CN110155269A - Marine step ladder - Google Patents

Abstract

The invention discloses a movable ladder for a ship: it comprises upright rods on both sides and a pedal arranged between the two upright rods; The clamp body is provided with a jaw, and a clamping bolt is arranged in the jaw, and the angle of the jaw is adjustable. The ladder of the present invention is provided with a fixing clip on the upper end of the vertical rod, which is used for fixing to the deck, ship's side or other positions, which improves the stability and reliability of the marine ladder; the clamping bolt makes the installation and disassembly of the fixing clip convenient and convenient. Operation; and the clamping mouth is an adjustable structure, when the angle of the pole changes, it can also be clamped and fixed very well, with strong adaptability and versatility.

Description

Marine step ladder

technical field

The invention relates to the technical field of ships, in particular to a movable ladder for ships.

Background technique

Small and medium-sized ships, such as yachts, will have some spare ladders as a walkway connecting the dock and the side, or as a passage between different decks in an emergency. This kind of ladder is mostly a temporary device, and there is no fixed device between the wharf, the ship's side, and the deck. It is easy to shake when the wind and waves are large, with poor stability and potential safety hazards. In addition, ladders are generally of fixed length and cannot be adjusted when the height difference changes, so the use is limited and the versatility is poor.

Contents of the invention

In order to improve the safety and versatility of the marine ladder, the invention provides a marine movable ladder.

The technical scheme that the present invention adopts is as follows:

A kind of movable ladder for a ship, comprising uprights on both sides and a pedal arranged between the two uprights, the upper end of the uprights is provided with a fixing clip, the fixing clip includes a clip body, and the clip body is provided with A clamping mouth, a clamping bolt is arranged in the clamping mouth, and the angle of the clamping mouth is adjustable.

The beneficial effects of the present invention are: the ladder of the present invention is provided with a fixing clip at the upper end of the vertical rod, which is used for fixing with the deck, ship's side or other positions, which improves the stability and reliability of the marine ladder; the clamping bolt makes the fixing clip It is easy to install and disassemble, and easy to operate; while the clamping mouth is an adjustable structure, when the angle of the pole changes, it can also be clamped and fixed very well, with strong adaptability and versatility.

Preferably: the clip body is hinged on the upper end of the upright rod, and the rotation axis of the clip body is parallel to the pedal.

Preferably: the lower end of the pole is hinged with a base.

Preferably: the base includes a seat body, the bottom of the seat body is provided with a dovetail groove, and an anti-skid pad is fixed in the dovetail groove.

Preferably: the pedal is a three-plane curved plate structure, including a vertical plate, a transition plate and an inclined plate connected in sequence, the vertical plate is perpendicular to the vertical bar, and the transition plate and the vertical bar are at 60° ° angle, the inclined plate and the vertical rod form an angle of 30 °.

Preferably: the vertical rod is a double rod structure, one of which is fixed to the end of the vertical plate, and the other is fixed to the end of the inclined plate.

Preferably: the clip body is provided with two oppositely facing clip openings.

Preferably: the upper surfaces of the vertical boards, the transition boards and the inclined boards are provided with anti-slip strips extending along the length direction of the pedals.

Preferably: the edge and center of the lower surface of the vertical board, the transition board and the inclined board are provided with reinforcing ribs extending along the length direction of the pedal, and the vertical board, the transition board, the inclined board, the anti-skid strip and the reinforcing rib are integrated The structural aluminum alloy profile is bent.

Preferably: both ends of the pedal are fixed with edge strips.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of the present invention at a large inclination angle (75-90°).

Fig. 2 is a schematic diagram of an embodiment of the present invention at a middle inclination angle (45-75°).

Fig. 3 is a schematic diagram of an embodiment of the present invention at a small inclination angle (0-45°).

Fig. 4 is a schematic diagram of the pedal in the embodiment of the present invention.

Fig. 5 is a schematic diagram of the cross section of the pedal in the embodiment of the present invention.

Fig. 6 is a schematic diagram of the fixing clip in the embodiment of the present invention.

Fig. 7 is a schematic diagram of the base in the embodiment of the present invention.

Fig. 8 is an exploded schematic view of the base in the embodiment of the present invention.

Upright pole 1, pedal 2, fixing clip 3, base 4, vertical plate 201, transition plate 202, inclined plate 203, anti-slip strip 204, reinforcing rib 205, edge strip 206, clamp body 301, clamp mouth 302, clamping bolt 303 , seat body 401, dovetail groove 402, anti-skid pad 403.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

In the embodiment, as shown in Figures 1 to 8: a marine movable ladder, comprising uprights 1 on both sides and a pedal 2 arranged between the two uprights 1, the upper end of the uprights 1 is provided with The fixing clip 3, the fixing clip 3 includes a clip body 301, the clip body 301 is provided with a clamping opening 302, and a clamping bolt 303 is arranged in the clamping opening 301, and the angle of the clamping opening 302 is adjustable. The ladder of this embodiment is provided with a fixing clip 3 on the upper end of the vertical rod 1, which is used to fix the deck, ship's side or other positions, which improves the stability and reliability of the marine ladder; the clamping bolt 303 makes the installation of the fixing clip 3 1. It is easy to disassemble and easy to operate; while the clamping mouth 302 is an angle-adjustable structure, when the angle of the pole 1 changes, it can also be clamped and fixed very well, with strong adaptability and versatility.

In the embodiment, as shown in FIGS. 1 to 3 and 6 , the clip body 301 is hinged on the upper end of the upright 1 , and the rotation axis of the clip body 301 is parallel to the pedal 2 . In the structure of this embodiment, the fixing clip 3 rotates with a single degree of freedom, and after being locked with the deck or the side of the ship, better stability can be ensured, and the ladder will not shake from side to side, so the safety is good.

In the embodiment, as shown in Figures 1 to 3, 7 and 8: the lower end of the pole 1 is hinged with a base 4 . The structural base 4 of this embodiment can ensure good contact between the pole 1 and the ground or deck, thereby improving the stability of the ladder.

In the embodiment, as shown in Figures 1-3, 7 and 8: the base 4 includes a seat body 401, a dovetail groove 402 is provided at the bottom of the seat body 401, and an anti-skid pad 403 is fixed in the dovetail groove 402. The anti-slip mat 403 of this embodiment can prevent relative slippage between the pole 1 and the ground or deck. The dovetail groove 402 has two advantages, one is to avoid the anti-skid pad 403 from falling off, and the other is to replace the anti-skid pad 403 after wear and tear. The anti-skid pad 403 is made of rubber or wood.

In the embodiment, as shown in Figures 1 to 5: the pedal 2 is a three-plane curved plate structure, including a vertical plate 201, a transition plate 202, and an inclined plate 203 connected in sequence, and the vertical plate 201 is connected to the vertical plate 201. The rod 1 is vertical, the transition plate 202 forms an included angle of 60° with the vertical rod 1 , and the inclined plate 203 forms an included angle of 30° with the vertical rod 1 . The pedal 2 of this embodiment has three positions with different angles. When the pole 1 is at different angles, you can choose a part closer to the horizontal direction to step on, so as to make climbing easier. Specifically: when the vertical pole 1 is 75-90° to the horizontal plane, the vertical plate 201 is selected; when the vertical pole 1 is 45-75° to the horizontal plane, the transition plate 202 is selected; when the vertical pole 1 is 0-45° to the horizontal plane , select the inclined plate 203 for use. It should be noted that the various angles or angle ranges here are approximate values, not strict numerical values and ranges.

In the embodiment, as shown in Figures 1 to 3: the vertical rod 1 is a double rod structure, one of which is fixed to the end of the vertical plate 201, and the other is fixed to the end of the inclined plate 203 . The double-rod structure of this embodiment has three functions: one is to improve the overall rigidity of the ladder, the other is to ensure the connection strength and stability of the pedal 2, and the third is to provide a handrail position to improve the safety of climbing.

In the embodiment, as shown in FIGS. 1 to 3 and 6 , the clip body 301 is provided with two oppositely facing clip openings 302 . In this embodiment, the jaw 302 is arranged on the same side of the hinge point of the clamp body 301, and the center lines are collinear. The appropriate jaw 302 can be selected according to the three different use positions of the pedal 2 and the installation position of the fixing clip 3 to ensure that the ladder I can use it smoothly. Specifically, what Fig. 1 uses is a jaw, what Fig. 2, 3 uses is another jaw.

In the embodiment, as shown in FIGS. 4 and 5 , the upper surfaces of the vertical board 201 , the transition board 202 and the inclined board 203 are provided with anti-slip strips 204 extending along the length direction of the pedal 2 . The anti-slip strip 204 in this embodiment is used to ensure the stability of the foot surface when stepping on it, and avoid sliding and falling.

In the embodiment, as shown in Figures 4 and 5: the edges and central positions of the lower surfaces of the vertical board 201, the transition board 202 and the inclined board 203 are provided with reinforcing ribs 205 extending along the length direction of the pedal 2, and the vertical board 201 , the transition plate 202 , the inclined plate 203 , the anti-slip strip 204 and the reinforcing edge 205 are formed by bending an aluminum alloy profile with an integral structure. The pedal 2 of this embodiment is made of aluminum alloy, and other parts can also be made of aluminum alloy, which not only has guaranteed strength, but also is light and corrosion-resistant, suitable for handling, and also suitable for marine environments.

In the embodiment, as shown in FIGS. 4 and 5 , edge strips 206 are fixed at both ends of the pedal 2 . The edge bar 206 of this embodiment has two functions, one is to improve the overall rigidity of the pedal 2, and the other is to facilitate the connection between the pedal 2 and the upright rod 1, providing a connection part for welding, bolt connection, riveting and the like.

Apparently, the above-mentioned embodiments of the present invention are only examples for illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to give exhaustive examples for all the implementation manners here. However, the obvious changes or changes derived from the essence and spirit of the present invention still fall within the protection scope of the present invention.

Claims (10)

1. A marine movable ladder, comprising uprights (1) on both sides and pedals (2) arranged between the two uprights (1), characterized in that: the upper end of the uprights (1) A fixed clip (3) is provided, the fixed clip (3) includes a clip body (301), the clip body (301) is provided with a clamping mouth (302), and a clamping bolt (303) is arranged in the clamping mouth (301) ), the angle of the jaw (302) is adjustable. 2. The marine stepladder according to claim 1, characterized in that: the clip body (301) is hinged on the upper end of the pole (1), and the rotation axis of the clip body (301) is in line with the said pedal (2) parallel. 3. The marine stepladder according to claim 1, characterized in that: a base (4) is hinged to the lower end of the pole (1). 4. The marine activity ladder according to claim 3, characterized in that: the base (4) includes a seat body (401), the bottom of the seat body (401) is provided with a dovetail groove (402), and the dovetail groove (402) is fixed with antiskid pad (403). 5. The marine movable ladder according to claim 1, characterized in that: the pedal (2) is a three-plane curved plate structure, including a vertical plate (201), a transition plate (202) and an inclined plate connected in sequence (203), the vertical plate (201) is perpendicular to the pole (1), the transition plate (202) forms an angle of 60° with the pole (1), and the inclined plate (203) and The pole (1) is at an included angle of 30°. 6. The marine movable ladder according to claim 5, characterized in that: the vertical rod (1) is a double rod structure, one of which is fixed to the end of the vertical plate (201), and the other is fixed to the end of the vertical plate (201). The end of the inclined plate (203) is fixed. 7. The marine movable ladder according to claim 5, characterized in that: the clip body (301) is provided with two clip openings (302) facing oppositely. 8. The marine movable ladder according to claim 5, characterized in that: the upper surfaces of the vertical plate (201), the transition plate (202) and the inclined plate (203) are arranged along the length direction of the pedal (2). Extended skid strip (204). 9. The marine movable ladder according to claim 8, characterized in that: the edge and center of the lower surface of the vertical plate (201), the transition plate (202) and the inclined plate (203) are provided along the pedal ( 2) The reinforcing rib (205) is extended in the length direction, and the vertical plate (201), the transition plate (202), the inclined plate (203), the anti-slip strip (204) and the reinforcing rib (205) are folded by an aluminum alloy profile with an integral structure bent. 10. The marine movable ladder according to claim 9, characterized in that: side strips (206) are fixed at both ends of the pedal (2).