Temporary shaped steel staircase for upper and lower floors of fabricated structure

Abstract

The utility model relates to the technical field of assembled temporary stairs, and discloses an assembled structure temporary shaped steel stair for upper and lower floors, which comprises two main frames, the adjacent sides of the two main frames are provided with sliding chutes, and the inner sides of the two sliding chutes are connected with a plurality of rotating rods in a sliding manner at equal intervals; the outer walls of the multiple rotating rods are fixedly connected with pedals, the middles of the multiple pedals are fixedly connected with sliding rods, the middles of the two main frames are rotationally connected with multiple fixing rods at equal intervals, the left ends of the multiple fixing rods are in threaded connection with nuts, and a splicing fixing mechanism is installed at the tops of the two main frames. And the splicing and fixing mechanism is used for splicing and fixing. According to the utility model, the rotating rods and the sliding rods on the pedals are placed in the sliding chutes of the main frame, and then are fixed by matching the fixing rods with the nuts, so that the effect of quickly assembling and disassembling the temporarily-shaped steel staircase for the upper and lower floors of the assembly type structure is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled temporary stairs, in particular to a temporary standardized steel staircase for upper and lower floors of an assembled structure. Background Art

[0002] Temporary standardized steel stairs are important temporary facilities in the construction of prefabricated structures. They provide construction workers with safe and convenient access to floors. Their reasonable structural design, fast installation method, reusability, and convenient maintenance requirements have made them widely used on construction sites.

[0003] After searching, the Chinese patent announcement number is: CN214461122U, which discloses a standardized steel ladder for prefabricated floor construction, including: two upright first square columns, two upright second square columns and a stairwell, the two first square columns are respectively located at the two left corners of the stairwell, and the two second square columns are respectively located at the two right corners of the stairwell. The main load-bearing parts of the utility model are made of channel steel and square tube. The utility model is made of steel structure as a whole, with a strong and stable structure, which is convenient for workers to go up and down. When walking, it is not easy to shake, which ensures the safety of workers. Compared with temporary stairs built with steel pipes and fasteners, this utility model requires fewer parts to be installed or disassembled. For example, the steel stair platform and steel stairs of this standardized steel ladder are all integral components with fewer and simple installation procedures and faster installation speed, thereby greatly improving construction efficiency. The existing temporary standardized stairs for going up and down floors use temporary simple scaffolding or wooden stairs for workers to go up and down floors. Such temporary stairs take a long time to build and also cause waste of materials, which are difficult to reuse. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a temporary standardized steel staircase for upper and lower floors of an assembled structure, aiming to improve the problems in the existing technology that temporary stairs take a long time to build and cause waste of materials that are difficult to reuse.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a temporary standardized steel staircase for upper and lower floors of an assembled structure, comprising a main frame, two adjacent sides of the main frames are provided with a slide groove, the inner sides of the two slide grooves are equidistantly slidably connected with a plurality of rotating rods, the outer walls of the plurality of rotating rods are fixedly connected with pedals, the middle parts of the plurality of pedals are fixedly connected with a sliding rod, the middle parts of the two main frames are equidistantly rotatably connected with a plurality of fixed rods, the left ends of the plurality of fixed rods are threadedly connected with nuts, and a splicing and fixing mechanism is installed on the top of the two main frames, and the splicing and fixing mechanism is used for splicing and fixing.

[0006] Through the above technical solution: the pedal can be placed into the sliding groove on the two main frames through the rotating rod and sliding rod on it, and the rotating rod is slid to the corresponding position; then it is fixed between the two main frames through the fixing rod and nut, and the above steps are repeated to fix multiple pedals to the corresponding positions in turn.

[0007] As a further description of the above technical solution:

[0008] The splicing and fixing mechanism includes a buckle, and the two buckles are respectively fixedly connected to the top of the corresponding main frame. A slot is provided at the bottom of the two main frames. The outer sides of the two main frames are slidably connected to a fixing frame, and the four corners on the rear side of the fixing frame are threadedly connected with a screw. The left and right sides of the fixing frame are slidably connected with a fixing lock, and the front and rear ends of the adjacent sides of the two fixing locks are slidably connected with a pin.

[0009] Through the above technical solution: multiple main frames can be snapped together through the buckles and slots, and then the fixing frame is slid to the joint of the two sets of temporary stairs and aligned, and fixed with multiple screws. After fixation, the fixing lock is inserted through the holes of the fixing frame and the main frame, and then the pin is inserted into the slot of the fixing lock to fix it.

[0010] As a further description of the above technical solution:

[0011] A plurality of support rods are equidistantly threadedly connected to the front sides of the two main frames, and the tops of the plurality of support rods are fixedly connected to handrails.

[0012] Through the above technical solution: the handrail fixed by the support rod provides convenience for the staff.

[0013] As a further description of the above technical solution:

[0014] Anti-slip strips are equidistantly installed at the front ends of the top walls of the plurality of pedals, and the left and right ends of the plurality of anti-slip strips are both threadedly connected to screw two.

[0015] Through the above technical solution: Screw 2 fixes the anti-slip strip on the pedal, providing an anti-slip effect for people going up and down the stairs.

[0016] As a further description of the above technical solution:

[0017] Anti-collision strips are installed on the rear sides of the two main frames, and the upper and lower ends of the two anti-collision strips are threadedly connected with screws three.

[0018] Through the above technical solution: screw three fixes the anti-collision strip to the main frame to prevent workers from being injured.

[0019] As a further description of the above technical solution:

[0020] An anti-slip cover is installed on the outer wall of the handrail, and a Velcro is fixedly connected to the rear side of the anti-slip cover at equal distances.

[0021] Through the above technical solution: the anti-slip cover fixed by the Velcro can improve the anti-slip performance of the handrail.

[0022] As a further description of the above technical solution:

[0023] The tops of the plurality of latches are fixedly connected with lifting rods, and the upper ends of the plurality of lifting rods are fixedly connected with pull rings.

[0024] Through the above technical solution, the pull ring fixed on the bolt by the lifting rod facilitates the quick insertion and removal of the bolt.

[0025] As a further description of the above technical solution:

[0026] The top of the fixing frame is fixedly connected with fixing plates at equal distances, and the rear ends of the two fixing plates are both threadedly connected with screws four.

[0027] Through the above technical solution: the temporary stairs can be fixed to the upper floor using fixing plates and screws.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present invention, the turning rod and the sliding rod on the pedal are placed in the slide groove of the main frame, and then fixed by the fixing rod and the nut, thereby realizing the effect of rapid assembly and disassembly of the temporary standardized steel stairs for the upper and lower floors of the prefabricated structure, while avoiding the problem of waste of materials and difficulty in reuse.

[0030] 2. In the present invention, the temporary stairs are engaged through the snap-fitting slots, and then the fixing frame is slid to the joint and fixed with a plurality of screws. The fixing frame and the main frame are fixed with a fixing lock, and the fixing lock is fixed with a latch, thereby achieving the effect of free adjustment when the temporary stairs are too long or too short when facing floors of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a temporary standardized steel staircase for upper and lower floors of an assembled structure proposed by the present invention;

[0032] Figure 2 This is a rear view of a temporary standardized steel staircase for upper and lower floors of an assembled structure proposed in the present invention;

[0033] Figure 3 This is a partial structural breakdown diagram of a temporary standardized steel staircase for upper and lower floors of an assembled structure proposed in the utility model;

[0034] Figure 4 This is an exploded view of the splicing and fixing mechanism of a temporary standardized steel staircase for upper and lower floors of an assembled structure proposed in the utility model;

[0035] Figure 5 This utility model proposes a temporary steel staircase for upper and lower floors of an assembled structure. Figure 4 Enlarged view of point A in the middle.

[0036] Legend:

[0037] 1. Main frame; 2. Splicing and fixing mechanism; 201. Buckle; 202. Slot; 203. Fixing frame; 204. Screw one; 205. Fixing lock; 206. Latch; 3. Slide slot; 4. Turn bar; 5. Pedal; 6. Sliding bar; 7. Fixing bar; 8. Nut; 9. Support bar; 10. Handrail; 11. Anti-slip strip; 12. Screw two; 13. Anti-collision strip; 14. Screw three; 15. Anti-slip cover; 16. Velcro; 17. Pull rod; 18. Pull ring; 19. Fixing plate; 20. Screw four. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 1 and Figure 3 The utility model provides an embodiment: a temporary standardized steel staircase for upper and lower floors of an assembled structure, comprising a main frame 1, a slide groove 3 is opened on the adjacent side of the two main frames 1, a plurality of rotating rods 4 are equidistantly slidably connected to the inner sides of the two slide grooves 3, the outer walls of the plurality of rotating rods 4 are fixedly connected to pedals 5, the middle parts of the plurality of pedals 5 are fixedly connected to sliding rods 6, the pedals 5 are fixed in the slide groove 3 of the main frame 1 through the rotating rods 4 and the sliding rods 6, the middle parts of the two main frames 1 are equidistantly rotatably connected to a plurality of fixing rods 7, the left ends of the plurality of fixing rods 7 are threadedly connected to nuts 8 , the rotating rod 4 is fixed in the corresponding position by the cooperation of the fixing rod 7 and the nut 8, the top of the two main frames 1 is installed with a splicing fixing mechanism 2, the splicing fixing mechanism 2 is used for splicing and fixing, the front side of the two main frames 1 is equidistantly threaded with multiple support rods 9, the tops of the multiple support rods 9 are fixedly connected with handrails 10, and the handrails 10 provide safety for the staff. The front ends of the top walls of the multiple pedals 5 are equidistantly installed with anti-slip strips 11, and the left and right ends of the multiple anti-slip strips 11 are threaded with screws 12. The anti-slip strips 11 can prevent the staff from slipping when going up and down the stairs;

[0040] Specifically, when a temporary staircase is needed between the upper and lower floors, the two main frames 1 can be fixed first, and then the turning rod 4 and the sliding rod 6 on the pedal 5 are placed in the slide groove 3 on the two main frames 1 in order from top to bottom, and the turning rod 4 is slid to the corresponding position; then it is fixed between the two main frames 1 through the fixing rod 7 and the nut 8, and the above steps are repeated to fix multiple pedals 5 to the corresponding positions in turn; in this way, the effect of rapid assembly and disassembly of temporary shaped steel stairs for the upper and lower floors of the prefabricated structure is achieved, while avoiding the problem of waste of materials and difficulty in reuse. The handrail 10 fixed by the support rod 9 can provide convenience and safety for the staff, and the anti-slip strip 11 fixed to the pedal 5 by screw 2 12 has an anti-slip effect for people going up and down the stairs.

[0041] Reference Figure 4 and Figure 5 The two fixing brackets 203 are connected to each other at the same time, and the fixing brackets 203 are connected to each other at the same time.

[0042] Specifically, when facing floors of different heights, multiple temporary stairs can be assembled, and the multiple assembled temporary stairs are engaged through the buckle 201 at the top of the main frame 1 and the slot 202 at the bottom; then the fixing frame 203 is slid to the joint of the two sets of temporary stairs and aligned, and then fixed by multiple screws 204. After fixation, the fixing lock 205 is inserted through the holes of the fixing frame 203 and the main frame 1, and then the pin 206 is inserted into the slot of the fixing lock 205 for fixing; in this way, the temporary stairs can be freely adjusted when they are too long or too short when facing floors of different heights, and the pull ring 18 fixed on the pin 206 by the lifting rod 17 helps to quickly insert and remove the pin 206.

[0043] Reference Figure 2 and Figure 4, anti-collision strips 13 are installed on the rear sides of the two main frames 1, and the upper and lower ends of the two anti-collision strips 13 are threadedly connected with screws three 14, and the anti-collision strips 13 play a protective role. The outer wall of the handrail 10 is installed with an anti-slip cover 15, and the rear side of the anti-slip cover 15 is equidistantly fixed with Velcro 16. The anti-slip cover 15 provides greater friction when someone grasps the handrail 10. The top of the fixing frame 203 is equidistantly fixed with a fixing plate 19, and the rear ends of the two fixing plates 19 are threaded with screws four 20. The temporary stairs can be fixed to the upstairs through the fixing plate 19;

[0044] Specifically, the anti-collision strip 13 fixed to the back of the main frame 1 by screw three 14 can prevent workers from being injured by bumps, the anti-slip cover 15 fixed on the handrail 10 by Velcro 16 can provide an anti-slip effect for the handrail 10, and the temporary stairs can be fixed to the upper floor by the fixing plate 19 and screw four 20.

[0045] Working principle: When a temporary staircase is needed between upper and lower floors, the two main frames 1 can be fixed first, and then the rotating rod 4 and the sliding rod 6 on the tread 5 are placed into the sliding groove 3 on the two main frames 1 in order from top to bottom, and the rotating rod 4 is slid to the corresponding position; then it is fixed between the two main frames 1 through the fixing rod 7 and the nut 8, and the above steps are repeated to fix multiple treads 5 to the corresponding positions in sequence; in this way, the effect of rapid assembly and disassembly of the temporary standardized steel staircase for the upper and lower floors of the prefabricated structure is achieved, while avoiding the problem of material waste and difficulty in reuse;

[0046] When facing floors of different heights, multiple temporary stairs can be assembled. The multiple assembled temporary stairs are engaged through the buckle 201 at the top of the main frame 1 and the slot 202 at the bottom; then the fixing frame 203 is slid to the joint of the two sets of temporary stairs and aligned, and then fixed with multiple screws 204. After fixation, the fixing lock 205 is inserted through the holes of the fixing frame 203 and the main frame 1, and then the pin 206 is inserted into the slot of the fixing lock 205 to fix it; in this way, the temporary stairs can be freely adjusted when they are too long or too short when facing floors of different heights.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temporary steel staircase for upper and lower floors of an assembled structure, comprising a main frame (1), characterized in that: A slide groove (3) is provided on the adjacent side of the two main frames (1), and a plurality of rotating rods (4) are equidistantly slidably connected to the inner sides of the two slide grooves (3), and the outer walls of the plurality of rotating rods (4) are fixedly connected to pedals (5), and the middle parts of the plurality of pedals (5) are fixedly connected to slide rods (6). The middle parts of the two main frames (1) are equidistantly rotatably connected to a plurality of fixed rods (7), and the left ends of the plurality of fixed rods (7) are threadedly connected to nuts (8). A splicing and fixing mechanism (2) is installed on the top of the two main frames (1), and the splicing and fixing mechanism (2) is used for splicing and fixing.

2. A temporary steel staircase for upper and lower floors of an assembled structure according to claim 1, characterized in that: The splicing fixing mechanism (2) includes a buckle (201), two buckles (201) are respectively fixedly connected to the top of the corresponding main frame (1), the bottom of the two main frames (1) is provided with a slot (202), the outer sides of the two main frames (1) are slidably connected to a fixing frame (203), the four corners of the rear side of the fixing frame (203) are threadedly connected with screws (204), the left and right sides of the fixing frame (203) are slidably connected to a fixing lock (205), and the front and rear ends of the adjacent sides of the two fixing locks (205) are slidably connected to a latch (206).

3. The temporary shaped steel staircase for upper and lower floors of an assembled structure according to claim 1 is characterized by: A plurality of support rods (9) are equidistantly threadedly connected to the front sides of the two main frames (1), and a handrail (10) is fixedly connected to the tops of the plurality of support rods (9).

4. The temporary shaped steel staircase for upper and lower floors of a prefabricated structure according to claim 1 is characterized by: Anti-slip strips (11) are equidistantly installed at the front ends of the top walls of the plurality of pedals (5), and the left and right ends of the plurality of anti-slip strips (11) are both threadedly connected to screw two (12).

5. The temporary shaped steel staircase for upper and lower floors of a prefabricated structure according to claim 1 is characterized by: Anti-collision strips (13) are installed on the rear sides of the two main frames (1), and the upper and lower ends of the two anti-collision strips (13) are threadedly connected with screws (14).

6. The temporary shaped steel staircase for upper and lower floors of a prefabricated structure according to claim 3 is characterized by: An anti-slip cover (15) is installed on the outer wall of the handrail (10), and a Velcro (16) is fixedly connected to the rear side of the anti-slip cover (15) at equal distances.

7. The temporary shaped steel staircase for upper and lower floors of a prefabricated structure according to claim 2 is characterized by: The tops of the plurality of latches (206) are fixedly connected to a lifting rod (17), and the upper ends of the plurality of lifting rods (17) are fixedly connected to a pull ring (18).

8. The temporary shaped steel staircase for upper and lower floors of a prefabricated structure according to claim 2 is characterized by: The top of the fixing frame (203) is fixedly connected to fixing plates (19) at equal distances, and the rear ends of the two fixing plates (19) are both threadedly connected to screws (20).

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