Building spiral ladder

Abstract

The utility model discloses a building spiral ladder which comprises a top side support, a lower side support is arranged on the lower side of the top side support, a center rod is fixedly arranged between the top side support and the lower side support, and the building spiral ladder is characterized in that a plurality of step ladders and platform ladders which are upwards and gradually stacked in a staggered mode to form a spiral shape are arranged on the outer surface of the center rod. A plurality of connecting rods are arranged between the top side support and the lower side support, a plurality of lower side rods are further arranged on the upper side of the lower side support, a plurality of upper side rods are further arranged on the lower side of the top side support, and the step ladder is arranged on the outer surfaces of the center rod, the connecting rods, the upper side rods and the lower side rods in a sleeving mode. The outer surfaces of the two adjacent connecting rods are sleeved with the platform ladders, and the lower side rod penetrates through the platform ladder on the lowermost side.

Description

TECHNICAL FIELD

[0001] The utility model relates to building spiral staircase technical field, specifically a building spiral staircase. BACKGROUND

[0002] The common building spiral body adopts the step ladder of spiral type arranged on single center pole, and the steps between the step ladders abut, form the step ladder structure of spiral upward distribution. But single center pole causes the structural strength of the building spiral staircase of single center pole to be poor because of poor supporting force. After a large number of uses, it is easy to appear skew or looseness etc. For this, people have carried out a lot of research to improve the structural strength of building spiral staircase. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problem that the building spiral staircase can solve the problem in the prior art.

[0004] The utility model is through following technical scheme to realize: a building spiral staircase of the utility model, including top side support, the lower side of top side support is provided with lower side support, the top side support and lower side support between fixedly set with center pole, its characterized in that, the outer surface of center pole is provided with a plurality of gradually staggered and stacked upwards and form the step ladder and platform ladder of spiral shape, a plurality of connecting rods are arranged between the top side support and the lower side support, a plurality of lower side rods are further arranged on the lower side support, a plurality of upper side rods are further arranged on the lower side of top side support, the step ladder is sleeved on the outer surface of center pole, connecting rod, upper side rod and lower side rod, the platform ladder is sleeved on the outer surface of adjacent two connecting rods, the lower side rod passes through the lowermost platform ladder.

[0005] Further technical scheme, a plurality of connecting rods, lower side rods and upper side rods are annularly distributed between the top side support and the lower side support.

[0006] Further technical scheme, the top side of the uppermost platform ladder is provided with a guardrail assembly, the guardrail assembly includes two rail fixed cylinders, a plurality of rails are fixedly arranged between the rail fixed cylinders, the rail fixed cylinder is arranged on the upper side of platform ladder, and the rail fixed cylinder is sleeved on the outer surfaces of the center pole and the connecting rod.

[0007] Further technical scheme, the connecting rod is connected and fixed with the top side support and the lower side support, the lower side rod is connected and fixed with the lower side support, and the upper side rod is connected and fixed with the top side support.

[0008] Further technical scheme, the bottom of step ladder is provided with first bottom plate, and the first bottom plate abuts with the top surface of step ladder or the top surface of platform ladder below.

[0009] A further technical solution is that a first outer sleeve and a first inner sleeve are also provided in the step ladder, the first inner sleeve is sleeved on the outer surface of the center rod and fixed, the first outer sleeve is sleeved on the outer surfaces of the connecting rod, the upper rod and the lower rod and fixed, and the first outer sleeve is fixed to the connecting rod, the upper rod and the lower rod.

[0010] According to a further technical solution, a second bottom plate is provided at the bottom of the platform ladder, and the second bottom plate is used to abut against the upper end surface of the step ladder below it.

[0011] A further technical solution is that a second inner sleeve and a second outer sleeve are also provided in the platform ladder, the second inner sleeve is sleeved on the outer surface of the center rod and fixed, the second outer sleeve is sleeved on the outer surface of the lower rod and the platform ladder and fixed, the second outer sleeve is fixed to the connecting rod, and the second outer sleeve is fixed to the lower rod.

[0012] A further technical solution is that when multiple step ladders and platform ladders are sleeved on the outer surface of the center rod, the first base plates on the multiple step ladders are against the upper end surfaces of the step ladders on their lower sides, and the second base plates are against the upper end surfaces of the step ladders on their lower sides.

[0013] According to a further technical solution, sleeves are provided on the outer surfaces of the connecting rod and the lower rod.

[0014] The beneficial effects of the present invention are as follows: 1. The step ladder and the platform ladder are spirally distributed around the central rod and counteract each other, and then a top side bracket and a lower side bracket are respectively provided on the upper and lower sides, and a connecting rod is provided between the top side bracket and the lower side bracket, and the connecting rod connects the step ladder and the platform ladder, and the upper side rod on the lower side of the top side bracket is connected to the platform ladder, and the lower side rod on the upper side of the lower side bracket is connected to the platform ladder on the bottom side. Compared with the prior art, a cage-type structure is formed, which avoids the poor firmness of using a single central rod to connect the step ladder and the platform ladder, and the provision of the upper side rod and the lower side rod can facilitate people to step onto the step ladder and leave from one side of the platform ladder.

[0015] 2. A first inner sleeve, a first outer sleeve, a second inner sleeve and a second outer sleeve are provided to connect and fix the first inner sleeve and the second inner sleeve to the center rod, the first outer sleeve is used to connect and fix to the connecting rod, the upper rod and the lower rod, and the second outer sleeve is used to connect and fix to the connecting rod and the lower rod, thereby further improving the connection firmness of the step ladder and the platform ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of a building spiral staircase of the present utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the middle ladder when viewed from above;

[0019] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0020] Figure 4 for Figure 1 Schematic diagram after removing the platform ladder and step ladder;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the medium step ladder;

[0022] Figure 6 for Figure 5 Schematic diagram of the upper structure of the middle step ladder;

[0023] Figure 7 for Figure 1 Schematic diagram of the structure of the middle platform ladder;

[0024] Figure 8 for Figure 7 Schematic diagram of the structure of the middle platform ladder when viewed from above;

[0025] In the figure, the top side bracket 11, the center rod 12, the upper side rod 13, the connecting rod 14, the step ladder 16, the lower side bracket 19, the lower side rod 21, the platform ladder 22, the railing 23, the railing fixing tube 24, the sleeve 31, the first outer sleeve 32, the first inner sleeve 33, the first base plate 42, the second base plate 51, the second inner sleeve 52, and the second outer sleeve 54. DETAILED DESCRIPTION

[0026] like Figures 1-8 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1The up, down, left, right, front and back directions of the projection relationship are consistent. The utility model is a building spiral staircase, including a top side bracket 11, a lower side bracket 19 is arranged on the lower side of the top side bracket 11, a center rod 12 is fixedly arranged between the middle part of the top side bracket 11 and the lower side bracket 19, and the outer surface of the center rod 12 is provided with a plurality of step ladders 16 and platform ladders 22 that are gradually staggered and stacked upward to form a spiral shape. A plurality of connecting rods 14 are arranged between the top side bracket 11 and the lower side bracket 19, and a plurality of lower side rods 21 are also arranged on the upper side of the lower side bracket 19. A plurality of upper side rods 13 are also provided on the lower side of the top side bracket 11. The step ladder 16 is sleeved on the outer surfaces of the center rod 12, the connecting rod 14, the upper side rod 13 and the lower side rod 21. The platform ladder 22 is sleeved on the outer surfaces of the two adjacent connecting rods 14, and the lower side rod 21 passes through the lowest platform ladder 22 and is fixed thereto.

[0027] Advantageously, a plurality of connecting rods 14 , lower rods 21 and upper rods 13 are distributed in a ring shape between the top support 11 and the lower support 19 .

[0028] Advantageously, a guardrail assembly is provided on the top side of the uppermost platform ladder 22 , and the guardrail assembly includes two railing fixing cylinders 24 , between which a plurality of railings 23 are fixedly provided, and the railing fixing cylinders 24 are provided on the upper side of the platform ladder 22 .

[0029] Advantageously, the railing fixing tube 24 is sleeved on the outer surfaces of the central rod 12 and the connecting rod 14 .

[0030] Advantageously, the connecting rod 14 is connected and fixed to the top side bracket 11 and the lower side bracket 19, the lower side rod 21 is connected and fixed to the lower side bracket 19, and the upper side rod 13 is connected and fixed to the top side bracket 11. The connection and fixation method can be adopted by arranging fasteners, such as bolts, in the top side bracket 11 and the lower side bracket 19, and then using the bolts to pass through the top side bracket 11 and the lower side bracket 19 and then threadedly connect with the connecting rod 14, the lower side rod 21 and the upper side rod 13 to achieve fixation.

[0031] Advantageously, a first bottom plate 42 is provided at the bottom of the step ladder 16 , and the first bottom plate 42 is used to abut against the top surface of the step ladder 16 or the top surface of the platform ladder 22 below it.

[0032] Beneficially, the first outer sleeve 32 and the first inner sleeve 33 are further arranged in the step ladder 16, the first inner sleeve 33 is sleeved on the outer surface of the center rod 12 and fixed, the first outer sleeve 32 is sleeved on the outer surface of the connecting rod 14, the upper side rod 13 and the lower side rod 21 and fixed, the bolt and the nut can be arranged on the outer circumferential surface of the first outer sleeve 32 and the first inner sleeve 33, the bolt is passed through the first outer sleeve 32, the first inner sleeve 33, the center rod 12, the connecting rod 14, the upper side rod 13 and the lower side rod 21, and then the nut is locked with the bolt, so as to realize the fixation of the first inner sleeve 33 and the center rod 12, and the fixation of the first outer sleeve 32 and the connecting rod 14, the upper side rod 13 and the lower side rod 21.

[0033] Beneficially, the second bottom plate 51 is arranged at the bottom of the platform ladder 22, and is used to abut the upper end surface of the step ladder 16 below.

[0034] Beneficially, the second inner sleeve 52 and the second outer sleeve 54 are further arranged in the platform ladder 22, the second inner sleeve 52 is sleeved on the outer surface of the center rod 12 and fixed, the second outer sleeve 54 is sleeved on the outer surface of the lower side rod 21 and the platform ladder 22 and fixed, the bolt and the nut can be arranged on the outer circumferential surface of the second outer sleeve 54 and the second inner sleeve 52, the bolt is passed through the second outer sleeve 54, the second inner sleeve 52, the connecting rod 14, the lower side rod 21 and the center rod 12, and then the nut is locked with the bolt, so as to realize the fixation of the second inner sleeve 52 and the center rod 12, the fixation of the second outer sleeve 54 and the connecting rod 14, and the fixation of the second outer sleeve 54 and the lower side rod 21.

[0035] Beneficially, when the plurality of step ladders 16 and the platform ladder 22 are sleeved on the outer surface of the center rod 12, the first bottom plate 42 on the plurality of step ladders 16 abuts the upper end surface of the step ladder 16 below, and the second bottom plate 51 abuts the upper end surface of the step ladder 16 below.

[0036] Beneficially, the outer surface of the connecting rod 14 and the lower side rod 21 can further be sleeved with the sleeve 31, and in the first layer of spiral step ladders 16, the sleeve 31 abuts between the first outer sleeve 32 and the lower side bracket 19.

[0037] The step ladder 16 is connected with a platform ladder 22 after one circle of spiral distribution upwards, and the step ladder 16 is continuously distributed in a spiral after the platform ladder 22 upwards, and then connected with a platform ladder 22.

[0038] In the starting position of the first circle of step ladders 16, the upper step ladders 16 are all sleeved on the outer surface of the upper side rod 13.

[0039] The bottom of the platform ladder 22 on the first floor is fixedly connected to the lower side rod 21, and the bottom of the platform ladder 22 on the second floor is not fixedly connected to the platform ladder 22 because a passage needs to be set on the platform ladder 22 on the second floor to facilitate people to enter the area on the second floor.

[0040] The first bottom plate 42 and the upper end surface of the step ladder 16 abut against each other to form a relatively continuous spiral staircase structure. The second bottom plate 51 at the bottom of the platform ladder 22 abuts against the upper end surface of the step ladder 16, so that a passage structure is formed on the spiral staircase structure for people to rest or enter the floor.

[0041] When installing the spiral staircase, first place the lower side bracket 19, install the center rod 12 on the lower side bracket 19, then spirally distribute the step ladder 16 and the platform ladder 22 on the outer surface of the center rod 12, and make the upper and lower step ladders 16 and the platform ladder 22 be set against each other, then install the connecting rod 14, the upper side rod 13, the lower side rod 21 and the railing fixing tube 24, make the connecting rod 14 pass through the step ladder 16, the upper side rod 13 pass through the step ladder 16, the connecting rod 14 pass through the platform ladder 22, the lower side rod 21 pass through the platform ladder 22, and fix them together, then install the top side bracket 11, connect and fix the top side bracket 11 with the connecting rod 14 and the upper side rod 13, and then connect and fix the connecting rod 14, the lower side rod 21 and the lower side bracket 19 to form a complete spiral staircase structure.

[0042] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention; therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A spiral staircase for a building, comprising a top support (11), a lower support (19) being provided on the lower side of the top support (11), a center rod (12) being fixedly provided between the top support (11) and the lower support (19), characterized in that: The outer surface of the center rod (12) is provided with a plurality of step ladders (16) and platform ladders (22) which are gradually staggered and stacked upward to form a spiral shape; a plurality of connecting rods (14) are provided between the top side bracket (11) and the lower side bracket (19); a plurality of lower side rods (21) are also provided on the upper side of the lower side bracket (19); a plurality of upper side rods (13) are also provided on the lower side of the top side bracket (11); the step ladder (16) is sleeved on the outer surfaces of the center rod (12), the connecting rod (14), the upper side rod (13) and the lower side rod (21); the platform ladder (22) is sleeved on the outer surfaces of two adjacent connecting rods (14); and the lower side rod (21) passes through the lowest platform ladder (22).

2. A spiral staircase according to claim 1, characterized in that: The plurality of connecting rods (14), lower side rods (21) and upper side rods (13) are distributed in a ring shape between the top side bracket (11) and the lower side bracket (19).

3. The spiral staircase according to claim 1, characterized in that: A guardrail assembly is provided on the top side of the uppermost platform ladder (22), and the guardrail assembly includes two railing fixing cylinders (24), a plurality of railings (23) are fixedly provided between the railing fixing cylinders (24), the railing fixing cylinders (24) are provided on the upper side of the platform ladder (22), and the railing fixing cylinders (24) are sleeved on the outer surfaces of the center rod (12) and the connecting rod (14).

4. The spiral staircase according to claim 1, characterized in that: The connecting rod (14) is connected and fixed to the top bracket (11) and the lower bracket (19), the lower rod (21) is connected and fixed to the lower bracket (19), and the upper rod (13) is connected and fixed to the top bracket (11).

5. A spiral staircase according to any one of claims 1 to 4, characterized in that: A first bottom plate (42) is provided at the bottom of the step ladder (16), and the first bottom plate (42) abuts against the top surface of the step ladder (16) or the top surface of the platform ladder (22) below it.

6. The spiral staircase according to claim 5, characterized in that: The step ladder (16) is further provided with a first outer sleeve (32) and a first inner sleeve (33), wherein the first inner sleeve (33) is sleeved on the outer surface of the center rod (12) and fixed, and the first outer sleeve (32) is sleeved on the outer surfaces of the connecting rod (14), the upper rod (13) and the lower rod (21) and fixed, and the first outer sleeve (32) is fixed to the connecting rod (14), the upper rod (13) and the lower rod (21).

7. A spiral staircase according to any one of claims 1 to 4, characterized in that: A second bottom plate (51) is provided at the bottom of the platform ladder (22), and the second bottom plate (51) is used to abut against the upper end surface of the step ladder (16) below it.

8. The spiral staircase according to claim 7, characterized in that: A second inner sleeve (52) and a second outer sleeve (54) are also provided in the platform ladder (22); the second inner sleeve (52) is sleeved on the outer surface of the center rod (12) and fixed; the second outer sleeve (54) is sleeved on the outer surfaces of the lower rod (21) and the platform ladder (22) and fixed; the second outer sleeve (54) is fixed to the connecting rod (14); and the second outer sleeve (54) is fixed to the lower rod (21).

9. The spiral staircase according to claim 1, characterized in that: The outer surfaces of the connecting rod (14) and the lower side rod (21) are sleeved with a sleeve (31).

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