CN111779447A - A new type of ladder for aircraft - Google Patents

Abstract

The invention discloses a novel ladder for an airplane, which belongs to the technical field of military products and comprises a ladder main body, wherein two ends of one side of the ladder main body are respectively provided with a first lower vertical rod, one side of the first lower vertical rod is respectively provided with a second lower vertical rod, the top of the first lower vertical rod is respectively provided with a first upper vertical rod, and the top of the second lower vertical rod is respectively provided with a second upper vertical rod. The novel ladder for the airplane can be installed by directly butting the disks on the first cross bar, the second cross bar and the third cross bar with the cast steel heads, then extending the cast steel heads into the connecting holes, then placing the wedges at the positions of the clamping holes, only needing to downwards knock the wedges through the awl, enabling the wedges to be clamped at the gaps between the cast steel heads and the disks, and clamping the wedges, and in the process of disassembling, only needing to knock the wedges upwards from the bottom by using a hammer, enabling the wedges to be separated from the gaps between the disks and the cast steel heads, and taking out from the clamping holes, so that disassembling can be realized.

Description

A new type of ladder for aircraft

technical field

The invention relates to the technical field of military products, in particular to a novel ladder for aircraft.

Background technique

Military products, also known as "ordnance products", military industrial enterprises or other industrial enterprises produce products for the military for military purposes, such as various weapons and military equipment, etc., including military ladders, mainly used for military aircraft maintenance Auxiliary tool.

However, the existing military ladders are generally connected by integral welding, which cannot be disassembled and carried, which greatly restricts the crew's outing tasks, thereby reducing the utilization rate. Moreover, the existing military ladders have poor stability, thereby reducing the safety, which is not conducive to universal use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a new type of ladder for aircraft in order to solve the problem that the existing military ladder cannot be disassembled and carried, which greatly limits the mission of the crew.

In order to achieve the above purpose, the present invention provides the following technical solutions: a new type of ladder for aircraft, comprising a ladder main body, both ends of one side of the ladder main body are provided with first lower poles, and the first lower poles Both sides are provided with second lower poles, the tops of the first lower poles are all set with first upper poles, the tops of the second lower poles are all set with second upper poles, the The adjacent positions of the first upper pole, the first lower pole and the second upper pole and the second lower pole are evenly provided with a plurality of groups of first cross bars, wherein a group of the first upper pole, The second upper pole, the first lower pole and the second lower pole and the other group of the first upper pole, the second upper pole, the first lower pole and the second lower pole are all arranged between them There is a third cross bar, one side of the second lower vertical bar is provided with a support frame, and both ends of one side of the support frame are provided with a second cross bar, the first cross bar, two of the second cross bar. Both ends of the side and the third horizontal bar are provided with discs, and the side of the disc away from the first horizontal bar, the second horizontal bar and the third horizontal bar The first upper pole, the second upper pole and the cast steel head on one side of the support frame, the top of the disc is all provided with a wedge iron that penetrates to the bottom of the disc, and one side of the support frame is There are inclined rods, a plurality of groups of stair treads are evenly arranged on the inclined rods, and pedals are provided on the top of the first upper vertical rod.

Preferably, one side of the disk close to the first lower pole, the second lower pole, the first upper pole, the second upper pole and the side of the support frame are all provided with connections matching the cast steel head hole.

Preferably, the tops of the treads and the stair treads are provided with anti-skid holes.

Preferably, the top ends of the inclined rods are connected with the third cross rods on the top ends of the adjacent two groups of the second upper vertical rods, and the inclination angle between the inclined rods and the second cross rods is degrees.

Preferably, the top of the disc is provided with a clamping hole matching with the wedge iron.

Preferably, the first lower vertical rod, the second lower vertical rod, the first upper vertical rod, the second upper vertical rod and the support frame are all welded and connected with the cast steel head.

Preferably, the two groups of the first lower vertical rod and the second lower vertical rod are rotatably connected to the first upper vertical rod and the second upper vertical rod through a pin shaft.

Preferably, the surfaces of the first lower pole, the second lower pole, the first upper pole, the second upper pole, the support frame, the pedal and the stair tread are all coated with electrostatic spraying, and the electrostatic spraying contains terephthalic acid. Formic acid and isophthalic acid.

Preferably, universal wheels are installed on the bottoms of the first lower pole, the second lower pole and the support frame, and braking devices are arranged on the universal wheels.

Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention directly connects with the cast steel head by using the discs on the first cross bar, the second cross bar and the third cross bar, and then extends the cast steel head to the In the connection hole, and then place the wedge iron in the position of the card hole, just tap the wedge iron downward through the awl, so that the wedge iron is stuck in the gap between the cast steel head and the disc, and then clamped to achieve the A new type of ladder for aircraft is installed, and in the process of disassembly, it is only necessary to use a hammer to hit the wedge iron from the bottom to the top, so that the wedge iron is separated from the gap between the disc and the cast steel head, and is removed from the card. It can be disassembled by taking it out of the hole, so that this new type of ladder for aircraft can be directly disassembled and loaded in the storage bin in the aircraft, so as to avoid the task of the crew going out and improve the utilization rate. A triangular structure is formed between the second lower vertical pole, the second upper vertical pole and the second horizontal pole, and the stability and safety of the ladder are improved by utilizing the stability of the triangle, which is convenient for general use.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is the side view of the present invention;

Fig. 3 is the structural representation of the present invention;

Fig. 4 is the partial structure schematic diagram of the present invention;

Fig. 5 is the sectional schematic diagram of the pedal of the present invention;

Fig. 6 is the top view of the pedal of the present invention;

7 is a schematic cross-sectional view of a stair tread of the present invention;

Figure 8 is a top view of the stair tread of the present invention.

In the figure: 1. The main body of the ladder; 2. The first lower pole; 3. The first upper pole; 4. The second lower pole; 5. The second upper pole; 6. The pedal; 7. The first crossbar ; 8, disc; 9, connecting hole; 10, second cross bar; 11, cast steel head; 12, wedge iron; 13, third cross bar; 14, support frame; 15, inclined bar; 16, stair step plate; 17, anti-skid hole; 18, universal wheel.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The wedge iron, pin shaft, hammer and universal wheel mentioned in the present invention can be obtained from the market or privately ordered.

Please refer to Fig. 1-8, a new type of ladder for aircraft, including a ladder main body 1, both ends of one side of the ladder main body 1 are provided with first lower poles 2, and one side of the first lower pole 2 is provided with There is a second lower pole 4, the top of the first lower pole 2 is provided with a first upper pole 3, the top of the second lower pole 4 is provided with a second upper pole 5, and the first upper pole 3 And the adjacent positions of the first lower pole 2, the second upper pole 5 and the second lower pole 4 are evenly provided with a plurality of groups of first cross-bars 7, wherein a group of the first upper pole 3, the second The upper pole 5, the first lower pole 2 and the second lower pole 4 and the other group of the first upper pole 3, the second upper pole 5, the first lower pole 2 and the second lower pole 4 A third crossbar 13 is provided between the two, one side of the second lower vertical rod 4 is provided with a support frame 14, and both ends of one side of the support frame 14 are provided with a second crossbar 10, a first crossbar 7, and a second crossbar 10. Both sides of the second crossbar 10 and both ends of the third crossbar 13 are provided with disks 8 , and the side of the disk 8 away from the first crossbar 7 , the second crossbar 10 and the third crossbar 13 is provided with a disk 8 . The cast steel head 11 that penetrates to one side of the first lower pole 2, the second lower pole 4, the first upper pole 3, the second upper pole 5 and the support frame 14, and the top of the disc 8 is provided with a through-hole. To the wedge iron 12 at the bottom of the disc 8 , one side of the support frame 14 is provided with an oblique rod 15 , a plurality of sets of stair treads 16 are evenly arranged on the oblique rod 15 , and the top of the first upper vertical rod 3 is provided with a pedal 6 .

In this embodiment, a pin shaft is provided at the connection between the pedal 6 and the first upper vertical rod 3, so that the pedal 6 is inclined downward with the pin shaft as the base point, so that the back of the pedal 6 is connected to the first upper vertical rod. The side surfaces of the rod 3 are in contact, thereby realizing the folding of the pedal 6, and the inclined rod 15 includes an upward inclined rod and a downward inclined rod, and the upper inclined rod and the downward inclined rod are connected by a pin shaft, so that the inclined rod 15 is connected by a pin shaft After being rotated and folded as the base point, the length of the folded diagonal rod is half of the original diagonal rod length, so that the folded volume of this new type of ladder for aircraft becomes smaller, so it is easy to carry and can be placed in the designated aircraft compartment. , so that this new type of ladder for aircraft has strong softness.

Please refer to Figures 1, 2, 3, 4, 6 and 8. One side of the disc 8 is close to the first lower pole 2, the second lower pole 4, the first upper pole 3, the second upper pole 5 and One side of the support frame 14 is provided with connecting holes 9 matching with the cast steel head 11 , and the tops of the pedals 6 and the stair treads 16 are provided with anti-skid holes 17 .

This new type of ladder used for aircraft is connected with the disc 8 through the provided cast steel head 11, so as to achieve the effect of positioning. Assembly (only butt, not fixed), thus reducing the difficulty of work to a certain extent, and then increasing the friction force on the surface of the pedal 6 and the stair tread 16 through the anti-skid holes 17, so that the soles of the staff are connected with the pedals 6 and 16. The friction between the stair treads 16 is greater, thereby improving stability.

Please refer to FIGS. 1 , 2 , 3 and 4 emphatically. The top end of the inclined bar 15 is connected to the third cross bar 13 at the top of the adjacent side of the two sets of second upper vertical bars 5 , and the inclined bar 15 is connected to the second cross bar 10 . The inclination angle between them is 60 degrees, and the top of the disc 8 is provided with a clamping hole that matches the wedge iron 12 .

This new type of ladder for aircraft is used to fix the two groups of first upper poles 3 , second upper poles 5 , first lower poles 2 and second lower poles 4 through a third cross bar 13 provided , so as to improve the stability, and by inclining the diagonal bar 15 and the second cross bar 10, a triangular structure is formed between the diagonal bar 15, the second horizontal bar 10 and the second lower vertical bar 4. The stability of the ladder is improved, and the wedge iron 12 can be easily inserted through the provided clamping holes.

Please refer to FIGS. 1, 2, 3 and 4. The first lower pole 2, the second lower pole 4, the first upper pole 3, the second upper pole 5 and the support frame 14 are all connected to the cast steel head 11 by welding , the two groups of the first lower vertical rod 2 and the second lower vertical rod 4 are connected with the first upper vertical rod 3 and the second upper vertical rod 5 through the pin shaft.

The new type of ladder used for aircraft is more convenient to fix the disc 8 through the provided cast steel head 11, so as to play a preliminary role in the installation of the first crossbar 7, the second crossbar 10 and the third crossbar 13 The effect of positioning (docking first, then fixing) reduces the difficulty of work to a certain extent and improves the efficiency of work.

Please refer to FIG. 1 , the surfaces of the first lower pole 2 , the second lower pole 4 , the first upper pole 3 , the second upper pole 5 , the support frame 14 , the pedal 6 and the stair tread 16 are all coated with electrostatic spraying , and the electrostatic spraying contains terephthalic acid and isophthalic acid, the bottom of the first lower pole 2, the second lower pole 4 and the support frame 14 are all installed with universal wheels 18, and the universal wheels 18 are all provided with There are brakes.

This new type of ladder for aircraft is applied by electrostatic spraying on the surface of the ladder. The powder used in electrostatic spraying is solid, which is recycled while spraying. The recovered powder can be reused, and uses phthalic acid and isophthalic acid materials. The coating, after high temperature baking and leveling curing above 200℃, forms a solid coating with a thickness of about 60 microns. Paint, the effect of isolating oxygen is also stronger than traditional technology, so its corrosion resistance is also stronger than paint, thereby improving the corrosion resistance of this new type of ladder for aircraft, and improving the service life. This new type of ladder for airplanes is moved, thereby increasing utilization.

Working principle: When in use, rotate the two sets of first upper poles 3 based on the pin shaft to make the first upper pole 3 and the first lower pole 2 horizontal and vertical, and then place the third cross bar 13 on the two sides. Between the first upper vertical rod 3 and the two first lower vertical rods 2, and make the disc 8 on the third horizontal rod 13 butt with the opposite cast steel head 11, so that the cast steel head 11 extends to the connecting hole 9, and then extend the thinner end of the wedge iron 12 from top to bottom into the clamping hole set on the disc 8, and then knock the wedge iron 12 downward through the awl, so that the wedge iron 12 passes over the cast steel head 11. The clamping hole extends to the bottom of the disc 8, so that the two sets of the first upper vertical rod 3 and the first lower vertical rod 2 are fixedly connected, and then the second upper vertical rod 5 and the second lower vertical rod are also rotated based on the pin shaft. rod 4, and in the same way, the two groups of corresponding second upper rods and the second lower rods 4 are fixedly connected through the third cross rod 13, and then the installed first upper rod 3, the second The lower pole 2 is fixedly connected to the second upper pole 5 and the second lower pole 4 through the first cross bar 7, and at the same time, the base point is the pin at the connection position of the pedal 6 and the first upper pole 3. Rotate the pedal 6 to make the pedal 6 rotate to the side of the second upper vertical rod 5, and be fixedly connected with the cast steel head 11 on the second upper vertical rod 5, and the connection method is the same as that of the two adjacent first upper vertical rods. The connection method between the rods 3 is the same, and the installation can be realized only by hitting the wedge iron 12 with an awl, and then the support frame 14 is installed on the left side of the second lower vertical rod 4, and is fixed by the second horizontal rod 10, Therefore, the installation of this kind of ladder is more labor-saving, and can be completed only by the cooperation of two staff members, thereby reducing labor costs to a certain extent.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (9)

1. A new ladder for aircraft, comprising a ladder body (1), characterized in that: both ends of one side of the ladder main body (1) are provided with first lower vertical rods (2), one side of each first lower vertical rod (2) is provided with a second lower vertical rod (4), the top of each first lower vertical rod (2) is provided with a first upper vertical rod (3), the top of each second lower vertical rod (4) is provided with a second upper vertical rod (5), the adjacent positions of the first upper vertical rod (3), the first lower vertical rods (2), the second upper vertical rods (5) and the second lower vertical rods (4) are uniformly provided with a plurality of groups of first cross rods (7), wherein a third cross rod (13) is arranged between one group of first upper vertical rods (3), the second upper vertical rods (5), the first lower vertical rods (2) and the second lower vertical rods (4) and another group of the first upper vertical rods (3), the second upper vertical rods (5), the first lower vertical rods (2) and the second lower vertical rods (4), one side of the second lower vertical rod (4) is provided with a support frame (14), two ends of one side of the support frame (14) are provided with second cross rods (10), the two sides of the first cross rods (7), the two sides of the second cross rods (10) and two ends of the third cross rods (13) are provided with discs (8), one side of each disc (8) far away from the first cross rods (7), the second cross rods (10) and the third cross rods (13) is provided with a cast steel head (11) penetrating through the first lower vertical rod (2), the first upper vertical rod (3) of the second lower vertical rod (4), the second upper vertical rod (5) and one side of the support frame (14), the top of each disc (8) is provided with a wedge (12) penetrating through the bottom of the disc (8), one side of the support frame (14) is provided with an inclined rod (15), and a plurality of stair tread plates (16) are uniformly arranged on the inclined rod (15), the top of the first upper upright rod (3) is provided with a pedal (6).

2. A novel ladder for an aircraft as defined in claim 1, wherein: one side of the disc (8) is close to the first lower vertical rod (2), the second lower vertical rod (4), the first upper vertical rod (3), the second upper vertical rod (5) and one side of the support frame (14) are provided with connecting holes (9) matched with the cast steel heads (11).

3. A novel ladder for an aircraft as defined in claim 1, wherein: the tops of the pedals (6) and the stair tread (16) are provided with anti-skid holes (17).

4. A novel ladder for an aircraft as defined in claim 1, wherein: the top of down tube (15) is connected with two sets of third horizontal pole (13) on pole (5) adjacent side top on the second, and the inclination between down tube (15) and second horizontal pole (10) is 60 degrees.

5. A novel ladder for an aircraft as defined in claim 1, wherein: the top of the disc (8) is provided with a clamping hole matched with the wedge (12).

6. A novel ladder for an aircraft as defined in claim 1, wherein: the first lower vertical rod (2), the second lower vertical rod (4), the first upper vertical rod (3), the second upper vertical rod (5) and the support frame (14) are all connected with the cast steel head (11) in a welding mode.

7. A novel ladder for an aircraft as defined in claim 1, wherein: two sets of first lower pole setting (2), second lower pole setting (4) are all connected with first pole setting (3) and second upper pole setting (5) are rotated through the round pin axle.

8. A novel ladder for an aircraft as defined in claim 1, wherein: the surfaces of the first lower vertical rod (2), the second lower vertical rod (4), the first upper vertical rod (3), the second upper vertical rod (5), the support frame (14), the pedal (6) and the stair tread plate (16) are all coated with electrostatic spraying, and the electrostatic spraying comprises terephthalic acid and isophthalic acid.

9. A novel ladder for an aircraft as defined in claim 1, wherein: the bottom of the first lower vertical rod (2), the bottom of the second lower vertical rod (4) and the bottom of the support frame (14) are all provided with universal wheels (18), and the universal wheels (18) are all provided with braking devices.

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