Cabin roof overturning guardrail

Abstract

The utility model discloses a cabin top turnover guardrail which comprises a door-shaped guardrail, door-shaped guardrail turnover mechanisms and two door-shaped guardrail lodging locking clamps, the door-shaped guardrail turnover mechanisms are arranged between the lower ends of vertical rods on the two sides of the door-shaped guardrail and the cabin top of a square cabin respectively, each door-shaped guardrail turnover mechanism comprises a base, a hinge pin and a limiting nut, and a guide groove is formed in the middle of the base in the vertical direction. The bottom of the base is fixed to the outer edges of container corner fittings at the two corners of the cabin top of the vehicle-mounted square cabin respectively. Hinge pieces of the base are inserted into the bottoms of the vertical rods, hinge pins transversely penetrate through the lower ends of the vertical rods and the guide grooves, so that the lower ends of the vertical rods are hinged to the upper portion of the base, and the bottoms of the elastic pipe clamps are fixed to the cabin roof through supporting seats. When the door-shaped guardrail falls down, the two ends of a top cross rod of the door-shaped guardrail are clamped in the elastic pipe clamps respectively. The door-shaped guardrail is simple in structure, the erecting work and the falling storage operation of the door-shaped guardrail are rapid and convenient, and the safety of cabin top workers is ensured.

Description

Technical Field

[0001] The utility model relates to a safety guardrail, in particular to a safety guardrail which is arranged on the roof of a vehicle-mounted square cabin and can be turned over to an upright state for use or can be laid down and locked on the cabin roof, belonging to the technical field of vehicle-mounted square cabin accessories. Background Art

[0002] The vehicle-mounted shelter can be transported with the vehicle and perform various tasks after arriving at the destination. It is increasingly widely used due to its strong mobility, flexible and convenient use. Due to the needs of use, some vehicle-mounted shelters are equipped with equipment and communication antennas on the roof. Personnel need to climb on the roof to install or repair equipment and antennas. In order to ensure the safety of the personnel climbing to the top, a safety guardrail is installed on the roof. However, when the vehicle-mounted shelter is traveling on the road with the carrier or when the carrier is transporting the vehicle-mounted shelter by rail, in order to meet the good passability of bridges and tunnels and the requirements of railway transportation, the guardrail needs to be fixed on the roof after being laid down.

[0003] The existing flip guardrail has a complex structure and cumbersome operation. When it is erected for use, it needs to be supported by diagonal braces and fixed with pins. When it is laid down for storage, it is necessary to tighten the fixing screws, which is very inefficient. Utility Model Content

[0004] The utility model aims to provide a cabin roof flip guardrail which has a simple structure and can quickly and conveniently switch between the erection state and the lying state.

[0005] The utility model is realized through the following technical solutions:

[0006] A roof flip guardrail comprises a gate-shaped guardrail welded from steel pipes, a gate-shaped guardrail flipping mechanism and two gate-shaped guardrail fall-down locking clips, wherein the gate-shaped guardrail flipping mechanisms are respectively arranged between the lower ends of the uprights on both sides of the gate-shaped guardrail and the cabin roof, and comprise a base, a hinge pin and a limit nut, the lower part of the base is cylindrical, a hinge piece with a width smaller than the outer diameter of the cylinder is extended from the center of the upper part of the base, a guide groove extending from the upper part of the hinge piece to the lower part of the base is provided in the middle part of the vertical direction of the base, and the mounting plates at the bottom of the base are respectively fixed on the outer edges of the container corner pieces at the two corners of the cabin roof of the vehicle-mounted cabin; a vertical notch is provided at the lower part of the upright, the hinge piece is aligned with the vertical notch and inserted into the bottom of the upright, the hinge pin crosses the lower end of the upright and the guide groove, so that the lower end of the upright is hinged to the upper part of the base, and one end of the hinge pin is screwed with a limit nut; the bottom of the elastic pipe clamp is respectively fixed on the cabin roof through a support seat; when the gate-shaped guardrail falls down, the two ends of the top cross bar of the gate-shaped guardrail are respectively clamped in the elastic pipe clamp.

[0007] The purpose of the utility model can be further achieved by the following technical measures.

[0008] Furthermore, the difference between the inner diameter d1 of the vertical pole and the outer diameter d2 of the base is: d1-d2=1.5-2.0 mm; the ratio of the vertical notch depth H1 to the hinge width B is: H1 / B=1.36-1.40.

[0009] Furthermore, a rounded corner is provided at the lower end of the vertical pole, and the radius of the rounded corner is greater than or equal to the outer circle radius of the vertical pole.

[0010] Furthermore, the ratio of the vertical notch depth H1 to the step height H2 at the bottom of the base is: H1 / H2=1.23-1.27.

[0011] Furthermore, the elastic tube clamp is in an inverted Ω shape, and the distance A of the top open end of the elastic tube clamp is smaller than the inner diameter D of the lower accommodating portion, and the inner diameter D of the accommodating portion matches the outer diameter of the cross bar.

[0012] When the gate-shaped guardrail of the utility model is inverted and locked on the cabin roof, the gate-shaped guardrail is close to the cabin roof. Whether it is road transportation or rail transportation, the vehicle-mounted cabin can pass through bridges and tunnels smoothly, ensuring the transportation safety of the vehicle-mounted cabin. When deployed for use, after the cross bar on the upper part of the gate-shaped guardrail is separated from the elastic pipe clamp, the gate-shaped guardrail rotates around the pin shaft to a vertical state and then falls down. The base supports the bottom of the vertical rod sleeved thereon and the guide groove guides the hinge pin, so that the gate-shaped guardrail is locked in a vertical working state to ensure the safety of the cabin roof staff. The erection work and the inverted storage of the gate-shaped guardrail are quick and convenient. The utility model has a simple structure and is quick and convenient to operate. In addition to being used in vehicle-mounted cabins, it has a wide range of uses in other application fields that require the retractable guardrails.

[0013] Advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments, which are given as examples only with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the use and storage state of the utility model installed on the cabin roof.

[0015] Figure 2 It is a partial enlarged schematic diagram of the utility model before being turned over and stored.

[0016] Figure 3 It is a partially enlarged schematic diagram of the utility model in use;

[0017] Figure 4 yes Figure 3 AA section view.

[0018] Figure 5 yes Figure 1 Enlarged view of part I. DETAILED DESCRIPTION

[0019] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] As Figures 1 to 5 shown, the present utility model includes a portal guardrail 1 welded by steel pipes, a portal guardrail turning mechanism 2, and two elastic pipe clamps 3 for locking the fallen portal guardrail 1. The portal guardrail turning mechanisms 2 are respectively arranged between the lower ends of the vertical poles 11 on both sides of the portal guardrail 1 and the cabin top 101 of the vehicle-mounted cabin 10, and include a base 21, a hinge pin 22, and a limit nut 23. A bottom plate 211 is welded to the lower part of the cylindrical base 21, and a hinge piece 212 with a width smaller than the outer diameter of the cylinder extends from the center of the upper part of the base 21. A guide groove 213 extending from the upper part of the hinge piece 212 to the lower part of the base 21 is provided in the vertical direction of the base 21 for guiding the movement of the hinge pin 22. The bottom plate 211 is respectively fixed on the outer edges of the container locks 102 at the two corners of the cabin top of the vehicle-mounted cabin 10. A vertical notch 111 is provided at the lower part of the vertical pole 11. After the hinge piece 212 is aligned with the vertical notch 111, it is inserted into the bottom of the vertical pole 11. The hinge pin 22 horizontally passes through the lower end of the vertical pole 11 and the guide groove 213 of the hinge piece 212, so that the lower end of the vertical pole 111 is hinged to the upper part of the base 21, and the hinge pin 22 is axially locked by the limit nut 23 screwed on one end of the hinge pin 22.

[0021] As Figure 4 shown, in this embodiment, the difference between the inner diameter d1 of the vertical pole and the outer diameter d2 of the base: d1 - d2 = 1.8 mm, which is convenient for the lower end of the vertical pole 11 to slide down and sleeve on the base 21, so that the vertical pole 11 vertically supported on the bottom plate 211 can be stably and reliably supported, thereby reliably ensuring the safety of the portal guardrail 1 in the working state; it is also convenient to pull up the portal guardrail 1, so that the bottom of the vertical pole 11 is separated from the lower part of the base 21, which is convenient for the portal guardrail 1 to be turned into a fallen and stored state. The ratio of the depth H1 of the vertical notch to the width B of the hinge piece: H1 / B = 1.38, which is convenient for the upper end of the hinge piece 212 to extend out of the vertical notch 111 when the portal guardrail 1 falls.

[0022] As Figure 1 shown, a fillet is provided at the lower end of the vertical pole 11, and the radius of the fillet is greater than or equal to the outer radius of the vertical pole 11. Such a structure ensures that there is no interference between the vertical pole 11 when it falls or stands up and the base 2.

[0023] As Figure 2 shown, in this embodiment, the ratio of the depth H1 of the vertical notch to the step height H2 of the lower part of the base: H1 / H2 = 1.25, so that the vertical pole 11 can be supported on the bottom plate 211 after it falls, to ensure the stability of the portal guardrail 1 in the standing working state.

[0024] As Figure 1 and Figure 3As shown, the bottom of the elastic pipe clamp 3 is fixed on the cabin roof through the support seat 31. The support seat 31 is made of a steel plate with a thickness of 2.0 mm and bent into a "F" shape. The elastic pipe clamp 3 is in an inverted Ω shape. The distance A of the top opening end of the elastic pipe clamp 3 is smaller than the inner diameter D of the lower receiving part. The inner diameter D of the receiving part matches the outer diameter d1 of the crossbar. When the gate-shaped guardrail 1 falls over, the two ends of the top crossbar 12 of the gate-shaped guardrail 1 are respectively clamped in the elastic pipe clamp 3. Such a structure allows the fallen gate-shaped guardrail 1 to be effectively locked. When driving on the road or transporting by rail, the top crossbar 12 of the gate-shaped guardrail 1 will not be separated from the elastic pipe clamp 3.

[0025] In addition to the above-mentioned embodiments, the present invention may also have other implementation modes. Any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.

Claims

1. A cabin top flip-up guardrail, characterized in that, It includes a portal guardrail welded by steel pipes, a portal guardrail flipping mechanism and two portal guardrail lodging locking clamps. The portal guardrail flipping mechanism is respectively arranged between the lower ends of the vertical poles on both sides of the portal guardrail and the top of the mobile cabin, and includes a base, a hinge pin and a limit nut. The lower part of the base is cylindrical, and a hinge piece with a width smaller than the outer diameter of the cylinder extends from the center of the upper part of the base. A guide groove extending from the upper part of the hinge piece to the lower part of the base is provided in the middle of the base in the vertical direction. The mounting plates at the bottom of the base are respectively fixed on the outer edges of the container corner fittings at the two corners of the top of the vehicle-mounted mobile cabin; a vertical notch is provided at the lower part of the vertical pole. After the hinge piece is aligned with the vertical notch, it is inserted into the bottom of the vertical pole. The hinge pin horizontally passes through the lower end of the vertical pole and the guide groove, so that the lower end of the vertical pole is hinged to the upper part of the base, and a limit nut is screwed at one end of the hinge pin; the bottom parts of the elastic pipe clamps are respectively fixed on the top of the cabin through support seats; when the portal guardrail lodges, the two ends of the top cross bar of the portal guardrail are respectively clamped in the elastic pipe clamps.

2. The overhead flip guardrail according to claim 1, wherein The difference between the inner diameter d1 of the vertical pole and the outer diameter d2 of the base: d1 - d2 = 1.5 - 2.0 mm; the ratio of the depth H1 of the vertical notch to the width B of the hinge piece: H1 / B = 1.36 - 1.

40.

3. The overhead flip guardrail according to claim 1, wherein The lower end of the vertical pole is provided with a fillet, and the radius of the fillet is greater than or equal to the outer radius of the vertical pole.

4. The overhead flip guardrail according to claim 1, wherein The ratio of the depth H1 of the vertical notch to the step height H2 of the lower part of the base: H1 / H2 = 1.23 - 1.

27.

5. The overhead flip guardrail according to claim 1, characterized in that, The elastic pipe clamp is in an inverted Ω shape, the distance A between the open ends at the top of the elastic pipe clamp is smaller than the inner diameter D of the lower accommodating part, and the inner diameter D of the accommodating part matches the outer diameter of the cross bar.

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