Slope-adjustable assembled stair platform

Abstract

The utility model discloses a gradient-adjustable assembled stair platform, belongs to the field of elevating platforms, and aims to solve the problem of poor bearing capacity of the conventional gradient-adjustable assembled stair platform. Comprising a starting inclined ladder, a slow step inclined ladder and a platform which are sequentially connected through an angle adjusting device, and the slow step inclined ladder is supported on the ground through a plurality of support assemblies; the support assembly comprises a support body, fixed connecting lugs and adjustable connecting lugs, the fixed connecting lugs are arranged at the top end of the support body, the adjustable connecting lugs slide in the length direction of the slow inclined ladder or are fixedly connected with the slow inclined ladder through bolts, and the fixed connecting lugs and the adjustable connecting lugs are hinged in a one-to-one correspondence mode. And the hinging axes of the plurality of fixed connecting lugs are coaxial, and the axes are arranged perpendicular to the length direction of the slow-step inclined ladder. Compared with the prior art, due to the fact that the multiple support assemblies capable of being matched with the gradient of the staircase are additionally arranged on the lower side of the staircase for supporting, the bearing capacity of the staircase is higher, and the reliability is better.

Description

Technical Field

[0001] The utility model belongs to the field of climbing platforms, and in particular relates to an assembled staircase platform with adjustable slope. Background Art

[0002] Production lines consisting of many devices are often three-dimensional, and require operating stations at different heights to facilitate inspection, repair or maintenance of the equipment on the production line. Building stair platforms along the production line is currently the main choice to solve the problem of different heights. For example, in the tobacco industry production line, in addition to the main equipment such as the shredder, moisture recovery machine, and shredder, a large number of auxiliary equipment such as belt conveyors, vibrating troughs, and elevators are used. The large-scale use of auxiliary equipment has improved the degree of industrial automation. Generally, a production line is several kilometers long. The tobacco industry produces a lot of dust and tobacco ash during production. In order to ensure product quality, the production line needs to be cleaned on a shift basis, which is a lot of work. In order to improve efficiency and ensure safety, cigarette factories need to configure a large number of maintenance and cleaning stair platforms.

[0003] There are generally three ways to install steel structure platforms: 1. The production equipment is equipped with an inspection platform. The staircase platform provided by the manufacturer only refers to the corresponding equipment. One equipment is equipped with a staircase platform. Each staircase platform has a set of starting inclined ladders. The staircase platform cannot be interconnected with the stairs of the surrounding equipment. In this case, the length of the staircase platform is much longer than the length of the staircase platform designed on site after the equipment is in place. The site appears messy due to too many starts. 2. On-site welding. On-site welding is generally carried out after the equipment is basically in place. The materials are pre-treated by grinding, rust removal, spraying anti-rust primer, etc. After welding and grinding, two layers of topcoat are generally required. There are certain dangers of opening fire and climbing during on-site welding. Spraying paint has a great impact on the on-site environment. The construction of the staircase platform is generally cross-operated with the equipment installation, which can easily affect the overall construction progress. 3. Off-site processing and on-site assembly, try not to use fire or welding on site. This method avoids the shortcomings of the above two methods, that is, the optimal staircase platform can be selected according to the actual situation on site, and unfavorable factors such as on-site welding and spraying paint can be avoided. After the overall design of a certain area platform is completed, it is disassembled into multiple groups of components that are easy to carry and lift. They are assembled on site and fixed with bolts and partially welded, which greatly reduces on-site workload and safety hazards.

[0004] A Chinese invention patent with publication number CN105484453A discloses an assembled staircase platform with adjustable slope, which can basically meet the requirements of the three-dimensional production line for assembled staircase platforms. However, the structure of some components of the patent is complex. The lower side of the stairs built between the platform and the ground has no support and is only fixed to the platform and the ground at both ends of the stairs. The angle adjustment device between the two sections of the inclined ladder is a weak point of force, and the overall bearing capacity is poor. If a fixed support is set under the stairs, the adjustable slope cannot be achieved. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled staircase platform with adjustable slope to solve the problem of poor bearing capacity of existing assembled staircase platforms with adjustable slope. The technical solution adopted by the utility model is as follows:

[0006] An assembled staircase platform with adjustable slope comprises a starting inclined ladder, a slow-step inclined ladder and a platform, wherein the slope of the slow-step inclined ladder is smaller than that of the starting inclined ladder, the upper end of the starting inclined ladder is connected to the lower end of the slow-step inclined ladder through an angle adjustment device, the upper end of the slow-step inclined ladder is connected to one end of the platform through the angle adjustment device, the lower end of the starting inclined ladder is supported on the ground, the platform is supported on the ground through a bracket assembly, and the slow-step inclined ladder is supported on the ground through a plurality of bracket assemblies;

[0007] The bracket assembly includes a bracket body, fixed connecting ears and adjustable connecting ears. A plurality of fixed connecting ears are provided at the top of the bracket body. The plurality of adjustable connecting ears slide along the length direction of the step-down ladder, or are fixedly connected to the step-down ladder by bolts respectively. The plurality of fixed connecting ears and the plurality of adjustable connecting ears are hinged one by one. The hinge axes of the plurality of fixed connecting ears are coaxial, and the axes are arranged perpendicular to the length direction of the step-down ladder.

[0008] Furthermore, the starting inclined ladder comprises two first inclined ladder beams, a plurality of step assemblies are arranged between the two first inclined ladder beams, the slow-step inclined ladder comprises two second inclined ladder beams, a plurality of step assemblies are arranged between the two second inclined ladder beams, the platform comprises two platform beams, the space between the two platform beams is covered with dry step assemblies, the upper ends of the two first inclined ladder beams are connected to the lower ends of the two second inclined ladder beams in a one-to-one correspondence through an angle adjustment device, one end of the two platform beams is connected to the upper ends of the two second inclined ladder beams in a one-to-one correspondence through an angle adjustment device, the ends of the two platform beams away from the slow-step inclined ladder are connected through an end beam, and the first inclined ladder beams, the second inclined ladder beams, the platform beams and the end beams are connected. The upper side surfaces are provided with nut grooves arranged along the length direction thereof, the inner side surfaces of the first inclined ladder beam, the second inclined ladder beam and the platform beam are provided with four nut grooves arranged along the length direction thereof, the lower side surfaces of the second inclined ladder beam and the platform beam are provided with nut grooves arranged along the length direction thereof, a plurality of first nuts are slidably arranged in the nut grooves on the inner side surfaces of the first inclined ladder beam, the second inclined ladder beam and the platform beam, two ends of a plurality of step assemblies are respectively connected to the corresponding first nuts by bolts, a plurality of second nuts are slidably arranged in the nut grooves on the lower side surfaces of the second inclined ladder beam and the platform beam, and a plurality of adjustable connecting ears are connected to the corresponding second nuts by bolts.

[0009] Furthermore, the angle adjustment device includes an intermediate toothed disc and two side toothed discs, a main end face tooth structure is provided on one end face of the intermediate toothed disc, a fine end face tooth structure is provided on the other end face of the intermediate toothed disc, the number of teeth of the fine end face tooth structure is greater than the number of teeth of the main end face tooth structure, the main end face tooth structure of the intermediate toothed disc is coaxial with the fine end face tooth structure, and the main end face tooth structure and the fine end face tooth structure are coaxially provided inside and outside on one end face of the side toothed disc, the intermediate toothed disc is arranged between the two side toothed discs, the intermediate toothed disc is meshed with the side toothed disc on one side through the main end face tooth structure, and the intermediate toothed disc is meshed with the side toothed disc on the other side through the fine end face tooth structure, the first inclined ladder beam and the second inclined ladder beam are respectively connected to the two side toothed discs, or the second inclined ladder beam and the platform beam are respectively connected to the two side toothed discs.

[0010] Furthermore, the number of teeth of the main end face tooth structure is 16 teeth, and the number of teeth of the fine end face tooth structure is 90 teeth.

[0011] Furthermore, the lower end of the first inclined ladder beam is supported on the ground through a starting base, and the starting base is a convex pentagon. One end surface of the starting base abuts against the ground and is connected by bolts, and the other end surface of the starting base abuts against the lower end surface of the first inclined ladder beam and is connected by bolts.

[0012] Furthermore, the end face of the starting base that abuts against the ground is defined as a first end face, and the end face of the starting base that abuts against the first inclined ladder beam is defined as a second end face. The angle between the first end face and the second end face is defined as a starting inclination angle. The starting base has three configurations, and the starting inclination angles of the three configurations of the starting base are 30°, 45° and 60°, respectively. The first inclined ladder beam is supported on the ground by a starting base of any configuration.

[0013] Furthermore, the starting base includes a base body and a cover plate. The starting base is a hollow structure with one end open or both ends open. A plurality of reinforcing ribs are provided between the first end face and the second end face. The opening of the base body is sealed by the cover plate.

[0014] Furthermore, the second inclined ladder beam includes a plurality of ladder beam sections connected in sequence, and two adjacent ladder beam sections are connected by direct parts. The direct parts include two L-shaped first connecting plates, and the two first connecting plates are wedged into each other and connected by reverse buckling to form a rectangular box.

[0015] Furthermore, it also includes a guardrail assembly, wherein the guardrail assembly includes a starting section guardrail, a slow-moving section guardrail and a platform guardrail;

[0016] The starting section guardrail includes two first vertical poles arranged at intervals, the middle parts of the two first vertical poles are connected by two cross bars, the tops of the two first vertical poles are connected by a first handrail surface tube, and the first vertical poles are fixed to the nut grooves on the upper side of the first inclined ladder beam through an adjustable vertical pole seat assembly;

[0017] The slow-walking section guardrail comprises a plurality of second uprights arranged at intervals, the middle parts of any two adjacent second uprights are connected by two cross bars, the tops of the plurality of second uprights are connected by a second handrail surface tube, and the second uprights are fixed to the nut grooves on the upper side of the second inclined ladder beam by an adjustable upright seat assembly;

[0018] The platform guardrail includes a side guardrail and an end guardrail. The side guardrail includes a plurality of third uprights arranged at intervals. The middle parts of any two adjacent third uprights are connected by two cross bars. The tops of the plurality of third uprights are connected by a third handrail surface tube. The third uprights are fixed to the nut grooves on the side surface of the platform beam by an adjustable upright seat assembly. The end guardrail includes two fourth uprights arranged at intervals. The middle parts of the two fourth uprights are connected by two cross bars. The tops of the two fourth uprights are connected by a fourth handrail surface tube. The fourth uprights are fixed to the nut grooves on the side surface of the end beam by an adjustable upright seat assembly.

[0019] The step guardrail, the slow-step guardrail and the side guardrail are located on the same side of the stair platform, the first vertical pole, the second vertical pole, the third vertical pole and the fourth vertical pole have the same height, the upper end of the first handrail surface tube and the lower end of the second handrail surface tube are hinged or fastened by a hinge screw, the upper end of the second handrail surface tube and one end of the third handrail surface tube are hinged or fastened by a hinge screw, the axial direction of the hinge screw is perpendicular to the length direction of the slow-step inclined ladder, and the other end of the third handrail surface tube is connected to one end of the fourth handrail surface tube by an elbow.

[0020] Furthermore, the adjustable upright seat assembly includes an upright joint and an upright base, the upright base is arranged on a nut groove on the upper side of the first inclined ladder beam, the second inclined ladder beam, the platform beam or the end beam, an adjusting screw is rotatably arranged on the upright base, the adjusting screw is arranged along the length direction corresponding to the first inclined ladder beam, the second inclined ladder beam, the platform beam or the end beam, the adjusting nut is threadably matched with the adjusting screw, the upright joint is arranged at the lower end of the upright, the upper part of the upright joint is hinged to the top end of the upright base, the lower end of the upright joint is provided with a long notch, the hinge axis of the upright joint and the upright base is perpendicular to the adjusting screw, positioning columns with the same axis are provided on both sides of the adjusting nut, the positioning column and the hinge axis of the upright joint and the upright base are arranged in the same direction, the lower part of the upright joint is provided with a through groove that can accommodate the adjusting nut, and the two positioning columns are respectively slidably matched with the long notches. When the adjusting screw is rotated, the adjusting nut can move along the adjusting screw, thereby driving the long notch to rotate, so that the vertical pole base and the corresponding vertical pole can be deflected. When the slope of the step ladder changes, the adjusting screw can be rotated to make the corresponding vertical pole vertical.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The present invention is an assembled staircase platform, the slope of the stairs can be adjusted to meet the use requirements of platforms at different heights, and the various components constituting the staircase platform are assembled on site, and have the characteristics of simple and efficient installation, safe and reliable structure, and low manufacturing and installation cost. Compared with the prior art, since a plurality of bracket assemblies that can adapt to the slope of the stairs are added to the lower side of the stairs for support, the utility model has a stronger load-bearing capacity and better reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the connection between the starting ramp, the slow ramp and the platform;

[0025] Figure 3 is a schematic diagram of the structure of the bracket assembly;

[0026] Figure 4 It is an exploded schematic diagram of the fixed connecting ear, the adjustable connecting ear and the lower U-shaped clip;

[0027] Figure 5 is an exploded schematic diagram of the angle adjustment device;

[0028] Figure 6 It is a schematic diagram of one side of the main end face tooth structure of the intermediate gear disc;

[0029] Figure 7 It is a schematic diagram of the structure of the side gear disc;

[0030] Figure 8 It is a base body structure of the starting base;

[0031] Fig. 9 is a schematic diagram of the end face of the first inclined ladder beam, the second inclined ladder beam or the platform beam;

[0032] Fig.10 It is an exploded schematic diagram of direct parts;

[0033] Fig.11 It is a schematic diagram of the structure of the guardrail assembly;

[0034] Fig.12 It is a structural diagram of the guardrail of the starting section;

[0035] Fig.13 It is a structural diagram of the crossbar seat;

[0036] Fig.14 It is a structural schematic diagram of the crossbar sleeve;

[0037] Fig.15 It is a structural schematic diagram of a bending connector;

[0038] Fig.16 is a schematic diagram of the structure of an adjustable pole seat assembly;

[0039] Fig.17 It is a structural diagram of the pole joint;

[0040] Fig.18 It is a structural diagram of the base of the pole;

[0041] Fig.19 It is a schematic diagram of the structure of the adjusting nut;

[0042] Fig. 20 is a structural schematic diagram of a step assembly;

[0043] Fig.21 It is a schematic diagram of the end face of the B-type pedal and the A-type pedal.

[0044] In the figure, 1. starting inclined ladder, 11. first inclined ladder beam, 12. starting base, 2. slow-step inclined ladder, 21. second inclined ladder beam, 22. direct component, 23. first connecting plate, 3. bracket assembly, 31. bracket body, 32. fixed connecting ear, 33. adjustable connecting ear, 34. supporting round tube, 35. upper U-shaped card, 36. lower U-shaped card, 4. platform, 41. platform beam, 42. end beam, 5. guardrail assembly, 51. starting section guardrail, 52. slow-step section guardrail, 53. side guardrail, 54. end guardrail, 55. first handrail surface tube, 56. second handrail surface tube, 57. third handrail surface tube, 58. fourth handrail surface Tube, 59. cross bar, 510. adjustable vertical pole seat assembly, 511. second vertical pole, 512. cross bar sleeve, 513. cross bar seat, 514. bending connector, 515. surface pipe seat, 516. adjusting screw, 517. adjusting nut, 518. vertical pole joint, 519. long notch, 520. positioning column, 521. vertical pole base, 6. angle adjustment device, 61. intermediate tooth plate, 62. side tooth plate, 63. main end face tooth structure, 64. fine end face tooth structure, 7. step assembly, 71. B-type pedal, 72. A-type pedal, 73. B-type pedal head, 74. A-type pedal head, 75. second connecting plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0046] The connection mentioned in the present utility model is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection, including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but is not limited to conventional detachable methods such as bolt connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can be found in the existing connection methods to achieve the function, and those skilled in the art can choose according to their needs. For example: choose welding connection for fixed connection and bolt connection for detachable connection.

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0048] Example: Figure 1 to Figure 21 As shown, an assembled staircase platform with adjustable slope comprises a starting inclined ladder 1, a slow-step inclined ladder 2 and a platform 4, wherein the starting inclined ladder 1, the slow-step inclined ladder 2 and the platform 4 are arranged in sequence from left to right, the slope of the slow-step inclined ladder 2 is smaller than the slope of the starting inclined ladder 1, the upper end of the starting inclined ladder 1 is connected to the lower end of the slow-step inclined ladder 2 via an angle adjustment device 6, the upper end of the slow-step inclined ladder 2 is connected to one end of the platform 4 via the angle adjustment device 6, the lower end of the starting inclined ladder 1 is supported on the ground, the platform 4 is supported on the ground via a bracket assembly 3, and the slow-step inclined ladder 2 is supported on the ground via a plurality of bracket assemblies 3;

[0049] The bracket assembly 3 includes a bracket body 31, fixed connecting ears 32 and adjustable connecting ears 33. A plurality of fixed connecting ears 32 are provided at the top of the bracket body 31. A plurality of adjustable connecting ears 33 slide along the length direction of the step-down ladder 2, or are fixedly connected to the step-down ladder 2 by bolts respectively. The plurality of fixed connecting ears 32 and the plurality of adjustable connecting ears 33 are hinged one by one. The hinge axes of the plurality of fixed connecting ears 32 are coaxial, and the axes are arranged perpendicular to the length direction of the step-down ladder 2.

[0050] The height of the support assembly 3 under the platform 4 of the utility model is made according to the demand, or adjusted on site by components such as pads. When the utility model is assembled on site, the platform 4 is first fixed to determine the actual height of the platform 4, and then the starting inclined ladder 1, the slow-step inclined ladder 2 and the platform 4 are connected in sequence. The actual slopes of the starting inclined ladder 1 and the slow-step inclined ladder 2 are determined according to the actual length and demand of the slow-step inclined ladder 2. When the actual slope of the slow-step inclined ladder 2 is determined, the prefabricated support assembly 3 for supporting under the slow-step inclined ladder 2 can be installed. Since the adjustable connecting ear 33 can slide along the length direction of the slow-step inclined ladder 2, the support position of the support assembly 3 under the slow-step inclined ladder 2 can be fine-tuned, so that the support assembly 3 can be reliably supported under the slow-step inclined ladder 2, avoiding the problem of difficulty in assembly caused by measurement error and assembly error when the prefabricated components are assembled on site. The fixed connecting ear 32 and the adjustable connecting ear 33 are in a hinged relationship, so that the support body 31 can also adapt to the slow-step inclined ladder 2 with different slopes while keeping it vertical.

[0051] The present invention is an assembled staircase platform, the slope of the stairs can be adjusted to meet the use requirements of platforms at different heights, and the various components constituting the staircase platform are assembled on site, with the characteristics of simple and efficient installation, safe and reliable structure, and low manufacturing and installation cost. Compared with the prior art, since multiple bracket assemblies 3 that can adapt to the slope of the stairs are added to the lower side of the stairs for support, the utility model has a stronger load-bearing capacity and better reliability.

[0052] The starting inclined ladder 1 includes two first inclined ladder beams 11, and a plurality of step assemblies 7 are arranged between the two first inclined ladder beams 11. The slow-moving inclined ladder 2 includes two second inclined ladder beams 21, and a plurality of step assemblies 7 are arranged between the two second inclined ladder beams 21. The platform 4 includes two platform beams 41, and the space between the two platform beams 41 is covered with dry step assemblies 7. The upper ends of the two first inclined ladder beams 11 are connected to the lower ends of the two second inclined ladder beams 21 in a one-to-one manner through an angle adjustment device 6. One end of the two platform beams 41 is connected to the upper ends of the two second inclined ladder beams 21 in a one-to-one manner through an angle adjustment device 6. The ends of the two platform beams 41 away from the slow-moving inclined ladder 2 are connected through an end beam 42. The first inclined ladder beam 11, the second inclined ladder beam 21, the platform beam 41 and the end beam 42 are made of aluminum alloy extrusion profiles of the same specification. The upper side surfaces of the first inclined ladder beam 11, the second inclined ladder beam 21, the platform beam 41 and the end beam 42 are all provided with a plurality of step assemblies 7 along their own length. The European standard aluminum profile 8# standard nut groove is set in the degree direction, and the side close to the step assembly 7 is defined as the inner side. The inner sides of the first inclined ladder beam 11, the second inclined ladder beam 21 and the platform beam 41 are provided with four European standard aluminum profile 8# standard nut grooves set along their own length directions, and the lower sides of the second inclined ladder beam 21 and the platform beam 41 are provided with European standard aluminum profile 8# standard nut grooves set along their own length directions. The outer sides of the first inclined ladder beam 11, the second inclined ladder beam 21, the platform beam 41 and the end beam 42 are flat and have no grooves. A number of first nuts are slidably set in the nut grooves on the inner sides of the first inclined ladder beam 11, the second inclined ladder beam 21 and the platform beam 41, and the two ends of the number of step assemblies 7 are respectively connected to the corresponding first nuts by bolts, and a number of second nuts are slidably set in the nut grooves on the lower sides of the second inclined ladder beam 21 and the platform beam 41, and a number of adjustable connecting ears 33 are connected to the corresponding second nuts by bolts.

[0053] The angle adjustment device 6 includes an intermediate toothed disc 61 and two side toothed discs 62. A main end face tooth structure 63 is provided on one end face of the intermediate toothed disc 61, and a fine end face tooth structure 64 is provided on the other end face of the intermediate toothed disc 61. The number of teeth of the fine end face tooth structure 64 is greater than the number of teeth of the main end face tooth structure 63. The main end face tooth structure 63 of the intermediate toothed disc 61 is coaxial with the fine end face tooth structure 64. The main end face tooth structure 63 and the fine end face tooth structure 64 are coaxially provided inside and outside on one end face of the side toothed disc 62. The intermediate toothed disc 61 is arranged between the two side toothed discs 62. The intermediate toothed disc 61 is meshed with the side toothed disc 62 on one side through the main end face tooth structure 63, and the intermediate toothed disc 61 is meshed with the side toothed disc 62 on the other side through the fine end face tooth structure 64. The first inclined ladder beam 11 and the second inclined ladder beam 21 are respectively connected to the two side toothed discs 62, or the second inclined ladder beam 21 and the platform beam 41 are respectively connected to the two side toothed discs 62. The number of teeth of the fine end face gear structure 64 is an integer multiple of the number of teeth of the main end face gear structure 63, and each main end face gear is aligned with the angle of several fine end face gears to facilitate angle adjustment. The angle adjustment device 6 of the utility model adjusts the angle by meshing the end face gears. Compared with the prior art, the end face gear has a larger force-bearing surface and better load-bearing capacity.

[0054] The number of teeth of the main end face tooth structure 63 is 16, and the number of teeth of the fine end face tooth structure 64 is 90.

[0055] The lower end of the first inclined ladder beam 11 is supported on the ground through a starting base 12. The starting base 12 is a convex pentagon. One end surface of the starting base 12 abuts against the ground and is connected by bolts. The other end surface of the starting base 12 abuts against the lower end surface of the first inclined ladder beam 11 and is connected by bolts.

[0056] The end face of the starting base 12 that abuts against the ground is defined as the first end face, and the end face of the starting base 12 that abuts against the first inclined ladder beam 11 is defined as the second end face. The angle between the first end face and the second end face is defined as the starting inclination angle. The starting base 12 has three configurations, and the starting inclination angles of the three configurations of the starting base 12 are 30°, 45° and 60° respectively. According to the needs of the site, the first inclined ladder beam 11 is supported on the ground by a starting base 12 of any configuration. The second end face is aligned with the outer contour of the lower end face of the first inclined ladder beam 11, and two through holes are provided on the second end face, and the through holes are adapted to the threaded holes on the lower end face of the first inclined ladder beam 11; the starting base 12 is not only used for starting and landing, but also can be used for special angle connection at other positions. The most commonly used configuration of the starting base 12 is a 45° inclined ladder inclination angle. The starting base 12 of the utility model has a simple structure and is easy to process.

[0057] The starting base 12 includes a base body and a cover plate. To reduce weight, the starting base 12 is a hollow structure with one end or both ends open. A plurality of reinforcing ribs are provided between the first end face and the second end face, and the opening of the base body is blocked by the cover plate.

[0058] The second inclined ladder beam 21 includes a plurality of ladder beam sections connected in sequence, and two adjacent ladder beam sections are butt-jointed by direct members 22. The direct members 22 include two L-shaped first connecting plates 23, and the two first connecting plates 23 are wedged into each other and connected to form a rectangular box. The direct members 22 are used to butt-join and extend the ladder beam sections, and can also be used to butt-join and extend the platform beam 41.

[0059] It also includes a guardrail assembly 5, wherein the guardrail assembly 5 includes a starting section guardrail 51, a slow-moving section guardrail 52, and a platform guardrail;

[0060] The starting section guardrail 51 includes two first vertical poles arranged at intervals, the middle parts of the two first vertical poles are connected by two cross bars 59, the tops of the two first vertical poles are connected by a first handrail surface tube 55, and the first vertical poles are fixed to the nut grooves on the upper side of the first inclined ladder beam 11 through an adjustable vertical pole seat assembly 510;

[0061] The slow-walking section guardrail 52 includes a plurality of second vertical poles 511 arranged at intervals, the middle parts of any two adjacent second vertical poles 511 are connected by two cross bars 59, the tops of the plurality of second vertical poles 511 are connected by a second handrail surface tube 56, and the second vertical poles 511 are fixed to the nut grooves on the upper side of the second inclined ladder beam 21 through adjustable vertical pole seat assemblies 510;

[0062] The platform 4 guardrail includes a side guardrail 53 and an end guardrail 54. The side guardrail 53 includes a plurality of third vertical poles arranged at intervals. The middle parts of any two adjacent third vertical poles are connected by two cross bars 59. The tops of the plurality of third vertical poles are connected by a third handrail surface tube 57. The third vertical poles are fixed to the nut groove on the upper side of the platform beam 41 through an adjustable vertical pole seat assembly 510. The end guardrail 54 includes two fourth vertical poles arranged at intervals. The middle parts of the two fourth vertical poles are connected by two cross bars 59. The tops of the two fourth vertical poles are connected by a fourth handrail surface tube 58. The fourth vertical pole is fixed to the nut groove on the upper side of the end beam 42 through an adjustable vertical pole seat assembly 510.

[0063] The step guardrail, the slow-step guardrail 52 and the side guardrail 53 are located on the same side of the stair platform, the first vertical pole, the second vertical pole 511, the third vertical pole and the fourth vertical pole are of the same height, the upper end of the first handrail surface tube 55 and the lower end of the second handrail surface tube 56 are hinged or fastened by a hinge screw, the upper end of the second handrail surface tube 56 and one end of the third handrail surface tube 57 are hinged or fastened by a hinge screw, the axial direction of the hinge screw is perpendicular to the length direction of the slow-step inclined ladder 2, and the other end of the third handrail surface tube 57 is connected to one end of the fourth handrail surface tube 58 by an elbow.

[0064] The adjustable vertical pole seat assembly 510 includes a vertical pole joint 518 and a vertical pole base 521, the vertical pole base 521 is arranged on the nut groove on the upper side of the first inclined ladder beam 11, the second inclined ladder beam 21, the platform beam 41 or the end beam 42, and an adjusting screw 516 is rotatably arranged on the vertical pole base 521. The adjusting screw 516 is arranged along the length direction of the first inclined ladder beam 11, the second inclined ladder beam 21, the platform beam 41 or the end beam 42, and the adjusting nut 517 is threadedly matched with the adjusting screw 516. The vertical pole joint 518 is arranged on the first vertical pole, the second vertical pole 511 or At the lower end of the third vertical pole, the upper part of the vertical pole joint 518 is hinged to the top end of the vertical pole base 521, and a long notch 519 is provided at the lower end of the vertical pole joint 518. The hinge axis of the vertical pole joint 518 and the vertical pole base 521 is perpendicular to the adjusting screw 516, and positioning columns 520 with the same axis are provided on both sides of the adjusting nut 517. The positioning columns 520 and the hinge axis of the vertical pole joint 518 and the vertical pole base 521 are arranged in the same direction, and a through groove that can accommodate the adjusting nut 517 is provided at the lower part of the vertical pole joint 518, and the two positioning columns 520 are respectively slidably matched with the long notch 519. When the adjusting screw 516 is rotated, the adjusting nut 517 can be moved along the adjusting screw 516, thereby driving the long notch 519 to rotate, so that the vertical pole base 521 and the corresponding first vertical pole, second vertical pole 511 or the third vertical pole can be deflected. When the slope of the slowly inclined ladder 2 changes, the adjusting screw 516 is rotated to make the corresponding first vertical pole, second vertical pole 511 or the third vertical pole vertical.

[0065] The pedal assembly includes an A-type pedal 72, a B-type pedal 71, an A-type pedal head 74, a B-type pedal head 73, and a second connecting plate 75, wherein the A-type pedal 72 and the B-type pedal 71 are aluminum alloy profiles, wherein the width of the A-type pedal 72 is a, the width of the B-type pedal 71 is b, and the ratio of a to b is 2:3, so that the A-type pedal 72 and the B-type pedal 71 are easier to be combined into a suitable width, and the two ends of the A-type pedal 72 are respectively provided with an A-type pedal head 74, and the two ends of the B-type pedal 71 are respectively provided with a B-type pedal head 73, and the A-type pedal head 74 and the B-type pedal The cross-section of the head 73 is L-shaped. The long sides of the A-type pedal head 74 and the B-type pedal head 73 are connected to the corresponding end faces of the A-type pedal 72 or the B-type pedal 71. The short sides of the A-type pedal head 74 and the B-type pedal head 73 are hung on the second connecting plate 75. The second connecting plate 75 is provided with arranged oblong holes and a group of spaced threaded holes. The length of the second connecting plate 75 can be selected in multiple ways. The length formula of the second connecting plate 75 can be expressed as L=m*a+n*b, where m and n are both natural numbers.

[0066] The bracket body 31 is a T-shaped welded frame or a gate-shaped welded frame, which serves as the ground support of the stair platform, or the ground column feet of the equipment itself are used, and square tubes are welded or bundled as the support of the stair platform. The lower end of the bracket body 31 is provided with a ground plate.

[0067] A supporting circular tube 34 is welded on the adjustable connecting ear 33, and the supporting circular tube 34 is arranged along the length direction of the vertical step-inclined ladder 2. The fixed connecting ear 32 is arranged on the upper U-shaped card 35, and the upper U-shaped card 35 and the lower U-shaped card 36 are clamped on the top crossbeam of the bracket body 31. The fixed connecting ear 32 is provided with three key holes, and the supporting circular tube 34 is connected to any waist-shaped hole by bolts or pins. The adjustable connecting ear 33 can rotate and tilt a certain angle around the axis of the supporting circular tube 34. Due to size restrictions, the middle waist circular hole is suitable for the connection of the step-inclined ladder 2 with a small inclination angle, and the left and right waist circular holes are suitable for the connection of the step-inclined ladder 2 with a large inclination angle.

[0068] Fig.12A schematic diagram of the structure of the starting section guardrail 51 is given. The structures of the slow-moving section guardrail 52, the side guardrail 53 and the end guardrail 54 are similar to those of the starting section guardrail 51. The first vertical pole, the second vertical pole 511 and the third vertical pole have the same structure. The two ends of the cross bar 59 are respectively provided with cross bar sleeves 512, and the middle of the first vertical pole is provided with two cross bar seats 513. The cross bar 59 is connected to the cross bar seat 513 on the corresponding first vertical pole through the cross bar sleeve 512. The top of the first vertical pole is connected to the first handrail surface tube 55, the second handrail surface tube 56, the first handrail surface tube 57 and the second handrail surface tube 58 through the surface tube seat 515. The third handrail surface tube 57 or the fourth handrail surface tube 58 is connected, and the two ends of the second handrail surface tube 56 are respectively provided with bending connectors 514, and the first handrail surface tube 55 and the third handrail surface tube 57 are also provided with bending connectors 514 at one end close to the second handrail surface tube 56. The bending connector 514 of the first handrail surface tube 55 and the bending connector 514 at one end of the second handrail surface tube 56 are hinged or fastened by bolts, and the bending connector 514 of the third handrail surface tube 57 and the bending connector 514 at the other end of the second handrail surface tube 56 are hinged or fastened by bolts.

[0069] The first vertical pole, the second vertical pole 511, the third vertical pole, the cross bar 59, the first handrail surface tube 55, the second handrail surface tube 56, the third handrail surface tube 57 or the fourth handrail surface tube 58 are all circular tubes, and can also be profiles of other shapes, such as rectangular tubes, square tubes, oblate tubes, etc.

[0070] The above embodiments are merely illustrative of the present invention and do not limit its protection scope. Those skilled in the art may also make partial changes thereto, which are within the protection scope of the present invention as long as they do not exceed the spirit of the present invention.

Claims

1. An assembled staircase platform with adjustable slope, comprising a starting inclined ladder (1), a slow-step inclined ladder (2) and a platform (4), wherein the slope of the slow-step inclined ladder (2) is smaller than the slope of the starting inclined ladder (1), the upper end of the starting inclined ladder (1) is connected to the lower end of the slow-step inclined ladder (2) via an angle adjustment device (6), the upper end of the slow-step inclined ladder (2) and one end of the platform (4) are connected via the angle adjustment device (6), the lower end of the starting inclined ladder (1) is supported on the ground, and the platform (4) is supported on the ground via a bracket assembly (3), characterized in that: The step-down inclined ladder (2) is supported on the ground by a plurality of bracket assemblies (3); The support assembly (3) comprises a support body (31), fixed connecting ears (32) and adjustable connecting ears (33). A plurality of fixed connecting ears (32) are arranged at the top of the support body (31). The plurality of adjustable connecting ears (33) slide along the length direction of the escalator (2) or are fixedly connected to the escalator (2) by bolts. The plurality of fixed connecting ears (32) and the plurality of adjustable connecting ears (33) are hinged one by one. The hinge axes of the plurality of fixed connecting ears (32) are coaxial, and the axes are arranged perpendicular to the length direction of the escalator (2).

2. The assembled staircase platform with adjustable slope according to claim 1, characterized in that: The starting inclined ladder (1) comprises two first inclined ladder beams (11), and a plurality of step assemblies (7) are arranged between the two first inclined ladder beams (11); the slow-step inclined ladder (2) comprises two second inclined ladder beams (21), and a plurality of step assemblies (7) are arranged between the two second inclined ladder beams (21); the platform (4) comprises two platform beams (41), and the space between the two platform beams (41) is covered with dry step assemblies (7); the upper ends of the two first inclined ladder beams (11) are connected to the lower ends of the two second inclined ladder beams (21) in a one-to-one correspondence through an angle adjustment device (6); one end of the two platform beams (41) is connected to the upper ends of the two second inclined ladder beams (21) in a one-to-one correspondence through the angle adjustment device (6); the ends of the two platform beams (41) away from the slow-step inclined ladder (2) are connected through an end beam (42); the first inclined ladder beams (11) and the second inclined ladder beams ( The upper side surfaces of the first inclined ladder beam (11), the second inclined ladder beam (21) and the end beam (42) are all provided with nut grooves arranged along their length directions; the inner side surfaces of the first inclined ladder beam (11), the second inclined ladder beam (21) and the platform beam (41) are all provided with four nut grooves arranged along their length directions; the lower side surfaces of the second inclined ladder beam (21) and the platform beam (41) are all provided with nut grooves arranged along their length directions; a plurality of first nuts are slidably arranged in the nut grooves on the inner side surfaces of the first inclined ladder beam (11), the second inclined ladder beam (21) and the platform beam (41); the two ends of a plurality of step assemblies (7) are respectively connected to the corresponding first nuts by bolts; a plurality of second nuts are slidably arranged in the nut grooves on the lower side surfaces of the second inclined ladder beam (21) and the platform beam (41); and a plurality of adjustable connecting ears (33) are connected to the corresponding second nuts by bolts.

3. The slope-adjustable assembled staircase platform according to claim 2, characterized in that: The angle adjustment device (6) comprises an intermediate toothed disc (61) and two side toothed discs (62); a main end face tooth structure (63) is provided on one end face of the intermediate toothed disc (61); a fine end face tooth structure (64) is provided on the other end face of the intermediate toothed disc (61); the number of teeth of the fine end face tooth structure (64) is greater than the number of teeth of the main end face tooth structure (63); the main end face tooth structure (63) of the intermediate toothed disc (61) is coaxial with the fine end face tooth structure (64); and the main end face tooth structure (63) is coaxially provided inside and outside on one end face of the side toothed disc (62). ) and a fine end face tooth structure (64), the middle toothed disc (61) is arranged between the two side toothed discs (62), the middle toothed disc (61) is meshed with the side toothed disc (62) on one side through the main end face tooth structure (63), the middle toothed disc (61) is meshed with the side toothed disc (62) on the other side through the fine end face tooth structure (64), the first inclined ladder beam (11) and the second inclined ladder beam (21) are respectively connected to the two side toothed discs (62), or the second inclined ladder beam (21) and the platform beam (41) are respectively connected to the two side toothed discs (62).

4. The slope-adjustable assembled staircase platform according to claim 3, characterized in that: The number of teeth of the main end face tooth structure (63) is 16, and the number of teeth of the fine end face tooth structure (64) is 90.

5. The assembled staircase platform with adjustable slope according to claim 2, characterized in that: The lower end of the first inclined ladder beam (11) is supported on the ground through a starting base (12); the starting base (12) is in a convex pentagonal shape; one end surface of the starting base (12) abuts against the ground and is connected by bolts; the other end surface of the starting base (12) abuts against the lower end surface of the first inclined ladder beam (11) and is connected by bolts.

6. The assembled staircase platform with adjustable slope according to claim 5, characterized in that: The end face of the starting base (12) that abuts against the ground is defined as a first end face, and the end face that abuts against the first inclined ladder beam (11) is defined as a second end face. The angle between the first end face and the second end face is defined as a starting inclination angle. The starting base (12) has three configurations. The starting inclination angles of the starting bases (12) of the three configurations are 30°, 45° and 60° respectively. The first inclined ladder beam (11) is supported on the ground by a starting base (12) of any configuration.

7. The assembled staircase platform with adjustable slope according to claim 6, characterized in that: The starting base (12) comprises a base body and a cover plate. The starting base (12) is a hollow structure with one end open or both ends open. A plurality of reinforcing ribs are provided between the first end face and the second end face. The opening of the base body is sealed by the cover plate.

8. The slope-adjustable assembled staircase platform according to claim 2, characterized in that: The second inclined ladder beam (21) comprises a plurality of ladder beam sections connected in sequence, and two adjacent ladder beam sections are butt-jointed via a direct component (22). The direct component (22) comprises two L-shaped first connecting plates (23), and the two first connecting plates (23) are wedged into each other and connected in reverse to form a rectangular box.

9. The assembled staircase platform with adjustable slope according to any one of claims 2 to 8, characterized in that: It also includes a guardrail assembly (5), wherein the guardrail assembly (5) includes a starting section guardrail (51), a slow-moving section guardrail (52) and a platform guardrail; The starting section guardrail (51) comprises two first vertical poles arranged at intervals, the middle parts of the two first vertical poles are connected by two cross bars (59), the tops of the two first vertical poles are connected by a first handrail surface tube (55), and the first vertical poles are fixed to the nut grooves on the upper side of the first inclined ladder beam (11) through an adjustable vertical pole seat assembly (510); The slow-walking section guardrail (52) comprises a plurality of second vertical poles (511) arranged at intervals, the middle parts of any two adjacent second vertical poles (511) are connected by two cross bars (59), the tops of the plurality of second vertical poles (511) are connected by a second handrail surface tube (56), and the second vertical poles (511) are fixed to the nut grooves on the upper side of the second inclined ladder beam (21) by means of an adjustable vertical pole seat assembly (510); The platform (4) guardrail comprises a side guardrail (53) and an end guardrail (54), the side guardrail (53) comprises a plurality of third upright poles arranged at intervals, the middle parts of any two adjacent third upright poles are connected by two cross bars (59), the tops of the plurality of third upright poles are connected by a third handrail surface tube (57), the third upright poles are fixed to the nut groove on the upper side of the platform beam (41) by an adjustable upright pole seat assembly (510), the end guardrail (54) comprises two fourth upright poles arranged at intervals, the middle parts of the two fourth upright poles are connected by two cross bars (59), the tops of the two fourth upright poles are connected by a fourth handrail surface tube (58), and the fourth upright poles are fixed to the nut groove on the upper side of the end beam (42) by an adjustable upright pole seat assembly (510); The step guardrail, the slow-step guardrail (52) and the side guardrail (53) are located on the same side of the stair platform; the first vertical pole, the second vertical pole (511), the third vertical pole and the fourth vertical pole are of the same height; the upper end of the first handrail surface tube (55) is hinged or fastened to the lower end of the second handrail surface tube (56) by a hinge screw; the upper end of the second handrail surface tube (56) is hinged or fastened to one end of the third handrail surface tube (57) by a hinge screw; the axial direction of the hinge screw is perpendicular to the length direction of the slow-step inclined ladder (2); the other end of the third handrail surface tube (57) is connected to one end of the fourth handrail surface tube (58) by an elbow.

10. The assembled staircase platform with adjustable slope according to claim 9, characterized in that: The adjustable vertical pole seat assembly (510) comprises a vertical pole joint (518) and a vertical pole base (521). The vertical pole base (521) is arranged on a nut groove on the upper side of the first inclined ladder beam (11), the second inclined ladder beam (21), the platform beam (41) or the end beam (42). An adjusting screw rod (516) is rotatably arranged on the vertical pole base (521). The adjusting screw rod (516) is arranged along the length direction of the corresponding first inclined ladder beam (11), the second inclined ladder beam (21), the platform beam (41) or the end beam (42). The adjusting nut (517) is threadedly matched with the adjusting screw rod (516). The vertical pole joint (518) is arranged at the bottom of the vertical pole. The upper part of the vertical pole joint (518) is hinged to the top end of the vertical pole base (521), and the lower end of the vertical pole joint (518) is provided with a long notch (519). The hinge axis of the vertical pole joint (518) and the vertical pole base (521) is perpendicular to the adjusting screw (516). Positioning columns (520) with the same axis are provided on both sides of the adjusting nut (517). The positioning columns (520) and the hinge axis of the vertical pole joint (518) and the vertical pole base (521) are arranged in the same direction. The lower part of the vertical pole joint (518) is provided with a through groove that can accommodate the adjusting nut (517), and the two positioning columns (520) are respectively slidably matched with the long notch (519).

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