Climbing ladder foot vessel capable of automatically returning after overturning

Abstract

The utility model discloses a climbing ladder foot vessel capable of automatically returning after overturning. The climbing ladder foot vessel comprises a foot vessel piece, a connecting shaft and an elastic piece, the foot vessel pieces are arranged at the bottom ends of the supporting legs, hinge holes are formed in the foot vessel pieces, and limiting holes are correspondingly formed in the bottom ends of the supporting legs; the connecting shaft penetrates through the hinge hole of the foot vessel part and the limiting hole of the supporting leg, and the foot vessel part is hinged to the bottom end of the supporting leg, so that the foot vessel part has a supporting state and a storage state; the limiting hole is provided with an upper stop point and a lower stop point; abutting grooves matched with the supporting legs are formed in the bottom ends, corresponding to the supporting legs in the supporting state, of the foot vessel pieces; the connecting shafts arranged in the limiting holes are matched with the foot vessel pieces, the foot vessel pieces can be freely switched between the use state and the storage state, in the free switching process, the foot vessel pieces rotate towards one side of the workbench, so that the situation that foot vessels are exposed on the side edge of the workbench is avoided, and due to the storage mode, the service life of the foot vessel pieces is prolonged, and the service life of the foot vessel pieces is prolonged. The foot vessel piece does not need to be disassembled, and the installation cost of repeated disassembly and assembly is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of foot dish for climbing ladder, concretely relates to a turnover automatic return's climbing ladder foot dish. BACKGROUND

[0002] Climbing ladder, common climbing ladder has, such as workbench also called operation platform, is a commonly used climbing operation tool, is mainly used for providing a work platform higher than ground, for user to stand, to facilitate the operation such as washing car. Workbench can not only be used indoors, but also can be used outdoors, can be used for washing car, decoration, maintenance, taking and placing objects, etc.

[0003] Most of the existing workbenches have four foot dishes fixed on the workbench pillars and cannot be moved. In order to not affect the packaging size, the foot dishes are relatively small, which affects the stability of the product, as shown in Figure 1 and Figure 2 Some workbenches pull apart the distance of the foot dishes to improve the stability of the product, which is much larger than the width of the workbench surface.

[0004] Typically, in the prior art, such as Chinese patent document with application number CN201720873388.5, it discloses a workbench with telescopic ladder columns and foot dishes, which can adjust the ground clearance of the platform through telescopic ladder columns, has the advantages of smaller size after storage and wider application range; also can adjust the support width from the ground through telescopic leg dishes, has the advantages of high support stability and safety.

[0005] The technical solution disclosed in the above patent document is to pull apart the distance of the foot dishes, but this method has limitations in specific operation, as follows:

[0006] 1. As shown in Figure 2 , using such telescopic foot dishes, although the support width from the ground can be adjusted through telescopic means, sometimes the workbench or support leg side will have foot dishes exposed when the foot dishes are retracted to the maximum extent, which will increase the packaging size;

[0007] 2. If the foot dishes are removed during packaging and installed during use, the problem of the workbench or support leg side having foot dishes exposed, leading to increased packaging size, can be solved, but such repeated installation is high in cost.

[0008] Therefore, how to solve the above-mentioned problems in the prior art has become the subject to be studied and solved by the utility model. UTILITY MODEL CONTENTS

[0009] The utility model provides a kind of climbing ladder utensil foot dish of turnover automatic return, to solve the above background technique and propose retractable foot dish, when retraction, it is easy to appear that workbench side has foot dish exposure thereby influence packaging size and repetitive disassembly and installation cost high problem.

[0010] To achieve the above object, the first aspect of the utility model provides a kind of climbing ladder utensil foot dish of turnover automatic return, including foot dish piece, connecting shaft and elastic piece;

[0011] The foot dish piece is arranged at the bottom end of the supporting leg, and the foot dish piece is provided with a hinge hole, and a limiting hole is formed on the bottom end of the supporting leg corresponding to the hinge hole;

[0012] The connecting shaft passes through the hinge hole of the foot dish piece and the limiting hole of the supporting leg, and the foot dish piece is hinged to the bottom end of the supporting leg, so that the foot dish piece has a supporting state and a storage state;

[0013] The limiting hole has an upper stop point and a lower stop point;

[0014] The bottom end of the supporting leg corresponding to the supporting state is provided with a abutting groove matched therewith on the foot dish piece;

[0015] The elastic piece acts on the connecting shaft, forcing the connecting shaft to have a downward trend from the lower stop point to the upper stop point, and then the bottom end of the supporting leg is inserted into the abutting groove for limiting;

[0016] When used, under the action of external force, overcome the elastic force of the elastic piece, the bottom end of the supporting leg is separated from the abutting groove during the sliding of the connecting shaft from the upper stop point to the lower stop point, and the foot dish piece is turned to the storage state inside the supporting leg, and after the external force is removed, the connecting shaft is kept at the position of the upper stop point by the traction of the elastic force of the elastic piece.

[0017] Further, the limiting hole is a long strip-shaped hole along the length direction of the supporting leg.

[0018] Further, the supporting leg has a cavity, and the supporting leg is provided with a stabilizing piece located in the cavity at one end away from the workbench, to limit the axial displacement of the connecting shaft in the limiting hole.

[0019] Further, the stabilizing piece includes an end cap body, the end cap body is matched with the cross-sectional shape of the supporting leg and embedded into the bottom end of the supporting leg, the supporting leg has recesses on both sides, and the end cap body is provided with stabilizing blocks on both sides, which are matched with the recesses and can move with the end cap body and be embedded into the recesses respectively.

[0020] Further, the end cap body inserted into the cavity has a containing groove at one end, and the containing groove is matched with the elastic piece to limit the elastic piece.

[0021] Further, the foot dish member is provided with a limiting groove, and the abutting groove is arranged at the groove bottom of the limiting groove. When the foot dish member is in the storage state, the two inner side walls of the limiting groove are arranged in close contact with the opposite side surfaces of the two stabilizing blocks, respectively.

[0022] Further, the limiting groove is arranged on the surface of the foot dish member, and the opening one and the opening two are arranged at the two ends of the limiting groove along the rotation direction of the foot dish member. The abutting strips are arranged in the opening one and are fixed to the groove bottom of the limiting groove. The abutting groove is formed between the end of the abutting strip close to the opening two and the opening two.

[0023] The end of the abutting strip close to the opening two is provided with a deflection surface.

[0024] Further, the side surface of the abutting strip away from the groove bottom of the limiting groove is flush with the bottom of the opening two.

[0025] When the foot dish member rotates around the connecting shaft to the state that the surface in the length direction of the foot dish member is parallel to the surface of the supporting leg, the bottom of the opening two is in abutment with the surface of the supporting leg.

[0026] Further, the two ends of the elastic member are provided with the hanging hooks.

[0027] The inner side wall of the cavity is provided with the hanging points. One of the hanging hooks is connected with the hanging point, and the other hanging hook is connected with the connecting shaft.

[0028] Further, the hanging point is the hanging hole arranged on the inner side wall of the cavity. The inner side wall of the hanging hole is provided with the anti-skid points to limit the position of the hanging hook connected in the hanging point.

[0029] As for the "first", "second", etc. used herein, it does not mean to particularly indicate the order or sequence, nor to limit the present case. It is only for distinguishing the components or operations described by the same technical terms.

[0030] 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 are indirectly in physical contact with each other. It can also mean that two or more components or devices are in operation or action with each other.

[0031] As for the "contain", "include", "have", etc. used herein, it is an open term, which means to include but not limited to.

[0032] As for the words (terms) used herein, except for special indications, they generally have the usual meanings of each word used in this field, in the content of the present case, and in the special content. Some words used to describe the present case will be discussed below or elsewhere in the specification to provide additional guidance for those skilled in the art on the description of the present case.

[0033] As for the "front", "back", "upper", "lower", "left", "right" and the like used herein, they are directional words, which are only used to describe the positional relationship between structures in the case, and are not used to limit the specific direction of the protection scheme and actual implementation.

[0034] The working principle and advantages of the utility model are as follows:

[0035] The utility model discloses a cooperation of the connecting shaft set in the limiting hole and the foot stool piece, realizes the free exchange of the foot stool piece in the supporting state and the storage state, specifically, when the foot stool piece is in the supporting state, the connecting shaft is in the upper stop point, and the abutting groove on the foot stool piece abuts against the supporting leg, that is, the foot stool piece is pressed on the ground, so that the bearing capacity of the bottom of the supporting leg is larger, and when storage is needed, the guiding connecting shaft slides to the lower stop point at the upper stop point, in the process, the connecting shaft is used as the rotating center to drive the foot stool piece to turn to the inside of the supporting leg, to enter the storage state of the foot stool piece, and through the traction of the elastic piece, the connecting shaft is kept in the position of the upper stop point again, in the process, the foot stool piece is rotated to the side of the workbench, so that the foot stool does not appear on the side of the workbench, and the storage mode does not need to disassemble the foot stool piece, and the installation cost of repetitive disassembly and assembly is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a structure schematic view that the prior art foot stool piece is fixed on the supporting leg;

[0037] Figure 2 It is a structure schematic view that the prior art telescopic foot stool piece is connected with the supporting leg;

[0038] Figure 3 It is a structure schematic view that the foot stool piece in the utility model is connected with the supporting leg;

[0039] Figure 4 It is a structure schematic view that the foot stool piece in the utility model is stored;

[0040] Figure 5 It is an explosion structure schematic view of the supporting leg in the utility model;

[0041] Figure 6 It is a hanging hole structure schematic view in the utility model;

[0042] Figure 7 It is a structure schematic view that the supporting leg and the abutting groove groove bottom abut in the utility model;

[0043] Figure 8 It is a structure schematic view that the connecting shaft in the utility model moves from the upper stop point to the lower stop point;

[0044] Figure 9The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish.

[0045] Figure 10 The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish.

[0046] Figure 11 The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish.

[0047] Figure 12 The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish.

[0048] Figure 13 The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish.

[0049] Figure 14 The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish. Figure 12 The structure schematic view of the support leg and the foot dish in the utility model is parallel to the surface in the length direction of the foot dish.

[0050] In the above drawings: 1, support leg; 2, limiting hole; 3, cavity; 4, connecting shaft; 5, elastic piece; 6, foot dish; 7, abutting groove; 8, upper stop point; 9, lower stop point; 10, recess; 11, end cover body; 12, stabilizing block; 13, limiting groove; 14, accommodating groove; 15, hanging hook; 16, hanging hole; 17, anti-skid point; 18, opening one; 19, opening two; 20, abutting strip; 21, deflection surface. DETAILED DESCRIPTION

[0051] The utility model will be further described below in combination with the drawings and examples:

[0052] Examples: the present case will be clearly explained by the drawings and detailed description, and any person skilled in the art can change and modify 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.

[0053] The terms in this paper are only for describing specific embodiments and are not intended to limit the present case. The singular form such as "a", "this", "this", "this" and "the" as used herein also includes the plural form.

[0054] As shown in Figures 1-14 The utility model embodiment one proposes a kind of foot dish of turning over automatic return of climbing ladder, including foot dish 6, connecting shaft 4 and elastic piece 5;

[0055] Foot dish 6 is arranged at the bottom end of support leg 1, and limiting hole 2 is correspondingly set on the bottom end of support leg 1 on foot dish 6, which is prior art, and specific reference can be made to Figure 1 And Figure 2In the case of the display, the Chinese patent document with application number CN201720873388.5 can also be selected, which discloses a support leg 1 in a workbench with both telescopic ladder columns and foot plates. Generally, at least two support legs 1 are provided, preferably four, arranged in pairs. The following example will be described with one support leg 1.

[0056] The connecting shaft 4 passes through the hinge hole of the foot plate member 6 and the limiting hole 2 of the support leg 1, and the foot plate member 6 is hinged to the bottom end of the support leg 1, so that the foot plate member 6 has a supporting state and a storage state; (generally, the connecting shaft 4 can be selected as a bolt, a pin, a shaft or a rivet, and the specific use is selected according to the needs).

[0057] The limiting hole 2 has an upper stop point 8 and a lower stop point 9;

[0058] The bottom end of the support leg 1 is provided with a corresponding abutting groove 7 on the foot plate member 6 in the supporting state;

[0059] The elastic member 5 acts on the connecting shaft 4, forcing the connecting shaft 4 to have a downward trend from the lower stop point 9 to the upper stop point 8, and then the bottom end of the support leg 1 is inserted into the abutting groove 7 for limiting; (the elastic member 5 can be selected as a tension spring, or other linear mechanisms capable of generating elasticity, such as tension springs, elastic ropes or elastic sheets, etc.).

[0060] When in use, under the action of external force, the elastic force of the elastic member 5 is overcome, and in the process of the connecting shaft 4 sliding from the upper stop point 8 to the lower stop point 9, the bottom end of the support leg 1 is separated from the abutting groove 7, and the foot plate member 6 is flipped to the storage state inside the support leg 1, and after the external force is removed, the connecting shaft 4 is kept at the position of the upper stop point 8 by the elastic force of the elastic member 5.

[0061] The present utility model can realize the free exchange of the foot plate member 6 between the supporting state and the storage state through the cooperation of the connecting shaft 4 provided in the limiting hole 2 and the foot plate member 6. Specifically, when the foot plate member 6 is in the supporting state, the connecting shaft 4 is at the upper stop point 8, and the abutting groove 7 on the foot plate member 6 abuts against the support leg 1, that is, the foot plate member 6 is pressed on the ground, so that the bearing capacity of the bottom of the support leg 1 is larger; when storage is needed, the connecting shaft 4 is guided to slide from the upper stop point 8 to the lower stop point 9, and in this process, the foot plate member 6 is flipped inside the support leg 1 with the connecting shaft 4 as the center (specifically, the flipping center can be preferably rotated to the side of the support leg 1 close to the workbench until the surface of the foot plate member 6 in the length direction is parallel to the support leg 1), so as to enter the storage state of the foot plate member 6, and the elastic force of the elastic member 5 is used to pull the connecting shaft 4 to keep it at the position of the upper stop point 8 again. In this process, the foot plate member 6 is rotated towards the side of the workbench, so it will not appear that the foot plate is exposed on the side of the workbench, and this storage method does not need to disassemble the foot plate member 6, reducing the installation cost of repeated disassembly and assembly.

[0062] With the workbench as the reference, the inner side (i.e. the area between the two support legs 1) is directly below, that is, when the foot plate 6 is flipped to the inner side, it is flipped to the inner side when it is flipped to the outer side, and it is flipped to the outer side when it is flipped to the outer side.

[0063] In some embodiments, the limiting hole 2 is a long strip-shaped hole arranged along the length direction of the support leg 1. The limiting hole 2 is arranged in this way to fix the movement direction and trajectory of the connecting shaft 4, so that the connecting shaft 4 does not deviate.

[0064] In order to prevent the foot plate 6 from moving along the axis direction of the connecting shaft 4 during rotation, the support leg 1 has a cavity 3, and the end of the support leg 1 away from the workbench is provided with a stabilizing piece in the cavity 3, so as to limit the axial displacement of the connecting shaft 4 in the limiting hole 2.

[0065] In some embodiments, the stabilizing piece includes an end cover body 11, which is arranged to match the cross-sectional shape of the support leg 1 and is embedded into the bottom end of the support leg 1. The support leg 1 has recesses 10 on both sides, and the end cover body 11 has stabilizing blocks 12 on both sides, which are arranged to match the recesses 10 and can move with the end cover body 11 and are respectively embedded into the two recesses 10.

[0066] The specific working method of limiting the axial displacement of the connecting shaft 4 in the limiting hole 2 is as follows:

[0067] The end cover body 11 is directly inserted into the bottom end of the support leg 1. Since the end cover body 11 is arranged to match the cross-sectional shape of the support leg 1 and the stabilizing blocks 12 are arranged to match the recesses 10, the end cover body 11 will not move randomly in the cavity 3 after being inserted. When the stabilizing blocks 12 are inserted into the recesses 10, the limiting holes 2 on the surface of the stabilizing blocks 12 will coincide with the limiting holes 2 on the support leg 1. In this case, by controlling the distance between the abutting groove 7 and the surface on the opposite side of the two stabilizing blocks 12 to be equal (there is a small gap, or a nut or other component is directly arranged at both ends of the connecting shaft 4, which can also control the axial movement of the connecting shaft 4), the axial movement of the connecting shaft 4 can be inhibited.

[0068] In order to prevent the elastic piece 5 from deviating in position when driving the connecting shaft 4 to slide along the limiting hole 2, the end of the end cover body 11 inserted into the cavity 3 has a receiving groove 14, which is arranged to correspond to the elastic piece 5, so as to limit the elastic piece 5.

[0069] In some embodiments, the foot plate 6 has a limiting groove 13, and the abutting groove 7 is arranged at the groove bottom of the limiting groove 13. When the foot plate 6 is in the storage state, the two inner side walls of the limiting groove 13 are arranged to abut the surface on the opposite side of the two stabilizing blocks 12 (for details, please refer to Figure 4 ,Figure 6 and Figure 9 ).

[0070] Here, the groove width of the limiting groove 13 can be just fitted with the opposite side surfaces of the two stabilizing blocks 12 (or the groove width of the limiting groove 13 can be greater than the distance between the opposite side surfaces of the two stabilizing blocks 12), in which case, axial displacement of the connecting shaft 4 in the limiting hole 2 can be prevented.

[0071] In order to prevent the foot pan 6 from being blocked by the support leg 1 when it is turned over, in some embodiments, the limiting groove 13 is provided on the surface of the foot pan 6, and opening one 18 and opening two 19 are respectively provided at the two ends of the limiting groove 13 along the rotation direction of the foot pan 6. A plurality of abutting strips 20 are provided in opening one 18 and are fixed to the groove bottom of the limiting groove 13. An abutting groove 7 is formed between the end of the abutting strip 20 close to opening two 19 and opening two 19.

[0072] The end of the abutting strip 20 close to opening two 19 is provided with a deflection surface 21.

[0073] In order to prevent the foot pan 6 from shaking after it is turned over to the inside, the foot pan 6 can be limited, and in some embodiments, the side surface of the abutting strip 20 away from the groove bottom of the limiting groove 13 is flush with the bottom of opening two 19.

[0074] When the foot pan 6 is rotated about the connecting shaft 4 to a position where the surface in the length direction of the foot pan 6 is parallel to the support leg 1, the bottom of opening two 19 abuts against the surface of the support leg 1.

[0075] Reference Figures 7-9 and in combination with the use of the foot pan 6:

[0076] When the foot pan 6 is in use, the bottom end of the support leg 1 abuts against the groove bottom of the abutting groove 7, so that the force receiving area of the bottom of the support leg 1 is larger, and the abutting groove 7 has a certain depth, so that the connecting shaft 4 is at the upper stop point 8 at this time.

[0077] Once it needs to be stored, an external force is first applied to guide the connecting shaft 4 from the upper stop point 8 to the lower stop point 9. When the lower stop point 9 is reached, the bottom end of the support leg 1 is at least flush with the lowest end of the deflection surface 21. Then, the foot pan 6 is driven to rotate towards the side of the support leg 1 close to the workbench about the connecting shaft 4, that is, by providing the deflection surface 21, when the support leg 1 moves relative to the foot pan 6, there will be no obstacles in the movement track of the support leg 1.

[0078] When the surface of the footbath member 6 in the length direction is parallel to the support leg 1, the bottom of the opening two 19 is in abutment with the surface of the support leg 1, and the side surface of the abutment strip 20 away from the bottom of the limiting groove 13 is in abutment with the surface of the support leg 1, and in the process of the connecting shaft 4 sliding from the upper stop point 8 to the lower stop point 9, the connecting shaft 4 will drive the elastic member 5 to generate a pulling force to reset the connecting shaft 4, and then, the elastic member 5 pulls the connecting shaft 4 to reset to form the storage state of the footbath member 6, in this process, the footbath member 6 is rotated towards the workbench side, so that the footbath member 6 will not be exposed on the side of the workbench, and this storage mode does not need to disassemble the footbath member 6, which reduces the installation cost of repeated disassembly and assembly.

[0079] Further limitation is made to the elastic member 5, so that when the elasticity of the elastic member 5 fails, it can be quickly replaced, and therefore, in some specific embodiments, both ends of the elastic member 5 are provided with a hanging hook 15.

[0080] The inner side wall of the cavity 3 is provided with a hanging point (generally, the hanging point can be selected as a hook, a groove, a pin or other ways, as long as the purpose of hanging the hanging hook 15 can be achieved), one of the hanging hooks 15 is connected with the hanging point, and the other hanging hook 15 is connected with the connecting shaft 4.

[0081] In some specific embodiments, the hanging point is a hanging hole 16 arranged in the inner side wall of the cavity 3, and the inner side wall of the hanging hole 16 is provided with an anti-skid point 17 to limit the hanging hook 15 connected in the hanging point.

[0082] When the elastic member 5 is installed:

[0083] One of the hanging hooks 15 is directly connected with the side wall of the connecting shaft 4, and the other hanging hook 15 can be connected with the anti-skid point 17 by means of a metal hook or the like, so as to limit the hanging hook 15 connected in the hanging point, and thus the connection of the elastic member 5 is completed, and the whole process is convenient, simple and fast, and the elastic member 5 can be quickly replaced when the elasticity fails.

[0084] The working principle is that the elastic member 5 is first placed in the end cover body 11 and installed in the support leg 1, and then the footbath member 6 is sleeved, the connecting shaft 4 is inserted, and the reference is made to Figure 6 One of the hanging hooks 15 is directly connected with the side wall of the connecting shaft 4, and the other hanging hook 15 can be connected with the anti-skid point 17 by means of a metal hook or the like, so as to limit the hanging hook 15 connected in the hanging point, and thus the connection of the elastic member 5 is completed.

[0085] At this time, the connecting shaft 4 is at the upper stop point 8 position, as shown in Figure 7As shown. The bottom end of the support leg 1 is in abutment with the bottom of the abutment groove 7 when the footbath 6 is in use, so that the bottom of the support leg 1 has a larger force receiving area, and the abutment groove 7 has a certain depth, so that the connecting shaft 4 is at the upper stop point 8 at this time.

[0086] Once it is needed to be stored, the connecting shaft 4 is first guided to slide from the upper stop point 8 to the lower stop point 9 by external force, and when reaching the lower stop point 9, the bottom end of the support leg 1 is at least flush with the lowest end of the deflection surface 21, and then the footbath 6 is driven to rotate towards the side of the workbench relative to the support leg 1 with the connecting shaft 4 as the rotation center, that is, by the arrangement of the deflection surface 21, when the support leg 1 and the footbath 6 move relative to each other, there will be no obstacles in the movement track of the support leg 1.

[0087] When the surface in the length direction of the footbath 6 is parallel to the support leg 1, the bottom of the opening two 19 is in abutment with the surface of the support leg 1, and the abutment strip 20 is in abutment with the surface of the support leg 1 away from the bottom of the limiting groove 13, and in the process of the connecting shaft 4 sliding from the upper stop point 8 to the lower stop point 9, the connecting shaft 4 will drive the elastic member 5 to generate a restoring force to pull the connecting shaft 4 back, and then the external force is removed, the elastic member 5 pulls the connecting shaft 4 back to form the storage state of the footbath 6, and in this process, the footbath 6 rotates towards the side of the workbench, so that the footbath does not protrude from the side of the workbench, and this storage method does not need to disassemble the footbath 6, which reduces the installation cost of repeated disassembly and assembly.

[0088] The above embodiments 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 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 self-reversing turnover foot plate for a climbing ladder, the climbing ladder having a support leg (1); characterized in that: The foot stool of the climbing ladder comprises a foot stool piece (6), a connecting shaft (4) and an elastic piece (5); The foot stool piece (6) is arranged at the bottom end of the supporting leg (1), the foot stool piece (6) is provided with a hinge hole, and the bottom end of the supporting leg (1) is provided with a limiting hole (2) corresponding to the hinge hole; The connecting shaft (4) passes through the hinge hole of the foot stool piece (6) and the limiting hole (2) of the supporting leg (1), and the foot stool piece (6) is hinged to the bottom end of the supporting leg (1), so that the foot stool piece (6) has a supporting state and a storage state; The limiting hole (2) has an upper stop point (8) and a lower stop point (9); The foot stool piece (6) is provided with an abutting groove (7) corresponding to the bottom end of the supporting leg (1) in the supporting state; The elastic piece (5) acts on the connecting shaft (4), forcing the connecting shaft (4) to have a downward trend from the lower stop point (9) to the upper stop point (8), and then the bottom end of the supporting leg (1) is inserted into the abutting groove (7) for limiting; When in use, under the action of external force, the elastic force of the elastic piece (5) is overcome, the bottom end of the supporting leg (1) is separated from the abutting groove (7) in the process that the connecting shaft (4) slides from the upper stop point (8) to the lower stop point (9), and the foot stool piece (6) is flipped to the storage state towards the inner side of the supporting leg (1), and after the external force is removed, the connecting shaft (4) is kept at the position of the upper stop point (8) by the elastic force of the elastic piece (5).

2. The inverted self-retracting fall arrest device of claim 1, wherein: The limiting hole (2) is a long strip-shaped hole arranged along the length direction of the supporting leg (1).

3. The inverted self-retracting fall arrest device of claim 1, wherein: The supporting leg (1) has a cavity (3) therein, and the supporting leg (1) is provided with a stabilizing piece located in the cavity (3) at the end away from the workbench, so as to limit the axial displacement of the connecting shaft (4) in the limiting hole (2).

4. The inverted self-retracting fall arrest device of claim 3, wherein: The stabilizing piece comprises an end cover body (11), the end cover body (11) is arranged in matching with the cross-sectional shape of the supporting leg (1) and is embedded into the bottom end of the supporting leg (1), both sides of the supporting leg (1) are provided with recesses (10), and both sides of the end cover body (11) are provided with stabilizing blocks (12) arranged in matching with the recesses (10) and capable of moving with the end cover body (11) and being embedded into the two recesses (10) respectively.

5. The inverted self-retracting fall arrest device of claim 4, wherein: The end cover body (11) is inserted into one end of the cavity (3) and has a containing groove (14), the containing groove (14) is arranged corresponding to the elastic piece (5), so as to limit the elastic piece (5).

6. The inverted self-retracting fall arrest device of claim 1, wherein: The foot stool piece (6) is provided with a limiting groove (13), the abutting groove (7) is arranged at the groove bottom of the limiting groove (13), and when the foot stool piece (6) is in the storage state, both inner side walls of the limiting groove (13) are arranged in close contact with the surfaces opposite to the two stabilizing blocks (12) respectively.

7. The inverted self-retracting fall arrest device of claim 6, wherein: The limiting groove (13) is arranged on the surface of the foot stool piece (6), and opening one (18) and opening two (19) are arranged at both ends of the limiting groove (13) along the rotating direction of the foot stool piece (6), a plurality of abutting strips (20) are arranged in the opening one (18) and are fixed to the groove bottom of the limiting groove (13), and the abutting groove (7) is formed between one end of the abutting strip (20) close to the opening two (19) and the opening two (19); The abutting strip (20) is provided with a deflection surface (21) near one end of the second opening (19).

8. The inverted self-retracting fall arrest device of claim 7, wherein: The side surface of the abutting strip (20) away from the bottom of the limiting groove (13) is flush with the bottom of the second opening (19). When the foot plate (6) rotates around the connecting shaft (4) to be parallel to the surface of the supporting leg (1) in the length direction of the foot plate (6), the bottom of the second opening (19) abuts against the surface of the supporting leg (1).

9. The inverted self-retracting fall arrest device of claim 3, wherein: Both ends of the elastic member (5) are provided with hanging hooks (15). The inner side wall of the cavity (3) is provided with a hanging point, one of the hanging hooks (15) is connected with the hanging point, and the other hanging hook (15) is connected with the connecting shaft (4).

10. The inverted self-retracting fall arrest device of claim 9, wherein: The hanging point is a hanging hole (16) arranged on the inner side wall of the cavity (3), and the inner side wall of the hanging hole (16) is provided with an anti-skid point (17) for limiting the hanging hook (15) connected in the hanging point.

Images