Turnover type car roof guardrail

Abstract

The utility model provides a turnover type car top guardrail, which relates to the technical field of elevator car maintenance equipment, and comprises a car top plane, a toe guard is arranged on the car top plane, two handrails are symmetrically and fixedly connected on the car top plane, the handrails are U-shaped, two middle handrails are symmetrically hinged to the top edges of the handrails, and the middle handrails are arranged on the car top plane. When the middle handrail and the back handrail rotate to the side edge of the handrail, the telescopic end of the electric telescopic rod is inserted into the through hole in the middle handrail through extension of the electric telescopic rod, the middle handrail can be prevented from rotating and swinging, when the electric telescopic rod is extended, the traction rope is released, and when the traction rope is released, the elastic contraction of the spring rod is utilized to enable the electric telescopic rod to rotate. The inserting plates can be driven to penetrate through the inserting grooves in the middle handrail and extend to be attached to the side edge of the back handrail, and the back handrail can be prevented from rotating and swinging.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car maintenance equipment, in particular to a flip-type car top guardrail. Background Art

[0002] The elevator car is a box-shaped space used by the elevator to carry and transport people and materials, and guardrails are usually installed on the top of the elevator car for maintenance personnel to perform regular maintenance of the elevator.

[0003] For example, a car top guardrail in the prior art (publication number: CN212740282U) is provided, in which a plurality of upper beams are installed on the car top, a C-shaped base is installed on the upper beams, a column is installed on the C-shaped base, and then a top cross bar and a middle cross bar are installed on the column, and then a bracket is connected with the top cross bar or the middle cross bar by bolts, so that the guardrail is installed and fixed as a whole;

[0004] However, the height of the guardrail in the prior art depends on the height of the column, and the height of the column cannot be adjusted according to the distance between the car top and the top floor, which will affect the lifting of the car. Therefore, the applicant proposes a flip-type car top guardrail with adjustable guardrail height. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a flip-type car top guardrail.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flip-up car roof guardrail, including a car roof plane, a toe board is arranged on the car roof plane, and two handrails are symmetrically fixedly connected on the car roof plane, the handrail is U-shaped, and two middle railings are symmetrically hinged on the top edge of the handrail, and a back railing is hinged on the top edge of the handrail between the two middle railings, the middle railings and the back railing are both folded and stored toward the inside of the toe board, and the folding order is to fold and store the middle railings first, and then to fold and store the back railings, and the handrails and the back railings are both provided with limiting mechanisms for fixing the relative positions of the middle railings and the handrails, and the back railings and the middle railings.

[0007] Further: the height of the middle railing and the back railing is half of the height of the handrail, the height of the handrail is not less than 0.70m, and the height of the handrail is not less than 0.7m.

[0008] Further: the limiting mechanism on the back railing includes a bolt threadedly penetrating the back railing and a connecting block fixed on the middle railing, and the bolt is used to penetrate the connecting block.

[0009] Further: the limiting mechanism on the handrail includes two electric telescopic rods symmetrically fixed on the handrail, and a through hole opened on the middle railing, a fixing block is fixedly connected between the cylinder part of the electric telescopic rod and the handrail, and the telescopic end of the electric telescopic rod penetrates the surface of the handrail and is used to pass through the through hole on the middle railing.

[0010] Furthermore: the limiting mechanism on the handrail also includes a plug plate that passes through the handrail, a slot opened on the middle railing and used to plug into the plug plate, a spring rod is fixedly connected between the plug plate and the handrail, and a traction rope is connected between the plug plate and the telescopic end of the electric telescopic rod.

[0011] Furthermore: a traction tube for limiting the moving route of the traction rope is fixedly connected to the handrail.

[0012] Furthermore: the height of the toe guard is not less than 0.1m.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the present utility model, when the free distance between the outer edge of the guardrail handrail and the shaft wall is not greater than 0.85m, the handrail height is not less than 0.70m; when the free distance is greater than 0.85m, the middle railing and the back railing are rotated to the top of the handrail, so that the height of the middle railing on the handrail frame is not less than 1.10m, so as to facilitate the appropriate adjustment of the handrail height according to actual conditions.

[0015] 2. In the utility model, when the middle railing and the back railing are rotated to the side of the handrail, the electric telescopic rod is extended so that the telescopic end of the electric telescopic rod is inserted into the through hole on the middle railing, which can prevent the middle railing from rotating and swinging. When the electric telescopic rod is extended, the traction rope is released. At the same time, the elastic contraction of the spring rod can drive the plug plate to pass through the slot on the middle railing and extend to fit the side of the back railing, which can prevent the back railing from rotating and swinging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a flip-type car top guardrail is proposed for the utility model;

[0017] Figure 2 The utility model proposes a flip-up car top guardrail Figure 1 A rear view structural diagram of ;

[0018] Figure 3 The utility model provides a structural schematic diagram of a flip-type car top guardrail connecting block;

[0019] Figure 4 Schematic diagram of the structure of the traction tube.

[0020] Legend: 1. Car roof plane; 2. Footboard; 3. Handrail; 4. Middle railing; 5. Connecting block; 6. Bolt; 7. Slot; 8. Back railing; 9. Electric telescopic rod; 10. Fixing block; 11. Insert plate; 12. Traction tube; 13. Through hole; 14. Spring rod; 15. Traction rope. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] like Figure 1-4 As shown, a flip-up car top guardrail comprises a car top plane 1, a footboard 2 is arranged on the car top plane 1, and two handrails 3 are symmetrically fixedly connected to the car top plane 1, the handrail 3 is U-shaped, and two middle rails 4 are symmetrically hinged on the top edge of the handrail 3, and a back rail 8 is hinged on the top edge of the handrail 3 between the two middle rails 4, and the middle rails 4 and the back rail 8 are both folded and stored toward the inner direction of the footboard 2, and the folding order is to fold and store the middle rail 4 first, and then fold and store the back rail 8, and the handrail 3 and the back rail 8 are both provided with a limiting mechanism for fixing the relative position of the middle rail 4 and the handrail 3, and the back rail 8 and the middle rail 4;

[0024] like Figure 1 As shown: the height of the middle railing 4 and the back railing 8 is half of the height of the handrail 3, the height of the handrail 3 is not less than 0.70m, and the height of the handrail 3 is not less than 0.7m;

[0025] In this solution: when the free distance between the outer edge of the guardrail handrail 3 and the shaft wall is not greater than 0.85m, the height of the handrail 3 is not less than 0.70m; when the free distance is greater than 0.85m, the middle railing 4 and the back railing 8 are rotated to the top of the handrail 3, so that the height of the handrail 3 plus the middle railing 4 is not less than 1.10m, which is convenient for appropriately adjusting the height of the handrail 3 according to actual conditions.

[0026] like Figure 3 As shown: the limiting mechanism on the back railing 8 includes a bolt 6 threadedly penetrating the back railing 8 and a connecting block 5 fixed on the middle railing 4, and the bolt 6 is used to penetrate the connecting block 5;

[0027] In this solution, when the middle railing 4 and the back railing 8 are rotated to above the handrail 3, the middle railing 4 and the back railing 8 can be connected and fixed on the side close to each other by rotating the bolt 6 through the connecting block 5.

[0028] like Figure 4 As shown: the limiting mechanism on the handrail 3 includes two electric telescopic rods 9 symmetrically fixed on the handrail 3, and a through hole 13 opened on the middle railing 4, a fixing block 10 is fixedly connected between the cylinder part of the electric telescopic rod 9 and the handrail 3, and the telescopic end of the electric telescopic rod 9 penetrates the surface of the handrail 3 and is used to pass through the through hole 13 on the middle railing 4.

[0029] In addition: the limiting mechanism on the handrail 3 also includes a plug plate 11 that passes through the handrail 3, a slot 7 that is opened on the middle railing 4 and is used to be plugged into the plug plate 11, a spring rod 14 is fixedly connected between the plug plate 11 and the handrail 3, and a traction rope 15 is connected between the plug plate 11 and the telescopic end of the electric telescopic rod 9.

[0030] In addition, a traction tube 12 for limiting the moving route of the traction rope 15 is fixedly connected to the handrail 3 .

[0031] In addition: the height of the footboard 2 is not less than 0.1m;

[0032] It should be noted that the electric telescopic rod 9 preferably selects the Chengjia (CHENGJIA) electric push rod (article number: yN6ceyZd), and Figure 4 The state is that the spring rod 14 is in an elongated state, and the distance between the plug plate 11 and the electric telescopic rod 9 is equal to the thickness of the back railing 8:

[0033] In this solution: when the middle railing 4 and the back railing 8 rotate to the side of the handrail 3, the electric telescopic rod 9 is extended so that the telescopic end of the electric telescopic rod 9 is inserted into the through hole 13 on the middle railing 4, which can prevent the middle railing 4 from rotating and swinging. When the electric telescopic rod 9 is extended, the traction rope 15 is released. At the same time, the elastic contraction of the spring rod 14 can drive the plug plate 11 to pass through the slot 7 on the middle railing 4 and extend to fit the side of the back railing 8, which can prevent the back railing 8 from rotating and swinging.

[0034] Working principle: when the free distance between the outer edge of the guardrail handrail 3 and the shaft wall is not more than 0.85m, the middle railing 4 and the back railing 8 do not rotate, but are located inside the handrail 3. At this time, the height of the handrail 3 is not less than 0.70m; when the free distance is greater than 0.85m, the electric telescopic rod 9 contracts, so that the telescopic end of the electric telescopic rod 9 is disengaged from the through hole 13 of the middle railing 4, and at the same time, the traction rope 15 drives the plug plate 11 to move to disengage from the slot 7, and at the same time, the spring rod 14 is elastically stretched, and then the back railing 8 is rotated first to the top of the handrail 3, and then the middle railing 4 is rotated to the top of the handrail 3, and then the bolt 6 is rotated to connect the connecting block 5, so that the height of the handrail 3 plus the middle railing 4 is not less than 1.10m.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A flip-up car top guardrail, comprising a car top plane (1), a footboard (2) being arranged on the car top plane (1), and two handrails (3) being symmetrically fixedly connected to the car top plane (1), characterized in that: The handrail (3) is U-shaped, and two intermediate railings (4) are symmetrically hinged on the top edge of the handrail (3), and a back railing (8) is hinged on the top edge of the handrail (3) between the two intermediate railings (4). The intermediate railings (4) and the back railing (8) are both folded and stored toward the inside of the foot guard (2), and the folding order is to first fold and store the intermediate railings (4) and then fold and store the back railing (8). The handrail (3) and the back railing (8) are both provided with a limiting mechanism for fixing the relative position of the intermediate railing (4) and the handrail (3), and the relative position of the back railing (8) and the intermediate railing (4).

2. The flip-type car roof guardrail according to claim 1 is characterized in that: The height of the middle railing (4) and the back railing (8) is half of the height of the handrail (3), the height of the handrail (3) is not less than 0.70m, and the height of the handrail (3) is not less than 0.7m.

3. The flip-type car roof guardrail according to claim 1 is characterized in that: The limiting mechanism on the back railing (8) comprises a bolt (6) threadedly penetrating the back railing (8) and a connecting block (5) fixed on the middle railing (4), wherein the bolt (6) is used to penetrate the connecting block (5).

4. The flip-type car roof guardrail according to claim 1, characterized in that: The limiting mechanism on the handrail (3) comprises two electric telescopic rods (9) symmetrically fixed on the handrail (3) and a through hole (13) provided on the middle railing (4); a fixing block (10) is fixedly connected between the cylinder part of the electric telescopic rod (9) and the handrail (3); and the telescopic end of the electric telescopic rod (9) penetrates the surface of the handrail (3) and is used to pass through the through hole (13) on the middle railing (4).

5. The flip-up car roof guardrail according to claim 4 is characterized in that: The limiting mechanism on the handrail (3) further comprises a plug plate (11) penetrating the handrail (3), a slot (7) provided on the middle railing (4) and used for plugging into the plug plate (11), a spring rod (14) being fixedly connected between the plug plate (11) and the handrail (3), and a traction rope (15) being connected between the plug plate (11) and the telescopic end of the electric telescopic rod (9).

6. The flip-type car roof guardrail according to claim 5, characterized in that: A traction tube (12) for limiting the moving route of the traction rope (15) is fixedly connected to the handrail (3).

7. The flip-up car roof guardrail according to claim 1 is characterized in that: The height of the foot guard (2) is not less than 0.1 m.

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