Adjustable temporary protective barrier for stairs

Abstract

The utility model relates to the technical field of handrails, and discloses an adjustable stair temporary protective handrail which comprises a plurality of cylindrical vertical rods, the cylindrical vertical rods are arranged in order, the bottom end of each cylindrical vertical rod is fixedly connected with a mounting base, and the bottom end of each cylindrical vertical rod is fixedly connected with a connecting rod. A plurality of hollow cylinders are fixedly welded to the side face of the cylindrical vertical rod located on the leftmost side, and a plurality of round rods are fixedly welded to the side face of the cylindrical vertical rod located on the rightmost side. According to the designed handrail, the length can be adjusted, a user can hold the rotary handle to rotate, at the moment, the threaded rod rotates in the threaded hole in the hollow cylinder, the threaded rod is connected with the arc-shaped piece through the bearing, and the arc-shaped piece is arranged on the upper half portion of the round rod in a sleeving mode, so that the arc-shaped piece can move in the vertical direction; the inner wall of the arc-shaped piece can not make contact with the upper portion of the round rod, and therefore the length of the protective handrail can be manually adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of railings, and more specifically discloses an adjustable temporary protective railing for stairs. Background Art

[0002] Railings were called langans or hook railings in ancient China. They are safety facilities on bridges and buildings. Railings play the role of separation, guidance and protection in use, making the boundaries of the divided areas clear and distinct. In the Han Dynasty, horizontal lattice railings were the most common, and hook railings were popular in the Six Dynasties. The wooden railings of the Yuan, Ming and Qing dynasties were relatively slender, while stone railings gradually broke away from the shape of wooden railings and tended to be thicker. After the late Qing Dynasty, railings with Western classical proportions, scales and decorations entered China. Modern railings have more diverse materials and shapes.

[0003] When temporarily protecting stairs, handrails are used for safety reasons. However, traditional handrails are fixed in length and cannot be adjusted appropriately according to the length of the stairs. In addition, traditional handrails are manually transported to transport vehicles and then transported to other locations, which is inefficient.

[0004] Therefore design a kind of adjustable stair temporary protection railing. Utility Model Content

[0005] The utility model provides an adjustable temporary staircase protective railing, which can solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, according to one aspect of the utility model, more specifically, an adjustable temporary staircase guardrail comprises a cylindrical upright, wherein the number of the cylindrical uprights is several, the cylindrical uprights are arranged neatly, the bottom end of each cylindrical upright is fixedly connected to a mounting seat, a plurality of hollow cylinders are welded and fixed to the side of the cylindrical upright on the far left, a plurality of round rods are welded and fixed to the side of the cylindrical upright on the far right, another round rod is fixedly connected to one side of the plurality of cylindrical uprights in the middle, and a plurality of cylindrical uprights in the middle are fixedly connected to the other round rods. Another hollow cylinder is fixedly connected to the other side of the cylindrical upright, and the round rod on the left side of the cylindrical upright penetrates the interior of the hollow cylinder on the right side of the cylindrical upright, and the round rod is slidably connected to the hollow cylinder, a rope threading piece is welded and fixed to the front surface of each cylindrical upright, a movable component is installed on one side of the cylindrical upright on the far left, a flat wide braided belt is connected to one side of the movable component, a T-shaped screw is inserted into the through hole on one side of the surface of the flat wide braided belt, and a nut is fixedly connected to the rear surface of the cylindrical upright on the far left.

[0007] Furthermore, a ball is fixedly connected to the top of each cylindrical pole.

[0008] Furthermore, a knob assembly is installed between the hollow cylinder and the round rod, and the knob assembly includes a handle, a threaded hole, a bearing, an arc-shaped piece and a threaded rod. The threaded hole is opened on the right side of the upper surface of the hollow cylinder, the inner wall of the threaded hole is threadedly connected to the threaded rod, the top of the threaded rod is fixedly connected to the handle, and the lower part of the threaded rod is rotatably connected to the arc-shaped piece through the bearing, and the arc-shaped piece is attached to the outer wall of the round rod.

[0009] Furthermore, the nut is adapted to the T-shaped screw.

[0010] Furthermore, the movable component includes a concave bar, a metal buckle and a connecting rod. Two of the concave bars are welded and fixed to the left side of the cylindrical upright at the far left. A connecting rod is rotatably connected inside the two concave bars. The metal buckle is welded and fixed on the left side of the connecting rod, and the flat wide braided belt is sewn inside the metal buckle.

[0011] Furthermore, a plurality of circular holes are integrally formed on the lower surface of the mounting seat.

[0012] Furthermore, the arc-shaped sheet is located inside the hollow cylinder, and the highest position of the outer wall of the arc-shaped sheet is not in contact with the upper part of the inner wall of the hollow cylinder.

[0013] The beneficial effects of the adjustable temporary staircase guardrail of the utility model are:

[0014] The handrail designed by the utility model can be adjusted in length. The user can hold the rotary handle and turn it. At this time, the threaded rod rotates in the threaded hole on the hollow cylinder. Since the threaded rod and the arc-shaped piece are connected by a bearing, and the arc-shaped piece is sleeved on the upper half of the round rod, the arc-shaped piece can move in the vertical direction, and the inner wall of the arc-shaped piece may not contact the upper part of the round rod. In this way, the length of the protective handrail can be manually adjusted, and the operation is simple.

[0015] According to the utility model, when the user needs to lift the guardrail for transportation, the user can adjust the guardrail to the shortest, pass one end of the flat wide braided belt through each rope threading piece, pass the flat wide braided belt around the rear of the guardrail, insert the T-shaped screw into the through hole, screw the T-shaped screw on the nut, and hook the hook of the crane on the flat wide braided belt, so that the guardrail can be lifted conveniently and the transportation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2It is an enlarged structural diagram of B of the utility model;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0020] Figure 4 For this utility model Figure 1 A rear view schematic diagram of the external structure;

[0021] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0022] In the figure: 1. sphere; 2. flat wide braided belt; 3. T-shaped screw; 4. cylindrical pole; 5. mounting seat; 6. round hole; 7. hollow cylinder; 8. round rod; 9. handle; 10. threaded hole; 11. arc-shaped piece; 12. rope threading piece; 13. concave strip; 14. metal buckle; 15. connecting rod; 16. nut; 17. bearing; 18. knob assembly; 19. movable assembly; 20. threaded rod. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0024] According to the attached Figure 1-5 , provides an adjustable temporary staircase guardrail, including a plurality of cylindrical uprights 4, the number of which is several, the plurality of cylindrical uprights 4 are neatly arranged, the bottom end of each cylindrical upright 4 is fixedly connected to a mounting seat 5, a plurality of hollow cylinders 7 are welded and fixed to the side of the cylindrical upright 4 on the left, a plurality of round rods 8 are welded and fixed to the side of the cylindrical upright 4 on the right, another round rod 8 is fixedly connected to one side of the plurality of cylindrical uprights 4 in the middle, another hollow cylinder 7 is fixedly connected to the other side of the plurality of cylindrical uprights 4 in the middle, and the left side of the cylindrical upright 4 is fixedly connected to the right side of the cylindrical upright 4. The round rod 8 on the side passes through the interior of the hollow cylinder 7 on the right side of the cylindrical upright 4, and the round rod 8 is slidably connected to the hollow cylinder 7. A rope threading piece 12 is welded and fixed on the front surface of each cylindrical upright 4, and the rope threading piece 12 is in the shape of a U when viewed from the side. A movable component 19 is installed on one side of the cylindrical upright 4 on the far left, and a flat wide braided belt 2 is connected to one side of the movable component 19. A T-shaped screw 3 is inserted into the through hole on one side of the surface of the flat wide braided belt 2, and the T-shaped screw 3 can be taken out from the through hole on the flat wide braided belt 2. A nut 16 is fixedly connected to the rear surface of the cylindrical upright 4 on the far left.

[0025] In this embodiment, a ball 1 is fixedly connected to the top of each cylindrical pole 4 .

[0026] In this embodiment, a knob assembly 18 is installed between the hollow cylinder 7 and the round rod 8. The knob assembly 18 includes a handle 9, a threaded hole 10, a bearing 17, an arc piece 11 and a threaded rod 20. The threaded hole 10 is opened on the right side of the upper surface of the hollow cylinder 7. The inner wall of the threaded hole 10 is threadedly connected with the threaded rod 20. The top of the threaded rod 20 is fixedly connected with the knob 9. The lower part of the threaded rod 20 is rotatably connected with the arc piece 11 through the bearing 17. The arc piece 11 fits the outer wall of the round rod 8; the round rod 8 and the hollow cylinder 7 can slide between each other. After the length of the round rod 8 and the hollow cylinder 7 is adjusted, the user can hold the knob 9 and rotate it in the opposite direction. At this time, the arc piece 11 moves downward and presses on the round rod 8. In this way, shaking between the round rod 8 and the hollow cylinder 7 is avoided and both are stable.

[0027] In this embodiment, the nut 16 is matched with the T-shaped screw rod 3, and the T-shaped screw rod 3 can be screwed onto the nut 16, so that the two are installed together.

[0028] In this embodiment, the movable component 19 includes a concave bar 13, a metal buckle 14 and a connecting rod 15. Two concave bars 13 are welded and fixed on the left side of the cylindrical upright 4 on the far left. A connecting rod 15 is rotatably connected inside the two concave bars 13. A metal buckle 14 is welded and fixed on the left side of the connecting rod 15. A flat wide braided belt 2 is sewn inside the metal buckle 14. A through hole is integrally formed on one side of the flat wide braided belt 2, and the through hole is designed for inserting a T-shaped screw 3.

[0029] In this embodiment, a plurality of circular holes 6 are integrally formed on the lower surface of the mounting seat 5 , and the mounting seat 5 is used to be fixed at a staircase position.

[0030] In this embodiment, the arc-shaped piece 11 is located inside the hollow cylinder 7, and the highest position of the outer wall of the arc-shaped piece 11 is not in contact with the upper part of the inner wall of the hollow cylinder 7. Figure 5 As shown, the arc-shaped piece 11 is made of metal.

[0031] The working principle of this device is:

[0032] To adjust the length of the guardrail according to the length of the stairs, the user can hold the handle 9 and turn it. At this time, the threaded rod 20 rotates in the threaded hole 10 on the hollow cylinder 7. Since the threaded rod 20 is connected to the arc piece 11 through the bearing 17, and the arc piece 11 is sleeved on the upper half of the round rod 8, the arc piece 11 gradually moves upward, and the inner wall of the arc piece 11 does not contact the top of the round rod 8. The user holds the two cylindrical uprights 4 and pulls to adjust the length. After the length of the round rod 8 and the hollow cylinder 7 is adjusted, the user can hold the handle 9 and turn it in the opposite direction. At this time, the arc piece 11 moves downward and presses on the round rod 8. In this way, shaking between the round rod 8 and the hollow cylinder 7 is avoided, and both are stable.

[0033] The electrical components that appear in this article are all electrical components that exist in reality.

[0034] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. An adjustable temporary staircase guardrail, comprising a cylindrical upright (4), characterized in that: The number of the cylindrical uprights (4) is several, and the several cylindrical uprights (4) are neatly arranged. The bottom end of each cylindrical upright (4) is fixedly connected to a mounting seat (5). The side of the cylindrical upright (4) on the far left is welded with a plurality of hollow cylinders (7), and the side of the cylindrical upright (4) on the far right is welded with a plurality of round rods (8). One side of the plurality of cylindrical uprights (4) in the middle is fixedly connected to another round rod (8), and the other side of the plurality of cylindrical uprights (4) in the middle is fixedly connected to another hollow cylinder (7), and the cylindrical uprights (4) are fixedly connected to the outer surface of the cylindrical uprights (4). ) on the left side passes through the interior of the hollow cylinder (7) on the right side of the cylindrical upright (4), and the round rod (8) is slidably connected to the hollow cylinder (7), a rope threading piece (12) is welded and fixed on the front surface of each cylindrical upright (4), a movable component (19) is installed on one side of the cylindrical upright (4) on the far left, a flat wide braided belt (2) is connected to one side of the movable component (19), a T-shaped screw rod (3) is inserted into the through hole on one side of the surface of the flat wide braided belt (2), and a nut (16) is fixedly connected to the rear surface of the cylindrical upright (4) on the far left.

2. The adjustable temporary staircase guardrail according to claim 1, characterized in that: A sphere (1) is fixedly connected to the top end of each cylindrical upright pole (4).

3. The adjustable temporary staircase guardrail according to claim 1, characterized in that: A knob assembly (18) is installed between the hollow cylinder (7) and the round rod (8), and the knob assembly (18) comprises a handle (9), a threaded hole (10), a bearing (17), an arc-shaped piece (11) and a threaded rod (20). The threaded hole (10) is provided on the right side of the upper surface of the hollow cylinder (7), the threaded rod (20) is threadedly connected to the inner wall of the threaded hole (10), the handle (9) is fixedly connected to the top of the threaded rod (20), and the arc-shaped piece (11) is rotatably connected to the lower part of the threaded rod (20) through the bearing (17), and the arc-shaped piece (11) is attached to the outer wall of the round rod (8).

4. The adjustable temporary staircase guardrail according to claim 1, characterized in that: The nut (16) is compatible with the T-shaped screw (3).

5. The adjustable temporary staircase guardrail according to claim 1, characterized in that: The movable component (19) comprises a concave strip (13), a metal buckle (14) and a connecting rod (15); two concave strips (13) are welded and fixed to the left side of the cylindrical upright (4) on the far left; a connecting rod (15) is rotatably connected inside the two concave strips (13); the metal buckle (14) is welded and fixed to the left side of the connecting rod (15); and the flat wide braided belt (2) is sewn inside the metal buckle (14).

6. The adjustable temporary staircase guardrail according to claim 1, characterized in that: A plurality of circular holes (6) are integrally formed on the lower surface of the mounting seat (5).

7. The adjustable temporary staircase guardrail according to claim 3, characterized in that: The arc-shaped sheet (11) is located inside the hollow cylinder (7), and the highest position of the outer wall of the arc-shaped sheet (11) is not in contact with the upper part of the inner wall of the hollow cylinder (7).

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