A temporary ladder for construction sites

Abstract

This utility model discloses a temporary ladder for construction sites, comprising: two sets of main keels arranged side by side, and multiple sets of main step crossbars evenly arranged between the two sets of main keels; two sets of secondary keels arranged side by side, and multiple sets of secondary step crossbars evenly arranged between the two sets of secondary keels, the two sets of secondary keels being slidably arranged inside the two sets of main keels; and an adjustment support unit disposed between the lower ends of the two sets of secondary keels and each of the main step crossbars. Through the adjustment support unit between the main and secondary keels, the lengths of the main and secondary keels can be quickly and conveniently adjusted to adapt to different height differences in different construction scenarios. The structure is simple and easy to adjust.

Description

Technical Field

[0001] This utility model relates to the field of construction site equipment technology, specifically a temporary ladder for construction sites. Background Technology

[0002] During construction, there are numerous scenarios requiring workers to climb up and down, such as foundation pit construction, subway shaft construction, and high-rise building main structure construction. In these scenarios, the formal staircase structure is often not yet completed, or scaffolding is not covering certain areas. Construction workers need to use temporary ladders to complete their work, making temporary ladders an indispensable auxiliary tool in construction.

[0003] Currently, ladders are generally divided into integral and folding types, which can only adapt to limited distances and are difficult to adapt to changes in height differences in different construction scenarios. Therefore, we designed a temporary ladder for construction sites.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a temporary ladder for construction sites to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: A temporary ladder for construction sites, comprising:

[0006] Two sets of main keels arranged side by side, and multiple sets of main step crossbars evenly arranged between the two sets of main keels;

[0007] Two sets of secondary keels arranged side by side, and multiple sets of secondary step crossbars evenly arranged between the two sets of secondary keels; the two sets of secondary keels are slidably arranged inside the two sets of main keels.

[0008] An adjustment support unit is disposed between the lower ends of the two sets of secondary keels and each of the main step crossbars. It is used to adjust the total length between the main keel and the secondary keel when the main keel is in an inclined use state, and to support the total length.

[0009] Preferably, the two sets of main keels are provided with sliding grooves on the sides close to each other, and the two sets of secondary keels are provided with sliders for sliding within the sliding grooves on the sides close to the main keels.

[0010] Preferably, the adjusting support unit includes:

[0011] Multiple sets of stop blocks are respectively set on each set of main step crossbars, and together with the main step crossbars, they form an L-shaped support structure;

[0012] Two sets of support rods are symmetrically arranged on the side of the secondary keel that are close to each other. One end of the support rod is rotatably mounted on the secondary keel, and the other end abuts against the L-shaped support structure.

[0013] An elastic support member is disposed between the support rod and the secondary keel to provide an elastic force for the support rod to support outward.

[0014] Preferably, a limit plate is provided on the secondary keel at the support rod to limit the maximum rotation angle of the support rod.

[0015] Preferably, the elastic support member includes:

[0016] The slide rod has one end rotatably connected to the support rod, and the other end slidably connected to a slide cylinder, which is fixedly mounted on the secondary keel;

[0017] A limiting sliding groove is provided inside the slide cylinder, and a limiting circular plate is provided at the end of the slide rod for limiting the slide rod to slide within the limiting sliding groove;

[0018] A limiting spring is disposed in the limiting sliding groove, with one end abutting against the limiting circular plate and the other end abutting against the end wall of the limiting sliding groove.

[0019] Preferably, the side wall of the limiting circular plate is provided with an elastic protrusion, and the lower end of the slide cylinder is provided with a through hole.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention allows for quick and convenient adjustment of the length of the main and secondary keels by setting up an adjustable support unit between the main and secondary keels to adapt to different height differences in different construction scenarios. The structure is simple and easy to adjust. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is an overall structural diagram of the present invention from another perspective;

[0024] Figure 3 This is a front sectional view of the present invention;

[0025] Figure 4 This is a partial sectional view of the adjustable support unit of this utility model;

[0026] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0028] Reference numerals: 1-Main keel; 11-Slide groove; 12-Slider; 2-Main step crossbar; 3-Secondary keel; 4-Secondary step crossbar; 5-Adjusting support unit; 51-Stop block; 52-Support rod; 53-Elastic support component; 531-Slide rod; 532-Slide cylinder; 533-Limiting sliding groove; 534-Limiting circular plate; 535-Limiting spring; 536-Elastic protrusion; 537-Through hole; 6-Limiting plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a temporary ladder for construction sites, comprising:

[0031] Two sets of main keels 1 are arranged side by side, and multiple sets of main step crossbars 2 are evenly arranged between the two sets of main keels 1 to connect the two sets of main keels 1.

[0032] Two sets of secondary keels 3 are arranged side by side, and multiple sets of secondary step crossbars 4 are evenly arranged between the two sets of secondary keels 3 to connect the two sets of secondary keels 3. The two sets of secondary keels 3 are slidably arranged inside the two sets of main keels 1.

[0033] Adjustable support unit 5 is disposed between the lower ends of the two sets of secondary keels 3 and each of the main step crossbars 2, and is used to adjust the total length between the main keel 1 and the secondary keels 3 and to support the total length when the main keel 1 is in an inclined use state.

[0034] Among them, the two sets of main keels 1 are provided with sliding grooves 11 on the side close to each other, and the two sets of secondary keels 3 are provided with sliders 12 for sliding in the sliding grooves 11 on the side close to the main keel 1, so that the secondary keels 3 can slide stably on the main keel 1.

[0035] In addition, the adjustment support unit 5 includes:

[0036] Multiple sets of stop blocks 51 are respectively set on each set of main step crossbars 2, and together with the main step crossbars 2, they form an L-shaped support structure;

[0037] Two sets of support rods 52 are symmetrically arranged on the side of the secondary keel 3 that are close to each other. One end of the support rod 52 is rotatably mounted on the secondary keel 3, and the other end abuts against the L-shaped support structure.

[0038] In order for the support rod to better abut against the L-shaped support structure, the end of the support rod 52 is arc-shaped. After the length range is determined, the arc end of the support rod abuts against the inflection point of the L-shaped support structure.

[0039] An elastic support member 53 is disposed between the support rod 52 and the secondary keel 3, and is used to provide an elastic force for the support rod 52 to support it outward, so that the end of the support rod 52 abuts against the L-shaped support structure.

[0040] Meanwhile, a limiting plate 6 is provided on the secondary keel 3 at the support rod 52 to limit the maximum rotation angle of the support rod 52 so that the end of the support rod 52 just abuts against the L-shaped support structure.

[0041] The elastic support member 53 includes:

[0042] The slide rod 531 has one end rotatably connected to the support rod 52, and the other end is slidably connected to the slide cylinder 532, which is fixedly mounted on the secondary keel 3;

[0043] A limiting sliding groove 533 is provided inside the slide cylinder 532, and a limiting circular plate 534 is provided at the end of the slide rod 531 for limiting the slide rod 531 to slide within the limiting sliding groove 533;

[0044] A limiting spring 535 is disposed in the limiting sliding groove 533, with one end abutting against the limiting circular plate 534 and the other end abutting against the end wall of the limiting sliding groove 533.

[0045] Finally, the side wall of the limiting circular plate 534 is provided with an elastic protrusion 536, and the lower end of the sliding cylinder 532 is provided with a through hole 537.

[0046] When using it, first adjust the total length of the main keel 1 and the secondary keel 3 according to the on-site construction requirements. When adjusting the length, the device can be placed directly on the ground, and then the secondary keel 3 can be slid on the main keel 1. When the length is adjusted to an appropriate length, the support rod 52 can be abutted in the L-shaped support structure. Then, tilt the device to the construction wall position. Since the device is in a vertical tilted state, the support rod 52 can be stably abutted in the L-shaped support structure under the gravity of the secondary keel 3.

[0047] Meanwhile, since the support is an elastic support, when adjusting the length, the support rod 52 automatically springs into the L-shaped support groove;

[0048] Finally, after construction is completed, when storing the secondary keel 3, the support rod 52 can be pressed against the elastic support 53 side, so that the elastic protrusion 536 pops into the through hole 537, thus storing the support rod 52. When using it again, the elastic protrusion 536 can be pressed inward, and under the action of the limit spring 535, the support rod 52 will pop out for length adjustment.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction site temporary ladder, characterised in that, include: Two sets of main keels (1) are arranged side by side, and multiple sets of main step crossbars (2) are evenly arranged between the two sets of main keels (1); Two sets of secondary keels (3) are arranged side by side, and multiple sets of secondary step crossbars (4) are evenly arranged between the two sets of secondary keels (3). The two sets of secondary keels (3) are slidably arranged inside the two sets of main keels (1). An adjustment support unit (5) is set between the lower ends of the two sets of secondary keels (3) and each of the main step crossbars (2) to adjust the total length between the main keel (1) and the secondary keel (3) when the main keel (1) is in an inclined use state, and to support the total length.

2. A construction site temporary ladder stand according to claim 1, characterised in that The two sets of main keels (1) are provided with sliding grooves (11) on the side close to each other, and the two sets of secondary keels (3) are provided with sliders (12) for sliding in the sliding grooves (11) on the side close to the main keel (1).

3. A construction site temporary ladder stand according to claim 1, characterised in that The adjustment support unit (5) includes: Multiple sets of stop blocks (51) are respectively set on each set of main step crossbars (2), and together with the main step crossbars (2), they form an L-shaped support structure; Two sets of support rods (52) are symmetrically arranged on the side of the secondary keel (3) close to each other. One end of the support rod (52) is rotatably set on the secondary keel (3), and the other end abuts against the L-shaped support structure. An elastic support member (53) is disposed between the support rod (52) and the secondary keel (3) to provide an elastic force for the support rod (52) to support outward.

4. A temporary ladder for construction sites according to claim 3, characterized in that, A limiting plate (6) is provided on the secondary keel (3) at the support rod (52) to limit the maximum rotation angle of the support rod (52).

5. A temporary ladder for construction sites according to claim 3, characterized in that, The elastic support member (53) includes: The slide rod (531) is rotatably connected to the support rod (52) at one end and has a slide cylinder (532) slidably connected at the other end. The slide cylinder (532) is fixedly installed on the secondary keel (3). A limiting sliding groove (533) is provided inside the sliding cylinder (532), and a limiting circular plate (534) is provided at the end of the sliding rod (531) for limiting the sliding of the sliding rod (531) within the limiting sliding groove (533); A limiting spring (535) is disposed in the limiting sliding groove (533), with one end abutting against the limiting circular plate (534) and the other end abutting against the end wall of the limiting sliding groove (533).

6. A temporary ladder for construction sites according to claim 5, characterized in that, The limiting circular plate (534) has an elastic protrusion (536) on its side wall, and the lower end of the sliding cylinder (532) has a through hole (537).

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