Temporary prefabricated stair for assembly type main body structure

Abstract

The utility model provides a temporary prefabricated stair for an assembly type main body structure, which relates to the field of temporary buildings for construction, is assembled in advance, can be integrally hoisted into a staircase, and comprises a frame mechanism, a finished surface platform, a lower walking mechanism, a transfer rest platform, an upper walking mechanism and a working surface platform, the temporary prefabricated staircase is assembled in advance and can be integrally hoisted into a staircase, workers do not need to erect the temporary prefabricated staircase in the staircase with limited operation space, and during hoisting, the workers unfold the X-direction telescopic rod assembly, so that the extension part of the X-direction telescopic rod assembly is erected on a building floor, and the working efficiency is improved. The overall operation is simple, the overall strength of the temporary prefabricated staircase is high, the stability is high, the use requirement of a construction site can be effectively met, time and labor are saved, the temporary prefabricated staircase can be widely popularized and used, and large social benefits are created.

Description

Technical Field

[0001] The utility model relates to the field of temporary buildings for construction, in particular to a temporary prefabricated staircase for an assembled main structure. Background Art

[0002] In construction work, the safety of working at heights is the top priority of project safety and a hidden danger that every project safety manager needs to pay attention to at all times. Stairwells are large openings in on-site construction and are also common places for falls and injuries during high-altitude work. Construction workers may suffer sprains or fractures. Therefore, when the main structure of prefabricated houses is being constructed, temporary prefabricated stairs are often used as passages between the finished surface and the working surface. Temporary prefabricated stairs are prone to accidents such as workers spraining their feet and falling. The existing conventional practice is to use steel pipes to build temporary prefabricated stairs and fix them to the steel pipes in the building. This practice often requires a lot of labor for installation, and the temporary prefabricated stairs built with steel pipes shake severely, the steel pipe buckles are easy to disengage, and the prefabricated stairs have no other protective devices and facilities. It is not only time-consuming and labor-intensive, but also fails to effectively protect the lives of construction workers when they go up and down the working surface. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a temporary prefabricated staircase for an assembled main structure. The overall operation of the patent is simple, and the temporary prefabricated staircase has high overall strength and strong stability, which can effectively meet the use of the construction site, save time and labor, can be widely promoted and used, and create greater social benefits.

[0004] The utility model is realized through the following technical solutions:

[0005] A temporary prefabricated staircase for an assembled main structure. The temporary prefabricated staircase is pre-assembled and can be hoisted as a whole into a stairwell. The temporary prefabricated staircase comprises a frame mechanism, a finished surface platform, a lower walking mechanism, a transfer rest platform, an upper walking mechanism and a working surface platform. The finished surface platform, the lower walking mechanism, the transfer rest platform, the upper walking mechanism and the working surface platform are all fixedly connected to the frame mechanism. The upper and lower ends of the lower walking mechanism are respectively connected to the transfer rest platform and the finished surface platform. The upper and lower ends of the upper walking mechanism are respectively connected to the working surface platform and the transfer rest platform. The frame mechanism comprises an upper crossbar assembly, a lower crossbar assembly and connecting vertical rods. The upper and lower parts of the connecting vertical rods are respectively fixedly connected to the upper crossbar assembly and the lower crossbar assembly. The lower ends of multiple groups of connecting vertical rods are against the staircase surface that has been cast. The upper crossbar assembly and the lower crossbar assembly both comprise a fixedly connected X-direction telescopic rod assembly and a Y-direction support rod. The extended part of the X-direction telescopic rod assembly is erected on the building floor.

[0006] It can be seen that in the above technical scheme, the temporary prefabricated stairs of this patent are pre-assembled and can be hoisted into the stairwell as a whole, eliminating the need for workers to set up temporary prefabricated stairs in the stairwell with limited operating space. The X-axis telescopic rod assembly is retracted into place in advance. During hoisting, the worker unfolds the X-axis telescopic rod assembly so that the extended part of the X-axis telescopic rod assembly is set on the building floor until the lower ends of multiple groups of connecting vertical rods are against the cast stair surface. The overall operation is simple, and the temporary prefabricated stairs have high overall strength and stability, which can effectively meet the use of construction sites, save manpower, material and financial resources, and can be widely promoted and used to create greater social benefits.

[0007] According to the above technical solution, preferably, the X-axis telescopic rod assembly includes a coaxial supporting sleeve and a supporting sliding rod, the supporting sliding rod is plug-in and adjustablely connected to the supporting sleeve, and the outer end of the supporting sliding rod slides out of the supporting sleeve and is erected on the building floor.

[0008] It can be seen that in the above technical solution, before the temporary prefabricated stairs are hoisted, the staff will slide the support slide rod into the support sleeve; when the hoisting is basically completed, the staff will slide the support slide rod partially out of the support sleeve, so that the support slide rod part is erected on the building floor, thereby achieving stable support for the temporary prefabricated stairs.

[0009] According to the above technical solution, preferably, a locking bolt is threadedly connected to the support sleeve, and a plurality of slots matching the locking bolts are provided at equal intervals on the support slide rod.

[0010] It can be seen that in the above technical solution, when the support slide rod slides out of the set length, the staff can use the locking bolt to lock the support slide sleeve and the support slide rod, which is simple and convenient to operate.

[0011] According to the above technical solution, preferably, handrails and protective nets are provided on both sides of the lower walking mechanism and the upper walking mechanism.

[0012] It can be seen that in the above technical solution, the handrails and the protective net can further improve the safety of the temporary prefabricated stairs.

[0013] According to the above technical solution, preferably, multiple groups of adjustable positioning anchor assemblies are provided on multiple groups of connecting vertical rods, the positioning anchor assemblies include an adjustment plate, a hook and a fixed seat, the fixed seat is fixedly set on the side wall of the stairwell, the adjustment plate and the connecting vertical rod are adjustable and slidably connected up and down, the hook is fixedly connected to the adjustment plate, and the hook is hung and fixed on the fixed seat.

[0014] It can be seen that in the above technical solution, the positioning anchor assembly can effectively lock the temporary prefabricated stairs, suppress the shaking or sliding of the temporary prefabricated stairs, and effectively improve the safety of the use of the temporary prefabricated stairs.

[0015] According to the above technical solution, preferably, the lower walking mechanism and the upper walking mechanism each include two groups of parallel diagonal rods, multiple groups of supporting steel pipes and pedals, the supporting steel pipes are fixedly connected to the parallel diagonal rods, and the pedals are horizontally arranged and fixed on two adjacent groups of supporting steel pipes.

[0016] The beneficial effects of the utility model are:

[0017] (1) The temporary prefabricated staircase of the present invention is pre-assembled and can be hoisted into the stairwell as a whole, eliminating the need for workers to set up temporary prefabricated stairs in the stairwell with limited operating space. The X-axis telescopic rod assembly is retracted into place in advance. During hoisting, the worker unfolds the X-axis telescopic rod assembly so that the extended part of the X-axis telescopic rod assembly is set on the building floor until the lower ends of the multiple sets of connecting vertical rods are against the cast staircase surface. The overall operation is simple;

[0018] (2) The temporary prefabricated stairs of this patent have high overall strength and strong stability, can effectively meet the needs of construction sites, save manpower, material resources and financial resources, can be widely promoted and used, and create greater social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 An isometric structural diagram of an embodiment of the utility model is shown;

[0020] Figure 2 A front view structural schematic diagram of an embodiment of the utility model is shown;

[0021] Figure 3 A schematic diagram of a side view structure of an embodiment of the utility model is shown;

[0022] Figure 4 The isometric structural diagram of the positioning anchor assembly in the embodiment of the utility model is shown;

[0023] Description of reference numerals:

[0024] 1. Frame mechanism; 2. Finished surface platform; 3. Lower walking mechanism; 4. Transfer and rest platform; 5. Upper walking mechanism; 6. Working surface platform; 7. Upper crossbar assembly; 8. Lower crossbar assembly; 9. Connecting vertical rod; 10. X-axis telescopic rod assembly; 11. Y-axis support rod; 12. Support sleeve; 13. Support slide rod; 14. Positioning anchor assembly; 15. Adjustment plate; 16. Hook; 17. Parallel diagonal rod; 18. Support steel pipe; 19. Pedal. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0026] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0027] As shown in the figure, the utility model provides a temporary prefabricated staircase for an assembled main structure. The temporary prefabricated staircase is pre-assembled and can be hoisted into the stairwell as a whole. It includes a frame mechanism 1, a finished surface platform 2, a lower walking mechanism 3, a transfer rest platform 4, an upper walking mechanism 5 and a working surface platform 6. The finished surface platform 2, the lower walking mechanism 3, the transfer rest platform 4, the upper walking mechanism 5 and the working surface platform 6 are all fixedly connected to the frame mechanism 1, and the upper and lower ends of the lower walking mechanism 3 are respectively connected to the transfer rest platform 4 and the finished surface platform 6. The upper and lower ends of the upper walking mechanism 5 are connected with the working surface platform 6 and the transfer rest platform 4 respectively, wherein the frame mechanism 1 includes an upper crossbar assembly 7, a lower crossbar assembly 8 and a connecting vertical rod 9, the upper and lower parts of the connecting vertical rod 9 are fixedly connected with the upper crossbar assembly 7 and the lower crossbar assembly 8 respectively, and the lower ends of the multiple connecting vertical rods 9 are against the cast stair surface, and the upper crossbar assembly 7 and the lower crossbar assembly 8 both include a fixedly connected X-direction telescopic rod assembly 10 and a Y-direction support rod 11, and the extension of the X-direction telescopic rod assembly 10 The X-axis telescopic rod assembly 10 includes a coaxial support sleeve 12 and a support slide rod 13. The support slide rod 13 is plug-adjustably connected with the support sleeve 12. The outer end of the support slide rod 13 slides out of the support sleeve 12 and is erected on the building floor. Before the temporary prefabricated staircase is hoisted, the staff slides the support slide rod 13 into the support sleeve 12; when the hoisting is basically completed, the staff slides the support slide rod 13 partially out of the support sleeve 12, so that the support slide rod 13 is partially erected on the building floor, thereby realizing the temporary prefabricated staircase. In order to provide stable support for the stairs, multiple groups of connecting vertical rods 9 are provided with multiple groups of adjustable positioning anchor assemblies 14, which include adjusting plates 15, hooks 16 and fixed seats, which are fixedly arranged on the side walls of the stairwells, and the adjusting plates 15 are slidably connected to the connecting vertical rods 9 up and down, and the hooks 16 are fixedly connected to the adjusting plates 15, which are hung and fixed on the fixed seats, and the positioning anchor assemblies 14 can effectively lock the temporary prefabricated stairs, suppress the shaking or sliding of the temporary prefabricated stairs, and effectively improve the safety of the temporary prefabricated stairs.

[0028] The temporary prefabricated staircase of the present invention is pre-assembled and can be hoisted into the stairwell as a whole, eliminating the need for workers to set up temporary prefabricated stairs in the stairwell with limited operating space. The X-axis telescopic rod assembly 10 is retracted into place in advance. During hoisting, the worker unfolds the X-axis telescopic rod assembly 10 so that the extended part of the X-axis telescopic rod assembly 10 is set on the building floor until the lower ends of the multiple groups of connecting vertical rods 9 are against the cast staircase surface. The overall operation is simple, and the temporary prefabricated staircase has high overall strength and strong stability, which can effectively meet the use of construction sites, save manpower, material resources and financial resources, and can be widely promoted and used to create greater social benefits.

[0029] Optionally, in a possible implementation, a locking bolt is threadedly connected to the support sleeve 12, and a plurality of groups of slots compatible with the locking bolts are evenly spaced on the support slide rod 13. When the support slide rod 13 slides out to a set length, the staff can use the locking bolt to lock the support sleeve 12 and the support slide rod 13, which is simple and convenient to operate.

[0030] Optionally, in a possible implementation manner, handrails and protective nets are provided on both sides of the lower walking mechanism 3 and the upper walking mechanism 5, and the handrails and protective nets can further improve the safety of the temporary prefabricated stairs.

[0031] Optionally, in a possible embodiment, the lower walking mechanism 3 and the upper walking mechanism 5 both include two groups of parallel inclined rods 17, multiple groups of supporting steel pipes 18 and pedals 19, the supporting steel pipes 18 are fixedly connected to the parallel inclined rods 17, and the pedals 19 are horizontally arranged and fixed on two adjacent groups of supporting steel pipes 18.

[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A temporary prefabricated staircase for an assembled main structure, characterized in that: The temporary prefabricated stairs are pre-assembled and can be hoisted as a whole into the stairwell, which includes a frame mechanism, a finished surface platform, a lower walking mechanism, a transfer rest platform, an upper walking mechanism and a working surface platform. The finished surface platform, the lower walking mechanism, the transfer rest platform, the upper walking mechanism and the working surface platform are all fixedly connected to the frame mechanism, and the upper and lower ends of the lower walking mechanism are respectively connected with the transfer rest platform and the finished surface platform, and the upper and lower ends of the upper walking mechanism are respectively connected with the working surface platform and the transfer rest platform. The frame mechanism includes an upper cross bar assembly, a lower cross bar assembly and a connecting vertical rod, and the upper and lower parts of the connecting vertical rod are respectively fixedly connected to the upper cross bar assembly and the lower cross bar assembly, and the lower ends of multiple groups of connecting vertical rods are against the cast stair surface, and the upper cross bar assembly and the lower cross bar assembly both include a fixedly connected X-axis telescopic rod assembly and a Y-axis support rod, and the extended part of the X-axis telescopic rod assembly is erected on the building floor.

2. A temporary prefabricated staircase for an assembled main structure according to claim 1, characterized in that: The X-direction telescopic rod assembly comprises a coaxial supporting sliding sleeve and a supporting sliding rod, wherein the supporting sliding rod is plug-adjustably connected to the supporting sliding sleeve, and the outer end of the supporting sliding rod slides out of the supporting sliding sleeve and is erected on the building floor.

3. A temporary prefabricated staircase for an assembled main structure according to claim 2, characterized in that: The support sliding sleeve is threadedly connected with a locking bolt, and the support sliding rod is provided with a plurality of slots matched with the locking bolts at equal intervals.

4. A temporary prefabricated staircase for an assembled main structure according to claim 1, characterized in that: Handrails and protective nets are arranged on both sides of the lower walking mechanism and the upper walking mechanism.

5. A temporary prefabricated staircase for an assembled main structure according to claim 1, characterized in that: A plurality of groups of adjustable positioning anchor assemblies are provided on the plurality of groups of connecting vertical rods, and the positioning anchor assemblies include an adjustment plate, a hook and a fixing seat, the fixing seat is fixedly arranged on the side wall of the stairwell, the adjustment plate is adjustable and slidably connected to the connecting vertical rod up and down, the hook is fixedly connected to the adjustment plate, and the hook is hung and fixed on the fixing seat.

6. A temporary prefabricated staircase for an assembled main structure according to claim 1, characterized in that: The lower walking mechanism and the upper walking mechanism both include two groups of parallel oblique rods, multiple groups of supporting steel pipes and pedals. The supporting steel pipes are fixedly connected to the parallel oblique rods, and the pedals are horizontally arranged and fixed on two adjacent groups of supporting steel pipes.

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