Climbing appliance with ladder assembly capable of being automatically locked

Abstract

The utility model discloses a climbing appliance with a ladder assembly capable of being automatically locked. The climbing appliance comprises a climbing tabletop, the ladder assembly and a locking module, the ladder assembly is arranged at the end part of the climbing platform surface, and the top end of the ladder assembly is hinged with the climbing platform surface through a rotating piece arranged between the ladder assembly and the climbing platform surface; a limiting long groove is formed in the position, corresponding to the top end of the ladder assembly, of the climbing table top, the limiting long groove is provided with a locking end point and an unlocking end point, locking of the ladder assembly can be rapidly achieved through matching of the locking action end, the limiting long groove and the first locking position, and specifically, when the ladder assembly is in a supporting state, the locking action end is locked, and the locking action end is unlocked. The first locking position is right opposite to the locking end point, and the locking action end is located at the locking end point and located at the first locking position, so that the ladder assembly does not move at will in the supporting state.

Description

TECHNICAL FIELD

[0001] The utility model relates to a climbing appliance technical field, concretely relates to a climbing appliance with automatically locked ladder frame. BACKGROUND

[0002] Climbing appliances, such as work platforms, scaffolds, ladders, etc., are tools used to provide additional height in industry, construction, maintenance, and various daily activities. The design purpose of these devices is to safely elevate workers to the desired height to perform specific tasks. Work platforms usually consist of a platform that can be fixed at different heights and are often equipped with guardrails and other safety features to protect the user.

[0003] The problem existing in the current design of some work platforms is related to the locking mechanism. Specifically:

[0004] Firstly, the locking between the platform and the ladder frame of most current work platforms is realized by a locking pin arranged on the side of the work platform, i.e., the locking pin is arranged on the ladder frame, and the inner rotation of the locking pin is fixed with the side wall of the platform to realize the locking between the platform and the ladder frame. This design increases the size of the finished product, affecting the number and efficiency of packing. When multiple work platforms need to be transported or stored, the increased size means that the number of work platforms that can be accommodated in each packaging box is reduced, increasing the logistics cost.

[0005] Secondly, when unlocking the locking pin arranged on the side of the ladder frame, the locking pin needs to be pushed and pulled laterally. If the locking pin is fixed with the platform by a threaded way, the locking pin also needs to be rotated. Once the degree of screwing is large, the operator needs to exert a large force or use auxiliary components to complete the unlocking action, which reduces the work efficiency and increases the risk of injury.

[0006] Therefore, how to solve the above-mentioned problems existing in the prior art has become the subject to be studied and solved by the utility model. CONTENT OF THE UTILITY MODEL

[0007] The utility model provides a climbing appliance with automatically locked ladder frame, which aims to solve the technical problems proposed in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a climbing appliance with automatically locked ladder frame, which comprises a climbing platform, a ladder frame, and a locking module.

[0009] The ladder frame is arranged at the end of the climbing platform, and the top end of the ladder frame is hinged with the climbing platform through a rotating piece arranged between the ladder frame and the climbing platform, so that the ladder frame has a supporting state and a storage state.

[0010] The climbing platform is provided with a limiting long slot at a position corresponding to the top end of the ladder frame, and the limiting long slot is provided with a locking end point and an unlocking end point; the locking module is arranged on the climbing platform and has a locking action end which extends to the ladder frame through the limiting long slot;

[0011] A first locking position is arranged on the ladder frame corresponding to the locking action end;

[0012] The first locking position comprises a first matching slot hole which is concave towards the ladder frame, and the slot bottom surface of the first matching slot hole serves as a first locking matching surface, and the first matching slot hole is provided with a first unlocking matching surface at the hole edge or periphery; a guide inclined surface is arranged between the first locking matching surface and the first unlocking matching surface, or a guide surface is arranged on the locking action end;

[0013] The locking module further comprises a resilient element, and the resilient force of the resilient element forces the locking action end to extend into the first matching slot hole and abut against the first unlocking matching surface or the first locking matching surface;

[0014] When the ladder frame is in the supporting state, the first unlocking matching surface is arranged to face the unlocking end point, the first locking matching surface is arranged to face the locking end point, the locking action end of the locking module is located at the locking end point and is in locking cooperation with the first locking matching surface;

[0015] When unlocking is required, an external force drives the locking module to move the locking action end to the unlocking end point, and the unlocking is completed by cooperation with the first unlocking matching surface.

[0016] In the above scheme, the related content is explained as follows:

[0017] In the above scheme, the rotating member can be selected from a rotating shaft, a pivot and the like.

[0018] In the above scheme, the ladder frame is provided with at least two, and when two are provided, only the contact area between the bottom of the ladder frame and the ground is required to be large enough to ensure stability, and in the embodiment, the ladder frame is preferably four.

[0019] Secondly, each ladder frame has a supporting state and a storage state, in the supporting state, the ladder frame is erected and the bottom of the ladder frame is in contact with the ground, and in the storage state, the ladder frame is turned over to be parallel to the side of the climbing platform.

[0020] In the above scheme, the limiting long slot can be a horizontally arranged long slot-shaped long hole.

[0021] In the above scheme, the locking action end of the locking module can be elastically arranged, that is, the locking action end can reciprocate along the axis direction of the limiting long slot in the limiting long slot.

[0022] Specifically, the locking module is provided with two, each of which is provided with two locking ends, and each of which corresponds to two ladders, so that only two locking modules can control four ladders.

[0023] Further, the ladder is provided with a second locking position corresponding to the locking end, the first and second locking positions are located on the same circle with the rotating member as the center, and are distributed around the rotating member in the circumferential direction.

[0024] The second locking position includes a second matching slot hole recessed towards the ladder, the bottom surface of the second matching slot hole serves as a second locking matching surface, and the second matching slot hole is provided with a second unlocking matching surface at the hole edge or periphery; the second locking matching surface and the second unlocking matching surface are provided with a guide slope, or the locking end is provided with a guide surface;

[0025] When the ladder is in the storage state, the second unlocking matching surface is configured to face the unlocking end point, the second locking matching surface is configured to face the locking end point, the locking end of the locking module is located at the locking end point, and is matched and locked with the second locking matching surface;

[0026] When unlocking is needed, an external force drives the locking module to move the locking end to the unlocking end point, and the unlocking is completed by matching with the second unlocking matching surface.

[0027] Further, the locking module includes a pull rod, the end of the pull rod is provided with a locking pin, the locking pin is configured to be inserted into the limiting long slot, and the end of the locking pin serves as the locking end.

[0028] With the above design, the locking and unlocking of the locking module can be achieved by simply pushing and pulling the rod. The whole process is convenient and efficient, and the efficiency is high when the force is applied.

[0029] Further, the elastic element is a spring piece, one end of the spring piece is connected with the locking pin, and the other end is connected with the end of the pull rod. With the above design, the locking end can reciprocate in the limiting long slot along the axis direction of the limiting long slot. It is convenient to avoid the first and second locking positions.

[0030] In summary, when the locking end slides in the limiting long slot along the length direction of the long hole, it can be quickly locked and fixed by matching with the second and first locking positions.

[0031] Specifically, when the ladder frame is in the supporting state, the first unlocking fitting surface on the first locking position is opposite to the unlocking end point, the first locking fitting surface on the first locking position is opposite to the locking end point, the locking pin is inserted into the second fitting slot hole, and the end of the locking pin is in abutment with the first locking fitting surface;

[0032] Once it is required to enter the storage state, at this time, the pull rod is pulled to make the locking pin slide from the first locking fitting surface on the first locking position to the first unlocking fitting surface with the elastic sheet, in this process, the elastic sheet is bent to make the locking pin slide unaffected. When the end of the locking pin is in contact with the first unlocking fitting surface, the ladder frame can be quickly rotated to make the ladder frame in the storage state, at this time, the second unlocking fitting surface on the second locking position is opposite to the unlocking end point, the second locking fitting surface on the second locking position is opposite to the locking end point, the locking pin is inserted into the second locking position, and the end of the locking pin is in abutment with the second locking fitting surface on the second locking position.

[0033] Further technical solutions, the climbing appliance further comprises a dynamic sheet and a static sheet;

[0034] The static sheet is positioned and connected at the side of the climbing platform;

[0035] The dynamic sheet is positioned and connected at the end of the ladder frame;

[0036] The rotating member is positioned and connected between the dynamic sheet and the static sheet;

[0037] The limiting long slot is arranged on the surface of the static sheet, and the first locking position is arranged on the surface of the dynamic sheet.

[0038] By means of the above design, when damage occurs in the limiting long slot, the first locking position or the second locking position, the dynamic sheet or the static sheet can be directly replaced.

[0039] In the above scheme, the bottom surface of the climbing platform has a groove for installing the locking module, so that the height size of the climbing appliance can be sufficiently reduced.

[0040] When arranged, the static sheet can be arranged at the side of the climbing platform, and the climbing platform is exposed below the static sheet, and the locking action end on the locking module directly penetrates through the limiting long slot on the static sheet.

[0041] However, this way increases the height size of the climbing appliance.

[0042] Therefore, the locking module is directly arranged in the groove, and the locking action end penetrates through the inner wall of the groove and then penetrates into the limiting long slot.

[0043] Further technical solutions, the surface of the dynamic sheet is provided with a first abutment block; and the surface of the static sheet is provided with a second abutment block;

[0044] The first abutting block and the second abutting block are arranged on the surface opposite to the moving plate and the static plate;

[0045] The first abutting block has a first abutting part;

[0046] The second abutting block has a second abutting part;

[0047] When the ladder frame is in the supporting state, the first abutting part is configured to abut against the second abutting part to limit the rotation tendency of the ladder frame.

[0048] With the above design, the rotation tendency of the ladder frame is limited when the ladder frame is in the supporting state, and the ladder frame will not shake randomly.

[0049] Further, the ladder frame side wall has a containing groove for containing the moving plate.

[0050] Since the moving plate has the first abutting block and the moving plate itself has a certain thickness, when the ladder frame is hinged, if the moving plate is directly fixed to the side wall of the ladder frame, there will be a certain gap between the ladder frame and the climbing platform surface, which will cause the ladder frame to shake easily. With the above design, the ladder frame and the climbing platform surface are closely fitted.

[0051] Further, the moving plate, the static plate, the locking pin, the elastic element, and the pull rod constitute a locking mechanism.

[0052] Each of the two sides of the ladder frame in the width direction is symmetrically provided with the locking mechanism, and the pull rods of the locking mechanisms on the two sides of the ladder frame in the width direction are coaxially connected or use the same rod.

[0053] Further, the first unlocking matching surface is located at the hole along of the first matching slot hole, and the first unlocking matching surface and the first locking matching surface are connected by a guide inclined surface; when the locking end is located at the unlocking end point, the locking end is opposite to the connection position of the first unlocking matching surface and the guide inclined surface, so that the locking end has a tendency to automatically slide to the guide inclined surface when it is stretched out under the action of the elastic element.

[0054] As for the "first", "second", and the like used herein, they do not particularly refer to the order or sequence, nor are they used to limit the case, but only to distinguish the components or operations described by the same technical terms.

[0055] As for the "connection" or "positioning" used herein, it can mean that two or more components or devices are in direct physical contact with each other or indirectly in physical contact with each other, or it can mean that two or more components or devices operate or act on each other.

[0056] As used herein, the terms "comprise", "comprising", "include", "including", "have", "having" or the like are open-ended, that is, they mean and encompass "consisting of" but also "consisting essentially of" and "consisting of".

[0057] As used herein, the terms of art, unless otherwise specifically defined herein, generally have the meanings that are commonly understood by one of ordinary skill in the art in the field of the disclosure, throughout the content of this disclosure, and in the context in which they are used. Some terms that are used to describe the present disclosure are discussed below or elsewhere in the specification in order to provide additional guidance to the practitioner in the art regarding the descriptions of the present disclosure.

[0058] As used herein, the terms "front", "back", "up", "down", "left", "right" and the like merely describe the orientation in the drawings and are not intended to limit the position, orientation, or use of the present disclosure.

[0059] The working principle and advantages of the utility model are as follows:

[0060] In the utility model, the locking effect end cooperates with the limiting long groove and the first locking position to realize the locking and unlocking operation of the ladder frame quickly, and the ladder platform surface is not exposed when locking, and the unlocking is convenient and fast, and the locking effect end slides in the limiting long groove directly, specifically, when the ladder frame is in the supporting state, the first locking position is opposite to the locking end point, the locking effect end is located at the locking end point and is positioned at the first locking position, so that the ladder frame does not move randomly in the supporting state, and in order to make the ladder frame enter the storage state, the locking module drives the locking effect end to slide from the locking end point to the unlocking end point, and then the ladder frame is turned to the side of the ladder platform surface, at this time, the second locking position is opposite to the locking end point, and the locking effect end slides to the locking end point and is positioned at the first locking position, so that the ladder frame does not move randomly in the storage state.

[0061] In the utility model, the locking effect end of the locking module arranged on the ladder platform surface is arranged on the side surface of the ladder frame facing the ladder platform surface, compared with the locking pin arranged in the prior art which increases the product size, the locking module in the utility model has good hiding property and does not expose the edge of the ladder frame, that is, the product size is not increased, and the packaging difficulty and logistics cost are reduced.

[0062] In the utility model, the force direction of driving the locking module is along the length direction of the ladder platform surface, when driving, the whole palm can simultaneously exert force on the pull rod, so that the pull rod slides in the limiting long groove with the locking pin to realize the unlocking and locking operation, compared with the unlocking mode of the prior art in which the finger exerts force or the auxiliary component is used, the unlocking operation of the utility model is simple and more labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0063] ATTACHMENT Figure 1This is a structural schematic diagram of the ladder frame in the supported state in an embodiment of the present utility model;

[0064] Appendix Figure 2 This is a schematic diagram of the ladder rack in the storage state in an embodiment of the present utility model;

[0065] Appendix Figure 3 This is a schematic diagram of the bottom structure of the climbing platform in an embodiment of this utility model;

[0066] Appendix Figure 4 This is a perspective view of the locking module in an embodiment of the present utility model;

[0067] Appendix Figure 5 This is a schematic diagram of the locking pin in the second locking position when it is in the locked state in an embodiment of the present utility model;

[0068] Appendix Figure 6 This is a schematic diagram of the locking pin in the second locking position when it is in the unlocked state in an embodiment of the present utility model;

[0069] Appendix Figure 7 This is a schematic diagram of the spring sheet structure in an embodiment of the present utility model;

[0070] Appendix Figure 8 This is a schematic diagram of the ladder frame structure in an embodiment of the present utility model.

[0071] Appendix Figure 9 This is a schematic diagram of the structure in an embodiment of the present utility model.

[0072] In the attached diagrams: 1. Climbing platform; 2. Ladder frame; 3. Locking module; 4. Rotating component; 5. Limiting groove; 6. Locking end point; 7. Unlocking end point; 8. First locking position; 9. Second locking position; 10. Pull rod; 11. Locking pin; 12. Spring piece; 13. Second mating slot hole; 14. Second locking mating surface; 15. First locking mating surface; 16. First unlocking mating surface; 17. First mating slot hole; 18. Second unlocking mating surface; 19. Moving piece; 20. Stationary piece; 21. First abutment block; 22. Second abutment block; 23. Receiving groove. Detailed Implementation

[0073] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0074] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0075] The terms used herein are only for describing specific embodiments and are not intended to limit the present case. The singular forms "a", "this", "this", "this" and "this" as used herein also include the plural forms.

[0076] Referring to the accompanying Figures 1-9 As shown in the drawings, an automatic locking ladder stand climbing device includes a climbing platform 1, a ladder stand 2 and a locking module 3;

[0077] The ladder stand 2 is arranged at the end of the climbing platform 1, and the top end of the ladder stand 2 is hinged to the climbing platform 1 through a rotating member 4 arranged between the ladder stand 2 and the climbing platform 1, so that the ladder stand 2 has a supporting state and a storage state;

[0078] A limiting long slot 5 is arranged on the climbing platform 1 at a position corresponding to the top end of the ladder stand 2, and the limiting long slot 5 has a locking end point 6 and an unlocking end point 7; the locking module 3 is arranged on the climbing platform 1 and has a locking action end which extends to the ladder stand 2 through the limiting long slot 5;

[0079] A first locking position 8 is arranged on the ladder stand 2 corresponding to the locking action end;

[0080] The first locking position 8 includes a first matching slot hole 17 concave towards the ladder stand 2, and the slot bottom surface of the first matching slot hole 17 serves as a first locking matching surface 15, and the first matching slot hole 17 hole along or periphery is provided with a first unlocking matching surface 16; a guide slope is arranged between the first locking matching surface 15 and the first unlocking matching surface 16, or a guide surface is arranged on the locking action end;

[0081] The locking module 3 further includes a resilient element, and the elastic force of the resilient element forces the locking action end to extend into the first matching slot hole 17 and abut against the first unlocking matching surface 16 or the first locking matching surface 15;

[0082] When the ladder stand 2 is in the supporting state, the first unlocking matching surface 16 is arranged to face the unlocking end point 7, the first locking matching surface 15 is arranged to face the locking end point 6, and the locking action end of the locking module 3 is located at the locking end point 6 and is just matched and locked with the first locking matching surface 15;

[0083] When unlocking is needed, an external force drives the locking module 3 to move the locking action end to the unlocking end point 7, and the unlocking is completed by matching with the first unlocking matching surface 16.

[0084] In this embodiment, the rotating member 4 can be a rotating shaft, a pivot, etc.

[0085] In the embodiment, the ladder stands 2 are arranged at least two, when arranged two, only need to ensure that the bottom of the ladder stand 2 is in contact with the ground with a larger area to ensure stability, and in the embodiment, the ladder stands 2 are preferably four.

[0086] Secondly, each ladder stand 2 has a supporting state and a storage state, in the supporting state, the ladder stand 2 is erected, and the bottom of the ladder stand 2 is in contact with the ground, and in the storage state, the ladder stand 2 is turned to be parallel to the side of the climbing platform 1.

[0087] In the embodiment, the limiting long groove 5 can be a horizontally arranged long hole.

[0088] In the embodiment, the locking end of the locking module 3 can be elastically arranged, that is, the locking end can reciprocate along the axis direction of the limiting long groove 5 in the limiting long groove 5.

[0089] Specifically, the locking module 3 is provided with two, each locking module 3 is provided with two locking ends, and each locking module 3 corresponds to two ladder stands 2, so that only two locking modules 3 can control four ladder stands 2.

[0090] In the embodiment, the locking end, the limiting long groove 5 and the first locking position 8 are matched to quickly realize the locking of the ladder stand 2, specifically, when the ladder stand 2 is in the supporting state, the first locking position 8 is opposite to the locking end point 6, the locking end is located at the locking end point 6 and is positioned at the first locking position 8, so that the ladder stand 2 does not move randomly in the supporting state; in order to make the ladder stand 2 enter the storage state, the locking module 3 is directly driven to slide the locking end from the locking end point 6 to the unlocking end point 7, and then the ladder stand 2 is turned to the side of the climbing platform 1, at this time, the second locking position 9 is opposite to the locking end point 6, the locking end is slid to the locking end point 6 and is positioned at the first locking position 8, so that the ladder stand 2 does not move randomly in the storage state.

[0091] In the embodiment, the first locking position 8 can be a concave groove or a through hole, but an inclined block is arranged in the through hole, and the surface of the inclined block is the same as the structure of the groove bottom.

[0092] Meanwhile, the first locking surface 15 and the first unlocking surface 16 are provided with a guide inclined surface, or the locking end is provided with a guide surface, that is, when the guide inclined surface is arranged between the first locking surface 15 and the first unlocking surface 16, the end surface of the locking end can be arc-shaped or circular, in this case, the guide inclined surface can easily realize the switching purpose between the first locking surface 15 and the first unlocking surface 16.

[0093] And the locking end is provided with a guide surface refers to the first locking surface 15 and the first unlocking surface 16 combination forms Z-shaped, this case the locking end end face is arc or round can not easily switch, only the locking end is provided with a slope (i.e. guide surface) can, when the locking end is provided with a slope, the slope contacts the Z-shaped corner between the first locking surface 15 and the first unlocking surface 16, and the slope will be friction at the corner.

[0094] In some embodiments, the ladder 2 corresponding to the locking end is also provided with a second locking position 9, the second locking position 9 and the first locking position 8 are located on the same circumference with the rotating member 4 as the center of rotation, and are distributed around the rotating member 4 in the circumferential direction;

[0095] The second locking position 9 includes a second matching groove 13 concave towards the inside of the ladder 2, the groove bottom surface of the second matching groove 13 serves as a second locking surface 14, and the second matching groove 13 hole along or periphery is provided with a second unlocking surface 18; the second locking surface 14 and the second unlocking surface 18 are provided with a guide slope, or the locking end is provided with a guide surface;

[0096] When the ladder 2 is in the storage state, the second unlocking surface 18 is configured to face the unlocking end point 7, the second locking surface 14 is configured to face the locking end point 6, and the locking end of the locking module 3 is located at the locking end point 6 and is just matched with the second locking surface 14 to lock;

[0097] When unlocking is needed, the locking module 3 is driven by external force to move the locking end to the unlocking end point 7, and the unlocking is completed by matching with the second unlocking surface 18.

[0098] As can be seen from the above, the second locking position 9 and the first locking position 8 have the same structure

[0099] In some embodiments, the locking module 3 includes a pull rod 10, the end of the pull rod 10 is provided with a locking pin 11, the locking pin 11 is configured to be inserted into the limiting long groove 5, and the end of the locking pin 11 serves as the locking end.

[0100] With the above design, when the locking module 3 is locked and unlocked, only the pull rod 10 needs to be pushed and pulled. The whole process is convenient and fast, and the efficiency is high when the force is applied.

[0101] In some embodiments, the elastic element is a spring 12, one end of which is connected to the locking pin 11, and the other end is connected to the end of the pull rod 10. With the above design, the locking end can reciprocate along the axis of the long limiting slot 5, so as to facilitate the avoidance of the first locking position 8 or the second locking position 9.

[0102] In summary, when the locking end slides along the length direction of the long slot 5, it can be quickly locked and fixed by cooperating with the second locking position 9 and the first locking position 8.

[0103] Specifically, when the ladder frame 2 is in the supporting state, the first unlocking surface 16 on the first locking position 8 is opposite to the unlocking end point 7, the first locking surface 15 on the first locking position 8 is opposite to the locking end point 6, the locking pin 11 is inserted into the second matching slot hole 13, and the end of the locking pin 11 abuts against the first locking surface 15.

[0104] Once it is needed to enter the storage state, at this time, the pull rod 10 is pulled, so that the locking pin 11 slides from the first locking surface 15 of the first inclined push block to the first unlocking surface 16 through the spring 12. In this process, the spring 12 is bent, so that the sliding of the locking pin 11 is not affected. When the end of the locking pin 11 contacts the first unlocking surface 16, the ladder frame 2 can be quickly rotated, so that the ladder frame 2 is in the storage state. At this time, the first unlocking surface 16 on the second inclined push block is opposite to the unlocking end point 7, the first locking surface 15 on the second inclined push block is opposite to the locking end point 6, the locking pin 11 is inserted into the first matching slot hole 17, and the end of the locking pin 11 abuts against the first locking surface 15 on the second inclined push block.

[0105] In some embodiments, the climbing tool further comprises a moving piece 19 and a static piece 20.

[0106] The static piece 20 is connected to the side of the climbing platform 1.

[0107] The moving piece 19 is connected to the end of the ladder frame 2.

[0108] The rotating piece 4 is connected between the moving piece 19 and the static piece 20.

[0109] The long limiting slot 5 is arranged on the surface of the static piece 20, and the first locking position 8 is arranged on the surface of the moving piece 19.

[0110] With the above design, when the long limiting slot 5, the first locking position 8 or the second locking position 9 is damaged, the moving piece 19 or the static piece 20 can be directly replaced.

[0111] The bottom surface of the climbing platform 1 has a groove for installing the locking module 3, so as to reduce the height of the climbing device.

[0112] In the setting, the static sheet 20 is arranged at the side of the climbing platform 1, and the climbing platform 1 is exposed below the static sheet 20, and the locking end of the locking module 3 directly penetrates through the limiting long slot 5 on the static sheet 20.

[0113] However, this way increases the height of the climbing device.

[0114] Therefore, the locking module 3 is directly arranged in the groove, and the locking end penetrates through the inner wall of the groove and then penetrates into the limiting long slot 5.

[0115] In some embodiments, the surface of the dynamic sheet 19 is provided with a first abutting block 21; and the surface of the static sheet 20 is provided with a second abutting block 22.

[0116] The first abutting block 21 and the second abutting block 22 are arranged on the opposite side surfaces of the dynamic sheet 19 and the static sheet 20.

[0117] The first abutting block 21 has a first abutting part.

[0118] The second abutting block 22 has a second abutting part.

[0119] When the ladder stand 2 is in the supporting state, the first abutting part is configured to abut against the second abutting part to limit the rotation tendency of the ladder stand 2.

[0120] By the above design, the rotation tendency of the ladder stand 2 is limited when the ladder stand 2 is in the supporting state, and the ladder stand 2 will not shake randomly.

[0121] In some embodiments, the side wall of the ladder stand 2 has a containing groove 23 for containing the dynamic sheet 19.

[0122] Since the dynamic sheet 19 has the first abutting block 21, and the dynamic sheet 19 itself has a certain thickness, when the ladder stand 2 is hinged, if the dynamic sheet 19 is directly fixed on the side wall of the ladder stand 2, there will be a certain gap between the ladder stand 2 and the climbing platform 1, which will cause the ladder stand 2 to shake easily. By the above design, the ladder stand 2 and the climbing platform 1 are closely attached.

[0123] As shown in the drawings, in some embodiments, the dynamic sheet 19, the static sheet 20, the locking pin 11, the elastic element, and the pull rod 10 constitute a locking mechanism.

[0124] Each of the two sides of the ladder frame 2 is symmetrically provided with a locking mechanism, and the pull rod 10 of the locking mechanism on the two sides of the ladder frame 2 is coaxially connected or uses the same rod.

[0125] That is, the locking mechanism can be arranged at both ends of the ladder frame 2, and preferably, the locking mechanism is arranged at the top end of the ladder frame 2.

[0126] In some embodiments, the first unlocking matching surface 16 is located at the hole end of the first matching slot hole 17, and the first locking matching surface 15 and the first unlocking matching surface 16 are connected by a guide slope; when the locking end is located at the unlocking end point 7, the locking end is opposite to the connection position of the first unlocking matching surface 16 and the guide slope, so that the locking end has a tendency to automatically slide to the guide slope when the locking end is extended under the action of the elastic element.

[0127] Working principle:

[0128] Since the ladder frame 2 has a supporting state and a storage state, the following is described in two states:

[0129] When the ladder frame 2 is in the supporting state, the first unlocking matching surface 16 on the first matching slot hole 17 is opposite to the unlocking end point 7, the first locking matching surface 15 on the first matching slot hole 17 is opposite to the locking end point 6, the locking pin 11 is inserted into the first matching slot hole 17, and the end of the locking pin 11 abuts against the first locking matching surface 15; at the same time, the side wall of the locking pin 11 abuts against the side wall of the limiting long groove 5, so that the position of the ladder frame 2 is fixed.

[0130] At the same time, the first abutting portion abuts against the second abutting portion, so as to further limit the rotation tendency of the ladder frame 2, so that the ladder frame 2 remains in the supporting state.

[0131] Once the storage state is needed, at this time, the pull rod 10 is pulled, so that the locking pin 11 is slid from the first locking matching surface 15 of the first matching slot hole 17 to the first unlocking matching surface 16 through the elastic sheet 12. In this process, the elastic sheet 12 is bent, so that the sliding of the locking pin 11 is not affected. When the end of the locking pin 11 contacts the first unlocking matching surface 16, the ladder frame 2 can be quickly rotated, so that the ladder frame 2 is in the storage state, at this time, the second unlocking matching surface 18 on the second matching slot hole 13 is opposite to the unlocking end point 7, the second locking matching surface 14 on the second matching slot hole 13 is opposite to the locking end point 6, and the pull rod 10 is pushed, so that the locking pin 11 is inserted into the second matching slot hole 13 until the end of the locking pin 11 abuts against the second locking matching surface 14 on the second matching slot hole 13.

[0132] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A ladder stand climbing aid having automatic locking of the ladder stand, characterized in that: The climbing device comprises a climbing platform (1), a ladder frame (2) and a locking module (3); The ladder frame (2) has a supporting state and a storage state; The climbing platform (1) is provided with a limiting long slot (5) at a position corresponding to the top end of the ladder frame (2), the limiting long slot (5) is provided with a locking end point (6) and an unlocking end point (7), and the locking module (3) is arranged on the climbing platform (1) and has a locking action end which extends to the ladder frame (2) through the limiting long slot (5); A first locking position (8) is arranged on the ladder frame (2) corresponding to the locking action end; The first locking position (8) comprises a first matching slot hole (17) which is recessed towards the inside of the ladder frame (2), the slot bottom surface of the first matching slot hole (17) serves as a first locking matching surface (15), and the first matching slot hole (17) is provided with a first unlocking matching surface (16) at the hole edge or periphery; a guide slope is arranged between the first locking matching surface (15) and the first unlocking matching surface (16), or a guide surface is arranged on the locking action end; The locking module (3) further comprises a resilient element, and the resilient force of the resilient element forces the locking action end to extend into the first matching slot hole (17) and abut against the first unlocking matching surface (16) or the first locking matching surface (15); When the ladder frame (2) is in the supporting state, the first unlocking matching surface (16) is arranged to face the unlocking end point (7), the first locking matching surface (15) is arranged to face the locking end point (6), and the locking action end of the locking module (3) is located at the locking end point (6) and is locked with the first locking matching surface (15); When unlocking is needed, an external force drives the locking module (3) to move the locking action end to the unlocking end point (7), and the unlocking is completed by matching with the first unlocking matching surface (16).

2. The ladder stand of claim 1, wherein: A second locking position (9) is further arranged on the ladder frame (2) corresponding to the locking action end, the second locking position (9) and the first locking position (8) are located on the same circle with the rotating member (4) arranged between the ladder frame (2) and the climbing platform (1) as the rotation center and are distributed around the rotating member (4) in the circumferential direction; The second locking position (9) comprises a second matching slot hole (13) which is recessed towards the inside of the ladder frame (2), the slot bottom surface of the second matching slot hole (13) serves as a second locking matching surface (14), and the second matching slot hole (13) is provided with a second unlocking matching surface (18) at the hole edge or periphery; a guide slope is arranged between the second locking matching surface (14) and the second unlocking matching surface (18), or a guide surface is arranged on the locking action end; When the ladder frame (2) is in the storage state, the second unlocking matching surface (18) is arranged to face the unlocking end point (7), the second locking matching surface (14) is arranged to face the locking end point (6), and the locking action end of the locking module (3) is located at the locking end point (6) and is locked with the second locking matching surface (14); When it needs to be unlocked, external force drives the locking module (3) to move its locking end to the unlocking end point (7), and the unlocking is completed by cooperating with the second unlocking cooperation surface (18).

3. The self-locking ladder stand of claim 1, wherein: The locking module (3) comprises a pull rod (10), and the end of the pull rod (10) is provided with a locking pin (11) configured to be inserted into the limiting long slot (5), and the end of the locking pin (11) serves as the locking end.

4. A ladder stand climbing aid according to claim 3, wherein: The elastic element is a spring piece (12), one end of the spring piece (12) is positioned and connected with the locking pin (11), and the other end is positioned and connected with the end of the pull rod (10).

5. The self-locking ladder stand of claim 2, wherein: The ascending device further comprises a moving piece (19) and a static piece (20); The static piece (20) is positioned and connected to the side of the ascending platform (1); The moving piece (19) is positioned and connected to the end of the ladder frame (2); The rotating piece (4) is positioned and connected between the moving piece (19) and the static piece (20); The limiting long slot (5) is arranged on the surface of the static piece (20), and the first locking position (8) is arranged on the surface of the moving piece (19).

6. A ladder stand climbing aid as claimed in claim 5 wherein: The surface of the moving piece (19) is provided with a first abutting block (21), and the surface of the static piece (20) is provided with a second abutting block (22); The first abutting block (21) and the second abutting block (22) are arranged on the opposite side surfaces of the moving piece (19) and the static piece (20); The first abutting block (21) has a first abutting portion; The second abutting block (22) has a second abutting portion; When the ladder frame (2) is in the supporting state, the first abutting portion is configured to abut against the second abutting portion to limit the rotating trend of the ladder frame (2).

7. The self-locking ladder stand of claim 6, wherein: The side wall of the ladder frame (2) has a containing groove (23) for containing the moving piece (19).

8. A ladder stand as claimed in any one of claims 5 to 7, wherein: The moving piece (19), the static piece (20), the locking pin (11), the elastic element and the pull rod (10) constitute a locking mechanism. Each of the two sides of the ladder frame (2) in the width direction is symmetrically provided with a locking mechanism, and the pull rods (10) of the locking mechanisms on the two sides of the ladder frame (2) in the width direction are coaxially connected or adopt a same rod piece.

9. A ladder stand as claimed in any one of claims 1 to 7, wherein: The first unlocking cooperation surface (16) is located at the hole along of the first cooperation slot hole (17), and the first unlocking cooperation surface (16) and the first locking cooperation surface (15) are connected by a guide inclined surface; when the locking end is located at the unlocking end point (7), the locking end is opposite to the connection position of the first unlocking cooperation surface (16) and the guide inclined surface, so that the locking end has a trend of automatically sliding to the guide inclined surface when the locking end is stretched out under the action of the elastic element.

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