Shaft type folding insulating high-low stool

Abstract

The invention discloses a shaft type folding insulating high-low stool which comprises a front supporting frame, a rear supporting frame, a pedal ladder support and a ladder support, the front supporting frame obliquely extends forwards after being unfolded, and the bottom of the front supporting frame is supported on a supporting plane; the upper end of the rear supporting frame is hinged to the front supporting frame, the rear supporting frame obliquely extends backwards after being unfolded, the bottom of the rear supporting frame is supported on the supporting plane, and the rear supporting frame is located on the outer side of the front supporting frame in the folded state. A plurality of pedals are movably connected between the pedal step support and the front supporting frame, the pedal step support moves relative to the front supporting frame to unfold or fold the pedals, and the pedals are parallel to the supporting plane after being unfolded, are arranged in a step shape, are used for providing a pedal function and are stored on the inner side of the pedal step support in a folded state. The escalator support is hinged to the upper end of the rear supporting frame, is located above the pedal ladder support after being unfolded, is used for providing a hand holding function and is arranged on the rear side of the rear supporting frame side by side in a folded state. The folding mechanism is compact in structure and small in size after being folded.

Description

[Technical field]

[0001] The invention belongs to the technical field of electric power engineering, and in particular relates to insulating high and low stools. [Background technology]

[0002] Insulated high and low stools are a kind of safety equipment designed for the electrical industry, usually used in high voltage operations to protect operators from the harm of electric current. Usually composed of a top platform, support legs, foot pedals and connectors. Existing insulated high and low stools are large in size or made of heavy materials as a common tool in high voltage operations, which are bulky; large size and heavy weight affect transportation and storage, and may require additional resource investment, resulting in waste of resources and affecting the work efficiency of workers.

[0003] In order to solve the problem that the insulating high and low stools are bulky, large in size, and heavy, which affects transportation and storage, the prior art adopts a folding solution. For example, the Chinese invention patent with the authorization announcement number CN 213540230 U discloses a foldable insulating step stool, including a support frame 1, a support frame 2, a connecting rod and a plurality of pedals, wherein the support frame 1 is fixedly provided with a plurality of first support shafts, one end of the pedal is rotatably provided on the first support shaft, and the other end of the pedal is hinged to the connecting rod; the connecting rod is provided with a long hole, the support frame 2 is provided with a second support shaft, and the connecting rod slides along the long hole in cooperation with the second support shaft; the support frame 1 and the support frame 2 are provided with supporting feet at the bottom, and the supporting feet include a supporting shell, an anti-slip pad and a roller mechanism slidably provided inside the supporting shell.

[0004] However, when using the insulating high and low stool in the prior art for climbing work, it is difficult to keep the body stable after standing on the highest step, which poses a safety hazard. [Summary of the invention]

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an axially foldable insulated high and low stool, which is portable and convenient and quick to unfold and fold, and can quickly adapt to different working environments and needs, while solving the problem that it is difficult to keep the body stable after standing on the highest level pedal.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] Axis type folding insulated high and low stool, including:

[0008] A front support frame, which extends obliquely forward after being unfolded, and the bottom is supported on a support plane;

[0009] A rear support frame, the upper end of which is hinged to the front support frame, the rear support frame extends obliquely backward after being unfolded, and the bottom is supported on the support plane, and in the folded state, is located outside the front support frame;

[0010] A pedal ladder bracket, wherein the pedal ladder bracket and the front support frame are arranged side by side in front and back, and a plurality of pedals are movably connected between the pedal ladder bracket and the front support frame, and the pedal ladder bracket is movable relative to the front support frame to unfold or fold a plurality of pedals, and the plurality of pedals are parallel to the support plane and arranged in a ladder shape after unfolding, so as to provide a foot-operating function, and are stored inside the pedal ladder bracket in a folded state;

[0011] The escalator bracket is hinged to the upper end of the rear support frame, and is located above the step ladder bracket after being unfolded to provide a handhold function. In the folded state, the escalator bracket is arranged side by side on the rear side of the rear support frame.

[0012] Preferably, the front support frame includes two front side panels arranged side by side on the left and right sides and a front support plate connecting the two front side panels, and the rear support frame includes two rear side panels arranged side by side on the left and right sides and a rear support plate connecting the two rear side panels; the upper ends of the rear side panels are hinged to the upper ends of the front side panels, and in the folded state, the two front side panels are correspondingly located on the inner sides of the two rear side panels, and the rear support plate is located on the rear side of the front support frame.

[0013] Preferably, the axially folding insulated high and low stool also includes a pull plate, a first pin hole is provided on the front side plate, a first pin shaft is connected between the first pin hole and the pull plate, a slide groove is provided on the rear side plate, a sliding part is provided at the rear end of the pull plate, the sliding part is slidably connected to the slide groove, a second pin hole is provided on the pedal ladder bracket, and a second pin shaft is connected between the first pin hole and the front end of the pull plate.

[0014] Preferably, the pedal ladder bracket includes two bracket side panels arranged side by side on the left and right sides and an intermediate support member connecting the two bracket side panels, and the left and right sides of the pedal are correspondingly hinged to the two bracket side panels.

[0015] Preferably, the pedal comprises a rectangular pedal frame and a pedal panel welded to the pedal frame.

[0016] Preferably, the pedal frame is made by welding angle steels; and / or the pedal panel is a patterned steel plate.

[0017] Preferably, bottom support surfaces are provided at the bottom of the left and right sides of the pedal frame, and the bottom support surfaces abut against the middle support member after the pedal is unfolded.

[0018] Preferably, the escalator bracket is a U-shaped structure, and the free ends of the two side edges are hinged to the upper ends of the two rear side plates.

[0019] Preferably, the free ends of both side edges of the escalator bracket are correspondingly provided with a first hinged support, the upper ends of the two rear side plates of the rear support frame are correspondingly provided with a second hinged support, the first hinged support and the second hinged support are correspondingly provided with a first hinged part and a second hinged part, the first hinged part and the second hinged part are hingedly connected by a third pin shaft, and the first hinged part and the second hinged part are staggered in the left and right directions.

[0020] Preferably, the second hinged part is provided with a first fixing hole position deviating from the position of the third pin shaft, and the first hinged part is provided with a threaded hole, and the threaded hole is connected to a knob plunger, and the switching of the two state angles of unfolding and folding can be achieved by turning the knob plunger to disengage and rotate the first fixing hole position.

[0021] The technical solution adopted by the present invention has the following beneficial effects:

[0022] Since the main parts of the shaft-type folding insulating high and low stool are movably connected, the front support frame, the pedal ladder bracket, the rear support frame and the escalator bracket can be relatively movable and folded, and the design is reasonable, especially the rear support frame is located on the outside of the front support frame in the folded state, and the internal space of the rear support frame is utilized. When the pedals are folded, they are stored inside the pedal ladder bracket, which can reduce the space occupied in the front and rear directions. In addition, when the escalator bracket is folded, it is arranged side by side on the rear side of the rear support frame and folded as much as possible in the front and rear directions. Therefore, after folding, the structure is compact and the volume is small, and the space occupied is minimized. It can be folded and stored when not in use, saving a lot of storage space, facilitating transportation and storage, and is suitable for environments that require frequent movement. It is especially important in working environments with limited space.

[0023] After unfolding, the front support frame extends obliquely forward, and the bottom is supported on the support plane; the rear support frame extends obliquely backward, and the bottom is supported on the support plane, forming a stable support. In addition, after unfolding, the pedals are parallel to the support plane and arranged in a ladder shape to provide a pedaling function.

[0024] Different from ordinary insulated high and low stools, an escalator bracket is additionally provided. When unfolded, the escalator bracket is located above the pedal ladder bracket to provide a handhold function, which solves the problem of difficulty in keeping the body stable after standing on the highest pedal, thereby ensuring work safety.

[0025] Because it is portable and easy and quick to unfold and fold, it can quickly adapt to different working environments and needs, making it more convenient and efficient for power workers when performing high-altitude operations or equipment maintenance, improving work efficiency and thus reducing potential economic losses caused by work delays.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0027] The invention will be further described below in conjunction with the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the shaft-type folding insulating high and low stool after it is unfolded;

[0029] Figure 2 yes Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 3 It is a side view of the shaft-type folding insulated high and low stool after it is unfolded;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the shaft-type folding insulating high and low stool after it is unfolded;

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of the shaft-type folding insulating high and low stool after folding;

[0033] Figure 6 yes Figure 5 The enlarged structural diagram at G in the middle;

[0034] Figure 7 It is a side view of the shaft-type folding insulated high and low stool after folding;

[0035] Figure markings: front support frame 1, front side plate 11, front support plate 12, rear support frame 2, rear side plate 21, slide groove 211, rear support plate 22, second hinged support 23, first fixing hole 231, pin assembly 24, pedal ladder bracket 3, bracket side plate 31, intermediate support member 32, pedal 33, pedal frame 331, pedal panel 332, escalator bracket 4, first hinged support 41, knob plunger 42, first limit mating surface 43, second limit mating surface 44, pull plate 5, first pin 51, second pin 52. [Specific implementation method]

[0036] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0037] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0038] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "left", "right", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0042] Reference Figures 1 to 7 As shown, in order to adapt to the changing working environment, this embodiment provides an axis-type folding insulating high and low stool, which is portable and easy to unfold and fold, and includes:

[0043] A front support frame 1, which extends obliquely forward after being unfolded, and the bottom is supported on a support plane;

[0044] A rear support frame 2, the upper end of which is hinged to the front support frame, the rear support frame extends obliquely backward after being unfolded, and the bottom is supported on the support plane, and in the folded state, is located outside the front support frame;

[0045] A pedal ladder bracket 3, wherein the pedal ladder bracket and the front support frame are arranged side by side in front and back, and a plurality of pedals are movably connected between the pedal ladder bracket and the front support frame, and the pedal ladder bracket is movable relative to the front support frame to unfold or fold a plurality of pedals, and the plurality of pedals are parallel to the support plane and arranged in a ladder shape after unfolding, so as to provide a footrest function, and are stored inside the pedal ladder bracket in a folded state;

[0046] The escalator bracket 4 is hinged to the upper end of the rear support frame and is located above the step ladder bracket after being unfolded to provide a handhold function. In the folded state, the escalator bracket is arranged side by side on the rear side of the rear support frame.

[0047] Since the main parts of the shaft-type folding insulating high and low stool are movably connected, the front support frame, the pedal ladder bracket, the rear support frame and the escalator bracket can be relatively movable and folded, and the design is reasonable, especially the rear support frame is located on the outside of the front support frame in the folded state, and the internal space of the rear support frame is utilized. When the pedals are folded, they are stored inside the pedal ladder bracket, which can reduce the space occupied in the front and rear directions. In addition, when the escalator bracket is folded, it is arranged side by side on the rear side of the rear support frame and folded as much as possible in the front and rear directions. Therefore, after folding, the structure is compact and the volume is small, and the space occupied is minimized. It can be folded and stored when not in use, saving a lot of storage space, facilitating transportation and storage, and is suitable for environments that require frequent movement. It is especially important in working environments with limited space.

[0048] After unfolding, the front support frame extends obliquely forward, and the bottom is supported on the support plane; the rear support frame extends obliquely backward, and the bottom is supported on the support plane, forming a stable support. In addition, after unfolding, the pedals are parallel to the support plane and arranged in a ladder shape to provide a pedaling function.

[0049] Different from ordinary insulated high and low stools, an escalator bracket is additionally provided. When unfolded, the escalator bracket is located above the pedal ladder bracket to provide a handhold function, which solves the problem of difficulty in keeping the body stable after standing on the highest pedal, thereby ensuring work safety.

[0050] Because it is portable and easy and quick to unfold and fold, it can quickly adapt to different working environments and needs, making it more convenient and efficient for power workers when performing high-altitude operations or equipment maintenance, improving work efficiency and thus reducing potential economic losses caused by work delays.

[0051] Specifically, the front support frame 1 includes two front side panels 11 arranged side by side on the left and right sides and a front support plate 12 connecting the two front side panels, and the rear support frame 2 includes two rear side panels 21 arranged side by side on the left and right sides and a rear support plate 22 connecting the two rear side panels; the upper ends of the rear side panels are hinged to the upper ends of the front side panels, and in the folded state, the two front side panels are correspondingly located on the inner sides of the two rear side panels, and the rear support plate is located on the rear side of the front support frame.

[0052] Furthermore, the shaft-type folding insulating high and low stool also includes a pull plate 5, a first pin hole is provided on the front side plate, a first pin shaft 51 is connected between the first pin hole and the pull plate, a slide groove 211 is provided on the rear side plate, a sliding part is provided at the rear end of the pull plate, the sliding part is slidably connected to the slide groove, a second pin hole is provided on the step ladder bracket, and a second pin shaft 52 is connected between the second pin hole and the front end of the pull plate. With the above structure, when the step ladder bracket moves up and down, a plurality of step plates can be unfolded or folded, and the front support frame and the rear support frame can also be relatively unfolded or folded.

[0053] Among them, the pedal ladder bracket 3 includes two bracket side panels 31 arranged side by side on the left and right sides and an intermediate support member 32 connecting the two bracket side panels. The left and right sides of the pedal are hinged to the two bracket side panels respectively, and are also hinged to the two front side panels to form a hinge structure. Therefore, to switch from unfolding to folding, deformation can be achieved by simply lifting the front end of the top pedal.

[0054] Specifically, the pedal 33 includes a rectangular pedal frame 331 and a pedal panel 332 welded to the pedal frame. The pedal frame is made of angle steel. The pedal panel is a patterned steel plate. The intermediate support member can be arranged one by one with the pedals and is located below the pedals to provide lower support after the pedals are unfolded. In addition, the bottom of the left and right sides of the pedal frame are provided with a bottom support surface, which is an inclined surface. After the pedal is unfolded, the bottom support surface abuts against the intermediate support member to enhance the stability of the pedal.

[0055] In some embodiments, the escalator bracket 4 is a U-shaped structure, and the free ends of the two side edges thereof are hinged to the upper ends of the two rear side plates. Among them, the free ends of the two side edges of the escalator bracket 4 are correspondingly provided with a first hinge support 41, and the upper ends of the two rear side plates of the rear support frame are correspondingly provided with a second hinge support 23, and the first hinge support 41 and the second hinge support 23 are correspondingly provided with a first hinge part and a second hinge part, and the first hinge part and the second hinge part are hinged through a pin assembly 24. Here, the pin assembly 24 can be a bolt assembly, including a screw and a nut, one end of the screw is provided with a nut for axial limitation, the screw moves through the shaft holes on the first hinge part and the second hinge part, and the other end is connected to a nut for axial limitation, and the nut can be a flat square shape, and the nut can be a hexagonal nut. The first hinge part and the second hinge part are correspondingly provided with a step structure to form a left-right staggered structure. In addition, a first limit matching surface 43 and a second limit matching surface 44 are provided corresponding to the unfolded state and the folded state of the escalator bracket 4.

[0056] Further, the second hinged part is provided with a first fixing hole 231 at a position deviating from the pin shaft. Two first fixing holes 231 are provided corresponding to the unfolded state and the folded state of the escalator bracket 4. The first hinged part is provided with a threaded hole, and a nut can be welded to form a threaded hole to avoid drilling a threaded hole. The threaded hole is connected with a knob plunger 42, which includes a knob part and a plunger part. By screwing the knob plunger to disengage the third rotating fixed hole, the switching between the unfolded and folded states is realized. In this way, after the escalator bracket 4 is fully unfolded by rotation, the first limiting matching surface 43 on the first hinged part and the second hinged part forms a match, and it is impossible to continue to rotate. At this time, the knob plunger can be screwed clockwise to make the knob plunger enter the third rotating fixed hole to maintain the unfolded state; after the escalator bracket 4 is folded by rotation, the second limiting matching surface 44 on the first hinged part and the second hinged part forms a match, and it is impossible to continue to rotate. At this time, the knob plunger can be screwed clockwise to make the knob plunger enter the third rotating fixed hole to maintain the folded state. The escalator / guard ladder uses a rotating shaft quick-release pin to achieve the switching between the two profiles of unfolding and folding.

[0057] The above is only a specific embodiment of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. Axial folding insulated high and low stool, characterized in that: include: A front support frame, which extends obliquely forward after being unfolded, and the bottom is supported on a support plane; A rear support frame, the upper end of which is hinged to the front support frame, the rear support frame extends obliquely backward after being unfolded, and the bottom is supported on the support plane, and in the folded state, is located outside the front support frame; A pedal ladder bracket, wherein the pedal ladder bracket and the front support frame are arranged side by side in front and back, and a plurality of pedals are movably connected between the pedal ladder bracket and the front support frame, and the pedal ladder bracket is movable relative to the front support frame to unfold or fold a plurality of pedals, and the plurality of pedals are parallel to the support plane and arranged in a ladder shape after unfolding, so as to provide a foot-operating function, and are stored inside the pedal ladder bracket in a folded state; The escalator bracket is hinged to the upper end of the rear support frame, and is located above the step ladder bracket after being unfolded to provide a handhold function. In the folded state, the escalator bracket is arranged side by side on the rear side of the rear support frame.

2. The shaft-type folding insulating high and low stool according to claim 1, characterized in that: The front support frame includes two front side panels arranged side by side on the left and right sides and a front support plate connecting the two front side panels, and the rear support frame includes two rear side panels arranged side by side on the left and right sides and a rear support plate connecting the two rear side panels; the upper ends of the rear side panels are hinged to the upper ends of the front side panels, and in the folded state, the two front side panels are correspondingly located on the inner sides of the two rear side panels, and the rear support plate is located on the rear side of the front support frame.

3. The shaft-type folding insulating high and low stool according to claim 2, characterized in that: The axially foldable insulating high and low stool also includes a pull plate, a first pin hole is provided on the front side plate, a first pin shaft is connected between the first pin hole and the pull plate, a slide groove is provided on the rear side plate, a sliding part is provided at the rear end of the pull plate, the sliding part is slidably connected to the slide groove, a second pin hole is provided on the pedal ladder bracket, and a second pin shaft is connected between the first pin hole and the front end of the pull plate.

4. The shaft-type folding insulating high and low stool according to claim 2, characterized in that: The pedal ladder bracket comprises two bracket side plates arranged side by side on the left and right sides and an intermediate support member connecting the two bracket side plates. The left and right sides of the pedal are correspondingly hinged to the two bracket side plates.

5. The shaft-type folding insulating high and low stool according to claim 4, characterized in that: The pedal comprises a rectangular pedal frame and a pedal panel welded to the pedal frame.

6. The shaft-type folding insulating high and low stool according to claim 5, characterized in that: The pedal frame is made by welding angle steels; and / or the pedal panel is a patterned steel plate.

7. The shaft-type folding insulating high and low stool according to claim 5, characterized in that: Bottom support surfaces are provided at the bottoms of the left and right sides of the pedal frame, and the bottom support surfaces abut against the middle support member after the pedal is unfolded.

8. The shaft-type folding insulating high and low stool according to claim 2, characterized in that: The escalator bracket is a U-shaped structure, and the free ends of the two side edges are hinged to the upper ends of the two rear side plates.

9. The shaft-type folding insulating high and low stool according to claim 8, characterized in that: The free ends of both side edges of the escalator bracket are correspondingly provided with a first hinged support, the upper ends of the two rear side plates of the rear support frame are correspondingly provided with a second hinged support, the first hinged support and the second hinged support are correspondingly provided with a first hinged part and a second hinged part, the first hinged part and the second hinged part are hingedly connected by a third pin shaft, and the first hinged part and the second hinged part are staggered in the left and right directions.

10. The shaft-type folding insulating high and low stool according to claim 9, characterized in that: The second hinged part is provided with a first fixing hole at a position deviating from the third pin shaft, and the first hinged part is provided with a threaded hole, and the threaded hole is connected to a knob plunger. By turning the knob plunger to disengage and rotate the first fixing hole, the angle switching between the unfolding and folding states can be achieved.

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