Portable platform ladder

Abstract

The utility model discloses a portable platform ladder which comprises a platform, and guardrails are detachably connected to the two side edges of the platform in the length direction. The two ends of the platform in the length direction are detachably connected with a left side ladder and a right side ladder respectively, the left side ladder and the right side ladder comprise fixed ladder sections which are located on the upper portions and detachably connected with the platform respectively, the lower portions of the fixed ladder sections are connected with telescopic ladder sections, and telescopic locking devices are arranged between the fixed ladder sections and the telescopic ladder sections. When the portable platform ladder is used, the guardrails on the platform can be detached firstly, the platform ladder crosses the handrails between the roads or between the bridges from the road or the bridge on one side, the platform ladder is erected between the roads on the two sides or between the two bridges, the guardrails are assembled on the platform after adjustment, and at the moment, the portable platform ladder is constructed. A worker can easily and quickly walk to a road or a bridge on the other side from the platform by crossing a handrail in the middle of the road or the bridge from the road or the bridge on one side, so that the rescue time is greatly shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a portable platform ladder. BACKGROUND

[0002] If rescue is carried out on the highway or bridge, it is necessary to drive a distance from the lane or the bridge and then exit from the next exit and drive into the other lane or the other bridge when rescue is needed on the opposite lane or bridge. If the opposite lane or bridge cannot be passed, it is necessary to find a way to cross from the lane to the other lane or from the bridge to the other bridge. Rescue personnel cannot cross by themselves because there are railings between the two roads or the bridge and bridge, or the roads and roads or the bridges and bridges are overhead. This prolongs the rescue time and delays the rescue.

[0003] The utility model aims at solving how to quickly build a simple and portable platform ladder between two roads or bridges to facilitate rescue and enable rescue personnel to quickly cross from the lane to the other lane or from the bridge to the other bridge to reach the rescue site quickly. SUMMARY

[0004] The utility model aims at overcoming the shortcomings of the prior art, providing a simple, easy to disassemble and install, convenient to carry and transport, and quickly building a rescue passage between two roads or bridges to facilitate rescue personnel to quickly reach the rescue site and implement rescue.

[0005] The utility model is implemented as follows:

[0006] A portable platform ladder comprises a platform, the two sides of the platform in the length direction are detachably connected with railings, the two ends of the platform in the length direction are detachably connected with a left ladder and a right ladder respectively, the left ladder and the right ladder each comprise a fixed ladder section at the upper part and detachably connected with the platform, the lower part of the fixed ladder section is connected with an extension ladder section, and a telescopic locking device is arranged between the fixed ladder section and the extension ladder section.

[0007] The utility model as claimed in claim 1 or 2, wherein the fixed ladder section and the extension ladder section are movably sleeved, the telescopic locking device comprises fixed holes arranged on the two sides of the fixed ladder section, and elastic locking pins which can be inserted into the fixed holes are arranged on the two sides of the extension ladder section.

[0008] The utility model as claimed in claim 1 or 2, wherein the elastic locking pins are telescopically and rotatably fixed on the two sides of the extension ladder section.

[0009] The portable platform ladder has the advantages that the fixed ladder section comprises two fixed ladder support feet at a distance, a plurality of fixed ladder cross bars are connected between the two fixed ladder support feet, the telescopic ladder section comprises two telescopic ladder support feet at a distance, a plurality of telescopic ladder cross bars are connected between the two telescopic ladder support feet, the two telescopic ladder support feet are movably sleeved on the two fixed ladder support feet, the fixed ladder cross bar is a hollow pipe, two fixed ladder support feet are formed on the two sides of the fixed ladder cross bar to form fixed holes, the two telescopic ladder support feet are provided with telescopic foot holes for the elastic locking pins, and the elastic locking pins are arranged on the two sides of one of the telescopic ladder cross bars.

[0010] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0011] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0012] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0013] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0014] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0015] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0016] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws.

[0017] The portable platform ladder has the advantages that the platform connecting plates are arranged on the two sides of the platform in the length direction, the side ladder connecting plates are arranged on the upper two sides of the left side ladder and the right side ladder, and the platform connecting plates and the side ladder connecting plates are fixed through screws. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1is the perspective view of the utility model;

[0019] Figure 2 is the structure view of the utility model after the guardrail is removed;

[0020] Figure 3 is Figure 2 the enlarged view of A part of

[0021] Figure 4 is Figure 2 the enlarged view of B part of

[0022] Figure 5 is the partial structure view of the utility model;

[0023] Figure 6 is Figure 5 the enlarged view of C part of

CONCRETE IMPLEMENTATIONS

[0024] The utility model will be further explained in connection with the drawings:

[0025] A portable platform ladder includes platform 1, the both sides of length direction of platform 1 are detachably connected with guardrail 2;The both ends of length direction of platform 1 are detachably connected with left side ladder 3 and right side ladder 4 respectively, and left side ladder 3 and right side ladder 4 respectively include fixed ladder section 5 located at upper portion and detachably connected with platform, and the lower portion of fixed ladder section 5 is connected with telescopic ladder section 6, and telescopic locking device is arranged between fixed ladder section 5 and telescopic ladder section 6.The utility model is used in, can first remove guardrail 2 on platform 1, and the platform ladder is crossed between the rail between the road or bridge from one side, and the platform ladder is erected between the road between two sides or between two bridges, and guardrail 2 is assembled to platform after adjustment, at this moment, portable platform ladder is built, and staff can easily, quickly cross the rail in the road or bridge from platform from the road or bridge on the other side.The utility model left side ladder 3 and right side ladder 4 are all telescopic, this can adjust the height of left side ladder 3 and right side ladder 4 according to the height of roadside rail or bridge rail, and facilitate crossing.

[0026] The utility model fixed ladder section 5 and telescopic ladder section 6 are movably sleeved, and telescopic locking device includes fixed hole 51 arranged on the both sides of fixed ladder section, and elastic locking pin 7, which can be inserted into the fixed hole, is arranged on the both sides of telescopic ladder section 6.

[0027] The utility model elastic locking pin 7 is telescopically and rotatably fixed on the both sides of telescopic ladder section 6.When the height of left side ladder 3 and right side ladder 4 needs to be adjusted, the elastic locking pin 7 on the both sides is pulled out from fixed hole 51, is rotated by a certain angle, and after adjusting the height of left side ladder 3 and right side ladder 4, the elastic locking pin 7 is rotated by a certain angle and is inserted into another fixed hole 51, to form locking.

[0028] The fixed ladder section 5 comprises two fixed ladder support feet 52 which are apart by a certain distance, and a plurality of fixed ladder cross bars 53 are connected between the two fixed ladder support feet 52; the extension ladder section 6 comprises two extension ladder support feet 61 which are apart by a certain distance, and a plurality of extension ladder cross bars 62 are connected between the two extension ladder support feet 61, and the two extension ladder support feet 61 are movably sleeved on the two fixed ladder support feet 52; the fixed ladder cross bar 53 is a hollow pipe, and two fixed ladder support feet are extended from the two sides of the fixed ladder cross bar 53 to form fixed holes 51; the two extension ladder support feet 61 are provided with extension foot holes 610 through which the elastic locking pins 7 pass, and the elastic locking pins 7 are arranged on the two sides of one of the extension ladder cross bars 62. One end of the elastic locking pin 7 is inserted into the extension ladder cross bar 62 of the extension ladder section 6, and a reset spring (not shown in the figure) which can drive the elastic locking pin 7 to reset is arranged in the cross bar 62, and the other end of the elastic locking pin 7 is extended and bent to form an elbow, and the elbow can be inserted into the fixed hole 51.

[0029] The fixed ladder support foot 52 can be a rectangular hollow structure, the cross section of the extension ladder support foot 61 is half-rectangular and can be wrapped around the lower part of the fixed ladder support foot 52, and the fixed ladder support foot 52 is slightly larger than the extension ladder support foot 61. The fixed ladder support foot 52 can also be circular, and the cross section of the extension ladder support foot 61 is half-circular, and only the extension ladder support foot 61 needs to be wrapped around the lower part of the fixed ladder support foot 52.

[0030] The two side edges of the platform 1 in the length direction are provided with platform connecting plates 11, the upper two sides of the left side ladder 3 and the right side ladder 4 are provided with side ladder connecting plates 31, and the platform connecting plate 11 and the side ladder connecting plate 31 are fixed through screws 32. When connecting the platform with the left side ladder 3 and the right side ladder 4, only the platform connecting plate 11 and the side ladder connecting plate 31 need to be fixed through the screws 32, and when disassembling, only the screws 32 need to be removed, so that the installation and disassembly are very convenient.

[0031] The platform connecting plate 11 is further hinged with a lock plate 12, the lock plate 12 is provided with a lock groove 13, the side ladder connecting plate 31 is provided with a lock cap 33 which can be clamped into the lock groove, and the lock plate 12 can form the function of a safety lock.

[0032] The two side edges of the platform 1 in the length direction are provided with at least two fixed pipes 14 which can be inserted into the lower part of the guardrail, and the side wall of the fixed pipe 14 is provided with a locking hole 15, and the lower part of the guardrail is further provided with an elastic locking rod (not shown in the figure) which cooperates with the locking hole to lock.

[0033] The platform 1 is connected with the extension ladder section 6 of the left side ladder 3 and the right side ladder 4 through a reinforcing rod 8. The reinforcing rod 8 can be provided with a connecting rod 81 on one side of the extension ladder section 6, and the reinforcing rod 8 and the connecting rod 81 are fixed through a locking screw.

Claims

1. A portable platform ladder, characterized in that... It includes a platform (1), with guardrails (2) detachably connected to both sides of the platform (1) along its length; a left ladder (3) and a right ladder (4) are detachably connected to both ends of the platform (1) along its length, and the left ladder (3) and the right ladder (4) each include a fixed ladder section (5) located at the top and detachably connected to the platform, and a telescopic ladder section (6) is connected to the lower part of the fixed ladder section (5), and a telescopic locking device is provided between the fixed ladder section (5) and the telescopic ladder section (6).

2. A portable platform ladder according to claim 1, characterized in that... The fixed ladder section (5) and the telescopic ladder section (6) are movably connected. The telescopic locking device includes fixed holes (51) on both sides of the fixed ladder section and elastic locking pins (7) that can be inserted into the fixed holes on both sides of the telescopic ladder section (6).

3. A portable platform ladder according to claim 2, characterized in that... The elastic locking pin (7) is telescopically and rotatably fixed on both sides of the telescopic ladder section (6).

4. A portable platform ladder according to claim 2, characterized in that... The fixed ladder section (5) includes two fixed ladder support legs (52) spaced a certain distance apart, and multiple fixed ladder crossbars (53) are connected between the two fixed ladder support legs (52). The telescopic ladder section (6) includes two telescopic ladder support legs (61) spaced a certain distance apart, and multiple telescopic ladder crossbars (62) are connected between the two telescopic ladder support legs (61). The two telescopic ladder support legs (61) can be movably sleeved on the two fixed ladder support legs (52). The fixed ladder crossbars (53) are hollow tubes, and two fixed ladder support legs extend from both sides of the fixed ladder crossbars (53) to form fixing holes (51). The two telescopic ladder support legs (61) are provided with telescopic foot holes (610) through which elastic locking pins (7) pass. The elastic locking pins (7) are set on both sides of one of the telescopic ladder crossbars (62).

5. A portable platform ladder according to claim 1, characterized in that... Platform (1) has platform connecting plates (11) on both sides along its length, and side ladder connecting plates (31) are provided on both sides of the upper part of the left ladder (3) and the right ladder (4). The platform connecting plates (11) and the side ladder connecting plates (31) are fixed by screws (32).

6. A portable platform ladder according to claim 5, characterized in that... A locking plate (12) is also hinged to the platform connecting plate (11). The locking plate (12) is provided with a locking groove (13), and the side ladder connecting plate (31) is provided with a locking cap (33) that can be inserted into the locking groove.

7. A portable platform ladder according to claim 1, characterized in that... The platform (1) has at least two fixing tubes (14) on both sides along its length, which can be inserted into the lower part of the guardrail. The side wall of the fixing tube (14) is provided with a locking hole (15), and the lower part of the guardrail is also provided with an elastic locking rod that cooperates with the locking hole for locking.

8. A portable platform ladder according to claim 1, characterized in that... The platform (1) is connected to the telescopic ladder sections (6) of the left ladder (3) and the right ladder (4) by reinforcing rods (8).

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