Spiral stair steel plate guardrail convenient to install

Abstract

The utility model discloses a spiral stair steel plate guardrail convenient to install, relates to the technical field of guardrails, and aims to solve the problems that an arranged steel plate structure serves as a stair guardrail for protection of an existing spiral stair, but the strength requirement of the guardrail of the spiral stair cannot be met through a pure steel plate structure, bending and shaping operation is inconvenient in the steel plate installation process, and the installation cost is high. The spiral stair guardrail comprises a guardrail vertical rod, two limiting ring plates are arranged on the outer wall of the guardrail vertical rod, the two limiting ring plates and the guardrail vertical rod are of an integrated structure, a sleeving ring block is arranged between the two limiting ring plates in a sleeving mode, and two connecting rods are arranged between the two sleeving ring blocks; the two connecting rods are connected with the outer walls of the two sleeving ring blocks in a welded mode correspondingly. The guardrail further comprises a top seat rod which is arranged at the top of the guardrail vertical rod, a top screw cavity is formed in the top seat rod, a threaded end is movably arranged in the top screw cavity, and a movable connecting rod is welded to the center of the upper end of the threaded end.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to a steel plate guardrail for a spiral staircase which is easy to install. Background Art

[0002] Stair railings are mainly used for protection on both sides of the stairs. Spiral staircase is a type of staircase, usually called a spiral or spiral staircase, which is usually arranged around a single column. It is popular due to its beautiful and elegant streamlined shape and space saving.

[0003] For example, the announcement number is: CN215670630U (named as a high-ribbed spiral staircase), which includes a spiral high-ribbed steel plate and a steel pedal. The number of the spiral high-ribbed steel plates is two, and a steel pedal is arranged between the two spiral high-ribbed steel plates. An embedded part is arranged on the outer side of the concrete layer. The top and bottom ends of the spiral high-ribbed steel plate are connected to the surface of the embedded part. By adopting the high-ribbed steel plate formed in one piece by spiral, there is no need to make a guardrail, and the installation is quick to achieve high efficiency, which is convenient for rapid construction in the form of on-site assembly; at the same time, the use of high-performance concrete for the production of prefabricated components can reduce the amount of materials for the stairs by 40% to 70%, and has the characteristics of beautiful shape, lightweight structure, high standardization, rapid assembly, no casting formwork, and self-occlusion of prefabricated components. It has been verified that the spiral staircase described in the utility model can reduce the amount of materials by 40% to 70% and shorten the construction period by more than 30% while achieving the functional requirements of the same cast-in-place staircase. It is convenient to repair and replace, and has a simple structure. At the same time, the shape is dignified and stable, and the rotating line is beautiful.

[0004] The above-mentioned spiral staircase is protected by a steel plate structure that acts as a stair guardrail, but a simple steel plate structure cannot meet the guardrail strength requirements of the spiral staircase, and the bending and shaping operation of the steel plate during installation is inconvenient, resulting in the problem that the installation of the spiral staircase guardrail is inconvenient. For this reason, we provide a spiral staircase steel plate guardrail that is easy to install. Utility Model Content

[0005] The purpose of the utility model is to provide a spiral staircase steel plate guardrail that is easy to install, so as to solve the problem that the existing spiral staircase proposed in the above background technology is protected by a steel plate structure set up as a staircase guardrail, but the simple steel plate structure cannot meet the guardrail strength requirements of the spiral staircase, and the bending and shaping operation of the steel plate during installation is inconvenient, resulting in the inconvenience of installing the spiral staircase guardrail.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel plate guardrail for a spiral staircase that is easy to install, comprising a guardrail upright, two limit ring plates are arranged on the outer wall of the guardrail upright, the two limit ring plates and the guardrail upright are an integrated structure, a sleeve ring block is sleeved between the two limit ring plates, two connecting rods are arranged between the two sleeve ring blocks, and the two connecting rods are respectively welded to the outer walls of the two sleeve ring blocks;

[0007] Also includes:

[0008] A top seat rod is arranged at the top position of the guardrail upright, and a top screw cavity is arranged inside the top seat rod, a threaded end is movably arranged inside the top screw cavity, a movable connecting rod is welded at the center position of the upper end of the threaded end, and the movable connecting rod is movably connected with the top screw cavity through penetration;

[0009] A guide cavity is arranged inside the connecting rod, and a through hole is arranged at one end of the guide cavity, the through hole is connected to the inside of the guide cavity, and a lining rod is movably arranged inside the through hole;

[0010] The hollow through groove is arranged inside the guardrail upright pole, and a thin steel plate is penetrated inside the hollow through groove.

[0011] Preferably, a spring-loaded groove is provided on the inner wall of the hollow through groove, a return spring is provided inside the spring-loaded groove, a top pressure cap is provided at one end of the return spring, and the top pressure cap contacts and abuts against the thin steel plate.

[0012] Preferably, both ends of the lining rod are welded with limit blocks, and the size of the limit blocks is larger than the diameter of the through hole.

[0013] Preferably, an armrest seat is provided at the upper end of the movable connecting rod, and the armrest seat and the movable connecting rod are an integral structure.

[0014] Preferably, a mounting chassis is provided at the bottom of the guardrail upright, and the mounting chassis and the guardrail upright are an integrated structure.

[0015] Preferably, a bearing is fixed inside the sleeve ring block by means of nail-free glue, and the sleeve ring block is movably connected to the guardrail upright via the bearing.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model uses a movable connection between a bearing and a guardrail upright, so that the displacement between two adjacent guardrail uprights can be adjusted. After the displacement is adjusted to meet the installation position of the spiral staircase guardrail, the guardrail upright is grounded and installed through the bottom mounting chassis, and then the thin steel plate is connected to the hollow groove inside the guardrail upright, and the top pressure cap is pushed by the reset spring to position the thin steel plate to prevent the thin steel plate from shaking, so that the thin steel plate is synchronously bent and positioned according to the curved installation requirements of the spiral staircase, thereby overcoming the problem that the existing spiral staircase uses a steel plate structure as a stair guardrail for protection, but the simple steel plate structure cannot meet the guardrail strength requirements of the spiral staircase, and the bending and shaping operation during the installation of the steel plate is inconvenient, resulting in the inconvenience of installing the spiral staircase guardrail.

[0018] 2. The inner lining rod moves inside the guide cavity, so that the connecting rod can move through the through hole and the inner lining rod guide, thereby adjusting the distance between two adjacent guardrail uprights, further meeting the installation requirements of spiral staircases, and improving the convenience of steel plate guardrail installation. The height of the handrail seat can be adjusted through the movable connection between the threaded end and the top screw cavity to meet the height requirements of indoor occupants. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the steel plate guardrail of a spiral staircase that is easy to install in the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the guardrail upright pole and the top seat pole of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure of the connecting rod and the lining rod of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the hollow through-groove of the utility model;

[0023] In the figure: 1. Guardrail upright; 2. Mounting chassis; 3. Thin steel plate; 4. Limiting ring plate; 5. Socket ring block; 6. Connecting rod; 7. Top seat rod; 8. Handrail seat; 9. Hollow through groove; 10. Top pressure cap; 11. Top screw cavity; 12. Threaded end; 13. Movable connecting rod; 14. Guide cavity; 15. Lining rod; 16. Limiting block; 17. Through hole; 18. Bearing; 19. Spring loading groove; 20. Return spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a spiral staircase steel plate guardrail that is easy to install, including a guardrail upright 1, two limit ring plates 4 are arranged on the outer wall of the guardrail upright 1, the two limit ring plates 4 and the guardrail upright 1 are an integral structure, a sleeve ring block 5 is sleeved between the two limit ring plates 4, two connecting rods 6 are arranged between the two sleeve ring blocks 5, and the two connecting rods 6 are respectively welded to the outer walls of the two sleeve ring blocks 5;

[0026] Also includes:

[0027] A top seat rod 7 is arranged at the top position of the guardrail upright 1, and a top screw cavity 11 is arranged inside the top seat rod 7, a threaded end 12 is movably arranged inside the top screw cavity 11, and a movable connecting rod 13 is welded at the center position of the upper end of the threaded end 12, and the movable connecting rod 13 is movably connected with the top screw cavity 11 through the threaded end 12;

[0028] A guide cavity 14 is disposed inside the connecting rod 6, and a through hole 17 is disposed at one end of the guide cavity 14, the through hole 17 is connected to the inside of the guide cavity 14, and an inner lining rod 15 is movably disposed inside the through hole 17;

[0029] The hollow through groove 9 is arranged inside the guardrail upright pole 1 , and a thin steel plate 3 is penetrated inside the hollow through groove 9 .

[0030] When in use, the movable connection between the bearing and the guardrail uprights allows the steering adjustment displacement between two adjacent guardrail uprights. After the displacement is adjusted to the installation position that meets the spiral staircase guardrail, the guardrail uprights are grounded and installed through the bottom mounting chassis, and then the thin steel plate is connected to the hollow groove inside the guardrail uprights, and the top pressure cap is pushed by the reset spring to position the thin steel plate to prevent the thin steel plate from shaking, so that the thin steel plate can be synchronously bent and positioned according to the curved installation requirements of the spiral staircase.

[0031] See also Figure 4 A spring-loading groove 19 is arranged on the inner wall of the hollow groove 9, and a return spring 20 is arranged inside the spring-loading groove 19. A top pressure cap 10 is arranged at one end of the return spring 20. The top pressure cap 10 is in contact with the thin steel plate 3. The spring-loading groove 19 arranged on the inner wall of the hollow groove 9 plays the role of carrying the return spring 20.

[0032] See also Figure 3 The two ends of the lining rod 15 are welded with limit blocks 16, the size of the limit blocks 16 is larger than the diameter of the through hole 17, and the limit blocks 16 welded at both ends of the lining rod 15 play a role in assisting the lining rod 15 to limit and prevent it from falling off.

[0033] See also Figure 2The upper end of the movable connecting rod 13 is provided with an armrest seat 8, and the armrest seat 8 and the movable connecting rod 13 are an integral structure. The armrest seat 8 provided at the upper end of the movable connecting rod 13 plays a role in facilitating hand-holding down the stairs.

[0034] See also Figure 1 A mounting chassis 2 is provided at the bottom of the guardrail upright 1. The mounting chassis 2 and the guardrail upright 1 are an integrated structure. The mounting chassis 2 provided at the bottom of the guardrail upright 1 serves to facilitate the grounding installation of the guardrail upright 1.

[0035] See also Figure 3 A bearing 18 is fixed inside the sleeve ring block 5 by nail-free glue, and the sleeve ring block 5 is movably connected to the guardrail upright 1 through the bearing 18. The bearing 18 fixed inside the sleeve ring block 5 by nail-free glue plays a role in auxiliary movable connection.

[0036] Working principle: When in use, the bearing 18 is movably connected to the guardrail upright 1, so that the adjacent guardrail uprights 1 can be steered and adjusted. After the displacement is adjusted to the installation position that meets the spiral staircase guardrail, the guardrail upright 1 is grounded and installed through the bottom mounting chassis 2, and then the thin steel plate 3 is connected to the hollow groove 9 inside the guardrail upright 1, and the top pressure cap 10 is pushed by the reset spring 20 to position the thin steel plate 3 to prevent the thin steel plate 3 from shaking, so that the thin steel plate 3 is synchronously bent and positioned according to the curved installation requirements of the spiral staircase, and the lining rod 15 is movable in the guide cavity 14, so that the connecting rod 6 can be guided and moved with the lining rod 15 through the through hole 17, thereby adjusting the distance between the adjacent guardrail uprights 1, further meeting the installation requirements of the spiral staircase, and improving the convenience of steel plate guardrail installation, and the height of the handrail seat 8 can be adjusted through the movable connection between the threaded end 12 and the top screw cavity 11, so as to meet the height requirements of indoor residents for handholding, and complete the use of the spiral staircase steel plate guardrail that is easy to install.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A spiral staircase steel plate guardrail that is easy to install, comprising a guardrail upright (1), two limiting ring plates (4) are arranged on the outer wall of the guardrail upright (1), the two limiting ring plates (4) and the guardrail upright (1) are an integral structure, a sleeve ring block (5) is sleeved between the two limiting ring plates (4), two connecting rods (6) are arranged between the two sleeve ring blocks (5), and the two connecting rods (6) are respectively welded to the outer walls of the two sleeve ring blocks (5); Features: Also includes: A top seat rod (7) is arranged at the top position of the guardrail upright rod (1), and a top screw cavity (11) is arranged inside the top seat rod (7), a threaded end (12) is movably arranged inside the top screw cavity (11), a movable connecting rod (13) is welded at the center position of the upper end of the threaded end (12), and the movable connecting rod (13) is movably connected to the top screw cavity (11); A guide cavity (14) is arranged inside the connecting rod (6), and a through hole (17) is arranged at one end of the guide cavity (14), the through hole (17) is connected to the inside of the guide cavity (14), and an inner lining rod (15) is movably arranged inside the through hole (17); A hollow through groove (9) is arranged inside the guardrail upright pole (1), and a thin steel plate (3) is penetrated and arranged inside the hollow through groove (9).

2. The spiral staircase steel plate guardrail that is easy to install according to claim 1 is characterized by: A spring-loaded groove (19) is arranged on the inner wall of the hollow through groove (9), a return spring (20) is arranged inside the spring-loaded groove (19), a top pressure cap (10) is arranged at one end of the return spring (20), and the top pressure cap (10) contacts and abuts against the thin steel plate (3).

3. The spiral staircase steel plate guardrail that is easy to install according to claim 1 is characterized by: Limit blocks (16) are welded at both ends of the lining rod (15), and the size of the limit blocks (16) is larger than the diameter of the penetration hole (17).

4. The spiral staircase steel plate guardrail that is easy to install according to claim 1 is characterized by: An armrest seat (8) is arranged at the upper end of the movable connecting rod (13), and the armrest seat (8) and the movable connecting rod (13) are an integral structure.

5. The easy-to-install spiral staircase steel plate guardrail according to claim 1 is characterized in that: A mounting chassis (2) is provided at the bottom of the guardrail upright pole (1), and the mounting chassis (2) and the guardrail upright pole (1) are an integrated structure.

6. The spiral staircase steel plate guardrail that is easy to install according to claim 1 is characterized by: A bearing (18) is fixedly arranged inside the sleeve ring block (5) by means of nail-free glue, and the sleeve ring block (5) is movably connected to the guardrail upright pole (1) via the bearing (18).

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