Mobile stair for house building project construction

Abstract

The utility model discloses a mobile stair for housing construction engineering construction, and relates to the technical field of construction stairs. Comprising an upper support, a lower support, a supporting frame connected between the upper support and the lower support, a stepping assembly arranged on the supporting frame and a bearing supporting component arranged below the upper support and used for adjusting the inclination angle of the supporting frame. The prefabricated construction movable staircase is reasonable in design, most of existing prefabricated construction movable staircases are large in size and difficult to apply to the scene, the size of the staircase is reduced according to the scheme, pulleys on the lower portion of the movable staircase are omitted, and a simple mode is adopted for a staircase supporting frame. The gradient of the movable stair can be adjusted so as to adapt to various application scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of construction stairs, and more specifically to the technical field of movable stairs for building construction projects. Background Art

[0002] During the construction of a building, due to geographical constraints, it is usually necessary to use portable stairs that can be moved and disassembled for construction workers, supervisors, safety technicians and other on-site workers to go up and down. Existing patents disclose the following technologies:

[0003] The patent with the publication number CN114922422A and the patent name "A method for constructing a movable and fixed stair formwork" discloses the following contents: A method for constructing a movable and fixed stair formwork, which relates to the field of stair formwork, and the steps for installing the stair formwork are as follows: Step 1: Selection of workpieces; Select appropriate bottom formwork, side formwork, horizontal formwork and vertical formwork according to the floor height and the width of the stairs to be cast, Step 2: Installation of the bottom formwork; Fix the bottom formwork to the bottom surface of the floor slab through the screws reserved at the edge of the bottom surface of the floor slab, and at this time, the other end of the bottom formwork is in contact with the ground. The present invention combines the bottom formwork and the side formwork set according to the specified floor height, and then fixes the horizontal formwork and the vertical formwork on the side formwork, leaving only the top surface of the side formwork open. When pouring, concrete can be prepared directly on the floor slab, and poured through the opening on the top surface of the side formwork, and the work intensity is low.

[0004] The patent with the publication number CN212671301U and the patent name "A mobile construction safety steel staircase for prefabricated building staircases" discloses the following content: A mobile construction safety steel staircase for prefabricated building staircases belongs to the field of building construction technology. The utility model is connected to a load-bearing beam on one side of the bottom of the main structure, and the load-bearing beam is supported on the N-1 layer structural plate. The other side of the bottom of the main structure opposite to the load-bearing beam is connected to a load-bearing column, and the load-bearing column is supported on the middle structural plate between the N-2 layer structural plate and the N-1 layer structural plate or supported at the connection node of the two prefabricated folding stairs between the N-1 layer structural plate and the N-2 layer structural plate. By setting the load-bearing beam and the load-bearing column, the steel staircase only occupies the space above the prefabricated folding staircase, and does not occupy the space of the structural plate. The steel staircase of the utility model does not need to be assembled or disassembled on site, which significantly improves construction efficiency, saves labor, and reduces construction costs.

[0005] The above-mentioned patents and existing prefabricated construction movable stairs are mostly large in size and difficult to use in this scenario. Utility Model Content

[0006] The purpose of the utility model is to solve the above technical problems and provide a movable staircase for building construction.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] The present invention provides a movable staircase for building construction, comprising an upper bracket, a lower bracket, a support frame connected between the upper bracket and the lower bracket, a step assembly arranged on the support frame, and a load-bearing support member arranged below the upper bracket and used for adjusting the inclination angle of the support frame.

[0009] Specifically, this solution focuses on the stability, portability and practicality of the stairs, and its application scenarios are mainly in the part of the building construction site where there is no staircase between the poured floors and the unpoured floors. The existing way of going up and down in this part generally uses a mobile ladder, but the ladder has a high risk factor and is inconvenient to go up and down, so this invention is intended to replace this mobile ladder.

[0010] Most of the existing prefabricated construction mobile stairs are too large to be used in this scenario. This solution reduces the volume of the stairs, removes the pulley at the bottom of the mobile stairs, and adopts a simple method for the stair support frame. The mobile stairs in this solution can adjust the inclination to adapt to various application scenarios. The material of the mobile stairs in this solution is galvanized steel Q235.

[0011] In one embodiment, the load-bearing support member includes two telescopic load-bearing units symmetrically arranged on the front and rear sides of the upper bracket, the bottom of each telescopic load-bearing unit is in contact with the ground, and the top of each telescopic load-bearing unit is hinged to the upper bracket.

[0012] In one embodiment, the telescopic load-bearing unit includes a base, a telescopic rod inserted into the base, and a top of the telescopic rod is hinged to the upper bracket.

[0013] Specifically, the telescopic load-bearing unit of the present invention is mainly a telescopic device composed of a telescopic rod and a base. The inclination of the stairs can be adjusted by adjusting the height of the telescopic rod, and the base is a square sleeve.

[0014] In one embodiment, the step assembly includes a plurality of step units arranged in sequence, a resting platform arranged at the end of the topmost step unit, and a bottom step arranged at the end of the bottommost step unit.

[0015] In one embodiment, each of the step units includes a horizontal step member and a vertical connecting member, the top of the vertical connecting member is connected to the horizontal step member via a bolt assembly, and the bottom of the vertical connecting member is connected to the horizontal step member of another adjacent step unit.

[0016] In one embodiment, the horizontal step component includes front and rear fixed frames, at least three connecting plates connected between two of the fixed frames, all of the connecting plates are arranged in parallel, and the vertical connecting member includes two connecting frames located on the front and rear sides, and each of the connecting frames is connected to the corresponding fixed frame.

[0017] In one embodiment, a front guardrail and a rear guardrail are respectively provided on the front and rear sides of the support frame, the front guardrail and the rear guardrail have the same structure, and the front and rear fixing frames are respectively fixed to the front guardrail and the rear guardrail by locking members.

[0018] In one embodiment, the front guardrail includes a plurality of fixed rods arranged in parallel on the front side of the support frame, a connecting rod connecting the tops of two adjacent fixed rods, and an upper guardrail arranged at the end of the topmost fixed rod, each of the fixed rods is arranged vertically, and each of the connecting rods and the upper guardrail is arranged horizontally.

[0019] In one embodiment, the support frame includes a front inclined plate, a rear inclined plate, and a connecting bracket connected between the front inclined plate and the rear inclined plate.

[0020] In one embodiment, the connecting bracket includes a plurality of pulling plates arranged at equal intervals between the front inclined plate and the rear inclined plate.

[0021] Specifically, this solution has simple components, is easy to assemble, and can adjust the height and inclination of the stairs, making it suitable for most application scenarios in building construction sites.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model has a reasonable design. Most of the existing assembled construction movable stairs are too large to be used in this scenario. The utility model reduces the volume of the stairs, removes the pulley at the bottom of the movable stairs, and adopts a simple method for the stair support frame. The movable stairs of the utility model can adjust the inclination to adapt to various application scenarios.

[0024] 2. The present invention focuses on the stability, portability and practicality of the stairs, and its application scenarios are mainly in the part of the building construction site where there is no staircase between the poured floors and the unpoured floors. The existing way of going up and down in this part generally uses a mobile ladder, but the ladder has a high risk factor and is inconvenient to go up and down. Therefore, this invention is intended to replace this mobile ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 yes Figure 1Schematic cross-sectional view of ;

[0027] Figure 3 yes Figure 1 Stereoscopic image of

[0028] Figure markings: 1-support frame, 2-lower bracket, 3-bolt, 4-base, 5-telescopic rod, 6-resting platform, 7-bottom step, 8-locking piece, 9-fixed frame, 10-connecting frame, 11-fixed rod, 12-connecting rod, 13-upper guardrail, 14-connecting plate, 15-upper bracket, 16-connecting bracket. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Example 1

[0034] like Figures 1 to 3As shown, this embodiment provides a movable staircase for building construction, including an upper bracket 15, a lower bracket 2, a support frame 1 connected between the upper bracket 15 and the lower bracket 2, a step assembly arranged on the support frame 1, and a load-bearing support member arranged below the upper bracket 15 for adjusting the inclination angle of the support frame 1.

[0035] Specifically, this solution focuses on the stability, portability and practicality of the stairs, and its application scenarios are mainly in the part of the building construction site where there is no staircase between the poured floors and the unpoured floors. The existing way of going up and down in this part generally uses a mobile ladder, but the ladder has a high risk factor and is inconvenient to go up and down, so this invention is intended to replace this mobile ladder.

[0036] Most of the existing prefabricated construction mobile stairs are too large to be used in this scenario. This solution reduces the volume of the stairs, removes the pulley at the bottom of the mobile stairs, and adopts a simple method for the stair support frame 1. The mobile stairs of this solution can adjust the inclination to adapt to various application scenarios. The material of the mobile stairs in this solution is galvanized steel Q235.

[0037] Example 2

[0038] like Figures 1 to 3 As shown, this embodiment provides a movable staircase for building construction, including an upper bracket 15, a lower bracket 2, a support frame 1 connected between the upper bracket 15 and the lower bracket 2, a step assembly arranged on the support frame 1, and a load-bearing support member arranged below the upper bracket 15 for adjusting the inclination angle of the support frame 1.

[0039] The load-bearing support member includes two telescopic load-bearing units symmetrically arranged at the front and rear sides of the upper bracket 15 , the bottom of each telescopic load-bearing unit is in contact with the ground, and the top of each telescopic load-bearing unit is hinged to the upper bracket 15 .

[0040] The telescopic load-bearing unit comprises a base 4 , a telescopic rod 5 inserted into the base 4 , and a top of the telescopic rod 5 is hinged to an upper bracket 15 .

[0041] Specifically, the telescopic load-bearing unit of the present solution is mainly a telescopic device composed of a telescopic rod 5 and a base 4. The inclination of the stairs can be adjusted by adjusting the height of the telescopic rod 5, and the base 4 is a square sleeve.

[0042] Example 3

[0043] like Figures 1 to 3 As shown, this embodiment provides a movable staircase for building construction, including an upper bracket 15, a lower bracket 2, a support frame 1 connected between the upper bracket 15 and the lower bracket 2, a step assembly arranged on the support frame 1, and a load-bearing support member arranged below the upper bracket 15 for adjusting the inclination angle of the support frame 1.

[0044] The load-bearing support member includes two telescopic load-bearing units symmetrically arranged at the front and rear sides of the upper bracket 15 , the bottom of each telescopic load-bearing unit is in contact with the ground, and the top of each telescopic load-bearing unit is hinged to the upper bracket 15 .

[0045] The telescopic load-bearing unit comprises a base 4 , a telescopic rod 5 inserted into the base 4 , and a top of the telescopic rod 5 is hinged to an upper bracket 15 .

[0046] The step assembly comprises a plurality of step units arranged in sequence, a resting platform 6 arranged at the end of the topmost step unit, and a bottom step 7 arranged at the end of the bottommost step unit.

[0047] Each step unit includes a horizontal step member and a vertical connecting member. The top of the vertical connecting member is connected to the horizontal step member through a bolt 3 assembly, and the bottom of the vertical connecting member is connected to the horizontal step member of another adjacent step unit.

[0048] The horizontal stepping component includes front and rear fixing frames 9, at least three connecting plates 14 connected between the two fixing frames 9, all connecting plates 14 are arranged in parallel, and the vertical connecting member includes two connecting frames 10 located at the front and rear sides, and each connecting frame 10 is connected to the corresponding fixing frame 9.

[0049] Example 4

[0050] This embodiment is further optimized on the basis of any one of Embodiments 1 to 3, specifically:

[0051] A front guardrail and a rear guardrail are respectively arranged on the front and rear sides of the support frame 1. The front and rear guardrails have the same structure. The front and rear fixing frames 9 are respectively fixed to the front and rear guardrails by locking members 8.

[0052] The front guardrail includes a plurality of fixed rods 11 arranged in parallel on the front side of the support frame 1, a connecting rod 12 connecting the tops of two adjacent fixed rods 11, and an upper guardrail 13 arranged at the end of the topmost fixed rod 11. Each fixed rod 11 is arranged vertically, and each connecting rod 12 and the upper guardrail 13 are arranged horizontally.

[0053] Example 5

[0054] like Figures 1 to 3 As shown, this embodiment provides a movable staircase for building construction, including an upper bracket 15, a lower bracket 2, a support frame 1 connected between the upper bracket 15 and the lower bracket 2, a step assembly arranged on the support frame 1, and a load-bearing support member arranged below the upper bracket 15 for adjusting the inclination angle of the support frame 1.

[0055] The load-bearing support member includes two telescopic load-bearing units symmetrically arranged at the front and rear sides of the upper bracket 15 , the bottom of each telescopic load-bearing unit is in contact with the ground, and the top of each telescopic load-bearing unit is hinged to the upper bracket 15 .

[0056] The telescopic load-bearing unit comprises a base 4 , a telescopic rod 5 inserted into the base 4 , and a top of the telescopic rod 5 is hinged to an upper bracket 15 .

[0057] The step assembly comprises a plurality of step units arranged in sequence, a resting platform 6 arranged at the end of the topmost step unit, and a bottom step 7 arranged at the end of the bottommost step unit.

[0058] Each step unit includes a horizontal step member and a vertical connecting member. The top of the vertical connecting member is connected to the horizontal step member through a bolt 3 assembly, and the bottom of the vertical connecting member is connected to the horizontal step member of another adjacent step unit.

[0059] The horizontal stepping component includes front and rear fixing frames 9, at least three connecting plates 14 connected between the two fixing frames 9, all connecting plates 14 are arranged in parallel, and the vertical connecting member includes two connecting frames 10 located at the front and rear sides, and each connecting frame 10 is connected to the corresponding fixing frame 9.

[0060] A front guardrail and a rear guardrail are respectively arranged on the front and rear sides of the support frame 1. The front and rear guardrails have the same structure. The front and rear fixing frames 9 are respectively fixed to the front and rear guardrails by locking members 8.

[0061] The front guardrail includes a plurality of fixed rods 11 arranged in parallel on the front side of the support frame 1, a connecting rod 12 connecting the tops of two adjacent fixed rods 11, and an upper guardrail 13 arranged at the end of the topmost fixed rod 11. Each fixed rod 11 is arranged vertically, and each connecting rod 12 and the upper guardrail 13 are arranged horizontally.

[0062] The support frame 1 includes a front inclined plate, a rear inclined plate, and a connecting bracket 16 connected between the front inclined plate and the rear inclined plate.

[0063] The connecting bracket 16 includes a plurality of pull plates arranged at equal intervals between the front inclined plate and the rear inclined plate.

[0064] Specifically, this solution has simple components, is easy to assemble, and can adjust the height and inclination of the stairs, making it suitable for most application scenarios in building construction sites.

Claims

1. A movable staircase for building construction, characterized in that: The invention comprises an upper bracket (15), a lower bracket (2), a support frame (1) connected between the upper bracket (15) and the lower bracket (2), a step assembly arranged on the support frame (1), and a load-bearing support member arranged below the upper bracket (15) and used for adjusting the inclination angle of the support frame (1).

2. A movable staircase for building construction according to claim 1, characterized in that: The load-bearing support structure comprises two telescopic load-bearing units symmetrically arranged on the front and rear sides of the upper bracket (15), the bottom of each telescopic load-bearing unit is in contact with the ground, and the top of each telescopic load-bearing unit is hinged to the upper bracket (15).

3. The movable staircase for building construction according to claim 2 is characterized in that: The telescopic load-bearing unit comprises a base (4), a telescopic rod (5) inserted into the base (4), and the top of the telescopic rod (5) is hinged on the upper bracket (15).

4. The movable staircase for building construction according to claim 1, characterized in that: The step assembly comprises a plurality of step units arranged in sequence, a resting platform (6) arranged at the end of the topmost step unit, and a bottom step (7) arranged at the end of the bottommost step unit.

5. The movable staircase for building construction according to claim 4 is characterized in that: Each of the step units comprises a horizontal step component and a vertical connecting member, wherein the top of the vertical connecting member is connected to the horizontal step component via a bolt (3) assembly, and the bottom of the vertical connecting member is connected to the horizontal step component of another adjacent step unit.

6. The movable staircase for building construction according to claim 5, characterized in that: The horizontal stepping member comprises front and rear fixing frames (9), at least three connecting plates (14) connected between two of the fixing frames (9), all of the connecting plates (14) are arranged in parallel, and the vertical connecting member comprises two connecting frames (10) located at the front and rear sides, each of the connecting frames (10) is connected to the corresponding fixing frame (9).

7. The movable staircase for building construction according to claim 6, characterized in that: The front and rear sides of the support frame (1) are respectively provided with a front guardrail and a rear guardrail, the front guardrail and the rear guardrail have the same structure, and the front and rear fixing frames (9) are respectively fixed to the front guardrail and the rear guardrail via locking members (8).

8. The movable staircase for building construction according to claim 7, characterized in that: The front side guardrail comprises a plurality of fixed rods (11) arranged in parallel on the front side of the support frame (1), a connecting rod (12) connecting the tops of two adjacent fixed rods (11), and an upper guardrail (13) arranged at the end of the topmost fixed rod (11), each of the fixed rods (11) is arranged vertically, and each of the connecting rods (12) and the upper guardrail (13) is arranged horizontally.

9. The movable staircase for building construction according to claim 1, characterized in that: The support frame (1) comprises a front inclined plate, a rear inclined plate, and a connecting bracket (16) connected between the front inclined plate and the rear inclined plate.

10. The movable staircase for building construction according to claim 9, characterized in that: The connecting bracket (16) comprises a plurality of pulling plates which are arranged at equal intervals between the front inclined plate and the rear inclined plate.

Images