Climbing ladder

Abstract

The utility model relates to a climbing ladder. The climbing ladder comprises a base and a ladder stand body arranged on the base, the climbing ladder further comprises a rotating wheel installed at the top of the ladder stand body, a rotating shaft of the rotating wheel is connected with a handle, a pull rope is wound around the rotating wheel, and a hook is arranged at the lower end of the pull rope; the rotating wheel is driven by the handle to rotate anticlockwise or clockwise, so that the number of turns, wound on the rotating wheel, of the pull rope is increased or decreased, and the hook ascends or descends. When an operator forgets to carry a certain tool, the rotating wheel is driven by the handle to rotate anticlockwise or clockwise, so that the number of turns of the pull rope wound on the rotating wheel is increased or decreased, and the hook carries the tool to ascend or descend, so that the tool is hoisted, the operator does not need to repeatedly climb up and down a ladder to take the tool, and the waste of excessive time is avoided.

Description

Technical Field

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

[0002] The Chinese patent with the patent number CN215632696U discloses a ladder, comprising: a column, a pedal rod, and an arc-shaped positioning card 1, wherein there are two columns, and the two columns are arranged in parallel at a certain distance; there are multiple pedal rods, and the multiple pedal rods are arranged between the two columns at a certain distance; the arc-shaped positioning card 1 is arranged on the topmost pedal rod, and the two ends of the arc-shaped positioning card 1 are hingedly provided with an arc-shaped positioning card 2. The utility model provides a ladder, wherein an arc-shaped positioning card 1 is arranged on the topmost pedal rod, which can be conveniently clamped on a tree with a smaller diameter so as to stabilize the ladder; the two ends of the arc-shaped positioning card 1 are hingedly provided with an arc-shaped positioning card 2 with a smaller bending degree so as to clamp on a tree with a larger diameter, so that the top of the ladder can be fixed on trees of different sizes, effectively expanding the use range of the ladder.

[0003] However, in the process of conceiving and implementing the above application, the inventors found that in actual use of the above disclosed solution, when the operator forgets to bring a certain tool, he needs to climb up and down the ladder repeatedly to get the tool, resulting in a waste of too much time. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a climbing ladder.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A climbing ladder comprises a base and a ladder body arranged on the base, and the climbing ladder further comprises:

[0007] A rotating wheel is installed on the top of the ladder body, the rotating shaft of the rotating wheel is connected to a handle, a pull rope is coiled on the rotating wheel, and a hook is provided at the lower end of the pull rope;

[0008] The handle drives the rotating wheel to rotate counterclockwise or clockwise, so that the number of turns of the pull rope wound around the rotating wheel increases or decreases, so that the hook rises or falls.

[0009] Optionally, the bottom of the ladder body is fixed to the upper end surface of the base by a locking bolt.

[0010] Optionally, a slide groove is provided on the upper end surface of the base, a screw rod is installed above the slide groove, a slider is threadedly connected to the screw rod, and the slider is located in the slide groove and is slidably connected to the slide groove;

[0011] The slider is caused to perform reciprocating linear motion in the slide groove by rotating the screw rod.

[0012] Optionally, L-shaped transmission plates are fixedly connected to both sides of the sliding block, and a traction plate is provided between the L-shaped transmission plate and the ladder body.

[0013] Optionally, the upper end of the traction plate is fixed to both sides of the ladder body through locking bolts, and the lower end is fixed to the end of the L-shaped transmission plate through locking bolts.

[0014] Optionally, a knob is provided at one end of the screw rod away from the ladder body.

[0015] Optionally, handrails are provided on both sides of the ladder body.

[0016] The beneficial effects of the present application are as follows: when the operator forgets to bring a certain tool, the present application drives the rotating wheel to rotate counterclockwise or clockwise through the handle, so that the number of circles of the pull rope coiled around the rotating wheel increases or decreases, so that the hook carrying the tool rises or falls, thereby realizing the lifting of the tool, without the need to repeatedly climb up and down the ladder to take the tool, avoiding wasting too much time.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0019] Figure 1 is a first structural schematic diagram of a climbing ladder shown in an embodiment of the present application;

[0020] Figure 2 It is a structural schematic diagram of a hook shown in an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the structure of a rotating wheel shown in an embodiment of the present application;

[0022] Figure 4 is a second structural schematic diagram of the climbing ladder shown in the embodiment of the present application;

[0023] Figure 5 This is a third structural schematic diagram of the climbing ladder shown in the embodiment of the present application.

[0024] Figure numerals: 1 base, 2 locking bolt, 3 ladder body, 4 rotating wheel, 5 handle, 6 pull rope, 8 hook, 9 handrail, 10 screw rod, 11 knob, 12 slider, 13 L-type transmission plate, 14 traction plate. DETAILED DESCRIPTION

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0030] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0031] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0032] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0033] Embodiment 1:

[0034] See also Figure 1 , Figure 2 and Figure 3 A climbing ladder comprises a base 1 and a ladder body 3 arranged on the base 1, and the climbing ladder further comprises:

[0035] A rotating wheel 4 is installed on the top of the ladder body 3, the rotating shaft of the rotating wheel 4 is connected to a handle 5, a pull rope 7 is coiled on the rotating wheel 4, and a hook 8 is provided at the lower end of the pull rope 7;

[0036] The handle 5 drives the rotating wheel 4 to rotate counterclockwise or clockwise, so that the number of turns of the pull rope 7 wound around the rotating wheel 4 increases or decreases, so that the hook 8 rises or falls.

[0037] Specifically, the lower end of the ladder body 3 is fixed to the upper end surface of one end of the base 1, and the ladder body 3 is tilted to facilitate the operator to climb up and down the ladder; the rotating wheel 4 is installed on one side of the top of the ladder body 3, one end of the rotating shaft of the rotating wheel 4 is fixedly connected to one end of the handle 5, the upper end of the pull rope 7 is coiled on the rotating wheel 4, and the lower end of the pull rope 7 is fixedly connected to the upper end of the hook 8, and the lower end of the hook 8 can hang tools;

[0038] When in use, the handle 5 is manually turned clockwise, and the handle 5 drives the rotating wheel 4 to rotate clockwise synchronously, so that the number of turns of the pull rope 7 wound on the rotating wheel 4 is reduced, thereby causing the hook 8 to descend. When the hook 8 descends to the lowest end, the ground staff can put the tool in the bucket and then hang the bucket on the hook 8. Subsequently, the operator at the top of the ladder body 3 turns the handle 5 counterclockwise in the opposite direction, and the handle 5 drives the rotating wheel 4 to rotate counterclockwise synchronously, so that the number of turns of the pull rope 7 wound on the rotating wheel 4 is increased, thereby causing the hook 8 to rise. When the bucket rises to a suitable position, the tool in the bucket is taken out. If other tools are needed, the above operation can be repeated to take the workpiece;

[0039] In this embodiment, when the operator forgets to carry a certain tool, the handle 5 drives the rotating wheel 4 to rotate counterclockwise or clockwise, so that the number of turns of the pull rope 7 wound around the rotating wheel 4 increases or decreases, so that the hook 8 carries the tool up or down, thereby realizing the lifting of the tool, without having to repeatedly climb up and down the ladder to take the tool, avoiding wasting too much time.

[0040] Embodiment 2:

[0041] See also Figure 4 and Figure 5 Based on the first embodiment, further and optionally, the bottom of the ladder body 3 is fixed to the upper end surface of the base 1 by a locking bolt 2.

[0042] Specifically, the ladder body 3 is composed of two parallel vertical beams, a plurality of ladder rods are arranged between the two vertical beams, a screw hole for allowing the locking bolt 2 to pass through is opened at the bottom of the vertical beam, a mounting plate for mounting the locking bolt 2 extends upward from the upper end surface of the base 1, a through hole corresponding to the screw hole is opened on the mounting plate, and the locking bolt 2 is inserted into the through hole and the screw hole;

[0043] When the locking bolt 2 is in a loosened state, the ladder body 3 can be rotated to change the angle between the ladder body 3 and the base 1, thereby changing the height of the ladder body 3;

[0044] When the locking bolt 2 is in a tightened state, the bottom of the ladder body 3 is fixed to the upper end surface of the base 1 , so that the ladder body 3 cannot rotate, thereby fixing the height of the ladder body 3 .

[0045] Further and optionally, a slide groove is provided on the upper end surface of the base 1, a screw rod 10 is installed above the slide groove, a slider 12 is threadedly connected to the screw rod 10, and the slider 12 is located in the slide groove and is slidably connected to the slide groove;

[0046] The lead screw 10 is rotated to make the slider 12 perform reciprocating linear motion in the slide groove.

[0047] Specifically, a threaded hole matching the external thread of the screw rod 10 is opened in the middle of the slider 12, and the slider 12 is threadedly connected to the screw rod 10 through the threaded hole. The slider 12 is located in the slide groove, and the lower end surface and both side end surfaces of the slider 12 are slidably connected to the slide groove. A limit block is provided at one end of the slide groove close to the ladder body 3;

[0048] Rotate the screw rod 10 counterclockwise, and the rotational motion of the screw rod 10 is converted into the linear motion of the slider 12, so that the slider 12 moves linearly to the right in the slide groove; rotate the screw rod 10 clockwise, and the rotational motion of the screw rod 10 is converted into the linear motion of the slider 12, so that the slider 12 moves linearly to the left in the slide groove. When the slider 12 moves linearly to the left to a certain displacement, the limit block can limit it; the reciprocating linear motion of the slider 12 is realized by rotating the screw rod 10 clockwise or counterclockwise.

[0049] Further and optionally, an L-shaped transmission plate 13 is fixedly connected to both sides of the sliding block 12 , and a traction plate 14 is provided between the L-shaped transmission plate 13 and the ladder body 3 .

[0050] Further and optionally, the upper end of the traction plate 14 is fixed to both sides of the ladder body 3 through locking bolts 2 , and the lower end is fixed to the end of the L-shaped transmission plate 13 through locking bolts 2 .

[0051] Specifically, when the height of the ladder body 3 needs to be lowered, all locking bolts 2 are loosened so that the ladder body 3 and the traction plate 14 can rotate, and the screw rod 10 is rotated counterclockwise to make the slider 12 move linearly to the right in the slide groove, and the slider 12 drives the L-shaped transmission plate 13 to move linearly to the right synchronously, and the L-shaped transmission plate 13 drives the lower end of the traction plate 14 to move to the right, and the upper end of the traction plate 14 drives the ladder body 3 to rotate downward, so as to reduce the angle between the base 1 and the ladder body 3, thereby lowering the height of the ladder body 3. When the ladder body 3 is lowered to the target height, all locking bolts 2 are tightened to fix the height of the ladder body 3 to ensure the safety of the operator;

[0052] When the height of the ladder body 3 needs to be increased, all locking bolts 2 are loosened so that the ladder body 3 and the traction plate 14 can rotate, and the screw rod 10 is rotated clockwise to make the slider 12 move linearly to the left in the slide groove, and the slider 12 drives the L-shaped transmission plate 13 to move linearly to the left synchronously, and the L-shaped transmission plate 13 drives the lower end of the traction plate 14 to move to the left, and the upper end of the traction plate 14 pushes the ladder body 3 to rotate upward, thereby increasing the angle between the base 1 and the ladder body 3, thereby increasing the height of the ladder body 3. When the ladder body 3 is increased to the target height, all locking bolts 2 are tightened to fix the height of the ladder body 3 to ensure the safety of the operator;

[0053] In this embodiment, the angle between the ladder body 3 and the base 1 is changed by the cooperation between the screw rod 10, the slider 12, the L-shaped transmission plate 13 and the traction plate 14, so as to reduce or increase the height of the ladder body 3, so that the ladder is suitable for different working occasions;

[0054] At the same time, when the slider 12 slides to the far right, the angle between the ladder body 3 and the base 1 is the smallest. At this time, the purpose of storing the ladder body 3 can be achieved. If the operator feels that the weight of the ladder is too heavy, the base 1, the ladder body 3 and the traction plate 14 can be disassembled by loosening the locking bolts. At this time, the operator can carry these parts in batches, thereby achieving the purpose of facilitating the carrying of the ladder.

[0055] Further and optionally, a knob 11 is provided at one end of the screw rod 10 away from the ladder body 3 .

[0056] Specifically, the knob 11 is provided to facilitate the operator to rotate the screw rod 10 , and a force is applied to the knob 11 to drive the screw rod 10 to rotate.

[0057] Further and optionally, handrails 9 are provided on both sides of the ladder body 3 .

[0058] Specifically, both ends of the handrail 9 are fixedly connected to the vertical beams of the ladder body 3. By providing the handrail 9, the operator can climb up and down the ladder holding the handrail 9, thereby improving safety.

[0059] In summary, when the operator forgets to carry a certain tool, the handle 5 drives the rotating wheel 4 to rotate counterclockwise or clockwise, so that the number of turns of the pull rope 7 wound around the rotating wheel 4 increases or decreases, so that the hook 8 carries the tool up or down, thereby realizing the lifting of the tool, without having to repeatedly climb up and down the ladder to take the tool, avoiding wasting too much time;

[0060] The present application changes the angle between the ladder body 3 and the base 1 by the cooperation between the screw rod 10, the slider 12, the L-shaped transmission plate 13 and the traction plate 14, thereby reducing or increasing the height of the ladder body 3, so that the climbing ladder is suitable for different working occasions;

[0061] When the slider 12 of the present application slides to the rightmost position, the angle between the ladder body 3 and the base 1 is the smallest, and the purpose of storing the ladder body 3 can be achieved at this time. If the operator feels that the weight of the climbing ladder is too heavy, the base 1, the ladder body 3 and the traction plate 14 can be disassembled by loosening the locking bolts. At this time, the operator can carry these parts in batches, so as to achieve the purpose of facilitating the carrying of the climbing ladder;

[0062] The present application provides a handrail 9 so that the operator can climb up and down the ladder holding the handrail 9, thereby improving safety.

[0063] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A climbing ladder, comprising a base (1) and a ladder body (3) arranged on the base (1), characterized in that: The climbing ladder also includes: A rotating wheel (4) is installed on the top of the ladder body (3), the rotating shaft of the rotating wheel (4) is connected to a handle (5), a pull rope (7) is coiled on the rotating wheel (4), and a hook (8) is provided at the lower end of the pull rope (7); The handle (5) drives the rotating wheel (4) to rotate counterclockwise or clockwise, so that the number of turns of the pull rope (7) wound around the rotating wheel (4) increases or decreases, so that the hook (8) rises or falls.

2. The climbing ladder according to claim 1, characterized in that: The bottom of the ladder body (3) is fixed to the upper end surface of the base (1) via a locking bolt (2).

3. The climbing ladder according to claim 1, characterized in that: The upper end surface of the base (1) is provided with a slide groove, a screw rod (10) is installed above the slide groove, a slider (12) is threadedly connected to the screw rod (10), and the slider (12) is located in the slide groove and is slidably connected to the slide groove; The lead screw (10) is rotated to make the slider (12) perform reciprocating linear motion in the slide groove.

4. The climbing ladder according to claim 3, characterized in that: An L-shaped transmission plate (13) is fixedly connected to both sides of the sliding block (12), and a traction plate (14) is provided between the L-shaped transmission plate (13) and the ladder body (3).

5. The climbing ladder according to claim 4, characterized in that: The upper end of the traction plate (14) is fixed to both sides of the ladder body (3) through locking bolts (2), and the lower end is fixed to the end of the L-shaped transmission plate (13) through locking bolts (2).

6. The climbing ladder according to claim 3, characterized in that: A knob (11) is provided at one end of the screw rod (10) away from the ladder body (3).

7. The climbing ladder according to claim 1, characterized in that: Handrails (9) are provided on both sides of the ladder body (3).

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