Assembled aluminum alloy square tube ladder

Abstract

The utility model provides an assembly type aluminum alloy square tube ladder, which belongs to the technical field of ladders and comprises an assembly square tube ladder, an upper support component and a lower anti-skid component, the assembly square tube ladder comprises a second square tube ladder, and the second square tube ladder comprises a first square tube ladder and a third square tube ladder which are detachably arranged at the top end and the bottom end of the second square tube ladder. The upper supporting assembly comprises an upper assembling frame, an upper connecting arm is arranged on one side of the upper assembling frame in the width direction, an anti-skid supporting rod is arranged at the other end of the upper connecting arm, the upper assembling frame is detachably arranged at the top end of the first square tube ladder, the lower anti-skid assembly comprises a lower assembling frame, and side connecting arms are arranged on one side of the left side and the right side of the lower assembling frame. The bottom of each side connecting arm is provided with a butt joint part, the bottom end of each butt joint part is provided with an anti-skid foot support, and the lower assembly frame is detachably arranged at the bottom of the third square tube ladder, so that the problems that after an existing ladder is wrapped with a rubber sleeve, provided external friction force is relatively limited, and the anti-skid effect is not enough when the ladder is used on the wet and slippery or uneven ground are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to an assembled aluminum alloy square tube ladder. Background Art

[0002] In construction projects, ladders, as an important tool, play an important role in climbing or crossing obstacles. They are usually supported by two long poles with several rungs or steps running across the middle to form a structure for people to climb. This design makes the ladder both stable and easy to operate, which can help workers safely reach high places or cross difficult obstacles. It is an indispensable tool for aerial work.

[0003] As experience with ladders increases, in order to enhance their anti-slip reinforcement, anti-slip rubber sleeves are usually wrapped around both ends of the ladder to increase friction with the ground and wall. However, this design has obvious limitations. Since the force-bearing area at both ends of the ladder is not significantly increased after being wrapped with the rubber sleeves, the additional friction provided by the rubber sleeves is relatively limited. When used on wet or uneven surfaces, this anti-slip effect often fails to achieve the expected effect, increasing the risk of the ladder tipping over or sliding. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an assembled aluminum alloy square tube ladder to solve the above problems.

[0005] The utility model is achieved in this way:

[0006] An assembled aluminum alloy square tube ladder comprises: an assembled square tube ladder, an upper support assembly and a lower anti-skid assembly, the assembled square tube ladder comprises a second square tube ladder, the second square tube ladder comprises a first square tube ladder and a third square tube ladder detachably arranged at the top and bottom ends of the second square tube ladder, the first square tube ladder and the third square tube ladder have the same structure, the upper support assembly comprises an upper assembly frame, an upper connecting arm is provided on one side in the width direction of the upper assembly frame, and an anti-skid support rod is provided at the other end of the upper connecting arm, the upper assembly frame is detachably arranged at the top end of the first square tube ladder, the lower anti-skid assembly comprises a lower assembly frame, side connecting arms are provided on one side of the left and right sides of the lower assembly frame, a docking portion is provided at the bottom of the side connecting arm, and an anti-skid foot support is provided at the bottom end of the docking portion, and the lower assembly frame is detachably arranged at the bottom of the third square tube ladder.

[0007] In an embodiment of the present invention, a plurality of first mounting holes are provided on the front side of the first square tube ladder near both ends, and a plurality of first mounting holes of the same size are provided on the front side of the second square tube ladder near both ends. After the first square tube ladder and the third square tube ladder are respectively inserted into the two ends of the second square tube ladder, first anchor nails are inserted into the square tubes sleeved together, and a connecting plate is provided at the connection between the first square tube ladder and the second square tube ladder.

[0008] In an embodiment of the present utility model, a plurality of second mounting holes are provided on the left and right sides of the first square tube ladder close to the second square tube ladder, a plurality of second mounting holes of the same size are provided on both sides of the second square tube ladder close to the top, a third mounting hole and a slotted hole are provided on the connecting plate respectively, the third mounting hole on the connecting plate and the second mounting hole on the first square tube ladder are fixed by a second anchor nail, the slotted hole on the connecting plate and the second mounting hole on the second square tube are fixed by another second anchor nail, and an identical connecting plate is provided between the third tube ladder and the second square tube ladder.

[0009] In an embodiment of the present invention, a first mounting hole identical to that of the first square tube ladder is opened on the front side of the upper assembly frame. After the upper assembly frame is inserted into the first square tube ladder, the first anchor is inserted therein for fixation.

[0010] In an embodiment of the present invention, the anti-slip support rod is a straight square tube with rounded corners on its edges, and an anti-slip layer is provided on the rear side of the anti-slip support rod.

[0011] In an embodiment of the present invention, the anti-slip support rod is an arc-shaped square tube concave inwardly toward the lower assembly frame, with rounded corners on its edges, and an anti-slip layer is provided on the rear side of the anti-slip support rod.

[0012] In an embodiment of the present invention, a first mounting hole identical to the first square tube ladder is opened on the front side of the lower assembly frame. After the upper assembly frame is inserted into the third square tube ladder, the first anchor is inserted therein for fixation.

[0013] In an embodiment of the present invention, the anti-slip foot support includes a screw, a limiting nut and an anti-slip plate. The screw is threadedly connected to the bottom of the docking part. A ball head is provided at the other end of the screw. The ball head is movably provided on the top of the anti-slip plate, and the limiting nut is movably provided on the screw.

[0014] In an embodiment of the present invention, a groove is provided at the bottom of the anti-slip plate, a rubber layer is provided in the groove, and a plurality of protrusions are provided at the bottom of the rubber layer.

[0015] In an embodiment of the present invention, a groove is provided at the bottom of the anti-slip plate, an anchor plate is provided in the groove, the anchor plate includes a fixing plate, a plurality of downwardly extending anchors are provided at the bottom of the fixing plate, and the fixing plate is fixed in the groove by screws.

[0016] The beneficial effects of the present invention are as follows: the assembled aluminum alloy square tube ladder of the present invention adopts a modular design, including an assembled square tube ladder, an upper support assembly and a lower anti-skid assembly. This design allows the ladder to be flexibly assembled according to the actual required height, avoiding the shortcomings of traditional ladders that are fixed in height and inconvenient to carry; the anti-skid support rods of the upper support assembly and the anti-skid foot supports of the lower anti-skid assembly both adopt an anti-skid design, which increases the contact area with the wall and the ground, improves the friction, and effectively prevents the ladder from sliding, so that the ladder can remain stable on wet, smooth or uneven ground, avoiding accidents caused by sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of an assembled aluminum alloy square tube ladder provided in an embodiment of the present utility model;

[0019] Figure 2 This is an enlarged view of point A in the figure;

[0020] Figure 3 A schematic structural diagram of a first square tube ladder provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic structural diagram of a second square tube ladder provided in an embodiment of the present utility model;

[0022] Figure 5 Schematic diagram of the structure of the lower anti-slip assembly provided by the embodiment of the utility model

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle

[0024] Figure 7 for Figure 5 Another perspective structural diagram of point A in the middle

[0025] Figure 8 This is a schematic structural diagram of the upper support assembly provided in an embodiment of the present utility model.

[0026] In the figure: 10, assembled square tube ladder; 11, first square tube ladder; 1101, first mounting hole; 1102, second mounting hole; 12, second square tube ladder; 13, third tube ladder; 14, first anchor nail; 15, second anchor nail; 16, connecting plate; 1601, third mounting hole; 1602, slotted hole; 20, upper support assembly; 21, upper assembly frame; 22, upper connecting arm; 23, anti-slip support rod; 30, lower anti-slip assembly; 31, lower assembly frame; 32, side connecting arm; 33, docking part; 34, anti-slip foot support; 3401, screw; 3402, limit nut; 3403, ball head; 3404, anti-slip plate; 3405, groove. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1As shown, the utility model provides an assembled aluminum alloy square tube ladder, which comprises an assembled square tube ladder 10, an upper support assembly 20 and a lower anti-slip assembly 30. The assembled square tube ladder 10 comprises a second square tube ladder 12, and the second square tube ladder 12 comprises a first square tube ladder 11 and a third tube ladder 13 detachably arranged at the top and bottom ends of the second square tube ladder 12. The first square tube ladder 11 and the third tube ladder 13 have the same structure. The upper support assembly 20 comprises an upper assembly frame 21, and an upper connecting arm 22 is provided on one side of the upper assembly frame 21 in the width direction. The other end of the upper connecting arm 22 is provided with an anti-slip support rod 23. The upper assembly frame 21 It is detachably arranged at the top end of the first square tube ladder 11, and the lower anti-slip component 30 includes a lower assembly frame 31. Side connecting arms 32 are provided on one side of the left and right sides of the lower assembly frame 31, and a docking portion 33 is provided at the bottom of the side connecting arm 32. The bottom end of the docking portion 33 is provided with an anti-slip foot support 34. The lower assembly frame 31 is detachably arranged at the bottom of the third tube ladder 13. The assembled square tube ladder 10 can be assembled according to the actual required height. At the same time, the upper support component 20 and the lower anti-slip component 30 can increase the contact area of ​​the square tube ladder with the wall and the ground, increase friction, and enhance the anti-slip reinforcement effect of the square tube ladder.

[0030] like Figure 2-4 As shown, a plurality of first mounting holes 1101 are opened on the front side of the first square tube ladder 11 near both ends, and a plurality of first mounting holes 1101 of the same size are opened on the front side of the second square tube ladder 12 near both ends. After the first square tube ladder 11 and the third square tube ladder 13 are respectively inserted into the two ends of the second square tube ladder 12, first anchor nails 14 are inserted into the square tubes that are sleeved together, and a connecting plate 16 is provided at the connection between the first square tube ladder 11 and the second square tube ladder 12.

[0031] In this embodiment, a plurality of second mounting holes 1102 are provided on the left and right sides of the first square tube ladder 11 near the second square tube ladder 12, and a plurality of second mounting holes 1102 of the same size are provided on both sides of the second square tube ladder 12 near the top. A third mounting hole 1601 and a slotted hole 1602 are respectively provided on the connecting plate 16. The third mounting holes 1601 on the connecting plate 16 and the second mounting holes 1102 on the first square tube ladder 11 are fixed by second anchor nails 15, and the slotted holes 1602 on the connecting plate 16 and the second mounting holes 1102 on the second square tube are fixed by another second anchor nail 15. An identical connecting plate 16 is provided between the third tube ladder 13 and the second square tube ladder 12. The connecting plate 16 can further increase the stability of the connection between the first square tube ladder 11, the third tube ladder 13 and the second square tube ladder 12.

[0032] like Figure 8 As shown, the front side of the upper assembly frame 21 is provided with a first mounting hole 1101 which is the same as the first square tube ladder 11 . After the upper assembly frame 21 is inserted into the first square tube ladder 11 , the first anchor nail 14 is inserted to fix it.

[0033] In Example 1, the anti-slip support rod 23 is a straight square tube with rounded corners on its edges. An anti-slip layer is provided on the rear side of the anti-slip support rod 23. The anti-slip layer can be specifically wrapped on the anti-slip support rod 23 with rubber. The length of the anti-slip support rod 23 is greater than the width of the first square tube ladder 11. Since the overall length of the assembled square tube ladder 10 is too long, the contact area with the wall is increased by increasing the length of the anti-slip support rod 23, thereby increasing stability.

[0034] In Example 2, the anti-slip support rod 23 is an arc-shaped square tube concave inward toward the downward assembly frame 31, with rounded corners on its edges. An anti-slip layer is provided on the rear side of the anti-slip support rod 23. The anti-slip support rod 23 with an arc-shaped square tube structure is mainly used to deal with cylindrical buildings, such as telephone poles and piers. The arc-shaped surface can better fit such cylindrical buildings to ensure stability.

[0035] like Figure 5-7 As shown, the front side of the lower assembly frame 31 is provided with a first mounting hole 1101 which is the same as the first square pipe ladder 11 . After the upper assembly frame 21 is inserted into the third square pipe ladder 13 , the first anchor 14 is inserted to fix it.

[0036] In this embodiment, the anti-slip foot support 34 includes a screw 3401, a limiting nut 3402 and an anti-slip plate 3404. The screw 3401 is threadedly connected to the bottom of the docking part 33. The other end of the screw 3401 is provided with a ball head 3403. The ball head 3403 is movably set on the top of the anti-slip plate 3404. The limiting nut 3402 is movably set on the screw 3401. Due to the unevenness of the ground, the height of the anti-slip foot support 34 is controlled by adjusting the depth of the screw 3401 at the bottom of the docking part 33. At the same time, the limiting nut 3402 limits the adjusted screw 3401 to prevent it from loosening due to external force during use.

[0037] In Example 3, a groove 3405 is provided at the bottom of the anti-slip plate 3404, and a rubber layer is provided in the groove 3405. A plurality of protrusions are provided at the bottom of the rubber layer. The design of the rubber layer is mainly used in usage scenarios such as cement hard ground. This kind of ground is relatively flat, and the rubber layer can fully contact it to increase friction.

[0038] In embodiment 4, a groove 3405 is provided at the bottom of the anti-slip plate 3404, and an anchor plate is provided in the groove 3405. The anchor plate includes a fixing plate, and a plurality of downwardly extending anchors are provided at the bottom of the fixing plate. The fixing plate is fixed in the groove 3405 by screws. The design of the anchor plate is mainly used in muddy ground in the wild. Such ground is uneven and the rubber layer cannot provide a good grip effect. The anchors at the bottom of the anchor plate can be inserted into the ground to ensure the stability of the bottom support of the assembled square tube ladder 10.

[0039] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An assembled aluminum alloy square tube ladder, characterized in that: include: An assembly square tube ladder (10), an upper support assembly (20) and a lower anti-skid assembly (30), wherein the assembly square tube ladder (10) includes a second square tube ladder (12), the second square tube ladder (12) includes a first square tube ladder (11) and a third square tube ladder (13) detachably arranged at the top and bottom ends of the second square tube ladder (12), the first square tube ladder (11) and the third square tube ladder (13) having the same structure, the upper support assembly (20) including an upper assembly frame (21), and an upper connecting arm (22) provided on one side of the width direction of the upper assembly frame (21). ), the other end of the upper connecting arm (22) is provided with an anti-slip support rod (23), the upper assembly frame (21) is detachably provided at the top end of the first square tube ladder (11), the lower anti-slip component (30) includes a lower assembly frame (31), one side of the left and right sides of the lower assembly frame (31) is provided with a side connecting arm (32), the bottom of the side connecting arm (32) is provided with a docking portion (33), the bottom end of the docking portion (33) is provided with an anti-slip foot support (34), and the lower assembly frame (31) is detachably provided at the bottom of the third tube ladder (13).

2. The assembled aluminum alloy square tube ladder according to claim 1, characterized in that: The front side of the first square tube ladder (11) is provided with a plurality of first mounting holes (1101) near both ends, and the front side of the second square tube ladder (12) is provided with a plurality of first mounting holes (1101) of the same size near both ends. After the first square tube ladder (11) and the third square tube ladder (13) are respectively inserted into the two ends of the second square tube ladder (12), first anchor nails (14) are inserted into the square tubes sleeved together, and a connecting plate (16) is provided at the connection between the first square tube ladder (11) and the second square tube ladder (12).

3. The assembled aluminum alloy square tube ladder according to claim 2, characterized in that: A plurality of second mounting holes (1102) are provided on the left and right sides of the first square tube ladder (11) near the second square tube ladder (12), and a plurality of second mounting holes (1102) of the same size are provided on the two sides of the second square tube ladder (12) near the top. A third mounting hole (1601) and a slotted hole (1602) are respectively provided on the connecting plate (16). The third mounting hole (1601) on the connecting plate (16) and the second mounting hole (1102) on the first square tube ladder (11) are fixed by a second anchor nail (15). The slotted hole (1602) on the connecting plate (16) and the second mounting hole (1102) on the second square tube are fixed by another second anchor nail (15). The same connecting plate (16) is provided between the third tube ladder (13) and the second square tube ladder (12).

4. The assembled aluminum alloy square tube ladder according to claim 2, characterized in that: The front side of the upper assembly frame (21) is provided with a first mounting hole (1101) identical to the first square tube ladder (11); after the upper assembly frame (21) is inserted into the first square tube ladder (11), the first anchor nail (14) is inserted for fixing.

5. The assembled aluminum alloy square tube ladder according to claim 4, characterized in that: The anti-slip support rod (23) is a straight square tube with rounded corners at its edges, and an anti-slip layer is provided on the rear side of the anti-slip support rod (23).

6. The assembled aluminum alloy square tube ladder according to claim 4, characterized in that: The anti-slip support rod (23) is an arc-shaped square tube concave in the direction of the lower assembly frame (31), and a rounded corner is provided at the edge thereof. The rear side of the anti-slip support rod (23) is provided with an anti-slip layer.

7. The assembled aluminum alloy square tube ladder according to claim 2, characterized in that: The front side of the lower assembly frame (31) is provided with a first mounting hole (1101) identical to the first square tube ladder (11); after the upper assembly frame (21) is inserted into the third tube ladder (13), the first anchor nail (14) is inserted for fixing.

8. The assembled aluminum alloy square tube ladder according to claim 7, characterized in that: The anti-slip foot support (34) includes a screw (3401), a limiting nut (3402) and an anti-slip plate (3404), wherein the screw (3401) is threadedly connected to the bottom of the docking portion (33), and a ball head (3403) is provided at the other end of the screw (3401), wherein the ball head (3403) is movably provided at the top of the anti-slip plate (3404), and the limiting nut (3402) is movably provided on the screw (3401).

9. The assembled aluminum alloy square tube ladder according to claim 8, characterized in that: A groove (3405) is provided at the bottom of the anti-slip plate (3404), a rubber layer is provided in the groove (3405), and a plurality of protrusions are provided at the bottom of the rubber layer.

10. The assembled aluminum alloy square tube ladder according to claim 8, characterized in that: A groove (3405) is provided at the bottom of the anti-slip plate (3404), an anchor plate is provided in the groove (3405), and the anchor plate includes a fixing plate, a plurality of anchors extending downward are provided at the bottom of the fixing plate, and the fixing plate is fixed in the groove (3405) by screws.

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