Handrail piece structure of climbing tool

Abstract

The utility model discloses a handrail piece structure of a climbing appliance, the climbing appliance comprises a climbing appliance main body with the highest treading surface and supporting legs arranged at the two ends of the climbing appliance main body, and the handrail piece structure comprises a handrail piece, a connecting piece and a guide part; one of the connecting piece and the guide part is arranged on the handrail piece, and the other one is correspondingly arranged on the side part of the supporting leg; wherein the armrest piece rotates relative to the supporting leg and is arranged in a sliding mode through matching of the connecting piece and the guiding part, so that the armrest piece has a supporting state and a containing state, and switching operation of the armrest piece between the supporting state and the containing state can be rapidly achieved through matching of the connecting piece and the guiding part. An operator can choose by himself or herself to support the handrail piece during climbing and store the handrail piece during packaging, so that the packaging of the climbing tool is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a climbing appliance technical field, concretely relates to a handrail structure of climbing appliance. BACKGROUND

[0002] Climbing appliances are widely used in many occasions, and their types are various to meet different height and operation requirements. Among them, the climbing platform as the main body of the climbing appliance is a relatively common form.

[0003] The climbing platform has different height specifications. For some low-height climbing platforms, the user can directly step on them, and the operation is relatively simple and fast, which is suitable for some low-altitude operation scenes, such as replacing a high bulb, taking and placing a not very high layer of goods, etc., to facilitate people to complete some simple daily climbing tasks.

[0004] However, there are also climbing appliances with high main bodies on the market. The side of this kind of climbing appliance is usually equipped with steps so that the user can safely climb to the required height step by step to perform work such as high equipment installation, warehouse goods arrangement, etc. However, it is worth noting that some of these high climbing appliances do not have handrails, which increases the risk of use to some extent. In the absence of handrails, the stability of the user's body during climbing is relatively poor, and once the center of gravity is unbalanced, falling accidents are likely to occur, especially for some beginners or in a complex working environment, the safety risk is more prominent.

[0005] Secondly, although some climbing appliances are provided with handrails, the handrails are fixed, which are difficult to pack and can only be disassembled during packaging, but this increases the complexity of assembly.

[0006] Therefore, how to solve the above-mentioned problems of the prior art has become the research and solution of the utility model. CONTENT OF THE UTILITY MODEL

[0007] The utility model provides a handrail structure of climbing appliance, aims at solving one of the technical problems in the above background technology.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a handrail structure of climbing appliance, the climbing appliance includes a climbing appliance main body, the climbing appliance main body includes a highest tread surface and a supporting leg, the handrail structure includes a handrail and a rotating module.

[0009] The rotating module includes a connecting piece and a guide part.

[0010] One of the connecting piece and the guide part is arranged on the handrail, and the other is arranged on the side of the supporting leg correspondingly;

[0011] The rotating module is arranged between the handrail and the supporting leg, so that the handrail rotates and slides relative to the supporting leg, so that the handrail has a supporting state and a storage state. When the handrail is in the supporting state, the handrail is stretched upwards to exceed the highest tread surface. When the handrail is in the storage state, the handrail is turned to the side of the highest tread surface.

[0012] Further, the climbing aid further comprises a constraint part arranged on the handrail or the supporting leg. When the handrail is in the supporting state, the constraint part acts on the bottom end of the handrail to achieve locking positioning.

[0013] Further, the constraint part comprises a supporting seat arranged on the side of the supporting leg, and the supporting seat is formed with an insertion cavity matched with the shape of the handrail. When the handrail is in the supporting state, the bottom end of the handrail is inserted into the insertion cavity to achieve locking positioning.

[0014] Specifically, in order to make the constraint part have better constraint effect on the handrail, when the constraint part constraints the end of the handrail away from the main body of the climbing aid, the lower end of the handrail is directly inserted into the insertion cavity. After insertion, the supporting seat can play a protective role. However, sometimes the insertion cavity cannot be fully stable, so a anti-shaking pad is arranged in the insertion cavity. The anti-shaking pad can prevent the handrail from shaking.

[0015] Further, the guide part is arranged on the side of the handrail, and the connecting piece is arranged on the upper end side of the supporting leg.

[0016] The guide part is a long slot arranged on the side of the handrail, and the connecting piece is a sliding block embedded in the long slot. The sliding block is provided with a locking mechanism to lock the position when the connecting piece slides in the long slot.

[0017] Further, the sliding block is a bolt penetrating the long slot. One end of the bolt is fixedly connected with the upper end side of the supporting leg, and the other end is connected with the locking mechanism. The locking mechanism can move along the axis direction of the bolt.

[0018] The locking mechanism is a nut. The nut is formed with an abutting surface on the side opposite to the handrail. The abutting surface is arranged on the surface of the handrail and located on both sides of the long slot.

[0019] Further, the tool box is arranged on the upper end of the handrail for storing tools. The upper end cover is installed on the upper end of the handrail. The upper end side wall of the upper end cover is provided with an adjusting groove.

[0020] The fixing member is connected with the tool box and the armrest member by rotating through the adjusting slot on the upper end cover side;

[0021] The fixing member has two states of loosening and tightening, and only in the loosening state, the tool box can rotate relative to the armrest member in the adjusting slot with the fixing member as the rotating center;

[0022] When the armrest member is in the supporting state, the surface in the length direction of the tool box and the surface in the length direction of the armrest member form a set angle, and the set angle is maintained by the fixing member in the tightening state to form the working state of the tool box.

[0023] Further technical solutions, the adjusting slot is a bending slot with a set angle of bending angle, one end of the bending slot has a sliding hole one, and the other end has a sliding hole two, wherein the sliding hole one can provide horizontal support for the fixing member, and the sliding hole two can provide vertical support for the fixing member;

[0024] The tool box has a working state and a storage state;

[0025] When the tool box is in the working state, the sliding hole two supports the fixing member to maintain the position of the tool box in the working state;

[0026] When the tool box is in the storage state, the tool box is rotated to the surface in the length direction of the tool box is parallel to the surface in the length direction of the armrest member, and the sliding hole one supports the fixing member in the tightening state to maintain the position of the tool box.

[0027] Further technical solutions, the adjusting slot further comprises a vertical slot, the vertical slot is arranged between the sliding hole one and the bending point of the bending slot, and the vertical slot and the bending slot are in communication with each other;

[0028] The vertical slot is provided with a sliding hole three away from one end of the bending slot, and when the tool box with the fixing member is slid from the sliding hole two to the sliding hole three, and then displaced from the sliding hole three to the sliding hole one, the tool box enters the storage state from the working state;

[0029] The sliding hole three can provide vertical support opposite to the sliding hole two for the fixing member to limit the sliding distance of the fixing member in the vertical slot;

[0030] When the fixing member is slid from the sliding hole two to the sliding hole three, the tool box and the armrest member are away from each other at the opposite end to increase the rotating distance between the tool box and the armrest member;

[0031] When the tool box is in the storage state, the surface in the length direction of the tool box is parallel to the surface in the length direction of the armrest member, and the tool box also abuts against the opposite end of the armrest member.

[0032] Further, the end side wall of the tool box is provided with a lap joint groove matched with the upper end of the handrail member; and the side wall of the tool box is provided with a mounting hole matched with the fixing member in diameter.

[0033] Further, the guide part further comprises a guide sleeve, and the guide sleeve is internally provided with a first channel for accommodating the handrail member.

[0034] The connecting member further comprises a rotating shaft.

[0035] The rotating shaft serves as a rotating center part of the guide sleeve and the handrail member in switching between the folded state and the erected state.

[0036] One end of the rotating shaft is fixedly connected with the circumferential surface of the guide sleeve, and the other end of the rotating shaft is positioned in a first arc hole in the side part of the supporting leg, and a nut sleeve is positioned and connected at the penetrating end of the rotating shaft, so as to limit the axial direction of the rotating shaft.

[0037] When the supporting leg is folded, the first arc hole can play a role of giving way to the rotating shaft, so that the supporting leg can be normally folded.

[0038] Further, a stabilizing column is arranged beside the rotating shaft in the side part of the supporting leg.

[0039] A second arc hole is arranged at the corresponding position of the surface of the guide sleeve and the stabilizing column, and the stabilizing column is arranged to be positioned in the second arc hole when the guide sleeve is positioned and connected to the side part of the supporting leg through the rotating shaft.

[0040] The center of the second arc hole is on the axis of the rotating shaft.

[0041] The two ends of the second arc hole are respectively provided with a first bearing surface and a second bearing surface; the first bearing surface is used for providing vertical support for the guide sleeve; and the second bearing surface is used for providing horizontal support for the guide sleeve.

[0042] When the handrail member is in the erected state, the first bearing surface holds the position of the handrail member by supporting the stabilizing column.

[0043] When the handrail member is in the folded state, the second bearing surface holds the position of the handrail member parallel to the highest tread surface by supporting the stabilizing column.

[0044] Further, the inner side wall of the first channel is provided with a protruding part.

[0045] The circumferential side of the handrail member is provided with a recessed part matched with the protruding part, and the recessed part is arranged along the length direction of the handrail member.

[0046] The protruding part is configured to be embedded in the recessed part when the first channel contains the handrail.

[0047] Further technical solutions,

[0048] The first locking part and the second locking part are positioned and connected in the recessed part;

[0049] When the handrail is in the raised state:

[0050] The second locking part is configured to be arranged near one side of the lower end of the handrail;

[0051] The second locking part serves as an upper sliding control part for controlling the upper sliding trend of the handrail after sliding a certain distance along the guide sleeve;

[0052] The first locking part is arranged above the second locking part;

[0053] The first locking part serves as a lower sliding control part for controlling the lower sliding trend of the handrail after sliding a certain distance along the guide sleeve.

[0054] Further technical solutions, the restraint part further comprises a restraint sleeve positioned and connected on the side of the support leg and below the connecting part, the restraint sleeve has a second channel for accommodating the lower end of the handrail in the raised state, and the inner side wall surface of the second channel is the restraint surface;

[0055] The inner side wall of the second channel is provided with a avoiding groove at a corresponding position of the recessed part, for avoiding the second locking part.

[0056] Further technical solutions, the supporting part comprises a first supporting block and a second supporting block;

[0057] The side of the climbing aid body is positioned and connected with at least one first supporting block and one second supporting block;

[0058] The first supporting block and the second supporting block have a clamping groove on the side surface away from the ground;

[0059] The inner side wall of the clamping groove is the supporting surface.

[0060] With the above design, the handrail rod has higher stability when positioned on the side of the climbing aid body.

[0061] Further technical solutions, the side surface of the climbing aid body opposite to the highest tread surface has a mounting groove;

[0062] The first supporting block is provided with a fixing block on the side away from the clamping groove, and the fixing block is arranged along the length direction of the ladder climbing tool body;

[0063] The supporting member further comprises a clamping member;

[0064] The clamping member comprises a locking pin, an elastic member and a pushing bar, the pushing bar is arranged on the fixing block, the pushing bar is arranged perpendicularly to the fixing block and can move along the axis direction of the through hole on the fixing block, and the end of the pushing bar is provided with a bent part extending into the mounting groove in the direction of the ladder climbing tool body;

[0065] The locking pin is arranged correspondingly to the first supporting block, and one end of the locking pin is arranged in the mounting groove and the first supporting block;

[0066] The other end of the locking pin is connected to the bent part;

[0067] The elastic member is arranged between the bent part and the inner wall of the mounting groove, and the elastic member is arranged along the axis direction of the locking pin, so that the bent part has a tendency to push the locking pin into the clamping groove.

[0068] By the above design, when the handrail rod is arranged on the side of the ladder climbing tool body, the handrail rod can be limited in position by the clamping member, that is, the handrail rod is prevented from moving freely in the storage state.

[0069] Further, the side wall of the handrail rod is provided with a locking hole, and when the handrail rod abuts against the supporting surface, the through end of the locking pin is embedded in the locking hole.

[0070] By the above design, the handrail rod can be further limited by the locking hole matched with the locking pin.

[0071] As for the "first", "second" and the like used herein, they do not particularly mean the order or sequence, nor are used to limit the present application, but are only used to distinguish components or operations described by the same technical terms.

[0072] 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 in indirect physical contact with each other, or it can mean that two or more components or devices operate or act on each other.

[0073] As for the "contain", "include", "have" and the like used herein, they are all open terms, that is, they mean containing but not limited to.

[0074] As used herein, the terms have their ordinary meaning in the field of use, unless otherwise indicated specifically. Certain terms used to describe the application are discussed below or elsewhere in the specification, to provide additional guidance to those of skill in the art regarding the description of the application.

[0075] As used herein, the terms "front", "back", "up", "down", "left", "right" and the like refer to directions in the drawings to which the application is illustrated and are not intended to mean specific orientations of the application as embodied in practice.

[0076] The working principle and advantages of the utility model are as follows:

[0077] The utility model discloses a connecting piece and the cooperation of guide portion, and the switching operation of handrail piece between the supporting state and the storage state is realized quickly, so that the operator can select by oneself, and the handrail piece is propped up when climbing, and the handrail piece is stored when packing, so that the climbing tool package is not influenced.

[0078] Further, the utility model discloses the cooperation of restraint component and connecting piece to the positioning of two positions of handrail piece, so that the stability of whole handrail piece is higher in the use, specifically, first connecting piece is inserted into guide portion, then, if needing entering the use state, directly guiding handrail piece to rotate around connecting piece, until handrail piece is stretched upwards to exceed the main body surface of climbing tool, then, sliding handrail piece again, makes handrail piece slide to the inner wall of guide portion close to the one end of main body surface of climbing tool and connecting piece abutment, simultaneously, the lower end of handrail piece is restrained through restraint component, so that the handrail piece supporting state is formed, and handrail piece is limited by connecting piece and is restrained by restraint component in this state, and the phenomenon of shaking does not appear easily. BRIEF DESCRIPTION OF DRAWINGS

[0079] ATTACHED Figure 1 It is handrail piece structure schematic diagram in the utility model embodiment one;

[0080] ATTACHED Figure 2 It is main body structure schematic diagram of climbing tool in the utility model embodiment one;

[0081] ATTACHED Figure 3 It is guide portion structure schematic diagram in the utility model embodiment one;

[0082] ATTACHED Figure 4 It is tool box structure schematic diagram in the utility model embodiment one;

[0083] ATTACHED Figure 5 It is fixed piece structure schematic diagram in the utility model embodiment one;

[0084] ATTACHEDFigure 6 Structure diagram of upper end cover in the embodiment one of the utility model;

[0085] Figure Figure 7 Structure diagram of tool box in working state in the embodiment one of the utility model;

[0086] Figure Figure 8 Structure diagram when the tool box in the embodiment one of the utility model is switched from working state to storage state;

[0087] Figure Figure 9 Structure diagram of tool box in storage state in the embodiment one of the utility model;

[0088] Figure Figure 10 Structure diagram when the handrail part in the embodiment one of the utility model is connected with the tool box;

[0089] Figure Figure 11 Structure diagram of bearing seat in the embodiment one of the utility model;

[0090] Figure Figure 12 Structure diagram of handrail part in the embodiment two of the utility model;

[0091] Figure Figure 13 Structure diagram of second locking part in the embodiment two of the utility model;

[0092] Figure Figure 14 Structure diagram of guide part in the embodiment two of the utility model;

[0093] Figure Figure 15 Structure diagram of constraint sleeve in the embodiment two of the utility model;

[0094] Figure Figure 16 Structure diagram when the handrail part in the embodiment two of the utility model is connected with the constraint sleeve;

[0095] Figure Figure 17 Structure diagram of second bearing block in the embodiment two of the utility model;

[0096] Figure Figure 18 Structure diagram when the handrail part in the embodiment two of the utility model is stored;

[0097] Figure Figure 19 Structure diagram of guide sleeve in the embodiment two of the utility model;

[0098] Figure Figure 20 Structure diagram of climbing appliance main body in the embodiment two of the utility model;

[0099] Figure Figure 21 Figure Figure 20Fig. 2 is a schematic view of a cross-sectional structure along the direction of arrow A-A.

[0100] In the above figures: 1, handrail; 2, guide part; 3, connecting part; 4, support leg; 5, restraint part; 6, long hole; 7, climbing tool main body; 8, bearing seat; 9, insertion cavity; 10, anti-shaking pad; 11, fixing part; 12, tool box; 13, adjusting groove; 14, slide hole three; 15, slide hole two; 16, slide hole one; 17, upper end cover; 18, mounting hole; 19, overlapping groove; 20, elastic part; 21, second bearing block; 22, locking hole; 23, pushing bar; 24, bearing part; 25, lock pin; 26, clamping part; 27, highest tread surface; 28, bearing surface; 29, restraint surface; 30, fixing block; 31, mounting groove; 32, guide sleeve; 33, first channel; 34, rotating shaft; 35, first arc hole; 36, stabilizing column; 37, second arc hole; 38, first bearing surface; 39, second bearing surface; 40, protruding part; 41, recessed part; 42, first locking part; 43, second locking part; 44, restraint sleeve; 45, avoiding groove; 46, first bearing block. DETAILED DESCRIPTION

[0101] The utility model will be further described below in combination with the drawings and examples:

[0102] Examples: the following will be described in detail by the drawings and the present case is clearly explained, any person skilled in the art can be changed and modified by the technology taught by the present case after understanding the examples of the present case, which does not deviate from the spirit and scope of the present case.

[0103] The language in this paper is only for describing specific embodiments and is not intended to limit the present case. The singular form such as "one", "this", "this", "this" and "the" is also used in this paper, which also includes the plural form.

[0104] Referring to the drawings Figures 1-21 As shown in the drawings, a handrail structure of a climbing tool, the climbing tool includes a climbing tool main body 7, the climbing tool main body 7 includes a highest tread surface 27 and a support leg 4, and the handrail structure includes a handrail 1 and a rotating module;

[0105] The rotating module includes a connecting part 3 and a guide part 2;

[0106] One of the connecting part 3 and the guide part 2 is arranged on the handrail 1, and the other is arranged on the side of the support leg 4;

[0107] The rotating module is arranged between the handrail 1 and the supporting leg 4, so that the handrail 1 is rotatable and slidable relative to the supporting leg 4, and the handrail 1 has a supporting state and a storage state; when the handrail 1 is in the supporting state, the handrail 1 is extended upwards to exceed the highest tread surface 27; when the handrail 1 is in the storage state, the handrail 1 is turned to the side of the highest tread surface 27.

[0108] The utility model discloses can pass through the cooperation of connecting piece 3 and guide portion 2, the switching operation of handrail 1 between supporting state and storage state is realized quickly, so that the operator can choose by oneself, props up handrail 1 when climbing, when packing, storage handrail 1, so that the climbing tool package is not influenced.

[0109] Further, the utility model discloses can pass through the cooperation of restraint part 5 and connecting piece 3, and the positioning of two positions is exerted to handrail 1, so that the whole handrail 1 is higher in the use process Stability, specifically, first connecting piece 3 is inserted into guide portion 2, then, if need to enter the use state, directly guide handrail 1 to rotate around connecting piece 3, until handrail 1 is extended upwards to exceed the main body 7 of climbing tool, then, slide handrail 1 again, make handrail 1 slide to the inner side wall of guide portion 2 close to the main body 7 of climbing tool one end and connecting piece 3 abut, simultaneously through restraint part 5 to the restraint of handrail 1 lower end, like this, the supporting state of handrail 1 is formed, in this state, handrail 1 is limited by connecting piece 3 and the restraint of restraint part 5 simultaneously, and will not easily appear the phenomenon of shaking.

[0110] It should be noted that: in order to make the stability of handrail 1 in storage state higher, can install bracket on the main body 7 of climbing tool, and hold handrail 1 (refer to Figure 1 And Figure 2 ), under the cooperation of bracket and connecting piece 3, handrail 1 will not move randomly.

[0111] Restraint part 5 can directly select screw, and connecting piece 3 can select the structure that is composed of screw rod and knob cap, and can select other structures.

[0112] In some specific embodiments, the climbing tool further comprises a restraint part 5 arranged on the handrail 1 or the supporting leg 4; when the handrail 1 is in the supporting state, the restraint part 5 acts on the bottom end of the handrail 1 to realize locking positioning.

[0113] Generally, the restraint part 5 can select a bottom-closed cylindrical structure, a sleeve structure with both ends open, and a sheet structure fixed on the supporting leg 4, which can respectively fix the end face and the side wall of the handrail 1, fix the end side wall of the handrail 1, and fix the end face of the handrail 1.

[0114] A first embodiment is provided for the structure of the handrail, as shown in Figures 1-11

[0115] In some embodiments, the constraint component 5 includes a supporting seat 8 arranged on the side of the supporting leg 4, and an insertion cavity 9 matching the shape of the handrail 1 is formed in the supporting seat 8. When the handrail 1 is in the supporting state, the bottom end of the handrail 1 is inserted into the insertion cavity 9 to achieve the locking positioning.

[0116] Specifically, in order to achieve better constraint effect of the constraint component 5 on the handrail 1, when the constraint component 5 is used to constrain the end of the handrail 1 away from the body 7 of the climbing tool, the lower end of the handrail 1 is directly inserted into the insertion cavity 9. After insertion, the supporting seat 8 can play a protective role. However, sometimes the insertion cavity 9 cannot be fully stable, so a anti-shaking pad 10 is arranged in the insertion cavity 9. The anti-shaking pad 10 can prevent the handrail 1 from shaking.

[0117] In some embodiments, the guide part 2 is arranged on the side of the handrail 1, and the connecting part 3 is arranged on the upper end side of the supporting leg 4.

[0118] The guide part 2 is a long slot 6 arranged on the side of the handrail 1, and the connecting part 3 is a sliding block embedded in the long slot 6. The sliding block has a locking mechanism on it to achieve the locking positioning when the connecting part 3 slides in the long slot 6.

[0119] The guide part 2 is arranged as a long slot 6 to cooperate with the connecting part 3. The sliding block can be arranged in various ways, for example, a column structure with a quadrilateral longitudinal section. The locking mechanism can be threadedly connected or connected in other ways with the end of the sliding block, as long as the purpose of fixing the handrail 1 is achieved.

[0120] In some embodiments, the sliding block is a bolt arranged in the long slot 6. One end of the bolt is fixedly connected with the upper end side of the supporting leg 4, and the other end is connected with the locking mechanism. The locking mechanism can move along the axis direction of the bolt.

[0121] The locking mechanism is a nut. The side of the nut opposite to the handrail 1 is formed with an abutting surface. The abutting surface is arranged on the surface of the handrail 1 and located on both sides of the long slot 6.

[0122] Specifically, the following operation mode is provided for the cooperation of the connecting part 3 and the locking mechanism.

[0123] 1. The connecting part 3 is a bolt with a nut. When the connecting part 3 is used, the bolt is inserted through the handrail 1 to achieve the connection purpose. Then the nut is tightened to fix the handrail 1, which achieves the tightening state. (The connecting part 3 is inserted through the long slot 6, and the nut is rotated to achieve the tightening state.)​

[0124] 1-1, the bolt can have nuts on both ends; or one end has a cap, and the other end has a nut structure.

[0125] 2, compared with the embodiment, the embodiment replaces the nut with a knob cover, which has a cavity inside, and the inner wall of the cavity has a thread groove matched with the bolt.

[0126] 3, the bolt side wall is provided with a plug slot with a longitudinal section in the shape of a triangle, and the nut is replaced by a plug matched with the plug slot, and the tightening state can be achieved by moving the plug position in the plug slot.

[0127] Among them, in order to facilitate the cooperation between the connecting piece 3 and the locking mechanism, the operation mode 2 is preferred.

[0128] Some handrails 1 sometimes install some tool boxes 12 to facilitate the storage of tools, but the installed tool boxes 12 not only occupy a certain space, but also protrude from the edge of the handrail 1, which can easily affect the storage of the handrail 1. Therefore, in order to solve this problem, the following solutions are provided, the first solution further comprises a tool box 12 and a fixing piece 11, the tool box 12 is arranged at the upper end of the handrail 1 for storing tools, and the upper end side of the handrail 1 is provided with an adjusting groove 13, and the fixing piece 11 is arranged to rotate the tool box 12 and the handrail 1 through the adjusting groove 13;

[0129] The fixing piece 11 has two states of loosening and tightening, wherein only in the loosening state, the tool box 12 can rotate relative to the handrail 1 in the adjusting groove 13 with the fixing piece 11 as the rotation center.

[0130] When the handrail 1 is in the supporting state, the surface of the tool box 12 in the length direction forms a set angle with the surface of the handrail 1 in the length direction, and the set angle is maintained through the fixing piece 11 in the tightening state, so as to form the working state of the tool box 12.

[0131] It should be noted that the fixing piece 11 and the connecting piece 3 both have a tightening state capable of being locked and positioned.

[0132] Specifically, according to the above-mentioned operation mode of the cooperation between the connecting piece 3 and the locking mechanism, the fixing piece 11 and the connecting piece 3 can be the same structure or different structures, and in this application, both can be operation mode 2, or other operation modes or combinations of operation modes can be selected.

[0133] Specifically, in order to solve the storage problem of the tool box 12, the handrail 1 is first connected with the tool box 12 through the fixing part 11, and then the state of the fixing part 11 can be adjusted according to the state of the tool box 12. When the working state of the tool box 12 is needed, the connecting part 3 is first put into a relaxed state, at this time the handrail 1 is lifted to make the handrail 1 enter a supporting state, then the tool box 12 is turned, the surface in the length direction of the tool box 12 is driven to form a set angle with the surface in the length direction of the handrail 1, and the set angle is maintained through the fixing part 11 in the tightened state. In this case, the operator can place the tool in the tool box 12 without holding it by hand, and the tool box 12 can quickly switch between the working state and the storage state to improve the work efficiency.

[0134] When the storage state is needed, the connecting part 3 is driven from the tightened state to the relaxed state, the handrail 1 is guided to flip to the side of the ladder tool main body 7, for example, the surface of the handrail 1 is parallel to the surface of the ladder tool main body 7, then the fixing part 11 is in the relaxed state, and the tool box 12 is relatively rotated with the handrail 1 until the surface in the length direction of the tool box 12 is parallel to the handrail 1 to form the storage state of the tool box 12.

[0135] In the working state to the storage state, the set angle can be 0° (the surface in the length direction of the tool box 12 is parallel to the surface of the ladder tool main body 7).

[0136] The second solution.

[0137] In some embodiments, it further includes an upper end cover 17, a tool box 12 and a fixing part 11, the tool box 12 is arranged at the upper end of the handrail 1 for storing tools, the upper end cover 17 is installed at the upper end of the handrail 1, and the upper end side wall of the upper end cover 17 is provided with an adjusting groove 13;

[0138] The fixing part 11 connects the tool box 12 and the handrail 1 in rotation through the adjusting groove 13 arranged at the side of the upper end cover 17;

[0139] The fixing part 11 has a relaxed state and a tightened state, and only in the relaxed state, the tool box 12 can relatively rotate with the handrail 1 in the adjusting groove 13 with the fixing part 11 as the rotation center;

[0140] When the handrail 1 is in the supporting state, the surface in the length direction of the tool box 12 forms a set angle with the surface in the length direction of the handrail 1, and the set angle is maintained through the fixing part 11 in the tightened state to form the working state of the tool box 12.

[0141] The second solution is only different from the first solution in that the second solution provides an upper end cover 17, and the adjusting groove 13 can be provided on the upper end cover 17 (advantage: the surface of the tool box 12 is parallel to the surface of the climbing tool main body 7) or on the upper end of the handrail member 1, according to the needs.

[0142] In some embodiments, the adjusting groove 13 is a bending groove with a bending angle of a set angle one, one end of the bending groove is provided with a sliding hole one 16, and the other end is provided with a sliding hole two 15, wherein the sliding hole one 16 can provide horizontal support for the fixing member 11, and the sliding hole two 15 can provide vertical support for the fixing member 11.

[0143] The tool box 12 has a working state and a storage state.

[0144] When the tool box 12 is in the working state, the sliding hole two 15 holds up the fixing member 11 to maintain the position of the tool box 12 in the working state.

[0145] When the tool box 12 is in the storage state, the tool box 12 is rotated to be parallel to the surface of the length direction of the handrail member 1, and the sliding hole one 16 holds the fixing member 11 in the tightened state to maintain the position of the tool box 12.

[0146] Normally, if the adjusting groove 13 is only a round hole structure, the tool box 12 rotates around the fixing member 11 as the center of rotation, and the inner wall of the adjusting groove 13 always provides support. In this case, the inner wall of the adjusting groove 13 is easy to wear, causing the fixing member 11 to shake in the adjusting groove 13. At the same time, when the distance between the opposite ends of the tool box 12 and the handrail member 1 is too close, it is easy to cause the opposite end of the tool box 12 to resist the handrail member 1 during storage, and it is easy to not be stored in place during storage.

[0147] In order to solve the problem of easy wear of the single adjusting groove 13, the fixing member 11 is limited by the bending groove with a bending angle of a set angle one. When the tool box 12 is in the working state, the inner side wall of the sliding hole two 15 holds up the fixing member 11 to maintain the position of the tool box 12 in the working state, and the fixing member 11 in the tightened state further fixes the position of the tool box 12 in the working state. When the tool box 12 is in the storage state, the tool box 12 is rotated to be parallel to the surface of the length direction of the handrail member 1, and the sliding hole one 16 holds the fixing member 11 in the tightened state to maintain the position of the tool box 12.

[0148] In some embodiments, the adjusting groove 13 further includes a vertical groove, the vertical groove is provided in the region between the sliding hole one 16 and the bending point of the bending groove, and the vertical groove and the bending groove are in communication with each other.

[0149] The vertical slot is provided with a sliding hole three 14 away from one end of the bending slot. When the tool box 12 with the fixing part 11 slides from the sliding hole two 15 to the sliding hole three 14, and then moves from the sliding hole three 14 to the sliding hole one 16, the tool box 12 enters the storage state from the working state;

[0150] The sliding hole three 14 can provide the fixing part 11 with vertical support opposite to the sliding hole two 15 to limit the sliding distance of the fixing part 11 in the vertical slot;

[0151] When the fixing part 11 slides from the sliding hole two 15 to the sliding hole three 14, the tool box 12 and the opposite end of the handrail part 1 are away from each other to increase the rotation interval between the tool box 12 and the handrail part 1;

[0152] When the tool box 12 is in the storage state, the surface of the tool box 12 in the length direction is parallel to the surface of the handrail part 1 in the length direction, and the tool box 12 also abuts against the opposite end of the handrail part 1.

[0153] Specifically, the structure of the adjusting slot 13 is preferably T-shaped, which can be referred to Figures 7-8 .

[0154] In order to solve the problem that the tool box 12 abuts against the opposite end of the handrail part 1 during storage, when the fixing part 11 is in the adjusting slot 13, if the tool box 12 needs to enter the storage state from the working state, the movement process of the fixing part 11 in the relaxed state is to slide from the sliding hole two 15 to the sliding hole three 14, and then move from the sliding hole three 14 to the sliding hole one 16. When the fixing part 11 slides from the sliding hole two 15 to the sliding hole three 14, the tool box 12 and the opposite end of the handrail part 1 are away from each other to increase the rotation interval between the tool box 12 and the handrail part 1. The increase of the rotation interval means the increase of the interval between the tool box 12 and the opposite end of the handrail part 1. When the tool box 12 is turned to the storage state, i.e. moves from the sliding hole three 14 to the sliding hole one 16, the surface of the tool box 12 in the length direction can be normally parallel to the surface of the handrail part 1 in the length direction, and the tool box 12 also abuts against the opposite end of the handrail part 1.

[0155] In some specific embodiments, the end side wall of the tool box 12 has a lap joint slot 19 matched with the upper end of the handrail part 1; and the side wall of the tool box 12 is provided with an installation hole 18 matched with the fixing part 11 in diameter.

[0156] The lap joint slot 19 enables the end side wall of the tool box 12 to be fully lapped together with the handrail part 1, and after lapping, the end of the tool box 12 abuts against the handrail part 1, so that more tools can be placed in the tool box 12 without being deformed by the weight, and the slot on the tool box 12 can also be used to hang a larger tool bucket to place more larger tools.

[0157] Specifically, the diameter of the fixing member 11 in the mounting hole 18 is equal to the diameter of the mounting hole 18, so that the fixing member 11 and the tool box 12 cannot shake.

[0158] Working principle: the specific working state of the utility model is divided into two, which are working state and storage state respectively:

[0159] When the working state is: first, the connecting piece 3 is inserted into the guide part 2, then, if it is necessary to enter the use state, the handrail piece 1 is directly guided to rotate around the connecting piece 3 to the side of the ladder climbing tool main body 7, then, the handrail piece 1 is slid to the inner side wall of the side of the ladder climbing tool main body 7 close to the connecting piece 3 abuts, at the same time, the end of the handrail piece 1 away from the ladder climbing tool main body 7 is inserted into the plug-in cavity 9, and after being inserted, the supporting seat 8 can play a protection role, so that the handrail piece 1 support state is formed, in this state, the handrail piece 1 is simultaneously limited by the connecting piece 3 and constrained by the constraint part 5, and the shaking phenomenon does not easily occur.

[0160] Subsequently, the fixing member 11 at the tool box 12 is guided to be in the relaxed state, since the surface in the length direction of the tool box 12 is parallel to the surface in the length direction of the handrail piece 1 when the tool box 12 is in the storage state, therefore, the tool box 12 can be guided to rotate, so that the tool box 12 and the fixing member 11 are displaced from the slide hole one 16 to the slide hole three 14, and then are moved from the slide hole three 14 to the slide hole two 15, so that the surface in the length direction of the tool box 12 and the surface in the length direction of the handrail piece 1 form a set angle, and the set angle is maintained through the fixing member 11 in the tightened state, so as to form the working state of the tool box 12.

[0161] When the storage state is: the connecting piece 3 is driven to enter the relaxed state from the tightened state, the handrail piece 1 is guided to slide out of the supporting seat 8 and is turned to the side of the ladder climbing tool main body 7, for example, the surface of the handrail piece 1 is parallel to the surface of the ladder climbing tool main body 7, at the same time, the movement process of the fixing member 11 in the relaxed state is that the fixing member 11 is slid from the slide hole two 15 to the slide hole three 14, and then is displaced from the slide hole three 14 to the slide hole one 16, when the fixing member 11 is slid from the slide hole two 15 to the slide hole three 14, the opposite end of the tool box 12 and the handrail piece 1 is away from each other to increase the rotating interval between the tool box 12 and the handrail piece 1, the rotating interval is increased, that is, the interval between the opposite end of the tool box 12 and the handrail piece 1 is increased, when the tool box 12 is turned to the storage state, that is, the tool box 12 is displaced from the slide hole three 14 to the slide hole one 16, the surface in the length direction of the tool box 12 can be normally parallel to the surface in the length direction of the handrail piece 1, and the tool box 12 also abuts against the opposite end of the handrail piece 1.

[0162] A second embodiment is provided for the structure of the handrail piece, as shown in Figures 12-21 .

[0163] In some embodiments, the guide part 2 further comprises a guide sleeve 32, which is internally provided with a first channel 33 for accommodating the handrail 1;

[0164] The connecting part 3 further comprises a rotating shaft 34;

[0165] The rotating shaft 34 serves as a rotating center part for switching the guide sleeve 32 and the handrail 1 between the folded and erected states;

[0166] One end of the rotating shaft 34 is fixedly connected with the circumferential surface of the guide sleeve 32; the side part of the supporting leg 4 is provided with a first arc hole 35, the other end of the rotating shaft 34 is positioned in the first arc hole 35, and a nut sleeve is positioned and connected at the penetrating end of the rotating shaft 34, so as to limit the axial direction of the rotating shaft 34.

[0167] With the above design, the cooperation of the guide sleeve 32 and the rotating shaft 34 can fully switch the handrail between the folded and erected states, and during the switching process, the handrail can not shake randomly due to the limitation of the guide sleeve 32 by being inserted into the first channel 33.

[0168] Further technical solutions, the side part of the supporting leg 4 is provided with a stabilizing column 36 beside the rotating shaft 34;

[0169] The surface of the guide sleeve 32 is provided with a second arc hole 37 at the corresponding position of the stabilizing column 36, the stabilizing column 36 and the second arc hole 37 are matched, and when the guide sleeve 32 is positioned and connected to the side part of the supporting leg 4 through the rotating shaft 34, the stabilizing column 36 is configured to be positioned in the second arc hole 37;

[0170] The center of the second arc hole 37 is on the axis of the rotating shaft 34;

[0171] The two ends of the second arc hole 37 are respectively provided with a first bearing surface 38 and a second bearing surface 39; the first bearing surface 38 is used to provide vertical support for the guide sleeve 32; the second bearing surface 39 is used to provide horizontal support for the guide sleeve 32;

[0172] When the handrail 1 is in the erected state, the first bearing surface 38 holds the position of the handrail 1 by supporting the stabilizing column 36;

[0173] When the handrail 1 is in the folded state, the second bearing surface 39 holds the position of the handrail 1 parallel to the highest tread surface 27 by supporting the stabilizing column 36.

[0174] Since the guide sleeve 32 needs to rotate, the stability of the handrail rod in the folding and supporting states is further ensured through the cooperation of the stabilizing column 36 and the second arc hole 37.

[0175] The specific operation of rotating the guide sleeve 32 is as follows:

[0176] First, abut the guide sleeve 32 welded with the rotating shaft 34 with the upper end side wall of the supporting leg 4. When abutting, the rotating shaft 34 needs to be positioned in the first arc hole 35, and a nut sleeve is further connected to the end of the rotating shaft 34, which is used to limit the axis direction of the rotating shaft 34.

[0177] Then, the guide sleeve 32 can be guided to rotate;

[0178] Since the rotation of the guide sleeve 32 is driven by the handrail rod, the rotation of the guide sleeve 32 indicates that the handrail rod has rotated. Therefore, the following is described from the perspective of the guide sleeve 32 that the guide sleeve 32 and the handrail rod have rotated together.

[0179] When the guide sleeve 32 deflects around the rotating shaft 34 as the center, once the handrail rod is in the supporting state, the first bearing surface 38 supports the stabilizing column 36 to maintain the position of the handrail rod standing up; once the handrail rod is in the folding state, the second bearing surface 39 supports the stabilizing column 36 to maintain the end position of the handrail rod parallel to the highest tread surface 27.

[0180] Further technical solutions, the inner side wall of the first channel 33 is provided with a protruding part 40;

[0181] The peripheral side of the handrail 1 is provided with a recessed part 41 matched with the protruding part 40, and the recessed part 41 is arranged along the length direction of the handrail 1;

[0182] When the first channel 33 contains the handrail 1, the protruding part 40 is configured to be embedded in the recessed part 41.

[0183] With the above design, the handrail rod has higher stability when sliding up and down.

[0184] Specifically, when the handrail rod is inserted into the first channel 33, the protruding part 40 is embedded in the recessed part 41, so that the handrail rod can only move along the length direction of the handrail rod when sliding up and down. Once deflection occurs, the protruding part 40 will abut against the inner wall of the recessed part 41, so that the handrail rod has higher stability.

[0185] Further technical solutions,

[0186] The recessed part 41 is positioned and connected with a first locking part 42 and a second locking part 43;

[0187] When the handrail 1 is in the unfolded state:

[0188] The second locking member 43 is arranged near the lower end of the handrail 1;

[0189] The second locking member 43 serves as an upper sliding control part for controlling the upper sliding trend of the handrail 1 after the handrail 1 slides along the guide sleeve 32 by a certain distance;

[0190] The first locking member 42 is arranged above the second locking member 43;

[0191] The first locking member 42 serves as a lower sliding control part for controlling the lower sliding trend of the handrail 1 after the handrail 1 slides along the guide sleeve 32 by a certain distance.

[0192] With the above design, the handrail rod stops moving after reaching a certain position during the up and down sliding process, and does not fall.

[0193] The first locking member 42 and the second locking member 43 have the same structure, as shown in Figure 2 、 Figure 3 The first locking member 42 and the second locking member 43 are both composed of a stop block and a screw for fixing the stop block, but are not limited to this structure, and can be only a screw or a stop block bonded by glue.

[0194] Further technical solutions, the constraint part 5 further comprises a constraint sleeve 44 connected to the side of the support leg 4 and below the connecting member 3, the constraint sleeve 44 has a second channel accommodating the lower end of the handrail 1 in the unfolded state, and the inner side surface of the second channel is the constraint surface 29;

[0195] The inner side wall of the second channel is provided with an avoiding groove 45 at the corresponding position of the recess 41, so as to avoid the second locking member 43.

[0196] With the above design, the constraint part 5 does not limit the sliding of the handrail rod when limiting the deflection of the handrail rod.

[0197] The operation of locking the position of the handrail rod is:

[0198] When the unfolded state is switched to the folded state, the lower part of the handrail rod is separated from the constraint surface 29, i.e. slides out of the second channel, and slides up through the guide of the guide part 2, and after the handrail rod slides along the first channel 33 in the guide sleeve 32 by a certain distance, at this time, the second locking member 43 abuts against the protruding part 40, so that the upper sliding trend of the handrail rod is controlled.

[0199] When the handrail rod is erected after being deflected by a set angle with the connecting piece 3 as the rotation center, the handrail rod is pushed to slide downward. When the lower end of the handrail rod is inserted into the second channel, the lower part of the handrail rod is limited by the constraint surface 29, and the first locking piece 42 abuts against the protruding part 40, so that the tendency of the handrail rod to slide downward is controlled.

[0200] In the two processes, the second locking piece 43 is avoided when the handrail rod slides upward and downward due to the existence of the avoidance groove 45, and the phenomenon that the second channel cannot be inserted or pulled out does not occur.

[0201] Further technical solutions, the supporting piece 24 includes a first supporting block 46 and a second supporting block 21.

[0202] The first supporting block 46 and the second supporting block 21 are located and connected to the side of the climbing tool body 7.

[0203] The first supporting block 46 and the second supporting block 21 are located and connected to the side of the climbing tool body 7.

[0204] The inner side wall of the clamping groove is the supporting surface 28.

[0205] The handrail rod can be directly clamped into the supporting surface 28, but it is easy to shake.

[0206] With the above design, the stability of the handrail rod on the side of the climbing tool body 7 is higher.

[0207] Further technical solutions, the side surface of the climbing tool body 7 opposite to the highest tread surface 27 has an installation groove 31.

[0208] The first supporting block 46 is provided with a fixing block 30 away from the clamping groove, and the fixing block 30 is arranged along the length direction of the climbing tool body 7.

[0209] The supporting piece 24 further includes a clamping piece 26.

[0210] The clamping piece 26 includes a locking pin 25, an elastic piece 20, and a pushing bar 23. The pushing bar 23 is arranged on the fixing block 30, and the pushing bar 23 is arranged perpendicularly to the fixing block 30 and can move along the axis direction of the through hole on the fixing block 30. The end of the pushing bar 23 has a bending part extending to the installation groove 31 in the direction of the climbing tool body 7.

[0211] The locking pin 25 is arranged correspondingly to the first supporting block 46, and one end of the locking pin 25 is arranged in the inner wall of the installation groove 31 and the first supporting block 46 until the clamping groove.

[0212] The other end of the locking pin 25 is in position connection with the bent part;

[0213] The elastic member 20 acts between the bent part and the inner wall of the mounting groove 31, and is arranged along the axial direction of the locking pin 25, so that the bent part has a tendency to push the locking pin 25 to be always in the clamping groove.

[0214] With the above design, when the handrail rod is at the side of the climbing tool body 7, it can be limited in position by the clamping part 26, that is, the handrail rod is prevented from moving freely in the storage state.

[0215] Further technical solutions, the handrail rod side wall has a locking hole 22; when the handrail rod abuts against the bearing surface 28, the penetrating end of the locking pin 25 is embedded in the locking hole 22.

[0216] With the above design, the handrail rod can be further limited by the locking hole 22 cooperating with the locking pin 25.

[0217] Although the shaking is solved, it is still easy to slide in the bearing surface 28, so the problem is solved by the cooperation of the locking pin 25 and the locking hole 22.

[0218] The specific operation is as follows:

[0219] When the handrail rod enters the clamping groove, it will first push away the locking pin 25, so that the elastic member 20 (such as a spring, a tension spring) starts to store energy, and then when the handrail rod fully contacts the bearing surface 28, the penetrating end of the locking pin 25 is embedded in the locking hole 22 to realize locking, and at the same time the elastic member 20 resets and pushes the locking pin 25 to be always in the clamping groove.

[0220] Then, once the handrail rod needs to be lifted, the end of the push rod 23 (such as Figure 10 As shown, a pressing head can be installed at the end of the push rod 23), so that the push rod 23 with the bent part thereon moves away from the clamping groove, and then the bent part pulls the elastic member 20 to start storing energy, and at the same time the bent part also pulls the penetrating end of the locking pin 25 out of the locking hole 22, so that the locking of the handrail rod is released.

[0221] Then release the push rod 23, and the elastic member 20 pulls the locking pin 25 and the push rod 23 back to the original position.

[0222] Further technical solutions, the bearing part 24 includes a first bearing block 46 and a second bearing block 21;

[0223] The circumferential side of the climbing tool body 7 is at least in position connection with the first bearing block 46 and the second bearing block 21;

[0224] The first supporting block 46 and the second supporting block 21 are provided with a clamping groove on the side surface away from the ground.

[0225] The inner side wall of the clamping groove is the supporting surface 28.

[0226] With the above design, when the handrail rod is on the side of the climbing tool body 7, the stability is higher.

[0227] Further, the side surface of the climbing tool body 7 opposite to the highest tread surface 27 is provided with a mounting groove 31.

[0228] The side of the first supporting block 46 away from the clamping groove is provided with a fixing block 30, and the fixing block 30 is arranged along the length direction of the climbing tool body 7.

[0229] The supporting member 24 further comprises a clamping member 26.

[0230] The clamping member 26 comprises a locking pin 25, an elastic member 20 and a pushing bar 23, the pushing bar 23 is arranged on the fixing block 30, the pushing bar 23 is arranged perpendicularly to the fixing block 30 and can move along the axis direction of the through hole on the fixing block 30, and the end of the pushing bar 23 is provided with a bending part extending into the mounting groove 31 in the direction of the climbing tool body 7.

[0231] The locking pin 25 is arranged correspondingly to the first supporting block 46, and one end of the locking pin 25 is arranged in the inner wall of the mounting groove 31 and the first supporting block 46 until it enters the clamping groove.

[0232] The other end of the locking pin 25 is positioned and connected with the bending part.

[0233] The elastic member 20 acts between the bending part and the inner wall of the mounting groove 31, and the elastic member 20 is arranged along the axis direction of the locking pin 25, so that the bending part has a tendency to push the locking pin 25 to be always in the clamping groove.

[0234] With the above design, when the handrail rod is on the side of the climbing tool body 7, the position can be limited by the clamping member 26, that is, the handrail rod is prevented from moving freely in the storage state.

[0235] Further, the side wall of the handrail rod is provided with a locking hole 22, and when the handrail rod abuts against the supporting surface 28, the through end of the locking pin 25 is embedded in the locking hole 22.

[0236] With the above design, the handrail rod can be further limited by the locking hole 22 cooperating with the locking pin 25.

[0237] Working principle:

[0238] First, the guide sleeve 32 welded with the rotating shaft 34 is in contact with the side wall of the upper end of the support leg 4. At the time of contact, the rotating shaft 34 needs to be positioned in the first arc hole 35, and a nut sleeve is connected to the end of the rotating shaft 34, which is used to limit the axis direction of the rotating shaft 34. At the same time, the handrail rod is inserted into the first channel 33 and the second channel.

[0239] The handrail rod can be switched between the folded and erected states to realize the functions of assisting climbing and increasing the highest tread surface 27.

[0240] Therefore, in use, the climbing tool main body 7 is directly erected by the support leg 4, and then the folded handrail rod is erected, that is, the folded state is switched to the erected state.

[0241] At this time, the handrail rod is deflected by a certain angle with the rotating shaft 34 as the center and is erected, and then the handrail rod is pushed to slide down. When the lower end of the handrail rod is inserted into the second channel, the lower part of the handrail rod is limited by the restraint surface 29, and the first locking part 42 is in contact with the protruding part 40, so that the sliding trend of the handrail rod is controlled. At this time, the upper part of the erected handrail rod exceeds the highest tread surface 27, and the lower part is in contact with the restraint surface 29, and the deflection trend of the handrail rod is controlled by the restraint surface 29, so that the handrail rod is used as a component for assisting climbing.

[0242] If it is necessary to increase the highest tread surface 27, that is, the erected state is switched to the folded state.

[0243] The lower part of the handrail rod is separated from the restraint surface 29, that is, slides out of the second channel, and is guided to slide up by the guide part 2. After the handrail rod slides up along the first channel 33 in the guide sleeve 32 by a certain distance, at this time, the second locking part 43 is in contact with the protruding part 40, so that the sliding trend of the handrail rod is controlled.

[0244] Subsequently, the handrail rod is deflected by a certain angle with the rotating shaft 34 as the center and is located at the side of the climbing tool main body 7. The supporting surface 28 is in contact with the surface of the handrail rod and is used as a limiting part for controlling the deflection trend of the handrail rod. At this time, the surface of the handrail rod away from the supporting surface 28 is configured to be parallel to the highest tread surface 27, so that the handrail rod is used as a component for increasing the highest tread surface 27.

[0245] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable persons 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 handrail structure of a climbing aid, the climbing aid comprising a climbing aid body (7) comprising a highest tread surface (27) and support legs (4), characterised in that: The handrail structure comprises a handrail (1) and a rotating module; The rotating module is arranged between the handrail (1) and the supporting leg (4) to make the handrail (1) rotate and slide relative to the supporting leg (4), so that the handrail (1) has a supporting state and a storage state; When the handrail (1) is in the supporting state, the handrail (1) extends upward to exceed the highest tread surface (27); when the handrail (1) is in the storage state, the handrail (1) is turned to the side of the highest tread surface (27).

2. The handrail structure of a climbing aid according to claim 1, characterized in that: The rotating module comprises a connecting piece (3) and a guide part (2), one of the connecting piece (3) and the guide part (2) is arranged on the handrail (1), and the other is arranged on the side of the supporting leg (4).

3. The handrail structure of a climbing aid according to claim 2, characterized in that: The climbing tool further comprises a restraining component (5) arranged on the handrail (1) or the supporting leg (4); when the handrail (1) is in the supporting state, the restraining component (5) acts on the bottom end of the handrail (1) to realize locking positioning.

4. The handrail structure of a climbing aid according to claim 3, characterized in that: The restraining component (5) comprises a supporting seat (8) arranged on the side of the supporting leg (4), and an insertion cavity (9) matched with the shape of the handrail (1) is formed in the supporting seat (8); when the handrail (1) is in the supporting state, the bottom end of the handrail (1) is inserted into the insertion cavity (9) to realize locking positioning.

5. The handrail structure of a climbing aid according to claim 2 or 4, characterized in that: The guide part (2) is arranged on the side of the handrail (1), and the connecting piece (3) is arranged on the side of the upper end of the supporting leg (4); The guide part (2) is a long slot (6) arranged on the side of the handrail (1), and the connecting piece (3) is a sliding block embedded in the long slot (6), and the sliding block is provided with a locking mechanism to lock the position when the connecting piece (3) slides in the long slot (6).

6. The handrail structure of a climbing aid according to claim 5, characterized in that: The sliding block is a bolt threaded in the long slot (6), and the locking mechanism is a nut; the bolt and the nut are matched and locked.

7. The handrail structure of a climbing aid according to claim 2, characterized by: The guide part (2) is a guide sleeve (32), and a first channel (33) for accommodating the handrail (1) is arranged in the guide sleeve (32); The connecting piece (3) is a rotating shaft (34) arranged between the guide sleeve (32) and the climbing tool body (7), and the rotating shaft (34) serves as a rotating center part for switching the folding and supporting states of the guide sleeve (32) and the handrail (1).

8. The handrail structure of the climbing tool according to claim 7, wherein: A stabilizing column (36) is arranged beside the rotating shaft (34) on the side of the climbing tool body (7); A second arc hole (37) is arranged on the surface of the guide sleeve (32) at a position corresponding to the stabilizing column (36); The center of the second arc hole (37) is on the axis of the rotating shaft (34); The two ends of the second arc hole (37) are respectively provided with a first bearing surface (38) and a second bearing surface (39); When the handrail (1) is in the supporting state, the first bearing surface (38) holds the position of the handrail (1) by supporting the stabilizing column (36); and When the handrail (1) is in the folding state, the second bearing surface (39) holds the position of the handrail (1) by supporting the stabilizing column (36). When the handrail piece (1) is in the folded state, the second bearing surface (39) holds the handrail piece (1) in the folded position by lifting the stabilizing column (36).

9. The handrail structure of a climbing aid according to claim 8, characterized in that: The inner side wall of the first channel (33) is provided with a protrusion (40); The periphery of the handrail piece (1) is provided with a recess (41) matched with the protrusion (40), and the recess (41) is arranged along the length direction of the handrail piece (1); When the first channel (33) contains the handrail piece (1), the protrusion (40) is configured to be embedded in the recess (41).

10. The handrail piece structure of the climbing aid according to claim 9, characterized in that: The recess (41) is positioned and connected with a first locking piece (42) and a second locking piece (43); When the handrail piece (1) is in the unfolded state: The second locking piece (43) is configured to be arranged on the side close to the lower end of the handrail piece (1); The second locking piece (43) serves as an upper sliding control part for controlling the upper sliding trend of the handrail piece (1) after the handrail piece (1) slides a certain distance along the guide sleeve (32); The first locking piece (42) is arranged above the second locking piece (43); The first locking piece (42) serves as a lower sliding control part for controlling the lower sliding trend of the handrail piece (1) after the handrail piece (1) slides a certain distance along the guide sleeve (32).

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