Folding pedaling ladder structure and loading machine

Abstract

The utility model provides a folding pedaling ladder structure and a loading machine. The folding pedaling ladder structure comprises a rack assembly, a supporting assembly, a connecting assembly and a folding ladder assembly. The rack assembly is fixed on the whole vehicle; the connecting assembly comprises a connecting plate and a connecting groove plate, the two ends of the connecting plate are hinged to the rack assembly and the folding ladder assembly respectively, one end of the connecting groove plate is hinged to the rack assembly, and the other end of the connecting groove plate is connected with the folding ladder assembly in a rotating and sliding mode. When the folding ladder assembly is folded upwards, the bottom of the folding ladder assembly rotates and slides outwards relative to the connecting trough plate, so that the folding ladder assembly is in an inclined state, and when the folding ladder assembly is folded upwards, the bottom of the folding ladder assembly rotates and slides inwards relative to the connecting trough plate, so that the folding ladder assembly is in a folded state; the supporting assembly is fixed to the rack assembly and used for providing limiting support for the connecting assembly, so that the folding ladder assembly is kept stable when unfolded.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a folding treadmill ladder structure and a loader. Background Technology

[0002] In existing technologies, some construction machinery vehicles, due to their relatively high cab and platform positions, typically require a ladder structure to facilitate driver access. However, traditional ladders are vertically arranged, a design with certain drawbacks. Firstly, a vertical ladder requires the driver to climb onto a foot pedal to enter the cab, undoubtedly increasing operational inconvenience. Secondly, the fixed structure of traditional ladders means that during loader operation, the ground may collide with the bottom of the ladder, causing deformation and affecting its service life and safety. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, this utility model provides a folding trolley ladder structure and a loader to solve the problems of inconvenience in getting on and off vehicles and easy collision with the ground of traditional trolley ladders.

[0004] To achieve the above objectives, the first aspect of this utility model provides a folding bicycle ladder structure, including a frame assembly, a support assembly, a connecting assembly, and a folding ladder assembly;

[0005] The frame assembly is fixed to the vehicle.

[0006] The connecting assembly includes a connecting plate and a connecting groove plate. The two ends of the connecting plate are respectively hinged to the frame assembly and the folding ladder assembly. One end of the connecting groove plate is hinged to the frame assembly, and the other end is rotatably and slidably connected to the folding ladder assembly. When the folding ladder assembly is unfolded, the bottom of the folding ladder assembly rotates and slides outward relative to the connecting groove plate, so that the folding ladder assembly is in an inclined state. When the folding ladder assembly is folded upward, the bottom of the folding ladder assembly rotates and slides inward relative to the connecting groove plate, so that the folding ladder assembly is in a folded state.

[0007] The support component is fixed to the frame assembly and provides limiting support for the connecting component, so that the folding ladder assembly remains stable when unfolded.

[0008] Furthermore, the connecting groove plate has a slot extending along its axial direction in the middle, and the folding ladder assembly has a downward rotating pin that rotates and slides with the slot.

[0009] Further, the support assembly comprises a limiting plate fixed on the frame assembly and extending to the bottom of the connecting plate, for limiting the downward rotation of the connecting plate when the folding ladder assembly is unfolded.

[0010] And a fixed support frame fixed on the frame assembly and extending to the bottom of the connecting slot plate, for limiting the downward rotation of the connecting slot plate when the folding ladder assembly is unfolded.

[0011] Further, the support assembly further comprises a handrail support fixed on the frame assembly and extending to both sides of the folding ladder assembly, and a pulling rod for suspending the folding ladder assembly in the folded state is arranged on the handrail support.

[0012] Further, the folding ladder assembly comprises two parallel ladder frames, and a plurality of steps are arranged between the two parallel ladder frames, each ladder frame comprises a support rod, and the support rod is provided with a blocking rod, an upper rotating pin hinged to the connecting plate and a lower rotating pin in sliding fit with the slot hole.

[0013] Further, the folding ladder assembly further comprises a connecting rod, one end of each step is hinged to the support rod, and the other end is hinged to the connecting rod, and the inner side of the support rod is provided with a limiting block for limiting the step.

[0014] Further, the folding ladder assembly further comprises a reset spring connected between the step and the support rod.

[0015] Further, the frame assembly comprises a vehicle frame support body fixed on the whole vehicle, and the vehicle frame support body is provided with a top fixing block hinged to the connecting plate at the top and a bottom fixing block hinged to the connecting slot plate at the bottom.

[0016] The second aspect of the utility model provides a loading machine comprising the folding ladder structure of any one of the above.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、 the folding ladder structure of the utility model adopts a simple and easy-to-control folding mode to realize upward folding and downward unfolding of the ladder, and can better adapt to the narrow space in front of the loading machine frame and the gantry; when the folding ladder assembly is unfolded downward, the bottom of the folding ladder assembly rotates and slides outward relative to the connecting slot plate, so that the folding ladder assembly is in an inclined state, and the limiting of the fixed support frame and the limiting plate makes the folding ladder assembly stable in the unfolded state; the folding ladder structure can provide more convenient and comfortable experience for the driver to get on and off the vehicle, and improve the work efficiency and safety.

[0019] 2, the folding ladder assembly of the folding step ladder structure is folded upward, the bottom of the folding ladder assembly is rotated and slid inward relative to the connecting groove plate, so that the folding ladder assembly is in a folded state; and the support rod is fixed on the pull rod of the handrail support through the stop rod. Not only saves space, but also ensures that the bottom of the step ladder does not collide with the ground during the working process of the loader, effectively protects the step ladder structure, improves the service life and driving safety of the step ladder. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the structure schematic view of the folding step ladder structure of the utility model in the unfolded state;

[0021] Figure 2 is the front view of the folding step ladder structure of the utility model in the unfolded state;

[0022] Figure 3 is the structure schematic view of the folding step ladder structure of the utility model in the folded state;

[0023] Figure 4 is the front view of the folding step ladder structure of the utility model in the folded state;

[0024] Figure 5 is the structure schematic view of the folding ladder assembly of the utility model in the unfolded state;

[0025] Figure 6 is the structure schematic view of the folding ladder assembly of the utility model in the folded state;

[0026] In the drawing:

[0027] 1, rack assembly;101, frame support body;102, top fixed block;103, bottom fixed block;2, support assembly;201, handrail support;202, fixed support frame;203, limiting plate;204, pull rod;3, connecting assembly;301, connecting plate;302, connecting groove plate;4, folding ladder assembly;401, ladder frame;402, pedal;403, connecting rod;404, return spring;405, support rod;406, limiting block;407, stop rod;408, upper rotating pin;409, lower rotating pin. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] The following detailed description of the application. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect thus defined can be combined with any other aspect or aspects, unless explicitly indicated otherwise. In particular, any feature that is considered to be preferred or advantageous can be combined with any other feature or features that are considered to be preferred or advantageous.

[0030] In the description of the present application, it should be understood that the terms "inner", "outer", "upper", "lower", "left" and "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0031] Reference Figures 1 to 4 As shown in the drawings, the utility model discloses a folding step ladder structure, including frame assembly 1, support assembly 2, connecting assembly 3 and folding ladder assembly 4.

[0032] Frame assembly 1 is fixed on the whole vehicle;

[0033] Connecting assembly 3 includes connecting plate 301 and connecting groove plate 302, and the both ends of connecting plate 301 are hinged with frame assembly 1 and folding ladder assembly 4 respectively, one end of connecting groove plate 302 is hinged with frame assembly 1, and the other end is rotatably and slidably connected with folding ladder assembly 4, when folding ladder assembly 4 is unfolded, the bottom of folding ladder assembly 4 rotates and slides outward relative to connecting groove plate 302, so that folding ladder assembly 4 is in an inclined state, when folding ladder assembly 4 is folded upward, the bottom of folding ladder assembly 4 rotates and slides inward relative to connecting groove plate 302, so that folding ladder assembly is in a folded state;

[0034] Support assembly 2 is fixed on frame assembly 1, and is used for providing limiting support for connecting assembly 3, so that folding ladder assembly 4 is stable when unfolded.

[0035] In some embodiments, frame assembly 1 is fixed on the frame and rack of the loader, and provides support for the whole folding step ladder structure. Specifically, frame assembly 1 includes frame support body 101 connected with the frame and rack of the loader, two top fixing blocks 102 hinged with connecting plate 301 are arranged at the top of frame support body 101, and two bottom fixing blocks 103 hinged with connecting groove plate 302 are arranged at the bottom of frame support body 101.

[0036] In some embodiments, the connecting assembly 3 is used to connect the rack assembly 1 and the folding ladder assembly 4, and the length of the connecting groove plate 302 is greater than that of the connecting plate 301. The number of connecting plates 301 is two, which are connected to the left and right sides of the upper part of the folding ladder assembly 4; one end of the connecting plate 301 is hinged to the top fixed block 102, and the other end is hinged to the folding ladder assembly 4. The number of connecting groove plates 302 is two, which are connected to the left and right sides of the lower part of the folding ladder assembly 4; one end of the connecting groove plate 302 is hinged to the bottom fixed block 103, and the other end is rotatably and slidingly connected to the folding ladder assembly 4.

[0037] In the above embodiments, the specific structure of the connecting groove plate 302 can be selected according to actual needs. For example, a hinge hole is formed at one end of the connecting groove plate 302, and the connecting groove plate 302 is hinged to the bottom fixed block 103 of the rack assembly 1 through the hinge hole. A slot hole extending along the axis of the connecting groove plate 302 is arranged in the middle of the connecting groove plate 302, and the folding ladder assembly 4 is provided with a lower rotating pin 409 which is rotatably and slidingly matched with the slot hole; the lower rotating pin 409 is embedded in the slot hole of the connecting groove plate 302, and the lower rotating pin 409 can rotate and move inside the slot hole, so that the lower half of the folding ladder assembly 4 can adapt to the structural movement of the upper half during movement. When the folding ladder assembly 4 is unfolded downward, the lower rotating pin 409 rotates and slides outward along the slot hole of the connecting groove plate 302, so that the folding ladder assembly 4 is in an inclined state; it can provide more convenient and comfortable experience for the driver to get on and off the vehicle, and improve work efficiency and safety. When the folding ladder assembly 4 is folded upward, the lower rotating pin 409 rotates and slides inward along the slot hole of the connecting groove plate 302, so that the folding ladder assembly 4 is in a folded state; it can adapt to the space in front of the loading vehicle rack, and at the same time, the folding ladder assembly 4 can move up and down, so as to ensure that the bottom of the climbing ladder does not collide with the ground during the working process of the loading vehicle, effectively protecting the climbing ladder structure.

[0038] In some embodiments, the support assembly 2 includes a limiting plate 203 fixed on the rack assembly 1 and extending to the bottom of the connecting plate 301, which is used to limit the downward rotation of the connecting plate 301 when the folding ladder assembly 4 is unfolded; and a fixed support frame 202 fixed on the rack assembly 1 and extending to the bottom of the connecting groove plate 302, which is used to provide support for the connecting groove plate 302 when the folding ladder assembly 4 is unfolded, and limit its downward rotation, so that the folding ladder assembly 4 remains stable when unfolded.

[0039] In some embodiments, the support assembly 2 further includes a handrail support 201 fixed on the rack assembly 1 and extending to both sides of the folding ladder assembly 4, the handrail support 201 includes a left handrail support located on the left side of the folding ladder assembly 4; a right handrail support 201 located on the right side of the folding ladder assembly 4; the left and right handrail supports have the same structure and are arranged in parallel and in the same plane.

[0040] In addition, the handrail support 201 is provided with a push rod 204 for hanging the folding ladder assembly 4 in the folded state.

[0041] Reference Figures 5 to 6 As shown in the drawings, in some embodiments, the folding ladder assembly 4 comprises two parallel ladder frames 401, and a plurality of steps 402 are arranged between the two parallel ladder frames 401. Each ladder frame 401 comprises a support rod 405, the support rod 405 is provided with a stop rod 407, an upper rotating pin 408 hinged with the connecting plate 301, and a lower rotating pin 409 in sliding rotation with the slot hole. When the folding ladder assembly 4 is folded upward, the folding ladder assembly 4 is fixed on the push rod 204 of the handrail support 201 through the stop rod 407 at the top of the support rod 405, so as to ensure that the bottom of the folding ladder does not collide with the ground during the operation of the loader, effectively protecting the structure of the folding ladder, thereby prolonging the service life of the folding ladder and improving the driving safety.

[0042] In some embodiments, the folding ladder assembly 4 further comprises a connecting rod 403 and a reset spring 404. Preferably, the number of ladder frames 401 is two, and the number of steps 402 is three. The two ends of each step 402 are respectively provided with a hinged hole. The two ends of each step 402 are respectively hinged with the ladder frame 401 and the connecting rod 403. Each connecting rod 403 is connected with three steps 402 at the same time, so as to realize the synchronous movement of the three steps 402. The reset spring 404 is connected between the step 402 and the support rod 405, so as to realize the automatic reset of the step 402 when no one is present. The inner side of the support rod 405 is provided with a limiting block 406 for limiting the step 402.

[0043] The specific working principle of the folding ladder structure of the utility model is as follows:

[0044] When the driver needs to get on or off the vehicle, the driver operates the folding ladder assembly 4 to drive the connecting plate 301 and the connecting slot plate 302 to synchronously rotate downward. At the same time, the lower rotating pin 409 of the folding ladder assembly 4 rotates outward along the slot hole of the connecting slot plate 302, so that the folding ladder assembly 4 is in an inclined state. When the connecting plate 301 and the connecting slot plate 302 are respectively abutted on the limiting plate 203 and the fixed support frame 202, the limiting plate 203 and the fixed support frame 202 provide support for the connecting plate 301 and the connecting slot plate 302, and limit the downward rotation thereof, so that the folding ladder assembly 4 remains stable when unfolded. The driver steps on the step 402, and the step 402 unfolds downward around the rotating pin shaft until abutting on the limiting block 406. Under the action of the connecting rod 403, the other steps 402 synchronously unfold downward under the action of the connecting rod 403, and remain fixed in the horizontal position under the action of the limiting block 406. At this time, the driver can enter the cab through the step 402 and the handrail support 201.

[0045] When the driver's feet leave the pedals 402, the three pedals 402 are restored to the folded state under the action of the reset springs 404. The driver operates the folding ladder assembly 4 to drive the connecting plate 301 and the connecting groove plate 302 to rotate upward synchronously. At the same time, the lower rotating pin 409 of the folding ladder assembly 4 rotates and slides inward along the slot hole of the connecting groove plate 302, so that the folding ladder assembly 4 is in the folded state. The folding ladder assembly 4 is fixed on the lever 204 of the handrail support 201 through the stopper 407 at the top of the supporting rod 405. Not only the space occupied by the climbing ladder is saved, but also the bottom of the climbing ladder is prevented from colliding with the ground during the working process of the loader, so that the climbing ladder structure is effectively protected, and the service life and driving safety of the climbing ladder are improved.

[0046] The utility model discloses still a kind of loader, including the folding climbing ladder structure as above.

[0047] The basic principle, main features and advantages of the utility model are shown and described above. It should be appreciated by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements. These changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A foldable step-scooter structure, characterized in that, The utility model relates to a folding ladder assembly, which comprises a frame assembly (1), a support assembly (2), a connecting assembly (3) and a folding ladder assembly (4). The frame assembly (1) is fixed on a whole vehicle. The connecting assembly (3) comprises a connecting plate (301) and a connecting slot plate (302), the two ends of the connecting plate (301) are hinged with the frame assembly (1) and the folding ladder assembly (4) respectively, one end of the connecting slot plate (302) is hinged with the frame assembly (1), and the other end is rotationally and slidably connected with the folding ladder assembly (4), when the folding ladder assembly (4) is unfolded, the bottom of the folding ladder assembly (4) rotates and slides outward relative to the connecting slot plate (302), so that the folding ladder assembly (4) is in an inclined state, when the folding ladder assembly (4) is folded upward, the bottom of the folding ladder assembly (4) rotates and slides inward relative to the connecting slot plate (302), so that the folding ladder assembly (4) is in a folded state. The support assembly (2) is fixed on the frame assembly (1) and provides limiting support for the connecting assembly (3), so that the folding ladder assembly (4) remains stable when unfolded.

2. The foldable step ladder structure of claim 1, wherein, The connecting slot plate (302) is provided with a slot hole extending along the axial direction thereof, and the folding ladder assembly (4) is provided with a lower rotating pin (409) rotationally and slidably matched with the slot hole.

3. The foldable step configuration according to claim 1, wherein, The support assembly (2) comprises a limiting plate (203) fixed on the frame assembly (1) and extending to the bottom of the connecting plate (301), which is used for limiting the downward rotation of the connecting plate (301) when the folding ladder assembly (4) is unfolded. And a fixed support frame (202) fixed on the frame assembly (1) and extending to the bottom of the connecting slot plate (302), which is used for limiting the downward rotation of the connecting slot plate (302) when the folding ladder assembly (4) is unfolded.

4. The foldable step configuration according to claim 3, wherein, The support assembly (2) further comprises a handrail support (201) fixed on the frame assembly (1) and extending to both sides of the folding ladder assembly (4), and the handrail support (201) is provided with a push rod (204) for suspending the folding ladder assembly (4) in a folded state.

5. The foldable step configuration according to claim 2, wherein, The folding ladder assembly (4) comprises two parallel ladder frames (401), and the two parallel ladder frames (401) are provided with a plurality of steps (402) in the middle, each ladder frame (401) comprises a support rod (405), and the support rod (405) is provided with a blocking rod (407), an upper rotating pin (408) hinged with the connecting plate (301) and a lower rotating pin (409) rotationally and slidably matched with the slot hole.

6. The foldable step configuration according to claim 5, wherein, The folding ladder assembly (4) further comprises a connecting rod (403), one end of each step (402) is hinged with the support rod (405), and the other end is hinged with the connecting rod (403), and the inner side of the support rod (405) is provided with a limiting block (406) for limiting the step (402).

7. The foldable step configuration according to claim 6, wherein, The folding ladder assembly (4) further comprises a reset spring (404) connected between the step (402) and the support rod (405).

8. The foldable step configuration of claim 1 wherein, The rack assembly (1) comprises a frame support body (101) fixed on a whole vehicle, a top fixing block (102) hinged with the connecting plate (301) is arranged on the top of the frame support body (101), and a bottom fixing block (103) hinged with the connecting groove plate (302) is arranged on the bottom of the frame support body (101).

9. A loader characterized in that, A folding step ladder structure comprising the steps of any one of claims 1-8.

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