Folding portable excavator ladder climbing device

By designing a foldable and portable excavator ladder device, the problem of large excavator ladder devices being inconvenient to fold and move has been solved, enhancing the portability and safety of the device. It also provides a side auxiliary protection structure, improving the convenience and safety of use.

CN224017147UActive Publication Date: 2026-03-20YICHANG SANY MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing ladder devices on large excavators are not easy to fold and move, and lack side auxiliary protection structures. When in use, they can only be supported by the beams on both sides of the ladder, which is inconvenient.

Method used

A foldable portable excavator ladder climbing device was designed, which includes a front support rod and an auxiliary ladder climbing guardrail structure. Through the cooperation of components such as handrail, receiving groove, connector, rectangular limit rod, round rod, and spring, the handrail can be folded and unfolded, which enhances the portability and safety of the device.

Benefits of technology

The system enables convenient folding and movement of the excavator ladder device, enhancing operational practicality, and improves the stability and safety of the platform through multiple fixing rods and rectangular plates.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding portable excavator ladder climbing device, and relates to the technical field of engineering machinery. The folding portable excavator ladder climbing device comprises a front supporting rod and an auxiliary ladder climbing guardrail structure, the auxiliary ladder climbing guardrail structure comprises a handrail, a containing groove, a connecting piece, a rectangular limiting rod, a round rod, a spring, an upper round groove, a lower round groove and a rectangular limiting groove, the handrail is slidably connected to the surface of the front supporting rod, and the containing groove is formed in the front supporting rod; the connecting piece is fixedly connected to the surface of the handrail and slidably connected to the interior of the front supporting rod, the rectangular limiting rod is fixedly connected to the bottom of the connecting piece, the handrail can be folded through the auxiliary ladder climbing guardrail structure, so that the whole device is convenient to carry and move, and the problems that most of existing excavator ladder climbing devices are inconvenient to fold and inconvenient to move are solved. The problems that an existing ladder is inconvenient to fold and move, generally, a side edge auxiliary protection structure is not provided, only beams on the two sides of the ladder can be lifted when the ladder is lifted, and use is inconvenient are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to engineering machinery technical field, especially relates to folding portable excavator ladder device. BACKGROUND

[0002] Large excavator refers to the excavator above 40 tons in total weight, is usually used in mining and large mining field and so on, these excavators have powerful engine and hydraulic technology, can satisfy high strength operation requirement, large excavator is usually divided into two kinds of types of positive shovel and backhoe, backhoe excavator can dig faster in the mine, increase work efficiency, is applicable to various heavy engineering and mining operation, can significantly improve work efficiency, reduce labor cost.

[0003] The large excavator is high in rotary table height, if want to get on the car, must help the folding boarding ladder, the ladder must be retracted during work, and must be mechanical power to reduce the labor intensity, the form that has appeared now is not foldable, is not conducive to retraction and movement, and generally does not have side auxiliary protection structure, when climbing, only can hold the beam of both sides of the ladder, is more inconvenient to use, therefore, folding portable excavator ladder device is required. UTILITARIAN CONTENT

[0004] The utility model discloses a folding portable excavator ladder device, which can solve the problem that most existing excavator ladder devices are not convenient to fold, are not conducive to retraction and movement, and generally do not have side auxiliary protection structure, and only the beam of both sides of the ladder can be held when climbing.

[0005] To achieve the above object, the utility model provides the following technical scheme: folding portable excavator ladder device, including front support rod and auxiliary ladder guardrail structure, auxiliary ladder guardrail structure includes handrail, containing groove, connecting piece, rectangular limiting rod, round rod, spring, upper circular groove, lower circular groove and rectangular limiting groove, the surface of front support rod is connected in handrail slidingly, the inside of front support rod is opened in containing groove, the surface of handrail is fixedly connected with connecting piece, the inside of front support rod is connected with connecting piece slidingly, the bottom of connecting piece is fixedly connected with rectangular limiting rod, the top of connecting piece is fixedly connected with round rod, the top of round rod is fixedly connected with spring, the inside of front support rod is opened with upper circular groove, upper circular groove is located above containing groove and is communicated with containing groove, the inside of front support rod is opened with lower circular groove, lower circular groove is located at the bottom of containing groove and is communicated with containing groove, the inside of front support rod is opened with rectangular limiting groove, rectangular limiting groove is located at the bottom of lower circular groove and is communicated with lower circular groove.

[0006] Preferably, the connecting piece is matched with the accommodating groove, the connecting piece is slidingly connected in the accommodating groove, the rectangular limiting rod is matched with the rectangular limiting groove, the rectangular limiting rod is slidingly connected in the rectangular limiting groove, the round rod is matched with the upper circular groove, the round rod is slidingly connected in the upper circular groove, the spring is located in the upper circular groove, and the top of the spring is fixedly connected with the front supporting rod.

[0007] Preferably, the front supporting rod is rotatably connected with a plurality of second rotating shafts, and the surface of each second rotating shaft is fixedly connected with a pedal.

[0008] Preferably, the surface of the pedal is rotatably connected with a plurality of third rotating shafts, and the surface of the third rotating shaft is fixedly sleeved with a connecting rod.

[0009] Preferably, the surface of the front supporting rod is rotatably connected with a first rotating shaft, the outer surface of the first rotating shaft is fixedly sleeved with a rear supporting rod, the surface of the rear supporting rod is rotatably connected with a reinforcing rod, and the reinforcing rod is rotatably connected with the connecting rod.

[0010] Preferably, the surface of the rear supporting rod is fixedly connected with a plurality of fixed beams, and the rear supporting rod is rotatably connected with the pedal.

[0011] Preferably, the bottom of the pedal is fixedly connected with a plurality of rectangular plates, the bottom of the rear supporting rod is fixedly connected with a plurality of fixed rods, and the fixed rods are in contact with the rectangular plates.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The folding portable excavator ladder device is convenient to carry and move as a whole, convenient to operate and stronger in practicality, solves the problems that most of the existing excavator ladder devices are inconvenient to fold, are not conducive to folding and moving, and generally do not have a side auxiliary protection structure, and only the beams on both sides of the ladder can be held when climbing the ladder, and use is more inconvenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further illustrated in connection with the drawings and embodiments as follows:

[0015] Figure 1 It is a schematic view of the body of the utility model;

[0016] Figure 2 It is a schematic view of the handrail of the utility model;

[0017] Figure 3 It is a schematic view of the front supporting rod of the utility model;

[0018] Figure 4 It is a schematic view of the accommodating groove of the utility model;

[0019] Figure 5 The drawing is a schematic view of the pedal of the utility model.

[0020] The reference signs: 1, front support rod; 2, rear support rod; 3, first rotating shaft; 4, fixed beam; 5, second rotating shaft; 6, pedal; 7, third rotating shaft; 8, connecting rod; 9, reinforcing rod; 10, fixed rod; 11, rectangular plate; 12, handrail; 13, accommodating groove; 14, connecting piece; 15, rectangular limiting rod; 16, round rod; 17, spring; 18, upper circular groove; 19, lower circular groove; 20, rectangular limiting groove. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the upper, lower, front, rear, left, right and the like indicated by the drawings is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as the limitation of the utility model.

[0023] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, above, below and the like are understood as including the number. If the first, second is described, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Please refer to Figures 1-5The utility model provides technical scheme: folding portable excavator ladder device, including front support pole 1 and auxiliary ladder guardrail structure, auxiliary ladder guardrail structure includes handrail 12, containing groove 13, connecting piece 14, rectangular limit rod 15, round rod 16, spring 17, upper circular groove 18, lower circular groove 19 and rectangular limit groove 20, handrail 12 slidingly connected in the surface of front support pole 1, containing groove 13 is set up in the inside of front support pole 1, connecting piece 14 fixedly connected in the surface of handrail 12, connecting piece 14 slidingly connected in the inside of front support pole 1, rectangular limit rod 15 fixedly connected in the bottom of connecting piece 14, round rod 16 fixedly connected in the top of connecting piece 14, spring 17 fixedly connected in the top of round rod 16, upper circular groove 18 is set up in the inside of front support pole 1, and upper circular groove 18 is located above containing groove 13 and is communicated with containing groove 13, lower circular groove 19 is set up in the inside of front support pole 1, and lower circular groove 19 is located at the bottom of containing groove 13 and is communicated with containing groove 13, rectangular limit groove 20 is set up in the inside of front support pole 1, and rectangular limit groove 20 is located at the bottom of lower circular groove 19 and is communicated with lower circular groove 19.

[0026] Further, connecting piece 14 is adapted to containing groove 13, connecting piece 14 is slidingly connected in the inside of containing groove 13, rectangular limit rod 15 is adapted to rectangular limit groove 20, rectangular limit rod 15 is slidingly connected in the inside of rectangular limit groove 20, round rod 16 is adapted to upper circular groove 18, round rod 16 is slidingly connected in the inside of upper circular groove 18, spring 17 is located in the inside of upper circular groove 18, and the top of spring 17 is fixedly connected with front support pole 1.

[0027] Further, the inside of front support pole 1 is rotationally connected with a plurality of second rotation shafts 5, the surface of each second rotation shaft 5 is fixedly connected with a pedal 6, the surface of the pedal 6 is rotationally connected with a plurality of third rotation shafts 7, the surface of the third rotation shaft 7 is fixedly sleeved with a connecting rod 8, the surface of the front support pole 1 is rotationally connected with a first rotation shaft 3, the outer surface of the first rotation shaft 3 is fixedly sleeved with a rear support pole 2, the surface of the rear support pole 2 is rotationally connected with a reinforcing rod 9, the reinforcing rod 9 is rotationally connected with the connecting rod 8, the surface of the rear support pole 2 is fixedly connected with a plurality of fixed beams 4, the rear support pole 2 is rotationally connected with the pedal 6, the bottom of the pedal 6 is fixedly connected with a plurality of rectangular plates 11, the bottom of the rear support pole 2 is fixedly connected with a plurality of fixed rods 10, and the fixed rod 10 is in contact with the rectangular plate 11.

[0028] Further, when the device is in use, the front support rod 1 and the rear support rod 2 are separated, the pedal 6 is driven to move to a horizontal state through the action of the connecting rod 8 and the reinforcing rod 9, then the handrail 12 is pushed upward to drive the connecting piece 14 to move, the rectangular limiting rod 15 moves upward and is released from the limiting of the rectangular limiting groove 20, the handrail 12 is turned by ninety degrees, the handrail 12 is loosened, the rectangular limiting rod 15 moves downward and is limited in the rectangular limiting groove 20 again through the reset action of the spring 17, the handrail 12 can be in the working state, then the handrail 12 can be used to support to climb the ladder, and the same operation is used to reverse the handrail 12 to be close to the pedal 6 to fold.

[0029] Further, the folding of the handrail 12 can be realized through the auxiliary ladder guard structure, so that the overall carrying and moving of the device are facilitated, the operation is convenient and practical, the problem that most of the existing excavator ladder climbing devices are not convenient to fold, are not conducive to folding and moving, and generally do not have a side auxiliary protection structure, and the user can only hold the beams on both sides of the ladder when climbing the ladder is solved, the pedal 6 has stronger stability through the arrangement of the plurality of fixing rods 10 and the rectangular plates 11, the overall strength of the pedal 6 is increased, and the safety factor of the device is improved.

[0030] Structure description: the front support rod 1 is a support structure for mounting various components of the device;

[0031] The rear support rod 2 is rotationally connected to the surface of the front support rod 1 and is used for supporting the device;

[0032] The fixed beam 4 is fixedly connected to the surface of the rear support rod 2 and is used for strengthening the stability of the rear support rod 2;

[0033] The pedal 6 is rotationally connected to the surface of the front support rod 1 and is a stepping structure for the operator to climb the ladder, and an anti-skid rib is arranged above the pedal 6;

[0034] The connecting rod 8 is rotationally connected to the surface of the plurality of pedals 6 and is used for assisting the movement of the pedal 6 and strengthening the stability;

[0035] The reinforcing rod 9 is rotationally connected between the rear support rod 2 and the pedal 6 and is used for strengthening the stability of the device during unfolding;

[0036] The fixing rod 10 is fixedly connected to the bottom of the pedal 6, there are a plurality of fixing rods 10, and the fixing rods 10 are used for strengthening the strength of the pedal 6;

[0037] The rectangular plate 11 is fixedly connected to the bottom of the pedal 6, there are a plurality of rectangular plates 11, the rectangular plates 11 are in contact with the fixing rods 10, and the rectangular plates 11 are used for strengthening the stability of the pedal 6;

[0038] The handrail 12 is slidingly connected to the surface of the front support rod 1 and is used for assisting the operator to climb the ladder;

[0039] Accommodation groove 13: Opened in the inside of the front support rod 1, used for accommodating connecting piece 14 and limiting the rotation of connecting piece 14;

[0040] Connecting piece 14: Fixed on the surface of the armrest 12, used for the rotation of the armrest 12 and the fixation of each component;

[0041] Rectangular limiting rod 15: Fixed on the bottom of connecting piece 14, limiting the rotation of connecting piece 14;

[0042] Round rod 16: Fixed on the top of connecting piece 14, used for the limitation of armrest 12;

[0043] Spring 17: Fixed on the top of round rod 16, fixedly connected with the inside of the front support rod 1, used for the reset of rectangular limiting rod 15;

[0044] Upper circular groove 18: Opened in the inside of the front support rod 1, matched with round rod 16, used for limiting round rod 16;

[0045] Lower circular groove 19: Opened in the inside of the front support rod 1, enabling the rotation of rectangular limiting rod 15;

[0046] Rectangular limiting groove 20: Opened in the inside of the front support rod 1, matched with rectangular limiting rod 15, limiting the rotation of rectangular limiting rod 15.

[0047] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge range possessed by the ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. A foldable portable excavator ladder device, characterized in that, include: Front support rod (1); The auxiliary ladder climbing guardrail structure includes a handrail (12), a receiving groove (13), a connector (14), a rectangular limiting rod (15), a round rod (16), a spring (17), an upper circular groove (18), a lower circular groove (19), and a rectangular limiting groove (20). The handrail (12) is slidably connected to the surface of the front support rod (1). The receiving groove (13) is opened inside the front support rod (1). The connector (14) is fixedly connected to the surface of the handrail (12) and slidably connected to the inside of the front support rod (1). The rectangular limiting rod (15) is fixedly connected to the bottom of the connector (14). (16) is fixedly connected to the top of the connector (14), the spring (17) is fixedly connected to the top of the round rod (16), the upper circular groove (18) is opened inside the front support rod (1), the upper circular groove (18) is located above the receiving groove (13) and is connected to the receiving groove (13), the lower circular groove (19) is opened inside the front support rod (1), the lower circular groove (19) is located at the bottom of the receiving groove (13) and is connected to the receiving groove (13), the rectangular limiting groove (20) is opened inside the front support rod (1), the rectangular limiting groove (20) is located at the bottom of the lower circular groove (19) and is connected to the lower circular groove (19).

2. The folding portable excavator ladder device according to claim 1, characterized in that: The connector (14) is adapted to the receiving groove (13) and is slidably connected inside the receiving groove (13). The rectangular limiting rod (15) is adapted to the rectangular limiting groove (20) and is slidably connected inside the rectangular limiting groove (20). The round rod (16) is adapted to the upper circular groove (18) and is slidably connected inside the upper circular groove (18). The spring (17) is located inside the upper circular groove (18) and the top of the spring (17) is fixedly connected to the front support rod (1).

3. The folding portable excavator ladder device according to claim 1, characterized in that: The front support rod (1) is internally rotatably connected to a plurality of second rotating shafts (5), and each second rotating shaft (5) is fixedly connected to a pedal (6).

4. The folding portable excavator ladder device according to claim 3, characterized in that: The surface of the pedal (6) is rotatably connected to a plurality of third rotating shafts (7), and the surface of the third rotating shafts (7) is fixedly sleeved with connecting rods (8).

5. The folding portable excavator ladder device according to claim 1, characterized in that: The surface of the front support rod (1) is rotatably connected to a first rotating shaft (3), and the outer surface of the first rotating shaft (3) is fixedly sleeved with a rear support rod (2). The surface of the rear support rod (2) is rotatably connected to a reinforcing rod (9), and the reinforcing rod (9) is rotatably connected to the connecting rod (8).

6. The folding portable excavator ladder device according to claim 5, characterized in that: The surface of the rear support rod (2) is fixedly connected to multiple fixed beams (4), and the rear support rod (2) is rotatably connected to the pedal (6).

7. The folding portable excavator ladder device according to claim 3, characterized in that: The bottom of the pedal (6) is fixedly connected to multiple rectangular plates (11), and the bottom of the rear support rod (2) is fixedly connected to multiple fixing rods (10), with the fixing rods (10) in contact with the rectangular plates (11).