Telescopic steel ladder stand

Abstract

The utility model relates to a telescopic steel ladder stand which comprises two first side plates, two second side plates are arranged between the two first side plates, pedals are arranged between the two first side plates and the two second side plates, and mounting mechanisms are arranged on the pedals. According to the telescopic steel ladder stand, by arranging the mounting mechanism, when ladder stand pedals need to be replaced, only fixing bolts need to be taken down, then the pedals are moved outwards along mounting grooves, mounting blocks are made to be separated from the mounting grooves, then the mounting blocks of new pedals are inserted into the mounting grooves, sliding blocks can make contact with and extrude ejector rods in the insertion process, the ejector rods continuously extrude springs, and then the pedals can be replaced. When the ladder stand is installed, the limiting rods move outwards, then the fixing bolts are screwed into the limiting holes to fix the limiting rods, then installation and replacement of the pedals are completed, and the length of the ladder stand can be freely adjusted conveniently by arranging the second side plates, the first adjusting holes and the second adjusting holes.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to a telescopic steel ladder. Background Art

[0002] Ladders are very common in daily life, and they facilitate operators to move up and down vertical walls. Ladders are generally made of steel bars. They are suitable for different areas, different conditions, and different development needs. They have good corrosion resistance and flame retardancy, high strength, and easy installation. When working at a certain height, you need to use a ladder.

[0003] Currently on the market, the footrests in the middle of the ladder are welded to the support rods at both ends of the ladder. Therefore, when some footrests in the middle of the ladder are damaged, it is difficult to replace and repair them, which easily causes construction risks. Therefore, a telescopic steel ladder is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a telescopic steel ladder, which has the advantages of easy replacement of pedals and the like, and solves the problem of inconvenience in replacing pedals.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: a telescopic steel ladder, comprising two first side panels, two second side panels are arranged between the two first side panels, a stepping plate is arranged between the two first side panels and the two second side panels, and a mounting mechanism is arranged on the stepping plate;

[0008] The mounting mechanism includes a mounting block, a mounting slot, a fixing plate, a mounting hole, a slide slot, a spring, a slider, a push rod, a fixing bolt and a limit rod, the two first side plates and the adjacent side wall of the two second side plates are fixedly mounted with a mounting block, the side wall of the mounting block is provided with a mounting slot, the left and right sides of the pedal are fixedly mounted with a fixing plate, the fixing plate is provided with a mounting hole, the left and right side walls of the mounting hole are provided with a slide slot, the front inner wall of the slide slot is fixedly mounted with a spring, the tops of the two springs are fixedly mounted with a slide slot, the rear inner wall of the mounting slot is fixedly mounted with a push rod, a fixing bolt is provided on the mounting block, and a limit rod is fixedly mounted on the front side of the slider.

[0009] Furthermore, a plurality of first adjustment holes are formed on the side wall of the second side plate, and a second adjustment hole is formed on the side wall of the first side plate.

[0010] Furthermore, a bolt is provided between the first adjustment hole and the second adjustment hole, and the sizes of the first adjustment hole and the second adjustment hole are matched.

[0011] Furthermore, the number of the pedals is more than five, and a limiting hole is provided on the limiting rod.

[0012] Furthermore, a non-slip pad is provided on the top wall of the pedal board, and the size of the pedal board at the front side is larger than that of the pedal board at the rear side.

[0013] Furthermore, the size of the first side plate is greater than that of the second side plate, and a support block is fixedly installed at the bottom of the first side plate.

[0014] Furthermore, the outer wall of the limiting rod is slidably connected to the inner wall of the mounting hole, and the left and right ends of the sliding block are slidably connected to the sliding groove.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] The telescopic steel ladder is provided with an installation mechanism. When it is necessary to replace the ladder stepping plate, it is only necessary to remove the fixing bolt, move the stepping plate outward along the installation groove, disengage the mounting block from the installation groove, and then insert the mounting block of the new stepping plate into the installation groove. During the insertion process, the slider will contact and squeeze the push rod, and the push rod will continuously squeeze the spring to move the limit rod outward. At this time, the fixing bolt is screwed into the limit hole to fix the limit rod, and the installation and replacement of the stepping plate is completed. By providing the second side plate, when it is necessary to extend the length of the ladder, it is only necessary to remove the bolt, move the second side plate upward, align the first adjustment hole at the corresponding position with the second adjustment hole, and finally insert the bolt into the first adjustment hole and the second adjustment hole. When it is necessary to shorten, the opposite operation can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the local structure of the utility model;

[0020] Figure 3 It is a top view of the local structure of the utility model;

[0021] Figure 4 For this utility model Figure 2 A magnified view of the structure in the middle.

[0022] In the figure: 1 first side plate, 2 second side plate, 3 pedal, 4 mounting mechanism, 401 mounting block, 402 mounting groove, 403 fixing plate, 404 mounting hole, 405 slide groove, 406 spring, 407 slider, 408 push rod, 409 fixing bolt, 410 limit rod, 5 first adjustment hole, 6 second adjustment hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A telescopic steel ladder in this embodiment includes two first side panels 1, two second side panels 2 are arranged between the two first side panels 1, and pedal boards 3 are arranged between the two first side panels 1 and the two second side panels 2, and a mounting mechanism 4 is arranged on the pedal boards 3.

[0025] The adjacent side walls of the two first side panels 1 and the two second side panels 2 are fixedly installed with mounting blocks 401, and the side walls of the mounting blocks 401 are provided with mounting grooves 402. The left and right sides of the pedal board 3 are fixedly installed with fixing plates 403, and the fixing plates 403 are provided with mounting holes 404. The left and right side walls of the mounting holes 404 are provided with sliding grooves 405. The front inner wall of the sliding groove 405 is fixedly installed with springs 406, and the tops of the two springs 406 are fixedly installed with sliders 407. The rear inner wall of the mounting groove 402 is fixedly installed with a push rod 408. The mounting block 401 is provided with a fixing bolt 409, and the slider 407 is fixedly installed with a push rod 408. A limit rod 410 is fixedly installed on the front side. By setting up the installation mechanism 4, when the ladder pedal 3 needs to be replaced, it is only necessary to remove the fixing bolt 409, and then move the pedal 3 outward along the installation groove 402 to make the mounting block 401 disengage from the mounting groove 402, and then insert the mounting block 401 of the new pedal 3 into the mounting groove 402. During the insertion process, the slider 407 will contact and squeeze the push rod 408, and the push rod 408 will continuously squeeze the spring to move the limit rod 410 outward. At this time, the fixing bolt 409 is screwed into the limiting hole to fix the limit rod 410, and the installation and replacement of the pedal 3 is completed.

[0026] The top wall of the pedal board 3 is provided with an anti-slip pad. The size of the front pedal board 3 is larger than that of the rear pedal board 3 . The front pedal board 3 is arranged between the two first side plates 1 , and the rear pedal board 3 is arranged between the two second side plates 2 .

[0027] When implementing, follow these steps:

[0028] 1) When the ladder step 3 needs to be replaced, it is only necessary to remove the fixing bolt 409, and then move the step 3 outward along the mounting groove 402 to separate the mounting block 401 from the mounting groove 402;

[0029] 2) Then insert the mounting block 401 of the new pedal board 3 into the mounting groove 402. During the insertion process, the slider 407 will contact and squeeze the push rod 408, so that the limit rod 410 moves outward. At this time, the fixing bolt 409 is screwed into the limit hole to fix the limit rod 410;

[0030] 3) Finally, when the length of the ladder needs to be extended, just remove the bolts, move the second side plate 2 upward, align the first adjustment hole 5 with the second adjustment hole 6 at the corresponding position, and finally insert the bolts into the first adjustment hole 5 and the second adjustment hole 6. When it needs to be shortened, just do the opposite operation.

[0031] To sum up, the telescopic steel ladder is provided with a mounting mechanism 4. When it is necessary to replace the ladder stepping pedal 3, it is only necessary to remove the fixing bolt 409, and then move the stepping pedal 3 outward along the mounting groove 402 to disengage the mounting block 401 from the mounting groove 402, and then insert the mounting block 401 of the new stepping pedal 3 into the mounting groove 402. During the insertion process, the slider 407 will contact and squeeze the push rod 408, and the push rod 408 will continuously squeeze the spring to move the limit rod 410 outward. At this time, the fixing bolt 409 is screwed into the limit hole to fix the limit rod 410, and the installation and replacement of the stepping pedal 3 is completed; by providing the second side plate 2, when it is necessary to extend the length of the ladder, it is only necessary to remove the bolt, then move the second side plate 2 upward, and align the first adjustment hole 5 with the second adjustment hole 6 at the corresponding position, and finally insert the bolt into the first adjustment hole 5 and the second adjustment hole 6. When it needs to be shortened, the opposite operation can be performed, which solves the problem of inconvenience in replacing the pedal.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic steel ladder, comprising two first side panels (1), characterized in that: Two second side panels (2) are arranged between the two first side panels (1), a pedal board (3) is arranged between the two first side panels (1) and the two second side panels (2), and a mounting mechanism (4) is arranged on the pedal board (3); The mounting mechanism (4) comprises a mounting block (401), a mounting groove (402), a fixing plate (403), a mounting hole (404), a sliding groove (405), a spring (406), a sliding block (407), a push rod (408), a fixing bolt (409) and a limiting rod (410); the mounting block (401) is fixedly mounted on one side wall adjacent to the two first side plates (1) and the two second side plates (2); the side wall of the mounting block (401) is provided with a mounting groove (402); the left and right sides of the stepping pedal (3) are fixedly mounted with fixing plates (410); 403), a mounting hole (404) is provided on the fixing plate (403), a sliding groove (405) is provided on the left and right side walls of the mounting hole (404), a spring (406) is fixedly installed on the front inner wall of the sliding groove (405), a slider (407) is fixedly installed on the top of the two springs (406), a top rod (408) is fixedly installed on the rear inner wall of the mounting groove (402), a fixing bolt (409) is provided on the mounting block (401), and a limiting rod (410) is fixedly installed on the front side of the slider (407).

2. A telescopic steel ladder according to claim 1, characterized in that: The side wall of the second side plate (2) is provided with a plurality of first adjustment holes (5), and the side wall of the first side plate (1) is provided with a second adjustment hole (6).

3. A telescopic steel ladder according to claim 2, characterized in that: A bolt is provided between the first adjustment hole (5) and the second adjustment hole (6), and the sizes of the first adjustment hole (5) and the second adjustment hole (6) are matched.

4. A telescopic steel ladder according to claim 1, characterized in that: The number of the pedals is more than five, and a limiting hole is provided on the limiting rod (410).

5. The telescopic steel ladder according to claim 1, characterized in that: The top wall of the pedal board (3) is provided with an anti-slip pad, and the size of the pedal board (3) at the front side is larger than the size of the pedal board (3) at the rear side.

6. A telescopic steel ladder according to claim 1, characterized in that: The size of the first side plate (1) is greater than the size of the second side plate (2), and a support block is fixedly mounted on the bottom of the first side plate (1).

7. A telescopic steel ladder according to claim 1, characterized in that: The outer wall of the limiting rod (410) is slidably connected to the inner wall of the mounting hole (404), and the left and right ends of the sliding block (407) are slidably connected to the sliding groove (405).

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