Ladder

Abstract

The utility model provides a ladder, and relates to the technical field of ladders, the ladder comprises a first supporting assembly and a second supporting assembly which are arranged at an interval, the first supporting assembly comprises a first supporting rod and a second supporting rod which are rotatably connected, the second supporting assembly comprises a third supporting rod and a fourth supporting rod which are rotatably connected, the rotating axes of the first supporting rod and the second supporting rod and the rotating axes of the third supporting rod and the fourth supporting rod are located on the same straight line, and the first supporting rod, the second supporting rod, the third supporting rod and the fourth supporting rod are sequentially arranged in the extending direction of the rotating axes. The at least one pedal is arranged between the second supporting rod and the third supporting rod; the cross rod is connected with the first supporting rod and the fourth supporting rod; and the panel is rotationally connected between the second supporting rod and the third supporting rod. In the embodiment of the invention, the size of the ladder can be effectively reduced under the condition that the ladder is folded and stored.

Description

Technical Field

[0001] The present application relates to the technical field of ladders, and in particular to a ladder. Background Art

[0002] Ladders are an important tool that is indispensable in every family's daily life. However, the ladders currently sold on the market are not beautiful enough, have single functions, occupy a large area, and have few usage scenarios. After use, they can only be hidden in a corner, and they also take up valuable space in the home. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a ladder, which aims to effectively solve the problem that traditional ladders occupy a large space.

[0004] The ladder of the embodiment of the present application includes:

[0005] a first support assembly and a second support assembly arranged at intervals, the first support assembly comprising a first support rod and a second support rod rotatably connected, the second support assembly comprising a third support rod and a fourth support rod rotatably connected, wherein a rotation axis of the first support rod and the second support rod and a rotation axis of the third support rod and the fourth support rod are located on the same straight line, and the first support rod, the second support rod, the third support rod and the fourth support rod are arranged in sequence along an extension direction of the rotation axis;

[0006] at least one pedal, the pedal being disposed between the second support rod and the third support rod;

[0007] at least one crossbar connecting the first support bar and the fourth support bar; and

[0008] The panel is rotatably connected between the second support rod and the third support rod, and drives the panel to rotate around its rotation axis, so that the panel can abut against one of the cross bars.

[0009] Furthermore, the panel is provided with an engaging portion, and the engaging portion is used to cooperate with the cross bar.

[0010] Furthermore, the pedal is rotatably connected to the second support rod and the third support rod, and the ladder further includes a pull rod, one end of the pull rod is rotatably connected to the pedal, and the other end of the pull rod is rotatably connected to the panel.

[0011] Furthermore, it also includes a pad, which is arranged between the pedal and the second support rod; and / or, the pad is also arranged between the pedal and the third support rod; and / or, the pad is arranged between the panel and the second support rod; and / or, the pad is arranged between the panel and the third support rod.

[0012] Furthermore, a protective cover is included, and the upper end of at least one of the first support rod, the second support rod, the third support rod and the fourth support rod is provided with the protective cover.

[0013] Furthermore, the top of the protective cover is in the shape of an arc.

[0014] Furthermore, a support pad is included, and a bottom of at least one of the first support rod, the second support rod, the third support rod and the fourth support rod is installed on the support pad.

[0015] Furthermore, it also includes a fixing structure, which includes a connecting rod, and the connecting rod connects the first support rod and the fourth support rod.

[0016] Furthermore, a finishing layer is provided on the outer surface of at least one of the first support assembly, the second support assembly, the pedal and the crossbar.

[0017] Furthermore, at least one of the first support rod, the second support rod, the third support rod and the fourth support rod is a hollow structure.

[0018] It can be seen from the above technical solutions that the embodiments of the present application have at least the following beneficial effects:

[0019] In the ladder provided by the embodiment of the present application, the first support rod and the second support rod of the first support assembly are arranged in sequence along the extension direction of their rotation axis, and the third support rod and the fourth support rod of the second support assembly are arranged in sequence along the extension direction of their rotation axis. In this way, the first support rod and the second support rod can rotate relative to each other around their rotation axis to a state of parallel distribution. At this time, the thickness of the folded first support assembly is the width of one of the first support rod and the second support rod. In this way, the volume of the ladder is effectively reduced when folded and stored. At the same time, after the ladder is unfolded, one side of the panel is rotatably connected to the second support rod and the third support rod, and the other side of the panel can also abut against the crossbar on one side. In this way, the panel can be firmly supported, thereby improving the support stability and safety of the panel. In addition, the panel can also be used for purposes such as riding and placing objects, which can enrich the functions and usage scenarios of the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A schematic structural diagram of a ladder provided in accordance with an embodiment of the present application;

[0022] Figure 2 A schematic structural diagram of a ladder provided by an embodiment of the present application from another perspective;

[0023] Figure 3 A schematic diagram of the structure of a ladder provided in an embodiment of the present application after folding;

[0024] Figure 4 Another schematic diagram of a folded ladder provided by an embodiment of the present application;

[0025] Figure 5 Another schematic diagram of a folded ladder provided in one embodiment of the present application.

[0026] Reference numerals:

[0027] 110, first support assembly; 111, first support rod; 112, second support rod; 121, third support rod; 122, fourth support rod; 130, protective cover; 140, support pad;

[0028] 200, pedal;

[0029] 310, first crossbar; 320, second crossbar;

[0030] 410, panel; 411, engaging portion; 420, first rotating shaft;

[0031] 500. Pull rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] See also Figures 1 to 5As shown, the embodiment of the present application discloses a ladder that can reduce the volume of the ladder after storage and enrich the functions and uses of the ladder. The ladder includes a first support assembly 110, a second support assembly, a step 200, a crossbar and a panel 410.

[0034] Specifically, the first support assembly 110 and the second support assembly are spaced apart, wherein the first support assembly 110 includes a first support rod 111 and a second support rod 112 that are rotatably connected, and the second support assembly includes a third support rod 121 and a fourth support rod 122 that are rotatably connected, the rotation axis of the first support rod 111 and the second support rod 112 is a, the rotation axis of the third support rod 121 and the fourth support rod 122 is b, the rotation axis a and the rotation axis b are located on the same straight line, and the first support rod 111 and the second support rod 112 are located on the same straight line. , the third support rod 121 and the fourth support rod 122 are sequentially arranged along the extension direction of the aforementioned rotation axis a or the rotation axis b; there is at least one pedal 200, which is arranged between the second support rod 112 and the third support rod 121; there is at least one crossbar, which connects the first support rod 111 and the fourth support rod 122; and the panel 410 is rotatably connected between the second support rod 112 and the third support rod 121, driving the panel 410 to rotate around its rotation axis, so that the panel 410 can abut against one of the crossbars. Wherein, the rotation axis of the panel 410 is d, as shown in FIG. Figure 2 shown.

[0035] In the ladder provided in the embodiment of the present application, the first support rod 111 and the second support rod 112 of the first support assembly 110 are arranged in sequence along the extension direction of their rotation axis, and the third support rod 121 and the fourth support rod 122 of the second support assembly are arranged in sequence along the extension direction of their rotation axis. In this way, the first support rod 111 and the second support rod 112 can rotate relative to each other along their rotation axis to a parallel distribution state. At this time, the thickness of the first support assembly 110 after folding is the thickness of one of the first support rod 111 and the second support rod 112, thereby effectively reducing the volume of the ladder when folded and stored. At the same time, when the ladder is unfolded, one side of the panel 410 is rotatably connected to the second support rod 112 and the third support rod 121, and the panel 410 can also abut against the crossbar on one side. In this way, the panel 410 can be firmly supported, thereby improving the support security of the panel 410. In addition, the panel 410 can also be used for sitting, placing objects, etc., enriching the functions, uses, and usage scenarios of the ladder.

[0036] It should be pointed out that in the embodiment of the present application, the first support rod 111 of the first support assembly 110 is connected to the fourth support rod 122 through a cross rod so that the two remain relatively fixed, and when one of the first support rod 111 and the fourth support rod 122 is rotated, the other can also rotate accordingly; the second support rod 112 of the first support assembly 110 is connected to the third support rod 121 of the second support assembly through the pedal 200 and the panel 410, so that the two remain relatively fixed, and when one of the second support rod 112 and the third support rod 121 is rotated, the other can also rotate accordingly.

[0037] In some embodiments of the present application, one side of the panel 410 is rotatably connected between the second support rod 112 and the third support rod 121. Specifically, the ladder further includes a first rotating shaft 420, and the panel 410 is rotatably connected to the second support rod 112 and the third support rod 121 respectively through the first rotating shaft 420.

[0038] In some embodiments of the present application, the panel 410 is provided with a snap-fit ​​portion 411, which is used to engage with the crossbar. Specifically, the snap-fit ​​portion 411 is located at the bottom of the panel 410 and has a recessed area. When the ladder is deployed, the crossbar is at least partially located in the snap-fit ​​portion 411. In this way, when the snap-fit ​​portion 411 engages with the crossbar, the crossbar can provide support for the panel 410 to limit the rotation of the panel 410, thereby ensuring that the panel 410 is firmly supported. At the same time, when the snap-fit ​​portion 411 engages with the crossbar, the crossbar is at least located in the recessed area of ​​the snap-fit ​​portion 411. In other words, the snap-fit ​​portion 411 blocks the crossbar in the width direction of the panel 410. In this way, the opening of the first support rod 111 and the second support rod 112 can be controlled by the engagement of the snap-fit ​​portion 411 with the crossbar, preventing the ladder from continuing to deploy during operation, thereby improving the safety of the ladder.

[0039] In the embodiment of the present application, the panel 410 can provide support for other objects or users, and can also limit the relative movement of the first support rod 111 and the second support rod 112, thereby improving the safety of the ladder. It can also avoid the need for additional structures to limit the rotation of the first support rod 111 and the second support rod 112, which is conducive to simplifying the structural design of the ladder and improving the aesthetics of the ladder.

[0040] It is worth understanding that when the engaging portion 411 of the panel 410 is engaged with the cross bar, the panel 410 can also restrict the rotation of the third support rod 121 and the fourth support rod 122 of the second support assembly.

[0041] In one possible embodiment, the engaging portion 411 includes a plurality of engaging grooves spaced apart at the bottom of the panel 410, each of which can be engaged with a crossbar. Thus, by engaging the crossbar with different engaging grooves, the opening and closing angles of the first support rod 111 and the second support rod 112 can be changed.

[0042] It should be noted that in the embodiment of the present application, the height of the first rotating shaft 420 is flush with the height of one of the cross bars. In this way, when the panel 410 abuts against the cross bar on one side, the top surface of the panel 410 can maintain a horizontal state.

[0043] In this embodiment, see Figure 1 and Figure 2 The ladder includes two crossbars, namely a first crossbar 310 and a second crossbar 320. The first crossbar 310 and the second crossbar 320 are spaced apart and arranged between the first support rod 111 and the fourth support rod 122. The second crossbar 320 is flush with the rotation axis d of the panel 410, and the engaging portion 411 of the panel 410 is engaged with the upper end of the second crossbar 320.

[0044] It should be noted that the crossbar can be connected between the first support bar 111 and the fourth support bar 122 to further reduce the thickness of the ladder after folding, or it can be set on the side or other positions of the first support bar 111 and the second support bar 122.

[0045] In the embodiment of the present application, the thickness of the ladder after folding refers to the thickness of the ladder after folding. Figure 4 The lengths of the left and right ends in the shown state.

[0046] It is worth noting that the engaging portion 411 may also be a stop structure with one end connected to the bottom of the panel 410 and the other end extending away from the panel 410. When the crossbar is located within the stop structure, the first support rod 111 and the second support rod 112 of the ladder are restricted from further rotation, thereby keeping the two relatively fixed.

[0047] In some embodiments of this application, see Figures 1 to 4 The step 200 is rotatably connected to the second support rod 112 and the third support rod 121. The ladder further includes a pull rod 500, one end of which is rotatably connected to the step 200, and the other end of which is rotatably connected to the panel 410. Specifically, the pull rod 500 is arranged parallel to the second support rod 112 or the third support rod 121. In this way, when the panel 410 and the second support rod 112 rotate relative to each other, the panel 410 can drive the step 200 to rotate together through the pull rod 500, so that the support surface of the step 200 is located in the same plane as the second support rod 112 and the third support rod 121, thereby reducing the volume of the step 200 after storage.

[0048] In the above embodiment, the pull rod 500 connects the panel 410 and the pedal 200. When the ladder is unfolded and the panel 410 abuts against the crossbar, the pull rod 500 connects the panel 410 and the pedal 200, which can limit the rotation of the pedal 200 relative to the second support rod 112. In this way, the pedal 200 can provide a larger support area, which also helps to improve safety.

[0049] In the embodiment of the present application, the number of pedals 200 can be set according to the length of the second support rod 112 and the third support rod 121, so that the distance between two adjacent pedals 200 meets the usage requirements. In particular, when there are multiple pedals 200, each pedal 200 is rotatably connected to the pull rod 500.

[0050] In some other embodiments, the step 200 may also be fixedly connected to the second support rod 112 and the third support rod 121. In this case, the thickness of the step 200 should be less than or equal to the thickness of the second support rod 112 to ensure that the ladder can maintain a small footprint after being folded.

[0051] In some embodiments of the present application, the ladder further includes a spacer (not shown in the figures), which is disposed between the step 200 and the second support rod 112. The spacer defines a certain distance between the step 200 and the second support rod 112, thereby preventing the step 200 from directly contacting and rubbing against the second support rod 112 during rotation, thereby ensuring a beautiful surface finish on the second support rod 112.

[0052] In some embodiments of the present application, a pad is further provided between the pedal 200 and the third support rod 121. The provision of the pad allows a certain distance to be defined between the pedal 200 and the third support rod 121, thereby preventing the pedal 200 from directly contacting and causing friction with the third support rod 121 during rotation, thereby ensuring a beautiful surface of the third support rod 121.

[0053] In this embodiment, pads are provided at both ends of the pedal 200 to prevent the pedal 200 from directly contacting the second support rod 112 or the third support rod 121 and generating friction.

[0054] Furthermore, in some embodiments, a spacer is disposed between the panel 410 and the second support rod 112 .

[0055] Furthermore, in some embodiments, a spacer is disposed between the panel 410 and the third support rod 121 .

[0056] In some embodiments of the present application, the ladder further includes a protective cover 130 , and at least one of the first support rod 111 , the second support rod 112 , the third support rod 121 , and the fourth support rod 122 is provided with the protective cover 130 .

[0057] In one possible embodiment, protective covers 130 are provided on the tops of the first support rod 111, the second support rod 112, the third support rod 121, and the fourth support rod 122. This allows the user to place their hands on the tops of the support rods while sitting on the panel 410. The provision of protective covers 130 prevents the user from directly contacting the tops of the support rods, thereby improving the riding experience.

[0058] Further, see Figure 1 and Figure 2 In one possible embodiment, the top of the protective cover 130 is configured as an arc. Specifically, the center of the arcuate surface of the protective cover 130 is located on the rotation axis a of the ladder. The tops of adjacent protective covers 130 can form a relatively continuous and flat support surface, which helps to increase the support area, better serve as a handrail, and also helps to prevent users from being scratched by sharp edges.

[0059] It is worth noting that the surface of the protective cover 130 can also be set to a plane or a surface shape consisting of a plane and an arc surface as needed, which is not limited here.

[0060] In some embodiments of the present application, the ladder further includes a support pad 140, and the bottom of at least one of the first support rod 111, the second support rod 112, the third support rod 121, and the fourth support rod 122 is mounted on the support pad 140. The support pad 140 can be used to increase friction with the ground, protect the ground, or improve the quietness of the ladder.

[0061] In one possible embodiment, the bottom of the support pad 140 is provided with a rough texture. For example, the bottom of the first support rod 111, the second support rod 112, the third support rod 121, and the fourth support rod 122 are all provided with a support pad 140, and the surface of each support pad 140 is provided with a rough texture to enhance the anti-slip effect.

[0062] It should be noted that the aforementioned rough texture may be a raised structure arranged at intervals, or a contact surface obtained by removing material from a plane structure, etc., to enhance the anti-slip effect.

[0063] In some embodiments of the present application, the ladder further includes a fixing structure, which includes a connecting rod connecting the first support rod 111 and the fourth support rod 122. This helps to improve the structural strength of the first support rod 111 and the second support rod 112.

[0064] In a possible embodiment, the fixing structure is composed of two cross-arranged connecting rods, and one end of the two connecting rods is connected to the first support rod 111, and the other end is connected to the fourth support rod 122. In this way, the connection stability of the ladder can be improved.

[0065] In some embodiments of the present application, a finishing layer is provided on the outer surface of at least one of the first support assembly 110, the second support assembly, the step 200, and the crossbar. The finishing layer can be selected according to the usage scenario of the ladder.

[0066] In a possible embodiment, the finishing layer is configured as a wood grain layer having a wood grain color, so that the ladder can be matched with different home styles.

[0067] Furthermore, the finishing layer is treated with a waterproof and antifouling process, so that the ladder has waterproof and antifouling capabilities, making it easier to clean the ladder.

[0068] In some embodiments of the present application, at least one of the first support rod 111, the second support rod 112, the third support rod 121, and the fourth support rod 122 is a hollow structure, which can reduce the overall weight of the ladder and improve the portability of the ladder.

[0069] Furthermore, the panels 410, support rods and crossbars of the ladder are made of lightweight metal to reduce the overall weight of the ladder. For example, the support rods, panels 410 and crossbars of the ladder are made of aluminum alloy.

[0070] Of course, the ladder can also be made of other materials, such as other metal materials, alloy materials, wood, etc., which are not limited here.

[0071] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0072] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0073] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0074] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A ladder, characterized in that: include: a first support assembly and a second support assembly arranged at intervals, the first support assembly comprising a first support rod and a second support rod rotatably connected, the second support assembly comprising a third support rod and a fourth support rod rotatably connected, wherein a rotation axis of the first support rod and the second support rod and a rotation axis of the third support rod and the fourth support rod are located on the same straight line, and the first support rod, the second support rod, the third support rod and the fourth support rod are arranged in sequence along an extension direction of the rotation axis; at least one pedal, the pedal being disposed between the second support rod and the third support rod; at least one crossbar connecting the first support bar and the fourth support bar; and The panel is rotatably connected between the second support rod and the third support rod, and drives the panel to rotate around its rotation axis, so that the panel can abut against one of the cross bars.

2. The ladder according to claim 1, characterized in that The panel is provided with an engaging portion, and the engaging portion is used to cooperate with the crossbar.

3. The ladder according to claim 1 or 2, characterized in that The pedal is rotatably connected to the second support rod and the third support rod. The ladder further comprises a pull rod, one end of which is rotatably connected to the pedal, and the other end of which is rotatably connected to the panel.

4. The ladder according to claim 3, characterized in that It also includes a pad, which is arranged between the pedal and the second support rod; and / or, the pad is also arranged between the pedal and the third support rod; and / or, the pad is arranged between the panel and the second support rod; and / or, the pad is arranged between the panel and the third support rod.

5. The ladder according to claim 1, characterized in that It also includes a protective cover, and the upper end of at least one of the first support rod, the second support rod, the third support rod and the fourth support rod is provided with the protective cover.

6. The ladder according to claim 5, characterized in that The top of the protective cover is arranged in an arc shape.

7. The ladder according to claim 1, characterized in that A support pad is also included, and a bottom of at least one of the first support rod, the second support rod, the third support rod and the fourth support rod is installed on the support pad.

8. The ladder according to claim 1, characterized in that It also includes a fixing structure, which includes a connecting rod, and the connecting rod connects the first supporting rod and the fourth supporting rod.

9. The ladder according to claim 1, characterized in that A finishing layer is provided on an outer surface of at least one of the first support assembly, the second support assembly, the pedal, and the crossbar.

10. The ladder according to claim 1, wherein At least one of the first support rod, the second support rod, the third support rod, and the fourth support rod is a hollow structure.

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