Folding diagonal draw bar for ladder

Abstract

The utility model provides a folding diagonal draw bar for a ladder, which relates to the technical field of high-altitude operation equipment and comprises a bar body, rotating shafts are arranged at two ends of the bar body, the bar body comprises a first supporting section and a second supporting section, and the first supporting section and the second supporting section are rotatably connected. A locking piece is arranged at the joint of the first supporting section and the second supporting section and used for limiting relative rotation of the first supporting section and the second supporting section. According to the diagonal draw bar provided by the invention, the end part of the diagonal draw bar adopts a rotary connection structure instead of bolt connection, a single diagonal draw bar is changed into a mode of connecting the short bar and the long bar, and the locking piece is arranged at the joint of the short bar and the long bar, so that a herringbone ladder or a scaffold provided with the diagonal draw bar can be quickly switched between a folded state and an unfolded state; folding can be completed without disassembly, so that the disassembly and assembly efficiency is improved, and the problems that an existing folding connecting structure is tedious in disassembly and assembly and bolt connecting pieces are prone to being lost can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aerial work equipment, and in particular relates to a folding inclined tie rod for a ladder. Background Art

[0002] When working at height, the ladder or scaffolding used by the workers needs to be reinforced with diagonal rods. The common diagonal rods are made of a hard long rod, and the two ends are connected to the ladder frame with bolts.

[0003] In order to improve portability, the ladders and scaffolding used in rail transit operations usually adopt a folding structure. When in use, the diagonal rods need to be connected to the ladder frame with bolts and need to be disassembled after use. Repeated disassembly and assembly make the use process more cumbersome, and the bolts are easy to fall off or lose, affecting use.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0005] The utility model aims to provide a folding diagonal tie rod for a ladder, which is used for connecting a stepladder or a scaffold, and can enable the stepladder or the scaffold to be quickly folded or installed, so as to solve the problems of complicated assembly and disassembly of the existing folding connection structure and easy loss of bolted connecting parts.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A folding inclined rod for a ladder comprises a rod body, both ends of which are provided with rotating shafts, the rod body comprises a first supporting section and a second supporting section, the first supporting section and the second supporting section are rotatably connected, a locking piece is provided at the connection between the first supporting section and the second supporting section, and the locking piece is used to limit the relative rotation of the first supporting section and the second supporting section.

[0008] Preferably, a folding joint is provided at the connection between the first supporting section and the second supporting section, and the locking member is used to lock the folding joint.

[0009] Preferably, the folding joint includes a first connecting end and a second connecting end, the first connecting end is fixedly connected to the first supporting segment, and the second connecting end is fixedly connected to the second supporting segment.

[0010] Preferably, toothed discs are provided on the opposite surfaces of the first connecting end and the second connecting end, and when the locking member is locked, the first connecting end and the second connecting end are meshed.

[0011] Preferably, the locking member includes a latch and a lever, the latch axially passes through the first connecting end and the second connecting end, and the lever is used to adjust the distance between the opposite surfaces of the first connecting end and the second connecting end.

[0012] Preferably, an eccentric shaft is provided at one end of the handle, and the eccentric shaft is rotatably connected to the end of the latch.

[0013] The utility model also provides a ladder, comprising two relatively arranged single ladders, wherein a group of X-shaped inclined braces are respectively provided on both sides of the single ladders, and both ends of the inclined braces are rotatably connected to the single ladders, and the inclined braces are selected from any one of the above-mentioned folding inclined braces for ladders.

[0014] Beneficial effects:

[0015] The ends of the diagonal tie rods provided in the present application adopt a rotating connection structure instead of a bolt connection, and the single diagonal tie rod is changed into a short rod connected to a long rod, and a locking piece is provided at the connection between the short rod and the long rod, so that the stepladder or scaffolding equipped with the diagonal tie rod can be quickly switched between the folded and unfolded states, and folding can be completed without disassembly, thereby improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0017] Figure 1 The present invention is a front view of a foldable diagonal tie rod for a ladder provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 It is a three-dimensional diagram of the second connecting end in the embodiment of the utility model.

[0020] Figure 4 It is a three-dimensional diagram of the handle in the embodiment of the utility model.

[0021] Figure 5 This is a three-dimensional diagram of a ladder provided in Example 2 of the utility model.

[0022] In the figure: 100, rod body; 200, first supporting section; 300, second supporting section; 400, locking member; 500, folding joint; 600, single ladder; 401, latch; 402, lever; 501, first connecting end; 502, second connecting end. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0028] The present invention will be described in detail below in conjunction with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0029] The utility model aims at the problem that the herringbone ladder and scaffolding used in rail transit operations are complicated to disassemble and assemble, and provides a folding inclined rod for a ladder, such as Figure 1As shown, the inclined tie rod includes a rod body 100, and a rotating shaft is provided at both ends of the rod body 100. The rod body 100 includes a first support segment 200 and a second support segment 300. The length of the first support segment 200 is shorter than that of the second support segment 300. The first support segment 200 and the second support segment 300 are rotatably connected. A locking member 400 is provided at the connection between the first support segment 200 and the second support segment 300. The locking member 400 is used to limit the relative rotation of the first support segment 200 and the second support segment 300.

[0030] Through the above arrangement, when the ladder needs to be folded, it is only necessary to switch the locking member 400 to the unlocked state so that the first support section 200 and the second support section 300 can rotate relative to each other, and the first support section 200 and the second support section 300 can be rotated to the overlapping position, thereby completing the folding of the ladder for easy carrying of the ladder; when the ladder needs to be used for aerial work, as described above, the first support section 200 and the second support section 300 are rotated from the overlapping position to form a straight line, and then locked by the locking member 400, so that the first support section 200 and the second support section 300 can be relatively fixed, and the assembly of the ladder is completed. In this process, there is no need to disassemble and assemble bolts, which greatly shortens the time of the disassembly and assembly process, thereby solving the cumbersome disassembly and assembly problem caused by the existing herringbone ladder and scaffolding connected by a single hard rod.

[0031] In the preferred embodiment of the utility model, Figure 1 As shown, a folding joint 500 is provided at the connection between the first support segment 200 and the second support segment 300. By providing the folding joint 500, the first support segment 200 and the second support segment 300 can rotate relative to each other, and the locking member 400 is used to lock the folding joint 500.

[0032] In the preferred embodiment of the utility model, Figure 2 As shown, the folding joint 500 includes a first connecting end 501 and a second connecting end 502 , the first connecting end 501 is fixedly connected to the first supporting segment 200 , and the second connecting end 502 is fixedly connected to the second supporting segment 300 .

[0033] Further, such as Figure 3 As shown, toothed discs are provided on the opposite surfaces of the first connecting end 501 and the second connecting end 502. When the locking member 400 is locked, the first connecting end 501 and the second connecting end 502 approach each other, so that the toothed discs are engaged, and the toothed discs are used to prevent the first supporting section 200 and the second supporting section 300 from rotating relative to each other.

[0034] In the preferred embodiment of the utility model, Figure 2As shown, the locking member 400 includes a latch 401 and a lever 402. The latch 401 axially passes through the first connection end 501 and the second connection end 502, and is used to connect the first connection end 501 and the second connection end 502 so that they can rotate relative to each other. The lever 402 is used to adjust the distance between the opposite surfaces of the first connection end 501 and the second connection end 502.

[0035] Specifically, Figure 4 As shown, an eccentric shaft is provided at one end of the lever 402, and the eccentric shaft is rotatably connected to the end of the latch 401. When the lever 402 is rotated, the eccentric shaft drives the latch 401 to move axially, and changes the distance between the opposite surfaces of the first connection end 501 and the second connection end 502. When the distance is minimum, the first connection end 501 and the second connection end 502 are meshed with each other. When the distance increases to a preset position, the first connection end 501 and the second connection end 502 are released from the meshing state and can rotate along the latch 401.

[0036] The utility model also provides a ladder, such as Figure 5 As shown, it includes two relatively arranged single ladders 600, each of which is provided with a group of X-shaped inclined rods on both sides of the single ladder 600, and both ends of the inclined rods are rotatably connected to the single ladder 600. The inclined rods are selected from any one of the above-mentioned folding inclined rods for ladders.

[0037] The folding inclined tie rod for ladder of the utility model is described in detail through specific embodiments below.

[0038] Example 1

[0039] This embodiment provides a foldable diagonal tie rod for a ladder, such as Figures 1 to 4 As shown, the inclined tie rod includes a rod body 100, and a rotating shaft is provided at both ends of the rod body 100. The rod body 100 includes a first support segment 200 and a second support segment 300. The first support segment 200 and the second support segment 300 are rotatably connected. A locking member 400 is provided at the connection between the first support segment 200 and the second support segment 300. The locking member 400 is used to limit the relative rotation of the first support segment 200 and the second support segment 300.

[0040] A folding joint 500 is provided at the connection between the first support segment 200 and the second support segment 300. The folding joint 500 includes a first connecting end 501 and a second connecting end 502. The first connecting end 501 is fixedly connected to the first support segment 200, and the second connecting end 502 is fixedly connected to the second support segment 300.

[0041] The opposite surfaces of the first connecting end 501 and the second connecting end 502 are provided with toothed discs. When the locking member 400 is locked, the first connecting end 501 and the second connecting end 502 are close to each other, so that the toothed discs are engaged, and the toothed discs are used to prevent the first supporting section 200 and the second supporting section 300 from rotating relative to each other.

[0042] The locking member 400 includes a latch 401 and a lever 402. The latch 401 axially passes through the first connection end 501 and the second connection end 502, and is used to connect the first connection end 501 and the second connection end 502 so that they can rotate relative to each other. An eccentric shaft is provided at one end of the lever 402, and the eccentric shaft is rotatably connected to the end of the latch 401. When the lever 402 is rotated, the eccentric shaft drives the latch 401 to move axially and changes the distance between the opposite surfaces of the first connection end 501 and the second connection end 502. When the distance is the smallest, the first connection end 501 and the second connection end 502 are meshed with each other. When the distance increases to a preset position, the first connection end 501 and the second connection end 502 are released from the meshing state and can rotate along the latch 401.

[0043] The present embodiment provides a folding inclined rod for a ladder, which has a folding state and a supporting state. When in the folding state, the first supporting section 200 and the second supporting section 300 rotate to an overlapping state, at which time the distance between the opposing surfaces of the first connecting end 501 and the second connecting end 502 is the largest; when in the supporting state, the first supporting section 200 and the second supporting section 300 rotate to form a straight line, at which time the distance between the opposing surfaces of the first connecting end 501 and the second connecting end 502 is the smallest, and they are meshed with each other, so that the first supporting section 200 and the second supporting section 300 cannot rotate relative to each other.

[0044] Example 2

[0045] This embodiment provides a ladder, such as Figure 2 As shown, it includes two relatively arranged single ladders 600, and a group of X-shaped inclined rods are respectively provided on both sides of the single ladder 600. The two ends of the inclined rods are rotatably connected to the single ladder 600. The inclined rods are a folding inclined rod for a ladder provided in Example 1. By adopting the above arrangement, the ladder can be quickly switched between the folding and supporting states by rotating the handle 402, thereby saving the time required for disassembly and assembly of the ladder and improving the efficiency of high-altitude operations.

[0046] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A foldable diagonal tie rod for a ladder, comprising a rod body, characterized in that: A rotating shaft is provided at both ends of the rod body, and the rod body includes a first supporting section and a second supporting section, the first supporting section and the second supporting section are rotatably connected, and a locking piece is provided at the connection between the first supporting section and the second supporting section, and the locking piece is used to limit the relative rotation of the first supporting section and the second supporting section.

2. A folding inclined tie rod for a ladder according to claim 1, characterized in that: A folding joint is provided at the connection between the first supporting section and the second supporting section, and the locking piece is used to lock the folding joint.

3. A folding inclined tie rod for a ladder according to claim 2, characterized in that: The folding joint includes a first connecting end and a second connecting end, wherein the first connecting end is fixedly connected to the first supporting segment, and the second connecting end is fixedly connected to the second supporting segment.

4. A folding inclined tie rod for a ladder according to claim 3, characterized in that: The opposite surfaces of the first connecting end and the second connecting end are provided with toothed discs, and when the locking member is locked, the first connecting end and the second connecting end are meshed.

5. A foldable diagonal tie rod for a ladder according to claim 3 or 4, characterized in that: The locking member comprises a latch and a lever, wherein the latch passes through the first connecting end and the second connecting end in the axial direction, and the lever is used to adjust the distance between the opposite surfaces of the first connecting end and the second connecting end.

6. A foldable diagonal tie rod for a ladder according to claim 5, characterized in that: An eccentric shaft is provided at one end of the lever, and the eccentric shaft is rotatably connected to the end of the latch.

7. A ladder, characterized in that: It comprises two relatively arranged single ladders, each of which is provided with a group of X-shaped inclined rods on both sides of the single ladder, and the two ends of the inclined rods are rotatably connected to the single ladders. The inclined rods are selected from the folding inclined rods for ladders described in any one of claims 1 to 6.

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