference according to position and spatial structure, position and structure that the fixed bolster is according to, adopt different structure and angle, perhaps adopt forms such as plate structure, improve the stability of whole stair structure.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a spiral stair structure made of an aluminum alloy material according to the present invention;
FIG. 2 is a schematic structural view of the first step of the present invention;
FIG. 3 is a schematic structural view of a second step of the present invention;
FIG. 4 is a schematic structural view of a third step of the present invention;
FIG. 5 is a schematic view of a fourth step of the present invention;
FIG. 6 is a schematic structural view of a fifth step of the present invention;
FIG. 7 is a schematic structural view of a sixth step of the present invention;
FIG. 8 is a schematic structural view of a seventh step of the present invention;
in the figure: 1. a bottom layer vehicle panel; 2. a lower rear retaining wall; 3. an upper layer vehicle plate; 4. an upper side retaining wall; 5. a lower side retaining wall; 6. a first-stage step; 7. a second step; 8. a third step; 9. the fourth step; 10. step five; 11. a sixth step; 12. a seventh step; 13. fixing a bracket; 14. a first support tube; 15. a first cross member; 16. a fixing hole; 17. a second support tube; 18. an inner frame; 19. a short pipe; 20. a long tube; 21. a connecting plate; 22. a transverse tube; 23. reinforcing the pipe; 24. a second cross member; 25. a third support tube; 26. an outer tube; 27. a circular arc tube; 28. a branch pipe; 29. an upper front retaining wall; 30. and (7) mounting frames.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in figures 1-8, a rotary stair structure made of aluminum alloy materials comprises a bottom deck plate 1, an upper deck plate 3 and a lower lateral wall 5, wherein a mounting frame 30 is arranged at the top of the bottom deck plate 1, the upper deck plate 3 is arranged above the bottom deck plate 1, the bottom end of the mounting frame 30 is fixedly arranged on the top surface of the bottom deck plate 1, the top end of the mounting frame 30 is fixedly arranged on the bottom surface of the upper deck plate 3, the lower lateral wall 5 is arranged at the top of the mounting frame 30, a lower rear wall 2 is arranged between the bottom deck plate 1 and the upper deck plate 3 on one side of the mounting frame 30, a stair entrance is formed in the upper deck plate 3, an upper lateral wall 4 is arranged on one side of the stair entrance, an upper front wall 29 is arranged on one side of the upper wall 4, a first step 6, a second step 7, a third step 8, a fourth step 9, a fourth step 6, a fourth step 7, Fifth stage steps 10, sixth stage steps 11, and seventh stage steps 12.
The first-stage step 6 comprises three first supporting tubes 14 and first cross beams 15, the three first supporting tubes 14 are connected end to form a triangular structure frame, a fixing support 13 is arranged at the joint of every two first supporting tubes 14, the three first supporting tubes 14 are connected through the fixing support 13, a first cross beam 15 is arranged between the two first supporting tubes 14, the fixing supports 13 are respectively arranged at the two ends of the first cross beam 15, the first supporting tubes 14 are connected with the two ends of the first cross beam 15 through the fixing supports 13, the fixing supports 13 are arranged on the outer side walls at the two ends of one first supporting tube 14, the first supporting tubes 14 are connected with a vehicle body through the fixing supports 13 on the side walls at the two ends, a second-stage step 7 is arranged on the mounting frame 30 above the first-stage step 6, the second-stage step 7 is identical to the structure of the first-stage step 6, and the second-stage step 7 comprises three first supporting tubes 14 and first cross beams 15, a third step 8 is arranged above the second step 7, the third step 8 comprises two second supporting tubes 17 and inner frames 18, two ends of the two second supporting tubes 17 are respectively provided with a short tube 19 and a long tube 20, the short tube 19 and the long tube 20 are respectively connected with the two second supporting tubes 17 through a fixing support 13, the inner sides of the two second supporting tubes 17 are provided with the inner frames 18, four corners of the inner frames 18 are respectively provided with a connecting plate 21, one side of the connecting plate 21 is connected with the inner frames 18, the other side of the connecting plate 21 is provided with the second supporting tubes 17 for connection, a fourth step 9 is arranged above the third step 8, the fourth step 9 comprises two second supporting tubes 17 and three transverse tubes 22, wherein the two transverse tubes 22 are connected with the two second supporting tubes 17 end to form a rectangular structure, the other transverse tube 22 is arranged at the middle position between the two second supporting tubes 17, and the two second supporting tubes 17 and the three transverse tubes 22 are, the fourth-stage step 9 and the fifth-stage step 10 have the same structure, a sixth-stage step 11 is arranged on an installation frame 30 above the fifth-stage step 10, the sixth-stage step 11 comprises two second support pipes 17 and a second cross beam 24, a transverse pipe 22 is arranged at one end between the two second support pipes 17, the second cross beam 24 is obliquely arranged at the middle position between the two second support pipes 17, a reinforcing pipe 23 is riveted at one side of the second cross beam 24, a seventh-stage step 12 is arranged above the sixth-stage step 11, the seventh-stage step 12 comprises two third support pipes 25, an outer pipe 26 and an arc pipe 27, the two transverse pipes 22 are arranged between the two third support pipes 25, fixing supports 13 are arranged at two ends of the two third support pipes 25, the two third support pipes 25 are respectively connected with the installation frame 30 and the side wall of the vehicle body through the fixing supports 13, one side of one of the third support pipes 25 is riveted with the outer pipe 26, one side of the other third supporting tube 25 is fixedly connected with an arc tube 27, one end of the arc tube 27 is provided with a fixed support 13, the fixed support 13 is fixedly connected with an installation frame 30, the arc tube 27 is positioned right above the second cross beam 24, three branch tubes 28 are arranged between the arc tube 27 and the second cross beam 24, when in use, the whole structure is divided into two main structures of the supporting tube and the fixed support 13, the used first supporting tube 14, the used second supporting tube 17 and the used third supporting tube 25 are all made of aluminum alloy materials, the first supporting tube 14, the used second supporting tube 17 and the used third supporting tube 25 are connected by adopting fixed supports, the fixed support is connected with the first supporting tube 14, the used second supporting tube 17 and the used third supporting tube 25 by adopting riveting or other non-welding modes, the fixed support 13 is made of alloy steel materials, the connection reliability is improved, the first supporting tube 14, the used second supporting tube 17 and the used third supporting tube 25 adopt square tubes with different sizes according to positions and space, the fixing support 13 adopts different structures and angles according to the positions and structures, or adopts the forms of a flat plate structure and the like, so that the stability of the whole stair structure is improved.
An entrance and exit gate is arranged between the upper layer side protective wall 4 and the upper layer front protective wall 29, one side of a stair entrance arranged on the upper layer sweep 3 is fixed at the bottom ends of the upper layer side protective wall 4 and the upper layer front protective wall 29, so that passengers can enter the upper layer of the carriage from the entrance and exit gate between the upper layer side protective wall 4 and the upper layer front protective wall 29, and the passengers can be prevented from falling off due to the arrangement of the upper layer side protective wall 4 and the upper layer front protective wall 29.
A plurality of through holes are formed in the fixing support 13, a plurality of threaded holes are formed in positions, corresponding to the through holes of the fixing support 13, of the side walls of the first support pipe 14 and the first cross beam 15, the fixing support 13 can be fixed on the side walls of the first support pipe 14 and the first cross beam 15 through bolts, and installation and disassembly are facilitated.
The bottom of a first supporting pipe 14 in the second-stage step 7 is provided with three fixing supports 13, fixing holes 16 are formed in the side walls of the three fixing supports 13 respectively, limiting holes are formed in the side wall of the vehicle body at the position corresponding to the fixing holes 16, and the second-stage step 7 is arranged on the side wall of the vehicle body through rivets, so that the stability of the structure is improved.
The top surface both sides edge position of connecting plate 21 is equipped with a plurality of through-holes, and the inside of a plurality of through-holes all is equipped with the rivet, can be connected the bottom surface both sides of connecting plate 21 with second stay tube 17 and internal frame 18 respectively through the rivet, when two second stay tubes 17 received pressure, will take place deformation to the inboard or outside, and internal frame 18 provides reverse effort to two second stay tubes 17, avoids the second level to mark time 7 and takes place deformation.
The bottom surface both ends of violently managing 22 in 9 both sides of fourth level are marked time all are equipped with fixed bolster 13, and the bottom surface both ends of violently managing 22 in 10 both sides of fifth level are marked time also all are equipped with fixed bolster 13, and the fourth level is marked time 9 and is marked time 10 all through the fixed bolster 13 and the automobile body lateral wall and the mounting bracket 30 fixed connection of both sides with the fifth level.
The first supporting tube 14, the second supporting tube 17 and the third supporting tube 25 are all made of aluminum alloy materials, the fixing support 13 is made of alloy steel materials, the connection reliability is improved, the stability of the whole structure is enhanced, and the service life is prolonged.
The utility model discloses a theory of operation: the utility model discloses during the use, whole structure divide into two major structure of stay tube and fixed bolster 13, used first stay tube 14, second stay tube 17 and third stay tube 25 all adopt aluminum alloy material to make, first stay tube 14, connection between second stay tube 17 and third stay tube 25 adopts the fixed bolster to connect, fixed bolster and first stay tube 14, riveting or other non-welding mode are adopted in the connection of second stay tube 17 and third stay tube 25, fixed bolster 13 adopts alloy steel material to make, the reliability of connecting is improved, first stay tube 14, second stay tube 17 and third stay tube 25 adopt the different size square pipe according to position and spatial structure, position and structure that fixed bolster 13 is according to, adopt different structure and angle, or adopt forms such as plate structure.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The rotary stair structure is characterized by comprising a bottom layer sweep (1), an upper layer sweep (3) and a lower layer side protective wall (5), wherein a mounting frame (30) is arranged at the top of the bottom layer sweep (1), the upper layer sweep (3) is arranged above the bottom layer sweep (1), the bottom end of the mounting frame (30) is fixedly arranged on the top surface of the bottom layer sweep (1), the top end of the mounting frame (30) is fixedly arranged on the bottom surface of the upper layer sweep (3), the top of the mounting frame (30) is provided with the lower layer side protective wall (5), a lower layer rear protective wall (2) is arranged between the bottom layer sweep (1) and the upper layer sweep (3) on one side of the mounting frame (30), a stair entrance is formed in the upper layer sweep (3), an upper layer side protective wall (4) is arranged on one side of the stair entrance, an upper layer front protective wall (29) is arranged on one side of the upper layer side protective wall (4), a first step (6), a second step (7), a third step (8), a fourth step (9), a fifth step (10), a sixth step (11) and a seventh step (12) are sequentially arranged on the mounting rack (30) from bottom to top;
the first-stage step (6) comprises three first supporting tubes (14) and first cross beams (15), the three first supporting tubes (14) are connected end to form a triangular structure frame, a fixing support (13) is arranged at the joint of every two first supporting tubes (14), the three first supporting tubes (14) are connected through the fixing supports (13), the first cross beam (15) is arranged between the two first supporting tubes (14), the fixing supports (13) are respectively arranged at the two ends of the first cross beam (15), the first supporting tubes (14) are connected with the two ends of the first cross beam (15) through the fixing supports (13), the fixing supports (13) are arranged on the outer side walls at the two ends of one first supporting tube (14), the first supporting tubes (14) are respectively connected with the lower-layer rear protective wall (2) through the vehicle body fixing supports (13) on the side walls at the two ends, a second-stage step (7) is arranged on a mounting rack (30) above the first-stage step (6), the second-stage step (7) and the first-stage step (6) are identical in structure, the second-stage step (7) comprises three first supporting pipes (14) and a first cross beam (15), a third-stage step (8) is arranged above the second-stage step (7), the third-stage step (8) comprises two second supporting pipes (17) and an inner frame (18), two ends of each second supporting pipe (17) are respectively provided with a short pipe (19) and a long pipe (20), the short pipes (19) and the long pipes (20) are respectively connected with the two second supporting pipes (17) through fixing supports (13), the inner frames (18) are arranged on the inner sides of the two second supporting pipes (17), connecting plates (21) are respectively arranged at four corners of the inner frame (18), one sides of the connecting plates (21) are connected with the inner frame (18), the other sides of the connecting plates (21) are provided with the second supporting pipes (17) for connection, a fourth-stage step (9) is arranged above the third-, the fourth-stage step (9) comprises two second supporting pipes (17) and three transverse pipes (22), wherein the two transverse pipes (22) are connected with the two second supporting pipes (17) end to form a rectangular structure, the other transverse pipe (22) is arranged in the middle position between the two second supporting pipes (17), the two second supporting pipes (17) and the three transverse pipes (22) are connected through fixing supports (13), the fourth-stage step (9) and the fifth-stage step (10) are identical in structure, a sixth-stage step (11) is arranged on a mounting rack (30) above the fifth-stage step (10), the sixth-stage step (11) comprises two second supporting pipes (17) and a second cross beam (24), the transverse pipe (22) is arranged at one end between the two second supporting pipes (17), the second cross beam (24) is obliquely arranged in the middle position between the two second supporting pipes (17), and a reinforcing pipe (23) is riveted on one side of the second cross beam (24), a seventh step (12) is arranged above the sixth step (11), the seventh step (12) comprises two third supporting tubes (25), an outer tube (26) and an arc tube (27), two transverse tubes (22) are arranged between the two third supporting tubes (25), two ends of the two third supporting tubes (25) are respectively provided with a fixed bracket (13), the two third supporting tubes (25) are respectively connected with the mounting rack (30) and the side wall of the vehicle body through the fixed brackets (13), one side of one of them third stay tube (25) is riveted with outer tube (26), one side fixedly connected with circular arc pipe (27) of another third stay tube (25), and the one end of circular arc pipe (27) is equipped with fixed bolster (13), fixed bolster (13) and mounting bracket (30) fixed connection, and circular arc pipe (27) are located second crossbeam (24) directly over, are equipped with three branch pipe (28) between circular arc pipe (27) and second crossbeam (24).
2. The aluminum alloy material spiral stair structure of claim 1, wherein an entrance/exit gate is arranged between the upper side retaining wall (4) and the upper front retaining wall (29), and the bottom ends of the upper side retaining wall (4) and the upper front retaining wall (29) are fixedly arranged on one side of a stair entrance on the upper deck (3).
3. The aluminum alloy material spiral stair structure of claim 1, wherein a plurality of through holes are formed in the fixing support (13), and a plurality of threaded holes are formed in positions of the side walls of the first supporting tube (14) and the first cross beam (15) corresponding to the plurality of through holes of the fixing support (13).
4. The aluminum alloy material spiral stair structure according to claim 1, wherein three fixing supports (13) are arranged at the bottom of one first supporting tube (14) in the second-stage step (7), fixing holes (16) are respectively formed in the side walls of the three fixing supports (13), and limiting holes are formed in the side wall of the stair body at positions corresponding to the fixing holes (16).
5. The spiral stair structure made of aluminum alloy material according to claim 1, wherein a plurality of through holes are formed in the edges of the two sides of the top surface of the connecting plate (21), and rivets are arranged inside the through holes.
6. The aluminum alloy material spiral stair structure according to claim 1, wherein fixing supports (13) are respectively arranged at two ends of the bottom surfaces of the transverse pipes (22) at two sides of the fourth-stage step (9), and fixing supports (13) are respectively arranged at two ends of the bottom surfaces of the transverse pipes (22) at two sides of the fifth-stage step (10).
7. The spiral stair structure made of aluminum alloy material according to claim 1, wherein the first supporting tube (14), the second supporting tube (17) and the third supporting tube (25) are made of aluminum alloy material, and the fixing bracket (13) is made of alloy steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628642.4U CN209833505U (en) | 2019-05-05 | 2019-05-05 | Rotary stair structure made of aluminum alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628642.4U CN209833505U (en) | 2019-05-05 | 2019-05-05 | Rotary stair structure made of aluminum alloy material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209833505U true CN209833505U (en) | 2019-12-24 |
Family
ID=68915192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920628642.4U Withdrawn - After Issue CN209833505U (en) | 2019-05-05 | 2019-05-05 | Rotary stair structure made of aluminum alloy material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209833505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969089A (en) * | 2019-05-05 | 2019-07-05 | 安徽安凯汽车股份有限公司 | A kind of spiral stairs structure of aluminum alloy materials |
-
2019
- 2019-05-05 CN CN201920628642.4U patent/CN209833505U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969089A (en) * | 2019-05-05 | 2019-07-05 | 安徽安凯汽车股份有限公司 | A kind of spiral stairs structure of aluminum alloy materials |
| CN109969089B (en) * | 2019-05-05 | 2024-02-06 | 安徽安凯汽车股份有限公司 | Rotary stair structure made of aluminum alloy material |
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