A spiral staircase with protective function

Abstract

The utility model relates to the technical field of spiral staircases, and discloses a spiral staircase with a protective function, comprising a column body, a plurality of pedals fixed around the surface of the column body, and a guardrail, and also includes: a plurality of pull rods fixed on the top of the guardrail, a movable groove is opened at the bottom of the pedal, and a support plate is rotatably connected inside the movable groove; a limiting structure is arranged at the front and rear sides of the movable groove and is used to limit the support plate; the utility model can rotate the support plate out from the inside of the movable groove and be located at the bottom of the upper pedal, so that it is fixed by a fixing bolt, thereby improving the stability of the support between the upper and lower pedals, and further improving the protective effect. At the same time, through the arrangement of the pull rod, it is convenient for people with limited mobility, and they can pull the pull rod to generate a certain force, so as to facilitate going up and down the stairs and prevent the hands from slipping when holding the guardrail to go up and down the stairs.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral staircases, in particular to a spiral staircase with a protective function. Background Art

[0002] Stairs are used as components for vertical transportation between floors. They are used for transportation between floors and when there is a large height difference. Stairs should also be installed in multi-story and high-rise buildings that have elevators and escalators as the main means of vertical transportation. Although high-rise buildings use elevators as the main means of vertical transportation, they still need to retain stairs for escape in case of fire. Stairs are composed of a flight of continuous steps (also called stair runs), a platform (resting platform) and enclosure components. The horizontal projection distance between the lowest and highest steps of the staircase is the stair length, and the total height of the steps is the stair height. A spiral staircase is also a type of staircase.

[0003] Some people often use wooden spiral staircases in their homes for the convenience and beauty of the spiral staircases. Most wooden spiral staircases are fixed on the columns piece by piece, and there is a certain distance between the upper and lower pedals, which leads to poor supporting effect. Over time, it affects the subsequent use. In addition, the guardrails of the stairs are mostly round. When going up and down the stairs by hand, there is no force point, which makes the hands easily slip on the top surface of the guardrail. Utility Model Content

[0004] The utility model aims to provide a spiral staircase with a protective function to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a spiral staircase with a protective function, comprising a column body, a plurality of pedals and a guardrail surrounding and fixed on the surface of the column body, and also comprising:

[0006] A plurality of pull rods are fixed on the top of the guardrail, and a movable groove is provided at the bottom of the pedal, and a support plate is rotatably connected inside the movable groove;

[0007] A limiting structure provided at the front and rear of the movable groove and used for limiting the position of the support plate;

[0008] A screw hole is provided at the top end of the support plate, and a fixing bolt is movably connected inside the pedal, and the other end of the fixing bolt cooperates with the inside of the support plate for use.

[0009] Preferably, the limiting structure includes limiting grooves opened at the front and rear sides of the movable groove, a spring fixed at one end of the limiting groove and a limiting ball fixed at the other end of the spring, and the other end of the limiting ball is used in conjunction with two sides of the support plate.

[0010] Preferably, sliding grooves are provided on both sides of the limiting groove, a sliding block is slidably connected inside the sliding groove, and one side of the sliding block is fixed to the outer side of the limiting ball.

[0011] Preferably, a groove is formed on the top of the pedal, and the top of the fixing bolt is located inside the groove.

[0012] Preferably, the surface of the pull rod is sleeved with a soft pad, and the soft pad is made of rubber.

[0013] Preferably, the height between the upper and lower pedals is greater than the length of the support plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can rotate the support plate out from the inside of the movable groove and be located at the bottom of the upper pedal, so as to be fixed by a fixing bolt, thereby improving the stability of the support between the upper and lower pedals, further improving the protective effect, and at the same time, through the setting of the pull rod, it is convenient for people with limited mobility to pull the pull rod to generate a certain force, thereby facilitating going up and down the stairs and preventing the hands from slipping when holding the guardrail to go up and down the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure in the present utility model when viewed from above;

[0018] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure after partial separation in the utility model;

[0020] Figure 5 For this utility model Figure 4 A partial enlarged view of point A in the middle.

[0021] In the figure: 1. column body; 2. pedal; 3. guardrail; 4. pull rod; 5. cushion; 6. movable groove; 7. support plate; 8. limiting structure; 81. limiting groove; 82. spring; 83. limiting ball; 9. slide groove; 10. slider; 11. fixing bolt; 12. groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 As shown, a spiral staircase with a protective function comprises a column body 1, a plurality of pedals 2 are fixed around the surface of the column body 1, a guardrail 3 is arranged above the other end of the pedal 2, a plurality of pull rods 4 are fixed on the top of the guardrail 3, a movable groove 6 is provided at the bottom of the pedal 2, a support plate 7 is rotatably connected inside the movable groove 6, limiting structures 8 for limiting the support plate 7 are arranged at the front and rear sides inside the movable groove 6, a screw hole is provided at the top end of the support plate 7, a fixing bolt 11 is movably connected inside the pedal 2, and the other end of the fixing bolt 11 cooperates with the inside of the support plate 7 for use.

[0024] The limiting structure 8 includes a limiting groove 81, a spring 82 and a limiting ball 83. The limiting groove 81 is opened at the front and rear sides of the movable groove 6. One end of the spring 82 is fixed to the inner wall of the limiting groove 81, and the other end of the spring 82 is fixed to one side of the limiting ball 83. The other end of the limiting ball 83 is used in conjunction with the two sides of the support plate 7. In this way, when the support plate 7 is received in the movable groove 6, the elastic force of the spring 82 itself can drive the limiting ball 83 to always move outward and enter the interior of the support plate 7, thereby limiting it and preventing it from being rotated out at will.

[0025] Slide grooves 9 are provided on both sides of the limiting groove 81, and a slider 10 is slidably connected inside the slide groove 9. One side of the slider 10 is fixed to the outer side of the limiting ball 83, so as to provide auxiliary support for the limiting ball 83 and maintain its stability during movement.

[0026] A groove 12 is formed at the top of the pedal 2 , and the top of the fixing bolt 11 is located inside the groove 12 , so that the fixing bolt 11 will not protrude from the top surface of the pedal 2 when fixing the support plate 7 .

[0027] The surface of the pull rod 4 is sleeved with a soft pad 5, and the soft pad 5 is made of rubber, so that the user's hands can be protected to prevent pain in the hands.

[0028] The height between the upper and lower pedals 2 is greater than the length of the support plate 7 , so that the support plate 7 can be rotated out conveniently without affecting the subsequent fixation with other pedals 2 .

[0029] Working principle: When in use, in order to improve the stability of the pedal 2 during use, the support plate 7 can be unscrewed from the inside of the movable groove 6, and then the other end of the support plate 7 can be rotated to the bottom of the upper pedal 2, and then the fixing bolt 11 can be screwed into the inside of the groove 12, and the support plate 7 can be fixed, thereby improving the stability of the subsequent pedal 2 when supporting, further improving the protective effect, and when people with limited mobility use it, in order to facilitate climbing stairs, they can hold the pull rod 4 during the process of climbing the stairs, so that there can be an upward pulling force, which is convenient for others to use.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral staircase with a protective function, comprising a column body (1), a plurality of pedals (2) fixed around the surface of the column body (1), and a guardrail (3), characterized in that: Also includes: A plurality of pull rods (4) are fixed on the top of the guardrail (3); a movable groove (6) is provided at the bottom of the pedal (2); a support plate (7) is rotatably connected inside the movable groove (6); A limiting structure (8) disposed at the front and rear sides of the movable groove (6) and used to limit the support plate (7); A screw hole is provided at the top end of the support plate (7), and a fixing bolt (11) is movably connected inside the pedal (2), and the other end of the fixing bolt (11) cooperates with the inside of the support plate (7).

2. A spiral staircase with protective function according to claim 1, characterized in that: The limiting structure (8) comprises a limiting groove (81) provided at the front and rear sides of the movable groove (6), a spring (82) fixed at one end of the limiting groove (81), and a limiting ball (83) fixed at the other end of the spring (82); the other end of the limiting ball (83) cooperates with two sides of the support plate (7) for use.

3. The spiral staircase with protective function according to claim 2, characterized in that: Slide grooves (9) are provided on both sides of the limiting groove (81), a sliding block (10) is slidably connected inside the sliding groove (9), and one side of the sliding block (10) is fixed to the outer side of the limiting ball (83).

4. The spiral staircase with protective function according to claim 1, characterized in that: A groove (12) is provided on the top of the pedal (2), and the top of the fixing bolt (11) is located inside the groove (12).

5. The spiral staircase with protective function according to claim 1, characterized in that: The surface of the pull rod (4) is sleeved with a soft pad (5), and the soft pad (5) is made of rubber.

6. The spiral staircase with protective function according to claim 1, characterized in that: The height between the upper and lower pedals (2) is greater than the length of the support plate (7).

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